Do not leak the shaders cache

When finalizing the shader cache object we need to delete the shaders
and programs we are caching as well.

.gitlab-ci.yml

@@ -0,0 +1,43 @@
+stages:
+  - build
+  - flatpak
+
+gtk:
+  image: ebassi/gitlab-gtk:latest
+  stage: build
+  before_script:
+    - export CCACHE_DISABLE=true_
+  script:
+    - bash -x ./.gitlab-ci/test-docker.sh
+  cache:
+    paths:
+      - subprojects/gdk-pixbuf/
+      - subprojects/glib/
+      - subprojects/graphene/
+      - subprojects/libepoxy/
+      - subprojects/pango/
+  artifacts:
+    when: on_failure
+    name: "gtk-${CI_COMMIT_REF_NAME}"
+    paths:
+      - "${CI_PROJECT_DIR}/_build/meson-logs"
+
+flatpak:demo:
+  image: registry.gitlab.com/alatiera/gnome-nightly-oci/gnome-master:latest
+  stage: flatpak
+  script:
+    - bash -x ./.gitlab-ci/flatpak-build.sh org.gtk.Demo
+  artifacts:
+    paths:
+      - org.gtk.Demo-dev.flatpak
+    expire_in: 1 day
+
+flatpak:widget-factory:
+  image: registry.gitlab.com/alatiera/gnome-nightly-oci/gnome-master:latest
+  stage: flatpak
+  script:
+    - bash -x ./.gitlab-ci/flatpak-build.sh org.gtk.WidgetFactory
+  artifacts:
+    paths:
+      - org.gtk.WidgetFactory-dev.flatpak
+    expire_in: 1 day

.gitlab-ci/Dockerfile

@@ -0,0 +1,79 @@
+FROM fedora:27
+
+RUN dnf -y install \
+    adwaita-icon-theme \
+    atk-devel \
+    at-spi2-atk-devel \
+    avahi-gobject-devel \
+    cairo-devel \
+    cairo-gobject-devel \
+    ccache \
+    colord-devel \
+    cups-devel \
+    desktop-file-utils \
+    elfutils-libelf-devel \
+    fribidi-devel \
+    gcc \
+    gcc-c++ \
+    gdk-pixbuf2-devel \
+    gdk-pixbuf2-modules \
+    gettext \
+    git \
+    glib2-devel \
+    glibc-devel \
+    glibc-headers \
+    gobject-introspection-devel \
+    graphene-devel \
+    gstreamer1-devel \
+    gstreamer1-plugins-good \
+    gstreamer1-plugins-bad-free-devel \
+    gstreamer1-plugins-base-devel \
+    iso-codes \
+    itstool \
+    json-glib-devel \
+    libattr-devel \
+    libepoxy-devel \
+    libffi-devel \
+    libmount-devel \
+    librsvg2 \
+    libselinux-devel \
+    libXcomposite-devel \
+    libXcursor-devel \
+    libXcursor-devel \
+    libXdamage-devel \
+    libXfixes-devel \
+    libXi-devel \
+    libXinerama-devel \
+    libxkbcommon-devel \
+    libXrandr-devel \
+    libXrender-devel \
+    libxslt \
+    mesa-dri-drivers \
+    mesa-libEGL-devel \
+    mesa-libwayland-egl-devel \
+    ninja-build \
+    pango-devel \
+    pcre-devel \
+    python3 \
+    python3-pip \
+    python3-wheel \
+    redhat-rpm-config \
+    sassc \
+    systemtap-sdt-devel \
+    vulkan-devel \
+    wayland-devel \
+    wayland-protocols-devel \
+    which \
+    xorg-x11-server-Xvfb \
+ && dnf clean all
+
+RUN pip3 install meson
+
+ARG HOST_USER_ID=5555
+ENV HOST_USER_ID ${HOST_USER_ID}
+RUN useradd -u $HOST_USER_ID -ms /bin/bash user
+
+USER user
+WORKDIR /home/user
+
+ENV LANG C.UTF-8

.gitlab-ci/flatpak-build.sh

@@ -0,0 +1,44 @@
+#!/bin/bash
+
+set -e
+
+appid=$1
+
+builddir=app
+repodir=repo
+
+flatpak-builder \
+        --stop-at=gtk \
+        ${builddir} \
+        build-aux/flatpak/${appid}.json
+
+flatpak-builder \
+        --run ${builddir} build-aux/flatpak/${appid}.json \
+        meson \
+                --prefix /app \
+                --libdir /app/lib \
+                --buildtype debug \
+                -Dx11-backend=true \
+                -Dwayland-backend=true \
+                -Dprint-backends=file \
+                -Dbuild-tests=false \
+                -Dbuild-examples=false \
+                -Dintrospection=false \
+                -Ddemos=true \
+                _build .
+
+flatpak-builder \
+        --run ${builddir} build-aux/flatpak/${appid}.json \
+        ninja -C _build install
+
+flatpak-builder \
+        --finish-only \
+        --repo=${repodir} \
+        ${builddir} \
+        build-aux/flatpak/${appid}.json
+
+flatpak build-bundle \
+        ${repodir} \
+        ${appid}-dev.flatpak \
+        --runtime-repo=https://flathub.org/repo/flathub.flatpakrepo \
+        ${appid}

.gitlab-ci/run-docker.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+set -e
+
+TAG="ebassi/gitlab-gtk:latest"
+
+sudo docker build --build-arg HOST_USER_ID="$UID" --tag "${TAG}" \
+    --file "Dockerfile" .
+sudo docker run --rm --security-opt label=disable \
+    --volume "$(pwd)/..:/home/user/app" --workdir "/home/user/app" \
+    --tty --interactive "${TAG}" bash

.gitlab-ci/test-docker.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+set -e
+
+srcdir=$(pwd)
+
+meson \
+        -Dx11-backend=true \
+        -Dwayland-backend=true \
+        -Dbroadway-backend=true \
+        -Dvulkan=yes \
+        _build $srcdir
+
+cd _build
+
+ninja
+
+xvfb-run -a -s "-screen 0 1024x768x24" \
+    meson test \
+        --print-errorlogs \
+        --suite=gtk+ \
+        --no-suite=gtk+:gsk \
+        --no-suite=gtk+:a11y

.gitlab/issue_templates/Bug.md

@@ -0,0 +1,39 @@
+## Steps to reproduce
+
+ 1. ...
+ 2. ...
+ 3. ...
+
+<!--
+  You should try and reproduce with the demos applications available
+  under the `demos` directory, or the test programs in the `tests` directory.
+  Alternatively, please attach a *small and self-contained* example that
+  exhibits the issue.
+-->
+
+## Current behavior
+<!--
+  Please describe the current behaviour
+-->
+
+## Expected outcome
+<!--
+  Please describe the expected outcome
+-->
+
+## Version information
+<!--
+ - which version of GTK+ you are using
+ - what operating system and version
+  - for Linux, which distribution
+ - if you built GTK+ yourself, the list of options used to configure the build
+-->
+
+## Additional information
+<!--
+ - If the bug was a crash, the exact text that was printed out
+   when the crash occurred.
+ - If the bug was a crash, attaching a stack trace obtained using
+   GDB is appreciated; follow the instructions on the wiki:
+   https://wiki.gnome.org/Community/GettingInTouch/Bugzilla/GettingTraces
+-->

CONTRIBUTING.md

@@ -1,30 +1,41 @@
 If you want to hack on the GTK+ project, you'll need to have the development
 tools appropriate for your operating system, including:
 
-	- Python (2.7 or 3.x)
-	- Meson
-	- Ninja
-	- Gettext (19.7 or newer)
-	- a C99 compatible compiler
+ - Python 3.x
+ - Meson
+ - Ninja
+ - Gettext (19.7 or newer)
+ - a C99 compatible compiler
 
 Up-to-date instructions about developing GNOME applications and libraries
 can be found here:
 
-        https://developer.gnome.org
+ * https://developer.gnome.org
 
-Information about using git with GNOME can be found here:
+Information about using GitLab with GNOME can be found here:
 
-        https://wiki.gnome.org/Git
+ * https://wiki.gnome.org/GitLab
 
 In order to get Git GTK+ installed on your system, you need to have the
 required versions of all the GTK+ dependencies; typically, this means a
-recent version of GLib, Cairo, Pango, and ATK.
+recent version of GLib, Cairo, Pango, and ATK, as well as the platform
+specific dependencies for the windowing system you are using (Wayland, X11,
+Windows, or macOS).
 
-**Note**: if you plan to push changes to back to the master repository and
-have a GNOME account, you want to use the following instead:
+You should start by forking the GTK repository from the GitLab web UI, and
+cloning from your fork:
+
+```ssh
+$ git clone https://gitlab.gnome.org/yourusername/gtk.git
+$ cd gtk
+```
+
+**Note**: if you plan to push changes to back to the main repository and
+have a GNOME account, you can skip the fork, and use the following instead:
 
 ```sh
-$ git clone ssh://<username>@git.gnome.org/git/gtk+
+$ git clone git@gitlab.gnome.org:GNOME/gtk.git
+$ cd gtk
 ```
 
 To compile the Git version of GTK+ on your system, you will need to
@@ -32,9 +43,21 @@ configure your build using Meson:
 
 ```sh
 $ meson _builddir .
+$ cd _builddir
+$ ninja
 ```
 
-For information about submitting patches and pushing changes to Git, see the
-`README.md` and `README.commits` files. In particular, don't, under any
-circumstances, push anything to Git before reading and understanding
-`README.commmits`.
+**Note**: For information about submitting patches and pushing changes
+to Git, see the `README.md` and `README.commits` files. In particular,
+don't, under any circumstances, push anything to Git before reading and
+understanding `README.commmits`.
+
+Typically, you should work on your own branch:
+
+```sh
+$ git checkout -b your-branch
+```
+
+Once you've finished working on the bug fix or feature, push the branch
+to the Git repository and open a new merge request, to let the GTK
+maintainers review your contribution.

NEWS.pre-2.0

@@ -0,0 +1,903 @@
+Overview of Changes in GTK+ 2.0.0
+=================================
+
+* GtkTreeView fixes [Jonathan Blandford, Kristian Rietveld, Darin Adler]
+* Build fixes [Anders Carlsson, Tor Lillqvist, Manish Singh]
+* Bug fixes. [Thomas Leonard, Owen Taylor]
+
+Overview of Changes in GTK+ 2.0.0 rc1
+=====================================
+
+* GtkTreeView fixes [Kristian Rietveld, Jonathan Blandford, Richard Hult]
+* Text widget fixes [Havoc Pennington]
+* Efficiency fixes when using Xft [Owen Taylor]
+* Key handling fixes and other fixes for Win32 [Hans Breuer, Tor Lillqvist]
+* Try to fix key handling without XKEYBOARD extension [Owen]
+* Documentation fixes and improvements 
+  [Matthias Clasen, Alexey Malyshev, Akira Tagoh, Vitaly Tishkov]
+* Widget drawing improvements [Soeren Sandmann]
+* Allow cycling between multiple menu bars with <Control>Tab [Owen]
+* Try to build libraries with only shared library dependencies on Xft to 
+  deal with transition to Xft2 [Owen]
+* Portability fixes [Owen, Miroslaw Dobrzanski-Neumann]
+* Don't use red as the default cursor color [Owen]
+* Bug fixes, bug fixes, bug fixes.
+
+Other contributors: Darin Adler, Jacob Berkman, Kevin Breit, Hans Breuer, 
+  Anders Carlsson, Damon Chaplin, Finlay Dobbie, Jody Goldberg,
+  Andreas J. Guelzow, Scott Guilbeaux, Vlad Harchev, James Henstridge,
+  Tim Janik, Satyajit Kanungo, Charles Kerr, Sergey Kuzminov, Miles Lane, 
+  Alexander Larsson, Paolo Maggi, Skip Montaro, Jan Mynarik, Sven Neumann, 
+  Padraig O'Briain, Narayani Pattipati, Mark Patton, Havoc Pennington, 
+  Ettore Perazzoli, Guillermo S. Romero, Manish Singh, Morten Welinder
+
+Overview of Changes in GTK+ 1.3.15
+==================================
+
+* New stock and improved icon images
+  [Tuomas Kuosmanen, Jakub Steiner, Anders Carlsson]
+* Widget drawing improvements for check and radio buttons,
+  spinbuttons [Soeren Sandmann]
+* Clean up module search path algorithm, use GTK_PATH [Owen Taylor]
+* Add GtkSetting for font name. [Richard Hestilow]
+* Much improved key matching code, accelerators work independent
+  of group [Owen]
+* Make mnemonics work for embedded GtkPlug widgets [Owen]
+* Keynav improvements for GtkTreeView [Kristian Rietveld]
+* Fix gtk_tree_view_scroll_to_cell() [Jonathan Blandford]
+* Rename gtk_tree_view_get_iter_root() and gtk_tree_path_new_root()
+  to gtk_tree_view_get_iter_first() and gtk_tree_path_new_first(),
+  add compatibility macros.
+* GtkTreeView bug fixes [Kristian, Anders, Damon Chaplin]
+* GtkTextView bug fixes [Havoc Pennington]
+* Pad class structures for future binary compatibility [Owen]
+* Tutorial improvements [Sven Neumann, Matthias Clasen]
+* Fixes for MULTIPLE selection target [Gregory Merchan, Owen]
+* Fix problems with initial widget size [Owen]
+* AIX compilation fixes [Miroslaw Dobrzanski-Neumann]
+* Win32 fixes [Hans Breuer, Tor Lillqvist]
+* Miscellaneous bug fixes
+
+Other contributors: David L. Cooper, Eric Fischer, Jody Goldberg, 
+  Satajyit Kanungo, Thomas Leonard, Mark Patton, Manish Singh, 
+  Nicolas Setton
+
+Overview of Changes in GTK+ 1.3.14
+==================================
+
+* Keyboard focus improvements [Owen Taylor]
+* Code cleanup [Matthias Clasen, Manish Singh, Darin Adler]
+* Fix accidentally exported variables [Mark McLoughlin]
+* GtkTreeView fixes [Jonathan Blandford, Kristian Rietveld, John Harper, Darin]
+* Default to yellow tooltips [Owen]
+* RC file fixes for reloading, priorities [Owen, Matthias]
+* GtkMenu behavior improvements and bug fixes [Owen, Arnaud Charlet]
+* GtkTextView fixes [Havoc Pennington, Daniel Elstner, Dennis Bjorklund]
+* Improve keynav for paned widgets, tooltips, spin buttons, notebooks, 
+  scrolled windows [Soeren Sandmann, Padraig, Owen]
+* Add Emacs/Default key themes [Owen]
+* Win32 fixes [Hans Breuer, Tor Lillqvist]
+* Ethiopic input methods [Daniel Yacob]
+* Opaque paned window resizing [Soeren]
+* Tweak table expansion behavior [Tim Janik]
+* Fix GtkCalendar focus drawing [Bill Haneman]
+* Allow themeable cursor thickness [Bill]
+* Start of fixing of tutorial for GTK+-2.0 [Matthias]
+* Add a ::adjust-bounds signal to GtkRange to allow spreadsheet style
+  scrollbars. [Jody Goldberg]
+* Add the ability to turn on multiple selection for GtkFileSel [Manish]
+* Bug fixes
+
+Other contributors: Jacob Berkman, Padraig O'Briain, Anders Carlsson,
+ Johan Dahlin, Richard Hult, Stefan Kost, Alex Larsson, Thomas Leonard,
+ Paolo Maggi, Alexey Malyshev, Federico Mena Quintero, Skip Montaro,
+ Sven Neumann, Havoc Pennington, Laszlo Peter, Christian Rose, Joe Shaw,
+ Kevin Vandersloot,  Morten Welinder, Peter Williams
+
+Overview of Changes in GTK+ 1.3.13
+==================================
+
+* Tree view fixes. [Kristian Rietveld, Jonathan Blandford, Anders Carlsson]
+* Tree view support for low-vision themes [Bill Haneman]
+* Text view bug fixes. [Havoc Pennington]
+* Win32 fixes and improvements.  [Tor Lillqvist, Hans Breuer, 
+  Archaeopteryx Software]
+* Documentation improvements [Matthias Clasen, Havoc Pennington]
+* Accelerate alpha compositing using RENDER extension if present,
+  and optimize the non-RENDER case a lot. [Owen Taylor]
+* Add support for "optional keybindings" (action signal returns FALSE) [Owen]
+* Fixed the infamous changing directory deletes filename bug 
+  [Owen and a cast of thousands]
+* Add mouse cursor hiding for text widgets [Anders Carlsson]
+* Simple Hangul input module [Yusuke Tabata]
+* Removed the scary startup warning.
+* GdkPixbuf pixel handling fixes [Owen, Michael Hore, Jim Cape]
+* Converted GtkFileSelection and GtkFontSelection to use GtKTreeView widgets
+  instead of the deprecated GtkCList [Owen]
+* gtkhsv.h was installed by mistake, fixed that. [reported by Ross Burton]
+* gdk_pixbuf_render_to_drawable() now also handles alpha pixbufs.
+* Made Gtkimage draw GtkPixmap, GtkImage, GdkPixbuf insensitive, prelighted,
+  etc. [Havoc, Owen]
+* Marked gtk_item_factory_path_from_widget() G_CONST_RETURN. [Matt Wilson]
+* gtk_image_menu_item_new_from_stock() now falls back to
+  new_with_mnemonic, for consistency with gtk_button_new_from_stock()
+  [Havoc Pennington]
+* GdkModifierType is now consistently used for modifier mask parameters
+  [Mark Patton]
+* gtk_widget_set_accel_path() is now publically exported.
+
+Other contributors: Darin Adler, Jeffrey Baker, Damon Chaplin, Brian Cameron, 
+  Murray Cumming, James Henstridge, Jacob Berkman, Arnaud Charlet, Jeff Franks, 
+  Jeff Garzik, Jody Goldberg, Diego Gonzalez, Melvin Hadasht, Raja Harinath, 
+  Tim Janik, Mike Kestner, Mathieu Lacage, Alex Larsson, Ryan Lovett, 
+  Mark McLoughlin, Sven Neumann, Padraig O'Briain, Xavier Ordoquy, Chris Phelps, 
+  Detlef Reichl, Guillermo S. Romero, Federico Mena Quintero, Manish Singh,
+  HideToshi Tajima, Vitaly Tishkov, Jon Trowbridge, Sergey Vlasov.
+
+Overview of Changes in GTK+ 1.3.12
+==================================
+
+* Fix problems with PNG saving [Michael Natterer]
+* Cleanups of deprecated usages [Sebastian Wilhelmi]
+* Win32 fixes [Tor Lillqvist]
+* Documentation improvements [Matthias Clasen, Havoc Pennington, 
+  Vitaly Tishkov]
+* Frame buffer port fixes [Manish Singh]
+* GtkTextView bug fixes [Havoc Pennington, Chris Phelps]
+* Menu behavior improvements [Kristian Rietveld]
+* Make focus line width configurable, focus color work on 
+  dark themes. [Bill Haneman, Owen Taylor]
+* Add state argument to gtk_paint_focus() [Bill]
+* Added incremental revalidation to tree view, for better apparent speed 
+  [Jonathan Blandford]
+* Remove useless gtk_tree_view_column_cell_event() [Jonathan]
+* Display XIM status in a separate window [HideToshi Tajima]
+* Add GDK_DEBUG=nograbs to disable pointer, keyboard grabs [Jacob Berkman]
+* Add menu of Unicode control characters to GtkEntry, GtkTextView 
+  [Dov Grobgeld, Havoc]
+* Pass key releases along to input methods [Owen]
+* Many bug fixes
+
+Other contributors: Darin Adler, Fabrice Bellet, Chris Blizzard, 
+  Hans Breuer, Anders Carlsson, Damon Chaplin, Murray Cumming, Jeff Franks, 
+  James Henstridge, Tim Janik, Alex Larsson, George Lebl, Kjartan, Maraas, 
+  Sven Neumann, Seth Nickell, Padraig O'Briain, Soeren Sandmann, Manish Singh, 
+  Matt Wilson
+
+Overview of Changes in GTK+ 1.3.11
+==================================
+
+* Massive rework of accelerator API and implementation (Tim Janik)
+* Major fixes to resizing and redrawing to eliminate hysteresis
+  and optimize. (Owen Taylor, Soeren Sandmann)
+* Make many widgets NO_WINDOW to improve appearance and reduce
+  drawing overhead (Owen)
+* Text view fixes (Havoc Pennington)
+* Make child widgets in GtkTextView work (Havoc)
+* GtkTreeModelSort fixage (Jonathan Blandford, Kristian Rietveld)
+* Clean up GtkTreeView drag and drop support (Owen)
+* Misc tree view fixes and improvements (Jonathan, Kristian, Anders, Matt Wilson)
+* Add gtk_window_get/set_focus(), gtk_window_set_default() as public
+  functions (Owen, Damian Ivereigh)
+* Fixes to GtkPlug/GtkSocket (Michael Meeks, Owen)
+* Change button ordering in standard dialogs to correspond to 
+  GNOME usability project proposal (Gregory Merchan)
+* Add support for context sensitivity in input methods (Owen)
+* Hook up gtk_im_context_set_use_preedit() (Hidetoshi Tajima)
+* Fix gdk_window_scroll() and other aspects of big windows (Owen)
+* Remove need for X connection for class initialization (Jacob Berkman)
+* Propagate key events to parents of focused widget (Owen)
+* Don't export normal GTK+ marshalers, export deprecated compat marshalers (Owen)
+* Many Win32 Fixes and improvements (Hans Breuer, Tor Lillqvist)
+* Bug and documentation fixing (Matthias Clasen, Anders Carlsson,
+  Jacob Berkman, others.)
+
+Other Contributors:
+  Darin Adler, Marius Andreiana, Erwann Chenede, Murray Cumming, Janet Davis, 
+  Daniel Egger, Daniel Elstner, Jeff Franks, Alex Larsson, George Lebl, 
+  Sergey Kuzminov, Eric Lemings, Arkadiusz Miskiewicz, Padraig O'Briain, Sven Neumann, 
+  Kristian Rietveld, Nicolas Setton, Manish Singh,  Vitaly Tishkov, Sebastian Wilhelmi, 
+  Michael Natterer
+
+Overview of Changes in GTK+ 1.3.10
+==================================
+
+* GtkTextView fixes [Havoc Pennington]
+* GtkTreeView fixes and improvements [Jonathan Blandford, Kristian,
+  Manish Singh, Joshua Pritikin, Oleg Maiboroda, James Henstridge]
+* gtkdemo improvements [Kristian Rietveld]
+* Drag and drop fixes to generic code and widgets 
+  [Owen Taylor, Damian Ivereigh]
+* Documentation improvement [Havoc Pennington, Matthias Clasen]
+* Spelling fixes [Jacob Berkman]
+* Move signals to the GtkEditable interface [Kristian]
+* Further stock image improvements [Jakub Steiner]
+* Support text chunks for the PGN loader, add gdk_pixbuf_get_option()
+  [Sven Neumann]
+* Rename gdk_pixbuf_new_from_stream back to new_from_inline [Owen]
+* Automatically call setlocale(), unless explicitly disabled [Owen]
+* Property addition to various widgets [Michael Meeks, Owen]
+* Support building with automake-1.4 [James]
+* Make GtkRadioButton groups act as a single focus point [Owen]
+* Move gdk_window_lookup etc. to be cross-platform [Matthias]
+* Draw spinbuttons variably sized [Kristian]
+* Separate GdkAtom out from X atoms for compatibility with future
+  multihead changes [Owen]
+* Require gdk_threads_init() to be explicitly called instead
+  of piggybacking off of g_thread_init(). [Owen]
+* Improvements to text-view/label/entry popup menus [Damian, Jacob, Owen]
+* Bug fixes and cleanup [Matthias, others]
+
+Other Contributors:
+  Mark McLoughin, Mikael Hermansson, Soeren Sandmann, Anders Carlsson,
+  Tim Janik, Murray Cumming, Hidetoshi Tajima, Padraig O'Briain, 
+  Hans Breuer, Vitaly Tishkov, Dov Grobgeld
+ 
+
+Overview of Changes in GTK+ 1.3.9
+=================================
+
+* Add editable text cells to GtkTreeView.
+  Keynav, drawing fixes in GtkTreeView [Jonathan Blandford]
+* Text widget no longer always has a \n in it. [Havoc Pennington]
+* Text widget bug fixes [Havoc, Dov Grobgeld, Hidetoshi Tajima]
+* Allow -1 for width/height in gdk_pixbuf_render_*(). [Matthias Clasen]
+* Minor fix for major resizing problems in recent releases [Owen Taylor]
+* Restore ability to set _set properties to TRUE for 
+  GtkCellRendererText, GtkTextTag [Owen]
+* Cursor drawing improvements [Owen]
+* Win32 fixes [Hans Breuer]
+* Mark various functions as deprecated or private.
+* Misc bug fixes, portability fixes, and cleanups.
+
+Other Contributors: 
+ Vitaly Tishkov, Christian Rose, Frank Belew, Jeff Franks, Sven Neumann,
+ Kristian Rietveld, Vitaly Tishkov, Joshua N. Pritikin, Matt Wilson, 
+ James Henstridge, Detlef Reichl
+
+Overview of Changes in GTK+ 1.3.8
+=================================
+
+* GtkTreeView and GtkTreeModel API cleanups/improvements [Jrb]
+* GtkOptionMenu scrollwheel support [Alex]
+* GtkModule search paths [Owen]
+* Documenatation updates [Havoc,Jrb]
+* Major Gdk cleanup [Owen]
+* Miscellaneous other fixes/cleanups
+
+Other Contributors:
+  Joshua N Pritikin, Padraig O'Briain, Jakub Steiner, Matthias Clasen,
+  Matt Wilson, James Henstridge
+
+Overview of Changes in GTK+ 1.3.7
+=================================
+
+* Many Pixbuf (loader) improvements [Matthias Clasen, Soeren Sandmann]
+* Added publically installed utility gdk-pixbuf-csource to generate
+  inlined pixbufs in C source code [Tim Janik]
+* Optional movement of button children on press [Soeren, Owen Taylor]
+* Interactive searching in GtkTreeView [Kristian Rietveld]
+* Sorting/ordering improvements for GtkTreeView [Kris, Jonathan Blandford]
+* Animation of expander motion for GtkTreeView [Anders Carlsson]
+* Lots of misc GtkTreeView fixes and improvements [Jonathan]
+* New/improved stock icons [Jakub Steiner] 
+* Code and API rework for window resizing [Havoc Pennington]
+* Converted accel groups to GObject [James Henstridge]
+* More property support improvements
+* Add facility for "secondary" buttons in 
+  GtkButtonBox/GtkDialog [Gregory Merchan]
+* Disentangled child visability from MAPPED state [Owen]
+* Plug/Socket improvements and port to the XEMBED protocol [Owen]
+* Added priorities for styles in RC files, 
+  support multiple parse contents [Owen]
+* Made GdkVisual and GdkDevice GObjects [Alexander Larsson]
+* Key binding improvements [Havoc]
+* Added GtkWidget::event-after signal since normal event handling
+  is now aborted as soon as a handler returned TRUE [Tim]
+* Dnd fixes and improved icon support [Owen]
+* Removed GtkPacker widget
+* Fixing missing paired getters/setters [Kris]
+* Nuked remaining GtkArg cruft, implemented container/child properties [Tim]
+* Added window grab groups [Owen]
+* Many frame buffer improvements [Alex]
+* Win32 fixes and improvements [Hans Breuer]
+* Warning fixes [Darin Adler]
+* Miscellaneous bug and API fixes [Matthias et. al]
+
+Other Contributors:
+  Joshua N Pritikin, Hidetoshi Tajima, Manish Singh, ERDI Gergo, Jens Finke,
+  Chema Celorio, Lee Mallabone, Vitaly Tishkov, Sebastian Wilhelmi,
+  Nicola Girardi, Sven Neumann, Padraig O'Briain, Michael Natterer,
+  Suresh Chandrasekharan, Jonas Borgström, Jay Cox, Michael Meeks,
+  Mathias Hasselmann, Peter Williams, Thomas Broyer, Kjartan Maraas,
+  Joel Becker, Jeff Franks, Brian Cameron, Skip Montanaro
+
+Overview of Changes in GTK+ 1.3.6
+=================================
+
+* Properly renders strikethrough text
+* win32 fixes
+* Added "scale" property to GtkTextTag and GtkCellRendererText to do 
+  relative font scaling
+* Added "format_value" signal to GtkScale to reformat value text
+* framebuffer fixes
+* Property support added to lots of widgets
+* Many GtkTreeView new features and API/implementation fixes
+* Lots of new_with_mnemonic() convenience functions
+* Change GtkImageMenuItem API to be more consistent/useful
+* Added lots of new stock items/icons
+* Rewrote GtkRange/GtkScale/GtkScrollbar, includes support for
+  enabling/disabling extra scrollbar stepper arrows in gtkrc so NeXT
+  themes won't need broken hacks
+* Convenience API for GtkRange similar to the one added to GtkSpinButton
+  a while back
+* Make menubar/toolbar work properly with xthickness/ythickness of 1 or 0, 
+  and move some attributes from program settings to user settings.
+  Allows nice 1-pixel-bevel themes.
+* Moved ::focus virtual function from GtkContainer to GtkWidget
+* Plenty of bug fixes
+
+Overview of Changes in GTK+ 1.3.5
+=================================
+
+* New default theme based on Raleigh theme for 1.2.x.
+* Dependency on the ATK library added as a step to
+  providing accessibility-enabling interfaces
+* XEMBED-based GtkPlug/GtkSocket now basically works.
+* Drag and drop of column headers in GtkTreeView
+* GtkColorSelector work: hooks for saving and propagating palette, UI tweaks,
+  and API sanitation
+* Key binding fixes
+* Configurable padding/spacing in a lot of places
+* Invisible text in GtkTextView fixed
+* SHM segments now created with a mode of 0600
+* Bug fixes
+
+Overview of Changes in GTK+ 1.3.4
+=================================
+
+* Win32 fixes
+* GtkTreeView improvements and fixes
+* Fix glib-2.0.m4
+* Miscellaneous bug fixes
+
+Overview of Changes in GTK+ 1.3.3
+=================================
+
+[ 5600 lines of ChangeLog ]
+
+* API cleanups
+* Win32 work (Tor, Hans Breuer)
+* Focus improvements (Owen)
+* Frame buffer improvements (Alex)
+* Work on GtkTextView (Havoc)
+* Much work on GtkTreeView (Jonathan)
+* Selectable labels (Havoc)
+* Converted many arguments to properties (Lee Mallabone, John Margaglione)
+* Add exact regions to GdkExposeEvent, propagate it. (Alex)
+* Added ability to have resize grips in status bars (etc.) using
+  _NET_WM_MOVERESIZE protocol. (Havoc)
+* Added mnemnonic mechanism to make setting underline accelerators
+  much easier. (Alex)
+* Add per-style property mechanism to allow themes to change 
+  geometry parameters. (Tim)
+* Added global settings mechanisms for settings such as double-click
+  time. (Tim, Owen)
+* Various support functions for new and old WM properties (Havoc, Alex)
+* Add TRUE-stops-returns for boolean-returning signals (Ron Steinke)
+
+Overview of Changes in GTK+ 1.3.2
+=================================
+
+GTK Core:
+
+* New stock-icon and stock-item system. Use themeable pixbufs in
+  dialogs, buttons, etc. [Havoc]
+* Theme engines reworked to use derivation and new object system. [Owen]
+* Added GtkClipboard object for simple selection handling. [Owen]
+* Make GtkEditable an interface, move implementation to GtkOldEditable for
+  compat. [Owen]
+* Better handling of default directionality. [Robert]
+* Use GSignal as backend for GtkSignal and other GObject stuff. [Tim]
+* Move theme engines to GTypePlugin. [Owen]
+
+GDK:
+
+* Beginning of implementation of client parts of new window manager spec. [Owen]
+* Make gdk_drawable_get_image() work with backing store. [Havoc]
+
+Widgets:
+
+* New text widget [Havoc]
+  - Adjustable tab handling.
+  - Ability to have scrolling side areas in new text widget for tabs/line numbers.
+  - Many cleanups and small improvements.
+* Improvements to submenu navigation [Nils Barth/David Santiago] and
+  scrolling menus. [Alex]
+* Simplification of progress bar API. [Havoc]
+* Make GtkImage a generic image-display widget. [Havoc]
+* New GtkTreeView tree widget. Model/view architecture, flexible rendering,
+  large datasets, etc. [Jonathan]
+* New GtkMessageBox widget for message display. [Havoc]
+* Allow labels to have contents set from XML-like markup language. [Havoc]
+* Make dialogs derive from GtkDialog and use stock buttons. [Havoc]
+
+Internationalization:
+
+* Proper character set conversion for clipboard/selection. [Owen]
+* New input method system via loadable modules; support on-the-spot
+  preedit in GtkEntry and new text widget; allow switching input methods
+  on the fly; include modules for XIM and demo Cyrillic-transliteration 
+  module. [Owen]
+* VIQR, Thai, and Inuktitut input methods. [Robert]
+* Convert po files to UTF-8. [Robert]
+
+gdk-pixbuf:
+
+* Full-alpha compositing for gdk-pixbuf on drawable. [Havoc]
+* Add simple saving to gdk-pixbuf. [David Welton/Havoc]
+* Add improved error handling with GError to gdk-pixbuf. [Havoc]
+
+Ports:
+
+* Much work on Win32 Port. [Tor/Hans]
+* Much work on Linux-FB Port. [Elliot/Alex]
+
+Misc:
+
+* Start of new gtk-demo demo program. [Owen/Jonathan]
+* Bug fixes and more bug fixes.
+
+
+Overview of Changes in GTK+ 1.3.1:
+
+* GTK+ now uses the Pango library for text manipulation. All
+  strings in GTK+ now are in Unicode, languages written
+  from right-to-left, and complex-text languages are now supported.
+* The gdk-pixbuf library for image loading and manipulation is 
+  has been integrated with GTK+.
+* The GTK+ object system has mostly been moved to GLib, separating
+  it from the GUI code. Many significant enhancements have been
+  made as part of this.
+* A new text widget is now included. This started as a port
+  of the Tk text widget, and includes such features of the Tk
+  text widget as tags, marks, and unicode text support. It
+  has been enhanced to support model-view operation and the
+  full power of Pango.
+* The GDK library has been extensively revised to support multiple
+  windowing systems. The only fully functional backend in 1.3.1
+  is the X11 backend, however, ports to Win32, Linux-framebuffer,
+  Nano-X, BeOS, and MacOS exist in various states of completion,
+  and at least some of these will be finished and integrated in 
+  before the final GTK+-2.0 release.
+* 32-bit coordinates are now supported throughout GDK and GTK+
+  (they are emulated where not supported by the windowing system.)
+* Many minor bug fixes and enhancements. Incompatible changes
+  are documented in docs/Changes-2.0.txt
+
+Overview of Changes in GTK+ 1.2.8:
+
+* GNU Make 3.79 bug workaround
+* FAQ and tutorial updates and improvements
+* Miscellaneous bug fixes: CList, Calendar, rc-files, FontSelection
+
+Overview of Changes in GTK+ 1.2.7:
+
+* More header cleanups.
+* Fixed activation bug for insensitive widgets.
+* Locale fixes to RC file parsing code.
+* Miscellaneous bugfixes for Item Factory, CList, CTree, X Selections,
+  HScale, VScale, Pixmap, Viewport, OptionMenu, Entry and Notebook.
+* Upgrade to libtool 1.3.4.
+
+Overview of Changes in GTK+ 1.2.6:
+
+* container queue_resize fixes
+* gtk[vh]scale: minor fixups
+* rename idle to idle_id in testgtk to avoid conflicts with 
+  broken libs
+* More consistent naming of gtkrc files
+* Added language support: ro, uk
+
+Overview of Changes in GTK+ 1.2.5:
+
+* more GtkCTree and GtkWindow bug fixes.
+* more redraw/resize queue fixes, better expose event
+  discarding code.
+* more miscellaneous bugs fixed
+* new configure.in option --disable-rebuilds to completely disable
+  rebuilds of autogenerated sources.
+* check for 5.002 now, to avoid failing autogeneration build rules due
+  to old perl versions.
+* fonts (and fontsets) are cached now.
+* more autogeneration make rules and dependency fixups, we should be
+  save with autogeneration up to make -j12 now ;)
+* new window position GTK_WIN_POS_CENTER_ALWAYS, which will recenter the
+  GtkWindow on every size change.
+* major rework of window manager hints handling code, fixed a bunch of
+  races with the new resizing code.
+* the new wm hints and resizing code is absolutely perfect and bug free now,
+  it only lacks testing ;)
+* fixed up various rc style memory problems.
+* gtk_widget_modify_style() now properly changes the style of realized widgets
+  and references the style passed into it. if people worked around this bug,
+  this will introduce a slight memory leak in their code.
+  The code should typically look like:
+            GtkRcStyle *rc_style = gtk_rc_style_new ();
+            [...]
+            gtk_widget_modify_style (widget, rc_style);
+            gtk_rc_style_unref (rc_style);
+* fix problems with positioning menus offscreen.
+* GtkText fixes for some crashes and drawing errors.
+* Better handling for unexpected window destroys in GDK and GTK+.
+  This should make it possible to use a GtkPlug and catch the
+  case where its parent socket is randomly killed.
+* FAQ updates.
+* FileSelection i18n patches, RadioButton fixups.
+* many translation improvements.
+* miscellaneous other bugs fixed.
+
+Overview of Changes in GTK+ 1.2.4:
+
+* DnD improvements (drags can be canceled with Esc now).
+* suppressed configure event reordering in Gdk.
+* rewrite of Gtk's configure event handling.
+* major improvements for the object argument system (Elena Devdariani).
+* major bugfixes for threading, GtkNotebook, GtkItemFactory, GtkCList and
+  GtkCTree.
+* tutorial/FAQ updates, new file generation.txt on autogenerated sources.
+* configure's --with-glib= is "officially" unsupported.
+* upgrade to libtool 1.3.3.
+* various buglets fixed.
+
+Overview of Changes in GTK+ 1.2.3:
+
+* Upgrade to libtool 1.3
+* Check for dgettext (for systems with old versions of GNU Gettext)
+* Many bug fixes (see ChangeLog for details)
+
+Overview of Changes in GTK+ 1.2.2:
+
+* Improved Dnd behaviour with Motif applications.
+* Bug fixes for the Gtk selection code.
+* Minor bug fixes to the Gdk Atom cache and Dnd code (with --display option).
+* Bug fixes and leak plugs for the Gdk IM code.
+* Added gtk_object_get() facility to retrieve object arguments easily.
+  The var args list expects ("arg-name", &value) pairs.
+* Fixed mapping for GdkInputCondition<->GIOCondition, this should fix
+  problems where closed pipes were no longer signaling GDK_INPUT_READ on
+  systems with a native poll().
+* Some cleanups to GtkLabel's memory allocation code (shouldn't leak memory
+  anymore).
+* We don't attempt to lookup xpm color "None" anymore, this should prevent
+  eXodus (commercial X windows server) from popping up a color dialog every
+  time a transparent pixmap is created.
+* Fixed bug where Gtk timeout/idle handlers would execute without the global
+  Gdk lock being held.
+* Other minor bug fixes.
+
+Overview of Changes in GTK+ 1.2.1:
+
+* Many Bug fixes have been applied to the menu and accelerator code.
+* GtkItemFactory can "adopt" foreign menu items now and manage their
+  accelerator installation. This is often required to get GtkItemFactory
+  like accelerator propagation between different windows with the same
+  menu hierarchy and for centralized parsing and saving of accelerators.
+* GtkCList/GtkCTree buttons should always display correctly now.
+* Miscellaneous other bug fixes.
+
+What's New in GTK+ 1.2.0 (since 1.0.x):
+
+* New widgets: GtkFontSelector, GtkPacker, GtkItemFactory, GtkCTree,
+  GtkInvisible, GtkCalendar, GtkLayout, GtkPlug, GtkSocket
+* Many new features and robustness for existing widgets
+* Theme support
+* New DND implementation
+* Internationalization of standard dialogs
+* New key binding system
+* Tearoff menus and menu accelerators
+* Wide character support for entry and text
+* Resizing code has been overhauled
+* Queued redraws of partial areas
+* Far better support for object arguments
+* Speed optimizations
+* Runtime loading of dynamic modules
+* Support for GLib log domains
+* Tutorial improvements
+* A bug fix or two
+
+Overview of Changes in GTK+ 1.1.16:
+
+* Major fixes and improvements for handlebox
+* A change to the way widget->requisition works. Now,
+  widget->requisition is always what the widget requested,
+  unmodified by the usize. See Changes-1.2.txt for details.
+  This correct various bugs with gtk_widget_set_usize().
+* Fixes for XIM on X11R5 systems
+* Don't allow cut-and-paste of text in password-style entries
+* --enable-debug is now on by default for the development release.
+  (When compiling for "production", use --enable-debug=minimum)
+* Handle systems where Helvetica is not present more gracefully
+* Fixes for memory leaks
+* CList and CTree fixes
+* Bug fixes for drawing problems. 
+* Miscellaneous bug fixes to GtkLabel, GtkCList, GtkCTree,
+  GtkColorsel, Focusing, DND
+* Tutorial improvements
+
+Overview of Changes in GTK+ 1.1.15:
+
+* Tutorial Updates
+* Added --libs gthread to gtk-config 
+* Bug fixes
+
+What is new in GTK+ 1.1.14:
+
+* Additions to docs/Changes-1.2.txt
+* Just warn when loading theme engine fails
+* CLAMP GtkScale digits to a meaningful range
+* GTK_LOCALDIR is now defined in a better fashion
+* New functions (feature freeze, we know...):
+    gtk_menu_set_title()
+    gtk_toggle_button_get_active()
+* Some locale fixups in gtkrc code
+* Fixes to make gtk_radio_button_set_group() keep only
+  one radio button in the group active
+* Foreign windows are now always treated as viewable; this fixes
+  a problem where updating didn't occur properly in GtkPlug
+* DND fixes for 64 bit architectures, and for specifying operations 
+  with modifier keys.
+* Major revisions to GtkLayout: avoid having to create window
+  for NO_WINDOW children, adjust allocations of children as 
+  scrolled so queued draws work, and a resize is queued instead
+  of allocating directly in a put() or move()
+
+What is new in GTK+ 1.1.13:
+
+* Dnd and selection bug fixes and memory purification.
+* Widget sensitivity fixups.
+* Tooltips windows are now named "gtk-tooltips" so rc file rules
+  can match tooltips windows. Fixed interaction of tooltips and NO_WINDOW
+  widgets.
+* Spin buttons now update their values upon value retrieval.
+* Overhaul of the resizing vs. redrawing logic to reduce redrawing needs
+  a lot. Gtk makes full use of the draw_area coalescing code now, which
+  got minorly improved as well.
+* Containers map their Gdk windows after their children now to reduce
+  expose event generation.
+* Gdk event queue fixups, this solves the double-click problems people were
+  recently having.
+* Account for the fact that GSource's are only properly reentrant from
+  within dispatch(), thus we don't do Gdk event processing from within
+  check() or prepare() anymore.
+* Rc files feature a bg_pixmap value of "<none>" now.
+* Improved session management support in Gdk.  
+* Automatic disabling of NLS if no gettext is found should work now.
+* Removed deprecated functions, docs/Changes-1.2.txt gives an overview.
+* Gtk+ development now requires GNU autoconf 2.13, GNU automake 1.4
+  and GNU libtool 1.2d.
+* More bug fixes all over the place.
+
+What is new in GTK+ 1.1.12:
+
+* Korean translation added
+* Fixed memory leaks
+* A few other bug fixes
+
+What is new in GTK+ 1.1.11:
+
+* Dutch, Japanese, Swedish, Polish, and Norwegian translations
+* Removed deprecated _interp variants: gtk_container_foreach_interp, 
+  gtk_idle_add_interp, gtk_timeout_add_interp, gtk_signal_connect_interp
+* Lots of cast corrections
+* Many fixes 
+
+What is new in GTK+ 1.1.9:
+
+* Check for broken glibc 2.0 mb functions and avoid them
+* Label and Entry display fixes 
+* Move main thread back to GDK, for locking when translating events
+* Bug fixes
+
+What is new in GTK+ 1.1.8:
+
+* Added support for gettext and the localization of the standard
+  dialogs.
+* Added line-wrapping for the label, and JUSTIFY_FILL
+* Support reordering via drag and drop in  CList and CTree.
+* Replaced GtkDrawWindow widget with a GTK_USER_DRAW flag
+* Extended gtkpaned API to support minimum sizes and proportional
+  resizing.
+* Changed the handling of shared memory segments so as to 
+  remove the need for GTK+ to set up signal handlers.
+* Re-implemented event loop in terms of the event loop
+  that has been added to GLib 1.1.8
+* Added 'grab_focus' signal to allow keyboard accelerators
+  for entries.
+* Load locale specific RC files if present.
+* Bug fixes.
+
+What is new in GTK+ 1.1.7:
+
+* Fixed memory mis-allocation in default files code
+* Various event handling fixes
+* Wide character support for entry and text
+* Destroy widgets _after_ propagating unrealize signals through 
+  widget hierarchy
+* Only build XIM-support if available
+* Tutorial and examples updates
+* Added gtk_drag_source_unset()
+
+What is new in GTK+ 1.1.6:
+
+* The signal system now features emission hooks with special semantics,
+  refer to the ChangeLog for this.
+* Minor? speedups and memory reductions to the emission handling of the
+  signal system.
+* _interp() function variants are deprecated now. the corresponding *_full()
+  variants are provided for a long time now.
+* Dnd abort timeout increased to 10 minutes.
+* GtkScrolledWindow inherits from GtkBin now.
+* GTK_POLICY_NEVER is implemented for scrolled windows now.
+* Lots of API clean ups.
+* Incremental freezing abilities.
+* Integrated widgets from the GNOME tree: GtkLayout, GtkPlug and GtkSocket.
+* New window functions for transient relationship, default size, and 
+  geometry hints
+* Default rc files are now read in (<sysconfdir/etc/gtkrc and ~/.gtkrc)
+  GTK_RC_FILES environment variable and functions are provided to configure
+  this behavior
+* Read doc/Changes-1.2.txt to properly adapt your code.
+* Bug Fixes.
+
+What is new in GTK+ 1.1.5:
+
+* Theme integration
+* Widget style modification is now handled through GtkRcStyles
+* GtkPixmaps now grey out pixmaps when insensitive
+* Notebook enhancements
+* Shadow configurability for menubars and handleboxes
+* DND enhancements
+* gtkfilesel now supports automounters better
+* Implementation of expose compression
+* Queued redraws of partial areas
+* Scrolledwindow (+Viewport) source incompatibilities, children that are added
+  to a scrolled window don't get an automatic viewport anymore. a convenience
+  function gtk_scrolled_window_add_with_viewport() is supplied for this task
+* Deprecated functions will now issue a message, informing the programmer about
+  the use of this function. These functions will get removed in future versions
+* Non-functional functions got removed entirely
+* gtk_widget_new() and gtk_object_new() will now auto-construct new objects.
+  A new function gtk_object_default_construct() is provided now which should
+  be called after every gtk_type_new() to perform the auto-construction
+* Improved argument support of several widgets
+* Bug Fixes
+
+What is new in GTK+ 1.1.3:
+
+* GtkCList/GtkCTree now have the ability to:
+    - hide/show individual columns
+    - disable/enable column resizing
+    - set min and max for column widths
+    - set expander style of the ctree
+    - set/get row and cell styles
+    - set spacing between tree expander and cell contents in ctree
+    - toggle auto_resize for columns
+* Must enhanced DND support, removed old DND code
+* Idle functions are now implemented via GHook, giving a slight speed
+  improvement
+* An environment variable GTK_MODULES which takes a colon separated
+  list of module names GTK+ will now automatically load at gtk_init() startup
+* GtkFontSel now has support for an extra 'base' filter
+* New function gdk_window_set_root_origin to get the real geometry taking
+  into account window manager offsets
+* New function gtk_text_set_line_wrap to toggle line wrapping
+* New function gtk_widget_add_events which safely adds additional
+  events to a widget's event mask
+* New function gdk_event_get_time to get the timestamp from a generic
+  event
+* New widget GtkCalendar
+* New widget GtkInvisible - InputOnly offscreen windows used for reliable
+  pointer grabs and selection handling in DND code
+* New functions gtk_object_remove_no_notify[_by_id] to remove a certain
+  data portion without invocation of its destroy notifier 
+* gtk_spin_button_construct is now deprecated, use gtk_spin_button_configure
+  instead 
+* gtk_clist_set_border is now deprecated, use gtk_clist_set_shadow_type 
+  instead
+* Removed functions gtk_object_set_data_destroy[_by_id] 
+* Documentation additions/updates 
+* HTML and plain text files are now included in the distribution
+* Bug fixes, typeness corrections, and general fixups
+
+What is new in GTK+ 1.1.2:
+
+* Gtk+ is now featuring runtime loading of dynamic modules via the
+  --gtk-modules= command line switch. such modules have to export a
+  G_MODULE_EXPORT void gtk_module_init (gint *argc, gchar ***argv);
+  function which will be invoked to initialize the module. since such
+  modules may create new widget types, they are always resident.
+* The tutorial has been updated again.
+* Changes to menus including tearoff menus and accelerators.
+* Better support for modal dialogs.
+* Removed CAN_FOCUS by default from scrollbars and button children of toolbar.
+* More improvements and fixes for GtkCList and GtkCTree (i.e. row sorting).
+* GtkCTree rows can be unselectable now.
+* The GtkCTree API has undergone major renames (see ChangeLog entry from Lars
+  Hamann on Tue Aug 18 00:29:13 1998).
+* A bunch of varargs functions changed to get va_lists working on systems that
+  implement va_lists as arrays.
+* Improvements to the gdkrgb code.
+* Improvements to Gdk color handling so we greatly reduce server traffic and
+  don't leak colors anymore.
+* Improved internal widget tree iterators (the GtkContainer::foreach signal
+  vanished because of this).
+* Option menus can have the keyboard focus now.
+* More fixups to the text widget.
+* GtkFileSelection should behave much more nicely in combination with AFS now.
+* Support for label underlining.
+* Support for GLib 1.1.3 log domains.
+* Documentation improvements.
+* Configuration fixes on various platforms.
+* Miscellaneous fixes to XInput support.
+* Build with shared library dependencies on Linux
+* Fix for a major bug in the type systems memory allocation code that could
+  cause random crashes.
+* Libtool update to version 1.2b.
+* Lots of bugfixes and cleanups again ;)
+
+
+What is new in GTK+ 1.1.1:
+
+* Tutorial updates and additions.
+* Key binding support for GtkListItems and GtkList.
+* Extended selection mode and autoscrolling for GtkLists.
+* A GtkCtree now operates on GtkCTreeNode* structures rather than GList*.
+* GtkCTreeNodes can now be created from GNode trees.
+* Bug fixes for GtkNotebook, GtkCList, GtkCombo and GdkWindow reparentation.
+
+
+What is new in GTK+ 1.1.0:
+
+* New widget GtkFontSelector.
+* New featureful progress bar.
+* New container widget GtkPacker.
+* New object GtkItemFactory, GtkMenuFactory is deprecated.
+* New key binding system, configurable via rcfiles, similar to styles.
+* New widget GtkCTree with drag selections and keyboard movement and
+  and horizontal scrolling. Features also implemented for GtkCList.
+* Significant speedups to widget creation and destruction through caching
+  colormap and visual queries to the XServer.
+* Speedups for type creation and especially gtk_type_is_a() checks.
+* Speedups in signal lookup, creation and emissions and connection handling.
+* Minor speedups with object data allocation and destruction.
+* Additions to the signal handling API (e.g. *_emitv).
+* Support for rc-file reparsing.
+* Resizing logic is now implemented on container widget basis, rather than
+  for toplevel GtkWindows only.
+* Buttons support relief styles now.
+* Some widgets are now allocated through memchunks to behave more memory wise.
+* Newly included file gtkfeatures.h which defines compatibility macros to
+  test for certain API features upon program compilation.
+* Child arguments support for container widgets.
+* Far better support for object arguments, revamp of the underlying
+  mechanism for speed and reusability. Child/object arguments don't
+  need to be preceded by the "GtkType::" portion anymore.
+* Removed GtkAcceleratorTable in favour of GtkAccelGroup, accelerator display
+  is now performed by a new widget GtkAccelLabel.
+* Overhaul of the resizing code. Resizing behaviour can now be specified
+  on GtkContainer basis, so the underlying algorithm isn't only available
+  for GtkWindows.
+* GtkTables are now fully resizable.
+* The GtkType system now supports an additional base class initialization
+  function.
+* GtkStyles and key bindings can now be looked up depending on the base
+  types of a widget, through a new keyword `class' in rc files.
+* GtkButton derives from GtkBin (finally).  
+* More descriptive error messages on rc parsing.  
+* Runtime information is available to query enum/flag definition values.
+* Upgrade to libtool-1.2
+* Legions of bug fixes, memory leaks, segfaults, of-by-something errors...
+  including those that already went into the 1.0.x branch.
+* A big bunch of features and cosmetic fixups that just got lost in
+  the masses of changesonfigure problem when cross-compiling

