Add a reverse list model

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

.gitlab-ci.yml

@@ -1,13 +1,8 @@
-include:
-  - project: 'gnome/citemplates'
-    file: 'flatpak/flatpak_ci_initiative.yml'
-
 stages:
   - build
   - analysis
   - docs
   - flatpak
-  - publish
   - deploy
 
 .cache-paths: &cache-paths
@@ -21,12 +16,13 @@ stages:
 
 # Common variables
 variables:
-  COMMON_MESON_FLAGS: "-Dwerror=true -Dglib:werror=false -Dpango:werror=false -Dgtk-doc:werror=false -Dwayland-protocols:werror=false -Dsysprof:werror=false"
+  COMMON_MESON_FLAGS: "--fatal-meson-warnings -Dgtk:werror=true"
   BACKEND_FLAGS: "-Dx11-backend=true -Dwayland-backend=true -Dbroadway-backend=true"
   FEATURE_FLAGS: "-Dvulkan=enabled -Dcloudproviders=enabled"
   MESON_TEST_TIMEOUT_MULTIPLIER: 3
-  FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/gtk/fedora:v34"
+  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"
 
 .only-default:
   only:
@@ -43,7 +39,6 @@ style-check-diff:
     - .gitlab-ci/run-style-check-diff.sh
 
 .build-fedora-default:
-  extends: .only-default
   image: $FEDORA_IMAGE
   artifacts:
     when: always
@@ -58,10 +53,8 @@ style-check-diff:
       - "${CI_PROJECT_DIR}/_build/report*.xml"
       - "${CI_PROJECT_DIR}/_build/report*.html"
       - "${CI_PROJECT_DIR}/_build/testsuite/reftests/output/*/*.png"
-      - "${CI_PROJECT_DIR}/_build/testsuite/tools/output/*/*"
       - "${CI_PROJECT_DIR}/_build/testsuite/gsk/compare/*/*/*.png"
       - "${CI_PROJECT_DIR}/_build/testsuite/css/output/*/*.syscap"
-      - "${CI_PROJECT_DIR}/_build_hello/meson-logs"
   cache:
     key: "$CI_JOB_NAME"
     paths:
@@ -79,16 +72,11 @@ fedora-x86_64:
   variables:
     EXTRA_MESON_FLAGS: "--buildtype=debug --default-library=both"
   script:
-    - .gitlab-ci/show-info-linux.sh
     - meson subprojects update
-    - mkdir _install
-    - meson --prefix=${CI_PROJECT_DIR}/_install
-            ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} ${BACKEND_FLAGS} ${FEATURE_FLAGS}
+    - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} ${BACKEND_FLAGS} ${FEATURE_FLAGS}
+            -Dsysprof=enabled
             _build
-    - meson compile -C _build
-    - meson install -C _build
-    - PKG_CONFIG_PATH=${CI_PROJECT_DIR}/_install/lib64/pkgconfig:${CI_PROJECT_DIR}/_install/share/pkgconfig meson setup _build_hello examples/hello
-    - meson compile -C _build_hello
+    - ninja -C _build
     - .gitlab-ci/run-tests.sh _build x11
     - .gitlab-ci/run-tests.sh _build wayland
     - .gitlab-ci/run-tests.sh _build broadway
@@ -100,7 +88,6 @@ release-build:
   variables:
     EXTRA_MESON_FLAGS: "--buildtype=release"
   script:
-    - .gitlab-ci/show-info-linux.sh
     - meson subprojects update
     - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} ${BACKEND_FLAGS} ${FEATURE_FLAGS}
             _build
@@ -113,9 +100,7 @@ installed-tests:
   needs: []
   variables:
     EXTRA_MESON_FLAGS: "--prefix=/usr --libdir=/usr/lib64 -Dinstall-tests=true"
-    G_TEST_ACCESSIBLE: 1
   script:
-    - .gitlab-ci/show-info-linux.sh
     - meson subprojects update
     - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} ${BACKEND_FLAGS} ${FEATURE_FLAGS}
             _build
@@ -132,7 +117,6 @@ installed-tests:
 
 
 .mingw-defaults:
-  extends: .only-default
   stage: build
   tags:
     - win32-ps
@@ -156,51 +140,6 @@ msys2-mingw64:
     MSYSTEM: "MINGW64"
     CHERE_INVOKING: "yes"
 
-macos:
-  extends: .only-default
-  only:
-    - branches@GNOME/gtk
-  stage: build
-  tags:
-    - macos
-  needs: []
-  before_script:
-    - bash .gitlab-ci/show-info-osx.sh
-    - pip3 install --user meson==0.56
-    - pip3 install --user ninja
-    - export PATH=/Users/gitlabrunner/Library/Python/3.7/bin:$PATH
-    - export MESON_FORCE_BACKTRACE=1
-  script:
-    - meson -Dx11-backend=false
-            -Dbroadway-backend=true
-            -Dmacos-backend=true
-            -Dmedia-gstreamer=disabled
-            -Dintrospection=disabled
-            -Dcpp_std=c++11
-            -Dpixman:tests=disabled
-            _build
-    - ninja -C _build
-  artifacts:
-    when: always
-    paths:
-      - "${CI_PROJECT_DIR}/_build/meson-logs"
-
-vs2017-x64:
-  extends: .only-default
-  # TODO: Uncomment this when ready to merge.
-  #only:
-  #  - branches@GNOME/gtk
-  stage: build
-  tags:
-    - win32-ps
-  needs: []
-  script:
-    - .gitlab-ci/test-msvc.bat
-  artifacts:
-    when: always
-    paths:
-      - "${CI_PROJECT_DIR}/_build/meson-logs"
-
 .flatpak-defaults:
   image: $FLATPAK_IMAGE
   stage: flatpak
@@ -210,7 +149,6 @@ vs2017-x64:
   artifacts:
     paths:
       - "${APPID}-dev.flatpak"
-      - 'repo.tar'
     expire_in: 1 day
   script:
     - bash -x ./.gitlab-ci/flatpak-build.sh "${APPID}"
@@ -262,24 +200,6 @@ flatpak-master:icon-browser:
   variables:
     APPID: org.gtk.IconBrowser4
 
-# Publish the demo apps to the GNOME Nightly repo
-# https://wiki.gnome.org/Apps/Nightly
-# https://gitlab.gnome.org/GNOME/Initiatives/-/wikis/DevOps-with-Flatpak
-nightly demo:
-    extends: '.publish_nightly'
-    dependencies: ['flatpak-master:demo']
-    needs: ['flatpak-master:demo']
-
-nightly factory:
-    extends: '.publish_nightly'
-    dependencies: ['flatpak-master:widget-factory']
-    needs: ['flatpak-master:widget-factory']
-
-nightly icon-browser:
-    extends: '.publish_nightly'
-    dependencies: ['flatpak-master:icon-browser']
-    needs: ['flatpak-master:icon-browser']
-
 static-scan:
   image: $FEDORA_IMAGE
   stage: analysis
@@ -303,7 +223,7 @@ asan-build:
   needs: []
   variables:
   script:
-    - CC=clang meson --buildtype=debugoptimized -Db_sanitize=address -Db_lundef=false -Dintrospection=disabled _build
+    - CC=clang meson --buildtype=debugoptimized -Db_sanitize=address -Db_lundef=false -Dintrospection=false _build
     - ninja -C _build
     - .gitlab-ci/run-tests.sh _build wayland
   artifacts:
@@ -312,37 +232,29 @@ asan-build:
   allow_failure: true
 
 reference:
-  image: $FEDORA_IMAGE
+  image: $DOCS_IMAGE
   stage: docs
   needs: []
   variables:
-    EXTRA_MESON_FLAGS: "--buildtype=release --force-fallback-for=gdk-pixbuf,pango"
+    EXTRA_MESON_FLAGS: "--buildtype=release"
   script:
-    - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} -Dgtk_doc=true -Dgdk-pixbuf:gtk_doc=true -Dpango:gtk_doc=true _build
-    - meson compile -C _build
+    - meson ${COMMON_MESON_FLAGS} ${EXTRA_MESON_FLAGS} -Dgtk_doc=true _build
+    - ninja -C _build gdk4-doc gsk4-doc gtk4-doc
     - mkdir -p _reference/
-    - mv _build/docs/reference/gdk/gdk4/ _reference/gdk4/
-    - mv _build/docs/reference/gdk/gdk4-x11/ _reference/gdk4-x11/
-    - mv _build/docs/reference/gdk/gdk4-wayland/ _reference/gdk4-wayland/
-    - mv _build/docs/reference/gsk/gsk4/ _reference/gsk4/
-    - mv _build/docs/reference/gtk/gtk4/ _reference/gtk4/
-    - mv _build/subprojects/pango/docs/Pango/ _reference/Pango/
-    - mv _build/subprojects/pango/docs/PangoCairo/ _reference/PangoCairo/
-    - mv _build/subprojects/pango/docs/PangoFc/ _reference/PangoFc/
-    - mv _build/subprojects/pango/docs/PangoFT2/ _reference/PangoFT2/
-    - mv _build/subprojects/pango/docs/PangoOT/ _reference/PangoOT/
-    - mv _build/subprojects/pango/docs/PangoXft/ _reference/PangoXft/
-    - mv _build/subprojects/gdk-pixbuf/docs/gdk-pixbuf/ _reference/gdk-pixbuf/
-    - mv _build/subprojects/gdk-pixbuf/docs/gdk-pixdata/ _reference/gdk-pixdata/
+    - mv _build/docs/reference/gdk/html/ _reference/gdk/
+    - mv _build/docs/reference/gsk/html/ _reference/gsk/
+    - mv _build/docs/reference/gtk/html/ _reference/gtk/
   artifacts:
     paths:
       - _reference
 
-publish-docs:
-  stage: publish
+pages:
+  stage: deploy
   needs: ['reference']
   script:
-    - "curl -X POST -F token=${PAGES_TRIGGER_TOKEN} -F ref=docs-gtk-org https://gitlab.gnome.org/api/v4/projects/665/trigger/pipeline"
+    - mv _reference/ public/
+  artifacts:
+    paths:
+      - public
   only:
-    refs:
-      - master
+    - master

.gitlab-ci/README.md

@@ -17,8 +17,8 @@ branch, as well as their available versions.
 ### Checklist for Updating a CI image
 
  - [ ] Update the `${image}.Dockerfile` file with the dependencies
- - [ ] Run `./run-docker.sh build --base ${image} --version ${number}`
- - [ ] Run `./run-docker.sh push --base ${image} --version ${number}`
+ - [ ] Run `./run-docker.sh build --base ${image} --base-version ${number}`
+ - [ ] Run `./run-docker.sh push --base ${image} --base-version ${number}`
    once the Docker image is built; you may need to log in by using
    `docker login` or `podman login`
  - [ ] Update the `image` keys in the `.gitlab-ci.yml` file with the new
@@ -30,8 +30,8 @@ branch, as well as their available versions.
  - [ ] Write a new `${image}.Dockerfile` with the instructions to set up
    a build environment
  - [ ] Add the `pip3 install meson` incantation
- - [ ] Run `./run-docker.sh build --base ${image} --version ${number}`
- - [ ] Run `./run-docker.sh push --base ${image} --version ${number}`
+ - [ ] Run `./run-docker.sh build --base ${image} --base-version ${number}`
+ - [ ] Run `./run-docker.sh push --base ${image} --base-version ${number}`
  - [ ] Add the new job to `.gitlab-ci.yml` referencing the image
  - [ ] Open a merge request with your changes and let it run
 

.gitlab-ci/fedora-base.Dockerfile

@@ -0,0 +1,90 @@
+FROM fedora:31
+
+RUN dnf -y install \
+    adwaita-icon-theme \
+    atk-devel \
+    at-spi2-atk-devel \
+    avahi-gobject-devel \
+    cairo-devel \
+    cairo-gobject-devel \
+    ccache \
+    clang \
+    clang-analyzer \
+    colord-devel \
+    cups-devel \
+    dbus-daemon \
+    dbus-x11 \
+    dejavu-sans-mono-fonts \
+    desktop-file-utils \
+    diffutils \
+    elfutils-libelf-devel \
+    fribidi-devel \
+    gcc \
+    gcc-c++ \
+    gdk-pixbuf2-devel \
+    gdk-pixbuf2-modules \
+    gettext \
+    git \
+    glib2-devel \
+    glib2-static \
+    glibc-devel \
+    glibc-headers \
+    gnome-desktop-testing \
+    gobject-introspection-devel \
+    graphene-devel \
+    gstreamer1-devel \
+    gstreamer1-plugins-good \
+    gstreamer1-plugins-bad-free-devel \
+    gstreamer1-plugins-base-devel \
+    gtk-doc \
+    hicolor-icon-theme \
+    iso-codes \
+    itstool \
+    json-glib-devel \
+    lcov \
+    libasan \
+    libattr-devel \
+    libepoxy-devel \
+    libffi-devel \
+    libmount-devel \
+    librsvg2 \
+    libselinux-devel \
+    libubsan \
+    libXcomposite-devel \
+    libXcursor-devel \
+    libXcursor-devel \
+    libXdamage-devel \
+    libXfixes-devel \
+    libXi-devel \
+    libXinerama-devel \
+    libxkbcommon-devel \
+    libXrandr-devel \
+    libXrender-devel \
+    libXtst-devel \
+    libxslt \
+    mesa-dri-drivers \
+    mesa-libEGL-devel \
+    mesa-libwayland-egl-devel \
+    ninja-build \
+    pango-devel \
+    pcre-devel \
+    pcre-static \
+    python3 \
+    python3-jinja2 \
+    python3-pip \
+    python3-pygments \
+    python3-wheel \
+    redhat-rpm-config \
+    sassc \
+    systemtap-sdt-devel \
+    vulkan-devel \
+    wayland-devel \
+    wayland-protocols-devel \
+    weston \
+    weston-libs \
+    which \
+    xorg-x11-server-Xvfb \
+ && dnf clean all
+
+RUN pip3 install meson==0.53.1
+

.gitlab-ci/fedora-docs.Dockerfile

@@ -0,0 +1,12 @@
+FROM registry.gitlab.gnome.org/gnome/gtk/fedora-base:v19
+
+RUN dnf -y install pandoc
+
+ARG HOST_USER_ID=5555
+ENV HOST_USER_ID ${HOST_USER_ID}
+RUN useradd -u $HOST_USER_ID -ms /bin/bash user
+
+USER user
+WORKDIR /home/user
+
+ENV LANG C.UTF-8

.gitlab-ci/fedora.Dockerfile

@@ -1,100 +1,4 @@
-FROM fedora:34
-
-RUN dnf -y install \
-    adwaita-icon-theme \
-    atk-devel \
-    at-spi2-atk-devel \
-    avahi-gobject-devel \
-    cairo-devel \
-    cairo-gobject-devel \
-    ccache \
-    clang \
-    clang-analyzer \
-    clang-tools-extra \
-    colord-devel \
-    cups-devel \
-    dbus-daemon \
-    dbus-x11 \
-    dejavu-sans-mono-fonts \
-    desktop-file-utils \
-    diffutils \
-    elfutils-libelf-devel \
-    fribidi-devel \
-    gcc \
-    gcc-c++ \
-    gdk-pixbuf2-devel \
-    gdk-pixbuf2-modules \
-    gettext \
-    git \
-    glib2-devel \
-    glib2-static \
-    glibc-devel \
-    glibc-headers \
-    gnome-desktop-testing \
-    gobject-introspection-devel \
-    graphene-devel \
-    graphviz \
-    gstreamer1-devel \
-    gstreamer1-plugins-good \
-    gstreamer1-plugins-bad-free-devel \
-    gstreamer1-plugins-base-devel \
-    hicolor-icon-theme \
-    iso-codes \
-    itstool \
-    json-glib-devel \
-    lcov \
-    libasan \
-    libattr-devel \
-    libcloudproviders-devel \
-    libepoxy-devel \
-    libffi-devel \
-    libjpeg-turbo-devel \
-    libmount-devel \
-    libpng-devel \
-    librsvg2 \
-    libselinux-devel \
-    libtiff-devel \
-    libubsan \
-    libXcomposite-devel \
-    libXcursor-devel \
-    libXcursor-devel \
-    libXdamage-devel \
-    libXfixes-devel \
-    libXi-devel \
-    libXinerama-devel \
-    libxkbcommon-devel \
-    libXrandr-devel \
-    libXrender-devel \
-    libXtst-devel \
-    libxslt \
-    mesa-dri-drivers \
-    mesa-libEGL-devel \
-    mesa-libGLES-devel \
-    meson \
-    ninja-build \
-    pango-devel \
-    pcre-devel \
-    pcre-static \
-    python3 \
-    python3-gobject \
-    python3-jinja2 \
-    python3-markdown \
-    python3-pip \
-    python3-pygments \
-    python3-toml \
-    python3-typogrify \
-    python3-wheel \
-    redhat-rpm-config \
-    sassc \
-    systemtap-sdt-devel \
-    vulkan-devel \
-    wayland-devel \
-    wayland-protocols-devel \
-    weston \
-    weston-libs \
-    which \
-    xorg-x11-server-Xvfb \
- && dnf clean all
+FROM registry.gitlab.gnome.org/gnome/gtk/fedora-base:v21
 
 # Enable sudo for wheel users
 RUN sed -i -e 's/# %wheel/%wheel/' -e '0,/%wheel/{s/%wheel/# %wheel/}' /etc/sudoers

.gitlab-ci/flatpak-build.sh

@@ -22,9 +22,8 @@ flatpak build ${builddir} meson \
                 -Dprint-backends=file \
                 -Dbuild-tests=false \
                 -Dbuild-examples=false \
-                -Dintrospection=disabled \
+                -Dintrospection=false \
                 -Ddemos=true \
-                -Dprofile=devel \
                 _flatpak_build
 
 flatpak build ${builddir} ninja -C _flatpak_build install
@@ -41,8 +40,3 @@ flatpak build-bundle \
         ${appid}-dev.flatpak \
         --runtime-repo=https://nightly.gnome.org/gnome-nightly.flatpakrepo \
         ${appid}
-
-# to be consumed by the nightly publish jobs
-if [[ $CI_COMMIT_BRANCH == master ]]; then
-        tar cf repo.tar ${repodir}
-fi

