Add gsk_path_get_previous/next_point

These functions let you iterate over the 'significant'
points of a path.

.gitlab-ci.yml

@@ -30,16 +30,8 @@ variables:
 
 workflow:
   rules:
-    # run merge request pipelines
-    - if: $CI_PIPELINE_SOURCE == "merge_request_event"
-    # do not run branch pipelines if corresponding merge requests exist...
-    # (this avoids duplicate pipelines)
-    - if: $CI_COMMIT_BRANCH && $CI_OPEN_MERGE_REQUESTS
-      when: never
-    # ...but otherwise run branch pipelines
-    - if: $CI_COMMIT_BRANCH
-    # run tag pipelines
     - if: $CI_COMMIT_TAG
+    - if: $CI_COMMIT_BRANCH
 
 default:
   retry:
@@ -205,30 +197,21 @@ msys2-mingw64:
     paths:
       - "${CI_PROJECT_DIR}/_build/gtkdll.tar.gz"
 
-macos-x86_64:
+macos:
+  # Sadly, this fails regularly, and its failure is never enlightening
+  allow_failure: true
   rules:
-    # Do not run in forks as the runner is not available there.
     - if: $CI_PROJECT_NAMESPACE == "GNOME"
   stage: build
   tags:
-    - macosintel
+    - macos
   needs: []
-  variables:
-    MESON_FORCE_BACKTRACKE: 1
-    TMPDIR: /Users/Shared/work/tmp
-    SDKROOT: /opt/sdks/MacOSX10.13.4.sdk
-    CCACHE_DIR: /Users/Shared/work/ccache
-    PIP_CACHE_DIR: /Users/Shared/build/cache
-    PIPENV_CACHE_DIR: $PIP_CACHE_DIR
-    PYTHONPYCACHEPREFIX: $PIP_CACHE_DIR
   before_script:
     - bash .gitlab-ci/show-info-osx.sh
-    - python3 -m venv .venv
-    - ln -s /opt/cmake/CMake.app/Contents/bin/cmake .venv/bin
-    - ln -s /opt/ccache/ccache .venv/bin
-    - source .venv/bin/activate
-    - pip3 install meson==1.2.0
-    - pip3 install ninja==1.11.1
+    - pip3 install --user meson~=1.0
+    - pip3 install --user ninja
+    - export PATH=/Users/gitlabrunner/Library/Python/3.7/bin:$PATH
+    - export MESON_FORCE_BACKTRACE=1
   script:
     - meson setup ${COMMON_MESON_FLAGS}
             -Dx11-backend=false

.gitlab-ci/run-tests.sh

@@ -23,7 +23,6 @@ case "${backend}" in
                 --suite=gtk \
                 --no-suite=failing \
                 --no-suite=flaky \
-                --no-suite=headless \
                 --no-suite=gsk-compare-broadway
 
     # Store the exit code for the CI run, but always
@@ -46,7 +45,6 @@ case "${backend}" in
                 --suite=gtk \
                 --no-suite=failing \
                 --no-suite=flaky \
-                --no-suite=headless \
                 --no-suite=${backend}_failing \
                 --no-suite=gsk-compare-broadway
     exit_code=$?
@@ -69,7 +67,6 @@ case "${backend}" in
                 --suite=gtk \
                 --no-suite=failing \
                 --no-suite=flaky \
-                --no-suite=headless \
                 --no-suite=gsk-compare-opengl
 
     kill ${server}

.gitlab-ci/test-msvc.bat

@@ -6,7 +6,7 @@ call "C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\VC\Auxiliar
 
 :: FIXME: make warnings fatal
 pip3 install --upgrade --user meson~=0.64 || goto :error
-meson setup -Dbackend_max_links=1 -Ddebug=false -Dmedia-gstreamer=disabled _build || goto :error
+meson -Ddebug=false -Dmedia-gstreamer=disabled _build || goto :error
 ninja -C _build || goto :error
 
 goto :EOF

CONTRIBUTING.md

@@ -35,7 +35,8 @@ The issue tracker is meant to be used for actionable issues only.
 
 You should not open a new issue for security related questions.
 
-When in doubt, follow [security](https://security.gnome.org/).
+When in doubt, send an email to the [security](mailto:security@gnome.org)
+mailing list.
 
 ### Bug reports
 
@@ -243,11 +244,13 @@ people committing to GTK to follow a few rules:
    code, you should always ask. If your change is minor and you've been
    working on GTK for a while it probably isn't necessary to ask. But when
    in doubt, ask. Even if your change is correct, somebody may know a
-   better way to do things.
-   The `gtk` [room on matrix](https://matrix.to/#/#gtk:gnome.org) is also a
-   good place to find GTK developers to discuss changes, but if you live
-   outside of the EU/US time zones, the [gtk tag on the GNOME Discourse instance](https://discourse.gnome.org/tag/gtk)
-   is the most certain and preferred method.
+   better way to do things. If you are making changes to GTK, you should
+   be subscribed to the [gtk-devel](https://mail.gnome.org/mailman/listinfo/gtk-devel-list)
+   mailing list; this is a good place to ask about intended changes.
+   The `#gtk` IRC channel on irc.gnome.org is also a good place to find GTK
+   developers to discuss changes, but if you live outside of the EU/US time
+   zones, an email to the gtk-devel mailing list is the most certain and
+   preferred method.
 
