Add a reverse list model

This is a simple wrapper list model that reverses the order of items in the child model.
Merge branch 'gl-linear' into 'master'
2020-09-07 22:05:11 -04:00 · 2020-09-07 21:27:09 +00:00 · 2020-09-07 14:22:47 -04:00 · 2020-09-07 17:03:27 +00:00 · 2020-09-07 11:18:45 -04:00 · 2020-09-07 11:18:45 -04:00
1938 changed files with 154665 additions and 171681 deletions
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -16,11 +16,11 @@ stages:

 # Common variables
 variables:
-  COMMON_MESON_FLAGS: "--fatal-meson-warnings --werror"
-  BACKEND_FLAGS: "-Dx11-backend=true -Dwayland-backend=true -Dbroadway-backend=true -Dvulkan=yes"
-  FEATURE_FLAGS: "-Dcloudproviders=true"
-  MESON_TEST_TIMEOUT_MULTIPLIER: 2
-  FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora:v17"
+  COMMON_MESON_FLAGS: "--fatal-meson-warnings -Dgtk:werror=true"
+  BACKEND_FLAGS: "-Dx11-backend=true -Dwayland-backend=true -Dbroadway-backend=true"
+  FEATURE_FLAGS: "-Dvulkan=enabled -Dcloudproviders=enabled"
+  MESON_TEST_TIMEOUT_MULTIPLIER: 3
+  FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora:v22"
  FLATPAK_IMAGE: "registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master"
  DOCS_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora-docs:v19"

@@ -68,11 +68,13 @@ style-check-diff:
 fedora-x86_64:
  extends: .build-fedora-default
  stage: build
+  needs: []
  variables:
    EXTRA_MESON_FLAGS: "--buildtype=debug --default-library=both"
  script:
+    - meson subprojects update
    - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} ${BACKEND_FLAGS} ${FEATURE_FLAGS}
-            -Dprofiler=true
+            -Dsysprof=enabled
            _build
    - ninja -C _build
    - .gitlab-ci/run-tests.sh _build x11
@@ -82,14 +84,38 @@ fedora-x86_64:
 release-build:
  extends: .build-fedora-default
  stage: build
+  needs: []
  variables:
    EXTRA_MESON_FLAGS: "--buildtype=release"
  script:
+    - meson subprojects update
    - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} ${BACKEND_FLAGS} ${FEATURE_FLAGS}
            _build
    - ninja -C _build
    - .gitlab-ci/run-tests.sh _build x11

+installed-tests:
+  extends: .build-fedora-default
+  stage: build
+  needs: []
+  variables:
+    EXTRA_MESON_FLAGS: "--prefix=/usr --libdir=/usr/lib64 -Dinstall-tests=true"
+  script:
+    - meson subprojects update
+    - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} ${BACKEND_FLAGS} ${FEATURE_FLAGS}
+            _build
+    - ninja -C _build
+    - sudo ninja -C _build install
+    - dbus-run-session xvfb-run -a -s "-screen 0 1024x768x24"
+            gnome-desktop-testing-runner
+                   --report-directory=_build/installed-tests-report/failed/
+                   --parallel=0
+                   gtk-4.0
+  artifacts:
+    paths:
+      - "_build/installed-tests-report/"
+
+
 .mingw-defaults:
  stage: build
  tags:
@@ -109,6 +135,7 @@ release-build:

 msys2-mingw64:
  extends: .mingw-defaults
+  needs: []
  variables:
    MSYSTEM: "MINGW64"
    CHERE_INVOKING: "yes"
@@ -139,37 +166,44 @@ msys2-mingw64:

 flatpak-manual:demo:
  extends: .flatpak-manual
+  needs: []
  variables:
    APPID: org.gtk.Demo4

 flatpak-master:demo:
  extends: .flatpak-master
+  needs: []
  variables:
    APPID: org.gtk.Demo4

 flatpak-manual:widget-factory:
  extends: .flatpak-manual
+  needs: []
  variables:
    APPID: org.gtk.WidgetFactory4

 flatpak-master:widget-factory:
  extends: .flatpak-master
+  needs: []
  variables:
    APPID: org.gtk.WidgetFactory4

 flatpak-manual:icon-browser:
  extends: .flatpak-manual
+  needs: []
  variables:
    APPID: org.gtk.IconBrowser4

 flatpak-master:icon-browser:
  extends: .flatpak-master
+  needs: []
  variables:
    APPID: org.gtk.IconBrowser4

 static-scan:
  image: $FEDORA_IMAGE
  stage: analysis
+  needs: []
  variables:
    EXTRA_MESON_FLAGS: "--buildtype=debug"
  script:
@@ -180,9 +214,27 @@ static-scan:
      - _scan_build/meson-logs
  allow_failure: true

+# Run tests with the address sanitizer. We need to turn off introspection,
+# since it is incompatible with asan
+asan-build:
+  image: $FEDORA_IMAGE
+  tags: [ asan ]
+  stage: analysis
+  needs: []
+  variables:
+  script:
+    - CC=clang meson --buildtype=debugoptimized -Db_sanitize=address -Db_lundef=false -Dintrospection=false _build
+    - ninja -C _build
+    - .gitlab-ci/run-tests.sh _build wayland
+  artifacts:
+    paths:
+      - _build/meson-logs
+  allow_failure: true
+
 reference:
  image: $DOCS_IMAGE
  stage: docs
+  needs: []
  variables:
    EXTRA_MESON_FLAGS: "--buildtype=release"
  script:
@@ -198,6 +250,7 @@ reference:

 pages:
  stage: deploy
+  needs: ['reference']
  script:
    - mv _reference/ public/
  artifacts:
--- a/.gitlab-ci/.lock
+++ b/.gitlab-ci/.lock
--- a/.gitlab-ci/README.md
+++ b/.gitlab-ci/README.md
@@ -35,4 +35,13 @@ branch, as well as their available versions.
 - [ ] Add the new job to `.gitlab-ci.yml` referencing the image
 - [ ] Open a merge request with your changes and let it run

+### Checklist for Adding a new dependency to a CI image
+
+Our images are layered, and the base (called fedora-base) contains
+all the rpm payload. Therefore, adding a new dependency is a 2-step
+process:
+
+ 1. [ ] Build and upload fedora-base:$version+1
+ 1. [ ] Build and upload fedora:$version+1 based on fedora-base:version+1
+
 [registry]: https://gitlab.gnome.org/GNOME/gtk/container_registry
--- a/.gitlab-ci/fedora-base.Dockerfile
+++ b/.gitlab-ci/fedora-base.Dockerfile
@@ -29,6 +29,7 @@ RUN dnf -y install \
    glib2-static \
    glibc-devel \
    glibc-headers \
+    gnome-desktop-testing \
    gobject-introspection-devel \
    graphene-devel \
    gstreamer1-devel \
@@ -41,12 +42,14 @@ RUN dnf -y install \
    itstool \
    json-glib-devel \
    lcov \
+    libasan \
    libattr-devel \
    libepoxy-devel \
    libffi-devel \
    libmount-devel \
    librsvg2 \
    libselinux-devel \
+    libubsan \
    libXcomposite-devel \
    libXcursor-devel \
    libXcursor-devel \
@@ -73,7 +76,6 @@ RUN dnf -y install \
    python3-wheel \
    redhat-rpm-config \
    sassc \
-    sysprof-devel \
    systemtap-sdt-devel \
    vulkan-devel \
    wayland-devel \
--- a/.gitlab-ci/fedora.Dockerfile
+++ b/.gitlab-ci/fedora.Dockerfile
@@ -1,8 +1,11 @@
-FROM registry.gitlab.gnome.org/gnome/gtk/fedora-base:v19
+FROM registry.gitlab.gnome.org/gnome/gtk/fedora-base:v21
+
+# Enable sudo for wheel users
+RUN sed -i -e 's/# %wheel/%wheel/' -e '0,/%wheel/{s/%wheel/# %wheel/}' /etc/sudoers

 ARG HOST_USER_ID=5555
 ENV HOST_USER_ID ${HOST_USER_ID}
-RUN useradd -u $HOST_USER_ID -ms /bin/bash user
+RUN useradd -u $HOST_USER_ID -G wheel -ms /bin/bash user

 USER user
 WORKDIR /home/user
--- a/.gitlab-ci/run-tests.sh
+++ b/.gitlab-ci/run-tests.sh
@@ -7,14 +7,17 @@ srcdir=$( pwd )
 builddir=$1
 backend=$2

+# Ignore memory leaks lower in dependencies
+export LSAN_OPTIONS=suppressions=$srcdir/lsan.supp
+
 case "${backend}" in
  x11)
-    xvfb-run -a -s "-screen 0 1024x768x24" \
+    xvfb-run -a -s "-screen 0 1024x768x24 -noreset" \
          meson test -C ${builddir} \
+                --timeout-multiplier "${MESON_TEST_TIMEOUT_MULTIPLIER}" \
                --print-errorlogs \
                --setup=${backend} \
                --suite=gtk \
-                --no-suite=gtk:a11y \
                --no-suite=gsk-compare-broadway

    # Store the exit code for the CI run, but always
@@ -30,10 +33,10 @@ case "${backend}" in
    export WAYLAND_DISPLAY=wayland-5

    meson test -C ${builddir} \
+                --timeout-multiplier "${MESON_TEST_TIMEOUT_MULTIPLIER}" \
                --print-errorlogs \
                --setup=${backend} \
                --suite=gtk \
-                --no-suite=gtk:a11y \
                --no-suite=gsk-compare-broadway

    exit_code=$?
@@ -48,10 +51,10 @@ case "${backend}" in
    export BROADWAY_DISPLAY=:5

    meson test -C ${builddir} \
+                --timeout-multiplier "${MESON_TEST_TIMEOUT_MULTIPLIER}" \
                --print-errorlogs \
                --setup=${backend} \
                --suite=gtk \
-                --no-suite=gtk:a11y \
                --no-suite=gsk-compare-opengl

    # don't let Broadway failures fail the run, for now
--- a/.gitlab-ci/test-msys2.sh
+++ b/.gitlab-ci/test-msys2.sh
@@ -33,17 +33,29 @@ pacman --noconfirm -S --needed \
    mingw-w64-$MSYS2_ARCH-gst-plugins-bad \
    mingw-w64-$MSYS2_ARCH-shared-mime-info

-# https://gitlab.gnome.org/GNOME/gtk/issues/2243
-wget "https://gitlab.gnome.org/creiter/gitlab-ci-win32-runner-v2/raw/master/pango/mingw-w64-$MSYS2_ARCH-pango-git-1.44.7.90.ge48ae523-1-any.pkg.tar.zst"
-pacman --noconfirm -U "mingw-w64-$MSYS2_ARCH-pango-git-1.44.7.90.ge48ae523-1-any.pkg.tar.zst"
-
-# https://github.com/msys2/MINGW-packages/pull/6465
-pacman --noconfirm -S --needed mingw-w64-$MSYS2_ARCH-brotli
-
 mkdir -p _ccache
 export CCACHE_BASEDIR="$(pwd)"
 export CCACHE_DIR="${CCACHE_BASEDIR}/_ccache"

+# https://gitlab.gnome.org/GNOME/gtk/-/issues/2243
+# https://gitlab.gnome.org/GNOME/gtk/-/issues/3002
+
+if ! pkg-config --atleast-version=2.65.0 glib-2.0; then
+    git clone https://gitlab.gnome.org/GNOME/glib.git _glib
+    meson setup _glib_build _glib
+    meson compile -C _glib_build
+    meson install -C _glib_build
+fi
+pkg-config --modversion glib-2.0
+
+if ! pkg-config --atleast-version=1.45.4 pango; then
+    git clone https://gitlab.gnome.org/GNOME/pango.git _pango
+    meson setup _pango_build _pango
+    meson compile -C _pango_build
+    meson install -C _pango_build
+fi
+pkg-config --modversion pango
+
 # Build
 ccache --zero-stats
 ccache --show-stats
@@ -54,9 +66,9 @@ meson \
    -Dx11-backend=false \
    -Dwayland-backend=false \
    -Dwin32-backend=true \
-    -Dvulkan=no \
+    -Dvulkan=disabled \
    -Dintrospection=false \
-    --werror \
+    -Dgtk:werror=true \
    _build
 unset CCACHE_DISABLE

--- a/214
+++ b/214
@@ -1,3 +1,217 @@
+Overview of Changes in GTK 3.99.1
+=================================
+
+* GtkGridLayout: Rename left-/top-attach to column/row
+
+* Drop GtkAccelLabel - it is no longer used
+
+* GtkTextView:
+ - Fix redraw issues with selections
+ - Make insert-emoji replace the selection
+
+* GtkTreeView:
+ - Fix selection handling in cell editables
+
+* GtkPopover:
+ - Allow setting popup offset
+
+* GtkPlacesSidebar:
+ - Fix DND
+
+* GtkTextview:
+ - Speed up gtk_text_buffer_insert_markup
+
+* GtkFrame:
+ - Set GTK_OVERFLOW_HIDDEN
+
+* GtkSpinButton:
+ - Fix spinning
+
+* GtkFontChooser:
+ - Populate the list incrementally
+
+* GtkButton: Simplify the button hierarchy; GtkRadioButton
+  is gone, GtkCheckButton and GtkToggleButton can be grouped
+
+* list widgets:
+ - Change apis to make models explicitly GtkSelectionModel
+ - Simplify constructors
+
+* CSS:
+ - Hexadecimal colors can now specify alpha
+ - Fix parsing of numbers in scientific notation
+
+* Themes:
+ - Add and document highlevel list styles
+ - Drop the style class defines. Just use string literals
+ - Round the corners of frames
+ - Make circular buttons square
+
+* GL renderer:
+ - Fix clipping with projective transforms
+
+* Documentation:
+ - Refresh the widget gallery
+ - Add images for new widgets to the gallery
+ - Fix many cross-references
+ - Make sure tutorial examples are buildable
+
+* Demos:
+ - Numerous crash- and bug fixes
+ - Improve about dialogs
+ - gtk4-demo: Modernize source highlighting
+ - gtk4-demo: Improve sidebar filtering
+ - gtk4-demo: Drop some outdated demos
+ - gtk4-demo: Polish a number of existing demos
+ - gtk4-demo: Add several new demos
+ - widget-factory: Show error states
+
+* Tools:
+ - Make gtk4-builder-tool rewrite GtkBox
+ - Make gtk4-builder-tool rewrite radio buttons
+ - Rewrite the profiling support, drop support
+   for D-Bus profiler activation, use SYSPROF_TRACE_FD
+
+* Printing:
+ - Fix build with cups < 2.3
+
+* win32:
+ - Default to the GL renderer when we can
+
+* Broadway:
+ - Fix handling of opaque colors
+ - Fix handling of debug nodes
+ - Prune clipped render nodes
+
+* Wayland:
+ - Support newer schemas for settings
+ - Fix DND hotspot handling
+ - Disconnect on display close
+
+* Translation updates:
+  Basque
+  Brazilian Portuguese
+  British English
+  Catalan
+  Chinese (China)
+  Croatian
+  Galician
+  German
+  Greek
+  Indonesian
+  Japanese
+  Kazakh
+  Korean
+  Lithuanian
+  Polish
+  Romanian
+  Slovenian
+  Spanish
+  Turkish
+  Ukrainian
+
+
+Overview of Changes in GTK 3.99.0
+=================================
+
+* Remove the old accessibility implementation and
+  add the foundations for a new one that is based
+  on ARIA. The relevant widget api is GtkAccessible,
+  the backend implementations will use GtkATContext.
+  Currently, there is just a nascent test backend.
+
+* Update the GTK headers to use char *, int, float and
+  double instead of the corresponding GLib types.
+
+* Add GtkEditableLabel, a label that can be edited
+
+* Add GtkBookmarkList, a list model for bookmarks
+
+* Add GtkStringList, a list model for strings
+
+* Add GtkBitset, and use it for representing selections
+
+* GtkTreeView:
+ - Make cell editing work again
+
+* GtkSpinButton:
+ - Make autosizing work again
+
+* Printing:
+ - Use GtkDropDown in the print dialog
+
+* GtkApplication
+ - Support opening files on OS X
+
+* GtkFileChooser:
+ - Fix libcloudproviders support
+ - Turn GtkFileFilter into a GtkFilter
+ - Simplify the api
+
+* GtkGridView, GtkListView:
+ - Improve scrolling behavior
+ - Autoscroll and autoexpand during DND
+
+* GtkScrolledWindow:
+ - Make autoscrolling work again
+
+* GtkFilterListModel:
+ - Add incremental filtering
+ - Add a boolean filter, GtkBoolFilter
+
+* GtkSortListModel:
+ - Use timsort
+ - Add various tweaks that massively speed up sorting
+ - Add incremental sorting
+
+* GtkWidget:
+ - Massively speed up action handling
+
+* GtkEntry:
+ - Make entry completion work again
+ - Drop action support from GtkEntryCompletion
+
+* Inspector:
+ - Improve list model support
+ - Add direct navigation between objects
+ - Show accessibility information
+
+* GDK:
+ - Compress scroll events
+ - Keep a scroll history
+ - Clean up GdkDevice api
+ - Drop the master/slave device split
+ - Move axes to GdkDeviceTool
+ - Change monitor workarea to be per-backend API
+ - Improve frame clock accuracy
+ - Add a new macOS backend
+ - Add an ANGLE-based GLES renderer for Windows
+
+* GSK:
+ - Use GL_ARB_framebuffer_object
+
+* gtk-demo:
+ - Add incremental refill to the color grid
+ - Improve performance of the color grid
+ - Add an incrementally filtering word list
+ - Improve the sidebar
+
+* Install print-editor as another demo
+
+* Translation updates
+ Basque
+ Catalan
+ Chinese
+ Japanese
+ Kazakh
+ Lithuanian
+ Polish
+ Romanian
+ Spanish
+ Turkish
+ Ukrainian
+
+
 Overview of Changes in GTK 3.98.5
 =================================

--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 GTK — The GTK toolkit
 =====================

-[![Build Status](https://gitlab.gnome.org/GNOME/gtk/badges/master/build.svg)](https://gitlab.gnome.org/GNOME/gtk/pipelines)
+[![Build status](https://gitlab.gnome.org/GNOME/gtk/badges/master/pipeline.svg)](https://gitlab.gnome.org/GNOME/gtk/-/commits/master)

 General information
 -------------------
@@ -56,7 +56,6 @@ building for:
  - [Pango](https://download.gnome.org/sources/pango)
  - [Epoxy](https://github.com/anholt/libepoxy)
  - [Graphene](https://github.com/ebassi/graphene)
-  - [ATK](https://download.gnome.org/sources/atk)
  - [Xkb-common](https://github.com/xkbcommon/libxkbcommon)

 If you are building the X11 backend, you will also need:
@@ -70,7 +69,6 @@ If you are building the X11 backend, you will also need:
    - xcursor
    - xdamage
    - xcomposite
-  - [atk-bridge-2.0](https://download.gnome.org/sources/at-spi2-atk)

 If you are building the Wayland backend, you will also need:

@@ -100,7 +98,7 @@ And, finally, you can install GTK using:
 $ sudo ninja install
 ```

-Complete information about installing GTK+ and related libraries
+Complete information about installing GTK and related libraries
 can be found in the file:

 ```
@@ -163,3 +161,7 @@ version 2.1 or, at your option, any later version, as published by the Free
 Software Foundation.

 Please, see the [`COPYING`](./COPYING) file for further information.
+
+GTK includes a small number of source files under the Apache license:
+- A fork of the roaring bitmaps implementation in [gtk/roaring](./gtk/roaring)
+- An adaptation of timsort from python in [gtk/timsort](./gtk/timsort)
--- a/build-aux/flatpak/org.gtk.Demo4.json
+++ b/build-aux/flatpak/org.gtk.Demo4.json
@@ -1,29 +1,38 @@
 {
-    "app-id": "org.gtk.Demo4",
-    "runtime": "org.gnome.Platform",
-    "runtime-version": "master",
-    "sdk": "org.gnome.Sdk",
-    "command": "gtk4-demo",
-    "tags": ["devel", "development", "nightly"],
-    "desktop-file-name-prefix": "(Development) ",
-    "finish-args": [
+    "app-id" : "org.gtk.Demo4",
+    "runtime" : "org.gnome.Platform",
+    "runtime-version" : "master",
+    "sdk" : "org.gnome.Sdk",
+    "command" : "gtk4-demo",
+    "tags" : [
+        "devel",
+        "development",
+        "nightly"
+    ],
+    "desktop-file-name-prefix" : "(Development) ",
+    "finish-args" : [
        "--device=dri",
        "--share=ipc",
        "--socket=fallback-x11",
        "--socket=wayland",
-        "--talk-name=org.gtk.vfs", "--talk-name=org.gtk.vfs.*"
+        "--talk-name=org.gtk.vfs",
+        "--talk-name=org.gtk.vfs.*"
    ],
-    "cleanup": [
+    "cleanup" : [
        "/include",
-        "/lib/pkgconfig", "/share/pkgconfig",
+        "/lib/pkgconfig",
+        "/share/pkgconfig",
        "/share/aclocal",
-        "/man", "/share/man", "/share/gtk-doc",
-        "*.la", ".a",
+        "/man",
+        "/share/man",
+        "/share/gtk-doc",
+        "*.la",
+        ".a",
        "/lib/girepository-1.0",
        "/share/gir-1.0",
        "/share/doc"
    ],
-    "modules": [
+    "modules" : [
        {
            "name" : "wayland",
            "buildsystem" : "autotools",
@@ -39,18 +48,18 @@
            ]
        },
        {
-            "name": "graphene",
-            "buildsystem": "meson",
-            "builddir": true,
-            "config-opts": [
+            "name" : "graphene",
+            "buildsystem" : "meson",
+            "builddir" : true,
+            "config-opts" : [
                "--libdir=/app/lib",
                "-Dtests=false",
                "-Dbenchmarks=false"
            ],
-            "sources": [
+            "sources" : [
                {
-                    "type": "git",
-                    "url": "https://github.com/ebassi/graphene.git"
+                    "type" : "git",
+                    "url" : "https://github.com/ebassi/graphene.git"
                }
            ]
        },
@@ -58,7 +67,7 @@
            "name" : "libsass",
            "buildsystem" : "meson",
            "builddir" : true,
-            "config-opts": [
+            "config-opts" : [
                "--libdir=/app/lib"
            ],
            "sources" : [
@@ -73,7 +82,7 @@
            "name" : "sassc",
            "buildsystem" : "meson",
            "builddir" : true,
-            "config-opts": [
+            "config-opts" : [
                "--libdir=/app/lib"
            ],
            "sources" : [
@@ -85,18 +94,25 @@
            ]
        },
        {
-            "name": "gtk",
-            "buildsystem": "meson",
-            "builddir": true,
-            "config-opts": [
-                "--libdir=/app/lib"
+            "name" : "gtk",
+            "buildsystem" : "meson",
+            "builddir" : true,
+            "config-opts" : [
+                "--libdir=/app/lib",
+                "-Denable_vulkan=no",
+                "-Dbuildtype=debugoptimized"
            ],
-            "sources": [
+            "sources" : [
                {
-                    "type": "git",
-                    "url": "https://gitlab.gnome.org/GNOME/gtk.git"
+                    "type" : "git",
+                    "url" : "https://gitlab.gnome.org/GNOME/gtk.git"
                }
            ]
        }
-    ]
+    ],
+    "build-options" : {
+        "env" : {
+            "GSK_RENDERER" : "opengl"
+        }
+    }
 }
--- a/build-aux/flatpak/org.gtk.IconBrowser4.json
+++ b/build-aux/flatpak/org.gtk.IconBrowser4.json
@@ -1,29 +1,38 @@
 {
-    "app-id": "org.gtk.IconBrowser4",
-    "runtime": "org.gnome.Platform",
-    "runtime-version": "master",
-    "sdk": "org.gnome.Sdk",
-    "command": "gtk4-icon-browser",
-    "tags": ["devel", "development", "nightly"],
-    "desktop-file-name-prefix": "(Development) ",
-    "finish-args": [
+    "app-id" : "org.gtk.IconBrowser4",
+    "runtime" : "org.gnome.Platform",
+    "runtime-version" : "master",
+    "sdk" : "org.gnome.Sdk",
+    "command" : "gtk4-icon-browser",
+    "tags" : [
+        "devel",
+        "development",
+        "nightly"
+    ],
+    "desktop-file-name-prefix" : "(Development) ",
+    "finish-args" : [
        "--device=dri",
        "--share=ipc",
        "--socket=fallback-x11",
        "--socket=wayland",
-        "--talk-name=org.gtk.vfs", "--talk-name=org.gtk.vfs.*"
+        "--talk-name=org.gtk.vfs",
+        "--talk-name=org.gtk.vfs.*"
    ],
-    "cleanup": [
+    "cleanup" : [
        "/include",
-        "/lib/pkgconfig", "/share/pkgconfig",
+        "/lib/pkgconfig",
+        "/share/pkgconfig",
        "/share/aclocal",
-        "/man", "/share/man", "/share/gtk-doc",
-        "*.la", ".a",
+        "/man",
+        "/share/man",
+        "/share/gtk-doc",
+        "*.la",
+        ".a",
        "/lib/girepository-1.0",
        "/share/gir-1.0",
        "/share/doc"
    ],
-    "modules": [
+    "modules" : [
        {
            "name" : "wayland",
            "buildsystem" : "autotools",
@@ -39,18 +48,18 @@
            ]
        },
        {
-            "name": "graphene",
-            "buildsystem": "meson",
-            "builddir": true,
-            "config-opts": [
+            "name" : "graphene",
+            "buildsystem" : "meson",
+            "builddir" : true,
+            "config-opts" : [
                "--libdir=/app/lib",
                "-Dtests=false",
                "-Dbenchmarks=false"
            ],
-            "sources": [
+            "sources" : [
                {
-                    "type": "git",
-                    "url": "https://github.com/ebassi/graphene.git"
+                    "type" : "git",
+                    "url" : "https://github.com/ebassi/graphene.git"
                }
            ]
        },
@@ -58,7 +67,7 @@
            "name" : "libsass",
            "buildsystem" : "meson",
            "builddir" : true,
-            "config-opts": [
+            "config-opts" : [
                "--libdir=/app/lib"
            ],
            "sources" : [
@@ -73,7 +82,7 @@
            "name" : "sassc",
            "buildsystem" : "meson",
            "builddir" : true,
-            "config-opts": [
+            "config-opts" : [
                "--libdir=/app/lib"
            ],
            "sources" : [
@@ -85,18 +94,24 @@
            ]
        },
        {
-            "name": "gtk",
-            "buildsystem": "meson",
-            "builddir": true,
-            "config-opts": [
-                "--libdir=/app/lib"
+            "name" : "gtk",
+            "buildsystem" : "meson",
+            "builddir" : true,
+            "config-opts" : [
+                "--libdir=/app/lib",
+                "-Denable_vulkan=no",
+                "-Dbuildtype=debugoptimized"
            ],
-            "sources": [
+            "sources" : [
                {
-                    "type": "git",
-                    "url": "https://gitlab.gnome.org/GNOME/gtk.git"
+                    "type" : "git",
+                    "url" : "https://gitlab.gnome.org/GNOME/gtk.git"
                }
            ]
        }
-    ]
+    ],
+    "build-options" : {
+        "env" : {
+        }
+    }
 }
--- a/build-aux/flatpak/org.gtk.WidgetFactory4.json
+++ b/build-aux/flatpak/org.gtk.WidgetFactory4.json
@@ -1,29 +1,38 @@
 {
-    "app-id": "org.gtk.WidgetFactory4",
-    "runtime": "org.gnome.Platform",
-    "runtime-version": "master",
-    "sdk": "org.gnome.Sdk",
-    "command": "gtk4-widget-factory",
-    "tags": ["devel", "development", "nightly"],
-    "desktop-file-name-prefix": "(Development) ",
-    "finish-args": [
+    "app-id" : "org.gtk.WidgetFactory4",
+    "runtime" : "org.gnome.Platform",
+    "runtime-version" : "master",
+    "sdk" : "org.gnome.Sdk",
+    "command" : "gtk4-widget-factory",
+    "tags" : [
+        "devel",
+        "development",
+        "nightly"
+    ],
+    "desktop-file-name-prefix" : "(Development) ",
+    "finish-args" : [
        "--device=dri",
        "--share=ipc",
        "--socket=fallback-x11",
        "--socket=wayland",
-        "--talk-name=org.gtk.vfs", "--talk-name=org.gtk.vfs.*"
+        "--talk-name=org.gtk.vfs",
+        "--talk-name=org.gtk.vfs.*"
    ],
-    "cleanup": [
+    "cleanup" : [
        "/include",
-        "/lib/pkgconfig", "/share/pkgconfig",
+        "/lib/pkgconfig",
+        "/share/pkgconfig",
        "/share/aclocal",
-        "/man", "/share/man", "/share/gtk-doc",
-        "*.la", ".a",
+        "/man",
+        "/share/man",
+        "/share/gtk-doc",
+        "*.la",
+        ".a",
        "/lib/girepository-1.0",
        "/share/gir-1.0",
        "/share/doc"
    ],
-    "modules": [
+    "modules" : [
        {
            "name" : "wayland",
            "buildsystem" : "autotools",
@@ -39,18 +48,18 @@
            ]
        },
        {
-            "name": "graphene",
-            "buildsystem": "meson",
-            "builddir": true,
-            "config-opts": [
+            "name" : "graphene",
+            "buildsystem" : "meson",
+            "builddir" : true,
+            "config-opts" : [
                "--libdir=/app/lib",
                "-Dtests=false",
                "-Dbenchmarks=false"
            ],
-            "sources": [
+            "sources" : [
                {
-                    "type": "git",
-                    "url": "https://github.com/ebassi/graphene.git"
+                    "type" : "git",
+                    "url" : "https://github.com/ebassi/graphene.git"
                }
            ]
        },
@@ -58,7 +67,7 @@
            "name" : "libsass",
            "buildsystem" : "meson",
            "builddir" : true,
-            "config-opts": [
+            "config-opts" : [
                "--libdir=/app/lib"
            ],
            "sources" : [
@@ -73,7 +82,7 @@
            "name" : "sassc",
            "buildsystem" : "meson",
            "builddir" : true,
-            "config-opts": [
+            "config-opts" : [
                "--libdir=/app/lib"
            ],
            "sources" : [
@@ -85,18 +94,28 @@
            ]
        },
        {
-            "name": "gtk",
-            "buildsystem": "meson",
-            "builddir": true,
-            "config-opts": [
-                "--libdir=/app/lib"
+            "name" : "gtk",
+            "buildsystem" : "meson",
+            "builddir" : true,
+            "config-opts" : [
+                "--libdir=/app/lib",
+                "-Denable_vulkan=no",
+                "-Dbuildtype=debugoptimized"
            ],
-            "sources": [
+            "sources" : [
                {
-                    "type": "git",
-                    "url": "https://gitlab.gnome.org/GNOME/gtk.git"
+                    "type" : "git",
+                    "url" : "https://gitlab.gnome.org/GNOME/gtk.git"
                }
            ]
        }
-    ]
+    ],
+    "build-options" : {
+        "env" : {
+            "DBUS_SESSION_BUS_ADDRESS" : "''",
+            "GSK_RENDERER" : "opengl",
+            "GDK_DEBUG" : "vulkan-disable",
+            "G_ENABLE_DEBUG" : "true"
+        }
+    }
 }
--- a/build-aux/meson/post-install.py
+++ b/build-aux/meson/post-install.py
@@ -15,7 +15,13 @@ if 'DESTDIR' not in os.environ:
    gtk_immodule_dir = os.path.join(gtk_moduledir, 'immodules')

    print('Compiling GSettings schemas...')
-    subprocess.call(['glib-compile-schemas',
+    glib_compile_schemas = subprocess.check_output(['pkg-config',
+                                                   '--variable=glib_compile_schemas',
+                                                   'gio-2.0']).strip()
+    if not os.path.exists(glib_compile_schemas):
+        # pkg-config variables only available since GLib 2.62.0.
+        glib_compile_schemas = 'glib-compile-schemas'
+    subprocess.call([glib_compile_schemas,
                    os.path.join(gtk_datadir, 'glib-2.0', 'schemas')])

    print('Updating icon cache...')
@@ -24,8 +30,14 @@ if 'DESTDIR' not in os.environ:

    print('Updating module cache for print backends...')
    os.makedirs(gtk_printmodule_dir, exist_ok=True)
-    subprocess.call(['gio-querymodules', gtk_printmodule_dir])
+    gio_querymodules = subprocess.check_output(['pkg-config',
+                                                '--variable=gio_querymodules',
+                                                'gio-2.0']).strip()
+    if not os.path.exists(gio_querymodules):
+        # pkg-config variables only available since GLib 2.62.0.
+        gio_querymodules = 'gio-querymodules'
+    subprocess.call([gio_querymodules, gtk_printmodule_dir])

    print('Updating module cache for input methods...')
    os.makedirs(gtk_immodule_dir, exist_ok=True)
-    subprocess.call(['gio-querymodules', gtk_immodule_dir])
+    subprocess.call([gio_querymodules, gtk_immodule_dir])
--- a/config.h.meson
+++ b/config.h.meson
@@ -103,7 +103,7 @@
 #mesondefine HAVE_SYS_PARAM_H

 /* Have the sysprof-capture library */
-#mesondefine HAVE_SYSPROF_CAPTURE
+#mesondefine HAVE_SYSPROF