README.md

@@ -1,6 +1,8 @@
 GTK+ — The GTK toolkit
 ======================
 
+[![Build Status](https://gitlab.gnome.org/GNOME/gtk/badges/master/build.svg)](https://gitlab.gnome.org/GNOME/gtk/pipelines)
+
 General information
 -------------------
 
@@ -34,8 +36,8 @@ Building and installing
 
 In order to build GTK+ you will need:
 
-  - a C99 compatible compiler
-  - Python 3
+  - [a C99 compatible compiler](https://wiki.gnome.org/Projects/GLib/CompilerRequirements)
+  - [Python 3](https://www.python.org/)
   - [Meson](http://mesonbuild.com)
   - [Ninja](https://ninja-build.org)
 
@@ -59,10 +61,10 @@ If you are building the X11 backend, you will also need:
     - xrender
     - xi
     - xext
-    - xfixes (optional)
-    - xcursor (optional)
-    - xdamage (optional)
-    - xcomposite (optional)
+    - xfixes
+    - xcursor
+    - xdamage
+    - xcomposite
   - [atk-bridge-2.0](https://download.gnome.org/sources/at-spi2-atk)
 
 If you are building the Wayland backend, you will also need:
@@ -105,8 +107,7 @@ Or [online](https://developer.gnome.org/gtk4/stable/gtk-building.html)
 How to report bugs
 ------------------
 
-Bugs should be reported to the GNOME [bug tracking system](https://bugzilla.gnome.org/enter_bug.cgi?product=gtk%2b).
-You will need an account for yourself.
+Bugs should be reported on the [issues page](https://gitlab.gnome.org/GNOME/gtk/issues/new).
 
 In the bug report please include:
 
@@ -121,11 +122,12 @@ In the bug report please include:
 
 * How to reproduce the bug.
 
-  If you can reproduce it with one of the test programs that are built
-  in the tests/ subdirectory, that will be most convenient.  Otherwise,
-  please include a short test program that exhibits the behavior.
-  As a last resort, you can also provide a pointer to a larger piece
-  of software that can be downloaded.
+  If you can reproduce it with one of the demo applications that are
+  built in the demos/ subdirectory, on one of the test programs that
+  are built in the tests/ subdirectory, that will be most convenient.
+  Otherwise, please include a short test program that exhibits the
+  behavior. As a last resort, you can also provide a pointer to a
+  larger piece of software that can be downloaded.
 
 * If the bug was a crash, the exact text that was printed out
   when the crash occurred.
@@ -133,24 +135,6 @@ In the bug report please include:
 * Further information such as stack traces may be useful, but
   is not necessary.
 
-
-Contributing
-------------
-
-Patches should also be submitted to the bug tracking system. If the patch
-fixes an existing bug, add the patch as an attachment to that bug report;
-otherwise, enter a new bug report that describes the patch, and attach the
-patch to that bug report.
-
-Patches should be in Git-formatted form. You should use `git format-patch`
-to generate them. We recommend using [git-bz](http://git.fishsoup.net/man/git-bz.html).
-
-For more information on the recommended workflow, please read
-[this wiki page](https://wiki.gnome.org/Git/WorkingWithPatches).
-
-Please, follow the `CODING_STYLE` document in order to conform to GTK+'s
-coding style when submitting a code contribution.
-
 Release notes
 -------------
 

build-aux/flatpak/org.gtk.Demo.json

@@ -0,0 +1,59 @@
+{
+    "app-id": "org.gtk.Demo",
+    "runtime": "org.gnome.Platform",
+    "runtime-version": "master",
+    "sdk": "org.gnome.Sdk",
+    "command": "gtk4-demo",
+    "tags": ["devel", "development", "nightly"],
+    "rename-desktop-file": "gtk4-demo.desktop",
+    "rename-icon": "gtk4-demo",
+    "desktop-file-name-prefix": "(Development) ",
+    "finish-args": [
+        "--device=dri",
+        "--share=ipc",
+        "--socket=x11",
+        "--socket=wayland",
+        "--talk-name=org.gtk.vfs", "--talk-name=org.gtk.vfs.*",
+        "--talk-name=ca.desrt.conf", "--env=DCONF_USER_CONFIG_DIR=.config/dconf"
+    ],
+    "cleanup": [
+        "/include",
+        "/lib/pkgconfig", "/share/pkgconfig",
+        "/share/aclocal",
+        "/man", "/share/man", "/share/gtk-doc",
+        "*.la", ".a",
+        "/lib/girepository-1.0",
+        "/share/gir-1.0",
+        "/share/doc"
+    ],
+    "modules": [
+        {
+            "name": "graphene",
+            "buildsystem": "meson",
+            "builddir": true,
+            "config-opts": [
+                "--libdir=/app/lib"
+            ],
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://github.com/ebassi/graphene.git"
+                }
+            ]
+        },
+        {
+            "name": "gtk",
+            "buildsystem": "meson",
+            "builddir": true,
+            "config-opts": [
+                "--libdir=/app/lib"
+            ],
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://gitlab.gnome.org/GNOME/gtk.git"
+                }
+            ]
+        }
+    ]
+}

build-aux/flatpak/org.gtk.WidgetFactory.json

@@ -0,0 +1,59 @@
+{
+    "app-id": "org.gtk.WidgetFactory",
+    "runtime": "org.gnome.Platform",
+    "runtime-version": "master",
+    "sdk": "org.gnome.Sdk",
+    "command": "gtk4-widget-factory",
+    "tags": ["devel", "development", "nightly"],
+    "rename-desktop-file": "gtk4-widget-factory.desktop",
+    "rename-icon": "gtk4-widget-factory",
+    "desktop-file-name-prefix": "(Development) ",
+    "finish-args": [
+        "--device=dri",
+        "--share=ipc",
+        "--socket=x11",
+        "--socket=wayland",
+        "--talk-name=org.gtk.vfs", "--talk-name=org.gtk.vfs.*",
+        "--talk-name=ca.desrt.conf", "--env=DCONF_USER_CONFIG_DIR=.config/dconf"
+    ],
+    "cleanup": [
+        "/include",
+        "/lib/pkgconfig", "/share/pkgconfig",
+        "/share/aclocal",
+        "/man", "/share/man", "/share/gtk-doc",
+        "*.la", ".a",
+        "/lib/girepository-1.0",
+        "/share/gir-1.0",
+        "/share/doc"
+    ],
+    "modules": [
+        {
+            "name": "graphene",
+            "buildsystem": "meson",
+            "builddir": true,
+            "config-opts": [
+                "--libdir=/app/lib"
+            ],
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://github.com/ebassi/graphene.git"
+                }
+            ]
+        },
+        {
+            "name": "gtk",
+            "buildsystem": "meson",
+            "builddir": true,
+            "config-opts": [
+                "--libdir=/app/lib"
+            ],
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://gitlab.gnome.org/GNOME/gtk.git"
+                }
+            ]
+        }
+    ]
+}

build-aux/meson/post-install.sh

@@ -16,6 +16,11 @@ if [ -z "$DESTDIR" ]; then
   echo Updating icon cache...
   gtk-update-icon-cache -q -t -f ${gtk_datadir}/icons/hicolor
 
-  echo Updating input method modules cache...
-  gtk4-query-immodules > ${gtk_libdir}/gtk-${gtk_api_version}/${gtk_abi_version}/immodules.cache
+  echo Updating module cache for print backends...
+  mkdir -p ${gtk_libdir}/gtk-4.0/4.0.0/printbackends
+  gio-querymodules ${gtk_libdir}/gtk-4.0/4.0.0/printbackends
+
+  echo Updating module cache for input methods...
+  mkdir -p ${gtk_libdir}/gtk-4.0/4.0.0/immodules
+  gio-querymodules ${gtk_libdir}/gtk-4.0/4.0.0/immodules
 fi

config.h.meson

@@ -41,6 +41,9 @@
 /* Define to 1 if you have the <dlfcn.h> header file. */
 #mesondefine HAVE_DLFCN_H
 
+/* Have the ffmpeg library */
+#mesondefine HAVE_FFMPEG
+
 /* Define to 1 if you have the <ftw.h> header file. */
 #mesondefine HAVE_FTW_H
 
@@ -53,6 +56,9 @@
 /* Define if gio-unix is available */
 #mesondefine HAVE_GIO_UNIX
 
+/* Define if GStreamer support is available */
+#mesondefine HAVE_GSTREAMER
+
 /* Define to 1 if you have the `httpGetAuthString' function. */
 #mesondefine HAVE_HTTPGETAUTHSTRING
 
@@ -288,9 +294,10 @@
 
 #mesondefine GTK_LIBDIR
 
-#mesondefine GTK_PRINT_BACKENDS
 #mesondefine GTK_PRINT_BACKENDS
 
 #mesondefine HAVE_HARFBUZZ
 
 #mesondefine HAVE_PANGOFT
+
+#mesondefine ISO_CODES_PREFIX

demos/gtk-demo/application.c

@@ -470,14 +470,14 @@ demo_application_window_size_allocate (GtkWidget           *widget,
 }
 
 static void
-window_state_changed (GtkWidget *widget)
+surface_state_changed (GtkWidget *widget)
 {
   DemoApplicationWindow *window = (DemoApplicationWindow *)widget;
-  GdkWindowState new_state;
+  GdkSurfaceState new_state;
 
-  new_state = gdk_window_get_state (gtk_widget_get_window (widget));
-  window->maximized = (new_state & GDK_WINDOW_STATE_MAXIMIZED) != 0;
-  window->fullscreen = (new_state & GDK_WINDOW_STATE_FULLSCREEN) != 0;
+  new_state = gdk_surface_get_state (gtk_widget_get_surface (widget));
+  window->maximized = (new_state & GDK_SURFACE_STATE_MAXIMIZED) != 0;
+  window->fullscreen = (new_state & GDK_SURFACE_STATE_FULLSCREEN) != 0;
 }
 
 static void
@@ -485,15 +485,15 @@ demo_application_window_realize (GtkWidget *widget)
 {
   GTK_WIDGET_CLASS (demo_application_window_parent_class)->realize (widget);
 
-  g_signal_connect_swapped (gtk_widget_get_window (widget), "notify::state",
-                            G_CALLBACK (window_state_changed), widget);
+  g_signal_connect_swapped (gtk_widget_get_surface (widget), "notify::state",
+                            G_CALLBACK (surface_state_changed), widget);
 }
 
 static void
 demo_application_window_unrealize (GtkWidget *widget)
 {
-  g_signal_handlers_disconnect_by_func (gtk_widget_get_window (widget),
-                                        window_state_changed, widget);
+  g_signal_handlers_disconnect_by_func (gtk_widget_get_surface (widget),
+                                        surface_state_changed, widget);
 
   GTK_WIDGET_CLASS (demo_application_window_parent_class)->unrealize (widget);
 }

demos/gtk-demo/application.ui

@@ -7,35 +7,29 @@
     <property name="icon-name">document-open</property>
     <child>
       <object class="GtkGrid">
-        <property name="visible">1</property>
         <child>
           <object class="GtkToolbar">
-            <property name="visible">1</property>
             <property name="hexpand">1</property>
             <style>
               <class name="primary-toolbar"/>
             </style>
             <child>
               <object class="GtkMenuToolButton" id="menutool">
-                <property name="visible">1</property>
                 <property name="icon-name">document-open</property>
               </object>
             </child>
             <child>
               <object class="GtkToolButton">
-                <property name="visible">1</property>
                 <property name="icon-name">application-exit</property>
                 <property name="action-name">app.quit</property>
               </object>
             </child>
             <child>
               <object class="GtkSeparatorToolItem">
-                <property name="visible">1</property>
               </object>
             </child>
             <child>
               <object class="GtkToolButton">
-                <property name="visible">1</property>
                 <property name="icon-name">applications-other</property>
                 <property name="action-name">win.logo</property>
               </object>
@@ -54,7 +48,6 @@
               <object class="GtkBox" id="content_area">
                 <child>
                   <object class="GtkLabel" id="message">
-                    <property name="visible">1</property>
                     <property name="hexpand">1</property>
                   </object>
                 </child>
@@ -64,10 +57,9 @@
               <object class="GtkBox">
                 <child>
                   <object class="GtkButton">
-                    <property name="visible">1</property>
                     <property name="valign">center</property>
                     <property name="label" translatable="yes">_OK</property>
-                    <property name="use_underline">1</property>
+                    <property name="use-underline">1</property>
                     <signal name="clicked" handler="clicked_cb"/>
                   </object>
                 </child>
@@ -81,11 +73,9 @@
         </child>
         <child>
           <object class="GtkScrolledWindow">
-            <property name="visible">1</property>
             <property name="shadow-type">in</property>
             <child>
               <object class="GtkTextView">
-                <property name="visible">1</property>
                 <property name="hexpand">1</property>
                 <property name="vexpand">1</property>
                 <property name="buffer">buffer</property>
@@ -100,7 +90,6 @@
         <child>
           <object class="GtkStatusbar" id="status">
             <property name="hexpand">1</property>
-            <property name="visible">1</property>
           </object>
           <packing>
             <property name="left-attach">0</property>

demos/gtk-demo/blendmodes.ui

@@ -2,21 +2,16 @@
 <interface>
   <requires lib="gtk+" version="3.20"/>
   <object class="GtkWindow" id="window">
-    <property name="can_focus">False</property>
-    <property name="resizable">False</property>
+    <property name="resizable">0</property>
     <property name="title">CSS Blend Modes</property>
-    <property name="default_width">400</property>
-    <property name="default_height">300</property>
+    <property name="default-width">400</property>
+    <property name="default-height">300</property>
     <child>
       <object class="GtkGrid">
-        <property name="visible">True</property>
-        <property name="can_focus">False</property>
-        <property name="row_spacing">12</property>
-        <property name="column_spacing">12</property>
+        <property name="row-spacing">12</property>
+        <property name="column-spacing">12</property>
         <child>
           <object class="GtkLabel">
-            <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="label" translatable="yes">Blend mode:</property>
             <property name="xalign">0</property>
             <style>
@@ -24,128 +19,108 @@
             </style>
           </object>
           <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">0</property>
           </packing>
         </child>
         <child>
           <object class="GtkScrolledWindow" id="scrolledwindow">
-            <property name="visible">True</property>
-            <property name="can_focus">True</property>
-            <property name="vexpand">True</property>
-            <property name="shadow_type">in</property>
-            <property name="min_content_width">150</property>
+            <property name="can-focus">1</property>
+            <property name="vexpand">1</property>
+            <property name="shadow-type">in</property>
+            <property name="min-content-width">150</property>
           </object>
           <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">1</property>
           </packing>
         </child>
         <child>
           <object class="GtkStackSwitcher">
-            <property name="visible">True</property>
-            <property name="can_focus">False</property>
             <property name="halign">center</property>
-            <property name="hexpand">True</property>
+            <property name="hexpand">1</property>
             <property name="stack">stack</property>
           </object>
           <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">0</property>
           </packing>
         </child>
         <child>
           <object class="GtkStack" id="stack">
-            <property name="visible">True</property>
-            <property name="can_focus">False</property>
-            <property name="hexpand">True</property>
-            <property name="vexpand">True</property>
-            <property name="hhomogeneous">False</property>
-            <property name="vhomogeneous">False</property>
-            <property name="transition_type">crossfade</property>
+            <property name="hexpand">1</property>
+            <property name="vexpand">1</property>
+            <property name="hhomogeneous">0</property>
+            <property name="vhomogeneous">0</property>
+            <property name="transition-type">crossfade</property>
             <child>
               <object class="GtkGrid">
-                <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="halign">center</property>
                 <property name="valign">center</property>
-                <property name="hexpand">False</property>
-                <property name="vexpand">True</property>
-                <property name="row_spacing">12</property>
-                <property name="column_spacing">12</property>
+                <property name="vexpand">1</property>
+                <property name="row-spacing">12</property>
+                <property name="column-spacing">12</property>
                 <child>
                   <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="label" translatable="yes">Duck</property>
                   </object>
                   <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">0</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">0</property>
                   </packing>
                 </child>
                 <child>
                   <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="label" translatable="yes">Background</property>
                   </object>
                   <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">0</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">0</property>
                   </packing>
                 </child>
                 <child>
                   <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <style>
                       <class name="duck"/>
                     </style>
                   </object>
                   <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">1</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">1</property>
                   </packing>
                 </child>
                 <child>
                   <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <style>
                       <class name="gradient"/>
                     </style>
                   </object>
                   <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">1</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">1</property>
                   </packing>
                 </child>
                 <child>
                   <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="label" translatable="yes">
 Blended picture</property>
                   </object>
                   <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">2</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">2</property>
                     <property name="width">2</property>
                   </packing>
                 </child>
                 <child>
                   <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="halign">center</property>
                     <style>
                       <class name="blend0"/>
                     </style>
                   </object>
                   <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">3</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">3</property>
                     <property name="width">2</property>
                   </packing>
                 </child>
@@ -157,87 +132,72 @@ Blended picture</property>
             </child>
             <child>
               <object class="GtkGrid">
-                <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="halign">center</property>
                 <property name="valign">center</property>
-                <property name="hexpand">False</property>
-                <property name="vexpand">True</property>
-                <property name="row_spacing">12</property>
-                <property name="column_spacing">12</property>
+                <property name="vexpand">1</property>
+                <property name="row-spacing">12</property>
+                <property name="column-spacing">12</property>
                 <child>
                   <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="label" translatable="yes">Red</property>
                   </object>
                   <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">0</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">0</property>
                   </packing>
                 </child>
                 <child>
                   <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="label" translatable="yes">Blue</property>
                   </object>
                   <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">0</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">0</property>
                   </packing>
                 </child>
                 <child>
                   <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <style>
                       <class name="red"/>
                     </style>
                   </object>
                   <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">1</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">1</property>
                   </packing>
                 </child>
                 <child>
                   <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <style>
                       <class name="blue"/>
                     </style>
                   </object>
                   <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">1</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">1</property>
                   </packing>
                 </child>
                 <child>
                   <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="label" translatable="yes">
 Blended picture</property>
                   </object>
                   <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">2</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">2</property>
                     <property name="width">2</property>
                   </packing>
                 </child>
                 <child>
                   <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="halign">center</property>
                     <style>
                       <class name="blend1"/>
                     </style>
                   </object>
                   <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">3</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">3</property>
                     <property name="width">2</property>
                   </packing>
                 </child>
@@ -249,71 +209,59 @@ Blended picture</property>
             </child>
             <child>
               <object class="GtkGrid">
-                <property name="visible">True</property>
-                <property name="can_focus">False</property>
                 <property name="halign">center</property>
                 <property name="valign">center</property>
-                <property name="hexpand">True</property>
-                <property name="vexpand">True</property>
-                <property name="row_spacing">6</property>
-                <property name="column_spacing">12</property>
+                <property name="hexpand">1</property>
+                <property name="vexpand">1</property>
+                <property name="row-spacing">6</property>
+                <property name="column-spacing">12</property>
                 <child>
                   <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <style>
                       <class name="cyan"/>
                     </style>
                   </object>
                   <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">1</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">1</property>
                   </packing>
                 </child>
                 <child>
                   <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <style>
                       <class name="magenta"/>
                     </style>
                   </object>
                   <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">1</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">1</property>
                   </packing>
                 </child>
                 <child>
                   <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <style>
                       <class name="yellow"/>
                     </style>
                   </object>
                   <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">3</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">3</property>
                   </packing>
                 </child>
                 <child>
                   <object class="GtkImage">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="halign">center</property>
                     <style>
                       <class name="blend2"/>
                     </style>
                   </object>
                   <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">3</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">3</property>
                   </packing>
                 </child>
                 <child>
                   <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="label" translatable="yes">Cyan</property>
                     <property name="xalign">0</property>
                     <style>
@@ -321,14 +269,12 @@ Blended picture</property>
                     </style>
                   </object>
                   <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">0</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">0</property>
                   </packing>
                 </child>
                 <child>
                   <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="label" translatable="yes">Magenta</property>
                     <property name="xalign">0</property>
                     <style>
@@ -336,14 +282,12 @@ Blended picture</property>
                     </style>
                   </object>
                   <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">0</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">0</property>
                   </packing>
                 </child>
                 <child>
                   <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="label" translatable="yes">Yellow</property>
                     <property name="xalign">0</property>
                     <style>
@@ -351,14 +295,12 @@ Blended picture</property>
                     </style>
                   </object>
                   <packing>
-                    <property name="left_attach">0</property>
-                    <property name="top_attach">2</property>
+                    <property name="left-attach">0</property>
+                    <property name="top-attach">2</property>
                   </packing>
                 </child>
                 <child>
                   <object class="GtkLabel">
-                    <property name="visible">True</property>
-                    <property name="can_focus">False</property>
                     <property name="label" translatable="yes">Blended picture</property>
                     <property name="xalign">0</property>
                     <attributes>
@@ -366,8 +308,8 @@ Blended picture</property>
                     </attributes>
                   </object>
                   <packing>
-                    <property name="left_attach">1</property>
-                    <property name="top_attach">2</property>
+                    <property name="left-attach">1</property>
+                    <property name="top-attach">2</property>
                   </packing>
                 </child>
               </object>
@@ -378,14 +320,13 @@ Blended picture</property>
             </child>
           </object>
           <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">1</property>
           </packing>
         </child>
       </object>
     </child>
     <child type="titlebar">
-      <placeholder/>
     </child>
   </object>
 </interface>

demos/gtk-demo/changedisplay.c

@@ -68,19 +68,19 @@ enum
 static GtkWidget *
 find_toplevel_at_pointer (GdkDisplay *display)
 {
-  GdkWindow *pointer_window;
+  GdkSurface *pointer_window;
   GtkWidget *widget = NULL;
 
-  pointer_window = gdk_device_get_window_at_position (gtk_get_current_event_device (),
+  pointer_window = gdk_device_get_surface_at_position (gtk_get_current_event_device (),
                                                       NULL, NULL);
 
-  /* The user data field of a GdkWindow is used to store a pointer
+  /* The user data field of a GdkSurface is used to store a pointer
    * to the widget that created it.
    */
   if (pointer_window)
     {
       gpointer widget_ptr;
-      gdk_window_get_user_data (pointer_window, &widget_ptr);
+      gdk_surface_get_user_data (pointer_window, &widget_ptr);
       widget = widget_ptr;
     }
 
@@ -88,11 +88,12 @@ find_toplevel_at_pointer (GdkDisplay *display)
 }
 
 static gboolean
-button_release_event_cb (GtkWidget       *widget,
-                         GdkEventButton  *event,
-                         gboolean        *clicked)
+release_event_cb (GtkWidget *widget,
+                  GdkEvent  *event,
+                  gboolean  *clicked)
 {
-  *clicked = TRUE;
+  if (gdk_event_get_event_type (event) == GDK_BUTTON_RELEASE)
+    *clicked = TRUE;
   return TRUE;
 }
 
@@ -127,16 +128,16 @@ query_for_toplevel (GdkDisplay *display,
   device = gtk_get_current_event_device ();
 
   if (gdk_seat_grab (gdk_device_get_seat (device),
-                     gtk_widget_get_window (popup),
+                     gtk_widget_get_surface (popup),
                      GDK_SEAT_CAPABILITY_ALL_POINTING,
                      FALSE, cursor, NULL, NULL, NULL) == GDK_GRAB_SUCCESS)
     {
       gboolean clicked = FALSE;
 
-      g_signal_connect (popup, "button-release-event",
-                        G_CALLBACK (button_release_event_cb), &clicked);
+      g_signal_connect (popup, "event",
+                        G_CALLBACK (release_event_cb), &clicked);
 
-      /* Process events until clicked is set by button_release_event_cb.
+      /* Process events until clicked is set by our button release event handler.
        * We pass in may_block=TRUE since we want to wait if there
        * are no events currently.
        */

demos/gtk-demo/clipboard.c

@@ -93,8 +93,8 @@ paste_button_clicked (GtkWidget *button,
   gdk_clipboard_read_text_async (clipboard, NULL, paste_received, entry);
 }
 
-static GdkTexture *
-get_image_texture (GtkImage *image)
+static GdkPaintable *
+get_image_paintable (GtkImage *image)
 {
   const gchar *icon_name;
   GtkIconTheme *icon_theme;
@@ -102,15 +102,15 @@ get_image_texture (GtkImage *image)
 
   switch (gtk_image_get_storage_type (image))
     {
-    case GTK_IMAGE_TEXTURE:
-      return g_object_ref (gtk_image_get_texture (image));
+    case GTK_IMAGE_PAINTABLE:
+      return g_object_ref (gtk_image_get_paintable (image));
     case GTK_IMAGE_ICON_NAME:
       icon_name = gtk_image_get_icon_name (image);
       icon_theme = gtk_icon_theme_get_for_display (gtk_widget_get_display (GTK_WIDGET (image)));
       icon_info = gtk_icon_theme_lookup_icon (icon_theme, icon_name, 48, GTK_ICON_LOOKUP_GENERIC_FALLBACK);
       if (icon_info == NULL)
         return NULL;
-      return gtk_icon_info_load_texture (icon_info);
+      return GDK_PAINTABLE (gtk_icon_info_load_texture (icon_info));
     default:
       g_warning ("Image storage type %d not handled",
                  gtk_image_get_storage_type (image));
@@ -123,11 +123,14 @@ drag_begin (GtkWidget      *widget,
             GdkDragContext *context,
             gpointer        data)
 {
-  GdkTexture *texture;
+  GdkPaintable *paintable;
 
-  texture = get_image_texture (GTK_IMAGE (widget));
-  if (texture)
-    gtk_drag_set_icon_texture (context, texture, -2, -2);
+  paintable = get_image_paintable (GTK_IMAGE (widget));
+  if (paintable)
+    {
+      gtk_drag_set_icon_paintable (context, paintable, -2, -2);
+      g_object_unref (paintable);
+    }
 }
 
 void
@@ -138,11 +141,11 @@ drag_data_get (GtkWidget        *widget,
                guint             time,
                gpointer          data)
 {
-  GdkTexture *texture;
+  GdkPaintable *paintable;
 
-  texture = get_image_texture (GTK_IMAGE (widget));
-  if (texture)
-    gtk_selection_data_set_texture (selection_data, texture);
+  paintable = get_image_paintable (GTK_IMAGE (widget));
+  if (GDK_IS_TEXTURE (paintable))
+    gtk_selection_data_set_texture (selection_data, GDK_TEXTURE (paintable));
 }
 
 static void
@@ -157,7 +160,7 @@ drag_data_received (GtkWidget        *widget,
       GdkTexture *texture;
 
       texture = gtk_selection_data_get_texture (selection_data);
-      gtk_image_set_from_texture (GTK_IMAGE (data), texture);
+      gtk_image_set_from_paintable (GTK_IMAGE (data), GDK_PAINTABLE (texture));
       g_object_unref (texture);
     }
 }
@@ -167,16 +170,16 @@ copy_image (GtkMenuItem *item,
             gpointer     data)
 {
   GdkClipboard *clipboard;
-  GdkTexture *texture;
+  GdkPaintable *paintable;
 
   clipboard = gtk_widget_get_clipboard (GTK_WIDGET (data));
-  texture = get_image_texture (GTK_IMAGE (data));
+  paintable = get_image_paintable (GTK_IMAGE (data));
 
-  if (texture)
-    {
-      gdk_clipboard_set_texture (clipboard, texture);
-      g_object_unref (texture);
-    }
+  if (GDK_IS_TEXTURE (paintable))
+    gdk_clipboard_set_texture (clipboard, GDK_TEXTURE (paintable));
+
+  if (paintable)
+    g_object_unref (paintable);
 }
 
 static void
@@ -190,7 +193,7 @@ paste_image_received (GObject      *source,
   if (texture == NULL)
     return;
     
-  gtk_image_set_from_texture (GTK_IMAGE (data), texture);
+  gtk_image_set_from_paintable (GTK_IMAGE (data), GDK_PAINTABLE (texture));
   g_object_unref (texture);
 }
 
@@ -207,34 +210,29 @@ paste_image (GtkMenuItem *item,
                                     data);
 }
 
-static gboolean
-button_press (GtkWidget      *widget,
-              GdkEventButton *event,
-              gpointer        data)
+static void
+pressed_cb (GtkGesture *gesture,
+            int         n_press,
+            double      x,
+            double      y,
+            GtkWidget  *image)
 {
   GtkWidget *menu;
   GtkWidget *item;
-  guint button;
-
-  gdk_event_get_button ((GdkEvent *)event, &button);
-
-  if (button != GDK_BUTTON_SECONDARY)
-    return FALSE;
 
   menu = gtk_menu_new ();
 
   item = gtk_menu_item_new_with_mnemonic (_("_Copy"));
-  g_signal_connect (item, "activate", G_CALLBACK (copy_image), data);
+  g_signal_connect (item, "activate", G_CALLBACK (copy_image), image);
   gtk_widget_show (item);
   gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
 
   item = gtk_menu_item_new_with_mnemonic (_("_Paste"));
-  g_signal_connect (item, "activate", G_CALLBACK (paste_image), data);
+  g_signal_connect (item, "activate", G_CALLBACK (paste_image), image);
   gtk_widget_show (item);
   gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
 
-  gtk_menu_popup_at_pointer (GTK_MENU (menu), (GdkEvent *) event);
-  return TRUE;
+  gtk_menu_popup_at_pointer (GTK_MENU (menu), NULL);
 }
 
 GtkWidget *
@@ -246,6 +244,7 @@ do_clipboard (GtkWidget *do_widget)
       GtkWidget *label;
       GtkWidget *entry, *button;
       GtkWidget *image;
+      GtkGesture *gesture;
 
       window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
       gtk_window_set_display (GTK_WINDOW (window),
@@ -322,8 +321,10 @@ do_clipboard (GtkWidget *do_widget)
                         G_CALLBACK (drag_data_received), image);
 
       /* context menu on image */
-      g_signal_connect (image, "button-press-event",
-                        G_CALLBACK (button_press), image);
+      gesture = gtk_gesture_multi_press_new (image);
+      gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), GDK_BUTTON_SECONDARY);
+      g_object_set_data_full (G_OBJECT (image), "gesture", gesture, g_object_unref);
+      g_signal_connect (gesture, "pressed", G_CALLBACK (pressed_cb), image);
 
       /* Create the second image */
       image = gtk_image_new_from_icon_name ("process-stop");
@@ -345,8 +346,10 @@ do_clipboard (GtkWidget *do_widget)
                         G_CALLBACK (drag_data_received), image);
 
       /* context menu on image */
-      g_signal_connect (image, "button-press-event",
-                        G_CALLBACK (button_press), image);
+      gesture = gtk_gesture_multi_press_new (image);
+      gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), GDK_BUTTON_SECONDARY);
+      g_object_set_data_full (G_OBJECT (image), "gesture", gesture, g_object_unref);
+      g_signal_connect (gesture, "pressed", G_CALLBACK (pressed_cb), image);
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/demo.gresource.xml