 0. Ask _first_.
 

LOG

@@ -0,0 +1,150 @@
+TAP version 13
+# random seed: R02S22611f6aefc1121b0ab2dc5286960449
+# GLib-GIO-DEBUG: _g_io_module_get_default: Found default implementation dconf (DConfSettingsBackend) for ‘gsettings-backend’
+# GLib-GIO-DEBUG: Using cross-namespace EXTERNAL authentication (this will deadlock if server is GDBus < 2.73.3)
+# GLib-GIO-DEBUG: Using cross-namespace EXTERNAL authentication (this will deadlock if server is GDBus < 2.73.3)
+1..1
+# Start of ops tests
+# testcase 0 op 0
+collecting# 
+    Cubic 0: # M 100.000000 100.000000 C 150.000000 100.000000 200.000000 100.000000 250.000000 100.000000 
+    Cubic 1: # M 250.000000 100.000000 C 300.000000 100.000000 350.000000 100.000000 400.000000 100.000000 
+    Line 2: # M 400 100 L 200 300 
+    Line 3: # M 200 300 L 100 100 
+    Cubic 4: # M 200.000000 100.000000 C 250.000000 100.000000 300.000000 100.000000 350.000000 100.000000 
+    Cubic 5: # M 350.000000 100.000000 C 400.000000 100.000000 450.000000 100.000000 500.000000 100.000000 
+    Line 6: # M 500 100 L 300 300 
+    Line 7: # M 300 300 L 200 100 
+splitting# 
+1 intersections between Cubic 0 and Cubic 1# 
+1 intersections between Cubic 0 and Line 3# 
+9 intersections between Cubic 0 and Cubic 4# 
+# split Cubic 0.0 from Cubic 0 at 0.666666: M 100.000000 100.000000 C 133.333298 100.000000 166.666595 100.000000 199.999893 100.000000
+split Cubic 0.1 from Cubic 0 at 0.666666: M 199.999893 100.000000 C 216.666595 100.000000 233.333298 100.000000 250.000000 100.000000split Cubic 0.4 from Cubic 0 at 0.00600814: M 200.300323 100.000000 C 216.866882 100.000000 233.433441 100.000000 250.000000 100.000000split Cubic 0.7 from Cubic 0 at 0.00604445: M 200.600708 100.000000 C 217.067139 100.000000 233.533569 100.000000 250.000000 100.000000# split Cubic 4.9 from Cubic 4 at 0.00533867: M 200.800812 100.000000 C 250.533875 100.000000 300.266937 100.000000 350.000000 100.000000
+1 intersections between Cubic 0.1 and Line 7# 
+1 intersections between Cubic 1 and Line 2# 
+9 intersections between Cubic 1 and Cubic 4.9# 
+split Cubic 1.9 from Cubic 1 at 0.00534248: M 250.801361 100.000000 C 300.534241 100.000000 350.267120 100.000000 400.000000 100.000000# split Cubic 4.9.0 from Cubic 4.9 at 0.329756: M 200.800812 100.000000 C 217.200577 100.000000 233.600342 100.000000 250.000122 100.000000
+# split Cubic 4.9.1 from Cubic 4.9 at 0.329756: M 250.000122 100.000000 C 283.333435 100.000000 316.666718 100.000000 350.000000 100.000000
+# split Cubic 4.9.6 from Cubic 4.9 at 0.00500283: M 250.500412 100.000000 C 283.666931 100.000000 316.833466 100.000000 350.000000 100.000000
+9 intersections between Cubic 1.9 and Cubic 5# 
+# split Cubic 1.9.0 from Cubic 1.9 at 0.664877: M 250.801361 100.000000 C 283.867615 100.000000 316.933868 100.000000 350.000122 100.000000
+split Cubic 1.9.1 from Cubic 1.9 at 0.664877: M 350.000122 100.000000 C 366.666748 100.000000 383.333374 100.000000 400.000000 100.000000split Cubic 1.9.4 from Cubic 1.9 at 0.00601021: M 350.300598 100.000000 C 366.867065 100.000000 383.433533 100.000000 400.000000 100.000000split Cubic 1.9.7 from Cubic 1.9 at 0.00604655: M 350.601074 100.000000 C 367.067383 100.000000 383.533691 100.000000 400.000000 100.000000# split Cubic 5.9 from Cubic 5 at 0.00534248: M 350.801361 100.000000 C 400.534241 100.000000 450.267120 100.000000 500.000000 100.000000
+1 intersections between Line 2 and Line 3# 
+1 intersections between Line 2 and Line 7# 
+# split Line 2.0 from Line 2 at 0.666667: M 400 100 L 266.667 233.333
+split Line 2.1 from Line 2 at 0.666667: M 266.667 233.333 L 200 300# split Line 7.0 from Line 7 at 0.333333: M 300 300 L 266.667 233.333
+# split Line 7.1 from Line 7 at 0.333333: M 266.667 233.333 L 200 100
+1 intersections between Cubic 4 and Cubic 4.9.0# 
+1 intersections between Cubic 4 and Line 7.1# 
+1 intersections between Cubic 4.9.0 and Cubic 4.9.1# 
+1 intersections between Cubic 4.9.1 and Cubic 4.9.6# 
+1 intersections between Cubic 4.9.6 and Cubic 5# 
+1 intersections between Cubic 5 and Cubic 5.9# 
+1 intersections between Cubic 5.9 and Line 6# 
+1 intersections between Line 6 and Line 7.0# 
+    Cubic 0.0: # M 100.000000 100.000000 C 133.333298 100.000000 166.666595 100.000000 199.999893 100.000000 
+    Cubic 0.1: # M 199.999893 100.000000 C 200.100037 100.000000 200.200180 100.000000 200.300323 100.000000 
+    Cubic 0.4: # M 200.300323 100.000000 C 200.400452 100.000000 200.500580 100.000000 200.600708 100.000000 
+    Cubic 0.7: # M 200.600708 100.000000 C 217.067139 100.000000 233.533569 100.000000 250.000000 100.000000 
+    Cubic 1: # M 250.000000 100.000000 C 250.267120 100.000000 250.534241 100.000000 250.801361 100.000000 
+    Cubic 1.9.0: # M 250.801361 100.000000 C 283.867615 100.000000 316.933868 100.000000 350.000122 100.000000 
+    Cubic 1.9.1: # M 350.000122 100.000000 C 350.100281 100.000000 350.200439 100.000000 350.300598 100.000000 
+    Cubic 1.9.4: # M 350.300598 100.000000 C 350.400757 100.000000 350.500916 100.000000 350.601074 100.000000 
+    Cubic 1.9.7: # M 350.601074 100.000000 C 367.067383 100.000000 383.533691 100.000000 400.000000 100.000000 
+    Line 2.0: # M 400 100 L 266.667 233.333 
+    Line 2.1: # M 266.667 233.333 L 200 300 
+    Line 3: # M 200 300 L 100 100 
+    Cubic 4: # M 200.000000 100.000000 C 200.266937 100.000000 200.533875 100.000000 200.800812 100.000000 
+    Cubic 4.9.0: # M 200.800812 100.000000 C 217.200577 100.000000 233.600342 100.000000 250.000122 100.000000 
+    Cubic 4.9.1: # M 250.000122 100.000000 C 250.166885 100.000000 250.333649 100.000000 250.500412 100.000000 
+    Cubic 4.9.6: # M 250.500412 100.000000 C 283.666931 100.000000 316.833466 100.000000 350.000000 100.000000 
+    Cubic 5: # M 350.000000 100.000000 C 350.267120 100.000000 350.534241 100.000000 350.801361 100.000000 
+    Cubic 5.9: # M 350.801361 100.000000 C 400.534241 100.000000 450.267120 100.000000 500.000000 100.000000 
+    Line 6: # M 500 100 L 300 300 
+    Line 7.0: # M 300 300 L 266.667 233.333 
+    Line 7.1: # M 266.667 233.333 L 200 100 
+classifying# 
+ 01 Cubic 0.0: # M 100.000000 100.000000 C 133.333298 100.000000 166.666595 100.000000 199.999893 100.000000 
+[11 Cubic 0.7: # M 200.600708 100.000000 C 217.067139 100.000000 233.533569 100.000000 250.000000 100.000000 ]
+[11 Cubic 1.9.0: # M 250.801361 100.000000 C 283.867615 100.000000 316.933868 100.000000 350.000122 100.000000 ]
+[11 Cubic 1.9.7: # M 350.601074 100.000000 C 367.067383 100.000000 383.533691 100.000000 400.000000 100.000000 ]
+[11 Line 2.0: # M 400 100 L 266.667 233.333 ]
+ 01 Line 2.1: # M 266.667 233.333 L 200 300 
+ 01 Line 3: # M 200 300 L 100 100 
+[11 Cubic 4: # M 200.000000 100.000000 C 200.266937 100.000000 200.533875 100.000000 200.800812 100.000000 ]
+[11 Cubic 4.9.0: # M 200.800812 100.000000 C 217.200577 100.000000 233.600342 100.000000 250.000122 100.000000 ]
+[11 Cubic 4.9.6: # M 250.500412 100.000000 C 283.666931 100.000000 316.833466 100.000000 350.000000 100.000000 ]
+[11 Cubic 5: # M 350.000000 100.000000 C 350.267120 100.000000 350.534241 100.000000 350.801361 100.000000 ]
+ 01 Cubic 5.9: # M 350.801361 100.000000 C 400.534241 100.000000 450.267120 100.000000 500.000000 100.000000 
+ 01 Line 6: # M 500 100 L 300 300 
+ 01 Line 7.0: # M 300 300 L 266.667 233.333 
+[11 Line 7.1: # M 266.667 233.333 L 200 100 ]
+fixups# 
+# found 3 bad nodes
+# split Cubic 0/Cubic 4 BAD 200.600723 100.000000
+# 	[11 Line 7.1 ] 116.565
+# 	[11 Cubic 0.7 ] 180
+# 	[11 Cubic 4 ] 180
+# 	[11 Cubic 4 ] 180
+# 	[11 Cubic 4.9.0 ] 180
+# 	>01 Cubic 0.0  360
+# split Cubic 1/Cubic 4.9 BAD 250.801376 100.000000
+# 	[11 Cubic 1.9.0 ] 180
+# 	[11 Cubic 4.9.6 ] 180
+# 	[11 Cubic 0.7 ] 360
+# 	[11 Cubic 4.9.0 ] 360
+# split Cubic 1.9/Cubic 5 BAD 350.601105 100.000000
+# 	[11 Cubic 1.9.7 ] 180
+# 	[11 Cubic 5 ] 180
+# 	[11 Cubic 5 ] 180
+# 	<01 Cubic 5.9  180
+# 	[11 Cubic 1.9.0 ] 360
+# 	[11 Cubic 4.9.6 ] 360
+reassembling# 
+start new contour Cubic 0.0# 
+# Cubic 0.0 ends at: 
+# start 0 100.000000 100.000000
+# 	>01 Line 3  116.565
+# 	(10 Cubic 0.0 ) 180
+picking cw# 
+append Line 3# 
+# Line 3 ends at: 
+# end 2 200.000000 300.000000
+# 	>01 Line 2.1  225
+# 	(10 Line 3 ) 296.565
+picking cw# 
+append Line 2.1# 
+# Line 2.1 ends at: 
+# split Line 2/Line 7 266.666656 233.333344
+# 	(10 Line 2.1 ) 45
+# 	>01 Line 7.0  116.565
+# 	[11 Line 2.0 ] 225
+# 	[11 Line 7.1 ] 296.565
+picking cw# 
+append Line 7.0# 
+# Line 7.0 ends at: 
+# end 6 300.000000 300.000000
+# 	>01 Line 6  225
+# 	(10 Line 7.0 ) 296.565
+picking cw# 
+append Line 6# 
+# Line 6 ends at: 
+# end 5 500.000000 100.000000
+# 	(10 Line 6 ) 45
+# 	>01 Cubic 5.9  360
+picking cw# 
+append Cubic 5.9# 
+# Cubic 5.9 ends at: 
+# split Cubic 1.9/Cubic 5 BAD 350.601105 100.000000
+# 	[11 Cubic 1.9.7 ] 180
+# 	[11 Cubic 5 ] 180
+# 	[11 Cubic 5 ] 180
+# 	(10 Cubic 5.9 ) 180
+# 	[11 Cubic 1.9.0 ] 360
+# 	[11 Cubic 4.9.6 ] 360
+picking cw# 
+**
+ERROR:../testsuite/gsk/path-ops.c:359:test_ops_simple: assertion failed (s == tests[i].out): ("M 354.60110473632812 100 A 4 4 0 0 0 346.60110473632812 100 A 4 4 0 0 0 354.60110473632812 100 z M 252.80137634277344 100 A 2 2 0 0 0 248.80137634277344 100 A 2 2 0 0 0 252.80137634277344 100 z M 204.60072326660156 100 A 4 4 0 0 0 196.60072326660156 100 A 4 4 0 0 0 204.60072326660156 100 z" == "M 100 100 z")
+not ok /ops/simple - ERROR:../testsuite/gsk/path-ops.c:359:test_ops_simple: assertion failed (s == tests[i].out): ("M 354.60110473632812 100 A 4 4 0 0 0 346.60110473632812 100 A 4 4 0 0 0 354.60110473632812 100 z M 252.80137634277344 100 A 2 2 0 0 0 248.80137634277344 100 A 2 2 0 0 0 252.80137634277344 100 z M 204.60072326660156 100 A 4 4 0 0 0 196.60072326660156 100 A 4 4 0 0 0 204.60072326660156 100 z" == "M 100 100 z")
+Bail out!

NEWS

@@ -1,139 +1,6 @@
-Overview of Changes in 4.13.1, xx-xx-xxxx
+Overview of Changes in 4.13.0, xx-xx-xxxx
 =========================================
 
-* GtkTooltip:
- - Don't cross native boundaries when looking for tooltips
-
-* GtkCenterLayout, GtkEntry, GtkSearchEntry:
- - Fix some issues with baseline handling
-
-* GtkFileChooser:
- - Make "Visit file" scroll to the file
-
-* GtkSwitch:
- - Respect text direction
-
-* Paths:
- - GskPathMeasure performance has been improved
- - Add custom contours for circles, rounded rectangles and rectangles
- - Simplify GskPathPoint handling
- - gsk_path_point_get_closest_point now returns the distance as well
-
-* Input:
- - Handle (some) single-key compose sequences
-
-* GSK:
- - Make the repeated gradients match between GL and cairo
- - Make rounded rect shrinking match between Vulkan, GL and cairo
- - Fix parsing of text nodes with color glyphs
- - Restrict an optimization to the cases where it is crrect
- - Fix rendering of shadows with opacity
- - The Vulkan renderer now requires Vulkan 1.2
-
-* macOS:
- - Clamp damage regions to the surface size
-
-* Tools:
- - gtk4-path-tool gained restrict and reverse commands
- - gtk4-path-tool show and render can show control points
-
-* Demos:
- - Add a demo for hit testing with paths
-
-* Build:
- - Fix build problems with C++ compilers
-
-* Translation updates
- Brazilian Portuguese
- British English
- Catalan
- Czech
- Danish
- Galician
- Georgian
- Italian
- Korean
- Lithuanian
- Polish
- Punjabi
- Slovenian
-
-
-Overview of Changes in 4.13.0, 25-08-2023
-=========================================
-
-* GskPath, GskPathBuilder, GskPathMeasure:
-  Data types and APIs for path rendering. These APIs are still
-  considered experimental, and may change until 4.14. Please try
-  them out and give us feedback. Documentation can be found
-  here: https://docs.gtk.org/gsk4/paths.html
-
-* GtkGridView:
- - Fix a crash when scrolling
-
-* GtkColumnView:
- - Fix a refcounting issue in the new scroll_to api
-
-* GtkTreeView
- - Fix style classes for sort arrows
-
-* GtkEntry:
- - Improve tracking of user changes (for undo)
-
-* GtkNotebook:
- - Fix a critical when switching pages
-
-* GtkColor/FontDialogButton:
- - Make these widgets activatable
-
-* GtkMenuButton:
- - Fix problems with focus handling
- - Fix problems with DND
- - Make flags a settable property
-
-* GtkShortcutsWindow:
- - Add API to build shortcuts windows programmatically
-
-* Printing
- - Fix the cpdb backend build
-
-* MacOS:
- - Make file filters work again
-
-* GSK:
- - Fix issues with color matrix nodes
-
-* Wayland:
- - Fix a crash with compositors other than gnome-shell
-
-* Deprecations:
- - Remaining GtkTreeModel-related types
-
-* Demos:
- - Add a few path demos to gtk4-demo
-
-* Tools:
- - gtk4-path-tool provides a commandline interface for paths
-
-* Translation updates:
- Basque
- Catalan
- Finnish
- Galician
- Georgian
- German
- Greek
- Indonesian
- Kazakh
- Persian
- Polish
- Romanian
- Spanish
- Swedish
- Turkish
- Ukrainian
-
-
 Overview of Changes in 4.12.0, 05-08-2023
 =========================================
 

demos/gtk-demo/application.c

@@ -223,7 +223,7 @@ delete_messages (gpointer data)
 static void
 pop_message (GtkWidget *status)
 {
-  GList *messages = (GList *) g_object_steal_data (G_OBJECT (status), "messages");
+  GList *messages = (GList *) g_object_get_data (G_OBJECT (status), "messages");
 
   if (messages)
     {
@@ -241,7 +241,7 @@ static void
 push_message (GtkWidget  *status,
               const char *message)
 {
-  GList *messages = (GList *) g_object_steal_data (G_OBJECT (status), "messages");
+  GList *messages = (GList *) g_object_get_data (G_OBJECT (status), "messages");
 
   gtk_label_set_label (GTK_LABEL (status), message);
   messages = g_list_prepend (messages, g_strdup (message));

demos/gtk-demo/demo.gresource.xml

@@ -127,7 +127,6 @@
     <file>fishbowl.ui</file>
     <file>gtkfishbowl.c</file>
     <file>gtkfishbowl.h</file>
-    <file>tiger.node</file>
   </gresource>
   <gresource prefix="/frames">
     <file>frames.ui</file>
@@ -295,7 +294,6 @@
     <file>gears.c</file>
     <file>gestures.c</file>
     <file>glarea.c</file>
-    <file>glyphs.c</file>
     <file>gltransition.c</file>
     <file>headerbar.c</file>
     <file>hypertext.c</file>
@@ -338,10 +336,6 @@
     <file>panes.c</file>
     <file>password_entry.c</file>
     <file>path_fill.c</file>
-    <file>path_maze.c</file>
-    <file>path_spinner.c</file>
-    <file>path_sweep.c</file>
-    <file>path_walk.c</file>
     <file>path_text.c</file>
     <file>peg_solitaire.c</file>
     <file>pickers.c</file>
@@ -428,14 +422,6 @@
   <gresource prefix="/fontrendering">
     <file>fontrendering.ui</file>
   </gresource>
-  <gresource prefix="/path_sweep">
-    <file>path_sweep.ui</file>
-    <file compressed="true">path_world.txt</file>
-  </gresource>
-  <gresource prefix="/path_walk">
-    <file>path_walk.ui</file>
-    <file compressed="true">path_world.txt</file>
-  </gresource>
   <gresource prefix="/path_text">
     <file>path_text.ui</file>
   </gresource>

demos/gtk-demo/fishbowl.c

@@ -11,9 +11,6 @@
 #include "gtkgears.h"
 #include "gskshaderpaintable.h"
 
