x11: Drop a gratitious use of gdk_event_get_root_coords

We are in the backend, so we can do the translation ourselves.

.gitignore

@@ -0,0 +1 @@
+/subprojects/*/

.gitlab-ci.yml

@@ -1,43 +1,82 @@
 stages:
   - build
   - flatpak
+  - deploy
 
-gtk:
-  image: ebassi/gitlab-gtk:latest
+.cache-paths: &cache-paths
+  paths:
+    - _ccache/
+    - subprojects/gdk-pixbuf/
+    - subprojects/glib/
+    - subprojects/graphene/
+    - subprojects/libepoxy/
+    - subprojects/pango/
+
+fedora-x86_64:
+  image: registry.gitlab.gnome.org/gnome/gtk/master:v2
   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"
+  cache:
+    key: "$CI_JOB_NAME"
+    <<: *cache-paths
+
+.mingw-defaults: &mingw-defaults
+  stage: build
+  tags:
+    - win32
+  script:
+    - C:\msys64\usr\bin\pacman --noconfirm -Syyuu
+    - C:\msys64\usr\bin\bash -lc "bash -x ./.gitlab-ci/test-msys2.sh"
+  cache:
+    key: "%CI_JOB_NAME%"
+    <<: *cache-paths
+
+msys2-mingw32:
+  variables:
+    MSYSTEM: "MINGW32"
+    CHERE_INVOKING: "yes"
+  <<: *mingw-defaults
+
+.flatpak-defaults: &flatpak-defaults
+  image: registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master
+  stage: flatpak
+  artifacts:
+    paths:
+      - "${APPID}-dev.flatpak"
+    expire_in: 1 day
+  script:
+    - bash -x ./.gitlab-ci/flatpak-build.sh "${APPID}"
 
 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
+  variables:
+    APPID: org.gtk.Demo
+  <<: *flatpak-defaults
 
 flatpak:widget-factory:
-  image: registry.gitlab.com/alatiera/gnome-nightly-oci/gnome-master:latest
-  stage: flatpak
+  variables:
+    APPID: org.gtk.WidgetFactory
+  <<: *flatpak-defaults
+
+pages:
+  image: registry.gitlab.gnome.org/gnome/gtk/master:v2
+  stage: deploy 
   script:
-    - bash -x ./.gitlab-ci/flatpak-build.sh org.gtk.WidgetFactory
+    - meson -Ddocumentation=true _build .
+    - ninja -C _build
+    - ninja -C _build gdk4-doc gsk4-doc gtk4-doc
+
+    - mkdir -p public/
+    - mv _build/docs/reference/gtk/html/ public/gtk/
+    - mv _build/docs/reference/gdk/html/ public/gdk/
+    - mv _build/docs/reference/gsk/html/ public/gsk/
   artifacts:
     paths:
-      - org.gtk.WidgetFactory-dev.flatpak
-    expire_in: 1 day
+      - public
+  only:
+    - master

.gitlab-ci/Dockerfile

@@ -1,6 +1,7 @@
-FROM fedora:27
+FROM fedora:29
 
 RUN dnf -y install \
+    hicolor-icon-theme \
     adwaita-icon-theme \
     atk-devel \
     at-spi2-atk-devel \
@@ -28,9 +29,11 @@ RUN dnf -y install \
     gstreamer1-plugins-good \
     gstreamer1-plugins-bad-free-devel \
     gstreamer1-plugins-base-devel \
+    gtk-doc \
     iso-codes \
     itstool \
     json-glib-devel \
+    lcov \
     libattr-devel \
     libepoxy-devel \
     libffi-devel \
@@ -67,7 +70,7 @@ RUN dnf -y install \
     xorg-x11-server-Xvfb \
  && dnf clean all
 
-RUN pip3 install meson
+RUN pip3 install meson==0.49.0
 
 ARG HOST_USER_ID=5555
 ENV HOST_USER_ID ${HOST_USER_ID}

.gitlab-ci/run-docker.sh

@@ -2,7 +2,7 @@
 
 set -e
 
-TAG="ebassi/gitlab-gtk:latest"
+TAG="registry.gitlab.gnome.org/gnome/gtk/master:v2"
 
 sudo docker build --build-arg HOST_USER_ID="$UID" --tag "${TAG}" \
     --file "Dockerfile" .

.gitlab-ci/test-docker.sh

@@ -4,20 +4,30 @@ set -e
 
 srcdir=$(pwd)
 
+mkdir -p _ccache
+export CCACHE_BASEDIR="$(pwd)"
+export CCACHE_DIR="${CCACHE_BASEDIR}/_ccache"
+
+ccache --zero-stats
+ccache --show-stats
+export CCACHE_DISABLE=true
 meson \
         -Dx11-backend=true \
         -Dwayland-backend=true \
         -Dbroadway-backend=true \
         -Dvulkan=yes \
         _build $srcdir
+unset CCACHE_DISABLE
 
 cd _build
 
 ninja
+ccache --show-stats
 
 xvfb-run -a -s "-screen 0 1024x768x24" \
     meson test \
+        --timeout-multiplier 2 \
         --print-errorlogs \
-        --suite=gtk+ \
-        --no-suite=gtk+:gsk \
-        --no-suite=gtk+:a11y
+        --suite=gtk \
+        --no-suite=gtk:gsk \
+        --no-suite=gtk:a11y

.gitlab-ci/test-msys2.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+
+set -e
+
+if [[ "$MSYSTEM" == "MINGW32" ]]; then
+    export MSYS2_ARCH="i686"
+else
+    export MSYS2_ARCH="x86_64"
+fi
+
+# Update everything
+pacman --noconfirm -Suy
+
+# Install the required packages
+pacman --noconfirm -S --needed \
+    base-devel \
+    git \
+    mingw-w64-$MSYS2_ARCH-toolchain \
+    mingw-w64-$MSYS2_ARCH-ccache \
+    mingw-w64-$MSYS2_ARCH-pkg-config \
+    mingw-w64-$MSYS2_ARCH-gobject-introspection \
+    mingw-w64-$MSYS2_ARCH-meson \
+    mingw-w64-$MSYS2_ARCH-adwaita-icon-theme \
+    mingw-w64-$MSYS2_ARCH-atk \
+    mingw-w64-$MSYS2_ARCH-cairo \
+    mingw-w64-$MSYS2_ARCH-gdk-pixbuf2 \
+    mingw-w64-$MSYS2_ARCH-glib2 \
+    mingw-w64-$MSYS2_ARCH-graphene \
+    mingw-w64-$MSYS2_ARCH-json-glib \
+    mingw-w64-$MSYS2_ARCH-libepoxy \
+    mingw-w64-$MSYS2_ARCH-pango \
+    mingw-w64-$MSYS2_ARCH-fribidi \
+    mingw-w64-$MSYS2_ARCH-gst-plugins-bad \
+    mingw-w64-$MSYS2_ARCH-shared-mime-info
+
+mkdir -p _ccache
+export CCACHE_BASEDIR="$(pwd)"
+export CCACHE_DIR="${CCACHE_BASEDIR}/_ccache"
+
+# Build
+ccache --zero-stats
+ccache --show-stats
+export CCACHE_DISABLE=true
+meson \
+    -Denable-x11-backend=false \
+    -Denable-wayland-backend=false \
+    -Denable-win32-backend=true \
+    -Dvulkan=no \
+    _build
+unset CCACHE_DISABLE
+
+ninja -C _build
+ccache --show-stats

.gitlab/issue_templates/Bug.md

@@ -23,17 +23,14 @@
 
 ## 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
+ - 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
--->
+ - Screenshots or screen recordings are useful for visual errors
+ - Please report any warning or message printed on the terminal
+-->

.gitlab/issue_templates/Crash.md

@@ -0,0 +1,34 @@
+## 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.
+-->
+
+## 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
+-->
+
+## Warnings
+<!--
+ - If the application generates warning messages before crashing please
+   report them here
+-->
+
+## Backtrace
+<!--
+ - 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

@@ -1,31 +1,144 @@
-If you want to hack on the GTK+ project, you'll need to have the development
-tools appropriate for your operating system, including:
+# Contribution guidelines
+
+Thank you for considering contributing to the GTK project!
+
+These guidelines are meant for new contributors, regardless of their level
+of proficiency; following them allows the maintainers of the GTK project to
+more effectively evaluate your contribution, and provide prompt feedback to
+you. Additionally, by following these guidelines you clearly communicate
+that you respect the time and effort that the people developing GTK put into
+managing the project.
+
+GTK is a complex free software GUI toolkit, and it would not exist without
+contributions from the free and open source software community. There are
+many things that we value:
+
+ - bug reporting and fixing
+ - documentation and examples
+ - tests
+ - new features
+
+Please, do not use the issue tracker for support questions. If you have
+questions on how to use GTK effectively, you can use:
+
+ - the `#gtk` IRC channel on irc.gnome.org
+ - the [gtk](https://mail.gnome.org/mailman/listinfo/gtk-list) mailing list,
+   for general questions on GTK
+ - the [gtk-app-devel](https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list)
+   mailing list, for questions on application development with GTK
+ - the [gtk-devel](https://mail.gnome.org/mailman/listinfo/gtk-devel-list)
+   mailing list, for questions on developing GTK itself
+
+You can also look at the GTK tag on [Stack
+Overflow](https://stackoverflow.com/questions/tagged/gtk).
+
+The issue tracker is meant to be used for actionable issues only.
+
+## How to report bugs
+
+### Security issues
+
+You should not open a new issue for security related questions.
+
+When in doubt, send an email to the [security](mailto:security@gnome.org)
+mailing list.
+
+### Bug reports
+
+If you're reporting a bug make sure to list:
+
+ 0. which version of GTK are you using?
+ 0. which operating system are you using?
+ 0. the necessary steps to reproduce the issue
+ 0. the expected outcome
+ 0. a description of the behavior; screenshots are also welcome
+ 0. a small, self-contained example exhibiting the behavior; if this
+    is not available, try reproducing the issue using the GTK examples
+    or interactive tests
+
+If the issue includes a crash, you should also include:
+
+ 0. the eventual warnings printed on the terminal
+ 0. a backtrace, obtained with tools such as GDB or LLDB
+
+For small issues, such as:
+
+ - spelling/grammar fixes in the documentation
+ - typo correction
+ - comment clean ups
+ - changes to metadata files (CI, `.gitignore`)
+ - build system changes
+ - source tree clean ups and reorganizations
+
+You should directly open a merge request instead of filing a new issue.
+
+### Features and enhancements
+
+Feature discussion can be open ended and require high bandwidth channels; if
+you are proposing a new feature on the issue tracker, make sure to make
+an actionable proposal, and list:
+
+ 0. what you're trying to achieve
+ 0. prior art, in other toolkits or applications
+ 0. design and theming changes
+
+If you're proposing the integration of new features it helps to have
+multiple applications using shared or similar code, especially if they have
+iterated over it various times.
+
+Each feature should also come fully documented, and with tests.
+
+## Your first contribution
+
+### Prerequisites
+
+If you want to contribute to the GTK project, you will need to have the
+development tools appropriate for your operating system, including:
 
  - Python 3.x
  - Meson
  - Ninja
  - Gettext (19.7 or newer)
- - a C99 compatible compiler
+ - a [C99 compatible compiler](https://wiki.gnome.org/Projects/GLib/CompilerRequirements)
 
 Up-to-date instructions about developing GNOME applications and libraries
-can be found here:
+can be found on [the GNOME Developer Center](https://developer.gnome.org).
 
- * https://developer.gnome.org
+The GTK project uses GitLab for code hosting and for tracking issues. More
+information about using GitLab can be found [on the GNOME
+wiki](https://wiki.gnome.org/GitLab).
 
-Information about using GitLab with GNOME can be found here:
+### Dependencies
 
- * https://wiki.gnome.org/GitLab
+In order to get GTK from Git installed on your system, you need to have the
+required versions of all the software dependencies required by GTK; typically,
+this means a 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).
 
-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, as well as the platform
-specific dependencies for the windowing system you are using (Wayland, X11,
-Windows, or macOS).
+The core dependencies for GTK are:
+
+ - [GLib, GObject, and GIO](https://gitlab.gnome.org/GNOME/glib)
+ - [Cairo](http://cairographics.org)
+ - [Pango](https://gitlab.gnome.org/GNOME/pango)
+ - [GdkPixbuf](https://gitlab.gnome.org/GNOME/gdk-pixbuf)
+ - [Epoxy](https://github.com/anholt/libepoxy)
+ - [ATK](https://gitlab.gnome.org/GNOME/atk)
+ - [Graphene](https://github.com/ebassi/graphene)
+
+GTK will attempt to download and build some of these dependencies if it
+cannot find them on your system.
+
+Additionally, you may want to look at projects that create a development
+environment for you, like [jhbuild](https://wiki.gnome.org/HowDoI/Jhbuild)
+and [gvsbuild](https://github.com/wingtk/gvsbuild).
+
+### Getting started
 
 You should start by forking the GTK repository from the GitLab web UI, and
 cloning from your fork:
 
-```ssh
+```sh
 $ git clone https://gitlab.gnome.org/yourusername/gtk.git
 $ cd gtk
 ```
@@ -38,7 +151,7 @@ $ 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
+To compile the Git version of GTK on your system, you will need to
 configure your build using Meson:
 
 ```sh
@@ -47,11 +160,6 @@ $ cd _builddir
 $ ninja
 ```
 
-**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
@@ -61,3 +169,98 @@ $ 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.
+
+### Code reviews
+
+Each contribution is reviewed by the core developers of the GTK project.
+
+The [CODE-OWNERS](./docs/CODE-OWNERS) document contains the list of core
+contributors to GTK and the areas for which they are responsible; you
+should ensure to receive their review and signoff on your changes.
+
+### Commit messages
+
+The expected format for git commit messages is as follows:
+
+```plain
+Short explanation of the commit
+
+Longer explanation explaining exactly what's changed, whether any
+external or private interfaces changed, what bugs were fixed (with bug
+tracker reference if applicable) and so forth. Be concise but not too
+brief.
+
+Closes #1234
+```
+
+ - Always add a brief description of the commit to the _first_ line of
+ the commit and terminate by two newlines (it will work without the
+ second newline, but that is not nice for the interfaces).
+
+ - First line (the brief description) must only be one sentence and
+ should start with a capital letter unless it starts with a lowercase
+ symbol or identifier. Don't use a trailing period either. Don't exceed
+ 72 characters.
+
+ - The main description (the body) is normal prose and should use normal
+ punctuation and capital letters where appropriate. Consider the commit
+ message as an email sent to the developers (or yourself, six months
+ down the line) detailing **why** you changed something. There's no need
+ to specify the **how**: the changes can be inlined.
+
+ - When committing code on behalf of others use the `--author` option, e.g.
+ `git commit -a --author "Joe Coder <joe@coder.org>"` and `--signoff`.
+
+ - If your commit is addressing an issue, use the
+ [GitLab syntax](https://docs.gitlab.com/ce/user/project/issues/automatic_issue_closing.html)
+ to automatically close the issue when merging the commit with the upstream
+ repository:
+
+```plain
+Closes #1234
+Fixes #1234
+Closes: https://gitlab.gnome.org/GNOME/gtk/issues/1234
+```
+
+ - If you have a merge request with multiple commits and none of them
+ completely fixes an issue, you should add a reference to the issue in
+ the commit message, e.g. `Bug: #1234`, and use the automatic issue
+ closing syntax in the description of the merge request.
+
+### Commit access to the GTK repository
+
+GTK is part of the GNOME infrastructure. At the current time, any
+person with write access to the GNOME repository can merge changes to
+GTK. This is a good thing, in that it encourages many people to work
+on GTK, and progress can be made quickly. However, GTK is a fairly
+large and complicated project on which many other things depend, so to
+avoid unnecessary breakage, and to take advantage of the knowledge
+about GTK that has been built up over the years, we'd like to ask
+people committing to GTK to follow a few rules:
+
+0. Ask first. If your changes are major, or could possibly break existing
+   code, you should always ask. If your change is minor and you've been
+   working on GTK for a while it probably isn't necessary to ask. But when
+   in doubt, ask. Even if your change is correct, somebody may know a
+   better way to do things. If you are making changes to GTK, you should
+   be subscribed to the [gtk-devel](https://mail.gnome.org/mailman/listinfo/gtk-devel-list)
+   mailing list; this is a good place to ask about intended changes.
+   The `#gtk` IRC channel on irc.gnome.org is also a good place to find GTK
+   developers to discuss changes, but if you live outside of the EU/US time
+   zones, an email to the gtk-devel mailing list is the most certain and
+   preferred method.
+
+0. Ask _first_.
+
+0. Always write a meaningful commit message. Changes without a sufficient
+   commit message will be reverted.
+
+0. Never push to the `master` branch, or any stable branches, directly; you
+   should always go through a merge request, to ensure that the code is
+   tested on the CI infrastructure at the very least. A merge request is
+   also the proper place to get a comprehensive code review from the core
+   developers of GTK.
+
+If you have been contributing to GTK for a while and you don't have commit
+access to the repository, you may ask to obtain it following the [GNOME account
+process](https://wiki.gnome.org/AccountsTeam/NewAccounts).

NEWS

@@ -1,3 +1,91 @@
+Overview of Changes in GTK+ 3.94.0
+==================================
+
+* GdkPaintable is a new, powerful abstraction for drawable content.
+  gtk4-demo has a new "Paint" demo to show some of its capabilities.
+
+* There is support for displaying media, with
+  GtkVideo
+  GtkMediaFile
+  GtkMediaStream
+  GtkMediaControls
+
+* GtkFontChooser now supports OpenType font variations and features.
+
+* The Ctrl-Shift-E support in the simple IM context has been replaced
+  by an optional completion popup for Emoji alpha codes. This can be
+  enabled with the GtkEntry::enable-emoji-completion property.
+
+* Wayland has an input method based on the text protocol now
+
+* Input methods, print backends and media backends have been converted
+  to GIOModules and extension points, and support for generic loadable
+  modules has been dropped. Platform im modules are always included.
+
+* GdkWindow has been renamed to GdkSurface.
+
+* Applications can now create their own GtkSnapshot objects for
+  intermediate rendering.
+
+* Widget event signals have been replaced by event controllers,
+  and some new event controllers have been introduced for this:
+  GtkEventControllerMotion
+  GtkEventControllerKey
+  GtkGestureStylus
+
+* Event controllers can now be created in .ui files.
+
+* Invalidation tracking has been changed, only gtk_widget_queue_draw is left.
+
+* Observing widget contents and size is now done by using the
+  GtkWidgetPaintable object instead of connecting to widget signals.
+
+* The GtkWidget::draw signal has been removed, widgets need
+  to implement GtkWidget::snapshot.
+
+* GdkTexture now has GdkMemoryTexture and GdkGLTexture subclasses.
+
+* The Vulkan support in GDK can now use a particular device that is
+  specified by the GDK_VULKAN_DEVICE environment variable. use
+  GDK_VULKAN_DEVICE=list to see them all.
+
+* GTK+ Inspector
+  - has logging support, and the logging settings have been cleaned up
+  - has an fps overlay
+
+* Removed APIs and features:
+  Individual event signals such as ::proximity-in-event
+  The ::draw signal
+  threading support
+  non-platform IM modules
+  papi and test print backends
+  GtkPlacesSidebar
+  GtkRecentChooser
+  GtkToolPalette
+  GdkStatus
+  gtk_true, gtk_false
+  gtk_widget_show_now
+  gtk_widget_draw
+  gtk_render_icon_surface
+
+* Incomplete transitions:
+  The ::event signal is not still there, but it will be removed
+  The DND apis are not finalized yet
+
+* Translation updates:
+ Croatian
+ Esperanto
+ Estonian
+ French
+ Friulian
+ Icelandic
+ Latvian
+ Polish
+ Russian
+ Scottish Gaelic
+ Spanish
+
+
 Overview of Changes in GTK+ 3.93.0
 ==================================
 

README.commits

@@ -1,72 +0,0 @@
-GTK+ is part of the GNOME git repository. At the current time, any
-person with write access to the GNOME repository, can make changes to
-GTK+. This is a good thing, in that it encourages many people to work
-on GTK+, and progress can be made quickly. However, GTK+ is a fairly
-large and complicated package that many other things depend on, so to
-avoid unnecessary breakage, and to take advantage of the knowledge
-about GTK+ that has been built up over the years, we'd like to ask
-people committing to GTK+ to follow a few rules:
-
-0) Ask first. If your changes are major, or could possibly break existing
-   code, you should always ask. If your change is minor and you've
-   been working on GTK+ for a while it probably isn't necessary
-   to ask. But when in doubt, ask. Even if your change is correct,
-   somebody may know a better way to do things.
-
-   If you are making changes to GTK+, you should be subscribed
-   to gtk-devel-list@gnome.org. (Subscription address:
-   gtk-devel-list-request@gnome.org.) This is a good place to ask
-   about intended changes.
-
-   #gtk+ on GIMPNet (irc.gimp.org, irc.us.gimp.org, irc.eu.gimp.org, ...)
-   is also a good place to find GTK+ developers to discuss changes with,
-   however, email to gtk-devel-list is the most certain and preferred
-   method.
-
-1) Ask _first_.
-
-2) With git, we no longer maintain a ChangeLog file, but you are expected
-   to produce a meaningful commit message. Changes without a sufficient
-   commit message will be reverted. See below for the expected format
-   of commit messages.
-
-Notes:
-
-* When developing larger features or complicated bug fixes, it is
-  advisable to work in a branch in your own cloned GTK+ repository.
-  You may even consider making your repository publically available
-  so that others can easily test and review your changes.
-
-* The expected format for git commit messages is as follows:
-
-=== begin example commit ===
-Short explanation of the commit
-
-Longer explanation explaining exactly what's changed, whether any
-external or private interfaces changed, what bugs were fixed (with bug
-tracker reference if applicable) and so forth. Be concise but not too brief.
-=== end example commit ===
-
-  - Always add a brief description of the commit to the _first_ line of
-    the commit and terminate by two newlines (it will work without the
-    second newline, but that is not nice for the interfaces).
-
-  - First line (the brief description) must only be one sentence and
-    should start with a capital letter unless it starts with a lowercase
-    symbol or identifier. Don't use a trailing period either. Don't exceed
-    72 characters.
-
-  - The main description (the body) is normal prose and should use normal
-    punctuation and capital letters where appropriate. Normally, for patches
-    sent to a mailing list it's copied from there.
-
-  - When committing code on behalf of others use the --author option, e.g.
-    git commit -a --author "Joe Coder <joe@coder.org>" and --signoff.
-
-
-Owen Taylor
-13 Aug 1998
-17 Apr 2001
-
-Matthias Clasen
-31 Mar 2009

README.md

@@ -1,17 +1,17 @@
-GTK+ — The GTK toolkit
-======================
+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
 -------------------
 
-GTK+ is a multi-platform toolkit for creating graphical user interfaces.
-Offering a complete set of widgets, GTK+ is suitable for projects ranging
+GTK is a multi-platform toolkit for creating graphical user interfaces.
+Offering a complete set of widgets, GTK is suitable for projects ranging
 from small one-off projects to complete application suites.
 
-GTK+ is free software and part of the GNU Project. However, the
-licensing terms for GTK+, the GNU LGPL, allow it to be used by all
+GTK is free software and part of the GNU Project. However, the
+licensing terms for GTK, the GNU LGPL, allow it to be used by all
 developers, including those developing proprietary software, without any
 license fees or royalties.
 
@@ -31,10 +31,15 @@ Information about mailing lists can be found at
 
   - http://www.gtk.org/mailing-lists.php
 
+Nightly documentation can be found at
+  - Gtk: https://gnome.pages.gitlab.gnome.org/gtk/gtk/
+  - Gdk: https://gnome.pages.gitlab.gnome.org/gtk/gdk/
+  - Gsk: https://gnome.pages.gitlab.gnome.org/gtk/gsk/
+
 Building and installing
 -----------------------
 
-In order to build GTK+ you will need:
+In order to build GTK you will need:
 
   - [a C99 compatible compiler](https://wiki.gnome.org/Projects/GLib/CompilerRequirements)
   - [Python 3](https://www.python.org/)
@@ -74,7 +79,7 @@ If you are building the Wayland backend, you will also need:
   - Wayland-cursor
   - Wayland-EGL
 
-Once you have all the necessary dependencies, you can build GTK+ by using
+Once you have all the necessary dependencies, you can build GTK by using
 Meson:
 
 ```sh
@@ -89,7 +94,7 @@ You can run the test suite using:
 $ meson test
 ```
 
-And, finally, you can install GTK+ using:
+And, finally, you can install GTK using:
 
 ```
 $ sudo ninja install
@@ -113,10 +118,10 @@ In the bug report please include:
 
 * Information about your system. For instance:
 
-   - which version of GTK+ you are using
+   - which version of GTK you are using
    - what operating system and version
    - for Linux, which distribution
-   - if you built GTK+, the list of options used to configure the build
+   - if you built GTK, the list of options used to configure the build
 
   And anything else you think is relevant.
 
@@ -138,7 +143,7 @@ In the bug report please include:
 Release notes
 -------------
 
-The release notes for GTK+ are part of the migration guide in the API
+The release notes for GTK are part of the migration guide in the API
 reference. See:
 
  - [3.x release notes](https://developer.gnome.org/gtk3/unstable/gtk-migrating-2-to-3.html)
@@ -147,7 +152,7 @@ reference. See:
 Licensing terms
 ---------------
 
-GTK+ is released under the terms of the GNU Lesser General Public License,
+GTK is released under the terms of the GNU Lesser General Public License,
 version 2.1 or, at your option, any later version, as published by the Free
 Software Foundation.
 

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

@@ -5,8 +5,6 @@
     "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",
@@ -27,12 +25,28 @@
         "/share/doc"
     ],
     "modules": [
+        {
+            "name" : "wayland",
+            "buildsystem" : "autotools",
+            "builddir" : true,
+            "config-opts" : [
+                "--disable-documentation"
+            ],
+            "sources" : [
+                {
+                    "type" : "git",
+                    "url" : "https://github.com/wayland-project/wayland.git"
+                }
+            ]
+        },
         {
             "name": "graphene",
             "buildsystem": "meson",
             "builddir": true,
             "config-opts": [
-                "--libdir=/app/lib"
+                "--libdir=/app/lib",
+                "-Dtests=false",
+                "-Dbenchmarks=false"
             ],
             "sources": [
                 {

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

@@ -5,8 +5,6 @@
     "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",
@@ -27,12 +25,28 @@
         "/share/doc"
     ],
     "modules": [
+        {
+            "name" : "wayland",
+            "buildsystem" : "autotools",
+            "builddir" : true,
+            "config-opts" : [
+                "--disable-documentation"
+            ],
+            "sources" : [
+                {
+                    "type" : "git",
+                    "url" : "https://github.com/wayland-project/wayland.git"
+                }
+            ]
+        },
         {
             "name": "graphene",
             "buildsystem": "meson",
             "builddir": true,
             "config-opts": [
-                "--libdir=/app/lib"
+                "--libdir=/app/lib",
+                "-Dtests=false",
+                "-Dbenchmarks=false"
             ],
             "sources": [
                 {

build-aux/meson/post-install.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python3
+
+import os
+import sys
+import subprocess
+
+if 'DESTDIR' not in os.environ:
+    gtk_api_version = sys.argv[1]
+    gtk_abi_version = sys.argv[2]
+    gtk_libdir = sys.argv[3]
+    gtk_datadir = sys.argv[4]
+
+    gtk_moduledir = os.path.join(gtk_libdir, 'gtk-' + gtk_api_version, gtk_abi_version)
+    gtk_printmodule_dir = os.path.join(gtk_moduledir, 'printbackends')
+    gtk_immodule_dir = os.path.join(gtk_moduledir, 'immodules')
+
+    print('Compiling GSettings schemas...')
+    subprocess.call(['glib-compile-schemas',
+                    os.path.join(gtk_datadir, 'glib-2.0', 'schemas')])
+
+    print('Updating icon cache...')
+    subprocess.call(['gtk-update-icon-cache', '-q', '-t' ,'-f',
+                    os.path.join(gtk_datadir, 'icons', 'hicolor')])
+
+    print('Updating module cache for print backends...')
+    os.makedirs(gtk_printmodule_dir, exist_ok=True)
+    subprocess.call(['gio-querymodules', gtk_printmodule_dir])
+
+    print('Updating module cache for input methods...')
+    os.makedirs(gtk_immodule_dir, exist_ok=True)
+    subprocess.call(['gio-querymodules', gtk_immodule_dir])

build-aux/meson/post-install.sh

@@ -1,26 +0,0 @@
-#!/bin/sh
-
-gtk_api_version=$1
-gtk_abi_version=$2
-gtk_libdir=$3
-gtk_datadir=$4
-
-# Package managers set this so we don't need to run
-if [ -z "$DESTDIR" ]; then
-  echo Compiling GSettings schemas...
-  glib-compile-schemas ${gtk_datadir}/glib-2.0/schemas
-
-  echo Updating desktop database...
-  update-desktop-database -q ${gtk_datadir}/applications
-
-  echo Updating icon cache...
-  gtk-update-icon-cache -q -t -f ${gtk_datadir}/icons/hicolor
-
-  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

@@ -286,6 +286,10 @@
 /* Define to 1 if linux/memfd.h exists */
 #mesondefine HAVE_LINUX_MEMFD_H
 
+#mesondefine HAVE_LINUX_INPUT_H
+
+#mesondefine HAVE_DEV_EVDEV_INPUT_H
+
 #mesondefine GTK_SYSCONFDIR
 
 #mesondefine GTK_LOCALEDIR
@@ -301,3 +305,13 @@
 #mesondefine HAVE_PANGOFT
 
 #mesondefine ISO_CODES_PREFIX
+
+#mesondefine MALLOC_IS_ALIGNED16
+
+#mesondefine HAVE_POSIX_MEMALIGN
+
+#mesondefine HAVE_MEMALIGN
+
+#mesondefine HAVE_ALIGNED_ALLOC
+
+#mesondefine HAVE__ALIGNED_MALLOC

demos/gtk-demo/application.c

@@ -200,20 +200,20 @@ activate_about (GSimpleAction *action,
   };
 
   gtk_show_about_dialog (GTK_WINDOW (window),
-                         "program-name", "GTK+ Code Demos",
-                         "version", g_strdup_printf ("%s,\nRunning against GTK+ %d.%d.%d",
+                         "program-name", "GTK Code Demos",
+                         "version", g_strdup_printf ("%s,\nRunning against GTK %d.%d.%d",
                                                      PACKAGE_VERSION,
                                                      gtk_get_major_version (),
                                                      gtk_get_minor_version (),
                                                      gtk_get_micro_version ()),
-                         "copyright", "(C) 1997-2013 The GTK+ Team",
+                         "copyright", "(C) 1997-2013 The GTK Team",
                          "license-type", GTK_LICENSE_LGPL_2_1,
                          "website", "http://www.gtk.org",
-                         "comments", "Program to demonstrate GTK+ functions.",
+                         "comments", "Program to demonstrate GTK functions.",
                          "authors", authors,
                          "documenters", documentors,
-                         "logo-icon-name", "gtk4-demo",
-                         "title", "About GTK+ Code Demos",
+                         "logo-icon-name", "org.gtk.Demo",
+                         "title", "About GTK Code Demos",
                          NULL);
 }
 
