path: Special-case rects and circles

Write out the commands for rects and circles in a special
way (without whitespace), and add code in the parser to
recognize this, so we can successfully round-trip these
through the SVG path format.

Tests included.

.gitlab-ci.yml

@@ -1,3 +1,7 @@
+include:
+  - project: 'gnome/citemplates'
+    file: 'flatpak/flatpak_ci_initiative.yml'
+
 stages:
   - build
   - analysis
@@ -149,6 +153,7 @@ msys2-mingw64:
   artifacts:
     paths:
       - "${APPID}-dev.flatpak"
+      - 'repo.tar'
     expire_in: 1 day
   script:
     - bash -x ./.gitlab-ci/flatpak-build.sh "${APPID}"
@@ -200,6 +205,24 @@ flatpak-master:icon-browser:
   variables:
     APPID: org.gtk.IconBrowser4
 
+# Publish the demo apps to the GNOME Nightly repo
+# https://wiki.gnome.org/Apps/Nightly
+# https://gitlab.gnome.org/GNOME/Initiatives/-/wikis/DevOps-with-Flatpak
+nightly demo:
+    extends: '.publish_nightly'
+    dependencies: ['flatpak-master:demo']
+    needs: ['flatpak-master:demo']
+
+nightly factory:
+    extends: '.publish_nightly'
+    dependencies: ['flatpak-master:widget-factory']
+    needs: ['flatpak-master:widget-factory']
+
+nightly icon-browser:
+    extends: '.publish_nightly'
+    dependencies: ['flatpak-master:icon-browser']
+    needs: ['flatpak-master:icon-browser']
+
 static-scan:
   image: $FEDORA_IMAGE
   stage: analysis

.gitlab-ci/flatpak-build.sh

@@ -40,3 +40,8 @@ flatpak build-bundle \
         ${appid}-dev.flatpak \
         --runtime-repo=https://nightly.gnome.org/gnome-nightly.flatpakrepo \
         ${appid}
+
+# to be consumed by the nightly publish jobs
+if [[ $CI_COMMIT_BRANCH == master ]]; then
+        tar cf repo.tar ${repodir}
+fi

NEWS

@@ -1,3 +1,89 @@
+Overview of Changes in 3.99.4
+=============================
+
+* GtkColumnView:
+ - Improve column resizing
+ - Make double-click reset column widths
+ - Move header outside of scrollbars
+
+* GtkSearchEntry:
+ - Add an icon
+
+* GtkDropDown:
+ - Polish the appearance
+
+* GtkColorChooser:
+ - Accessibility improvements
+
+* GtkPopoverMenu:
+ - Add accessibility support
+ - Allow custom items. This adds new API:
+   gtk_popover_menu_add/remove_child
+   gtk_popover_menu_bar_add/remove_child
+
+* GtkTextView:
+ - Fix rendering and positioning of anchored children
+ - Fix positioning of touch handles
+
+* Constraints:
+ - Fix loading constraints from ui files
+
+* Media support:
+ - Use cubic instead of linear volume
+
+* Accessibility:
+ - Implement Component for all widgets
+ - Implement Text and EditableText for all editables
+ - Rework accessible name/description computation
+ - Add documentation for app and widget developers
+ - Handle HIDDEN state changes by adding/removing elements
+ - Support setting accessibility attributes in ui files
+ - Make window controls accessible
+
+* Introspection:
+ - Add some missing annotations
+
+* gdk:
+ - Deliver events on flush
+ - Drop the unused GdkPoint struct from the API
+ - Improve popup autohide behavior
+
+* Demos:
+ - Add another constraints demo
+ - Tweak various demos to improve consistency
+ - Small accessibility improvements
+
+* Tools:
+ - Improve gtk4-builder-tool handling of various
+   widgets when converting ui files from GTK 3
+
+* Documentation:
+ - Use GtkApplication in all examples
+ - Improve and expand the widget gallery
+
+* Testsuite:
+ - Improve coverage of GDK
+ - Improve coverage of gtk4-builder-tool
+
+* Build:
+ - Fix the build with cups 2.2.12
+ - Make cloudprint support build without warnings
+
+* Broadway:
+ - Support modifiers for scroll events
+
+* Windows:
+ - Improve IME support
+
+* OS X:
+ - Fix various input issues
+ - Make GtkGLArea work (with the cairo backend)
+
+* Translation updates:
+ German
+ Polish
+
+
 Overview of Changes in 3.99.3
 =============================
 

config.h.meson

@@ -1,8 +1,9 @@
-/* config.h.in.  Generated from configure.ac by autoheader.  */
-
 /* always defined to indicate that i18n is enabled */
 #define ENABLE_NLS 1
 
+/* Use structured logging */
+#define G_LOG_STRUCTURED 1
+
 /* The prefix for our gettext translation domains. */
 #mesondefine GETTEXT_PACKAGE
 

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

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

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

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

demos/constraint-editor/constraint-editor.c

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

demos/constraint-editor/constraint-editor.ui

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

demos/gtk-demo/blendmodes.ui

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

demos/gtk-demo/builder.c

@@ -1,5 +1,5 @@
 /* Builder
- * #Keywords: GMenu, GtkPopoverMenuBar, GtkBuilder, GtkStatusBar, toolbar
+ * #Keywords: GMenu, GtkPopoverMenuBar, GtkBuilder, GtkStatusBar, GtkShortcutController, toolbar
  *
  * Demonstrates a traditional interface, loaded from a XML description,
  * and shows how to connect actions to the menu items and toolbar buttons.

demos/gtk-demo/constraints.c

@@ -1,9 +1,16 @@
-/* Constraints/Simple
+/* Constraints/Simple Constraints
  * #Keywords: GtkLayoutManager
  *
  * GtkConstraintLayout provides a layout manager that uses relations
- * between widgets (also known as "constraints") to compute the position
+ * between widgets (also known as “constraints”) to compute the position
  * and size of each child.
+ *
+ * In addition to child widgets, the constraints can involve spacer
+ * objects (also known as “guides”). This example has a guide between
+ * the two buttons in the top row.
+ *
+ * Try resizing the window to see how the constraints react to update
+ * the layout.
  */
 
 #include <glib/gi18n.h>
@@ -234,15 +241,12 @@ simple_grid_init (SimpleGrid *self)
 
   self->button1 = gtk_button_new_with_label ("Child 1");
   gtk_widget_set_parent (self->button1, widget);
-  gtk_widget_set_name (self->button1, "button1");
 
   self->button2 = gtk_button_new_with_label ("Child 2");
   gtk_widget_set_parent (self->button2, widget);
-  gtk_widget_set_name (self->button2, "button2");
 
   self->button3 = gtk_button_new_with_label ("Child 3");
   gtk_widget_set_parent (self->button3, widget);
-  gtk_widget_set_name (self->button3, "button3");
 
   GtkLayoutManager *manager = gtk_widget_get_layout_manager (GTK_WIDGET (self));
   build_constraints (self, GTK_CONSTRAINT_LAYOUT (manager));
@@ -259,7 +263,8 @@ do_constraints (GtkWidget *do_widget)
 
      window = gtk_window_new ();
      gtk_window_set_display (GTK_WINDOW (window), gtk_widget_get_display (do_widget));
-     gtk_window_set_title (GTK_WINDOW (window), "Constraints");
+     gtk_window_set_title (GTK_WINDOW (window), "Simple Constraints");
+     gtk_window_set_default_size (GTK_WINDOW (window), 260, -1);
      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
      box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);

demos/gtk-demo/constraints_builder.c

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

demos/gtk-demo/constraints_builder.ui

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

demos/gtk-demo/constraints_interactive.c

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

demos/gtk-demo/constraints_vfl.c

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

demos/gtk-demo/demo.gresource.xml

@@ -18,6 +18,9 @@
     <file>demoimage.c</file>
     <file>demoimage.h</file>
   </gresource>
+  <gresource prefix="/constraints_builder">
+    <file>constraints_builder.ui</file>
+  </gresource>
   <gresource prefix="/css_accordion">
     <file>css_accordion.css</file>
     <file>reset.css</file>
@@ -40,6 +43,11 @@
     <file>cssview.css</file>
     <file>reset.css</file>
   </gresource>
+  <gresource prefix="/dropdown">
+    <file>suggestionentry.h</file>
+    <file>suggestionentry.c</file>
+    <file>suggestionentry.css</file>
+  </gresource>
   <gresource prefix="/theming_style_classes">
     <file>theming.ui</file>
   </gresource>
@@ -205,6 +213,8 @@
     <file>demo3widget.ui</file>
   </gresource>
   <gresource prefix="/paintable_svg">
+    <file>svgpaintable.h</file>
+    <file>svgpaintable.c</file>
     <file>org.gtk.gtk4.NodeEditor.Devel.svg</file>
   </gresource>
   <gresource prefix="/shortcuts">
@@ -226,9 +236,12 @@
     <file>revealer.ui</file>
   </gresource>
   <gresource prefix="/images">
+    <file>pixbufpaintable.h</file>
+    <file>pixbufpaintable.c</file>
     <file>alphatest.png</file>
     <file>floppybuddy.gif</file>
     <file>gtk-logo.webm</file>
+    <file alias="org.gtk.Demo4.svg">data/scalable/apps/org.gtk.Demo4.svg</file>
   </gresource>
   <gresource prefix="/video-player">
     <file>bbb.png</file>
@@ -240,8 +253,9 @@
     <file>clipboard.c</file>
     <file>combobox.c</file>
     <file>constraints.c</file>
-    <file>constraints2.c</file>
-    <file>constraints3.c</file>
+    <file>constraints_interactive.c</file>
+    <file>constraints_vfl.c</file>
+    <file>constraints_builder.c</file>
     <file>css_accordion.c</file>
     <file>css_basics.c</file>
     <file>css_blendmodes.c</file>
@@ -280,7 +294,7 @@
     <file>layoutmanager2.c</file>
     <file>links.c</file>
     <file>listbox.c</file>
-    <file>listbox2.c</file>
+    <file>listbox_controls.c</file>
     <file>listview_applauncher.c</file>
     <file>listview_colors.c</file>
     <file>listview_clocks.c</file>
@@ -295,7 +309,7 @@
     <file>markup.c</file>
     <file>menu.c</file>
     <file>overlay.c</file>
-    <file>overlay2.c</file>
+    <file>overlay_decorative.c</file>
     <file>paint.c</file>
     <file>pagesetup.c</file>
     <file>paintable.c</file>
@@ -305,6 +319,9 @@
     <file>paintable_svg.c</file>
     <file>panes.c</file>
     <file>password_entry.c</file>
+    <file>path_fill.c</file>
+    <file>path_maze.c</file>
+    <file>path_text.c</file>
     <file>peg_solitaire.c</file>
     <file>pickers.c</file>
     <file>printing.c</file>
@@ -345,8 +362,8 @@
     <file>messages.txt</file>
     <file>apple-red.png</file>
   </gresource>
-  <gresource prefix="/listbox2">
-    <file>listbox2.ui</file>
+  <gresource prefix="/listbox_controls">
+    <file>listbox_controls.ui</file>
   </gresource>
   <gresource prefix="/glarea">
     <file>glarea-gl.fs.glsl</file>
@@ -389,6 +406,9 @@
   <gresource prefix="/fontrendering">
     <file>fontrendering.ui</file>
   </gresource>
+  <gresource prefix="/path_text">
+    <file>path_text.ui</file>
+  </gresource>
   <gresource prefix="/org/gtk/Demo4">
     <file>icons/16x16/actions/application-exit.png</file>
     <file>icons/16x16/actions/document-new.png</file>

demos/gtk-demo/demo.ui

@@ -83,7 +83,7 @@
   </menu>
   <object class="GtkAboutDialog" id="aboutdialog1">
     <property name="program-name" translatable="yes">Builder demo</property>
-    <property name="logo-icon-name" translatable="yes">gtk3-demo</property>
+    <property name="logo-icon-name" translatable="yes">org.gtk.Demo4</property>
     <property name="modal">True</property>
   </object>
   <object class="GtkWindow" id="window1">
@@ -96,13 +96,18 @@
         <child>
           <object class="GtkPopoverMenuBar" id="menubar1">
             <property name="menu-model">menubar</property>
+            <accessibility>
+              <property name="label">Main Menu</property>
+            </accessibility>
           </object>
         </child>
         <child>
           <object class="GtkBox" id="toolbar1">
-            <style>
-              <class name="toolbar"/>
-            </style>
+            <property name="accessible-role">toolbar</property>
+            <property name="css-classes">toolbar</property>
+            <accessibility>
+              <property name="label">Toolbar</property>
+            </accessibility>
             <child>
               <object class="GtkButton">
                 <property name="label" translatable="yes">New</property>

demos/gtk-demo/demotaggedentry.c

@@ -44,11 +44,23 @@ G_DEFINE_TYPE_WITH_CODE (DemoTaggedEntry, demo_tagged_entry, GTK_TYPE_WIDGET,
 static void
 demo_tagged_entry_init (DemoTaggedEntry *entry)
 {
+  GtkCssProvider *provider;
+
   entry->text = gtk_text_new ();
   gtk_widget_set_hexpand (entry->text, TRUE);
   gtk_widget_set_vexpand (entry->text, TRUE);
   gtk_widget_set_parent (entry->text, GTK_WIDGET (entry));
   gtk_editable_init_delegate (GTK_EDITABLE (entry));
+  gtk_editable_set_width_chars (GTK_EDITABLE (entry->text), 6);
+  gtk_editable_set_max_width_chars (GTK_EDITABLE (entry->text), 6);
+  gtk_widget_add_css_class (GTK_WIDGET (entry), "tagged");
+
+  provider = gtk_css_provider_new ();
+  gtk_css_provider_load_from_resource (provider, "/tagged_entry/tagstyle.css");
+  gtk_style_context_add_provider_for_display (gdk_display_get_default (),
+                                              GTK_STYLE_PROVIDER (provider),
+                                              800);
+  g_object_unref (provider);
 }
 
 static void
@@ -212,7 +224,6 @@ static void
 demo_tagged_entry_tag_init (DemoTaggedEntryTag *tag)
 {
   GtkGesture *gesture;
-  GtkCssProvider *provider;
 
   tag->box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
   gtk_widget_set_parent (tag->box, GTK_WIDGET (tag));
@@ -222,13 +233,6 @@ demo_tagged_entry_tag_init (DemoTaggedEntryTag *tag)
   gesture = gtk_gesture_click_new ();
   g_signal_connect (gesture, "released", G_CALLBACK (on_released), tag);
   gtk_widget_add_controller (GTK_WIDGET (tag), GTK_EVENT_CONTROLLER (gesture));
-
-  provider = gtk_css_provider_new ();
-  gtk_css_provider_load_from_resource (provider, "/tagged_entry/tagstyle.css");
-  gtk_style_context_add_provider_for_display (gdk_display_get_default (),
-                                              GTK_STYLE_PROVIDER (provider),
-                                              800);
-  g_object_unref (provider);
 }
 
 static void

demos/gtk-demo/dnd.c

@@ -113,12 +113,9 @@ apply_transform (CanvasItem *item)
   y = gtk_widget_get_allocated_height (item->label) / 2.0;
   item->r = sqrt (x*x + y*y);
 
-  transform = gsk_transform_translate (
-                 gsk_transform_rotate (
-                   gsk_transform_translate (NULL,
-                                            &(graphene_point_t) { item->r, item->r }),
-                   item->angle + item->delta),
-                 &(graphene_point_t) { - x, - y });
+  transform = gsk_transform_translate (NULL, &(graphene_point_t) { item->r, item->r });
+  transform = gsk_transform_rotate (transform, item->angle + item->delta);
+  transform = gsk_transform_translate (transform, &(graphene_point_t) { -x, -y });
 
   gtk_fixed_set_child_transform (GTK_FIXED (item->fixed), item->label, transform);
   gsk_transform_unref (transform);

demos/gtk-demo/drawingarea.c

@@ -311,6 +311,7 @@ do_drawingarea (GtkWidget *do_widget)
       gtk_window_set_display (GTK_WINDOW (window),
                               gtk_widget_get_display (do_widget));
       gtk_window_set_title (GTK_WINDOW (window), "Drawing Area");
+      gtk_window_set_default_size (GTK_WINDOW (window), 250, -1);
 
       g_signal_connect (window, "destroy",
                         G_CALLBACK (close_window), NULL);
@@ -325,9 +326,8 @@ do_drawingarea (GtkWidget *do_widget)
       /*
        * Create the groups area
        */
-      label = gtk_label_new (NULL);
-      gtk_label_set_markup (GTK_LABEL (label),
-                            "<u>Knockout groups</u>");
+      label = gtk_label_new ("Knockout groups");
+      gtk_widget_add_css_class (label, "heading");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
@@ -344,9 +344,8 @@ do_drawingarea (GtkWidget *do_widget)
        * Create the scribble area
        */
 
-      label = gtk_label_new (NULL);
-      gtk_label_set_markup (GTK_LABEL (label),
-                            "<u>Scribble area</u>");
+      label = gtk_label_new ("Scribble area");
+      gtk_widget_add_css_class (label, "heading");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);

demos/gtk-demo/dropdown.c

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

demos/gtk-demo/entry_completion.c

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

demos/gtk-demo/entry_undo.c

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

demos/gtk-demo/errorstates.c

@@ -1,4 +1,4 @@
-/* Error states
+/* Error States
  *
  * GtkLabel and GtkEntry can indicate errors if you set the .error
  * style class on them.

demos/gtk-demo/errorstates.ui

@@ -5,7 +5,7 @@
     <property name="modal">1</property>
     <property name="resizable">0</property>
     <property name="use-header-bar">1</property>
-    <property name="title" translatable="yes">Settings</property>
+    <property name="title" translatable="yes">Error States</property>
     <property name="hide-on-close">1</property>
     <child internal-child="content_area">
       <object class="GtkBox">

demos/gtk-demo/filtermodel.ui

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

demos/gtk-demo/font-features.ui

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

demos/gtk-demo/font_features.c

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

demos/gtk-demo/fontify.c

@@ -501,7 +501,7 @@ fontify (const char    *format,
   char *theme;
   gboolean prefer_dark;
   const char *style_arg;
-  const char *text;
+  char *text;
   GtkTextIter start, end;
   GBytes *bytes;
   GError *error = NULL;
@@ -553,7 +553,7 @@ fontify (const char    *format,
 
   gtk_text_buffer_get_bounds (source_buffer, &start, &end);
   text = gtk_text_buffer_get_text (source_buffer, &start, &end, TRUE);
-  bytes = g_bytes_new_static (text, strlen (text));
+  bytes = g_bytes_new_take (text, strlen (text));
 
 #ifdef HAVE_GIO_UNIX
   /* Work around https://gitlab.gnome.org/GNOME/glib/-/issues/2182 */
@@ -570,4 +570,5 @@ fontify (const char    *format,
                                   NULL,
                                   fontify_finish,
                                   g_object_ref (source_buffer));
+  g_bytes_unref (bytes);
 }

demos/gtk-demo/fontrendering.c

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

demos/gtk-demo/gltransition.c

@@ -1,4 +1,4 @@
-/* OpenGL/Transitions
+/* OpenGL/Transitions and Effects
  * #Keywords: OpenGL, shader, effect
  *
  * Create transitions between pages using a custom fragment shader.
@@ -282,11 +282,12 @@ create_gltransition_window (GtkWidget *do_widget)
 
   window = gtk_window_new ();
   gtk_window_set_display (GTK_WINDOW (window),  gtk_widget_get_display (do_widget));
-  gtk_window_set_title (GTK_WINDOW (window), "Transitions");
+  gtk_window_set_title (GTK_WINDOW (window), "Transitions and Effects");
   headerbar = gtk_header_bar_new ();
   scale = gtk_scale_new (GTK_ORIENTATION_HORIZONTAL, NULL);
   gtk_scale_set_draw_value (GTK_SCALE (scale), FALSE);
   gtk_widget_set_size_request (scale, 100, -1);
+  gtk_widget_set_tooltip_text (scale, "Transition duration");
   gtk_header_bar_pack_end (GTK_HEADER_BAR (headerbar), scale);
   gtk_window_set_titlebar (GTK_WINDOW (window), headerbar);
   gtk_window_set_default_size (GTK_WINDOW (window), 800, 600);

demos/gtk-demo/gtkfishbowl.c

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

demos/gtk-demo/iconscroll.c

@@ -13,7 +13,7 @@ static GtkWidget *window = NULL;
 static GtkWidget *scrolledwindow;
 static int selected;
 