-#include "nodewidget.h"
-#include "graphwidget.h"
-
 const char *const css =
 ".blurred-button {"
 "  box-shadow: 0px 0px 5px 10px rgba(0, 0, 0, 0.5);"
@@ -74,7 +71,14 @@ create_blurred_button (void)
 static GtkWidget *
 create_font_button (void)
 {
-  return gtk_font_dialog_button_new (gtk_font_dialog_new ());
+  GtkFontDialog *dialog;
+  GtkWidget *button;
+
+  dialog = gtk_font_dialog_new ();
+  button = gtk_font_dialog_button_new (dialog);
+  g_object_unref (dialog);
+
+  return button;
 }
 
 static GtkWidget *
@@ -204,18 +208,6 @@ create_menu_button (void)
   return w;
 }
 
-static GtkWidget *
-create_tiger (void)
-{
-  return node_widget_new ("/fishbowl/tiger.node");
-}
-
-static GtkWidget *
-create_graph (void)
-{
-  return graph_widget_new ();
-}
-
 static const struct {
   const char *name;
   GtkWidget * (*create_func) (void);
@@ -233,8 +225,6 @@ static const struct {
   { "Switch",     create_switch         },
   { "Menubutton", create_menu_button    },
   { "Shader",     create_cogs           },
-  { "Tiger",      create_tiger          },
-  { "Graph",      create_graph          },
 };
 
 static int selected_widget_type = -1;

demos/gtk-demo/graphwidget.c

@@ -1,153 +0,0 @@
-#include "graphwidget.h"
-
-struct _GraphWidget
-{
-  GtkWidget parent_instance;
-
-  GskPath *path;
-  GskStroke *stroke;
-  GdkRGBA color;
-
-  guint tick_cb;
-  guint64 start_time;
-
-  double period;
-  double amplitude;
-};
-
-struct _GraphWidgetClass
-{
-  GtkWidgetClass parent_class;
-};
-
-G_DEFINE_TYPE (GraphWidget, graph_widget, GTK_TYPE_WIDGET)
-
-static void
-update_path (GraphWidget *self,
-             float        amplitude)
-{
-  graphene_point_t p[20];
-  GskPathBuilder *builder;
-
-  g_clear_pointer (&self->path, gsk_path_unref);
-
-  for (int i = 0; i < 20; i++)
-    {
-      p[i].x = 10 * i;
-      p[i].y = 50;
-
-      if (i % 4 == 1 || i % 4 == 2)
-        {
-          if (i % 8 < 4)
-            p[i].y += amplitude;
-          else
-            p[i].y -= amplitude;
-        }
-    }
-
-  builder = gsk_path_builder_new ();
-  gsk_path_builder_move_to (builder, p[0].x, p[0].y);
-
-  for (int i = 0; i < 20; i += 4)
-    gsk_path_builder_cubic_to (builder,
-                               p[i+1].x, p[i+1].y,
-                               p[i+2].x, p[i+2].y,
-                               p[i+3].x, p[i+3].y);
-
-  self->path = gsk_path_builder_free_to_path (builder);
-}
-
-static gboolean
-tick_cb (GtkWidget     *widget,
-         GdkFrameClock *frame_clock,
-         gpointer       user_data)
-{
-  GraphWidget *self = GRAPH_WIDGET (widget);
-  guint64 now;
-  double angle;
-
-  now = gdk_frame_clock_get_frame_time (frame_clock);
-
-  if (self->start_time == 0)
-    self->start_time = now;
-
-  angle = 360 * (now - self->start_time) / (double)(self->period * G_TIME_SPAN_MINUTE);
-  update_path (self, sin (angle) * self->amplitude);
-
-  gtk_widget_queue_draw (widget);
-
-  return G_SOURCE_CONTINUE;
-}
-
-static void
-graph_widget_init (GraphWidget *self)
-{
-  self->color.red = g_random_double_range (0, 1);
-  self->color.green = g_random_double_range (0, 1);
-  self->color.blue = g_random_double_range (0, 1);
-  self->color.alpha = 1;
-
-  self->period = g_random_double_range (0.5, 1);
-  self->amplitude = g_random_double_range (10, 25);
-
-  self->stroke = gsk_stroke_new (2);
-
-  update_path (self, 0);
-
-  self->start_time = 0;
-  self->tick_cb = gtk_widget_add_tick_callback (GTK_WIDGET (self), tick_cb, NULL, NULL);
-}
-
-static void
-graph_widget_dispose (GObject *object)
-{
-  GraphWidget *self = GRAPH_WIDGET (object);
-
-  g_clear_pointer (&self->path, gsk_path_unref);
-  gsk_stroke_free (self->stroke);
-
-  G_OBJECT_CLASS (graph_widget_parent_class)->dispose (object);
-}
-
-static void
-graph_widget_snapshot (GtkWidget   *widget,
-                      GtkSnapshot *snapshot)
-{
-  GraphWidget *self = GRAPH_WIDGET (widget);
-
-  gtk_snapshot_append_stroke (snapshot, self->path, self->stroke, &self->color);
-}
-
-static void
-graph_widget_measure (GtkWidget      *widget,
-                      GtkOrientation  orientation,
-                      int             for_size,
-                      int            *minimum,
-                      int            *natural,
-                      int            *minimum_baseline,
-                      int            *natural_baseline)
-{
-  if (orientation == GTK_ORIENTATION_HORIZONTAL)
-    *minimum = *natural = 200;
-  else
-    *minimum = *natural = 100;
-}
-
-
-static void
-graph_widget_class_init (GraphWidgetClass *class)
-{
-  GObjectClass *object_class = G_OBJECT_CLASS (class);
-  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
-
-  object_class->dispose = graph_widget_dispose;
-
-  widget_class->snapshot = graph_widget_snapshot;
-  widget_class->measure = graph_widget_measure;
-}
-
-GtkWidget *
-graph_widget_new (void)
-{
-  return g_object_new (GRAPH_TYPE_WIDGET, NULL);
-}

demos/gtk-demo/graphwidget.h

@@ -1,8 +0,0 @@
-#pragma once
-
-#include <gtk/gtk.h>
-
-#define GRAPH_TYPE_WIDGET (graph_widget_get_type ())
-G_DECLARE_FINAL_TYPE (GraphWidget, graph_widget, GRAPH, WIDGET, GtkWidget)
-
-GtkWidget * graph_widget_new       (void);

demos/gtk-demo/gtkgears.c

@@ -840,24 +840,24 @@ gtk_gears_unrealize (GtkWidget *widget)
   GtkGearsPrivate *priv = gtk_gears_get_instance_private ((GtkGears *) widget);
 
   gtk_gl_area_make_current (glarea);
-  if (gtk_gl_area_get_error (glarea) == NULL)
-    {
-      /* Release the resources associated with OpenGL */
-      if (priv->gear_vbo[0] != 0)
-        glDeleteBuffers (1, &(priv->gear_vbo[0]));
+  if (gtk_gl_area_get_error (glarea) != NULL)
+    return;
 
-      if (priv->gear_vbo[1] != 0)
-        glDeleteBuffers (1, &(priv->gear_vbo[1]));
+  /* Release the resources associated with OpenGL */
+  if (priv->gear_vbo[0] != 0)
+    glDeleteBuffers (1, &(priv->gear_vbo[0]));
 
-      if (priv->gear_vbo[2] != 0)
-        glDeleteBuffers (1, &(priv->gear_vbo[2]));
+  if (priv->gear_vbo[1] != 0)
+    glDeleteBuffers (1, &(priv->gear_vbo[1]));
 
-      if (priv->vao != 0)
-        glDeleteVertexArrays (1, &priv->vao);
+  if (priv->gear_vbo[2] != 0)
+    glDeleteBuffers (1, &(priv->gear_vbo[2]));
 
-      if (priv->program != 0)
-        glDeleteProgram (priv->program);
-    }
+  if (priv->vao != 0)
+    glDeleteVertexArrays (1, &priv->vao);
+
+  if (priv->program != 0)
+    glDeleteProgram (priv->program);
 
   priv->ModelViewProjectionMatrix_location = 0;
   priv->NormalMatrix_location = 0;

demos/gtk-demo/meson.build

@@ -34,7 +34,6 @@ demos = files([
   'gestures.c',
   'glarea.c',
   'gltransition.c',
-  'glyphs.c',
   'headerbar.c',
   'hypertext.c',
   'iconscroll.c',
@@ -74,10 +73,6 @@ demos = files([
   'panes.c',
   'password_entry.c',
   'path_fill.c',
-  'path_maze.c',
-  'path_spinner.c',
-  'path_sweep.c',
-  'path_walk.c',
   'path_text.c',
   'peg_solitaire.c',
   'pickers.c',
@@ -143,8 +138,6 @@ extra_demo_sources = files([
   'unicode-names.c',
   'suggestionentry.c',
   'language-names.c',
-  'nodewidget.c',
-  'graphwidget.c',
 ])
 
 if os_unix

demos/gtk-demo/nodewidget.c

@@ -1,76 +0,0 @@
-#include "nodewidget.h"
-
-struct _NodeWidget
-{
-  GtkWidget parent_instance;
-
-  GskRenderNode *node;
-};
-
-struct _NodeWidgetClass
-{
-  GtkWidgetClass parent_class;
-};
-
-G_DEFINE_TYPE (NodeWidget, node_widget, GTK_TYPE_WIDGET)
-
-static void
-node_widget_init (NodeWidget *self)
-{
-}
-
-static void
-node_widget_dispose (GObject *object)
-{
-  NodeWidget *self = NODE_WIDGET (object);
-
-  gsk_render_node_unref (self->node);
-
-  G_OBJECT_CLASS (node_widget_parent_class)->dispose (object);
-}
-
-static void
-node_widget_snapshot (GtkWidget   *widget,
-                      GtkSnapshot *snapshot)
-{
-  NodeWidget *self = NODE_WIDGET (widget);
-
-  gtk_snapshot_append_node (snapshot, self->node);
-}
-
-static void
-node_widget_class_init (NodeWidgetClass *class)
-{
-  GObjectClass *object_class = G_OBJECT_CLASS (class);
-  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
-
-  object_class->dispose = node_widget_dispose;
-
-  widget_class->snapshot = node_widget_snapshot;
-}
-
-GtkWidget *
-node_widget_new (const char *resource)
-{
-  NodeWidget *self;
-  GBytes *bytes;
-  GskRenderNode *node;
-  graphene_rect_t bounds;
-  float scale;
-  GskTransform *transform;
-
-  self = g_object_new (NODE_TYPE_WIDGET, NULL);
-
-  bytes = g_resources_lookup_data (resource, 0, NULL);
-  node = gsk_render_node_deserialize (bytes, NULL, NULL);
-  g_bytes_unref (bytes);
-
-  gsk_render_node_get_bounds (node, &bounds);
-  scale = MIN (100.0/bounds.size.width, 100.0/bounds.size.height);
-  transform = gsk_transform_scale (NULL, scale, scale);
-  self->node = gsk_transform_node_new (node, transform);
-  gsk_transform_unref (transform);
-  gsk_render_node_unref (node);
-
-  return GTK_WIDGET (self);
-}

