mirror of
https://gitlab.gnome.org/GNOME/gtk.git
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4c150d8eb5
Remove all the old 2.x and 3.x version annotations. GTK+ 4 is a new start, and from the perspective of a GTK+ 4 developer all these APIs have been around since the beginning.
7122 lines
202 KiB
C
7122 lines
202 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, see <http://www.gnu.org/licenses/>.
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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 <cairo-gobject.h>
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#include "gdkwindow.h"
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#include "gdkrectangle.h"
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#include "gdkinternals.h"
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#include "gdkintl.h"
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#include "gdkdisplayprivate.h"
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#include "gdkdeviceprivate.h"
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#include "gdkmarshalers.h"
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#include "gdkframeclockidle.h"
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#include "gdkwindowimpl.h"
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#include "gdkglcontextprivate.h"
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#include "gdkdrawingcontextprivate.h"
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#include "gdk-private.h"
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#include <math.h>
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#include <epoxy/gl.h>
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/* for the use of round() */
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#include "fallback-c89.c"
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#ifdef GDK_WINDOWING_WAYLAND
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#include "wayland/gdkwayland.h"
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#endif
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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 (usually) rectangular region on the screen.
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* It’s a low-level object, used to implement high-level objects such as
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* #GtkWidget and #GtkWindow on the GTK+ level. A #GtkWindow is a toplevel
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* window, the thing a user might think of as a “window” with a titlebar
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* and so on; a #GtkWindow may contain many sub-GdkWindows.
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*/
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/**
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* GdkWindow:
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*
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* The GdkWindow struct contains only private fields and
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* should not be accessed directly.
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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 available as “impl” in the window object.
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*
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* With the addition of client side windows this changes a bit. The
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* application-visible GdkWindow object behaves as it did before, but
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* such windows now don't a corresponding native window. Instead subwindows
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* windows are “client side”, i.e. emulated by the gdk code such
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* that clipping, drawing, moving, events etc work as expected.
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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, in window-relative coordinates (clip_region).
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*/
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enum {
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MOVED_TO_RECT,
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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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PROP_DISPLAY,
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PROP_STATE,
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LAST_PROP
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};
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/* Global info */
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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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static void recompute_visible_regions (GdkWindow *private,
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gboolean recalculate_children);
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static void gdk_window_invalidate_in_parent (GdkWindow *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 (GdkWindow *impl_window,
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cairo_region_t *region);
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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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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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static cairo_surface_t *gdk_window_ref_impl_surface (GdkWindow *window);
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static void gdk_window_set_frame_clock (GdkWindow *window,
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GdkFrameClock *clock);
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static guint signals[LAST_SIGNAL] = { 0 };
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static GParamSpec *properties[LAST_PROP] = { NULL, };
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G_DEFINE_ABSTRACT_TYPE (GdkWindow, gdk_window, G_TYPE_OBJECT)
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#ifdef DEBUG_WINDOW_PRINTING
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char *
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print_region (cairo_region_t *region)
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{
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GString *s = g_string_new ("{");
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if (cairo_region_is_empty (region))
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{
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g_string_append (s, "empty");
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}
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else
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{
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int num = cairo_region_num_rectangles (region);
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cairo_rectangle_int_t r;
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if (num == 1)
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{
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cairo_region_get_rectangle (region, 0, &r);
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g_string_append_printf (s, "%dx%d @%d,%d", r.width, r.height, r.x, r.y);
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}
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else
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{
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int i;
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cairo_region_get_extents (region, &r);
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g_string_append_printf (s, "extent: %dx%d @%d,%d, details: ", r.width, r.height, r.x, r.y);
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for (i = 0; i < num; i++)
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{
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cairo_region_get_rectangle (region, i, &r);
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g_string_append_printf (s, "[%dx%d @%d,%d]", r.width, r.height, r.x, r.y);
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if (i != num -1)
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g_string_append (s, ", ");
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}
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}
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}
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g_string_append (s, "}");
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return g_string_free (s, FALSE);
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}
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#endif
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static GList *
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list_insert_link_before (GList *list,
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GList *sibling,
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GList *link)
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{
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if (list == NULL || sibling == list)
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{
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link->prev = NULL;
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link->next = list;
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if (list)
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list->prev = link;
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return link;
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}
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else if (sibling == NULL)
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{
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GList *last = g_list_last (list);
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last->next = link;
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link->prev = last;
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link->next = NULL;
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return list;
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}
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else
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{
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link->next = sibling;
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link->prev = sibling->prev;
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sibling->prev = link;
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if (link->prev)
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link->prev->next = link;
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return list;
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}
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}
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static void
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gdk_window_init (GdkWindow *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->fullscreen_mode = GDK_FULLSCREEN_ON_CURRENT_MONITOR;
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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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window->children_list_node.data = window;
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window->device_cursor = g_hash_table_new_full (NULL, NULL,
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NULL, g_object_unref);
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}
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static void
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gdk_window_class_init (GdkWindowClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (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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/* 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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properties[PROP_CURSOR] =
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g_param_spec_object ("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 | G_PARAM_STATIC_STRINGS);
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/**
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* GdkWindow:display:
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*
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* The #GdkDisplay connection of the window. See gdk_window_get_display()
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* for details.
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*/
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properties[PROP_DISPLAY] =
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g_param_spec_object ("display",
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P_("Display"),
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P_("Display"),
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GDK_TYPE_DISPLAY,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
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properties[PROP_STATE] =
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g_param_spec_flags ("state",
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P_("State"),
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P_("State"),
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GDK_TYPE_WINDOW_STATE, GDK_WINDOW_STATE_WITHDRAWN,
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G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
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g_object_class_install_properties (object_class, LAST_PROP, properties);
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/**
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* GdkWindow::moved-to-rect:
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* @window: the #GdkWindow that moved
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* @flipped_rect: (nullable): the position of @window after any possible
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* flipping or %NULL if the backend can't obtain it
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* @final_rect: (nullable): the final position of @window or %NULL if the
|
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* backend can't obtain it
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* @flipped_x: %TRUE if the anchors were flipped horizontally
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* @flipped_y: %TRUE if the anchors were flipped vertically
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*
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* Emitted when the position of @window is finalized after being moved to a
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* destination rectangle.
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*
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* @window might be flipped over the destination rectangle in order to keep
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* it on-screen, in which case @flipped_x and @flipped_y will be set to %TRUE
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* accordingly.
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*
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* @flipped_rect is the ideal position of @window after any possible
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* flipping, but before any possible sliding. @final_rect is @flipped_rect,
|
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* but possibly translated in the case that flipping is still ineffective in
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* keeping @window on-screen.
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* Stability: Private
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*/
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signals[MOVED_TO_RECT] =
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g_signal_new (g_intern_static_string ("moved-to-rect"),
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_FIRST,
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0,
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NULL,
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NULL,
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_gdk_marshal_VOID__POINTER_POINTER_BOOLEAN_BOOLEAN,
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G_TYPE_NONE,
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4,
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G_TYPE_POINTER,
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G_TYPE_POINTER,
|
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G_TYPE_BOOLEAN,
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G_TYPE_BOOLEAN);
|
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}
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|
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static void
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seat_removed_cb (GdkDisplay *display,
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GdkSeat *seat,
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GdkWindow *window)
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{
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GdkDevice *device = gdk_seat_get_pointer (seat);
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window->devices_inside = g_list_remove (window->devices_inside, device);
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g_hash_table_remove (window->device_cursor, device);
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if (window->device_events)
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g_hash_table_remove (window->device_events, device);
|
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}
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||
|
||
static void
|
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gdk_window_finalize (GObject *object)
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{
|
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GdkWindow *window = GDK_WINDOW (object);
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||
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g_signal_handlers_disconnect_by_func (gdk_window_get_display (window),
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seat_removed_cb, window);
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|
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if (!GDK_WINDOW_DESTROYED (window))
|
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{
|
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if (GDK_WINDOW_TYPE (window) != GDK_WINDOW_FOREIGN)
|
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{
|
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g_warning ("losing last reference to undestroyed window");
|
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_gdk_window_destroy (window, FALSE);
|
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}
|
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else
|
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/* We use TRUE here, to keep us from actually calling
|
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* XDestroyWindow() on the window
|
||
*/
|
||
_gdk_window_destroy (window, TRUE);
|
||
}
|
||
|
||
if (window->impl)
|
||
{
|
||
g_object_unref (window->impl);
|
||
window->impl = NULL;
|
||
}
|
||
|
||
if (window->impl_window != window)
|
||
{
|
||
g_object_unref (window->impl_window);
|
||
window->impl_window = NULL;
|
||
}
|
||
|
||
if (window->shape)
|
||
cairo_region_destroy (window->shape);
|
||
|
||
if (window->input_shape)
|
||
cairo_region_destroy (window->input_shape);
|
||
|
||
if (window->cursor)
|
||
g_object_unref (window->cursor);
|
||
|
||
if (window->device_cursor)
|
||
g_hash_table_destroy (window->device_cursor);
|
||
|
||
if (window->device_events)
|
||
g_hash_table_destroy (window->device_events);
|
||
|
||
if (window->devices_inside)
|
||
g_list_free (window->devices_inside);
|
||
|
||
g_clear_object (&window->display);
|
||
|
||
if (window->opaque_region)
|
||
cairo_region_destroy (window->opaque_region);
|
||
|
||
G_OBJECT_CLASS (gdk_window_parent_class)->finalize (object);
|
||
}
|
||
|
||
static void
|
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gdk_window_set_property (GObject *object,
|
||
guint prop_id,
|
||
const GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GdkWindow *window = GDK_WINDOW (object);
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_CURSOR:
|
||
gdk_window_set_cursor (window, g_value_get_object (value));
|
||
break;
|
||
|
||
case PROP_DISPLAY:
|
||
window->display = g_value_dup_object (value);
|
||
g_assert (window->display != NULL);
|
||
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 = GDK_WINDOW (object);
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_CURSOR:
|
||
g_value_set_object (value, gdk_window_get_cursor (window));
|
||
break;
|
||
|
||
case PROP_DISPLAY:
|
||
g_value_set_object (value, window->display);
|
||
break;
|
||
|
||
case PROP_STATE:
|
||
g_value_set_flags (value, window->state);
|
||
break;
|
||
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
static gboolean
|
||
gdk_window_is_subsurface (GdkWindow *window)
|
||
{
|
||
return window->window_type == GDK_WINDOW_SUBSURFACE;
|
||
}
|
||
|
||
static GdkWindow *
|
||
