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By making window caches refcounted. This fixes problems with leaking
drag contexts, as experienced in
https://bugzilla.gnome.org/show_bug.cgi?id=637691
and
https://bugzilla.gnome.org/show_bug.cgi?id=144324

Based on a patch by drago01@gmail.com

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>

Also rename all the macros etc.

These functions were essentially just calling setlocale anyway.
The X11 version was also setting a gdk_use_mb variable that
is not used anywhere.

Moving the direct-access redefinitions of various macros
to gdkprivate-x11.h and use that header throughout in x11/.

Also remove a workaround for a long-fixed X server bug.

The X11 backend exports a number of symbols which are _-prefixed
(so don't become part of the gdk api), but are not named in a
way to prevent accidental clashes between backends.

The one API change here is that the gdk_xid_table functions
have been removed - they did not server an purpose, since the
xid table only stores windows anyway, and we already have a
lookup-by-xid function for windows.

At the same time, make GDK_IS_DISPLAY_X11 available in gdkx.h, and
add some exemplaric ifdefs to GTK+ code.

At the same time, move some more class and instance structs
out of public headers.

Otherwise we run into warnings from xdnd_status_filter

Nonstatic backend-specific functions need an x11 in their name.

This commit hides GdkDragContext and GdkDragContextClass, adds
vfuncs for most drag context functionality, and turns the X11 DND
implementation into GdkDragContextX11. We also add vfuncs to
GdkDisplay for gdk_drag_get_protocol and to GdkWindow for
gdk_drag_begin, and implemenet them for X11.
Other backends need similar treatment and are broken now.

We don't want to expose depth anymore. If you need it, query the visual.

Use GDK_WINDOW_XID() instead.

THis was done using sed, so there might be issues resulting to that.
Feel free to fix.

GDK_WINDOW_XID() instead of GDK_DRAWABLE_XID()
GDK_WINDOW_XDISPLAY() instead of GDK_DRAWABLE_XDISPLAY()

Mostly missing (transfer none).

Try to do inclusions in the same sequence, more or less.

Use gdk_device_manager_get_client_pointer() instead

Remove syncs in front of gdk_error_trap_pop() calls, and convert
gdk_error_trap_pop() calls to gdk_error_trap_pop_ignored() in gdk.

The goi scanner warns about these nowadays.

Fixes build if it isn't available. Bug #629748.

Add the composite overlay window to the cache, as this can be a reasonable Xdnd proxy as well.

This is only done when the screen is composited in order to avoid mapping
the COW. We assume that the CM is using the COW (which is true for pretty
much any CM currently in use).

https://bugzilla.gnome.org/show_bug.cgi?id=601731

https://bugzilla.gnome.org/show_bug.cgi?id=623845

https://bugzilla.gnome.org/show_bug.cgi?id=613284

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

We now exit early from gdk_window_register_dnd() to avoid crashing if the
window type is GDK_WINDOW_OFFSCREEN and does not support dnd operations.
This makes it possible to use any dnd-enabled widgets, such as GtkEntry,
within a GtkOffscreenWindow.

Use examples/gdk to store documentation code examples.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=618498Signed-off-by: Javier Jardón <jjardon@gnome.org>

Otherwise, inclusion of shape.h triggers an unknown type error
for Region, and compile fails, at least in Solaris.

Reported by Philip Brown here:
https://bugzilla.gnome.org/show_bug.cgi?id=615028

Mention that targets is a list of atoms. Bug 611317.

This was reported as a problem in bug 609952.