demos/gtk-demo/nodewidget.h

@@ -1,8 +0,0 @@
-#pragma once
-
-#include <gtk/gtk.h>
-
-#define NODE_TYPE_WIDGET (node_widget_get_type ())
-G_DECLARE_FINAL_TYPE (NodeWidget, node_widget, NODE, WIDGET, GtkWidget)
-
-GtkWidget * node_widget_new       (const char *file);

demos/gtk-demo/path_fill.c

@@ -177,7 +177,7 @@ do_path_fill (GtkWidget *do_widget)
 
       window = gtk_window_new ();
       gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
-      gtk_window_set_title (GTK_WINDOW (window), "Fill and Stroke");
+      gtk_window_set_title (GTK_WINDOW (window), "Path Fill");
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
 
       paintable = gtk_logo_paintable_new ();

demos/gtk-demo/path_maze.c

@@ -1,369 +0,0 @@
-/* Path/Maze
- *
- * This demo shows how to use a GskPath to create a maze and use
- * gsk_path_get_closest_point() to check the mouse stays
- * on the path.
- *
- * It also shows off the performance of GskPath (or not) as this
- * is a rather complex path.
- */
-
-#include "config.h"
-#include <glib/gi18n.h>
-#include <gtk/gtk.h>
-
-#include "paintable.h"
-
-#define MAZE_GRID_SIZE 20
-#define MAZE_STROKE_SIZE_ACTIVE (MAZE_GRID_SIZE - 4)
-#define MAZE_STROKE_SIZE_INACTIVE (MAZE_GRID_SIZE - 12)
-#define MAZE_WIDTH 31
-#define MAZE_HEIGHT 21
-
-#define GTK_TYPE_MAZE (gtk_maze_get_type ())
-G_DECLARE_FINAL_TYPE (GtkMaze, gtk_maze, GTK, MAZE, GtkWidget)
-
-struct _GtkMaze
-{
-  GtkWidget parent_instance;
-
-  int width;
-  int height;
-  GskPath *path;
-  GskPathMeasure *measure;
-  GdkPaintable *background;
-
-  gboolean active;
-};
-
-struct _GtkMazeClass
-{
-  GtkWidgetClass parent_class;
-};
-
-G_DEFINE_TYPE (GtkMaze, gtk_maze, GTK_TYPE_WIDGET)
-
-static void
-gtk_maze_measure (GtkWidget      *widget,
-                  GtkOrientation  orientation,
-                  int             for_size,
-                  int            *minimum,
-                  int            *natural,
-                  int            *minimum_baseline,
-                  int            *natural_baseline)
-{
-  GtkMaze *self = GTK_MAZE (widget);
-
-  if (orientation == GTK_ORIENTATION_HORIZONTAL)
-    *minimum = *natural = self->width;
-  else
-    *minimum = *natural = self->height;
-}
-
-static void
-gtk_maze_snapshot (GtkWidget   *widget,
-                   GdkSnapshot *snapshot)
-{
-  GtkMaze *self = GTK_MAZE (widget);
-  double width = gtk_widget_get_width (widget);
-  double height = gtk_widget_get_height (widget);
-  GskStroke *stroke;
-
-  stroke = gsk_stroke_new (MAZE_STROKE_SIZE_INACTIVE);
-  if (self->active)
-    gsk_stroke_set_line_width (stroke, MAZE_STROKE_SIZE_ACTIVE);
-  gsk_stroke_set_line_join (stroke, GSK_LINE_JOIN_ROUND);
-  gsk_stroke_set_line_cap (stroke, GSK_LINE_CAP_ROUND);
-  gtk_snapshot_push_stroke (snapshot, self->path, stroke);
-  gsk_stroke_free (stroke);
-
-  if (self->background)
-    {
-      gdk_paintable_snapshot (self->background, snapshot, width, height);
-    }
-  else
-    {
-      gtk_snapshot_append_linear_gradient (snapshot,
-                                           &GRAPHENE_RECT_INIT (0, 0, width, height),
-                                           &GRAPHENE_POINT_INIT (0, 0),
-                                           &GRAPHENE_POINT_INIT (width, height),
-                                           (GskColorStop[8]) {
-                                             { 0.0, { 1.0, 0.0, 0.0, 1.0 } },
-                                             { 0.2, { 1.0, 0.0, 0.0, 1.0 } },
-                                             { 0.3, { 1.0, 1.0, 0.0, 1.0 } },
-                                             { 0.4, { 0.0, 1.0, 0.0, 1.0 } },
-                                             { 0.6, { 0.0, 1.0, 1.0, 1.0 } },
-                                             { 0.7, { 0.0, 0.0, 1.0, 1.0 } },
-                                             { 0.8, { 1.0, 0.0, 1.0, 1.0 } },
-                                             { 1.0, { 1.0, 0.0, 1.0, 1.0 } }
-                                           },
-                                           8);
-    }
-
-  gtk_snapshot_pop (snapshot);
-
-}
-
-static void
-gtk_maze_dispose (GObject *object)
-{
-  GtkMaze *self = GTK_MAZE (object);
-
-  g_clear_pointer (&self->path, gsk_path_unref);
-  g_clear_pointer (&self->measure, gsk_path_measure_unref);
-  if (self->background)
-    {
-      g_signal_handlers_disconnect_matched (self->background, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, self);
-      g_clear_object (&self->background);
-    }
-
-  G_OBJECT_CLASS (gtk_maze_parent_class)->dispose (object);
-}
-
-static void
-gtk_maze_class_init (GtkMazeClass *klass)
-{
-  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
-  GObjectClass *object_class = G_OBJECT_CLASS (klass);
-
-  object_class->dispose = gtk_maze_dispose;
-
-  widget_class->measure = gtk_maze_measure;
-  widget_class->snapshot = gtk_maze_snapshot;
-}
-
-static void
-celebrate (gboolean win)
-{
-  char *path;
-  GtkMediaStream *stream;
-
-  if (win)
-    path = g_build_filename (GTK_DATADIR, "sounds", "freedesktop", "stereo", "complete.oga", NULL);
-  else
-    path = g_build_filename (GTK_DATADIR, "sounds", "freedesktop", "stereo", "suspend-error.oga", NULL);
-  stream = gtk_media_file_new_for_filename (path);
-  gtk_media_stream_set_volume (stream, 1.0);
-  gtk_media_stream_play (stream);
-
-  g_signal_connect (stream, "notify::ended", G_CALLBACK (g_object_unref), NULL);
-  g_free (path);
-}
-
-static void
-pointer_motion (GtkEventControllerMotion *controller,
-                double                    x,
-                double                    y,
-                GtkMaze                  *self)
-{
-  GskPathPoint point;
-  float distance;
-
-  if (!self->active)
-    return;
-
-  if (gsk_path_get_closest_point (self->path,
-                                  &GRAPHENE_POINT_INIT (x, y),
-                                  INFINITY,
-                                  &point,
-                                  &distance))
-    {
-      if (distance < MAZE_STROKE_SIZE_ACTIVE / 2.f)
-        return;
-    }
-
-  celebrate (FALSE);
-
-  self->active = FALSE;
-  gtk_widget_queue_draw (GTK_WIDGET (self));
-}
-
-static void
-pointer_leave (GtkEventControllerMotion *controller,
-               GtkMaze                  *self)
-{
-  if (!self->active)
-    {
-      self->active = TRUE;
-      gtk_widget_queue_draw (GTK_WIDGET (self));
-    }
-}
-
-static void
-gtk_maze_init (GtkMaze *self)
-{
-  GtkEventController *controller;
-
-  controller = GTK_EVENT_CONTROLLER (gtk_event_controller_motion_new ());
-  g_signal_connect (controller, "motion", G_CALLBACK (pointer_motion), self);
-  g_signal_connect (controller, "leave", G_CALLBACK (pointer_leave), self);
-  gtk_widget_add_controller (GTK_WIDGET (self), controller);
-
-  self->active = TRUE;
-}
-
-static void
-gtk_maze_set_path (GtkMaze *self,
-                   GskPath *path)
-{
-  g_clear_pointer (&self->path, gsk_path_unref);
-  g_clear_pointer (&self->measure, gsk_path_measure_unref);
-  self->path = gsk_path_ref (path);
-  self->measure = gsk_path_measure_new (path);
-
-  gtk_widget_queue_draw (GTK_WIDGET (self));
-}
-
-GtkWidget *
-gtk_maze_new (GskPath      *path,
-              GdkPaintable *background,
-              int           width,
-              int           height)
-{
-  GtkMaze *self;
-
-  self = g_object_new (GTK_TYPE_MAZE, NULL);
-
-  gtk_maze_set_path (self, path);
-  gsk_path_unref (path);
-  self->background = background;
-  if (self->background)
-    {
-      g_signal_connect_swapped (self->background, "invalidate-contents", G_CALLBACK (gtk_widget_queue_draw), self);
-      g_signal_connect_swapped (self->background, "invalidate-size", G_CALLBACK (gtk_widget_queue_resize), self);
-    }
-  self->width = width;
-  self->height = height;
-
-  return GTK_WIDGET (self);
-}
-
-static void
-add_point_to_maze (GtkBitset      *maze,
-                   GskPathBuilder *builder,
-                   guint           x,
-                   guint           y)
-{
-  gboolean set[4] = { FALSE, FALSE, FALSE, FALSE };
-  guint dir;
-
-  gtk_bitset_add (maze, y * MAZE_WIDTH + x);
-
-  while (TRUE)
-    {
-      set[0] = set[0] || x == 0 || gtk_bitset_contains (maze, y * MAZE_WIDTH + x - 1);
-      set[1] = set[1] || y == 0 || gtk_bitset_contains (maze, (y - 1) * MAZE_WIDTH + x);
-      set[2] = set[2] || x + 1 == MAZE_WIDTH || gtk_bitset_contains (maze, y * MAZE_WIDTH + x + 1);
-      set[3] = set[3] || y + 1 == MAZE_HEIGHT || gtk_bitset_contains (maze, (y + 1) * MAZE_WIDTH + x);
-
-      if (set[0] && set[1] && set[2] && set[3])
-        return;
-      
-      do
-        {
-          dir = g_random_int_range (0, 4);
-        }
-      while (set[dir]);
-
-      switch (dir)
-        {
-          case 0:
-            gsk_path_builder_move_to (builder, (x + 0.5) * MAZE_GRID_SIZE, (y + 0.5) * MAZE_GRID_SIZE);
-            gsk_path_builder_line_to (builder, (x - 0.5) * MAZE_GRID_SIZE, (y + 0.5) * MAZE_GRID_SIZE);
-            add_point_to_maze (maze, builder, x - 1, y);
-            break;
-
-          case 1:
-            gsk_path_builder_move_to (builder, (x + 0.5) * MAZE_GRID_SIZE, (y + 0.5) * MAZE_GRID_SIZE);
-            gsk_path_builder_line_to (builder, (x + 0.5) * MAZE_GRID_SIZE, (y - 0.5) * MAZE_GRID_SIZE);
-            add_point_to_maze (maze, builder, x, y - 1);
-            break;
-
-          case 2:
-            gsk_path_builder_move_to (builder, (x + 0.5) * MAZE_GRID_SIZE, (y + 0.5) * MAZE_GRID_SIZE);
-            gsk_path_builder_line_to (builder, (x + 1.5) * MAZE_GRID_SIZE, (y + 0.5) * MAZE_GRID_SIZE);
-            add_point_to_maze (maze, builder, x + 1, y);
-            break;
-
-          case 3:
-            gsk_path_builder_move_to (builder, (x + 0.5) * MAZE_GRID_SIZE, (y + 0.5) * MAZE_GRID_SIZE);
-            gsk_path_builder_line_to (builder, (x + 0.5) * MAZE_GRID_SIZE, (y + 1.5) * MAZE_GRID_SIZE);
-            add_point_to_maze (maze, builder, x, y + 1);
-            break;
-
-          default:
-            g_assert_not_reached ();
-            break;
-        }
-    }
-}
-
-static GskPath *
-create_path_for_maze (GtkWidget *widget)
-{
-  GskPathBuilder *builder;
-  GtkBitset *maze;
-
-  builder = gsk_path_builder_new ();
-  maze = gtk_bitset_new_empty ();
-  /* make sure the outer lines are unreachable:
-   * Set the full range, then remove the center again. */
-  gtk_bitset_add_range (maze, 0, MAZE_WIDTH * MAZE_HEIGHT);
-  gtk_bitset_remove_rectangle (maze, MAZE_WIDTH + 1, MAZE_WIDTH - 2, MAZE_HEIGHT - 2, MAZE_WIDTH);
-
-  /* Fill the maze */
-  add_point_to_maze (maze, builder, MAZE_WIDTH / 2, MAZE_HEIGHT / 2);
-
-  /* Add start and stop lines */
-  gsk_path_builder_move_to (builder, 1.5 * MAZE_GRID_SIZE, -0.5 * MAZE_GRID_SIZE);
-  gsk_path_builder_line_to (builder, 1.5 * MAZE_GRID_SIZE, 1.5 * MAZE_GRID_SIZE);
-  gsk_path_builder_move_to (builder, (MAZE_WIDTH - 1.5) * MAZE_GRID_SIZE, (MAZE_HEIGHT - 1.5) * MAZE_GRID_SIZE);
-  gsk_path_builder_line_to (builder, (MAZE_WIDTH - 1.5) * MAZE_GRID_SIZE, (MAZE_HEIGHT + 0.5) * MAZE_GRID_SIZE);
-
-
-  gtk_bitset_unref (maze);
-
-  return gsk_path_builder_free_to_path (builder);
-}
-
-GtkWidget *
-do_path_maze (GtkWidget *do_widget)
-{
-  static GtkWidget *window = NULL;
-
-  if (!window)
-    {
-      GtkWidget *maze;
-      GtkMediaStream *stream;
-      GskPath *path;
-
-      window = gtk_window_new ();
-      gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
-      gtk_window_set_title (GTK_WINDOW (window), "Follow the maze with the mouse");
-      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
-
-#if 0
-      stream = gtk_media_file_new_for_resource ("/images/gtk-logo.webm");
-#else
-      stream = gtk_nuclear_media_stream_new ();
-#endif
-      gtk_media_stream_play (stream);
-      gtk_media_stream_set_loop (stream, TRUE);
-
-      path = create_path_for_maze (window);
-
-      maze = gtk_maze_new (path,
-                           GDK_PAINTABLE (stream),
-                           MAZE_WIDTH * MAZE_GRID_SIZE,
-                           MAZE_HEIGHT * MAZE_GRID_SIZE);
-
-      gtk_window_set_child (GTK_WINDOW (window), maze);
-    }
-
-  if (!gtk_widget_get_visible (window))
-    gtk_window_present (GTK_WINDOW (window));
-  else
-    gtk_window_destroy (GTK_WINDOW (window));
-
-  return window;
-}

