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10648 lines
306 KiB
C
10648 lines
306 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-2007 Peter Mattis, Spencer Kimball,
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* Josh MacDonald, Ryan Lortie
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#include "gdkwindow.h"
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#ifdef GDK_WINDOWING_X11
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#include "x11/gdkx.h" /* For workaround */
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#endif
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#include "math.h"
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#include "gdk.h" /* For gdk_rectangle_union() */
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#include "gdkinternals.h"
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#include "gdkintl.h"
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#include "gdkscreen.h"
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#include "gdkdeviceprivate.h"
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#include "gdkdrawable.h"
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#include "gdkmarshalers.h"
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#include "gdkpixmap.h"
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#include "gdkscreen.h"
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#include "gdkwindowimpl.h"
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#undef DEBUG_WINDOW_PRINTING
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/**
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* SECTION:windows
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* @Short_description: Onscreen display areas in the target window system
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* @Title: Windows
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*
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* A #GdkWindow is a rectangular region on the screen. It's a low-level object,
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* used to implement high-level objects such as #GtkWidget and #GtkWindow on the
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* GTK+ level. A #GtkWindow is a toplevel window, the thing a user might think
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* of as a "window" with a titlebar and so on; a #GtkWindow may contain many
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* #GdkWindow<!-- -->s. For example, each #GtkButton has a #GdkWindow associated
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* with it.
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*
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* <refsect2 id="COMPOSITED-WINDOWS">
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* <title>Composited Windows</title>
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* <para>
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* Normally, the windowing system takes care of rendering the contents of a
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* child window onto its parent window. This mechanism can be intercepted by
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* calling gdk_window_set_composited() on the child window. For a
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* <firstterm>composited</firstterm> window it is the responsibility of the
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* application to render the window contents at the right spot.
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* </para>
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* <example id="composited-window-example">
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* <title>Composited windows</title>
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* <programlisting>
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* <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" parse="text" href="../../../../examples/gdk/composited-window-example.c"><xi:fallback>FIXME: MISSING XINCLUDE CONTENT</xi:fallback></xi:include>
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* </programlisting></example>
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* <para>
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* In the example <xref linkend="composited-window-example"/>, a button is
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* placed inside of an event box inside of a window. The event box is set as
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* composited and therefore is no longer automatically drawn to the screen.
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*
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* When the contents of the event box change, an expose event is generated on
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* it's parent window (which, in this case, belongs to the toplevel #GtkWindow).
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* The expose handler for this widget is responsible for merging the changes
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* back on the screen in the way that it wishes.
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*
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* In our case, we merge the contents with a 50% transparency. We also set the
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* background colour of the window to red. The effect is that the background
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* shows through the button.
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* </para>
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* </refsect2>
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* <refsect2 id="OFFSCREEN-WINDOWS">
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* <title>Offscreen Windows</title>
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* <para>
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* Offscreen windows are more general than composited windows, since they allow
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* not only to modify the rendering of the child window onto its parent, but
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* also to apply coordinate transformations.
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*
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* To integrate an offscreen window into a window hierarchy, one has to call
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* gdk_offscreen_window_set_embedder() and handle a number of signals. The
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* #GdkWindow::pick-embedded-child signal on the embedder window is used to
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* select an offscreen child at given coordinates, and the
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* #GdkWindow::to-embedder and #GdkWindow::from-embedder signals on the
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* offscreen window are used to translate coordinates between the embedder and
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* the offscreen window.
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*
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* For rendering an offscreen window onto its embedder, the contents of the
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* offscreen window are available as a pixmap, via
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* gdk_offscreen_window_get_pixmap().
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* </para>
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* </refsect2>
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*/
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/* Historically a GdkWindow always matches a platform native window,
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* be it a toplevel window or a child window. In this setup the
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* GdkWindow (and other GdkDrawables) were platform independent classes,
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* and the actual platform specific implementation was in a delegate
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* object availible as "impl" in the window object.
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*
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* With the addition of client side windows and offscreen windows this
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* changes a bit. The application-visible GdkWindow object behaves as
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* it did before, but not all such windows now have a corresponding native
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* window. Instead windows that are "client side" are emulated by the gdk
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* code such that clipping, drawing, moving, events etc work as expected.
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*
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* For GdkWindows that have a native window the "impl" object is the
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* same as before. However, for all client side windows the impl object
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* is shared with its parent (i.e. all client windows descendants of one
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* native window has the same impl.
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*
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* Additionally there is a new type of platform independent impl object,
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* GdkOffscreenWindow. All windows of type GDK_WINDOW_OFFSCREEN get an impl
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* of this type (while their children are generally GDK_WINDOW_CHILD virtual
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* windows). Such windows work by allocating a GdkPixmap as the backing store
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* for drawing operations, which is resized with the window.
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*
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* GdkWindows have a pointer to the "impl window" they are in, i.e.
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* the topmost GdkWindow which have the same "impl" value. This is stored
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* in impl_window, which is different from the window itself only for client
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* side windows.
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* All GdkWindows (native or not) track the position of the window in the parent
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* (x, y), the size of the window (width, height), the position of the window
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* with respect to the impl window (abs_x, abs_y). We also track the clip
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* region of the window wrt parent windows and siblings, in window-relative
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* coordinates with and without child windows included (clip_region,
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* clip_region_with_children).
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*
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* All toplevel windows are native windows, but also child windows can be
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* native (although not children of offscreens). We always listen to
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* a basic set of events (see get_native_event_mask) for these windows
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* so that we can emulate events for any client side children.
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*
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* For native windows we apply the calculated clip region as a window shape
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* so that eg. client side siblings that overlap the native child properly
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* draws over the native child window.
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*
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* In order to minimize flicker and for performance we use a couple of cacheing
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* tricks. First of all, every time we do a window to window copy area, for instance
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* when moving a client side window or when scrolling/moving a region in a window
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* we store this in outstanding_moves instead of applying immediately. We then
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* delay this move until we really need it (because something depends on being
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* able to read it), or until we're handing a redraw from an expose/invalidation
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* (actually we delay it past redraw, but before blitting the double buffer pixmap
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* to the window). This gives us two advantages. First of all it minimizes the time
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* from the window is moved to the exposes related to that move, secondly it allows
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* us to be smart about how to do the copy. We combine multiple moves into one (when
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* possible) and we don't actually do copies to anything that is or will be
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* invalidated and exposed anyway.
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*
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* Secondly, we use something called a "implicit paint" during repaint handling.
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* An implicit paint is similar to a regular paint for the paint stack, but it is
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* not put on the stack. Instead, it is set on the impl window, and later when
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* regular gdk_window_begin_paint_region() happen on a window of this impl window
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* we reuse the pixmap from the implicit paint. During repaint we create and at the
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* end flush an implicit paint, which means we can collect all the paints on
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* multiple client side windows in the same backing store pixmap.
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*/
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#define USE_BACKING_STORE /* Appears to work on Win32, too, now. */
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/* This adds a local value to the GdkVisibilityState enum */
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#define GDK_VISIBILITY_NOT_VIEWABLE 3
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enum {
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PICK_EMBEDDED_CHILD, /* only called if children are embedded */
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TO_EMBEDDER,
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FROM_EMBEDDER,
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LAST_SIGNAL
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};
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enum {
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PROP_0,
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PROP_CURSOR
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};
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typedef enum {
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CLEAR_BG_NONE,
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CLEAR_BG_WINCLEARED, /* Clear backgrounds except those that the window system clears */
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CLEAR_BG_ALL
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} ClearBg;
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struct _GdkWindowPaint
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{
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cairo_region_t *region;
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GdkPixmap *pixmap;
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gint x_offset;
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gint y_offset;
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cairo_surface_t *surface;
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guint uses_implicit : 1;
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guint flushed : 1;
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guint32 region_tag;
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};
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typedef struct {
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cairo_region_t *dest_region; /* The destination region */
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int dx, dy; /* The amount that the source was moved to reach dest_region */
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} GdkWindowRegionMove;
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/* Global info */
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static cairo_surface_t *gdk_window_ref_cairo_surface (GdkDrawable *drawable);
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static cairo_surface_t *gdk_window_create_cairo_surface (GdkDrawable *drawable,
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int width,
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int height);
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static void gdk_window_drop_cairo_surface (GdkWindowObject *private);
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static void gdk_window_set_cairo_clip (GdkDrawable *drawable,
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cairo_t *cr);
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static void gdk_window_real_get_size (GdkDrawable *drawable,
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gint *width,
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gint *height);
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static GdkVisual* gdk_window_real_get_visual (GdkDrawable *drawable);
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static gint gdk_window_real_get_depth (GdkDrawable *drawable);
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static GdkScreen* gdk_window_real_get_screen (GdkDrawable *drawable);
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static void gdk_window_real_set_colormap (GdkDrawable *drawable,
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GdkColormap *cmap);
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static GdkColormap* gdk_window_real_get_colormap (GdkDrawable *drawable);
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static GdkDrawable* gdk_window_get_source_drawable (GdkDrawable *drawable);
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static cairo_region_t* gdk_window_get_clip_region (GdkDrawable *drawable);
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static cairo_region_t* gdk_window_get_visible_region (GdkDrawable *drawable);
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static void gdk_window_free_paint_stack (GdkWindow *window);
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static void gdk_window_init (GdkWindowObject *window);
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static void gdk_window_class_init (GdkWindowObjectClass *klass);
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static void gdk_window_finalize (GObject *object);
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static void gdk_window_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gdk_window_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void gdk_window_clear_backing_region (GdkWindow *window,
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cairo_region_t *region);
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static void gdk_window_redirect_free (GdkWindowRedirect *redirect);
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static void apply_redirect_to_children (GdkWindowObject *private,
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GdkWindowRedirect *redirect);
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static void remove_redirect_from_children (GdkWindowObject *private,
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GdkWindowRedirect *redirect);
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static void recompute_visible_regions (GdkWindowObject *private,
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gboolean recalculate_siblings,
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gboolean recalculate_children);
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static void gdk_window_flush_outstanding_moves (GdkWindow *window);
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static void gdk_window_flush_recursive (GdkWindowObject *window);
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static void do_move_region_bits_on_impl (GdkWindowObject *private,
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cairo_region_t *region, /* In impl window coords */
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int dx, int dy);
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static void gdk_window_invalidate_in_parent (GdkWindowObject *private);
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static void move_native_children (GdkWindowObject *private);
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static void update_cursor (GdkDisplay *display,
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GdkDevice *device);
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static void impl_window_add_update_area (GdkWindowObject *impl_window,
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cairo_region_t *region);
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static void gdk_window_region_move_free (GdkWindowRegionMove *move);
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static void gdk_window_invalidate_region_full (GdkWindow *window,
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const cairo_region_t *region,
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gboolean invalidate_children,
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ClearBg clear_bg);
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static void gdk_window_invalidate_rect_full (GdkWindow *window,
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const GdkRectangle *rect,
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gboolean invalidate_children,
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ClearBg clear_bg);
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static guint signals[LAST_SIGNAL] = { 0 };
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static gpointer parent_class = NULL;
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static const cairo_user_data_key_t gdk_window_cairo_key;
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static guint32
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new_region_tag (void)
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{
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static guint32 tag = 0;
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return ++tag;
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}
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GType
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gdk_window_object_get_type (void)
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{
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static GType object_type = 0;
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if (!object_type)
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object_type = g_type_register_static_simple (GDK_TYPE_DRAWABLE,
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"GdkWindow",
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sizeof (GdkWindowObjectClass),
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(GClassInitFunc) gdk_window_class_init,
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sizeof (GdkWindowObject),
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(GInstanceInitFunc) gdk_window_init,
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0);
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return object_type;
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}
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GType
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_gdk_paintable_get_type (void)
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{
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static GType paintable_type = 0;
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if (!paintable_type)
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{
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const GTypeInfo paintable_info =
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{
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sizeof (GdkPaintableIface), /* class_size */
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NULL, /* base_init */
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NULL, /* base_finalize */
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};
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paintable_type = g_type_register_static (G_TYPE_INTERFACE,
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g_intern_static_string ("GdkPaintable"),
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&paintable_info, 0);
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g_type_interface_add_prerequisite (paintable_type, G_TYPE_OBJECT);
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}
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return paintable_type;
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}
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static void
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gdk_window_init (GdkWindowObject *window)
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{
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/* 0-initialization is good for all other fields. */
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window->window_type = GDK_WINDOW_CHILD;
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window->state = GDK_WINDOW_STATE_WITHDRAWN;
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window->width = 1;
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window->height = 1;
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window->toplevel_window_type = -1;
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/* starts hidden */
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window->effective_visibility = GDK_VISIBILITY_NOT_VIEWABLE;
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window->visibility = GDK_VISIBILITY_FULLY_OBSCURED;
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/* Default to unobscured since some backends don't send visibility events */
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window->native_visibility = GDK_VISIBILITY_UNOBSCURED;
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}
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/* Stop and return on the first non-NULL parent */
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static gboolean
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accumulate_get_window (GSignalInvocationHint *ihint,
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GValue *return_accu,
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const GValue *handler_return,
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gpointer data)
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{
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g_value_copy (handler_return, return_accu);
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/* Continue while returning NULL */
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return g_value_get_object (handler_return) == NULL;
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}
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static GQuark quark_pointer_window = 0;
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static void
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gdk_window_class_init (GdkWindowObjectClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GdkDrawableClass *drawable_class = GDK_DRAWABLE_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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object_class->finalize = gdk_window_finalize;
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object_class->set_property = gdk_window_set_property;
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object_class->get_property = gdk_window_get_property;
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drawable_class->get_depth = gdk_window_real_get_depth;
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drawable_class->get_screen = gdk_window_real_get_screen;
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drawable_class->get_size = gdk_window_real_get_size;
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drawable_class->set_colormap = gdk_window_real_set_colormap;
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drawable_class->get_colormap = gdk_window_real_get_colormap;
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drawable_class->get_visual = gdk_window_real_get_visual;
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drawable_class->ref_cairo_surface = gdk_window_ref_cairo_surface;
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drawable_class->create_cairo_surface = gdk_window_create_cairo_surface;
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drawable_class->set_cairo_clip = gdk_window_set_cairo_clip;
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drawable_class->get_clip_region = gdk_window_get_clip_region;
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drawable_class->get_visible_region = gdk_window_get_visible_region;
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drawable_class->get_source_drawable = gdk_window_get_source_drawable;
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quark_pointer_window = g_quark_from_static_string ("gtk-pointer-window");
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/* Properties */
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/**
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* GdkWindow:cursor:
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*
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* The mouse pointer for a #GdkWindow. See gdk_window_set_cursor() and
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* gdk_window_get_cursor() for details.
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*
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* Since: 2.18
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*/
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g_object_class_install_property (object_class,
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PROP_CURSOR,
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g_param_spec_boxed ("cursor",
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P_("Cursor"),
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P_("Cursor"),
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GDK_TYPE_CURSOR,
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G_PARAM_READWRITE));
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/**
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* GdkWindow::pick-embedded-child:
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* @window: the window on which the signal is emitted
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* @x: x coordinate in the window
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* @y: y coordinate in the window
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*
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* The ::pick-embedded-child signal is emitted to find an embedded
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* child at the given position.
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*
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* Returns: the #GdkWindow of the embedded child at @x, @y, or %NULL
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*
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* Since: 2.18
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*/
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signals[PICK_EMBEDDED_CHILD] =
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g_signal_new (g_intern_static_string ("pick-embedded-child"),
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_LAST,
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0,
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accumulate_get_window, NULL,
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_gdk_marshal_OBJECT__DOUBLE_DOUBLE,
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GDK_TYPE_WINDOW,
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2,
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G_TYPE_DOUBLE,
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G_TYPE_DOUBLE);
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|
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/**
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* GdkWindow::to-embedder:
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* @window: the offscreen window on which the signal is emitted
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* @offscreen-x: x coordinate in the offscreen window
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|
* @offscreen-y: y coordinate in the offscreen window
|
|
* @embedder-x: return location for the x coordinate in the embedder window
|
|
* @embedder-y: return location for the y coordinate in the embedder window
|
|
*
|
|
* The ::to-embedder signal is emitted to translate coordinates
|
|
* in an offscreen window to its embedder.
|
|
*
|
|
* See also #GtkWindow::from-embedder.
|
|
*
|
|
* Since: 2.18
|
|
*/
|
|
signals[TO_EMBEDDER] =
|
|
g_signal_new (g_intern_static_string ("to-embedder"),
|
|
G_OBJECT_CLASS_TYPE (object_class),
|
|
G_SIGNAL_RUN_LAST,
|
|
0,
|
|
NULL, NULL,
|
|
_gdk_marshal_VOID__DOUBLE_DOUBLE_POINTER_POINTER,
|
|
G_TYPE_NONE,
|
|
4,
|
|
G_TYPE_DOUBLE,
|
|
G_TYPE_DOUBLE,
|
|
G_TYPE_POINTER,
|
|
G_TYPE_POINTER);
|
|
|
|
/**
|
|
* GdkWindow::from-embedder:
|
|
* @window: the offscreen window on which the signal is emitted
|
|
* @embedder-x: x coordinate in the embedder window
|
|
* @embedder-y: y coordinate in the embedder window
|
|
* @offscreen-x: return location for the x coordinate in the offscreen window
|
|
* @offscreen-y: return location for the y coordinate in the offscreen window
|
|
*
|
|
* The ::from-embedder signal is emitted to translate coordinates
|
|
* in the embedder of an offscreen window to the offscreen window.
|
|
*
|
|
* See also #GtkWindow::to-embedder.
|
|
*
|
|
* Since: 2.18
|
|
*/
|
|
signals[FROM_EMBEDDER] =
|
|
g_signal_new (g_intern_static_string ("from-embedder"),
|
|
G_OBJECT_CLASS_TYPE (object_class),
|
|
G_SIGNAL_RUN_LAST,
|
|
0,
|
|
NULL, NULL,
|
|
_gdk_marshal_VOID__DOUBLE_DOUBLE_POINTER_POINTER,
|
|
G_TYPE_NONE,
|
|
4,
|
|
G_TYPE_DOUBLE,
|
|
G_TYPE_DOUBLE,
|
|
G_TYPE_POINTER,
|
|
G_TYPE_POINTER);
|
|
}
|
|
|
|
static void
|
|
device_removed_cb (GdkDeviceManager *device_manager,
|
|
GdkDevice *device,
|
|
GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private;
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
private->devices_inside = g_list_remove (private->devices_inside, device);
|
|
g_hash_table_remove (private->device_cursor, device);
|
|
|
|
if (private->device_events)
|
|
g_hash_table_remove (private->device_events, device);
|
|
}
|
|
|
|
static void
|
|
gdk_window_finalize (GObject *object)
|
|
{
|
|
GdkWindow *window = GDK_WINDOW (object);
|
|
GdkWindowObject *obj = (GdkWindowObject *) object;
|
|
GdkDeviceManager *device_manager;
|
|
|
|
device_manager = gdk_display_get_device_manager (gdk_drawable_get_display (GDK_DRAWABLE (window)));
|
|
g_signal_handlers_disconnect_by_func (device_manager, device_removed_cb, window);
|
|
|
|
if (!GDK_WINDOW_DESTROYED (window))
|
|
{
|
|
if (GDK_WINDOW_TYPE (window) != GDK_WINDOW_FOREIGN)
|
|
{
|
|
g_warning ("losing last reference to undestroyed window\n");
|
|
_gdk_window_destroy (window, FALSE);
|
|
}
|
|
else
|
|
/* We use TRUE here, to keep us from actually calling
|
|
* XDestroyWindow() on the window
|
|
*/
|
|
_gdk_window_destroy (window, TRUE);
|
|
}
|
|
|
|
if (obj->impl)
|
|
{
|
|
g_object_unref (obj->impl);
|
|
obj->impl = NULL;
|
|
}
|
|
|
|
if (obj->impl_window != obj)
|
|
{
|
|
g_object_unref (obj->impl_window);
|
|
obj->impl_window = NULL;
|
|
}
|
|
|
|
if (obj->shape)
|
|
cairo_region_destroy (obj->shape);
|
|
|
|
if (obj->input_shape)
|
|
cairo_region_destroy (obj->input_shape);
|
|
|
|
if (obj->cursor)
|
|
gdk_cursor_unref (obj->cursor);
|
|
|
|
if (obj->device_cursor)
|
|
g_hash_table_destroy (obj->device_cursor);
|
|
|
|
if (obj->device_events)
|
|
g_hash_table_destroy (obj->device_events);
|
|
|
|
if (obj->devices_inside)
|
|
g_list_free (obj->devices_inside);
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
gdk_window_set_property (GObject *object,
|
|
guint prop_id,
|
|
const GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
GdkWindow *window = (GdkWindow *)object;
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_CURSOR:
|
|
gdk_window_set_cursor (window, g_value_get_boxed (value));
|
|
break;
|
|
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gdk_window_get_property (GObject *object,
|
|
guint prop_id,
|
|
GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
GdkWindow *window = (GdkWindow *) object;
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_CURSOR:
|
|
g_value_set_boxed (value, gdk_window_get_cursor (window));
|
|
break;
|
|
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gdk_window_is_offscreen (GdkWindowObject *window)
|
|
{
|
|
return window->window_type == GDK_WINDOW_OFFSCREEN;
|
|
}
|
|
|
|
static GdkWindowObject *
|
|
gdk_window_get_impl_window (GdkWindowObject *window)
|
|
{
|
|
return window->impl_window;
|
|
}
|
|
|
|
GdkWindow *
|
|
_gdk_window_get_impl_window (GdkWindow *window)
|
|
{
|
|
return (GdkWindow *)gdk_window_get_impl_window ((GdkWindowObject *)window);
|
|
}
|
|
|
|
static gboolean
|
|
gdk_window_has_impl (GdkWindowObject *window)
|
|
{
|
|
return window->impl_window == window;
|
|
}
|
|
|
|
static gboolean
|
|
gdk_window_is_toplevel (GdkWindowObject *window)
|
|
{
|
|
return
|
|
window->parent == NULL ||
|
|
window->parent->window_type == GDK_WINDOW_ROOT;
|
|
}
|
|
|
|
gboolean
|
|
_gdk_window_has_impl (GdkWindow *window)
|
|
{
|
|
return gdk_window_has_impl ((GdkWindowObject *)window);
|
|
}
|
|
|
|
static gboolean
|
|
gdk_window_has_no_impl (GdkWindowObject *window)
|
|
{
|
|
return window->impl_window != window;
|
|
}
|
|
|
|
static void
|
|
remove_child_area (GdkWindowObject *private,
|
|
GdkWindowObject *until,
|
|
gboolean for_input,
|
|
cairo_region_t *region)
|
|
{
|
|
GdkWindowObject *child;
|
|
cairo_region_t *child_region;
|
|
GdkRectangle r;
|
|
GList *l;
|
|
cairo_region_t *shape;
|
|
|
|
for (l = private->children; l; l = l->next)
|
|
{
|
|
child = l->data;
|
|
|
|
if (child == until)
|
|
break;
|
|
|
|
/* If region is empty already, no need to do
|
|
anything potentially costly */
|
|
if (cairo_region_is_empty (region))
|
|
break;
|
|
|
|
if (!GDK_WINDOW_IS_MAPPED (child) || child->input_only || child->composited)
|
|
continue;
|
|
|
|
/* Ignore offscreen children, as they don't draw in their parent and
|
|
* don't take part in the clipping */
|
|
if (gdk_window_is_offscreen (child))
|
|
continue;
|
|
|
|
r.x = child->x;
|
|
r.y = child->y;
|
|
r.width = child->width;
|
|
r.height = child->height;
|
|
|
|
/* Bail early if child totally outside region */
|
|
if (cairo_region_contains_rectangle (region, &r) == CAIRO_REGION_OVERLAP_OUT)
|
|
continue;
|
|
|
|
child_region = cairo_region_create_rectangle (&r);
|
|
|
|
if (child->shape)
|
|
{
|
|
/* Adjust shape region to parent window coords */
|
|
cairo_region_translate (child->shape, child->x, child->y);
|
|
cairo_region_intersect (child_region, child->shape);
|
|
cairo_region_translate (child->shape, -child->x, -child->y);
|
|
}
|
|
else if (private->window_type == GDK_WINDOW_FOREIGN)
|
|
{
|
|
shape = _gdk_windowing_window_get_shape ((GdkWindow *)child);
|
|
if (shape)
|
|
{
|
|
cairo_region_intersect (child_region, shape);
|
|
cairo_region_destroy (shape);
|
|
}
|
|
}
|
|
|
|
if (for_input)
|
|
{
|
|
if (child->input_shape)
|
|
cairo_region_intersect (child_region, child->input_shape);
|
|
else if (private->window_type == GDK_WINDOW_FOREIGN)
|
|
{
|
|
shape = _gdk_windowing_window_get_input_shape ((GdkWindow *)child);
|
|
if (shape)
|
|
{
|
|
cairo_region_intersect (child_region, shape);
|
|
cairo_region_destroy (shape);
|
|
}
|
|
}
|
|
}
|
|
|
|
cairo_region_subtract (region, child_region);
|
|
cairo_region_destroy (child_region);
|
|
|
|
}
|
|
}
|
|
|
|
static GdkVisibilityState
|
|
effective_visibility (GdkWindowObject *private)
|
|
{
|
|
GdkVisibilityState native;
|
|
|
|
if (!gdk_window_is_viewable ((GdkWindow *)private))
|
|
return GDK_VISIBILITY_NOT_VIEWABLE;
|
|
|
|
native = private->impl_window->native_visibility;
|
|
|
|
if (native == GDK_VISIBILITY_FULLY_OBSCURED ||
|
|
private->visibility == GDK_VISIBILITY_FULLY_OBSCURED)
|
|
return GDK_VISIBILITY_FULLY_OBSCURED;
|
|
else if (native == GDK_VISIBILITY_UNOBSCURED)
|
|
return private->visibility;
|
|
else /* native PARTIAL, private partial or unobscured */
|
|
return GDK_VISIBILITY_PARTIAL;
|
|
}
|
|
|
|
static void
|
|
gdk_window_update_visibility (GdkWindowObject *private)
|
|
{
|
|
GdkVisibilityState new_visibility;
|
|
GdkEvent *event;
|
|
|
|
new_visibility = effective_visibility (private);
|
|
|
|
if (new_visibility != private->effective_visibility)
|
|
{
|
|
private->effective_visibility = new_visibility;
|
|
|
|
if (new_visibility != GDK_VISIBILITY_NOT_VIEWABLE &&
|
|
private->event_mask & GDK_VISIBILITY_NOTIFY)
|
|
{
|
|
event = _gdk_make_event ((GdkWindow *)private, GDK_VISIBILITY_NOTIFY,
|
|
NULL, FALSE);
|
|
event->visibility.state = new_visibility;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gdk_window_update_visibility_recursively (GdkWindowObject *private,
|
|
GdkWindowObject *only_for_impl)
|
|
{
|
|
GdkWindowObject *child;
|
|
GList *l;
|
|
|
|
gdk_window_update_visibility (private);
|
|
for (l = private->children; l != NULL; l = l->next)
|
|
{
|
|
child = l->data;
|
|
if ((only_for_impl == NULL) ||
|
|
(only_for_impl == child->impl_window))
|
|
gdk_window_update_visibility_recursively (child, only_for_impl);
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
should_apply_clip_as_shape (GdkWindowObject *private)
|
|
{
|
|
return
|
|
gdk_window_has_impl (private) &&
|
|
/* Not for offscreens */
|
|
!gdk_window_is_offscreen (private) &&
|
|
/* or for toplevels */
|
|
!gdk_window_is_toplevel (private) &&
|
|
/* or for foreign windows */
|
|
private->window_type != GDK_WINDOW_FOREIGN &&
|
|
/* or for the root window */
|
|
private->window_type != GDK_WINDOW_ROOT;
|
|
}
|
|
|
|
static void
|
|
apply_shape (GdkWindowObject *private,
|
|
cairo_region_t *region)
|
|
{
|
|
GdkWindowImplIface *impl_iface;
|
|
|
|
/* We trash whether we applied a shape so that
|
|
we can avoid unsetting it many times, which
|
|
could happen in e.g. apply_clip_as_shape as
|
|
windows get resized */
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
if (region)
|
|
impl_iface->shape_combine_region ((GdkWindow *)private,
|
|
region, 0, 0);
|
|
else if (private->applied_shape)
|
|
impl_iface->shape_combine_region ((GdkWindow *)private,
|
|
NULL, 0, 0);
|
|
|
|
private->applied_shape = region != NULL;
|
|
}
|
|
|
|
static gboolean
|
|
region_rect_equal (const cairo_region_t *region,
|
|
const GdkRectangle *rect)
|
|
{
|
|
GdkRectangle extents;
|
|
|
|
if (cairo_region_num_rectangles (region) != 1)
|
|
return FALSE;
|
|
|
|
cairo_region_get_extents (region, &extents);
|
|
|
|
return extents.x == rect->x &&
|
|
extents.y == rect->y &&
|
|
extents.width == rect->width &&
|
|
extents.height == rect->height;
|
|
}
|
|
|
|
static void
|
|
apply_clip_as_shape (GdkWindowObject *private)
|
|
{
|
|
GdkRectangle r;
|
|
|
|
r.x = r.y = 0;
|
|
r.width = private->width;
|
|
r.height = private->height;
|
|
|
|
/* We only apply the clip region if would differ
|
|
from the actual clip region implied by the size
|
|
of the window. This is to avoid unneccessarily
|
|
adding meaningless shapes to all native subwindows */
|
|
if (!region_rect_equal (private->clip_region, &r))
|
|
apply_shape (private, private->clip_region);
|
|
else
|
|
apply_shape (private, NULL);
|
|
}
|
|
|
|
static void
|
|
recompute_visible_regions_internal (GdkWindowObject *private,
|
|
gboolean recalculate_clip,
|
|
gboolean recalculate_siblings,
|
|
gboolean recalculate_children)
|
|
{
|
|
GdkRectangle r;
|
|
GList *l;
|
|
GdkWindowObject *child;
|
|
cairo_region_t *new_clip, *old_clip_region_with_children;
|
|
gboolean clip_region_changed;
|
|
gboolean abs_pos_changed;
|
|
int old_abs_x, old_abs_y;
|
|
|
|
old_abs_x = private->abs_x;
|
|
old_abs_y = private->abs_y;
|
|
|
|
/* Update absolute position */
|
|
if (gdk_window_has_impl (private))
|
|
{
|
|
/* Native window starts here */
|
|
private->abs_x = 0;
|
|
private->abs_y = 0;
|
|
}
|
|
else
|
|
{
|
|
private->abs_x = private->parent->abs_x + private->x;
|
|
private->abs_y = private->parent->abs_y + private->y;
|
|
}
|
|
|
|
abs_pos_changed =
|
|
private->abs_x != old_abs_x ||
|
|
private->abs_y != old_abs_y;
|
|
|
|
/* Update clip region based on:
|
|
* parent clip
|
|
* window size
|
|
* siblings in parents above window
|
|
*/
|
|
clip_region_changed = FALSE;
|
|
if (recalculate_clip)
|
|
{
|
|
if (private->viewable)
|
|
{
|
|
/* Calculate visible region (sans children) in parent window coords */
|
|
r.x = private->x;
|
|
r.y = private->y;
|
|
r.width = private->width;
|
|
r.height = private->height;
|
|
new_clip = cairo_region_create_rectangle (&r);
|
|
|
|
if (!gdk_window_is_toplevel (private))
|
|
{
|
|
cairo_region_intersect (new_clip, private->parent->clip_region);
|
|
|
|
/* Remove all overlapping children from parent.
|
|
* Unless we're all native, because then we don't need to take
|
|
* siblings into account since X does that clipping for us.
|
|
* This makes things like SWT that modify the raw X stacking
|
|
* order without GDKs knowledge work.
|
|
*/
|
|
if (!_gdk_native_windows)
|
|
remove_child_area (private->parent, private, FALSE, new_clip);
|
|
}
|
|
|
|
/* Convert from parent coords to window coords */
|
|
cairo_region_translate (new_clip, -private->x, -private->y);
|
|
|
|
if (private->shape)
|
|
cairo_region_intersect (new_clip, private->shape);
|
|
}
|
|
else
|
|
new_clip = cairo_region_create ();
|
|
|
|
if (private->clip_region == NULL ||
|
|
!cairo_region_equal (private->clip_region, new_clip))
|
|
clip_region_changed = TRUE;
|
|
|
|
if (private->clip_region)
|
|
cairo_region_destroy (private->clip_region);
|
|
private->clip_region = new_clip;
|
|
|
|
old_clip_region_with_children = private->clip_region_with_children;
|
|
private->clip_region_with_children = cairo_region_copy (private->clip_region);
|
|
if (private->window_type != GDK_WINDOW_ROOT)
|
|
remove_child_area (private, NULL, FALSE, private->clip_region_with_children);
|
|
|
|
if (clip_region_changed ||
|
|
!cairo_region_equal (private->clip_region_with_children, old_clip_region_with_children))
|
|
private->clip_tag = new_region_tag ();
|
|
|
|
if (old_clip_region_with_children)
|
|
cairo_region_destroy (old_clip_region_with_children);
|
|
}
|
|
|
|
if (clip_region_changed)
|
|
{
|
|
GdkVisibilityState visibility;
|
|
gboolean fully_visible;
|
|
|
|
if (cairo_region_is_empty (private->clip_region))
|
|
visibility = GDK_VISIBILITY_FULLY_OBSCURED;
|
|
else
|
|
{
|
|
if (private->shape)
|
|
{
|
|
fully_visible = cairo_region_equal (private->clip_region,
|
|
private->shape);
|
|
}
|
|
else
|
|
{
|
|
r.x = 0;
|
|
r.y = 0;
|
|
r.width = private->width;
|
|
r.height = private->height;
|
|
fully_visible = region_rect_equal (private->clip_region, &r);
|
|
}
|
|
|
|
if (fully_visible)
|
|
visibility = GDK_VISIBILITY_UNOBSCURED;
|
|
else
|
|
visibility = GDK_VISIBILITY_PARTIAL;
|
|
}
|
|
|
|
if (private->visibility != visibility)
|
|
{
|
|
private->visibility = visibility;
|
|
gdk_window_update_visibility (private);
|
|
}
|
|
}
|
|
|
|
/* Update all children, recursively (except for root, where children are not exact). */
|
|
if ((abs_pos_changed || clip_region_changed || recalculate_children) &&
|
|
private->window_type != GDK_WINDOW_ROOT)
|
|
{
|
|
for (l = private->children; l; l = l->next)
|
|
{
|
|
child = l->data;
|
|
/* Only recalculate clip if the the clip region changed, otherwise
|
|
* there is no way the child clip region could change (its has not e.g. moved)
|
|
* Except if recalculate_children is set to force child updates
|
|
*/
|
|
recompute_visible_regions_internal (child,
|
|
recalculate_clip && (clip_region_changed || recalculate_children),
|
|
FALSE, FALSE);
|
|
}
|
|
}
|
|
|
|
if (clip_region_changed &&
|
|
should_apply_clip_as_shape (private))
|
|
apply_clip_as_shape (private);
|
|
|
|
if (recalculate_siblings &&
|
|
!gdk_window_is_toplevel (private))
|
|
{
|
|
/* If we moved a child window in parent or changed the stacking order, then we
|
|
* need to recompute the visible area of all the other children in the parent
|
|
*/
|
|
for (l = private->parent->children; l; l = l->next)
|
|
{
|
|
child = l->data;
|
|
|
|
if (child != private)
|
|
recompute_visible_regions_internal (child, TRUE, FALSE, FALSE);
|
|
}
|
|
|
|
/* We also need to recompute the _with_children clip for the parent */
|
|
recompute_visible_regions_internal (private->parent, TRUE, FALSE, FALSE);
|
|
}
|
|
|
|
if (private->cairo_surface)
|
|
{
|
|
int width, height;
|
|
|
|
/* It would be nice if we had some cairo support here so we
|
|
could set the clip rect on the cairo surface */
|
|
width = private->abs_x + private->width;
|
|
height = private->abs_y + private->height;
|
|
|
|
if (_gdk_windowing_set_cairo_surface_size (private->cairo_surface,
|
|
width, height))
|
|
{
|
|
cairo_surface_set_device_offset (private->cairo_surface,
|
|
private->abs_x,
|
|
private->abs_y);
|
|
}
|
|
else
|
|
{
|
|
cairo_surface_destroy (private->cairo_surface);
|
|
private->cairo_surface = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Call this when private has changed in one or more of these ways:
|
|
* size changed
|
|
* window moved
|
|
* new window added
|
|
* stacking order of window changed
|
|
* child deleted
|
|
*
|
|
* It will recalculate abs_x/y and the clip regions
|
|
*
|
|
* Unless the window didn't change stacking order or size/pos, pass in TRUE
|
|
* for recalculate_siblings. (Mostly used internally for the recursion)
|
|
*
|
|
* If a child window was removed (and you can't use that child for
|
|
* recompute_visible_regions), pass in TRUE for recalculate_children on the parent
|
|
*/
|
|
static void
|
|
recompute_visible_regions (GdkWindowObject *private,
|
|
gboolean recalculate_siblings,
|
|
gboolean recalculate_children)
|
|
{
|
|
recompute_visible_regions_internal (private,
|
|
TRUE,
|
|
recalculate_siblings,
|
|
recalculate_children);
|
|
}
|
|
|
|
void
|
|
_gdk_window_update_size (GdkWindow *window)
|
|
{
|
|
recompute_visible_regions ((GdkWindowObject *)window, TRUE, FALSE);
|
|
}
|
|
|
|
/* Find the native window that would be just above "child"
|
|
* in the native stacking order if "child" was a native window
|
|
* (it doesn't have to be native). If there is no such native
|
|
* window inside this native parent then NULL is returned.
|
|
* If child is NULL, find lowest native window in parent.
|
|
*/
|
|
static GdkWindowObject *
|
|
find_native_sibling_above_helper (GdkWindowObject *parent,
|
|
GdkWindowObject *child)
|
|
{
|
|
GdkWindowObject *w;
|
|
GList *l;
|
|
|
|
if (child)
|
|
{
|
|
l = g_list_find (parent->children, child);
|
|
g_assert (l != NULL); /* Better be a child of its parent... */
|
|
l = l->prev; /* Start looking at the one above the child */
|
|
}
|
|
else
|
|
l = g_list_last (parent->children);
|
|
|
|
for (; l != NULL; l = l->prev)
|
|
{
|
|
w = l->data;
|
|
|
|
if (gdk_window_has_impl (w))
|
|
return w;
|
|
|
|
g_assert (parent != w);
|
|
w = find_native_sibling_above_helper (w, NULL);
|
|
if (w)
|
|
return w;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static GdkWindowObject *
|
|
find_native_sibling_above (GdkWindowObject *parent,
|
|
GdkWindowObject *child)
|
|
{
|
|
GdkWindowObject *w;
|
|
|
|
w = find_native_sibling_above_helper (parent, child);
|
|
if (w)
|
|
return w;
|
|
|
|
if (gdk_window_has_impl (parent))
|
|
return NULL;
|
|
else
|
|
return find_native_sibling_above (parent->parent, parent);
|
|
}
|
|
|
|
static GdkEventMask
|
|
get_native_device_event_mask (GdkWindowObject *private,
|
|
GdkDevice *device)
|
|
{
|
|
GdkEventMask event_mask;
|
|
|
|
if (device)
|
|
event_mask = GPOINTER_TO_INT (g_hash_table_lookup (private->device_events, device));
|
|
else
|
|
event_mask = private->event_mask;
|
|
|
|
if (_gdk_native_windows ||
|
|
private->window_type == GDK_WINDOW_ROOT ||
|
|
private->window_type == GDK_WINDOW_FOREIGN)
|
|
return event_mask;
|
|
else
|
|
{
|
|
GdkEventMask mask;
|
|
|
|
/* Do whatever the app asks to, since the app
|
|
* may be asking for weird things for native windows,
|
|
* but don't use motion hints as that may affect non-native
|
|
* child windows that don't want it. Also, we need to
|
|
* set all the app-specified masks since they will be picked
|
|
* up by any implicit grabs (i.e. if they were not set as
|
|
* native we would not get the events we need). */
|
|
mask = private->event_mask & ~GDK_POINTER_MOTION_HINT_MASK;
|
|
|
|
/* We need thse for all native windows so we can
|
|
emulate events on children: */
|
|
mask |=
|
|
GDK_EXPOSURE_MASK |
|
|
GDK_VISIBILITY_NOTIFY_MASK |
|
|
GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK;
|
|
|
|
/* Additionally we select for pointer and button events
|
|
* for toplevels as we need to get these to emulate
|
|
* them for non-native subwindows. Even though we don't
|
|
* select on them for all native windows we will get them
|
|
* as the events are propagated out to the first window
|
|
* that select for them.
|
|
* Not selecting for button press on all windows is an
|
|
* important thing, because in X only one client can do
|
|
* so, and we don't want to unexpectedly prevent another
|
|
* client from doing it.
|
|
*
|
|
* We also need to do the same if the app selects for button presses
|
|
* because then we will get implicit grabs for this window, and the
|
|
* event mask used for that grab is based on the rest of the mask
|
|
* for the window, but we might need more events than this window
|
|
* lists due to some non-native child window.
|
|
*/
|
|
if (gdk_window_is_toplevel (private) ||
|
|
mask & GDK_BUTTON_PRESS_MASK)
|
|
mask |=
|
|
GDK_POINTER_MOTION_MASK |
|
|
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
|
|
GDK_SCROLL_MASK;
|
|
|
|
return mask;
|
|
}
|
|
}
|
|
|
|
static GdkEventMask
|
|
get_native_grab_event_mask (GdkEventMask grab_mask)
|
|
{
|
|
/* Similar to the above but for pointer events only */
|
|
return
|
|
GDK_POINTER_MOTION_MASK |
|
|
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
|
|
GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK |
|
|
GDK_SCROLL_MASK |
|
|
(grab_mask &
|
|
~GDK_POINTER_MOTION_HINT_MASK);
|
|
}
|
|
|
|
static GdkEventMask
|
|
get_native_event_mask (GdkWindowObject *private)
|
|
{
|
|
return get_native_device_event_mask (private, NULL);
|
|
}
|
|
|
|
/* Puts the native window in the right order wrt the other native windows
|
|
* in the hierarchy, given the position it has in the client side data.
|
|
* This is useful if some operation changed the stacking order.
|
|
* This calls assumes the native window is now topmost in its native parent.
|
|
*/
|
|
static void
|
|
sync_native_window_stack_position (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *above;
|
|
GdkWindowObject *private;
|
|
GdkWindowImplIface *impl_iface;
|
|
GList listhead = {0};
|
|
|
|
private = (GdkWindowObject *) window;
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
|
|
above = find_native_sibling_above (private->parent, private);
|
|
if (above)
|
|
{
|
|
listhead.data = window;
|
|
impl_iface->restack_under ((GdkWindow *)above,
|
|
&listhead);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gdk_window_new:
|
|
* @parent: (allow-none): a #GdkWindow, or %NULL to create the window as a child of
|
|
* the default root window for the default display.
|
|
* @attributes: attributes of the new window
|
|
* @attributes_mask: mask indicating which fields in @attributes are valid
|
|
*
|
|
* Creates a new #GdkWindow using the attributes from
|
|
* @attributes. See #GdkWindowAttr and #GdkWindowAttributesType for
|
|
* more details. Note: to use this on displays other than the default
|
|
* display, @parent must be specified.
|
|
*
|
|
* Return value: (transfer none): the new #GdkWindow
|
|
**/
|
|
GdkWindow*
|
|
gdk_window_new (GdkWindow *parent,
|
|
GdkWindowAttr *attributes,
|
|
gint attributes_mask)
|
|
{
|
|
GdkWindow *window;
|
|
GdkWindowObject *private;
|
|
GdkScreen *screen;
|
|
GdkVisual *visual;
|
|
int x, y;
|
|
gboolean native;
|
|
GdkEventMask event_mask;
|
|
GdkWindow *real_parent;
|
|
GdkDeviceManager *device_manager;
|
|
|
|
g_return_val_if_fail (attributes != NULL, NULL);
|
|
|
|
if (!parent)
|
|
{
|
|
GDK_NOTE (MULTIHEAD,
|
|
g_warning ("gdk_window_new(): no parent specified reverting to parent = default root window"));
|
|
|
|
screen = gdk_screen_get_default ();
|
|
parent = gdk_screen_get_root_window (screen);
|
|
}
|
|
else
|
|
screen = gdk_drawable_get_screen (parent);
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (parent), NULL);
|
|
|
|
if (GDK_WINDOW_DESTROYED (parent))
|
|
{
|
|
g_warning ("gdk_window_new(): parent is destroyed\n");
|
|
return NULL;
|
|
}
|
|
|
|
if (attributes->window_type == GDK_WINDOW_OFFSCREEN &&
|
|
_gdk_native_windows)
|
|
{
|
|
g_warning ("Offscreen windows not supported with native-windows gdk");
|
|
return NULL;
|
|
}
|
|
|
|
window = g_object_new (GDK_TYPE_WINDOW, NULL);
|
|
private = (GdkWindowObject *) window;
|
|
|
|
/* Windows with a foreign parent are treated as if they are children
|
|
* of the root window, except for actual creation.
