Add a reverse list model

This is a simple wrapper list model that reverses
the order of items in the child model.

.gitlab-ci.yml

@@ -1,7 +1,3 @@
-include:
-  - project: 'gnome/citemplates'
-    file: 'flatpak/flatpak_ci_initiative.yml'
-
 stages:
   - build
   - analysis
@@ -20,13 +16,13 @@ stages:
 
 # Common variables
 variables:
-  COMMON_MESON_FLAGS: "-Dwerror=true -Dglib:werror=false -Dpango:werror=false -Dgtk-doc:werror=false -Dwayland-protocols:werror=false -Dsysprof:werror=false"
+  COMMON_MESON_FLAGS: "--fatal-meson-warnings -Dgtk:werror=true"
   BACKEND_FLAGS: "-Dx11-backend=true -Dwayland-backend=true -Dbroadway-backend=true"
   FEATURE_FLAGS: "-Dvulkan=enabled -Dcloudproviders=enabled"
   MESON_TEST_TIMEOUT_MULTIPLIER: 3
-  FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora:v25"
+  FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora:v22"
   FLATPAK_IMAGE: "registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master"
-  DOCS_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora-docs:v25"
+  DOCS_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora-docs:v19"
 
 .only-default:
   only:
@@ -78,6 +74,7 @@ fedora-x86_64:
   script:
     - meson subprojects update
     - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} ${BACKEND_FLAGS} ${FEATURE_FLAGS}
+            -Dsysprof=enabled
             _build
     - ninja -C _build
     - .gitlab-ci/run-tests.sh _build x11
@@ -103,7 +100,6 @@ installed-tests:
   needs: []
   variables:
     EXTRA_MESON_FLAGS: "--prefix=/usr --libdir=/usr/lib64 -Dinstall-tests=true"
-    G_TEST_ACCESSIBLE: 1
   script:
     - meson subprojects update
     - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} ${BACKEND_FLAGS} ${FEATURE_FLAGS}
@@ -153,7 +149,6 @@ msys2-mingw64:
   artifacts:
     paths:
       - "${APPID}-dev.flatpak"
-      - 'repo.tar'
     expire_in: 1 day
   script:
     - bash -x ./.gitlab-ci/flatpak-build.sh "${APPID}"
@@ -205,24 +200,6 @@ flatpak-master:icon-browser:
   variables:
     APPID: org.gtk.IconBrowser4
 
-# Publish the demo apps to the GNOME Nightly repo
-# https://wiki.gnome.org/Apps/Nightly
-# https://gitlab.gnome.org/GNOME/Initiatives/-/wikis/DevOps-with-Flatpak
-nightly demo:
-    extends: '.publish_nightly'
-    dependencies: ['flatpak-master:demo']
-    needs: ['flatpak-master:demo']
-
-nightly factory:
-    extends: '.publish_nightly'
-    dependencies: ['flatpak-master:widget-factory']
-    needs: ['flatpak-master:widget-factory']
-
-nightly icon-browser:
-    extends: '.publish_nightly'
-    dependencies: ['flatpak-master:icon-browser']
-    needs: ['flatpak-master:icon-browser']
-
 static-scan:
   image: $FEDORA_IMAGE
   stage: analysis
@@ -246,7 +223,7 @@ asan-build:
   needs: []
   variables:
   script:
-    - CC=clang meson --buildtype=debugoptimized -Db_sanitize=address -Db_lundef=false -Dintrospection=disabled _build
+    - CC=clang meson --buildtype=debugoptimized -Db_sanitize=address -Db_lundef=false -Dintrospection=false _build
     - ninja -C _build
     - .gitlab-ci/run-tests.sh _build wayland
   artifacts:

.gitlab-ci/fedora-base.Dockerfile

@@ -44,7 +44,6 @@ RUN dnf -y install \
     lcov \
     libasan \
     libattr-devel \
-    libcloudproviders-devel \
     libepoxy-devel \
     libffi-devel \
     libmount-devel \
@@ -87,5 +86,5 @@ RUN dnf -y install \
     xorg-x11-server-Xvfb \
  && dnf clean all
 
-RUN pip3 install meson==0.55.3
+RUN pip3 install meson==0.53.1
 

.gitlab-ci/fedora-docs.Dockerfile

@@ -1,4 +1,4 @@
-FROM registry.gitlab.gnome.org/gnome/gtk/fedora-base:v25
+FROM registry.gitlab.gnome.org/gnome/gtk/fedora-base:v19
 
 RUN dnf -y install pandoc
 

.gitlab-ci/fedora.Dockerfile

@@ -1,4 +1,4 @@
-FROM registry.gitlab.gnome.org/gnome/gtk/fedora-base:v25
+FROM registry.gitlab.gnome.org/gnome/gtk/fedora-base:v21
 
 # Enable sudo for wheel users
 RUN sed -i -e 's/# %wheel/%wheel/' -e '0,/%wheel/{s/%wheel/# %wheel/}' /etc/sudoers

.gitlab-ci/flatpak-build.sh

@@ -22,7 +22,7 @@ flatpak build ${builddir} meson \
                 -Dprint-backends=file \
                 -Dbuild-tests=false \
                 -Dbuild-examples=false \
-                -Dintrospection=disabled \
+                -Dintrospection=false \
                 -Ddemos=true \
                 _flatpak_build
 
@@ -40,8 +40,3 @@ flatpak build-bundle \
         ${appid}-dev.flatpak \
         --runtime-repo=https://nightly.gnome.org/gnome-nightly.flatpakrepo \
         ${appid}
-
-# to be consumed by the nightly publish jobs
-if [[ $CI_COMMIT_BRANCH == master ]]; then
-        tar cf repo.tar ${repodir}
-fi

.gitlab-ci/test-msys2.sh

@@ -48,7 +48,7 @@ if ! pkg-config --atleast-version=2.65.0 glib-2.0; then
 fi
 pkg-config --modversion glib-2.0
 
-if ! pkg-config --atleast-version=1.47.0 pango; then
+if ! pkg-config --atleast-version=1.45.4 pango; then
     git clone https://gitlab.gnome.org/GNOME/pango.git _pango
     meson setup _pango_build _pango
     meson compile -C _pango_build
@@ -60,12 +60,14 @@ pkg-config --modversion pango
 ccache --zero-stats
 ccache --show-stats
 export CCACHE_DISABLE=true
+# FIXME: introspection disabled for now because of
+# https://gitlab.gnome.org/GNOME/gobject-introspection/-/issues/340
 meson \
     -Dx11-backend=false \
     -Dwayland-backend=false \
     -Dwin32-backend=true \
     -Dvulkan=disabled \
-    -Dintrospection=enabled \
+    -Dintrospection=false \
     -Dgtk:werror=true \
     _build
 unset CCACHE_DISABLE

AUTHORS

@@ -1,5 +1,5 @@
-Please do not mail any of the authors listed here
-asking questions about this version of GTK.
+Please do not mail any of the authors listed here 
+asking questions about this version of GTK+. 
 
 Original Authors
 ----------------
@@ -7,8 +7,8 @@ Peter Mattis      <petm@xcf.berkeley.edu>
 Spencer Kimball   <spencer@xcf.berkeley.edu>
 Josh MacDonald    <jmacd@xcf.berkeley.edu>
 
-The Team that build GTK 2 (in alphabetical order)
--------------------------------------------------
+The GTK+ Team (in alphabetical order)
+-------------------------------------
 Shawn T. Amundson <amundson@gtk.org>
 Jerome Bolliet    <bolliet@gtk.org>
 Damon Chaplin     <damon@gtk.org>
@@ -28,24 +28,11 @@ Jay Painter       <jpaint@gtk.org>
 Manish Singh      <manish@gtk.org>
 Owen Taylor       <otaylor@gtk.org>
 
-The current team (GTK 3 and 4)
-------------------------------
-
-Jonas Ådahl       <jadahl@gmail.com>
-Tim Bäder         <mail@baedert.org>
-Emmanuele Bassi   <ebassi@gnome.org>
-Chun-wei Fan      <fanchunwei@src.gnome.org>
-Matthias Clasen   <mclasen@redhat.com>
-Carlos Garnacho   <mrgarnacho@gmail.com>
-Alexander Larsson <alexl@redhat.com>
-Benjamin Otte     <otte@gnome.org>
-
-
 There are many others who have contributed patches; we thank them,
-GTK is much better because of them.
+GTK+ is much better because of them.
 
 
-Over time, GTK has incorporated some pieces of software which
+Over time, GTK+ has incorporated some pieces of software which 
 started as independent projects. We list the original authors here:
 
 
@@ -76,8 +63,3 @@ DirectFB backend
 Denis Oliver Kropp
 Sven Neumann
 Mike Emmel
-
-
-gtkparasite
------------
-Christian Hammond

CONTRIBUTING.md

@@ -56,12 +56,6 @@ 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
 
-It is fine to include screenshots of screen recordings to demonstrate
-an issue that is best to understand visually, but please don't just
-dump screen recordings without further details into issues. It is
-essential that the problem is described in enough detail to reproduce
-it without watching a video.
-
 For small issues, such as:
 
  - spelling/grammar fixes in the documentation

NEWS

@@ -1,427 +1,3 @@
-Overview of Changes in GTK 4.0
-==============================
-
-* Fix problems with synthetic motion events affecting frame rates
-
-* Fix problems with implicit grabs affecting widget states
-
-* Fix problems with zoom mode on scales getting stuck
-
-* Fix submenu closing by outside clicks
-
-* Rename GtkWindow:fullscreen to :fullscreened to help
-  language bindings
-
-* Bump the soname. Stable GTK 4 releases use libgtk-4.0.so.1.xxxx.y
-
-* Adwaita:
- - Reduce hover transition effects in lists
- - Special-case header buttons
-
-* Demos:
- - Remove NoDisplay from desktop files
- - Autoplay the video in widget-factory
-
-* Translation updates:
- Catalan
- Norwegian Bokmål
- Polish
- Spanish
- Swedish
- Romanian
- Ukrainian
-
-
-Overview of Changes in 3.99.5
-=============================
-
-* Accessibility:
- - Map presentation role according to Core-AAM
- - Use presentation role for spacers in list views
- - Set proper roles, relations and descriptions on more widgets
- - Expand the documentation
- - Use a single GTK_A11Y environment variable and document it
- - Serveral memory leak and crash fixes
- - Initialize AT contexts lazily
- - Improve the API for storing lists in relations
- - Implement more of the Component interface
- - Implement the Cache interface
- - Implement ScrollSubstringTo for GtkTextView
-
-* Introspection:
- - Add many missing annotations to APIs
- - In particular, nullability annotation fixes for rust
-
-* Touch support:
- - Fix issues with text handles
- - Fix interaction between touch scrolling and focus
- - Fix active state updates for touch events
- - Allow pressing buttons with multiple fingers
-
-* GtkScrolledWindow:
- - Accumulate velocity with kinetic scrolling
-
-* GtkSearchEntry:
- - Use a better clear icon
-
-* GtkTreeView:
- - Remove the deprecated GtkCellRendererClass.get_size vfunc
-
-* GtkBuilder:
- - Be stricter about <requires>
- - Make gtk-builder-tool simplify update <requires>
-
-* GtkFileChooser:
- - Remove GtkFileChooserButton
-
-* GtkWindow:
- - Replace gtk_window_get_size with gtk_window_get_default_size
- - Add maximized and fullscreen properties
-
-* Make the inspector available in non-debug builds
-
-* CSS:
- - Support conic gradients
-
-* Adwaita:
- - Round all window corners
- - Round submenus
- - Remove the 'chin' on menus
- - Industrial style menuitems
- - Improved tooltip styling
- - Unified sidebar styles
- - Dark prelight
- - Don't backdrop labels
-
-* GSK:
- - Rename render node apis from peek to get
-
-* Make GLES work in the absence of GL_ARB_timer_query
-
-* Rework the way size allocation is integrated in the
-  frame cycle
-
-* Wayland:
- - Support gtk_shell1 version 3 (startup notification
-   and activation)
- - Implmement minimization
-
-* OS X:
- - Mostly working GL renderer
- - Search engine updates
- - Fix rendering artifacts with hover transitions
- - Fix kinetic scrolling deceleration
-
-* Windows:
- - Fix key event generation, making text input work
-
-* Documentation:
- - Add missing enumerations, symbols and types
- - Lots of smaller fixes
-
-* Demos:
- - Make the constraints demo more useful
- - Make search more obvious
- - Add a suggestion entry demo
- - Consistency improvements
- - Use native file choosers
- - Drop 'devel' styling
-
-* Translation updates:
- Belarusian
- Catalan
- Polish
- Spanish
- Swedish
- Ukrainian
-
-
-Overview of Changes in 3.99.4
-=============================
-
-* GtkColumnView:
- - Improve column resizing
- - Make double-click reset column widths
- - Move header outside of scrollbars
-
-* GtkSearchEntry:
- - Add an icon
-
-* GtkDropDown:
- - Polish the appearance
-
-* GtkColorChooser:
- - Accessibility improvements
-
-* GtkPopoverMenu:
- - Add accessibility support
- - Allow custom items. This adds new API:
-   gtk_popover_menu_add/remove_child
-   gtk_popover_menu_bar_add/remove_child
-
-* GtkTextView:
- - Fix rendering and positioning of anchored children
- - Fix positioning of touch handles
-
-* Constraints:
- - Fix loading constraints from ui files
-
-* Media support:
- - Use cubic instead of linear volume
-
-* Accessibility:
- - Implement Component for all widgets
- - Implement Text and EditableText for all editables
- - Rework accessible name/description computation
- - Add documentation for app and widget developers
- - Handle HIDDEN state changes by adding/removing elements
- - Support setting accessibility attributes in ui files
- - Make window controls accessible
-
-* Introspection:
- - Add some missing annotations
-
-* gdk:
- - Deliver events on flush
- - Drop the unused GdkPoint struct from the API
- - Improve popup autohide behavior
-
-* Demos:
- - Add another constraints demo
- - Tweak various demos to improve consistency
- - Small accessibility improvements
-
-* Tools:
- - Improve gtk4-builder-tool handling of various
-   widgets when converting ui files from GTK 3
-
-* Documentation:
- - Use GtkApplication in all examples
- - Improve and expand the widget gallery
-
-* Testsuite:
- - Improve coverage of GDK
- - Improve coverage of gtk4-builder-tool
-
-* Build:
- - Fix the build with cups 2.2.12
- - Make cloudprint support build without warnings
-
-* Broadway:
- - Support modifiers for scroll events
-
-* Windows:
- - Improve IME support
-
-* OS X:
- - Fix various input issues
- - Make GtkGLArea work (with the cairo backend)
-
-* Translation updates:
- German
- Polish
-
-
-Overview of Changes in 3.99.3
-=============================
-
-* Accessibility:
- - Add an initial AT-SPI backend
-
-* GtkEmojiChooser:
- - Allow inserting multiple Emoji by pressing Control
- - Update Emoji data to Unicode 13 / CLDR 37
- - Use translations
- - The recent-emoji setting type changed. Call
-   gsettings reset org.gtk.gtk4.Settings.EmojiChooser recent-emoji
-
-* GtkTextBuffer:
- - Add boolean returns to some get_iter functions
-
-* GtkScale:
- - Change the default value of the :draw-value property
-
-* GtkPopover:
- - Avoid losing focus when popovers are close
-
-* GtkColorChooser:
- - Add color names back for accessibility
-
-* Input methods:
- - Add a 'private' input hint
-
-* GL Renderer:
- - Fix issues with texture caching
- - Fix texture flipping problems
-
-* Build:
- - Use meson yield feature for some options
- - Require gtk-doc 1.33
- - Require sysprof 3.38
-
-* Wayland:
- - Clean up Wayland backend api, add annotations
- - Generate introspection for Wayland backend api
-
-* Windows:
- - Fix modal window handling and window stacking
-
-* MacOS:
- - Fix the build
- - Define GDK_WINDOWING_MACOS
- - Fix various event handling issues
-
-* Demos:
- - Add another column view demo
- - Add an svg paintable demo
-
-* Translation updates
- Czech
- Lithuanian
- Polish
-
-
-Overview of Changes in GTK 3.99.2
-=================================
-
-* GtkButton:
- - Check coordinates for button releases
-
-* GtkColorChooser:
- - Update the default palette
-
-* GtkEntry:
- - Fix issues with Emoji insertion
- - Fix issues with dnd
- - Set correct hotspot for dnd icon
-
-* GtkFileChooser:
- - Fix a crash
- - Fix setting unlisted filters
-
-* GtkFontChooser:
- - Determine sample text based on font coverage (requires fontconfig)
- - Allow filtering by language (requires fontconfig)
- - Don't center the list
-
-* GtkMenuButton:
- - Always use the direction property for the arrow
-
-* GtkPasswordEntry:
- - Use non-pageable memory
- - Add an ::activate signal
-
-* GtkRevealer:
- - Fix clipping issues in the swing transitions
-
-* GtkScrolledWindow:
- - Fix kinetic scrolling in X11
-
-* GtkSearchEntry:
- - Don't handle forwarded events twice
-
-* GtkStack:
- - Add gtk_stack_add_child
-
-* GtkTextView:
- - Fix dnd
- - Improve undo state tracking
- - Speed rendering in the presence of selections
- - Make clickable links work again
- - Fix handling of anchored children
-
-* GtkVideo:
- - Make autoplay work
-
-* CSS:
- - Allow more than 64 selectors per rule
- - Avoid some allocation overhead
-
-* Adwaita:
- - Improve gesture graphics
- - Tweak DND highlight color
- - Add spacing to .navigation-sidebar
-
-* GDK:
- - Add gdk_frame_clock_get_fps
- - GLES: Fix color channel mixup in textures
- - GL: Reduce image copying for texture uploads
-
-* GSK:
- - Add radial gradient nodes
- - Add GskGLShader and shader nodes
-
-* GL renderer:
- - Fix clipping with projective transforms
- - Use linear interpolation for offscreen rendering
-   with non-axis-aligned transforms
- - Fix texture caching to avoid size mismatches
- - Avoid downloading GL textures when possible,
-   improving GtkGLArea performance
-
-* Vulkan renderer:
- - Fix swapchain creation
-
-* Windows:
- - Fix display of CSD windows
-
-* Wayland
- - Always ack configure to avoid jumping windows
- - Use the primary-selection-unstable-v1 protocol
-
-* API cleanups:
- - Make filter and sorter constructors return exact types
- - Rename GdkSurfaceState to GdkToplevelState
- - Remove GdkWaylandSurface::committed
- - Make Wayland backend api take GdkToplevel
- - Drop gtk_widget_new
- - Drop cairo_surface_upload_to_gl
- - Drop gtk_scrolled_window_set_capture_button_press
- - Drop gtk_column_view_column_new_with_factory
- - Rename gtk_buildable_set_name to gtk_buildable_set_buildable_id
- - Drop other GtkBuildable api
-
-* Demos:
- - Bug and crash fixes
- - Cosmetic improvements for several demos
- - Improve search in the sidebar
- - Add a Shadertoy demo
- - Add a OpenGL transitions demo
- - Add an Emblem demo
- - Add a demo for input validation and error states
- - Add a demo for context menus
- - Make gtk-demo demo itself
-
-* Build:
- - Fix Vulkan dependency checking
- - Make sysprof truly optional
-
-* Translation updates:
- Basque
- British English
- Catalan
- Croatian
- Czech
- Danish
- French
- Galician
- German
- Hebrew
- Hungarian
- Indonesian
- Italian
- Kazakh
- Latvian
- Lithuanian
- Persian
- Polish
- Slovak
- Slovenian
- Spanish
- Turkish
- Ukrainian
-
-
 Overview of Changes in GTK 3.99.1
 =================================
 

README.md

@@ -49,12 +49,10 @@ In order to build GTK you will need:
 You will also need various dependencies, based on the platform you are
 building for:
 
-  - a C++ compiler
   - [GLib](https://download.gnome.org/sources/glib)
   - [GdkPixbuf](https://download.gnome.org/sources/gdk-pixbuf)
   - [GObject-Introspection](https://download.gnome.org/sources/gobject-introspection)
   - [Cairo](https://www.cairographics.org)
-  - cairo-gobject
   - [Pango](https://download.gnome.org/sources/pango)
   - [Epoxy](https://github.com/anholt/libepoxy)
   - [Graphene](https://github.com/ebassi/graphene)
@@ -79,12 +77,6 @@ If you are building the Wayland backend, you will also need:
   - Wayland-cursor
   - Wayland-EGL
 
-If you are building the developer documentation, you will also need:
-
-  - gtk-doc
-  - the DocBook xsl stylesheets
-  - pandoc
-
 Once you have all the necessary dependencies, you can build GTK by using
 Meson:
 

config.h.meson

@@ -1,9 +1,8 @@
+/* config.h.in.  Generated from configure.ac by autoheader.  */
+
 /* always defined to indicate that i18n is enabled */
 #define ENABLE_NLS 1
 
-/* Use structured logging */
-#define G_LOG_STRUCTURED 1
-
 /* The prefix for our gettext translation domains. */
 #mesondefine GETTEXT_PACKAGE
 
@@ -70,9 +69,6 @@
 /* Define to 1 if you have the `mkstemp' function. */
 #mesondefine HAVE_MKSTEMP
 
-/* Define to 1 if you have the `mlock` function. */
-#mesondefine HAVE_MLOCK
-
 /* Define to 1 if you have a working `mmap' system call. */
 #mesondefine HAVE_MMAP
 

demos/constraint-editor/constraint-editor-window.c

@@ -36,7 +36,7 @@ struct _ConstraintEditorWindow
 G_DEFINE_TYPE(ConstraintEditorWindow, constraint_editor_window, GTK_TYPE_APPLICATION_WINDOW);
 
 static GtkConstraintTarget *
-find_target (GListModel          *model,
+find_target (GListModel *model,
              GtkConstraintTarget *orig)
 {
   const char *name;
@@ -163,30 +163,20 @@ constraint_editor_window_load (ConstraintEditorWindow *self,
       GtkConstraint *clone;
       GtkConstraintTarget *target;
       GtkConstraintTarget *source;
-      GtkConstraintAttribute source_attr;
 
       item = g_list_model_get_item (list, i);
       constraint = GTK_CONSTRAINT (item);
 
       target = gtk_constraint_get_target (constraint);
       source = gtk_constraint_get_source (constraint);
-      source_attr = gtk_constraint_get_source_attribute (constraint);
-
-      if (source == NULL && source_attr == GTK_CONSTRAINT_ATTRIBUTE_NONE)
-        clone = gtk_constraint_new_constant (find_target (constraint_view_get_model (CONSTRAINT_VIEW (self->view)), target),
+      clone = gtk_constraint_new (find_target (constraint_view_get_model (CONSTRAINT_VIEW (self->view)), target),
                                   gtk_constraint_get_target_attribute (constraint),
                                   gtk_constraint_get_relation (constraint),
+                                  find_target (constraint_view_get_model (CONSTRAINT_VIEW (self->view)), source),
+                                  gtk_constraint_get_target_attribute (constraint),
+                                  gtk_constraint_get_multiplier (constraint),
                                   gtk_constraint_get_constant (constraint),
                                   gtk_constraint_get_strength (constraint));
-      else
-        clone = gtk_constraint_new (find_target (constraint_view_get_model (CONSTRAINT_VIEW (self->view)), target),
-                                    gtk_constraint_get_target_attribute (constraint),
-                                    gtk_constraint_get_relation (constraint),
-                                    find_target (constraint_view_get_model (CONSTRAINT_VIEW (self->view)), source),
-                                    source_attr,
-                                    gtk_constraint_get_multiplier (constraint),
-                                    gtk_constraint_get_constant (constraint),
-                                    gtk_constraint_get_strength (constraint));
 
       constraint_view_add_constraint (CONSTRAINT_VIEW (self->view), clone);
 
@@ -310,7 +300,7 @@ save_response_cb (GtkNativeDialog        *dialog,
       model = constraint_view_get_model (CONSTRAINT_VIEW (self->view));
       text = serialize_model (model);
       file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (dialog));
-      g_file_replace_contents (file, text, strlen (text),
+      g_file_replace_contents (file, text, -1,
                                NULL, FALSE,
                                G_FILE_CREATE_NONE,
                                NULL,

demos/constraint-editor/constraint-editor-window.ui

@@ -1,6 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <template class="ConstraintEditorWindow" parent="GtkApplicationWindow">
+    <style>
+      <class name="devel"/>
+    </style>
     <property name="title" translatable="yes">GTK Constraint Editor</property>
     <property name="default-width">1024</property>
     <property name="default-height">768</property>

demos/constraint-editor/constraint-editor.c

@@ -142,9 +142,6 @@ get_target (GListModel *model,
 {
   int i;
 
-  if (id == NULL)
-    return NULL;
-
   if (strcmp ("super", id) == 0)
     return NULL;
 
@@ -215,22 +212,6 @@ get_relation_nick (GtkConstraintRelation relation)
   return nick;
 }
 
-static const char *
-get_relation_display_name (GtkConstraintRelation relation)
-{
-  switch (relation)
-    {
-    case GTK_CONSTRAINT_RELATION_LE:
-      return "≤";
-    case GTK_CONSTRAINT_RELATION_EQ:
-      return "=";
-    case GTK_CONSTRAINT_RELATION_GE:
-      return "≥";
-    default:
-      return "?";
-    }
-}
-
 static GtkConstraintStrength
 get_strength (const char *id)
 {
@@ -350,7 +331,6 @@ source_attr_changed (ConstraintEditor *editor)
     {
       gtk_widget_set_sensitive (editor->source, TRUE);
       gtk_widget_set_sensitive (editor->multiplier, TRUE);
-      gtk_editable_set_text (GTK_EDITABLE (editor->multiplier), "1");
     }
 }
 
@@ -367,7 +347,7 @@ constraint_editor_constraint_to_string (GtkConstraint *constraint)
 
   name = get_target_name (gtk_constraint_get_target (constraint));
   attr = get_attr_nick (gtk_constraint_get_target_attribute (constraint));
-  relation = get_relation_display_name (gtk_constraint_get_relation (constraint));
+  relation = get_relation_nick (gtk_constraint_get_relation (constraint));
 
   if (name == NULL)
     name = "[ ]";
@@ -461,12 +441,8 @@ update_preview (ConstraintEditor *editor)
 static void
 update_button (ConstraintEditor *editor)
 {
-  const char *target = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->target));
-  const char *source = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->source));
-  const char *source_attr = gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->source_attr));
-
-  if (target &&
-      (source || (source_attr && get_target_attr (source_attr) == GTK_CONSTRAINT_ATTRIBUTE_NONE)))
+  if (gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->target)) != NULL &&
+      gtk_combo_box_get_active_id (GTK_COMBO_BOX (editor->source)) != NULL)
     gtk_widget_set_sensitive (editor->button, TRUE);
   else
     gtk_widget_set_sensitive (editor->button, FALSE);

demos/constraint-editor/constraint-editor.ui

@@ -78,7 +78,6 @@
           <object class="GtkComboBoxText" id="source_attr">
             <signal name="changed" handler="update_preview" swapped="yes"/>
             <signal name="changed" handler="source_attr_changed" swapped="yes"/>
-            <signal name="changed" handler="update_button" swapped="yes"/>
             <layout>
               <property name="column">2</property>
               <property name="row">3</property>

demos/constraint-editor/constraint-view.c

@@ -177,11 +177,11 @@ constraint_view_init (ConstraintView *self)
   guides = gtk_constraint_layout_observe_guides (GTK_CONSTRAINT_LAYOUT (manager));
 
   all_constraints = gtk_constraint_layout_observe_constraints (GTK_CONSTRAINT_LAYOUT (manager));
-  filter = GTK_FILTER (gtk_custom_filter_new (omit_internal, NULL, NULL));
+  filter = gtk_custom_filter_new (omit_internal, NULL, NULL);
   constraints = (GListModel *)gtk_filter_list_model_new (all_constraints, filter);
 
   all_children = gtk_widget_observe_children (GTK_WIDGET (self));
-  filter = GTK_FILTER (gtk_custom_filter_new (omit_internal, NULL, NULL));
+  filter = gtk_custom_filter_new (omit_internal, NULL, NULL);
   children = (GListModel *)gtk_filter_list_model_new (all_children, filter);
 
   list = g_list_store_new (G_TYPE_LIST_MODEL);

demos/constraint-editor/meson.build

@@ -8,16 +8,14 @@ constraint_editor_sources = [
 ]
 
 constraint_editor_resources = gnome.compile_resources('constraint_editor_resources',
-  'constraint-editor.gresource.xml',
-  source_dir: '.',
-)
+                                                      'constraint-editor.gresource.xml',
+                                                      source_dir: '.')
 
 executable('gtk4-constraint-editor',
-  sources: [ constraint_editor_sources, constraint_editor_resources, ],
-  c_args: common_cflags,
-  dependencies: libgtk_dep,
-  include_directories: confinc,
-  gui_app: true,
-  link_args: extra_demo_ldflags,
-  install: false,
-)
+           constraint_editor_sources, constraint_editor_resources,
+           c_args: common_cflags,
+           dependencies: libgtk_dep,
+           include_directories: confinc,
+           gui_app: true,
+           link_args: extra_demo_ldflags,
+           install: false)

demos/gtk-demo/alienplanet.glsl

@@ -1,345 +0,0 @@
-// Originally from: https://www.shadertoy.com/view/wsjBD3
-// License CC0: A battered alien planet
-//  Been experimenting with space inspired shaders
-
-#define PI  3.141592654
-#define TAU (2.0*PI)
-
-#define TOLERANCE       0.00001
-#define MAX_ITER        65
-#define MIN_DISTANCE    0.01
-#define MAX_DISTANCE    9.0
-
-const vec3  skyCol1       = vec3(0.35, 0.45, 0.6);
-const vec3  skyCol2       = vec3(0.4, 0.7, 1.0);
-const vec3  skyCol3       = pow(skyCol1, vec3(0.25));
-const vec3  sunCol1       = vec3(1.0,0.6,0.4);
-const vec3  sunCol2       = vec3(1.0,0.9,0.7);
-const vec3  smallSunCol1  = vec3(1.0,0.5,0.25)*0.5;
-const vec3  smallSunCol2  = vec3(1.0,0.5,0.25)*0.5;
-const vec3  mountainColor = 1.0*sqrt(vec3(0.95, 0.65, 0.45));
-const float cellWidth     = 1.0;
-const vec4  planet        = vec4(80.0, -20.0, 100.0, 50.0)*1000.0;
-
-void rot(inout vec2 p, float a) {
-  float c = cos(a);
-  float s = sin(a);
-  p = vec2(p.x*c + p.y*s, -p.x*s + p.y*c);
-}
-
-vec2 mod2(inout vec2 p, vec2 size) {
-  vec2 c = floor((p + size*0.5)/size);
-  p = mod(p + size*0.5,size) - size*0.5;
-  return c;
-}
-
-float circle(vec2 p, float r) {
-  return length(p) - r;
-}
-
-float egg(vec2 p, float ra, float rb) {
-  const float k = sqrt(3.0);
-  p.x = abs(p.x);
-  float r = ra - rb;
-  return ((p.y<0.0)       ? length(vec2(p.x,  p.y    )) - r :
-          (k*(p.x+r)<p.y) ? length(vec2(p.x,  p.y-k*r)) :
-                              length(vec2(p.x+r,p.y    )) - 2.0*r) - rb;
-}
-
-vec2 hash(vec2 p) {
-  p = vec2(dot (p, vec2 (127.1, 311.7)), dot (p, vec2 (269.5, 183.3)));
-  return -1. + 2.*fract (sin (p)*43758.5453123);
-}
-
-vec2 raySphere(vec3 ro, vec3 rd, vec4 sphere) {
-  vec3 center = sphere.xyz;
-  float radius = sphere.w;
-  vec3 m = ro - center.xyz;
-  float b = dot(m, rd);
-  float c = dot(m, m) - radius*radius;
-  if(c > 0.0 && b > 0.0) return vec2(-1.0, -1.0);
-  float discr = b * b - c;
-  if(discr < 0.0) return vec2(-1.0);
-  float normalMultiplier = 1.0;
-  float s = sqrt(discr);
-  float t0 = -b - s;
-  float t1 = -b + s;;
-  return vec2(t0, t1);
-}
-
-float noize1(vec2 p) {
-  vec2 n = mod2(p, vec2(cellWidth));
-  vec2 hh = hash(sqrt(2.0)*(n+1000.0));
-  hh.x *= hh.y;
-
-  float r = 0.225*cellWidth;
-
-  float d = circle(p, 2.0*r);
-
-  float h = hh.x*smoothstep(0.0, r, -d);
-
-  return h*0.25;
-}
-
-float noize2(vec2 p) {
-  vec2 n = mod2(p, vec2(cellWidth));
-  vec2 hh = hash(sqrt(2.0)*(n+1000.0));
-  hh.x *= hh.y;
-
-  rot(p, TAU*hh.y);
-  float r = 0.45*cellWidth;
-
-//  float d = circle(p, 1.0*r);
-  float d = egg(p, 0.75*r, 0.5*r*abs(hh.y));
-
-  float h = (hh.x)*smoothstep(0.0, r, -2.0*d);
-
-  return h*0.275;
-}
-
-
-float height(vec2 p, float dd, int mx) {
-  const float aa   = 0.45;
-  const float ff   = 2.03;
-  const float tt   = 1.2;
-  const float oo   = 3.93;
-  const float near = 0.25;
-  const float far  = 0.65;
-
-  float a = 1.0;
-  float o = 0.2;
-  float s = 0.0;
-  float d = 0.0;
-
-  int i = 0;
-
-  for (; i < 4;++i) {
-    float nn = a*noize2(p);
-    s += nn;
-    d += abs(a);
-    p += o;
-    a *= aa;
-    p *= ff;
-    o *= oo;
-    rot(p, tt);
-  }
-
-  float lod = s/d;
-
-  float rdd = dd/MAX_DISTANCE;
-  mx = int(mix(float(4), float(mx), step(rdd, far)));
-
-  for (; i < mx; ++i) {
-    float nn = a*noize1(p);
-    s += nn;
-    d += abs(a);
-    p += o;
-    a *= aa;
-    p *= ff;
-    o *= oo;
-    rot(p, tt);
-  }
-
-  float hid = (s/d);
-
-  return mix(hid, lod, smoothstep(near, far, rdd));
-}
-
-float loheight(vec2 p, float d) {
-  return height(p, d, 0);
-}
-
-float height(vec2 p, float d) {
-  return height(p, d, 6);
-}
-
-float hiheight(vec2 p, float d) {
-  return height(p, d, 8);
-}
-
-vec3 normal(vec2 p, float d) {
-  vec2 eps = vec2(0.00125, 0.0);
-
-  vec3 n;
-
-  n.x = (hiheight(p - eps.xy, d) - hiheight(p + eps.xy, d));
-  n.y = 2.0*eps.x;
-  n.z = (hiheight(p - eps.yx, d) - hiheight(p + eps.yx, d));
-
-  return normalize(n);
-}
-
-const float stepLength[] = float[](0.9, 0.25);
-
-
-float march(vec3 ro, vec3 rd, out int max_iter) {
-  float dt = 0.1;
-  float d = MIN_DISTANCE;
-  int currentStep = 0;
-  float lastd = d;
-  for (int i = 0; i < MAX_ITER; ++i)
-  {
-    vec3 p = ro + d*rd;
-    float h = height(p.xz, d);
-
-    if (d > MAX_DISTANCE) {
-      max_iter = i;
-      return MAX_DISTANCE;
-    }
-
-    float hd = p.y - h;
-
-    if (hd < TOLERANCE) {
-      ++currentStep;
-      if (currentStep >= stepLength.length()) {
-        max_iter = i;
-        return d;
-      }
-
-      d = lastd;
-      continue;
-    }
-
-    float sl = stepLength[currentStep];
-
-    dt = max(hd, TOLERANCE)*sl + 0.0025*d;
-    lastd = d;
-    d += dt;
-  }
-
-  max_iter = MAX_ITER;
-  return MAX_DISTANCE;
-}
-
-vec3 sunDirection() {
-  return normalize(vec3(-0.5, 0.085, 1.0));
-}
-
-vec3 smallSunDirection() {
-  return normalize(vec3(-0.2, -0.05, 1.0));
-}
-
-float psin(float f) {
-  return 0.5 + 0.5*sin(f);
-}
-
-vec3 skyColor(vec3 ro, vec3 rd) {
-  vec3 sunDir = sunDirection();
-  vec3 smallSunDir = smallSunDirection();
-
-  float sunDot = max(dot(rd, sunDir), 0.0);
-  float smallSunDot = max(dot(rd, smallSunDir), 0.0);
-
-  float angle = atan(rd.y, length(rd.xz))*2.0/PI;
-
-  vec3 skyCol = mix(mix(skyCol1, skyCol2, max(0.0, angle)), skyCol3, clamp(-angle*2.0, 0.0, 1.0));
-
-  vec3 sunCol = 0.5*sunCol1*pow(sunDot, 20.0) + 8.0*sunCol2*pow(sunDot, 2000.0);
-  vec3 smallSunCol = 0.5*smallSunCol1*pow(smallSunDot, 200.0) + 8.0*smallSunCol2*pow(smallSunDot, 20000.0);
-
-  vec3 dust = pow(sunCol2*mountainColor, vec3(1.75))*smoothstep(0.05, -0.1, rd.y)*0.5;
-
-  vec2 si = raySphere(ro, rd, planet);
-
-  vec3 planetSurface = ro + si.x*rd;
-  vec3 planetNormal = normalize(planetSurface - planet.xyz);
-  float planetDiff = max(dot(planetNormal, sunDir), 0.0);
-  float planetBorder = max(dot(planetNormal, -rd), 0.0);
-  float planetLat = (planetSurface.x+planetSurface.y)*0.0005;
-  vec3 planetCol = mix(1.3*vec3(0.9, 0.8, 0.7), 0.3*vec3(0.9, 0.8, 0.7), pow(psin(planetLat+1.0)*psin(sqrt(2.0)*planetLat+2.0)*psin(sqrt(3.5)*planetLat+3.0), 0.5));
-
-  vec3 final = vec3(0.0);
-
-  final += step(0.0, si.x)*pow(planetDiff, 0.75)*planetCol*smoothstep(-0.075, 0.0, rd.y)*smoothstep(0.0, 0.1, planetBorder);
-
-  final += skyCol + sunCol + smallSunCol + dust;
-
-  return final;
-}
-
-vec3 getColor(vec3 ro, vec3 rd) {
-  int max_iter = 0;
-  vec3 skyCol = skyColor(ro, rd);
-  vec3 col = vec3(0);
-
-  float d = march(ro, rd, max_iter);
-
-  if (d < MAX_DISTANCE)   {
-    vec3 sunDir = sunDirection();
-    vec3 osunDir = sunDir*vec3(-1.0, .0, -1.0);
-    vec3 p = ro + d*rd;
-
-    vec3 normal = normal(p.xz, d);
-
-    float amb = 0.2;
-
-    float dif1 = max(0.0, dot(sunDir, normal));
-    vec3 shd1 = sunCol2*mix(amb, 1.0, pow(dif1, 0.75));
-
-    float dif2 = max(0.0, dot(osunDir, normal));
-    vec3 shd2 = sunCol1*mix(amb, 1.0, pow(dif2, 0.75));
-
-    vec3 ref = reflect(rd, normal);
-    vec3 rcol = skyColor(p, ref);
-
-    col = mountainColor*amb*skyCol3;
-    col += mix(shd1, shd2, -0.5)*mountainColor;
-    float fre = max(dot(normal, -rd), 0.0);
-    fre = pow(1.0 - fre, 5.0);
-    col += rcol*fre*0.5;
-    col += (1.0*p.y);
-    col = tanh(col);
-    col = mix(col, skyCol, smoothstep(0.5*MAX_DISTANCE, 1.0*MAX_DISTANCE, d));
-
-  } else {
-    col = skyCol;
-  }
-
-//  col += vec3(1.1, 0.0, 0.0)* smoothstep(0.25, 1.0,(float(max_iter)/float(MAX_ITER)));
-  return col;
-}
-
-vec3 getSample1(vec2 p, float time) {
-  float off = 0.5*iTime;
-
-  vec3 ro  = vec3(0.5, 1.0-0.25, -2.0 + off);
-  vec3 la  = ro + vec3(0.0, -0.30,  2.0);
-
-  vec3 ww = normalize(la - ro);
-  vec3 uu = normalize(cross(vec3(0.0,1.0,0.0), ww));
-  vec3 vv = normalize(cross(ww, uu));
-  vec3 rd = normalize(p.x*uu + p.y*vv + 2.0*ww);
-
-  vec3 col = getColor(ro, rd)  ;
-
-  return col;
-}
-
-vec3 getSample2(vec2 p, float time) {
-  p.y-=time*0.25;
-  float h = height(p, 0.0);
-  vec3 n = normal(p, 0.0);
-
-  vec3 lp = vec3(10.0, -1.2, 0.0);
-
-  vec3 ld = normalize(vec3(p.x, h, p.y)- lp);
-
-  float d = max(dot(ld, n), 0.0);
-
-  vec3 col = vec3(0.0);
-
-  col = vec3(1.0)*(h+0.1);
-  col += vec3(1.5)*pow(d, 0.75);
-
-  return col;
-}
-
-void mainImage(out vec4 fragColor, vec2 fragCoord) {
-  vec2 q = fragCoord.xy/iResolution.xy;
-  vec2 p = -1.0 + 2.0*q;
-  p.x *= iResolution.x/iResolution.y;
-
-  vec3 col = getSample1(p, iTime);
-
-  fragColor = vec4(col, 1.0);
-}

demos/gtk-demo/application.c

@@ -465,18 +465,18 @@ demo_application_window_size_allocate (GtkWidget *widget,
                                                                           baseline);
 
   if (!window->maximized && !window->fullscreen)
-    gtk_window_get_default_size (GTK_WINDOW (window), &window->width, &window->height);
+    gtk_window_get_size (GTK_WINDOW (window), &window->width, &window->height);
 }
 
 static void
 surface_state_changed (GtkWidget *widget)
 {
   DemoApplicationWindow *window = (DemoApplicationWindow *)widget;
-  GdkToplevelState new_state;
+  GdkSurfaceState new_state;
 
   new_state = gdk_toplevel_get_state (GDK_TOPLEVEL (gtk_native_get_surface (GTK_NATIVE (widget))));
-  window->maximized = (new_state & GDK_TOPLEVEL_STATE_MAXIMIZED) != 0;
-  window->fullscreen = (new_state & GDK_TOPLEVEL_STATE_FULLSCREEN) != 0;
+  window->maximized = (new_state & GDK_SURFACE_STATE_MAXIMIZED) != 0;
+  window->fullscreen = (new_state & GDK_SURFACE_STATE_FULLSCREEN) != 0;
 }
 
 static void

demos/gtk-demo/assistant.c

@@ -1,8 +1,8 @@
 /* Assistant
  *
- * Demonstrates a sample multi-step assistant with GtkAssistant. Assistants
- * are used to divide an operation into several simpler sequential steps,
- * and to guide the user through these steps.
+ * Demonstrates a sample multi-step assistant. Assistants are used to divide
+ * an operation into several simpler sequential steps, and to guide the user
+ * through these steps.
  */
 