gdk_window_get_impl_window (GdkWindow *window)
|
||
{
|
||
return window->impl_window;
|
||
}
|
||
|
||
GdkWindow *
|
||
_gdk_window_get_impl_window (GdkWindow *window)
|
||
{
|
||
return gdk_window_get_impl_window (window);
|
||
}
|
||
|
||
static gboolean
|
||
gdk_window_has_impl (GdkWindow *window)
|
||
{
|
||
return window->impl_window == window;
|
||
}
|
||
|
||
static gboolean
|
||
gdk_window_is_toplevel (GdkWindow *window)
|
||
{
|
||
return
|
||
window->parent == NULL ||
|
||
window->parent->window_type == GDK_WINDOW_ROOT;
|
||
}
|
||
|
||
gboolean
|
||
_gdk_window_has_impl (GdkWindow *window)
|
||
{
|
||
return gdk_window_has_impl (window);
|
||
}
|
||
|
||
static gboolean
|
||
gdk_window_has_no_impl (GdkWindow *window)
|
||
{
|
||
return window->impl_window != window;
|
||
}
|
||
|
||
static void
|
||
remove_sibling_overlapped_area (GdkWindow *window,
|
||
cairo_region_t *region)
|
||
{
|
||
GdkWindow *parent;
|
||
GdkWindow *sibling;
|
||
cairo_region_t *child_region;
|
||
GdkRectangle r;
|
||
GList *l;
|
||
|
||
parent = window->parent;
|
||
|
||
if (gdk_window_is_toplevel (window))
|
||
return;
|
||
|
||
/* Convert from from window coords to parent coords */
|
||
cairo_region_translate (region, window->x, window->y);
|
||
|
||
for (l = parent->children; l; l = l->next)
|
||
{
|
||
sibling = l->data;
|
||
|
||
if (sibling == window)
|
||
break;
|
||
|
||
if (!GDK_WINDOW_IS_MAPPED (sibling) || sibling->input_only)
|
||
continue;
|
||
|
||
r.x = sibling->x;
|
||
r.y = sibling->y;
|
||
r.width = sibling->width;
|
||
r.height = sibling->height;
|
||
|
||
child_region = cairo_region_create_rectangle (&r);
|
||
|
||
if (sibling->shape)
|
||
{
|
||
/* Adjust shape region to parent window coords */
|
||
cairo_region_translate (sibling->shape, sibling->x, sibling->y);
|
||
cairo_region_intersect (child_region, sibling->shape);
|
||
cairo_region_translate (sibling->shape, -sibling->x, -sibling->y);
|
||
}
|
||
|
||
cairo_region_subtract (region, child_region);
|
||
cairo_region_destroy (child_region);
|
||
}
|
||
|
||
remove_sibling_overlapped_area (parent, region);
|
||
|
||
/* Convert back to window coords */
|
||
cairo_region_translate (region, -window->x, -window->y);
|
||
}
|
||
|
||
static void
|
||
remove_child_area (GdkWindow *window,
|
||
gboolean for_input,
|
||
cairo_region_t *region)
|
||
{
|
||
GdkWindow *child;
|
||
cairo_region_t *child_region;
|
||
GdkRectangle r;
|
||
GList *l;
|
||
|
||
for (l = window->children; l; l = l->next)
|
||
{
|
||
child = l->data;
|
||
|
||
/* 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)
|
||
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);
|
||
}
|
||
|
||
if (for_input)
|
||
{
|
||
if (child->input_shape)
|
||
cairo_region_intersect (child_region, child->input_shape);
|
||
}
|
||
|
||
cairo_region_subtract (region, child_region);
|
||
cairo_region_destroy (child_region);
|
||
}
|
||
}
|
||
|
||
static gboolean
|
||
should_apply_clip_as_shape (GdkWindow *window)
|
||
{
|
||
return
|
||
gdk_window_has_impl (window) &&
|
||
/* Not for non-shaped toplevels */
|
||
(window->shape != NULL || window->applied_shape) &&
|
||
/* or for foreign windows */
|
||
window->window_type != GDK_WINDOW_FOREIGN &&
|
||
/* or for the root window */
|
||
window->window_type != GDK_WINDOW_ROOT;
|
||
}
|
||
|
||
static void
|
||
apply_shape (GdkWindow *window,
|
||
cairo_region_t *region)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
|
||
/* 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_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
if (region)
|
||
impl_class->shape_combine_region (window,
|
||
region, 0, 0);
|
||
else if (window->applied_shape)
|
||
impl_class->shape_combine_region (window,
|
||
NULL, 0, 0);
|
||
|
||
window->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 (GdkWindow *window)
|
||
{
|
||
GdkRectangle r;
|
||
cairo_region_t *region;
|
||
|
||
r.x = r.y = 0;
|
||
r.width = window->width;
|
||
r.height = window->height;
|
||
|
||
region = cairo_region_copy (window->clip_region);
|
||
remove_sibling_overlapped_area (window, region);
|
||
|
||
/* 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 (region, &r))
|
||
apply_shape (window, region);
|
||
else
|
||
apply_shape (window, NULL);
|
||
|
||
cairo_region_destroy (region);
|
||
}
|
||
|
||
static void
|
||
recompute_visible_regions_internal (GdkWindow *private,
|
||
gboolean recalculate_clip,
|
||
gboolean recalculate_children)
|
||
{
|
||
GdkRectangle r;
|
||
GList *l;
|
||
GdkWindow *child;
|
||
cairo_region_t *new_clip;
|
||
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) &&
|
||
private->window_type != GDK_WINDOW_SUBSURFACE) ||
|
||
(gdk_window_is_toplevel (private) &&
|
||
private->window_type == GDK_WINDOW_SUBSURFACE))
|
||
{
|
||
/* Native windows and toplevel subsurfaces start 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/position
|
||
*/
|
||
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);
|
||
|
||
/* Convert from parent coords to window coords */
|
||
cairo_region_translate (new_clip, -private->x, -private->y);
|
||
|
||
if (should_apply_clip_as_shape (private) && 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;
|
||
}
|
||
|
||
/* 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);
|
||
}
|
||
}
|
||
}
|
||
|
||
/* 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 (GdkWindow *private,
|
||
gboolean recalculate_children)
|
||
{
|
||
GdkWindow *toplevel;
|
||
|
||
toplevel = gdk_window_get_toplevel (private);
|
||
toplevel->geometry_dirty = TRUE;
|
||
|
||
recompute_visible_regions_internal (private,
|
||
TRUE,
|
||
recalculate_children);
|
||
}
|
||
|
||
static void
|
||
gdk_window_clear_old_updated_area (GdkWindow *window)
|
||
{
|
||
int i;
|
||
|
||
for (i = 0; i < 2; i++)
|
||
{
|
||
if (window->old_updated_area[i])
|
||
{
|
||
cairo_region_destroy (window->old_updated_area[i]);
|
||
window->old_updated_area[i] = NULL;
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
gdk_window_append_old_updated_area (GdkWindow *window,
|
||
cairo_region_t *region)
|
||
{
|
||
if (window->old_updated_area[1])
|
||
cairo_region_destroy (window->old_updated_area[1]);
|
||
window->old_updated_area[1] = window->old_updated_area[0];
|
||
window->old_updated_area[0] = cairo_region_reference (region);
|
||
}
|
||
|
||
void
|
||
_gdk_window_update_size (GdkWindow *window)
|
||
{
|
||
gdk_window_clear_old_updated_area (window);
|
||
recompute_visible_regions (window, FALSE);
|
||
}
|
||
|
||
static GdkEventMask
|
||
get_native_device_event_mask (GdkWindow *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 (private->window_type == GDK_WINDOW_ROOT ||
|
||
private->window_type == GDK_WINDOW_FOREIGN)
|
||
return event_mask;
|
||
else
|
||
{
|
||
GdkEventMask mask;
|
||
|
||
mask = private->event_mask;
|
||
|
||
/* We need thse for all native windows so we can
|
||
emulate events on children: */
|
||
mask |=
|
||
GDK_EXPOSURE_MASK |
|
||
GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK |
|
||
GDK_TOUCH_MASK |
|
||
GDK_POINTER_MOTION_MASK |
|
||
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
|
||
GDK_SCROLL_MASK;
|
||
|
||
return mask;
|
||
}
|
||
}
|
||
|
||
static GdkEventMask
|
||
get_native_event_mask (GdkWindow *private)
|
||
{
|
||
return get_native_device_event_mask (private, NULL);
|
||
}
|
||
|
||
GdkWindow*
|
||
gdk_window_new (GdkDisplay *display,
|
||
GdkWindow *parent,
|
||
GdkWindowAttr *attributes)
|
||
{
|
||
GdkWindow *window;
|
||
gboolean native;
|
||
GdkEventMask event_mask;
|
||
|
||
g_return_val_if_fail (attributes != NULL, NULL);
|
||
|
||
if (parent != NULL && GDK_WINDOW_DESTROYED (parent))
|
||
{
|
||
g_warning ("gdk_window_new(): parent is destroyed");
|
||
return NULL;
|
||
}
|
||
|
||
window = _gdk_display_create_window (display);
|
||
|
||
window->parent = parent;
|
||
|
||
window->accept_focus = TRUE;
|
||
window->focus_on_map = TRUE;
|
||
|
||
window->x = attributes->x;
|
||
window->y = attributes->y;
|
||
window->width = (attributes->width > 1) ? (attributes->width) : (1);
|
||
window->height = (attributes->height > 1) ? (attributes->height) : (1);
|
||
window->alpha = 255;
|
||
|
||
if (attributes->wclass == GDK_INPUT_ONLY)
|
||
{
|
||
/* Backwards compatiblity - we've always ignored
|
||
* attributes->window_type for input-only windows
|
||
* before
|
||
*/
|
||
if (parent == NULL)
|
||
window->window_type = GDK_WINDOW_TEMP;
|
||
else
|
||
window->window_type = GDK_WINDOW_CHILD;
|
||
}
|
||
else
|
||
window->window_type = attributes->window_type;
|
||
|
||
/* Sanity checks */
|
||
switch (window->window_type)
|
||
{
|
||
case GDK_WINDOW_TOPLEVEL:
|
||
case GDK_WINDOW_TEMP:
|
||
if (parent != NULL && GDK_WINDOW_TYPE (parent) != GDK_WINDOW_ROOT)
|
||
g_warning (G_STRLOC "Toplevel windows must be created as children of\n"
|
||
"a window of type GDK_WINDOW_ROOT");
|
||
break;
|
||
case GDK_WINDOW_SUBSURFACE:
|
||
#ifdef GDK_WINDOWING_WAYLAND
|
||
if (!GDK_IS_WAYLAND_DISPLAY (display))
|
||
{
|
||
g_warning (G_STRLOC "Subsurface windows can only be used on Wayland");
|
||
return NULL;
|
||
}
|
||
#endif
|
||
break;
|
||
case GDK_WINDOW_CHILD:
|
||
if (GDK_WINDOW_TYPE (parent) == GDK_WINDOW_ROOT ||
|
||
GDK_WINDOW_TYPE (parent) == GDK_WINDOW_FOREIGN)
|
||
{
|
||
g_warning (G_STRLOC "Child windows must not be created as children of\n"
|
||
"a window of type GDK_WINDOW_ROOT or GDK_WINDOW_FOREIGN");
|
||
return NULL;
|
||
}
|
||
break;
|
||
default:
|
||
g_warning (G_STRLOC "cannot make windows of type %d", window->window_type);
|
||
return NULL;
|
||
}
|
||
|
||
window->event_mask = GDK_ALL_EVENTS_MASK;
|
||
|
||
if (attributes->wclass == GDK_INPUT_OUTPUT)
|
||
{
|
||
window->input_only = FALSE;
|
||
}
|
||
else
|
||
{
|
||
window->input_only = TRUE;
|
||
}
|
||
|
||
native = FALSE;
|
||
|
||
if (window->parent != NULL)
|
||
window->parent->children = g_list_concat (&window->children_list_node, window->parent->children);
|
||
else
|
||
{
|
||
GdkFrameClock *frame_clock = g_object_new (GDK_TYPE_FRAME_CLOCK_IDLE, NULL);
|
||
gdk_window_set_frame_clock (window, frame_clock);
|
||
g_object_unref (frame_clock);
|
||
|
||
native = TRUE; /* Always use native windows for toplevels */
|
||
}
|
||
|
||
#ifdef GDK_WINDOWING_WAYLAND
|
||
if (window->window_type == GDK_WINDOW_SUBSURFACE)
|
||
native = TRUE; /* Always use native windows for subsurfaces as well */
|
||
#endif
|
||
|
||
if (native)
|
||
{
|
||
event_mask = get_native_event_mask (window);
|
||
|
||
/* Create the impl */
|
||
_gdk_display_create_window_impl (display, window, parent, event_mask, attributes);
|
||
window->impl_window = window;
|
||
}
|
||
else
|
||
{
|
||
window->impl_window = g_object_ref (window->parent->impl_window);
|
||
window->impl = g_object_ref (window->impl_window->impl);
|
||
}
|
||
|
||
recompute_visible_regions (window, FALSE);
|
||
|
||
g_signal_connect (display, "seat-removed", G_CALLBACK (seat_removed_cb), window);
|
||
|
||
return window;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_new_toplevel: (constructor)
|
||
* @display: the display to create the window on
|
||
* @width: width of new window
|
||
* @height: height of new window
|
||
*
|
||
* Creates a new toplevel window. The window will be managed by the window
|
||
* manager.
|
||
*
|
||
* Returns: (transfer full): the new #GdkWindow
|
||
**/
|
||
GdkWindow *
|
||
gdk_window_new_toplevel (GdkDisplay *display,
|
||
gint width,
|
||
gint height)
|
||
{
|
||
GdkWindowAttr attr;
|
||
|
||
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
|
||
|
||
attr.wclass = GDK_INPUT_OUTPUT;
|
||
attr.x = 0;
|
||
attr.y = 0;
|
||
attr.width = width;
|
||
attr.height = height;
|
||
attr.window_type = GDK_WINDOW_TOPLEVEL;
|
||
|
||
return gdk_window_new (display, NULL, &attr);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_new_popup: (constructor)
|
||
* @display: the display to create the window on
|
||
* @position: position of the window on screen
|
||
*
|
||
* Creates a new toplevel popup window. The window will bypass window
|
||
* management.
|
||
*
|
||
* Returns: (transfer full): the new #GdkWindow
|
||
**/
|
||
GdkWindow *
|
||
gdk_window_new_popup (GdkDisplay *display,
|
||
const GdkRectangle *position)
|
||
{
|
||
GdkWindowAttr attr;
|
||
|
||
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
|
||
g_return_val_if_fail (position != NULL, NULL);
|
||
|
||
attr.wclass = GDK_INPUT_OUTPUT;
|
||
attr.x = position->x;
|
||
attr.y = position->y;
|
||
attr.width = position->width;
|
||
attr.height = position->height;
|
||
attr.window_type = GDK_WINDOW_TEMP;
|
||
|
||
return gdk_window_new (display, NULL, &attr);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_new_temp: (constructor)
|
||
* @display: the display to create the window on
|
||
*
|
||
* Creates a new toplevel temporary window. The window will be
|
||
* situated off-screen and not handle output.
|
||
*
|
||
* You most likely do not want to use this function.
|
||
*
|
||
* Returns: (transfer full): the new #GdkWindow
|
||
**/
|
||
GdkWindow *
|
||
gdk_window_new_temp (GdkDisplay *display)
|
||
{
|
||
GdkWindowAttr attr;
|
||
|
||
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
|
||
|
||
attr.wclass = GDK_INPUT_ONLY;
|
||
attr.x = -100;
|
||
attr.y = -100;
|
||
attr.width = 10;
|
||
attr.height = 10;
|
||
attr.window_type = GDK_WINDOW_TEMP;
|
||
|
||
return gdk_window_new (display, NULL, &attr);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_new_child: (constructor)
|
||
* @parent: the parent window
|
||
* @position: placement of the window inside @parent
|
||
*
|
||
* Creates a new client-side child window.
|
||
*
|
||
* Returns: (transfer full): the new #GdkWindow
|
||
**/
|
||
GdkWindow *
|
||
gdk_window_new_child (GdkWindow *parent,
|
||
const GdkRectangle *position)
|
||
{
|
||
GdkWindowAttr attr;
|
||
|
||
g_return_val_if_fail (GDK_IS_WINDOW (parent), NULL);
|
||
|
||
attr.wclass = GDK_INPUT_OUTPUT;
|
||
attr.x = position->x;
|
||
attr.y = position->y;
|
||
attr.width = position->width;
|
||
attr.height = position->height;
|
||
attr.window_type = GDK_WINDOW_CHILD;
|
||
|
||
return gdk_window_new (gdk_window_get_display (parent), parent, &attr);
|
||
}
|
||
|
||
/**
|
||
* _gdk_event_filter_unref:
|
||
* @window: (allow-none): A #GdkWindow, or %NULL to be the global window
|
||
* @filter: A window filter
|
||
*
|
||
* Release a reference to @filter. Note this function may
|
||
* mutate the list storage, so you need to handle this
|
||
* if iterating over a list of filters.
|
||
*/
|
||
void
|
||
_gdk_event_filter_unref (GdkWindow *window,
|
||
GdkEventFilter *filter)
|
||
{
|
||
GList **filters;
|
||
GList *tmp_list;
|
||
|
||
if (window == NULL)
|
||
filters = &_gdk_default_filters;
|
||
else
|
||
filters = &window->filters;
|
||
|
||
tmp_list = *filters;
|
||
while (tmp_list)
|
||
{
|
||
GdkEventFilter *iter_filter = tmp_list->data;
|
||
GList *node;
|
||
|
||
node = tmp_list;
|
||
tmp_list = tmp_list->next;
|
||
|
||
if (iter_filter != filter)
|
||
continue;
|
||
|
||
g_assert (iter_filter->ref_count > 0);
|
||
|
||
filter->ref_count--;
|
||
if (filter->ref_count != 0)
|
||
continue;
|
||
|
||
*filters = g_list_remove_link (*filters, node);
|
||
g_free (filter);
|
||
g_list_free_1 (node);
|
||
}
|
||
}
|
||
|
||
static void
|
||
window_remove_filters (GdkWindow *window)
|
||
{
|
||
while (window->filters)
|
||
_gdk_event_filter_unref (window, window->filters->data);
|
||
}
|
||
|
||
static void
|
||
update_pointer_info_foreach (GdkDisplay *display,
|
||
GdkDevice *device,
|
||
GdkPointerWindowInfo *pointer_info,
|
||
gpointer user_data)
|
||
{
|
||
GdkWindow *window = user_data;
|
||
|
||
if (pointer_info->window_under_pointer == window)
|
||
{
|
||
g_object_unref (pointer_info->window_under_pointer);
|
||
pointer_info->window_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);
|
||
}
|
||
|
||
static void
|
||
gdk_window_free_current_paint (GdkWindow *window)
|
||
{
|
||
cairo_surface_destroy (window->current_paint.surface);
|
||
window->current_paint.surface = NULL;
|
||
|
||
cairo_region_destroy (window->current_paint.region);
|
||
window->current_paint.region = NULL;
|
||
|
||
window->current_paint.surface_needs_composite = FALSE;
|
||
}
|
||
|
||
/**
|
||
* _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)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
GdkWindow *temp_window;
|
||
GdkDisplay *display;
|
||
GList *tmp;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (GDK_WINDOW_DESTROYED (window))
|
||
return;
|
||
|
||
display = gdk_window_get_display (window);
|
||
|
||
switch (window->window_type)
|
||
{
|
||
default:
|
||
g_assert_not_reached ();
|
||
break;
|
||
|
||
case GDK_WINDOW_ROOT:
|
||
if (!gdk_display_is_closed (display))
|
||
{
|
||
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_SUBSURFACE:
|
||
if (window->window_type == GDK_WINDOW_FOREIGN && !foreign_destroy)
|
||
{
|
||
/* 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 (window->parent)
|
||
{
|
||
if (window->parent->children)
|
||
window->parent->children = g_list_remove_link (window->parent->children, &window->children_list_node);
|
||
|
||
if (!recursing &&
|
||
GDK_WINDOW_IS_MAPPED (window))
|
||
{
|
||
recompute_visible_regions (window, FALSE);
|
||
gdk_window_invalidate_in_parent (window);
|
||
}
|
||
}
|
||
|
||
if (window->gl_paint_context)
|
||
{
|
||
/* Make sure to destroy if current */
|
||
g_object_run_dispose (G_OBJECT (window->gl_paint_context));
|
||
g_object_unref (window->gl_paint_context);
|
||
window->gl_paint_context = NULL;
|
||
}
|
||
|
||
if (window->frame_clock)
|
||
{
|
||
g_object_run_dispose (G_OBJECT (window->frame_clock));
|
||
gdk_window_set_frame_clock (window, NULL);
|
||
}
|
||
|
||
gdk_window_free_current_paint (window);
|
||
|
||
if (window->window_type == GDK_WINDOW_FOREIGN)
|
||
g_assert (window->children == NULL);
|
||
else
|
||
{
|
||
tmp = window->children;
|
||
window->children = NULL;
|
||
/* No need to free children list, its all made up of in-struct nodes */
|
||
|
||
while (tmp)
|
||
{
|
||
temp_window = tmp->data;
|
||
tmp = tmp->next;
|
||
|
||
if (temp_window)
|
||
_gdk_window_destroy_hierarchy (temp_window,
|
||
TRUE,
|
||
recursing_native || gdk_window_has_impl (window),
|
||
foreign_destroy);
|
||
}
|
||
}
|
||
|
||
_gdk_window_clear_update_area (window);
|
||
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
|
||
if (gdk_window_has_impl (window))
|
||
impl_class->destroy (window, recursing_native, foreign_destroy);
|
||
else
|
||
{
|
||
/* hide to make sure we repaint and break grabs */
|
||
gdk_window_hide (window);
|
||
}
|
||
|
||
window->state |= GDK_WINDOW_STATE_WITHDRAWN;
|
||
window->parent = NULL;
|
||
window->destroyed = TRUE;
|
||
|
||
window_remove_filters (window);
|
||
|
||
window_remove_from_pointer_info (window, display);
|
||
|
||
if (window->clip_region)
|
||
{
|
||
cairo_region_destroy (window->clip_region);
|
||
window->clip_region = NULL;
|
||
}
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (window), properties[PROP_STATE]);
|
||
}
|
||
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: (allow-none) (type GObject.Object): 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));
|
||
|
||
window->user_data = user_data;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_user_data:
|
||
* @window: a #GdkWindow
|
||
* @data: (out): 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)
|
||
{
|
||
*data = window->user_data;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_window_type:
|
||
* @window: a #GdkWindow
|
||
*
|
||
* Gets the type of the window. See #GdkWindowType.
|
||
*
|
||
* Returns: 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_get_display:
|
||
* @window: a #GdkWindow
|
||
*
|
||
* Gets the #GdkDisplay associated with a #GdkWindow.
|
||
*
|
||
* Returns: (transfer none): the #GdkDisplay associated with @window
|
||
**/
|
||
GdkDisplay *
|
||
gdk_window_get_display (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
||
|
||
return window->display;
|
||
}
|
||
/**
|
||
* gdk_window_is_destroyed:
|
||
* @window: a #GdkWindow
|
||
*
|
||
* Check to see if a window is destroyed..
|
||
*
|
||
* Returns: %TRUE if the window is destroyed
|
||
**/
|
||
gboolean
|
||
gdk_window_is_destroyed (GdkWindow *window)
|
||
{
|
||
return GDK_WINDOW_DESTROYED (window);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_has_native:
|
||
* @window: a #GdkWindow
|
||
*
|
||
* Checks whether the window has a native window or not.
|
||
*
|
||
* Returns: %TRUE if the @window has a native window, %FALSE otherwise.
|
||
*/
|
||
gboolean
|
||
gdk_window_has_native (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
||
|
||
return window->parent == NULL || window->parent->impl != window->impl;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_position:
|
||
* @window: a #GdkWindow
|
||
* @x: (out) (allow-none): X coordinate of window
|
||
* @y: (out) (allow-none): 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)
|
||
{
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (x)
|
||
*x = window->x;
|
||
if (y)
|
||
*y = window->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.
|
||
*
|
||
* Returns: (transfer none): parent of @window
|
||
**/
|
||
GdkWindow*
|
||
gdk_window_get_parent (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
||
|
||
if (gdk_window_is_subsurface (window))
|
||
return window->transient_for;
|
||
else
|
||
return window->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.
