widget benchmark: Add composite template benchmark

Mostly testing measuring when we hit the cache. Cache misses usually
require a hfw label.

.gitlab-ci.yml

@@ -1,43 +1,82 @@
 stages:
   - build
   - flatpak
+  - deploy
 
-gtk:
-  image: ebassi/gitlab-gtk:latest
+.cache-paths: &cache-paths
+  paths:
+    - _ccache/
+    - subprojects/gdk-pixbuf/
+    - subprojects/glib/
+    - subprojects/graphene/
+    - subprojects/libepoxy/
+    - subprojects/pango/
+
+fedora-x86_64:
+  image: registry.gitlab.gnome.org/gnome/gtk/master:v1
   stage: build
-  before_script:
-    - export CCACHE_DISABLE=true_
   script:
     - bash -x ./.gitlab-ci/test-docker.sh
-  cache:
-    paths:
-      - subprojects/gdk-pixbuf/
-      - subprojects/glib/
-      - subprojects/graphene/
-      - subprojects/libepoxy/
-      - subprojects/pango/
   artifacts:
     when: on_failure
     name: "gtk-${CI_COMMIT_REF_NAME}"
     paths:
       - "${CI_PROJECT_DIR}/_build/meson-logs"
+  cache:
+    key: "$CI_JOB_NAME"
+    <<: *cache-paths
+
+.mingw-defaults: &mingw-defaults
+  stage: build
+  tags:
+    - win32
+  script:
+    - C:\msys64\usr\bin\pacman --noconfirm -Syyuu
+    - C:\msys64\usr\bin\bash -lc "bash -x ./.gitlab-ci/test-msys2.sh"
+  cache:
+    key: "%CI_JOB_NAME%"
+    <<: *cache-paths
+
+msys2-mingw32:
+  variables:
+    MSYSTEM: "MINGW32"
+    CHERE_INVOKING: "yes"
+  <<: *mingw-defaults
+
+.flatpak-defaults: &flatpak-defaults
+  image: registry.gitlab.com/alatiera/gnome-nightly-oci/gnome-master:latest
+  stage: flatpak
+  artifacts:
+    paths:
+      - "${APPID}-dev.flatpak"
+    expire_in: 1 day
+  script:
+    - bash -x ./.gitlab-ci/flatpak-build.sh "${APPID}"
 
 flatpak:demo:
-  image: registry.gitlab.com/alatiera/gnome-nightly-oci/gnome-master:latest
-  stage: flatpak
-  script:
-    - bash -x ./.gitlab-ci/flatpak-build.sh org.gtk.Demo
-  artifacts:
-    paths:
-      - org.gtk.Demo-dev.flatpak
-    expire_in: 1 day
+  variables:
+    APPID: org.gtk.Demo
+  <<: *flatpak-defaults
 
 flatpak:widget-factory:
-  image: registry.gitlab.com/alatiera/gnome-nightly-oci/gnome-master:latest
-  stage: flatpak
+  variables:
+    APPID: org.gtk.WidgetFactory
+  <<: *flatpak-defaults
+
+pages:
+  image: registry.gitlab.gnome.org/gnome/gtk/master:v1
+  stage: deploy 
   script:
-    - bash -x ./.gitlab-ci/flatpak-build.sh org.gtk.WidgetFactory
+    - meson -Ddocumentation=true _build .
+    - ninja -C _build
+    - ninja -C _build gdk4-doc gsk4-doc gtk4-doc
+
+    - mkdir -p public/
+    - mv _build/docs/reference/gtk/html/ public/gtk/
+    - mv _build/docs/reference/gdk/html/ public/gdk/
+    - mv _build/docs/reference/gsk/html/ public/gsk/
   artifacts:
     paths:
-      - org.gtk.WidgetFactory-dev.flatpak
-    expire_in: 1 day
+      - public
+  only:
+    - master

.gitlab-ci/Dockerfile

@@ -1,4 +1,4 @@
-FROM fedora:27
+FROM fedora:28
 
 RUN dnf -y install \
     adwaita-icon-theme \
@@ -28,6 +28,7 @@ RUN dnf -y install \
     gstreamer1-plugins-good \
     gstreamer1-plugins-bad-free-devel \
     gstreamer1-plugins-base-devel \
+    gtk-doc \
     iso-codes \
     itstool \
     json-glib-devel \

.gitlab-ci/run-docker.sh

@@ -2,7 +2,7 @@
 
 set -e
 
-TAG="ebassi/gitlab-gtk:latest"
+TAG="registry.gitlab.gnome.org/gnome/gtk/master:v1"
 
 sudo docker build --build-arg HOST_USER_ID="$UID" --tag "${TAG}" \
     --file "Dockerfile" .

.gitlab-ci/test-docker.sh

@@ -4,16 +4,25 @@ set -e
 
 srcdir=$(pwd)
 
+mkdir -p _ccache
+export CCACHE_BASEDIR="$(pwd)"
+export CCACHE_DIR="${CCACHE_BASEDIR}/_ccache"
+
+ccache --zero-stats
+ccache --show-stats
+export CCACHE_DISABLE=true
 meson \
         -Dx11-backend=true \
         -Dwayland-backend=true \
         -Dbroadway-backend=true \
         -Dvulkan=yes \
         _build $srcdir
+unset CCACHE_DISABLE
 
 cd _build
 
 ninja
+ccache --show-stats
 
 xvfb-run -a -s "-screen 0 1024x768x24" \
     meson test \

.gitlab-ci/test-msys2.sh

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

.gitlab/issue_templates/Bug.md

@@ -23,17 +23,14 @@
 
 ## Version information
 <!--
- - which version of GTK+ you are using
- - what operating system and version
-  - for Linux, which distribution
- - if you built GTK+ yourself, the list of options used to configure the build
+ - Which version of GTK+ you are using
+ - What operating system and version
+  - For Linux, which distribution
+ - If you built GTK+ yourself, the list of options used to configure the build
 -->
 
 ## Additional information
 <!--
- - If the bug was a crash, the exact text that was printed out
-   when the crash occurred.
- - If the bug was a crash, attaching a stack trace obtained using
-   GDB is appreciated; follow the instructions on the wiki:
-   https://wiki.gnome.org/Community/GettingInTouch/Bugzilla/GettingTraces
--->
+ - Screenshots or screen recordings are useful for visual errors
+ - Please report any warning or message printed on the terminal
+-->

.gitlab/issue_templates/Crash.md

@@ -0,0 +1,34 @@
+## Steps to reproduce
+
+ 1. ...
+ 2. ...
+ 3. ...
+
+<!--
+  You should try and reproduce with the demos applications available
+  under the `demos` directory, or the test programs in the `tests` directory.
+  Alternatively, please attach a *small and self-contained* example that
+  exhibits the issue.
+-->
+
+## Version information
+<!--
+ - Which version of GTK+ you are using
+ - What operating system and version
+  - for Linux, which distribution
+ - If you built GTK+ yourself, the list of options used to configure the build
+-->
+
+## Warnings
+<!--
+ - If the application generates warning messages before crashing please
+   report them here
+-->
+
+## Backtrace
+<!--
+ - Attaching a stack trace obtained using GDB is appreciated; follow the
+   instructions on the wiki:
+
+   https://wiki.gnome.org/Community/GettingInTouch/Bugzilla/GettingTraces
+-->

CONTRIBUTING.md

@@ -60,4 +60,6 @@ $ git checkout -b your-branch
 
 Once you've finished working on the bug fix or feature, push the branch
 to the Git repository and open a new merge request, to let the GTK
-maintainers review your contribution.
+maintainers review your contribution. The [CODE-OWNERS](./docs-CODE-OWNERS)
+document contains the list of core contributors to GTK and the areas for
+which they are responsible.

NEWS

@@ -1,3 +1,87 @@
+Overview of Changes in GTK+ 3.94.0
+==================================
+
+* GdkPaintable is a new, powerful abstraction for drawable content.
+  gtk4-demo has a new "Paint" demo to show some of its capabilities.
+
+* There is support for displaying media, with
+  GtkVideo
+  GtkMediaFile
+  GtkMediaStream
+  GtkMediaControls
+
+* GtkFontChooser now supports OpenType font variations and features.
+
+* The Ctrl-Shift-E support in the simple IM context has been replaced
+  by an optional completion popup for Emoji alpha codes. This can be
+  enabled with the GtkEntry::enable-emoji-completion property.
+
+* Wayland has an input method based on the text protocol now
+
+* Input methods, print backends and media backends have been converted
+  to GIOModules and extension points, and support for generic loadable
+  modules has been dropped. Platform im modules are always included.
+
+* GdkWindow has been renamed to GdkSurface.
+
+* Applications can now create their own GtkSnapshot objects for
+  intermediate rendering.
+
+* Widget event signals have been replaced by event controller, and
+  some new event controllers have been introduced for this:
+  GtkEventControllerMotion
+  GtkEventControllerKey
+  GtkGestureStylus
+
+* Event controllers can now be created in .ui files.
+
+* Invalidation tracking has been changed, only gtk_widget_queue_draw is left.
+
+* Observing widget contents and size is now done by using the
+  GtkWidgetPaintable object instead of connecting to widget signals.
+
+* The GtkWidget::draw signal has been removed, widgets need
+  to implement GtkWidget::snapshot.
+
+* GdkTexture now has GdkMemoryTexture and GdkGLTexture subclasses.
+
+* The Vulkan support in GDK can now use a particular device that is
+  specified by the GDK_VULKAN_DEVICE environment variable. use
+  GDK_VULKAN_DEVICE=list to see them all.
+
+* GTK+ Inspector
+  - has logging support, and the logging settings have been cleaned up
+  - has an fps overlay
+
+* Removed APIs and features:
+  Individual event signals such as ::proximity-in-event
+  The ::draw signal
+  threading support
+  non-platform IM modules
+  papi and test print backends
+  GtkPlacesSidebar
+  GtkRecentChooser
+  GtkToolPalette
+  GdkStatus
+  gtk_true, gtk_false
+  gtk_widget_show_now
+  gtk_widget_draw
+  gtk_render_icon_surface
+
+* Translation updates:
+ Croatian
+ Esperanto
+ Estonian
+ French
+ Friulian
+ Icelandic
+ Latvian
+ Polish
+ Russian
+ Scottish Gaelic
+ Spanish
+
+
 Overview of Changes in GTK+ 3.93.0
 ==================================
 

benchmarks/benchmark.h

@@ -0,0 +1,156 @@
+
+#ifndef __GTK_BENCHMARK_H__
+#define __GTK_BENCHMARK_H__
+
+#include <valgrind/callgrind.h>
+#include <glib.h>
+
+#define SAMPLE_SIZE 5
+
+
+typedef struct _Benchmark Benchmark;
+typedef void (*BenchmarkFunc)(Benchmark *b, gsize size, gpointer user_data);
+
+struct _Benchmark
+{
+  char *name;
+  gint64 start_time;
+  gint64 end_time;
+  gsize size;
+  BenchmarkFunc func;
+  guint profile : 1;
+  gpointer data;
+};
+
+static void
+benchmark_destroy (Benchmark *b)
+{
+  g_free (b->name);
+}
+
+static void
+benchmark_start (Benchmark *b)
+{
+  b->start_time = g_get_monotonic_time ();
+
+  if (b->profile)
+    CALLGRIND_START_INSTRUMENTATION;
+}
+
+static void
+benchmark_stop (Benchmark *b)
+{
+  if (b->profile)
+    CALLGRIND_STOP_INSTRUMENTATION;
+
+  b->end_time = g_get_monotonic_time ();
+}
+
+typedef struct
+{
+  GArray *benchmarks;
+  char *profile_benchmark_name;
+} BenchmarkSuite;
+
+static void
+benchmark_suite_init (BenchmarkSuite *bs,
+                      const char     *profile_benchmark_name)
+{
+  bs->benchmarks = g_array_new (FALSE, TRUE, sizeof (Benchmark));
+  g_array_set_clear_func (bs->benchmarks, (GDestroyNotify)benchmark_destroy);
+  bs->profile_benchmark_name = (char *)profile_benchmark_name; // XXX strdup
+
+  g_assert (SAMPLE_SIZE % 2 == 1);
+}
+
+static void
+benchmark_suite_add (BenchmarkSuite *bs,
+                     const char     *benchmark_name,
+                     gsize           size,
+                     BenchmarkFunc   benchmark_func,
+                     gpointer        user_data)
+{
+  Benchmark *b;
+
+  g_array_set_size (bs->benchmarks, bs->benchmarks->len + 1);
+  b = &g_array_index (bs->benchmarks, Benchmark, bs->benchmarks->len - 1);
+
+  b->name = (char *)benchmark_name; /* XXX strdup? */
+  b->size = size;
+  b->func = benchmark_func;
+  b->data = user_data;
+}
+
+static int
+benchmark_suite_run (BenchmarkSuite *bs)
+{
+  const guint n_benchmarks = bs->benchmarks->len;
+  const gboolean profile = bs->profile_benchmark_name != NULL;
+  guint i;
+
+  if (profile)
+    {
+      /* For profiling, we only run the selected benchmark. */
+      gboolean found = FALSE;
+
+
+      for (i = 0; i < n_benchmarks; i ++)
+        {
+          Benchmark *b = &g_array_index (bs->benchmarks, Benchmark, i);
+
+          if (strcmp (bs->profile_benchmark_name, b->name) == 0)
+            {
+              b->profile = TRUE;
+              b->func (b, b->size, b->data);
+              found = TRUE;
+              break;
+            }
+        }
+
+      if (!found)
+        g_error ("No benchmark '%s' found", bs->profile_benchmark_name);
+    }
+  else
+    {
+      for (i = 0; i < n_benchmarks; i ++)
+        {
+          gint64 samples[SAMPLE_SIZE];
+          Benchmark *b = &g_array_index (bs->benchmarks, Benchmark, i);
+          int s, x, y;
+
+          for (s = 0; s < SAMPLE_SIZE; s ++)
+            {
+              b->start_time = 0;
+              b->end_time = 0;
+
+              b->func (b, b->size, b->data);
+
+              if (b->start_time == 0)
+                g_error ("Benchmark '%s' did not call benchmark_start()", b->name);
+
+              if (b->end_time == 0)
+                g_error ("Benchmark '%s' did not call benchmark_stop()", b->name);
+
+              samples[s] = b->end_time - b->start_time;
+            }
+
+          /* Bubble sort \o/ */
+          for (x = 0; x < SAMPLE_SIZE; x ++)
+            for (y = 0; y < SAMPLE_SIZE; y ++)
+              if (samples[x] < samples[y])
+                {
+                  int k = samples[x];
+                  samples[x] = samples[y];
+                  samples[y] = k;
+                }
+
+          /* Median of SAMPLE_SIZE */
+          printf ("%s (%" G_GSIZE_FORMAT ") |  %.2fms\n", b->name, b->size,
+                  samples[SAMPLE_SIZE / 2 + 1] / 1000.0);
+        }
+    }
+
+  return 0;
+}
+
+#endif

benchmarks/containers.c

@@ -0,0 +1,237 @@
+#include <gtk/gtk.h>
+#include "benchmark.h"
+
+/* Command line options */
+const char *profile_benchmark_name = NULL;
+
+static GOptionEntry options[] = {
+  { "profile", 'p', 0, G_OPTION_ARG_STRING, &profile_benchmark_name, "Benchmark name to profile using callgrind", NULL },
+  { NULL }
+};
+
+typedef struct
+{
+  GType type;
+} ContainerData;
+
+/*
+ *  PROFILING:
+ *
+ *  valgrind --tool=callgrind --instr-atstart=no benchmarks/name --profile="benchmark name"
+ *
+ *  ENJOY.
+ */
+
+static void
+container_create_benchmark (Benchmark *b,
+                            gsize      size,
+                            gpointer   user_data)
+{
+  ContainerData *data = user_data;
+  guint i;
+  GtkWidget **widgets = g_malloc (sizeof (GtkWidget*) * size);
+
+  benchmark_start (b);
+  for (i = 0; i < size; i ++)
+    widgets[i] = g_object_new (data->type, NULL);
+  benchmark_stop (b);
+
+  g_free (widgets);
+}
+
+static void
+container_destroy_benchmark (Benchmark *b,
+                             gsize      size,
+                             gpointer   user_data)
+{
+  ContainerData *data = user_data;
+  guint i;
+  GtkWidget **widgets = g_malloc (sizeof (GtkWidget*) * size);
+
+  for (i = 0; i < size; i ++)
+    {
+      widgets[i] = g_object_new (data->type, NULL);
+      g_object_ref_sink (widgets[i]);
+    }
+
+  benchmark_start (b);
+  for (i = 0; i < size; i ++)
+    g_object_unref (widgets[i]);
+  benchmark_stop (b);
+
+  g_free (widgets);
+}
+
+static void
+container_add_benchmark (Benchmark *b,
+                         gsize      size,
+                         gpointer   user_data)
+{
+  ContainerData *data = user_data;
+  guint i;
+  GtkWidget *container;
+  GtkWidget **buttons = g_malloc (sizeof (GtkWidget*) * size);
+
+  for (i = 0; i < size; i ++)
+    buttons[i] = gtk_button_new ();
+
+  container = g_object_new (data->type, NULL);
+
+  benchmark_start (b);
+
+  for (i = 0; i < size; i ++)
+    gtk_container_add ((GtkContainer *)container, buttons[i]);
+
+  benchmark_stop (b);
+
+  g_free (buttons);
+}
+
+static void
+container_remove_benchmark (Benchmark *b,
+                            gsize      size,
+                            gpointer   user_data)
+{
+  ContainerData *data = user_data;
+  guint i;
+  GtkWidget *container;
+  GtkWidget **buttons = g_malloc (sizeof (GtkWidget*) * size);
+
+  for (i = 0; i < size; i ++)
+    {
+      buttons[i] = gtk_button_new ();
+      /* We add an extra ref here so the later remove() does NOT dispose the buttons. */
+      g_object_ref_sink (buttons[i]);
+      g_object_ref (buttons[i]);
+    }
+
+  container = g_object_new (data->type, NULL);
+
+  for (i = 0; i < size; i ++)
+    gtk_container_add ((GtkContainer *)container, buttons[i]);
+
+  benchmark_start (b);
+
+  for (i = 0; i < size; i ++)
+    gtk_container_remove ((GtkContainer *)container, buttons[i]);
+
+  benchmark_stop (b);
+
+  g_free (buttons);
+}
+
+static void
+container_measure_benchmark (Benchmark *b,
+                             gsize      size,
+                             gpointer   user_data)
+{
+  ContainerData *data = user_data;
+  guint i;
+  GtkWidget *container;
+  GtkWidget **buttons = g_malloc (sizeof (GtkWidget*) * size);
+
+  for (i = 0; i < size; i ++)
+    buttons[i] = gtk_button_new ();
+
+  container = g_object_new (data->type, NULL);
+
+  for (i = 0; i < size; i ++)
+    gtk_container_add ((GtkContainer *)container, buttons[i]);
+
+  benchmark_start (b);
+
+  gtk_widget_measure (container, GTK_ORIENTATION_HORIZONTAL, -1,
+                      NULL, NULL, NULL, NULL);
+
+  benchmark_stop (b);
+
+  g_free (buttons);
+}
+
+static void
+container_allocate_benchmark (Benchmark *b,
+                              gsize      size,
+                              gpointer   user_data)
+{
+  ContainerData *data = user_data;
+  guint i;
+  GtkWidget *container;
+  GtkWidget **buttons = g_malloc (sizeof (GtkWidget*) * size);
+  int width, height;
+
+  for (i = 0; i < size; i ++)
+    buttons[i] = gtk_button_new ();
+
+  container = g_object_new (data->type, NULL);
+
+  for (i = 0; i < size; i ++)
+    gtk_container_add ((GtkContainer *)container, buttons[i]);
+
+
+  gtk_widget_measure (container, GTK_ORIENTATION_HORIZONTAL, -1,
+                      &width, NULL, NULL, NULL);
+  gtk_widget_measure (container, GTK_ORIENTATION_VERTICAL, width,
+                      &height, NULL, NULL, NULL);
+
+  benchmark_start (b);
+  gtk_widget_size_allocate (container,
+                            &(GtkAllocation){0, 0, width, height},
+                            -1);
+  benchmark_stop (b);
+
+  g_free (buttons);
+}
+
+int
+main (int argc, char **argv)
+{
+  BenchmarkSuite suite;
+  GOptionContext *option_context;
+  GError *error = NULL;
+  const GType types[] = {
+    GTK_TYPE_BOX,
+    GTK_TYPE_GRID,
+    GTK_TYPE_STACK,
+/*    GTK_TYPE_NOTEBOOK, XXX too slow! :( */
+  };
+  int i;
+  int N = 10000;
+
+  option_context = g_option_context_new ("");
+  g_option_context_add_main_entries (option_context, options, NULL);
+  if (!g_option_context_parse (option_context, &argc, &argv, &error))
+    {
+      g_printerr ("Option parsing failed: %s\n", error->message);
+      return 1;
+    }
+
+  benchmark_suite_init (&suite, profile_benchmark_name);
+  gtk_init ();
+
+  for (i = 0; i < G_N_ELEMENTS (types); i ++)
+    {
+      ContainerData *data = g_malloc (sizeof (ContainerData));
+      data->type = types[i];
+
+      benchmark_suite_add (&suite,
+                           g_strdup_printf ("%s create", g_type_name (types[i])),
+                           N, container_create_benchmark, data);
+      benchmark_suite_add (&suite,
+                           g_strdup_printf ("%s destroy", g_type_name (types[i])),
+                           N, container_destroy_benchmark, data);
+      benchmark_suite_add (&suite,
+                           g_strdup_printf ("%s add", g_type_name (types[i])),
+                           N, container_add_benchmark, data);
+      benchmark_suite_add (&suite,
+                           g_strdup_printf ("%s remove", g_type_name (types[i])),
+                           N, container_remove_benchmark, data);
+      benchmark_suite_add (&suite,
+                           g_strdup_printf ("%s measure", g_type_name (types[i])),
+                           N, container_measure_benchmark, data);
+      benchmark_suite_add (&suite,
+                           g_strdup_printf ("%s allocate", g_type_name (types[i])),
+                           N, container_allocate_benchmark, data);
+    }
+
+  return benchmark_suite_run (&suite);
+}

benchmarks/css.c

@@ -0,0 +1,77 @@
+#include <gtk/gtk.h>
+#include "benchmark.h"
+
+/* Command line options */
+const char *profile_benchmark_name = NULL;
+static GOptionEntry options[] = {
+  { "profile", 'p', 0, G_OPTION_ARG_STRING, &profile_benchmark_name, "Benchmark name to profile using callgrind", NULL },
+  { NULL }
+};
+
+
+static void
+css_compute_benchmark (Benchmark *b,
+                       gsize      size,
+                       gpointer   user_data)
+{
+  GtkWidget **widgets = g_malloc (sizeof (GtkWidget *) * size);
+  GtkWidget *box;
+  GtkWidget *scroller;
+  GtkWidget *window;
+  GdkFrameClock *frame_clock;
+  guint i;
+
+  box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+
+  for (i = 0; i < size; i ++)
+    {
+      widgets[i] = gtk_label_new ("foo");
+      /*widgets[i] = gtk_button_new ();*/
+      gtk_container_add (GTK_CONTAINER (box), widgets[i]);
+    }
+
+  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  scroller = gtk_scrolled_window_new (NULL, NULL);
+  gtk_container_add (GTK_CONTAINER (scroller), box);
+  gtk_container_add (GTK_CONTAINER (window), scroller);
+
+  gtk_widget_realize (window);
+  frame_clock = gtk_widget_get_frame_clock (window);
+  g_assert (frame_clock != NULL);
+
+  gtk_widget_show (window);
+  g_signal_connect (frame_clock, "layout", G_CALLBACK (gtk_main_quit), NULL);
+
+  benchmark_start (b);
+  gtk_main ();
+  benchmark_stop (b);
+
+  gtk_widget_hide (window);
+  gtk_widget_destroy (window);
+
+  g_free (widgets);
+}
+
+
+int
+main (int argc, char **argv)
+{
+  BenchmarkSuite suite;
+  GOptionContext *option_context;
+  GError *error = NULL;
+
+  option_context = g_option_context_new ("");
+  g_option_context_add_main_entries (option_context, options, NULL);
+  if (!g_option_context_parse (option_context, &argc, &argv, &error))
+    {
+      g_printerr ("Option parsing failed: %s\n", error->message);
+      return 1;
+    }
+
+  benchmark_suite_init (&suite, profile_benchmark_name);
+  gtk_init ();
+
+  benchmark_suite_add (&suite, "css compute", 10000, css_compute_benchmark, NULL);
+
+  return benchmark_suite_run (&suite);
+}

benchmarks/meson.build

@@ -0,0 +1,21 @@
+
+# benchmark name, optional extra sources
+gtk_benchmarks = [
+  ['containers'],
+  ['css'],
+  ['widget'],
+  ['renderers'],
+]
+
+foreach b : gtk_benchmarks
+  b_name = b.get(0)
+  b_sources = ['@0@.c'.format(b_name), b.get(1, [])]
+  b_exec = executable (
+    b_name,
+    b_sources,
+    include_directories: [confinc, gdkinc],
+    dependencies: [libgtk_dep, libm]
+  )
+  benchmark(b_name, b_exec)
+
+endforeach

benchmarks/renderers.c

@@ -0,0 +1,275 @@
+#include <gtk/gtk.h>
+#include "benchmark.h"
+
+/* Command line options */
+const char *profile_benchmark_name = NULL;
+static GOptionEntry options[] = {
+  { "profile", 'p', 0, G_OPTION_ARG_STRING, &profile_benchmark_name, "Benchmark name to profile using callgrind", NULL },
+  { NULL }
+};
+
+
+static void
+borders_benchmark (Benchmark *b,
+                   gsize      size,
+                   gpointer   user_data)
+{
+  GskRenderer *renderer = user_data;
+  GskRenderNode *root_node;
+  GskRenderNode **child_nodes;
+  guint i;
+
+  child_nodes = g_malloc (sizeof (GskRenderNode *) * size);
+  for (i = 0; i < size; i ++)
+    {
+      GskRoundedRect outline;
+
+      gsk_rounded_rect_init (&outline,
+                             &GRAPHENE_RECT_INIT (0, 0, 1920, 1080),
+                             &(graphene_size_t){4, 4},
+                             &(graphene_size_t){4, 4},
+                             &(graphene_size_t){4, 4},
+                             &(graphene_size_t){4, 4});
+
+      child_nodes[i] = gsk_border_node_new (&outline,
+                                            (float[4]){2, 2, 2 ,2},   /* Widths */
+                                            (GdkRGBA[4]) { /* Colors */
+                                              {1, 0, 0, 1},
+                                              {1, 0, 0, 1},
+                                              {1, 0, 0, 1},
+                                              {1, 0, 0, 1},
+                                            });
+    }
+
+  root_node = gsk_container_node_new (child_nodes, size);
+
+  for (i = 0; i < size; i ++)
+    gsk_render_node_unref (child_nodes[i]);
+
+  benchmark_start (b);
+  gsk_renderer_render_texture (renderer, root_node, NULL);
+  benchmark_stop (b);
+
+  g_free (child_nodes);
+  gsk_render_node_unref (root_node);
+}
+
+static void
+outset_shadows_unblurred_benchmark (Benchmark *b,
+                                    gsize      size,
+                                    gpointer   user_data)
+{
+  GskRenderer *renderer = user_data;
+  GskRenderNode *root_node;
+  GskRenderNode **child_nodes;
+  GdkTexture *texture;
+  guint i;
+
+  child_nodes = g_malloc (sizeof (GskRenderNode *) * size);
+  for (i = 0; i < size; i ++)
+    {
+      GskRoundedRect outline;
+
+      gsk_rounded_rect_init (&outline,
+                             &GRAPHENE_RECT_INIT (0, 0, 1920, 1080),
+                             &(graphene_size_t){4, 4},
+                             &(graphene_size_t){4, 4},
+                             &(graphene_size_t){4, 4},
+                             &(graphene_size_t){4, 4});
+
+      child_nodes[i] = gsk_outset_shadow_node_new (&outline,
+                                                   &(GdkRGBA){0, 0, 0, 1},
+                                                   0, 0, /* Offset */
+                                                   10, /* Spread */
+                                                   0); /* Blur */
+    }
+
+
+  root_node = gsk_container_node_new (child_nodes, size);
+
+  for (i = 0; i < size; i ++)
+    gsk_render_node_unref (child_nodes[i]);
+
+  benchmark_start (b);
+  texture = gsk_renderer_render_texture (renderer, root_node, NULL);
+  g_object_unref (texture);
+  benchmark_stop (b);
+
+  g_free (child_nodes);
+  gsk_render_node_unref (root_node);
+}
+
+static void
+outset_shadows_blurred_benchmark (Benchmark *b,
+                                  gsize      size,
+                                  gpointer   user_data)
+{
+  GskRenderer *renderer = user_data;
+  GskRenderNode *root_node;
+  GskRenderNode **child_nodes;
+  GdkTexture *texture;
+  guint i;
+
+  child_nodes = g_malloc (sizeof (GskRenderNode *) * size);
+  for (i = 0; i < size; i ++)
+    {
+      GskRoundedRect outline;
+
+      gsk_rounded_rect_init (&outline,
+                             &GRAPHENE_RECT_INIT (0, 0, 1920, 1080),
+                             &(graphene_size_t){4, 4},
+                             &(graphene_size_t){4, 4},
+                             &(graphene_size_t){4, 4},
+                             &(graphene_size_t){4, 4});
+
+      child_nodes[i] = gsk_outset_shadow_node_new (&outline,
+                                                   &(GdkRGBA){0, 0, 0, 1},
+                                                   0, 0, /* Offset */
+                                                   10, /* Spread */
+                                                   10); /* Blur */
+    }
+
+  root_node = gsk_container_node_new (child_nodes, size);
+  for (i = 0; i < size; i ++)
+    gsk_render_node_unref (child_nodes[i]);
+
+
+  benchmark_start (b);
+  texture = gsk_renderer_render_texture (renderer, root_node, NULL);
+  g_object_unref (texture);
+  benchmark_stop (b);
+
+  g_free (child_nodes);
+  gsk_render_node_unref (root_node);
+}
+
+static void
+linear_gradient_benchmark (Benchmark *b,
+                           gsize      size,
+                           gpointer   user_data)
+{
+  GskRenderer *renderer = user_data;
+  GskRenderNode *root_node;
+  GskRenderNode **child_nodes;
+  GdkTexture *texture;
+  guint i;
+
+  child_nodes = g_malloc (sizeof (GskRenderNode *) * size);
+  for (i = 0; i < size; i ++)
+    {
+      if (i % 2 == 0)
+        child_nodes[i] = gsk_linear_gradient_node_new (&GRAPHENE_RECT_INIT (0, 0, 1920, 1080),
+                                                       &(graphene_point_t){0, 0},
+                                                       &(graphene_point_t){0, 20},
+                                                       (GskColorStop[3]) {
+                                                         {0.0, (GdkRGBA){1, 0, 0, 1}},
+                                                         {0.5, (GdkRGBA){0, 1, 0, 1}},
+                                                         {1.0, (GdkRGBA){0, 0, 1, 1}},
+                                                       }, 3);
+      else
+        child_nodes[i] = gsk_linear_gradient_node_new (&GRAPHENE_RECT_INIT (0, 0, 1920, 1080),
+                                                       &(graphene_point_t){0, 0},
+                                                       &(graphene_point_t){20, 20},
+                                                       (GskColorStop[3]) {
+                                                         {0.0, (GdkRGBA){1, 0, 0, 1}},
+                                                         {0.5, (GdkRGBA){0, 1, 1, 1}},
+                                                         {1.0, (GdkRGBA){1, 0, 1, 1}},
+                                                       }, 3);
+
+    }
+
+  root_node = gsk_container_node_new (child_nodes, size);
+  for (i = 0; i < size; i ++)
+    gsk_render_node_unref (child_nodes[i]);
+
+
+  benchmark_start (b);
+  texture = gsk_renderer_render_texture (renderer, root_node, NULL);
+  g_object_unref (texture);
+  benchmark_stop (b);
+
+  g_free (child_nodes);
+  gsk_render_node_unref (root_node);
+}
+
+int
+main (int argc, char **argv)
+{
+  BenchmarkSuite suite;
+  GOptionContext *option_context;
+  GError *error = NULL;
+  static const struct {
+    const char *type_name;
+    const char *renderer_name;
+  } renderers[] = {
+    {"GskCairoRenderer",  "cairo"},
+    {"GskGLRenderer",     "opengl"},
+#ifdef GDK_RENDERING_VULKAN
+    {"GskVulkanRenderer", "vulkan"},
+#endif
+  };
+  guint i;
+
+  option_context = g_option_context_new ("");
+  g_option_context_add_main_entries (option_context, options, NULL);
+  if (!g_option_context_parse (option_context, &argc, &argv, &error))
+    {
+      g_printerr ("Option parsing failed: %s\n", error->message);
+      return 1;
+    }
+
+  benchmark_suite_init (&suite, profile_benchmark_name);
+  gtk_init ();
+
+  for (i = 0; i < G_N_ELEMENTS (renderers); i ++)
+    {
+      GskRenderer *renderer;
+      GdkSurface *surface;
+      gsize s = 0;
+
+      g_setenv ("GSK_RENDERER", renderers[i].renderer_name, TRUE);
+
+      surface = gdk_surface_new_toplevel (gdk_display_get_default (), 10, 10);
+      renderer = gsk_renderer_new_for_surface (surface);
+
+      if (strcmp (g_type_name (G_OBJECT_TYPE (renderer)), renderers[i].type_name) != 0)
+        {
+          g_message ("%s != %s, skipping...",
+                     g_type_name (G_OBJECT_TYPE (renderer)),
+                     renderers[i].type_name);
+          continue;
+        }
+
+      for (s = 2; s < 256; s *= 2)
+        {
+          /* All the benchmarks for this renderer type */
+          benchmark_suite_add (&suite,
+                               g_strdup_printf ("%s borders", renderers[i].renderer_name),
+                               s,
+                               borders_benchmark,
+                               renderer);
+          benchmark_suite_add (&suite,
+                               g_strdup_printf ("%s outset shadows unblurred", renderers[i].renderer_name),
+                               s,
+                               outset_shadows_unblurred_benchmark,
+                               renderer);
+          benchmark_suite_add (&suite,
+                               g_strdup_printf ("%s outset shadows blurred", renderers[i].renderer_name),
+                               s,
+                               outset_shadows_blurred_benchmark,
+                               renderer);
+          benchmark_suite_add (&suite,
+                               g_strdup_printf ("%s linear gradient", renderers[i].renderer_name),
+                               s,
+                               linear_gradient_benchmark,
+                               renderer);
+        }
+
+      /* XXX We can't do this here of course since the renderers have to live until
+       * benchmark_suite_run is done. */
+      /*g_object_unref (renderer);*/
+      /*g_object_unref (surface);*/
+    }
+
+  return benchmark_suite_run (&suite);
+}