 #include <gtk/gtk.h>

demos/gtk-demo/background.glsl

@@ -1,26 +0,0 @@
-uniform float u_time;
-
-void
-mainImage(out vec4 fragColor, in vec2 fragCoord, in vec2 resolution, in vec2 uv)
-{
-  vec2 pos = (fragCoord.xy * 2.0 - resolution.xy)/ min (resolution.x, resolution.y) ;
-
-  float t0 = sin ((u_time + 0.00)*1.0);
-  float t1 = sin ((u_time + 0.30)*0.4);
-  float t2 = cos ((u_time + 0.23)*0.9);
-  float t3 = cos ((u_time + 0.41)*0.6);
-  float t4 = cos ((u_time + 0.11)*0.3);
-
-  vec2 p0 = vec2 (t1, t0) ;
-  vec2 p1 = vec2 (t2, t3) ;
-  vec2 p2 = vec2 (t4, t3) ;
-
-  float r = 1.0/distance (pos, p0);
-  float g = 1.0/distance (pos, p1);
-  float b = 1.0/distance (pos, p2);
-  float sum = r + g + b;
-
-  float alpha = 1.0 - pow (1.0/(sum), 40)*pow (10.0, 40*0.7);
-
-  fragColor = vec4 (r*0.5, g*0.5, b*0.5, 1.0) * alpha;
-}

demos/gtk-demo/blendmodes.ui

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
+  <requires lib="gtk+" version="3.20"/>
   <object class="GtkWindow" id="window">
     <property name="resizable">0</property>
     <property name="title">CSS Blend Modes</property>

demos/gtk-demo/builder.c

@@ -1,8 +1,6 @@
 /* Builder
- * #Keywords: GMenu, GtkPopoverMenuBar, GtkBuilder, GtkStatusBar, GtkShortcutController, toolbar
  *
- * Demonstrates a traditional interface, loaded from a XML description,
- * and shows how to connect actions to the menu items and toolbar buttons.
+ * Demonstrates an interface loaded from a XML description.
  */
 
 #include <gtk/gtk.h>
@@ -106,7 +104,6 @@ do_builder (GtkWidget *do_widget)
       GtkBuilder *builder;
       GtkWidget *about;
       GtkWidget *status;
-      GtkEventController *controller;
 
       builder = gtk_builder_new_from_resource ("/builder/demo.ui");
 
@@ -120,44 +117,10 @@ do_builder (GtkWidget *do_widget)
                                        window);
       gtk_widget_insert_action_group (window, "win", actions);
 
-      controller = gtk_shortcut_controller_new ();
-      gtk_shortcut_controller_set_scope (GTK_SHORTCUT_CONTROLLER (controller),
-                                         GTK_SHORTCUT_SCOPE_GLOBAL);
-      gtk_widget_add_controller (window, controller);
-      gtk_shortcut_controller_add_shortcut (GTK_SHORTCUT_CONTROLLER (controller),
-           gtk_shortcut_new (gtk_keyval_trigger_new (GDK_KEY_n, GDK_CONTROL_MASK),
-                             gtk_named_action_new ("win.new")));
-      gtk_shortcut_controller_add_shortcut (GTK_SHORTCUT_CONTROLLER (controller),
-           gtk_shortcut_new (gtk_keyval_trigger_new (GDK_KEY_o, GDK_CONTROL_MASK),
-                             gtk_named_action_new ("win.open")));
-      gtk_shortcut_controller_add_shortcut (GTK_SHORTCUT_CONTROLLER (controller),
-           gtk_shortcut_new (gtk_keyval_trigger_new (GDK_KEY_s, GDK_CONTROL_MASK),
-                             gtk_named_action_new ("win.save")));
-      gtk_shortcut_controller_add_shortcut (GTK_SHORTCUT_CONTROLLER (controller),
-           gtk_shortcut_new (gtk_keyval_trigger_new (GDK_KEY_s, GDK_CONTROL_MASK|GDK_SHIFT_MASK),
-                             gtk_named_action_new ("win.save-as")));
-      gtk_shortcut_controller_add_shortcut (GTK_SHORTCUT_CONTROLLER (controller),
-           gtk_shortcut_new (gtk_keyval_trigger_new (GDK_KEY_q, GDK_CONTROL_MASK),
-                             gtk_named_action_new ("win.quit")));
-      gtk_shortcut_controller_add_shortcut (GTK_SHORTCUT_CONTROLLER (controller),
-           gtk_shortcut_new (gtk_keyval_trigger_new (GDK_KEY_c, GDK_CONTROL_MASK),
-                             gtk_named_action_new ("win.copy")));
-      gtk_shortcut_controller_add_shortcut (GTK_SHORTCUT_CONTROLLER (controller),
-           gtk_shortcut_new (gtk_keyval_trigger_new (GDK_KEY_x, GDK_CONTROL_MASK),
-                             gtk_named_action_new ("win.cut")));
-      gtk_shortcut_controller_add_shortcut (GTK_SHORTCUT_CONTROLLER (controller),
-           gtk_shortcut_new (gtk_keyval_trigger_new (GDK_KEY_v, GDK_CONTROL_MASK),
-                             gtk_named_action_new ("win.paste")));
-      gtk_shortcut_controller_add_shortcut (GTK_SHORTCUT_CONTROLLER (controller),
-           gtk_shortcut_new (gtk_keyval_trigger_new (GDK_KEY_F1, 0),
-                             gtk_named_action_new ("win.help")));
-      gtk_shortcut_controller_add_shortcut (GTK_SHORTCUT_CONTROLLER (controller),
-           gtk_shortcut_new (gtk_keyval_trigger_new (GDK_KEY_F7, 0),
-                             gtk_named_action_new ("win.about")));
-
       about = GTK_WIDGET (gtk_builder_get_object (builder, "aboutdialog1"));
       gtk_window_set_transient_for (GTK_WINDOW (about), GTK_WINDOW (window));
       gtk_window_set_hide_on_close (GTK_WINDOW (about), TRUE);
+      g_signal_connect (about, "response", G_CALLBACK (gtk_widget_hide), NULL);
       g_object_set_data_full (G_OBJECT (window), "about",
                               about, (GDestroyNotify)gtk_window_destroy);
 

demos/gtk-demo/cogs.glsl

@@ -1,224 +0,0 @@
-// Originally from: https://www.shadertoy.com/view/3ljyDD
-// License CC0: Hexagonal tiling + cog wheels
-//  Nothing fancy, just hexagonal tiling + cog wheels
-
-#define PI      3.141592654
-#define TAU     (2.0*PI)
-#define MROT(a) mat2(cos(a), sin(a), -sin(a), cos(a))
-
-float hash(in vec2 co) {
-  return fract(sin(dot(co.xy ,vec2(12.9898,58.233))) * 13758.5453);
-}
-
-float pcos(float a) {
-  return 0.5 + 0.5*cos(a);
-}
-
-void rot(inout vec2 p, float a) {
-  float c = cos(a);
-  float s = sin(a);
-  p = vec2(c*p.x + s*p.y, -s*p.x + c*p.y);
-}
-
-float modPolar(inout vec2 p, float repetitions) {
-  float angle = 2.0*PI/repetitions;
-  float a = atan(p.y, p.x) + angle/2.;
-  float r = length(p);
-  float c = floor(a/angle);
-  a = mod(a,angle) - angle/2.;
-  p = vec2(cos(a), sin(a))*r;
-  // For an odd number of repetitions, fix cell index of the cell in -x direction
-  // (cell index would be e.g. -5 and 5 in the two halves of the cell):
-  if (abs(c) >= (repetitions/2.0)) c = abs(c);
-  return c;
-}
-
-float pmin(float a, float b, float k) {
-  float h = clamp( 0.5+0.5*(b-a)/k, 0.0, 1.0 );
-  return mix( b, a, h ) - k*h*(1.0-h);
-}
-
-const vec2 sz       = vec2(1.0, sqrt(3.0));
-const vec2 hsz      = 0.5*sz;
-const float smallCount = 16.0;
-
-vec2 hextile(inout vec2 p) {
-  // See Art of Code: Hexagonal Tiling Explained!
-  // https://www.youtube.com/watch?v=VmrIDyYiJBA
-
-  vec2 p1 = mod(p, sz)-hsz;
-  vec2 p2 = mod(p - hsz*1.0, sz)-hsz;
-  vec2 p3 = mix(p2, p1, vec2(length(p1) < length(p2)));
-  vec2 n = p3 - p;
-  p = p3;
-
-  return n;
-}
-
-float circle(vec2 p, float r) {
-  return length(p) - r;
-}
-
-float box(vec2 p, vec2 b) {
-  vec2 d = abs(p)-b;
-  return length(max(d,0.0)) + min(max(d.x,d.y),0.0);
-}
-
-float unevenCapsule(vec2 p, float r1, float r2, float h) {
-  p.x = abs(p.x);
-  float b = (r1-r2)/h;
-  float a = sqrt(1.0-b*b);
-  float k = dot(p,vec2(-b,a));
-  if( k < 0.0 ) return length(p) - r1;
-  if( k > a*h ) return length(p-vec2(0.0,h)) - r2;
-  return dot(p, vec2(a,b) ) - r1;
-}
-
-float cogwheel(vec2 p, float innerRadius, float outerRadius, float cogs, float holes) {
-  float cogWidth  = 0.25*innerRadius*TAU/cogs;
-
-  float d0 = circle(p, innerRadius);
-
-  vec2 icp = p;
-  modPolar(icp, holes);
-  icp -= vec2(innerRadius*0.55, 0.0);
-  float d1 = circle(icp, innerRadius*0.25);
-
-  vec2 cp = p;
-  modPolar(cp, cogs);
-  cp -= vec2(innerRadius, 0.0);
-  float d2 = unevenCapsule(cp.yx, cogWidth, cogWidth*0.75, (outerRadius-innerRadius));
-
-  float d3 = circle(p, innerRadius*0.20);
-
-  float d = 1E6;
-  d = min(d, d0);
-  d = pmin(d, d2, 0.5*cogWidth);
-  d = min(d, d2);
-  d = max(d, -d1);
-  d = max(d, -d3);
-
-  return d;
-}
-
-float ccell1(vec2 p, float r) {
-  float d = 1E6;
-  const float bigCount = 60.0;
-
-  vec2 cp0 = p;
-  rot(cp0, -iTime*TAU/bigCount);
-  float d0 = cogwheel(cp0, 0.36, 0.38, bigCount, 5.0);
-
-  vec2 cp1 = p;
-  float nm = modPolar(cp1, 6.0);
-
-  cp1 -= vec2(0.5, 0.0);
-  rot(cp1, 0.2+TAU*nm/2.0 + iTime*TAU/smallCount);
-  float d1 = cogwheel(cp1, 0.11, 0.125, smallCount, 5.0);
-
-  d = min(d, d0);
-  d = min(d, d1);
-  return d;
-}
-
-float ccell2(vec2 p, float r) {
-  float d = 1E6;
-  vec2 cp0 = p;
-  float nm = modPolar(cp0, 6.0);
-  vec2 cp1 = cp0;
-  const float off = 0.275;
-  const float count = smallCount + 2.0;
-  cp0 -= vec2(off, 0.0);
-  rot(cp0, 0.+TAU*nm/2.0 - iTime*TAU/count);
-  float d0 = cogwheel(cp0, 0.09, 0.105, count, 5.0);
-
-
-  cp1 -= vec2(0.5, 0.0);
-  rot(cp1, 0.2+TAU*nm/2.0 + iTime*TAU/smallCount);
-  float d1 = cogwheel(cp1, 0.11, 0.125, smallCount, 5.0);
-
-  float l = length(p);
-  float d2 = l - (off+0.055);
-  float d3 = d2 + 0.020;;
-
-  vec2 tp0 = p;
-  modPolar(tp0, 60.0);
-  tp0.x -= off;
-  float d4 = box(tp0, vec2(0.0125, 0.005));
-
-  float ctime = -(iTime*0.05 + r)*TAU;
-
-  vec2 tp1 = p;
-  rot(tp1, ctime*12.0);
-  tp1.x -= 0.13;
-  float d5 = box(tp1, vec2(0.125, 0.005));
-
-  vec2 tp2 = p;
-  rot(tp2, ctime);
-  tp2.x -= 0.13*0.5;
-  float d6 = box(tp2, vec2(0.125*0.5, 0.0075));
-
-  float d7 = l - 0.025;
-  float d8 = l - 0.0125;
-
-  d = min(d, d0);
-  d = min(d, d1);
-  d = min(d, d2);
-  d = max(d, -d3);
-  d = min(d, d4);
-  d = min(d, d5);
-  d = min(d, d6);
-  d = min(d, d7);
-  d = max(d, -d8);
-
-  return d;
-}
-
-float df(vec2 p, float scale, inout vec2 nn) {
-  p /= scale;
-  nn = hextile(p);
-  nn = round(nn);
-  float r = hash(nn);
-
-  float d;;
-
-  if (r < 0.5) {
-    d = ccell1(p, r);
-  } else {
-    d = ccell2(p, r);
-  }
-
-  return d*scale;
-}
-
-vec3 postProcess(vec3 col, vec2 q)  {
-  //col = saturate(col);
-  col=pow(clamp(col,0.0,1.0),vec3(0.75));
-  col=col*0.6+0.4*col*col*(3.0-2.0*col);  // contrast
-  col=mix(col, vec3(dot(col, vec3(0.33))), -0.4);  // satuation
-  col*=0.5+0.5*pow(19.0*q.x*q.y*(1.0-q.x)*(1.0-q.y),0.7);  // vigneting
-  return col;
-}
-
-void mainImage(out vec4 fragColor, vec2 fragCoord) {
-  vec2 q = fragCoord/iResolution.xy;
-  vec2 p = -1.0 + 2.0*q;
-  p.x *= iResolution.x/iResolution.y;
-  float tm = iTime*0.1;
-  p += vec2(cos(tm), sin(tm*sqrt(0.5)));
-  float z = mix(0.5, 1.0, pcos(tm*sqrt(0.3)));
-  float aa = 4.0 / iResolution.y;
-
-  vec2 nn = vec2(0.0);
-  float d = df(p, z, nn);
-
-  vec3 col = vec3(160.0)/vec3(255.0);
-  vec3 baseCol = vec3(0.3);
-  vec4 logoCol = vec4(baseCol, 1.0)*smoothstep(-aa, 0.0, -d);
-  col = mix(col, logoCol.xyz, pow(logoCol.w, 8.0));
-  col += 0.4*pow(abs(sin(20.0*d)), 0.6);
-
-  col = postProcess(col, q);
-
-  fragColor = vec4(col, 1.0);
-}

demos/gtk-demo/cogs2.glsl

@@ -1,226 +0,0 @@
-uniform float iTime;
-
-// Originally from: https://www.shadertoy.com/view/3ljyDD
-// License CC0: Hexagonal tiling + cog wheels
-//  Nothing fancy, just hexagonal tiling + cog wheels
-
-#define PI      3.141592654
-#define TAU     (2.0*PI)
-#define MROT(a) mat2(cos(a), sin(a), -sin(a), cos(a))
-
-float hash(in vec2 co) {
-  return fract(sin(dot(co.xy ,vec2(12.9898,58.233))) * 13758.5453);
-}
-
-float pcos(float a) {
-  return 0.5 + 0.5*cos(a);
-}
-
-void rot(inout vec2 p, float a) {
-  float c = cos(a);
-  float s = sin(a);
-  p = vec2(c*p.x + s*p.y, -s*p.x + c*p.y);
-}
-
-float modPolar(inout vec2 p, float repetitions) {
-  float angle = 2.0*PI/repetitions;
-  float a = atan(p.y, p.x) + angle/2.;
-  float r = length(p);
-  float c = floor(a/angle);
-  a = mod(a,angle) - angle/2.;
-  p = vec2(cos(a), sin(a))*r;
-  // For an odd number of repetitions, fix cell index of the cell in -x direction
-  // (cell index would be e.g. -5 and 5 in the two halves of the cell):
-  if (abs(c) >= (repetitions/2.0)) c = abs(c);
-  return c;
-}
-
-float pmin(float a, float b, float k) {
-  float h = clamp( 0.5+0.5*(b-a)/k, 0.0, 1.0 );
-  return mix( b, a, h ) - k*h*(1.0-h);
-}
-
-const vec2 sz       = vec2(1.0, sqrt(3.0));
-const vec2 hsz      = 0.5*sz;
-const float smallCount = 16.0;
-
-vec2 hextile(inout vec2 p) {
-  // See Art of Code: Hexagonal Tiling Explained!
-  // https://www.youtube.com/watch?v=VmrIDyYiJBA
-
-  vec2 p1 = mod(p, sz)-hsz;
-  vec2 p2 = mod(p - hsz*1.0, sz)-hsz;
-  vec2 p3 = mix(p2, p1, vec2(length(p1) < length(p2)));
-  vec2 n = p3 - p;
-  p = p3;
-
-  return n;
-}
-
-float circle(vec2 p, float r) {
-  return length(p) - r;
-}
-
-float box(vec2 p, vec2 b) {
-  vec2 d = abs(p)-b;
-  return length(max(d,0.0)) + min(max(d.x,d.y),0.0);
-}
-
-float unevenCapsule(vec2 p, float r1, float r2, float h) {
-  p.x = abs(p.x);
-  float b = (r1-r2)/h;
-  float a = sqrt(1.0-b*b);
-  float k = dot(p,vec2(-b,a));
-  if( k < 0.0 ) return length(p) - r1;
-  if( k > a*h ) return length(p-vec2(0.0,h)) - r2;
-  return dot(p, vec2(a,b) ) - r1;
-}
-
-float cogwheel(vec2 p, float innerRadius, float outerRadius, float cogs, float holes) {
-  float cogWidth  = 0.25*innerRadius*TAU/cogs;
-
-  float d0 = circle(p, innerRadius);
-
-  vec2 icp = p;
-  modPolar(icp, holes);
-  icp -= vec2(innerRadius*0.55, 0.0);
-  float d1 = circle(icp, innerRadius*0.25);
-
-  vec2 cp = p;
-  modPolar(cp, cogs);
-  cp -= vec2(innerRadius, 0.0);
-  float d2 = unevenCapsule(cp.yx, cogWidth, cogWidth*0.75, (outerRadius-innerRadius));
-
-  float d3 = circle(p, innerRadius*0.20);
-
-  float d = 1E6;
-  d = min(d, d0);
-  d = pmin(d, d2, 0.5*cogWidth);
-  d = min(d, d2);
-  d = max(d, -d1);
-  d = max(d, -d3);
-
-  return d;
-}
-
-float ccell1(vec2 p, float r) {
-  float d = 1E6;
-  const float bigCount = 60.0;
-
-  vec2 cp0 = p;
-  rot(cp0, -iTime*TAU/bigCount);
-  float d0 = cogwheel(cp0, 0.36, 0.38, bigCount, 5.0);
-
-  vec2 cp1 = p;
-  float nm = modPolar(cp1, 6.0);
-
-  cp1 -= vec2(0.5, 0.0);
-  rot(cp1, 0.2+TAU*nm/2.0 + iTime*TAU/smallCount);
-  float d1 = cogwheel(cp1, 0.11, 0.125, smallCount, 5.0);
-
-  d = min(d, d0);
-  d = min(d, d1);
-  return d;
-}
-
-float ccell2(vec2 p, float r) {
-  float d = 1E6;
-  vec2 cp0 = p;
-  float nm = modPolar(cp0, 6.0);
-  vec2 cp1 = cp0;
-  const float off = 0.275;
-  const float count = smallCount + 2.0;
-  cp0 -= vec2(off, 0.0);
-  rot(cp0, 0.+TAU*nm/2.0 - iTime*TAU/count);
-  float d0 = cogwheel(cp0, 0.09, 0.105, count, 5.0);
-
-
-  cp1 -= vec2(0.5, 0.0);
-  rot(cp1, 0.2+TAU*nm/2.0 + iTime*TAU/smallCount);
-  float d1 = cogwheel(cp1, 0.11, 0.125, smallCount, 5.0);
-
-  float l = length(p);
-  float d2 = l - (off+0.055);
-  float d3 = d2 + 0.020;;
-
-  vec2 tp0 = p;
-  modPolar(tp0, 60.0);
-  tp0.x -= off;
-  float d4 = box(tp0, vec2(0.0125, 0.005));
-
-  float ctime = -(iTime*0.05 + r)*TAU;
-
-  vec2 tp1 = p;
-  rot(tp1, ctime*12.0);
-  tp1.x -= 0.13;
-  float d5 = box(tp1, vec2(0.125, 0.005));
-
-  vec2 tp2 = p;
-  rot(tp2, ctime);
-  tp2.x -= 0.13*0.5;
-  float d6 = box(tp2, vec2(0.125*0.5, 0.0075));
-
-  float d7 = l - 0.025;
-  float d8 = l - 0.0125;
-
-  d = min(d, d0);
-  d = min(d, d1);
-  d = min(d, d2);
-  d = max(d, -d3);
-  d = min(d, d4);
-  d = min(d, d5);
-  d = min(d, d6);
-  d = min(d, d7);
-  d = max(d, -d8);
-
-  return d;
-}
-
-float df(vec2 p, float scale, inout vec2 nn) {
-  p /= scale;
-  nn = hextile(p);
-  nn = round(nn);
-  float r = hash(nn);
-
-  float d;;
-
-  if (r < 0.5) {
-    d = ccell1(p, r);
-  } else {
-    d = ccell2(p, r);
-  }
-
-  return d*scale;
-}
-
-vec3 postProcess(vec3 col, vec2 q)  {
-  //col = saturate(col);
-  col=pow(clamp(col,0.0,1.0),vec3(0.75));
-  col=col*0.6+0.4*col*col*(3.0-2.0*col);  // contrast
-  col=mix(col, vec3(dot(col, vec3(0.33))), -0.4);  // satuation
-  col*=0.5+0.5*pow(19.0*q.x*q.y*(1.0-q.x)*(1.0-q.y),0.7);  // vigneting
-  return col;
-}
-
-void mainImage(out vec4 fragColor, in vec2 fragCoord, in vec2 resolution, in vec2 uv) {
-  vec2 q = fragCoord/resolution.xy;
-  vec2 p = -1.0 + 2.0*q;
-  p.x *= resolution.x/resolution.y;
-  float tm = iTime*0.1;
-  p += vec2(cos(tm), sin(tm*sqrt(0.5)));
-  float z = mix(0.5, 1.0, pcos(tm*sqrt(0.3)));
-  float aa = 4.0 / resolution.y;
-
-  vec2 nn = vec2(0.0);
-  float d = df(p, z, nn);
-
-  vec3 col = vec3(160.0)/vec3(255.0);
-  vec3 baseCol = vec3(0.3);
-  vec4 logoCol = vec4(baseCol, 1.0)*smoothstep(-aa, 0.0, -d);
-  col = mix(col, logoCol.xyz, pow(logoCol.w, 8.0));
-  col += 0.4*pow(abs(sin(20.0*d)), 0.6);
-
-  col = postProcess(col, q);
-
-  fragColor = vec4(col, 1.0);
-}

demos/gtk-demo/combobox.c

@@ -1,5 +1,4 @@
 /* Combo Boxes
- * #Keywords: GtkCellRenderer
  *
  * The GtkComboBox widget allows to select one option out of a list.
  * The GtkComboBoxEntry additionally allows the user to enter a value

demos/gtk-demo/constraints.c

@@ -1,16 +1,8 @@
-/* Constraints/Simple Constraints
- * #Keywords: GtkLayoutManager
+/* Constraints/Simple
  *
  * GtkConstraintLayout provides a layout manager that uses relations
- * between widgets (also known as “constraints”) to compute the position
+ * between widgets (also known as "constraints") to compute the position
  * and size of each child.
- *
- * In addition to child widgets, the constraints can involve spacer
- * objects (also known as “guides”). This example has a guide between
- * the two buttons in the top row.
- *
- * Try resizing the window to see how the constraints react to update
- * the layout.
  */
 
 #include <glib/gi18n.h>
@@ -241,12 +233,15 @@ simple_grid_init (SimpleGrid *self)
 
   self->button1 = gtk_button_new_with_label ("Child 1");
   gtk_widget_set_parent (self->button1, widget);
+  gtk_widget_set_name (self->button1, "button1");
 
   self->button2 = gtk_button_new_with_label ("Child 2");
   gtk_widget_set_parent (self->button2, widget);
+  gtk_widget_set_name (self->button2, "button2");
 
   self->button3 = gtk_button_new_with_label ("Child 3");
   gtk_widget_set_parent (self->button3, widget);
+  gtk_widget_set_name (self->button3, "button3");
 
   GtkLayoutManager *manager = gtk_widget_get_layout_manager (GTK_WIDGET (self));
   build_constraints (self, GTK_CONSTRAINT_LAYOUT (manager));
@@ -263,8 +258,7 @@ do_constraints (GtkWidget *do_widget)
 
      window = gtk_window_new ();
      gtk_window_set_display (GTK_WINDOW (window), gtk_widget_get_display (do_widget));
-     gtk_window_set_title (GTK_WINDOW (window), "Simple Constraints");
-     gtk_window_set_default_size (GTK_WINDOW (window), 260, -1);
+     gtk_window_set_title (GTK_WINDOW (window), "Constraints");
      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
      box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);

demos/gtk-demo/constraints2.c

@@ -1,7 +1,6 @@
-/* Constraints/Interactive Constraints
- * #Keywords: GtkConstraintLayout
+/* Constraints/Interactive
  *
- * This example shows how constraints can be updated during user interaction.
+ * Demonstrate how constraints can be updates during user interaction.
  * The vertical edge between the buttons can be dragged with the mouse.
  */
 
@@ -205,7 +204,7 @@ interactive_grid_init (InteractiveGrid *self)
 }
 
 GtkWidget *
-do_constraints_interactive (GtkWidget *do_widget)
+do_constraints2 (GtkWidget *do_widget)
 {
  static GtkWidget *window;
 
@@ -215,8 +214,7 @@ do_constraints_interactive (GtkWidget *do_widget)
 
      window = gtk_window_new ();
      gtk_window_set_display (GTK_WINDOW (window), gtk_widget_get_display (do_widget));
-     gtk_window_set_title (GTK_WINDOW (window), "Interactive Constraints");
-     gtk_window_set_default_size (GTK_WINDOW (window), 260, -1);
+     gtk_window_set_title (GTK_WINDOW (window), "Constraints");
      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
      box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);

demos/gtk-demo/constraints3.c

@@ -2,10 +2,6 @@
  *
  * GtkConstraintLayout allows defining constraints using a
  * compact syntax called Visual Format Language, or VFL.
- *
- * A typical example of a VFL specification looks like this:
- *
- * H:|-[button1(==button2)]-12-[button2]-|
  */
 
 #include <glib/gi18n.h>
@@ -128,7 +124,7 @@ vfl_grid_init (VflGrid *self)
 }
 
 GtkWidget *
-do_constraints_vfl (GtkWidget *do_widget)
+do_constraints3 (GtkWidget *do_widget)
 {
  static GtkWidget *window;
 
@@ -138,8 +134,7 @@ do_constraints_vfl (GtkWidget *do_widget)
 
      window = gtk_window_new ();
      gtk_window_set_display (GTK_WINDOW (window), gtk_widget_get_display (do_widget));
-     gtk_window_set_title (GTK_WINDOW (window), "Constraints — VFL");
-     gtk_window_set_default_size (GTK_WINDOW (window), 260, -1);
+     gtk_window_set_title (GTK_WINDOW (window), "Constraints");
      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
      box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);

demos/gtk-demo/constraints_builder.c

@@ -1,74 +0,0 @@
-/* Constraints/Builder
- *
- * GtkConstraintLayouts can be created in .ui files, and constraints can
- * be set up at that time as well, as this example demonstrates. It shows
- * various ways to do spacing and sizing with constraints.
- *
- * Make the window wider to see the rows react differently
- */
-
-#include <glib/gi18n.h>
-#include <gtk/gtk.h>
-
-G_DECLARE_FINAL_TYPE (ConstraintsGrid, constraints_grid, CONSTRAINTS, GRID, GtkWidget)
-
-struct _ConstraintsGrid
-{
-  GtkWidget parent_instance;
-};
-
-G_DEFINE_TYPE (ConstraintsGrid, constraints_grid, GTK_TYPE_WIDGET)
-
-static void
-constraints_grid_init (ConstraintsGrid *grid)
-{
-}
-
-static void
-constraints_grid_dispose (GObject *object)
-{
-  GtkWidget *widget = GTK_WIDGET (object);
-  GtkWidget *child;
-
-  while ((child = gtk_widget_get_first_child (widget)))
-    gtk_widget_unparent (child);
-
-  G_OBJECT_CLASS (constraints_grid_parent_class)->dispose (object);
-}
-
-static void
-constraints_grid_class_init (ConstraintsGridClass *klass)
-{
-  GObjectClass *object_class = G_OBJECT_CLASS (klass);
-
-  object_class->dispose = constraints_grid_dispose;
-}
-
-GtkWidget *
-do_constraints_builder (GtkWidget *do_widget)
-{
- static GtkWidget *window;
-
- if (!window)
-   {
-     GtkBuilder *builder;
-
-     g_type_ensure (constraints_grid_get_type ());
-
-     builder = gtk_builder_new_from_resource ("/constraints_builder/constraints_builder.ui");
-
-     window = GTK_WIDGET (gtk_builder_get_object (builder, "window1"));
-     gtk_window_set_display (GTK_WINDOW (window),
-                             gtk_widget_get_display (do_widget));
-     g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
-
-     g_object_unref (builder);
-   }
-
- if (!gtk_widget_get_visible (window))
-   gtk_widget_show (window);
- else
-   gtk_window_destroy (GTK_WINDOW (window));
-
- return window;
-}