|
||
*
|
||
* Returns: (transfer none): the toplevel window containing @window
|
||
**/
|
||
GdkWindow *
|
||
gdk_window_get_toplevel (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
||
|
||
while (window->window_type == GDK_WINDOW_CHILD ||
|
||
window->window_type == GDK_WINDOW_SUBSURFACE)
|
||
{
|
||
if (gdk_window_is_toplevel (window))
|
||
break;
|
||
window = 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.
|
||
*
|
||
* Returns: (transfer container) (element-type GdkWindow):
|
||
* 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 (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.
|
||
*
|
||
* Returns: (transfer none) (element-type GdkWindow):
|
||
* 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 window->children;
|
||
}
|
||
|
||
|
||
/**
|
||
* gdk_window_get_children_with_user_data:
|
||
* @window: a #GdkWindow
|
||
* @user_data: user data to look for
|
||
*
|
||
* Gets the list of children of @window known to GDK with a
|
||
* particular @user_data set on it.
|
||
*
|
||
* The returned list must be freed, but the elements in the
|
||
* list need not be.
|
||
*
|
||
* The list is returned in (relative) stacking order, i.e. the
|
||
* lowest window is first.
|
||
*
|
||
* Returns: (transfer container) (element-type GdkWindow):
|
||
* list of child windows inside @window
|
||
**/
|
||
GList *
|
||
gdk_window_get_children_with_user_data (GdkWindow *window,
|
||
gpointer user_data)
|
||
{
|
||
GdkWindow *child;
|
||
GList *res, *l;
|
||
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
||
|
||
if (GDK_WINDOW_DESTROYED (window))
|
||
return NULL;
|
||
|
||
res = NULL;
|
||
for (l = window->children; l != NULL; l = l->next)
|
||
{
|
||
child = l->data;
|
||
|
||
if (child->user_data == user_data)
|
||
res = g_list_prepend (res, child);
|
||
}
|
||
|
||
return res;
|
||
}
|
||
|
||
|
||
/**
|
||
* gdk_window_add_filter: (skip)
|
||
* @window: (allow-none): 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.
|
||
*
|
||
* If you are interested in X GenericEvents, bear in mind that
|
||
* XGetEventData() has been already called on the event, and
|
||
* XFreeEventData() must not be called within @function.
|
||
**/
|
||
void
|
||
gdk_window_add_filter (GdkWindow *window,
|
||
GdkFilterFunc function,
|
||
gpointer data)
|
||
{
|
||
GList *tmp_list;
|
||
GdkEventFilter *filter;
|
||
|
||
g_return_if_fail (window == NULL || GDK_IS_WINDOW (window));
|
||
|
||
if (window && 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_has_impl (window))
|
||
{
|
||
g_warning ("Filters only work on toplevel windows");
|
||
return;
|
||
}
|
||
|
||
if (window)
|
||
tmp_list = window->filters;
|
||
else
|
||
tmp_list = _gdk_default_filters;
|
||
|
||
while (tmp_list)
|
||
{
|
||
filter = (GdkEventFilter *)tmp_list->data;
|
||
if ((filter->function == function) && (filter->data == data))
|
||
{
|
||
filter->ref_count++;
|
||
return;
|
||
}
|
||
tmp_list = tmp_list->next;
|
||
}
|
||
|
||
filter = g_new (GdkEventFilter, 1);
|
||
filter->function = function;
|
||
filter->data = data;
|
||
filter->ref_count = 1;
|
||
filter->flags = 0;
|
||
|
||
if (window)
|
||
window->filters = g_list_append (window->filters, filter);
|
||
else
|
||
_gdk_default_filters = g_list_append (_gdk_default_filters, filter);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_remove_filter: (skip)
|
||
* @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)
|
||
{
|
||
GList *tmp_list;
|
||
GdkEventFilter *filter;
|
||
|
||
g_return_if_fail (window == NULL || GDK_IS_WINDOW (window));
|
||
|
||
if (window)
|
||
tmp_list = window->filters;
|
||
else
|
||
tmp_list = _gdk_default_filters;
|
||
|
||
while (tmp_list)
|
||
{
|
||
filter = (GdkEventFilter *)tmp_list->data;
|
||
tmp_list = tmp_list->next;
|
||
|
||
if ((filter->function == function) && (filter->data == data))
|
||
{
|
||
filter->flags |= GDK_EVENT_FILTER_REMOVED;
|
||
|
||
_gdk_event_filter_unref (window, filter);
|
||
|
||
return;
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gdk_window_is_visible:
|
||
* @window: a #GdkWindow
|
||
*
|
||
* Checks whether the window has been mapped (with gdk_window_show() or
|
||
* gdk_window_show_unraised()).
|
||
*
|
||
* Returns: %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.)
|
||
*
|
||
* Returns: %TRUE if the window is viewable
|
||
**/
|
||
gboolean
|
||
gdk_window_is_viewable (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
||
|
||
if (window->destroyed)
|
||
return FALSE;
|
||
|
||
return window->viewable;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_state:
|
||
* @window: a #GdkWindow
|
||
*
|
||
* Gets the bitwise OR of the currently active window state flags,
|
||
* from the #GdkWindowState enumeration.
|
||
*
|
||
* Returns: window state bitfield
|
||
**/
|
||
GdkWindowState
|
||
gdk_window_get_state (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
||
|
||
return window->state;
|
||
}
|
||
|
||
static cairo_content_t
|
||
gdk_window_get_content (GdkWindow *window)
|
||
{
|
||
cairo_surface_t *surface;
|
||
cairo_content_t content;
|
||
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
|
||
|
||
surface = gdk_window_ref_impl_surface (window);
|
||
content = cairo_surface_get_content (surface);
|
||
cairo_surface_destroy (surface);
|
||
|
||
return content;
|
||
}
|
||
|
||
static cairo_surface_t *
|
||
gdk_window_ref_impl_surface (GdkWindow *window)
|
||
{
|
||
return GDK_WINDOW_IMPL_GET_CLASS (window->impl)->ref_cairo_surface (gdk_window_get_impl_window (window));
|
||
}
|
||
|
||
GdkGLContext *
|
||
gdk_window_get_paint_gl_context (GdkWindow *window,
|
||
GError **error)
|
||
{
|
||
GError *internal_error = NULL;
|
||
|
||
if (GDK_DISPLAY_DEBUG_CHECK (window->display, GL_DISABLE))
|
||
{
|
||
g_set_error_literal (error, GDK_GL_ERROR,
|
||
GDK_GL_ERROR_NOT_AVAILABLE,
|
||
_("GL support disabled via GDK_DEBUG"));
|
||
return NULL;
|
||
}
|
||
|
||
if (window->impl_window->gl_paint_context == NULL)
|
||
{
|
||
GdkWindowImplClass *impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
|
||
if (impl_class->create_gl_context == NULL)
|
||
{
|
||
g_set_error_literal (error, GDK_GL_ERROR, GDK_GL_ERROR_NOT_AVAILABLE,
|
||
_("The current backend does not support OpenGL"));
|
||
return NULL;
|
||
}
|
||
|
||
window->impl_window->gl_paint_context =
|
||
impl_class->create_gl_context (window->impl_window,
|
||
TRUE,
|
||
NULL,
|
||
&internal_error);
|
||
}
|
||
|
||
if (internal_error != NULL)
|
||
{
|
||
g_propagate_error (error, internal_error);
|
||
g_clear_object (&(window->impl_window->gl_paint_context));
|
||
return NULL;
|
||
}
|
||
|
||
gdk_gl_context_realize (window->impl_window->gl_paint_context, &internal_error);
|
||
if (internal_error != NULL)
|
||
{
|
||
g_propagate_error (error, internal_error);
|
||
g_clear_object (&(window->impl_window->gl_paint_context));
|
||
return NULL;
|
||
}
|
||
|
||
return window->impl_window->gl_paint_context;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_create_gl_context:
|
||
* @window: a #GdkWindow
|
||
* @error: return location for an error
|
||
*
|
||
* Creates a new #GdkGLContext matching the
|
||
* framebuffer format to the visual of the #GdkWindow. The context
|
||
* is disconnected from any particular window or surface.
|
||
*
|
||
* If the creation of the #GdkGLContext failed, @error will be set.
|
||
*
|
||
* Before using the returned #GdkGLContext, you will need to
|
||
* call gdk_gl_context_make_current() or gdk_gl_context_realize().
|
||
*
|
||
* Returns: (transfer full): the newly created #GdkGLContext, or
|
||
* %NULL on error
|
||
**/
|
||
GdkGLContext *
|
||
gdk_window_create_gl_context (GdkWindow *window,
|
||
GError **error)
|
||
{
|
||
GdkGLContext *paint_context;
|
||
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
||
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
|
||
|
||
paint_context = gdk_window_get_paint_gl_context (window, error);
|
||
if (paint_context == NULL)
|
||
return NULL;
|
||
|
||
return GDK_WINDOW_IMPL_GET_CLASS (window->impl)->create_gl_context (window->impl_window,
|
||
FALSE,
|
||
paint_context,
|
||
error);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_create_vulkan_context:
|
||
* @window: a #GdkWindow
|
||
* @error: return location for an error
|
||
*
|
||
* Creates a new #GdkVulkanContext for rendering on @window.
|
||
*
|
||
* If the creation of the #GdkVulkanContext failed, @error will be set.
|
||
*
|
||
* Returns: (transfer full): the newly created #GdkVulkanContext, or
|
||
* %NULL on error
|
||
**/
|
||
GdkVulkanContext *
|
||
gdk_window_create_vulkan_context (GdkWindow *window,
|
||
GError **error)
|
||
{
|
||
GdkDisplay *display;
|
||
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
||
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
|
||
|
||
if (GDK_DISPLAY_DEBUG_CHECK (window->display, VULKAN_DISABLE))
|
||
{
|
||
g_set_error_literal (error, GDK_VULKAN_ERROR, GDK_VULKAN_ERROR_NOT_AVAILABLE,
|
||
_("Vulkan support disabled via GDK_DEBUG"));
|
||
return NULL;
|
||
}
|
||
|
||
display = gdk_window_get_display (window);
|
||
|
||
if (GDK_DISPLAY_GET_CLASS (display)->vk_extension_name == NULL)
|
||
{
|
||
g_set_error (error, GDK_VULKAN_ERROR, GDK_VULKAN_ERROR_UNSUPPORTED,
|
||
"The %s backend has no Vulkan support.", G_OBJECT_TYPE_NAME (display));
|
||
return FALSE;
|
||
}
|
||
|
||
return g_initable_new (GDK_DISPLAY_GET_CLASS (display)->vk_context_type,
|
||
NULL,
|
||
error,
|
||
"window", window,
|
||
NULL);
|
||
}
|
||
|
||
static void
|
||
gdk_window_begin_paint_internal (GdkWindow *window,
|
||
const cairo_region_t *region)
|
||
{
|
||
GdkRectangle clip_box;
|
||
GdkWindowImplClass *impl_class;
|
||
double sx, sy;
|
||
gboolean needs_surface;
|
||
cairo_content_t surface_content;
|
||
|
||
if (window->current_paint.surface != NULL)
|
||
{
|
||
g_warning ("A paint operation on the window is alredy in progress. "
|
||
"This is not allowed.");
|
||
return;
|
||
}
|
||
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
|
||
needs_surface = TRUE;
|
||
if (impl_class->begin_paint)
|
||
needs_surface = impl_class->begin_paint (window);
|
||
|
||
window->current_paint.region = cairo_region_copy (region);
|
||
cairo_region_intersect (window->current_paint.region, window->clip_region);
|
||
cairo_region_get_extents (window->current_paint.region, &clip_box);
|
||
|
||
surface_content = gdk_window_get_content (window);
|
||
|
||
if (needs_surface)
|
||
{
|
||
window->current_paint.surface = gdk_window_create_similar_surface (window,
|
||
surface_content,
|
||
MAX (clip_box.width, 1),
|
||
MAX (clip_box.height, 1));
|
||
sx = sy = 1;
|
||
cairo_surface_get_device_scale (window->current_paint.surface, &sx, &sy);
|
||
cairo_surface_set_device_offset (window->current_paint.surface, -clip_box.x*sx, -clip_box.y*sy);
|
||
gdk_cairo_surface_mark_as_direct (window->current_paint.surface, window);
|
||
|
||
window->current_paint.surface_needs_composite = TRUE;
|
||
}
|
||
else
|
||
{
|
||
window->current_paint.surface = gdk_window_ref_impl_surface (window);
|
||
window->current_paint.surface_needs_composite = FALSE;
|
||
}
|
||
|
||
if (!cairo_region_is_empty (window->current_paint.region))
|
||
gdk_window_clear_backing_region (window);
|
||
}
|
||
|
||
static void
|
||
gdk_window_end_paint_internal (GdkWindow *window)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
cairo_t *cr;
|
||
|
||
if (window->current_paint.surface == NULL)
|
||
{
|
||
g_warning (G_STRLOC": no preceding call to gdk_window_begin_draw_frame(), see documentation");
|
||
return;
|
||
}
|
||
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
|
||
if (impl_class->end_paint)
|
||
impl_class->end_paint (window);
|
||
|
||
if (window->current_paint.surface_needs_composite)
|
||
{
|
||
cairo_surface_t *surface;
|
||
|
||
surface = gdk_window_ref_impl_surface (window);
|
||
cr = cairo_create (surface);
|
||
|
||
cairo_set_source_surface (cr, window->current_paint.surface, 0, 0);
|
||
gdk_cairo_region (cr, window->current_paint.region);
|
||
cairo_clip (cr);
|
||
|
||
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
|
||
cairo_paint (cr);
|
||
|
||
cairo_destroy (cr);
|
||
|
||
cairo_surface_flush (surface);
|
||
cairo_surface_destroy (surface);
|
||
}
|
||
|
||
gdk_window_free_current_paint (window);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_begin_draw_frame:
|
||
* @window: a #GdkWindow
|
||
* @context: (allow-none): the context used to draw the frame
|
||
* @region: a Cairo region
|
||
*
|
||
* Indicates that you are beginning the process of redrawing @region
|
||
* on @window, and provides you with a #GdkDrawingContext.
|
||
*
|
||
* If @window is a top level #GdkWindow, backed by a native window
|
||
* implementation, 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 surface for @window. Then, all
|
||
* drawing operations performed on @window will be diverted to the
|
||
* backing store. When you call gdk_window_end_frame(), the contents of
|
||
* the backing store will be copied to @window, making it visible
|
||
* on screen. 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_draw_frame(). If you draw to @window directly without
|
||
* calling gdk_window_begin_draw_frame(), the user may see flicker
|
||
* as individual drawing operations are performed in sequence.
|
||
*
|
||
* When using GTK+, the widget system automatically places calls to
|
||
* gdk_window_begin_draw_frame() and gdk_window_end_draw_frame() around
|
||
* emissions of the `GtkWidget::draw` signal. That is, if you’re
|
||
* drawing the contents of the widget yourself, you can assume that the
|
||
* widget has a cleared background, is already set as the clip region,
|
||
* and already has a backing store. Therefore in most cases, application
|
||
* code in GTK does not need to call gdk_window_begin_draw_frame()
|
||
* explicitly.
|
||
*
|
||
* Returns: (transfer none): a #GdkDrawingContext context that should be
|
||
* used to draw the contents of the window; the returned context is owned
|
||
* by GDK.
|
||
*/
|
||
GdkDrawingContext *
|
||
gdk_window_begin_draw_frame (GdkWindow *window,
|
||
GdkDrawContext *draw_context,
|
||
const cairo_region_t *region)
|
||
{
|
||
GdkDrawingContext *context;
|
||
cairo_region_t *real_region;
|
||
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
||
g_return_val_if_fail (gdk_window_has_native (window), NULL);
|
||
g_return_val_if_fail (gdk_window_is_toplevel (window), NULL);
|
||
g_return_val_if_fail (region != NULL, NULL);
|
||
if (draw_context != NULL)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_DRAW_CONTEXT (draw_context), NULL);
|
||
g_return_val_if_fail (gdk_draw_context_get_window (draw_context) == window, NULL);
|
||
}
|
||
|
||
if (GDK_WINDOW_DESTROYED (window))
|
||
return NULL;
|
||
|
||
if (window->drawing_context != NULL)
|
||
{
|
||
g_critical ("The window %p already has a drawing context. You cannot "
|
||
"call gdk_window_begin_draw_frame() without calling "
|
||
"gdk_window_end_draw_frame() first.", window);
|
||
return NULL;
|
||
}
|
||
|
||
real_region = cairo_region_copy (region);
|
||
|
||
if (draw_context)
|
||
gdk_draw_context_begin_frame (draw_context, real_region);
|
||
else
|
||
gdk_window_begin_paint_internal (window, real_region);
|
||
|
||
context = g_object_new (GDK_TYPE_DRAWING_CONTEXT,
|
||
"window", window,
|
||
"paint-context", draw_context,
|
||
"clip", real_region,
|
||
NULL);
|
||
|
||
/* Do not take a reference, to avoid creating cycles */
|
||
window->drawing_context = context;
|
||
|
||
cairo_region_destroy (real_region);
|
||
|
||
return context;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_end_draw_frame:
|
||
* @window: a #GdkWindow
|
||
* @context: the #GdkDrawingContext created by gdk_window_begin_draw_frame()
|
||
*
|
||
* Indicates that the drawing of the contents of @window started with
|
||
* gdk_window_begin_frame() has been completed.