|
|
*/
|
|
real_parent = parent;
|
|
if (GDK_WINDOW_TYPE (parent) == GDK_WINDOW_FOREIGN)
|
|
parent = gdk_screen_get_root_window (screen);
|
|
|
|
private->parent = (GdkWindowObject *)parent;
|
|
|
|
private->accept_focus = TRUE;
|
|
private->focus_on_map = TRUE;
|
|
|
|
if (attributes_mask & GDK_WA_X)
|
|
x = attributes->x;
|
|
else
|
|
x = 0;
|
|
|
|
if (attributes_mask & GDK_WA_Y)
|
|
y = attributes->y;
|
|
else
|
|
y = 0;
|
|
|
|
private->x = x;
|
|
private->y = y;
|
|
private->width = (attributes->width > 1) ? (attributes->width) : (1);
|
|
private->height = (attributes->height > 1) ? (attributes->height) : (1);
|
|
|
|
#ifdef GDK_WINDOWING_X11
|
|
/* Work around a bug where Xorg refuses to map toplevel InputOnly windows
|
|
* from an untrusted client: http://bugs.freedesktop.org/show_bug.cgi?id=6988
|
|
*/
|
|
if (attributes->wclass == GDK_INPUT_ONLY &&
|
|
private->parent->window_type == GDK_WINDOW_ROOT &&
|
|
!G_LIKELY (GDK_DISPLAY_X11 (GDK_WINDOW_DISPLAY (parent))->trusted_client))
|
|
{
|
|
g_warning ("Coercing GDK_INPUT_ONLY toplevel window to GDK_INPUT_OUTPUT to work around bug in Xorg server");
|
|
attributes->wclass = GDK_INPUT_OUTPUT;
|
|
}
|
|
#endif
|
|
|
|
if (attributes->wclass == GDK_INPUT_ONLY)
|
|
{
|
|
/* Backwards compatiblity - we've always ignored
|
|
* attributes->window_type for input-only windows
|
|
* before
|
|
*/
|
|
if (GDK_WINDOW_TYPE (parent) == GDK_WINDOW_ROOT)
|
|
private->window_type = GDK_WINDOW_TEMP;
|
|
else
|
|
private->window_type = GDK_WINDOW_CHILD;
|
|
}
|
|
else
|
|
private->window_type = attributes->window_type;
|
|
|
|
/* Sanity checks */
|
|
switch (private->window_type)
|
|
{
|
|
case GDK_WINDOW_TOPLEVEL:
|
|
case GDK_WINDOW_TEMP:
|
|
case GDK_WINDOW_OFFSCREEN:
|
|
if (GDK_WINDOW_TYPE (parent) != GDK_WINDOW_ROOT)
|
|
g_warning (G_STRLOC "Toplevel windows must be created as children of\n"
|
|
"of a window of type GDK_WINDOW_ROOT or GDK_WINDOW_FOREIGN");
|
|
case GDK_WINDOW_CHILD:
|
|
break;
|
|
break;
|
|
default:
|
|
g_warning (G_STRLOC "cannot make windows of type %d", private->window_type);
|
|
return NULL;
|
|
}
|
|
|
|
if (attributes_mask & GDK_WA_VISUAL)
|
|
visual = attributes->visual;
|
|
else
|
|
visual = gdk_screen_get_system_visual (screen);
|
|
|
|
private->event_mask = attributes->event_mask;
|
|
|
|
if (attributes->wclass == GDK_INPUT_OUTPUT)
|
|
{
|
|
private->input_only = FALSE;
|
|
private->depth = visual->depth;
|
|
|
|
private->bg_color.pixel = 0; /* TODO: BlackPixel (xdisplay, screen_x11->screen_num); */
|
|
private->bg_color.red = private->bg_color.green = private->bg_color.blue = 0;
|
|
|
|
private->bg_pixmap = NULL;
|
|
}
|
|
else
|
|
{
|
|
private->depth = 0;
|
|
private->input_only = TRUE;
|
|
}
|
|
|
|
if (private->parent)
|
|
private->parent->children = g_list_prepend (private->parent->children, window);
|
|
|
|
native = _gdk_native_windows; /* Default */
|
|
if (private->parent->window_type == GDK_WINDOW_ROOT)
|
|
native = TRUE; /* Always use native windows for toplevels */
|
|
else if (!private->input_only &&
|
|
((attributes_mask & GDK_WA_COLORMAP &&
|
|
attributes->colormap != gdk_drawable_get_colormap ((GdkDrawable *)private->parent)) ||
|
|
(attributes_mask & GDK_WA_VISUAL &&
|
|
attributes->visual != gdk_drawable_get_visual ((GdkDrawable *)private->parent))))
|
|
native = TRUE; /* InputOutput window with different colormap or visual than parent, needs native window */
|
|
|
|
if (gdk_window_is_offscreen (private))
|
|
{
|
|
_gdk_offscreen_window_new (window, screen, visual, attributes, attributes_mask);
|
|
private->impl_window = private;
|
|
}
|
|
else if (native)
|
|
{
|
|
event_mask = get_native_event_mask (private);
|
|
|
|
/* Create the impl */
|
|
_gdk_window_impl_new (window, real_parent, screen, visual, event_mask, attributes, attributes_mask);
|
|
private->impl_window = private;
|
|
|
|
/* This will put the native window topmost in the native parent, which may
|
|
* be wrong wrt other native windows in the non-native hierarchy, so restack */
|
|
if (!_gdk_window_has_impl (real_parent))
|
|
sync_native_window_stack_position (window);
|
|
}
|
|
else
|
|
{
|
|
private->impl_window = g_object_ref (private->parent->impl_window);
|
|
private->impl = g_object_ref (private->impl_window->impl);
|
|
}
|
|
|
|
recompute_visible_regions (private, TRUE, FALSE);
|
|
|
|
if (private->parent->window_type != GDK_WINDOW_ROOT)
|
|
{
|
|
/* Inherit redirection from parent */
|
|
private->redirect = private->parent->redirect;
|
|
}
|
|
|
|
gdk_window_set_cursor (window, ((attributes_mask & GDK_WA_CURSOR) ?
|
|
(attributes->cursor) :
|
|
NULL));
|
|
|
|
private->device_cursor = g_hash_table_new_full (NULL, NULL, NULL,
|
|
(GDestroyNotify) gdk_cursor_unref);
|
|
|
|
device_manager = gdk_display_get_device_manager (gdk_drawable_get_display (GDK_DRAWABLE (parent)));
|
|
g_signal_connect (device_manager, "device-removed",
|
|
G_CALLBACK (device_removed_cb), window);
|
|
|
|
return window;
|
|
}
|
|
|
|
static gboolean
|
|
is_parent_of (GdkWindow *parent,
|
|
GdkWindow *child)
|
|
{
|
|
GdkWindow *w;
|
|
|
|
w = child;
|
|
while (w != NULL)
|
|
{
|
|
if (w == parent)
|
|
return TRUE;
|
|
|
|
w = gdk_window_get_parent (w);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
change_impl (GdkWindowObject *private,
|
|
GdkWindowObject *impl_window,
|
|
GdkDrawable *new)
|
|
{
|
|
GList *l;
|
|
GdkWindowObject *child;
|
|
GdkDrawable *old_impl;
|
|
GdkWindowObject *old_impl_window;
|
|
|
|
old_impl = private->impl;
|
|
old_impl_window = private->impl_window;
|
|
if (private != impl_window)
|
|
private->impl_window = g_object_ref (impl_window);
|
|
else
|
|
private->impl_window = private;
|
|
private->impl = g_object_ref (new);
|
|
if (old_impl_window != private)
|
|
g_object_unref (old_impl_window);
|
|
g_object_unref (old_impl);
|
|
|
|
for (l = private->children; l != NULL; l = l->next)
|
|
{
|
|
child = l->data;
|
|
|
|
if (child->impl == old_impl)
|
|
change_impl (child, impl_window, new);
|
|
}
|
|
}
|
|
|
|
static void
|
|
reparent_to_impl (GdkWindowObject *private)
|
|
{
|
|
GList *l;
|
|
GdkWindowObject *child;
|
|
gboolean show;
|
|
GdkWindowImplIface *impl_iface;
|
|
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
|
|
/* Enumerate in reverse order so we get the right order for the native
|
|
windows (first in childrens list is topmost, and reparent places on top) */
|
|
for (l = g_list_last (private->children); l != NULL; l = l->prev)
|
|
{
|
|
child = l->data;
|
|
|
|
if (child->impl == private->impl)
|
|
reparent_to_impl (child);
|
|
else
|
|
{
|
|
show = impl_iface->reparent ((GdkWindow *)child,
|
|
(GdkWindow *)private,
|
|
child->x, child->y);
|
|
if (show)
|
|
gdk_window_show_unraised ((GdkWindow *)child);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* gdk_window_reparent:
|
|
* @window: a #GdkWindow
|
|
* @new_parent: new parent to move @window into
|
|
* @x: X location inside the new parent
|
|
* @y: Y location inside the new parent
|
|
*
|
|
* Reparents @window into the given @new_parent. The window being
|
|
* reparented will be unmapped as a side effect.
|
|
*
|
|
**/
|
|
void
|
|
gdk_window_reparent (GdkWindow *window,
|
|
GdkWindow *new_parent,
|
|
gint x,
|
|
gint y)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkWindowObject *new_parent_private;
|
|
GdkWindowObject *old_parent;
|
|
GdkScreen *screen;
|
|
gboolean show, was_mapped, applied_clip_as_shape;
|
|
gboolean do_reparent_to_impl;
|
|
GdkEventMask old_native_event_mask;
|
|
GdkWindowImplIface *impl_iface;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
g_return_if_fail (new_parent == NULL || GDK_IS_WINDOW (new_parent));
|
|
g_return_if_fail (GDK_WINDOW_TYPE (window) != GDK_WINDOW_ROOT);
|
|
|
|
if (GDK_WINDOW_DESTROYED (window) ||
|
|
(new_parent && GDK_WINDOW_DESTROYED (new_parent)))
|
|
return;
|
|
|
|
screen = gdk_drawable_get_screen (GDK_DRAWABLE (window));
|
|
if (!new_parent)
|
|
new_parent = gdk_screen_get_root_window (screen);
|
|
|
|
private = (GdkWindowObject *) window;
|
|
new_parent_private = (GdkWindowObject *)new_parent;
|
|
|
|
/* No input-output children of input-only windows */
|
|
if (new_parent_private->input_only && !private->input_only)
|
|
return;
|
|
|
|
/* Don't create loops in hierarchy */
|
|
if (is_parent_of (window, new_parent))
|
|
return;
|
|
|
|
/* This might be wrong in the new parent, e.g. for non-native surfaces.
|
|
To make sure we're ok, just wipe it. */
|
|
gdk_window_drop_cairo_surface (private);
|
|
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
old_parent = private->parent;
|
|
|
|
/* Break up redirection if inherited */
|
|
if (private->redirect && private->redirect->redirected != private)
|
|
{
|
|
remove_redirect_from_children (private, private->redirect);
|
|
private->redirect = NULL;
|
|
}
|
|
|
|
was_mapped = GDK_WINDOW_IS_MAPPED (window);
|
|
show = FALSE;
|
|
|
|
/* Reparenting to toplevel. Ensure we have a native window so this can work */
|
|
if (new_parent_private->window_type == GDK_WINDOW_ROOT ||
|
|
new_parent_private->window_type == GDK_WINDOW_FOREIGN)
|
|
gdk_window_ensure_native (window);
|
|
|
|
applied_clip_as_shape = should_apply_clip_as_shape (private);
|
|
|
|
old_native_event_mask = 0;
|
|
do_reparent_to_impl = FALSE;
|
|
if (gdk_window_has_impl (private))
|
|
{
|
|
old_native_event_mask = get_native_event_mask (private);
|
|
/* Native window */
|
|
show = impl_iface->reparent (window, new_parent, x, y);
|
|
}
|
|
else
|
|
{
|
|
/* This shouldn't happen, as we created a native in this case, check anyway to see if that ever fails */
|
|
g_assert (new_parent_private->window_type != GDK_WINDOW_ROOT &&
|
|
new_parent_private->window_type != GDK_WINDOW_FOREIGN);
|
|
|
|
show = was_mapped;
|
|
gdk_window_hide (window);
|
|
|
|
do_reparent_to_impl = TRUE;
|
|
change_impl (private,
|
|
new_parent_private->impl_window,
|
|
new_parent_private->impl);
|
|
}
|
|
|
|
/* From here on, we treat parents of type GDK_WINDOW_FOREIGN like
|
|
* the root window
|
|
*/
|
|
if (GDK_WINDOW_TYPE (new_parent) == GDK_WINDOW_FOREIGN)
|
|
{
|
|
new_parent = gdk_screen_get_root_window (screen);
|
|
new_parent_private = (GdkWindowObject *)new_parent;
|
|
}
|
|
|
|
if (old_parent)
|
|
old_parent->children = g_list_remove (old_parent->children, window);
|
|
|
|
private->parent = new_parent_private;
|
|
private->x = x;
|
|
private->y = y;
|
|
|
|
new_parent_private->children = g_list_prepend (new_parent_private->children, window);
|
|
|
|
/* Switch the window type as appropriate */
|
|
|
|
switch (GDK_WINDOW_TYPE (new_parent))
|
|
{
|
|
case GDK_WINDOW_ROOT:
|
|
case GDK_WINDOW_FOREIGN:
|
|
if (private->toplevel_window_type != -1)
|
|
GDK_WINDOW_TYPE (window) = private->toplevel_window_type;
|
|
else if (GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD)
|
|
GDK_WINDOW_TYPE (window) = GDK_WINDOW_TOPLEVEL;
|
|
break;
|
|
case GDK_WINDOW_OFFSCREEN:
|
|
case GDK_WINDOW_TOPLEVEL:
|
|
case GDK_WINDOW_CHILD:
|
|
case GDK_WINDOW_TEMP:
|
|
if (GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD && \
|
|
GDK_WINDOW_TYPE (window) != GDK_WINDOW_FOREIGN)
|
|
{
|
|
/* Save the original window type so we can restore it if the
|
|
* window is reparented back to be a toplevel
|
|
*/
|
|
private->toplevel_window_type = GDK_WINDOW_TYPE (window);
|
|
GDK_WINDOW_TYPE (window) = GDK_WINDOW_CHILD;
|
|
}
|
|
}
|
|
|
|
/* We might have changed window type for a native windows, so we
|
|
need to change the event mask too. */
|
|
if (gdk_window_has_impl (private))
|
|
{
|
|
GdkEventMask native_event_mask = get_native_event_mask (private);
|
|
|
|
if (native_event_mask != old_native_event_mask)
|
|
impl_iface->set_events (window, native_event_mask);
|
|
}
|
|
|
|
/* Inherit parent redirect if we don't have our own */
|
|
if (private->parent && private->redirect == NULL)
|
|
{
|
|
private->redirect = private->parent->redirect;
|
|
apply_redirect_to_children (private, private->redirect);
|
|
}
|
|
|
|
_gdk_window_update_viewable (window);
|
|
|
|
recompute_visible_regions (private, TRUE, FALSE);
|
|
if (old_parent && GDK_WINDOW_TYPE (old_parent) != GDK_WINDOW_ROOT)
|
|
recompute_visible_regions (old_parent, FALSE, TRUE);
|
|
|
|
/* We used to apply the clip as the shape, but no more.
|
|
Reset this to the real shape */
|
|
if (gdk_window_has_impl (private) &&
|
|
applied_clip_as_shape &&
|
|
!should_apply_clip_as_shape (private))
|
|
apply_shape (private, private->shape);
|
|
|
|
if (do_reparent_to_impl)
|
|
reparent_to_impl (private);
|
|
else
|
|
{
|
|
/* The reparent will have put the native window topmost in the native parent,
|
|
* which may be wrong wrt other native windows in the non-native hierarchy,
|
|
* so restack */
|
|
if (!gdk_window_has_impl (new_parent_private))
|
|
sync_native_window_stack_position (window);
|
|
}
|
|
|
|
if (show)
|
|
gdk_window_show_unraised (window);
|
|
else
|
|
_gdk_synthesize_crossing_events_for_geometry_change (window);
|
|
}
|
|
|
|
static gboolean
|
|
temporary_disable_extension_events (GdkWindowObject *window)
|
|
{
|
|
GdkWindowObject *child;
|
|
GList *l;
|
|
gboolean res;
|
|
|
|
if (window->extension_events != 0)
|
|
{
|
|
g_object_set_data (G_OBJECT (window),
|
|
"gdk-window-extension-events",
|
|
GINT_TO_POINTER (window->extension_events));
|
|
gdk_input_set_extension_events ((GdkWindow *)window, 0,
|
|
GDK_EXTENSION_EVENTS_NONE);
|
|
}
|
|
else
|
|
res = FALSE;
|
|
|
|
for (l = window->children; l != NULL; l = l->next)
|
|
{
|
|
child = l->data;
|
|
|
|
if (window->impl_window == child->impl_window)
|
|
res |= temporary_disable_extension_events (child);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static void
|
|
reenable_extension_events (GdkWindowObject *window)
|
|
{
|
|
GdkWindowObject *child;
|
|
GList *l;
|
|
int mask;
|
|
|
|
mask = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (window),
|
|
"gdk-window-extension-events"));
|
|
|
|
if (mask != 0)
|
|
{
|
|
/* We don't have the mode here, so we pass in cursor.
|
|
This works with the current code since mode is not
|
|
stored except as part of the mask, and cursor doesn't
|
|
change the mask. */
|
|
gdk_input_set_extension_events ((GdkWindow *)window, mask,
|
|
GDK_EXTENSION_EVENTS_CURSOR);
|
|
g_object_set_data (G_OBJECT (window),
|
|
"gdk-window-extension-events",
|
|
NULL);
|
|
}
|
|
|
|
for (l = window->children; l != NULL; l = l->next)
|
|
{
|
|
child = l->data;
|
|
|
|
if (window->impl_window == child->impl_window)
|
|
reenable_extension_events (window);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gdk_window_ensure_native:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Tries to ensure that there is a window-system native window for this
|
|
* GdkWindow. This may fail in some situations, returning %FALSE.
|
|
*
|
|
* Offscreen window and children of them can never have native windows.
|
|
*
|
|
* Some backends may not support native child windows.
|
|
*
|
|
* Returns: %TRUE if the window has a native window, %FALSE otherwise
|
|
*
|
|
* Since: 2.18
|
|
*/
|
|
gboolean
|
|
gdk_window_ensure_native (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkWindowObject *impl_window;
|
|
GdkDrawable *new_impl, *old_impl;
|
|
GdkScreen *screen;
|
|
GdkVisual *visual;
|
|
GdkWindowAttr attributes;
|
|
GdkWindowObject *above;
|
|
GList listhead;
|
|
GdkWindowImplIface *impl_iface;
|
|
gboolean disabled_extension_events;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
|
|
|
if (GDK_WINDOW_TYPE (window) == GDK_WINDOW_ROOT ||
|
|
GDK_WINDOW_DESTROYED (window))
|
|
return FALSE;
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
impl_window = gdk_window_get_impl_window (private);
|
|
|
|
if (gdk_window_is_offscreen (impl_window))
|
|
return FALSE; /* native in offscreens not supported */
|
|
|
|
if (impl_window == private)
|
|
/* Already has an impl, and its not offscreen . */
|
|
return TRUE;
|
|
|
|
/* Need to create a native window */
|
|
|
|
/* First we disable any extension events on the window or its
|
|
descendants to handle the native input window moving */
|
|
disabled_extension_events = FALSE;
|
|
if (impl_window->input_window)
|
|
disabled_extension_events = temporary_disable_extension_events (private);
|
|
|
|
gdk_window_drop_cairo_surface (private);
|
|
|
|
screen = gdk_drawable_get_screen (window);
|
|
visual = gdk_drawable_get_visual (window);
|
|
|
|
attributes.colormap = gdk_drawable_get_colormap (window);
|
|
|
|
old_impl = private->impl;
|
|
_gdk_window_impl_new (window, (GdkWindow *)private->parent,
|
|
screen, visual,
|
|
get_native_event_mask (private),
|
|
&attributes, GDK_WA_COLORMAP);
|
|
new_impl = private->impl;
|
|
|
|
private->impl = old_impl;
|
|
change_impl (private, private, new_impl);
|
|
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
|
|
/* Native window creation will put the native window topmost in the
|
|
* native parent, which may be wrong wrt the position of the previous
|
|
* non-native window wrt to the other non-native children, so correct this.
|
|
*/
|
|
above = find_native_sibling_above (private->parent, private);
|
|
if (above)
|
|
{
|
|
listhead.data = window;
|
|
listhead.prev = NULL;
|
|
listhead.next = NULL;
|
|
impl_iface->restack_under ((GdkWindow *)above, &listhead);
|
|
}
|
|
|
|
recompute_visible_regions (private, FALSE, FALSE);
|
|
|
|
/* The shape may not have been set, as the clip region doesn't actually
|
|
change, so do it here manually */
|
|
if (should_apply_clip_as_shape (private))
|
|
apply_clip_as_shape (private);
|
|
|
|
reparent_to_impl (private);
|
|
|
|
if (!private->input_only)
|
|
{
|
|
impl_iface->set_background (window, &private->bg_color);
|
|
if (private->bg_pixmap != NULL)
|
|
impl_iface->set_back_pixmap (window, private->bg_pixmap);
|
|
}
|
|
|
|
impl_iface->input_shape_combine_region (window,
|
|
private->input_shape,
|
|
0, 0);
|
|
|
|
if (gdk_window_is_viewable (window))
|
|
impl_iface->show (window, FALSE);
|
|
|
|
if (disabled_extension_events)
|
|
reenable_extension_events (private);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
window_remove_filters (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *obj = (GdkWindowObject*) window;
|
|
|
|
if (obj->filters)
|
|
{
|
|
GList *tmp_list;
|
|
|
|
for (tmp_list = obj->filters; tmp_list; tmp_list = tmp_list->next)
|
|
g_free (tmp_list->data);
|
|
|
|
g_list_free (obj->filters);
|
|
obj->filters = NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
update_pointer_info_foreach (GdkDisplay *display,
|
|
GdkDevice *device,
|
|
GdkPointerWindowInfo *pointer_info,
|
|
gpointer user_data)
|
|
{
|
|
GdkWindow *window = user_data;
|
|
|
|
if (pointer_info->toplevel_under_pointer == window)
|
|
{
|
|
g_object_unref (pointer_info->toplevel_under_pointer);
|
|
pointer_info->toplevel_under_pointer = NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
window_remove_from_pointer_info (GdkWindow *window,
|
|
GdkDisplay *display)
|
|
{
|
|
_gdk_display_pointer_info_foreach (display,
|
|
update_pointer_info_foreach,
|
|
window);
|
|
}
|
|
|
|
/**
|
|
* _gdk_window_destroy_hierarchy:
|
|
* @window: a #GdkWindow
|
|
* @recursing: If TRUE, then this is being called because a parent
|
|
* was destroyed.
|
|
* @recursing_native: If TRUE, then this is being called because a native parent
|
|
* was destroyed. This generally means that the call to the
|
|
* windowing system to destroy the window can be omitted, since
|
|
* it will be destroyed as a result of the parent being destroyed.
|
|
* Unless @foreign_destroy.
|
|
* @foreign_destroy: If TRUE, the window or a parent was destroyed by some
|
|
* external agency. The window has already been destroyed and no
|
|
* windowing system calls should be made. (This may never happen
|
|
* for some windowing systems.)
|
|
*
|
|
* Internal function to destroy a window. Like gdk_window_destroy(),
|
|
* but does not drop the reference count created by gdk_window_new().
|
|
**/
|
|
static void
|
|
_gdk_window_destroy_hierarchy (GdkWindow *window,
|
|
gboolean recursing,
|
|
gboolean recursing_native,
|
|
gboolean foreign_destroy)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkWindowObject *temp_private;
|
|
GdkWindowImplIface *impl_iface;
|
|
GdkWindow *temp_window;
|
|
GdkScreen *screen;
|
|
GdkDisplay *display;
|
|
GList *children;
|
|
GList *tmp;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject*) window;
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return;
|
|
|
|
display = gdk_drawable_get_display (GDK_DRAWABLE (window));
|
|
screen = gdk_drawable_get_screen (GDK_DRAWABLE (window));
|
|
temp_window = g_object_get_qdata (G_OBJECT (screen), quark_pointer_window);
|
|
if (temp_window == window)
|
|
g_object_set_qdata (G_OBJECT (screen), quark_pointer_window, NULL);
|
|
|
|
|
|
switch (private->window_type)
|
|
{
|
|
case GDK_WINDOW_ROOT:
|
|
if (!screen->closed)
|
|
{
|
|
g_error ("attempted to destroy root window");
|
|
break;
|
|
}
|
|
/* else fall thru */
|
|
case GDK_WINDOW_TOPLEVEL:
|
|
case GDK_WINDOW_CHILD:
|
|
case GDK_WINDOW_TEMP:
|
|
case GDK_WINDOW_FOREIGN:
|
|
case GDK_WINDOW_OFFSCREEN:
|
|
if (private->window_type == GDK_WINDOW_FOREIGN && !foreign_destroy)
|
|
{
|
|
/* Logically, it probably makes more sense to send
|
|
* a "destroy yourself" message to the foreign window
|
|
* whether or not it's in our hierarchy; but for historical
|
|
* reasons, we only send "destroy yourself" messages to
|
|
* foreign windows in our hierarchy.
|
|
*/
|
|
if (private->parent)
|
|
_gdk_windowing_window_destroy_foreign (window);
|
|
|
|
/* Also for historical reasons, we remove any filters
|
|
* on a foreign window when it or a parent is destroyed;
|
|
* this likely causes problems if two separate portions
|
|
* of code are maintaining filter lists on a foreign window.
|
|
*/
|
|
window_remove_filters (window);
|
|
}
|
|
else
|
|
{
|
|
if (private->parent)
|
|
{
|
|
GdkWindowObject *parent_private = (GdkWindowObject *)private->parent;
|
|
|
|
if (parent_private->children)
|
|
parent_private->children = g_list_remove (parent_private->children, window);
|
|
|
|
if (!recursing &&
|
|
GDK_WINDOW_IS_MAPPED (window))
|
|
{
|
|
recompute_visible_regions (private, TRUE, FALSE);
|
|
gdk_window_invalidate_in_parent (private);
|
|
}
|
|
}
|
|
|
|
gdk_window_free_paint_stack (window);
|
|
|
|
if (private->bg_pixmap &&
|
|
private->bg_pixmap != GDK_PARENT_RELATIVE_BG &&
|
|
private->bg_pixmap != GDK_NO_BG)
|
|
{
|
|
g_object_unref (private->bg_pixmap);
|
|
private->bg_pixmap = NULL;
|
|
}
|
|
|
|
if (private->background)
|
|
{
|
|
cairo_pattern_destroy (private->background);
|
|
private->background = NULL;
|
|
}
|
|
|
|
if (private->window_type == GDK_WINDOW_FOREIGN)
|
|
g_assert (private->children == NULL);
|
|
else
|
|
{
|
|
children = tmp = private->children;
|
|
private->children = NULL;
|
|
|
|
while (tmp)
|
|
{
|
|
temp_window = tmp->data;
|
|
tmp = tmp->next;
|
|
|
|
temp_private = (GdkWindowObject*) temp_window;
|
|
if (temp_private)
|
|
_gdk_window_destroy_hierarchy (temp_window,
|
|
TRUE,
|
|
recursing_native || gdk_window_has_impl (private),
|
|
foreign_destroy);
|
|
}
|
|
|
|
g_list_free (children);
|
|
}
|
|
|
|
_gdk_window_clear_update_area (window);
|
|
|
|
gdk_window_drop_cairo_surface (private);
|
|
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
|
|
if (gdk_window_has_impl (private))
|
|
impl_iface->destroy (window, recursing_native,
|
|
foreign_destroy);
|
|
else
|
|
{
|
|
/* hide to make sure we repaint and break grabs */
|
|
gdk_window_hide (window);
|
|
}
|
|
|
|
private->state |= GDK_WINDOW_STATE_WITHDRAWN;
|
|
private->parent = NULL;
|
|
private->destroyed = TRUE;
|
|
|
|
window_remove_filters (window);
|
|
|
|
gdk_drawable_set_colormap (GDK_DRAWABLE (window), NULL);
|
|
|
|
/* If we own the redirect, free it */
|
|
if (private->redirect && private->redirect->redirected == private)
|
|
gdk_window_redirect_free (private->redirect);
|
|
|
|
private->redirect = NULL;
|
|
|
|
window_remove_from_pointer_info (window, display);
|
|
|
|
if (private->clip_region)
|
|
{
|
|
cairo_region_destroy (private->clip_region);
|
|
private->clip_region = NULL;
|
|
}
|
|
|
|
if (private->clip_region_with_children)
|
|
{
|
|
cairo_region_destroy (private->clip_region_with_children);
|
|
private->clip_region_with_children = NULL;
|
|
}
|
|
|
|
if (private->outstanding_moves)
|
|
{
|
|
g_list_foreach (private->outstanding_moves, (GFunc)gdk_window_region_move_free, NULL);
|
|
g_list_free (private->outstanding_moves);
|
|
private->outstanding_moves = NULL;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* _gdk_window_destroy:
|
|
* @window: a #GdkWindow
|
|
* @foreign_destroy: If TRUE, the window or a parent was destroyed by some
|
|
* external agency. The window has already been destroyed and no
|
|
* windowing system calls should be made. (This may never happen
|
|
* for some windowing systems.)
|
|
*
|
|
* Internal function to destroy a window. Like gdk_window_destroy(),
|
|
* but does not drop the reference count created by gdk_window_new().
|
|
**/
|
|
void
|
|
_gdk_window_destroy (GdkWindow *window,
|
|
gboolean foreign_destroy)
|
|
{
|
|
_gdk_window_destroy_hierarchy (window, FALSE, FALSE, foreign_destroy);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_destroy:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Destroys the window system resources associated with @window and decrements @window's
|
|
* reference count. The window system resources for all children of @window are also
|
|
* destroyed, but the children's reference counts are not decremented.
|
|
*
|
|
* Note that a window will not be destroyed automatically when its reference count
|
|
* reaches zero. You must call this function yourself before that happens.
|
|
*
|
|
**/
|
|
void
|
|
gdk_window_destroy (GdkWindow *window)
|
|
{
|
|
_gdk_window_destroy_hierarchy (window, FALSE, FALSE, FALSE);
|
|
g_object_unref (window);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_set_user_data:
|
|
* @window: a #GdkWindow
|
|
* @user_data: user data
|
|
*
|
|
* For most purposes this function is deprecated in favor of
|
|
* g_object_set_data(). However, for historical reasons GTK+ stores
|
|
* the #GtkWidget that owns a #GdkWindow as user data on the
|
|
* #GdkWindow. So, custom widget implementations should use
|
|
* this function for that. If GTK+ receives an event for a #GdkWindow,
|
|
* and the user data for the window is non-%NULL, GTK+ will assume the
|
|
* user data is a #GtkWidget, and forward the event to that widget.
|
|
*
|
|
**/
|
|
void
|
|
gdk_window_set_user_data (GdkWindow *window,
|
|
gpointer user_data)
|
|
{
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
((GdkWindowObject*)window)->user_data = user_data;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_user_data:
|
|
* @window: a #GdkWindow
|
|
* @data: return location for user data
|
|
*
|
|
* Retrieves the user data for @window, which is normally the widget
|
|
* that @window belongs to. See gdk_window_set_user_data().
|
|
*
|
|
**/
|
|
void
|
|
gdk_window_get_user_data (GdkWindow *window,
|
|
gpointer *data)
|
|
{
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
*data = ((GdkWindowObject*)window)->user_data;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_window_type:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Gets the type of the window. See #GdkWindowType.
|
|
*
|
|
* Return value: type of window
|
|
**/
|
|
GdkWindowType
|
|
gdk_window_get_window_type (GdkWindow *window)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), (GdkWindowType) -1);
|
|
|
|
return GDK_WINDOW_TYPE (window);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_is_destroyed:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Check to see if a window is destroyed..
|
|
*
|
|
* Return value: %TRUE if the window is destroyed
|
|
*
|
|
* Since: 2.18
|
|
**/
|
|
gboolean
|
|
gdk_window_is_destroyed (GdkWindow *window)
|
|
{
|
|
return GDK_WINDOW_DESTROYED (window);
|
|
}
|
|
|
|
static void
|
|
to_embedder (GdkWindowObject *window,
|
|
gdouble offscreen_x,
|
|
gdouble offscreen_y,
|
|
gdouble *embedder_x,
|
|
gdouble *embedder_y)
|
|
{
|
|
g_signal_emit (window, signals[TO_EMBEDDER], 0,
|
|
offscreen_x, offscreen_y,
|
|
embedder_x, embedder_y);
|
|
}
|
|
|
|
static void
|
|
from_embedder (GdkWindowObject *window,
|
|
gdouble embedder_x,
|
|
gdouble embedder_y,
|
|
gdouble *offscreen_x,
|
|
gdouble *offscreen_y)
|
|
{
|
|
g_signal_emit (window, signals[FROM_EMBEDDER], 0,
|
|
embedder_x, embedder_y,
|
|
offscreen_x, offscreen_y);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_has_native:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Checks whether the window has a native window or not. Note that
|
|
* you can use gdk_window_ensure_native() if a native window is needed.
|
|
*
|
|
* Returns: %TRUE if the %window has a native window, %FALSE otherwise.
|
|
*
|
|
* Since: 2.22
|
|
*/
|
|
gboolean
|
|
gdk_window_has_native (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *w;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
|
|
|
w = GDK_WINDOW_OBJECT (window);
|
|
|
|
return w->parent == NULL || w->parent->impl != w->impl;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_position:
|
|
* @window: a #GdkWindow
|
|
* @x: X coordinate of window
|
|
* @y: Y coordinate of window
|
|
*
|
|
* Obtains the position of the window as reported in the
|
|
* most-recently-processed #GdkEventConfigure. Contrast with
|
|
* gdk_window_get_geometry() which queries the X server for the
|
|
* current window position, regardless of which events have been
|
|
* received or processed.
|
|
*
|
|
* The position coordinates are relative to the window's parent window.
|
|
*
|
|
**/
|
|
void
|
|
gdk_window_get_position (GdkWindow *window,
|
|
gint *x,
|
|
gint *y)
|
|
{
|
|
GdkWindowObject *obj;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
obj = (GdkWindowObject*) window;
|
|
|
|
if (x)
|
|
*x = obj->x;
|
|
if (y)
|
|
*y = obj->y;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_parent:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Obtains the parent of @window, as known to GDK. Does not query the
|
|
* X server; thus this returns the parent as passed to gdk_window_new(),
|
|
* not the actual parent. This should never matter unless you're using
|
|
* Xlib calls mixed with GDK calls on the X11 platform. It may also
|
|
* matter for toplevel windows, because the window manager may choose
|
|
* to reparent them.
|
|
*
|
|
* Note that you should use gdk_window_get_effective_parent() when
|
|
* writing generic code that walks up a window hierarchy, because
|
|
* gdk_window_get_parent() will most likely not do what you expect if
|
|
* there are offscreen windows in the hierarchy.
|
|
*
|
|
* Return value: parent of @window
|
|
**/
|
|
GdkWindow*
|
|
gdk_window_get_parent (GdkWindow *window)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
|
|
|
return (GdkWindow*) ((GdkWindowObject*) window)->parent;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_effective_parent:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Obtains the parent of @window, as known to GDK. Works like
|
|
* gdk_window_get_parent() for normal windows, but returns the
|
|
* window's embedder for offscreen windows.
|
|
*
|
|
* See also: gdk_offscreen_window_get_embedder()
|
|
*
|
|
* Return value: effective parent of @window
|
|
*
|
|
* Since: 2.22
|
|
**/
|
|
GdkWindow *
|
|
gdk_window_get_effective_parent (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *obj;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
|
|
|
obj = (GdkWindowObject *)window;
|
|
|
|
if (gdk_window_is_offscreen (obj))
|
|
return gdk_offscreen_window_get_embedder (window);
|
|
else
|
|
return (GdkWindow *) obj->parent;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_toplevel:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Gets the toplevel window that's an ancestor of @window.
|
|
*
|
|
* Any window type but %GDK_WINDOW_CHILD is considered a
|
|
* toplevel window, as is a %GDK_WINDOW_CHILD window that
|
|
* has a root window as parent.
|
|
*
|
|
* Note that you should use gdk_window_get_effective_toplevel() when
|
|
* you want to get to a window's toplevel as seen on screen, because
|
|
* gdk_window_get_toplevel() will most likely not do what you expect
|
|
* if there are offscreen windows in the hierarchy.
|
|
*
|
|
* Return value: the toplevel window containing @window
|
|
**/
|
|
GdkWindow *
|
|
gdk_window_get_toplevel (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *obj;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
|
|
|
obj = (GdkWindowObject *)window;
|
|
|
|
while (obj->window_type == GDK_WINDOW_CHILD)
|
|
{
|
|
if (gdk_window_is_toplevel (obj))
|
|
break;
|
|
obj = obj->parent;
|
|
}
|
|
|
|
return GDK_WINDOW (obj);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_effective_toplevel:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Gets the toplevel window that's an ancestor of @window.
|
|
*
|
|
* Works like gdk_window_get_toplevel(), but treats an offscreen window's
|
|
* embedder as its parent, using gdk_window_get_effective_parent().
|
|
*
|
|
* See also: gdk_offscreen_window_get_embedder()
|
|
*
|
|
* Return value: the effective toplevel window containing @window
|
|
*
|
|
* Since: 2.22
|
|
**/
|
|
GdkWindow *
|
|
gdk_window_get_effective_toplevel (GdkWindow *window)
|
|
{
|
|
GdkWindow *parent;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
|
|
|
while ((parent = gdk_window_get_effective_parent (window)) != NULL &&
|
|
(gdk_window_get_window_type (parent) != GDK_WINDOW_ROOT))
|
|
window = parent;
|
|
|
|
return window;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_children:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Gets the list of children of @window known to GDK.
|
|
* This function only returns children created via GDK,
|
|
* so for example it's useless when used with the root window;
|
|
* it only returns windows an application created itself.
|
|
*
|
|
* The returned list must be freed, but the elements in the
|
|
* list need not be.
|
|
*
|
|
* Return value: list of child windows inside @window
|
|
**/
|
|
GList*
|
|
gdk_window_get_children (GdkWindow *window)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return NULL;
|
|
|
|
return g_list_copy (GDK_WINDOW_OBJECT (window)->children);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_peek_children:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Like gdk_window_get_children(), but does not copy the list of
|
|
* children, so the list does not need to be freed.
|
|
*
|
|
* Return value: a reference to the list of child windows in @window
|
|
**/
|
|
GList *
|
|
gdk_window_peek_children (GdkWindow *window)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return NULL;
|
|
|
|
return GDK_WINDOW_OBJECT (window)->children;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_add_filter:
|
|
* @window: a #GdkWindow
|
|
* @function: filter callback
|
|
* @data: data to pass to filter callback
|
|
*
|
|
* Adds an event filter to @window, allowing you to intercept events
|
|
* before they reach GDK. This is a low-level operation and makes it
|
|
* easy to break GDK and/or GTK+, so you have to know what you're
|
|
* doing. Pass %NULL for @window to get all events for all windows,
|
|
* instead of events for a specific window.
|
|
*
|
|
* See gdk_display_add_client_message_filter() if you are interested
|
|
* in X ClientMessage events.
|
|
**/
|
|
void
|
|
gdk_window_add_filter (GdkWindow *window,
|
|
GdkFilterFunc function,
|
|
gpointer data)
|
|
{
|
|
GdkWindowObject *private;
|
|
GList *tmp_list;
|
|
GdkEventFilter *filter;
|
|
|
|
g_return_if_fail (window == NULL || GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject*) window;
|
|
if (private && GDK_WINDOW_DESTROYED (window))
|
|
return;
|
|
|
|
/* Filters are for the native events on the native window, so
|
|
ensure there is a native window. */
|
|
if (window)
|
|
gdk_window_ensure_native (window);
|
|
|
|
if (private)
|
|
tmp_list = private->filters;
|
|
else
|
|
tmp_list = _gdk_default_filters;
|
|
|
|
while (tmp_list)
|
|
{
|
|
filter = (GdkEventFilter *)tmp_list->data;
|
|
if ((filter->function == function) && (filter->data == data))
|
|
return;
|
|
tmp_list = tmp_list->next;
|
|
}
|
|
|
|
filter = g_new (GdkEventFilter, 1);
|
|
filter->function = function;
|
|
filter->data = data;
|
|
|
|
if (private)
|
|
private->filters = g_list_append (private->filters, filter);
|
|
else
|
|
_gdk_default_filters = g_list_append (_gdk_default_filters, filter);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_remove_filter:
|
|
* @window: a #GdkWindow
|
|
* @function: previously-added filter function
|
|
* @data: user data for previously-added filter function
|
|
*
|
|
* Remove a filter previously added with gdk_window_add_filter().
|
|
*
|
|
**/
|
|
void
|
|
gdk_window_remove_filter (GdkWindow *window,
|
|
GdkFilterFunc function,
|
|
gpointer data)
|
|
{
|
|
GdkWindowObject *private;
|
|
GList *tmp_list, *node;
|
|
GdkEventFilter *filter;
|
|
|
|
g_return_if_fail (window == NULL || GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject*) window;
|
|
|
|
if (private)
|
|
tmp_list = private->filters;
|
|
else
|
|
tmp_list = _gdk_default_filters;
|
|
|
|
while (tmp_list)
|
|
{
|
|
filter = (GdkEventFilter *)tmp_list->data;
|
|
node = tmp_list;
|
|
tmp_list = tmp_list->next;
|
|
|
|
if ((filter->function == function) && (filter->data == data))
|
|
{
|
|
if (private)
|
|
private->filters = g_list_remove_link (private->filters, node);
|
|
else
|
|
_gdk_default_filters = g_list_remove_link (_gdk_default_filters, node);
|
|
g_list_free_1 (node);
|
|
g_free (filter);
|
|
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gdk_screen_get_toplevel_windows:
|
|
* @screen: The #GdkScreen where the toplevels are located.
|
|
*
|
|
* Obtains a list of all toplevel windows known to GDK on the screen @screen.
|
|
* A toplevel window is a child of the root window (see
|
|
* gdk_get_default_root_window()).
|
|
*
|
|
* The returned list should be freed with g_list_free(), but
|
|
* its elements need not be freed.
|
|
*
|
|
* Return value: list of toplevel windows, free with g_list_free()
|
|
*
|
|
* Since: 2.2
|
|
**/
|
|
GList *
|
|
gdk_screen_get_toplevel_windows (GdkScreen *screen)
|
|
{
|
|
GdkWindow * root_window;
|
|
GList *new_list = NULL;
|
|
GList *tmp_list;
|
|
|
|
g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
|
|
|
|
root_window = gdk_screen_get_root_window (screen);
|
|
|
|
tmp_list = ((GdkWindowObject *)root_window)->children;
|
|
while (tmp_list)
|
|
{
|
|
GdkWindowObject *w = tmp_list->data;
|
|
|
|
if (w->window_type != GDK_WINDOW_FOREIGN)
|
|
new_list = g_list_prepend (new_list, w);
|
|
tmp_list = tmp_list->next;
|
|
}
|
|
|
|
return new_list;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_is_visible:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Checks whether the window has been mapped (with gdk_window_show() or
|
|
* gdk_window_show_unraised()).
|
|
*
|
|
* Return value: %TRUE if the window is mapped
|
|
**/
|
|
gboolean
|
|
gdk_window_is_visible (GdkWindow *window)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
|
|
|
return GDK_WINDOW_IS_MAPPED (window);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_is_viewable:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Check if the window and all ancestors of the window are
|
|
* mapped. (This is not necessarily "viewable" in the X sense, since
|
|
* we only check as far as we have GDK window parents, not to the root
|
|
* window.)
|
|
*
|
|
* Return value: %TRUE if the window is viewable
|
|
**/
|
|
gboolean
|
|
gdk_window_is_viewable (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
|
|
|
if (private->destroyed)
|
|
return FALSE;
|
|
|
|
return private->viewable;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_state:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Gets the bitwise OR of the currently active window state flags,
|
|
* from the #GdkWindowState enumeration.
|
|
*
|
|
* Return value: window state bitfield
|
|
**/
|
|
GdkWindowState
|
|
gdk_window_get_state (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
|
|
|
return private->state;
|
|
}
|
|
|
|
|
|
/* This creates an empty "implicit" paint region for the impl window.