@@ -121,6 +121,7 @@
   <gresource prefix="/images">
     <file>alphatest.png</file>
     <file>floppybuddy.gif</file>
+    <file>gtk-logo.webm</file>
   </gresource>
   <gresource prefix="/pixbufs">
     <file>apple-red.png</file>
@@ -181,6 +182,9 @@
     <file>overlay.c</file>
     <file>overlay2.c</file>
     <file>pagesetup.c</file>
+    <file>paintable.c</file>
+    <file>paintable_animated.c</file>
+    <file>paintable_mediastream.c</file>
     <file>panes.c</file>
     <file>pickers.c</file>
     <file>pixbufs.c</file>
@@ -201,10 +205,10 @@
     <file>textview.c</file>
     <file>textscroll.c</file>
     <file>theming_style_classes.c</file>
-    <file>toolpalette.c</file>
     <file>transparent.c</file>
     <file>tree_store.c</file>
     <file>textmask.c</file>
+    <file>video_player.c</file>
   </gresource>
   <gresource prefix="/textview">
     <file>floppybuddy.gif</file>

demos/gtk-demo/demo.ui

@@ -31,16 +31,14 @@
     </accessibility>
   </object>
   <object class="GtkWindow" id="window1">
-    <property name="default_height">250</property>
-    <property name="default_width">440</property>
+    <property name="default-height">250</property>
+    <property name="default-width">440</property>
     <property name="title" translatable="yes">Builder</property>
     <child>
       <object class="GtkBox" id="vbox1">
-        <property name="visible">1</property>
         <property name="orientation">vertical</property>
         <child>
           <object class="GtkMenuBar" id="menubar1">
-            <property name="visible">1</property>
             <child internal-child="accessible">
               <object class="AtkObject" id="a11y-menubar">
                 <property name="AtkObject::accessible-name">The menubar</property>
@@ -48,35 +46,30 @@
             </child>
             <child>
               <object class="GtkMenuItem">
-                <property name="visible">1</property>
                 <property name="label" translatable="yes">_File</property>
                 <property name="use-underline">1</property>
                 <child type="submenu">
                   <object class="GtkMenu">
                     <child>
                       <object class="GtkMenuItem" id="new_item">
-                        <property name="visible">1</property>
                         <property name="label" translatable="yes">_New</property>
                         <property name="use-underline">1</property>
                       </object>
                     </child>
                     <child>
                       <object class="GtkMenuItem" id="open_item">
-                        <property name="visible">1</property>
                         <property name="label" translatable="yes">_Open</property>
                         <property name="use-underline">1</property>
                       </object>
                     </child>
                     <child>
                       <object class="GtkMenuItem" id="save_item">
-                        <property name="visible">1</property>
                         <property name="label" translatable="yes">_Save</property>
                         <property name="use-underline">1</property>
                       </object>
                     </child>
                     <child>
                       <object class="GtkMenuItem" id="save_as_item">
-                        <property name="visible">1</property>
                         <property name="label" translatable="yes">Save _As</property>
                         <property name="use-underline">1</property>
                         <accelerator key="s" modifiers="primary | shift-mask" signal="activate"/>
@@ -84,12 +77,10 @@
                     </child>
                     <child>
                       <object class="GtkSeparatorMenuItem">
-                        <property name="visible">1</property>
                       </object>
                     </child>
                     <child>
                       <object class="GtkMenuItem" id="quit_item">
-                        <property name="visible">1</property>
                         <property name="label" translatable="yes">_Quit</property>
                         <property name="use-underline">1</property>
                         <property name="action-name">win.quit</property>
@@ -101,28 +92,24 @@
             </child>
             <child>
               <object class="GtkMenuItem">
-                <property name="visible">1</property>
                 <property name="label" translatable="yes">_Edit</property>
                 <property name="use-underline">1</property>
                 <child type="submenu">
                   <object class="GtkMenu">
                     <child>
                       <object class="GtkMenuItem" id="copy_item">
-                        <property name="visible">1</property>
                         <property name="label" translatable="yes">_Copy</property>
                         <property name="use-underline">1</property>
                       </object>
                     </child>
                     <child>
                       <object class="GtkMenuItem" id="cut_item">
-                        <property name="visible">1</property>
                         <property name="label" translatable="yes">_Cut</property>
                         <property name="use-underline">1</property>
                       </object>
                     </child>
                     <child>
                       <object class="GtkMenuItem" id="paste_item">
-                        <property name="visible">1</property>
                         <property name="label" translatable="yes">_Paste</property>
                         <property name="use-underline">1</property>
                       </object>
@@ -133,14 +120,12 @@
             </child>
             <child>
               <object class="GtkMenuItem">
-                <property name="visible">1</property>
                 <property name="label" translatable="yes">_Help</property>
                 <property name="use-underline">1</property>
                 <child type="submenu">
                   <object class="GtkMenu">
                     <child>
                       <object class="GtkMenuItem" id="help_item">
-                        <property name="visible">1</property>
                         <property name="label" translatable="yes">_Help</property>
                         <property name="use-underline">1</property>
                         <property name="action-name">win.help</property>
@@ -148,7 +133,6 @@
                     </child>
                     <child>
                       <object class="GtkMenuItem" id="about_item">
-                        <property name="visible">1</property>
                         <property name="label" translatable="yes">_About</property>
                         <property name="use-underline">1</property>
                         <property name="action-name">win.about</property>
@@ -162,7 +146,6 @@
         </child>
         <child>
           <object class="GtkToolbar" id="toolbar1">
-            <property name="visible">1</property>
             <child internal-child="accessible">
               <object class="AtkObject" id="a11y-toolbar">
                 <property name="AtkObject::accessible-name">The toolbar</property>
@@ -170,7 +153,6 @@
             </child>
             <child>
               <object class="GtkToolButton">
-                <property name="visible">1</property>
                 <property name="label" translatable="yes">New</property>
                 <property name="tooltip-text" translatable="yes">Create a new file</property>
                 <property name="icon-name">document-new</property>
@@ -178,7 +160,6 @@
             </child>
             <child>
               <object class="GtkToolButton">
-                <property name="visible">1</property>
                 <property name="label" translatable="yes">Open</property>
                 <property name="tooltip-text" translatable="yes">Open a file</property>
                 <property name="icon-name">document-open</property>
@@ -186,7 +167,6 @@
             </child>
             <child>
               <object class="GtkToolButton">
-                <property name="visible">1</property>
                 <property name="label" translatable="yes">Save</property>
                 <property name="tooltip-text" translatable="yes">Save a file</property>
                 <property name="icon-name">document-save</property>
@@ -195,12 +175,10 @@
             </child>
             <child>
               <object class="GtkSeparatorToolItem">
-                <property name="visible">1</property>
               </object>
             </child>
             <child>
               <object class="GtkToolButton">
-                <property name="visible">1</property>
                 <property name="label" translatable="yes">Copy</property>
                 <property name="tooltip-text" translatable="yes">Copy selected object into the clipboard</property>
                 <property name="icon-name">edit-copy</property>
@@ -208,7 +186,6 @@
             </child>
             <child>
               <object class="GtkToolButton">
-                <property name="visible">1</property>
                 <property name="label" translatable="yes">Cut</property>
                 <property name="tooltip-text" translatable="yes">Cut selected object into the clipboard</property>
                 <property name="icon-name">edit-cut</property>
@@ -216,7 +193,6 @@
             </child>
             <child>
               <object class="GtkToolButton">
-                <property name="visible">1</property>
                 <property name="label" translatable="yes">Paste</property>
                 <property name="tooltip-text" translatable="yes">Paste object from the clipboard</property>
                 <property name="icon-name">edit-paste</property>
@@ -229,12 +205,10 @@
         </child>
         <child>
           <object class="GtkScrolledWindow" id="scrolledwindow1">
-            <property name="shadow_type">in</property>
-            <property name="visible">1</property>
+            <property name="shadow-type">in</property>
             <property name="expand">1</property>
             <child>
               <object class="GtkTreeView" id="treeview1">
-                <property name="visible">1</property>
                 <property name="model">liststore1</property>
                 <property name="tooltip-column">3</property>
                 <child internal-child="accessible">
@@ -287,7 +261,6 @@
         </child>
         <child>
           <object class="GtkStatusbar" id="statusbar1">
-            <property name="visible">1</property>
           </object>
           <packing>
             <property name="position">3</property>

demos/gtk-demo/dnd.c

@@ -299,7 +299,7 @@ pressed_cb (GtkGesture *gesture,
       rect.height = 0;
 
       gtk_menu_popup_at_rect (GTK_MENU (menu),
-                              gtk_widget_get_window (widget),
+                              gtk_widget_get_surface (widget),
                               &rect,
                               GDK_GRAVITY_NORTH_WEST,
                               GDK_GRAVITY_NORTH_WEST,

demos/gtk-demo/drawingarea.c

@@ -4,8 +4,8 @@
  * of various kinds.
  *
  * This demo has two drawing areas. The checkerboard area shows
- * how you can just draw something; all you have to do is write
- * a signal handler for expose_event, as shown here.
+ * how you can just draw something; all you have to do is set a function
+ * via gtk_drawing_area_set_draw_func(), as shown here.
  *
  * The "scribble" area is a bit more advanced, and shows how to handle
  * events such as button presses and mouse motion. Click the mouse
@@ -89,42 +89,38 @@ draw_brush (GtkWidget *widget,
   gtk_widget_queue_draw_area (widget, update_rect.x, update_rect.y, update_rect.width, update_rect.height);
 }
 
-static gboolean
-scribble_button_press_event (GtkWidget      *widget,
-                             GdkEventButton *event,
-                             gpointer        data)
+static double start_x;
+static double start_y;
+
+static void
+drag_begin (GtkGestureDrag *gesture,
+            double          x,
+            double          y,
+            GtkWidget      *area)
 {
-  double x, y;
-  guint button;
+  start_x = x;
+  start_y = y;
 
-  gdk_event_get_button ((GdkEvent *)event, &button);
-  gdk_event_get_coords ((GdkEvent *)event, &x, &y);
-
-  if (button == GDK_BUTTON_PRIMARY)
-    draw_brush (widget, x, y);
-
-  /* We've handled the event, stop processing */
-  return TRUE;
+  draw_brush (area, x, y);
 }
 
-static gboolean
-scribble_motion_notify_event (GtkWidget      *widget,
-                              GdkEventMotion *event,
-                              gpointer        data)
+static void
+drag_update (GtkGestureDrag *gesture,
+             double          x,
+             double          y,
+             GtkWidget      *area)
 {
-  double x, y;
-  GdkModifierType state;
-
-  gdk_event_get_state ((GdkEvent *)event, &state);
-  gdk_event_get_coords ((GdkEvent *)event, &x, &y);
-
-  if (state & GDK_BUTTON1_MASK)
-    draw_brush (widget, x, y);
-
-  /* We've handled it, stop processing */
-  return TRUE;
+  draw_brush (area, start_x + x, start_y + y);
 }
 
+static void
+drag_end (GtkGestureDrag *gesture,
+          double          x,
+          double          y,
+          GtkWidget      *area)
+{
+  draw_brush (area, start_x + x, start_y + y);
+}
 
 static void
 checkerboard_draw (GtkDrawingArea *da,
@@ -141,7 +137,7 @@ checkerboard_draw (GtkDrawingArea *da,
   /* At the start of a draw handler, a clip region has been set on
    * the Cairo context, and the contents have been cleared to the
    * widget's background color. The docs for
-   * gdk_window_begin_paint_region() give more details on how this
+   * gdk_surface_begin_paint_region() give more details on how this
    * works.
    */
 
@@ -189,6 +185,7 @@ do_drawingarea (GtkWidget *do_widget)
   GtkWidget *vbox;
   GtkWidget *da;
   GtkWidget *label;
+  GtkGesture *drag;
 
   if (!window)
     {
@@ -247,11 +244,13 @@ do_drawingarea (GtkWidget *do_widget)
       g_signal_connect (da, "size-allocate",
                         G_CALLBACK (scribble_size_allocate), NULL);
 
-      /* Event signals */
-      g_signal_connect (da, "motion-notify-event",
-                        G_CALLBACK (scribble_motion_notify_event), NULL);
-      g_signal_connect (da, "button-press-event",
-                        G_CALLBACK (scribble_button_press_event), NULL);
+      drag = gtk_gesture_drag_new (da);
+      gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (drag), GDK_BUTTON_PRIMARY);
+      g_object_set_data_full (G_OBJECT (da), "drag", drag, g_object_unref);
+
+      g_signal_connect (drag, "drag-begin", G_CALLBACK (drag_begin), da);
+      g_signal_connect (drag, "drag-update", G_CALLBACK (drag_update), da);
+      g_signal_connect (drag, "drag-end", G_CALLBACK (drag_end), da);
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/filtermodel.ui

@@ -34,31 +34,31 @@
     <property name="title" translatable="yes">Filter Model</property>
     <child>
       <object class="GtkGrid" id="grid1">
-        <property name="visible">1</property>
         <property name="margin">10</property>
-        <property name="row_spacing">10</property>
-        <property name="column_spacing">10</property>
-        <property name="column_homogeneous">1</property>
+        <property name="row-spacing">10</property>
+        <property name="column-spacing">10</property>
+        <property name="column-homogeneous">1</property>
         <child>
           <object class="GtkLabel" id="label1">
-            <property name="visible">1</property>
             <property name="label" translatable="yes">Original</property>
             <property name="xalign">0</property>
             <attributes>
               <attribute name="weight" value="bold"/>
             </attributes>
+            <accessibility>
+              <relation type="label-for" target="treeview1"/>
+            </accessibility>
           </object>
           <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">0</property>
           </packing>
         </child>
         <child>
           <object class="GtkTreeView" id="treeview1">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
+            <property name="can-focus">1</property>
             <property name="model">liststore1</property>
-            <property name="headers_clickable">0</property>
+            <property name="headers-clickable">0</property>
             <child internal-child="selection">
               <object class="GtkTreeSelection" id="treeview-selection1"/>
             </child>
@@ -84,18 +84,20 @@
                 </child>
               </object>
             </child>
+            <accessibility>
+              <relation type="labelled-by" target="label1"/>
+            </accessibility>
           </object>
           <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">1</property>
           </packing>
         </child>
         <child>
           <object class="GtkTreeView" id="treeview2">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="headers_clickable">0</property>
-            <property name="search_column">0</property>
+            <property name="can-focus">1</property>
+            <property name="headers-clickable">0</property>
+            <property name="search-column">0</property>
             <child internal-child="selection">
               <object class="GtkTreeSelection" id="treeview-selection3"/>
             </child>
@@ -133,46 +135,52 @@
                 </child>
               </object>
             </child>
+            <accessibility>
+              <relation type="labelled-by" target="label2"/>
+            </accessibility>
           </object>
           <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">1</property>
           </packing>
         </child>
         <child>
           <object class="GtkLabel" id="label2">
-            <property name="visible">1</property>
             <property name="label" translatable="yes">Computed Columns</property>
             <property name="xalign">0</property>
             <attributes>
               <attribute name="weight" value="bold"/>
             </attributes>
+            <accessibility>
+              <relation type="label-for" target="treeview2"/>
+            </accessibility>
           </object>
           <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">0</property>
           </packing>
         </child>
         <child>
           <object class="GtkLabel" id="label3">
-            <property name="visible">1</property>
             <property name="label" translatable="yes">Filtered</property>
             <property name="xalign">0</property>
             <attributes>
               <attribute name="weight" value="bold"/>
             </attributes>
+            <accessibility>
+              <relation type="label-for" target="treeview3"/>
+            </accessibility>
           </object>
           <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">2</property>
           </packing>
         </child>
         <child>
           <object class="GtkTreeView" id="treeview3">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="headers_clickable">0</property>
-            <property name="search_column">0</property>
+            <property name="can-focus">1</property>
+            <property name="headers-clickable">0</property>
+            <property name="search-column">0</property>
             <child internal-child="selection">
               <object class="GtkTreeSelection" id="treeview-selection5"/>
             </child>
@@ -192,10 +200,13 @@
                 </child>
               </object>
             </child>
+            <accessibility>
+              <relation type="labelled-by" target="label3"/>
+            </accessibility>
           </object>
           <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">3</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">3</property>
           </packing>
         </child>
       </object>

demos/gtk-demo/fishbowl.ui

@@ -5,34 +5,30 @@
     <property name="title" translatable="yes">Fishbowl</property>
     <child type="titlebar">
       <object class="GtkHeaderBar" id="">
-        <property name="visible">True</property>
-        <property name="show-title-buttons">True</property>
+        <property name="show-title-buttons">1</property>
         <child>
           <object class="GtkLabel" id="info_label">
-            <property name="visible">True</property>
           </object>
           <packing>
-            <property name="pack_type">end</property>
+            <property name="pack-type">end</property>
           </packing>
         </child>
         <child>
           <object class="GtkLabel">
-            <property name="visible">True</property>
-            <property name="label" bind-source="bowl" bind-property="count">0</property>
+            <property name="label" bind-source="bowl" bind-property="count"/>
           </object>
           <packing>
-            <property name="pack_type">end</property>
+            <property name="pack-type">end</property>
           </packing>
         </child>
         <child>
           <object class="GtkToggleButton" id="changes_allow">
-            <property name="active">False</property>
-            <property name="visible" bind-source="changes_allow" bind-property="active" bind-flags="invert-boolean">True</property>
+            <property name="visible" bind-source="changes_allow" bind-property="active" bind-flags="invert-boolean"/>
             <property name="icon-name">changes-allow</property>
             <property name="relief">none</property>
           </object>
           <packing>
-            <property name="pack_type">end</property>
+            <property name="pack-type">end</property>
           </packing>
         </child>
         <child>
@@ -43,7 +39,7 @@
             <property name="relief">none</property>
           </object>
           <packing>
-            <property name="pack_type">end</property>
+            <property name="pack-type">end</property>
           </packing>
         </child>
       </object>

demos/gtk-demo/font-features.ui

@@ -7,19 +7,16 @@
     <property name="default-height">500</property>
     <child type="titlebar">
       <object class="GtkHeaderBar">
-        <property name="visible">1</property>
         <property name="show-title-buttons">1</property>
         <property name="title">Font Explorer</property>
         <child>
           <object class="GtkButton" id="reset">
-            <property name="visible">1</property>
             <property name="can-focus">1</property>
             <property name="receives-default">1</property>
             <property name="tooltip-text">Reset</property>
             <signal name="clicked" handler="reset" swapped="no"/>
             <child>
               <object class="GtkImage">
-                <property name="visible">1</property>
                 <property name="icon-name">view-refresh-symbolic</property>
               </object>
             </child>
@@ -29,24 +26,19 @@
     </child>
     <child>
       <object class="GtkBox">
-        <property name="visible">1</property>
         <child>
           <object class="GtkScrolledWindow">
-            <property name="visible">1</property>
             <property name="can-focus">1</property>
             <property name="hscrollbar-policy">never</property>
             <child>
               <object class="GtkViewport">
-                <property name="visible">1</property>
                 <child>
                   <object class="GtkBox">
-                    <property name="visible">1</property>
                     <property name="margin">10</property>
                     <property name="orientation">vertical</property>
                     <property name="spacing">6</property>
                     <child>
                       <object class="GtkFontButton" id="font">
-                        <property name="visible">1</property>
                         <property name="can-focus">1</property>
                         <property name="receives-default">1</property>
                         <property name="font">Sans 12</property>
@@ -57,7 +49,6 @@
                       <object class="GtkExpander">
                         <child type="label">
                           <object class="GtkLabel">
-                            <property name="visible">1</property>
                             <property name="xalign">0</property>
                             <property name="label" translatable="yes">Font Features</property>
                             <attributes>
@@ -87,10 +78,8 @@
                     </child>
                     <child>
                       <object class="GtkExpander">
-                        <property name="visible">1</property>
                         <child type="label">
                           <object class="GtkLabel" id="variations_heading">
-                            <property name="visible">1</property>
                             <property name="label" translatable="yes">Font Variations</property>
                             <property name="xalign">0</property>
                             <attributes>
@@ -100,7 +89,6 @@
                         </child>
                         <child>
                           <object class="GtkGrid" id="variations_grid">
-                            <property name="visible">1</property>
                             <property name="column-spacing">10</property>
                             <property name="row-spacing">10</property>
                           </object>
@@ -118,7 +106,6 @@
         </child>
         <child>
           <object class="GtkBox">
-            <property name="visible">1</property>
             <property name="orientation">vertical</property>
             <property name="hexpand">1</property>
             <property name="vexpand">1</property>
@@ -126,10 +113,8 @@
             <property name="spacing">20</property>
             <child>
               <object class="GtkStack" id="stack">
-                <property name="visible">1</property>
                 <child>
                   <object class="GtkLabel" id="label">
-                    <property name="visible">1</property>
                     <property name="wrap">1</property>
                     <property name="xalign">0</property>
                     <property name="yalign">0</property>
@@ -142,7 +127,6 @@
                 </child>
                 <child>
                   <object class="GtkEntry" id="entry">
-                    <property name="visible">1</property>
                     <property name="text">Grumpy wizards make toxic brew for the evil Queen and Jack. A quick movement of the enemy will jeopardize six gunboats. The job of waxing linoleum frequently peeves chintzy kids. My girl wove six dozen plaid jackets before she quit. Twelve ziggurats quickly jumped a finch box.
 
 Разъяренный чтец эгоистично бьёт пятью жердями шустрого фехтовальщика. Наш банк вчера же выплатил Ф.Я. Эйхгольду комиссию за ценные вещи. Эх, чужак, общий съём цен шляп (юфть) – вдрызг! В чащах юга жил бы цитрус? Да, но фальшивый экземпляр!
@@ -161,7 +145,6 @@
             </child>
             <child>
               <object class="GtkLabel" id="settings">
-                <property name="visible">1</property>
                 <property name="wrap">1</property>
                 <property name="xalign">0</property>
                 <property name="valign">end</property>
@@ -176,24 +159,25 @@
             </child>
             <child>
               <object class="GtkBox">
-                <property name="orientation">horizontal</property>
-            <child>
-              <object class="GtkLabel" id="description">
-                <property name="visible">1</property>
-                <property name="wrap">1</property>
-                <property name="xalign">0</property>
-                <property name="valign">end</property>
-                <property name="width-chars">50</property>
-                <property name="max-width-chars">50</property>
-                <property name="hexpand">1</property>
-                <style>
-                  <class name="monospace"/>
-                </style>
-              </object>
-            </child>
+                <property name="spacing">10</property>
+                <child>
+                  <object class="GtkLabel" id="description">
+                    <property name="wrap">1</property>
+                    <property name="xalign">0</property>
+                    <property name="valign">end</property>
+                    <property name="width-chars">50</property>
+                    <property name="max-width-chars">50</property>
+                    <property name="hexpand">1</property>
+                    <style>
+                      <class name="monospace"/>
+                    </style>
+                  </object>
+                </child>
                 <child>
                   <object class="GtkToggleButton" id="edit_toggle">
                     <property name="icon-name">document-edit-symbolic</property>
+                    <property name="halign">end</property>
+                    <property name="valign">end</property>
                     <signal name="toggled" handler="toggle_edit"/>
                   </object>
                 </child>

demos/gtk-demo/font_features.c

@@ -699,12 +699,12 @@ update_features (void)
                 {
                   if (GTK_IS_RADIO_BUTTON (item->feat))
                     {
-                      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (item->feat), p[5] == '1');
+                      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (item->feat), p[6] == '1');
                     }
                   else if (GTK_IS_CHECK_BUTTON (item->feat))
                     {
                       set_inconsistent (GTK_CHECK_BUTTON (item->feat), FALSE);
-                      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (item->feat), p[5] == '1');
+                      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (item->feat), p[6] == '1');
                     }
                 }
             }

demos/gtk-demo/fontplane.c

@@ -208,7 +208,7 @@ plane_drag_gesture_end (GtkGestureDrag *gesture,
 static void
 gtk_font_plane_init (GtkFontPlane *plane)
 {
-  gtk_widget_set_has_window (GTK_WIDGET (plane), FALSE);
+  gtk_widget_set_has_surface (GTK_WIDGET (plane), FALSE);
   gtk_widget_set_can_focus (GTK_WIDGET (plane), TRUE);
 
   plane->drag_gesture = gtk_gesture_drag_new (GTK_WIDGET (plane));
@@ -248,12 +248,12 @@ plane_set_property (GObject      *object,
 		    GParamSpec   *pspec)
 {
   GtkFontPlane *plane = GTK_FONT_PLANE (object);
-  GObject *adjustment;
+  GtkAdjustment *adjustment;
 
   switch (prop_id)
     {
     case PROP_WEIGHT_ADJUSTMENT:
-      adjustment = g_value_get_object (value);
+      adjustment = GTK_ADJUSTMENT (g_value_get_object (value));
       if (adjustment)
 	{
 	  plane->weight_adj = g_object_ref_sink (adjustment);
@@ -261,7 +261,7 @@ plane_set_property (GObject      *object,
 	}
       break;
     case PROP_WIDTH_ADJUSTMENT:
-      adjustment = g_value_get_object (value);
+      adjustment = GTK_ADJUSTMENT (g_value_get_object (value));
       if (adjustment)
 	{
 	  plane->width_adj = g_object_ref_sink (adjustment);

demos/gtk-demo/geninclude.py

@@ -33,7 +33,7 @@ demos = []
 for demo_file in in_files:
     filename =  demo_file[demo_file.rfind('/')+1:]
     demo_name = filename.replace(".c", "")
-    with open(demo_file, 'r') as f:
+    with open(demo_file, 'r', encoding='utf-8') as f:
         title = f.readline().replace("/*", "").strip()
 
 

demos/gtk-demo/gtkfishbowl.c

@@ -56,7 +56,7 @@ G_DEFINE_TYPE_WITH_PRIVATE (GtkFishbowl, gtk_fishbowl, GTK_TYPE_CONTAINER)
 static void
 gtk_fishbowl_init (GtkFishbowl *fishbowl)
 {
-  gtk_widget_set_has_window (GTK_WIDGET (fishbowl), FALSE);
+  gtk_widget_set_has_surface (GTK_WIDGET (fishbowl), FALSE);
 }
 
 /**

demos/gtk-demo/gtkgears.c

@@ -0,0 +1,960 @@
+/* The rendering code in here is taken from es2gears, which has the
+ * following copyright notice:
+ *
+ * Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Ported to GLES2.
+ * Kristian Høgsberg <krh@bitplanet.net>
+ * May 3, 2010
+ *
+ * Improve GLES2 port:
+ *   * Refactor gear drawing.
+ *   * Use correct normals for surfaces.
+ *   * Improve shader.
+ *   * Use perspective projection transformation.
+ *   * Add FPS count.
+ *   * Add comments.
+ * Alexandros Frantzis <alexandros.frantzis@linaro.org>
+ * Jul 13, 2010
+ */
+
+#include "config.h"
+
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+#include <epoxy/gl.h>
+
+#include "gtkgears.h"
+
+#define STRIPS_PER_TOOTH 7
+#define VERTICES_PER_TOOTH 34
+#define GEAR_VERTEX_STRIDE 6
+
+#ifndef HAVE_SINCOS
+static void
+sincos (double x, double *_sin, double *_cos)
+{
+  *_sin = sin (x);
+  *_cos = cos (x);
+}
+#endif
+
+/**
+ * Struct describing the vertices in triangle strip
+ */
+struct vertex_strip {
+   /** The first vertex in the strip */
+   GLint first;
+   /** The number of consecutive vertices in the strip after the first */
+   GLint count;
+};
+
+/* Each vertex consist of GEAR_VERTEX_STRIDE GLfloat attributes */
+typedef GLfloat GearVertex[GEAR_VERTEX_STRIDE];
+
+/**
+ * Struct representing a gear.
+ */
+struct gear {
+   /** The array of vertices comprising the gear */
+   GearVertex *vertices;
+   /** The number of vertices comprising the gear */
+   int nvertices;
+   /** The array of triangle strips comprising the gear */
+   struct vertex_strip *strips;
+   /** The number of triangle strips comprising the gear */
+   int nstrips;
+};
+
+typedef struct {
+  /* The view rotation [x, y, z] */
+  GLfloat view_rot[GTK_GEARS_N_AXIS];
+
+  /* The Vertex Array Object */
+  GLuint vao;
+
+  /* The shader program */
+  GLuint program;
+
+  /* The gears */
+  struct gear *gear1;
+  struct gear *gear2;
+  struct gear *gear3;
+
+  /** The Vertex Buffer Object holding the vertices in the graphics card */
+  GLuint gear_vbo[3];
+
+  /** The location of the shader uniforms */
+  GLuint ModelViewProjectionMatrix_location;
+  GLuint NormalMatrix_location;
+  GLuint LightSourcePosition_location;
+  GLuint MaterialColor_location;
+
+  /* The current gear rotation angle */
+  GLfloat angle;
+
+  /* The projection matrix */
+  GLfloat ProjectionMatrix[16];
+
+  /* The direction of the directional light for the scene */
+  GLfloat LightSourcePosition[4];
+
+  gint64 first_frame_time;
+  guint tick;
+  GtkLabel *fps_label;
+} GtkGearsPrivate;
+
+G_DEFINE_TYPE_WITH_PRIVATE (GtkGears, gtk_gears, GTK_TYPE_GL_AREA)
+
+static gboolean gtk_gears_render        (GtkGLArea     *area,
+                                         GdkGLContext  *context);
+static void     gtk_gears_reshape       (GtkGLArea     *area,
+                                         int            width,
+                                         int            height);
+static void     gtk_gears_realize       (GtkWidget     *widget);
+static void     gtk_gears_unrealize     (GtkWidget     *widget);
+static gboolean gtk_gears_tick          (GtkWidget     *widget,
+                                         GdkFrameClock *frame_clock,
+                                         gpointer       user_data);
+
+static void destroy_gear (struct gear *g);
+
+GtkWidget *
+gtk_gears_new (void)
+{
+  return g_object_new (gtk_gears_get_type (),
+                       "has-depth-buffer", TRUE,
+                       NULL);
+}
+
+static void
+gtk_gears_init (GtkGears *gears)
+{
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+
+  priv->view_rot[GTK_GEARS_X_AXIS] = 20.0;
+  priv->view_rot[GTK_GEARS_Y_AXIS] = 30.0;
+  priv->view_rot[GTK_GEARS_Z_AXIS] = 20.0;
+
+  priv->LightSourcePosition[0] = 5.0;
+  priv->LightSourcePosition[1] = 5.0;
+  priv->LightSourcePosition[2] = 10.0;
+  priv->LightSourcePosition[3] = 1.0;
+
+  priv->tick = gtk_widget_add_tick_callback (GTK_WIDGET (gears), gtk_gears_tick, gears, NULL);
+}
+
+static void
+gtk_gears_finalize (GObject *obj)
+{
+  GtkGears *gears = GTK_GEARS (obj);
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+
+  gtk_widget_remove_tick_callback (GTK_WIDGET (gears), priv->tick);
+
+  g_clear_object (&priv->fps_label);
+
+  g_clear_pointer (&priv->gear1, destroy_gear);
+  g_clear_pointer (&priv->gear2, destroy_gear);
+  g_clear_pointer (&priv->gear3, destroy_gear);
+
+  G_OBJECT_CLASS (gtk_gears_parent_class)->finalize (obj);
+}
+
+static void
+gtk_gears_class_init (GtkGearsClass *klass)
+{
+  GTK_GL_AREA_CLASS (klass)->render = gtk_gears_render;
+  GTK_GL_AREA_CLASS (klass)->resize = gtk_gears_reshape;
+
+  GTK_WIDGET_CLASS (klass)->realize = gtk_gears_realize;
+  GTK_WIDGET_CLASS (klass)->unrealize = gtk_gears_unrealize;
+
+  G_OBJECT_CLASS (klass)->finalize = gtk_gears_finalize;
+}
+
+/*
+ * Fills a gear vertex.
+ *
+ * @param v the vertex to fill
+ * @param x the x coordinate
+ * @param y the y coordinate
+ * @param z the z coortinate
+ * @param n pointer to the normal table
+ *
+ * @return the operation error code
+ */
+static GearVertex *
+vert (GearVertex *v,
+      GLfloat x,
+      GLfloat y,
+      GLfloat z,
+      GLfloat n[3])
+{
+  v[0][0] = x;
+  v[0][1] = y;
+  v[0][2] = z;
+  v[0][3] = n[0];
+  v[0][4] = n[1];
+  v[0][5] = n[2];
+
+  return v + 1;
+}
+
+static void
+destroy_gear (struct gear *g)
+{
+  g_free (g->strips);
+  g_free (g);
+}
+
+/**
+ *  Create a gear wheel.
+ *
+ *  @param inner_radius radius of hole at center
+ *  @param outer_radius radius at center of teeth
+ *  @param width width of gear
+ *  @param teeth number of teeth
+ *  @param tooth_depth depth of tooth
+ *
+ *  @return pointer to the constructed struct gear
+ */
+static struct gear *
+create_gear (GLfloat inner_radius,
+             GLfloat outer_radius,
+             GLfloat width,
+             GLint teeth,
+             GLfloat tooth_depth)
+{
+  GLfloat r0, r1, r2;
+  GLfloat da;
+  GearVertex *v;
+  struct gear *gear;
+  double s[5], c[5];
+  GLfloat normal[3];
+  int cur_strip = 0;
+  int i;
+
+  /* Allocate memory for the gear */
+  gear = g_malloc (sizeof *gear);
+
+  /* Calculate the radii used in the gear */
+  r0 = inner_radius;
+  r1 = outer_radius - tooth_depth / 2.0;
+  r2 = outer_radius + tooth_depth / 2.0;
+
+  da = 2.0 * M_PI / teeth / 4.0;
+
+  /* Allocate memory for the triangle strip information */
+  gear->nstrips = STRIPS_PER_TOOTH * teeth;
+  gear->strips = g_malloc0_n (gear->nstrips, sizeof (*gear->strips));
+
+  /* Allocate memory for the vertices */
+  gear->vertices = g_malloc0_n (VERTICES_PER_TOOTH * teeth, sizeof(*gear->vertices));
+  v = gear->vertices;
+
+  for (i = 0; i < teeth; i++) {
+    /* A set of macros for making the creation of the gears easier */
+#define  GEAR_POINT(p, r, da) do { p.x = (r) * c[(da)]; p.y = (r) * s[(da)]; } while(0)
+#define  SET_NORMAL(x, y, z) do { \
+   normal[0] = (x); normal[1] = (y); normal[2] = (z); \
+} while(0)
+
+#define  GEAR_VERT(v, point, sign) vert((v), p[(point)].x, p[(point)].y, (sign) * width * 0.5, normal)
+
+#define START_STRIP do { \
+   gear->strips[cur_strip].first = v - gear->vertices; \
+} while(0);
+
+#define END_STRIP do { \
+   int _tmp = (v - gear->vertices); \
+   gear->strips[cur_strip].count = _tmp - gear->strips[cur_strip].first; \
+   cur_strip++; \
+} while (0)
+
+#define QUAD_WITH_NORMAL(p1, p2) do { \
+   SET_NORMAL((p[(p1)].y - p[(p2)].y), -(p[(p1)].x - p[(p2)].x), 0); \
+   v = GEAR_VERT(v, (p1), -1); \
+   v = GEAR_VERT(v, (p1), 1); \
+   v = GEAR_VERT(v, (p2), -1); \
+   v = GEAR_VERT(v, (p2), 1); \
+} while(0)
+    struct point {
+      GLfloat x;
+      GLfloat y;
+    };
+
+    /* Create the 7 points (only x,y coords) used to draw a tooth */
+    struct point p[7];
+
+    /* Calculate needed sin/cos for varius angles */
+    sincos(i * 2.0 * G_PI / teeth + da * 0, &s[0], &c[0]);
+    sincos(i * 2.0 * M_PI / teeth + da * 1, &s[1], &c[1]);
+    sincos(i * 2.0 * M_PI / teeth + da * 2, &s[2], &c[2]);
+    sincos(i * 2.0 * M_PI / teeth + da * 3, &s[3], &c[3]);
+    sincos(i * 2.0 * M_PI / teeth + da * 4, &s[4], &c[4]);
+
+    GEAR_POINT(p[0], r2, 1);
+    GEAR_POINT(p[1], r2, 2);
+    GEAR_POINT(p[2], r1, 0);
+    GEAR_POINT(p[3], r1, 3);
+    GEAR_POINT(p[4], r0, 0);
+    GEAR_POINT(p[5], r1, 4);
+    GEAR_POINT(p[6], r0, 4);
+
+    /* Front face */
+    START_STRIP;
+    SET_NORMAL(0, 0, 1.0);
+    v = GEAR_VERT(v, 0, +1);
+    v = GEAR_VERT(v, 1, +1);
+    v = GEAR_VERT(v, 2, +1);
+    v = GEAR_VERT(v, 3, +1);
+    v = GEAR_VERT(v, 4, +1);
+    v = GEAR_VERT(v, 5, +1);
+    v = GEAR_VERT(v, 6, +1);
+    END_STRIP;
+
+    /* Inner face */
+    START_STRIP;
+    QUAD_WITH_NORMAL(4, 6);
+    END_STRIP;
+
+    /* Back face */
+    START_STRIP;
+    SET_NORMAL(0, 0, -1.0);
+    v = GEAR_VERT(v, 6, -1);
+    v = GEAR_VERT(v, 5, -1);
+    v = GEAR_VERT(v, 4, -1);
+    v = GEAR_VERT(v, 3, -1);
+    v = GEAR_VERT(v, 2, -1);
+    v = GEAR_VERT(v, 1, -1);
+    v = GEAR_VERT(v, 0, -1);
+    END_STRIP;
+
+    /* Outer face */
+    START_STRIP;
+    QUAD_WITH_NORMAL(0, 2);
+    END_STRIP;
+
+    START_STRIP;
+    QUAD_WITH_NORMAL(1, 0);
+    END_STRIP;
+
+    START_STRIP;
+    QUAD_WITH_NORMAL(3, 1);
+    END_STRIP;
+
+    START_STRIP;
+    QUAD_WITH_NORMAL(5, 3);
+    END_STRIP;
+  }
+
+  gear->nvertices = (v - gear->vertices);
+
+  return gear;
+}
+
+/** 
+ * Multiplies two 4x4 matrices.
+ *
+ * The result is stored in matrix m.
+ *
+ * @param m the first matrix to multiply
+ * @param n the second matrix to multiply
+ */
+static void
+multiply (GLfloat *m, const GLfloat *n)
+{
+   GLfloat tmp[16];
+   const GLfloat *row, *column;
+   div_t d;
+   int i, j;
+
+   for (i = 0; i < 16; i++) {
+      tmp[i] = 0;
+      d = div(i, 4);
+      row = n + d.quot * 4;
+      column = m + d.rem;
+      for (j = 0; j < 4; j++)
+         tmp[i] += row[j] * column[j * 4];
+   }
+   memcpy(m, &tmp, sizeof tmp);
+}
+
+/** 
+ * Rotates a 4x4 matrix.
+ *
+ * @param[in,out] m the matrix to rotate
+ * @param angle the angle to rotate
+ * @param x the x component of the direction to rotate to
+ * @param y the y component of the direction to rotate to
+ * @param z the z component of the direction to rotate to
+ */
+static void
+rotate(GLfloat *m, GLfloat angle, GLfloat x, GLfloat y, GLfloat z)
+{
+   double s = sin (angle);
+   double c = cos (angle);
+
+   GLfloat r[16] = {
+      x * x * (1 - c) + c,     y * x * (1 - c) + z * s, x * z * (1 - c) - y * s, 0,
+      x * y * (1 - c) - z * s, y * y * (1 - c) + c,     y * z * (1 - c) + x * s, 0,
+      x * z * (1 - c) + y * s, y * z * (1 - c) - x * s, z * z * (1 - c) + c,     0,
+      0, 0, 0, 1
+   };
+
+   multiply(m, r);
+}
+
+/** 
+ * Translates a 4x4 matrix.
+ * 
+ * @param[in,out] m the matrix to translate
+ * @param x the x component of the direction to translate to
+ * @param y the y component of the direction to translate to
+ * @param z the z component of the direction to translate to
+ */
+static void
+translate(GLfloat *m, GLfloat x, GLfloat y, GLfloat z)
+{
+   GLfloat t[16] = { 1, 0, 0, 0,  0, 1, 0, 0,  0, 0, 1, 0,  x, y, z, 1 };
+
+   multiply(m, t);
+}
+
+/** 
+ * Creates an identity 4x4 matrix.
+ * 
+ * @param m the matrix make an identity matrix
+ */
+static void
+identity(GLfloat *m)
+{
+   GLfloat t[16] = {
+      1.0, 0.0, 0.0, 0.0,
+      0.0, 1.0, 0.0, 0.0,
+      0.0, 0.0, 1.0, 0.0,
+      0.0, 0.0, 0.0, 1.0,
+   };
+
+   memcpy(m, t, sizeof(t));
+}
+
+/** 
+ * Transposes a 4x4 matrix.
+ *
+ * @param m the matrix to transpose
+ */
+static void
+transpose(GLfloat *m)
+{
+   GLfloat t[16] = {
+      m[0], m[4], m[8],  m[12],
+      m[1], m[5], m[9],  m[13],
+      m[2], m[6], m[10], m[14],
+      m[3], m[7], m[11], m[15]};
+
+   memcpy(m, t, sizeof(t));
+}
+
+/**
+ * Inverts a 4x4 matrix.
+ *
+ * This function can currently handle only pure translation-rotation matrices.
+ * Read http://www.gamedev.net/community/forums/topic.asp?topic_id=425118
+ * for an explanation.
+ */
+static void
+invert(GLfloat *m)
+{
+   GLfloat t[16];
+   identity(t);
+
+   // Extract and invert the translation part 't'. The inverse of a
+   // translation matrix can be calculated by negating the translation
+   // coordinates.
+   t[12] = -m[12]; t[13] = -m[13]; t[14] = -m[14];
+
+   // Invert the rotation part 'r'. The inverse of a rotation matrix is
+   // equal to its transpose.
+   m[12] = m[13] = m[14] = 0;
+   transpose(m);
+
+   // inv(m) = inv(r) * inv(t)
+   multiply(m, t);
+}
+
+/** 
+ * Calculate a perspective projection transformation.
+ * 
+ * @param m the matrix to save the transformation in
+ * @param fovy the field of view in the y direction
+ * @param aspect the view aspect ratio
+ * @param zNear the near clipping plane
+ * @param zFar the far clipping plane
+ */
+void perspective(GLfloat *m, GLfloat fovy, GLfloat aspect, GLfloat zNear, GLfloat zFar)
+{
+   GLfloat tmp[16];
+   double sine, cosine, cotangent, deltaZ;
+   GLfloat radians = fovy / 2 * M_PI / 180;
+   identity(tmp);
+
+   deltaZ = zFar - zNear;
+   sincos(radians, &sine, &cosine);
+
+   if ((deltaZ == 0) || (sine == 0) || (aspect == 0))
+      return;
+
+   cotangent = cosine / sine;
+
+   tmp[0] = cotangent / aspect;
+   tmp[5] = cotangent;
+   tmp[10] = -(zFar + zNear) / deltaZ;
+   tmp[11] = -1;
+   tmp[14] = -2 * zNear * zFar / deltaZ;
+   tmp[15] = 0;
+
+   memcpy(m, tmp, sizeof(tmp));
+}
+
+/**
+ * Draws a gear.
+ *
+ * @param gear the gear to draw
+ * @param transform the current transformation matrix
+ * @param x the x position to draw the gear at
+ * @param y the y position to draw the gear at
+ * @param angle the rotation angle of the gear
+ * @param color the color of the gear
+ */
+static void
+draw_gear(GtkGears *self,
+          struct gear *gear,
+          GLuint gear_vbo,
+          GLfloat *transform,
+          GLfloat x,
+          GLfloat y,
+          GLfloat angle,
+          const GLfloat color[4])
+{
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (self);
+  GLfloat model_view[16];
+  GLfloat normal_matrix[16];
+  GLfloat model_view_projection[16];
+  int n;
+
+  /* Translate and rotate the gear */
+  memcpy(model_view, transform, sizeof (model_view));
+  translate(model_view, x, y, 0);
+  rotate(model_view, 2 * G_PI * angle / 360.0, 0, 0, 1);
+
+  /* Create and set the ModelViewProjectionMatrix */
+  memcpy(model_view_projection, priv->ProjectionMatrix, sizeof(model_view_projection));
+  multiply(model_view_projection, model_view);
+
+  glUniformMatrix4fv(priv->ModelViewProjectionMatrix_location, 1, GL_FALSE,
+                     model_view_projection);
+
+  /* 
+   * Create and set the NormalMatrix. It's the inverse transpose of the
+   * ModelView matrix.
+   */
+  memcpy(normal_matrix, model_view, sizeof (normal_matrix));
+  invert(normal_matrix);
+  transpose(normal_matrix);
+  glUniformMatrix4fv(priv->NormalMatrix_location, 1, GL_FALSE, normal_matrix);
+
+  /* Set the gear color */
+  glUniform4fv(priv->MaterialColor_location, 1, color);
+
+  /* Set the vertex buffer object to use */
+  glBindBuffer(GL_ARRAY_BUFFER, gear_vbo);
+
+  /* Set up the position of the attributes in the vertex buffer object */
+  glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(GLfloat), NULL);
+  glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(GLfloat), (GLfloat *) 0 + 3);
+
+  /* Enable the attributes */
+  glEnableVertexAttribArray(0);
+  glEnableVertexAttribArray(1);
+
+  /* Draw the triangle strips that comprise the gear */
+  for (n = 0; n < gear->nstrips; n++) {
+    glDrawArrays(GL_TRIANGLE_STRIP, gear->strips[n].first, gear->strips[n].count);
+  }
+
+  /* Disable the attributes */
+  glDisableVertexAttribArray(1);
+  glDisableVertexAttribArray(0);
+}
+
+/* new window size or exposure */
+static void
+gtk_gears_reshape (GtkGLArea *area, int width, int height)
+{
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private ((GtkGears *) area);
+
+  /* Update the projection matrix */
+  perspective (priv->ProjectionMatrix, 60.0, width / (float)height, 1.0, 1024.0);
+
+  /* Set the viewport */
+  glViewport (0, 0, (GLint) width, (GLint) height);
+}
+
+static gboolean
+gtk_gears_render (GtkGLArea    *area,
+                  GdkGLContext *context)
+{
+  static const GLfloat red[4]   = { 0.8, 0.1, 0.0, 1.0 };
+  static const GLfloat green[4] = { 0.0, 0.8, 0.2, 1.0 };
+  static const GLfloat blue[4]  = { 0.2, 0.2, 1.0, 1.0 };
+
+  GtkGears *self = GTK_GEARS (area);
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (self);
+  GLfloat transform[16];
+
+  identity (transform);
+
+  glClearColor (0.0, 0.0, 0.0, 0.0);
+  glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+  /* Translate and rotate the view */
+  translate (transform, 0, 0, -20);
+  rotate (transform, 2 * G_PI * priv->view_rot[0] / 360.0, 1, 0, 0);
+  rotate (transform, 2 * G_PI * priv->view_rot[1] / 360.0, 0, 1, 0);
+  rotate (transform, 2 * G_PI * priv->view_rot[2] / 360.0, 0, 0, 1);
+
+  /* Draw the gears */
+  draw_gear (self, priv->gear1, priv->gear_vbo[0], transform, -3.0, -2.0,      priv->angle,        red);
+  draw_gear (self, priv->gear2, priv->gear_vbo[1], transform,  3.1, -2.0, -2 * priv->angle - 9.0,  green);
+  draw_gear (self, priv->gear3, priv->gear_vbo[2], transform, -3.1,  4.2, -2 * priv->angle - 25.0, blue);
+
+  return TRUE;
+}
+
+static const char vertex_shader_gl[] =
+"#version 150\n"
+"\n"
+"in vec3 position;\n"
+"in vec3 normal;\n"
+"\n"
+"uniform mat4 ModelViewProjectionMatrix;\n"
+"uniform mat4 NormalMatrix;\n"
+"uniform vec4 LightSourcePosition;\n"
+"uniform vec4 MaterialColor;\n"
+"\n"
+"smooth out vec4 Color;\n"
+"\n"
+"void main(void)\n"
+"{\n"
+"    // Transform the normal to eye coordinates\n"
+"    vec3 N = normalize(vec3(NormalMatrix * vec4(normal, 1.0)));\n"
+"\n"
+"    // The LightSourcePosition is actually its direction for directional light\n"
+"    vec3 L = normalize(LightSourcePosition.xyz);\n"
+"\n"
+"    // Multiply the diffuse value by the vertex color (which is fixed in this case)\n"
+"    // to get the actual color that we will use to draw this vertex with\n"
+"    float diffuse = max(dot(N, L), 0.0);\n"
+"    Color = diffuse * MaterialColor;\n"
+"\n"
+"    // Transform the position to clip coordinates\n"
+"    gl_Position = ModelViewProjectionMatrix * vec4(position, 1.0);\n"
+"}";
+
+static const char fragment_shader_gl[] =
+"#version 150\n"
+"\n"
+"smooth in vec4 Color;\n"
+"\n"
+"void main(void)\n"
+"{\n"
+"    gl_FragColor = Color;\n"
+"}";
+
+static const char vertex_shader_gles[] =
+"attribute vec3 position;\n"
+"attribute vec3 normal;\n"
+"\n"
+"uniform mat4 ModelViewProjectionMatrix;\n"
+"uniform mat4 NormalMatrix;\n"
+"uniform vec4 LightSourcePosition;\n"
+"uniform vec4 MaterialColor;\n"
+"\n"
+"varying vec4 Color;\n"
+"\n"
+"void main(void)\n"
+"{\n"
+"    // Transform the normal to eye coordinates\n"
+"    vec3 N = normalize(vec3(NormalMatrix * vec4(normal, 1.0)));\n"
+"\n"
+"    // The LightSourcePosition is actually its direction for directional light\n"
+"    vec3 L = normalize(LightSourcePosition.xyz);\n"
+"\n"
+"    // Multiply the diffuse value by the vertex color (which is fixed in this case)\n"
+"    // to get the actual color that we will use to draw this vertex with\n"
+"    float diffuse = max(dot(N, L), 0.0);\n"
+"    Color = diffuse * MaterialColor;\n"
+"\n"
+"    // Transform the position to clip coordinates\n"
+"    gl_Position = ModelViewProjectionMatrix * vec4(position, 1.0);\n"
+"}";
+
+static const char fragment_shader_gles[] =
+"precision mediump float;\n"
+"varying vec4 Color;\n"
+"\n"
+"void main(void)\n"
+"{\n"
+"    gl_FragColor = Color;\n"
+"}";
+
+static void
+gtk_gears_realize (GtkWidget *widget)
+{
+  GtkGLArea *glarea = GTK_GL_AREA (widget);
+  GtkGears *gears = GTK_GEARS (widget);
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+  GdkGLContext *context;
+  GLuint vao, v, f, program;
+  const char *p;
+  char msg[512];
+
+  GTK_WIDGET_CLASS (gtk_gears_parent_class)->realize (widget);
+
+  gtk_gl_area_make_current (glarea);
+  if (gtk_gl_area_get_error (glarea) != NULL)
+    return;
+
+  context = gtk_gl_area_get_context (glarea);
+
+  glEnable (GL_CULL_FACE);
+  glEnable (GL_DEPTH_TEST);
+
+  /* Create the VAO */
+  glGenVertexArrays (1, &vao);
+  glBindVertexArray (vao);
+  priv->vao = vao;
+
+  /* Compile the vertex shader */
+  if (gdk_gl_context_get_use_es (context))
+    p = vertex_shader_gles;
+  else
+    p = vertex_shader_gl;
+  v = glCreateShader(GL_VERTEX_SHADER);
+  glShaderSource(v, 1, &p, NULL);
+  glCompileShader(v);
+  glGetShaderInfoLog(v, sizeof msg, NULL, msg);
+  g_print ("vertex shader info: %s\n", msg);
+
+  /* Compile the fragment shader */
+  if (gdk_gl_context_get_use_es (context))
+    p = fragment_shader_gles;
+  else
+    p = fragment_shader_gl;
+  f = glCreateShader(GL_FRAGMENT_SHADER);
+  glShaderSource(f, 1, &p, NULL);
+  glCompileShader(f);
+  glGetShaderInfoLog(f, sizeof msg, NULL, msg);
+  g_print ("fragment shader info: %s\n", msg);
+
+  /* Create and link the shader program */
+  program = glCreateProgram();
+  glAttachShader(program, v);
+  glAttachShader(program, f);
+  glBindAttribLocation(program, 0, "position");
+  glBindAttribLocation(program, 1, "normal");
+
+  glLinkProgram(program);
+  glGetProgramInfoLog(program, sizeof msg, NULL, msg);
+  g_print ("program info: %s\n", msg);
+  glDeleteShader (v);
+  glDeleteShader (f);
+
+  /* Enable the shaders */
+  glUseProgram(program);
+  priv->program = program;
+
+  /* Get the locations of the uniforms so we can access them */
+  priv->ModelViewProjectionMatrix_location = glGetUniformLocation(program, "ModelViewProjectionMatrix");
+  priv->NormalMatrix_location = glGetUniformLocation(program, "NormalMatrix");
+  priv->LightSourcePosition_location = glGetUniformLocation(program, "LightSourcePosition");
+  priv->MaterialColor_location = glGetUniformLocation(program, "MaterialColor");
+
+  /* Set the LightSourcePosition uniform which is constant throught the program */
+  glUniform4fv(priv->LightSourcePosition_location, 1, priv->LightSourcePosition);
+
+  /* make the gears */
+  priv->gear1 = create_gear(1.0, 4.0, 1.0, 20, 0.7);
+
+  /* Store the vertices in a vertex buffer object (VBO) */
+  glGenBuffers (1, &(priv->gear_vbo[0]));
+  glBindBuffer (GL_ARRAY_BUFFER, priv->gear_vbo[0]);
+  glBufferData (GL_ARRAY_BUFFER,
+                priv->gear1->nvertices * sizeof(GearVertex),
+                priv->gear1->vertices,
+                GL_STATIC_DRAW);
+
+  priv->gear2 = create_gear(0.5, 2.0, 2.0, 10, 0.7);
+  glGenBuffers (1, &(priv->gear_vbo[1]));
+  glBindBuffer (GL_ARRAY_BUFFER, priv->gear_vbo[1]);
+  glBufferData (GL_ARRAY_BUFFER,
+                priv->gear2->nvertices * sizeof(GearVertex),
+                priv->gear2->vertices,
+                GL_STATIC_DRAW);
+
+  priv->gear3 = create_gear(1.3, 2.0, 0.5, 10, 0.7);
+  glGenBuffers (1, &(priv->gear_vbo[2]));
+  glBindBuffer (GL_ARRAY_BUFFER, priv->gear_vbo[2]);
+  glBufferData (GL_ARRAY_BUFFER,
+                priv->gear3->nvertices * sizeof(GearVertex),
+                priv->gear3->vertices,
+                GL_STATIC_DRAW);
+}
+
+static void
+gtk_gears_unrealize (GtkWidget *widget)
+{
+  GtkGLArea *glarea = GTK_GL_AREA (widget);
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private ((GtkGears *) widget);
+
+  gtk_gl_area_make_current (glarea);
+  if (gtk_gl_area_get_error (glarea) != NULL)
+    return;
+
+  /* Release the resources associated with OpenGL */
+  if (priv->gear_vbo[0] != 0)
+    glDeleteBuffers (1, &(priv->gear_vbo[0]));
+
+  if (priv->gear_vbo[1] != 0)
+    glDeleteBuffers (1, &(priv->gear_vbo[1]));
+
+  if (priv->gear_vbo[2] != 0)
+    glDeleteBuffers (1, &(priv->gear_vbo[2]));
+
+  if (priv->vao != 0)
+    glDeleteVertexArrays (1, &priv->vao);
+
+  if (priv->program != 0)
+    glDeleteProgram (priv->program);
+
+  priv->ModelViewProjectionMatrix_location = 0;
+  priv->NormalMatrix_location = 0;
+  priv->LightSourcePosition_location = 0;
+  priv->MaterialColor_location = 0;
+
+  GTK_WIDGET_CLASS (gtk_gears_parent_class)->unrealize (widget);
+}
+
+static gboolean
+gtk_gears_tick (GtkWidget     *widget,
+                GdkFrameClock *frame_clock,
+                gpointer       user_data)
+{
+  GtkGears *gears = GTK_GEARS (widget);
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+  GdkFrameTimings *timings, *previous_timings;
+  gint64 previous_frame_time = 0;
+  gint64 frame_time;
+  gint64 history_start, history_len;
+  gint64 frame;
+  char *s;
+
+  frame = gdk_frame_clock_get_frame_counter (frame_clock);
+  frame_time = gdk_frame_clock_get_frame_time (frame_clock);
+
+  if (priv->first_frame_time == 0)
+    {
+      /* No need for changes on first frame */
+      priv->first_frame_time = frame_time;
+      if (priv->fps_label)
+        gtk_label_set_label (priv->fps_label, "FPS: ---");
+      return G_SOURCE_CONTINUE;
+    }
+
+  /* glxgears advances 70 degrees per second, so do the same */
+
+  priv->angle = fmod ((frame_time - priv->first_frame_time) / (double)G_USEC_PER_SEC * 70.0, 360.0);
+
+  gtk_widget_queue_draw (widget);
+
+  history_start = gdk_frame_clock_get_history_start (frame_clock);
+
+  if (priv->fps_label && frame % 60 == 0)
+    {
+      history_len = frame - history_start;
+      if (history_len > 0)
+        {
+          previous_timings = gdk_frame_clock_get_timings (frame_clock, frame - history_len);
+          previous_frame_time = gdk_frame_timings_get_frame_time (previous_timings);
+
+          s = g_strdup_printf ("FPS: %-4.1f", (G_USEC_PER_SEC * history_len) / (double)(frame_time - previous_frame_time));
+          gtk_label_set_label (priv->fps_label, s);
+          g_free (s);
+        }
+    }
+
+  timings = gdk_frame_clock_get_current_timings (frame_clock);
+  previous_timings = gdk_frame_clock_get_timings (frame_clock,
+                                                  gdk_frame_timings_get_frame_counter (timings) - 1);
+  if (previous_timings != NULL)
+    previous_frame_time = gdk_frame_timings_get_frame_time (previous_timings);
+
+  return G_SOURCE_CONTINUE;
+}
+
+void
+gtk_gears_set_axis (GtkGears *gears, int axis, double value)
+{
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+
+  if (axis < 0 || axis >= GTK_GEARS_N_AXIS)
+    return;
+
+  priv->view_rot[axis] = value;
+
+  gtk_widget_queue_draw (GTK_WIDGET (gears));
+}
+
+double
+gtk_gears_get_axis (GtkGears *gears, int axis)
+{
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+
+  if (axis < 0 || axis >= GTK_GEARS_N_AXIS)
+    return 0.0;
+
+  return priv->view_rot[axis];
+}
+
+void
+gtk_gears_set_fps_label (GtkGears *gears, GtkLabel *label)
+{
+  GtkGearsPrivate *priv = gtk_gears_get_instance_private (gears);
+
+  if (label)
+    g_object_ref (label);
+
+  g_clear_object (&priv->fps_label);
+
+  priv->fps_label = label;
+}