demos/gtk-demo/path_spinner.c

@@ -1,323 +0,0 @@
-/* Path/Spinner
- *
- * This demo shows how to use GskPath to draw a simple animation
- * that could be used as a spinner.
- */
-
-#include <glib/gi18n.h>
-#include <gtk/gtk.h>
-
-#include "paintable.h"
-
-#undef SHOW_CONTROLS
-
-#define GTK_TYPE_SPINNER_PAINTABLE (gtk_spinner_paintable_get_type ())
-G_DECLARE_FINAL_TYPE (GtkSpinnerPaintable, gtk_spinner_paintable, GTK, SPINNER_PAINTABLE, GObject)
-
-struct _GtkSpinnerPaintable
-{
-  GObject parent_instance;
-
-  gint64 start_time;
-
-  int width;
-  double angle;
-  double completion;
-
-  GskPath *circle;
-  GskPath *path;
-  GskStroke *stroke;
-  GdkRGBA color;
-  GdkRGBA circle_color;
-#ifdef SHOW_CONTROLS
-  GskPath *controls;
-  GdkRGBA control_color;
-#endif
-};
-
-struct _GtkSpinnerPaintableClass
-{
-  GObjectClass parent_class;
-};
-
-static int
-gtk_spinner_paintable_get_intrinsic_width (GdkPaintable *paintable)
-{
-  GtkSpinnerPaintable *self = GTK_SPINNER_PAINTABLE (paintable);
-
-  return self->width;
-}
-
-static int
-gtk_spinner_paintable_get_intrinsic_height (GdkPaintable *paintable)
-{
-  GtkSpinnerPaintable *self = GTK_SPINNER_PAINTABLE (paintable);
-
-  return self->width;
-}
-
-static void
-gtk_spinner_paintable_snapshot (GdkPaintable *paintable,
-                                GdkSnapshot  *snapshot,
-                                double        width,
-                                double        height)
-{
-  GtkSpinnerPaintable *self = GTK_SPINNER_PAINTABLE (paintable);
-
-  gtk_snapshot_append_stroke (snapshot, self->circle, self->stroke, &self->circle_color);
-  gtk_snapshot_append_stroke (snapshot, self->path, self->stroke, &self->color);
-#ifdef SHOW_CONTROLS
-  GskStroke *stroke = gsk_stroke_new (1);
-  gtk_snapshot_append_stroke (snapshot, self->controls, stroke, &self->control_color);
-  gsk_stroke_free (stroke);
-#endif
-}
-
-static GdkPaintableFlags
-gtk_spinner_paintable_get_flags (GdkPaintable *paintable)
-{
-  return GDK_PAINTABLE_STATIC_SIZE;
-}
-
-static void
-gtk_spinner_paintable_paintable_init (GdkPaintableInterface *iface)
-{
-  iface->get_intrinsic_width = gtk_spinner_paintable_get_intrinsic_width;
-  iface->get_intrinsic_height = gtk_spinner_paintable_get_intrinsic_height;
-  iface->snapshot = gtk_spinner_paintable_snapshot;
-  iface->get_flags = gtk_spinner_paintable_get_flags;
-}
-
-/* When defining the GType, we need to implement the GdkPaintable interface */
-G_DEFINE_TYPE_WITH_CODE (GtkSpinnerPaintable, gtk_spinner_paintable, G_TYPE_OBJECT,
-                         G_IMPLEMENT_INTERFACE (GDK_TYPE_PAINTABLE,
-                                                gtk_spinner_paintable_paintable_init))
-
-static void
-gtk_spinner_paintable_dispose (GObject *object)
-{
-  GtkSpinnerPaintable *self = GTK_SPINNER_PAINTABLE (object);
-
-  gsk_path_unref (self->circle);
-  gsk_path_unref (self->path);
-#ifdef SHOW_CONTROLS
-  gsk_path_unref (self->controls);
-#endif
-
-  gsk_stroke_free (self->stroke);
-
-  G_OBJECT_CLASS (gtk_spinner_paintable_parent_class)->dispose (object);
-}
-
-static void
-gtk_spinner_paintable_class_init (GtkSpinnerPaintableClass *klass)
-{
-  GObjectClass *object_class = G_OBJECT_CLASS (klass);
-
-  object_class->dispose = gtk_spinner_paintable_dispose;
-}
-
-static void
-gtk_spinner_paintable_init (GtkSpinnerPaintable *self)
-{
-}
-
-static GdkPaintable *
-gtk_spinner_paintable_new (void)
-{
-  GtkSpinnerPaintable *self;
-  GskPathBuilder *builder;
-
-  self = g_object_new (GTK_TYPE_SPINNER_PAINTABLE, NULL);
-
-  builder = gsk_path_builder_new ();
-  gsk_path_builder_add_circle (builder, &GRAPHENE_POINT_INIT (50, 50), 40);
-  self->circle = gsk_path_builder_free_to_path (builder);
-
-  self->width = 100;
-  self->angle = 0;
-  self->completion = 1;
-  gdk_rgba_parse (&self->color, "green");
-  gdk_rgba_parse (&self->circle_color, "lightgray");
-#ifdef SHOW_CONTROLS
-  gdk_rgba_parse (&self->control_color, "black");
-#endif
-  self->stroke = gsk_stroke_new (5);
-
-  return GDK_PAINTABLE (self);
-}
-
-#ifdef SHOW_CONTROLS
-static gboolean
-add_controls (GskPathOperation        op,
-              const graphene_point_t *pts,
-              gsize                   n_pts,
-              float                   weight,
-              gpointer                data)
-{
-  GskPathBuilder *builder = data;
-
-  switch (op)
-    {
-    case GSK_PATH_MOVE:
-      gsk_path_builder_move_to (builder, pts[0].x, pts[0].y);
-      break;
-
-    case GSK_PATH_CLOSE:
-    case GSK_PATH_LINE:
-      gsk_path_builder_line_to (builder, pts[1].x, pts[1].y);
-      break;
-
-    case GSK_PATH_QUAD:
-    case GSK_PATH_CONIC:
-      gsk_path_builder_line_to (builder, pts[1].x, pts[1].y);
-      gsk_path_builder_line_to (builder, pts[2].x, pts[2].y);
-      break;
-
-    case GSK_PATH_CUBIC:
-      gsk_path_builder_line_to (builder, pts[1].x, pts[1].y);
-      gsk_path_builder_line_to (builder, pts[2].x, pts[2].y);
-      gsk_path_builder_line_to (builder, pts[3].x, pts[3].y);
-      break;
-
-    default:
-      g_assert_not_reached ();
-    }
-
-  return TRUE;
-}
-#endif
-
-static void
-update_path (GtkSpinnerPaintable *self)
-{
-  GskPathBuilder *builder;
-  GskPathPoint start, end;
-  graphene_point_t p0, p1;
-  float start_angle, end_angle;
-
-  start_angle = self->angle;
-  end_angle = fmod (self->angle + 360 * self->completion / 100, 360);
-
-  p0 = GRAPHENE_POINT_INIT (50 + 40 * cos (M_PI * start_angle / 180),
-                            50 + 40 * sin (M_PI * start_angle / 180));
-  p1 = GRAPHENE_POINT_INIT (50 + 40 * cos (M_PI * end_angle / 180),
-                            50 + 40 * sin (M_PI * end_angle / 180));
-
-  g_clear_pointer (&self->path, gsk_path_unref);
-
-  gsk_path_get_closest_point (self->circle, &p0, INFINITY, &start, NULL);
-  gsk_path_get_closest_point (self->circle, &p1, INFINITY, &end, NULL);
-
-  builder = gsk_path_builder_new ();
-  gsk_path_builder_add_segment (builder, self->circle, &start, &end);
-  self->path = gsk_path_builder_free_to_path (builder);
-
-#ifdef SHOW_CONTROLS
-  g_clear_pointer (&self->controls, gsk_path_unref);
-  builder = gsk_path_builder_new ();
-  gsk_path_foreach (self->path, -1, add_controls, builder);
-  self->controls = gsk_path_builder_free_to_path (builder);
-#endif
-
-  gdk_paintable_invalidate_contents (GDK_PAINTABLE (self));
-}
-
-static void
-gtk_spinner_paintable_set_completion (GtkSpinnerPaintable *self,
-                                   float             completion)
-{
-  self->completion = CLAMP (completion, 0, 100);
-  update_path (self);
-}
-
-static float
-gtk_spinner_paintable_get_completion (GtkSpinnerPaintable *self)
-{
-  return self->completion;
-}
-
-static void
-gtk_spinner_paintable_set_frame_time (GtkSpinnerPaintable *self,
-                                      gint64            time)
-{
-  double delta;
-
-  if (self->start_time == 0)
-    self->start_time = time;
-
-  delta = (time - self->start_time) / (double) G_TIME_SPAN_SECOND;
-  self->angle = fmod (60 * delta, 360);
-  update_path (self);
-}
-
-static gboolean
-tick_cb (GtkWidget *widget,
-         GdkFrameClock *clock,
-         gpointer data)
-{
-  GtkSpinnerPaintable *self = data;
-
-  gtk_spinner_paintable_set_frame_time (self, gdk_frame_clock_get_frame_time (clock));
-  return G_SOURCE_CONTINUE;
-}
-
-static gboolean
-progress_timeout (gpointer data)
-{
-  GtkSpinnerPaintable *self = data;
-  static float progress_delta = 0.5;
-  float progress;
-
-  progress = gtk_spinner_paintable_get_completion (self);
-  if (progress >= 100 || progress <= 0)
-    progress_delta = -progress_delta;
-
-  gtk_spinner_paintable_set_completion (self, progress + progress_delta);
-
-  return G_SOURCE_CONTINUE;
-}
-
-static void
-unset_timeout (gpointer data)
-{
-  g_source_remove (GPOINTER_TO_UINT (data));
-}
-
-GtkWidget *
-do_path_spinner (GtkWidget *do_widget)
-{
-  static GtkWidget *window = NULL;
-
-  if (!window)
-    {
-      GtkWidget *picture;
-      GdkPaintable *paintable;
-      guint timeout_id;
-
-      window = gtk_window_new ();
-      gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
-      gtk_window_set_title (GTK_WINDOW (window), "Spinner");
-      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
-
-      paintable = gtk_spinner_paintable_new ();
-      picture = gtk_picture_new_for_paintable (paintable);
-      gtk_picture_set_content_fit (GTK_PICTURE (picture), GTK_CONTENT_FIT_CONTAIN);
-      gtk_picture_set_can_shrink (GTK_PICTURE (picture), FALSE);
-      g_object_unref (paintable);
-
-      gtk_widget_add_tick_callback (picture, tick_cb, paintable, NULL);
-      timeout_id = g_timeout_add (100, progress_timeout, paintable);
-
-      g_object_set_data_full (G_OBJECT (picture), "timeout", GUINT_TO_POINTER (timeout_id), unset_timeout);
-
-      gtk_window_set_child (GTK_WINDOW (window), picture);
-    }
-
-  if (!gtk_widget_get_visible (window))
-    gtk_window_present (GTK_WINDOW (window));
-  else
-    gtk_window_destroy (GTK_WINDOW (window));
-
-  return window;
-}