 /* Define to 1 if you have the <sys/stat.h> header file. */
 #mesondefine HAVE_SYS_STAT_H
--- a/demos/constraint-editor/constraint-editor-application.c
+++ b/demos/constraint-editor/constraint-editor-application.c
@@ -81,11 +81,11 @@ constraint_editor_application_activate (GApplication *app)
 static void
 constraint_editor_application_open (GApplication  *app,
                                    GFile        **files,
-                                    gint           n_files,
-                                    const gchar   *hint)
+                                    int            n_files,
+                                    const char    *hint)
 {
  ConstraintEditorWindow *win;
-  gint i;
+  int i;

  for (i = 0; i < n_files; i++)
    {
--- a/demos/constraint-editor/constraint-editor-window.c
+++ b/demos/constraint-editor/constraint-editor-window.c
@@ -193,7 +193,7 @@ constraint_editor_window_load (ConstraintEditorWindow *self,

 static void
 open_response_cb (GtkNativeDialog        *dialog,
-                  gint                    response,
+                  int                     response,
                  ConstraintEditorWindow *self)
 {
  gtk_native_dialog_hide (dialog);
@@ -285,7 +285,7 @@ serialize_model (GListModel *list)

 static void
 save_response_cb (GtkNativeDialog        *dialog,
-                  gint                    response,
+                  int                     response,
                  ConstraintEditorWindow *self)
 {
  gtk_native_dialog_hide (dialog);
--- a/demos/constraint-editor/constraint-editor-window.ui
+++ b/demos/constraint-editor/constraint-editor-window.ui
@@ -9,7 +9,6 @@
    <property name="default-height">768</property>
    <child type="titlebar">
      <object class="GtkHeaderBar" id="header">
-        <property name="show-title-buttons">1</property>
        <child type="start">
          <object class="GtkButton">
            <property name="icon-name">document-open-symbolic</property>
--- a/demos/constraint-editor/constraint-editor.ui
+++ b/demos/constraint-editor/constraint-editor.ui
@@ -13,8 +13,8 @@
          <object class="GtkLabel">
            <property name="label">Target</property>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">1</property>
+              <property name="column">0</property>
+              <property name="row">1</property>
            </layout>
          </object>
        </child>
@@ -23,8 +23,8 @@
            <signal name="changed" handler="update_preview" swapped="yes"/>
            <signal name="changed" handler="update_button" swapped="yes"/>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">1</property>
+              <property name="column">1</property>
+              <property name="row">1</property>
            </layout>
          </object>
        </child>
@@ -32,8 +32,8 @@
          <object class="GtkComboBoxText" id="target_attr">
            <signal name="changed" handler="update_preview" swapped="yes"/>
            <layout>
-              <property name="left-attach">2</property>
-              <property name="top-attach">1</property>
+              <property name="column">2</property>
+              <property name="row">1</property>
            </layout>
          </object>
        </child>
@@ -41,8 +41,8 @@
          <object class="GtkLabel">
            <property name="label">Relation</property>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">2</property>
+              <property name="column">0</property>
+              <property name="row">2</property>
            </layout>
          </object>
        </child>
@@ -50,8 +50,8 @@
          <object class="GtkComboBoxText" id="relation">
            <signal name="changed" handler="update_preview" swapped="yes"/>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">2</property>
+              <property name="column">1</property>
+              <property name="row">2</property>
            </layout>
          </object>
        </child>
@@ -59,8 +59,8 @@
          <object class="GtkLabel">
            <property name="label">Source</property>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">3</property>
+              <property name="column">0</property>
+              <property name="row">3</property>
            </layout>
          </object>
        </child>
@@ -69,8 +69,8 @@
            <signal name="changed" handler="update_preview" swapped="yes"/>
            <signal name="changed" handler="update_button" swapped="yes"/>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">3</property>
+              <property name="column">1</property>
+              <property name="row">3</property>
            </layout>
          </object>
        </child>
@@ -79,8 +79,8 @@
            <signal name="changed" handler="update_preview" swapped="yes"/>
            <signal name="changed" handler="source_attr_changed" swapped="yes"/>
            <layout>
-              <property name="left-attach">2</property>
-              <property name="top-attach">3</property>
+              <property name="column">2</property>
+              <property name="row">3</property>
            </layout>
          </object>
        </child>
@@ -88,8 +88,8 @@
          <object class="GtkLabel">
            <property name="label">Multiplier</property>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">4</property>
+              <property name="column">0</property>
+              <property name="row">4</property>
            </layout>
          </object>
        </child>
@@ -97,8 +97,8 @@
          <object class="GtkEntry" id="multiplier">
            <signal name="changed" handler="update_preview" swapped="yes"/>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">4</property>
+              <property name="column">1</property>
+              <property name="row">4</property>
            </layout>
          </object>
        </child>
@@ -106,8 +106,8 @@
          <object class="GtkLabel">
            <property name="label">Constant</property>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">5</property>
+              <property name="column">0</property>
+              <property name="row">5</property>
            </layout>
          </object>
        </child>
@@ -115,8 +115,8 @@
          <object class="GtkEntry" id="constant">
            <signal name="changed" handler="update_preview" swapped="yes"/>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">5</property>
+              <property name="column">1</property>
+              <property name="row">5</property>
            </layout>
          </object>
        </child>
@@ -124,16 +124,16 @@
          <object class="GtkLabel">
            <property name="label">Strength</property>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">6</property>
+              <property name="column">0</property>
+              <property name="row">6</property>
            </layout>
          </object>
        </child>
        <child>
          <object class="GtkComboBoxText" id="strength">
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">6</property>
+              <property name="column">1</property>
+              <property name="row">6</property>
            </layout>
          </object>
        </child>
@@ -141,8 +141,8 @@
          <object class="GtkLabel" id="preview">
            <property name="xalign">0</property>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">7</property>
+              <property name="column">1</property>
+              <property name="row">7</property>
              <property name="column-span">2</property>
            </layout>
            <attributes>
@@ -155,8 +155,8 @@
            <property name="label">Create</property>
            <signal name="clicked" handler="create_constraint"/>
            <layout>
-              <property name="left-attach">2</property>
-              <property name="top-attach">8</property>
+              <property name="column">2</property>
+              <property name="row">8</property>
            </layout>
          </object>
        </child>
--- a/demos/constraint-editor/constraint-view.c
+++ b/demos/constraint-editor/constraint-view.c
@@ -174,28 +174,25 @@ constraint_view_init (ConstraintView *self)
  manager = gtk_constraint_layout_new ();
  gtk_widget_set_layout_manager (GTK_WIDGET (self), manager);

-  all_children = gtk_widget_observe_children (GTK_WIDGET (self));
-  all_constraints = gtk_constraint_layout_observe_constraints (GTK_CONSTRAINT_LAYOUT (manager));
  guides = gtk_constraint_layout_observe_guides (GTK_CONSTRAINT_LAYOUT (manager));
+
+  all_constraints = gtk_constraint_layout_observe_constraints (GTK_CONSTRAINT_LAYOUT (manager));
  filter = gtk_custom_filter_new (omit_internal, NULL, NULL);
  constraints = (GListModel *)gtk_filter_list_model_new (all_constraints, filter);
-  g_object_unref (filter);
+
+  all_children = gtk_widget_observe_children (GTK_WIDGET (self));
  filter = gtk_custom_filter_new (omit_internal, NULL, NULL);
  children = (GListModel *)gtk_filter_list_model_new (all_children, filter);
-  g_object_unref (filter);

  list = g_list_store_new (G_TYPE_LIST_MODEL);
  g_list_store_append (list, children);
  g_list_store_append (list, guides);
  g_list_store_append (list, constraints);
-  self->model = G_LIST_MODEL (gtk_flatten_list_model_new (G_TYPE_OBJECT, G_LIST_MODEL (list)));
  g_object_unref (children);
  g_object_unref (guides);
  g_object_unref (constraints);
-  g_object_unref (all_children);
-  g_object_unref (all_constraints);
-  g_object_unref (list);

+  self->model = G_LIST_MODEL (gtk_flatten_list_model_new (G_LIST_MODEL (list)));

  controller = (GtkEventController *)gtk_gesture_drag_new ();
  g_signal_connect (controller, "drag-begin", G_CALLBACK (drag_begin), self);
--- a/demos/constraint-editor/guide-editor.ui
+++ b/demos/constraint-editor/guide-editor.ui
@@ -55,8 +55,8 @@
          <object class="GtkLabel">
            <property name="label">Name</property>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">0</property>
+              <property name="column">0</property>
+              <property name="row">0</property>
            </layout>
          </object>
        </child>
@@ -64,8 +64,8 @@
          <object class="GtkEntry" id="name">
            <property name="max-width-chars">20</property>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">0</property>
+              <property name="column">1</property>
+              <property name="row">0</property>
              <property name="column-span">2</property>
            </layout>
          </object>
@@ -74,8 +74,8 @@
          <object class="GtkLabel">
            <property name="label">Min Size</property>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">1</property>
+              <property name="column">0</property>
+              <property name="row">1</property>
            </layout>
          </object>
        </child>
@@ -84,8 +84,8 @@
            <property name="adjustment">min_width_adj</property>
            <property name="max-width-chars">5</property>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">1</property>
+              <property name="column">1</property>
+              <property name="row">1</property>
            </layout>
          </object>
        </child>
@@ -94,8 +94,8 @@
            <property name="adjustment">min_height_adj</property>
            <property name="max-width-chars">5</property>
            <layout>
-              <property name="left-attach">2</property>
-              <property name="top-attach">1</property>
+              <property name="column">2</property>
+              <property name="row">1</property>
            </layout>
          </object>
        </child>
@@ -103,8 +103,8 @@
          <object class="GtkLabel">
            <property name="label">Nat Size</property>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">2</property>
+              <property name="column">0</property>
+              <property name="row">2</property>
            </layout>
          </object>
        </child>
@@ -113,8 +113,8 @@
            <property name="adjustment">nat_width_adj</property>
            <property name="max-width-chars">5</property>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">2</property>
+              <property name="column">1</property>
+              <property name="row">2</property>
            </layout>
          </object>
        </child>
@@ -123,8 +123,8 @@
            <property name="adjustment">nat_height_adj</property>
            <property name="max-width-chars">5</property>
            <layout>
-              <property name="left-attach">2</property>
-              <property name="top-attach">2</property>
+              <property name="column">2</property>
+              <property name="row">2</property>
            </layout>
          </object>
        </child>
@@ -132,8 +132,8 @@
          <object class="GtkLabel">
            <property name="label">Max Size</property>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">3</property>
+              <property name="column">0</property>
+              <property name="row">3</property>
            </layout>
          </object>
        </child>
@@ -142,8 +142,8 @@
            <property name="adjustment">max_width_adj</property>
            <property name="max-width-chars">5</property>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">3</property>
+              <property name="column">1</property>
+              <property name="row">3</property>
            </layout>
          </object>
        </child>
@@ -152,8 +152,8 @@
            <property name="adjustment">max_height_adj</property>
            <property name="max-width-chars">5</property>
            <layout>
-              <property name="left-attach">2</property>
-              <property name="top-attach">3</property>
+              <property name="column">2</property>
+              <property name="row">3</property>
            </layout>
          </object>
        </child>
@@ -161,16 +161,16 @@
          <object class="GtkLabel">
            <property name="label">Strength</property>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">4</property>
+              <property name="column">0</property>
+              <property name="row">4</property>
            </layout>
          </object>
        </child>
        <child>
          <object class="GtkComboBoxText" id="strength">
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">4</property>
+              <property name="column">1</property>
+              <property name="row">4</property>
              <property name="column-span">2</property>
            </layout>
          </object>
@@ -180,8 +180,8 @@
            <property name="label">Create</property>
            <signal name="clicked" handler="create_guide"/>
            <layout>
-              <property name="left-attach">2</property>
-              <property name="top-attach">5</property>
+              <property name="column">2</property>
+              <property name="row">5</property>
            </layout>
          </object>
        </child>
--- a/demos/gtk-demo/application.c
+++ b/demos/gtk-demo/application.c
@@ -1,4 +1,3 @@
-
 #include "config.h"

 #include <gtk/gtk.h>
@@ -34,7 +33,7 @@ static void create_window (GApplication *app, const char *contents);
 static void
 show_action_dialog (GSimpleAction *action)
 {
-  const gchar *name;
+  const char *name;
  GtkWidget *dialog;

  name = g_action_get_name (G_ACTION (action));
@@ -58,9 +57,9 @@ show_action_infobar (GSimpleAction *action,
                     gpointer       data)
 {
  DemoApplicationWindow *window = data;
-  gchar *text;
-  const gchar *name;
-  const gchar *value;
+  char *text;
+  const char *name;
+  const char *value;

  name = g_action_get_name (G_ACTION (action));
  value = g_variant_get_string (parameter, NULL);
@@ -92,7 +91,7 @@ activate_new (GSimpleAction *action,

 static void
 open_response_cb (GtkNativeDialog *dialog,
-                  gint             response_id,
+                  int              response_id,
                  gpointer         user_data)
 {
  GtkFileChooserNative *native = user_data;
@@ -185,7 +184,7 @@ activate_about (GSimpleAction *action,
 {
  GtkWidget *window = user_data;

-  const gchar *authors[] = {
+  const char *authors[] = {
    "Peter Mattis",
    "Spencer Kimball",
    "Josh MacDonald",
@@ -193,7 +192,7 @@ activate_about (GSimpleAction *action,
    NULL
  };

-  const gchar *documentors[] = {
+  const char *documentors[] = {
    "Owen Taylor",
    "Tony Gale",
    "Matthias Clasen <mclasen@redhat.com>",
@@ -244,9 +243,9 @@ static void
 update_statusbar (GtkTextBuffer         *buffer,
                  DemoApplicationWindow *window)
 {
-  gchar *msg;
-  gint row, col;
-  gint count;
+  char *msg;
+  int row, col;
+  int count;
  GtkTextIter iter;

  /* clear any previous message, underflow is allowed */
--- a/demos/gtk-demo/application.ui
+++ b/demos/gtk-demo/application.ui
@@ -31,8 +31,8 @@
              </object>
            </child>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">0</property>
+              <property name="column">0</property>
+              <property name="row">0</property>
            </layout>
          </object>
        </child>
@@ -54,8 +54,8 @@
              </object>
            </child>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">1</property>
+              <property name="column">0</property>
+              <property name="row">1</property>
            </layout>
          </object>
        </child>
@@ -70,8 +70,8 @@
              </object>
            </child>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">2</property>
+              <property name="column">0</property>
+              <property name="row">2</property>
            </layout>
          </object>
        </child>
@@ -79,8 +79,8 @@
          <object class="GtkStatusbar" id="status">
            <property name="hexpand">1</property>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">3</property>
+              <property name="column">0</property>
+              <property name="row">3</property>
            </layout>
          </object>
        </child>
--- a/demos/gtk-demo/application_demo.c
+++ b/demos/gtk-demo/application_demo.c
@@ -16,8 +16,8 @@ static GtkWidget *placeholder;

 static void
 on_name_appeared (GDBusConnection *connection,
-                  const gchar     *name,
-                  const gchar     *name_owner,
+                  const char      *name,
+                  const char      *name_owner,
                  gpointer         user_data)
 {
  name_seen = TRUE;
@@ -25,7 +25,7 @@ on_name_appeared (GDBusConnection *connection,

 static void
 on_name_vanished (GDBusConnection *connection,
-                  const gchar     *name,
+                  const char      *name,
                  gpointer         user_data)
 {
  if (!name_seen)
@@ -55,7 +55,7 @@ do_application_demo (GtkWidget *toplevel)

  if (placeholder == NULL)
    {
-      const gchar *command;
+      const char *command;
      GError *error = NULL;

      if (g_file_test ("./gtk4-demo-application" APP_EXTENSION, G_FILE_TEST_IS_EXECUTABLE))
--- a/demos/gtk-demo/assistant.c
+++ b/demos/gtk-demo/assistant.c
@@ -12,7 +12,7 @@ static GtkWidget *progress_bar = NULL;
 static gboolean
 apply_changes_gradually (gpointer data)
 {
-  gdouble fraction;
+  double fraction;

  /* Work, work, work... */
  fraction = gtk_progress_bar_get_fraction (GTK_PROGRESS_BAR (progress_bar));
@@ -47,8 +47,8 @@ on_assistant_close_cancel (GtkWidget *widget, gpointer data)
 static void
 on_assistant_prepare (GtkWidget *widget, GtkWidget *page, gpointer data)
 {
-  gint current_page, n_pages;
-  gchar *title;
+  int current_page, n_pages;
+  char *title;

  current_page = gtk_assistant_get_current_page (GTK_ASSISTANT (widget));
  n_pages = gtk_assistant_get_n_pages (GTK_ASSISTANT (widget));
@@ -70,8 +70,8 @@ on_entry_changed (GtkWidget *widget, gpointer data)
 {
  GtkAssistant *assistant = GTK_ASSISTANT (data);
  GtkWidget *current_page;
-  gint page_number;
-  const gchar *text;
+  int page_number;
+  const char *text;

  page_number = gtk_assistant_get_current_page (assistant);
  current_page = gtk_assistant_get_nth_page (assistant, page_number);
--- a/demos/gtk-demo/blendmodes.ui
+++ b/demos/gtk-demo/blendmodes.ui
@@ -8,6 +8,10 @@
    <property name="default-height">300</property>
    <child>
      <object class="GtkGrid">
+        <property name="margin-start">12</property>
+        <property name="margin-end">12</property>
+        <property name="margin-top">12</property>
+        <property name="margin-bottom">12</property>
        <property name="row-spacing">12</property>
        <property name="column-spacing">12</property>
        <child>
@@ -18,8 +22,8 @@
              <class name="dim-label"/>
            </style>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">0</property>
+              <property name="column">0</property>
+              <property name="row">0</property>
            </layout>
          </object>
        </child>
@@ -29,8 +33,8 @@
            <property name="has-frame">1</property>
            <property name="min-content-width">150</property>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">1</property>
+              <property name="column">0</property>
+              <property name="row">1</property>
            </layout>
          </object>
        </child>
@@ -40,8 +44,8 @@
            <property name="hexpand">1</property>
            <property name="stack">stack</property>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">0</property>
+              <property name="column">1</property>
+              <property name="row">0</property>
            </layout>
          </object>
        </child>
@@ -67,8 +71,8 @@
                      <object class="GtkLabel">
                        <property name="label" translatable="yes">Duck</property>
                        <layout>
-                          <property name="left-attach">0</property>
-                          <property name="top-attach">0</property>
+                          <property name="column">0</property>
+                          <property name="row">0</property>
                        </layout>
                      </object>
                    </child>
@@ -76,8 +80,8 @@
                      <object class="GtkLabel">
                        <property name="label" translatable="yes">Background</property>
                        <layout>
-                          <property name="left-attach">1</property>
-                          <property name="top-attach">0</property>
+                          <property name="column">1</property>
+                          <property name="row">0</property>
                        </layout>
                      </object>
                    </child>
@@ -87,8 +91,8 @@
                          <class name="duck"/>
                        </style>
                        <layout>
-                          <property name="left-attach">0</property>
-                          <property name="top-attach">1</property>
+                          <property name="column">0</property>
+                          <property name="row">1</property>
                        </layout>
                      </object>
                    </child>
@@ -98,8 +102,8 @@
                          <class name="gradient"/>
                        </style>
                        <layout>
-                          <property name="left-attach">1</property>
-                          <property name="top-attach">1</property>
+                          <property name="column">1</property>
+                          <property name="row">1</property>
                        </layout>
                      </object>
                    </child>
@@ -108,8 +112,8 @@
                        <property name="label" translatable="yes">
 Blended picture</property>
                        <layout>
-                          <property name="left-attach">0</property>
-                          <property name="top-attach">2</property>
+                          <property name="column">0</property>
+                          <property name="row">2</property>
                          <property name="column-span">2</property>
                        </layout>
                      </object>
@@ -121,8 +125,8 @@ Blended picture</property>
                          <class name="blend0"/>
                        </style>
                        <layout>
-                          <property name="left-attach">0</property>
-                          <property name="top-attach">3</property>
+                          <property name="column">0</property>
+                          <property name="row">3</property>
                          <property name="column-span">2</property>
                        </layout>
                      </object>
@@ -146,8 +150,8 @@ Blended picture</property>
                      <object class="GtkLabel">
                        <property name="label" translatable="yes">Red</property>
                        <layout>
-                          <property name="left-attach">0</property>
-                          <property name="top-attach">0</property>
+                          <property name="column">0</property>
+                          <property name="row">0</property>
                        </layout>
                      </object>
                    </child>
@@ -155,8 +159,8 @@ Blended picture</property>
                      <object class="GtkLabel">
                        <property name="label" translatable="yes">Blue</property>
                        <layout>
-                          <property name="left-attach">1</property>
-                          <property name="top-attach">0</property>
+                          <property name="column">1</property>
+                          <property name="row">0</property>
                        </layout>
                      </object>
                    </child>
@@ -166,8 +170,8 @@ Blended picture</property>
                          <class name="red"/>
                        </style>
                        <layout>
-                          <property name="left-attach">0</property>
-                          <property name="top-attach">1</property>
+                          <property name="column">0</property>
+                          <property name="row">1</property>
                        </layout>
                      </object>
                    </child>
@@ -177,8 +181,8 @@ Blended picture</property>
                          <class name="blue"/>
                        </style>
                        <layout>
-                          <property name="left-attach">1</property>
-                          <property name="top-attach">1</property>
+                          <property name="column">1</property>
+                          <property name="row">1</property>
                        </layout>
                      </object>
                    </child>
@@ -187,8 +191,8 @@ Blended picture</property>
                        <property name="label" translatable="yes">
 Blended picture</property>
                        <layout>
-                          <property name="left-attach">0</property>
-                          <property name="top-attach">2</property>
+                          <property name="column">0</property>
+                          <property name="row">2</property>
                          <property name="column-span">2</property>
                        </layout>
                      </object>
@@ -200,8 +204,8 @@ Blended picture</property>
                          <class name="blend1"/>
                        </style>
                        <layout>
-                          <property name="left-attach">0</property>
-                          <property name="top-attach">3</property>
+                          <property name="column">0</property>
+                          <property name="row">3</property>
                          <property name="column-span">2</property>
                        </layout>
                      </object>
@@ -228,8 +232,8 @@ Blended picture</property>
                          <class name="cyan"/>
                        </style>
                        <layout>
-                          <property name="left-attach">0</property>
-                          <property name="top-attach">1</property>
+                          <property name="column">0</property>
+                          <property name="row">1</property>
                        </layout>
                      </object>
                    </child>
@@ -239,8 +243,8 @@ Blended picture</property>
                          <class name="magenta"/>
                        </style>
                        <layout>
-                          <property name="left-attach">1</property>
-                          <property name="top-attach">1</property>
+                          <property name="column">1</property>
+                          <property name="row">1</property>
                        </layout>
                      </object>
                    </child>
@@ -250,8 +254,8 @@ Blended picture</property>
                          <class name="yellow"/>
                        </style>
                        <layout>
-                          <property name="left-attach">0</property>
-                          <property name="top-attach">3</property>
+                          <property name="column">0</property>
+                          <property name="row">3</property>
                        </layout>
                      </object>
                    </child>
@@ -262,8 +266,8 @@ Blended picture</property>
                          <class name="blend2"/>
                        </style>
                        <layout>
-                          <property name="left-attach">1</property>
-                          <property name="top-attach">3</property>
+                          <property name="column">1</property>
+                          <property name="row">3</property>
                        </layout>
                      </object>
                    </child>
@@ -275,8 +279,8 @@ Blended picture</property>
                          <class name="dim-label"/>
                        </style>
                        <layout>
-                          <property name="left-attach">0</property>
-                          <property name="top-attach">0</property>
+                          <property name="column">0</property>
+                          <property name="row">0</property>
                        </layout>
                      </object>
                    </child>
@@ -288,8 +292,8 @@ Blended picture</property>
                          <class name="dim-label"/>
                        </style>
                        <layout>
-                          <property name="left-attach">1</property>
-                          <property name="top-attach">0</property>
+                          <property name="column">1</property>
+                          <property name="row">0</property>
                        </layout>
                      </object>
                    </child>
@@ -301,8 +305,8 @@ Blended picture</property>
                          <class name="dim-label"/>
                        </style>
                        <layout>
-                          <property name="left-attach">0</property>
-                          <property name="top-attach">2</property>
+                          <property name="column">0</property>
+                          <property name="row">2</property>
                        </layout>
                      </object>
                    </child>
@@ -314,8 +318,8 @@ Blended picture</property>
                          <attribute name="weight" value="bold"></attribute>
                        </attributes>
                        <layout>
-                          <property name="left-attach">1</property>
-                          <property name="top-attach">2</property>
+                          <property name="column">1</property>
+                          <property name="row">2</property>
                        </layout>
                      </object>
                    </child>
@@ -324,8 +328,8 @@ Blended picture</property>
              </object>
            </child>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">1</property>
+              <property name="column">1</property>
+              <property name="row">1</property>
            </layout>
          </object>
        </child>
--- a/demos/gtk-demo/bluroverlay.c
+++ b/demos/gtk-demo/bluroverlay.c
@@ -132,10 +132,10 @@ blur_overlay_child_update_style_classes (BlurOverlay *overlay,
  gboolean is_left, is_right, is_top, is_bottom;
  gboolean has_left, has_right, has_top, has_bottom;

-  has_left = gtk_widget_has_css_class (child, GTK_STYLE_CLASS_LEFT);
-  has_right = gtk_widget_has_css_class (child, GTK_STYLE_CLASS_RIGHT);
-  has_top = gtk_widget_has_css_class (child, GTK_STYLE_CLASS_TOP);
-  has_bottom = gtk_widget_has_css_class (child, GTK_STYLE_CLASS_BOTTOM);
+  has_left = gtk_widget_has_css_class (child, "left");
+  has_right = gtk_widget_has_css_class (child, "right");
+  has_top = gtk_widget_has_css_class (child, "top");
+  has_bottom = gtk_widget_has_css_class (child, "bottom");

  is_left = is_right = is_top = is_bottom = FALSE;

@@ -158,24 +158,24 @@ blur_overlay_child_update_style_classes (BlurOverlay *overlay,
    is_bottom = (child_allocation->y + child_allocation->height == height);

  if (has_left && !is_left)
-    gtk_widget_remove_css_class (child, GTK_STYLE_CLASS_LEFT);
+    gtk_widget_remove_css_class (child, "left");
  else if (!has_left && is_left)
-    gtk_widget_add_css_class (child, GTK_STYLE_CLASS_LEFT);
+    gtk_widget_add_css_class (child, "left");

  if (has_right && !is_right)
-    gtk_widget_remove_css_class (child, GTK_STYLE_CLASS_RIGHT);
+    gtk_widget_remove_css_class (child, "right");
  else if (!has_right && is_right)
-    gtk_widget_add_css_class (child, GTK_STYLE_CLASS_RIGHT);
+    gtk_widget_add_css_class (child, "right");

  if (has_top && !is_top)
-    gtk_widget_remove_css_class (child, GTK_STYLE_CLASS_TOP);
+    gtk_widget_remove_css_class (child, "top");
  else if (!has_top && is_top)
-    gtk_widget_add_css_class (child, GTK_STYLE_CLASS_TOP);
+    gtk_widget_add_css_class (child, "top");

  if (has_bottom && !is_bottom)
-    gtk_widget_remove_css_class (child, GTK_STYLE_CLASS_BOTTOM);
+    gtk_widget_remove_css_class (child, "bottom");
  else if (!has_bottom && is_bottom)
-    gtk_widget_add_css_class (child, GTK_STYLE_CLASS_BOTTOM);
+    gtk_widget_add_css_class (child, "bottom");
 }

 static void
--- a/demos/gtk-demo/builder.c
+++ b/demos/gtk-demo/builder.c
@@ -21,15 +21,38 @@ about_activate (GSimpleAction *action,
                gpointer       user_data)
 {
  GtkWidget *window = user_data;
-  GtkBuilder *builder;
  GtkWidget *about_dlg;

-  builder = g_object_get_data (G_OBJECT (window), "builder");
-  about_dlg = GTK_WIDGET (gtk_builder_get_object (builder, "aboutdialog1"));
-  gtk_window_set_transient_for (GTK_WINDOW (about_dlg), GTK_WINDOW (window));
-  gtk_window_set_hide_on_close (GTK_WINDOW (about_dlg), TRUE);
-  g_signal_connect (about_dlg, "response", G_CALLBACK (gtk_widget_hide), NULL);
-  gtk_widget_show (about_dlg);
+  about_dlg = GTK_WIDGET (g_object_get_data (G_OBJECT (window), "about"));
+  gtk_window_present (GTK_WINDOW (about_dlg));
+}
+
+static void
+remove_timeout (gpointer data)
+{
+  guint id = GPOINTER_TO_UINT (data);
+
+  g_source_remove (id);
+}
+
+static gboolean
+pop_status (gpointer data)
+{
+  gtk_statusbar_pop (GTK_STATUSBAR (data), 0);
+  g_object_set_data (G_OBJECT (data), "timeout", NULL);
+  return G_SOURCE_REMOVE;
+}
+
+static void
+status_message (GtkStatusbar *status,
+                const char   *text)
+{
+  guint id;
+
+  gtk_statusbar_push (GTK_STATUSBAR (status), 0, text);
+  id = g_timeout_add (5000, pop_status, status);
+
+  g_object_set_data_full (G_OBJECT (status), "timeout", GUINT_TO_POINTER (id), remove_timeout);
 }

 static void
@@ -37,7 +60,10 @@ help_activate (GSimpleAction *action,
               GVariant      *parameter,
               gpointer       user_data)
 {
-  g_print ("Help not available\n");
+  GtkWidget *status;
+
+  status = GTK_WIDGET (g_object_get_data (G_OBJECT (user_data), "status"));
+  status_message (GTK_STATUSBAR (status), "Help not available");
 }

 static void
@@ -45,7 +71,13 @@ not_implemented (GSimpleAction *action,
                 GVariant      *parameter,
                 gpointer       user_data)
 {
-  g_print ("Action “%s” not implemented\n", g_action_get_name (G_ACTION (action)));
+  GtkWidget *status;
+  char *text;
+
+  text = g_strdup_printf ("Action “%s” not implemented", g_action_get_name (G_ACTION (action)));
+  status = GTK_WIDGET (g_object_get_data (G_OBJECT (user_data), "status"));
+  status_message (GTK_STATUSBAR (status), text);
+  g_free (text);
 }

 static GActionEntry win_entries[] = {
@@ -70,6 +102,8 @@ do_builder (GtkWidget *do_widget)
  if (!window)
    {
      GtkBuilder *builder;
+      GtkWidget *about;
+      GtkWidget *status;

      builder = gtk_builder_new_from_resource ("/builder/demo.ui");

@@ -83,6 +117,16 @@ do_builder (GtkWidget *do_widget)
                                       window);
      gtk_widget_insert_action_group (window, "win", actions);

+      about = GTK_WIDGET (gtk_builder_get_object (builder, "aboutdialog1"));
+      gtk_window_set_transient_for (GTK_WINDOW (about), GTK_WINDOW (window));
+      gtk_window_set_hide_on_close (GTK_WINDOW (about), TRUE);
+      g_signal_connect (about, "response", G_CALLBACK (gtk_widget_hide), NULL);
+      g_object_set_data_full (G_OBJECT (window), "about",
+                              about, (GDestroyNotify)gtk_window_destroy);
+
+      status = GTK_WIDGET (gtk_builder_get_object (builder, "statusbar1"));
+      g_object_set_data (G_OBJECT (window), "status", status);
+
      g_object_unref (builder);
    }

--- a/demos/gtk-demo/combobox.c
+++ b/demos/gtk-demo/combobox.c
@@ -38,7 +38,7 @@ create_icon_store (void)

  GtkTreeIter iter;
  GtkListStore *store;
-  gint i;
+  int i;

  store = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_STRING);

@@ -77,7 +77,7 @@ set_sensitive (GtkCellLayout   *cell_layout,
               gpointer         data)
 {
  GtkTreePath *path;
-  gint *indices;
+  int *indices;
  gboolean sensitive;

  path = gtk_tree_model_get_path (tree_model, iter);
@@ -175,7 +175,7 @@ create_capital_store (void)

  GtkTreeIter iter, iter2;
  GtkTreeStore *store;
-  gint i;
+  int i;

  store = gtk_tree_store_new (1, G_TYPE_STRING);

--- a/demos/gtk-demo/constraints.c
+++ b/demos/gtk-demo/constraints.c
@@ -254,15 +254,11 @@ do_constraints (GtkWidget *do_widget)

 if (!window)
   {
-     GtkWidget *header, *box, *grid, *button;
+     GtkWidget *box, *grid;

     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");
-
-     header = gtk_header_bar_new ();
-     gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (header), FALSE);
-     gtk_window_set_titlebar (GTK_WINDOW (window), header);
     g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);

     box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
@@ -272,12 +268,6 @@ do_constraints (GtkWidget *do_widget)
     gtk_widget_set_hexpand (grid, TRUE);
     gtk_widget_set_vexpand (grid, TRUE);
     gtk_box_append (GTK_BOX (box), grid);
-
-     button = gtk_button_new_with_label ("Close");
-     gtk_box_append (GTK_BOX (box), button);
-     gtk_widget_set_hexpand (grid, TRUE);
-     g_signal_connect_swapped (button, "clicked",
-                               G_CALLBACK (gtk_window_destroy), window);
   }

 if (!gtk_widget_get_visible (window))
--- a/demos/gtk-demo/constraints2.c
+++ b/demos/gtk-demo/constraints2.c
@@ -210,15 +210,11 @@ do_constraints2 (GtkWidget *do_widget)

 if (!window)
   {
-     GtkWidget *header, *box, *grid, *button;
+     GtkWidget *box, *grid;

     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");
-
-     header = gtk_header_bar_new ();
-     gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (header), FALSE);
-     gtk_window_set_titlebar (GTK_WINDOW (window), header);
     g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);

     box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
@@ -228,12 +224,6 @@ do_constraints2 (GtkWidget *do_widget)
     gtk_widget_set_hexpand (grid, TRUE);
     gtk_widget_set_vexpand (grid, TRUE);
     gtk_box_append (GTK_BOX (box), grid);
-
-     button = gtk_button_new_with_label ("Close");
-     gtk_box_append (GTK_BOX (box), button);
-     gtk_widget_set_hexpand (grid, TRUE);
-     g_signal_connect_swapped (button, "clicked",
-                               G_CALLBACK (gtk_window_destroy), window);
   }

 if (!gtk_widget_get_visible (window))
--- a/demos/gtk-demo/constraints3.c
+++ b/demos/gtk-demo/constraints3.c
@@ -130,15 +130,11 @@ do_constraints3 (GtkWidget *do_widget)

 if (!window)
   {
-     GtkWidget *header, *box, *grid, *button;
+     GtkWidget *box, *grid;

     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");
-
-     header = gtk_header_bar_new ();
-     gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (header), FALSE);
-     gtk_window_set_titlebar (GTK_WINDOW (window), header);
     g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);

     box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
@@ -148,12 +144,6 @@ do_constraints3 (GtkWidget *do_widget)
     gtk_widget_set_hexpand (grid, TRUE);
     gtk_widget_set_vexpand (grid, TRUE);
     gtk_box_append (GTK_BOX (box), grid);
-
-     button = gtk_button_new_with_label ("Close");
-     gtk_box_append (GTK_BOX (box), button);
-     gtk_widget_set_hexpand (grid, TRUE);
-     g_signal_connect_swapped (button, "clicked",
-                               G_CALLBACK (gtk_window_destroy), window);
   }

 if (!gtk_widget_get_visible (window))
--- a/demos/gtk-demo/css_basics.css
+++ b/demos/gtk-demo/css_basics.css
@@ -15,6 +15,10 @@
  border: 1px solid;
 }

+window {
+  background-color: white;
+}
+
 /* Make sure selections are visible */
 selection {
  background-color: darkGreen;
--- a/demos/gtk-demo/css_blendmodes.c
+++ b/demos/gtk-demo/css_blendmodes.c
@@ -38,14 +38,14 @@ struct {
 #pragma GCC diagnostic ignored "-Wformat-nonliteral"
 static void
 update_css_for_blend_mode (GtkCssProvider *provider,
-                           const gchar    *blend_mode)
+                           const char     *blend_mode)
 {
  GBytes *bytes;
-  gchar *css;
+  char *css;

  bytes = g_resources_lookup_data ("/css_blendmodes/css_blendmodes.css", 0, NULL);