demos/gtk-demo/constraints_builder.ui

@@ -1,460 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<interface>
-  <object class="GtkWindow" id="window1">
-    <property name="title" translatable="yes">Constraints — Builder</property>
-    <property name="default-width">260</property>
-    <child>
-      <object class="ConstraintsGrid">
-        <property name="halign">fill</property>
-        <property name="valign">fill</property>
-        <property name="margin-top">10</property>
-        <property name="margin-bottom">10</property>
-        <property name="margin-start">10</property>
-        <property name="margin-end">10</property>
-        <property name="layout-manager">
-          <object class="GtkConstraintLayout">
-            <constraints>
-              <guide name="guide1" min-width="10" nat-width="200" strength="weak"/>
-              <guide name="guide2" min-width="10" nat-width="200" strength="weak"/>
-              <guide name="guide3" min-width="10" nat-width="200" strength="weak"/>
-              <guide name="guide4" min-width="10" nat-width="200" strength="weak"/>
-              <guide name="guide5" min-width="10" nat-width="200" strength="weak"/>
-              <guide name="guide6" min-width="10" nat-width="200" strength="weak"/>
-              <guide name="guide7" min-width="10" nat-width="200" strength="weak"/>
-              <guide name="guide8" min-width="10" nat-width="200" strength="weak"/>
-              <guide name="guide9" min-width="0" nat-width="200" strength="weak"/>
-              <guide name="guide10" min-width="0" nat-width="200" strength="weak"/>
-              <guide name="barrier1" min-height="10"/>
-              <guide name="barrier2" min-height="10"/>
-              <guide name="barrier3" min-height="10"/>
-              <guide name="barrier4" min-height="10"/>
-
-              <!-- Spread Chain -->
-              <constraint target="super" target-attribute="top"
-                          relation="eq"
-                          source="button1" source-attribute="top"
-                          strength="required"/>
-              <constraint target="super" target-attribute="top"
-                          relation="eq"
-                          source="button2" source-attribute="top"
-                          strength="required"/>
-              <constraint target="super" target-attribute="top"
-                          relation="eq"
-                          source="button3" source-attribute="top"
-                          strength="required"/>
-
-              <constraint target="super" target-attribute="left"
-                          relation="eq"
-                          source="guide1" source-attribute="left"
-                          strength="required"/>
-              <constraint target="button1" target-attribute="left"
-                          relation="eq"
-                          source="guide1" source-attribute="right"
-                          strength="required"/>
-              <constraint target="guide2" target-attribute="left"
-                          relation="eq"
-                          source="button1" source-attribute="right"
-                          strength="required"/>
-              <constraint target="button2" target-attribute="left"
-                          relation="eq"
-                          source="guide2" source-attribute="right"
-                          strength="required"/>
-              <constraint target="guide3" target-attribute="left"
-                          relation="eq"
-                          source="button2" source-attribute="right"
-                          strength="required"/>
-              <constraint target="button3" target-attribute="left"
-                          relation="eq"
-                          source="guide3" source-attribute="right"
-                          strength="required"/>
-              <constraint target="guide4" target-attribute="left"
-                          relation="eq"
-                          source="button3" source-attribute="right"
-                          strength="required"/>
-              <constraint target="super" target-attribute="right"
-                          relation="eq"
-                          source="guide4" source-attribute="right"
-                          strength="required"/>
-
-              <constraint target="guide1" target-attribute="width"
-                          relation="eq"
-                          source="guide2" source-attribute="width"
-                          strength="required"/>
-              <constraint target="guide2" target-attribute="width"
-                          relation="eq"
-                          source="guide3" source-attribute="width"
-                          strength="required"/>
-              <constraint target="guide3" target-attribute="width"
-                          relation="eq"
-                          source="guide4" source-attribute="width"
-                          strength="required"/>
-
-              <constraint target="button1" target-attribute="width"
-                          relation="eq"
-                          source="button2" source-attribute="width"
-                          strength="required"/>
-              <constraint target="button2" target-attribute="width"
-                          relation="eq"
-                          source="button3" source-attribute="width"
-                          strength="required"/>
-
-              <constraint target="button1" target-attribute="bottom"
-                          relation="eq"
-                          source="barrier1" source-attribute="top"
-                          strength="required"/>
-              <constraint target="button2" target-attribute="bottom"
-                          relation="eq"
-                          source="barrier1" source-attribute="top"
-                          strength="required"/>
-              <constraint target="button3" target-attribute="bottom"
-                          relation="eq"
-                          source="barrier1" source-attribute="top"
-                          strength="required"/>
-
-              <!-- Spread Inside Chain -->
-
-              <constraint target="super" target-attribute="left"
-                          relation="eq"
-                          source="button4" source-attribute="left"
-                          strength="required"/>
-              <constraint target="guide5" target-attribute="left"
-                          relation="eq"
-                          source="button4" source-attribute="right"
-                          strength="required"/>
-              <constraint target="button5" target-attribute="left"
-                          relation="eq"
-                          source="guide5" source-attribute="right"
-                          strength="required"/>
-              <constraint target="guide6" target-attribute="left"
-                          relation="eq"
-                          source="button5" source-attribute="right"
-                          strength="required"/>
-              <constraint target="button6" target-attribute="left"
-                          relation="eq"
-                          source="guide6" source-attribute="right"
-                          strength="required"/>
-              <constraint target="super" target-attribute="right"
-                          relation="eq"
-                          source="button6" source-attribute="right"
-                          strength="required"/>
-
-              <constraint target="guide5" target-attribute="width"
-                          relation="eq"
-                          source="guide6" source-attribute="width"
-                          strength="required"/>
-
-              <constraint target="button4" target-attribute="width"
-                          relation="eq"
-                          source="button5" source-attribute="width"
-                          strength="required"/>
-              <constraint target="button5" target-attribute="width"
-                          relation="eq"
-                          source="button6" source-attribute="width"
-                          strength="required"/>
-
-              <constraint target="button4" target-attribute="top"
-                          relation="eq"
-                          source="barrier1" source-attribute="bottom"
-                          strength="required"/>
-              <constraint target="button5" target-attribute="top"
-                          relation="eq"
-                          source="barrier1" source-attribute="bottom"
-                          strength="required"/>
-              <constraint target="button6" target-attribute="top"
-                          relation="eq"
-                          source="barrier1" source-attribute="bottom"
-                          strength="required"/>
-
-              <constraint target="button4" target-attribute="bottom"
-                          relation="eq"
-                          source="barrier2" source-attribute="top"
-                          strength="required"/>
-              <constraint target="button5" target-attribute="bottom"
-                          relation="eq"
-                          source="barrier2" source-attribute="top"
-                          strength="required"/>
-              <constraint target="button6" target-attribute="bottom"
-                          relation="eq"
-                          source="barrier2" source-attribute="top"
-                          strength="required"/>
-
-              <!-- Weighted Chain -->
-
-              <constraint target="super" target-attribute="left"
-                          relation="eq"
-                          source="button7" source-attribute="left"
-                          strength="required"/>
-              <constraint target="button8" target-attribute="left"
-                          relation="eq"
-                          source="button7" source-attribute="right"
-                          constant="10"
-                          strength="required"/>
-              <constraint target="button9" target-attribute="left"
-                          relation="eq"
-                          source="button8" source-attribute="right"
-                          constant="10"
-                          strength="required"/>
-              <constraint target="super" target-attribute="right"
-                          relation="eq"
-                          source="button9" source-attribute="right"
-                          strength="required"/>
-
-              <constraint target="button8" target-attribute="width"
-                          relation="eq"
-                          source="button7" source-attribute="width"
-                          multiplier="2"
-                          strength="required"/>
-              <constraint target="button9" target-attribute="width"
-                          relation="eq"
-                          source="button7" source-attribute="width"
-                          multiplier="3"
-                          strength="required"/>
-
-              <constraint target="button7" target-attribute="top"
-                          relation="eq"
-                          source="barrier2" source-attribute="bottom"
-                          strength="required"/>
-              <constraint target="button8" target-attribute="top"
-                          relation="eq"
-                          source="barrier2" source-attribute="bottom"
-                          strength="required"/>
-              <constraint target="button9" target-attribute="top"
-                          relation="eq"
-                          source="barrier2" source-attribute="bottom"
-                          strength="required"/>
-
-              <constraint target="button7" target-attribute="bottom"
-                          relation="eq"
-                          source="barrier3" source-attribute="top"
-                          strength="required"/>
-              <constraint target="button8" target-attribute="bottom"
-                          relation="eq"
-                          source="barrier3" source-attribute="top"
-                          strength="required"/>
-              <constraint target="button9" target-attribute="bottom"
-                          relation="eq"
-                          source="barrier3" source-attribute="top"
-                          strength="required"/>
-
-              <!-- Packed Chain -->
-
-              <constraint target="super" target-attribute="left"
-                          relation="eq"
-                          source="guide7" source-attribute="left"
-                          strength="required"/>
-              <constraint target="button10" target-attribute="left"
-                          relation="eq"
-                          source="guide7" source-attribute="right"
-                          strength="required"/>
-              <constraint target="button11" target-attribute="left"
-                          relation="eq"
-                          source="button10" source-attribute="right"
-                          constant="10"
-                          strength="required"/>
-              <constraint target="button12" target-attribute="left"
-                          relation="eq"
-                          source="button11" source-attribute="right"
-                          constant="10"
-                          strength="required"/>
-              <constraint target="guide8" target-attribute="left"
-                          relation="eq"
-                          source="button12" source-attribute="right"
-                          strength="required"/>
-              <constraint target="super" target-attribute="right"
-                          relation="eq"
-                          source="guide8" source-attribute="right"
-                          strength="required"/>
-
-              <constraint target="guide7" target-attribute="width"
-                          relation="eq"
-                          source="guide8" source-attribute="width"
-                          strength="required"/>
-
-              <constraint target="button10" target-attribute="width"
-                          relation="eq"
-                          source="button11" source-attribute="width"
-                          strength="required"/>
-              <constraint target="button11" target-attribute="width"
-                          relation="eq"
-                          source="button12" source-attribute="width"
-                          strength="required"/>
-
-              <constraint target="button10" target-attribute="top"
-                          relation="eq"
-                          source="barrier3" source-attribute="bottom"
-                          strength="required"/>
-              <constraint target="button11" target-attribute="top"
-                          relation="eq"
-                          source="barrier3" source-attribute="bottom"
-                          strength="required"/>
-              <constraint target="button12" target-attribute="top"
-                          relation="eq"
-                          source="barrier3" source-attribute="bottom"
-                          strength="required"/>
-
-              <constraint target="button10" target-attribute="bottom"
-                          relation="eq"
-                          source="barrier4" source-attribute="top"
-                          strength="required"/>
-              <constraint target="button11" target-attribute="bottom"
-                          relation="eq"
-                          source="barrier4" source-attribute="top"
-                          strength="required"/>
-              <constraint target="button12" target-attribute="bottom"
-                          relation="eq"
-                          source="barrier4" source-attribute="top"
-                          strength="required"/>
-
-              <!-- Packed Chain with Bias -->
-
-              <constraint target="super" target-attribute="left"
-                          relation="eq"
-                          source="guide9" source-attribute="left"
-                          strength="required"/>
-              <constraint target="button13" target-attribute="left"
-                          relation="eq"
-                          source="guide9" source-attribute="right"
-                          constant="10"
-                          strength="required"/>
-              <constraint target="button14" target-attribute="left"
-                          relation="eq"
-                          source="button13" source-attribute="right"
-                          constant="10"
-                          strength="required"/>
-              <constraint target="button15" target-attribute="left"
-                          relation="eq"
-                          source="button14" source-attribute="right"
-                          constant="10"
-                          strength="required"/>
-              <constraint target="guide10" target-attribute="left"
-                          relation="eq"
-                          source="button15" source-attribute="right"
-                          constant="10"
-                          strength="required"/>
-              <constraint target="super" target-attribute="right"
-                          relation="eq"
-                          source="guide10" source-attribute="right"
-                          strength="required"/>
-
-              <constraint target="guide9" target-attribute="width"
-                          relation="eq"
-                          source="guide10" source-attribute="width"
-                          multiplier="4"
-                          strength="required"/>
-
-              <constraint target="button13" target-attribute="width"
-                          relation="eq"
-                          source="button14" source-attribute="width"
-                          strength="required"/>
-              <constraint target="button14" target-attribute="width"
-                          relation="eq"
-                          source="button15" source-attribute="width"
-                          strength="required"/>
-
-              <constraint target="button13" target-attribute="top"
-                          relation="eq"
-                          source="barrier4" source-attribute="bottom"
-                          strength="required"/>
-              <constraint target="button14" target-attribute="top"
-                          relation="eq"
-                          source="barrier4" source-attribute="bottom"
-                          strength="required"/>
-              <constraint target="button15" target-attribute="top"
-                          relation="eq"
-                          source="barrier4" source-attribute="bottom"
-                          strength="required"/>
-
-              <constraint target="super" target-attribute="bottom"
-                          relation="ge"
-                          source="button13" source-attribute="bottom"
-                          strength="required"/>
-              <constraint target="super" target-attribute="bottom"
-                          relation="ge"
-                          source="button14" source-attribute="bottom"
-                          strength="required"/>
-              <constraint target="super" target-attribute="bottom"
-                          relation="ge"
-                          source="button15" source-attribute="bottom"
-                          strength="required"/>
-            </constraints>
-          </object>
-        </property>
-        <child>
-          <object class="GtkButton" id="button1">
-            <property name="label">A</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkButton" id="button2">
-            <property name="label">B</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkButton" id="button3">
-            <property name="label">C</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkButton" id="button4">
-            <property name="label">A</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkButton" id="button5">
-            <property name="label">B</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkButton" id="button6">
-            <property name="label">C</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkButton" id="button7">
-            <property name="label">A</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkButton" id="button8">
-            <property name="label">B</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkButton" id="button9">
-            <property name="label">C</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkButton" id="button10">
-            <property name="label">A</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkButton" id="button11">
-            <property name="label">B</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkButton" id="button12">
-            <property name="label">C</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkButton" id="button13">
-            <property name="label">A</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkButton" id="button14">
-            <property name="label">B</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkButton" id="button15">
-            <property name="label">C</property>
-          </object>
-        </child>
-      </object>
-    </child>
-  </object>
-</interface>

demos/gtk-demo/crosswarp.glsl

@@ -1,27 +0,0 @@
-uniform float progress;
-uniform sampler2D u_texture1;
-uniform sampler2D u_texture2;
-
-vec4 getFromColor (vec2 uv) {
-  return GskTexture(u_texture1, uv);
-}
-
-vec4 getToColor (vec2 uv) {
-  return GskTexture(u_texture2, uv);
-}
-
-// Source: https://gl-transitions.com/editor/crosswarp
-// Author: Eke Péter <peterekepeter@gmail.com>
-// License: MIT
-
-vec4 transition(vec2 p) {
-  float x = progress;
-  x=smoothstep(.0,1.0,(x*2.0+p.x-1.0));
-  return mix(getFromColor((p-.5)*(1.-x)+.5), getToColor((p-.5)*x+.5), x);
-}
-
-
-void mainImage(out vec4 fragColor, in vec2 fragCoord, in vec2 resolution, in vec2 uv)
-{
-  fragColor = transition(uv);
-}

demos/gtk-demo/css_accordion.c

@@ -1,6 +1,7 @@
 /* Theming/CSS Accordion
  *
  * A simple accordion demo written using CSS transitions and multiple backgrounds
+ *
  */
 
 #include <gtk/gtk.h>

demos/gtk-demo/css_basics.c

@@ -1,7 +1,8 @@
 /* Theming/CSS Basics
  *
- * GTK themes are written using CSS. Every widget is build of multiple items
+ * Gtk themes are written using CSS. Every widget is build of multiple items
  * that you can style very similarly to a regular website.
+ *
  */
 
 #include <gtk/gtk.h>

demos/gtk-demo/css_multiplebgs.c

@@ -1,7 +1,8 @@
 /* Theming/Multiple Backgrounds
  *
- * GTK themes are written using CSS. Every widget is build of multiple items
+ * Gtk themes are written using CSS. Every widget is build of multiple items
  * that you can style very similarly to a regular website.
+ *
  */
 
 #include <gtk/gtk.h>

demos/gtk-demo/css_pixbufs.c

@@ -1,7 +1,6 @@
 /* Theming/Animated Backgrounds
  *
- * This demo is in honour of a classic Pixbufs demo.
- *
+ * This demo is done in honour of the Pixbufs demo further down.
  * It is done exclusively with CSS as the background of the window.
  */
 

demos/gtk-demo/demo.gresource.xml

@@ -18,9 +18,6 @@
     <file>demoimage.c</file>
     <file>demoimage.h</file>
   </gresource>
-  <gresource prefix="/constraints_builder">
-    <file>constraints_builder.ui</file>
-  </gresource>
   <gresource prefix="/css_accordion">
     <file>css_accordion.css</file>
     <file>reset.css</file>
@@ -43,11 +40,6 @@
     <file>cssview.css</file>
     <file>reset.css</file>
   </gresource>
-  <gresource prefix="/dropdown">
-    <file>suggestionentry.h</file>
-    <file>suggestionentry.c</file>
-    <file>suggestionentry.css</file>
-  </gresource>
   <gresource prefix="/theming_style_classes">
     <file>theming.ui</file>
   </gresource>
@@ -120,9 +112,6 @@
   <gresource prefix="/dnd">
     <file>dnd.css</file>
   </gresource>
-  <gresource prefix="/errorstates">
-    <file>errorstates.ui</file>
-  </gresource>
   <gresource prefix="/fishbowl">
     <file>fishbowl.ui</file>
     <file>gtkfishbowl.c</file>
@@ -132,30 +121,6 @@
     <file>gtkgears.c</file>
     <file>gtkgears.h</file>
   </gresource>
-  <gresource prefix="/shadertoy">
-    <file>gtkshadertoy.c</file>
-    <file>gtkshadertoy.h</file>
-    <file>alienplanet.glsl</file>
-    <file>mandelbrot.glsl</file>
-    <file>neon.glsl</file>
-    <file>cogs.glsl</file>
-    <file>glowingstars.glsl</file>
-  </gresource>
-  <gresource prefix="/gltransition">
-    <file>gtkshaderstack.c</file>
-    <file>gtkshaderstack.h</file>
-    <file>gtkshaderbin.h</file>
-    <file>gtkshaderbin.c</file>
-    <file>gskshaderpaintable.h</file>
-    <file>gskshaderpaintable.c</file>
-    <file>wind.glsl</file>
-    <file>radial.glsl</file>
-    <file>crosswarp.glsl</file>
-    <file>kaleidoscope.glsl</file>
-    <file>cogs2.glsl</file>
-    <file>ripple.glsl</file>
-    <file>background.glsl</file>
-  </gresource>
   <gresource prefix="/iconscroll">
     <file>iconscroll.ui</file>
   </gresource>
@@ -192,9 +157,6 @@
   <gresource prefix="/listview_settings">
     <file>listview_settings.ui</file>
   </gresource>
-  <gresource prefix="/listview_ucd_data/">
-    <file>ucdnames.data</file>
-  </gresource>
   <gresource prefix="/listview_weather">
     <file compressed="true">listview_weather.txt</file>
   </gresource>
@@ -202,21 +164,6 @@
     <file compressed="true">color.names.txt</file>
     <file>listview_colors.css</file>
   </gresource>
-  <gresource prefix="/main">
-    <file>fontify.c</file>
-    <file>fontify.h</file>
-    <file>main.ui</file>
-  </gresource>
-  <gresource prefix="/menu">
-    <file>demo3widget.c</file>
-    <file>demo3widget.h</file>
-    <file>demo3widget.ui</file>
-  </gresource>
-  <gresource prefix="/paintable_svg">
-    <file>svgpaintable.h</file>
-    <file>svgpaintable.c</file>
-    <file>org.gtk.gtk4.NodeEditor.Devel.svg</file>
-  </gresource>
   <gresource prefix="/shortcuts">
     <file>shortcuts.ui</file>
     <file>shortcuts-builder.ui</file>
@@ -236,15 +183,9 @@
     <file>revealer.ui</file>
   </gresource>
   <gresource prefix="/images">
-    <file>pixbufpaintable.h</file>
-    <file>pixbufpaintable.c</file>
     <file>alphatest.png</file>
     <file>floppybuddy.gif</file>
     <file>gtk-logo.webm</file>
-    <file alias="org.gtk.Demo4.svg">data/scalable/apps/org.gtk.Demo4.svg</file>
-  </gresource>
-  <gresource prefix="/video-player">
-    <file>bbb.png</file>
   </gresource>
   <gresource prefix="/sources">
     <file>application_demo.c</file>
@@ -253,9 +194,8 @@
     <file>clipboard.c</file>
     <file>combobox.c</file>
     <file>constraints.c</file>
-    <file>constraints_interactive.c</file>
-    <file>constraints_vfl.c</file>
-    <file>constraints_builder.c</file>
+    <file>constraints2.c</file>
+    <file>constraints3.c</file>
     <file>css_accordion.c</file>
     <file>css_basics.c</file>
     <file>css_blendmodes.c</file>
@@ -270,7 +210,6 @@
     <file>editable_cells.c</file>
     <file>entry_completion.c</file>
     <file>entry_undo.c</file>
-    <file>errorstates.c</file>
     <file>expander.c</file>
     <file>filtermodel.c</file>
     <file>fishbowl.c</file>
@@ -282,7 +221,6 @@
     <file>gears.c</file>
     <file>gestures.c</file>
     <file>glarea.c</file>
-    <file>gltransition.c</file>
     <file>headerbar.c</file>
     <file>hypertext.c</file>
     <file>iconscroll.c</file>
@@ -294,29 +232,24 @@
     <file>layoutmanager2.c</file>
     <file>links.c</file>
     <file>listbox.c</file>
-    <file>listbox_controls.c</file>
+    <file>listbox2.c</file>
     <file>listview_applauncher.c</file>
     <file>listview_colors.c</file>
     <file>listview_clocks.c</file>
     <file>listview_filebrowser.c</file>
     <file>listview_minesweeper.c</file>
     <file>listview_settings.c</file>
-    <file>listview_ucd.c</file>
     <file>listview_weather.c</file>
     <file>listview_words.c</file>
     <file>list_store.c</file>
-    <file>main.c</file>
     <file>markup.c</file>
-    <file>menu.c</file>
     <file>overlay.c</file>
-    <file>overlay_decorative.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_emblem.c</file>
     <file>paintable_mediastream.c</file>
-    <file>paintable_svg.c</file>
     <file>panes.c</file>
     <file>password_entry.c</file>
     <file>peg_solitaire.c</file>
@@ -327,7 +260,6 @@
     <file>scale.c</file>
     <file>search_entry.c</file>
     <file>search_entry2.c</file>
-    <file>shadertoy.c</file>
     <file>shortcuts.c</file>
     <file>shortcut_triggers.c</file>
     <file>sizegroup.c</file>
@@ -359,8 +291,8 @@
     <file>messages.txt</file>
     <file>apple-red.png</file>
   </gresource>
-  <gresource prefix="/listbox_controls">
-    <file>listbox_controls.ui</file>
+  <gresource prefix="/listbox2">
+    <file>listbox2.ui</file>
   </gresource>
   <gresource prefix="/glarea">
     <file>glarea-gl.fs.glsl</file>

demos/gtk-demo/demo.ui

@@ -29,24 +29,29 @@
         <item>
           <attribute name="label" translatable="yes">_New</attribute>
           <attribute name="action">win.new</attribute>
+          <attribute name="accel">&lt;Control&gt;n</attribute>
         </item>
         <item>
           <attribute name="label" translatable="yes">_Open</attribute>
           <attribute name="action">win.open</attribute>
+          <attribute name="accel">&lt;Control&gt;o</attribute>
         </item>
         <item>
           <attribute name="label" translatable="yes">_Save</attribute>
           <attribute name="action">win.save</attribute>
+          <attribute name="accel">&lt;Control&gt;s</attribute>
         </item>
         <item>
           <attribute name="label" translatable="yes">Save _As</attribute>
           <attribute name="action">win.save-as</attribute>
+          <attribute name="accel">&lt;Control&gt;q</attribute>
         </item>
       </section>
       <section>
         <item>
           <attribute name="label" translatable="yes">_Quit</attribute>
           <attribute name="action">win.quit</attribute>
+          <attribute name="accel">&lt;Control&gt;&lt;Shift&gt;s</attribute>
         </item>
       </section>
     </submenu>
@@ -56,14 +61,17 @@
         <item>
           <attribute name="label" translatable="yes">_Copy</attribute>
           <attribute name="action">win.copy</attribute>
+          <attribute name="accel">&lt;Control&gt;c</attribute>
         </item>
         <item>
           <attribute name="label" translatable="yes">_Cut</attribute>
           <attribute name="action">win.cut</attribute>
+          <attribute name="accel">&lt;Control&gt;x</attribute>
         </item>
         <item>
           <attribute name="label" translatable="yes">_Paste</attribute>
           <attribute name="action">win.paste</attribute>
+          <attribute name="accel">&lt;Control&gt;v</attribute>
         </item>
       </section>
     </submenu>
@@ -73,17 +81,19 @@
         <item>
           <attribute name="label" translatable="yes">_Help</attribute>
           <attribute name="action">win.help</attribute>
+          <attribute name="accel">F1</attribute>
         </item>
         <item>
           <attribute name="label" translatable="yes">_About</attribute>
           <attribute name="action">win.about</attribute>
+          <attribute name="accel">F7</attribute>
         </item>
       </section>
     </submenu>
   </menu>
   <object class="GtkAboutDialog" id="aboutdialog1">
     <property name="program-name" translatable="yes">Builder demo</property>
-    <property name="logo-icon-name" translatable="yes">org.gtk.Demo4</property>
+    <property name="logo-icon-name" translatable="yes">gtk3-demo</property>
     <property name="modal">True</property>
   </object>
   <object class="GtkWindow" id="window1">
@@ -96,24 +106,15 @@
         <child>
           <object class="GtkPopoverMenuBar" id="menubar1">
             <property name="menu-model">menubar</property>
-            <accessibility>
-              <property name="label">Main Menu</property>
-            </accessibility>
           </object>
         </child>
         <child>
           <object class="GtkBox" id="toolbar1">
-            <property name="accessible-role">toolbar</property>
-            <property name="css-classes">toolbar</property>
-            <accessibility>
-              <property name="label">Toolbar</property>
-            </accessibility>
             <child>
               <object class="GtkButton">
                 <property name="label" translatable="yes">New</property>
                 <property name="tooltip-text" translatable="yes">Create a new file</property>
                 <property name="icon-name">document-new</property>
-                <property name="action-name">win.new</property>
               </object>
             </child>
             <child>
@@ -121,7 +122,6 @@
                 <property name="label" translatable="yes">Open</property>
                 <property name="tooltip-text" translatable="yes">Open a file</property>
                 <property name="icon-name">document-open</property>
-                <property name="action-name">win.open</property>
               </object>
             </child>
             <child>
@@ -129,7 +129,6 @@
                 <property name="label" translatable="yes">Save</property>
                 <property name="tooltip-text" translatable="yes">Save a file</property>
                 <property name="icon-name">document-save</property>
-                <property name="action-name">win.save</property>
               </object>
             </child>
             <child>
@@ -140,7 +139,6 @@
                 <property name="label" translatable="yes">Copy</property>
                 <property name="tooltip-text" translatable="yes">Copy selected object into the clipboard</property>
                 <property name="icon-name">edit-copy</property>
-                <property name="action-name">win.copy</property>
               </object>
             </child>
             <child>
@@ -148,7 +146,6 @@
                 <property name="label" translatable="yes">Cut</property>
                 <property name="tooltip-text" translatable="yes">Cut selected object into the clipboard</property>
                 <property name="icon-name">edit-cut</property>
-                <property name="action-name">win.cut</property>
               </object>
             </child>
             <child>
@@ -156,7 +153,6 @@
                 <property name="label" translatable="yes">Paste</property>
                 <property name="tooltip-text" translatable="yes">Paste object from the clipboard</property>
                 <property name="icon-name">edit-paste</property>
-                <property name="action-name">win.paste</property>
               </object>
             </child>
           </object>

demos/gtk-demo/demo3widget.c

@@ -1,243 +0,0 @@
-#include <math.h>
-#include "demo3widget.h"
-
-enum
-{
-  PROP_PAINTABLE = 1,
-  PROP_SCALE
-};
-
-struct _Demo3Widget
-{
-  GtkWidget parent_instance;
-
-  GdkPaintable *paintable;
-  float scale;
-
-  GtkWidget *menu;
-};
-
-struct _Demo3WidgetClass
-{
-  GtkWidgetClass parent_class;
-};
-
-G_DEFINE_TYPE (Demo3Widget, demo3_widget, GTK_TYPE_WIDGET)
-
-static void
-demo3_widget_init (Demo3Widget *self)
-{
-  self->scale = 1.f;
-  gtk_widget_init_template (GTK_WIDGET (self));
-}
-
-static void
-demo3_widget_dispose (GObject *object)
-{
-  Demo3Widget *self = DEMO3_WIDGET (object);
-
-  g_clear_object (&self->paintable);
-  g_clear_pointer (&self->menu, gtk_widget_unparent);
-
-  G_OBJECT_CLASS (demo3_widget_parent_class)->dispose (object);
-}
-
-static void
-demo3_widget_snapshot (GtkWidget   *widget,
-                       GtkSnapshot *snapshot)
-{
-  Demo3Widget *self = DEMO3_WIDGET (widget);
-  int x, y, width, height;
-  double w, h;
-
-  width = gtk_widget_get_width (widget);
-  height = gtk_widget_get_height (widget);
-
-  w = self->scale * gdk_paintable_get_intrinsic_width (self->paintable);
-  h = self->scale * gdk_paintable_get_intrinsic_height (self->paintable);
-
-  x = MAX (0, (width - ceil (w)) / 2);
-  y = MAX (0, (height - ceil (h)) / 2);
-
-  gtk_snapshot_push_clip (snapshot, &GRAPHENE_RECT_INIT (0, 0, width, height));
-  gtk_snapshot_save (snapshot);
-  gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT (x, y));
-  gdk_paintable_snapshot (self->paintable, snapshot, w, h);
-  gtk_snapshot_restore (snapshot);
-  gtk_snapshot_pop (snapshot);
-}
-
-static void
-demo3_widget_measure (GtkWidget      *widget,
-                      GtkOrientation  orientation,
-                      int             for_size,
-                      int            *minimum,
-                      int            *natural,
-                      int            *minimum_baseline,
-                      int            *natural_baseline)
-{
-  Demo3Widget *self = DEMO3_WIDGET (widget);
-  int size;
-
-  if (orientation == GTK_ORIENTATION_HORIZONTAL)
-    size = gdk_paintable_get_intrinsic_width (self->paintable);
-  else
-    size = gdk_paintable_get_intrinsic_height (self->paintable);
-
-  *minimum = *natural = self->scale * size;
-}
-
-static void
-demo3_widget_size_allocate (GtkWidget *widget,
-                            int        width,
-                            int        height,
-                            int        baseline)
-{
-  Demo3Widget *self = DEMO3_WIDGET (widget);
-
-  /* Since we are not using a layout manager (who would do this
-   * for us), we need to allocate a size for our menu by calling
-   * gtk_popover_present().
-   */
-  gtk_popover_present (GTK_POPOVER (self->menu));
-}
-
-static void
-demo3_widget_set_property (GObject      *object,
-                           guint         prop_id,
-                           const GValue *value,
-                           GParamSpec   *pspec)
-{
-  Demo3Widget *self = DEMO3_WIDGET (object);
-
-  switch (prop_id)
-    {
-    case PROP_PAINTABLE:
-      g_clear_object (&self->paintable);
-      self->paintable = g_value_dup_object (value);
-      gtk_widget_queue_resize (GTK_WIDGET (object));
-      break;
-
-    case PROP_SCALE:
-      self->scale = g_value_get_float (value);
-      gtk_widget_queue_resize (GTK_WIDGET (object));
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-demo3_widget_get_property (GObject     *object,
-                           guint        prop_id,
-                           GValue      *value,
-                           GParamSpec  *pspec)
-{
-  Demo3Widget *self = DEMO3_WIDGET (object);
-
-  switch (prop_id)
-    {
-    case PROP_PAINTABLE:
-      g_value_set_object (value, self->paintable);
-      break;
-
-    case PROP_SCALE:
-      g_value_set_float (value, self->scale);
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-pressed_cb (GtkGestureClick *gesture,
-            guint            n_press,
-            double           x,
-            double           y,
-            Demo3Widget     *self)
-{
-  /* We are placing our menu at the point where
-   * the click happened, before popping it up.
-   */
-  gtk_popover_set_pointing_to (GTK_POPOVER (self->menu),
-                               &(const GdkRectangle){ x, y, 1, 1 });
-  gtk_popover_popup (GTK_POPOVER (self->menu));
-}
-
-static void
-zoom_cb (GtkWidget  *widget,
-         const char *action_name,
-         GVariant   *parameter)
-{
-  Demo3Widget *self = DEMO3_WIDGET (widget);
-  float scale;
-
-  if (g_str_equal (action_name, "zoom.in"))
-    scale = MIN (10, self->scale * M_SQRT2);
-  else if (g_str_equal (action_name, "zoom.out"))
-    scale = MAX (0.01, self->scale / M_SQRT2);
-  else
-    scale = 1.0;
-
-  gtk_widget_action_set_enabled (widget, "zoom.in", scale < 10);
-  gtk_widget_action_set_enabled (widget, "zoom.out", scale > 0.01);
-  gtk_widget_action_set_enabled (widget, "zoom.reset", scale != 1);
-
-  g_object_set (widget, "scale", scale, NULL);
-}
-
-static void
-demo3_widget_class_init (Demo3WidgetClass *class)
-{
-  GObjectClass *object_class = G_OBJECT_CLASS (class);
-  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
-
-  object_class->dispose = demo3_widget_dispose;
-  object_class->set_property = demo3_widget_set_property;
-  object_class->get_property = demo3_widget_get_property;
-
-  widget_class->snapshot = demo3_widget_snapshot;
-  widget_class->measure = demo3_widget_measure;
-  widget_class->size_allocate = demo3_widget_size_allocate;
-
-  g_object_class_install_property (object_class, PROP_PAINTABLE,
-      g_param_spec_object ("paintable", "Paintable", "Paintable",
-                           GDK_TYPE_PAINTABLE,
-                           G_PARAM_READWRITE));
-
-  g_object_class_install_property (object_class, PROP_SCALE,
-      g_param_spec_float ("scale", "Scale", "Scale",
-                          0.0, 10.0, 1.0,
-                          G_PARAM_READWRITE));
-
-  /* These are the actions that we are using in the menu */
-  gtk_widget_class_install_action (widget_class, "zoom.in", NULL, zoom_cb);
-  gtk_widget_class_install_action (widget_class, "zoom.out", NULL, zoom_cb);
-  gtk_widget_class_install_action (widget_class, "zoom.reset", NULL, zoom_cb);
-
-  gtk_widget_class_set_template_from_resource (widget_class, "/menu/demo3widget.ui");
-  gtk_widget_class_bind_template_child (widget_class, Demo3Widget, menu);
-  gtk_widget_class_bind_template_callback (widget_class, pressed_cb);
-}
-
-GtkWidget *
-demo3_widget_new (const char *resource)
-{
-  Demo3Widget *self;
-  GdkPixbuf *pixbuf;
-  GdkPaintable *paintable;
-
-  pixbuf = gdk_pixbuf_new_from_resource (resource, NULL);
-  paintable = GDK_PAINTABLE (gdk_texture_new_for_pixbuf (pixbuf));
-
-  self = g_object_new (DEMO3_TYPE_WIDGET, "paintable", paintable, NULL);
-
-  g_object_unref (pixbuf);
-  g_object_unref (paintable);
-
-  return GTK_WIDGET (self);
-}

demos/gtk-demo/demo3widget.h

@@ -1,8 +0,0 @@
-#pragma once
-
-#include <gtk/gtk.h>
-
-#define DEMO3_TYPE_WIDGET (demo3_widget_get_type ())
-G_DECLARE_FINAL_TYPE (Demo3Widget, demo3_widget, DEMO3, WIDGET, GtkWidget)
-
-GtkWidget * demo3_widget_new (const char *resource);

demos/gtk-demo/demo3widget.ui

@@ -1,30 +0,0 @@
-<interface>
-  <menu id="model">
-    <item>
-      <attribute name="label">Zoom Out</attribute>
-      <attribute name="action">zoom.out</attribute>
-    </item>
-    <item>
-      <attribute name="label">Zoom In</attribute>
-      <attribute name="action">zoom.in</attribute>
-    </item>
-    <item>
-      <attribute name="label">1∶1</attribute>
-      <attribute name="action">zoom.reset</attribute>
-    </item>
-  </menu>
-  <template class="Demo3Widget">
-    <child>
-      <object class="GtkPopoverMenu" id="menu">
-        <property name="has-arrow">0</property>
-        <property name="menu-model">model</property>
-      </object>
-    </child>
-    <child>
-      <object class="GtkGestureClick">
-        <property name="button">3</property>
-        <signal name="pressed" handler="pressed_cb"/>
-      </object>
-    </child>
-  </template>
-</interface>

demos/gtk-demo/demoimage.c

@@ -47,38 +47,6 @@ get_image_paintable (GtkImage *image)
     }
 }
 
-static void
-update_drag_icon (DemoImage   *demo,
-                  GtkDragIcon *icon)
-{
-  const char *icon_name;
-  GdkPaintable *paintable;
-  GtkWidget *image;
-
-  switch (gtk_image_get_storage_type (GTK_IMAGE (demo->image)))
-    {
-    case GTK_IMAGE_PAINTABLE:
-      paintable = gtk_image_get_paintable (GTK_IMAGE (demo->image));
-      image = gtk_image_new_from_paintable (paintable);
-      break;
-    case GTK_IMAGE_ICON_NAME:
-      icon_name = gtk_image_get_icon_name (GTK_IMAGE (demo->image));
-      image = gtk_image_new_from_icon_name (icon_name);
-      break;
-    case GTK_IMAGE_EMPTY:
-    case GTK_IMAGE_GICON:
-    default:
-      g_warning ("Image storage type %d not handled",
-                 gtk_image_get_storage_type (GTK_IMAGE (demo->image)));
-      return;
-    }
-
-  gtk_image_set_pixel_size (GTK_IMAGE (image),
-                            gtk_image_get_pixel_size (GTK_IMAGE (demo->image)));
-
-  gtk_drag_icon_set_child (icon, image);
-}
-
 static void
 drag_begin (GtkDragSource *source,
             GdkDrag       *drag,
@@ -86,8 +54,14 @@ drag_begin (GtkDragSource *source,
 {
   GtkWidget *widget = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (source));
   DemoImage *demo = DEMO_IMAGE (widget);
+  GdkPaintable *paintable;
 
-  update_drag_icon (demo, GTK_DRAG_ICON (gtk_drag_icon_get_for_drag (drag)));
+  paintable = get_image_paintable (GTK_IMAGE (demo->image));
+  if (paintable)
+    {
+      gtk_drag_icon_set_from_paintable (drag, paintable, -2, -2);
+      g_object_unref (paintable);
+    }
 }
 
 static GdkContentProvider *

demos/gtk-demo/demotaggedentry.c

@@ -44,23 +44,11 @@ G_DEFINE_TYPE_WITH_CODE (DemoTaggedEntry, demo_tagged_entry, GTK_TYPE_WIDGET,
 static void
 demo_tagged_entry_init (DemoTaggedEntry *entry)
 {
-  GtkCssProvider *provider;
-
   entry->text = gtk_text_new ();
   gtk_widget_set_hexpand (entry->text, TRUE);
   gtk_widget_set_vexpand (entry->text, TRUE);
   gtk_widget_set_parent (entry->text, GTK_WIDGET (entry));
   gtk_editable_init_delegate (GTK_EDITABLE (entry));
-  gtk_editable_set_width_chars (GTK_EDITABLE (entry->text), 6);
-  gtk_editable_set_max_width_chars (GTK_EDITABLE (entry->text), 6);
-  gtk_widget_add_css_class (GTK_WIDGET (entry), "tagged");
-
-  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
@@ -128,7 +116,6 @@ demo_tagged_entry_class_init (DemoTaggedEntryClass *klass)
 
   gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BOX_LAYOUT);
   gtk_widget_class_set_css_name (widget_class, "entry");
-  gtk_widget_class_set_accessible_role (widget_class, GTK_ACCESSIBLE_ROLE_TEXT_BOX);
 }
 
 static GtkEditable *
@@ -224,6 +211,7 @@ static void
 demo_tagged_entry_tag_init (DemoTaggedEntryTag *tag)
 {
   GtkGesture *gesture;
+  GtkCssProvider *provider;
 
   tag->box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
   gtk_widget_set_parent (tag->box, GTK_WIDGET (tag));
@@ -233,6 +221,13 @@ demo_tagged_entry_tag_init (DemoTaggedEntryTag *tag)
   gesture = gtk_gesture_click_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

demos/gtk-demo/dialog.c

@@ -1,5 +1,4 @@
 /* Dialogs
- * #Keywords: GtkMessageDialog
  *
  * Dialogs are used to pop up transient windows for information
  * and user feedback.

demos/gtk-demo/dnd.c

@@ -1,12 +1,8 @@
 /* Drag-and-Drop
- * #Keywords: dnd, menu, popover, gesture
  *
  * This demo shows dragging colors and widgets.
  * The items in this demo can be moved, recolored
  * and rotated.
- *
- * The demo also has an example for creating a
- * menu-like popover without using a menu model.
  */
 
 #include <gtk/gtk.h>
@@ -113,9 +109,12 @@ apply_transform (CanvasItem *item)
   y = gtk_widget_get_allocated_height (item->label) / 2.0;
   item->r = sqrt (x*x + y*y);
 
-  transform = gsk_transform_translate (NULL, &(graphene_point_t) { item->r, item->r });
-  transform = gsk_transform_rotate (transform, item->angle + item->delta);
-  transform = gsk_transform_translate (transform, &(graphene_point_t) { -x, -y });
+  transform = gsk_transform_translate (
+                 gsk_transform_rotate (
+                   gsk_transform_translate (NULL,
+                                            &(graphene_point_t) { item->r, item->r }),
+                   item->angle + item->delta),
+                 &(graphene_point_t) { - x, - y });
 
   gtk_fixed_set_child_transform (GTK_FIXED (item->fixed), item->label, transform);
   gsk_transform_unref (transform);

demos/gtk-demo/drawingarea.c

@@ -1,5 +1,4 @@
 /* Drawing Area
- * #Keywords: GtkDrawingArea
  *
  * GtkDrawingArea is a blank area where you can draw custom displays
  * of various kinds.
@@ -311,7 +310,6 @@ do_drawingarea (GtkWidget *do_widget)
       gtk_window_set_display (GTK_WINDOW (window),
                               gtk_widget_get_display (do_widget));
       gtk_window_set_title (GTK_WINDOW (window), "Drawing Area");
-      gtk_window_set_default_size (GTK_WINDOW (window), 250, -1);
 
       g_signal_connect (window, "destroy",
                         G_CALLBACK (close_window), NULL);
@@ -326,8 +324,9 @@ do_drawingarea (GtkWidget *do_widget)
       /*
        * Create the groups area
        */
-      label = gtk_label_new ("Knockout groups");
-      gtk_widget_add_css_class (label, "heading");
+      label = gtk_label_new (NULL);
+      gtk_label_set_markup (GTK_LABEL (label),
+                            "<u>Knockout groups</u>");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
@@ -344,8 +343,9 @@ do_drawingarea (GtkWidget *do_widget)
        * Create the scribble area
        */
 
