It now has a hard dependency on libepoxy, and provides gtk-icon-update-cache.
Highlights from release notes:
* Improve client-side decorations without a compositor
* Theming: Fixes for the HighContrast theme
* GtkMenuButton:
- Improve accessible names
* GtkCellRendererPixbuf:
- Always follow state changes, the ::follow-state property
is now ignored. This is necessary to make HighContrast
and symbolic icons remain visible e.g. in selected rows.
* GtkEntry:
- Rework the size allocation code to be less arcane. This
changed the semantics of the get_frame_size() vfunc. GtkEntry
subclasses that override this vfunc may need adjustment.
* Go back to requiring GTK_FRAME_EXTENTS support for CSD,
to fix shadow problems in KDE.
* GtkFileChooser:
- Don't start search too eagerly
- Use fts with tracker
- Make tracker queries more similar to nautilus
* GtkWindow:
- Improve window dragging on header bars
* Printing:
- Make avahi-browsed printers work
- Set printer state correctly
* Wayland
- Support hi-dpi cursors
- Exit cleanly if the compositor goes away
- Don't ignore early maximization/fullscreening
- Make subsurface popovers work under Weston
- DND fixes
* GL
- Port GdkGears example to modern OpenGL
* GtkScrolledWindow
- Avoid 'jumping' when zoom scrolling kicks in
- Make zoom scrolling less easy to trigger
- Make steppers use smooth autoscrolling
- Ensure indicators appear in the correct place
* Input methods can now be turned off entirely, which
can be useful to free up the Ctrl-Shift-u shortcut
* Add some DND support to gtk3-icon-browser
* CSS
- Support animated font weight changes
* GtkPopover:
- has a map/unmap animation now
* GtkListBox now supports models with gtk_list_box_bind_model
* GtkNotebook has a new function to support tab dnd
* GtkSidebar was renamed to GtkStackSidebar to better convey what it does
* GtkFileChooser now has a location column for search
* GdkGLProfile has been removed
* GTK+ types now support the GLib g_autoptr() facility for
automatic cleanup of automatic variables. GTK+ itself does
not use g_autoptr() internally.
* GtkSearchEntry has gained ::next-match, ::previous-match
and ::stop-search signals and a gtk_search_entry_handle_event()
function, which help in providing a richer search experience
and make search entries usable outside of GtkSearchBar.
* GtkFileChooser:
- The search has been reintegrated in the UI, there is now
a toggle button on the header bar to go to search mode,
in addition to the Alt-S shortcut.
- The file chooser button now accepts files by drag-and-drop properly.
* GtkScrolledWindow has gained a new ::edge-reached signal, which
triggers when the edge of the scrollable area is reached.
* CSS:
- Performance improvements
* OpenGL:
- It is now possible to specify the required GL version, as well
as some other options (debug, forward compatible) when creating
a GdkGLContext
- Support for the OpenGL legacy profile has been dropped. Most examples
have been updated, with the exception of gdkgears, which will be fixed
in the next snapshot
- Use shader version 1.50
* GtkTextView
- Allow to customize multi-click behaviors, using the new
::extend-selection signal
- Selection can now be extended by scrolling
- Better behavior and appearance for text selection with touch
* GtkApplication:
- Use app menu fallback with ssh connections
- Provide a mechanism to hide unnecessary app menu items
on OS X, so a single menu file can be used across platforms
* GtkCalendar:
- Show other months in a different color under Adwaita again
- Ensure we always show a bit of the other month on both ends
* GtkScrolledWindow
- Make overlay scrollbars more dynamic
* GtkFileChooser:
- Make bookmark DND insert at the right location
- Make '~' and '/' work in recent mode
- Make Ctrl-L work in recent mode
- Re-integrate search
* CSS:
- Introduce immutable style nodes
- Performance improvements
- Reduced memory consumption
* GtkInspector:
- Add a magnifier for the selected widget
- Show more display information
- Show memory address of objects
* Wayland:
- Use subsurfaces for popovers, so popovers can extend beyond the
window boundaries
- Prefer the Wayland backend over X11 if both are available
* GL:
- Fix interaction with hi-dpi
- Add OpenGL support to the Windows backend
* GtkTextView:
- Font fallback and letter spacing can be controlled with tags now
- Pango markup can be inserted in text buffers
* GtkEntry now has API to grab focus without selecting the contents
* GtkWindow now starts from the focused widget when looking for
actions that are activated by accelerators
* GtkScrolledWindow draws an indication where an edge if hiding
some content that can be scrolled in
* GtkStack has gained GtkNotebook-like focus handling
* Theming:
- Support :not() in CSS
- GtkRange now supports :hover for the whole widget
- The HighContrast theme has caught up with some never GTK+ features
- Avoid excessive shadow redraws
* Build:
- gtk3-update-icon-cache is no longer used at build time, and the
--enable-gtk2-dependency configure option has been removed
- The examples that are used in the documentation can now be built
standalone
* Inspector:
- Allow extension with loadable modules, the first use for this
is gjs-inspector, which adds a JavaScript prompt
- Allow testing cursor theme changes
* GtkPopoverMenu: A GtkPopover subclass that makes it easy
to manually build menu-like popovers which can include
arbitrary controls.