-  css = g_strdup_printf ((gchar*) g_bytes_get_data (bytes, NULL),
+  css = g_strdup_printf ((char *) g_bytes_get_data (bytes, NULL),
                         blend_mode,
                         blend_mode,
                         blend_mode);
@@ -62,7 +62,7 @@ row_activated (GtkListBox     *listbox,
               GtkListBoxRow  *row,
               GtkCssProvider *provider)
 {
-  const gchar *blend_mode;
+  const char *blend_mode;

  blend_mode = blend_modes[gtk_list_box_row_get_index (row)].id;

@@ -75,7 +75,7 @@ setup_listbox (GtkBuilder       *builder,
 {
  GtkWidget *normal_row;
  GtkWidget *listbox;
-  gint i;
+  int i;

  normal_row = NULL;
  listbox = gtk_list_box_new ();
--- a/demos/gtk-demo/css_pixbufs.css
+++ b/demos/gtk-demo/css_pixbufs.css
@@ -46,19 +46,19 @@
 }

@keyframes size-the-image {
-    0% { background-size: 96px, 12px, 96px, 12px, 96px, 12px, 96px, 12px, auto }
-    100% { background-size: 12px, 96px, 12px, 96px, 12px, 96px, 12px, 96px, auto }
+    0% { background-size: 96px, 12px, 96px, 12px, 96px, 12px, 96px, 12px, auto; }
+    100% { background-size: 12px, 96px, 12px, 96px, 12px, 96px, 12px, 96px, auto; }
 }

 window {
-    background-image: url("resource://css_pixbufs/apple-red.png"),
-                      url("resource://css_pixbufs/gnome-applets.png"),
-                      url("resource://css_pixbufs/gnome-calendar.png"),
-                      url("resource://css_pixbufs/gnome-foot.png"),
-                      url("resource://css_pixbufs/gnome-gmush.png"),
-                      url("resource://css_pixbufs/gnome-gimp.png"),
-                      url("resource://css_pixbufs/gnome-gsame.png"),
-                      url("resource://css_pixbufs/gnu-keys.png"),
+    background-image: url("resource://css_pixbufs/images/apple-red.png"),
+                      url("resource://css_pixbufs/images/gnome-applets.png"),
+                      url("resource://css_pixbufs/images/gnome-calendar.png"),
+                      url("resource://css_pixbufs/images/gnome-foot.png"),
+                      url("resource://css_pixbufs/images/gnome-gmush.png"),
+                      url("resource://css_pixbufs/images/gnome-gimp.png"),
+                      url("resource://css_pixbufs/images/gnome-gsame.png"),
+                      url("resource://css_pixbufs/images/gnu-keys.png"),
                      url("resource://css_pixbufs/background.jpg");
    background-position: 50.00% 75.00%, 67.68% 67.68%, 75.00% 50.00%, 67.68% 32.32%, 50.00% 25.00%, 32.32% 32.32%, 25.00% 50.00%, 32.32% 67.68%, 0% 0%;
    background-repeat: no-repeat, no-repeat, no-repeat, no-repeat, no-repeat, no-repeat, no-repeat, no-repeat, repeat;
--- a/demos/gtk-demo/css_shadows.c
+++ b/demos/gtk-demo/css_shadows.c
@@ -106,6 +106,7 @@ do_css_shadows (GtkWidget *do_widget)

      child = create_toolbar ();
      gtk_paned_set_start_child (GTK_PANED (paned), child);
+      gtk_paned_set_resize_start_child (GTK_PANED (paned), FALSE);

      text = gtk_text_buffer_new (NULL);
      gtk_text_buffer_create_tag (text,
--- a/demos/gtk-demo/cursors.ui
+++ b/demos/gtk-demo/cursors.ui
@@ -4,7 +4,7 @@
    <property name="name">default</property>
  </object>
  <object class="GdkCursor" id="default_cursor_image">
-    <property name="texture">resource:///cursors/default_cursor.png</property>
+    <property name="texture">resource:///cursors/images/default_cursor.png</property>
    <property name="hotspot-x">5</property>
    <property name="hotspot-y">5</property>
  </object>
@@ -13,7 +13,7 @@
    <property name="fallback">default_cursor_image</property>
  </object>
  <object class="GdkCursor" id="default_cursor_image_fallback">
-    <property name="texture">resource:///cursors/default_cursor.png</property>
+    <property name="texture">resource:///cursors/images/default_cursor.png</property>
    <property name="hotspot-x">5</property>
    <property name="hotspot-y">5</property>
    <property name="fallback">default_cursor</property>
@@ -22,21 +22,21 @@
    <property name="name">none</property>
  </object>
  <object class="GdkCursor" id="none_cursor_image">
-    <property name="texture">resource:///cursors/none_cursor.png</property>
+    <property name="texture">resource:///cursors/images/none_cursor.png</property>
  </object>
  <object class="GdkCursor" id="none_cursor_fallback">
    <property name="name">none</property>
    <property name="fallback">none_cursor_image</property>
  </object>
  <object class="GdkCursor" id="none_cursor_image_fallback">
-    <property name="texture">resource:///cursors/none_cursor.png</property>
+    <property name="texture">resource:///cursors/images/none_cursor.png</property>
    <property name="fallback">none_cursor</property>
  </object>
  <object class="GdkCursor" id="gtk-logo_cursor">
    <property name="name">gtk-logo</property>
  </object>
  <object class="GdkCursor" id="gtk-logo_cursor_image">
-    <property name="texture">resource:///cursors/gtk_logo_cursor.png</property>
+    <property name="texture">resource:///cursors/images/gtk_logo_cursor.png</property>
    <property name="hotspot-x">18</property>
    <property name="hotspot-y">2</property>
  </object>
@@ -45,7 +45,7 @@
    <property name="fallback">gtk-logo_cursor_image</property>
  </object>
  <object class="GdkCursor" id="gtk-logo_cursor_image_fallback">
-    <property name="texture">resource:///cursors/gtk_logo_cursor.png</property>
+    <property name="texture">resource:///cursors/images/gtk_logo_cursor.png</property>
    <property name="hotspot-x">18</property>
    <property name="hotspot-y">2</property>
    <property name="fallback">gtk-logo_cursor</property>
@@ -54,7 +54,7 @@
    <property name="name">context-menu</property>
  </object>
  <object class="GdkCursor" id="context-menu_cursor_image">
-    <property name="texture">resource:///cursors/context_menu_cursor.png</property>
+    <property name="texture">resource:///cursors/images/context_menu_cursor.png</property>
    <property name="hotspot-x">5</property>
    <property name="hotspot-y">5</property>
  </object>
@@ -63,7 +63,7 @@
    <property name="fallback">context-menu_cursor_image</property>
  </object>
  <object class="GdkCursor" id="context-menu_cursor_image_fallback">
-    <property name="texture">resource:///cursors/context_menu_cursor.png</property>
+    <property name="texture">resource:///cursors/images/context_menu_cursor.png</property>
    <property name="hotspot-x">5</property>
    <property name="hotspot-y">5</property>
    <property name="fallback">context-menu_cursor</property>
@@ -72,7 +72,7 @@
    <property name="name">help</property>
  </object>
  <object class="GdkCursor" id="help_cursor_image">
-    <property name="texture">resource:///cursors/help_cursor.png</property>
+    <property name="texture">resource:///cursors/images/help_cursor.png</property>
    <property name="hotspot-x">16</property>
    <property name="hotspot-y">27</property>
  </object>
@@ -81,7 +81,7 @@
    <property name="fallback">help_cursor_image</property>
  </object>
  <object class="GdkCursor" id="help_cursor_image_fallback">
-    <property name="texture">resource:///cursors/help_cursor.png</property>
+    <property name="texture">resource:///cursors/images/help_cursor.png</property>
    <property name="hotspot-x">16</property>
    <property name="hotspot-y">27</property>
    <property name="fallback">help_cursor</property>
@@ -90,7 +90,7 @@
    <property name="name">pointer</property>
  </object>
  <object class="GdkCursor" id="pointer_cursor_image">
-    <property name="texture">resource:///cursors/pointer_cursor.png</property>
+    <property name="texture">resource:///cursors/images/pointer_cursor.png</property>
    <property name="hotspot-x">14</property>
    <property name="hotspot-y">9</property>
  </object>
@@ -99,7 +99,7 @@
    <property name="fallback">pointer_cursor_image</property>
  </object>
  <object class="GdkCursor" id="pointer_cursor_image_fallback">
-    <property name="texture">resource:///cursors/pointer_cursor.png</property>
+    <property name="texture">resource:///cursors/images/pointer_cursor.png</property>
    <property name="hotspot-x">14</property>
    <property name="hotspot-y">9</property>
    <property name="fallback">pointer_cursor</property>
@@ -108,7 +108,7 @@
    <property name="name">progress</property>
  </object>
  <object class="GdkCursor" id="progress_cursor_image">
-    <property name="texture">resource:///cursors/progress_cursor.png</property>
+    <property name="texture">resource:///cursors/images/progress_cursor.png</property>
    <property name="hotspot-x">5</property>
    <property name="hotspot-y">4</property>
  </object>
@@ -117,7 +117,7 @@
    <property name="fallback">progress_cursor_image</property>
  </object>
  <object class="GdkCursor" id="progress_cursor_image_fallback">
-    <property name="texture">resource:///cursors/progress_cursor.png</property>
+    <property name="texture">resource:///cursors/images/progress_cursor.png</property>
    <property name="hotspot-x">5</property>
    <property name="hotspot-y">4</property>
    <property name="fallback">progress_cursor</property>
@@ -126,7 +126,7 @@
    <property name="name">wait</property>
  </object>
  <object class="GdkCursor" id="wait_cursor_image">
-    <property name="texture">resource:///cursors/wait_cursor.png</property>
+    <property name="texture">resource:///cursors/images/wait_cursor.png</property>
    <property name="hotspot-x">11</property>
    <property name="hotspot-y">11</property>
  </object>
@@ -135,7 +135,7 @@
    <property name="fallback">wait_cursor_image</property>
  </object>
  <object class="GdkCursor" id="wait_cursor_image_fallback">
-    <property name="texture">resource:///cursors/wait_cursor.png</property>
+    <property name="texture">resource:///cursors/images/wait_cursor.png</property>
    <property name="hotspot-x">11</property>
    <property name="hotspot-y">11</property>
    <property name="fallback">wait_cursor</property>
@@ -144,7 +144,7 @@
    <property name="name">cell</property>
  </object>
  <object class="GdkCursor" id="cell_cursor_image">
-    <property name="texture">resource:///cursors/cell_cursor.png</property>
+    <property name="texture">resource:///cursors/images/cell_cursor.png</property>
    <property name="hotspot-x">15</property>
    <property name="hotspot-y">15</property>
  </object>
@@ -153,7 +153,7 @@
    <property name="fallback">cell_cursor_image</property>
  </object>
  <object class="GdkCursor" id="cell_cursor_image_fallback">
-    <property name="texture">resource:///cursors/cell_cursor.png</property>
+    <property name="texture">resource:///cursors/images/cell_cursor.png</property>
    <property name="hotspot-x">15</property>
    <property name="hotspot-y">15</property>
    <property name="fallback">cell_cursor</property>
@@ -162,7 +162,7 @@
    <property name="name">crosshair</property>
  </object>
  <object class="GdkCursor" id="crosshair_cursor_image">
-    <property name="texture">resource:///cursors/crosshair_cursor.png</property>
+    <property name="texture">resource:///cursors/images/crosshair_cursor.png</property>
    <property name="hotspot-x">15</property>
    <property name="hotspot-y">15</property>
  </object>
@@ -171,7 +171,7 @@
    <property name="fallback">crosshair_cursor_image</property>
  </object>
  <object class="GdkCursor" id="crosshair_cursor_image_fallback">
-    <property name="texture">resource:///cursors/crosshair_cursor.png</property>
+    <property name="texture">resource:///cursors/images/crosshair_cursor.png</property>
    <property name="hotspot-x">15</property>
    <property name="hotspot-y">15</property>
    <property name="fallback">crosshair_cursor</property>
@@ -180,7 +180,7 @@
    <property name="name">text</property>
  </object>
  <object class="GdkCursor" id="text_cursor_image">
-    <property name="texture">resource:///cursors/text_cursor.png</property>
+    <property name="texture">resource:///cursors/images/text_cursor.png</property>
    <property name="hotspot-x">14</property>
    <property name="hotspot-y">15</property>
  </object>
@@ -189,7 +189,7 @@
    <property name="fallback">text_cursor_image</property>
  </object>
  <object class="GdkCursor" id="text_cursor_image_fallback">
-    <property name="texture">resource:///cursors/text_cursor.png</property>
+    <property name="texture">resource:///cursors/images/text_cursor.png</property>
    <property name="hotspot-x">14</property>
    <property name="hotspot-y">15</property>
    <property name="fallback">text_cursor</property>
@@ -198,7 +198,7 @@
    <property name="name">vertical-text</property>
  </object>
  <object class="GdkCursor" id="vertical-text_cursor_image">
-    <property name="texture">resource:///cursors/vertical_text_cursor.png</property>
+    <property name="texture">resource:///cursors/images/vertical_text_cursor.png</property>
    <property name="hotspot-x">16</property>
    <property name="hotspot-y">15</property>
  </object>
@@ -207,7 +207,7 @@
    <property name="fallback">vertical-text_cursor_image</property>
  </object>
  <object class="GdkCursor" id="vertical-text_cursor_image_fallback">
-    <property name="texture">resource:///cursors/vertical_text_cursor.png</property>
+    <property name="texture">resource:///cursors/images/vertical_text_cursor.png</property>
    <property name="hotspot-x">16</property>
    <property name="hotspot-y">15</property>
    <property name="fallback">vertical-text_cursor</property>
@@ -216,7 +216,7 @@
    <property name="name">alias</property>
  </object>
  <object class="GdkCursor" id="alias_cursor_image">
-    <property name="texture">resource:///cursors/alias_cursor.png</property>
+    <property name="texture">resource:///cursors/images/alias_cursor.png</property>
    <property name="hotspot-x">12</property>
    <property name="hotspot-y">11</property>
  </object>
@@ -225,7 +225,7 @@
    <property name="fallback">alias_cursor_image</property>
  </object>
  <object class="GdkCursor" id="alias_cursor_image_fallback">
-    <property name="texture">resource:///cursors/alias_cursor.png</property>
+    <property name="texture">resource:///cursors/images/alias_cursor.png</property>
    <property name="hotspot-x">12</property>
    <property name="hotspot-y">11</property>
    <property name="fallback">alias_cursor</property>
@@ -234,7 +234,7 @@
    <property name="name">copy</property>
  </object>
  <object class="GdkCursor" id="copy_cursor_image">
-    <property name="texture">resource:///cursors/copy_cursor.png</property>
+    <property name="texture">resource:///cursors/images/copy_cursor.png</property>
    <property name="hotspot-x">12</property>
    <property name="hotspot-y">11</property>
  </object>
@@ -243,7 +243,7 @@
    <property name="fallback">copy_cursor_image</property>
  </object>
  <object class="GdkCursor" id="copy_cursor_image_fallback">
-    <property name="texture">resource:///cursors/copy_cursor.png</property>
+    <property name="texture">resource:///cursors/images/copy_cursor.png</property>
    <property name="hotspot-x">12</property>
    <property name="hotspot-y">11</property>
    <property name="fallback">copy_cursor</property>
@@ -252,7 +252,7 @@
    <property name="name">move</property>
  </object>
  <object class="GdkCursor" id="move_cursor_image">
-    <property name="texture">resource:///cursors/move_cursor.png</property>
+    <property name="texture">resource:///cursors/images/move_cursor.png</property>
    <property name="hotspot-x">12</property>
    <property name="hotspot-y">11</property>
  </object>
@@ -261,7 +261,7 @@
    <property name="fallback">move_cursor_image</property>
  </object>
  <object class="GdkCursor" id="move_cursor_image_fallback">
-    <property name="texture">resource:///cursors/move_cursor.png</property>
+    <property name="texture">resource:///cursors/images/move_cursor.png</property>
    <property name="hotspot-x">12</property>
    <property name="hotspot-y">11</property>
    <property name="fallback">move_cursor</property>
@@ -270,7 +270,7 @@
    <property name="name">no-drop</property>
  </object>
  <object class="GdkCursor" id="no-drop_cursor_image">
-    <property name="texture">resource:///cursors/no_drop_cursor.png</property>
+    <property name="texture">resource:///cursors/images/no_drop_cursor.png</property>
    <property name="hotspot-x">12</property>
    <property name="hotspot-y">11</property>
  </object>
@@ -279,7 +279,7 @@
    <property name="fallback">no-drop_cursor_image</property>
  </object>
  <object class="GdkCursor" id="no-drop_cursor_image_fallback">
-    <property name="texture">resource:///cursors/no_drop_cursor.png</property>
+    <property name="texture">resource:///cursors/images/no_drop_cursor.png</property>
    <property name="hotspot-x">12</property>
    <property name="hotspot-y">11</property>
    <property name="fallback">no-drop_cursor</property>
@@ -288,7 +288,7 @@
    <property name="name">not-allowed</property>
  </object>
  <object class="GdkCursor" id="not-allowed_cursor_image">
-    <property name="texture">resource:///cursors/not_allowed_cursor.png</property>
+    <property name="texture">resource:///cursors/images/not_allowed_cursor.png</property>
    <property name="hotspot-x">12</property>
    <property name="hotspot-y">11</property>
  </object>
@@ -297,7 +297,7 @@
    <property name="fallback">not-allowed_cursor_image</property>
  </object>
  <object class="GdkCursor" id="not-allowed_cursor_image_fallback">
-    <property name="texture">resource:///cursors/not_allowed_cursor.png</property>
+    <property name="texture">resource:///cursors/images/not_allowed_cursor.png</property>
    <property name="hotspot-x">12</property>
    <property name="hotspot-y">11</property>
    <property name="fallback">not-allowed_cursor</property>
@@ -306,7 +306,7 @@
    <property name="name">grab</property>
  </object>
  <object class="GdkCursor" id="grab_cursor_image">
-    <property name="texture">resource:///cursors/grab_cursor.png</property>
+    <property name="texture">resource:///cursors/images/grab_cursor.png</property>
    <property name="hotspot-x">10</property>
    <property name="hotspot-y">6</property>
  </object>
@@ -315,7 +315,7 @@
    <property name="fallback">grab_cursor_image</property>
  </object>
  <object class="GdkCursor" id="grab_cursor_image_fallback">
-    <property name="texture">resource:///cursors/grab_cursor.png</property>
+    <property name="texture">resource:///cursors/images/grab_cursor.png</property>
    <property name="hotspot-x">10</property>
    <property name="hotspot-y">6</property>
    <property name="fallback">grab_cursor</property>
@@ -324,7 +324,7 @@
    <property name="name">grabbing</property>
  </object>
  <object class="GdkCursor" id="grabbing_cursor_image">
-    <property name="texture">resource:///cursors/grabbing_cursor.png</property>
+    <property name="texture">resource:///cursors/images/grabbing_cursor.png</property>
    <property name="hotspot-x">15</property>
    <property name="hotspot-y">14</property>
  </object>
@@ -333,7 +333,7 @@
    <property name="fallback">grabbing_cursor_image</property>
  </object>
  <object class="GdkCursor" id="grabbing_cursor_image_fallback">
-    <property name="texture">resource:///cursors/grabbing_cursor.png</property>
+    <property name="texture">resource:///cursors/images/grabbing_cursor.png</property>
    <property name="hotspot-x">15</property>
    <property name="hotspot-y">14</property>
    <property name="fallback">grabbing_cursor</property>
@@ -342,7 +342,7 @@
    <property name="name">all-scroll</property>
  </object>
  <object class="GdkCursor" id="all-scroll_cursor_image">
-    <property name="texture">resource:///cursors/all_scroll_cursor.png</property>
+    <property name="texture">resource:///cursors/images/all_scroll_cursor.png</property>
    <property name="hotspot-x">15</property>
    <property name="hotspot-y">15</property>
  </object>
@@ -351,7 +351,7 @@
    <property name="fallback">all-scroll_cursor_image</property>
  </object>
  <object class="GdkCursor" id="all-scroll_cursor_image_fallback">
-    <property name="texture">resource:///cursors/all_scroll_cursor.png</property>
+    <property name="texture">resource:///cursors/images/all_scroll_cursor.png</property>
    <property name="hotspot-x">15</property>
    <property name="hotspot-y">15</property>
    <property name="fallback">all-scroll_cursor</property>
@@ -360,7 +360,7 @@
    <property name="name">col-resize</property>
  </object>
  <object class="GdkCursor" id="col-resize_cursor_image">
-    <property name="texture">resource:///cursors/col_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/col_resize_cursor.png</property>
    <property name="hotspot-x">16</property>
    <property name="hotspot-y">15</property>
  </object>
@@ -369,7 +369,7 @@
    <property name="fallback">col-resize_cursor_image</property>
  </object>
  <object class="GdkCursor" id="col-resize_cursor_image_fallback">
-    <property name="texture">resource:///cursors/col_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/col_resize_cursor.png</property>
    <property name="hotspot-x">16</property>
    <property name="hotspot-y">15</property>
    <property name="fallback">col-resize_cursor</property>
@@ -378,7 +378,7 @@
    <property name="name">row-resize</property>
  </object>
  <object class="GdkCursor" id="row-resize_cursor_image">
-    <property name="texture">resource:///cursors/row_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/row_resize_cursor.png</property>
    <property name="hotspot-x">15</property>
    <property name="hotspot-y">17</property>
  </object>
@@ -387,7 +387,7 @@
    <property name="fallback">row-resize_cursor_image</property>
  </object>
  <object class="GdkCursor" id="row-resize_cursor_image_fallback">
-    <property name="texture">resource:///cursors/row_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/row_resize_cursor.png</property>
    <property name="hotspot-x">15</property>
    <property name="hotspot-y">17</property>
    <property name="fallback">row-resize_cursor</property>
@@ -396,7 +396,7 @@
    <property name="name">n-resize</property>
  </object>
  <object class="GdkCursor" id="n-resize_cursor_image">
-    <property name="texture">resource:///cursors/n_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/n_resize_cursor.png</property>
    <property name="hotspot-x">17</property>
    <property name="hotspot-y">7</property>
  </object>
@@ -405,7 +405,7 @@
    <property name="fallback">n-resize_cursor_image</property>
  </object>
  <object class="GdkCursor" id="n-resize_cursor_image_fallback">
-    <property name="texture">resource:///cursors/n_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/n_resize_cursor.png</property>
    <property name="hotspot-x">17</property>
    <property name="hotspot-y">7</property>
    <property name="fallback">n-resize_cursor</property>
@@ -414,7 +414,7 @@
    <property name="name">e-resize</property>
  </object>
  <object class="GdkCursor" id="e-resize_cursor_image">
-    <property name="texture">resource:///cursors/e_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/e_resize_cursor.png</property>
    <property name="hotspot-x">25</property>
    <property name="hotspot-y">17</property>
  </object>
@@ -423,7 +423,7 @@
    <property name="fallback">e-resize_cursor_image</property>
  </object>
  <object class="GdkCursor" id="e-resize_cursor_image_fallback">
-    <property name="texture">resource:///cursors/e_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/e_resize_cursor.png</property>
    <property name="hotspot-x">25</property>
    <property name="hotspot-y">17</property>
    <property name="fallback">e-resize_cursor</property>
@@ -432,7 +432,7 @@
    <property name="name">s-resize</property>
  </object>
  <object class="GdkCursor" id="s-resize_cursor_image">
-    <property name="texture">resource:///cursors/s_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/s_resize_cursor.png</property>
    <property name="hotspot-x">17</property>
    <property name="hotspot-y">23</property>
  </object>
@@ -441,7 +441,7 @@
    <property name="fallback">s-resize_cursor_image</property>
  </object>
  <object class="GdkCursor" id="s-resize_cursor_image_fallback">
-    <property name="texture">resource:///cursors/s_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/s_resize_cursor.png</property>
    <property name="hotspot-x">17</property>
    <property name="hotspot-y">23</property>
    <property name="fallback">s-resize_cursor</property>
@@ -450,7 +450,7 @@
    <property name="name">w-resize</property>
  </object>
  <object class="GdkCursor" id="w-resize_cursor_image">
-    <property name="texture">resource:///cursors/w_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/w_resize_cursor.png</property>
    <property name="hotspot-x">8</property>
    <property name="hotspot-y">17</property>
  </object>
@@ -459,7 +459,7 @@
    <property name="fallback">w-resize_cursor_image</property>
  </object>
  <object class="GdkCursor" id="w-resize_cursor_image_fallback">
-    <property name="texture">resource:///cursors/w_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/w_resize_cursor.png</property>
    <property name="hotspot-x">8</property>
    <property name="hotspot-y">17</property>
    <property name="fallback">w-resize_cursor</property>
@@ -468,7 +468,7 @@
    <property name="name">ne-resize</property>
  </object>
  <object class="GdkCursor" id="ne-resize_cursor_image">
-    <property name="texture">resource:///cursors/ne_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/ne_resize_cursor.png</property>
    <property name="hotspot-x">20</property>
    <property name="hotspot-y">13</property>
  </object>
@@ -477,7 +477,7 @@
    <property name="fallback">ne-resize_cursor_image</property>
  </object>
  <object class="GdkCursor" id="ne-resize_cursor_image_fallback">
-    <property name="texture">resource:///cursors/ne_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/ne_resize_cursor.png</property>
    <property name="hotspot-x">20</property>
    <property name="hotspot-y">13</property>
    <property name="fallback">ne-resize_cursor</property>
@@ -486,7 +486,7 @@
    <property name="name">nw-resize</property>
  </object>
  <object class="GdkCursor" id="nw-resize_cursor_image">
-    <property name="texture">resource:///cursors/nw_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/nw_resize_cursor.png</property>
    <property name="hotspot-x">13</property>
    <property name="hotspot-y">13</property>
  </object>
@@ -495,7 +495,7 @@
    <property name="fallback">nw-resize_cursor_image</property>
  </object>
  <object class="GdkCursor" id="nw-resize_cursor_image_fallback">
-    <property name="texture">resource:///cursors/nw_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/nw_resize_cursor.png</property>
    <property name="hotspot-x">13</property>
    <property name="hotspot-y">13</property>
    <property name="fallback">nw-resize_cursor</property>
@@ -504,7 +504,7 @@
    <property name="name">se-resize</property>
  </object>
  <object class="GdkCursor" id="se-resize_cursor_image">
-    <property name="texture">resource:///cursors/se_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/se_resize_cursor.png</property>
    <property name="hotspot-x">19</property>
    <property name="hotspot-y">19</property>
  </object>
@@ -513,7 +513,7 @@
    <property name="fallback">se-resize_cursor_image</property>
  </object>
  <object class="GdkCursor" id="se-resize_cursor_image_fallback">
-    <property name="texture">resource:///cursors/se_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/se_resize_cursor.png</property>
    <property name="hotspot-x">19</property>
    <property name="hotspot-y">19</property>
    <property name="fallback">se-resize_cursor</property>
@@ -522,7 +522,7 @@
    <property name="name">sw-resize</property>
  </object>
  <object class="GdkCursor" id="sw-resize_cursor_image">
-    <property name="texture">resource:///cursors/sw_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/sw_resize_cursor.png</property>
    <property name="hotspot-x">13</property>
    <property name="hotspot-y">19</property>
  </object>
@@ -531,7 +531,7 @@
    <property name="fallback">sw-resize_cursor_image</property>
  </object>
  <object class="GdkCursor" id="sw-resize_cursor_image_fallback">
-    <property name="texture">resource:///cursors/sw_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/sw_resize_cursor.png</property>
    <property name="hotspot-x">13</property>
    <property name="hotspot-y">19</property>
    <property name="fallback">sw-resize_cursor</property>
@@ -540,7 +540,7 @@
    <property name="name">ew-resize</property>
  </object>
  <object class="GdkCursor" id="ew-resize_cursor_image">
-    <property name="texture">resource:///cursors/ew_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/ew_resize_cursor.png</property>
    <property name="hotspot-x">16</property>
    <property name="hotspot-y">15</property>
  </object>
@@ -549,7 +549,7 @@
    <property name="fallback">ew-resize_cursor_image</property>
  </object>
  <object class="GdkCursor" id="ew-resize_cursor_image_fallback">
-    <property name="texture">resource:///cursors/ew_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/ew_resize_cursor.png</property>
    <property name="hotspot-x">16</property>
    <property name="hotspot-y">15</property>
    <property name="fallback">ew-resize_cursor</property>
@@ -558,7 +558,7 @@
    <property name="name">ns-resize</property>
  </object>
  <object class="GdkCursor" id="ns-resize_cursor_image">
-    <property name="texture">resource:///cursors/ns_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/ns_resize_cursor.png</property>
    <property name="hotspot-x">15</property>
    <property name="hotspot-y">17</property>
  </object>
@@ -567,7 +567,7 @@
    <property name="fallback">ns-resize_cursor_image</property>
  </object>
  <object class="GdkCursor" id="ns-resize_cursor_image_fallback">
-    <property name="texture">resource:///cursors/ns_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/ns_resize_cursor.png</property>
    <property name="hotspot-x">15</property>
    <property name="hotspot-y">17</property>
    <property name="fallback">ns-resize_cursor</property>
@@ -576,7 +576,7 @@
    <property name="name">nesw-resize</property>
  </object>
  <object class="GdkCursor" id="nesw-resize_cursor_image">
-    <property name="texture">resource:///cursors/nesw_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/nesw_resize_cursor.png</property>
    <property name="hotspot-x">14</property>
    <property name="hotspot-y">14</property>
  </object>
@@ -585,7 +585,7 @@
    <property name="fallback">nesw-resize_cursor_image</property>
  </object>
  <object class="GdkCursor" id="nesw-resize_cursor_image_fallback">
-    <property name="texture">resource:///cursors/nesw_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/nesw_resize_cursor.png</property>
    <property name="hotspot-x">14</property>
    <property name="hotspot-y">14</property>
    <property name="fallback">nesw-resize_cursor</property>
@@ -594,7 +594,7 @@
    <property name="name">nwse-resize</property>
  </object>
  <object class="GdkCursor" id="nwse-resize_cursor_image">
-    <property name="texture">resource:///cursors/nwse_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/nwse_resize_cursor.png</property>
    <property name="hotspot-x">14</property>
    <property name="hotspot-y">14</property>
  </object>
@@ -603,7 +603,7 @@
    <property name="fallback">nwse-resize_cursor_image</property>
  </object>
  <object class="GdkCursor" id="nwse-resize_cursor_image_fallback">
-    <property name="texture">resource:///cursors/nwse_resize_cursor.png</property>
+    <property name="texture">resource:///cursors/images/nwse_resize_cursor.png</property>
    <property name="hotspot-x">14</property>
    <property name="hotspot-y">14</property>
    <property name="fallback">nwse-resize_cursor</property>
@@ -612,7 +612,7 @@
    <property name="name">zoom-in</property>
  </object>
  <object class="GdkCursor" id="zoom-in_cursor_image">
-    <property name="texture">resource:///cursors/zoom_in_cursor.png</property>
+    <property name="texture">resource:///cursors/images/zoom_in_cursor.png</property>
    <property name="hotspot-x">14</property>
    <property name="hotspot-y">13</property>
  </object>
@@ -621,7 +621,7 @@
    <property name="fallback">zoom-in_cursor_image</property>
  </object>
  <object class="GdkCursor" id="zoom-in_cursor_image_fallback">
-    <property name="texture">resource:///cursors/zoom_in_cursor.png</property>
+    <property name="texture">resource:///cursors/images/zoom_in_cursor.png</property>
    <property name="hotspot-x">14</property>
    <property name="hotspot-y">13</property>
    <property name="fallback">zoom-in_cursor</property>
@@ -630,7 +630,7 @@
    <property name="name">zoom-out</property>
  </object>
  <object class="GdkCursor" id="zoom-out_cursor_image">
-    <property name="texture">resource:///cursors/zoom_out_cursor.png</property>
+    <property name="texture">resource:///cursors/images/zoom_out_cursor.png</property>
    <property name="hotspot-x">14</property>
    <property name="hotspot-y">13</property>
  </object>
@@ -639,7 +639,7 @@
    <property name="fallback">zoom-out_cursor_image</property>
  </object>
  <object class="GdkCursor" id="zoom-out_cursor_image_fallback">
-    <property name="texture">resource:///cursors/zoom_out_cursor.png</property>
+    <property name="texture">resource:///cursors/images/zoom_out_cursor.png</property>
    <property name="hotspot-x">14</property>
    <property name="hotspot-y">13</property>
    <property name="fallback">zoom-out_cursor</property>
@@ -682,7 +682,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/default_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/default_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -742,7 +742,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/none_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/none_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -802,7 +802,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/gtk_logo_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/gtk_logo_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -875,7 +875,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/context_menu_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/context_menu_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -935,7 +935,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/help_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/help_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -995,7 +995,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/pointer_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/pointer_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -1055,7 +1055,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/progress_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/progress_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -1115,7 +1115,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/wait_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/wait_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -1188,7 +1188,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/cell_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/cell_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -1248,7 +1248,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/crosshair_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/crosshair_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -1308,7 +1308,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/text_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/text_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -1368,7 +1368,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/vertical_text_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/vertical_text_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -1441,7 +1441,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/alias_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/alias_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -1501,7 +1501,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/copy_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/copy_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -1561,7 +1561,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/move_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/move_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -1621,7 +1621,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/no_drop_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/no_drop_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -1681,7 +1681,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/not_allowed_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/not_allowed_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -1741,7 +1741,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/grab_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/grab_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -1801,7 +1801,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/grabbing_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/grabbing_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -1874,7 +1874,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/all_scroll_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/all_scroll_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -1934,7 +1934,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/col_resize_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/col_resize_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -1994,7 +1994,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/row_resize_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/row_resize_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -2054,7 +2054,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/n_resize_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/n_resize_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -2114,7 +2114,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/e_resize_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/e_resize_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -2174,7 +2174,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/s_resize_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/s_resize_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -2234,7 +2234,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/w_resize_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/w_resize_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -2294,7 +2294,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/ne_resize_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/ne_resize_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -2354,7 +2354,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/nw_resize_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/nw_resize_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -2414,7 +2414,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/sw_resize_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/sw_resize_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -2474,7 +2474,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/se_resize_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/se_resize_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -2534,7 +2534,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/ew_resize_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/ew_resize_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -2594,7 +2594,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/ns_resize_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/ns_resize_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -2654,7 +2654,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/nesw_resize_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/nesw_resize_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -2714,7 +2714,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/nwse_resize_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/nwse_resize_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -2787,7 +2787,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/zoom_in_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/zoom_in_cursor.png</property>
                              </object>
                            </child>
                            <child>
@@ -2847,7 +2847,7 @@
                            <property name="spacing">10</property>
                            <child>
                              <object class="GtkImage">
-                                <property name="paintable">resource:///cursors/zoom_out_cursor.png</property>
+                                <property name="paintable">resource:///cursors/images/zoom_out_cursor.png</property>
                              </object>
                            </child>
                            <child>
--- a/demos/gtk-demo/demo.gresource.xml
+++ b/demos/gtk-demo/demo.gresource.xml
@@ -51,6 +51,8 @@
    <file>cssview.css</file>
    <file>reset.css</file>
    <file>background.jpg</file>
+  </gresource>
+  <gresource prefix="/css_pixbufs/images">
    <file>apple-red.png</file>
    <file>gnome-applets.png</file>
    <file>gnome-calendar.png</file>
@@ -67,6 +69,8 @@
  </gresource>
  <gresource prefix="/cursors">
    <file>cursors.ui</file>
+  </gresource>
+  <gresource prefix="/cursors/images">
    <file>alias_cursor.png</file>
    <file>all_scroll_cursor.png</file>
    <file>cell_cursor.png</file>
@@ -124,6 +128,24 @@
    <file>gnome-fs-directory.png</file>
    <file>gnome-fs-regular.png</file>
  </gresource>
+  <gresource prefix="/layoutmanager">
+    <file>demolayout.h</file>
+    <file>demolayout.c</file>
+    <file>demowidget.h</file>
+    <file>demowidget.c</file>
+    <file>demochild.h</file>
+    <file>demochild.c</file>
+  </gresource>
+  <gresource prefix="/layoutmanager2">
+    <file>demo2layout.h</file>
+    <file>demo2layout.c</file>
+    <file>demo2widget.h</file>
+    <file>demo2widget.c</file>
+    <file>four_point_transform.h</file>
+    <file>four_point_transform.c</file>
+    <file>singular_value_decomposition.h</file>
+    <file>singular_value_decomposition.c</file>
+  </gresource>
  <gresource prefix="/listview_filebrowser">
    <file>listview_filebrowser.ui</file>
    <file>listview_filebrowser.css</file>
@@ -140,6 +162,7 @@
  </gresource>
  <gresource prefix="/listview_colors">
    <file compressed="true">color.names.txt</file>
+    <file>listview_colors.css</file>
  </gresource>
  <gresource prefix="/shortcuts">
    <file>shortcuts.ui</file>
@@ -164,17 +187,6 @@
    <file>floppybuddy.gif</file>
    <file>gtk-logo.webm</file>
  </gresource>
-  <gresource prefix="/pixbufs">
-    <file>apple-red.png</file>
-    <file>background.jpg</file>
-    <file>gnome-applets.png</file>
-    <file>gnome-calendar.png</file>
-    <file>gnome-foot.png</file>
-    <file>gnome-gmush.png</file>
-    <file>gnome-gimp.png</file>
-    <file>gnome-gsame.png</file>
-    <file>gnu-keys.png</file>
-  </gresource>
  <gresource prefix="/sources">
    <file>application_demo.c</file>
    <file>assistant.c</file>
@@ -216,8 +228,11 @@
    <file>iconview_edit.c</file>
    <file>images.c</file>
    <file>infobar.c</file>
+    <file>layoutmanager.c</file>
+    <file>layoutmanager2.c</file>
    <file>links.c</file>
    <file>listbox.c</file>
+    <file>listbox2.c</file>
    <file>listview_applauncher.c</file>
    <file>listview_colors.c</file>
    <file>listview_clocks.c</file>
@@ -225,9 +240,9 @@
    <file>listview_minesweeper.c</file>
    <file>listview_settings.c</file>
    <file>listview_weather.c</file>
+    <file>listview_words.c</file>
    <file>list_store.c</file>
    <file>markup.c</file>
-    <file>modelbutton.c</file>
    <file>overlay.c</file>
    <file>overlay2.c</file>
    <file>paint.c</file>
@@ -239,7 +254,6 @@
    <file>password_entry.c</file>
    <file>peg_solitaire.c</file>
    <file>pickers.c</file>
-    <file>pixbufs.c</file>
    <file>printing.c</file>
    <file>revealer.c</file>
    <file>rotated_text.c</file>
@@ -277,6 +291,9 @@
    <file>messages.txt</file>
    <file>apple-red.png</file>
  </gresource>
+  <gresource prefix="/listbox2">
+    <file>listbox2.ui</file>
+  </gresource>
  <gresource prefix="/glarea">
    <file>glarea-gl.fs.glsl</file>
    <file>glarea-gl.vs.glsl</file>
@@ -308,9 +325,6 @@
  <gresource prefix="/scale">
    <file>scale.ui</file>
  </gresource>
-  <gresource prefix="/modelbutton">
-    <file>modelbutton.ui</file>
-  </gresource>
  <gresource prefix="/tagged_entry">
    <file>demotaggedentry.c</file>
    <file>demotaggedentry.h</file>
--- a/demos/gtk-demo/demo.ui
+++ b/demos/gtk-demo/demo.ui
@@ -95,9 +95,6 @@
    <property name="program-name" translatable="yes">Builder demo</property>
    <property name="logo-icon-name" translatable="yes">gtk3-demo</property>
    <property name="modal">True</property>
-    <accessibility>
-      <relation target="window1" type="subwindow-of"/>
-    </accessibility>
  </object>
  <object class="GtkWindow" id="window1">
    <property name="default-height">250</property>
@@ -113,11 +110,6 @@
        </child>
        <child>
          <object class="GtkBox" id="toolbar1">
-            <child internal-child="accessible">
-              <object class="AtkObject" id="a11y-toolbar">
-                <property name="AtkObject::accessible-name">The toolbar</property>
-              </object>
-            </child>
            <child>
              <object class="GtkButton">
                <property name="label" translatable="yes">New</property>
@@ -174,14 +166,6 @@
              <object class="GtkTreeView" id="treeview1">
                <property name="model">liststore1</property>
                <property name="tooltip-column">3</property>
-                <child internal-child="accessible">
-                  <object class="AtkObject" id="a11y-treeview">
-                    <property name="AtkObject::accessible-name">Name list</property>
-                    <property name="AtkObject::accessible-description">
-                                    A list of person with name, surname and age columns
-                                  </property>
-                  </object>
-                </child>
                <child>
                  <object class="GtkTreeViewColumn" id="column1">
                    <property name="title">Name</property>
--- a/demos/gtk-demo/demo2layout.c
+++ b/demos/gtk-demo/demo2layout.c
@@ -0,0 +1,204 @@
+#include "demo2layout.h"
+#include "four_point_transform.h"
+
+struct _Demo2Layout
+{
+  GtkLayoutManager parent_instance;
+
+  float position;
+  float offset;
+};
+
+struct _Demo2LayoutClass
+{
+  GtkLayoutManagerClass parent_class;
+};
+
+G_DEFINE_TYPE (Demo2Layout, demo2_layout, GTK_TYPE_LAYOUT_MANAGER)
+
+static void
+demo2_layout_measure (GtkLayoutManager *layout_manager,
+                      GtkWidget        *widget,
+                      GtkOrientation    orientation,
+                      int               for_size,
+                      int              *minimum,
+                      int              *natural,
+                      int              *minimum_baseline,
+                      int              *natural_baseline)
+{
+  GtkWidget *child;
+  int minimum_size = 0;
+  int natural_size = 0;
+
+  for (child = gtk_widget_get_first_child (widget);
+       child != NULL;
+       child = gtk_widget_get_next_sibling (child))
+    {
+      int child_min = 0, child_nat = 0;
+
+      if (!gtk_widget_should_layout (child))
+        continue;
+
+      gtk_widget_measure (child, orientation, -1,
+                          &child_min, &child_nat,
+                          NULL, NULL);
+      minimum_size = MAX (minimum_size, child_min);
+      natural_size = MAX (natural_size, child_nat);
+    }
+
+  *minimum = minimum_size;
+  *natural = 3 * natural_size;
+}
+
+
+#define RADIANS(angle) ((angle)*M_PI/180.0);
+
+/* Spherical coordinates */
+#define SX(r,t,p) ((r) * sin (t) * cos (p))
+#define SZ(r,t,p) ((r) * sin (t) * sin (p))
+#define SY(r,t,p) ((r) * cos (t))
+
+static double
+map_offset (double x)
+{
+  x = fmod (x, 180.0);
+  if (x < 0.0)
+    x += 180.0;
+
+  return x;
+}
+
+static void
+demo2_layout_allocate (GtkLayoutManager *layout_manager,
+                       GtkWidget        *widget,
+                       int               width,
+                       int               height,
+                       int               baseline)
+{
+  GtkWidget *child;
+  GtkRequisition child_req;
+  int i, j, k;
+  float x0, y0;
+  float w, h;
+  graphene_point3d_t p1, p2, p3, p4;
+  graphene_point3d_t q1, q2, q3, q4;
+  double t_1, t_2, p_1, p_2;
+  double r;
+  graphene_matrix_t m;
+  GskTransform *transform;
+  double position = DEMO2_LAYOUT (layout_manager)->position;
+  double offset = DEMO2_LAYOUT (layout_manager)->offset;
+
+  /* for simplicity, assume all children are the same size */
+  gtk_widget_get_preferred_size (gtk_widget_get_first_child (widget), &child_req, NULL);
+  w = child_req.width;
+  h = child_req.height;
+
+  r = 300;
+  x0 = y0 = 300;
+
+  for (child = gtk_widget_get_first_child (widget), i = 0;
+       child != NULL;
+       child = gtk_widget_get_next_sibling (child), i++)
+    {
+      j = i / 36;
+      k = i % 36;
+
+      gtk_widget_set_child_visible (child, FALSE);
+
+      graphene_point3d_init (&p1, w, h, 1.);
+      graphene_point3d_init (&p2, w, 0., 1.);
+      graphene_point3d_init (&p3, 0., 0., 1.);
+      graphene_point3d_init (&p4, 0., h, 1.);
+
+      t_1 = RADIANS (map_offset (offset + 10 * j));
+      t_2 = RADIANS (map_offset (offset + 10 * (j + 1)));
+      p_1 = RADIANS (position + 10 * k);
+      p_2 = RADIANS (position + 10 * (k + 1));
+
+      if (t_2 < t_1)
+        continue;
+
+      if (SZ (r, t_1, p_1) > 0 ||
+          SZ (r, t_2, p_1) > 0 ||
+          SZ (r, t_1, p_2) > 0 ||
+          SZ (r, t_2, p_2) > 0)
+        continue;
+
+      gtk_widget_set_child_visible (child, TRUE);
+
+      graphene_point3d_init (&q1, x0 + SX (r, t_1, p_1), y0 + SY (r, t_1, p_1), SZ (r, t_1, p_1));
+      graphene_point3d_init (&q2, x0 + SX (r, t_2, p_1), y0 + SY (r, t_2, p_1), SZ (r, t_2, p_1));
+      graphene_point3d_init (&q3, x0 + SX (r, t_2, p_2), y0 + SY (r, t_2, p_2), SZ (r, t_2, p_2));
+      graphene_point3d_init (&q4, x0 + SX (r, t_1, p_2), y0 + SY (r, t_1, p_2), SZ (r, t_1, p_2));
+
+      /* Get a matrix that moves p1 -> q1, p2 -> q2, ... */
+      perspective_3d (&p1, &p2, &p3, &p4,
+                      &q1, &q2, &q3, &q4,
+                      &m);
+
+      transform = gsk_transform_matrix (NULL, &m);
+
+      /* Since our matrix was built for transforming points with z = 1,
+       * prepend a translation to the z = 1 plane.
+       */
+      transform = gsk_transform_translate_3d (transform,
+                                              &GRAPHENE_POINT3D_INIT (0, 0, 1));
+
+      gtk_widget_allocate (child, w, h, -1, transform);
+    }
+}
+
+static GtkSizeRequestMode
+demo2_layout_get_request_mode (GtkLayoutManager *layout_manager,
+                               GtkWidget        *widget)
+{
+  return GTK_SIZE_REQUEST_CONSTANT_SIZE;
+}
+
+static void
+demo2_layout_class_init (Demo2LayoutClass *klass)
+{
+  GtkLayoutManagerClass *layout_class = GTK_LAYOUT_MANAGER_CLASS (klass);
+
+  layout_class->get_request_mode = demo2_layout_get_request_mode;
+  layout_class->measure = demo2_layout_measure;
+  layout_class->allocate = demo2_layout_allocate;
+}
+
+static void
+demo2_layout_init (Demo2Layout *self)
+{
+}
+
+GtkLayoutManager *
+demo2_layout_new (void)
+{
+  return g_object_new (DEMO2_TYPE_LAYOUT, NULL);
+}
+
+void
+demo2_layout_set_position (Demo2Layout *layout,
+                           float        position)
+{
+  layout->position = position;
+}
+
+float
+demo2_layout_get_position (Demo2Layout *layout)
+{
+  return layout->position;
+}
+
+void
+demo2_layout_set_offset (Demo2Layout *layout,
+                         float        offset)
+{
+  layout->offset = offset;
+}
+
+float
+demo2_layout_get_offset (Demo2Layout *layout)
+{
+  return layout->offset;
+}
--- a/demos/gtk-demo/demo2layout.h
+++ b/demos/gtk-demo/demo2layout.h
@@ -0,0 +1,16 @@
+#pragma once
+
+#include <gtk/gtk.h>
+
+#define DEMO2_TYPE_LAYOUT (demo2_layout_get_type ())
+
+G_DECLARE_FINAL_TYPE (Demo2Layout, demo2_layout, DEMO2, LAYOUT, GtkLayoutManager)
+
+GtkLayoutManager * demo2_layout_new          (void);
+
+void               demo2_layout_set_position (Demo2Layout *layout,
+                                              float        position);
+float              demo2_layout_get_position (Demo2Layout *layout);
+void               demo2_layout_set_offset   (Demo2Layout *layout,
+                                              float        offset);
+float              demo2_layout_get_offset   (Demo2Layout *layout);
--- a/demos/gtk-demo/demo2widget.c
+++ b/demos/gtk-demo/demo2widget.c
@@ -0,0 +1,172 @@
+#include "demo2widget.h"
+#include "demo2layout.h"
+
+struct _Demo2Widget
+{
+  GtkWidget parent_instance;
+
+  gint64 start_time;
+  gint64 end_time;
+  float start_position;
+  float end_position;
+  float start_offset;
+  float end_offset;
+  gboolean animating;
+};
+
+struct _Demo2WidgetClass
+{
+  GtkWidgetClass parent_class;
+};
+
+G_DEFINE_TYPE (Demo2Widget, demo2_widget, GTK_TYPE_WIDGET)
+
+static void
+demo2_widget_init (Demo2Widget *self)
+{
+  gtk_widget_set_focusable (GTK_WIDGET (self), TRUE);
+}
+
+static void
+demo2_widget_dispose (GObject *object)
+{
+  GtkWidget *child;
+
+  while ((child = gtk_widget_get_first_child (GTK_WIDGET (object))))
+    gtk_widget_unparent (child);
+
+  G_OBJECT_CLASS (demo2_widget_parent_class)->dispose (object);
+}
+
+/* From clutter-easing.c, based on Robert Penner's
+ * infamous easing equations, MIT license.
+ */
+static double
+ease_out_cubic (double t)
+{
+  double p = t - 1;
+
+  return p * p * p + 1;
+}
+
+static gboolean
+update_position (GtkWidget     *widget,
+                 GdkFrameClock *clock,
+                 gpointer       data)
+{
+  Demo2Widget *self = DEMO2_WIDGET (widget);
+  Demo2Layout *layout = DEMO2_LAYOUT (gtk_widget_get_layout_manager (widget));
+  gint64 now;
+  double t;
+
+  now = gdk_frame_clock_get_frame_time (clock);
+
+  if (now >= self->end_time)
+    {
+      self->animating = FALSE;
+
+      return G_SOURCE_REMOVE;
+    }
+
+  t = (now - self->start_time) / (double) (self->end_time - self->start_time);
+
+  t = ease_out_cubic (t);
+
+  demo2_layout_set_position (layout, self->start_position + t * (self->end_position - self->start_position));
+  demo2_layout_set_offset (layout, self->start_offset + t * (self->end_offset - self->start_offset));
+  gtk_widget_queue_allocate (widget);
+
+  return G_SOURCE_CONTINUE;
+}
+
+static void
+rotate_sphere (GtkWidget  *widget,
+               const char *action,
+               GVariant   *parameters)
+{
+  Demo2Widget *self = DEMO2_WIDGET (widget);
+  Demo2Layout *layout = DEMO2_LAYOUT (gtk_widget_get_layout_manager (widget));
+  GtkOrientation orientation;
+  int direction;
+
+  g_variant_get (parameters, "(ii)", &orientation, &direction);
+
+  self->end_position = self->start_position = demo2_layout_get_position (layout);
+  self->end_offset = self->start_offset = demo2_layout_get_offset (layout);
+  if (orientation == GTK_ORIENTATION_HORIZONTAL)
+    self->end_position += 10 * direction;
+  else
+    self->end_offset += 10 * direction;
+  self->start_time = g_get_monotonic_time ();
+  self->end_time = self->start_time + 0.5 * G_TIME_SPAN_SECOND;
+
+  if (!self->animating)
+    {
+      gtk_widget_add_tick_callback (widget, update_position, NULL, NULL);
+      self->animating = TRUE;
+    }
+}
+
+static void
+demo2_widget_snapshot (GtkWidget   *widget,
+                       GtkSnapshot *snapshot)
+{
+  GtkWidget *child;
+
+  for (child = gtk_widget_get_first_child (widget);
+       child != NULL;
+       child = gtk_widget_get_next_sibling (child))
+    {
+      /* our layout manager sets this for children that are out of view */
+      if (!gtk_widget_get_child_visible (child))
+        continue;
+
+      gtk_widget_snapshot_child (widget, child, snapshot);
+    }
+}
+
+static void
+demo2_widget_class_init (Demo2WidgetClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
+
+  object_class->dispose = demo2_widget_dispose;
+
+  widget_class->snapshot = demo2_widget_snapshot;
+
+  gtk_widget_class_install_action (widget_class, "rotate", "(ii)", rotate_sphere);
+
+  gtk_widget_class_add_binding_action (widget_class,
+                                       GDK_KEY_Left, 0,
+                                       "rotate",
+                                       "(ii)", GTK_ORIENTATION_HORIZONTAL, -1);
+  gtk_widget_class_add_binding_action (widget_class,
+                                       GDK_KEY_Right, 0,
+                                       "rotate",
+                                       "(ii)", GTK_ORIENTATION_HORIZONTAL, 1);
+  gtk_widget_class_add_binding_action (widget_class,
+                                       GDK_KEY_Up, 0,
+                                       "rotate",
+                                       "(ii)", GTK_ORIENTATION_VERTICAL, 1);
+  gtk_widget_class_add_binding_action (widget_class,
+                                       GDK_KEY_Down, 0,
+                                       "rotate",
+                                       "(ii)", GTK_ORIENTATION_VERTICAL, -1);
+
+  /* here is where we use our custom layout manager */
+  gtk_widget_class_set_layout_manager_type (widget_class, DEMO2_TYPE_LAYOUT);
+}
+
+GtkWidget *
+demo2_widget_new (void)
+{
+  return g_object_new (DEMO2_TYPE_WIDGET, NULL);
+}
+
+void
+demo2_widget_add_child (Demo2Widget *self,
+                        GtkWidget   *child)
+{
+  gtk_widget_set_parent (child, GTK_WIDGET (self));
+}
--- a/demos/gtk-demo/demo2widget.h
+++ b/demos/gtk-demo/demo2widget.h
@@ -0,0 +1,11 @@
+#pragma once
+
+#include <gtk/gtk.h>
+
+#define DEMO2_TYPE_WIDGET (demo2_widget_get_type ())
+G_DECLARE_FINAL_TYPE (Demo2Widget, demo2_widget, DEMO2, WIDGET, GtkWidget)
+
+GtkWidget * demo2_widget_new       (void);
+
+void        demo2_widget_add_child (Demo2Widget *self,
+                                    GtkWidget  *child);
--- a/demos/gtk-demo/demochild.c
+++ b/demos/gtk-demo/demochild.c
@@ -0,0 +1,72 @@
+#include "demochild.h"
+
+/* This is a trivial child widget just for demo purposes.
+ * It draws a 32x32 square in fixed color.
+ */
+
+struct _DemoChild
+{
+  GtkWidget parent_instance;
+  GdkRGBA color;
+};
+
+struct _DemoChildClass
+{
+  GtkWidgetClass parent_class;
+};
+
+G_DEFINE_TYPE (DemoChild, demo_child, GTK_TYPE_WIDGET)
+
+static void
+demo_child_init (DemoChild *self)
+{
+}
+
+static void
+demo_child_snapshot (GtkWidget   *widget,
+                     GtkSnapshot *snapshot)
+{
+  DemoChild *self = DEMO_CHILD (widget);
+  int width, height;
+
+  width = gtk_widget_get_width (widget);
+  height = gtk_widget_get_height (widget);
+
+  gtk_snapshot_append_color (snapshot, &self->color,
+                             &GRAPHENE_RECT_INIT(0, 0, width, height));
+}
+
+static void
+demo_child_measure (GtkWidget        *widget,
+                    GtkOrientation    orientation,
+                    int               for_size,
+                    int              *minimum,
+                    int              *natural,
+                    int              *minimum_baseline,
+                    int              *natural_baseline)
+{
+  *minimum = *natural = 32;
+}
+
+static void
+demo_child_class_init (DemoChildClass *class)
+{
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
+
+  widget_class->snapshot = demo_child_snapshot;
+  widget_class->measure = demo_child_measure;
+}
+
+GtkWidget *
+demo_child_new (const char *color)
+{
+  DemoChild *self;
+
+  self = g_object_new (DEMO_TYPE_CHILD,
+                       "tooltip-text", color,
+                       NULL);
+
+  gdk_rgba_parse (&self->color, color);
+
+  return GTK_WIDGET (self);
+}
--- a/demos/gtk-demo/demochild.h
+++ b/demos/gtk-demo/demochild.h
@@ -0,0 +1,8 @@
+#pragma once
+
+#include <gtk/gtk.h>
+
+#define DEMO_TYPE_CHILD (demo_child_get_type ())
+G_DECLARE_FINAL_TYPE (DemoChild, demo_child, DEMO, CHILD, GtkWidget)
+
+GtkWidget * demo_child_new (const char *color);
--- a/demos/gtk-demo/demoimage.c
+++ b/demos/gtk-demo/demoimage.c
@@ -17,7 +17,7 @@ G_DEFINE_TYPE(DemoImage, demo_image, GTK_TYPE_WIDGET)
 static GdkPaintable *
 get_image_paintable (GtkImage *image)
 {
-  const gchar *icon_name;
+  const char *icon_name;
  GtkIconTheme *icon_theme;
  GtkIconPaintable *icon;