|
|
* By itself this does nothing, but real paints to this window
|
|
* or children of it can use this pixmap as backing to avoid allocating
|
|
* multiple pixmaps for subwindow rendering. When doing so they
|
|
* add to the region of the implicit paint region, which will be
|
|
* pushed to the window when the implicit paint region is ended.
|
|
* Such paints should not copy anything to the window on paint end, but
|
|
* should rely on the implicit paint end.
|
|
* The implicit paint will be automatically ended if someone draws
|
|
* directly to the window or a child window.
|
|
*/
|
|
static gboolean
|
|
gdk_window_begin_implicit_paint (GdkWindow *window, GdkRectangle *rect)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkWindowPaint *paint;
|
|
|
|
g_assert (gdk_window_has_impl (private));
|
|
|
|
if (_gdk_native_windows)
|
|
return FALSE; /* No need for implicit paints since we can't merge draws anyway */
|
|
|
|
if (GDK_IS_PAINTABLE (private->impl))
|
|
return FALSE; /* Implementation does double buffering */
|
|
|
|
if (private->paint_stack != NULL ||
|
|
private->implicit_paint != NULL)
|
|
return FALSE; /* Don't stack implicit paints */
|
|
|
|
if (private->outstanding_surfaces != 0)
|
|
return FALSE; /* May conflict with direct drawing to cairo surface */
|
|
|
|
/* Never do implicit paints for foreign windows, 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
|
|
*/
|
|
if (private->window_type == GDK_WINDOW_FOREIGN)
|
|
return FALSE;
|
|
|
|
paint = g_new (GdkWindowPaint, 1);
|
|
paint->region = cairo_region_create (); /* Empty */
|
|
paint->x_offset = rect->x;
|
|
paint->y_offset = rect->y;
|
|
paint->uses_implicit = FALSE;
|
|
paint->flushed = FALSE;
|
|
paint->surface = NULL;
|
|
paint->pixmap =
|
|
gdk_pixmap_new (window,
|
|
MAX (rect->width, 1), MAX (rect->height, 1), -1);
|
|
|
|
private->implicit_paint = paint;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Ensure that all content related to this (sub)window is pushed to the
|
|
native region. If there is an active paint then that area is not
|
|
pushed, in order to not show partially finished double buffers. */
|
|
static void
|
|
gdk_window_flush_implicit_paint (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkWindowObject *impl_window;
|
|
GdkWindowPaint *paint;
|
|
cairo_region_t *region;
|
|
GSList *list;
|
|
|
|
impl_window = gdk_window_get_impl_window (private);
|
|
if (impl_window->implicit_paint == NULL)
|
|
return;
|
|
|
|
paint = impl_window->implicit_paint;
|
|
paint->flushed = TRUE;
|
|
region = cairo_region_copy (private->clip_region_with_children);
|
|
|
|
/* Don't flush active double buffers, as that may show partially done
|
|
* rendering */
|
|
for (list = private->paint_stack; list != NULL; list = list->next)
|
|
{
|
|
GdkWindowPaint *tmp_paint = list->data;
|
|
|
|
cairo_region_subtract (region, tmp_paint->region);
|
|
}
|
|
|
|
cairo_region_translate (region, private->abs_x, private->abs_y);
|
|
cairo_region_intersect (region, paint->region);
|
|
|
|
if (!GDK_WINDOW_DESTROYED (window) && !cairo_region_is_empty (region))
|
|
{
|
|
cairo_t *cr;
|
|
|
|
/* Remove flushed region from the implicit paint */
|
|
cairo_region_subtract (paint->region, region);
|
|
|
|
/* Some regions are valid, push these to window now */
|
|
cr = gdk_cairo_create (private->impl);
|
|
gdk_cairo_set_source_pixmap (cr, paint->pixmap,
|
|
paint->x_offset, paint->y_offset);
|
|
gdk_cairo_region (cr, region);
|
|
cairo_fill (cr);
|
|
cairo_destroy (cr);
|
|
}
|
|
|
|
cairo_region_destroy (region);
|
|
}
|
|
|
|
/* Ends an implicit paint, paired with gdk_window_begin_implicit_paint returning TRUE */
|
|
static void
|
|
gdk_window_end_implicit_paint (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkWindowPaint *paint;
|
|
|
|
g_assert (gdk_window_has_impl (private));
|
|
|
|
g_assert (private->implicit_paint != NULL);
|
|
|
|
paint = private->implicit_paint;
|
|
|
|
private->implicit_paint = NULL;
|
|
|
|
if (!GDK_WINDOW_DESTROYED (window) && !cairo_region_is_empty (paint->region))
|
|
{
|
|
cairo_t *cr;
|
|
|
|
/* Some regions are valid, push these to window now */
|
|
cr = gdk_cairo_create (private->impl);
|
|
gdk_cairo_region (cr, paint->region);
|
|
cairo_clip (cr);
|
|
gdk_cairo_set_source_pixmap (cr, paint->pixmap,
|
|
paint->x_offset, paint->y_offset);
|
|
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
|
|
cairo_paint (cr);
|
|
cairo_destroy (cr);
|
|
}
|
|
|
|
cairo_region_destroy (paint->region);
|
|
|
|
g_object_unref (paint->pixmap);
|
|
g_free (paint);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_begin_paint_rect:
|
|
* @window: a #GdkWindow
|
|
* @rectangle: rectangle you intend to draw to
|
|
*
|
|
* A convenience wrapper around gdk_window_begin_paint_region() which
|
|
* creates a rectangular region for you. See
|
|
* gdk_window_begin_paint_region() for details.
|
|
*
|
|
**/
|
|
void
|
|
gdk_window_begin_paint_rect (GdkWindow *window,
|
|
const GdkRectangle *rectangle)
|
|
{
|
|
cairo_region_t *region;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
region = cairo_region_create_rectangle (rectangle);
|
|
gdk_window_begin_paint_region (window, region);
|
|
cairo_region_destroy (region);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_begin_paint_region:
|
|
* @window: a #GdkWindow
|
|
* @region: region you intend to draw to
|
|
*
|
|
* Indicates that you are beginning the process of redrawing @region.
|
|
* A backing store (offscreen buffer) large enough to contain @region
|
|
* will be created. The backing store will be initialized with the
|
|
* background color or background pixmap for @window. Then, all
|
|
* drawing operations performed on @window will be diverted to the
|
|
* backing store. When you call gdk_window_end_paint(), the backing
|
|
* store will be copied to @window, making it visible onscreen. Only
|
|
* the part of @window contained in @region will be modified; that is,
|
|
* drawing operations are clipped to @region.
|
|
*
|
|
* The net result of all this is to remove flicker, because the user
|
|
* sees the finished product appear all at once when you call
|
|
* gdk_window_end_paint(). If you draw to @window directly without
|
|
* calling gdk_window_begin_paint_region(), the user may see flicker
|
|
* as individual drawing operations are performed in sequence. The
|
|
* clipping and background-initializing features of
|
|
* gdk_window_begin_paint_region() are conveniences for the
|
|
* programmer, so you can avoid doing that work yourself.
|
|
*
|
|
* When using GTK+, the widget system automatically places calls to
|
|
* gdk_window_begin_paint_region() and gdk_window_end_paint() around
|
|
* emissions of the expose_event signal. That is, if you're writing an
|
|
* expose event handler, you can assume that the exposed area in
|
|
* #GdkEventExpose has already been cleared to the window background,
|
|
* is already set as the clip region, and already has a backing store.
|
|
* Therefore in most cases, application code need not call
|
|
* gdk_window_begin_paint_region(). (You can disable the automatic
|
|
* calls around expose events on a widget-by-widget basis by calling
|
|
* gtk_widget_set_double_buffered().)
|
|
*
|
|
* If you call this function multiple times before calling the
|
|
* matching gdk_window_end_paint(), the backing stores are pushed onto
|
|
* a stack. gdk_window_end_paint() copies the topmost backing store
|
|
* onscreen, subtracts the topmost region from all other regions in
|
|
* the stack, and pops the stack. All drawing operations affect only
|
|
* the topmost backing store in the stack. One matching call to
|
|
* gdk_window_end_paint() is required for each call to
|
|
* gdk_window_begin_paint_region().
|
|
*
|
|
**/
|
|
void
|
|
gdk_window_begin_paint_region (GdkWindow *window,
|
|
const cairo_region_t *region)
|
|
{
|
|
#ifdef USE_BACKING_STORE
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkRectangle clip_box;
|
|
GdkWindowPaint *paint, *implicit_paint;
|
|
GdkWindowObject *impl_window;
|
|
GSList *list;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return;
|
|
|
|
if (GDK_IS_PAINTABLE (private->impl))
|
|
{
|
|
GdkPaintableIface *iface = GDK_PAINTABLE_GET_IFACE (private->impl);
|
|
|
|
if (iface->begin_paint_region)
|
|
iface->begin_paint_region ((GdkPaintable*)private->impl, window, region);
|
|
|
|
return;
|
|
}
|
|
|
|
impl_window = gdk_window_get_impl_window (private);
|
|
implicit_paint = impl_window->implicit_paint;
|
|
|
|
paint = g_new (GdkWindowPaint, 1);
|
|
paint->region = cairo_region_copy (region);
|
|
paint->region_tag = new_region_tag ();
|
|
|
|
cairo_region_intersect (paint->region, private->clip_region_with_children);
|
|
cairo_region_get_extents (paint->region, &clip_box);
|
|
|
|
/* Convert to impl coords */
|
|
cairo_region_translate (paint->region, private->abs_x, private->abs_y);
|
|
|
|
/* Mark the region as valid on the implicit paint */
|
|
|
|
if (implicit_paint)
|
|
cairo_region_union (implicit_paint->region, paint->region);
|
|
|
|
/* Convert back to normal coords */
|
|
cairo_region_translate (paint->region, -private->abs_x, -private->abs_y);
|
|
|
|
if (implicit_paint)
|
|
{
|
|
int width, height;
|
|
|
|
paint->uses_implicit = TRUE;
|
|
paint->pixmap = g_object_ref (implicit_paint->pixmap);
|
|
paint->x_offset = -private->abs_x + implicit_paint->x_offset;
|
|
paint->y_offset = -private->abs_y + implicit_paint->y_offset;
|
|
|
|
gdk_drawable_get_size (paint->pixmap, &width, &height);
|
|
paint->surface = _gdk_drawable_create_cairo_surface (paint->pixmap, width, height);
|
|
}
|
|
else
|
|
{
|
|
paint->uses_implicit = FALSE;
|
|
paint->x_offset = clip_box.x;
|
|
paint->y_offset = clip_box.y;
|
|
paint->pixmap =
|
|
gdk_pixmap_new (window,
|
|
MAX (clip_box.width, 1), MAX (clip_box.height, 1), -1);
|
|
paint->surface = _gdk_drawable_ref_cairo_surface (paint->pixmap);
|
|
}
|
|
|
|
if (paint->surface)
|
|
cairo_surface_set_device_offset (paint->surface,
|
|
-paint->x_offset, -paint->y_offset);
|
|
|
|
for (list = private->paint_stack; list != NULL; list = list->next)
|
|
{
|
|
GdkWindowPaint *tmp_paint = list->data;
|
|
|
|
cairo_region_subtract (tmp_paint->region, paint->region);
|
|
}
|
|
|
|
private->paint_stack = g_slist_prepend (private->paint_stack, paint);
|
|
|
|
if (!cairo_region_is_empty (paint->region))
|
|
{
|
|
gdk_window_clear_backing_region (window,
|
|
paint->region);
|
|
}
|
|
|
|
#endif /* USE_BACKING_STORE */
|
|
}
|
|
|
|
static cairo_region_t *
|
|
setup_redirect_clip (GdkWindow *window,
|
|
int *x_offset_out,
|
|
int *y_offset_out)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
cairo_region_t *visible_region;
|
|
GdkRectangle dest_rect;
|
|
GdkWindow *toplevel;
|
|
int x_offset, y_offset;
|
|
|
|
toplevel = GDK_WINDOW (private->redirect->redirected);
|
|
|
|
/* Get the clip region for gc clip rect + window hierarchy in
|
|
window relative coords */
|
|
visible_region =
|
|
_gdk_window_calculate_full_clip_region (window, toplevel,
|
|
TRUE,
|
|
&x_offset,
|
|
&y_offset);
|
|
|
|
/* Compensate for the source pos/size */
|
|
x_offset -= private->redirect->src_x;
|
|
y_offset -= private->redirect->src_y;
|
|
dest_rect.x = -x_offset;
|
|
dest_rect.y = -y_offset;
|
|
dest_rect.width = private->redirect->width;
|
|
dest_rect.height = private->redirect->height;
|
|
cairo_region_intersect_rectangle (visible_region, &dest_rect);
|
|
|
|
/* Compensate for the dest pos */
|
|
x_offset += private->redirect->dest_x;
|
|
y_offset += private->redirect->dest_y;
|
|
|
|
*x_offset_out = x_offset;
|
|
*y_offset_out = y_offset;
|
|
|
|
return visible_region;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_end_paint:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Indicates that the backing store created by the most recent call to
|
|
* gdk_window_begin_paint_region() should be copied onscreen and
|
|
* deleted, leaving the next-most-recent backing store or no backing
|
|
* store at all as the active paint region. See
|
|
* gdk_window_begin_paint_region() for full details. It is an error to
|
|
* call this function without a matching
|
|
* gdk_window_begin_paint_region() first.
|
|
*
|
|
**/
|
|
void
|
|
gdk_window_end_paint (GdkWindow *window)
|
|
{
|
|
#ifdef USE_BACKING_STORE
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkWindowObject *composited;
|
|
GdkWindowPaint *paint;
|
|
GdkRectangle clip_box;
|
|
cairo_region_t *full_clip;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return;
|
|
|
|
if (GDK_IS_PAINTABLE (private->impl))
|
|
{
|
|
GdkPaintableIface *iface = GDK_PAINTABLE_GET_IFACE (private->impl);
|
|
|
|
if (iface->end_paint)
|
|
iface->end_paint ((GdkPaintable*)private->impl);
|
|
return;
|
|
}
|
|
|
|
if (private->paint_stack == NULL)
|
|
{
|
|
g_warning (G_STRLOC": no preceding call to gdk_window_begin_paint_region(), see documentation");
|
|
return;
|
|
}
|
|
|
|
paint = private->paint_stack->data;
|
|
|
|
private->paint_stack = g_slist_delete_link (private->paint_stack,
|
|
private->paint_stack);
|
|
|
|
cairo_region_get_extents (paint->region, &clip_box);
|
|
|
|
if (!paint->uses_implicit)
|
|
{
|
|
cairo_t *cr;
|
|
|
|
gdk_window_flush_outstanding_moves (window);
|
|
|
|
full_clip = cairo_region_copy (private->clip_region_with_children);
|
|
cairo_region_intersect (full_clip, paint->region);
|
|
|
|
cr = gdk_cairo_create (private->impl);
|
|
gdk_cairo_set_source_pixmap (cr, paint->pixmap, 0, 0);
|
|
cairo_translate (cr, private->abs_x, private->abs_y);
|
|
gdk_cairo_region (cr, full_clip);
|
|
cairo_fill (cr);
|
|
|
|
cairo_destroy (cr);
|
|
cairo_region_destroy (full_clip);
|
|
}
|
|
|
|
if (private->redirect)
|
|
{
|
|
int x_offset, y_offset;
|
|
cairo_region_t *region;
|
|
cairo_t *cr;
|
|
|
|
/* TODO: Should also use paint->region for clipping */
|
|
region = setup_redirect_clip (window, &x_offset, &y_offset);
|
|
|
|
cr = gdk_cairo_create (private->redirect->pixmap);
|
|
|
|
cairo_translate (cr, x_offset, y_offset);
|
|
gdk_cairo_set_source_pixmap (cr, paint->pixmap, 0, 0);
|
|
gdk_cairo_region (cr, region);
|
|
cairo_fill (cr);
|
|
|
|
cairo_destroy (cr);
|
|
cairo_region_destroy (region);
|
|
}
|
|
|
|
cairo_surface_destroy (paint->surface);
|
|
g_object_unref (paint->pixmap);
|
|
cairo_region_destroy (paint->region);
|
|
g_free (paint);
|
|
|
|
/* find a composited window in our hierarchy to signal its
|
|
* parent to redraw, calculating the clip box as we go...
|
|
*
|
|
* stop if parent becomes NULL since then we'd have nowhere
|
|
* to draw (ie: 'composited' will always be non-NULL here).
|
|
*/
|
|
for (composited = private;
|
|
composited->parent;
|
|
composited = composited->parent)
|
|
{
|
|
int width, height;
|
|
|
|
gdk_drawable_get_size (GDK_DRAWABLE (composited->parent),
|
|
&width, &height);
|
|
|
|
clip_box.x += composited->x;
|
|
clip_box.y += composited->y;
|
|
clip_box.width = MIN (clip_box.width, width - clip_box.x);
|
|
clip_box.height = MIN (clip_box.height, height - clip_box.y);
|
|
|
|
if (composited->composited)
|
|
{
|
|
gdk_window_invalidate_rect (GDK_WINDOW (composited->parent),
|
|
&clip_box, FALSE);
|
|
break;
|
|
}
|
|
}
|
|
#endif /* USE_BACKING_STORE */
|
|
}
|
|
|
|
static void
|
|
gdk_window_free_paint_stack (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
|
|
if (private->paint_stack)
|
|
{
|
|
GSList *tmp_list = private->paint_stack;
|
|
|
|
while (tmp_list)
|
|
{
|
|
GdkWindowPaint *paint = tmp_list->data;
|
|
|
|
if (tmp_list == private->paint_stack)
|
|
g_object_unref (paint->pixmap);
|
|
|
|
cairo_region_destroy (paint->region);
|
|
g_free (paint);
|
|
|
|
tmp_list = tmp_list->next;
|
|
}
|
|
|
|
g_slist_free (private->paint_stack);
|
|
private->paint_stack = NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
do_move_region_bits_on_impl (GdkWindowObject *impl_window,
|
|
cairo_region_t *dest_region, /* In impl window coords */
|
|
int dx, int dy)
|
|
{
|
|
GdkWindowImplIface *impl_iface;
|
|
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (impl_window->impl);
|
|
|
|
impl_iface->translate ((GdkWindow *) impl_window, dest_region, dx, dy);
|
|
}
|
|
|
|
static GdkWindowRegionMove *
|
|
gdk_window_region_move_new (cairo_region_t *region,
|
|
int dx, int dy)
|
|
{
|
|
GdkWindowRegionMove *move;
|
|
|
|
move = g_slice_new (GdkWindowRegionMove);
|
|
move->dest_region = cairo_region_copy (region);
|
|
move->dx = dx;
|
|
move->dy = dy;
|
|
|
|
return move;
|
|
}
|
|
|
|
static void
|
|
gdk_window_region_move_free (GdkWindowRegionMove *move)
|
|
{
|
|
cairo_region_destroy (move->dest_region);
|
|
g_slice_free (GdkWindowRegionMove, move);
|
|
}
|
|
|
|
static void
|
|
append_move_region (GdkWindowObject *impl_window,
|
|
cairo_region_t *new_dest_region,
|
|
int dx, int dy)
|
|
{
|
|
GdkWindowRegionMove *move, *old_move;
|
|
cairo_region_t *new_total_region, *old_total_region;
|
|
cairo_region_t *source_overlaps_destination;
|
|
cairo_region_t *non_overwritten;
|
|
gboolean added_move;
|
|
GList *l, *prev;
|
|
|
|
if (cairo_region_is_empty (new_dest_region))
|
|
return;
|
|
|
|
/* In principle this could just append the move to the list of outstanding
|
|
moves that will be replayed before drawing anything when we're handling
|
|
exposes. However, we'd like to do a bit better since its commonly the case
|
|
that we get multiple copies where A is copied to B and then B is copied
|
|
to C, and we'd like to express this as a simple copy A to C operation. */
|
|
|
|
/* We approach this by taking the new move and pushing it ahead of moves
|
|
starting at the end of the list and stopping when its not safe to do so.
|
|
It's not safe to push past a move if either the source of the new move
|
|
is in the destination of the old move, or if the destination of the new
|
|
move is in the source of the new move, or if the destination of the new
|
|
move overlaps the destination of the old move. We simplify this by
|
|
just comparing the total regions (src + dest) */
|
|
new_total_region = cairo_region_copy (new_dest_region);
|
|
cairo_region_translate (new_total_region, -dx, -dy);
|
|
cairo_region_union (new_total_region, new_dest_region);
|
|
|
|
added_move = FALSE;
|
|
for (l = g_list_last (impl_window->outstanding_moves); l != NULL; l = prev)
|
|
{
|
|
prev = l->prev;
|
|
old_move = l->data;
|
|
|
|
old_total_region = cairo_region_copy (old_move->dest_region);
|
|
cairo_region_translate (old_total_region, -old_move->dx, -old_move->dy);
|
|
cairo_region_union (old_total_region, old_move->dest_region);
|
|
|
|
cairo_region_intersect (old_total_region, new_total_region);
|
|
/* If these regions intersect then its not safe to push the
|
|
new region before the old one */
|
|
if (!cairo_region_is_empty (old_total_region))
|
|
{
|
|
/* The area where the new moves source overlaps the old ones
|
|
destination */
|
|
source_overlaps_destination = cairo_region_copy (new_dest_region);
|
|
cairo_region_translate (source_overlaps_destination, -dx, -dy);
|
|
cairo_region_intersect (source_overlaps_destination, old_move->dest_region);
|
|
cairo_region_translate (source_overlaps_destination, dx, dy);
|
|
|
|
/* We can do all sort of optimizations here, but to do things safely it becomes
|
|
quite complicated. However, a very common case is that you copy something first,
|
|
then copy all that or a subset of it to a new location (i.e. if you scroll twice
|
|
in the same direction). We'd like to detect this case and optimize it to one
|
|
copy. */
|
|
if (cairo_region_equal (source_overlaps_destination, new_dest_region))
|
|
{
|
|
/* This means we might be able to replace the old move and the new one
|
|
with the new one read from the old ones source, and a second copy of
|
|
the non-overwritten parts of the old move. However, such a split
|
|
is only valid if the source in the old move isn't overwritten
|
|
by the destination of the new one */
|
|
|
|
/* the new destination of old move if split is ok: */
|
|
non_overwritten = cairo_region_copy (old_move->dest_region);
|
|
cairo_region_subtract (non_overwritten, new_dest_region);
|
|
/* move to source region */
|
|
cairo_region_translate (non_overwritten, -old_move->dx, -old_move->dy);
|
|
|
|
cairo_region_intersect (non_overwritten, new_dest_region);
|
|
if (cairo_region_is_empty (non_overwritten))
|
|
{
|
|
added_move = TRUE;
|
|
move = gdk_window_region_move_new (new_dest_region,
|
|
dx + old_move->dx,
|
|
dy + old_move->dy);
|
|
|
|
impl_window->outstanding_moves =
|
|
g_list_insert_before (impl_window->outstanding_moves,
|
|
l, move);
|
|
cairo_region_subtract (old_move->dest_region, new_dest_region);
|
|
}
|
|
cairo_region_destroy (non_overwritten);
|
|
}
|
|
|
|
cairo_region_destroy (source_overlaps_destination);
|
|
cairo_region_destroy (old_total_region);
|
|
break;
|
|
}
|
|
cairo_region_destroy (old_total_region);
|
|
}
|
|
|
|
cairo_region_destroy (new_total_region);
|
|
|
|
if (!added_move)
|
|
{
|
|
move = gdk_window_region_move_new (new_dest_region, dx, dy);
|
|
|
|
if (l == NULL)
|
|
impl_window->outstanding_moves =
|
|
g_list_prepend (impl_window->outstanding_moves,
|
|
move);
|
|
else
|
|
impl_window->outstanding_moves =
|
|
g_list_insert_before (impl_window->outstanding_moves,
|
|
l->next, move);
|
|
}
|
|
}
|
|
|
|
/* Moves bits and update area by dx/dy in impl window.
|
|
Takes ownership of region to avoid copy (because we may change it) */
|
|
static void
|
|
move_region_on_impl (GdkWindowObject *impl_window,
|
|
cairo_region_t *region, /* In impl window coords */
|
|
int dx, int dy)
|
|
{
|
|
if ((dx == 0 && dy == 0) ||
|
|
cairo_region_is_empty (region))
|
|
{
|
|
cairo_region_destroy (region);
|
|
return;
|
|
}
|
|
|
|
g_assert (impl_window == gdk_window_get_impl_window (impl_window));
|
|
|
|
/* Move any old invalid regions in the copy source area by dx/dy */
|
|
if (impl_window->update_area)
|
|
{
|
|
cairo_region_t *update_area;
|
|
|
|
update_area = cairo_region_copy (region);
|
|
|
|
/* Convert from target to source */
|
|
cairo_region_translate (update_area, -dx, -dy);
|
|
cairo_region_intersect (update_area, impl_window->update_area);
|
|
/* We only copy the area, so keep the old update area invalid.
|
|
It would be safe to remove it too, as code that uses
|
|
move_region_on_impl generally also invalidate the source
|
|
area. However, it would just use waste cycles. */
|
|
|
|
/* Convert back */
|
|
cairo_region_translate (update_area, dx, dy);
|
|
cairo_region_union (impl_window->update_area, update_area);
|
|
|
|
/* This area of the destination is now invalid,
|
|
so no need to copy to it. */
|
|
cairo_region_subtract (region, update_area);
|
|
|
|
cairo_region_destroy (update_area);
|
|
}
|
|
|
|
/* If we're currently exposing this window, don't copy to this
|
|
destination, as it will be overdrawn when the expose is done,
|
|
instead invalidate it and repaint later. */
|
|
if (impl_window->implicit_paint)
|
|
{
|
|
GdkWindowPaint *implicit_paint = impl_window->implicit_paint;
|
|
cairo_region_t *exposing;
|
|
|
|
exposing = cairo_region_copy (implicit_paint->region);
|
|
cairo_region_intersect (exposing, region);
|
|
cairo_region_subtract (region, exposing);
|
|
|
|
impl_window_add_update_area (impl_window, exposing);
|
|
cairo_region_destroy (exposing);
|
|
}
|
|
|
|
if (impl_window->outstanding_surfaces == 0) /* Enable flicker free handling of moves. */
|
|
append_move_region (impl_window, region, dx, dy);
|
|
else
|
|
do_move_region_bits_on_impl (impl_window,
|
|
region, dx, dy);
|
|
|
|
cairo_region_destroy (region);
|
|
}
|
|
|
|
/* Flushes all outstanding changes to the window, call this
|
|
* before drawing directly to the window (i.e. outside a begin/end_paint pair).
|
|
*/
|
|
static void
|
|
gdk_window_flush_outstanding_moves (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkWindowObject *impl_window;
|
|
GList *l, *outstanding;
|
|
GdkWindowRegionMove *move;
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
impl_window = gdk_window_get_impl_window (private);
|
|
outstanding = impl_window->outstanding_moves;
|
|
impl_window->outstanding_moves = NULL;
|
|
|
|
for (l = outstanding; l != NULL; l = l->next)
|
|
{
|
|
move = l->data;
|
|
|
|
do_move_region_bits_on_impl (impl_window,
|
|
move->dest_region, move->dx, move->dy);
|
|
|
|
gdk_window_region_move_free (move);
|
|
}
|
|
|
|
g_list_free (outstanding);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_flush:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Flush all outstanding cached operations on a window, leaving the
|
|
* window in a state which reflects all that has been drawn before.
|
|
*
|
|
* Gdk uses multiple kinds of caching to get better performance and
|
|
* nicer drawing. For instance, during exposes all paints to a window
|
|
* using double buffered rendering are keep on a pixmap until the last
|
|
* window has been exposed. It also delays window moves/scrolls until
|
|
* as long as possible until next update to avoid tearing when moving
|
|
* windows.
|
|
*
|
|
* Normally this should be completely invisible to applications, as
|
|
* we automatically flush the windows when required, but this might
|
|
* be needed if you for instance mix direct native drawing with
|
|
* gdk drawing. For Gtk widgets that don't use double buffering this
|
|
* will be called automatically before sending the expose event.
|
|
*
|
|
* Since: 2.18
|
|
**/
|
|
void
|
|
gdk_window_flush (GdkWindow *window)
|
|
{
|
|
gdk_window_flush_outstanding_moves (window);
|
|
gdk_window_flush_implicit_paint (window);
|
|
}
|
|
|
|
/* If we're about to move/resize or otherwise change the
|
|
* hierarchy of a client side window in an impl and we're
|
|
* called from an expose event handler then we need to
|
|
* flush any already painted parts of the implicit paint
|
|
* that are not part of the current paint, as these may
|
|
* be used when scrolling or may overdraw the changes
|
|
* caused by the hierarchy change.
|
|
*/
|
|
static void
|
|
gdk_window_flush_if_exposing (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkWindowObject *impl_window;
|
|
|
|
private = (GdkWindowObject *) window;
|
|
impl_window = gdk_window_get_impl_window (private);
|
|
|
|
/* If we're in an implicit paint (i.e. in an expose handler, flush
|
|
all the already finished exposes to get things to an uptodate state. */
|
|
if (impl_window->implicit_paint)
|
|
gdk_window_flush (window);
|
|
}
|
|
|
|
|
|
static void
|
|
gdk_window_flush_recursive_helper (GdkWindowObject *window,
|
|
GdkWindow *impl)
|
|
{
|
|
GdkWindowObject *child;
|
|
GList *l;
|
|
|
|
for (l = window->children; l != NULL; l = l->next)
|
|
{
|
|
child = l->data;
|
|
|
|
if (child->impl == impl)
|
|
/* Same impl, ignore */
|
|
gdk_window_flush_recursive_helper (child, impl);
|
|
else
|
|
gdk_window_flush_recursive (child);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gdk_window_flush_recursive (GdkWindowObject *window)
|
|
{
|
|
gdk_window_flush ((GdkWindow *)window);
|
|
gdk_window_flush_recursive_helper (window, window->impl);
|
|
}
|
|
|
|
static void
|
|
gdk_window_get_offsets (GdkWindow *window,
|
|
gint *x_offset,
|
|
gint *y_offset)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
|
|
if (private->paint_stack)
|
|
{
|
|
GdkWindowPaint *paint = private->paint_stack->data;
|
|
*x_offset = paint->x_offset;
|
|
*y_offset = paint->y_offset;
|
|
}
|
|
else
|
|
{
|
|
*x_offset = -private->abs_x;
|
|
*y_offset = -private->abs_y;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_internal_paint_info:
|
|
* @window: a #GdkWindow
|
|
* @real_drawable: (out): location to store the drawable to which drawing should be
|
|
* done.
|
|
* @x_offset: (out): location to store the X offset between coordinates in @window,
|
|
* and the underlying window system primitive coordinates for
|
|
* *@real_drawable.
|
|
* @y_offset: (out): location to store the Y offset between coordinates in @window,
|
|
* and the underlying window system primitive coordinates for
|
|
* *@real_drawable.
|
|
*
|
|
* If you bypass the GDK layer and use windowing system primitives to
|
|
* draw directly onto a #GdkWindow, then you need to deal with two
|
|
* details: there may be an offset between GDK coordinates and windowing
|
|
* system coordinates, and GDK may have redirected drawing to a offscreen
|
|
* pixmap as the result of a gdk_window_begin_paint_region() calls.
|
|
* This function allows retrieving the information you need to compensate
|
|
* for these effects.
|
|
*
|
|
* This function exposes details of the GDK implementation, and is thus
|
|
* likely to change in future releases of GDK.
|
|
**/
|
|
void
|
|
gdk_window_get_internal_paint_info (GdkWindow *window,
|
|
GdkDrawable **real_drawable,
|
|
gint *x_offset,
|
|
gint *y_offset)
|
|
{
|
|
gint x_off, y_off;
|
|
|
|
GdkWindowObject *private;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject *)window;
|
|
|
|
if (real_drawable)
|
|
{
|
|
if (private->paint_stack)
|
|
{
|
|
GdkWindowPaint *paint = private->paint_stack->data;
|
|
*real_drawable = paint->pixmap;
|
|
}
|
|
else
|
|
{
|
|
/* This means you're probably gonna be doing some weird shit
|
|
directly to the window, so we flush all outstanding stuff */
|
|
gdk_window_flush (window);
|
|
*real_drawable = window;
|
|
}
|
|
}
|
|
|
|
gdk_window_get_offsets (window, &x_off, &y_off);
|
|
|
|
if (x_offset)
|
|
*x_offset = x_off;
|
|
if (y_offset)
|
|
*y_offset = y_off;
|
|
}
|
|
|
|
static GdkDrawable *
|
|
gdk_window_get_source_drawable (GdkDrawable *drawable)
|
|
{
|
|
GdkWindow *window = GDK_WINDOW (drawable);
|
|
GdkWindowObject *private;
|
|
|
|
private = (GdkWindowObject *) window;
|
|
if (GDK_DRAWABLE_GET_CLASS (private->impl)->get_source_drawable)
|
|
return GDK_DRAWABLE_GET_CLASS (private->impl)->get_source_drawable (private->impl);
|
|
|
|
return drawable;
|
|
}
|
|
|
|
static cairo_region_t*
|
|
gdk_window_get_clip_region (GdkDrawable *drawable)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)drawable;
|
|
cairo_region_t *result;
|
|
|
|
result = cairo_region_copy (private->clip_region);
|
|
|
|
if (private->paint_stack)
|
|
{
|
|
cairo_region_t *paint_region = cairo_region_create ();
|
|
GSList *tmp_list = private->paint_stack;
|
|
|
|
while (tmp_list)
|
|
{
|
|
GdkWindowPaint *paint = tmp_list->data;
|
|
|
|
cairo_region_union (paint_region, paint->region);
|
|
|
|
tmp_list = tmp_list->next;
|
|
}
|
|
|
|
cairo_region_intersect (result, paint_region);
|
|
cairo_region_destroy (paint_region);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static cairo_region_t*
|
|
gdk_window_get_visible_region (GdkDrawable *drawable)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject*) drawable;
|
|
|
|
return cairo_region_copy (private->clip_region);
|
|
}
|
|
|
|
static cairo_t *
|
|
setup_backing_rect (GdkWindow *window, GdkWindowPaint *paint, int x_offset_cairo, int y_offset_cairo)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *) window;
|
|
GdkWindowObject *bg_private;
|
|
cairo_pattern_t *pattern = NULL;
|
|
int x_offset = 0, y_offset = 0;
|
|
cairo_t *cr;
|
|
|
|
cr = cairo_create (paint->surface);
|
|
|
|
for (bg_private = private; bg_private; bg_private = bg_private->parent)
|
|
{
|
|
pattern = gdk_window_get_background_pattern ((GdkWindow *) bg_private);
|
|
if (pattern)
|
|
break;
|
|
|
|
x_offset += bg_private->x;
|
|
y_offset += bg_private->y;
|
|
}
|
|
|
|
if (pattern)
|
|
{
|
|
cairo_translate (cr, -x_offset, -y_offset);
|
|
cairo_set_source (cr, pattern);
|
|
cairo_translate (cr, x_offset, y_offset);
|
|
}
|
|
else
|
|
gdk_cairo_set_source_color (cr, &private->bg_color);
|
|
|
|
return cr;
|
|
}
|
|
|
|
static void
|
|
gdk_window_clear_backing_region (GdkWindow *window,
|
|
cairo_region_t *region)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkWindowPaint *paint = private->paint_stack->data;
|
|
cairo_region_t *clip;
|
|
GdkRectangle clipbox;
|
|
cairo_t *cr;
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return;
|
|
|
|
cr = setup_backing_rect (window, paint, 0, 0);
|
|
|
|
clip = cairo_region_copy (paint->region);
|
|
cairo_region_intersect (clip, region);
|
|
cairo_region_get_extents (clip, &clipbox);
|
|
|
|
gdk_cairo_region (cr, clip);
|
|
cairo_fill (cr);
|
|
|
|
cairo_destroy (cr);
|
|
|
|
cairo_region_destroy (clip);
|
|
}
|
|
|
|
static void
|
|
gdk_window_clear_backing_region_redirect (GdkWindow *window,
|
|
cairo_region_t *region)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkWindowRedirect *redirect = private->redirect;
|
|
cairo_region_t *clip_region;
|
|
gint x_offset, y_offset;
|
|
GdkWindowPaint paint;
|
|
cairo_t *cr;
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return;
|
|
|
|
clip_region = _gdk_window_calculate_full_clip_region (window,
|
|
GDK_WINDOW (redirect->redirected),
|
|
TRUE,
|
|
&x_offset, &y_offset);
|
|
cairo_region_intersect (clip_region, region);
|
|
|
|
/* offset is from redirected window origin to window origin, convert to
|
|
the offset from the redirected pixmap origin to the window origin */
|
|
x_offset += redirect->dest_x - redirect->src_x;
|
|
y_offset += redirect->dest_y - redirect->src_y;
|
|
|
|
/* Convert region to pixmap coords */
|
|
cairo_region_translate (clip_region, x_offset, y_offset);
|
|
|
|
paint.x_offset = 0;
|
|
paint.y_offset = 0;
|
|
paint.pixmap = redirect->pixmap;
|
|
paint.surface = _gdk_drawable_ref_cairo_surface (redirect->pixmap);
|
|
|
|
cr = setup_backing_rect (window, &paint, -x_offset, -y_offset);
|
|
|
|
gdk_cairo_region (cr, clip_region);
|
|
cairo_fill (cr);
|
|
|
|
cairo_destroy (cr);
|
|
cairo_region_destroy (clip_region);
|
|
cairo_surface_destroy (paint.surface);
|
|
}
|
|
|
|
static void
|
|
gdk_window_clear_backing_region_direct (GdkWindow *window,
|
|
cairo_region_t *region)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkWindowPaint paint;
|
|
cairo_region_t *clip;
|
|
GdkRectangle clipbox;
|
|
cairo_t *cr;
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return;
|
|
|
|
paint.x_offset = 0;
|
|
paint.y_offset = 0;
|
|
paint.pixmap = window;
|
|
paint.surface = _gdk_drawable_ref_cairo_surface (window);
|
|
|
|
cr = setup_backing_rect (window, &paint, 0, 0);
|
|
|
|
clip = cairo_region_copy (private->clip_region_with_children);
|
|
cairo_region_intersect (clip, region);
|
|
cairo_region_get_extents (clip, &clipbox);
|
|
|
|
gdk_cairo_region (cr, clip);
|
|
cairo_fill (cr);
|
|
|
|
cairo_destroy (cr);
|
|
|
|
cairo_region_destroy (clip);
|
|
cairo_surface_destroy (paint.surface);
|
|
}
|
|
|
|
|
|
/**
|
|
* gdk_window_clear:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Clears an entire @window to the background color or background pixmap.
|
|
**/
|
|
void
|
|
gdk_window_clear (GdkWindow *window)
|
|
{
|
|
gint width, height;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
gdk_drawable_get_size (GDK_DRAWABLE (window), &width, &height);
|
|
|
|
gdk_window_clear_area (window, 0, 0,
|
|
width, height);
|
|
}
|
|
|
|
/* TRUE if the window clears to the same pixels as a native
|
|
window clear. This means you can use the native window
|
|
clearing operation, and additionally it means any clearing
|
|
done by the native window system for you will already be right */
|
|
static gboolean
|
|
clears_as_native (GdkWindowObject *private)
|
|
{
|
|
GdkWindowObject *next;
|
|
|
|
next = private;
|
|
do
|
|
{
|
|
private = next;
|
|
if (gdk_window_has_impl (private))
|
|
return TRUE;
|
|
next = private->parent;
|
|
}
|
|
while (private->bg_pixmap == GDK_PARENT_RELATIVE_BG &&
|
|
next && next->window_type != GDK_WINDOW_ROOT);
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gdk_window_clear_region_internal (GdkWindow *window,
|
|
cairo_region_t *region,
|
|
gboolean send_expose)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkWindowImplIface *impl_iface;
|
|
|
|
if (private->paint_stack)
|
|
gdk_window_clear_backing_region (window, region);
|
|
else
|
|
{
|
|
if (private->redirect)
|
|
gdk_window_clear_backing_region_redirect (window, region);
|
|
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
|
|
if (impl_iface->clear_region && clears_as_native (private))
|
|
{
|
|
cairo_region_t *copy;
|
|
copy = cairo_region_copy (region);
|
|
cairo_region_intersect (copy,
|
|
private->clip_region_with_children);
|
|
|
|
|
|
/* Drawing directly to the window, flush anything outstanding to
|
|
guarantee ordering. */
|
|
gdk_window_flush (window);
|
|
impl_iface->clear_region (window, copy, send_expose);
|
|
|
|
cairo_region_destroy (copy);
|
|
}
|
|
else
|
|
{
|
|
gdk_window_clear_backing_region_direct (window, region);
|
|
if (send_expose)
|
|
gdk_window_invalidate_region (window, region, FALSE);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gdk_window_clear_area_internal (GdkWindow *window,
|
|
gint x,
|
|
gint y,
|
|
gint width,
|
|
gint height,
|
|
gboolean send_expose)
|
|
{
|
|
GdkRectangle rect;
|
|
cairo_region_t *region;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return;
|
|
|
|
/* Terminate early to avoid weird interpretation of
|
|
zero width/height by XClearArea */
|
|
if (width == 0 || height == 0)
|
|
return;
|
|
|
|
rect.x = x;
|
|
rect.y = y;
|
|
rect.width = width;
|
|
rect.height = height;
|
|
|
|
region = cairo_region_create_rectangle (&rect);
|
|
gdk_window_clear_region_internal (window,
|
|
region,
|
|
send_expose);
|
|
cairo_region_destroy (region);
|
|
|
|
}
|
|
|
|
/**
|
|
* gdk_window_clear_area:
|
|
* @window: a #GdkWindow
|
|
* @x: x coordinate of rectangle to clear
|
|
* @y: y coordinate of rectangle to clear
|
|
* @width: width of rectangle to clear
|
|
* @height: height of rectangle to clear
|
|
*
|
|
* Clears an area of @window to the background color or background pixmap.
|
|
*
|
|
**/
|
|
void
|
|
gdk_window_clear_area (GdkWindow *window,
|
|
gint x,
|
|
gint y,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
gdk_window_clear_area_internal (window,
|
|
x, y,
|
|
width, height,
|
|
FALSE);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_clear_area_e:
|
|
* @window: a #GdkWindow
|
|
* @x: x coordinate of rectangle to clear
|
|
* @y: y coordinate of rectangle to clear
|
|
* @width: width of rectangle to clear
|
|
* @height: height of rectangle to clear
|
|
*
|
|
* Like gdk_window_clear_area(), but also generates an expose event for
|
|
* the cleared area.
|
|
*
|
|
* This function has a stupid name because it dates back to the mists
|
|
* time, pre-GDK-1.0.