demos/gtk-demo/path_sweep.c

@@ -1,319 +0,0 @@
-/* Path/Sweep
- *
- * This demo shows how path intersections can be used.
- *
- * The world map that is used here is a path with 211 lines and 1569 cubic
- * Bėzier segments in 121 contours.
- */
-
-#include <glib/gi18n.h>
-#include <gtk/gtk.h>
-
-#define GTK_TYPE_PATH_SWEEP (gtk_path_sweep_get_type ())
-G_DECLARE_FINAL_TYPE (GtkPathSweep, gtk_path_sweep, GTK, PATH_SWEEP, GtkWidget)
-
-#define POINT_SIZE 8
-
-enum {
-  PROP_0,
-  PROP_PATH,
-  N_PROPS
-};
-
-struct _GtkPathSweep
-{
-  GtkWidget parent_instance;
-
-  GskPath *path;
-  graphene_rect_t bounds;
-  float y_pos;
-  gboolean in;
-};
-
-struct _GtkPathSweepClass
-{
-  GtkWidgetClass parent_class;
-};
-
-static GParamSpec *properties[N_PROPS] = { NULL, };
-
-G_DEFINE_TYPE (GtkPathSweep, gtk_path_sweep, GTK_TYPE_WIDGET)
-
-static gboolean
-intersection_cb (GskPath             *path1,
-                 const GskPathPoint  *point1,
-                 GskPath             *path2,
-                 const GskPathPoint  *point2,
-                 GskPathIntersection  kind,
-                 gpointer             data)
-{
-  GskPathBuilder *builder = data;
-  graphene_point_t p;
-
-  gsk_path_point_get_position (point1, path1, &p);
-  gsk_path_builder_add_circle (builder, &p, 4);
-
-  return TRUE;
-}
-
-static GskPath *
-get_intersection_path (GskPath *path1,
-                       GskPath *path2)
-{
-  GskPathBuilder *builder = gsk_path_builder_new ();
-
-  gsk_path_foreach_intersection (path1, path2, intersection_cb, builder);
-
-  return gsk_path_builder_to_path (builder);
-}
-
-static void
-gtk_path_sweep_snapshot (GtkWidget   *widget,
-                        GtkSnapshot *snapshot)
-{
-  GtkPathSweep *self = GTK_PATH_SWEEP (widget);
-  GskStroke *stroke;
-
-  if (self->path == NULL)
-    return;
-
-  gtk_snapshot_save (snapshot);
-
-  stroke = gsk_stroke_new (2.0);
-
-  gtk_snapshot_append_stroke (snapshot, self->path, stroke, &(GdkRGBA) { 0, 0, 0, 1 });
-
-  if (self->in)
-    {
-      graphene_rect_t bounds;
-      GskPathBuilder *builder;
-      GskPath *line, *isecs;
-
-      gsk_path_get_stroke_bounds (self->path, stroke, &bounds);
-
-      builder = gsk_path_builder_new ();
-      gsk_path_builder_move_to (builder, bounds.origin.x, bounds.origin.y + self->y_pos);
-      gsk_path_builder_line_to (builder, bounds.origin.x + bounds.size.width, bounds.origin.y + self->y_pos);
-      line = gsk_path_builder_free_to_path (builder);
-
-      gtk_snapshot_append_stroke (snapshot, line, stroke, &(GdkRGBA) { 0, 0, 0, 1 });
-
-      isecs = get_intersection_path (self->path, line);
-
-      gtk_snapshot_append_fill (snapshot, isecs, GSK_FILL_RULE_WINDING, &(GdkRGBA) { 1, 0, 0, 1 });
-      gtk_snapshot_append_stroke (snapshot, isecs, stroke, &(GdkRGBA) { 0, 0, 0, 1 });
-
-      gsk_path_unref (isecs);
-      gsk_path_unref (line);
-    }
-
-  gsk_stroke_free (stroke);
-
-  gtk_snapshot_restore (snapshot);
-}
-
-static void
-gtk_path_sweep_measure (GtkWidget      *widget,
-                        GtkOrientation  orientation,
-                        int             for_size,
-                        int            *minimum,
-                        int            *natural,
-                        int            *minimum_baseline,
-                        int            *natural_baseline)
-{
-  GtkPathSweep *self = GTK_PATH_SWEEP (widget);
-
-  if (orientation == GTK_ORIENTATION_HORIZONTAL)
-    *minimum = *natural = (int) ceilf (self->bounds.size.width);
-  else
-    *minimum = *natural = (int) ceilf (self->bounds.size.height);
-}
-
-static void
-gtk_path_sweep_set_path (GtkPathSweep *self,
-                        GskPath     *path)
-{
-  if (self->path == path)
-    return;
-
-  g_clear_pointer (&self->path, gsk_path_unref);
-  graphene_rect_init (&self->bounds, 0, 0, 0, 0);
-  if (path)
-    {
-      GskStroke *stroke;
-
-      self->path = gsk_path_ref (path);
-      stroke = gsk_stroke_new (2.0);
-      gsk_path_get_stroke_bounds (path, stroke, &self->bounds);
-      gsk_stroke_free (stroke);
-    }
-
-  gtk_widget_queue_resize (GTK_WIDGET (self));
-
-  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_PATH]);
-}
-
-static void
-gtk_path_sweep_set_property (GObject      *object,
-                            guint         prop_id,
-                            const GValue *value,
-                            GParamSpec   *pspec)
-
-{
-  GtkPathSweep *self = GTK_PATH_SWEEP (object);
-
-  switch (prop_id)
-    {
-    case PROP_PATH:
-      gtk_path_sweep_set_path (self, g_value_get_boxed (value));
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-gtk_path_sweep_get_property (GObject    *object,
-                            guint       prop_id,
-                            GValue     *value,
-                            GParamSpec *pspec)
-{
-  GtkPathSweep *self = GTK_PATH_SWEEP (object);
-
-  switch (prop_id)
-    {
-    case PROP_PATH:
-      g_value_set_boxed (value, self->path);
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-gtk_path_sweep_dispose (GObject *object)
-{
-  GtkPathSweep *self = GTK_PATH_SWEEP (object);
-
-  g_clear_pointer (&self->path, gsk_path_unref);
-
-  G_OBJECT_CLASS (gtk_path_sweep_parent_class)->dispose (object);
-}
-
-static void
-gtk_path_sweep_class_init (GtkPathSweepClass *klass)
-{
-  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
-  GObjectClass *object_class = G_OBJECT_CLASS (klass);
-
-  object_class->dispose = gtk_path_sweep_dispose;
-  object_class->set_property = gtk_path_sweep_set_property;
-  object_class->get_property = gtk_path_sweep_get_property;
-
-  widget_class->snapshot = gtk_path_sweep_snapshot;
-  widget_class->measure = gtk_path_sweep_measure;
-
-  properties[PROP_PATH] =
-    g_param_spec_boxed ("path", NULL, NULL,
-                        GSK_TYPE_PATH,
-                        G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
-
-  g_object_class_install_properties (object_class, N_PROPS, properties);
-}
-
-static void
-motion_cb (GtkEventControllerMotion *controller,
-           double                    x,
-           double                    y,
-           gpointer                  data)
-{
-  GtkPathSweep *self = data;
-
-  self->y_pos = y;
-  gtk_widget_queue_draw (GTK_WIDGET (self));
-}
-
-static void
-enter_cb (GtkEventControllerMotion *controller,
-          double                    x,
-          double                    y,
-          gpointer                  data)
-{
-  GtkPathSweep *self = data;
-
-  self->in = TRUE;
-  self->y_pos = y;
-  gtk_widget_queue_draw (GTK_WIDGET (self));
-}
-
-static void
-leave_cb (GtkEventControllerMotion *controller,
-          gpointer                  data)
-{
-  GtkPathSweep *self = data;
-
-  self->in = FALSE;
-  gtk_widget_queue_draw (GTK_WIDGET (self));
-}
-
-static void
-gtk_path_sweep_init (GtkPathSweep *self)
-{
-  GtkEventController *controller;
-
-  /* Data taken from
-   * https://commons.wikimedia.org/wiki/Maps_of_the_world#/media/File:Simplified_blank_world_map_without_Antartica_(no_borders).svg
-   */
-  GBytes *data = g_resources_lookup_data ("/path_sweep/path_world.txt", 0, NULL);
-  GskPath *path = gsk_path_parse (g_bytes_get_data (data, NULL));
-  g_bytes_unref (data);
-  gtk_path_sweep_set_path (self, path);
-  gsk_path_unref (path);
-
-  controller = gtk_event_controller_motion_new ();
-  g_signal_connect (controller, "motion", G_CALLBACK (motion_cb), self);
-  g_signal_connect (controller, "enter", G_CALLBACK (enter_cb), self);
-  g_signal_connect (controller, "leave", G_CALLBACK (leave_cb), self);
-  gtk_widget_add_controller (GTK_WIDGET (self), controller);
-}
-
-GtkWidget *
-gtk_path_sweep_new (void)
-{
-  GtkPathSweep *self;
-
-  self = g_object_new (GTK_TYPE_PATH_SWEEP, NULL);
-
-  return GTK_WIDGET (self);
-}
-
-GtkWidget *
-do_path_sweep (GtkWidget *do_widget)
-{
-  static GtkWidget *window = NULL;
-
-  if (!window)
-    {
-      GtkBuilder *builder;
-
-      g_type_ensure (GTK_TYPE_PATH_SWEEP);
-
-      builder = gtk_builder_new_from_resource ("/path_sweep/path_sweep.ui");
-      window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
-      gtk_window_set_display (GTK_WINDOW (window),
-                              gtk_widget_get_display (do_widget));
-      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *) &window);
-      g_object_unref (builder);
-    }
-
-  if (!gtk_widget_get_visible (window))
-    gtk_window_present (GTK_WINDOW (window));
-  else
-    gtk_window_destroy (GTK_WINDOW (window));
-
-  return window;
-}

demos/gtk-demo/path_sweep.ui

@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<interface>
-  <object class="GtkWindow" id="window">
-    <property name="title" translatable="yes">World Map</property>
-    <property name="child">
-      <object class="GtkBox">
-        <property name="orientation">vertical</property>
-        <child>
-          <object class="GtkPathSweep" id="view">
-            <property name="hexpand">true</property>
-            <property name="vexpand">true</property>
-          </object>
-        </child>
-      </object>
-    </property>
-  </object>
-</interface>

demos/gtk-demo/path_text.c

@@ -1,9 +1,6 @@
 /* Path/Text
  *
- * This demo shows how to use GskPath to transform a path along another path.
- *
- * It also demonstrates that paths can be filled with more interesting
- * content than just plain colors.
+ * This demo shows how to use GskPath to animate a path along another path.
  */
 
