One needs to add an explicit dependency between the gir files and the
.la libtool wrapper as this dependency is not added automatically by
Makefile.introspection. Not adding these breaks parallel builds as make
does not wait for the .la to be generated before launching g-ir-scanner.
This commit was created using a script that searched for all docstrings
containing a parameter and the string 'or %NULL'.
Gdk backends and demos excluded as they are not part of a public API
https://bugzilla.gnome.org/show_bug.cgi?id=610474
It turns out that my attempt at handling Super, Hyper and Meta better
is causing problems, mostly because Alt and Meta are commonly colocated
in the modmap, and apps do a check for the Alt modifier regularly.
See e.g bug 607697.
Cursor sizes in DirectFB can be large (4095x4095), limit to 128x128
though, because the x11 backend has this limit, too - for max.
compatibility.
Fixes https://bugzilla.gnome.org/show_bug.cgi?id=609201
Signed-off-by: Javier Jardón <jjardon@gnome.org>
Use G_TYPE_INSTANCE_GET_PRIVATE() instead
In the process, convert to using G_DEFINE_TYPE, too.
Fixes https://bugzilla.gnome.org/show_bug.cgi?id=609195
Signed-off-by: Javier Jardón <jjardon@gnome.org>
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.
If e.g. the right edge of the leftmost rectangle is near MIN_INT, and
the left edge of the rightmost rectangle is large then subtracting these
can lead to an integer overflow, making the resultant "width" falsely
positive, thus returning a very wide result instead of the expected
no-intersection result.
We avoid the overflow by not doing the subtraction unless we know the
result will be positive. There are still risks for overflow if x + width
or y + width is larger than MAXINT, but we won't ever overflow for valid
rects now.
This may fix#607687
We need to do this because otherwise the implicit button grab for this
(native) window will not deliver the button events not selected for
by this window. This is a problem because non-native child windows may
select using a wider event mask, and we can't emulate these events if we
don't get the native events.
Fixes bug #607508
When a cairo surface is requested for direct window access (i.e. not
when double-buffering) we can't really track when the actual drawing happens
as cairo drawing is not virtualized. This means we can't properly flush
any outstanding window moves or implicit paints.
This actually causes problems with e.g. abiword (bug #606009) where they
draw without double-buffering. If you press down it scrolls the window
and then draws the caret, but the caret drawing does not flush the
outstanding move from the scroll, so the caret gets drawn on the wrong
screen.
We fix this by never allowing either implicit paints or outstanding window
moves on impl-windows where any windows related to it has an outstanding
direct cairo surface. Luckily this is not very common so in practice this
doesn't matter much.
It may happen that a window gets destroyed during painting, if so
we should not draw the implicit paint double-buffered pixmap to it
as that will cause a BadDrawable X error.
This fixes bug 600865
These have been introduced in Leopard and default to int and unsigned int.
In 64-bit Snow Leopard they are long and unsigned long. This caused issues
with the getRectsBeingDrawn message which needs a pointer to a NSInteger
(long on 64-bit!) but we passed in an integer. Surprisingly this problem
was visible when compiling with -O0 (segfault), but *not* when compiling
with -O1. Other messages were NSInteger is now needed have also been
adapted.
Since NSInteger and NSUInteger are not available on Tiger, a define
has been added to add typedefs for these when they have not been defined
by the system headers.
This patch changes GDK to add all matching virtual modifiers in
the state field of the key event. The corresponding GTK+ change makes
use of a new GdkKeymap function to map virtual modifiers back to
real modifiers and detect conflicts while doing so.
This should fix bug 603190 and bug 427409.
The Gdk-custom.c file in gir-repository contained a number of
introspection annotations. Merge those into the GDK source files.
Some documentation was moved from the tmpl/ files to accomodate
the addition of annotations.
https://bugzilla.gnome.org/show_bug.cgi?id=592279
Intermediate commit of work in progress on integrating the old code
for OLE2-based generic drag and drop from Arhaeopteryx Software, from
a long time ago in the GTK+ 1.3 timeframe. Does still not work and is
as before not compiled in unless OLE2_DND is defined in
gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES
style dropping of files on GTK+ apps works.)