-#define N_WIDGET_TYPES 6
+#define N_WIDGET_TYPES 7
 
 
 static int hincrement = 5;
@@ -177,6 +177,24 @@ populate_grid (void)
   gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (scrolledwindow), list);
 }
 
+extern GtkWidget *create_ucd_view (GtkWidget *label);
+
+static void
+populate_list2 (void)
+{
+  GtkWidget *list;
+
+  list = create_ucd_view (NULL);
+
+  hincrement = 0;
+  vincrement = 5;
+
+  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolledwindow),
+                                  GTK_POLICY_AUTOMATIC,
+                                  GTK_POLICY_AUTOMATIC);
+  gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (scrolledwindow), list);
+}
+
 static void
 set_widget_type (int type)
 {
@@ -216,6 +234,11 @@ set_widget_type (int type)
       break;
 
     case 5:
+      gtk_window_set_title (GTK_WINDOW (window), "Scrolling a columned list");
+      populate_list2 ();
+      break;
+
+    case 6:
       gtk_window_set_title (GTK_WINDOW (window), "Scrolling a grid");
       populate_grid ();
       break;

demos/gtk-demo/images.c

@@ -17,6 +17,7 @@
 #include <glib/gstdio.h>
 #include <stdio.h>
 #include <errno.h>
+#include "pixbufpaintable.h"
 
 static GtkWidget *window = NULL;
 static GdkPixbufLoader *pixbuf_loader = NULL;
@@ -56,6 +57,7 @@ progressive_updated_callback (GdkPixbufLoader *loader,
   picture = GTK_WIDGET (data);
 
   pixbuf = gdk_pixbuf_loader_get_pixbuf (loader);
+  gtk_picture_set_pixbuf (GTK_PICTURE (picture), NULL);
   gtk_picture_set_pixbuf (GTK_PICTURE (picture), pixbuf);
 }
 
@@ -262,7 +264,7 @@ start_progressive_loading (GtkWidget *picture)
    * The timeout simply simulates a slow data source by inserting
    * pauses in the reading process.
    */
-  load_timeout = g_timeout_add (1500, progressive_timeout, picture);
+  load_timeout = g_timeout_add (300, progressive_timeout, picture);
   g_source_set_name_by_id (load_timeout, "[gtk] progressive_timeout");
 }
 
@@ -345,9 +347,8 @@ do_images (GtkWidget *do_widget)
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
       gtk_box_append (GTK_BOX (hbox), vbox);
 
-      label = gtk_label_new (NULL);
-      gtk_label_set_markup (GTK_LABEL (label),
-                            "<u>Image loaded from a file</u>");
+      label = gtk_label_new ("Image from a resource");
+      gtk_widget_add_css_class (label, "heading");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
@@ -355,7 +356,7 @@ do_images (GtkWidget *do_widget)
       gtk_widget_set_valign (frame, GTK_ALIGN_CENTER);
       gtk_box_append (GTK_BOX (vbox), frame);
 
-      image = gtk_image_new_from_icon_name ("gtk3-demo");
+      image = gtk_image_new_from_resource ("/images/org.gtk.Demo4.svg");
       gtk_image_set_icon_size (GTK_IMAGE (image), GTK_ICON_SIZE_LARGE);
 
       gtk_frame_set_child (GTK_FRAME (frame), image);
@@ -363,9 +364,8 @@ do_images (GtkWidget *do_widget)
 
       /* Animation */
 
-      label = gtk_label_new (NULL);
-      gtk_label_set_markup (GTK_LABEL (label),
-                            "<u>Animation loaded from a file</u>");
+      label = gtk_label_new ("Animation from a resource");
+      gtk_widget_add_css_class (label, "heading");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
@@ -373,15 +373,16 @@ do_images (GtkWidget *do_widget)
       gtk_widget_set_valign (frame, GTK_ALIGN_CENTER);
       gtk_box_append (GTK_BOX (vbox), frame);
 
-      picture = gtk_picture_new_for_resource ("/images/floppybuddy.gif");
+      paintable = pixbuf_paintable_new_from_resource ("/images/floppybuddy.gif");
+      picture = gtk_picture_new_for_paintable (paintable);
+      g_object_unref (paintable);
 
       gtk_frame_set_child (GTK_FRAME (frame), picture);
 
       /* Symbolic icon */
 
-      label = gtk_label_new (NULL);
-      gtk_label_set_markup (GTK_LABEL (label),
-                            "<u>Symbolic themed icon</u>");
+      label = gtk_label_new ("Symbolic themed icon");
+      gtk_widget_add_css_class (label, "heading");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
@@ -400,9 +401,8 @@ do_images (GtkWidget *do_widget)
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
       gtk_box_append (GTK_BOX (hbox), vbox);
 
-      label = gtk_label_new (NULL);
-      gtk_label_set_markup (GTK_LABEL (label),
-                            "<u>Progressive image loading</u>");
+      label = gtk_label_new ("Progressive image loading");
+      gtk_widget_add_css_class (label, "heading");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
@@ -414,6 +414,7 @@ do_images (GtkWidget *do_widget)
        * will create the pixbuf and fill it in.
        */
       picture = gtk_picture_new ();
+      gtk_picture_set_alternative_text (GTK_PICTURE (picture), "A slowly loading image");
       gtk_frame_set_child (GTK_FRAME (frame), picture);
 
       start_progressive_loading (picture);
@@ -422,9 +423,8 @@ do_images (GtkWidget *do_widget)
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
       gtk_box_append (GTK_BOX (hbox), vbox);
 
-      label = gtk_label_new (NULL);
-      gtk_label_set_markup (GTK_LABEL (label),
-                            "<u>Displaying video</u>");
+      label = gtk_label_new ("Displaying video");
+      gtk_widget_add_css_class (label, "heading");
       gtk_box_append (GTK_BOX (vbox), label);
 
       frame = gtk_frame_new (NULL);
@@ -440,9 +440,8 @@ do_images (GtkWidget *do_widget)
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
       gtk_box_append (GTK_BOX (hbox), vbox);
 
-      label = gtk_label_new (NULL);
-      gtk_label_set_markup (GTK_LABEL (label),
-                            "<u>GtkWidgetPaintable</u>");
+      label = gtk_label_new ("GtkWidgetPaintable");
+      gtk_widget_add_css_class (label, "heading");
       gtk_box_append (GTK_BOX (vbox), label);
 
       paintable = gtk_widget_paintable_new (do_widget);

demos/gtk-demo/layoutmanager.c

@@ -34,7 +34,7 @@ do_layoutmanager (GtkWidget *parent)
       int i;
 
       window = gtk_window_new ();
-      gtk_window_set_title (GTK_WINDOW (window), "Layout Manager—Transition");
+      gtk_window_set_title (GTK_WINDOW (window), "Layout Manager — Transition");
       gtk_window_set_default_size (GTK_WINDOW (window), 600, 600);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 

demos/gtk-demo/layoutmanager2.c

@@ -170,7 +170,7 @@ do_layoutmanager2 (GtkWidget *parent)
       int i;
 
       window = gtk_window_new ();
-      gtk_window_set_title (GTK_WINDOW (window), "Layout Manager—Transformation");
+      gtk_window_set_title (GTK_WINDOW (window), "Layout Manager — Transformation");
       gtk_window_set_default_size (GTK_WINDOW (window), 600, 620);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 

demos/gtk-demo/listbox.c

@@ -1,4 +1,4 @@
-/* List Box/Complex list
+/* List Box/Complex
  *
  * GtkListBox allows lists with complicated layouts, using
  * regular widgets supporting sorting and filtering.
@@ -197,7 +197,7 @@ gtk_message_row_update (GtkMessageRow *row)
 
   if (strcmp (priv->message->sender_nick, "@GTKtoolkit") == 0)
     {
-      gtk_image_set_from_icon_name (priv->avatar_image, "gtk3-demo");
+      gtk_image_set_from_icon_name (priv->avatar_image, "org.gtk.Demo4");
       gtk_image_set_icon_size (priv->avatar_image, GTK_ICON_SIZE_LARGE);
     }
   else
@@ -349,7 +349,7 @@ do_listbox (GtkWidget *do_widget)
       window = gtk_window_new ();
       gtk_window_set_display (GTK_WINDOW (window),
                               gtk_widget_get_display (do_widget));
-      gtk_window_set_title (GTK_WINDOW (window), "List Box");
+      gtk_window_set_title (GTK_WINDOW (window), "List Box — Complex");
       gtk_window_set_default_size (GTK_WINDOW (window), 400, 600);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 

demos/gtk-demo/listbox_controls.c

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

demos/gtk-demo/listview_ucd.c

@@ -80,7 +80,7 @@ ucd_model_new (void)
   iter = g_variant_iter_new (v);
 
   store = g_list_store_new (G_TYPE_OBJECT);
-  while (g_variant_iter_next (iter, "(us)", &u, &name))
+  while (g_variant_iter_next (iter, "(u&s)", &u, &name))
     {
       if (u == 0)
         continue;
@@ -259,7 +259,7 @@ selection_changed (GObject    *object,
   gtk_label_set_label (GTK_LABEL (label), buffer);
 }
 
-static GtkWidget *
+GtkWidget *
 create_ucd_view (GtkWidget *label)
 {
   GtkWidget *cv;
@@ -273,7 +273,8 @@ create_ucd_view (GtkWidget *label)
   selection = gtk_single_selection_new (ucd_model);
   gtk_single_selection_set_autoselect (selection, TRUE);
   gtk_single_selection_set_can_unselect (selection, FALSE);
-  g_signal_connect (selection, "notify::selected", G_CALLBACK (selection_changed), label);
+  if (label)
+    g_signal_connect (selection, "notify::selected", G_CALLBACK (selection_changed), label);
 
   cv = gtk_column_view_new (GTK_SELECTION_MODEL (selection));
   gtk_column_view_set_show_column_separators (GTK_COLUMN_VIEW (cv), TRUE);
@@ -283,12 +284,14 @@ create_ucd_view (GtkWidget *label)
   g_signal_connect (factory, "bind", G_CALLBACK (bind_codepoint), NULL);
   column = gtk_column_view_column_new ("Codepoint", factory);
   gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
+  g_object_unref (column);
 
   factory = gtk_signal_list_item_factory_new ();
   g_signal_connect (factory, "setup", G_CALLBACK (setup_centered_label), NULL);
   g_signal_connect (factory, "bind", G_CALLBACK (bind_char), NULL);
   column = gtk_column_view_column_new ("Char", factory);
   gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
+  g_object_unref (column);
 
   factory = gtk_signal_list_item_factory_new ();
   g_signal_connect (factory, "setup", G_CALLBACK (setup_ellipsizing_label), NULL);
@@ -296,6 +299,7 @@ create_ucd_view (GtkWidget *label)
   column = gtk_column_view_column_new ("Name", factory);
   gtk_column_view_column_set_resizable (column, TRUE);
   gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
+  g_object_unref (column);
 
   factory = gtk_signal_list_item_factory_new ();
   g_signal_connect (factory, "setup", G_CALLBACK (setup_ellipsizing_label), NULL);
@@ -303,6 +307,7 @@ create_ucd_view (GtkWidget *label)
   column = gtk_column_view_column_new ("Type", factory);
   gtk_column_view_column_set_resizable (column, TRUE);
   gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
+  g_object_unref (column);
 
   factory = gtk_signal_list_item_factory_new ();
   g_signal_connect (factory, "setup", G_CALLBACK (setup_ellipsizing_label), NULL);
@@ -310,6 +315,7 @@ create_ucd_view (GtkWidget *label)
   column = gtk_column_view_column_new ("Break Type", factory);
   gtk_column_view_column_set_resizable (column, TRUE);
   gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
+  g_object_unref (column);
 
   factory = gtk_signal_list_item_factory_new ();
   g_signal_connect (factory, "setup", G_CALLBACK (setup_label), NULL);
@@ -317,6 +323,7 @@ create_ucd_view (GtkWidget *label)
   column = gtk_column_view_column_new ("Combining Class", factory);
   gtk_column_view_column_set_resizable (column, TRUE);
   gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
+  g_object_unref (column);
 
   factory = gtk_signal_list_item_factory_new ();
   g_signal_connect (factory, "setup", G_CALLBACK (setup_label), NULL);
@@ -324,6 +331,7 @@ create_ucd_view (GtkWidget *label)
   column = gtk_column_view_column_new ("Script", factory);
   gtk_column_view_column_set_resizable (column, TRUE);
   gtk_column_view_append_column (GTK_COLUMN_VIEW (cv), column);
+  g_object_unref (column);
 
   return cv;
 }

demos/gtk-demo/main.c

@@ -337,8 +337,8 @@ display_text (const char  *format,
 
   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));
+  text = g_bytes_get_data (bytes, &len);
+  g_assert (g_utf8_validate (text, len, NULL));
 
   textview = gtk_text_view_new ();
   gtk_text_view_set_left_margin (GTK_TEXT_VIEW (textview), 20);
@@ -354,9 +354,8 @@ display_text (const char  *format,
   gtk_text_view_set_monospace (GTK_TEXT_VIEW (textview), TRUE);
 
   buffer = gtk_text_buffer_new (NULL);
-
-  text = g_bytes_unref_to_data (bytes, &len);
   gtk_text_buffer_set_text (buffer, text, len);
+  g_bytes_unref (bytes);
 
   if (format)
     fontify (format, buffer);

demos/gtk-demo/main.ui

@@ -17,9 +17,6 @@
     </section>
   </menu>
   <object class="GtkApplicationWindow" id="window">
-    <style>
-      <class name="devel"/>
-    </style>
     <property name="default-width">800</property>
     <property name="default-height">600</property>
     <child type="titlebar">
@@ -28,14 +25,7 @@
           <object class="GtkButton">
             <property name="valign">center</property>
             <property name="action-name">win.run</property>
-            <style>
-              <class name="text-button"/>
-            </style>
-            <child>
-              <object class="GtkLabel">
-                <property name="label" translatable="yes">Run</property>
-              </object>
-            </child>
+            <property name="label" translatable="yes">Run</property>
           </object>
         </child>
         <child type="end">
@@ -43,6 +33,9 @@
             <property name="valign">center</property>
             <property name="menu-model">gear_menu</property>
             <property name="icon-name">open-menu-symbolic</property>
+            <accessibility>
+              <property name="label" translatable="yes">Primary menu</property>
+            </accessibility>
           </object>
         </child>
       </object>
@@ -51,6 +44,9 @@
       <object class="GtkBox">
         <child>
           <object class="GtkScrolledWindow">
+            <style>
+              <class name="sidebar"/>
+            </style>
             <property name="width-request">120</property>
             <property name="hscrollbar-policy">never</property>
             <property name="min-content-width">150</property>
@@ -63,7 +59,11 @@
                   <object class="GtkSearchBar" id="searchbar">
                     <property name="key-capture-widget">window</property>
                     <child>
-                      <object class="GtkSearchEntry" id="search-entry"/>
+                      <object class="GtkSearchEntry" id="search-entry">
+                        <accessibility>
+                          <relation name="controls">listview</relation>
+                        </accessibility>
+                      </object>
                     </child>
                   </object>
                 </child>
@@ -78,6 +78,10 @@
                         <property name="resource">/ui/main-listitem.ui</property>
                       </object>
                     </property>
+                    <accessibility>
+                      <property name="label" translatable="yes">Demo list</property>
+                      <relation name="controls">notebook</relation>
+                    </accessibility>
                   </object>
                 </child>
 
@@ -85,9 +89,6 @@
             </child>
           </object>
         </child>
-        <child>
-          <object class="GtkSeparator"/>
-        </child>
         <child>
           <object class="GtkNotebook" id="notebook">
             <property name="scrollable">1</property>
@@ -112,6 +113,10 @@
                         <property name="editable">0</property>
                         <property name="wrap-mode">word</property>
                         <property name="cursor-visible">0</property>
+                        <accessibility>
+                          <property name="label" translatable="yes">Info</property>
+                          <property name="description" translatable="yes">A description of the demo</property>
+                        </accessibility>
                       </object>
                     </child>
                   </object>
@@ -142,6 +147,10 @@
                         <property name="wrap-mode">word</property>
                         <property name="pixels-above-lines">2</property>
                         <property name="pixels-below-lines">2</property>
+                        <accessibility>
+                          <property name="label" translatable="yes">Source</property>
+                          <property name="description" translatable="yes">The source code of the demo</property>
+                        </accessibility>
                       </object>
                     </child>
                   </object>

demos/gtk-demo/meson.build

@@ -7,8 +7,9 @@ demos = files([
   'clipboard.c',
   'combobox.c',
   'constraints.c',
-  'constraints2.c',
-  'constraints3.c',
+  'constraints_interactive.c',
+  'constraints_vfl.c',
+  'constraints_builder.c',
   'css_accordion.c',
   'css_basics.c',
   'css_blendmodes.c',
@@ -18,7 +19,6 @@ demos = files([
   'cursors.c',
   'dialog.c',
   'drawingarea.c',
-  'dropdown.c',
   'dnd.c',
   'editable_cells.c',
   'entry_completion.c',
@@ -44,7 +44,7 @@ demos = files([
   'layoutmanager2.c',
   'links.c',
   'listbox.c',
-  'listbox2.c',
+  'listbox_controls.c',
   'menu.c',
   'flowbox.c',
   'list_store.c',
@@ -53,12 +53,14 @@ demos = files([
   'listview_colors.c',
   'listview_filebrowser.c',
   'listview_minesweeper.c',
+  'dropdown.c',
   'listview_settings.c',
+  'listview_ucd.c',
   'listview_weather.c',
   'listview_words.c',
   'markup.c',
   'overlay.c',
-  'overlay2.c',
+  'overlay_decorative.c',
   'paint.c',
   'paintable.c',
   'paintable_animated.c',
@@ -66,6 +68,9 @@ demos = files([
   'paintable_mediastream.c',
   'panes.c',
   'password_entry.c',
+  'path_fill.c',
+  'path_maze.c',
+  'path_text.c',
   'peg_solitaire.c',
   'pickers.c',
   'printing.c',
@@ -118,11 +123,15 @@ extra_demo_sources = files(['main.c',
                             'singular_value_decomposition.c',
                             'four_point_transform.c',
                             'demo2widget.c',
-                            'demo3widget.c'])
+                            'demo3widget.c',
+                            'pixbufpaintable.c',
+                            'script-names.c',
+                            'unicode-names.c',
+                            'suggestionentry.c'])
 
 if harfbuzz_dep.found() and pangoft_dep.found()
-  demos += files(['font_features.c', 'listview_ucd.c'])
-  extra_demo_sources += files(['script-names.c', 'language-names.c', 'unicode-names.c'])
+  demos += files(['font_features.c'])
+  extra_demo_sources += files(['language-names.c'])
   gtkdemo_deps += [ harfbuzz_dep, epoxy_dep ]
 endif
 
@@ -134,6 +143,7 @@ librsvg_dep = dependency('librsvg-2.0', version: '>= 2.46.0', required: false)
 
 if librsvg_dep.found()
   demos += files('paintable_svg.c')
+  extra_demo_sources += files(['svgpaintable.c'])
   gtkdemo_deps += [ librsvg_dep ]
 endif
 

demos/gtk-demo/overlay_decorative.c

@@ -21,7 +21,7 @@ margin_changed (GtkAdjustment *adjustment,
 }
 
 GtkWidget *
-do_overlay2 (GtkWidget *do_widget)
+do_overlay_decorative (GtkWidget *do_widget)
 {
   static GtkWidget *window = NULL;
 

demos/gtk-demo/paintable.c

@@ -1,4 +1,4 @@
-/* Paintable/A simple paintable
+/* Paintable/Simple Paintable
  *
  * GdkPaintable is an interface used by GTK for drawings of any sort
  * that do not require layouting or positioning.