-      label = gtk_label_new ("Scribble area");
-      gtk_widget_add_css_class (label, "heading");
+      label = gtk_label_new (NULL);
+      gtk_label_set_markup (GTK_LABEL (label),
+                            "<u>Scribble area</u>");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);

demos/gtk-demo/dropdown.c

@@ -1,16 +1,17 @@
-/* Lists/Selections
+/* Drop Downs
  *
  * The GtkDropDown widget is a modern alternative to GtkComboBox.
  * It uses list models instead of tree models, and the content is
  * displayed using widgets instead of cell renderers.
  *
- * This example also shows a custom widget that can replace
- * GtkEntryCompletion or GtkComboBoxText. It is not currently
- * part of GTK.
+ * The examples here demonstrate how to use different kinds of
+ * list models with GtkDropDown, how to use search and how to
+ * display the selected item differently from the presentation
+ * in the popup.
  */
 
 #include <gtk/gtk.h>
-#include "suggestionentry.h"
+
 
 #define STRING_TYPE_HOLDER (string_holder_get_type ())
 G_DECLARE_FINAL_TYPE (StringHolder, string_holder, STRING, HOLDER, GObject)
@@ -64,22 +65,18 @@ strings_setup_item_single_line (GtkSignalListItemFactory *factory,
                                 GtkListItem              *item)
 {
   GtkWidget *box, *image, *title;
-  GtkWidget *checkmark;
 
   box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
 
   image = gtk_image_new ();
   title = gtk_label_new ("");
   gtk_label_set_xalign (GTK_LABEL (title), 0.0);
-  checkmark = gtk_image_new_from_icon_name ("object-select-symbolic");
 
   gtk_box_append (GTK_BOX (box), image);
   gtk_box_append (GTK_BOX (box), title);
-  gtk_box_append (GTK_BOX (box), checkmark);
 
   g_object_set_data (G_OBJECT (item), "title", title);
   g_object_set_data (G_OBJECT (item), "image", image);
-  g_object_set_data (G_OBJECT (item), "checkmark", checkmark);
 
   gtk_list_item_set_child (item, box);
 }
@@ -89,7 +86,6 @@ strings_setup_item_full (GtkSignalListItemFactory *factory,
                          GtkListItem              *item)
 {
   GtkWidget *box, *box2, *image, *title, *description;
-  GtkWidget *checkmark;
 
   image = gtk_image_new ();
   title = gtk_label_new ("");
@@ -97,7 +93,6 @@ strings_setup_item_full (GtkSignalListItemFactory *factory,
   description = gtk_label_new ("");
   gtk_label_set_xalign (GTK_LABEL (description), 0.0);
   gtk_widget_add_css_class (description, "dim-label");
-  checkmark = gtk_image_new_from_icon_name ("object-select-symbolic");
 
   box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
   box2 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
@@ -106,48 +101,26 @@ strings_setup_item_full (GtkSignalListItemFactory *factory,
   gtk_box_append (GTK_BOX (box), box2);
   gtk_box_append (GTK_BOX (box2), title);
   gtk_box_append (GTK_BOX (box2), description);
-  gtk_box_append (GTK_BOX (box), checkmark);
 
   g_object_set_data (G_OBJECT (item), "title", title);
   g_object_set_data (G_OBJECT (item), "image", image);
   g_object_set_data (G_OBJECT (item), "description", description);
-  g_object_set_data (G_OBJECT (item), "checkmark", checkmark);
 
   gtk_list_item_set_child (item, box);
 }
 
-static void
-selected_item_changed (GtkDropDown *dropdown,
-                       GParamSpec  *pspec,
-                       GtkListItem *item)
-{
-  GtkWidget *checkmark;
-
-  checkmark = g_object_get_data (G_OBJECT (item), "checkmark");
-
-  if (gtk_drop_down_get_selected_item (dropdown) == gtk_list_item_get_item (item))
-    gtk_widget_set_opacity (checkmark, 1.0);
-  else
-    gtk_widget_set_opacity (checkmark, 0.0);
-}
-
 static void
 strings_bind_item (GtkSignalListItemFactory *factory,
-                   GtkListItem              *item,
-                   gpointer                  data)
+                    GtkListItem              *item)
 {
-  GtkDropDown *dropdown = data;
   GtkWidget *image, *title, *description;
-  GtkWidget *checkmark;
   StringHolder *holder;
-  GtkWidget *popup;
 
   holder = gtk_list_item_get_item (item);
 
   title = g_object_get_data (G_OBJECT (item), "title");
   image = g_object_get_data (G_OBJECT (item), "image");
   description = g_object_get_data (G_OBJECT (item), "description");
-  checkmark = g_object_get_data (G_OBJECT (item), "checkmark");
 
   gtk_label_set_label (GTK_LABEL (title), holder->title);
   if (image)
@@ -160,43 +133,19 @@ strings_bind_item (GtkSignalListItemFactory *factory,
       gtk_label_set_label (GTK_LABEL (description), holder->description);
       gtk_widget_set_visible (description , holder->description != NULL);
     }
-
-  popup = gtk_widget_get_ancestor (title, GTK_TYPE_POPOVER);
-  if (popup && gtk_widget_is_ancestor (popup, GTK_WIDGET (dropdown)))
-    {
-      gtk_widget_show (checkmark);
-      g_signal_connect (dropdown, "notify::selected-item",
-                        G_CALLBACK (selected_item_changed), item);
-      selected_item_changed (dropdown, NULL, item);
-    }
-  else
-    {
-      gtk_widget_hide (checkmark);
-    }
-}
-
-static void
-strings_unbind_item (GtkSignalListItemFactory *factory,
-                     GtkListItem              *list_item,
-                     gpointer                  data)
-{
-  GtkDropDown *dropdown = data;
-
-  g_signal_handlers_disconnect_by_func (dropdown, selected_item_changed, list_item);
 }
 
 static GtkListItemFactory *
-strings_factory_new (gpointer data, gboolean full)
+strings_factory_new (gboolean full)
 {
   GtkListItemFactory *factory;
 
   factory = gtk_signal_list_item_factory_new ();
   if (full)
-    g_signal_connect (factory, "setup", G_CALLBACK (strings_setup_item_full), data);
+    g_signal_connect (factory, "setup", G_CALLBACK (strings_setup_item_full), NULL);
   else
-    g_signal_connect (factory, "setup", G_CALLBACK (strings_setup_item_single_line), data);
-  g_signal_connect (factory, "bind", G_CALLBACK (strings_bind_item), data);
-  g_signal_connect (factory, "unbind", G_CALLBACK (strings_unbind_item), data);
+    g_signal_connect (factory, "setup", G_CALLBACK (strings_setup_item_single_line), NULL);
+  g_signal_connect (factory, "bind", G_CALLBACK (strings_bind_item), NULL);
 
   return factory;
 }
@@ -237,22 +186,19 @@ drop_down_new_from_strings (const char *const *titles,
   g_return_val_if_fail (descriptions == NULL || g_strv_length ((char **)icons) == g_strv_length ((char **)descriptions), NULL);
 
   model = strings_model_new (titles, icons, descriptions);
-  widget = g_object_new (GTK_TYPE_DROP_DOWN,
-                         "model", model,
-                         NULL);
-  g_object_unref (model);
-
-  factory = strings_factory_new (widget, FALSE);
+  factory = strings_factory_new (FALSE);
   if (icons != NULL || descriptions != NULL)
-    list_factory = strings_factory_new (widget, TRUE);
+    list_factory = strings_factory_new (TRUE);
   else
     list_factory = NULL;
 
-  g_object_set (widget,
-                "factory", factory,
-                "list-factory", list_factory,
-                NULL);
+  widget = g_object_new (GTK_TYPE_DROP_DOWN,
+                         "model", model,
+                         "factory", factory,
+                         "list-factory", list_factory,
+                         NULL);
 
+  g_object_unref (model);
   g_object_unref (factory);
   if (list_factory)
     g_object_unref (list_factory);
@@ -272,110 +218,13 @@ get_title (gpointer item)
   return g_strdup (STRING_HOLDER (item)->title);
 }
 
-static char *
-get_file_name (gpointer item)
-{
-  return g_strdup (g_file_info_get_display_name (G_FILE_INFO (item)));
-}
-
-static void
-setup_item (GtkSignalListItemFactory *factory,
-            GtkListItem              *item)
-{
-  GtkWidget *box;
-  GtkWidget *icon;
-  GtkWidget *label;
-
-  box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
-  icon = gtk_image_new ();
-  label = gtk_label_new ("");
-  gtk_label_set_xalign (GTK_LABEL (label), 0);
-  gtk_box_append (GTK_BOX (box), icon);
-  gtk_box_append (GTK_BOX (box), label);
-  gtk_list_item_set_child (item, box);
-}
-
-static void
-bind_item (GtkSignalListItemFactory *factory,
-           GtkListItem              *item)
-{
-  MatchObject *match = MATCH_OBJECT (gtk_list_item_get_item (item));
-  GFileInfo *info = G_FILE_INFO (match_object_get_item (match));
-  GtkWidget *box = gtk_list_item_get_child (item);
-  GtkWidget *icon = gtk_widget_get_first_child (box);
-  GtkWidget *label = gtk_widget_get_last_child (box);
-
-  gtk_image_set_from_gicon (GTK_IMAGE (icon), g_file_info_get_icon (info));
-  gtk_label_set_label (GTK_LABEL (label), g_file_info_get_display_name (info));
-}
-
-static void
-setup_highlight_item (GtkSignalListItemFactory *factory,
-                      GtkListItem              *item)
-{
-  GtkWidget *label;
-
-  label = gtk_label_new ("");
-  gtk_label_set_xalign (GTK_LABEL (label), 0);
-  gtk_list_item_set_child (item, label);
-}
-
-static void
-bind_highlight_item (GtkSignalListItemFactory *factory,
-                     GtkListItem              *item)
-{
-  MatchObject *obj;
-  GtkWidget *label;
-  PangoAttrList *attrs;
-  PangoAttribute *attr;
-  const char *str;
-
-  obj = MATCH_OBJECT (gtk_list_item_get_item (item));
-  label = gtk_list_item_get_child (item);
-
-  str = match_object_get_string (obj);
-
-  gtk_label_set_label (GTK_LABEL (label), str);
-  attrs = pango_attr_list_new ();
-  attr = pango_attr_weight_new (PANGO_WEIGHT_BOLD);
-  attr->start_index = match_object_get_match_start (obj);
-  attr->end_index = match_object_get_match_end (obj);
-  pango_attr_list_insert (attrs, attr);
-  gtk_label_set_attributes (GTK_LABEL (label), attrs);
-  pango_attr_list_unref (attrs);
-}
-
-static void
-match_func (MatchObject *obj,
-            const char  *search,
-            gpointer     user_data)
-{
-  char *tmp1, *tmp2;
-  char *p;
-
-  tmp1 = g_utf8_normalize (match_object_get_string (obj), -1, G_NORMALIZE_ALL);
-  tmp2 = g_utf8_normalize (search, -1, G_NORMALIZE_ALL);
-
-  if ((p = strstr (tmp1, tmp2)) != NULL)
-    match_object_set_match (obj,
-                            p - tmp1,
-                            (p - tmp1) + g_utf8_strlen (search, -1),
-                            1);
-  else
-    match_object_set_match (obj, 0, 0, 0);
-
-  g_free (tmp1);
-  g_free (tmp2);
-}
-
 GtkWidget *
 do_dropdown (GtkWidget *do_widget)
 {
   static GtkWidget *window = NULL;
-  GtkWidget *button, *box, *spin, *check, *hbox, *label, *entry;
+  GtkWidget *button, *box, *spin, *check;
   GListModel *model;
   GtkExpression *expression;
-  GtkListItemFactory *factory;
   const char * const times[] = { "1 minute", "2 minutes", "5 minutes", "20 minutes", NULL };
   const char * const many_times[] = {
     "1 minute", "2 minutes", "5 minutes", "10 minutes", "15 minutes", "20 minutes",
@@ -388,49 +237,22 @@ do_dropdown (GtkWidget *do_widget)
   const char * const device_descriptions[] = {
     "Built-in Audio", "Built-in audio", "Thinkpad Tunderbolt 3 Dock USB Audio", "Thinkpad Tunderbolt 3 Dock USB Audio", NULL
   };
-  char *cwd;
-  GFile *file;
-  GListModel *dir;
-  GtkStringList *strings;
 
   if (!window)
     {
       window = gtk_window_new ();
       gtk_window_set_display (GTK_WINDOW (window),
                               gtk_widget_get_display (do_widget));
-      gtk_window_set_title (GTK_WINDOW (window), "Selections");
+      gtk_window_set_title (GTK_WINDOW (window), "Drop Downs");
       gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
-      hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 20);
-
-      gtk_widget_set_margin_start (hbox, 20);
-      gtk_widget_set_margin_end (hbox, 20);
-      gtk_widget_set_margin_top (hbox, 20);
-      gtk_widget_set_margin_bottom (hbox, 20);
-      gtk_window_set_child (GTK_WINDOW (window), hbox);
-
       box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 10);
-      gtk_box_append (GTK_BOX (hbox), box);
-
-      label = gtk_label_new ("Dropdowns");
-      gtk_widget_add_css_class (label, "title-4");
-      gtk_box_append (GTK_BOX (box), label);
-
-      /* A basic dropdown */
-      button = drop_down_new_from_strings (times, NULL, NULL);
-      gtk_box_append (GTK_BOX (box), button);
-
-      /* A dropdown using an expression to obtain strings */
-      button = drop_down_new_from_strings (many_times, NULL, NULL);
-      gtk_drop_down_set_enable_search (GTK_DROP_DOWN (button), TRUE);
-      expression = gtk_cclosure_expression_new (G_TYPE_STRING, NULL,
-                                                0, NULL,
-                                                (GCallback)get_title,
-                                                NULL, NULL);
-      gtk_drop_down_set_expression (GTK_DROP_DOWN (button), expression);
-      gtk_expression_unref (expression);
-      gtk_box_append (GTK_BOX (box), button);
+      gtk_widget_set_margin_start (box, 10);
+      gtk_widget_set_margin_end (box, 10);
+      gtk_widget_set_margin_top (box, 10);
+      gtk_widget_set_margin_bottom (box, 10);
+      gtk_window_set_child (GTK_WINDOW (window), box);
 
       button = gtk_drop_down_new (NULL, NULL);
 
@@ -448,118 +270,30 @@ do_dropdown (GtkWidget *do_widget)
 
       spin = gtk_spin_button_new_with_range (-1, g_list_model_get_n_items (G_LIST_MODEL (model)), 1);
       gtk_widget_set_halign (spin, GTK_ALIGN_START);
-      gtk_widget_set_margin_start (spin, 20);
       g_object_bind_property  (button, "selected", spin, "value", G_BINDING_SYNC_CREATE | G_BINDING_BIDIRECTIONAL);
       gtk_box_append (GTK_BOX (box), spin);
 
       check = gtk_check_button_new_with_label ("Enable search");
-      gtk_widget_set_margin_start (check, 20);
       g_object_bind_property  (button, "enable-search", check, "active", G_BINDING_SYNC_CREATE | G_BINDING_BIDIRECTIONAL);
       gtk_box_append (GTK_BOX (box), check);
 
       g_object_unref (model);
 
-      /* A dropdown with a separate list factory */
-      button = drop_down_new_from_strings (device_titles, device_icons, device_descriptions);
+      button = drop_down_new_from_strings (times, NULL, NULL);
       gtk_box_append (GTK_BOX (box), button);
 
-      gtk_box_append (GTK_BOX (hbox), gtk_separator_new (GTK_ORIENTATION_VERTICAL));
-
-      box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 10);
-      gtk_box_append (GTK_BOX (hbox), box);
-
-      label = gtk_label_new ("Suggestions");
-      gtk_widget_add_css_class (label, "title-4");
-      gtk_box_append (GTK_BOX (box), label);
-
-      /* A basic suggestion entry */
-      entry = suggestion_entry_new ();
-      g_object_set (entry, "placeholder-text", "Words with T or G…", NULL);
-      strings = gtk_string_list_new ((const char *[]){
-                                     "GNOME",
-                                     "gnominious",
-                                     "Gnomonic projection",
-                                     "total",
-                                     "totally",
-                                     "toto",
-                                     "tottery",
-                                     "totterer",
-                                     "Totten trust",
-                                     "totipotent",
-                                     "totipotency",
-                                     "totemism",
-                                     "totem pole",
-                                     "Totara",
-                                     "totalizer",
-                                     "totalizator",
-                                     "totalitarianism",
-                                     "total parenteral nutrition",
-                                     "total hysterectomy",
-                                     "total eclipse",
-                                     "Totipresence",
-                                     "Totipalmi",
-                                     "Tomboy",
-                                     "zombie",
-                                     NULL});
-      suggestion_entry_set_model (SUGGESTION_ENTRY (entry), G_LIST_MODEL (strings));
-      g_object_unref (strings);
-
-      gtk_box_append (GTK_BOX (box), entry);
-
-      /* A suggestion entry using a custom model, and no filtering */
-      entry = suggestion_entry_new ();
-
-      cwd = g_get_current_dir ();
-      file = g_file_new_for_path (cwd);
-      dir = G_LIST_MODEL (gtk_directory_list_new ("standard::display-name,standard::content-type,standard::icon,standard::size", file));
-      suggestion_entry_set_model (SUGGESTION_ENTRY (entry), dir);
-      g_object_unref (dir);
-      g_object_unref (file);
-      g_free (cwd);
-
+      button = drop_down_new_from_strings (many_times, NULL, NULL);
+      gtk_drop_down_set_enable_search (GTK_DROP_DOWN (button), TRUE);
       expression = gtk_cclosure_expression_new (G_TYPE_STRING, NULL,
                                                 0, NULL,
-                                                (GCallback)get_file_name,
+                                                (GCallback)get_title,
                                                 NULL, NULL);
-      suggestion_entry_set_expression (SUGGESTION_ENTRY (entry), expression);
+      gtk_drop_down_set_expression (GTK_DROP_DOWN (button), expression);
       gtk_expression_unref (expression);
+      gtk_box_append (GTK_BOX (box), button);
 
-      factory = gtk_signal_list_item_factory_new ();
-      g_signal_connect (factory, "setup", G_CALLBACK (setup_item), NULL);
-      g_signal_connect (factory, "bind", G_CALLBACK (bind_item), NULL);
-
-      suggestion_entry_set_factory (SUGGESTION_ENTRY (entry), factory);
-      g_object_unref (factory);
-
-      suggestion_entry_set_use_filter (SUGGESTION_ENTRY (entry), FALSE);
-      suggestion_entry_set_show_arrow (SUGGESTION_ENTRY (entry), TRUE);
-
-      gtk_box_append (GTK_BOX (box), entry);
-
-      /* A suggestion entry with match highlighting */
-      entry = suggestion_entry_new ();
-      g_object_set (entry, "placeholder-text", "Destination", NULL);
-
-      strings = gtk_string_list_new ((const char *[]){
-                                     "app-mockups",
-                                     "settings-mockups",
-                                     "os-mockups",
-                                     "software-mockups",
-                                     "mocktails",
-                                     NULL});
-      suggestion_entry_set_model (SUGGESTION_ENTRY (entry), G_LIST_MODEL (strings));
-      g_object_unref (strings);
-
-      gtk_box_append (GTK_BOX (box), entry);
-
-      suggestion_entry_set_match_func (SUGGESTION_ENTRY (entry), match_func, NULL, NULL);
-
-      factory = gtk_signal_list_item_factory_new ();
-      g_signal_connect (factory, "setup", G_CALLBACK (setup_highlight_item), NULL);
-      g_signal_connect (factory, "bind", G_CALLBACK (bind_highlight_item), NULL);
-      suggestion_entry_set_factory (SUGGESTION_ENTRY (entry), factory);
-      g_object_unref (factory);
-
+      button = drop_down_new_from_strings (device_titles, device_icons, device_descriptions);
+      gtk_box_append (GTK_BOX (box), button);
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/entry_completion.c

@@ -78,11 +78,11 @@ do_entry_completion (GtkWidget *do_widget)
       gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
-      vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
-      gtk_widget_set_margin_start (vbox, 18);
-      gtk_widget_set_margin_end (vbox, 18);
-      gtk_widget_set_margin_top (vbox, 18);
-      gtk_widget_set_margin_bottom (vbox, 18);
+      vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
+      gtk_widget_set_margin_start (vbox, 5);
+      gtk_widget_set_margin_end (vbox, 5);
+      gtk_widget_set_margin_top (vbox, 5);
+      gtk_widget_set_margin_bottom (vbox, 5);
       gtk_window_set_child (GTK_WINDOW (window), vbox);
 
       label = gtk_label_new (NULL);

demos/gtk-demo/entry_undo.c

@@ -27,16 +27,16 @@ do_entry_undo (GtkWidget *do_widget)
       gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
-      vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
-      gtk_widget_set_margin_start (vbox, 18);
-      gtk_widget_set_margin_end (vbox, 18);
-      gtk_widget_set_margin_top (vbox, 18);
-      gtk_widget_set_margin_bottom (vbox, 18);
+      vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
+      gtk_widget_set_margin_start (vbox, 5);
+      gtk_widget_set_margin_end (vbox, 5);
+      gtk_widget_set_margin_top (vbox, 5);
+      gtk_widget_set_margin_bottom (vbox, 5);
       gtk_window_set_child (GTK_WINDOW (window), vbox);
 
       label = gtk_label_new (NULL);
       gtk_label_set_markup (GTK_LABEL (label),
-                            "Use Control+z or Control+Shift+z to undo or redo changes");
+                            "Use Primary+z or Primary+Shift+z to undo or redo changes");
       gtk_box_append (GTK_BOX (vbox), label);
 
       /* Create our entry */

demos/gtk-demo/errorstates.c

@@ -1,124 +0,0 @@
-/* Error States
- *
- * GtkLabel and GtkEntry can indicate errors if you set the .error
- * style class on them.
- *
- * This examples shows how this can be used in a dialog for input validation.
- *
- * It also shows how pass callbacks and objects to GtkBuilder with
- * GtkBuilderScope and gtk_builder_expose_object().
- */
-
-#include <glib/gi18n.h>
-#include <gtk/gtk.h>
-
-static void
-validate_more_details (GtkEntry   *entry,
-                       GParamSpec *pspec,
-                       GtkEntry   *details)
-{
-  if (strlen (gtk_editable_get_text (GTK_EDITABLE (entry))) > 0 &&
-      strlen (gtk_editable_get_text (GTK_EDITABLE (details))) == 0)
-    {
-      gtk_widget_set_tooltip_text (GTK_WIDGET (entry), "Must have details first");
-      gtk_widget_add_css_class (GTK_WIDGET (entry), "error");
-    }
-  else
-    {
-      gtk_widget_set_tooltip_text (GTK_WIDGET (entry), "");
-      gtk_widget_remove_css_class (GTK_WIDGET (entry), "error");
-    }
-}
-
-static gboolean
-mode_switch_state_set (GtkSwitch *sw,
-                       gboolean   state,
-                       GtkWidget *scale)
-{
-  GtkWidget *label;
-
-  label = GTK_WIDGET (g_object_get_data (G_OBJECT (sw), "error_label"));
-
-  if (!state ||
-      (gtk_range_get_value (GTK_RANGE (scale)) > 50))
-    {
-      gtk_widget_hide (label);
-      gtk_switch_set_state (sw, state);
-    }
-  else
-    {
-      gtk_widget_show (label);
-    }
-
-  return TRUE;
-}
-
-static void
-level_scale_value_changed (GtkRange *range,
-                           GtkWidget *sw)
-{
-  GtkWidget *label;
-
-  label = GTK_WIDGET (g_object_get_data (G_OBJECT (sw), "error_label"));
-
-  if (gtk_switch_get_active (GTK_SWITCH (sw)) &&
-      !gtk_switch_get_state (GTK_SWITCH (sw)) &&
-      (gtk_range_get_value (range) > 50))
-    {
-      gtk_widget_hide (label);
-      gtk_switch_set_state (GTK_SWITCH (sw), TRUE);
-    }
-  else if (gtk_switch_get_state (GTK_SWITCH (sw)) &&
-          (gtk_range_get_value (range) <= 50))
-    {
-      gtk_switch_set_state (GTK_SWITCH (sw), FALSE);
-    }
-}
-
-GtkWidget *
-do_errorstates (GtkWidget *do_widget)
-{
-  static GtkWidget *window = NULL;
-
-  if (!window)
-    {
-      GtkWidget *toplevel;
-      GtkBuilder *builder;
-      GtkBuilderScope *scope;
-      GtkWidget *sw, *label;
-
-      toplevel = GTK_WIDGET (gtk_widget_get_root (do_widget));
-
-      scope = gtk_builder_cscope_new ();
-      gtk_builder_cscope_add_callback_symbols (GTK_BUILDER_CSCOPE (scope),
-              "validate_more_details", G_CALLBACK (validate_more_details),
-              "mode_switch_state_set", G_CALLBACK (mode_switch_state_set),
-              "level_scale_value_changed", G_CALLBACK (level_scale_value_changed),
-              NULL);
-
-      builder = gtk_builder_new ();
-      gtk_builder_set_scope (builder, scope);
-      gtk_builder_expose_object (builder, "toplevel", G_OBJECT (toplevel));
-      gtk_builder_add_from_resource (builder, "/errorstates/errorstates.ui", NULL);
-
-      window = GTK_WIDGET (gtk_builder_get_object (builder, "dialog"));
-
-      gtk_window_set_display (GTK_WINDOW (window),
-                              gtk_widget_get_display (do_widget));
-      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
-
-      sw = GTK_WIDGET (gtk_builder_get_object (builder, "mode_switch"));
-      label = GTK_WIDGET (gtk_builder_get_object (builder, "error_label"));
-      g_object_set_data (G_OBJECT (sw), "error_label", label);
-
-      g_object_unref (builder);
-      g_object_unref (scope);
-    }
-
-  if (!gtk_widget_get_visible (window))
-    gtk_widget_show (window);
-  else
-    gtk_window_destroy (GTK_WINDOW (window));
-
-  return window;
-}

demos/gtk-demo/errorstates.ui

@@ -1,158 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<interface>
-  <object class="GtkDialog" id="dialog">
-    <property name="transient-for">toplevel</property>
-    <property name="modal">1</property>
-    <property name="resizable">0</property>
-    <property name="use-header-bar">1</property>
-    <property name="title" translatable="yes">Error States</property>
-    <property name="hide-on-close">1</property>
-    <child internal-child="content_area">
-      <object class="GtkBox">
-        <child>
-          <object class="GtkGrid">
-            <property name="row-spacing">10</property>
-            <property name="column-spacing">10</property>
-            <property name="margin-start">20</property>
-            <property name="margin-end">20</property>
-            <property name="margin-top">20</property>
-            <property name="margin-bottom">20</property>
-            <child>
-              <object class="GtkLabel">
-                <property name="halign">end</property>
-                <property name="valign">baseline</property>
-                <property name="label">_Details</property>
-                <property name="use-underline">1</property>
-                <property name="mnemonic-widget">details_entry</property>
-                <style>
-                  <class name="dim-label"/>
-                </style>
-                <layout>
-                  <property name="column">0</property>
-                  <property name="row">0</property>
-                </layout>
-              </object>
-            </child>
-            <child>
-              <object class="GtkEntry" id="details_entry">
-                <property name="valign">baseline</property>
-                <signal name="notify::text" handler="validate_more_details" object="more_details_entry" swapped="yes"/>
-                <layout>
-                  <property name="column">1</property>
-                  <property name="row">0</property>
-                  <property name="column-span">2</property>
-                </layout>
-              </object>
-            </child>
-            <child>
-              <object class="GtkLabel">
-                <property name="halign">end</property>
-                <property name="valign">baseline</property>
-                <property name="label">More D_etails</property>
-                <property name="use-underline">1</property>
-                <property name="mnemonic-widget">more_details_entry</property>
-                <style>
-                  <class name="dim-label"/>
-                </style>
-                <layout>
-                  <property name="column">0</property>
-                  <property name="row">1</property>
-                </layout>
-              </object>
-            </child>
-            <child>
-              <object class="GtkEntry" id="more_details_entry">
-                <property name="valign">baseline</property>
-                <signal name="notify::text" handler="validate_more_details" object="details_entry" swapped="no"/>
-                <layout>
-                  <property name="column">1</property>
-                  <property name="row">1</property>
-                  <property name="column-span">2</property>
-                </layout>
-              </object>
-            </child>
-            <child>
-              <object class="GtkLabel">
-                <property name="halign">end</property>
-                <property name="valign">baseline</property>
-                <property name="label">_Level</property>
-                <property name="use-underline">1</property>
-                <property name="mnemonic-widget">level_scale</property>
-                <style>
-                  <class name="dim-label"/>
-                </style>
-                <layout>
-                  <property name="column">0</property>
-                  <property name="row">2</property>
-                </layout>
-              </object>
-            </child>
-            <child>
-              <object class="GtkScale" id="level_scale">
-                <property name="valign">baseline</property>
-                <property name="draw-value">0</property>
-                <property name="adjustment">
-                  <object class="GtkAdjustment">
-                    <property name="upper">100</property>
-                    <property name="lower">0</property>
-                    <property name="value">50</property>
-                    <property name="step-increment">1</property>
-                    <property name="page-increment">10</property>
-                  </object>
-                </property>
-                <signal name="value-changed" handler="level_scale_value_changed" object="mode_switch" swapped="no"/>
-                <layout>
-                  <property name="column">1</property>
-                  <property name="row">2</property>
-                  <property name="column-span">2</property>
-                </layout>
-              </object>
-            </child>
-            <child>
-              <object class="GtkLabel">
-                <property name="halign">end</property>
-                <property name="valign">baseline</property>
-                <property name="label">_Mode</property>
-                <property name="use-underline">1</property>
-                <property name="mnemonic-widget">mode_switch</property>
-                <style>
-                  <class name="dim-label"/>
-                </style>
-                <layout>
-                  <property name="column">0</property>
-                  <property name="row">3</property>
-                </layout>
-              </object>
-            </child>
-            <child>
-              <object class="GtkSwitch" id="mode_switch">
-                <property name="halign">start</property>
-                <property name="valign">baseline</property>
-                <signal name="state-set" handler="mode_switch_state_set" object="level_scale" swapped="no"/>
-                <layout>
-                  <property name="column">1</property>
-                  <property name="row">3</property>
-                </layout>
-              </object>
-            </child>
-            <child>
-              <object class="GtkLabel" id="error_label">
-                <property name="visible">0</property>
-                <property name="halign">start</property>
-                <property name="valign">baseline</property>
-                <property name="label">Level too low</property>
-                <style>
-                  <class name="error"/>
-                </style>
-                <layout>
-                  <property name="column">2</property>
-                  <property name="row">3</property>
-                </layout>
-              </object>
-            </child>
-          </object>
-        </child>
-      </object>
-    </child>
-  </object>
-</interface>

demos/gtk-demo/filtermodel.c

@@ -1,5 +1,4 @@
 /* Tree View/Filter Model
- * #Keywords: GtkTreeView
  *
  * This example demonstrates how GtkTreeModelFilter can be used not
  * just to show a subset of the rows, but also to compute columns

demos/gtk-demo/filtermodel.ui

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
+  <requires lib="gtk+" version="3.16"/>
   <object class="GtkListStore" id="liststore1">
     <columns>
       <column type="gint"/>

demos/gtk-demo/fishbowl.c

@@ -9,7 +9,6 @@
 
 #include "gtkfishbowl.h"
 #include "gtkgears.h"
-#include "gskshaderpaintable.h"
 
 const char *const css =
 ".blurred-button {"
@@ -150,38 +149,6 @@ create_switch (void)
   return w;
 }
 
-static gboolean
-update_paintable (GtkWidget     *widget,
-                  GdkFrameClock *frame_clock,
-                  gpointer       user_data)
-{
-  GskShaderPaintable *paintable;
-  gint64 frame_time;
-
-  paintable = GSK_SHADER_PAINTABLE (gtk_picture_get_paintable (GTK_PICTURE (widget)));
-  frame_time = gdk_frame_clock_get_frame_time (frame_clock);
-  gsk_shader_paintable_update_time (paintable, 0, frame_time);
-
-  return G_SOURCE_CONTINUE;
-}
-
-static GtkWidget *
-create_cogs (void)
-{
-  GtkWidget *picture;
-  static GskGLShader *cog_shader = NULL;
-  GdkPaintable *paintable;
-
- if (cog_shader == NULL)
-    cog_shader = gsk_gl_shader_new_from_resource ("/gltransition/cogs2.glsl");
-  paintable = gsk_shader_paintable_new (g_object_ref (cog_shader), NULL);
-  picture = gtk_picture_new_for_paintable (paintable);
-  gtk_widget_set_size_request (picture, 150, 75);
-  gtk_widget_add_tick_callback (picture, update_paintable, NULL, NULL);
-
-  return picture;
-}
-
 static void
 mapped (GtkWidget *w)
 {
@@ -218,7 +185,6 @@ static const struct {
   { "Gears",      create_gears          },
   { "Switch",     create_switch         },
   { "Menubutton", create_menu_button    },
-  { "Shader",     create_cogs           },
 };
 
 static int selected_widget_type = -1;

demos/gtk-demo/fishbowl.ui

@@ -33,9 +33,6 @@
                 <lookup name="framerate">bowl</lookup>
               </closure>
             </binding>
-            <attributes>
-              <attribute name="font-features" value="tnum=1"/>
-            </attributes>
           </object>
         </child>
         <child type="end">

demos/gtk-demo/fixed.c

@@ -1,5 +1,4 @@
 /* Fixed Layout
- * #Keywords: GtkLayoutManager
  *
  * GtkFixed is a container that allows placing and transforming
  * widgets manually.

demos/gtk-demo/font-features.ui

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
+  <requires lib="gtk+" version="3.12"/>
   <object class="GtkWindow" id="window">
     <property name="default-width">600</property>
     <property name="default-height">500</property>

demos/gtk-demo/font_features.c

@@ -1068,6 +1068,7 @@ update_font_variations (void)
   unsigned int length;
   int i;
 
+  child = gtk_widget_get_first_child (variations_grid);
   while ((child = gtk_widget_get_first_child (variations_grid)))
     gtk_grid_remove (GTK_GRID (variations_grid), child);
 

demos/gtk-demo/fontify.c

@@ -24,29 +24,15 @@ insert_tags_for_attributes (GtkTextBuffer     *buffer,
                             GtkTextIter       *end)
 {
   GtkTextTagTable *table;
-  GSList *attrs, *l;
+  PangoAttribute *attr;
   GtkTextTag *tag;
   char name[256];
-  float fg_alpha, bg_alpha;
 
   table = gtk_text_buffer_get_tag_table (buffer);
 
-#define LANGUAGE_ATTR(attr_name) \
-    { \
-      const char *language = pango_language_to_string (((PangoAttrLanguage*)attr)->value); \
-      g_snprintf (name, 256, "language=%s", language); \
-      tag = gtk_text_tag_table_lookup (table, name); \
-      if (!tag) \
-        { \
-          tag = gtk_text_tag_new (name); \
-          g_object_set (tag, #attr_name, language, NULL); \
-          gtk_text_tag_table_add (table, tag); \
-          g_object_unref (tag); \
-        } \
-      gtk_text_buffer_apply_tag (buffer, tag, start, end); \
-    }
-
-#define STRING_ATTR(attr_name) \
+#define STRING_ATTR(pango_attr_name, attr_name) \
+  attr = pango_attr_iterator_get (iter, pango_attr_name); \
+  if (attr) \
     { \
       const char *string = ((PangoAttrString*)attr)->value; \
       g_snprintf (name, 256, #attr_name "=%s", string); \
@@ -61,7 +47,9 @@ insert_tags_for_attributes (GtkTextBuffer     *buffer,
       gtk_text_buffer_apply_tag (buffer, tag, start, end); \
     }
 
-#define INT_ATTR(attr_name) \
+#define INT_ATTR(pango_attr_name, attr_name) \
+  attr = pango_attr_iterator_get (iter, pango_attr_name); \
+  if (attr) \
     { \
       int value = ((PangoAttrInt*)attr)->value; \
       g_snprintf (name, 256, #attr_name "=%d", value); \
@@ -76,24 +64,9 @@ insert_tags_for_attributes (GtkTextBuffer     *buffer,
       gtk_text_buffer_apply_tag (buffer, tag, start, end); \
     }
 
-#define FONT_ATTR(attr_name) \
-    { \
-      PangoFontDescription *desc = ((PangoAttrFontDesc*)attr)->desc; \
-      char *str = pango_font_description_to_string (desc); \
-      g_snprintf (name, 256, "font-desc=%s", str); \
-      g_free (str); \
-      tag = gtk_text_tag_table_lookup (table, name); \
-      if (!tag) \
-        { \
-          tag = gtk_text_tag_new (name); \
-          g_object_set (tag, #attr_name, desc, NULL); \
-          gtk_text_tag_table_add (table, tag); \
-          g_object_unref (tag); \
-        } \
-      gtk_text_buffer_apply_tag (buffer, tag, start, end); \
-    }
-
-#define FLOAT_ATTR(attr_name) \
+#define FLOAT_ATTR(pango_attr_name, attr_name) \
+  attr = pango_attr_iterator_get (iter, pango_attr_name); \
+  if (attr) \
     { \
       float value = ((PangoAttrFloat*)attr)->value; \
       g_snprintf (name, 256, #attr_name "=%g", value); \
@@ -108,7 +81,9 @@ insert_tags_for_attributes (GtkTextBuffer     *buffer,
       gtk_text_buffer_apply_tag (buffer, tag, start, end); \
     }
 
-#define RGBA_ATTR(attr_name, alpha_value) \
+#define RGBA_ATTR(pango_attr_name, attr_name) \
+  attr = pango_attr_iterator_get (iter, pango_attr_name); \
+  if (attr) \
     { \
       PangoColor *color; \
       GdkRGBA rgba; \
@@ -116,7 +91,7 @@ insert_tags_for_attributes (GtkTextBuffer     *buffer,
       rgba.red = color->red / 65535.; \
       rgba.green = color->green / 65535.; \
       rgba.blue = color->blue / 65535.; \
-      rgba.alpha = alpha_value; \
+      rgba.alpha = 1.; \
       char *str = gdk_rgba_to_string (&rgba); \
       g_snprintf (name, 256, #attr_name "=%s", str); \
       g_free (str); \
@@ -131,153 +106,63 @@ insert_tags_for_attributes (GtkTextBuffer     *buffer,
       gtk_text_buffer_apply_tag (buffer, tag, start, end); \
     }
 
-  fg_alpha = bg_alpha = 1.;
-
-  attrs = pango_attr_iterator_get_attrs (iter);
-  for (l = attrs; l; l = l->next)
+  attr = pango_attr_iterator_get (iter, PANGO_ATTR_LANGUAGE);
+  if (attr)
     {
-      PangoAttribute *attr = l->data;
-
-      switch ((int)attr->klass->type)
+      const char *language = pango_language_to_string (((PangoAttrLanguage*)attr)->value);
+      g_snprintf (name, 256, "language=%s", language);
+      tag = gtk_text_tag_table_lookup (table, name);
+      if (!tag)
         {
-        case PANGO_ATTR_FOREGROUND_ALPHA:
-          fg_alpha = ((PangoAttrInt*)attr)->value / 65535.;
-          break;
-
-        case PANGO_ATTR_BACKGROUND_ALPHA:
-          bg_alpha = ((PangoAttrInt*)attr)->value / 65535.;
-          break;
-
-        default:
-          break;
+          tag = gtk_text_tag_new (name);
+          g_object_set (tag, "language", language, NULL);
+          gtk_text_tag_table_add (table, tag);
+          g_object_unref (tag);
         }
+      gtk_text_buffer_apply_tag (buffer, tag, start, end);
     }
 