.gitlab-ci/pages/fonts.css

@@ -1,154 +0,0 @@
-/*
- * SPDX-FileCopyrightText: 2021 GNOME Foundation
- *
- * SPDX-License-Identifier: LGPL-2.1-or-later
- */
-
-/**
- * RedHat Fonts taken from https://github.com/RedHatOfficial/RedHatFont
- * License: SIL Open Font License 1.1 http://scripts.sil.org/OFL
- */
-@import url('https://fonts.googleapis.com/css2?family=Noto+Serif:ital,wght@0,400;0,700;1,400;1,700&family=Red+Hat+Display:ital,wght@0,400;0,500;0,700;0,900;1,400;1,500;1,700;1,900&display=swap');
-@import url('https://fonts.googleapis.com/css2?family=Noto+Serif:ital,wght@0,400;0,700;1,400;1,700&display=swap');
-@import url('https://fonts.googleapis.com/css2?family=Source+Code+Pro:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500;1,600&display=swap');
-
-@font-face {
-  font-family: "RedHatDisplayWeb";
-  src: local('RedHatDisplayWeb'),
-       url("RedHatDisplay-Regular.woff2") format("woff2"),
-       url("RedHatDisplay-Regular.woff") format("woff");
-  font-style: normal;
-  font-weight: 400;
-  font-display: fallback;
-}
-
-@font-face {
-  font-family: "RedHatDisplayWeb";
-  src: local('RedHatDisplayWeb'),
-       url("RedHatDisplay-RegularItalic.woff2") format("woff2"),
-       url("RedHatDisplay-RegularItalic.woff") format("woff");
-  font-style: italic;
-  font-weight: 400;
-  font-display: fallback;
-}
-
-@font-face {
-  font-family: "RedHatDisplayWeb";
-  src: local('RedHatDisplayWeb'),
-       url("RedHatDisplay-Medium.woff2") format("woff2"),
-       url("RedHatDisplay-Medium.woff") format("woff");
-  font-style: normal;
-  font-weight: 500;
-  font-display: fallback;
-}
-
-@font-face {
-  font-family: "RedHatDisplayWeb";
-  src: local('RedHatDisplayWeb'),
-       url("RedHatDisplay-MediumItalic.woff2") format("woff2"),
-       url("RedHatDisplay-MediumItalic.woff") format("woff");
-  font-style: italic;
-  font-weight: 500;
-  font-display: fallback;
-}
-
-@font-face {
-  font-family: "RedHatDisplayWeb";
-  src: local('RedHatDisplayWeb'),
-       url("RedHatDisplay-Bold.woff2") format("woff2"),
-       url("RedHatDisplay-Bold.woff") format("woff");
-  font-style: normal;
-  font-weight: 700;
-  font-display: fallback;
-}
-
-@font-face {
-  font-family: "RedHatDisplayWeb";
-  src: local('RedHatDisplayWeb'),
-       url("RedHatDisplay-BoldItalic.woff2") format("woff2"),
-       url("RedHatDisplay-BoldItalic.woff") format("woff");
-  font-style: italic;
-  font-weight: 700;
-  font-display: fallback;
-}
-
-
-@font-face {
-  font-family: "RedHatDisplayWeb";
-  src: local('RedHatDisplayWeb'),
-       url("RedHatDisplay-Black.woff2") format("woff2"),
-       url("RedHatDisplay-Black.woff") format("woff");
-  font-style: normal;
-  font-weight: 900;
-  font-display: fallback;
-}
-
-@font-face {
-  font-family: "RedHatDisplayWeb";
-  src: local('RedHatDisplayWeb'),
-       url("RedHatDisplay-BlackItalic.woff2") format("woff2"),
-       url("RedHatDisplay-BlackItalic.woff") format("woff");
-  font-style: italic;
-  font-weight: 900;
-  font-display: fallback;
-}
-
-@font-face {
-  font-family: "RedHatTextWeb";
-  src: local('RedHatTextWeb'),
-       url("RedHatText-Regular.woff2") format("woff2"),
-       url("RedHatText-Regular.woff") format("woff");
-  font-style: normal;
-  font-weight: 400;
-  font-display: fallback;
-}
-
-@font-face {
-  font-family: "RedHatTextWeb";
-  src: local('RedHatTextWeb'),
-       url("RedHatText-RegularItalic.woff2") format("woff2"),
-       url("RedHatText-RegularItalic.woff") format("woff");
-  font-style: italic;
-  font-weight: 400;
-  font-display: fallback;
-}
-
-@font-face {
-  font-family: "RedHatTextWeb";
-  src: local('RedHatTextWeb'),
-       url("RedHatText-Medium.woff2") format("woff2"),
-       url("RedHatText-Medium.woff") format("woff");
-  font-style: normal;
-  font-weight: 700;
-  font-display: fallback;
-}
-
-@font-face {
-  font-family: "RedHatTextWeb";
-  src: local('RedHatTextWeb'),
-       url("RedHatText-MediumItalic.woff2") format("woff2"),
-       url("RedHatText-MediumItalic.woff") format("woff");
-  font-style: italic;
-  font-weight: 700;
-  font-display: fallback;
-}
-
-@font-face {
-  font-family: "RedHatTextWeb";
-  src: local('RedHatTextWeb'),
-       url("RedHatText-Bold.woff2") format("woff2"),
-       url("RedHatText-Bold.woff") format("woff");
-  font-style: normal;
-  font-weight: 900;
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@@ -1,149 +0,0 @@
-<!--
-SPDX-FileCopyrightText: 2021 GNOME Foundation
-
-SPDX-License-Identifier: LGPL-2.1-or-later
--->
-
-<!DOCTYPE html>
-<html lang="en">
-<head>
-  <title>GTK Documentation</title>
-  <meta name="viewport" content="width=device-width, initial-scale=1">
-
-  <meta charset="utf-8" />
-
-  <meta property="og:site_name" content="https://docs.gtk.org"/>
-  <meta property="og:title" content="GTK Documentation"/>
-  <meta property="og:url" content="https://docs.gtk.org"/>
-  <meta property="og:type" content="website"/>
-  <meta property="og:description" content="API reference for GTK"/>
-
-  <meta name="twitter:title" content="GTK Documentation"/>
-  <meta name="twitter:url" content="https://docs.gtk.org"/>
-  <meta name="twitter:card" content="summary"/>
-
-  <link rel="canonical" href="https://docs.gtk.org"/>
-
-  <link rel="stylesheet" href="style.css" type="text/css" />
-
-  <script src="main.js"></script>
-
-  <!--[if IE]><script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script><![endif]-->
-</head>
-
-<body>
-  <div id="body-wrapper" tabindex="-1">
-
-    <nav class="sidebar">
-      
-      <div class="section">
-        <img src="gtk-logo.svg" class="logo"/>
-      </div>
-
-      <div class="section">
-        <h5>Sections</h5>
-        <div class="links">
-          <a href="#user-interface">User interface</a>
-          <a href="#core-libraries">Core libraries</a>
-        </div>
-      </div>
-
-    </nav>
-    
-    <button id="btn-to-top" class="hidden"><span class="up-arrow"></span></button>
-
-    <section id="main" class="content">
-      <header>
-        <h1>GTK Documentation</h1>
-      </header>
-
-      <div class="toggle-wrapper">
-        <h4 id="user-interface">
-          User interface
-          <a href="#user-interface" class="anchor"></a>
-        </h4>
-
-        <div class="docblock">
-          <h5 id="gdk">GTK</h5>
-          <p>GTK is the primary library used to construct user interfaces. It
-          provides user interface controls and signal callbacks to respond to
-          user actions.</p>
-          <p><a href="https://docs.gtk.org/gtk4/">GTK API reference</a></p>
-        </div>
-
-        <div class="docblock">
-          <h5 id="gdk">GSK</h5>
-          <p>An intermediate layer which provides a rendering API implemented using Cairo, OpenGL or Vulkan.</p>
-          <p><a href="https://docs.gtk.org/gsk4/">GSK API reference</a></p>
-        </div>
-
-        <div class="docblock">
-          <h5 id="gdk">GDK</h5>
-          <p>An intermediate layer which isolates GTK from the details of the windowing system.</p>
-          <p><a href="https://docs.gtk.org/gdk4/">GDK API reference</a></p>
-        </div>
-
-        <div class="docblock">
-          <h5 id="pango">Pango</h5>
-          <p>Pango is the core text and font handling library used in GTK
-          applications. It has extensive support for the different writing
-          systems used throughout the world.</p>
-          <p><a href="https://docs.gtk.org/Pango/">Pango API reference</a></p>
-        </div>
-
-        <div class="docblock">
-          <h5 id="gdk-pixbuf">GdkPixbuf</h5>
-          <p>GdkPixbuf is a library for image loading and manipulation.</p>
-          <p><a href="https://docs.gtk.org/gdk-pixbuf/">GdkPixbuf API reference</a></p>
-        </div>
-
-        <div class="docblock">
-          <h5 id="cairo">Cairo</h5>
-          <p>Cairo is a 2D graphics library with support for multiple output
-          devices. It is designed to produce consistent, high quality output
-          on all media.</p>
-          <p><a href="https://www.cairographics.org/manual/" class="external">Cairo API reference</a></p>
-        </div>
-      </div>
-
-      <div class="toggle-wrapper">
-        <h4 id="core-libraries" style="display:flex;">
-          Core libraries
-          <a href="#core-libraries" class="anchor"></a>
-        </h4>
-
-        <div class="docblock">
-          <h5 id="glib">GLib</h5>
-          <p>GLib provides the core application building blocks for libraries
-          and applications written in C. It provides common data types
-          used in GTK, the main loop implementation, and a large set of
-          utility functions for strings and general portability across
-          different platforms.</p>
-          <p><a href="https://developer.gnome.org/glib/" class="external">GLib API reference</a></p>
-        </div>
-
-        <div class="docblock">
-          <h5 id="gobject">GObject</h5>
-          <p>GObject provides the object system used by GTK.</p>
-          <p><a href="https://developer.gnome.org/gobject/" class="external">GObject API reference</a></p>
-        </div>
-
-        <div class="docblock">
-          <h5 id="gio">GIO</h5>
-          <p>GIO provides a portable, modern and easy-to-use file system
-          abstraction API for accessing local and remote files; a set of
-          low and high level abstractions over the <a href="https://www.freedesktop.org/wiki/Software/dbus/" class="external">DBus</a>
-          IPC specification; an application settings API; portable networking
-          abstractions; and additional utilities for writing asynchronous
-          operations without blocking the user interface of your application.</p>
-          <p><a href="https://developer.gnome.org/gio/" class="external">GIO API reference</a></p>
-        </div>
-      </div>
-
-    </section>
-
-    <footer>
-    </footer>
-  </div>
-</body>
-</html>

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-        reversed);
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-  /* colors */
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-  --primary: rgb(28, 118, 228);
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-  --sidebar-text-color: #fafafa;
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-
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-  --heading-weight: 900;
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-  --heading-small-font-family: var(--heading-font-family);
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-  --heading-table-font-family: var(--heading-font-family);
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-  --heading-docblock-scale: 0.9;        /* docblocks have headings from source comments. we want them to differ.*/
-
-  --symbol-font-family: var(--heading-font-family);
-  --symbol-font-weight: 500;
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-  --table-font-size: 0.92em;    /* Tables often contain lots information. It's better to scale them down a big to get more sutff fitted inside */
-
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-  --anchor-sign: "#";
-
-} 
-
-/*********************************
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- *********************************/
- @media (prefers-color-scheme: dark) {
-  :root {
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-    --text-color: #f6f6f6;
-    --text-color-muted: #686868;
-    --body-bg: #121212;
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-    --sidebar-text-color: #fafafa;
-    --box-bg: rgba(135, 135, 135, 0.1);
-    --box-text-color: #fff;
-    --heading-docblock-color: #b7b7b7;
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-
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-
-::selection {
-  color: white;
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-
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-  border-radius: var(--box-radius);
-  margin: var(--box--margin);
-}
-
-code, 
-pre {
-  font-family: var(--monospace-font-family);
-  font-size: var(--monospace-font-size);
-  color: var(--box-text-color);
-}
-
-pre {
-  background: var(--box-bg);
-  padding: var(--box-padding);
-  border-radius: var(--box-radius);
-  overflow: auto;
-}
-
-code {
-  background: var(--box-bg);
-  padding: 0 0.35em;
-  border-radius: 0.35rem;
-  word-break: break-word;
-}
-
-a > code {
-  color: var(--primary);
-}
-
-
-pre pre,
-pre code {
-  padding: 0;
-  margin: 0;
-  font-size: 1em;
-  background: none;
-  color: inherit;
-}
-
-h1 code, h2 code, h3 code, h4 code, h5 code, h6 code {
-  font-family: inherit;
-  font-weight: inherit;
-  font-size: 0.85em;
-}
-
-strong, b {
-  font-weight: 600;
-}
-
-/* fix unwanted margins in tables, code, lists and blockquotes */
-li > *:first-child,
-li > *:first-child > *:first-child,
-li > *:first-child > *:first-child > *:first-child,
-td > *:first-child,
-td > *:first-child > *:first-child,
-td > *:first-child > *:first-child > *:first-child,
-pre > *:first-child,
-pre > *:first-child > *:first-child,
-pre > *:first-child > *:first-child > *:first-child,
-blockquote > *:first-child,
-blockquote > *:first-child > *:first-child,
-blockquote > *:first-child > *:first-child > *:first-child {
-  margin-top: 0;
-}
-li > *:last-child,
-li > *:last-child > *:last-child,
-li > *:last-child > *:last-child > *:last-child,
-td > *:last-child,
-td > *:last-child > *:last-child,
-td > *:last-child > *:last-child > *:last-child,
-pre > *:last-child,
-pre > *:last-child > *:last-child,
-pre > *:last-child > *:last-child > *:last-child,
-blockquote > *:last-child,
-blockquote > *:last-child > *:last-child,
-blockquote > *:last-child > *:last-child > *:last-child {
-  margin-bottom: 0;
-}
-
-/*********************************
- * PAGE STRUCTURE
- *********************************/
-#body-wrapper {
-  display: flex;
-  flex-wrap: nowrap;
-  flex-direction: row;
-}
-
-#body-wrapper:focus {
-  outline: none;
-}
-
-#main {
-  position: relative;
-  flex-grow: 1;
-  min-width: 0;
-  box-shadow: 0 0 134px rgba(0, 0, 0, 0.1);
-}
-
-footer {
-  width: 100%;
-  display: none;
-}
-
-/*********************************
- * Button
- *********************************/
-
-#btn-to-top {
-  position: fixed;
-  bottom: 12px;
-  right: 32px;
-  z-index: 1000;
-  border-radius: 50%;
-  width: 42px;
-  height: 42px;
-  border: 1px solid var(--primary);
-  background: var(--box-bg);
-  color: var(--text-color);
-  cursor: pointer;
-  text-transform: none;
-}
-
-#btn-to-top > .up-arrow:after {
-  content: "🡅"
-}
-
-/*********************************
- * SIDEBAR
- *********************************/
-.sidebar {
-  scrollbar-width: thin;
-  background: var(--sidebar-bg);
-  border-right: 1px solid var(--sidebar-bg);
-  min-width: 40ch;
-  padding: var(--sidebar-padding);
-  color: var(--sidebar-text-color);
-  position: sticky;
-  top: 0;
-  z-index: 2;
-  height: 100vh;
-  overflow-y: auto;
-}
-
-.sidebar a,
-.sidebar a:hover {
-  text-decoration: none;
-}
-
-.sidebar .logo {
-  display: block;
-  margin: 2rem auto 0 auto;
-  width: 70%;
-}
-
-.sidebar .section > ul > li {
-  margin-right: -10px;
-}
-
-.sidebar .section h3, .sidebar .section h5 {
-  text-align: left;
-  padding-left: 0.5rem;
-  padding-right: 0.5rem;
-  font-weight: var(--heading-weight);
-}
-
-.sidebar .section h5 {
-  font-size: 1em;
-  margin-bottom: 0.5em;
-}
-
-.sidebar .namespace > h3 {
-  margin-bottom: 0;
-  padding: 0;
-  font-size: 1.5em;
-  text-transform: uppercase;
-  font-weight: 900;
-}
-
-.sidebar .namespace > p {
-  font-size: 0.9em;
-  opacity: 0.8;
-  padding-left: 0.5rem;
-}
-
-.sidebar .section {
-  padding-left: 0.5rem;
-  padding-right: 0.5rem;
-}
-
-.sidebar .links {
-  margin-bottom: 1rem;
-}
-
-.sidebar .section a {
-  display: block;
-  text-overflow: ellipsis;
-  overflow: hidden;
-  transition: background-color 150ms ease;
-  color: var(--sidebar-primary);
-  border-radius: var(--box-radius);
-   padding: 0.2rem 0.5rem;
-  margin-bottom: 0.15rem;
-}
-
-.sidebar .section a:hover {
-  background-color: rgba(127, 127, 127, 0.2);
-  color: var(--sidebar-text-color);
-}
-
-.sidebar .section a.current {
-  background-color: var(--sidebar-selected-bg);
-  color: white;
-}
-
-.sidebar .search {
-  box-sizing: border-box;
-  text-align: center;
-}
-
-.sidebar .search input[type="text"] {
-  border-color: transparent;
-  width: 100%;
-  border: 1px solid #ccc;
-  border-radius: 50px;
-  padding: 6px 12px;
-  display: inline-block;
-  font-size: 80%;
-  box-shadow: inset 0 1px 3px #ddd;
-  transition: border .3s linear;
-}
-
-/*********************************
- * ANCHORS & TOGGLERS
- *********************************/
-.anchor,
-.md-anchor {
-  position: relative;
-  z-index: 1;
-  text-decoration: none;
-  padding: 0 0.5em;
-  color: var(--text-color-muted);
-}
-
-.anchor:hover,
-.md-anchor:hover {
-  color: var(--primary);
-}
-
-.anchor:not([href]),
-.md-anchor:not([href]) {
-  display: none;
-}
-
-.anchor:before,
-.md-anchor:before {
-  content: var(--anchor-sign); /*'§'*/
-}
-
-.toggle-wrapper {
-  position: relative;
-}
-
-.collapse-toggle {
-  position: absolute;
-  right: 0;
-  left: -2em;
-  white-space: nowrap;
-  text-decoration: none;
-  font-size: 0.8em;
-  color: transparent;
-}
-
-.collapse-toggle > .inner {
-  width: 1rem;
-  height: 1rem;
-  border-radius: calc(0.75 * var(--box-radius));
-  display: inline-flex;
-  justify-content: center;
-  align-items: center;
-  text-align: center;
-  vertical-align: middle;
-  color: var(--box-text-color);
-  position: relative;
-  left: -0.25rem;
-  font-family: monospace;
-  font-size: 0.7rem;
-  font-weight: bold;
-  background: var(--box-bg);
-}
-
-/*********************************
- * UTILITY
- *********************************/
-.deprecated > h6 > a {
-  opacity: 0.65;
-}
-
-.hidden {
-  display: none !important;
-}
-
-/*********************************
- * CONTENT STYLING
- *********************************/
-.content {
-  padding: 2em 4em;
-  overflow: visible;
-  max-width: calc(var(--prefered-content-width) + 8em);
-}
-
-.content table:not(.table-display) {
-  border-spacing: 0 0.25rem;
-}
-
-.content td {
-  vertical-align: top;
-}
-
-.content td:first-child {
-  padding-right: 1rem;
-}
-
-.content td p:first-child {
-  margin-top: 0;
-}
-
-.content td h1, .content td h2 {
-  margin-left: 0;
-  font-size: 1.1em;
-}
-
-.content tr:first-child td {
-  border-top: 0;
-}
-
-kbd {
-  display: inline-block;
-  padding: 3px 5px;
-  font: 15px monospace;
-  line-height: 10px;
-  vertical-align: middle;
-  border: solid 1px;
-  border-radius: 3px;
-  box-shadow: inset 0 -1px 0;
-  cursor: default;
-}
-
-.content tr:first-child {
-  border-bottom: 1px solid rgba(0, 0, 0, 0.35);
-}
-
-.content td {
-  vertical-align: top;
-}
-
-.content td:first-child {
-  padding-right: 1rem;
-}
-
-.content td p:first-child {
-  margin-top: 0;
-}
-
-.content td h4, .content td h5 {
-  margin-left: 0;
-  font-size: 1.1em;
-}
-
-.content tr:first-child td {
-  border-top: 0;
-}
-
-.srclink {
-  color: var(--text-color-muted);
-  font-size: 1rem;
-  font-weight: var(--body-font-weight);
-  flex-grow: 0;
-  text-decoration: none;
-  margin-left: auto;
-  position: relative;
-  z-index: 1;
-}
-
-.meta tr > td:not(:first-child) {
-  width: 100%;
-}
-
-.meta tr > td:first-child {
-  white-space: nowrap;
-}
-
-/*********************************
- * DOCBLOCK STYLING
- *********************************/
-.docblock {
-  position: relative;
-  text-align: left;
-}
-
-.docblock h1 {
-  font-size: calc(1.3em * var(--heading-docblock-scale) * var(--heading-font-scale));
-}
-
-.docblock h2 {
-  font-size: calc(1.2em * var(--heading-docblock-scale) * var(--heading-font-scale));
-}
-
-.docblock h3 {
-  font-size: calc(1.1em * var(--heading-docblock-scale) * var(--heading-font-scale));
-}
-
-.docblock h4 {
-  font-size: calc(1.05em * var(--heading-docblock-scale) * var(--heading-font-scale));
-}
-
-.docblock h1,
-.docblock h2,
-.docblock h3,
-.docblock h4,
-.docblock h5,
-.docblock h6 {
-  color: var(--heading-docblock-color)
-}
-
-.docblock table {
-  margin: .25em 0;
-  max-width: 100%;
-  font-size: var(--table-font-size);
-}
-
-.docblock table td {
-  padding: .25em;
-}
-
-.docblock table th {
-  padding: .25em;
-  text-align: left;
-  font-family: var(--heading-table-font-family);
-  font-weight: var(--heading-table-weight);
-}
-
-.docblock table tr th:first-child,
-.docblock table tr td:first-child {
-  padding-left: 0;
-}
-
-.docblock table tr th:last-child,
-.docblock table tr td:last-child {
-  padding-right: 0;
-}
-
-table.enum-members,
-table.results {
-  border-radius: var(--box-radius);
-  border: 1px solid var(--text-color-muted);
-  border-spacing: 0 0 !important;
-  font-size: 80%;
-}
-
-table.enum-members tr th,
-table.results tr th {
-  border-top-color: var(--body-bg);
-  background-color: var(--box-bg);
-  border-bottom: 1px solid var(--text-color-muted);
-}
-
-table.enum-members tr th:first-child,
-table.enum-members tr td:first-child {
-  min-width: 25em;
-  padding-left: .5em;
-}
-
-table.results tr th:first-child,
-table.results tr td:first-child {
-  padding-left: .5em;
-}
-
-table.enum-members tr th:last-child,
-table.enum-members tr td:last-child,
-table.results tr th:last-child,
-table.results tr td:last-child {
-  max-width: 35em;
-  padding-right: .5em;
-}
-
-table.results tr td code {
-  font-size: 100%;
-}
-
-.docblock ul li,
-.docblock ol li {
-  padding-top: 0.15rem;
-  padding-bottom: 0.15rem;
-}
-
-.docblock ul.type {
-  list-style: none;
-}
-
-.docblock ul.type li::before {
-  content: "»";
-  color: var(--text-color);
-  display: inline-block;
-  width: 1em;
-  margin-left: -1em;
-}
-
-/**************************
- RESPONSIVENESS
-**************************/
-@media (max-width: 700px) {
-  body {
-    padding-top: 0px;
-  }
-
-  #body-wrapper {
-    flex-direction: column;
-    overflow: hidden;
-  }
-
-  #main {
-    width: 100%;
-    padding: 2rem;
-  }
-
-  .sidebar {
-    position: static;
-    height: initial;
-    order: 1;
-  }
-}