Related slight refactoring of other code that shouldn't change how it
works. Add more global variables for run-time constants (once
initialized) representing well-known GdkAtoms and registered Windows
clipboard formats, as they with the generic DND code will be needed in
several source files. Some improved debugging output.
They don't need double buffer combination since they have no
client-side children, and creating pixmaps for them is risky
since they could disappear at any time.
May fix bug 598476 and 603652.
It may happen when turning a client side window into a native window
that the window, or some of its children with the same native parent
have extension events enabled, and thus have an input window enabled
for the native parent which needs to change as the window is made
native.
We fix this by temporarily disabling extension events on all the affected
windows while we create the native window, and then reenable them afterwards.
This fixes: https://bugzilla.redhat.com/show_bug.cgi?id=544624
All kinds of lines (lines, segments, arcs, etc) need to take into
account the line properties (width, miter limit, joins, caps, etc)
to get proper damage extents.
This is not really possible to do, but we can make it likely to work
with some ad-hoc estimates.
Fixes bug 603904.
The fix in 786b589d95 for the
"Cannot click buttons more than once without moving the mouse cursor"
did not correctly handle setups with multiple screens in one display.
We need to handle the case where the first XQueryPointer returns
a different root window than the default one.
This fixes bug 597386 (agaion)
We don't really need to filter these out, it was just a leftover
safety check to not override the GDK_POINTER_MOTION_MASK.
Furthermore when we changed behaviour to not always select for native
pointer motion it is actually wrong. We'll still get normal motion
events for the toplevel which we will emulate as button motion on the
child, but the button motion mask will not be inherited by implicit
grabs which makes us not get any motion events during grabs.
This fixes bug 601473
Bypassed with #if 0 because it is an awful hack and not really
acceptable from a privacy point of view for instance. It prevents
Firefox from deleting temporary files containing images being dragged,
so they stay on disk. Bug #561973.
GdkNativeWindow cast is needed in 64-bit Windows so gpointer data
is converted to a (64-bit) native window handle.
GPOINTER_TO_UINT() is used in other platforms.
Either g_type_register_static_simple (used by G_DEFINE_TYPE_EXTENDED)
and G_IMPLEMENT_INTERFACE use automatic variables for GTypeInfo and
GInterfaceInfo structs, while tutorials and source code often use
static variables. This commit consistently adopts the former method.
https://bugzilla.gnome.org/show_bug.cgi?id=600158
When we just invalidate some area from the app we don't need to clear
windows with no exposure mask, because that wouldn't have happened pre-csw
anyway. Additionally we can avoid such clearing for native windows in cases
where the xserver already did the clearing like on exposes or when resizing
toplevels.
This means we don't fully redraw a GtkSocket when it resizes, thus
avoiding flicker in gnome-mplayer as reported in this bug:
https://bugzilla.gnome.org/show_bug.cgi?id=598050
Backends that support native window background setting (and that clears
new window areas to this color/pixmap) should set this to true.
Currently only X11 supports this.
When moving or scrolling a window with native children, there is no
need to expose the areas that are copied by the windowing system
as part of moving/resizing the native windows anyway.
Fixed the prototypes of MyEnhancedXkbTranslateKeyCode() and
translate_keysym() to take a gint* because those functions treat
these arguments as an int, so we get around the need to cast.
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 Quartz port now supports arbitrary multiple monitor layouts instead
of only monitors are were laid out horizontally. This builds on the
reworked coordinate translation done in a previous commit.
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.
Using this we can update our internal monitor/screen layout state
and emit the GdkScreen::size-changed signal. Work has not
completely finished on this yet, see bug 596238.
Add dummy for _gdk_input_window_crossing (). Set both input_window_destroy
and input_window_crossing pointers in the Impl struct.
Reported by John Ralls.