 #include <glib/gi18n.h>
@@ -31,8 +28,10 @@ struct _GtkPathWidget
   graphene_point_t points[4];
 
   guint active_point;
+  float line_closest;
 
   GskPath *line_path;
+  GskPathMeasure *line_measure;
   GskPath *text_path;
 
   GdkPaintable *background;
@@ -95,8 +94,8 @@ gtk_path_transform_point (GskPathMeasure         *measure,
     {
       GskPath *path = gsk_path_measure_get_path (measure);
 
-      gsk_path_point_get_position (&point, path, res);
-      gsk_path_point_get_tangent (&point, path, GSK_PATH_TO_END, &tangent);
+      gsk_path_point_get_position (path, &point, res);
+      gsk_path_point_get_tangent (path, &point, GSK_PATH_END, &tangent);
 
       res->x -= (pt->y + offset->y) * scale * graphene_vec2_get_y (&tangent);
       res->y += (pt->y + offset->y) * scale * graphene_vec2_get_x (&tangent);
@@ -107,7 +106,6 @@ static gboolean
 gtk_path_transform_op (GskPathOperation        op,
                        const graphene_point_t *pts,
                        gsize                   n_pts,
-                       float                   weight,
                        gpointer                data)
 {
   GtkPathTransform *transform = data;
@@ -149,15 +147,6 @@ gtk_path_transform_op (GskPathOperation        op,
       }
       break;
 
-    case GSK_PATH_CONIC:
-      {
-        graphene_point_t res[2];
-        gtk_path_transform_point (transform->measure, &pts[1], &transform->offset, transform->scale, &res[0]);
-        gtk_path_transform_point (transform->measure, &pts[3], &transform->offset, transform->scale, &res[1]);
-        gsk_path_builder_conic_to (transform->builder, res[0].x, res[0].y, res[1].x, res[1].y, weight);
-      }
-      break;
-
     case GSK_PATH_CLOSE:
       gsk_path_builder_close (transform->builder);
       break;
@@ -171,11 +160,10 @@ gtk_path_transform_op (GskPathOperation        op,
 }
 
 static GskPath *
-gtk_path_transform (GskPath                *line_path,
+gtk_path_transform (GskPathMeasure         *measure,
                     GskPath                *path,
                     const graphene_point_t *offset)
 {
-  GskPathMeasure *measure = gsk_path_measure_new (line_path);
   GtkPathTransform transform = { measure, gsk_path_builder_new (), *offset };
   graphene_rect_t bounds;
 
@@ -187,8 +175,6 @@ gtk_path_transform (GskPath                *line_path,
 
   gsk_path_foreach (path, -1, gtk_path_transform_op, &transform);
 
-  gsk_path_measure_unref (measure);
-
   return gsk_path_builder_free_to_path (transform.builder);
 }
 
@@ -204,6 +190,7 @@ gtk_path_widget_clear_paths (GtkPathWidget *self)
   gtk_path_widget_clear_text_path (self);
 
   g_clear_pointer (&self->line_path, gsk_path_unref);
+  g_clear_pointer (&self->line_measure, gsk_path_measure_unref);
 }
 
 static void
@@ -214,8 +201,11 @@ gtk_path_widget_create_text_path (GtkPathWidget *self)
 
   gtk_path_widget_clear_text_path (self);
 
+  if (self->line_measure == NULL)
+    return;
+
   path = create_path_from_text (GTK_WIDGET (self), self->text, &offset);
-  self->text_path = gtk_path_transform (self->line_path, path, &offset);
+  self->text_path = gtk_path_transform (self->line_measure, path, &offset);
 
   gsk_path_unref (path);
 }
@@ -241,6 +231,8 @@ gtk_path_widget_create_paths (GtkPathWidget *self)
                              self->points[3].x * width, self->points[3].y * height);
   self->line_path = gsk_path_builder_free_to_path (builder);
 
+  self->line_measure = gsk_path_measure_new (self->line_path);
+
   gtk_path_widget_create_text_path (self);
 }
 
@@ -322,6 +314,27 @@ gtk_path_widget_snapshot (GtkWidget   *widget,
 
       gsk_path_unref (path);
     }
+
+  if (self->line_closest >= 0)
+    {
+      GskPathBuilder *builder;
+      GskPathPoint point;
+      graphene_point_t closest;
+
+      builder = gsk_path_builder_new ();
+      if (gsk_path_measure_get_point (self->line_measure, self->line_closest, &point))
+        {
+          gsk_path_point_get_position (self->line_path, &point, &closest);
+          gsk_path_builder_add_circle (builder, &closest, POINT_SIZE);
+          path = gsk_path_builder_free_to_path (builder);
+
+          gtk_snapshot_push_fill (snapshot, path, GSK_FILL_RULE_WINDING);
+          gtk_snapshot_append_color (snapshot, &(GdkRGBA) { 0, 0, 1, 1 }, &GRAPHENE_RECT_INIT (0, 0, width, height));
+          gtk_snapshot_pop (snapshot);
+
+          gsk_path_unref (path);
+        }
+    }
 }
 
 static void
@@ -501,13 +514,16 @@ pointer_motion (GtkEventControllerMotion *controller,
                 GtkPathWidget            *self)
 {
   GskPathPoint point;
+  graphene_point_t pos;
 
-  if (gsk_path_get_closest_point (self->line_path,
+  if (gsk_path_get_closest_point (gsk_path_measure_get_path (self->line_measure),
                                   &GRAPHENE_POINT_INIT (x, y),
                                   INFINITY,
-                                  &point,
-                                  NULL))
+                                  &point))
     {
+      gsk_path_point_get_position (self->line_path, &point, &pos);
+      self->line_closest = graphene_point_distance (&pos, &GRAPHENE_POINT_INIT (x, y), NULL, NULL);
+    
       gtk_widget_queue_draw (GTK_WIDGET (self));
     }
 }
@@ -516,6 +532,8 @@ static void
 pointer_leave (GtkEventControllerMotion *controller,
                GtkPathWidget            *self)
 {
+  self->line_closest = -1;
+
   gtk_widget_queue_draw (GTK_WIDGET (self));
 }
 
@@ -536,6 +554,8 @@ gtk_path_widget_init (GtkPathWidget *self)
   g_signal_connect (controller, "leave", G_CALLBACK (pointer_leave), self);
   gtk_widget_add_controller (GTK_WIDGET (self), controller);
 
+  self->line_closest = -1;
+
   self->points[0] = GRAPHENE_POINT_INIT (0.1, 0.9);
   self->points[1] = GRAPHENE_POINT_INIT (0.3, 0.1);
   self->points[2] = GRAPHENE_POINT_INIT (0.7, 0.1);