|
||
*
|
||
* This function will take care of destroying the #GdkDrawingContext.
|
||
*
|
||
* It is an error to call this function without a matching
|
||
* gdk_window_begin_frame() first.
|
||
*/
|
||
void
|
||
gdk_window_end_draw_frame (GdkWindow *window,
|
||
GdkDrawingContext *context)
|
||
{
|
||
GdkDrawContext *paint_context;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
g_return_if_fail (GDK_IS_DRAWING_CONTEXT (context));
|
||
|
||
if (GDK_WINDOW_DESTROYED (window))
|
||
return;
|
||
|
||
if (window->drawing_context == NULL)
|
||
{
|
||
g_critical ("The window %p has no drawing context. You must call "
|
||
"gdk_window_begin_draw_frame() before calling "
|
||
"gdk_window_end_draw_frame().", window);
|
||
return;
|
||
}
|
||
g_return_if_fail (window->drawing_context == context);
|
||
|
||
paint_context = gdk_drawing_context_get_paint_context (context);
|
||
if (paint_context)
|
||
{
|
||
cairo_region_t *clip = gdk_drawing_context_get_clip (context);
|
||
|
||
gdk_draw_context_end_frame (paint_context,
|
||
clip,
|
||
window->active_update_area);
|
||
|
||
cairo_region_destroy (clip);
|
||
}
|
||
else
|
||
{
|
||
gdk_window_end_paint_internal (window);
|
||
}
|
||
|
||
window->drawing_context = NULL;
|
||
|
||
g_object_unref (context);
|
||
}
|
||
|
||
/*< private >
|
||
* gdk_window_get_current_paint_region:
|
||
* @window: a #GdkWindow
|
||
*
|
||
* Retrieves a copy of the current paint region.
|
||
*
|
||
* Returns: (transfer full): a Cairo region
|
||
*/
|
||
cairo_region_t *
|
||
gdk_window_get_current_paint_region (GdkWindow *window)
|
||
{
|
||
cairo_region_t *region;
|
||
|
||
if (window->impl_window->current_paint.region != NULL)
|
||
{
|
||
region = cairo_region_copy (window->impl_window->current_paint.region);
|
||
cairo_region_translate (region, -window->abs_x, -window->abs_y);
|
||
}
|
||
else
|
||
{
|
||
region = cairo_region_copy (window->clip_region);
|
||
}
|
||
|
||
return region;
|
||
}
|
||
|
||
/*< private >
|
||
* gdk_window_get_drawing_context:
|
||
* @window: a #GdkWindow
|
||
*
|
||
* Retrieves the #GdkDrawingContext associated to @window by
|
||
* gdk_window_begin_draw_frame().
|
||
*
|
||
* Returns: (transfer none) (nullable): a #GdkDrawingContext, if any is set
|
||
*/
|
||
GdkDrawingContext *
|
||
gdk_window_get_drawing_context (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
||
|
||
if (GDK_WINDOW_DESTROYED (window))
|
||
return NULL;
|
||
|
||
return window->drawing_context;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_clip_region:
|
||
* @window: a #GdkWindow
|
||
*
|
||
* Computes the region of a window that potentially can be written
|
||
* to by drawing primitives. This region may not take into account
|
||
* other factors such as if the window is obscured by other windows,
|
||
* but no area outside of this region will be affected by drawing
|
||
* primitives.
|
||
*
|
||
* Returns: a #cairo_region_t. This must be freed with cairo_region_destroy()
|
||
* when you are done.
|
||
**/
|
||
cairo_region_t*
|
||
gdk_window_get_clip_region (GdkWindow *window)
|
||
{
|
||
cairo_region_t *result;
|
||
|
||
g_return_val_if_fail (GDK_WINDOW (window), NULL);
|
||
|
||
result = cairo_region_copy (window->clip_region);
|
||
|
||
if (window->current_paint.region != NULL)
|
||
cairo_region_intersect (result, window->current_paint.region);
|
||
|
||
return result;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_visible_region:
|
||
* @window: a #GdkWindow
|
||
*
|
||
* Computes the region of the @window that is potentially visible.
|
||
* This does not necessarily take into account if the window is
|
||
* obscured by other windows, but no area outside of this region
|
||
* is visible.
|
||
*
|
||
* Returns: a #cairo_region_t. This must be freed with cairo_region_destroy()
|
||
* when you are done.
|
||
**/
|
||
cairo_region_t *
|
||
gdk_window_get_visible_region (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
||
|
||
return cairo_region_copy (window->clip_region);
|
||
}
|
||
|
||
static void
|
||
gdk_window_clear_backing_region (GdkWindow *window)
|
||
{
|
||
cairo_t *cr;
|
||
|
||
if (GDK_WINDOW_DESTROYED (window))
|
||
return;
|
||
|
||
cr = cairo_create (window->current_paint.surface);
|
||
|
||
cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
|
||
gdk_cairo_region (cr, window->current_paint.region);
|
||
cairo_fill (cr);
|
||
|
||
cairo_destroy (cr);
|
||
}
|
||
|
||
/* This returns either the current working surface on the paint stack
|
||
* or the actual impl surface of the window. This should not be used
|
||
* from very many places: be careful! */
|
||
static cairo_surface_t *
|
||
ref_window_surface (GdkWindow *window)
|
||
{
|
||
if (window->impl_window->current_paint.surface)
|
||
return cairo_surface_reference (window->impl_window->current_paint.surface);
|
||
else
|
||
return gdk_window_ref_impl_surface (window);
|
||
}
|
||
|
||
/* This is used in places like gdk_cairo_set_source_window and
|
||
* other places to take "screenshots" of windows. Thus, we allow
|
||
* it to be used outside of a begin_paint / end_paint. */
|
||
cairo_surface_t *
|
||
_gdk_window_ref_cairo_surface (GdkWindow *window)
|
||
{
|
||
cairo_surface_t *surface;
|
||
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
||
|
||
surface = ref_window_surface (window);
|
||
|
||
if (gdk_window_has_impl (window))
|
||
{
|
||
return surface;
|
||
}
|
||
else
|
||
{
|
||
cairo_surface_t *subsurface;
|
||
subsurface = cairo_surface_create_for_rectangle (surface,
|
||
window->abs_x,
|
||
window->abs_y,
|
||
window->width,
|
||
window->height);
|
||
cairo_surface_destroy (surface);
|
||
return subsurface;
|
||
}
|
||
}
|
||
|
||
/* Code for dirty-region queueing
|
||
*/
|
||
static GSList *update_windows = NULL;
|
||
|
||
static inline gboolean
|
||
gdk_window_is_ancestor (GdkWindow *window,
|
||
GdkWindow *ancestor)
|
||
{
|
||
while (window)
|
||
{
|
||
GdkWindow *parent = 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;
|
||
|
||
/* Check whether "window" is already in "update_windows" list.
|
||
* It could be added during execution of gtk_widget_destroy() when
|
||
* setting focus widget to NULL and redrawing old focus widget.
|
||
* See bug 711552.
|
||
*/
|
||
tmp = g_slist_find (update_windows, window);
|
||
if (tmp != NULL)
|
||
return;
|
||
|
||
for (tmp = update_windows; tmp; tmp = tmp->next)
|
||
{
|
||
GdkWindow *parent = 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 (tmp->data)->parent)
|
||
{
|
||
if (parent != NULL)
|
||
{
|
||
gint index = g_list_index (parent->children, window);
|
||
for (; tmp && parent == GDK_WINDOW (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, g_object_ref (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, g_object_ref (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, g_object_ref (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, g_object_ref (window));
|
||
}
|
||
|
||
static void
|
||
gdk_window_remove_update_window (GdkWindow *window)
|
||
{
|
||
GSList *link;
|
||
|
||
link = g_slist_find (update_windows, window);
|
||
if (link != NULL)
|
||
{
|
||
update_windows = g_slist_delete_link (update_windows, link);
|
||
g_object_unref (window);
|
||
}
|
||
}
|
||
|
||
static gboolean
|
||
gdk_window_is_toplevel_frozen (GdkWindow *window)
|
||
{
|
||
GdkWindow *toplevel;
|
||
|
||
toplevel = gdk_window_get_toplevel (window);
|
||
|
||
return toplevel->update_and_descendants_freeze_count > 0;
|
||
}
|
||
|
||
static void
|
||
gdk_window_schedule_update (GdkWindow *window)
|
||
{
|
||
GdkFrameClock *frame_clock;
|
||
|
||
if (window &&
|
||
(window->update_freeze_count ||
|
||
gdk_window_is_toplevel_frozen (window)))
|
||
return;
|
||
|
||
/* If there's no frame clock (a foreign window), then the invalid
|
||
* region will just stick around unless gdk_window_process_updates()
|
||
* is called. */
|
||
frame_clock = gdk_window_get_frame_clock (window);
|
||
if (frame_clock)
|
||
gdk_frame_clock_request_phase (gdk_window_get_frame_clock (window),
|
||
GDK_FRAME_CLOCK_PHASE_PAINT);
|
||
}
|
||
|
||
void
|
||
_gdk_window_process_updates_recurse (GdkWindow *window,
|
||
cairo_region_t *expose_region)
|
||
{
|
||
cairo_region_t *clipped_expose_region;
|
||
GdkEvent *event;
|
||
|
||
if (window->destroyed)
|
||
return;
|
||
|
||
clipped_expose_region = cairo_region_copy (expose_region);
|
||
|
||
cairo_region_intersect (clipped_expose_region, window->clip_region);
|
||
|
||
if (cairo_region_is_empty (clipped_expose_region))
|
||
goto out;
|
||
|
||
/* Paint the window before the children, clipped to the window region */
|
||
|
||
event = gdk_event_new (GDK_EXPOSE);
|
||
event->any.window = g_object_ref (window);
|
||
event->any.send_event = FALSE;
|
||
event->expose.count = 0;
|
||
event->expose.region = cairo_region_reference (clipped_expose_region);
|
||
cairo_region_get_extents (clipped_expose_region, &event->expose.area);
|
||
|
||
_gdk_event_emit (event);
|
||
gdk_event_free (event);
|
||
|
||
out:
|
||
cairo_region_destroy (clipped_expose_region);
|
||
}
|
||
|
||
|
||
static void
|
||
gdk_window_update_native_shapes (GdkWindow *window)
|
||
{
|
||
if (should_apply_clip_as_shape (window))
|
||
apply_clip_as_shape (window);
|
||
}
|
||
|
||
/* Process and remove any invalid area on the native window by creating
|
||
* expose events for the window and all non-native descendants.
|
||
*/
|
||
static void
|
||
gdk_window_process_updates_internal (GdkWindow *window)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
GdkWindow *toplevel;
|
||
|
||
toplevel = gdk_window_get_toplevel (window);
|
||
if (toplevel->geometry_dirty)
|
||
{
|
||
gdk_window_update_native_shapes (toplevel);
|
||
toplevel->geometry_dirty = FALSE;
|
||
}
|
||
|
||
/* Ensure the window lives while updating it */
|
||
g_object_ref (window);
|
||
|
||
window->in_update = TRUE;
|
||
|
||
/* 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 (window->update_area)
|
||
{
|
||
g_assert (window->active_update_area == NULL); /* No reentrancy */
|
||
|
||
window->active_update_area = window->update_area;
|
||
window->update_area = NULL;
|
||
|
||
if (gdk_window_is_viewable (window))
|
||
{
|
||
cairo_region_t *expose_region;
|
||
|
||
expose_region = cairo_region_copy (window->active_update_area);
|
||
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
|
||
/* Clip to part visible in impl window */
|
||
cairo_region_intersect (expose_region, window->clip_region);
|
||
|
||
if (impl_class->queue_antiexpose)
|
||
impl_class->queue_antiexpose (window, expose_region);
|
||
|
||
impl_class->process_updates_recurse (window, expose_region);
|
||
|
||
gdk_window_append_old_updated_area (window, window->active_update_area);
|
||
|
||
cairo_region_destroy (expose_region);
|
||
}
|
||
|
||
cairo_region_destroy (window->active_update_area);
|
||
window->active_update_area = NULL;
|
||
}
|
||
|
||
window->in_update = FALSE;
|
||
|
||
g_object_unref (window);
|
||
}
|
||
|
||
static void
|
||
gdk_window_paint_on_clock (GdkFrameClock *clock,
|
||
void *data)
|
||
{
|
||
GdkWindow *window;
|
||
|
||
window = GDK_WINDOW (data);
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
g_return_if_fail (window->impl_window == window);
|
||
|
||
if (GDK_WINDOW_DESTROYED (window))
|
||
return;
|
||
|
||
g_object_ref (window);
|
||
|
||
if (window->update_area &&
|
||
!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. */
|
||
!window->in_update)
|
||
{
|
||
gdk_window_process_updates_internal (window);
|
||
gdk_window_remove_update_window (window);
|
||
}
|
||
|
||
g_object_unref (window);
|
||
}
|
||
|
||
static void
|
||
gdk_window_invalidate_rect_full (GdkWindow *window,
|
||
const GdkRectangle *rect,
|
||
gboolean invalidate_children)
|
||
{
|
||
GdkRectangle window_rect;
|
||
cairo_region_t *region;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (GDK_WINDOW_DESTROYED (window))
|
||
return;
|
||
|
||
if (window->input_only || !window->viewable)
|
||
return;
|
||
|
||
if (!rect)
|
||
{
|
||
window_rect.x = 0;
|
||
window_rect.y = 0;
|
||
window_rect.width = window->width;
|
||
window_rect.height = window->height;
|
||
rect = &window_rect;
|
||
}
|
||
|
||
region = cairo_region_create_rectangle (rect);
|
||
gdk_window_invalidate_region_full (window, region, invalidate_children);
|
||
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);
|
||
}
|
||
|
||
static void
|
||
impl_window_add_update_area (GdkWindow *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 (impl_window);
|
||
impl_window->update_area = cairo_region_copy (region);
|
||
gdk_window_schedule_update (impl_window);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gdk_window_invalidate_maybe_recurse_full (GdkWindow *window,
|
||
const cairo_region_t *region,
|
||
GdkWindowChildFunc child_func,
|
||
gpointer user_data)
|
||
{
|
||
cairo_region_t *visible_region;
|
||
cairo_rectangle_int_t r;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (GDK_WINDOW_DESTROYED (window))
|
||
return;
|
||
|
||
if (window->input_only ||
|
||
!window->viewable ||
|
||
cairo_region_is_empty (region) ||
|
||
window->window_type == GDK_WINDOW_ROOT)
|
||
return;
|
||
|
||
r.x = 0;
|
||
r.y = 0;
|
||
|
||
visible_region = cairo_region_copy (region);
|
||
|
||
while (window != NULL &&
|
||
!cairo_region_is_empty (visible_region))
|
||
{
|
||
r.width = window->width;
|
||
r.height = window->height;
|
||
cairo_region_intersect_rectangle (visible_region, &r);
|
||
|
||
if (gdk_window_has_impl (window))
|
||
{
|
||
impl_window_add_update_area (window, visible_region);
|
||
break;
|
||
}
|
||
else
|
||
{
|
||
cairo_region_translate (visible_region,
|
||
window->x, window->y);
|
||
window = window->parent;
|
||
}
|
||
}
|
||
|
||
cairo_region_destroy (visible_region);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_invalidate_maybe_recurse:
|
||
* @window: a #GdkWindow
|
||
* @region: a #cairo_region_t
|
||
* @child_func: (scope call) (allow-none): 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.”
|
||
*
|
||
* GDK will process all updates whenever the frame clock schedules a redraw,
|
||
* so there’s no need to do forces redraws 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,
|
||
GdkWindowChildFunc child_func,
|
||
gpointer user_data)
|
||
{
|
||
gdk_window_invalidate_maybe_recurse_full (window, region,
|
||
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)
|
||
{
|
||
gdk_window_invalidate_maybe_recurse_full (window, region,
|
||
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.”
|
||
*
|
||
* GDK will process all updates whenever the frame clock schedules a redraw,
|
||
* so there’s no need to do forces redraws 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.
|
||
*
|
||
* GDK will process all updates whenever the frame clock schedules a redraw,
|
||
* so there’s no need to do forces redraws 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.
|
||
**/
|
||
void
|
||
_gdk_window_invalidate_for_expose (GdkWindow *window,
|
||
cairo_region_t *region)
|
||
{
|
||
gdk_window_invalidate_maybe_recurse_full (window, region,
|
||
(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.