demos/gtk-demo/paintable_animated.c

@@ -1,4 +1,4 @@
-/* Paintable/An animated paintable
+/* Paintable/Animated Paintable
  *
  * GdkPaintable also allows paintables to change.
  *

demos/gtk-demo/paintable_emblem.c

@@ -153,7 +153,7 @@ do_paintable_emblem (GtkWidget *do_widget)
       window = gtk_window_new ();
       gtk_window_set_display (GTK_WINDOW (window),
                               gtk_widget_get_display (do_widget));
-      gtk_window_set_title (GTK_WINDOW (window), "Emblems");
+      gtk_window_set_title (GTK_WINDOW (window), "Paintable — Emblems");
       gtk_window_set_default_size (GTK_WINDOW (window), 300, 200);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 

demos/gtk-demo/paintable_mediastream.c

@@ -1,4 +1,4 @@
-/* Paintable/A media stream
+/* Paintable/Media Stream
  *
  * GdkPaintable is also used by the GtkMediaStream class.
  *

demos/gtk-demo/paintable_svg.c

@@ -9,183 +9,20 @@
 #include <gtk/gtk.h>
 #include <librsvg/rsvg.h>
 
-#define SVG_TYPE_PAINTABLE (svg_paintable_get_type ())
+#include "svgpaintable.h"
 
-G_DECLARE_FINAL_TYPE (SvgPaintable, svg_paintable, SVG, PAINTABLE, GObject)
-
-struct _SvgPaintable
-{
-  GObject parent_instance;
-  GFile *file;
-  RsvgHandle *handle;
-};
-
-struct _SvgPaintableClass
-{
-  GObjectClass parent_class;
-};
-
-enum {
-  PROP_FILE = 1,
-  NUM_PROPERTIES
-};
-
-static void
-svg_paintable_snapshot (GdkPaintable *paintable,
-                        GdkSnapshot  *snapshot,
-                        double        width,
-                        double        height)
-{
-  SvgPaintable *self = SVG_PAINTABLE (paintable);
-  cairo_t *cr;
-  GError *error = NULL;
-
-  cr = gtk_snapshot_append_cairo (GTK_SNAPSHOT (snapshot),
-                                  &GRAPHENE_RECT_INIT (0, 0, width, height));
-
-  if (!rsvg_handle_render_document (self->handle, cr,
-                                    &(RsvgRectangle) {0, 0, width, height},
-                                    &error))
-    {
-      g_error ("%s", error->message);
-    }
-
-  cairo_destroy (cr);
-}
-
-static int
-svg_paintable_get_intrinsic_width (GdkPaintable *paintable)
-{
-  SvgPaintable *self = SVG_PAINTABLE (paintable);
-  RsvgDimensionData data;
-
-  rsvg_handle_get_dimensions (self->handle, &data);
-
-  return data.width;
-}
-
-static int
-svg_paintable_get_intrinsic_height (GdkPaintable *paintable)
-{
-  SvgPaintable *self = SVG_PAINTABLE (paintable);
-  RsvgDimensionData data;
-
-  rsvg_handle_get_dimensions (self->handle, &data);
-
-  return data.height;
-}
-
-static void
-svg_paintable_init_interface (GdkPaintableInterface *iface)
-{
-  iface->snapshot = svg_paintable_snapshot;
-  iface->get_intrinsic_width = svg_paintable_get_intrinsic_width;
-  iface->get_intrinsic_height = svg_paintable_get_intrinsic_height;
-}
-
-G_DEFINE_TYPE_WITH_CODE (SvgPaintable, svg_paintable, G_TYPE_OBJECT,
-                         G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
-                                                svg_paintable_init_interface))
-
-static void
-svg_paintable_init (SvgPaintable *self)
-{
-}
-
-static void
-svg_paintable_dispose (GObject *object)
-{
-  SvgPaintable *self = SVG_PAINTABLE (object);
-
-  g_clear_object (&self->file);
-  g_clear_object (&self->handle);
-
-  G_OBJECT_CLASS (svg_paintable_parent_class)->dispose (object);
-}
-
-static void
-svg_paintable_set_property (GObject      *object,
-                            guint         prop_id,
-                            const GValue *value,
-                            GParamSpec   *pspec)
-{
-  SvgPaintable *self = SVG_PAINTABLE (object);
-
-  switch (prop_id)
-    {
-    case PROP_FILE:
-      {
-        GFile *file = g_value_get_object (value);
-        RsvgHandle *handle = rsvg_handle_new_from_gfile_sync (file,
-                                                              RSVG_HANDLE_FLAGS_NONE,
-                                                              NULL,
-                                                              NULL);
-        rsvg_handle_set_dpi (handle, 90);
-
-        g_set_object (&self->file, file);
-        g_set_object (&self->handle, handle);
-      }
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-    }
-}
-
-static void
-svg_paintable_get_property (GObject    *object,
-                            guint       prop_id,
-                            GValue     *value,
-                            GParamSpec *pspec)
-{
-  SvgPaintable *self = SVG_PAINTABLE (object);
-
-  switch (prop_id)
-    {
-    case PROP_FILE:
-      g_value_set_object (value, self->file);
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-    }
-}
-
-
-static void
-svg_paintable_class_init (SvgPaintableClass *class)
-{
-  GObjectClass *object_class = G_OBJECT_CLASS (class);
-
-  object_class->dispose = svg_paintable_dispose;
-  object_class->set_property = svg_paintable_set_property;
-  object_class->get_property = svg_paintable_get_property;
-
-  g_object_class_install_property (object_class, PROP_FILE,
-                                   g_param_spec_object ("file", "File", "File",
-                                                        G_TYPE_FILE,
-                                                        G_PARAM_READWRITE));
-}
-
-static SvgPaintable *
-svg_paintable_new (GFile *file)
-{
-  return g_object_new (SVG_TYPE_PAINTABLE,
-                       "file", file,
-                       NULL);
-}
 
 static void
 file_set (GtkFileChooserButton *button,
           GtkWidget            *picture)
 {
   GFile *file;
-  SvgPaintable *paintable;
+  GdkPaintable *paintable;
 
   file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (button));
 
   paintable = svg_paintable_new (file);
-  gtk_picture_set_paintable (GTK_PICTURE (picture), GDK_PAINTABLE (paintable));
+  gtk_picture_set_paintable (GTK_PICTURE (picture), paintable);
 
   g_object_unref (paintable);
   g_object_unref (file);
@@ -201,14 +38,15 @@ do_paintable_svg (GtkWidget *do_widget)
   GtkFileFilter *filter;
   GtkWidget *button;
   GFile *file;
-  SvgPaintable *paintable;
+  GdkPaintable *paintable;
 
   if (!window)
     {
       window = gtk_window_new ();
       header = gtk_header_bar_new ();
       gtk_window_set_titlebar (GTK_WINDOW (window), header);
-      gtk_window_set_default_size (GTK_WINDOW (window), 300, 200);
+      gtk_window_set_default_size (GTK_WINDOW (window), 330, 330);
+      gtk_window_set_title (GTK_WINDOW (window), "Paintable — SVG");
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
       button = gtk_file_chooser_button_new ("Select an SVG file", GTK_FILE_CHOOSER_ACTION_OPEN);
@@ -227,7 +65,7 @@ do_paintable_svg (GtkWidget *do_widget)
 
       file = g_file_new_for_uri ("resource:///paintable_svg/org.gtk.gtk4.NodeEditor.Devel.svg");
       paintable = svg_paintable_new (file);
-      gtk_picture_set_paintable (GTK_PICTURE (picture), GDK_PAINTABLE (paintable));
+      gtk_picture_set_paintable (GTK_PICTURE (picture), paintable);
       g_object_unref (paintable);
       g_object_unref (file);
     }

demos/gtk-demo/panes.c

@@ -3,100 +3,16 @@
  * The GtkPaned Widget divides its content area into two panes
  * with a divider in between that the user can adjust. A separate
  * child is placed into each pane. GtkPaned widgets can be split
- * horizontally or vertially.
+ * horizontally or vertically. This test contains both a horizontal
+ * and a vertical GtkPaned widget.
  *
  * There are a number of options that can be set for each pane.
- * This test contains both a horizontal and a vertical GtkPaned
- * widget, and allows you to adjust the options for each side of
- * each widget.
+ * You can use the Inspector to adjust the options for each side
+ * of each widget.
  */
 
 #include <gtk/gtk.h>
 
-static void
-toggle_resize (GtkWidget *widget,
-               GtkWidget *child)
-{
-  GtkWidget *parent;
-  GtkPaned *paned;
-
-  parent = gtk_widget_get_parent (child);
-  paned = GTK_PANED (parent);
-
-  if (child == gtk_paned_get_start_child (paned))
-    gtk_paned_set_resize_start_child (paned, !gtk_paned_get_resize_start_child (paned));
-  else
-    gtk_paned_set_resize_end_child (paned, !gtk_paned_get_resize_end_child (paned));
-}
-
-static void
-toggle_shrink (GtkWidget *widget,
-               GtkWidget *child)
-{
-  GtkWidget *parent;
-  GtkPaned *paned;
-
-  parent = gtk_widget_get_parent (child);
-  paned = GTK_PANED (parent);
-
-  if (child == gtk_paned_get_start_child (paned))
-    gtk_paned_set_shrink_start_child (paned, !gtk_paned_get_shrink_start_child (paned));
-  else
-    gtk_paned_set_shrink_end_child (paned, !gtk_paned_get_shrink_end_child (paned));
-}
-
-static GtkWidget *
-create_pane_options (GtkPaned    *paned,
-                     const char *frame_label,
-                     const char *label1,
-                     const char *label2)
-{
-  GtkWidget *child1, *child2;
-  GtkWidget *frame;
-  GtkWidget *table;
-  GtkWidget *label;
-  GtkWidget *check_button;
-
-  child1 = gtk_paned_get_start_child (paned);
-  child2 = gtk_paned_get_end_child (paned);
-
-  frame = gtk_frame_new (frame_label);
-
-  table = gtk_grid_new ();
-  gtk_frame_set_child (GTK_FRAME (frame), table);
-
-  label = gtk_label_new (label1);
-  gtk_grid_attach (GTK_GRID (table), label, 0, 0, 1, 1);
-
-  check_button = gtk_check_button_new_with_mnemonic ("_Resize");
-  gtk_grid_attach (GTK_GRID (table), check_button, 0, 1, 1, 1);
-  g_signal_connect (check_button, "toggled",
-                    G_CALLBACK (toggle_resize), child1);
-
-  check_button = gtk_check_button_new_with_mnemonic ("_Shrink");
-  gtk_grid_attach (GTK_GRID (table), check_button, 0, 2, 1, 1);
-  gtk_check_button_set_active (GTK_CHECK_BUTTON (check_button), TRUE);
-  g_signal_connect (check_button, "toggled",
-                    G_CALLBACK (toggle_shrink), child1);
-
-  label = gtk_label_new (label2);
-  gtk_grid_attach (GTK_GRID (table), label, 1, 0, 1, 1);
-
-  check_button = gtk_check_button_new_with_mnemonic ("_Resize");
-  gtk_grid_attach (GTK_GRID (table), check_button, 1, 1, 1, 1);
-  gtk_check_button_set_active (GTK_CHECK_BUTTON (check_button), TRUE);
-  g_signal_connect (check_button, "toggled",
-                    G_CALLBACK (toggle_resize), child2);
-
-  check_button = gtk_check_button_new_with_mnemonic ("_Shrink");
-  gtk_grid_attach (GTK_GRID (table), check_button, 1, 2, 1, 1);
-  gtk_check_button_set_active (GTK_CHECK_BUTTON (check_button), TRUE);
-  g_signal_connect (check_button, "toggled",
-                    G_CALLBACK (toggle_shrink), child2);
-
-  return frame;
-}
-
 GtkWidget *
 do_panes (GtkWidget *do_widget)
 {
@@ -104,19 +20,19 @@ do_panes (GtkWidget *do_widget)
   GtkWidget *frame;
   GtkWidget *hpaned;
   GtkWidget *vpaned;
-  GtkWidget *button;
+  GtkWidget *label;
   GtkWidget *vbox;
-  GtkWidget *box;
 
   if (!window)
     {
       window = gtk_window_new ();
+      gtk_window_set_title (GTK_WINDOW (window), "Paned Widgets");
+      gtk_window_set_default_size (GTK_WINDOW (window), 330, 250);
+      gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
       gtk_window_set_display (GTK_WINDOW (window),
                               gtk_widget_get_display (do_widget));
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
-      gtk_window_set_title (GTK_WINDOW (window), "Paned Widgets");
-
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
       gtk_widget_set_margin_start (vbox, 8);
       gtk_widget_set_margin_end (vbox, 8);
@@ -132,41 +48,37 @@ do_panes (GtkWidget *do_widget)
 
       hpaned = gtk_paned_new (GTK_ORIENTATION_HORIZONTAL);
       gtk_paned_set_start_child (GTK_PANED (vpaned), hpaned);
+      gtk_paned_set_shrink_start_child (GTK_PANED (vpaned), FALSE);
 
-      box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
-      gtk_widget_set_size_request (box, 60, 60);
-      gtk_paned_set_start_child (GTK_PANED (hpaned), box);
+      label = gtk_label_new ("Hi there");
+      gtk_widget_set_margin_start (label, 4);
+      gtk_widget_set_margin_end (label, 4);
+      gtk_widget_set_margin_top (label, 4);
+      gtk_widget_set_margin_bottom (label, 4);
+      gtk_widget_set_hexpand (label, TRUE);
+      gtk_widget_set_vexpand (label, TRUE);
+      gtk_paned_set_start_child (GTK_PANED (hpaned), label);
+      gtk_paned_set_shrink_start_child (GTK_PANED (hpaned), FALSE);
 
-      button = gtk_button_new_with_mnemonic ("_Hi there");
-      gtk_widget_set_margin_start (button, 4);
-      gtk_widget_set_margin_end (button, 4);
-      gtk_widget_set_margin_top (button, 4);
-      gtk_widget_set_margin_bottom (button, 4);
-      gtk_widget_set_hexpand (button, TRUE);
-      gtk_widget_set_vexpand (button, TRUE);
-      gtk_box_append (GTK_BOX (box), button);
+      label = gtk_label_new ("Hello");
+      gtk_widget_set_margin_start (label, 4);
+      gtk_widget_set_margin_end (label, 4);
+      gtk_widget_set_margin_top (label, 4);
+      gtk_widget_set_margin_bottom (label, 4);
+      gtk_widget_set_hexpand (label, TRUE);
+      gtk_widget_set_vexpand (label, TRUE);
+      gtk_paned_set_end_child (GTK_PANED (hpaned), label);
+      gtk_paned_set_shrink_end_child (GTK_PANED (hpaned), FALSE);
 
-      box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
-      gtk_widget_set_size_request (box, 80, 60);
-      gtk_paned_set_end_child (GTK_PANED (hpaned), box);
-
-      box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
-      gtk_widget_set_size_request (box, 60, 80);
-      gtk_paned_set_end_child (GTK_PANED (vpaned), box);
-
-      /* Now create toggle buttons to control sizing */
-
-      gtk_box_append (GTK_BOX (vbox),
-                          create_pane_options (GTK_PANED (hpaned),
-                                               "Horizontal",
-                                               "Left",
-                                               "Right"));
-
-      gtk_box_append (GTK_BOX (vbox),
-                          create_pane_options (GTK_PANED (vpaned),
-                                               "Vertical",
-                                               "Top",
-                                               "Bottom"));
+      label = gtk_label_new ("Goodbye");
+      gtk_widget_set_margin_start (label, 4);
+      gtk_widget_set_margin_end (label, 4);
+      gtk_widget_set_margin_top (label, 4);
+      gtk_widget_set_margin_bottom (label, 4);
+      gtk_widget_set_hexpand (label, TRUE);
+      gtk_widget_set_vexpand (label, TRUE);
+      gtk_paned_set_end_child (GTK_PANED (vpaned), label);
+      gtk_paned_set_shrink_end_child (GTK_PANED (vpaned), FALSE);
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/path_fill.c