benchmarks/widget.c

@@ -0,0 +1,260 @@
+#include <gtk/gtk.h>
+#include "benchmark.h"
+
+/* Command line options */
+const char *profile_benchmark_name = NULL;
+static GOptionEntry options[] = {
+  { "profile", 'p', 0, G_OPTION_ARG_STRING, &profile_benchmark_name, "Benchmark name to profile using callgrind", NULL },
+  { NULL }
+};
+
+
+static void
+set_parent_benchmark (Benchmark *b,
+                      gsize      size,
+                      gpointer   user_data)
+{
+  guint i;
+  GtkWidget *w;
+  GtkWidget **widgets;
+
+  widgets = g_malloc (sizeof (GtkWidget *) * size);
+  w = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+
+  for (i = 0; i < size; i ++)
+    {
+      widgets[i] = gtk_button_new ();
+    }
+
+  benchmark_start (b);
+  for (i = 0; i < size; i ++)
+    {
+      gtk_widget_set_parent (widgets[i], w);
+    }
+  benchmark_stop (b);
+
+
+  g_free (widgets);
+}
+
+static void
+reorder_benchmark (Benchmark *b,
+                   gsize      size,
+                   gpointer   user_data)
+{
+  guint i;
+  GtkWidget *w;
+  GtkWidget **widgets;
+
+  widgets = g_malloc (sizeof (GtkWidget *) * size);
+  w = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+
+  for (i = 0; i < size; i ++)
+    {
+      widgets[i] = gtk_button_new ();
+      gtk_widget_set_parent (widgets[i], w);
+    }
+
+  benchmark_start (b);
+  for (i = 0; i < size; i ++)
+    {
+      /* Move this child to the very end */
+      gtk_widget_insert_before (widgets[i], w, NULL);
+    }
+  benchmark_stop (b);
+
+  g_free (widgets);
+}
+
+static void
+get_size_benchmark (Benchmark *b,
+                    gsize      size,
+                    gpointer   user_data)
+{
+  guint i;
+  GtkWidget *w;
+  int width, height;
+  int button_width;
+  int button_height;
+
+  w = gtk_button_new ();
+
+  gtk_widget_measure (w, GTK_ORIENTATION_HORIZONTAL, -1, &width, NULL, NULL, NULL);
+  gtk_widget_measure (w, GTK_ORIENTATION_VERTICAL, width, &height, NULL, NULL, NULL);
+
+  button_width = 200 + width;
+  button_height = 300 + height;
+
+  gtk_widget_size_allocate (w,
+                            &(GtkAllocation){0, 0, button_width, button_height}, -1);
+
+  benchmark_start (b);
+  for (i = 0; i < size; i ++)
+    {
+      width = gtk_widget_get_width (w);
+      height = gtk_widget_get_height (w);
+    }
+  benchmark_stop (b);
+
+  g_assert_cmpint (width, <=, button_width);
+  g_assert_cmpint (height, <=, button_height);
+}
+
+
+static void
+compute_bounds_benchmark (Benchmark *b,
+                          gsize      size,
+                          gpointer   user_data)
+{
+  guint i;
+  GtkWidget *w;
+  int width, height;
+  int button_width;
+  int button_height;
+
+  w = gtk_button_new ();
+
+  gtk_widget_measure (w, GTK_ORIENTATION_HORIZONTAL, -1, &width, NULL, NULL, NULL);
+  gtk_widget_measure (w, GTK_ORIENTATION_VERTICAL, width, &height, NULL, NULL, NULL);
+
+  button_width = 200 + width;
+  button_height = 300 + height;
+
+  gtk_widget_size_allocate (w,
+                            &(GtkAllocation){0, 0, button_width, button_height}, -1);
+
+  benchmark_start (b);
+  for (i = 0; i < size; i ++)
+    {
+      graphene_rect_t r;
+
+      gtk_widget_compute_bounds (w, w, &r);
+    }
+  benchmark_stop (b);
+}
+
+static void
+translate_coords_benchmark (Benchmark *b,
+                            gsize      size,
+                            gpointer   user_data)
+{
+  guint i;
+  GtkWidget *root;
+  GtkWidget *widget_a;
+  GtkWidget *widget_b;
+  GtkWidget *iter;
+  int x = 0;
+  int y = 0;
+
+  /* Create an unbalanced widget tree with depth @size on one side and
+   * depth 1 on the other. */
+
+  root = gtk_button_new ();
+  widget_a = gtk_button_new ();
+  widget_b = gtk_button_new ();
+
+  iter = root;
+  for (i = 0; i < size; i ++)
+    {
+      GtkWidget *w = gtk_button_new ();
+
+      gtk_widget_set_parent (w, iter);
+      iter = w;
+    }
+
+  gtk_widget_set_parent (widget_a, root);
+  gtk_widget_set_parent (widget_b, iter);
+
+  /* This will create all the CSS styles, which is the actual slow part... */
+  gtk_widget_translate_coordinates (widget_a, widget_b, x, y, &x, &y);
+
+  benchmark_start (b);
+  for (i = 0; i < size; i ++)
+    {
+      x = 0;
+      y = 0;
+
+      gtk_widget_translate_coordinates (widget_a, widget_b, x, y, &x, &y);
+    }
+  benchmark_stop (b);
+}
+
+static void
+measure_benchmark (Benchmark *b,
+                   gsize      size,
+                   gpointer   user_data)
+{
+  guint i;
+  GtkWidget *root;
+  int min;
+
+  /* Create an unbalanced widget tree with depth @size on one side and
+   * depth 1 on the other. */
+
+  root = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+
+  for (i = 0; i < size; i ++)
+    {
+      GtkWidget *w = gtk_button_new ();
+
+      gtk_container_add (GTK_CONTAINER (root), w);
+    }
+
+  gtk_widget_measure (root, GTK_ORIENTATION_HORIZONTAL, -1, &min, NULL, NULL, NULL);
+
+  benchmark_start (b);
+  for (i = 0; i < size; i ++)
+    {
+      gtk_widget_measure (root, GTK_ORIENTATION_HORIZONTAL, min + i, &min, NULL, NULL, NULL);
+    }
+  benchmark_stop (b);
+}
+
+static void
+templates_benchmark (Benchmark *b,
+                     gsize      size,
+                     gpointer   user_data)
+{
+  guint i;
+  GtkWidget **widgets = g_malloc (sizeof (GtkWidget *)  * size);
+
+  /* Just load some widget using composite templates a bunch of times. */
+
+  benchmark_start (b);
+  for (i = 0; i < size; i ++)
+    {
+      widgets[i] = gtk_info_bar_new ();
+    }
+  benchmark_stop (b);
+
+  g_free (widgets);
+}
+
+int
+main (int argc, char **argv)
+{
+  BenchmarkSuite suite;
+  GOptionContext *option_context;
+  GError *error = NULL;
+
+  option_context = g_option_context_new ("");
+  g_option_context_add_main_entries (option_context, options, NULL);
+  if (!g_option_context_parse (option_context, &argc, &argv, &error))
+    {
+      g_printerr ("Option parsing failed: %s\n", error->message);
+      return 1;
+    }
+
+  benchmark_suite_init (&suite, profile_benchmark_name);
+  gtk_init ();
+
+  benchmark_suite_add (&suite, "set_parent", 10000, set_parent_benchmark, NULL);
+  benchmark_suite_add (&suite, "reorder", 10000, reorder_benchmark, NULL);
+  benchmark_suite_add (&suite, "get_size", 10000, get_size_benchmark, NULL);
+  benchmark_suite_add (&suite, "compute_bounds", 10000, compute_bounds_benchmark, NULL);
+  benchmark_suite_add (&suite, "translate_coords", 1000, translate_coords_benchmark, NULL);
+  benchmark_suite_add (&suite, "measure", 10000, measure_benchmark, NULL);
+  benchmark_suite_add (&suite, "templates", 10000, templates_benchmark, NULL);
+
+  return benchmark_suite_run (&suite);
+}

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

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

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

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

config.h.meson

@@ -286,6 +286,10 @@
 /* Define to 1 if linux/memfd.h exists */
 #mesondefine HAVE_LINUX_MEMFD_H
 
+#mesondefine HAVE_LINUX_INPUT_H
+
+#mesondefine HAVE_DEV_EVDEV_INPUT_H
+
 #mesondefine GTK_SYSCONFDIR
 
 #mesondefine GTK_LOCALEDIR

demos/gtk-demo/application.c

@@ -457,13 +457,12 @@ demo_application_window_constructed (GObject *object)
 static void
 demo_application_window_size_allocate (GtkWidget           *widget,
                                        const GtkAllocation *allocation,
-                                       int                  baseline,
-                                       GtkAllocation       *out_clip)
+                                       int                  baseline)
 {
   DemoApplicationWindow *window = (DemoApplicationWindow *)widget;
 
   GTK_WIDGET_CLASS (demo_application_window_parent_class)->size_allocate (widget, allocation,
-                                                                          baseline, out_clip);
+                                                                          baseline);
 
   if (!window->maximized && !window->fullscreen)
     gtk_window_get_size (GTK_WINDOW (window), &window->width, &window->height);

demos/gtk-demo/clipboard.c

@@ -321,10 +321,10 @@ do_clipboard (GtkWidget *do_widget)
                         G_CALLBACK (drag_data_received), image);
 
       /* context menu on image */
-      gesture = gtk_gesture_multi_press_new (image);
+      gesture = gtk_gesture_multi_press_new ();
       gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), GDK_BUTTON_SECONDARY);
-      g_object_set_data_full (G_OBJECT (image), "gesture", gesture, g_object_unref);
       g_signal_connect (gesture, "pressed", G_CALLBACK (pressed_cb), image);
+      gtk_widget_add_controller (image, GTK_EVENT_CONTROLLER (gesture));
 
       /* Create the second image */
       image = gtk_image_new_from_icon_name ("process-stop");
@@ -346,10 +346,10 @@ do_clipboard (GtkWidget *do_widget)
                         G_CALLBACK (drag_data_received), image);
 
       /* context menu on image */
-      gesture = gtk_gesture_multi_press_new (image);
+      gesture = gtk_gesture_multi_press_new ();
       gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), GDK_BUTTON_SECONDARY);
-      g_object_set_data_full (G_OBJECT (image), "gesture", gesture, g_object_unref);
       g_signal_connect (gesture, "pressed", G_CALLBACK (pressed_cb), image);
+      gtk_widget_add_controller (image, GTK_EVENT_CONTROLLER (gesture));
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/demo.gresource.xml

@@ -160,7 +160,6 @@
     <file>expander.c</file>
     <file>filtermodel.c</file>
     <file>fishbowl.c</file>
-    <file>widgetbowl.c</file>
     <file>flowbox.c</file>
     <file>foreigndrawing.c</file>
     <file>font_features.c</file>
@@ -181,6 +180,7 @@
     <file>modelbutton.c</file>
     <file>overlay.c</file>
     <file>overlay2.c</file>
+    <file>paint.c</file>
     <file>pagesetup.c</file>
     <file>paintable.c</file>
     <file>paintable_animated.c</file>

demos/gtk-demo/dnd.c

@@ -356,10 +356,11 @@ do_dnd (GtkWidget *do_widget)
       gtk_widget_set_hexpand (fixed, TRUE);
       gtk_widget_set_vexpand (fixed, TRUE);
 
-      multipress = gtk_gesture_multi_press_new (fixed);
+      multipress = gtk_gesture_multi_press_new ();
       gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (multipress), 0);
       g_signal_connect (multipress, "pressed", G_CALLBACK (pressed_cb), NULL);
       g_signal_connect (multipress, "released", G_CALLBACK (released_cb), NULL);
+      gtk_widget_add_controller (fixed, GTK_EVENT_CONTROLLER (multipress));
 
       provider = gtk_css_provider_new ();
       gtk_css_provider_load_from_resource (provider, "/dnd/dnd.css");

demos/gtk-demo/drawingarea.c

@@ -86,7 +86,7 @@ draw_brush (GtkWidget *widget,
 
   cairo_destroy (cr);
 
-  gtk_widget_queue_draw_area (widget, update_rect.x, update_rect.y, update_rect.width, update_rect.height);
+  gtk_widget_queue_draw (widget);
 }
 
 static double start_x;
@@ -244,13 +244,14 @@ do_drawingarea (GtkWidget *do_widget)
       g_signal_connect (da, "size-allocate",
                         G_CALLBACK (scribble_size_allocate), NULL);
 
-      drag = gtk_gesture_drag_new (da);
+      drag = gtk_gesture_drag_new ();
       gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (drag), GDK_BUTTON_PRIMARY);
-      g_object_set_data_full (G_OBJECT (da), "drag", drag, g_object_unref);
+      gtk_widget_add_controller (da, GTK_EVENT_CONTROLLER (drag));
 
       g_signal_connect (drag, "drag-begin", G_CALLBACK (drag_begin), da);
       g_signal_connect (drag, "drag-update", G_CALLBACK (drag_update), da);
       g_signal_connect (drag, "drag-end", G_CALLBACK (drag_end), da);
+
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/event_axes.c

@@ -581,8 +581,7 @@ init_pad_controller (GtkWidget *window,
   gint i;
 
   action_group = g_simple_action_group_new ();
-  pad_controller = gtk_pad_controller_new (GTK_WINDOW (window),
-                                           G_ACTION_GROUP (action_group),
+  pad_controller = gtk_pad_controller_new (G_ACTION_GROUP (action_group),
                                            NULL);
 
   for (i = 0; i < G_N_ELEMENTS (pad_actions); i++)
@@ -607,8 +606,7 @@ init_pad_controller (GtkWidget *window,
 
   gtk_pad_controller_set_action_entries (pad_controller, pad_actions,
                                          G_N_ELEMENTS (pad_actions));
-  g_object_set_data_full (G_OBJECT (window), "pad-controller",
-                          pad_controller, g_object_unref);
+  gtk_widget_add_controller (window, GTK_EVENT_CONTROLLER (pad_controller));
 
   g_object_unref (action_group);
 }

demos/gtk-demo/fishbowl.c

@@ -8,165 +8,268 @@
 #include <gtk/gtk.h>
 
 #include "gtkfishbowl.h"
+#include "gtkgears.h"
 
-GtkWidget *allow_changes;
+const char *const css =
+".blurred-button {"
+"  box-shadow: 0px 0px 5px 10px rgba(0, 0, 0, 0.5);"
+"}"
+"";
 
-#define N_STATS 5
+char **icon_names = NULL;
+gsize n_icon_names = 0;
 
-#define STATS_UPDATE_TIME G_USEC_PER_SEC
+static void
+init_icon_names (GtkIconTheme *theme)
+{
+  GPtrArray *icons;
+  GList *l, *icon_list;
 
-typedef struct _Stats Stats;
-struct _Stats {
-  gint64 last_stats;
-  gint64 last_frame;
-  gint last_suggestion;
-  guint frame_counter_max;
+  if (icon_names)
+    return;
 
-  guint stats_index;
-  guint frame_counter[N_STATS];
-  guint item_counter[N_STATS];
+  icon_list = gtk_icon_theme_list_icons (theme, NULL);
+  icons = g_ptr_array_new ();
+
+  for (l = icon_list; l; l = l->next)
+    {
+      if (g_str_has_suffix (l->data, "symbolic"))
+        continue;
+
+      g_ptr_array_add (icons, g_strdup (l->data));
+    }
+
+  n_icon_names = icons->len;
+  g_ptr_array_add (icons, NULL); /* NULL-terminate the array */
+  icon_names = (char **) g_ptr_array_free (icons, FALSE);
+
+  /* don't free strings, we assigned them to the array */
+  g_list_free_full (icon_list, g_free);
+}
+
+static const char *
+get_random_icon_name (GtkIconTheme *theme)
+{
+  init_icon_names (theme);
+
+  return icon_names[g_random_int_range(0, n_icon_names)];
+}
+
+GtkWidget *
+create_icon (void)
+{
+  GtkWidget *image;
+
+  image = gtk_image_new_from_icon_name (get_random_icon_name (gtk_icon_theme_get_default ()));
+  gtk_image_set_icon_size (GTK_IMAGE (image), GTK_ICON_SIZE_LARGE);
+
+  return image;
+}
+
+static GtkWidget *
+create_button (void)
+{
+  return gtk_button_new_with_label ("Button");
+}
+
+static GtkWidget *
+create_blurred_button (void)
+{
+  GtkWidget *w = gtk_button_new ();
+
+  gtk_style_context_add_class (gtk_widget_get_style_context (w), "blurred-button");
+
+  return w;
+}
+
+static GtkWidget *
+create_font_button (void)
+{
+  return gtk_font_button_new ();
+}
+
+static GtkWidget *
+create_level_bar (void)
+{
+  GtkWidget *w = gtk_level_bar_new_for_interval (0, 100);
+
+  gtk_level_bar_set_value (GTK_LEVEL_BAR (w), 50);
+
+  /* Force them to be a bit larger */
+  gtk_widget_set_size_request (w, 200, -1);
+
+  return w;
+}
+
+static GtkWidget *
+create_spinner (void)
+{
+  GtkWidget *w = gtk_spinner_new ();
+
+  gtk_spinner_start (GTK_SPINNER (w));
+
+  return w;
+}
+
+static GtkWidget *
+create_spinbutton (void)
+{
+  GtkWidget *w = gtk_spin_button_new_with_range (0, 10, 1);
+
+  return w;
+}
+
+static GtkWidget *
+create_label (void)
+{
+  GtkWidget *w = gtk_label_new ("pLorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua.");
+
+  gtk_label_set_line_wrap (GTK_LABEL (w), TRUE);
+  gtk_label_set_max_width_chars (GTK_LABEL (w), 100);
+
+  return w;
+}
+
+static GtkWidget *
+create_video (void)
+{
+  GtkMediaStream *stream = gtk_media_file_new_for_resource ("/images/gtk-logo.webm");
+  GtkWidget *w = gtk_image_new_from_paintable (GDK_PAINTABLE (stream));
+  gtk_media_stream_set_loop (stream, TRUE);
+  gtk_media_stream_play (stream);
+  g_object_unref (stream);
+
+  return w;
+}
+
+static GtkWidget *
+create_gears (void)
+{
+  GtkWidget *w = gtk_gears_new ();
+
+  gtk_widget_set_size_request (w, 100, 100);
+
+  return w;
+}
+
+static GtkWidget *
+create_switch (void)
+{
+  GtkWidget *w = gtk_switch_new ();
+
+  gtk_switch_set_state (GTK_SWITCH (w), TRUE);
+
+  return w;
+}
+
+static const struct {
+  const char *name;
+  GtkWidget * (*create_func) (void);
+} widget_types[] = {
+  { "Icon",       create_icon           },
+  { "Button",     create_button         },
+  { "Blurbutton", create_blurred_button },
+  { "Fontbutton", create_font_button    },
+  { "Levelbar",   create_level_bar      },
+  { "Label",      create_label          },
+  { "Spinner",    create_spinner        },
+  { "Spinbutton", create_spinbutton     },
+  { "Video",      create_video          },
+  { "Gears",      create_gears          },
+  { "Switch",     create_switch         },
 };
 
-static Stats *
-get_stats (GtkWidget *widget)
-{
-  static GQuark stats_quark = 0;
-  Stats *stats;
-
-  if (G_UNLIKELY (stats_quark == 0))
-    stats_quark = g_quark_from_static_string ("stats");
-
-  stats = g_object_get_qdata (G_OBJECT (widget), stats_quark);
-  if (stats == NULL)
-    {
-      stats = g_new0 (Stats, 1);
-      g_object_set_qdata_full (G_OBJECT (widget), stats_quark, stats, g_free);
-      stats->last_frame = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
-      stats->last_stats = stats->last_frame;
-    }
-
-  return stats;
-}
+static int selected_widget_type = -1;
+static const int N_WIDGET_TYPES = G_N_ELEMENTS (widget_types);
 
 static void
-do_stats (GtkWidget *widget,
-          GtkWidget *info_label,
-          gint      *suggested_change)
+set_widget_type (GtkFishbowl *fishbowl,
+                 int          widget_type_index)
 {
-  Stats *stats;
-  gint64 frame_time;
+  GtkWidget *window, *headerbar;
 
-  stats = get_stats (widget);
-  frame_time = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
+  if (widget_type_index == selected_widget_type)
+    return;
 
-  if (stats->last_stats + STATS_UPDATE_TIME < frame_time)
-    {
-      char *new_label;
-      guint i, n_frames;
+  selected_widget_type = widget_type_index;
 
-      n_frames = 0;
-      for (i = 0; i < N_STATS; i++)
-        {
-          n_frames += stats->frame_counter[i];
-        }
-      
-      new_label = g_strdup_printf ("icons - %.1f fps",
-                                   (double) G_USEC_PER_SEC * n_frames
-                                       / (N_STATS * STATS_UPDATE_TIME));
-      gtk_label_set_label (GTK_LABEL (info_label), new_label);
-      g_free (new_label);
+  gtk_fishbowl_set_creation_func (fishbowl,
+                                  widget_types[selected_widget_type].create_func);
 
-      if (stats->frame_counter[stats->stats_index] >= 19 * stats->frame_counter_max / 20)
-        {
-          if (stats->last_suggestion > 0)
-            stats->last_suggestion *= 2;
-          else
-            stats->last_suggestion = 1;
-        }
-      else
-        {
-          if (stats->last_suggestion < 0)
-            stats->last_suggestion--;
-          else
-            stats->last_suggestion = -1;
-          stats->last_suggestion = MAX (stats->last_suggestion, 1 - (int) stats->item_counter[stats->stats_index]);
-        }
+  window = gtk_widget_get_toplevel (GTK_WIDGET (fishbowl));
+  headerbar = gtk_window_get_titlebar (GTK_WINDOW (window));
+  gtk_header_bar_set_title (GTK_HEADER_BAR (headerbar),
+                            widget_types[selected_widget_type].name);
+}
 
-      stats->stats_index = (stats->stats_index + 1) % N_STATS;
-      stats->frame_counter[stats->stats_index] = 0;
-      stats->item_counter[stats->stats_index] = stats->item_counter[(stats->stats_index + N_STATS - 1) % N_STATS];
-      stats->last_stats = frame_time;
-      
-      if (suggested_change)
-        *suggested_change = stats->last_suggestion;
-      else
-        stats->last_suggestion = 0;
-    }
+void
+next_button_clicked_cb (GtkButton *source,
+                        gpointer   user_data)
+{
+  GtkFishbowl *fishbowl = user_data;
+  int new_index;
+
+  if (selected_widget_type + 1 >= N_WIDGET_TYPES)
+    new_index = 0;
   else
-    {
-      if (suggested_change)
-        *suggested_change = 0;
-    }
+    new_index = selected_widget_type + 1;
 
-  stats->last_frame = frame_time;
-  stats->frame_counter[stats->stats_index]++;
-  stats->frame_counter_max = MAX (stats->frame_counter_max, stats->frame_counter[stats->stats_index]);
+  set_widget_type (fishbowl, new_index);
 }
 
-static void
-stats_update (GtkWidget *widget)
+void
+prev_button_clicked_cb (GtkButton *source,
+                        gpointer   user_data)
 {
-  Stats *stats;
+  GtkFishbowl *fishbowl = user_data;
+  int new_index;
 
-  stats = get_stats (widget);
+  if (selected_widget_type - 1 < 0)
+    new_index = N_WIDGET_TYPES - 1;
+  else
+    new_index = selected_widget_type - 1;
 
-  stats->item_counter[stats->stats_index] = gtk_fishbowl_get_count (GTK_FISHBOWL (widget));
+  set_widget_type (fishbowl, new_index);
 }
 
-static gboolean
-move_fish (GtkWidget     *bowl,
-           GdkFrameClock *frame_clock,
-           gpointer       info_label)
-{
-  gint suggested_change = 0;
-  
-  do_stats (bowl,
-            info_label,
-            !gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (allow_changes)) ? &suggested_change : NULL);
-
-  gtk_fishbowl_set_count (GTK_FISHBOWL (bowl),
-                          gtk_fishbowl_get_count (GTK_FISHBOWL (bowl)) + suggested_change);
-  stats_update (bowl);
-
-  return G_SOURCE_CONTINUE;
-}
 
 GtkWidget *
 do_fishbowl (GtkWidget *do_widget)
 {
   static GtkWidget *window = NULL;
+  static GtkCssProvider *provider = NULL;
+
+  if (provider == NULL)
+    {
+      provider = gtk_css_provider_new ();
+      gtk_css_provider_load_from_data (provider, css, -1);
+      gtk_style_context_add_provider_for_display (gdk_display_get_default (),
+                                                  GTK_STYLE_PROVIDER (provider),
+                                                  GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
+    }
 
   if (!window)
     {
       GtkBuilder *builder;
-      GtkWidget *bowl, *info_label;
+      GtkWidget *bowl;
 
       g_type_ensure (GTK_TYPE_FISHBOWL);
 
       builder = gtk_builder_new_from_resource ("/fishbowl/fishbowl.ui");
+      gtk_builder_add_callback_symbols (builder,
+                                        "next_button_clicked_cb", G_CALLBACK (next_button_clicked_cb),
+                                        "prev_button_clicked_cb", G_CALLBACK (prev_button_clicked_cb),
+                                        NULL);
       gtk_builder_connect_signals (builder, NULL);
       window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
       bowl = GTK_WIDGET (gtk_builder_get_object (builder, "bowl"));
-      gtk_fishbowl_set_use_icons (GTK_FISHBOWL (bowl), TRUE);
-      info_label = GTK_WIDGET (gtk_builder_get_object (builder, "info_label"));
-      allow_changes = GTK_WIDGET (gtk_builder_get_object (builder, "changes_allow"));
+      set_widget_type (GTK_FISHBOWL (bowl), 0);
       gtk_window_set_display (GTK_WINDOW (window),
                               gtk_widget_get_display (do_widget));
       g_signal_connect (window, "destroy",
                         G_CALLBACK (gtk_widget_destroyed), &window);
 
       gtk_widget_realize (window);
-      gtk_widget_add_tick_callback (bowl, move_fish, info_label, NULL);
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/fishbowl.ui

@@ -7,7 +7,43 @@
       <object class="GtkHeaderBar" id="">
         <property name="show-title-buttons">1</property>
         <child>
-          <object class="GtkLabel" id="info_label">
+          <object class="GtkBox">
+            <style>
+              <class name="linked"/>
+            </style>
+            <child>
+              <object class="GtkButton">
+                <property name="icon-name">pan-start-symbolic</property>
+                <signal name="clicked" handler="prev_button_clicked_cb" object="bowl" swapped="no"/>
+              </object>
+            </child>
+            <child>
+              <object class="GtkButton">
+                <property name="icon-name">pan-end-symbolic</property>
+                <signal name="clicked" handler="next_button_clicked_cb" object="bowl" swapped="no"/>
+              </object>
+            </child>
+          </object>
+        </child>
+        <child>
+          <object class="GtkLabel">
+            <property name="label">fps</property>
+          </object>
+          <packing>
+            <property name="pack-type">end</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkLabel">
+            <property name="label" bind-source="bowl" bind-property="framerate"/>
+          </object>
+          <packing>
+            <property name="pack-type">end</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkLabel">
+            <property name="label">Icons, </property>
           </object>
           <packing>
             <property name="pack-type">end</property>
@@ -48,6 +84,7 @@
       <object class="GtkFishbowl" id="bowl">
         <property name="visible">True</property>
         <property name="animating">True</property>
+        <property name="benchmark" bind-source="changes_allow" bind-property="active" bind-flags="invert-boolean">True</property>
       </object>
     </child>
   </object>

demos/gtk-demo/font-features.ui

@@ -42,6 +42,7 @@
                         <property name="can-focus">1</property>
                         <property name="receives-default">1</property>
                         <property name="font">Sans 12</property>
+                        <property name="level">family|style|size|variations|features</property>
                         <signal name="font-set" handler="font_changed" swapped="no"/>
                       </object>
                     </child>
@@ -132,7 +133,6 @@
 Разъяренный чтец эгоистично бьёт пятью жердями шустрого фехтовальщика. Наш банк вчера же выплатил Ф.Я. Эйхгольду комиссию за ценные вещи. Эх, чужак, общий съём цен шляп (юфть) – вдрызг! В чащах юга жил бы цитрус? Да, но фальшивый экземпляр!
 