|
||
*
|
||
* Returns: the update area for @window
|
||
**/
|
||
cairo_region_t *
|
||
gdk_window_get_update_area (GdkWindow *window)
|
||
{
|
||
GdkWindow *impl_window;
|
||
cairo_region_t *tmp_region, *to_remove;
|
||
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
||
|
||
impl_window = gdk_window_get_impl_window (window);
|
||
|
||
if (impl_window->update_area)
|
||
{
|
||
tmp_region = cairo_region_copy (window->clip_region);
|
||
/* Convert to impl coords */
|
||
cairo_region_translate (tmp_region, window->abs_x, window->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
|
||
{
|
||
/* Convert from impl coords */
|
||
cairo_region_translate (tmp_region, -window->abs_x, -window->abs_y);
|
||
|
||
/* Don't remove any update area that is overlapped by sibling windows
|
||
or child windows as these really need to be repainted independently of this window. */
|
||
to_remove = cairo_region_copy (tmp_region);
|
||
|
||
remove_child_area (window, FALSE, to_remove);
|
||
remove_sibling_overlapped_area (window, to_remove);
|
||
|
||
/* Remove from update_area */
|
||
cairo_region_translate (to_remove, window->abs_x, window->abs_y);
|
||
cairo_region_subtract (impl_window->update_area, to_remove);
|
||
|
||
cairo_region_destroy (to_remove);
|
||
|
||
if (cairo_region_is_empty (impl_window->update_area))
|
||
{
|
||
cairo_region_destroy (impl_window->update_area);
|
||
impl_window->update_area = NULL;
|
||
|
||
gdk_window_remove_update_window ((GdkWindow *)impl_window);
|
||
}
|
||
|
||
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)
|
||
{
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (window->update_area)
|
||
{
|
||
gdk_window_remove_update_window (window);
|
||
|
||
cairo_region_destroy (window->update_area);
|
||
window->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)
|
||
{
|
||
GdkWindow *impl_window;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
impl_window = gdk_window_get_impl_window (window);
|
||
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)
|
||
{
|
||
GdkWindow *impl_window;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
impl_window = gdk_window_get_impl_window (window);
|
||
|
||
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));
|
||
}
|
||
|
||
void
|
||
gdk_window_freeze_toplevel_updates (GdkWindow *window)
|
||
{
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
g_return_if_fail (window->window_type != GDK_WINDOW_CHILD);
|
||
|
||
window->update_and_descendants_freeze_count++;
|
||
_gdk_frame_clock_freeze (gdk_window_get_frame_clock (window));
|
||
}
|
||
|
||
void
|
||
gdk_window_thaw_toplevel_updates (GdkWindow *window)
|
||
{
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
g_return_if_fail (window->window_type != GDK_WINDOW_CHILD);
|
||
g_return_if_fail (window->update_and_descendants_freeze_count > 0);
|
||
|
||
window->update_and_descendants_freeze_count--;
|
||
_gdk_frame_clock_thaw (gdk_window_get_frame_clock (window));
|
||
|
||
gdk_window_schedule_update (window);
|
||
}
|
||
|
||
/**
|
||
* 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: (out): location to store resulting width
|
||
* @new_height: (out): 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,
|
||
GdkWindowHints 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_device_position_double:
|
||
* @window: a #GdkWindow.
|
||
* @device: pointer #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 in doubles and modifier state.
|
||
* The position is given in coordinates relative to the upper left
|
||
* corner of @window.
|
||
*
|
||
* Returns: (nullable) (transfer none): The window underneath @device
|
||
* (as with gdk_device_get_window_at_position()), or %NULL if the
|
||
* window is not known to GDK.
|
||
**/
|
||
GdkWindow *
|
||
gdk_window_get_device_position_double (GdkWindow *window,
|
||
GdkDevice *device,
|
||
double *x,
|
||
double *y,
|
||
GdkModifierType *mask)
|
||
{
|
||
gdouble tmp_x, tmp_y;
|
||
GdkModifierType tmp_mask;
|
||
gboolean normal_child;
|
||
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
||
g_return_val_if_fail (GDK_IS_DEVICE (device), NULL);
|
||
g_return_val_if_fail (gdk_device_get_source (device) != GDK_SOURCE_KEYBOARD, NULL);
|
||
|
||
tmp_x = tmp_y = 0;
|
||
tmp_mask = 0;
|
||
normal_child = GDK_WINDOW_IMPL_GET_CLASS (window->impl)->get_device_state (window,
|
||
device,
|
||
&tmp_x, &tmp_y,
|
||
&tmp_mask);
|
||
/* We got the coords on the impl, convert to the window */
|
||
tmp_x -= window->abs_x;
|
||
tmp_y -= window->abs_y;
|
||
|
||
if (x)
|
||
*x = tmp_x;
|
||
if (y)
|
||
*y = tmp_y;
|
||
if (mask)
|
||
*mask = tmp_mask;
|
||
|
||
if (normal_child)
|
||
return _gdk_window_find_child_at (window, tmp_x, tmp_y);
|
||
return NULL;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_device_position:
|
||
* @window: a #GdkWindow.
|
||
* @device: pointer #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.
|
||
*
|
||
* Use gdk_window_get_device_position_double() if you need subpixel precision.
|
||
*
|
||
* Returns: (nullable) (transfer none): The window underneath @device
|
||
* (as with gdk_device_get_window_at_position()), or %NULL if the
|
||
* window is not known to GDK.
|
||
**/
|
||
GdkWindow *
|
||
gdk_window_get_device_position (GdkWindow *window,
|
||
GdkDevice *device,
|
||
gint *x,
|
||
gint *y,
|
||
GdkModifierType *mask)
|
||
{
|
||
gdouble tmp_x, tmp_y;
|
||
|
||
window = gdk_window_get_device_position_double (window, device,
|
||
&tmp_x, &tmp_y, mask);
|
||
if (x)
|
||
*x = round (tmp_x);
|
||
if (y)
|
||
*y = round (tmp_y);
|
||
|
||
return window;
|
||
}
|
||
|
||
static gboolean
|
||
gdk_window_raise_internal (GdkWindow *window)
|
||
{
|
||
GdkWindow *parent = window->parent;
|
||
GdkWindowImplClass *impl_class;
|
||
gboolean did_raise = FALSE;
|
||
|
||
if (parent && parent->children->data != window)
|
||
{
|
||
parent->children = g_list_remove_link (parent->children, &window->children_list_node);
|
||
parent->children = g_list_concat (&window->children_list_node, parent->children);
|
||
did_raise = TRUE;
|
||
}
|
||
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
|
||
/* Just do native raise for toplevels */
|
||
if (gdk_window_has_impl (window))
|
||
impl_class->raise (window);
|
||
|
||
return did_raise;
|
||
}
|
||
|
||
/* Returns TRUE If the native window was mapped or unmapped */
|
||
static gboolean
|
||
set_viewable (GdkWindow *w,
|
||
gboolean val)
|
||
{
|
||
GdkWindow *child;
|
||
GList *l;
|
||
|
||
if (w->viewable == val)
|
||
return FALSE;
|
||
|
||
w->viewable = val;
|
||
|
||
if (val)
|
||
recompute_visible_regions (w, FALSE);
|
||
|
||
for (l = w->children; l != NULL; l = l->next)
|
||
{
|
||
child = l->data;
|
||
|
||
if (GDK_WINDOW_IS_MAPPED (child))
|
||
set_viewable (child, val);
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
/* Returns TRUE If the native window was mapped or unmapped */
|
||
gboolean
|
||
_gdk_window_update_viewable (GdkWindow *window)
|
||
{
|
||
gboolean viewable;
|
||
|
||
if (window->window_type == GDK_WINDOW_FOREIGN ||
|
||
window->window_type == GDK_WINDOW_ROOT)
|
||
viewable = TRUE;
|
||
else if (gdk_window_is_toplevel (window) ||
|
||
window->parent->viewable)
|
||
viewable = GDK_WINDOW_IS_MAPPED (window);
|
||
else
|
||
viewable = FALSE;
|
||
|
||
return set_viewable (window, viewable);
|
||
}
|
||
|
||
static void
|
||
gdk_window_show_internal (GdkWindow *window, gboolean raise)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
gboolean was_mapped, was_viewable;
|
||
gboolean did_show, did_raise = FALSE;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (window->destroyed)
|
||
return;
|
||
|
||
was_mapped = GDK_WINDOW_IS_MAPPED (window);
|
||
was_viewable = window->viewable;
|
||
|
||
if (raise)
|
||
{
|
||
/* Keep children in (reverse) stacking order */
|
||
did_raise = gdk_window_raise_internal (window);
|
||
}
|
||
|
||
if (gdk_window_has_impl (window))
|
||
{
|
||
if (!was_mapped)
|
||
gdk_synthesize_window_state (window,
|
||
GDK_WINDOW_STATE_WITHDRAWN,
|
||
0);
|
||
}
|
||
else
|
||
{
|
||
window->state = 0;
|
||
g_object_notify_by_pspec (G_OBJECT (window), properties[PROP_STATE]);
|
||
}
|
||
|
||
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 (window) && (was_viewable || !did_show))
|
||
{
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
impl_class->show (window, !did_show ? was_mapped : TRUE);
|
||
}
|
||
|
||
if (!was_mapped && !gdk_window_has_impl (window))
|
||
{
|
||
if (window->event_mask & GDK_STRUCTURE_MASK)
|
||
_gdk_make_event (window, GDK_MAP, NULL, FALSE);
|
||
|
||
if (window->parent && window->parent->event_mask & GDK_SUBSTRUCTURE_MASK)
|
||
_gdk_make_event (window, GDK_MAP, NULL, FALSE);
|
||
}
|
||
|
||
if (!was_mapped || did_raise)
|
||
{
|
||
recompute_visible_regions (window, FALSE);
|
||
|
||
if (gdk_window_is_viewable (window))
|
||
gdk_window_invalidate_rect_full (window, NULL, TRUE);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 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)
|
||
{
|
||
gboolean did_raise;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (window->destroyed)
|
||
return;
|
||
|
||
/* Keep children in (reverse) stacking order */
|
||
did_raise = gdk_window_raise_internal (window);
|
||
|
||
if (did_raise &&
|
||
!gdk_window_is_toplevel (window) &&
|
||
gdk_window_is_viewable (window) &&
|
||
!window->input_only)
|
||
gdk_window_invalidate_region_full (window, window->clip_region, TRUE);
|
||
}
|
||
|
||
static void
|
||
gdk_window_lower_internal (GdkWindow *window)
|
||
{
|
||
GdkWindow *parent = window->parent;
|
||
GdkWindowImplClass *impl_class;
|
||
|
||
if (parent)
|
||
{
|
||
parent->children = g_list_remove_link (parent->children, &window->children_list_node);
|
||
parent->children = g_list_concat (parent->children, &window->children_list_node);
|
||
}
|
||
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
|
||
/* Just do native lower for toplevels */
|
||
if (gdk_window_has_impl (window))
|
||
impl_class->lower (window);
|
||
}
|
||
|
||
static void
|
||
gdk_window_invalidate_in_parent (GdkWindow *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 (private->parent, &r, TRUE);
|
||
}
|
||
|
||
|
||
/**
|
||
* 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)
|
||
{
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (window->destroyed)
|
||
return;
|
||
|
||
/* Keep children in (reverse) stacking order */
|
||
gdk_window_lower_internal (window);
|
||
|
||
gdk_window_invalidate_in_parent (window);
|
||
}
|
||
|
||
/**
|
||
* 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.
|
||
*/
|
||
void
|
||
gdk_window_restack (GdkWindow *window,
|
||
GdkWindow *sibling,
|
||
gboolean above)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
GdkWindow *parent;
|
||
GList *sibling_link;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
g_return_if_fail (sibling == NULL || GDK_IS_WINDOW (sibling));
|
||
|
||
if (window->destroyed)
|
||
return;
|
||
|
||
if (sibling == NULL)
|
||
{
|
||
if (above)
|
||
gdk_window_raise (window);
|
||
else
|
||
gdk_window_lower (window);
|
||
return;
|
||
}
|
||
|
||
if (gdk_window_is_toplevel (window))
|
||
{
|
||
g_return_if_fail (gdk_window_is_toplevel (sibling));
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
impl_class->restack_toplevel (window, sibling, above);
|
||
return;
|
||
}
|
||
|
||
parent = window->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_link (parent->children, &window->children_list_node);
|
||
if (above)
|
||
parent->children = list_insert_link_before (parent->children,
|
||
sibling_link,
|
||
&window->children_list_node);
|
||
else
|
||
parent->children = list_insert_link_before (parent->children,
|
||
sibling_link->next,
|
||
&window->children_list_node);
|
||
}
|
||
|
||
gdk_window_invalidate_in_parent (window);
|
||
}
|
||
|
||
|
||
/**
|
||
* 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)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
gboolean was_mapped, did_hide;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (window->destroyed)
|
||
return;
|
||
|
||
was_mapped = GDK_WINDOW_IS_MAPPED (window);
|
||
|
||
if (gdk_window_has_impl (window))
|
||
{
|
||
|
||
if (GDK_WINDOW_IS_MAPPED (window))
|
||
gdk_synthesize_window_state (window,
|
||
0,
|
||
GDK_WINDOW_STATE_WITHDRAWN);
|
||
}
|
||
else if (was_mapped)
|
||
{
|
||
window->state = GDK_WINDOW_STATE_WITHDRAWN;
|
||
g_object_notify_by_pspec (G_OBJECT (window), properties[PROP_STATE]);
|
||
}
|
||
|
||
if (was_mapped)
|
||
{
|
||
GdkDisplay *display;
|
||
GdkSeat *seat;
|
||
GList *devices, *d;
|
||
|
||
/* May need to break grabs on children */
|
||
display = gdk_window_get_display (window);
|
||
seat = gdk_display_get_default_seat (display);
|
||
|
||
devices = gdk_seat_get_slaves (seat, GDK_SEAT_CAPABILITY_ALL);
|
||
devices = g_list_prepend (devices, gdk_seat_get_keyboard (seat));
|
||
devices = g_list_prepend (devices, gdk_seat_get_pointer (seat));
|
||
|
||
for (d = devices; d; d = d->next)
|
||
{
|
||
GdkDevice *device = d->data;
|
||
|
||
if (_gdk_display_end_device_grab (display,
|
||
device,
|
||
_gdk_display_get_next_serial (display),
|
||
window,
|
||
TRUE))
|
||
{
|
||
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
|
||
gdk_device_ungrab (device, GDK_CURRENT_TIME);
|
||
G_GNUC_END_IGNORE_DEPRECATIONS
|
||
}
|
||
}
|
||
|
||
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 (window) && (!did_hide))
|
||
{
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
impl_class->hide (window);
|
||
}
|
||
|
||
gdk_window_clear_old_updated_area (window);
|
||
recompute_visible_regions (window, FALSE);
|
||
|
||
if (was_mapped && !gdk_window_has_impl (window))
|
||
{
|
||
if (window->event_mask & GDK_STRUCTURE_MASK)
|
||
_gdk_make_event (window, GDK_UNMAP, NULL, FALSE);
|
||
|
||
if (window->parent && window->parent->event_mask & GDK_SUBSTRUCTURE_MASK)
|
||
_gdk_make_event (window, GDK_UNMAP, NULL, FALSE);
|
||
}
|
||
|
||
/* Invalidate the rect */
|
||
if (was_mapped)
|
||
gdk_window_invalidate_in_parent (window);
|
||
}
|
||
|
||
/**
|
||
* 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)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
gboolean was_mapped;
|
||
GdkGLContext *current_context;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (window->destroyed)
|
||
return;
|
||
|
||
was_mapped = GDK_WINDOW_IS_MAPPED (window);
|
||
|
||
if (gdk_window_has_impl (window))
|
||
{
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
impl_class->withdraw (window);
|
||
|
||
if (was_mapped)
|
||
{
|
||
if (window->event_mask & GDK_STRUCTURE_MASK)
|
||
_gdk_make_event (window, GDK_UNMAP, NULL, FALSE);
|
||
|
||
if (window->parent && window->parent->event_mask & GDK_SUBSTRUCTURE_MASK)
|
||
_gdk_make_event (window, GDK_UNMAP, NULL, FALSE);
|
||
}
|
||
|
||
current_context = gdk_gl_context_get_current ();
|
||
if (current_context != NULL && gdk_gl_context_get_window (current_context) == window)
|
||
gdk_gl_context_clear_current ();
|
||
|
||
recompute_visible_regions (window, FALSE);
|
||
gdk_window_clear_old_updated_area (window);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 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.
|
||
*
|
||
* See the [input handling overview][event-masks] for details.
|
||
**/
|
||
void
|
||
gdk_window_set_events (GdkWindow *window,
|
||
GdkEventMask event_mask)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (window->destroyed)
|
||
return;
|
||
|
||
window->event_mask = event_mask;
|
||
|
||
if (gdk_window_has_impl (window))
|
||
{
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
impl_class->set_events (window,
|
||
get_native_event_mask (window));
|
||
}
|
||
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_events:
|
||
* @window: a #GdkWindow
|
||
*
|
||
* Gets the event mask for @window for all master input devices. See
|
||
* gdk_window_set_events().
|
||
*
|
||
* Returns: event mask for @window
|
||
**/
|
||
GdkEventMask
|
||
gdk_window_get_events (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
|
||
|
||
if (window->destroyed)
|
||
return 0;
|
||
|
||
return window->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.
|
||
*
|
||
* See the [input handling overview][event-masks] for details.