@@ -0,0 +1,303 @@
+/* Path/Fill
+ *
+ * This demo shows how to use PangoCairo to draw text with more than
+ * just a single color.
+ */
+
+#include <glib/gi18n.h>
+#include <gtk/gtk.h>
+
+#include "paintable.h"
+
+#define GTK_TYPE_PATH_PAINTABLE (gtk_path_paintable_get_type ())
+G_DECLARE_FINAL_TYPE (GtkPathPaintable, gtk_path_paintable, GTK, PATH_PAINTABLE, GObject)
+
+struct _GtkPathPaintable
+{
+  GObject parent_instance;
+
+  int width;
+  int height;
+  GskPath *path;
+  GdkPaintable *background;
+};
+
+struct _GtkPathPaintableClass
+{
+  GObjectClass parent_class;
+};
+
+static int
+gtk_path_paintable_get_intrinsic_width (GdkPaintable *paintable)
+{
+  GtkPathPaintable *self = GTK_PATH_PAINTABLE (paintable);
+
+  if (self->background)
+    return MAX (gdk_paintable_get_intrinsic_width (self->background), self->width);
+  else
+    return self->width;
+}
+
+static int
+gtk_path_paintable_get_intrinsic_height (GdkPaintable *paintable)
+{
+  GtkPathPaintable *self = GTK_PATH_PAINTABLE (paintable);
+
+  if (self->background)
+    return MAX (gdk_paintable_get_intrinsic_height (self->background), self->height);
+  else
+    return self->height;
+}
+
+static void
+gtk_path_paintable_snapshot (GdkPaintable *paintable,
+                             GdkSnapshot  *snapshot,
+                             double        width,
+                             double        height)
+{
+  GtkPathPaintable *self = GTK_PATH_PAINTABLE (paintable);
+
+#if 0
+  gtk_snapshot_push_fill (snapshot, self->path, GSK_FILL_RULE_WINDING);
+#else
+  GskStroke *stroke = gsk_stroke_new (4.0);
+  gtk_snapshot_push_stroke (snapshot, self->path, stroke);
+  gsk_stroke_free (stroke);
+#endif
+
+  if (self->background)
+    {
+      gdk_paintable_snapshot (self->background, snapshot, width, height);
+    }
+  else
+    {
+      gtk_snapshot_append_linear_gradient (snapshot,
+                                           &GRAPHENE_RECT_INIT (0, 0, width, height),
+                                           &GRAPHENE_POINT_INIT (0, 0),
+                                           &GRAPHENE_POINT_INIT (width, height),
+                                           (GskColorStop[8]) {
+                                             { 0.0, { 1.0, 0.0, 0.0, 1.0 } },
+                                             { 0.2, { 1.0, 0.0, 0.0, 1.0 } },
+                                             { 0.3, { 1.0, 1.0, 0.0, 1.0 } },
+                                             { 0.4, { 0.0, 1.0, 0.0, 1.0 } },
+                                             { 0.6, { 0.0, 1.0, 1.0, 1.0 } },
+                                             { 0.7, { 0.0, 0.0, 1.0, 1.0 } },
+                                             { 0.8, { 1.0, 0.0, 1.0, 1.0 } },
+                                             { 1.0, { 1.0, 0.0, 1.0, 1.0 } }
+                                           },
+                                           8);
+    }
+
+  gtk_snapshot_pop (snapshot);
+
+}
+
+static GdkPaintableFlags
+gtk_path_paintable_get_flags (GdkPaintable *paintable)
+{
+  GtkPathPaintable *self = GTK_PATH_PAINTABLE (paintable);
+
+  if (self->background)
+    return gdk_paintable_get_flags (self->background);
+  else
+    return GDK_PAINTABLE_STATIC_CONTENTS | GDK_PAINTABLE_STATIC_SIZE;
+}
+
+static void
+gtk_path_paintable_paintable_init (GdkPaintableInterface *iface)
+{
+  iface->get_intrinsic_width = gtk_path_paintable_get_intrinsic_width;
+  iface->get_intrinsic_height = gtk_path_paintable_get_intrinsic_height;
+  iface->snapshot = gtk_path_paintable_snapshot;
+  iface->get_flags = gtk_path_paintable_get_flags;
+}
+
+/* When defining the GType, we need to implement the GdkPaintable interface */
+G_DEFINE_TYPE_WITH_CODE (GtkPathPaintable, gtk_path_paintable, G_TYPE_OBJECT,
+                         G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
+                                                gtk_path_paintable_paintable_init))
+
+/* Here's the boilerplate for the GObject declaration.
+ * We don't need to do anything special here, because we keep no
+ * data of our own.
+ */
+static void
+gtk_path_paintable_class_init (GtkPathPaintableClass *klass)
+{
+}
+
+static void
+gtk_path_paintable_init (GtkPathPaintable *self)
+{
+}
+
+/* And finally, we add a simple constructor.
+ * It is declared in the header so that the other examples
+ * can use it.
+ */
+GdkPaintable *
+gtk_path_paintable_new (GskPath      *path,
+                        GdkPaintable *background,
+                        int           width,
+                        int           height)
+{
+  GtkPathPaintable *self;
+
+  self = g_object_new (GTK_TYPE_PATH_PAINTABLE, NULL);
+  self->path = path;
+  self->background = background;
+  if (self->background)
+    {
+      g_signal_connect_swapped (self->background, "invalidate-contents", G_CALLBACK (gdk_paintable_invalidate_contents), self);
+      g_signal_connect_swapped (self->background, "invalidate-size", G_CALLBACK (gdk_paintable_invalidate_size), self);
+    }
+  self->width = width;
+  self->height = height;
+
+  return GDK_PAINTABLE (self);
+}
+
+void
+gtk_path_paintable_set_path (GtkPathPaintable *self,
+                             GskPath          *path)
+{
+  g_clear_pointer (&self->path, gsk_path_unref);
+  self->path = gsk_path_ref (path);
+
+  gdk_paintable_invalidate_contents (GDK_PAINTABLE (self));
+}
+
+static GskPath *
+create_hexagon (GtkWidget *widget)
+{
+  GskPathBuilder *builder;
+
+  builder = gsk_path_builder_new ();
+
+  gsk_path_builder_move_to (builder, 120, 0);
+  gsk_path_builder_line_to (builder, 360, 0);
+  gsk_path_builder_line_to (builder, 480, 208);
+  gsk_path_builder_line_to (builder, 360, 416);
+  gsk_path_builder_line_to (builder, 120, 416);
+  gsk_path_builder_line_to (builder, 0, 208);
+  gsk_path_builder_close (builder);
+
+  return gsk_path_builder_free_to_path (builder);
+}
+
+static GskPath *
+create_path_from_text (GtkWidget *widget)
+{
+  cairo_surface_t *surface;
+  cairo_t *cr;
+  cairo_path_t *path;
+  PangoLayout *layout;
+  PangoFontDescription *desc;
+  GskPath *result;
+
+  surface = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL);
+  cr = cairo_create (surface);
+
+  layout = gtk_widget_create_pango_layout (widget, "Pango power!\nPango power!\nPango power!");
+  desc = pango_font_description_from_string ("sans bold 36");
+  pango_layout_set_font_description (layout, desc);
+  pango_font_description_free (desc);
+
+  pango_cairo_layout_path (cr, layout);
+  path = cairo_copy_path_flat (cr);
+  result = gsk_path_new_from_cairo (path);
+
+  cairo_path_destroy (path);
+  g_object_unref (layout);
+  cairo_destroy (cr);
+  cairo_surface_destroy (surface);
+
+  return result;
+}
+
+static gboolean
+update_path (GtkWidget     *widget,
+             GdkFrameClock *frame_clock,
+             gpointer       measure)
+{
+  float progress = gdk_frame_clock_get_frame_time (frame_clock) % (60 * G_USEC_PER_SEC) / (float) (30 * G_USEC_PER_SEC);
+  GskPathBuilder *builder;
+  GskPath *path;
+  graphene_point_t pos;
+  graphene_vec2_t tangent;
+
+  builder = gsk_path_builder_new ();
+  gsk_path_measure_add_segment (measure,
+                                builder,
+                                progress > 1 ? (progress - 1) * gsk_path_measure_get_length (measure) : 0.0,
+                                (progress < 1 ? progress : 1.0) * gsk_path_measure_get_length (measure));
+
+  gsk_path_measure_get_point (measure,
+                              (progress > 1 ? (progress - 1) : progress) * gsk_path_measure_get_length (measure),
+                              &pos,
+                              &tangent);
+  gsk_path_builder_move_to (builder, pos.x + 5 * graphene_vec2_get_x (&tangent), pos.y + 5 * graphene_vec2_get_y (&tangent));
+  gsk_path_builder_line_to (builder, pos.x + 3 * graphene_vec2_get_y (&tangent), pos.y + 3 * graphene_vec2_get_x (&tangent));
+  gsk_path_builder_line_to (builder, pos.x - 3 * graphene_vec2_get_y (&tangent), pos.y - 3 * graphene_vec2_get_x (&tangent));
+  gsk_path_builder_close (builder);
+  path = gsk_path_builder_free_to_path (builder);
+
+  gtk_path_paintable_set_path (GTK_PATH_PAINTABLE (gtk_picture_get_paintable (GTK_PICTURE (widget))),
+                               path);
+  gsk_path_unref (path);
+
+  return G_SOURCE_CONTINUE;
+}
+
+GtkWidget *
+do_path_fill (GtkWidget *do_widget)
+{
+  static GtkWidget *window = NULL;
+
+  if (!window)
+    {
+      GtkWidget *picture;
+      GdkPaintable *paintable;
+      GtkMediaStream *stream;
+      GskPath *path;
+      graphene_rect_t bounds;
+      GskPathMeasure *measure;
+
+      window = gtk_window_new ();
+      gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
+      gtk_window_set_title (GTK_WINDOW (window), "Path Fill");
+      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
+
+#if 0
+      stream = gtk_media_file_new_for_resource ("/images/gtk-logo.webm");
+#else
+      stream = gtk_nuclear_media_stream_new ();
+#endif
+      gtk_media_stream_play (stream);
+      gtk_media_stream_set_loop (stream, TRUE);
+
+      path = create_hexagon (window);
+      path = create_path_from_text (window);
+      gsk_path_get_bounds (path, &bounds);
+
+      paintable = gtk_path_paintable_new (path,
+                                          GDK_PAINTABLE (stream),
+                                          bounds.origin.x + bounds.size.width,
+                                          bounds.origin.y + bounds.size.height);
+      picture = gtk_picture_new_for_paintable (paintable);
+      measure = gsk_path_measure_new (path);
+      gtk_widget_add_tick_callback (picture, update_path, measure, (GDestroyNotify) gsk_path_measure_unref);
+      gtk_picture_set_keep_aspect_ratio (GTK_PICTURE (picture), FALSE);
+      gtk_picture_set_can_shrink (GTK_PICTURE (picture), FALSE);
+      g_object_unref (paintable);
+
+      gtk_window_set_child (GTK_WINDOW (window), picture);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_window_destroy (GTK_WINDOW (window));
+
+  return window;
+}

demos/gtk-demo/path_maze.c

@@ -0,0 +1,338 @@
+/* Path/Maze
+ *
+ * This demo shows how to use a GskPath to create a maze and use
+ * gsk_path_measure_get_closest_point() to check the mouse stays
+ * on the path.
+ *
+ * It also shows off the performance of GskPath (or not) as this
+ * is a rather complex path.
+ */
+
+#include <glib/gi18n.h>
+#include <gtk/gtk.h>
+
+#include "paintable.h"
+
+#define MAZE_GRID_SIZE 20
+#define MAZE_STROKE_SIZE_ACTIVE (MAZE_GRID_SIZE - 4)
+#define MAZE_STROKE_SIZE_INACTIVE (MAZE_GRID_SIZE - 12)
+#define MAZE_WIDTH 31
+#define MAZE_HEIGHT 21
+
+#define GTK_TYPE_MAZE (gtk_maze_get_type ())
+G_DECLARE_FINAL_TYPE (GtkMaze, gtk_maze, GTK, MAZE, GtkWidget)
+
+struct _GtkMaze
+{
+  GtkWidget parent_instance;
+
+  int width;
+  int height;
+  GskPath *path;
+  GskPathMeasure *measure;
+  GdkPaintable *background;
+
+  gboolean active;
+};
+
+struct _GtkMazeClass
+{
+  GtkWidgetClass parent_class;
+};
+
+G_DEFINE_TYPE (GtkMaze, gtk_maze, GTK_TYPE_WIDGET)
+
+static void
+gtk_maze_measure (GtkWidget      *widget,
+                  GtkOrientation  orientation,
+                  int             for_size,
+                  int            *minimum,
+                  int            *natural,
+                  int            *minimum_baseline,
+                  int            *natural_baseline)
+{
+  GtkMaze *self = GTK_MAZE (widget);
+
+  if (orientation == GTK_ORIENTATION_HORIZONTAL)
+    *minimum = *natural = self->width;
+  else
+    *minimum = *natural = self->height;
+}
+
+static void
+gtk_maze_snapshot (GtkWidget   *widget,
+                   GdkSnapshot *snapshot)
+{
+  GtkMaze *self = GTK_MAZE (widget);
+  double width = gtk_widget_get_width (widget);
+  double height = gtk_widget_get_height (widget);
+  GskStroke *stroke;
+
+  stroke = gsk_stroke_new (MAZE_STROKE_SIZE_INACTIVE);
+  if (self->active)
+    gsk_stroke_set_line_width (stroke, MAZE_STROKE_SIZE_ACTIVE);
+  gsk_stroke_set_line_join (stroke, GSK_LINE_JOIN_ROUND);
+  gsk_stroke_set_line_cap (stroke, GSK_LINE_CAP_ROUND);
+  gtk_snapshot_push_stroke (snapshot, self->path, stroke);
+  gsk_stroke_free (stroke);
+
+  if (self->background)
+    {
+      gdk_paintable_snapshot (self->background, snapshot, width, height);
+    }
+  else
+    {
+      gtk_snapshot_append_linear_gradient (snapshot,
+                                           &GRAPHENE_RECT_INIT (0, 0, width, height),
+                                           &GRAPHENE_POINT_INIT (0, 0),
+                                           &GRAPHENE_POINT_INIT (width, height),
+                                           (GskColorStop[8]) {
+                                             { 0.0, { 1.0, 0.0, 0.0, 1.0 } },
+                                             { 0.2, { 1.0, 0.0, 0.0, 1.0 } },
+                                             { 0.3, { 1.0, 1.0, 0.0, 1.0 } },
+                                             { 0.4, { 0.0, 1.0, 0.0, 1.0 } },
+                                             { 0.6, { 0.0, 1.0, 1.0, 1.0 } },
+                                             { 0.7, { 0.0, 0.0, 1.0, 1.0 } },
+                                             { 0.8, { 1.0, 0.0, 1.0, 1.0 } },
+                                             { 1.0, { 1.0, 0.0, 1.0, 1.0 } }
+                                           },
+                                           8);
+    }
+
+  gtk_snapshot_pop (snapshot);
+
+}
+
+static void
+gtk_maze_dispose (GObject *object)
+{
+  GtkMaze *self = GTK_MAZE (object);
+
+  g_clear_pointer (&self->path, gsk_path_unref);
+  g_clear_pointer (&self->measure, gsk_path_measure_unref);
+  if (self->background)
+    {
+      g_signal_handlers_disconnect_matched (self->background, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, self);
+      g_clear_object (&self->background);
+    }
+
+  G_OBJECT_CLASS (gtk_maze_parent_class)->dispose (object);
+}
+
+static void
+gtk_maze_class_init (GtkMazeClass *klass)
+{
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->dispose = gtk_maze_dispose;
+
+  widget_class->measure = gtk_maze_measure;
+  widget_class->snapshot = gtk_maze_snapshot;
+}
+
+static void
+pointer_motion (GtkEventControllerMotion *controller,
+                double                    x,
+                double                    y,
+                GtkMaze                  *self)
+{
+  if (!self->active)
+    return;
+
+  if (gsk_path_measure_get_closest_point (self->measure, &GRAPHENE_POINT_INIT (x, y), NULL) <= MAZE_STROKE_SIZE_ACTIVE / 2.0f)
+    return;
+
+  self->active = FALSE;
+  gtk_widget_queue_draw (GTK_WIDGET (self));
+}
+
+static void
+pointer_leave (GtkEventControllerMotion *controller,
+               GtkMaze                  *self)
+{
+  if (!self->active)
+    {
+      self->active = TRUE;
+      gtk_widget_queue_draw (GTK_WIDGET (self));
+    }
+}
+
+static void
+gtk_maze_init (GtkMaze *self)
+{
+  GtkEventController *controller;
+
+  controller = GTK_EVENT_CONTROLLER (gtk_event_controller_motion_new ());
+  g_signal_connect (controller, "motion", G_CALLBACK (pointer_motion), self);
+  g_signal_connect (controller, "leave", G_CALLBACK (pointer_leave), self);
+  gtk_widget_add_controller (GTK_WIDGET (self), controller);
+
+  self->active = TRUE;
+}
+
+static void
+gtk_maze_set_path (GtkMaze *self,
+                   GskPath *path)
+{
+  g_clear_pointer (&self->path, gsk_path_unref);
+  g_clear_pointer (&self->measure, gsk_path_measure_unref);
+  self->path = gsk_path_ref (path);
+  self->measure = gsk_path_measure_new (path);
+
+  gtk_widget_queue_draw (GTK_WIDGET (self));
+}
+
+GtkWidget *
+gtk_maze_new (GskPath      *path,
+              GdkPaintable *background,
+              int           width,
+              int           height)
+{
+  GtkMaze *self;
+
+  self = g_object_new (GTK_TYPE_MAZE, NULL);
+
+  gtk_maze_set_path (self, path);
+  gsk_path_unref (path);
+  self->background = background;
+  if (self->background)
+    {
+      g_signal_connect_swapped (self->background, "invalidate-contents", G_CALLBACK (gtk_widget_queue_draw), self);
+      g_signal_connect_swapped (self->background, "invalidate-size", G_CALLBACK (gtk_widget_queue_resize), self);
+    }
+  self->width = width;
+  self->height = height;
+
+  return GTK_WIDGET (self);
+}
+
+static void
+add_point_to_maze (GtkBitset      *maze,
+                   GskPathBuilder *builder,
+                   guint           x,
+                   guint           y)
+{
+  gboolean set[4] = { };
+  guint dir;
+
+  gtk_bitset_add (maze, y * MAZE_WIDTH + x);
+
+  while (TRUE)
+    {
+      set[0] = set[0] || x == 0 || gtk_bitset_contains (maze, y * MAZE_WIDTH + x - 1);
+      set[1] = set[1] || y == 0 || gtk_bitset_contains (maze, (y - 1) * MAZE_WIDTH + x);
+      set[2] = set[2] || x + 1 == MAZE_WIDTH || gtk_bitset_contains (maze, y * MAZE_WIDTH + x + 1);
+      set[3] = set[3] || y + 1 == MAZE_HEIGHT || gtk_bitset_contains (maze, (y + 1) * MAZE_WIDTH + x);
+
+      if (set[0] && set[1] && set[2] && set[3])
+        return;
+      
+      do
+        {
+          dir = g_random_int_range (0, 4);
+        }
+      while (set[dir]);
+
+      switch (dir)
+        {
+          case 0:
+            gsk_path_builder_move_to (builder, (x + 0.5) * MAZE_GRID_SIZE, (y + 0.5) * MAZE_GRID_SIZE);
+            gsk_path_builder_line_to (builder, (x - 0.5) * MAZE_GRID_SIZE, (y + 0.5) * MAZE_GRID_SIZE);
+            add_point_to_maze (maze, builder, x - 1, y);
+            break;
+
+          case 1:
+            gsk_path_builder_move_to (builder, (x + 0.5) * MAZE_GRID_SIZE, (y + 0.5) * MAZE_GRID_SIZE);
+            gsk_path_builder_line_to (builder, (x + 0.5) * MAZE_GRID_SIZE, (y - 0.5) * MAZE_GRID_SIZE);
+            add_point_to_maze (maze, builder, x, y - 1);
+            break;
+
+          case 2:
+            gsk_path_builder_move_to (builder, (x + 0.5) * MAZE_GRID_SIZE, (y + 0.5) * MAZE_GRID_SIZE);
+            gsk_path_builder_line_to (builder, (x + 1.5) * MAZE_GRID_SIZE, (y + 0.5) * MAZE_GRID_SIZE);
+            add_point_to_maze (maze, builder, x + 1, y);
+            break;
+
+          case 3:
+            gsk_path_builder_move_to (builder, (x + 0.5) * MAZE_GRID_SIZE, (y + 0.5) * MAZE_GRID_SIZE);
+            gsk_path_builder_line_to (builder, (x + 0.5) * MAZE_GRID_SIZE, (y + 1.5) * MAZE_GRID_SIZE);
+            add_point_to_maze (maze, builder, x, y + 1);
+            break;
+
+          default:
+            g_assert_not_reached ();
+            break;
+        }
+    }
+}
+
+static GskPath *
+create_path_for_maze (GtkWidget *widget)
+{
+  GskPathBuilder *builder;
+  GtkBitset *maze;
+
+  builder = gsk_path_builder_new ();
+  maze = gtk_bitset_new_empty ();
+  /* make sure the outer lines are unreachable:
+   * Set the full range, then remove the center again. */
+  gtk_bitset_add_range (maze, 0, MAZE_WIDTH * MAZE_HEIGHT);
+  gtk_bitset_remove_rectangle (maze, MAZE_WIDTH + 1, MAZE_WIDTH - 2, MAZE_HEIGHT - 2, MAZE_WIDTH);
+
+  /* Fill the maze */
+  add_point_to_maze (maze, builder, MAZE_WIDTH / 2, MAZE_HEIGHT / 2);
+
+  /* Add start and stop lines */
+  gsk_path_builder_move_to (builder, 1.5 * MAZE_GRID_SIZE, -0.5 * MAZE_GRID_SIZE);
+  gsk_path_builder_line_to (builder, 1.5 * MAZE_GRID_SIZE, 1.5 * MAZE_GRID_SIZE);
+  gsk_path_builder_move_to (builder, (MAZE_WIDTH - 1.5) * MAZE_GRID_SIZE, (MAZE_HEIGHT - 1.5) * MAZE_GRID_SIZE);
+  gsk_path_builder_line_to (builder, (MAZE_WIDTH - 1.5) * MAZE_GRID_SIZE, (MAZE_HEIGHT + 0.5) * MAZE_GRID_SIZE);
+
+
+  gtk_bitset_unref (maze);
+
+  return gsk_path_builder_free_to_path (builder);
+}
+
+GtkWidget *
+do_path_maze (GtkWidget *do_widget)
+{
+  static GtkWidget *window = NULL;
+
+  if (!window)
+    {
+      GtkWidget *maze;
+      GtkMediaStream *stream;
+      GskPath *path;
+
+      window = gtk_window_new ();
+      gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
+      gtk_window_set_title (GTK_WINDOW (window), "Follow the maze with the mouse");
+      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
+
+#if 0
+      stream = gtk_media_file_new_for_resource ("/images/gtk-logo.webm");
+#else
+      stream = gtk_nuclear_media_stream_new ();
+#endif
+      gtk_media_stream_play (stream);
+      gtk_media_stream_set_loop (stream, TRUE);
+
+      path = create_path_for_maze (window);
+
+      maze = gtk_maze_new (path,
+                           GDK_PAINTABLE (stream),
+                           MAZE_WIDTH * MAZE_GRID_SIZE,
+                           MAZE_HEIGHT * MAZE_GRID_SIZE);
+
+      gtk_window_set_child (GTK_WINDOW (window), maze);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_window_destroy (GTK_WINDOW (window));
+
+  return window;
+}