@@ -455,15 +455,17 @@ demo_application_window_constructed (GObject *object)
 }
 
 static void
-demo_application_window_size_allocate (GtkWidget           *widget,
-                                       const GtkAllocation *allocation,
-                                       int                  baseline,
-                                       GtkAllocation       *out_clip)
+demo_application_window_size_allocate (GtkWidget *widget,
+                                       int        width,
+                                       int        height,
+                                       int        baseline)
 {
   DemoApplicationWindow *window = (DemoApplicationWindow *)widget;
 
-  GTK_WIDGET_CLASS (demo_application_window_parent_class)->size_allocate (widget, allocation,
-                                                                          baseline, out_clip);
+  GTK_WIDGET_CLASS (demo_application_window_parent_class)->size_allocate (widget,
+                                                                          width,
+                                                                          height,
+                                                                          baseline);
 
   if (!window->maximized && !window->fullscreen)
     gtk_window_get_size (GTK_WINDOW (window), &window->width, &window->height);

demos/gtk-demo/application.ui

@@ -1,4 +1,3 @@
-<?xml version="1.0"?>
 <interface>
   <template class="DemoApplicationWindow" parent="GtkApplicationWindow">
     <property name="title" translatable="yes">Application Class</property>
@@ -25,8 +24,7 @@
               </object>
             </child>
             <child>
-              <object class="GtkSeparatorToolItem">
-              </object>
+              <object class="GtkSeparatorToolItem"/>
             </child>
             <child>
               <object class="GtkToolButton">

demos/gtk-demo/appmenu.ui

@@ -1,6 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <interface>
-  <!-- interface-requires gtk+ 3.10 -->
   <menu id="appmenu">
     <section>
       <item>

demos/gtk-demo/assistant.c

@@ -80,7 +80,7 @@ on_entry_changed (GtkWidget *widget, gpointer data)
 
   page_number = gtk_assistant_get_current_page (assistant);
   current_page = gtk_assistant_get_nth_page (assistant, page_number);
-  text = gtk_entry_get_text (GTK_ENTRY (widget));
+  text = gtk_editable_get_text (GTK_EDITABLE (widget));
 
   if (text && *text)
     gtk_assistant_set_page_complete (assistant, current_page, TRUE);
@@ -96,12 +96,12 @@ create_page1 (GtkWidget *assistant)
   box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
 
   label = gtk_label_new ("You must fill out this entry to continue:");
-  gtk_box_pack_start (GTK_BOX (box), label);
+  gtk_container_add (GTK_CONTAINER (box), label);
 
   entry = gtk_entry_new ();
   gtk_entry_set_activates_default (GTK_ENTRY (entry), TRUE);
   gtk_widget_set_valign (entry, GTK_ALIGN_CENTER);
-  gtk_box_pack_start (GTK_BOX (box), entry);
+  gtk_container_add (GTK_CONTAINER (box), entry);
   g_signal_connect (G_OBJECT (entry), "changed",
                     G_CALLBACK (on_entry_changed), assistant);
 
@@ -119,7 +119,7 @@ create_page2 (GtkWidget *assistant)
 
   checkbutton = gtk_check_button_new_with_label ("This is optional data, you may continue "
                                                  "even if you do not check this");
-  gtk_box_pack_start (GTK_BOX (box), checkbutton);
+  gtk_container_add (GTK_CONTAINER (box), checkbutton);
 
   gtk_assistant_append_page (GTK_ASSISTANT (assistant), box);
   gtk_assistant_set_page_complete (GTK_ASSISTANT (assistant), box, TRUE);

demos/gtk-demo/blendmodes.ui

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <requires lib="gtk+" version="3.20"/>
   <object class="GtkWindow" id="window">
@@ -54,269 +53,275 @@
             <property name="vhomogeneous">0</property>
             <property name="transition-type">crossfade</property>
             <child>
-              <object class="GtkGrid">
-                <property name="halign">center</property>
-                <property name="valign">center</property>
-                <property name="vexpand">1</property>
-                <property name="row-spacing">12</property>
-                <property name="column-spacing">12</property>
-                <child>
-                  <object class="GtkLabel">
-                    <property name="label" translatable="yes">Duck</property>
-                  </object>
-                  <packing>
-                    <property name="left-attach">0</property>
-                    <property name="top-attach">0</property>
-                  </packing>
-                </child>
-                <child>
-                  <object class="GtkLabel">
-                    <property name="label" translatable="yes">Background</property>
-                  </object>
-                  <packing>
-                    <property name="left-attach">1</property>
-                    <property name="top-attach">0</property>
-                  </packing>
-                </child>
-                <child>
-                  <object class="GtkImage">
-                    <style>
-                      <class name="duck"/>
-                    </style>
-                  </object>
-                  <packing>
-                    <property name="left-attach">0</property>
-                    <property name="top-attach">1</property>
-                  </packing>
-                </child>
-                <child>
-                  <object class="GtkImage">
-                    <style>
-                      <class name="gradient"/>
-                    </style>
-                  </object>
-                  <packing>
-                    <property name="left-attach">1</property>
-                    <property name="top-attach">1</property>
-                  </packing>
-                </child>
-                <child>
-                  <object class="GtkLabel">
-                    <property name="label" translatable="yes">
-Blended picture</property>
-                  </object>
-                  <packing>
-                    <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="halign">center</property>
-                    <style>
-                      <class name="blend0"/>
-                    </style>
-                  </object>
-                  <packing>
-                    <property name="left-attach">0</property>
-                    <property name="top-attach">3</property>
-                    <property name="width">2</property>
-                  </packing>
-                </child>
-              </object>
-              <packing>
+              <object class="GtkStackPage">
                 <property name="name">page0</property>
                 <property name="title" translatable="yes">Ducky</property>
-              </packing>
+                <property name="child">
+                  <object class="GtkGrid">
+                    <property name="halign">center</property>
+                    <property name="valign">center</property>
+                    <property name="vexpand">1</property>
+                    <property name="row-spacing">12</property>
+                    <property name="column-spacing">12</property>
+                    <child>
+                      <object class="GtkLabel">
+                        <property name="label" translatable="yes">Duck</property>
+                      </object>
+                      <packing>
+                        <property name="left-attach">0</property>
+                        <property name="top-attach">0</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkLabel">
+                        <property name="label" translatable="yes">Background</property>
+                      </object>
+                      <packing>
+                        <property name="left-attach">1</property>
+                        <property name="top-attach">0</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkImage">
+                        <style>
+                          <class name="duck"/>
+                        </style>
+                      </object>
+                      <packing>
+                        <property name="left-attach">0</property>
+                        <property name="top-attach">1</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkImage">
+                        <style>
+                          <class name="gradient"/>
+                        </style>
+                      </object>
+                      <packing>
+                        <property name="left-attach">1</property>
+                        <property name="top-attach">1</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkLabel">
+                        <property name="label" translatable="yes">
+Blended picture</property>
+                      </object>
+                      <packing>
+                        <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="halign">center</property>
+                        <style>
+                          <class name="blend0"/>
+                        </style>
+                      </object>
+                      <packing>
+                        <property name="left-attach">0</property>
+                        <property name="top-attach">3</property>
+                        <property name="width">2</property>
+                      </packing>
+                    </child>
+                  </object>
+                </property>
+              </object>
             </child>
             <child>
-              <object class="GtkGrid">
-                <property name="halign">center</property>
-                <property name="valign">center</property>
-                <property name="vexpand">1</property>
-                <property name="row-spacing">12</property>
-                <property name="column-spacing">12</property>
-                <child>
-                  <object class="GtkLabel">
-                    <property name="label" translatable="yes">Red</property>
-                  </object>
-                  <packing>
-                    <property name="left-attach">0</property>
-                    <property name="top-attach">0</property>
-                  </packing>
-                </child>
-                <child>
-                  <object class="GtkLabel">
-                    <property name="label" translatable="yes">Blue</property>
-                  </object>
-                  <packing>
-                    <property name="left-attach">1</property>
-                    <property name="top-attach">0</property>
-                  </packing>
-                </child>
-                <child>
-                  <object class="GtkImage">
-                    <style>
-                      <class name="red"/>
-                    </style>
-                  </object>
-                  <packing>
-                    <property name="left-attach">0</property>
-                    <property name="top-attach">1</property>
-                  </packing>
-                </child>
-                <child>
-                  <object class="GtkImage">
-                    <style>
-                      <class name="blue"/>
-                    </style>
-                  </object>
-                  <packing>
-                    <property name="left-attach">1</property>
-                    <property name="top-attach">1</property>
-                  </packing>
-                </child>
-                <child>
-                  <object class="GtkLabel">
-                    <property name="label" translatable="yes">
-Blended picture</property>
-                  </object>
-                  <packing>
-                    <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="halign">center</property>
-                    <style>
-                      <class name="blend1"/>
-                    </style>
-                  </object>
-                  <packing>
-                    <property name="left-attach">0</property>
-                    <property name="top-attach">3</property>
-                    <property name="width">2</property>
-                  </packing>
-                </child>
-              </object>
-              <packing>
+              <object class="GtkStackPage">
                 <property name="name">page1</property>
                 <property name="title" translatable="yes">Blends</property>
-              </packing>
+                <property name="child">
+                  <object class="GtkGrid">
+                    <property name="halign">center</property>
+                    <property name="valign">center</property>
+                    <property name="vexpand">1</property>
+                    <property name="row-spacing">12</property>
+                    <property name="column-spacing">12</property>
+                    <child>
+                      <object class="GtkLabel">
+                        <property name="label" translatable="yes">Red</property>
+                      </object>
+                      <packing>
+                        <property name="left-attach">0</property>
+                        <property name="top-attach">0</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkLabel">
+                        <property name="label" translatable="yes">Blue</property>
+                      </object>
+                      <packing>
+                        <property name="left-attach">1</property>
+                        <property name="top-attach">0</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkImage">
+                        <style>
+                          <class name="red"/>
+                        </style>
+                      </object>
+                      <packing>
+                        <property name="left-attach">0</property>
+                        <property name="top-attach">1</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkImage">
+                        <style>
+                          <class name="blue"/>
+                        </style>
+                      </object>
+                      <packing>
+                        <property name="left-attach">1</property>
+                        <property name="top-attach">1</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkLabel">
+                        <property name="label" translatable="yes">
+Blended picture</property>
+                      </object>
+                      <packing>
+                        <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="halign">center</property>
+                        <style>
+                          <class name="blend1"/>
+                        </style>
+                      </object>
+                      <packing>
+                        <property name="left-attach">0</property>
+                        <property name="top-attach">3</property>
+                        <property name="width">2</property>
+                      </packing>
+                    </child>
+                  </object>
+                </property>
+              </object>
             </child>
             <child>
-              <object class="GtkGrid">
-                <property name="halign">center</property>
-                <property name="valign">center</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">
-                    <style>
-                      <class name="cyan"/>
-                    </style>
-                  </object>
-                  <packing>
-                    <property name="left-attach">0</property>
-                    <property name="top-attach">1</property>
-                  </packing>
-                </child>
-                <child>
-                  <object class="GtkImage">
-                    <style>
-                      <class name="magenta"/>
-                    </style>
-                  </object>
-                  <packing>
-                    <property name="left-attach">1</property>
-                    <property name="top-attach">1</property>
-                  </packing>
-                </child>
-                <child>
-                  <object class="GtkImage">
-                    <style>
-                      <class name="yellow"/>
-                    </style>
-                  </object>
-                  <packing>
-                    <property name="left-attach">0</property>
-                    <property name="top-attach">3</property>
-                  </packing>
-                </child>
-                <child>
-                  <object class="GtkImage">
-                    <property name="halign">center</property>
-                    <style>
-                      <class name="blend2"/>
-                    </style>
-                  </object>
-                  <packing>
-                    <property name="left-attach">1</property>
-                    <property name="top-attach">3</property>
-                  </packing>
-                </child>
-                <child>
-                  <object class="GtkLabel">
-                    <property name="label" translatable="yes">Cyan</property>
-                    <property name="xalign">0</property>
-                    <style>
-                      <class name="dim-label"/>
-                    </style>
-                  </object>
-                  <packing>
-                    <property name="left-attach">0</property>
-                    <property name="top-attach">0</property>
-                  </packing>
-                </child>
-                <child>
-                  <object class="GtkLabel">
-                    <property name="label" translatable="yes">Magenta</property>
-                    <property name="xalign">0</property>
-                    <style>
-                      <class name="dim-label"/>
-                    </style>
-                  </object>
-                  <packing>
-                    <property name="left-attach">1</property>
-                    <property name="top-attach">0</property>
-                  </packing>
-                </child>
-                <child>
-                  <object class="GtkLabel">
-                    <property name="label" translatable="yes">Yellow</property>
-                    <property name="xalign">0</property>
-                    <style>
-                      <class name="dim-label"/>
-                    </style>
-                  </object>
-                  <packing>
-                    <property name="left-attach">0</property>
-                    <property name="top-attach">2</property>
-                  </packing>
-                </child>
-                <child>
-                  <object class="GtkLabel">
-                    <property name="label" translatable="yes">Blended picture</property>
-                    <property name="xalign">0</property>
-                    <attributes>
-                      <attribute name="weight" value="bold"/>
-                    </attributes>
-                  </object>
-                  <packing>
-                    <property name="left-attach">1</property>
-                    <property name="top-attach">2</property>
-                  </packing>
-                </child>
-              </object>
-              <packing>
+              <object class="GtkStackPage">
                 <property name="name">page2</property>
                 <property name="title" translatable="yes">CMYK</property>
-              </packing>
+                <property name="child">
+                  <object class="GtkGrid">
+                    <property name="halign">center</property>
+                    <property name="valign">center</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">
+                        <style>
+                          <class name="cyan"/>
+                        </style>
+                      </object>
+                      <packing>
+                        <property name="left-attach">0</property>
+                        <property name="top-attach">1</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkImage">
+                        <style>
+                          <class name="magenta"/>
+                        </style>
+                      </object>
+                      <packing>
+                        <property name="left-attach">1</property>
+                        <property name="top-attach">1</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkImage">
+                        <style>
+                          <class name="yellow"/>
+                        </style>
+                      </object>
+                      <packing>
+                        <property name="left-attach">0</property>
+                        <property name="top-attach">3</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkImage">
+                        <property name="halign">center</property>
+                        <style>
+                          <class name="blend2"/>
+                        </style>
+                      </object>
+                      <packing>
+                        <property name="left-attach">1</property>
+                        <property name="top-attach">3</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkLabel">
+                        <property name="label" translatable="yes">Cyan</property>
+                        <property name="xalign">0</property>
+                        <style>
+                          <class name="dim-label"/>
+                        </style>
+                      </object>
+                      <packing>
+                        <property name="left-attach">0</property>
+                        <property name="top-attach">0</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkLabel">
+                        <property name="label" translatable="yes">Magenta</property>
+                        <property name="xalign">0</property>
+                        <style>
+                          <class name="dim-label"/>
+                        </style>
+                      </object>
+                      <packing>
+                        <property name="left-attach">1</property>
+                        <property name="top-attach">0</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkLabel">
+                        <property name="label" translatable="yes">Yellow</property>
+                        <property name="xalign">0</property>
+                        <style>
+                          <class name="dim-label"/>
+                        </style>
+                      </object>
+                      <packing>
+                        <property name="left-attach">0</property>
+                        <property name="top-attach">2</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkLabel">
+                        <property name="label" translatable="yes">Blended picture</property>
+                        <property name="xalign">0</property>
+                        <attributes>
+                          <attribute name="weight" value="bold"></attribute>
+                        </attributes>
+                      </object>
+                      <packing>
+                        <property name="left-attach">1</property>
+                        <property name="top-attach">2</property>
+                      </packing>
+                    </child>
+                  </object>
+                </property>
+              </object>
             </child>
           </object>
           <packing>
@@ -326,7 +331,6 @@ Blended picture</property>
         </child>
       </object>
     </child>
-    <child type="titlebar">
-    </child>
+    <child type="titlebar"/>
   </object>
 </interface>

demos/gtk-demo/bluroverlay.c

@@ -0,0 +1,482 @@
+/*
+ * bluroverlay.c
+ * This file is part of gtk
+ *
+ * Copyright (C) 2011 - Ignacio Casal Quinteiro, Mike Krüger
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "bluroverlay.h"
+
+/*
+ * This is a cut-down copy of gtkoverlay.c with a custom snapshot
+ * function that support a limited form of blur-under.
+ */
+typedef struct _BlurOverlayChild BlurOverlayChild;
+
+struct _BlurOverlayChild
+{
+  double blur;
+};
+
+enum {
+  GET_CHILD_POSITION,
+  LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+static GQuark child_data_quark = 0;
+
+G_DEFINE_TYPE (BlurOverlay, blur_overlay, GTK_TYPE_BIN)
+
+static void
+blur_overlay_set_overlay_child (GtkWidget       *widget,
+                               BlurOverlayChild *child_data)
+{
+  g_object_set_qdata_full (G_OBJECT (widget), child_data_quark, child_data, g_free);
+}
+
+static BlurOverlayChild *
+blur_overlay_get_overlay_child (GtkWidget *widget)
+{
+  return (BlurOverlayChild *) g_object_get_qdata (G_OBJECT (widget), child_data_quark);
+}
+
+static void
+blur_overlay_measure (GtkWidget      *widget,
+                     GtkOrientation  orientation,
+                     int             for_size,
+                     int            *minimum,
+                     int            *natural,
+                     int            *minimum_baseline,
+                     int            *natural_baseline)
+{
+  GtkWidget *child;
+
+  for (child = gtk_widget_get_first_child (widget);
+       child != NULL;
+       child = gtk_widget_get_next_sibling (child))
+    {
+      int child_min, child_nat, child_min_baseline, child_nat_baseline;
+
+      gtk_widget_measure (child,
+                          orientation,
+                          for_size,
+                          &child_min, &child_nat,
+                          &child_min_baseline, &child_nat_baseline);
+
+      *minimum = MAX (*minimum, child_min);
+      *natural = MAX (*natural, child_nat);
+      if (child_min_baseline > -1)
+        *minimum_baseline = MAX (*minimum_baseline, child_min_baseline);
+      if (child_nat_baseline > -1)
+        *natural_baseline = MAX (*natural_baseline, child_nat_baseline);
+    }
+}
+
+static void
+blur_overlay_compute_child_allocation (BlurOverlay      *overlay,
+                                      GtkWidget       *widget,
+                                      BlurOverlayChild *child,
+                                      GtkAllocation   *widget_allocation)
+{
+  GtkAllocation allocation;
+  gboolean result;
+
+  g_signal_emit (overlay, signals[GET_CHILD_POSITION],
+                 0, widget, &allocation, &result);
+
+  widget_allocation->x = allocation.x;
+  widget_allocation->y = allocation.y;
+  widget_allocation->width = allocation.width;
+  widget_allocation->height = allocation.height;
+}
+
+static GtkAlign
+effective_align (GtkAlign         align,
+                 GtkTextDirection direction)
+{
+  switch (align)
+    {
+    case GTK_ALIGN_START:
+      return direction == GTK_TEXT_DIR_RTL ? GTK_ALIGN_END : GTK_ALIGN_START;
+    case GTK_ALIGN_END:
+      return direction == GTK_TEXT_DIR_RTL ? GTK_ALIGN_START : GTK_ALIGN_END;
+    case GTK_ALIGN_FILL:
+    case GTK_ALIGN_CENTER:
+    case GTK_ALIGN_BASELINE:
+    default:
+      return align;
+    }
+}
+
+static void
+blur_overlay_child_update_style_classes (BlurOverlay *overlay,
+                                         GtkWidget *child,
+                                         GtkAllocation *child_allocation)
+{
+  int width, height;
+  GtkAlign valign, halign;
+  gboolean is_left, is_right, is_top, is_bottom;
+  gboolean has_left, has_right, has_top, has_bottom;
+  GtkStyleContext *context;
+
+  context = gtk_widget_get_style_context (child);
+  has_left = gtk_style_context_has_class (context, GTK_STYLE_CLASS_LEFT);
+  has_right = gtk_style_context_has_class (context, GTK_STYLE_CLASS_RIGHT);
+  has_top = gtk_style_context_has_class (context, GTK_STYLE_CLASS_TOP);
+  has_bottom = gtk_style_context_has_class (context, GTK_STYLE_CLASS_BOTTOM);
+
+  is_left = is_right = is_top = is_bottom = FALSE;
+
+  width = gtk_widget_get_width (GTK_WIDGET (overlay));
+  height = gtk_widget_get_height (GTK_WIDGET (overlay));
+
+  halign = effective_align (gtk_widget_get_halign (child),
+                            gtk_widget_get_direction (child));
+
+  if (halign == GTK_ALIGN_START)
+    is_left = (child_allocation->x == 0);
+  else if (halign == GTK_ALIGN_END)
+    is_right = (child_allocation->x + child_allocation->width == width);
+
+  valign = gtk_widget_get_valign (child);
+
+  if (valign == GTK_ALIGN_START)
+    is_top = (child_allocation->y == 0);
+  else if (valign == GTK_ALIGN_END)
+    is_bottom = (child_allocation->y + child_allocation->height == height);
+
+  if (has_left && !is_left)
+    gtk_style_context_remove_class (context, GTK_STYLE_CLASS_LEFT);
+  else if (!has_left && is_left)
+    gtk_style_context_add_class (context, GTK_STYLE_CLASS_LEFT);
+
+  if (has_right && !is_right)
+    gtk_style_context_remove_class (context, GTK_STYLE_CLASS_RIGHT);
+  else if (!has_right && is_right)
+    gtk_style_context_add_class (context, GTK_STYLE_CLASS_RIGHT);
+
+  if (has_top && !is_top)
+    gtk_style_context_remove_class (context, GTK_STYLE_CLASS_TOP);
+  else if (!has_top && is_top)
+    gtk_style_context_add_class (context, GTK_STYLE_CLASS_TOP);
+
+  if (has_bottom && !is_bottom)
+    gtk_style_context_remove_class (context, GTK_STYLE_CLASS_BOTTOM);
+  else if (!has_bottom && is_bottom)
+    gtk_style_context_add_class (context, GTK_STYLE_CLASS_BOTTOM);
+}
+
+static void
+blur_overlay_child_allocate (BlurOverlay      *overlay,
+                            GtkWidget       *widget,
+                            BlurOverlayChild *child)
+{
+  GtkAllocation child_allocation;
+
+  if (!gtk_widget_get_visible (widget))
+    return;
+
+  blur_overlay_compute_child_allocation (overlay, widget, child, &child_allocation);
+
+  blur_overlay_child_update_style_classes (overlay, widget, &child_allocation);
+  gtk_widget_size_allocate (widget, &child_allocation, -1);
+}
+
+static void
+blur_overlay_size_allocate (GtkWidget *widget,
+                           int        width,
+                           int        height,
+                           int        baseline)
+{
+  BlurOverlay *overlay = BLUR_OVERLAY (widget);
+  GtkWidget *child;
+  GtkWidget *main_widget;
+
+  main_widget = gtk_bin_get_child (GTK_BIN (overlay));
+  if (main_widget && gtk_widget_get_visible (main_widget))
+    gtk_widget_size_allocate (main_widget,
+                              &(GtkAllocation) {
+                                0, 0,
+                                width, height
+                              }, -1);
+
+  for (child = gtk_widget_get_first_child (widget);
+       child != NULL;
+       child = gtk_widget_get_next_sibling (child))
+    {
+      if (child != main_widget)
+        {
+          BlurOverlayChild *child_data = blur_overlay_get_overlay_child (child);
+          blur_overlay_child_allocate (overlay, child, child_data);
+        }
+    }
+}
+
+static gboolean
+blur_overlay_get_child_position (BlurOverlay    *overlay,
+                                 GtkWidget      *widget,
+                                 GtkAllocation  *alloc)
+{
+  GtkRequisition min, req;
+  GtkAlign halign;
+  GtkTextDirection direction;
+  int width, height;
+
+  gtk_widget_get_preferred_size (widget, &min, &req);
+  width = gtk_widget_get_width (GTK_WIDGET (overlay));
+  height = gtk_widget_get_height (GTK_WIDGET (overlay));
+
+  alloc->x = 0;
+  alloc->width = MAX (min.width, MIN (width, req.width));
+
+  direction = gtk_widget_get_direction (widget);
+
+  halign = gtk_widget_get_halign (widget);
+  switch (effective_align (halign, direction))
+    {
+    case GTK_ALIGN_START:
+      /* nothing to do */
+      break;
+    case GTK_ALIGN_FILL:
+      alloc->width = MAX (alloc->width, width);
+      break;
+    case GTK_ALIGN_CENTER:
+      alloc->x += width / 2 - alloc->width / 2;
+      break;
+    case GTK_ALIGN_END:
+      alloc->x += width - alloc->width;
+      break;
+    case GTK_ALIGN_BASELINE:
+    default:
+      g_assert_not_reached ();
+      break;
+    }
+
+  alloc->y = 0;
+  alloc->height = MAX  (min.height, MIN (height, req.height));
+
+  switch (gtk_widget_get_valign (widget))
+    {
+    case GTK_ALIGN_START:
+      /* nothing to do */
+      break;
+    case GTK_ALIGN_FILL:
+      alloc->height = MAX (alloc->height, height);
+      break;
+    case GTK_ALIGN_CENTER:
+      alloc->y += height / 2 - alloc->height / 2;
+      break;
+    case GTK_ALIGN_END:
+      alloc->y += height - alloc->height;
+      break;
+    case GTK_ALIGN_BASELINE:
+    default:
+      g_assert_not_reached ();
+      break;
+    }
+
+  return TRUE;
+}
+
+static void
+blur_overlay_add (GtkContainer *container,
+                  GtkWidget    *widget)
+{
+  BlurOverlay *overlay = BLUR_OVERLAY (container);
+  gtk_widget_insert_after (widget, GTK_WIDGET (container), NULL);
+  overlay->main_widget = widget;  
+}
+
+static void
+blur_overlay_remove (GtkContainer *container,
+                     GtkWidget    *widget)
+{
+  BlurOverlay *overlay = BLUR_OVERLAY (container);
+  gtk_widget_unparent (widget);
+  if (overlay->main_widget == widget)
+    overlay->main_widget = NULL;
+}
+
+static void
+blur_overlay_forall (GtkContainer *overlay,
+                    GtkCallback   callback,
+                    gpointer      callback_data)
+{
+  GtkWidget *child;
+
+  child = gtk_widget_get_first_child (GTK_WIDGET (overlay));
+  while (child != NULL)
+    {
+      GtkWidget *next = gtk_widget_get_next_sibling (child);
+
+      (* callback) (child, callback_data);
+
+      child = next;
+    }
+}
+
+static void
+blur_overlay_snapshot (GtkWidget   *widget,
+                      GtkSnapshot *snapshot)
+{
+  GtkWidget *main_widget;
+  GskRenderNode *main_widget_node = NULL;
+  GtkWidget *child;
+  GtkAllocation main_alloc;
+  cairo_region_t *clip = NULL;
+  int i;
+
+  main_widget = BLUR_OVERLAY (widget)->main_widget;
+  gtk_widget_get_allocation (widget, &main_alloc);
+
+  for (child = gtk_widget_get_first_child (widget);
+       child != NULL;
+       child = gtk_widget_get_next_sibling (child))
+    {
+      BlurOverlayChild *child_info = blur_overlay_get_overlay_child (child);
+      double blur = 0;
+      if (child_info)
+        blur = child_info->blur;
+
+      if (blur > 0)
+        {
+          GtkAllocation alloc;
+          graphene_rect_t bounds;
+
+          if (main_widget_node == NULL)
+            {
+              GtkSnapshot *child_snapshot;
+
+              child_snapshot = gtk_snapshot_new ();
+              gtk_widget_snapshot_child (widget, main_widget, child_snapshot);
+              main_widget_node = gtk_snapshot_free_to_node (child_snapshot);
+            }
+
+          gtk_widget_get_allocation (child, &alloc);
+          graphene_rect_init (&bounds, alloc.x, alloc.y, alloc.width, alloc.height);
+          gtk_snapshot_push_blur (snapshot, blur);
+          gtk_snapshot_push_clip (snapshot, &bounds);
+          gtk_snapshot_append_node (snapshot, main_widget_node);
+          gtk_snapshot_pop (snapshot);
+          gtk_snapshot_pop (snapshot);
+
+          if (clip == NULL)
+            {
+              cairo_rectangle_int_t rect;
+              rect.x = rect.y = 0;
+              rect.width = main_alloc.width;
+              rect.height = main_alloc.height;
+              clip = cairo_region_create_rectangle (&rect);
+            }
+          cairo_region_subtract_rectangle (clip, (cairo_rectangle_int_t *)&alloc);
+        }
+    }
+
+  if (clip == NULL)
+    {
+      for (child = gtk_widget_get_first_child (widget);
+           child != NULL;
+           child = gtk_widget_get_next_sibling (child))
+        {
+          gtk_widget_snapshot_child (widget, child, snapshot);
+        }
+      return;
+    }
+
+  for (i = 0; i < cairo_region_num_rectangles (clip); i++)
+    {
+      cairo_rectangle_int_t rect;
+      graphene_rect_t bounds;
+
+      cairo_region_get_rectangle (clip, i, &rect);
+      graphene_rect_init (&bounds, rect.x, rect.y, rect.width, rect.height);
+      gtk_snapshot_push_clip (snapshot, &bounds);
+      gtk_snapshot_append_node (snapshot, main_widget_node);
+      gtk_snapshot_pop (snapshot);
+    }
+
+  cairo_region_destroy (clip);
+
+  for (child = gtk_widget_get_first_child (widget);
+       child != NULL;
+       child = gtk_widget_get_next_sibling (child))
+    {
+      if (child != main_widget)
+        gtk_widget_snapshot_child (widget, child, snapshot);
+    }
+
+  gsk_render_node_unref (main_widget_node);
+}
+
+static void
+blur_overlay_class_init (BlurOverlayClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+  GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
+
+  widget_class->measure = blur_overlay_measure;
+  widget_class->size_allocate = blur_overlay_size_allocate;
+  widget_class->snapshot = blur_overlay_snapshot;
+
+  container_class->add = blur_overlay_add;
+  container_class->remove = blur_overlay_remove;
+  container_class->forall = blur_overlay_forall;
+
+  klass->get_child_position = blur_overlay_get_child_position;
+
+  signals[GET_CHILD_POSITION] =
+    g_signal_new ("get-child-position",
+                  G_TYPE_FROM_CLASS (object_class),
+                  G_SIGNAL_RUN_LAST,
+                  G_STRUCT_OFFSET (BlurOverlayClass, get_child_position),
+                  g_signal_accumulator_true_handled, NULL,
+                  NULL,
+                  G_TYPE_BOOLEAN, 2,
+                  GTK_TYPE_WIDGET,
+                  GDK_TYPE_RECTANGLE | G_SIGNAL_TYPE_STATIC_SCOPE);
+
+  child_data_quark = g_quark_from_static_string ("gtk-overlay-child-data");
+
+  gtk_widget_class_set_css_name (widget_class, "overlay");
+}
+
+static void
+blur_overlay_init (BlurOverlay *overlay)
+{
+  gtk_widget_set_has_surface (GTK_WIDGET (overlay), FALSE);
+}
+
+GtkWidget *
+blur_overlay_new (void)
+{
+  return g_object_new (BLUR_TYPE_OVERLAY, NULL);
+}
+
+void
+blur_overlay_add_overlay (BlurOverlay *overlay,
+                          GtkWidget   *widget,
+                          double       blur)
+{
+  BlurOverlayChild *child = g_new0 (BlurOverlayChild, 1);
+
+  gtk_widget_insert_before (widget, GTK_WIDGET (overlay), NULL);
+
+  child->blur = blur;
+
+  blur_overlay_set_overlay_child (widget, child);
+}

