Includes fixing all callers to use the cairo region API instead. This is
usually just replacing the function names, the only difference is
gdk_region_get_rectangles() being replaced by
cairo_region_num_rectangles() and cairo_region_get_rectangle() which
required a bit more work.
https://bugzilla.gnome.org/show_bug.cgi?id=613284
On X11 we receive enter notify and motion notify events for a window
regardless of its focus state. On Mac OS X this is not the case. This
commit improves the semantics to overcome this difference. It improves
on my earlier patch that sent a motion notify event when a window became
main.
Instead of sending a motion notify when a window becomes main, we now
send one when a window becomes key, which comes closest to a window
getting focus in X11. This motion notify is needed because Mac OS X does
not send motion events when an application is inactive (none of its
windows have focus), these events are sent in X11. This dummy motion
notify event (with current coordinates of the mouse cursor) allows an
application to get its prelight and other state right when it gets focus
and thus user attention.
Another change is to send an enter notify event when updating the
tracking rectangle of a GdkQuartView and the mouse cursor is currently in
this rectangle. This rectangle is at least updated on window creation.
This enter notify event is important for the case where a new window
appears right below the mouse cursor. The window has to receive an enter
notify event for the subsequent events to be processed correctly. Mac
OS X does not send one in this case, so we generate it ourselves.
Both of these synthesized events have to go through
_gdk_windowing_got_event() for updating statekeeping, etc.
append_event() has a boolean flag now to make this convenient.
We have to do this, especially after the screen containing the menubar
has changed. Such more larger changes in monitor geometry will cause
changes to how monitors are laid out in the root window. The position
coordinates of the windows will have to be updated to reflect their
position in the new layout.
The root window contains all the monitors attached to a Mac. The
coordinate transformation now both translates the x and y coordinate,
translating it from the Cocoa monitor coordinate space to the GDK
coordinate space. How monitors are laid out in the root window differs
between Cocoa and GDK, which is why it is important to translate based
on the root window to get multi monitor setups to work properly.
We have replaced the old y coordinate transformation function with
new functions that translate both the x and y coordinate.
When creating new toplevels, we have to determine the Cocoa screen on
which the toplevel should appear and translate the coordinates according
to that screen.
This change also fixes event handling in case there is a monitor left
of the screen containing the menu bar. In such a case all coordinates
on the left monitor are negative. Event handling broke, because of
_gdk_quartz_window_find_child() checking bounds. Now that coordinates
are always properly translated to GDK coordinate space, in which negative
coordinates do never occur, the checks here will work properly.
Make the quartz backend support the new queued translations. We do this
by keeping our own copy of the region that has been set to need display.
Using this region we can intersect by the given area, translate this and also
set needs display for the resulting area.
The X11 queue_translation operation uses NextRequest to get the serial
of the XCopyArea operation where the translation should end. However,
if the gc passed to gdk_draw_drawable has a non-flushed clip region
(which it commonly has now for the window clipping) then the next
operation will be the GC flush, not the XCopyArea.
To handle this right we now pass in the GC to be used to
queue_translation and ensure that it is flushed before calling
NextRequest().
Use the same code path to get a CGContext for both gdk_draw_* and
gdk_cairo_create and make sure we unlockFocus in both cases. This
fixes the broken rendering in GtkRuler. Also use an average of flush
intervals when checking whether we can flush or not, since otherwise
we get too sensitive and block almost all explicit flushes that are
caused by mouse movements for example.