demos/gtk-demo/path_text.c

@@ -0,0 +1,590 @@
+/* Path/Text
+ *
+ * This demo shows how to use GskPath to animate a path along another path.
+ */
+
+#include <glib/gi18n.h>
+#include <gtk/gtk.h>
+
+#define GTK_TYPE_PATH_WIDGET (gtk_path_widget_get_type ())
+G_DECLARE_FINAL_TYPE (GtkPathWidget, gtk_path_widget, GTK, PATH_WIDGET, GtkWidget)
+
+#define POINT_SIZE 8
+
+enum {
+  PROP_0,
+  PROP_TEXT,
+  PROP_EDITABLE,
+  N_PROPS
+};
+
+struct _GtkPathWidget
+{
+  GtkWidget parent_instance;
+
+  char *text;
+  gboolean editable;
+
+  graphene_point_t points[4];
+
+  guint active_point;
+  float line_closest;
+
+  GskPath *line_path;
+  GskPathMeasure *line_measure;
+  GskPath *text_path;
+
+  GdkPaintable *background;
+};
+
+struct _GtkPathWidgetClass
+{
+  GtkWidgetClass parent_class;
+};
+
+static GParamSpec *properties[N_PROPS] = { NULL, };
+
+G_DEFINE_TYPE (GtkPathWidget, gtk_path_widget, GTK_TYPE_WIDGET)
+
+static GskPath *
+create_path_from_text (GtkWidget  *widget,
+                       const char *text)
+{
+  cairo_surface_t *surface;
+  cairo_t *cr;
+  cairo_path_t *path;
+  PangoLayout *layout;
+  PangoFontDescription *desc;
+  GskPath *result;
+
+  surface = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL);
+  cr = cairo_create (surface);
+
+  layout = gtk_widget_create_pango_layout (widget, text);
+  desc = pango_font_description_from_string ("sans bold 36");
+  pango_layout_set_font_description (layout, desc);
+  pango_font_description_free (desc);
+
+  cairo_move_to (cr, 0, - pango_layout_get_baseline (layout) / (double) PANGO_SCALE);
+  pango_cairo_layout_path (cr, layout);
+  path = cairo_copy_path_flat (cr);
+  result = gsk_path_new_from_cairo (path);
+
+  cairo_path_destroy (path);
+  g_object_unref (layout);
+  cairo_destroy (cr);
+  cairo_surface_destroy (surface);
+
+  return result;
+}
+
+typedef struct
+{
+  GskPathMeasure *measure;
+  GskPathBuilder *builder;
+  double scale;
+} GtkPathTransform;
+
+static void
+gtk_path_transform_point (GskPathMeasure         *measure,
+                          const graphene_point_t *pt,
+                          float                   scale,
+                          graphene_point_t       *res)
+{
+  graphene_vec2_t tangent;
+
+  gsk_path_measure_get_point (measure, pt->x * scale, res, &tangent);
+
+  res->x -= pt->y * scale * graphene_vec2_get_y (&tangent);
+  res->y += pt->y * scale * graphene_vec2_get_x (&tangent);
+}
+
+static gboolean
+gtk_path_transform_op (GskPathOperation        op,
+                       const graphene_point_t *pts,
+                       gsize                   n_pts,
+                       float                   weight,
+                       gpointer                data)
+{
+  GtkPathTransform *transform = data;
+
+  switch (op)
+  {
+    case GSK_PATH_MOVE:
+      {
+        graphene_point_t res;
+        gtk_path_transform_point (transform->measure, &pts[0], transform->scale, &res);
+        gsk_path_builder_move_to (transform->builder, res.x, res.y);
+      }
+      break;
+
+    case GSK_PATH_LINE:
+      {
+        graphene_point_t res;
+        gtk_path_transform_point (transform->measure, &pts[1], transform->scale, &res);
+        gsk_path_builder_line_to (transform->builder, res.x, res.y);
+      }
+      break;
+
+    case GSK_PATH_CURVE:
+      {
+        graphene_point_t res[3];
+        gtk_path_transform_point (transform->measure, &pts[1], transform->scale, &res[0]);
+        gtk_path_transform_point (transform->measure, &pts[2], transform->scale, &res[1]);
+        gtk_path_transform_point (transform->measure, &pts[3], transform->scale, &res[2]);
+        gsk_path_builder_curve_to (transform->builder, res[0].x, res[0].y, res[1].x, res[1].y, res[2].x, res[2].y);
+      }
+      break;
+
+    case GSK_PATH_CONIC:
+      {
+        graphene_point_t res[2];
+        gtk_path_transform_point (transform->measure, &pts[1], transform->scale, &res[0]);
+        gtk_path_transform_point (transform->measure, &pts[2], transform->scale, &res[1]);
+        gsk_path_builder_conic_to (transform->builder, res[0].x, res[0].y, res[1].x, res[1].y, weight);
+      }
+      break;
+
+    case GSK_PATH_CLOSE:
+      gsk_path_builder_close (transform->builder);
+      break;
+
+    default:
+      g_assert_not_reached();
+      return FALSE;
+  }
+
+  return TRUE;
+}
+
+static GskPath *
+gtk_path_transform (GskPathMeasure *measure,
+                    GskPath        *path)
+{
+  GtkPathTransform transform = { measure, gsk_path_builder_new () };
+  graphene_rect_t bounds;
+
+  gsk_path_get_bounds (path, &bounds);
+  if (bounds.origin.x + bounds.size.width > 0)
+    transform.scale = gsk_path_measure_get_length (measure) / (bounds.origin.x + bounds.size.width);
+  else
+    transform.scale = 1.0f;
+
+  gsk_path_foreach (path, gtk_path_transform_op, &transform);
+
+  return gsk_path_builder_free_to_path (transform.builder);
+}
+
+static void
+gtk_path_widget_clear_text_path (GtkPathWidget *self)
+{
+  g_clear_pointer (&self->text_path, gsk_path_unref);
+}
+
+static void
+gtk_path_widget_clear_paths (GtkPathWidget *self)
+{
+  gtk_path_widget_clear_text_path (self);
+
+  g_clear_pointer (&self->line_path, gsk_path_unref);
+  g_clear_pointer (&self->line_measure, gsk_path_measure_unref);
+}
+
+static void
+gtk_path_widget_create_text_path (GtkPathWidget *self)
+{
+  GskPath *path;
+
+  gtk_path_widget_clear_text_path (self);
+
+  if (self->line_measure == NULL)
+    return;
+
+  path = create_path_from_text (GTK_WIDGET (self), self->text);
+  self->text_path = gtk_path_transform (self->line_measure, path);
+
+  gsk_path_unref (path);
+}
+
+static void
+gtk_path_widget_create_paths (GtkPathWidget *self)
+{
+  double width = gtk_widget_get_width (GTK_WIDGET (self));
+  double height = gtk_widget_get_height (GTK_WIDGET (self));
+  GskPathBuilder *builder;
+
+  gtk_path_widget_clear_paths (self);
+
+  if (width <= 0 || height <= 0)
+    return;
+
+  builder = gsk_path_builder_new ();
+  gsk_path_builder_move_to (builder,
+                            self->points[0].x * width, self->points[0].y * height);
+  gsk_path_builder_curve_to (builder,
+                             self->points[1].x * width, self->points[1].y * height,
+                             self->points[2].x * width, self->points[2].y * height,
+                             self->points[3].x * width, self->points[3].y * height);
+  self->line_path = gsk_path_builder_free_to_path (builder);
+
+  self->line_measure = gsk_path_measure_new (self->line_path);
+
+  gtk_path_widget_create_text_path (self);
+}
+
+static void
+gtk_path_widget_allocate (GtkWidget *widget,
+                          int        width,
+                          int        height,
+                          int        baseline)
+{
+  GtkPathWidget *self = GTK_PATH_WIDGET (widget);
+
+  GTK_WIDGET_CLASS (gtk_path_widget_parent_class)->size_allocate (widget, width, height, baseline);
+
+  gtk_path_widget_create_paths (self);
+}
+
+static void
+gtk_path_widget_snapshot (GtkWidget   *widget,
+                          GtkSnapshot *snapshot)
+{
+  GtkPathWidget *self = GTK_PATH_WIDGET (widget);
+  double width = gtk_widget_get_width (widget);
+  double height = gtk_widget_get_height (widget);
+  GskPath *path;
+  GskStroke *stroke;
+  gsize i;
+
+  /* frosted glass the background */
+  gtk_snapshot_push_blur (snapshot, 100);
+  gdk_paintable_snapshot (self->background, snapshot, width, height);
+  gtk_snapshot_append_color (snapshot, &(GdkRGBA) { 1, 1, 1, 0.6 }, &GRAPHENE_RECT_INIT (0, 0, width, height));
+  gtk_snapshot_pop (snapshot);
+
+  /* draw the text */
+  if (self->text_path)
+    {
+      gtk_snapshot_push_fill (snapshot, self->text_path, GSK_FILL_RULE_WINDING);
+      gdk_paintable_snapshot (self->background, snapshot, width, height);
+
+      /* ... with an emboss effect */
+      stroke = gsk_stroke_new (2.0);
+      gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT(1, 1));
+      gtk_snapshot_push_stroke (snapshot, self->text_path, stroke);
+      gtk_snapshot_append_color (snapshot, &(GdkRGBA) { 0, 0, 0, 0.2 }, &GRAPHENE_RECT_INIT (0, 0, width, height));
+      gsk_stroke_free (stroke);
+      gtk_snapshot_pop (snapshot);
+
+      gtk_snapshot_pop (snapshot);
+    }
+
+  if (self->editable)
+    {
+      GskPathBuilder *builder;
+
+      /* draw the control line */
+      stroke = gsk_stroke_new (1.0);
+      gtk_snapshot_push_stroke (snapshot, self->line_path, stroke);
+      gsk_stroke_free (stroke);
+      gtk_snapshot_append_color (snapshot, &(GdkRGBA) { 0, 0, 0, 1 }, &GRAPHENE_RECT_INIT (0, 0, width, height));
+      gtk_snapshot_pop (snapshot);
+
+      /* draw the points */
+      builder = gsk_path_builder_new ();
+      for (i = 0; i < 4; i++)
+        {
+          gsk_path_builder_add_circle (builder, &GRAPHENE_POINT_INIT (self->points[i].x * width, self->points[i].y * height), POINT_SIZE);
+        }
+      path = gsk_path_builder_free_to_path (builder);
+
+      gtk_snapshot_push_fill (snapshot, path, GSK_FILL_RULE_WINDING);
+      gtk_snapshot_append_color (snapshot, &(GdkRGBA) { 1, 1, 1, 1 }, &GRAPHENE_RECT_INIT (0, 0, width, height));
+      gtk_snapshot_pop (snapshot);
+
+      stroke = gsk_stroke_new (1.0);
+      gtk_snapshot_push_stroke (snapshot, path, stroke);
+      gsk_stroke_free (stroke);
+      gtk_snapshot_append_color (snapshot, &(GdkRGBA) { 0, 0, 0, 1 }, &GRAPHENE_RECT_INIT (0, 0, width, height));
+      gtk_snapshot_pop (snapshot);
+
+      gsk_path_unref (path);
+    }
+
+  if (self->line_closest >= 0)
+    {
+      GskPathBuilder *builder;
+      graphene_point_t closest;
+
+      builder = gsk_path_builder_new ();
+      gsk_path_measure_get_point (self->line_measure, self->line_closest, &closest, NULL);
+      gsk_path_builder_add_circle (builder, &closest, POINT_SIZE);
+      path = gsk_path_builder_free_to_path (builder);
+
+      gtk_snapshot_push_fill (snapshot, path, GSK_FILL_RULE_WINDING);
+      gtk_snapshot_append_color (snapshot, &(GdkRGBA) { 0, 0, 1, 1 }, &GRAPHENE_RECT_INIT (0, 0, width, height));
+      gtk_snapshot_pop (snapshot);
+
+      gsk_path_unref (path);
+    }
+}
+
+static void
+gtk_path_widget_set_text (GtkPathWidget *self,
+                          const char    *text)
+{
+  if (g_strcmp0 (self->text, text) == 0)
+    return;
+
+  g_free (self->text);
+  self->text = g_strdup (text);
+
+  gtk_path_widget_create_paths (self);
+
+  gtk_widget_queue_draw (GTK_WIDGET (self));
+
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_TEXT]);
+}
+
+static void
+gtk_path_widget_set_editable (GtkPathWidget *self,
+                              gboolean       editable)
+{
+  if (self->editable == editable)
+    return;
+
+  self->editable = editable;
+
+  gtk_widget_queue_draw (GTK_WIDGET (self));
+
+  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_EDITABLE]);
+}
+
+static void
+gtk_path_widget_set_property (GObject      *object,
+                              guint         prop_id,
+                              const GValue *value,
+                              GParamSpec   *pspec)
+
+{
+  GtkPathWidget *self = GTK_PATH_WIDGET (object);
+
+  switch (prop_id)
+    {
+    case PROP_TEXT:
+      gtk_path_widget_set_text (self, g_value_get_string (value));
+      break;
+
+    case PROP_EDITABLE:
+      gtk_path_widget_set_editable (self, g_value_get_boolean (value));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+gtk_path_widget_get_property (GObject    *object,
+                              guint       prop_id,
+                              GValue     *value,
+                              GParamSpec *pspec)
+{
+  GtkPathWidget *self = GTK_PATH_WIDGET (object);
+
+  switch (prop_id)
+    {
+    case PROP_TEXT:
+      g_value_set_string (value, self->text);
+      break;
+
+    case PROP_EDITABLE:
+      g_value_set_boolean (value, self->editable);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static void
+gtk_path_widget_dispose (GObject *object)
+{
+  GtkPathWidget *self = GTK_PATH_WIDGET (object);
+
+  gtk_path_widget_clear_paths (self);
+
+  G_OBJECT_CLASS (gtk_path_widget_parent_class)->dispose (object);
+}
+
+static void
+gtk_path_widget_class_init (GtkPathWidgetClass *klass)
+{
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->dispose = gtk_path_widget_dispose;
+  object_class->set_property = gtk_path_widget_set_property;
+  object_class->get_property = gtk_path_widget_get_property;
+
+  widget_class->size_allocate = gtk_path_widget_allocate;
+  widget_class->snapshot = gtk_path_widget_snapshot;
+
+  properties[PROP_TEXT] =
+    g_param_spec_string ("text",
+                         "text",
+                         "Text transformed along a path",
+                         NULL,
+                         G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
+  properties[PROP_EDITABLE] =
+    g_param_spec_boolean ("editable",
+                          "editable",
+                          "If the path can be edited by the user",
+                          FALSE,
+                          G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
+
+  g_object_class_install_properties (object_class, N_PROPS, properties);
+}
+
+static void
+drag_begin (GtkGestureDrag *gesture,
+            double          x,
+            double          y,
+            GtkPathWidget  *self)
+{
+  graphene_point_t mouse = GRAPHENE_POINT_INIT (x, y);
+  double width = gtk_widget_get_width (GTK_WIDGET (self));
+  double height = gtk_widget_get_height (GTK_WIDGET (self));
+  gsize i;
+
+  for (i = 0; i < 4; i++)
+    {
+      if (graphene_point_distance (&GRAPHENE_POINT_INIT (self->points[i].x * width, self->points[i].y * height), &mouse, NULL, NULL) <= POINT_SIZE)
+        {
+          self->active_point = i;
+          break;
+        }
+    }
+  if (i == 4)
+    {
+      gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED);
+      return;
+    }
+
+  gtk_widget_queue_draw (GTK_WIDGET (self));
+}
+
+static void
+drag_update (GtkGestureDrag *drag,
+             double          offset_x,
+             double          offset_y,
+             GtkPathWidget  *self)
+{
+  double width = gtk_widget_get_width (GTK_WIDGET (self));
+  double height = gtk_widget_get_height (GTK_WIDGET (self));
+  double start_x, start_y;
+
+  gtk_gesture_drag_get_start_point (drag, &start_x, &start_y);
+
+  self->points[self->active_point] = GRAPHENE_POINT_INIT ((start_x + offset_x) / width,
+                                                          (start_y + offset_y) / height);
+  self->points[self->active_point].x = CLAMP (self->points[self->active_point].x, 0, 1);
+  self->points[self->active_point].y = CLAMP (self->points[self->active_point].y, 0, 1);
+
+  gtk_path_widget_create_paths (self);
+
+  gtk_widget_queue_draw (GTK_WIDGET (self));
+}
+
+static void
+pointer_motion (GtkEventControllerMotion *controller,
+                double                    x,
+                double                    y,
+                GtkPathWidget            *self)
+{
+  gsk_path_measure_get_closest_point_full (self->line_measure,
+                                           &GRAPHENE_POINT_INIT (x, y),
+                                           INFINITY,
+                                           &self->line_closest,
+                                           NULL, NULL, NULL);
+
+  gtk_widget_queue_draw (GTK_WIDGET (self));
+}
+
+static void
+pointer_leave (GtkEventControllerMotion *controller,
+               GtkPathWidget            *self)
+{
+  self->line_closest = -1;
+
+  gtk_widget_queue_draw (GTK_WIDGET (self));
+}
+
+static void
+gtk_path_widget_init (GtkPathWidget *self)
+{
+  GtkEventController *controller;
+
+  controller = GTK_EVENT_CONTROLLER (gtk_gesture_drag_new ());
+  g_signal_connect (controller, "drag-begin", G_CALLBACK (drag_begin), self);
+  g_signal_connect (controller, "drag-update", G_CALLBACK (drag_update), self);
+  g_signal_connect (controller, "drag-end", G_CALLBACK (drag_update), self);
+  gtk_widget_add_controller (GTK_WIDGET (self), controller);
+
+  controller = GTK_EVENT_CONTROLLER (gtk_event_controller_motion_new ());
+  g_signal_connect (controller, "enter", G_CALLBACK (pointer_motion), self);
+  g_signal_connect (controller, "motion", G_CALLBACK (pointer_motion), self);
+  g_signal_connect (controller, "leave", G_CALLBACK (pointer_leave), self);
+  gtk_widget_add_controller (GTK_WIDGET (self), controller);
+
+  self->line_closest = -1;
+
+  self->points[0] = GRAPHENE_POINT_INIT (0.1, 0.9);
+  self->points[1] = GRAPHENE_POINT_INIT (0.3, 0.1);
+  self->points[2] = GRAPHENE_POINT_INIT (0.7, 0.1);
+  self->points[3] = GRAPHENE_POINT_INIT (0.9, 0.9);
+
+  self->background = GDK_PAINTABLE (gdk_texture_new_from_resource ("/sliding_puzzle/portland-rose.jpg"));
+
+  gtk_path_widget_set_text (self, "It's almost working");
+}
+
+GtkWidget *
+gtk_path_widget_new (void)
+{
+  GtkPathWidget *self;
+
+  self = g_object_new (GTK_TYPE_PATH_WIDGET, NULL);
+
+  return GTK_WIDGET (self);
+}
+
+GtkWidget *
+do_path_text (GtkWidget *do_widget)
+{
+  static GtkWidget *window = NULL;
+
+  if (!window)
+    {
+      GtkBuilder *builder;
+
+      g_type_ensure (GTK_TYPE_PATH_WIDGET);
+
+      builder = gtk_builder_new_from_resource ("/path_text/path_text.ui");
+      window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *) &window);
+      g_object_unref (builder);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_window_destroy (GTK_WINDOW (window));
+
+  return window;
+}

demos/gtk-demo/path_text.ui

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <object class="GtkWindow" id="window">
+    <property name="title" translatable="yes">Text along a Path</property>
+    <child type="titlebar">
+      <object class="GtkHeaderBar">
+        <child type="end">
+          <object class="GtkToggleButton" id="edit-toggle">
+            <property name="icon-name">document-edit-symbolic</property>
+          </object>
+        </child>
+      </object>
+    </child>
+    <child>
+      <object class="GtkBox">
+        <property name="orientation">vertical</property>
+        <child>
+          <object class="GtkRevealer">
+            <property name="reveal-child" bind-source="edit-toggle" bind-property="active" bind-flags="sync-create"></property>
+            <child>
+              <object class="GtkEntry" id="text">
+                <property name="text">Through the looking glass</property>
+              </object>
+            </child>
+          </object>
+        </child>
+        <child>
+          <object class="GtkPathWidget" id="view">
+            <property name="editable" bind-source="edit-toggle" bind-property="active" bind-flags="sync-create"></property>
+            <property name="text" bind-source="text" bind-property="text" bind-flags="sync-create"></property>
+            <property name="hexpand">true</property>
+            <property name="vexpand">true</property>
+          </object>
+        </child>
+      </object>
+    </child>
+  </object>
+</interface>