-  for (l = attrs; l; l = l->next)
+  STRING_ATTR (PANGO_ATTR_FAMILY, family)
+  INT_ATTR    (PANGO_ATTR_STYLE, style)
+  INT_ATTR    (PANGO_ATTR_WEIGHT, weight)
+  INT_ATTR    (PANGO_ATTR_VARIANT, variant)
+  INT_ATTR    (PANGO_ATTR_STRETCH, stretch)
+  INT_ATTR    (PANGO_ATTR_SIZE, size)
+
+  attr = pango_attr_iterator_get (iter, PANGO_ATTR_FONT_DESC);
+  if (attr)
     {
-      PangoAttribute *attr = l->data;
-
-      switch (attr->klass->type)
+      PangoFontDescription *desc = ((PangoAttrFontDesc*)attr)->desc;
+      char *str = pango_font_description_to_string (desc);
+      g_snprintf (name, 256, "font-desc=%s", str);
+      g_free (str);
+      tag = gtk_text_tag_table_lookup (table, name);
+      if (!tag)
         {
-        case PANGO_ATTR_LANGUAGE:
-          LANGUAGE_ATTR (language);
-          break;
-
-        case PANGO_ATTR_FAMILY:
-          STRING_ATTR (family);
-          break;
-
-        case PANGO_ATTR_STYLE:
-          INT_ATTR (style);
-          break;
-
-        case PANGO_ATTR_WEIGHT:
-          INT_ATTR (weight);
-          break;
-
-        case PANGO_ATTR_VARIANT:
-          INT_ATTR (variant);
-          break;
-
-        case PANGO_ATTR_STRETCH:
-          INT_ATTR (stretch);
-          break;
-
-        case PANGO_ATTR_SIZE:
-          INT_ATTR (size);
-          break;
-
-        case PANGO_ATTR_FONT_DESC:
-          FONT_ATTR (font-desc);
-          break;
-
-        case PANGO_ATTR_FOREGROUND:
-          RGBA_ATTR (foreground_rgba, fg_alpha);
-          break;
-
-        case PANGO_ATTR_BACKGROUND:
-          RGBA_ATTR (background_rgba, bg_alpha);
-          break;
-
-        case PANGO_ATTR_UNDERLINE:
-          INT_ATTR (underline);
-          break;
-
-        case PANGO_ATTR_UNDERLINE_COLOR:
-          RGBA_ATTR (underline_rgba, fg_alpha);
-          break;
-
-        case PANGO_ATTR_OVERLINE:
-          INT_ATTR (overline);
-          break;
-
-        case PANGO_ATTR_OVERLINE_COLOR:
-          RGBA_ATTR (overline_rgba, fg_alpha);
-          break;
-
-        case PANGO_ATTR_STRIKETHROUGH:
-          INT_ATTR (strikethrough);
-          break;
-
-        case PANGO_ATTR_STRIKETHROUGH_COLOR:
-          RGBA_ATTR (strikethrough_rgba, fg_alpha);
-          break;
-
-        case PANGO_ATTR_RISE:
-          INT_ATTR (rise);
-          break;
-
-        case PANGO_ATTR_SCALE:
-          FLOAT_ATTR (scale);
-          break;
-
-        case PANGO_ATTR_FALLBACK:
-          INT_ATTR (fallback);
-          break;
-
-        case PANGO_ATTR_LETTER_SPACING:
-          INT_ATTR (letter_spacing);
-          break;
-
-        case PANGO_ATTR_FONT_FEATURES:
-          STRING_ATTR (font_features);
-          break;
-
-        case PANGO_ATTR_ALLOW_BREAKS:
-          INT_ATTR (allow_breaks);
-          break;
-
-        case PANGO_ATTR_SHOW:
-          INT_ATTR (show_spaces);
-          break;
-
-        case PANGO_ATTR_INSERT_HYPHENS:
-          INT_ATTR (insert_hyphens);
-          break;
-
-        case PANGO_ATTR_SHAPE:
-        case PANGO_ATTR_ABSOLUTE_SIZE:
-        case PANGO_ATTR_GRAVITY:
-        case PANGO_ATTR_GRAVITY_HINT:
-        case PANGO_ATTR_FOREGROUND_ALPHA:
-        case PANGO_ATTR_BACKGROUND_ALPHA:
-          break;
-
-        case PANGO_ATTR_INVALID:
-        default:
-          g_assert_not_reached ();
-          break;
+          tag = gtk_text_tag_new (name);
+          g_object_set (tag, "font-desc", desc, NULL);
+          gtk_text_tag_table_add (table, tag);
+          g_object_unref (tag);
         }
+      gtk_text_buffer_apply_tag (buffer, tag, start, end);
     }
 
-  g_slist_free_full (attrs, (GDestroyNotify)pango_attribute_destroy);
-
-#undef LANGUAGE_ATTR
-#undef STRING_ATTR
-#undef INT_ATTR
-#undef FONT_ATTR
-#undef FLOAT_ATTR
-#undef RGBA_ATTR
+  RGBA_ATTR   (PANGO_ATTR_FOREGROUND, foreground_rgba)
+  RGBA_ATTR   (PANGO_ATTR_BACKGROUND, background_rgba)
+  INT_ATTR    (PANGO_ATTR_UNDERLINE, underline)
+  RGBA_ATTR   (PANGO_ATTR_UNDERLINE_COLOR, underline_rgba)
+  INT_ATTR    (PANGO_ATTR_OVERLINE, overline)
+  RGBA_ATTR   (PANGO_ATTR_OVERLINE_COLOR, overline_rgba)
+  INT_ATTR    (PANGO_ATTR_STRIKETHROUGH, strikethrough)
+  RGBA_ATTR   (PANGO_ATTR_STRIKETHROUGH_COLOR, strikethrough_rgba)
+  INT_ATTR    (PANGO_ATTR_RISE, rise)
+  FLOAT_ATTR  (PANGO_ATTR_SCALE, scale)
+  INT_ATTR    (PANGO_ATTR_FALLBACK, fallback)
+  INT_ATTR    (PANGO_ATTR_LETTER_SPACING, letter_spacing)
+  STRING_ATTR (PANGO_ATTR_FONT_FEATURES, font_features)
+  INT_ATTR    (PANGO_ATTR_ALLOW_BREAKS, allow_breaks)
+  INT_ATTR    (PANGO_ATTR_SHOW, show_spaces)
+  INT_ATTR    (PANGO_ATTR_INSERT_HYPHENS, insert_hyphens)
 }
 
 typedef struct
@@ -501,7 +386,7 @@ fontify (const char    *format,
   char *theme;
   gboolean prefer_dark;
   const char *style_arg;
-  char *text;
+  const char *text;
   GtkTextIter start, end;
   GBytes *bytes;
   GError *error = NULL;
@@ -553,7 +438,7 @@ fontify (const char    *format,
 
   gtk_text_buffer_get_bounds (source_buffer, &start, &end);
   text = gtk_text_buffer_get_text (source_buffer, &start, &end, TRUE);
-  bytes = g_bytes_new_take (text, strlen (text));
+  bytes = g_bytes_new_static (text, strlen (text));
 
 #ifdef HAVE_GIO_UNIX
   /* Work around https://gitlab.gnome.org/GNOME/glib/-/issues/2182 */
@@ -570,5 +455,4 @@ fontify (const char    *format,
                                   NULL,
                                   fontify_finish,
                                   g_object_ref (source_buffer));
-  g_bytes_unref (bytes);
 }

demos/gtk-demo/fontrendering.c

@@ -1,4 +1,4 @@
-/* Pango/Font Rendering
+/* Pango/Font rendering
  *
  * Demonstrates various aspects of font rendering.
  */

demos/gtk-demo/geninclude.py

@@ -6,22 +6,6 @@ import re
 import os
 from collections import *
 
-def add_quotes(s):
-    return "\"" + s.lower() + "\""
-
-def wordify(s):
-    return s.strip().rstrip(".,;:")
-
-def is_keyword(s):
-    if s == "GTK":
-      return False
-    elif s.startswith(("Gtk", "Gdk", "Pango")):
-        return True
-    elif s.startswith("G") and s[1].isupper():
-        return True
-    else:
-        return False
-
 out_file = sys.argv[1]
 in_files = sys.argv[2:]
 
@@ -35,14 +19,13 @@ struct _DemoData
 {
   const char *name;
   const char *title;
-  const char **keywords;
   const char *filename;
   GDoDemoFunc func;
   DemoData *children;
 };
 """
 
-# Demo = namedtuple('Demo', ['name', 'title', 'keywords', 'file', 'func'])
+# Demo = namedtuple('Demo', ['name', 'title', 'file', 'func'])
 
 demos = []
 
@@ -51,17 +34,14 @@ for demo_file in in_files:
     demo_name = filename.replace(".c", "")
     with open(demo_file, 'r', encoding='utf-8') as f:
         title = f.readline().replace("/*", "").strip()
-        keywords = set()
-        line = f.readline().strip();
-        while not line.endswith('*/'):
-            if line.startswith("* #Keywords:"):
-                keywords = keywords.union(set(map(wordify, line.replace ("* #Keywords:", "").strip().split(","))))
-            else:
-                keywords = keywords.union(set(filter(is_keyword, map(wordify, line.replace ("* ", "").split()))))
-            line = f.readline().strip()
+
 
     file_output += "GtkWidget *do_" + demo_name + " (GtkWidget *do_widget);\n"
-    demos.append((demo_name, title, keywords, filename, "do_" + demo_name, -1))
+    # demos += Demo(name = demo_name,
+                  # title = title,
+                  # file = demo_file,
+                  # func = "do_" + title)
+    demos.append((demo_name, title, filename, "do_" + demo_name, -1))
 
 # Generate a List of "Parent names"
 parents = []
@@ -77,7 +57,7 @@ for demo in demos:
         if not parent_name in parents:
             parents.append(parent_name)
             parent_ids.append(parent_index)
-            demos.append(("NULL", parent_name, set(), "NULL", "NULL", parent_index))
+            demos.append(("NULL", parent_name, "NULL", "NULL", parent_index))
 
         parent_index = parent_index + 1
 
@@ -91,7 +71,8 @@ for parent in parents:
     for child in demos:
         if child[1].startswith(parent + "/"):
             title = child[1][child[1].rfind('/') + 1:]
-            file_output += "  { \"" + child[0] + "\", \"" + title + "\", " + "(const char*[]) {" + ", ".join(list(map(add_quotes, child[2])) + ["NULL"]) + " }, \"" + child[3] + "\", " + child[4] + ", NULL },\n"
+            file_output += "  { \"" + child[0] + "\", \"" + title + "\", \"" + child[2] + "\", " + child[3] + ", NULL },\n"
+
 
     file_output += "  { NULL }\n};\n"
     i = i + 1
@@ -105,10 +86,9 @@ for demo in demos:
     # Do not generate one of these for demos with a parent demo
     if "/" not in demo[1]:
         child_array = "NULL"
-        name = demo[0]
-        title = demo[1]
-        keywords = demo[2]
-        file = demo[3]
+        name = demo[0];
+        title = demo[1];
+        file = demo[2]
         if name != "NULL":
             name = "\"" + name + "\""
         if title != "NULL":
@@ -116,9 +96,9 @@ for demo in demos:
         if file != "NULL":
             file = "\"" + file + "\""
 
-        if demo[5] != -1:
-            child_array = "child" + str(demo[5])
-        file_output += "  { " + name + ", " + title + ", " + "(const char*[]) {" + ", ".join(list(map(add_quotes, keywords)) + ["NULL"]) + " }, " + file + ", " + demo[4] + ", " + child_array + " },\n"
+        if demo[4] != -1:
+            child_array = "child" + str(demo[4])
+        file_output += "  { " + name + ", " + title + ", " + file + ", " + demo[3] + ", " + child_array + " },\n"
 
 file_output += "  { NULL }\n};\n"
 

demos/gtk-demo/gestures.c

@@ -1,5 +1,4 @@
 /* Gestures
- * #Keywords: GtkGesture
  *
  * Perform gestures on touchscreens and other input devices. This
  * demo reacts to long presses and swipes from all devices, plus

demos/gtk-demo/glarea.c

@@ -406,7 +406,6 @@ create_glarea_window (GtkWidget *do_widget)
   gl_area = gtk_gl_area_new ();
   gtk_widget_set_hexpand (gl_area, TRUE);
   gtk_widget_set_vexpand (gl_area, TRUE);
-  gtk_widget_set_size_request (gl_area, 100, 200);
   gtk_box_append (GTK_BOX (box), gl_area);
 
   /* We need to initialize and free GL resources, so we use

demos/gtk-demo/glowingstars.glsl

@@ -1,174 +0,0 @@
-// Originally from: https://www.shadertoy.com/view/ttBcRV
-// License CC0: Flying through glowing stars
-//  The result of playing around trying to improve an old shader
-
-#define PI              3.141592654
-#define TAU             (2.0*PI)
-#define TIME            iTime
-#define RESOLUTION      iResolution
-
-#define LESS(a,b,c)     mix(a,b,step(0.,c))
-#define SABS(x,k)       LESS((.5/(k))*(x)*(x)+(k)*.5,abs(x),abs(x)-(k))
-
-#define MROT(a) mat2(cos(a), sin(a), -sin(a), cos(a))
-
-vec3 hsv2rgb(vec3 c) {
-  const vec4 K = vec4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);
-  vec3 p = abs(fract(c.xxx + K.xyz) * 6.0 - K.www);
-  return c.z * mix(K.xxx, clamp(p - K.xxx, 0.0, 1.0), c.y);
-}
-
-float hash(in vec3 co) {
-  return fract(sin(dot(co, vec3(12.9898,58.233, 12.9898+58.233))) * 13758.5453);
-}
-
-float starn(vec2 p, float r, int n, float m) {
-  // From IQ: https://www.shadertoy.com/view/3tSGDy
-  // https://iquilezles.org/www/articles/distfunctions2d/distfunctions2d.htm
-
-  // Minor tweak to use SABS over abs to smooth inner corners
-  // SABS: https://www.shadertoy.com/view/Ws2SDK
-
-  // next 4 lines can be precomputed for a given shape
-  float an = 3.141593/float(n);
-  float en = 3.141593/m;  // m is between 2 and n
-  vec2  acs = vec2(cos(an),sin(an));
-  vec2  ecs = vec2(cos(en),sin(en)); // ecs=vec2(0,1) for regular polygon,
-
-  float bn = mod(atan(p.x,p.y),2.0*an) - an;
-  p = length(p)*vec2(cos(bn),SABS(sin(bn), 0.15));
-  p -= r*acs;
-  p += ecs*clamp( -dot(p,ecs), 0.0, r*acs.y/ecs.y);
-  return length(p)*sign(p.x);
-}
-
-vec4 alphaBlend(vec4 back, vec4 front) {
-  vec3 xyz = mix(back.xyz*back.w, front.xyz, front.w);
-  float w = mix(back.w, 1.0, front.w);
-  return vec4(xyz, w);
-}
-
-void rot(inout vec2 p, float a) {
-  float c = cos(a);
-  float s = sin(a);
-  p = vec2(c*p.x + s*p.y, -s*p.x + c*p.y);
-}
-
-vec3 offset(float z) {
-  float a = z;
-  vec2 p = -0.075*(vec2(cos(a), sin(a*sqrt(2.0))) + vec2(cos(a*sqrt(0.75)), sin(a*sqrt(0.5))));
-  return vec3(p, z);
-}
-
-vec3 doffset(float z) {
-  float eps = 0.05;
-  return 0.5*(offset(z + eps) - offset(z - eps))/eps;
-}
-
-vec3 ddoffset(float z) {
-  float eps = 0.05;
-  return 0.5*(doffset(z + eps) - doffset(z - eps))/eps;
-}
-
-vec4 planeCol(vec3 ro, vec3 rd, float n, vec3 pp) {
-  const float s = 0.5;
-
-  vec2 p = pp.xy;
-  float z = pp.z;
-  vec2 dpy = dFdy(p);
-  float aa = length(dpy);
-
-  p -= (1.0+5.0*(pp.z - ro.z))*offset(z).xy;
-
-  p *= s;
-  float r = hash(vec3(floor(p+0.5), n));
-  p = fract(p+0.5)-0.5;
-  rot(p, ((TAU*r+n)*0.25));
-  float d = starn(p, 0.20, 3 + 2*int(3.0*r), 3.0);
-  d -= 0.06;
-  d/=s;
-
-  float ds = -d+0.03;
-  vec3 cols = hsv2rgb(vec3(337.0/360.0+0.1*sin(n*0.3), 0.8, 0.54+0.2*sin(n*0.3)));
-  float ts = 1.0 - smoothstep(-aa, 0.0, ds);
-  vec4 cs =  vec4(cols, ts*0.93);
-
-  float db = abs(d) - (0.06);
-  db = abs(db) - 0.03;
-  db = abs(db) - 0.00;
-  db = max(db, -d+0.03);
-    vec3 colb = vec3(1.0, 0.7, 0.5);
-  float tb = exp(-(db)*30.0*(1.0 - 10.0*aa));
-  vec4 cb = vec4(1.5*colb, tb);
-
-  vec4 ct = alphaBlend(cs, cb);
-
-  return ct;
-}
-
-vec3 color(vec3 ww, vec3 uu, vec3 vv, vec3 ro, vec2 p) {
-  vec3 rd = normalize(p.x*uu + p.y*vv + (2.0-tanh(length(p)))*ww);
-
-  vec4 col = vec4(vec3(0.0), 1.0);
-
-  const float planeDist = 1.0;
-  const int furthest = 6;
-  const int fadeFrom = furthest-3;
-
-  float nz = floor(ro.z / planeDist);
-
-  for (int i = furthest; i >= 1; --i) {
-    float pz = planeDist*nz + planeDist*float(i);
-
-    float pd = (pz - ro.z)/rd.z;
-
-    if (pd > 0.0) {
-      vec3 pp = ro + rd*pd;
-
-      vec4 pcol = planeCol(ro, rd, nz+float(i), pp);
-      float fadeIn = 1.0-smoothstep(planeDist*float(fadeFrom), planeDist*float(furthest), pp.z-ro.z);
-      pcol.xyz *= sqrt(fadeIn);
-
-      col = alphaBlend(col, pcol);
-    }
-  }
-
-  return col.xyz*col.w;
-}
-
-vec3 postProcess(vec3 col, vec2 q)  {
-  col=pow(clamp(col,0.0,1.0),vec3(0.75));
-  col=col*0.6+0.4*col*col*(3.0-2.0*col);
-  col=mix(col, vec3(dot(col, vec3(0.33))), -0.4);
-  col*=0.5+0.5*pow(19.0*q.x*q.y*(1.0-q.x)*(1.0-q.y),0.7);
-  return col;
-}
-
-vec3 effect(vec2 p, vec2 q) {
-  float tm = TIME*0.65;
-
-  vec3 ro   = offset(tm);
-  vec3 dro  = doffset(tm);
-  vec3 ddro = ddoffset(tm);
-
-  vec3 ww = normalize(dro);
-  vec3 uu = normalize(cross(vec3(0.0,1.0,0.0)+1.5*ddro, ww));
-  vec3 vv = normalize(cross(ww, uu));
-
-  vec3 col = color(ww, uu, vv, ro, p);
-  col = postProcess(col, q);
-
-  const float fadeIn = 2.0;
-
-  return col*smoothstep(0.0, fadeIn, TIME);
-}
-
-void mainImage(out vec4 fragColor, vec2 fragCoord) {
-  vec2 q = fragCoord/RESOLUTION.xy;
-  vec2 p = -1. + 2. * q;
-  p.x *= RESOLUTION.x/RESOLUTION.y;
-
-  vec3 col = effect(p, q);
-
-  fragColor = vec4(col, 1.0);
-}

demos/gtk-demo/gltransition.c

@@ -1,351 +0,0 @@
-/* OpenGL/Transitions and Effects
- * #Keywords: OpenGL, shader, effect
- *
- * Create transitions between pages using a custom fragment shader.
- *
- * The example transitions here are taken from gl-transitions.com, and you
- * can edit the shader code itself on the last page of the stack.
- *
- * The transitions work with arbitrary content. We use images, shaders
- * GL areas and plain old widgets to demonstrate this.
- *
- * The demo also shows some over-the-top effects like wobbly widgets,
- * and animated backgrounds.
- */
-
-#include <math.h>
-#include <gtk/gtk.h>
-#include "gtkshaderstack.h"
-#include "gtkshaderbin.h"
-#include "gtkshadertoy.h"
-#include "gskshaderpaintable.h"
-
-static GtkWidget *demo_window = NULL;
-
-static void
-close_window (GtkWidget *widget)
-{
-  /* Reset the state */
-  demo_window = NULL;
-}
-
-static void
-text_changed (GtkTextBuffer *buffer,
-              GtkWidget     *button)
-{
-  gtk_widget_show (button);
-}
-
-static void
-apply_text (GtkWidget     *button,
-            GtkTextBuffer *buffer)
-{
-  GtkWidget *stack;
-  GskGLShader *shader;
-  GtkTextIter start, end;
-  char *text;
-
-  stack = g_object_get_data (G_OBJECT (button), "the-stack");
-
-  gtk_text_buffer_get_bounds (buffer, &start, &end);
-  text = gtk_text_buffer_get_text (buffer, &start, &end, TRUE);
-
-  GBytes *bytes = g_bytes_new_take (text, strlen (text));
-  shader = gsk_gl_shader_new_from_bytes (bytes);
-
-  gtk_shader_stack_set_shader (GTK_SHADER_STACK (stack), shader);
-
-  g_object_unref (shader);
-  g_bytes_unref (bytes);
-
-  gtk_widget_hide (button);
-}
-
-static void
-go_back (GtkWidget     *button,
-         GtkWidget     *stack)
-{
-  gtk_shader_stack_transition (GTK_SHADER_STACK (stack), FALSE);
-}
-
-static void
-go_forward (GtkWidget     *button,
-            GtkWidget     *stack)
-{
-  gtk_shader_stack_transition (GTK_SHADER_STACK (stack), TRUE);
-}
-
-static void
-clicked_cb (GtkGestureClick *gesture,
-            guint            n_pressed,
-            double           x,
-            double           y,
-            gpointer         data)
-{
-  gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED);
-}
-
-static GtkWidget *
-ripple_bin_new (void)
-{
-  GtkWidget *bin = gtk_shader_bin_new ();
-  static GskGLShader *shader = NULL;
-
-  if (shader == NULL)
-    shader = gsk_gl_shader_new_from_resource ("/gltransition/ripple.glsl");
-
-  gtk_shader_bin_add_shader (GTK_SHADER_BIN (bin), shader, GTK_STATE_FLAG_PRELIGHT, GTK_STATE_FLAG_PRELIGHT, 20);
-
-  return bin;
-}
-
-static GtkWidget *
-new_shadertoy (const char *path)
-{
-  GBytes *shader;
-  GtkWidget *toy;
-
-  toy = gtk_shadertoy_new ();
-  shader = g_resources_lookup_data (path, 0, NULL);
-  gtk_shadertoy_set_image_shader (GTK_SHADERTOY (toy),
-                                  g_bytes_get_data (shader, NULL));
-  g_bytes_unref (shader);
-
-  return toy;
-}
-
-static gboolean
-update_paintable (GtkWidget     *widget,
-                  GdkFrameClock *frame_clock,
-                  gpointer       user_data)
-{
-  GskShaderPaintable *paintable;
-  gint64 frame_time;
-
-  paintable = GSK_SHADER_PAINTABLE (gtk_picture_get_paintable (GTK_PICTURE (widget)));
-  frame_time = gdk_frame_clock_get_frame_time (frame_clock);
-  gsk_shader_paintable_update_time (paintable, 0, frame_time);
-
-  return G_SOURCE_CONTINUE;
-}
-
-static GtkWidget *
-make_shader_stack (const char *name,
-                   const char *resource_path,
-                   int active_child,
-                   GtkWidget  *scale)
-{
-  GtkWidget *stack, *child, *widget, *vbox, *hbox, *bin;
-  GtkWidget *label, *button, *tv;
-  GskGLShader *shader;
-  GObjectClass *class;
-  GParamSpecFloat *pspec;
-  GtkAdjustment *adjustment;
-  GtkTextBuffer *buffer;
-  GBytes *bytes;
-  GtkEventController *controller;
-  GtkCssProvider *provider;
-  GdkPaintable *paintable;
-
-  stack = gtk_shader_stack_new ();
-  shader = gsk_gl_shader_new_from_resource (resource_path);
-  gtk_shader_stack_set_shader (GTK_SHADER_STACK (stack), shader);
-  g_object_unref (shader);
-
-  child = gtk_picture_new_for_resource ("/css_blendmodes/ducky.png");
-  gtk_picture_set_can_shrink (GTK_PICTURE (child), TRUE);
-  gtk_shader_stack_add_child (GTK_SHADER_STACK (stack), child);
-
-  shader = gsk_gl_shader_new_from_resource ("/gltransition/cogs2.glsl");
-  paintable = gsk_shader_paintable_new (shader, NULL);
-
-  child = gtk_picture_new_for_paintable (paintable);
-  gtk_widget_add_tick_callback (child, update_paintable, NULL, NULL);
-  gtk_picture_set_can_shrink (GTK_PICTURE (child), TRUE);
-  gtk_shader_stack_add_child (GTK_SHADER_STACK (stack), child);
-
-  child = gtk_picture_new_for_resource ("/transparent/portland-rose.jpg");
-  gtk_picture_set_can_shrink (GTK_PICTURE (child), TRUE);
-  gtk_shader_stack_add_child (GTK_SHADER_STACK (stack), child);
-
-  child = new_shadertoy ("/shadertoy/neon.glsl");
-  gtk_shader_stack_add_child (GTK_SHADER_STACK (stack), child);
-
-  child = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
-
-  class = g_type_class_ref (GTK_TYPE_SHADER_STACK);
-  pspec = G_PARAM_SPEC_FLOAT (g_object_class_find_property (class, "duration"));
-
-  adjustment = gtk_range_get_adjustment (GTK_RANGE (scale));
-  if (gtk_adjustment_get_lower (adjustment) == 0.0 &&
-      gtk_adjustment_get_upper (adjustment) == 0.0)
-    {
-      gtk_adjustment_configure (adjustment,
-                                pspec->default_value,
-                                pspec->minimum,
-                                pspec->maximum,
-                                0.1, 0.5, 0);
-    }
-
-  g_type_class_unref (class);
-
-  g_object_bind_property (adjustment, "value",
-                          stack, "duration",
-                          G_BINDING_DEFAULT);
-
-  widget = gtk_scrolled_window_new ();
-  gtk_scrolled_window_set_has_frame (GTK_SCROLLED_WINDOW (widget), TRUE);
-  gtk_widget_set_hexpand (widget, TRUE);
-  gtk_widget_set_vexpand (widget, TRUE);
-
-  controller = GTK_EVENT_CONTROLLER (gtk_gesture_click_new ());
-  gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (controller), 0);
-  g_signal_connect (controller, "released", G_CALLBACK (clicked_cb), NULL);
-  gtk_event_controller_set_propagation_phase (controller, GTK_PHASE_BUBBLE);
-  gtk_widget_add_controller (GTK_WIDGET (widget), controller);
-
-  tv = gtk_text_view_new ();
-  gtk_text_view_set_left_margin (GTK_TEXT_VIEW (tv), 4);
-  gtk_text_view_set_right_margin (GTK_TEXT_VIEW (tv), 4);
-  gtk_text_view_set_top_margin (GTK_TEXT_VIEW (tv), 4);
-  gtk_text_view_set_bottom_margin (GTK_TEXT_VIEW (tv), 4);
-  buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (tv));
-  bytes = g_resources_lookup_data (resource_path, 0, NULL);
-  gtk_text_buffer_set_text (buffer,
-                            (const char *)g_bytes_get_data (bytes, NULL),
-                            g_bytes_get_size (bytes));
-  g_bytes_unref (bytes);
-  gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (widget), tv);
-
-  gtk_box_append (GTK_BOX (child), widget);
-
-  gtk_shader_stack_add_child (GTK_SHADER_STACK (stack), child);
-
-  gtk_shader_stack_set_active (GTK_SHADER_STACK (stack), active_child);
-
-  vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
-
-  widget = gtk_center_box_new ();
-  label = gtk_label_new (name);
-  gtk_widget_add_css_class (label, "title-4");
-  gtk_widget_set_size_request (label, -1, 26);
-  gtk_center_box_set_center_widget (GTK_CENTER_BOX (widget), label);
-
-  button = gtk_button_new_from_icon_name ("view-refresh-symbolic");
-  g_signal_connect (buffer, "changed", G_CALLBACK (text_changed), button);
-  g_object_set_data (G_OBJECT (button), "the-stack", stack);
-  g_signal_connect (button, "clicked", G_CALLBACK (apply_text), buffer);
-  provider = gtk_css_provider_new ();
-  gtk_css_provider_load_from_data (provider, "button.small { padding: 0; }", -1);
-  gtk_style_context_add_provider (gtk_widget_get_style_context (button),
-                                  GTK_STYLE_PROVIDER (provider),
-                                  GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
-  g_object_unref (provider);
-  gtk_widget_set_halign (button, GTK_ALIGN_CENTER);
-  gtk_widget_set_valign (button, GTK_ALIGN_CENTER);
-  gtk_widget_add_css_class (button, "small");
-  gtk_widget_hide (button);
-  gtk_center_box_set_end_widget (GTK_CENTER_BOX (widget), button);
-
-  gtk_box_append (GTK_BOX (vbox), widget);
-
-  GtkWidget *bin2 = ripple_bin_new ();
-  gtk_shader_bin_set_child (GTK_SHADER_BIN (bin2), stack);
-
-  gtk_box_append (GTK_BOX (vbox), bin2);
-
-  hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
-  gtk_widget_set_halign (hbox, GTK_ALIGN_CENTER);
-
-  gtk_box_append (GTK_BOX (vbox), hbox);
-
-  button = gtk_button_new_from_icon_name ("go-previous-symbolic");
-  g_signal_connect (button, "clicked", G_CALLBACK (go_back), stack);
-  bin = ripple_bin_new ();
-  gtk_shader_bin_set_child (GTK_SHADER_BIN (bin), button);
-  gtk_box_append (GTK_BOX (hbox), bin);
-
-  button = gtk_button_new_from_icon_name ("go-next-symbolic");
-  g_signal_connect (button, "clicked", G_CALLBACK (go_forward), stack);
-  bin = ripple_bin_new ();
-  gtk_shader_bin_set_child (GTK_SHADER_BIN (bin), button);
-  gtk_box_append (GTK_BOX (hbox), bin);
-
-  return vbox;
-}
-
-static GtkWidget *
-create_gltransition_window (GtkWidget *do_widget)
-{
-  GtkWidget *window, *headerbar, *scale, *outer_grid, *grid, *background;
-  GdkPaintable *paintable;
-
-  window = gtk_window_new ();
-  gtk_window_set_display (GTK_WINDOW (window),  gtk_widget_get_display (do_widget));
-  gtk_window_set_title (GTK_WINDOW (window), "Transitions and Effects");
-  headerbar = gtk_header_bar_new ();
-  scale = gtk_scale_new (GTK_ORIENTATION_HORIZONTAL, NULL);
-  gtk_scale_set_draw_value (GTK_SCALE (scale), FALSE);
-  gtk_widget_set_size_request (scale, 100, -1);
-  gtk_widget_set_tooltip_text (scale, "Transition duration");
-  gtk_header_bar_pack_end (GTK_HEADER_BAR (headerbar), scale);
-  gtk_window_set_titlebar (GTK_WINDOW (window), headerbar);
-  gtk_window_set_default_size (GTK_WINDOW (window), 800, 600);
-  g_signal_connect (window, "destroy", G_CALLBACK (close_window), NULL);
-
-  outer_grid = gtk_grid_new ();
-  gtk_window_set_child (GTK_WINDOW (window), outer_grid);
-
-  paintable = gsk_shader_paintable_new (gsk_gl_shader_new_from_resource ("/gltransition/background.glsl"), NULL);
-  background = gtk_picture_new_for_paintable (paintable);
-  gtk_widget_add_tick_callback (background, update_paintable, NULL, NULL);
-
-  gtk_grid_attach (GTK_GRID (outer_grid),
-                   background,
-                   0, 0, 1, 1);
-
-  grid = gtk_grid_new ();
-  gtk_grid_attach (GTK_GRID (outer_grid),
-                   grid,
-                   0, 0, 1, 1);
-
-  gtk_widget_set_halign (grid, GTK_ALIGN_CENTER);
-  gtk_widget_set_valign (grid, GTK_ALIGN_CENTER);
-  gtk_widget_set_margin_start (grid, 12);
-  gtk_widget_set_margin_end (grid, 12);
-  gtk_widget_set_margin_top (grid, 12);
-  gtk_widget_set_margin_bottom (grid, 12);
-  gtk_grid_set_row_spacing (GTK_GRID (grid), 6);
-  gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
-  gtk_grid_set_row_homogeneous (GTK_GRID (grid), TRUE);
-  gtk_grid_set_column_homogeneous (GTK_GRID (grid), TRUE);
-
-  gtk_grid_attach (GTK_GRID (grid),
-                   make_shader_stack ("Wind", "/gltransition/wind.glsl", 0, scale),
-                   0, 0, 1, 1);
-  gtk_grid_attach (GTK_GRID (grid),
-                   make_shader_stack ("Radial", "/gltransition/radial.glsl", 1, scale),
-                   1, 0, 1, 1);
-  gtk_grid_attach (GTK_GRID (grid),
-                   make_shader_stack ("Crosswarp", "/gltransition/crosswarp.glsl", 2, scale),
-                   0, 1, 1, 1);
-  gtk_grid_attach (GTK_GRID (grid),
-                   make_shader_stack ("Kaleidoscope", "/gltransition/kaleidoscope.glsl", 3, scale),
-                   1, 1, 1, 1);
-
-  return window;
-}
-
-GtkWidget *
-do_gltransition (GtkWidget *do_widget)
-{
-  if (!demo_window)
-    demo_window = create_gltransition_window (do_widget);
-
-  if (!gtk_widget_get_visible (demo_window))
-    gtk_widget_show (demo_window);
-  else
-    gtk_window_destroy (GTK_WINDOW (demo_window));
-
-  return demo_window;
-}