demos/gtk-demo/bluroverlay.h

@@ -0,0 +1,65 @@
+/*
+ * bluroverlay.h
+ * This file is part of gtk
+ *
+ * Copyright (C) 2011 - Ignacio Casal Quinteiro, Mike Krüger
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __BLUR_OVERLAY_H__
+#define __BLUR_OVERLAY_H__
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define BLUR_TYPE_OVERLAY             (blur_overlay_get_type ())
+#define BLUR_OVERLAY(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), BLUR_TYPE_OVERLAY, BlurOverlay))
+#define BLUR_OVERLAY_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), BLUR_TYPE_OVERLAY, BlurOverlayClass))
+#define BLUR_IS_OVERLAY(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), BLUR_TYPE_OVERLAY))
+#define BLUR_IS_OVERLAY_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), BLUR_TYPE_OVERLAY))
+#define BLUR_OVERLAY_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj), BLUR_TYPE_OVERLAY, BlurOverlayClass))
+
+typedef struct _BlurOverlay         BlurOverlay;
+typedef struct _BlurOverlayClass    BlurOverlayClass;
+
+struct _BlurOverlay
+{
+  GtkBin parent_instance;
+
+  GtkWidget *main_widget;
+};
+
+struct _BlurOverlayClass
+{
+  GtkBinClass parent_class;
+
+  gboolean (*get_child_position) (BlurOverlay   *overlay,
+                                  GtkWidget     *widget,
+                                  GtkAllocation *allocation);
+};
+
+GDK_AVAILABLE_IN_ALL
+GType      blur_overlay_get_type    (void) G_GNUC_CONST;
+GDK_AVAILABLE_IN_ALL
+GtkWidget *blur_overlay_new         (void);
+GDK_AVAILABLE_IN_ALL
+void       blur_overlay_add_overlay (BlurOverlay *overlay,
+                                     GtkWidget   *widget,
+                                     double       blur);
+
+G_END_DECLS
+
+#endif /* __BLUR_OVERLAY_H__ */

demos/gtk-demo/button_box.c

@@ -1,127 +0,0 @@
-/* Button Boxes
- *
- * The Button Box widgets are used to arrange buttons with padding.
- */
-
-#include <glib/gi18n.h>
-#include <gtk/gtk.h>
-
-static GtkWidget *
-create_bbox (gint  horizontal,
-             char *title,
-             gint  spacing,
-             gint  layout)
-{
-  GtkWidget *frame;
-  GtkWidget *bbox;
-  GtkWidget *button;
-
-  frame = gtk_frame_new (title);
-
-  if (horizontal)
-    bbox = gtk_button_box_new (GTK_ORIENTATION_HORIZONTAL);
-  else
-    bbox = gtk_button_box_new (GTK_ORIENTATION_VERTICAL);
-
-  g_object_set (bbox, "margin", 5, NULL);
-
-  gtk_container_add (GTK_CONTAINER (frame), bbox);
-
-  gtk_button_box_set_layout (GTK_BUTTON_BOX (bbox), layout);
-  gtk_box_set_spacing (GTK_BOX (bbox), spacing);
-
-  button = gtk_button_new_with_label (_("OK"));
-  gtk_container_add (GTK_CONTAINER (bbox), button);
-
-  button = gtk_button_new_with_label (_("Cancel"));
-  gtk_container_add (GTK_CONTAINER (bbox), button);
-
-  button = gtk_button_new_with_label (_("Help"));
-  gtk_container_add (GTK_CONTAINER (bbox), button);
-
-  return frame;
-}
-
-GtkWidget *
-do_button_box (GtkWidget *do_widget)
-{
-  static GtkWidget *window = NULL;
-  GtkWidget *main_vbox;
-  GtkWidget *vbox;
-  GtkWidget *hbox;
-  GtkWidget *frame_horz;
-  GtkWidget *frame_vert;
-
-  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), "Button Boxes");
-
-    g_signal_connect (window, "destroy",
-                      G_CALLBACK (gtk_widget_destroyed),
-                      &window);
-
-    main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
-    g_object_set (main_vbox, "margin", 10, NULL);
-    gtk_container_add (GTK_CONTAINER (window), main_vbox);
-
-    frame_horz = gtk_frame_new ("Horizontal Button Boxes");
-    gtk_widget_set_margin_top (frame_horz, 10);
-    gtk_widget_set_margin_bottom (frame_horz, 10);
-    gtk_box_pack_start (GTK_BOX (main_vbox), frame_horz);
-
-    vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 10);
-    g_object_set (vbox, "margin", 10, NULL);
-    gtk_container_add (GTK_CONTAINER (frame_horz), vbox);
-
-    gtk_box_pack_start (GTK_BOX (vbox),
-                        create_bbox (TRUE, "Spread", 40, GTK_BUTTONBOX_SPREAD));
-
-    gtk_box_pack_start (GTK_BOX (vbox),
-                        create_bbox (TRUE, "Edge", 40, GTK_BUTTONBOX_EDGE));
-
-    gtk_box_pack_start (GTK_BOX (vbox),
-                        create_bbox (TRUE, "Start", 40, GTK_BUTTONBOX_START));
-
-    gtk_box_pack_start (GTK_BOX (vbox),
-                        create_bbox (TRUE, "End", 40, GTK_BUTTONBOX_END));
-
-    gtk_box_pack_start (GTK_BOX (vbox),
-                        create_bbox (TRUE, "Center", 40, GTK_BUTTONBOX_CENTER));
-
-    gtk_box_pack_start (GTK_BOX (vbox),
-                        create_bbox (TRUE, "Expand", 0, GTK_BUTTONBOX_EXPAND));
-
-    frame_vert = gtk_frame_new ("Vertical Button Boxes");
-    gtk_box_pack_start (GTK_BOX (main_vbox), frame_vert);
-
-    hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
-    g_object_set (hbox, "margin", 10, NULL);
-    gtk_container_add (GTK_CONTAINER (frame_vert), hbox);
-
-    gtk_box_pack_start (GTK_BOX (hbox),
-                        create_bbox (FALSE, "Spread", 10, GTK_BUTTONBOX_SPREAD));
-
-    gtk_box_pack_start (GTK_BOX (hbox),
-                        create_bbox (FALSE, "Edge", 10, GTK_BUTTONBOX_EDGE));
-
-    gtk_box_pack_start (GTK_BOX (hbox),
-                        create_bbox (FALSE, "Start", 10, GTK_BUTTONBOX_START));
-
-    gtk_box_pack_start (GTK_BOX (hbox),
-                        create_bbox (FALSE, "End", 10, GTK_BUTTONBOX_END));
-    gtk_box_pack_start (GTK_BOX (hbox),
-                        create_bbox (FALSE, "Center", 10, GTK_BUTTONBOX_CENTER));
-    gtk_box_pack_start (GTK_BOX (hbox),
-                        create_bbox (FALSE, "Expand", 0, GTK_BUTTONBOX_EXPAND));
-  }
-
-  if (!gtk_widget_get_visible (window))
-    gtk_widget_show (window);
-  else
-    gtk_widget_destroy (window);
-
-  return window;
-}

demos/gtk-demo/changedisplay.c

@@ -7,7 +7,7 @@
  * computers, as long as there is a network connection to the
  * computer where the application is running.
  *
- * Only some of the windowing systems where GTK+ runs have the
+ * Only some of the windowing systems where GTK runs have the
  * concept of multiple displays. (The X Window System is the
  * main example.) Other windowing systems can only handle one
  * keyboard and mouse, and combine all monitors into
@@ -71,30 +71,22 @@ find_toplevel_at_pointer (GdkDisplay *display)
   GdkSurface *pointer_window;
   GtkWidget *widget = NULL;
 
-  pointer_window = gdk_device_get_surface_at_position (gtk_get_current_event_device (),
-                                                      NULL, NULL);
+  pointer_window = gdk_device_get_surface_at_position (gtk_get_current_event_device (), NULL, NULL);
 
-  /* 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_surface_get_user_data (pointer_window, &widget_ptr);
-      widget = widget_ptr;
-    }
+    widget = GTK_WIDGET (gtk_root_get_for_surface (pointer_window));
 
-  return widget ? gtk_widget_get_toplevel (widget) : NULL;
+  return widget;
 }
 
-static gboolean
-release_event_cb (GtkWidget *widget,
-                  GdkEvent  *event,
-                  gboolean  *clicked)
+static void
+released_cb (GtkGestureMultiPress *gesture,
+             guint                 n_press,
+             gdouble               x,
+             gdouble               y,
+             gboolean             *clicked)
 {
-  if (gdk_event_get_event_type (event) == GDK_BUTTON_RELEASE)
-    *clicked = TRUE;
-  return TRUE;
+  *clicked = TRUE;
 }
 
 /* Asks the user to click on a window, then waits for them click
@@ -132,10 +124,12 @@ query_for_toplevel (GdkDisplay *display,
                      GDK_SEAT_CAPABILITY_ALL_POINTING,
                      FALSE, cursor, NULL, NULL, NULL) == GDK_GRAB_SUCCESS)
     {
+      GtkGesture *gesture = gtk_gesture_multi_press_new ();
       gboolean clicked = FALSE;
 
-      g_signal_connect (popup, "event",
-                        G_CALLBACK (release_event_cb), &clicked);
+      g_signal_connect (gesture, "released",
+                        G_CALLBACK (released_cb), &clicked);
+      gtk_widget_add_controller (popup, GTK_EVENT_CONTROLLER (gesture));
 
       /* 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
@@ -144,6 +138,8 @@ query_for_toplevel (GdkDisplay *display,
       while (!clicked)
         g_main_context_iteration (NULL, TRUE);
 
+      gdk_seat_ungrab (gdk_device_get_seat (device));
+
       toplevel = find_toplevel_at_pointer (display);
       if (toplevel == popup)
         toplevel = NULL;
@@ -311,7 +307,7 @@ create_frame (ChangeDisplayInfo *info,
                                   GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
   gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrollwin),
                                        GTK_SHADOW_IN);
-  gtk_box_pack_start (GTK_BOX (hbox), scrollwin);
+  gtk_container_add (GTK_CONTAINER (hbox), scrollwin);
 
   *tree_view = gtk_tree_view_new ();
   gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (*tree_view), FALSE);
@@ -321,7 +317,7 @@ create_frame (ChangeDisplayInfo *info,
   gtk_tree_selection_set_mode (selection, GTK_SELECTION_BROWSE);
 
   *button_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
-  gtk_box_pack_start (GTK_BOX (hbox), *button_vbox);
+  gtk_container_add (GTK_CONTAINER (hbox), *button_vbox);
 
   if (!info->size_group)
     info->size_group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
@@ -361,11 +357,11 @@ create_display_frame (ChangeDisplayInfo *info)
 
   button = left_align_button_new ("_Open...");
   g_signal_connect (button, "clicked",  G_CALLBACK (open_display_cb), info);
-  gtk_box_pack_start (GTK_BOX (button_vbox), button);
+  gtk_container_add (GTK_CONTAINER (button_vbox), button);
 
   button = left_align_button_new ("_Close");
   g_signal_connect (button, "clicked",  G_CALLBACK (close_display_cb), info);
-  gtk_box_pack_start (GTK_BOX (button_vbox), button);
+  gtk_container_add (GTK_CONTAINER (button_vbox), button);
 
   info->display_model = (GtkTreeModel *)gtk_list_store_new (DISPLAY_NUM_COLUMNS,
                                                             G_TYPE_STRING,
@@ -538,10 +534,10 @@ do_changedisplay (GtkWidget *do_widget)
 
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
       g_object_set (vbox, "margin", 8, NULL);
-      gtk_box_pack_start (GTK_BOX (content_area), vbox);
+      gtk_container_add (GTK_CONTAINER (content_area), vbox);
 
       frame = create_display_frame (info);
-      gtk_box_pack_start (GTK_BOX (vbox), frame);
+      gtk_container_add (GTK_CONTAINER (vbox), frame);
 
       initialize_displays (info);
 

demos/gtk-demo/clipboard.c

@@ -28,7 +28,7 @@ copy_button_clicked (GtkWidget *button,
   clipboard = gtk_widget_get_clipboard (entry);
 
   /* Set clipboard text */
-  gdk_clipboard_set_text (clipboard, gtk_entry_get_text (GTK_ENTRY (entry)));
+  gdk_clipboard_set_text (clipboard, gtk_editable_get_text (GTK_EDITABLE (entry)));
 }
 
 void
@@ -50,7 +50,7 @@ paste_received (GObject      *source_object,
   if (text)
     {
       /* Set the entry text */
-      gtk_entry_set_text (GTK_ENTRY (entry), text);
+      gtk_editable_set_text (GTK_EDITABLE (entry), text);
       g_free (text);
     }
   else
@@ -120,7 +120,7 @@ get_image_paintable (GtkImage *image)
 
 static void
 drag_begin (GtkWidget      *widget,
-            GdkDragContext *context,
+            GdkDrag        *drag,
             gpointer        data)
 {
   GdkPaintable *paintable;
@@ -128,17 +128,16 @@ drag_begin (GtkWidget      *widget,
   paintable = get_image_paintable (GTK_IMAGE (widget));
   if (paintable)
     {
-      gtk_drag_set_icon_paintable (context, paintable, -2, -2);
+      gtk_drag_set_icon_paintable (drag, paintable, -2, -2);
       g_object_unref (paintable);
     }
 }
 
 void
 drag_data_get (GtkWidget        *widget,
-               GdkDragContext   *context,
+               GdkDrag          *drag,
                GtkSelectionData *selection_data,
                guint             info,
-               guint             time,
                gpointer          data)
 {
   GdkPaintable *paintable;
@@ -150,9 +149,8 @@ drag_data_get (GtkWidget        *widget,
 
 static void
 drag_data_received (GtkWidget        *widget,
-                    GdkDragContext   *context,
+                    GdkDrop          *drop,
                     GtkSelectionData *selection_data,
-                    guint32           time,
                     gpointer          data)
 {
   if (gtk_selection_data_get_length (selection_data) > 0)
@@ -261,45 +259,45 @@ do_clipboard (GtkWidget *do_widget)
 
       label = gtk_label_new ("\"Copy\" will copy the text\nin the entry to the clipboard");
 
-      gtk_box_pack_start (GTK_BOX (vbox), label);
+      gtk_container_add (GTK_CONTAINER (vbox), label);
 
       hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
       g_object_set (hbox, "margin", 8, NULL);
-      gtk_box_pack_start (GTK_BOX (vbox), hbox);
+      gtk_container_add (GTK_CONTAINER (vbox), hbox);
 
       /* Create the first entry */
       entry = gtk_entry_new ();
-      gtk_box_pack_start (GTK_BOX (hbox), entry);
+      gtk_container_add (GTK_CONTAINER (hbox), entry);
 
       /* Create the button */
       button = gtk_button_new_with_mnemonic (_("_Copy"));
-      gtk_box_pack_start (GTK_BOX (hbox), button);
+      gtk_container_add (GTK_CONTAINER (hbox), button);
       g_signal_connect (button, "clicked",
                         G_CALLBACK (copy_button_clicked), entry);
 
       label = gtk_label_new ("\"Paste\" will paste the text from the clipboard to the entry");
-      gtk_box_pack_start (GTK_BOX (vbox), label);
+      gtk_container_add (GTK_CONTAINER (vbox), label);
 
       hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
       g_object_set (hbox, "margin", 8, NULL);
-      gtk_box_pack_start (GTK_BOX (vbox), hbox);
+      gtk_container_add (GTK_CONTAINER (vbox), hbox);
 
       /* Create the second entry */
       entry = gtk_entry_new ();
-      gtk_box_pack_start (GTK_BOX (hbox), entry);
+      gtk_container_add (GTK_CONTAINER (hbox), entry);
 
       /* Create the button */
       button = gtk_button_new_with_mnemonic (_("_Paste"));
-      gtk_box_pack_start (GTK_BOX (hbox), button);
+      gtk_container_add (GTK_CONTAINER (hbox), button);
       g_signal_connect (button, "clicked",
                         G_CALLBACK (paste_button_clicked), entry);
 
       label = gtk_label_new ("Images can be transferred via the clipboard, too");
-      gtk_box_pack_start (GTK_BOX (vbox), label);
+      gtk_container_add (GTK_CONTAINER (vbox), label);
 
       hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
       g_object_set (hbox, "margin", 8, NULL);
-      gtk_box_pack_start (GTK_BOX (vbox), hbox);
+      gtk_container_add (GTK_CONTAINER (vbox), hbox);
 
       /* Create the first image */
       image = gtk_image_new_from_icon_name ("dialog-warning");
@@ -321,10 +319,10 @@ do_clipboard (GtkWidget *do_widget)
                         G_CALLBACK (drag_data_received), image);
 
       /* context menu on image */
-      gesture = gtk_gesture_multi_press_new (image);
+      gesture = gtk_gesture_multi_press_new ();
       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);
+      gtk_widget_add_controller (image, GTK_EVENT_CONTROLLER (gesture));
 
       /* Create the second image */
       image = gtk_image_new_from_icon_name ("process-stop");
@@ -346,10 +344,10 @@ do_clipboard (GtkWidget *do_widget)
                         G_CALLBACK (drag_data_received), image);
 
       /* context menu on image */
-      gesture = gtk_gesture_multi_press_new (image);
+      gesture = gtk_gesture_multi_press_new ();
       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);
+      gtk_widget_add_controller (image, GTK_EVENT_CONTROLLER (gesture));
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/colorsel.c

@@ -1,7 +1,7 @@
 /* Color Chooser
  *
  * A GtkColorChooser lets the user choose a color. There are several
- * implementations of the GtkColorChooser interface in GTK+. The
+ * implementations of the GtkColorChooser interface in GTK. The
  * GtkColorChooserDialog is a prebuilt dialog containing a
  * GtkColorChooserWidget.
  */
@@ -88,7 +88,7 @@ do_colorsel (GtkWidget *do_widget)
 
       frame = gtk_frame_new (NULL);
       gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
-      gtk_box_pack_start (GTK_BOX (vbox), frame);
+      gtk_container_add (GTK_CONTAINER (vbox), frame);
 
       da = gtk_drawing_area_new ();
       gtk_drawing_area_set_content_width (GTK_DRAWING_AREA (da), 200);
@@ -101,7 +101,7 @@ do_colorsel (GtkWidget *do_widget)
       gtk_widget_set_halign (button, GTK_ALIGN_END);
       gtk_widget_set_valign (button, GTK_ALIGN_CENTER);
 
-      gtk_box_pack_start (GTK_BOX (vbox), button);
+      gtk_container_add (GTK_CONTAINER (vbox), button);
 
       g_signal_connect (button, "clicked",
                         G_CALLBACK (change_color_callback), NULL);

demos/gtk-demo/combobox.c

@@ -144,7 +144,7 @@ create_capital_store (void)
     { NULL, "Jackson" },
     { NULL, "Jefferson City" },
     { NULL, "Juneau" },
-    { "K - O" },
+    { "K - O", NULL },
     { NULL, "Lansing" },
     { NULL, "Lincoln" },
     { NULL, "Little Rock" },
@@ -154,7 +154,7 @@ create_capital_store (void)
     { NULL, "Nashville" },
     { NULL, "Oklahoma City" },
     { NULL, "Olympia" },
-    { NULL, "P - S" },
+    { "P - S", NULL },
     { NULL, "Phoenix" },
     { NULL, "Pierre" },
     { NULL, "Providence" },
@@ -256,7 +256,7 @@ mask_entry_set_background (MaskEntry *entry)
 {
   if (entry->mask)
     {
-      if (!g_regex_match_simple (entry->mask, gtk_entry_get_text (GTK_ENTRY (entry)), 0, 0))
+      if (!g_regex_match_simple (entry->mask, gtk_editable_get_text (GTK_EDITABLE (entry)), 0, 0))
         {
           PangoAttrList *attrs;
 
@@ -326,7 +326,7 @@ do_combobox (GtkWidget *do_widget)
      *  insensitive rows
      */
     frame = gtk_frame_new ("Items with icons");
-    gtk_box_pack_start (GTK_BOX (vbox), frame);
+    gtk_container_add (GTK_CONTAINER (vbox), frame);
 
     box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
     g_object_set (box, "margin", 5, NULL);
@@ -367,7 +367,7 @@ do_combobox (GtkWidget *do_widget)
     /* A combobox demonstrating trees.
      */
     frame = gtk_frame_new ("Where are we ?");
-    gtk_box_pack_start (GTK_BOX (vbox), frame);
+    gtk_container_add (GTK_CONTAINER (vbox), frame);
 
     box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
     g_object_set (box, "margin", 5, NULL);
@@ -395,7 +395,7 @@ do_combobox (GtkWidget *do_widget)
 
     /* A GtkComboBoxEntry with validation */
     frame = gtk_frame_new ("Editable");
-    gtk_box_pack_start (GTK_BOX (vbox), frame);
+    gtk_container_add (GTK_CONTAINER (vbox), frame);
 
     box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
     g_object_set (box, "margin", 5, NULL);
@@ -413,7 +413,7 @@ do_combobox (GtkWidget *do_widget)
 
     /* A combobox with string IDs */
     frame = gtk_frame_new ("String IDs");
-    gtk_box_pack_start (GTK_BOX (vbox), frame);
+    gtk_container_add (GTK_CONTAINER (vbox), frame);
 
     box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
     g_object_set (box, "margin", 5, NULL);

demos/gtk-demo/cursors.ui

@@ -1,6 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <interface>
-  <!-- interface-requires gtk+ 3.94 -->
   <object class="GdkCursor" id="default_cursor">
     <property name="name">default</property>
   </object>

demos/gtk-demo/data/scalable/apps/org.gtk.Demo.svg

@@ -0,0 +1 @@
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demos/gtk-demo/data/symbolic-source.svg

@@ -1,29 +0,0 @@
-<?xml version='1.0' encoding='UTF-8' standalone='no'?>
-<!-- Created with Inkscape (http://www.inkscape.org/) -->
-
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-  <metadata id='metadata90'>
-    <rdf:RDF>
-      <cc:Work rdf:about=''>
-        <dc:format>image/svg+xml</dc:format>
-        <dc:type rdf:resource='http://purl.org/dc/dcmitype/StillImage'/>
-        <dc:title>Gnome Symbolic Icon Theme</dc:title>
-      </cc:Work>
-    </rdf:RDF>
-  </metadata>
-  <sodipodi:namedview inkscape:bbox-paths='true' bordercolor='#666666' borderopacity='1' inkscape:current-layer='layer9' inkscape:cx='-12.5126' inkscape:cy='-0.73412416' gridtolerance='10' inkscape:guide-bbox='true' guidetolerance='10' id='namedview88' inkscape:object-nodes='false' inkscape:object-paths='false' objecttolerance='10' pagecolor='#555753' inkscape:pageopacity='1' inkscape:pageshadow='2' showborder='false' showgrid='false' showguides='true' inkscape:snap-bbox='true' inkscape:snap-bbox-midpoints='false' inkscape:snap-global='true' inkscape:snap-grids='true' inkscape:snap-nodes='true' inkscape:snap-others='false' inkscape:snap-to-guides='true' inkscape:window-height='1375' inkscape:window-maximized='1' inkscape:window-width='2560' inkscape:window-x='0' inkscape:window-y='27' inkscape:zoom='5.6568542'>
-    <inkscape:grid empspacing='2' enabled='true' id='grid4866' originx='-182.99998px' originy='-251.99998px' snapvisiblegridlinesonly='true' spacingx='1px' spacingy='1px' type='xygrid' visible='true'/>
-  </sodipodi:namedview>
-  <title id='title9167'>Gnome Symbolic Icon Theme</title>
-  <defs id='defs7386'>
-    <linearGradient id='linearGradient7212' osb:paint='solid'>
-      <stop id='stop7214' offset='0' style='stop-color:#000000;stop-opacity:1;'/>
-    </linearGradient>
-  </defs>
-  <g inkscape:groupmode='layer' id='layer9' inkscape:label='apps' style='display:inline' transform='translate(-424.00018,35)'>
-    
-    <rect height='8.0000048' id='rect7866' style='opacity:0.3;color:#000000;fill:#bebebe;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:1.39999998;marker:none;visibility:visible;display:inline;overflow:visible;enable-background:new' transform='matrix(0.83205029,0.5547002,0,1,0,0)' width='7.2111053' x='510.78668' y='-314.33347'/>
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-  </g>
-</svg>

demos/gtk-demo/data/symbolic/apps/org.gtk.Demo-symbolic.svg

@@ -0,0 +1,114 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:osb="http://www.openswatchbook.org/uri/2009/osb"
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   sodipodi:docname="org.gtk.Demo-symbolic.svg"
+   height="16.03125"
+   id="svg7384"
+   inkscape:version="0.92.4 5da689c313, 2019-01-14"
+   version="1.1"
+   width="16">
+  <metadata
+     id="metadata90">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title>Gnome Symbolic Icon Theme</dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <sodipodi:namedview
+     inkscape:bbox-paths="true"
+     bordercolor="#666666"
+     borderopacity="1"
+     inkscape:current-layer="layer9"
+     inkscape:cx="0.53203442"
+     inkscape:cy="9.1822592"
+     gridtolerance="10"
+     inkscape:guide-bbox="true"
+     guidetolerance="10"
+     id="namedview88"
+     inkscape:object-nodes="false"
+     inkscape:object-paths="false"
+     objecttolerance="10"
+     pagecolor="#555753"
+     inkscape:pageopacity="1"
+     inkscape:pageshadow="2"
+     showborder="true"
+     showgrid="false"
+     showguides="true"
+     inkscape:snap-bbox="true"
+     inkscape:snap-bbox-midpoints="false"
+     inkscape:snap-global="true"
+     inkscape:snap-grids="true"
+     inkscape:snap-nodes="true"
+     inkscape:snap-others="false"
+     inkscape:snap-to-guides="true"
+     inkscape:window-height="1375"
+     inkscape:window-maximized="1"
+     inkscape:window-width="2560"
+     inkscape:window-x="0"
+     inkscape:window-y="27"
+     inkscape:zoom="1">
+    <inkscape:grid
+       empspacing="2"
+       enabled="true"
+       id="grid4866"
+       originx="-203"
+       originy="-251.96875"
+       snapvisiblegridlinesonly="true"
+       spacingx="1"
+       spacingy="1"
+       type="xygrid"
+       visible="true" />
+  </sodipodi:namedview>
+  <title
+     id="title9167">Gnome Symbolic Icon Theme</title>
+  <defs
+     id="defs7386">
+    <linearGradient
+       id="linearGradient7212"
+       osb:paint="solid">
+      <stop
+         id="stop7214"
+         offset="0"
+         style="stop-color:#000000;stop-opacity:1;" />
+    </linearGradient>
+  </defs>
+  <g
+     inkscape:groupmode="layer"
+     id="layer9"
+     inkscape:label="apps"
+     style="display:inline"
+     transform="translate(-444.0002,35)">
+    <path
+       style="display:inline;opacity:0.3;vector-effect:none;fill:#000000;fill-opacity:1;stroke:none;stroke-width:0.99999994;stroke-linecap:butt;stroke-linejoin:bevel;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none;marker-start:none;marker-mid:none;marker-end:none;paint-order:normal;enable-background:new"
+       d="m 457.97232,-31.569556 -5.96212,3.44224 -5.96215,-3.44224 v 0 l 5.96215,-3.44226 z"
+       id="path870-6"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="cccccc" />
+    <path
+       sodipodi:nodetypes="cccccc"
+       inkscape:connector-curvature="0"
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+       style="display:inline;opacity:1;vector-effect:none;fill:#000000;fill-opacity:1;stroke:none;stroke-width:0.99999994;stroke-linecap:butt;stroke-linejoin:bevel;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none;marker-start:none;marker-mid:none;marker-end:none;paint-order:normal;enable-background:new" />
+    <path
+       style="display:inline;opacity:0.60100002;vector-effect:none;fill:#000000;fill-opacity:1;stroke:none;stroke-width:0.99999994;stroke-linecap:butt;stroke-linejoin:bevel;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none;marker-start:none;marker-mid:none;marker-end:none;paint-order:normal;enable-background:new"
+       d="m 452.98577,-19.648086 5.99273,-3.42041 0.007,-6.97219 v 0 l -6.00018,3.4642 z"
+       id="path931"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="cccccc" />
+  </g>
+</svg>