.gitlab-ci/run-docker.sh

@@ -32,7 +32,7 @@ while (($# > 0)); do
                 list) list=1;;
                 help) print_help=1;;
                 --base|-b) read_arg base "$@" || shift;;
-                --version|-v) read_arg base_version "$@" || shift;;
+                --base-version) read_arg base_version "$@" || shift;;
                 --no-login) no_login=1;;
                 *) echo -e "\e[1;31mERROR\e[0m: Unknown option '$1'"; exit 1;;
         esac

.gitlab-ci/run-tests.sh

@@ -8,8 +8,7 @@ builddir=$1
 backend=$2
 
 # Ignore memory leaks lower in dependencies
-export LSAN_OPTIONS=suppressions=$srcdir/lsan.supp:print_suppressions=0
-export G_SLICE=always-malloc
+export LSAN_OPTIONS=suppressions=$srcdir/lsan.supp
 
 case "${backend}" in
   x11)

.gitlab-ci/show-info-linux.sh

@@ -1,5 +0,0 @@
-#! /bin/sh
-
-. /etc/os-release
-
-echo $PRETTY_NAME

.gitlab-ci/show-info-osx.sh

@@ -1,8 +0,0 @@
-#!/bin/bash
-
-set -eux -o pipefail
-
-xcodebuild -version || :
-xcodebuild -showsdks || :
-
-system_profiler SPSoftwareDataType || :

.gitlab-ci/test-docker.sh

@@ -15,7 +15,7 @@ meson \
         -Dx11-backend=true \
         -Dwayland-backend=true \
         -Dbroadway-backend=true \
-        -Dvulkan=enabled \
+        -Dvulkan=yes \
         -Dprofiler=true \
         --werror \
         ${EXTRA_MESON_FLAGS:-} \

.gitlab-ci/test-msvc.bat

@@ -1,14 +0,0 @@
-@echo on
-:: vcvarsall.bat sets various env vars like PATH, INCLUDE, LIB, LIBPATH for the
-:: specified build architecture
-call "C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\VC\Auxiliary\Build\vcvarsall.bat" x64
-@echo on
-
-:: FIXME: make warnings fatal
-pip3 install --upgrade --user meson==0.56.2  || goto :error
-meson -Dmedia-gstreamer=disabled _build || goto :error
-ninja -C _build || goto :error
-
-goto :EOF
-:error
-exit /b 1

.gitlab-ci/test-msys2.sh

@@ -40,7 +40,7 @@ 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=2.66.0 glib-2.0; then
+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
@@ -48,7 +48,7 @@ if ! pkg-config --atleast-version=2.66.0 glib-2.0; then
 fi
 pkg-config --modversion glib-2.0
 
-if ! pkg-config --atleast-version=1.49.1 pango; then
+if ! pkg-config --atleast-version=1.45.4 pango; then
     git clone https://gitlab.gnome.org/GNOME/pango.git _pango
     meson setup _pango_build _pango
     meson compile -C _pango_build
@@ -60,12 +60,14 @@ pkg-config --modversion pango
 ccache --zero-stats
 ccache --show-stats
 export CCACHE_DISABLE=true
+# FIXME: introspection disabled for now because of
+# https://gitlab.gnome.org/GNOME/gobject-introspection/-/issues/340
 meson \
     -Dx11-backend=false \
     -Dwayland-backend=false \
     -Dwin32-backend=true \
     -Dvulkan=disabled \
-    -Dintrospection=enabled \
+    -Dintrospection=false \
     -Dgtk:werror=true \
     _build
 unset CCACHE_DISABLE

.gitlab/issue_templates/Bug.md

@@ -1,13 +1,4 @@
-<!--
-  Please, read the CONTRIBUTING.md guide on how to file a new issue.
-
-  https://gitlab.gnome.org/GNOME/gtk/-/blob/master/CONTRIBUTING.md
--->
 ## Steps to reproduce
-<!--
-  Please, explain the sequence of actions necessary to reproduce the
-  bug
--->
 
  1. ...
  2. ...
@@ -41,8 +32,5 @@
 ## Additional information
 <!--
  - Screenshots or screen recordings are useful for visual errors
-  - Attaching a screenshot or a video without explaining the current
-    behavior and the actions necessary to reproduce the bug will lead
-    to the bug being closed
  - Please report any warning or message printed on the terminal
 -->

.gitlab/issue_templates/Crash.md

@@ -1,14 +1,4 @@
-<!--
-  Please, read the CONTRIBUTING.md guide on how to file a new issue.
-
-  https://gitlab.gnome.org/GNOME/gtk/-/blob/master/CONTRIBUTING.md
--->
-
 ## Steps to reproduce
-<!--
-  Please, explain the sequence of actions necessary to reproduce the
-  crash
--->
 
  1. ...
  2. ...

AUTHORS

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

CONTRIBUTING.md

@@ -56,12 +56,6 @@ If the issue includes a crash, you should also include:
  0. the eventual warnings printed on the terminal
  0. a backtrace, obtained with tools such as GDB or LLDB
 
-It is fine to include screenshots of screen recordings to demonstrate
-an issue that is best to understand visually, but please don't just
-dump screen recordings without further details into issues. It is
-essential that the problem is described in enough detail to reproduce
-it without watching a video.
-
 For small issues, such as:
 
  - spelling/grammar fixes in the documentation

README.md

@@ -10,16 +10,14 @@ GTK is a multi-platform toolkit for creating graphical user interfaces.
 Offering a complete set of widgets, GTK is suitable for projects ranging
 from small one-off projects to complete application suites.
 
-GTK is a free and open-source software project. The licensing terms
-for GTK, the GNU LGPL, allow it to be used by all developers, including those
-developing proprietary software, without any license fees or royalties.
-
-GTK is hosted by the GNOME project (thanks!) and used by a wide variety
-of applications and projects.
+GTK is free software and part of the GNU Project. However, the
+licensing terms for GTK, the GNU LGPL, allow it to be used by all
+developers, including those developing proprietary software, without any
+license fees or royalties.
 
 The official download location
 
-  - https://download.gnome.org/sources/gtk/
+  - https://download.gnome.org/sources/gtk+
 
 The official web site
 
@@ -34,16 +32,9 @@ Discussion forum
   - https://discourse.gnome.org/c/platform/core/
 
 Nightly documentation can be found at
-  - Gtk: https://gnome.pages.gitlab.gnome.org/gtk/gtk4/
-  - Gdk: https://gnome.pages.gitlab.gnome.org/gtk/gdk4/
-  - Gsk: https://gnome.pages.gitlab.gnome.org/gtk/gsk4/
-
-Nightly flatpaks of our demos can be installed from the
-[GNOME Nightly](https://wiki.gnome.org/Apps/Nightly) repository:
-  - `flatpak remote-add --if-not-exists gnome-nightly https://nightly.gnome.org/gnome-nightly.flatpakrepo` 
-  - `flatpak install gnome-nightly org.gtk.Demo4`
-  - `flatpak install gnome-nightly org.gtk.WidgetFactory4`
-  - `flatpak install gnome-nightly org.gtk.IconBrowser4`
+  - Gtk: https://gnome.pages.gitlab.gnome.org/gtk/gtk/
+  - Gdk: https://gnome.pages.gitlab.gnome.org/gtk/gdk/
+  - Gsk: https://gnome.pages.gitlab.gnome.org/gtk/gsk/
 
 Building and installing
 -----------------------
@@ -58,11 +49,11 @@ In order to build GTK you will need:
 You will also need various dependencies, based on the platform you are
 building for:
 
-  - [GLib](https://download.gnome.org/sources/glib/)
-  - [GdkPixbuf](https://download.gnome.org/sources/gdk-pixbuf/)
-  - [GObject-Introspection](https://download.gnome.org/sources/gobject-introspection/)
-  - [Cairo](https://www.cairographics.org/)
-  - [Pango](https://download.gnome.org/sources/pango/)
+  - [GLib](https://download.gnome.org/sources/glib)
+  - [GdkPixbuf](https://download.gnome.org/sources/gdk-pixbuf)
+  - [GObject-Introspection](https://download.gnome.org/sources/gobject-introspection)
+  - [Cairo](https://www.cairographics.org)
+  - [Pango](https://download.gnome.org/sources/pango)
   - [Epoxy](https://github.com/anholt/libepoxy)
   - [Graphene](https://github.com/ebassi/graphene)
   - [Xkb-common](https://github.com/xkbcommon/libxkbcommon)
@@ -153,17 +144,14 @@ Contributing to GTK
 Please, follow the [contribution guide](./CONTRIBUTING.md) to know how to
 start contributing to GTK.
 
-If you want to support GTK financially, please consider donating to
-the GNOME project, which runs the infrastructure hosting GTK.
-
 Release notes
 -------------
 
 The release notes for GTK are part of the migration guide in the API
 reference. See:
 
- - [3.x release notes](https://developer.gnome.org/gtk3/stable/gtk-migrating-2-to-3.html)
- - [4.x release notes](https://docs.gtk.org/gtk4/migrating-3to4.html)
+ - [3.x release notes](https://developer.gnome.org/gtk3/unstable/gtk-migrating-2-to-3.html)
+ - [4.x release notes](https://developer.gnome.org/gtk4/unstable/gtk-migrating-3-to-4.html)
 
 Licensing terms
 ---------------

build-aux/flatpak/lua-5.1.5-so.patch

@@ -1,43 +0,0 @@
-diff -ur lua-5.1.4/src/Makefile lua-5.1.4-new/src/Makefile
---- lua-5.1.4/src/Makefile	2008-01-19 20:37:58.000000000 +0100
-+++ lua-5.1.4-new/src/Makefile	2012-02-23 18:26:43.000000000 +0100
-@@ -23,6 +23,7 @@
- PLATS= aix ansi bsd freebsd generic linux macosx mingw posix solaris
- 
- LUA_A=	liblua.a
-+LUA_SO=	liblua.so
- CORE_O=	lapi.o lcode.o ldebug.o ldo.o ldump.o lfunc.o lgc.o llex.o lmem.o \
- 	lobject.o lopcodes.o lparser.o lstate.o lstring.o ltable.o ltm.o  \
- 	lundump.o lvm.o lzio.o
-@@ -36,7 +37,7 @@
- LUAC_O=	luac.o print.o
- 
- ALL_O= $(CORE_O) $(LIB_O) $(LUA_O) $(LUAC_O)
--ALL_T= $(LUA_A) $(LUA_T) $(LUAC_T)
-+ALL_T= $(LUA_A) $(LUA_SO) $(LUA_T) $(LUAC_T)
- ALL_A= $(LUA_A)
- 
- default: $(PLAT)
-@@ -51,6 +52,11 @@
- 	$(AR) $@ $?
- 	$(RANLIB) $@
- 
-+$(LUA_SO): $(CORE_O) $(LIB_O)
-+	$(CC) -shared -ldl -Wl,-soname,$(LUA_SO).$(V) -o $@.$(R) $? -lm $(MYLDFLAGS)
-+	ln -sf $(LUA_SO).$(R) $(LUA_SO).$(V)
-+	ln -sf $(LUA_SO).$(R) $(LUA_SO)
-+
- $(LUA_T): $(LUA_O) $(LUA_A)
- 	$(CC) -o $@ $(MYLDFLAGS) $(LUA_O) $(LUA_A) $(LIBS)
- 
---- lua-5.1.4/Makefile	2008-08-12 02:40:48.000000000 +0200
-+++ lua-5.1.4-new/Makefile	2012-02-23 19:06:32.000000000 +0100
-@@ -53,7 +53,7 @@
- all:	$(PLAT)
- 
- $(PLATS) clean:
--	cd src && $(MAKE) $@
-+	cd src && $(MAKE) $@ V=$(V) R=$(R)
- 
- test:	dummy
- 	src/lua test/hello.lua

build-aux/flatpak/org.gtk.Demo4.json

@@ -35,15 +35,15 @@
     "modules" : [
         {
             "name" : "wayland",
-            "buildsystem" : "meson",
+            "buildsystem" : "autotools",
             "builddir" : true,
             "config-opts" : [
-                "-Ddocumentation=false"
+                "--disable-documentation"
             ],
             "sources" : [
                 {
                     "type" : "git",
-                    "url" : "https://gitlab.freedesktop.org/wayland/wayland.git"
+                    "url" : "https://github.com/wayland-project/wayland.git"
                 }
             ]
         },
@@ -93,77 +93,6 @@
                 }
             ]
         },
-        {
-            "name": "boost",
-            "buildsystem": "simple",
-            "build-commands": [
-                "./bootstrap.sh --prefix=/app --with-libraries=date_time,filesystem,iostreams,locale,regex,system,thread,python,program_options,test,serialization",
-                "./b2 --build-type=minimal link=shared -j $FLATPAK_BUILDER_N_JOBS",
-                "./b2 --build-type=minimal link=shared install"
-             ],
-             "sources": [
-                 {
-                     "type": "archive",
-                     "url": "https://boostorg.jfrog.io/artifactory/main/release/1.69.0/source/boost_1_69_0.tar.bz2",
-                     "sha256": "8f32d4617390d1c2d16f26a27ab60d97807b35440d45891fa340fc2648b04406"
-                 }
-            ]
-        },
-        {
-            "name": "lua-5.1",
-            "buildsystem": "simple",
-            "build-commands": [
-                "make -j $FLATPAK_BUILDER_N_JOBS CFLAGS=\"$CFLAGS -fPIC -DLUA_USE_LINUX\" linux",
-                "make INSTALL_TOP=$FLATPAK_DEST TO_LIB='liblua.a liblua.so.5.1.5' install",
-                "ln -sf liblua.so.5.1.5 $FLATPAK_DEST/lib/liblua.so",
-                "ln -sf liblua.so.5.1.5 $FLATPAK_DEST/lib/liblua.so.5.1",
-                "install -Dm0644 etc/lua.pc $FLATPAK_DEST/lib/pkgconfig/lua.pc",
-                "ln -sf lua.pc $FLATPAK_DEST/lib/pkgconfig/lua51.pc",
-                "ln -sf lua.pc $FLATPAK_DEST/lib/pkgconfig/lua5.1.pc",
-                "ln -sf lua.pc $FLATPAK_DEST/lib/pkgconfig/lua-5.1.pc"
-            ],
-            "sources": [
-                {
-                    "type": "archive",
-                    "url": "https://www.lua.org/ftp/lua-5.1.5.tar.gz",
-                    "sha256": "2640fc56a795f29d28ef15e13c34a47e223960b0240e8cb0a82d9b0738695333"
-                },
-                {
-                    "type": "patch",
-                    "path": "lua-5.1.5-so.patch"
-                },
-                {
-                    "type": "shell",
-                    "commands": [
-                        "sed -i \"s|/usr/local|$FLATPAK_DEST|\" etc/lua.pc src/luaconf.h"
-                    ]
-                }
-            ],
-            "cleanup": [
-                "*.a",
-                "/bin",
-                "/include",
-                "/lib/pkgconfig",
-                "/man"
-            ]
-        },
-        {
-            "name" : "highlight",
-            "buildsystem" : "simple",
-            "builddir" : true,
-            "build-commands" : [
-                "sed -i -e 's#^PREFIX = /usr#PREFIX = /app#' makefile",
-                "make",
-                "make install"
-            ],
-            "sources" : [
-                {
-                    "type" : "archive",
-                    "url" : "http://www.andre-simon.de/zip/highlight-4.0.tar.bz2",
-                    "sha256" : "f40dcba26e011a2c67df874f4d9b0238c2c6b065163ce8de3d8371b9dfce864d"
-                }
-            ]
-        },
         {
             "name" : "gtk",
             "buildsystem" : "meson",
@@ -171,8 +100,7 @@
             "config-opts" : [
                 "--libdir=/app/lib",
                 "-Denable_vulkan=no",
-                "-Dbuildtype=debugoptimized",
-                "-Dprofile=devel"
+                "-Dbuildtype=debugoptimized"
             ],
             "sources" : [
                 {