* GtkModelButton: A button widget that is optimized for
use inside popovers with a GAction as 'model'.
* GL support:
- Try harder to pick good visuals
- Rework the way GL rendering is done in GtkGLArea
- Support input events in GtkGLArea
- Use shaders
- The GDK_GL environment variable can be used for debugging
* Inspector:
- Make picking widgets work in Wayland
- Rework search in all pages
- Improve space use
- Support GL information and debug flags
- Shield the inspector window from more debug settings
- Hide empty tabs
* Theming:
- Include the HighContrast theme
- Add borders to menus in non-composited environments
- Load themes from versioned directories like
.../themes/Emerald/gtk-3-14/.
* Wayland:
- Make window opacity work
- Propagate clipboard owner changes
* Mir:
- Improved event handling
- Support cursors
- Enable CSD
- Better monitor support
- Add OpenGL support
* Deprecations:
- gdk_cursor_new
- gdk_device_grab_info_libgtk_only
- gdk_display_open_default_libgtk_only
- gdk_add_option_entries_libgtk_only
- gdk_pre_parse_libgtk_only
* An experimental mir backend has been added.
Use --enable-mir-backend to build it.
* Inspector:
- Show more information
- Use a separate display connection
* Deprecations:
- GtkStyleProperties
* GDK supports rendering windows using OpenGL; currently
this is implemented for X11 and Wayland using libepoxy
* GtkGLArea: A new widget for rendering with OpenGL
* GtkSidebar: A new switcher for GtkStack that looks like
a sidebar
* Better typography: In many places, we now use proper Unicode
characters for dashes, quotes, multiplication signs and the
like, instead of ASCII approximations
* Theming:
- Context menus use the default font instead of inheriting from
the widget they are attached to
- Theming engines are no longer used
- Backdrop style has been fine-tuned to make the difference to
the active window more evident without affecting readability
* Inspector:
- Show nested tree models
- Add a checkbox to disable the warning dialog
- Rearrange the UI to gain space
- Show object counts
* GtkTextView has a monospace property
* GtkPaned has a wide-handle property
* GtkPrintUnixDialog
- Has improved appearance without headerbars
- Better rendering of sheet icons
- No more missing icons
* GtkScrolledWindow
- A new policy, GTK_POLICY_EXTERNAL, which allows scrolling
without showing a scrollbar
- Scroll events can now overshoot as well
- The new signal ::edge-overshot is emitted when the scrolled
window is fully overshot
- Scrollbars will be overlayed as narrow indicators when
there is no mouse
* Deprecations:
- gdk_window_set_static_gravities
- gdk_window_set_composited
- gtk_style_context_get_background_color
- gtk_style_context_get_border_color
- gtk_settings_set_string/long/double_property
- gtk_settings_install_property
Plus many bug fixes and translation updates.
For full details see:
https://git.gnome.org/browse/gtk+/tree/NEWS?id=3.16.3
31a97666d4