 Τάχιστη αλώπηξ βαφής ψημένη γη, δρασκελίζει υπέρ νωθρού κυνός</property>
-                    <signal name="key-press-event" handler="entry_key_press"/>
                     <signal name="activate" handler="stop_edit"/>
                     <property name="valign">start</property>
                     <property name="width-chars">50</property>

demos/gtk-demo/font_features.c

@@ -1669,12 +1669,12 @@ stop_edit (void)
 }
 
 static gboolean
-entry_key_press (GtkEntry *entry, GdkEventKey *event)
+entry_key_press (GtkEventController *controller,
+                 guint               keyval,
+                 guint               keycode,
+                 GdkModifierType     modifiers,
+                 GtkEntry           *entry)
 {
-  guint keyval;
-
-  gdk_event_get_keyval ((GdkEvent *)event, &keyval);
-
   if (keyval == GDK_KEY_Escape)
     {
       gtk_entry_set_text (GTK_ENTRY (entry), text);
@@ -1694,6 +1694,7 @@ do_font_features (GtkWidget *do_widget)
     {
       GtkBuilder *builder;
       GtkWidget *feature_list;
+      GtkEventController *controller;
 
       builder = gtk_builder_new_from_resource ("/font_features/font-features.ui");
 
@@ -1703,7 +1704,6 @@ do_font_features (GtkWidget *do_widget)
       gtk_builder_add_callback_symbol (builder, "reset", reset_features);
       gtk_builder_add_callback_symbol (builder, "stop_edit", G_CALLBACK (stop_edit));
       gtk_builder_add_callback_symbol (builder, "toggle_edit", G_CALLBACK (toggle_edit));
-      gtk_builder_add_callback_symbol (builder, "entry_key_press", G_CALLBACK (entry_key_press));
       gtk_builder_connect_signals (builder, NULL);
 
       window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
@@ -1718,6 +1718,11 @@ do_font_features (GtkWidget *do_widget)
       entry = GTK_WIDGET (gtk_builder_get_object (builder, "entry"));
       edit_toggle = GTK_WIDGET (gtk_builder_get_object (builder, "edit_toggle"));
 
+      controller = gtk_event_controller_key_new ();
+      g_object_set_data_full (G_OBJECT (entry), "controller", controller, g_object_unref);
+      g_signal_connect (controller, "key-pressed", G_CALLBACK (entry_key_press), entry);
+      gtk_widget_add_controller (entry, controller);
+
       add_check_group (feature_list, _("Kerning"), (const char *[]){ "kern", NULL });
       add_check_group (feature_list, _("Ligatures"), (const char *[]){ "liga",
                                                                        "dlig",

demos/gtk-demo/fontplane.c

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

demos/gtk-demo/fontplane.h

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

demos/gtk-demo/gestures.c

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

demos/gtk-demo/gtkfishbowl.c

@@ -24,13 +24,18 @@ typedef struct _GtkFishbowlChild         GtkFishbowlChild;
 
 struct _GtkFishbowlPrivate
 {
+  GtkFishCreationFunc creation_func;
   GList *children;
   guint count;
 
   gint64 last_frame_time;
+  gint64 update_delay;
   guint tick_id;
 
-  guint use_icons: 1;
+  double framerate;
+  int last_benchmark_change;
+
+  guint benchmark : 1;
 };
 
 struct _GtkFishbowlChild
@@ -45,18 +50,25 @@ struct _GtkFishbowlChild
 enum {
    PROP_0,
    PROP_ANIMATING,
+   PROP_BENCHMARK,
    PROP_COUNT,
+   PROP_FRAMERATE,
+   PROP_UPDATE_DELAY,
    NUM_PROPERTIES
 };
 
 static GParamSpec *props[NUM_PROPERTIES] = { NULL, };
 
-G_DEFINE_TYPE_WITH_PRIVATE (GtkFishbowl, gtk_fishbowl, GTK_TYPE_CONTAINER)
+G_DEFINE_TYPE_WITH_PRIVATE (GtkFishbowl, gtk_fishbowl, GTK_TYPE_WIDGET)
 
 static void
 gtk_fishbowl_init (GtkFishbowl *fishbowl)
 {
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
   gtk_widget_set_has_surface (GTK_WIDGET (fishbowl), FALSE);
+
+  priv->update_delay = G_USEC_PER_SEC;
 }
 
 /**
@@ -72,15 +84,6 @@ gtk_fishbowl_new (void)
   return g_object_new (GTK_TYPE_FISHBOWL, NULL);
 }
 
-void
-gtk_fishbowl_set_use_icons (GtkFishbowl *fishbowl,
-                            gboolean     use_icons)
-{
-  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
-
-  priv->use_icons = use_icons;
-}
-
 static void
 gtk_fishbowl_measure (GtkWidget      *widget,
                       GtkOrientation  orientation,
@@ -127,8 +130,7 @@ gtk_fishbowl_measure (GtkWidget      *widget,
 static void
 gtk_fishbowl_size_allocate (GtkWidget           *widget,
                             const GtkAllocation *allocation,
-                            int                  baseline,
-                            GtkAllocation       *out_clip)
+                            int                  baseline)
 {
   GtkFishbowl *fishbowl = GTK_FISHBOWL (widget);
   GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
@@ -139,8 +141,6 @@ gtk_fishbowl_size_allocate (GtkWidget           *widget,
 
   for (children = priv->children; children; children = children->next)
     {
-      GtkAllocation child_clip;
-
       child = children->data;
 
       if (!gtk_widget_get_visible (child->widget))
@@ -152,7 +152,7 @@ gtk_fishbowl_size_allocate (GtkWidget           *widget,
       child_allocation.width = child_requisition.width;
       child_allocation.height = child_requisition.height;
 
-      gtk_widget_size_allocate (child->widget, &child_allocation, -1, &child_clip);
+      gtk_widget_size_allocate (child->widget, &child_allocation, -1);
     }
 }
 
@@ -164,10 +164,9 @@ new_speed (void)
 }
 
 static void
-gtk_fishbowl_add (GtkContainer *container,
-                  GtkWidget    *widget)
+gtk_fishbowl_add (GtkFishbowl *fishbowl,
+                  GtkWidget   *widget)
 {
-  GtkFishbowl *fishbowl = GTK_FISHBOWL (container);
   GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
   GtkFishbowlChild *child_info;
 
@@ -189,13 +188,12 @@ gtk_fishbowl_add (GtkContainer *container,
 }
 
 static void
-gtk_fishbowl_remove (GtkContainer *container,
-                     GtkWidget    *widget)
+gtk_fishbowl_remove (GtkFishbowl *fishbowl,
+                     GtkWidget   *widget)
 {
-  GtkFishbowl *fishbowl = GTK_FISHBOWL (container);
   GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
   GtkFishbowlChild *child;
-  GtkWidget *widget_container = GTK_WIDGET (container);
+  GtkWidget *widget_bowl = GTK_WIDGET (fishbowl);
   GList *children;
 
   for (children = priv->children; children; children = children->next)
@@ -212,8 +210,8 @@ gtk_fishbowl_remove (GtkContainer *container,
           g_list_free (children);
           g_free (child);
 
-          if (was_visible && gtk_widget_get_visible (widget_container))
-            gtk_widget_queue_resize (widget_container);
+          if (was_visible && gtk_widget_get_visible (widget_bowl))
+            gtk_widget_queue_resize (widget_bowl);
 
           priv->count--;
           g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_COUNT]);
@@ -222,26 +220,6 @@ gtk_fishbowl_remove (GtkContainer *container,
     }
 }
 
-static void
-gtk_fishbowl_forall (GtkContainer *container,
-                     GtkCallback   callback,
-                     gpointer      callback_data)
-{
-  GtkFishbowl *fishbowl = GTK_FISHBOWL (container);
-  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
-  GtkFishbowlChild *child;
-  GList *children;
-
-  children = priv->children;
-  while (children)
-    {
-      child = children->data;
-      children = children->next;
-
-      (* callback) (child->widget, callback_data);
-    }
-}
-
 static void
 gtk_fishbowl_dispose (GObject *object)
 {
@@ -267,10 +245,18 @@ gtk_fishbowl_set_property (GObject         *object,
       gtk_fishbowl_set_animating (fishbowl, g_value_get_boolean (value));
       break;
 
+    case PROP_BENCHMARK:
+      gtk_fishbowl_set_benchmark (fishbowl, g_value_get_boolean (value));
+      break;
+
     case PROP_COUNT:
       gtk_fishbowl_set_count (fishbowl, g_value_get_uint (value));
       break;
 
+    case PROP_UPDATE_DELAY:
+      gtk_fishbowl_set_update_delay (fishbowl, g_value_get_int64 (value));
+      break;
+
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
@@ -291,10 +277,22 @@ gtk_fishbowl_get_property (GObject         *object,
       g_value_set_boolean (value, gtk_fishbowl_get_animating (fishbowl));
       break;
 
+    case PROP_BENCHMARK:
+      g_value_set_boolean (value, gtk_fishbowl_get_benchmark (fishbowl));
+      break;
+
     case PROP_COUNT:
       g_value_set_uint (value, gtk_fishbowl_get_count (fishbowl));
       break;
 
+    case PROP_FRAMERATE:
+      g_value_set_double (value, gtk_fishbowl_get_framerate (fishbowl));
+      break;
+
+    case PROP_UPDATE_DELAY:
+      g_value_set_int64 (value, gtk_fishbowl_get_update_delay (fishbowl));
+      break;
+
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
@@ -306,7 +304,6 @@ gtk_fishbowl_class_init (GtkFishbowlClass *klass)
 {
   GObjectClass *object_class = G_OBJECT_CLASS (klass);
   GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
-  GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
 
   object_class->dispose = gtk_fishbowl_dispose;
   object_class->set_property = gtk_fishbowl_set_property;
@@ -315,10 +312,6 @@ gtk_fishbowl_class_init (GtkFishbowlClass *klass)
   widget_class->measure = gtk_fishbowl_measure;
   widget_class->size_allocate = gtk_fishbowl_size_allocate;
 
-  container_class->add = gtk_fishbowl_add;
-  container_class->remove = gtk_fishbowl_remove;
-  container_class->forall = gtk_fishbowl_forall;
-
   props[PROP_ANIMATING] =
       g_param_spec_boolean ("animating",
                             "animating",
@@ -326,13 +319,36 @@ gtk_fishbowl_class_init (GtkFishbowlClass *klass)
                             FALSE,
                             G_PARAM_READWRITE);
 
+  props[PROP_BENCHMARK] =
+      g_param_spec_boolean ("benchmark",
+                            "Benchmark",
+                            "Adapt the count property to hit the maximum framerate",
+                            FALSE,
+                            G_PARAM_READWRITE);
+
   props[PROP_COUNT] =
       g_param_spec_uint ("count",
                          "Count",
                          "Number of widgets",
                          0, G_MAXUINT,
                          0,
-                         G_PARAM_READABLE);
+                         G_PARAM_READWRITE);
+
+  props[PROP_FRAMERATE] =
+      g_param_spec_double ("framerate",
+                           "Framerate",
+                           "Framerate of this widget in frames per second",
+                           0, G_MAXDOUBLE,
+                           0,
+                           G_PARAM_READABLE);
+
+  props[PROP_UPDATE_DELAY] =
+      g_param_spec_int64 ("update-delay",
+                          "Update delay",
+                          "Number of usecs between updates",
+                          0, G_MAXINT64,
+                          G_USEC_PER_SEC,
+                          G_PARAM_READWRITE);
 
   g_object_class_install_properties (object_class, NUM_PROPERTIES, props);
 }
@@ -345,96 +361,58 @@ gtk_fishbowl_get_count (GtkFishbowl *fishbowl)
   return priv->count;
 }
 
-char **icon_names = NULL;
-gsize n_icon_names = 0;
-
-static void
-init_icon_names (GtkIconTheme *theme)
-{
-  GPtrArray *icons;
-  GList *l, *icon_list;
-
-  if (icon_names)
-    return;
-
-  icon_list = gtk_icon_theme_list_icons (theme, NULL);
-  icons = g_ptr_array_new ();
-
-  for (l = icon_list; l; l = l->next)
-    {
-      if (g_str_has_suffix (l->data, "symbolic"))
-        continue;
-
-      g_ptr_array_add (icons, g_strdup (l->data));
-    }
-
-  n_icon_names = icons->len;
-  g_ptr_array_add (icons, NULL); /* NULL-terminate the array */
-  icon_names = (char **) g_ptr_array_free (icons, FALSE);
-
-  /* don't free strings, we assigned them to the array */
-  g_list_free_full (icon_list, g_free);
-}
-
-static const char *
-get_random_icon_name (GtkIconTheme *theme)
-{
-  init_icon_names (theme);
-
-  return icon_names[g_random_int_range(0, n_icon_names)];
-}
-
-static GType
-get_random_widget_type ()
-{
-  GType types[] = {
-    GTK_TYPE_SWITCH,
-    GTK_TYPE_BUTTON,
-    GTK_TYPE_ENTRY,
-    GTK_TYPE_SPIN_BUTTON,
-    GTK_TYPE_FONT_BUTTON,
-    GTK_TYPE_SCROLLBAR,
-    GTK_TYPE_SCALE,
-    GTK_TYPE_LEVEL_BAR,
-    GTK_TYPE_PROGRESS_BAR,
-    GTK_TYPE_RADIO_BUTTON,
-    GTK_TYPE_CHECK_BUTTON
-  };
-  return types[g_random_int_range (0, G_N_ELEMENTS (types))];
-}
-
 void
 gtk_fishbowl_set_count (GtkFishbowl *fishbowl,
                         guint        count)
 {
   GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
 
+  if (priv->count == count)
+    return;
+
   g_object_freeze_notify (G_OBJECT (fishbowl));
 
   while (priv->count > count)
     {
-      gtk_container_remove (GTK_CONTAINER (fishbowl),
-                            ((GtkFishbowlChild *) priv->children->data)->widget);
+      gtk_fishbowl_remove (fishbowl, gtk_widget_get_first_child (GTK_WIDGET (fishbowl)));
     }
 
   while (priv->count < count)
     {
       GtkWidget *new_widget;
 
-      if (priv->use_icons)
-        {
-          new_widget = gtk_image_new_from_icon_name (get_random_icon_name (gtk_icon_theme_get_default ()));
-          gtk_image_set_icon_size (GTK_IMAGE (new_widget), GTK_ICON_SIZE_LARGE);
-        }
-      else
-        new_widget = g_object_new (get_random_widget_type (), NULL);
+      new_widget = priv->creation_func ();
 
-      gtk_container_add (GTK_CONTAINER (fishbowl), new_widget);
+      gtk_fishbowl_add (fishbowl, new_widget);
     }
 
   g_object_thaw_notify (G_OBJECT (fishbowl));
 }
 
+gboolean
+gtk_fishbowl_get_benchmark (GtkFishbowl *fishbowl)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  return priv->benchmark;
+}
+
+void
+gtk_fishbowl_set_benchmark (GtkFishbowl *fishbowl,
+                            gboolean     benchmark)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  if (priv->benchmark == benchmark)
+    return;
+
+  priv->benchmark = benchmark;
+  if (!benchmark)
+    priv->last_benchmark_change = 0;
+
+  g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_BENCHMARK]);
+}
+
 gboolean
 gtk_fishbowl_get_animating (GtkFishbowl *fishbowl)
 {
@@ -443,6 +421,111 @@ gtk_fishbowl_get_animating (GtkFishbowl *fishbowl)
   return priv->tick_id != 0;
 }
 
+static gint64
+guess_refresh_interval (GdkFrameClock *frame_clock)
+{
+  gint64 interval;
+  gint64 i;
+
+  interval = G_MAXINT64;
+
+  for (i = gdk_frame_clock_get_history_start (frame_clock);
+       i < gdk_frame_clock_get_frame_counter (frame_clock);
+       i++)
+    {
+      GdkFrameTimings *t, *before;
+      gint64 ts, before_ts;
+
+      t = gdk_frame_clock_get_timings (frame_clock, i);
+      before = gdk_frame_clock_get_timings (frame_clock, i - 1);
+      if (t == NULL || before == NULL)
+        continue;
+
+      ts = gdk_frame_timings_get_frame_time (t);
+      before_ts = gdk_frame_timings_get_frame_time (before);
+      if (ts == 0 || before_ts == 0)
+        continue;
+
+      interval = MIN (interval, ts - before_ts);
+    }
+
+  if (interval == G_MAXINT64)
+    return 0;
+
+  return interval;
+}
+
+static void
+gtk_fishbowl_do_update (GtkFishbowl *fishbowl)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+  GdkFrameClock *frame_clock;
+  GdkFrameTimings *start, *end;
+  gint64 start_counter, end_counter;
+  gint64 n_frames, expected_frames;
+  gint64 start_timestamp, end_timestamp;
+  gint64 interval;
+
+  frame_clock = gtk_widget_get_frame_clock (GTK_WIDGET (fishbowl));
+  if (frame_clock == NULL)
+    return;
+
+  start_counter = gdk_frame_clock_get_history_start (frame_clock);
+  end_counter = gdk_frame_clock_get_frame_counter (frame_clock);
+  start = gdk_frame_clock_get_timings (frame_clock, start_counter);
+  for (end = gdk_frame_clock_get_timings (frame_clock, end_counter);
+       end_counter > start_counter && end != NULL && !gdk_frame_timings_get_complete (end);
+       end = gdk_frame_clock_get_timings (frame_clock, end_counter))
+    end_counter--;
+  if (end_counter - start_counter < 4)
+    return;
+
+  start_timestamp = gdk_frame_timings_get_presentation_time (start);
+  end_timestamp = gdk_frame_timings_get_presentation_time (end);
+  if (start_timestamp == 0 || end_timestamp == 0)
+    {
+      start_timestamp = gdk_frame_timings_get_frame_time (start);
+      end_timestamp = gdk_frame_timings_get_frame_time (end);
+    }
+
+  n_frames = end_counter - start_counter;
+  priv->framerate = ((double) n_frames) * G_USEC_PER_SEC / (end_timestamp - start_timestamp);
+  g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_FRAMERATE]);
+
+  if (!priv->benchmark)
+    return;
+
+  interval = gdk_frame_timings_get_refresh_interval (end);
+  if (interval == 0)
+    {
+      interval = guess_refresh_interval (frame_clock);
+      if (interval == 0)
+        return;
+    }
+  expected_frames = round ((double) (end_timestamp - start_timestamp) / interval);
+
+  if (n_frames >= expected_frames)
+    {
+      if (priv->last_benchmark_change > 0)
+        priv->last_benchmark_change *= 2;
+      else
+        priv->last_benchmark_change = 1;
+    }
+  else if (n_frames + 1 < expected_frames)
+    {
+      if (priv->last_benchmark_change < 0)
+        priv->last_benchmark_change--;
+      else
+        priv->last_benchmark_change = -1;
+    }
+  else
+    {
+      priv->last_benchmark_change = 0;
+    }
+
+  gtk_fishbowl_set_count (fishbowl, MAX (1, (int) priv->count + priv->last_benchmark_change));
+}
+
 static gboolean
 gtk_fishbowl_tick (GtkWidget     *widget,
                    GdkFrameClock *frame_clock,
@@ -453,9 +536,11 @@ gtk_fishbowl_tick (GtkWidget     *widget,
   GtkFishbowlChild *child;
   GList *l;
   gint64 frame_time, elapsed;
+  gboolean do_update;
 
   frame_time = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
   elapsed = frame_time - priv->last_frame_time;
+  do_update = frame_time / priv->update_delay != priv->last_frame_time / priv->update_delay;
   priv->last_frame_time = frame_time;
 
   /* last frame was 0, so we're just starting to animate */
@@ -494,6 +579,9 @@ gtk_fishbowl_tick (GtkWidget     *widget,
 
   gtk_widget_queue_allocate (widget);
 
+  if (do_update)
+    gtk_fishbowl_do_update (fishbowl);
+
   return G_SOURCE_CONTINUE;
 }
 
@@ -518,8 +606,57 @@ gtk_fishbowl_set_animating (GtkFishbowl *fishbowl,
       priv->last_frame_time = 0;
       gtk_widget_remove_tick_callback (GTK_WIDGET (fishbowl), priv->tick_id);
       priv->tick_id = 0;
+      priv->framerate = 0;
+      g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_FRAMERATE]);
     }
 
   g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_ANIMATING]);
 }
 
+double
+gtk_fishbowl_get_framerate (GtkFishbowl *fishbowl)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  return priv->framerate;
+}
+
+gint64
+gtk_fishbowl_get_update_delay (GtkFishbowl *fishbowl)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  return priv->update_delay;
+}
+
+void
+gtk_fishbowl_set_update_delay (GtkFishbowl *fishbowl,
+                               gint64       update_delay)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  if (priv->update_delay == update_delay)
+    return;
+
+  priv->update_delay = update_delay;
+
+  g_object_notify_by_pspec (G_OBJECT (fishbowl), props[PROP_UPDATE_DELAY]);
+}
+
+void
+gtk_fishbowl_set_creation_func (GtkFishbowl         *fishbowl,
+                                GtkFishCreationFunc  creation_func)
+{
+  GtkFishbowlPrivate *priv = gtk_fishbowl_get_instance_private (fishbowl);
+
+  g_object_freeze_notify (G_OBJECT (fishbowl));
+
+  gtk_fishbowl_set_count (fishbowl, 0);
+  priv->last_benchmark_change = 0;
+
+  priv->creation_func = creation_func;
+
+  gtk_fishbowl_set_count (fishbowl, 1);
+
+  g_object_thaw_notify (G_OBJECT (fishbowl));
+}

demos/gtk-demo/gtkfishbowl.h

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

demos/gtk-demo/hypertext.c

@@ -105,14 +105,14 @@ follow_if_link (GtkWidget   *text_view,
 /* Links can be activated by pressing Enter.
  */
 static gboolean
-key_press_event (GtkWidget *text_view,
-                 GdkEventKey *event)
+key_pressed (GtkEventController *controller,
+             guint               keyval,
+             guint               keycode,
+             GdkModifierType     modifiers,
+             GtkWidget          *text_view)
 {
   GtkTextIter iter;
   GtkTextBuffer *buffer;
-  guint keyval;
-
-  gdk_event_get_keyval ((GdkEvent *)event, &keyval);
 
   switch (keyval)
     {
@@ -128,7 +128,7 @@ key_press_event (GtkWidget *text_view,
         break;
     }
 
-  return FALSE;
+  return GDK_EVENT_PROPAGATE;
 }
 
 static void set_cursor_if_appropriate (GtkTextView *text_view,
@@ -241,6 +241,7 @@ do_hypertext (GtkWidget *do_widget)
       GtkWidget *view;
       GtkWidget *sw;
       GtkTextBuffer *buffer;
+      GtkEventController *controller;
 
       window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
       gtk_window_set_title (GTK_WINDOW (window), "Hypertext");
@@ -255,8 +256,9 @@ do_hypertext (GtkWidget *do_widget)
       gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (view), GTK_WRAP_WORD);
       gtk_text_view_set_left_margin (GTK_TEXT_VIEW (view), 20);
       gtk_text_view_set_right_margin (GTK_TEXT_VIEW (view), 20);
-      g_signal_connect (view, "key-press-event",
-                        G_CALLBACK (key_press_event), NULL);
+      controller = gtk_event_controller_key_new ();
+      g_signal_connect (controller, "key-pressed", G_CALLBACK (key_pressed), view);
+      gtk_widget_add_controller (view, controller);
       g_signal_connect (view, "event",
                         G_CALLBACK (event_cb), NULL);
 

demos/gtk-demo/images.c

@@ -325,6 +325,7 @@ do_images (GtkWidget *do_widget)
   GtkWidget *image;
   GtkWidget *label;
   GtkWidget *button;
+  GdkPaintable *paintable;
   GIcon *gicon;
 
   if (!window)
@@ -445,6 +446,22 @@ do_images (GtkWidget *do_widget)
       gtk_media_stream_set_loop (gtk_video_get_media_stream (GTK_VIDEO (video)), TRUE);
       gtk_container_add (GTK_CONTAINER (frame), video);
 
+      /* Widget paintables */
+      vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
+      gtk_container_add (GTK_CONTAINER (hbox), vbox);
+
+      label = gtk_label_new (NULL);
+      gtk_label_set_markup (GTK_LABEL (label),
+                            "<u>GtkWidgetPaintable</u>");
+      gtk_box_pack_start (GTK_BOX (vbox), label);
+
+      paintable = gtk_widget_paintable_new (do_widget);
+      image = gtk_image_new_from_paintable (paintable);
+      gtk_image_set_can_shrink (GTK_IMAGE (image), TRUE);
+      gtk_widget_set_size_request (image, 100, 100);
+      gtk_widget_set_valign (image, GTK_ALIGN_START);
+      gtk_container_add (GTK_CONTAINER (vbox), image);
+
       /* Sensitivity control */
       button = gtk_toggle_button_new_with_mnemonic ("_Insensitive");
       gtk_box_pack_start (GTK_BOX (base_vbox), button);

demos/gtk-demo/language-names.c

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

demos/gtk-demo/main.c

@@ -532,7 +532,106 @@ fontify (GtkTextBuffer *source_buffer)
     }
 }
 
-static GtkWidget *create_text (GtkWidget **text_view, gboolean is_source);
+static GtkWidget *
+display_image (const char *resource)
+{
+  GtkWidget *sw, *image;
+
+  image = gtk_image_new_from_resource (resource);
+  gtk_widget_set_halign (image, GTK_ALIGN_CENTER);
+  gtk_widget_set_valign (image, GTK_ALIGN_CENTER);
+  sw = gtk_scrolled_window_new (NULL, NULL);
+  gtk_container_add (GTK_CONTAINER (sw), image);
+
+  return sw;
+}
+
+static GtkWidget *
+display_text (const char *resource)
+{
+  GtkTextBuffer *buffer;
+  GtkWidget *textview, *sw;
+  GBytes *bytes;
+
+  bytes = g_resources_lookup_data (resource, 0, NULL);
+  g_assert (bytes);
+
+  g_assert (g_utf8_validate (g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes), NULL));
+
+  textview = gtk_text_view_new ();
+  g_object_set (textview,
+                "left-margin", 20,
+                "right-margin", 20,
+                "top-margin", 20,
+                "bottom-margin", 20,
+                NULL);
+  gtk_text_view_set_editable (GTK_TEXT_VIEW (textview), FALSE);
+  gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (textview), FALSE);
+  /* Make it a bit nicer for text. */
+  gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (textview), GTK_WRAP_WORD);
+  gtk_text_view_set_pixels_above_lines (GTK_TEXT_VIEW (textview), 2);
+  gtk_text_view_set_pixels_below_lines (GTK_TEXT_VIEW (textview), 2);
+
+  buffer = gtk_text_buffer_new (NULL);
+  gtk_text_buffer_set_text (buffer, g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes));
+  if (g_str_has_suffix (resource, ".c"))
+    fontify (buffer);
+  gtk_text_view_set_buffer (GTK_TEXT_VIEW (textview), buffer);
+
+  g_bytes_unref (bytes);
+
+  sw = gtk_scrolled_window_new (NULL, NULL);
+  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
+                                  GTK_POLICY_AUTOMATIC,
+                                  GTK_POLICY_AUTOMATIC);
+  gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw),
+                                       GTK_SHADOW_NONE);
+  gtk_container_add (GTK_CONTAINER (sw), textview);
+
+  return sw;
+}
+
+static GtkWidget *
+display_video (const char *resource)
+{
+  GtkWidget *video;
+
+  video = gtk_video_new_for_resource (resource);
+  gtk_video_set_loop (GTK_VIDEO (video), TRUE);
+
+  return video;
+}
+
+static GtkWidget *
+display_nothing (const char *resource)
+{
+  GtkWidget *widget;
+  char *str;
+
+  str = g_strdup_printf ("The lazy GTK developers forgot to add a way to display the resource '%s'", resource);
+  widget = gtk_label_new (str);
+  gtk_label_set_line_wrap (GTK_LABEL (widget), TRUE);
+
+  g_free (str);
+
+  return widget;
+}
+
+static struct {
+  const char *extension;
+  GtkWidget * (* display_func) (const char *resource);
+} display_funcs[] = {
+  { ".gif", display_image },
+  { ".jpg", display_image },
+  { ".png", display_image },
+  { ".c", display_text },
+  { ".css", display_text },
+  { ".glsl", display_text },
+  { ".h", display_text },
+  { ".txt", display_text },
+  { ".ui", display_text },
+  { ".webm", display_video }
+};
 
 static void
 add_data_tab (const gchar *demoname)
@@ -540,7 +639,7 @@ add_data_tab (const gchar *demoname)
   gchar *resource_dir, *resource_name;
   gchar **resources;
   GtkWidget *widget, *label;
-  guint i;
+  guint i, j;
 
   resource_dir = g_strconcat ("/", demoname, NULL);
   resources = g_resources_enumerate_children (resource_dir, 0, NULL);
@@ -554,58 +653,22 @@ add_data_tab (const gchar *demoname)
     {
       resource_name = g_strconcat (resource_dir, "/", resources[i], NULL);
 
-      widget = gtk_image_new_from_resource (resource_name);
-      if (gtk_image_get_paintable (GTK_IMAGE (widget)) == NULL)
+      for (j = 0; j < G_N_ELEMENTS(display_funcs); j++)
         {
-          GBytes *bytes;
-
-          /* So we've used the best API available to figure out it's
-           * not an image. Let's try something else then.
-           */
-          g_object_ref_sink (widget);
-          g_object_unref (widget);
-
-          bytes = g_resources_lookup_data (resource_name, 0, NULL);
-          g_assert (bytes);
-
-          if (g_utf8_validate (g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes), NULL))
-            {
-              /* Looks like it parses as text. Dump it into a textview then! */
-              GtkTextBuffer *buffer;
-              GtkWidget *textview;
-
-              widget = create_text (&textview, FALSE);
-              buffer = gtk_text_buffer_new (NULL);
-              gtk_text_buffer_set_text (buffer, g_bytes_get_data (bytes, NULL), g_bytes_get_size (bytes));
-              if (g_str_has_suffix (resource_name, ".c"))
-                fontify (buffer);
-              gtk_text_view_set_buffer (GTK_TEXT_VIEW (textview), buffer);
-            }
-          else
-            {
-              g_warning ("Don't know how to display resource '%s'", resource_name);
-              widget = NULL;
-            }
-
-          g_bytes_unref (bytes);
+          if (g_str_has_suffix (resource_name, display_funcs[j].extension))
+            break;
         }
 
-      if (GTK_IS_IMAGE (widget))
-        {
-          GtkWidget *sw;
-
-          gtk_widget_set_halign (widget, GTK_ALIGN_CENTER);
-          gtk_widget_set_valign (widget, GTK_ALIGN_CENTER);
-          sw = gtk_scrolled_window_new (NULL, NULL);
-          gtk_container_add (GTK_CONTAINER (sw), widget);
-          widget = sw;
-        }
+      if (j < G_N_ELEMENTS(display_funcs))
+        widget = display_funcs[j].display_func (resource_name);
+      else
+        widget = display_nothing (resource_name);
 
       label = gtk_label_new (resources[i]);
       gtk_widget_show (label);
       gtk_notebook_append_page (GTK_NOTEBOOK (notebook), widget, label);
       gtk_container_child_set (GTK_CONTAINER (notebook),
-                               GTK_WIDGET (widget),
+                               widget,
                                "tab-expand", TRUE,
                                NULL);
 
@@ -825,49 +888,6 @@ selection_cb (GtkTreeSelection *selection,
   g_free (filename);
 }
 
-static GtkWidget *
-create_text (GtkWidget **view,
-             gboolean    is_source)
-{
-  GtkWidget *scrolled_window;
-  GtkWidget *text_view;
-
-  scrolled_window = gtk_scrolled_window_new (NULL, NULL);
-  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
-                                  GTK_POLICY_AUTOMATIC,
-                                  GTK_POLICY_AUTOMATIC);
-  gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window),
-                                       GTK_SHADOW_NONE);
-
-  *view = text_view = gtk_text_view_new ();
-  g_object_set (text_view,
-                "left-margin", 20,
-                "right-margin", 20,
-                "top-margin", 20,
-                "bottom-margin", 20,
-                NULL);
-
-  gtk_text_view_set_editable (GTK_TEXT_VIEW (text_view), FALSE);
-  gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (text_view), FALSE);
-
-  gtk_container_add (GTK_CONTAINER (scrolled_window), text_view);
-
-  if (is_source)
-    {
-      gtk_text_view_set_monospace (GTK_TEXT_VIEW (text_view), TRUE);
-      gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text_view), GTK_WRAP_NONE);
-    }
-  else
-    {
-      /* Make it a bit nicer for text. */
-      gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text_view), GTK_WRAP_WORD);
-      gtk_text_view_set_pixels_above_lines (GTK_TEXT_VIEW (text_view), 2);
-      gtk_text_view_set_pixels_below_lines (GTK_TEXT_VIEW (text_view), 2);
-    }
-
-  return scrolled_window;
-}
-
 static void
 populate_model (GtkTreeModel *model)
 {

demos/gtk-demo/meson.build

@@ -26,7 +26,6 @@ demos = files([
   'expander.c',
   'filtermodel.c',
   'fishbowl.c',
-  'widgetbowl.c',
   'foreigndrawing.c',
   'gestures.c',
   'glarea.c',
@@ -45,6 +44,7 @@ demos = files([
   'modelbutton.c',
   'overlay.c',
   'overlay2.c',
+  'paint.c',
   'paintable.c',
   'paintable_animated.c',
   'paintable_mediastream.c',
@@ -76,8 +76,11 @@ demos = files([
 
 gtkdemo_deps = [ libgtk_dep, ]
 
+extra_demo_sources = files(['main.c', 'gtkfishbowl.c', 'fontplane.c', 'gtkgears.c'])
+
 if harfbuzz_dep.found() and pangoft_dep.found()
   demos += files('font_features.c')
+  extra_demo_sources += files(['script-names.c', 'language-names.c'])
   gtkdemo_deps += [ harfbuzz_dep, ]
 endif
 
@@ -97,13 +100,12 @@ gtkdemo_resources = gnome.compile_resources('gtkdemo_resources',
                                             source_dir: '.')
 
 executable('gtk4-demo',
-           'main.c', 'gtkfishbowl.c', 'fontplane.c', 'script-names.c', 'language-names.c',
-                   'gtkgears.c',
-                   demos, demos_h, gtkdemo_resources,
+                   demos, demos_h, extra_demo_sources, gtkdemo_resources,
            c_args: gtkdemo_args,
            dependencies: gtkdemo_deps,
            include_directories: confinc,
            gui_app: true,
+           link_args: extra_demo_ldflags,
            install: true)
 
 executable('gtk4-demo-application',
@@ -112,6 +114,7 @@ executable('gtk4-demo-application',
            dependencies: gtkdemo_deps,
            include_directories: confinc,
            gui_app: true,
+           link_args: extra_demo_ldflags,
            install: true)
 
 # icons
@@ -133,4 +136,4 @@ install_data('org.gtk.Demo.gschema.xml', install_dir: gtk_schemasdir)
 gnome.compile_schemas()
 