demos/gtk-demo/gskshaderpaintable.c

@@ -1,337 +0,0 @@
-/*
- * Copyright © 2020 Red Hat, Inc
- *
- * 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 2.1 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/>.
- *
- * Authors: Matthias Clasen <mclasen@redhat.com>
- */
-
-#include "config.h"
-
-#include <gtk/gtk.h>
-#include "gskshaderpaintable.h"
-
-/**
- * SECTION:gskshaderpaintable
- * @Short_description: Drawing with shaders
- * @Title: GskShaderPaintable
- * @see_also: #GdkPaintable
- *
- * GskShaderPaintable is an implementation of the #GdkPaintable interface
- * that uses a #GskGLShader to create pixels.
- *
- * You can set the uniform data that the shader needs for rendering
- * using gsk_shader_paintable_set_args(). This function can
- * be called repeatedly to change the uniform data for the next
- * snapshot.
- *
- * Commonly, time is passed to shaders as a float uniform containing
- * the elapsed time in seconds. The convenience API
- * gsk_shader_paintable_update_time() can be called from a #GtkTickCallback
- * to update the time based on the frame time of the frame clock.
- */
-
-
-struct _GskShaderPaintable
-{
-  GObject parent_instance;
-
-  GskGLShader *shader;
-  GBytes *args;
-
-  gint64 start_time;
-};
-
-struct _GskShaderPaintableClass
-{
-  GObjectClass parent_class;
-};
-
-enum {
-  PROP_0,
-  PROP_SHADER,
-  PROP_ARGS,
-
-  N_PROPS,
-};
-
-static GParamSpec *properties[N_PROPS] = { NULL, };
-
-static void
-gsk_shader_paintable_paintable_snapshot (GdkPaintable *paintable,
-                                         GdkSnapshot  *snapshot,
-                                         double        width,
-                                         double        height)
-{
-  GskShaderPaintable *self = GSK_SHADER_PAINTABLE (paintable);
-
-  gtk_snapshot_push_gl_shader (snapshot, self->shader, &GRAPHENE_RECT_INIT(0, 0, width, height), g_bytes_ref (self->args));
-  gtk_snapshot_pop (snapshot);
-}
-
-static void
-gsk_shader_paintable_paintable_init (GdkPaintableInterface *iface)
-{
-  iface->snapshot = gsk_shader_paintable_paintable_snapshot;
-}
-
-G_DEFINE_TYPE_EXTENDED (GskShaderPaintable, gsk_shader_paintable, G_TYPE_OBJECT, 0,
-                        G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
-                                               gsk_shader_paintable_paintable_init))
-
-static void
-gsk_shader_paintable_set_property (GObject      *object,
-                                   guint         prop_id,
-                                   const GValue *value,
-                                   GParamSpec   *pspec)
-
-{
-  GskShaderPaintable *self = GSK_SHADER_PAINTABLE (object);
-
-  switch (prop_id)
-    {
-    case PROP_SHADER:
-      gsk_shader_paintable_set_shader (self, g_value_get_object (value));
-      break;
-
-    case PROP_ARGS:
-      gsk_shader_paintable_set_args (self, g_value_get_boxed (value));
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-gsk_shader_paintable_get_property (GObject    *object,
-                                   guint       prop_id,
-                                   GValue     *value,
-                                   GParamSpec *pspec)
-{
-  GskShaderPaintable *self = GSK_SHADER_PAINTABLE (object);
-
-  switch (prop_id)
-    {
-    case PROP_SHADER:
-      g_value_set_object (value, self->shader);
-      break;
-
-    case PROP_ARGS:
-      g_value_set_boxed (value, self->args);
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-gsk_shader_paintable_finalize (GObject *object)
-{
-  GskShaderPaintable *self = GSK_SHADER_PAINTABLE (object);
-
-  g_clear_pointer (&self->args, g_bytes_unref);
-  g_clear_object (&self->shader);
-
-  G_OBJECT_CLASS (gsk_shader_paintable_parent_class)->finalize (object);
-}
-
-static void
-gsk_shader_paintable_class_init (GskShaderPaintableClass *klass)
-{
-  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
-
-  gobject_class->get_property = gsk_shader_paintable_get_property;
-  gobject_class->set_property = gsk_shader_paintable_set_property;
-  gobject_class->finalize = gsk_shader_paintable_finalize;
-
-  properties[PROP_SHADER] =
-    g_param_spec_object ("shader", "Shader", "The shader",
-                         GSK_TYPE_GL_SHADER,
-                         G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
-
-  properties[PROP_ARGS] =
-    g_param_spec_boxed ("args", "Arguments", "The uniform arguments",
-                        G_TYPE_BYTES,
-                        G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
-
-  g_object_class_install_properties (gobject_class, N_PROPS, properties);
-}
-
-static void
-gsk_shader_paintable_init (GskShaderPaintable *self)
-{
-}
-
-/**
- * gsk_shader_paintable_new:
- * @shader: (transfer full) (nullable): the shader to use
- * @data: (transfer full) (nullable): uniform data
- *
- * Creates a paintable that uses the @shader to create
- * pixels. The shader must not require input textures.
- * If @data is %NULL, all uniform values are set to zero.
- *
- * Returns: (transfer full): a new #GskShaderPaintable
- */
-GdkPaintable *
-gsk_shader_paintable_new (GskGLShader *shader,
-                          GBytes      *data)
-{
-  GdkPaintable *ret;
-
-  g_return_val_if_fail (shader == NULL || GSK_IS_GL_SHADER (shader), NULL);
-
-  if (shader && !data)
-    {
-      int size = gsk_gl_shader_get_args_size (shader);
-      data = g_bytes_new_take (g_new0 (guchar, size), size);
-    }
-
-  ret = g_object_new (GSK_TYPE_SHADER_PAINTABLE,
-                      "shader", shader,
-                      "args", data,
-                      NULL);
-
-  g_clear_object (&shader);
-  g_clear_pointer (&data, g_bytes_unref);
-
-  return ret;
-}
-
-/**
- * gsk_shader_paintable_set_shader:
- * @self: a #GskShaderPaintable
- * @shader: the #GskGLShader to use
- *
- * Sets the shader that the paintable will use
- * to create pixels. The shader must not require
- * input textures.
- */
-void
-gsk_shader_paintable_set_shader (GskShaderPaintable *self,
-                                 GskGLShader        *shader)
-{
-  g_return_if_fail (GSK_IS_SHADER_PAINTABLE (self));
-  g_return_if_fail (shader == NULL || GSK_IS_GL_SHADER (shader));
-  g_return_if_fail (shader == NULL || gsk_gl_shader_get_n_textures (shader) == 0);
-
-  if (!g_set_object (&self->shader, shader))
-    return;
-
-  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_SHADER]);
-  gdk_paintable_invalidate_contents (GDK_PAINTABLE (self));
-
-  g_clear_pointer (&self->args, g_bytes_unref);
-}
-
-/**
- * gsk_shader_paintable_get_shader:
- * @self: a #GskShaderPaintable
- *
- * Returns the shader that the paintable is using.
- *
- * Returns: (transfer none): the #GskGLShader that is used
- */
-GskGLShader *
-gsk_shader_paintable_get_shader (GskShaderPaintable *self)
-{
-  g_return_val_if_fail (GSK_IS_SHADER_PAINTABLE (self), NULL);
-
-  return self->shader;
-}
-
-/**
- * gsk_shader_paintable_set_args:
- * @self: a #GskShaderPaintable
- * @data: Data block with uniform data for the shader
- *
- * Sets the uniform data that will be passed to the
- * shader when rendering. The @data will typically
- * be produced by a #GskUniformDataBuilder.
- *
- * Note that the @data should be considered immutable
- * after it has been passed to this function.
- */
-void
-gsk_shader_paintable_set_args (GskShaderPaintable *self,
-                                       GBytes             *data)
-{
-  g_return_if_fail (GSK_IS_SHADER_PAINTABLE (self));
-  g_return_if_fail (data == NULL || g_bytes_get_size (data) == gsk_gl_shader_get_args_size (self->shader));
-
-  g_clear_pointer (&self->args, g_bytes_unref);
-  if (data)
-    self->args = g_bytes_ref (data);
-
-  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ARGS]);
-  gdk_paintable_invalidate_contents (GDK_PAINTABLE (self));
-}
-
-/**
- * gsk_shader_paintable_get_args:
- * @self: a #GskShaderPaintable
- *
- * Returns the uniform data set with
- * gsk_shader_paintable_get_args().
- *
- * Returns: (transfer none): the uniform data
- */
-GBytes *
-gsk_shader_paintable_get_args (GskShaderPaintable *self)
-{
-  g_return_val_if_fail (GSK_IS_SHADER_PAINTABLE (self), NULL);
-
-  return self->args;
-}
-
-/**
- * gsk_shader_paintable_update_time:
- * @self: a #GskShaderPaintable
- * @time_idx: the index of the uniform for time in seconds as float
- * @frame_time: the current frame time, as returned by #GdkFrameClock
- *
- * This function is a convenience wrapper for
- * gsk_shader_paintable_set_args() that leaves all
- * uniform values unchanged, except for the uniform with
- * index @time_idx, which will be set to the elapsed time
- * in seconds, since the first call to this function.
- *
- * This function is usually called from a #GtkTickCallback.
- */
-void
-gsk_shader_paintable_update_time (GskShaderPaintable *self,
-                                  int                 time_idx,
-                                  gint64              frame_time)
-{
-  GskShaderArgsBuilder *builder;
-  GBytes *args;
-  float time;
-
-  if (self->start_time == 0)
-    self->start_time = frame_time;
-
-  time = (frame_time - self->start_time) / (float)G_TIME_SPAN_SECOND;
-
-  builder = gsk_shader_args_builder_new (self->shader, self->args);
-  gsk_shader_args_builder_set_float (builder, time_idx, time);
-  args = gsk_shader_args_builder_free_to_args (builder);
-
-  gsk_shader_paintable_set_args (self, args);
-
-  g_bytes_unref (args);
-}

demos/gtk-demo/gskshaderpaintable.h

@@ -1,53 +0,0 @@
-/*
- * Copyright © 2020 Red Hat, Inc.
- *
- * 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 2.1 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/>.
- *
- * Authors: Matthias Clasen <mclasen@redhat.com>
- */
-
-#ifndef __GSK_SHADER_PAINTABLE_H__
-#define __GSK_SHADER_PAINTABLE_H__
-
-#include <gdk/gdk.h>
-#include <gsk/gsk.h>
-
-G_BEGIN_DECLS
-
-#define GSK_TYPE_SHADER_PAINTABLE (gsk_shader_paintable_get_type ())
-
-GDK_AVAILABLE_IN_ALL
-G_DECLARE_FINAL_TYPE (GskShaderPaintable, gsk_shader_paintable, GSK, SHADER_PAINTABLE, GObject)
-
-GDK_AVAILABLE_IN_ALL
-GdkPaintable *   gsk_shader_paintable_new              (GskGLShader        *shader,
-                                                        GBytes             *data);
-
-GDK_AVAILABLE_IN_ALL
-GskGLShader *    gsk_shader_paintable_get_shader       (GskShaderPaintable *self);
-GDK_AVAILABLE_IN_ALL
-void             gsk_shader_paintable_set_shader       (GskShaderPaintable *self,
-                                                        GskGLShader        *shader);
-GDK_AVAILABLE_IN_ALL
-GBytes *         gsk_shader_paintable_get_args         (GskShaderPaintable *self);
-GDK_AVAILABLE_IN_ALL
-void             gsk_shader_paintable_set_args         (GskShaderPaintable *self,
-                                                        GBytes             *data);
-GDK_AVAILABLE_IN_ALL
-void             gsk_shader_paintable_update_time      (GskShaderPaintable *self,
-                                                        int                 time_idx,
-                                                        gint64              frame_time);
-G_END_DECLS
-
-#endif /* __GSK_SHADER_PAINTABLE_H__ */

demos/gtk-demo/gtkfishbowl.c

@@ -179,9 +179,6 @@ gtk_fishbowl_add (GtkFishbowl *fishbowl,
   child_info->dy = new_speed ();
 
   gtk_widget_set_parent (widget, GTK_WIDGET (fishbowl));
-  gtk_accessible_update_state (GTK_ACCESSIBLE (widget),
-                               GTK_ACCESSIBLE_STATE_HIDDEN, TRUE,
-                               -1);
 
   g_hash_table_insert (priv->children, widget, child_info);
   priv->count++;
@@ -345,8 +342,6 @@ gtk_fishbowl_class_init (GtkFishbowlClass *klass)
                           G_PARAM_READWRITE);
 
   g_object_class_install_properties (object_class, NUM_PROPERTIES, props);
-
-  gtk_widget_class_set_accessible_role (widget_class, GTK_ACCESSIBLE_ROLE_PRESENTATION);
 }
 
 guint

demos/gtk-demo/gtkgears.c

@@ -764,7 +764,7 @@ gtk_gears_realize (GtkWidget *widget)
   glShaderSource(v, 1, &p, NULL);
   glCompileShader(v);
   glGetShaderInfoLog(v, sizeof msg, NULL, msg);
-  g_debug ("vertex shader info: %s\n", msg);
+  g_print ("vertex shader info: %s\n", msg);
 
   /* Compile the fragment shader */
   if (gdk_gl_context_get_use_es (context))
@@ -775,7 +775,7 @@ gtk_gears_realize (GtkWidget *widget)
   glShaderSource(f, 1, &p, NULL);
   glCompileShader(f);
   glGetShaderInfoLog(f, sizeof msg, NULL, msg);
-  g_debug ("fragment shader info: %s\n", msg);
+  g_print ("fragment shader info: %s\n", msg);
 
   /* Create and link the shader program */
   program = glCreateProgram();
@@ -786,7 +786,7 @@ gtk_gears_realize (GtkWidget *widget)
 
   glLinkProgram(program);
   glGetProgramInfoLog(program, sizeof msg, NULL, msg);
-  g_debug ("program info: %s\n", msg);
+  g_print ("program info: %s\n", msg);
   glDeleteShader (v);
   glDeleteShader (f);
 

demos/gtk-demo/gtkshaderbin.c

@@ -1,264 +0,0 @@
-#include "gtkshaderbin.h"
-
-typedef struct {
-  GskGLShader *shader;
-  GtkStateFlags state;
-  GtkStateFlags state_mask;
-  float extra_border;
-  gboolean compiled;
-  gboolean compiled_ok;
-} ShaderInfo;
-
-struct _GtkShaderBin
-{
-  GtkWidget parent_instance;
-  GtkWidget *child;
-  ShaderInfo *active_shader;
-  GPtrArray *shaders;
-  guint tick_id;
-  float time;
-  float mouse_x, mouse_y;
-  gint64 first_frame_time;
-};
-
-struct _GtkShaderBinClass
-{
-  GtkWidgetClass parent_class;
-};
-
-G_DEFINE_TYPE (GtkShaderBin, gtk_shader_bin, GTK_TYPE_WIDGET)
-
-static void
-shader_info_free (ShaderInfo *info)
-{
-  g_object_unref (info->shader);
-  g_free (info);
-}
-
-static void
-gtk_shader_bin_finalize (GObject *object)
-{
-  GtkShaderBin *self = GTK_SHADER_BIN (object);
-
-  g_ptr_array_free (self->shaders, TRUE);
-
-  G_OBJECT_CLASS (gtk_shader_bin_parent_class)->finalize (object);
-}
-
-static void
-gtk_shader_bin_dispose (GObject *object)
-{
-  GtkShaderBin *self = GTK_SHADER_BIN (object);
-
-  g_clear_pointer (&self->child, gtk_widget_unparent);
-
-  G_OBJECT_CLASS (gtk_shader_bin_parent_class)->dispose (object);
-}
-
-static gboolean
-gtk_shader_bin_tick (GtkWidget     *widget,
-                     GdkFrameClock *frame_clock,
-                     gpointer       unused)
-{
-  GtkShaderBin *self = GTK_SHADER_BIN (widget);
-  gint64 frame_time;
-
-  frame_time = gdk_frame_clock_get_frame_time (frame_clock);
-  if (self->first_frame_time == 0)
-    self->first_frame_time = frame_time;
-  self->time = (frame_time - self->first_frame_time) / (float)G_USEC_PER_SEC;
-
-  gtk_widget_queue_draw (widget);
-
-  return G_SOURCE_CONTINUE;
-}
-
-static void
-motion_cb (GtkEventControllerMotion *controller,
-           double                    x,
-           double                    y,
-           GtkShaderBin             *self)
-{
-  self->mouse_x = x;
-  self->mouse_y = y;
-}
-
-static void
-gtk_shader_bin_init (GtkShaderBin *self)
-{
-  GtkEventController *controller;
-  self->shaders = g_ptr_array_new_with_free_func ((GDestroyNotify)shader_info_free);
-
-  controller = gtk_event_controller_motion_new ();
-  g_signal_connect (controller, "motion", G_CALLBACK (motion_cb), self);
-  gtk_widget_add_controller (GTK_WIDGET (self), controller);
-}
-
-void
-gtk_shader_bin_update_active_shader (GtkShaderBin *self)
-{
-  GtkStateFlags new_state = gtk_widget_get_state_flags (GTK_WIDGET (self));
-  ShaderInfo *new_shader = NULL;
-
-  for (int i = 0; i < self->shaders->len; i++)
-    {
-      ShaderInfo *info = g_ptr_array_index (self->shaders, i);
-
-      if ((info->state_mask & new_state) == info->state)
-        {
-          new_shader = info;
-          break;
-        }
-    }
-
-  if (self->active_shader == new_shader)
-    return;
-
-  self->active_shader = new_shader;
-  self->first_frame_time = 0;
-
-  if (self->active_shader)
-    {
-      if (self->tick_id == 0)
-        self->tick_id = gtk_widget_add_tick_callback (GTK_WIDGET (self),
-                                                      gtk_shader_bin_tick,
-                                                      NULL, NULL);
-    }
-  else
-    {
-      if (self->tick_id != 0)
-        {
-          gtk_widget_remove_tick_callback (GTK_WIDGET (self), self->tick_id);
-          self->tick_id = 0;
-        }
-    }
-
-  gtk_widget_queue_draw (GTK_WIDGET (self));
-}
-
-static void
-gtk_shader_bin_state_flags_changed (GtkWidget        *widget,
-                                    GtkStateFlags     previous_state_flags)
-{
-  GtkShaderBin *self = GTK_SHADER_BIN (widget);
-
-  gtk_shader_bin_update_active_shader (self);
-}
-
-void
-gtk_shader_bin_add_shader (GtkShaderBin *self,
-                           GskGLShader  *shader,
-                           GtkStateFlags state,
-                           GtkStateFlags state_mask,
-                           float         extra_border)
-{
-  ShaderInfo *info = g_new0 (ShaderInfo, 1);
-  info->shader = g_object_ref (shader);
-  info->state = state;
-  info->state_mask = state_mask;
-  info->extra_border = extra_border;
-
-  g_ptr_array_add (self->shaders, info);
-
-  gtk_shader_bin_update_active_shader (self);
-}
-
-void
-gtk_shader_bin_set_child (GtkShaderBin *self,
-                          GtkWidget    *child)
-{
-
-  if (self->child == child)
-    return;
-
-  g_clear_pointer (&self->child, gtk_widget_unparent);
-
-  if (child)
-    {
-      self->child = child;
-      gtk_widget_set_parent (child, GTK_WIDGET (self));
-    }
-}
-
-GtkWidget *
-gtk_shader_bin_get_child   (GtkShaderBin *self)
-{
-  return self->child;
-}
-
-static void
-gtk_shader_bin_snapshot (GtkWidget   *widget,
-                         GtkSnapshot *snapshot)
-{
-  GtkShaderBin *self = GTK_SHADER_BIN (widget);
-  int width, height;
-
-  width = gtk_widget_get_width (widget);
-  height = gtk_widget_get_height (widget);
-
-  if (self->active_shader)
-    {
-      if (!self->active_shader->compiled)
-        {
-          GtkNative *native = gtk_widget_get_native (widget);
-          GskRenderer *renderer = gtk_native_get_renderer (native);
-          GError *error = NULL;
-
-          self->active_shader->compiled = TRUE;
-          self->active_shader->compiled_ok =
-            gsk_gl_shader_compile (self->active_shader->shader,
-                                   renderer, &error);
-          if (!self->active_shader->compiled_ok)
-            {
-              g_warning ("GtkShaderBin failed to compile shader: %s", error->message);
-              g_error_free (error);
-            }
-        }
-
-      if (self->active_shader->compiled_ok)
-        {
-          float border = self->active_shader->extra_border;
-          graphene_vec2_t mouse;
-          graphene_vec2_init (&mouse, self->mouse_x + border, self->mouse_y + border);
-          gtk_snapshot_push_gl_shader (snapshot, self->active_shader->shader,
-                                       &GRAPHENE_RECT_INIT(-border, -border, width+2*border, height+2*border),
-                                       gsk_gl_shader_format_args (self->active_shader->shader,
-                                                                  "u_time", self->time,
-                                                                  "u_mouse", &mouse,
-                                                                  NULL));
-          gtk_widget_snapshot_child (widget, self->child, snapshot);
-          gtk_snapshot_gl_shader_pop_texture (snapshot);
-          gtk_snapshot_pop (snapshot);
-
-          return;
-        }
-    }
-
-  /* Non-shader fallback */
-  gtk_widget_snapshot_child (widget, self->child, snapshot);
-}
-
-static void
-gtk_shader_bin_class_init (GtkShaderBinClass *class)
-{
-  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
-  GObjectClass *object_class = G_OBJECT_CLASS (class);
-
-  object_class->finalize = gtk_shader_bin_finalize;
-  object_class->dispose = gtk_shader_bin_dispose;
-
-  gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BIN_LAYOUT);
-
-  widget_class->snapshot = gtk_shader_bin_snapshot;
-  widget_class->state_flags_changed = gtk_shader_bin_state_flags_changed;
-}
-
-GtkWidget *
-gtk_shader_bin_new (void)
-{
-  GtkShaderBin *self;
-
-  self = g_object_new (GTK_TYPE_SHADER_BIN, NULL);
-
-  return GTK_WIDGET (self);
-}

demos/gtk-demo/gtkshaderbin.h

@@ -1,23 +0,0 @@
-#ifndef __GTK_SHADER_BIN_H__
-#define __GTK_SHADER_BIN_H__
-
-#include <gtk/gtk.h>
-
-G_BEGIN_DECLS
-
-#define GTK_TYPE_SHADER_BIN      (gtk_shader_bin_get_type ())
-G_DECLARE_FINAL_TYPE (GtkShaderBin, gtk_shader_bin, GTK, SHADER_BIN, GtkWidget)
-
-GtkWidget  *gtk_shader_bin_new        (void);
-void        gtk_shader_bin_add_shader (GtkShaderBin *self,
-                                       GskGLShader  *shader,
-                                       GtkStateFlags state,
-                                       GtkStateFlags state_mask,
-                                       float         extra_border);
-void       gtk_shader_bin_set_child   (GtkShaderBin *self,
-                                       GtkWidget    *child);
-GtkWidget *gtk_shader_bin_get_child   (GtkShaderBin *self);
-
-G_END_DECLS
-
-#endif /* __GTK_SHADER_BIN_H__ */

demos/gtk-demo/gtkshaderstack.c

@@ -1,361 +0,0 @@
-#include "gtkshaderstack.h"
-
-struct _GtkShaderStack
-{
-  GtkWidget parent_instance;
-
-  GskGLShader *shader;
-  GPtrArray *children;
-  int current;
-  int next;
-  gboolean backwards;
-
-  guint tick_id;
-  float time;
-  float duration;
-  gint64 start_time;
-};
-
-struct _GtkShaderStackClass
-{
-  GtkWidgetClass parent_class;
-};
-
-
-enum {
-  PROP_DURATION = 1,
-  NUM_PROPERTIES
-};
-
-static GParamSpec *properties[NUM_PROPERTIES] = { NULL };
-
-G_DEFINE_TYPE (GtkShaderStack, gtk_shader_stack, GTK_TYPE_WIDGET)
-
-static void
-gtk_shader_stack_finalize (GObject *object)
-{
-  GtkShaderStack *self = GTK_SHADER_STACK (object);
-
-  g_object_unref (self->shader);
-
-  G_OBJECT_CLASS (gtk_shader_stack_parent_class)->finalize (object);
-}
-
-static void
-update_child_visible (GtkShaderStack *self)
-{
-  int i;
-
-  for (i = 0; i < self->children->len; i++)
-    {
-      GtkWidget *child = g_ptr_array_index (self->children, i);
-
-      gtk_widget_set_child_visible (child,
-                                    i == self->current || i == self->next);
-    }
-}
-
-static gboolean
-transition_cb (GtkWidget     *widget,
-               GdkFrameClock *clock,
-               gpointer       unused)
-{
-  GtkShaderStack *self = GTK_SHADER_STACK (widget);
-  gint64 frame_time;
-
-  frame_time = gdk_frame_clock_get_frame_time (clock);
-
-  if (self->start_time == 0)
-    self->start_time = frame_time;
-
-  self->time = (frame_time - self->start_time) / (float)G_USEC_PER_SEC;
-
-  gtk_widget_queue_draw (widget);
-
-  if (self->time >= self->duration)
-    {
-      self->current = self->next;
-      self->next = -1;
-
-      update_child_visible (self);
-
-      return G_SOURCE_REMOVE;
-    }
-  else
-    return G_SOURCE_CONTINUE;
-}
-
-static void
-start_transition (GtkShaderStack *self)
-{
-  self->start_time = 0;
-  self->tick_id = gtk_widget_add_tick_callback (GTK_WIDGET (self),
-                                                transition_cb,
-                                                NULL, NULL);
-}
-
-static void
-stop_transition (GtkShaderStack *self)
-{
-  if (self->tick_id != 0)
-    {
-      gtk_widget_remove_tick_callback (GTK_WIDGET (self), self->tick_id);
-      self->tick_id = 0;
-    }
-
-  if (self->next != -1)
-    self->current = self->next;
-  self->next = -1;
-
-  update_child_visible (self);
-}
-
-static void
-gtk_shader_stack_dispose (GObject *object)
-{
-  GtkShaderStack *self = GTK_SHADER_STACK (object);
-
-  stop_transition (self);
-
-  g_clear_pointer (&self->children, g_ptr_array_unref);
-
-  G_OBJECT_CLASS (gtk_shader_stack_parent_class)->dispose (object);
-}
-
-void
-gtk_shader_stack_transition (GtkShaderStack *self,
-                             gboolean forward)
-{
-  stop_transition (self);
-
-  self->backwards = !forward;
-  if (self->backwards)
-    self->next = (self->current + self->children->len - 1) % self->children->len;
-  else
-    self->next = (self->current + 1) % self->children->len;
-
-  update_child_visible (self);
-
-  start_transition (self);
-}
-
-static void
-gtk_shader_stack_init (GtkShaderStack *self)
-{
-  self->children = g_ptr_array_new_with_free_func ((GDestroyNotify)gtk_widget_unparent);
-  self->current = -1;
-  self->next = -1;
-  self->backwards = FALSE;
-  self->duration = 1.0;
-}
-
-static void
-gtk_shader_stack_measure (GtkWidget      *widget,
-                          GtkOrientation  orientation,
-                          int             for_size,
-                          int            *minimum,
-                          int            *natural,
-                          int            *minimum_baseline,
-                          int            *natural_baseline)
-{
-  GtkShaderStack *self = GTK_SHADER_STACK (widget);
-  int i;
-
-  *minimum = 0;
-  *natural = 0;
-
-  for (i = 0; i < self->children->len; i++)
-    {
-      GtkWidget *child = g_ptr_array_index (self->children, i);
-      int child_min, child_nat;
-
-      if (gtk_widget_get_visible (child))
-        {
-          gtk_widget_measure (child, orientation, for_size, &child_min, &child_nat, NULL, NULL);
-
-          *minimum = MAX (*minimum, child_min);
-          *natural = MAX (*natural, child_nat);
-        }
-    }
-}
-
-static void
-gtk_shader_stack_size_allocate (GtkWidget *widget,
-                                int        width,
-                                int        height,
-                                int        baseline)
-{
-  GtkShaderStack *self = GTK_SHADER_STACK (widget);
-  GtkAllocation child_allocation;
-  GtkWidget *child;
-  int i;
-
-  child_allocation.x = 0;
-  child_allocation.y = 0;
-  child_allocation.width = width;
-  child_allocation.height = height;
-
-  for (i = 0; i < self->children->len; i++)
-    {
-      child = g_ptr_array_index (self->children, i);
-      if (gtk_widget_get_visible (child))
-        gtk_widget_size_allocate (child, &child_allocation, -1);
-    }
-}
-
-static void
-gtk_shader_stack_snapshot (GtkWidget   *widget,
-                           GtkSnapshot *snapshot)
-{
-  GtkShaderStack *self = GTK_SHADER_STACK (widget);
-  int width, height;
-  GtkWidget *current, *next;
-
-  width = gtk_widget_get_width (widget);
-  height = gtk_widget_get_height (widget);
-
-  current = g_ptr_array_index (self->children, self->current);
-
-  if (self->next == -1)
-    {
-      gtk_widget_snapshot_child (widget, current, snapshot);
-    }
-  else
-    {
-      GtkNative *native = gtk_widget_get_native (widget);
-      GskRenderer *renderer = gtk_native_get_renderer (native);
-      float progress;
-
-      next = g_ptr_array_index (self->children, self->next);
-
-      progress = self->time / self->duration;
-
-      if (self->backwards)
-        {
-          GtkWidget *tmp = next;
-          next = current;
-          current = tmp;
-          progress = 1. - progress;
-        }
-
-      if (gsk_gl_shader_compile (self->shader, renderer, NULL))
-        {
-          gtk_snapshot_push_gl_shader (snapshot,
-                                       self->shader,
-                                       &GRAPHENE_RECT_INIT(0, 0, width, height),
-                                       gsk_gl_shader_format_args (self->shader,
-                                                                  "progress", progress,
-                                                                  NULL));
-
-          gtk_widget_snapshot_child (widget, current, snapshot);
-          gtk_snapshot_gl_shader_pop_texture (snapshot); /* current child */
-          gtk_widget_snapshot_child (widget, next, snapshot);
-          gtk_snapshot_gl_shader_pop_texture (snapshot); /* next child */
-          gtk_snapshot_pop (snapshot);
-        }
-      else
-        {
-          /* Non-shader fallback */
-          gtk_widget_snapshot_child (widget, current, snapshot);
-        }
-    }
-}
-
-static void
-gtk_shader_stack_get_property (GObject      *object,
-                               guint         prop_id,
-                               GValue       *value,
-                               GParamSpec   *pspec)
-{
-  GtkShaderStack *self = GTK_SHADER_STACK (object);
-
-  switch (prop_id)
-    {
-    case PROP_DURATION:
-      g_value_set_float (value, self->duration);
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-gtk_shader_stack_set_property (GObject      *object,
-                               guint         prop_id,
-                               const GValue *value,
-                               GParamSpec   *pspec)
-{
-  GtkShaderStack *self = GTK_SHADER_STACK (object);
-
-  switch (prop_id)
-    {
-    case PROP_DURATION:
-      self->duration = g_value_get_float (value);
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-gtk_shader_stack_class_init (GtkShaderStackClass *class)
-{
-  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
-  GObjectClass *object_class = G_OBJECT_CLASS (class);
-
-  object_class->finalize = gtk_shader_stack_finalize;
-  object_class->dispose = gtk_shader_stack_dispose;
-  object_class->get_property = gtk_shader_stack_get_property;
-  object_class->set_property = gtk_shader_stack_set_property;
-
-  widget_class->snapshot = gtk_shader_stack_snapshot;
-  widget_class->measure = gtk_shader_stack_measure;
-  widget_class->size_allocate = gtk_shader_stack_size_allocate;
-
-  properties[PROP_DURATION] =
-      g_param_spec_float ("duration", "Duration", "Duration",
-                          0.1, 3.0, 1.0,
-                          G_PARAM_READWRITE);
-
-  g_object_class_install_properties (object_class, NUM_PROPERTIES, properties);
-}
-
-GtkWidget *
-gtk_shader_stack_new (void)
-{
-  return g_object_new (GTK_TYPE_SHADER_STACK, NULL);
-}
-
-void
-gtk_shader_stack_set_shader (GtkShaderStack *self,
-                             GskGLShader    *shader)
-{
-  g_set_object (&self->shader, shader);
-}
-
-void
-gtk_shader_stack_add_child (GtkShaderStack *self,
-                            GtkWidget      *child)
-{
-  g_ptr_array_add (self->children, child);
-  gtk_widget_set_parent (child, GTK_WIDGET (self));
-  gtk_widget_queue_resize (GTK_WIDGET (self));
-
-  if (self->current == -1)
-    self->current = 0;
-  else
-    gtk_widget_set_child_visible (child, FALSE);
-}
-
-void
-gtk_shader_stack_set_active (GtkShaderStack *self,
-                             int             index)
-{
-  stop_transition (self);
-  self->current = MIN (index, self->children->len);
-  update_child_visible (self);
-}

demos/gtk-demo/gtkshaderstack.h

@@ -1,23 +0,0 @@
-#ifndef __GTK_SHADER_STACK_H__
-#define __GTK_SHADER_STACK_H__
-
-#include <gtk/gtk.h>
-
-G_BEGIN_DECLS
-
-#define GTK_TYPE_SHADER_STACK     (gtk_shader_stack_get_type ())
-G_DECLARE_FINAL_TYPE (GtkShaderStack, gtk_shader_stack, GTK, SHADER_STACK, GtkWidget)
-
-GtkWidget * gtk_shader_stack_new          (void);
-void        gtk_shader_stack_set_shader   (GtkShaderStack *self,
-                                           GskGLShader    *shader);
-void        gtk_shader_stack_add_child    (GtkShaderStack *self,
-                                           GtkWidget      *child);
-void        gtk_shader_stack_transition   (GtkShaderStack *self,
-                                           gboolean        forward);
-void        gtk_shader_stack_set_active   (GtkShaderStack *self,
-                                           int             index);
-
-G_END_DECLS
-
-#endif /* __GTK_SHADER_STACK_H__ */