|
|
*
|
|
**/
|
|
void
|
|
gdk_window_clear_area_e (GdkWindow *window,
|
|
gint x,
|
|
gint y,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
gdk_window_clear_area_internal (window,
|
|
x, y,
|
|
width, height,
|
|
TRUE);
|
|
}
|
|
|
|
static void
|
|
gdk_window_real_get_size (GdkDrawable *drawable,
|
|
gint *width,
|
|
gint *height)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)drawable;
|
|
|
|
if (width)
|
|
*width = private->width;
|
|
if (height)
|
|
*height = private->height;
|
|
}
|
|
|
|
static GdkVisual*
|
|
gdk_window_real_get_visual (GdkDrawable *drawable)
|
|
{
|
|
GdkColormap *colormap;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (drawable), NULL);
|
|
|
|
colormap = gdk_drawable_get_colormap (drawable);
|
|
return colormap ? gdk_colormap_get_visual (colormap) : NULL;
|
|
}
|
|
|
|
static gint
|
|
gdk_window_real_get_depth (GdkDrawable *drawable)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_WINDOW (drawable), 0);
|
|
|
|
return ((GdkWindowObject *)GDK_WINDOW (drawable))->depth;
|
|
}
|
|
|
|
static GdkScreen*
|
|
gdk_window_real_get_screen (GdkDrawable *drawable)
|
|
{
|
|
return gdk_drawable_get_screen (GDK_WINDOW_OBJECT (drawable)->impl);
|
|
}
|
|
|
|
static void
|
|
gdk_window_real_set_colormap (GdkDrawable *drawable,
|
|
GdkColormap *cmap)
|
|
{
|
|
GdkWindowObject *private;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (drawable));
|
|
|
|
if (GDK_WINDOW_DESTROYED (drawable))
|
|
return;
|
|
|
|
private = (GdkWindowObject *)drawable;
|
|
|
|
/* different colormap than parent, requires native window */
|
|
if (!private->input_only &&
|
|
cmap != gdk_drawable_get_colormap ((GdkDrawable *)(private->parent)))
|
|
gdk_window_ensure_native ((GdkWindow *)drawable);
|
|
|
|
gdk_drawable_set_colormap (private->impl, cmap);
|
|
}
|
|
|
|
static GdkColormap*
|
|
gdk_window_real_get_colormap (GdkDrawable *drawable)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_WINDOW (drawable), NULL);
|
|
|
|
if (GDK_WINDOW_DESTROYED (drawable))
|
|
return NULL;
|
|
|
|
return gdk_drawable_get_colormap (((GdkWindowObject*)drawable)->impl);
|
|
}
|
|
|
|
static void
|
|
gdk_window_drop_cairo_surface (GdkWindowObject *private)
|
|
{
|
|
if (private->cairo_surface)
|
|
{
|
|
cairo_surface_finish (private->cairo_surface);
|
|
cairo_surface_set_user_data (private->cairo_surface, &gdk_window_cairo_key,
|
|
NULL, NULL);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gdk_window_cairo_surface_destroy (void *data)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject*) data;
|
|
|
|
private->cairo_surface = NULL;
|
|
private->impl_window->outstanding_surfaces--;
|
|
}
|
|
|
|
static cairo_surface_t *
|
|
gdk_window_create_cairo_surface (GdkDrawable *drawable,
|
|
int width,
|
|
int height)
|
|
{
|
|
return _gdk_windowing_create_cairo_surface (GDK_WINDOW_OBJECT(drawable)->impl,
|
|
width, height);
|
|
}
|
|
|
|
|
|
static cairo_surface_t *
|
|
gdk_window_ref_cairo_surface (GdkDrawable *drawable)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject*) drawable;
|
|
cairo_surface_t *surface;
|
|
|
|
if (private->paint_stack)
|
|
{
|
|
GdkWindowPaint *paint = private->paint_stack->data;
|
|
|
|
surface = paint->surface;
|
|
cairo_surface_reference (surface);
|
|
}
|
|
else
|
|
{
|
|
|
|
/* This will be drawing directly to the window, so flush implicit paint */
|
|
gdk_window_flush ((GdkWindow *)drawable);
|
|
|
|
if (!private->cairo_surface)
|
|
{
|
|
int width, height;
|
|
GdkDrawable *source;
|
|
|
|
/* It would be nice if we had some cairo support here so we
|
|
could set the clip rect on the cairo surface */
|
|
width = private->abs_x + private->width;
|
|
height = private->abs_y + private->height;
|
|
|
|
source = _gdk_drawable_get_source_drawable (drawable);
|
|
|
|
private->cairo_surface = _gdk_drawable_create_cairo_surface (source, width, height);
|
|
|
|
if (private->cairo_surface)
|
|
{
|
|
private->impl_window->outstanding_surfaces++;
|
|
|
|
cairo_surface_set_device_offset (private->cairo_surface,
|
|
private->abs_x,
|
|
private->abs_y);
|
|
|
|
cairo_surface_set_user_data (private->cairo_surface, &gdk_window_cairo_key,
|
|
drawable, gdk_window_cairo_surface_destroy);
|
|
}
|
|
}
|
|
else
|
|
cairo_surface_reference (private->cairo_surface);
|
|
|
|
surface = private->cairo_surface;
|
|
}
|
|
|
|
return surface;
|
|
}
|
|
|
|
static void
|
|
gdk_window_set_cairo_clip (GdkDrawable *drawable,
|
|
cairo_t *cr)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject*) drawable;
|
|
|
|
if (!private->paint_stack)
|
|
{
|
|
cairo_reset_clip (cr);
|
|
|
|
cairo_save (cr);
|
|
cairo_identity_matrix (cr);
|
|
|
|
cairo_new_path (cr);
|
|
gdk_cairo_region (cr, private->clip_region_with_children);
|
|
|
|
cairo_restore (cr);
|
|
cairo_clip (cr);
|
|
}
|
|
else
|
|
{
|
|
GdkWindowPaint *paint = private->paint_stack->data;
|
|
|
|
/* Only needs to clip to region if piggybacking
|
|
on an implicit paint pixmap */
|
|
cairo_reset_clip (cr);
|
|
if (paint->uses_implicit)
|
|
{
|
|
cairo_save (cr);
|
|
cairo_identity_matrix (cr);
|
|
|
|
cairo_new_path (cr);
|
|
gdk_cairo_region (cr, paint->region);
|
|
cairo_restore (cr);
|
|
|
|
cairo_clip (cr);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Code for dirty-region queueing
|
|
*/
|
|
static GSList *update_windows = NULL;
|
|
static guint update_idle = 0;
|
|
static gboolean debug_updates = FALSE;
|
|
|
|
static inline gboolean
|
|
gdk_window_is_ancestor (GdkWindow *window,
|
|
GdkWindow *ancestor)
|
|
{
|
|
while (window)
|
|
{
|
|
GdkWindow *parent = (GdkWindow*) ((GdkWindowObject*) window)->parent;
|
|
|
|
if (parent == ancestor)
|
|
return TRUE;
|
|
|
|
window = parent;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gdk_window_add_update_window (GdkWindow *window)
|
|
{
|
|
GSList *tmp;
|
|
GSList *prev = NULL;
|
|
gboolean has_ancestor_in_list = FALSE;
|
|
|
|
for (tmp = update_windows; tmp; tmp = tmp->next)
|
|
{
|
|
GdkWindowObject *parent = GDK_WINDOW_OBJECT (window)->parent;
|
|
|
|
/* check if tmp is an ancestor of "window"; if it is, set a
|
|
* flag indicating that all following windows are either
|
|
* children of "window" or from a differen hierarchy
|
|
*/
|
|
if (!has_ancestor_in_list && gdk_window_is_ancestor (window, tmp->data))
|
|
has_ancestor_in_list = TRUE;
|
|
|
|
/* insert in reverse stacking order when adding around siblings,
|
|
* so processing updates properly paints over lower stacked windows
|
|
*/
|
|
if (parent == GDK_WINDOW_OBJECT (tmp->data)->parent)
|
|
{
|
|
gint index = g_list_index (parent->children, window);
|
|
for (; tmp && parent == GDK_WINDOW_OBJECT (tmp->data)->parent; tmp = tmp->next)
|
|
{
|
|
gint sibling_index = g_list_index (parent->children, tmp->data);
|
|
if (index > sibling_index)
|
|
break;
|
|
prev = tmp;
|
|
}
|
|
/* here, tmp got advanced past all lower stacked siblings */
|
|
tmp = g_slist_prepend (tmp, window);
|
|
if (prev)
|
|
prev->next = tmp;
|
|
else
|
|
update_windows = tmp;
|
|
return;
|
|
}
|
|
|
|
/* if "window" has an ancestor in the list and tmp is one of
|
|
* "window's" children, insert "window" before tmp
|
|
*/
|
|
if (has_ancestor_in_list && gdk_window_is_ancestor (tmp->data, window))
|
|
{
|
|
tmp = g_slist_prepend (tmp, window);
|
|
|
|
if (prev)
|
|
prev->next = tmp;
|
|
else
|
|
update_windows = tmp;
|
|
return;
|
|
}
|
|
|
|
/* if we're at the end of the list and had an ancestor it it,
|
|
* append to the list
|
|
*/
|
|
if (! tmp->next && has_ancestor_in_list)
|
|
{
|
|
tmp = g_slist_append (tmp, window);
|
|
return;
|
|
}
|
|
|
|
prev = tmp;
|
|
}
|
|
|
|
/* if all above checks failed ("window" is from a different
|
|
* hierarchy than what is already in the list) or the list is
|
|
* empty, prepend
|
|
*/
|
|
update_windows = g_slist_prepend (update_windows, window);
|
|
}
|
|
|
|
static void
|
|
gdk_window_remove_update_window (GdkWindow *window)
|
|
{
|
|
update_windows = g_slist_remove (update_windows, window);
|
|
}
|
|
|
|
static gboolean
|
|
gdk_window_update_idle (gpointer data)
|
|
{
|
|
gdk_window_process_all_updates ();
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gdk_window_is_toplevel_frozen (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *toplevel;
|
|
|
|
toplevel = (GdkWindowObject *)gdk_window_get_toplevel (window);
|
|
|
|
return toplevel->update_and_descendants_freeze_count > 0;
|
|
}
|
|
|
|
static void
|
|
gdk_window_schedule_update (GdkWindow *window)
|
|
{
|
|
if (window &&
|
|
(GDK_WINDOW_OBJECT (window)->update_freeze_count ||
|
|
gdk_window_is_toplevel_frozen (window)))
|
|
return;
|
|
|
|
if (!update_idle)
|
|
update_idle =
|
|
gdk_threads_add_idle_full (GDK_PRIORITY_REDRAW,
|
|
gdk_window_update_idle,
|
|
NULL, NULL);
|
|
}
|
|
|
|
void
|
|
_gdk_window_process_updates_recurse (GdkWindow *window,
|
|
cairo_region_t *expose_region)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkWindowObject *child;
|
|
cairo_region_t *child_region;
|
|
GdkRectangle r;
|
|
GList *l, *children;
|
|
|
|
if (cairo_region_is_empty (expose_region))
|
|
return;
|
|
|
|
if (gdk_window_is_offscreen (private->impl_window) &&
|
|
private == private->impl_window)
|
|
_gdk_window_add_damage ((GdkWindow *) private->impl_window, expose_region);
|
|
|
|
/* Make this reentrancy safe for expose handlers freeing windows */
|
|
children = g_list_copy (private->children);
|
|
g_list_foreach (children, (GFunc)g_object_ref, NULL);
|
|
|
|
/* Iterate over children, starting at topmost */
|
|
for (l = children; l != NULL; l = l->next)
|
|
{
|
|
child = l->data;
|
|
|
|
if (child->destroyed || !GDK_WINDOW_IS_MAPPED (child) || child->input_only || child->composited)
|
|
continue;
|
|
|
|
/* Ignore offscreen children, as they don't draw in their parent and
|
|
* don't take part in the clipping */
|
|
if (gdk_window_is_offscreen (child))
|
|
continue;
|
|
|
|
r.x = child->x;
|
|
r.y = child->y;
|
|
r.width = child->width;
|
|
r.height = child->height;
|
|
|
|
child_region = cairo_region_create_rectangle (&r);
|
|
if (child->shape)
|
|
{
|
|
/* Adjust shape region to parent window coords */
|
|
cairo_region_translate (child->shape, child->x, child->y);
|
|
cairo_region_intersect (child_region, child->shape);
|
|
cairo_region_translate (child->shape, -child->x, -child->y);
|
|
}
|
|
|
|
if (child->impl == private->impl)
|
|
{
|
|
/* Client side child, expose */
|
|
cairo_region_intersect (child_region, expose_region);
|
|
cairo_region_subtract (expose_region, child_region);
|
|
cairo_region_translate (child_region, -child->x, -child->y);
|
|
_gdk_window_process_updates_recurse ((GdkWindow *)child, child_region);
|
|
}
|
|
else
|
|
{
|
|
/* Native child, just remove area from expose region */
|
|
cairo_region_subtract (expose_region, child_region);
|
|
}
|
|
cairo_region_destroy (child_region);
|
|
}
|
|
|
|
g_list_foreach (children, (GFunc)g_object_unref, NULL);
|
|
g_list_free (children);
|
|
|
|
if (!cairo_region_is_empty (expose_region) &&
|
|
!private->destroyed)
|
|
{
|
|
if (private->event_mask & GDK_EXPOSURE_MASK)
|
|
{
|
|
GdkEvent event;
|
|
|
|
event.expose.type = GDK_EXPOSE;
|
|
event.expose.window = g_object_ref (window);
|
|
event.expose.send_event = FALSE;
|
|
event.expose.count = 0;
|
|
event.expose.region = expose_region;
|
|
cairo_region_get_extents (expose_region, &event.expose.area);
|
|
|
|
(*_gdk_event_func) (&event, _gdk_event_data);
|
|
|
|
g_object_unref (window);
|
|
}
|
|
else if (private->bg_pixmap != GDK_NO_BG &&
|
|
private->window_type != GDK_WINDOW_FOREIGN)
|
|
{
|
|
/* No exposure mask set, so nothing will be drawn, the
|
|
* app relies on the background being what it specified
|
|
* for the window. So, we need to clear this manually.
|
|
*
|
|
* For foreign windows if expose is not set that generally
|
|
* means some other client paints them, so don't clear
|
|
* there.
|
|
*
|
|
* We use begin/end_paint around the clear so that we can
|
|
* piggyback on the implicit paint */
|
|
|
|
gdk_window_begin_paint_region (window, expose_region);
|
|
gdk_window_clear_region_internal (window, expose_region, FALSE);
|
|
gdk_window_end_paint (window);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Process and remove any invalid area on the native window by creating
|
|
* expose events for the window and all non-native descendants.
|
|
* Also processes any outstanding moves on the window before doing
|
|
* any drawing. Note that its possible to have outstanding moves without
|
|
* any invalid area as we use the update idle mechanism to coalesce
|
|
* multiple moves as well as multiple invalidations.
|
|
*/
|
|
static void
|
|
gdk_window_process_updates_internal (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkWindowImplIface *impl_iface;
|
|
gboolean save_region = FALSE;
|
|
GdkRectangle clip_box;
|
|
|
|
/* Ensure the window lives while updating it */
|
|
g_object_ref (window);
|
|
|
|
/* If an update got queued during update processing, we can get a
|
|
* window in the update queue that has an empty update_area.
|
|
* just ignore it.
|
|
*/
|
|
if (private->update_area)
|
|
{
|
|
cairo_region_t *update_area = private->update_area;
|
|
private->update_area = NULL;
|
|
|
|
if (_gdk_event_func && gdk_window_is_viewable (window))
|
|
{
|
|
cairo_region_t *expose_region;
|
|
gboolean end_implicit;
|
|
|
|
/* Clip to part visible in toplevel */
|
|
cairo_region_intersect (update_area, private->clip_region);
|
|
|
|
if (debug_updates)
|
|
{
|
|
/* Make sure we see the red invalid area before redrawing. */
|
|
gdk_display_sync (gdk_drawable_get_display (window));
|
|
g_usleep (70000);
|
|
}
|
|
|
|
/* At this point we will be completely redrawing all of update_area.
|
|
* If we have any outstanding moves that end up moving stuff inside
|
|
* this area we don't actually need to move that as that part would
|
|
* be overdrawn by the expose anyway. So, in order to copy less data
|
|
* we remove these areas from the outstanding moves.
|
|
*/
|
|
if (private->outstanding_moves)
|
|
{
|
|
GdkWindowRegionMove *move;
|
|
cairo_region_t *remove;
|
|
GList *l, *prev;
|
|
|
|
remove = cairo_region_copy (update_area);
|
|
/* We iterate backwards, starting from the state that would be
|
|
if we had applied all the moves. */
|
|
for (l = g_list_last (private->outstanding_moves); l != NULL; l = prev)
|
|
{
|
|
prev = l->prev;
|
|
move = l->data;
|
|
|
|
/* Don't need this area */
|
|
cairo_region_subtract (move->dest_region, remove);
|
|
|
|
/* However if any of the destination we do need has a source
|
|
in the updated region we do need that as a destination for
|
|
the earlier moves */
|
|
cairo_region_translate (move->dest_region, -move->dx, -move->dy);
|
|
cairo_region_subtract (remove, move->dest_region);
|
|
|
|
if (cairo_region_is_empty (move->dest_region))
|
|
{
|
|
gdk_window_region_move_free (move);
|
|
private->outstanding_moves =
|
|
g_list_delete_link (private->outstanding_moves, l);
|
|
}
|
|
else /* move back */
|
|
cairo_region_translate (move->dest_region, move->dx, move->dy);
|
|
}
|
|
cairo_region_destroy (remove);
|
|
}
|
|
|
|
/* By now we a set of window moves that should be applied, and then
|
|
* an update region that should be repainted. A trivial implementation
|
|
* would just do that in order, however in order to get nicer drawing
|
|
* we do some tricks:
|
|
*
|
|
* First of all, each subwindow expose may be double buffered by
|
|
* itself (depending on widget setting) via
|
|
* gdk_window_begin/end_paint(). But we also do an "implicit" paint,
|
|
* creating a single pixmap the size of the invalid area on the
|
|
* native window which all the individual normal paints will draw
|
|
* into. This way in the normal case there will be only one pixmap
|
|
* allocated and only once pixmap draw done for all the windows
|
|
* in this native window.
|
|
* There are a couple of reasons this may fail, for instance, some
|
|
* backends (like quartz) do its own double buffering, so we disable
|
|
* gdk double buffering there. Secondly, some subwindow could be
|
|
* non-double buffered and draw directly to the window outside a
|
|
* begin/end_paint pair. That will be lead to a gdk_window_flush
|
|
* which immediately executes all outstanding moves and paints+removes
|
|
* the implicit paint (further paints will allocate their own pixmap).
|
|
*
|
|
* Secondly, in the case of implicit double buffering we expose all
|
|
* the child windows into the implicit pixmap before we execute
|
|
* the outstanding moves. This way we minimize the time between
|
|
* doing the moves and rendering the new update area, thus minimizing
|
|
* flashing. Of course, if any subwindow is non-double buffered we
|
|
* well flush earlier than that.
|
|
*
|
|
* Thirdly, after having done the outstanding moves we queue an
|
|
* "antiexpose" on the area that will be drawn by the expose, which
|
|
* means that any invalid region on the native window side before
|
|
* the first expose drawing operation will be discarded, as it
|
|
* has by then been overdrawn with valid data. This means we can
|
|
* avoid doing the unnecessary repaint any outstanding expose events.
|
|
*/
|
|
|
|
cairo_region_get_extents (update_area, &clip_box);
|
|
end_implicit = gdk_window_begin_implicit_paint (window, &clip_box);
|
|
expose_region = cairo_region_copy (update_area);
|
|
if (!end_implicit)
|
|
{
|
|
/* Rendering is not double buffered by gdk, do outstanding
|
|
* moves and queue antiexposure immediately. No need to do
|
|
* any tricks */
|
|
gdk_window_flush_outstanding_moves (window);
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
save_region = impl_iface->queue_antiexpose (window, update_area);
|
|
}
|
|
|
|
/* Render the invalid areas to the implicit paint, by sending exposes.
|
|
* May flush if non-double buffered widget draw. */
|
|
_gdk_windowing_window_process_updates_recurse (window, expose_region);
|
|
|
|
if (end_implicit)
|
|
{
|
|
/* Do moves right before exposes are rendered to the window */
|
|
gdk_window_flush_outstanding_moves (window);
|
|
|
|
/* By this time we know that any outstanding expose for this
|
|
* area is invalid and we can avoid it, so queue an antiexpose.
|
|
* However, it may be that due to an non-double buffered expose
|
|
* we have already started drawing to the window, so it would
|
|
* be to late to anti-expose now. Since this is merely an
|
|
* optimization we just avoid doing it at all in that case.
|
|
*/
|
|
if (private->implicit_paint != NULL &&
|
|
!private->implicit_paint->flushed)
|
|
{
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
save_region = impl_iface->queue_antiexpose (window, update_area);
|
|
}
|
|
|
|
gdk_window_end_implicit_paint (window);
|
|
}
|
|
cairo_region_destroy (expose_region);
|
|
}
|
|
if (!save_region)
|
|
cairo_region_destroy (update_area);
|
|
}
|
|
|
|
if (private->outstanding_moves)
|
|
{
|
|
/* Flush any outstanding moves, may happen if we moved a window but got
|
|
no actual invalid area */
|
|
gdk_window_flush_outstanding_moves (window);
|
|
}
|
|
|
|
g_object_unref (window);
|
|
}
|
|
|
|
static void
|
|
flush_all_displays (void)
|
|
{
|
|
GSList *displays = gdk_display_manager_list_displays (gdk_display_manager_get ());
|
|
GSList *tmp_list;
|
|
|
|
for (tmp_list = displays; tmp_list; tmp_list = tmp_list->next)
|
|
gdk_display_flush (tmp_list->data);
|
|
|
|
g_slist_free (displays);
|
|
}
|
|
|
|
/* Currently it is not possible to override
|
|
* gdk_window_process_all_updates in the same manner as
|
|
* gdk_window_process_updates and gdk_window_invalidate_maybe_recurse
|
|
* by implementing the GdkPaintable interface. If in the future a
|
|
* backend would need this, the right solution would be to add a
|
|
* method to GdkDisplay that can be optionally
|
|
* NULL. gdk_window_process_all_updates can then walk the list of open
|
|
* displays and call the mehod.
|
|
*/
|
|
|
|
/**
|
|
* gdk_window_process_all_updates:
|
|
*
|
|
* Calls gdk_window_process_updates() for all windows (see #GdkWindow)
|
|
* in the application.
|
|
*
|
|
**/
|
|
void
|
|
gdk_window_process_all_updates (void)
|
|
{
|
|
GSList *old_update_windows = update_windows;
|
|
GSList *tmp_list = update_windows;
|
|
static gboolean in_process_all_updates = FALSE;
|
|
static gboolean got_recursive_update = FALSE;
|
|
|
|
if (in_process_all_updates)
|
|
{
|
|
/* We can't do this now since that would recurse, so
|
|
delay it until after the recursion is done. */
|
|
got_recursive_update = TRUE;
|
|
update_idle = 0;
|
|
return;
|
|
}
|
|
|
|
in_process_all_updates = TRUE;
|
|
got_recursive_update = FALSE;
|
|
|
|
if (update_idle)
|
|
g_source_remove (update_idle);
|
|
|
|
update_windows = NULL;
|
|
update_idle = 0;
|
|
|
|
_gdk_windowing_before_process_all_updates ();
|
|
|
|
g_slist_foreach (old_update_windows, (GFunc)g_object_ref, NULL);
|
|
|
|
while (tmp_list)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)tmp_list->data;
|
|
|
|
if (!GDK_WINDOW_DESTROYED (tmp_list->data))
|
|
{
|
|
if (private->update_freeze_count ||
|
|
gdk_window_is_toplevel_frozen (tmp_list->data))
|
|
gdk_window_add_update_window ((GdkWindow *) private);
|
|
else
|
|
gdk_window_process_updates_internal (tmp_list->data);
|
|
}
|
|
|
|
g_object_unref (tmp_list->data);
|
|
tmp_list = tmp_list->next;
|
|
}
|
|
|
|
g_slist_free (old_update_windows);
|
|
|
|
flush_all_displays ();
|
|
|
|
_gdk_windowing_after_process_all_updates ();
|
|
|
|
in_process_all_updates = FALSE;
|
|
|
|
/* If we ignored a recursive call, schedule a
|
|
redraw now so that it eventually happens,
|
|
otherwise we could miss an update if nothing
|
|
else schedules an update. */
|
|
if (got_recursive_update && !update_idle)
|
|
update_idle =
|
|
gdk_threads_add_idle_full (GDK_PRIORITY_REDRAW,
|
|
gdk_window_update_idle,
|
|
NULL, NULL);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_process_updates:
|
|
* @window: a #GdkWindow
|
|
* @update_children: whether to also process updates for child windows
|
|
*
|
|
* Sends one or more expose events to @window. The areas in each
|
|
* expose event will cover the entire update area for the window (see
|
|
* gdk_window_invalidate_region() for details). Normally GDK calls
|
|
* gdk_window_process_all_updates() on your behalf, so there's no
|
|
* need to call this function unless you want to force expose events
|
|
* to be delivered immediately and synchronously (vs. the usual
|
|
* case, where GDK delivers them in an idle handler). Occasionally
|
|
* this is useful to produce nicer scrolling behavior, for example.
|
|
*
|
|
**/
|
|
void
|
|
gdk_window_process_updates (GdkWindow *window,
|
|
gboolean update_children)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkWindowObject *impl_window;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return;
|
|
|
|
/* Make sure the window lives during the expose callouts */
|
|
g_object_ref (window);
|
|
|
|
impl_window = gdk_window_get_impl_window (private);
|
|
if ((impl_window->update_area ||
|
|
impl_window->outstanding_moves) &&
|
|
!impl_window->update_freeze_count &&
|
|
!gdk_window_is_toplevel_frozen (window) &&
|
|
|
|
/* Don't recurse into process_updates_internal, we'll
|
|
* do the update later when idle instead. */
|
|
impl_window->implicit_paint == NULL)
|
|
{
|
|
gdk_window_process_updates_internal ((GdkWindow *)impl_window);
|
|
gdk_window_remove_update_window ((GdkWindow *)impl_window);
|
|
}
|
|
|
|
if (update_children)
|
|
{
|
|
/* process updates in reverse stacking order so composition or
|
|
* painting over achieves the desired effect for offscreen windows
|
|
*/
|
|
GList *node, *children;
|
|
|
|
children = g_list_copy (private->children);
|
|
g_list_foreach (children, (GFunc)g_object_ref, NULL);
|
|
|
|
for (node = g_list_last (children); node; node = node->prev)
|
|
{
|
|
gdk_window_process_updates (node->data, TRUE);
|
|
g_object_unref (node->data);
|
|
}
|
|
|
|
g_list_free (children);
|
|
}
|
|
|
|
g_object_unref (window);
|
|
}
|
|
|
|
static void
|
|
gdk_window_invalidate_rect_full (GdkWindow *window,
|
|
const GdkRectangle *rect,
|
|
gboolean invalidate_children,
|
|
ClearBg clear_bg)
|
|
{
|
|
GdkRectangle window_rect;
|
|
cairo_region_t *region;
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return;
|
|
|
|
if (private->input_only || !private->viewable)
|
|
return;
|
|
|
|
if (!rect)
|
|
{
|
|
window_rect.x = 0;
|
|
window_rect.y = 0;
|
|
gdk_drawable_get_size (GDK_DRAWABLE (window),
|
|
&window_rect.width,
|
|
&window_rect.height);
|
|
rect = &window_rect;
|
|
}
|
|
|
|
region = cairo_region_create_rectangle (rect);
|
|
gdk_window_invalidate_region_full (window, region, invalidate_children, clear_bg);
|
|
cairo_region_destroy (region);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_invalidate_rect:
|
|
* @window: a #GdkWindow
|
|
* @rect: (allow-none): rectangle to invalidate or %NULL to invalidate the whole
|
|
* window
|
|
* @invalidate_children: whether to also invalidate child windows
|
|
*
|
|
* A convenience wrapper around gdk_window_invalidate_region() which
|
|
* invalidates a rectangular region. See
|
|
* gdk_window_invalidate_region() for details.
|
|
**/
|
|
void
|
|
gdk_window_invalidate_rect (GdkWindow *window,
|
|
const GdkRectangle *rect,
|
|
gboolean invalidate_children)
|
|
{
|
|
gdk_window_invalidate_rect_full (window, rect, invalidate_children, CLEAR_BG_NONE);
|
|
}
|
|
|
|
static void
|
|
draw_ugly_color (GdkWindow *window,
|
|
const cairo_region_t *region)
|
|
{
|
|
cairo_t *cr;
|
|
|
|
cr = gdk_cairo_create (window);
|
|
/* Draw ugly color all over the newly-invalid region */
|
|
cairo_set_source_rgb (cr, 50000/65535., 10000/65535., 10000/65535.);
|
|
gdk_cairo_region (cr, region);
|
|
cairo_fill (cr);
|
|
|
|
cairo_destroy (cr);
|
|
}
|
|
|
|
static void
|
|
impl_window_add_update_area (GdkWindowObject *impl_window,
|
|
cairo_region_t *region)
|
|
{
|
|
if (impl_window->update_area)
|
|
cairo_region_union (impl_window->update_area, region);
|
|
else
|
|
{
|
|
gdk_window_add_update_window ((GdkWindow *)impl_window);
|
|
impl_window->update_area = cairo_region_copy (region);
|
|
gdk_window_schedule_update ((GdkWindow *)impl_window);
|
|
}
|
|
}
|
|
|
|
/* clear_bg controls if the region will be cleared to
|
|
* the background color/pixmap if the exposure mask is not
|
|
* set for the window, whereas this might not otherwise be
|
|
* done (unless necessary to emulate background settings).
|
|
* Set this to CLEAR_BG_WINCLEARED or CLEAR_BG_ALL if you
|
|
* need to clear the background, such as when exposing the area beneath a
|
|
* hidden or moved window, but not when an app requests repaint or when the
|
|
* windowing system exposes a newly visible area (because then the windowing
|
|
* system has already cleared the area).
|
|
*/
|
|
static void
|
|
gdk_window_invalidate_maybe_recurse_full (GdkWindow *window,
|
|
const cairo_region_t *region,
|
|
ClearBg clear_bg,
|
|
gboolean (*child_func) (GdkWindow *,
|
|
gpointer),
|
|
gpointer user_data)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkWindowObject *impl_window;
|
|
cairo_region_t *visible_region;
|
|
GList *tmp_list;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return;
|
|
|
|
if (private->input_only ||
|
|
!private->viewable ||
|
|
cairo_region_is_empty (region) ||
|
|
private->window_type == GDK_WINDOW_ROOT)
|
|
return;
|
|
|
|
visible_region = gdk_drawable_get_visible_region (window);
|
|
cairo_region_intersect (visible_region, region);
|
|
|
|
tmp_list = private->children;
|
|
while (tmp_list)
|
|
{
|
|
GdkWindowObject *child = tmp_list->data;
|
|
|
|
if (!child->input_only)
|
|
{
|
|
cairo_region_t *child_region;
|
|
GdkRectangle child_rect;
|
|
|
|
child_rect.x = child->x;
|
|
child_rect.y = child->y;
|
|
child_rect.width = child->width;
|
|
child_rect.height = child->height;
|
|
child_region = cairo_region_create_rectangle (&child_rect);
|
|
|
|
/* remove child area from the invalid area of the parent */
|
|
if (GDK_WINDOW_IS_MAPPED (child) && !child->shaped &&
|
|
!child->composited &&
|
|
!gdk_window_is_offscreen (child))
|
|
cairo_region_subtract (visible_region, child_region);
|
|
|
|
if (child_func && (*child_func) ((GdkWindow *)child, user_data))
|
|
{
|
|
cairo_region_t *tmp = cairo_region_copy (region);
|
|
|
|
cairo_region_translate (tmp, - child_rect.x, - child_rect.y);
|
|
cairo_region_translate (child_region, - child_rect.x, - child_rect.y);
|
|
cairo_region_intersect (child_region, tmp);
|
|
|
|
gdk_window_invalidate_maybe_recurse_full ((GdkWindow *)child,
|
|
child_region, clear_bg, child_func, user_data);
|
|
|
|
cairo_region_destroy (tmp);
|
|
}
|
|
|
|
cairo_region_destroy (child_region);
|
|
}
|
|
|
|
tmp_list = tmp_list->next;
|
|
}
|
|
|
|
impl_window = gdk_window_get_impl_window (private);
|
|
|
|
if (!cairo_region_is_empty (visible_region) ||
|
|
/* Even if we're not exposing anything, make sure we process
|
|
idles for windows with outstanding moves */
|
|
(impl_window->outstanding_moves != NULL &&
|
|
impl_window->update_area == NULL))
|
|
{
|
|
if (debug_updates)
|
|
draw_ugly_color (window, region);
|
|
|
|
/* Convert to impl coords */
|
|
cairo_region_translate (visible_region, private->abs_x, private->abs_y);
|
|
|
|
/* Only invalidate area if app requested expose events or if
|
|
we need to clear the area (by request or to emulate background
|
|
clearing for non-native windows or native windows with no support
|
|
for window backgrounds */
|
|
if (private->event_mask & GDK_EXPOSURE_MASK ||
|
|
clear_bg == CLEAR_BG_ALL ||
|
|
(clear_bg == CLEAR_BG_WINCLEARED &&
|
|
(!clears_as_native (private) ||
|
|
!GDK_WINDOW_IMPL_GET_IFACE (private->impl)->supports_native_bg)))
|
|
impl_window_add_update_area (impl_window, visible_region);
|
|
}
|
|
|
|
cairo_region_destroy (visible_region);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_invalidate_maybe_recurse:
|
|
* @window: a #GdkWindow
|
|
* @region: a #cairo_region_t
|
|
* @child_func: function to use to decide if to recurse to a child,
|
|
* %NULL means never recurse.
|
|
* @user_data: data passed to @child_func
|
|
*
|
|
* Adds @region to the update area for @window. The update area is the
|
|
* region that needs to be redrawn, or "dirty region." The call
|
|
* gdk_window_process_updates() sends one or more expose events to the
|
|
* window, which together cover the entire update area. An
|
|
* application would normally redraw the contents of @window in
|
|
* response to those expose events.
|
|
*
|
|
* GDK will call gdk_window_process_all_updates() on your behalf
|
|
* whenever your program returns to the main loop and becomes idle, so
|
|
* normally there's no need to do that manually, you just need to
|
|
* invalidate regions that you know should be redrawn.
|
|
*
|
|
* The @child_func parameter controls whether the region of
|
|
* each child window that intersects @region will also be invalidated.
|
|
* Only children for which @child_func returns TRUE will have the area
|
|
* invalidated.
|
|
**/
|
|
void
|
|
gdk_window_invalidate_maybe_recurse (GdkWindow *window,
|
|
const cairo_region_t *region,
|
|
gboolean (*child_func) (GdkWindow *,
|
|
gpointer),
|
|
gpointer user_data)
|
|
{
|
|
gdk_window_invalidate_maybe_recurse_full (window, region, CLEAR_BG_NONE,
|
|
child_func, user_data);
|
|
}
|
|
|
|
static gboolean
|
|
true_predicate (GdkWindow *window,
|
|
gpointer user_data)
|
|
{
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gdk_window_invalidate_region_full (GdkWindow *window,
|
|
const cairo_region_t *region,
|
|
gboolean invalidate_children,
|
|
ClearBg clear_bg)
|
|
{
|
|
gdk_window_invalidate_maybe_recurse_full (window, region, clear_bg,
|
|
invalidate_children ?
|
|
true_predicate : (gboolean (*) (GdkWindow *, gpointer))NULL,
|
|
NULL);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_invalidate_region:
|
|
* @window: a #GdkWindow
|
|
* @region: a #cairo_region_t
|
|
* @invalidate_children: %TRUE to also invalidate child windows
|
|
*
|
|
* Adds @region to the update area for @window. The update area is the
|
|
* region that needs to be redrawn, or "dirty region." The call
|
|
* gdk_window_process_updates() sends one or more expose events to the
|
|
* window, which together cover the entire update area. An
|
|
* application would normally redraw the contents of @window in
|
|
* response to those expose events.
|
|
*
|
|
* GDK will call gdk_window_process_all_updates() on your behalf
|
|
* whenever your program returns to the main loop and becomes idle, so
|
|
* normally there's no need to do that manually, you just need to
|
|
* invalidate regions that you know should be redrawn.
|
|
*
|
|
* The @invalidate_children parameter controls whether the region of
|
|
* each child window that intersects @region will also be invalidated.
|
|
* If %FALSE, then the update area for child windows will remain
|
|
* unaffected. See gdk_window_invalidate_maybe_recurse if you need
|
|
* fine grained control over which children are invalidated.
|
|
**/
|
|
void
|
|
gdk_window_invalidate_region (GdkWindow *window,
|
|
const cairo_region_t *region,
|
|
gboolean invalidate_children)
|
|
{
|
|
gdk_window_invalidate_maybe_recurse (window, region,
|
|
invalidate_children ?
|
|
true_predicate : (gboolean (*) (GdkWindow *, gpointer))NULL,
|
|
NULL);
|
|
}
|
|
|
|
/**
|
|
* _gdk_window_invalidate_for_expose:
|
|
* @window: a #GdkWindow
|
|
* @region: a #cairo_region_t
|
|
*
|
|
* Adds @region to the update area for @window. The update area is the
|
|
* region that needs to be redrawn, or "dirty region." The call
|
|
* gdk_window_process_updates() sends one or more expose events to the
|
|
* window, which together cover the entire update area. An
|
|
* application would normally redraw the contents of @window in
|
|
* response to those expose events.
|
|
*
|
|
* GDK will call gdk_window_process_all_updates() on your behalf
|
|
* whenever your program returns to the main loop and becomes idle, so
|
|
* normally there's no need to do that manually, you just need to
|
|
* invalidate regions that you know should be redrawn.
|
|
*
|
|
* This version of invalidation is used when you recieve expose events
|
|
* from the native window system. It exposes the native window, plus
|
|
* any non-native child windows (but not native child windows, as those would
|
|
* have gotten their own expose events).
|
|
**/
|
|
void
|
|
_gdk_window_invalidate_for_expose (GdkWindow *window,
|
|
cairo_region_t *region)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *) window;
|
|
GdkWindowRegionMove *move;
|
|
cairo_region_t *move_region;
|
|
GList *l;
|
|
|
|
/* Any invalidations comming from the windowing system will
|
|
be in areas that may be moved by outstanding moves,
|
|
so we need to modify the expose region correspondingly,
|
|
otherwise we would expose in the wrong place, as the
|
|
outstanding moves will be copied before we draw the
|
|
exposes. */
|
|
for (l = private->outstanding_moves; l != NULL; l = l->next)
|
|
{
|
|
move = l->data;
|
|
|
|
/* covert to move source region */
|
|
move_region = cairo_region_copy (move->dest_region);
|
|
cairo_region_translate (move_region, -move->dx, -move->dy);
|
|
|
|
/* Move area of region that intersects with move source
|
|
by dx, dy of the move*/
|
|
cairo_region_intersect (move_region, region);
|
|
cairo_region_subtract (region, move_region);
|
|
cairo_region_translate (move_region, move->dx, move->dy);
|
|
cairo_region_union (region, move_region);
|
|
|
|
cairo_region_destroy (move_region);
|
|
}
|
|
|
|
gdk_window_invalidate_maybe_recurse_full (window, region, CLEAR_BG_WINCLEARED,
|
|
(gboolean (*) (GdkWindow *, gpointer))gdk_window_has_no_impl,
|
|
NULL);
|
|
}
|
|
|
|
|
|
/**
|
|
* gdk_window_get_update_area:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Transfers ownership of the update area from @window to the caller
|
|
* of the function. That is, after calling this function, @window will
|
|
* no longer have an invalid/dirty region; the update area is removed
|
|
* from @window and handed to you. If a window has no update area,
|
|
* gdk_window_get_update_area() returns %NULL. You are responsible for
|
|
* calling cairo_region_destroy() on the returned region if it's non-%NULL.
|
|
*
|
|
* Return value: the update area for @window
|
|
**/
|
|
cairo_region_t *
|
|
gdk_window_get_update_area (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkWindowObject *impl_window;
|
|
cairo_region_t *tmp_region;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
|
|
|
impl_window = gdk_window_get_impl_window (private);
|
|
|
|
if (impl_window->update_area)
|
|
{
|
|
tmp_region = cairo_region_copy (private->clip_region_with_children);
|
|
/* Convert to impl coords */
|
|
cairo_region_translate (tmp_region, private->abs_x, private->abs_y);
|
|
cairo_region_intersect (tmp_region, impl_window->update_area);
|
|
|
|
if (cairo_region_is_empty (tmp_region))
|
|
{
|
|
cairo_region_destroy (tmp_region);
|
|
return NULL;
|
|
}
|
|
else
|
|
{
|
|
cairo_region_subtract (impl_window->update_area, tmp_region);
|
|
|
|
if (cairo_region_is_empty (impl_window->update_area) &&
|
|
impl_window->outstanding_moves == NULL)
|
|
{
|
|
cairo_region_destroy (impl_window->update_area);
|
|
impl_window->update_area = NULL;
|
|
|
|
gdk_window_remove_update_window ((GdkWindow *)impl_window);
|
|
}
|
|
|
|
/* Convert from impl coords */
|
|
cairo_region_translate (tmp_region, -private->abs_x, -private->abs_y);
|
|
return tmp_region;
|
|
|
|
}
|
|
}
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* _gdk_window_clear_update_area:
|
|
* @window: a #GdkWindow.
|
|
*
|
|
* Internal function to clear the update area for a window. This
|
|
* is called when the window is hidden or destroyed.
|
|
**/
|
|
void
|
|
_gdk_window_clear_update_area (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
if (private->update_area)
|
|
{
|
|
gdk_window_remove_update_window (window);
|
|
|
|
cairo_region_destroy (private->update_area);
|
|
private->update_area = NULL;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gdk_window_freeze_updates:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Temporarily freezes a window such that it won't receive expose
|
|
* events. The window will begin receiving expose events again when
|
|
* gdk_window_thaw_updates() is called. If gdk_window_freeze_updates()
|
|
* has been called more than once, gdk_window_thaw_updates() must be called
|
|
* an equal number of times to begin processing exposes.
|
|
**/
|
|
void
|
|
gdk_window_freeze_updates (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkWindowObject *impl_window;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
impl_window = gdk_window_get_impl_window (private);
|
|
impl_window->update_freeze_count++;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_thaw_updates:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Thaws a window frozen with gdk_window_freeze_updates().
|
|
**/
|
|
void
|
|
gdk_window_thaw_updates (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkWindowObject *impl_window;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
impl_window = gdk_window_get_impl_window (private);
|
|
|
|
g_return_if_fail (impl_window->update_freeze_count > 0);
|
|
|
|
if (--impl_window->update_freeze_count == 0)
|
|
gdk_window_schedule_update (GDK_WINDOW (impl_window));
|
|
}
|
|
|
|
/**
|
|
* gdk_window_freeze_toplevel_updates_libgtk_only:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Temporarily freezes a window and all its descendants such that it won't
|
|
* receive expose events. The window will begin receiving expose events
|
|
* again when gdk_window_thaw_toplevel_updates_libgtk_only() is called. If
|
|
* gdk_window_freeze_toplevel_updates_libgtk_only()
|
|
* has been called more than once,
|
|
* gdk_window_thaw_toplevel_updates_libgtk_only() must be called
|
|
* an equal number of times to begin processing exposes.
|
|
*
|
|
* This function is not part of the GDK public API and is only
|
|
* for use by GTK+.
|
|
**/
|
|
void
|
|
gdk_window_freeze_toplevel_updates_libgtk_only (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
g_return_if_fail (private->window_type != GDK_WINDOW_CHILD);
|
|
|
|
private->update_and_descendants_freeze_count++;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_thaw_toplevel_updates_libgtk_only:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Thaws a window frozen with
|
|
* gdk_window_freeze_toplevel_updates_libgtk_only().
|
|
*
|
|
* This function is not part of the GDK public API and is only
|
|
* for use by GTK+.
|
|
**/
|
|
void
|
|
gdk_window_thaw_toplevel_updates_libgtk_only (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
g_return_if_fail (private->window_type != GDK_WINDOW_CHILD);
|
|
g_return_if_fail (private->update_and_descendants_freeze_count > 0);
|
|
|
|
private->update_and_descendants_freeze_count--;
|
|
|
|
gdk_window_schedule_update (window);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_set_debug_updates:
|
|
* @setting: %TRUE to turn on update debugging
|
|
*
|
|
* With update debugging enabled, calls to
|
|
* gdk_window_invalidate_region() clear the invalidated region of the
|
|
* screen to a noticeable color, and GDK pauses for a short time
|
|
* before sending exposes to windows during
|
|
* gdk_window_process_updates(). The net effect is that you can see
|
|
* the invalid region for each window and watch redraws as they
|
|
* occur. This allows you to diagnose inefficiencies in your application.
|
|
*
|
|
* In essence, because the GDK rendering model prevents all flicker,
|
|
* if you are redrawing the same region 400 times you may never
|
|
* notice, aside from noticing a speed problem. Enabling update
|
|
* debugging causes GTK to flicker slowly and noticeably, so you can
|
|
* see exactly what's being redrawn when, in what order.
|
|
*
|
|
* The --gtk-debug=updates command line option passed to GTK+ programs
|
|
* enables this debug option at application startup time. That's
|
|
* usually more useful than calling gdk_window_set_debug_updates()
|
|
* yourself, though you might want to use this function to enable
|
|
* updates sometime after application startup time.
|
|
*
|
|
**/
|
|
void
|
|
gdk_window_set_debug_updates (gboolean setting)
|
|
{
|
|
debug_updates = setting;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_constrain_size:
|
|
* @geometry: a #GdkGeometry structure
|
|
* @flags: a mask indicating what portions of @geometry are set
|
|
* @width: desired width of window
|
|
* @height: desired height of the window
|
|
* @new_width: location to store resulting width
|
|
* @new_height: location to store resulting height
|
|
*
|
|
* Constrains a desired width and height according to a
|
|
* set of geometry hints (such as minimum and maximum size).
|
|
*/
|
|
void
|
|
gdk_window_constrain_size (GdkGeometry *geometry,
|
|
guint flags,
|
|
gint width,
|
|
gint height,
|
|
gint *new_width,
|
|
gint *new_height)
|
|
{
|
|
/* This routine is partially borrowed from fvwm.