|
||
**/
|
||
void
|
||
gdk_window_set_device_events (GdkWindow *window,
|
||
GdkDevice *device,
|
||
GdkEventMask event_mask)
|
||
{
|
||
GdkEventMask device_mask;
|
||
GdkWindow *native;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
g_return_if_fail (GDK_IS_DEVICE (device));
|
||
|
||
if (GDK_WINDOW_DESTROYED (window))
|
||
return;
|
||
|
||
if (G_UNLIKELY (!window->device_events))
|
||
window->device_events = g_hash_table_new (NULL, NULL);
|
||
|
||
if (event_mask == 0)
|
||
{
|
||
/* FIXME: unsetting events on a master device
|
||
* would restore window->event_mask
|
||
*/
|
||
g_hash_table_remove (window->device_events, device);
|
||
}
|
||
else
|
||
g_hash_table_insert (window->device_events, device,
|
||
GINT_TO_POINTER (event_mask));
|
||
|
||
native = gdk_window_get_toplevel (window);
|
||
|
||
device_mask = get_native_device_event_mask (window, 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
|
||
**/
|
||
GdkEventMask
|
||
gdk_window_get_device_events (GdkWindow *window,
|
||
GdkDevice *device)
|
||
{
|
||
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;
|
||
|
||
if (!window->device_events)
|
||
return 0;
|
||
|
||
mask = GPOINTER_TO_INT (g_hash_table_lookup (window->device_events, device));
|
||
|
||
/* FIXME: device could be controlled by window->event_mask */
|
||
|
||
return mask;
|
||
}
|
||
|
||
static void
|
||
gdk_window_move_resize_toplevel (GdkWindow *window,
|
||
gboolean with_move,
|
||
gint x,
|
||
gint y,
|
||
gint width,
|
||
gint height)
|
||
{
|
||
cairo_region_t *old_region, *new_region;
|
||
GdkWindowImplClass *impl_class;
|
||
gboolean expose;
|
||
gboolean is_resize;
|
||
|
||
expose = FALSE;
|
||
old_region = NULL;
|
||
|
||
is_resize = (width != -1) || (height != -1);
|
||
|
||
if (gdk_window_is_viewable (window) &&
|
||
!window->input_only)
|
||
{
|
||
expose = TRUE;
|
||
old_region = cairo_region_copy (window->clip_region);
|
||
}
|
||
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
impl_class->move_resize (window, with_move, x, y, width, height);
|
||
|
||
/* Avoid recomputing for pure toplevel moves, for performance reasons */
|
||
if (is_resize)
|
||
recompute_visible_regions (window, FALSE);
|
||
|
||
if (expose)
|
||
{
|
||
new_region = cairo_region_copy (window->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);
|
||
|
||
cairo_region_destroy (old_region);
|
||
cairo_region_destroy (new_region);
|
||
}
|
||
}
|
||
|
||
|
||
static void
|
||
gdk_window_move_resize_internal (GdkWindow *window,
|
||
gboolean with_move,
|
||
gint x,
|
||
gint y,
|
||
gint width,
|
||
gint height)
|
||
{
|
||
cairo_region_t *old_region, *new_region;
|
||
gboolean expose;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (window->destroyed)
|
||
return;
|
||
|
||
if (gdk_window_is_toplevel (window))
|
||
{
|
||
gdk_window_move_resize_toplevel (window, with_move, x, y, width, height);
|
||
return;
|
||
}
|
||
|
||
if (width == 0)
|
||
width = 1;
|
||
if (height == 0)
|
||
height = 1;
|
||
|
||
/* Bail early if no change */
|
||
if (window->width == width &&
|
||
window->height == height &&
|
||
(!with_move ||
|
||
(window->x == x &&
|
||
window->y == y)))
|
||
return;
|
||
|
||
/* Handle child windows */
|
||
|
||
expose = FALSE;
|
||
old_region = NULL;
|
||
|
||
if (gdk_window_is_viewable (window) &&
|
||
!window->input_only)
|
||
{
|
||
GdkRectangle r;
|
||
|
||
expose = TRUE;
|
||
|
||
r.x = window->x;
|
||
r.y = window->y;
|
||
r.width = window->width;
|
||
r.height = window->height;
|
||
|
||
old_region = cairo_region_create_rectangle (&r);
|
||
}
|
||
|
||
/* Set the new position and size */
|
||
if (with_move)
|
||
{
|
||
window->x = x;
|
||
window->y = y;
|
||
}
|
||
if (!(width < 0 && height < 0))
|
||
{
|
||
window->width = width;
|
||
window->height = height;
|
||
}
|
||
|
||
recompute_visible_regions (window, FALSE);
|
||
|
||
if (expose)
|
||
{
|
||
GdkRectangle r;
|
||
|
||
r.x = window->x;
|
||
r.y = window->y;
|
||
r.width = window->width;
|
||
r.height = window->height;
|
||
|
||
new_region = cairo_region_create_rectangle (&r);
|
||
|
||
cairo_region_union (new_region, old_region);
|
||
|
||
gdk_window_invalidate_region_full (window->parent, new_region, TRUE);
|
||
|
||
cairo_region_destroy (old_region);
|
||
cairo_region_destroy (new_region);
|
||
}
|
||
}
|
||
|
||
|
||
|
||
/**
|
||
* 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_move_to_rect:
|
||
* @window: the #GdkWindow to move
|
||
* @rect: (not nullable): the destination #GdkRectangle to align @window with
|
||
* @rect_anchor: the point on @rect to align with @window's anchor point
|
||
* @window_anchor: the point on @window to align with @rect's anchor point
|
||
* @anchor_hints: positioning hints to use when limited on space
|
||
* @rect_anchor_dx: horizontal offset to shift @window, i.e. @rect's anchor
|
||
* point
|
||
* @rect_anchor_dy: vertical offset to shift @window, i.e. @rect's anchor point
|
||
*
|
||
* Moves @window to @rect, aligning their anchor points.
|
||
*
|
||
* @rect is relative to the top-left corner of the window that @window is
|
||
* transient for. @rect_anchor and @window_anchor determine anchor points on
|
||
* @rect and @window to pin together. @rect's anchor point can optionally be
|
||
* offset by @rect_anchor_dx and @rect_anchor_dy, which is equivalent to
|
||
* offsetting the position of @window.
|
||
*
|
||
* @anchor_hints determines how @window will be moved if the anchor points cause
|
||
* it to move off-screen. For example, %GDK_ANCHOR_FLIP_X will replace
|
||
* %GDK_GRAVITY_NORTH_WEST with %GDK_GRAVITY_NORTH_EAST and vice versa if
|
||
* @window extends beyond the left or right edges of the monitor.
|
||
*
|
||
* Connect to the #GdkWindow::moved-to-rect signal to find out how it was
|
||
* actually positioned.
|
||
*
|
||
* Stability: Private
|
||
*/
|
||
void
|
||
gdk_window_move_to_rect (GdkWindow *window,
|
||
const GdkRectangle *rect,
|
||
GdkGravity rect_anchor,
|
||
GdkGravity window_anchor,
|
||
GdkAnchorHints anchor_hints,
|
||
gint rect_anchor_dx,
|
||
gint rect_anchor_dy)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
g_return_if_fail (window->transient_for);
|
||
g_return_if_fail (rect);
|
||
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
impl_class->move_to_rect (window,
|
||
rect,
|
||
rect_anchor,
|
||
window_anchor,
|
||
anchor_hints,
|
||
rect_anchor_dx,
|
||
rect_anchor_dy);
|
||
}
|
||
|
||
/**
|
||
* 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)
|
||
{
|
||
GList *tmp_list;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (dx == 0 && dy == 0)
|
||
return;
|
||
|
||
if (window->destroyed)
|
||
return;
|
||
|
||
/* First move all child windows, without causing invalidation */
|
||
|
||
tmp_list = window->children;
|
||
while (tmp_list)
|
||
{
|
||
GdkWindow *child = GDK_WINDOW (tmp_list->data);
|
||
|
||
/* Just update the positions, the bits will move with the copy */
|
||
child->x += dx;
|
||
child->y += dy;
|
||
|
||
tmp_list = tmp_list->next;
|
||
}
|
||
|
||
recompute_visible_regions (window, TRUE);
|
||
|
||
gdk_window_invalidate_rect_full (window, NULL, TRUE);
|
||
}
|
||
|
||
/**
|
||
* 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.
|
||
*/
|
||
void
|
||
gdk_window_move_region (GdkWindow *window,
|
||
const cairo_region_t *region,
|
||
gint dx,
|
||
gint dy)
|
||
{
|
||
cairo_region_t *expose_area;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
g_return_if_fail (region != NULL);
|
||
|
||
if (dx == 0 && dy == 0)
|
||
return;
|
||
|
||
if (window->destroyed)
|
||
return;
|
||
|
||
expose_area = cairo_region_copy (region);
|
||
cairo_region_translate (expose_area, dx, dy);
|
||
cairo_region_union (expose_area, region);
|
||
|
||
gdk_window_invalidate_region_full (window, expose_area, FALSE);
|
||
cairo_region_destroy (expose_area);
|
||
}
|
||
|
||
static void
|
||
gdk_window_set_cursor_internal (GdkWindow *window,
|
||
GdkDevice *device,
|
||
GdkCursor *cursor)
|
||
{
|
||
if (GDK_WINDOW_DESTROYED (window))
|
||
return;
|
||
|
||
g_assert (gdk_window_get_display (window) == gdk_device_get_display (device));
|
||
|
||
if (window->window_type == GDK_WINDOW_ROOT ||
|
||
window->window_type == GDK_WINDOW_FOREIGN)
|
||
GDK_DEVICE_GET_CLASS (device)->set_window_cursor (device, window, cursor);
|
||
else
|
||
{
|
||
GdkPointerWindowInfo *pointer_info;
|
||
GdkDisplay *display;
|
||
|
||
display = gdk_window_get_display (window);
|
||
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_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.
|
||
*
|
||
* Returns: (nullable) (transfer none): 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
|
||
*/
|
||
GdkCursor *
|
||
gdk_window_get_cursor (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
||
|
||
return window->cursor;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_cursor:
|
||
* @window: a #GdkWindow
|
||
* @cursor: (allow-none): a cursor
|
||
*
|
||
* Sets the default mouse pointer for a #GdkWindow.
|
||
*
|
||
* Note that @cursor must be for the same display as @window.
|
||
*
|
||
* Use gdk_cursor_new_for_display() or gdk_cursor_new_from_texture() 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)
|
||
{
|
||
GdkDisplay *display;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
display = gdk_window_get_display (window);
|
||
|
||
if (window->cursor)
|
||
{
|
||
g_object_unref (window->cursor);
|
||
window->cursor = NULL;
|
||
}
|
||
|
||
if (!GDK_WINDOW_DESTROYED (window))
|
||
{
|
||
GdkDevice *device;
|
||
GList *seats, *s;
|
||
|
||
if (cursor)
|
||
window->cursor = g_object_ref (cursor);
|
||
|
||
seats = gdk_display_list_seats (display);
|
||
|
||
for (s = seats; s; s = s->next)
|
||
{
|
||
GList *devices, *d;
|
||
|
||
device = gdk_seat_get_pointer (s->data);
|
||
gdk_window_set_cursor_internal (window, device, window->cursor);
|
||
|
||
devices = gdk_seat_get_slaves (s->data, GDK_SEAT_CAPABILITY_TABLET_STYLUS);
|
||
for (d = devices; d; d = d->next)
|
||
{
|
||
device = gdk_device_get_associated_device (d->data);
|
||
gdk_window_set_cursor_internal (window, device, window->cursor);
|
||
}
|
||
g_list_free (devices);
|
||
}
|
||
|
||
g_list_free (seats);
|
||
g_object_notify_by_pspec (G_OBJECT (window), properties[PROP_CURSOR]);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_device_cursor:
|
||
* @window: a #GdkWindow.
|
||
* @device: a master, pointer #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: (nullable) (transfer none): 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
|
||
**/
|
||
GdkCursor *
|
||
gdk_window_get_device_cursor (GdkWindow *window,
|
||
GdkDevice *device)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
||
g_return_val_if_fail (GDK_IS_DEVICE (device), NULL);
|
||
g_return_val_if_fail (gdk_device_get_source (device) != GDK_SOURCE_KEYBOARD, NULL);
|
||
g_return_val_if_fail (gdk_device_get_device_type (device) == GDK_DEVICE_TYPE_MASTER, NULL);
|
||
|
||
return g_hash_table_lookup (window->device_cursor, device);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_device_cursor:
|
||
* @window: a #GdkWindow
|
||
* @device: a master, pointer #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_texture() 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_device_cursor (GdkWindow *window,
|
||
GdkDevice *device,
|
||
GdkCursor *cursor)
|
||
{
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
g_return_if_fail (GDK_IS_DEVICE (device));
|
||
g_return_if_fail (gdk_device_get_source (device) != GDK_SOURCE_KEYBOARD);
|
||
g_return_if_fail (gdk_device_get_device_type (device) == GDK_DEVICE_TYPE_MASTER);
|
||
|
||
if (!cursor)
|
||
g_hash_table_remove (window->device_cursor, device);
|
||
else
|
||
g_hash_table_replace (window->device_cursor, device, g_object_ref (cursor));
|
||
|
||
gdk_window_set_cursor_internal (window, device, cursor);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_geometry:
|
||
* @window: a #GdkWindow
|
||
* @x: (out) (allow-none): return location for X coordinate of window (relative to its parent)
|
||
* @y: (out) (allow-none): return location for Y coordinate of window (relative to its parent)
|
||
* @width: (out) (allow-none): return location for width of window
|
||
* @height: (out) (allow-none): return location for height 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 much better
|
||
* to call gdk_window_get_position(), gdk_window_get_width() and
|
||
* gdk_window_get_height() instead, because it avoids the roundtrip to
|
||
* the X server and because these functions support the full 32-bit
|
||
* coordinate space, whereas gdk_window_get_geometry() is restricted to
|
||
* the 16-bit coordinates of X11.
|
||
*/
|
||
void
|
||
gdk_window_get_geometry (GdkWindow *window,
|
||
gint *x,
|
||
gint *y,
|
||
gint *width,
|
||
gint *height)
|
||
{
|
||
GdkWindow *parent;
|
||
GdkWindowImplClass *impl_class;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (!GDK_WINDOW_DESTROYED (window))
|
||
{
|
||
if (gdk_window_has_impl (window))
|
||
{
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
impl_class->get_geometry (window, x, y,
|
||
width, height);
|
||
/* This reports the position wrt to the native parent, we need to convert
|
||
it to be relative to the client side parent */
|
||
parent = window->parent;
|
||
if (parent && !gdk_window_has_impl (parent))
|
||
{
|
||
if (x)
|
||
*x -= parent->abs_x;
|
||
if (y)
|
||
*y -= parent->abs_y;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (x)
|
||
*x = window->x;
|
||
if (y)
|
||
*y = window->y;
|
||
if (width)
|
||
*width = window->width;
|
||
if (height)
|
||
*height = window->height;
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_width:
|
||
* @window: a #GdkWindow
|
||
*
|
||
* Returns the width of the given @window.
|
||
*
|
||
* On the X11 platform the returned size is the size reported in the
|
||
* most-recently-processed configure event, rather than the current
|
||
* size on the X server.
|
||
*
|
||
* Returns: The width of @window
|
||
*/
|
||
int
|
||
gdk_window_get_width (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
|
||
|
||
return window->width;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_height:
|
||
* @window: a #GdkWindow
|
||
*
|
||
* Returns the height of the given @window.
|
||
*
|
||
* On the X11 platform the returned size is the size reported in the
|
||
* most-recently-processed configure event, rather than the current
|
||
* size on the X server.
|
||
*
|
||
* Returns: The height of @window
|
||
*/
|
||
int
|
||
gdk_window_get_height (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
|
||
|
||
return window->height;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_origin:
|
||
* @window: a #GdkWindow
|
||
* @x: (out) (allow-none): return location for X coordinate
|
||
* @y: (out) (allow-none): 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.)
|
||
*
|
||
* Returns: not meaningful, ignore
|
||
*/
|
||
gint
|
||
gdk_window_get_origin (GdkWindow *window,
|
||
gint *x,
|
||
gint *y)
|
||
{
|
||
gint dummy_x, dummy_y;
|
||
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
|
||
|
||
gdk_window_get_root_coords (window,
|
||
0, 0,
|
||
x ? x : &dummy_x,
|
||
y ? y : &dummy_y);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_root_coords:
|
||
* @window: a #GdkWindow
|
||
* @x: X coordinate in window
|
||
* @y: Y coordinate in window
|
||
* @root_x: (out): return location for X coordinate
|
||
* @root_y: (out): 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 to pass
|
||
* in any position in the window, not just the origin.
|
||
*/
|
||
void
|
||
gdk_window_get_root_coords (GdkWindow *window,
|
||
gint x,
|
||
gint y,
|
||
gint *root_x,
|
||
gint *root_y)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (GDK_WINDOW_DESTROYED (window))
|
||
{
|
||
*root_x = 0;
|
||
*root_y = 0;
|
||
return;
|
||
}
|
||
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
impl_class->get_root_coords (window->impl_window,
|
||
x + window->abs_x,
|
||
y + window->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. Calling this function is equivalent to adding the return
|
||
* values of gdk_window_get_position() to the child coordinates.
|
||
*
|
||
* See also: gdk_window_coords_from_parent()
|
||
**/
|
||
void
|
||
gdk_window_coords_to_parent (GdkWindow *window,
|
||
gdouble x,
|
||
gdouble y,
|
||
gdouble *parent_x,
|
||
gdouble *parent_y)
|
||
{
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (parent_x)
|
||
*parent_x = x + window->x;
|
||
|
||
if (parent_y)
|
||
*parent_y = y + window->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.
|
||
*
|
||
* Calling this function is equivalent to subtracting the return
|
||
* values of gdk_window_get_position() from the parent coordinates.
|
||
*
|
||
* See also: gdk_window_coords_to_parent()
|
||
**/
|
||
void
|
||
gdk_window_coords_from_parent (GdkWindow *window,
|
||
gdouble parent_x,
|
||
gdouble parent_y,
|
||
gdouble *x,
|
||
gdouble *y)
|
||
{
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (x)
|
||
*x = parent_x - window->x;
|
||
|
||
if (y)
|
||
*y = parent_y - window->y;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_shape_combine_region:
|
||
* @window: a #GdkWindow
|
||
* @shape_region: (allow-none): 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.