demos/gtk-demo/gtkshadertoy.c

@@ -1,526 +0,0 @@
-#include <math.h>
-#include <stdlib.h>
-#include <string.h>
-#include <epoxy/gl.h>
-
-#include "gtkshadertoy.h"
-
-const char *default_image_shader =
-  "void mainImage(out vec4 fragColor, in vec2 fragCoord) {\n"
-  "    // Normalized pixel coordinates (from 0 to 1)\n"
-  "    vec2 uv = fragCoord/iResolution.xy;\n"
-  "\n"
-  "   // Time varying pixel color\n"
-  "    vec3 col = 0.5 + 0.5*cos(iTime+uv.xyx+vec3(0,2,4));\n"
-  "\n"
-  "    if (distance(iMouse.xy, fragCoord.xy) <= 10.0) {\n"
-  "        col = vec3(0.0);\n"
-  "    }\n"
-  "\n"
-  "    // Output to screen\n"
-  "    fragColor = vec4(col,1.0);\n"
-  "}\n";
-
-const char *shadertoy_vertex_shader =
-  "#version 150 core\n"
-  "\n"
-  "uniform vec3 iResolution;\n"
-  "\n"
-  "in vec2 position;\n"
-  "out vec2 fragCoord;\n"
-  "\n"
-  "void main() {\n"
-  "    gl_Position = vec4(position, 0.0, 1.0);\n"
-  "\n"
-  "    // Convert from OpenGL coordinate system (with origin in center\n"
-  "    // of screen) to Shadertoy/texture coordinate system (with origin\n"
-  "    // in lower left corner)\n"
-  "    fragCoord = (gl_Position.xy + vec2(1.0)) / vec2(2.0) * iResolution.xy;\n"
-  "}\n";
-
-const char *fragment_prefix =
-  "#version 150 core\n"
-  "\n"
-  "uniform vec3      iResolution;           // viewport resolution (in pixels)\n"
-  "uniform float     iTime;                 // shader playback time (in seconds)\n"
-  "uniform float     iTimeDelta;            // render time (in seconds)\n"
-  "uniform int       iFrame;                // shader playback frame\n"
-  "uniform float     iChannelTime[4];       // channel playback time (in seconds)\n"
-  "uniform vec3      iChannelResolution[4]; // channel resolution (in pixels)\n"
-  "uniform vec4      iMouse;                // mouse pixel coords. xy: current (if MLB down), zw: click\n"
-  "uniform sampler2D iChannel0;\n"
-  "uniform sampler2D iChannel1;\n"
-  "uniform sampler2D iChannel2;\n"
-  "uniform sampler2D iChannel3;\n"
-  "uniform vec4      iDate;                 // (year, month, day, time in seconds)\n"
-  "uniform float     iSampleRate;           // sound sample rate (i.e., 44100)\n"
-  "\n"
-  "in vec2 fragCoord;\n"
-  "out vec4 vFragColor;\n";
-
-
-// Fragment shader suffix
-const char *fragment_suffix =
-  "    void main() {\n"
-  "        vec4 c;\n"
-  "        mainImage(c, fragCoord);\n"
-  "         vFragColor = c;\n"
-  "    }\n";
-
-typedef struct {
-  char *image_shader;
-  gboolean image_shader_dirty;
-
-  gboolean error_set;
-
-  /* Vertex buffers */
-  GLuint vao;
-  GLuint buffer;
-
-  /* Active program */
-  GLuint program;
-
-  /* Location of uniforms for program */
-  GLuint resolution_location;
-  GLuint time_location;
-  GLuint timedelta_location;
-  GLuint frame_location;
-  GLuint mouse_location;
-
-  /* Current uniform values */
-  float resolution[3];
-  float time;
-  float timedelta;
-  float mouse[4];
-  int frame;
-
-  /* Animation data */
-  gint64 first_frame_time;
-  gint64 first_frame;
-  guint tick;
-} GtkShadertoyPrivate;
-
-G_DEFINE_TYPE_WITH_PRIVATE (GtkShadertoy, gtk_shadertoy, GTK_TYPE_GL_AREA)
-
-static gboolean gtk_shadertoy_render        (GtkGLArea     *area,
-                                             GdkGLContext  *context);
-static void     gtk_shadertoy_reshape       (GtkGLArea     *area,
-                                             int            width,
-                                             int            height);
-static void     gtk_shadertoy_realize       (GtkWidget     *widget);
-static void     gtk_shadertoy_unrealize     (GtkWidget     *widget);
-static gboolean gtk_shadertoy_tick          (GtkWidget     *widget,
-                                             GdkFrameClock *frame_clock,
-                                             gpointer       user_data);
-
-GtkWidget *
-gtk_shadertoy_new (void)
-{
-  return g_object_new (gtk_shadertoy_get_type (), NULL);
-}
-
-static void
-drag_begin_cb (GtkGestureDrag *drag,
-               double          x,
-               double          y,
-               gpointer        user_data)
-{
-  GtkShadertoy *shadertoy = GTK_SHADERTOY (user_data);
-  GtkShadertoyPrivate *priv = gtk_shadertoy_get_instance_private (shadertoy);
-  int height = gtk_widget_get_height (GTK_WIDGET (shadertoy));
-  int scale = gtk_widget_get_scale_factor (GTK_WIDGET (shadertoy));
-
- priv->mouse[0] = x * scale;
- priv->mouse[1] = (height - y) * scale;
- priv->mouse[2] = priv->mouse[0];
- priv->mouse[3] = priv->mouse[1];
-}
-
-static void
-drag_update_cb (GtkGestureDrag *drag,
-                double          dx,
-                double          dy,
-                gpointer        user_data)
-{
-  GtkShadertoy *shadertoy = GTK_SHADERTOY (user_data);
-  GtkShadertoyPrivate *priv = gtk_shadertoy_get_instance_private (shadertoy);
-  int width = gtk_widget_get_width (GTK_WIDGET (shadertoy));
-  int height = gtk_widget_get_height (GTK_WIDGET (shadertoy));
-  int scale = gtk_widget_get_scale_factor (GTK_WIDGET (shadertoy));
-  double x, y;
-
-  gtk_gesture_drag_get_start_point (drag, &x, &y);
-  x += dx;
-  y += dy;
-
-  if (x >= 0 && x < width &&
-      y >= 0 && y < height)
-    {
-      priv->mouse[0] = x * scale;
-      priv->mouse[1] = (height - y) * scale;
-    }
-}
-
-static void
-drag_end_cb (GtkGestureDrag *drag,
-             gdouble         dx,
-             gdouble         dy,
-             gpointer        user_data)
-{
-  GtkShadertoy *shadertoy = GTK_SHADERTOY (user_data);
-  GtkShadertoyPrivate *priv = gtk_shadertoy_get_instance_private (shadertoy);
-
-  priv->mouse[2] = -priv->mouse[2];
-  priv->mouse[3] = -priv->mouse[3];
-}
-
-static void
-gtk_shadertoy_init (GtkShadertoy *shadertoy)
-{
-  GtkShadertoyPrivate *priv = gtk_shadertoy_get_instance_private (shadertoy);
-  GtkGesture *drag;
-
-  priv->image_shader = g_strdup (default_image_shader);
-  priv->tick = gtk_widget_add_tick_callback (GTK_WIDGET (shadertoy), gtk_shadertoy_tick, shadertoy, NULL);
-
-  drag = gtk_gesture_drag_new ();
-  gtk_widget_add_controller (GTK_WIDGET (shadertoy), GTK_EVENT_CONTROLLER (drag));
-  g_signal_connect (drag, "drag-begin", (GCallback)drag_begin_cb, shadertoy);
-  g_signal_connect (drag, "drag-update", (GCallback)drag_update_cb, shadertoy);
-  g_signal_connect (drag, "drag-end", (GCallback)drag_end_cb, shadertoy);
-}
-
-static void
-gtk_shadertoy_finalize (GObject *obj)
-{
-  GtkShadertoy *shadertoy = GTK_SHADERTOY (obj);
-  GtkShadertoyPrivate *priv = gtk_shadertoy_get_instance_private (shadertoy);
-
-  gtk_widget_remove_tick_callback (GTK_WIDGET (shadertoy), priv->tick);
-  g_free (priv->image_shader);
-
-  G_OBJECT_CLASS (gtk_shadertoy_parent_class)->finalize (obj);
-}
-
-static void
-gtk_shadertoy_class_init (GtkShadertoyClass *klass)
-{
-  GTK_GL_AREA_CLASS (klass)->render = gtk_shadertoy_render;
-  GTK_GL_AREA_CLASS (klass)->resize = gtk_shadertoy_reshape;
-
-  GTK_WIDGET_CLASS (klass)->realize = gtk_shadertoy_realize;
-  GTK_WIDGET_CLASS (klass)->unrealize = gtk_shadertoy_unrealize;
-
-  G_OBJECT_CLASS (klass)->finalize = gtk_shadertoy_finalize;
-}
-
-/* new window size or exposure */
-static void
-gtk_shadertoy_reshape (GtkGLArea *area, int width, int height)
-{
-  GtkShadertoyPrivate *priv = gtk_shadertoy_get_instance_private ((GtkShadertoy *) area);
-
-  priv->resolution[0] = width;
-  priv->resolution[1] = height;
-  priv->resolution[2] = 1.0; /* screen aspect ratio */
-
-  /* Set the viewport */
-  glViewport (0, 0, (GLint) width, (GLint) height);
-}
-
-static GLuint
-create_shader (int         type,
-               const char *src,
-               GError    **error)
-{
-  GLuint shader;
-  int status;
-
-  shader = glCreateShader (type);
-  glShaderSource (shader, 1, &src, NULL);
-  glCompileShader (shader);
-
-  glGetShaderiv (shader, GL_COMPILE_STATUS, &status);
-  if (status == GL_FALSE)
-    {
-      int log_len;
-      char *buffer;
-
-      glGetShaderiv (shader, GL_INFO_LOG_LENGTH, &log_len);
-
-      buffer = g_malloc (log_len + 1);
-      glGetShaderInfoLog (shader, log_len, NULL, buffer);
-
-      g_set_error (error, GDK_GL_ERROR, GDK_GL_ERROR_COMPILATION_FAILED,
-                   "Compile failure in %s shader:\n%s",
-                   type == GL_VERTEX_SHADER ? "vertex" : "fragment",
-                   buffer);
-
-      g_free (buffer);
-
-      glDeleteShader (shader);
-
-      return 0;
-    }
-
-  return shader;
-}
-
-static gboolean
-init_shaders (GtkShadertoy *shadertoy,
-              const char *vertex_source,
-              const char *fragment_source,
-              GError **error)
-{
-  GtkShadertoyPrivate *priv = gtk_shadertoy_get_instance_private (shadertoy);
-  GLuint vertex, fragment;
-  GLuint program = 0;
-  int status;
-  gboolean res = TRUE;
-
-  vertex = create_shader (GL_VERTEX_SHADER, vertex_source, error);
-  if (vertex == 0)
-    return FALSE;
-
-  fragment = create_shader (GL_FRAGMENT_SHADER, fragment_source, error);
-  if (fragment == 0)
-    {
-      glDeleteShader (vertex);
-      return FALSE;
-    }
-
-  program = glCreateProgram ();
-  glAttachShader (program, vertex);
-  glAttachShader (program, fragment);
-
-  glLinkProgram (program);
-
-  glGetProgramiv (program, GL_LINK_STATUS, &status);
-  if (status == GL_FALSE)
-    {
-      int log_len;
-      char *buffer;
-
-      glGetProgramiv (program, GL_INFO_LOG_LENGTH, &log_len);
-
-      buffer = g_malloc (log_len + 1);
-      glGetProgramInfoLog (program, log_len, NULL, buffer);
-
-      g_set_error (error, GDK_GL_ERROR, GDK_GL_ERROR_LINK_FAILED,
-                   "Linking failure:\n%s", buffer);
-      res = FALSE;
-
-      g_free (buffer);
-
-      glDeleteProgram (program);
-
-      goto out;
-    }
-
-  if (priv->program != 0)
-    glDeleteProgram (priv->program);
-
-  priv->program = program;
-  priv->resolution_location = glGetUniformLocation (program, "iResolution");
-  priv->time_location = glGetUniformLocation (program, "iTime");
-  priv->timedelta_location = glGetUniformLocation (program, "iTimeDelta");
-  priv->frame_location = glGetUniformLocation (program, "iFrame");
-  priv->mouse_location = glGetUniformLocation (program, "iMouse");
-
-  glDetachShader (program, vertex);
-  glDetachShader (program, fragment);
-
-out:
-  /* These are now owned by the program and can be deleted */
-  glDeleteShader (vertex);
-  glDeleteShader (fragment);
-
-  return res;
-}
-
-static void
-gtk_shadertoy_realize_shader (GtkShadertoy *shadertoy)
-{
-  GtkShadertoyPrivate *priv = gtk_shadertoy_get_instance_private (shadertoy);
-  char *fragment_shader;
-  GError *error = NULL;
-
-  fragment_shader = g_strconcat (fragment_prefix, priv->image_shader, fragment_suffix, NULL);
-  if (!init_shaders (shadertoy, shadertoy_vertex_shader, fragment_shader, &error))
-    {
-      priv->error_set = TRUE;
-      gtk_gl_area_set_error (GTK_GL_AREA (shadertoy), error);
-      g_error_free (error);
-    }
-  g_free (fragment_shader);
-
-  /* Start new shader at time zero */
-  priv->first_frame_time = 0;
-  priv->first_frame = 0;
-
-  priv->image_shader_dirty = FALSE;
-}
-
-static gboolean
-gtk_shadertoy_render (GtkGLArea    *area,
-                      GdkGLContext *context)
-{
-  GtkShadertoy *shadertoy = GTK_SHADERTOY (area);
-  GtkShadertoyPrivate *priv = gtk_shadertoy_get_instance_private (shadertoy);
-
-  if (gtk_gl_area_get_error (area) != NULL)
-    return FALSE;
-
-  if (priv->image_shader_dirty)
-    gtk_shadertoy_realize_shader (shadertoy);
-
-  /* Clear the viewport */
-  glClearColor (0.0, 0.0, 0.0, 1.0);
-  glClear (GL_COLOR_BUFFER_BIT);
-
-  glUseProgram (priv->program);
-
-  /* Update uniforms */
-  if (priv->resolution_location != -1)
-    glUniform3fv (priv->resolution_location, 1, priv->resolution);
-  if (priv->time_location != -1)
-    glUniform1f (priv->time_location, priv->time);
-  if (priv->timedelta_location != -1)
-    glUniform1f (priv->timedelta_location, priv->timedelta);
-  if (priv->frame_location != -1)
-    glUniform1i (priv->frame_location, priv->frame);
-  if (priv->mouse_location != -1)
-    glUniform4fv (priv->mouse_location, 1, priv->mouse);
-
-  /* Use the vertices in our buffer */
-  glBindBuffer (GL_ARRAY_BUFFER, priv->buffer);
-  glEnableVertexAttribArray (0);
-  glVertexAttribPointer (0, 4, GL_FLOAT, GL_FALSE, 0, 0);
-
-  glDrawArrays (GL_TRIANGLES, 0, 6);
-
-  /* We finished using the buffers and program */
-  glDisableVertexAttribArray (0);
-  glBindBuffer (GL_ARRAY_BUFFER, 0);
-  glUseProgram (0);
-
-  /* Flush the contents of the pipeline */
-  glFlush ();
-
-  return TRUE;
-}
-
-const char *
-gtk_shadertoy_get_image_shader (GtkShadertoy *shadertoy)
-{
-  GtkShadertoyPrivate *priv = gtk_shadertoy_get_instance_private (shadertoy);
-
-  return priv->image_shader;
-}
-
-void
-gtk_shadertoy_set_image_shader (GtkShadertoy *shadertoy,
-                                const char   *shader)
-{
-  GtkShadertoyPrivate *priv = gtk_shadertoy_get_instance_private (shadertoy);
-
-  g_free (priv->image_shader);
-  priv->image_shader = g_strdup (shader);
-
-  /* Don't override error we didn't set it ourselves */
-  if (priv->error_set)
-    {
-      gtk_gl_area_set_error (GTK_GL_AREA (shadertoy), NULL);
-      priv->error_set = FALSE;
-    }
-  priv->image_shader_dirty = TRUE;
-}
-
-static void
-gtk_shadertoy_realize (GtkWidget *widget)
-{
-  GtkGLArea *glarea = GTK_GL_AREA (widget);
-  GtkShadertoy *shadertoy = GTK_SHADERTOY (widget);
-  GtkShadertoyPrivate *priv = gtk_shadertoy_get_instance_private (shadertoy);
-
-  /* Draw two triangles across whole screen */
-  const GLfloat vertex_data[] = {
-    -1.0f, -1.0f, 0.f, 1.f,
-    -1.0f,  1.0f, 0.f, 1.f,
-    1.0f,  1.0f, 0.f, 1.f,
-
-    -1.0f, -1.0f, 0.f, 1.f,
-    1.0f,  1.0f, 0.f, 1.f,
-    1.0f, -1.0f, 0.f, 1.f,
-  };
-
-  GTK_WIDGET_CLASS (gtk_shadertoy_parent_class)->realize (widget);
-
-  gtk_gl_area_make_current (glarea);
-  if (gtk_gl_area_get_error (glarea) != NULL)
-    return;
-
-  glGenVertexArrays (1, &priv->vao);
-  glBindVertexArray (priv->vao);
-
-  glGenBuffers (1, &priv->buffer);
-  glBindBuffer (GL_ARRAY_BUFFER, priv->buffer);
-  glBufferData (GL_ARRAY_BUFFER, sizeof (vertex_data), vertex_data, GL_STATIC_DRAW);
-  glBindBuffer (GL_ARRAY_BUFFER, 0);
-
-  gtk_shadertoy_realize_shader (shadertoy);
-}
-
-static void
-gtk_shadertoy_unrealize (GtkWidget *widget)
-{
-  GtkGLArea *glarea = GTK_GL_AREA (widget);
-  GtkShadertoyPrivate *priv = gtk_shadertoy_get_instance_private ((GtkShadertoy *) widget);
-
-  gtk_gl_area_make_current (glarea);
-  if (gtk_gl_area_get_error (glarea) == NULL)
-    {
-      if (priv->buffer != 0)
-        glDeleteBuffers (1, &priv->buffer);
-
-      if (priv->vao != 0)
-        glDeleteVertexArrays (1, &priv->vao);
-
-      if (priv->program != 0)
-        glDeleteProgram (priv->program);
-    }
-
-  GTK_WIDGET_CLASS (gtk_shadertoy_parent_class)->unrealize (widget);
-}
-
-static gboolean
-gtk_shadertoy_tick (GtkWidget     *widget,
-                    GdkFrameClock *frame_clock,
-                    gpointer       user_data)
-{
-  GtkShadertoy *shadertoy = GTK_SHADERTOY (widget);
-  GtkShadertoyPrivate *priv = gtk_shadertoy_get_instance_private (shadertoy);
-  gint64 frame_time;
-  gint64 frame;
-  float previous_time;
-
-  frame = gdk_frame_clock_get_frame_counter (frame_clock);
-  frame_time = gdk_frame_clock_get_frame_time (frame_clock);
-
-  if (priv->first_frame_time == 0)
-    {
-      priv->first_frame_time = frame_time;
-      priv->first_frame = frame;
-      previous_time = 0;
-    }
-  else
-    previous_time = priv->time;
-
-  priv->time = (frame_time - priv->first_frame_time) / 1000000.0f;
-  priv->frame = frame - priv->first_frame;
-  priv->timedelta = priv->time - previous_time;
-
-  gtk_widget_queue_draw (widget);
-
-  return G_SOURCE_CONTINUE;
-}

demos/gtk-demo/gtkshadertoy.h

@@ -1,34 +0,0 @@
-#ifndef __GTK_SHADERTOY_H__
-#define __GTK_SHADERTOY_H__
-
-#include <gtk/gtk.h>
-
-G_BEGIN_DECLS
-
-#define GTK_TYPE_SHADERTOY      (gtk_shadertoy_get_type ())
-#define GTK_SHADERTOY(inst)     (G_TYPE_CHECK_INSTANCE_CAST ((inst), \
-                                 GTK_TYPE_SHADERTOY,                 \
-                                 GtkShadertoy))
-#define GTK_IS_SHADERTOY(inst)  (G_TYPE_CHECK_INSTANCE_TYPE ((inst), \
-                                 GTK_TYPE_SHADERTOY))
-
-typedef struct _GtkShadertoy GtkShadertoy;
-typedef struct _GtkShadertoyClass GtkShadertoyClass;
-
-struct _GtkShadertoy {
-  GtkGLArea parent;
-};
-
-struct _GtkShadertoyClass {
-  GtkGLAreaClass parent_class;
-};
-
-GType       gtk_shadertoy_get_type         (void) G_GNUC_CONST;
-GtkWidget  *gtk_shadertoy_new              (void);
-const char *gtk_shadertoy_get_image_shader (GtkShadertoy *shadertoy);
-void        gtk_shadertoy_set_image_shader (GtkShadertoy *shadertoy,
-                                            const char   *shader);
-
-G_END_DECLS
-
-#endif /* __GTK_SHADERTOY_H__ */

demos/gtk-demo/headerbar.c

@@ -1,5 +1,4 @@
 /* Header Bar
- * #Keywords: GtkWindowHandle, GtkWindowControls
  *
  * GtkHeaderBar is a container that is suitable for implementing
  * window titlebars. One of its features is that it can position
@@ -49,7 +48,6 @@ do_headerbar (GtkWidget *do_widget)
       gtk_box_append (GTK_BOX (box), button);
 
       gtk_header_bar_pack_start (GTK_HEADER_BAR (header), box);
-      gtk_header_bar_pack_start (GTK_HEADER_BAR (header), gtk_switch_new ());
 
       gtk_window_set_titlebar (GTK_WINDOW (window), header);
 

demos/gtk-demo/hypertext.c

@@ -1,13 +1,9 @@
 /* Text View/Hypertext
- * #Keywords: GtkTextView, GtkTextBuffer
  *
  * Usually, tags modify the appearance of text in the view, e.g. making it
  * bold or colored or underlined. But tags are not restricted to appearance.
  * They can also affect the behavior of mouse and key presses, as this demo
  * shows.
- *
- * We also demonstrate adding other things to a text view, such as
- * clickable icons.
  */
 
 #include <gtk/gtk.h>
@@ -34,103 +30,35 @@ insert_link (GtkTextBuffer *buffer,
   gtk_text_buffer_insert_with_tags (buffer, iter, text, -1, tag, NULL);
 }
 
-/* Quick-and-dirty text-to-speech for a single word. If you don't hear
- * anything, you are missing espeak-ng on your system.
- */
-static void
-say_word (GtkGestureClick *gesture,
-          guint            n_press,
-          double           x,
-          double           y,
-          const char      *word)
-{
-  const char *argv[3];
-
-  argv[0] = "espeak-ng";
-  argv[1] = word;
-  argv[2] = NULL;
-
-  g_spawn_async (NULL, (char **)argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, NULL, NULL);
-}
-
 /* Fills the buffer with text and interspersed links. In any real
  * hypertext app, this method would parse a file to identify the links.
  */
 static void
-show_page (GtkTextView *text_view,
-           int          page)
+show_page (GtkTextBuffer *buffer,
+           int            page)
 {
-  GtkTextBuffer *buffer;
   GtkTextIter iter;
-  GtkWidget *child;
-  GtkTextChildAnchor *anchor;
-  GtkEventController *controller;
 
-  buffer = gtk_text_view_get_buffer (text_view);
   gtk_text_buffer_set_text (buffer, "", 0);
   gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);
   gtk_text_buffer_begin_irreversible_action (buffer);
   if (page == 1)
     {
-      GtkIconPaintable *icon;
-      GtkIconTheme *theme;
-
       gtk_text_buffer_insert (buffer, &iter, "Some text to show that simple ", -1);
-      insert_link (buffer, &iter, "hypertext", 3);
+      insert_link (buffer, &iter, "hyper text", 3);
       gtk_text_buffer_insert (buffer, &iter, " can easily be realized with ", -1);
       insert_link (buffer, &iter, "tags", 2);
-      gtk_text_buffer_insert (buffer, &iter, ".\n", -1);
-      gtk_text_buffer_insert (buffer, &iter,
-          "Of course you can also embed Emoji 😋, "
-          "icons ", -1);
-
-      theme = gtk_icon_theme_get_for_display (gtk_widget_get_display (GTK_WIDGET (text_view)));
-      icon = gtk_icon_theme_lookup_icon (theme,
-                                         "microphone-sensitivity-high-symbolic",
-                                         NULL,
-                                         16,
-                                         1,
-                                         GTK_TEXT_DIR_LTR,
-                                         0);
-      gtk_text_buffer_insert_paintable (buffer, &iter, GDK_PAINTABLE (icon));
-      g_object_unref (icon);
-      gtk_text_buffer_insert (buffer, &iter, ", or even widgets ", -1);
-      anchor = gtk_text_buffer_create_child_anchor (buffer, &iter);
-      child = gtk_level_bar_new_for_interval (0, 100);
-      gtk_level_bar_set_value (GTK_LEVEL_BAR (child), 50);
-      gtk_widget_set_size_request (child, 100, -1);
-      gtk_text_view_add_child_at_anchor (text_view, child, anchor);
       gtk_text_buffer_insert (buffer, &iter, ".", -1);
     }
   else if (page == 2)
     {
-      GtkTextTag *tag;
-
-      tag = gtk_text_buffer_create_tag (buffer, NULL,
-                                        "weight", PANGO_WEIGHT_BOLD,
-                                        "scale", PANGO_SCALE_X_LARGE,
-                                        NULL);
-      gtk_text_buffer_insert_with_tags (buffer, &iter, "tag", -1, tag, NULL);
-      tag = gtk_text_buffer_create_tag (buffer, NULL,
-                                        "family", "monospace",
-                                        NULL);
-      gtk_text_buffer_insert_with_tags (buffer, &iter, " / tag / ", -1, tag, NULL);
-
-      anchor = gtk_text_buffer_create_child_anchor (buffer, &iter);
-      child = gtk_image_new_from_icon_name ("audio-volume-high-symbolic");
-      gtk_widget_set_cursor_from_name (child, "pointer");
-      controller = GTK_EVENT_CONTROLLER (gtk_gesture_click_new ());
-      g_signal_connect (controller, "pressed", G_CALLBACK (say_word), (gpointer)"tag");
-      gtk_widget_add_controller (child, controller);
-      gtk_text_view_add_child_at_anchor (text_view, child, anchor);
-
-      gtk_text_buffer_insert (buffer, &iter, "\n"
-          "An attribute that can be applied to some range of text. For example, "
-          "a tag might be called “bold” and make the text inside the tag bold.\n"
-          "However, the tag concept is more general than that; "
-          "tags don't have to affect appearance. They can instead affect the "
-          "behavior of mouse and key presses, “lock” a range of text so the "
-          "user can't edit it, or countless other things.\n", -1);
+      gtk_text_buffer_insert (buffer, &iter,
+                              "A tag is an attribute that can be applied to some range of text. "
+                              "For example, a tag might be called \"bold\" and make the text inside "
+                              "the tag bold. However, the tag concept is more general than that; "
+                              "tags don't have to affect appearance. They can instead affect the "
+                              "behavior of mouse and key presses, \"lock\" a range of text so the "
+                              "user can't edit it, or countless other things.\n", -1);
       insert_link (buffer, &iter, "Go back", 1);
     }
   else if (page == 3)
@@ -139,25 +67,11 @@ show_page (GtkTextView *text_view,
 
       tag = gtk_text_buffer_create_tag (buffer, NULL,
                                         "weight", PANGO_WEIGHT_BOLD,
-                                        "scale", PANGO_SCALE_X_LARGE,
                                         NULL);
-      gtk_text_buffer_insert_with_tags (buffer, &iter, "hypertext", -1, tag, NULL);
-      tag = gtk_text_buffer_create_tag (buffer, NULL,
-                                        "family", "monospace",
-                                        NULL);
-      gtk_text_buffer_insert_with_tags (buffer, &iter, " / ˈhaɪ pərˌtɛkst / ", -1, tag, NULL);
-
-      anchor = gtk_text_buffer_create_child_anchor (buffer, &iter);
-      child = gtk_image_new_from_icon_name ("audio-volume-high-symbolic");
-      gtk_widget_set_cursor_from_name (child, "pointer");
-      controller = GTK_EVENT_CONTROLLER (gtk_gesture_click_new ());
-      g_signal_connect (controller, "pressed", G_CALLBACK (say_word), (gpointer)"hypertext");
-      gtk_widget_add_controller (child, controller);
-      gtk_text_view_add_child_at_anchor (text_view, child, anchor);
-
-      gtk_text_buffer_insert (buffer, &iter, "\n"
-          "Machine-readable text that is not sequential but is organized "
-          "so that related items of information are connected.\n", -1);
+      gtk_text_buffer_insert_with_tags (buffer, &iter, "hypertext:\n", -1, tag, NULL);
+      gtk_text_buffer_insert (buffer, &iter,
+                              "machine-readable text that is not sequential but is organized "
+                              "so that related items of information are connected.\n", -1);
       insert_link (buffer, &iter, "Go back", 1);
     }
   gtk_text_buffer_end_irreversible_action (buffer);
@@ -181,7 +95,7 @@ follow_if_link (GtkWidget   *text_view,
 
       if (page != 0)
         {
-          show_page (GTK_TEXT_VIEW (text_view), page);
+          show_page (gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view)), page);
           break;
         }
     }
@@ -248,7 +162,7 @@ released_cb (GtkGestureClick *gesture,
   if (gtk_text_iter_get_offset (&start) != gtk_text_iter_get_offset (&end))
     return;
 
-  if (gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (text_view), &iter, tx, ty))
+  if (gtk_text_view_get_iter_at_location (GTK_TEXT_VIEW (text_view), &iter, x, y))
     follow_if_link (text_view, &iter);
 }
 
@@ -258,13 +172,7 @@ motion_cb (GtkEventControllerMotion *controller,
            double                    y,
            GtkTextView              *text_view)
 {
-  int tx, ty;
-
-  gtk_text_view_window_to_buffer_coords (text_view,
-                                         GTK_TEXT_WINDOW_WIDGET,
-                                         x, y, &tx, &ty);
-
-  set_cursor_if_appropriate (text_view, tx, ty);
+  set_cursor_if_appropriate (text_view, x, y);
 }
 
 static gboolean hovering_over_link = FALSE;
@@ -274,9 +182,9 @@ static gboolean hovering_over_link = FALSE;
  * typically used by web browsers.
  */
 static void
-set_cursor_if_appropriate (GtkTextView *text_view,
-                           int          x,
-                           int          y)
+set_cursor_if_appropriate (GtkTextView    *text_view,
+                           int             x,
+                           int             y)
 {
   GSList *tags = NULL, *tagp = NULL;
   GtkTextIter iter;
@@ -328,17 +236,13 @@ do_hypertext (GtkWidget *do_widget)
       gtk_window_set_title (GTK_WINDOW (window), "Hypertext");
       gtk_window_set_display (GTK_WINDOW (window),
                               gtk_widget_get_display (do_widget));
-      gtk_window_set_default_size (GTK_WINDOW (window), 330, 330);
-      gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
+      gtk_window_set_default_size (GTK_WINDOW (window), 450, 450);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
       view = gtk_text_view_new ();
       gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (view), GTK_WRAP_WORD);
-      gtk_text_view_set_top_margin (GTK_TEXT_VIEW (view), 20);
-      gtk_text_view_set_bottom_margin (GTK_TEXT_VIEW (view), 20);
       gtk_text_view_set_left_margin (GTK_TEXT_VIEW (view), 20);
       gtk_text_view_set_right_margin (GTK_TEXT_VIEW (view), 20);
-      gtk_text_view_set_pixels_below_lines (GTK_TEXT_VIEW (view), 10);
       controller = gtk_event_controller_key_new ();
       g_signal_connect (controller, "key-pressed", G_CALLBACK (key_pressed), view);
       gtk_widget_add_controller (view, controller);
@@ -363,7 +267,7 @@ do_hypertext (GtkWidget *do_widget)
       gtk_window_set_child (GTK_WINDOW (window), sw);
       gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), view);
 
-      show_page (GTK_TEXT_VIEW (view), 1);
+      show_page (buffer, 1);
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/iconscroll.c

@@ -1,5 +1,4 @@
 /* Benchmark/Scrolling
- * #Keywords: GtkScrolledWindow
  *
  * This demo scrolls a view with various content.
  */
@@ -13,7 +12,7 @@ static GtkWidget *window = NULL;
 static GtkWidget *scrolledwindow;
 static int selected;
 
-#define N_WIDGET_TYPES 7
+#define N_WIDGET_TYPES 6
 
 
 static int hincrement = 5;
@@ -177,24 +176,6 @@ populate_grid (void)
   gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (scrolledwindow), list);
 }
 
-extern GtkWidget *create_ucd_view (GtkWidget *label);
-
-static void
-populate_list2 (void)
-{
-  GtkWidget *list;
-
-  list = create_ucd_view (NULL);
-
-  hincrement = 0;
-  vincrement = 5;
-
-  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolledwindow),
-                                  GTK_POLICY_AUTOMATIC,
-                                  GTK_POLICY_AUTOMATIC);
-  gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (scrolledwindow), list);
-}
-
 static void
 set_widget_type (int type)
 {
@@ -234,11 +215,6 @@ set_widget_type (int type)
       break;
 
     case 5:
-      gtk_window_set_title (GTK_WINDOW (window), "Scrolling a columned list");
-      populate_list2 ();
-      break;
-
-    case 6:
       gtk_window_set_title (GTK_WINDOW (window), "Scrolling a grid");
       populate_grid ();
       break;
@@ -279,38 +255,12 @@ iconscroll_prev_clicked_cb (GtkButton *source,
   set_widget_type (new_index);
 }
 
-static gboolean
-update_fps (gpointer data)
-{
-  GtkWidget *label = data;
-  GdkFrameClock *frame_clock;
-  double fps;
-  char *str;
-
-  frame_clock = gtk_widget_get_frame_clock (label);
-
-  fps = gdk_frame_clock_get_fps (frame_clock);
-  str = g_strdup_printf ("%.2f fps", fps);
-  gtk_label_set_label (GTK_LABEL (label), str);
-  g_free (str);
-
-  return G_SOURCE_CONTINUE;
-}
-
-static void
-remove_timeout (gpointer data)
-{
-  g_source_remove (GPOINTER_TO_UINT (data));
-}
-
 G_MODULE_EXPORT GtkWidget *
 do_iconscroll (GtkWidget *do_widget)
 {
   if (!window)
     {
       GtkBuilder *builder;
-      GtkWidget *label;
-      guint id;
 
       builder = gtk_builder_new_from_resource ("/iconscroll/iconscroll.ui");
       window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
@@ -324,11 +274,6 @@ do_iconscroll (GtkWidget *do_widget)
       vadjustment = GTK_ADJUSTMENT (gtk_builder_get_object (builder, "vadjustment"));
       set_widget_type (0);
 
-      label = GTK_WIDGET (gtk_builder_get_object (builder, "fps_label"));
-      id = g_timeout_add (500, update_fps, label);
-      g_object_set_data_full (G_OBJECT (label), "timeout",
-                              GUINT_TO_POINTER (id), remove_timeout);
-
       g_object_unref (builder);
     }
 

demos/gtk-demo/iconscroll.ui

@@ -25,13 +25,6 @@
             </child>
           </object>
         </child>
-        <child type="end">
-          <object class="GtkLabel" id="fps_label">
-            <attributes>
-              <attribute name="font-features" value="tnum=1"/>
-            </attributes>
-          </object>
-        </child>
       </object>
     </child>
     <child>

demos/gtk-demo/images.c

@@ -1,5 +1,4 @@
 /* Images
- * #Keywords: GdkPaintable, GtkWidgetPaintable
  *
  * GtkImage and GtkPicture are used to display an image; the image can be
  * in a number of formats.
@@ -17,7 +16,6 @@
 #include <glib/gstdio.h>
 #include <stdio.h>
 #include <errno.h>
-#include "pixbufpaintable.h"
 
 static GtkWidget *window = NULL;
 static GdkPixbufLoader *pixbuf_loader = NULL;
@@ -57,7 +55,6 @@ progressive_updated_callback (GdkPixbufLoader *loader,
   picture = GTK_WIDGET (data);
 
   pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
-  gtk_picture_set_pixbuf (GTK_PICTURE (picture), NULL);
   gtk_picture_set_pixbuf (GTK_PICTURE (picture), pixbuf);
 }
 
@@ -264,7 +261,7 @@ start_progressive_loading (GtkWidget *picture)
    * The timeout simply simulates a slow data source by inserting
    * pauses in the reading process.
    */
-  load_timeout = g_timeout_add (300, progressive_timeout, picture);
+  load_timeout = g_timeout_add (1500, progressive_timeout, picture);
   g_source_set_name_by_id (load_timeout, "[gtk] progressive_timeout");
 }
 
@@ -347,8 +344,9 @@ do_images (GtkWidget *do_widget)
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
       gtk_box_append (GTK_BOX (hbox), vbox);
 
-      label = gtk_label_new ("Image from a resource");
-      gtk_widget_add_css_class (label, "heading");
+      label = gtk_label_new (NULL);
+      gtk_label_set_markup (GTK_LABEL (label),
+                            "<u>Image loaded from a file</u>");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
@@ -356,7 +354,7 @@ do_images (GtkWidget *do_widget)
       gtk_widget_set_valign (frame, GTK_ALIGN_CENTER);
       gtk_box_append (GTK_BOX (vbox), frame);
 
-      image = gtk_image_new_from_resource ("/images/org.gtk.Demo4.svg");
+      image = gtk_image_new_from_icon_name ("gtk3-demo");
       gtk_image_set_icon_size (GTK_IMAGE (image), GTK_ICON_SIZE_LARGE);
 
       gtk_frame_set_child (GTK_FRAME (frame), image);
@@ -364,8 +362,9 @@ do_images (GtkWidget *do_widget)
 
       /* Animation */
 
-      label = gtk_label_new ("Animation from a resource");
-      gtk_widget_add_css_class (label, "heading");
+      label = gtk_label_new (NULL);
+      gtk_label_set_markup (GTK_LABEL (label),
+                            "<u>Animation loaded from a file</u>");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
@@ -373,16 +372,15 @@ do_images (GtkWidget *do_widget)
       gtk_widget_set_valign (frame, GTK_ALIGN_CENTER);
       gtk_box_append (GTK_BOX (vbox), frame);
 
-      paintable = pixbuf_paintable_new_from_resource ("/images/floppybuddy.gif");
-      picture = gtk_picture_new_for_paintable (paintable);
-      g_object_unref (paintable);
+      picture = gtk_picture_new_for_resource ("/images/floppybuddy.gif");
 
       gtk_frame_set_child (GTK_FRAME (frame), picture);
 
       /* Symbolic icon */
 
-      label = gtk_label_new ("Symbolic themed icon");
-      gtk_widget_add_css_class (label, "heading");
+      label = gtk_label_new (NULL);
+      gtk_label_set_markup (GTK_LABEL (label),
+                            "<u>Symbolic themed icon</u>");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
@@ -401,8 +399,9 @@ do_images (GtkWidget *do_widget)
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
       gtk_box_append (GTK_BOX (hbox), vbox);
 
-      label = gtk_label_new ("Progressive image loading");
-      gtk_widget_add_css_class (label, "heading");
+      label = gtk_label_new (NULL);
+      gtk_label_set_markup (GTK_LABEL (label),
+                            "<u>Progressive image loading</u>");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
@@ -414,7 +413,6 @@ do_images (GtkWidget *do_widget)
        * will create the pixbuf and fill it in.
        */
       picture = gtk_picture_new ();
-      gtk_picture_set_alternative_text (GTK_PICTURE (picture), "A slowly loading image");
       gtk_frame_set_child (GTK_FRAME (frame), picture);
 
       start_progressive_loading (picture);
@@ -423,8 +421,9 @@ do_images (GtkWidget *do_widget)
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
       gtk_box_append (GTK_BOX (hbox), vbox);
 
-      label = gtk_label_new ("Displaying video");
-      gtk_widget_add_css_class (label, "heading");
+      label = gtk_label_new (NULL);
+      gtk_label_set_markup (GTK_LABEL (label),
+                            "<u>Displaying video</u>");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
@@ -440,8 +439,9 @@ do_images (GtkWidget *do_widget)
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
       gtk_box_append (GTK_BOX (hbox), vbox);
 
-      label = gtk_label_new ("GtkWidgetPaintable");
-      gtk_widget_add_css_class (label, "heading");
+      label = gtk_label_new (NULL);
+      gtk_label_set_markup (GTK_LABEL (label),
+                            "<u>GtkWidgetPaintable</u>");
       gtk_box_append (GTK_BOX (vbox), label);
 
       paintable = gtk_widget_paintable_new (do_widget);

demos/gtk-demo/infobar.c

@@ -1,5 +1,4 @@
 /* Info Bars
- * #Keywords: GtkInfoBar
  *
  * Info bar widgets are used to report important messages to the user.
  */

demos/gtk-demo/kaleidoscope.glsl

@@ -1,41 +0,0 @@
-uniform float progress;
-uniform sampler2D u_texture1;
-uniform sampler2D u_texture2;
-
-vec4 getFromColor (vec2 uv) {
-  return GskTexture(u_texture1, uv);
-}
-
-vec4 getToColor (vec2 uv) {
-  return GskTexture(u_texture2, uv);
-}
-
-// Source: https://gl-transitions.com/editor/kaleidoscope
-// Author: nwoeanhinnogaehr
-// License: MIT
-
-const float speed = 1.0;
-const float angle = 1.0;
-const float power = 1.5;
-
-vec4 transition(vec2 uv) {
-  vec2 p = uv.xy / vec2(1.0).xy;
-  vec2 q = p;
-  float t = pow(progress, power)*speed;
-  p = p -0.5;
-  for (int i = 0; i < 7; i++) {
-    p = vec2(sin(t)*p.x + cos(t)*p.y, sin(t)*p.y - cos(t)*p.x);
-    t += angle;
-    p = abs(mod(p, 2.0) - 1.0);
-  }
-  abs(mod(p, 1.0));
-  return mix(
-    mix(getFromColor(q), getToColor(q), progress),
-    mix(getFromColor(p), getToColor(p), progress), 1.0 - 2.0*abs(progress - 0.5));
-}
-
-
-void mainImage(out vec4 fragColor, in vec2 fragCoord, in vec2 resolution, in vec2 uv)
-{
-  fragColor = transition(uv);
-}

demos/gtk-demo/layoutmanager.c

@@ -1,5 +1,4 @@
 /* Layout Manager/Transition
- * #Keywords: GtkLayoutManager
  *
  * This demo shows a simple example of a custom layout manager
  * and a widget using it. The layout manager places the children
@@ -34,7 +33,7 @@ do_layoutmanager (GtkWidget *parent)
       int i;
 
       window = gtk_window_new ();
-      gtk_window_set_title (GTK_WINDOW (window), "Layout Manager — Transition");
+      gtk_window_set_title (GTK_WINDOW (window), "Layout Manager—Transition");
       gtk_window_set_default_size (GTK_WINDOW (window), 600, 600);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 

demos/gtk-demo/layoutmanager2.c

@@ -1,5 +1,4 @@
 /* Layout Manager/Transformation
- * #Keywords: GtkLayoutManager, GskTransform
  *
  * This demo shows how to use transforms in a nontrivial
  * way with a custom layout manager. The layout manager places
@@ -170,7 +169,7 @@ do_layoutmanager2 (GtkWidget *parent)
       int i;
 
       window = gtk_window_new ();
-      gtk_window_set_title (GTK_WINDOW (window), "Layout Manager — Transformation");
+      gtk_window_set_title (GTK_WINDOW (window), "Layout Manager—Transformation");
       gtk_window_set_default_size (GTK_WINDOW (window), 600, 620);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 

demos/gtk-demo/list_store.c

@@ -3,6 +3,7 @@
  * The GtkListStore is used to store data in list form, to be used
  * later on by a GtkTreeView to display it. This demo builds a
  * simple GtkListStore and displays it.
+ *
  */
 
 #include <gtk/gtk.h>

demos/gtk-demo/listbox.c

@@ -1,7 +1,8 @@
-/* List Box/Complex
+/* List Box/Complex list
  *
  * GtkListBox allows lists with complicated layouts, using
  * regular widgets supporting sorting and filtering.
+ *
  */
 
 #include <gtk/gtk.h>
@@ -197,7 +198,7 @@ gtk_message_row_update (GtkMessageRow *row)
 
   if (strcmp (priv->message->sender_nick, "@GTKtoolkit") == 0)
     {
-      gtk_image_set_from_icon_name (priv->avatar_image, "org.gtk.Demo4");
+      gtk_image_set_from_icon_name (priv->avatar_image, "gtk3-demo");
       gtk_image_set_icon_size (priv->avatar_image, GTK_ICON_SIZE_LARGE);
     }
   else
@@ -349,7 +350,7 @@ do_listbox (GtkWidget *do_widget)
       window = gtk_window_new ();
       gtk_window_set_display (GTK_WINDOW (window),
                               gtk_widget_get_display (do_widget));
-      gtk_window_set_title (GTK_WINDOW (window), "List Box — Complex");
+      gtk_window_set_title (GTK_WINDOW (window), "List Box");
       gtk_window_set_default_size (GTK_WINDOW (window), 400, 600);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 

demos/gtk-demo/listbox2.c

@@ -34,7 +34,7 @@ row_activated (GtkListBox    *list,
 }
 
 GtkWidget *
-do_listbox_controls (GtkWidget *do_widget)
+do_listbox2 (GtkWidget *do_widget)
 {
   if (!window)
     {
@@ -47,7 +47,7 @@ do_listbox_controls (GtkWidget *do_widget)
       builder = gtk_builder_new ();
       gtk_builder_set_scope (builder, scope);
 
-      gtk_builder_add_from_resource (builder, "/listbox_controls/listbox_controls.ui", NULL);
+      gtk_builder_add_from_resource (builder, "/listbox2/listbox2.ui", NULL);
 
       window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
       gtk_window_set_display (GTK_WINDOW (window),

demos/gtk-demo/listview_applauncher.c

@@ -1,5 +1,4 @@
 /* Lists/Application launcher
- * #Keywords: GtkListItemFactory, GListModel
  *
  * This demo uses the GtkListView widget as a fancy application launcher.
  *

demos/gtk-demo/listview_clocks.c

@@ -1,11 +1,10 @@
 /* Lists/Clocks
- * #Keywords: GtkGridView, GtkListItemFactory, GListModel
  *
  * This demo displays the time in different timezones.
  *
  * The goal is to show how to set up expressions that track changes
  * in objects and make them update widgets. For that, we create a
- * clock object that updates its time every second and then use
+ * GtkClock object that updates its time every second and then use
  * various ways to display that time.
  *
  * Typically, this will be done using GtkBuilder .ui files with the

demos/gtk-demo/listview_colors.c

@@ -1,5 +1,4 @@
 /* Lists/Colors
- * #Keywords: GtkSortListModel, GtkMultiSelection
  *
  * This demo displays a grid of colors.
  *
@@ -1023,31 +1022,31 @@ do_listview_colors (GtkWidget *do_widget)
       /* An empty multisorter doesn't do any sorting and the sortmodel is
        * smart enough to know that.
        */
-      sorter = GTK_SORTER (gtk_multi_sorter_new ());
+      sorter = gtk_multi_sorter_new ();
       set_title (sorter, "Unsorted");
       g_list_store_append (sorters, sorter);
       g_object_unref (sorter);
 
-      sorter = GTK_SORTER (gtk_string_sorter_new (gtk_property_expression_new (GTK_TYPE_COLOR, NULL, "name")));
+      sorter = gtk_string_sorter_new (gtk_property_expression_new (GTK_TYPE_COLOR, NULL, "name"));
       set_title (sorter, "Name");
       g_list_store_append (sorters, sorter);
       g_object_unref (sorter);
 
-      multi_sorter = GTK_SORTER (gtk_multi_sorter_new ());
+      multi_sorter = gtk_multi_sorter_new ();
 