build-aux/flatpak/org.gtk.IconBrowser4.json

@@ -35,15 +35,15 @@
     "modules" : [
         {
             "name" : "wayland",
-            "buildsystem" : "meson",
+            "buildsystem" : "autotools",
             "builddir" : true,
             "config-opts" : [
-                "-Ddocumentation=false"
+                "--disable-documentation"
             ],
             "sources" : [
                 {
                     "type" : "git",
-                    "url" : "https://gitlab.freedesktop.org/wayland/wayland.git"
+                    "url" : "https://github.com/wayland-project/wayland.git"
                 }
             ]
         },
@@ -100,8 +100,7 @@
             "config-opts" : [
                 "--libdir=/app/lib",
                 "-Denable_vulkan=no",
-                "-Dbuildtype=debugoptimized",
-                "-Dprofile=devel"
+                "-Dbuildtype=debugoptimized"
             ],
             "sources" : [
                 {

build-aux/flatpak/org.gtk.WidgetFactory4.json

@@ -35,15 +35,15 @@
     "modules" : [
         {
             "name" : "wayland",
-            "buildsystem" : "meson",
+            "buildsystem" : "autotools",
             "builddir" : true,
             "config-opts" : [
-                "-Ddocumentation=false"
+                "--disable-documentation"
             ],
             "sources" : [
                 {
                     "type" : "git",
-                    "url" : "https://gitlab.freedesktop.org/wayland/wayland.git"
+                    "url" : "https://github.com/wayland-project/wayland.git"
                 }
             ]
         },
@@ -100,8 +100,7 @@
             "config-opts" : [
                 "--libdir=/app/lib",
                 "-Denable_vulkan=no",
-                "-Dbuildtype=debugoptimized",
-                "-Dprofile=devel"
+                "-Dbuildtype=debugoptimized"
             ],
             "sources" : [
                 {

build-aux/meson/dist-data.py

@@ -1,39 +0,0 @@
-#!/usr/bin/env python3
-
-import os
-import shutil
-import subprocess
-
-from pathlib import PurePath
-
-
-stylesheets = [
-    'gtk/theme/Default/Default-light.css',
-    'gtk/theme/Default/Default-dark.css',
-    'gtk/theme/Default/Default-hc.css',
-    'gtk/theme/Default/Default-hc-dark.css',
-]
-
-references = [
-    'docs/reference/gtk/gtk4',
-    'docs/reference/gsk/gsk4',
-    'docs/reference/gdk/gdk4',
-    'docs/reference/gdk/gdk4-wayland',
-    'docs/reference/gdk/gdk4-x11',
-]
-
-sourceroot = os.environ.get('MESON_SOURCE_ROOT')
-buildroot = os.environ.get('MESON_BUILD_ROOT')
-distroot = os.environ.get('MESON_DIST_ROOT')
-
-for stylesheet in stylesheets:
-    stylesheet_path = PurePath(stylesheet)
-    src = PurePath(sourceroot, stylesheet_path.with_suffix('.scss'))
-    dst = PurePath(distroot, stylesheet_path)
-    subprocess.call(['sassc', '-a', '-M', '-t', 'compact', src, dst])
-
-for reference in references:
-    src_path = os.path.join(buildroot, reference)
-    if os.path.isdir(src_path):
-        dst_path = os.path.join(distroot, reference)
-        shutil.copytree(src_path, dst_path)

build-aux/meson/gen-demo-header.py

@@ -1,26 +0,0 @@
-#!/usr/bin/env python3
-
-import os
-import subprocess
-import sys
-
-repodir = sys.argv[1]
-profile = sys.argv[2]
-
-sys.stdout.write("/* This file is auto-generated. Do not edit. */\n")
-sys.stdout.write("#pragma once\n")
-sys.stdout.write("\n")
-sys.stdout.write(f"#define PROFILE \"{profile}\"\n")
-
-short_sha = os.environ.get('CI_COMMIT_SHORT_SHA')
-if short_sha is None:
-    cmd = ["git", "-C", repodir, "rev-parse", "--short", "HEAD"]
-    try:
-        with subprocess.Popen(cmd, stdout=subprocess.PIPE) as p:
-            short_sha = p.stdout.read().decode('utf-8').rstrip("\n")
-    except FileNotFoundError:
-        short_sha = ''
-        if profile != 'default':
-            short_sha = 'devel'
-
-sys.stdout.write(f"#define VCS_TAG \"{short_sha}\"\n")

build-aux/meson/post-install.py

@@ -1,21 +1,20 @@
 #!/usr/bin/env python3
-
-import os
-import sys
-import subprocess
-
-if 'DESTDIR' not in os.environ:
-    gtk_api_version = sys.argv[1]
-    gtk_abi_version = sys.argv[2]
+
+import os
+import sys
+import subprocess
+
+if 'DESTDIR' not in os.environ:
+    gtk_api_version = sys.argv[1]
+    gtk_abi_version = sys.argv[2]
     gtk_libdir = sys.argv[3]
     gtk_datadir = sys.argv[4]
-    gtk_bindir = sys.argv[5]
-
-    gtk_moduledir = os.path.join(gtk_libdir, 'gtk-' + gtk_api_version, gtk_abi_version)
-    gtk_printmodule_dir = os.path.join(gtk_moduledir, 'printbackends')
-    gtk_immodule_dir = os.path.join(gtk_moduledir, 'immodules')
-
-    print('Compiling GSettings schemas...')
+
+    gtk_moduledir = os.path.join(gtk_libdir, 'gtk-' + gtk_api_version, gtk_abi_version)
+    gtk_printmodule_dir = os.path.join(gtk_moduledir, 'printbackends')
+    gtk_immodule_dir = os.path.join(gtk_moduledir, 'immodules')
+
+    print('Compiling GSettings schemas...')
     glib_compile_schemas = subprocess.check_output(['pkg-config',
                                                    '--variable=glib_compile_schemas',
                                                    'gio-2.0']).strip()
@@ -23,14 +22,13 @@ if 'DESTDIR' not in os.environ:
         # 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...')
-    update_icon_cache = os.path.join(gtk_bindir, 'gtk4-update-icon-cache')
-    subprocess.call([update_icon_cache, '-q', '-t' ,'-f',
-                    os.path.join(gtk_datadir, 'icons', 'hicolor')])
-
-    print('Updating module cache for print backends...')
+                    os.path.join(gtk_datadir, 'glib-2.0', 'schemas')])
+
+    print('Updating icon cache...')
+    subprocess.call(['gtk4-update-icon-cache', '-q', '-t' ,'-f',
+                    os.path.join(gtk_datadir, 'icons', 'hicolor')])
+
+    print('Updating module cache for print backends...')
     os.makedirs(gtk_printmodule_dir, exist_ok=True)
     gio_querymodules = subprocess.check_output(['pkg-config',
                                                 '--variable=gio_querymodules',
@@ -39,7 +37,7 @@ if 'DESTDIR' not in os.environ:
         # 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...')
+
+    print('Updating module cache for input methods...')
     os.makedirs(gtk_immodule_dir, exist_ok=True)
     subprocess.call([gio_querymodules, gtk_immodule_dir])

config.h.meson

@@ -0,0 +1,277 @@
+/* config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* always defined to indicate that i18n is enabled */
+#define ENABLE_NLS 1
+
+/* The prefix for our gettext translation domains. */
+#mesondefine GETTEXT_PACKAGE
+
+/* Disable deprecation warnings from glib */
+#mesondefine GLIB_DISABLE_DEPRECATION_WARNINGS
+
+/* Define the location where the catalogs will be installed */
+#mesondefine GTK_LOCALEDIR
+
+/* Define to 1 if you have the `bind_textdomain_codeset' function. */
+#mesondefine HAVE_BIND_TEXTDOMAIN_CODESET
+
+/* Have the cloudproviders library */
+#mesondefine HAVE_CLOUDPROVIDERS
+
+/* define if we have colord */
+#mesondefine HAVE_COLORD
+
+/* Define to 1 if you have the <crt_externs.h> header file. */
+#mesondefine HAVE_CRT_EXTERNS_H
+
+/* Define to 1 if you have the `dcgettext' function. */
+#mesondefine HAVE_DCGETTEXT
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#mesondefine HAVE_DLFCN_H
+
+/* Have the ffmpeg library */
+#mesondefine HAVE_FFMPEG
+
+/* Define to 1 if you have the <ftw.h> header file. */
+#mesondefine HAVE_FTW_H
+
+/* Define to 1 if you have the `getpagesize' function. */
+#mesondefine HAVE_GETPAGESIZE
+
+/* Define to 1 if you have the `getresuid' function. */
+#mesondefine HAVE_GETRESUID
+
+/* Define if gio-unix is available */
+#mesondefine HAVE_GIO_UNIX
+
+/* Define if GStreamer support is available */
+#mesondefine HAVE_GSTREAMER
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#mesondefine HAVE_INTTYPES_H
+
+/* Define to 1 if the system has the type `IPrintDialogCallback'. */
+#mesondefine HAVE_IPRINTDIALOGCALLBACK
+
+/* Define to 1 if you have the <locale.h> header file. */
+#mesondefine HAVE_LOCALE_H
+
+/* Define to 1 if you have the `lstat' function. */
+#mesondefine HAVE_LSTAT
+
+/* Define to 1 if you have the `mallinfo' function. */
+#mesondefine HAVE_MALLINFO
+
+/* Define to 1 if you have the <memory.h> header file. */
+#mesondefine HAVE_MEMORY_H
+
+/* Define to 1 if you have the `mkstemp' function. */
+#mesondefine HAVE_MKSTEMP
+
+/* Define to 1 if you have a working `mmap' system call. */
+#mesondefine HAVE_MMAP
+
+/* Define to 1 if you have the `posix_fallocate' function. */
+#mesondefine HAVE_POSIX_FALLOCATE
+
+/* Have the Xrandr extension library */
+#mesondefine HAVE_RANDR
+
+/* Have the Xrandr 1.5 extension library */
+#mesondefine HAVE_RANDR15
+
+/* Define to 1 if you have the `sincos' function. */
+#mesondefine HAVE_SINCOS
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#mesondefine HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#mesondefine HAVE_STDLIB_H
+
+/* Define to 1 if you have the <strings.h> header file. */
+#mesondefine HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#mesondefine HAVE_STRING_H
+
+/* Define to 1 if you have the <sys/mman.h> header file. */
+#mesondefine HAVE_SYS_MMAN_H
+
+/* Define to 1 if you have the <sys/param.h> header file. */
+#mesondefine HAVE_SYS_PARAM_H
+
+/* Have the sysprof-capture library */
+#mesondefine HAVE_SYSPROF
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#mesondefine HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#mesondefine HAVE_SYS_TIME_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#mesondefine HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#mesondefine HAVE_UNISTD_H
+
+/* Have the XCOMPOSITE X extension */
+#mesondefine HAVE_XCOMPOSITE
+
+/* Have the Xcursor library */
+#mesondefine HAVE_XCURSOR
+
+/* Have the XDAMAGE X extension */
+#mesondefine HAVE_XDAMAGE
+
+/* Have the XFIXES X extension */
+#mesondefine HAVE_XFIXES
+
+/* Define to 1 if XFree Xinerama is available */
+#mesondefine HAVE_XFREE_XINERAMA
+
+/* Have XGenericEvent */
+#mesondefine HAVE_XGENERICEVENTS
+
+/* Define to use XKB extension */
+#mesondefine HAVE_XKB
+
+/* Have the SYNC extension library */
+#mesondefine HAVE_XSYNC
+
+/* Define to 1 if you have the `_lock_file' function */
+#mesondefine HAVE__LOCK_FILE
+
+/* Define to 1 if you have the `flockfile' function */
+#mesondefine HAVE_FLOCKFILE
+
+/* Define if _NL_MEASUREMENT_MEASUREMENT is available */
+#mesondefine HAVE__NL_MEASUREMENT_MEASUREMENT
+
+/* Define if _NL_PAPER_HEIGHT is available */
+#mesondefine HAVE__NL_PAPER_HEIGHT
+
+/* Define if _NL_PAPER_WIDTH is available */
+#mesondefine HAVE__NL_PAPER_WIDTH
+
+/* Define if _NL_TIME_FIRST_WEEKDAY is available */
+#mesondefine HAVE__NL_TIME_FIRST_WEEKDAY
+
+/* Define to the sub-directory where libtool stores uninstalled libraries. */
+#mesondefine LT_OBJDIR
+
+/* Define to 1 if your C compiler doesn't accept -c and -o together. */
+#mesondefine NO_MINUS_C_MINUS_O
+
+/* Define to the address where bug reports for this package should be sent. */
+#mesondefine PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#mesondefine PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#mesondefine PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#mesondefine PACKAGE_TARNAME
+
+/* Define to the home page for this package. */
+#mesondefine PACKAGE_URL
+
+/* Define to the version of this package. */
+#mesondefine PACKAGE_VERSION
+
+/* Use NSBundle functions to determine load paths for libraries, translations,
+   etc. */
+#mesondefine QUARTZ_RELOCATION
+
+/* Define to 1 if you have the ANSI C header files. */
+#mesondefine STDC_HEADERS
+
+/* Enable extensions on AIX 3, Interix.  */
+#ifndef _ALL_SOURCE
+# undef _ALL_SOURCE
+#endif
+/* Enable GNU extensions on systems that have them.  */
+#ifndef _GNU_SOURCE
+# undef _GNU_SOURCE
+#endif
+/* Enable threading extensions on Solaris.  */
+#ifndef _POSIX_PTHREAD_SEMANTICS
+# undef _POSIX_PTHREAD_SEMANTICS
+#endif
+/* Enable extensions on HP NonStop.  */
+#ifndef _TANDEM_SOURCE
+# undef _TANDEM_SOURCE
+#endif
+/* Enable general extensions on Solaris.  */
+#ifndef __EXTENSIONS__
+# undef __EXTENSIONS__
+#endif
+
+
+/* Define to 1 if XInput 2.2 is available */
+#mesondefine XINPUT_2_2
+
+/* Define to 1 if the X Window System is missing or not being used. */
+#mesondefine X_DISPLAY_MISSING
+
+/* Enable large inode numbers on Mac OS X 10.5.  */
+#ifndef _DARWIN_USE_64_BIT_INODE
+# define _DARWIN_USE_64_BIT_INODE 1
+#endif
+
+/* Number of bits in a file offset, on hosts where this is settable. */
+#mesondefine _FILE_OFFSET_BITS
+
+/* defines how to decorate public symbols while building */
+#mesondefine _GDK_EXTERN
+
+/* Define for large files, on AIX-style hosts. */
+#mesondefine _LARGE_FILES
+
+/* Define to 1 if on MINIX. */
+#mesondefine _MINIX
+
+/* Define to 2 if the system does not provide POSIX.1 features except with
+   this defined. */
+#mesondefine _POSIX_1_SOURCE
+
+/* Define to 1 if you need to in order for `stat' and other things to work. */
+#mesondefine _POSIX_SOURCE
+
+/* Define to `int' if <sys/types.h> doesn't define. */
+#mesondefine gid_t
+
+/* Define to `int' if <sys/types.h> doesn't define. */
+#mesondefine uid_t
+
+/* Define to 1 if linux/memfd.h exists */
+#mesondefine HAVE_LINUX_MEMFD_H
+
+#mesondefine HAVE_LINUX_INPUT_H
+
+#mesondefine HAVE_DEV_EVDEV_INPUT_H
+
+#mesondefine GTK_SYSCONFDIR
+
+#mesondefine GTK_LOCALEDIR
+
+#mesondefine GTK_DATADIR
+
+#mesondefine GTK_LIBDIR
+
+#mesondefine GTK_PRINT_BACKENDS
+
+#mesondefine HAVE_CAIRO_SCRIPT_INTERPRETER
+
+#mesondefine HAVE_HARFBUZZ
+
+#mesondefine HAVE_PANGOFT
+
+#mesondefine ISO_CODES_PREFIX
+
+/* Define if tracker3 is available */
+#mesondefine HAVE_TRACKER3

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

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

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

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

demos/constraint-editor/constraint-editor.c

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

demos/constraint-editor/constraint-editor.ui

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

demos/constraint-editor/constraint-view.c

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

demos/constraint-editor/meson.build

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

demos/gtk-demo/alienplanet.glsl

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

demos/gtk-demo/application.c

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

demos/gtk-demo/assistant.c

@@ -1,8 +1,8 @@
 /* Assistant
  *
- * Demonstrates a sample multi-step assistant with GtkAssistant. Assistants
- * are used to divide an operation into several simpler sequential steps,
- * and to guide the user through these steps.
+ * Demonstrates a sample multi-step assistant. Assistants are used to divide
+ * an operation into several simpler sequential steps, and to guide the user
+ * through these steps.
  */
 