demos/gtk-demo/path_walk.c

@@ -1,373 +0,0 @@
-/* Path/Walk
- *
- * This demo draws a world map and shows how to animate objects along a GskPath.
- *
- * The world map that is used here is a path with 211 lines and 1569 cubic
- * Bėzier segments in 121 contours.
- */
-
-#include <glib/gi18n.h>
-#include <gtk/gtk.h>
-
-#define GTK_TYPE_PATH_WALK (gtk_path_walk_get_type ())
-G_DECLARE_FINAL_TYPE (GtkPathWalk, gtk_path_walk, GTK, PATH_WALK, GtkWidget)
-
-#define POINT_SIZE 8
-
-enum {
-  PROP_0,
-  PROP_N_POINTS,
-  PROP_PATH,
-  N_PROPS
-};
-
-struct _GtkPathWalk
-{
-  GtkWidget parent_instance;
-
-  GskPath *path;
-  GskPathMeasure *measure;
-  graphene_rect_t bounds;
-  GskPath *arrow_path;
-  guint n_points;
-};
-
-struct _GtkPathWalkClass
-{
-  GtkWidgetClass parent_class;
-};
-
-static GParamSpec *properties[N_PROPS] = { NULL, };
-
-G_DEFINE_TYPE (GtkPathWalk, gtk_path_walk, GTK_TYPE_WIDGET)
-
-static void
-rgba_init_from_hsla (GdkRGBA *rgba,
-                     float    hue,
-                     float    saturation,
-                     float    lightness,
-                     float    alpha)
-{
-  float m1, m2;
-
-  if (lightness <= 0.5)
-    m2 = lightness * (1 + saturation);
-  else
-    m2 = lightness + saturation - lightness * saturation;
-  m1 = 2 * lightness - m2;
-
-  rgba->alpha = alpha;
-
-  if (saturation == 0)
-    {
-      rgba->red = lightness;
-      rgba->green = lightness;
-      rgba->blue = lightness;
-    }
-  else
-    {
-      hue = hue + 120;
-      while (hue > 360)
-        hue -= 360;
-      while (hue < 0)
-        hue += 360;
-
-      if (hue < 60)
-        rgba->red = m1 + (m2 - m1) * hue / 60;
-      else if (hue < 180)
-        rgba->red = m2;
-      else if (hue < 240)
-        rgba->red = m1 + (m2 - m1) * (240 - hue) / 60;
-      else
-        rgba->red = m1;
-
-      hue -= 120;
-      if (hue < 0)
-        hue += 360;
-
-      if (hue < 60)
-        rgba->green = m1 + (m2 - m1) * hue / 60;
-      else if (hue < 180)
-        rgba->green = m2;
-      else if (hue < 240)
-        rgba->green = m1 + (m2 - m1) * (240 - hue) / 60;
-      else
-        rgba->green = m1;
-
-      hue -= 120;
-      if (hue < 0)
-        hue += 360;
-
-      if (hue < 60)
-        rgba->blue = m1 + (m2 - m1) * hue / 60;
-      else if (hue < 180)
-        rgba->blue = m2;
-      else if (hue < 240)
-        rgba->blue = m1 + (m2 - m1) * (240 - hue) / 60;
-      else
-        rgba->blue = m1;
-    }
-}
-
-static void
-gtk_path_walk_snapshot (GtkWidget   *widget,
-                        GtkSnapshot *snapshot)
-{
-  GtkPathWalk *self = GTK_PATH_WALK (widget);
-  double width = gtk_widget_get_width (widget);
-  double height = gtk_widget_get_height (widget);
-  float length, progress;
-  GskStroke *stroke;
-  guint i;
-
-  if (self->path == NULL)
-    return;
-
-  gtk_snapshot_save (snapshot);
-
-  stroke = gsk_stroke_new (2.0);
-  gtk_snapshot_push_stroke (snapshot, self->path, stroke);
-  gtk_snapshot_append_color (snapshot, &(GdkRGBA) { 0, 0, 0, 1 }, &GRAPHENE_RECT_INIT (0, 0, width, height));
-  gtk_snapshot_pop (snapshot);
-  gsk_stroke_free (stroke);
-
-  length = gsk_path_measure_get_length (self->measure);
-  progress = 25.f * gdk_frame_clock_get_frame_time (gtk_widget_get_frame_clock (widget)) / G_USEC_PER_SEC;
-
-  stroke = gsk_stroke_new (1.0);
-  for (i = 0; i < self->n_points; i++)
-    {
-      GskPathPoint point;
-      graphene_point_t position;
-      float angle;
-      GdkRGBA color;
-      float distance;
-
-      distance = i * length / self->n_points;
-      distance = fmod (distance + progress, length);
-
-      gsk_path_measure_get_point (self->measure, distance, &point);
-      gsk_path_point_get_position (&point, self->path, &position);
-      angle = gsk_path_point_get_rotation (&point, self->path, GSK_PATH_FROM_START);
-      rgba_init_from_hsla (&color, 360.f * i / self->n_points, 1, 0.5, 1);
-
-      gtk_snapshot_save (snapshot);
-      gtk_snapshot_translate (snapshot, &position);
-      gtk_snapshot_rotate (snapshot, angle);
-      gtk_snapshot_append_fill (snapshot, self->arrow_path, GSK_FILL_RULE_EVEN_ODD, &color);
-      gtk_snapshot_append_stroke (snapshot, self->arrow_path, stroke, &(GdkRGBA) { 0, 0, 0, 1 });
-      gtk_snapshot_restore (snapshot);
-    }
-
-  gsk_stroke_free (stroke);
-  gtk_snapshot_restore (snapshot);
-}
-
-static void
-gtk_path_walk_measure (GtkWidget      *widget,
-                       GtkOrientation  orientation,
-                       int             for_size,
-                       int            *minimum,
-                       int            *natural,
-                       int            *minimum_baseline,
-                       int            *natural_baseline)
-{
-  GtkPathWalk *self = GTK_PATH_WALK (widget);
-
-  if (orientation == GTK_ORIENTATION_HORIZONTAL)
-    *minimum = *natural = (int) ceilf (self->bounds.size.width);
-  else
-    *minimum = *natural = (int) ceilf (self->bounds.size.height);
-}
-
-static void
-gtk_path_walk_set_n_points (GtkPathWalk *self,
-                            gsize        n_points)
-{
-  if (self->n_points == n_points)
-    return;
-
-  self->n_points = n_points;
-
-  gtk_widget_queue_draw (GTK_WIDGET (self));
-
-  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_N_POINTS]);
-}
-
-static void
-gtk_path_walk_set_path (GtkPathWalk *self,
-                        GskPath     *path)
-{
-  if (self->path == path)
-    return;
-
-  g_clear_pointer (&self->path, gsk_path_unref);
-  graphene_rect_init (&self->bounds, 0, 0, 0, 0);
-  if (path)
-    {
-      GskStroke *stroke;
-
-      self->path = gsk_path_ref (path);
-      stroke = gsk_stroke_new (2.0);
-      gsk_path_get_stroke_bounds (path, stroke, &self->bounds);
-      gsk_stroke_free (stroke);
-      self->measure = gsk_path_measure_new (self->path);
-    }
-
-  gtk_widget_queue_resize (GTK_WIDGET (self));
-
-  g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_PATH]);
-}
-
-static void
-gtk_path_walk_set_property (GObject      *object,
-                            guint         prop_id,
-                            const GValue *value,
-                            GParamSpec   *pspec)
-
-{
-  GtkPathWalk *self = GTK_PATH_WALK (object);
-
-  switch (prop_id)
-    {
-    case PROP_N_POINTS:
-      gtk_path_walk_set_n_points (self, g_value_get_uint (value));
-      break;
-
-    case PROP_PATH:
-      gtk_path_walk_set_path (self, g_value_get_boxed (value));
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-gtk_path_walk_get_property (GObject    *object,
-                            guint       prop_id,
-                            GValue     *value,
-                            GParamSpec *pspec)
-{
-  GtkPathWalk *self = GTK_PATH_WALK (object);
-
-  switch (prop_id)
-    {
-    case PROP_N_POINTS:
-      g_value_set_uint (value, self->n_points);
-      break;
-
-    case PROP_PATH:
-      g_value_set_boxed (value, self->path);
-      break;
-
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-gtk_path_walk_dispose (GObject *object)
-{
-  GtkPathWalk *self = GTK_PATH_WALK (object);
-
-  g_clear_pointer (&self->path, gsk_path_unref);
-  g_clear_pointer (&self->measure, gsk_path_measure_unref);
-  g_clear_pointer (&self->arrow_path, gsk_path_unref);
-
-  G_OBJECT_CLASS (gtk_path_walk_parent_class)->dispose (object);
-}
-
-static void
-gtk_path_walk_class_init (GtkPathWalkClass *klass)
-{
-  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
-  GObjectClass *object_class = G_OBJECT_CLASS (klass);
-
-  object_class->dispose = gtk_path_walk_dispose;
-  object_class->set_property = gtk_path_walk_set_property;
-  object_class->get_property = gtk_path_walk_get_property;
-
-  widget_class->snapshot = gtk_path_walk_snapshot;
-  widget_class->measure = gtk_path_walk_measure;
-
-  properties[PROP_N_POINTS] =
-    g_param_spec_uint ("n-points",
-                       NULL, NULL,
-                       1, G_MAXUINT,
-                       500,
-                       G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
-
-  properties[PROP_PATH] =
-    g_param_spec_boxed ("path",
-                        NULL, NULL,
-                        GSK_TYPE_PATH,
-                        G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
-
-  g_object_class_install_properties (object_class, N_PROPS, properties);
-}
-
-static gboolean
-tick_tick_tick (GtkWidget     *self,
-                GdkFrameClock *frame_clock,
-                gpointer       unused)
-{
-  gtk_widget_queue_draw (GTK_WIDGET (self));
-
-  return G_SOURCE_CONTINUE;
-}
-
-static void
-gtk_path_walk_init (GtkPathWalk *self)
-{
-  /* Data taken from
-   * https://commons.wikimedia.org/wiki/Maps_of_the_world#/media/File:Simplified_blank_world_map_without_Antartica_(no_borders).svg
-   */
-  GBytes *data = g_resources_lookup_data ("/path_walk/path_world.txt", 0, NULL);
-  GskPath *path = gsk_path_parse (g_bytes_get_data (data, NULL));
-  g_bytes_unref (data);
-  gtk_path_walk_set_path (self, path);
-  gsk_path_unref (path);
-  self->arrow_path = gsk_path_parse ("M 5 0 L 0 -5. 0 -2, -5 -2, -5 2, 0 2, 0 5 Z");
-  self->n_points = 500;
-  gtk_widget_add_tick_callback (GTK_WIDGET (self), tick_tick_tick, NULL, NULL);
-}
-
-GtkWidget *
-gtk_path_walk_new (void)
-{
-  GtkPathWalk *self;
-
-  self = g_object_new (GTK_TYPE_PATH_WALK, NULL);
-
-  return GTK_WIDGET (self);
-}
-
-GtkWidget *
-do_path_walk (GtkWidget *do_widget)
-{
-  static GtkWidget *window = NULL;
-
-  if (!window)
-    {
-      GtkBuilder *builder;
-
-      g_type_ensure (GTK_TYPE_PATH_WALK);
-
-      builder = gtk_builder_new_from_resource ("/path_walk/path_walk.ui");
-      window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
-      gtk_window_set_display (GTK_WINDOW (window),
-                              gtk_widget_get_display (do_widget));
-      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *) &window);
-      g_object_unref (builder);
-    }
-
-  if (!gtk_widget_get_visible (window))
-    gtk_window_present (GTK_WINDOW (window));
-  else
-    gtk_window_destroy (GTK_WINDOW (window));
-
-  return window;
-}

demos/gtk-demo/path_walk.ui

@@ -1,35 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<interface>
-  <object class="GtkWindow" id="window">
-    <property name="title" translatable="yes">World Map</property>
-    <property name="titlebar">
-      <object class="GtkHeaderBar">
-        <child type="end">
-          <object class="GtkSpinButton">
-            <property name="adjustment">
-              <object class="GtkAdjustment" id="adjustment">
-                <property name="lower">0</property>
-                <property name="upper">5000</property>
-                <property name="value">500</property>
-                <property name="step-increment">1</property>
-                <property name="page-increment">10</property>
-              </object>
-            </property>
-          </object>
-        </child>
-      </object>
-    </property>
-    <property name="child">
-      <object class="GtkBox">
-        <property name="orientation">vertical</property>
-        <child>
-          <object class="GtkPathWalk" id="view">
-            <property name="n-points" bind-source="adjustment" bind-property="value"/>
-            <property name="hexpand">true</property>
-            <property name="vexpand">true</property>
-          </object>
-        </child>
-      </object>
-    </property>
-  </object>
-</interface>

demos/node-editor/node-format.md

@@ -147,19 +147,6 @@ Creates a node like `gsk_cross_fade_node_new()` with the given properties.
 
 Creates a node like `gsk_debug_node_new()` with the given properties.
 
-### fill
-
-| property  | syntax          | default                | printed     |
-| --------- | --------------- | ---------------------- | ----------- |
-| child     | `<node>`        | *see below*            | always      |
-| path      | `<string>`      | ""                     | always      |
-| fill-rule | `<fill-rule>`   | winding                | always      |
-
-Creates a node like `gsk_fill_node_new()` with the given properties.
-
-The default child node is the default color node, but created with the
-bounds of the path.
-
 ### glshader
 
 | property   | syntax             | default                | printed     |
@@ -302,24 +289,6 @@ Creates a node like `gsk_rounded_clip_node_new()` with the given properties.
 
 Creates a node like `gsk_shadow_node_new()` with the given properties.
 
-### stroke
-
-| property    | syntax             | default           | printed     |
-| ----------- | ------------------ | ----------------- | ----------- |
-| child       | `<node>`           | *see below*       | always      |
-| path        | `<string>`         | ""                | always      |
-| line-width  | `<number>`         | 0                 | non-default |
-| line-cap    | `<line-cap>`       | butt              | always      |
-| line-join   | `<line-join>`      | miter             | always      |
-| miter-limit | `<number>`         | 4                 | non-default |
-| dash        | `<number>{+}|none` | none              | non-default |
-| dash-offset | `<number>`         | 0                 | non-default |
-
-Creates a node like `gsk_stroke_node_new()` with the given properties.
-
-The default child node is the default color node, but created with the
-stroke bounds of the path.
-
 ### text
 
 | property | syntax           | default                | printed     |

docs/reference/gsk/gsk4.toml.in

@@ -32,34 +32,7 @@ show_class_hierarchy = true
 base_url = "https://gitlab.gnome.org/GNOME/gtk/-/blob/main/"
 
 [extra]
-content_files = [
-  "paths.md",
-]
 content_images = [
   "gtk-logo.svg",
-  "images/arc-dark.png",
-  "images/arc-light.png",
-  "images/caps-dark.png",
-  "images/caps-light.png",
-  "images/conic-light.png",
-  "images/conic-dark.png",
-  "images/cubic-dark.png",
-  "images/cubic-light.png",
-  "images/curvature-dark.png",
-  "images/curvature-light.png",
-  "images/directions-dark.png",
-  "images/directions-light.png",
-  "images/fill-even-odd.png",
-  "images/fill-winding.png",
-  "images/join-dark.png",
-  "images/join-light.png",
-  "images/line-dark.png",
-  "images/line-light.png",
-  "images/path-dark.png",
-  "images/path-light.png",
-  "images/quad-dark.png",
-  "images/quad-light.png",
-  "images/stroke-miter.png",
-  "images/stroke-round.png",
 ]
 urlmap_file = "urlmap.js"

docs/reference/gsk/images/arc.svg

@@ -1,92 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<!-- Created with Inkscape (http://www.inkscape.org/) -->
-
-<svg
-   width="210mm"
-   height="297mm"
-   viewBox="0 0 210 297"
-   version="1.1"
-   id="svg1"
-   inkscape:version="1.3 (0e150ed6c4, 2023-07-21)"
-   sodipodi:docname="arcto.svg"
-   inkscape:export-filename="cubic-light.png"
-   inkscape:export-xdpi="96"
-   inkscape:export-ydpi="96"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
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