--- a/demos/gtk-demo/demolayout.c
+++ b/demos/gtk-demo/demolayout.c
@@ -0,0 +1,189 @@
+#include "demolayout.h"
+
+struct _DemoLayout
+{
+  GtkLayoutManager parent_instance;
+
+  float position;
+  int pos[16];
+};
+
+struct _DemoLayoutClass
+{
+  GtkLayoutManagerClass parent_class;
+};
+
+G_DEFINE_TYPE (DemoLayout, demo_layout, GTK_TYPE_LAYOUT_MANAGER)
+
+static void
+demo_layout_measure (GtkLayoutManager *layout_manager,
+                     GtkWidget        *widget,
+                     GtkOrientation    orientation,
+                     int               for_size,
+                     int              *minimum,
+                     int              *natural,
+                     int              *minimum_baseline,
+                     int              *natural_baseline)
+{
+  GtkWidget *child;
+  int minimum_size = 0;
+  int natural_size = 0;
+
+  for (child = gtk_widget_get_first_child (widget);
+       child != NULL;
+       child = gtk_widget_get_next_sibling (child))
+    {
+      int child_min = 0, child_nat = 0;
+
+      if (!gtk_widget_should_layout (child))
+        continue;
+
+      gtk_widget_measure (child, orientation, -1,
+                          &child_min, &child_nat,
+                          NULL, NULL);
+      minimum_size = MAX (minimum_size, child_min);
+      natural_size = MAX (natural_size, child_nat);
+    }
+
+  /* A back-of-a-napkin calculation to reserve enough
+   * space for arranging 16 children in a circle.
+   */
+  *minimum = 16 * minimum_size / G_PI + minimum_size;
+  *natural = 16 * natural_size / G_PI + natural_size;
+}
+
+static void
+demo_layout_allocate (GtkLayoutManager *layout_manager,
+                      GtkWidget        *widget,
+                      int               width,
+                      int               height,
+                      int               baseline)
+{
+  DemoLayout *self = DEMO_LAYOUT (layout_manager);
+  GtkWidget *child;
+  int i;
+  int child_width = 0;
+  int child_height = 0;
+  int x0, y0;
+  float r;
+  float t;
+
+  t = self->position;
+
+  for (child = gtk_widget_get_first_child (widget);
+       child != NULL;
+       child = gtk_widget_get_next_sibling (child))
+    {
+      GtkRequisition child_req;
+
+      if (!gtk_widget_should_layout (child))
+        continue;
+
+      gtk_widget_get_preferred_size (child, &child_req, NULL);
+
+      child_width = MAX (child_width, child_req.width);
+      child_height = MAX (child_height, child_req.height);
+    }
+
+  /* the center of our layout */
+  x0 = (width / 2);
+  y0 = (height / 2);
+
+  /* the radius for our circle of children */
+  r = 8 * child_width / G_PI;
+
+  for (child = gtk_widget_get_first_child (widget), i = 0;
+       child != NULL;
+       child = gtk_widget_get_next_sibling (child), i++)
+    {
+      GtkRequisition child_req;
+      float a = self->pos[i] * G_PI / 8;
+      int gx, gy;
+      int cx, cy;
+      int x, y;
+
+      if (!gtk_widget_should_layout (child))
+        continue;
+
+      gtk_widget_get_preferred_size (child, &child_req, NULL);
+
+      /* The grid position of child. */
+      gx = x0 + (i % 4 - 2) * child_width;
+      gy = y0 + (i / 4 - 2) * child_height;
+
+      /* The circle position of child. Note that we
+       * are adjusting the position by half the child size
+       * to place the center of child on a centered circle.
+       * This assumes that the children don't use align flags
+       * or uneven margins that would shift the center.
+       */
+      cx = x0 + sin (a) * r - child_req.width / 2;
+      cy = y0 + cos (a) * r - child_req.height / 2;
+
+      /* we interpolate between the two layouts according to
+       * the position value that has been set on the layout.
+       */
+      x = t * cx + (1 - t) * gx;
+      y = t * cy + (1 - t) * gy;
+
+      gtk_widget_size_allocate (child,
+                                &(const GtkAllocation){ x, y, child_width, child_height},
+                                -1);
+    }
+}
+
+static GtkSizeRequestMode
+demo_layout_get_request_mode (GtkLayoutManager *layout_manager,
+                              GtkWidget        *widget)
+{
+  return GTK_SIZE_REQUEST_CONSTANT_SIZE;
+}
+
+static void
+demo_layout_class_init (DemoLayoutClass *klass)
+{
+  GtkLayoutManagerClass *layout_class = GTK_LAYOUT_MANAGER_CLASS (klass);
+
+  layout_class->get_request_mode = demo_layout_get_request_mode;
+  layout_class->measure = demo_layout_measure;
+  layout_class->allocate = demo_layout_allocate;
+}
+
+static void
+demo_layout_init (DemoLayout *self)
+{
+  int i;
+
+  for (i = 0; i < 16; i++)
+    self->pos[i] = i;
+}
+
+GtkLayoutManager *
+demo_layout_new (void)
+{
+  return g_object_new (DEMO_TYPE_LAYOUT, NULL);
+}
+
+void
+demo_layout_set_position (DemoLayout *layout,
+                          float       position)
+{
+  layout->position = position;
+}
+
+/* Shuffle the circle positions of the children.
+ * Should be called when we are in the grid layout.
+ */
+void
+demo_layout_shuffle (DemoLayout *layout)
+{
+  int i, j, tmp;
+
+  for (i = 0; i < 16; i++)
+    {
+      j = g_random_int_range (0, i + 1);
+      tmp = layout->pos[i];
+      layout->pos[i] = layout->pos[j];
+      layout->pos[j] = tmp;
+    }
+}
--- a/demos/gtk-demo/demolayout.h
+++ b/demos/gtk-demo/demolayout.h
@@ -0,0 +1,13 @@
+#pragma once
+
+#include <gtk/gtk.h>
+
+#define DEMO_TYPE_LAYOUT (demo_layout_get_type ())
+
+G_DECLARE_FINAL_TYPE (DemoLayout, demo_layout, DEMO, LAYOUT, GtkLayoutManager)
+
+GtkLayoutManager * demo_layout_new          (void);
+
+void               demo_layout_set_position (DemoLayout *layout,
+                                             float       position);
+void               demo_layout_shuffle      (DemoLayout *layout);
--- a/demos/gtk-demo/demotaggedentry.c
+++ b/demos/gtk-demo/demotaggedentry.c
@@ -23,14 +23,12 @@
 #include "demotaggedentry.h"

 #include <gtk/gtk.h>
-#include <gtk/gtk-a11y.h>

 struct _DemoTaggedEntry
 {
  GtkWidget parent_instance;

-  GtkWidget *box;
-  GtkWidget *entry;
+  GtkWidget *text;
 };

 struct _DemoTaggedEntryClass
@@ -46,15 +44,10 @@ G_DEFINE_TYPE_WITH_CODE (DemoTaggedEntry, demo_tagged_entry, GTK_TYPE_WIDGET,
 static void
 demo_tagged_entry_init (DemoTaggedEntry *entry)
 {
-  entry->box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
-  gtk_widget_set_parent (entry->box, GTK_WIDGET (entry));
-
-  entry->entry = gtk_text_new ();
-  gtk_widget_set_hexpand (entry->entry, TRUE);
-  gtk_widget_set_vexpand (entry->entry, TRUE);
-  gtk_widget_set_hexpand (entry->box, FALSE);
-  gtk_widget_set_vexpand (entry->box, FALSE);
-  gtk_box_append (GTK_BOX (entry->box), entry->entry);
+  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));
 }

@@ -62,12 +55,15 @@ static void
 demo_tagged_entry_dispose (GObject *object)
 {
  DemoTaggedEntry *entry = DEMO_TAGGED_ENTRY (object);
+  GtkWidget *child;

-  if (entry->entry)
+  if (entry->text)
    gtk_editable_finish_delegate (GTK_EDITABLE (entry));

-  g_clear_pointer (&entry->entry, gtk_widget_unparent);
-  g_clear_pointer (&entry->box, gtk_widget_unparent);
+  while ((child = gtk_widget_get_first_child (GTK_WIDGET (entry))))
+    gtk_widget_unparent (child);
+
+  entry->text = NULL;

  G_OBJECT_CLASS (demo_tagged_entry_parent_class)->dispose (object);
 }
@@ -101,7 +97,7 @@ demo_tagged_entry_grab_focus (GtkWidget *widget)
 {
  DemoTaggedEntry *entry = DEMO_TAGGED_ENTRY (widget);

-  return gtk_widget_grab_focus (entry->entry);
+  return gtk_widget_grab_focus (entry->text);
 }

 static void
@@ -118,15 +114,14 @@ demo_tagged_entry_class_init (DemoTaggedEntryClass *klass)

  gtk_editable_install_properties (object_class, 1);

-  gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BIN_LAYOUT);
-  gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_ENTRY_ACCESSIBLE);
+  gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BOX_LAYOUT);
  gtk_widget_class_set_css_name (widget_class, "entry");
 }

 static GtkEditable *
 demo_tagged_entry_get_delegate (GtkEditable *editable)
 {
-  return GTK_EDITABLE (DEMO_TAGGED_ENTRY (editable)->entry);
+  return GTK_EDITABLE (DEMO_TAGGED_ENTRY (editable)->text);
 }

 static void
@@ -147,7 +142,7 @@ demo_tagged_entry_add_tag (DemoTaggedEntry *entry,
 {
  g_return_if_fail (DEMO_IS_TAGGED_ENTRY (entry));

-  gtk_box_append (GTK_BOX (entry->box), tag);
+  gtk_widget_set_parent (tag, GTK_WIDGET (entry));
 }

 void
@@ -157,10 +152,7 @@ demo_tagged_entry_insert_tag_after (DemoTaggedEntry *entry,
 {
  g_return_if_fail (DEMO_IS_TAGGED_ENTRY (entry));

-  if (sibling == NULL)
-    gtk_box_append (GTK_BOX (entry->box), tag);
-  else
-    gtk_box_insert_child_after (GTK_BOX (entry->box), tag, sibling);
+  gtk_widget_insert_after (tag, GTK_WIDGET (entry), sibling);
 }

 void
@@ -169,7 +161,7 @@ demo_tagged_entry_remove_tag (DemoTaggedEntry *entry,
 {
  g_return_if_fail (DEMO_IS_TAGGED_ENTRY (entry));