demos/gtk-demo/gtkgears.h

@@ -0,0 +1,48 @@
+#ifndef __GTK_GEARS_H__
+#define __GTK_GEARS_H__
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+enum {
+  GTK_GEARS_X_AXIS,
+  GTK_GEARS_Y_AXIS,
+  GTK_GEARS_Z_AXIS,
+
+  GTK_GEARS_N_AXIS
+};
+
+#define GTK_TYPE_GEARS      (gtk_gears_get_type ())
+#define GTK_GEARS(inst)     (G_TYPE_CHECK_INSTANCE_CAST ((inst), \
+                             GTK_TYPE_GEARS,             \
+                             GtkGears))
+#define GTK_IS_GEARS(inst)  (G_TYPE_CHECK_INSTANCE_TYPE ((inst), \
+                             GTK_TYPE_GEARS))
+
+typedef struct _GtkGears GtkGears;
+typedef struct _GtkGearsClass GtkGearsClass;
+
+struct _GtkGears {
+  GtkGLArea parent;
+};
+
+struct _GtkGearsClass {
+  GtkGLAreaClass parent_class;
+};
+
+GType      gtk_gears_get_type      (void) G_GNUC_CONST;
+
+GtkWidget *gtk_gears_new           (void);
+void       gtk_gears_set_axis      (GtkGears *gears,
+                                    int       axis,
+                                    double    value);
+double     gtk_gears_get_axis      (GtkGears *gears,
+                                    int       axis);
+void       gtk_gears_set_fps_label (GtkGears *gears,
+                                    GtkLabel *label);
+
+
+G_END_DECLS
+
+#endif /* __GTK_GEARS_H__ */

demos/gtk-demo/hypertext.c

@@ -131,11 +131,15 @@ key_press_event (GtkWidget *text_view,
   return FALSE;
 }
 
+static void set_cursor_if_appropriate (GtkTextView *text_view,
+                                       gint         x,
+                                       gint         y);
+
 /* Links can also be activated by clicking or tapping.
  */
 static gboolean
-event_after (GtkWidget *text_view,
-             GdkEvent  *ev)
+event_cb (GtkWidget *text_view,
+          GdkEvent  *ev)
 {
   GtkTextIter start, end, iter;
   GtkTextBuffer *buffer;
@@ -145,6 +149,11 @@ event_after (GtkWidget *text_view,
 
   type = gdk_event_get_event_type (ev);
 
+  gdk_event_get_coords (ev, &ex, &ey);
+  gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (text_view),
+                                         GTK_TEXT_WINDOW_WIDGET,
+                                         ex, ey, &x, &y);
+
   if (type == GDK_BUTTON_RELEASE)
     {
       guint button;
@@ -153,14 +162,17 @@ event_after (GtkWidget *text_view,
       if (button != GDK_BUTTON_PRIMARY)
         return FALSE;
     }
+  else if (type == GDK_MOTION_NOTIFY)
+    {
+      set_cursor_if_appropriate (GTK_TEXT_VIEW (text_view), x, y);
+      return FALSE;
+    }
   else if (type == GDK_TOUCH_END)
     {
     }
   else
     return FALSE;
 
-  gdk_event_get_coords (ev, &ex, &ey);
-
   buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view));
 
   /* we shouldn't follow a link if the user has selected something */
@@ -168,10 +180,6 @@ event_after (GtkWidget *text_view,
   if (gtk_text_iter_get_offset (&start) != gtk_text_iter_get_offset (&end))
     return FALSE;
 
-  gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (text_view),
-                                         GTK_TEXT_WINDOW_WIDGET,
-                                         ex, ey, &x, &y);
-
   if (gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (text_view), &iter, x, y))
     follow_if_link (text_view, &iter);
 
@@ -223,25 +231,6 @@ set_cursor_if_appropriate (GtkTextView    *text_view,
     g_slist_free (tags);
 }
 
-/* Update the cursor image if the pointer moved.
- */
-static gboolean
-motion_notify_event (GtkWidget      *text_view,
-                     GdkEventMotion *event)
-{
-  gdouble ex, ey;
-  gint x, y;
-
-  gdk_event_get_coords ((GdkEvent *)event, &ex, &ey);
-  gtk_text_view_window_to_buffer_coords (GTK_TEXT_VIEW (text_view),
-                                         GTK_TEXT_WINDOW_WIDGET,
-                                         ex, ey, &x, &y);
-
-  set_cursor_if_appropriate (GTK_TEXT_VIEW (text_view), x, y);
-
-  return FALSE;
-}
-
 GtkWidget *
 do_hypertext (GtkWidget *do_widget)
 {
@@ -268,10 +257,8 @@ do_hypertext (GtkWidget *do_widget)
       gtk_text_view_set_right_margin (GTK_TEXT_VIEW (view), 20);
       g_signal_connect (view, "key-press-event",
                         G_CALLBACK (key_press_event), NULL);
-      g_signal_connect (view, "event-after",
-                        G_CALLBACK (event_after), NULL);
-      g_signal_connect (view, "motion-notify-event",
-                        G_CALLBACK (motion_notify_event), NULL);
+      g_signal_connect (view, "event",
+                        G_CALLBACK (event_cb), NULL);
 
       buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 

demos/gtk-demo/images.c

@@ -261,9 +261,7 @@ start_progressive_loading (GtkWidget *image)
    * The timeout simply simulates a slow data source by inserting
    * pauses in the reading process.
    */
-  load_timeout = gdk_threads_add_timeout (150,
-                                progressive_timeout,
-                                image);
+  load_timeout = g_timeout_add (150, progressive_timeout, image);
   g_source_set_name_by_id (load_timeout, "[gtk+] progressive_timeout");
 }
 
@@ -319,12 +317,15 @@ toggle_sensitivity_callback (GtkWidget *togglebutton,
 GtkWidget *
 do_images (GtkWidget *do_widget)
 {
+  GtkWidget *video;
   GtkWidget *frame;
   GtkWidget *vbox;
+  GtkWidget *hbox;
+  GtkWidget *base_vbox;
   GtkWidget *image;
   GtkWidget *label;
   GtkWidget *button;
-  GIcon     *gicon;
+  GIcon *gicon;
 
   if (!window)
     {
@@ -338,9 +339,15 @@ do_images (GtkWidget *do_widget)
       g_signal_connect (window, "destroy",
                         G_CALLBACK (cleanup_callback), NULL);
 
+      base_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
+      g_object_set (base_vbox, "margin", 16, NULL);
+      gtk_container_add (GTK_CONTAINER (window), base_vbox);
+
+      hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 16);
+      gtk_container_add (GTK_CONTAINER (base_vbox), hbox);
+
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
-      g_object_set (vbox, "margin", 16, NULL);
-      gtk_container_add (GTK_CONTAINER (window), vbox);
+      gtk_container_add (GTK_CONTAINER (hbox), vbox);
 
       label = gtk_label_new (NULL);
       gtk_label_set_markup (GTK_LABEL (label),
@@ -397,6 +404,8 @@ do_images (GtkWidget *do_widget)
 
 
       /* Progressive */
+      vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
+      gtk_container_add (GTK_CONTAINER (hbox), vbox);
 
       label = gtk_label_new (NULL);
       gtk_label_set_markup (GTK_LABEL (label),
@@ -417,13 +426,32 @@ do_images (GtkWidget *do_widget)
 
       start_progressive_loading (image);
 
+      /* Video */
+      vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
+      gtk_container_add (GTK_CONTAINER (hbox), vbox);
+
+      label = gtk_label_new (NULL);
+      gtk_label_set_markup (GTK_LABEL (label),
+                            "<u>Displaying video</u>");
+      gtk_box_pack_start (GTK_BOX (vbox), label);
+
+      frame = gtk_frame_new (NULL);
+      gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
+      gtk_widget_set_halign (frame, GTK_ALIGN_CENTER);
+      gtk_widget_set_valign (frame, GTK_ALIGN_CENTER);
+      gtk_box_pack_start (GTK_BOX (vbox), frame);
+
+      video = gtk_video_new_for_resource ("/images/gtk-logo.webm");
+      gtk_media_stream_set_loop (gtk_video_get_media_stream (GTK_VIDEO (video)), TRUE);
+      gtk_container_add (GTK_CONTAINER (frame), video);
+
       /* Sensitivity control */
       button = gtk_toggle_button_new_with_mnemonic ("_Insensitive");
-      gtk_box_pack_start (GTK_BOX (vbox), button);
+      gtk_box_pack_start (GTK_BOX (base_vbox), button);
 
       g_signal_connect (button, "toggled",
                         G_CALLBACK (toggle_sensitivity_callback),
-                        vbox);
+                        base_vbox);
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/language-names.c

@@ -17,7 +17,6 @@
 
 #include "language-names.h"
 
-#define ISO_CODES_PREFIX "/usr"
 #define ISO_CODES_DATADIR ISO_CODES_PREFIX "/share/xml/iso-codes"
 #define ISO_CODES_LOCALESDIR ISO_CODES_PREFIX "/share/locale"
 

demos/gtk-demo/list_store.c

@@ -37,7 +37,7 @@ enum
 static Bug data[] =
 {
   { FALSE, 60482, "Normal",     "scrollable notebooks and hidden tabs" },
-  { FALSE, 60620, "Critical",   "gdk_window_clear_area (gdkwindow-win32.c) is not thread-safe" },
+  { FALSE, 60620, "Critical",   "gdk_surface_clear_area (gdksurface-win32.c) is not thread-safe" },
   { FALSE, 50214, "Major",      "Xft support does not clean up correctly" },
   { TRUE,  52877, "Major",      "GtkFileSelection needs a refresh method. " },
   { FALSE, 56070, "Normal",     "Can't click button after setting in sensitive" },
@@ -296,8 +296,7 @@ do_list_store (GtkWidget *do_widget)
 
       /* finish & show */
       gtk_window_set_default_size (GTK_WINDOW (window), 280, 250);
-      g_signal_connect (window, "delete-event",
-                        G_CALLBACK (window_closed), NULL);
+      g_signal_connect (window, "destroy", G_CALLBACK (window_closed), NULL);
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/listbox.ui

@@ -3,61 +3,53 @@
   <!-- interface-requires gtk+ 3.10 -->
   <!-- interface-requires gtkdemo 3.10 -->
   <object class="GtkMenu" id="menu1">
-    <property name="visible">1</property>
     <child>
       <object class="GtkMenuItem" id="menuitem1">
-        <property name="visible">1</property>
         <property name="label" translatable="yes">Email message</property>
-        <property name="use_underline">1</property>
+        <property name="use-underline">1</property>
       </object>
     </child>
     <child>
       <object class="GtkMenuItem" id="menuitem2">
-        <property name="visible">1</property>
         <property name="label" translatable="yes">Embed message</property>
-        <property name="use_underline">1</property>
+        <property name="use-underline">1</property>
       </object>
     </child>
   </object>
   <template class="GtkMessageRow" parent="GtkListBoxRow">
     <child>
       <object class="GtkGrid" id="grid1">
-        <property name="visible">1</property>
         <property name="hexpand">1</property>
         <child>
           <object class="GtkImage" id="avatar_image">
-            <property name="width_request">32</property>
-            <property name="height_request">32</property>
-            <property name="visible">1</property>
+            <property name="width-request">32</property>
+            <property name="height-request">32</property>
             <property name="halign">center</property>
             <property name="valign">start</property>
-            <property name="margin_top">8</property>
-            <property name="margin_bottom">8</property>
-            <property name="margin_start">8</property>
-            <property name="margin_end">8</property>
+            <property name="margin-top">8</property>
+            <property name="margin-bottom">8</property>
+            <property name="margin-start">8</property>
+            <property name="margin-end">8</property>
             <property name="icon-name">image-missing</property>
           </object>
           <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">0</property>
             <property name="height">5</property>
           </packing>
         </child>
         <child>
           <object class="GtkBox" id="box1">
-            <property name="visible">1</property>
             <property name="hexpand">1</property>
-            <property name="baseline_position">top</property>
+            <property name="baseline-position">top</property>
             <child>
               <object class="GtkButton" id="button2">
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
-                <property name="receives_default">1</property>
+                <property name="can-focus">1</property>
+                <property name="receives-default">1</property>
                 <property name="valign">baseline</property>
                 <property name="relief">none</property>
                 <child>
                   <object class="GtkLabel" id="source_name">
-                    <property name="visible">1</property>
                     <property name="valign">baseline</property>
                     <property name="label" translatable="0">Username</property>
                     <attributes>
@@ -69,7 +61,6 @@
             </child>
             <child>
               <object class="GtkLabel" id="source_nick">
-                <property name="visible">1</property>
                 <property name="valign">baseline</property>
                 <property name="label" translatable="0">@nick</property>
                 <style>
@@ -82,7 +73,6 @@
             </child>
             <child>
               <object class="GtkLabel" id="short_time_label">
-                <property name="visible">1</property>
                 <property name="valign">baseline</property>
                 <property name="label" translatable="yes">38m</property>
                 <style>
@@ -90,42 +80,42 @@
                 </style>
               </object>
               <packing>
-                <property name="pack_type">end</property>
+                <property name="pack-type">end</property>
                 <property name="position">2</property>
               </packing>
             </child>
           </object>
           <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">0</property>
           </packing>
         </child>
         <child>
           <object class="GtkLabel" id="content_label">
-            <property name="visible">1</property>
             <property name="halign">start</property>
             <property name="valign">start</property>
             <property name="xalign">0</property>
             <property name="yalign">0</property>
             <property name="label" translatable="0">Message</property>
             <property name="wrap">1</property>
+            <accessibility>
+              <role type="static"/>
+            </accessibility>
           </object>
           <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">1</property>
           </packing>
         </child>
         <child>
           <object class="GtkBox" id="resent_box">
             <child>
               <object class="GtkImage" id="image2">
-                <property name="visible">1</property>
-                <property name="icon_name">media-playlist-repeat</property>
+                <property name="icon-name">media-playlist-repeat</property>
               </object>
             </child>
             <child>
               <object class="GtkLabel" id="label4">
-                <property name="visible">1</property>
                 <property name="label" translatable="yes">Resent by</property>
               </object>
               <packing>
@@ -135,9 +125,8 @@
             <child>
               <object class="GtkLinkButton" id="resent_by_button">
                 <property name="label" translatable="0">reshareer</property>
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
-                <property name="receives_default">1</property>
+                <property name="can-focus">1</property>
+                <property name="receives-default">1</property>
                 <property name="relief">none</property>
                 <property name="uri">http://www.gtk.org</property>
               </object>
@@ -147,20 +136,18 @@
             </child>
           </object>
           <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">2</property>
           </packing>
         </child>
         <child>
           <object class="GtkBox" id="box3">
-            <property name="visible">1</property>
             <property name="spacing">6</property>
             <child>
               <object class="GtkButton" id="expand_button">
                 <property name="label" translatable="yes">Expand</property>
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
-                <property name="receives_default">1</property>
+                <property name="can-focus">1</property>
+                <property name="receives-default">1</property>
                 <property name="relief">none</property>
                 <signal name="clicked" handler="expand_clicked" swapped="yes"/>
               </object>
@@ -171,18 +158,16 @@
                 <child>
                   <object class="GtkButton" id="reply-button">
                     <property name="label" translatable="yes">Reply</property>
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
-                    <property name="receives_default">1</property>
+                    <property name="can-focus">1</property>
+                    <property name="receives-default">1</property>
                     <property name="relief">none</property>
                   </object>
                 </child>
                 <child>
                   <object class="GtkButton" id="reshare-button">
                     <property name="label" translatable="yes">Reshare</property>
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
-                    <property name="receives_default">1</property>
+                    <property name="can-focus">1</property>
+                    <property name="receives-default">1</property>
                     <property name="relief">none</property>
                     <signal name="clicked" handler="reshare_clicked" swapped="yes"/>
                   </object>
@@ -193,9 +178,8 @@
                 <child>
                   <object class="GtkButton" id="favorite-buttton">
                     <property name="label" translatable="yes">Favorite</property>
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
-                    <property name="receives_default">1</property>
+                    <property name="can-focus">1</property>
+                    <property name="receives-default">1</property>
                     <property name="relief">none</property>
                     <signal name="clicked" handler="favorite_clicked" swapped="yes"/>
                   </object>
@@ -205,14 +189,12 @@
                 </child>
                 <child>
                   <object class="GtkMenuButton" id="more-button">
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
-                    <property name="receives_default">1</property>
+                    <property name="can-focus">1</property>
+                    <property name="receives-default">1</property>
                     <property name="relief">none</property>
                     <property name="popup">menu1</property>
                     <child>
                       <object class="GtkLabel" id="label7">
-                        <property name="visible">1</property>
                         <property name="label" translatable="yes">More...</property>
                       </object>
                     </child>
@@ -228,53 +210,44 @@
             </child>
           </object>
           <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">3</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">3</property>
           </packing>
         </child>
         <child>
           <object class="GtkRevealer" id="details_revealer">
-            <property name="visible">1</property>
             <child>
               <object class="GtkBox" id="box5">
-                <property name="visible">1</property>
                 <property name="orientation">vertical</property>
                 <child>
                   <object class="GtkBox" id="box7">
-                    <property name="visible">1</property>
-                    <property name="margin_top">2</property>
-                    <property name="margin_bottom">2</property>
+                    <property name="margin-top">2</property>
+                    <property name="margin-bottom">2</property>
                     <property name="spacing">8</property>
                     <child>
                       <object class="GtkFrame" id="frame1">
-                        <property name="visible">1</property>
-                        <property name="shadow_type">none</property>
+                        <property name="shadow-type">none</property>
                         <child>
                           <object class="GtkLabel" id="n_reshares_label">
-                            <property name="visible">1</property>
                             <property name="label" translatable="0">&lt;b&gt;2&lt;/b&gt;
 Reshares</property>
-                            <property name="use_markup">1</property>
+                            <property name="use-markup">1</property>
                           </object>
                         </child>
-                        <child type="label_item">
-                        </child>
+                        <child type="label_item"/>
                       </object>
                     </child>
                     <child>
                       <object class="GtkFrame" id="frame2">
-                        <property name="visible">1</property>
-                        <property name="shadow_type">none</property>
+                        <property name="shadow-type">none</property>
                         <child>
                           <object class="GtkLabel" id="n_favorites_label">
-                            <property name="visible">1</property>
                             <property name="label" translatable="0">&lt;b&gt;2&lt;/b&gt;
 FAVORITES</property>
-                            <property name="use_markup">1</property>
+                            <property name="use-markup">1</property>
                           </object>
                         </child>
-                        <child type="label_item">
-                        </child>
+                        <child type="label_item"/>
                       </object>
                       <packing>
                         <property name="position">1</property>
@@ -287,10 +260,8 @@ FAVORITES</property>
                 </child>
                 <child>
                   <object class="GtkBox" id="box6">
-                    <property name="visible">1</property>
                     <child>
                       <object class="GtkLabel" id="detailed_time_label">
-                        <property name="visible">1</property>
                         <property name="label" translatable="0">4:25 AM - 14 Jun 13 </property>
                         <style>
                           <class name="dim-label"/>
@@ -300,9 +271,8 @@ FAVORITES</property>
                     <child>
                       <object class="GtkButton" id="button5">
                         <property name="label" translatable="yes">Details</property>
-                        <property name="visible">1</property>
-                        <property name="can_focus">1</property>
-                        <property name="receives_default">1</property>
+                        <property name="can-focus">1</property>
+                        <property name="receives-default">1</property>
                         <property name="relief">none</property>
                         <style>
                           <class name="dim-label"/>
@@ -321,8 +291,8 @@ FAVORITES</property>
             </child>
           </object>
           <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">4</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">4</property>
           </packing>
         </child>
       </object>

demos/gtk-demo/main.c

@@ -250,7 +250,7 @@ static gchar *types[] =
   "GtkTreeSelection ",
   "GdkDisplay ",
   "GdkScreen ",
-  "GdkWindow ",
+  "GdkSurface ",
   "GdkEventButton ",
   "GdkCursor ",
   "GtkTreeIter ",
@@ -555,7 +555,7 @@ add_data_tab (const gchar *demoname)
       resource_name = g_strconcat (resource_dir, "/", resources[i], NULL);
 
       widget = gtk_image_new_from_resource (resource_name);
-      if (gtk_image_get_surface (GTK_IMAGE (widget)) == NULL)
+      if (gtk_image_get_paintable (GTK_IMAGE (widget)) == NULL)
         {
           GBytes *bytes;
 

demos/gtk-demo/main.ui

@@ -19,24 +19,20 @@
     <property name="default-width">800</property>
     <property name="default-height">600</property>
     <property name="title">GTK+ Demo</property>
-    <signal name="delete-event" handler="gtk_false" swapped="no"/>
     <signal name="destroy" handler="gtk_main_quit" swapped="no"/>
     <child type="titlebar">
       <object class="GtkHeaderBar" id="headerbar">
-        <property name="visible">1</property>
         <property name="show-title-buttons">1</property>
         <child>
           <object class="GtkButton">
-            <property name="visible">1</property>
             <property name="valign">center</property>
-            <property name="can_focus">1</property>
-            <property name="action_name">win.run</property>
+            <property name="can-focus">1</property>
+            <property name="action-name">win.run</property>
             <style>
               <class name="text-button"/>
             </style>
             <child>
               <object class="GtkLabel">
-                <property name="visible">1</property>
                 <property name="label" translatable="yes">Run</property>
               </object>
             </child>
@@ -46,23 +42,19 @@
     </child>
     <child>
       <object class="GtkBox">
-        <property name="visible">1</property>
         <child>
           <object class="GtkFrame">
-            <property name="visible">1</property>
             <child>
               <object class="GtkScrolledWindow">
-                <property name="width_request">120</property>
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
-                <property name="hscrollbar_policy">never</property>
-                <property name="min_content_width">150</property>
+                <property name="width-request">120</property>
+                <property name="can-focus">1</property>
+                <property name="hscrollbar-policy">never</property>
+                <property name="min-content-width">150</property>
                 <child>
                   <object class="GtkTreeView" id="treeview">
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
+                    <property name="can-focus">1</property>
                     <property name="model">treestore</property>
-                    <property name="headers_visible">0</property>
+                    <property name="headers-visible">0</property>
                     <child internal-child="selection">
                       <object class="GtkTreeSelection" id="treeview-selection">
                         <property name="mode">browse</property>
@@ -92,77 +84,70 @@
         </child>
         <child>
           <object class="GtkNotebook" id="notebook">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
+            <property name="can-focus">1</property>
             <property name="scrollable">1</property>
-            <property name="enable_popup">1</property>
-            <property name="show_border">0</property>
+            <property name="enable-popup">1</property>
+            <property name="show-border">0</property>
             <property name="expand">1</property>
             <child>
               <object class="GtkScrolledWindow">
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
+                <property name="can-focus">1</property>
                 <child>
                   <object class="GtkTextView" id="info-textview">
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
+                    <property name="can-focus">1</property>
                     <property name="left-margin">20</property>
                     <property name="right-margin">20</property>
                     <property name="top-margin">20</property>
                     <property name="bottom-margin">20</property>
-                    <property name="pixels_above_lines">2</property>
-                    <property name="pixels_below_lines">2</property>
+                    <property name="pixels-above-lines">2</property>
+                    <property name="pixels-below-lines">2</property>
                     <property name="editable">0</property>
-                    <property name="wrap_mode">word</property>
-                    <property name="cursor_visible">0</property>
+                    <property name="wrap-mode">word</property>
+                    <property name="cursor-visible">0</property>
                   </object>
                 </child>
               </object>
               <packing>
-                <property name="tab_expand">1</property>
+                <property name="tab-expand">1</property>
               </packing>
             </child>
             <child type="tab">
               <object class="GtkLabel">
-                <property name="visible">1</property>
                 <property name="label" translatable="yes">_Info</property>
-                <property name="use_underline">1</property>
+                <property name="use-underline">1</property>
               </object>
               <packing>
-                <property name="tab_expand">1</property>
-                <property name="tab_fill">0</property>
+                <property name="tab-expand">1</property>
+                <property name="tab-fill">0</property>
               </packing>
             </child>
             <child>
               <object class="GtkScrolledWindow" id="source-scrolledwindow">
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
+                <property name="can-focus">1</property>
                 <child>
                   <object class="GtkTextView" id="source-textview">
-                    <property name="visible">1</property>
-                    <property name="can_focus">1</property>
+                    <property name="can-focus">1</property>
                     <property name="left-margin">20</property>
                     <property name="right-margin">20</property>
                     <property name="top-margin">20</property>
                     <property name="bottom-margin">20</property>
                     <property name="editable">0</property>
-                    <property name="cursor_visible">0</property>
+                    <property name="cursor-visible">0</property>
                   </object>
                 </child>
               </object>
               <packing>
                 <property name="position">1</property>
-                <property name="tab_expand">1</property>
+                <property name="tab-expand">1</property>
               </packing>
             </child>
             <child type="tab">
               <object class="GtkLabel">
-                <property name="visible">1</property>
                 <property name="label" translatable="yes">Source</property>
               </object>
               <packing>
                 <property name="position">1</property>
-                <property name="tab_fill">0</property>
+                <property name="tab-fill">0</property>
               </packing>
             </child>
           </object>

demos/gtk-demo/meson.build

@@ -45,6 +45,9 @@ demos = files([
   'modelbutton.c',
   'overlay.c',
   'overlay2.c',
+  'paintable.c',
+  'paintable_animated.c',
+  'paintable_mediastream.c',
   'panes.c',
   'pickers.c',
   'pixbufs.c',
@@ -66,9 +69,9 @@ demos = files([
   'textview.c',
   'textscroll.c',
   'theming_style_classes.c',
-  'toolpalette.c',
   'transparent.c',
   'tree_store.c',
+  'video_player.c',
 ])
 
 gtkdemo_deps = [ libgtk_dep, ]
@@ -94,7 +97,9 @@ gtkdemo_resources = gnome.compile_resources('gtkdemo_resources',
                                             source_dir: '.')
 