demos/gtk-demo/demo.gresource.xml

@@ -105,9 +105,6 @@
     <file>gnome-fs-directory.png</file>
     <file>gnome-fs-regular.png</file>
   </gresource>
-  <gresource prefix="/stack">
-    <file>stack.ui</file>
-  </gresource>
   <gresource prefix="/shortcuts">
     <file>shortcuts.ui</file>
     <file>shortcuts-builder.ui</file>
@@ -115,6 +112,14 @@
     <file>shortcuts-clocks.ui</file>
     <file>shortcuts-boxes.ui</file>
   </gresource>
+  <gresource prefix="/sliding_puzzle">
+    <file>puzzlepiece.c</file>
+    <file>puzzlepiece.h</file>
+    <file>portland-rose.jpg</file>
+  </gresource>
+  <gresource prefix="/stack">
+    <file>stack.ui</file>
+  </gresource>
   <gresource prefix="/revealer">
     <file>revealer.ui</file>
   </gresource>
@@ -138,7 +143,6 @@
     <file>application_demo.c</file>
     <file>assistant.c</file>
     <file>builder.c</file>
-    <file>button_box.c</file>
     <file>changedisplay.c</file>
     <file>clipboard.c</file>
     <file>colorsel.c</file>
@@ -156,11 +160,9 @@
     <file>editable_cells.c</file>
     <file>entry_buffer.c</file>
     <file>entry_completion.c</file>
-    <file>event_axes.c</file>
     <file>expander.c</file>
     <file>filtermodel.c</file>
     <file>fishbowl.c</file>
-    <file>widgetbowl.c</file>
     <file>flowbox.c</file>
     <file>foreigndrawing.c</file>
     <file>font_features.c</file>
@@ -181,11 +183,13 @@
     <file>modelbutton.c</file>
     <file>overlay.c</file>
     <file>overlay2.c</file>
+    <file>paint.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>password_entry.c</file>
     <file>pickers.c</file>
     <file>pixbufs.c</file>
     <file>popover.c</file>
@@ -198,10 +202,12 @@
     <file>shortcuts.c</file>
     <file>sizegroup.c</file>
     <file>sidebar.c</file>
+    <file>sliding_puzzle.c</file>
     <file>stack.c</file>
     <file>spinbutton.c</file>
     <file>spinner.c</file>
     <file>tabs.c</file>
+    <file>tagged_entry.c</file>
     <file>textview.c</file>
     <file>textscroll.c</file>
     <file>theming_style_classes.c</file>
@@ -213,6 +219,9 @@
   <gresource prefix="/textview">
     <file>floppybuddy.gif</file>
   </gresource>
+  <gresource prefix="/tagged_entry">
+    <file>tagstyle.css</file>
+  </gresource>
   <gresource prefix="/listbox">
     <file>listbox.ui</file>
     <file>messages.txt</file>
@@ -243,6 +252,7 @@
   </gresource>
   <gresource prefix="/transparent">
     <file>portland-rose.jpg</file>
+    <file>bluroverlay.c</file>
   </gresource>
   <gresource prefix="/markup">
     <file>markup.txt</file>
@@ -256,4 +266,27 @@
   <gresource prefix="/dnd">
     <file>dnd.css</file>
   </gresource>
+  <gresource prefix="/tagged_entry">
+    <file>demotaggedentry.c</file>
+    <file>demotaggedentry.h</file>
+  </gresource>
+  <gresource prefix="/org/gtk/Demo">
+    <file>icons/16x16/actions/application-exit.png</file>
+    <file>icons/16x16/actions/document-new.png</file>
+    <file>icons/16x16/actions/document-open.png</file>
+    <file>icons/16x16/actions/document-save.png</file>
+    <file>icons/16x16/actions/edit-copy.png</file>
+    <file>icons/16x16/actions/edit-cut.png</file>
+    <file>icons/16x16/actions/edit-paste.png</file>
+    <file>icons/16x16/actions/process-stop.png</file>
+    <file>icons/16x16/actions/go-home.png</file>
+    <file>icons/16x16/actions/go-up.png</file>
+    <file>icons/16x16/actions/mail-send-receive-symbolic.symbolic.png</file>
+    <file>icons/16x16/actions/view-fullscreen-symbolic.symbolic.png</file>
+    <file>icons/16x16/actions/document-edit-symbolic.symbolic.png</file>
+    <file>icons/16x16/emotes/face-cool.png</file>
+    <file>icons/16x16/emotes/face-laugh-symbolic.symbolic.png</file>
+    <file>icons/16x16/status/battery-caution-charging-symbolic.symbolic.png</file>
+    <file>icons/16x16/categories/applications-other.png</file>
+  </gresource>
 </gresources>

demos/gtk-demo/demo.ui

@@ -1,5 +1,3 @@
-<?xml version="1.0" standalone="no"?>
-<!--*- mode: xml -*-->
 <interface>
   <object class="GtkListStore" id="liststore1">
     <columns>
@@ -76,8 +74,7 @@
                       </object>
                     </child>
                     <child>
-                      <object class="GtkSeparatorMenuItem">
-                      </object>
+                      <object class="GtkSeparatorMenuItem"/>
                     </child>
                     <child>
                       <object class="GtkMenuItem" id="quit_item">
@@ -174,8 +171,7 @@
               </object>
             </child>
             <child>
-              <object class="GtkSeparatorToolItem">
-              </object>
+              <object class="GtkSeparatorToolItem"/>
             </child>
             <child>
               <object class="GtkToolButton">
@@ -199,9 +195,6 @@
               </object>
             </child>
           </object>
-          <packing>
-            <property name="position">1</property>
-          </packing>
         </child>
         <child>
           <object class="GtkScrolledWindow" id="scrolledwindow1">
@@ -255,16 +248,9 @@
               </object>
             </child>
           </object>
-          <packing>
-            <property name="position">2</property>
-          </packing>
         </child>
         <child>
-          <object class="GtkStatusbar" id="statusbar1">
-          </object>
-          <packing>
-            <property name="position">3</property>
-          </packing>
+          <object class="GtkStatusbar" id="statusbar1"/>
         </child>
       </object>
     </child>

demos/gtk-demo/demotaggedentry.c

@@ -0,0 +1,493 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 2019 Red Hat, Inc.
+ *
+ * Authors:
+ * - Matthias Clasen <mclasen@redhat.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "demotaggedentry.h"
+
+#include <gtk/gtk.h>
+#include <gtk/gtk-a11y.h>
+
+typedef struct {
+  GtkWidget *box;
+  GtkWidget *entry;
+} DemoTaggedEntryPrivate;
+
+static void demo_tagged_entry_editable_init (GtkEditableInterface *iface);
+
+G_DEFINE_TYPE_WITH_CODE (DemoTaggedEntry, demo_tagged_entry, GTK_TYPE_WIDGET,
+                         G_ADD_PRIVATE (DemoTaggedEntry)
+                         G_IMPLEMENT_INTERFACE (GTK_TYPE_EDITABLE, demo_tagged_entry_editable_init))
+
+static void
+demo_tagged_entry_init (DemoTaggedEntry *entry)
+{
+  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
+
+  gtk_widget_set_has_surface (GTK_WIDGET (entry), FALSE);
+
+  priv->box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+  gtk_widget_set_parent (priv->box, GTK_WIDGET (entry));
+
+  priv->entry = gtk_text_new ();
+  gtk_widget_set_hexpand (priv->entry, TRUE);
+  gtk_widget_set_vexpand (priv->entry, TRUE);
+  gtk_widget_set_hexpand (priv->box, FALSE);
+  gtk_widget_set_vexpand (priv->box, FALSE);
+  gtk_container_add (GTK_CONTAINER (priv->box), priv->entry);
+  gtk_editable_init_delegate (GTK_EDITABLE (entry));
+}
+
+static void
+demo_tagged_entry_dispose (GObject *object)
+{
+  DemoTaggedEntry *entry = DEMO_TAGGED_ENTRY (object);
+  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
+
+  if (priv->entry)
+    gtk_editable_finish_delegate (GTK_EDITABLE (entry));
+
+  g_clear_pointer (&priv->entry, gtk_widget_unparent);
+  g_clear_pointer (&priv->box, gtk_widget_unparent);
+
+  G_OBJECT_CLASS (demo_tagged_entry_parent_class)->dispose (object);
+}
+
+static void
+demo_tagged_entry_finalize (GObject *object)
+{
+  G_OBJECT_CLASS (demo_tagged_entry_parent_class)->finalize (object);
+}
+
+static void
+demo_tagged_entry_set_property (GObject      *object,
+                                guint         prop_id,
+                                const GValue *value,
+                                GParamSpec   *pspec)
+{
+  if (gtk_editable_delegate_set_property (object, prop_id, value, pspec))
+    return;
+
+  G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+}
+
+static void
+demo_tagged_entry_get_property (GObject    *object,
+                                guint       prop_id,
+                                GValue     *value,
+                                GParamSpec *pspec)
+{
+  if (gtk_editable_delegate_get_property (object, prop_id, value, pspec))
+    return;
+
+  G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+}
+
+static void
+demo_tagged_entry_measure (GtkWidget      *widget,
+                           GtkOrientation  orientation,
+                           int             for_size,
+                           int            *minimum,
+                           int            *natural,
+                           int            *minimum_baseline,
+                           int            *natural_baseline)
+{
+  DemoTaggedEntry *entry = DEMO_TAGGED_ENTRY (widget);
+  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
+
+  gtk_widget_measure (priv->box, orientation, for_size,
+                      minimum, natural,
+                      minimum_baseline, natural_baseline);
+}
+
+static void
+demo_tagged_entry_size_allocate (GtkWidget *widget,
+                                 int        width,
+                                 int        height,
+                                 int        baseline)
+{
+  DemoTaggedEntry *entry = DEMO_TAGGED_ENTRY (widget);
+  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
+
+  gtk_widget_size_allocate (priv->box,
+                            &(GtkAllocation) { 0, 0, width, height },
+                            baseline);
+}
+
+static void
+demo_tagged_entry_grab_focus (GtkWidget *widget)
+{
+  DemoTaggedEntry *entry = DEMO_TAGGED_ENTRY (widget);
+  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
+
+  gtk_widget_grab_focus (priv->entry);
+}
+
+static void
+demo_tagged_entry_class_init (DemoTaggedEntryClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+  object_class->dispose = demo_tagged_entry_dispose;
+  object_class->finalize = demo_tagged_entry_finalize;
+  object_class->get_property = demo_tagged_entry_get_property;
+  object_class->set_property = demo_tagged_entry_set_property;
+
+  widget_class->measure = demo_tagged_entry_measure;
+  widget_class->size_allocate = demo_tagged_entry_size_allocate;
+  widget_class->grab_focus = demo_tagged_entry_grab_focus;
+ 
+  gtk_editable_install_properties (object_class, 1);
+
+  gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_ENTRY_ACCESSIBLE);
+  gtk_widget_class_set_css_name (widget_class, "entry");
+}
+
+static GtkEditable *
+demo_tagged_entry_get_delegate (GtkEditable *editable)
+{
+  DemoTaggedEntry *entry = DEMO_TAGGED_ENTRY (editable);
+  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
+
+  return GTK_EDITABLE (priv->entry);
+}
+
+static void
+demo_tagged_entry_editable_init (GtkEditableInterface *iface)
+{
+  iface->get_delegate = demo_tagged_entry_get_delegate;
+}
+
+GtkWidget *
+demo_tagged_entry_new (void)
+{
+  return GTK_WIDGET (g_object_new (DEMO_TYPE_TAGGED_ENTRY, NULL));
+}
+
+void
+demo_tagged_entry_add_tag (DemoTaggedEntry *entry,
+                           GtkWidget       *tag)
+{
+  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
+
+  g_return_if_fail (DEMO_IS_TAGGED_ENTRY (entry));
+
+  gtk_container_add (GTK_CONTAINER (priv->box), tag);
+}
+
+void
+demo_tagged_entry_insert_tag_after (DemoTaggedEntry *entry,
+                                    GtkWidget       *tag,
+                                    GtkWidget       *sibling)
+{
+  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
+
+  g_return_if_fail (DEMO_IS_TAGGED_ENTRY (entry));
+
+  if (sibling == NULL)
+    gtk_container_add (GTK_CONTAINER (priv->box), tag);
+  else
+    gtk_box_insert_child_after (GTK_BOX (priv->box), tag, sibling); 
+}
+
+void
+demo_tagged_entry_remove_tag (DemoTaggedEntry *entry,
+                              GtkWidget       *tag)
+{
+  DemoTaggedEntryPrivate *priv = demo_tagged_entry_get_instance_private (entry);
+
+  g_return_if_fail (DEMO_IS_TAGGED_ENTRY (entry));
+
+  gtk_container_remove (GTK_CONTAINER (priv->box), tag);
+}
+
+struct _DemoTaggedEntryTag
+{
+  GtkWidget parent;
+  GtkWidget *box;
+  GtkWidget *label;
+  GtkWidget *button;
+
+  gboolean has_close_button;
+  char *style;
+};
+
+struct _DemoTaggedEntryTagClass
+{
+  GtkWidgetClass parent_class;
+};
+
+enum {
+  PROP_0,
+  PROP_LABEL,
+  PROP_HAS_CLOSE_BUTTON,
+};
+
+enum {
+  SIGNAL_CLICKED,
+  SIGNAL_BUTTON_CLICKED,
+  LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0, };
+
+G_DEFINE_TYPE (DemoTaggedEntryTag, demo_tagged_entry_tag, GTK_TYPE_WIDGET)
+
+static void
+on_released (GtkGestureMultiPress *gesture,
+             int                   n_press,
+             double                x,
+             double                y,
+             DemoTaggedEntryTag          *tag)
+{
+  g_signal_emit (tag, signals[SIGNAL_CLICKED], 0);
+}
+
+static void
+demo_tagged_entry_tag_init (DemoTaggedEntryTag *tag)
+{
+  GtkGesture *gesture;
+  GtkCssProvider *provider;
+
+  gtk_widget_set_has_surface (GTK_WIDGET (tag), FALSE);
+
+  tag->box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+  gtk_widget_set_parent (tag->box, GTK_WIDGET (tag));
+  tag->label = gtk_label_new ("");
+  gtk_container_add (GTK_CONTAINER (tag->box), tag->label);
+
+  gesture = gtk_gesture_multi_press_new ();
+  g_signal_connect (gesture, "released", G_CALLBACK (on_released), tag);
+  gtk_widget_add_controller (GTK_WIDGET (tag), GTK_EVENT_CONTROLLER (gesture));
+
+  provider = gtk_css_provider_new ();
+  gtk_css_provider_load_from_resource (provider, "/tagged_entry/tagstyle.css");
+  gtk_style_context_add_provider_for_display (gdk_display_get_default (),
+                                              GTK_STYLE_PROVIDER (provider),
+                                              800);
+  g_object_unref (provider);
+}
+
+static void
+demo_tagged_entry_tag_dispose (GObject *object)
+{
+  DemoTaggedEntryTag *tag = DEMO_TAGGED_ENTRY_TAG (object);
+
+  g_clear_pointer (&tag->box, gtk_widget_unparent);
+
+  G_OBJECT_CLASS (demo_tagged_entry_tag_parent_class)->dispose (object);
+}
+
+static void
+demo_tagged_entry_tag_finalize (GObject *object)
+{
+  DemoTaggedEntryTag *tag = DEMO_TAGGED_ENTRY_TAG (object);
+
+  g_clear_pointer (&tag->box, gtk_widget_unparent);
+  g_clear_pointer (&tag->style, g_free);
+
+  G_OBJECT_CLASS (demo_tagged_entry_tag_parent_class)->finalize (object);
+}
+
+static void
+demo_tagged_entry_tag_set_property (GObject      *object,
+                                    guint         prop_id,
+                                    const GValue *value,
+                                    GParamSpec   *pspec)
+{
+  DemoTaggedEntryTag *tag = DEMO_TAGGED_ENTRY_TAG (object);
+
+  switch (prop_id)
+    {
+    case PROP_LABEL:
+      demo_tagged_entry_tag_set_label (tag, g_value_get_string (value));
+      break;
+
+    case PROP_HAS_CLOSE_BUTTON:
+      demo_tagged_entry_tag_set_has_close_button (tag, g_value_get_boolean (value));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+demo_tagged_entry_tag_get_property (GObject    *object,
+                                    guint       prop_id,
+                                    GValue     *value,
+                                    GParamSpec *pspec)
+{
+  DemoTaggedEntryTag *tag = DEMO_TAGGED_ENTRY_TAG (object);
+
+  switch (prop_id)
+    {
+    case PROP_LABEL:
+      g_value_set_string (value, demo_tagged_entry_tag_get_label (tag));
+      break;
+
+    case PROP_HAS_CLOSE_BUTTON:
+      g_value_set_boolean (value, demo_tagged_entry_tag_get_has_close_button (tag));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+demo_tagged_entry_tag_measure (GtkWidget      *widget,
+                               GtkOrientation  orientation,
+                               int             for_size,
+                               int            *minimum,
+                               int            *natural,
+                               int            *minimum_baseline,
+                               int            *natural_baseline)
+{
+  DemoTaggedEntryTag *tag = DEMO_TAGGED_ENTRY_TAG (widget);
+
+  gtk_widget_measure (tag->box, orientation, for_size,
+                      minimum, natural,
+                      minimum_baseline, natural_baseline);
+}
+
+static void
+demo_tagged_entry_tag_size_allocate (GtkWidget *widget,
+                                     int        width,
+                                     int        height,
+                                     int        baseline)
+{
+  DemoTaggedEntryTag *tag = DEMO_TAGGED_ENTRY_TAG (widget);
+
+  gtk_widget_size_allocate (tag->box,
+                            &(GtkAllocation) { 0, 0, width, height },
+                            baseline);
+}
+
+static void
+demo_tagged_entry_tag_class_init (DemoTaggedEntryTagClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
+
+  object_class->dispose = demo_tagged_entry_tag_dispose;
+  object_class->finalize = demo_tagged_entry_tag_finalize;
+  object_class->set_property = demo_tagged_entry_tag_set_property;
+  object_class->get_property = demo_tagged_entry_tag_get_property;
+
+  widget_class->measure = demo_tagged_entry_tag_measure;
+  widget_class->size_allocate = demo_tagged_entry_tag_size_allocate;
+
+  signals[SIGNAL_CLICKED] =
+      g_signal_new ("clicked",
+                    DEMO_TYPE_TAGGED_ENTRY_TAG,
+                    G_SIGNAL_RUN_FIRST,
+                    0, NULL, NULL, NULL,
+                    G_TYPE_NONE, 0);
+  signals[SIGNAL_BUTTON_CLICKED] =
+      g_signal_new ("button-clicked",
+                    DEMO_TYPE_TAGGED_ENTRY_TAG,
+                    G_SIGNAL_RUN_FIRST,
+                    0, NULL, NULL, NULL,
+                    G_TYPE_NONE, 0);
+
+  g_object_class_install_property (object_class, PROP_LABEL,
+      g_param_spec_string ("label", "Label", "Label",
+                           NULL, G_PARAM_READWRITE));
+  g_object_class_install_property (object_class, PROP_HAS_CLOSE_BUTTON,
+      g_param_spec_boolean ("has-close-button", "Has close button", "Whether this tag has a close button",
+                            FALSE, G_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
+
+  gtk_widget_class_set_css_name (widget_class, "tag");
+}
+
+DemoTaggedEntryTag *
+demo_tagged_entry_tag_new (const char *label)
+{
+  return DEMO_TAGGED_ENTRY_TAG (g_object_new (DEMO_TYPE_TAGGED_ENTRY_TAG,
+                                              "label", label,
+                                              NULL));
+}
+
+const char *
+demo_tagged_entry_tag_get_label (DemoTaggedEntryTag *tag)
+{
+  g_return_val_if_fail (DEMO_IS_TAGGED_ENTRY_TAG (tag), NULL);
+
+  return gtk_label_get_label (GTK_LABEL (tag->label));
+}
+
+void
+demo_tagged_entry_tag_set_label (DemoTaggedEntryTag *tag,
+                                 const char         *label)
+{
+  g_return_if_fail (DEMO_IS_TAGGED_ENTRY_TAG (tag));
+
+  gtk_label_set_label (GTK_LABEL (tag->label), label);
+}
+
+static void
+on_button_clicked (GtkButton          *button,
+                   DemoTaggedEntryTag *tag)
+{
+  g_signal_emit (tag, signals[SIGNAL_BUTTON_CLICKED], 0);
+}
+
+void
+demo_tagged_entry_tag_set_has_close_button (DemoTaggedEntryTag *tag,
+                                            gboolean            has_close_button)
+{
+  g_return_if_fail (DEMO_IS_TAGGED_ENTRY_TAG (tag));
+
+  if ((tag->button != NULL) == has_close_button)
+    return;
+
+  if (!has_close_button && tag->button)
+    {
+      gtk_container_remove (GTK_CONTAINER (tag->box), tag->button);
+      tag->button = NULL;
+    }
+  else if (has_close_button && tag->button == NULL)
+    {
+      GtkWidget *image;
+
+      image = gtk_image_new_from_icon_name ("window-close-symbolic");
+      tag->button = gtk_button_new ();
+      gtk_container_add (GTK_CONTAINER (tag->button), image);
+      gtk_widget_set_halign (tag->button, GTK_ALIGN_CENTER);
+      gtk_widget_set_valign (tag->button, GTK_ALIGN_CENTER);
+      gtk_button_set_relief (GTK_BUTTON (tag->button), GTK_RELIEF_NONE);
+      gtk_container_add (GTK_CONTAINER (tag->box), tag->button);
+      g_signal_connect (tag->button, "clicked", G_CALLBACK (on_button_clicked), tag);
+    }
+
+  g_object_notify (G_OBJECT (tag), "has-close-button");
+}
+
+gboolean
+demo_tagged_entry_tag_get_has_close_button (DemoTaggedEntryTag *tag)
+{
+  g_return_val_if_fail (DEMO_IS_TAGGED_ENTRY_TAG (tag), FALSE);
+
+  return tag->button != NULL;
+}

demos/gtk-demo/demotaggedentry.h

@@ -0,0 +1,89 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 2019 Red Hat, Inc.
+ *
+ * Authors:
+ * - Matthias Clasen <mclasen@redhat.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __DEMO_TAGGED_ENTRY_H__
+#define __DEMO_TAGGED_ENTRY_H__
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define DEMO_TYPE_TAGGED_ENTRY                 (demo_tagged_entry_get_type ())
+#define DEMO_TAGGED_ENTRY(obj)                 (G_TYPE_CHECK_INSTANCE_CAST ((obj), DEMO_TYPE_TAGGED_ENTRY, DemoTaggedEntry))
+#define DEMO_TAGGED_ENTRY_CLASS(klass)         (G_TYPE_CHECK_CLASS_CAST ((klass), DEMO_TYPE_TAGGED_ENTRY, DemoTaggedEntryClass))
+#define DEMO_IS_TAGGED_ENTRY(obj)              (G_TYPE_CHECK_INSTANCE_TYPE ((obj), DEMO_TYPE_TAGGED_ENTRY))
+#define DEMO_IS_TAGGED_ENTRY_CLASS(klass)      (G_TYPE_CHECK_CLASS_TYPE ((klass), DEMO_TYPE_TAGGED_ENTRY))
+#define DEMO_TAGGED_ENTRY_GET_CLASS(obj)       (G_TYPE_INSTANCE_GET_CLASS ((obj), DEMO_TYPE_TAGGED_ENTRY, DemoTaggedEntryClass))
+
+typedef struct _DemoTaggedEntry       DemoTaggedEntry;
+typedef struct _DemoTaggedEntryClass  DemoTaggedEntryClass;
+
+struct _DemoTaggedEntry
+{
+  GtkWidget parent;
+};
+
+struct _DemoTaggedEntryClass
+{
+  GtkWidgetClass parent_class;
+};
+
+#define DEMO_TYPE_TAGGED_ENTRY_TAG                (demo_tagged_entry_tag_get_type ())
+#define DEMO_TAGGED_ENTRY_TAG(obj)                (G_TYPE_CHECK_INSTANCE_CAST ((obj), DEMO_TYPE_TAGGED_ENTRY_TAG, DemoTaggedEntryTag))
+#define DEMO_TAGGED_ENTRY_TAG_CLASS(klass)        (G_TYPE_CHECK_CLASS_CAST ((klass), DEMO_TYPE_TAGGED_ENTRY_TAG, DemoTaggedEntryTag))
+#define DEMO_IS_TAGGED_ENTRY_TAG(obj)             (G_TYPE_CHECK_INSTANCE_TYPE ((obj), DEMO_TYPE_TAGGED_ENTRY_TAG))
+#define DEMO_IS_TAGGED_ENTRY_TAG_CLASS(klass)     (G_TYPE_CHECK_CLASS_TYPE ((klass), DEMO_TYPE_TAGGED_ENTRY_TAG))
+#define DEMO_TAGGED_ENTRY_TAG_GET_CLASS(obj)      (G_TYPE_INSTANCE_GET_CLASS ((obj), DEMO_TYPE_TAGGED_ENTRY_TAG, DemoTaggedEntryTagClass))
+
+typedef struct _DemoTaggedEntryTag       DemoTaggedEntryTag;
+typedef struct _DemoTaggedEntryTagClass  DemoTaggedEntryTagClass;
+
+
+GType           demo_tagged_entry_get_type (void) G_GNUC_CONST;
+GType           demo_tagged_entry_tag_get_type (void) G_GNUC_CONST;
+
+GtkWidget *     demo_tagged_entry_new     (void);
+
+void            demo_tagged_entry_add_tag (DemoTaggedEntry *entry,
+                                           GtkWidget       *tag);
+
+void            demo_tagged_entry_insert_tag_after (DemoTaggedEntry *entry,
+                                                    GtkWidget       *tag,
+                                                    GtkWidget       *sibling);
+
+void            demo_tagged_entry_remove_tag (DemoTaggedEntry *entry,
+                                              GtkWidget       *tag);
+
+DemoTaggedEntryTag *
+                demo_tagged_entry_tag_new (const char *label);
+
+const char *    demo_tagged_entry_tag_get_label (DemoTaggedEntryTag *tag);
+
+void            demo_tagged_entry_tag_set_label (DemoTaggedEntryTag *tag,
+                                                 const char         *label);
+
+gboolean        demo_tagged_entry_tag_get_has_close_button (DemoTaggedEntryTag *tag);
+
+void            demo_tagged_entry_tag_set_has_close_button (DemoTaggedEntryTag *tag,
+                                                            gboolean            has_close_button);
+
+G_END_DECLS
+
+#endif /* __DEMO_TAGGED_ENTRY_H__ */

demos/gtk-demo/dialog.c

@@ -56,20 +56,20 @@ interactive_dialog_clicked (GtkButton *button,
   content_area = gtk_dialog_get_content_area (GTK_DIALOG (dialog));
 
   hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 8);
-  gtk_box_pack_start (GTK_BOX (content_area), hbox);
+  gtk_container_add (GTK_CONTAINER (content_area), hbox);
 
   image = gtk_image_new_from_icon_name ("dialog-question");
   gtk_image_set_icon_size (GTK_IMAGE (image), GTK_ICON_SIZE_LARGE);
-  gtk_box_pack_start (GTK_BOX (hbox), image);
+  gtk_container_add (GTK_CONTAINER (hbox), image);
 
   table = gtk_grid_new ();
   gtk_grid_set_row_spacing (GTK_GRID (table), 4);
   gtk_grid_set_column_spacing (GTK_GRID (table), 4);
-  gtk_box_pack_start (GTK_BOX (hbox), table);
+  gtk_container_add (GTK_CONTAINER (hbox), table);
   label = gtk_label_new_with_mnemonic ("_Entry 1");
   gtk_grid_attach (GTK_GRID (table), label, 0, 0, 1, 1);
   local_entry1 = gtk_entry_new ();
-  gtk_entry_set_text (GTK_ENTRY (local_entry1), gtk_entry_get_text (GTK_ENTRY (entry1)));
+  gtk_editable_set_text (GTK_EDITABLE (local_entry1), gtk_editable_get_text (GTK_EDITABLE (entry1)));
   gtk_grid_attach (GTK_GRID (table), local_entry1, 1, 0, 1, 1);
   gtk_label_set_mnemonic_widget (GTK_LABEL (label), local_entry1);
 
@@ -77,7 +77,7 @@ interactive_dialog_clicked (GtkButton *button,
   gtk_grid_attach (GTK_GRID (table), label, 0, 1, 1, 1);
 
   local_entry2 = gtk_entry_new ();
-  gtk_entry_set_text (GTK_ENTRY (local_entry2), gtk_entry_get_text (GTK_ENTRY (entry2)));
+  gtk_editable_set_text (GTK_EDITABLE (local_entry2), gtk_editable_get_text (GTK_EDITABLE (entry2)));
   gtk_grid_attach (GTK_GRID (table), local_entry2, 1, 1, 1, 1);
   gtk_label_set_mnemonic_widget (GTK_LABEL (label), local_entry2);
 
@@ -85,8 +85,8 @@ interactive_dialog_clicked (GtkButton *button,
 
   if (response == GTK_RESPONSE_OK)
     {
-      gtk_entry_set_text (GTK_ENTRY (entry1), gtk_entry_get_text (GTK_ENTRY (local_entry1)));
-      gtk_entry_set_text (GTK_ENTRY (entry2), gtk_entry_get_text (GTK_ENTRY (local_entry2)));
+      gtk_editable_set_text (GTK_EDITABLE (entry1), gtk_editable_get_text (GTK_EDITABLE (local_entry1)));
+      gtk_editable_set_text (GTK_EDITABLE (entry2), gtk_editable_get_text (GTK_EDITABLE (local_entry2)));
     }
 
   gtk_widget_destroy (dialog);
@@ -123,29 +123,29 @@ do_dialog (GtkWidget *do_widget)
 
       /* Standard message dialog */
       hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 8);
-      gtk_box_pack_start (GTK_BOX (vbox), hbox);
+      gtk_container_add (GTK_CONTAINER (vbox), hbox);
       button = gtk_button_new_with_mnemonic ("_Message Dialog");
       g_signal_connect (button, "clicked",
                         G_CALLBACK (message_dialog_clicked), NULL);
-      gtk_box_pack_start (GTK_BOX (hbox), button);
+      gtk_container_add (GTK_CONTAINER (hbox), button);
 
-      gtk_box_pack_start (GTK_BOX (vbox), gtk_separator_new (GTK_ORIENTATION_HORIZONTAL));
+      gtk_container_add (GTK_CONTAINER (vbox), gtk_separator_new (GTK_ORIENTATION_HORIZONTAL));
 
       /* Interactive dialog*/
       hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 8);
-      gtk_box_pack_start (GTK_BOX (vbox), hbox);
+      gtk_container_add (GTK_CONTAINER (vbox), hbox);
       vbox2 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
 
       button = gtk_button_new_with_mnemonic ("_Interactive Dialog");
       g_signal_connect (button, "clicked",
                         G_CALLBACK (interactive_dialog_clicked), NULL);
-      gtk_box_pack_start (GTK_BOX (hbox), vbox2);
-      gtk_box_pack_start (GTK_BOX (vbox2), button);
+      gtk_container_add (GTK_CONTAINER (hbox), vbox2);
+      gtk_container_add (GTK_CONTAINER (vbox2), button);
 
       table = gtk_grid_new ();
       gtk_grid_set_row_spacing (GTK_GRID (table), 4);
       gtk_grid_set_column_spacing (GTK_GRID (table), 4);
-      gtk_box_pack_start (GTK_BOX (hbox), table);
+      gtk_container_add (GTK_CONTAINER (hbox), table);
 
       label = gtk_label_new_with_mnemonic ("_Entry 1");
       gtk_grid_attach (GTK_GRID (table), label, 0, 0, 1, 1);

demos/gtk-demo/dnd.c

@@ -199,7 +199,7 @@ edit_label_done (GtkWidget *entry, gpointer data)
   gtk_container_child_get (GTK_CONTAINER (fixed), entry, "x", &x, "y", &y, NULL);
 
   label = GTK_WIDGET (g_object_get_data (G_OBJECT (entry), "label"));
-  gtk_label_set_text (GTK_LABEL (label), gtk_entry_get_text (GTK_ENTRY (entry)));
+  gtk_label_set_text (GTK_LABEL (label), gtk_editable_get_text (GTK_EDITABLE (entry)));
 
   gtk_widget_destroy (entry);
 }
@@ -218,7 +218,7 @@ edit_cb (GtkWidget *child)
 
       g_object_set_data (G_OBJECT (entry), "label", child);
 