demos/gtk-demo/pixbufpaintable.c

@@ -0,0 +1,187 @@
+#include <gtk/gtk.h>
+#include "pixbufpaintable.h"
+
+struct _PixbufPaintable {
+  GObject parent_instance;
+
+  char *resource_path;
+  GdkPixbufAnimation *anim;
+  GdkPixbufAnimationIter *iter;
+
+  guint timeout;
+};
+
+enum {
+  PROP_RESOURCE_PATH = 1,
+  NUM_PROPERTIES
+};
+
+G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
+static void
+pixbuf_paintable_snapshot (GdkPaintable *paintable,
+                           GdkSnapshot  *snapshot,
+                           double        width,
+                           double        height)
+{
+  PixbufPaintable *self = PIXBUF_PAINTABLE (paintable);
+  GTimeVal val;
+  GdkPixbuf *pixbuf;
+  GdkTexture *texture;
+
+  g_get_current_time (&val);
+  gdk_pixbuf_animation_iter_advance (self->iter, &val);
+  pixbuf = gdk_pixbuf_animation_iter_get_pixbuf (self->iter);
+  texture = gdk_texture_new_for_pixbuf (pixbuf);
+
+  gdk_paintable_snapshot (GDK_PAINTABLE (texture), snapshot, width, height);
+
+  g_object_unref (texture);
+}
+G_GNUC_END_IGNORE_DEPRECATIONS;
+
+static int
+pixbuf_paintable_get_intrinsic_width (GdkPaintable *paintable)
+{
+  PixbufPaintable *self = PIXBUF_PAINTABLE (paintable);
+
+  return gdk_pixbuf_animation_get_width (self->anim);
+}
+
+static int
+pixbuf_paintable_get_intrinsic_height (GdkPaintable *paintable)
+{
+  PixbufPaintable *self = PIXBUF_PAINTABLE (paintable);
+
+  return gdk_pixbuf_animation_get_height (self->anim);
+}
+
+static void
+pixbuf_paintable_init_interface (GdkPaintableInterface *iface)
+{
+  iface->snapshot = pixbuf_paintable_snapshot;
+  iface->get_intrinsic_width = pixbuf_paintable_get_intrinsic_width;
+  iface->get_intrinsic_height = pixbuf_paintable_get_intrinsic_height;
+}
+
+G_DEFINE_TYPE_WITH_CODE(PixbufPaintable, pixbuf_paintable, G_TYPE_OBJECT,
+                        G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
+                                               pixbuf_paintable_init_interface))
+
+static void
+pixbuf_paintable_init (PixbufPaintable *paintable)
+{
+}
+
+static gboolean
+delay_cb (gpointer data)
+{
+  PixbufPaintable *self = data;
+  int delay;
+
+  delay = gdk_pixbuf_animation_iter_get_delay_time (self->iter);
+  self->timeout = g_timeout_add (delay, delay_cb, self);
+
+  gdk_paintable_invalidate_contents (GDK_PAINTABLE (self));
+
+  return G_SOURCE_REMOVE;
+}
+
+static void
+pixbuf_paintable_set_resource_path (PixbufPaintable *self,
+                                    const char      *resource_path)
+{
+  int delay;
+
+  g_free (self->resource_path);
+  self->resource_path = g_strdup (resource_path);
+
+  g_clear_object (&self->anim);
+  self->anim = gdk_pixbuf_animation_new_from_resource (resource_path, NULL);
+  g_clear_object (&self->iter);
+  self->iter = gdk_pixbuf_animation_get_iter (self->anim, NULL);
+
+  delay = gdk_pixbuf_animation_iter_get_delay_time (self->iter);
+  self->timeout = g_timeout_add (delay, delay_cb, self);
+
+  gdk_paintable_invalidate_contents (GDK_PAINTABLE (self));
+
+  g_object_notify (G_OBJECT (self), "resource-path");
+}
+
+static void
+pixbuf_paintable_set_property (GObject      *object,
+                               guint         prop_id,
+                               const GValue *value,
+                               GParamSpec   *pspec)
+{
+  PixbufPaintable *self = PIXBUF_PAINTABLE (object);
+
+  switch (prop_id)
+    {
+    case PROP_RESOURCE_PATH:
+      pixbuf_paintable_set_resource_path (self, g_value_get_string (value));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+pixbuf_paintable_get_property (GObject    *object,
+                               guint       prop_id,
+                               GValue     *value,
+                               GParamSpec *pspec)
+{
+  PixbufPaintable *self = PIXBUF_PAINTABLE (object);
+
+  switch (prop_id)
+    {
+    case PROP_RESOURCE_PATH:
+      g_value_set_string (value, self->resource_path);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+pixbuf_paintable_dispose (GObject *object)
+{
+  PixbufPaintable *self = PIXBUF_PAINTABLE (object);
+
+  g_clear_pointer (&self->resource_path, g_free);
+  g_clear_object (&self->anim);
+  g_clear_object (&self->iter);
+  if (self->timeout)
+    {
+      g_source_remove (self->timeout);
+      self->timeout = 0;
+    }
+
+  G_OBJECT_CLASS (pixbuf_paintable_parent_class)->dispose (object);
+}
+
+static void
+pixbuf_paintable_class_init (PixbufPaintableClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+
+  object_class->dispose = pixbuf_paintable_dispose;
+  object_class->get_property = pixbuf_paintable_get_property;
+  object_class->set_property = pixbuf_paintable_set_property;
+
+  g_object_class_install_property (object_class, PROP_RESOURCE_PATH,
+      g_param_spec_string ("resource-path", "Resource path", "Resource path",
+                           NULL, G_PARAM_READWRITE));
+
+}
+
+GdkPaintable *
+pixbuf_paintable_new_from_resource (const char *path)
+{
+  return g_object_new (PIXBUF_TYPE_PAINTABLE,
+                       "resource-path", path,
+                       NULL);
+}

demos/gtk-demo/pixbufpaintable.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define PIXBUF_TYPE_PAINTABLE (pixbuf_paintable_get_type ())
+
+G_DECLARE_FINAL_TYPE(PixbufPaintable, pixbuf_paintable, PIXBUF, PAINTABLE, GObject)
+
+GdkPaintable * pixbuf_paintable_new_from_resource (const char *path);
+
+G_END_DECLS

demos/gtk-demo/search_entry.c

@@ -110,17 +110,17 @@ set_search_by (GSimpleAction *action,
   if (g_str_equal (term, "name"))
     {
       gtk_entry_set_icon_tooltip_text (entry, GTK_ENTRY_ICON_PRIMARY, "Search by name");
-      gtk_entry_set_placeholder_text (entry, "name");
+      gtk_entry_set_placeholder_text (entry, "Name…");
     }
   else if (g_str_equal (term, "description"))
     {
       gtk_entry_set_icon_tooltip_text (entry, GTK_ENTRY_ICON_PRIMARY, "Search by description");
-      gtk_entry_set_placeholder_text (entry, "description");
+      gtk_entry_set_placeholder_text (entry, "Description…");
     }
   else if (g_str_equal (term, "filename"))
     {
       gtk_entry_set_icon_tooltip_text (entry, GTK_ENTRY_ICON_PRIMARY, "Search by file name");
-      gtk_entry_set_placeholder_text (entry, "file name");
+      gtk_entry_set_placeholder_text (entry, "File name…");
     }
 }
 
@@ -254,7 +254,6 @@ do_search_entry (GtkWidget *do_widget)
 {
   GtkWidget *vbox;
   GtkWidget *hbox;
-  GtkWidget *label;
   GtkWidget *entry;
   GtkWidget *find_button;
   GtkWidget *cancel_button;
@@ -268,18 +267,14 @@ do_search_entry (GtkWidget *do_widget)
 
       g_object_weak_ref (G_OBJECT (window), search_entry_destroyed, &window);
 
-      vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
-      gtk_widget_set_margin_start (vbox, 5);
-      gtk_widget_set_margin_end (vbox, 5);
-      gtk_widget_set_margin_top (vbox, 5);
-      gtk_widget_set_margin_bottom (vbox, 5);
+      vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
+      gtk_widget_set_margin_start (vbox, 18);
+      gtk_widget_set_margin_end (vbox, 18);
+      gtk_widget_set_margin_top (vbox, 18);
+      gtk_widget_set_margin_bottom (vbox, 18);
       gtk_window_set_child (GTK_WINDOW (window), vbox);
 
-      label = gtk_label_new (NULL);
-      gtk_label_set_markup (GTK_LABEL (label), "Search entry demo");
-      gtk_box_append (GTK_BOX (vbox), label);
-
-      hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
+      hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
       gtk_box_append (GTK_BOX (vbox), hbox);
 
       /* Create our entry */

demos/gtk-demo/search_entry2.c

@@ -1,10 +1,10 @@
-/* Entry/Delayed Search Entry
+/* Entry/Type to Search
  *
  * GtkSearchEntry provides an entry that is ready for search.
  *
- * Search entries have their "changed" signal delayed and should
- * be used when the searched operation is slow such as loads of
- * entries to search, or online searches.
+ * Search entries have their "search-changed" signal delayed and
+ * should be used when the search operation is slow, such as big
+ * datasets to search, or online searches.
  *
  * GtkSearchBar allows have a hidden search entry that 'springs
  * into action' upon keyboard input.
@@ -18,101 +18,69 @@ search_changed_cb (GtkSearchEntry *entry,
 {
   const char *text;
   text = gtk_editable_get_text (GTK_EDITABLE (entry));
-  g_message ("search changed: %s", text);
   gtk_label_set_text (result_label, text ? text : "");
 }
 
-static void
-changed_cb (GtkEditable *editable)
-{
-  const char *text;
-  text = gtk_editable_get_text (GTK_EDITABLE (editable));
-  g_message ("changed: %s", text);
-}
-
-static void
-search_changed (GtkSearchEntry *entry,
-                GtkLabel       *label)
-{
-  gtk_label_set_text (label, "search-changed");
-}
-
-static void
-next_match (GtkSearchEntry *entry,
-            GtkLabel       *label)
-{
-  gtk_label_set_text (label, "next-match");
-}
-
-static void
-previous_match (GtkSearchEntry *entry,
-                GtkLabel       *label)
-{
-  gtk_label_set_text (label, "previous-match");
-}
-
-static void
-stop_search (GtkSearchEntry *entry,
-             GtkLabel       *label)
-{
-  gtk_label_set_text (label, "stop-search");
-}
-
 GtkWidget *
 do_search_entry2 (GtkWidget *do_widget)
 {
   static GtkWidget *window = NULL;
   GtkWidget *vbox;
   GtkWidget *hbox;
+  GtkWidget *box;
   GtkWidget *label;
   GtkWidget *entry;
-  GtkWidget *container;
   GtkWidget *searchbar;
   GtkWidget *button;
+  GtkWidget *header;
 
   if (!window)
     {
       window = gtk_window_new ();
-      gtk_window_set_title (GTK_WINDOW (window), "Delayed Search Entry");
+      gtk_window_set_title (GTK_WINDOW (window), "Type to Search");
       gtk_window_set_transient_for (GTK_WINDOW (window), GTK_WINDOW (do_widget));
-      gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
+      gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
       gtk_widget_set_size_request (window, 200, -1);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
+      header = gtk_header_bar_new ();
+      gtk_window_set_titlebar (GTK_WINDOW (window), header);
+
       vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
       gtk_window_set_child (GTK_WINDOW (window), vbox);
 
       entry = gtk_search_entry_new ();
-      container = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
-      gtk_widget_set_halign (container, GTK_ALIGN_CENTER);
-      gtk_box_append (GTK_BOX (container), entry);
+      gtk_widget_set_halign (entry, GTK_ALIGN_CENTER);
       searchbar = gtk_search_bar_new ();
       gtk_search_bar_connect_entry (GTK_SEARCH_BAR (searchbar), GTK_EDITABLE (entry));
       gtk_search_bar_set_show_close_button (GTK_SEARCH_BAR (searchbar), FALSE);
-      gtk_search_bar_set_child (GTK_SEARCH_BAR (searchbar), container);
+      gtk_search_bar_set_child (GTK_SEARCH_BAR (searchbar), entry);
       gtk_box_append (GTK_BOX (vbox), searchbar);
 
       /* Hook the search bar to key presses */
       gtk_search_bar_set_key_capture_widget (GTK_SEARCH_BAR (searchbar), window);
 
-      /* Help */
-      label = gtk_label_new ("Start Typing to search");
-      gtk_box_append (GTK_BOX (vbox), label);
+      box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 18);
+      gtk_widget_set_margin_start (box, 18);
+      gtk_widget_set_margin_end (box, 18);
+      gtk_widget_set_margin_top (box, 18);
+      gtk_widget_set_margin_bottom (box, 18);
+      gtk_box_append (GTK_BOX (vbox), box);
 
       /* Toggle button */
-      button = gtk_toggle_button_new_with_label ("Search");
+      button = gtk_toggle_button_new ();
+      gtk_button_set_icon_name (GTK_BUTTON (button), "system-search-symbolic");
       g_object_bind_property (button, "active",
                               searchbar, "search-mode-enabled",
                               G_BINDING_BIDIRECTIONAL);
-      gtk_box_append (GTK_BOX (vbox), button);
+      gtk_header_bar_pack_end (GTK_HEADER_BAR (header), button);
 
       /* Result */
       hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
-      gtk_box_append (GTK_BOX (vbox), hbox);
+      gtk_box_append (GTK_BOX (box), hbox);
 
-      label = gtk_label_new ("Result:");
+      label = gtk_label_new ("Searching for:");
       gtk_label_set_xalign (GTK_LABEL (label), 0.0);
-      gtk_widget_set_margin_start (label, 6);
       gtk_box_append (GTK_BOX (hbox), label);
 
       label = gtk_label_new ("");
@@ -120,28 +88,6 @@ do_search_entry2 (GtkWidget *do_widget)
 
       g_signal_connect (entry, "search-changed",
                         G_CALLBACK (search_changed_cb), label);
-      g_signal_connect (entry, "changed",
-                        G_CALLBACK (changed_cb), label);
-
-      hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
-      gtk_box_append (GTK_BOX (vbox), hbox);
-
-      label = gtk_label_new ("Signal:");
-      gtk_label_set_xalign (GTK_LABEL (label), 0.0);
-      gtk_widget_set_margin_start (label, 6);
-      gtk_box_append (GTK_BOX (hbox), label);
-
-      label = gtk_label_new ("");
-      gtk_box_append (GTK_BOX (hbox), label);
-
-      g_signal_connect (entry, "search-changed",
-                        G_CALLBACK (search_changed), label);
-      g_signal_connect (entry, "next-match",
-                        G_CALLBACK (next_match), label);
-      g_signal_connect (entry, "previous-match",
-                        G_CALLBACK (previous_match), label);
-      g_signal_connect (entry, "stop-search",
-                        G_CALLBACK (stop_search), label);
     }
 
   if (!gtk_widget_get_visible (window))

demos/gtk-demo/shortcut_triggers.c

@@ -57,6 +57,8 @@ do_shortcut_triggers (GtkWidget *do_widget)
       gtk_window_set_display (GTK_WINDOW (window),
                               gtk_widget_get_display (do_widget));
       gtk_window_set_title (GTK_WINDOW (window), "Shortcuts");
+      gtk_window_set_default_size (GTK_WINDOW (window), 200, -1);
+      gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
       list = gtk_list_box_new ();

demos/gtk-demo/sliding_puzzle.c

@@ -1,5 +1,5 @@
 /* Sliding Puzzle
- * #Keywords: GdkPaintable, GdkGesture, game
+ * #Keywords: GdkPaintable, GdkGesture, GtkShortcutController, game
  *
  * This demo demonstrates how to use gestures and paintables to create a
  * small sliding puzzle game.
@@ -281,7 +281,8 @@ start_puzzle (GdkPaintable *paintable)
   gtk_aspect_frame_set_obey_child (GTK_ASPECT_FRAME (frame), FALSE);
 
   /* Add shortcuts so people can use the arrow
-   * keys to move the puzzle */
+   * keys to move the puzzle
+   */
   controller = gtk_shortcut_controller_new ();
   gtk_shortcut_controller_set_scope (GTK_SHORTCUT_CONTROLLER (controller),
                                      GTK_SHORTCUT_SCOPE_LOCAL);

demos/gtk-demo/suggestionentry.css

@@ -0,0 +1,28 @@
+entry.suggestion > popover.menu.background > contents {
+  padding: 0;
+}
+
+entry.suggestion arrow {
+  -gtk-icon-source: -gtk-icontheme('pan-down-symbolic');
+  min-height: 16px;
+  min-width: 16px;
+}
+
+entry.suggestion > popover {
+  margin-top: 6px;
+  padding: 0;
+}
+
+entry.suggestion > popover listview {
+  margin: 8px 0;
+}
+
+entry.suggestion > popover listview > row {
+  padding: 8px;
+}
+
+entry.suggestion > popover listview > row:selected {
+  outline-color: rgba(1,1,1,0.2);
+  color: @theme_text_color;
+  background-color: shade(#f6f5f4, 0.97);
+}

demos/gtk-demo/suggestionentry.h

@@ -0,0 +1,66 @@
+#pragma once
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+
+#define MATCH_TYPE_OBJECT                 (match_object_get_type ())
+#define MATCH_OBJECT(obj)                 (G_TYPE_CHECK_INSTANCE_CAST ((obj), MATCH_TYPE_OBJECT, MatchObject))
+#define MATCH_IS_OBJECT(obj)              (G_TYPE_CHECK_INSTANCE_TYPE ((obj), MATCH_TYPE_OBJECT))
+
+typedef struct _MatchObject MatchObject;
+
+GType            match_object_get_type (void) G_GNUC_CONST;
+
+gpointer         match_object_get_item        (MatchObject *object);
+const char *     match_object_get_string      (MatchObject *object);
+guint            match_object_get_match_start (MatchObject *object);
+guint            match_object_get_match_end   (MatchObject *object);
+guint            match_object_get_score       (MatchObject *object);
+void             match_object_set_match       (MatchObject *object,
+                                               guint        start,
+                                               guint        end,
+                                               guint        score);
+
+#define SUGGESTION_TYPE_ENTRY               (suggestion_entry_get_type ())
+#define SUGGESTION_ENTRY(obj)               (G_TYPE_CHECK_INSTANCE_CAST ((obj), SUGGESTION_TYPE_ENTRY, SuggestionEntry))
+#define SUGGESTION_IS_ENTRY(obj)            (G_TYPE_CHECK_INSTANCE_TYPE ((obj), SUGGESTION_TYPE_ENTRY))
+
+typedef struct _SuggestionEntry       SuggestionEntry;
+
+GType           suggestion_entry_get_type (void) G_GNUC_CONST;
+
+GtkWidget*      suggestion_entry_new                (void);
+
+void            suggestion_entry_set_model          (SuggestionEntry     *self,
+                                                     GListModel          *model);
+GListModel *    suggestion_entry_get_model          (SuggestionEntry     *self);
+
+void            suggestion_entry_set_factory        (SuggestionEntry     *self,
+                                                     GtkListItemFactory  *factory);
+GtkListItemFactory *
+                suggestion_entry_get_factory        (SuggestionEntry     *self);
+
+void            suggestion_entry_set_use_filter     (SuggestionEntry     *self,
+                                                     gboolean             use_ilter);
+gboolean        suggestion_entry_get_use_filter     (SuggestionEntry     *self);
+
+void            suggestion_entry_set_expression     (SuggestionEntry     *self,
+                                                     GtkExpression       *expression);
+GtkExpression * suggestion_entry_get_expression     (SuggestionEntry     *self);
+
+void            suggestion_entry_set_show_arrow     (SuggestionEntry     *self,
+                                                     gboolean             show_arrow);
+gboolean        suggestion_entry_get_show_arrow     (SuggestionEntry     *self);
+
+typedef void (* SuggestionEntryMatchFunc)           (MatchObject *object,
+                                                     const char  *search,
+                                                     gpointer     user_data);
+
+void            suggestion_entry_set_match_func     (SuggestionEntry          *self,
+                                                     SuggestionEntryMatchFunc  func,
+                                                     gpointer                  user_data,
+                                                     GDestroyNotify            destroy);
+
+G_END_DECLS