 executable('gtk4-demo',
-           'main.c', 'gtkfishbowl.c', 'fontplane.c', 'script-names.c', 'language-names.c', demos, demos_h, gtkdemo_resources,
+           'main.c', 'gtkfishbowl.c', 'fontplane.c', 'script-names.c', 'language-names.c',
+                   'gtkgears.c',
+                   demos, demos_h, gtkdemo_resources,
            c_args: gtkdemo_args,
            dependencies: gtkdemo_deps,
            include_directories: confinc,
@@ -126,3 +131,6 @@ install_data('gtk4-demo.desktop', install_dir: gtk_applicationsdir)
 # GSettings
 install_data('org.gtk.Demo.gschema.xml', install_dir: gtk_schemasdir)
 gnome.compile_schemas()
+
+# appdata
+install_data('org.gtk.Demo.appdata.xml', install_dir: gtk_appdatadir)

demos/gtk-demo/modelbutton.ui

@@ -4,23 +4,19 @@
   <object class="GtkWindow" id="window1">
     <child type="titlebar">
       <object class="GtkHeaderBar">
-        <property name="visible">1</property>
         <property name="show-title-buttons">1</property>
         <property name="title" translatable="yes">Model Button</property>
       </object>
     </child>
     <child>
       <object class="GtkBox">
-        <property name="visible">1</property>
         <property name="orientation">vertical</property>
         <property name="margin">80</property>
         <child>
           <object class="GtkMenuButton">
-            <property name="visible">1</property>
             <property name="popover">thing_a</property>
             <child>
               <object class="GtkLabel">
-                <property name="visible">1</property>
                 <property name="label">Color</property>
                 <property name="hexpand">1</property>
               </object>
@@ -29,11 +25,9 @@
         </child>
         <child>
           <object class="GtkMenuButton">
-            <property name="visible">1</property>
             <property name="popover">thing_b</property>
             <child>
               <object class="GtkLabel">
-                <property name="visible">1</property>
                 <property name="label">Flavors</property>
                 <property name="hexpand">1</property>
               </object>
@@ -42,11 +36,9 @@
         </child>
         <child>
           <object class="GtkMenuButton">
-            <property name="visible">1</property>
             <property name="popover">thing_c</property>
             <child>
               <object class="GtkLabel">
-                <property name="visible">1</property>
                 <property name="label">Tools</property>
                 <property name="hexpand">1</property>
               </object>
@@ -59,32 +51,25 @@
   <object class="GtkPopover" id="thing_a">
     <child>
       <object class="GtkBox">
-        <property name="visible">1</property>
         <property name="margin">10</property>
         <property name="orientation">vertical</property>
         <child>
           <object class="GtkModelButton">
-            <property name="visible">1</property>
             <property name="action-name">win.color</property>
-            <property name="action-target">'red'</property>
             <property name="text">Red</property>
             <property name="inverted">1</property>
           </object>
         </child>
         <child>
           <object class="GtkModelButton">
-            <property name="visible">1</property>
             <property name="action-name">win.color</property>
-            <property name="action-target">'green'</property>
             <property name="text">Green</property>
             <property name="inverted">1</property>
           </object>
         </child>
         <child>
           <object class="GtkModelButton">
-            <property name="visible">1</property>
             <property name="action-name">win.color</property>
-            <property name="action-target">'blue'</property>
             <property name="text">Blue</property>
             <property name="inverted">1</property>
           </object>
@@ -95,32 +80,27 @@
   <object class="GtkPopover" id="thing_b">
     <child>
       <object class="GtkBox">
-        <property name="visible">1</property>
         <property name="margin">10</property>
         <property name="orientation">vertical</property>
         <property name="spacing">10</property>
         <child>
           <object class="GtkModelButton">
-            <property name="visible">1</property>
             <property name="action-name">win.chocolate</property>
             <property name="text">Chocolate</property>
           </object>
         </child>
         <child>
           <object class="GtkModelButton">
-            <property name="visible">1</property>
             <property name="action-name">win.vanilla</property>
             <property name="text">Vanilla</property>
           </object>
         </child>
         <child>
           <object class="GtkSeparator">
-            <property name="visible">1</property>
           </object>
         </child>
         <child>
           <object class="GtkModelButton">
-            <property name="visible">1</property>
             <property name="action-name">win.sprinkles</property>
             <property name="text">Add Sprinkles</property>
           </object>
@@ -131,13 +111,11 @@
   <object class="GtkPopover" id="thing_c">
     <child>
       <object class="GtkBox">
-        <property name="visible">1</property>
         <property name="margin">10</property>
         <property name="orientation">vertical</property>
         <property name="spacing">10</property>
         <child>
           <object class="GtkModelButton">
-            <property name="visible">1</property>
             <property name="text">Hammer</property>
             <property name="role">check</property>
             <signal name="clicked" handler="tool_clicked"/>
@@ -145,7 +123,6 @@
         </child>
         <child>
           <object class="GtkModelButton">
-            <property name="visible">1</property>
             <property name="text">Screwdriver</property>
             <property name="role">check</property>
             <signal name="clicked" handler="tool_clicked"/>
@@ -153,7 +130,6 @@
         </child>
         <child>
           <object class="GtkModelButton">
-            <property name="visible">1</property>
             <property name="text">Drill</property>
             <property name="role">check</property>
             <signal name="clicked" handler="tool_clicked"/>

demos/gtk-demo/open-type-layout.h

@@ -1,155 +0,0 @@
-/* Registered OpenType layout tags, see
- * https://www.microsoft.com/typography/otspec/featuretags.htm
- */
-
-typedef struct {
-  unsigned int tag;
-  const char *name;
-} NamedTag;
-
-#define MAKE_TAG(a,b,c,d) (unsigned int)(((a) << 24) | ((b) << 16) | ((c) <<  8) | (d))
-
-static NamedTag open_type_layout_features[] = {
-  { MAKE_TAG('a','a','l','t'), NC_("OpenType layout", "Access All Alternates") },
-  { MAKE_TAG('a','b','v','f'), NC_("OpenType layout", "Above-base Forms") },
-  { MAKE_TAG('a','b','v','m'), NC_("OpenType layout", "Above-base Mark Positioning") },
-  { MAKE_TAG('a','b','v','s'), NC_("OpenType layout", "Above-base Substitutions") },
-  { MAKE_TAG('a','f','r','c'), NC_("OpenType layout", "Alternative Fractions") },
-  { MAKE_TAG('a','k','h','n'), NC_("OpenType layout", "Akhands") },
-  { MAKE_TAG('b','l','w','f'), NC_("OpenType layout", "Below-base Forms") },
-  { MAKE_TAG('b','l','w','m'), NC_("OpenType layout", "Below-base Mark Positioning") },
-  { MAKE_TAG('b','l','w','s'), NC_("OpenType layout", "Below-base Substitutions") },
-  { MAKE_TAG('c','a','l','t'), NC_("OpenType layout", "Contextual Alternates") },
-  { MAKE_TAG('c','a','s','e'), NC_("OpenType layout", "Case-Sensitive Forms") },
-  { MAKE_TAG('c','c','m','p'), NC_("OpenType layout", "Glyph Composition / Decomposition") },
-  { MAKE_TAG('c','f','a','r'), NC_("OpenType layout", "Conjunct Form After Ro") },
-  { MAKE_TAG('c','j','c','t'), NC_("OpenType layout", "Conjunct Forms") },
-  { MAKE_TAG('c','l','i','g'), NC_("OpenType layout", "Contextual Ligatures") },
-  { MAKE_TAG('c','p','c','t'), NC_("OpenType layout", "Centered CJK Punctuation") },
-  { MAKE_TAG('c','p','s','p'), NC_("OpenType layout", "Capital Spacing") },
-  { MAKE_TAG('c','s','w','h'), NC_("OpenType layout", "Contextual Swash") },
-  { MAKE_TAG('c','u','r','s'), NC_("OpenType layout", "Cursive Positioning") },
-  { MAKE_TAG('c','2','p','c'), NC_("OpenType layout", "Petite Capitals From Capitals") },
-  { MAKE_TAG('c','2','s','c'), NC_("OpenType layout", "Small Capitals From Capitals") },
-  { MAKE_TAG('d','i','s','t'), NC_("OpenType layout", "Distances") },
-  { MAKE_TAG('d','l','i','g'), NC_("OpenType layout", "Discretionary Ligatures") },
-  { MAKE_TAG('d','n','o','m'), NC_("OpenType layout", "Denominators") },
-  { MAKE_TAG('d','t','l','s'), NC_("OpenType layout", "Dotless Forms") },
-  { MAKE_TAG('e','x','p','t'), NC_("OpenType layout", "Expert Forms") },
-  { MAKE_TAG('f','a','l','t'), NC_("OpenType layout", "Final Glyph on Line Alternates") },
-  { MAKE_TAG('f','i','n','2'), NC_("OpenType layout", "Terminal Forms #2") },
-  { MAKE_TAG('f','i','n','3'), NC_("OpenType layout", "Terminal Forms #3") },
-  { MAKE_TAG('f','i','n','a'), NC_("OpenType layout", "Terminal Forms") },
-  { MAKE_TAG('f','l','a','c'), NC_("OpenType layout", "Flattened accent forms") },
-  { MAKE_TAG('f','r','a','c'), NC_("OpenType layout", "Fractions") },
-  { MAKE_TAG('f','w','i','d'), NC_("OpenType layout", "Full Widths") },
-  { MAKE_TAG('h','a','l','f'), NC_("OpenType layout", "Half Forms") },
-  { MAKE_TAG('h','a','l','n'), NC_("OpenType layout", "Halant Forms") },
-  { MAKE_TAG('h','a','l','t'), NC_("OpenType layout", "Alternate Half Widths") },
-  { MAKE_TAG('h','i','s','t'), NC_("OpenType layout", "Historical Forms") },
-  { MAKE_TAG('h','k','n','a'), NC_("OpenType layout", "Horizontal Kana Alternates") },
-  { MAKE_TAG('h','l','i','g'), NC_("OpenType layout", "Historical Ligatures") },
-  { MAKE_TAG('h','n','g','l'), NC_("OpenType layout", "Hangul") },
-  { MAKE_TAG('h','o','j','o'), NC_("OpenType layout", "Hojo Kanji Forms") },
-  { MAKE_TAG('h','w','i','d'), NC_("OpenType layout", "Half Widths") },
-  { MAKE_TAG('i','n','i','t'), NC_("OpenType layout", "Initial Forms") },
-  { MAKE_TAG('i','s','o','l'), NC_("OpenType layout", "Isolated Forms") },
-  { MAKE_TAG('i','t','a','l'), NC_("OpenType layout", "Italics") },
-  { MAKE_TAG('j','a','l','t'), NC_("OpenType layout", "Justification Alternates") },
-  { MAKE_TAG('j','p','7','8'), NC_("OpenType layout", "JIS78 Forms") },
-  { MAKE_TAG('j','p','8','3'), NC_("OpenType layout", "JIS83 Forms") },
-  { MAKE_TAG('j','p','9','0'), NC_("OpenType layout", "JIS90 Forms") },
-  { MAKE_TAG('j','p','0','4'), NC_("OpenType layout", "JIS2004 Forms") },
-  { MAKE_TAG('k','e','r','n'), NC_("OpenType layout", "Kerning") },
-  { MAKE_TAG('l','f','b','d'), NC_("OpenType layout", "Left Bounds") },
-  { MAKE_TAG('l','i','g','a'), NC_("OpenType layout", "Standard Ligatures") },
-  { MAKE_TAG('l','j','m','o'), NC_("OpenType layout", "Leading Jamo Forms") },
-  { MAKE_TAG('l','n','u','m'), NC_("OpenType layout", "Lining Figures") },
-  { MAKE_TAG('l','o','c','l'), NC_("OpenType layout", "Localized Forms") },
-  { MAKE_TAG('l','t','r','a'), NC_("OpenType layout", "Left-to-right alternates") },
-  { MAKE_TAG('l','t','r','m'), NC_("OpenType layout", "Left-to-right mirrored forms") },
-  { MAKE_TAG('m','a','r','k'), NC_("OpenType layout", "Mark Positioning") },
-  { MAKE_TAG('m','e','d','2'), NC_("OpenType layout", "Medial Forms #2") },
-  { MAKE_TAG('m','e','d','i'), NC_("OpenType layout", "Medial Forms") },
-  { MAKE_TAG('m','g','r','k'), NC_("OpenType layout", "Mathematical Greek") },
-  { MAKE_TAG('m','k','m','k'), NC_("OpenType layout", "Mark to Mark Positioning") },
-  { MAKE_TAG('m','s','e','t'), NC_("OpenType layout", "Mark Positioning via Substitution") },
-  { MAKE_TAG('n','a','l','t'), NC_("OpenType layout", "Alternate Annotation Forms") },
-  { MAKE_TAG('n','l','c','k'), NC_("OpenType layout", "NLC Kanji Forms") },
-  { MAKE_TAG('n','u','k','t'), NC_("OpenType layout", "Nukta Forms") },
-  { MAKE_TAG('n','u','m','r'), NC_("OpenType layout", "Numerators") },
-  { MAKE_TAG('o','n','u','m'), NC_("OpenType layout", "Oldstyle Figures") },
-  { MAKE_TAG('o','p','b','d'), NC_("OpenType layout", "Optical Bounds") },
-  { MAKE_TAG('o','r','d','n'), NC_("OpenType layout", "Ordinals") },
-  { MAKE_TAG('o','r','n','m'), NC_("OpenType layout", "Ornaments") },
-  { MAKE_TAG('p','a','l','t'), NC_("OpenType layout", "Proportional Alternate Widths") },
-  { MAKE_TAG('p','c','a','p'), NC_("OpenType layout", "Petite Capitals") },
-  { MAKE_TAG('p','k','n','a'), NC_("OpenType layout", "Proportional Kana") },
-  { MAKE_TAG('p','n','u','m'), NC_("OpenType layout", "Proportional Figures") },
-  { MAKE_TAG('p','r','e','f'), NC_("OpenType layout", "Pre-Base Forms") },
-  { MAKE_TAG('p','r','e','s'), NC_("OpenType layout", "Pre-base Substitutions") },
-  { MAKE_TAG('p','s','t','f'), NC_("OpenType layout", "Post-base Forms") },
-  { MAKE_TAG('p','s','t','s'), NC_("OpenType layout", "Post-base Substitutions") },
-  { MAKE_TAG('p','w','i','d'), NC_("OpenType layout", "Proportional Widths") },
-  { MAKE_TAG('q','w','i','d'), NC_("OpenType layout", "Quarter Widths") },
-  { MAKE_TAG('r','a','n','d'), NC_("OpenType layout", "Randomize") },
-  { MAKE_TAG('r','c','l','t'), NC_("OpenType layout", "Required Contextual Alternates") },
-  { MAKE_TAG('r','k','r','f'), NC_("OpenType layout", "Rakar Forms") },
-  { MAKE_TAG('r','l','i','g'), NC_("OpenType layout", "Required Ligatures") },
-  { MAKE_TAG('r','p','h','f'), NC_("OpenType layout", "Reph Forms") },
-  { MAKE_TAG('r','t','b','d'), NC_("OpenType layout", "Right Bounds") },
-  { MAKE_TAG('r','t','l','a'), NC_("OpenType layout", "Right-to-left alternates") },
-  { MAKE_TAG('r','t','l','m'), NC_("OpenType layout", "Right-to-left mirrored forms") },
-  { MAKE_TAG('r','u','b','y'), NC_("OpenType layout", "Ruby Notation Forms") },
-  { MAKE_TAG('r','v','r','n'), NC_("OpenType layout", "Required Variation Alternates") },
-  { MAKE_TAG('s','a','l','t'), NC_("OpenType layout", "Stylistic Alternates") },
-  { MAKE_TAG('s','i','n','f'), NC_("OpenType layout", "Scientific Inferiors") },
-  { MAKE_TAG('s','i','z','e'), NC_("OpenType layout", "Optical size") },
-  { MAKE_TAG('s','m','c','p'), NC_("OpenType layout", "Small Capitals") },
-  { MAKE_TAG('s','m','p','l'), NC_("OpenType layout", "Simplified Forms") },
-  { MAKE_TAG('s','s','0','1'), NC_("OpenType layout", "Stylistic Set 1") },
-  { MAKE_TAG('s','s','0','2'), NC_("OpenType layout", "Stylistic Set 2") },
-  { MAKE_TAG('s','s','0','3'), NC_("OpenType layout", "Stylistic Set 3") },
-  { MAKE_TAG('s','s','0','4'), NC_("OpenType layout", "Stylistic Set 4") },
-  { MAKE_TAG('s','s','0','5'), NC_("OpenType layout", "Stylistic Set 5") },
-  { MAKE_TAG('s','s','0','6'), NC_("OpenType layout", "Stylistic Set 6") },
-  { MAKE_TAG('s','s','0','7'), NC_("OpenType layout", "Stylistic Set 7") },
-  { MAKE_TAG('s','s','0','8'), NC_("OpenType layout", "Stylistic Set 8") },
-  { MAKE_TAG('s','s','0','9'), NC_("OpenType layout", "Stylistic Set 9") },
-  { MAKE_TAG('s','s','1','0'), NC_("OpenType layout", "Stylistic Set 10") },
-  { MAKE_TAG('s','s','1','1'), NC_("OpenType layout", "Stylistic Set 11") },
-  { MAKE_TAG('s','s','1','2'), NC_("OpenType layout", "Stylistic Set 12") },
-  { MAKE_TAG('s','s','1','3'), NC_("OpenType layout", "Stylistic Set 13") },
-  { MAKE_TAG('s','s','1','4'), NC_("OpenType layout", "Stylistic Set 14") },
-  { MAKE_TAG('s','s','1','5'), NC_("OpenType layout", "Stylistic Set 15") },
-  { MAKE_TAG('s','s','1','6'), NC_("OpenType layout", "Stylistic Set 16") },
-  { MAKE_TAG('s','s','1','7'), NC_("OpenType layout", "Stylistic Set 17") },
-  { MAKE_TAG('s','s','1','8'), NC_("OpenType layout", "Stylistic Set 18") },
-  { MAKE_TAG('s','s','1','9'), NC_("OpenType layout", "Stylistic Set 19") },
-  { MAKE_TAG('s','s','2','0'), NC_("OpenType layout", "Stylistic Set 20") },
-  { MAKE_TAG('s','s','t','y'), NC_("OpenType layout", "Math script style alternates") },
-  { MAKE_TAG('s','t','c','h'), NC_("OpenType layout", "Stretching Glyph Decomposition") },
-  { MAKE_TAG('s','u','b','s'), NC_("OpenType layout", "Subscript") },
-  { MAKE_TAG('s','u','p','s'), NC_("OpenType layout", "Superscript") },
-  { MAKE_TAG('s','w','s','h'), NC_("OpenType layout", "Swash") },
-  { MAKE_TAG('t','i','t','l'), NC_("OpenType layout", "Titling") },
-  { MAKE_TAG('t','j','m','o'), NC_("OpenType layout", "Trailing Jamo Forms") },
-  { MAKE_TAG('t','n','a','m'), NC_("OpenType layout", "Traditional Name Forms") },
-  { MAKE_TAG('t','n','u','m'), NC_("OpenType layout", "Tabular Figures") },
-  { MAKE_TAG('t','r','a','d'), NC_("OpenType layout", "Traditional Forms") },
-  { MAKE_TAG('t','w','i','d'), NC_("OpenType layout", "Third Widths") },
-  { MAKE_TAG('u','n','i','c'), NC_("OpenType layout", "Unicase") },
-  { MAKE_TAG('v','a','l','t'), NC_("OpenType layout", "Alternate Vertical Metrics") },
-  { MAKE_TAG('v','a','t','u'), NC_("OpenType layout", "Vattu Variants") },
-  { MAKE_TAG('v','e','r','t'), NC_("OpenType layout", "Vertical Writing") },
-  { MAKE_TAG('v','h','a','l'), NC_("OpenType layout", "Alternate Vertical Half Metrics") },
-  { MAKE_TAG('v','j','m','o'), NC_("OpenType layout", "Vowel Jamo Forms") },
-  { MAKE_TAG('v','k','n','a'), NC_("OpenType layout", "Vertical Kana Alternates") },
-  { MAKE_TAG('v','k','r','n'), NC_("OpenType layout", "Vertical Kerning") },
-  { MAKE_TAG('v','p','a','l'), NC_("OpenType layout", "Proportional Alternate Vertical Metrics") },
-  { MAKE_TAG('v','r','t','2'), NC_("OpenType layout", "Vertical Alternates and Rotation") },
-  { MAKE_TAG('v','r','t','r'), NC_("OpenType layout", "Vertical Alternates for Rotation") },
-  { MAKE_TAG('z','e','r','o'), NC_("OpenType layout", "Slashed Zero") },
-};
-
-#undef MAKE_TAG

demos/gtk-demo/org.gtk.Demo.appdata.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop">
+  <id>org.gtk.Demo.desktop</id>
+  <metadata_license>CC0-1.0</metadata_license>
+  <project_license>LGPL-2.0+</project_license>
+  <name>GTK+ Demo</name>
+  <summary>Program to demonstrate GTK+ functions</summary>
+  <description>
+    <p>
+      GTK+ Demo is a collection of examples that demonstrate the major
+      features of the GTK+ toolkit.
+    </p>
+  </description>
+  <screenshots>
+    <screenshot>
+      <image>https://static.gnome.org/appdata/gtk4-demo/gtk-demo1.png</image>
+      <caption>The main window</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://static.gnome.org/appdata/gtk4-demo/gtk-demo2.png</image>
+      <caption>An example</caption>
+    </screenshot>
+  </screenshots>
+  <kudos>
+    <kudo>AppMenu</kudo>
+    <kudo>HiDpiIcon</kudo>
+    <kudo>ModernToolkit</kudo>
+  </kudos>
+  <url type="homepage">https://www.gtk.org</url>
+  <translation type="gettext">gtk-4.0</translation>
+  <update_contact>matthias.clasen_at_gmail.com</update_contact>
+  <developer_name>Matthias Clasen and others</developer_name>
+</component>

demos/gtk-demo/paintable.c

@@ -0,0 +1,179 @@
+/* Paintable/A simple paintable
+ *
+ * GdkPaintable is an interface used by GTK for drawings of any sort
+ * that do not require layouting or positioning.
+ *
+ * This demo code gives a simple example on how a paintable can
+ * be created.
+ *
+ * Paintables can be used in many places inside GTK widgets, but the
+ * most common usage is inside GtkImage and that's what we're going
+ * to do here.
+ */
+
+#include <gtk/gtk.h>
+
+#include "paintable.h"
+
+static GtkWidget *window = NULL;
+
+/* First, add the boilerplate for the object itself.
+ * This part would normally go in the header.
+ */
+#define GTK_TYPE_NUCLEAR_ICON (gtk_nuclear_icon_get_type ())
+G_DECLARE_FINAL_TYPE (GtkNuclearIcon, gtk_nuclear_icon, GTK, NUCLEAR_ICON, GObject)
+
+/* Declare the struct. */
+struct _GtkNuclearIcon
+{
+  GObject parent_instance;
+
+  /* We store this rotation value here.
+   * We are not doing with it here, but it will come in
+   * very useful in the followup demos.
+   */
+  double rotation;
+};
+
+struct _GtkNuclearIconClass
+{
+  GObjectClass parent_class;
+};
+
+/* This is the function that draws the actual icon.
+ * We make it a custom function and define it in the paintable.h header
+ * so that it can be called from all the other demos, too.
+ */
+void
+gtk_nuclear_snapshot (GtkSnapshot *snapshot,
+                      double       width,
+                      double       height,
+                      double       rotation)
+{
+#define RADIUS 0.3
+  cairo_t *cr;
+  double size;
+
+  gtk_snapshot_append_color (snapshot,
+                             &(GdkRGBA) { 0.9, 0.75, 0.15, 1.0 },
+                             &GRAPHENE_RECT_INIT (0, 0, width, height),
+                             "Yellow background");
+
+  size = MIN (width, height);
+  cr = gtk_snapshot_append_cairo (snapshot,
+                                  &GRAPHENE_RECT_INIT ((width - size) / 2.0,
+                                                       (height - size) / 2.0,
+                                                       size, size),
+                                  "Radioactive Icon");
+  cairo_translate (cr, width / 2.0, height / 2.0);
+  cairo_scale (cr, size, size);
+  cairo_rotate (cr, rotation);
+
+  cairo_arc (cr, 0, 0, 0.1, - G_PI, G_PI);
+  cairo_fill (cr);
+
+  cairo_set_line_width (cr, RADIUS);
+  cairo_set_dash (cr, (double[1]) { RADIUS * G_PI / 3 }, 1, 0.0);
+  cairo_arc (cr, 0, 0, RADIUS, - G_PI, G_PI);
+  cairo_stroke (cr);
+
+  cairo_destroy (cr);
+}
+
+/* Here, we implement the functionality required by the GdkPaintable interface */
+static void
+gtk_nuclear_icon_snapshot (GdkPaintable *paintable,
+                           GdkSnapshot  *snapshot,
+                           double        width,
+                           double        height)
+{
+  GtkNuclearIcon *nuclear = GTK_NUCLEAR_ICON (paintable);
+
+  /* The snapshot function is the only function we need to implement.
+   * It does the actual drawing of the paintable.
+   */
+
+  gtk_nuclear_snapshot (snapshot,
+                        width, height,
+                        nuclear->rotation);
+}
+
+static GdkPaintableFlags
+gtk_nuclear_icon_get_flags (GdkPaintable *paintable)
+{
+  /* The flags are very useful to let GTK know that this image
+   * is never going to change.
+   * This allows many optimizations and should therefore always
+   * be set.
+   */
+  return GDK_PAINTABLE_STATIC_CONTENTS | GDK_PAINTABLE_STATIC_SIZE;
+}
+
+static void
+gtk_nuclear_icon_paintable_init (GdkPaintableInterface *iface)
+{
+  iface->snapshot = gtk_nuclear_icon_snapshot;
+  iface->get_flags = gtk_nuclear_icon_get_flags;
+}
+
+/* When defining the GType, we need to implement the GdkPaintable interface */
+G_DEFINE_TYPE_WITH_CODE (GtkNuclearIcon, gtk_nuclear_icon, G_TYPE_OBJECT,
+                         G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
+                                                gtk_nuclear_icon_paintable_init))
+
+/* Here's the boilerplate for the GObject declaration.
+ * We don't need to do anything special here, because we keep no
+ * data of our own.
+ */
+static void
+gtk_nuclear_icon_class_init (GtkNuclearIconClass *klass)
+{
+}
+
+static void
+gtk_nuclear_icon_init (GtkNuclearIcon *nuclear)
+{
+}
+
+/* And finally, we add a simple constructor.
+ * It is declared in the header so that the other examples
+ * can use it.
+ */
+GdkPaintable *
+gtk_nuclear_icon_new (double rotation)
+{
+  GtkNuclearIcon *nuclear;
+
+  nuclear = g_object_new (GTK_TYPE_NUCLEAR_ICON, NULL);
+  nuclear->rotation = rotation;
+
+  return GDK_PAINTABLE (nuclear);
+}
+
+GtkWidget *
+do_paintable (GtkWidget *do_widget)
+{
+  GdkPaintable *nuclear;
+  GtkWidget *image;
+
+  if (!window)
+    {
+      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      gtk_window_set_title (GTK_WINDOW (window), "Nuclear Icon");
+      gtk_window_set_default_size (GTK_WINDOW (window), 300, 200);
+
+      nuclear = gtk_nuclear_icon_new (0.0);
+      image = gtk_image_new_from_paintable (nuclear);
+      gtk_container_add (GTK_CONTAINER (window), image);
+      g_object_unref (nuclear);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_widget_destroy (window);
+
+  return window;
+}

demos/gtk-demo/paintable.h

@@ -0,0 +1,15 @@
+#ifndef __PAINTABLE_H__
+#define __PAINTABLE_H__
+
+#include <gtk/gtk.h>
+
+void            gtk_nuclear_snapshot           (GtkSnapshot     *snapshot,
+                                                double           width,
+                                                double           height,
+                                                double           rotation);
+
+GdkPaintable *  gtk_nuclear_icon_new            (double          rotation);
+GdkPaintable *  gtk_nuclear_animation_new       (void);
+GtkMediaStream *gtk_nuclear_media_stream_new    (void);
+
+#endif /* __PAINTABLE_H__ */

demos/gtk-demo/paintable_animated.c

@@ -0,0 +1,209 @@
+/* Paintable/An animated paintable
+ *
+ * GdkPaintable also allows paintables to change.
+ *
+ * This demo code gives an example of how this could work. It builds
+ * on the previous simple example.
+ *
+ * Paintables can also change their size, this works similarly, but
+ * we will not demonstrate this here as our icon does not have any size.
+ */
+
+#include <gtk/gtk.h>
+
+#include "paintable.h"
+
+static GtkWidget *window = NULL;
+
+/* First, add the boilerplate for the object itself.
+ * This part would normally go in the header.
+ */
+#define GTK_TYPE_NUCLEAR_ANIMATION (gtk_nuclear_animation_get_type ())
+G_DECLARE_FINAL_TYPE (GtkNuclearAnimation, gtk_nuclear_animation, GTK, NUCLEAR_ANIMATION, GObject)
+
+/* Do a full rotation in 5 seconds.
+ * We will register the timeout for doing a single step to
+ * be executed every 10ms, which means after 1000 steps
+ * 10s will have elapsed.
+ */
+#define MAX_PROGRESS 500
+
+/* Declare the struct. */
+struct _GtkNuclearAnimation
+{
+  GObject parent_instance;
+
+  /* This variable stores the progress of our animation.
+   * We just count upwards until we hit MAX_PROGRESS and
+   * then start from scratch.
+   */
+  int progress;
+
+  /* This variable holds the ID of the timer that updates
+   * our progress variable.
+   * We need to keep track of it so that we can remove it
+   * again.
+   */
+  guint source_id;
+};
+
+struct _GtkNuclearAnimationClass
+{
+  GObjectClass parent_class;
+};
+
+/* Again, we implement the functionality required by the GdkPaintable interface */
+static void
+gtk_nuclear_animation_snapshot (GdkPaintable *paintable,
+                                GdkSnapshot  *snapshot,
+                                double        width,
+                                double        height)
+{
+  GtkNuclearAnimation *nuclear = GTK_NUCLEAR_ANIMATION (paintable);
+
+  /* We call the function from the previous example here. */
+  gtk_nuclear_snapshot (snapshot,
+                        width, height,
+                        2 * G_PI * nuclear->progress / MAX_PROGRESS);
+}
+
+static GdkPaintable *
+gtk_nuclear_animation_get_current_image (GdkPaintable *paintable)
+{
+  GtkNuclearAnimation *nuclear = GTK_NUCLEAR_ANIMATION (paintable);
+
+  /* For non-static paintables, this function needs to be implemented.
+   * It must return a static paintable with the same contents
+   * as this one currently has.
+   *
+   * Luckily we added the rotation property to the nuclear icon
+   * object previously, so we can just return an instance of that one.
+   */
+  return gtk_nuclear_icon_new (2 * G_PI * nuclear->progress / MAX_PROGRESS);
+}
+
+static GdkPaintableFlags
+gtk_nuclear_animation_get_flags (GdkPaintable *paintable)
+{
+  /* This time, we cannot set the static contents flag because our animation
+   * changes the contents.
+   * However, our size still doesn't change, so report that flag.
+   */
+  return GDK_PAINTABLE_STATIC_SIZE;
+}
+
+static void
+gtk_nuclear_animation_paintable_init (GdkPaintableInterface *iface)
+{
+  iface->snapshot = gtk_nuclear_animation_snapshot;
+  iface->get_current_image = gtk_nuclear_animation_get_current_image;
+  iface->get_flags = gtk_nuclear_animation_get_flags;
+}
+
+/* When defining the GType, we need to implement the GdkPaintable interface */
+G_DEFINE_TYPE_WITH_CODE (GtkNuclearAnimation, gtk_nuclear_animation, G_TYPE_OBJECT,
+                         G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
+                                                gtk_nuclear_animation_paintable_init))
+
+/* This time, we need to implement the finalize function,
+ */
+static void
+gtk_nuclear_animation_finalize (GObject *object)
+{
+  GtkNuclearAnimation *nuclear = GTK_NUCLEAR_ANIMATION (object);
+
+  /* Remove the timeout we registered when constructing
+   * the object. 
+   */
+  g_source_remove (nuclear->source_id);
+
+  /* Don't forget to chain up to the parent class' implementation
+   * of the finalize function.
+   */
+  G_OBJECT_CLASS (gtk_nuclear_animation_parent_class)->finalize (object);
+}
+
+/* In the class declaration, we need to add our finalize function.
+ */
+static void
+gtk_nuclear_animation_class_init (GtkNuclearAnimationClass *klass)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+
+  gobject_class->finalize = gtk_nuclear_animation_finalize;
+}
+
+static gboolean
+gtk_nuclear_animation_step (gpointer data)
+{
+  GtkNuclearAnimation *nuclear = data;
+
+  /* Add 1 to the progress and reset it when we've reached
+   * the maximum value.
+   * The animation will rotate by 360 degrees at MAX_PROGRESS
+   * so it will be identical to the original unrotated one.
+   */
+  nuclear->progress = (nuclear->progress + 1) % MAX_PROGRESS;
+
+  /* Now we need to tell all listeners that we've changed out contents
+   * so that they can redraw this paintable.
+   */
+  gdk_paintable_invalidate_contents (GDK_PAINTABLE (nuclear));
+
+  /* We want this timeout function to be called repeatedly,
+   * so we return this value here.
+   * If this was a single-shot timeout, we could also
+   * return G_SOURCE_REMOVE here to get rid of it.
+   */
+  return G_SOURCE_CONTINUE;
+}
+
+static void
+gtk_nuclear_animation_init (GtkNuclearAnimation *nuclear)
+{
+  /* Add a timer here that constantly updates our animations.
+   * We want to update it often enough to guarantee a smooth animation.
+   *
+   * Ideally, we'd attach to the frame clock, but because we do
+   * not have it available here, we just use a regular timeout
+   * that hopefully triggers often enough to be smooth.
+   */
+  nuclear->source_id = g_timeout_add (10,
+                                      gtk_nuclear_animation_step,
+                                      nuclear);
+}
+
+/* And finally, we add the simple constructor we declared in the header. */
+GdkPaintable *
+gtk_nuclear_animation_new (void)
+{
+  return g_object_new (GTK_TYPE_NUCLEAR_ANIMATION, NULL);
+}
+
+GtkWidget *
+do_paintable_animated (GtkWidget *do_widget)
+{
+  GdkPaintable *nuclear;
+  GtkWidget *image;
+
+  if (!window)
+    {
+      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      gtk_window_set_title (GTK_WINDOW (window), "Nuclear Animation");
+      gtk_window_set_default_size (GTK_WINDOW (window), 300, 200);
+
+      nuclear = gtk_nuclear_animation_new ();
+      image = gtk_image_new_from_paintable (nuclear);
+      gtk_container_add (GTK_CONTAINER (window), image);
+      g_object_unref (nuclear);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_widget_destroy (window);
+
+  return window;
+}

demos/gtk-demo/paintable_mediastream.c

@@ -0,0 +1,312 @@
+/* Paintable/A media stream
+ *
+ * GdkPaintable is also used by the GtkMediaStream class.
+ *
+ * This demo code turns the nuclear media_stream into the object
+ * GTK uses for videos. This allows treating the icon like a
+ * regular video, so we can for example attach controls to it.
+ *
+ * After all, what good is an media_stream if one cannot pause
+ * it.
+ */
+
+#include <gtk/gtk.h>
+
+#include "paintable.h"
+
+static GtkWidget *window = NULL;
+
+/* First, add the boilerplate for the object itself.
+ * This part would normally go in the header.
+ */
+#define GTK_TYPE_NUCLEAR_MEDIA_STREAM (gtk_nuclear_media_stream_get_type ())
+G_DECLARE_FINAL_TYPE (GtkNuclearMediaStream, gtk_nuclear_media_stream, GTK, NUCLEAR_MEDIA_STREAM, GtkMediaStream)
+
+/* Do a full rotation in 5 seconds.
+ *
+ * We do not save steps here but real timestamps.
+ * GtkMediaStream uses microseconds, so we will do so, too.
+ */
+#define DURATION (5 * G_USEC_PER_SEC)
+
+/* Declare the struct. */
+struct _GtkNuclearMediaStream
+{
+  /* We now inherit from the media stream object. */
+  GtkMediaStream parent_instance;
+
+  /* This variable stores the progress of our video.
+   */
+  gint64 progress;
+
+  /* This variable stores the timestamp of the last
+   * time we updated the progress variable when the
+   * video is currently playing.
+   * This is so that we can always accurately compute the
+   * progress we've had, even if the timeout does not
+   * exactly work.
+   */
+  gint64 last_time;
+
+  /* This variable again holds the ID of the timer that 
+   * updates our progress variable. Nothing changes about
+   * how this works compared to the previous example.
+   */
+  guint source_id;
+};
+
+struct _GtkNuclearMediaStreamClass
+{
+  GObjectClass parent_class;
+};
+
+/* GtkMediaStream is a GdkPaintable. So when we want to display video,
+ * we have to implement the interface, just like in the animation example.
+ */
+static void
+gtk_nuclear_media_stream_snapshot (GdkPaintable *paintable,
+                                   GdkSnapshot  *snapshot,
+                                   double        width,
+                                   double        height)
+{
+  GtkNuclearMediaStream *nuclear = GTK_NUCLEAR_MEDIA_STREAM (paintable);
+
+  /* We call the function from the previous example here. */
+  gtk_nuclear_snapshot (snapshot,
+                        width, height,
+                        2 * G_PI * nuclear->progress / DURATION);
+}
+
+static GdkPaintable *
+gtk_nuclear_media_stream_get_current_image (GdkPaintable *paintable)
+{
+  GtkNuclearMediaStream *nuclear = GTK_NUCLEAR_MEDIA_STREAM (paintable);
+
+  /* Same thing as with the animation */
+  return gtk_nuclear_icon_new (2 * G_PI * nuclear->progress / DURATION);
+}
+
+static GdkPaintableFlags
+gtk_nuclear_media_stream_get_flags (GdkPaintable *paintable)
+{
+  /* And same thing as with the animation over here, too. */
+  return GDK_PAINTABLE_STATIC_SIZE;
+}
+
+static void
+gtk_nuclear_media_stream_paintable_init (GdkPaintableInterface *iface)
+{
+  iface->snapshot = gtk_nuclear_media_stream_snapshot;
+  iface->get_current_image = gtk_nuclear_media_stream_get_current_image;
+  iface->get_flags = gtk_nuclear_media_stream_get_flags;
+}
+
+/* This time, we inherit from GTK_TYPE_MEDIA_STREAM */
+G_DEFINE_TYPE_WITH_CODE (GtkNuclearMediaStream, gtk_nuclear_media_stream, GTK_TYPE_MEDIA_STREAM,
+                         G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
+                                                gtk_nuclear_media_stream_paintable_init))
+
+static gboolean
+gtk_nuclear_media_stream_step (gpointer data)
+{
+  GtkNuclearMediaStream *nuclear = data;
+  gint64 current_time;
+
+  /* Compute the time that has elapsed since the last time we were called
+   * and add it to our current progress.
+   */
+  current_time = g_source_get_time (g_main_current_source ());
+  nuclear->progress += current_time - nuclear->last_time;
+
+  /* Check if we've ended */
+  if (nuclear->progress > DURATION)
+    {
+      if (gtk_media_stream_get_loop (GTK_MEDIA_STREAM (nuclear)))
+        {
+          /* We're looping. So make the progress loop using modulo */
+          nuclear->progress %= DURATION;
+        }
+      else
+        {
+          /* Just make sure we don't overflow */
+          nuclear->progress = DURATION;
+        }
+    }
+
+  /* Update the last time to the current timestamp. */
+  nuclear->last_time = current_time;
+
+  /* Update the timestamp of the media stream */
+  gtk_media_stream_update (GTK_MEDIA_STREAM (nuclear), nuclear->progress);
+
+  /* We also need to invalidate our contents again.
+   * After all, we are a video and not just an audio stream.
+   */
+  gdk_paintable_invalidate_contents (GDK_PAINTABLE (nuclear));
+
+  /* Now check if we have finished playing and if so,
+   * tell the media stream. The media stream will then
+   * call our pause function to pause the stream.
+   */
+  if (nuclear->progress >= DURATION)
+    gtk_media_stream_ended (GTK_MEDIA_STREAM (nuclear));
+
+  /* The timeout function is removed by the pause function,
+   * so we can just always return this value.
+   */
+  return G_SOURCE_CONTINUE;
+}
+
+static gboolean
+gtk_nuclear_media_stream_play (GtkMediaStream *stream)
+{
+  GtkNuclearMediaStream *nuclear = GTK_NUCLEAR_MEDIA_STREAM (stream);
+
+  /* If we're already at the end of the stream, we don't want
+   * to start playing and exit early.
+   */
+  if (nuclear->progress >= DURATION)
+    return FALSE;
+
+  /* This time, we add the source only when we start playing.
+   */
+  nuclear->source_id = g_timeout_add (10,
+                                      gtk_nuclear_media_stream_step,
+                                      nuclear);
+
+  /* We also want to initialize our time, so that we can
+   * do accurate updates.
+   */
+  nuclear->last_time = g_get_monotonic_time ();
+  
+  /* We successfully started playing, so we return TRUE here. */
+  return TRUE;
+}
+
+static void
+gtk_nuclear_media_stream_pause (GtkMediaStream *stream)
+{
+  GtkNuclearMediaStream *nuclear = GTK_NUCLEAR_MEDIA_STREAM (stream);
+
+  /* This function will be called when a playing stream
+   * gets paused.
+   * So we remove the updating source here and set it
+   * back to 0 so that the finalize function doesn't try
+   * to remove it again.
+   */
+  g_source_remove (nuclear->source_id);
+  nuclear->source_id = 0;
+  nuclear->last_time = 0;
+}
+
+static void
+gtk_nuclear_media_stream_seek (GtkMediaStream *stream,
+                               gint64          timestamp)
+{
+  GtkNuclearMediaStream *nuclear = GTK_NUCLEAR_MEDIA_STREAM (stream);
+
+  /* This is optional functionality for media streams,
+   * but not being able to seek is kinda boring.
+   * And it's trivial to implement, so let's go for it.
+   */
+  nuclear->progress = timestamp;
+
+  /* Media streams are asynchronous, so seeking can take a while.
+   * We however don't need that functionality, so we can just
+   * report success.
+   */
+  gtk_media_stream_seek_success (stream);
+
+  /* We also have to update our timestamp and tell the
+   * paintable interface abbout the seek
+   */
+  gtk_media_stream_update (stream, nuclear->progress);
+  gdk_paintable_invalidate_contents (GDK_PAINTABLE (nuclear));
+}
+
+/* Again, we need to implement the finalize function.
+ */
+static void
+gtk_nuclear_media_stream_finalize (GObject *object)
+{
+  GtkNuclearMediaStream *nuclear = GTK_NUCLEAR_MEDIA_STREAM (object);
+
+  /* This time, we need to check if the source exists before
+   * removing it as it only exists while we are playing.
+   */
+  if (nuclear->source_id > 0)
+    g_source_remove (nuclear->source_id);
+
+  /* Don't forget to chain up to the parent class' implementation
+   * of the finalize function.
+   */
+  G_OBJECT_CLASS (gtk_nuclear_media_stream_parent_class)->finalize (object);
+}
+
+/* In the class declaration, we need to implement the media stream */
+static void
+gtk_nuclear_media_stream_class_init (GtkNuclearMediaStreamClass *klass)
+{
+  GtkMediaStreamClass *stream_class = GTK_MEDIA_STREAM_CLASS (klass);
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+
+  stream_class->play = gtk_nuclear_media_stream_play;
+  stream_class->pause = gtk_nuclear_media_stream_pause;
+  stream_class->seek = gtk_nuclear_media_stream_seek;
+
+  gobject_class->finalize = gtk_nuclear_media_stream_finalize;
+}
+
+static void
+gtk_nuclear_media_stream_init (GtkNuclearMediaStream *nuclear)
+{
+  /* This time, we don't have to add a timer here, because media
+   * streams start paused.
+   *
+   * However, media streams need to tell GTK once they are intialized,
+   * so we do that here.
+   */
+  gtk_media_stream_prepared (GTK_MEDIA_STREAM (nuclear),
+                             FALSE,
+                             TRUE,
+                             TRUE,
+                             DURATION);
+}
+
+/* And finally, we add the simple constructor we declared in the header. */
+GtkMediaStream *
+gtk_nuclear_media_stream_new (void)
+{
+  return g_object_new (GTK_TYPE_NUCLEAR_MEDIA_STREAM, NULL);
+}
+
+GtkWidget *
+do_paintable_mediastream (GtkWidget *do_widget)
+{
+  GtkMediaStream *nuclear;
+  GtkWidget *video;
+
+  if (!window)
+    {
+      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      gtk_window_set_title (GTK_WINDOW (window), "Nuclear MediaStream");
+      gtk_window_set_default_size (GTK_WINDOW (window), 300, 200);
+
+      nuclear = gtk_nuclear_media_stream_new ();
+      gtk_media_stream_set_loop (GTK_MEDIA_STREAM (nuclear), TRUE);
+
+      video = gtk_video_new_for_media_stream (nuclear);
+      gtk_container_add (GTK_CONTAINER (window), video);
+
+      g_object_unref (nuclear);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_widget_destroy (window);
+
+  return window;
+}

demos/gtk-demo/popover.ui

@@ -43,32 +43,28 @@
   <object class="GtkWindow" id="window">
     <child>
       <object class="GtkBox" id="box">
-        <property name="visible">1</property>
         <property name="orientation">vertical</property>
         <property name="spacing">6</property>
         <child>
           <object class="GtkEntry" id="entry1">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="primary_icon_name">edit-find</property>
-            <property name="secondary_icon_name">edit-clear</property>
+            <property name="can-focus">1</property>
+            <property name="primary-icon-name">edit-find</property>
+            <property name="secondary-icon-name">edit-clear</property>
           </object>
         </child>
         <child>
           <object class="GtkScrolledWindow" id="scrolledwindow1">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="shadow_type">in</property>
+            <property name="can-focus">1</property>
+            <property name="shadow-type">in</property>
             <property name="max-content-height">100</property>
             <child>
               <object class="GtkTreeView" id="treeview1">
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
+                <property name="can-focus">1</property>
                 <property name="vexpand">1</property>
                 <property name="model">liststore1</property>
-                <property name="headers_visible">0</property>
-                <property name="enable_search">0</property>
-                <property name="search_column">2</property>
+                <property name="headers-visible">0</property>
+                <property name="enable-search">0</property>
+                <property name="search-column">2</property>
                 <child internal-child="selection">
                   <object class="GtkTreeSelection" id="treeview-selection1"/>
                 </child>