|
|
*
|
|
* Copyright 1993, Robert Nation
|
|
* You may use this code for any purpose, as long as the original
|
|
* copyright remains in the source code and all documentation
|
|
*
|
|
* which in turn borrows parts of the algorithm from uwm
|
|
*/
|
|
gint min_width = 0;
|
|
gint min_height = 0;
|
|
gint base_width = 0;
|
|
gint base_height = 0;
|
|
gint xinc = 1;
|
|
gint yinc = 1;
|
|
gint max_width = G_MAXINT;
|
|
gint max_height = G_MAXINT;
|
|
|
|
#define FLOOR(value, base) ( ((gint) ((value) / (base))) * (base) )
|
|
|
|
if ((flags & GDK_HINT_BASE_SIZE) && (flags & GDK_HINT_MIN_SIZE))
|
|
{
|
|
base_width = geometry->base_width;
|
|
base_height = geometry->base_height;
|
|
min_width = geometry->min_width;
|
|
min_height = geometry->min_height;
|
|
}
|
|
else if (flags & GDK_HINT_BASE_SIZE)
|
|
{
|
|
base_width = geometry->base_width;
|
|
base_height = geometry->base_height;
|
|
min_width = geometry->base_width;
|
|
min_height = geometry->base_height;
|
|
}
|
|
else if (flags & GDK_HINT_MIN_SIZE)
|
|
{
|
|
base_width = geometry->min_width;
|
|
base_height = geometry->min_height;
|
|
min_width = geometry->min_width;
|
|
min_height = geometry->min_height;
|
|
}
|
|
|
|
if (flags & GDK_HINT_MAX_SIZE)
|
|
{
|
|
max_width = geometry->max_width ;
|
|
max_height = geometry->max_height;
|
|
}
|
|
|
|
if (flags & GDK_HINT_RESIZE_INC)
|
|
{
|
|
xinc = MAX (xinc, geometry->width_inc);
|
|
yinc = MAX (yinc, geometry->height_inc);
|
|
}
|
|
|
|
/* clamp width and height to min and max values
|
|
*/
|
|
width = CLAMP (width, min_width, max_width);
|
|
height = CLAMP (height, min_height, max_height);
|
|
|
|
/* shrink to base + N * inc
|
|
*/
|
|
width = base_width + FLOOR (width - base_width, xinc);
|
|
height = base_height + FLOOR (height - base_height, yinc);
|
|
|
|
/* constrain aspect ratio, according to:
|
|
*
|
|
* width
|
|
* min_aspect <= -------- <= max_aspect
|
|
* height
|
|
*/
|
|
|
|
if (flags & GDK_HINT_ASPECT &&
|
|
geometry->min_aspect > 0 &&
|
|
geometry->max_aspect > 0)
|
|
{
|
|
gint delta;
|
|
|
|
if (geometry->min_aspect * height > width)
|
|
{
|
|
delta = FLOOR (height - width / geometry->min_aspect, yinc);
|
|
if (height - delta >= min_height)
|
|
height -= delta;
|
|
else
|
|
{
|
|
delta = FLOOR (height * geometry->min_aspect - width, xinc);
|
|
if (width + delta <= max_width)
|
|
width += delta;
|
|
}
|
|
}
|
|
|
|
if (geometry->max_aspect * height < width)
|
|
{
|
|
delta = FLOOR (width - height * geometry->max_aspect, xinc);
|
|
if (width - delta >= min_width)
|
|
width -= delta;
|
|
else
|
|
{
|
|
delta = FLOOR (width / geometry->max_aspect - height, yinc);
|
|
if (height + delta <= max_height)
|
|
height += delta;
|
|
}
|
|
}
|
|
}
|
|
|
|
#undef FLOOR
|
|
|
|
*new_width = width;
|
|
*new_height = height;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_pointer:
|
|
* @window: a #GdkWindow
|
|
* @x: (out) (allow-none): return location for X coordinate of pointer or %NULL to not
|
|
* return the X coordinate
|
|
* @y: (out) (allow-none): return location for Y coordinate of pointer or %NULL to not
|
|
* return the Y coordinate
|
|
* @mask: (out) (allow-none): return location for modifier mask or %NULL to not return the
|
|
* modifier mask
|
|
*
|
|
* Obtains the current pointer position and modifier state.
|
|
* The position is given in coordinates relative to the upper left
|
|
* corner of @window.
|
|
*
|
|
* Return value: (transfer none): the window containing the pointer (as with
|
|
* gdk_window_at_pointer()), or %NULL if the window containing the
|
|
* pointer isn't known to GDK
|
|
*
|
|
* Deprecated: 3.0: Use gdk_window_get_device_position() instead.
|
|
**/
|
|
GdkWindow*
|
|
gdk_window_get_pointer (GdkWindow *window,
|
|
gint *x,
|
|
gint *y,
|
|
GdkModifierType *mask)
|
|
{
|
|
GdkDisplay *display;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
|
|
|
display = gdk_drawable_get_display (window);
|
|
|
|
return gdk_window_get_device_position (window, display->core_pointer, x, y, mask);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_device_position:
|
|
* @window: a #GdkWindow.
|
|
* @device: #GdkDevice to query to.
|
|
* @x: (out) (allow-none): return location for the X coordinate of @device, or %NULL.
|
|
* @y: (out) (allow-none): return location for the Y coordinate of @device, or %NULL.
|
|
* @mask: (out) (allow-none): return location for the modifier mask, or %NULL.
|
|
*
|
|
* Obtains the current device position and modifier state.
|
|
* The position is given in coordinates relative to the upper left
|
|
* corner of @window.
|
|
*
|
|
* Return value: (transfer none): The window underneath @device (as with
|
|
* gdk_display_get_window_at_device_position()), or %NULL if the
|
|
* window is not known to GDK.
|
|
*
|
|
* Since: 3.0
|
|
**/
|
|
GdkWindow *
|
|
gdk_window_get_device_position (GdkWindow *window,
|
|
GdkDevice *device,
|
|
gint *x,
|
|
gint *y,
|
|
GdkModifierType *mask)
|
|
{
|
|
GdkDisplay *display;
|
|
gint tmp_x, tmp_y;
|
|
GdkModifierType tmp_mask;
|
|
GdkWindow *child;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
|
g_return_val_if_fail (GDK_IS_DEVICE (device), NULL);
|
|
|
|
display = gdk_drawable_get_display (window);
|
|
child = display->device_hooks->window_get_device_position (display, device, window,
|
|
&tmp_x, &tmp_y, &tmp_mask);
|
|
|
|
if (x)
|
|
*x = tmp_x;
|
|
if (y)
|
|
*y = tmp_y;
|
|
if (mask)
|
|
*mask = tmp_mask;
|
|
|
|
_gdk_display_enable_motion_hints (display, device);
|
|
|
|
return child;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_at_pointer:
|
|
* @win_x: (out) (allow-none): return location for origin of the window under the pointer
|
|
* @win_y: (out) (allow-none): return location for origin of the window under the pointer
|
|
*
|
|
* Obtains the window underneath the mouse pointer, returning the
|
|
* location of that window in @win_x, @win_y. Returns %NULL if the
|
|
* window under the mouse pointer is not known to GDK (if the window
|
|
* belongs to another application and a #GdkWindow hasn't been created
|
|
* for it with gdk_window_foreign_new())
|
|
*
|
|
* NOTE: For multihead-aware widgets or applications use
|
|
* gdk_display_get_window_at_pointer() instead.
|
|
*
|
|
* Return value: (transfer none): window under the mouse pointer
|
|
*
|
|
* Deprecated: 3.0: Use gdk_display_get_window_at_device_position() instead.
|
|
**/
|
|
GdkWindow*
|
|
gdk_window_at_pointer (gint *win_x,
|
|
gint *win_y)
|
|
{
|
|
return gdk_display_get_window_at_pointer (gdk_display_get_default (), win_x, win_y);
|
|
}
|
|
|
|
/**
|
|
* gdk_get_default_root_window:
|
|
*
|
|
* Obtains the root window (parent all other windows are inside)
|
|
* for the default display and screen.
|
|
*
|
|
* Return value: the default root window
|
|
**/
|
|
GdkWindow *
|
|
gdk_get_default_root_window (void)
|
|
{
|
|
return gdk_screen_get_root_window (gdk_screen_get_default ());
|
|
}
|
|
|
|
/**
|
|
* gdk_window_foreign_new:
|
|
* @anid: a native window handle.
|
|
*
|
|
* Wraps a native window for the default display in a #GdkWindow.
|
|
* This may fail if the window has been destroyed.
|
|
*
|
|
* For example in the X backend, a native window handle is an Xlib
|
|
* <type>XID</type>.
|
|
*
|
|
* Return value: the newly-created #GdkWindow wrapper for the
|
|
* native window or %NULL if the window has been destroyed.
|
|
**/
|
|
GdkWindow *
|
|
gdk_window_foreign_new (GdkNativeWindow anid)
|
|
{
|
|
return gdk_window_foreign_new_for_display (gdk_display_get_default (), anid);
|
|
}
|
|
|
|
static void
|
|
get_all_native_children (GdkWindowObject *private,
|
|
GList **native)
|
|
{
|
|
GdkWindowObject *child;
|
|
GList *l;
|
|
|
|
for (l = private->children; l != NULL; l = l->next)
|
|
{
|
|
child = l->data;
|
|
|
|
if (gdk_window_has_impl (child))
|
|
*native = g_list_prepend (*native, child);
|
|
else
|
|
get_all_native_children (child, native);
|
|
}
|
|
}
|
|
|
|
|
|
static inline void
|
|
gdk_window_raise_internal (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkWindowObject *parent = private->parent;
|
|
GdkWindowObject *above;
|
|
GList *native_children;
|
|
GList *l, listhead;
|
|
GdkWindowImplIface *impl_iface;
|
|
|
|
if (parent)
|
|
{
|
|
parent->children = g_list_remove (parent->children, window);
|
|
parent->children = g_list_prepend (parent->children, window);
|
|
}
|
|
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
/* Just do native raise for toplevels */
|
|
if (gdk_window_is_toplevel (private) ||
|
|
/* The restack_under codepath should work correctly even if the parent
|
|
is native, but it relies on the order of ->children to be correct,
|
|
and some apps like SWT reorder the x windows without gdks knowledge,
|
|
so we use raise directly in order to make these behave as before
|
|
when using native windows */
|
|
(gdk_window_has_impl (private) && gdk_window_has_impl (parent)))
|
|
{
|
|
impl_iface->raise (window);
|
|
}
|
|
else if (gdk_window_has_impl (private))
|
|
{
|
|
above = find_native_sibling_above (parent, private);
|
|
if (above)
|
|
{
|
|
listhead.data = window;
|
|
listhead.next = NULL;
|
|
listhead.prev = NULL;
|
|
impl_iface->restack_under ((GdkWindow *)above,
|
|
&listhead);
|
|
}
|
|
else
|
|
impl_iface->raise (window);
|
|
}
|
|
else
|
|
{
|
|
native_children = NULL;
|
|
get_all_native_children (private, &native_children);
|
|
if (native_children != NULL)
|
|
{
|
|
above = find_native_sibling_above (parent, private);
|
|
|
|
if (above)
|
|
impl_iface->restack_under ((GdkWindow *)above,
|
|
native_children);
|
|
else
|
|
{
|
|
/* Right order, since native_children is bottom-topmost first */
|
|
for (l = native_children; l != NULL; l = l->next)
|
|
impl_iface->raise (l->data);
|
|
}
|
|
|
|
g_list_free (native_children);
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
/* Returns TRUE If the native window was mapped or unmapped */
|
|
static gboolean
|
|
set_viewable (GdkWindowObject *w,
|
|
gboolean val)
|
|
{
|
|
GdkWindowObject *child;
|
|
GdkWindowImplIface *impl_iface;
|
|
GList *l;
|
|
|
|
if (w->viewable == val)
|
|
return FALSE;
|
|
|
|
w->viewable = val;
|
|
|
|
if (val)
|
|
recompute_visible_regions (w, FALSE, FALSE);
|
|
|
|
for (l = w->children; l != NULL; l = l->next)
|
|
{
|
|
child = l->data;
|
|
|
|
if (GDK_WINDOW_IS_MAPPED (child) &&
|
|
child->window_type != GDK_WINDOW_FOREIGN)
|
|
set_viewable (child, val);
|
|
}
|
|
|
|
if (!_gdk_native_windows &&
|
|
gdk_window_has_impl (w) &&
|
|
w->window_type != GDK_WINDOW_FOREIGN &&
|
|
!gdk_window_is_toplevel (w))
|
|
{
|
|
/* For most native windows we show/hide them not when they are
|
|
* mapped/unmapped, because that may not produce the correct results.
|
|
* For instance, if a native window have a non-native parent which is
|
|
* hidden, but its native parent is viewable then showing the window
|
|
* would make it viewable to X but its not viewable wrt the non-native
|
|
* hierarchy. In order to handle this we track the gdk side viewability
|
|
* and only map really viewable windows.
|
|
*
|
|
* There are two exceptions though:
|
|
*
|
|
* For foreign windows we don't want ever change the mapped state
|
|
* except when explicitly done via gdk_window_show/hide, as this may
|
|
* cause problems for client owning the foreign window when its window
|
|
* is suddenly mapped or unmapped.
|
|
*
|
|
* For toplevel windows embedded in a foreign window (e.g. a plug)
|
|
* we sometimes synthesize a map of a window, but the native
|
|
* window is really shown by the embedder, so we don't want to
|
|
* do the show ourselves. We can't really tell this case from the normal
|
|
* toplevel show as such toplevels are seen by gdk as parents of the
|
|
* root window, so we make an exception for all toplevels.
|
|
*
|
|
* Also, when in GDK_NATIVE_WINDOW mode we never need to play games
|
|
* like this, so we just always show/hide directly.
|
|
*/
|
|
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (w->impl);
|
|
if (val)
|
|
impl_iface->show ((GdkWindow *)w, FALSE);
|
|
else
|
|
impl_iface->hide ((GdkWindow *)w);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/* Returns TRUE If the native window was mapped or unmapped */
|
|
gboolean
|
|
_gdk_window_update_viewable (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *priv = (GdkWindowObject *)window;
|
|
gboolean viewable;
|
|
|
|
if (priv->window_type == GDK_WINDOW_FOREIGN ||
|
|
priv->window_type == GDK_WINDOW_ROOT)
|
|
viewable = TRUE;
|
|
else if (gdk_window_is_toplevel (priv) ||
|
|
priv->parent->viewable)
|
|
viewable = GDK_WINDOW_IS_MAPPED (priv);
|
|
else
|
|
viewable = FALSE;
|
|
|
|
return set_viewable (priv, viewable);
|
|
}
|
|
|
|
static void
|
|
gdk_window_show_internal (GdkWindow *window, gboolean raise)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkWindowImplIface *impl_iface;
|
|
gboolean was_mapped, was_viewable;
|
|
gboolean did_show;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
if (private->destroyed)
|
|
return;
|
|
|
|
was_mapped = GDK_WINDOW_IS_MAPPED (window);
|
|
was_viewable = private->viewable;
|
|
|
|
if (raise)
|
|
/* Keep children in (reverse) stacking order */
|
|
gdk_window_raise_internal (window);
|
|
|
|
if (gdk_window_has_impl (private))
|
|
{
|
|
if (!was_mapped)
|
|
gdk_synthesize_window_state (window,
|
|
GDK_WINDOW_STATE_WITHDRAWN,
|
|
0);
|
|
}
|
|
else
|
|
{
|
|
private->state = 0;
|
|
}
|
|
|
|
did_show = _gdk_window_update_viewable (window);
|
|
|
|
/* If it was already viewable the backend show op won't be called, call it
|
|
again to ensure things happen right if the mapped tracking was not right
|
|
for e.g. a foreign window.
|
|
Dunno if this is strictly needed but its what happened pre-csw.
|
|
Also show if not done by gdk_window_update_viewable. */
|
|
if (gdk_window_has_impl (private) && (was_viewable || !did_show))
|
|
{
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
impl_iface->show ((GdkWindow *)private,
|
|
!did_show ? was_mapped : TRUE);
|
|
}
|
|
|
|
if (!was_mapped && !gdk_window_has_impl (private))
|
|
{
|
|
if (private->event_mask & GDK_STRUCTURE_MASK)
|
|
_gdk_make_event (GDK_WINDOW (private), GDK_MAP, NULL, FALSE);
|
|
|
|
if (private->parent && private->parent->event_mask & GDK_SUBSTRUCTURE_MASK)
|
|
_gdk_make_event (GDK_WINDOW (private), GDK_MAP, NULL, FALSE);
|
|
}
|
|
|
|
if (!was_mapped || raise)
|
|
{
|
|
recompute_visible_regions (private, TRUE, FALSE);
|
|
|
|
/* If any decendants became visible we need to send visibility notify */
|
|
gdk_window_update_visibility_recursively (private, NULL);
|
|
|
|
if (gdk_window_is_viewable (window))
|
|
{
|
|
_gdk_synthesize_crossing_events_for_geometry_change (window);
|
|
gdk_window_invalidate_rect_full (window, NULL, TRUE, CLEAR_BG_ALL);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gdk_window_show_unraised:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Shows a #GdkWindow onscreen, but does not modify its stacking
|
|
* order. In contrast, gdk_window_show() will raise the window
|
|
* to the top of the window stack.
|
|
*
|
|
* On the X11 platform, in Xlib terms, this function calls
|
|
* XMapWindow() (it also updates some internal GDK state, which means
|
|
* that you can't really use XMapWindow() directly on a GDK window).
|
|
*/
|
|
void
|
|
gdk_window_show_unraised (GdkWindow *window)
|
|
{
|
|
gdk_window_show_internal (window, FALSE);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_raise:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Raises @window to the top of the Z-order (stacking order), so that
|
|
* other windows with the same parent window appear below @window.
|
|
* This is true whether or not the windows are visible.
|
|
*
|
|
* If @window is a toplevel, the window manager may choose to deny the
|
|
* request to move the window in the Z-order, gdk_window_raise() only
|
|
* requests the restack, does not guarantee it.
|
|
*/
|
|
void
|
|
gdk_window_raise (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private;
|
|
cairo_region_t *old_region, *new_region;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
if (private->destroyed)
|
|
return;
|
|
|
|
gdk_window_flush_if_exposing (window);
|
|
|
|
old_region = NULL;
|
|
if (gdk_window_is_viewable (window) &&
|
|
!private->input_only)
|
|
old_region = cairo_region_copy (private->clip_region);
|
|
|
|
/* Keep children in (reverse) stacking order */
|
|
gdk_window_raise_internal (window);
|
|
|
|
recompute_visible_regions (private, TRUE, FALSE);
|
|
|
|
if (old_region)
|
|
{
|
|
new_region = cairo_region_copy (private->clip_region);
|
|
|
|
cairo_region_subtract (new_region, old_region);
|
|
gdk_window_invalidate_region_full (window, new_region, TRUE, CLEAR_BG_ALL);
|
|
|
|
cairo_region_destroy (old_region);
|
|
cairo_region_destroy (new_region);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gdk_window_lower_internal (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkWindowObject *parent = private->parent;
|
|
GdkWindowImplIface *impl_iface;
|
|
GdkWindowObject *above;
|
|
GList *native_children;
|
|
GList *l, listhead;
|
|
|
|
if (parent)
|
|
{
|
|
parent->children = g_list_remove (parent->children, window);
|
|
parent->children = g_list_append (parent->children, window);
|
|
}
|
|
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
/* Just do native lower for toplevels */
|
|
if (gdk_window_is_toplevel (private) ||
|
|
/* The restack_under codepath should work correctly even if the parent
|
|
is native, but it relies on the order of ->children to be correct,
|
|
and some apps like SWT reorder the x windows without gdks knowledge,
|
|
so we use lower directly in order to make these behave as before
|
|
when using native windows */
|
|
(gdk_window_has_impl (private) && gdk_window_has_impl (parent)))
|
|
{
|
|
impl_iface->lower (window);
|
|
}
|
|
else if (gdk_window_has_impl (private))
|
|
{
|
|
above = find_native_sibling_above (parent, private);
|
|
if (above)
|
|
{
|
|
listhead.data = window;
|
|
listhead.next = NULL;
|
|
listhead.prev = NULL;
|
|
impl_iface->restack_under ((GdkWindow *)above, &listhead);
|
|
}
|
|
else
|
|
impl_iface->raise (window);
|
|
}
|
|
else
|
|
{
|
|
native_children = NULL;
|
|
get_all_native_children (private, &native_children);
|
|
if (native_children != NULL)
|
|
{
|
|
above = find_native_sibling_above (parent, private);
|
|
|
|
if (above)
|
|
impl_iface->restack_under ((GdkWindow *)above,
|
|
native_children);
|
|
else
|
|
{
|
|
/* Right order, since native_children is bottom-topmost first */
|
|
for (l = native_children; l != NULL; l = l->next)
|
|
impl_iface->raise (l->data);
|
|
}
|
|
|
|
g_list_free (native_children);
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
static void
|
|
gdk_window_invalidate_in_parent (GdkWindowObject *private)
|
|
{
|
|
GdkRectangle r, child;
|
|
|
|
if (gdk_window_is_toplevel (private))
|
|
return;
|
|
|
|
/* get the visible rectangle of the parent */
|
|
r.x = r.y = 0;
|
|
r.width = private->parent->width;
|
|
r.height = private->parent->height;
|
|
|
|
child.x = private->x;
|
|
child.y = private->y;
|
|
child.width = private->width;
|
|
child.height = private->height;
|
|
gdk_rectangle_intersect (&r, &child, &r);
|
|
|
|
gdk_window_invalidate_rect_full (GDK_WINDOW (private->parent), &r, TRUE, CLEAR_BG_ALL);
|
|
}
|
|
|
|
|
|
/**
|
|
* gdk_window_lower:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Lowers @window to the bottom of the Z-order (stacking order), so that
|
|
* other windows with the same parent window appear above @window.
|
|
* This is true whether or not the other windows are visible.
|
|
*
|
|
* If @window is a toplevel, the window manager may choose to deny the
|
|
* request to move the window in the Z-order, gdk_window_lower() only
|
|
* requests the restack, does not guarantee it.
|
|
*
|
|
* Note that gdk_window_show() raises the window again, so don't call this
|
|
* function before gdk_window_show(). (Try gdk_window_show_unraised().)
|
|
*/
|
|
void
|
|
gdk_window_lower (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
if (private->destroyed)
|
|
return;
|
|
|
|
gdk_window_flush_if_exposing (window);
|
|
|
|
/* Keep children in (reverse) stacking order */
|
|
gdk_window_lower_internal (window);
|
|
|
|
recompute_visible_regions (private, TRUE, FALSE);
|
|
|
|
_gdk_synthesize_crossing_events_for_geometry_change (window);
|
|
gdk_window_invalidate_in_parent (private);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_restack:
|
|
* @window: a #GdkWindow
|
|
* @sibling: (allow-none): a #GdkWindow that is a sibling of @window, or %NULL
|
|
* @above: a boolean
|
|
*
|
|
* Changes the position of @window in the Z-order (stacking order), so that
|
|
* it is above @sibling (if @above is %TRUE) or below @sibling (if @above is
|
|
* %FALSE).
|
|
*
|
|
* If @sibling is %NULL, then this either raises (if @above is %TRUE) or
|
|
* lowers the window.
|
|
*
|
|
* If @window is a toplevel, the window manager may choose to deny the
|
|
* request to move the window in the Z-order, gdk_window_restack() only
|
|
* requests the restack, does not guarantee it.
|
|
*
|
|
* Since: 2.18
|
|
*/
|
|
void
|
|
gdk_window_restack (GdkWindow *window,
|
|
GdkWindow *sibling,
|
|
gboolean above)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkWindowImplIface *impl_iface;
|
|
GdkWindowObject *parent;
|
|
GdkWindowObject *above_native;
|
|
GList *sibling_link;
|
|
GList *native_children;
|
|
GList *l, listhead;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
g_return_if_fail (sibling == NULL || GDK_IS_WINDOW (sibling));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
if (private->destroyed)
|
|
return;
|
|
|
|
if (sibling == NULL)
|
|
{
|
|
if (above)
|
|
gdk_window_raise (window);
|
|
else
|
|
gdk_window_lower (window);
|
|
return;
|
|
}
|
|
|
|
gdk_window_flush_if_exposing (window);
|
|
|
|
if (gdk_window_is_toplevel (private))
|
|
{
|
|
g_return_if_fail (gdk_window_is_toplevel (GDK_WINDOW_OBJECT (sibling)));
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
impl_iface->restack_toplevel (window, sibling, above);
|
|
return;
|
|
}
|
|
|
|
parent = private->parent;
|
|
if (parent)
|
|
{
|
|
sibling_link = g_list_find (parent->children, sibling);
|
|
g_return_if_fail (sibling_link != NULL);
|
|
if (sibling_link == NULL)
|
|
return;
|
|
|
|
parent->children = g_list_remove (parent->children, window);
|
|
if (above)
|
|
parent->children = g_list_insert_before (parent->children,
|
|
sibling_link,
|
|
window);
|
|
else
|
|
parent->children = g_list_insert_before (parent->children,
|
|
sibling_link->next,
|
|
window);
|
|
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
if (gdk_window_has_impl (private))
|
|
{
|
|
above_native = find_native_sibling_above (parent, private);
|
|
if (above_native)
|
|
{
|
|
listhead.data = window;
|
|
listhead.next = NULL;
|
|
listhead.prev = NULL;
|
|
impl_iface->restack_under ((GdkWindow *)above_native, &listhead);
|
|
}
|
|
else
|
|
impl_iface->raise (window);
|
|
}
|
|
else
|
|
{
|
|
native_children = NULL;
|
|
get_all_native_children (private, &native_children);
|
|
if (native_children != NULL)
|
|
{
|
|
above_native = find_native_sibling_above (parent, private);
|
|
if (above_native)
|
|
impl_iface->restack_under ((GdkWindow *)above_native,
|
|
native_children);
|
|
else
|
|
{
|
|
/* Right order, since native_children is bottom-topmost first */
|
|
for (l = native_children; l != NULL; l = l->next)
|
|
impl_iface->raise (l->data);
|
|
}
|
|
|
|
g_list_free (native_children);
|
|
}
|
|
}
|
|
}
|
|
|
|
recompute_visible_regions (private, TRUE, FALSE);
|
|
|
|
_gdk_synthesize_crossing_events_for_geometry_change (window);
|
|
gdk_window_invalidate_in_parent (private);
|
|
}
|
|
|
|
|
|
/**
|
|
* gdk_window_show:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Like gdk_window_show_unraised(), but also raises the window to the
|
|
* top of the window stack (moves the window to the front of the
|
|
* Z-order).
|
|
*
|
|
* This function maps a window so it's visible onscreen. Its opposite
|
|
* is gdk_window_hide().
|
|
*
|
|
* When implementing a #GtkWidget, you should call this function on the widget's
|
|
* #GdkWindow as part of the "map" method.
|
|
*/
|
|
void
|
|
gdk_window_show (GdkWindow *window)
|
|
{
|
|
gdk_window_show_internal (window, TRUE);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_hide:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* For toplevel windows, withdraws them, so they will no longer be
|
|
* known to the window manager; for all windows, unmaps them, so
|
|
* they won't be displayed. Normally done automatically as
|
|
* part of gtk_widget_hide().
|
|
*/
|
|
void
|
|
gdk_window_hide (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkWindowImplIface *impl_iface;
|
|
gboolean was_mapped, did_hide;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
if (private->destroyed)
|
|
return;
|
|
|
|
was_mapped = GDK_WINDOW_IS_MAPPED (private);
|
|
|
|
if (gdk_window_has_impl (private))
|
|
{
|
|
|
|
if (GDK_WINDOW_IS_MAPPED (window))
|
|
gdk_synthesize_window_state (window,
|
|
0,
|
|
GDK_WINDOW_STATE_WITHDRAWN);
|
|
}
|
|
else if (was_mapped)
|
|
{
|
|
GdkDisplay *display;
|
|
GdkDeviceManager *device_manager;
|
|
GList *devices, *d;
|
|
|
|
/* May need to break grabs on children */
|
|
display = gdk_drawable_get_display (window);
|
|
device_manager = gdk_display_get_device_manager (display);
|
|
|
|
/* Get all devices */
|
|
devices = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
|
|
devices = g_list_concat (devices, gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_SLAVE));
|
|
devices = g_list_concat (devices, gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_FLOATING));
|
|
|
|
for (d = devices; d; d = d->next)
|
|
{
|
|
GdkDevice *device = d->data;
|
|
|
|
if (_gdk_display_end_device_grab (display, device,
|
|
_gdk_windowing_window_get_next_serial (display),
|
|
window,
|
|
TRUE))
|
|
gdk_device_ungrab (device, GDK_CURRENT_TIME);
|
|
}
|
|
|
|
private->state = GDK_WINDOW_STATE_WITHDRAWN;
|
|
g_list_free (devices);
|
|
}
|
|
|
|
did_hide = _gdk_window_update_viewable (window);
|
|
|
|
/* Hide foreign window as those are not handled by update_viewable. */
|
|
if (gdk_window_has_impl (private) && (!did_hide))
|
|
{
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
impl_iface->hide (window);
|
|
}
|
|
|
|
recompute_visible_regions (private, TRUE, FALSE);
|
|
|
|
/* all decendants became non-visible, we need to send visibility notify */
|
|
gdk_window_update_visibility_recursively (private, NULL);
|
|
|
|
if (was_mapped && !gdk_window_has_impl (private))
|
|
{
|
|
if (private->event_mask & GDK_STRUCTURE_MASK)
|
|
_gdk_make_event (GDK_WINDOW (private), GDK_UNMAP, NULL, FALSE);
|
|
|
|
if (private->parent && private->parent->event_mask & GDK_SUBSTRUCTURE_MASK)
|
|
_gdk_make_event (GDK_WINDOW (private), GDK_UNMAP, NULL, FALSE);
|
|
|
|
_gdk_synthesize_crossing_events_for_geometry_change (GDK_WINDOW (private->parent));
|
|
}
|
|
|
|
/* Invalidate the rect */
|
|
if (was_mapped)
|
|
gdk_window_invalidate_in_parent (private);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_withdraw:
|
|
* @window: a toplevel #GdkWindow
|
|
*
|
|
* Withdraws a window (unmaps it and asks the window manager to forget about it).
|
|
* This function is not really useful as gdk_window_hide() automatically
|
|
* withdraws toplevel windows before hiding them.
|
|
**/
|
|
void
|
|
gdk_window_withdraw (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkWindowImplIface *impl_iface;
|
|
gboolean was_mapped;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
if (private->destroyed)
|
|
return;
|
|
|
|
was_mapped = GDK_WINDOW_IS_MAPPED (private);
|
|
|
|
if (gdk_window_has_impl (private))
|
|
{
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
impl_iface->withdraw (window);
|
|
|
|
if (was_mapped)
|
|
{
|
|
if (private->event_mask & GDK_STRUCTURE_MASK)
|
|
_gdk_make_event (GDK_WINDOW (private), GDK_UNMAP, NULL, FALSE);
|
|
|
|
if (private->parent && private->parent->event_mask & GDK_SUBSTRUCTURE_MASK)
|
|
_gdk_make_event (GDK_WINDOW (private), GDK_UNMAP, NULL, FALSE);
|
|
|
|
_gdk_synthesize_crossing_events_for_geometry_change (GDK_WINDOW (private->parent));
|
|
}
|
|
|
|
recompute_visible_regions (private, TRUE, FALSE);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gdk_window_set_events:
|
|
* @window: a #GdkWindow
|
|
* @event_mask: event mask for @window
|
|
*
|
|
* The event mask for a window determines which events will be reported
|
|
* for that window from all master input devices. For example, an event mask
|
|
* including #GDK_BUTTON_PRESS_MASK means the window should report button
|
|
* press events. The event mask is the bitwise OR of values from the
|
|
* #GdkEventMask enumeration.
|
|
**/
|
|
void
|
|
gdk_window_set_events (GdkWindow *window,
|
|
GdkEventMask event_mask)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkWindowImplIface *impl_iface;
|
|
GdkDisplay *display;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
if (private->destroyed)
|
|
return;
|
|
|
|
/* If motion hint is disabled, enable motion events again */
|
|
display = gdk_drawable_get_display (window);
|
|
if ((private->event_mask & GDK_POINTER_MOTION_HINT_MASK) &&
|
|
!(event_mask & GDK_POINTER_MOTION_HINT_MASK))
|
|
{
|
|
GList *devices = private->devices_inside;
|
|
|
|
while (devices)
|
|
{
|
|
_gdk_display_enable_motion_hints (display, (GdkDevice *) devices->data);
|
|
devices = devices->next;
|
|
}
|
|
}
|
|
|
|
private->event_mask = event_mask;
|
|
|
|
if (gdk_window_has_impl (private))
|
|
{
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
impl_iface->set_events (window,
|
|
get_native_event_mask (private));
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_events:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Gets the event mask for @window for all master input devices. See
|
|
* gdk_window_set_events().
|
|
*
|
|
* Return value: event mask for @window
|
|
**/
|
|
GdkEventMask
|
|
gdk_window_get_events (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
|
|
|
|
private = (GdkWindowObject *) window;
|
|
if (private->destroyed)
|
|
return 0;
|
|
|
|
return private->event_mask;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_set_device_events:
|
|
* @window: a #GdkWindow
|
|
* @device: #GdkDevice to enable events for.
|
|
* @event_mask: event mask for @window
|
|
*
|
|
* Sets the event mask for a given device (Normally a floating device, not
|
|
* attached to any visible pointer) to @window. For example, an event mask
|
|
* including #GDK_BUTTON_PRESS_MASK means the window should report button
|
|
* press events. The event mask is the bitwise OR of values from the
|
|
* #GdkEventMask enumeration.
|
|
*
|
|
* Since: 3.0
|
|
**/
|
|
void
|
|
gdk_window_set_device_events (GdkWindow *window,
|
|
GdkDevice *device,
|
|
GdkEventMask event_mask)
|
|
{
|
|
GdkEventMask device_mask;
|
|
GdkWindowObject *private;
|
|
GdkDisplay *display;
|
|
GdkWindow *native;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
g_return_if_fail (GDK_IS_DEVICE (device));
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return;
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
/* If motion hint is disabled, enable motion events again */
|
|
display = gdk_drawable_get_display (window);
|
|
if ((private->event_mask & GDK_POINTER_MOTION_HINT_MASK) &&
|
|
!(event_mask & GDK_POINTER_MOTION_HINT_MASK))
|
|
_gdk_display_enable_motion_hints (display, device);
|
|
|
|
if (G_UNLIKELY (!private->device_events))
|
|
private->device_events = g_hash_table_new (NULL, NULL);
|
|
|
|
if (event_mask == 0)
|
|
{
|
|
/* FIXME: unsetting events on a master device
|
|
* would restore private->event_mask
|
|
*/
|
|
g_hash_table_remove (private->device_events, device);
|
|
}
|
|
else
|
|
g_hash_table_insert (private->device_events, device,
|
|
GINT_TO_POINTER (event_mask));
|
|
|
|
if (_gdk_native_windows)
|
|
native = window;
|
|
else
|
|
native = gdk_window_get_toplevel (window);
|
|
|
|
while (gdk_window_is_offscreen ((GdkWindowObject *)native))
|
|
{
|
|
native = gdk_offscreen_window_get_embedder (native);
|
|
|
|
if (native == NULL ||
|
|
(!_gdk_window_has_impl (native) &&
|
|
!gdk_window_is_viewable (native)))
|
|
return;
|
|
|
|
native = gdk_window_get_toplevel (native);
|
|
}
|
|
|
|
device_mask = get_native_device_event_mask (private, device);
|
|
GDK_DEVICE_GET_CLASS (device)->select_window_events (device, native, device_mask);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_device_events:
|
|
* @window: a #GdkWindow.
|
|
* @device: a #GdkDevice.
|
|
*
|
|
* Returns the event mask for @window corresponding to an specific device.
|
|
*
|
|
* Returns: device event mask for @window
|
|
*
|
|
* Since: 3.0
|
|
**/
|
|
GdkEventMask
|
|
gdk_window_get_device_events (GdkWindow *window,
|
|
GdkDevice *device)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkEventMask mask;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
|
|
g_return_val_if_fail (GDK_IS_DEVICE (device), 0);
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return 0;
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
if (!private->device_events)
|
|
return 0;
|
|
|
|
mask = GPOINTER_TO_INT (g_hash_table_lookup (private->device_events, device));
|
|
|
|
/* FIXME: device could be controlled by private->event_mask */
|
|
|
|
return mask;
|
|
}
|
|
|
|
static void
|
|
gdk_window_move_resize_toplevel (GdkWindow *window,
|
|
gboolean with_move,
|
|
gint x,
|
|
gint y,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
GdkWindowObject *private;
|
|
cairo_region_t *old_region, *new_region;
|
|
GdkWindowImplIface *impl_iface;
|
|
gboolean expose;
|
|
int old_x, old_y, old_abs_x, old_abs_y;
|
|
int dx, dy;
|
|
gboolean is_resize;
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
expose = FALSE;
|
|
old_region = NULL;
|
|
|
|
old_x = private->x;
|
|
old_y = private->y;
|
|
|
|
is_resize = (width != -1) || (height != -1);
|
|
|
|
if (gdk_window_is_viewable (window) &&
|
|
!private->input_only)
|
|
{
|
|
expose = TRUE;
|
|
old_region = cairo_region_copy (private->clip_region);
|
|
}
|
|
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
impl_iface->move_resize (window, with_move, x, y, width, height);
|
|
|
|
dx = private->x - old_x;
|
|
dy = private->y - old_y;
|
|
|
|
old_abs_x = private->abs_x;
|
|
old_abs_y = private->abs_y;
|
|
|
|
/* Avoid recomputing for pure toplevel moves, for performance reasons */
|
|
if (is_resize)
|
|
recompute_visible_regions (private, TRUE, FALSE);
|
|
|
|
if (expose)
|
|
{
|
|
new_region = cairo_region_copy (private->clip_region);
|
|
|
|
/* This is the newly exposed area (due to any resize),
|
|
* X will expose it, but lets do that without the
|
|
* roundtrip
|
|
*/
|
|
cairo_region_subtract (new_region, old_region);
|
|
gdk_window_invalidate_region_full (window, new_region, TRUE, CLEAR_BG_WINCLEARED);
|
|
|
|
cairo_region_destroy (old_region);
|
|
cairo_region_destroy (new_region);
|
|
}
|
|
|
|
_gdk_synthesize_crossing_events_for_geometry_change (window);
|
|
}
|
|
|
|
|
|
static void
|
|
move_native_children (GdkWindowObject *private)
|
|
{
|
|
GList *l;
|
|
GdkWindowObject *child;
|
|
GdkWindowImplIface *impl_iface;
|
|
|
|
for (l = private->children; l; l = l->next)
|
|
{
|
|
child = l->data;
|
|
|
|
if (child->impl != private->impl)
|
|
{
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (child->impl);
|
|
impl_iface->move_resize ((GdkWindow *)child, TRUE,
|
|
child->x, child->y,
|
|
child->width, child->height);
|
|
}
|
|
else
|
|
move_native_children (child);
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
collect_native_child_region_helper (GdkWindowObject *window,
|
|
GdkWindow *impl,
|
|
cairo_region_t **region,
|
|
int x_offset,
|
|
int y_offset)
|
|
{
|
|
GdkWindowObject *child;
|
|
cairo_region_t *tmp;
|
|
GList *l;
|
|
|
|
for (l = window->children; l != NULL; l = l->next)
|
|
{
|
|
child = l->data;
|
|
|
|
if (!GDK_WINDOW_IS_MAPPED (child) || child->input_only)
|
|
continue;
|
|
|
|
if (child->impl != impl)
|
|
{
|
|
tmp = cairo_region_copy (child->clip_region);
|
|
cairo_region_translate (tmp,
|
|
x_offset + child->x,
|
|
y_offset + child->y);
|
|
if (*region == NULL)
|
|
*region = tmp;
|
|
else
|
|
{
|
|
cairo_region_union (*region, tmp);
|
|
cairo_region_destroy (tmp);
|
|
}
|
|
}
|
|
else
|
|
collect_native_child_region_helper (child, impl, region,
|
|
x_offset + child->x,
|
|
y_offset + child->y);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static cairo_region_t *
|
|
collect_native_child_region (GdkWindowObject *window,
|
|
gboolean include_this)
|
|
{
|
|
cairo_region_t *region;
|
|
|
|
if (include_this && gdk_window_has_impl (window) && window->viewable)
|
|
return cairo_region_copy (window->clip_region);
|
|
|
|
region = NULL;
|
|
|
|
collect_native_child_region_helper (window, window->impl, ®ion, 0, 0);
|
|
|
|
return region;
|
|
}
|
|
|
|
|
|
static void
|
|
gdk_window_move_resize_internal (GdkWindow *window,
|
|
gboolean with_move,
|
|
gint x,
|
|
gint y,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
GdkWindowObject *private;
|
|
cairo_region_t *old_region, *new_region, *copy_area;
|
|
cairo_region_t *old_native_child_region, *new_native_child_region;
|
|
GdkWindowObject *impl_window;
|
|
GdkWindowImplIface *impl_iface;
|
|
gboolean expose;
|
|
int old_x, old_y, old_abs_x, old_abs_y;
|
|
int dx, dy;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
if (private->destroyed)
|
|
return;
|
|
|
|
if (gdk_window_is_toplevel (private))
|
|
{
|
|
gdk_window_move_resize_toplevel (window, with_move, x, y, width, height);
|
|
return;
|
|
}
|
|
|
|
/* Bail early if no change */
|
|
if (private->width == width &&
|
|
private->height == height &&
|
|
(!with_move ||
|
|
(private->x == x &&
|
|
private->y == y)))
|
|
return;
|
|
|
|
gdk_window_flush_if_exposing (window);
|
|
|
|
/* Handle child windows */
|
|
|
|
expose = FALSE;
|
|
old_region = NULL;
|
|
|
|
impl_window = gdk_window_get_impl_window (private);
|
|
|
|
old_x = private->x;
|
|
old_y = private->y;
|
|
|
|
old_native_child_region = NULL;
|
|
if (gdk_window_is_viewable (window) &&
|
|
!private->input_only)
|
|
{
|
|
expose = TRUE;
|
|
|
|
old_region = cairo_region_copy (private->clip_region);
|
|
/* Adjust region to parent window coords */
|
|
cairo_region_translate (old_region, private->x, private->y);
|
|
|
|
old_native_child_region = collect_native_child_region (private, TRUE);
|
|
if (old_native_child_region)
|
|
{
|
|
/* Adjust region to parent window coords */
|
|
cairo_region_translate (old_native_child_region, private->x, private->y);
|
|
|
|
/* Any native window move will immediately copy stuff to the destination, which may overwrite a
|
|
* source or destination for a delayed GdkWindowRegionMove. So, we need
|
|
* to flush those here for the parent window and all overlapped subwindows
|
|
* of it. And we need to do this before setting the new clips as those will be
|
|
* affecting this.
|
|
*/
|
|
gdk_window_flush_recursive (private->parent);
|
|
}
|
|
}
|
|
|
|
/* Set the new position and size */
|
|
if (with_move)
|
|
{
|
|
private->x = x;
|
|
private->y = y;
|
|
}
|
|
if (!(width < 0 && height < 0))
|
|
{
|
|
if (width < 1)
|
|
width = 1;
|
|
private->width = width;
|
|
if (height < 1)
|
|
height = 1;
|
|
private->height = height;
|
|
}
|
|
|
|
dx = private->x - old_x;
|
|
dy = private->y - old_y;
|
|
|
|
old_abs_x = private->abs_x;
|
|
old_abs_y = private->abs_y;
|
|
|
|
recompute_visible_regions (private, TRUE, FALSE);
|
|
|
|
new_native_child_region = NULL;
|
|
if (old_native_child_region)
|
|
{
|
|
new_native_child_region = collect_native_child_region (private, TRUE);
|
|
/* Adjust region to parent window coords */
|
|
cairo_region_translate (new_native_child_region, private->x, private->y);
|
|
}
|
|
|
|
if (gdk_window_has_impl (private))
|
|
{
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
|
|
/* Do the actual move after recomputing things, as this will have set the shape to
|
|
the now correct one, thus avoiding copying regions that should not be copied. */
|
|
impl_iface->move_resize (window, TRUE,
|
|
private->x, private->y,
|
|
private->width, private->height);
|
|
}
|
|
else if (old_abs_x != private->abs_x ||
|
|
old_abs_y != private->abs_y)
|
|
move_native_children (private);
|
|
|
|
if (expose)
|
|
{
|
|
new_region = cairo_region_copy (private->clip_region);
|
|
/* Adjust region to parent window coords */
|
|
cairo_region_translate (new_region, private->x, private->y);
|
|
|
|
/* copy_area:
|
|
* Part of the data at the new location can be copied from the
|
|
* old location, this area is the intersection of the old region
|
|
* moved as the copy will move it and then intersected with
|
|
* the new region.
