This week in GTK+ – 31

In this last week, the master branch of GTK+ has seen 52 commits, with 10254 lines added and 9466 lines removed.

Planning and status
  • Alex Larsson is working on two separate branches to optimize the memory allocation and fragmentation when building the GSK render tree, after profiling the tree building code
  • Timm Bäder is working on a topic branch to switch widgets to be visible by default
  • The GTK+ road map is available on the wiki.
Notable changes

On the master branch:

  • Rui Matos added support in the Wayland backend for the gtk-enable-primary-paste settings key; this requires a newer version of the gsettings-desktop-schemas
  • Matthias Clasen and Alex Larsson refactored some of the GSK,  GtkWidget, and CSS internals to avoid excessive type casting and type checking after profiling the rendering code
  • Matthias added a “system” tab to the GtkAboutDialog widget, for free-form, system-related information
  • Matthias also updated the porting documentation for -gtk-icon-filter
  • Benjamin Otte changed the X11 backend to always call XInitThreads() unconditionally, in order to safely use the Vulkan rendering API; this should be safe, but testing is encouraged
  • Benjamin updated the GtkSnapshot API to ensure that render nodes are available only after the snapshot is complete
  • Benjamin also fixed the handling of CSS images that have no explicit size but should be scaled according to their aspect ratio
  • Timm Bäder added a revealed property to the GtkInfoBar widget and ported the GtkActionBar code to use it

On the gtk-3-22 stable branch:

  • Ruslan Izhbulatov worked on fixing various cases of keyboard handling under Windows, including interaction with AeroSnap; Ruslan also fixed bug 165385, which was going to be 12 years old in 10 days
  • Carlos Garnacho changed the EGL handling inside the Wayland backend to disable swap interval, as the compositor is in charge of timing the rendering
  • Matthias Clasen deprecated additional API that has been removed from the development branch
Bugs fixed
  • 776031 W32: Winkey+down minimizes maximized window instead of restoring it
  • 165385 Win32 keyboard handling still incomplete
  • 769835 On Wayland, application containing GtkGLArea stops responding if it’s not on current workspace
  • 774726 GtkTreeView dnd: gtk_drag_finish remove row when reorder sinse 3.20
  • 769214 keyval field not filled correctly for Pause key
  • 776485 GDK W32: Impossible to restore maximized window via system menu
  • 776604 about dialog: Add a “system” tab
  • 775846 gdk/wayland: Add support for the gtk-enable-primary-paste gsetting
Getting involved

Interested in working on GTK+? Look at the list of bugs for newcomers and join the IRC channel #gtk+ on

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