-      gtk_entry_set_text (GTK_ENTRY (entry), gtk_label_get_text (GTK_LABEL (child)));
+      gtk_editable_set_text (GTK_EDITABLE (entry), gtk_label_get_text (GTK_LABEL (child)));
       g_signal_connect (entry, "activate", G_CALLBACK (edit_label_done), NULL);
       gtk_fixed_put (GTK_FIXED (fixed), entry, x, y);
       gtk_widget_grab_focus (entry);
@@ -352,14 +352,15 @@ do_dnd (GtkWidget *do_widget)
       gtk_container_add (GTK_CONTAINER (window), vbox);
 
       fixed = gtk_fixed_new ();
-      gtk_box_pack_start (GTK_BOX (vbox), fixed);
+      gtk_container_add (GTK_CONTAINER (vbox), fixed);
       gtk_widget_set_hexpand (fixed, TRUE);
       gtk_widget_set_vexpand (fixed, TRUE);
 
-      multipress = gtk_gesture_multi_press_new (fixed);
+      multipress = gtk_gesture_multi_press_new ();
       gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (multipress), 0);
       g_signal_connect (multipress, "pressed", G_CALLBACK (pressed_cb), NULL);
       g_signal_connect (multipress, "released", G_CALLBACK (released_cb), NULL);
+      gtk_widget_add_controller (fixed, GTK_EVENT_CONTROLLER (multipress));
 
       provider = gtk_css_provider_new ();
       gtk_css_provider_load_from_resource (provider, "/dnd/dnd.css");

demos/gtk-demo/drawingarea.c

@@ -86,7 +86,7 @@ draw_brush (GtkWidget *widget,
 
   cairo_destroy (cr);
 
-  gtk_widget_queue_draw_area (widget, update_rect.x, update_rect.y, update_rect.width, update_rect.height);
+  gtk_widget_queue_draw (widget);
 }
 
 static double start_x;
@@ -208,12 +208,12 @@ do_drawingarea (GtkWidget *do_widget)
       label = gtk_label_new (NULL);
       gtk_label_set_markup (GTK_LABEL (label),
                             "<u>Checkerboard pattern</u>");
-      gtk_box_pack_start (GTK_BOX (vbox), label);
+      gtk_container_add (GTK_CONTAINER (vbox), label);
 
       frame = gtk_frame_new (NULL);
       gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
       gtk_widget_set_vexpand (frame, TRUE);
-      gtk_box_pack_start (GTK_BOX (vbox), frame);
+      gtk_container_add (GTK_CONTAINER (vbox), frame);
 
       da = gtk_drawing_area_new ();
       gtk_drawing_area_set_content_width (GTK_DRAWING_AREA (da), 100);
@@ -228,12 +228,12 @@ do_drawingarea (GtkWidget *do_widget)
       label = gtk_label_new (NULL);
       gtk_label_set_markup (GTK_LABEL (label),
                             "<u>Scribble area</u>");
-      gtk_box_pack_start (GTK_BOX (vbox), label);
+      gtk_container_add (GTK_CONTAINER (vbox), label);
 
       frame = gtk_frame_new (NULL);
       gtk_widget_set_vexpand (frame, TRUE);
       gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
-      gtk_box_pack_start (GTK_BOX (vbox), frame);
+      gtk_container_add (GTK_CONTAINER (vbox), frame);
 
       da = gtk_drawing_area_new ();
       gtk_drawing_area_set_content_width (GTK_DRAWING_AREA (da), 100);
@@ -244,13 +244,14 @@ do_drawingarea (GtkWidget *do_widget)
       g_signal_connect (da, "size-allocate",
                         G_CALLBACK (scribble_size_allocate), NULL);
 
-      drag = gtk_gesture_drag_new (da);
+      drag = gtk_gesture_drag_new ();
       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);
+      gtk_widget_add_controller (da, GTK_EVENT_CONTROLLER (drag));
 
       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/editable_cells.c

@@ -356,7 +356,7 @@ do_editable_cells (GtkWidget *do_widget)
       g_object_set (vbox, "margin", 5, NULL);
       gtk_container_add (GTK_CONTAINER (window), vbox);
 
-      gtk_box_pack_start (GTK_BOX (vbox),
+      gtk_container_add (GTK_CONTAINER (vbox),
                           gtk_label_new ("Shopping list (you can edit the cells!)"));
 
       sw = gtk_scrolled_window_new (NULL, NULL);
@@ -365,7 +365,7 @@ do_editable_cells (GtkWidget *do_widget)
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                       GTK_POLICY_AUTOMATIC,
                                       GTK_POLICY_AUTOMATIC);
-      gtk_box_pack_start (GTK_BOX (vbox), sw);
+      gtk_container_add (GTK_CONTAINER (vbox), sw);
 
       /* create models */
       items_model = create_items_model ();
@@ -387,17 +387,17 @@ do_editable_cells (GtkWidget *do_widget)
       /* some buttons */
       hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
       gtk_box_set_homogeneous (GTK_BOX (hbox), TRUE);
-      gtk_box_pack_start (GTK_BOX (vbox), hbox);
+      gtk_container_add (GTK_CONTAINER (vbox), hbox);
 
       button = gtk_button_new_with_label ("Add item");
       g_signal_connect (button, "clicked",
                         G_CALLBACK (add_item), treeview);
-      gtk_box_pack_start (GTK_BOX (hbox), button);
+      gtk_container_add (GTK_CONTAINER (hbox), button);
 
       button = gtk_button_new_with_label ("Remove item");
       g_signal_connect (button, "clicked",
                         G_CALLBACK (remove_item), treeview);
-      gtk_box_pack_start (GTK_BOX (hbox), button);
+      gtk_container_add (GTK_CONTAINER (hbox), button);
 
       gtk_window_set_default_size (GTK_WINDOW (window), 320, 200);
     }

demos/gtk-demo/entry_buffer.c

@@ -34,19 +34,19 @@ do_entry_buffer (GtkWidget *do_widget)
       label = gtk_label_new (NULL);
       gtk_label_set_markup (GTK_LABEL (label),
                             "Entries share a buffer. Typing in one is reflected in the other.");
-      gtk_box_pack_start (GTK_BOX (vbox), label);
+      gtk_container_add (GTK_CONTAINER (vbox), label);
 
       /* Create a buffer */
       buffer = gtk_entry_buffer_new (NULL, 0);
 
       /* Create our first entry */
       entry = gtk_entry_new_with_buffer (buffer);
-      gtk_box_pack_start (GTK_BOX (vbox), entry);
+      gtk_container_add (GTK_CONTAINER (vbox), entry);
 
       /* Create the second entry */
       entry = gtk_entry_new_with_buffer (buffer);
       gtk_entry_set_visibility (GTK_ENTRY (entry), FALSE);
-      gtk_box_pack_start (GTK_BOX (vbox), entry);
+      gtk_container_add (GTK_CONTAINER (vbox), entry);
 
       g_object_unref (buffer);
     }

demos/gtk-demo/entry_completion.c

@@ -60,11 +60,11 @@ do_entry_completion (GtkWidget *do_widget)
 
       label = gtk_label_new (NULL);
       gtk_label_set_markup (GTK_LABEL (label), "Completion demo, try writing <b>total</b> or <b>gnome</b> for example.");
-      gtk_box_pack_start (GTK_BOX (vbox), label);
+      gtk_container_add (GTK_CONTAINER (vbox), label);
 
       /* Create our entry */
       entry = gtk_entry_new ();
-      gtk_box_pack_start (GTK_BOX (vbox), entry);
+      gtk_container_add (GTK_CONTAINER (vbox), entry);
 
       /* Create the completion object */
       completion = gtk_entry_completion_new ();

demos/gtk-demo/event_axes.c

@@ -1,668 +0,0 @@
-/* Touch and Drawing Tablets
- *
- * Demonstrates advanced handling of event information from exotic
- * input devices.
- *
- * On one hand, this snippet demonstrates management of drawing tablets,
- * those contain additional information for the pointer other than
- * X/Y coordinates. Tablet pads events are mapped to actions, which
- * are both defined and interpreted by the application.
- *
- * Input axes are dependent on hardware devices, on linux/unix you
- * can see the device axes through xinput list <device>. Each time
- * a different hardware device is used to move the pointer, the
- * master device will be updated to match the axes it provides,
- * these changes can be tracked through GdkDevice::changed, or
- * checking gdk_event_get_source_device().
- *
- * On the other hand, this demo handles basic multitouch events,
- * each event coming from an specific touchpoint will contain a
- * GdkEventSequence that's unique for its lifetime, so multiple
- * touchpoints can be tracked.
- */
-
-#include <glib/gi18n.h>
-#include <gtk/gtk.h>
-
-typedef struct {
-  GdkDevice *last_source;
-  GdkDeviceTool *last_tool;
-  gdouble *axes;
-  GdkRGBA color;
-  gdouble x;
-  gdouble y;
-} AxesInfo;
-
-typedef struct {
-  GHashTable *pointer_info; /* GdkDevice -> AxesInfo */
-  GHashTable *touch_info; /* GdkEventSequence -> AxesInfo */
-} EventData;
-
-const gchar *colors[] = {
-  "black",
-  "orchid",
-  "fuchsia",
-  "indigo",
-  "thistle",
-  "sienna",
-  "azure",
-  "plum",
-  "lime",
-  "navy",
-  "maroon",
-  "burlywood"
-};
-
-static GtkPadActionEntry pad_actions[] = {
-  { GTK_PAD_ACTION_BUTTON, 1, -1, N_("Nuclear strike"), "pad.nuke" },
-  { GTK_PAD_ACTION_BUTTON, 2, -1, N_("Release siberian methane reserves"), "pad.heat" },
-  { GTK_PAD_ACTION_BUTTON, 3, -1, N_("Release solar flare"), "pad.fry" },
-  { GTK_PAD_ACTION_BUTTON, 4, -1, N_("De-stabilize Oort cloud"), "pad.fall" },
-  { GTK_PAD_ACTION_BUTTON, 5, -1, N_("Ignite WR-104"), "pad.burst" },
-  { GTK_PAD_ACTION_BUTTON, 6, -1, N_("Lart whoever asks about this button"), "pad.lart" },
-  { GTK_PAD_ACTION_RING, -1, -1, N_("Earth axial tilt"), "pad.tilt" },
-  { GTK_PAD_ACTION_STRIP, -1, -1, N_("Extent of weak nuclear force"), "pad.dissolve" },
-};
-
-static const gchar *pad_action_results[] = {
-  "☢",
-  "♨",
-  "☼",
-  "☄",
-  "⚡",
-  "💫",
-  "◑",
-  "⚛"
-};
-
-static guint cur_color = 0;
-static guint pad_action_timeout_id = 0;
-
-static AxesInfo *
-axes_info_new (void)
-{
-  AxesInfo *info;
-
-  info = g_new0 (AxesInfo, 1);
-  gdk_rgba_parse (&info->color, colors[cur_color]);
-
-  cur_color = (cur_color + 1) % G_N_ELEMENTS (colors);
-
-  return info;
-}
-
-static EventData *
-event_data_new (void)
-{
-  EventData *data;
-
-  data = g_new0 (EventData, 1);
-  data->pointer_info = g_hash_table_new_full (NULL, NULL, NULL,
-                                              (GDestroyNotify) g_free);
-  data->touch_info = g_hash_table_new_full (NULL, NULL, NULL,
-                                            (GDestroyNotify) g_free);
-
-  return data;
-}
-
-static void
-event_data_free (EventData *data)
-{
-  g_hash_table_destroy (data->pointer_info);
-  g_hash_table_destroy (data->touch_info);
-  g_free (data);
-}
-
-static void
-update_axes_from_event (GdkEvent  *event,
-                        EventData *data)
-{
-  GdkDevice *device, *source_device;
-  GdkEventSequence *sequence;
-  GdkDeviceTool *tool;
-  GdkEventType type;
-  gdouble x, y;
-  AxesInfo *info;
-
-  device = gdk_event_get_device (event);
-  source_device = gdk_event_get_source_device (event);
-  sequence = gdk_event_get_event_sequence (event);
-  tool = gdk_event_get_device_tool (event);
-  type = gdk_event_get_event_type (event);
-
-  if (type == GDK_TOUCH_END ||
-      type == GDK_TOUCH_CANCEL)
-    {
-      g_hash_table_remove (data->touch_info, sequence);
-      return;
-    }
-  else if (type == GDK_LEAVE_NOTIFY)
-    {
-      g_hash_table_remove (data->pointer_info, device);
-      return;
-    }
-
-  if (!source_device)
-    return;
-
-  if (!sequence)
-    {
-      info = g_hash_table_lookup (data->pointer_info, device);
-
-      if (!info)
-        {
-          info = axes_info_new ();
-          g_hash_table_insert (data->pointer_info, device, info);
-        }
-    }
-  else
-    {
-      info = g_hash_table_lookup (data->touch_info, sequence);
-
-      if (!info)
-        {
-          info = axes_info_new ();
-          g_hash_table_insert (data->touch_info, sequence, info);
-        }
-    }
-
-  if (info->last_source != source_device)
-    info->last_source = source_device;
-
-  if (info->last_tool != tool)
-    info->last_tool = tool;
-
-  g_clear_pointer (&info->axes, g_free);
-
-  if (type == GDK_TOUCH_BEGIN ||
-      type == GDK_TOUCH_UPDATE)
-    {
-      gboolean emulating_pointer;
-
-      gdk_event_get_touch_emulating_pointer (event, &emulating_pointer);
-      if (sequence && emulating_pointer)
-        g_hash_table_remove (data->pointer_info, device);
-    }
-  if (type == GDK_MOTION_NOTIFY ||
-      type == GDK_BUTTON_PRESS ||
-      type == GDK_BUTTON_RELEASE)
-    {
-      gdouble *axes;
-      guint n_axes;
-
-      gdk_event_get_axes (event, &axes, &n_axes);
-      info->axes = g_memdup (axes, sizeof (double) * n_axes);
-    }
-
-  if (gdk_event_get_coords (event, &x, &y))
-    {
-      info->x = x;
-      info->y = y;
-    }
-}
-
-static gboolean
-event_cb (GtkWidget *widget,
-          GdkEvent  *event,
-          gpointer   user_data)
-{
-  update_axes_from_event (event, user_data);
-  gtk_widget_queue_draw (widget);
-  return FALSE;
-}
-
-static void
-render_arrow (cairo_t     *cr,
-              gdouble      x_diff,
-              gdouble      y_diff,
-              const gchar *label)
-{
-  cairo_save (cr);
-
-  cairo_set_source_rgb (cr, 0, 0, 0);
-  cairo_new_path (cr);
-  cairo_move_to (cr, 0, 0);
-  cairo_line_to (cr, x_diff, y_diff);
-  cairo_stroke (cr);
-
-  cairo_move_to (cr, x_diff, y_diff);
-  cairo_show_text (cr, label);
-
-  cairo_restore (cr);
-}
-
-static void
-draw_axes_info (cairo_t       *cr,
-                AxesInfo      *info,
-                int            width,
-                int            height)
-{
-  gdouble pressure, tilt_x, tilt_y, distance, wheel, rotation, slider;
-  GdkAxisFlags axes = gdk_device_get_axes (info->last_source);
-
-  cairo_save (cr);
-
-  cairo_set_line_width (cr, 1);
-  gdk_cairo_set_source_rgba (cr, &info->color);
-
-  cairo_move_to (cr, 0, info->y);
-  cairo_line_to (cr, width, info->y);
-  cairo_move_to (cr, info->x, 0);
-  cairo_line_to (cr, info->x, height);
-  cairo_stroke (cr);
-
-  cairo_translate (cr, info->x, info->y);
-
-  if (!info->axes)
-    {
-      cairo_restore (cr);
-      return;
-    }
-
-  if (axes & GDK_AXIS_FLAG_PRESSURE)
-    {
-      cairo_pattern_t *pattern;
-
-      gdk_device_get_axis (info->last_source, info->axes, GDK_AXIS_PRESSURE,
-                           &pressure);
-
-      pattern = cairo_pattern_create_radial (0, 0, 0, 0, 0, 100);
-      cairo_pattern_add_color_stop_rgba (pattern, pressure, 1, 0, 0, pressure);
-      cairo_pattern_add_color_stop_rgba (pattern, 1, 0, 0, 1, 0);
-
-      cairo_set_source (cr, pattern);
-
-      cairo_arc (cr, 0, 0, 100, 0, 2 * G_PI);
-      cairo_fill (cr);
-
-      cairo_pattern_destroy (pattern);
-    }
-
-  if (axes & GDK_AXIS_FLAG_XTILT &&
-      axes & GDK_AXIS_FLAG_YTILT)
-    {
-      gdk_device_get_axis (info->last_source, info->axes, GDK_AXIS_XTILT,
-                           &tilt_x);
-      gdk_device_get_axis (info->last_source, info->axes, GDK_AXIS_YTILT,
-                           &tilt_y);
-
-      render_arrow (cr, tilt_x * 100, tilt_y * 100, "Tilt");
-    }
-
-  if (axes & GDK_AXIS_FLAG_DISTANCE)
-    {
-      double dashes[] = { 5.0, 5.0 };
-      cairo_text_extents_t extents;
-
-      gdk_device_get_axis (info->last_source, info->axes, GDK_AXIS_DISTANCE,
-                           &distance);
-
-      cairo_save (cr);
-
-      cairo_move_to (cr, distance * 100, 0);
-
-      cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
-      cairo_set_dash (cr, dashes, 2, 0.0);
-      cairo_arc (cr, 0, 0, distance * 100, 0, 2 * G_PI);
-      cairo_stroke (cr);
-
-      cairo_move_to (cr, 0, -distance * 100);
-      cairo_text_extents (cr, "Distance", &extents);
-      cairo_rel_move_to (cr, -extents.width / 2, 0);
-      cairo_show_text (cr, "Distance");
-
-      cairo_move_to (cr, 0, 0);
-
-      cairo_restore (cr);
-    }
-
-  if (axes & GDK_AXIS_FLAG_WHEEL)
-    {
-      gdk_device_get_axis (info->last_source, info->axes, GDK_AXIS_WHEEL,
-                           &wheel);
-
-      cairo_save (cr);
-      cairo_set_line_width (cr, 10);
-      cairo_set_source_rgba (cr, 0, 0, 0, 0.5);
-
-      cairo_new_sub_path (cr);
-      cairo_arc (cr, 0, 0, 100, 0, wheel * 2 * G_PI);
-      cairo_stroke (cr);
-      cairo_restore (cr);
-    }
-
-  if (axes & GDK_AXIS_FLAG_ROTATION)
-    {
-      gdk_device_get_axis (info->last_source, info->axes, GDK_AXIS_ROTATION,
-                           &rotation);
-      rotation *= 2 * G_PI;
-
-      cairo_save (cr);
-      cairo_rotate (cr, - G_PI / 2);
-      cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
-      cairo_set_line_width (cr, 5);
-
-      cairo_new_sub_path (cr);
-      cairo_arc (cr, 0, 0, 100, 0, rotation);
-      cairo_stroke (cr);
-      cairo_restore (cr);
-    }
-
-  if (axes & GDK_AXIS_FLAG_SLIDER)
-    {
-      cairo_pattern_t *pattern, *mask;
-
-      gdk_device_get_axis (info->last_source, info->axes, GDK_AXIS_SLIDER,
-                           &slider);
-
-      cairo_save (cr);
-
-      cairo_move_to (cr, 0, -10);
-      cairo_rel_line_to (cr, 0, -50);
-      cairo_rel_line_to (cr, 10, 0);
-      cairo_rel_line_to (cr, -5, 50);
-      cairo_close_path (cr);
-
-      cairo_clip_preserve (cr);
-
-      pattern = cairo_pattern_create_linear (0, -10, 0, -60);
-      cairo_pattern_add_color_stop_rgb (pattern, 0, 0, 1, 0);
-      cairo_pattern_add_color_stop_rgb (pattern, 1, 1, 0, 0);
-      cairo_set_source (cr, pattern);
-      cairo_pattern_destroy (pattern);
-
-      mask = cairo_pattern_create_linear (0, -10, 0, -60);
-      cairo_pattern_add_color_stop_rgba (mask, 0, 0, 0, 0, 1);
-      cairo_pattern_add_color_stop_rgba (mask, slider, 0, 0, 0, 1);
-      cairo_pattern_add_color_stop_rgba (mask, slider, 0, 0, 0, 0);
-      cairo_pattern_add_color_stop_rgba (mask, 1, 0, 0, 0, 0);
-      cairo_mask (cr, mask);
-      cairo_pattern_destroy (mask);
-
-      cairo_set_source_rgb (cr, 0, 0, 0);
-      cairo_stroke (cr);
-
-      cairo_restore (cr);
-    }
-
-  cairo_restore (cr);
-}
-
-static const gchar *
-tool_type_to_string (GdkDeviceToolType tool_type)
-{
-  switch (tool_type)
-    {
-    case GDK_DEVICE_TOOL_TYPE_PEN:
-      return "Pen";
-    case GDK_DEVICE_TOOL_TYPE_ERASER:
-      return "Eraser";
-    case GDK_DEVICE_TOOL_TYPE_BRUSH:
-      return "Brush";
-    case GDK_DEVICE_TOOL_TYPE_PENCIL:
-      return "Pencil";
-    case GDK_DEVICE_TOOL_TYPE_AIRBRUSH:
-      return "Airbrush";
-    case GDK_DEVICE_TOOL_TYPE_MOUSE:
-      return "Mouse";
-    case GDK_DEVICE_TOOL_TYPE_LENS:
-      return "Lens cursor";
-    case GDK_DEVICE_TOOL_TYPE_UNKNOWN:
-    default:
-      return "Unknown";
-    }
-}
-
-static void
-draw_device_info (GtkWidget        *widget,
-                  cairo_t          *cr,
-                  GdkEventSequence *sequence,
-                  gint             *y,
-                  AxesInfo         *info)
-{
-  PangoLayout *layout;
-  GString *string;
-  gint height;
-
-  cairo_save (cr);
-
-  string = g_string_new (NULL);
-  g_string_append_printf (string, "Source: %s",
-                          gdk_device_get_name (info->last_source));
-
-  if (sequence)
-    g_string_append_printf (string, "\nSequence: %d",
-                            GPOINTER_TO_UINT (sequence));
-
-  if (info->last_tool)
-    {
-      const gchar *tool_type;
-      guint64 serial;
-
-      tool_type = tool_type_to_string (gdk_device_tool_get_tool_type (info->last_tool));
-      serial = gdk_device_tool_get_serial (info->last_tool);
-      g_string_append_printf (string, "\nTool: %s", tool_type);
-
-      if (serial != 0)
-        g_string_append_printf (string, ", Serial: %lx", serial);
-    }
-
-  cairo_move_to (cr, 10, *y);
-  layout = gtk_widget_create_pango_layout (widget, string->str);
-  pango_cairo_show_layout (cr, layout);
-  cairo_stroke (cr);
-
-  pango_layout_get_pixel_size (layout, NULL, &height);
-
-  gdk_cairo_set_source_rgba (cr, &info->color);
-  cairo_set_line_width (cr, 10);
-  cairo_move_to (cr, 0, *y);
-
-  *y = *y + height;
-  cairo_line_to (cr, 0, *y);
-  cairo_stroke (cr);
-
-  cairo_restore (cr);
-
-  g_object_unref (layout);
-  g_string_free (string, TRUE);
-}
-
-static void
-draw_cb (GtkDrawingArea *da,
-         cairo_t        *cr,
-         int             width,
-         int             height,
-         gpointer        user_data)
-{
-  GtkWidget *widget = GTK_WIDGET (da);
-  EventData *data = user_data;
-  AxesInfo *info;
-  GHashTableIter iter;
-  gpointer key, value;
-  gint y = 0;
-
-  /* Draw Abs info */
-  g_hash_table_iter_init (&iter, data->pointer_info);
-
-  while (g_hash_table_iter_next (&iter, NULL, &value))
-    {
-      info = value;
-      draw_axes_info (cr, info, width, height);
-    }
-
-  g_hash_table_iter_init (&iter, data->touch_info);
-
-  while (g_hash_table_iter_next (&iter, NULL, &value))
-    {
-      info = value;
-      draw_axes_info (cr, info, width, height);
-    }
-
-  /* Draw name, color legend and misc data */
-  g_hash_table_iter_init (&iter, data->pointer_info);
-
-  while (g_hash_table_iter_next (&iter, NULL, &value))
-    {
-      info = value;
-      draw_device_info (widget, cr, NULL, &y, info);
-    }
-
-  g_hash_table_iter_init (&iter, data->touch_info);
-
-  while (g_hash_table_iter_next (&iter, &key, &value))
-    {
-      info = value;
-      draw_device_info (widget, cr, key, &y, info);
-    }
-}
-
-static void
-update_label_text (GtkWidget   *label,
-                   const gchar *text)
-{
-  gchar *markup = NULL;
-
-  if (text)
-    markup = g_strdup_printf ("<span font='48.0'>%s</span>", text);
-  gtk_label_set_markup (GTK_LABEL (label), markup);
-  g_free (markup);
-}
-
-static gboolean
-reset_label_text_timeout_cb (gpointer user_data)
-{
-  GtkWidget *label = user_data;
-
-  update_label_text (label, NULL);
-  pad_action_timeout_id = 0;
-  return G_SOURCE_REMOVE;
-}
-
-static void
-update_label_and_timeout (GtkWidget   *label,
-                          const gchar *text)
-{
-  if (pad_action_timeout_id)
-    g_source_remove (pad_action_timeout_id);
-
-  update_label_text (label, text);
-  pad_action_timeout_id = g_timeout_add (200, reset_label_text_timeout_cb, label);
-}
-
-static void
-on_action_activate (GSimpleAction *action,
-                    GVariant      *parameter,
-                    gpointer       user_data)
-{
-  GtkWidget *label = user_data;
-  const gchar *result;
-  gchar *str;
-
-  result = g_object_get_data (G_OBJECT (action), "action-result");
-
-  if (!parameter)
-    update_label_and_timeout (label, result);
-  else
-    {
-      str = g_strdup_printf ("%s %.2f", result, g_variant_get_double (parameter));
-      update_label_and_timeout (label, str);
-      g_free (str);
-    }
-}
-
-static void
-init_pad_controller (GtkWidget *window,
-                     GtkWidget *label)
-{
-  GtkPadController *pad_controller;
-  GSimpleActionGroup *action_group;
-  GSimpleAction *action;
-  gint i;
-
-  action_group = g_simple_action_group_new ();
-  pad_controller = gtk_pad_controller_new (GTK_WINDOW (window),
-                                           G_ACTION_GROUP (action_group),
-                                           NULL);
-
-  for (i = 0; i < G_N_ELEMENTS (pad_actions); i++)
-    {
-      if (pad_actions[i].type == GTK_PAD_ACTION_BUTTON)
-        {
-          action = g_simple_action_new (pad_actions[i].action_name, NULL);
-        }
-      else
-        {
-          action = g_simple_action_new_stateful (pad_actions[i].action_name,
-                                                 G_VARIANT_TYPE_DOUBLE, NULL);
-        }
-
-      g_signal_connect (action, "activate",
-                        G_CALLBACK (on_action_activate), label);
-      g_object_set_data (G_OBJECT (action), "action-result",
-                         (gpointer) pad_action_results[i]);
-      g_action_map_add_action (G_ACTION_MAP (action_group), G_ACTION (action));
-      g_object_unref (action);
-    }
-
-  gtk_pad_controller_set_action_entries (pad_controller, pad_actions,
-                                         G_N_ELEMENTS (pad_actions));
-  g_object_set_data_full (G_OBJECT (window), "pad-controller",
-                          pad_controller, g_object_unref);
-
-  g_object_unref (action_group);
-}
-
-GtkWidget *
-do_event_axes (GtkWidget *toplevel)
-{
-  static GtkWidget *window = NULL;
-  EventData *event_data;
-  GtkWidget *label;
-  GtkWidget *overlay;
-  GtkWidget *da;
-
-  if (!window)
-    {
-      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
-      gtk_window_set_title (GTK_WINDOW (window), "Touch and Drawing Tablets");
-
-      g_signal_connect (window, "destroy",
-                        G_CALLBACK (gtk_widget_destroyed), &window);
-
-      gtk_widget_set_support_multidevice (window, TRUE);
-
-      event_data = event_data_new ();
-      g_object_set_data_full (G_OBJECT (window), "gtk-demo-event-data",
-                              event_data, (GDestroyNotify) event_data_free);
-
-      da = gtk_drawing_area_new ();
-      gtk_drawing_area_set_content_width (GTK_DRAWING_AREA (da), 400);
-      gtk_drawing_area_set_content_height (GTK_DRAWING_AREA (da), 400);
-      gtk_drawing_area_set_draw_func (GTK_DRAWING_AREA (da), draw_cb, event_data, NULL);
-      gtk_widget_set_can_focus (da, TRUE);
-      gtk_widget_grab_focus (da);
-
-      g_signal_connect (da, "event",
-                        G_CALLBACK (event_cb), event_data);
-
-      label = gtk_label_new ("");
-      gtk_widget_set_halign (label, GTK_ALIGN_START);
-      gtk_widget_set_valign (label, GTK_ALIGN_START);
-      gtk_label_set_use_markup (GTK_LABEL (label), TRUE);
-
-      overlay = gtk_overlay_new ();
-      gtk_container_add (GTK_CONTAINER (window), overlay);
-      gtk_container_add (GTK_CONTAINER (overlay), da);
-      gtk_overlay_add_overlay (GTK_OVERLAY (overlay), label);
-
-      init_pad_controller (da, label);
-    }
-
-  if (!gtk_widget_get_visible (window))
-    gtk_widget_show (window);
-  else
-    gtk_widget_destroy (window);
-
-  return window;
-}

demos/gtk-demo/expander.c

@@ -73,7 +73,7 @@ do_expander (GtkWidget *do_widget)
                                 "resize the window. Do it already !", -1);
       gtk_container_add (GTK_CONTAINER (sw), tv);
       gtk_container_add (GTK_CONTAINER (expander), sw);
-      gtk_box_pack_end (GTK_BOX (area), expander);
+      gtk_container_add (GTK_CONTAINER (area), expander);
       g_signal_connect (expander, "notify::expanded",
                         G_CALLBACK (expander_cb), window);
 

demos/gtk-demo/filtermodel.ui

@@ -1,12 +1,8 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!-- Generated with glade 3.18.1 -->
 <interface>
   <requires lib="gtk+" version="3.16"/>
   <object class="GtkListStore" id="liststore1">
     <columns>
-      <!-- column-name width -->
       <column type="gint"/>
-      <!-- column-name height -->
       <column type="gint"/>
     </columns>
     <data>
@@ -43,7 +39,7 @@
             <property name="label" translatable="yes">Original</property>
             <property name="xalign">0</property>
             <attributes>
-              <attribute name="weight" value="bold"/>
+              <attribute name="weight" value="bold"></attribute>
             </attributes>
             <accessibility>
               <relation type="label-for" target="treeview1"/>
@@ -149,7 +145,7 @@
             <property name="label" translatable="yes">Computed Columns</property>
             <property name="xalign">0</property>
             <attributes>
-              <attribute name="weight" value="bold"/>
+              <attribute name="weight" value="bold"></attribute>
             </attributes>
             <accessibility>
               <relation type="label-for" target="treeview2"/>
@@ -165,7 +161,7 @@
             <property name="label" translatable="yes">Filtered</property>
             <property name="xalign">0</property>
             <attributes>
-              <attribute name="weight" value="bold"/>
+              <attribute name="weight" value="bold"></attribute>
             </attributes>
             <accessibility>
               <relation type="label-for" target="treeview3"/>

demos/gtk-demo/fishbowl.c

@@ -8,165 +8,273 @@
 #include <gtk/gtk.h>
 
 #include "gtkfishbowl.h"
+#include "gtkgears.h"
 