 #include <gtk/gtk.h>
@@ -98,9 +98,6 @@ create_page1 (GtkWidget *assistant)
   gtk_box_append (GTK_BOX (box), label);
 
   entry = gtk_entry_new ();
-  gtk_accessible_update_relation (GTK_ACCESSIBLE (entry),
-                                  GTK_ACCESSIBLE_RELATION_LABELLED_BY, label, NULL,
-                                  -1);
   gtk_entry_set_activates_default (GTK_ENTRY (entry), TRUE);
   gtk_widget_set_valign (entry, GTK_ALIGN_CENTER);
   gtk_box_append (GTK_BOX (box), entry);

demos/gtk-demo/background.glsl

@@ -1,26 +0,0 @@
-uniform float u_time;
-
-void
-mainImage(out vec4 fragColor, in vec2 fragCoord, in vec2 resolution, in vec2 uv)
-{
-  vec2 pos = (fragCoord.xy * 2.0 - resolution.xy)/ min (resolution.x, resolution.y) ;
-
-  float t0 = sin ((u_time + 0.00)*1.0);
-  float t1 = sin ((u_time + 0.30)*0.4);
-  float t2 = cos ((u_time + 0.23)*0.9);
-  float t3 = cos ((u_time + 0.41)*0.6);
-  float t4 = cos ((u_time + 0.11)*0.3);
-
-  vec2 p0 = vec2 (t1, t0) ;
-  vec2 p1 = vec2 (t2, t3) ;
-  vec2 p2 = vec2 (t4, t3) ;
-
-  float r = 1.0/distance (pos, p0);
-  float g = 1.0/distance (pos, p1);
-  float b = 1.0/distance (pos, p2);
-  float sum = r + g + b;
-
-  float alpha = 1.0 - pow (1.0/(sum), 40.0)*pow (10.0, 40.0*0.7);
-
-  fragColor = vec4 (r*0.5, g*0.5, b*0.5, 1.0) * alpha;
-}

demos/gtk-demo/blendmodes.ui

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

demos/gtk-demo/builder.c

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

demos/gtk-demo/cogs.glsl

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

demos/gtk-demo/cogs2.glsl

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

demos/gtk-demo/combobox.c

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

demos/gtk-demo/constraints.c

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

demos/gtk-demo/constraints2.c

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

demos/gtk-demo/constraints3.c

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

demos/gtk-demo/constraints_builder.c

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

demos/gtk-demo/constraints_builder.ui

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

demos/gtk-demo/crosswarp.glsl

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

demos/gtk-demo/css_accordion.c

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

demos/gtk-demo/css_basics.c

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

demos/gtk-demo/css_multiplebgs.c

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

demos/gtk-demo/css_pixbufs.c

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

demos/gtk-demo/demo.gresource.xml

@@ -18,9 +18,6 @@
     <file>demoimage.c</file>
     <file>demoimage.h</file>
   </gresource>
-  <gresource prefix="/constraints_builder">
-    <file>constraints_builder.ui</file>
-  </gresource>
   <gresource prefix="/css_accordion">
     <file>css_accordion.css</file>
     <file>reset.css</file>
@@ -43,11 +40,6 @@
     <file>cssview.css</file>
     <file>reset.css</file>
   </gresource>
-  <gresource prefix="/dropdown">
-    <file>suggestionentry.h</file>
-    <file>suggestionentry.c</file>
-    <file>suggestionentry.css</file>
-  </gresource>
   <gresource prefix="/theming_style_classes">
     <file>theming.ui</file>
   </gresource>
@@ -120,45 +112,15 @@
   <gresource prefix="/dnd">
     <file>dnd.css</file>
   </gresource>
-  <gresource prefix="/errorstates">
-    <file>errorstates.ui</file>
-  </gresource>
   <gresource prefix="/fishbowl">
     <file>fishbowl.ui</file>
     <file>gtkfishbowl.c</file>
     <file>gtkfishbowl.h</file>
   </gresource>
-  <gresource prefix="/frames">
-    <file>frames.ui</file>
-  </gresource>
   <gresource prefix="/gears">
     <file>gtkgears.c</file>
     <file>gtkgears.h</file>
   </gresource>
-  <gresource prefix="/shadertoy">
-    <file>gtkshadertoy.c</file>
-    <file>gtkshadertoy.h</file>
-    <file>alienplanet.glsl</file>
-    <file>mandelbrot.glsl</file>
-    <file>neon.glsl</file>
-    <file>cogs.glsl</file>
-    <file>glowingstars.glsl</file>
-  </gresource>
-  <gresource prefix="/gltransition">
-    <file>gtkshaderstack.c</file>
-    <file>gtkshaderstack.h</file>
-    <file>gtkshaderbin.h</file>
-    <file>gtkshaderbin.c</file>
-    <file>gskshaderpaintable.h</file>
-    <file>gskshaderpaintable.c</file>
-    <file>wind.glsl</file>
-    <file>radial.glsl</file>
-    <file>crosswarp.glsl</file>
-    <file>kaleidoscope.glsl</file>
-    <file>cogs2.glsl</file>
-    <file>ripple.glsl</file>
-    <file>background.glsl</file>
-  </gresource>
   <gresource prefix="/iconscroll">
     <file>iconscroll.ui</file>
   </gresource>
@@ -195,9 +157,6 @@
   <gresource prefix="/listview_settings">
     <file>listview_settings.ui</file>
   </gresource>
-  <gresource prefix="/listview_ucd_data/">
-    <file>ucdnames.data</file>
-  </gresource>
   <gresource prefix="/listview_weather">
     <file compressed="true">listview_weather.txt</file>
   </gresource>
@@ -205,21 +164,6 @@
     <file compressed="true">color.names.txt</file>
     <file>listview_colors.css</file>
   </gresource>
-  <gresource prefix="/main">
-    <file>fontify.c</file>
-    <file>fontify.h</file>
-    <file>main.ui</file>
-  </gresource>
-  <gresource prefix="/menu">
-    <file>demo3widget.c</file>
-    <file>demo3widget.h</file>
-    <file>demo3widget.ui</file>
-  </gresource>
-  <gresource prefix="/paintable_svg">
-    <file>svgpaintable.h</file>
-    <file>svgpaintable.c</file>
-    <file>org.gtk.gtk4.NodeEditor.Devel.svg</file>
-  </gresource>
   <gresource prefix="/shortcuts">
     <file>shortcuts.ui</file>
     <file>shortcuts-builder.ui</file>
@@ -239,15 +183,9 @@
     <file>revealer.ui</file>
   </gresource>
   <gresource prefix="/images">
-    <file>pixbufpaintable.h</file>
-    <file>pixbufpaintable.c</file>
     <file>alphatest.png</file>
     <file>floppybuddy.gif</file>
     <file>gtk-logo.webm</file>
-    <file alias="org.gtk.Demo4.svg">data/scalable/apps/org.gtk.Demo4.svg</file>
-  </gresource>
-  <gresource prefix="/video-player">
-    <file>bbb.png</file>
   </gresource>
   <gresource prefix="/sources">
     <file>application_demo.c</file>
@@ -256,9 +194,8 @@
     <file>clipboard.c</file>
     <file>combobox.c</file>
     <file>constraints.c</file>
-    <file>constraints_interactive.c</file>
-    <file>constraints_vfl.c</file>
-    <file>constraints_builder.c</file>
+    <file>constraints2.c</file>
+    <file>constraints3.c</file>
     <file>css_accordion.c</file>
     <file>css_basics.c</file>
     <file>css_blendmodes.c</file>
@@ -273,20 +210,17 @@
     <file>editable_cells.c</file>
     <file>entry_completion.c</file>
     <file>entry_undo.c</file>
-    <file>errorstates.c</file>
     <file>expander.c</file>
     <file>filtermodel.c</file>
     <file>fishbowl.c</file>
     <file>fixed.c</file>
     <file>flowbox.c</file>
-    <file>frames.c</file>
     <file>font_features.c</file>
     <file>fontplane.c</file>
     <file>fontrendering.c</file>
     <file>gears.c</file>
     <file>gestures.c</file>
     <file>glarea.c</file>
-    <file>gltransition.c</file>
     <file>headerbar.c</file>
     <file>hypertext.c</file>
     <file>iconscroll.c</file>
@@ -298,30 +232,24 @@
     <file>layoutmanager2.c</file>
     <file>links.c</file>
     <file>listbox.c</file>
-    <file>listbox_controls.c</file>
+    <file>listbox2.c</file>
     <file>listview_applauncher.c</file>
     <file>listview_colors.c</file>
     <file>listview_clocks.c</file>
     <file>listview_filebrowser.c</file>
     <file>listview_minesweeper.c</file>
     <file>listview_settings.c</file>
-    <file>listview_ucd.c</file>
     <file>listview_weather.c</file>
     <file>listview_words.c</file>
     <file>list_store.c</file>
-    <file>main.c</file>
     <file>markup.c</file>
-    <file>menu.c</file>
     <file>overlay.c</file>
-    <file>overlay_decorative.c</file>
+    <file>overlay2.c</file>
     <file>paint.c</file>
     <file>pagesetup.c</file>
     <file>paintable.c</file>
     <file>paintable_animated.c</file>
-    <file>paintable_emblem.c</file>
     <file>paintable_mediastream.c</file>
-    <file>paintable_svg.c</file>
-    <file>paintable_symbolic.c</file>
     <file>panes.c</file>
     <file>password_entry.c</file>
     <file>peg_solitaire.c</file>
@@ -332,7 +260,6 @@
     <file>scale.c</file>
     <file>search_entry.c</file>
     <file>search_entry2.c</file>
-    <file>shadertoy.c</file>
     <file>shortcuts.c</file>
     <file>shortcut_triggers.c</file>
     <file>sizegroup.c</file>
@@ -364,8 +291,8 @@
     <file>messages.txt</file>
     <file>apple-red.png</file>
   </gresource>
-  <gresource prefix="/listbox_controls">
-    <file>listbox_controls.ui</file>
+  <gresource prefix="/listbox2">
+    <file>listbox2.ui</file>
   </gresource>
   <gresource prefix="/glarea">
     <file>glarea-gl.fs.glsl</file>

demos/gtk-demo/demo.ui

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

demos/gtk-demo/demo3widget.c

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

demos/gtk-demo/demo3widget.h

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

demos/gtk-demo/demo3widget.ui

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

demos/gtk-demo/demoimage.c

@@ -47,38 +47,6 @@ get_image_paintable (GtkImage *image)
     }
 }
 
-static void
-update_drag_icon (DemoImage   *demo,
-                  GtkDragIcon *icon)
-{
-  const char *icon_name;
-  GdkPaintable *paintable;
-  GtkWidget *image;
-
-  switch (gtk_image_get_storage_type (GTK_IMAGE (demo->image)))
-    {
-    case GTK_IMAGE_PAINTABLE:
-      paintable = gtk_image_get_paintable (GTK_IMAGE (demo->image));
-      image = gtk_image_new_from_paintable (paintable);
-      break;
-    case GTK_IMAGE_ICON_NAME:
-      icon_name = gtk_image_get_icon_name (GTK_IMAGE (demo->image));
-      image = gtk_image_new_from_icon_name (icon_name);
-      break;
-    case GTK_IMAGE_EMPTY:
-    case GTK_IMAGE_GICON:
-    default:
-      g_warning ("Image storage type %d not handled",
-                 gtk_image_get_storage_type (GTK_IMAGE (demo->image)));
-      return;
-    }
-
-  gtk_image_set_pixel_size (GTK_IMAGE (image),
-                            gtk_image_get_pixel_size (GTK_IMAGE (demo->image)));
-
-  gtk_drag_icon_set_child (icon, image);
-}
-
 static void
 drag_begin (GtkDragSource *source,
             GdkDrag       *drag,
@@ -86,8 +54,14 @@ drag_begin (GtkDragSource *source,
 {
   GtkWidget *widget = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (source));
   DemoImage *demo = DEMO_IMAGE (widget);
+  GdkPaintable *paintable;
 
-  update_drag_icon (demo, GTK_DRAG_ICON (gtk_drag_icon_get_for_drag (drag)));
+  paintable = get_image_paintable (GTK_IMAGE (demo->image));
+  if (paintable)
+    {
+      gtk_drag_icon_set_from_paintable (drag, paintable, -2, -2);
+      g_object_unref (paintable);
+    }
 }
 
 static GdkContentProvider *
@@ -100,11 +74,7 @@ prepare_drag (GtkDragSource *source,
   DemoImage *demo = DEMO_IMAGE (widget);
   GdkPaintable *paintable = get_image_paintable (GTK_IMAGE (demo->image));
 
-  /* Textures can be serialized, paintables can't, so special case the textures */
-  if (GDK_IS_TEXTURE (paintable))
-    return gdk_content_provider_new_typed (GDK_TYPE_TEXTURE, paintable);
-  else
-    return gdk_content_provider_new_typed (GDK_TYPE_PAINTABLE, paintable);
+  return gdk_content_provider_new_typed (GDK_TYPE_PAINTABLE, paintable);
 }
 
 static gboolean
@@ -133,11 +103,7 @@ copy_image (GtkWidget *widget,
   GdkPaintable *paintable = get_image_paintable (GTK_IMAGE (demo->image));
   GValue value = G_VALUE_INIT;
 
-  /* Textures can be serialized, paintables can't, so special case the textures */
-  if (GDK_IS_TEXTURE (paintable))
-    g_value_init (&value, GDK_TYPE_TEXTURE);
-  else
-    g_value_init (&value, GDK_TYPE_PAINTABLE);
+  g_value_init (&value, GDK_TYPE_PAINTABLE);
   g_value_set_object (&value, paintable);
   gdk_clipboard_set_value (clipboard, &value);
   g_value_unset (&value);
@@ -146,46 +112,24 @@ copy_image (GtkWidget *widget,
     g_object_unref (paintable);
 }
 
-static void
-paste_image_cb (GObject      *source,
-                GAsyncResult *result,
-                gpointer      data)
-{
-  GdkClipboard *clipboard = GDK_CLIPBOARD (source);
-  DemoImage *demo = DEMO_IMAGE (data);
-  const GValue *value;
-
-  value = gdk_clipboard_read_value_finish (clipboard, result, NULL);
-  if (value == NULL)
-    {
-      gtk_widget_error_bell (GTK_WIDGET (demo));
-      g_object_unref (demo);
-      return;
-    }
-
-  gtk_image_set_from_paintable (GTK_IMAGE (demo->image), g_value_get_object (value));
-  g_object_unref (demo);
-}
-
 static void
 paste_image (GtkWidget *widget,
              const char *action_name,
              GVariant *parameter)
 {
   GdkClipboard *clipboard = gtk_widget_get_clipboard (widget);
-  GType type;
+  DemoImage *demo = DEMO_IMAGE (widget);
+  GdkContentProvider *content = gdk_clipboard_get_content (clipboard);
+  GValue value = G_VALUE_INIT;
+  GdkPaintable *paintable;
 
-  if (gdk_content_formats_contain_gtype (gdk_clipboard_get_formats (clipboard), GDK_TYPE_TEXTURE))
-    type = GDK_TYPE_TEXTURE;
-  else
-    type = GDK_TYPE_PAINTABLE;
+  g_value_init (&value, GDK_TYPE_PAINTABLE);
+  if (!gdk_content_provider_get_value (content, &value, NULL))
+    return;
 
-  gdk_clipboard_read_value_async (clipboard, 
-                                  type,
-                                  G_PRIORITY_DEFAULT,
-                                  NULL,
-                                  paste_image_cb,
-                                  g_object_ref (widget));
+  paintable = GDK_PAINTABLE (g_value_get_object (&value));
+  gtk_image_set_from_paintable (GTK_IMAGE (demo->image), paintable);
+  g_value_unset (&value);
 }
 
 static void

demos/gtk-demo/demotaggedentry.c

@@ -44,23 +44,11 @@ G_DEFINE_TYPE_WITH_CODE (DemoTaggedEntry, demo_tagged_entry, GTK_TYPE_WIDGET,
 static void
 demo_tagged_entry_init (DemoTaggedEntry *entry)
 {
-  GtkCssProvider *provider;
-
   entry->text = gtk_text_new ();
   gtk_widget_set_hexpand (entry->text, TRUE);
   gtk_widget_set_vexpand (entry->text, TRUE);
   gtk_widget_set_parent (entry->text, GTK_WIDGET (entry));
   gtk_editable_init_delegate (GTK_EDITABLE (entry));
-  gtk_editable_set_width_chars (GTK_EDITABLE (entry->text), 6);
-  gtk_editable_set_max_width_chars (GTK_EDITABLE (entry->text), 6);
-  gtk_widget_add_css_class (GTK_WIDGET (entry), "tagged");
-
-  provider = gtk_css_provider_new ();
-  gtk_css_provider_load_from_resource (provider, "/tagged_entry/tagstyle.css");
-  gtk_style_context_add_provider_for_display (gdk_display_get_default (),
-                                              GTK_STYLE_PROVIDER (provider),
-                                              800);
-  g_object_unref (provider);
 }
 
 static void
@@ -128,7 +116,6 @@ demo_tagged_entry_class_init (DemoTaggedEntryClass *klass)
 
   gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BOX_LAYOUT);
   gtk_widget_class_set_css_name (widget_class, "entry");
-  gtk_widget_class_set_accessible_role (widget_class, GTK_ACCESSIBLE_ROLE_TEXT_BOX);
 }
 
 static GtkEditable *
@@ -224,6 +211,7 @@ static void
 demo_tagged_entry_tag_init (DemoTaggedEntryTag *tag)
 {
   GtkGesture *gesture;
+  GtkCssProvider *provider;
 
   tag->box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
   gtk_widget_set_parent (tag->box, GTK_WIDGET (tag));
@@ -233,6 +221,13 @@ demo_tagged_entry_tag_init (DemoTaggedEntryTag *tag)
   gesture = gtk_gesture_click_new ();
   g_signal_connect (gesture, "released", G_CALLBACK (on_released), tag);
   gtk_widget_add_controller (GTK_WIDGET (tag), GTK_EVENT_CONTROLLER (gesture));
+
+  provider = gtk_css_provider_new ();
+  gtk_css_provider_load_from_resource (provider, "/tagged_entry/tagstyle.css");
+  gtk_style_context_add_provider_for_display (gdk_display_get_default (),
+                                              GTK_STYLE_PROVIDER (provider),
+                                              800);
+  g_object_unref (provider);
 }
 
 static void

demos/gtk-demo/dialog.c

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

demos/gtk-demo/dnd.c

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

demos/gtk-demo/drawingarea.c

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

demos/gtk-demo/dropdown.c

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

demos/gtk-demo/entry_completion.c

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

demos/gtk-demo/entry_undo.c

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

demos/gtk-demo/errorstates.c

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

demos/gtk-demo/errorstates.ui

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

demos/gtk-demo/filtermodel.c

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

demos/gtk-demo/filtermodel.ui

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

demos/gtk-demo/fishbowl.c

@@ -9,7 +9,6 @@
 
 #include "gtkfishbowl.h"
 #include "gtkgears.h"
-#include "gskshaderpaintable.h"
 
 const char *const css =
 ".blurred-button {"
@@ -119,12 +118,13 @@ create_label (void)
 static GtkWidget *
 create_video (void)
 {
-  GtkWidget *w = gtk_video_new ();
+  GtkMediaStream *stream = gtk_media_file_new_for_resource ("/images/gtk-logo.webm");
+  GtkWidget *w = gtk_picture_new_for_paintable (GDK_PAINTABLE (stream));
 
   gtk_widget_set_size_request (w, 64, 64);
-  gtk_video_set_loop (GTK_VIDEO (w), TRUE);
-  gtk_video_set_autoplay (GTK_VIDEO (w), TRUE);
-  gtk_video_set_resource (GTK_VIDEO (w), "/images/gtk-logo.webm");
+  gtk_media_stream_set_loop (stream, TRUE);
+  gtk_media_stream_play (stream);
+  g_object_unref (stream);
 