|
||
*
|
||
* 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)
|
||
{
|
||
cairo_region_t *old_region, *new_region, *diff;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (GDK_WINDOW_DESTROYED (window))
|
||
return;
|
||
|
||
if (!window->shape && shape_region == NULL)
|
||
return;
|
||
|
||
window->shaped = (shape_region != NULL);
|
||
|
||
if (window->shape)
|
||
cairo_region_destroy (window->shape);
|
||
|
||
old_region = NULL;
|
||
if (GDK_WINDOW_IS_MAPPED (window))
|
||
old_region = cairo_region_copy (window->clip_region);
|
||
|
||
if (shape_region)
|
||
{
|
||
window->shape = cairo_region_copy (shape_region);
|
||
cairo_region_translate (window->shape, offset_x, offset_y);
|
||
}
|
||
else
|
||
window->shape = NULL;
|
||
|
||
recompute_visible_regions (window, FALSE);
|
||
|
||
if (old_region)
|
||
{
|
||
new_region = cairo_region_copy (window->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);
|
||
|
||
cairo_region_destroy (diff);
|
||
|
||
if (!gdk_window_is_toplevel (window))
|
||
{
|
||
/* 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, window->x, window->y);
|
||
|
||
gdk_window_invalidate_region_full (window->parent, diff, TRUE);
|
||
|
||
cairo_region_destroy (diff);
|
||
}
|
||
|
||
cairo_region_destroy (new_region);
|
||
cairo_region_destroy (old_region);
|
||
}
|
||
}
|
||
|
||
static void
|
||
do_child_shapes (GdkWindow *window,
|
||
gboolean merge)
|
||
{
|
||
GdkRectangle r;
|
||
cairo_region_t *region;
|
||
|
||
r.x = 0;
|
||
r.y = 0;
|
||
r.width = window->width;
|
||
r.height = window->height;
|
||
|
||
region = cairo_region_create_rectangle (&r);
|
||
remove_child_area (window, FALSE, region);
|
||
|
||
if (merge && window->shape)
|
||
cairo_region_subtract (region, window->shape);
|
||
|
||
cairo_region_xor_rectangle (region, &r);
|
||
|
||
gdk_window_shape_combine_region (window, region, 0, 0);
|
||
|
||
cairo_region_destroy (region);
|
||
}
|
||
|
||
/**
|
||
* 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_region().
|
||
*
|
||
* 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_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.
|
||
*/
|
||
void
|
||
gdk_window_input_shape_combine_region (GdkWindow *window,
|
||
const cairo_region_t *shape_region,
|
||
gint offset_x,
|
||
gint offset_y)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (GDK_WINDOW_DESTROYED (window))
|
||
return;
|
||
|
||
if (window->input_shape)
|
||
cairo_region_destroy (window->input_shape);
|
||
|
||
if (shape_region)
|
||
{
|
||
window->input_shape = cairo_region_copy (shape_region);
|
||
cairo_region_translate (window->input_shape, offset_x, offset_y);
|
||
}
|
||
else
|
||
window->input_shape = NULL;
|
||
|
||
if (gdk_window_has_impl (window))
|
||
{
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
impl_class->input_shape_combine_region (window, window->input_shape, 0, 0);
|
||
}
|
||
}
|
||
|
||
static void
|
||
do_child_input_shapes (GdkWindow *window,
|
||
gboolean merge)
|
||
{
|
||
GdkRectangle r;
|
||
cairo_region_t *region;
|
||
|
||
r.x = 0;
|
||
r.y = 0;
|
||
r.width = window->width;
|
||
r.height = window->height;
|
||
|
||
region = cairo_region_create_rectangle (&r);
|
||
remove_child_area (window, TRUE, region);
|
||
|
||
if (merge && window->shape)
|
||
cairo_region_subtract (region, window->shape);
|
||
if (merge && window->input_shape)
|
||
cairo_region_subtract (region, window->input_shape);
|
||
|
||
cairo_region_xor_rectangle (region, &r);
|
||
|
||
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.
|
||
**/
|
||
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_set_pass_through:
|
||
* @window: a #GdkWindow
|
||
* @pass_through: a boolean
|
||
*
|
||
* Sets whether input to the window is passed through to the window
|
||
* below.
|
||
*
|
||
* The default value of this is %FALSE, which means that pointer
|
||
* events that happen inside the window are send first to the window,
|
||
* but if the event is not selected by the event mask then the event
|
||
* is sent to the parent window, and so on up the hierarchy.
|
||
*
|
||
* If @pass_through is %TRUE then such pointer events happen as if the
|
||
* window wasn't there at all, and thus will be sent first to any
|
||
* windows below @window. This is useful if the window is used in a
|
||
* transparent fashion. In the terminology of the web this would be called
|
||
* "pointer-events: none".
|
||
*
|
||
* Note that a window with @pass_through %TRUE can still have a subwindow
|
||
* without pass through, so you can get events on a subset of a window. And in
|
||
* that cases you would get the in-between related events such as the pointer
|
||
* enter/leave events on its way to the destination window.
|
||
**/
|
||
void
|
||
gdk_window_set_pass_through (GdkWindow *window,
|
||
gboolean pass_through)
|
||
{
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
window->pass_through = !!pass_through;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_pass_through:
|
||
* @window: a #GdkWindow
|
||
*
|
||
* Returns whether input to the window is passed through to the window
|
||
* below.
|
||
*
|
||
* See gdk_window_set_pass_through() for details
|
||
**/
|
||
gboolean
|
||
gdk_window_get_pass_through (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
||
|
||
return window->pass_through;
|
||
}
|
||
|
||
/**
|
||
* 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_region().
|
||
*
|
||
* 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.
|
||
**/
|
||
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_get_modal_hint:
|
||
* @window: A toplevel #GdkWindow.
|
||
*
|
||
* Determines whether or not the window manager is hinted that @window
|
||
* has modal behaviour.
|
||
*
|
||
* Returns: whether or not the window has the modal hint set.
|
||
*/
|
||
gboolean
|
||
gdk_window_get_modal_hint (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
||
|
||
return window->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.
|
||
*
|
||
* Returns: whether or not the window should receive input focus.
|
||
*/
|
||
gboolean
|
||
gdk_window_get_accept_focus (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
||
|
||
return window->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.
|
||
*
|
||
* Returns: whether or not the window wants to receive input focus when
|
||
* it is mapped.
|
||
*/
|
||
gboolean
|
||
gdk_window_get_focus_on_map (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
||
|
||
return window->focus_on_map;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_is_input_only:
|
||
* @window: a toplevel #GdkWindow
|
||
*
|
||
* Determines whether or not the window is an input only window.
|
||
*
|
||
* Returns: %TRUE if @window is input only
|
||
*/
|
||
gboolean
|
||
gdk_window_is_input_only (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
||
|
||
return window->input_only;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_is_shaped:
|
||
* @window: a toplevel #GdkWindow
|
||
*
|
||
* Determines whether or not the window is shaped.
|
||
*
|
||
* Returns: %TRUE if @window is shaped
|
||
*/
|
||
gboolean
|
||
gdk_window_is_shaped (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
||
|
||
return window->shaped;
|
||
}
|
||
|
||
/* 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 *window)
|
||
{
|
||
GdkWindow *parent;
|
||
|
||
while ((parent = window->parent) != NULL &&
|
||
(parent->window_type != GDK_WINDOW_ROOT))
|
||
window = parent;
|
||
|
||
return window;
|
||
}
|
||
|
||
gboolean
|
||
_gdk_window_event_parent_of (GdkWindow *parent,
|
||
GdkWindow *child)
|
||
{
|
||
GdkWindow *w;
|
||
|
||
w = child;
|
||
while (w != NULL)
|
||
{
|
||
if (w == parent)
|
||
return TRUE;
|
||
|
||
w = w->parent;
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static void
|
||
update_cursor (GdkDisplay *display,
|
||
GdkDevice *device)
|
||
{
|
||
GdkWindow *cursor_window, *parent, *toplevel;
|
||
GdkWindow *pointer_window;
|
||
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 = grab->window;
|
||
}
|
||
else
|
||
{
|
||
/* otherwise use the cursor from the pointer window */
|
||
cursor_window = pointer_window;
|
||
}
|
||
|
||
/* Find the first window with the cursor actually set, as
|
||
the cursor is inherited from the parent */
|
||
while (cursor_window->cursor == NULL &&
|
||
!g_hash_table_contains (cursor_window->device_cursor, device) &&
|
||
(parent = cursor_window->parent) != 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 = get_event_toplevel (pointer_window);
|
||
GDK_DEVICE_GET_CLASS (device)->set_window_cursor (device, toplevel, cursor);
|
||
}
|
||
|
||
static gboolean
|
||
point_in_window (GdkWindow *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));
|
||
}
|
||
|
||
/* Same as point_in_window, except it also takes pass_through and its
|
||
interaction with child windows into account */
|
||
static gboolean
|
||
point_in_input_window (GdkWindow *window,
|
||
gdouble x,
|
||
gdouble y,
|
||
GdkWindow **input_window,
|
||
gdouble *input_window_x,
|
||
gdouble *input_window_y)
|
||
{
|
||
GdkWindow *sub;
|
||
double child_x, child_y;
|
||
GList *l;
|
||
|
||
if (!point_in_window (window, x, y))
|
||
return FALSE;
|
||
|
||
if (!window->pass_through)
|
||
{
|
||
if (input_window)
|
||
{
|
||
*input_window = window;
|
||
*input_window_x = x;
|
||
*input_window_y = y;
|
||
}
|
||
return TRUE;
|
||
}
|
||
|
||
/* For pass-through, must be over a child input window */
|
||
|
||
/* Children is ordered in reverse stack order, i.e. first is topmost */
|
||
for (l = window->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_input_window (sub, child_x, child_y,
|
||
input_window, input_window_x, input_window_y))
|
||
{
|
||
if (input_window)
|
||
gdk_window_coords_to_parent (sub,
|
||
*input_window_x,
|
||
*input_window_y,
|
||
input_window_x,
|
||
input_window_y);
|
||
return TRUE;
|
||
}
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
GdkWindow *
|
||
_gdk_window_find_child_at (GdkWindow *window,
|
||
double x,
|
||
double y)
|
||
{
|
||
GdkWindow *sub;
|
||
double child_x, child_y;
|
||
GList *l;
|
||
|
||
if (point_in_window (window, x, y))
|
||
{
|
||
/* Children is ordered in reverse stack order, i.e. first is topmost */
|
||
for (l = window->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_input_window (sub, child_x, child_y,
|
||
NULL, NULL, NULL))
|
||
return (GdkWindow *)sub;
|
||
}
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
GdkWindow *
|
||
_gdk_window_find_descendant_at (GdkWindow *window,
|
||
gdouble x,
|
||
gdouble y,
|
||
gdouble *found_x,
|
||
gdouble *found_y)
|
||
{
|
||
GdkWindow *sub, *input_window;
|
||
gdouble child_x, child_y;
|
||
GList *l;
|
||
gboolean found;
|
||
|
||
if (point_in_window (window, x, y))
|
||
{
|
||
do
|
||
{
|
||
found = FALSE;
|
||
/* Children is ordered in reverse stack order, i.e. first is topmost */
|
||
for (l = window->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_input_window (sub, child_x, child_y,
|
||
&input_window, &child_x, &child_y))
|
||
{
|
||
x = child_x;
|
||
y = child_y;
|
||
window = input_window;
|
||
found = TRUE;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
while (found);
|
||
}
|
||
else
|
||
{
|
||
/* Not in window at all */
|
||
window = NULL;
|
||
}
|
||
|
||
if (found_x)
|
||
*found_x = x;
|
||
if (found_y)
|
||
*found_y = y;
|
||
|
||
return window;
|
||
}
|
||
|
||
/**
|
||
* 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().
|
||
**/
|
||
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_window_get_display (window);
|
||
|
||
if (toplevel)
|
||
{
|
||
if (GDK_WINDOW_IMPL_GET_CLASS (toplevel->impl)->beep (toplevel))
|
||
return;
|
||
}
|
||
|
||
/* If windows fail to beep, we beep the display. */
|
||
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.
|
||
**/
|
||
void
|
||
gdk_window_set_support_multidevice (GdkWindow *window,
|
||
gboolean support_multidevice)
|
||
{
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (GDK_WINDOW_DESTROYED (window))
|
||
return;
|
||
|
||
if (window->support_multidevice == support_multidevice)
|
||
return;
|
||
|
||
window->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.
|
||
**/
|
||
gboolean
|
||
gdk_window_get_support_multidevice (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
||
|
||
if (GDK_WINDOW_DESTROYED (window))
|
||
return FALSE;
|
||
|
||
return window->support_multidevice;
|
||
}
|
||
|
||
/* send motion events if the right buttons are down */
|
||
|
||
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 ((guint) 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_BUTTON_RELEASE:
|
||
event->button.time = the_time;
|
||
event->button.axes = NULL;
|
||
event->button.state = the_state;
|
||
break;
|
||
|
||
case GDK_TOUCH_BEGIN:
|
||
case GDK_TOUCH_UPDATE:
|
||
case GDK_TOUCH_END:
|
||
case GDK_TOUCH_CANCEL:
|
||
event->touch.time = the_time;
|
||
event->touch.axes = NULL;
|
||
event->touch.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_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_DROP_START:
|
||
event->dnd.time = the_time;
|
||
break;
|
||
|
||
case GDK_TOUCHPAD_SWIPE:
|
||
event->touchpad_swipe.time = the_time;
|
||
event->touchpad_swipe.state = the_state;
|
||
break;
|
||
|
||
case GDK_TOUCHPAD_PINCH:
|
||
event->touchpad_pinch.time = the_time;
|
||
event->touchpad_pinch.state = the_state;
|
||
break;
|
||
|
||
case GDK_FOCUS_CHANGE:
|
||
case GDK_CONFIGURE:
|
||
case GDK_MAP:
|
||
case GDK_UNMAP:
|
||
case GDK_DELETE:
|
||
case GDK_DESTROY:
|
||
case GDK_EXPOSE:
|
||
default:
|
||
break;
|
||
}
|
||
|
||
if (event_in_queue)
|
||
{
|
||
if (before_event)
|
||
_gdk_event_queue_insert_before (gdk_window_get_display (window), event_in_queue, event);
|
||
else
|
||
_gdk_event_queue_insert_after (gdk_window_get_display (window), event_in_queue, event);
|
||
}
|
||
else
|
||
_gdk_event_queue_append (gdk_window_get_display (window), event);
|
||
|
||
return event;
|
||
}
|
||
|
||
void
|
||
_gdk_display_set_window_under_pointer (GdkDisplay *display,
|
||
GdkDevice *device,
|
||
GdkWindow *window)
|
||
{
|
||
GdkPointerWindowInfo *device_info;
|
||
|
||
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);
|
||
}
|
||
}
|
||
|
||
#define GDK_ANY_BUTTON_MASK (GDK_BUTTON1_MASK | \
|
||
GDK_BUTTON2_MASK | \
|
||
GDK_BUTTON3_MASK | \
|
||
GDK_BUTTON4_MASK | \
|
||
GDK_BUTTON5_MASK)
|
||
|
||
#ifdef DEBUG_WINDOW_PRINTING
|
||
|
||
#ifdef GDK_WINDOWING_X11
|
||
#include "x11/gdkx.h"
|
||
#endif
|
||
|
||
static void
|
||
gdk_window_print (GdkWindow *window,
|
||
int indent)
|
||
{
|
||
char *s;
|
||
const char *window_types[] = {
|
||
"root",
|
||
"toplevel",
|
||
"child",
|
||
"dialog",
|
||
"temp",
|
||
"foreign",
|
||
"subsurface"
|
||
};
|
||
|
||
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_window_get_xid (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);
|
||
|
||
if (window->alpha != 255)
|
||
g_print (" alpha[%d]",
|
||
window->alpha);
|
||
|
||
s = print_region (window->clip_region);
|
||
g_print (" clipbox[%s]", s);
|
||
|
||
g_print ("\n");
|
||
}
|
||
|
||
|
||
static void
|
||
gdk_window_print_tree (GdkWindow *window,
|
||
int indent,
|
||
gboolean include_input_only)
|
||
{
|
||
GList *l;
|
||
|
||
if (window->input_only && !include_input_only)
|
||
return;
|
||
|
||
gdk_window_print (window, indent);
|
||
|
||
for (l = window->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;
|
||
gboolean unlink_event = FALSE;
|
||
GdkDeviceGrabInfo *button_release_grab;
|
||
GdkPointerWindowInfo *pointer_info = NULL;
|
||
GdkDevice *device, *source_device;
|
||
|
||
_gdk_display_update_last_event (display, event);
|
||
|
||
device = gdk_event_get_device (event);
|
||
source_device = gdk_event_get_source_device (event);
|
||
|
||
if (device)
|
||
{
|
||
if (gdk_device_get_source (device) != GDK_SOURCE_KEYBOARD &&
|
||
gdk_device_get_source (device) != GDK_SOURCE_TABLET_PAD)
|
||
{
|
||
pointer_info = _gdk_display_get_pointer_info (display, device);
|
||
|
||
if (source_device != pointer_info->last_slave &&
|
||
gdk_device_get_device_type (source_device) == GDK_DEVICE_TYPE_SLAVE)
|
||
pointer_info->last_slave = source_device;
|
||
else if (pointer_info->last_slave)
|
||
source_device = pointer_info->last_slave;
|
||
}
|
||
|
||
_gdk_display_device_grab_update (display, device, source_device, serial);
|
||
|
||
if (gdk_device_get_input_mode (device) == 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)
|
||
goto out;
|
||
|
||
#ifdef DEBUG_WINDOW_PRINTING
|
||
if (event->any.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 (event_window->window_type == GDK_WINDOW_ROOT)
|
||
goto out;
|
||
|
||
if (event->any.type == GDK_ENTER_NOTIFY)
|
||
_gdk_display_set_window_under_pointer (display, device, event_window);
|
||
else if (event->any.type == GDK_LEAVE_NOTIFY)
|
||
_gdk_display_set_window_under_pointer (display, device, NULL);
|
||
|
||
if ((event->any.type == GDK_BUTTON_RELEASE ||
|
||
event->any.type == GDK_TOUCH_CANCEL ||
|
||
event->any.type == GDK_TOUCH_END) &&
|
||
!event->any.send_event)
|
||
{
|
||
if (event->any.type == GDK_BUTTON_RELEASE ||
|
||
gdk_event_get_pointer_emulated (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, source_device, serial);
|
||
}
|
||
}
|
||
}
|
||
|
||
out:
|
||
if (unlink_event)
|
||
{
|
||
_gdk_event_queue_remove_link (display, event_link);
|
||
g_list_free_1 (event_link);
|
||
gdk_event_free (event);
|
||
}
|
||
|
||
/* This does two things - first it sees if there are motions at the
|
||
* end of the queue that can be compressed. Second, if there is just
|
||
* a single motion that won't be dispatched because it is a compression
|
||
* candidate it queues up flushing the event queue.