 # appdata
-install_data('org.gtk.Demo.appdata.xml', install_dir: gtk_appdatadir)
+install_data('org.gtk.Demo.appdata.xml', install_dir: gtk_appdatadir)

demos/gtk-demo/modelbutton.ui

@@ -56,6 +56,7 @@
         <child>
           <object class="GtkModelButton">
             <property name="action-name">win.color</property>
+            <property name="action-target">'red'</property>
             <property name="text">Red</property>
             <property name="inverted">1</property>
           </object>
@@ -63,6 +64,7 @@
         <child>
           <object class="GtkModelButton">
             <property name="action-name">win.color</property>
+            <property name="action-target">'green'</property>
             <property name="text">Green</property>
             <property name="inverted">1</property>
           </object>
@@ -70,6 +72,7 @@
         <child>
           <object class="GtkModelButton">
             <property name="action-name">win.color</property>
+            <property name="action-target">'blue'</property>
             <property name="text">Blue</property>
             <property name="inverted">1</property>
           </object>

demos/gtk-demo/paint.c

@@ -0,0 +1,283 @@
+/* Paint
+ *
+ * Demonstrates practical handling of drawing tablets in a real world
+ * usecase.
+ */
+#include <gtk/gtk.h>
+
+typedef struct
+{
+  GtkWidget parent_instance;
+  cairo_surface_t *surface;
+  cairo_t *cr;
+  GdkRGBA draw_color;
+} DrawingArea;
+
+typedef struct
+{
+  GtkWidgetClass parent_class;
+} DrawingAreaClass;
+
+G_DEFINE_TYPE (DrawingArea, drawing_area, GTK_TYPE_WIDGET)
+
+static void
+drawing_area_ensure_surface (DrawingArea *area,
+                             gint         width,
+                             gint         height)
+{
+  if (!area->surface ||
+      cairo_image_surface_get_width (area->surface) != width ||
+      cairo_image_surface_get_height (area->surface) != height)
+    {
+      cairo_surface_t *surface;
+
+      surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
+                                            width, height);
+      if (area->surface)
+        {
+          cairo_t *cr;
+
+          cr = cairo_create (surface);
+          cairo_set_source_surface (cr, area->surface, 0, 0);
+          cairo_paint (cr);
+
+          cairo_surface_destroy (area->surface);
+          cairo_destroy (area->cr);
+          cairo_destroy (cr);
+        }
+
+      area->surface = surface;
+      area->cr = cairo_create (surface);
+    }
+}
+
+static void
+drawing_area_size_allocate (GtkWidget           *widget,
+                            const GtkAllocation *allocation,
+                            int                  baseline)
+{
+  DrawingArea *area = (DrawingArea *) widget;
+
+  drawing_area_ensure_surface (area, allocation->width, allocation->height);
+
+  GTK_WIDGET_CLASS (drawing_area_parent_class)->size_allocate (widget, allocation, baseline);
+}
+
+static void
+drawing_area_map (GtkWidget *widget)
+{
+  GtkAllocation allocation;
+
+  GTK_WIDGET_CLASS (drawing_area_parent_class)->map (widget);
+
+  gtk_widget_get_allocation (widget, &allocation);
+  drawing_area_ensure_surface ((DrawingArea *) widget,
+                               allocation.width, allocation.height);
+}
+
+static void
+drawing_area_unmap (GtkWidget *widget)
+{
+  DrawingArea *area = (DrawingArea *) widget;
+
+  g_clear_pointer (&area->cr, cairo_destroy);
+  g_clear_pointer (&area->surface, cairo_surface_destroy);
+
+  GTK_WIDGET_CLASS (drawing_area_parent_class)->unmap (widget);
+}
+
+static void
+drawing_area_snapshot (GtkWidget   *widget,
+		       GtkSnapshot *snapshot)
+{
+  DrawingArea *area = (DrawingArea *) widget;
+  GtkAllocation allocation;
+  cairo_t *cr;
+
+  gtk_widget_get_allocation (widget, &allocation);
+  cr = gtk_snapshot_append_cairo (snapshot,
+                                  &GRAPHENE_RECT_INIT (
+                                    0, 0,
+				    allocation.width,
+				    allocation.height
+                                  ));
+
+  cairo_set_source_rgb (cr, 1, 1, 1);
+  cairo_paint (cr);
+
+  cairo_set_source_surface (cr, area->surface, 0, 0);
+  cairo_paint (cr);
+
+  cairo_set_source_rgb (cr, 0.6, 0.6, 0.6);
+  cairo_rectangle (cr, 0, 0, allocation.width, allocation.height);
+  cairo_stroke (cr);
+
+  cairo_destroy (cr);
+}
+
+static void
+drawing_area_class_init (DrawingAreaClass *klass)
+{
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+  widget_class->size_allocate = drawing_area_size_allocate;
+  widget_class->snapshot = drawing_area_snapshot;
+  widget_class->map = drawing_area_map;
+  widget_class->unmap = drawing_area_unmap;
+}
+
+static void
+drawing_area_apply_stroke (DrawingArea   *area,
+                           GdkDeviceTool *tool,
+                           gdouble        x,
+                           gdouble        y,
+                           gdouble        pressure)
+{
+  if (gdk_device_tool_get_tool_type (tool) == GDK_DEVICE_TOOL_TYPE_ERASER)
+    {
+      cairo_set_line_width (area->cr, 10 * pressure);
+      cairo_set_operator (area->cr, CAIRO_OPERATOR_DEST_OUT);
+    }
+  else
+    {
+      cairo_set_line_width (area->cr, 4 * pressure);
+      cairo_set_operator (area->cr, CAIRO_OPERATOR_SATURATE);
+    }
+
+  cairo_set_source_rgba (area->cr, area->draw_color.red,
+                         area->draw_color.green, area->draw_color.blue,
+                         area->draw_color.alpha * pressure);
+
+  //cairo_set_source_rgba (area->cr, 0, 0, 0, pressure);
+
+  cairo_line_to (area->cr, x, y);
+  cairo_stroke (area->cr);
+  cairo_move_to (area->cr, x, y);
+}
+
+static void
+stylus_gesture_down (GtkGestureStylus *gesture,
+                     gdouble           x,
+                     gdouble           y,
+                     DrawingArea      *area)
+{
+  cairo_new_path (area->cr);
+}
+
+static void
+stylus_gesture_motion (GtkGestureStylus *gesture,
+                       gdouble           x,
+                       gdouble           y,
+                       DrawingArea      *area)
+{
+  GdkTimeCoord *backlog;
+  GdkDeviceTool *tool;
+  gdouble pressure;
+  guint n_items;
+
+  tool = gtk_gesture_stylus_get_device_tool (gesture);
+
+  if (gtk_gesture_stylus_get_backlog (gesture, &backlog, &n_items))
+    {
+      guint i;
+
+      for (i = 0; i < n_items; i++)
+        {
+          drawing_area_apply_stroke (area, tool,
+                                     backlog[i].axes[GDK_AXIS_X],
+                                     backlog[i].axes[GDK_AXIS_Y],
+                                     backlog[i].axes[GDK_AXIS_PRESSURE]);
+        }
+
+      g_free (backlog);
+    }
+  else
+    {
+      if (!gtk_gesture_stylus_get_axis (gesture, GDK_AXIS_PRESSURE, &pressure))
+        pressure = 1;
+
+      drawing_area_apply_stroke (area, tool, x, y, pressure);
+    }
+
+  gtk_widget_queue_draw (GTK_WIDGET (area));
+}
+
+static void
+drawing_area_init (DrawingArea *area)
+{
+  GtkGesture *gesture;
+
+  gtk_widget_set_has_surface (GTK_WIDGET (area), FALSE);
+
+  gesture = gtk_gesture_stylus_new ();
+  g_signal_connect (gesture, "down",
+                    G_CALLBACK (stylus_gesture_down), area);
+  g_signal_connect (gesture, "motion",
+                    G_CALLBACK (stylus_gesture_motion), area);
+  gtk_widget_add_controller (GTK_WIDGET (area), GTK_EVENT_CONTROLLER (gesture));
+
+  area->draw_color = (GdkRGBA) { 0, 0, 0, 1 };
+}
+
+GtkWidget *
+drawing_area_new (void)
+{
+  return g_object_new (drawing_area_get_type (), NULL);
+}
+
+void
+drawing_area_set_color (DrawingArea *area,
+                        GdkRGBA     *color)
+{
+  area->draw_color = *color;
+}
+
+static void
+color_button_color_set (GtkColorButton *button,
+                        DrawingArea    *draw_area)
+{
+  GdkRGBA color;
+
+  gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (button), &color);
+  drawing_area_set_color (draw_area, &color);
+}
+
+GtkWidget *
+do_paint (GtkWidget *toplevel)
+{
+  static GtkWidget *window = NULL;
+
+  if (!window)
+    {
+      GtkWidget *draw_area, *headerbar, *colorbutton;
+
+      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+
+      draw_area = drawing_area_new ();
+      gtk_container_add (GTK_CONTAINER (window), draw_area);
+
+      headerbar = gtk_header_bar_new ();
+      gtk_header_bar_set_title (GTK_HEADER_BAR (headerbar), "Paint");
+      gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (headerbar), TRUE);
+
+      colorbutton = gtk_color_button_new ();
+      g_signal_connect (colorbutton, "color-set",
+                        G_CALLBACK (color_button_color_set), draw_area);
+      gtk_color_chooser_set_rgba (GTK_COLOR_CHOOSER (colorbutton),
+                                  &(GdkRGBA) { 0, 0, 0, 1 });
+
+      gtk_header_bar_pack_end (GTK_HEADER_BAR (headerbar), colorbutton);
+      gtk_window_set_titlebar (GTK_WINDOW (window), headerbar);
+
+      g_signal_connect (window, "destroy",
+                        G_CALLBACK (gtk_widget_destroyed), &window);
+
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_widget_destroy (window);
+
+  return window;
+}

demos/gtk-demo/paintable.c

@@ -56,15 +56,13 @@ gtk_nuclear_snapshot (GtkSnapshot *snapshot,
 
   gtk_snapshot_append_color (snapshot,
                              &(GdkRGBA) { 0.9, 0.75, 0.15, 1.0 },
-                             &GRAPHENE_RECT_INIT (0, 0, width, height),
-                             "Yellow background");
+                             &GRAPHENE_RECT_INIT (0, 0, width, height));
 
   size = MIN (width, height);
   cr = gtk_snapshot_append_cairo (snapshot,
                                   &GRAPHENE_RECT_INIT ((width - size) / 2.0,
                                                        (height - size) / 2.0,
-                                                       size, size),
-                                  "Radioactive Icon");
+                                                       size, size));
   cairo_translate (cr, width / 2.0, height / 2.0);
   cairo_scale (cr, size, size);
   cairo_rotate (cr, rotation);

demos/gtk-demo/popover.c

@@ -58,8 +58,7 @@ static void
 entry_size_allocate_cb (GtkEntry            *entry,
                         const GtkAllocation *allocation,
                         int                  baseline,
-                        GtkAllocation       *out_clip,
-                        gpointer       user_data)
+                        gpointer             user_data)
 {
   GtkEntryIconPosition popover_pos;
   GtkPopover *popover = user_data;
@@ -120,7 +119,7 @@ day_selected_cb (GtkCalendar *calendar,
 
   gtk_widget_show (popover);
 
-  gdk_event_free (event);
+  g_object_unref (event);
 }
 
 GtkWidget *

demos/gtk-demo/search_entry2.c

@@ -27,11 +27,14 @@ changed_cb (GtkEditable *editable)
 }
 
 static gboolean
-window_key_press_event_cb (GtkWidget    *widget,
-			   GdkEvent     *event,
-			   GtkSearchBar *bar)
+window_event_cb (GtkWidget    *widget,
+                 GdkEvent     *event,
+                 GtkSearchBar *bar)
 {
-  return gtk_search_bar_handle_event (bar, event);
+  if (gdk_event_get_event_type (event) == GDK_KEY_PRESS)
+    return gtk_search_bar_handle_event (bar, event);
+
+  return GDK_EVENT_PROPAGATE;
 }
 
 static void
@@ -99,8 +102,7 @@ do_search_entry2 (GtkWidget *do_widget)
       gtk_box_pack_start (GTK_BOX (vbox), searchbar);
 
       /* Hook the search bar to key presses */
-      g_signal_connect (window, "key-press-event",
-                        G_CALLBACK (window_key_press_event_cb), searchbar);
+      g_signal_connect (window, "event", G_CALLBACK (window_event_cb), searchbar);
 
       /* Help */
       label = gtk_label_new ("Start Typing to search");

demos/gtk-demo/spinbutton.c

@@ -33,14 +33,14 @@ hex_spin_output (GtkSpinButton *spin_button)
 {
   GtkAdjustment *adjustment;
   gchar *buf;
-  gint val;
+  gdouble val;
 
   adjustment = gtk_spin_button_get_adjustment (spin_button);
-  val = (gint) gtk_adjustment_get_value (adjustment);
+  val = gtk_adjustment_get_value (adjustment);
   if (fabs (val) < 1e-5)
     buf = g_strdup ("0x00");
   else
-    buf = g_strdup_printf ("0x%.2X", val);
+    buf = g_strdup_printf ("0x%.2X", (gint) val);
   if (strcmp (buf, gtk_spin_button_get_text (spin_button)))
     gtk_spin_button_set_text (spin_button, buf);
   g_free (buf);

demos/gtk-demo/widgetbowl.c

@@ -1,412 +0,0 @@
-/* Benchmark/Widgetbowl
- *
- * This is a version of the Fishbowl demo that instead shows different
- * kinds of widgets, which is useful for comparing the rendering performance
- * of theme specifics.
- */
-
-#include <gtk/gtk.h>
-
-#include "gtkfishbowl.h"
-#include "gtkgears.h"
-
-const char *const css =
-".blurred-button {"
-"  box-shadow: 0px 0px 5px 10px rgba(0, 0, 0, 0.5);"
-"}"
-"";
-
-GtkWidget *fishbowl;
-
-static GtkWidget *
-create_button (void)
-{
-  return gtk_button_new_with_label ("Button");
-}
-static GtkWidget *
-create_blurred_button (void)
-{
-  GtkWidget *w = gtk_button_new ();
-
-  gtk_style_context_add_class (gtk_widget_get_style_context (w), "blurred-button");
-
-  return w;
-}
-
-static GtkWidget *
-create_font_button (void)
-{
-  return gtk_font_button_new ();
-}
-
-static GtkWidget *
-create_level_bar (void)
-{
-  GtkWidget *w = gtk_level_bar_new_for_interval (0, 100);
-
-  gtk_level_bar_set_value (GTK_LEVEL_BAR (w), 50);
-
-  /* Force them to be a bit larger */
-  gtk_widget_set_size_request (w, 200, -1);
-
-  return w;
-}
-
-static GtkWidget *
-create_spinner (void)
-{
-  GtkWidget *w = gtk_spinner_new ();
-
-  gtk_spinner_start (GTK_SPINNER (w));
-
-  return w;
-}
-
-static GtkWidget *
-create_spinbutton (void)
-{
-  GtkWidget *w = gtk_spin_button_new_with_range (0, 10, 1);
-
-  return w;
-}
-
-static GtkWidget *
-create_label (void)
-{
-  GtkWidget *w = gtk_label_new ("pLorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua.");
-
-  gtk_label_set_line_wrap (GTK_LABEL (w), TRUE);
-  gtk_label_set_max_width_chars (GTK_LABEL (w), 100);
-
-  return w;
-}
-
-static GtkWidget *
-create_video (void)
-{
-  GtkMediaStream *stream = gtk_media_file_new_for_resource ("/images/gtk-logo.webm");
-  GtkWidget *w = gtk_image_new_from_paintable (GDK_PAINTABLE (stream));
-  gtk_media_stream_set_loop (stream, TRUE);
-  gtk_media_stream_play (stream);
-  g_object_unref (stream);
-
-  return w;
-}
-
-static GtkWidget *
-create_gears (void)
-{
-  GtkWidget *w = gtk_gears_new ();
-
-  gtk_widget_set_size_request (w, 100, 100);
-
-  return w;
-}
-
-static const struct {
-  const char *name;
-  GtkWidget * (*create_func) (void);
-} widget_types[] = {
-  { "Button",     create_button         },
-  { "Blurbutton", create_blurred_button },
-  { "Fontbutton", create_font_button    },
-  { "Levelbar"  , create_level_bar      },
-  { "Label"     , create_label          },
-  { "Spinner"   , create_spinner        },
-  { "Spinbutton", create_spinbutton     },
-  { "Video",      create_video          },
-  { "Gears",      create_gears          },
-};
-
-static int selected_widget_type = -1;
-static const int N_WIDGET_TYPES = G_N_ELEMENTS (widget_types);
-
-#define N_STATS 5
-
-#define STATS_UPDATE_TIME G_USEC_PER_SEC
-
-static void
-set_widget_type (GtkWidget *headerbar,
-                 int        widget_type_index)
-{
-  GList *children, *l;
-
-  if (widget_type_index == selected_widget_type)
-    return;
-
-  /* Remove everything */
-  children = gtk_container_get_children (GTK_CONTAINER (fishbowl));
-  for (l = children; l; l = l->next)
-    {
-      gtk_container_remove (GTK_CONTAINER (fishbowl), (GtkWidget*)l->data);
-    }
-
-  g_list_free (children);
-
-  selected_widget_type = widget_type_index;
-
-  gtk_header_bar_set_title (GTK_HEADER_BAR (headerbar),
-                            widget_types[selected_widget_type].name);
-}
-
-
-typedef struct _Stats Stats;
-struct _Stats {
-  gint64 last_stats;
-  gint64 last_frame;
-  gint last_suggestion;
-  guint frame_counter_max;
-
-  guint stats_index;
-  guint frame_counter[N_STATS];
-  guint item_counter[N_STATS];
-};
-
-static Stats *
-get_stats (GtkWidget *widget)
-{
-  static GQuark stats_quark = 0;
-  Stats *stats;
-
-  if (G_UNLIKELY (stats_quark == 0))
-    stats_quark = g_quark_from_static_string ("stats");
-
-  stats = g_object_get_qdata (G_OBJECT (widget), stats_quark);
-  if (stats == NULL)
-    {
-      stats = g_new0 (Stats, 1);
-      g_object_set_qdata_full (G_OBJECT (widget), stats_quark, stats, g_free);
-      stats->last_frame = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
-      stats->last_stats = stats->last_frame;
-    }
-
-  return stats;
-}
-
-static void
-do_stats (GtkWidget *widget,
-          GtkWidget *info_label,
-          gint      *suggested_change)
-{
-  Stats *stats;
-  gint64 frame_time;
-
-  stats = get_stats (widget);
-  frame_time = gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget));
-
-  if (stats->last_stats + STATS_UPDATE_TIME < frame_time)
-    {
-      char *new_label;
-      guint i, n_frames;
-
-      n_frames = 0;
-      for (i = 0; i < N_STATS; i++)
-        {
-          n_frames += stats->frame_counter[i];
-        }
-
-      new_label = g_strdup_printf ("widgets - %.1f fps",
-                                   (double) G_USEC_PER_SEC * n_frames
-                                       / (N_STATS * STATS_UPDATE_TIME));
-      gtk_label_set_label (GTK_LABEL (info_label), new_label);
-      g_free (new_label);
-
-      if (stats->frame_counter[stats->stats_index] >= 19 * stats->frame_counter_max / 20)
-        {
-          if (stats->last_suggestion > 0)
-            stats->last_suggestion *= 2;
-          else
-            stats->last_suggestion = 1;
-        }
-      else
-        {
-          if (stats->last_suggestion < 0)
-            stats->last_suggestion--;
-          else
-            stats->last_suggestion = -1;
-          stats->last_suggestion = MAX (stats->last_suggestion, 1 - (int) stats->item_counter[stats->stats_index]);
-        }
-
-      stats->stats_index = (stats->stats_index + 1) % N_STATS;
-      stats->frame_counter[stats->stats_index] = 0;
-      stats->item_counter[stats->stats_index] = stats->item_counter[(stats->stats_index + N_STATS - 1) % N_STATS];
-      stats->last_stats = frame_time;
-
-      if (suggested_change)
-        *suggested_change = stats->last_suggestion;
-      else
-        stats->last_suggestion = 0;
-    }
-  else
-    {
-      if (suggested_change)
-        *suggested_change = 0;
-    }
-
-  stats->last_frame = frame_time;
-  stats->frame_counter[stats->stats_index]++;
-  stats->frame_counter_max = MAX (stats->frame_counter_max, stats->frame_counter[stats->stats_index]);
-}
-
-static void
-stats_update (GtkWidget *widget)
-{
-  Stats *stats;
-
-  stats = get_stats (widget);
-
-  stats->item_counter[stats->stats_index] = gtk_fishbowl_get_count (GTK_FISHBOWL (widget));
-}
-
-static gboolean
-move_fish (GtkWidget     *bowl,
-           GdkFrameClock *frame_clock,
-           gpointer       info_label)
-{
-  gint suggested_change = 0;
-
-  do_stats (bowl, info_label, &suggested_change);
-
-  if (suggested_change > 0)
-    {
-      int i;
-
-      for (i = 0; i < suggested_change; i ++)
-        {
-          GtkWidget *new_widget = widget_types[selected_widget_type].create_func ();
-
-          gtk_container_add (GTK_CONTAINER (fishbowl), new_widget);
-
-        }
-    }
-  else if (suggested_change < 0)
-    {
-      GList *children, *l;
-      int n_removed = 0;
-
-      children = gtk_container_get_children (GTK_CONTAINER (fishbowl));
-      for (l = children; l; l = l->next)
-        {
-          gtk_container_remove (GTK_CONTAINER (fishbowl), (GtkWidget *)l->data);
-          n_removed ++;
-
-          if (n_removed >= (-suggested_change))
-            break;
-        }
-
-      g_list_free (children);
-    }
-
-  stats_update (bowl);
-
-  return G_SOURCE_CONTINUE;
-}
-
-static void
-next_button_clicked_cb (GtkButton *source,
-                        gpointer   user_data)
-{
-  GtkWidget *headerbar = user_data;
-  int new_index;
-
-  if (selected_widget_type + 1 >= N_WIDGET_TYPES)
-    new_index = 0;
-  else
-    new_index = selected_widget_type + 1;
-
-  set_widget_type (headerbar, new_index);
-}
-
-static void
-prev_button_clicked_cb (GtkButton *source,
-                        gpointer   user_data)
-{
-  GtkWidget *headerbar = user_data;
-  int new_index;
-
-  if (selected_widget_type - 1 < 0)
-    new_index = N_WIDGET_TYPES - 1;
-  else
-    new_index = selected_widget_type - 1;
-
-  set_widget_type (headerbar, new_index);
-}
-
-GtkWidget *
-do_widgetbowl (GtkWidget *do_widget)
-{
-  static GtkWidget *window = NULL;
-  static GtkCssProvider *provider = NULL;
-
-  gtk_init ();
-
-  if (provider == NULL)
-    {
-      provider = gtk_css_provider_new ();
-      gtk_css_provider_load_from_data (provider, css, -1);
-      gtk_style_context_add_provider_for_display (gdk_display_get_default (),
-                                                  GTK_STYLE_PROVIDER (provider),
-                                                  GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
-    }
-
-  if (!window)
-    {
-      GtkWidget *info_label;
-      GtkWidget *count_label;
-      GtkWidget *titlebar;
-      GtkWidget *title_box;
-      GtkWidget *left_box;
-      GtkWidget *next_button;
-      GtkWidget *prev_button;
-
-      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
-      titlebar = gtk_header_bar_new ();
-      gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (titlebar), TRUE);
-      info_label = gtk_label_new ("widget - 00.0 fps");
-      count_label = gtk_label_new ("0");
-      fishbowl = gtk_fishbowl_new ();
-      title_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
-      prev_button = gtk_button_new_from_icon_name ("pan-start-symbolic");
-      next_button = gtk_button_new_from_icon_name ("pan-end-symbolic");
-      left_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
-
-      g_object_bind_property (fishbowl, "count", count_label, "label", 0);
-      g_signal_connect (next_button, "clicked", G_CALLBACK (next_button_clicked_cb), titlebar);
-      g_signal_connect (prev_button, "clicked", G_CALLBACK (prev_button_clicked_cb), titlebar);
-
-      gtk_fishbowl_set_animating (GTK_FISHBOWL (fishbowl), TRUE);
-
-      gtk_widget_set_hexpand (title_box, TRUE);
-      gtk_widget_set_halign (title_box, GTK_ALIGN_END);
-
-      gtk_window_set_titlebar (GTK_WINDOW (window), titlebar);
-      gtk_container_add (GTK_CONTAINER (title_box), count_label);
-      gtk_container_add (GTK_CONTAINER (title_box), info_label);
-      gtk_header_bar_pack_end (GTK_HEADER_BAR (titlebar), title_box);
-      gtk_container_add (GTK_CONTAINER (window), fishbowl);
-
-
-      gtk_style_context_add_class (gtk_widget_get_style_context (left_box), "linked");
-      gtk_container_add (GTK_CONTAINER (left_box), prev_button);
-      gtk_container_add (GTK_CONTAINER (left_box), next_button);
-      gtk_header_bar_pack_start (GTK_HEADER_BAR (titlebar), left_box);
-
-      gtk_window_set_display (GTK_WINDOW (window),
-                              gtk_widget_get_display (do_widget));
-      g_signal_connect (window, "destroy",
-                        G_CALLBACK (gtk_widget_destroyed), &window);
-
-      gtk_widget_realize (window);
-      gtk_widget_add_tick_callback (fishbowl, move_fish, info_label, NULL);
-
-      set_widget_type (titlebar, 0);
-    }
-
-  if (!gtk_widget_get_visible (window))
-    gtk_widget_show (window);
-  else
-    gtk_widget_destroy (window);
-
-
-  return window;
-}

demos/icon-browser/icon.list

@@ -32,7 +32,7 @@ media-view-subtitles=The icon used to show subtitles in a media player
 
 [network]
 Name=Network
-Description=Icons related to network status");
+Description=Icons related to network status
 
 network-transmit-receive=The icon used data is being both transmitted and received simultaneously, while the computing device is connected to a network
 network-transmit=The icon used when data is being transmitted, while the computing device is connected to a network

demos/icon-browser/iconbrowserwin.c

@@ -286,13 +286,16 @@ populate (IconBrowserWindow *win)
 }
 
 static gboolean
-key_press_event_cb (GtkWidget *widget,
-                    GdkEvent  *event,
-                    gpointer   data)
+key_event_cb (GtkEventController *controller,
+              guint               keyval,
+              guint               keycode,
+              GdkModifierType     state,
+              gpointer            data)
 {
   IconBrowserWindow *win = data;
 
-  return gtk_search_bar_handle_event (GTK_SEARCH_BAR (win->searchbar), event);
+  return gtk_search_bar_handle_event (GTK_SEARCH_BAR (win->searchbar),
+                                      gtk_get_current_event ());
 }
 
 static void
@@ -451,6 +454,7 @@ static void
 icon_browser_window_init (IconBrowserWindow *win)
 {
   GdkContentFormats *list;
+  GtkEventController *controller;
 
   gtk_widget_init_template (GTK_WIDGET (win));
 
@@ -480,12 +484,30 @@ icon_browser_window_init (IconBrowserWindow *win)
 
   symbolic_toggled (GTK_TOGGLE_BUTTON (win->symbolic_radio), win);
 
+  controller = gtk_event_controller_key_new ();
+  g_signal_connect (controller, "key-pressed", G_CALLBACK (key_event_cb), win);
+  gtk_widget_add_controller (GTK_WIDGET (win), controller);
+
   populate (win);
 }
 
+static void
+icon_browser_window_finalize (GObject *object)
+{
+  IconBrowserWindow *win = ICON_BROWSER_WINDOW (object);
+
+  g_hash_table_unref (win->contexts);
+
+  G_OBJECT_CLASS (icon_browser_window_parent_class)->finalize (object);
+}
+
 static void
 icon_browser_window_class_init (IconBrowserWindowClass *class)
 {
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+
+  object_class->finalize = icon_browser_window_finalize;
+
   g_type_ensure (ICON_STORE_TYPE);
 
   gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
@@ -516,7 +538,6 @@ icon_browser_window_class_init (IconBrowserWindowClass *class)
   gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), item_activated);
   gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), selected_context_changed);
   gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), symbolic_toggled);
-  gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), key_press_event_cb);
   gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), copy_to_clipboard);
 }
 

demos/icon-browser/meson.build

@@ -14,6 +14,7 @@ executable('gtk4-icon-browser',
            dependencies: libgtk_dep,
            include_directories: confinc,
            gui_app: true,
+           link_args: extra_demo_ldflags,
            install: true)
 
 install_data('gtk4-icon-browser.desktop', install_dir: gtk_applicationsdir)

demos/icon-browser/window.ui

@@ -9,7 +9,6 @@
     <property name="title" translatable="yes">Icon Browser</property>
     <property name="default-width">1024</property>
     <property name="default-height">768</property>
-    <signal name="key-press-event" handler="key_press_event_cb"/>
     <child type="titlebar">
       <object class="GtkHeaderBar" id="header">
         <property name="title" translatable="yes">Icon Browser</property>

demos/widget-factory/meson.build

@@ -9,6 +9,7 @@ executable('gtk4-widget-factory',
            dependencies: libgtk_dep,
            include_directories: confinc,
            gui_app: true,
+           link_args: extra_demo_ldflags,
            install: true)
 
 # desktop file

demos/widget-factory/widget-factory.c

@@ -1082,7 +1082,7 @@ set_accel (GtkApplication *app, GtkWidget *widget)
 typedef struct
 {
   GtkTextView tv;
-  cairo_surface_t *surface;
+  GdkPixbuf *pixbuf;
 } MyTextView;
 
 typedef GtkTextViewClass MyTextViewClass;
@@ -1101,10 +1101,10 @@ my_tv_draw_layer (GtkTextView      *widget,
 {
   MyTextView *tv = (MyTextView *)widget;
 
-  if (layer == GTK_TEXT_VIEW_LAYER_BELOW_TEXT && tv->surface)
+  if (layer == GTK_TEXT_VIEW_LAYER_BELOW_TEXT && tv->pixbuf)
     {
       cairo_save (cr);
-      cairo_set_source_surface (cr, tv->surface, 0.0, 0.0);
+      gdk_cairo_set_source_pixbuf (cr, tv->pixbuf, 0.0, 0.0);
       cairo_paint_with_alpha (cr, 0.333);
       cairo_restore (cr);
     }
@@ -1115,8 +1115,7 @@ my_tv_finalize (GObject *object)
 {
   MyTextView *tv = (MyTextView *)object;
 
-  if (tv->surface)
-    cairo_surface_destroy (tv->surface);
+  g_clear_object (&tv->pixbuf);
 
   G_OBJECT_CLASS (my_text_view_parent_class)->finalize (object);
 }
@@ -1134,18 +1133,14 @@ my_text_view_class_init (MyTextViewClass *class)
 static void
 my_text_view_set_background (MyTextView *tv, const gchar *filename)
 {
-  GdkPixbuf *pixbuf;
   GError *error = NULL;
 
-  if (tv->surface)
-    cairo_surface_destroy (tv->surface);
-
-  tv->surface = NULL;
+  g_clear_object (&tv->pixbuf);
 
   if (filename == NULL)
     return;
 
-  pixbuf = gdk_pixbuf_new_from_file (filename, &error);
+  tv->pixbuf = gdk_pixbuf_new_from_file (filename, &error);
   if (error)
     {
       g_warning ("%s", error->message);
@@ -1153,10 +1148,6 @@ my_text_view_set_background (MyTextView *tv, const gchar *filename)
       return;
     }
 
-  tv->surface = gdk_cairo_surface_create_from_pixbuf (pixbuf, 1, NULL);
-
-  g_object_unref (pixbuf);
-
   gtk_widget_queue_draw (GTK_WIDGET (tv));
 }
 
@@ -1655,7 +1646,6 @@ activate (GApplication *app)
   gint i;
   GPermission *permission;
   GAction *action;
-  GtkGesture *gesture;
 
   g_type_ensure (my_text_view_get_type ());
 
@@ -1680,6 +1670,7 @@ activate (GApplication *app)
   gtk_builder_add_callback_symbol (builder, "reset_icon_size", (GCallback)reset_icon_size);
   gtk_builder_add_callback_symbol (builder, "scale_format_value", (GCallback)scale_format_value);
   gtk_builder_add_callback_symbol (builder, "scale_format_value_blank", (GCallback)scale_format_value_blank);
+  gtk_builder_add_callback_symbol (builder, "osd_frame_pressed", (GCallback)osd_frame_pressed);
 
   gtk_builder_connect_signals (builder, NULL);
 
@@ -1897,10 +1888,6 @@ activate (GApplication *app)
   g_signal_connect (adj, "value-changed", G_CALLBACK (adjustment3_value_changed), widget);
   g_signal_connect (adj, "value-changed", G_CALLBACK (adjustment3_value_changed), widget2);
 