   return w;
 }
@@ -149,38 +149,6 @@ create_switch (void)
   return w;
 }
 
-static gboolean
-update_paintable (GtkWidget     *widget,
-                  GdkFrameClock *frame_clock,
-                  gpointer       user_data)
-{
-  GskShaderPaintable *paintable;
-  gint64 frame_time;
-
-  paintable = GSK_SHADER_PAINTABLE (gtk_picture_get_paintable (GTK_PICTURE (widget)));
-  frame_time = gdk_frame_clock_get_frame_time (frame_clock);
-  gsk_shader_paintable_update_time (paintable, 0, frame_time);
-
-  return G_SOURCE_CONTINUE;
-}
-
-static GtkWidget *
-create_cogs (void)
-{
-  GtkWidget *picture;
-  static GskGLShader *cog_shader = NULL;
-  GdkPaintable *paintable;
-
- if (cog_shader == NULL)
-    cog_shader = gsk_gl_shader_new_from_resource ("/gltransition/cogs2.glsl");
-  paintable = gsk_shader_paintable_new (g_object_ref (cog_shader), NULL);
-  picture = gtk_picture_new_for_paintable (paintable);
-  gtk_widget_set_size_request (picture, 150, 75);
-  gtk_widget_add_tick_callback (picture, update_paintable, NULL, NULL);
-
-  return picture;
-}
-
 static void
 mapped (GtkWidget *w)
 {
@@ -217,7 +185,6 @@ static const struct {
   { "Gears",      create_gears          },
   { "Switch",     create_switch         },
   { "Menubutton", create_menu_button    },
-  { "Shader",     create_cogs           },
 };
 
 static int selected_widget_type = -1;

demos/gtk-demo/fishbowl.ui

@@ -13,13 +13,13 @@
             </style>
             <child>
               <object class="GtkButton">
-                <property name="icon-name">go-previous-symbolic</property>
+                <property name="icon-name">pan-start-symbolic</property>
                 <signal name="clicked" handler="fishbowl_prev_button_clicked_cb" object="bowl" swapped="no"/>
               </object>
             </child>
             <child>
               <object class="GtkButton">
-                <property name="icon-name">go-next-symbolic</property>
+                <property name="icon-name">pan-end-symbolic</property>
                 <signal name="clicked" handler="fishbowl_next_button_clicked_cb" object="bowl" swapped="no"/>
               </object>
             </child>
@@ -33,9 +33,6 @@
                 <lookup name="framerate">bowl</lookup>
               </closure>
             </binding>
-            <attributes>
-              <attribute name="font-features" value="tnum=1"/>
-            </attributes>
           </object>
         </child>
         <child type="end">

demos/gtk-demo/fixed.c

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

demos/gtk-demo/font-features.ui

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
+  <requires lib="gtk+" version="3.12"/>
   <object class="GtkWindow" id="window">
     <property name="default-width">600</property>
     <property name="default-height">500</property>
@@ -10,8 +11,12 @@
           <object class="GtkButton" id="reset">
             <property name="receives-default">1</property>
             <property name="tooltip-text">Reset</property>
-            <property name="icon-name">view-refresh-symbolic</property>
             <signal name="clicked" handler="font_features_reset_features" swapped="no"/>
+            <child>
+              <object class="GtkImage">
+                <property name="icon-name">view-refresh-symbolic</property>
+              </object>
+            </child>
           </object>
         </child>
       </object>

demos/gtk-demo/font_features.c

@@ -1068,6 +1068,7 @@ update_font_variations (void)
   unsigned int length;
   int i;
 
+  child = gtk_widget_get_first_child (variations_grid);
   while ((child = gtk_widget_get_first_child (variations_grid)))
     gtk_grid_remove (GTK_GRID (variations_grid), child);
 
@@ -1136,7 +1137,7 @@ done:
   g_free (design_coords);
 }
 
-G_MODULE_EXPORT void
+void
 font_features_font_changed (void)
 {
   update_script_combo ();
@@ -1144,14 +1145,14 @@ font_features_font_changed (void)
   update_font_variations ();
 }
 
-G_MODULE_EXPORT void
+void
 font_features_script_changed (void)
 {
   update_features ();
   update_display ();
 }
 
-G_MODULE_EXPORT void
+void
 font_features_reset_features (void)
 {
   GList *l;
@@ -1197,7 +1198,7 @@ switch_to_label (void)
   update_display ();
 }
 
-G_MODULE_EXPORT void
+void
 font_features_toggle_edit (void)
 {
   if (strcmp (gtk_stack_get_visible_child_name (GTK_STACK (stack)), "label") == 0)
@@ -1206,7 +1207,7 @@ font_features_toggle_edit (void)
     switch_to_label ();
 }
 
-G_MODULE_EXPORT void
+void
 font_features_stop_edit (void)
 {
   g_signal_emit_by_name (edit_toggle, "clicked");

demos/gtk-demo/fontify.c

@@ -24,29 +24,15 @@ insert_tags_for_attributes (GtkTextBuffer     *buffer,
                             GtkTextIter       *end)
 {
   GtkTextTagTable *table;
-  GSList *attrs, *l;
+  PangoAttribute *attr;
   GtkTextTag *tag;
   char name[256];
-  float fg_alpha, bg_alpha;
 
   table = gtk_text_buffer_get_tag_table (buffer);
 
-#define LANGUAGE_ATTR(attr_name) \
-    { \
-      const char *language = pango_language_to_string (((PangoAttrLanguage*)attr)->value); \
-      g_snprintf (name, 256, "language=%s", language); \
-      tag = gtk_text_tag_table_lookup (table, name); \
-      if (!tag) \
-        { \
-          tag = gtk_text_tag_new (name); \
-          g_object_set (tag, #attr_name, language, NULL); \
-          gtk_text_tag_table_add (table, tag); \
-          g_object_unref (tag); \
-        } \
-      gtk_text_buffer_apply_tag (buffer, tag, start, end); \
-    }
-
-#define STRING_ATTR(attr_name) \
+#define STRING_ATTR(pango_attr_name, attr_name) \
+  attr = pango_attr_iterator_get (iter, pango_attr_name); \
+  if (attr) \
     { \
       const char *string = ((PangoAttrString*)attr)->value; \
       g_snprintf (name, 256, #attr_name "=%s", string); \
@@ -61,7 +47,9 @@ insert_tags_for_attributes (GtkTextBuffer     *buffer,
       gtk_text_buffer_apply_tag (buffer, tag, start, end); \
     }
 
-#define INT_ATTR(attr_name) \
+#define INT_ATTR(pango_attr_name, attr_name) \
+  attr = pango_attr_iterator_get (iter, pango_attr_name); \
+  if (attr) \
     { \
       int value = ((PangoAttrInt*)attr)->value; \
       g_snprintf (name, 256, #attr_name "=%d", value); \
@@ -76,24 +64,9 @@ insert_tags_for_attributes (GtkTextBuffer     *buffer,
       gtk_text_buffer_apply_tag (buffer, tag, start, end); \
     }
 
-#define FONT_ATTR(attr_name) \
-    { \
-      PangoFontDescription *desc = ((PangoAttrFontDesc*)attr)->desc; \
-      char *str = pango_font_description_to_string (desc); \
-      g_snprintf (name, 256, "font-desc=%s", str); \
-      g_free (str); \
-      tag = gtk_text_tag_table_lookup (table, name); \
-      if (!tag) \
-        { \
-          tag = gtk_text_tag_new (name); \
-          g_object_set (tag, #attr_name, desc, NULL); \
-          gtk_text_tag_table_add (table, tag); \
-          g_object_unref (tag); \
-        } \
-      gtk_text_buffer_apply_tag (buffer, tag, start, end); \
-    }
-
-#define FLOAT_ATTR(attr_name) \
+#define FLOAT_ATTR(pango_attr_name, attr_name) \
+  attr = pango_attr_iterator_get (iter, pango_attr_name); \
+  if (attr) \
     { \
       float value = ((PangoAttrFloat*)attr)->value; \
       g_snprintf (name, 256, #attr_name "=%g", value); \
@@ -108,7 +81,9 @@ insert_tags_for_attributes (GtkTextBuffer     *buffer,
       gtk_text_buffer_apply_tag (buffer, tag, start, end); \
     }
 
-#define RGBA_ATTR(attr_name, alpha_value) \
+#define RGBA_ATTR(pango_attr_name, attr_name) \
+  attr = pango_attr_iterator_get (iter, pango_attr_name); \
+  if (attr) \
     { \
       PangoColor *color; \
       GdkRGBA rgba; \
@@ -116,7 +91,7 @@ insert_tags_for_attributes (GtkTextBuffer     *buffer,
       rgba.red = color->red / 65535.; \
       rgba.green = color->green / 65535.; \
       rgba.blue = color->blue / 65535.; \
-      rgba.alpha = alpha_value; \
+      rgba.alpha = 1.; \
       char *str = gdk_rgba_to_string (&rgba); \
       g_snprintf (name, 256, #attr_name "=%s", str); \
       g_free (str); \
@@ -131,193 +106,63 @@ insert_tags_for_attributes (GtkTextBuffer     *buffer,
       gtk_text_buffer_apply_tag (buffer, tag, start, end); \
     }
 
-#define VOID_ATTR(attr_name) \
-    { \
-      tag = gtk_text_tag_table_lookup (table, #attr_name); \
-      if (!tag) \
-        { \
-          tag = gtk_text_tag_new (#attr_name); \
-          g_object_set (tag, #attr_name, TRUE, NULL); \
-          gtk_text_tag_table_add (table, tag); \
-          g_object_unref (tag); \
-        } \
-      gtk_text_buffer_apply_tag (buffer, tag, start, end); \
-    }
-
-  fg_alpha = bg_alpha = 1.;
-
-  attrs = pango_attr_iterator_get_attrs (iter);
-  for (l = attrs; l; l = l->next)
+  attr = pango_attr_iterator_get (iter, PANGO_ATTR_LANGUAGE);
+  if (attr)
     {
-      PangoAttribute *attr = l->data;
-
-      switch ((int)attr->klass->type)
+      const char *language = pango_language_to_string (((PangoAttrLanguage*)attr)->value);
+      g_snprintf (name, 256, "language=%s", language);
+      tag = gtk_text_tag_table_lookup (table, name);
+      if (!tag)
         {
-        case PANGO_ATTR_FOREGROUND_ALPHA:
-          fg_alpha = ((PangoAttrInt*)attr)->value / 65535.;
-          break;
-
-        case PANGO_ATTR_BACKGROUND_ALPHA:
-          bg_alpha = ((PangoAttrInt*)attr)->value / 65535.;
-          break;
-
-        default:
-          break;
+          tag = gtk_text_tag_new (name);
+          g_object_set (tag, "language", language, NULL);
+          gtk_text_tag_table_add (table, tag);
+          g_object_unref (tag);
         }
+      gtk_text_buffer_apply_tag (buffer, tag, start, end);
     }
 
-  for (l = attrs; l; l = l->next)
+  STRING_ATTR (PANGO_ATTR_FAMILY, family)
+  INT_ATTR    (PANGO_ATTR_STYLE, style)
+  INT_ATTR    (PANGO_ATTR_WEIGHT, weight)
+  INT_ATTR    (PANGO_ATTR_VARIANT, variant)
+  INT_ATTR    (PANGO_ATTR_STRETCH, stretch)
+  INT_ATTR    (PANGO_ATTR_SIZE, size)
+
+  attr = pango_attr_iterator_get (iter, PANGO_ATTR_FONT_DESC);
+  if (attr)
     {
-      PangoAttribute *attr = l->data;
-
-      switch (attr->klass->type)
+      PangoFontDescription *desc = ((PangoAttrFontDesc*)attr)->desc;
+      char *str = pango_font_description_to_string (desc);
+      g_snprintf (name, 256, "font-desc=%s", str);
+      g_free (str);
+      tag = gtk_text_tag_table_lookup (table, name);
+      if (!tag)
         {
-        case PANGO_ATTR_LANGUAGE:
-          LANGUAGE_ATTR (language);
-          break;
-
-        case PANGO_ATTR_FAMILY:
-          STRING_ATTR (family);
-          break;
-
-        case PANGO_ATTR_STYLE:
-          INT_ATTR (style);
-          break;
-
-        case PANGO_ATTR_WEIGHT:
-          INT_ATTR (weight);
-          break;
-
-        case PANGO_ATTR_VARIANT:
-          INT_ATTR (variant);
-          break;
-
-        case PANGO_ATTR_STRETCH:
-          INT_ATTR (stretch);
-          break;
-
-        case PANGO_ATTR_SIZE:
-          INT_ATTR (size);
-          break;
-
-        case PANGO_ATTR_FONT_DESC:
-          FONT_ATTR (font-desc);
-          break;
-
-        case PANGO_ATTR_FOREGROUND:
-          RGBA_ATTR (foreground_rgba, fg_alpha);
-          break;
-
-        case PANGO_ATTR_BACKGROUND:
-          RGBA_ATTR (background_rgba, bg_alpha);
-          break;
-
-        case PANGO_ATTR_UNDERLINE:
-          INT_ATTR (underline);
-          break;
-
-        case PANGO_ATTR_UNDERLINE_COLOR:
-          RGBA_ATTR (underline_rgba, fg_alpha);
-          break;
-
-        case PANGO_ATTR_OVERLINE:
-          INT_ATTR (overline);
-          break;
-
-        case PANGO_ATTR_OVERLINE_COLOR:
-          RGBA_ATTR (overline_rgba, fg_alpha);
-          break;
-
-        case PANGO_ATTR_STRIKETHROUGH:
-          INT_ATTR (strikethrough);
-          break;
-
-        case PANGO_ATTR_STRIKETHROUGH_COLOR:
-          RGBA_ATTR (strikethrough_rgba, fg_alpha);
-          break;
-
-        case PANGO_ATTR_RISE:
-          INT_ATTR (rise);
-          break;
-
-        case PANGO_ATTR_SCALE:
-          FLOAT_ATTR (scale);
-          break;
-
-        case PANGO_ATTR_FALLBACK:
-          INT_ATTR (fallback);
-          break;
-
-        case PANGO_ATTR_LETTER_SPACING:
-          INT_ATTR (letter_spacing);
-          break;
-
-        case PANGO_ATTR_FONT_FEATURES:
-          STRING_ATTR (font_features);
-          break;
-
-        case PANGO_ATTR_ALLOW_BREAKS:
-          INT_ATTR (allow_breaks);
-          break;
-
-        case PANGO_ATTR_SHOW:
-          INT_ATTR (show_spaces);
-          break;
-
-        case PANGO_ATTR_INSERT_HYPHENS:
-          INT_ATTR (insert_hyphens);
-          break;
-
-        case PANGO_ATTR_LINE_HEIGHT:
-          FLOAT_ATTR (line_height);
-          break;
-
-        case PANGO_ATTR_ABSOLUTE_LINE_HEIGHT:
-          break;
-
-        case PANGO_ATTR_WORD:
-          VOID_ATTR (word);
-          break;
-
-        case PANGO_ATTR_SENTENCE:
-          VOID_ATTR (sentence);
-          break;
-
-        case PANGO_ATTR_BASELINE_SHIFT:
-          INT_ATTR (baseline_shift);
-          break;
-
-        case PANGO_ATTR_FONT_SCALE:
-          INT_ATTR (font_scale);
-          break;
-
-        case PANGO_ATTR_SHAPE:
-        case PANGO_ATTR_ABSOLUTE_SIZE:
-        case PANGO_ATTR_GRAVITY:
-        case PANGO_ATTR_GRAVITY_HINT:
-        case PANGO_ATTR_FOREGROUND_ALPHA:
-        case PANGO_ATTR_BACKGROUND_ALPHA:
-          break;
-
-        case PANGO_ATTR_TEXT_TRANSFORM:
-          INT_ATTR (text_transform);
-          break;
-
-        case PANGO_ATTR_INVALID:
-        default:
-          g_assert_not_reached ();
-          break;
+          tag = gtk_text_tag_new (name);
+          g_object_set (tag, "font-desc", desc, NULL);
+          gtk_text_tag_table_add (table, tag);
+          g_object_unref (tag);
         }
+      gtk_text_buffer_apply_tag (buffer, tag, start, end);
     }
 
-  g_slist_free_full (attrs, (GDestroyNotify)pango_attribute_destroy);
-
-#undef LANGUAGE_ATTR
-#undef STRING_ATTR
-#undef INT_ATTR
-#undef FONT_ATTR
-#undef FLOAT_ATTR
-#undef RGBA_ATTR
+  RGBA_ATTR   (PANGO_ATTR_FOREGROUND, foreground_rgba)
+  RGBA_ATTR   (PANGO_ATTR_BACKGROUND, background_rgba)
+  INT_ATTR    (PANGO_ATTR_UNDERLINE, underline)
+  RGBA_ATTR   (PANGO_ATTR_UNDERLINE_COLOR, underline_rgba)
+  INT_ATTR    (PANGO_ATTR_OVERLINE, overline)
+  RGBA_ATTR   (PANGO_ATTR_OVERLINE_COLOR, overline_rgba)
+  INT_ATTR    (PANGO_ATTR_STRIKETHROUGH, strikethrough)
+  RGBA_ATTR   (PANGO_ATTR_STRIKETHROUGH_COLOR, strikethrough_rgba)
+  INT_ATTR    (PANGO_ATTR_RISE, rise)
+  FLOAT_ATTR  (PANGO_ATTR_SCALE, scale)
+  INT_ATTR    (PANGO_ATTR_FALLBACK, fallback)
+  INT_ATTR    (PANGO_ATTR_LETTER_SPACING, letter_spacing)
+  STRING_ATTR (PANGO_ATTR_FONT_FEATURES, font_features)
+  INT_ATTR    (PANGO_ATTR_ALLOW_BREAKS, allow_breaks)
+  INT_ATTR    (PANGO_ATTR_SHOW, show_spaces)
+  INT_ATTR    (PANGO_ATTR_INSERT_HYPHENS, insert_hyphens)
 }
 
 typedef struct
@@ -541,7 +386,7 @@ fontify (const char    *format,
   char *theme;
   gboolean prefer_dark;
   const char *style_arg;
-  char *text;
+  const char *text;
   GtkTextIter start, end;
   GBytes *bytes;
   GError *error = NULL;
@@ -593,7 +438,7 @@ fontify (const char    *format,
 
   gtk_text_buffer_get_bounds (source_buffer, &start, &end);
   text = gtk_text_buffer_get_text (source_buffer, &start, &end, TRUE);
-  bytes = g_bytes_new_take (text, strlen (text));
+  bytes = g_bytes_new_static (text, strlen (text));
 
 #ifdef HAVE_GIO_UNIX
   /* Work around https://gitlab.gnome.org/GNOME/glib/-/issues/2182 */
@@ -610,5 +455,4 @@ fontify (const char    *format,
                                   NULL,
                                   fontify_finish,
                                   g_object_ref (source_buffer));
-  g_bytes_unref (bytes);
 }

demos/gtk-demo/fontrendering.c

@@ -1,11 +1,6 @@
-/* Pango/Font Rendering
+/* Pango/Font rendering
  *
- * Demonstrates various aspects of font rendering,
- * such as hinting, antialiasing and grid alignment.
- *
- * The demo lets you explore font rendering options
- * interactively to get a feeling for they affect the
- * shape and positioning of the glyphs.
+ * Demonstrates various aspects of font rendering.
  */
 