demos/gtk-demo/svgpaintable.c

@@ -0,0 +1,166 @@
+#include "svgpaintable.h"
+
+#include <gtk/gtk.h>
+#include <librsvg/rsvg.h>
+
+struct _SvgPaintable
+{
+  GObject parent_instance;
+  GFile *file;
+  RsvgHandle *handle;
+};
+
+struct _SvgPaintableClass
+{
+  GObjectClass parent_class;
+};
+
+enum {
+  PROP_FILE = 1,
+  NUM_PROPERTIES
+};
+
+static void
+svg_paintable_snapshot (GdkPaintable *paintable,
+                        GdkSnapshot  *snapshot,
+                        double        width,
+                        double        height)
+{
+  SvgPaintable *self = SVG_PAINTABLE (paintable);
+  cairo_t *cr;
+  GError *error = NULL;
+
+  cr = gtk_snapshot_append_cairo (GTK_SNAPSHOT (snapshot),
+                                  &GRAPHENE_RECT_INIT (0, 0, width, height));
+
+  if (!rsvg_handle_render_document (self->handle, cr,
+                                    &(RsvgRectangle) {0, 0, width, height},
+                                    &error))
+    {
+      g_error ("%s", error->message);
+    }
+
+  cairo_destroy (cr);
+}
+
+static int
+svg_paintable_get_intrinsic_width (GdkPaintable *paintable)
+{
+  SvgPaintable *self = SVG_PAINTABLE (paintable);
+  RsvgDimensionData data;
+
+  rsvg_handle_get_dimensions (self->handle, &data);
+
+  return data.width;
+}
+
+static int
+svg_paintable_get_intrinsic_height (GdkPaintable *paintable)
+{
+  SvgPaintable *self = SVG_PAINTABLE (paintable);
+  RsvgDimensionData data;
+
+  rsvg_handle_get_dimensions (self->handle, &data);
+
+  return data.height;
+}
+
+static void
+svg_paintable_init_interface (GdkPaintableInterface *iface)
+{
+  iface->snapshot = svg_paintable_snapshot;
+  iface->get_intrinsic_width = svg_paintable_get_intrinsic_width;
+  iface->get_intrinsic_height = svg_paintable_get_intrinsic_height;
+}
+
+G_DEFINE_TYPE_WITH_CODE (SvgPaintable, svg_paintable, G_TYPE_OBJECT,
+                         G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
+                                                svg_paintable_init_interface))
+
+static void
+svg_paintable_init (SvgPaintable *self)
+{
+}
+
+static void
+svg_paintable_dispose (GObject *object)
+{
+  SvgPaintable *self = SVG_PAINTABLE (object);
+
+  g_clear_object (&self->file);
+  g_clear_object (&self->handle);
+
+  G_OBJECT_CLASS (svg_paintable_parent_class)->dispose (object);
+}
+
+static void
+svg_paintable_set_property (GObject      *object,
+                            guint         prop_id,
+                            const GValue *value,
+                            GParamSpec   *pspec)
+{
+  SvgPaintable *self = SVG_PAINTABLE (object);
+
+  switch (prop_id)
+    {
+    case PROP_FILE:
+      {
+        GFile *file = g_value_get_object (value);
+        RsvgHandle *handle = rsvg_handle_new_from_gfile_sync (file,
+                                                              RSVG_HANDLE_FLAGS_NONE,
+                                                              NULL,
+                                                              NULL);
+        rsvg_handle_set_dpi (handle, 90);
+
+        g_set_object (&self->file, file);
+        g_set_object (&self->handle, handle);
+      }
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+static void
+svg_paintable_get_property (GObject    *object,
+                            guint       prop_id,
+                            GValue     *value,
+                            GParamSpec *pspec)
+{
+  SvgPaintable *self = SVG_PAINTABLE (object);
+
+  switch (prop_id)
+    {
+    case PROP_FILE:
+      g_value_set_object (value, self->file);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+    }
+}
+
+
+static void
+svg_paintable_class_init (SvgPaintableClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+
+  object_class->dispose = svg_paintable_dispose;
+  object_class->set_property = svg_paintable_set_property;
+  object_class->get_property = svg_paintable_get_property;
+
+  g_object_class_install_property (object_class, PROP_FILE,
+                                   g_param_spec_object ("file", "File", "File",
+                                                        G_TYPE_FILE,
+                                                        G_PARAM_READWRITE));
+}
+
+GdkPaintable *
+svg_paintable_new (GFile *file)
+{
+  return g_object_new (SVG_TYPE_PAINTABLE,
+                       "file", file,
+                       NULL);
+}

demos/gtk-demo/svgpaintable.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define SVG_TYPE_PAINTABLE (svg_paintable_get_type ())
+
+G_DECLARE_FINAL_TYPE (SvgPaintable, svg_paintable, SVG, PAINTABLE, GObject)
+
+GdkPaintable * svg_paintable_new (GFile *file);
+
+G_END_DECLS

demos/gtk-demo/tagged_entry.c

@@ -66,6 +66,7 @@ do_tagged_entry (GtkWidget *do_widget)
       gtk_window_set_display (GTK_WINDOW (window),
                               gtk_widget_get_display (do_widget));
       gtk_window_set_title (GTK_WINDOW (window), "Tagged Entry");
+      gtk_window_set_default_size (GTK_WINDOW (window), 260, -1);
       gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
 
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);

demos/gtk-demo/tagstyle.css

@@ -1,5 +1,5 @@
 tag {
-  margin: 4px;
+  margin: 4px 0px;
   padding: 4px;
   border-radius: 4px;
   background: lightskyblue;
@@ -17,3 +17,7 @@ tag button {
   padding: 0;
   border: 1px solid white;
 }
+
+entry.tagged {
+  border-spacing: 4px;
+}

demos/gtk-demo/themes.ui

@@ -11,6 +11,7 @@
   </object>
   <object class="GtkWindow" id="window">
     <property name="resizable">0</property>
+    <property name="title">Themes</property>
     <child type="titlebar">
       <object class="GtkHeaderBar" id="header">
         <child type="start">

demos/icon-browser/window.ui

@@ -13,9 +13,6 @@
     </section>
   </menu>
   <template class="IconBrowserWindow" parent="GtkApplicationWindow">
-    <style>
-      <class name="devel"/>
-    </style>
     <property name="title" translatable="yes">Icon Browser</property>
     <property name="default-width">1024</property>
     <property name="default-height">768</property>
@@ -66,11 +63,14 @@
       <object class="GtkBox">
         <child>
           <object class="GtkScrolledWindow">
+            <style>
+              <class name="sidebar"/>
+            </style>
             <property name="hscrollbar-policy">never</property>
             <child>
               <object class="GtkListView">
                 <style>
-                  <class name="navigation-sidebar" />
+                  <class name="navigation-sidebar"/>
                 </style>
                 <property name="model">
                   <object class="GtkSingleSelection" id="context_model">
@@ -108,11 +108,6 @@
             </child>
           </object>
         </child>
-        <child>
-          <object class="GtkSeparator">
-            <property name="orientation">vertical</property>
-          </object>
-        </child>
         <child>
           <object class="GtkBox" id="content_box">
             <property name="orientation">vertical</property>

demos/node-editor/help-window.ui

@@ -1,9 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
   <object class="GtkWindow" id="window">
-    <style>
-      <class name="devel"/>
-    </style>
     <property name="title" translatable="yes">Help</property>
     <property name="default-width">720</property>
     <property name="default-height">520</property>

demos/node-editor/node-editor-window.c

@@ -102,12 +102,11 @@ text_buffer_remove_all_tags (GtkTextBuffer *buffer)
 }
 
 static void
-deserialize_error_func (const GtkCssSection *section,
-                        const GError        *error,
-                        gpointer             user_data)
+deserialize_error_func (const GskParseLocation *start_location,
+                        const GskParseLocation *end_location,
+                        const GError           *error,
+                        gpointer                user_data)
 {
-  const GtkCssLocation *start_location = gtk_css_section_get_start_location (section);
-  const GtkCssLocation *end_location = gtk_css_section_get_end_location (section);
   NodeEditorWindow *self = user_data;
   GtkTextIter start_iter, end_iter;
   TextViewError text_view_error;
@@ -466,7 +465,7 @@ save_response_cb (GtkWidget        *dialog,
       text = get_current_text (self->text_buffer);
 
       file = gtk_file_chooser_get_file (GTK_FILE_CHOOSER (dialog));
-      g_file_replace_contents (file, text, -1,
+      g_file_replace_contents (file, text, strlen (text),
                                NULL, FALSE,
                                G_FILE_CREATE_NONE,
                                NULL,

demos/node-editor/node-editor-window.ui

@@ -94,9 +94,6 @@
   </object>
 
   <template class="NodeEditorWindow" parent="GtkApplicationWindow">
-    <style>
-      <class name="devel"/>
-    </style>
     <property name="title" translatable="yes">GTK Node Editor</property>
     <property name="default-width">1024</property>
     <property name="default-height">768</property>

demos/print-editor/print-editor.c

@@ -164,7 +164,7 @@ save_file (GFile *save_filename)
                            NULL,
                            &error);
 
-  if (error != NULL)
+  if (error == NULL)
     {
       if (save_filename != filename)
 	{
@@ -812,8 +812,6 @@ activate (GApplication *app)
   gtk_application_window_set_show_menubar (GTK_APPLICATION_WINDOW (main_window), TRUE);
   update_title (GTK_WINDOW (main_window));
 
-  gtk_widget_add_css_class (main_window, "devel");
-
   box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
   gtk_window_set_child (GTK_WINDOW (main_window), box);
 

demos/widget-factory/widget-factory.c

@@ -91,6 +91,16 @@ change_theme_state (GSimpleAction *action,
 
 static GtkWidget *page_stack;
 
+static void
+transition_speed_changed (GtkRange *range,
+                          gpointer  data)
+{
+  double value;
+
+  value = gtk_range_get_value (range);
+  gtk_stack_set_transition_duration (GTK_STACK (page_stack), (int)value);
+}
+
 static void
 change_transition_state (GSimpleAction *action,
                          GVariant      *state,
@@ -250,6 +260,8 @@ activate_about (GSimpleAction *action,
                 gpointer       user_data)
 {
   GtkApplication *app = user_data;
+  GtkWindow *window;
+  GtkWidget *button;
   const char *authors[] = {
     "Andrea Cimitan",
     "Cosimo Cecchi",
@@ -267,6 +279,10 @@ activate_about (GSimpleAction *action,
 
   s = g_string_new ("");
 
+  window = gtk_application_get_active_window (app);
+  button = GTK_WIDGET (g_object_get_data (G_OBJECT (window), "open_menubutton"));
+  gtk_menu_button_popdown (GTK_MENU_BUTTON (button));
+
   os_name = g_get_os_info (G_OS_INFO_KEY_NAME);
   os_version = g_get_os_info (G_OS_INFO_KEY_VERSION_ID);
   if (os_name && os_version)
@@ -292,6 +308,7 @@ activate_about (GSimpleAction *action,
 
   dialog = g_object_new (GTK_TYPE_ABOUT_DIALOG,
                          "transient-for", gtk_application_get_active_window (app),
+                         "modal", TRUE,
                          "program-name", "GTK Widget Factory",
                          "version", version,
                          "copyright", "© 1997—2020 The GTK Team",
@@ -315,6 +332,21 @@ activate_about (GSimpleAction *action,
   g_free (os_version);
 }
 
+static void
+activate_shortcuts_window (GSimpleAction *action,
+                           GVariant      *parameter,
+                           gpointer       user_data)
+{
+  GtkApplication *app = user_data;
+  GtkWindow *window;
+  GtkWidget *button;
+
+  window = gtk_application_get_active_window (app);
+  button = GTK_WIDGET (g_object_get_data (G_OBJECT (window), "open_menubutton"));
+  gtk_menu_button_popdown (GTK_MENU_BUTTON (button));
+  gtk_widget_activate_action (GTK_WIDGET (window), "win.show-help-overlay", NULL);
+}
+
 static void
 activate_quit (GSimpleAction *action,
                GVariant      *parameter,
@@ -2022,6 +2054,7 @@ activate (GApplication *app)
           "validate_more_details", (GCallback)validate_more_details,
           "mode_switch_state_set", (GCallback)mode_switch_state_set,
           "level_scale_value_changed", (GCallback)level_scale_value_changed,
+          "transition_speed_changed", (GCallback)transition_speed_changed,
           NULL);
   gtk_builder_set_scope (builder, scope);
   g_object_unref (scope);
@@ -2359,6 +2392,7 @@ main (int argc, char *argv[])
   GAction *action;
   static GActionEntry app_entries[] = {
     { "about", activate_about, NULL, NULL, NULL },
+    { "shortcuts", activate_shortcuts_window, NULL, NULL, NULL },
     { "quit", activate_quit, NULL, NULL, NULL },
     { "inspector", activate_inspector, NULL, NULL, NULL },
     { "main", NULL, "s", "'steak'", NULL },

demos/widget-factory/widget-factory.ui

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
-  <menu id="gear_menu">
+  <menu id="gear_menu_model">
     <section>
       <item>
         <attribute name="label" translatable="yes">Get Busy</attribute>
@@ -40,6 +40,9 @@
         <attribute name="label" translatable="yes">Transition Pages</attribute>
         <attribute name="action">win.transition</attribute>
       </item>
+      <item>
+        <attribute name="custom">transition-speed</attribute>
+      </item>
     </section>
     <section>
       <item>
@@ -48,7 +51,7 @@
       </item>
       <item>
         <attribute name="label" translatable="yes">_Keyboard Shortcuts</attribute>
-        <attribute name="action">win.show-help-overlay</attribute>
+        <attribute name="action">app.shortcuts</attribute>
       </item>
       <item>
         <attribute name="label" translatable="yes">_About Widget Factory</attribute>
@@ -430,9 +433,6 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
     </columns>
   </object>
   <object class="GtkApplicationWindow" id="window">
-    <style>
-      <class name="devel"/>
-    </style>
     <property name="title">GTK Widget Factory</property>
     <child type="titlebar">
       <object class="GtkHeaderBar" id="headerbar1">
@@ -444,7 +444,26 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
         <child type="end">
           <object class="GtkMenuButton" id="gear_menu_button">
             <property name="valign">center</property>
-            <property name="menu-model">gear_menu</property>
+            <property name="popover">
+              <object class="GtkPopoverMenu" id="gear_menu">
+                <property name="menu-model">gear_menu_model</property>
+                <child type="transition-speed">
+                  <object class="GtkScale">
+                    <property name="adjustment">
+                      <object class="GtkAdjustment">
+                        <property name="lower">0</property>
+                        <property name="upper">1000</property>
+                        <property name="value">250</property>
+                        <property name="step-increment">50</property>
+                        <property name="page-increment">50</property>
+                        <property name="page-size">0</property>
+                      </object>
+                    </property>
+                    <signal name="value-changed" handler="transition_speed_changed"/>
+                  </object>
+                </child>
+              </object>
+            </property>
             <property name="icon-name">open-menu-symbolic</property>
           </object>
         </child>
@@ -1123,7 +1142,7 @@ Suspendisse feugiat quam quis dolor accumsan cursus.</property>
                                     <child>
                                       <object class="GtkLabel">
                                         <property name="label">Caption</property>
-                                        <style><class name="Caption"/></style>
+                                        <style><class name="caption"/></style>
                                       </object>
                                     </child>
                                   </object>
@@ -3198,7 +3217,7 @@ bad things might happen.</property>
           <object class="GtkMenuButton">
             <property name="halign">end</property>
             <property name="icon-name">emblem-system-symbolic</property>
-            <property name="menu-model">gear_menu</property>
+            <property name="menu-model">gear_menu_model</property>
             <property name="tooltip-text">This is a menu button</property>
             <layout>
               <property name="column">1</property>
@@ -3282,246 +3301,6 @@ bad things might happen.</property>
       </object>
     </child>
   </object>
-  <object class="GtkPopover" id="new_style_menu">
-    <style><class name="menu"/></style>
-    <child>
-      <object class="GtkStack">
-        <child>
-          <object class="GtkStackPage">
-            <property name="name">main</property>
-            <property name="child">
-              <object class="GtkBox">
-                <property name="orientation">vertical</property>
-                <child>
-                  <object class="GtkBox">
-                    <style>
-                      <class name="circular-buttons"/>
-                    </style>
-                    <child>
-                      <object class="GtkModelButton">
-                        <property name="icon">
-                          <object class="GThemedIcon">
-                            <property name="name">printer-symbolic</property>
-                          </object>
-                        </property>
-                        <property name="iconic">1</property>
-                        <property name="action-name">win.print</property>
-                        <property name="hexpand">1</property>
-                        <property name="halign">center</property>
-                        <style>
-                          <class name="circular"/>
-                        </style>
-                      </object>
-                    </child>
-                    <child>
-                      <object class="GtkModelButton">
-                        <property name="icon">
-                          <object class="GThemedIcon">
-                            <property name="name">emblem-shared-symbolic</property>
-                          </object>
-                        </property>
-                        <property name="iconic">1</property>
-                        <property name="action-name">app.share</property>
-                        <property name="hexpand">1</property>
-                        <property name="halign">center</property>
-                        <style>
-                          <class name="circular"/>
-                        </style>
-                      </object>
-                    </child>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkSeparator"/>
-                </child>
-                <child>
-                  <object class="GtkModelButton">
-                    <property name="text">Open in New Window</property>
-                    <property name="action-name">app.open-in</property>
-                    <property name="indicator-size-group">main-indicators</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkSeparator"/>
-                </child>
-                <child>
-                  <object class="GtkBox">
-                    <style>
-                      <class name="inline-buttons"/>
-                    </style>
-                    <child>
-                      <object class="GtkLabel" id="cut_copy_paste_filler"/>
-                    </child>
-                    <child>
-                      <object class="GtkLabel">
-                        <property name="label">Edit</property>
-                        <property name="xalign">0</property>
-                        <property name="hexpand">1</property>
-                      </object>
-                    </child>
-                    <child>
-                      <object class="GtkModelButton">
-                        <property name="icon">
-                          <object class="GThemedIcon">
-                            <property name="name">edit-cut-symbolic</property>
-                          </object>
-                        </property>
-                        <property name="iconic">1</property>
-                      </object>
-                    </child>
-                    <child>
-                      <object class="GtkModelButton">
-                        <property name="icon">
-                          <object class="GThemedIcon">
-                            <property name="name">edit-copy-symbolic</property>
-                          </object>
-                        </property>
-                        <property name="iconic">1</property>
-                      </object>
-                    </child>
-                    <child>
-                      <object class="GtkModelButton">
-                        <property name="icon">
-                          <object class="GThemedIcon">
-                            <property name="name">edit-paste-symbolic</property>
-                          </object>
-                        </property>
-                        <property name="iconic">1</property>
-                      </object>
-                    </child>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkSeparator"/>
-                </child>
-                <child>
-                  <object class="GtkModelButton">
-                    <property name="text">Pin</property>
-                    <property name="action-name">app.pin</property>
-                    <property name="indicator-size-group">main-indicators</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkModelButton">
-                    <property name="text">Select Labels…</property>
-                    <property name="action-name">app.labels</property>
-                    <property name="indicator-size-group">main-indicators</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkModelButton">
-                    <property name="text">Share…</property>
-                    <property name="action-name">app.share</property>
-                    <property name="indicator-size-group">main-indicators</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkSeparator"/>
-                </child>
-                <child>
-                  <object class="GtkModelButton">
-                    <property name="text">Basement</property>
-                    <property name="menu-name">basement</property>
-                    <property name="indicator-size-group">main-indicators</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkSeparator"/>
-                </child>
-                <child>
-                  <object class="GtkModelButton">
-                    <property name="text">Large</property>
-                    <property name="action-name">app.size</property>
-                    <property name="action-target">&apos;large&apos;</property>
-                    <property name="indicator-size-group">main-indicators</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkModelButton">
-                    <property name="text">Medium</property>
-                    <property name="action-name">app.size</property>
-                    <property name="action-target">&apos;medium&apos;</property>
-                    <property name="indicator-size-group">main-indicators</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkModelButton">
-                    <property name="text">Small</property>
-                    <property name="action-name">app.size</property>
-                    <property name="action-target">&apos;small&apos;</property>
-                    <property name="indicator-size-group">main-indicators</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkSeparator"/>
-                </child>
-                <child>
-                  <object class="GtkModelButton">
-                    <property name="text">Move to Trash</property>
-                    <property name="action-name">win.delete</property>
-                    <property name="indicator-size-group">main-indicators</property>
-                  </object>
-                </child>
-              </object>
-            </property>
-          </object>
-        </child>
-        <child>
-          <object class="GtkStackPage">
-            <property name="name">basement</property>
-            <property name="child">
-              <object class="GtkBox">
-                <property name="orientation">vertical</property>
-                <child>
-                  <object class="GtkModelButton">
-                    <property name="text">Basement</property>
-                    <property name="role">title</property>
-                    <property name="menu-name">main</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkSeparator"/>
-                </child>
-                <child>
-                  <object class="GtkModelButton">
-                    <property name="text">Berk</property>
-                    <property name="action-name">app.berk</property>
-                    <property name="indicator-size-group">basement-indicators</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkModelButton">
-                    <property name="text">Broni</property>
-                    <property name="action-name">app.broni</property>
-                    <property name="indicator-size-group">basement-indicators</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkModelButton">
-                    <property name="text">Drutt</property>
-                    <property name="action-name">app.drutt</property>
-                    <property name="indicator-size-group">basement-indicators</property>
-                  </object>
-                </child>
-                <child>
-                  <object class="GtkModelButton">
-                    <property name="text">The Thing Upstairs</property>
-                    <property name="action-name">app.upstairs</property>
-                    <property name="indicator-size-group">basement-indicators</property>
-                  </object>
-                </child>
-              </object>
-            </property>
-          </object>
-        </child>
-      </object>
-    </child>
-  </object>
-  <object class="GtkSizeGroup" id="main-indicators">
-    <widgets>
-      <widget name="cut_copy_paste_filler"/>
-    </widgets>
-  </object>
   <object class="GtkSizeGroup" id="basement-indicators"/>
   <menu id="new_style_menu_model">
     <section>