|
|
*
|
|
* new_region:
|
|
* Everything in the old and new regions that is not copied must be
|
|
* invalidated (including children) as this is newly exposed
|
|
*/
|
|
copy_area = cairo_region_copy (new_region);
|
|
|
|
cairo_region_union (new_region, old_region);
|
|
|
|
if (old_native_child_region)
|
|
{
|
|
/* Don't copy from inside native children, as this is copied by
|
|
* the native window move.
|
|
*/
|
|
cairo_region_subtract (old_region, old_native_child_region);
|
|
}
|
|
cairo_region_translate (old_region, dx, dy);
|
|
|
|
cairo_region_intersect (copy_area, old_region);
|
|
|
|
if (new_native_child_region)
|
|
{
|
|
/* Don't copy any bits that would cause a read from the moved
|
|
native windows, as we can't read that data */
|
|
cairo_region_translate (new_native_child_region, dx, dy);
|
|
cairo_region_subtract (copy_area, new_native_child_region);
|
|
cairo_region_translate (new_native_child_region, -dx, -dy);
|
|
}
|
|
|
|
cairo_region_subtract (new_region, copy_area);
|
|
|
|
/* Convert old region to impl coords */
|
|
cairo_region_translate (old_region, -dx + private->abs_x - private->x, -dy + private->abs_y - private->y);
|
|
|
|
/* convert from parent coords to impl */
|
|
cairo_region_translate (copy_area, private->abs_x - private->x, private->abs_y - private->y);
|
|
|
|
move_region_on_impl (impl_window, copy_area, dx, dy); /* takes ownership of copy_area */
|
|
|
|
/* Invalidate affected part in the parent window
|
|
* (no higher window should be affected)
|
|
* We also invalidate any children in that area, which could include
|
|
* this window if it still overlaps that area.
|
|
*/
|
|
if (old_native_child_region)
|
|
{
|
|
/* No need to expose the region that the native window move copies */
|
|
cairo_region_translate (old_native_child_region, dx, dy);
|
|
cairo_region_intersect (old_native_child_region, new_native_child_region);
|
|
cairo_region_subtract (new_region, old_native_child_region);
|
|
}
|
|
gdk_window_invalidate_region_full (GDK_WINDOW (private->parent), new_region, TRUE, CLEAR_BG_ALL);
|
|
|
|
cairo_region_destroy (old_region);
|
|
cairo_region_destroy (new_region);
|
|
}
|
|
|
|
if (old_native_child_region)
|
|
{
|
|
cairo_region_destroy (old_native_child_region);
|
|
cairo_region_destroy (new_native_child_region);
|
|
}
|
|
|
|
_gdk_synthesize_crossing_events_for_geometry_change (window);
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* gdk_window_move:
|
|
* @window: a #GdkWindow
|
|
* @x: X coordinate relative to window's parent
|
|
* @y: Y coordinate relative to window's parent
|
|
*
|
|
* Repositions a window relative to its parent window.
|
|
* For toplevel windows, window managers may ignore or modify the move;
|
|
* you should probably use gtk_window_move() on a #GtkWindow widget
|
|
* anyway, instead of using GDK functions. For child windows,
|
|
* the move will reliably succeed.
|
|
*
|
|
* If you're also planning to resize the window, use gdk_window_move_resize()
|
|
* to both move and resize simultaneously, for a nicer visual effect.
|
|
**/
|
|
void
|
|
gdk_window_move (GdkWindow *window,
|
|
gint x,
|
|
gint y)
|
|
{
|
|
gdk_window_move_resize_internal (window, TRUE, x, y, -1, -1);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_resize:
|
|
* @window: a #GdkWindow
|
|
* @width: new width of the window
|
|
* @height: new height of the window
|
|
*
|
|
* Resizes @window; for toplevel windows, asks the window manager to resize
|
|
* the window. The window manager may not allow the resize. When using GTK+,
|
|
* use gtk_window_resize() instead of this low-level GDK function.
|
|
*
|
|
* Windows may not be resized below 1x1.
|
|
*
|
|
* If you're also planning to move the window, use gdk_window_move_resize()
|
|
* to both move and resize simultaneously, for a nicer visual effect.
|
|
**/
|
|
void
|
|
gdk_window_resize (GdkWindow *window,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
gdk_window_move_resize_internal (window, FALSE, 0, 0, width, height);
|
|
}
|
|
|
|
|
|
/**
|
|
* gdk_window_move_resize:
|
|
* @window: a #GdkWindow
|
|
* @x: new X position relative to window's parent
|
|
* @y: new Y position relative to window's parent
|
|
* @width: new width
|
|
* @height: new height
|
|
*
|
|
* Equivalent to calling gdk_window_move() and gdk_window_resize(),
|
|
* except that both operations are performed at once, avoiding strange
|
|
* visual effects. (i.e. the user may be able to see the window first
|
|
* move, then resize, if you don't use gdk_window_move_resize().)
|
|
**/
|
|
void
|
|
gdk_window_move_resize (GdkWindow *window,
|
|
gint x,
|
|
gint y,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
gdk_window_move_resize_internal (window, TRUE, x, y, width, height);
|
|
}
|
|
|
|
|
|
/**
|
|
* gdk_window_scroll:
|
|
* @window: a #GdkWindow
|
|
* @dx: Amount to scroll in the X direction
|
|
* @dy: Amount to scroll in the Y direction
|
|
*
|
|
* Scroll the contents of @window, both pixels and children, by the
|
|
* given amount. @window itself does not move. Portions of the window
|
|
* that the scroll operation brings in from offscreen areas are
|
|
* invalidated. The invalidated region may be bigger than what would
|
|
* strictly be necessary.
|
|
*
|
|
* For X11, a minimum area will be invalidated if the window has no
|
|
* subwindows, or if the edges of the window's parent do not extend
|
|
* beyond the edges of the window. In other cases, a multi-step process
|
|
* is used to scroll the window which may produce temporary visual
|
|
* artifacts and unnecessary invalidations.
|
|
**/
|
|
void
|
|
gdk_window_scroll (GdkWindow *window,
|
|
gint dx,
|
|
gint dy)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *) window;
|
|
GdkWindowObject *impl_window;
|
|
cairo_region_t *copy_area, *noncopy_area;
|
|
cairo_region_t *old_native_child_region, *new_native_child_region;
|
|
GList *tmp_list;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
if (dx == 0 && dy == 0)
|
|
return;
|
|
|
|
if (private->destroyed)
|
|
return;
|
|
|
|
gdk_window_flush_if_exposing (window);
|
|
|
|
old_native_child_region = collect_native_child_region (private, FALSE);
|
|
if (old_native_child_region)
|
|
{
|
|
/* Any native window move will immediately copy stuff to the destination, which may overwrite a
|
|
* source or destination for a delayed GdkWindowRegionMove. So, we need
|
|
* to flush those here for the window and all overlapped subwindows
|
|
* of it. And we need to do this before setting the new clips as those will be
|
|
* affecting this.
|
|
*/
|
|
gdk_window_flush_recursive (private);
|
|
}
|
|
|
|
|
|
/* First move all child windows, without causing invalidation */
|
|
|
|
tmp_list = private->children;
|
|
while (tmp_list)
|
|
{
|
|
GdkWindow *child = GDK_WINDOW (tmp_list->data);
|
|
GdkWindowObject *child_obj = GDK_WINDOW_OBJECT (child);
|
|
|
|
/* Just update the positions, the bits will move with the copy */
|
|
child_obj->x += dx;
|
|
child_obj->y += dy;
|
|
|
|
tmp_list = tmp_list->next;
|
|
}
|
|
|
|
recompute_visible_regions (private, FALSE, TRUE);
|
|
|
|
new_native_child_region = NULL;
|
|
if (old_native_child_region)
|
|
new_native_child_region = collect_native_child_region (private, FALSE);
|
|
|
|
move_native_children (private);
|
|
|
|
/* Then copy the actual bits of the window w/ child windows */
|
|
|
|
impl_window = gdk_window_get_impl_window (private);
|
|
|
|
/* Calculate the area that can be gotten by copying the old area */
|
|
copy_area = cairo_region_copy (private->clip_region);
|
|
if (old_native_child_region)
|
|
{
|
|
/* Don't copy from inside native children, as this is copied by
|
|
* the native window move.
|
|
*/
|
|
cairo_region_subtract (copy_area, old_native_child_region);
|
|
|
|
/* Don't copy any bits that would cause a read from the moved
|
|
native windows, as we can't read that data */
|
|
cairo_region_subtract (copy_area, new_native_child_region);
|
|
}
|
|
cairo_region_translate (copy_area, dx, dy);
|
|
cairo_region_intersect (copy_area, private->clip_region);
|
|
|
|
/* And the rest need to be invalidated */
|
|
noncopy_area = cairo_region_copy (private->clip_region);
|
|
cairo_region_subtract (noncopy_area, copy_area);
|
|
|
|
/* convert from window coords to impl */
|
|
cairo_region_translate (copy_area, private->abs_x, private->abs_y);
|
|
|
|
move_region_on_impl (impl_window, copy_area, dx, dy); /* takes ownership of copy_area */
|
|
|
|
/* Invalidate not copied regions */
|
|
if (old_native_child_region)
|
|
{
|
|
/* No need to expose the region that the native window move copies */
|
|
cairo_region_translate (old_native_child_region, dx, dy);
|
|
cairo_region_intersect (old_native_child_region, new_native_child_region);
|
|
cairo_region_subtract (noncopy_area, old_native_child_region);
|
|
}
|
|
gdk_window_invalidate_region_full (window, noncopy_area, TRUE, CLEAR_BG_ALL);
|
|
|
|
cairo_region_destroy (noncopy_area);
|
|
|
|
if (old_native_child_region)
|
|
{
|
|
cairo_region_destroy (old_native_child_region);
|
|
cairo_region_destroy (new_native_child_region);
|
|
}
|
|
|
|
_gdk_synthesize_crossing_events_for_geometry_change (window);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_move_region:
|
|
* @window: a #GdkWindow
|
|
* @region: The #cairo_region_t to move
|
|
* @dx: Amount to move in the X direction
|
|
* @dy: Amount to move in the Y direction
|
|
*
|
|
* Move the part of @window indicated by @region by @dy pixels in the Y
|
|
* direction and @dx pixels in the X direction. The portions of @region
|
|
* that not covered by the new position of @region are invalidated.
|
|
*
|
|
* Child windows are not moved.
|
|
*
|
|
* Since: 2.8
|
|
*/
|
|
void
|
|
gdk_window_move_region (GdkWindow *window,
|
|
const cairo_region_t *region,
|
|
gint dx,
|
|
gint dy)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *) window;
|
|
GdkWindowObject *impl_window;
|
|
cairo_region_t *nocopy_area;
|
|
cairo_region_t *copy_area;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
g_return_if_fail (region != NULL);
|
|
|
|
if (dx == 0 && dy == 0)
|
|
return;
|
|
|
|
if (private->destroyed)
|
|
return;
|
|
|
|
impl_window = gdk_window_get_impl_window (private);
|
|
|
|
/* compute source regions */
|
|
copy_area = cairo_region_copy (region);
|
|
cairo_region_intersect (copy_area, private->clip_region_with_children);
|
|
|
|
/* compute destination regions */
|
|
cairo_region_translate (copy_area, dx, dy);
|
|
cairo_region_intersect (copy_area, private->clip_region_with_children);
|
|
|
|
/* Invalidate parts of the region (source and dest) not covered
|
|
by the copy */
|
|
nocopy_area = cairo_region_copy (region);
|
|
cairo_region_translate (nocopy_area, dx, dy);
|
|
cairo_region_union (nocopy_area, region);
|
|
cairo_region_subtract (nocopy_area, copy_area);
|
|
|
|
/* convert from window coords to impl */
|
|
cairo_region_translate (copy_area, private->abs_x, private->abs_y);
|
|
move_region_on_impl (impl_window, copy_area, dx, dy); /* Takes ownership of copy_area */
|
|
|
|
gdk_window_invalidate_region_full (window, nocopy_area, FALSE, CLEAR_BG_ALL);
|
|
cairo_region_destroy (nocopy_area);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_set_background:
|
|
* @window: a #GdkWindow
|
|
* @color: an allocated #GdkColor
|
|
*
|
|
* Sets the background color of @window. (However, when using GTK+,
|
|
* set the background of a widget with gtk_widget_modify_bg() - if
|
|
* you're an application - or gtk_style_set_background() - if you're
|
|
* implementing a custom widget.)
|
|
*
|
|
* See also gdk_window_set_background_pixmap().
|
|
*/
|
|
void
|
|
gdk_window_set_background (GdkWindow *window,
|
|
const GdkColor *color)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkWindowImplIface *impl_iface;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
private->bg_color = *color;
|
|
|
|
if (private->bg_pixmap &&
|
|
private->bg_pixmap != GDK_PARENT_RELATIVE_BG &&
|
|
private->bg_pixmap != GDK_NO_BG)
|
|
g_object_unref (private->bg_pixmap);
|
|
|
|
private->bg_pixmap = NULL;
|
|
|
|
if (private->background)
|
|
{
|
|
cairo_pattern_destroy (private->background);
|
|
private->background = NULL;
|
|
}
|
|
|
|
if (!GDK_WINDOW_DESTROYED (window) &&
|
|
gdk_window_has_impl (private) &&
|
|
!private->input_only)
|
|
{
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
impl_iface->set_background (window, &private->bg_color);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gdk_window_set_back_pixmap:
|
|
* @window: a #GdkWindow
|
|
* @pixmap: (allow-none): a #GdkPixmap, or %NULL
|
|
* @parent_relative: whether the tiling origin is at the origin of
|
|
* @window's parent
|
|
*
|
|
* Sets the background pixmap of @window. May also be used to set a
|
|
* background of "None" on @window, by setting a background pixmap
|
|
* of %NULL.
|
|
*
|
|
* A background pixmap will be tiled, positioning the first tile at
|
|
* the origin of @window, or if @parent_relative is %TRUE, the tiling
|
|
* will be done based on the origin of the parent window (useful to
|
|
* align tiles in a parent with tiles in a child).
|
|
*
|
|
* A background pixmap of %NULL means that the window will have no
|
|
* background. A window with no background will never have its
|
|
* background filled by the windowing system, instead the window will
|
|
* contain whatever pixels were already in the corresponding area of
|
|
* the display.
|
|
*
|
|
* The windowing system will normally fill a window with its background
|
|
* when the window is obscured then exposed, and when you call
|
|
* gdk_window_clear().
|
|
*/
|
|
void
|
|
gdk_window_set_back_pixmap (GdkWindow *window,
|
|
GdkPixmap *pixmap,
|
|
gboolean parent_relative)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkWindowImplIface *impl_iface;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
g_return_if_fail (pixmap == NULL || !parent_relative);
|
|
g_return_if_fail (pixmap == NULL || gdk_drawable_get_depth (window) == gdk_drawable_get_depth (pixmap));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
if (pixmap && !gdk_drawable_get_colormap (pixmap))
|
|
{
|
|
g_warning ("gdk_window_set_back_pixmap(): pixmap must have a colormap");
|
|
return;
|
|
}
|
|
|
|
if (private->bg_pixmap &&
|
|
private->bg_pixmap != GDK_PARENT_RELATIVE_BG &&
|
|
private->bg_pixmap != GDK_NO_BG)
|
|
g_object_unref (private->bg_pixmap);
|
|
|
|
if (private->background)
|
|
{
|
|
cairo_pattern_destroy (private->background);
|
|
private->background = NULL;
|
|
}
|
|
|
|
if (parent_relative)
|
|
private->bg_pixmap = GDK_PARENT_RELATIVE_BG;
|
|
else if (pixmap)
|
|
private->bg_pixmap = g_object_ref (pixmap);
|
|
else
|
|
private->bg_pixmap = GDK_NO_BG;
|
|
|
|
if (!GDK_WINDOW_DESTROYED (window) &&
|
|
gdk_window_has_impl (private) &&
|
|
!private->input_only)
|
|
{
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
impl_iface->set_back_pixmap (window, private->bg_pixmap);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_background_pattern:
|
|
* @window: a window
|
|
*
|
|
* Gets the pattern used to clear the background on @window. If @window
|
|
* does not have its own background and reuses the parent's, %NULL is
|
|
* returned and you'll have to query it yourself.
|
|
*
|
|
* Returns: The pattern to use for the background or %NULL to use the
|
|
* parent's background.
|
|
*
|
|
* Since: 2.22
|
|
**/
|
|
cairo_pattern_t *
|
|
gdk_window_get_background_pattern (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *) window;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
|
|
|
if (private->background == NULL)
|
|
{
|
|
if (private->bg_pixmap == GDK_PARENT_RELATIVE_BG)
|
|
private->background = NULL;
|
|
else if (private->bg_pixmap != GDK_NO_BG &&
|
|
private->bg_pixmap != NULL)
|
|
{
|
|
static cairo_user_data_key_t key;
|
|
cairo_surface_t *surface;
|
|
|
|
surface = _gdk_drawable_ref_cairo_surface (private->bg_pixmap);
|
|
private->background = cairo_pattern_create_for_surface (surface);
|
|
cairo_surface_destroy (surface);
|
|
|
|
cairo_pattern_set_extend (private->background, CAIRO_EXTEND_REPEAT);
|
|
cairo_pattern_set_user_data (private->background,
|
|
&key,
|
|
g_object_ref (private->bg_pixmap),
|
|
g_object_unref);
|
|
}
|
|
else
|
|
private->background =
|
|
cairo_pattern_create_rgb (private->bg_color.red / 65535.,
|
|
private->bg_color.green / 65535.,
|
|
private->bg_color.blue / 65535.);
|
|
}
|
|
|
|
return private->background;
|
|
}
|
|
|
|
static void
|
|
update_cursor_foreach (GdkDisplay *display,
|
|
GdkDevice *device,
|
|
GdkPointerWindowInfo *pointer_info,
|
|
gpointer user_data)
|
|
{
|
|
GdkWindow *window = user_data;
|
|
GdkWindowObject *private = (GdkWindowObject *) window;
|
|
|
|
if (_gdk_native_windows ||
|
|
private->window_type == GDK_WINDOW_ROOT ||
|
|
private->window_type == GDK_WINDOW_FOREIGN)
|
|
GDK_WINDOW_IMPL_GET_IFACE (private->impl)->set_device_cursor (window, device, private->cursor);
|
|
else if (_gdk_window_event_parent_of (window, pointer_info->window_under_pointer))
|
|
update_cursor (display, device);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_cursor:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Retrieves a #GdkCursor pointer for the cursor currently set on the
|
|
* specified #GdkWindow, or %NULL. If the return value is %NULL then
|
|
* there is no custom cursor set on the specified window, and it is
|
|
* using the cursor for its parent window.
|
|
*
|
|
* Return value: a #GdkCursor, or %NULL. The returned object is owned
|
|
* by the #GdkWindow and should not be unreferenced directly. Use
|
|
* gdk_window_set_cursor() to unset the cursor of the window
|
|
*
|
|
* Since: 2.18
|
|
*/
|
|
GdkCursor *
|
|
gdk_window_get_cursor (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
return private->cursor;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_set_cursor:
|
|
* @window: a #GdkWindow
|
|
* @cursor: (allow-none): a cursor
|
|
*
|
|
* Sets the default mouse pointer for a #GdkWindow. Use gdk_cursor_new_for_display()
|
|
* or gdk_cursor_new_from_pixmap() to create the cursor. To make the cursor
|
|
* invisible, use %GDK_BLANK_CURSOR. Passing %NULL for the @cursor argument
|
|
* to gdk_window_set_cursor() means that @window will use the cursor of its
|
|
* parent window. Most windows should use this default.
|
|
*/
|
|
void
|
|
gdk_window_set_cursor (GdkWindow *window,
|
|
GdkCursor *cursor)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkDisplay *display;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
display = gdk_drawable_get_display (window);
|
|
|
|
if (private->cursor)
|
|
{
|
|
gdk_cursor_unref (private->cursor);
|
|
private->cursor = NULL;
|
|
}
|
|
|
|
if (!GDK_WINDOW_DESTROYED (window))
|
|
{
|
|
if (cursor)
|
|
private->cursor = gdk_cursor_ref (cursor);
|
|
|
|
_gdk_display_pointer_info_foreach (display,
|
|
update_cursor_foreach,
|
|
window);
|
|
|
|
g_object_notify (G_OBJECT (window), "cursor");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_device_cursor:
|
|
* @window: a #GdkWindow.
|
|
* @device: a #GdkDevice.
|
|
*
|
|
* Retrieves a #GdkCursor pointer for the @device currently set on the
|
|
* specified #GdkWindow, or %NULL. If the return value is %NULL then
|
|
* there is no custom cursor set on the specified window, and it is
|
|
* using the cursor for its parent window.
|
|
*
|
|
* Returns: a #GdkCursor, or %NULL. The returned object is owned
|
|
* by the #GdkWindow and should not be unreferenced directly. Use
|
|
* gdk_window_set_cursor() to unset the cursor of the window
|
|
*
|
|
* Since: 3.0
|
|
**/
|
|
GdkCursor *
|
|
gdk_window_get_device_cursor (GdkWindow *window,
|
|
GdkDevice *device)
|
|
{
|
|
GdkWindowObject *private;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
|
g_return_val_if_fail (GDK_IS_DEVICE (device), NULL);
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
return g_hash_table_lookup (private->device_cursor, device);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_set_device_cursor:
|
|
* @window: a #Gdkwindow
|
|
* @device: a #GdkDevice
|
|
* @cursor: a #GdkCursor
|
|
*
|
|
* Sets a specific #GdkCursor for a given device when it gets inside @window.
|
|
* Use gdk_cursor_new_for_display() or gdk_cursor_new_from_pixmap() to create
|
|
* the cursor. To make the cursor invisible, use %GDK_BLANK_CURSOR. Passing
|
|
* %NULL for the @cursor argument to gdk_window_set_cursor() means that
|
|
* @window will use the cursor of its parent window. Most windows should
|
|
* use this default.
|
|
*
|
|
* Since: 3.0
|
|
**/
|
|
void
|
|
gdk_window_set_device_cursor (GdkWindow *window,
|
|
GdkDevice *device,
|
|
GdkCursor *cursor)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkDisplay *display;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
g_return_if_fail (GDK_IS_DEVICE (device));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
display = gdk_drawable_get_display (window);
|
|
|
|
if (!cursor)
|
|
g_hash_table_remove (private->device_cursor, device);
|
|
else
|
|
g_hash_table_replace (private->device_cursor, device, gdk_cursor_ref (cursor));
|
|
|
|
if (!GDK_WINDOW_DESTROYED (window))
|
|
{
|
|
GdkPointerWindowInfo *pointer_info;
|
|
|
|
pointer_info = _gdk_display_get_pointer_info (display, device);
|
|
|
|
if (_gdk_window_event_parent_of (window, pointer_info->window_under_pointer))
|
|
update_cursor (display, device);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_geometry:
|
|
* @window: a #GdkWindow
|
|
* @x: return location for X coordinate of window (relative to its parent)
|
|
* @y: return location for Y coordinate of window (relative to its parent)
|
|
* @width: return location for width of window
|
|
* @height: return location for height of window
|
|
* @depth: return location for bit depth of window
|
|
*
|
|
* Any of the return location arguments to this function may be %NULL,
|
|
* if you aren't interested in getting the value of that field.
|
|
*
|
|
* The X and Y coordinates returned are relative to the parent window
|
|
* of @window, which for toplevels usually means relative to the
|
|
* window decorations (titlebar, etc.) rather than relative to the
|
|
* root window (screen-size background window).
|
|
*
|
|
* On the X11 platform, the geometry is obtained from the X server,
|
|
* so reflects the latest position of @window; this may be out-of-sync
|
|
* with the position of @window delivered in the most-recently-processed
|
|
* #GdkEventConfigure. gdk_window_get_position() in contrast gets the
|
|
* position from the most recent configure event.
|
|
*
|
|
* <note>
|
|
* If @window is not a toplevel, it is <emphasis>much</emphasis> better
|
|
* to call gdk_window_get_position() and gdk_drawable_get_size() instead,
|
|
* because it avoids the roundtrip to the X server and because
|
|
* gdk_drawable_get_size() supports the full 32-bit coordinate space,
|
|
* whereas gdk_window_get_geometry() is restricted to the 16-bit
|
|
* coordinates of X11.
|
|
*</note>
|
|
**/
|
|
void
|
|
gdk_window_get_geometry (GdkWindow *window,
|
|
gint *x,
|
|
gint *y,
|
|
gint *width,
|
|
gint *height,
|
|
gint *depth)
|
|
{
|
|
GdkWindowObject *private, *parent;
|
|
GdkWindowImplIface *impl_iface;
|
|
|
|
if (!window)
|
|
{
|
|
GDK_NOTE (MULTIHEAD,
|
|
g_message ("gdk_window_get_geometry(): Window needs "
|
|
"to be non-NULL to be multi head safe"));
|
|
window = gdk_screen_get_root_window ((gdk_screen_get_default ()));
|
|
}
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
if (!GDK_WINDOW_DESTROYED (window))
|
|
{
|
|
if (gdk_window_has_impl (private))
|
|
{
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
impl_iface->get_geometry (window, x, y,
|
|
width, height,
|
|
depth);
|
|
/* This reports the position wrt to the native parent, we need to convert
|
|
it to be relative to the client side parent */
|
|
parent = private->parent;
|
|
if (parent && !gdk_window_has_impl (parent))
|
|
{
|
|
if (x)
|
|
*x -= parent->abs_x;
|
|
if (y)
|
|
*y -= parent->abs_y;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (x)
|
|
*x = private->x;
|
|
if (y)
|
|
*y = private->y;
|
|
if (width)
|
|
*width = private->width;
|
|
if (height)
|
|
*height = private->height;
|
|
if (depth)
|
|
*depth = private->depth;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_origin:
|
|
* @window: a #GdkWindow
|
|
* @x: return location for X coordinate
|
|
* @y: return location for Y coordinate
|
|
*
|
|
* Obtains the position of a window in root window coordinates.
|
|
* (Compare with gdk_window_get_position() and
|
|
* gdk_window_get_geometry() which return the position of a window
|
|
* relative to its parent window.)
|
|
*
|
|
* Return value: not meaningful, ignore
|
|
*/
|
|
gint
|
|
gdk_window_get_origin (GdkWindow *window,
|
|
gint *x,
|
|
gint *y)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkWindowImplIface *impl_iface;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
{
|
|
if (x)
|
|
*x = 0;
|
|
if (y)
|
|
*y = 0;
|
|
return 0;
|
|
}
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
impl_iface->get_root_coords (window,
|
|
private->abs_x,
|
|
private->abs_y,
|
|
x, y);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_root_coords:
|
|
* @window: a #GdkWindow
|
|
* @x: X coordinate in window
|
|
* @y: Y coordinate in window
|
|
* @root_x: return location for X coordinate
|
|
* @root_y: return location for Y coordinate
|
|
*
|
|
* Obtains the position of a window position in root
|
|
* window coordinates. This is similar to
|
|
* gdk_window_get_origin() but allows you go pass
|
|
* in any position in the window, not just the origin.
|
|
*
|
|
* Since: 2.18
|
|
*/
|
|
void
|
|
gdk_window_get_root_coords (GdkWindow *window,
|
|
gint x,
|
|
gint y,
|
|
gint *root_x,
|
|
gint *root_y)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkWindowImplIface *impl_iface;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
{
|
|
if (x)
|
|
*root_x = x;
|
|
if (y)
|
|
*root_y = y;
|
|
return;
|
|
}
|
|
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
impl_iface->get_root_coords (window,
|
|
x + private->abs_x,
|
|
y + private->abs_y,
|
|
root_x, root_y);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_coords_to_parent:
|
|
* @window: a child window
|
|
* @x: X coordinate in child's coordinate system
|
|
* @y: Y coordinate in child's coordinate system
|
|
* @parent_x: (out) (allow-none): return location for X coordinate
|
|
* in parent's coordinate system, or %NULL
|
|
* @parent_y: (out) (allow-none): return location for Y coordinate
|
|
* in parent's coordinate system, or %NULL
|
|
*
|
|
* Transforms window coordinates from a child window to its parent
|
|
* window, where the parent window is the normal parent as returned by
|
|
* gdk_window_get_parent() for normal windows, and the window's
|
|
* embedder as returned by gdk_offscreen_window_get_embedder() for
|
|
* offscreen windows.
|
|
*
|
|
* For normal windows, calling this function is equivalent to adding
|
|
* the return values of gdk_window_get_position() to the child coordinates.
|
|
* For offscreen windows however (which can be arbitrarily transformed),
|
|
* this function calls the GdkWindow::to-embedder: signal to translate
|
|
* the coordinates.
|
|
*
|
|
* You should always use this function when writing generic code that
|
|
* walks up a window hierarchy.
|
|
*
|
|
* See also: gdk_window_coords_from_parent()
|
|
*
|
|
* Since: 2.22
|
|
**/
|
|
void
|
|
gdk_window_coords_to_parent (GdkWindow *window,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble *parent_x,
|
|
gdouble *parent_y)
|
|
{
|
|
GdkWindowObject *obj;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
obj = (GdkWindowObject *) window;
|
|
|
|
if (gdk_window_is_offscreen (obj))
|
|
{
|
|
gdouble px, py;
|
|
|
|
to_embedder (obj, x, y, &px, &py);
|
|
|
|
if (parent_x)
|
|
*parent_x = px;
|
|
|
|
if (parent_y)
|
|
*parent_y = py;
|
|
}
|
|
else
|
|
{
|
|
if (parent_x)
|
|
*parent_x = x + obj->x;
|
|
|
|
if (parent_y)
|
|
*parent_y = y + obj->y;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gdk_window_coords_from_parent:
|
|
* @window: a child window
|
|
* @parent_x: X coordinate in parent's coordinate system
|
|
* @parent_y: Y coordinate in parent's coordinate system
|
|
* @x: (out) (allow-none): return location for X coordinate in child's coordinate system
|
|
* @y: (out) (allow-none): return location for Y coordinate in child's coordinate system
|
|
*
|
|
* Transforms window coordinates from a parent window to a child
|
|
* window, where the parent window is the normal parent as returned by
|
|
* gdk_window_get_parent() for normal windows, and the window's
|
|
* embedder as returned by gdk_offscreen_window_get_embedder() for
|
|
* offscreen windows.
|
|
*
|
|
* For normal windows, calling this function is equivalent to subtracting
|
|
* the return values of gdk_window_get_position() from the parent coordinates.
|
|
* For offscreen windows however (which can be arbitrarily transformed),
|
|
* this function calls the GdkWindow::from-embedder: signal to translate
|
|
* the coordinates.
|
|
*
|
|
* You should always use this function when writing generic code that
|
|
* walks down a window hierarchy.
|
|
*
|
|
* See also: gdk_window_coords_to_parent()
|
|
*
|
|
* Since: 2.22
|
|
**/
|
|
void
|
|
gdk_window_coords_from_parent (GdkWindow *window,
|
|
gdouble parent_x,
|
|
gdouble parent_y,
|
|
gdouble *x,
|
|
gdouble *y)
|
|
{
|
|
GdkWindowObject *obj;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
obj = (GdkWindowObject *) window;
|
|
|
|
if (gdk_window_is_offscreen (obj))
|
|
{
|
|
gdouble cx, cy;
|
|
|
|
from_embedder (obj, parent_x, parent_y, &cx, &cy);
|
|
|
|
if (x)
|
|
*x = cx;
|
|
|
|
if (y)
|
|
*y = cy;
|
|
}
|
|
else
|
|
{
|
|
if (x)
|
|
*x = parent_x - obj->x;
|
|
|
|
if (y)
|
|
*y = parent_y - obj->y;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gdk_window_shape_combine_mask:
|
|
* @window: a #GdkWindow
|
|
* @mask: shape mask
|
|
* @x: X position of shape mask with respect to @window
|
|
* @y: Y position of shape mask with respect to @window
|
|
*
|
|
* Applies a shape mask to @window. Pixels in @window corresponding to
|
|
* set bits in the @mask will be visible; pixels in @window
|
|
* corresponding to unset bits in the @mask will be transparent. This
|
|
* gives a non-rectangular window.
|
|
*
|
|
* If @mask is %NULL, the shape mask will be unset, and the @x/@y
|
|
* parameters are not used.
|
|
*
|
|
* On the X11 platform, this uses an X server extension which is
|
|
* widely available on most common platforms, but not available on
|
|
* very old X servers, and occasionally the implementation will be
|
|
* buggy. On servers without the shape extension, this function
|
|
* will do nothing.
|
|
*
|
|
* This function works on both toplevel and child windows.
|
|
*/
|
|
void
|
|
gdk_window_shape_combine_mask (GdkWindow *window,
|
|
GdkBitmap *mask,
|
|
gint x,
|
|
gint y)
|
|
{
|
|
GdkWindowObject *private;
|
|
cairo_region_t *region;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
if (mask)
|
|
region = _gdk_windowing_get_shape_for_mask (mask);
|
|
else
|
|
region = NULL;
|
|
|
|
gdk_window_shape_combine_region (window,
|
|
region,
|
|
x, y);
|
|
|
|
if (region)
|
|
cairo_region_destroy (region);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_shape_combine_region:
|
|
* @window: a #GdkWindow
|
|
* @shape_region: region of window to be non-transparent
|
|
* @offset_x: X position of @shape_region in @window coordinates
|
|
* @offset_y: Y position of @shape_region in @window coordinates
|
|
*
|
|
* Makes pixels in @window outside @shape_region be transparent,
|
|
* so that the window may be nonrectangular. See also
|
|
* gdk_window_shape_combine_mask() to use a bitmap as the mask.
|
|
*
|
|
* If @shape_region is %NULL, the shape will be unset, so the whole
|
|
* window will be opaque again. @offset_x and @offset_y are ignored
|
|
* if @shape_region is %NULL.
|
|
*
|
|
* On the X11 platform, this uses an X server extension which is
|
|
* widely available on most common platforms, but not available on
|
|
* very old X servers, and occasionally the implementation will be
|
|
* buggy. On servers without the shape extension, this function
|
|
* will do nothing.
|
|
*
|
|
* This function works on both toplevel and child windows.
|
|
*/
|
|
void
|
|
gdk_window_shape_combine_region (GdkWindow *window,
|
|
const cairo_region_t *shape_region,
|
|
gint offset_x,
|
|
gint offset_y)
|
|
{
|
|
GdkWindowObject *private;
|
|
cairo_region_t *old_region, *new_region, *diff;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return;
|
|
|
|
private->shaped = (shape_region != NULL);
|
|
|
|
if (private->shape)
|
|
cairo_region_destroy (private->shape);
|
|
|
|
old_region = NULL;
|
|
if (GDK_WINDOW_IS_MAPPED (window))
|
|
old_region = cairo_region_copy (private->clip_region);
|
|
|
|
if (shape_region)
|
|
{
|
|
private->shape = cairo_region_copy (shape_region);
|
|
cairo_region_translate (private->shape, offset_x, offset_y);
|
|
}
|
|
else
|
|
private->shape = NULL;
|
|
|
|
recompute_visible_regions (private, TRUE, FALSE);
|
|
|
|
if (gdk_window_has_impl (private) &&
|
|
!should_apply_clip_as_shape (private))
|
|
apply_shape (private, private->shape);
|
|
|
|
if (old_region)
|
|
{
|
|
new_region = cairo_region_copy (private->clip_region);
|
|
|
|
/* New area in the window, needs invalidation */
|
|
diff = cairo_region_copy (new_region);
|
|
cairo_region_subtract (diff, old_region);
|
|
|
|
gdk_window_invalidate_region_full (window, diff, TRUE, CLEAR_BG_ALL);
|
|
|
|
cairo_region_destroy (diff);
|
|
|
|
if (!gdk_window_is_toplevel (private))
|
|
{
|
|
/* New area in the non-root parent window, needs invalidation */
|
|
diff = cairo_region_copy (old_region);
|
|
cairo_region_subtract (diff, new_region);
|
|
|
|
/* Adjust region to parent window coords */
|
|
cairo_region_translate (diff, private->x, private->y);
|
|
|
|
gdk_window_invalidate_region_full (GDK_WINDOW (private->parent), diff, TRUE, CLEAR_BG_ALL);
|
|
|
|
cairo_region_destroy (diff);
|
|
}
|
|
|
|
cairo_region_destroy (new_region);
|
|
cairo_region_destroy (old_region);
|
|
}
|
|
}
|
|
|
|
static void
|
|
do_child_shapes (GdkWindow *window,
|
|
gboolean merge)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkRectangle r;
|
|
cairo_region_t *region;
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
r.x = 0;
|
|
r.y = 0;
|
|
r.width = private->width;
|
|
r.height = private->height;
|
|
|
|
region = cairo_region_create_rectangle (&r);
|
|
remove_child_area (private, NULL, FALSE, region);
|
|
|
|
if (merge && private->shape)
|
|
cairo_region_subtract (region, private->shape);
|
|
|
|
gdk_window_shape_combine_region (window, region, 0, 0);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_set_child_shapes:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Sets the shape mask of @window to the union of shape masks
|
|
* for all children of @window, ignoring the shape mask of @window
|
|
* itself. Contrast with gdk_window_merge_child_shapes() which includes
|
|
* the shape mask of @window in the masks to be merged.
|
|
**/
|
|
void
|
|
gdk_window_set_child_shapes (GdkWindow *window)
|
|
{
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
do_child_shapes (window, FALSE);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_merge_child_shapes:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Merges the shape masks for any child windows into the
|
|
* shape mask for @window. i.e. the union of all masks
|
|
* for @window and its children will become the new mask
|
|
* for @window. See gdk_window_shape_combine_mask().
|
|
*
|
|
* This function is distinct from gdk_window_set_child_shapes()
|
|
* because it includes @window's shape mask in the set of shapes to
|
|
* be merged.
|
|
*/
|
|
void
|
|
gdk_window_merge_child_shapes (GdkWindow *window)
|
|
{
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
do_child_shapes (window, TRUE);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_input_shape_combine_mask:
|
|
* @window: a #GdkWindow
|
|
* @mask: (allow-none): shape mask, or %NULL
|
|
* @x: X position of shape mask with respect to @window
|
|
* @y: Y position of shape mask with respect to @window
|
|
*
|
|
* Like gdk_window_shape_combine_mask(), but the shape applies
|
|
* only to event handling. Mouse events which happen while
|
|
* the pointer position corresponds to an unset bit in the
|
|
* mask will be passed on the window below @window.
|
|
*
|
|
* An input shape is typically used with RGBA windows.
|
|
* The alpha channel of the window defines which pixels are
|
|
* invisible and allows for nicely antialiased borders,
|
|
* and the input shape controls where the window is
|
|
* "clickable".
|
|
*
|
|
* On the X11 platform, this requires version 1.1 of the
|
|
* shape extension.
|
|
*
|
|
* On the Win32 platform, this functionality is not present and the
|
|
* function does nothing.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
void
|
|
gdk_window_input_shape_combine_mask (GdkWindow *window,
|
|
GdkBitmap *mask,
|
|
gint x,
|
|
gint y)
|
|
{
|
|
GdkWindowObject *private;
|
|
cairo_region_t *region;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
if (mask)
|
|
region = _gdk_windowing_get_shape_for_mask (mask);
|
|
else
|
|
region = NULL;
|
|
|
|
gdk_window_input_shape_combine_region (window,
|
|
region,
|
|
x, y);
|
|
|
|
if (region != NULL)
|
|
cairo_region_destroy (region);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_input_shape_combine_region:
|
|
* @window: a #GdkWindow
|
|
* @shape_region: region of window to be non-transparent
|
|
* @offset_x: X position of @shape_region in @window coordinates
|
|
* @offset_y: Y position of @shape_region in @window coordinates
|
|
*
|
|
* Like gdk_window_shape_combine_region(), but the shape applies
|
|
* only to event handling. Mouse events which happen while
|
|
* the pointer position corresponds to an unset bit in the
|
|
* mask will be passed on the window below @window.
|
|
*
|
|
* An input shape is typically used with RGBA windows.
|
|
* The alpha channel of the window defines which pixels are
|
|
* invisible and allows for nicely antialiased borders,
|
|
* and the input shape controls where the window is
|
|
* "clickable".
|
|
*
|
|
* On the X11 platform, this requires version 1.1 of the
|
|
* shape extension.
|
|
*
|
|
* On the Win32 platform, this functionality is not present and the
|
|
* function does nothing.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
void
|
|
gdk_window_input_shape_combine_region (GdkWindow *window,
|
|
const cairo_region_t *shape_region,
|
|
gint offset_x,
|
|
gint offset_y)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkWindowImplIface *impl_iface;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return;
|
|
|
|
if (private->input_shape)
|
|
cairo_region_destroy (private->input_shape);
|
|
|
|
if (shape_region)
|
|
{
|
|
private->input_shape = cairo_region_copy (shape_region);
|
|
cairo_region_translate (private->input_shape, offset_x, offset_y);
|
|
}
|
|
else
|
|
private->input_shape = NULL;
|
|
|
|
if (gdk_window_has_impl (private))
|
|
{
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
impl_iface->input_shape_combine_region (window, private->input_shape, 0, 0);
|
|
}
|
|
|
|
/* Pointer may have e.g. moved outside window due to the input mask change */
|
|
_gdk_synthesize_crossing_events_for_geometry_change (window);
|
|
}
|
|
|
|
static void
|
|
do_child_input_shapes (GdkWindow *window,
|
|
gboolean merge)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkRectangle r;
|
|
cairo_region_t *region;
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
r.x = 0;
|
|
r.y = 0;
|
|
r.width = private->width;
|
|
r.height = private->height;
|
|
|
|
region = cairo_region_create_rectangle (&r);
|
|
remove_child_area (private, NULL, TRUE, region);
|
|
|
|
if (merge && private->shape)
|
|
cairo_region_subtract (region, private->shape);
|
|
if (merge && private->input_shape)
|
|
cairo_region_subtract (region, private->input_shape);
|
|
|
|
gdk_window_input_shape_combine_region (window, region, 0, 0);
|
|
}
|
|
|
|
|
|
/**
|
|
* gdk_window_set_child_input_shapes:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Sets the input shape mask of @window to the union of input shape masks
|
|
* for all children of @window, ignoring the input shape mask of @window
|
|
* itself. Contrast with gdk_window_merge_child_input_shapes() which includes
|
|
* the input shape mask of @window in the masks to be merged.
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
void
|
|
gdk_window_set_child_input_shapes (GdkWindow *window)
|
|
{
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
do_child_input_shapes (window, FALSE);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_merge_child_input_shapes:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Merges the input shape masks for any child windows into the
|
|
* input shape mask for @window. i.e. the union of all input masks
|
|
* for @window and its children will become the new input mask
|
|
* for @window. See gdk_window_input_shape_combine_mask().
|
|
*
|
|
* This function is distinct from gdk_window_set_child_input_shapes()
|
|
* because it includes @window's input shape mask in the set of
|
|
* shapes to be merged.