 #include <gtk/gtk.h>
@@ -15,21 +10,16 @@ static GtkWidget *font_button = NULL;
 static GtkWidget *entry = NULL;
 static GtkWidget *image = NULL;
 static GtkWidget *hinting = NULL;
-static GtkWidget *anti_alias = NULL;
 static GtkWidget *hint_metrics = NULL;
 static GtkWidget *up_button = NULL;
 static GtkWidget *down_button = NULL;
 static GtkWidget *text_radio = NULL;
 static GtkWidget *show_grid = NULL;
 static GtkWidget *show_extents = NULL;
-static GtkWidget *show_pixels = NULL;
-static GtkWidget *show_outlines = NULL;
 
 static PangoContext *context;
 
-static int scale = 7;
-static double pixel_alpha = 1.0;
-static double outline_alpha = 0.0;
+static int scale = 9;
 
 static void
 update_image (void)
@@ -37,7 +27,7 @@ update_image (void)
   const char *text;
   PangoFontDescription *desc;
   PangoLayout *layout;
-  PangoRectangle ink, logical;
+  PangoRectangle ink, pink, logical;
   int baseline;
   cairo_surface_t *surface;
   cairo_t *cr;
@@ -47,8 +37,6 @@ update_image (void)
   cairo_font_options_t *fopt;
   cairo_hint_style_t hintstyle;
   cairo_hint_metrics_t hintmetrics;
-  cairo_antialias_t antialias;
-  cairo_path_t *path;
 
   if (!context)
     context = gtk_widget_create_pango_context (image);
@@ -77,13 +65,6 @@ update_image (void)
     hintmetrics = CAIRO_HINT_METRICS_OFF;
   cairo_font_options_set_hint_metrics (fopt, hintmetrics);
 
-  if (gtk_check_button_get_active (GTK_CHECK_BUTTON (anti_alias)))
-    antialias = CAIRO_ANTIALIAS_GRAY;
-  else
-    antialias = CAIRO_ANTIALIAS_NONE;
-  cairo_font_options_set_antialias (fopt, antialias);
-
-  pango_context_set_round_glyph_positions (context, hintmetrics == CAIRO_HINT_METRICS_ON);
   pango_cairo_context_set_font_options (context, fopt);
   cairo_font_options_destroy (fopt);
   pango_context_changed (context);
@@ -94,6 +75,7 @@ update_image (void)
       pango_layout_set_font_description (layout, desc);
       pango_layout_set_text (layout, text, -1);
       pango_layout_get_extents (layout, &ink, &logical);
+      pink = ink;
       baseline = pango_layout_get_baseline (layout);
 
       pango_extents_to_pixels (&ink, NULL);
@@ -103,14 +85,10 @@ update_image (void)
       cairo_set_source_rgb (cr, 1, 1, 1);
       cairo_paint (cr);
 
-      cairo_set_source_rgba (cr, 0, 0, 0, pixel_alpha);
-
+      cairo_set_source_rgb (cr, 0, 0, 0);
       cairo_move_to (cr, 10, 10);
       pango_cairo_show_layout (cr, layout);
 
-      pango_cairo_layout_path (cr, layout);
-      path = cairo_copy_path (cr);
-
       cairo_destroy (cr);
       g_object_unref (layout);
 
@@ -149,7 +127,7 @@ update_image (void)
 
       if (gtk_check_button_get_active (GTK_CHECK_BUTTON (show_extents)))
         {
-          cairo_set_source_rgb (cr, 0, 0, 1);
+          cairo_set_source_rgba (cr, 0, 0, 1, 1);
 
           cairo_rectangle (cr,
                            scale * (10 + pango_units_to_double (logical.x)) - 0.5,
@@ -162,45 +140,17 @@ update_image (void)
           cairo_line_to (cr, scale * (10 + pango_units_to_double (logical.x + logical.width)) + 1,
                              scale * (10 + pango_units_to_double (baseline)) - 0.5);
           cairo_stroke (cr);
-          cairo_set_source_rgb (cr, 1, 0, 0);
+          cairo_set_source_rgba (cr, 1, 0, 0, 1);
           cairo_rectangle (cr,
-                           scale * (10 + ink.x) - 0.5,
-                           scale * (10 + ink.y) - 0.5,
-                           scale * ink.width + 1,
-                           scale * ink.height + 1);
+                           scale * (10 + pango_units_to_double (pink.x)) + 0.5,
+                           scale * (10 + pango_units_to_double (pink.y)) + 0.5,
+                           scale * pango_units_to_double (pink.width) - 1,
+                           scale * pango_units_to_double (pink.height) - 1);
           cairo_stroke (cr);
         }
 
-      for (int i = 0; i < path->num_data; i += path->data[i].header.length)
-        {
-          cairo_path_data_t *data = &path->data[i];
-          switch (data->header.type)
-            {
-            case CAIRO_PATH_CURVE_TO:
-              data[3].point.x *= scale; data[3].point.y *= scale;
-              data[2].point.x *= scale; data[2].point.y *= scale;
-              data[1].point.x *= scale; data[1].point.y *= scale;
-              break;
-            case CAIRO_PATH_LINE_TO:
-            case CAIRO_PATH_MOVE_TO:
-              data[1].point.x *= scale; data[1].point.y *= scale;
-              break;
-            case CAIRO_PATH_CLOSE_PATH:
-              break;
-            default:
-              g_assert_not_reached ();
-            }
-        }
-
-      cairo_set_source_rgba (cr, 0, 0, 0, outline_alpha);
-      cairo_move_to (cr, scale * 20 - 0.5, scale * 20 - 0.5);
-      cairo_append_path (cr, path);
-      cairo_stroke (cr);
-
       cairo_surface_destroy (surface);
       cairo_destroy (cr);
-
-      cairo_path_destroy (path);
     }
   else
     {
@@ -208,26 +158,10 @@ update_image (void)
       PangoLayoutRun *run;
       PangoGlyphInfo *g;
       int i, j;
-      GString *str;
-      gunichar ch;
-
-      if (*text == '\0')
-        text = " ";
-
-      ch = g_utf8_get_char (text);
-
-      str = g_string_new ("");
-
-      for (i = 0; i < 4; i++)
-        {
-          g_string_append_unichar (str, ch);
-          g_string_append_unichar (str, 0x200c);
-        }
 
       layout = pango_layout_new (context);
       pango_layout_set_font_description (layout, desc);
-      pango_layout_set_text (layout, str->str, -1);
-      g_string_free (str, TRUE);
+      pango_layout_set_text (layout, "aaaa", -1);
       pango_layout_get_extents (layout, &ink, &logical);
       pango_extents_to_pixels (&logical, NULL);
 
@@ -242,7 +176,7 @@ update_image (void)
       cairo_set_source_rgb (cr, 0, 0, 0);
       for (i = 0; i < 4; i++)
         {
-          g = &(run->glyphs->glyphs[2*i]);
+          g = &(run->glyphs->glyphs[i]);
           g->geometry.width = PANGO_UNITS_ROUND (g->geometry.width * 3 / 2);
         }
 
@@ -250,7 +184,7 @@ update_image (void)
         {
           for (i = 0; i < 4; i++)
             {
-              g = &(run->glyphs->glyphs[2*i]);
+              g = &(run->glyphs->glyphs[i]);
               g->geometry.x_offset = i * (PANGO_SCALE / 4);
               g->geometry.y_offset = j * (PANGO_SCALE / 4);
             }
@@ -269,6 +203,7 @@ update_image (void)
       cairo_surface_destroy (surface);
     }
 
+
   gtk_picture_set_pixbuf (GTK_PICTURE (image), pixbuf2);
 
   g_object_unref (pixbuf2);
@@ -276,78 +211,6 @@ update_image (void)
   pango_font_description_free (desc);
 }
 
-static gboolean fading = FALSE;
-static double start_pixel_alpha;
-static double end_pixel_alpha;
-static double start_outline_alpha;
-static double end_outline_alpha;
-static gint64 start_time;
-static gint64 end_time;
-
-static double
-ease_out_cubic (double t)
-{
-  double p = t - 1;
-  return p * p * p + 1;
-}
-
-static gboolean
-change_alpha (GtkWidget     *widget,
-              GdkFrameClock *clock,
-              gpointer       user_data)
-{
-  gint64 now = g_get_monotonic_time ();
-  double t;
-
-  t = ease_out_cubic ((now - start_time) / (double) (end_time - start_time));
-
-  pixel_alpha = start_pixel_alpha + (end_pixel_alpha - start_pixel_alpha) * t;
-  outline_alpha = start_outline_alpha + (end_outline_alpha - start_outline_alpha) * t;
-
-  update_image ();
-
-  if (now >= end_time)
-    {
-      fading = FALSE;
-      return G_SOURCE_REMOVE;
-    }
-
-  return G_SOURCE_CONTINUE;
-}
-
-static void
-start_alpha_fade (void)
-{
-  gboolean pixels;
-  gboolean outlines;
-
-  if (fading)
-    return;
-
-  pixels = gtk_check_button_get_active (GTK_CHECK_BUTTON (show_pixels));
-  outlines = gtk_check_button_get_active (GTK_CHECK_BUTTON (show_outlines));
-
-  start_pixel_alpha = pixel_alpha;
-  if (pixels && outlines)
-    end_pixel_alpha = 0.5;
-  else if (pixels)
-    end_pixel_alpha = 1;
-  else
-    end_pixel_alpha = 0;
-
-  start_outline_alpha = outline_alpha;
-  if (outlines)
-    end_outline_alpha = 1.0;
-  else
-    end_outline_alpha = 0.0;
-
-  start_time = g_get_monotonic_time ();
-  end_time = start_time + G_TIME_SPAN_SECOND / 2;
-
-  fading = TRUE;
-  gtk_widget_add_tick_callback (window, change_alpha, NULL, NULL);
-}
-
 static void
 update_buttons (void)
 {
@@ -355,26 +218,20 @@ update_buttons (void)
   gtk_widget_set_sensitive (down_button, scale > 1);
 }
 
-static gboolean
-scale_up (GtkWidget *widget,
-          GVariant  *args,
-          gpointer   user_data)
+static void
+scale_up (void)
 {
   scale += 1;
   update_buttons ();
   update_image ();
-  return TRUE;
 }
 
-static gboolean
-scale_down (GtkWidget *widget,
-            GVariant  *args,
-            gpointer   user_data)
+static void
+scale_down (void)
 {
   scale -= 1;
   update_buttons ();
   update_image ();
-  return TRUE;
 }
 
 GtkWidget *
@@ -395,26 +252,20 @@ do_fontrendering (GtkWidget *do_widget)
       entry = GTK_WIDGET (gtk_builder_get_object (builder, "entry"));
       image = GTK_WIDGET (gtk_builder_get_object (builder, "image"));
       hinting = GTK_WIDGET (gtk_builder_get_object (builder, "hinting"));
-      anti_alias = GTK_WIDGET (gtk_builder_get_object (builder, "antialias"));
       hint_metrics = GTK_WIDGET (gtk_builder_get_object (builder, "hint_metrics"));
       text_radio = GTK_WIDGET (gtk_builder_get_object (builder, "text_radio"));
       show_grid = GTK_WIDGET (gtk_builder_get_object (builder, "show_grid"));
       show_extents = GTK_WIDGET (gtk_builder_get_object (builder, "show_extents"));
-      show_pixels = GTK_WIDGET (gtk_builder_get_object (builder, "show_pixels"));
-      show_outlines = GTK_WIDGET (gtk_builder_get_object (builder, "show_outlines"));
 
       g_signal_connect (up_button, "clicked", G_CALLBACK (scale_up), NULL);
       g_signal_connect (down_button, "clicked", G_CALLBACK (scale_down), NULL);
       g_signal_connect (entry, "notify::text", G_CALLBACK (update_image), NULL);
       g_signal_connect (font_button, "notify::font-desc", G_CALLBACK (update_image), NULL);
       g_signal_connect (hinting, "notify::active", G_CALLBACK (update_image), NULL);
-      g_signal_connect (anti_alias, "notify::active", G_CALLBACK (update_image), NULL);
       g_signal_connect (hint_metrics, "notify::active", G_CALLBACK (update_image), NULL);
       g_signal_connect (text_radio, "notify::active", G_CALLBACK (update_image), NULL);
       g_signal_connect (show_grid, "notify::active", G_CALLBACK (update_image), NULL);
       g_signal_connect (show_extents, "notify::active", G_CALLBACK (update_image), NULL);
-      g_signal_connect (show_pixels, "notify::active", G_CALLBACK (start_alpha_fade), NULL);
-      g_signal_connect (show_outlines, "notify::active", G_CALLBACK (start_alpha_fade), NULL);
 
       update_image ();
 

demos/gtk-demo/fontrendering.ui

@@ -1,8 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <interface>
+  <object class="GtkAdjustment" id="scale_adj">
+    <property name="upper">24</property>
+    <property name="step-increment">1</property>
+    <property name="page-increment">4</property>
+  </object>
   <object class="GtkWindow" id="window">
-    <property name="default-width">1024</property>
-    <property name="default-height">768</property>
+    <property name="default-width">1080</property>
+    <property name="default-height">430</property>
     <child type="titlebar">
       <object class="GtkHeaderBar">
         <child type="title">
@@ -82,119 +87,69 @@
               </object>
             </child>
             <child>
-              <object class="GtkCheckButton" id="show_pixels">
-                <property name="label">Show _Pixels</property>
-                <property name="use-underline">1</property>
-                <property name="active">1</property>
+              <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>
-                  <property name="row">0</property>
                 </layout>
               </object>
             </child>
             <child>
-              <object class="GtkCheckButton" id="show_outlines">
-                <property name="label">Show _Outline</property>
-                <property name="use-underline">1</property>
-                <layout>
-                  <property name="column">3</property>
-                  <property name="row">1</property>
-                </layout>
-              </object>
-            </child>
-            <child>
-              <object class="GtkBox">
-                <property name="spacing">6</property>
-                <child>
-                  <object class="GtkLabel">
-                    <property name="label">_Hinting</property>
-                    <property name="use-underline">1</property>
-                    <property name="mnemonic-widget">hinting</property>
-                    <style>
-                      <class name="dim-label"/>
-                    </style>
-                  </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>
-                  </object>
-                </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>
-                  <property name="column-span">2</property>
-                </layout>
-              </object>
-            </child>
-            <child>
-              <object class="GtkCheckButton" id="antialias">
-                <property name="label">_Antialias</property>
-                <property name="use-underline">1</property>
-                <property name="active">1</property>
-                <layout>
-                  <property name="column">4</property>
-                  <property name="row">1</property>
                 </layout>
               </object>
             </child>
             <child>
               <object class="GtkCheckButton" id="hint_metrics">
-                <property name="label">Hint _Metrics</property>
-                <property name="use-underline">1</property>
+                <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="GtkCheckButton" id="show_extents">
-                <property name="label">Show _Extents</property>
-                <property name="use-underline">1</property>
-                <layout>
-                  <property name="column">6</property>
-                  <property name="row">0</property>
-                </layout>
-              </object>
-            </child>
-            <child>
-              <object class="GtkCheckButton" id="show_grid">
-                <property name="label">Show _Grid</property>
-                <property name="use-underline">1</property>
-                <layout>
-                  <property name="column">6</property>
-                  <property name="row">1</property>
-                </layout>
-              </object>
-            </child>
             <child>
               <object class="GtkButton" id="up_button">
                 <property name="icon-name">list-add-symbolic</property>
-                <property name="halign">center</property>
-                <property name="valign">center</property>
                 <style>
                   <class name="circular"/>
                 </style>
-                <child>
-                  <object class="GtkShortcutController">
-                    <property name="scope">managed</property>
-                    <child>
-                      <object class="GtkShortcut">
-                        <property name="trigger">&lt;Control&gt;plus</property>
-                        <property name="action">activate</property>
-                      </object>
-                    </child>
-                  </object>
-                </child>
                 <layout>
-                  <property name="column">7</property>
+                  <property name="column">6</property>
                   <property name="row">0</property>
                 </layout>
               </object>
@@ -202,24 +157,11 @@
             <child>
               <object class="GtkButton" id="down_button">
                 <property name="icon-name">list-remove-symbolic</property>
-                <property name="halign">center</property>
-                <property name="valign">center</property>
                 <style>
                   <class name="circular"/>
                 </style>
-                <child>
-                  <object class="GtkShortcutController">
-                    <property name="scope">managed</property>
-                    <child>
-                      <object class="GtkShortcut">
-                        <property name="trigger">&lt;Control&gt;minus</property>
-                        <property name="action">activate</property>
-                      </object>
-                    </child>
-                  </object>
-                </child>
                 <layout>
-                  <property name="column">7</property>
+                  <property name="column">6</property>
                   <property name="row">1</property>
                 </layout>
               </object>
@@ -228,7 +170,7 @@
               <object class="GtkLabel">
                 <property name="hexpand">1</property>
                 <layout>
-                  <property name="column">8</property>
+                  <property name="column">7</property>
                 </layout>
               </object>
             </child>