-GtkWidget *allow_changes;
+const char *const css =
+".blurred-button {"
+"  box-shadow: 0px 0px 5px 10px rgba(0, 0, 0, 0.5);"
+"}"
+"";
 
-#define N_STATS 5
+char **icon_names = NULL;
+gsize n_icon_names = 0;
 
-#define STATS_UPDATE_TIME G_USEC_PER_SEC
+static void
+init_icon_names (GtkIconTheme *theme)
+{
+  GPtrArray *icons;
+  GList *l, *icon_list;
 
-typedef struct _Stats Stats;
-struct _Stats {
-  gint64 last_stats;
-  gint64 last_frame;
-  gint last_suggestion;
-  guint frame_counter_max;
+  if (icon_names)
+    return;
 
-  guint stats_index;
-  guint frame_counter[N_STATS];
-  guint item_counter[N_STATS];
+  icon_list = gtk_icon_theme_list_icons (theme, NULL);
+  icons = g_ptr_array_new ();
+
+  for (l = icon_list; l; l = l->next)
+    {
+      if (g_str_has_suffix (l->data, "symbolic"))
+        continue;
+
+      g_ptr_array_add (icons, g_strdup (l->data));
+    }
+
+  n_icon_names = icons->len;
+  g_ptr_array_add (icons, NULL); /* NULL-terminate the array */
+  icon_names = (char **) g_ptr_array_free (icons, FALSE);
+
+  /* don't free strings, we assigned them to the array */
+  g_list_free_full (icon_list, g_free);
+}
+
+static const char *
+get_random_icon_name (GtkIconTheme *theme)
+{
+  init_icon_names (theme);
+
+  return icon_names[g_random_int_range(0, n_icon_names)];
+}
+
+GtkWidget *
+create_icon (void)
+{
+  GtkWidget *image;
+
+  image = gtk_image_new_from_icon_name (get_random_icon_name (gtk_icon_theme_get_default ()));
+  gtk_image_set_icon_size (GTK_IMAGE (image), GTK_ICON_SIZE_LARGE);
+
+  return image;
+}
+
+static GtkWidget *
+create_button (void)
+{
+  return gtk_button_new_with_label ("Button");
+}
+
+static GtkWidget *
+create_blurred_button (void)
+{
+  GtkWidget *w = gtk_button_new ();
+
+  gtk_style_context_add_class (gtk_widget_get_style_context (w), "blurred-button");
+
+  return w;
+}
+
+static GtkWidget *
+create_font_button (void)
+{
+  return gtk_font_button_new ();
+}
+
+static GtkWidget *
+create_level_bar (void)
+{
+  GtkWidget *w = gtk_level_bar_new_for_interval (0, 100);
+
+  gtk_level_bar_set_value (GTK_LEVEL_BAR (w), 50);
+
+  /* Force them to be a bit larger */
+  gtk_widget_set_size_request (w, 200, -1);
+
+  return w;
+}
+
+static GtkWidget *
+create_spinner (void)
+{
+  GtkWidget *w = gtk_spinner_new ();
+
+  gtk_spinner_start (GTK_SPINNER (w));
+
+  return w;
+}
+
+static GtkWidget *
+create_spinbutton (void)
+{
+  GtkWidget *w = gtk_spin_button_new_with_range (0, 10, 1);
+
+  return w;
+}
+
+static GtkWidget *
+create_label (void)
+{
+  GtkWidget *w = gtk_label_new ("pLorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua.");
+
+  gtk_label_set_line_wrap (GTK_LABEL (w), TRUE);
+  gtk_label_set_max_width_chars (GTK_LABEL (w), 100);
+
+  return w;
+}
+
+static GtkWidget *
+create_video (void)
+{
+  GtkMediaStream *stream = gtk_media_file_new_for_resource ("/images/gtk-logo.webm");
+  GtkWidget *w = gtk_picture_new_for_paintable (GDK_PAINTABLE (stream));
+
+  gtk_widget_set_size_request (w, 64, 64);
+  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 GtkWidget *
+create_switch (void)
+{
+  GtkWidget *w = gtk_switch_new ();
+
+  gtk_switch_set_state (GTK_SWITCH (w), TRUE);
+
+  return w;
+}
+
+static const struct {
+  const char *name;
+  GtkWidget * (*create_func) (void);
+} widget_types[] = {
+  { "Icon",       create_icon           },
+  { "Button",     create_button         },
+  { "Blurbutton", create_blurred_button },
+  { "Fontbutton", create_font_button    },
+  { "Levelbar",   create_level_bar      },
+  { "Label",      create_label          },
+  { "Spinner",    create_spinner        },
+  { "Spinbutton", create_spinbutton     },
+  { "Video",      create_video          },
+  { "Gears",      create_gears          },
+  { "Switch",     create_switch         },
 };
 
-static Stats *
-get_stats (GtkWidget *widget)
-{
-  static GQuark stats_quark = 0;
-  Stats *stats;
-
-  if (G_UNLIKELY (stats_quark == 0))
-    stats_quark = g_quark_from_static_string ("stats");
-
-  stats = g_object_get_qdata (G_OBJECT (widget), stats_quark);
-  if (stats == NULL)
-    {
-      stats = g_new0 (Stats, 1);
-      g_object_set_qdata_full (G_OBJECT (widget), stats_quark, stats, g_free);
-      stats->last_frame = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
-      stats->last_stats = stats->last_frame;
-    }
-
-  return stats;
-}
+static int selected_widget_type = -1;
+static const int N_WIDGET_TYPES = G_N_ELEMENTS (widget_types);
 
 static void
-do_stats (GtkWidget *widget,
-          GtkWidget *info_label,
-          gint      *suggested_change)
+set_widget_type (GtkFishbowl *fishbowl,
+                 int          widget_type_index)
 {
-  Stats *stats;
-  gint64 frame_time;
+  GtkWidget *window, *headerbar;
 
-  stats = get_stats (widget);
-  frame_time = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
+  if (widget_type_index == selected_widget_type)
+    return;
 
-  if (stats->last_stats + STATS_UPDATE_TIME < frame_time)
-    {
-      char *new_label;
-      guint i, n_frames;
+  selected_widget_type = widget_type_index;
 
-      n_frames = 0;
-      for (i = 0; i < N_STATS; i++)
-        {
-          n_frames += stats->frame_counter[i];
-        }
-      
-      new_label = g_strdup_printf ("icons - %.1f fps",
-                                   (double) G_USEC_PER_SEC * n_frames
-                                       / (N_STATS * STATS_UPDATE_TIME));
-      gtk_label_set_label (GTK_LABEL (info_label), new_label);
-      g_free (new_label);
+  gtk_fishbowl_set_creation_func (fishbowl,
+                                  widget_types[selected_widget_type].create_func);
 
-      if (stats->frame_counter[stats->stats_index] >= 19 * stats->frame_counter_max / 20)
-        {
-          if (stats->last_suggestion > 0)
-            stats->last_suggestion *= 2;
-          else
-            stats->last_suggestion = 1;
-        }
-      else
-        {
-          if (stats->last_suggestion < 0)
-            stats->last_suggestion--;
-          else
-            stats->last_suggestion = -1;
-          stats->last_suggestion = MAX (stats->last_suggestion, 1 - (int) stats->item_counter[stats->stats_index]);
-        }
+  window = gtk_widget_get_toplevel (GTK_WIDGET (fishbowl));
+  headerbar = gtk_window_get_titlebar (GTK_WINDOW (window));
+  gtk_header_bar_set_title (GTK_HEADER_BAR (headerbar),
+                            widget_types[selected_widget_type].name);
+}
 
-      stats->stats_index = (stats->stats_index + 1) % N_STATS;
-      stats->frame_counter[stats->stats_index] = 0;
-      stats->item_counter[stats->stats_index] = stats->item_counter[(stats->stats_index + N_STATS - 1) % N_STATS];
-      stats->last_stats = frame_time;
-      
-      if (suggested_change)
-        *suggested_change = stats->last_suggestion;
-      else
-        stats->last_suggestion = 0;
-    }
+void
+next_button_clicked_cb (GtkButton *source,
+                        gpointer   user_data)
+{
+  GtkFishbowl *fishbowl = user_data;
+  int new_index;
+
+  if (selected_widget_type + 1 >= N_WIDGET_TYPES)
+    new_index = 0;
   else
-    {
-      if (suggested_change)
-        *suggested_change = 0;
-    }
+    new_index = selected_widget_type + 1;
 
-  stats->last_frame = frame_time;
-  stats->frame_counter[stats->stats_index]++;
-  stats->frame_counter_max = MAX (stats->frame_counter_max, stats->frame_counter[stats->stats_index]);
+  set_widget_type (fishbowl, new_index);
 }
 
-static void
-stats_update (GtkWidget *widget)
+void
+prev_button_clicked_cb (GtkButton *source,
+                        gpointer   user_data)
 {
-  Stats *stats;
+  GtkFishbowl *fishbowl = user_data;
+  int new_index;
 
-  stats = get_stats (widget);
+  if (selected_widget_type - 1 < 0)
+    new_index = N_WIDGET_TYPES - 1;
+  else
+    new_index = selected_widget_type - 1;
 
-  stats->item_counter[stats->stats_index] = gtk_fishbowl_get_count (GTK_FISHBOWL (widget));
+  set_widget_type (fishbowl, new_index);
 }
 
-static gboolean
-move_fish (GtkWidget     *bowl,
-           GdkFrameClock *frame_clock,
-           gpointer       info_label)
-{
-  gint suggested_change = 0;
-  
-  do_stats (bowl,
-            info_label,
-            !gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (allow_changes)) ? &suggested_change : NULL);
-
-  gtk_fishbowl_set_count (GTK_FISHBOWL (bowl),
-                          gtk_fishbowl_get_count (GTK_FISHBOWL (bowl)) + suggested_change);
-  stats_update (bowl);
-
-  return G_SOURCE_CONTINUE;
-}
 
 GtkWidget *
 do_fishbowl (GtkWidget *do_widget)
 {
   static GtkWidget *window = NULL;
+  static GtkCssProvider *provider = NULL;
+
+  if (provider == NULL)
+    {
+      provider = gtk_css_provider_new ();
+      gtk_css_provider_load_from_data (provider, css, -1);
+      gtk_style_context_add_provider_for_display (gdk_display_get_default (),
+                                                  GTK_STYLE_PROVIDER (provider),
+                                                  GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
+    }
 
   if (!window)
     {
       GtkBuilder *builder;
-      GtkWidget *bowl, *info_label;
+      GtkWidget *bowl;
 
       g_type_ensure (GTK_TYPE_FISHBOWL);
 
       builder = gtk_builder_new_from_resource ("/fishbowl/fishbowl.ui");
+      gtk_builder_add_callback_symbols (builder,
+                                        "next_button_clicked_cb", G_CALLBACK (next_button_clicked_cb),
+                                        "prev_button_clicked_cb", G_CALLBACK (prev_button_clicked_cb),
+                                        NULL);
       gtk_builder_connect_signals (builder, NULL);
       window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
+      g_signal_connect (window, "destroy",
+                        G_CALLBACK (gtk_widget_destroyed), &window);
       bowl = GTK_WIDGET (gtk_builder_get_object (builder, "bowl"));
-      gtk_fishbowl_set_use_icons (GTK_FISHBOWL (bowl), TRUE);
-      info_label = GTK_WIDGET (gtk_builder_get_object (builder, "info_label"));
-      allow_changes = GTK_WIDGET (gtk_builder_get_object (builder, "changes_allow"));
+      selected_widget_type = -1;
+      set_widget_type (GTK_FISHBOWL (bowl), 0);
       gtk_window_set_display (GTK_WINDOW (window),
                               gtk_widget_get_display (do_widget));
       g_signal_connect (window, "destroy",
                         G_CALLBACK (gtk_widget_destroyed), &window);
 
       gtk_widget_realize (window);
-      gtk_widget_add_tick_callback (bowl, move_fish, info_label, NULL);
     }
 
   if (!gtk_widget_get_visible (window))
@@ -174,6 +282,5 @@ do_fishbowl (GtkWidget *do_widget)
   else
     gtk_widget_destroy (window);
 
-
   return window;
 }

demos/gtk-demo/fishbowl.ui

@@ -1,13 +1,47 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <interface>
-  <!-- interface-requires gtk+ 3.6 -->
   <object class="GtkWindow" id="window">
     <property name="title" translatable="yes">Fishbowl</property>
     <child type="titlebar">
       <object class="GtkHeaderBar" id="">
         <property name="show-title-buttons">1</property>
         <child>
-          <object class="GtkLabel" id="info_label">
+          <object class="GtkBox">
+            <style>
+              <class name="linked"/>
+            </style>
+            <child>
+              <object class="GtkButton">
+                <property name="icon-name">pan-start-symbolic</property>
+                <signal name="clicked" handler="prev_button_clicked_cb" object="bowl" swapped="no"/>
+              </object>
+            </child>
+            <child>
+              <object class="GtkButton">
+                <property name="icon-name">pan-end-symbolic</property>
+                <signal name="clicked" handler="next_button_clicked_cb" object="bowl" swapped="no"/>
+              </object>
+            </child>
+          </object>
+        </child>
+        <child>
+          <object class="GtkLabel">
+            <property name="label">fps</property>
+          </object>
+          <packing>
+            <property name="pack-type">end</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkLabel">
+            <property name="label" bind-source="bowl" bind-property="framerate"/>
+          </object>
+          <packing>
+            <property name="pack-type">end</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkLabel">
+            <property name="label">Icons, </property>
           </object>
           <packing>
             <property name="pack-type">end</property>
@@ -33,8 +67,8 @@
         </child>
         <child>
           <object class="GtkToggleButton" id="changes_prevent">
-            <property name="active" bind-source="changes_allow" bind-property="active" bind-flags="bidirectional|invert-boolean">True</property>
-            <property name="visible" bind-source="changes_prevent" bind-property="active" bind-flags="invert-boolean">False</property>
+            <property name="active" bind-source="changes_allow" bind-property="active" bind-flags="bidirectional|invert-boolean">1</property>
+            <property name="visible" bind-source="changes_prevent" bind-property="active" bind-flags="invert-boolean">0</property>
             <property name="icon-name">changes-prevent</property>
             <property name="relief">none</property>
           </object>
@@ -48,6 +82,7 @@
       <object class="GtkFishbowl" id="bowl">
         <property name="visible">True</property>
         <property name="animating">True</property>
+        <property name="benchmark" bind-source="changes_allow" bind-property="active" bind-flags="invert-boolean">1</property>
       </object>
     </child>
   </object>

demos/gtk-demo/font-features.ui

@@ -1,5 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!-- Generated with glade 3.18.1 -->
 <interface>
   <requires lib="gtk+" version="3.12"/>
   <object class="GtkWindow" id="window">
@@ -42,6 +40,7 @@
                         <property name="can-focus">1</property>
                         <property name="receives-default">1</property>
                         <property name="font">Sans 12</property>
+                        <property name="level">family|style|size|variations|features</property>
                         <signal name="font-set" handler="font_changed" swapped="no"/>
                       </object>
                     </child>
@@ -52,7 +51,7 @@
                             <property name="xalign">0</property>
                             <property name="label" translatable="yes">Font Features</property>
                             <attributes>
-                              <attribute name="weight" value="bold"/>
+                              <attribute name="weight" value="bold"></attribute>
                             </attributes>
                           </object>
                         </child>
@@ -83,7 +82,7 @@
                             <property name="label" translatable="yes">Font Variations</property>
                             <property name="xalign">0</property>
                             <attributes>
-                              <attribute name="weight" value="bold"/>
+                              <attribute name="weight" value="bold"></attribute>
                             </attributes>
                           </object>
                         </child>
@@ -114,32 +113,35 @@
             <child>
               <object class="GtkStack" id="stack">
                 <child>
-                  <object class="GtkLabel" id="label">
-                    <property name="wrap">1</property>
-                    <property name="xalign">0</property>
-                    <property name="yalign">0</property>
-                    <property name="valign">start</property>
-                    <property name="selectable">1</property>
-                  </object>
-                  <packing>
+                  <object class="GtkStackPage">
                     <property name="name">label</property>
-                  </packing>
+                    <property name="child">
+                      <object class="GtkLabel" id="label">
+                        <property name="wrap">1</property>
+                        <property name="xalign">0</property>
+                        <property name="yalign">0</property>
+                        <property name="valign">start</property>
+                        <property name="selectable">1</property>
+                      </object>
+                    </property>
+                  </object>
                 </child>
                 <child>
-                  <object class="GtkEntry" id="entry">
-                    <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.
+                  <object class="GtkStackPage">
+                    <property name="name">entry</property>
+                    <property name="child">
+                      <object class="GtkEntry" id="entry">
+                        <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!
 
 Τάχιστη αλώπηξ βαφής ψημένη γη, δρασκελίζει υπέρ νωθρού κυνός</property>
-                    <signal name="key-press-event" handler="entry_key_press"/>
-                    <signal name="activate" handler="stop_edit"/>
-                    <property name="valign">start</property>
-                    <property name="width-chars">50</property>
+                        <signal name="activate" handler="stop_edit"/>
+                        <property name="valign">start</property>
+                        <property name="width-chars">50</property>
+                      </object>
+                    </property>
                   </object>
-                  <packing>
-                    <property name="name">entry</property>
-                  </packing>
                 </child>
               </object>
             </child>

demos/gtk-demo/font_features.c

@@ -305,7 +305,7 @@ update_display (void)
   char *font_desc;
   char *features;
 
-  text = gtk_entry_get_text (GTK_ENTRY (entry));
+  text = gtk_editable_get_text (GTK_EDITABLE (entry));
 
   if (gtk_label_get_selection_bounds (GTK_LABEL (label), &ins, &bound))
     {
@@ -478,6 +478,8 @@ script_sort_func (GtkTreeModel *model,
   return ret;
 }
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
 static void
 update_script_combo (void)
 {
@@ -595,6 +597,8 @@ update_script_combo (void)
     gtk_combo_box_set_active_iter (GTK_COMBO_BOX (script_lang), 0);
 }
 
+#pragma GCC diagnostic pop
+
 static void
 update_features (void)
 {
@@ -728,7 +732,7 @@ adjustment_changed (GtkAdjustment *adjustment,
   char *str;
 
   str = g_strdup_printf ("%g", gtk_adjustment_get_value (adjustment));
-  gtk_entry_set_text (GTK_ENTRY (entry), str);
+  gtk_editable_set_text (GTK_EDITABLE (entry), str);
   g_free (str);
 
   update_display ();
@@ -741,7 +745,7 @@ entry_activated (GtkEntry *entry,
   gdouble value;
   gchar *err = NULL;
 
-  value = g_strtod (gtk_entry_get_text (entry), &err);
+  value = g_strtod (gtk_editable_get_text (GTK_EDITABLE (entry)), &err);
   if (err != NULL)
     gtk_adjustment_set_value (adjustment, value);
 }
@@ -821,7 +825,7 @@ add_axis (FT_Var_Axis *ax, FT_Fixed value, int i)
   gtk_grid_attach (GTK_GRID (variations_grid), axis_scale, 1, i, 1, 1);
   axis_entry = gtk_entry_new ();
   gtk_widget_set_valign (axis_entry, GTK_ALIGN_BASELINE);
-  gtk_entry_set_width_chars (GTK_ENTRY (axis_entry), 4);
+  gtk_editable_set_width_chars (GTK_EDITABLE (axis_entry), 4);
   gtk_grid_attach (GTK_GRID (variations_grid), axis_entry, 2, i, 1, 1);
 
   axis = g_new (Axis, 1);
@@ -1639,7 +1643,7 @@ static char *text;
 static void
 switch_to_entry (void)
 {
-  text = g_strdup (gtk_entry_get_text (GTK_ENTRY (entry)));
+  text = g_strdup (gtk_editable_get_text (GTK_EDITABLE (entry)));
   gtk_stack_set_visible_child_name (GTK_STACK (stack), "entry");
   gtk_widget_grab_focus (entry);
 }
@@ -1669,15 +1673,15 @@ stop_edit (void)
 }
 
 static gboolean
-entry_key_press (GtkEntry *entry, GdkEventKey *event)
+entry_key_press (GtkEventController *controller,
+                 guint               keyval,
+                 guint               keycode,
+                 GdkModifierType     modifiers,
+                 GtkEntry           *entry)
 {
-  guint keyval;
-
-  gdk_event_get_keyval ((GdkEvent *)event, &keyval);
-
   if (keyval == GDK_KEY_Escape)
     {
-      gtk_entry_set_text (GTK_ENTRY (entry), text);
+      gtk_editable_set_text (GTK_EDITABLE (entry), text);
       stop_edit ();
       return GDK_EVENT_STOP;
     }
@@ -1694,6 +1698,7 @@ do_font_features (GtkWidget *do_widget)
     {
       GtkBuilder *builder;
       GtkWidget *feature_list;
+      GtkEventController *controller;
 
       builder = gtk_builder_new_from_resource ("/font_features/font-features.ui");
 
@@ -1703,7 +1708,6 @@ do_font_features (GtkWidget *do_widget)
       gtk_builder_add_callback_symbol (builder, "reset", reset_features);
       gtk_builder_add_callback_symbol (builder, "stop_edit", G_CALLBACK (stop_edit));
       gtk_builder_add_callback_symbol (builder, "toggle_edit", G_CALLBACK (toggle_edit));
-      gtk_builder_add_callback_symbol (builder, "entry_key_press", G_CALLBACK (entry_key_press));
       gtk_builder_connect_signals (builder, NULL);
 
       window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
@@ -1718,6 +1722,11 @@ do_font_features (GtkWidget *do_widget)
       entry = GTK_WIDGET (gtk_builder_get_object (builder, "entry"));
       edit_toggle = GTK_WIDGET (gtk_builder_get_object (builder, "edit_toggle"));
 
+      controller = gtk_event_controller_key_new ();
+      g_object_set_data_full (G_OBJECT (entry), "controller", controller, g_object_unref);
+      g_signal_connect (controller, "key-pressed", G_CALLBACK (entry_key_press), entry);
+      gtk_widget_add_controller (entry, controller);
+
       add_check_group (feature_list, _("Kerning"), (const char *[]){ "kern", NULL });
       add_check_group (feature_list, _("Ligatures"), (const char *[]){ "liga",
                                                                        "dlig",

demos/gtk-demo/fontplane.c

@@ -68,8 +68,7 @@ plane_snapshot (GtkWidget   *widget,
   height = gtk_widget_get_allocated_height (widget);
 
   cr = gtk_snapshot_append_cairo (snapshot,
-                                  &GRAPHENE_RECT_INIT (0, 0, width, height),
-                                  "FontPlane");
+                                  &GRAPHENE_RECT_INIT (0, 0, width, height));
 
   cairo_set_source_rgb (cr, 0, 0, 0);
   cairo_rectangle (cr, 0, 0, width, height);
@@ -208,23 +207,27 @@ plane_drag_gesture_end (GtkGestureDrag *gesture,
 static void
 gtk_font_plane_init (GtkFontPlane *plane)
 {
+  GtkGesture *gesture;
+
   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));
-  g_signal_connect (plane->drag_gesture, "drag-begin",
+  gesture = gtk_gesture_drag_new ();
+  g_signal_connect (gesture, "drag-begin",
 		    G_CALLBACK (plane_drag_gesture_begin), plane);
-  g_signal_connect (plane->drag_gesture, "drag-update",
+  g_signal_connect (gesture, "drag-update",
 		    G_CALLBACK (plane_drag_gesture_update), plane);
-  g_signal_connect (plane->drag_gesture, "drag-end",
+  g_signal_connect (gesture, "drag-end",
 		    G_CALLBACK (plane_drag_gesture_end), plane);
-  gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (plane->drag_gesture), 0);
+  gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), 0);
+  gtk_widget_add_controller (GTK_WIDGET (plane), GTK_EVENT_CONTROLLER (gesture));
 
-  plane->long_press_gesture = gtk_gesture_long_press_new (GTK_WIDGET (plane));
-  g_signal_connect (plane->long_press_gesture, "pressed",
+  gesture = gtk_gesture_long_press_new ();
+  g_signal_connect (gesture, "pressed",
                     G_CALLBACK (hold_action), plane);
-  gtk_gesture_single_set_touch_only (GTK_GESTURE_SINGLE (plane->long_press_gesture),
+  gtk_gesture_single_set_touch_only (GTK_GESTURE_SINGLE (gesture),
                                      TRUE);
+  gtk_widget_add_controller (GTK_WIDGET (plane), GTK_EVENT_CONTROLLER (gesture));
 }
 
 static void
@@ -235,9 +238,6 @@ plane_finalize (GObject *object)
   g_clear_object (&plane->weight_adj);
   g_clear_object (&plane->width_adj);
 
-  g_clear_object (&plane->drag_gesture);
-  g_clear_object (&plane->long_press_gesture);
-
   G_OBJECT_CLASS (gtk_font_plane_parent_class)->finalize (object);
 }
 

demos/gtk-demo/fontplane.h

@@ -41,7 +41,6 @@ struct _GtkFontPlane
   GtkAdjustment *width_adj;
 
   GtkGesture *drag_gesture;
-  GtkGesture *long_press_gesture;
 };
 
 struct _GtkFontPlaneClass

demos/gtk-demo/foreigndrawing.c

@@ -1,8 +1,8 @@
 /* Foreign drawing
  *
- * Many applications can't use GTK+ widgets, for a variety of reasons,
+ * Many applications can't use GTK widgets, for a variety of reasons,
  * but still want their user interface to appear integrated with the
- * rest of the desktop, and follow GTK+ themes. This demo shows how to
+ * rest of the desktop, and follow GTK themes. This demo shows how to
  * use GtkStyleContext and the gtk_render_ APIs to achieve this.
  *
  * Note that this is a very simple, non-interactive example.

demos/gtk-demo/gestures.c

@@ -157,16 +157,15 @@ do_gestures (GtkWidget *do_widget)
                                       NULL, NULL);
 
       /* Swipe */
-      gesture = gtk_gesture_swipe_new (drawing_area);
+      gesture = gtk_gesture_swipe_new ();
       g_signal_connect (gesture, "swipe",
                         G_CALLBACK (swipe_gesture_swept), drawing_area);
       gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture),
                                                   GTK_PHASE_BUBBLE);
-      g_object_weak_ref (G_OBJECT (drawing_area), (GWeakNotify) g_object_unref, gesture);
+      gtk_widget_add_controller (drawing_area, GTK_EVENT_CONTROLLER (gesture));
 
       /* 3fg swipe for touchpads */
       gesture = g_object_new (GTK_TYPE_GESTURE_SWIPE,
-                              "widget", drawing_area,
                               "n-points", 3,
                               NULL);
       g_signal_connect (gesture, "begin",
@@ -175,33 +174,34 @@ do_gestures (GtkWidget *do_widget)
                         G_CALLBACK (swipe_gesture_swept), drawing_area);
       gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture),
                                                   GTK_PHASE_BUBBLE);
-      g_object_weak_ref (G_OBJECT (drawing_area), (GWeakNotify) g_object_unref, gesture);
+      gtk_widget_add_controller (drawing_area, GTK_EVENT_CONTROLLER (gesture));
+
 
       /* Long press */
-      gesture = gtk_gesture_long_press_new (drawing_area);
+      gesture = gtk_gesture_long_press_new ();
       g_signal_connect (gesture, "pressed",
                         G_CALLBACK (long_press_gesture_pressed), drawing_area);
       g_signal_connect (gesture, "end",
                         G_CALLBACK (long_press_gesture_end), drawing_area);
       gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture),
                                                   GTK_PHASE_BUBBLE);
-      g_object_weak_ref (G_OBJECT (drawing_area), (GWeakNotify) g_object_unref, gesture);
+      gtk_widget_add_controller (drawing_area, GTK_EVENT_CONTROLLER (gesture));
 
       /* Rotate */
-      rotate = gesture = gtk_gesture_rotate_new (drawing_area);
+      rotate = gesture = gtk_gesture_rotate_new ();
       g_signal_connect (gesture, "angle-changed",
                         G_CALLBACK (rotation_angle_changed), drawing_area);
       gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture),
                                                   GTK_PHASE_BUBBLE);
-      g_object_weak_ref (G_OBJECT (drawing_area), (GWeakNotify) g_object_unref, gesture);
+      gtk_widget_add_controller (drawing_area, GTK_EVENT_CONTROLLER (gesture));
 
       /* Zoom */
-      zoom = gesture = gtk_gesture_zoom_new (drawing_area);
+      zoom = gesture = gtk_gesture_zoom_new ();
       g_signal_connect (gesture, "scale-changed",
                         G_CALLBACK (zoom_scale_changed), drawing_area);
       gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture),
                                                   GTK_PHASE_BUBBLE);
-      g_object_weak_ref (G_OBJECT (drawing_area), (GWeakNotify) g_object_unref, gesture);
+      gtk_widget_add_controller (drawing_area, GTK_EVENT_CONTROLLER (gesture));
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/gtkfishbowl.c

@@ -24,13 +24,18 @@ typedef struct _GtkFishbowlChild         GtkFishbowlChild;
 
 struct _GtkFishbowlPrivate
 {
+  GtkFishCreationFunc creation_func;
   GList *children;
   guint count;
 
   gint64 last_frame_time;
+  gint64 update_delay;
   guint tick_id;
 