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
void
|
|
gdk_window_merge_child_input_shapes (GdkWindow *window)
|
|
{
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
do_child_input_shapes (window, TRUE);
|
|
}
|
|
|
|
|
|
/**
|
|
* gdk_window_set_static_gravities:
|
|
* @window: a #GdkWindow
|
|
* @use_static: %TRUE to turn on static gravity
|
|
*
|
|
* Set the bit gravity of the given window to static, and flag it so
|
|
* all children get static subwindow gravity. This is used if you are
|
|
* implementing scary features that involve deep knowledge of the
|
|
* windowing system. Don't worry about it unless you have to.
|
|
*
|
|
* Return value: %TRUE if the server supports static gravity
|
|
*/
|
|
gboolean
|
|
gdk_window_set_static_gravities (GdkWindow *window,
|
|
gboolean use_static)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkWindowImplIface *impl_iface;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
if (gdk_window_has_impl (private))
|
|
{
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (private->impl);
|
|
return impl_iface->set_static_gravities (window, use_static);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_composited:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Determines whether @window is composited.
|
|
*
|
|
* See gdk_window_set_composited().
|
|
*
|
|
* Returns: %TRUE if the window is composited.
|
|
*
|
|
* Since: 2.22
|
|
**/
|
|
gboolean
|
|
gdk_window_get_composited (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
|
|
|
private = (GdkWindowObject *)window;
|
|
|
|
return private->composited;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_set_composited:
|
|
* @window: a #GdkWindow
|
|
* @composited: %TRUE to set the window as composited
|
|
*
|
|
* Sets a #GdkWindow as composited, or unsets it. Composited
|
|
* windows do not automatically have their contents drawn to
|
|
* the screen. Drawing is redirected to an offscreen buffer
|
|
* and an expose event is emitted on the parent of the composited
|
|
* window. It is the responsibility of the parent's expose handler
|
|
* to manually merge the off-screen content onto the screen in
|
|
* whatever way it sees fit. See <xref linkend="composited-window-example"/>
|
|
* for an example.
|
|
*
|
|
* It only makes sense for child windows to be composited; see
|
|
* gdk_window_set_opacity() if you need translucent toplevel
|
|
* windows.
|
|
*
|
|
* An additional effect of this call is that the area of this
|
|
* window is no longer clipped from regions marked for
|
|
* invalidation on its parent. Draws done on the parent
|
|
* window are also no longer clipped by the child.
|
|
*
|
|
* This call is only supported on some systems (currently,
|
|
* only X11 with new enough Xcomposite and Xdamage extensions).
|
|
* You must call gdk_display_supports_composite() to check if
|
|
* setting a window as composited is supported before
|
|
* attempting to do so.
|
|
*
|
|
* Since: 2.12
|
|
*/
|
|
void
|
|
gdk_window_set_composited (GdkWindow *window,
|
|
gboolean composited)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
GdkDisplay *display;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
composited = composited != FALSE;
|
|
|
|
if (private->composited == composited)
|
|
return;
|
|
|
|
if (composited)
|
|
gdk_window_ensure_native (window);
|
|
|
|
display = gdk_drawable_get_display (GDK_DRAWABLE (window));
|
|
|
|
if (!gdk_display_supports_composite (display) && composited)
|
|
{
|
|
g_warning ("gdk_window_set_composited called but "
|
|
"compositing is not supported");
|
|
return;
|
|
}
|
|
|
|
_gdk_windowing_window_set_composited (window, composited);
|
|
|
|
recompute_visible_regions (private, TRUE, FALSE);
|
|
|
|
if (GDK_WINDOW_IS_MAPPED (window))
|
|
gdk_window_invalidate_in_parent (private);
|
|
|
|
private->composited = composited;
|
|
}
|
|
|
|
|
|
static void
|
|
remove_redirect_from_children (GdkWindowObject *private,
|
|
GdkWindowRedirect *redirect)
|
|
{
|
|
GList *l;
|
|
GdkWindowObject *child;
|
|
|
|
for (l = private->children; l != NULL; l = l->next)
|
|
{
|
|
child = l->data;
|
|
|
|
/* Don't redirect this child if it already has another redirect */
|
|
if (child->redirect == redirect)
|
|
{
|
|
child->redirect = NULL;
|
|
remove_redirect_from_children (child, redirect);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gdk_window_remove_redirection:
|
|
* @window: a #GdkWindow
|
|
*
|
|
* Removes any active redirection started by
|
|
* gdk_window_redirect_to_drawable().
|
|
*
|
|
* Since: 2.14
|
|
**/
|
|
void
|
|
gdk_window_remove_redirection (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
if (private->redirect &&
|
|
private->redirect->redirected == private)
|
|
{
|
|
remove_redirect_from_children (private, private->redirect);
|
|
gdk_window_redirect_free (private->redirect);
|
|
private->redirect = NULL;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_modal_hint:
|
|
* @window: A toplevel #GdkWindow.
|
|
*
|
|
* Determines whether or not the window manager is hinted that @window
|
|
* has modal behaviour.
|
|
*
|
|
* Return value: whether or not the window has the modal hint set.
|
|
*
|
|
* Since: 2.22
|
|
*/
|
|
gboolean
|
|
gdk_window_get_modal_hint (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
|
|
|
private = (GdkWindowObject*) window;
|
|
|
|
return private->modal_hint;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_accept_focus:
|
|
* @window: a toplevel #GdkWindow.
|
|
*
|
|
* Determines whether or not the desktop environment shuld be hinted that
|
|
* the window does not want to receive input focus.
|
|
*
|
|
* Return value: whether or not the window should receive input focus.
|
|
*
|
|
* Since: 2.22
|
|
*/
|
|
gboolean
|
|
gdk_window_get_accept_focus (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
|
|
|
private = (GdkWindowObject *)window;
|
|
|
|
return private->accept_focus;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_focus_on_map:
|
|
* @window: a toplevel #GdkWindow.
|
|
*
|
|
* Determines whether or not the desktop environment should be hinted that the
|
|
* window does not want to receive input focus when it is mapped.
|
|
*
|
|
* Return value: whether or not the window wants to receive input focus when
|
|
* it is mapped.
|
|
*
|
|
* Since: 2.22
|
|
*/
|
|
gboolean
|
|
gdk_window_get_focus_on_map (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
|
|
|
private = (GdkWindowObject *)window;
|
|
|
|
return private->focus_on_map;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_is_input_only:
|
|
* @window: a toplevel #GdkWindow
|
|
*
|
|
* Determines whether or not the window is an input only window.
|
|
*
|
|
* Return value: %TRUE if @window is input only
|
|
*
|
|
* Since: 2.22
|
|
*/
|
|
gboolean
|
|
gdk_window_is_input_only (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
|
|
|
private = (GdkWindowObject *)window;
|
|
|
|
return private->input_only;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_is_shaped:
|
|
* @window: a toplevel #GdkWindow
|
|
*
|
|
* Determines whether or not the window is shaped.
|
|
*
|
|
* Return value: %TRUE if @window is shaped
|
|
*
|
|
* Since: 2.22
|
|
*/
|
|
gboolean
|
|
gdk_window_is_shaped (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
|
|
|
private = (GdkWindowObject *)window;
|
|
|
|
return private->shaped;
|
|
}
|
|
|
|
static void
|
|
apply_redirect_to_children (GdkWindowObject *private,
|
|
GdkWindowRedirect *redirect)
|
|
{
|
|
GList *l;
|
|
GdkWindowObject *child;
|
|
|
|
for (l = private->children; l != NULL; l = l->next)
|
|
{
|
|
child = l->data;
|
|
|
|
/* Don't redirect this child if it already has another redirect */
|
|
if (!child->redirect)
|
|
{
|
|
child->redirect = redirect;
|
|
apply_redirect_to_children (child, redirect);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gdk_window_redirect_to_drawable:
|
|
* @window: a #GdkWindow
|
|
* @drawable: a #GdkDrawable
|
|
* @src_x: x position in @window
|
|
* @src_y: y position in @window
|
|
* @dest_x: x position in @drawable
|
|
* @dest_y: y position in @drawable
|
|
* @width: width of redirection, or -1 to use the width of @window
|
|
* @height: height of redirection or -1 to use the height of @window
|
|
*
|
|
* Redirects drawing into @window so that drawing to the
|
|
* window in the rectangle specified by @src_x, @src_y,
|
|
* @width and @height is also drawn into @drawable at
|
|
* @dest_x, @dest_y.
|
|
*
|
|
* Only drawing between gdk_window_begin_paint_region() or
|
|
* gdk_window_begin_paint_rect() and gdk_window_end_paint() is
|
|
* redirected.
|
|
*
|
|
* Redirection is active until gdk_window_remove_redirection()
|
|
* is called.
|
|
*
|
|
* Since: 2.14
|
|
**/
|
|
void
|
|
gdk_window_redirect_to_drawable (GdkWindow *window,
|
|
GdkDrawable *drawable,
|
|
gint src_x,
|
|
gint src_y,
|
|
gint dest_x,
|
|
gint dest_y,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
GdkWindowObject *private;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
|
|
g_return_if_fail (GDK_WINDOW_TYPE (window) != GDK_WINDOW_ROOT);
|
|
|
|
private = (GdkWindowObject *) window;
|
|
|
|
if (private->redirect)
|
|
gdk_window_remove_redirection (window);
|
|
|
|
if (width == -1 || height == -1)
|
|
{
|
|
gint w, h;
|
|
gdk_drawable_get_size (GDK_DRAWABLE (window), &w, &h);
|
|
if (width == -1)
|
|
width = w;
|
|
if (height == -1)
|
|
height = h;
|
|
}
|
|
|
|
private->redirect = g_new0 (GdkWindowRedirect, 1);
|
|
private->redirect->redirected = private;
|
|
private->redirect->pixmap = g_object_ref (drawable);
|
|
private->redirect->src_x = src_x;
|
|
private->redirect->src_y = src_y;
|
|
private->redirect->dest_x = dest_x;
|
|
private->redirect->dest_y = dest_y;
|
|
private->redirect->width = width;
|
|
private->redirect->height = height;
|
|
|
|
apply_redirect_to_children (private, private->redirect);
|
|
}
|
|
|
|
static void
|
|
window_get_size_rectangle (GdkWindow *window,
|
|
GdkRectangle *rect)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *) window;
|
|
|
|
rect->x = rect->y = 0;
|
|
rect->width = private->width;
|
|
rect->height = private->height;
|
|
}
|
|
|
|
/* Calculates the real clipping region for a window, in window coordinates,
|
|
* taking into account other windows, gc clip region and gc clip mask.
|
|
*/
|
|
cairo_region_t *
|
|
_gdk_window_calculate_full_clip_region (GdkWindow *window,
|
|
GdkWindow *base_window,
|
|
gboolean do_children,
|
|
gint *base_x_offset,
|
|
gint *base_y_offset)
|
|
{
|
|
GdkWindowObject *private = GDK_WINDOW_OBJECT (window);
|
|
GdkRectangle visible_rect;
|
|
cairo_region_t *real_clip_region;
|
|
gint x_offset, y_offset;
|
|
GdkWindowObject *parentwin, *lastwin;
|
|
|
|
if (base_x_offset)
|
|
*base_x_offset = 0;
|
|
if (base_y_offset)
|
|
*base_y_offset = 0;
|
|
|
|
if (!private->viewable || private->input_only)
|
|
return cairo_region_create ();
|
|
|
|
window_get_size_rectangle (window, &visible_rect);
|
|
|
|
/* real_clip_region is in window coordinates */
|
|
real_clip_region = cairo_region_create_rectangle (&visible_rect);
|
|
|
|
x_offset = y_offset = 0;
|
|
|
|
lastwin = private;
|
|
if (do_children)
|
|
parentwin = lastwin;
|
|
else
|
|
parentwin = lastwin->parent;
|
|
|
|
/* Remove the areas of all overlapping windows above parentwin in the hiearachy */
|
|
for (; parentwin != NULL &&
|
|
(parentwin == private || lastwin != (GdkWindowObject*) base_window);
|
|
lastwin = parentwin, parentwin = lastwin->parent)
|
|
{
|
|
GList *cur;
|
|
GdkRectangle real_clip_rect;
|
|
|
|
if (parentwin != private)
|
|
{
|
|
x_offset += GDK_WINDOW_OBJECT (lastwin)->x;
|
|
y_offset += GDK_WINDOW_OBJECT (lastwin)->y;
|
|
}
|
|
|
|
/* children is ordered in reverse stack order */
|
|
for (cur = parentwin->children;
|
|
cur && cur->data != lastwin;
|
|
cur = cur->next)
|
|
{
|
|
GdkWindow *child = cur->data;
|
|
GdkWindowObject *child_private = (GdkWindowObject *)child;
|
|
|
|
if (!GDK_WINDOW_IS_MAPPED (child) || child_private->input_only)
|
|
continue;
|
|
|
|
/* Ignore offscreen children, as they don't draw in their parent and
|
|
* don't take part in the clipping */
|
|
if (gdk_window_is_offscreen (child_private))
|
|
continue;
|
|
|
|
window_get_size_rectangle (child, &visible_rect);
|
|
|
|
/* Convert rect to "window" coords */
|
|
visible_rect.x += child_private->x - x_offset;
|
|
visible_rect.y += child_private->y - y_offset;
|
|
|
|
/* This shortcut is really necessary for performance when there are a lot of windows */
|
|
cairo_region_get_extents (real_clip_region, &real_clip_rect);
|
|
if (visible_rect.x >= real_clip_rect.x + real_clip_rect.width ||
|
|
visible_rect.x + visible_rect.width <= real_clip_rect.x ||
|
|
visible_rect.y >= real_clip_rect.y + real_clip_rect.height ||
|
|
visible_rect.y + visible_rect.height <= real_clip_rect.y)
|
|
continue;
|
|
|
|
cairo_region_subtract_rectangle (real_clip_region, &visible_rect);
|
|
}
|
|
|
|
/* Clip to the parent */
|
|
window_get_size_rectangle ((GdkWindow *)parentwin, &visible_rect);
|
|
/* Convert rect to "window" coords */
|
|
visible_rect.x += - x_offset;
|
|
visible_rect.y += - y_offset;
|
|
|
|
cairo_region_intersect_rectangle (real_clip_region, &visible_rect);
|
|
}
|
|
|
|
if (base_x_offset)
|
|
*base_x_offset = x_offset;
|
|
if (base_y_offset)
|
|
*base_y_offset = y_offset;
|
|
|
|
return real_clip_region;
|
|
}
|
|
|
|
void
|
|
_gdk_window_add_damage (GdkWindow *toplevel,
|
|
cairo_region_t *damaged_region)
|
|
{
|
|
GdkDisplay *display;
|
|
GdkEvent event = { 0, };
|
|
event.expose.type = GDK_DAMAGE;
|
|
event.expose.window = toplevel;
|
|
event.expose.send_event = FALSE;
|
|
event.expose.region = damaged_region;
|
|
cairo_region_get_extents (event.expose.region, &event.expose.area);
|
|
display = gdk_drawable_get_display (event.expose.window);
|
|
_gdk_event_queue_append (display, gdk_event_copy (&event));
|
|
}
|
|
|
|
static void
|
|
gdk_window_redirect_free (GdkWindowRedirect *redirect)
|
|
{
|
|
g_object_unref (redirect->pixmap);
|
|
g_free (redirect);
|
|
}
|
|
|
|
/* Gets the toplevel for a window as used for events,
|
|
i.e. including offscreen parents */
|
|
static GdkWindowObject *
|
|
get_event_parent (GdkWindowObject *window)
|
|
{
|
|
if (gdk_window_is_offscreen (window))
|
|
return (GdkWindowObject *)gdk_offscreen_window_get_embedder ((GdkWindow *)window);
|
|
else
|
|
return window->parent;
|
|
}
|
|
|
|
/* Gets the toplevel for a window as used for events,
|
|
i.e. including offscreen parents going up to the native
|
|
toplevel */
|
|
static GdkWindow *
|
|
get_event_toplevel (GdkWindow *w)
|
|
{
|
|
GdkWindowObject *private = GDK_WINDOW_OBJECT (w);
|
|
GdkWindowObject *parent;
|
|
|
|
while ((parent = get_event_parent (private)) != NULL &&
|
|
(parent->window_type != GDK_WINDOW_ROOT))
|
|
private = parent;
|
|
|
|
return GDK_WINDOW (private);
|
|
}
|
|
|
|
gboolean
|
|
_gdk_window_event_parent_of (GdkWindow *parent,
|
|
GdkWindow *child)
|
|
{
|
|
GdkWindow *w;
|
|
|
|
w = child;
|
|
while (w != NULL)
|
|
{
|
|
if (w == parent)
|
|
return TRUE;
|
|
|
|
w = (GdkWindow *)get_event_parent ((GdkWindowObject *)w);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
update_cursor (GdkDisplay *display,
|
|
GdkDevice *device)
|
|
{
|
|
GdkWindowObject *cursor_window, *parent, *toplevel;
|
|
GdkWindow *pointer_window;
|
|
GdkWindowImplIface *impl_iface;
|
|
GdkPointerWindowInfo *pointer_info;
|
|
GdkDeviceGrabInfo *grab;
|
|
GdkCursor *cursor;
|
|
|
|
pointer_info = _gdk_display_get_pointer_info (display, device);
|
|
pointer_window = pointer_info->window_under_pointer;
|
|
|
|
/* We ignore the serials here and just pick the last grab
|
|
we've sent, as that would shortly be used anyway. */
|
|
grab = _gdk_display_get_last_device_grab (display, device);
|
|
if (/* have grab */
|
|
grab != NULL &&
|
|
/* the pointer is not in a descendant of the grab window */
|
|
!_gdk_window_event_parent_of (grab->window, pointer_window))
|
|
{
|
|
/* use the cursor from the grab window */
|
|
cursor_window = (GdkWindowObject *) grab->window;
|
|
}
|
|
else
|
|
{
|
|
/* otherwise use the cursor from the pointer window */
|
|
cursor_window = (GdkWindowObject *) pointer_window;
|
|
}
|
|
|
|
/* Find the first window with the cursor actually set, as
|
|
the cursor is inherited from the parent */
|
|
while (cursor_window->cursor == NULL &&
|
|
(parent = get_event_parent (cursor_window)) != NULL &&
|
|
parent->window_type != GDK_WINDOW_ROOT)
|
|
cursor_window = parent;
|
|
|
|
cursor = g_hash_table_lookup (cursor_window->device_cursor, device);
|
|
|
|
if (!cursor)
|
|
cursor = cursor_window->cursor;
|
|
|
|
/* Set all cursors on toplevel, otherwise its tricky to keep track of
|
|
* which native window has what cursor set. */
|
|
toplevel = (GdkWindowObject *) get_event_toplevel (pointer_window);
|
|
impl_iface = GDK_WINDOW_IMPL_GET_IFACE (toplevel->impl);
|
|
impl_iface->set_device_cursor ((GdkWindow *) toplevel, device, cursor);
|
|
}
|
|
|
|
static gboolean
|
|
point_in_window (GdkWindowObject *window,
|
|
gdouble x,
|
|
gdouble y)
|
|
{
|
|
return
|
|
x >= 0 && x < window->width &&
|
|
y >= 0 && y < window->height &&
|
|
(window->shape == NULL ||
|
|
cairo_region_contains_point (window->shape,
|
|
x, y)) &&
|
|
(window->input_shape == NULL ||
|
|
cairo_region_contains_point (window->input_shape,
|
|
x, y));
|
|
}
|
|
|
|
static GdkWindow *
|
|
convert_native_coords_to_toplevel (GdkWindow *window,
|
|
gdouble child_x,
|
|
gdouble child_y,
|
|
gdouble *toplevel_x,
|
|
gdouble *toplevel_y)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *)window;
|
|
gdouble x, y;
|
|
|
|
x = child_x;
|
|
y = child_y;
|
|
|
|
while (!gdk_window_is_toplevel (private))
|
|
{
|
|
x += private->x;
|
|
y += private->y;
|
|
private = private->parent;
|
|
}
|
|
|
|
*toplevel_x = x;
|
|
*toplevel_y = y;
|
|
|
|
return (GdkWindow *)private;
|
|
}
|
|
|
|
static void
|
|
convert_toplevel_coords_to_window (GdkWindow *window,
|
|
gdouble toplevel_x,
|
|
gdouble toplevel_y,
|
|
gdouble *window_x,
|
|
gdouble *window_y)
|
|
{
|
|
GdkWindowObject *private;
|
|
GdkWindowObject *parent;
|
|
gdouble x, y;
|
|
GList *children, *l;
|
|
|
|
private = GDK_WINDOW_OBJECT (window);
|
|
|
|
x = toplevel_x;
|
|
y = toplevel_y;
|
|
|
|
children = NULL;
|
|
while ((parent = get_event_parent (private)) != NULL &&
|
|
(parent->window_type != GDK_WINDOW_ROOT))
|
|
{
|
|
children = g_list_prepend (children, private);
|
|
private = parent;
|
|
}
|
|
|
|
for (l = children; l != NULL; l = l->next)
|
|
gdk_window_coords_from_parent (l->data, x, y, &x, &y);
|
|
|
|
g_list_free (children);
|
|
|
|
*window_x = x;
|
|
*window_y = y;
|
|
}
|
|
|
|
static GdkWindowObject *
|
|
pick_embedded_child (GdkWindowObject *window,
|
|
gdouble x,
|
|
gdouble y)
|
|
{
|
|
GdkWindowObject *res;
|
|
|
|
res = NULL;
|
|
g_signal_emit (window,
|
|
signals[PICK_EMBEDDED_CHILD], 0,
|
|
x, y, &res);
|
|
|
|
return res;
|
|
}
|
|
|
|
GdkWindow *
|
|
_gdk_window_find_child_at (GdkWindow *window,
|
|
int x,
|
|
int y)
|
|
{
|
|
GdkWindowObject *private, *sub;
|
|
double child_x, child_y;
|
|
GList *l;
|
|
|
|
private = (GdkWindowObject *)window;
|
|
|
|
if (point_in_window (private, x, y))
|
|
{
|
|
/* Children is ordered in reverse stack order, i.e. first is topmost */
|
|
for (l = private->children; l != NULL; l = l->next)
|
|
{
|
|
sub = l->data;
|
|
|
|
if (!GDK_WINDOW_IS_MAPPED (sub))
|
|
continue;
|
|
|
|
gdk_window_coords_from_parent ((GdkWindow *)sub,
|
|
x, y,
|
|
&child_x, &child_y);
|
|
if (point_in_window (sub, child_x, child_y))
|
|
return (GdkWindow *)sub;
|
|
}
|
|
|
|
if (private->num_offscreen_children > 0)
|
|
{
|
|
sub = pick_embedded_child (private,
|
|
x, y);
|
|
if (sub)
|
|
return (GdkWindow *)sub;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
GdkWindow *
|
|
_gdk_window_find_descendant_at (GdkWindow *toplevel,
|
|
gdouble x,
|
|
gdouble y,
|
|
gdouble *found_x,
|
|
gdouble *found_y)
|
|
{
|
|
GdkWindowObject *private, *sub;
|
|
gdouble child_x, child_y;
|
|
GList *l;
|
|
gboolean found;
|
|
|
|
private = (GdkWindowObject *)toplevel;
|
|
|
|
if (point_in_window (private, x, y))
|
|
{
|
|
do
|
|
{
|
|
found = FALSE;
|
|
/* Children is ordered in reverse stack order, i.e. first is topmost */
|
|
for (l = private->children; l != NULL; l = l->next)
|
|
{
|
|
sub = l->data;
|
|
|
|
if (!GDK_WINDOW_IS_MAPPED (sub))
|
|
continue;
|
|
|
|
gdk_window_coords_from_parent ((GdkWindow *)sub,
|
|
x, y,
|
|
&child_x, &child_y);
|
|
if (point_in_window (sub, child_x, child_y))
|
|
{
|
|
x = child_x;
|
|
y = child_y;
|
|
private = sub;
|
|
found = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
if (!found &&
|
|
private->num_offscreen_children > 0)
|
|
{
|
|
sub = pick_embedded_child (private,
|
|
x, y);
|
|
if (sub)
|
|
{
|
|
found = TRUE;
|
|
private = sub;
|
|
from_embedder (sub, x, y, &x, &y);
|
|
}
|
|
}
|
|
}
|
|
while (found);
|
|
}
|
|
else
|
|
{
|
|
/* Not in window at all */
|
|
private = NULL;
|
|
}
|
|
|
|
if (found_x)
|
|
*found_x = x;
|
|
if (found_y)
|
|
*found_y = y;
|
|
|
|
return (GdkWindow *)private;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_beep:
|
|
* @window: a toplevel #GdkWindow
|
|
*
|
|
* Emits a short beep associated to @window in the appropriate
|
|
* display, if supported. Otherwise, emits a short beep on
|
|
* the display just as gdk_display_beep().
|
|
*
|
|
* Since: 2.12
|
|
**/
|
|
void
|
|
gdk_window_beep (GdkWindow *window)
|
|
{
|
|
GdkDisplay *display;
|
|
GdkWindow *toplevel;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return;
|
|
|
|
toplevel = get_event_toplevel (window);
|
|
display = gdk_drawable_get_display (GDK_DRAWABLE (window));
|
|
|
|
if (toplevel && !gdk_window_is_offscreen ((GdkWindowObject *)toplevel))
|
|
_gdk_windowing_window_beep (toplevel);
|
|
else
|
|
gdk_display_beep (display);
|
|
}
|
|
|
|
/**
|
|
* gdk_window_set_support_multidevice:
|
|
* @window: a #GdkWindow.
|
|
* @support_multidevice: %TRUE to enable multidevice support in @window.
|
|
*
|
|
* This function will enable multidevice features in @window.
|
|
*
|
|
* Multidevice aware windows will need to handle properly multiple,
|
|
* per device enter/leave events, device grabs and grab ownerships.
|
|
*
|
|
* Since: 3.0
|
|
**/
|
|
void
|
|
gdk_window_set_support_multidevice (GdkWindow *window,
|
|
gboolean support_multidevice)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *) window;
|
|
|
|
g_return_if_fail (GDK_IS_WINDOW (window));
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return;
|
|
|
|
if (private->support_multidevice == support_multidevice)
|
|
return;
|
|
|
|
private->support_multidevice = support_multidevice;
|
|
|
|
/* FIXME: What to do if called when some pointers are inside the window ? */
|
|
}
|
|
|
|
/**
|
|
* gdk_window_get_support_multidevice:
|
|
* @window: a #GdkWindow.
|
|
*
|
|
* Returns %TRUE if the window is aware of the existence of multiple
|
|
* devices.
|
|
*
|
|
* Returns: %TRUE if the window handles multidevice features.
|
|
*
|
|
* Since: 3.0
|
|
**/
|
|
gboolean
|
|
gdk_window_get_support_multidevice (GdkWindow *window)
|
|
{
|
|
GdkWindowObject *private = (GdkWindowObject *) window;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
|
|
|
if (GDK_WINDOW_DESTROYED (window))
|
|
return FALSE;
|
|
|
|
return private->support_multidevice;
|
|
}
|
|
|
|
static const guint type_masks[] = {
|
|
GDK_SUBSTRUCTURE_MASK, /* GDK_DELETE = 0 */
|
|
GDK_STRUCTURE_MASK, /* GDK_DESTROY = 1 */
|
|
GDK_EXPOSURE_MASK, /* GDK_EXPOSE = 2 */
|
|
GDK_POINTER_MOTION_MASK, /* GDK_MOTION_NOTIFY = 3 */
|
|
GDK_BUTTON_PRESS_MASK, /* GDK_BUTTON_PRESS = 4 */
|
|
GDK_BUTTON_PRESS_MASK, /* GDK_2BUTTON_PRESS = 5 */
|
|
GDK_BUTTON_PRESS_MASK, /* GDK_3BUTTON_PRESS = 6 */
|
|
GDK_BUTTON_RELEASE_MASK, /* GDK_BUTTON_RELEASE = 7 */
|
|
GDK_KEY_PRESS_MASK, /* GDK_KEY_PRESS = 8 */
|
|
GDK_KEY_RELEASE_MASK, /* GDK_KEY_RELEASE = 9 */
|
|
GDK_ENTER_NOTIFY_MASK, /* GDK_ENTER_NOTIFY = 10 */
|
|
GDK_LEAVE_NOTIFY_MASK, /* GDK_LEAVE_NOTIFY = 11 */
|
|
GDK_FOCUS_CHANGE_MASK, /* GDK_FOCUS_CHANGE = 12 */
|
|
GDK_STRUCTURE_MASK, /* GDK_CONFIGURE = 13 */
|
|
GDK_VISIBILITY_NOTIFY_MASK, /* GDK_MAP = 14 */
|
|
GDK_VISIBILITY_NOTIFY_MASK, /* GDK_UNMAP = 15 */
|
|
GDK_PROPERTY_CHANGE_MASK, /* GDK_PROPERTY_NOTIFY = 16 */
|
|
GDK_PROPERTY_CHANGE_MASK, /* GDK_SELECTION_CLEAR = 17 */
|
|
GDK_PROPERTY_CHANGE_MASK, /* GDK_SELECTION_REQUEST = 18 */
|
|
GDK_PROPERTY_CHANGE_MASK, /* GDK_SELECTION_NOTIFY = 19 */
|
|
GDK_PROXIMITY_IN_MASK, /* GDK_PROXIMITY_IN = 20 */
|
|
GDK_PROXIMITY_OUT_MASK, /* GDK_PROXIMITY_OUT = 21 */
|
|
GDK_ALL_EVENTS_MASK, /* GDK_DRAG_ENTER = 22 */
|
|
GDK_ALL_EVENTS_MASK, /* GDK_DRAG_LEAVE = 23 */
|
|
GDK_ALL_EVENTS_MASK, /* GDK_DRAG_MOTION = 24 */
|
|
GDK_ALL_EVENTS_MASK, /* GDK_DRAG_STATUS = 25 */
|
|
GDK_ALL_EVENTS_MASK, /* GDK_DROP_START = 26 */
|
|
GDK_ALL_EVENTS_MASK, /* GDK_DROP_FINISHED = 27 */
|
|
GDK_ALL_EVENTS_MASK, /* GDK_CLIENT_EVENT = 28 */
|
|
GDK_VISIBILITY_NOTIFY_MASK, /* GDK_VISIBILITY_NOTIFY = 29 */
|
|
GDK_EXPOSURE_MASK, /* GDK_NO_EXPOSE = 30 */
|
|
GDK_SCROLL_MASK | GDK_BUTTON_PRESS_MASK,/* GDK_SCROLL= 31 */
|
|
0, /* GDK_WINDOW_STATE = 32 */
|
|
0, /* GDK_SETTING = 33 */
|
|
0, /* GDK_OWNER_CHANGE = 34 */
|
|
0, /* GDK_GRAB_BROKEN = 35 */
|
|
0, /* GDK_DAMAGE = 36 */
|
|
};
|
|
G_STATIC_ASSERT (G_N_ELEMENTS (type_masks) == GDK_EVENT_LAST);
|
|
|
|
/* send motion events if the right buttons are down */
|
|
static guint
|
|
update_evmask_for_button_motion (guint evmask,
|
|
GdkModifierType mask)
|
|
{
|
|
if (evmask & GDK_BUTTON_MOTION_MASK &&
|
|
mask & (GDK_BUTTON1_MASK |
|
|
GDK_BUTTON2_MASK |
|
|
GDK_BUTTON3_MASK |
|
|
GDK_BUTTON4_MASK |
|
|
GDK_BUTTON5_MASK))
|
|
evmask |= GDK_POINTER_MOTION_MASK;
|
|
|
|
if ((evmask & GDK_BUTTON1_MOTION_MASK && mask & GDK_BUTTON1_MASK) ||
|
|
(evmask & GDK_BUTTON2_MOTION_MASK && mask & GDK_BUTTON2_MASK) ||
|
|
(evmask & GDK_BUTTON3_MOTION_MASK && mask & GDK_BUTTON3_MASK))
|
|
evmask |= GDK_POINTER_MOTION_MASK;
|
|
|
|
return evmask;
|
|
}
|
|
|
|
static gboolean
|
|
is_button_type (GdkEventType type)
|
|
{
|
|
return type == GDK_BUTTON_PRESS ||
|
|
type == GDK_2BUTTON_PRESS ||
|
|
type == GDK_3BUTTON_PRESS ||
|
|
type == GDK_BUTTON_RELEASE ||
|
|
type == GDK_SCROLL;
|
|
}
|
|
|
|
static gboolean
|
|
is_motion_type (GdkEventType type)
|
|
{
|
|
return type == GDK_MOTION_NOTIFY ||
|
|
type == GDK_ENTER_NOTIFY ||
|
|
type == GDK_LEAVE_NOTIFY;
|
|
}
|
|
|
|
static GdkWindowObject *
|
|
find_common_ancestor (GdkWindowObject *win1,
|
|
GdkWindowObject *win2)
|
|
{
|
|
GdkWindowObject *tmp;
|
|
GList *path1 = NULL, *path2 = NULL;
|
|
GList *list1, *list2;
|
|
|
|
tmp = win1;
|
|
while (tmp != NULL && tmp->window_type != GDK_WINDOW_ROOT)
|
|
{
|
|
path1 = g_list_prepend (path1, tmp);
|
|
tmp = get_event_parent (tmp);
|
|
}
|
|
|
|
tmp = win2;
|
|
while (tmp != NULL && tmp->window_type != GDK_WINDOW_ROOT)
|
|
{
|
|
path2 = g_list_prepend (path2, tmp);
|
|
tmp = get_event_parent (tmp);
|
|
}
|
|
|
|
list1 = path1;
|
|
list2 = path2;
|
|
tmp = NULL;
|
|
while (list1 && list2 && (list1->data == list2->data))
|
|
{
|
|
tmp = (GdkWindowObject *)list1->data;
|
|
list1 = g_list_next (list1);
|
|
list2 = g_list_next (list2);
|
|
}
|
|
g_list_free (path1);
|
|
g_list_free (path2);
|
|
|
|
return tmp;
|
|
}
|
|
|
|
GdkEvent *
|
|
_gdk_make_event (GdkWindow *window,
|
|
GdkEventType type,
|
|
GdkEvent *event_in_queue,
|
|
gboolean before_event)
|
|
{
|
|
GdkEvent *event = gdk_event_new (type);
|
|
guint32 the_time;
|
|
GdkModifierType the_state;
|
|
|
|
the_time = gdk_event_get_time (event_in_queue);
|
|
gdk_event_get_state (event_in_queue, &the_state);
|
|
|
|
event->any.window = g_object_ref (window);
|
|
event->any.send_event = FALSE;
|
|
if (event_in_queue && event_in_queue->any.send_event)
|
|
event->any.send_event = TRUE;
|
|
|
|
switch (type)
|
|
{
|
|
case GDK_MOTION_NOTIFY:
|
|
event->motion.time = the_time;
|
|
event->motion.axes = NULL;
|
|
event->motion.state = the_state;
|
|
break;
|
|
|
|
case GDK_BUTTON_PRESS:
|
|
case GDK_2BUTTON_PRESS:
|
|
case GDK_3BUTTON_PRESS:
|
|
case GDK_BUTTON_RELEASE:
|
|
event->button.time = the_time;
|
|
event->button.axes = NULL;
|
|
event->button.state = the_state;
|
|
break;
|
|
|
|
case GDK_SCROLL:
|
|
event->scroll.time = the_time;
|
|
event->scroll.state = the_state;
|
|
break;
|
|
|
|
case GDK_KEY_PRESS:
|
|
case GDK_KEY_RELEASE:
|
|
event->key.time = the_time;
|
|
event->key.state = the_state;
|
|
break;
|
|
|
|
case GDK_ENTER_NOTIFY:
|
|
case GDK_LEAVE_NOTIFY:
|
|
event->crossing.time = the_time;
|
|
event->crossing.state = the_state;
|
|
break;
|
|
|
|
case GDK_PROPERTY_NOTIFY:
|
|
event->property.time = the_time;
|
|
event->property.state = the_state;
|
|
break;
|
|
|
|
case GDK_SELECTION_CLEAR:
|
|
case GDK_SELECTION_REQUEST:
|
|
case GDK_SELECTION_NOTIFY:
|
|
event->selection.time = the_time;
|
|
break;
|
|
|
|
case GDK_PROXIMITY_IN:
|
|
case GDK_PROXIMITY_OUT:
|
|
event->proximity.time = the_time;
|
|
break;
|
|
|
|
case GDK_DRAG_ENTER:
|
|
case GDK_DRAG_LEAVE:
|
|
case GDK_DRAG_MOTION:
|
|
case GDK_DRAG_STATUS:
|
|
case GDK_DROP_START:
|
|
case GDK_DROP_FINISHED:
|
|
event->dnd.time = the_time;
|
|
break;
|
|
|
|
case GDK_FOCUS_CHANGE:
|
|
case GDK_CONFIGURE:
|
|
case GDK_MAP:
|
|
case GDK_UNMAP:
|
|
case GDK_CLIENT_EVENT:
|
|
case GDK_VISIBILITY_NOTIFY:
|
|
case GDK_NO_EXPOSE:
|
|
case GDK_DELETE:
|
|
case GDK_DESTROY:
|
|
case GDK_EXPOSE:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (event_in_queue)
|
|
{
|
|
if (before_event)
|
|
_gdk_event_queue_insert_before (gdk_drawable_get_display (window), event_in_queue, event);
|
|
else
|
|
_gdk_event_queue_insert_after (gdk_drawable_get_display (window), event_in_queue, event);
|
|
}
|
|
else
|
|
_gdk_event_queue_append (gdk_drawable_get_display (window), event);
|
|
|
|
return event;
|
|
}
|
|
|
|
static void
|
|
send_crossing_event (GdkDisplay *display,
|
|
GdkWindowObject *toplevel,
|
|
GdkWindowObject *window,
|
|
GdkEventType type,
|
|
GdkCrossingMode mode,
|
|
GdkNotifyType notify_type,
|
|
GdkWindow *subwindow,
|
|
GdkDevice *device,
|
|
gint toplevel_x,
|
|
gint toplevel_y,
|
|
GdkModifierType mask,
|
|
guint32 time_,
|
|
GdkEvent *event_in_queue,
|
|
gulong serial)
|
|
{
|
|
GdkEvent *event;
|
|
guint32 window_event_mask, type_event_mask;
|
|
GdkDeviceGrabInfo *grab;
|
|
gboolean block_event = FALSE;
|
|
|
|
grab = _gdk_display_has_device_grab (display, device, serial);
|
|
|
|
if (grab != NULL &&
|
|
!grab->owner_events)
|
|
{
|
|
/* !owner_event => only report events wrt grab window, ignore rest */
|
|
if ((GdkWindow *)window != grab->window)
|
|
return;
|
|
window_event_mask = grab->event_mask;
|
|
}
|
|
else
|
|
window_event_mask = window->event_mask;
|
|
|
|
if (type == GDK_LEAVE_NOTIFY)
|
|
{
|
|
type_event_mask = GDK_LEAVE_NOTIFY_MASK;
|
|
window->devices_inside = g_list_remove (window->devices_inside, device);
|
|
|
|
if (!window->support_multidevice && window->devices_inside)
|
|
{
|
|
/* Block leave events unless it's the last pointer */
|
|
block_event = TRUE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
type_event_mask = GDK_ENTER_NOTIFY_MASK;
|
|
|
|
if (!window->support_multidevice && window->devices_inside)
|
|
{
|
|
/* Only emit enter events for the first device */
|
|
block_event = TRUE;
|
|
}
|
|
|
|
if (gdk_device_get_device_type (device) == GDK_DEVICE_TYPE_MASTER &&
|
|
device->mode != GDK_MODE_DISABLED &&
|
|
!g_list_find (window->devices_inside, device))
|
|
window->devices_inside = g_list_prepend (window->devices_inside, device);
|
|
}
|
|
|
|
if (block_event)
|
|
return;
|
|
|
|
if (window_event_mask & type_event_mask)
|
|
{
|
|
event = _gdk_make_event ((GdkWindow *)window, type, event_in_queue, TRUE);
|
|
gdk_event_set_device (event, device);
|
|
event->crossing.time = time_;
|
|
event->crossing.subwindow = subwindow;
|
|
if (subwindow)
|
|
g_object_ref (subwindow);
|
|
convert_toplevel_coords_to_window ((GdkWindow *)window,
|
|
toplevel_x, toplevel_y,
|
|
&event->crossing.x, &event->crossing.y);
|
|
event->crossing.x_root = toplevel_x + toplevel->x;
|
|
event->crossing.y_root = toplevel_y + toplevel->y;
|
|
event->crossing.mode = mode;
|
|
event->crossing.detail = notify_type;
|
|
event->crossing.focus = FALSE;
|
|
event->crossing.state = mask;
|
|
}
|
|
}
|
|
|
|
|
|
/* The coordinates are in the toplevel window that src/dest are in.
|
|
* src and dest are always (if != NULL) in the same toplevel, as
|
|
* we get a leave-notify and set the window_under_pointer to null
|
|
* before crossing to another toplevel.
|
|
*/
|
|
void
|
|
_gdk_synthesize_crossing_events (GdkDisplay *display,
|
|
GdkWindow *src,
|
|
GdkWindow *dest,
|
|
GdkDevice *device,
|
|
GdkCrossingMode mode,
|
|
gint toplevel_x,
|
|
gint toplevel_y,
|
|
GdkModifierType mask,
|
|
guint32 time_,
|
|
GdkEvent *event_in_queue,
|
|
gulong serial,
|
|
gboolean non_linear)
|
|
{
|
|
GdkWindowObject *c;
|
|
GdkWindowObject *win, *last, *next;
|
|
GList *path, *list;
|
|
GdkWindowObject *a;
|
|
GdkWindowObject *b;
|
|
GdkWindowObject *toplevel;
|
|
GdkNotifyType notify_type;
|
|
|
|
/* TODO: Don't send events to toplevel, as we get those from the windowing system */
|
|
|
|
a = (GdkWindowObject *)src;
|
|
b = (GdkWindowObject *)dest;
|
|
if (a == b)
|
|
return; /* No crossings generated between src and dest */
|
|
|
|
if (gdk_device_get_device_type (device) != GDK_DEVICE_TYPE_MASTER)
|
|
{
|
|
if (a && gdk_window_get_device_events (src, device) == 0)
|
|
a = NULL;
|
|
|
|
if (b && gdk_window_get_device_events (dest, device) == 0)
|
|
b = NULL;
|
|
}
|
|
|
|
if (!a && !b)
|
|
return;
|
|
|
|
c = find_common_ancestor (a, b);
|
|
|
|
non_linear |= (c != a) && (c != b);
|
|
|
|
if (a) /* There might not be a source (i.e. if no previous pointer_in_window) */
|
|
{
|
|
toplevel = (GdkWindowObject *)gdk_window_get_toplevel ((GdkWindow *)a);
|
|
|
|
/* Traverse up from a to (excluding) c sending leave events */
|
|
if (non_linear)
|
|
notify_type = GDK_NOTIFY_NONLINEAR;
|
|
else if (c == a)
|
|
notify_type = GDK_NOTIFY_INFERIOR;
|
|
else
|
|
notify_type = GDK_NOTIFY_ANCESTOR;
|
|
send_crossing_event (display, toplevel,
|
|
a, GDK_LEAVE_NOTIFY,
|
|
mode,
|
|
notify_type,
|
|
NULL, device,
|
|
toplevel_x, toplevel_y,
|
|
mask, time_,
|
|
event_in_queue,
|
|
serial);
|
|
|
|
if (c != a)
|
|
{
|
|
if (non_linear)
|
|
notify_type = GDK_NOTIFY_NONLINEAR_VIRTUAL;
|
|
else
|
|
notify_type = GDK_NOTIFY_VIRTUAL;
|
|
|
|
last = a;
|
|
win = get_event_parent (a);
|
|
while (win != c && win->window_type != GDK_WINDOW_ROOT)
|
|
{
|
|
send_crossing_event (display, toplevel,
|
|
win, GDK_LEAVE_NOTIFY,
|
|
mode,
|
|
notify_type,
|
|
(GdkWindow *)last,
|
|
device,
|
|
toplevel_x, toplevel_y,
|
|
mask, time_,
|
|
event_in_queue,
|
|
serial);
|
|
|
|
last = win;
|
|
win = get_event_parent (win);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (b) /* Might not be a dest, e.g. if we're moving out of the window */
|
|
{
|
|
toplevel = (GdkWindowObject *)gdk_window_get_toplevel ((GdkWindow *)b);
|
|
|
|
/* Traverse down from c to b */
|
|
if (c != b)
|
|
{
|
|
path = NULL;
|
|
win = get_event_parent (b);
|
|
while (win != c && win->window_type != GDK_WINDOW_ROOT)
|
|
{
|
|
path = g_list_prepend (path, win);
|
|
win = get_event_parent (win);
|
|
}
|
|
|
|
if (non_linear)
|
|
notify_type = GDK_NOTIFY_NONLINEAR_VIRTUAL;
|
|
else
|
|
notify_type = GDK_NOTIFY_VIRTUAL;
|
|
|
|
list = path;
|
|
while (list)
|
|
{
|
|
win = (GdkWindowObject *)list->data;
|
|
list = g_list_next (list);
|
|
if (list)
|
|
next = (GdkWindowObject *)list->data;
|
|
else
|
|
next = b;
|
|
|
|
send_crossing_event (display, toplevel,
|
|
win, GDK_ENTER_NOTIFY,
|
|
mode,
|
|
notify_type,
|
|
(GdkWindow *)next,
|
|
device,
|
|
toplevel_x, toplevel_y,
|
|
mask, time_,
|
|
event_in_queue,
|
|
serial);
|
|
}
|
|
g_list_free (path);
|
|
}
|
|
|
|
|
|
if (non_linear)
|
|
notify_type = GDK_NOTIFY_NONLINEAR;
|
|
else if (c == a)
|
|
notify_type = GDK_NOTIFY_ANCESTOR;
|
|
else
|
|
notify_type = GDK_NOTIFY_INFERIOR;
|
|
|
|
send_crossing_event (display, toplevel,
|
|
b, GDK_ENTER_NOTIFY,
|
|
mode,
|
|
notify_type,
|
|
NULL,
|
|
device,
|
|
toplevel_x, toplevel_y,
|
|
mask, time_,
|
|
event_in_queue,
|
|
serial);
|
|
}
|
|
}
|
|
|
|
/* Returns the window inside the event window with the pointer in it
|
|
* at the specified coordinates, or NULL if its not in any child of
|
|
* the toplevel. It also takes into account !owner_events grabs.
