This signal was not being emitted on macOS, a bug introduced in 941f3c38.
`emit_monitors_changed` was never set to TRUE, so the signal was never
emitted. `emit_monitors_changed` has now been removed, because its
functionality was moved to GdkDisplay.
In addition, kCGDisplayDesktopShapeChangedFlag was removed from the list of
flags that indicate a new/reconfigured monitor, because monitor removals also
include this flag, which caused removed monitors to not be removed from
GdkDisplay.
Fixes#2004.
Current problems:
* other widgets in a GL-painted window are low-resolution on Retina
display
* something wrong with paint updates; gdkgears demo only updates every
couple of seconds but reports ~30fps
See: #517
Transform GdkQuartzMonitor geometry to Gdk coordinate system.
Move computation of Display geometry from GdkQuartzScreen to
GdkQuartzDisplay and use AppKit coordinates.
Closes https://gitlab.gnome.org/GNOME/gtk/issues/1593
CGDisplayModeGetWidth returns 0 if mode is NULL; that happens if the
CGDisplay is offline or mirroring another monitor and it leads to a
divide-by-zero crash.
Closes: https://gitlab.gnome.org/GNOME/gtk/issues/1565
Handling more flags, handling them correctly, and emitting the requisite
signals.
Change screen layout to use CGGetActiveDisplayList instead of NSScreens,
eliminating the latency between updating screens and recomputing the
root window.
Moving the initialization of the GdkQuartzMonitors to GdkQuartzDisplay from
the now-obsolete GdkQuartzScreen. Use QuartzDisplayServices for
monitor enumeration and to populate the GdkMonitor properties. This is
better aligned with acting on the Quartz Services callbacks for monitor
changes and with Cairo which also uses CoreGraphics for drawing.
gdk_display_list_devices is deprecated and all the backends
implement the same fallback by delegating to the device manager
and caching the list (caching it is needed since the method does
not transfer ownership of the container).
The compat code can be shared among all backends and we can
initialize the list lazily only in the case someone calls the
deprecated method.
https://bugzilla.gnome.org/show_bug.cgi?id=762891
This is left over from an old effort to bundle gtk and its dependencies
into a Mac OS X Framework. The effort was more or less successful but
proved difficult to maintain and impractical to use because gtk programs
don't use the special Framework include syntax.