demos/gtk-demo/revealer.ui

@@ -2,22 +2,19 @@
 <interface>
   <!-- interface-requires gtk+ 3.6 -->
   <object class="GtkWindow" id="window">
-    <property name="default_width">300</property>
-    <property name="default_height">300</property>
+    <property name="default-width">300</property>
+    <property name="default-height">300</property>
     <property name="title">Revealer</property>
     <child>
       <object class="GtkGrid">
-        <property name="visible">1</property>
         <property name="halign">center</property>
         <property name="valign">center</property>
         <child>
           <object class="GtkRevealer" id="revealer0">
-            <property name="visible">1</property>
             <property name="transition-duration">2000</property>
             <property name="transition-type">crossfade</property>
             <child>
               <object class="GtkImage">
-                <property name="visible">1</property>
                 <property name="icon-name">face-cool-symbolic</property>
                 <property name="icon-size">large</property>
               </object>
@@ -30,12 +27,10 @@
         </child>
         <child>
           <object class="GtkRevealer" id="revealer1">
-            <property name="visible">1</property>
             <property name="transition-duration">2000</property>
             <property name="transition-type">slide-up</property>
             <child>
               <object class="GtkImage">
-                <property name="visible">1</property>
                 <property name="icon-name">face-cool-symbolic</property>
                 <property name="icon-size">large</property>
               </object>
@@ -48,12 +43,10 @@
         </child>
         <child>
           <object class="GtkRevealer" id="revealer2">
-            <property name="visible">1</property>
             <property name="transition-duration">2000</property>
             <property name="transition-type">slide-right</property>
             <child>
               <object class="GtkImage">
-                <property name="visible">1</property>
                 <property name="icon-name">face-cool-symbolic</property>
                 <property name="icon-size">large</property>
               </object>
@@ -66,11 +59,9 @@
         </child>
         <child>
           <object class="GtkRevealer" id="revealer3">
-            <property name="visible">1</property>
             <property name="transition-duration">2000</property>
             <child>
               <object class="GtkImage">
-                <property name="visible">1</property>
                 <property name="icon-name">face-cool-symbolic</property>
                 <property name="icon-size">large</property>
               </object>
@@ -83,12 +74,10 @@
         </child>
         <child>
           <object class="GtkRevealer" id="revealer4">
-            <property name="visible">1</property>
             <property name="transition-duration">2000</property>
             <property name="transition-type">slide-left</property>
             <child>
               <object class="GtkImage">
-                <property name="visible">1</property>
                 <property name="icon-name">face-cool-symbolic</property>
                 <property name="icon-size">large</property>
               </object>
@@ -101,12 +90,10 @@
         </child>
         <child>
           <object class="GtkRevealer" id="revealer5">
-            <property name="visible">1</property>
             <property name="transition-duration">2000</property>
             <property name="transition-type">slide-up</property>
             <child>
               <object class="GtkImage">
-                <property name="visible">1</property>
                 <property name="icon-name">face-cool-symbolic</property>
                 <property name="icon-size">large</property>
               </object>
@@ -119,12 +106,10 @@
         </child>
         <child>
           <object class="GtkRevealer" id="revealer6">
-            <property name="visible">1</property>
             <property name="transition-duration">2000</property>
             <property name="transition-type">slide-right</property>
             <child>
               <object class="GtkImage">
-                <property name="visible">1</property>
                 <property name="icon-name">face-cool-symbolic</property>
                 <property name="icon-size">large</property>
               </object>
@@ -137,11 +122,9 @@
         </child>
         <child>
           <object class="GtkRevealer" id="revealer7">
-            <property name="visible">1</property>
             <property name="transition-duration">2000</property>
             <child>
               <object class="GtkImage">
-                <property name="visible">1</property>
                 <property name="icon-name">face-cool-symbolic</property>
                 <property name="icon-size">large</property>
               </object>
@@ -154,12 +137,10 @@
         </child>
         <child>
           <object class="GtkRevealer" id="revealer8">
-            <property name="visible">1</property>
             <property name="transition-duration">2000</property>
             <property name="transition-type">slide-left</property>
             <child>
               <object class="GtkImage">
-                <property name="visible">1</property>
                 <property name="icon-name">face-cool-symbolic</property>
                 <property name="icon-size">large</property>
               </object>

demos/gtk-demo/scale.ui

@@ -23,52 +23,56 @@
     <property name="title" translatable="yes">Scales</property>
     <child>
       <object class="GtkGrid" id="grid1">
-        <property name="visible">1</property>
         <property name="row-spacing">10</property>
         <property name="column-spacing">10</property>
         <property name="margin">20</property>
         <child>
-          <object class="GtkLabel">
-            <property name="visible">1</property>
+          <object class="GtkLabel" id="label_plain">
             <property name="label">Plain</property>
             <property name="xalign">0</property>
+            <accessibility>
+              <relation type="label-for" target="scale_plain"/>
+            </accessibility>
           </object>
           <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">0</property>
           </packing>
         </child>
         <child>
-          <object class="GtkScale">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
+          <object class="GtkScale" id="scale_plain">
+            <property name="can-focus">1</property>
             <property name="width-request">200</property>
-            <property name="draw_value">0</property>
+            <property name="draw-value">0</property>
             <property name="adjustment">adjustment1</property>
             <property name="hexpand">1</property>
+            <accessibility>
+              <relation type="labelled-by" target="label_plain"/>
+            </accessibility>
           </object>
           <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">0</property>
           </packing>
         </child>
         <child>
-          <object class="GtkLabel">
-            <property name="visible">1</property>
+          <object class="GtkLabel" id="label_marks">
             <property name="label">Marks</property>
             <property name="xalign">0</property>
+            <accessibility>
+              <relation type="label-for" target="scale_marks"/>
+            </accessibility>
           </object>
           <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">1</property>
           </packing>
         </child>
         <child>
-          <object class="GtkScale">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
+          <object class="GtkScale" id="scale_marks">
+            <property name="can-focus">1</property>
             <property name="width-request">200</property>
-            <property name="draw_value">0</property>
+            <property name="draw-value">0</property>
             <property name="adjustment">adjustment2</property>
             <property name="hexpand">1</property>
             <marks>
@@ -78,32 +82,39 @@
               <mark value="3" position="bottom"></mark>
               <mark value="4" position="bottom"></mark>
             </marks>
+            <accessibility>
+              <relation type="labelled-by" target="label_marks"/>
+            </accessibility>
           </object>
           <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">1</property>
           </packing>
         </child>
         <child>
-          <object class="GtkLabel">
-            <property name="visible">1</property>
+          <object class="GtkLabel" id="label_discrete">
             <property name="label">Discrete</property>
             <property name="xalign">0</property>
+            <accessibility>
+              <relation type="label-for" target="scale_discrete"/>
+            </accessibility>
           </object>
           <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">2</property>
           </packing>
         </child>
         <child>
-          <object class="GtkScale">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
+          <object class="GtkScale" id="scale_discrete">
+            <property name="can-focus">1</property>
             <property name="width-request">200</property>
             <property name="round-digits">0</property>
-            <property name="draw_value">0</property>
+            <property name="draw-value">0</property>
             <property name="adjustment">adjustment3</property>
             <property name="hexpand">1</property>
+            <accessibility>
+              <relation type="labelled-by" target="label_discrete"/>
+            </accessibility>
             <marks>
               <mark value="0" position="bottom"></mark>
               <mark value="1" position="bottom"></mark>
@@ -113,8 +124,8 @@
             </marks>
           </object>
           <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">2</property>
           </packing>
         </child>
       </object>

demos/gtk-demo/shortcuts-boxes.ui

@@ -1,104 +1,79 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <!-- interface-requires gtk+ 3.17 -->
-
   <object class="GtkShortcutsWindow" id="shortcuts-boxes">
     <property name="modal">1</property>
-    
     <child>
       <object class="GtkShortcutsSection">
-        <property name="visible">1</property>
         <property name="section-name">shortcuts</property>
         <property name="max-height">12</property>
-
         <!-- Overview shortcuts -->
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Overview</property>
             <property name="view">overview</property>
-
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">F1</property>
                 <property name="title" translatable="yes">Help</property>
               </object>
             </child>
-
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;Ctrl&gt;n</property>
                 <property name="title" translatable="yes">Create a new box</property>
               </object>
             </child>
-
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;Ctrl&gt;f</property>
                 <property name="title" translatable="yes">Search</property>
               </object>
             </child>
-
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;Ctrl&gt;k</property>
                 <property name="title" translatable="yes">Keyboard shortcuts</property>
               </object>
             </child>
-
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;Ctrl&gt;q</property>
                 <property name="title" translatable="yes">Close Window/Quit Boxes</property>
               </object>
             </child>
           </object>
         </child>
-
         <!-- Wizard and Properties shortcuts -->
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Box Creation and Properties</property>
             <property name="view">wizard</property>
-
             <!-- LTR -->
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="direction">ltr</property>
                 <property name="accelerator">&lt;Alt&gt;Right</property>
                 <property name="title" translatable="yes">Switch to the next page</property>
               </object>
             </child>
-
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="direction">ltr</property>
                 <property name="accelerator">&lt;Alt&gt;Left</property>
                 <property name="title" translatable="yes">Switch to the previous page</property>
               </object>
             </child>
-
             <!-- RTL -->
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="direction">rtl</property>
                 <property name="accelerator">&lt;Alt&gt;Left</property>
                 <property name="title" translatable="yes">Switch to the next page</property>
               </object>
             </child>
-
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="direction">rtl</property>
                 <property name="accelerator">&lt;Alt&gt;Right</property>
                 <property name="title" translatable="yes">Switch to the previous page</property>
@@ -106,62 +81,48 @@
             </child>
           </object>
         </child>
-
         <!-- Display shortcuts -->
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Box Display</property>
             <property name="view">display</property>
-
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">Control_L+Alt_L</property>
                 <property name="title" translatable="yes">Grab/Ungrab keyboard</property>
               </object>
             </child>
-
             <!-- LTR -->
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="direction">ltr</property>
                 <property name="accelerator">&lt;Alt&gt;Left</property>
                 <property name="title" translatable="yes">Back to overview</property>
               </object>
             </child>
-
             <!-- RTL -->
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="direction">rtl</property>
                 <property name="accelerator">&lt;Alt&gt;Right</property>
                 <property name="title" translatable="yes">Back to overview</property>
               </object>
             </child>
-
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;Ctrl&gt;q</property>
                 <property name="title" translatable="yes">Close window/Quit Boxes</property>
               </object>
             </child>
-
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">F11</property>
                 <property name="title" translatable="yes">Fullscreen/Restore from fullscreen</property>
               </object>
             </child>
           </object>
         </child>
-
       </object>
     </child>
   </object>
-
 </interface>

demos/gtk-demo/shortcuts-builder.ui

@@ -1,49 +1,41 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <!-- interface-requires gtk+ 3.17 -->
-
   <object class="GtkShortcutsWindow" id="shortcuts-builder">
     <property name="modal">1</property>
     <child>
       <object class="GtkShortcutsSection">
-        <property name="visible">1</property>
         <property name="section-name">editor</property>
         <property name="title" translatable="yes">Editor Shortcuts</property>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">General</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="title" translatable="yes">Global Search</property>
                 <property name="accelerator">&lt;ctrl&gt;period</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="title" translatable="yes">Preferences</property>
                 <property name="accelerator">&lt;ctrl&gt;comma</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="title" translatable="yes">Command Bar</property>
                 <property name="accelerator">&lt;ctrl&gt;Return</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="title" translatable="yes">Terminal</property>
                 <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;t</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="title" translatable="yes">Keyboard Shortcuts</property>
                 <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;question</property>
               </object>
@@ -52,25 +44,21 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Panels</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="title" translatable="yes">Toggle left panel</property>
                 <property name="accelerator">F9</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="title" translatable="yes">Toggle right panel</property>
                 <property name="accelerator">&lt;shift&gt;F9</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="title" translatable="yes">Toggle bottom panel</property>
                 <property name="accelerator">&lt;ctrl&gt;F9</property>
               </object>
@@ -79,18 +67,15 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Touchpad gestures</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="shortcut-type">gesture-two-finger-swipe-right</property>
                 <property name="title" translatable="yes">Switch to the next document</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="shortcut-type">gesture-two-finger-swipe-left</property>
                 <property name="title" translatable="yes">Switch to the previous document</property>
               </object>
@@ -99,46 +84,39 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Files</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;n</property>
                 <property name="title" translatable="yes">Create new document</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;o</property>
                 <property name="title" translatable="yes">Open a document</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;s</property>
                 <property name="title" translatable="yes">Save the document</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;w</property>
                 <property name="title" translatable="yes">Close the document</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;&lt;alt&gt;Page_Down</property>
                 <property name="title" translatable="yes">Switch to the next document</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;&lt;alt&gt;Page_Up</property>
                 <property name="title" translatable="yes">Switch to the previous document</property>
               </object>
@@ -147,32 +125,27 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Find and replace</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;f</property>
                 <property name="title" translatable="yes">Find</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;g</property>
                 <property name="title" translatable="yes">Find the next match</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;g</property>
                 <property name="title" translatable="yes">Find the previous match</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;k</property>
                 <property name="title" translatable="yes">Clear highlight</property>
               </object>
@@ -181,25 +154,21 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Copy and Paste</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;c</property>
                 <property name="title" translatable="yes">Copy selected text to clipboard</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;x</property>
                 <property name="title" translatable="yes">Cut selected text to clipboard</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;v</property>
                 <property name="title" translatable="yes">Paste text from clipboard</property>
               </object>
@@ -208,18 +177,15 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Undo and Redo</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;z</property>
                 <property name="title" translatable="yes">Undo previous command</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;z</property>
                 <property name="title" translatable="yes">Redo previous command</property>
               </object>
@@ -228,46 +194,39 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Editing</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;a</property>
                 <property name="title" translatable="yes">Increment number at cursor</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;x</property>
                 <property name="title" translatable="yes">Decrement number at cursor</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;j</property>
                 <property name="title" translatable="yes">Join selected lines</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;space</property>
                 <property name="title" translatable="yes">Show completion window</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">Insert</property>
                 <property name="title" translatable="yes">Toggle overwrite</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;&lt;alt&gt;i</property>
                 <property name="title" translatable="yes">Reindent line</property>
               </object>
@@ -276,74 +235,63 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Navigation</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;alt&gt;n</property>
                 <property name="title" translatable="yes">Move to next error in file</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;alt&gt;p</property>
                 <property name="title" translatable="yes">Move to previous error in file</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;shift&gt;&lt;alt&gt;Left</property>
                 <property name="title" translatable="yes">Move to previous edit location</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;shift&gt;&lt;alt&gt;Right</property>
                 <property name="title" translatable="yes">Move to next edit location</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;alt&gt;period</property>
                 <property name="title" translatable="yes">Jump to definition of symbol</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;alt&gt;&lt;shift&gt;Up</property>
                 <property name="title" translatable="yes">Move sectionport up within the file</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;alt&gt;&lt;shift&gt;Down</property>
                 <property name="title" translatable="yes">Move sectionport down within the file</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;alt&gt;&lt;shift&gt;End</property>
                 <property name="title" translatable="yes">Move sectionport to end of file</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;alt&gt;&lt;shift&gt;Home</property>
                 <property name="title" translatable="yes">Move sectionport to beginning of file</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;percent</property>
                 <property name="title" translatable="yes">Move to matching bracket</property>
               </object>
@@ -352,18 +300,15 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Selections</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;a</property>
                 <property name="title" translatable="yes">Select all</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;backslash</property>
                 <property name="title" translatable="yes">Unselect all</property>
               </object>
@@ -374,45 +319,38 @@
     </child>
     <child>
       <object class="GtkShortcutsSection">
-        <property name="visible">1</property>
         <property name="max-height">16</property>
         <property name="section-name">terminal</property>
         <property name="title" translatable="yes">Terminal Shortcuts</property>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">General</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="title" translatable="yes">Global Search</property>
                 <property name="accelerator">&lt;ctrl&gt;period</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="title" translatable="yes">Preferences</property>
                 <property name="accelerator">&lt;ctrl&gt;comma</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="title" translatable="yes">Command Bar</property>
                 <property name="accelerator">&lt;ctrl&gt;Return</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="title" translatable="yes">Terminal</property>
                 <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;t</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="title" translatable="yes">Keyboard Shortcuts</property>
                 <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;question</property>
               </object>
@@ -421,18 +359,15 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Copy and Paste</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;c</property>
                 <property name="title" translatable="yes">Copy selected text to clipboard</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;&lt;shift&gt;v</property>
                 <property name="title" translatable="yes">Paste text from clipboard</property>
               </object>
@@ -441,122 +376,98 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Switching</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;alt&gt;1...9</property>
                 <property name="title" translatable="yes">Switch to n-th tab</property>
               </object>
             </child>
           </object>
         </child>
-
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
-            <property name="title" translatable="yes">'Special' combinations</property>
-
+            <property name="title" translatable="yes">&apos;Special&apos; combinations</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">t+t</property>
                 <property name="title" translatable="yes">You want tea ?</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;shift&gt;&lt;ctrl&gt;</property>
                 <property name="title" translatable="yes">Shift Control</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;&amp;&lt;ctrl&gt;</property>
                 <property name="title" translatable="yes">Control Control</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">Control_L&amp;Control_R</property>
                 <property name="title" translatable="yes">Left and right control</property>
               </object>
             </child>
-
           </object>
         </child>
-
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">All gestures</property>
-
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="shortcut-type">gesture-pinch</property>
                 <property name="title" translatable="yes">A stock pinch gesture</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="shortcut-type">gesture-stretch</property>
                 <property name="title" translatable="yes">A stock stretch gesture</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="shortcut-type">gesture-rotate-clockwise</property>
                 <property name="title" translatable="yes">A stock rotation gesture</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="shortcut-type">gesture-rotate-counterclockwise</property>
                 <property name="title" translatable="yes">A stock rotation gesture</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="shortcut-type">gesture-two-finger-swipe-left</property>
                 <property name="title" translatable="yes">A stock swipe gesture</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="shortcut-type">gesture-two-finger-swipe-right</property>
                 <property name="title" translatable="yes">A stock swipe gesture</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="shortcut-type">gesture-swipe-left</property>
                 <property name="title" translatable="yes">A stock swipe gesture</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="shortcut-type">gesture-swipe-right</property>
                 <property name="title" translatable="yes">A stock swipe gesture</property>
               </object>
             </child>
-
           </object>
         </child>
-
       </object>
     </child>
   </object>
-
 </interface>

demos/gtk-demo/shortcuts-clocks.ui

@@ -1,42 +1,35 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <!-- interface-requires gtk+ 3.17 -->
-
   <object class="GtkShortcutsWindow" id="shortcuts-clocks">
     <property name="modal">1</property>
     <child>
       <object class="GtkShortcutsSection">
-        <property name="visible">1</property>
         <property name="section-name">shortcuts</property>
         <property name="max-height">10</property>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">General</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;Page_Down</property>
                 <property name="title" translatable="yes">Go to the next section</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;Page_Up</property>
                 <property name="title" translatable="yes">Go to the previous section</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;alt&gt;Q</property>
                 <property name="title" translatable="yes">Quit</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;alt&gt;Right</property>
                 <property name="direction">ltr</property>
                 <property name="title" translatable="yes">Forward</property>
@@ -44,7 +37,6 @@
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;Left</property>
                 <property name="direction">ltr</property>
                 <property name="title" translatable="yes">Back</property>
@@ -52,7 +44,6 @@
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;alt&gt;Left</property>
                 <property name="direction">rtl</property>
                 <property name="title" translatable="yes">Forward</property>
@@ -60,7 +51,6 @@
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;Right</property>
                 <property name="direction">rtl</property>
                 <property name="title" translatable="yes">Back</property>
@@ -70,19 +60,16 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="view">world</property>
             <property name="title" translatable="yes">World Clocks</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;N</property>
                 <property name="title" translatable="yes">Add a world clock</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;S</property>
                 <property name="title" translatable="yes">Select world clocks</property>
               </object>
@@ -91,19 +78,16 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="view">alarm</property>
             <property name="title" translatable="yes">Alarm</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;N</property>
                 <property name="title" translatable="yes">Add an alarm</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;S</property>
                 <property name="title" translatable="yes">Select alarms</property>
               </object>
@@ -112,26 +96,22 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="view">stopwatch</property>
             <property name="title" translatable="yes">Stopwatch</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">Return space</property>
                 <property name="title" translatable="yes">Start / Stop / Continue</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">L</property>
                 <property name="title" translatable="yes">Lap</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">Delete</property>
                 <property name="title" translatable="yes">Reset</property>
               </object>
@@ -140,19 +120,16 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="view">timer</property>
             <property name="title" translatable="yes">Timer</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">Return space</property>
                 <property name="title" translatable="yes">Start / Stop / Pause</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">Delete</property>
                 <property name="title" translatable="yes">Reset</property>
               </object>
@@ -162,5 +139,4 @@
       </object>
     </child>
   </object>
-
 </interface>

demos/gtk-demo/shortcuts-gedit.ui

@@ -1,28 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <!-- interface-requires gtk+ 3.17 -->
-
   <object class="GtkShortcutsWindow" id="shortcuts-gedit">
     <property name="modal">1</property>
     <child>
       <object class="GtkShortcutsSection">
-        <property name="visible">1</property>
         <property name="section-name">shortcuts</property>
         <property name="max-height">12</property>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Touchpad gestures</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="shortcut-type">gesture-two-finger-swipe-right</property>
                 <property name="title" translatable="yes">Switch to the next document</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="shortcut-type">gesture-two-finger-swipe-left</property>
                 <property name="title" translatable="yes">Switch to the previous document</property>
               </object>
@@ -31,46 +26,39 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Documents</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;N</property>
                 <property name="title" translatable="yes">Create new document</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;O</property>
                 <property name="title" translatable="yes">Open a document</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;S</property>
                 <property name="title" translatable="yes">Save the document</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;W</property>
                 <property name="title" translatable="yes">Close the document</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;&lt;Alt&gt;Page_Down</property>
                 <property name="title" translatable="yes">Switch to the next document</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;&lt;Alt&gt;Page_Up</property>
                 <property name="title" translatable="yes">Switch to the previous document</property>
               </object>
@@ -79,46 +67,39 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Find and Replace</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;F</property>
                 <property name="title" translatable="yes">Find</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;G</property>
                 <property name="title" translatable="yes">Find the next match</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;&lt;Shift&gt;G</property>
                 <property name="title" translatable="yes">Find the previous match</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;H</property>
                 <property name="title" translatable="yes">Find and Replace</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;&lt;Shift&gt;K</property>
                 <property name="title" translatable="yes">Clear highlight</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;I</property>
                 <property name="title" translatable="yes">Go to line</property>
               </object>
@@ -127,11 +108,9 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Tools</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;shift&gt;F7</property>
                 <property name="title" translatable="yes">Check spelling</property>
               </object>
@@ -140,25 +119,21 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title" translatable="yes">Miscellaneous</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">F11</property>
                 <property name="title" translatable="yes">Fullscreen on / off</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;ctrl&gt;P</property>
                 <property name="title" translatable="yes">Print the document</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">Insert</property>
                 <property name="title" translatable="yes">Toggle insert / overwrite</property>
               </object>
@@ -168,5 +143,4 @@
       </object>
     </child>
   </object>
-
 </interface>

demos/gtk-demo/shortcuts.ui

@@ -1,60 +1,51 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <!-- interface-requires gtk+ 3.17 -->
-
   <object class="GtkWindow" id="window1">
     <property name="title" translatable="yes">Shortcuts</property>
     <child>
       <object class="GtkBox">
-        <property name="visible">1</property>
         <property name="orientation">vertical</property>
         <property name="margin">50</property>
         <property name="spacing">10</property>
         <child>
           <object class="GtkButton">
-            <property name="visible">1</property>
             <property name="label">Builder</property>
             <signal name="clicked" handler="builder_shortcuts" swapped="1" object="window1"/>
           </object>
         </child>
         <child>
           <object class="GtkButton">
-            <property name="visible">1</property>
             <property name="label">GEdit</property>
             <signal name="clicked" handler="gedit_shortcuts" swapped="1" object="window1"/>
           </object>
         </child>
         <child>
           <object class="GtkButton">
-            <property name="visible">1</property>
             <property name="label">Clocks - All</property>
             <signal name="clicked" handler="clocks_shortcuts" swapped="1" object="window1"/>
           </object>
         </child>
         <child>
           <object class="GtkButton">
-            <property name="visible">1</property>
             <property name="label">Clocks - Stopwatch</property>
             <signal name="clicked" handler="clocks_shortcuts_stopwatch" swapped="1" object="window1"/>
           </object>
         </child>
         <child>
           <object class="GtkButton">
-            <property name="visible">1</property>
             <property name="label">Boxes</property>
             <signal name="clicked" handler="boxes_shortcuts" swapped="1" object="window1"/>
           </object>
         </child>
         <child>
           <object class="GtkButton">
-            <property name="visible">1</property>
             <property name="label">Boxes - Wizard</property>
             <signal name="clicked" handler="boxes_shortcuts_wizard" swapped="1" object="window1"/>
           </object>
         </child>
         <child>
           <object class="GtkButton">
-            <property name="visible">1</property>
             <property name="label">Boxes - Display</property>
             <signal name="clicked" handler="boxes_shortcuts_display" swapped="1" object="window1"/>
           </object>

demos/gtk-demo/spinbutton.ui

@@ -3,189 +3,176 @@
   <object class="GtkAdjustment" id="basic_adjustment">
     <property name="lower">-10000</property>
     <property name="upper">10000</property>
-    <property name="step_increment">0.5</property>
-    <property name="page_increment">100</property>
+    <property name="step-increment">0.5</property>
+    <property name="page-increment">100</property>
   </object>
   <object class="GtkAdjustment" id="hex_adjustment">
     <property name="upper">255</property>
-    <property name="step_increment">1</property>
-    <property name="page_increment">16</property>
+    <property name="step-increment">1</property>
+    <property name="page-increment">16</property>
   </object>
   <object class="GtkAdjustment" id="time_adjustment">
     <property name="upper">1410</property>
-    <property name="step_increment">30</property>
-    <property name="page_increment">60</property>
+    <property name="step-increment">30</property>
+    <property name="page-increment">60</property>
   </object>
   <object class="GtkAdjustment" id="month_adjustment">
     <property name="lower">1</property>
     <property name="upper">12</property>
     <property name="value">1</property>
-    <property name="step_increment">1</property>
-    <property name="page_increment">5</property>
+    <property name="step-increment">1</property>
+    <property name="page-increment">5</property>
   </object>
   <object class="GtkWindow" id="window">
     <property name="title" translatable="yes">Spin Button</property>
     <child>
       <object class="GtkGrid">
-        <property name="visible">1</property>
         <property name="margin">20</property>
         <property name="row-spacing">10</property>
         <property name="column-spacing">10</property>
         <child>
           <object class="GtkLabel">
-            <property name="visible">1</property>
             <property name="label">_Numeric</property>
-            <property name="use_underline">1</property>
-            <property name="mnemonic_widget">basic_spin</property>
+            <property name="use-underline">1</property>
+            <property name="mnemonic-widget">basic_spin</property>
             <property name="xalign">1</property>
           </object>
           <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">0</property>
           </packing>
         </child>
         <child>
           <object class="GtkSpinButton" id="basic_spin">
-            <property name="visible">1</property>
             <property name="halign">start</property>
-            <property name="width_chars">5</property>
+            <property name="width-chars">5</property>
             <property name="adjustment">basic_adjustment</property>
-            <property name="climb_rate">1</property>
+            <property name="climb-rate">1</property>
             <property name="digits">2</property>
             <property name="numeric">1</property>
           </object>
           <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">0</property>
           </packing>
         </child>
         <child>
           <object class="GtkLabel" id="basic_label">
-            <property name="visible">1</property>
-            <property name="width_chars">10</property>
+            <property name="width-chars">10</property>
             <property name="xalign">1</property>
           </object>
           <packing>
-            <property name="left_attach">2</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">2</property>
+            <property name="top-attach">0</property>
           </packing>
         </child>
         <child>
           <object class="GtkLabel">
-            <property name="visible">1</property>
             <property name="label">_Hexadecimal</property>
-            <property name="use_underline">1</property>
-            <property name="mnemonic_widget">hex_spin</property>
+            <property name="use-underline">1</property>
+            <property name="mnemonic-widget">hex_spin</property>
             <property name="xalign">1</property>
           </object>
           <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">1</property>
           </packing>
         </child>
         <child>
           <object class="GtkSpinButton" id="hex_spin">
-            <property name="visible">1</property>
             <property name="halign">start</property>
-            <property name="width_chars">4</property>
+            <property name="width-chars">4</property>
             <property name="adjustment">hex_adjustment</property>
             <signal name="input" handler="hex_spin_input"/>
             <signal name="output" handler="hex_spin_output"/>
             <property name="wrap">1</property>
           </object>
           <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">1</property>
           </packing>
         </child>
         <child>
           <object class="GtkLabel" id="hex_label">
-            <property name="visible">1</property>
-            <property name="width_chars">10</property>
+            <property name="width-chars">10</property>
             <property name="xalign">1</property>
           </object>
           <packing>
-            <property name="left_attach">2</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">2</property>
+            <property name="top-attach">1</property>
           </packing>
         </child>
         <child>
           <object class="GtkLabel">
-            <property name="visible">1</property>
             <property name="label">_Time</property>
-            <property name="use_underline">1</property>
-            <property name="mnemonic_widget">time_spin</property>
+            <property name="use-underline">1</property>
+            <property name="mnemonic-widget">time_spin</property>
             <property name="xalign">1</property>
           </object>
           <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">2</property>
           </packing>
         </child>
         <child>
           <object class="GtkSpinButton" id="time_spin">
-            <property name="visible">1</property>
             <property name="halign">start</property>
-            <property name="width_chars">5</property>
+            <property name="width-chars">5</property>
             <property name="adjustment">time_adjustment</property>
             <signal name="input" handler="time_spin_input"/>
             <signal name="output" handler="time_spin_output"/>
             <property name="wrap">1</property>
           </object>
           <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">2</property>
           </packing>
         </child>
         <child>
           <object class="GtkLabel" id="time_label">
-            <property name="visible">1</property>
-            <property name="width_chars">10</property>
+            <property name="width-chars">10</property>
             <property name="xalign">1</property>
           </object>
           <packing>
-            <property name="left_attach">2</property>
-            <property name="top_attach">2</property>
+            <property name="left-attach">2</property>
+            <property name="top-attach">2</property>
           </packing>
         </child>
         <child>
           <object class="GtkLabel">
-            <property name="visible">1</property>
             <property name="label">_Month</property>
-            <property name="use_underline">1</property>
-            <property name="mnemonic_widget">month_spin</property>
+            <property name="use-underline">1</property>
+            <property name="mnemonic-widget">month_spin</property>
             <property name="xalign">1</property>
           </object>
           <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">3</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">3</property>
           </packing>
         </child>
         <child>
           <object class="GtkSpinButton" id="month_spin">
-            <property name="visible">1</property>
             <property name="halign">start</property>
-            <property name="width_chars">9</property>
+            <property name="width-chars">9</property>
             <signal name="input" handler="month_spin_input"/>
             <signal name="output" handler="month_spin_output"/>
             <property name="adjustment">month_adjustment</property>
             <property name="wrap">1</property>
-            <property name="update_policy">if-valid</property>
+            <property name="update-policy">if-valid</property>
           </object>
           <packing>
-            <property name="left_attach">1</property>
-            <property name="top_attach">3</property>
+            <property name="left-attach">1</property>
+            <property name="top-attach">3</property>
           </packing>
         </child>
         <child>
           <object class="GtkLabel" id="month_label">
-            <property name="visible">1</property>
-            <property name="width_chars">10</property>
+            <property name="width-chars">10</property>
             <property name="xalign">1</property>
           </object>
           <packing>
-            <property name="left_attach">2</property>
-            <property name="top_attach">3</property>
+            <property name="left-attach">2</property>
+            <property name="top-attach">3</property>
           </packing>
         </child>
       </object>

demos/gtk-demo/stack.ui

@@ -5,26 +5,22 @@
     <property name="title" translatable="yes">Stack</property>
     <child>
       <object class="GtkGrid">
-        <property name="visible">1</property>
         <child>
           <object class="GtkStackSwitcher">
-            <property name="visible">1</property>
             <property name="stack">stack</property>
             <property name="halign">center</property>
           </object>
           <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">0</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">0</property>
           </packing>
         </child>
         <child>
           <object class="GtkStack" id="stack">
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
+            <property name="can-focus">1</property>
             <property name="transition-type">crossfade</property>
             <child>
               <object class="GtkImage">
-                <property name="visible">1</property>
                 <property name="margin-top">20</property>
                 <property name="margin-bottom">20</property>
                 <property name="icon-name">gtk3-demo</property>
@@ -37,9 +33,7 @@
             <child>
               <object class="GtkCheckButton">
                 <property name="label" translatable="yes">Page 2</property>
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
-                <property name="draw_indicator">1</property>
+                <property name="can-focus">1</property>
                 <property name="halign">center</property>
                 <property name="valign">center</property>
               </object>
@@ -50,7 +44,6 @@
             </child>
             <child>
               <object class="GtkSpinner">
-                <property name="visible">1</property>
                 <property name="halign">center</property>
                 <property name="valign">center</property>
                 <property name="active">1</property>
@@ -62,8 +55,8 @@
             </child>
           </object>
           <packing>
-            <property name="left_attach">0</property>
-            <property name="top_attach">1</property>
+            <property name="left-attach">0</property>
+            <property name="top-attach">1</property>
           </packing>
         </child>
       </object>

demos/gtk-demo/theming.ui

@@ -5,7 +5,6 @@
     <property name="orientation">vertical</property>
     <child>
       <object class="GtkToolbar">
-        <property name="visible">1</property>
         <property name="hexpand">1</property>
         <property name="show-arrow">0</property>
         <style>
@@ -13,11 +12,10 @@
         </style>
         <child>
           <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
             <property name="label" translatable="yes">Normal</property>
-            <property name="use_underline">1</property>
-            <property name="is_important">1</property>
-            <property name="icon_name">edit-find</property>
+            <property name="use-underline">1</property>
+            <property name="is-important">1</property>
+            <property name="icon-name">edit-find</property>
           </object>
           <packing>
             <property name="homogeneous">1</property>
@@ -25,11 +23,10 @@
         </child>
         <child>
           <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
             <property name="label" translatable="yes">Active</property>
-            <property name="use_underline">1</property>
-            <property name="is_important">1</property>
-            <property name="icon_name">edit-find</property>
+            <property name="use-underline">1</property>
+            <property name="is-important">1</property>
+            <property name="icon-name">edit-find</property>
             <property name="active">1</property>
           </object>
           <packing>
@@ -38,12 +35,11 @@
         </child>
         <child>
           <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
             <property name="sensitive">0</property>
             <property name="label" translatable="yes">Insensitive</property>
-            <property name="use_underline">1</property>
-            <property name="is_important">1</property>
-            <property name="icon_name">edit-find</property>
+            <property name="use-underline">1</property>
+            <property name="is-important">1</property>
+            <property name="icon-name">edit-find</property>
           </object>
           <packing>
             <property name="homogeneous">1</property>
@@ -51,11 +47,10 @@
         </child>
         <child>
           <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
             <property name="label" translatable="yes">Raised</property>
-            <property name="use_underline">1</property>
-            <property name="is_important">1</property>
-            <property name="icon_name">edit-find</property>
+            <property name="use-underline">1</property>
+            <property name="is-important">1</property>
+            <property name="icon-name">edit-find</property>
             <style>
               <class name="raised"/>
             </style>
@@ -66,11 +61,10 @@
         </child>
         <child>
           <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
             <property name="label" translatable="yes">Raised Active</property>
-            <property name="use_underline">1</property>
-            <property name="is_important">1</property>
-            <property name="icon_name">edit-find</property>
+            <property name="use-underline">1</property>
+            <property name="is-important">1</property>
+            <property name="icon-name">edit-find</property>
             <property name="active">1</property>
             <style>
               <class name="raised"/>
@@ -82,12 +76,11 @@
         </child>
         <child>
           <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
             <property name="sensitive">0</property>
             <property name="label" translatable="yes">Insensitive Active</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">edit-find</property>
-            <property name="is_important">1</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">edit-find</property>
+            <property name="is-important">1</property>
             <property name="active">1</property>
           </object>
           <packing>
@@ -96,12 +89,10 @@
         </child>
         <child>
           <object class="GtkToolItem">
-            <property name="visible">1</property>
             <child>
               <object class="GtkEntry" id="entry1">
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
-                <property name="invisible_char">•</property>
+                <property name="can-focus">1</property>
+                <property name="invisible-char">•</property>
                 <property name="placeholder-text" translatable="yes">Search...</property>
                 <property name="secondary-icon-name">edit-find-symbolic</property>
               </object>
@@ -110,11 +101,10 @@
         </child>
         <child>
           <object class="GtkToolItem">
-            <property name="visible">1</property>
             <child>
               <object class="GtkSwitch" id="switch1">
-                <property name="visible">1</property>
-                <property name="can_focus">1</property>
+                <property name="can-focus">1</property>
+                <property name="tooltip_text">Switch it</property>
               </object>
             </child>
           </object>
@@ -123,7 +113,6 @@
     </child>
     <child>
       <object class="GtkBox">
-        <property name="visible">1</property>
         <property name="valign">center</property>
         <property name="halign">center</property>
         <style>
@@ -132,17 +121,15 @@
         <child>
           <object class="GtkButton">
             <property name="label" translatable="yes">Hi, I am a button</property>
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="receives_default">1</property>
+            <property name="can-focus">1</property>
+            <property name="receives-default">1</property>
           </object>
         </child>
         <child>
           <object class="GtkButton">
-            <property name="label" translatable="yes">And I'm another button</property>
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="receives_default">1</property>
+            <property name="label" translatable="yes">And I&apos;m another button</property>
+            <property name="can-focus">1</property>
+            <property name="receives-default">1</property>
           </object>
           <packing>
             <property name="position">1</property>
@@ -151,9 +138,8 @@
         <child>
           <object class="GtkButton">
             <property name="label" translatable="yes">This is a button party!</property>
-            <property name="visible">1</property>
-            <property name="can_focus">1</property>
-            <property name="receives_default">1</property>
+            <property name="can-focus">1</property>
+            <property name="receives-default">1</property>
           </object>
           <packing>
             <property name="position">2</property>
@@ -163,19 +149,16 @@
     </child>
     <child>
       <object class="GtkToolbar">
-        <property name="visible">1</property>
         <property name="hexpand">1</property>
-        <property name="icon_size">1</property>
         <property name="toolbar-style">icons</property>
         <style>
           <class name="inline-toolbar"/>
         </style>
         <child>
           <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
             <property name="label" translatable="yes">Normal</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">list-add-symbolic</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">list-add-symbolic</property>
           </object>
           <packing>
             <property name="homogeneous">1</property>
@@ -183,10 +166,9 @@
         </child>
         <child>
           <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
             <property name="label" translatable="yes">Normal</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">list-add-symbolic</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">list-add-symbolic</property>
           </object>
           <packing>
             <property name="homogeneous">1</property>
@@ -195,8 +177,8 @@
         <child>
           <object class="GtkToggleToolButton">
             <property name="label" translatable="yes">Active</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">list-remove-symbolic</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">list-remove-symbolic</property>
             <property name="active">1</property>
           </object>
           <packing>
@@ -205,10 +187,9 @@
         </child>
         <child>
           <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
             <property name="label" translatable="yes">Active</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">list-remove-symbolic</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">list-remove-symbolic</property>
             <property name="active">1</property>
           </object>
           <packing>
@@ -217,11 +198,10 @@
         </child>
         <child>
           <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
             <property name="sensitive">0</property>
             <property name="label" translatable="yes">Insensitive</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">edit-find-symbolic</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">edit-find-symbolic</property>
           </object>
           <packing>
             <property name="homogeneous">1</property>
@@ -229,11 +209,10 @@
         </child>
         <child>
           <object class="GtkToggleToolButton">
-            <property name="visible">1</property>
             <property name="sensitive">0</property>
             <property name="label" translatable="yes">Insensitive Active</property>
-            <property name="use_underline">1</property>
-            <property name="icon_name">go-up-symbolic</property>
+            <property name="use-underline">1</property>
+            <property name="icon-name">go-up-symbolic</property>
             <property name="active">1</property>
           </object>
           <packing>
@@ -244,12 +223,9 @@
     </child>
     <child>
       <object class="GtkBox">
-        <property name="visible">1</property>
         <property name="spacing">10</property>
-        <property name="orientation">horizontal</property>
         <child>
           <object class="GtkButton">
-            <property name="visible">1</property>
             <property name="label">Plain</property>
             <property name="halign">end</property>
             <property name="hexpand">1</property>
@@ -258,7 +234,6 @@
         </child>
         <child>
           <object class="GtkButton">
-            <property name="visible">1</property>
             <property name="label">Destructive</property>
             <style>
               <class name="destructive-action"/>
@@ -267,7 +242,6 @@
         </child>
         <child>
           <object class="GtkButton">
-            <property name="visible">1</property>
             <property name="label">Suggested</property>
             <style>
               <class name="suggested-action"/>