demos/gtk-demo/frames.c

@@ -1,165 +0,0 @@
-/* Benchmark/Frames
- *
- * This demo is intentionally as simple as possible, to see what
- * framerate the windowing system can deliver on its own.
- *
- * It does nothing but change the drawn color, for every frame.
- */
-
-#include <gtk/gtk.h>
-
-typedef struct
-{
-  GtkWidget parent_instance;
-
-  GdkRGBA color1;
-  GdkRGBA color2;
-  guint64 time2;
-  float t;
-
-  guint tick_cb;
-} ColorWidget;
-
-typedef struct
-{
-  GtkWidgetClass parent_class;
-} ColorWidgetClass;
-
-G_DEFINE_TYPE (ColorWidget, color_widget, GTK_TYPE_WIDGET)
-
-#define TIME_SPAN (3.0 * G_TIME_SPAN_SECOND)
-
-static gboolean
-change_color (GtkWidget     *widget,
-              GdkFrameClock *frame_clock,
-              gpointer       data)
-{
-  ColorWidget *color = (ColorWidget *)widget;
-  gint64 time;
-
-  time = gdk_frame_clock_get_frame_time (frame_clock);
-
-  if (time >= color->time2)
-    {
-      color->time2 = time + TIME_SPAN;
-
-      color->color1 = color->color2;
-      color->color2.red = g_random_double_range (0, 1);
-      color->color2.green = g_random_double_range (0, 1);
-      color->color2.blue = g_random_double_range (0, 1);
-      color->color2.alpha = 1;
-    }
-
-  color->t = 1 - (color->time2 - time) / TIME_SPAN;
-
-  gtk_widget_queue_draw (widget);
-
-  return G_SOURCE_CONTINUE;
-}
-
-static void
-color_widget_snapshot (GtkWidget   *widget,
-                       GtkSnapshot *snapshot)
-{
-  ColorWidget *color = (ColorWidget *)widget;
-  float w, h;
-  GdkRGBA c;
-
-  w = gtk_widget_get_width (widget);
-  h = gtk_widget_get_height (widget);
-
-  c.red = (1 - color->t) * color->color1.red + color->t * color->color2.red;
-  c.green = (1 - color->t) * color->color1.green + color->t * color->color2.green;
-  c.blue = (1 - color->t) * color->color1.blue + color->t * color->color2.blue;
-  c.alpha = 1;
-
-  gtk_snapshot_append_color (snapshot, &c, &GRAPHENE_RECT_INIT (0, 0, w, h));
-}
-
-static void
-color_widget_init (ColorWidget *color)
-{
-  gtk_widget_add_tick_callback (GTK_WIDGET (color), change_color, NULL, NULL);
-  gtk_widget_set_hexpand (GTK_WIDGET (color), TRUE);
-  gtk_widget_set_vexpand (GTK_WIDGET (color), TRUE);
-}
-
-static void
-color_widget_class_init (ColorWidgetClass *class)
-{
-  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
-
-  widget_class->snapshot = color_widget_snapshot;
-}
-
-GtkWidget *
-color_widget_new (void)
-{
-  return g_object_new (color_widget_get_type (), NULL);
-}
-
-static gboolean
-update_fps_label (gpointer data)
-{
-  GtkWidget *label = GTK_WIDGET (data);
-  GdkFrameClock *frame_clock;
-
-  frame_clock = gtk_widget_get_frame_clock (label);
-
-  if (frame_clock)
-    {
-      char *fps;
-
-      fps = g_strdup_printf ("%.2f fps", gdk_frame_clock_get_fps (frame_clock));
-      gtk_label_set_label (GTK_LABEL (label), fps);
-      g_free (fps);
-    }
-  else
-    gtk_label_set_label (GTK_LABEL (label), "");
-
-  return G_SOURCE_CONTINUE;
-}
-
-static void
-remove_id (gpointer data)
-{
-  guint id = GPOINTER_TO_UINT (data);
-
-  g_source_remove (id);
-}
-
-GtkWidget *
-do_frames (GtkWidget *do_widget)
-{
-  static GtkWidget *window = NULL;
-
-  if (!window)
-    {
-      GtkBuilder *builder;
-      GtkWidget *box;
-      GtkWidget *label;
-      guint id;
-
-      builder = gtk_builder_new_from_resource ("/frames/frames.ui");
-      window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
-      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
-      gtk_window_set_display (GTK_WINDOW (window),
-                              gtk_widget_get_display (do_widget));
-
-      label = GTK_WIDGET (gtk_builder_get_object (builder, "fps"));
-      box = GTK_WIDGET (gtk_builder_get_object (builder, "box"));
-
-      gtk_box_append (GTK_BOX (box), color_widget_new ());
-
-      id = g_timeout_add (500, update_fps_label, label);
-      g_object_set_data_full (G_OBJECT (label), "tick_cb",
-                              GUINT_TO_POINTER (id), remove_id);
-    }
-
-  if (!gtk_widget_get_visible (window))
-    gtk_widget_show (window);
-  else
-    gtk_window_destroy (GTK_WINDOW (window));
-
-  return window;
-}

demos/gtk-demo/frames.ui

@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<interface>
-  <object class="GtkWindow" id="window">
-    <property name="resizable">1</property>
-    <property name="default-width">600</property>
-    <property name="default-height">400</property>
-    <property name="title">Frames</property>
-    <child type="titlebar">
-      <object class="GtkHeaderBar" id="header">
-        <child type="end">
-          <object class="GtkLabel" id="fps">
-            <attributes>
-              <attribute name="font-features" value="tnum=1"/>
-            </attributes>
-          </object>
-        </child>
-      </object>
-    </child>
-    <child>
-      <object class="GtkBox" id="box">
-      </object>
-    </child>
-  </object>
-</interface>

demos/gtk-demo/geninclude.py

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

demos/gtk-demo/gestures.c

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

demos/gtk-demo/glarea.c

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

demos/gtk-demo/glowingstars.glsl

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

demos/gtk-demo/gltransition.c

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

demos/gtk-demo/gskshaderpaintable.c

@@ -1,334 +0,0 @@
-/*
- * Copyright © 2020 Red Hat, Inc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library. If not, see <http://www.gnu.org/licenses/>.
- *
- * Authors: Matthias Clasen <mclasen@redhat.com>
- */
-
-#include "config.h"
-
-#include <gtk/gtk.h>
-#include "gskshaderpaintable.h"
-
-/**
- * GskShaderPaintable:
- *
- * `GskShaderPaintable` is an implementation of the `GdkPaintable` interface
- * that uses a `GskGLShader` to create pixels.
- *
- * You can set the uniform data that the shader needs for rendering
- * using gsk_shader_paintable_set_args(). This function can
- * be called repeatedly to change the uniform data for the next
- * snapshot.
- *
- * Commonly, time is passed to shaders as a float uniform containing
- * the elapsed time in seconds. The convenience API
- * gsk_shader_paintable_update_time() can be called from a `GtkTickCallback`
- * to update the time based on the frame time of the frame clock.
- */
-
-
-struct _GskShaderPaintable
-{
-  GObject parent_instance;
-
-  GskGLShader *shader;
-  GBytes *args;
-
-  gint64 start_time;
-};
-
-struct _GskShaderPaintableClass
-{
-  GObjectClass parent_class;
-};
-
-enum {
-  PROP_0,
-  PROP_SHADER,
-  PROP_ARGS,
-
-  N_PROPS,
-};
-
-static GParamSpec *properties[N_PROPS] = { NULL, };
-
-static void
-gsk_shader_paintable_paintable_snapshot (GdkPaintable *paintable,
-                                         GdkSnapshot  *snapshot,
-                                         double        width,
-                                         double        height)
-{
-  GskShaderPaintable *self = GSK_SHADER_PAINTABLE (paintable);
-
-  gtk_snapshot_push_gl_shader (snapshot, self->shader, &GRAPHENE_RECT_INIT(0, 0, width, height), g_bytes_ref (self->args));
-  gtk_snapshot_pop (snapshot);
-}
-
-static void
-gsk_shader_paintable_paintable_init (GdkPaintableInterface *iface)
-{
-  iface->snapshot = gsk_shader_paintable_paintable_snapshot;
-}
-
-G_DEFINE_TYPE_EXTENDED (GskShaderPaintable, gsk_shader_paintable, G_TYPE_OBJECT, 0,
-                        G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
-                                               gsk_shader_paintable_paintable_init))
-
-static void
-gsk_shader_paintable_set_property (GObject      *object,
-                                   guint         prop_id,
-                                   const GValue *value,
-                                   GParamSpec   *pspec)
-
-{
-  GskShaderPaintable *self = GSK_SHADER_PAINTABLE (object);
-
-  switch (prop_id)
-    {
-    case PROP_SHADER:
-      gsk_shader_paintable_set_shader (self, g_value_get_object (value));
-      break;
-
-    case PROP_ARGS:
-      gsk_shader_paintable_set_args (self, g_value_get_boxed (value));
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-gsk_shader_paintable_get_property (GObject    *object,
-                                   guint       prop_id,
-                                   GValue     *value,
-                                   GParamSpec *pspec)
-{
-  GskShaderPaintable *self = GSK_SHADER_PAINTABLE (object);
-
-  switch (prop_id)
-    {
-    case PROP_SHADER:
-      g_value_set_object (value, self->shader);
-      break;
-
-    case PROP_ARGS:
-      g_value_set_boxed (value, self->args);
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-gsk_shader_paintable_finalize (GObject *object)
-{
-  GskShaderPaintable *self = GSK_SHADER_PAINTABLE (object);
-
-  g_clear_pointer (&self->args, g_bytes_unref);
-  g_clear_object (&self->shader);
-
-  G_OBJECT_CLASS (gsk_shader_paintable_parent_class)->finalize (object);
-}
-
-static void
-gsk_shader_paintable_class_init (GskShaderPaintableClass *klass)
-{
-  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
-
-  gobject_class->get_property = gsk_shader_paintable_get_property;
-  gobject_class->set_property = gsk_shader_paintable_set_property;
-  gobject_class->finalize = gsk_shader_paintable_finalize;
-
-  properties[PROP_SHADER] =
-    g_param_spec_object ("shader", "Shader", "The shader",
-                         GSK_TYPE_GL_SHADER,
-                         G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
-
-  properties[PROP_ARGS] =
-    g_param_spec_boxed ("args", "Arguments", "The uniform arguments",
-                        G_TYPE_BYTES,
-                        G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
-
-  g_object_class_install_properties (gobject_class, N_PROPS, properties);
-}
-
-static void
-gsk_shader_paintable_init (GskShaderPaintable *self)
-{
-}
-
-/**
- * gsk_shader_paintable_new:
- * @shader: (transfer full) (nullable): the shader to use
- * @data: (transfer full) (nullable): uniform data
- *
- * Creates a paintable that uses the @shader to create
- * pixels. The shader must not require input textures.
- * If @data is %NULL, all uniform values are set to zero.
- *
- * Returns: (transfer full): a new `GskShaderPaintable`
- */
-GdkPaintable *
-gsk_shader_paintable_new (GskGLShader *shader,
-                          GBytes      *data)
-{
-  GdkPaintable *ret;
-
-  g_return_val_if_fail (shader == NULL || GSK_IS_GL_SHADER (shader), NULL);
-
-  if (shader && !data)
-    {
-      int size = gsk_gl_shader_get_args_size (shader);
-      data = g_bytes_new_take (g_new0 (guchar, size), size);
-    }
-
-  ret = g_object_new (GSK_TYPE_SHADER_PAINTABLE,
-                      "shader", shader,
-                      "args", data,
-                      NULL);
-
-  g_clear_object (&shader);
-  g_clear_pointer (&data, g_bytes_unref);
-
-  return ret;
-}
-
-/**
- * gsk_shader_paintable_set_shader:
- * @self: a `GskShaderPaintable`
- * @shader: the `GskGLShader` to use
- *
- * Sets the shader that the paintable will use
- * to create pixels. The shader must not require
- * input textures.
- */
-void
-gsk_shader_paintable_set_shader (GskShaderPaintable *self,
-                                 GskGLShader        *shader)
-{
-  g_return_if_fail (GSK_IS_SHADER_PAINTABLE (self));
-  g_return_if_fail (shader == NULL || GSK_IS_GL_SHADER (shader));
-  g_return_if_fail (shader == NULL || gsk_gl_shader_get_n_textures (shader) == 0);
-
-  if (!g_set_object (&self->shader, shader))
-    return;
-
-  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_SHADER]);
-  gdk_paintable_invalidate_contents (GDK_PAINTABLE (self));
-
-  g_clear_pointer (&self->args, g_bytes_unref);
-}
-
-/**
- * gsk_shader_paintable_get_shader:
- * @self: a `GskShaderPaintable`
- *
- * Returns the shader that the paintable is using.
- *
- * Returns: (transfer none): the `GskGLShader` that is used
- */
-GskGLShader *
-gsk_shader_paintable_get_shader (GskShaderPaintable *self)
-{
-  g_return_val_if_fail (GSK_IS_SHADER_PAINTABLE (self), NULL);
-
-  return self->shader;
-}
-
-/**
- * gsk_shader_paintable_set_args:
- * @self: a `GskShaderPaintable`
- * @data: Data block with uniform data for the shader
- *
- * Sets the uniform data that will be passed to the
- * shader when rendering. The @data will typically
- * be produced by a `GskUniformDataBuilder`.
- *
- * Note that the @data should be considered immutable
- * after it has been passed to this function.
- */
-void
-gsk_shader_paintable_set_args (GskShaderPaintable *self,
-                                       GBytes             *data)
-{
-  g_return_if_fail (GSK_IS_SHADER_PAINTABLE (self));
-  g_return_if_fail (data == NULL || g_bytes_get_size (data) == gsk_gl_shader_get_args_size (self->shader));
-
-  g_clear_pointer (&self->args, g_bytes_unref);
-  if (data)
-    self->args = g_bytes_ref (data);
-
-  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_ARGS]);
-  gdk_paintable_invalidate_contents (GDK_PAINTABLE (self));
-}
-
-/**
- * gsk_shader_paintable_get_args:
- * @self: a `GskShaderPaintable`
- *
- * Returns the uniform data set with
- * gsk_shader_paintable_get_args().
- *
- * Returns: (transfer none): the uniform data
- */
-GBytes *
-gsk_shader_paintable_get_args (GskShaderPaintable *self)
-{
-  g_return_val_if_fail (GSK_IS_SHADER_PAINTABLE (self), NULL);
-
-  return self->args;
-}
-
-/**
- * gsk_shader_paintable_update_time:
- * @self: a `GskShaderPaintable`
- * @time_idx: the index of the uniform for time in seconds as float
- * @frame_time: the current frame time, as returned by `GdkFrameClock`
- *
- * This function is a convenience wrapper for
- * gsk_shader_paintable_set_args() that leaves all
- * uniform values unchanged, except for the uniform with
- * index @time_idx, which will be set to the elapsed time
- * in seconds, since the first call to this function.
- *
- * This function is usually called from a `GtkTickCallback`.
- */
-void
-gsk_shader_paintable_update_time (GskShaderPaintable *self,
-                                  int                 time_idx,
-                                  gint64              frame_time)
-{
-  GskShaderArgsBuilder *builder;
-  GBytes *args;
-  float time;
-
-  if (self->start_time == 0)
-    self->start_time = frame_time;
-
-  time = (frame_time - self->start_time) / (float)G_TIME_SPAN_SECOND;
-
-  builder = gsk_shader_args_builder_new (self->shader, self->args);
-  gsk_shader_args_builder_set_float (builder, time_idx, time);
-  args = gsk_shader_args_builder_free_to_args (builder);
-
-  gsk_shader_paintable_set_args (self, args);
-
-  g_bytes_unref (args);
-}

demos/gtk-demo/gskshaderpaintable.h

@@ -1,53 +0,0 @@
-/*
- * Copyright © 2020 Red Hat, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library. If not, see <http://www.gnu.org/licenses/>.
- *
- * Authors: Matthias Clasen <mclasen@redhat.com>
- */
-
-#ifndef __GSK_SHADER_PAINTABLE_H__
-#define __GSK_SHADER_PAINTABLE_H__
-
-#include <gdk/gdk.h>
-#include <gsk/gsk.h>
-
-G_BEGIN_DECLS
-
-#define GSK_TYPE_SHADER_PAINTABLE (gsk_shader_paintable_get_type ())
-
-GDK_AVAILABLE_IN_ALL
-G_DECLARE_FINAL_TYPE (GskShaderPaintable, gsk_shader_paintable, GSK, SHADER_PAINTABLE, GObject)
-
-GDK_AVAILABLE_IN_ALL
-GdkPaintable *   gsk_shader_paintable_new              (GskGLShader        *shader,
-                                                        GBytes             *data);
-
-GDK_AVAILABLE_IN_ALL
-GskGLShader *    gsk_shader_paintable_get_shader       (GskShaderPaintable *self);
-GDK_AVAILABLE_IN_ALL
-void             gsk_shader_paintable_set_shader       (GskShaderPaintable *self,
-                                                        GskGLShader        *shader);
-GDK_AVAILABLE_IN_ALL
-GBytes *         gsk_shader_paintable_get_args         (GskShaderPaintable *self);
-GDK_AVAILABLE_IN_ALL
-void             gsk_shader_paintable_set_args         (GskShaderPaintable *self,
-                                                        GBytes             *data);
-GDK_AVAILABLE_IN_ALL
-void             gsk_shader_paintable_update_time      (GskShaderPaintable *self,
-                                                        int                 time_idx,
-                                                        gint64              frame_time);
-G_END_DECLS
-
-#endif /* __GSK_SHADER_PAINTABLE_H__ */

demos/gtk-demo/gtkfishbowl.c

@@ -74,9 +74,9 @@ gtk_fishbowl_init (GtkFishbowl *fishbowl)
 /**
  * gtk_fishbowl_new:
  *
- * Creates a new `GtkFishbowl`.
+ * Creates a new #GtkFishbowl.
  *
- * Returns: a new `GtkFishbowl`.
+ * Returns: a new #GtkFishbowl.
  */
 GtkWidget*
 gtk_fishbowl_new (void)
@@ -179,9 +179,6 @@ gtk_fishbowl_add (GtkFishbowl *fishbowl,
   child_info->dy = new_speed ();
 
   gtk_widget_set_parent (widget, GTK_WIDGET (fishbowl));
-  gtk_accessible_update_state (GTK_ACCESSIBLE (widget),
-                               GTK_ACCESSIBLE_STATE_HIDDEN, TRUE,
-                               -1);
 
   g_hash_table_insert (priv->children, widget, child_info);
   priv->count++;
@@ -345,8 +342,6 @@ gtk_fishbowl_class_init (GtkFishbowlClass *klass)
                           G_PARAM_READWRITE);
 
   g_object_class_install_properties (object_class, NUM_PROPERTIES, props);
-
-  gtk_widget_class_set_accessible_role (widget_class, GTK_ACCESSIBLE_ROLE_PRESENTATION);
 }
 
 guint

demos/gtk-demo/gtkgears.c

@@ -764,7 +764,7 @@ gtk_gears_realize (GtkWidget *widget)
   glShaderSource(v, 1, &p, NULL);
   glCompileShader(v);
   glGetShaderInfoLog(v, sizeof msg, NULL, msg);
-  g_debug ("vertex shader info: %s\n", msg);
+  g_print ("vertex shader info: %s\n", msg);
 
   /* Compile the fragment shader */
   if (gdk_gl_context_get_use_es (context))
@@ -775,7 +775,7 @@ gtk_gears_realize (GtkWidget *widget)
   glShaderSource(f, 1, &p, NULL);
   glCompileShader(f);
   glGetShaderInfoLog(f, sizeof msg, NULL, msg);
-  g_debug ("fragment shader info: %s\n", msg);
+  g_print ("fragment shader info: %s\n", msg);
 
   /* Create and link the shader program */
   program = glCreateProgram();
@@ -786,9 +786,7 @@ gtk_gears_realize (GtkWidget *widget)
 
   glLinkProgram(program);
   glGetProgramInfoLog(program, sizeof msg, NULL, msg);
-  g_debug ("program info: %s\n", msg);
-  glDetachShader (program, v);
-  glDetachShader (program, f);
+  g_print ("program info: %s\n", msg);
   glDeleteShader (v);
   glDeleteShader (f);
 

demos/gtk-demo/gtkshaderbin.c

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

demos/gtk-demo/gtkshaderbin.h

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

demos/gtk-demo/gtkshaderstack.c

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

demos/gtk-demo/gtkshaderstack.h

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

demos/gtk-demo/gtkshadertoy.c

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