-  gtk_box_remove (GTK_BOX (entry->box), tag);
+  gtk_widget_unparent (tag);
 }

 struct _DemoTaggedEntryTag
--- a/demos/gtk-demo/demowidget.c
+++ b/demos/gtk-demo/demowidget.c
@@ -0,0 +1,121 @@
+#include "demowidget.h"
+#include "demolayout.h"
+
+/* parent widget */
+
+struct _DemoWidget
+{
+  GtkWidget parent_instance;
+
+  gboolean backward; /* whether we go 0 -> 1 or 1 -> 0 */
+  gint64 start_time; /* time the transition started */
+  guint tick_id;     /* our tick cb */
+};
+
+struct _DemoWidgetClass
+{
+  GtkWidgetClass parent_class;
+};
+
+G_DEFINE_TYPE (DemoWidget, demo_widget, GTK_TYPE_WIDGET)
+
+/* The widget is controlling the transition by calling
+ * demo_layout_set_position() in a tick callback.
+ *
+ * We take half a second to go from one layout to the other.
+ */
+
+#define DURATION (0.5 * G_TIME_SPAN_SECOND)
+
+static gboolean
+transition (GtkWidget     *widget,
+            GdkFrameClock *frame_clock,
+            gpointer       data)
+{
+  DemoWidget *self = DEMO_WIDGET (widget);
+  DemoLayout *demo_layout = DEMO_LAYOUT (gtk_widget_get_layout_manager (widget));
+  gint64 now = g_get_monotonic_time ();
+
+  gtk_widget_queue_allocate (widget);
+
+  if (self->backward)
+    demo_layout_set_position (demo_layout, 1.0 - (now - self->start_time) / DURATION);
+  else
+    demo_layout_set_position (demo_layout, (now - self->start_time) / DURATION);
+
+  if (now - self->start_time >= DURATION)
+    {
+      self->backward = !self->backward;
+      demo_layout_set_position (demo_layout, self->backward ? 1.0 : 0.0);
+      /* keep things interesting by shuffling the positions */
+      if (!self->backward)
+        demo_layout_shuffle (demo_layout);
+      self->tick_id = 0;
+
+      return G_SOURCE_REMOVE;
+    }
+
+  return G_SOURCE_CONTINUE;
+}
+
+static void
+clicked (GtkGestureClick *gesture,
+         guint            n_press,
+         double           x,
+         double           y,
+         gpointer         data)
+{
+  DemoWidget *self = data;
+
+  if (self->tick_id != 0)
+    return;
+
+  self->start_time = g_get_monotonic_time ();
+  self->tick_id = gtk_widget_add_tick_callback (GTK_WIDGET (self), transition, NULL, NULL);
+}
+
+static void
+demo_widget_init (DemoWidget *self)
+{
+  GtkGesture *gesture;
+
+  gesture = gtk_gesture_click_new ();
+  g_signal_connect (gesture, "pressed", G_CALLBACK (clicked), self);
+  gtk_widget_add_controller (GTK_WIDGET (self), GTK_EVENT_CONTROLLER (gesture));
+}
+
+static void
+demo_widget_dispose (GObject *object)
+{
+  GtkWidget *child;
+
+  while ((child = gtk_widget_get_first_child (GTK_WIDGET (object))))
+    gtk_widget_unparent (child);
+
+  G_OBJECT_CLASS (demo_widget_parent_class)->dispose (object);
+}
+
+static void
+demo_widget_class_init (DemoWidgetClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
+
+  object_class->dispose = demo_widget_dispose;
+
+  /* here is where we use our custom layout manager */
+  gtk_widget_class_set_layout_manager_type (widget_class, DEMO_TYPE_LAYOUT);
+}
+
+GtkWidget *
+demo_widget_new (void)
+{
+  return g_object_new (DEMO_TYPE_WIDGET, NULL);
+}
+
+void
+demo_widget_add_child (DemoWidget *self,
+                       GtkWidget  *child)
+{
+  gtk_widget_set_parent (child, GTK_WIDGET (self));
+}
--- a/demos/gtk-demo/demowidget.h
+++ b/demos/gtk-demo/demowidget.h
@@ -0,0 +1,11 @@
+#pragma once
+
+#include <gtk/gtk.h>
+
+#define DEMO_TYPE_WIDGET (demo_widget_get_type ())
+G_DECLARE_FINAL_TYPE (DemoWidget, demo_widget, DEMO, WIDGET, GtkWidget)
+
+GtkWidget * demo_widget_new       (void);
+
+void        demo_widget_add_child (DemoWidget *self,
+                                   GtkWidget  *child);
--- a/demos/gtk-demo/dialog.c
+++ b/demos/gtk-demo/dialog.c
@@ -16,7 +16,7 @@ message_dialog_clicked (GtkButton *button,
                        gpointer   user_data)
 {
  GtkWidget *dialog;
-  static gint i = 1;
+  static int i = 1;

  dialog = gtk_message_dialog_new (GTK_WINDOW (window),
                                   GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
--- a/demos/gtk-demo/dnd.c
+++ b/demos/gtk-demo/dnd.c
@@ -153,6 +153,30 @@ click_done (GtkGesture *gesture)
    gtk_widget_insert_after (item, canvas, last_child);
 }

+static gboolean
+theme_is_dark (void)
+{
+  GtkSettings *settings;
+  char *theme;
+  gboolean prefer_dark;
+  gboolean dark;
+
+  settings = gtk_settings_get_default ();
+  g_object_get (settings,
+                "gtk-theme-name", &theme,
+                "gtk-application-prefer-dark-theme", &prefer_dark,
+                NULL);
+
+  if ((strcmp (theme, "Adwaita") == 0 && prefer_dark) || strcmp (theme, "HighContrastInverse") == 0)
+    dark = TRUE;
+  else
+    dark = FALSE;
+
+  g_free (theme);
+
+  return dark;
+}
+
 static void
 canvas_item_init (CanvasItem *item)
 {
@@ -180,7 +204,11 @@ canvas_item_init (CanvasItem *item)
  gtk_widget_set_name (item->label, id);
  g_free (id);

-  gdk_rgba_parse (&rgba, "yellow");
+  if (theme_is_dark ())
+    gdk_rgba_parse (&rgba, "blue");
+  else
+    gdk_rgba_parse (&rgba, "yellow");
+
  set_color (item, &rgba);

  item->angle = 0;
@@ -538,7 +566,6 @@ canvas_new (void)
  canvas = gtk_fixed_new ();
  gtk_widget_set_hexpand (canvas, TRUE);
  gtk_widget_set_vexpand (canvas, TRUE);
-  gtk_widget_add_css_class (canvas, "frame");

  source = gtk_drag_source_new ();
  gtk_drag_source_set_actions (source, GDK_ACTION_MOVE);
@@ -597,6 +624,83 @@ css_button_new (const char *class)
  return button;
 }

+typedef struct
+{
+  GtkWidget parent_instance;
+  GdkRGBA color;
+} ColorSwatch;
+
+typedef struct
+{
+  GtkWidgetClass parent_class;
+} ColorSwatchClass;
+
+G_DEFINE_TYPE (ColorSwatch, color_swatch, GTK_TYPE_WIDGET)
+
+static GdkContentProvider *
+color_swatch_drag_prepare (GtkDragSource  *source,
+                           double          x,
+                           double          y,
+                           ColorSwatch    *swatch)
+{
+  return gdk_content_provider_new_typed (GDK_TYPE_RGBA, &swatch->color);
+}
+
+static void
+color_swatch_init (ColorSwatch *swatch)
+{
+  GtkDragSource *source = gtk_drag_source_new ();
+  g_signal_connect (source, "prepare", G_CALLBACK (color_swatch_drag_prepare), swatch);
+  gtk_widget_add_controller (GTK_WIDGET (swatch), GTK_EVENT_CONTROLLER (source));
+}
+
+static void
+color_swatch_snapshot (GtkWidget   *widget,
+                       GtkSnapshot *snapshot)
+{
+  ColorSwatch *swatch = (ColorSwatch *)widget;
+  float w = gtk_widget_get_width (widget);
+  float h = gtk_widget_get_height (widget);
+
+  gtk_snapshot_append_color (snapshot, &swatch->color,
+                             &GRAPHENE_RECT_INIT(0, 0, w, h));
+}
+
+void
+color_swatch_measure (GtkWidget      *widget,
+                      GtkOrientation  orientation,
+                      int             for_size,
+                      int            *minimum_size,
+                      int            *natural_size,
+                      int            *minimum_baseline,
+                      int            *natural_baseline)
+{
+  if (orientation == GTK_ORIENTATION_HORIZONTAL)
+    *minimum_size = *natural_size = 48;
+  else
+    *minimum_size = *natural_size = 32;
+}
+
+static void
+color_swatch_class_init (ColorSwatchClass *class)
+{
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
+
+  widget_class->snapshot = color_swatch_snapshot;
+  widget_class->measure = color_swatch_measure;
+  gtk_widget_class_set_css_name (widget_class, "colorswatch");
+}
+
+static GtkWidget *
+color_swatch_new (const char *color)
+{
+  ColorSwatch *swatch = g_object_new (color_swatch_get_type (), NULL);
+
+  gdk_rgba_parse (&swatch->color, color);
+
+  return GTK_WIDGET (swatch);
+}
+
 static GtkWidget *window = NULL;

 GtkWidget *
@@ -659,6 +763,8 @@ do_dnd (GtkWidget *do_widget)
          y += 100;
        }

+      gtk_box_append (GTK_BOX (box), gtk_separator_new (GTK_ORIENTATION_HORIZONTAL));
+
      sw = gtk_scrolled_window_new ();
      gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
                                      GTK_POLICY_AUTOMATIC,
@@ -670,18 +776,7 @@ do_dnd (GtkWidget *do_widget)
      gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), box3);

      for (i = 0; colors[i]; i++)
-        {
-          GdkRGBA rgba;
-          GtkWidget *swatch;
-
-          gdk_rgba_parse (&rgba, colors[i]);
-
-          swatch = g_object_new (g_type_from_name ("GtkColorSwatch"),
-                                 "rgba", &rgba,
-                                 "selectable", FALSE,
-                                 NULL);
-          gtk_box_append (GTK_BOX (box3), swatch);
-        }
+        gtk_box_append (GTK_BOX (box3), color_swatch_new (colors[i]));

      gtk_box_append (GTK_BOX (box3), css_button_new ("rainbow1"));
      gtk_box_append (GTK_BOX (box3), css_button_new ("rainbow2"));
--- a/demos/gtk-demo/drawingarea.c
+++ b/demos/gtk-demo/drawingarea.c
@@ -64,8 +64,8 @@ scribble_draw (GtkDrawingArea *da,
 /* Draw a rectangle on the screen */
 static void
 draw_brush (GtkWidget *widget,
-            gdouble    x,
-            gdouble    y)
+            double     x,
+            double     y)
 {
  GdkRectangle update_rect;
  cairo_t *cr;
--- a/demos/gtk-demo/dropdown.c
+++ b/demos/gtk-demo/dropdown.c
@@ -92,7 +92,7 @@ strings_setup_item_full (GtkSignalListItemFactory *factory,
  gtk_label_set_xalign (GTK_LABEL (title), 0.0);
  description = gtk_label_new ("");
  gtk_label_set_xalign (GTK_LABEL (description), 0.0);
-  gtk_style_context_add_class (gtk_widget_get_style_context (description), "dim-label");
+  gtk_widget_add_css_class (description, "dim-label");

  box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
  box2 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
@@ -254,7 +254,7 @@ do_dropdown (GtkWidget *do_widget)
      gtk_widget_set_margin_bottom (box, 10);
      gtk_window_set_child (GTK_WINDOW (window), box);

-      button = gtk_drop_down_new ();
+      button = gtk_drop_down_new (NULL, NULL);

      model = G_LIST_MODEL (pango_cairo_font_map_get_default ());
      gtk_drop_down_set_model (GTK_DROP_DOWN (button), model);
--- a/demos/gtk-demo/editable_cells.c
+++ b/demos/gtk-demo/editable_cells.c
@@ -16,9 +16,9 @@

 typedef struct
 {
-  gint   number;
-  gchar *product;
-  gint   yummy;
+  int    number;
+  char *product;
+  int    yummy;
 }
 Item;

@@ -74,7 +74,7 @@ add_items (void)
 static GtkTreeModel *
 create_items_model (void)
 {
-  gint i = 0;
+  int i = 0;
  GtkListStore *model;
  GtkTreeIter iter;

@@ -109,7 +109,7 @@ static GtkTreeModel *
 create_numbers_model (void)
 {
 #define N_NUMBERS 10
-  gint i = 0;
+  int i = 0;
  GtkListStore *model;
  GtkTreeIter iter;

@@ -192,7 +192,7 @@ remove_item (GtkWidget *widget, gpointer data)

  if (gtk_tree_selection_get_selected (selection, NULL, &iter))
    {
-      gint i;
+      int i;
      GtkTreePath *path;

      path = gtk_tree_model_get_path (model, &iter);
@@ -211,7 +211,7 @@ separator_row (GtkTreeModel *model,
               gpointer      data)
 {
  GtkTreePath *path;
-  gint idx;
+  int idx;

  path = gtk_tree_model_get_path (model, iter);
  idx = gtk_tree_path_get_indices (path)[0];
@@ -224,7 +224,7 @@ separator_row (GtkTreeModel *model,
 static void
 editing_started (GtkCellRenderer *cell,
                 GtkCellEditable *editable,
-                 const gchar     *path,
+                 const char      *path,
                 gpointer         data)
 {
  gtk_combo_box_set_row_separator_func (GTK_COMBO_BOX (editable),
@@ -233,15 +233,15 @@ editing_started (GtkCellRenderer *cell,

 static void
 cell_edited (GtkCellRendererText *cell,
-             const gchar         *path_string,
-             const gchar         *new_text,
+             const char          *path_string,
+             const char          *new_text,
             gpointer             data)
 {
  GtkTreeModel *model = (GtkTreeModel *)data;
  GtkTreePath *path = gtk_tree_path_new_from_string (path_string);
  GtkTreeIter iter;

-  gint column = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (cell), "column"));
+  int column = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (cell), "column"));

  gtk_tree_model_get_iter (model, &iter, path);

@@ -249,7 +249,7 @@ cell_edited (GtkCellRendererText *cell,
    {
    case COLUMN_ITEM_NUMBER:
      {
-        gint i;
+        int i;

        i = gtk_tree_path_get_indices (path)[0];
        g_array_index (articles, Item, i).number = atoi (new_text);
@@ -261,8 +261,8 @@ cell_edited (GtkCellRendererText *cell,

    case COLUMN_ITEM_PRODUCT:
      {
-        gint i;
-        gchar *old_text;
+        int i;
+        char *old_text;

        gtk_tree_model_get (model, &iter, column, &old_text, -1);
        g_free (old_text);
--- a/demos/gtk-demo/expander.c
+++ b/demos/gtk-demo/expander.c
@@ -13,7 +13,7 @@
 static GtkWidget *window = NULL;

 static void
-response_cb (GtkDialog *dialog, gint response_id)
+response_cb (GtkDialog *dialog, int response_id)
 {
  gtk_window_destroy (GTK_WINDOW (window));
  window = NULL;
@@ -35,6 +35,10 @@ do_expander (GtkWidget *do_widget)
  GtkWidget *sw;
  GtkWidget *tv;
  GtkTextBuffer *buffer;
+  GtkTextIter start;
+  GtkTextIter end;
+  GtkTextTag *tag;
+  GdkPaintable *paintable;

  if (!window)
    {
@@ -64,12 +68,25 @@ do_expander (GtkWidget *do_widget)
                                      GTK_POLICY_NEVER,
                                      GTK_POLICY_AUTOMATIC);
      gtk_scrolled_window_set_propagate_natural_height (GTK_SCROLLED_WINDOW (sw), TRUE);
+      gtk_widget_set_vexpand (sw, TRUE);

      tv = gtk_text_view_new ();
+
+      g_object_set (tv,
+                    "left-margin", 10,
+                    "right-margin", 10,
+                    "top-margin", 10,
+                    "bottom-margin", 10,
+                    NULL);
+
      buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (tv));
      gtk_text_view_set_editable (GTK_TEXT_VIEW (tv), FALSE);
+      gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (tv), FALSE);
      gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (tv), GTK_WRAP_WORD);
-      gtk_text_buffer_set_text (GTK_TEXT_BUFFER (buffer),
+      gtk_text_view_set_pixels_above_lines (GTK_TEXT_VIEW (tv), 2);
+      gtk_text_view_set_pixels_below_lines (GTK_TEXT_VIEW (tv), 2);
+
+      gtk_text_buffer_set_text (buffer,
                                "Finally, the full story with all details. "
                                "And all the inside information, including "
                                "error codes, etc etc. Pages of information, "
@@ -77,7 +94,22 @@ do_expander (GtkWidget *do_widget)
                                "or even resize the window - it works !\n"
                                "A second paragraph will contain even more "
                                "innuendo, just to make you scroll down or "
-                                "resize the window. Do it already !", -1);
+                                "resize the window.\n"
+                                "Do it already!\n", -1);
+
+      gtk_text_buffer_get_end_iter (buffer, &start);
+      paintable = GDK_PAINTABLE (gdk_texture_new_from_resource ("/cursors/images/gtk_logo_cursor.png"));
+      gtk_text_buffer_insert_paintable (buffer, &start, paintable);
+      g_object_unref (paintable);
+      gtk_text_iter_backward_char (&start);
+
+      gtk_text_buffer_get_end_iter (buffer, &end);
+      tag = gtk_text_buffer_create_tag (buffer, NULL,
+                                        "pixels-above-lines", 200,
+                                        "justification", GTK_JUSTIFY_RIGHT,
+                                        NULL);
+      gtk_text_buffer_apply_tag (buffer, tag, &start, &end);
+
      gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), tv);
      gtk_expander_set_child (GTK_EXPANDER (expander), sw);
      gtk_box_append (GTK_BOX (area), expander);
--- a/demos/gtk-demo/filtermodel.c
+++ b/demos/gtk-demo/filtermodel.c
@@ -22,8 +22,8 @@ format_number (GtkTreeViewColumn *col,
               GtkTreeIter       *iter,
               gpointer           data)
 {
-  gint num;
-  gchar *text;
+  int num;
+  char *text;

  gtk_tree_model_get (model, iter, GPOINTER_TO_INT (data), &num, -1);
  text = g_strdup_printf ("%d", num);
@@ -35,11 +35,11 @@ static void
 filter_modify_func (GtkTreeModel *model,
                    GtkTreeIter  *iter,
                    GValue       *value,
-                    gint          column,
+                    int           column,
                    gpointer      data)
 {
  GtkTreeModelFilter *filter_model = GTK_TREE_MODEL_FILTER (model);
-  gint width, height;
+  int width, height;
  GtkTreeModel *child_model;
  GtkTreeIter child_iter;

@@ -75,7 +75,7 @@ visible_func (GtkTreeModel *model,
              GtkTreeIter  *iter,
              gpointer      data)
 {
-  gint width;
+  int width;

  gtk_tree_model_get (model, iter,
                      WIDTH_COLUMN, &width,
--- a/demos/gtk-demo/filtermodel.ui
+++ b/demos/gtk-demo/filtermodel.ui
@@ -45,12 +45,9 @@
            <attributes>
              <attribute name="weight" value="bold"></attribute>
            </attributes>
-            <accessibility>
-              <relation type="label-for" target="treeview1"/>
-            </accessibility>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">0</property>
+              <property name="column">0</property>
+              <property name="row">0</property>
            </layout>
          </object>
        </child>
@@ -83,12 +80,9 @@
                </child>
              </object>
            </child>
-            <accessibility>
-              <relation type="labelled-by" target="label1"/>
-            </accessibility>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">1</property>
+              <property name="column">0</property>
+              <property name="row">1</property>
            </layout>
          </object>
        </child>
@@ -133,12 +127,9 @@
                </child>
              </object>
            </child>
-            <accessibility>
-              <relation type="labelled-by" target="label2"/>
-            </accessibility>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">1</property>
+              <property name="column">1</property>
+              <property name="row">1</property>
            </layout>
          </object>
        </child>
@@ -149,12 +140,9 @@
            <attributes>
              <attribute name="weight" value="bold"></attribute>
            </attributes>
-            <accessibility>
-              <relation type="label-for" target="treeview2"/>
-            </accessibility>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">0</property>
+              <property name="column">1</property>
+              <property name="row">0</property>
            </layout>
          </object>
        </child>
@@ -165,12 +153,9 @@
            <attributes>
              <attribute name="weight" value="bold"></attribute>
            </attributes>
-            <accessibility>
-              <relation type="label-for" target="treeview3"/>
-            </accessibility>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">2</property>
+              <property name="column">0</property>
+              <property name="row">2</property>
            </layout>
          </object>
        </child>
@@ -197,12 +182,9 @@
                </child>
              </object>
            </child>
-            <accessibility>
-              <relation type="labelled-by" target="label3"/>
-            </accessibility>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">3</property>
+              <property name="column">0</property>
+              <property name="row">3</property>
            </layout>
          </object>
        </child>
--- a/demos/gtk-demo/fishbowl.c
+++ b/demos/gtk-demo/fishbowl.c
@@ -209,7 +209,7 @@ set_widget_type (GtkFishbowl *fishbowl,
                        widget_types[selected_widget_type].name);
 }

-void
+G_MODULE_EXPORT void
 fishbowl_next_button_clicked_cb (GtkButton *source,
                                 gpointer   user_data)
 {
@@ -224,7 +224,7 @@ fishbowl_next_button_clicked_cb (GtkButton *source,
  set_widget_type (fishbowl, new_index);
 }

-void
+G_MODULE_EXPORT void
 fishbowl_prev_button_clicked_cb (GtkButton *source,
                                 gpointer   user_data)
 {
@@ -239,7 +239,7 @@ fishbowl_prev_button_clicked_cb (GtkButton *source,
  set_widget_type (fishbowl, new_index);
 }

-void
+G_MODULE_EXPORT void
 fishbowl_changes_toggled_cb (GtkToggleButton *button,
                             gpointer         user_data)
 {
@@ -249,7 +249,7 @@ fishbowl_changes_toggled_cb (GtkToggleButton *button,
    gtk_button_set_icon_name (GTK_BUTTON (button), "changes-allow");
 }

-char *
+G_MODULE_EXPORT char *
 format_header_cb (GObject *object,
                  guint    count,
                  double   fps)
--- a/demos/gtk-demo/fishbowl.ui
+++ b/demos/gtk-demo/fishbowl.ui
@@ -6,7 +6,6 @@
    <property name="default-height">400</property>
    <child type="titlebar">
      <object class="GtkHeaderBar" id="">
-        <property name="show-title-buttons">1</property>
        <child>
          <object class="GtkBox">
            <style>
--- a/demos/gtk-demo/flowbox.c
+++ b/demos/gtk-demo/flowbox.c
@@ -29,7 +29,7 @@ draw_color (GtkDrawingArea *drawingarea,
 }

 static GtkWidget *
-color_swatch_new (const gchar *color)
+color_swatch_new (const char *color)
 {
  GtkWidget *button, *area;

@@ -48,7 +48,7 @@ do_flowbox (GtkWidget *do_widget)
 {
  static GtkWidget *window = NULL;
  GtkWidget *scrolled, *flowbox;
-  const gchar *colors[] = {
+  const char *colors[] = {
    "AliceBlue",
    "AntiqueWhite",
    "AntiqueWhite1",
@@ -716,7 +716,7 @@ do_flowbox (GtkWidget *do_widget)
    "YellowGreen",
    NULL
  };
-  gint i;
+  int i;

  if (!window)
    {
--- a/demos/gtk-demo/font-features.ui
+++ b/demos/gtk-demo/font-features.ui
@@ -7,7 +7,6 @@
    <property name="title">Font Explorer</property>
    <child type="titlebar">
      <object class="GtkHeaderBar">
-        <property name="show-title-buttons">1</property>
        <child>
          <object class="GtkButton" id="reset">
            <property name="receives-default">1</property>
--- a/demos/gtk-demo/font_features.c
+++ b/demos/gtk-demo/font_features.c
@@ -130,6 +130,10 @@ static const char *
 get_feature_display_name (unsigned int tag)
 {
  int i;
+  static char buf[5] = { 0, };
+
+  if (tag == MAKE_TAG ('x', 'x', 'x', 'x'))
+    return _("Default");

  for (i = 0; i < G_N_ELEMENTS (open_type_layout_features); i++)
    {
@@ -137,7 +141,10 @@ get_feature_display_name (unsigned int tag)
        return g_dpgettext2 (NULL, "OpenType layout", open_type_layout_features[i].name);
    }

-  return NULL;
+  hb_tag_to_string (tag, buf);
+  g_warning ("unknown OpenType layout feature tag: %s", buf);
+
+  return buf;
 }

 static void update_display (void);
@@ -151,26 +158,38 @@ set_inconsistent (GtkCheckButton *button,
 }

 static void
-feat_clicked (GtkWidget *feat,
-              gpointer   data)
+feat_pressed (GtkGestureClick *gesture,
+              int              n_press,
+              double           x,
+              double           y,
+              GtkWidget       *feat)
 {
-  g_signal_handlers_block_by_func (feat, feat_clicked, NULL);
+  const guint button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture));

-  if (gtk_check_button_get_inconsistent (GTK_CHECK_BUTTON (feat)))
+  if (button == GDK_BUTTON_PRIMARY)
    {
-      set_inconsistent (GTK_CHECK_BUTTON (feat), FALSE);
-      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (feat), TRUE);
-    }
-  else if (!gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (feat)))
-    {
-      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (feat), FALSE);
-    }
-  else
-    {
-      set_inconsistent (GTK_CHECK_BUTTON (feat), TRUE);
-    }
+      g_signal_handlers_block_by_func (feat, feat_pressed, NULL);

-  g_signal_handlers_unblock_by_func (feat, feat_clicked, NULL);
+      if (gtk_check_button_get_inconsistent (GTK_CHECK_BUTTON (feat)))
+        {
+          set_inconsistent (GTK_CHECK_BUTTON (feat), FALSE);
+          gtk_check_button_set_active (GTK_CHECK_BUTTON (feat), TRUE);
+        }
+
+      g_signal_handlers_unblock_by_func (feat, feat_pressed, NULL);
+    }
+  else if (button == GDK_BUTTON_SECONDARY)
+    {
+      gboolean inconsistent = gtk_check_button_get_inconsistent (GTK_CHECK_BUTTON (feat));
+      set_inconsistent (GTK_CHECK_BUTTON (feat), !inconsistent);
+    }
+}
+
+static void
+feat_toggled_cb (GtkCheckButton *check_button,
+                 gpointer        data)
+{
+  set_inconsistent (check_button, FALSE);
 }

 static void
@@ -201,6 +220,7 @@ add_check_group (GtkWidget   *box,
      unsigned int tag;
      GtkWidget *feat;
      FeatureItem *item;
+      GtkGesture *gesture;

      tag = hb_tag_from_string (tags[i], -1);

@@ -209,7 +229,12 @@ add_check_group (GtkWidget   *box,

      g_signal_connect (feat, "notify::active", G_CALLBACK (update_display), NULL);
      g_signal_connect (feat, "notify::inconsistent", G_CALLBACK (update_display), NULL);
-      g_signal_connect (feat, "clicked", G_CALLBACK (feat_clicked), NULL);
+      g_signal_connect (feat, "toggled", G_CALLBACK (feat_toggled_cb), NULL);
+
+      gesture = gtk_gesture_click_new ();
+      gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), GDK_BUTTON_SECONDARY);
+      g_signal_connect (gesture, "pressed", G_CALLBACK (feat_pressed), feat);
+      gtk_widget_add_controller (feat, GTK_EVENT_CONTROLLER (gesture));

      gtk_box_append (GTK_BOX (group), feat);

@@ -260,10 +285,11 @@ add_radio_group (GtkWidget *box,
      tag = hb_tag_from_string (tags[i], -1);
      name = get_feature_display_name (tag);

-      feat = gtk_radio_button_new_with_label_from_widget (GTK_RADIO_BUTTON (group_button),
-                                                          name ? name : _("Default"));
+      feat = gtk_check_button_new_with_label (name ? name : _("Default"));
      if (group_button == NULL)
        group_button = feat;
+      else
+        gtk_check_button_set_group (GTK_CHECK_BUTTON (feat), GTK_CHECK_BUTTON (group_button));

      g_signal_connect (feat, "notify::active", G_CALLBACK (update_display), NULL);
      g_object_set_data (G_OBJECT (feat), "default", group_button);
@@ -295,7 +321,7 @@ update_display (void)
  GList *l;
  PangoAttrList *attrs;
  PangoAttribute *attr;
-  gint ins, bound;
+  int ins, bound;
  guint start, end;
  PangoLanguage *lang;
  char *font_desc;
@@ -336,32 +362,35 @@ update_display (void)
      if (!gtk_widget_is_sensitive (item->feat))
        continue;

-      if (GTK_IS_RADIO_BUTTON (item->feat))
+      if (GTK_IS_CHECK_BUTTON (item->feat))
        {
-          if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (item->feat)) &&
-              strcmp (item->name, "xxxx") != 0)
+          if (g_object_get_data (G_OBJECT (item->feat), "default"))
            {
+              if (gtk_check_button_get_active (GTK_CHECK_BUTTON (item->feat)) &&
+                  strcmp (item->name, "xxxx") != 0)
+                {
+                  if (has_feature)
+                    g_string_append (s, ", ");
+                  g_string_append (s, item->name);
+                  g_string_append (s, " 1");
+                  has_feature = TRUE;
+                }
+            }
+          else
+            {
+              if (gtk_check_button_get_inconsistent (GTK_CHECK_BUTTON (item->feat)))
+                continue;
+
              if (has_feature)
                g_string_append (s, ", ");
              g_string_append (s, item->name);
-              g_string_append (s, " 1");
+              if (gtk_check_button_get_active (GTK_CHECK_BUTTON (item->feat)))
+                g_string_append (s, " 1");
+              else
+                g_string_append (s, " 0");
              has_feature = TRUE;
            }
        }
-      else if (GTK_IS_CHECK_BUTTON (item->feat))
-        {
-          if (gtk_check_button_get_inconsistent (GTK_CHECK_BUTTON (item->feat)))
-            continue;
-
-          if (has_feature)
-            g_string_append (s, ", ");
-          g_string_append (s, item->name);
-          if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (item->feat)))
-            g_string_append (s, " 1");
-          else
-            g_string_append (s, " 0");
-          has_feature = TRUE;
-        }
    }

  features = g_string_free (s, FALSE);
@@ -479,7 +508,7 @@ update_script_combo (void)
 {
  GtkListStore *store;
  hb_font_t *hb_font;
-  gint i, j, k;
+  int i, j, k;
  PangoFont *pango_font;
  GHashTable *tags;
  GHashTableIter iter;
@@ -593,7 +622,7 @@ update_script_combo (void)
 static void
 update_features (void)
 {
-  gint i, j;
+  int i, j;
  GtkTreeModel *model;
  GtkTreeIter iter;
  guint script_index, lang_index;
@@ -607,7 +636,7 @@ update_features (void)
      gtk_widget_hide (item->feat);
      gtk_widget_hide (gtk_widget_get_parent (item->feat));
      if (strcmp (item->name, "xxxx") == 0)
-        gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (item->feat), TRUE);
+        gtk_check_button_set_active (GTK_CHECK_BUTTON (item->feat), TRUE);
    }

  /* set feature presence checks from the font features */
@@ -661,14 +690,17 @@ update_features (void)
                    {
                      gtk_widget_show (item->feat);
                      gtk_widget_show (gtk_widget_get_parent (item->feat));
-                      if (GTK_IS_RADIO_BUTTON (item->feat))
+                      if (GTK_IS_CHECK_BUTTON (item->feat))
                        {
                          GtkWidget *def = GTK_WIDGET (g_object_get_data (G_OBJECT (item->feat), "default"));
-                          gtk_widget_show (def);
-                        }
-                      else if (GTK_IS_CHECK_BUTTON (item->feat))
-                        {
-                          set_inconsistent (GTK_CHECK_BUTTON (item->feat), TRUE);
+                          if (def)
+                            {
+                              gtk_widget_show (def);
+                              gtk_widget_show (gtk_widget_get_parent (def));
+                              gtk_check_button_set_active (GTK_CHECK_BUTTON (def), TRUE);
+                            }
+                          else
+                            set_inconsistent (GTK_CHECK_BUTTON (item->feat), TRUE);
                        }
                    }
                }
@@ -690,14 +722,14 @@ update_features (void)
              p = strstr (feat, buf);
              if (p)
                {
-                  if (GTK_IS_RADIO_BUTTON (item->feat))
+                  if (GTK_IS_CHECK_BUTTON (item->feat) && g_object_get_data (G_OBJECT (item->feat), "default"))
                    {
-                      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (item->feat), p[6] == '1');
+                      gtk_check_button_set_active (GTK_CHECK_BUTTON (item->feat), p[6] == '1');
                    }
                  else if (GTK_IS_CHECK_BUTTON (item->feat))
                    {
                      set_inconsistent (GTK_CHECK_BUTTON (item->feat), FALSE);
-                      gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (item->feat), p[6] == '1');
+                      gtk_check_button_set_active (GTK_CHECK_BUTTON (item->feat), p[6] == '1');
                    }
                }
            }
@@ -728,8 +760,8 @@ static void
 entry_activated (GtkEntry *entry,
                 GtkAdjustment *adjustment)
 {
-  gdouble value;
-  gchar *err = NULL;
+  double value;
+  char *err = NULL;

  value = g_strtod (gtk_editable_get_text (GTK_EDITABLE (entry)), &err);
  if (err != NULL)
@@ -939,7 +971,7 @@ instance_changed (GtkComboBox *combo)
    {
      Axis *axis;
      Axis akey;
-      gdouble value;
+      double value;

      value = coords[ai[i].axis_index];

@@ -1134,15 +1166,15 @@ font_features_reset_features (void)
    {
      FeatureItem *item = l->data;