-  widget = (GtkWidget *)gtk_builder_get_object (builder, "osd_frame");
-  gesture = gtk_gesture_multi_press_new (widget);
-  g_signal_connect (gesture, "pressed", G_CALLBACK (osd_frame_pressed), widget);
-
   gtk_widget_show (GTK_WIDGET (window));
 
   g_object_unref (builder);

demos/widget-factory/widget-factory.ui

@@ -468,7 +468,8 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
                         <child>
                           <object class="GtkEntry" id="entry1">
                             <property name="can-focus">1</property>
-                            <property name="invisible-char">•</property>
+                            <property name="enable-emoji-completion">1</property>
+                            <property name="invisible_char">•</property>
                             <property name="placeholder-text" translatable="yes">Click icon to change mode</property>
                             <property name="secondary-icon-name">view-refresh-symbolic</property>
                             <property name="secondary-icon-tooltip-text">Change mode</property>
@@ -878,6 +879,7 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
                           <object class="GtkFontButton" id="fontbutton1">
                             <property name="can-focus">1</property>
                             <property name="receives-default">1</property>
+                            <property name="level">family|style|size|features|variations</property>
                           </object>
                           <packing>
                             <property name="position">6</property>
@@ -3099,6 +3101,11 @@ microphone-sensitivity-medium-symbolic</property>
                                 </child>
                               </object>
                             </child>
+                            <child>
+                              <object class="GtkGestureMultiPress">
+                                <signal name="pressed" handler="osd_frame_pressed" object="osd_frame" swapped="no"/>
+                              </object>
+                            </child>
                           </object>
                         </child>
                       </object>

docs/CODE-OWNERS

@@ -0,0 +1,68 @@
+# These are the people responsible for subsystems in GTK; if you're opening
+# a merge request for files listed here, please add the following people to
+# the list of reviewers
+
+# The syntax of this file is similar to the GitHub CODEOWNERS file:
+#   https://help.github.com/articles/about-codeowners/
+# Which, in turn, is similar to the .gitignore and .gitattributes files:
+#
+#  - comments start with `#`
+#  - the first column contains paths and globs
+#  - the second column contains GitLab user names or email addresses,
+#    separated by spaces
+#
+# If you want to be responsible for code reviews in specific sections of
+# the GTK code base, add yourself here.
+
+# Maintainer
+*                       @matthiasc
+
+# Build system
+meson.build             @ebassi @nirbheek
+*.py                    @ebassi
+
+# CSS
+gtk/gtkcss*.[ch]        @otte @baedert
+gtk/gtkstyle*.[ch]      @otte @baedert
+
+# Gestures
+gtk/gtkeventcontroller* @carlosg
+gtk/gtkgesture*.[ch]    @carlosg
+
+# GtkFileChooser
+gtk/gtkfilechooser*     @federico
+gtk/gtkfilesystem*      @federico
+gtk/gtkfilefilter*      @federico
+
+# GtkFontChooser
+gtk/gtkfontchooser*     @matthiasc
+
+# Input methods
+gtk/gtkimcontext*       @carlosg
+
+# Media
+gtk/gtkmedia*           @otte
+
+# GSK
+gsk                     @otte @baedert @ebassi
+
+# GL rendering
+gsk/gl                  @baedert @ebassi
+
+# Vulkan rendering
+gsk/vulkan
+
+# Documentation
+docs/                   @ebassi @dboles
+
+# Wayland
+gdk/wayland             @jadahl
+
+# X11
+gdk/x11                 @ofourdan @matthiasc
+
+# Themes
+gtk/themes              @lapoc @jimmac
+
+# Inspector
+gtk/inspector           @otte @matthiasc

docs/dnd_internals.txt

@@ -71,9 +71,6 @@ straightforward manner.
 void             gdk_drag_status        (GdkDragContext   *context,
 				         GdkDragAction     action,
 					 guint32           time);
-void             gdk_drop_reply         (GdkDragContext   *context,
-					 gboolean          ok,
-					 guint32           time);
 void             gdk_drop_finish        (GdkDragContext   *context,
 					 gboolean          success,
 					 guint32           time);

docs/reference/gdk/gdk4-docs.xml

@@ -27,12 +27,12 @@
     <xi:include href="xml/gdkmonitor.xml" />
     <xi:include href="xml/regions.xml" />
     <xi:include href="xml/textures.xml" />
+    <xi:include href="xml/gdkpaintable.xml" />
     <xi:include href="xml/rgba_colors.xml" />
     <xi:include href="xml/cursors.xml" />
-    <xi:include href="xml/windows.xml" />
+    <xi:include href="xml/gdksurface.xml" />
     <xi:include href="xml/gdkframeclock.xml" />
     <xi:include href="xml/gdkframetimings.xml" />
-    <xi:include href="xml/gdkdrawingcontext.xml" />
     <xi:include href="xml/gdkdrawcontext.xml" />
     <xi:include href="xml/gdkglcontext.xml" />
     <xi:include href="xml/gdkvulkancontext.xml" />

docs/reference/gdk/gdk4-sections.txt

@@ -167,8 +167,8 @@ gdk_rgba_get_type
 </SECTION>
 
 <SECTION>
-<TITLE>Windows</TITLE>
-<FILE>windows</FILE>
+<TITLE>GdkSurface</TITLE>
+<FILE>gdksurface</FILE>
 GdkSurface
 GdkSurfaceType
 GdkSurfaceClass
@@ -233,13 +233,10 @@ gdk_surface_set_opaque_region
 gdk_surface_create_gl_context
 gdk_surface_create_vulkan_context
 
-<SUBSECTION>
-gdk_surface_begin_draw_frame
-gdk_surface_end_draw_frame
-
 <SUBSECTION>
 gdk_surface_invalidate_rect
 gdk_surface_invalidate_region
+gdk_surface_queue_expose
 gdk_surface_freeze_updates
 gdk_surface_thaw_updates
 gdk_surface_get_frame_clock
@@ -407,15 +404,12 @@ gdk_pango_layout_line_get_clip_region
 <TITLE>Cairo Interaction</TITLE>
 <FILE>cairo_interaction</FILE>
 gdk_surface_create_similar_surface
-gdk_surface_create_similar_image_surface
 gdk_cairo_get_clip_rectangle
-gdk_cairo_get_drawing_context
 gdk_cairo_set_source_rgba
 gdk_cairo_set_source_pixbuf
 gdk_cairo_rectangle
 gdk_cairo_region
 gdk_cairo_region_create_from_surface
-gdk_cairo_surface_create_from_pixbuf
 gdk_cairo_draw_from_gl
 gdk_cairo_surface_upload_to_gl
 </SECTION>
@@ -633,7 +627,6 @@ GDK_BUTTON_SECONDARY
 <SUBSECTION>
 gdk_event_new
 gdk_event_copy
-gdk_event_free
 gdk_event_get_axes
 gdk_event_get_button
 gdk_event_get_click_count
@@ -661,7 +654,7 @@ gdk_event_get_crossing_detail
 gdk_event_get_crossing_mode
 gdk_event_get_drag_context
 gdk_event_get_focus_in
-gdk_event_get_grab_window
+gdk_event_get_grab_surface
 gdk_event_get_motion_history
 gdk_event_get_key_group
 gdk_event_get_key_is_modifier
@@ -704,19 +697,27 @@ gdk_event_get_type
 </SECTION>
 
 <SECTION>
-<TITLE>Paintable</TITLE>
-<FILE>paintable</FILE>
+<FILE>gdkpaintable</FILE>
+<TITLE>GdkPaintable/TITLE>
 GdkPaintable
-gdk_paintable_snapshot
+GdkPaintableFlags
 gdk_paintable_get_current_image
+gdk_paintable_snapshot
 gdk_paintable_get_flags
 gdk_paintable_get_intrinsic_width
 gdk_paintable_get_intrinsic_height
 gdk_paintable_get_intrinsic_aspect_ratio
 gdk_paintable_compute_concrete_size
+
+<SUBSECTION>
 gdk_paintable_invalidate_contents
 gdk_paintable_invalidate_size
-<SECTION>
+gdk_paintable_new_empty
+
+<SUBSECTION Private>
+GDK_TYPE_PAINTABLE
+gdk_paintable_get_type
+</SECTION>
 
 <SECTION>
 <TITLE>Textures</TITLE>
@@ -728,8 +729,9 @@ gdk_texture_new_from_file
 gdk_texture_get_width
 gdk_texture_get_height
 gdk_texture_download
+gdk_texture_save_to_png
 GdkMemoryFormat
-GDK_MEMORY_FORMAT_DEFAULT
+GDK_MEMORY_DEFAULT
 gdk_memory_texture_new
 gdk_gl_texture_new
 gdk_gl_texture_release
@@ -779,13 +781,11 @@ gdk_cursor_get_type
 <FILE>dnd</FILE>
 GdkDragContext
 GdkDragCancelReason
-gdk_drop_reply
 gdk_drag_drop_done
 gdk_drag_begin
 gdk_drop_finish
 GdkDragAction
 gdk_drag_status
-gdk_drag_drop_succeeded
 
 gdk_drag_context_get_display
 gdk_drag_context_get_actions
@@ -1106,6 +1106,10 @@ gdk_frame_timings_get_type
 GdkDrawContext
 gdk_draw_context_get_display
 gdk_draw_context_get_surface
+gdk_draw_context_begin_frame
+gdk_draw_context_end_frame
+gdk_draw_context_is_in_frame
+gdk_draw_context_get_frame_region
 
 <SUBSECTION Standard>
 GDK_DRAW_CONTEXT
@@ -1139,7 +1143,6 @@ gdk_gl_context_is_legacy
 <SUBSECTION>
 GdkGLError
 gdk_gl_context_realize
-gdk_gl_context_get_damage
 gdk_gl_context_make_current
 gdk_gl_context_get_current
 gdk_gl_context_clear_current
@@ -1184,23 +1187,12 @@ GDK_IS_MONITOR
 </SECTION>
 
 <SECTION>
-<FILE>gdkdrawingcontext</FILE>
-GdkDrawingContext
-gdk_drawing_context_get_surface
-gdk_drawing_context_get_clip
-gdk_drawing_context_get_cairo_context
-gdk_drawing_context_is_valid
-gdk_drawing_context_get_paint_context
+<FILE>gdkcairocontext</FILE>
+GdkCairoContext
+gdk_cairo_context_cairo_create
 
 <SUBSECTION Standard>
-gdk_drawing_context_get_type
-GdkDrawingContextClass
-GDK_TYPE_DRAWING_CONTEXT
-GDK_DRAWING_CONTEXT_CLASS
-GDK_DRAWING_CONTEXT_GET_CLASS
-GDK_IS_DRAWING_CONTEXT_CLASS
-GDK_DRAWING_CONTEXT
-GDK_IS_DRAWING_CONTEXT
+gdk_cairo_context_get_type
 </SECTION>
 
 <SECTION>
@@ -1332,3 +1324,4 @@ GDK_CONTENT_DESERIALIZER
 GDK_IS_CONTENT_DESERIALIZER
 gdk_content_deserializer_get_type
 </SECTION>
+

docs/reference/gdk/gdk4.types

@@ -1,18 +1,26 @@
 gdk_app_launch_context_get_type
+gdk_clipboard_get_type
+gdk_content_deserializer_get_type
+gdk_content_formats_get_type
+gdk_content_serializer_get_type
 gdk_cursor_get_type
 gdk_device_get_type
 gdk_device_pad_get_type
+gdk_device_tool_get_type
 gdk_display_get_type
 gdk_display_manager_get_type
 gdk_drag_context_get_type
-gdk_drawing_context_get_type
+gdk_event_get_type
 gdk_frame_clock_get_type
 gdk_gl_context_get_type
+gdk_gl_texture_get_type
 gdk_keymap_get_type
+gdk_memory_texture_get_type
 gdk_monitor_get_type
+gdk_paintable_get_type
+gdk_rgba_get_type
 gdk_seat_get_type
+gdk_snapshot_get_type
 gdk_surface_get_type
-gdk_content_serializer_get_type
-gdk_content_deserializer_get_type
-gdk_clipboard_get_type
-gdk_content_formats_get_type
+gdk_texture_get_type
+gdk_vulkan_context_get_type

docs/reference/gdk/meson.build

@@ -3,7 +3,6 @@ private_headers = [
   'gdkmarshalers.h',
   'gdkkeysyms.h',
   'gdkinternals.h',
-  'gdkprivate.h',
   'gdk-private.h',
   'gdkapplaunchcontextprivate.h',
   'gdkclipboardprivate.h',
@@ -11,31 +10,39 @@ private_headers = [
   'gdkcontentproviderprivate.h',
   'gdkcursorprivate.h',
   'gdkdeviceprivate.h',
+  'gdkdevicepadprivate.h',
+  'gdkdevicetoolprivate.h',
   'gdkdisplaymanagerprivate.h',
   'gdkdisplayprivate.h',
   'gdkdndprivate.h',
   'gdkdrawcontextprivate.h',
   'gdkeventsprivate.h',
+  'gdkframeclockidleprivate.h',
   'gdkframeclockprivate.h',
   'gdkglcontextprivate.h',
+  'gdkgltextureprivate.h',
   'gdkkeysprivate.h',
   'gdkmonitorprivate.h',
+  'gdkmemorytextureprivate.h',
   'gdkpipeiostreamprivate.h',
   'gdkscreenprivate.h',
   'gdkseatdefaultprivate.h',
   'gdkseatprivate.h',
+  'gdksnapshotprivate.h',
+  'gdksurfaceimpl.h',
   'gdktextureprivate.h',
-  'gdkvisualprivate.h',
   'gdkvulkancontextprivate.h',
   'keyname-table.h',
-  'x11/gdkprivate-x11.h',
+  'gdkprivate-x11.h',
   'x11/gdkeventsource.h',
-  'wayland/keyboard-shortcuts-inhibit-unstable-v1-client-protocol.h',
-  'wayland/pointer-gestures-unstable-v1-client-protocol.h',
-  'wayland/server-decoration-client-protocol.h',
-  'wayland/tablet-unstable-v2-client-protocol.h',
-  'wayland/xdg-foreign-unstable-v1-client-protocol.h',
-  'wayland/xdg-shell-unstable-v6-client-protocol.h',
+  'gtk-primary-selection-client-protocol.h',
+  'gtk-shell-client-protocol.h',
+  'keyboard-shortcuts-inhibit-unstable-v1-client-protocol.h',
+  'pointer-gestures-unstable-v1-client-protocol.h',
+  'server-decoration-client-protocol.h',
+  'tablet-unstable-v2-client-protocol.h',
+  'xdg-foreign-unstable-v1-client-protocol.h',
+  'xdg-shell-unstable-v6-client-protocol.h',
   'win32',
   'quartz',
   'broadway',
@@ -86,13 +93,12 @@ gnome.gtkdoc('gdk4',
              mode: 'none',
              main_xml: 'gdk4-docs.xml',
              src_dir: [
-	       join_paths(meson.source_root(), 'gdk'),
-	       join_paths(meson.source_root(), 'gdk', 'x11'),
-	       join_paths(meson.source_root(), 'gdk', 'wayland'),
-	       join_paths(meson.build_root(), 'gdk'),
+               gdkinc,
+               gdkx11_inc,
+               gdkwayland_inc,
 	     ],
              dependencies: libgtk_dep,
-             gobject_typesfile: join_paths(meson.source_root(), 'docs/reference/gdk/gdk4.types'),
+             gobject_typesfile: join_paths(meson.current_source_dir(), 'gdk4.types'),
              scan_args: [
                '--ignore-decorators=_GDK_EXTERN|G_GNUC_WARN_UNUSED_RESULT',
                '--ignore-headers=' + ' '.join(private_headers),

docs/reference/gsk/gsk4-sections.txt

@@ -5,8 +5,6 @@ gsk_renderer_get_surface
 gsk_renderer_get_display
 gsk_renderer_realize
 gsk_renderer_unrealize
-gsk_renderer_begin_draw_frame
-gsk_renderer_end_draw_frame
 gsk_renderer_render
 gsk_renderer_render_texture
 <SUBSECTION Standard>
@@ -31,8 +29,6 @@ gsk_render_node_serialize
 gsk_render_node_deserialize
 gsk_render_node_write_to_file
 GskScalingFilter
-gsk_render_node_set_name
-gsk_render_node_get_name
 gsk_render_node_get_bounds
 
 <SUBSECTION Nodes>
@@ -72,6 +68,10 @@ gsk_container_node_get_child
 gsk_transform_node_new
 gsk_transform_node_get_child
 gsk_transform_node_peek_transform
+gsk_offset_node_new
+gsk_offset_node_get_child
+gsk_offset_node_get_x_offset
+gsk_offset_node_get_y_offset
 gsk_opacity_node_new
 gsk_opacity_node_get_child
 gsk_opacity_node_get_opacity
@@ -110,6 +110,9 @@ gsk_text_node_get_y
 gsk_blur_node_new
 gsk_blur_node_get_child
 gsk_blur_node_get_radius
+gsk_debug_node_new
+gsk_debug_node_get_child
+gsk_debug_node_get_message
 <SUBSECTION Standard>
 GSK_IS_RENDER_NODE
 GSK_RENDER_NODE

docs/reference/gsk/meson.build

@@ -40,11 +40,10 @@ gnome.gtkdoc('gsk4',
              mode: 'none',
              main_xml: 'gsk4-docs.xml',
              src_dir: [
-	       join_paths(meson.source_root(), 'gsk'),
-	       join_paths(meson.build_root(), 'gsk'),
+               gskinc,
 	     ],
              dependencies: libgtk_dep,
-             gobject_typesfile: join_paths(meson.source_root(), 'docs/reference/gsk/gsk4.types'),
+             gobject_typesfile: join_paths(meson.current_source_dir(), 'gsk4.types'),
              scan_args: [
                '--ignore-decorators=_GDK_EXTERN',
                '--ignore-headers=' + ' '.join(private_headers),

docs/reference/gtk/broadway.xml

@@ -46,7 +46,7 @@ broadwayd :5
 Then point your web browser at <literal>http://127.0.0.1:8085</literal>.
 Start your applications like this:
 <programlisting>
-GDK_BACKEND=broadway BROADWAY_DISPLAY=:5 gtk3-demo
+GDK_BACKEND=broadway BROADWAY_DISPLAY=:5 gtk4-demo
 </programlisting>
 </para>
 

docs/reference/gtk/building.sgml

@@ -294,13 +294,52 @@ How to compile GTK+ itself
           <command>meson</command>
           <sbr/>
           <group>
-            <arg choice="plain">-Ddocumentation=true</arg>
-            <arg choice="plain">-Ddocumentation=false</arg>
+            <arg choice="plain">-Dx11-backend=true</arg>
+            <arg choice="plain">-Dx11-backend=false</arg>
           </group>
           <sbr/>
           <group>
-            <arg choice="plain">-Dman-pages=true</arg>
-            <arg choice="plain">-Dman-pages=false</arg>
+            <arg choice="plain">-Dwayland-backend=true</arg>
+            <arg choice="plain">-Dwayland-backend=false</arg>
+          </group>
+          <sbr/>
+          <group>
+            <arg choice="plain">-Dbroadway-backend=true</arg>
+            <arg choice="plain">-Dbroadway-backend=false</arg>
+          </group>
+          <sbr/>
+          <group>
+            <arg choice="plain">-Dwin32-backend=true</arg>
+            <arg choice="plain">-Dwin32-backend=false</arg>
+          </group>
+          <sbr/>
+          <group>
+            <arg choice="plain">-Dquartz-backend=true</arg>
+            <arg choice="plain">-Dquartz-backend=false</arg>
+          </group>
+          <sbr/>
+          <group>
+            <arg choice="plain">-Dmedia=gstreamer</arg>
+            <arg choice="plain">-Dmedia=ffmpeg</arg>
+            <arg choice="plain">-Dmedia=all</arg>
+            <arg choice="plain">-Dmedia=none</arg>
+          </group>
+          <sbr/>
+          <group>
+            <arg choice="plain">-Dvulkan=yes</arg>
+            <arg choice="plain">-Dvulkan=no</arg>
+            <arg choice="plain">-Dvulkan=auto</arg>
+          </group>
+          <sbr/>
+          <group>
+            <arg choice="plain">-Dxinerama=yes</arg>
+            <arg choice="plain">-Dxinerama=no</arg>
+            <arg choice="plain">-Dxinerama=auto</arg>
+          </group>
+          <sbr/>
+          <group>
+            <arg choice="plain">-Dcloudproviders=true</arg>
+            <arg choice="plain">-Dcloudproviders=false</arg>
           </group>
           <sbr/>
           <group>
@@ -316,45 +355,13 @@ How to compile GTK+ itself
           </group>
           <sbr/>
           <group>
-            <arg choice="plain">-Dvulkan=yes</arg>
-            <arg choice="plain">-Dvulkan=no</arg>
-            <arg choice="plain">-Dvulkan=auto</arg>
+            <arg choice="plain">-Ddocumentation=true</arg>
+            <arg choice="plain">-Ddocumentation=false</arg>
           </group>
           <sbr/>
           <group>
-            <arg choice="plain">-Dx11-backend=true</arg>
-            <arg choice="plain">-Dx11-backend=false</arg>
-          </group>
-          <sbr/>
-          <group>
-            <arg choice="plain">-Dcloudproviders=true</arg>
-            <arg choice="plain">-Dcloudproviders=false</arg>
-          </group>
-          <sbr/>
-          <group>
-            <arg choice="plain">-Dxinerama=yes</arg>
-            <arg choice="plain">-Dxinerama=no</arg>
-            <arg choice="plain">-Dxinerama=auto</arg>
-          </group>
-          <sbr/>
-          <group>
-            <arg choice="plain">-Dwin32-backend=true</arg>
-            <arg choice="plain">-Dwin32-backend=false</arg>
-          </group>
-          <sbr/>
-          <group>
-            <arg choice="plain">-Dquartz-backend=true</arg>
-            <arg choice="plain">-Dquartz-backend=false</arg>
-          </group>
-          <sbr/>
-          <group>
-            <arg choice="plain">-Dbroadway-backend=true</arg>
-            <arg choice="plain">-Dbroadway-backend=false</arg>
-          </group>
-          <sbr/>
-          <group>
-            <arg choice="plain">-Dwayland-backend=true</arg>
-            <arg choice="plain">-Dwayland-backend=false</arg>
+            <arg choice="plain">-Dman-pages=true</arg>
+            <arg choice="plain">-Dman-pages=false</arg>
           </group>
           <sbr/>
           <group>

docs/reference/gtk/getting_started.xml

@@ -50,7 +50,7 @@
     <para>
       You can compile the program above with GCC using:
       <literallayout>
-        <literal>gcc `pkg-config --cflags gtk+-3.0` -o example-0 example-0.c `pkg-config --libs gtk+-3.0`</literal>
+        <literal>gcc `pkg-config --cflags gtk+-4.0` -o example-0 example-0.c `pkg-config --libs gtk+-4.0`</literal>
       </literallayout>
     </para>
 
@@ -160,7 +160,7 @@
     <para>
       You can compile the program above with GCC using:
       <literallayout>
-        <literal>gcc `pkg-config --cflags gtk+-3.0` -o example-1 example-1.c `pkg-config --libs gtk+-3.0`</literal>
+        <literal>gcc `pkg-config --cflags gtk+-4.0` -o example-1 example-1.c `pkg-config --libs gtk+-4.0`</literal>
       </literallayout>
     </para>
   </section>
@@ -238,7 +238,7 @@
     <para>
       You can compile the program above with GCC using:
       <literallayout>
-        <literal>gcc `pkg-config --cflags gtk+-3.0` -o example-2 example-2.c `pkg-config --libs gtk+-3.0`</literal>
+        <literal>gcc `pkg-config --cflags gtk+-4.0` -o example-2 example-2.c `pkg-config --libs gtk+-4.0`</literal>
       </literallayout>
     </para>
   </section>
@@ -264,7 +264,7 @@
     <para>
       You can compile the program above with GCC using:
       <literallayout>
-        <literal>gcc `pkg-config --cflags gtk+-3.0` -o example-3 example-3.c `pkg-config --libs gtk+-3.0`</literal>
+        <literal>gcc `pkg-config --cflags gtk+-4.0` -o example-3 example-3.c `pkg-config --libs gtk+-4.0`</literal>
       </literallayout>
     </para>
 
@@ -333,7 +333,7 @@
 
     <para>The full, buildable sources for these examples can be found
     in the examples/ directory of the GTK+ source distribution, or
-    <ulink url="https://git.gnome.org/browse/gtk+/tree/examples">online</ulink> in the GTK+ git repository.
+    <ulink url="https://gitlab.gnome.org/GNOME/gtk/blob/master/examples">online</ulink> in the GTK+ git repository.
     You can build each example separately by using make with the <filename>Makefile.example</filename>
     file. For more information, see the <filename>README</filename> included in the
     examples directory.</para>
@@ -450,13 +450,13 @@ example_app_window_class_init (ExampleAppWindowClass *class)
 
  ...
         ]]></programlisting>
-        <para>(<ulink url="https://git.gnome.org/browse/gtk+/tree/examples/application2/exampleappwin.c">full source</ulink>)</para>
+        <para>(<ulink url="https://gitlab.gnome.org/GNOME/gtk/blob/master/examples/application2/exampleappwin.c">full source</ulink>)</para>
       </informalexample>
 
       <para>You may have noticed that we used the <literal>_from_resource(<!-- -->)</literal> variant
-      of the function that sets a template. Now we need to use GLib's resource
-      functionality to include the ui file in the binary. This is commonly
-      done by listing all resources in a .gresource.xml file, such as this:
+      of the function that sets a template. Now we need to use <ulink url="https://developer.gnome.org/gio/stable/GResource.html">GLib's resource functionality</ulink>
+      to include the ui file in the binary. This is commonly done by listing
+      all resources in a .gresource.xml file, such as this:
       </para>
 
       <informalexample>
@@ -518,7 +518,7 @@ example_app_window_class_init (ExampleAppWindowClass *class)
 
 ...
         ]]></programlisting>
-        <para>(<ulink url="https://git.gnome.org/browse/gtk+/tree/examples/application3/exampleappwin.c">full source</ulink>)</para>
+        <para>(<ulink url="https://gitlab.gnome.org/GNOME/gtk/blob/master/examples/application3/exampleappwin.c">full source</ulink>)</para>
       </informalexample>
 
       <para>Now we revisit the example_app_window_open() function that
@@ -567,7 +567,7 @@ example_app_window_open (ExampleAppWindow *win,
 
 ...
         ]]></programlisting>
-        <para>(<ulink url="https://git.gnome.org/browse/gtk+/tree/examples/application3/exampleappwin.c">full source</ulink>)</para>
+        <para>(<ulink url="https://gitlab.gnome.org/GNOME/gtk/blob/master/examples/application3/exampleappwin.c">full source</ulink>)</para>
       </informalexample>
 
       <para>Note that we did not have to touch the stack switcher
@@ -665,7 +665,7 @@ example_app_class_init (ExampleAppClass *class)
 
 ...
         </programlisting>
-        <para>(<ulink url="https://git.gnome.org/browse/gtk+/tree/examples/application4/exampleapp.c">full source</ulink>)</para>
+        <para>(<ulink url="https://gitlab.gnome.org/GNOME/gtk/blob/master/examples/application4/exampleapp.c">full source</ulink>)</para>
       </informalexample>
 
       <para>Our preferences menu item does not do anything yet,
@@ -731,7 +731,7 @@ example_app_window_init (ExampleAppWindow *win)
 
 ...
         ]]></programlisting>
-        <para>(<ulink url="https://git.gnome.org/browse/gtk+/tree/examples/application5/exampleappwin.c">full source</ulink>)</para>
+        <para>(<ulink url="https://gitlab.gnome.org/GNOME/gtk/blob/master/examples/application5/exampleappwin.c">full source</ulink>)</para>
       </informalexample>
 
       <para>The code to connect the font setting is a little more involved,
@@ -780,7 +780,7 @@ preferences_activated (GSimpleAction *action,
 
 ...
         ]]></programlisting>
-        <para>(<ulink url="https://git.gnome.org/browse/gtk+/tree/examples/application6/exampleapp.c">full source</ulink>)</para>
+        <para>(<ulink url="https://gitlab.gnome.org/GNOME/gtk/blob/master/examples/application6/exampleapp.c">full source</ulink>)</para>
       </informalexample>
 
       <para>After all this work, our application can now show
@@ -866,7 +866,7 @@ example_app_window_init (ExampleAppWindow *win)
 
 ...
         ]]></programlisting>
-        <para>(<ulink url="https://git.gnome.org/browse/gtk+/tree/examples/application7/exampleappwin.c">full source</ulink>)</para>
+        <para>(<ulink url="https://gitlab.gnome.org/GNOME/gtk/blob/master/examples/application7/exampleappwin.c">full source</ulink>)</para>
       </informalexample>
 
       <para>With the search bar, our application now looks like this:</para>
@@ -926,7 +926,7 @@ example_app_window_init (ExampleAppWindow *win)
 
 ...
         ]]></programlisting>
-        <para>(<ulink url="https://git.gnome.org/browse/gtk+/tree/examples/application8/exampleappwin.c">full source</ulink>)</para>
+        <para>(<ulink url="https://gitlab.gnome.org/GNOME/gtk/blob/master/examples/application8/exampleappwin.c">full source</ulink>)</para>
       </informalexample>
 
       <para>What our application looks like now:</para>
@@ -989,12 +989,12 @@ example_app_window_init (ExampleAppWindow *win)
 
 ...
         </programlisting>
-        <para>(<ulink url="https://git.gnome.org/browse/gtk+/tree/examples/application9/exampleappwin.c">full source</ulink>)</para>
+        <para>(<ulink url="https://gitlab.gnome.org/GNOME/gtk/blob/master/examples/application9/exampleappwin.c">full source</ulink>)</para>
       </informalexample>
 
       <para>We also need a function that counts the lines of the currently
       active tab, and updates the @lines label. See the
-      <ulink url="https://git.gnome.org/browse/gtk+/tree/examples/application9/exampleappwin.c">full source</ulink>
+      <ulink url="https://gitlab.gnome.org/GNOME/gtk/blob/master/examples/application9/exampleappwin.c">full source</ulink>
       if you are interested in the details.</para>
 
       <para>This brings our example application to this appearance:</para>
@@ -1078,7 +1078,7 @@ example_app_window_init (ExampleAppWindow *win)
     <para>
       You can compile the program above with GCC using:
       <literallayout>
-        <literal>gcc `pkg-config --cflags gtk+-3.0` -o example-4 example-4.c `pkg-config --libs gtk+-3.0`</literal>
+        <literal>gcc `pkg-config --cflags gtk+-4.0` -o example-4 example-4.c `pkg-config --libs gtk+-4.0`</literal>
       </literallayout>
     </para>
   </section>

docs/reference/gtk/gtk4-broadwayd.xml

@@ -52,7 +52,7 @@ gtk4-broadwayd :5
 Then point your web browser at <literal>http://127.0.0.1:8085</literal>.
 Start your applications like this:
 <programlisting>
-GDK_BACKEND=broadway BROADWAY_DISPLAY=:5 gtk3-demo
+GDK_BACKEND=broadway BROADWAY_DISPLAY=:5 gtk4-demo
 </programlisting>
 
 You can add password protection for your session by creating a file in

docs/reference/gtk/gtk4-docs.xml

@@ -99,6 +99,15 @@
       <xi:include href="xml/gtklevelbar.xml" />
       <xi:include href="xml/gtkstatusbar.xml" />
       <xi:include href="xml/gtkaccellabel.xml" />
+      <xi:include href="xml/gtkcalendar.xml" />
+    </chapter>
+
+    <chapter id="MediaSupport">
+      <title>Media Support</title>
+      <xi:include href="xml/gtkvideo.xml" />
+      <xi:include href="xml/gtkmediacontrols.xml" />
+      <xi:include href="xml/gtkmediastream.xml" />
+      <xi:include href="xml/gtkmediafile.xml" />
     </chapter>
 
     <chapter id="ButtonWidgets">
@@ -210,6 +219,12 @@
       <xi:include href="xml/gtkfontchooserdialog.xml" />
     </chapter>
 
+    <chapter id="DrawingWidgets">
+      <title>Widgets for custom drawing</title>
+      <xi:include href="xml/gtkdrawingarea.xml" />
+      <xi:include href="xml/gtkglarea.xml" />
+    </chapter>
+
     <chapter id="Ornaments">
       <title>Ornaments</title>
       <xi:include href="xml/gtkframe.xml" />
@@ -221,6 +236,7 @@
       <xi:include href="xml/gtkscrollbar.xml" />
       <xi:include href="xml/gtkscrolledwindow.xml" />
       <xi:include href="xml/gtkscrollable.xml" />
+      <xi:include href="xml/gtkviewport.xml" />
     </chapter>
 
     <chapter id="Printing">
@@ -247,16 +263,12 @@
     <chapter id="MiscObjects">
       <title>Miscellaneous</title>
       <xi:include href="xml/gtkadjustment.xml" />
-      <xi:include href="xml/gtkcalendar.xml" />
-      <xi:include href="xml/gtkdrawingarea.xml" />
-      <xi:include href="xml/gtkglarea.xml" />
       <xi:include href="xml/gtkimcontextsimple.xml" />
       <xi:include href="xml/gtkimmulticontext.xml" />
       <xi:include href="xml/gtksizegroup.xml" />
       <xi:include href="xml/gtktooltip.xml" />
-      <xi:include href="xml/gtkviewport.xml" />
-      <xi:include href="xml/gtkaccessible.xml" />
       <xi:include href="xml/gtksnapshot.xml" />
+      <xi:include href="xml/gtkwidgetpaintable.xml" />
     </chapter>
 
     <chapter id="AbstractObjects">
@@ -268,6 +280,7 @@
       <xi:include href="xml/gtkrange.xml" />
       <xi:include href="xml/gtkimcontext.xml" />
       <xi:include href="xml/gtknativedialog.xml" />
+      <xi:include href="xml/gtkaccessible.xml" />
     </chapter>
 