The root window width and height have already been correctly
initialised in _gdk_root_window_size_init() to cover all monitors, so
don't incorrectly re-initialise using GetSystemMetrics(SM_C[XY]SCREEN)
which only gives the size of the primary monitor anyway. (See MSDN.)
This fixes at least gdk_screen_get_{width,height}() which indirectly
affects at least the positioning of combo box pop-up menus on multiple
monitors.
We need to do a final XQueryWindow to get the coordinates inside the
windows rather than in the parent window.
This fixes bug #597386, "Cannot click buttons more than once...", which
failed due to the grab tracking stuff getting the wrong coordinates as
per the above.
Thanks gcc :
gdkwindow-x11.c:1731: warning: passing argument 3 of
'XReconfigureWMWindow' makes integer from pointer without a cast
/usr/include/X11/Xlib.h:1871: note: expected 'int' but argument is of
type 'struct GdkScreen *'
Signed-off-by: Pascal Terjan <pterjan@mandriva.com>
These event types propagate up the hierarchy anyway, so this means
we avoid setting it unnecessarily. This is especially important
for button press event, since only one client can select for this
on each window, causing X errors if two clients do it.
This detection code is not 100% reliable, but it should fare much better
than the current code, which just compares the device name to a fixed
set of strings. Many applications depend on erasers being recognized
reliably, so we start by checking for a device name containing the
substring 'eraser'.
Signed-off-by: Thomas Jaeger <ThJaeger@gmail.com>
This has two advantages:
1) In many backends, this is faster as we can terminate the window
hierarchy traversal earlier
2) When used in gdkdisplay.c::get_current_toplevel() to get the
current toplevel that has the pointer we now correctly return
a toplevel with the pointer in it where the pointer is inside
some foreign subwindow of a toplevel window.
The second advantage fixes some bugs in client side event generation
when the pointer is inside such a foreign child window.
Based on first patches by Christian Hergert. Change
screen_get_monitor_geometry() so that it translates the layout of the screens
from Cocoa layout to GDK layout. In Cocoa, the screen locations
are specified in Cocoa geometry, as well as that GDK uses a different way
to place individual monitors in the root window. For now only monitors
that are laid out horizontally are supported (see the FIXMEs in the source),
in bug 596238 we will track future work to get things fully right.
Modify _gdk_quartz_window_get_inverted_screen_y() to take the differences
in screen layout between Cocoa and GDK into account. Also this function
is subject to future work.
Explicitly handle resizing by leaving all events in the lower right 15x15
corner to Cocoa, if the window shows a resizing indicator. Some
applications may have widgets allocated in this area. Generally, these
widgets are likely larger than 15x15 so they can still be hit. Often
scroll bars are found in this area and these can also be manipulated by
other means. Since this is the only way of resizing windows on Mac OS X,
it is too important to keep it broken.
When we grab the pointer we need to request more events than what is
specified, otherwise our event emulation stop working and you won't
e.g. get crossing event unless you specified motion event mask.
F-Spot needs this as it draws on a foreign (screensaver) window, which
used to work.
I believe this is safe, because in all typical cases the expose
mask will not be set, so we won't do anything, and its what we used to
do.
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.
When filtering out the events for "window" from the events we got for
our "impl_window", don't forget to adjust the returned number of
events because it might be smaller than what XGetMotionEvents has
returned, and free coords we allocated too much. Also if we filtered
away *all* events, return FALSE and get rid of the allocated history
entirely. Together fixes all sorts of mishehavior when painting in
GIMP, from coords going wild to plain crashes and infinite loops.
On startup, the root window got assigned the size of the main screen.
But, the GdkScreen has the width of all screens/monitors connected to the
machine. Change this so that in _gdk_windowing_window_init, we assign
the width/height of all monitors to the root window width, height.
Should fix bug 594738.
The quartz backend simulates the semantics of XGrabPointer, as a part of
this it checks the event mask of the grab. However, implicit grabs on X
do not go through XGrabPointer and thus the quartz backend should not check
the event mask for these. This fixes various "the UI got stuck" cases.