demos/gtk-demo/toolpalette.c

@@ -1,795 +0,0 @@
-/* Tool Palette
- *
- * A tool palette widget shows groups of toolbar items as a grid of icons
- * or a list of names.
- */
-
-#include <string.h>
-#include <gtk/gtk.h>
-
-static GtkWidget *window = NULL;
-
-static void load_icon_items (GtkToolPalette *palette);
-static void load_toggle_items (GtkToolPalette *palette);
-static void load_special_items (GtkToolPalette *palette);
-
-typedef struct _CanvasItem CanvasItem;
-
-struct _CanvasItem
-{
-  GdkPixbuf *pixbuf;
-  gdouble x, y;
-};
-
-static gboolean drag_data_requested_for_drop = FALSE;
-static CanvasItem *drop_item = NULL;
-static GList *canvas_items = NULL;
-
-/********************************/
-/* ====== Canvas drawing ====== */
-/********************************/
-
-static CanvasItem*
-canvas_item_new (GtkWidget     *widget,
-                 GtkToolButton *button,
-                 gdouble        x,
-                 gdouble        y)
-{
-  CanvasItem *item = NULL;
-  const gchar *icon_name;
-  GdkPixbuf *pixbuf;
-  GtkIconTheme *icon_theme;
-
-  icon_name = gtk_tool_button_get_icon_name (button);
-  icon_theme = gtk_icon_theme_get_for_display (gtk_widget_get_display (widget));
-  pixbuf = gtk_icon_theme_load_icon (icon_theme,
-                                     icon_name,
-                                     48,
-                                     GTK_ICON_LOOKUP_GENERIC_FALLBACK,
-                                     NULL);
-
-  if (pixbuf)
-    {
-      item = g_slice_new0 (CanvasItem);
-      item->pixbuf = pixbuf;
-      item->x = x;
-      item->y = y;
-    }
-
-  return item;
-}
-
-static void
-canvas_item_free (CanvasItem *item)
-{
-  g_object_unref (item->pixbuf);
-  g_slice_free (CanvasItem, item);
-}
-
-static void
-canvas_item_draw (const CanvasItem *item,
-                  cairo_t          *cr,
-                  gboolean          preview)
-{
-  gdouble cx = gdk_pixbuf_get_width (item->pixbuf);
-  gdouble cy = gdk_pixbuf_get_height (item->pixbuf);
-
-  gdk_cairo_set_source_pixbuf (cr,
-                               item->pixbuf,
-                               item->x - cx * 0.5,
-                               item->y - cy * 0.5);
-
-  if (preview)
-    cairo_paint_with_alpha (cr, 0.6);
-  else
-    cairo_paint (cr);
-}
-
-static gboolean
-canvas_draw (GtkWidget *widget,
-             cairo_t   *cr)
-{
-  GList *iter;
-
-  cairo_set_source_rgb (cr, 1, 1, 1);
-  cairo_paint (cr);
-
-  for (iter = canvas_items; iter; iter = iter->next)
-    canvas_item_draw (iter->data, cr, FALSE);
-
-  if (drop_item)
-    canvas_item_draw (drop_item, cr, TRUE);
-
-  return TRUE;
-}
-
-/*****************************/
-/* ====== Palette DnD ====== */
-/*****************************/
-
-static void
-palette_drop_item (GtkToolItem      *drag_item,
-                   GtkToolItemGroup *drop_group,
-                   gint              x,
-                   gint              y)
-{
-  GtkWidget *drag_group = gtk_widget_get_parent (GTK_WIDGET (drag_item));
-  GtkToolItem *drop_item = gtk_tool_item_group_get_drop_item (drop_group, x, y);
-  gint drop_position = -1;
-
-  if (drop_item)
-    drop_position = gtk_tool_item_group_get_item_position (GTK_TOOL_ITEM_GROUP (drop_group), drop_item);
-
-  if (GTK_TOOL_ITEM_GROUP (drag_group) != drop_group)
-    {
-      gboolean homogeneous, expand, fill, new_row;
-
-      g_object_ref (drag_item);
-      gtk_container_child_get (GTK_CONTAINER (drag_group), GTK_WIDGET (drag_item),
-                               "homogeneous", &homogeneous,
-                               "expand", &expand,
-                               "fill", &fill,
-                               "new-row", &new_row,
-                               NULL);
-      gtk_container_remove (GTK_CONTAINER (drag_group), GTK_WIDGET (drag_item));
-      gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (drop_group),
-                                  drag_item, drop_position);
-      gtk_container_child_set (GTK_CONTAINER (drop_group), GTK_WIDGET (drag_item),
-                               "homogeneous", homogeneous,
-                               "expand", expand,
-                               "fill", fill,
-                               "new-row", new_row,
-                               NULL);
-      g_object_unref (drag_item);
-    }
-  else
-    gtk_tool_item_group_set_item_position (GTK_TOOL_ITEM_GROUP (drop_group),
-                                           drag_item, drop_position);
-}
-
-static void
-palette_drop_group (GtkToolPalette   *palette,
-                    GtkToolItemGroup *drag_group,
-                    GtkToolItemGroup *drop_group)
-{
-  gint drop_position = -1;
-
-  if (drop_group)
-    drop_position = gtk_tool_palette_get_group_position (palette, drop_group);
-
-  gtk_tool_palette_set_group_position (palette, drag_group, drop_position);
-}
-
-static void
-palette_drag_data_received (GtkWidget        *widget,
-                            GdkDragContext   *context,
-                            gint              x,
-                            gint              y,
-                            GtkSelectionData *selection,
-                            guint             time,
-                            gpointer          data)
-{
-  GtkAllocation     allocation;
-  GtkToolItemGroup *drop_group = NULL;
-  GtkWidget        *drag_palette = gtk_drag_get_source_widget (context);
-  GtkWidget        *drag_item = NULL;
-
-  while (drag_palette && !GTK_IS_TOOL_PALETTE (drag_palette))
-    drag_palette = gtk_widget_get_parent (drag_palette);
-
-  if (drag_palette)
-    {
-      drag_item = gtk_tool_palette_get_drag_item (GTK_TOOL_PALETTE (drag_palette),
-                                                  selection);
-      drop_group = gtk_tool_palette_get_drop_group (GTK_TOOL_PALETTE (widget),
-                                                    x, y);
-    }
-
-  if (GTK_IS_TOOL_ITEM_GROUP (drag_item))
-    palette_drop_group (GTK_TOOL_PALETTE (drag_palette),
-                        GTK_TOOL_ITEM_GROUP (drag_item),
-                        drop_group);
-  else if (GTK_IS_TOOL_ITEM (drag_item) && drop_group)
-    {
-      gtk_widget_get_allocation (GTK_WIDGET (drop_group), &allocation);
-      palette_drop_item (GTK_TOOL_ITEM (drag_item),
-                         drop_group,
-                         x - allocation.x,
-                         y - allocation.y);
-    }
-}
-
-/********************************/
-/* ====== Passive Canvas ====== */
-/********************************/
-
-static void
-passive_canvas_drag_data_received (GtkWidget        *widget,
-                                   GdkDragContext   *context,
-                                   gint              x,
-                                   gint              y,
-                                   GtkSelectionData *selection,
-                                   guint             time,
-                                   gpointer          data)
-{
-  /* find the tool button, which is the source of this DnD operation */
-
-  GtkWidget *palette = gtk_drag_get_source_widget (context);
-  CanvasItem *canvas_item = NULL;
-  GtkWidget *tool_item = NULL;
-
-  while (palette && !GTK_IS_TOOL_PALETTE (palette))
-    palette = gtk_widget_get_parent (palette);
-
-  if (palette)
-    tool_item = gtk_tool_palette_get_drag_item (GTK_TOOL_PALETTE (palette),
-                                                selection);
-
-  g_assert (NULL == drop_item);
-
-  /* append a new canvas item when a tool button was found */
-
-  if (GTK_IS_TOOL_ITEM (tool_item))
-    canvas_item = canvas_item_new (widget, GTK_TOOL_BUTTON (tool_item), x, y);
-
-  if (canvas_item)
-    {
-      canvas_items = g_list_append (canvas_items, canvas_item);
-      gtk_widget_queue_draw (widget);
-    }
-}
-
-/************************************/
-/* ====== Interactive Canvas ====== */
-/************************************/
-
-static gboolean
-interactive_canvas_drag_motion (GtkWidget      *widget,
-                                GdkDragContext *context,
-                                gint            x,
-                                gint            y,
-                                guint           time,
-                                gpointer        data)
-{
-  if (drop_item)
-    {
-      /* already have a drop indicator - just update position */
-
-      drop_item->x = x;
-      drop_item->y = y;
-
-      gtk_widget_queue_draw (widget);
-      gdk_drag_status (context, GDK_ACTION_COPY, time);
-    }
-  else
-    {
-      /* request DnD data for creating a drop indicator */
-
-      GdkAtom target = gtk_drag_dest_find_target (widget, context, NULL);
-
-      if (!target)
-        return FALSE;
-
-      drag_data_requested_for_drop = FALSE;
-      gtk_drag_get_data (widget, context, target, time);
-    }
-
-  return TRUE;
-}
-
-static void
-interactive_canvas_drag_data_received (GtkWidget        *widget,
-                                       GdkDragContext   *context,
-                                       gint              x,
-                                       gint              y,
-                                       GtkSelectionData *selection,
-                                       guint             time,
-                                       gpointer          data)
-
-{
-  /* find the tool button which is the source of this DnD operation */
-
-  GtkWidget *palette = gtk_drag_get_source_widget (context);
-  GtkWidget *tool_item = NULL;
-  CanvasItem *item;
-
-  while (palette && !GTK_IS_TOOL_PALETTE (palette))
-    palette = gtk_widget_get_parent (palette);
-
-  if (palette)
-    tool_item = gtk_tool_palette_get_drag_item (GTK_TOOL_PALETTE (palette),
-                                                selection);
-
-  /* create a canvas item when a tool button was found */
-
-  g_assert (NULL == drop_item);
-
-  if (!GTK_IS_TOOL_ITEM (tool_item))
-    return;
-
-  if (drop_item)
-    {
-      canvas_item_free (drop_item);
-      drop_item = NULL;
-    }
-
-  item = canvas_item_new (widget, GTK_TOOL_BUTTON (tool_item), x, y);
-
-  /* Either create a new item or just create a preview item, 
-     depending on why the drag data was requested. */
-  if(drag_data_requested_for_drop)
-    {
-      canvas_items = g_list_append (canvas_items, item);
-      drop_item = NULL;
-
-      gtk_drag_finish (context, TRUE, time);
-    } else
-    {
-      drop_item = item;
-      gdk_drag_status (context, GDK_ACTION_COPY, time);
-    }
-
-  gtk_widget_queue_draw (widget);
-}
-
-static gboolean
-interactive_canvas_drag_drop (GtkWidget      *widget,
-                              GdkDragContext *context,
-                              gint            x,
-                              gint            y,
-                              guint           time,
-                              gpointer        data)
-{
-  GdkAtom target = gtk_drag_dest_find_target (widget, context, NULL);
-
-  if (!target)
-    return FALSE;
-
-  drag_data_requested_for_drop = TRUE;
-  gtk_drag_get_data (widget, context, target, time);
-
-  return FALSE;
-}
-
-static void
-interactive_canvas_drag_leave (gpointer data)
-{
-  if (drop_item)
-    {
-      GtkWidget *widget = GTK_WIDGET (data);
-
-      canvas_item_free (drop_item);
-      drop_item = NULL;
-
-      if (widget)
-        gtk_widget_queue_draw (widget);
-    }
-}
-
-static void
-on_combo_orientation_changed (GtkComboBox *combo_box,
-                              gpointer     user_data)
-{
-  GtkToolPalette *palette = GTK_TOOL_PALETTE (user_data);
-  GtkScrolledWindow *sw;
-  GtkTreeModel *model = gtk_combo_box_get_model (combo_box);
-  GtkTreeIter iter;
-  gint val = 0;
-
-  sw = GTK_SCROLLED_WINDOW (gtk_widget_get_parent (GTK_WIDGET (palette)));
-
-  if (!gtk_combo_box_get_active_iter (combo_box, &iter))
-    return;
-
-  gtk_tree_model_get (model, &iter, 1, &val, -1);
-
-  gtk_orientable_set_orientation (GTK_ORIENTABLE (palette), val);
-
-  if (val == GTK_ORIENTATION_HORIZONTAL)
-    gtk_scrolled_window_set_policy (sw, GTK_POLICY_AUTOMATIC, GTK_POLICY_NEVER);
-  else
-    gtk_scrolled_window_set_policy (sw, GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
-}
-
-static void
-on_combo_style_changed (GtkComboBox *combo_box,
-                        gpointer     user_data)
-{
-  GtkToolPalette *palette = GTK_TOOL_PALETTE (user_data);
-  GtkTreeModel *model = gtk_combo_box_get_model (combo_box);
-  GtkTreeIter iter;
-  gint val = 0;
-
-  if (!gtk_combo_box_get_active_iter (combo_box, &iter))
-    return;
-
-  gtk_tree_model_get (model, &iter, 1, &val, -1);
-
-  if (val == -1)
-    gtk_tool_palette_unset_style (palette);
-  else
-    gtk_tool_palette_set_style (palette, val);
-}
-
-GtkWidget *
-do_toolpalette (GtkWidget *do_widget)
-{
-  GtkWidget *box = NULL;
-  GtkWidget *hbox = NULL;
-  GtkWidget *combo_orientation = NULL;
-  GtkListStore *orientation_model = NULL;
-  GtkWidget *combo_style = NULL;
-  GtkListStore *style_model = NULL;
-  GtkCellRenderer *cell_renderer = NULL;
-  GtkTreeIter iter;
-  GtkWidget *palette = NULL;
-  GtkWidget *palette_scroller = NULL;
-  GtkWidget *notebook = NULL;
-  GtkWidget *contents = NULL;
-  GtkWidget *contents_scroller = NULL;
-
-  if (!window)
-    {
-      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
-      gtk_window_set_display (GTK_WINDOW (window),
-                              gtk_widget_get_display (do_widget));
-      gtk_window_set_title (GTK_WINDOW (window), "Tool Palette");
-      gtk_window_set_default_size (GTK_WINDOW (window), 200, 600);
-
-      g_signal_connect (window, "destroy",
-                        G_CALLBACK (gtk_widget_destroyed), &window);
-
-      /* Add widgets to control the ToolPalette appearance: */
-      box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
-      g_object_set (box, "margin", 6, NULL);
-      gtk_container_add (GTK_CONTAINER (window), box);
-
-      /* Orientation combo box: */
-      orientation_model = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_INT);
-      gtk_list_store_append (orientation_model, &iter);
-      gtk_list_store_set (orientation_model, &iter,
-                          0, "Horizontal",
-                          1, GTK_ORIENTATION_HORIZONTAL,
-                          -1);
-      gtk_list_store_append (orientation_model, &iter);
-      gtk_list_store_set (orientation_model, &iter,
-                          0, "Vertical",
-                          1, GTK_ORIENTATION_VERTICAL,
-                          -1);
-
-      combo_orientation =
-        gtk_combo_box_new_with_model (GTK_TREE_MODEL (orientation_model));
-      cell_renderer = gtk_cell_renderer_text_new ();
-      gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo_orientation),
-                                  cell_renderer,
-                                  TRUE);
-      gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combo_orientation),
-                                      cell_renderer,
-                                      "text", 0,
-                                      NULL);
-      gtk_combo_box_set_active_iter (GTK_COMBO_BOX (combo_orientation), &iter);
-      gtk_box_pack_start (GTK_BOX (box), combo_orientation);
-
-      /* Style combo box: */
-      style_model = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_INT);
-      gtk_list_store_append (style_model, &iter);
-      gtk_list_store_set (style_model, &iter,
-                          0, "Text",
-                          1, GTK_TOOLBAR_TEXT,
-                          -1);
-      gtk_list_store_append (style_model, &iter);
-      gtk_list_store_set (style_model, &iter,
-                          0, "Both",
-                          1, GTK_TOOLBAR_BOTH,
-                          -1);
-      gtk_list_store_append (style_model, &iter);
-      gtk_list_store_set (style_model, &iter,
-                          0, "Both: Horizontal",
-                          1, GTK_TOOLBAR_BOTH_HORIZ,
-                          -1);
-      gtk_list_store_append (style_model, &iter);
-      gtk_list_store_set (style_model, &iter,
-                          0, "Icons",
-                          1, GTK_TOOLBAR_ICONS,
-                          -1);
-      gtk_list_store_append (style_model, &iter);
-      gtk_list_store_set (style_model, &iter,
-                          0, "Default",
-                          1, -1,  /* A custom meaning for this demo. */
-                          -1);
-      combo_style = gtk_combo_box_new_with_model (GTK_TREE_MODEL (style_model));
-      cell_renderer = gtk_cell_renderer_text_new ();
-      gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo_style),
-                                  cell_renderer,
-                                  TRUE);
-      gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combo_style),
-                                      cell_renderer,
-                                      "text", 0,
-                                      NULL);
-      gtk_combo_box_set_active_iter (GTK_COMBO_BOX (combo_style), &iter);
-      gtk_box_pack_start (GTK_BOX (box), combo_style);
-
-      /* Add hbox */
-      hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 5);
-      gtk_box_pack_start (GTK_BOX (box), hbox);
-
-      /* Add and fill the ToolPalette: */
-      palette = gtk_tool_palette_new ();
-
-      load_icon_items (GTK_TOOL_PALETTE (palette));
-      load_toggle_items (GTK_TOOL_PALETTE (palette));
-      load_special_items (GTK_TOOL_PALETTE (palette));
-
-      palette_scroller = gtk_scrolled_window_new (NULL, NULL);
-      gtk_widget_set_vexpand (palette_scroller, TRUE);
-      gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (palette_scroller),
-                                      GTK_POLICY_NEVER,
-                                      GTK_POLICY_AUTOMATIC);
-      g_object_set (palette_scroller, "margin", 6, NULL);
-      gtk_widget_set_hexpand (palette_scroller, TRUE);
-
-      gtk_container_add (GTK_CONTAINER (palette_scroller), palette);
-      gtk_container_add (GTK_CONTAINER (hbox), palette_scroller);
-
-      /* Connect signals: */
-      g_signal_connect (combo_orientation, "changed",
-                        G_CALLBACK (on_combo_orientation_changed), palette);
-      g_signal_connect (combo_style, "changed",
-                        G_CALLBACK (on_combo_style_changed), palette);
-
-      /* Keep the widgets in sync: */
-      on_combo_orientation_changed (GTK_COMBO_BOX (combo_orientation), palette);
-
-      /* ===== notebook ===== */
-
-      notebook = gtk_notebook_new ();
-      g_object_set (notebook, "margin", 6, NULL);
-      gtk_box_pack_end (GTK_BOX(hbox), notebook);
-
-      /* ===== DnD for tool items ===== */
-
-      g_signal_connect (palette, "drag-data-received",
-                        G_CALLBACK (palette_drag_data_received), NULL);
-
-      gtk_tool_palette_add_drag_dest (GTK_TOOL_PALETTE (palette),
-                                      palette,
-                                      GTK_DEST_DEFAULT_ALL,
-                                      GTK_TOOL_PALETTE_DRAG_ITEMS |
-                                      GTK_TOOL_PALETTE_DRAG_GROUPS,
-                                      GDK_ACTION_MOVE);
-
-      /* ===== passive DnD dest ===== */
-
-      contents = gtk_drawing_area_new ();
-
-      g_object_connect (contents,
-                        "draw", canvas_draw, NULL,
-                        "drag-data-received", passive_canvas_drag_data_received, NULL,
-                        NULL);
-
-      gtk_tool_palette_add_drag_dest (GTK_TOOL_PALETTE (palette),
-                                      contents,
-                                      GTK_DEST_DEFAULT_ALL,
-                                      GTK_TOOL_PALETTE_DRAG_ITEMS,
-                                      GDK_ACTION_COPY);
-
-      contents_scroller = gtk_scrolled_window_new (NULL, NULL);
-      gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (contents_scroller),
-                                      GTK_POLICY_AUTOMATIC,
-                                      GTK_POLICY_ALWAYS);
-      gtk_container_add (GTK_CONTAINER (contents_scroller), contents);
-
-      gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
-                                contents_scroller,
-                                gtk_label_new ("Passive DnD Mode"));
-      g_object_set (contents_scroller, "margin", 6, NULL);
-
-      /* ===== interactive DnD dest ===== */
-
-      contents = gtk_drawing_area_new ();
-
-      g_object_connect (contents,
-                        "draw", canvas_draw, NULL,
-                        "drag-motion", interactive_canvas_drag_motion, NULL,
-                        "drag-data-received", interactive_canvas_drag_data_received, NULL,
-                        "drag-leave", interactive_canvas_drag_leave, contents,
-                        "drag-drop", interactive_canvas_drag_drop, NULL,
-                        NULL);
-
-      gtk_tool_palette_add_drag_dest (GTK_TOOL_PALETTE (palette),
-                                      contents,
-                                      GTK_DEST_DEFAULT_HIGHLIGHT,
-                                      GTK_TOOL_PALETTE_DRAG_ITEMS,
-                                      GDK_ACTION_COPY);
-
-      contents_scroller = gtk_scrolled_window_new (NULL, NULL);
-      gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (contents_scroller),
-                                      GTK_POLICY_AUTOMATIC,
-                                      GTK_POLICY_ALWAYS);
-      gtk_container_add (GTK_CONTAINER (contents_scroller), contents);
-
-      gtk_notebook_append_page (GTK_NOTEBOOK (notebook), contents_scroller,
-                                gtk_label_new ("Interactive DnD Mode"));
-    }
-
-  if (!gtk_widget_get_visible (window))
-    {
-      gtk_widget_show (window);
-    }
-  else
-    {
-      gtk_widget_destroy (window);
-      window = NULL;
-    }
-
-  return window;
-}
-
-
-static void
-load_icon_items (GtkToolPalette *palette)
-{
-  GList *contexts;
-  GList *l;
-  GtkIconTheme *icon_theme;
-
-  icon_theme = gtk_icon_theme_get_for_display (gtk_widget_get_display (GTK_WIDGET (palette)));
-
-  contexts = gtk_icon_theme_list_contexts (icon_theme);
-  for (l = contexts; l; l = l->next)
-    {
-      gchar *context = l->data;
-      GList *icon_names;
-      GList *ll;
-      const guint max_icons = 10;
-      guint icons_count = 0;
-
-      GtkWidget *group = gtk_tool_item_group_new (context);
-      gtk_container_add (GTK_CONTAINER (palette), group);
-
-      if (g_strcmp0 (context, "Animations") == 0)
-        continue;
-
-      g_message ("Got context '%s'", context);
-      icon_names = gtk_icon_theme_list_icons (icon_theme, context);
-      icon_names = g_list_sort (icon_names, (GCompareFunc) strcmp);
-
-      for (ll = icon_names; ll; ll = ll->next)
-        {
-          GtkToolItem *item;
-          gchar *id = ll->data;
-
-          if (g_str_equal (id, "emblem-desktop"))
-            continue;
-
-          if (g_str_has_suffix (id, "-symbolic"))
-            continue;
-
-          g_message ("Got id '%s'", id);
-
-          item = gtk_tool_button_new (NULL, NULL);
-          gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), id);
-          gtk_tool_item_set_tooltip_text (GTK_TOOL_ITEM (item), id);
-          gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-
-          /* Prevent us having an insane number of icons: */
-          ++icons_count;
-          if(icons_count >= max_icons)
-            break;
-        }
-
-      g_list_free_full (icon_names, g_free);
-    }
-
-  g_list_free_full (contexts, g_free);
-}
-
-static void
-load_toggle_items (GtkToolPalette *palette)
-{
-  GSList *toggle_group = NULL;
-  GtkToolItem *item;
-  GtkWidget *group;
-  char *label;
-  int i;
-
-  group = gtk_tool_item_group_new ("Radio Item");
-  gtk_container_add (GTK_CONTAINER (palette), group);
-
-  for (i = 1; i <= 10; ++i)
-    {
-      label = g_strdup_printf ("#%d", i);
-      item = gtk_radio_tool_button_new (toggle_group);
-      gtk_tool_button_set_label (GTK_TOOL_BUTTON (item), label);
-      g_free (label);
-
-      gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-      toggle_group = gtk_radio_tool_button_get_group (GTK_RADIO_TOOL_BUTTON (item));
-    }
-}
-
-static GtkToolItem *
-create_entry_item (const char *text)
-{
-  GtkToolItem *item;
-  GtkWidget *entry;
-
-  entry = gtk_entry_new ();
-  gtk_entry_set_text (GTK_ENTRY (entry), text);
-  gtk_entry_set_width_chars (GTK_ENTRY (entry), 5);
-
-  item = gtk_tool_item_new ();
-  gtk_container_add (GTK_CONTAINER (item), entry);
-
-  return item;
-}
-
-static void
-load_special_items (GtkToolPalette *palette)
-{
-  GtkToolItem *item;
-  GtkWidget *group;
-  GtkWidget *label_button;
-
-  group = gtk_tool_item_group_new (NULL);
-  label_button = gtk_button_new_with_label ("Advanced Features");
-  gtk_widget_show (label_button);
-  gtk_tool_item_group_set_label_widget (GTK_TOOL_ITEM_GROUP (group),
-                                        label_button);
-  gtk_container_add (GTK_CONTAINER (palette), group);
-
-  item = create_entry_item ("homogeneous=FALSE");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_container_child_set (GTK_CONTAINER (group), GTK_WIDGET (item),
-                           "homogeneous", FALSE, NULL);
-
-  item = create_entry_item ("homogeneous=FALSE, expand=TRUE");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_container_child_set (GTK_CONTAINER (group), GTK_WIDGET (item),
-                           "homogeneous", FALSE, "expand", TRUE,
-                           NULL);
-
-  item = create_entry_item ("homogeneous=FALSE, expand=TRUE, fill=FALSE");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_container_child_set (GTK_CONTAINER (group), GTK_WIDGET (item),
-                           "homogeneous", FALSE, "expand", TRUE,
-                           "fill", FALSE, NULL);
-
-  item = create_entry_item ("homogeneous=FALSE, expand=TRUE, new-row=TRUE");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_container_child_set (GTK_CONTAINER (group), GTK_WIDGET (item),
-                           "homogeneous", FALSE, "expand", TRUE,
-                           "new-row", TRUE, NULL);
-
-  item = gtk_tool_button_new (NULL, NULL);
-  gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "go-up");
-  gtk_tool_item_set_tooltip_text (item, "Show on vertical palettes only");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_tool_item_set_visible_horizontal (item, FALSE);
-
-  item = gtk_tool_button_new (NULL, NULL);
-  gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "go-next");
-  gtk_tool_item_set_tooltip_text (item, "Show on horizontal palettes only");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_tool_item_set_visible_vertical (item, FALSE);
-
-  item = gtk_tool_button_new (NULL, NULL);
-  gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "edit-delete");
-  gtk_tool_item_set_tooltip_text (item, "Do not show at all");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_widget_hide (GTK_WIDGET (item));
-
-  item = gtk_tool_button_new (NULL, NULL);
-  gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "view-fullscreen");
-  gtk_tool_item_set_tooltip_text (item, "Expanded this item");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-  gtk_container_child_set (GTK_CONTAINER (group), GTK_WIDGET (item),
-                           "homogeneous", FALSE,
-                           "expand", TRUE,
-                           NULL);
-
-  item = gtk_tool_button_new (NULL, NULL);
-  gtk_tool_button_set_icon_name (GTK_TOOL_BUTTON (item), "help-browser");
-  gtk_tool_item_set_tooltip_text (item, "A regular item");
-  gtk_tool_item_group_insert (GTK_TOOL_ITEM_GROUP (group), item, -1);
-}

demos/gtk-demo/video_player.c

@@ -0,0 +1,96 @@
+/* Video Player
+ *
+ * This is a simple video player using just GTK widgets.
+ */
+
+#include <gtk/gtk.h>
+
+static GtkWidget *window = NULL;
+
+static void
+open_dialog_response_cb (GtkWidget *dialog,
+                         int        response,
+                         GtkWidget *video)
+{
+  gtk_widget_hide (dialog);
+
+  if (response == GTK_RESPONSE_ACCEPT)
+    {
+      GFile *file;
+
+      file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (dialog));
+      gtk_video_set_file (GTK_VIDEO (video), file);
+      g_object_unref (file);
+    }
+
+  gtk_widget_destroy (dialog);
+}
+
+static void
+open_clicked_cb (GtkWidget *button,
+                 GtkWidget *video)
+{
+  GtkWidget *dialog;
+
+  dialog = gtk_file_chooser_dialog_new ("Select a video",
+                                        GTK_WINDOW (gtk_widget_get_toplevel (button)),
+                                        GTK_FILE_CHOOSER_ACTION_OPEN,
+                                        "_Cancel", GTK_RESPONSE_CANCEL,
+                                        "_Open", GTK_RESPONSE_ACCEPT,
+                                        NULL);
+  gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_ACCEPT);
+  gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
+  g_signal_connect (dialog, "response", G_CALLBACK (open_dialog_response_cb), video);
+  gtk_widget_show (dialog);
+}
+
+static void
+fullscreen_clicked_cb (GtkWidget *button,
+                       gpointer   unused)
+{
+  GtkWidget *window = gtk_widget_get_toplevel (button);
+
+  gtk_window_fullscreen (GTK_WINDOW (window));
+}
+
+GtkWidget *
+do_video_player (GtkWidget *do_widget)
+{
+  GtkWidget *title;
+  GtkWidget *video;
+  GtkWidget *open_button;
+  GtkWidget *fullscreen_button;
+
+  if (!window)
+    {
+      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      gtk_window_set_title (GTK_WINDOW (window), "Video Player");
+      g_signal_connect (window, "destroy",
+                        G_CALLBACK (gtk_widget_destroyed), &window);
+
+      video = gtk_video_new ();
+      gtk_container_add (GTK_CONTAINER (window), video);
+
+      title = gtk_header_bar_new ();
+      gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (title), TRUE);
+      gtk_header_bar_set_title (GTK_HEADER_BAR (title), "Video Player");
+      gtk_window_set_titlebar (GTK_WINDOW (window), title);
+
+      open_button = gtk_button_new_with_mnemonic ("_Open");
+      g_signal_connect (open_button, "clicked", G_CALLBACK (open_clicked_cb), video);
+      gtk_header_bar_pack_start (GTK_HEADER_BAR (title), open_button);
+
+      fullscreen_button = gtk_button_new_from_icon_name ("view-fullscreen-symbolic");
+      g_signal_connect (fullscreen_button, "clicked", G_CALLBACK (fullscreen_clicked_cb), NULL);
+      gtk_header_bar_pack_end (GTK_HEADER_BAR (title), fullscreen_button);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_widget_destroy (window);
+
+  return window;
+}

demos/gtk-demo/widgetbowl.c

@@ -1,13 +1,14 @@
 /* Benchmark/Widgetbowl
  *
- * This demo models the fishbowl demos seen on the web in a GTK way.
- * It's also a neat little tool to see how fast your computer (or
- * your GTK version) is.
+ * This is a version of the Fishbowl demo that instead shows different
+ * kinds of widgets, which is useful for comparing the rendering performance
+ * of theme specifics.
  */
 
 #include <gtk/gtk.h>
 
 #include "gtkfishbowl.h"
+#include "gtkgears.h"
 
 const char *const css =
 ".blurred-button {"
@@ -80,6 +81,28 @@ create_label (void)
   return w;
 }
 
+static GtkWidget *
+create_video (void)
+{
+  GtkMediaStream *stream = gtk_media_file_new_for_resource ("/images/gtk-logo.webm");
+  GtkWidget *w = gtk_image_new_from_paintable (GDK_PAINTABLE (stream));
+  gtk_media_stream_set_loop (stream, TRUE);
+  gtk_media_stream_play (stream);
+  g_object_unref (stream);
+
+  return w;
+}
+
+static GtkWidget *
+create_gears (void)
+{
+  GtkWidget *w = gtk_gears_new ();
+
+  gtk_widget_set_size_request (w, 100, 100);
+
+  return w;
+}
+
 static const struct {
   const char *name;
   GtkWidget * (*create_func) (void);
@@ -91,6 +114,8 @@ static const struct {
   { "Label"     , create_label          },
   { "Spinner"   , create_spinner        },
   { "Spinbutton", create_spinbutton     },
+  { "Video",      create_video          },
+  { "Gears",      create_gears          },
 };
 
 static int selected_widget_type = -1;

demos/icon-browser/iconbrowserwin.c

@@ -467,6 +467,7 @@ icon_browser_window_init (IconBrowserWindow *win)
   setup_image_dnd (win->image3);
   setup_image_dnd (win->image4);
   setup_image_dnd (win->image5);
+  setup_image_dnd (win->image6);
   setup_scalable_image_dnd (win->image6);
 
   win->contexts = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, context_free);

demos/icon-browser/window.ui

@@ -1,10 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <!-- interface-requires gtk+ 3.8 -->
-  <object class="IconStore" id="store">
-  </object>
+  <object class="IconStore" id="store"/>
   <object class="GtkTreeModelFilter" id="filter_model">
-    <property name="child_model">store</property>
+    <property name="child-model">store</property>
   </object>
   <template class="IconBrowserWindow" parent="GtkApplicationWindow">
     <property name="title" translatable="yes">Icon Browser</property>
@@ -13,26 +12,22 @@
     <signal name="key-press-event" handler="key_press_event_cb"/>
     <child type="titlebar">
       <object class="GtkHeaderBar" id="header">
-        <property name="visible">True</property>
         <property name="title" translatable="yes">Icon Browser</property>
-        <property name="show-title-buttons">True</property>
+        <property name="show-title-buttons">1</property>
         <child type="title">
           <object class="GtkBox">
-            <property name="visible">True</property>
             <style>
               <class name="linked"/>
             </style>
             <child>
               <object class="GtkRadioButton" id="normal_radio">
-                <property name="visible">True</property>
-                <property name="draw_indicator">False</property>
+                <property name="draw-indicator">0</property>
                 <property name="label" translatable="yes">Normal</property>
               </object>
             </child>
             <child>
               <object class="GtkRadioButton" id="symbolic_radio">
-                <property name="visible">True</property>
-                <property name="draw_indicator">False</property>
+                <property name="draw-indicator">0</property>
                 <property name="label" translatable="yes">Symbolic</property>
                 <property name="group">normal_radio</property>
                 <signal name="toggled" handler="symbolic_toggled"/>
@@ -42,13 +37,11 @@
         </child>
         <child>
           <object class="GtkToggleButton" id="search">
-            <property name="visible">True</property>
             <style>
               <class name="image-button"/>
             </style>
             <child>
               <object class="GtkImage" id="search-icon">
-                <property name="visible">True</property>
                 <property name="icon-name">edit-find-symbolic</property>
               </object>
             </child>
@@ -61,32 +54,24 @@
     </child>
     <child>
       <object class="GtkBox">
-        <property name="visible">True</property>
-        <property name="orientation">horizontal</property>
         <child>
           <object class="GtkListBox" id="context_list">
-            <property name="visible">True</property>
-            <property name="selection_mode">single</property>
             <signal name="selected-rows-changed" handler="selected_context_changed"/>
           </object>
         </child>
         <child>
           <object class="GtkSeparator">
-            <property name="visible">True</property>
             <property name="orientation">vertical</property>
           </object>
         </child>
         <child>
           <object class="GtkBox" id="content_box">
-            <property name="visible">True</property>
             <property name="orientation">vertical</property>
             <child>
               <object class="GtkSearchBar" id="searchbar">
-                <property name="visible">True</property>
                 <property name="search-mode-enabled" bind-source="search" bind-property="active" bind-flags="bidirectional"/>
                 <child>
                   <object class="GtkSearchEntry" id="searchentry">
-                    <property name="visible">True</property>
                     <signal name="search-changed" handler="search_text_changed"/>
                   </object>
                 </child>
@@ -94,29 +79,24 @@
             </child>
             <child>
               <object class="GtkScrolledWindow" id="sw">
-                <property name="visible">True</property>
-                <property name="expand">True</property>
+                <property name="expand">1</property>
                 <property name="hscrollbar-policy">never</property>
-                <property name="vscrollbar-policy">automatic</property>
                 <child>
                   <object class="GtkIconView" id="list">
-                    <property name="visible">True</property>
                     <property name="model">filter_model</property>
                     <property name="selection-mode">none</property>
-                    <property name="activate-on-single-click">True</property>
+                    <property name="activate-on-single-click">1</property>
                     <signal name="item_activated" handler="item_activated"/>
                     <child>
                       <object class="GtkCellRendererPixbuf" id="cell">
                         <property name="xpad">10</property>
                         <property name="ypad">10</property>
-                        <property name="stock-size">6</property>
                       </object>
                     </child>
                     <child>
                       <object class="GtkCellRendererText" id="text_cell">
                         <property name="xpad">10</property>
                         <property name="ypad">10</property>
-                        <property name="xalign">0.5</property>
                       </object>
                     </child>
                   </object>
@@ -137,24 +117,25 @@
     </widgets>
   </object>
   <object class="GtkDialog" id="details">
-    <property name="modal">True</property>
+    <property name="modal">1</property>
     <property name="use-header-bar">1</property>
-    <property name="resizable">False</property>
-    <signal name="delete-event" handler="gtk_widget_hide_on_delete"/>
+    <property name="resizable">0</property>
+    <property name="hide-on-close">1</property>
     <child internal-child="vbox">
       <object class="GtkBox">
         <child>
           <object class="GtkGrid">
-            <property name="visible">True</property>
             <property name="margin">10</property>
             <property name="row-spacing">18</property>
             <property name="column-spacing">18</property>
             <property name="halign">center</property>
             <child>
               <object class="GtkImage" id="image1">
-                <property name="visible">True</property>
                 <property name="halign">center</property>
                 <property name="valign">end</property>
+                <accessibility>
+                  <relation type="labelled-by" target="label1"/>
+                </accessibility>
               </object>
               <packing>
                 <property name="left-attach">0</property>
@@ -163,9 +144,11 @@
             </child>
             <child>
               <object class="GtkImage" id="image2">
-                <property name="visible">True</property>
                 <property name="halign">center</property>
                 <property name="valign">end</property>
+                <accessibility>
+                  <relation type="labelled-by" target="label2"/>
+                </accessibility>
               </object>
               <packing>
                 <property name="left-attach">1</property>
@@ -174,9 +157,11 @@
             </child>
             <child>
               <object class="GtkImage" id="image3">
-                <property name="visible">True</property>
                 <property name="halign">center</property>
                 <property name="valign">end</property>
+                <accessibility>
+                  <relation type="labelled-by" target="label3"/>
+                </accessibility>
               </object>
               <packing>
                 <property name="left-attach">2</property>
@@ -185,9 +170,11 @@
             </child>
             <child>
               <object class="GtkImage" id="image4">
-                <property name="visible">True</property>
                 <property name="halign">center</property>
                 <property name="valign">end</property>
+                <accessibility>
+                  <relation type="labelled-by" target="label4"/>
+                </accessibility>
               </object>
               <packing>
                 <property name="left-attach">3</property>
@@ -196,9 +183,11 @@
             </child>
             <child>
               <object class="GtkImage" id="image5">
-                <property name="visible">True</property>
                 <property name="halign">center</property>
                 <property name="valign">end</property>
+                <accessibility>
+                  <relation type="labelled-by" target="label5"/>
+                </accessibility>
               </object>
               <packing>
                 <property name="left-attach">4</property>
@@ -207,25 +196,28 @@
             </child>
             <child>
               <object class="GtkImage" id="image6">
-                <property name="visible">True</property>
                 <property name="halign">center</property>
                 <property name="valign">end</property>
+                <accessibility>
+                  <relation type="labelled-by" target="label6"/>
+                </accessibility>
               </object>
               <packing>
                 <property name="left-attach">5</property>
                 <property name="top-attach">1</property>
               </packing>
             </child>
-
             <child>
               <object class="GtkLabel" id="label1">
-                <property name="visible">True</property>
                 <property name="halign">center</property>
                 <property name="valign">baseline</property>
                 <property name="label">16×16</property>
                 <style>
                   <class name="dim-label"/>
                 </style>
+                <accessibility>
+                  <relation type="label-for" target="image1"/>
+                </accessibility>
               </object>
               <packing>
                 <property name="left-attach">0</property>
@@ -234,13 +226,15 @@
             </child>
             <child>
               <object class="GtkLabel" id="label2">
-                <property name="visible">True</property>
                 <property name="halign">center</property>
                 <property name="valign">baseline</property>
                 <property name="label">24×24</property>
                 <style>
                   <class name="dim-label"/>
                 </style>
+                <accessibility>
+                  <relation type="label-for" target="image2"/>
+                </accessibility>
               </object>
               <packing>
                 <property name="left-attach">1</property>
@@ -249,13 +243,15 @@
             </child>
             <child>
               <object class="GtkLabel" id="label3">
-                <property name="visible">True</property>
                 <property name="halign">center</property>
                 <property name="valign">baseline</property>
                 <property name="label">32×32</property>
                 <style>
                   <class name="dim-label"/>
                 </style>
+                <accessibility>
+                  <relation type="label-for" target="image3"/>
+                </accessibility>
               </object>
               <packing>
                 <property name="left-attach">2</property>
@@ -264,13 +260,15 @@
             </child>
             <child>
               <object class="GtkLabel" id="label4">
-                <property name="visible">True</property>
                 <property name="halign">center</property>
                 <property name="valign">baseline</property>
                 <property name="label">48×48</property>
                 <style>
                   <class name="dim-label"/>
                 </style>
+                <accessibility>
+                  <relation type="label-for" target="image4"/>
+                </accessibility>
               </object>
               <packing>
                 <property name="left-attach">3</property>
@@ -279,13 +277,15 @@
             </child>
             <child>
               <object class="GtkLabel" id="label5">
-                <property name="visible">True</property>
                 <property name="halign">center</property>
                 <property name="valign">baseline</property>
                 <property name="label">64×64</property>
                 <style>
                   <class name="dim-label"/>
                 </style>
+                <accessibility>
+                  <relation type="label-for" target="image5"/>
+                </accessibility>
               </object>
               <packing>
                 <property name="left-attach">4</property>
@@ -294,13 +294,15 @@
             </child>
             <child>
               <object class="GtkLabel" id="label6">
-                <property name="visible">True</property>
                 <property name="halign">center</property>
                 <property name="valign">baseline</property>
                 <property name="label">scalable</property>
                 <style>
                   <class name="dim-label"/>
                 </style>
+                <accessibility>
+                  <relation type="label-for" target="image6"/>
+                </accessibility>
               </object>
               <packing>
                 <property name="left-attach">5</property>
@@ -311,7 +313,6 @@
         </child>
         <child>
           <object class="GtkButton">
-            <property name="visible">True</property>
             <property name="label" translatable="yes">Copy to Clipboard</property>
             <property name="halign">center</property>
             <property name="valign">center</property>
@@ -322,8 +323,7 @@
         <child>
           <object class="GtkLabel" id="description">
             <property name="margin">10</property>
-            <property name="visible">True</property>
-            <property name="wrap">True</property>
+            <property name="wrap">1</property>
             <property name="max-width-chars">60</property>
             <property name="valign">start</property>
           </object>

demos/widget-factory/help-overlay.ui

@@ -2,28 +2,23 @@
   <object class="GtkShortcutsWindow" id="help_overlay">
     <child>
       <object class="GtkShortcutsSection">
-        <property name="visible">1</property>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title">General</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">F1</property>
                 <property name="title">Show About Dialog</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;Primary&gt;q</property>
                 <property name="title">Quit</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;Primary&gt;d</property>
                 <property name="title">Switch to dark theme</property>
               </object>
@@ -32,26 +27,22 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title">Traditional</property>
             <property name="view">page2</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;Primary&gt;s</property>
                 <property name="title">Search</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">Delete</property>
                 <property name="title">Delete</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;Primary&gt;b</property>
                 <property name="title">Set background</property>
               </object>
@@ -60,26 +51,22 @@
         </child>
         <child>
           <object class="GtkShortcutsGroup">
-            <property name="visible">1</property>
             <property name="title">Modern</property>
             <property name="view">page3</property>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;Primary&gt;o</property>
                 <property name="title">Open a file</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;Primary&gt;r</property>
                 <property name="title">Start recording</property>
               </object>
             </child>
             <child>
               <object class="GtkShortcutsShortcut">
-                <property name="visible">1</property>
                 <property name="accelerator">&lt;Primary&gt;l</property>
                 <property name="title">Lock or unlock</property>
               </object>

demos/widget-factory/meson.build

@@ -24,3 +24,6 @@ foreach icon_size : ['16x16', '22x22', '24x24', '32x32', '48x48', '256x256', ]
   install_data('data/@0@/gtk4-widget-factory-symbolic.symbolic.png'.format(icon_size),
                install_dir: icons_dir)
 endforeach
+
+# appdata
+install_data('org.gtk.WidgetFactory.appdata.xml', install_dir: gtk_appdatadir)

demos/widget-factory/org.gtk.WidgetFactory.appdata.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop">
+  <id>org.gtk.WidgetFactory.desktop</id>
+  <metadata_license>CC0-1.0</metadata_license>
+  <project_license>LGPL-2.0+</project_license>
+  <name>GTK+ Widget Factory</name>
+  <summary>Program to demonstrate GTK+ functions</summary>
+  <description>
+    <p>
+      GTK+ Widget Factory is a showcase of GTK+ widgets. It was
+      originally created to help theme authors test their creations
+      for completeness.
+    </p>
+  </description>
+  <screenshots>
+    <screenshot>
+      <image>https://static.gnome.org/appdata/gtk4-widget-factory/gtk-widget-factory1.png</image>
+      <caption>Page 1</caption>
+    </screenshot>
+    <screenshot>
+      <image>https://static.gnome.org/appdata/gtk4-widget-factory/gtk-widget-factory2.png</image>
+      <caption>Page 3</caption>
+    </screenshot>
+  </screenshots>
+  <kudos>
+    <kudo>AppMenu</kudo>
+    <kudo>HiDpiIcon</kudo>
+    <kudo>ModernToolkit</kudo>
+  </kudos>
+  <url type="homepage">https://www.gtk.org</url>
+  <translation type="gettext">gtk-4.0</translation>
+  <update_contact>matthias.clasen_at_gmail.com</update_contact>
+  <developer_name>Matthias Clasen and others</developer_name>
+</component>

demos/widget-factory/widget-factory.c

@@ -64,7 +64,7 @@ get_idle (gpointer data)
   GtkApplication *app = gtk_window_get_application (GTK_WINDOW (window));
 
   gtk_widget_set_sensitive (window, TRUE);
-  gdk_window_set_cursor (gtk_widget_get_window (window), NULL);
+  gdk_surface_set_cursor (gtk_widget_get_surface (window), NULL);
   g_application_unmark_busy (G_APPLICATION (app));
 
   return G_SOURCE_REMOVE;
@@ -81,7 +81,7 @@ get_busy (GSimpleAction *action,
 
   g_application_mark_busy (G_APPLICATION (app));
   cursor = gdk_cursor_new_from_name ("wait", NULL);
-  gdk_window_set_cursor (gtk_widget_get_window (window), cursor);
+  gdk_surface_set_cursor (gtk_widget_get_surface (window), cursor);
   g_object_unref (cursor);
   g_timeout_add (5000, get_idle, window);
 

docs/CODING-STYLE

@@ -439,41 +439,91 @@ Public headers should never be included directly:
   #error "Only <gtk/gtk.h> can be included directly."
   #endif
 
-All headers should have inclusion guards (for internal usage)
-and C++ guards:
+Private headers should include the public header first, if one exists:
+
+  #ifndef __GTK_FOO_PRIVATE_H__
+  #define __GTK_FOO_PRIVATE_H__
+
+  #include "gtkfoo.h"
+
+  ...
+
+  #endif /* __GTK_FOO_PRIVATE_H__ */
+
+All headers should have inclusion guards:
 
   #ifndef __GTK_FOO_H__
   #define __GTK_FOO_H__
 
-  #include <gtk/gtk-bar.h>
+  ...
+
+  #endif /* __GTK_FOO_H__ */
+
+You can also use the "once" pragma instead of the classic pre-processor guard:
+
+  #pragma once
+
+Additionally, public headers should use C++ guards around their declarations:
 
   G_BEGIN_DECLS
 
+  GDK_AVAILABLE_IN_ALL
+  GType         gtk_foo_get_type        (void) G_GNUC_CONST;
+
+  GDK_AVAILABLE_IN_ALL
+  GtkWidget *   gtk_foo_new             (void);
+
   ...
 