     <chapter id="RecentDocuments">
@@ -297,6 +310,7 @@
       <xi:include href="xml/gtkgestureswipe.xml" />
       <xi:include href="xml/gtkgesturerotate.xml" />
       <xi:include href="xml/gtkgesturezoom.xml" />
+      <xi:include href="xml/gtkgesturestylus.xml" />
       <xi:include href="xml/gtkpadcontroller.xml" />
     </chapter>
 

docs/reference/gtk/gtk4-sections.txt

@@ -1270,8 +1270,6 @@ gtk_fixed_get_type
 GtkFontButton
 gtk_font_button_new
 gtk_font_button_new_with_font
-gtk_font_button_set_font_name
-gtk_font_button_get_font_name
 gtk_font_button_set_use_font
 gtk_font_button_get_use_font
 gtk_font_button_set_use_size
@@ -1302,7 +1300,7 @@ gtk_font_chooser_set_font
 gtk_font_chooser_get_font_desc
 gtk_font_chooser_set_font_desc
 gtk_font_chooser_get_font_features
-gtk_font_chooser_get_font_language
+gtk_font_chooser_set_language
 gtk_font_chooser_get_preview_text
 gtk_font_chooser_set_preview_text
 gtk_font_chooser_get_show_preview_entry
@@ -1483,24 +1481,24 @@ GtkIconViewPrivate
 <TITLE>GtkImage</TITLE>
 GtkImage
 GtkImageType
-gtk_image_get_texture
-gtk_image_get_icon_name
-gtk_image_get_gicon
-gtk_image_get_storage_type
+gtk_image_new
 gtk_image_new_from_file
+gtk_image_new_from_resource
 gtk_image_new_from_pixbuf
+gtk_image_new_from_paintable
 gtk_image_new_from_icon_name
 gtk_image_new_from_gicon
-gtk_image_new_from_resource
-gtk_image_new_from_texture
+gtk_image_clear
 gtk_image_set_from_file
+gtk_image_set_from_resource
 gtk_image_set_from_pixbuf
+gtk_image_set_from_paintable
 gtk_image_set_from_icon_name
 gtk_image_set_from_gicon
-gtk_image_set_from_resource
-gtk_image_set_from_texture
-gtk_image_clear
-gtk_image_new
+gtk_image_get_storage_type
+gtk_image_get_paintable
+gtk_image_get_icon_name
+gtk_image_get_gicon
 gtk_image_set_pixel_size
 gtk_image_get_pixel_size
 gtk_image_set_icon_size
@@ -1923,8 +1921,8 @@ gtk_info_bar_set_message_type
 gtk_info_bar_get_message_type
 gtk_info_bar_get_action_area
 gtk_info_bar_get_content_area
-gtk_info_bar_get_show_title_buttons
-gtk_info_bar_set_show_title_buttons
+gtk_info_bar_get_show_close_button
+gtk_info_bar_set_show_close_button
 gtk_info_bar_get_revealed
 gtk_info_bar_set_revealed
 
@@ -2397,6 +2395,8 @@ gtk_search_bar_set_search_mode
 gtk_search_bar_get_show_close_button
 gtk_search_bar_set_show_close_button
 gtk_search_bar_handle_event
+gtk_search_bar_set_key_capture_widget
+gtk_search_bar_get_key_capture_widget
 <SUBSECTION Standard>
 GTK_TYPE_SEARCH_BAR
 GTK_SEARCH_BAR
@@ -2414,6 +2414,8 @@ gtk_search_bar_get_type
 GtkSearchEntry
 gtk_search_entry_new
 gtk_search_entry_handle_event
+gtk_search_entry_set_key_capture_widget
+gtk_search_entry_get_key_capture_widget
 <SUBSECTION Standard>
 GTK_TYPE_SEARCH_ENTRY
 GTK_SEARCH_ENTRY
@@ -4168,15 +4170,10 @@ gtk_volume_button_get_type
 <TITLE>GtkSnapshot</TITLE>
 GtkSnapshot
 gtk_snapshot_new
-gtk_snapshot_ref
-gtk_snapshot_unref
 gtk_snapshot_to_node
 gtk_snapshot_to_paintable
 gtk_snapshot_free_to_node
 gtk_snapshot_free_to_paintable
-gtk_snapshot_get_renderer
-gtk_snapshot_get_record_names
-gtk_snapshot_push
 gtk_snapshot_push_transform
 gtk_snapshot_push_opacity
 gtk_snapshot_push_color_matrix
@@ -4193,7 +4190,6 @@ gtk_snapshot_append_cairo
 gtk_snapshot_append_texture
 gtk_snapshot_append_color
 gtk_snapshot_append_layout
-gtk_snapshot_clips_rect
 gtk_snapshot_render_background
 gtk_snapshot_render_frame
 gtk_snapshot_render_focus
@@ -4201,6 +4197,24 @@ gtk_snapshot_render_layout
 gtk_snapshot_render_insertion_cursor
 </SECTION>
 
+<SECTION>
+<FILE>gtkwidgetpaintable</FILE>
+<TITLE>GtkWidgetPaintable</TITLE>
+gtk_widget_paintable_new
+gtk_widget_paintable_get_widget
+gtk_widget_paintable_set_widget
+
+<SUBSECTION Standard>
+GTK_WIDGET_PAINTABLE
+GTK_IS_WIDGET_PAINTABLE
+GTK_TYPE_WIDGET_PAINTABLE
+GTK_WIDGET_PAINTABLE_CLASS
+GTK_IS_WIDGET_PAINTABLE_CLASS
+GTK_WIDGET_PAINTABLE_GET_CLASS
+<SUBSECTION Private>
+gtk_widget_paintable_get_type
+</SECTION>
+
 <SECTION>
 <FILE>gtkwidget</FILE>
 <TITLE>GtkWidget</TITLE>
@@ -4220,7 +4234,6 @@ gtk_widget_map
 gtk_widget_unmap
 gtk_widget_realize
 gtk_widget_unrealize
-gtk_widget_draw
 gtk_widget_queue_draw
 gtk_widget_queue_resize
 gtk_widget_queue_resize_no_redraw
@@ -4252,6 +4265,8 @@ gtk_widget_get_toplevel
 gtk_widget_get_ancestor
 gtk_widget_is_ancestor
 gtk_widget_translate_coordinates
+gtk_widget_add_controller
+gtk_widget_remove_controller
 gtk_widget_set_direction
 GtkTextDirection
 gtk_widget_get_direction
@@ -4265,8 +4280,6 @@ gtk_widget_get_font_options
 gtk_widget_set_font_map
 gtk_widget_get_font_map
 gtk_widget_create_pango_layout
-gtk_widget_queue_draw_area
-gtk_widget_queue_draw_region
 gtk_widget_get_cursor
 gtk_widget_set_cursor
 gtk_widget_set_cursor_from_name
@@ -4312,7 +4325,7 @@ gtk_widget_get_allocated_baseline
 gtk_widget_get_allocated_size
 gtk_widget_get_width
 gtk_widget_get_height
-gtk_widget_get_clip
+gtk_widget_compute_bounds
 gtk_widget_contains
 gtk_widget_pick
 gtk_widget_get_can_default
@@ -4321,6 +4334,7 @@ gtk_widget_get_can_focus
 gtk_widget_set_can_focus
 gtk_widget_get_focus_on_click
 gtk_widget_set_focus_on_click
+gtk_widget_set_focus_child
 gtk_widget_get_has_surface
 gtk_widget_set_has_surface
 gtk_widget_get_sensitive
@@ -4342,7 +4356,6 @@ gtk_widget_set_receives_default
 gtk_widget_get_receives_default
 gtk_widget_set_support_multidevice
 gtk_widget_get_support_multidevice
-gtk_widget_set_realized
 gtk_widget_get_realized
 gtk_widget_get_mapped
 gtk_widget_device_is_shadowed
@@ -4873,7 +4886,6 @@ gtk_render_line
 gtk_render_option
 gtk_render_slider
 gtk_render_activity
-gtk_render_icon_surface
 gtk_render_icon
 gtk_render_insertion_cursor
 
@@ -5260,6 +5272,7 @@ gtk_printer_request_details
 gtk_printer_get_capabilities
 gtk_printer_get_default_page_size
 gtk_printer_get_hard_margins
+gtk_printer_get_hard_margins_for_paper_size
 GtkPrinterFunc
 gtk_enumerate_printers
 
@@ -6458,6 +6471,24 @@ GTK_EVENT_CONTROLLER_MOTION_GET_CLASS
 gtk_event_controller_motion_get_type
 </SECTION>
 
+<SECTION>
+<FILE>gtkeventcontrollerkey</FILE>
+<TITLE>GtkEventControlerKey</TITLE>
+GtkEventControllerKey
+gtk_event_controller_key_new
+
+<SUBSECTION Standard>
+GTK_TYPE_EVENT_CONTROLLER_KEY
+GTK_EVENT_CONTROLLER_KEY
+GTK_EVENT_CONTROLLER_KEY_CLASS
+GTK_IS_EVENT_CONTROLLER_KEY
+GTK_IS_EVENT_CONTROLLER_KEY_CLASS
+GTK_EVENT_CONTROLLER_KEY_GET_CLASS
+
+<SUBSECTION Private>
+gtk_event_controller_key_get_type
+</SECTION>
+
 <SECTION>
 <FILE>gtkgesturedrag</FILE>
 <TITLE>GtkGestureDrag</TITLE>
@@ -6616,15 +6647,39 @@ GTK_PAD_CONTROLLER_GET_CLASS
 gtk_pad_controller_get_type
 </SECTION>
 
+<SECTION>
+<FILE>gtkgesturestylus</FILE>
+<TITLE>GtkGestureStylus</TITLE>
+GtkGestureStylus
+
+gtk_gesture_stylus_new
+gtk_gesture_stylus_get_axis
+gtk_gesture_stylus_get_axes
+gtk_gesture_stylus_get_backlog
+gtk_gesture_stylus_get_device_tool
+
+<SUBSECTION Standard>
+GTK_TYPE_GESTURE_STYLUS
+GTK_GESTURE_STYLUS
+GTK_GESTURE_STYLUS_CLASS
+GTK_IS_GESTURE_STYLUS
+GTK_IS_GESTURE_STYLUS_CLASS
+GTK_GESTURE_STYLUS_GET_CLASS
+GtkGestureStylusClass
+
+<SUBSECTION Private>
+gtk_gesture_stylus_get_type
+</SECTION>
+
 <SECTION>
 <FILE>gtkstacksidebar</FILE>
 GtkStackSidebar
-GtkStackSidebarClass
 gtk_stack_sidebar_new
 gtk_stack_sidebar_set_stack
 gtk_stack_sidebar_get_stack
 
 <SUBSECTION Standard>
+GtkStackSidebarClass
 GTK_TYPE_STACK_SIDEBAR
 GTK_STACK_SIDEBAR
 GTK_STACK_SIDEBAR_CLASS
@@ -6649,8 +6704,6 @@ gtk_gl_area_attach_buffers
 gtk_gl_area_set_error
 gtk_gl_area_get_error
 <SUBSECTION>
-gtk_gl_area_set_has_alpha
-gtk_gl_area_get_has_alpha
 gtk_gl_area_set_has_depth_buffer
 gtk_gl_area_get_has_depth_buffer
 gtk_gl_area_set_has_stencil_buffer
@@ -6757,3 +6810,102 @@ GTK_SHORTCUT_LABEL_GET_CLASS
 GTK_IS_SHORTCUT_LABEL
 GTK_IS_SHORTCUT_LABEL_CLASS
 </SECTION>
+
+<SECTION>
+<FILE>gtkvideo</FILE>
+GtkVideo
+gtk_video_new
+gtk_video_new_for_media_stream
+gtk_video_new_for_file
+gtk_video_new_for_filename
+gtk_video_new_for_resource
+gtk_video_get_media_stream
+gtk_video_set_media_stream
+gtk_video_get_file
+gtk_video_set_file
+gtk_video_set_filename
+gtk_video_set_resource
+gtk_video_get_autoplay
+gtk_video_set_autoplay
+gtk_video_get_loop
+gtk_video_set_loop
+
+<SUBSECTION Private>
+gtk_video_get_type
+</SECTION>
+
+<SECTION>
+<FILE>gtkmediacontrols</FILE>
+GtkMediaControls
+gtk_media_controls_new
+gtk_media_controls_get_media_stream
+gtk_media_controls_set_media_stream
+
+<SUBSECTION Private>
+gtk_media_controls_get_type
+</SECTION>
+
+<SECTION>
+<FILE>gtkmediafile</FILE>
+GtkMediaFile
+gtk_media_file_new
+gtk_media_file_new_for_filename
+gtk_media_file_new_for_resource
+gtk_media_file_new_for_file
+gtk_media_file_new_for_input_stream
+gtk_media_file_clear
+gtk_media_file_set_filename
+gtk_media_file_set_resource
+gtk_media_file_set_file
+gtk_media_file_get_file
+gtk_media_file_set_input_stream
+gtk_media_file_get_input_stream
+
+<SUBSECTION Private>
+GTK_TYPE_MEDIA_FILE
+gtk_media_file_get_type
+</SECTION>
+
+<SECTION>
+<FILE>gtkmediastream</FILE>
+GtkMediaStream
+GtkMediaStreamClass
+
+gtk_media_stream_is_prepared
+gtk_media_stream_get_error
+gtk_media_stream_has_audio
+gtk_media_stream_has_video
+gtk_media_stream_play
+gtk_media_stream_pause
+gtk_media_stream_get_playing
+gtk_media_stream_set_playing
+gtk_media_stream_get_ended
+gtk_media_stream_get_timestamp
+gtk_media_stream_get_duration
+gtk_media_stream_is_seekable
+gtk_media_stream_is_seeking
+gtk_media_stream_seek
+gtk_media_stream_get_loop
+gtk_media_stream_set_loop
+gtk_media_stream_get_muted
+gtk_media_stream_set_muted
+gtk_media_stream_get_volume
+gtk_media_stream_set_volume
+gtk_media_stream_realize
+gtk_media_stream_unrealize
+
+<SUBSECTION>
+gtk_media_stream_prepared
+gtk_media_stream_unprepared
+gtk_media_stream_update
+gtk_media_stream_ended
+gtk_media_stream_seek_success
+gtk_media_stream_seek_failed
+gtk_media_stream_gerror
+gtk_media_stream_error
+gtk_media_stream_error_valist
+
+<SUBSECTION Private>
+GTK_TYPE_MEDIA_STREAM
+gtk_media_stream_get_type
+</SECTION>

docs/reference/gtk/gtk4.types.in

@@ -53,8 +53,9 @@ gtk_entry_buffer_get_type
 gtk_entry_completion_get_type
 gtk_entry_get_type
 gtk_event_controller_get_type
-gtk_event_controller_scroll_get_type
+gtk_event_controller_key_get_type
 gtk_event_controller_motion_get_type
+gtk_event_controller_scroll_get_type
 gtk_expander_get_type
 gtk_file_chooser_button_get_type
 gtk_file_chooser_dialog_get_type
@@ -76,6 +77,7 @@ gtk_gesture_multi_press_get_type
 gtk_gesture_pan_get_type
 gtk_gesture_rotate_get_type
 gtk_gesture_single_get_type
+gtk_gesture_stylus_get_type
 gtk_gesture_swipe_get_type
 gtk_gesture_zoom_get_type
 gtk_gl_area_get_type
@@ -96,6 +98,9 @@ gtk_list_store_get_type
 gtk_list_box_get_type
 gtk_list_box_row_get_type
 gtk_lock_button_get_type
+gtk_media_controls_get_type
+gtk_media_file_get_type
+gtk_media_stream_get_type
 gtk_menu_bar_get_type
 gtk_menu_button_get_type
 gtk_menu_get_type
@@ -179,6 +184,7 @@ gtk_tree_sortable_get_type
 gtk_tree_store_get_type
 gtk_tree_view_column_get_type
 gtk_tree_view_get_type
+gtk_video_get_type
 gtk_viewport_get_type
 gtk_volume_button_get_type
 gtk_widget_get_type

docs/reference/gtk/meson.build

@@ -1,4 +1,195 @@
 private_headers = [
+  'gdkpixbufutilsprivate.h',
+  'gtkaccelgroupprivate.h',
+  'gtkaccelmapprivate.h',
+  'gtkactionhelperprivate.h',
+  'gtkactionmuxerprivate.h',
+  'gtkadjustmentprivate.h',
+  'gtkallocatedbitmaskprivate.h',
+  'gtkappchooserprivate.h',
+  'gtkapplicationaccelsprivate.h',
+  'gtkapplicationprivate.h',
+  'gtkbindingsprivate.h',
+  'gtkbitmaskprivate.h',
+  'gtkboxprivate.h',
+  'gtkbuilderprivate.h',
+  'gtkbuttonprivate.h',
+  'gtkcellareaboxcontextprivate.h',
+  'gtkcheckbuttonprivate.h',
+  'gtkcheckmenuitemprivate.h',
+  'gtkcolorchooserprivate.h',
+  'gtkcoloreditorprivate.h',
+  'gtkcolorplaneprivate.h',
+  'gtkcolorscaleprivate.h',
+  'gtkcolorswatchprivate.h',
+  'gtkcomboboxprivate.h',
+  'gtkcontainerprivate.h',
+  'gtkcssanimatedstyleprivate.h',
+  'gtkcssanimationprivate.h',
+  'gtkcssarrayvalueprivate.h',
+  'gtkcssbgsizevalueprivate.h',
+  'gtkcssbordervalueprivate.h',
+  'gtkcsscalcvalueprivate.h',
+  'gtkcsscolorvalueprivate.h',
+  'gtkcsscornervalueprivate.h',
+  'gtkcssdimensionvalueprivate.h',
+  'gtkcssdynamicprivate.h',
+  'gtkcsseasevalueprivate.h',
+  'gtkcssenumvalueprivate.h',
+  'gtkcssfiltervalueprivate.h',
+  'gtkcssfontfeaturesvalueprivate.h',
+  'gtkcssfontvariationsvalueprivate.h',
+  'gtkcssiconthemevalueprivate.h',
+  'gtkcssimagebuiltinprivate.h',
+  'gtkcssimagecrossfadeprivate.h',
+  'gtkcssimagefallbackprivate.h',
+  'gtkcssimageiconthemeprivate.h',
+  'gtkcssimageinvalidprivate.h',
+  'gtkcssimagelinearprivate.h',
+  'gtkcssimagepaintableprivate.h',
+  'gtkcssimageprivate.h',
+  'gtkcssimageradialprivate.h',
+  'gtkcssimagerecolorprivate.h',
+  'gtkcssimagescaledprivate.h',
+  'gtkcssimageurlprivate.h',
+  'gtkcssimagevalueprivate.h',
+  'gtkcssimagewin32private.h',
+  'gtkcssinheritvalueprivate.h',
+  'gtkcssinitialvalueprivate.h',
+  'gtkcsskeyframesprivate.h',
+  'gtkcsslookupprivate.h',
+  'gtkcssmatcherprivate.h',
+  'gtkcssnodedeclarationprivate.h',
+  'gtkcssnodeprivate.h',
+  'gtkcssnodestylecacheprivate.h',
+  'gtkcssnumbervalueprivate.h',
+  'gtkcsspalettevalueprivate.h',
+  'gtkcssparserprivate.h',
+  'gtkcsspathnodeprivate.h',
+  'gtkcsspositionvalueprivate.h',
+  'gtkcssproviderprivate.h',
+  'gtkcssrepeatvalueprivate.h',
+  'gtkcssrgbavalueprivate.h',
+  'gtkcsssectionprivate.h',
+  'gtkcssselectorprivate.h',
+  'gtkcssshadowsvalueprivate.h',
+  'gtkcssshadowvalueprivate.h',
+  'gtkcssshorthandpropertyprivate.h',
+  'gtkcssstaticstyleprivate.h',
+  'gtkcssstringvalueprivate.h',
+  'gtkcssstylechangeprivate.h',
+  'gtkcssstyleprivate.h',
+  'gtkcssstylepropertyprivate.h',
+  'gtkcsstransformvalueprivate.h',
+  'gtkcsstransientnodeprivate.h',
+  'gtkcsstransitionprivate.h',
+  'gtkcsstypesprivate.h',
+  'gtkcssunsetvalueprivate.h',
+  'gtkcssvalueprivate.h',
+  'gtkcsswidgetnodeprivate.h',
+  'gtkcsswin32sizevalueprivate.h',
+  'gtkdialogprivate.h',
+  'gtkdndprivate.h',
+  'gtkentryprivate.h',
+  'gtkeventcontrollerlegacyprivate.h',
+  'gtkeventcontrollerprivate.h',
+  'gtkfilechoosererrorstackprivate.h',
+  'gtkfilechoosernativeprivate.h',
+  'gtkfilechooserprivate.h',
+  'gtkfilechooserwidgetprivate.h',
+  'gtkfilefilterprivate.h',
+  'gtkfontchooserprivate.h',
+  'gtkfontchooserwidgetprivate.h',
+  'gtkgesturedragprivate.h',
+  'gtkgesturelongpressprivate.h',
+  'gtkgesturemultipressprivate.h',
+  'gtkgesturepanprivate.h',
+  'gtkgestureprivate.h',
+  'gtkgesturerotateprivate.h',
+  'gtkgesturesingleprivate.h',
+  'gtkgesturestylusprivate.h',
+  'gtkgestureswipeprivate.h',
+  'gtkgesturezoomprivate.h',
+  'gtkgizmoprivate.h',
+  'gtkheaderbarprivate.h',
+  'gtkhslaprivate.h',
+  'gtkiconcacheprivate.h',
+  'gtkiconcachevalidatorprivate.h',
+  'gtkiconhelperprivate.h',
+  'gtkiconprivate.h',
+  'gtkiconthemeprivate.h',
+  'gtkiconviewprivate.h',
+  'gtkimagedefinitionprivate.h',
+  'gtkimageprivate.h',
+  'gtkimcontextsimpleprivate.h',
+  'gtkimmoduleprivate.h',
+  'gtkkineticscrollingprivate.h',
+  'gtklabelprivate.h',
+  'gtklockbuttonprivate.h',
+  'gtkmagnifierprivate.h',
+  'gtkmediafileprivate.h',
+  'gtkmenubuttonprivate.h',
+  'gtkmenuitemprivate.h',
+  'gtkmenuprivate.h',
+  'gtkmenushellprivate.h',
+  'gtkmodulesprivate.h',
+  'gtkmountoperationprivate.h',
+  'gtknativedialogprivate.h',
+  'gtknomediafileprivate.h',
+  'gtkorientableprivate.h',
+  'gtkplacessidebarprivate.h',
+  'gtkplacesviewprivate.h',
+  'gtkplacesviewrowprivate.h',
+  'gtkpointerfocusprivate.h',
+  'gtkpopoverprivate.h',
+  'gtkprinter-private.h',
+  'gtkprintoperation-private.h',
+  'gtkprivate.h',
+  'gtkprogresstrackerprivate.h',
+  'gtkrangeprivate.h',
+  'gtkrbtreeprivate.h',
+  'gtkrenderbackgroundprivate.h',
+  'gtkrenderborderprivate.h',
+  'gtkrendericonprivate.h',
+  'gtkrendernodepaintableprivate.h',
+  'gtkroundedboxprivate.h',
+  'gtkscalerprivate.h',
+  'gtksearchentryprivate.h',
+  'gtkselectionprivate.h',
+  'gtksettingsprivate.h',
+  'gtkshortcutsshortcutprivate.h',
+  'gtkshortcutswindowprivate.h',
+  'gtksidebarrowprivate.h',
+  'gtksizegroup-private.h',
+  'gtksizerequestcacheprivate.h',
+  'gtksnapshotprivate.h',
+  'gtkstyleanimationprivate.h',
+  'gtkstylecascadeprivate.h',
+  'gtkstylecontextprivate.h',
+  'gtkstylepropertyprivate.h',
+  'gtkstyleproviderprivate.h',
+  'gtktextbufferprivate.h',
+  'gtktextchildprivate.h',
+  'gtktextdisplayprivate.h',
+  'gtktexthandleprivate.h',
+  'gtktextiterprivate.h',
+  'gtktextlayoutprivate.h',
+  'gtktextmarkprivate.h',
+  'gtktexttagprivate.h',
+  'gtktextviewprivate.h',
+  'gtktogglebuttonprivate.h',
+  'gtktoolbarprivate.h',
+  'gtktooltipprivate.h',
+  'gtktooltipwindowprivate.h',
+  'gtktreeprivate.h',
+  'gtkutilsprivate.h',
+  'gtkwidgetpaintableprivate.h',
+  'gtkwidgetpathprivate.h',
+  'gtkwidgetprivate.h',
+  'gtkwin32drawprivate.h',
+  'gtkwin32themeprivate.h',
+  'gtkwindowprivate.h',
+  'gtk-text-input-client-protocol.h',
 ]
 
 images = [
@@ -207,17 +398,18 @@ else
   types_conf.set('DISABLE_ON_QUARTZ', '')
 endif
 
-configure_file(input: 'gtk4.types.in', output: 'gtk4.types', configuration: types_conf)
-
 gnome.gtkdoc('gtk4',
              mode: 'none',
              main_xml: 'gtk4-docs.xml',
              src_dir: [
-	       join_paths(meson.source_root(), 'gtk'),
-	       join_paths(meson.build_root(), 'gtk'),
+               gtkinc,
 	     ],
              dependencies: libgtk_dep,
-             gobject_typesfile: 'gtk4.types',
+             gobject_typesfile: configure_file(
+               input: 'gtk4.types.in',
+               output: 'gtk4.types',
+               configuration: types_conf,
+             ),
              scan_args: [
                '--ignore-decorators=_GDK_EXTERN|G_GNUC_WARN_UNUSED_RESULT',
                '--ignore-headers=' + ' '.join(private_headers),

docs/reference/gtk/migrating-3to4.xml

@@ -217,9 +217,12 @@
     </section>
 
     <section>
-      <title>Adapt to GdkSurface API changes</title>
+      <title>Adapt to GdkWindow API changes</title>
       <para>
-        The gdk_surface_new() function has been replaced by a number of more
+        GdkWindow has been renamed to GdkSurface.
+      </para>
+      <para>
+        The gdk_window_new() function has been replaced by a number of more
         specialized constructors: gdk_surface_new_toplevel(), gdk_surface_new_popup(),
         gdk_surface_new_temp(), gdk_surface_new_child(), gdk_surface_new_input(),
         gdk_wayland_surface_new_subsurface(). Use the appropriate ones to create
@@ -230,7 +233,7 @@
         complicating the code and could not be supported across backends.
       </para>
       <para>
-        gdk_surface_reparent() is no longer available.
+        gdk_window_reparent() is no longer available.
       </para>
     </section>
 
@@ -416,8 +419,8 @@
       <title>GdkPixbuf is deemphasized</title>
       <para>
         A number of #GdkPixbuf-based APIs have been removed. The available replacements
-        are either using #GIcon, cairo_surface_t or the newly introduced #GdkTexture class
-        instead.
+        are either using #GIcon, or the newly introduced #GdkTexture or #GdkPaintable
+        classes instead.
       </para>
       <para>
         If you are dealing with pixbufs, you can use gdk_texture_new_for_pixbuf()
@@ -426,12 +429,37 @@
     </section>
 
     <section>
-      <title>GtkWidget event signals are deemphasized</title>
+      <title>GtkWidget event signals are removed</title>
       <para>
         Event controllers and #GtkGestures have already been introduced in GTK+ 3 to handle
         input for many cases. In GTK+ 4, even more are available, such as #GtkEventControllerScroll
         and GtkEventControllerMotion, and the traditional widget signals for handling input,
-        such as #GtkWidget::motion-event or #GtkWidget::event have been deprecated.
+        such as #GtkWidget::motion-event or #GtkWidget::event have been removed.
+      </para>
+    </section>
+
+    <section>
+      <title>Invalidation handling has changed</title>
+      <para>
+        Only gtk_widget_queue_draw() is left to mark a widget as needing redraw.
+        Variations like gtk_widget_queue_draw_rectangle() or gtk_widget_queue_draw_region()
+        are no longer available.
+      </para>
+    </section>
+
+    <section>
+      <title>Stop using GtkWidget::draw</title>
+      <para>
+        The #GtkWidget::draw signal has been removed. Widgets need to implement the
+        #GtkWidget::snapshot function now. Connecting draw signal handlers is no longer possible.
+      </para>
+    </section>
+
+    <section>
+      <title>Window content observation has changed</title>
+      <para>
+        Observing widget contents and widget size is now done by using the
+        #GtkWidgetPaintable object instead of connecting to widget signals.
       </para>
     </section>
 
@@ -475,6 +503,7 @@
         #GtkCellRendererPixbuf:icon-size.
       </para>
     </section>
+
   </section>
 
 </chapter>

docs/reference/gtk/running.sgml

@@ -162,10 +162,10 @@ additional environment variables.
     Linux and Unix, and the ';' character on Windows.
   </para>
   <warning>
-    Note that this environment variable is read by GTK+ 2.x too, which
-    makes it unsuitable for setting it system-wide (or session-wide),
-    since doing so will cause either GTK+ 2.x applications or GTK+ 3
-    applications to see incompatible modules.
+    Note that this environment variable is read by GTK+ 2.x and GTK+ 3.x too,
+    which makes it unsuitable for setting it system-wide (or session-wide),
+    since doing so will cause applications using different GTK+ versions
+    to see incompatible modules.
   </warning>
 </formalpara>
 
@@ -309,7 +309,7 @@ nevertheless.
       <listitem><para>Use a legacy OpenGL context</para></listitem>
     </varlistentry>
     <varlistentry>
-      <term>gl-legacy</term>
+      <term>gl-gles</term>
       <listitem><para>Use a GLES OpenGL context</para></listitem>
     </varlistentry>
     <varlistentry>
@@ -320,11 +320,6 @@ nevertheless.
       <term>vulkan-validate</term>
       <listitem><para>Load the Vulkan validation layer, if available</para></listitem>
     </varlistentry>
-    <varlistentry>
-      <term>cairo-image</term>
-      <listitem><para>Use image surfaces for cairo rendering. This essentially
-         turns off all hardware acceleration with the cairo renderer</para></listitem>
-    </varlistentry>
   </variablelist>
   The special value <literal>all</literal> can be used to turn on all
   debug options. The special value <literal>help</literal> can be used
@@ -352,6 +347,14 @@ nevertheless.
       <term>opengl</term>
       <listitem><para>OpenGL renderer information</para></listitem>
     </varlistentry>
+    <varlistentry>
+      <term>shaders</term>
+      <listitem><para>Shaders</para></listitem>
+    </varlistentry>
+    <varlistentry>
+      <term>ssurface</term>
+      <listitem><para>Surfaces</para></listitem>
+    </varlistentry>
     <varlistentry>
       <term>vulkan</term>
       <listitem><para>Vulkan renderer information</para></listitem>
@@ -367,6 +370,10 @@ nevertheless.
   </variablelist>
   A number of options affect behavior instead of logging:
   <variablelist>
+    <varlistentry>
+      <term>diff</term>
+      <listitem><para>Show differences</para></listitem>
+    </varlistentry>
     <varlistentry>
       <term>geometry</term>
       <listitem><para>Show borders</para></listitem>
@@ -453,6 +460,44 @@ nevertheless.
   </para>
 </formalpara>
 
+<formalpara>
+  <title><envar>GSK_RENDERER</envar></title>
+
+  <para>
+    If set, selects the GSK renderer to use. The following renderers can
+    be selected, provided they are included in the GTK library you are using
+    and the GDK backend supports them:
+    <variablelist>
+
+      <varlistentry>
+        <term>help</term>
+        <listitem><para>Prints information about available options</para></listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term>broadway</term>
+        <listitem><para>Selects the Broadway-backend specific renderer</para></listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term>cairo</term>
+        <listitem><para>Selects the fallback Cairo renderer</para></listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term>gl</term>
+        <listitem><para>Selects the default OpenGL renderer</para></listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term>vulkan</term>
+        <listitem><para>Selects the Vulkan renderer</para></listitem>
+      </varlistentry>
+
+    </variablelist>
+  </para>
+</formalpara>
+
 <formalpara>
   <title><envar>GTK_CSD</envar></title>
 

examples/application1/Makefile.example

@@ -1,7 +1,7 @@
 CC ?= gcc
 PKGCONFIG = $(shell which pkg-config)
-CFLAGS = $(shell $(PKGCONFIG) --cflags gtk+-3.0)
-LIBS = $(shell $(PKGCONFIG) --libs gtk+-3.0)
+CFLAGS = $(shell $(PKGCONFIG) --cflags gtk+-4.0)
+LIBS = $(shell $(PKGCONFIG) --libs gtk+-4.0)
 
 SRC = main.c exampleapp.c exampleappwin.c
 

examples/application10/Makefile.example

@@ -1,7 +1,7 @@
 CC ?= gcc
 PKGCONFIG = $(shell which pkg-config)
-CFLAGS = $(shell $(PKGCONFIG) --cflags gtk+-3.0)
-LIBS = $(shell $(PKGCONFIG) --libs gtk+-3.0)
+CFLAGS = $(shell $(PKGCONFIG) --cflags gtk+-4.0)
+LIBS = $(shell $(PKGCONFIG) --libs gtk+-4.0)
 GLIB_COMPILE_RESOURCES = $(shell $(PKGCONFIG) --variable=glib_compile_resources gio-2.0)
 GLIB_COMPILE_SCHEMAS = $(shell $(PKGCONFIG) --variable=glib_compile_schemas gio-2.0)
 

examples/application10/exampleappprefs.c

@@ -7,43 +7,36 @@
 struct _ExampleAppPrefs
 {
   GtkDialog parent;
-};
 