If we move, resize or otherwise change a window from inside a (double
buffered) expose handler we can run into issues with double buffered
paints that have already been ended but have not yet been commited
to the window from the implicit paint pixmap.
For instance, any copies of source regions due to a window scroll need
to take these into account, and any operation that causes some drawing at
a destination covered by the implicit paint region would be overdrawn
when the implicit paint is ended.
So, before we do any window-hierarchy changing operation while an implicit
paint is in effect we flush all moves and already commited paints.
When a window is moved or resized from a double-buffered expose handler
we can't really just copy the window region around, as the window
will be overdrawn with the double buffered region when the expose returns.
Instead we remove all regions with outstanding implicit paints from the
region to be copied and just mark this area as invalid to be redrawn
later.
This fixes bug 594880.
Its not correct for recurse gdk_window_process_updates_internal, as
the outer instance will overdraw the inner. So, protect against
gdk_window_process_updates() being called while in an expose
handler.
This shouldn't be a repaint problem, as eventually the idle handler
will cause the updates to be processed.
We used to handle zero height/width specially in the non-double buffered
case due to the weird behaviour of XClearArea in this case. However
this is undocumented, incompatible with what happens on double-buffered
drawing, and just not a good API. So, we drop this behaviour, having
fixed gtkclist.c which used this.
There are two issues here. First of all an ignored update didn't
use to unset update_idle which could cause all further idle repaints
to be ignored. (Bug #591583)
Secondly, if we ignore the process_all_updates we may end up not updating
the windows in update_windows unless something else triggers an update.
So, we handle this by checking for recursions and scheduling a new update
at the end of the outermost process_all_updates.
The check for a possible implicit paint flush before queueing an
antiexposure was wrong. An implicit flush doesn't actually NULL
the implicit paint, se we have add a flag to explicitly track if
it is flushed.
Passing region into _gdk_gc_set_clip_region_internal takes ownership,
so don't use it after that. We can just as well just move the usage
above the call.
Generally you only need to work around bugs in one specific app, so we
don't want to affect the applications that application will start.
Thus we unset GDK_NATIVE_WINDOWS after reading it.
For toplevels, never apply clip as shape, instead apply shape.
This way we don't have to re-set it all the time as the window size
changes. Furthermore, this change fixes unsetting a shape on a
toplevel window which didn't actually unset the shape before.
Additionally we never apply clips as shape if the shape would just
be the same as the regular window size. This means we won't unnecessarily
add a useless shape to most native child windows (and additionally this
helps apps that do weird X stuff that don't expect these shaped windows).
I.e. we use:
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
And then use impl_iface instead of the full macro when calling vfuncs.
Also, in some places we avoid getting the iface multiple times.
For instance, two clients selecting for button events can cause BadAccess.
This fixes bug 592624, where a gdk_window_reparent caused us to re-set
the event mask, breaking the workaround for the mozilla BadAccess bug.
When updating the clip region on cairo context (due to window changes or
paints of different sizes) we reset the old clip region, but this was
erronously done inside a cairo_save/cairo_restore pair, which made the
reset not take effect.
This fixes bug #592263.
Instead of doing some magic in gdk_draw_drawable() to avoid double
offsetting when calling gdk_draw_drawable on the impl we call
the vfunc directly on the impl. Thus removing the weird magic from
gdk_draw_drawable().
I tested this with the testgtk test "text", where if the original magic
code is disabled typing a newline in the middle of a text line causes
the double offset issue to appear.
When the clip mask is completely inside the drawable clip region we
don't change the clip at all. However, we did set region_tag_applied,
so when the drawable clip was removed we removed the original clip mask.
This is no good, so we fix that by returning early in this case.
Fixes issue reported in bug #592752.
The fallback pixbuf rendering case ends up calling gdk_draw_image() on the
destination drawable wrapper, which resets the previously set clip region.
So, we need to manually get the impl and draw on that directly.
This fixes bug 592752 where we don't clip pixbuf rendering on non-render
Xservers.