|
|
*/
|
|
static GdkWindow *
|
|
get_pointer_window (GdkDisplay *display,
|
|
GdkWindow *event_window,
|
|
GdkDevice *device,
|
|
gdouble toplevel_x,
|
|
gdouble toplevel_y,
|
|
gulong serial)
|
|
{
|
|
GdkWindow *pointer_window;
|
|
GdkDeviceGrabInfo *grab;
|
|
GdkPointerWindowInfo *pointer_info;
|
|
|
|
pointer_info = _gdk_display_get_pointer_info (display, device);
|
|
|
|
if (event_window == pointer_info->toplevel_under_pointer)
|
|
pointer_window =
|
|
_gdk_window_find_descendant_at (event_window,
|
|
toplevel_x, toplevel_y,
|
|
NULL, NULL);
|
|
else
|
|
pointer_window = NULL;
|
|
|
|
grab = _gdk_display_has_device_grab (display, device, serial);
|
|
if (grab != NULL &&
|
|
!grab->owner_events &&
|
|
pointer_window != grab->window)
|
|
pointer_window = NULL;
|
|
|
|
return pointer_window;
|
|
}
|
|
|
|
void
|
|
_gdk_display_set_window_under_pointer (GdkDisplay *display,
|
|
GdkDevice *device,
|
|
GdkWindow *window)
|
|
{
|
|
GdkPointerWindowInfo *device_info;
|
|
|
|
/* We don't track this if all native, and it can cause issues
|
|
with the update_cursor call below */
|
|
if (_gdk_native_windows)
|
|
return;
|
|
|
|
device_info = _gdk_display_get_pointer_info (display, device);
|
|
|
|
if (device_info->window_under_pointer)
|
|
g_object_unref (device_info->window_under_pointer);
|
|
device_info->window_under_pointer = window;
|
|
|
|
if (window)
|
|
{
|
|
g_object_ref (window);
|
|
update_cursor (display, device);
|
|
}
|
|
|
|
_gdk_display_enable_motion_hints (display, device);
|
|
}
|
|
|
|
/**
|
|
* gdk_pointer_grab:
|
|
* @window: the #GdkWindow which will own the grab (the grab window).
|
|
* @owner_events: if %FALSE then all pointer events are reported with respect to
|
|
* @window and are only reported if selected by @event_mask. If %TRUE then pointer
|
|
* events for this application are reported as normal, but pointer events outside
|
|
* this application are reported with respect to @window and only if selected by
|
|
* @event_mask. In either mode, unreported events are discarded.
|
|
* @event_mask: specifies the event mask, which is used in accordance with
|
|
* @owner_events. Note that only pointer events (i.e. button and motion events)
|
|
* may be selected.
|
|
* @confine_to: If non-%NULL, the pointer will be confined to this
|
|
* window during the grab. If the pointer is outside @confine_to, it will
|
|
* automatically be moved to the closest edge of @confine_to and enter
|
|
* and leave events will be generated as necessary.
|
|
* @cursor: the cursor to display while the grab is active. If this is %NULL then
|
|
* the normal cursors are used for @window and its descendants, and the cursor
|
|
* for @window is used for all other windows.
|
|
* @time_: the timestamp of the event which led to this pointer grab. This usually
|
|
* comes from a #GdkEventButton struct, though %GDK_CURRENT_TIME can be used if
|
|
* the time isn't known.
|
|
*
|
|
* Grabs the pointer (usually a mouse) so that all events are passed to this
|
|
* application until the pointer is ungrabbed with gdk_pointer_ungrab(), or
|
|
* the grab window becomes unviewable.
|
|
* This overrides any previous pointer grab by this client.
|
|
*
|
|
* Pointer grabs are used for operations which need complete control over mouse
|
|
* events, even if the mouse leaves the application.
|
|
* For example in GTK+ it is used for Drag and Drop, for dragging the handle in
|
|
* the #GtkHPaned and #GtkVPaned widgets, and for resizing columns in #GtkCList
|
|
* widgets.
|
|
*
|
|
* Note that if the event mask of an X window has selected both button press and
|
|
* button release events, then a button press event will cause an automatic
|
|
* pointer grab until the button is released.
|
|
* X does this automatically since most applications expect to receive button
|
|
* press and release events in pairs.
|
|
* It is equivalent to a pointer grab on the window with @owner_events set to
|
|
* %TRUE.
|
|
*
|
|
* If you set up anything at the time you take the grab that needs to be cleaned
|
|
* up when the grab ends, you should handle the #GdkEventGrabBroken events that
|
|
* are emitted when the grab ends unvoluntarily.
|
|
*
|
|
* Returns: %GDK_GRAB_SUCCESS if the grab was successful.
|
|
*
|
|
* Deprecated: 3.0: Use gdk_device_grab() instead.
|
|
**/
|
|
GdkGrabStatus
|
|
gdk_pointer_grab (GdkWindow * window,
|
|
gboolean owner_events,
|
|
GdkEventMask event_mask,
|
|
GdkWindow * confine_to,
|
|
GdkCursor * cursor,
|
|
guint32 time)
|
|
{
|
|
GdkWindow *native;
|
|
GdkDisplay *display;
|
|
GdkDeviceManager *device_manager;
|
|
GdkDevice *device;
|
|
GdkGrabStatus res = 0;
|
|
gulong serial;
|
|
GList *devices, *dev;
|
|
|
|
g_return_val_if_fail (window != NULL, 0);
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
|
|
g_return_val_if_fail (confine_to == NULL || GDK_IS_WINDOW (confine_to), 0);
|
|
|
|
/* We need a native window for confine to to work, ensure we have one */
|
|
if (confine_to)
|
|
{
|
|
if (!gdk_window_ensure_native (confine_to))
|
|
{
|
|
g_warning ("Can't confine to grabbed window, not native");
|
|
confine_to = NULL;
|
|
}
|
|
}
|
|
|
|
/* Non-viewable client side window => fail */
|
|
if (!_gdk_window_has_impl (window) &&
|
|
!gdk_window_is_viewable (window))
|
|
return GDK_GRAB_NOT_VIEWABLE;
|
|
|
|
if (_gdk_native_windows)
|
|
native = window;
|
|
else
|
|
native = gdk_window_get_toplevel (window);
|
|
while (gdk_window_is_offscreen ((GdkWindowObject *)native))
|
|
{
|
|
native = gdk_offscreen_window_get_embedder (native);
|
|
|
|
if (native == NULL ||
|
|
(!_gdk_window_has_impl (native) &&
|
|
!gdk_window_is_viewable (native)))
|
|
return GDK_GRAB_NOT_VIEWABLE;
|
|
|
|
native = gdk_window_get_toplevel (native);
|
|
}
|
|
|
|
display = gdk_drawable_get_display (window);
|
|
|
|
serial = _gdk_windowing_window_get_next_serial (display);
|
|
device_manager = gdk_display_get_device_manager (display);
|
|
devices = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
|
|
|
|
/* FIXME: Should this be generic to all backends? */
|
|
/* FIXME: What happens with extended devices? */
|
|
for (dev = devices; dev; dev = dev->next)
|
|
{
|
|
device = dev->data;
|
|
|
|
if (device->source != GDK_SOURCE_MOUSE)
|
|
continue;
|
|
|
|
res = _gdk_windowing_device_grab (device,
|
|
window,
|
|
native,
|
|
owner_events,
|
|
get_native_grab_event_mask (event_mask),
|
|
confine_to,
|
|
cursor,
|
|
time);
|
|
|
|
if (res == GDK_GRAB_SUCCESS)
|
|
_gdk_display_add_device_grab (display,
|
|
device,
|
|
window,
|
|
native,
|
|
GDK_OWNERSHIP_NONE,
|
|
owner_events,
|
|
event_mask,
|
|
serial,
|
|
time,
|
|
FALSE);
|
|
}
|
|
|
|
/* FIXME: handle errors when grabbing */
|
|
|
|
g_list_free (devices);
|
|
|
|
return res;
|
|
}
|
|
|
|
/**
|
|
* gdk_keyboard_grab:
|
|
* @window: the #GdkWindow which will own the grab (the grab window).
|
|
* @owner_events: if %FALSE then all keyboard events are reported with respect to
|
|
* @window. If %TRUE then keyboard events for this application are
|
|
* reported as normal, but keyboard events outside this application
|
|
* are reported with respect to @window. Both key press and key
|
|
* release events are always reported, independant of the event mask
|
|
* set by the application.
|
|
* @time: a timestamp from a #GdkEvent, or %GDK_CURRENT_TIME if no timestamp is
|
|
available.
|
|
*
|
|
* Grabs the keyboard so that all events are passed to this
|
|
* application until the keyboard is ungrabbed with gdk_keyboard_ungrab().
|
|
* This overrides any previous keyboard grab by this client.
|
|
*
|
|
* If you set up anything at the time you take the grab that needs to be cleaned
|
|
* up when the grab ends, you should handle the #GdkEventGrabBroken events that
|
|
* are emitted when the grab ends unvoluntarily.
|
|
*
|
|
* Returns: %GDK_GRAB_SUCCESS if the grab was successful.
|
|
*
|
|
* Deprecated: 3.0: Use gdk_device_grab() instead.
|
|
**/
|
|
GdkGrabStatus
|
|
gdk_keyboard_grab (GdkWindow *window,
|
|
gboolean owner_events,
|
|
guint32 time)
|
|
{
|
|
GdkWindow *native;
|
|
GdkDisplay *display;
|
|
GdkDeviceManager *device_manager;
|
|
GdkDevice *device;
|
|
GdkGrabStatus res = 0;
|
|
gulong serial;
|
|
GList *devices, *dev;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
|
|
|
|
/* Non-viewable client side window => fail */
|
|
if (!_gdk_window_has_impl (window) &&
|
|
!gdk_window_is_viewable (window))
|
|
return GDK_GRAB_NOT_VIEWABLE;
|
|
|
|
if (_gdk_native_windows)
|
|
native = window;
|
|
else
|
|
native = gdk_window_get_toplevel (window);
|
|
|
|
while (gdk_window_is_offscreen ((GdkWindowObject *)native))
|
|
{
|
|
native = gdk_offscreen_window_get_embedder (native);
|
|
|
|
if (native == NULL ||
|
|
(!_gdk_window_has_impl (native) &&
|
|
!gdk_window_is_viewable (native)))
|
|
return GDK_GRAB_NOT_VIEWABLE;
|
|
|
|
native = gdk_window_get_toplevel (native);
|
|
}
|
|
|
|
display = gdk_drawable_get_display (window);
|
|
|
|
serial = _gdk_windowing_window_get_next_serial (display);
|
|
device_manager = gdk_display_get_device_manager (display);
|
|
devices = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
|
|
|
|
/* FIXME: Should this be generic to all backends? */
|
|
/* FIXME: What happens with extended devices? */
|
|
for (dev = devices; dev; dev = dev->next)
|
|
{
|
|
device = dev->data;
|
|
|
|
if (device->source != GDK_SOURCE_KEYBOARD)
|
|
continue;
|
|
|
|
res = _gdk_windowing_device_grab (device,
|
|
window,
|
|
native,
|
|
owner_events,
|
|
GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK,
|
|
NULL,
|
|
NULL,
|
|
time);
|
|
|
|
if (res == GDK_GRAB_SUCCESS)
|
|
_gdk_display_add_device_grab (display,
|
|
device,
|
|
window,
|
|
native,
|
|
GDK_OWNERSHIP_NONE,
|
|
owner_events, 0,
|
|
serial,
|
|
time,
|
|
FALSE);
|
|
}
|
|
|
|
/* FIXME: handle errors when grabbing */
|
|
|
|
g_list_free (devices);
|
|
|
|
return res;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_geometry_changed:
|
|
* @window: an embedded offscreen #GdkWindow
|
|
*
|
|
* This function informs GDK that the geometry of an embedded
|
|
* offscreen window has changed. This is necessary for GDK to keep
|
|
* track of which offscreen window the pointer is in.
|
|
*
|
|
* Since: 2.18
|
|
*/
|
|
void
|
|
gdk_window_geometry_changed (GdkWindow *window)
|
|
{
|
|
_gdk_synthesize_crossing_events_for_geometry_change (window);
|
|
}
|
|
|
|
static gboolean
|
|
do_synthesize_crossing_event (gpointer data)
|
|
{
|
|
GdkDisplay *display;
|
|
GdkWindow *changed_toplevel;
|
|
GdkWindowObject *changed_toplevel_priv;
|
|
GHashTableIter iter;
|
|
gpointer key, value;
|
|
gulong serial;
|
|
|
|
changed_toplevel = data;
|
|
changed_toplevel_priv = (GdkWindowObject *)changed_toplevel;
|
|
|
|
changed_toplevel_priv->synthesize_crossing_event_queued = FALSE;
|
|
|
|
if (GDK_WINDOW_DESTROYED (changed_toplevel))
|
|
return FALSE;
|
|
|
|
display = gdk_drawable_get_display (changed_toplevel);
|
|
serial = _gdk_windowing_window_get_next_serial (display);
|
|
g_hash_table_iter_init (&iter, display->pointers_info);
|
|
|
|
while (g_hash_table_iter_next (&iter, &key, &value))
|
|
{
|
|
GdkWindow *new_window_under_pointer;
|
|
GdkPointerWindowInfo *pointer_info = value;
|
|
GdkDevice *device = key;
|
|
|
|
if (changed_toplevel == pointer_info->toplevel_under_pointer)
|
|
{
|
|
new_window_under_pointer =
|
|
get_pointer_window (display, changed_toplevel,
|
|
device,
|
|
pointer_info->toplevel_x,
|
|
pointer_info->toplevel_y,
|
|
serial);
|
|
if (new_window_under_pointer != pointer_info->window_under_pointer)
|
|
{
|
|
_gdk_synthesize_crossing_events (display,
|
|
pointer_info->window_under_pointer,
|
|
new_window_under_pointer,
|
|
device,
|
|
GDK_CROSSING_NORMAL,
|
|
pointer_info->toplevel_x,
|
|
pointer_info->toplevel_y,
|
|
pointer_info->state,
|
|
GDK_CURRENT_TIME,
|
|
NULL,
|
|
serial,
|
|
FALSE);
|
|
_gdk_display_set_window_under_pointer (display, device, new_window_under_pointer);
|
|
}
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
void
|
|
_gdk_synthesize_crossing_events_for_geometry_change (GdkWindow *changed_window)
|
|
{
|
|
GdkDisplay *display;
|
|
GdkWindow *toplevel;
|
|
GdkWindowObject *toplevel_priv;
|
|
|
|
if (_gdk_native_windows)
|
|
return; /* We use the native crossing events if all native */
|
|
|
|
display = gdk_drawable_get_display (changed_window);
|
|
|
|
toplevel = get_event_toplevel (changed_window);
|
|
toplevel_priv = (GdkWindowObject *) toplevel;
|
|
|
|
if (!toplevel_priv->synthesize_crossing_event_queued)
|
|
{
|
|
toplevel_priv->synthesize_crossing_event_queued = TRUE;
|
|
|
|
g_idle_add_full (GDK_PRIORITY_EVENTS - 1,
|
|
do_synthesize_crossing_event,
|
|
g_object_ref (toplevel),
|
|
g_object_unref);
|
|
}
|
|
}
|
|
|
|
/* Don't use for crossing events */
|
|
static GdkWindow *
|
|
get_event_window (GdkDisplay *display,
|
|
GdkDevice *device,
|
|
GdkWindow *pointer_window,
|
|
GdkEventType type,
|
|
GdkModifierType mask,
|
|
guint *evmask_out,
|
|
gulong serial)
|
|
{
|
|
guint evmask;
|
|
GdkWindow *grab_window;
|
|
GdkWindowObject *w;
|
|
GdkDeviceGrabInfo *grab;
|
|
|
|
grab = _gdk_display_has_device_grab (display, device, serial);
|
|
|
|
if (grab != NULL && !grab->owner_events)
|
|
{
|
|
evmask = grab->event_mask;
|
|
evmask = update_evmask_for_button_motion (evmask, mask);
|
|
|
|
grab_window = grab->window;
|
|
|
|
if (evmask & type_masks[type])
|
|
{
|
|
if (evmask_out)
|
|
*evmask_out = evmask;
|
|
return grab_window;
|
|
}
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
w = (GdkWindowObject *)pointer_window;
|
|
while (w != NULL)
|
|
{
|
|
evmask = w->event_mask;
|
|
evmask = update_evmask_for_button_motion (evmask, mask);
|
|
|
|
if (evmask & type_masks[type])
|
|
{
|
|
if (evmask_out)
|
|
*evmask_out = evmask;
|
|
return (GdkWindow *)w;
|
|
}
|
|
|
|
w = get_event_parent (w);
|
|
}
|
|
|
|
if (grab != NULL &&
|
|
grab->owner_events)
|
|
{
|
|
evmask = grab->event_mask;
|
|
evmask = update_evmask_for_button_motion (evmask, mask);
|
|
|
|
if (evmask & type_masks[type])
|
|
{
|
|
if (evmask_out)
|
|
*evmask_out = evmask;
|
|
return grab->window;
|
|
}
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static gboolean
|
|
proxy_pointer_event (GdkDisplay *display,
|
|
GdkEvent *source_event,
|
|
gulong serial)
|
|
{
|
|
GdkWindow *toplevel_window, *event_window;
|
|
GdkWindow *pointer_window;
|
|
GdkPointerWindowInfo *pointer_info;
|
|
GdkDevice *device;
|
|
GdkEvent *event;
|
|
guint state;
|
|
gdouble toplevel_x, toplevel_y;
|
|
guint32 time_;
|
|
gboolean non_linear;
|
|
|
|
event_window = source_event->any.window;
|
|
gdk_event_get_coords (source_event, &toplevel_x, &toplevel_y);
|
|
gdk_event_get_state (source_event, &state);
|
|
time_ = gdk_event_get_time (source_event);
|
|
device = gdk_event_get_device (source_event);
|
|
pointer_info = _gdk_display_get_pointer_info (display, device);
|
|
toplevel_window = convert_native_coords_to_toplevel (event_window,
|
|
toplevel_x, toplevel_y,
|
|
&toplevel_x, &toplevel_y);
|
|
|
|
non_linear = FALSE;
|
|
if ((source_event->type == GDK_LEAVE_NOTIFY ||
|
|
source_event->type == GDK_ENTER_NOTIFY) &&
|
|
(source_event->crossing.detail == GDK_NOTIFY_NONLINEAR ||
|
|
source_event->crossing.detail == GDK_NOTIFY_NONLINEAR_VIRTUAL))
|
|
non_linear = TRUE;
|
|
|
|
/* If we get crossing events with subwindow unexpectedly being NULL
|
|
that means there is a native subwindow that gdk doesn't know about.
|
|
We track these and forward them, with the correct virtual window
|
|
events inbetween.
|
|
This is important to get right, as metacity uses gdk for the frame
|
|
windows, but gdk doesn't know about the client windows reparented
|
|
into the frame. */
|
|
if (((source_event->type == GDK_LEAVE_NOTIFY &&
|
|
source_event->crossing.detail == GDK_NOTIFY_INFERIOR) ||
|
|
(source_event->type == GDK_ENTER_NOTIFY &&
|
|
(source_event->crossing.detail == GDK_NOTIFY_VIRTUAL ||
|
|
source_event->crossing.detail == GDK_NOTIFY_NONLINEAR_VIRTUAL))) &&
|
|
source_event->crossing.subwindow == NULL)
|
|
{
|
|
/* Left for an unknown (to gdk) subwindow */
|
|
|
|
/* Send leave events from window under pointer to event window
|
|
that will get the subwindow == NULL window */
|
|
_gdk_synthesize_crossing_events (display,
|
|
pointer_info->window_under_pointer,
|
|
event_window,
|
|
device,
|
|
source_event->crossing.mode,
|
|
toplevel_x, toplevel_y,
|
|
state, time_,
|
|
source_event,
|
|
serial,
|
|
non_linear);
|
|
|
|
/* Send subwindow == NULL event */
|
|
send_crossing_event (display,
|
|
(GdkWindowObject *)toplevel_window,
|
|
(GdkWindowObject *)event_window,
|
|
source_event->type,
|
|
source_event->crossing.mode,
|
|
source_event->crossing.detail,
|
|
NULL,
|
|
device,
|
|
toplevel_x, toplevel_y,
|
|
state, time_,
|
|
source_event,
|
|
serial);
|
|
|
|
_gdk_display_set_window_under_pointer (display, device, NULL);
|
|
return TRUE;
|
|
}
|
|
|
|
pointer_window = get_pointer_window (display, toplevel_window, device,
|
|
toplevel_x, toplevel_y, serial);
|
|
|
|
if (((source_event->type == GDK_ENTER_NOTIFY &&
|
|
source_event->crossing.detail == GDK_NOTIFY_INFERIOR) ||
|
|
(source_event->type == GDK_LEAVE_NOTIFY &&
|
|
(source_event->crossing.detail == GDK_NOTIFY_VIRTUAL ||
|
|
source_event->crossing.detail == GDK_NOTIFY_NONLINEAR_VIRTUAL))) &&
|
|
source_event->crossing.subwindow == NULL)
|
|
{
|
|
/* Entered from an unknown (to gdk) subwindow */
|
|
|
|
/* Send subwindow == NULL event */
|
|
send_crossing_event (display,
|
|
(GdkWindowObject *)toplevel_window,
|
|
(GdkWindowObject *)event_window,
|
|
source_event->type,
|
|
source_event->crossing.mode,
|
|
source_event->crossing.detail,
|
|
NULL,
|
|
device,
|
|
toplevel_x, toplevel_y,
|
|
state, time_,
|
|
source_event,
|
|
serial);
|
|
|
|
/* Send enter events from event window to pointer_window */
|
|
_gdk_synthesize_crossing_events (display,
|
|
event_window,
|
|
pointer_window,
|
|
device,
|
|
source_event->crossing.mode,
|
|
toplevel_x, toplevel_y,
|
|
state, time_,
|
|
source_event,
|
|
serial, non_linear);
|
|
_gdk_display_set_window_under_pointer (display, device, pointer_window);
|
|
return TRUE;
|
|
}
|
|
|
|
if (pointer_info->window_under_pointer != pointer_window)
|
|
{
|
|
/* Either a toplevel crossing notify that ended up inside a child window,
|
|
or a motion notify that got into another child window */
|
|
|
|
/* Different than last time, send crossing events */
|
|
_gdk_synthesize_crossing_events (display,
|
|
pointer_info->window_under_pointer,
|
|
pointer_window,
|
|
device,
|
|
GDK_CROSSING_NORMAL,
|
|
toplevel_x, toplevel_y,
|
|
state, time_,
|
|
source_event,
|
|
serial, non_linear);
|
|
_gdk_display_set_window_under_pointer (display, device, pointer_window);
|
|
}
|
|
else if (source_event->type == GDK_MOTION_NOTIFY)
|
|
{
|
|
GdkWindow *event_win;
|
|
guint evmask;
|
|
gboolean is_hint;
|
|
|
|
event_win = get_event_window (display,
|
|
device,
|
|
pointer_window,
|
|
source_event->type,
|
|
state,
|
|
&evmask,
|
|
serial);
|
|
|
|
if (event_win &&
|
|
gdk_device_get_device_type (device) != GDK_DEVICE_TYPE_MASTER &&
|
|
gdk_window_get_device_events (event_win, device) == 0)
|
|
return TRUE;
|
|
|
|
is_hint = FALSE;
|
|
|
|
if (event_win &&
|
|
(evmask & GDK_POINTER_MOTION_HINT_MASK))
|
|
{
|
|
gulong *device_serial;
|
|
|
|
device_serial = g_hash_table_lookup (display->motion_hint_info, device);
|
|
|
|
if (!device_serial ||
|
|
(*device_serial != 0 &&
|
|
serial < *device_serial))
|
|
event_win = NULL; /* Ignore event */
|
|
else
|
|
{
|
|
is_hint = TRUE;
|
|
*device_serial = G_MAXULONG;
|
|
}
|
|
}
|
|
|
|
if (event_win && !display->ignore_core_events)
|
|
{
|
|
event = _gdk_make_event (event_win, GDK_MOTION_NOTIFY, source_event, FALSE);
|
|
event->motion.time = time_;
|
|
convert_toplevel_coords_to_window (event_win,
|
|
toplevel_x, toplevel_y,
|
|
&event->motion.x, &event->motion.y);
|
|
event->motion.x_root = source_event->motion.x_root;
|
|
event->motion.y_root = source_event->motion.y_root;
|
|
event->motion.state = state;
|
|
event->motion.is_hint = is_hint;
|
|
event->motion.device = source_event->motion.device;
|
|
event->motion.axes = g_memdup (source_event->motion.axes,
|
|
sizeof (gdouble) * source_event->motion.device->num_axes);
|
|
}
|
|
}
|
|
|
|
/* unlink all move events from queue.
|
|
We handle our own, including our emulated masks. */
|
|
return TRUE;
|
|
}
|
|
|
|
#define GDK_ANY_BUTTON_MASK (GDK_BUTTON1_MASK | \
|
|
GDK_BUTTON2_MASK | \
|
|
GDK_BUTTON3_MASK | \
|
|
GDK_BUTTON4_MASK | \
|
|
GDK_BUTTON5_MASK)
|
|
|
|
static gboolean
|
|
proxy_button_event (GdkEvent *source_event,
|
|
gulong serial)
|
|
{
|
|
GdkWindow *toplevel_window, *event_window;
|
|
GdkWindow *event_win;
|
|
GdkWindow *pointer_window;
|
|
GdkWindowObject *parent;
|
|
GdkEvent *event;
|
|
guint state;
|
|
guint32 time_;
|
|
GdkEventType type;
|
|
gdouble toplevel_x, toplevel_y;
|
|
GdkDisplay *display;
|
|
GdkWindowObject *w;
|
|
GdkDevice *device;
|
|
|
|
type = source_event->any.type;
|
|
event_window = source_event->any.window;
|
|
gdk_event_get_coords (source_event, &toplevel_x, &toplevel_y);
|
|
gdk_event_get_state (source_event, &state);
|
|
time_ = gdk_event_get_time (source_event);
|
|
device = gdk_event_get_device (source_event);
|
|
display = gdk_drawable_get_display (source_event->any.window);
|
|
toplevel_window = convert_native_coords_to_toplevel (event_window,
|
|
toplevel_x, toplevel_y,
|
|
&toplevel_x, &toplevel_y);
|
|
|
|
if (type == GDK_BUTTON_PRESS &&
|
|
!source_event->any.send_event &&
|
|
_gdk_display_has_device_grab (display, device, serial) == NULL)
|
|
{
|
|
pointer_window =
|
|
_gdk_window_find_descendant_at (toplevel_window,
|
|
toplevel_x, toplevel_y,
|
|
NULL, NULL);
|
|
|
|
/* Find the event window, that gets the grab */
|
|
w = (GdkWindowObject *)pointer_window;
|
|
while (w != NULL &&
|
|
(parent = get_event_parent (w)) != NULL &&
|
|
parent->window_type != GDK_WINDOW_ROOT)
|
|
{
|
|
if (w->event_mask & GDK_BUTTON_PRESS_MASK)
|
|
break;
|
|
w = parent;
|
|
}
|
|
pointer_window = (GdkWindow *)w;
|
|
|
|
_gdk_display_add_device_grab (display,
|
|
device,
|
|
pointer_window,
|
|
toplevel_window,
|
|
GDK_OWNERSHIP_NONE,
|
|
FALSE,
|
|
gdk_window_get_events (pointer_window),
|
|
serial,
|
|
time_,
|
|
TRUE);
|
|
_gdk_display_device_grab_update (display, device, serial);
|
|
}
|
|
|
|
pointer_window = get_pointer_window (display, toplevel_window, device,
|
|
toplevel_x, toplevel_y,
|
|
serial);
|
|
|
|
event_win = get_event_window (display,
|
|
device,
|
|
pointer_window,
|
|
type, state,
|
|
NULL, serial);
|
|
|
|
if (event_win == NULL || display->ignore_core_events)
|
|
return TRUE;
|
|
|
|
if (gdk_device_get_device_type (device) != GDK_DEVICE_TYPE_MASTER &&
|
|
gdk_window_get_device_events (event_win, device) == 0)
|
|
return TRUE;
|
|
|
|
event = _gdk_make_event (event_win, type, source_event, FALSE);
|
|
|
|
switch (type)
|
|
{
|
|
case GDK_BUTTON_PRESS:
|
|
case GDK_BUTTON_RELEASE:
|
|
event->button.button = source_event->button.button;
|
|
convert_toplevel_coords_to_window (event_win,
|
|
toplevel_x, toplevel_y,
|
|
&event->button.x, &event->button.y);
|
|
event->button.x_root = source_event->button.x_root;
|
|
event->button.y_root = source_event->button.y_root;
|
|
event->button.state = state;
|
|
event->button.device = source_event->button.device;
|
|
event->button.axes = g_memdup (source_event->button.axes,
|
|
sizeof (gdouble) * source_event->button.device->num_axes);
|
|
|
|
if (type == GDK_BUTTON_PRESS)
|
|
_gdk_event_button_generate (display, event);
|
|
return TRUE;
|
|
|
|
case GDK_SCROLL:
|
|
event->scroll.direction = source_event->scroll.direction;
|
|
convert_toplevel_coords_to_window (event_win,
|
|
toplevel_x, toplevel_y,
|
|
&event->scroll.x, &event->scroll.y);
|
|
event->scroll.x_root = source_event->scroll.x_root;
|
|
event->scroll.y_root = source_event->scroll.y_root;
|
|
event->scroll.state = state;
|
|
event->scroll.device = source_event->scroll.device;
|
|
return TRUE;
|
|
|
|
default:
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE; /* Always unlink original, we want to obey the emulated event mask */
|
|
}
|
|
|
|
#ifdef DEBUG_WINDOW_PRINTING
|
|
static void
|
|
gdk_window_print (GdkWindowObject *window,
|
|
int indent)
|
|
{
|
|
GdkRectangle r;
|
|
const char *window_types[] = {
|
|
"root",
|
|
"toplevel",
|
|
"child",
|
|
"dialog",
|
|
"temp",
|
|
"foreign",
|
|
"offscreen"
|
|
};
|
|
|
|
g_print ("%*s%p: [%s] %d,%d %dx%d", indent, "", window,
|
|
window->user_data ? g_type_name_from_instance (window->user_data) : "no widget",
|
|
window->x, window->y,
|
|
window->width, window->height
|
|
);
|
|
|
|
if (gdk_window_has_impl (window))
|
|
{
|
|
#ifdef GDK_WINDOWING_X11
|
|
g_print (" impl(0x%lx)", gdk_x11_drawable_get_xid (GDK_DRAWABLE (window)));
|
|
#endif
|
|
}
|
|
|
|
if (window->window_type != GDK_WINDOW_CHILD)
|
|
g_print (" %s", window_types[window->window_type]);
|
|
|
|
if (window->input_only)
|
|
g_print (" input-only");
|
|
|
|
if (window->shaped)
|
|
g_print (" shaped");
|
|
|
|
if (!gdk_window_is_visible ((GdkWindow *)window))
|
|
g_print (" hidden");
|
|
|
|
g_print (" abs[%d,%d]",
|
|
window->abs_x, window->abs_y);
|
|
|
|
cairo_region_get_extents (window->clip_region, &r);
|
|
if (cairo_region_is_empty (window->clip_region))
|
|
g_print (" clipbox[empty]");
|
|
else
|
|
g_print (" clipbox[%d,%d %dx%d]", r.x, r.y, r.width, r.height);
|
|
|
|
g_print ("\n");
|
|
}
|
|
|
|
|
|
static void
|
|
gdk_window_print_tree (GdkWindow *window,
|
|
int indent,
|
|
gboolean include_input_only)
|
|
{
|
|
GdkWindowObject *private;
|
|
GList *l;
|
|
|
|
private = (GdkWindowObject *)window;
|
|
|
|
if (private->input_only && !include_input_only)
|
|
return;
|
|
|
|
gdk_window_print (private, indent);
|
|
|
|
for (l = private->children; l != NULL; l = l->next)
|
|
gdk_window_print_tree (l->data, indent + 4, include_input_only);
|
|
}
|
|
|
|
#endif /* DEBUG_WINDOW_PRINTING */
|
|
|
|
void
|
|
_gdk_windowing_got_event (GdkDisplay *display,
|
|
GList *event_link,
|
|
GdkEvent *event,
|
|
gulong serial)
|
|
{
|
|
GdkWindow *event_window;
|
|
GdkWindowObject *event_private;
|
|
gdouble x, y;
|
|
gboolean unlink_event;
|
|
guint old_state, old_button;
|
|
GdkDeviceGrabInfo *button_release_grab;
|
|
GdkPointerWindowInfo *pointer_info;
|
|
GdkDevice *device;
|
|
gboolean is_toplevel;
|
|
|
|
if (gdk_event_get_time (event) != GDK_CURRENT_TIME)
|
|
display->last_event_time = gdk_event_get_time (event);
|
|
|
|
device = gdk_event_get_device (event);
|
|
|
|
if (device)
|
|
{
|
|
GdkInputMode mode;
|
|
|
|
g_object_get (device, "input-mode", &mode, NULL);
|
|
_gdk_display_device_grab_update (display, device, serial);
|
|
|
|
if (mode == GDK_MODE_DISABLED ||
|
|
!_gdk_display_check_grab_ownership (display, device, serial))
|
|
{
|
|
/* Device events are blocked by another
|
|
* device grab, or the device is disabled
|
|
*/
|
|
unlink_event = TRUE;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
event_window = event->any.window;
|
|
if (!event_window)
|
|
return;
|
|
|
|
pointer_info = _gdk_display_get_pointer_info (display, device);
|
|
event_private = GDK_WINDOW_OBJECT (event_window);
|
|
|
|
#ifdef DEBUG_WINDOW_PRINTING
|
|
if (event->type == GDK_KEY_PRESS &&
|
|
(event->key.keyval == 0xa7 ||
|
|
event->key.keyval == 0xbd))
|
|
{
|
|
gdk_window_print_tree (event_window, 0,
|
|
event->key.keyval == 0xbd);
|
|
}
|
|
#endif
|
|
|
|
if (_gdk_native_windows)
|
|
{
|
|
if (event->type == GDK_BUTTON_PRESS &&
|
|
!event->any.send_event &&
|
|
_gdk_display_has_device_grab (display, device, serial) == NULL)
|
|
{
|
|
_gdk_display_add_device_grab (display,
|
|
device,
|
|
event_window,
|
|
event_window,
|
|
GDK_OWNERSHIP_NONE,
|
|
FALSE,
|
|
gdk_window_get_events (event_window),
|
|
serial,
|
|
gdk_event_get_time (event),
|
|
TRUE);
|
|
_gdk_display_device_grab_update (display, device, serial);
|
|
}
|
|
if (event->type == GDK_BUTTON_RELEASE &&
|
|
!event->any.send_event)
|
|
{
|
|
button_release_grab =
|
|
_gdk_display_has_device_grab (display, device, serial);
|
|
if (button_release_grab &&
|
|
button_release_grab->implicit &&
|
|
(event->button.state & GDK_ANY_BUTTON_MASK & ~(GDK_BUTTON1_MASK << (event->button.button - 1))) == 0)
|
|
{
|
|
button_release_grab->serial_end = serial;
|
|
button_release_grab->implicit_ungrab = FALSE;
|
|
_gdk_display_device_grab_update (display, device, serial);
|
|
}
|
|
}
|
|
|
|
if (event->type == GDK_BUTTON_PRESS)
|
|
_gdk_event_button_generate (display, event);
|
|
|
|
return;
|
|
}
|
|
|
|
if (event->type == GDK_VISIBILITY_NOTIFY)
|
|
{
|
|
event_private->native_visibility = event->visibility.state;
|
|
gdk_window_update_visibility_recursively (event_private,
|
|
event_private);
|
|
return;
|
|
}
|
|
|
|
if (!(is_button_type (event->type) ||
|
|
is_motion_type (event->type)) ||
|
|
event_private->window_type == GDK_WINDOW_ROOT)
|
|
return;
|
|
|
|
is_toplevel = gdk_window_is_toplevel (event_private);
|
|
|
|
if ((event->type == GDK_ENTER_NOTIFY ||
|
|
event->type == GDK_LEAVE_NOTIFY) &&
|
|
(event->crossing.mode == GDK_CROSSING_GRAB ||
|
|
event->crossing.mode == GDK_CROSSING_UNGRAB) &&
|
|
(_gdk_display_has_device_grab (display, device, serial) ||
|
|
event->crossing.detail == GDK_NOTIFY_INFERIOR))
|
|
{
|
|
/* We synthesize all crossing events due to grabs ourselves,
|
|
* so we ignore the native ones caused by our native pointer_grab
|
|
* calls. Otherwise we would proxy these crossing event and cause
|
|
* multiple copies of crossing events for grabs.
|
|
*
|
|
* We do want to handle grabs from other clients though, as for
|
|
* instance alt-tab in metacity causes grabs like these and
|
|
* we want to handle those. Thus the has_pointer_grab check.
|
|
*
|
|
* Implicit grabs on child windows create some grabbing events
|
|
* that are sent before the button press. This means we can't
|
|
* detect these with the has_pointer_grab check (as the implicit
|
|
* grab is only noticed when we get button press event), so we
|
|
* detect these events by checking for INFERIOR enter or leave
|
|
* events. These should never be a problem to filter out.
|
|
*/
|
|
|
|
/* We ended up in this window after some (perhaps other clients)
|
|
grab, so update the toplevel_under_window state */
|
|
if (is_toplevel &&
|
|
event->type == GDK_ENTER_NOTIFY &&
|
|
event->crossing.mode == GDK_CROSSING_UNGRAB)
|
|
{
|
|
if (pointer_info->toplevel_under_pointer)
|
|
g_object_unref (pointer_info->toplevel_under_pointer);
|
|
pointer_info->toplevel_under_pointer = g_object_ref (event_window);
|
|
}
|
|
|
|
unlink_event = TRUE;
|
|
goto out;
|
|
}
|
|
|
|
/* Track toplevel_under_pointer */
|
|
if (is_toplevel)
|
|
{
|
|
if (event->type == GDK_ENTER_NOTIFY &&
|
|
event->crossing.detail != GDK_NOTIFY_INFERIOR)
|
|
{
|
|
if (pointer_info->toplevel_under_pointer)
|
|
g_object_unref (pointer_info->toplevel_under_pointer);
|
|
pointer_info->toplevel_under_pointer = g_object_ref (event_window);
|
|
}
|
|
else if (event->type == GDK_LEAVE_NOTIFY &&
|
|
event->crossing.detail != GDK_NOTIFY_INFERIOR &&
|
|
pointer_info->toplevel_under_pointer == event_window)
|
|
{
|
|
if (pointer_info->toplevel_under_pointer)
|
|
g_object_unref (pointer_info->toplevel_under_pointer);
|
|
pointer_info->toplevel_under_pointer = NULL;
|
|
}
|
|
}
|
|
|
|
/* Store last pointer window and position/state */
|
|
old_state = pointer_info->state;
|
|
old_button = pointer_info->button;
|
|
|
|
gdk_event_get_coords (event, &x, &y);
|
|
convert_native_coords_to_toplevel (event_window, x, y, &x, &y);
|
|
pointer_info->toplevel_x = x;
|
|
pointer_info->toplevel_y = y;
|
|
gdk_event_get_state (event, &pointer_info->state);
|
|
if (event->type == GDK_BUTTON_PRESS ||
|
|
event->type == GDK_BUTTON_RELEASE)
|
|
pointer_info->button = event->button.button;
|
|
|
|
if (device &&
|
|
(pointer_info->state != old_state ||
|
|
pointer_info->button != old_button))
|
|
_gdk_display_enable_motion_hints (display, device);
|
|
|
|
unlink_event = FALSE;
|
|
if (is_motion_type (event->type))
|
|
unlink_event = proxy_pointer_event (display,
|
|
event,
|
|
serial);
|
|
else if (is_button_type (event->type))
|
|
unlink_event = proxy_button_event (event,
|
|
serial);
|
|
|
|
if (event->type == GDK_BUTTON_RELEASE &&
|
|
!event->any.send_event)
|
|
{
|
|
button_release_grab =
|
|
_gdk_display_has_device_grab (display, device, serial);
|
|
if (button_release_grab &&
|
|
button_release_grab->implicit &&
|
|
(event->button.state & GDK_ANY_BUTTON_MASK & ~(GDK_BUTTON1_MASK << (event->button.button - 1))) == 0)
|
|
{
|
|
button_release_grab->serial_end = serial;
|
|
button_release_grab->implicit_ungrab = FALSE;
|
|
_gdk_display_device_grab_update (display, device, serial);
|
|
}
|
|
}
|
|
|
|
out:
|
|
if (unlink_event)
|
|
{
|
|
_gdk_event_queue_remove_link (display, event_link);
|
|
g_list_free_1 (event_link);
|
|
gdk_event_free (event);
|
|
}
|
|
}
|
|
|
|
|
|
static GdkWindow *
|
|
get_extension_event_window (GdkDisplay *display,
|
|
GdkWindow *pointer_window,
|
|
GdkEventType type,
|
|
gulong serial)
|
|
{
|
|
guint evmask;
|
|
GdkWindow *grab_window;
|
|
GdkWindowObject *w;
|
|
GdkDeviceGrabInfo *grab;
|
|
|
|
/* FIXME: which device? */
|
|
grab = _gdk_display_has_device_grab (display, display->core_pointer, serial);
|
|
|
|
if (grab != NULL && !grab->owner_events)
|
|
{
|
|
evmask = grab->event_mask;
|
|
|
|
grab_window = grab->window;
|
|
|
|
if (evmask & type_masks[type])
|
|
return grab_window;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
w = (GdkWindowObject *)pointer_window;
|
|
while (w != NULL)
|
|
{
|
|
evmask = w->extension_events;
|
|
|
|
if (evmask & type_masks[type])
|
|
return (GdkWindow *)w;
|
|
|
|
w = get_event_parent (w);
|
|
}
|
|
|
|
if (grab != NULL &&
|
|
grab->owner_events)
|
|
{
|
|
evmask = grab->event_mask;
|
|
|
|
if (evmask & type_masks[type])
|
|
return grab->window;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
GdkWindow *
|
|
_gdk_window_get_input_window_for_event (GdkWindow *native_window,
|
|
GdkEventType event_type,
|
|
int x, int y,
|
|
gulong serial)
|
|
{
|
|
GdkDisplay *display;
|
|
GdkWindow *toplevel_window;
|
|
GdkWindow *pointer_window;
|
|
GdkWindow *event_win;
|
|
gdouble toplevel_x, toplevel_y;
|
|
|
|
toplevel_x = x;
|
|
toplevel_y = y;
|
|
|
|
display = gdk_drawable_get_display (native_window);
|
|
toplevel_window = convert_native_coords_to_toplevel (native_window,
|
|
toplevel_x, toplevel_y,
|
|
&toplevel_x, &toplevel_y);
|
|
/* FIXME: which device? */
|
|
pointer_window = get_pointer_window (display, toplevel_window, NULL,
|
|
toplevel_x, toplevel_y, serial);
|
|
event_win = get_extension_event_window (display,
|
|
pointer_window,
|
|
event_type,
|
|
serial);
|
|
|
|
return event_win;
|
|
}
|
|
|
|
/**
|
|
* gdk_window_create_similar_surface:
|
|
* @window: window to make new surface similar to
|
|
* @content: the content for the new surface
|
|
* @width: width of the new surface
|
|
* @height: height of the new surface
|
|
*
|
|
* Create a new surface that is as compatible as possible with the
|
|
* given @window. For example the new surface will have the same
|
|
* fallback resolution and font options as @window. Generally, the new
|
|
* surface will also use the same backend as @window, unless that is
|
|
* not possible for some reason. The type of the returned surface may
|
|
* be examined with cairo_surface_get_type().
|
|
*
|
|
* Initially the surface contents are all 0 (transparent if contents
|
|
* have transparency, black otherwise.)
|
|
*
|
|
* Returns: a pointer to the newly allocated surface. The caller
|
|
* owns the surface and should call cairo_surface_destroy() when done
|
|
* with it.
|
|
*
|
|
* This function always returns a valid pointer, but it will return a
|
|
* pointer to a "nil" surface if @other is already in an error state
|
|
* or any other error occurs.
|
|
*
|
|
* Since: 2.22
|
|
**/
|
|
cairo_surface_t *
|
|
gdk_window_create_similar_surface (GdkWindow * window,
|
|
cairo_content_t content,
|
|
int width,
|
|
int height)
|
|
{
|
|
cairo_surface_t *window_surface, *surface;
|
|
|
|
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
|
|
|
window_surface = _gdk_drawable_ref_cairo_surface (window);
|
|
|
|
surface = cairo_surface_create_similar (window_surface,
|
|
content,
|
|
width, height);
|
|
|
|
cairo_surface_destroy (window_surface);
|
|
|
|
return surface;
|
|
}
|
|
|