-  guint use_icons: 1;
+  double framerate;
+  int last_benchmark_change;
+
+  guint benchmark : 1;
 };
 
 struct _GtkFishbowlChild
@@ -45,18 +50,25 @@ struct _GtkFishbowlChild
 enum {
    PROP_0,
    PROP_ANIMATING,
+   PROP_BENCHMARK,
    PROP_COUNT,
+   PROP_FRAMERATE,
+   PROP_UPDATE_DELAY,
    NUM_PROPERTIES
 };
 
 static GParamSpec *props[NUM_PROPERTIES] = { NULL, };
 
-G_DEFINE_TYPE_WITH_PRIVATE (GtkFishbowl, gtk_fishbowl, GTK_TYPE_CONTAINER)
+G_DEFINE_TYPE_WITH_PRIVATE (GtkFishbowl, gtk_fishbowl, GTK_TYPE_WIDGET)
 
 static void
 gtk_fishbowl_init (GtkFishbowl *fishbowl)
 {
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
   gtk_widget_set_has_surface (GTK_WIDGET (fishbowl), FALSE);
+
+  priv->update_delay = G_USEC_PER_SEC;
 }
 
 /**
@@ -72,15 +84,6 @@ gtk_fishbowl_new (void)
   return g_object_new (GTK_TYPE_FISHBOWL, NULL);
 }
 
-void
-gtk_fishbowl_set_use_icons (GtkFishbowl *fishbowl,
-                            gboolean     use_icons)
-{
-  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
-
-  priv->use_icons = use_icons;
-}
-
 static void
 gtk_fishbowl_measure (GtkWidget      *widget,
                       GtkOrientation  orientation,
@@ -125,10 +128,10 @@ gtk_fishbowl_measure (GtkWidget      *widget,
 }
 
 static void
-gtk_fishbowl_size_allocate (GtkWidget           *widget,
-                            const GtkAllocation *allocation,
-                            int                  baseline,
-                            GtkAllocation       *out_clip)
+gtk_fishbowl_size_allocate (GtkWidget *widget,
+                            int        width,
+                            int        height,
+                            int        baseline)
 {
   GtkFishbowl *fishbowl = GTK_FISHBOWL (widget);
   GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
@@ -139,20 +142,18 @@ gtk_fishbowl_size_allocate (GtkWidget           *widget,
 
   for (children = priv->children; children; children = children->next)
     {
-      GtkAllocation child_clip;
-
       child = children->data;
 
       if (!gtk_widget_get_visible (child->widget))
         continue;
 
       gtk_widget_get_preferred_size (child->widget, &child_requisition, NULL);
-      child_allocation.x = allocation->x + round (child->x * (allocation->width - child_requisition.width));
-      child_allocation.y = allocation->y + round (child->y * (allocation->height - child_requisition.height));
+      child_allocation.x = round (child->x * (width - child_requisition.width));
+      child_allocation.y = round (child->y * (height - child_requisition.height));
       child_allocation.width = child_requisition.width;
       child_allocation.height = child_requisition.height;
 
-      gtk_widget_size_allocate (child->widget, &child_allocation, -1, &child_clip);
+      gtk_widget_size_allocate (child->widget, &child_allocation, -1);
     }
 }
 
@@ -164,10 +165,9 @@ new_speed (void)
 }
 
 static void
-gtk_fishbowl_add (GtkContainer *container,
-                  GtkWidget    *widget)
+gtk_fishbowl_add (GtkFishbowl *fishbowl,
+                  GtkWidget   *widget)
 {
-  GtkFishbowl *fishbowl = GTK_FISHBOWL (container);
   GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
   GtkFishbowlChild *child_info;
 
@@ -189,13 +189,12 @@ gtk_fishbowl_add (GtkContainer *container,
 }
 
 static void
-gtk_fishbowl_remove (GtkContainer *container,
-                     GtkWidget    *widget)
+gtk_fishbowl_remove (GtkFishbowl *fishbowl,
+                     GtkWidget   *widget)
 {
-  GtkFishbowl *fishbowl = GTK_FISHBOWL (container);
   GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
   GtkFishbowlChild *child;
-  GtkWidget *widget_container = GTK_WIDGET (container);
+  GtkWidget *widget_bowl = GTK_WIDGET (fishbowl);
   GList *children;
 
   for (children = priv->children; children; children = children->next)
@@ -212,8 +211,8 @@ gtk_fishbowl_remove (GtkContainer *container,
           g_list_free (children);
           g_free (child);
 
-          if (was_visible && gtk_widget_get_visible (widget_container))
-            gtk_widget_queue_resize (widget_container);
+          if (was_visible && gtk_widget_get_visible (widget_bowl))
+            gtk_widget_queue_resize (widget_bowl);
 
           priv->count--;
           g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_COUNT]);
@@ -222,26 +221,6 @@ gtk_fishbowl_remove (GtkContainer *container,
     }
 }
 
-static void
-gtk_fishbowl_forall (GtkContainer *container,
-                     GtkCallback   callback,
-                     gpointer      callback_data)
-{
-  GtkFishbowl *fishbowl = GTK_FISHBOWL (container);
-  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
-  GtkFishbowlChild *child;
-  GList *children;
-
-  children = priv->children;
-  while (children)
-    {
-      child = children->data;
-      children = children->next;
-
-      (* callback) (child->widget, callback_data);
-    }
-}
-
 static void
 gtk_fishbowl_dispose (GObject *object)
 {
@@ -267,10 +246,18 @@ gtk_fishbowl_set_property (GObject         *object,
       gtk_fishbowl_set_animating (fishbowl, g_value_get_boolean (value));
       break;
 
+    case PROP_BENCHMARK:
+      gtk_fishbowl_set_benchmark (fishbowl, g_value_get_boolean (value));
+      break;
+
     case PROP_COUNT:
       gtk_fishbowl_set_count (fishbowl, g_value_get_uint (value));
       break;
 
+    case PROP_UPDATE_DELAY:
+      gtk_fishbowl_set_update_delay (fishbowl, g_value_get_int64 (value));
+      break;
+
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
@@ -291,10 +278,22 @@ gtk_fishbowl_get_property (GObject         *object,
       g_value_set_boolean (value, gtk_fishbowl_get_animating (fishbowl));
       break;
 
+    case PROP_BENCHMARK:
+      g_value_set_boolean (value, gtk_fishbowl_get_benchmark (fishbowl));
+      break;
+
     case PROP_COUNT:
       g_value_set_uint (value, gtk_fishbowl_get_count (fishbowl));
       break;
 
+    case PROP_FRAMERATE:
+      g_value_set_double (value, gtk_fishbowl_get_framerate (fishbowl));
+      break;
+
+    case PROP_UPDATE_DELAY:
+      g_value_set_int64 (value, gtk_fishbowl_get_update_delay (fishbowl));
+      break;
+
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
@@ -306,7 +305,6 @@ gtk_fishbowl_class_init (GtkFishbowlClass *klass)
 {
   GObjectClass *object_class = G_OBJECT_CLASS (klass);
   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
-  GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
 
   object_class->dispose = gtk_fishbowl_dispose;
   object_class->set_property = gtk_fishbowl_set_property;
@@ -315,10 +313,6 @@ gtk_fishbowl_class_init (GtkFishbowlClass *klass)
   widget_class->measure = gtk_fishbowl_measure;
   widget_class->size_allocate = gtk_fishbowl_size_allocate;
 
-  container_class->add = gtk_fishbowl_add;
-  container_class->remove = gtk_fishbowl_remove;
-  container_class->forall = gtk_fishbowl_forall;
-
   props[PROP_ANIMATING] =
       g_param_spec_boolean ("animating",
                             "animating",
@@ -326,13 +320,36 @@ gtk_fishbowl_class_init (GtkFishbowlClass *klass)
                             FALSE,
                             G_PARAM_READWRITE);
 
+  props[PROP_BENCHMARK] =
+      g_param_spec_boolean ("benchmark",
+                            "Benchmark",
+                            "Adapt the count property to hit the maximum framerate",
+                            FALSE,
+                            G_PARAM_READWRITE);
+
   props[PROP_COUNT] =
       g_param_spec_uint ("count",
                          "Count",
                          "Number of widgets",
                          0, G_MAXUINT,
                          0,
-                         G_PARAM_READABLE);
+                         G_PARAM_READWRITE);
+
+  props[PROP_FRAMERATE] =
+      g_param_spec_double ("framerate",
+                           "Framerate",
+                           "Framerate of this widget in frames per second",
+                           0, G_MAXDOUBLE,
+                           0,
+                           G_PARAM_READABLE);
+
+  props[PROP_UPDATE_DELAY] =
+      g_param_spec_int64 ("update-delay",
+                          "Update delay",
+                          "Number of usecs between updates",
+                          0, G_MAXINT64,
+                          G_USEC_PER_SEC,
+                          G_PARAM_READWRITE);
 
   g_object_class_install_properties (object_class, NUM_PROPERTIES, props);
 }
@@ -345,96 +362,58 @@ gtk_fishbowl_get_count (GtkFishbowl *fishbowl)
   return priv->count;
 }
 
-char **icon_names = NULL;
-gsize n_icon_names = 0;
-
-static void
-init_icon_names (GtkIconTheme *theme)
-{
-  GPtrArray *icons;
-  GList *l, *icon_list;
-
-  if (icon_names)
-    return;
-
-  icon_list = gtk_icon_theme_list_icons (theme, NULL);
-  icons = g_ptr_array_new ();
-
-  for (l = icon_list; l; l = l->next)
-    {
-      if (g_str_has_suffix (l->data, "symbolic"))
-        continue;
-
-      g_ptr_array_add (icons, g_strdup (l->data));
-    }
-
-  n_icon_names = icons->len;
-  g_ptr_array_add (icons, NULL); /* NULL-terminate the array */
-  icon_names = (char **) g_ptr_array_free (icons, FALSE);
-
-  /* don't free strings, we assigned them to the array */
-  g_list_free_full (icon_list, g_free);
-}
-
-static const char *
-get_random_icon_name (GtkIconTheme *theme)
-{
-  init_icon_names (theme);
-
-  return icon_names[g_random_int_range(0, n_icon_names)];
-}
-
-static GType
-get_random_widget_type ()
-{
-  GType types[] = {
-    GTK_TYPE_SWITCH,
-    GTK_TYPE_BUTTON,
-    GTK_TYPE_ENTRY,
-    GTK_TYPE_SPIN_BUTTON,
-    GTK_TYPE_FONT_BUTTON,
-    GTK_TYPE_SCROLLBAR,
-    GTK_TYPE_SCALE,
-    GTK_TYPE_LEVEL_BAR,
-    GTK_TYPE_PROGRESS_BAR,
-    GTK_TYPE_RADIO_BUTTON,
-    GTK_TYPE_CHECK_BUTTON
-  };
-  return types[g_random_int_range (0, G_N_ELEMENTS (types))];
-}
-
 void
 gtk_fishbowl_set_count (GtkFishbowl *fishbowl,
                         guint        count)
 {
   GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
 
+  if (priv->count == count)
+    return;
+
   g_object_freeze_notify (G_OBJECT (fishbowl));
 
   while (priv->count > count)
     {
-      gtk_container_remove (GTK_CONTAINER (fishbowl),
-                            ((GtkFishbowlChild *) priv->children->data)->widget);
+      gtk_fishbowl_remove (fishbowl, gtk_widget_get_first_child (GTK_WIDGET (fishbowl)));
     }
 
   while (priv->count < count)
     {
       GtkWidget *new_widget;
 
-      if (priv->use_icons)
-        {
-          new_widget = gtk_image_new_from_icon_name (get_random_icon_name (gtk_icon_theme_get_default ()));
-          gtk_image_set_icon_size (GTK_IMAGE (new_widget), GTK_ICON_SIZE_LARGE);
-        }
-      else
-        new_widget = g_object_new (get_random_widget_type (), NULL);
+      new_widget = priv->creation_func ();
 
-      gtk_container_add (GTK_CONTAINER (fishbowl), new_widget);
+      gtk_fishbowl_add (fishbowl, new_widget);
     }
 
   g_object_thaw_notify (G_OBJECT (fishbowl));
 }
 
+gboolean
+gtk_fishbowl_get_benchmark (GtkFishbowl *fishbowl)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  return priv->benchmark;
+}
+
+void
+gtk_fishbowl_set_benchmark (GtkFishbowl *fishbowl,
+                            gboolean     benchmark)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  if (priv->benchmark == benchmark)
+    return;
+
+  priv->benchmark = benchmark;
+  if (!benchmark)
+    priv->last_benchmark_change = 0;
+
+  g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_BENCHMARK]);
+}
+
 gboolean
 gtk_fishbowl_get_animating (GtkFishbowl *fishbowl)
 {
@@ -443,6 +422,111 @@ gtk_fishbowl_get_animating (GtkFishbowl *fishbowl)
   return priv->tick_id != 0;
 }
 
+static gint64
+guess_refresh_interval (GdkFrameClock *frame_clock)
+{
+  gint64 interval;
+  gint64 i;
+
+  interval = G_MAXINT64;
+
+  for (i = gdk_frame_clock_get_history_start (frame_clock);
+       i < gdk_frame_clock_get_frame_counter (frame_clock);
+       i++)
+    {
+      GdkFrameTimings *t, *before;
+      gint64 ts, before_ts;
+
+      t = gdk_frame_clock_get_timings (frame_clock, i);
+      before = gdk_frame_clock_get_timings (frame_clock, i - 1);
+      if (t == NULL || before == NULL)
+        continue;
+
+      ts = gdk_frame_timings_get_frame_time (t);
+      before_ts = gdk_frame_timings_get_frame_time (before);
+      if (ts == 0 || before_ts == 0)
+        continue;
+
+      interval = MIN (interval, ts - before_ts);
+    }
+
+  if (interval == G_MAXINT64)
+    return 0;
+
+  return interval;
+}
+
+static void
+gtk_fishbowl_do_update (GtkFishbowl *fishbowl)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+  GdkFrameClock *frame_clock;
+  GdkFrameTimings *start, *end;
+  gint64 start_counter, end_counter;
+  gint64 n_frames, expected_frames;
+  gint64 start_timestamp, end_timestamp;
+  gint64 interval;
+
+  frame_clock = gtk_widget_get_frame_clock (GTK_WIDGET (fishbowl));
+  if (frame_clock == NULL)
+    return;
+
+  start_counter = gdk_frame_clock_get_history_start (frame_clock);
+  end_counter = gdk_frame_clock_get_frame_counter (frame_clock);
+  start = gdk_frame_clock_get_timings (frame_clock, start_counter);
+  for (end = gdk_frame_clock_get_timings (frame_clock, end_counter);
+       end_counter > start_counter && end != NULL && !gdk_frame_timings_get_complete (end);
+       end = gdk_frame_clock_get_timings (frame_clock, end_counter))
+    end_counter--;
+  if (end_counter - start_counter < 4)
+    return;
+
+  start_timestamp = gdk_frame_timings_get_presentation_time (start);
+  end_timestamp = gdk_frame_timings_get_presentation_time (end);
+  if (start_timestamp == 0 || end_timestamp == 0)
+    {
+      start_timestamp = gdk_frame_timings_get_frame_time (start);
+      end_timestamp = gdk_frame_timings_get_frame_time (end);
+    }
+
+  n_frames = end_counter - start_counter;
+  priv->framerate = ((double) n_frames) * G_USEC_PER_SEC / (end_timestamp - start_timestamp);
+  g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_FRAMERATE]);
+
+  if (!priv->benchmark)
+    return;
+
+  interval = gdk_frame_timings_get_refresh_interval (end);
+  if (interval == 0)
+    {
+      interval = guess_refresh_interval (frame_clock);
+      if (interval == 0)
+        return;
+    }
+  expected_frames = round ((double) (end_timestamp - start_timestamp) / interval);
+
+  if (n_frames >= expected_frames)
+    {
+      if (priv->last_benchmark_change > 0)
+        priv->last_benchmark_change *= 2;
+      else
+        priv->last_benchmark_change = 1;
+    }
+  else if (n_frames + 1 < expected_frames)
+    {
+      if (priv->last_benchmark_change < 0)
+        priv->last_benchmark_change--;
+      else
+        priv->last_benchmark_change = -1;
+    }
+  else
+    {
+      priv->last_benchmark_change = 0;
+    }
+
+  gtk_fishbowl_set_count (fishbowl, MAX (1, (int) priv->count + priv->last_benchmark_change));
+}
+
 static gboolean
 gtk_fishbowl_tick (GtkWidget     *widget,
                    GdkFrameClock *frame_clock,
@@ -453,9 +537,11 @@ gtk_fishbowl_tick (GtkWidget     *widget,
   GtkFishbowlChild *child;
   GList *l;
   gint64 frame_time, elapsed;
+  gboolean do_update;
 
   frame_time = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
   elapsed = frame_time - priv->last_frame_time;
+  do_update = frame_time / priv->update_delay != priv->last_frame_time / priv->update_delay;
   priv->last_frame_time = frame_time;
 
   /* last frame was 0, so we're just starting to animate */
@@ -494,6 +580,9 @@ gtk_fishbowl_tick (GtkWidget     *widget,
 
   gtk_widget_queue_allocate (widget);
 
+  if (do_update)
+    gtk_fishbowl_do_update (fishbowl);
+
   return G_SOURCE_CONTINUE;
 }
 
@@ -518,8 +607,57 @@ gtk_fishbowl_set_animating (GtkFishbowl *fishbowl,
       priv->last_frame_time = 0;
       gtk_widget_remove_tick_callback (GTK_WIDGET (fishbowl), priv->tick_id);
       priv->tick_id = 0;
+      priv->framerate = 0;
+      g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_FRAMERATE]);
     }
 
   g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_ANIMATING]);
 }
 
+double
+gtk_fishbowl_get_framerate (GtkFishbowl *fishbowl)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  return priv->framerate;
+}
+
+gint64
+gtk_fishbowl_get_update_delay (GtkFishbowl *fishbowl)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  return priv->update_delay;
+}
+
+void
+gtk_fishbowl_set_update_delay (GtkFishbowl *fishbowl,
+                               gint64       update_delay)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  if (priv->update_delay == update_delay)
+    return;
+
+  priv->update_delay = update_delay;
+
+  g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_UPDATE_DELAY]);
+}
+
+void
+gtk_fishbowl_set_creation_func (GtkFishbowl         *fishbowl,
+                                GtkFishCreationFunc  creation_func)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  g_object_freeze_notify (G_OBJECT (fishbowl));
+
+  gtk_fishbowl_set_count (fishbowl, 0);
+  priv->last_benchmark_change = 0;
+
+  priv->creation_func = creation_func;
+
+  gtk_fishbowl_set_count (fishbowl, 1);
+
+  g_object_thaw_notify (G_OBJECT (fishbowl));
+}

demos/gtk-demo/gtkfishbowl.h

@@ -32,29 +32,37 @@ G_BEGIN_DECLS
 typedef struct _GtkFishbowl              GtkFishbowl;
 typedef struct _GtkFishbowlClass         GtkFishbowlClass;
 
+typedef GtkWidget * (* GtkFishCreationFunc) (void);
+
 struct _GtkFishbowl
 {
-  GtkContainer container;
+  GtkWidget parent;
 };
 
 struct _GtkFishbowlClass
 {
-  GtkContainerClass parent_class;
+  GtkWidgetClass parent_class;
 };
 
 GType      gtk_fishbowl_get_type          (void) G_GNUC_CONST;
 
 GtkWidget* gtk_fishbowl_new               (void);
 
-void       gtk_fishbowl_set_use_icons     (GtkFishbowl       *fishbowl,
-                                           gboolean           use_icons);
-
 guint      gtk_fishbowl_get_count         (GtkFishbowl       *fishbowl);
 void       gtk_fishbowl_set_count         (GtkFishbowl       *fishbowl,
                                            guint              count);
 gboolean   gtk_fishbowl_get_animating     (GtkFishbowl       *fishbowl);
 void       gtk_fishbowl_set_animating     (GtkFishbowl       *fishbowl,
                                            gboolean           animating);
+gboolean   gtk_fishbowl_get_benchmark     (GtkFishbowl       *fishbowl);
+void       gtk_fishbowl_set_benchmark     (GtkFishbowl       *fishbowl,
+                                           gboolean           animating);
+double     gtk_fishbowl_get_framerate     (GtkFishbowl       *fishbowl);
+gint64     gtk_fishbowl_get_update_delay  (GtkFishbowl       *fishbowl);
+void       gtk_fishbowl_set_update_delay  (GtkFishbowl       *fishbowl,
+                                           gint64             update_delay);
+void       gtk_fishbowl_set_creation_func (GtkFishbowl       *fishbowl,
+                                           GtkFishCreationFunc creation_func);
 
 G_END_DECLS
 

demos/gtk-demo/hypertext.c

@@ -105,14 +105,14 @@ follow_if_link (GtkWidget   *text_view,
 /* Links can be activated by pressing Enter.
  */
 static gboolean
-key_press_event (GtkWidget *text_view,
-                 GdkEventKey *event)
+key_pressed (GtkEventController *controller,
+             guint               keyval,
+             guint               keycode,
+             GdkModifierType     modifiers,
+             GtkWidget          *text_view)
 {
   GtkTextIter iter;
   GtkTextBuffer *buffer;
-  guint keyval;
-
-  gdk_event_get_keyval ((GdkEvent *)event, &keyval);
 
   switch (keyval)
     {
@@ -128,62 +128,49 @@ key_press_event (GtkWidget *text_view,
         break;
     }
 
-  return FALSE;
+  return GDK_EVENT_PROPAGATE;
 }
 
 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_cb (GtkWidget *text_view,
-          GdkEvent  *ev)
+static void
+released_cb (GtkGestureMultiPress *gesture,
+             guint                 n_press,
+             gdouble               x,
+             gdouble               y,
+             GtkWidget            *text_view)
 {
   GtkTextIter start, end, iter;
   GtkTextBuffer *buffer;
-  gdouble ex, ey;
-  int x, y;
-  GdkEventType type;
+  int tx, ty;
 
-  type = gdk_event_get_event_type (ev);
+  if (gtk_gesture_single_get_button (GTK_GESTURE_SINGLE (gesture)) > 1)
+    return;
 
-  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;
-
-      gdk_event_get_button (ev, &button);
-      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;
+                                         x, y, &tx, &ty);
 
   buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view));
 
   /* we shouldn't follow a link if the user has selected something */
   gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
   if (gtk_text_iter_get_offset (&start) != gtk_text_iter_get_offset (&end))
-    return FALSE;
+    return;
 
   if (gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (text_view), &iter, x, y))
     follow_if_link (text_view, &iter);
+}
 
-  return TRUE;
+static void
+motion_cb (GtkEventControllerMotion *controller,
+           gdouble                   x,
+           gdouble                   y,
+           GtkTextView              *text_view)
+{
+  set_cursor_if_appropriate (text_view, x, y);
 }
 
 static gboolean hovering_over_link = FALSE;
@@ -241,6 +228,7 @@ do_hypertext (GtkWidget *do_widget)
       GtkWidget *view;
       GtkWidget *sw;
       GtkTextBuffer *buffer;
+      GtkEventController *controller;
 
       window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
       gtk_window_set_title (GTK_WINDOW (window), "Hypertext");
@@ -255,10 +243,19 @@ do_hypertext (GtkWidget *do_widget)
       gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (view), GTK_WRAP_WORD);
       gtk_text_view_set_left_margin (GTK_TEXT_VIEW (view), 20);
       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",
-                        G_CALLBACK (event_cb), NULL);
+      controller = gtk_event_controller_key_new ();
+      g_signal_connect (controller, "key-pressed", G_CALLBACK (key_pressed), view);
+      gtk_widget_add_controller (view, controller);
+
+      controller = GTK_EVENT_CONTROLLER (gtk_gesture_multi_press_new ());
+      g_signal_connect (controller, "released",
+                        G_CALLBACK (released_cb), view);
+      gtk_widget_add_controller (view, controller);
+
+      controller = gtk_event_controller_motion_new ();
+      g_signal_connect (controller, "motion",
+                        G_CALLBACK (motion_cb), view);
+      gtk_widget_add_controller (view, controller);
 
       buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 

demos/gtk-demo/iconview.c

@@ -266,7 +266,7 @@ do_iconview (GtkWidget *do_widget)
       gtk_container_add (GTK_CONTAINER (window), vbox);
 
       tool_bar = gtk_toolbar_new ();
-      gtk_box_pack_start (GTK_BOX (vbox), tool_bar);
+      gtk_container_add (GTK_CONTAINER (vbox), tool_bar);
 
       up_button = gtk_tool_button_new (NULL, NULL);
       gtk_tool_button_set_label (GTK_TOOL_BUTTON (up_button), _("_Up"));
@@ -292,7 +292,7 @@ do_iconview (GtkWidget *do_widget)
                                       GTK_POLICY_AUTOMATIC);
       gtk_widget_set_vexpand (sw, TRUE);
 
-      gtk_box_pack_start (GTK_BOX (vbox), sw);
+      gtk_container_add (GTK_CONTAINER (vbox), sw);
 
       /* Create the store and fill it with the contents of '/' */
       parent = g_strdup ("/");

demos/gtk-demo/images.c

@@ -1,15 +1,15 @@
 /* Images
  *
- * GtkImage is used to display an image; the image can be in a number of formats.
- * Typically, you load an image into a GdkPixbuf, then display the pixbuf.
+ * GtkImage and GtkPicture are used to display an image; the image can be
+ * in a number of formats.
+ *
+ * GtkImage is the widget used to display icons or images that should be
+ * sized and styled like an icon, while GtkPicture is used for images
+ * that should be displayed as-is.
  *
  * This demo code shows some of the more obscure cases, in the simple
- * case a call to gtk_image_new_from_file() is all you need.
- *
- * If you want to put image data in your program as a C variable,
- * use the make-inline-pixbuf program that comes with GTK+.
- * This way you won't need to depend on loading external files, your
- * application binary can be self-contained.
+ * case a call to gtk_picture_new_for_file() or
+ * gtk_image_new_from_icon_name() is all you need.
  */
 
 #include <gtk/gtk.h>
@@ -27,9 +27,9 @@ progressive_prepared_callback (GdkPixbufLoader *loader,
                                gpointer         data)
 {
   GdkPixbuf *pixbuf;
-  GtkWidget *image;
+  GtkWidget *picture;
 
-  image = GTK_WIDGET (data);
+  picture = GTK_WIDGET (data);
 
   pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
 
@@ -38,7 +38,7 @@ progressive_prepared_callback (GdkPixbufLoader *loader,
    */
   gdk_pixbuf_fill (pixbuf, 0xaaaaaaff);
 
-  gtk_image_set_from_pixbuf (GTK_IMAGE (image), pixbuf);
+  gtk_picture_set_pixbuf (GTK_PICTURE (picture), pixbuf);
 }
 
 static void
@@ -49,21 +49,21 @@ progressive_updated_callback (GdkPixbufLoader *loader,
                               gint                 height,
                               gpointer     data)
 {
-  GtkWidget *image;
+  GtkWidget *picture;
   GdkPixbuf *pixbuf;
 
-  image = GTK_WIDGET (data);
+  picture = GTK_WIDGET (data);
 
   pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
-  gtk_image_set_from_pixbuf (GTK_IMAGE (image), pixbuf);
+  gtk_picture_set_pixbuf (GTK_PICTURE (picture), pixbuf);
 }
 
 static gint
 progressive_timeout (gpointer data)
 {
-  GtkWidget *image;
+  GtkWidget *picture;
 
-  image = GTK_WIDGET (data);
+  picture = GTK_WIDGET (data);
 
   /* This shows off fully-paranoid error handling, so looks scary.
    * You could factor out the error handling code into a nice separate
@@ -241,10 +241,10 @@ progressive_timeout (gpointer data)
       pixbuf_loader = gdk_pixbuf_loader_new ();
 
       g_signal_connect (pixbuf_loader, "area-prepared",
-                        G_CALLBACK (progressive_prepared_callback), image);
+                        G_CALLBACK (progressive_prepared_callback), picture);
 
       g_signal_connect (pixbuf_loader, "area-updated",
-                        G_CALLBACK (progressive_updated_callback), image);
+                        G_CALLBACK (progressive_updated_callback), picture);
     }
 
   /* leave timeout installed */
@@ -252,7 +252,7 @@ progressive_timeout (gpointer data)
 }
 
 static void
-start_progressive_loading (GtkWidget *image)
+start_progressive_loading (GtkWidget *picture)
 {
   /* This is obviously totally contrived (we slow down loading
    * on purpose to show how incremental loading works).
@@ -261,8 +261,8 @@ start_progressive_loading (GtkWidget *image)
    * The timeout simply simulates a slow data source by inserting
    * pauses in the reading process.
    */
-  load_timeout = g_timeout_add (150, progressive_timeout, image);
-  g_source_set_name_by_id (load_timeout, "[gtk+] progressive_timeout");
+  load_timeout = g_timeout_add (150, progressive_timeout, picture);
+  g_source_set_name_by_id (load_timeout, "[gtk] progressive_timeout");
 }
 
 static void
@@ -323,8 +323,10 @@ do_images (GtkWidget *do_widget)
   GtkWidget *hbox;
   GtkWidget *base_vbox;
   GtkWidget *image;
+  GtkWidget *picture;
   GtkWidget *label;
   GtkWidget *button;
+  GdkPaintable *paintable;
   GIcon *gicon;
 
   if (!window)
@@ -352,13 +354,13 @@ do_images (GtkWidget *do_widget)
       label = gtk_label_new (NULL);
       gtk_label_set_markup (GTK_LABEL (label),
                             "<u>Image loaded from a file</u>");
-      gtk_box_pack_start (GTK_BOX (vbox), label);
+      gtk_container_add (GTK_CONTAINER (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);
+      gtk_container_add (GTK_CONTAINER (vbox), frame);
 
       image = gtk_image_new_from_icon_name ("gtk3-demo");
       gtk_image_set_icon_size (GTK_IMAGE (image), GTK_ICON_SIZE_LARGE);
@@ -371,30 +373,30 @@ do_images (GtkWidget *do_widget)
       label = gtk_label_new (NULL);
       gtk_label_set_markup (GTK_LABEL (label),
                             "<u>Animation loaded from a file</u>");
-      gtk_box_pack_start (GTK_BOX (vbox), label);
+      gtk_container_add (GTK_CONTAINER (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);
+      gtk_container_add (GTK_CONTAINER (vbox), frame);
 
-      image = gtk_image_new_from_resource ("/images/floppybuddy.gif");
+      picture = gtk_picture_new_for_resource ("/images/floppybuddy.gif");
 
-      gtk_container_add (GTK_CONTAINER (frame), image);
+      gtk_container_add (GTK_CONTAINER (frame), picture);
 