Some applications make weird assumtions on Gtk+ that do not work anymore
with the new client-side windows support. For instance SWT/Eclipse reorders
the stacking order of the X windows directly without telling gdk this,
which breaks gdk drawing as gdk now relies on knowing the stacking order
for window clipping.
This introduces a GDK_NATIVE_WINDOWS environment variable, which if set
causes Gtk+ to always use native windows. Its more compatible with
pre-csw Gtk+ behaviour if you do weird X-specific hacks, although it does
limit the size of GdkWindows to 65535x65535.
gdk_window_get_geometry calls the native function for all non-native
windows. This returns coords relative to the native parent. We need
to convert this to be relative to the client side parent.
This fixes DnD coordinates in firefox (bug 588437).
If antiexposures are queued and then we do the outstanding moves
we will queue translations that will affect incomming exposes
wrongly wrt the antiexposure. So, make sure we process the outstanding
moves before doing the antiexposure.
Additionally this commit adds a bunch of comments about how the
expose handling works and fixes a small bug that made us always
flush outstanding moves a little to early than necessary.
Set the input_window_destroy and input_window_crossing methods of the
GdkWindowImplIface on Windows. Add implementation of
_gdk_input_crossing_event that is mostly dummy, though.
Apps may change the window hierarchy while recursing over it by
destroying windows from the expose event handler. We need to copy
the children list and ref all the children while recursing.
This fixes some crashers in gedit (bug #589367, bug #591434)
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().
When we copy the region we need to also re-expose the areas of
the copied region that was not also in the destination.
And, we need to do this invalidation after the move, as the
move also moves any invalid area.
If there are outstanding moves in an area that intersects
the source of an outstanding move we need to move the invalid
area correspondingly, otherwise we will expose the wrong area
as the outstanding move copy will happen before we expose
the invalid area.
When moving an area we move any invalid region in this area to the
new place, but there really is no need to remove the old invalid
area as it would just be invalidated again (being newly exposed).
This extends the usage of the native clear region call such that its
called also for windows that have parent relative background all the
way up to a native window. That way we get true background relative
background clearing even to a foreign parent, which means that some
transparent notification icons look right again.
GdkDrawable->draw_drawback was replaced with a new vfunc
draw_drawback_with_src that is now called from gdk_draw_drawable.
However, some code seems to call the vfunc directly (see bug #591288),
so make it chain to the new call.
Note that such direct vfunc calls are a bad idea and won't work for all
cases.
This moves the native show/hide calls to the generic code
for calculating viewable rather than in its own separate code
called from gdk_window_show/hide. This simplifies the code a bit,
but most significantly it means things are correctly shown when
they become viewable for other reasons than a show/hide call.
For instance, this fixes bug 590442 (gvim embedding) where the
toplevel GtkPlug is mapped by the embedder and we didn't previously
pick up that the native children became viewable and should be shown.
We used to invalidate the whole window when raised, but this is
unnecessary much, we now just invalidate the visible area minus the
previously visible area.
This also fixes a problem where expose calling raise caused a loop (#588438)
This never worked before csw since the root window is never
set as IS_MAPPED, but with the new viewable check (which is
true for the root window) we could erronously queue exposes
on the root window.
This happened unexpectedly in bug 589369, where metacity
got a GraphicsExpose event on the root window due to some
graphics operation, queueing an expose which would be handled
by clearing that area. That is fixed with this commit.
This seems to more or less fix the build. On Tiger there are still issues
with libresolv missing on the link line, I will figure out what's up with
that soonish.
We get the real pixmap size and use as cairo surface size rather
than doing some magic to try to get clipping on the right hand size
(and the magic looks wrong anyway).
The previous code could result in the width/height being to big for
the cairo 28.4 fix point size and thus not drawing anything.
This fixes bug #588076.
When the fallback for gdk_draw_pixbuf (gdk_drawable_real_draw_pixbuf)
is called with a window destination we have already applied any clip
regions and offsets for the window, but the window we get is a wrapper
and not an impl. We have to ensure we really draw to the impl, as
otherwise the pixbuf drawing will be clipped by client side subwindows.