-      if (GTK_IS_RADIO_BUTTON (item->feat))
+      if (GTK_IS_CHECK_BUTTON (item->feat))
        {
          if (strcmp (item->name, "xxxx") == 0)
-            gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (item->feat), TRUE);
-        }
-      else if (GTK_IS_CHECK_BUTTON (item->feat))
-        {
-          gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (item->feat), FALSE);
-          set_inconsistent (GTK_CHECK_BUTTON (item->feat), TRUE);
+            gtk_check_button_set_active (GTK_CHECK_BUTTON (item->feat), TRUE);
+          else
+            {
+              gtk_check_button_set_active (GTK_CHECK_BUTTON (item->feat), FALSE);
+              set_inconsistent (GTK_CHECK_BUTTON (item->feat), TRUE);
+            }
        }
    }
 }
@@ -1285,8 +1317,7 @@ do_font_features (GtkWidget *do_widget)
                                                                            "palt",
                                                                            "twid",
                                                                            "qwid", NULL });
-      add_check_group (feature_list, _("Alternative Stylistic Sets"), (const char *[]){ "ss00",
-                                                                                        "ss01",
+      add_check_group (feature_list, _("Alternative Stylistic Sets"), (const char *[]){ "ss01",
                                                                                        "ss02",
                                                                                        "ss03",
                                                                                        "ss04",
--- a/demos/gtk-demo/fontify.c
+++ b/demos/gtk-demo/fontify.c
@@ -0,0 +1,458 @@
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "config.h"
+
+#include <gtk/gtk.h>
+#include <glib/gstdio.h>
+
+#ifdef HAVE_GIO_UNIX
+#include <gio/gunixoutputstream.h>
+#include <fcntl.h>
+#endif
+
+
+/* This is the guts of gtk_text_buffer_insert_markup,
+ * copied here so we can make an incremental version.
+ */
+static void
+insert_tags_for_attributes (GtkTextBuffer     *buffer,
+                            PangoAttrIterator *iter,
+                            GtkTextIter       *start,
+                            GtkTextIter       *end)
+{
+  GtkTextTagTable *table;
+  PangoAttribute *attr;
+  GtkTextTag *tag;
+  char name[256];
+
+  table = gtk_text_buffer_get_tag_table (buffer);
+
+#define STRING_ATTR(pango_attr_name, attr_name) \
+  attr = pango_attr_iterator_get (iter, pango_attr_name); \
+  if (attr) \
+    { \
+      const char *string = ((PangoAttrString*)attr)->value; \
+      g_snprintf (name, 256, #attr_name "=%s", string); \
+      tag = gtk_text_tag_table_lookup (table, name); \
+      if (!tag) \
+        { \
+          tag = gtk_text_tag_new (name); \
+          g_object_set (tag, #attr_name, string, NULL); \
+          gtk_text_tag_table_add (table, tag); \
+          g_object_unref (tag); \
+        } \
+      gtk_text_buffer_apply_tag (buffer, tag, start, end); \
+    }
+
+#define INT_ATTR(pango_attr_name, attr_name) \
+  attr = pango_attr_iterator_get (iter, pango_attr_name); \
+  if (attr) \
+    { \
+      int value = ((PangoAttrInt*)attr)->value; \
+      g_snprintf (name, 256, #attr_name "=%d", value); \
+      tag = gtk_text_tag_table_lookup (table, name); \
+      if (!tag) \
+        { \
+          tag = gtk_text_tag_new (name); \
+          g_object_set (tag, #attr_name, value, NULL); \
+          gtk_text_tag_table_add (table, tag); \
+          g_object_unref (tag); \
+        } \
+      gtk_text_buffer_apply_tag (buffer, tag, start, end); \
+    }
+
+#define FLOAT_ATTR(pango_attr_name, attr_name) \
+  attr = pango_attr_iterator_get (iter, pango_attr_name); \
+  if (attr) \
+    { \
+      float value = ((PangoAttrFloat*)attr)->value; \
+      g_snprintf (name, 256, #attr_name "=%g", value); \
+      tag = gtk_text_tag_table_lookup (table, name); \
+      if (!tag) \
+        { \
+          tag = gtk_text_tag_new (name); \
+          g_object_set (tag, #attr_name, value, NULL); \
+          gtk_text_tag_table_add (table, tag); \
+          g_object_unref (tag); \
+        } \
+      gtk_text_buffer_apply_tag (buffer, tag, start, end); \
+    }
+
+#define RGBA_ATTR(pango_attr_name, attr_name) \
+  attr = pango_attr_iterator_get (iter, pango_attr_name); \
+  if (attr) \
+    { \
+      PangoColor *color; \
+      GdkRGBA rgba; \
+      color = &((PangoAttrColor*)attr)->color; \
+      rgba.red = color->red / 65535.; \
+      rgba.green = color->green / 65535.; \
+      rgba.blue = color->blue / 65535.; \
+      rgba.alpha = 1.; \
+      char *str = gdk_rgba_to_string (&rgba); \
+      g_snprintf (name, 256, #attr_name "=%s", str); \
+      g_free (str); \
+      tag = gtk_text_tag_table_lookup (table, name); \
+      if (!tag) \
+        { \
+          tag = gtk_text_tag_new (name); \
+          g_object_set (tag, #attr_name, &rgba, NULL); \
+          gtk_text_tag_table_add (table, tag); \
+          g_object_unref (tag); \
+        } \
+      gtk_text_buffer_apply_tag (buffer, tag, start, end); \
+    }
+
+  attr = pango_attr_iterator_get (iter, PANGO_ATTR_LANGUAGE);
+  if (attr)
+    {
+      const char *language = pango_language_to_string (((PangoAttrLanguage*)attr)->value);
+      g_snprintf (name, 256, "language=%s", language);
+      tag = gtk_text_tag_table_lookup (table, name);
+      if (!tag)
+        {
+          tag = gtk_text_tag_new (name);
+          g_object_set (tag, "language", language, NULL);
+          gtk_text_tag_table_add (table, tag);
+          g_object_unref (tag);
+        }
+      gtk_text_buffer_apply_tag (buffer, tag, start, end);
+    }
+
+  STRING_ATTR (PANGO_ATTR_FAMILY, family)
+  INT_ATTR    (PANGO_ATTR_STYLE, style)
+  INT_ATTR    (PANGO_ATTR_WEIGHT, weight)
+  INT_ATTR    (PANGO_ATTR_VARIANT, variant)
+  INT_ATTR    (PANGO_ATTR_STRETCH, stretch)
+  INT_ATTR    (PANGO_ATTR_SIZE, size)
+
+  attr = pango_attr_iterator_get (iter, PANGO_ATTR_FONT_DESC);
+  if (attr)
+    {
+      PangoFontDescription *desc = ((PangoAttrFontDesc*)attr)->desc;
+      char *str = pango_font_description_to_string (desc);
+      g_snprintf (name, 256, "font-desc=%s", str);
+      g_free (str);
+      tag = gtk_text_tag_table_lookup (table, name);
+      if (!tag)
+        {
+          tag = gtk_text_tag_new (name);
+          g_object_set (tag, "font-desc", desc, NULL);
+          gtk_text_tag_table_add (table, tag);
+          g_object_unref (tag);
+        }
+      gtk_text_buffer_apply_tag (buffer, tag, start, end);
+    }
+
+  RGBA_ATTR   (PANGO_ATTR_FOREGROUND, foreground_rgba)
+  RGBA_ATTR   (PANGO_ATTR_BACKGROUND, background_rgba)
+  INT_ATTR    (PANGO_ATTR_UNDERLINE, underline)
+  RGBA_ATTR   (PANGO_ATTR_UNDERLINE_COLOR, underline_rgba)
+  INT_ATTR    (PANGO_ATTR_OVERLINE, overline)
+  RGBA_ATTR   (PANGO_ATTR_OVERLINE_COLOR, overline_rgba)
+  INT_ATTR    (PANGO_ATTR_STRIKETHROUGH, strikethrough)
+  RGBA_ATTR   (PANGO_ATTR_STRIKETHROUGH_COLOR, strikethrough_rgba)
+  INT_ATTR    (PANGO_ATTR_RISE, rise)
+  FLOAT_ATTR  (PANGO_ATTR_SCALE, scale)
+  INT_ATTR    (PANGO_ATTR_FALLBACK, fallback)
+  INT_ATTR    (PANGO_ATTR_LETTER_SPACING, letter_spacing)
+  STRING_ATTR (PANGO_ATTR_FONT_FEATURES, font_features)
+  INT_ATTR    (PANGO_ATTR_ALLOW_BREAKS, allow_breaks)
+  INT_ATTR    (PANGO_ATTR_SHOW, show_spaces)
+  INT_ATTR    (PANGO_ATTR_INSERT_HYPHENS, insert_hyphens)
+}
+
+typedef struct
+{
+  GMarkupParseContext *parser;
+  char *markup;
+  gsize pos;
+  gsize len;
+  GtkTextBuffer *buffer;
+  GtkTextIter iter;
+  GtkTextMark *mark;
+  PangoAttrList *attributes;
+  char *text;
+  PangoAttrIterator *attr;
+} MarkupData;
+
+static void
+free_markup_data (MarkupData *mdata)
+{
+  g_free (mdata->markup);
+  g_clear_pointer (&mdata->parser, g_markup_parse_context_free);
+  gtk_text_buffer_delete_mark (mdata->buffer, mdata->mark);
+  g_clear_pointer (&mdata->attr, pango_attr_iterator_destroy);
+  g_clear_pointer (&mdata->attributes, pango_attr_list_unref);
+  g_free (mdata->text);
+  g_object_unref (mdata->buffer);
+  g_free (mdata);
+}
+
+static gboolean
+insert_markup_idle (gpointer data)
+{
+  MarkupData *mdata = data;
+  gint64 begin;
+
+  begin = g_get_monotonic_time ();
+
+  do
+    {
+      int start, end;
+      int start_offset;
+      GtkTextIter start_iter;
+
+      if (g_get_monotonic_time () - begin > G_TIME_SPAN_MILLISECOND)
+        {
+          g_idle_add (insert_markup_idle, data);
+          return G_SOURCE_REMOVE;
+        }
+
+      pango_attr_iterator_range (mdata->attr, &start, &end);
+
+      if (end == G_MAXINT) /* last chunk */
+        end = start - 1; /* resulting in -1 to be passed to _insert */
+
+      start_offset = gtk_text_iter_get_offset (&mdata->iter);
+      gtk_text_buffer_insert (mdata->buffer, &mdata->iter, mdata->text + start, end - start);
+      gtk_text_buffer_get_iter_at_offset (mdata->buffer, &start_iter, start_offset);
+
+      insert_tags_for_attributes (mdata->buffer, mdata->attr, &start_iter, &mdata->iter);
+
+      gtk_text_buffer_get_iter_at_mark (mdata->buffer, &mdata->iter, mdata->mark);
+    }
+  while (pango_attr_iterator_next (mdata->attr));
+
+  free_markup_data (mdata);
+  return G_SOURCE_REMOVE;
+}
+
+static gboolean
+parse_markup_idle (gpointer data)
+{
+  MarkupData *mdata = data;
+  gint64 begin;
+  GError *error = NULL;
+
+  begin = g_get_monotonic_time ();
+
+  do {
+    if (g_get_monotonic_time () - begin > G_TIME_SPAN_MILLISECOND)
+      {
+        g_idle_add (parse_markup_idle, data);
+        return G_SOURCE_REMOVE;
+      }
+
+    if (!g_markup_parse_context_parse (mdata->parser,
+                                       mdata->markup + mdata->pos,
+                                       MIN (4096, mdata->len - mdata->pos),
+                                       &error))
+      {
+        g_warning ("Invalid markup string: %s", error->message);
+        g_error_free (error);
+        free_markup_data (mdata);
+        return G_SOURCE_REMOVE;
+      }
+
+    mdata->pos += 4096;
+  } while (mdata->pos < mdata->len);
+
+  if (!pango_markup_parser_finish (mdata->parser,
+                                   &mdata->attributes,
+                                   &mdata->text,
+                                   NULL,
+                                   &error))
+    {
+      g_warning ("Invalid markup string: %s", error->message);
+      g_error_free (error);
+      free_markup_data (mdata);
+      return G_SOURCE_REMOVE;
+    }
+
+  if (!mdata->attributes)
+    {
+      gtk_text_buffer_insert (mdata->buffer, &mdata->iter, mdata->text, -1);
+      free_markup_data (mdata);
+      return G_SOURCE_REMOVE;
+    }
+
+  mdata->attr = pango_attr_list_get_iterator (mdata->attributes);
+  insert_markup_idle (data);
+
+  return G_SOURCE_REMOVE;
+}
+
+/* Takes a ref on @buffer while it is operating,
+ * and consumes @markup.
+ */
+static void
+insert_markup (GtkTextBuffer *buffer,
+               GtkTextIter   *iter,
+               char          *markup,
+               int            len)
+{
+  MarkupData *data;
+
+  g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
+
+  data = g_new0 (MarkupData, 1);
+
+  data->buffer = g_object_ref (buffer);
+  data->iter = *iter;
+  data->markup = markup;
+  data->len = len;
+
+  data->parser = pango_markup_parser_new (0);
+  data->pos = 0;
+
+  /* create mark with right gravity */
+  data->mark = gtk_text_buffer_create_mark (buffer, NULL, iter, FALSE);
+
+  parse_markup_idle (data);
+}
+
+static void
+fontify_finish (GObject      *source,
+                GAsyncResult *result,
+                gpointer      data)
+{
+  GSubprocess *subprocess = G_SUBPROCESS (source);
+  GtkTextBuffer *buffer = data;
+  GBytes *stdout_buf = NULL;
+  GBytes *stderr_buf = NULL;
+  GError *error = NULL;
+
+  if (!g_subprocess_communicate_finish (subprocess,
+                                        result,
+                                        &stdout_buf,
+                                        &stderr_buf,
+                                        &error))
+    {
+      g_clear_pointer (&stdout_buf, g_bytes_unref);
+      g_clear_pointer (&stderr_buf, g_bytes_unref);
+
+      g_warning ("%s", error->message);
+      g_clear_error (&error);
+
+      g_object_unref (subprocess);
+      g_object_unref (buffer);
+      return;
+    }
+
+  if (g_subprocess_get_exit_status (subprocess) != 0)
+    {
+      if (stderr_buf)
+        g_warning ("%s", (char *)g_bytes_get_data (stderr_buf, NULL));
+      g_clear_pointer (&stderr_buf, g_bytes_unref);
+    }
+
+  g_object_unref (subprocess);
+
+  g_clear_pointer (&stderr_buf, g_bytes_unref);
+
+  if (stdout_buf)
+    {
+      char *markup;
+      gsize len;
+      char *p;
+      GtkTextIter start;
+
+      gtk_text_buffer_set_text (buffer, "", 0);
+
+      /* highlight puts a span with font and size around its output,
+       * which we don't want.
+       */
+      markup = g_bytes_unref_to_data (stdout_buf, &len);
+      for (p = markup + strlen ("<span "); *p != '>'; p++) *p = ' ';
+
+      gtk_text_buffer_get_start_iter (buffer, &start);
+      insert_markup (buffer, &start, markup, len);
+   }
+
+  g_object_unref (buffer);
+}
+
+void
+fontify (const char    *format,
+         GtkTextBuffer *source_buffer)
+{
+  GSubprocess *subprocess;
+  char *format_arg;
+  GtkSettings *settings;
+  char *theme;
+  gboolean prefer_dark;
+  const char *style_arg;
+  const char *text;
+  GtkTextIter start, end;
+  GBytes *bytes;
+  GError *error = NULL;
+
+  settings = gtk_settings_get_default ();
+  g_object_get (settings,
+                "gtk-theme-name", &theme,
+                "gtk-application-prefer-dark-theme", &prefer_dark,
+                NULL);
+
+  if (prefer_dark || strcmp (theme, "HighContrastInverse") == 0)
+    style_arg = "--style=edit-vim-dark";
+  else
+    style_arg = "--style=edit-kwrite";
+
+  g_free (theme);
+
+  format_arg = g_strconcat ("--syntax=", format, NULL);
+  subprocess = g_subprocess_new (G_SUBPROCESS_FLAGS_STDIN_PIPE |
+                                 G_SUBPROCESS_FLAGS_STDOUT_PIPE |
+                                 G_SUBPROCESS_FLAGS_STDERR_PIPE,
+                                 &error,
+                                 "highlight",
+                                 format_arg,
+                                 "--out-format=pango",
+                                 style_arg,
+                                 NULL);
+  g_free (format_arg);
+
+  if (!subprocess)
+    {
+      if (g_error_matches (error, G_SPAWN_ERROR, G_SPAWN_ERROR_NOENT))
+        {
+          static gboolean warned = FALSE;
+
+          if (!warned)
+            {
+              warned = TRUE;
+              g_message ("For syntax highlighting, install the “highlight” program");
+            }
+        }
+      else
+        g_warning ("%s", error->message);
+
+      g_clear_error (&error);
+
+      return;
+    }
+
+  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));
+
+#ifdef HAVE_GIO_UNIX
+  /* Work around https://gitlab.gnome.org/GNOME/glib/-/issues/2182 */
+  if (G_IS_UNIX_OUTPUT_STREAM (g_subprocess_get_stdin_pipe (subprocess)))
+    {
+      GOutputStream *stdin_pipe = g_subprocess_get_stdin_pipe (subprocess);
+      int fd = g_unix_output_stream_get_fd (G_UNIX_OUTPUT_STREAM (stdin_pipe));
+      fcntl (fd, F_SETFL, O_NONBLOCK);
+    }
+#endif
+
+  g_subprocess_communicate_async (subprocess,
+                                  bytes,
+                                  NULL,
+                                  fontify_finish,
+                                  g_object_ref (source_buffer));
+}
--- a/demos/gtk-demo/fontify.h
+++ b/demos/gtk-demo/fontify.h
@@ -0,0 +1,6 @@
+#pragma once
+
+#include <gtk/gtk.h>
+
+void fontify (const char    *format,
+              GtkTextBuffer *buffer);
--- a/demos/gtk-demo/fontplane.c
+++ b/demos/gtk-demo/fontplane.c
@@ -36,11 +36,11 @@ adjustment_get_normalized_value (GtkAdjustment *adj)

 static void
 val_to_xy (GtkFontPlane *plane,
-           gint          *x,
-           gint          *y)
+           int           *x,
+           int           *y)
 {
-  gdouble u, v;
-  gint width, height;
+  double u, v;
+  int width, height;

  width = gtk_widget_get_allocated_width (GTK_WIDGET (plane));
  height = gtk_widget_get_allocated_height (GTK_WIDGET (plane));
@@ -57,8 +57,8 @@ plane_snapshot (GtkWidget   *widget,
                GtkSnapshot *snapshot)
 {
  GtkFontPlane *plane = GTK_FONT_PLANE (widget);
-  gint x, y;
-  gint width, height;
+  int x, y;
+  int width, height;
  cairo_t *cr;

  val_to_xy (plane, &x, &y);
@@ -125,11 +125,11 @@ adjustment_set_normalized_value (GtkAdjustment *adj,

 static void
 update_value (GtkFontPlane *plane,
-              gint           x,
-              gint           y)
+              int            x,
+              int            y)
 {
  GtkWidget *widget = GTK_WIDGET (plane);
-  gdouble u, v;
+  double u, v;

  u = CLAMP (x * (1.0 / gtk_widget_get_allocated_width (widget)), 0, 1);
  v = CLAMP (1 - y * (1.0 / gtk_widget_get_allocated_height (widget)), 0, 1);
@@ -142,8 +142,8 @@ update_value (GtkFontPlane *plane,

 static void
 plane_drag_gesture_begin (GtkGestureDrag *gesture,
-                          gdouble         start_x,
-                          gdouble         start_y,
+                          double          start_x,
+                          double          start_y,
                          GtkFontPlane  *plane)
 {
  guint button;
@@ -164,11 +164,11 @@ plane_drag_gesture_begin (GtkGestureDrag *gesture,

 static void
 plane_drag_gesture_update (GtkGestureDrag *gesture,
-                           gdouble         offset_x,
-                           gdouble         offset_y,
+                           double          offset_x,
+                           double          offset_y,
                           GtkFontPlane  *plane)
 {
-  gdouble start_x, start_y;
+  double start_x, start_y;

  gtk_gesture_drag_get_start_point (GTK_GESTURE_DRAG (gesture),
                                    &start_x, &start_y);
@@ -177,8 +177,8 @@ plane_drag_gesture_update (GtkGestureDrag *gesture,

 static void
 plane_drag_gesture_end (GtkGestureDrag *gesture,
-                        gdouble         offset_x,
-                        gdouble         offset_y,
+                        double          offset_x,
+                        double          offset_y,
                        GtkFontPlane  *plane)
 {
  set_cross_cursor (GTK_WIDGET (plane), FALSE);
--- a/demos/gtk-demo/fontrendering.c
+++ b/demos/gtk-demo/fontrendering.c
@@ -19,13 +19,7 @@ static GtkWidget *show_extents = NULL;

 static PangoContext *context;

-static int scale = 10;
-
-static void
-on_destroy (gpointer data)
-{
-  window = NULL;
-}
+static int scale = 9;

 static void
 update_image (void)
@@ -65,7 +59,7 @@ update_image (void)
    hintstyle = CAIRO_HINT_STYLE_DEFAULT;
  cairo_font_options_set_hint_style (fopt, hintstyle);

-  if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (hint_metrics)))
+  if (gtk_check_button_get_active (GTK_CHECK_BUTTON (hint_metrics)))
    hintmetrics = CAIRO_HINT_METRICS_ON;
  else
    hintmetrics = CAIRO_HINT_METRICS_OFF;
@@ -113,7 +107,7 @@ update_image (void)
      cr = cairo_create (surface);
      cairo_set_line_width (cr, 1);

-      if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (show_grid)))
+      if (gtk_check_button_get_active (GTK_CHECK_BUTTON (show_grid)))
        {
          int i;
          cairo_set_source_rgba (cr, 0.2, 0, 0, 0.2);
@@ -131,7 +125,7 @@ update_image (void)
            }
        }

-      if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (show_extents)))
+      if (gtk_check_button_get_active (GTK_CHECK_BUTTON (show_extents)))
        {
          cairo_set_source_rgba (cr, 0, 0, 1, 1);

@@ -251,9 +245,7 @@ do_fontrendering (GtkWidget *do_widget)
      window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
      gtk_window_set_display (GTK_WINDOW (window),
                              gtk_widget_get_display (do_widget));
-      g_signal_connect (window, "destroy",
-                        G_CALLBACK (on_destroy), NULL);
-      g_object_set_data_full (G_OBJECT (window), "builder", builder, g_object_unref);
+      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
      font_button = GTK_WIDGET (gtk_builder_get_object (builder, "font_button"));
      up_button = GTK_WIDGET (gtk_builder_get_object (builder, "up_button"));
      down_button = GTK_WIDGET (gtk_builder_get_object (builder, "down_button"));
@@ -276,6 +268,8 @@ do_fontrendering (GtkWidget *do_widget)
      g_signal_connect (show_extents, "notify::active", G_CALLBACK (update_image), NULL);

      update_image ();
+
+      g_object_unref (builder);
    }

  if (!gtk_widget_get_visible (window))
--- a/demos/gtk-demo/fontrendering.ui
+++ b/demos/gtk-demo/fontrendering.ui
@@ -6,164 +6,11 @@
    <property name="page-increment">4</property>
  </object>
  <object class="GtkWindow" id="window">
-    <property name="default-width">600</property>
-    <property name="default-height">300</property>
-    <property name="title">Font rendering</property>
-    <child>
-      <object class="GtkGrid">
-        <property name="margin-top">10</property>
-        <property name="row-spacing">10</property>
-        <property name="column-spacing">10</property>
-        <child>
-          <object class="GtkLabel">
-            <property name="margin-start">10</property>
-            <property name="label">Text</property>
-            <property name="xalign">1</property>
-            <style>
-              <class name="dim-label"/>
-            </style>
-          </object>
-        </child>
-        <child>
-          <object class="GtkEntry" id="entry">
-            <property name="text">Fonts render</property>
-            <layout>
-              <property name="left-attach">1</property>
-            </layout>
-          </object>
-        </child>
-        <child>
-          <object class="GtkLabel">
-            <property name="margin-start">10</property>
-            <property name="label">Font</property>
-            <property name="xalign">1</property>
-            <style>
-              <class name="dim-label"/>
-            </style>
-            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">1</property>
-            </layout>
-          </object>
-        </child>
-        <child>
-          <object class="GtkFontButton" id="font_button">
-            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">1</property>
-            </layout>
-          </object>
-        </child>
-        <child>
-          <object class="GtkLabel">
-            <property name="label">Hinting</property>
-            <property name="xalign">1</property>
-            <style>
-              <class name="dim-label"/>
-            </style>
-            <layout>
-              <property name="left-attach">2</property>
-            </layout>
-          </object>
-        </child>
-        <child>
-          <object class="GtkComboBoxText" id="hinting">
-            <property name="active">0</property>
-            <property name="valign">center</property>
-            <items>
-              <item translatable="yes" id="none">None</item>
-              <item translatable="yes" id="slight">Slight</item>
-              <item translatable="yes" id="medium">Medium</item>
-              <item translatable="yes" id="full">Full</item>
-            </items>
-            <layout>
-              <property name="left-attach">3</property>
-            </layout>
-          </object>
-        </child>
-        <child>
-          <object class="GtkCheckButton" id="hint_metrics">
-            <child>
-              <object class="GtkLabel">
-                <property name="label">Hint Metrics</property>
-                <style>
-                  <class name="dim-label"/>
-                </style>
-              </object>
-            </child>
-            <layout>
-              <property name="left-attach">3</property>
-              <property name="top-attach">1</property>
-            </layout>
-          </object>
-        </child>
-        <child>
-          <object class="GtkCheckButton" id="show_extents">
-            <property name="active">1</property>
-            <child>
-              <object class="GtkLabel">
-                <property name="label">Show Extents</property>
-                <style>
-                  <class name="dim-label"/>
-                </style>
-              </object>
-            </child>
-            <layout>
-              <property name="left-attach">4</property>
-              <property name="top-attach">0</property>
-            </layout>
-          </object>
-        </child>
-        <child>
-          <object class="GtkCheckButton" id="show_grid">
-            <property name="active">1</property>
-            <child>
-              <object class="GtkLabel">
-                <property name="label">Show Grid</property>
-                <style>
-                  <class name="dim-label"/>
-                </style>
-              </object>
-            </child>
-            <layout>
-              <property name="left-attach">4</property>
-              <property name="top-attach">1</property>
-            </layout>
-          </object>
-        </child>
-        <child>
-          <object class="GtkButton" id="up_button">
-            <property name="icon-name">list-add-symbolic</property>
-            <style>
-              <class name="circular"/>
-            </style>
-            <layout>
-              <property name="left-attach">5</property>
-              <property name="top-attach">0</property>
-            </layout>
-          </object>
-        </child>
-        <child>
-          <object class="GtkButton" id="down_button">
-            <property name="icon-name">list-remove-symbolic</property>
-            <style>
-              <class name="circular"/>
-            </style>
-            <layout>
-              <property name="left-attach">5</property>
-              <property name="top-attach">1</property>
-            </layout>
-          </object>
-        </child>
-        <child>
-          <object class="GtkLabel">
-            <property name="hexpand">1</property>
-            <layout>
-              <property name="left-attach">6</property>
-            </layout>
-          </object>
-        </child>
-        <child>
+    <property name="default-width">1080</property>
+    <property name="default-height">430</property>
+    <child type="titlebar">
+      <object class="GtkHeaderBar">
+        <child type="title">
          <object class="GtkBox">
            <property name="halign">center</property>
            <property name="valign">center</property>
@@ -171,29 +18,170 @@
              <class name="linked"/>
            </style>
            <child>
-              <object class="GtkRadioButton" id="text_radio">
-                <property name="draw-indicator">0</property>
+              <object class="GtkToggleButton" id="text_radio">
                <property name="label">Text</property>
+                <property name="active">1</property>
              </object>
            </child>
            <child>
-              <object class="GtkRadioButton" id="grid_radio">
-                <property name="draw-indicator">0</property>
+              <object class="GtkToggleButton" id="grid_radio">
                <property name="label">Grid</property>
                <property name="group">text_radio</property>
              </object>
            </child>
-            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">3</property>
-              <property name="column-span">7</property>
-            </layout>
          </object>
        </child>
+      </object>
+    </child>
+    <child>
+      <object class="GtkBox">
+        <property name="orientation">vertical</property>
+        <child>
+          <object class="GtkGrid">
+            <property name="halign">center</property>
+            <property name="margin-top">10</property>
+            <property name="margin-bottom">10</property>
+            <property name="row-spacing">10</property>
+            <property name="column-spacing">10</property>
+            <child>
+              <object class="GtkLabel">
+                <property name="margin-start">10</property>
+                <property name="label">Text</property>
+                <property name="xalign">1</property>
+                <style>
+                  <class name="dim-label"/>
+                </style>
+                <layout>
+                  <property name="column">1</property>
+                </layout>
+              </object>
+            </child>
+            <child>
+              <object class="GtkEntry" id="entry">
+                <property name="text">Fonts render</property>
+                <layout>
+                  <property name="column">2</property>
+                </layout>
+              </object>
+            </child>
+            <child>
+              <object class="GtkLabel">
+                <property name="margin-start">10</property>
+                <property name="label">Font</property>
+                <property name="xalign">1</property>
+                <style>
+                  <class name="dim-label"/>
+                </style>
+                <layout>
+                  <property name="column">1</property>
+                  <property name="row">1</property>
+                </layout>
+              </object>
+            </child>
+            <child>
+              <object class="GtkFontButton" id="font_button">
+                <layout>
+                  <property name="column">2</property>
+                  <property name="row">1</property>
+                </layout>
+              </object>
+            </child>
+            <child>
+              <object class="GtkLabel">
+                <property name="label">Hinting</property>
+                <property name="xalign">1</property>
+                <style>
+                  <class name="dim-label"/>
+                </style>
+                <layout>
+                  <property name="column">3</property>
+                </layout>
+              </object>
+            </child>
+            <child>
+              <object class="GtkComboBoxText" id="hinting">
+                <property name="active">0</property>
+                <property name="valign">center</property>
+                <items>
+                  <item translatable="yes" id="none">None</item>
+                  <item translatable="yes" id="slight">Slight</item>
+                  <item translatable="yes" id="medium">Medium</item>
+                  <item translatable="yes" id="full">Full</item>
+                </items>
+                <layout>
+                  <property name="column">4</property>
+                </layout>
+              </object>
+            </child>
+            <child>
+              <object class="GtkCheckButton" id="hint_metrics">
+                <property name="label">Hint Metrics</property>
+                <layout>
+                  <property name="column">4</property>
+                  <property name="row">1</property>
+                </layout>
+              </object>
+            </child>
+            <child>
+              <object class="GtkCheckButton" id="show_extents">
+                <property name="label">Show Extents</property>
+                <property name="active">1</property>
+                <layout>
+                  <property name="column">5</property>
+                  <property name="row">0</property>
+                </layout>
+              </object>
+            </child>
+            <child>
+              <object class="GtkCheckButton" id="show_grid">
+                <property name="active">1</property>
+                <property name="label">Show Grid</property>
+                <layout>
+                  <property name="column">5</property>
+                  <property name="row">1</property>
+                </layout>
+              </object>
+            </child>
+            <child>
+              <object class="GtkButton" id="up_button">
+                <property name="icon-name">list-add-symbolic</property>
+                <style>
+                  <class name="circular"/>
+                </style>
+                <layout>
+                  <property name="column">6</property>
+                  <property name="row">0</property>
+                </layout>
+              </object>
+            </child>
+            <child>
+              <object class="GtkButton" id="down_button">
+                <property name="icon-name">list-remove-symbolic</property>
+                <style>
+                  <class name="circular"/>
+                </style>
+                <layout>
+                  <property name="column">6</property>
+                  <property name="row">1</property>
+                </layout>
+              </object>
+            </child>
+            <child>
+              <object class="GtkLabel">
+                <property name="hexpand">1</property>
+                <layout>
+                  <property name="column">7</property>
+                </layout>
+              </object>
+            </child>
+          </object>
+        </child>
+        <child>
+          <object class="GtkSeparator"/>
+        </child>
        <child>
          <object class="GtkScrolledWindow">
            <property name="propagate-natural-height">1</property>
-            <property name="has-frame">1</property>
            <property name="hexpand">1</property>
            <property name="vexpand">1</property>
            <child>
@@ -203,11 +191,6 @@
                <property name="can-shrink">0</property>
              </object>
            </child>
-            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">4</property>
-              <property name="column-span">7</property>
-            </layout>
          </object>
        </child>
      </object>
--- a/demos/gtk-demo/four_point_transform.c
+++ b/demos/gtk-demo/four_point_transform.c
@@ -0,0 +1,94 @@
+#include "four_point_transform.h"
+#include "singular_value_decomposition.h"
+
+/* Make a 4x4 matrix that maps
+ * e1        -> p1
+ * e2        -> p3
+ * e3        -> p3
+ * (1,1,1,0) -> p4
+ */
+static void
+unit_to (graphene_point3d_t *p1,
+         graphene_point3d_t *p2,
+         graphene_point3d_t *p3,
+         graphene_point3d_t *p4,
+         graphene_matrix_t  *m)
+{
+  graphene_vec3_t v1, v2, v3, v4;
+  graphene_vec4_t vv1, vv2, vv3, vv4, p;
+  graphene_matrix_t u, s;
+  float v[16] = { 0., };
+  double A[16];
+  double U[16];
+  double S[4];
+  double V[16];
+  double B[4];
+  double x[4];
+  int i, j;
+
+  graphene_point3d_to_vec3 (p1, &v1);
+  graphene_point3d_to_vec3 (p2, &v2);
+  graphene_point3d_to_vec3 (p3, &v3);
+  graphene_point3d_to_vec3 (p4, &v4);
+
+  graphene_vec4_init_from_vec3 (&vv1, &v1, 1.);
+  graphene_vec4_init_from_vec3 (&vv2, &v2, 1.);
+  graphene_vec4_init_from_vec3 (&vv3, &v3, 1.);
+  graphene_vec4_init_from_vec3 (&vv4, &v4, 1.);
+
+  graphene_vec4_init (&p, 0., 0., 0., 1.);
+
+  graphene_matrix_init_from_vec4 (&u, &vv1, &vv2, &vv3, &p);
+
+  /* solve x * u = vv4 */
+
+  for (i = 0; i < 4; i++)
+    for (j = 0; j < 4; j++)
+      A[j * 4 + i] = graphene_matrix_get_value (&u, i, j);
+
+  B[0] = graphene_vec4_get_x (&vv4);
+  B[1] = graphene_vec4_get_y (&vv4);
+  B[2] = graphene_vec4_get_z (&vv4);
+  B[3] = graphene_vec4_get_w (&vv4);
+
+  singular_value_decomposition (A, 4, 4, U, S, V);
+  singular_value_decomposition_solve (U, S, V, 4, 4, B, x);
+
+  v[ 0] = x[0];
+  v[ 5] = x[1];
+  v[10] = x[2];
+  v[15] = 1;
+
+  graphene_matrix_init_from_float (&s, (const float *)&v);
+  graphene_matrix_multiply (&s, &u, m);
+}
+
+/* Compute a 4x4 matrix m that maps
+ * p1 -> q1
+ * p2 -> q2
+ * p3 -> q3
+ * p4 -> q4
+ *
+ * This is not in general possible, because projective
+ * transforms preserve coplanarity. But in the cases we
+ * care about here, both sets of points are always coplanar.
+ */
+void
+perspective_3d (graphene_point3d_t *p1,
+                graphene_point3d_t *p2,
+                graphene_point3d_t *p3,
+                graphene_point3d_t *p4,
+                graphene_point3d_t *q1,
+                graphene_point3d_t *q2,
+                graphene_point3d_t *q3,
+                graphene_point3d_t *q4,
+                graphene_matrix_t  *m)
+{
+  graphene_matrix_t a, a_inv, b;
+
+  unit_to (p1, p2, p3, p4, &a);
+  unit_to (q1, q2, q3, q4, &b);
+
+  graphene_matrix_inverse (&a, &a_inv);
+  graphene_matrix_multiply (&a_inv, &b, m);
+}
--- a/demos/gtk-demo/four_point_transform.h
+++ b/demos/gtk-demo/four_point_transform.h
@@ -0,0 +1,13 @@
+#pragma once
+
+#include <graphene.h>
+
+void perspective_3d (graphene_point3d_t *p1,
+                     graphene_point3d_t *p2,
+                     graphene_point3d_t *p3,
+                     graphene_point3d_t *p4,
+                     graphene_point3d_t *q1,
+                     graphene_point3d_t *q2,
+                     graphene_point3d_t *q3,
+                     graphene_point3d_t *q4,
+                     graphene_matrix_t  *m);
--- a/demos/gtk-demo/gestures.c
+++ b/demos/gtk-demo/gestures.c
@@ -9,8 +9,8 @@

 static GtkGesture *rotate = NULL;
 static GtkGesture *zoom = NULL;
-static gdouble swipe_x = 0;
-static gdouble swipe_y = 0;
+static double swipe_x = 0;
+static double swipe_y = 0;
 static gboolean long_pressed = FALSE;

 static gboolean
@@ -26,8 +26,8 @@ touchpad_swipe_gesture_begin (GtkGesture       *gesture,

 static void
 swipe_gesture_swept (GtkGestureSwipe *gesture,
-                     gdouble          velocity_x,
-                     gdouble          velocity_y,
+                     double           velocity_x,
+                     double           velocity_y,
                     GtkWidget       *widget)
 {
  swipe_x = velocity_x / 10;
@@ -37,8 +37,8 @@ swipe_gesture_swept (GtkGestureSwipe *gesture,

 static void
 long_press_gesture_pressed (GtkGestureLongPress *gesture,
-                            gdouble              x,
-                            gdouble              y,
+                            double               x,
+                            double               y,
                            GtkWidget           *widget)
 {
  long_pressed = TRUE;
@@ -56,8 +56,8 @@ long_press_gesture_end (GtkGesture       *gesture,

 static void
 rotation_angle_changed (GtkGestureRotate *gesture,
-                        gdouble           angle,
-                        gdouble           delta,
+                        double            angle,
+                        double            delta,
                        GtkWidget        *widget)
 {
  gtk_widget_queue_draw (widget);
@@ -65,7 +65,7 @@ rotation_angle_changed (GtkGestureRotate *gesture,

 static void
 zoom_scale_changed (GtkGestureZoom *gesture,
-                    gdouble         scale,
+                    double          scale,
                    GtkWidget      *widget)
 {
  gtk_widget_queue_draw (widget);
@@ -93,8 +93,8 @@ drawing_area_draw (GtkDrawingArea *area,
    {
      cairo_pattern_t *pat;
      cairo_matrix_t matrix;
-      gdouble angle, scale;
-      gdouble x_center, y_center;
+      double angle, scale;
+      double x_center, y_center;

      gtk_gesture_get_bounding_box_center (GTK_GESTURE (zoom), &x_center, &y_center);