-typedef struct _ExampleAppPrefsPrivate ExampleAppPrefsPrivate;
-
-struct _ExampleAppPrefsPrivate
-{
   GSettings *settings;
   GtkWidget *font;
   GtkWidget *transition;
 };
 
-G_DEFINE_TYPE_WITH_PRIVATE(ExampleAppPrefs, example_app_prefs, GTK_TYPE_DIALOG)
+G_DEFINE_TYPE (ExampleAppPrefs, example_app_prefs, GTK_TYPE_DIALOG)
 
 static void
 example_app_prefs_init (ExampleAppPrefs *prefs)
 {
-  ExampleAppPrefsPrivate *priv;
-
-  priv = example_app_prefs_get_instance_private (prefs);
   gtk_widget_init_template (GTK_WIDGET (prefs));
-  priv->settings = g_settings_new ("org.gtk.exampleapp");
+  prefs->settings = g_settings_new ("org.gtk.exampleapp");
 
-  g_settings_bind (priv->settings, "font",
-                   priv->font, "font",
+  g_settings_bind (prefs->settings, "font",
+                   prefs->font, "font",
                    G_SETTINGS_BIND_DEFAULT);
-  g_settings_bind (priv->settings, "transition",
-                   priv->transition, "active-id",
+  g_settings_bind (prefs->settings, "transition",
+                   prefs->transition, "active-id",
                    G_SETTINGS_BIND_DEFAULT);
 }
 
 static void
 example_app_prefs_dispose (GObject *object)
 {
-  ExampleAppPrefsPrivate *priv;
+  ExampleAppPrefs *prefs;
 
-  priv = example_app_prefs_get_instance_private (EXAMPLE_APP_PREFS (object));
-  g_clear_object (&priv->settings);
+  prefs = EXAMPLE_APP_PREFS (object);
+
+  g_clear_object (&prefs->settings);
 
   G_OBJECT_CLASS (example_app_prefs_parent_class)->dispose (object);
 }
@@ -55,8 +48,8 @@ example_app_prefs_class_init (ExampleAppPrefsClass *class)
 
   gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
                                                "/org/gtk/exampleapp/prefs.ui");
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppPrefs, font);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppPrefs, transition);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppPrefs, font);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppPrefs, transition);
 }
 
 ExampleAppPrefs *

examples/application10/exampleappwin.c

@@ -6,12 +6,7 @@
 struct _ExampleAppWindow
 {
   GtkApplicationWindow parent;
-};
 
-typedef struct _ExampleAppWindowPrivate ExampleAppWindowPrivate;
-
-struct _ExampleAppWindowPrivate
-{
   GSettings *settings;
   GtkWidget *stack;
   GtkWidget *search;
@@ -24,13 +19,12 @@ struct _ExampleAppWindowPrivate
   GtkWidget *lines_label;
 };
 
-G_DEFINE_TYPE_WITH_PRIVATE(ExampleAppWindow, example_app_window, GTK_TYPE_APPLICATION_WINDOW);
+G_DEFINE_TYPE (ExampleAppWindow, example_app_window, GTK_TYPE_APPLICATION_WINDOW)
 
 static void
-search_text_changed (GtkEntry *entry)
+search_text_changed (GtkEntry         *entry,
+                     ExampleAppWindow *win)
 {
-  ExampleAppWindow *win;
-  ExampleAppWindowPrivate *priv;
   const gchar *text;
   GtkWidget *tab;
   GtkWidget *view;
@@ -42,10 +36,7 @@ search_text_changed (GtkEntry *entry)
   if (text[0] == '\0')
     return;
 
-  win = EXAMPLE_APP_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (entry)));
-  priv = example_app_window_get_instance_private (win);
-
-  tab = gtk_stack_get_visible_child (GTK_STACK (priv->stack));
+  tab = gtk_stack_get_visible_child (GTK_STACK (win->stack));
   view = gtk_bin_get_child (GTK_BIN (tab));
   buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 
@@ -64,19 +55,15 @@ static void
 find_word (GtkButton        *button,
            ExampleAppWindow *win)
 {
-  ExampleAppWindowPrivate *priv;
   const gchar *word;
 
-  priv = example_app_window_get_instance_private (win);
-
   word = gtk_button_get_label (button);
-  gtk_entry_set_text (GTK_ENTRY (priv->searchentry), word);
+  gtk_entry_set_text (GTK_ENTRY (win->searchentry), word);
 }
 
 static void
 update_words (ExampleAppWindow *win)
 {
-  ExampleAppWindowPrivate *priv;
   GHashTable *strings;
   GHashTableIter iter;
   GtkWidget *tab, *view, *row;
@@ -85,9 +72,7 @@ update_words (ExampleAppWindow *win)
   GList *children, *l;
   gchar *word, *key;
 
-  priv = example_app_window_get_instance_private (win);
-
-  tab = gtk_stack_get_visible_child (GTK_STACK (priv->stack));
+  tab = gtk_stack_get_visible_child (GTK_STACK (win->stack));
 
   if (tab == NULL)
     return;
@@ -115,9 +100,9 @@ update_words (ExampleAppWindow *win)
     }
 
 done:
-  children = gtk_container_get_children (GTK_CONTAINER (priv->words));
+  children = gtk_container_get_children (GTK_CONTAINER (win->words));
   for (l = children; l; l = l->next)
-    gtk_container_remove (GTK_CONTAINER (priv->words), GTK_WIDGET (l->data));
+    gtk_container_remove (GTK_CONTAINER (win->words), GTK_WIDGET (l->data));
   g_list_free (children);
 
   g_hash_table_iter_init (&iter, strings);
@@ -126,8 +111,7 @@ done:
       row = gtk_button_new_with_label (key);
       g_signal_connect (row, "clicked",
                         G_CALLBACK (find_word), win);
-      gtk_widget_show (row);
-      gtk_container_add (GTK_CONTAINER (priv->words), row);
+      gtk_container_add (GTK_CONTAINER (win->words), row);
     }
 
   g_hash_table_unref (strings);
@@ -136,16 +120,12 @@ done:
 static void
 update_lines (ExampleAppWindow *win)
 {
-  ExampleAppWindowPrivate *priv;
   GtkWidget *tab, *view;
   GtkTextBuffer *buffer;
-  GtkTextIter iter;
   int count;
   gchar *lines;
 
-  priv = example_app_window_get_instance_private (win);
-
-  tab = gtk_stack_get_visible_child (GTK_STACK (priv->stack));
+  tab = gtk_stack_get_visible_child (GTK_STACK (win->stack));
 
   if (tab == NULL)
     return;
@@ -153,34 +133,21 @@ update_lines (ExampleAppWindow *win)
   view = gtk_bin_get_child (GTK_BIN (tab));
   buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 
-  count = 0;
-
-  gtk_text_buffer_get_start_iter (buffer, &iter);
-  while (!gtk_text_iter_is_end (&iter))
-    {
-      count++;
-      if (!gtk_text_iter_forward_line (&iter))
-        break;
-    }
-
+  count = gtk_text_buffer_get_line_count (buffer);
   lines = g_strdup_printf ("%d", count);
-  gtk_label_set_text (GTK_LABEL (priv->lines), lines);
+  gtk_label_set_text (GTK_LABEL (win->lines), lines);
   g_free (lines);
 }
 
 static void
-visible_child_changed (GObject    *stack,
-                       GParamSpec *pspec)
+visible_child_changed (GObject          *stack,
+                       GParamSpec       *pspec,
+                       ExampleAppWindow *win)
 {
-  ExampleAppWindow *win;
-  ExampleAppWindowPrivate *priv;
-
   if (gtk_widget_in_destruction (GTK_WIDGET (stack)))
     return;
 
-  win = EXAMPLE_APP_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (stack)));
-  priv = example_app_window_get_instance_private (win);
-  gtk_search_bar_set_search_mode (GTK_SEARCH_BAR (priv->searchbar), FALSE);
+  gtk_search_bar_set_search_mode (GTK_SEARCH_BAR (win->searchbar), FALSE);
   update_words (win);
   update_lines (win);
 }
@@ -196,45 +163,43 @@ words_changed (GObject          *sidebar,
 static void
 example_app_window_init (ExampleAppWindow *win)
 {
-  ExampleAppWindowPrivate *priv;
   GtkBuilder *builder;
   GMenuModel *menu;
   GAction *action;
 
-  priv = example_app_window_get_instance_private (win);
   gtk_widget_init_template (GTK_WIDGET (win));
-  priv->settings = g_settings_new ("org.gtk.exampleapp");
+  win->settings = g_settings_new ("org.gtk.exampleapp");
 
-  g_settings_bind (priv->settings, "transition",
-                   priv->stack, "transition-type",
+  g_settings_bind (win->settings, "transition",
+                   win->stack, "transition-type",
                    G_SETTINGS_BIND_DEFAULT);
 
-  g_settings_bind (priv->settings, "show-words",
-                   priv->sidebar, "reveal-child",
+  g_settings_bind (win->settings, "show-words",
+                   win->sidebar, "reveal-child",
                    G_SETTINGS_BIND_DEFAULT);
 
-  g_object_bind_property (priv->search, "active",
-                          priv->searchbar, "search-mode-enabled",
+  g_object_bind_property (win->search, "active",
+                          win->searchbar, "search-mode-enabled",
                           G_BINDING_BIDIRECTIONAL);
 
-  g_signal_connect (priv->sidebar, "notify::reveal-child",
+  g_signal_connect (win->sidebar, "notify::reveal-child",
                     G_CALLBACK (words_changed), win);
 
   builder = gtk_builder_new_from_resource ("/org/gtk/exampleapp/gears-menu.ui");
   menu = G_MENU_MODEL (gtk_builder_get_object (builder, "menu"));
-  gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (priv->gears), menu);
+  gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (win->gears), menu);
   g_object_unref (builder);
 
-  action = g_settings_create_action (priv->settings, "show-words");
+  action = g_settings_create_action (win->settings, "show-words");
   g_action_map_add_action (G_ACTION_MAP (win), action);
   g_object_unref (action);
 
-  action = (GAction*) g_property_action_new ("show-lines", priv->lines, "visible");
+  action = (GAction*) g_property_action_new ("show-lines", win->lines, "visible");
   g_action_map_add_action (G_ACTION_MAP (win), action);
   g_object_unref (action);
 
-  g_object_bind_property (priv->lines, "visible",
-                          priv->lines_label, "visible",
+  g_object_bind_property (win->lines, "visible",
+                          win->lines_label, "visible",
                           G_BINDING_DEFAULT);
 
   g_object_set (gtk_settings_get_default (), "gtk-shell-shows-app-menu", FALSE, NULL);
@@ -245,12 +210,10 @@ static void
 example_app_window_dispose (GObject *object)
 {
   ExampleAppWindow *win;
-  ExampleAppWindowPrivate *priv;
 
   win = EXAMPLE_APP_WINDOW (object);
-  priv = example_app_window_get_instance_private (win);
 
-  g_clear_object (&priv->settings);
+  g_clear_object (&win->settings);
 
   G_OBJECT_CLASS (example_app_window_parent_class)->dispose (object);
 }
@@ -263,15 +226,15 @@ example_app_window_class_init (ExampleAppWindowClass *class)
   gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
                                                "/org/gtk/exampleapp/window.ui");
 
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, stack);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, search);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, searchbar);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, searchentry);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, gears);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, words);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, sidebar);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, lines);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, lines_label);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, stack);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, search);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, searchbar);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, searchentry);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, gears);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, words);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, sidebar);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, lines);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, lines_label);
 
   gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), search_text_changed);
   gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), visible_child_changed);
@@ -287,7 +250,6 @@ void
 example_app_window_open (ExampleAppWindow *win,
                          GFile            *file)
 {
-  ExampleAppWindowPrivate *priv;
   gchar *basename;
   GtkWidget *scrolled, *view;
   gchar *contents;
@@ -296,19 +258,16 @@ example_app_window_open (ExampleAppWindow *win,
   GtkTextTag *tag;
   GtkTextIter start_iter, end_iter;
 
-  priv = example_app_window_get_instance_private (win);
   basename = g_file_get_basename (file);
 
   scrolled = gtk_scrolled_window_new (NULL, NULL);
-  gtk_widget_show (scrolled);
   gtk_widget_set_hexpand (scrolled, TRUE);
   gtk_widget_set_vexpand (scrolled, TRUE);
   view = gtk_text_view_new ();
   gtk_text_view_set_editable (GTK_TEXT_VIEW (view), FALSE);
   gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (view), FALSE);
-  gtk_widget_show (view);
   gtk_container_add (GTK_CONTAINER (scrolled), view);
-  gtk_stack_add_titled (GTK_STACK (priv->stack), scrolled, basename, basename);
+  gtk_stack_add_titled (GTK_STACK (win->stack), scrolled, basename, basename);
 
   buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 
@@ -319,7 +278,7 @@ example_app_window_open (ExampleAppWindow *win,
     }
 
   tag = gtk_text_buffer_create_tag (buffer, NULL, NULL);
-  g_settings_bind (priv->settings, "font",
+  g_settings_bind (win->settings, "font",
                    tag, "font",
                    G_SETTINGS_BIND_DEFAULT);
 
@@ -329,7 +288,7 @@ example_app_window_open (ExampleAppWindow *win,
 
   g_free (basename);
 
-  gtk_widget_set_sensitive (priv->search, TRUE);
+  gtk_widget_set_sensitive (win->search, TRUE);
 
   update_words (win);
   update_lines (win);

examples/application10/prefs.ui

@@ -9,15 +9,13 @@
       <object class="GtkBox" id="vbox">
         <child>
           <object class="GtkGrid" id="grid">
-            <property name="visible">True</property>
             <property name="margin">6</property>
             <property name="row-spacing">12</property>
             <property name="column-spacing">6</property>
             <child>
               <object class="GtkLabel" id="fontlabel">
-                <property name="visible">True</property>
                 <property name="label">_Font:</property>
-                <property name="use-underline">True</property>
+                <property name="use-underline">1</property>
                 <property name="mnemonic-widget">font</property>
                 <property name="xalign">1</property>
               </object>
@@ -28,7 +26,6 @@
             </child>
             <child>
               <object class="GtkFontButton" id="font">
-                <property name="visible">True</property>
               </object>
               <packing>
                 <property name="left-attach">1</property>
@@ -37,9 +34,8 @@
             </child>
             <child>
               <object class="GtkLabel" id="transitionlabel">
-                <property name="visible">True</property>
                 <property name="label">_Transition:</property>
-                <property name="use-underline">True</property>
+                <property name="use-underline">1</property>
                 <property name="mnemonic-widget">transition</property>
                 <property name="xalign">1</property>
               </object>
@@ -50,7 +46,6 @@
             </child>
             <child>
               <object class="GtkComboBoxText" id="transition">
-                <property name="visible">True</property>
                 <items>
                   <item translatable="yes" id="none">None</item>
                   <item translatable="yes" id="crossfade">Fade</item>

examples/application10/window.ui

@@ -5,107 +5,79 @@
     <property name="title" translatable="yes">Example Application</property>
     <property name="default-width">600</property>
     <property name="default-height">400</property>
-        <child type="titlebar">
-          <object class="GtkHeaderBar" id="header">
-            <property name="visible">True</property>
-            <property name="show-title-buttons">True</property>
-            <child>
-              <object class="GtkLabel" id="lines_label">
-                <property name="visible">False</property>
-                <property name="label" translatable="yes">Lines:</property>
-              </object>
-              <packing>
-                <property name="pack-type">start</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkLabel" id="lines">
-                <property name="visible">False</property>
-              </object>
-              <packing>
-                <property name="pack-type">start</property>
-              </packing>
-            </child>
-            <child type="title">
-              <object class="GtkStackSwitcher" id="tabs">
-                <property name="visible">True</property>
-                <property name="stack">stack</property>
-              </object>
-            </child>
-            <child>
-              <object class="GtkToggleButton" id="search">
-                <property name="visible">True</property>
-                <property name="sensitive">False</property>
-                <style>
-                  <class name="image-button"/>
-                </style>
-                <child>
-                  <object class="GtkImage" id="search-icon">
-                    <property name="visible">True</property>
-                    <property name="icon-name">edit-find-symbolic</property>
-                  </object>
-                </child>
-              </object>
-              <packing>
-                <property name="pack-type">end</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkMenuButton" id="gears">
-                <property name="visible">True</property>
-                <property name="direction">none</property>
-                <property name="use-popover">True</property>
-                <style>
-                  <class name="image-button"/>
-                </style>
-              </object>
-              <packing>
-                <property name="pack-type">end</property>
-              </packing>
-            </child>
+    <child type="titlebar">
+      <object class="GtkHeaderBar" id="header">
+        <property name="show-title-buttons">1</property>
+        <child>
+          <object class="GtkLabel" id="lines_label">
+            <property name="visible">0</property>
+            <property name="label" translatable="yes">Lines:</property>
           </object>
         </child>
+        <child>
+          <object class="GtkLabel" id="lines">
+            <property name="visible">0</property>
+          </object>
+        </child>
+        <child type="title">
+          <object class="GtkStackSwitcher" id="tabs">
+            <property name="stack">stack</property>
+          </object>
+        </child>
+        <child>
+          <object class="GtkToggleButton" id="search">
+            <property name="sensitive">0</property>
+            <property name="icon-name">edit-find-symbolic</property>
+          </object>
+          <packing>
+            <property name="pack-type">end</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkMenuButton" id="gears">
+            <property name="direction">none</property>
+            <style>
+              <class name="image-button"/>
+            </style>
+          </object>
+          <packing>
+            <property name="pack-type">end</property>
+          </packing>
+        </child>
+      </object>
+    </child>
     <child>
       <object class="GtkBox" id="content_box">
-        <property name="visible">True</property>
         <property name="orientation">vertical</property>
         <child>
           <object class="GtkSearchBar" id="searchbar">
-            <property name="visible">True</property>
             <child>
               <object class="GtkSearchEntry" id="searchentry">
                 <signal name="search-changed" handler="search_text_changed"/>
-                <property name="visible">True</property>
               </object>
             </child>
           </object>
         </child>
         <child>
           <object class="GtkBox" id="hbox">
-            <property name="visible">True</property>
             <child>
               <object class="GtkRevealer" id="sidebar">
-                <property name="visible">True</property>
                 <property name="transition-type">slide-right</property>
                 <child>
-                 <object class="GtkScrolledWindow" id="sidebar-sw">
-                   <property name="visible">True</property>
-                   <property name="hscrollbar-policy">never</property>
-                   <property name="vscrollbar-policy">automatic</property>
-                   <child>
-                     <object class="GtkListBox" id="words">
-                       <property name="visible">True</property>
-                       <property name="selection-mode">none</property>
-                     </object>
-                   </child>
-                 </object>
+                  <object class="GtkScrolledWindow" id="sidebar-sw">
+                    <property name="hscrollbar-policy">never</property>
+                    <child>
+                      <object class="GtkListBox" id="words">
+                        <property name="selection-mode">none</property>
+                      </object>
+                    </child>
+                  </object>
                 </child>
               </object>
             </child>
             <child>
               <object class="GtkStack" id="stack">
                 <signal name="notify::visible-child" handler="visible_child_changed"/>
-                <property name="visible">True</property>
               </object>
             </child>
           </object>

examples/application2/Makefile.example

@@ -1,7 +1,7 @@
 CC ?= gcc
 PKGCONFIG = $(shell which pkg-config)
-CFLAGS = $(shell $(PKGCONFIG) --cflags gtk+-3.0)
-LIBS = $(shell $(PKGCONFIG) --libs gtk+-3.0)
+CFLAGS = $(shell $(PKGCONFIG) --cflags gtk+-4.0)
+LIBS = $(shell $(PKGCONFIG) --libs gtk+-4.0)
 GLIB_COMPILE_RESOURCES = $(shell $(PKGCONFIG) --variable=glib_compile_resources gio-2.0)
 
 SRC = exampleapp.c exampleappwin.c main.c

examples/application2/window.ui

@@ -7,14 +7,11 @@
     <property name="default-height">400</property>
     <child>
       <object class="GtkBox" id="content_box">
-        <property name="visible">True</property>
         <property name="orientation">vertical</property>
         <child>
           <object class="GtkHeaderBar" id="header">
-            <property name="visible">True</property>
             <child type="title">
               <object class="GtkStackSwitcher" id="tabs">
-                <property name="visible">True</property>
                 <property name="stack">stack</property>
               </object>
             </child>
@@ -22,7 +19,6 @@
         </child>
         <child>
           <object class="GtkStack" id="stack">
-            <property name="visible">True</property>
           </object>
         </child>
       </object>

examples/application3/Makefile.example

@@ -1,7 +1,7 @@
 CC ?= gcc
 PKGCONFIG = $(shell which pkg-config)
-CFLAGS = $(shell $(PKGCONFIG) --cflags gtk+-3.0)
-LIBS = $(shell $(PKGCONFIG) --libs gtk+-3.0)
+CFLAGS = $(shell $(PKGCONFIG) --cflags gtk+-4.0)
+LIBS = $(shell $(PKGCONFIG) --libs gtk+-4.0)
 GLIB_COMPILE_RESOURCES = $(shell $(PKGCONFIG) --variable=glib_compile_resources gio-2.0)
 
 SRC = exampleapp.c exampleappwin.c main.c

examples/application3/exampleappwin.c

@@ -6,16 +6,11 @@
 struct _ExampleAppWindow
 {
   GtkApplicationWindow parent;
-};
 
-typedef struct _ExampleAppWindowPrivate ExampleAppWindowPrivate;
-
-struct _ExampleAppWindowPrivate
-{
   GtkWidget *stack;
 };
 
-G_DEFINE_TYPE_WITH_PRIVATE(ExampleAppWindow, example_app_window, GTK_TYPE_APPLICATION_WINDOW);
+G_DEFINE_TYPE (ExampleAppWindow, example_app_window, GTK_TYPE_APPLICATION_WINDOW)
 
 static void
 example_app_window_init (ExampleAppWindow *win)
@@ -28,7 +23,7 @@ example_app_window_class_init (ExampleAppWindowClass *class)
 {
   gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
                                                "/org/gtk/exampleapp/window.ui");
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, stack);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, stack);
 }
 
 ExampleAppWindow *
@@ -41,25 +36,21 @@ void
 example_app_window_open (ExampleAppWindow *win,
                          GFile            *file)
 {
-  ExampleAppWindowPrivate *priv;
   gchar *basename;
   GtkWidget *scrolled, *view;
   gchar *contents;
   gsize length;
 
-  priv = example_app_window_get_instance_private (win);
   basename = g_file_get_basename (file);
 
   scrolled = gtk_scrolled_window_new (NULL, NULL);
-  gtk_widget_show (scrolled);
   gtk_widget_set_hexpand (scrolled, TRUE);
   gtk_widget_set_vexpand (scrolled, TRUE);
   view = gtk_text_view_new ();
   gtk_text_view_set_editable (GTK_TEXT_VIEW (view), FALSE);
   gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (view), FALSE);
-  gtk_widget_show (view);
   gtk_container_add (GTK_CONTAINER (scrolled), view);
-  gtk_stack_add_titled (GTK_STACK (priv->stack), scrolled, basename, basename);
+  gtk_stack_add_titled (GTK_STACK (win->stack), scrolled, basename, basename);
 
   if (g_file_load_contents (file, NULL, &contents, &length, NULL, NULL))
     {

examples/application3/window.ui

@@ -7,14 +7,11 @@
     <property name="default-height">400</property>
     <child>
       <object class="GtkBox" id="content_box">
-        <property name="visible">True</property>
         <property name="orientation">vertical</property>
         <child>
           <object class="GtkHeaderBar" id="header">
-            <property name="visible">True</property>
             <child type="title">
               <object class="GtkStackSwitcher" id="tabs">
-                <property name="visible">True</property>
                 <property name="stack">stack</property>
               </object>
             </child>
@@ -22,7 +19,6 @@
         </child>
         <child>
           <object class="GtkStack" id="stack">
-            <property name="visible">True</property>
           </object>
         </child>
       </object>

examples/application4/Makefile.example

@@ -1,7 +1,7 @@
 CC ?= gcc
 PKGCONFIG = $(shell which pkg-config)
-CFLAGS = $(shell $(PKGCONFIG) --cflags gtk+-3.0)
-LIBS = $(shell $(PKGCONFIG) --libs gtk+-3.0)
+CFLAGS = $(shell $(PKGCONFIG) --cflags gtk+-4.0)
+LIBS = $(shell $(PKGCONFIG) --libs gtk+-4.0)
 GLIB_COMPILE_RESOURCES = $(shell $(PKGCONFIG) --variable=glib_compile_resources gio-2.0)
 
 SRC = exampleapp.c exampleappwin.c main.c

examples/application4/exampleappwin.c

@@ -6,16 +6,11 @@
 struct _ExampleAppWindow
 {
   GtkApplicationWindow parent;
-};
 
-typedef struct _ExampleAppWindowPrivate ExampleAppWindowPrivate;
-
-struct _ExampleAppWindowPrivate
-{
   GtkWidget *stack;
 };
 
-G_DEFINE_TYPE_WITH_PRIVATE(ExampleAppWindow, example_app_window, GTK_TYPE_APPLICATION_WINDOW);
+G_DEFINE_TYPE (ExampleAppWindow, example_app_window, GTK_TYPE_APPLICATION_WINDOW)
 
 static void
 example_app_window_init (ExampleAppWindow *win)
@@ -28,7 +23,7 @@ example_app_window_class_init (ExampleAppWindowClass *class)
 {
   gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
                                                "/org/gtk/exampleapp/window.ui");
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, stack);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, stack);
 }
 
 ExampleAppWindow *
@@ -41,25 +36,21 @@ void
 example_app_window_open (ExampleAppWindow *win,
                          GFile            *file)
 {
-  ExampleAppWindowPrivate *priv;
   gchar *basename;
   GtkWidget *scrolled, *view;
   gchar *contents;
   gsize length;
 
-  priv = example_app_window_get_instance_private (win);
   basename = g_file_get_basename (file);
 
   scrolled = gtk_scrolled_window_new (NULL, NULL);
-  gtk_widget_show (scrolled);
   gtk_widget_set_hexpand (scrolled, TRUE);
   gtk_widget_set_vexpand (scrolled, TRUE);
   view = gtk_text_view_new ();
   gtk_text_view_set_editable (GTK_TEXT_VIEW (view), FALSE);
   gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (view), FALSE);
-  gtk_widget_show (view);
   gtk_container_add (GTK_CONTAINER (scrolled), view);
-  gtk_stack_add_titled (GTK_STACK (priv->stack), scrolled, basename, basename);
+  gtk_stack_add_titled (GTK_STACK (win->stack), scrolled, basename, basename);
 
   if (g_file_load_contents (file, NULL, &contents, &length, NULL, NULL))
     {

examples/application4/window.ui

@@ -7,14 +7,11 @@
     <property name="default-height">400</property>
     <child>
       <object class="GtkBox" id="content_box">
-        <property name="visible">True</property>
         <property name="orientation">vertical</property>
         <child>
           <object class="GtkHeaderBar" id="header">
-            <property name="visible">True</property>
             <child type="title">
               <object class="GtkStackSwitcher" id="tabs">
-                <property name="visible">True</property>
                 <property name="stack">stack</property>
               </object>
             </child>
@@ -22,7 +19,6 @@
         </child>
         <child>
           <object class="GtkStack" id="stack">
-            <property name="visible">True</property>
           </object>
         </child>
       </object>

examples/application5/Makefile.example

@@ -1,7 +1,7 @@
 CC ?= gcc
 PKGCONFIG = $(shell which pkg-config)
-CFLAGS = $(shell $(PKGCONFIG) --cflags gtk+-3.0)
-LIBS = $(shell $(PKGCONFIG) --libs gtk+-3.0)
+CFLAGS = $(shell $(PKGCONFIG) --cflags gtk+-4.0)
+LIBS = $(shell $(PKGCONFIG) --libs gtk+-4.0)
 GLIB_COMPILE_RESOURCES = $(shell $(PKGCONFIG) --variable=glib_compile_resources gio-2.0)
 GLIB_COMPILE_SCHEMAS = $(shell $(PKGCONFIG) --variable=glib_compile_schemas gio-2.0)
 

examples/application5/exampleappwin.c

@@ -6,29 +6,21 @@
 struct _ExampleAppWindow
 {
   GtkApplicationWindow parent;
-};
 
-typedef struct _ExampleAppWindowPrivate ExampleAppWindowPrivate;
-
-struct _ExampleAppWindowPrivate
-{
   GSettings *settings;
   GtkWidget *stack;
 };
 
-G_DEFINE_TYPE_WITH_PRIVATE(ExampleAppWindow, example_app_window, GTK_TYPE_APPLICATION_WINDOW);
+G_DEFINE_TYPE (ExampleAppWindow, example_app_window, GTK_TYPE_APPLICATION_WINDOW)
 
 static void
 example_app_window_init (ExampleAppWindow *win)
 {
-  ExampleAppWindowPrivate *priv;
-
-  priv = example_app_window_get_instance_private (win);
   gtk_widget_init_template (GTK_WIDGET (win));
-  priv->settings = g_settings_new ("org.gtk.exampleapp");
+  win->settings = g_settings_new ("org.gtk.exampleapp");
 
-  g_settings_bind (priv->settings, "transition",
-                   priv->stack, "transition-type",
+  g_settings_bind (win->settings, "transition",
+                   win->stack, "transition-type",
                    G_SETTINGS_BIND_DEFAULT);
 }
 
@@ -36,12 +28,10 @@ static void
 example_app_window_dispose (GObject *object)
 {
   ExampleAppWindow *win;
-  ExampleAppWindowPrivate *priv;
 
   win = EXAMPLE_APP_WINDOW (object);
-  priv = example_app_window_get_instance_private (win);
 
-  g_clear_object (&priv->settings);
+  g_clear_object (&win->settings);
 
   G_OBJECT_CLASS (example_app_window_parent_class)->dispose (object);
 }
@@ -53,7 +43,7 @@ example_app_window_class_init (ExampleAppWindowClass *class)
 
   gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
                                                "/org/gtk/exampleapp/window.ui");
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, stack);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, stack);
 }
 
 ExampleAppWindow *
@@ -66,7 +56,6 @@ void
 example_app_window_open (ExampleAppWindow *win,
                          GFile            *file)
 {
-  ExampleAppWindowPrivate *priv;
   gchar *basename;
   GtkWidget *scrolled, *view;
   gchar *contents;
@@ -75,19 +64,16 @@ example_app_window_open (ExampleAppWindow *win,
   GtkTextTag *tag;
   GtkTextIter start_iter, end_iter;
 
-  priv = example_app_window_get_instance_private (win);
   basename = g_file_get_basename (file);
 
   scrolled = gtk_scrolled_window_new (NULL, NULL);
-  gtk_widget_show (scrolled);
   gtk_widget_set_hexpand (scrolled, TRUE);
   gtk_widget_set_vexpand (scrolled, TRUE);
   view = gtk_text_view_new ();
   gtk_text_view_set_editable (GTK_TEXT_VIEW (view), FALSE);
   gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (view), FALSE);
-  gtk_widget_show (view);
   gtk_container_add (GTK_CONTAINER (scrolled), view);
-  gtk_stack_add_titled (GTK_STACK (priv->stack), scrolled, basename, basename);
+  gtk_stack_add_titled (GTK_STACK (win->stack), scrolled, basename, basename);
 
   buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 
@@ -98,7 +84,7 @@ example_app_window_open (ExampleAppWindow *win,
     }
 
   tag = gtk_text_buffer_create_tag (buffer, NULL, NULL);
-  g_settings_bind (priv->settings, "font", tag, "font", G_SETTINGS_BIND_DEFAULT);
+  g_settings_bind (win->settings, "font", tag, "font", G_SETTINGS_BIND_DEFAULT);
 
   gtk_text_buffer_get_start_iter (buffer, &start_iter);
   gtk_text_buffer_get_end_iter (buffer, &end_iter);

examples/application5/window.ui

@@ -7,14 +7,11 @@
     <property name="default-height">400</property>
     <child>
       <object class="GtkBox" id="content_box">
-        <property name="visible">True</property>
         <property name="orientation">vertical</property>
         <child>
           <object class="GtkHeaderBar" id="header">
-            <property name="visible">True</property>
             <child type="title">
               <object class="GtkStackSwitcher" id="tabs">
-                <property name="visible">True</property>
                 <property name="stack">stack</property>
               </object>
             </child>
@@ -22,7 +19,6 @@
         </child>
         <child>
           <object class="GtkStack" id="stack">
-            <property name="visible">True</property>
           </object>
         </child>
       </object>

examples/application6/Makefile.example

@@ -1,7 +1,7 @@
 CC ?= gcc
 PKGCONFIG = $(shell which pkg-config)
-CFLAGS = $(shell $(PKGCONFIG) --cflags gtk+-3.0)
-LIBS = $(shell $(PKGCONFIG) --libs gtk+-3.0)
+CFLAGS = $(shell $(PKGCONFIG) --cflags gtk+-4.0)
+LIBS = $(shell $(PKGCONFIG) --libs gtk+-4.0)
 GLIB_COMPILE_RESOURCES = $(shell $(PKGCONFIG) --variable=glib_compile_resources gio-2.0)
 GLIB_COMPILE_SCHEMAS = $(shell $(PKGCONFIG) --variable=glib_compile_schemas gio-2.0)
 

examples/application6/exampleappprefs.c

@@ -7,43 +7,36 @@
 struct _ExampleAppPrefs
 {
   GtkDialog parent;
-};
 