-      sorter = GTK_SORTER (gtk_numeric_sorter_new (gtk_property_expression_new (GTK_TYPE_COLOR, NULL, "red")));
+      sorter = gtk_numeric_sorter_new (gtk_property_expression_new (GTK_TYPE_COLOR, NULL, "red"));
       gtk_numeric_sorter_set_sort_order (GTK_NUMERIC_SORTER (sorter), GTK_SORT_DESCENDING);
       set_title (sorter, "Red");
       g_list_store_append (sorters, sorter);
       gtk_multi_sorter_append (GTK_MULTI_SORTER (multi_sorter), sorter);
 
-      sorter = GTK_SORTER (gtk_numeric_sorter_new (gtk_property_expression_new (GTK_TYPE_COLOR, NULL, "green")));
+      sorter = gtk_numeric_sorter_new (gtk_property_expression_new (GTK_TYPE_COLOR, NULL, "green"));
       gtk_numeric_sorter_set_sort_order (GTK_NUMERIC_SORTER (sorter), GTK_SORT_DESCENDING);
       set_title (sorter, "Green");
       g_list_store_append (sorters, sorter);
       gtk_multi_sorter_append (GTK_MULTI_SORTER (multi_sorter), sorter);
 
-      sorter = GTK_SORTER (gtk_numeric_sorter_new (gtk_property_expression_new (GTK_TYPE_COLOR, NULL, "blue")));
+      sorter = gtk_numeric_sorter_new (gtk_property_expression_new (GTK_TYPE_COLOR, NULL, "blue"));
       gtk_numeric_sorter_set_sort_order (GTK_NUMERIC_SORTER (sorter), GTK_SORT_DESCENDING);
       set_title (sorter, "Blue");
       g_list_store_append (sorters, sorter);
@@ -1057,21 +1056,21 @@ do_listview_colors (GtkWidget *do_widget)
       g_list_store_append (sorters, multi_sorter);
       g_object_unref (multi_sorter);
 
-      multi_sorter = GTK_SORTER (gtk_multi_sorter_new ());
+      multi_sorter = gtk_multi_sorter_new ();
 
-      sorter = GTK_SORTER (gtk_numeric_sorter_new (gtk_property_expression_new (GTK_TYPE_COLOR, NULL, "hue")));
+      sorter = gtk_numeric_sorter_new (gtk_property_expression_new (GTK_TYPE_COLOR, NULL, "hue"));
       gtk_numeric_sorter_set_sort_order (GTK_NUMERIC_SORTER (sorter), GTK_SORT_DESCENDING);
       set_title (sorter, "Hue");
       g_list_store_append (sorters, sorter);
       gtk_multi_sorter_append (GTK_MULTI_SORTER (multi_sorter), sorter);
 
-      sorter = GTK_SORTER (gtk_numeric_sorter_new (gtk_property_expression_new (GTK_TYPE_COLOR, NULL, "saturation")));
+      sorter = gtk_numeric_sorter_new (gtk_property_expression_new (GTK_TYPE_COLOR, NULL, "saturation"));
       gtk_numeric_sorter_set_sort_order (GTK_NUMERIC_SORTER (sorter), GTK_SORT_DESCENDING);
       set_title (sorter, "Saturation");
       g_list_store_append (sorters, sorter);
       gtk_multi_sorter_append (GTK_MULTI_SORTER (multi_sorter), sorter);
 
-      sorter = GTK_SORTER (gtk_numeric_sorter_new (gtk_property_expression_new (GTK_TYPE_COLOR, NULL, "value")));
+      sorter = gtk_numeric_sorter_new (gtk_property_expression_new (GTK_TYPE_COLOR, NULL, "value"));
       gtk_numeric_sorter_set_sort_order (GTK_NUMERIC_SORTER (sorter), GTK_SORT_DESCENDING);
       set_title (sorter, "Value");
       g_list_store_append (sorters, sorter);

demos/gtk-demo/listview_filebrowser.c

@@ -1,5 +1,4 @@
 /* Lists/File browser
- * #Keywords: GListModel
  *
  * This demo shows off the different layouts that are quickly achievable
  * with GtkListview and GtkGridView by implementing a file browser with

demos/gtk-demo/listview_minesweeper.c

@@ -1,8 +1,7 @@
 /* Lists/Minesweeper
- * #Keywords: GtkGridView, GListModel, game
  *
  * This demo shows how to develop a user interface for small game using a
- * grid view.
+ * gridview.
  *
  * It demonstrates how to use the activate signal and single-press behavior
  * to implement rather different interaction behavior to a typical list.
@@ -429,7 +428,7 @@ sweeper_game_reveal_cell (SweeperGame *self,
   sweeper_game_check_finished (self);
 }
 
-G_MODULE_EXPORT void
+void
 minesweeper_cell_clicked_cb (GtkGridView *gridview,
                              guint        pos,
                              SweeperGame *game)
@@ -437,7 +436,7 @@ minesweeper_cell_clicked_cb (GtkGridView *gridview,
   sweeper_game_reveal_cell (game, pos);
 }
 
-G_MODULE_EXPORT void
+void
 minesweeper_new_game_cb (GtkButton   *button,
                          SweeperGame *game)
 {

demos/gtk-demo/listview_settings.c

@@ -1,5 +1,4 @@
 /* Lists/Settings
- * #Keywords: GtkListItemFactory, GListModel
  *
  * This demo shows a settings viewer for GSettings.
  *
@@ -248,7 +247,7 @@ transform_settings_to_keys (GBinding     *binding,
   sort_model = gtk_sort_list_model_new (G_LIST_MODEL (store),
                                         g_object_ref (gtk_column_view_get_sorter (GTK_COLUMN_VIEW (data))));
 
-  filter = GTK_FILTER (gtk_string_filter_new (gtk_property_expression_new (SETTINGS_TYPE_KEY, NULL, "name")));
+  filter = gtk_string_filter_new (gtk_property_expression_new (SETTINGS_TYPE_KEY, NULL, "name"));
   g_set_object (&current_filter, filter);
   filter_model = gtk_filter_list_model_new (G_LIST_MODEL (sort_model), filter);
 
@@ -418,7 +417,7 @@ do_listview_settings (GtkWidget *do_widget)
       g_object_unref (selection);
 
       name_column = GTK_COLUMN_VIEW_COLUMN (gtk_builder_get_object (builder, "name_column"));
-      sorter = GTK_SORTER (gtk_string_sorter_new (gtk_property_expression_new (SETTINGS_TYPE_KEY, NULL, "name")));
+      sorter = gtk_string_sorter_new (gtk_property_expression_new (SETTINGS_TYPE_KEY, NULL, "name"));
       gtk_column_view_column_set_sorter (name_column, sorter);
       g_object_unref (sorter);
 

demos/gtk-demo/listview_ucd.c

@@ -1,382 +0,0 @@
-/* Lists/Characters
- *
- * This demo shows a multi-column representation of some parts
- * of the Unicode Character Database, or UCD.
- *
- * The dataset used here has 33 796 items.
- */
-
-#include <gtk/gtk.h>
-#include "script-names.h"
-#include "unicode-names.h"
-
-
-#define UCD_TYPE_ITEM (ucd_item_get_type ())
-G_DECLARE_FINAL_TYPE (UcdItem, ucd_item, UCD, ITEM, GObject)
-
-struct _UcdItem
-{
-  GObject parent_instance;
-  gunichar codepoint;
-  const char *name;
-};
-
-struct _UcdItemClass
-{
-  GObjectClass parent_class;
-};
-
-G_DEFINE_TYPE (UcdItem, ucd_item, G_TYPE_OBJECT)
-
-static void
-ucd_item_init (UcdItem *item)
-{
-}
-
-static void
-ucd_item_class_init (UcdItemClass *class)
-{
-}
-
-static UcdItem *
-ucd_item_new (gunichar    codepoint,
-              const char *name)
-{
-  UcdItem *item;
-
-  item = g_object_new (UCD_TYPE_ITEM, NULL);
-
-  item->codepoint = codepoint;
-  item->name = name;
-
-  return item;
-}
-
-static gunichar
-ucd_item_get_codepoint (UcdItem *item)
-{
-  return item->codepoint;
-}
-
-static const char *
-ucd_item_get_name (UcdItem *item)
-{
-  return item->name;
-}
-
-static GListModel *
-ucd_model_new (void)
-{
-  GBytes *bytes;
-  GVariant *v;
-  GVariantIter *iter;
-  GListStore *store;
-  guint u;
-  char *name;
-
-  bytes = g_resources_lookup_data ("/listview_ucd_data/ucdnames.data", 0, NULL);
-  v = g_variant_ref_sink (g_variant_new_from_bytes (G_VARIANT_TYPE ("a(us)"), bytes, TRUE));
-
-  iter = g_variant_iter_new (v);
-
-  store = g_list_store_new (G_TYPE_OBJECT);
-  while (g_variant_iter_next (iter, "(u&s)", &u, &name))
-    {
-      if (u == 0)
-        continue;
-
-      UcdItem *item = ucd_item_new (u, name);
-      g_list_store_append (store, item);
-      g_object_unref (item);
-    }
-
-  g_variant_iter_free (iter);
-  g_variant_unref (v);
-  g_bytes_unref (bytes);
-
-  return G_LIST_MODEL (store);
-}
-
-static void
-setup_centered_label (GtkSignalListItemFactory *factory,
-                      GObject                  *listitem)
-{
-  GtkWidget *label;
-  label = gtk_label_new ("");
-  gtk_list_item_set_child (GTK_LIST_ITEM (listitem), label);
-}
-
-static void
-setup_label (GtkSignalListItemFactory *factory,
-             GObject                  *listitem)
-{
-  GtkWidget *label;
-  label = gtk_label_new ("");
-  gtk_label_set_xalign (GTK_LABEL (label), 0);
-  gtk_list_item_set_child (GTK_LIST_ITEM (listitem), label);
-}
-
-static void
-setup_ellipsizing_label (GtkSignalListItemFactory *factory,
-                         GObject                  *listitem)
-{
-  GtkWidget *label;
-  label = gtk_label_new ("");
-  gtk_label_set_xalign (GTK_LABEL (label), 0);
-  gtk_label_set_ellipsize (GTK_LABEL (label), PANGO_ELLIPSIZE_END);
-  gtk_label_set_width_chars (GTK_LABEL (label), 20);
-  gtk_list_item_set_child (GTK_LIST_ITEM (listitem), label);
-}
-
-static void
-bind_codepoint (GtkSignalListItemFactory *factory,
-                GObject                  *listitem)
-{
-  GtkWidget *label;
-  GObject *item;
-  gunichar codepoint;
-  char buffer[16] = { 0, };
-
-  label = gtk_list_item_get_child (GTK_LIST_ITEM (listitem));
-  item = gtk_list_item_get_item (GTK_LIST_ITEM (listitem));
-  codepoint = ucd_item_get_codepoint (UCD_ITEM (item));
-
-  g_snprintf (buffer, 10, "%#06x", codepoint);
-  gtk_label_set_label (GTK_LABEL (label), buffer);
-}
-
-static void
-bind_char (GtkSignalListItemFactory *factory,
-           GObject                  *listitem)
-{
-  GtkWidget *label;
-  GObject *item;
-  gunichar codepoint;
-  char buffer[16] = { 0, };
-
-  label = gtk_list_item_get_child (GTK_LIST_ITEM (listitem));
-  item = gtk_list_item_get_item (GTK_LIST_ITEM (listitem));
-  codepoint = ucd_item_get_codepoint (UCD_ITEM (item));
-
-  if (g_unichar_isprint (codepoint))
-    g_unichar_to_utf8 (codepoint, buffer);
-
-  gtk_label_set_label (GTK_LABEL (label), buffer);
-}
-
-static void
-bind_name (GtkSignalListItemFactory *factory,
-           GObject                  *listitem)
-{
-  GtkWidget *label;
-  GObject *item;
-  const char *name;
-
-  label = gtk_list_item_get_child (GTK_LIST_ITEM (listitem));
-  item = gtk_list_item_get_item (GTK_LIST_ITEM (listitem));
-  name = ucd_item_get_name (UCD_ITEM (item));
-
-  gtk_label_set_label (GTK_LABEL (label), name);
-}
-
-static void
-bind_type (GtkSignalListItemFactory *factory,
-           GObject                  *listitem)
-{
-  GtkWidget *label;
-  GObject *item;
-  gunichar codepoint;
-
-  label = gtk_list_item_get_child (GTK_LIST_ITEM (listitem));
-  item = gtk_list_item_get_item (GTK_LIST_ITEM (listitem));
-  codepoint = ucd_item_get_codepoint (UCD_ITEM (item));
-
-  gtk_label_set_label (GTK_LABEL (label), get_unicode_type_name (g_unichar_type (codepoint)));
-}
-
-static void
-bind_break_type (GtkSignalListItemFactory *factory,
-                 GObject                  *listitem)
-{
-  GtkWidget *label;
-  GObject *item;
-  gunichar codepoint;
-
-  label = gtk_list_item_get_child (GTK_LIST_ITEM (listitem));
-  item = gtk_list_item_get_item (GTK_LIST_ITEM (listitem));
-  codepoint = ucd_item_get_codepoint (UCD_ITEM (item));
-
-  gtk_label_set_label (GTK_LABEL (label), get_break_type_name (g_unichar_break_type (codepoint)));
-}
-
-static void
-bind_combining_class (GtkSignalListItemFactory *factory,
-                      GObject                  *listitem)
-{
-  GtkWidget *label;
-  GObject *item;
-  gunichar codepoint;
-
-  label = gtk_list_item_get_child (GTK_LIST_ITEM (listitem));
-  item = gtk_list_item_get_item (GTK_LIST_ITEM (listitem));
-  codepoint = ucd_item_get_codepoint (UCD_ITEM (item));
-
-  gtk_label_set_label (GTK_LABEL (label), get_combining_class_name (g_unichar_combining_class (codepoint)));
-}
-
-static void
-bind_script (GtkSignalListItemFactory *factory,
-             GObject                  *listitem)
-{
-  GtkWidget *label;
-  GObject *item;
-  gunichar codepoint;
-  GUnicodeScript script;
-
-  label = gtk_list_item_get_child (GTK_LIST_ITEM (listitem));
-  item = gtk_list_item_get_item (GTK_LIST_ITEM (listitem));
-  codepoint = ucd_item_get_codepoint (UCD_ITEM (item));
-  script = g_unichar_get_script (codepoint);
-
-  gtk_label_set_label (GTK_LABEL (label), get_script_name (script));
-}
-
-static void
-selection_changed (GObject    *object,
-                   GParamSpec *pspec,
-                   GtkWidget  *label)
-{
-  UcdItem *item;
-  guint codepoint;
-  char buffer[16] = { 0, };
-
-  item = gtk_single_selection_get_selected_item (GTK_SINGLE_SELECTION (object));
-  codepoint = ucd_item_get_codepoint (item);
-
-  if (g_unichar_isprint (codepoint))
-    g_unichar_to_utf8 (codepoint, buffer);
-
-  gtk_label_set_label (GTK_LABEL (label), buffer);
-}
-
-GtkWidget *
-create_ucd_view (GtkWidget *label)
-{
-  GtkWidget *cv;
-  GListModel *ucd_model;
-  GtkSingleSelection *selection;
-  GtkListItemFactory *factory;
-  GtkColumnViewColumn *column;
-
-  ucd_model = ucd_model_new ();
-
-  selection = gtk_single_selection_new (ucd_model);
-  gtk_single_selection_set_autoselect (selection, TRUE);
-  gtk_single_selection_set_can_unselect (selection, FALSE);
-  if (label)
-    g_signal_connect (selection, "notify::selected", G_CALLBACK (selection_changed), label);
-
-  cv = gtk_column_view_new (GTK_SELECTION_MODEL (selection));
-  gtk_column_view_set_show_column_separators (GTK_COLUMN_VIEW (cv), TRUE);
-
-  factory = gtk_signal_list_item_factory_new ();
-  g_signal_connect (factory, "setup", G_CALLBACK (setup_centered_label), NULL);
-  g_signal_connect (factory, "bind", G_CALLBACK (bind_codepoint), NULL);
-  column = gtk_column_view_column_new ("Codepoint", factory);
-  gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
-  g_object_unref (column);
-
-  factory = gtk_signal_list_item_factory_new ();
-  g_signal_connect (factory, "setup", G_CALLBACK (setup_centered_label), NULL);
-  g_signal_connect (factory, "bind", G_CALLBACK (bind_char), NULL);
-  column = gtk_column_view_column_new ("Char", factory);
-  gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
-  g_object_unref (column);
-
-  factory = gtk_signal_list_item_factory_new ();
-  g_signal_connect (factory, "setup", G_CALLBACK (setup_ellipsizing_label), NULL);
-  g_signal_connect (factory, "bind", G_CALLBACK (bind_name), NULL);
-  column = gtk_column_view_column_new ("Name", factory);
-  gtk_column_view_column_set_resizable (column, TRUE);
-  gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
-  g_object_unref (column);
-
-  factory = gtk_signal_list_item_factory_new ();
-  g_signal_connect (factory, "setup", G_CALLBACK (setup_ellipsizing_label), NULL);
-  g_signal_connect (factory, "bind", G_CALLBACK (bind_type), NULL);
-  column = gtk_column_view_column_new ("Type", factory);
-  gtk_column_view_column_set_resizable (column, TRUE);
-  gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
-  g_object_unref (column);
-
-  factory = gtk_signal_list_item_factory_new ();
-  g_signal_connect (factory, "setup", G_CALLBACK (setup_ellipsizing_label), NULL);
-  g_signal_connect (factory, "bind", G_CALLBACK (bind_break_type), NULL);
-  column = gtk_column_view_column_new ("Break Type", factory);
-  gtk_column_view_column_set_resizable (column, TRUE);
-  gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
-  g_object_unref (column);
-
-  factory = gtk_signal_list_item_factory_new ();
-  g_signal_connect (factory, "setup", G_CALLBACK (setup_label), NULL);
-  g_signal_connect (factory, "bind", G_CALLBACK (bind_combining_class), NULL);
-  column = gtk_column_view_column_new ("Combining Class", factory);
-  gtk_column_view_column_set_resizable (column, TRUE);
-  gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
-  g_object_unref (column);
-
-  factory = gtk_signal_list_item_factory_new ();
-  g_signal_connect (factory, "setup", G_CALLBACK (setup_label), NULL);
-  g_signal_connect (factory, "bind", G_CALLBACK (bind_script), NULL);
-  column = gtk_column_view_column_new ("Script", factory);
-  gtk_column_view_column_set_resizable (column, TRUE);
-  gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
-  g_object_unref (column);
-
-  return cv;
-}
-
-static GtkWidget *window;
-
-GtkWidget *
-do_listview_ucd (GtkWidget *do_widget)
-{
-  if (window == NULL)
-    {
-      GtkWidget *listview, *sw;
-      GtkWidget *box, *label;
-      GtkCssProvider *provider;
-
-      window = gtk_window_new ();
-      gtk_window_set_default_size (GTK_WINDOW (window), 800, 400);
-      gtk_window_set_title (GTK_WINDOW (window), "Characters");
-      gtk_window_set_display (GTK_WINDOW (window),
-                              gtk_widget_get_display (do_widget));
-      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *) &window);
-
-      box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
-      label = gtk_label_new ("");
-      gtk_label_set_width_chars (GTK_LABEL (label), 2);
-      gtk_widget_add_css_class (label, "enormous");
-      provider = gtk_css_provider_new ();
-      gtk_css_provider_load_from_data (provider, "label.enormous { font-size: 80px; }", -1);
-      gtk_style_context_add_provider (gtk_widget_get_style_context (label), GTK_STYLE_PROVIDER (provider), 800);
-      gtk_widget_set_hexpand (label, TRUE);
-      gtk_box_append (GTK_BOX (box), label);
-
-      sw = gtk_scrolled_window_new ();
-      gtk_scrolled_window_set_propagate_natural_width (GTK_SCROLLED_WINDOW (sw), TRUE);
-      listview = create_ucd_view (label);
-      gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), listview);
-      gtk_box_prepend (GTK_BOX (box), sw);
-      gtk_window_set_child (GTK_WINDOW (window), box);
-    }
-
-  if (!gtk_widget_get_visible (window))
-    gtk_widget_show (window);
-  else
-    gtk_window_destroy (GTK_WINDOW (window));
-
-  return window;
-}
-

demos/gtk-demo/listview_words.c

@@ -1,5 +1,4 @@
 /* Lists/Words
- * #Keywords: GtkListView, GtkFilterListModel
  *
  * This demo shows filtering a long list - of words.
  *
@@ -142,39 +141,16 @@ load_file (GtkStringList *list,
 }
 
 static void
-open_response_cb (GtkNativeDialog *dialog,
-                  int              response,
-                  GtkStringList   *stringlist)
+file_selected_cb (GtkWidget     *button,
+                  GtkStringList *stringlist)
 {
-  gtk_native_dialog_hide (dialog);
+  GFile *file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (button));
 
-  if (response == GTK_RESPONSE_ACCEPT)
+  if (file)
     {
-      GFile *file;
-
-      file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (dialog));
       load_file (stringlist, file);
       g_object_unref (file);
     }
-
-  gtk_native_dialog_destroy (dialog);
-}
-
-static void
-file_open_cb (GtkWidget     *button,
-              GtkStringList *stringlist)
-{
-  GtkFileChooserNative *dialog;
-
-  dialog = gtk_file_chooser_native_new ("Open file",
-                                        GTK_WINDOW (gtk_widget_get_root (button)),
-                                        GTK_FILE_CHOOSER_ACTION_OPEN,
-                                        "_Load",
-                                        "_Cancel");
-  gtk_native_dialog_set_modal (GTK_NATIVE_DIALOG (dialog), TRUE);
-
-  g_signal_connect (dialog, "response", G_CALLBACK (open_response_cb), stringlist);
-  gtk_native_dialog_show (GTK_NATIVE_DIALOG (dialog));
 }
 
 GtkWidget *
@@ -203,7 +179,7 @@ do_listview_words (GtkWidget *do_widget)
         }
       g_object_unref (file);
 
-      filter = GTK_FILTER (gtk_string_filter_new (gtk_property_expression_new (GTK_TYPE_STRING_OBJECT, NULL, "string")));
+      filter = gtk_string_filter_new (gtk_property_expression_new (GTK_TYPE_STRING_OBJECT, NULL, "string"));
       filter_model = gtk_filter_list_model_new (G_LIST_MODEL (stringlist), filter);
       gtk_filter_list_model_set_incremental (filter_model, TRUE);
 
@@ -212,8 +188,8 @@ do_listview_words (GtkWidget *do_widget)
 
       header = gtk_header_bar_new ();
       gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (header), TRUE);
-      open_button = gtk_button_new_with_mnemonic ("_Open");
-      g_signal_connect (open_button, "clicked", G_CALLBACK (file_open_cb), stringlist);
+      open_button = gtk_file_chooser_button_new ("_Open", GTK_FILE_CHOOSER_ACTION_OPEN);
+      g_signal_connect (open_button, "file-set", G_CALLBACK (file_selected_cb), stringlist);
       gtk_header_bar_pack_start (GTK_HEADER_BAR (header), open_button);
       gtk_window_set_titlebar (GTK_WINDOW (window), header);
 

demos/gtk-demo/main.c

@@ -1,17 +1,3 @@
-/* GTK Demo
- *
- * GTK Demo is a collection of useful examples to demonstrate
- * GTK widgets and features. It is a useful example in itself.
- *
- * You can select examples in the sidebar or search for them by
- * typing a search term. Double-clicking or hitting the “Run” button
- * will run the demo. The source code and other resources used in the
- * demo are shown in this area.
- *
- * You can also use the GTK Inspector, available from the menu on the
- * top right, to poke at the running demos, and see how they are put
- * together.
- */
 #include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -42,7 +28,6 @@ struct _GtkDemo
 
   const char *name;
   const char *title;
-  const char **keywords;
   const char *filename;
   GDoDemoFunc func;
   GListModel *children_model;
@@ -53,7 +38,6 @@ enum {
   PROP_FILENAME,
   PROP_NAME,
   PROP_TITLE,
-  PROP_KEYWORDS,
 
   N_PROPS
 };
@@ -86,10 +70,6 @@ gtk_demo_get_property (GObject    *object,
       g_value_set_string (value, self->title);
       break;
 
-    case PROP_KEYWORDS:
-      g_value_set_boxed (value, self->keywords);
-      break;
-
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
       break;
@@ -120,12 +100,6 @@ static void gtk_demo_class_init (GtkDemoClass *klass)
                          "title",
                          NULL,
                          G_PARAM_READABLE);
-  properties[PROP_KEYWORDS] =
-    g_param_spec_string ("keywords",
-                         "keywords",
-                         "keywords",
-                         NULL,
-                         G_PARAM_READABLE);
 
   g_object_class_install_properties (gobject_class, N_PROPS, properties);
 }
@@ -337,14 +311,16 @@ display_text (const char  *format,
 
   bytes = g_resources_lookup_data (resource, 0, NULL);
   g_assert (bytes);
-  text = g_bytes_get_data (bytes, &len);
-  g_assert (g_utf8_validate (text, len, NULL));
+
+  g_assert (g_utf8_validate (g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes), NULL));
 
   textview = gtk_text_view_new ();
-  gtk_text_view_set_left_margin (GTK_TEXT_VIEW (textview), 20);
-  gtk_text_view_set_right_margin (GTK_TEXT_VIEW (textview), 20);
-  gtk_text_view_set_top_margin (GTK_TEXT_VIEW (textview), 20);
-  gtk_text_view_set_bottom_margin (GTK_TEXT_VIEW (textview), 20);
+  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. */
@@ -354,8 +330,9 @@ display_text (const char  *format,
   gtk_text_view_set_monospace (GTK_TEXT_VIEW (textview), TRUE);
 
   buffer = gtk_text_buffer_new (NULL);
+
+  text = g_bytes_unref_to_data (bytes, &len);
   gtk_text_buffer_set_text (buffer, text, len);
-  g_bytes_unref (bytes);
 
   if (format)
     fontify (format, buffer);
@@ -390,7 +367,7 @@ display_nothing (const char *resource)
   GtkWidget *widget;
   char *str;
 
-  str = g_strdup_printf ("The contents of the resource at '%s' cannot be displayed", resource);
+  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_wrap (GTK_LABEL (widget), TRUE);
 
@@ -409,7 +386,6 @@ static struct {
   { ".gif", NULL, display_image },
   { ".jpg", NULL, display_image },
   { ".png", NULL, display_image },
-  { ".svg", NULL, display_image },
   { ".c", "c", display_text },
   { ".css", "css", display_text },
   { ".glsl", NULL, display_text },
@@ -605,9 +581,6 @@ load_file (const char *demoname,
               while (g_ascii_isspace (*(p + len - 1)))
                 len--;
 
-              if (*p == '#')
-                break;
-
               if (len > 0)
                 {
                   if (in_para)
@@ -683,7 +656,6 @@ selection_cb (GtkSingleSelection *sel,
 {
   GtkTreeListRow *row = gtk_single_selection_get_selected_item (sel);
   GtkDemo *demo;
-  GAction *action;
 
   gtk_widget_set_sensitive (GTK_WIDGET (notebook), !!row);
 
@@ -699,9 +671,6 @@ selection_cb (GtkSingleSelection *sel,
   if (demo->filename)
     load_file (demo->name, demo->filename);
 
-  action = g_action_map_lookup_action (G_ACTION_MAP (toplevel), "run");
-  g_simple_action_set_enabled (G_SIMPLE_ACTION (action), demo->func != NULL);
-
   gtk_window_set_title (GTK_WINDOW (toplevel), demo->title);
 }
 
@@ -719,21 +688,6 @@ filter_demo (GtkDemo *demo)
       if (g_str_match_string (search_needle[i], demo->title, TRUE))
         continue;
 
-      if (demo->keywords)
-        {
-          int j;
-          gboolean found = FALSE;
-
-          for (j = 0; !found && demo->keywords[j]; j++)
-            {
-              if (strstr (demo->keywords[j], search_needle[i]))
-                found = TRUE;
-            }
-
-          if (found)
-            continue;
-        }
-
       return FALSE;
     }
 
@@ -741,11 +695,9 @@ filter_demo (GtkDemo *demo)
 }
 
 static gboolean
-demo_filter_by_name (gpointer item,
-                     gpointer user_data)
+demo_filter_by_name (GtkTreeListRow     *row,
+                     GtkFilterListModel *model)
 {
-  GtkTreeListRow *row = item;
-  GtkFilterListModel *model = user_data;
   GListModel *children;
   GtkDemo *demo;
   guint i, n;
@@ -804,7 +756,7 @@ demo_search_changed_cb (GtkSearchEntry *entry,
   g_clear_pointer (&search_needle, g_strfreev);
 
   if (text && *text)
-    search_needle = g_str_tokenize_and_fold (text, NULL, NULL);
+    search_needle = g_strsplit (text, " ", 0);
 
   gtk_filter_changed (filter, GTK_FILTER_CHANGE_DIFFERENT);
 }
@@ -814,25 +766,14 @@ create_demo_model (void)
 {
   GListStore *store = g_list_store_new (GTK_TYPE_DEMO);
   DemoData *demo = gtk_demos;
-  GtkDemo *d;
-
-  d = GTK_DEMO (g_object_new (GTK_TYPE_DEMO, NULL));
-  d->name = "main";
-  d->title = "GTK Demo";
-  d->keywords = NULL;
-  d->filename = "main.c";
-  d->func = NULL;
-
-  g_list_store_append (store, d);
 
   while (demo->title)
     {
-      d = GTK_DEMO (g_object_new (GTK_TYPE_DEMO, NULL));
+      GtkDemo *d = GTK_DEMO (g_object_new (GTK_TYPE_DEMO, NULL));
       DemoData *children = demo->children;
 
       d->name = demo->name;
       d->title = demo->title;
-      d->keywords = demo->keywords;
       d->filename = demo->filename;
       d->func = demo->func;
 
@@ -848,7 +789,6 @@ create_demo_model (void)
 
               child->name = children->name;
               child->title = children->title;
-              child->keywords = children->keywords;
               child->filename = children->filename;
               child->func = children->func;
 
@@ -894,16 +834,18 @@ activate (GApplication *app)
   GtkWidget *window, *listview, *search_entry, *search_bar;
   GtkFilterListModel *filter_model;
   GtkFilter *filter;
-  GSimpleAction *action;
+
+  static GActionEntry win_entries[] = {
+    { "run", activate_run, NULL, NULL, NULL }
+  };
 
   builder = gtk_builder_new_from_resource ("/ui/main.ui");
 
   window = (GtkWidget *)gtk_builder_get_object (builder, "window");
   gtk_application_add_window (GTK_APPLICATION (app), GTK_WINDOW (window));
-
-  action = g_simple_action_new ("run", NULL);
-  g_signal_connect (action, "activate", G_CALLBACK (activate_run), window);
-  g_action_map_add_action (G_ACTION_MAP (window), G_ACTION (action));
+  g_action_map_add_action_entries (G_ACTION_MAP (window),
+                                   win_entries, G_N_ELEMENTS (win_entries),
+                                   window);
 
   notebook = GTK_WIDGET (gtk_builder_get_object (builder, "notebook"));
 
@@ -923,10 +865,9 @@ activate (GApplication *app)
                                        NULL,
                                        NULL);
   filter_model = gtk_filter_list_model_new (G_LIST_MODEL (treemodel), NULL);
-  filter = GTK_FILTER (gtk_custom_filter_new (demo_filter_by_name, filter_model, NULL));
+  filter = gtk_custom_filter_new ((GtkCustomFilterFunc)demo_filter_by_name, filter_model, NULL);
   gtk_filter_list_model_set_filter (filter_model, filter);
   g_object_unref (filter);
-
   search_entry = GTK_WIDGET (gtk_builder_get_object (builder, "search-entry"));
   g_signal_connect (search_entry, "search-changed", G_CALLBACK (demo_search_changed_cb), filter);
 

demos/gtk-demo/main.ui

@@ -17,6 +17,9 @@
     </section>
   </menu>
   <object class="GtkApplicationWindow" id="window">
+    <style>
+      <class name="devel"/>
+    </style>
     <property name="default-width">800</property>
     <property name="default-height">600</property>
     <child type="titlebar">
@@ -25,17 +28,14 @@
           <object class="GtkButton">
             <property name="valign">center</property>
             <property name="action-name">win.run</property>
-            <property name="label" translatable="yes">Run</property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkToggleButton">
-            <property name="icon-name">edit-find-symbolic</property>
-            <property name="valign">center</property>
-            <property name="active" bind-source="searchbar" bind-property="search-mode-enabled" bind-flags="bidirectional|sync-create"/>
-            <accessibility>
-              <property name="label" translatable="yes">Search</property>
-            </accessibility>
+            <style>
+              <class name="text-button"/>
+            </style>
+            <child>
+              <object class="GtkLabel">
+                <property name="label" translatable="yes">Run</property>
+              </object>
+            </child>
           </object>
         </child>
         <child type="end">
@@ -43,9 +43,6 @@
             <property name="valign">center</property>
             <property name="menu-model">gear_menu</property>
             <property name="icon-name">open-menu-symbolic</property>
-            <accessibility>
-              <property name="label" translatable="yes">Primary menu</property>
-            </accessibility>
           </object>
         </child>
       </object>
@@ -54,9 +51,6 @@
       <object class="GtkBox">
         <child>
           <object class="GtkScrolledWindow">
-            <style>
-              <class name="sidebar"/>
-            </style>
             <property name="width-request">120</property>
             <property name="hscrollbar-policy">never</property>
             <property name="min-content-width">150</property>
@@ -69,11 +63,7 @@
                   <object class="GtkSearchBar" id="searchbar">
                     <property name="key-capture-widget">window</property>
                     <child>
-                      <object class="GtkSearchEntry" id="search-entry">
-                        <accessibility>
-                          <relation name="controls">listview</relation>
-                        </accessibility>
-                      </object>
+                      <object class="GtkSearchEntry" id="search-entry"/>
                     </child>
                   </object>
                 </child>
@@ -88,10 +78,6 @@
                         <property name="resource">/ui/main-listitem.ui</property>
                       </object>
                     </property>
-                    <accessibility>
-                      <property name="label" translatable="yes">Demo list</property>
-                      <relation name="controls">notebook</relation>
-                    </accessibility>
                   </object>
                 </child>
 
@@ -99,6 +85,9 @@
             </child>
           </object>
         </child>
+        <child>
+          <object class="GtkSeparator"/>
+        </child>
         <child>
           <object class="GtkNotebook" id="notebook">
             <property name="scrollable">1</property>
@@ -117,16 +106,11 @@
                         <property name="right-margin">20</property>
                         <property name="top-margin">20</property>
                         <property name="bottom-margin">20</property>
-                        <property name="pixels-above-lines">6</property>
-                        <property name="pixels-below-lines">6</property>
-                        <property name="monospace">0</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>
-                        <accessibility>
-                          <property name="label" translatable="yes">Info</property>
-                          <property name="description" translatable="yes">A description of the demo</property>
-                        </accessibility>
                       </object>
                     </child>
                   </object>
@@ -157,10 +141,6 @@
                         <property name="wrap-mode">word</property>
                         <property name="pixels-above-lines">2</property>
                         <property name="pixels-below-lines">2</property>
-                        <accessibility>
-                          <property name="label" translatable="yes">Source</property>
-                          <property name="description" translatable="yes">The source code of the demo</property>
-                        </accessibility>
                       </object>
                     </child>
                   </object>

demos/gtk-demo/mandelbrot.glsl

@@ -1,95 +0,0 @@
-// Originally from: https://www.shadertoy.com/view/wdBfDK
-// License: CC0
-
-#define MANDELBROT_ZOOM_START 0.0
-#define MANDELBROT_ITER       240
-
-void pR(inout vec2 p, in float a) {
-  p = cos(a)*p + sin(a)*vec2(p.y, -p.x);
-}
-
-vec2 pMod2(inout vec2 p, in vec2 size) {
-  vec2 c = floor((p + size*0.5)/size);
-  p = mod(p + size*0.5,size) - size*0.5;
-  return c;
-}
-
-
-vec3 mandelbrot(float time, vec2 p, out float ii) {
-  vec3 col = vec3(0.0);
-
-  float ztime = (time - MANDELBROT_ZOOM_START)*step(MANDELBROT_ZOOM_START, time);
-
-  float zoo = 0.64 + 0.36*cos(.07*ztime);
-  float coa = cos(0.15*(1.0-zoo)*ztime);
-  float sia = sin(0.15*(1.0-zoo)*ztime);
-  zoo = pow(zoo,8.0);
-  vec2 xy = vec2( p.x*coa-p.y*sia, p.x*sia+p.y*coa);
-  vec2 c = vec2(-.745,.186) + xy*zoo;
-
-  const float B = 10.0;
-  float l = 0.0;
-  vec2 z  = vec2(0.0);
-
-  vec2 zc = vec2(1.0);
-
-  pR(zc, ztime);
-
-  float d = 1e20;
-
-  int i = 0;
-
-  for(int j = 0; j < MANDELBROT_ITER; ++j) {
-    float re2 = z.x*z.x;
-    float im2 = z.y*z.y;
-    float reim= z.x*z.y;
-
-    if(re2 + im2 > (B*B)) break;
-
-    z = vec2(re2 - im2, 2.0*reim) + c;
-
-    vec2 zm = z;
-    vec2 n = pMod2(zm, vec2(4));
-    vec2 pp = zm - zc;
-    float dd = dot(pp, pp);
-
-    d = min(d, dd);
-
-    l += 1.0;
-
-    i = j;
-  }
-
-  ii = float(i)/float(MANDELBROT_ITER);
-
-  float sl = l - log2(log2(dot(z,z))) + 4.0;
-
-  vec3 dc = vec3(pow(max(1.0 - d, 0.0), 20.0));
-  vec3 gc = 0.5 + 0.5*cos(3.0 + sl*0.15 + vec3(0.1,0.5,0.9));
-  return gc + dc*smoothstep(28.8, 29.0, ztime);
-}
-
-void mainImage(out vec4 fragColor, in vec2 fragCoord) {
-  float s = 2.0/iResolution.y;
-
-  vec2 o1 = vec2(1.0/8.0, 3.0/8.0)*s;
-  vec2 o2 = vec2(-3.0/8.0, 1.0/8.0)*s;
-
-  vec2 p = (-iResolution.xy + 2.0*fragCoord.xy)/iResolution.y;
-  float ii = 0.0;
-  vec3 col = mandelbrot(iTime, p+o1, ii);
-
-  // "smart" AA? Is that a good idea?
-  vec2 dii2 = vec2(dFdx(ii), dFdy(ii));
-  float dii = length(dii2);
-
-  if(abs(dii) > 0.01) {
-    col += mandelbrot(iTime, p-o1, ii);
-    col += mandelbrot(iTime, p+o2, ii);
-    col += mandelbrot(iTime, p-o2, ii);
-    col *=0.25;
-//    col = vec3(1.0, 0.0, 0.0);
-  }
-
-  fragColor = vec4(col, 1.0);
-}