docs/reference/gdk/gdk4-docs.xml

@@ -16,14 +16,16 @@
     </releaseinfo>
   </bookinfo>
 
-  <reference id="reference">
+  <chapter>
     <title>API Reference</title>
     <xi:include href="xml/general.xml" />
     <xi:include href="xml/gdkdisplaymanager.xml" />
     <xi:include href="xml/gdkdisplay.xml" />
     <xi:include href="xml/gdkseat.xml" />
     <xi:include href="xml/gdkdevice.xml" />
-    <xi:include href="xml/gdkdevicepad.xml" />
+    <section>
+      <xi:include href="xml/gdkdevicepad.xml" />
+    </section>
     <xi:include href="xml/gdkmonitor.xml" />
     <xi:include href="xml/regions.xml" />
     <xi:include href="xml/textures.xml" />
@@ -32,16 +34,24 @@
     <xi:include href="xml/cursors.xml" />
     <xi:include href="xml/gdksurface.xml" />
     <xi:include href="xml/gdktoplevel.xml" />
-    <xi:include href="xml/gdktoplevellayout.xml" />
-    <xi:include href="xml/gdktoplevelsize.xml" />
+    <section>
+      <xi:include href="xml/gdktoplevellayout.xml" />
+      <xi:include href="xml/gdktoplevelsize.xml" />
+    </section>
     <xi:include href="xml/gdkpopup.xml" />
-    <xi:include href="xml/gdkpopuplayout.xml" />
+    <section>
+      <xi:include href="xml/gdkpopuplayout.xml" />
+    </section>
     <xi:include href="xml/gdkframeclock.xml" />
-    <xi:include href="xml/gdkframetimings.xml" />
+    <section>
+      <xi:include href="xml/gdkframetimings.xml" />
+    </section>
     <xi:include href="xml/gdkdrawcontext.xml" />
-    <xi:include href="xml/gdkglcontext.xml" />
-    <xi:include href="xml/gdkvulkancontext.xml" />
-    <xi:include href="xml/gdkcairocontext.xml" />
+    <section>
+      <xi:include href="xml/gdkglcontext.xml" />
+      <xi:include href="xml/gdkvulkancontext.xml" />
+      <xi:include href="xml/gdkcairocontext.xml" />
+    </section>
     <xi:include href="xml/events.xml" />
     <xi:include href="xml/keys.xml" />
     <xi:include href="xml/gdkclipboard.xml" />
@@ -50,13 +60,16 @@
     <xi:include href="xml/gdkcontentprovider.xml" />
     <xi:include href="xml/gdkcontentserializer.xml" />
     <xi:include href="xml/gdkcontentdeserializer.xml" />
-    <xi:include href="xml/gdkapplaunchcontext.xml" />
     <xi:include href="xml/pixbufs.xml" />
     <xi:include href="xml/pango_interaction.xml" />
     <xi:include href="xml/cairo_interaction.xml" />
+  </chapter>
+  <chapter>
+    <title>GDK Platform Support</title>
+    <xi:include href="xml/gdkapplaunchcontext.xml" />
     <xi:include href="xml/x_interaction.xml" />
     <xi:include href="xml/wayland_interaction.xml" />
-  </reference>
+  </chapter>
 
   <index id="api-index-full">
     <title>Index of all symbols</title>

docs/reference/gdk/gdk4-overrides.txt

@@ -10,8 +10,8 @@
 </MACRO>
 
 <MACRO>
-<NAME>GDK_WINDOWING_QUARTZ</NAME>
-#define GDK_WINDOWING_QUARTZ
+<NAME>GDK_WINDOWING_MACOS</NAME>
+#define GDK_WINDOWING_MACOS
 </MACRO>
 
 <MACRO>

docs/reference/gdk/gdk4-sections.txt

@@ -8,7 +8,7 @@
 <SUBSECTION>
 GDK_WINDOWING_X11
 GDK_WINDOWING_WIN32
-GDK_WINDOWING_QUARTZ
+GDK_WINDOWING_MACOS
 GDK_WINDOWING_WAYLAND
 
 <SUBSECTION>
@@ -303,11 +303,8 @@ gdk_cairo_draw_from_gl
 </SECTION>
 
 <SECTION>
-<TITLE>Points, Rectangles and Regions</TITLE>
+<TITLE>Rectangles and Regions</TITLE>
 <FILE>regions</FILE>
-GdkPoint
-
-<SUBSECTION>
 GdkRectangle
 gdk_rectangle_intersect
 gdk_rectangle_union
@@ -968,7 +965,7 @@ gdk_wayland_seat_get_wl_seat
 gdk_wayland_device_get_wl_seat
 gdk_wayland_device_get_wl_pointer
 gdk_wayland_device_get_wl_keyboard
-gdk_wayland_device_get_node_ath
+gdk_wayland_device_get_node_path
 
 <SUBSECTION Monitor>
 gdk_wayland_monitor_get_wl_output

docs/reference/gsk/gsk4-docs.xml

@@ -23,6 +23,13 @@
     <xi:include href="xml/GskGLShader.xml" />
   </reference>
 
+  <part id="paths">
+    <title>Paths</title>
+    <xi:include href="xml/GskPath.xml" />
+    <xi:include href="xml/GskPathBuilder.xml" />
+    <xi:include href="xml/GskStroke.xml" />
+  </part>
+
   <index id="api-index-full">
     <title>Index of all symbols</title>
     <xi:include href="xml/api-index-full.xml"><xi:fallback /></xi:include>

docs/reference/gsk/gsk4-sections.txt

@@ -62,97 +62,123 @@ gsk_render_node_write_to_file
 GskScalingFilter
 gsk_render_node_get_bounds
 
-<SUBSECTION Nodes>
+<SUBSECTION>
 gsk_color_node_new
-gsk_color_node_peek_color
+gsk_color_node_get_color
 gsk_texture_node_new
 gsk_texture_node_get_texture
+<SUBSECTION>
 GskColorStop
 gsk_linear_gradient_node_new
-gsk_linear_gradient_node_peek_start
-gsk_linear_gradient_node_peek_end
-gsk_linear_gradient_node_get_n_color_stops
-gsk_linear_gradient_node_peek_color_stops
 gsk_repeating_linear_gradient_node_new
+gsk_linear_gradient_node_get_start
+gsk_linear_gradient_node_get_end
+gsk_linear_gradient_node_get_n_color_stops
+gsk_linear_gradient_node_get_color_stops
+<SUBSECTION>
 gsk_radial_gradient_node_new
+gsk_repeating_radial_gradient_node_new
 gsk_radial_gradient_node_get_n_color_stops
-gsk_radial_gradient_node_peek_color_stops
+gsk_radial_gradient_node_get_color_stops
 gsk_radial_gradient_node_get_start
 gsk_radial_gradient_node_get_end
 gsk_radial_gradient_node_get_hradius
 gsk_radial_gradient_node_get_vradius
-gsk_radial_gradient_node_peek_center
-gsk_repeating_radial_gradient_node_new
+gsk_radial_gradient_node_get_center
+<SUBSECTION>
 gsk_border_node_new
-gsk_border_node_peek_outline
-gsk_border_node_peek_widths
-gsk_border_node_peek_colors
+gsk_border_node_get_outline
+gsk_border_node_get_widths
+gsk_border_node_get_colors
+<SUBSECTION>
 gsk_inset_shadow_node_new
-gsk_inset_shadow_node_peek_outline
-gsk_inset_shadow_node_peek_color
+gsk_inset_shadow_node_get_outline
+gsk_inset_shadow_node_get_color
 gsk_inset_shadow_node_get_dx
 gsk_inset_shadow_node_get_dy
 gsk_inset_shadow_node_get_spread
 gsk_inset_shadow_node_get_blur_radius
+<SUBSECTION>
 gsk_outset_shadow_node_new
-gsk_outset_shadow_node_peek_outline
-gsk_outset_shadow_node_peek_color
+gsk_outset_shadow_node_get_outline
+gsk_outset_shadow_node_get_color
 gsk_outset_shadow_node_get_dx
 gsk_outset_shadow_node_get_dy
 gsk_outset_shadow_node_get_spread
 gsk_outset_shadow_node_get_blur_radius
+<SUBSECTION>
 gsk_cairo_node_new
 gsk_cairo_node_get_draw_context
-gsk_cairo_node_peek_surface
+gsk_cairo_node_get_surface
+<SUBSECTION>
 gsk_container_node_new
 gsk_container_node_get_n_children
 gsk_container_node_get_child
+<SUBSECTION>
 gsk_transform_node_new
 gsk_transform_node_get_child
 gsk_transform_node_get_transform
+<SUBSECTION>
 gsk_opacity_node_new
 gsk_opacity_node_get_child
 gsk_opacity_node_get_opacity
+<SUBSECTION>
 gsk_color_matrix_node_new
 gsk_color_matrix_node_get_child
-gsk_color_matrix_node_peek_color_matrix
-gsk_color_matrix_node_peek_color_offset
+gsk_color_matrix_node_get_color_matrix
+gsk_color_matrix_node_get_color_offset
+<SUBSECTION>
 gsk_repeat_node_new
 gsk_repeat_node_get_child
-gsk_repeat_node_peek_child_bounds
+gsk_repeat_node_get_child_bounds
+<SUBSECTION>
 gsk_clip_node_new
 gsk_clip_node_get_child
-gsk_clip_node_peek_clip
+gsk_clip_node_get_clip
+<SUBSECTION>
 gsk_rounded_clip_node_new
 gsk_rounded_clip_node_get_child
-gsk_rounded_clip_node_peek_clip
+gsk_rounded_clip_node_get_clip
+<SUBSECTION>
+GskFillRule
+gsk_fill_node_new
+gsk_fill_node_get_child
+gsk_fill_node_get_path
+gsk_fill_node_get_fill_rule
+<SUBSECTION>
 GskShadow
 gsk_shadow_node_new
-gsk_shadow_node_peek_shadow
+gsk_shadow_node_get_shadow
 gsk_shadow_node_get_n_shadows
 gsk_shadow_node_get_child
+<SUBSECTION>
 GskBlendMode
 gsk_blend_node_new
 gsk_blend_node_get_bottom_child
 gsk_blend_node_get_top_child
 gsk_blend_node_get_blend_mode
+<SUBSECTION>
 gsk_cross_fade_node_new
 gsk_cross_fade_node_get_start_child
 gsk_cross_fade_node_get_end_child
 gsk_cross_fade_node_get_progress
+<SUBSECTION>
 gsk_text_node_new
-gsk_text_node_peek_font
-gsk_text_node_peek_glyphs
-gsk_text_node_peek_color
+gsk_text_node_get_font
+gsk_text_node_get_glyphs
+gsk_text_node_get_color
 gsk_text_node_has_color_glyphs
 gsk_text_node_get_num_glyphs
 gsk_text_node_get_offset
+<SUBSECTION>
 gsk_blur_node_new
 gsk_blur_node_get_child
 gsk_blur_node_get_radius
+<SUBSECTION>
 gsk_debug_node_new
 gsk_debug_node_get_child
 gsk_debug_node_get_message
+<SUBSECTION>
 gsk_gl_shader_node_new
 gsk_gl_shader_node_get_n_children
 gsk_gl_shader_node_get_child
@@ -172,6 +198,7 @@ GSK_TYPE_COLOR_NODE
 GSK_TYPE_CONTAINER_NODE
 GSK_TYPE_CROSS_FADE_NODE
 GSK_TYPE_DEBUG_NODE
+GSK_TYPE_FILL_NODE
 GSK_TYPE_INSET_SHADOW_NODE
 GSK_TYPE_LINEAR_GRADIENT_NODE
 GSK_TYPE_OPACITY_NODE
@@ -197,6 +224,7 @@ gsk_color_node_get_type
 gsk_container_node_get_type
 gsk_cross_fade_node_get_type
 gsk_debug_node_get_type
+gsk_fill_node_get_type
 gsk_inset_shadow_node_get_type
 gsk_linear_gradient_node_get_type
 gsk_opacity_node_get_type
@@ -234,6 +262,66 @@ gsk_rounded_rect_contains_rect
 gsk_rounded_rect_intersects_rect
 </SECTION>
 
+<SECTION>
+<FILE>GskPath</FILE>
+<SUBSECTION>
+GskPath
+gsk_path_ref
+gsk_path_unref
+gsk_path_new_rect
+gsk_path_new_from_cairo
+<SUBSECTION>
+gsk_path_print
+gsk_path_to_string
+gsk_path_to_cairo
+<SUBSECTION>
+gsk_path_is_empty
+gsk_path_get_bounds
+<SUBSECTION Private>
+GSK_TYPE_PATH
+gsk_path_get_type
+</SECTION>
+
+<SECTION>
+<FILE>GskPathBuilder</FILE>
+GskPathBuilder
+gsk_path_builder_new
+gsk_path_builder_ref
+gsk_path_builder_unref
+gsk_path_builder_to_path
+gsk_path_builder_free_to_path
+<SUBSECTION>
+gsk_path_builder_add_rect
+<SUBSECTION>
+gsk_path_builder_move_to
+gsk_path_builder_line_to
+gsk_path_builder_curve_to
+gsk_path_builder_conic_to
+gsk_path_builder_close
+<SUBSECTION Private>
+GSK_TYPE_PATH_BUILDER
+gsk_path_builder_get_type
+</SECTION>
+
+<SECTION>
+<FILE>GskStroke</FILE>
+GskLineCap
+GskLineJoin
+gsk_stroke_new
+gsk_stroke_copy
+gsk_stroke_free
+gsk_stroke_equal
+gsk_stroke_set_line_width
+gsk_stroke_get_line_width
+gsk_stroke_set_line_cap
+gsk_stroke_get_line_cap
+gsk_stroke_set_line_join
+gsk_stroke_get_line_join
+<SUBSECTION Private>
+GSK_TYPE_STROKE
+gsk_stroke_get_type
+</SECTION>
+
 <SECTION>
 <FILE>GskTransform</FILE>
 GskTransform

docs/reference/gtk/building.md

@@ -107,7 +107,9 @@ The `plain` build type provided by Meson should only be used when
 packaging GTK, and it's expected that packagers will provide their
 own compiler flags when building GTK. See the previous section for
 the list of environment variables to be used to define compiler and
-linker flags.
+linker flags. Note that with the plain build type, you are also
+responsible for controlling the debugging features of GTK with
+`-DG_ENABLE_DEBUG` and `-DG_DISABLE_CAST_CHECKS`.
 
 ## Dependencies {#dependencies}
 
@@ -159,7 +161,8 @@ Other libraries are maintained separately.
   fonts and matching them against font names.
 - [Cairo](https://www.cairographics.org) is a graphics library that
   supports vector graphics and image compositing. Both Pango and GTK
-  use Cairo for drawing.
+  use Cairo for drawing. Note that we also need the auxiliary cairo-gobject
+  library.
 - [libepoxy](https://github.com/anholt/libepoxy) is a library that
   abstracts the differences between different OpenGL libraries. GTK
   uses it for cross-platform GL support and for its own drawing.

docs/reference/gtk/getting_started.md

@@ -586,53 +586,53 @@ print_hello (GtkWidget *widget,
 }
 
 static void
-quit_cb (GtkWidget *widget, gpointer data)
+quit_cb (GtkWindow *window)
 {
-  gboolean *done = data;
-
-  *done = TRUE;
-
-  g_main_context_wakeup (NULL);
+  gtk_window_close (window);
 }
 
-int
-main (int   argc,
-      char *argv[])
+static void
+activate (GtkApplication *app,
+          gpointer        user_data)
 {
-  GtkBuilder *builder;
-  GObject *window;
-  GObject *button;
-  gboolean done = FALSE;
-
-#ifdef GTK_SRCDIR
-  g_chdir (GTK_SRCDIR);
-#endif
-
-  gtk_init ();
-
   /* Construct a GtkBuilder instance and load our UI description */
-  builder = gtk_builder_new ();
+  GtkBuilder *builder = gtk_builder_new ();
   gtk_builder_add_from_file (builder, "builder.ui", NULL);
 
   /* Connect signal handlers to the constructed widgets. */
-  window = gtk_builder_get_object (builder, "window");
-  g_signal_connect (window, "destroy", G_CALLBACK (quit_cb), &done);
+  GObject *window = gtk_builder_get_object (builder, "window");
+  gtk_window_set_application (GTK_WINDOW (window), app);
 
-  button = gtk_builder_get_object (builder, "button1");
+  GObject *button = gtk_builder_get_object (builder, "button1");
   g_signal_connect (button, "clicked", G_CALLBACK (print_hello), NULL);
 
   button = gtk_builder_get_object (builder, "button2");
   g_signal_connect (button, "clicked", G_CALLBACK (print_hello), NULL);
 
   button = gtk_builder_get_object (builder, "quit");
-  g_signal_connect (button, "clicked", G_CALLBACK (quit_cb), &done);
+  g_signal_connect_swapped (button, "clicked", G_CALLBACK (quit_cb), window);
 
   gtk_widget_show (GTK_WIDGET (window));
 
-  while (!done)
-    g_main_context_iteration (NULL, TRUE);
+  /* We do not need the builder any more */
+  g_object_unref (builder);
+}
 
-  return 0;
+int
+main (int   argc,
+      char *argv[])
+{
+#ifdef GTK_SRCDIR
+  g_chdir (GTK_SRCDIR);
+#endif
+
+  GtkApplication *app = gtk_application_new ("org.gtk.example", G_APPLICATION_FLAGS_NONE);
+  g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
+
+  int status = g_application_run (G_APPLICATION (app), argc, argv);
+  g_object_unref (app);
+
+  return status;
 }
 ```
 

docs/reference/gtk/gtk4-sections.txt

@@ -1432,6 +1432,7 @@ GTK_TYPE_BOOKMARK_LIST
 <FILE>gtkfilter</FILE>
 <TITLE>GtkFilter</TITLE>
 GtkFilter
+GtkFilterMatch
 gtk_filter_match
 gtk_filter_get_strictness
 <SUBSECTION>
@@ -2107,6 +2108,7 @@ gtk_native_dialog_get_type
 <TITLE>GtkNotebook</TITLE>
 GtkNotebook
 GtkNotebookPage
+GtkNotebookTab
 gtk_notebook_new
 gtk_notebook_get_page
 gtk_notebook_get_pages
@@ -2163,7 +2165,6 @@ GTK_NOTEBOOK_GET_CLASS
 <SUBSECTION Private>
 gtk_notebook_get_type
 gtk_notebook_page_get_type
-GtkNotebookTab
 GtkNotebookPrivate
 </SECTION>
 
@@ -4303,6 +4304,8 @@ gtk_snapshot_push_color_matrix
 gtk_snapshot_push_repeat
 gtk_snapshot_push_clip
 gtk_snapshot_push_rounded_clip
+gtk_snapshot_push_fill
+gtk_snapshot_push_stroke
 gtk_snapshot_push_cross_fade
 gtk_snapshot_push_blend
 gtk_snapshot_push_blur
@@ -4335,7 +4338,6 @@ gtk_snapshot_render_background
 gtk_snapshot_render_frame
 gtk_snapshot_render_focus
 gtk_snapshot_render_layout
-gtk_snapshot_render_insertion_cursor
 <SUBSECTION Private>
 gtk_snapshot_get_type
 </SECTION>
@@ -4845,7 +4847,6 @@ gtk_render_line
 gtk_render_option
 gtk_render_activity
 gtk_render_icon
-gtk_render_insertion_cursor
 
 <SUBSECTION Standard>
 GTK_TYPE_STYLE_CONTEXT
@@ -6177,6 +6178,8 @@ gtk_popover_menu_new_from_model
 gtk_popover_menu_new_from_model_full
 gtk_popover_menu_set_menu_model
 gtk_popover_menu_get_menu_model
+gtk_popover_menu_add_child
+gtk_popover_menu_remove_child
 
 <SUBSECTION Standard>
 GTK_TYPE_POPOVER_MENU
@@ -6195,6 +6198,8 @@ GtkPopoverMenuBar
 gtk_popover_menu_bar_new_from_model
 gtk_popover_menu_bar_set_menu_model
 gtk_popover_menu_bar_get_menu_model
+gtk_popover_menu_bar_add_child
+gtk_popover_menu_bar_remove_child
 
 <SUBSECTION Standard>
 GTK_TYPE_POPOVER_MENU_BAR