This fixes bug 588553.
gdk_window_input_shape_combine_mask() can accept NULL for the mask
parameter, but it wasn't checking for NULL before passing the
resulting GdkRegion to gdk_region_destroy(). Fixes#589275
When the region is empty we can return early, because there
is no more area to remove. This happens often for children
of scrolled windows (i.e. things that are clipped out.
Implement _gdk_win32_window_destroy() by just renaming
_gdk_windowing_window_destroy(), removed superfuous stub.
Also cleaned up implementations of gdk_win32_window_set_background()
and gdk_win32_window_set_back_pixmap() - removed stuff now done at the
respective gdk_window_*() function.
Resurrcetion and adaption of find_window_for_mouse_event(). The window
receiving the WM_MOUSEMOVE, WM_?BUTTONDOWN is not necessarily the one
interested in GDK_(ENTER|MOTION|LEAVE)_NOTIFY
http://bugzilla.gnome.org/show_bug.cgi?id=588373
Also added some more more TODO_CSW and disabled print_event(): it can not
cope with the new _gdk_windowing_got_event() eating/morphing events.
The scrolling and region moving code needs to avoid drawing when the
window is mapped, which it did. However, it also needs to avoid
drawing when any of its parents are not mapped, which it didn't so
switch to using gdk_window_is_viewable().
This fixes the index rendering in evolution (#588169)
When we ungrab the pointer we don't get enter events for the window the
pointer is in at the time of the ungrab, so we manually query for the
window the pointer is in. The same thing actually happens on re-grab if
the previous grab was !owner_events (meaning we don't get crossing events
for windows other than the grab) but the new grab is owner_events (and
thus non-grab windows need to get crossing events).
This factors out some common code and enables it also for the re-grab
to owner_events case.
If we get a nonlinear enter/leave notify on the toplevel we need
to set nonlinear in all the events we send, even if the in-toplevel
tree is linear.
This fixes combobox menus popping down immediately when you click
(not hold). (bug #587559)
We really need to wait for the MapNotify from the xserver to ensure
that the window has been mapped, as it may be delayed by the WM, network
or similar things.
This fixes a problem in the /ui-tests/keys-events gtk test
This is more important in the client side windows world, as clip masks
may be used for clipping to non-native subwindows. This fixes a bug
in aisleriot where it uses masked pixbuf drawing and it ends up drawing
over the moving card subwindow.
Turns out pygtk build broke due to the argument addition to draw_drawable.
So, we now add a new vfunc for the new draw_drawable and are thus
backwards compat.
we now use gdk_offscreen_window_set_embedder() instead of a signal
to get the parent. This also replaces set_has_offscreen_changes.
Rename "parent" in all embedding related names to "embedder" to make it
more obviously different than the normal parent.
Rename gdk_window_get_offscreen_pixmap to gdk_offscreen_window_get_pixmap
to match the other offscreen calls.
Rename gdk_window_offscreen_children_changed to gdk_window_geometry_changed
as this is more descriptive.
We emulate visibility by unmapping (in X) all mapped (according to
gdk) windows that are not visible (all parents mapped). This is because
there may be client side windows inbetween the native windows in the
hierarchy, so you can't know a native window is visible just because
all the parent native windows are mapped.
However, we don't want to unmap foreign windows, as that may cause all
sort of unexpected issues. This should be safe, because generally the
parent of a foreign window is a native window (e.g. a socket), so its
gdk visibility state is the same as the Xserver one.
This fixes an issue with the GDM notification area where the unmap of
the plug caused spurious UnmapNotify events that confused GtkSocket and
caused icons to become one pixel wide.
Last commit was bad, as it didn't clip against client side
children. This implements such clipping first and then
only clears the rectangles that need to be cleared.
This is how cairo works with native children.
This fixes an issue where the drag target outline is visible on the
evolution folder treeview when it isn't with native windows.
Without this we can't draw to them, which caused problems for e.g.
gnome-settings-daemon clearing the background when the desktop
background changed.
Note: We don't actually clip away child windows from the root window,
the clip is just based on the size of the root window.