--- a/demos/gtk-demo/glarea-gles.fs.glsl
+++ b/demos/gtk-demo/glarea-gles.fs.glsl
@@ -1,7 +1,7 @@
 precision highp float;

 void main() {
-  float lerpVal = gl_FragCoord.y / 500.0f;
+  float lerpVal = gl_FragCoord.y / 500.0;

-  gl_FragColor = mix(vec4(1.0f, 0.85f, 0.35f, 1.0f), vec4(0.2f, 0.2f, 0.2f, 1.0f), lerpVal);
+  gl_FragColor = mix(vec4(1.0, 0.85, 0.35, 1.0), vec4(0.2, 0.2, 0.2, 1.0), lerpVal);
 }
--- a/demos/gtk-demo/gtkfishbowl.c
+++ b/demos/gtk-demo/gtkfishbowl.c
@@ -98,7 +98,7 @@ gtk_fishbowl_measure (GtkWidget      *widget,
  GHashTableIter iter;
  gpointer key, value;
  GtkFishbowlChild *child;
-  gint child_min, child_nat;
+  int child_min, child_nat;

  *minimum = 0;
  *natural = 0;
--- a/demos/gtk-demo/gtkgears.c
+++ b/demos/gtk-demo/gtkgears.c
@@ -305,7 +305,7 @@ create_gear (GLfloat inner_radius,
    /* Create the 7 points (only x,y coords) used to draw a tooth */
    struct point p[7];

-    /* Calculate needed sin/cos for varius angles */
+    /* Calculate needed sin/cos for various angles */
    sincos(i * 2.0 * G_PI / teeth + da * 0, &s[0], &c[0]);
    sincos(i * 2.0 * M_PI / teeth + da * 1, &s[1], &c[1]);
    sincos(i * 2.0 * M_PI / teeth + da * 2, &s[2], &c[2]);
@@ -800,7 +800,7 @@ gtk_gears_realize (GtkWidget *widget)
  priv->LightSourcePosition_location = glGetUniformLocation(program, "LightSourcePosition");
  priv->MaterialColor_location = glGetUniformLocation(program, "MaterialColor");

-  /* Set the LightSourcePosition uniform which is constant throught the program */
+  /* Set the LightSourcePosition uniform which is constant throughout the program */
  glUniform4fv(priv->LightSourcePosition_location, 1, priv->LightSourcePosition);

  /* make the gears */
--- a/demos/gtk-demo/headerbar.c
+++ b/demos/gtk-demo/headerbar.c
@@ -30,7 +30,6 @@ do_headerbar (GtkWidget *do_widget)
      gtk_window_set_default_size (GTK_WINDOW (window), 600, 400);

      header = gtk_header_bar_new ();
-      gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (header), TRUE);

      button = gtk_button_new ();
      icon = g_themed_icon_new ("mail-send-receive-symbolic");
--- a/demos/gtk-demo/hypertext.c
+++ b/demos/gtk-demo/hypertext.c
@@ -18,7 +18,7 @@ static void
 insert_link (GtkTextBuffer *buffer,
             GtkTextIter   *iter,
             const char    *text,
-             gint           page)
+             int            page)
 {
  GtkTextTag *tag;

@@ -35,7 +35,7 @@ insert_link (GtkTextBuffer *buffer,
 */
 static void
 show_page (GtkTextBuffer *buffer,
-           gint           page)
+           int            page)
 {
  GtkTextIter iter;

@@ -91,7 +91,7 @@ follow_if_link (GtkWidget   *text_view,
  for (tagp = tags;  tagp != NULL;  tagp = tagp->next)
    {
      GtkTextTag *tag = tagp->data;
-      gint page = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (tag), "page"));
+      int page = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (tag), "page"));

      if (page != 0)
        {
@@ -134,14 +134,14 @@ key_pressed (GtkEventController *controller,
 }

 static void set_cursor_if_appropriate (GtkTextView *text_view,
-                                       gint         x,
-                                       gint         y);
+                                       int          x,
+                                       int          y);

 static void
 released_cb (GtkGestureClick *gesture,
             guint            n_press,
-             gdouble          x,
-             gdouble          y,
+             double           x,
+             double           y,
             GtkWidget       *text_view)
 {
  GtkTextIter start, end, iter;
@@ -168,8 +168,8 @@ released_cb (GtkGestureClick *gesture,

 static void
 motion_cb (GtkEventControllerMotion *controller,
-           gdouble                   x,
-           gdouble                   y,
+           double                    x,
+           double                    y,
           GtkTextView              *text_view)
 {
  set_cursor_if_appropriate (text_view, x, y);
@@ -183,8 +183,8 @@ static gboolean hovering_over_link = FALSE;
 */
 static void
 set_cursor_if_appropriate (GtkTextView    *text_view,
-                           gint            x,
-                           gint            y)
+                           int             x,
+                           int             y)
 {
  GSList *tags = NULL, *tagp = NULL;
  GtkTextIter iter;
@@ -196,7 +196,7 @@ set_cursor_if_appropriate (GtkTextView    *text_view,
      for (tagp = tags;  tagp != NULL;  tagp = tagp->next)
        {
          GtkTextTag *tag = tagp->data;
-          gint page = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (tag), "page"));
+          int page = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (tag), "page"));

          if (page != 0)
            {
--- a/demos/gtk-demo/iconscroll.c
+++ b/demos/gtk-demo/iconscroll.c
@@ -75,10 +75,10 @@ populate_icons (void)
 static char *content;
 static gsize content_len;

-extern void fontify (GtkTextBuffer *buffer);
+extern void fontify (const char *format, GtkTextBuffer *buffer);

 static void
-populate_text (gboolean hilight)
+populate_text (gboolean highlight)
 {
  GtkWidget *textview;
  GtkTextBuffer *buffer;
@@ -94,8 +94,8 @@ populate_text (gboolean hilight)
  buffer = gtk_text_buffer_new (NULL);
  gtk_text_buffer_set_text (buffer, content, (int)content_len);

-  if (hilight)
-    fontify (buffer);
+  if (highlight)
+    fontify ("c", buffer);

  textview = gtk_text_view_new ();
  gtk_text_view_set_buffer (GTK_TEXT_VIEW (textview), buffer);
@@ -153,14 +153,20 @@ populate_list (void)
 }

 extern GtkWidget *create_color_grid (void);
+extern GListModel *gtk_color_list_new (guint size);

 static void
 populate_grid (void)
 {
  GtkWidget *list;
+  GtkNoSelection *selection;

  list = create_color_grid ();

+  selection = gtk_no_selection_new (gtk_color_list_new (2097152));
+  gtk_grid_view_set_model (GTK_GRID_VIEW (list), GTK_SELECTION_MODEL (selection));
+  g_object_unref (selection);
+
  hincrement = 0;
  vincrement = 5;

@@ -220,7 +226,7 @@ set_widget_type (int type)
  tick_cb = gtk_widget_add_tick_callback (window, scroll_cb, NULL, NULL);
 }

-void
+G_MODULE_EXPORT void
 iconscroll_next_clicked_cb (GtkButton *source,
                            gpointer   user_data)
 {
@@ -235,7 +241,7 @@ iconscroll_next_clicked_cb (GtkButton *source,
  set_widget_type (new_index);
 }

-void
+G_MODULE_EXPORT void
 iconscroll_prev_clicked_cb (GtkButton *source,
                            gpointer   user_data)
 {
@@ -249,7 +255,7 @@ iconscroll_prev_clicked_cb (GtkButton *source,
  set_widget_type (new_index);
 }

-GtkWidget *
+G_MODULE_EXPORT GtkWidget *
 do_iconscroll (GtkWidget *do_widget)
 {
  if (!window)
--- a/demos/gtk-demo/iconscroll.ui
+++ b/demos/gtk-demo/iconscroll.ui
@@ -6,7 +6,6 @@
    <property name="default-height">500</property>
    <child type="titlebar">
      <object class="GtkHeaderBar">
-        <property name="show-title-buttons">1</property>
        <child>
          <object class="GtkBox">
            <style>
--- a/demos/gtk-demo/iconview.c
+++ b/demos/gtk-demo/iconview.c
@@ -25,7 +25,7 @@ enum


 static GdkPixbuf *file_pixbuf, *folder_pixbuf;
-gchar *parent;
+char *parent;
 GtkWidget *up_button;

 /* Loads the images for the demo and returns whether the operation succeeded */
@@ -47,7 +47,7 @@ static void
 fill_store (GtkListStore *store)
 {
  GDir *dir;
-  const gchar *name;
+  const char *name;
  GtkTreeIter iter;

  /* First clear the store */
@@ -62,7 +62,7 @@ fill_store (GtkListStore *store)
  name = g_dir_read_name (dir);
  while (name != NULL)
    {
-      gchar *path, *display_name;
+      char *path, *display_name;
      gboolean is_dir;

      /* We ignore hidden files that start with a '.' */
@@ -90,14 +90,14 @@ fill_store (GtkListStore *store)
  g_dir_close (dir);
 }

-static gint
+static int
 sort_func (GtkTreeModel *model,
           GtkTreeIter  *a,
           GtkTreeIter  *b,
           gpointer      user_data)
 {
  gboolean is_dir_a, is_dir_b;
-  gchar *name_a, *name_b;
+  char *name_a, *name_b;
  int ret;

  /* We need this function because we want to sort
@@ -158,7 +158,7 @@ item_activated (GtkIconView *icon_view,
                gpointer     user_data)
 {
  GtkListStore *store;
-  gchar *path;
+  char *path;
  GtkTreeIter iter;
  gboolean is_dir;

@@ -192,7 +192,7 @@ up_clicked (GtkButton *item,
            gpointer   user_data)
 {
  GtkListStore *store;
-  gchar *dir_name;
+  char *dir_name;

  store = GTK_LIST_STORE (user_data);

--- a/demos/gtk-demo/iconview_edit.c
+++ b/demos/gtk-demo/iconview_edit.c
@@ -19,8 +19,8 @@ static void
 fill_store (GtkListStore *store)
 {
  GtkTreeIter iter;
-  const gchar *text[] = { "Red", "Green", "Blue", "Yellow" };
-  gint i;
+  const char *text[] = { "Red", "Green", "Blue", "Yellow" };
+  int i;

  /* First clear the store */
  gtk_list_store_clear (store);
@@ -49,7 +49,7 @@ set_cell_color (GtkCellLayout   *cell_layout,
                GtkTreeIter     *iter,
                gpointer         data)
 {
-  gchar *text;
+  char *text;
  GdkRGBA color;
  guint32 pixel = 0;
  GdkPixbuf *pixbuf;
@@ -60,10 +60,10 @@ set_cell_color (GtkCellLayout   *cell_layout,

  if (gdk_rgba_parse (&color, text))
    pixel =
-      ((gint)(color.red * 255)) << 24 |
-      ((gint)(color.green * 255)) << 16 |
-      ((gint)(color.blue  * 255)) << 8 |
-      ((gint)(color.alpha * 255));
+      ((int)(color.red * 255)) << 24 |
+      ((int)(color.green * 255)) << 16 |
+      ((int)(color.blue  * 255)) << 8 |
+      ((int)(color.alpha * 255));

  g_free (text);

@@ -77,8 +77,8 @@ set_cell_color (GtkCellLayout   *cell_layout,

 static void
 edited (GtkCellRendererText *cell,
-        gchar               *path_string,
-        gchar               *text,
+        char                *path_string,
+        char                *text,
        gpointer             data)
 {
  GtkTreeModel *model;
--- a/demos/gtk-demo/images.c
+++ b/demos/gtk-demo/images.c
@@ -43,10 +43,10 @@ progressive_prepared_callback (GdkPixbufLoader *loader,

 static void
 progressive_updated_callback (GdkPixbufLoader *loader,
-                              gint                 x,
-                              gint                 y,
-                              gint                 width,
-                              gint                 height,
+                              int                  x,
+                              int                  y,
+                              int                  width,
+                              int                  height,
                              gpointer     data)
 {
  GtkWidget *picture;
@@ -58,7 +58,7 @@ progressive_updated_callback (GdkPixbufLoader *loader,
  gtk_picture_set_pixbuf (GTK_PICTURE (picture), pixbuf);
 }

-static gint
+static int
 progressive_timeout (gpointer data)
 {
  GtkWidget *picture;
@@ -240,11 +240,11 @@ progressive_timeout (gpointer data)

      pixbuf_loader = gdk_pixbuf_loader_new ();

-      g_signal_connect (pixbuf_loader, "area-prepared",
-                        G_CALLBACK (progressive_prepared_callback), picture);
+      g_signal_connect_object (pixbuf_loader, "area-prepared",
+                               G_CALLBACK (progressive_prepared_callback), picture, 0);

-      g_signal_connect (pixbuf_loader, "area-updated",
-                        G_CALLBACK (progressive_updated_callback), picture);
+      g_signal_connect_object (pixbuf_loader, "area-updated",
+                               G_CALLBACK (progressive_updated_callback), picture, 0);
    }

  /* leave timeout installed */
@@ -261,14 +261,16 @@ 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 (150, progressive_timeout, picture);
+  load_timeout = g_timeout_add (1500, progressive_timeout, picture);
  g_source_set_name_by_id (load_timeout, "[gtk] progressive_timeout");
 }

 static void
-cleanup_callback (GObject   *object,
-                  gpointer   data)
+cleanup_callback (gpointer  data,
+                  GObject  *former_object)
 {
+  *(gpointer**)data = NULL;
+
  if (load_timeout)
    {
      g_source_remove (load_timeout);
@@ -327,10 +329,7 @@ do_images (GtkWidget *do_widget)
      gtk_window_set_display (GTK_WINDOW (window),
                              gtk_widget_get_display (do_widget));
      gtk_window_set_title (GTK_WINDOW (window), "Images");
-      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
-
-      g_signal_connect (window, "destroy",
-                        G_CALLBACK (cleanup_callback), NULL);
+      g_object_weak_ref (G_OBJECT (window), cleanup_callback, &window);

      base_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
      gtk_widget_set_margin_start (base_vbox, 16);
--- a/demos/gtk-demo/infobar.c
+++ b/demos/gtk-demo/infobar.c
@@ -8,7 +8,7 @@

 static void
 on_bar_response (GtkInfoBar *info_bar,
-                 gint        response_id,
+                 int         response_id,
                 gpointer    user_data)
 {
  GtkWidget *dialog;
--- a/demos/gtk-demo/layoutmanager.c
+++ b/demos/gtk-demo/layoutmanager.c
@@ -0,0 +1,62 @@
+/* Layout Manager/Transition
+ *
+ * This demo shows a simple example of a custom layout manager
+ * and a widget using it. The layout manager places the children
+ * of the widget in a grid or a circle.
+ *
+ * The widget is animating the transition between the two layouts.
+ *
+ * Click to start the transition.
+ */
+
+#include <gtk/gtk.h>
+
+#include "demowidget.h"
+#include "demochild.h"
+
+
+GtkWidget *
+do_layoutmanager (GtkWidget *parent)
+{
+  static GtkWidget *window = NULL;
+
+  if (!window)
+    {
+      GtkWidget *widget;
+      GtkWidget *child;
+      const char *color[] = {
+        "red", "orange", "yellow", "green",
+        "blue", "grey", "magenta", "lime",
+        "yellow", "firebrick", "aqua", "purple",
+        "tomato", "pink", "thistle", "maroon"
+      };
+      int i;
+
+      window = gtk_window_new ();
+      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);
+
+      widget = demo_widget_new ();
+
+      for (i = 0; i < 16; i++)
+        {
+          child = demo_child_new (color[i]);
+          gtk_widget_set_margin_start (child, 4);
+          gtk_widget_set_margin_end (child, 4);
+          gtk_widget_set_margin_top (child, 4);
+          gtk_widget_set_margin_bottom (child, 4);
+          demo_widget_add_child (DEMO_WIDGET (widget), child);
+        }
+
+      gtk_window_set_child (GTK_WINDOW (window), widget);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_window_destroy (GTK_WINDOW (window));
+
+  return window;
+
+}
--- a/demos/gtk-demo/layoutmanager2.c
+++ b/demos/gtk-demo/layoutmanager2.c
@@ -0,0 +1,198 @@
+/* Layout Manager/Transformation
+ *
+ * This demo shows how to use transforms in a nontrivial
+ * way with a custom layout manager. The layout manager places
+ * icons on a sphere that can be rotated using arrow keys.
+ */
+
+#include <gtk/gtk.h>
+
+#include "demo2widget.h"
+#include "demo2layout.h"
+#include "demochild.h"
+
+GtkWidget *
+do_layoutmanager2 (GtkWidget *parent)
+{
+  static GtkWidget *window = NULL;
+
+  if (!window)
+    {
+      GtkWidget *widget;
+      GtkWidget *child;
+      const char *name[] = {
+        "action-unavailable-symbolic",
+        "address-book-new-symbolic",
+        "application-exit-symbolic",
+        "appointment-new-symbolic",
+        "bookmark-new-symbolic",
+        "call-start-symbolic",
+        "call-stop-symbolic",
+        "camera-switch-symbolic",
+        "chat-message-new-symbolic",
+        "color-select-symbolic",
+        "contact-new-symbolic",
+        "document-edit-symbolic",
+        "document-new-symbolic",
+        "document-open-recent-symbolic",
+        "document-open-symbolic",
+        "document-page-setup-symbolic",
+        "document-print-preview-symbolic",
+        "document-print-symbolic",
+        "document-properties-symbolic",
+        "document-revert-symbolic-rtl",
+        "document-revert-symbolic",
+        "document-save-as-symbolic",
+        "document-save-symbolic",
+        "document-send-symbolic",
+        "edit-clear-all-symbolic",
+        "edit-clear-symbolic-rtl",
+        "edit-clear-symbolic",
+        "edit-copy-symbolic",
+        "edit-cut-symbolic",
+        "edit-delete-symbolic",
+        "edit-find-replace-symbolic",
+        "edit-find-symbolic",
+        "edit-paste-symbolic",
+        "edit-redo-symbolic-rtl",
+        "edit-redo-symbolic",
+        "edit-select-all-symbolic",
+        "edit-select-symbolic",
+        "edit-undo-symbolic-rtl",
+        "edit-undo-symbolic",
+        "error-correct-symbolic",
+        "find-location-symbolic",
+        "folder-new-symbolic",
+        "font-select-symbolic",
+        "format-indent-less-symbolic-rtl",
+        "format-indent-less-symbolic",
+        "format-indent-more-symbolic-rtl",
+        "format-indent-more-symbolic",
+        "format-justify-center-symbolic",
+        "format-justify-fill-symbolic",
+        "format-justify-left-symbolic",
+        "format-justify-right-symbolic",
+        "format-text-bold-symbolic",
+        "format-text-direction-symbolic-rtl",
+        "format-text-direction-symbolic",
+        "format-text-italic-symbolic",
+        "format-text-strikethrough-symbolic",
+        "format-text-underline-symbolic",
+        "go-bottom-symbolic",
+        "go-down-symbolic",
+        "go-first-symbolic-rtl",
+        "go-first-symbolic",
+        "go-home-symbolic",
+        "go-jump-symbolic-rtl",
+        "go-jump-symbolic",
+        "go-last-symbolic-rtl",
+        "go-last-symbolic",
+        "go-next-symbolic-rtl",
+        "go-next-symbolic",
+        "go-previous-symbolic-rtl",
+        "go-previous-symbolic",
+        "go-top-symbolic",
+        "go-up-symbolic",
+        "help-about-symbolic",
+        "insert-image-symbolic",
+        "insert-link-symbolic",
+        "insert-object-symbolic",
+        "insert-text-symbolic",
+        "list-add-symbolic",
+        "list-remove-all-symbolic",
+        "list-remove-symbolic",
+        "mail-forward-symbolic",
+        "mail-mark-important-symbolic",
+        "mail-mark-junk-symbolic",
+        "mail-mark-notjunk-symbolic",
+        "mail-message-new-symbolic",
+        "mail-reply-all-symbolic",
+        "mail-reply-sender-symbolic",
+        "mail-send-receive-symbolic",
+        "mail-send-symbolic",
+        "mark-location-symbolic",
+        "media-eject-symbolic",
+        "media-playback-pause-symbolic",
+        "media-playback-start-symbolic",
+        "media-playback-stop-symbolic",
+        "media-record-symbolic",
+        "media-seek-backward-symbolic",
+        "media-seek-forward-symbolic",
+        "media-skip-backward-symbolic",
+        "media-skip-forward-symbolic",
+        "media-view-subtitles-symbolic",
+        "object-flip-horizontal-symbolic",
+        "object-flip-vertical-symbolic",
+        "object-rotate-left-symbolic",
+        "object-rotate-right-symbolic",
+        "object-select-symbolic",
+        "open-menu-symbolic",
+        "process-stop-symbolic",
+        "send-to-symbolic",
+        "sidebar-hide-symbolic",
+        "sidebar-show-symbolic",
+        "star-new-symbolic",
+        "system-log-out-symbolic",
+        "system-reboot-symbolic",
+        "system-run-symbolic",
+        "system-search-symbolic",
+        "system-shutdown-symbolic",
+        "system-switch-user-symbolic",
+        "tab-new-symbolic",
+        "tools-check-spelling-symbolic",
+        "value-decrease-symbolic",
+        "value-increase-symbolic",
+        "view-app-grid-symbolic",
+        "view-conceal-symbolic",
+        "view-continuous-symbolic",
+        "view-dual-symbolic",
+        "view-fullscreen-symbolic",
+        "view-grid-symbolic",
+        "view-list-bullet-symbolic",
+        "view-list-ordered-symbolic",
+        "view-list-symbolic",
+        "view-mirror-symbolic",
+        "view-more-horizontal-symbolic",
+        "view-more-symbolic",
+        "view-paged-symbolic",
+        "view-pin-symbolic",
+        "view-refresh-symbolic",
+        "view-restore-symbolic",
+        "view-reveal-symbolic",
+        "view-sort-ascending-symbolic",
+        "view-sort-descending-symbolic",
+        "zoom-fit-best-symbolic",
+        "zoom-in-symbolic",
+        "zoom-original-symbolic",
+        "zoom-out-symbolic",
+      };
+      int i;
+
+      window = gtk_window_new ();
+      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);
+
+      widget = demo2_widget_new ();
+
+      for (i = 0; i < 18 * 36; i++)
+        {
+          child = gtk_image_new_from_icon_name (name[i % G_N_ELEMENTS (name)]);
+          gtk_widget_set_margin_start (child, 4);
+          gtk_widget_set_margin_end (child, 4);
+          gtk_widget_set_margin_top (child, 4);
+          gtk_widget_set_margin_bottom (child, 4);
+          demo2_widget_add_child (DEMO2_WIDGET (widget), child);
+        }
+
+      gtk_window_set_child (GTK_WINDOW (window), widget);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_window_destroy (GTK_WINDOW (window));
+
+  return window;
+
+}
--- a/demos/gtk-demo/links.c
+++ b/demos/gtk-demo/links.c
@@ -9,7 +9,7 @@

 static void
 response_cb (GtkWidget *dialog,
-             gint       response_id,
+             int        response_id,
             gpointer   data)
 {
  gtk_window_destroy (GTK_WINDOW (dialog));
@@ -17,7 +17,7 @@ response_cb (GtkWidget *dialog,

 static gboolean
 activate_link (GtkWidget   *label,
-               const gchar *uri,
+               const char *uri,
               gpointer     data)
 {
  if (g_strcmp0 (uri, "keynav") == 0)
--- a/demos/gtk-demo/list_store.c
+++ b/demos/gtk-demo/list_store.c
@@ -47,7 +47,7 @@ static Bug bugs[] =
  { FALSE, 56925, "Normal",     "Gtkcalender size" },
  { FALSE, 56221, "Normal",     "Selectable label needs right-click copy menu" },
  { TRUE,  50939, "Normal",     "Add shift clicking to GtkTextView" },
-  { FALSE, 6112,  "Enhancement","netscape-like collapsable toolbars" },
+  { FALSE, 6112,  "Enhancement","netscape-like collapsible toolbars" },
  { FALSE, 1,     "Normal",     "First bug :=)" },
 };

@@ -81,7 +81,7 @@ spinner_timeout (gpointer data)
 static GtkTreeModel *
 create_model (void)
 {
-  gint i = 0;
+  int i = 0;
  GtkListStore *store;
  GtkTreeIter iter;

--- a/demos/gtk-demo/listbox.c
+++ b/demos/gtk-demo/listbox.c
@@ -1,4 +1,4 @@
-/* List Box
+/* List Box/Complex list
 *
 * GtkListBox allows lists with complicated layouts, using
 * regular widgets supporting sorting and filtering.
--- a/demos/gtk-demo/listbox.ui
+++ b/demos/gtk-demo/listbox.ui
@@ -26,8 +26,8 @@
            <property name="margin-end">8</property>
            <property name="icon-name">image-missing</property>
            <layout>
-              <property name="left-attach">0</property>
-              <property name="top-attach">0</property>
+              <property name="column">0</property>
+              <property name="row">0</property>
              <property name="row-span">5</property>
            </layout>
          </object>
@@ -71,8 +71,8 @@
              </object>
            </child>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">0</property>
+              <property name="column">1</property>
+              <property name="row">0</property>
            </layout>
          </object>
        </child>
@@ -84,12 +84,9 @@
            <property name="yalign">0</property>
            <property name="label" translatable="0">Message</property>
            <property name="wrap">1</property>
-            <accessibility>
-              <role type="static"/>
-            </accessibility>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">1</property>
+              <property name="column">1</property>
+              <property name="row">1</property>
            </layout>
          </object>
        </child>
@@ -114,8 +111,8 @@
              </object>
            </child>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">2</property>
+              <property name="column">1</property>
+              <property name="row">2</property>
            </layout>
          </object>
        </child>
@@ -168,8 +165,8 @@
              </object>
            </child>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">3</property>
+              <property name="column">1</property>
+              <property name="row">3</property>
            </layout>
          </object>
        </child>
@@ -184,27 +181,17 @@
                    <property name="margin-bottom">2</property>
                    <property name="spacing">8</property>
                    <child>
-                      <object class="GtkFrame" id="frame1">
-                        <child>
-                          <object class="GtkLabel" id="n_reshares_label">
-                            <property name="label" translatable="0">&lt;b&gt;2&lt;/b&gt;
+                      <object class="GtkLabel" id="n_reshares_label">
+                        <property name="label" translatable="0">&lt;b&gt;2&lt;/b&gt;
 Reshares</property>
-                            <property name="use-markup">1</property>
-                          </object>
-                        </child>
-                        <child type="label_item"/>
+                        <property name="use-markup">1</property>
                      </object>
                    </child>
                    <child>
-                      <object class="GtkFrame" id="frame2">
-                        <child>
-                          <object class="GtkLabel" id="n_favorites_label">
-                            <property name="label" translatable="0">&lt;b&gt;2&lt;/b&gt;
+                      <object class="GtkLabel" id="n_favorites_label">
+                        <property name="label" translatable="0">&lt;b&gt;2&lt;/b&gt;
 FAVORITES</property>
-                            <property name="use-markup">1</property>
-                          </object>
-                        </child>
-                        <child type="label_item"/>
+                        <property name="use-markup">1</property>
                      </object>
                    </child>
                  </object>
@@ -234,8 +221,8 @@ FAVORITES</property>
              </object>
            </child>
            <layout>
-              <property name="left-attach">1</property>
-              <property name="top-attach">4</property>
+              <property name="column">1</property>
+              <property name="row">4</property>
            </layout>
          </object>
        </child>
--- a/demos/gtk-demo/listbox2.c
+++ b/demos/gtk-demo/listbox2.c
@@ -0,0 +1,71 @@
+/* List Box/Controls
+ *
+ * GtkListBox is well-suited for creating “button strips” — lists of
+ * controls for use in preference dialogs or settings panels. To create
+ * this style of list, use the .rich-list style class.
+ */
+
+#include <gtk/gtk.h>
+
+static GtkWidget *window;
+static GtkWidget *switch_widget;
+static GtkWidget *check;
+static GtkWidget *image;
+
+static void
+row_activated (GtkListBox    *list,
+               GtkListBoxRow *row)
+{
+  if (gtk_widget_is_ancestor (switch_widget, GTK_WIDGET (row)))
+    {
+      gtk_switch_set_active (GTK_SWITCH (switch_widget),
+                             !gtk_switch_get_active (GTK_SWITCH (switch_widget)));
+    }
+  else if (gtk_widget_is_ancestor (check, GTK_WIDGET (row)))
+    {
+      gtk_check_button_set_active (GTK_CHECK_BUTTON (check),
+                                   !gtk_check_button_get_active (GTK_CHECK_BUTTON (check)));
+    }
+  else if (gtk_widget_is_ancestor (image, GTK_WIDGET (row)))
+    {
+      gtk_widget_set_opacity (image,
+                              1.0 - gtk_widget_get_opacity (image));
+    }
+}
+
+GtkWidget *
+do_listbox2 (GtkWidget *do_widget)
+{
+  if (!window)
+    {
+      GtkBuilderScope *scope;
+      GtkBuilder *builder;
+
+      scope = gtk_builder_cscope_new ();
+      gtk_builder_cscope_add_callback_symbol (GTK_BUILDER_CSCOPE (scope),
+                                              "row_activated", G_CALLBACK (row_activated));
+      builder = gtk_builder_new ();
+      gtk_builder_set_scope (builder, scope);
+
+      gtk_builder_add_from_resource (builder, "/listbox2/listbox2.ui", NULL);
+
+      window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
+      gtk_window_set_display (GTK_WINDOW (window),
+                              gtk_widget_get_display (do_widget));
+      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
+
+      switch_widget = GTK_WIDGET (gtk_builder_get_object (builder, "switch"));
+      check = GTK_WIDGET (gtk_builder_get_object (builder, "check"));
+      image = GTK_WIDGET (gtk_builder_get_object (builder, "image"));
+
+      g_object_unref (builder);
+      g_object_unref (scope);
+    }
+
+  if (!gtk_widget_get_visible (window))
+    gtk_widget_show (window);
+  else
+    gtk_window_destroy (GTK_WINDOW (window));
+
+  return window;
+}
--- a/demos/gtk-demo/listbox2.ui
+++ b/demos/gtk-demo/listbox2.ui
@@ -0,0 +1,298 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <object class="GtkWindow" id="window">
+    <property name="title" translatable="yes">List Box — Controls</property>
+    <property name="default-height">400</property>
+    <child>
+      <object class="GtkScrolledWindow">
+        <property name="hscrollbar-policy">never</property>
+        <property name="min-content-height">200</property>
+        <property name="hexpand">0</property>
+        <property name="vexpand">1</property>
+        <child>
+          <object class="GtkViewport">
+            <property name="scroll-to-focus">1</property>
+            <child>
+              <object class="GtkBox">
+                <property name="orientation">vertical</property>
+                <property name="margin-start">60</property>
+                <property name="margin-end">60</property>
+                <property name="margin-top">30</property>
+                <property name="margin-bottom">30</property>
+                <child>
+                  <object class="GtkLabel">
+                    <property name="label">Group 1</property>
+                    <property name="xalign">0</property>
+                    <property name="margin-bottom">10</property>
+                    <style>
+                      <class name="title-2"/>
+                    </style>
+                  </object>
+                </child>
+                <child>
+                  <object class="GtkFrame">
+                    <child>
+                      <object class="GtkListBox">
+                        <property name="selection-mode">none</property>
+                        <property name="show-separators">1</property>
+                        <signal name="row-activated" handler="row_activated"/>
+                        <style>
+                          <class name="rich-list"/>
+                        </style>
+
+                        <child>
+                          <object class="GtkListBoxRow">
+                            <child>
+                              <object class="GtkBox">
+                                <child>
+                                  <object class="GtkLabel" id="switch_label">
+                                    <property name="label" translatable="yes">Switch</property>
+                                    <property name="xalign">0</property>
+                                    <property name="halign">start</property>
+                                    <property name="valign">center</property>
+                                    <property name="hexpand">1</property>
+                                  </object>
+                                </child>
+                                <child>
+                                  <object class="GtkSwitch" id="switch">
+                                    <property name="halign">end</property>
+                                    <property name="valign">center</property>
+                                  </object>
+                                </child>
+                              </object>
+                            </child>
+                          </object>
+                        </child>
+
+                        <child>
+                          <object class="GtkListBoxRow">
+                            <child>
+                              <object class="GtkBox">
+                                <child>
+                                  <object class="GtkLabel" id="check_label">
+                                    <property name="label" translatable="yes">Check</property>
+                                    <property name="xalign">0</property>
+                                    <property name="halign">start</property>
+                                    <property name="valign">center</property>
+                                    <property name="hexpand">1</property>
+                                  </object>
+                                </child>
+                                <child>
+                                  <object class="GtkCheckButton" id="check">
+                                    <property name="halign">end</property>
+                                    <property name="valign">center</property>
+                                    <property name="margin-start">10</property>
+                                    <property name="margin-end">10</property>
+                                    <property name="active">1</property>
+                                  </object>
+                                </child>
+                              </object>
+                            </child>
+                          </object>
+                        </child>
+
+                        <child>
+                          <object class="GtkListBoxRow">
+                            <child>
+                              <object class="GtkBox">
+                                <child>
+                                  <object class="GtkLabel" id="image_label">
+                                    <property name="label" translatable="yes">Click here!</property>
+                                    <property name="xalign">0</property>
+                                    <property name="halign">start</property>
+                                    <property name="valign">center</property>
+                                    <property name="hexpand">1</property>
+                                  </object>
+                                </child>
+                                <child>
+                                  <object class="GtkImage" id="image">
+                                    <property name="icon-name">object-select-symbolic</property>
+                                    <property name="halign">end</property>
+                                    <property name="valign">center</property>
+                                    <property name="margin-start">10</property>
+                                    <property name="margin-end">10</property>
+                                    <property name="opacity">0</property>
+                                  </object>
+                                </child>
+                              </object>
+                            </child>
+                          </object>
+                        </child>
+                      </object>
+                    </child>
+                  </object>
+                </child>
+
+                <child>
+                  <object class="GtkLabel">
+                    <property name="margin-top">30</property>
+                    <property name="margin-bottom">10</property>
+                    <property name="label">Group 2</property>
+                    <property name="xalign">0</property>
+                    <style>
+                      <class name="title-2"/>
+                    </style>
+                  </object>
+                </child>
+                <child>
+                  <object class="GtkFrame">
+                    <child>
+                      <object class="GtkListBox">
+                        <property name="selection-mode">none</property>
+                        <property name="show-separators">1</property>
+                        <style>
+                          <class name="rich-list"/>
+                        </style>
+
+                        <child>
+                          <object class="GtkListBoxRow">
+                            <property name="activatable">0</property>
+                            <child>
+                              <object class="GtkBox">
+                                <child>
+                                  <object class="GtkLabel" id="scale_label">
+                                    <property name="label" translatable="yes">Scale</property>
+                                    <property name="xalign">0</property>
+                                    <property name="halign">start</property>
+                                    <property name="valign">center</property>
+                                    <property name="hexpand">1</property>
+                                  </object>
+                                </child>
+                                <child>
+                                  <object class="GtkScale">
+                                    <property name="halign">end</property>
+                                    <property name="valign">center</property>
+                                    <property name="draw-value">0</property>
+                                    <property name="width-request">150</property>
+                                    <property name="adjustment">
+                                      <object class="GtkAdjustment">
+                                        <property name="upper">100</property>
+                                        <property name="value">50</property>
+                                        <property name="step-increment">1</property>
+                                        <property name="page-increment">10</property>
+                                      </object>
+                                    </property>
+                                  </object>
+                                </child>
+                              </object>
+                            </child>
+                          </object>
+                        </child>
+
+                        <child>
+                          <object class="GtkListBoxRow">
+                            <property name="activatable">0</property>
+                            <child>
+                              <object class="GtkBox">
+                                <child>
+                                  <object class="GtkLabel" id="spin_label">
+                                    <property name="label" translatable="yes">Spinbutton</property>
+                                    <property name="xalign">0</property>
+                                    <property name="halign">start</property>
+                                    <property name="valign">center</property>
+                                    <property name="hexpand">1</property>
+                                  </object>
+                                </child>
+                                <child>
+                                  <object class="GtkSpinButton">
+                                    <property name="halign">end</property>
+                                    <property name="valign">center</property>
+                                    <property name="adjustment">
+                                      <object class="GtkAdjustment">
+                                        <property name="upper">100</property>
+                                        <property name="value">50</property>
+                                        <property name="step-increment">1</property>
+                                        <property name="page-increment">10</property>
+                                      </object>
+                                    </property>
+                                  </object>
+                                </child>
+                              </object>
+                            </child>
+                          </object>
+                        </child>
+                        <child>
+                          <object class="GtkListBoxRow">
+                            <property name="activatable">0</property>
+                            <child>
+                              <object class="GtkBox">
+                                <child>
+                                  <object class="GtkLabel" id="dropdown_label">
+                                    <property name="label" translatable="yes">Dropdown</property>
+                                    <property name="xalign">0</property>
+                                    <property name="halign">start</property>
+                                    <property name="valign">center</property>
+                                    <property name="hexpand">1</property>
+                                  </object>
+                                </child>
+                                <child>
+                                  <object class="GtkDropDown">
+                                    <property name="halign">end</property>
+                                    <property name="valign">center</property>
+                                    <property name="model">
+                                      <object class="GtkStringList">
+                                        <items>
+                                          <item>Choice 1</item>
+                                          <item>Choice 2</item>
+                                          <item>Choice 3</item>
+                                          <item>Choice 4</item>
+                                        </items>
+                                      </object>
+                                    </property>
+                                  </object>
+                                </child>
+                              </object>
+                            </child>
+                          </object>
+                        </child>
+
+                        <child>
+                          <object class="GtkListBoxRow">
+                            <property name="activatable">0</property>
+                            <child>
+                              <object class="GtkBox">
+                                <child>
+                                  <object class="GtkLabel" id="entry_label">
+                                    <property name="label" translatable="yes">Entry</property>
+                                    <property name="xalign">0</property>
+                                    <property name="halign">start</property>
+                                    <property name="valign">center</property>
+                                    <property name="hexpand">1</property>
+                                  </object>
+                                </child>
+                                <child>
+                                  <object class="GtkEntry">
+                                    <property name="halign">end</property>
+                                    <property name="valign">center</property>
+                                    <property name="placeholder-text">Type here…</property>
+                                  </object>
+                                </child>
+                              </object>
+                            </child>
+                          </object>
+                        </child>
+
+                      </object>
+                    </child>
+                  </object>
+                </child>
+              </object>
+            </child>
+          </object>
+        </child>
+      </object>
+    </child>
+  </object>
+  <object class="GtkSizeGroup">
+    <property name="mode">horizontal</property>
+    <widgets>
+      <widget name="switch_label"/>
+      <widget name="check_label"/>
+      <widget name="image_label"/>
+      <widget name="scale_label"/>
+      <widget name="spin_label"/>
+      <widget name="dropdown_label"/>
+      <widget name="entry_label"/>
+    </widgets>
+  </object>
+</interface>
--- a/demos/gtk-demo/listview_applauncher.c
+++ b/demos/gtk-demo/listview_applauncher.c
@@ -104,7 +104,7 @@ activate_cb (GtkListView  *list,
  GdkAppLaunchContext *context;
  GError *error = NULL;