   G_END_DECLS
 
-  #endif /* __GTK_FOO_H__ */
-
 + Includes
 
-GTK+ source files should never include the global gtk.h header, but
-instead include the individual headers that are needed. Every file must
-include config.h first, then its own header, then other GTK+ headers
-that it needs, then system and third-party headers that it needs.
+GTK+ source files must never include the global gtk.h header; instead, it
+should include the individual headers that are needed.
+
+Every source file must include config.h first, followed by the header matching
+the source file, either the public installed header, or the private header, if
+it exists.
 
-  /* valid */
   #include "config.h"
 
   #include "gtkfoo.h"
 
-  #include "gtkwidget.h"
+Source files should then include project headers, in alphabetical order,
+starting from headers in the current directory; then headers in
+sub-directories; and, finally, in paths relative to the top-level
+directory:
+
+  #include "config.h"
+
+  #include "gtkfooprivate.h"
+
   #include "gtkbutton.h"
+  #include "gtkwidget.h"
 
-  ...
+  #include "a11y/gtkwidgetaccessible.h"
 
+  #include "gdk/gdkwindowprivate.h"
+
+Finally, source files should include the system headers last:
+
+  #include "config.h"
+
+  #include "gtkbarprivate.h"
+
+  #include "gtkcontainerprivate.h"
+
+  #include "a11y/gtkcontaineraccessible.h"
+  #include "a11y/gtkwidgetaccessible.h"
+
+  #include "gdk/gdkwindowprivate.h"
+
+  #include <graphene.h>
   #include <string.h>
 
+Cyclic dependencies should be avoided if at all possible; for instance, you
+could use additional headers to break cycles.
 
 + GObject
 
@@ -484,7 +534,6 @@ Typedef declarations should be placed at the beginning of the file:
 
   typedef struct _GtkFoo          GtkFoo;
   typedef struct _GtkFooClass     GtkFooClass;
-  typedef struct _GtkFooPrivate   GtkFooPrivate;
 
 This includes enumeration types:
 
@@ -499,26 +548,21 @@ And callback types:
   typedef void (* GtkCallback) (GtkWidget *widget,
                                 gpointer   user_data);
 
-Instance structures should only contain the parent type, and optionally a
-pointer to a private data structure, and they should be annotated as
-"private" using the gtk-doc trigraph:
+Instance structures should only contain the parent type:
 
   struct _GtkFoo
   {
-    /*< private >*/
     GtkWidget parent_instance;
-
-    GtkFooPrivate *priv;
   };
 
-The private data pointer is optional and should be omitted in newly
-written classes.
+You should use the G_DECLARE_DERIVABLE_TYPE() and G_DECLARE_FINAL_TYPE()
+macros in newly written headers.
 
-Always use the G_DEFINE_TYPE(), G_DEFINE_TYPE_WITH_PRIVATE(), and
-G_DEFINE_TYPE_WITH_CODE() macros, or their abstract variants
-G_DEFINE_ABSTRACT_TYPE(), G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE(), and
-G_DEFINE_ABSTRACT_TYPE_WITH_CODE(); also, use the similar macros for
-defining interfaces and boxed types.
+Inside your source file, always use the G_DEFINE_TYPE(),
+G_DEFINE_TYPE_WITH_PRIVATE(), and G_DEFINE_TYPE_WITH_CODE() macros, or their
+abstract variants G_DEFINE_ABSTRACT_TYPE(),
+G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE(), and G_DEFINE_ABSTRACT_TYPE_WITH_CODE();
+also, use the similar macros for defining interfaces, quarks, and boxed types.
 
 All the properties should be stored inside the private data structure, which
 is defined inside the source file - or, if needed, inside a private header
@@ -526,14 +570,14 @@ file; the private header filename must end with "private.h" and must not be
 installed.
 
 The private data structure should only be accessed internally either using the
-pointer inside the instance structure, if one is available, or the generated
+pointer inside the instance structure, for legacy code, or the generated
 instance private data getter function for your type. You should never use the
 G_TYPE_INSTANCE_GET_PRIVATE() macro or the g_type_instance_get_private()
 function.
 
 Interface types should always have the dummy typedef for cast purposes:
 
-        typedef struct _GtkFoo              GtkFoo;
+        typedef struct _GtkFoo                  GtkFoo;
 
 The interface structure should have "Interface" postfixed to the dummy typedef:
 
@@ -564,19 +608,16 @@ Inline functions are usually preferable to private macros.
 
 Public macros should not be used unless they evaluate to a constant.
 
-+ Public API
++ Symbol visibility
 
-Avoid exporting variables as public API, since this is cumbersome on some
+Any symbol that is not explicitly annotated using a GDK_AVAILABLE_IN_*
+macro is considered internal, and not exported in the shared library.
+
+Never export variables as public API, since this is cumbersome on some
 platforms. It is always preferable to add getters and setters instead.
 
-All public functions must be listed in the gtk.symbols file.
-
-+ Private API
-
 Non-exported functions that are needed in more than one source file
-should be named "_gtk_...", and declared in a private header file.
-
-Underscore-prefixed functions are never exported.
+should be declared in a private header file.
 
 Non-exported functions that are only needed in one source file
 should be declared static.
@@ -638,4 +679,4 @@ of tabs, etc.
 
 It is ok to update the style of a code block or function when you
 are touching it anyway, but sweeping whitespace changes obscure the
-git history and should be avoided.
+source revision history, and should be avoided.

docs/developers.txt

@@ -26,13 +26,13 @@ Refer to the file widget_system.txt which covers widget flags and the
 resulting invariants in a detailed way.
 
 
-GdkWindow pointers may be NULL in GdkEvents
+GdkSurface pointers may be NULL in GdkEvents
 -------------------------------------------
 
 The notification nature of the signal mechanism might cause events to
-be emitted that have their GdkWindow pointer set to NULL.
+be emitted that have their GdkSurface pointer set to NULL.
 This is due to the fact that certain events need to be emitted after the
-real GdkWindow of a widget is not any longer pertinent.
+real GdkSurface of a widget is not any longer pertinent.
 It's up to the signal handling function (application) to check for the
 window field of the event structure to be != NULL, if it is going to
 perform any operations through Gdk calls on it.
@@ -43,7 +43,7 @@ GDK_SELECTION_CLEAR     GtkWidget::selection_clear_event
 GDK_FOCUS_CHANGE        GtkWidget::focus_in_event
                         GtkWidget::focus_out_event
 
-Events that are assured to have a valid GdkEvent.any.window field are
+Events that are assured to have a valid GdkEvent.any.surface field are
 
 GDK_EXPOSE		GtkWidget::expose_event
 
@@ -51,10 +51,10 @@ GDK_EXPOSE		GtkWidget::expose_event
 Writing Gdk functions
 ---------------------
 
-When writing Gdk functions that operate on GdkWindow structures in any
-meaningful sense, that is casting to a GdkWindowPrivate structure for
-access to fields other then GdkWindow.user_data, the programmer is
-recommended to check for the GdkWindowPrivate.destroyed field to be ==
-FALSE, especially if the GdkWindowPrivate.xwindow field is used.
+When writing Gdk functions that operate on GdkSurface structures in any
+meaningful sense, that is casting to a GdkSurfacePrivate structure for
+access to fields other then GdkSurface.user_data, the programmer is
+recommended to check for the GdkSurfacePrivate.destroyed field to be ==
+FALSE, especially if the GdkSurfacePrivate.xwindow field is used.
 Silent abortion of the Gdk function is the correct behaviour if this
 condition isn't met.

docs/dnd_internals.txt

@@ -81,19 +81,19 @@ GdkAtom          gdk_drag_get_selection (GdkDragContext   *context);
 
 /* Source side */
 
-GdkDragContext * gdk_drag_begin      (GdkWindow      *window,
+GdkDragContext * gdk_drag_begin      (GdkSurface      *window,
 				      GList          *targets,
 				      GdkDragAction   actions);
 gboolean         gdk_drag_get_protocol (guint32          xid,
 					GdkDragProtocol *protocol);
 void             gdk_drag_find_window (GdkDragContext   *context,
-				       GdkWindow       *drag_window,
+				       GdkSurface       *drag_surface,
 			 	       gint             x_root,
 				       gint             y_root,
-				       GdkWindow      **dest_window,
+				       GdkSurface      **dest_surface,
 				       GdkDragProtocol *protocol);
 gboolean        gdk_drag_motion      (GdkDragContext *context,
-				      GdkWindow      *dest_window,
+				      GdkSurface      *dest_surface,
 				      GdkDragProtocol protocol,
 				      gint            x_root, 
 				      gint            y_root,

docs/reference/gdk/gdk4-docs.xml

@@ -45,7 +45,6 @@
     <xi:include href="xml/gdkcontentserializer.xml" />
     <xi:include href="xml/gdkcontentdeserializer.xml" />
     <xi:include href="xml/properties.xml" />
-    <xi:include href="xml/threads.xml" />
     <xi:include href="xml/gdkapplaunchcontext.xml" />
     <xi:include href="xml/pixbufs.xml" />
     <xi:include href="xml/pango_interaction.xml" />
@@ -62,54 +61,6 @@
     <title>Index of deprecated symbols</title>
     <xi:include href="xml/api-index-deprecated.xml"><xi:fallback /></xi:include>
   </index>
-  <index id="api-index-3-0" role="3.0">
-    <title>Index of new symbols in 3.0</title>
-    <xi:include href="xml/api-index-3.0.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-2" role="3.2">
-    <title>Index of new symbols in 3.2</title>
-    <xi:include href="xml/api-index-3.2.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-4" role="3.4">
-    <title>Index of new symbols in 3.4</title>
-    <xi:include href="xml/api-index-3.4.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-6" role="3.6">
-    <title>Index of new symbols in 3.6</title>
-    <xi:include href="xml/api-index-3.6.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-8" role="3.8">
-    <title>Index of new symbols in 3.8</title>
-    <xi:include href="xml/api-index-3.8.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-10" role="3.10">
-    <title>Index of new symbols in 3.10</title>
-    <xi:include href="xml/api-index-3.10.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-12" role="3.12">
-    <title>Index of new symbols in 3.12</title>
-    <xi:include href="xml/api-index-3.12.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-14" role="3.14">
-    <title>Index of new symbols in 3.14</title>
-    <xi:include href="xml/api-index-3.14.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-16" role="3.16">
-    <title>Index of new symbols in 3.16</title>
-    <xi:include href="xml/api-index-3.16.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-18" role="3.18">
-    <title>Index of new symbols in 3.18</title>
-    <xi:include href="xml/api-index-3.18.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-20" role="3.20">
-    <title>Index of new symbols in 3.20</title>
-    <xi:include href="xml/api-index-3.20.xml"><xi:fallback /></xi:include>
-  </index>
-  <index id="api-index-3-22" role="3.22">
-    <title>Index of new symbols in 3.22</title>
-    <xi:include href="xml/api-index-3.22.xml"><xi:fallback /></xi:include>
-  </index>
 
   <xi:include href="xml/annotation-glossary.xml"><xi:fallback /></xi:include>
 

docs/reference/gdk/gdk4-sections.txt

@@ -12,21 +12,7 @@ GDK_WINDOWING_QUARTZ
 GDK_WINDOWING_WAYLAND
 
 <SUBSECTION>
-GDK_VERSION_3_0
-GDK_VERSION_3_2
-GDK_VERSION_3_4
-GDK_VERSION_3_6
-GDK_VERSION_3_8
-GDK_VERSION_3_10
-GDK_VERSION_3_12
-GDK_VERSION_3_14
-GDK_VERSION_3_16
-GDK_VERSION_3_18
-GDK_VERSION_3_20
-GDK_VERSION_3_22
-GDK_VERSION_3_90
-GDK_VERSION_3_92
-GDK_VERSION_3_94
+GDK_VERSION_4_0
 GDK_VERSION_MIN_REQUIRED
 GDK_VERSION_MAX_ALLOWED
 GDK_DISABLE_DEPRECATION_WARNINGS
@@ -61,57 +47,21 @@ gdk_scroll_direction_get_type
 gdk_setting_action_get_type
 gdk_status_get_type
 gdk_visibility_state_get_type
-gdk_window_attributes_type_get_type
-gdk_window_edge_get_type
-gdk_window_hints_get_type
-gdk_window_state_get_type
-gdk_window_type_get_type
-gdk_window_type_hint_get_type
+gdk_surface_attributes_type_get_type
+gdk_surface_edge_get_type
+gdk_surface_hints_get_type
+gdk_surface_state_get_type
+gdk_surface_type_get_type
+gdk_surface_type_hint_get_type
 gdk_wm_decoration_get_type
 gdk_wm_function_get_type
-GDK_AVAILABLE_IN_3_0
-GDK_AVAILABLE_IN_3_10
-GDK_AVAILABLE_IN_3_12
-GDK_AVAILABLE_IN_3_14
-GDK_AVAILABLE_IN_3_16
-GDK_AVAILABLE_IN_3_18
-GDK_AVAILABLE_IN_3_2
-GDK_AVAILABLE_IN_3_20
-GDK_AVAILABLE_IN_3_22
-GDK_AVAILABLE_IN_3_4
-GDK_AVAILABLE_IN_3_6
-GDK_AVAILABLE_IN_3_8
-GDK_AVAILABLE_IN_3_90
-GDK_AVAILABLE_IN_3_92
-GDK_AVAILABLE_IN_3_94
+GDK_AVAILABLE_IN_4_0
 GDK_AVAILABLE_IN_ALL
 GDK_UNAVAILABLE
 GDK_DEPRECATED
 GDK_DEPRECATED_FOR
-GDK_DEPRECATED_IN_3_0
-GDK_DEPRECATED_IN_3_0_FOR
-GDK_DEPRECATED_IN_3_10
-GDK_DEPRECATED_IN_3_10_FOR
-GDK_DEPRECATED_IN_3_12
-GDK_DEPRECATED_IN_3_12_FOR
-GDK_DEPRECATED_IN_3_14
-GDK_DEPRECATED_IN_3_14_FOR
-GDK_DEPRECATED_IN_3_16
-GDK_DEPRECATED_IN_3_16_FOR
-GDK_DEPRECATED_IN_3_18
-GDK_DEPRECATED_IN_3_18_FOR
-GDK_DEPRECATED_IN_3_2
-GDK_DEPRECATED_IN_3_20
-GDK_DEPRECATED_IN_3_20_FOR
-GDK_DEPRECATED_IN_3_22
-GDK_DEPRECATED_IN_3_22_FOR
-GDK_DEPRECATED_IN_3_2_FOR
-GDK_DEPRECATED_IN_3_4
-GDK_DEPRECATED_IN_3_4_FOR
-GDK_DEPRECATED_IN_3_6
-GDK_DEPRECATED_IN_3_6_FOR
-GDK_DEPRECATED_IN_3_8
-GDK_DEPRECATED_IN_3_8_FOR
+GDK_DEPRECATED_IN_4_0
+GDK_DEPRECATED_IN_4_0_FOR
 GDK_VERSION_CUR_STABLE
 GDK_VERSION_PREV_STABLE
 </SECTION>
@@ -135,10 +85,6 @@ gdk_display_put_event
 gdk_display_has_pending
 gdk_display_is_rgba
 gdk_display_is_composited
-gdk_display_supports_cursor_color
-gdk_display_supports_cursor_alpha
-gdk_display_get_default_cursor_size
-gdk_display_get_maximal_cursor_size
 gdk_display_get_default_group
 gdk_display_supports_shapes
 gdk_display_supports_input_shapes
@@ -150,7 +96,7 @@ gdk_display_get_n_monitors
 gdk_display_get_monitor
 gdk_display_get_primary_monitor
 gdk_display_get_monitor_at_point
-gdk_display_get_monitor_at_window
+gdk_display_get_monitor_at_surface
 gdk_display_get_clipboard
 gdk_display_get_primary_clipboard
 gdk_display_get_setting
@@ -223,191 +169,175 @@ gdk_rgba_get_type
 <SECTION>
 <TITLE>Windows</TITLE>
 <FILE>windows</FILE>
-GdkWindow
-GdkWindowType
-GdkWindowClass
-GdkWindowHints
+GdkSurface
+GdkSurfaceType
+GdkSurfaceClass
+GdkSurfaceHints
 GdkGeometry
 GdkGravity
 GdkAnchorHints
-GdkWindowEdge
-GdkWindowTypeHint
-GdkWindowState
-gdk_window_new_toplevel
-gdk_window_new_popup
-gdk_window_new_temp
-gdk_window_new_child
-gdk_window_destroy
-gdk_window_get_window_type
-gdk_window_get_display
-gdk_window_show
-gdk_window_show_unraised
-gdk_window_hide
-gdk_window_is_destroyed
-gdk_window_is_visible
-gdk_window_is_viewable
-gdk_window_is_input_only
-gdk_window_is_shaped
-gdk_window_get_state
-gdk_window_withdraw
-gdk_window_iconify
-gdk_window_deiconify
-gdk_window_stick
-gdk_window_unstick
-gdk_window_maximize
-gdk_window_unmaximize
-gdk_window_fullscreen
-gdk_window_fullscreen_on_monitor
-gdk_window_unfullscreen
+GdkSurfaceEdge
+GdkSurfaceTypeHint
+GdkSurfaceState
+gdk_surface_new_toplevel
+gdk_surface_new_popup
+gdk_surface_new_temp
+gdk_surface_new_child
+gdk_surface_destroy
+gdk_surface_get_surface_type
+gdk_surface_get_display
+gdk_surface_show
+gdk_surface_show_unraised
+gdk_surface_hide
+gdk_surface_is_destroyed
+gdk_surface_is_visible
+gdk_surface_is_viewable
+gdk_surface_is_input_only
+gdk_surface_get_state
+gdk_surface_withdraw
+gdk_surface_iconify
+gdk_surface_deiconify
+gdk_surface_stick
+gdk_surface_unstick
+gdk_surface_maximize
+gdk_surface_unmaximize
+gdk_surface_fullscreen
+gdk_surface_fullscreen_on_monitor
+gdk_surface_unfullscreen
 GdkFullscreenMode
-gdk_window_get_fullscreen_mode
-gdk_window_set_fullscreen_mode
-gdk_window_set_keep_above
-gdk_window_set_keep_below
-gdk_window_set_opacity
-gdk_window_set_pass_through
-gdk_window_get_pass_through
-gdk_window_move
-gdk_window_resize
-gdk_window_move_resize
-gdk_window_scroll
-gdk_window_move_region
-gdk_window_has_native
-gdk_window_raise
-gdk_window_lower
-gdk_window_restack
-gdk_window_focus
-gdk_window_register_dnd
-gdk_window_begin_resize_drag
-gdk_window_begin_resize_drag_for_device
-gdk_window_begin_move_drag
-gdk_window_begin_move_drag_for_device
-gdk_window_show_window_menu
-gdk_window_constrain_size
-gdk_window_beep
-gdk_window_get_scale_factor
-gdk_window_set_opaque_region
-gdk_window_create_gl_context
-gdk_window_create_vulkan_context
+gdk_surface_get_fullscreen_mode
+gdk_surface_set_fullscreen_mode
+gdk_surface_set_keep_above
+gdk_surface_set_keep_below
+gdk_surface_set_opacity
+gdk_surface_set_pass_through
+gdk_surface_get_pass_through
+gdk_surface_move
+gdk_surface_resize
+gdk_surface_move_resize
+gdk_surface_has_native
+gdk_surface_raise
+gdk_surface_lower
+gdk_surface_restack
+gdk_surface_focus
+gdk_surface_register_dnd
+gdk_surface_begin_resize_drag
+gdk_surface_begin_resize_drag_for_device
+gdk_surface_begin_move_drag
+gdk_surface_begin_move_drag_for_device
+gdk_surface_show_window_menu
+gdk_surface_constrain_size
+gdk_surface_beep
+gdk_surface_get_scale_factor
+gdk_surface_set_opaque_region
+gdk_surface_create_gl_context
+gdk_surface_create_vulkan_context
 
 <SUBSECTION>
-gdk_window_get_clip_region
-gdk_window_begin_draw_frame
-gdk_window_end_draw_frame
-gdk_window_get_visible_region
+gdk_surface_begin_draw_frame
+gdk_surface_end_draw_frame
 
 <SUBSECTION>
-gdk_window_invalidate_rect
-gdk_window_invalidate_region
-GdkWindowChildFunc
-gdk_window_invalidate_maybe_recurse
-gdk_window_get_update_area
-gdk_window_freeze_updates
-gdk_window_thaw_updates
-gdk_window_get_frame_clock
+gdk_surface_invalidate_rect
+gdk_surface_invalidate_region
+gdk_surface_freeze_updates
+gdk_surface_thaw_updates
+gdk_surface_get_frame_clock
 
 <SUBSECTION>
-gdk_window_set_user_data
-gdk_window_set_accept_focus
-gdk_window_get_accept_focus
-gdk_window_set_focus_on_map
-gdk_window_get_focus_on_map
-gdk_window_add_filter
-gdk_window_remove_filter
-GdkFilterFunc
-GdkFilterReturn
-GdkXEvent
-gdk_window_shape_combine_region
-gdk_window_set_child_shapes
-gdk_window_merge_child_shapes
-gdk_window_input_shape_combine_region
-gdk_window_set_child_input_shapes
-gdk_window_merge_child_input_shapes
-gdk_window_set_title
+gdk_surface_set_user_data
+gdk_surface_set_accept_focus
+gdk_surface_get_accept_focus
+gdk_surface_set_focus_on_map
+gdk_surface_get_focus_on_map
+gdk_surface_input_shape_combine_region
+gdk_surface_set_child_input_shapes
+gdk_surface_merge_child_input_shapes
+gdk_surface_set_title
 GDK_PARENT_RELATIVE
-gdk_window_set_cursor
-gdk_window_get_cursor
-gdk_window_get_user_data
-gdk_window_get_geometry
-gdk_window_set_geometry_hints
-gdk_window_get_width
-gdk_window_get_height
-gdk_window_set_icon_list
-gdk_window_set_modal_hint
-gdk_window_get_modal_hint
-gdk_window_set_type_hint
-gdk_window_get_type_hint
-gdk_window_set_shadow_width
-gdk_window_set_skip_taskbar_hint
-gdk_window_set_skip_pager_hint
-gdk_window_set_urgency_hint
-gdk_window_get_position
-gdk_window_get_root_origin
-gdk_window_get_frame_extents
-gdk_window_get_origin
-gdk_window_get_root_coords
-gdk_window_get_device_position
-gdk_window_get_device_position_double
+gdk_surface_set_cursor
+gdk_surface_get_cursor
+gdk_surface_get_user_data
+gdk_surface_get_geometry
+gdk_surface_set_geometry_hints
+gdk_surface_get_width
+gdk_surface_get_height
+gdk_surface_set_icon_list
+gdk_surface_set_modal_hint
+gdk_surface_get_modal_hint
+gdk_surface_set_type_hint
+gdk_surface_get_type_hint
+gdk_surface_set_shadow_width
+gdk_surface_set_skip_taskbar_hint
+gdk_surface_set_skip_pager_hint
+gdk_surface_set_urgency_hint
+gdk_surface_get_position
+gdk_surface_get_root_origin
+gdk_surface_get_frame_extents
+gdk_surface_get_origin
+gdk_surface_get_root_coords
+gdk_surface_get_device_position
+gdk_surface_get_device_position_double
 GdkModifierType
 GdkModifierIntent
-gdk_window_get_parent
-gdk_window_get_toplevel
-gdk_window_get_children
-gdk_window_get_children_with_user_data
-gdk_window_peek_children
-gdk_window_get_events
-gdk_window_set_events
-gdk_window_set_icon_name
-gdk_window_set_transient_for
-gdk_window_set_role
-gdk_window_set_startup_id
-gdk_window_set_group
-gdk_window_get_group
-gdk_window_set_decorations
-gdk_window_get_decorations
+gdk_surface_get_parent
+gdk_surface_get_toplevel
+gdk_surface_get_children
+gdk_surface_get_children_with_user_data
+gdk_surface_peek_children
+gdk_surface_get_events
+gdk_surface_set_events
+gdk_surface_set_icon_name
+gdk_surface_set_transient_for
+gdk_surface_set_role
+gdk_surface_set_startup_id
+gdk_surface_set_group
+gdk_surface_get_group
+gdk_surface_set_decorations
+gdk_surface_get_decorations
 GdkWMDecoration
-gdk_window_set_functions
+gdk_surface_set_functions
 GdkWMFunction
 
 <SUBSECTION>
-gdk_window_get_support_multidevice
-gdk_window_set_support_multidevice
-gdk_window_get_device_cursor
-gdk_window_set_device_cursor
-gdk_window_get_device_events
-gdk_window_set_device_events
+gdk_surface_get_support_multidevice
+gdk_surface_set_support_multidevice
+gdk_surface_get_device_cursor
+gdk_surface_set_device_cursor
+gdk_surface_get_device_events
+gdk_surface_set_device_events
 
 <SUBSECTION>
-gdk_window_coords_from_parent
-gdk_window_coords_to_parent
+gdk_surface_coords_from_parent
+gdk_surface_coords_to_parent
 
 <SUBSECTION Standard>
-GDK_WINDOW
-GDK_WINDOW_GET_CLASS
-GDK_TYPE_WINDOW
-GDK_IS_WINDOW
-GDK_WINDOW_CLASS
-GDK_IS_WINDOW_CLASS
+GDK_SURFACE
+GDK_SURFACE_GET_CLASS
+GDK_TYPE_SURFACE
+GDK_IS_SURFACE
+GDK_SURFACE_CLASS
+GDK_IS_SURFACE_CLASS
 GDK_TYPE_FILTER_RETURN
 GDK_TYPE_GRAVITY
 GDK_TYPE_MODIFIER_TYPE
-GDK_TYPE_WINDOW_ATTRIBUTES_TYPE
-GDK_TYPE_WINDOW_EDGE
-GDK_TYPE_WINDOW_HINTS
-GDK_TYPE_WINDOW_TYPE
-GDK_TYPE_WINDOW_TYPE_HINT
+GDK_TYPE_SURFACE_ATTRIBUTES_TYPE
+GDK_TYPE_SURFACE_EDGE
+GDK_TYPE_SURFACE_HINTS
+GDK_TYPE_SURFACE_TYPE
+GDK_TYPE_SURFACE_TYPE_HINT
 GDK_TYPE_WM_DECORATION
 GDK_TYPE_WM_FUNCTION
-GDK_TYPE_WINDOW_STATE
+GDK_TYPE_SURFACE_STATE
 
 <SUBSECTION Private>
-gdk_window_get_type
-gdk_window_window_class_get_type
-GdkWindowClass
-GdkWindowImpl
-GdkWindowImplClass
-GdkWindowRedirect
-gdk_window_impl_get_type
+gdk_surface_get_type
+gdk_surface_window_class_get_type
+GdkSurfaceClass
+GdkSurfaceImpl
+GdkSurfaceImplClass
+GdkSurfaceRedirect
+gdk_surface_impl_get_type
 gdk_fullscreen_mode_get_type
 </SECTION>
 
@@ -442,11 +372,16 @@ gdk_content_formats_union_deserialize_mime_types
 <SUBSECTION>
 GdkContentFormatsBuilder
 gdk_content_formats_builder_new
-gdk_content_formats_builder_free
+gdk_content_formats_builder_free_to_formats
 gdk_content_formats_builder_add_formats
 gdk_content_formats_builder_add_gtype
 gdk_content_formats_builder_add_mime_type
 
+<SUBSECTION>
+gdk_content_formats_builder_ref
+gdk_content_formats_builder_unref
+gdk_content_formats_builder_to_formats
+
 <SUBSECTION Private>
 GDK_TYPE_FILE_LIST
 gdk_file_list_get_type
@@ -471,8 +406,8 @@ gdk_pango_layout_line_get_clip_region
 <SECTION>
 <TITLE>Cairo Interaction</TITLE>
 <FILE>cairo_interaction</FILE>
-gdk_window_create_similar_surface
-gdk_window_create_similar_image_surface
+gdk_surface_create_similar_surface
+gdk_surface_create_similar_image_surface
 gdk_cairo_get_clip_rectangle
 gdk_cairo_get_drawing_context
 gdk_cairo_set_source_rgba
@@ -501,22 +436,6 @@ gdk_rectangle_contains_point
 gdk_rectangle_get_type
 </SECTION>
 
-<SECTION>
-<TITLE>Threads</TITLE>
-<FILE>threads</FILE>
-GDK_THREADS_ENTER
-GDK_THREADS_LEAVE
-gdk_threads_init
-gdk_threads_enter
-gdk_threads_leave
-gdk_threads_add_idle
-gdk_threads_add_idle_full
-gdk_threads_add_timeout
-gdk_threads_add_timeout_full
-gdk_threads_add_timeout_seconds
-gdk_threads_add_timeout_seconds_full
-</SECTION>
-
 <SECTION>
 <TITLE>Keyboard Handling</TITLE>
 <FILE>keys</FILE>
@@ -606,15 +525,15 @@ gdk_device_ungrab
 gdk_device_get_state
 gdk_device_get_position
 gdk_device_get_position_double
-gdk_device_get_window_at_position
-gdk_device_get_window_at_position_double
+gdk_device_get_surface_at_position
+gdk_device_get_surface_at_position_double
 gdk_device_get_history
 gdk_device_free_history
 GdkTimeCoord
 gdk_device_get_axis
 gdk_device_list_axes
 gdk_device_get_axis_value
-gdk_device_get_last_event_window
+gdk_device_get_last_event_surface
 
 <SUBSECTION>
 gdk_device_tool_get_serial
@@ -635,6 +554,7 @@ GDK_IS_DEVICE
 GDK_IS_DEVICE_CLASS
 GDK_TYPE_DEVICE
 GDK_DEVICE_TOOL
+GDK_IS_DEVICE_TOOL
 
 <SUBSECTION Private>
 GdkDeviceClass
@@ -726,7 +646,7 @@ gdk_event_get_scroll_deltas
 gdk_event_is_scroll_stop_event
 gdk_event_get_state
 gdk_event_get_time
-gdk_event_get_window
+gdk_event_get_surface
 gdk_event_get_event_type
 GdkEventSequence
 gdk_event_get_event_sequence
@@ -742,7 +662,7 @@ gdk_event_get_crossing_mode
 gdk_event_get_drag_context
 gdk_event_get_focus_in
 gdk_event_get_grab_window
-gdk_event_get_history
+gdk_event_get_motion_history
 gdk_event_get_key_group
 gdk_event_get_key_is_modifier
 gdk_event_get_pad_axis_value
@@ -779,20 +699,40 @@ GDK_TYPE_EVENT_TYPE
 GDK_TYPE_CROSSING_MODE
 GDK_TYPE_SCROLL_DIRECTION
 GDK_TYPE_NOTIFY_TYPE
+GDK_IS_EVENT
 gdk_event_get_type
 </SECTION>
 
+<SECTION>
+<TITLE>Paintable</TITLE>
+<FILE>paintable</FILE>
+GdkPaintable
+gdk_paintable_snapshot
+gdk_paintable_get_current_image
+gdk_paintable_get_flags
+gdk_paintable_get_intrinsic_width
+gdk_paintable_get_intrinsic_height
+gdk_paintable_get_intrinsic_aspect_ratio
+gdk_paintable_compute_concrete_size
+gdk_paintable_invalidate_contents
+gdk_paintable_invalidate_size
+<SECTION>
+
 <SECTION>
 <TITLE>Textures</TITLE>
 <FILE>textures</FILE>
 GdkTexture
-gdk_texture_new_for_data
 gdk_texture_new_for_pixbuf
 gdk_texture_new_from_resource
 gdk_texture_new_from_file
 gdk_texture_get_width
 gdk_texture_get_height
 gdk_texture_download
+GdkMemoryFormat
+GDK_MEMORY_FORMAT_DEFAULT
+gdk_memory_texture_new
+gdk_gl_texture_new
+gdk_gl_texture_release
 
 <SUBSECTION Standard>
 GdkTextureClass
@@ -800,6 +740,16 @@ gdk_texture_get_type
 GDK_TYPE_TEXTURE
 GDK_IS_TEXTURE
 GDK_TEXTURE
+GdkGLTextureClass
+gdk_gl_texture_get_type
+GDK_TYPE_GL_TEXTURE
+GDK_IS_GL_TEXTURE
+GDK_GL_TEXTURE
+GdkMemoryTextureClass
+gdk_memory_texture_get_type
+GDK_TYPE_MEMORY_TEXTURE
+GDK_IS_MEMORY_TEXTURE
+GDK_MEMORY_TEXTURE
 </SECTION>
 
 <SECTION>
@@ -817,6 +767,7 @@ gdk_cursor_get_hotspot_y
 <SUBSECTION Standard>
 GDK_TYPE_CURSOR
 GDK_CURSOR
+GDK_IS_CURSOR
 
 <SUBSECTION Private>
 gdk_cursor_get_type
@@ -842,9 +793,9 @@ gdk_drag_context_get_suggested_action
 gdk_drag_context_get_selected_action
 gdk_drag_context_get_formats
 gdk_drag_context_get_device
-gdk_drag_context_get_source_window
-gdk_drag_context_get_dest_window
-gdk_drag_context_get_drag_window
+gdk_drag_context_get_source_surface
+gdk_drag_context_get_dest_surface
+gdk_drag_context_get_drag_surface
 gdk_drag_context_set_hotspot
 
 <SUBSECTION Standard>
@@ -866,7 +817,7 @@ gdk_drag_context_get_type
 <INCLUDE>gdk/gdkx.h</INCLUDE>
 <TITLE>X Window System Interaction</TITLE>
 <FILE>x_interaction</FILE>
-GDK_WINDOW_XID
+GDK_SURFACE_XID
 GDK_DISPLAY_XDISPLAY
 GDK_POINTER_TO_XID
 GDK_XID_TO_POINTER
@@ -891,7 +842,7 @@ gdk_x11_display_error_trap_push
 gdk_x11_display_error_trap_pop
 gdk_x11_display_error_trap_pop_ignored
 gdk_x11_display_set_cursor_theme
-gdk_x11_display_set_window_scale
+gdk_x11_display_set_surface_scale
 gdk_x11_display_get_glx_version
 gdk_x11_register_standard_event_type
 gdk_x11_screen_get_screen_number
@@ -902,17 +853,16 @@ gdk_x11_screen_lookup_visual
 gdk_x11_screen_supports_net_wm_hint
 gdk_x11_screen_get_number_of_desktops
 gdk_x11_screen_get_current_desktop
-gdk_x11_window_foreign_new_for_display
-gdk_x11_window_lookup_for_display
-gdk_x11_window_get_xid
-gdk_x11_window_set_theme_variant
-gdk_x11_window_set_user_time
-gdk_x11_window_move_to_current_desktop
-gdk_x11_window_move_to_desktop
-gdk_x11_window_get_desktop
-gdk_x11_window_set_utf8_property
-gdk_x11_window_set_frame_extents
-gdk_x11_window_set_frame_sync_enabled
+gdk_x11_surface_foreign_new_for_display
+gdk_x11_surface_lookup_for_display
+gdk_x11_surface_get_xid
+gdk_x11_surface_set_theme_variant
+gdk_x11_surface_set_user_time
+gdk_x11_surface_move_to_current_desktop
+gdk_x11_surface_move_to_desktop
+gdk_x11_surface_get_desktop
+gdk_x11_surface_set_utf8_property
+gdk_x11_surface_set_frame_sync_enabled
 gdk_x11_keymap_get_group_for_state
 gdk_x11_keymap_key_is_modifier
 gdk_x11_visual_get_xvisual
@@ -1005,12 +955,12 @@ GDK_X11_VISUAL_CLASS
 GDK_IS_X11_VISUAL
 GDK_IS_X11_VISUAL_CLASS
 GDK_X11_VISUAL_GET_CLASS
-GDK_TYPE_X11_WINDOW
-GDK_X11_WINDOW
-GDK_X11_WINDOW_CLASS
-GDK_IS_X11_WINDOW
-GDK_IS_X11_WINDOW_CLASS
-GDK_X11_WINDOW_GET_CLASS
+GDK_TYPE_X11_SURFACE
+GDK_X11_SURFACE
+GDK_X11_SURFACE_CLASS
+GDK_IS_X11_SURFACE
+GDK_IS_X11_SURFACE_CLASS
+GDK_X11_SURFACE_GET_CLASS
 
 <SUBSECTION Private>
 gdk_x11_app_launch_context_get_type
@@ -1027,8 +977,8 @@ gdk_x11_drag_context_get_type
 gdk_x11_keymap_get_type
 gdk_x11_screen_get_type
 gdk_x11_visual_get_type
-gdk_x11_window_get_type
-gdk_window_impl_x11_get_type
+gdk_x11_surface_get_type
+gdk_surface_impl_x11_get_type
 </SECTION>
 
 <SECTION>
@@ -1041,13 +991,14 @@ gdk_wayland_device_get_wl_pointer
 gdk_wayland_device_get_wl_seat
 gdk_wayland_display_get_wl_compositor
 gdk_wayland_display_get_wl_display
-gdk_wayland_window_new_subsurface
-gdk_wayland_window_get_wl_surface
-gdk_wayland_window_set_use_custom_surface
-GdkWaylandWindowExported
-gdk_wayland_window_export_handle
-gdk_wayland_window_unexport_handle
-gdk_wayland_window_set_transient_for_exported
+gdk_wayland_display_query_registry
+gdk_wayland_surface_new_subsurface
+gdk_wayland_surface_get_wl_surface
+gdk_wayland_surface_set_use_custom_surface
+GdkWaylandSurfaceExported
+gdk_wayland_surface_export_handle
+gdk_wayland_surface_unexport_handle
+gdk_wayland_surface_set_transient_for_exported
 
 <SUBSECTION Standard>
 GDK_TYPE_WAYLAND_DEVICE
@@ -1068,18 +1019,18 @@ GDK_WAYLAND_DISPLAY_MANAGER_CLASS
 GDK_WAYLAND_DISPLAY_MANAGER_GET_CLASS
 GDK_IS_WAYLAND_DISPLAY_MANAGER
 GDK_IS_WAYLAND_DISPLAY_MANAGER_CLASS
-GDK_TYPE_WAYLAND_WINDOW
-GDK_WAYLAND_WINDOW
-GDK_WAYLAND_WINDOW_CLASS
-GDK_WAYLAND_WINDOW_GET_CLASS
-GDK_IS_WAYLAND_WINDOW
-GDK_IS_WAYLAND_WINDOW_CLASS
+GDK_TYPE_WAYLAND_SURFACE
+GDK_WAYLAND_SURFACE
+GDK_WAYLAND_SURFACE_CLASS
+GDK_WAYLAND_SURFACE_GET_CLASS
+GDK_IS_WAYLAND_SURFACE
+GDK_IS_WAYLAND_SURFACE_CLASS
 
 <SUBSECTION Private>
 gdk_wayland_device_get_type
 gdk_wayland_display_get_type
 gdk_wayland_display_manager_get_type
-gdk_wayland_window_get_type
+gdk_wayland_surface_get_type
 
 </SECTION>
 
@@ -1154,7 +1105,7 @@ gdk_frame_timings_get_type
 <FILE>gdkdrawcontext</FILE>
 GdkDrawContext
 gdk_draw_context_get_display
-gdk_draw_context_get_window
+gdk_draw_context_get_surface
 
 <SUBSECTION Standard>
 GDK_DRAW_CONTEXT
@@ -1170,7 +1121,7 @@ gdk_draw_context_get_type
 <FILE>gdkglcontext</FILE>
 GdkGLContext
 gdk_gl_context_get_display
-gdk_gl_context_get_window
+gdk_gl_context_get_surface
 gdk_gl_context_get_shared_context
 gdk_gl_context_get_version
 
@@ -1235,7 +1186,7 @@ GDK_IS_MONITOR
 <SECTION>
 <FILE>gdkdrawingcontext</FILE>
 GdkDrawingContext
-gdk_drawing_context_get_window
+gdk_drawing_context_get_surface
 gdk_drawing_context_get_clip
 gdk_drawing_context_get_cairo_context
 gdk_drawing_context_is_valid
@@ -1245,6 +1196,9 @@ gdk_drawing_context_get_paint_context
 gdk_drawing_context_get_type
 GdkDrawingContextClass
 GDK_TYPE_DRAWING_CONTEXT
+GDK_DRAWING_CONTEXT_CLASS
+GDK_DRAWING_CONTEXT_GET_CLASS
+GDK_IS_DRAWING_CONTEXT_CLASS
 GDK_DRAWING_CONTEXT
 GDK_IS_DRAWING_CONTEXT
 </SECTION>
@@ -1317,6 +1271,8 @@ gdk_content_provider_get_value
 GDK_CONTENT_PROVIDER
 GDK_CONTENT_PROVIDER_CLASS
 GDK_CONTENT_PROVIDER_GET_CLASS
+GDK_IS_CONTENT_PROVIDER
+GDK_IS_CONTENT_PROVIDER_CLASS
 GdkContentProviderClass
 gdk_content_provider_get_type
 </SECTION>

docs/reference/gdk/gdk4.types

@@ -11,7 +11,7 @@ gdk_gl_context_get_type
 gdk_keymap_get_type
 gdk_monitor_get_type
 gdk_seat_get_type
-gdk_window_get_type
+gdk_surface_get_type
 gdk_content_serializer_get_type
 gdk_content_deserializer_get_type
 gdk_clipboard_get_type