-typedef struct _ExampleAppPrefsPrivate ExampleAppPrefsPrivate;
-
-struct _ExampleAppPrefsPrivate
-{
   GSettings *settings;
   GtkWidget *font;
   GtkWidget *transition;
 };
 
-G_DEFINE_TYPE_WITH_PRIVATE(ExampleAppPrefs, example_app_prefs, GTK_TYPE_DIALOG)
+G_DEFINE_TYPE (ExampleAppPrefs, example_app_prefs, GTK_TYPE_DIALOG)
 
 static void
 example_app_prefs_init (ExampleAppPrefs *prefs)
 {
-  ExampleAppPrefsPrivate *priv;
-
-  priv = example_app_prefs_get_instance_private (prefs);
   gtk_widget_init_template (GTK_WIDGET (prefs));
-  priv->settings = g_settings_new ("org.gtk.exampleapp");
+  prefs->settings = g_settings_new ("org.gtk.exampleapp");
 
-  g_settings_bind (priv->settings, "font",
-                   priv->font, "font",
+  g_settings_bind (prefs->settings, "font",
+                   prefs->font, "font",
                    G_SETTINGS_BIND_DEFAULT);
-  g_settings_bind (priv->settings, "transition",
-                   priv->transition, "active-id",
+  g_settings_bind (prefs->settings, "transition",
+                   prefs->transition, "active-id",
                    G_SETTINGS_BIND_DEFAULT);
 }
 
 static void
 example_app_prefs_dispose (GObject *object)
 {
-  ExampleAppPrefsPrivate *priv;
+  ExampleAppPrefs *prefs;
 
-  priv = example_app_prefs_get_instance_private (EXAMPLE_APP_PREFS (object));
-  g_clear_object (&priv->settings);
+  prefs = EXAMPLE_APP_PREFS (object);
+
+  g_clear_object (&prefs->settings);
 
   G_OBJECT_CLASS (example_app_prefs_parent_class)->dispose (object);
 }
@@ -55,8 +48,8 @@ example_app_prefs_class_init (ExampleAppPrefsClass *class)
 
   gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
                                                "/org/gtk/exampleapp/prefs.ui");
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppPrefs, font);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppPrefs, transition);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppPrefs, font);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppPrefs, transition);
 }
 
 ExampleAppPrefs *

examples/application6/exampleappwin.c

@@ -6,29 +6,21 @@
 struct _ExampleAppWindow
 {
   GtkApplicationWindow parent;
-};
 
-typedef struct ExampleAppWindowPrivate ExampleAppWindowPrivate;
-
-struct ExampleAppWindowPrivate
-{
   GSettings *settings;
   GtkWidget *stack;
 };
 
-G_DEFINE_TYPE_WITH_PRIVATE(ExampleAppWindow, example_app_window, GTK_TYPE_APPLICATION_WINDOW);
+G_DEFINE_TYPE (ExampleAppWindow, example_app_window, GTK_TYPE_APPLICATION_WINDOW)
 
 static void
 example_app_window_init (ExampleAppWindow *win)
 {
-  ExampleAppWindowPrivate *priv;
-
-  priv = example_app_window_get_instance_private (win);
   gtk_widget_init_template (GTK_WIDGET (win));
-  priv->settings = g_settings_new ("org.gtk.exampleapp");
+  win->settings = g_settings_new ("org.gtk.exampleapp");
 
-  g_settings_bind (priv->settings, "transition",
-                   priv->stack, "transition-type",
+  g_settings_bind (win->settings, "transition",
+                   win->stack, "transition-type",
                    G_SETTINGS_BIND_DEFAULT);
 }
 
@@ -36,12 +28,10 @@ static void
 example_app_window_dispose (GObject *object)
 {
   ExampleAppWindow *win;
-  ExampleAppWindowPrivate *priv;
 
   win = EXAMPLE_APP_WINDOW (object);
-  priv = example_app_window_get_instance_private (win);
 
-  g_clear_object (&priv->settings);
+  g_clear_object (&win->settings);
 
   G_OBJECT_CLASS (example_app_window_parent_class)->dispose (object);
 }
@@ -53,7 +43,7 @@ example_app_window_class_init (ExampleAppWindowClass *class)
 
   gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
                                                "/org/gtk/exampleapp/window.ui");
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, stack);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, stack);
 }
 
 ExampleAppWindow *
@@ -66,7 +56,6 @@ void
 example_app_window_open (ExampleAppWindow *win,
                          GFile            *file)
 {
-  ExampleAppWindowPrivate *priv;
   gchar *basename;
   GtkWidget *scrolled, *view;
   gchar *contents;
@@ -75,19 +64,16 @@ example_app_window_open (ExampleAppWindow *win,
   GtkTextTag *tag;
   GtkTextIter start_iter, end_iter;
 
-  priv = example_app_window_get_instance_private (win);
   basename = g_file_get_basename (file);
 
   scrolled = gtk_scrolled_window_new (NULL, NULL);
-  gtk_widget_show (scrolled);
   gtk_widget_set_hexpand (scrolled, TRUE);
   gtk_widget_set_vexpand (scrolled, TRUE);
   view = gtk_text_view_new ();
   gtk_text_view_set_editable (GTK_TEXT_VIEW (view), FALSE);
   gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (view), FALSE);
-  gtk_widget_show (view);
   gtk_container_add (GTK_CONTAINER (scrolled), view);
-  gtk_stack_add_titled (GTK_STACK (priv->stack), scrolled, basename, basename);
+  gtk_stack_add_titled (GTK_STACK (win->stack), scrolled, basename, basename);
 
   buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 
@@ -98,7 +84,7 @@ example_app_window_open (ExampleAppWindow *win,
     }
 
   tag = gtk_text_buffer_create_tag (buffer, NULL, NULL);
-  g_settings_bind (priv->settings, "font", tag, "font", G_SETTINGS_BIND_DEFAULT);
+  g_settings_bind (win->settings, "font", tag, "font", G_SETTINGS_BIND_DEFAULT);
 
   gtk_text_buffer_get_start_iter (buffer, &start_iter);
   gtk_text_buffer_get_end_iter (buffer, &end_iter);

examples/application6/prefs.ui

@@ -9,15 +9,13 @@
       <object class="GtkBox" id="vbox">
         <child>
           <object class="GtkGrid" id="grid">
-            <property name="visible">True</property>
             <property name="margin">6</property>
             <property name="row-spacing">12</property>
             <property name="column-spacing">6</property>
             <child>
               <object class="GtkLabel" id="fontlabel">
-                <property name="visible">True</property>
                 <property name="label">_Font:</property>
-                <property name="use-underline">True</property>
+                <property name="use-underline">1</property>
                 <property name="mnemonic-widget">font</property>
                 <property name="xalign">1</property>
               </object>
@@ -28,7 +26,6 @@
             </child>
             <child>
               <object class="GtkFontButton" id="font">
-                <property name="visible">True</property>
               </object>
               <packing>
                 <property name="left-attach">1</property>
@@ -37,9 +34,8 @@
             </child>
             <child>
               <object class="GtkLabel" id="transitionlabel">
-                <property name="visible">True</property>
                 <property name="label">_Transition:</property>
-                <property name="use-underline">True</property>
+                <property name="use-underline">1</property>
                 <property name="mnemonic-widget">transition</property>
                 <property name="xalign">1</property>
               </object>
@@ -50,7 +46,6 @@
             </child>
             <child>
               <object class="GtkComboBoxText" id="transition">
-                <property name="visible">True</property>
                 <items>
                   <item translatable="yes" id="none">None</item>
                   <item translatable="yes" id="crossfade">Fade</item>

examples/application6/window.ui

@@ -7,14 +7,11 @@
     <property name="default-height">400</property>
     <child>
       <object class="GtkBox" id="content_box">
-        <property name="visible">True</property>
         <property name="orientation">vertical</property>
         <child>
           <object class="GtkHeaderBar" id="header">
-            <property name="visible">True</property>
             <child type="title">
               <object class="GtkStackSwitcher" id="tabs">
-                <property name="visible">True</property>
                 <property name="stack">stack</property>
               </object>
             </child>
@@ -22,7 +19,6 @@
         </child>
         <child>
           <object class="GtkStack" id="stack">
-            <property name="visible">True</property>
           </object>
         </child>
       </object>

examples/application7/Makefile.example

@@ -1,7 +1,7 @@
 CC ?= gcc
 PKGCONFIG = $(shell which pkg-config)
-CFLAGS = $(shell $(PKGCONFIG) --cflags gtk+-3.0)
-LIBS = $(shell $(PKGCONFIG) --libs gtk+-3.0)
+CFLAGS = $(shell $(PKGCONFIG) --cflags gtk+-4.0)
+LIBS = $(shell $(PKGCONFIG) --libs gtk+-4.0)
 GLIB_COMPILE_RESOURCES = $(shell $(PKGCONFIG) --variable=glib_compile_resources gio-2.0)
 GLIB_COMPILE_SCHEMAS = $(shell $(PKGCONFIG) --variable=glib_compile_schemas gio-2.0)
 

examples/application7/exampleappprefs.c

@@ -7,43 +7,36 @@
 struct _ExampleAppPrefs
 {
   GtkDialog parent;
-};
 
-typedef struct _ExampleAppPrefsPrivate ExampleAppPrefsPrivate;
-
-struct _ExampleAppPrefsPrivate
-{
   GSettings *settings;
   GtkWidget *font;
   GtkWidget *transition;
 };
 
-G_DEFINE_TYPE_WITH_PRIVATE(ExampleAppPrefs, example_app_prefs, GTK_TYPE_DIALOG)
+G_DEFINE_TYPE (ExampleAppPrefs, example_app_prefs, GTK_TYPE_DIALOG)
 
 static void
 example_app_prefs_init (ExampleAppPrefs *prefs)
 {
-  ExampleAppPrefsPrivate *priv;
-
-  priv = example_app_prefs_get_instance_private (prefs);
   gtk_widget_init_template (GTK_WIDGET (prefs));
-  priv->settings = g_settings_new ("org.gtk.exampleapp");
+  prefs->settings = g_settings_new ("org.gtk.exampleapp");
 
-  g_settings_bind (priv->settings, "font",
-                   priv->font, "font",
+  g_settings_bind (prefs->settings, "font",
+                   prefs->font, "font",
                    G_SETTINGS_BIND_DEFAULT);
-  g_settings_bind (priv->settings, "transition",
-                   priv->transition, "active-id",
+  g_settings_bind (prefs->settings, "transition",
+                   prefs->transition, "active-id",
                    G_SETTINGS_BIND_DEFAULT);
 }
 
 static void
 example_app_prefs_dispose (GObject *object)
 {
-  ExampleAppPrefsPrivate *priv;
+  ExampleAppPrefs *prefs;
 
-  priv = example_app_prefs_get_instance_private (EXAMPLE_APP_PREFS (object));
-  g_clear_object (&priv->settings);
+  prefs = EXAMPLE_APP_PREFS (object);
+
+  g_clear_object (&prefs->settings);
 
   G_OBJECT_CLASS (example_app_prefs_parent_class)->dispose (object);
 }
@@ -55,8 +48,8 @@ example_app_prefs_class_init (ExampleAppPrefsClass *class)
 
   gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
                                                "/org/gtk/exampleapp/prefs.ui");
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppPrefs, font);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppPrefs, transition);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppPrefs, font);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppPrefs, transition);
 }
 
 ExampleAppPrefs *

examples/application7/exampleappwin.c

@@ -6,25 +6,19 @@
 struct _ExampleAppWindow
 {
   GtkApplicationWindow parent;
-};
 
-typedef struct _ExampleAppWindowPrivate ExampleAppWindowPrivate;
-
-struct _ExampleAppWindowPrivate
-{
   GSettings *settings;
   GtkWidget *stack;
   GtkWidget *search;
   GtkWidget *searchbar;
 };
 
-G_DEFINE_TYPE_WITH_PRIVATE(ExampleAppWindow, example_app_window, GTK_TYPE_APPLICATION_WINDOW);
+G_DEFINE_TYPE (ExampleAppWindow, example_app_window, GTK_TYPE_APPLICATION_WINDOW)
 
 static void
-search_text_changed (GtkEntry *entry)
+search_text_changed (GtkEntry         *entry,
+                     ExampleAppWindow *win)
 {
-  ExampleAppWindow *win;
-  ExampleAppWindowPrivate *priv;
   const gchar *text;
   GtkWidget *tab;
   GtkWidget *view;
@@ -36,10 +30,7 @@ search_text_changed (GtkEntry *entry)
   if (text[0] == '\0')
     return;
 
-  win = EXAMPLE_APP_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (entry)));
-  priv = example_app_window_get_instance_private (win);
-
-  tab = gtk_stack_get_visible_child (GTK_STACK (priv->stack));
+  tab = gtk_stack_get_visible_child (GTK_STACK (win->stack));
   view = gtk_bin_get_child (GTK_BIN (tab));
   buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 
@@ -55,36 +46,28 @@ search_text_changed (GtkEntry *entry)
 }
 
 static void
-visible_child_changed (GObject    *stack,
-                       GParamSpec *pspec)
+visible_child_changed (GObject          *stack,
+                       GParamSpec       *pspec,
+                       ExampleAppWindow *win)
 {
-  ExampleAppWindow *win;
-  ExampleAppWindowPrivate *priv;
-
   if (gtk_widget_in_destruction (GTK_WIDGET (stack)))
     return;
 
-  win = EXAMPLE_APP_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (stack)));
-
-  priv = example_app_window_get_instance_private (win);
-  gtk_search_bar_set_search_mode (GTK_SEARCH_BAR (priv->searchbar), FALSE);
+  gtk_search_bar_set_search_mode (GTK_SEARCH_BAR (win->searchbar), FALSE);
 }
 
 static void
 example_app_window_init (ExampleAppWindow *win)
 {
-  ExampleAppWindowPrivate *priv;
-
-  priv = example_app_window_get_instance_private (win);
   gtk_widget_init_template (GTK_WIDGET (win));
-  priv->settings = g_settings_new ("org.gtk.exampleapp");
+  win->settings = g_settings_new ("org.gtk.exampleapp");
 
-  g_settings_bind (priv->settings, "transition",
-                   priv->stack, "transition-type",
+  g_settings_bind (win->settings, "transition",
+                   win->stack, "transition-type",
                    G_SETTINGS_BIND_DEFAULT);
 
-  g_object_bind_property (priv->search, "active",
-                          priv->searchbar, "search-mode-enabled",
+  g_object_bind_property (win->search, "active",
+                          win->searchbar, "search-mode-enabled",
                           G_BINDING_BIDIRECTIONAL);
 }
 
@@ -92,12 +75,10 @@ static void
 example_app_window_dispose (GObject *object)
 {
   ExampleAppWindow *win;
-  ExampleAppWindowPrivate *priv;
 
   win = EXAMPLE_APP_WINDOW (object);
-  priv = example_app_window_get_instance_private (win);
 
-  g_clear_object (&priv->settings);
+  g_clear_object (&win->settings);
 
   G_OBJECT_CLASS (example_app_window_parent_class)->dispose (object);
 }
@@ -110,9 +91,9 @@ example_app_window_class_init (ExampleAppWindowClass *class)
   gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
                                                "/org/gtk/exampleapp/window.ui");
 
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, stack);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, search);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, searchbar);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, stack);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, search);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, searchbar);
 
   gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), search_text_changed);
   gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), visible_child_changed);
@@ -128,7 +109,6 @@ void
 example_app_window_open (ExampleAppWindow *win,
                          GFile            *file)
 {
-  ExampleAppWindowPrivate *priv;
   gchar *basename;
   GtkWidget *scrolled, *view;
   gchar *contents;
@@ -137,19 +117,16 @@ example_app_window_open (ExampleAppWindow *win,
   GtkTextTag *tag;
   GtkTextIter start_iter, end_iter;
 
-  priv = example_app_window_get_instance_private (win);
   basename = g_file_get_basename (file);
 
   scrolled = gtk_scrolled_window_new (NULL, NULL);
-  gtk_widget_show (scrolled);
   gtk_widget_set_hexpand (scrolled, TRUE);
   gtk_widget_set_vexpand (scrolled, TRUE);
   view = gtk_text_view_new ();
   gtk_text_view_set_editable (GTK_TEXT_VIEW (view), FALSE);
   gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (view), FALSE);
-  gtk_widget_show (view);
   gtk_container_add (GTK_CONTAINER (scrolled), view);
-  gtk_stack_add_titled (GTK_STACK (priv->stack), scrolled, basename, basename);
+  gtk_stack_add_titled (GTK_STACK (win->stack), scrolled, basename, basename);
 
   buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 
@@ -160,7 +137,7 @@ example_app_window_open (ExampleAppWindow *win,
     }
 
   tag = gtk_text_buffer_create_tag (buffer, NULL, NULL);
-  g_settings_bind (priv->settings, "font",
+  g_settings_bind (win->settings, "font",
                    tag, "font",
                    G_SETTINGS_BIND_DEFAULT);
 
@@ -170,5 +147,5 @@ example_app_window_open (ExampleAppWindow *win,
 
   g_free (basename);
 
-  gtk_widget_set_sensitive (priv->search, TRUE);
+  gtk_widget_set_sensitive (win->search, TRUE);
 }

examples/application7/prefs.ui

@@ -9,15 +9,13 @@
       <object class="GtkBox" id="vbox">
         <child>
           <object class="GtkGrid" id="grid">
-            <property name="visible">True</property>
             <property name="margin">6</property>
             <property name="row-spacing">12</property>
             <property name="column-spacing">6</property>
             <child>
               <object class="GtkLabel" id="fontlabel">
-                <property name="visible">True</property>
                 <property name="label">_Font:</property>
-                <property name="use-underline">True</property>
+                <property name="use-underline">1</property>
                 <property name="mnemonic-widget">font</property>
                 <property name="xalign">1</property>
               </object>
@@ -28,7 +26,6 @@
             </child>
             <child>
               <object class="GtkFontButton" id="font">
-                <property name="visible">True</property>
               </object>
               <packing>
                 <property name="left-attach">1</property>
@@ -37,9 +34,8 @@
             </child>
             <child>
               <object class="GtkLabel" id="transitionlabel">
-                <property name="visible">True</property>
                 <property name="label">_Transition:</property>
-                <property name="use-underline">True</property>
+                <property name="use-underline">1</property>
                 <property name="mnemonic-widget">transition</property>
                 <property name="xalign">1</property>
               </object>
@@ -50,7 +46,6 @@
             </child>
             <child>
               <object class="GtkComboBoxText" id="transition">
-                <property name="visible">True</property>
                 <items>
                   <item translatable="yes" id="none">None</item>
                   <item translatable="yes" id="crossfade">Fade</item>

examples/application7/window.ui

@@ -7,30 +7,18 @@
     <property name="default-height">400</property>
     <child>
       <object class="GtkBox" id="content_box">
-        <property name="visible">True</property>
         <property name="orientation">vertical</property>
         <child>
           <object class="GtkHeaderBar" id="header">
-            <property name="visible">True</property>
             <child type="title">
               <object class="GtkStackSwitcher" id="tabs">
-                <property name="visible">True</property>
                 <property name="stack">stack</property>
               </object>
             </child>
             <child>
               <object class="GtkToggleButton" id="search">
-                <property name="visible">True</property>
-                <property name="sensitive">False</property>
-                <style>
-                  <class name="image-button"/>
-                </style>
-                <child>
-                  <object class="GtkImage" id="search-icon">
-                    <property name="visible">True</property>
-                    <property name="icon-name">edit-find-symbolic</property>
-                  </object>
-                </child>
+                <property name="sensitive">0</property>
+                <property name="icon-name">edit-find-symbolic</property>
               </object>
               <packing>
                 <property name="pack-type">end</property>
@@ -40,11 +28,9 @@
         </child>
         <child>
           <object class="GtkSearchBar" id="searchbar">
-            <property name="visible">True</property>
             <child>
               <object class="GtkSearchEntry" id="searchentry">
                 <signal name="search-changed" handler="search_text_changed"/>
-                <property name="visible">True</property>
               </object>
             </child>
           </object>
@@ -52,7 +38,6 @@
         <child>
           <object class="GtkStack" id="stack">
             <signal name="notify::visible-child" handler="visible_child_changed"/>
-            <property name="visible">True</property>
           </object>
         </child>
       </object>

examples/application8/Makefile.example

@@ -1,7 +1,7 @@
 CC ?= gcc
 PKGCONFIG = $(shell which pkg-config)
-CFLAGS = $(shell $(PKGCONFIG) --cflags gtk+-3.0)
-LIBS = $(shell $(PKGCONFIG) --libs gtk+-3.0)
+CFLAGS = $(shell $(PKGCONFIG) --cflags gtk+-4.0)
+LIBS = $(shell $(PKGCONFIG) --libs gtk+-4.0)
 GLIB_COMPILE_RESOURCES = $(shell $(PKGCONFIG) --variable=glib_compile_resources gio-2.0)
 GLIB_COMPILE_SCHEMAS = $(shell $(PKGCONFIG) --variable=glib_compile_schemas gio-2.0)
 

examples/application8/exampleappprefs.c

@@ -7,43 +7,36 @@
 struct _ExampleAppPrefs
 {
   GtkDialog parent;
-};
 
-typedef struct _ExampleAppPrefsPrivate ExampleAppPrefsPrivate;
-
-struct _ExampleAppPrefsPrivate
-{
   GSettings *settings;
   GtkWidget *font;
   GtkWidget *transition;
 };
 
-G_DEFINE_TYPE_WITH_PRIVATE(ExampleAppPrefs, example_app_prefs, GTK_TYPE_DIALOG)
+G_DEFINE_TYPE (ExampleAppPrefs, example_app_prefs, GTK_TYPE_DIALOG)
 
 static void
 example_app_prefs_init (ExampleAppPrefs *prefs)
 {
-  ExampleAppPrefsPrivate *priv;
-
-  priv = example_app_prefs_get_instance_private (prefs);
   gtk_widget_init_template (GTK_WIDGET (prefs));
-  priv->settings = g_settings_new ("org.gtk.exampleapp");
+  prefs->settings = g_settings_new ("org.gtk.exampleapp");
 
-  g_settings_bind (priv->settings, "font",
-                   priv->font, "font",
+  g_settings_bind (prefs->settings, "font",
+                   prefs->font, "font",
                    G_SETTINGS_BIND_DEFAULT);
-  g_settings_bind (priv->settings, "transition",
-                   priv->transition, "active-id",
+  g_settings_bind (prefs->settings, "transition",
+                   prefs->transition, "active-id",
                    G_SETTINGS_BIND_DEFAULT);
 }
 
 static void
 example_app_prefs_dispose (GObject *object)
 {
-  ExampleAppPrefsPrivate *priv;
+  ExampleAppPrefs *prefs;
 
-  priv = example_app_prefs_get_instance_private (EXAMPLE_APP_PREFS (object));
-  g_clear_object (&priv->settings);
+  prefs = EXAMPLE_APP_PREFS (object);
+
+  g_clear_object (&prefs->settings);
 
   G_OBJECT_CLASS (example_app_prefs_parent_class)->dispose (object);
 }
@@ -55,8 +48,8 @@ example_app_prefs_class_init (ExampleAppPrefsClass *class)
 
   gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
                                                "/org/gtk/exampleapp/prefs.ui");
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppPrefs, font);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppPrefs, transition);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppPrefs, font);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppPrefs, transition);
 }
 
 ExampleAppPrefs *

examples/application8/exampleappwin.c

@@ -6,12 +6,7 @@
 struct _ExampleAppWindow
 {
   GtkApplicationWindow parent;
-};
 
-typedef struct _ExampleAppWindowPrivate ExampleAppWindowPrivate;
-
-struct _ExampleAppWindowPrivate
-{
   GSettings *settings;
   GtkWidget *stack;
   GtkWidget *search;
@@ -22,13 +17,12 @@ struct _ExampleAppWindowPrivate
   GtkWidget *words;
 };
 
-G_DEFINE_TYPE_WITH_PRIVATE(ExampleAppWindow, example_app_window, GTK_TYPE_APPLICATION_WINDOW);
+G_DEFINE_TYPE (ExampleAppWindow, example_app_window, GTK_TYPE_APPLICATION_WINDOW)
 
 static void
-search_text_changed (GtkEntry *entry)
+search_text_changed (GtkEntry         *entry,
+                     ExampleAppWindow *win)
 {
-  ExampleAppWindow *win;
-  ExampleAppWindowPrivate *priv;
   const gchar *text;
   GtkWidget *tab;
   GtkWidget *view;
@@ -40,10 +34,7 @@ search_text_changed (GtkEntry *entry)
   if (text[0] == '\0')
     return;
 
-  win = EXAMPLE_APP_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (entry)));
-  priv = example_app_window_get_instance_private (win);
-
-  tab = gtk_stack_get_visible_child (GTK_STACK (priv->stack));
+  tab = gtk_stack_get_visible_child (GTK_STACK (win->stack));
   view = gtk_bin_get_child (GTK_BIN (tab));
   buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 
@@ -62,19 +53,15 @@ static void
 find_word (GtkButton        *button,
            ExampleAppWindow *win)
 {
-  ExampleAppWindowPrivate *priv;
   const gchar *word;
 
-  priv = example_app_window_get_instance_private (win);
-
   word = gtk_button_get_label (button);
-  gtk_entry_set_text (GTK_ENTRY (priv->searchentry), word);
+  gtk_entry_set_text (GTK_ENTRY (win->searchentry), word);
 }
 
 static void
 update_words (ExampleAppWindow *win)
 {
-  ExampleAppWindowPrivate *priv;
   GHashTable *strings;
   GHashTableIter iter;
   GtkWidget *tab, *view, *row;
@@ -83,9 +70,7 @@ update_words (ExampleAppWindow *win)
   GList *children, *l;
   gchar *word, *key;
 
-  priv = example_app_window_get_instance_private (win);
-
-  tab = gtk_stack_get_visible_child (GTK_STACK (priv->stack));
+  tab = gtk_stack_get_visible_child (GTK_STACK (win->stack));
 
   if (tab == NULL)
     return;
@@ -113,9 +98,9 @@ update_words (ExampleAppWindow *win)
     }
 
 done:
-  children = gtk_container_get_children (GTK_CONTAINER (priv->words));
+  children = gtk_container_get_children (GTK_CONTAINER (win->words));
   for (l = children; l; l = l->next)
-    gtk_container_remove (GTK_CONTAINER (priv->words), GTK_WIDGET (l->data));
+    gtk_container_remove (GTK_CONTAINER (win->words), GTK_WIDGET (l->data));
   g_list_free (children);
 
   g_hash_table_iter_init (&iter, strings);
@@ -124,27 +109,21 @@ done:
       row = gtk_button_new_with_label (key);
       g_signal_connect (row, "clicked",
                         G_CALLBACK (find_word), win);
-      gtk_widget_show (row);
-      gtk_container_add (GTK_CONTAINER (priv->words), row);
+      gtk_container_add (GTK_CONTAINER (win->words), row);
     }
 
   g_hash_table_unref (strings);
 }
 
 static void
-visible_child_changed (GObject    *stack,
-                       GParamSpec *pspec)
+visible_child_changed (GObject          *stack,
+                       GParamSpec       *pspec,
+                       ExampleAppWindow *win)
 {
-  ExampleAppWindow *win;
-  ExampleAppWindowPrivate *priv;
-
   if (gtk_widget_in_destruction (GTK_WIDGET (stack)))
     return;
 
-  win = EXAMPLE_APP_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (stack)));
-
-  priv = example_app_window_get_instance_private (win);
-  gtk_search_bar_set_search_mode (GTK_SEARCH_BAR (priv->searchbar), FALSE);
+  gtk_search_bar_set_search_mode (GTK_SEARCH_BAR (win->searchbar), FALSE);
   update_words (win);
 }
 
@@ -159,36 +138,34 @@ words_changed (GObject          *sidebar,
 static void
 example_app_window_init (ExampleAppWindow *win)
 {
-  ExampleAppWindowPrivate *priv;
   GtkBuilder *builder;
   GMenuModel *menu;
   GAction *action;
 
-  priv = example_app_window_get_instance_private (win);
   gtk_widget_init_template (GTK_WIDGET (win));
-  priv->settings = g_settings_new ("org.gtk.exampleapp");
+  win->settings = g_settings_new ("org.gtk.exampleapp");
 
-  g_settings_bind (priv->settings, "transition",
-                   priv->stack, "transition-type",
+  g_settings_bind (win->settings, "transition",
+                   win->stack, "transition-type",
                    G_SETTINGS_BIND_DEFAULT);
 
-  g_settings_bind (priv->settings, "show-words",
-                   priv->sidebar, "reveal-child",
+  g_settings_bind (win->settings, "show-words",
+                   win->sidebar, "reveal-child",
                    G_SETTINGS_BIND_DEFAULT);
 
-  g_object_bind_property (priv->search, "active",
-                          priv->searchbar, "search-mode-enabled",
+  g_object_bind_property (win->search, "active",
+                          win->searchbar, "search-mode-enabled",
                           G_BINDING_BIDIRECTIONAL);
 
-  g_signal_connect (priv->sidebar, "notify::reveal-child",
+  g_signal_connect (win->sidebar, "notify::reveal-child",
                     G_CALLBACK (words_changed), win);
 
   builder = gtk_builder_new_from_resource ("/org/gtk/exampleapp/gears-menu.ui");
   menu = G_MENU_MODEL (gtk_builder_get_object (builder, "menu"));
-  gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (priv->gears), menu);
+  gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (win->gears), menu);
   g_object_unref (builder);
 
-  action = g_settings_create_action (priv->settings, "show-words");
+  action = g_settings_create_action (win->settings, "show-words");
   g_action_map_add_action (G_ACTION_MAP (win), action);
   g_object_unref (action);
 }
@@ -197,12 +174,10 @@ static void
 example_app_window_dispose (GObject *object)
 {
   ExampleAppWindow *win;
-  ExampleAppWindowPrivate *priv;
 
   win = EXAMPLE_APP_WINDOW (object);
-  priv = example_app_window_get_instance_private (win);
 
-  g_clear_object (&priv->settings);
+  g_clear_object (&win->settings);
 
   G_OBJECT_CLASS (example_app_window_parent_class)->dispose (object);
 }
@@ -215,13 +190,13 @@ example_app_window_class_init (ExampleAppWindowClass *class)
   gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (class),
                                                "/org/gtk/exampleapp/window.ui");
 
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, stack);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, search);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, searchbar);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, searchentry);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, gears);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, words);
-  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (class), ExampleAppWindow, sidebar);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, stack);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, search);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, searchbar);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, searchentry);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, gears);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, words);
+  gtk_widget_class_bind_template_child (GTK_WIDGET_CLASS (class), ExampleAppWindow, sidebar);
 
   gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), search_text_changed);
   gtk_widget_class_bind_template_callback (GTK_WIDGET_CLASS (class), visible_child_changed);
@@ -238,7 +213,6 @@ void
 example_app_window_open (ExampleAppWindow *win,
                          GFile            *file)
 {
-  ExampleAppWindowPrivate *priv;
   gchar *basename;
   GtkWidget *scrolled, *view;
   gchar *contents;
@@ -247,19 +221,16 @@ example_app_window_open (ExampleAppWindow *win,
   GtkTextTag *tag;
   GtkTextIter start_iter, end_iter;
 
-  priv = example_app_window_get_instance_private (win);
   basename = g_file_get_basename (file);
 
   scrolled = gtk_scrolled_window_new (NULL, NULL);
-  gtk_widget_show (scrolled);
   gtk_widget_set_hexpand (scrolled, TRUE);
   gtk_widget_set_vexpand (scrolled, TRUE);
   view = gtk_text_view_new ();
   gtk_text_view_set_editable (GTK_TEXT_VIEW (view), FALSE);
   gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (view), FALSE);
-  gtk_widget_show (view);
   gtk_container_add (GTK_CONTAINER (scrolled), view);
-  gtk_stack_add_titled (GTK_STACK (priv->stack), scrolled, basename, basename);
+  gtk_stack_add_titled (GTK_STACK (win->stack), scrolled, basename, basename);
 
   buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 
@@ -270,7 +241,7 @@ example_app_window_open (ExampleAppWindow *win,
     }
 
   tag = gtk_text_buffer_create_tag (buffer, NULL, NULL);
-  g_settings_bind (priv->settings, "font",
+  g_settings_bind (win->settings, "font",
                    tag, "font",
                    G_SETTINGS_BIND_DEFAULT);
 
@@ -280,7 +251,7 @@ example_app_window_open (ExampleAppWindow *win,
 
   g_free (basename);
 
-  gtk_widget_set_sensitive (priv->search, TRUE);
+  gtk_widget_set_sensitive (win->search, TRUE);
 
   update_words (win);
 }