       /* Symbolic icon */
 
       label = gtk_label_new (NULL);
       gtk_label_set_markup (GTK_LABEL (label),
                             "<u>Symbolic themed icon</u>");
-      gtk_box_pack_start (GTK_BOX (vbox), label);
+      gtk_container_add (GTK_CONTAINER (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);
+      gtk_container_add (GTK_CONTAINER (vbox), frame);
 
       gicon = g_themed_icon_new_with_default_fallbacks ("battery-caution-charging-symbolic");
       image = gtk_image_new_from_gicon (gicon);
@@ -410,21 +412,21 @@ do_images (GtkWidget *do_widget)
       label = gtk_label_new (NULL);
       gtk_label_set_markup (GTK_LABEL (label),
                             "<u>Progressive image loading</u>");
-      gtk_box_pack_start (GTK_BOX (vbox), label);
+      gtk_container_add (GTK_CONTAINER (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);
+      gtk_container_add (GTK_CONTAINER (vbox), frame);
 
       /* Create an empty image for now; the progressive loader
        * will create the pixbuf and fill it in.
        */
-      image = gtk_image_new_from_pixbuf (NULL);
-      gtk_container_add (GTK_CONTAINER (frame), image);
+      picture = gtk_picture_new ();
+      gtk_container_add (GTK_CONTAINER (frame), picture);
 
-      start_progressive_loading (image);
+      start_progressive_loading (picture);
 
       /* Video */
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
@@ -433,21 +435,36 @@ do_images (GtkWidget *do_widget)
       label = gtk_label_new (NULL);
       gtk_label_set_markup (GTK_LABEL (label),
                             "<u>Displaying video</u>");
-      gtk_box_pack_start (GTK_BOX (vbox), label);
+      gtk_container_add (GTK_CONTAINER (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);
+      gtk_container_add (GTK_CONTAINER (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);
 
+      /* Widget paintables */
+      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>GtkWidgetPaintable</u>");
+      gtk_container_add (GTK_CONTAINER (vbox), label);
+
+      paintable = gtk_widget_paintable_new (do_widget);
+      picture = gtk_picture_new_for_paintable (paintable);
+      gtk_widget_set_size_request (picture, 100, 100);
+      gtk_widget_set_valign (picture, GTK_ALIGN_START);
+      gtk_container_add (GTK_CONTAINER (vbox), picture);
+
       /* Sensitivity control */
       button = gtk_toggle_button_new_with_mnemonic ("_Insensitive");
-      gtk_box_pack_start (GTK_BOX (base_vbox), button);
+      gtk_container_add (GTK_CONTAINER (base_vbox), button);
 
       g_signal_connect (button, "toggled",
                         G_CALLBACK (toggle_sensitivity_callback),

demos/gtk-demo/infobar.c

@@ -65,24 +65,24 @@ do_infobar (GtkWidget *do_widget)
       gtk_container_add (GTK_CONTAINER (window), vbox);
 
       bar = gtk_info_bar_new ();
-      gtk_box_pack_start (GTK_BOX (vbox), bar);
+      gtk_container_add (GTK_CONTAINER (vbox), bar);
       gtk_info_bar_set_message_type (GTK_INFO_BAR (bar), GTK_MESSAGE_INFO);
       label = gtk_label_new ("This is an info bar with message type GTK_MESSAGE_INFO");
       gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
       gtk_label_set_xalign (GTK_LABEL (label), 0);
-      gtk_box_pack_start (GTK_BOX (gtk_info_bar_get_content_area (GTK_INFO_BAR (bar))), label);
+      gtk_container_add (GTK_CONTAINER (gtk_info_bar_get_content_area (GTK_INFO_BAR (bar))), label);
 
       button = gtk_toggle_button_new_with_label ("Message");
       g_object_bind_property (bar, "revealed", button, "active", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
       gtk_container_add (GTK_CONTAINER (actions), button);
 
       bar = gtk_info_bar_new ();
-      gtk_box_pack_start (GTK_BOX (vbox), bar);
+      gtk_container_add (GTK_CONTAINER (vbox), bar);
       gtk_info_bar_set_message_type (GTK_INFO_BAR (bar), GTK_MESSAGE_WARNING);
       label = gtk_label_new ("This is an info bar with message type GTK_MESSAGE_WARNING");
       gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
       gtk_label_set_xalign (GTK_LABEL (label), 0);
-      gtk_box_pack_start (GTK_BOX (gtk_info_bar_get_content_area (GTK_INFO_BAR (bar))), label);
+      gtk_container_add (GTK_CONTAINER (gtk_info_bar_get_content_area (GTK_INFO_BAR (bar))), label);
 
       button = gtk_toggle_button_new_with_label ("Warning");
       g_object_bind_property (bar, "revealed", button, "active", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
@@ -91,24 +91,24 @@ do_infobar (GtkWidget *do_widget)
       bar = gtk_info_bar_new_with_buttons (_("_OK"), GTK_RESPONSE_OK, NULL);
       gtk_info_bar_set_show_close_button (GTK_INFO_BAR (bar), TRUE);
       g_signal_connect (bar, "response", G_CALLBACK (on_bar_response), window);
-      gtk_box_pack_start (GTK_BOX (vbox), bar);
+      gtk_container_add (GTK_CONTAINER (vbox), bar);
       gtk_info_bar_set_message_type (GTK_INFO_BAR (bar), GTK_MESSAGE_QUESTION);
       label = gtk_label_new ("This is an info bar with message type GTK_MESSAGE_QUESTION");
       gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
       gtk_label_set_xalign (GTK_LABEL (label), 0);
-      gtk_box_pack_start (GTK_BOX (gtk_info_bar_get_content_area (GTK_INFO_BAR (bar))), label);
+      gtk_container_add (GTK_CONTAINER (gtk_info_bar_get_content_area (GTK_INFO_BAR (bar))), label);
 
       button = gtk_toggle_button_new_with_label ("Question");
       g_object_bind_property (bar, "revealed", button, "active", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
       gtk_container_add (GTK_CONTAINER (actions), button);
 
       bar = gtk_info_bar_new ();
-      gtk_box_pack_start (GTK_BOX (vbox), bar);
+      gtk_container_add (GTK_CONTAINER (vbox), bar);
       gtk_info_bar_set_message_type (GTK_INFO_BAR (bar), GTK_MESSAGE_ERROR);
       label = gtk_label_new ("This is an info bar with message type GTK_MESSAGE_ERROR");
       gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
       gtk_label_set_xalign (GTK_LABEL (label), 0);
-      gtk_box_pack_start (GTK_BOX (gtk_info_bar_get_content_area (GTK_INFO_BAR (bar))), label);
+      gtk_container_add (GTK_CONTAINER (gtk_info_bar_get_content_area (GTK_INFO_BAR (bar))), label);
 
       button = gtk_toggle_button_new_with_label ("Error");
       g_object_bind_property (bar, "revealed", button, "active", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
@@ -116,12 +116,12 @@ do_infobar (GtkWidget *do_widget)
       gtk_container_add (GTK_CONTAINER (actions), button);
 
       bar = gtk_info_bar_new ();
-      gtk_box_pack_start (GTK_BOX (vbox), bar);
+      gtk_container_add (GTK_CONTAINER (vbox), bar);
       gtk_info_bar_set_message_type (GTK_INFO_BAR (bar), GTK_MESSAGE_OTHER);
       label = gtk_label_new ("This is an info bar with message type GTK_MESSAGE_OTHER");
       gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
       gtk_label_set_xalign (GTK_LABEL (label), 0);
-      gtk_box_pack_start (GTK_BOX (gtk_info_bar_get_content_area (GTK_INFO_BAR (bar))), label);
+      gtk_container_add (GTK_CONTAINER (gtk_info_bar_get_content_area (GTK_INFO_BAR (bar))), label);
 
       button = gtk_toggle_button_new_with_label ("Other");
       g_object_bind_property (bar, "revealed", button, "active", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
@@ -130,7 +130,7 @@ do_infobar (GtkWidget *do_widget)
       frame = gtk_frame_new ("Info bars");
       gtk_widget_set_margin_top (frame, 8);
       gtk_widget_set_margin_bottom (frame, 8);
-      gtk_box_pack_start (GTK_BOX (vbox), frame);
+      gtk_container_add (GTK_CONTAINER (vbox), frame);
 
       vbox2 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
       g_object_set (vbox2, "margin", 8, NULL);
@@ -138,9 +138,9 @@ do_infobar (GtkWidget *do_widget)
 
       /* Standard message dialog */
       label = gtk_label_new ("An example of different info bars");
-      gtk_box_pack_start (GTK_BOX (vbox2), label);
+      gtk_container_add (GTK_CONTAINER (vbox2), label);
 
-      gtk_box_pack_start (GTK_BOX (vbox2), actions);
+      gtk_container_add (GTK_CONTAINER (vbox2), actions);
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/language-names.c

@@ -2,12 +2,13 @@
 
 #include <stdlib.h>
 #include <stdio.h>
+
+#ifdef HAVE_UNISTD_H
 #include <unistd.h>
+#endif
 #include <string.h>
 #include <errno.h>
-#include <dirent.h>
 #include <locale.h>
-#include <langinfo.h>
 #include <sys/stat.h>
 
 #include <glib.h>
@@ -173,9 +174,9 @@ languages_variant_init (const char *variant)
 {
   gboolean res;
   gsize    buf_len;
-  g_autofree char *buf = NULL;
-  g_autofree char *filename = NULL;
-  g_autoptr (GError) error = NULL;
+  char *buf = NULL;
+  char *filename = NULL;
+  GError *error = NULL;
 
   bindtextdomain (variant, ISO_CODES_LOCALESDIR);
   bind_textdomain_codeset (variant, "UTF-8");
@@ -185,19 +186,25 @@ languages_variant_init (const char *variant)
   res = g_file_get_contents (filename, &buf, &buf_len, &error);
   if (res)
     {
-      g_autoptr (GMarkupParseContext) ctx = NULL;
+      GMarkupParseContext *ctx = NULL;
       GMarkupParser parser = { languages_parse_start_tag, NULL, NULL, NULL, NULL };
 
       ctx = g_markup_parse_context_new (&parser, 0, NULL, NULL);
 
+      g_free (error);
       error = NULL;
       res = g_markup_parse_context_parse (ctx, buf, buf_len, &error);
+      g_free (ctx);
 
       if (!res)
         g_warning ("Failed to parse '%s': %s\n", filename, error->message);
     }
   else
     g_warning ("Failed to load '%s': %s\n", filename, error->message);
+
+  g_free (error);
+  g_free (filename);
+  g_free (buf);
 }
 
 static void

demos/gtk-demo/list_store.c

@@ -268,7 +268,7 @@ do_list_store (GtkWidget *do_widget)
       gtk_container_add (GTK_CONTAINER (window), vbox);
 
       label = gtk_label_new ("This is the bug list (note: not based on real data, it would be nice to have a nice ODBC interface to bugzilla or so, though).");
-      gtk_box_pack_start (GTK_BOX (vbox), label);
+      gtk_container_add (GTK_CONTAINER (vbox), label);
 
       sw = gtk_scrolled_window_new (NULL, NULL);
       gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw),
@@ -276,7 +276,7 @@ do_list_store (GtkWidget *do_widget)
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                       GTK_POLICY_NEVER,
                                       GTK_POLICY_AUTOMATIC);
-      gtk_box_pack_start (GTK_BOX (vbox), sw);
+      gtk_container_add (GTK_CONTAINER (vbox), sw);
 
       /* create tree model */
       model = create_model ();

demos/gtk-demo/listbox.c

@@ -361,12 +361,12 @@ do_listbox (GtkWidget *do_widget)
 
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
       gtk_container_add (GTK_CONTAINER (window), vbox);
-      label = gtk_label_new ("Messages from Gtk+ and friends");
-      gtk_box_pack_start (GTK_BOX (vbox), label);
+      label = gtk_label_new ("Messages from GTK and friends");
+      gtk_container_add (GTK_CONTAINER (vbox), label);
       scrolled = gtk_scrolled_window_new (NULL, NULL);
       gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
       gtk_widget_set_vexpand (scrolled, TRUE);
-      gtk_box_pack_start (GTK_BOX (vbox), scrolled);
+      gtk_container_add (GTK_CONTAINER (vbox), scrolled);
       listbox = gtk_list_box_new ();
       gtk_container_add (GTK_CONTAINER (scrolled), listbox);
 

demos/gtk-demo/listbox.ui

@@ -1,7 +1,4 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <interface domain="gtk40">
-  <!-- interface-requires gtk+ 3.10 -->
-  <!-- interface-requires gtkdemo 3.10 -->
   <object class="GtkMenu" id="menu1">
     <child>
       <object class="GtkMenuItem" id="menuitem1">
@@ -53,7 +50,7 @@
                     <property name="valign">baseline</property>
                     <property name="label" translatable="0">Username</property>
                     <attributes>
-                      <attribute name="weight" value="bold"/>
+                      <attribute name="weight" value="bold"></attribute>
                     </attributes>
                   </object>
                 </child>
@@ -67,9 +64,6 @@
                   <class name="dim-label"/>
                 </style>
               </object>
-              <packing>
-                <property name="position">1</property>
-              </packing>
             </child>
             <child>
               <object class="GtkLabel" id="short_time_label">
@@ -79,10 +73,6 @@
                   <class name="dim-label"/>
                 </style>
               </object>
-              <packing>
-                <property name="pack-type">end</property>
-                <property name="position">2</property>
-              </packing>
             </child>
           </object>
           <packing>
@@ -118,9 +108,6 @@
               <object class="GtkLabel" id="label4">
                 <property name="label" translatable="yes">Resent by</property>
               </object>
-              <packing>
-                <property name="position">1</property>
-              </packing>
             </child>
             <child>
               <object class="GtkLinkButton" id="resent_by_button">
@@ -130,9 +117,6 @@
                 <property name="relief">none</property>
                 <property name="uri">http://www.gtk.org</property>
               </object>
-              <packing>
-                <property name="position">2</property>
-              </packing>
             </child>
           </object>
           <packing>
@@ -154,6 +138,7 @@
             </child>
             <child>
               <object class="GtkBox" id="extra_buttons_box">
+                <property name="visible">0</property>
                 <property name="spacing">6</property>
                 <child>
                   <object class="GtkButton" id="reply-button">
@@ -171,9 +156,6 @@
                     <property name="relief">none</property>
                     <signal name="clicked" handler="reshare_clicked" swapped="yes"/>
                   </object>
-                  <packing>
-                    <property name="position">1</property>
-                  </packing>
                 </child>
                 <child>
                   <object class="GtkButton" id="favorite-buttton">
@@ -183,9 +165,6 @@
                     <property name="relief">none</property>
                     <signal name="clicked" handler="favorite_clicked" swapped="yes"/>
                   </object>
-                  <packing>
-                    <property name="position">2</property>
-                  </packing>
                 </child>
                 <child>
                   <object class="GtkMenuButton" id="more-button">
@@ -199,14 +178,8 @@
                       </object>
                     </child>
                   </object>
-                  <packing>
-                    <property name="position">3</property>
-                  </packing>
                 </child>
               </object>
-              <packing>
-                <property name="position">1</property>
-              </packing>
             </child>
           </object>
           <packing>
@@ -249,14 +222,8 @@ FAVORITES</property>
                         </child>
                         <child type="label_item"/>
                       </object>
-                      <packing>
-                        <property name="position">1</property>
-                      </packing>
                     </child>
                   </object>
-                  <packing>
-                    <property name="position">1</property>
-                  </packing>
                 </child>
                 <child>
                   <object class="GtkBox" id="box6">
@@ -278,14 +245,8 @@ FAVORITES</property>
                           <class name="dim-label"/>
                         </style>
                       </object>
-                      <packing>
-                        <property name="position">1</property>
-                      </packing>
                     </child>
                   </object>
-                  <packing>
-                    <property name="position">2</property>
-                  </packing>
                 </child>
               </object>
             </child>

demos/gtk-demo/main.c

@@ -42,24 +42,24 @@ activate_about (GSimpleAction *action,
 {
   GtkApplication *app = user_data;
   const gchar *authors[] = {
-    "The GTK+ Team",
+    "The GTK Team",
     NULL
   };
 
   gtk_show_about_dialog (GTK_WINDOW (gtk_application_get_active_window (app)),
-                         "program-name", "GTK+ Demo",
-                         "version", g_strdup_printf ("%s,\nRunning against GTK+ %d.%d.%d",
+                         "program-name", "GTK Demo",
+                         "version", g_strdup_printf ("%s,\nRunning against GTK %d.%d.%d",
                                                      PACKAGE_VERSION,
                                                      gtk_get_major_version (),
                                                      gtk_get_minor_version (),
                                                      gtk_get_micro_version ()),
-                         "copyright", "(C) 1997-2013 The GTK+ Team",
+                         "copyright", "(C) 1997-2013 The GTK Team",
                          "license-type", GTK_LICENSE_LGPL_2_1,
                          "website", "http://www.gtk.org",
-                         "comments", "Program to demonstrate GTK+ widgets",
+                         "comments", "Program to demonstrate GTK widgets",
                          "authors", authors,
-                         "logo-icon-name", "gtk3-demo",
-                         "title", "About GTK+ Demo",
+                         "logo-icon-name", "org.gtk.Demo",
+                         "title", "About GTK Demo",
                          NULL);
 }
 
@@ -532,7 +532,106 @@ fontify (GtkTextBuffer *source_buffer)
     }
 }
 
-static GtkWidget *create_text (GtkWidget **text_view, gboolean is_source);
+static GtkWidget *
+display_image (const char *resource)
+{
+  GtkWidget *sw, *image;
+
+  image = gtk_image_new_from_resource (resource);
+  gtk_widget_set_halign (image, GTK_ALIGN_CENTER);
+  gtk_widget_set_valign (image, GTK_ALIGN_CENTER);
+  sw = gtk_scrolled_window_new (NULL, NULL);
+  gtk_container_add (GTK_CONTAINER (sw), image);
+
+  return sw;
+}
+
+static GtkWidget *
+display_text (const char *resource)
+{
+  GtkTextBuffer *buffer;
+  GtkWidget *textview, *sw;
+  GBytes *bytes;
+
+  bytes = g_resources_lookup_data (resource, 0, NULL);
+  g_assert (bytes);
+
+  g_assert (g_utf8_validate (g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes), NULL));
+
+  textview = gtk_text_view_new ();
+  g_object_set (textview,
+                "left-margin", 20,
+                "right-margin", 20,
+                "top-margin", 20,
+                "bottom-margin", 20,
+                NULL);
+  gtk_text_view_set_editable (GTK_TEXT_VIEW (textview), FALSE);
+  gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (textview), FALSE);
+  /* Make it a bit nicer for text. */
+  gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (textview), GTK_WRAP_WORD);
+  gtk_text_view_set_pixels_above_lines (GTK_TEXT_VIEW (textview), 2);
+  gtk_text_view_set_pixels_below_lines (GTK_TEXT_VIEW (textview), 2);
+
+  buffer = gtk_text_buffer_new (NULL);
+  gtk_text_buffer_set_text (buffer, g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes));
+  if (g_str_has_suffix (resource, ".c"))
+    fontify (buffer);
+  gtk_text_view_set_buffer (GTK_TEXT_VIEW (textview), buffer);
+
+  g_bytes_unref (bytes);
+
+  sw = gtk_scrolled_window_new (NULL, NULL);
+  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
+                                  GTK_POLICY_AUTOMATIC,
+                                  GTK_POLICY_AUTOMATIC);
+  gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw),
+                                       GTK_SHADOW_NONE);
+  gtk_container_add (GTK_CONTAINER (sw), textview);
+
+  return sw;
+}
+
+static GtkWidget *
+display_video (const char *resource)
+{
+  GtkWidget *video;
+
+  video = gtk_video_new_for_resource (resource);
+  gtk_video_set_loop (GTK_VIDEO (video), TRUE);
+
+  return video;
+}
+
+static GtkWidget *
+display_nothing (const char *resource)
+{
+  GtkWidget *widget;
+  char *str;
+
+  str = g_strdup_printf ("The lazy GTK developers forgot to add a way to display the resource '%s'", resource);
+  widget = gtk_label_new (str);
+  gtk_label_set_line_wrap (GTK_LABEL (widget), TRUE);
+
+  g_free (str);
+
+  return widget;
+}
+
+static struct {
+  const char *extension;
+  GtkWidget * (* display_func) (const char *resource);
+} display_funcs[] = {
+  { ".gif", display_image },
+  { ".jpg", display_image },
+  { ".png", display_image },
+  { ".c", display_text },
+  { ".css", display_text },
+  { ".glsl", display_text },
+  { ".h", display_text },
+  { ".txt", display_text },
+  { ".ui", display_text },
+  { ".webm", display_video }
+};
 
 static void
 add_data_tab (const gchar *demoname)
@@ -540,7 +639,7 @@ add_data_tab (const gchar *demoname)
   gchar *resource_dir, *resource_name;
   gchar **resources;
   GtkWidget *widget, *label;
-  guint i;
+  guint i, j;
 
   resource_dir = g_strconcat ("/", demoname, NULL);
   resources = g_resources_enumerate_children (resource_dir, 0, NULL);
@@ -554,60 +653,23 @@ 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_paintable (GTK_IMAGE (widget)) == NULL)
+      for (j = 0; j < G_N_ELEMENTS(display_funcs); j++)
         {
-          GBytes *bytes;
-
-          /* So we've used the best API available to figure out it's
-           * not an image. Let's try something else then.
-           */
-          g_object_ref_sink (widget);
-          g_object_unref (widget);
-
-          bytes = g_resources_lookup_data (resource_name, 0, NULL);
-          g_assert (bytes);
-
-          if (g_utf8_validate (g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes), NULL))
-            {
-              /* Looks like it parses as text. Dump it into a textview then! */
-              GtkTextBuffer *buffer;
-              GtkWidget *textview;
-
-              widget = create_text (&textview, FALSE);
-              buffer = gtk_text_buffer_new (NULL);
-              gtk_text_buffer_set_text (buffer, g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes));
-              if (g_str_has_suffix (resource_name, ".c"))
-                fontify (buffer);
-              gtk_text_view_set_buffer (GTK_TEXT_VIEW (textview), buffer);
-            }
-          else
-            {
-              g_warning ("Don't know how to display resource '%s'", resource_name);
-              widget = NULL;
-            }
-
-          g_bytes_unref (bytes);
+          if (g_str_has_suffix (resource_name, display_funcs[j].extension))
+            break;
         }
 
-      if (GTK_IS_IMAGE (widget))
-        {
-          GtkWidget *sw;
-
-          gtk_widget_set_halign (widget, GTK_ALIGN_CENTER);
-          gtk_widget_set_valign (widget, GTK_ALIGN_CENTER);
-          sw = gtk_scrolled_window_new (NULL, NULL);
-          gtk_container_add (GTK_CONTAINER (sw), widget);
-          widget = sw;
-        }
+      if (j < G_N_ELEMENTS(display_funcs))
+        widget = display_funcs[j].display_func (resource_name);
+      else
+        widget = display_nothing (resource_name);
 
       label = gtk_label_new (resources[i]);
       gtk_widget_show (label);
       gtk_notebook_append_page (GTK_NOTEBOOK (notebook), widget, label);
-      gtk_container_child_set (GTK_CONTAINER (notebook),
-                               GTK_WIDGET (widget),
-                               "tab-expand", TRUE,
-                               NULL);
+      g_object_set (gtk_notebook_get_page (GTK_NOTEBOOK (notebook), widget),
+                    "tab-expand", TRUE,
+                    NULL);
 
       g_free (resource_name);
     }
@@ -768,15 +830,14 @@ load_file (const gchar *demoname,
           /* Skipping blank lines */
           while (g_ascii_isspace (*p))
             p++;
-          if (*p)
-            {
-              p = lines[i];
-              state++;
-              /* Fall through */
-            }
-          else
+
+          if (!*p)
             break;
 
+          p = lines[i];
+          state++;
+          /* Fall through */
+
         case 3:
           /* Reading program body */
           gtk_text_buffer_insert (source_buffer, &start, p, -1);
@@ -825,49 +886,6 @@ selection_cb (GtkTreeSelection *selection,
   g_free (filename);
 }
 
-static GtkWidget *
-create_text (GtkWidget **view,
-             gboolean    is_source)
-{
-  GtkWidget *scrolled_window;
-  GtkWidget *text_view;
-
-  scrolled_window = gtk_scrolled_window_new (NULL, NULL);
-  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
-                                  GTK_POLICY_AUTOMATIC,
-                                  GTK_POLICY_AUTOMATIC);
-  gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window),
-                                       GTK_SHADOW_NONE);
-
-  *view = text_view = gtk_text_view_new ();
-  g_object_set (text_view,
-                "left-margin", 20,
-                "right-margin", 20,
-                "top-margin", 20,
-                "bottom-margin", 20,
-                NULL);
-
-  gtk_text_view_set_editable (GTK_TEXT_VIEW (text_view), FALSE);
-  gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (text_view), FALSE);
-
-  gtk_container_add (GTK_CONTAINER (scrolled_window), text_view);
-
-  if (is_source)
-    {
-      gtk_text_view_set_monospace (GTK_TEXT_VIEW (text_view), TRUE);
-      gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text_view), GTK_WRAP_NONE);
-    }
-  else
-    {
-      /* Make it a bit nicer for text. */
-      gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text_view), GTK_WRAP_WORD);
-      gtk_text_view_set_pixels_above_lines (GTK_TEXT_VIEW (text_view), 2);
-      gtk_text_view_set_pixels_below_lines (GTK_TEXT_VIEW (text_view), 2);
-    }
-
-  return scrolled_window;
-}
-
 static void
 populate_model (GtkTreeModel *model)
 {

demos/gtk-demo/main.ui

@@ -1,24 +1,20 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <interface>
-  <!-- interface-requires gtk+ 3.10 -->
   <object class="GtkTreeStore" id="treestore">
     <columns>
-      <!-- column-name NAME -->
       <column type="gchararray"/>
-      <!-- column-name TITLE -->
       <column type="gchararray"/>
-      <!-- column-name FILENAME -->
       <column type="gchararray"/>
-      <!-- column-name FUNC -->
       <column type="gpointer"/>
-      <!-- column-name STYLE -->
       <column type="gint"/>
     </columns>
   </object>
   <object class="GtkApplicationWindow" id="window">
+    <style>
+      <class name="devel"/>
+    </style>
     <property name="default-width">800</property>
     <property name="default-height">600</property>
-    <property name="title">GTK+ Demo</property>
+    <property name="title">GTK Demo</property>
     <signal name="destroy" handler="gtk_main_quit" swapped="no"/>
     <child type="titlebar">
       <object class="GtkHeaderBar" id="headerbar">
@@ -90,70 +86,63 @@
             <property name="show-border">0</property>
             <property name="expand">1</property>
             <child>
-              <object class="GtkScrolledWindow">
-                <property name="can-focus">1</property>
-                <child>
-                  <object class="GtkTextView" id="info-textview">
+              <object class="GtkNotebookPage">
+                <property name="tab-expand">1</property>
+                <property name="child">
+                  <object class="GtkScrolledWindow">
                     <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="editable">0</property>
-                    <property name="wrap-mode">word</property>
-                    <property name="cursor-visible">0</property>
+                    <child>
+                      <object class="GtkTextView" id="info-textview">
+                        <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="editable">0</property>
+                        <property name="wrap-mode">word</property>
+                        <property name="cursor-visible">0</property>
+                      </object>
+                    </child>
                   </object>
-                </child>
+                </property>
+                <property name="tab">
+                  <object class="GtkLabel">
+                    <property name="label" translatable="yes">_Info</property>
+                    <property name="use-underline">1</property>
+                  </object>
+                </property>
               </object>
-              <packing>
-                <property name="tab-expand">1</property>
-              </packing>
-            </child>
-            <child type="tab">
-              <object class="GtkLabel">
-                <property name="label" translatable="yes">_Info</property>
-                <property name="use-underline">1</property>
-              </object>
-              <packing>
-                <property name="tab-expand">1</property>
-                <property name="tab-fill">0</property>
-              </packing>
             </child>
             <child>
-              <object class="GtkScrolledWindow" id="source-scrolledwindow">
-                <property name="can-focus">1</property>
-                <child>
-                  <object class="GtkTextView" id="source-textview">
-                    <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>
-                  </object>
-                </child>
-              </object>
-              <packing>
+              <object class="GtkNotebookPage">
                 <property name="position">1</property>
                 <property name="tab-expand">1</property>
-              </packing>
-            </child>
-            <child type="tab">
-              <object class="GtkLabel">
-                <property name="label" translatable="yes">Source</property>
+                <property name="child">
+                  <object class="GtkScrolledWindow" id="source-scrolledwindow">
+                    <property name="can-focus">1</property>
+                    <child>
+                      <object class="GtkTextView" id="source-textview">
+                        <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>
+                      </object>
+                    </child>
+                  </object>
+                </property>
+                <property name="tab">
+                  <object class="GtkLabel">
+                    <property name="label" translatable="yes">Source</property>
+                  </object>
+                </property>
               </object>
-              <packing>
-                <property name="position">1</property>
-                <property name="tab-fill">0</property>
-              </packing>
             </child>
           </object>
-          <packing>
-            <property name="position">1</property>
-          </packing>
         </child>
       </object>
     </child>

demos/gtk-demo/menus.c

@@ -115,7 +115,7 @@ do_menus (GtkWidget *do_widget)
 
       menubar = gtk_menu_bar_new ();
       gtk_widget_set_hexpand (menubar, TRUE);
-      gtk_box_pack_start (GTK_BOX (box1), menubar);
+      gtk_container_add (GTK_CONTAINER (box1), menubar);
       gtk_widget_show (menubar);
 
       menu = create_menu (2);
@@ -136,19 +136,19 @@ do_menus (GtkWidget *do_widget)
       gtk_widget_show (menuitem);
 
       box2 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 10);
-      gtk_box_pack_start (GTK_BOX (box1), box2);
+      gtk_container_add (GTK_CONTAINER (box1), box2);
       gtk_widget_show (box2);
 
       button = gtk_button_new_with_label ("Flip");
       g_signal_connect (button, "clicked",
                         G_CALLBACK (change_orientation), menubar);
-      gtk_box_pack_start (GTK_BOX (box2), button);
+      gtk_container_add (GTK_CONTAINER (box2), button);
       gtk_widget_show (button);
 
       button = gtk_button_new_with_label ("Close");
       g_signal_connect_swapped (button, "clicked",
                                 G_CALLBACK(gtk_widget_destroy), window);
-      gtk_box_pack_start (GTK_BOX (box2), button);
+      gtk_container_add (GTK_CONTAINER (box2), button);
       gtk_widget_set_can_default (button, TRUE);
       gtk_widget_grab_default (button);
       gtk_widget_show (button);

demos/gtk-demo/menus.ui

@@ -1,4 +1,3 @@
-<?xml version="1.0"?>
 <interface>
   <menu id="appmenu">
     <section>