-  app_info = g_list_model_get_item (gtk_list_view_get_model (list), position);
+  app_info = g_list_model_get_item (G_LIST_MODEL (gtk_list_view_get_model (list)), position);

  /* Prepare the context for launching the application and launch it. This
   * code is explained in detail in the documentation for #GdkAppLaunchContext
@@ -166,14 +166,6 @@ do_listview_applauncher (GtkWidget *do_widget)
      g_signal_connect (factory, "setup", G_CALLBACK (setup_listitem_cb), NULL);
      g_signal_connect (factory, "bind", G_CALLBACK (bind_listitem_cb), NULL);

-      /* Create the list widget here.
-       */
-      list = gtk_list_view_new_with_factory (factory);
-      /* We connect the activate signal here. It's the function we defined
-       * above for launching the selected application.
-       */
-      g_signal_connect (list, "activate", G_CALLBACK (activate_cb), NULL);
-
      /* And of course we need to set the data model. Here we call the function
       * we wrote above that gives us the list of applications. Then we set
       * it on the list widget.
@@ -181,8 +173,15 @@ do_listview_applauncher (GtkWidget *do_widget)
       * to create as many listitems as it needs to show itself to the user.
       */
      model = create_application_list ();
-      gtk_list_view_set_model (GTK_LIST_VIEW (list), model);
-      g_object_unref (model);
+
+      /* Create the list widget here.
+       */
+      list = gtk_list_view_new (GTK_SELECTION_MODEL (gtk_single_selection_new (model)), factory);
+
+      /* We connect the activate signal here. It's the function we defined
+       * above for launching the selected application.
+       */
+      g_signal_connect (list, "activate", G_CALLBACK (activate_cb), NULL);

      /* List widgets should always be contained in a #GtkScrolledWindow,
       * because otherwise they might get too large or they might not
--- a/demos/gtk-demo/listview_clocks.c
+++ b/demos/gtk-demo/listview_clocks.c
@@ -101,7 +101,7 @@ gtk_clock_snapshot (GdkPaintable *paintable,
                              (GdkRGBA [4]) { BLACK, BLACK, BLACK, BLACK });

  /* Next, draw the hour hand.
-   * We do this using tranforms again: Instead of computing where the angle
+   * We do this using transforms again: Instead of computing where the angle
   * points to, we just rotate everything and then draw the hand as if it
   * was :00. We don't even need to care about am/pm here because rotations
   * just work.
@@ -462,8 +462,7 @@ do_listview_clocks (GtkWidget *do_widget)
    {
      GtkWidget *gridview, *sw;
      GtkListItemFactory *factory;
-      GListModel *model;
-      GtkNoSelection *selection;
+      GtkSelectionModel *model;

      /* This is the normal window setup code every demo does */
      window = gtk_window_new ();
@@ -485,16 +484,12 @@ do_listview_clocks (GtkWidget *do_widget)
      factory = gtk_signal_list_item_factory_new ();
      g_signal_connect (factory, "setup", G_CALLBACK (setup_listitem_cb), NULL);

-      gridview = gtk_grid_view_new_with_factory (factory);
+      model = GTK_SELECTION_MODEL (gtk_no_selection_new (create_clocks_model ()));
+      gridview = gtk_grid_view_new (model, factory);
      gtk_scrollable_set_hscroll_policy (GTK_SCROLLABLE (gridview), GTK_SCROLL_NATURAL);
      gtk_scrollable_set_vscroll_policy (GTK_SCROLLABLE (gridview), GTK_SCROLL_NATURAL);

-      model = create_clocks_model ();
-      selection = gtk_no_selection_new (model);
-      gtk_grid_view_set_model (GTK_GRID_VIEW (gridview), G_LIST_MODEL (selection));
      gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), gridview);
-      g_object_unref (selection);
-      g_object_unref (model);
    }

  if (!gtk_widget_get_visible (window))
--- a/demos/gtk-demo/listview_colors.c
+++ b/demos/gtk-demo/listview_colors.c
@@ -79,7 +79,7 @@ gtk_color_paintable_init (GdkPaintableInterface *iface)

 /*
 * Finally, we define the type. The important part is adding the paintable
- * interface, so GTK knows that this object can indeed be drawm.
+ * interface, so GTK knows that this object can indeed be drawn.
 */
 G_DEFINE_TYPE_WITH_CODE (GtkColor, gtk_color, G_TYPE_OBJECT,
                         G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
@@ -89,14 +89,14 @@ static GParamSpec *color_properties[N_COLOR_PROPS] = { NULL, };

 static void
 rgb_to_hsv (GdkRGBA *rgba,
-            gdouble *h_out,
-            gdouble *s_out,
-            gdouble *v_out)
+            double  *h_out,
+            double  *s_out,
+            double  *v_out)
 {
-  gdouble red, green, blue;
-  gdouble h, s, v;
-  gdouble min, max;
-  gdouble delta;
+  double red, green, blue;
+  double h, s, v;
+  double min, max;
+  double delta;

  red = rgba->red;
  green = rgba->green;
@@ -226,7 +226,7 @@ gtk_color_set_property (GObject      *object,
      break;

    case PROP_COLOR:
-      self->color = *(GdkRGBA *) g_value_dup_boxed (value);
+      self->color = *(GdkRGBA *) g_value_get_boxed (value);
      rgb_to_hsv (&self->color, &h, &s, &v);
      self->h = round (360 * h);
      self->s = round (100 * s);
@@ -523,7 +523,7 @@ gtk_color_list_init (GtkColorList *self)
  g_bytes_unref (data);
 }

-static GListModel *
+GListModel *
 gtk_color_list_new (guint size)
 {
  return g_object_new (GTK_TYPE_COLOR_LIST,
@@ -627,6 +627,23 @@ setup_listitem_cb (GtkListItemFactory *factory,
  gtk_expression_unref (color_expression);
 }

+static void
+setup_selection_listitem_cb (GtkListItemFactory *factory,
+                             GtkListItem        *list_item)
+{
+  GtkWidget *picture;
+  GtkExpression *color_expression, *expression;
+
+  expression = gtk_constant_expression_new (GTK_TYPE_LIST_ITEM, list_item);
+  color_expression = gtk_property_expression_new (GTK_TYPE_LIST_ITEM, expression, "item");
+
+  picture = gtk_picture_new ();
+  gtk_widget_set_size_request (picture, 8, 8);
+  gtk_expression_bind (color_expression, picture, "paintable", NULL);
+
+  gtk_list_item_set_child (list_item, picture);
+}
+
 static void
 set_title (gpointer    item,
           const char *title)
@@ -645,9 +662,8 @@ create_color_grid (void)
 {
  GtkWidget *gridview;
  GtkListItemFactory *factory;
-  GListModel *model, *selection;

-  gridview = gtk_grid_view_new ();
+  gridview = gtk_grid_view_new (NULL, NULL);
  gtk_scrollable_set_hscroll_policy (GTK_SCROLLABLE (gridview), GTK_SCROLL_NATURAL);
  gtk_scrollable_set_vscroll_policy (GTK_SCROLLABLE (gridview), GTK_SCROLL_NATURAL);

@@ -659,13 +675,6 @@ create_color_grid (void)
  gtk_grid_view_set_max_columns (GTK_GRID_VIEW (gridview), 24);
  gtk_grid_view_set_enable_rubberband (GTK_GRID_VIEW (gridview), TRUE);

-  model = G_LIST_MODEL (gtk_sort_list_model_new (gtk_color_list_new (0), NULL));
-
-  selection = G_LIST_MODEL (gtk_multi_selection_new (model));
-  gtk_grid_view_set_model (GTK_GRID_VIEW (gridview), selection);
-  g_object_unref (selection);
-  g_object_unref (model);
-
  return gridview;
 }

@@ -777,6 +786,63 @@ bind_number_item (GtkSignalListItemFactory *factory,
  g_free (string);
 }

+static void
+update_selection_count (GListModel *model,
+                        guint       position,
+                        guint       removed,
+                        guint       added,
+                        gpointer    data)
+{
+  char *text;
+  text = g_strdup_printf ("%u", g_list_model_get_n_items (model));
+  gtk_label_set_label (GTK_LABEL (data), text);
+  g_free (text);
+}
+
+static void
+update_selection_average (GListModel *model,
+                          guint       position,
+                          guint       removed,
+                          guint       added,
+                          gpointer    data)
+{
+  guint n = g_list_model_get_n_items (model);
+  GdkRGBA c = { 0, 0, 0, 1 };
+  guint i;
+  GtkColor *color;
+
+  for (i = 0; i < n; i++)
+    {
+      color = g_list_model_get_item (model, i);
+
+      c.red += color->color.red;
+      c.green += color->color.green;
+      c.blue += color->color.blue;
+
+      g_object_unref (color);
+    }
+
+  color = gtk_color_new ("", c.red / n, c.green / n, c.blue / n);
+  gtk_picture_set_paintable (GTK_PICTURE (data), GDK_PAINTABLE (color));
+  g_object_unref (color);
+}
+
+static void
+update_progress_cb (GtkSortListModel *model,
+                    GParamSpec       *pspec,
+                    GtkProgressBar   *progress)
+{
+  guint total;
+  guint pending;
+
+  total = g_list_model_get_n_items (G_LIST_MODEL (model));
+  total = MAX (total, 1); /* avoid div by 0 below */
+  pending = gtk_sort_list_model_get_pending (model);
+
+  gtk_widget_set_visible (GTK_WIDGET (progress), pending != 0);
+  gtk_progress_bar_set_fraction (progress, (total - pending) / (double) total);
+}
+
 static GtkWidget *window = NULL;

 GtkWidget *
@@ -784,10 +850,11 @@ do_listview_colors (GtkWidget *do_widget)
 {
  if (window == NULL)
    {
-      GtkWidget *header, *gridview, *sw, *box, *dropdown;
+      GtkMultiSelection *selection;
+      GtkSortListModel *sort_model;
+      GtkWidget *header, *overlay, *gridview, *sw, *box, *dropdown;
      GtkListItemFactory *factory;
      GListStore *factories;
-      GListModel *model;
      GtkSorter *sorter;
      GtkSorter *multi_sorter;
      GListStore *sorters;
@@ -797,11 +864,31 @@ do_listview_colors (GtkWidget *do_widget)
      PangoAttrList *attrs;
      char *string;
      guint len;
+      GtkWidget *selection_view;
+      GListModel *selection_filter;
+      GtkSelectionModel *no_selection;
+      GtkWidget *grid;
+      GtkWidget *selection_size_label;
+      GtkWidget *selection_average_picture;
+      GtkWidget *selection_info_toggle;
+      GtkWidget *selection_info_revealer;
+      GtkWidget *progress;
+      GtkCssProvider *provider;
+
+      provider = gtk_css_provider_new ();
+      gtk_css_provider_load_from_resource (provider, "/listview_colors/listview_colors.css");
+      gtk_style_context_add_provider_for_display (gdk_display_get_default (),
+                                                  GTK_STYLE_PROVIDER (provider),
+                                                  800);
+      g_object_unref (provider);
+
+      sort_model = gtk_sort_list_model_new (gtk_color_list_new (0), NULL);
+      gtk_sort_list_model_set_incremental (sort_model, TRUE);
+      selection = gtk_multi_selection_new (G_LIST_MODEL (sort_model));

      window = gtk_window_new ();
      gtk_window_set_title (GTK_WINDOW (window), "Colors");
      header = gtk_header_bar_new ();
-      gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (header), TRUE);
      gtk_window_set_titlebar (GTK_WINDOW (window), header);

      gtk_window_set_default_size (GTK_WINDOW (window), 600, 400);
@@ -809,18 +896,95 @@ do_listview_colors (GtkWidget *do_widget)
                              gtk_widget_get_display (do_widget));
      g_object_add_weak_pointer (G_OBJECT (window), (gpointer*)&window);

+      overlay = gtk_overlay_new ();
+      gtk_window_set_child (GTK_WINDOW (window), overlay);
+
+      box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+      gtk_overlay_set_child (GTK_OVERLAY (overlay), box);
+
+      progress = gtk_progress_bar_new ();
+      gtk_widget_set_hexpand (progress, TRUE);
+      gtk_widget_set_valign (progress, GTK_ALIGN_START);
+      g_signal_connect (sort_model, "notify::pending", G_CALLBACK (update_progress_cb), progress);
+      gtk_overlay_add_overlay (GTK_OVERLAY (overlay), progress);
+
+      selection_info_revealer = gtk_revealer_new ();
+      gtk_box_append (GTK_BOX (box), selection_info_revealer);
+
+      grid = gtk_grid_new ();
+      gtk_revealer_set_child (GTK_REVEALER (selection_info_revealer), grid);
+      gtk_widget_set_margin_start (grid, 10);
+      gtk_widget_set_margin_end (grid, 10);
+      gtk_widget_set_margin_top (grid, 10);
+      gtk_widget_set_margin_bottom (grid, 10);
+      gtk_grid_set_row_spacing (GTK_GRID (grid), 10);
+      gtk_grid_set_column_spacing (GTK_GRID (grid), 10);
+
+      label = gtk_label_new ("Selection");
+      gtk_widget_set_hexpand (label, TRUE);
+      gtk_widget_add_css_class (label, "title-3");
+      gtk_grid_attach (GTK_GRID (grid), label, 0, 0, 5, 1);
+
+      gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Size:"), 0, 2, 1, 1);
+
+      selection_size_label = gtk_label_new ("0");
+      gtk_grid_attach (GTK_GRID (grid), selection_size_label, 1, 2, 1, 1);
+
+      gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Average:"), 2, 2, 1, 1);
+
+      selection_average_picture = gtk_picture_new ();
+      gtk_widget_set_size_request (selection_average_picture, 32, 32);
+      gtk_grid_attach (GTK_GRID (grid), selection_average_picture, 3, 2, 1, 1);
+
+      label = gtk_label_new ("");
+      gtk_widget_set_hexpand (label, TRUE);
+      gtk_grid_attach (GTK_GRID (grid), label, 4, 2, 1, 1);
+
      sw = gtk_scrolled_window_new ();
-      gtk_window_set_child (GTK_WINDOW (window), sw);
+      gtk_widget_set_hexpand (sw, TRUE);
+
+      gtk_grid_attach (GTK_GRID (grid), sw, 0, 1, 5, 1);
+      gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
+                                      GTK_POLICY_NEVER,
+                                      GTK_POLICY_AUTOMATIC);
+
+      factory = gtk_signal_list_item_factory_new ();
+      g_signal_connect (factory, "setup", G_CALLBACK (setup_selection_listitem_cb), NULL);
+      selection_view = gtk_grid_view_new (NULL, factory);
+      gtk_widget_add_css_class (selection_view, "compact");
+      gtk_grid_view_set_max_columns (GTK_GRID_VIEW (selection_view), 200);
+      gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), selection_view);
+
+      sw = gtk_scrolled_window_new ();
+      gtk_box_append (GTK_BOX (box), sw);

      gridview = create_color_grid ();
+      gtk_grid_view_set_model (GTK_GRID_VIEW (gridview), GTK_SELECTION_MODEL (selection));
      gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), gridview);
-      model = gtk_grid_view_get_model (GTK_GRID_VIEW (gridview));
-      g_object_get (model, "model", &model, NULL);
+      gtk_widget_set_hexpand (sw, TRUE);
+      gtk_widget_set_vexpand (sw, TRUE);
+
+      selection_filter = G_LIST_MODEL (gtk_selection_filter_model_new (GTK_SELECTION_MODEL (selection)));
+      g_signal_connect (selection_filter, "items-changed", G_CALLBACK (update_selection_count), selection_size_label);
+      g_signal_connect (selection_filter, "items-changed", G_CALLBACK (update_selection_average), selection_average_picture);
+
+      no_selection = GTK_SELECTION_MODEL (gtk_no_selection_new (selection_filter));
+      gtk_grid_view_set_model (GTK_GRID_VIEW (selection_view), no_selection);
+      g_object_unref (no_selection);
+
+      selection_info_toggle = gtk_toggle_button_new ();
+      gtk_button_set_icon_name (GTK_BUTTON (selection_info_toggle), "emblem-important-symbolic");
+      gtk_widget_set_tooltip_text (selection_info_toggle, "Show selection info");
+      gtk_header_bar_pack_start (GTK_HEADER_BAR (header), selection_info_toggle);
+
+      g_object_bind_property (selection_info_toggle, "active",
+                              selection_info_revealer, "reveal-child",
+                              G_BINDING_DEFAULT);

      button = gtk_button_new_with_mnemonic ("_Refill");
      g_signal_connect (button, "clicked",
                        G_CALLBACK (refill),
-                        gtk_sort_list_model_get_model (GTK_SORT_LIST_MODEL (model)));
+                        gtk_sort_list_model_get_model (sort_model));

      gtk_header_bar_pack_start (GTK_HEADER_BAR (header), button);

@@ -835,15 +999,13 @@ do_listview_colors (GtkWidget *do_widget)
      gtk_label_set_width_chars (GTK_LABEL (label), len + 2);
      gtk_label_set_xalign (GTK_LABEL (label), 1);

-      g_signal_connect (gtk_grid_view_get_model (GTK_GRID_VIEW (gridview)),
-                        "items-changed", G_CALLBACK (items_changed_cb), label);
+      g_signal_connect (selection, "items-changed", G_CALLBACK (items_changed_cb), label);
      gtk_header_bar_pack_start (GTK_HEADER_BAR (header), label);

-      dropdown = gtk_drop_down_new ();
-      gtk_drop_down_set_from_strings (GTK_DROP_DOWN (dropdown), (const char *[]) { "8", "64", "512", "4096", "32768", "262144", "2097152", "16777216", NULL });
+      dropdown = gtk_drop_down_new_from_strings  ((const char * const[]) { "8", "64", "512", "4096", "32768", "262144", "2097152", "16777216", NULL });
      g_signal_connect (dropdown, "notify::selected",
                        G_CALLBACK (limit_changed_cb), 
-                        gtk_sort_list_model_get_model (GTK_SORT_LIST_MODEL (model)));
+                        gtk_sort_list_model_get_model (sort_model));
      g_signal_connect (dropdown, "notify::selected",
                        G_CALLBACK (limit_changed_cb2), 
                        label);
@@ -918,24 +1080,19 @@ do_listview_colors (GtkWidget *do_widget)
      g_list_store_append (sorters, multi_sorter);
      g_object_unref (multi_sorter);

-      dropdown = gtk_drop_down_new ();
-      box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
-      gtk_box_append (GTK_BOX (box), gtk_label_new ("Sort by:"));
-      gtk_box_append (GTK_BOX (box), dropdown);
-      gtk_header_bar_pack_end (GTK_HEADER_BAR (header), box);
-
      expression = gtk_cclosure_expression_new (G_TYPE_STRING,
                                                NULL,
                                                0, NULL,
                                                (GCallback)get_title,
                                                NULL, NULL);
-      gtk_drop_down_set_expression (GTK_DROP_DOWN (dropdown), expression);
-      gtk_expression_unref (expression);

-      gtk_drop_down_set_model (GTK_DROP_DOWN (dropdown), G_LIST_MODEL (sorters));
-      g_object_unref (sorters);
+      dropdown = gtk_drop_down_new (G_LIST_MODEL (sorters), expression);
+      box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
+      gtk_box_append (GTK_BOX (box), gtk_label_new ("Sort by:"));
+      gtk_box_append (GTK_BOX (box), dropdown);
+      gtk_header_bar_pack_end (GTK_HEADER_BAR (header), box);

-      g_object_bind_property (dropdown, "selected-item", model, "sorter", G_BINDING_SYNC_CREATE);
+      g_object_bind_property (dropdown, "selected-item", sort_model, "sorter", G_BINDING_SYNC_CREATE);

      factories = g_list_store_new (GTK_TYPE_LIST_ITEM_FACTORY);

@@ -949,25 +1106,20 @@ do_listview_colors (GtkWidget *do_widget)
      set_title (factory, "Everything");
      g_list_store_append (factories, factory);

-      dropdown = gtk_drop_down_new ();
-      box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
-      gtk_box_append (GTK_BOX (box), gtk_label_new ("Show:"));
-      gtk_box_append (GTK_BOX (box), dropdown);
-      gtk_header_bar_pack_end (GTK_HEADER_BAR (header), box);
-
      expression = gtk_cclosure_expression_new (G_TYPE_STRING,
                                                NULL,
                                                0, NULL,
                                                (GCallback)get_title,
                                                NULL, NULL);
-      gtk_drop_down_set_expression (GTK_DROP_DOWN (dropdown), expression);
-      gtk_expression_unref (expression);
-
-      gtk_drop_down_set_model (GTK_DROP_DOWN (dropdown), G_LIST_MODEL (factories));
-      g_object_unref (factories);
+      dropdown = gtk_drop_down_new (G_LIST_MODEL (factories), expression);
+      box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
+      gtk_box_append (GTK_BOX (box), gtk_label_new ("Show:"));
+      gtk_box_append (GTK_BOX (box), dropdown);
+      gtk_header_bar_pack_end (GTK_HEADER_BAR (header), box);

      g_object_bind_property (dropdown, "selected-item", gridview, "factory", G_BINDING_SYNC_CREATE);
-      g_object_unref (model);
+
+      g_object_unref (selection);
    }

  if (!gtk_widget_get_visible (window))
--- a/demos/gtk-demo/listview_colors.css
+++ b/demos/gtk-demo/listview_colors.css
@@ -0,0 +1,3 @@
+.view.compact > child {
+  padding: 1px;
+}
--- a/demos/gtk-demo/listview_filebrowser.c
+++ b/demos/gtk-demo/listview_filebrowser.c
@@ -225,7 +225,7 @@ filebrowser_view_activated_cb (GtkGridView      *view,
 {
  GFileInfo *info;

-  info = g_list_model_get_item (gtk_grid_view_get_model (view), pos);
+  info = g_list_model_get_item (G_LIST_MODEL (gtk_grid_view_get_model (view)), pos);
  if (g_file_info_get_file_type (info) == G_FILE_TYPE_DIRECTORY)
    gtk_directory_list_set_file (list, G_FILE (g_file_info_get_attribute_object (info, "standard::file")));

--- a/demos/gtk-demo/listview_filebrowser.css
+++ b/demos/gtk-demo/listview_filebrowser.css
@@ -1,11 +1,11 @@
-list.viewswitcher {
+listview.viewswitcher {
  border: 1px solid gray;
 }

-list.viewswitcher > row {
+listview.viewswitcher > row {
  padding: 5px;
 }

-list.viewswitcher row:selected {
+listview.viewswitcher row:selected {
  background: gray;
 }
--- a/demos/gtk-demo/listview_filebrowser.ui
+++ b/demos/gtk-demo/listview_filebrowser.ui
@@ -165,8 +165,12 @@
      </object>
    </child>
  </object>
-  <object class="GtkDirectoryList" id="dirlist">
-    <property name="attributes">standard::name,standard::display-name,standard::icon,standard::size,standard::content-type</property>
+  <object class="GtkSingleSelection" id="selection_model">
+    <property name="model">
+      <object class="GtkDirectoryList" id="dirlist">
+        <property name="attributes">standard::name,standard::display-name,standard::icon,standard::size,standard::content-type</property>
+      </object>
+    </property>
  </object>
  <object class="GtkWindow" id="window">
    <property name="title" translatable="yes">File browser</property>
@@ -174,7 +178,6 @@
    <property name="default-height">400</property>
    <child type="titlebar">
      <object class="GtkHeaderBar" id="">
-        <property name="show-title-buttons">1</property>
        <child>
          <object class="GtkButton">
            <property name="icon-name">go-up-symbolic</property>
@@ -228,7 +231,7 @@
        <property name="can-focus">1</property>
        <child>
          <object class="GtkGridView" id="view">
-            <property name="model">dirlist</property>
+            <property name="model">selection_model</property>
            <property name="max-columns">15</property>
            <binding name="factory">
              <lookup name="factory" type="FileBrowserView">
--- a/demos/gtk-demo/listview_minesweeper.ui
+++ b/demos/gtk-demo/listview_minesweeper.ui
@@ -6,7 +6,6 @@
    <property name="title" translatable="yes">Minesweeper</property>
    <child type="titlebar">
      <object class="GtkHeaderBar" id="">
-        <property name="show-title-buttons">1</property>
        <child>
          <object class="GtkButton">
            <property name="label">New Game</property>
--- a/demos/gtk-demo/listview_settings.c
+++ b/demos/gtk-demo/listview_settings.c
@@ -5,6 +5,10 @@
 * It demonstrates how to implement support for trees with GtkListView.
 * It also shows how to set up sorting and filtering for columns in a
 * GtkColumnView.
+ *
+ * It also demonstrates different styles of list. The tree on the left
+ * uses the .navigation-sidebar style class, the list on the right uses
+ * the .data-table style class.
 */

 #include <gtk/gtk.h>
@@ -214,8 +218,6 @@ transform_settings_to_keys (GBinding     *binding,
  GtkSortListModel *sort_model;
  GtkFilterListModel *filter_model;
  GtkFilter *filter;
-  GtkNoSelection *selection_model;
-  GtkExpression *expression;
  char **keys;
  guint i;

@@ -243,24 +245,13 @@ transform_settings_to_keys (GBinding     *binding,
  g_object_unref (settings);

  sort_model = gtk_sort_list_model_new (G_LIST_MODEL (store),
-                                        gtk_column_view_get_sorter (GTK_COLUMN_VIEW (data)));
-  g_object_unref (store);
-
-  expression = gtk_property_expression_new (SETTINGS_TYPE_KEY, NULL, "name");
-  filter = gtk_string_filter_new ();
-  gtk_string_filter_set_expression (GTK_STRING_FILTER (filter), expression);
-  filter_model = gtk_filter_list_model_new (G_LIST_MODEL (sort_model), filter);
-  gtk_expression_unref (expression);
-  g_object_unref (sort_model);
+                                        g_object_ref (gtk_column_view_get_sorter (GTK_COLUMN_VIEW (data))));

+  filter = gtk_string_filter_new (gtk_property_expression_new (SETTINGS_TYPE_KEY, NULL, "name"));
  g_set_object (&current_filter, filter);
+  filter_model = gtk_filter_list_model_new (G_LIST_MODEL (sort_model), filter);

-  g_object_unref (filter);
-
-  selection_model = gtk_no_selection_new (G_LIST_MODEL (filter_model));
-  g_object_unref (filter_model);
-
-  g_value_take_object (to_value, selection_model);
+  g_value_take_object (to_value, gtk_no_selection_new (G_LIST_MODEL (filter_model)));

  return TRUE;
 }
@@ -371,6 +362,8 @@ do_listview_settings (GtkWidget *do_widget)

      builder = gtk_builder_new ();
      gtk_builder_set_scope (builder, scope);
+      g_object_unref (scope);
+
      gtk_builder_add_from_resource (builder, "/listview_settings/listview_settings.ui", NULL);

      window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
@@ -407,8 +400,8 @@ do_listview_settings (GtkWidget *do_widget)
      g_object_unref (actions);

      model = create_settings_model (NULL, NULL);
-      treemodel = gtk_tree_list_model_new (FALSE,
-                                           model,
+      treemodel = gtk_tree_list_model_new (model,
+                                           FALSE,
                                           TRUE,
                                           create_settings_model,
                                           NULL,
@@ -420,10 +413,8 @@ do_listview_settings (GtkWidget *do_widget)
                                   transform_settings_to_keys,
                                   NULL,
                                   columnview, NULL);
-      gtk_list_view_set_model (GTK_LIST_VIEW (listview), G_LIST_MODEL (selection));
+      gtk_list_view_set_model (GTK_LIST_VIEW (listview), GTK_SELECTION_MODEL (selection));
      g_object_unref (selection);
-      g_object_unref (treemodel);
-      g_object_unref (model);

      name_column = GTK_COLUMN_VIEW_COLUMN (gtk_builder_get_object (builder, "name_column"));
      sorter = gtk_string_sorter_new (gtk_property_expression_new (SETTINGS_TYPE_KEY, NULL, "name"));
--- a/demos/gtk-demo/listview_settings.ui
+++ b/demos/gtk-demo/listview_settings.ui
@@ -6,7 +6,6 @@
    <property name="default-height">480</property>
    <child type="titlebar">
      <object class="GtkHeaderBar">
-        <property name="show-title-buttons">1</property>
        <child type="end">
          <object class="GtkToggleButton" id="search_button">
            <property name="icon-name">system-search-symbolic</property>
@@ -21,6 +20,9 @@
          <object class="GtkScrolledWindow">
            <child>
              <object class="GtkListView" id="listview">
+                <style>
+                  <class name="navigation-sidebar"/>
+                </style>
                <property name="factory">
                  <object class="GtkBuilderListItemFactory">
                    <property name="bytes"><![CDATA[
@@ -74,6 +76,9 @@
                <property name="vexpand">1</property>
                <child>
                  <object class="GtkColumnView" id="columnview">
+                    <style>
+                      <class name="data-table"/>
+                    </style>
                    <child>
                      <object class="GtkColumnViewColumn" id="name_column">
                        <property name="title">Name</property>
--- a/Show More
+++ b/Show More