|
||
*/
|
||
_gdk_event_queue_handle_motion_compression (display);
|
||
}
|
||
|
||
/**
|
||
* 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.
|
||
**/
|
||
cairo_surface_t *
|
||
gdk_window_create_similar_surface (GdkWindow * window,
|
||
cairo_content_t content,
|
||
int width,
|
||
int height)
|
||
{
|
||
cairo_surface_t *window_surface, *surface;
|
||
double sx, sy;
|
||
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
||
|
||
window_surface = gdk_window_ref_impl_surface (window);
|
||
sx = sy = 1;
|
||
cairo_surface_get_device_scale (window_surface, &sx, &sy);
|
||
|
||
if (GDK_DISPLAY_DEBUG_CHECK (window->display, CAIRO_IMAGE))
|
||
{
|
||
surface = cairo_image_surface_create (content == CAIRO_CONTENT_COLOR ? CAIRO_FORMAT_RGB24 :
|
||
content == CAIRO_CONTENT_ALPHA ? CAIRO_FORMAT_A8 : CAIRO_FORMAT_ARGB32,
|
||
width * sx, height * sy);
|
||
cairo_surface_set_device_scale (surface, sx, sy);
|
||
}
|
||
else
|
||
{
|
||
surface = cairo_surface_create_similar (window_surface,
|
||
content,
|
||
width, height);
|
||
}
|
||
|
||
cairo_surface_destroy (window_surface);
|
||
|
||
return surface;
|
||
}
|
||
|
||
|
||
/**
|
||
* gdk_window_create_similar_image_surface:
|
||
* @window: (nullable): window to make new surface similar to, or
|
||
* %NULL if none
|
||
* @format: (type int): the format for the new surface
|
||
* @width: width of the new surface
|
||
* @height: height of the new surface
|
||
* @scale: the scale of the new surface, or 0 to use same as @window
|
||
*
|
||
* Create a new image surface that is efficient to draw on the
|
||
* given @window.
|
||
*
|
||
* Initially the surface contents are all 0 (transparent if contents
|
||
* have transparency, black otherwise.)
|
||
*
|
||
* The @width and @height of the new surface are not affected by
|
||
* the scaling factor of the @window, or by the @scale argument; they
|
||
* are the size of the surface in device pixels. If you wish to create
|
||
* an image surface capable of holding the contents of @window you can
|
||
* use:
|
||
*
|
||
* |[<!-- language="C" -->
|
||
* int scale = gdk_window_get_scale_factor (window);
|
||
* int width = gdk_window_get_width (window) * scale;
|
||
* int height = gdk_window_get_height (window) * scale;
|
||
*
|
||
* // format is set elsewhere
|
||
* cairo_surface_t *surface =
|
||
* gdk_window_create_similar_image_surface (window,
|
||
* format,
|
||
* width, height,
|
||
* scale);
|
||
* ]|
|
||
*
|
||
* Note that unlike cairo_surface_create_similar_image(), the new
|
||
* surface's device scale is set to @scale, or to the scale factor of
|
||
* @window if @scale is 0.
|
||
*
|
||
* 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.
|
||
**/
|
||
cairo_surface_t *
|
||
gdk_window_create_similar_image_surface (GdkWindow * window,
|
||
cairo_format_t format,
|
||
int width,
|
||
int height,
|
||
int scale)
|
||
{
|
||
cairo_surface_t *surface;
|
||
|
||
g_return_val_if_fail (window == NULL || GDK_IS_WINDOW (window), NULL);
|
||
|
||
if (window == NULL)
|
||
{
|
||
surface = cairo_image_surface_create (format, width, height);
|
||
}
|
||
else if (GDK_WINDOW_IMPL_GET_CLASS (window->impl)->create_similar_image_surface)
|
||
{
|
||
surface =
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->create_similar_image_surface (window, format, width, height);
|
||
}
|
||
else
|
||
{
|
||
cairo_surface_t *window_surface;
|
||
|
||
window_surface = gdk_window_ref_impl_surface (window);
|
||
surface =
|
||
cairo_surface_create_similar_image (window_surface,
|
||
format,
|
||
width,
|
||
height);
|
||
cairo_surface_destroy (window_surface);
|
||
}
|
||
|
||
if (scale == 0)
|
||
scale = gdk_window_get_scale_factor (window);
|
||
|
||
cairo_surface_set_device_scale (surface, scale, scale);
|
||
|
||
return surface;
|
||
}
|
||
|
||
|
||
/**
|
||
* gdk_window_focus:
|
||
* @window: a #GdkWindow
|
||
* @timestamp: timestamp of the event triggering the window focus
|
||
*
|
||
* Sets keyboard focus to @window. In most cases, gtk_window_present()
|
||
* should be used on a #GtkWindow, rather than calling this function.
|
||
*
|
||
**/
|
||
void
|
||
gdk_window_focus (GdkWindow *window,
|
||
guint32 timestamp)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->focus (window, timestamp);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_type_hint:
|
||
* @window: A toplevel #GdkWindow
|
||
* @hint: A hint of the function this window will have
|
||
*
|
||
* The application can use this call to provide a hint to the window
|
||
* manager about the functionality of a window. The window manager
|
||
* can use this information when determining the decoration and behaviour
|
||
* of the window.
|
||
*
|
||
* The hint must be set before the window is mapped.
|
||
**/
|
||
void
|
||
gdk_window_set_type_hint (GdkWindow *window,
|
||
GdkWindowTypeHint hint)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_type_hint (window, hint);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_type_hint:
|
||
* @window: A toplevel #GdkWindow
|
||
*
|
||
* This function returns the type hint set for a window.
|
||
*
|
||
* Returns: The type hint set for @window
|
||
**/
|
||
GdkWindowTypeHint
|
||
gdk_window_get_type_hint (GdkWindow *window)
|
||
{
|
||
return GDK_WINDOW_IMPL_GET_CLASS (window->impl)->get_type_hint (window);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_modal_hint:
|
||
* @window: A toplevel #GdkWindow
|
||
* @modal: %TRUE if the window is modal, %FALSE otherwise.
|
||
*
|
||
* The application can use this hint to tell the window manager
|
||
* that a certain window has modal behaviour. The window manager
|
||
* can use this information to handle modal windows in a special
|
||
* way.
|
||
*
|
||
* You should only use this on windows for which you have
|
||
* previously called gdk_window_set_transient_for()
|
||
**/
|
||
void
|
||
gdk_window_set_modal_hint (GdkWindow *window,
|
||
gboolean modal)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_modal_hint (window, modal);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_skip_taskbar_hint:
|
||
* @window: a toplevel #GdkWindow
|
||
* @skips_taskbar: %TRUE to skip the taskbar
|
||
*
|
||
* Toggles whether a window should appear in a task list or window
|
||
* list. If a window’s semantic type as specified with
|
||
* gdk_window_set_type_hint() already fully describes the window, this
|
||
* function should not be called in addition,
|
||
* instead you should allow the window to be treated according to
|
||
* standard policy for its semantic type.
|
||
**/
|
||
void
|
||
gdk_window_set_skip_taskbar_hint (GdkWindow *window,
|
||
gboolean skips_taskbar)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_skip_taskbar_hint (window, skips_taskbar);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_skip_pager_hint:
|
||
* @window: a toplevel #GdkWindow
|
||
* @skips_pager: %TRUE to skip the pager
|
||
*
|
||
* Toggles whether a window should appear in a pager (workspace
|
||
* switcher, or other desktop utility program that displays a small
|
||
* thumbnail representation of the windows on the desktop). If a
|
||
* window’s semantic type as specified with gdk_window_set_type_hint()
|
||
* already fully describes the window, this function should
|
||
* not be called in addition, instead you should
|
||
* allow the window to be treated according to standard policy for
|
||
* its semantic type.
|
||
**/
|
||
void
|
||
gdk_window_set_skip_pager_hint (GdkWindow *window,
|
||
gboolean skips_pager)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_skip_pager_hint (window, skips_pager);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_urgency_hint:
|
||
* @window: a toplevel #GdkWindow
|
||
* @urgent: %TRUE if the window is urgent
|
||
*
|
||
* Toggles whether a window needs the user's
|
||
* urgent attention.
|
||
**/
|
||
void
|
||
gdk_window_set_urgency_hint (GdkWindow *window,
|
||
gboolean urgent)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_urgency_hint (window, urgent);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_geometry_hints:
|
||
* @window: a toplevel #GdkWindow
|
||
* @geometry: geometry hints
|
||
* @geom_mask: bitmask indicating fields of @geometry to pay attention to
|
||
*
|
||
* Sets the geometry hints for @window. Hints flagged in @geom_mask
|
||
* are set, hints not flagged in @geom_mask are unset.
|
||
* To unset all hints, use a @geom_mask of 0 and a @geometry of %NULL.
|
||
*
|
||
* This function provides hints to the windowing system about
|
||
* acceptable sizes for a toplevel window. The purpose of
|
||
* this is to constrain user resizing, but the windowing system
|
||
* will typically (but is not required to) also constrain the
|
||
* current size of the window to the provided values and
|
||
* constrain programatic resizing via gdk_window_resize() or
|
||
* gdk_window_move_resize().
|
||
*
|
||
* Note that on X11, this effect has no effect on windows
|
||
* of type %GDK_WINDOW_TEMP since these windows are not resizable
|
||
* by the user.
|
||
*
|
||
* Since you can’t count on the windowing system doing the
|
||
* constraints for programmatic resizes, you should generally
|
||
* call gdk_window_constrain_size() yourself to determine
|
||
* appropriate sizes.
|
||
*
|
||
**/
|
||
void
|
||
gdk_window_set_geometry_hints (GdkWindow *window,
|
||
const GdkGeometry *geometry,
|
||
GdkWindowHints geom_mask)
|
||
{
|
||
g_return_if_fail (geometry != NULL || geom_mask == 0);
|
||
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_geometry_hints (window, geometry, geom_mask);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_title:
|
||
* @window: a toplevel #GdkWindow
|
||
* @title: title of @window
|
||
*
|
||
* Sets the title of a toplevel window, to be displayed in the titlebar.
|
||
* If you haven’t explicitly set the icon name for the window
|
||
* (using gdk_window_set_icon_name()), the icon name will be set to
|
||
* @title as well. @title must be in UTF-8 encoding (as with all
|
||
* user-readable strings in GDK/GTK+). @title may not be %NULL.
|
||
**/
|
||
void
|
||
gdk_window_set_title (GdkWindow *window,
|
||
const gchar *title)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_title (window, title);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_role:
|
||
* @window: a toplevel #GdkWindow
|
||
* @role: a string indicating its role
|
||
*
|
||
* When using GTK+, typically you should use gtk_window_set_role() instead
|
||
* of this low-level function.
|
||
*
|
||
* The window manager and session manager use a window’s role to
|
||
* distinguish it from other kinds of window in the same application.
|
||
* When an application is restarted after being saved in a previous
|
||
* session, all windows with the same title and role are treated as
|
||
* interchangeable. So if you have two windows with the same title
|
||
* that should be distinguished for session management purposes, you
|
||
* should set the role on those windows. It doesn’t matter what string
|
||
* you use for the role, as long as you have a different role for each
|
||
* non-interchangeable kind of window.
|
||
*
|
||
**/
|
||
void
|
||
gdk_window_set_role (GdkWindow *window,
|
||
const gchar *role)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_role (window, role);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_startup_id:
|
||
* @window: a toplevel #GdkWindow
|
||
* @startup_id: a string with startup-notification identifier
|
||
*
|
||
* When using GTK+, typically you should use gtk_window_set_startup_id()
|
||
* instead of this low-level function.
|
||
**/
|
||
void
|
||
gdk_window_set_startup_id (GdkWindow *window,
|
||
const gchar *startup_id)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_startup_id (window, startup_id);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_transient_for:
|
||
* @window: a toplevel #GdkWindow
|
||
* @parent: another toplevel #GdkWindow
|
||
*
|
||
* Indicates to the window manager that @window is a transient dialog
|
||
* associated with the application window @parent. This allows the
|
||
* window manager to do things like center @window on @parent and
|
||
* keep @window above @parent.
|
||
*
|
||
* See gtk_window_set_transient_for() if you’re using #GtkWindow or
|
||
* #GtkDialog.
|
||
**/
|
||
void
|
||
gdk_window_set_transient_for (GdkWindow *window,
|
||
GdkWindow *parent)
|
||
{
|
||
window->transient_for = parent;
|
||
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_transient_for (window, parent);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_root_origin:
|
||
* @window: a toplevel #GdkWindow
|
||
* @x: (out): return location for X position of window frame
|
||
* @y: (out): return location for Y position of window frame
|
||
*
|
||
* Obtains the top-left corner of the window manager frame in root
|
||
* window coordinates.
|
||
*
|
||
**/
|
||
void
|
||
gdk_window_get_root_origin (GdkWindow *window,
|
||
gint *x,
|
||
gint *y)
|
||
{
|
||
GdkRectangle rect;
|
||
|
||
gdk_window_get_frame_extents (window, &rect);
|
||
|
||
if (x)
|
||
*x = rect.x;
|
||
|
||
if (y)
|
||
*y = rect.y;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_frame_extents:
|
||
* @window: a toplevel #GdkWindow
|
||
* @rect: (out): rectangle to fill with bounding box of the window frame
|
||
*
|
||
* Obtains the bounding box of the window, including window manager
|
||
* titlebar/borders if any. The frame position is given in root window
|
||
* coordinates. To get the position of the window itself (rather than
|
||
* the frame) in root window coordinates, use gdk_window_get_origin().
|
||
*
|
||
**/
|
||
void
|
||
gdk_window_get_frame_extents (GdkWindow *window,
|
||
GdkRectangle *rect)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->get_frame_extents (window, rect);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_accept_focus:
|
||
* @window: a toplevel #GdkWindow
|
||
* @accept_focus: %TRUE if the window should receive input focus
|
||
*
|
||
* Setting @accept_focus to %FALSE hints the desktop environment that the
|
||
* window doesn’t want to receive input focus.
|
||
*
|
||
* On X, it is the responsibility of the window manager to interpret this
|
||
* hint. ICCCM-compliant window manager usually respect it.
|
||
**/
|
||
void
|
||
gdk_window_set_accept_focus (GdkWindow *window,
|
||
gboolean accept_focus)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_accept_focus (window, accept_focus);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_focus_on_map:
|
||
* @window: a toplevel #GdkWindow
|
||
* @focus_on_map: %TRUE if the window should receive input focus when mapped
|
||
*
|
||
* Setting @focus_on_map to %FALSE hints the desktop environment that the
|
||
* window doesn’t want to receive input focus when it is mapped.
|
||
* focus_on_map should be turned off for windows that aren’t triggered
|
||
* interactively (such as popups from network activity).
|
||
*
|
||
* On X, it is the responsibility of the window manager to interpret
|
||
* this hint. Window managers following the freedesktop.org window
|
||
* manager extension specification should respect it.
|
||
**/
|
||
void
|
||
gdk_window_set_focus_on_map (GdkWindow *window,
|
||
gboolean focus_on_map)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_focus_on_map (window, focus_on_map);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_icon_list:
|
||
* @window: The #GdkWindow toplevel window to set the icon of.
|
||
* @surfaces: (transfer none) (element-type GdkTexture):
|
||
* A list of image surfaces, of different sizes.
|
||
*
|
||
* Sets a list of icons for the window. One of these will be used
|
||
* to represent the window when it has been iconified. The icon is
|
||
* usually shown in an icon box or some sort of task bar. Which icon
|
||
* size is shown depends on the window manager. The window manager
|
||
* can scale the icon but setting several size icons can give better
|
||
* image quality since the window manager may only need to scale the
|
||
* icon by a small amount or not at all.
|
||
*
|
||
* Note that some platforms don't support window icons.
|
||
*/
|
||
void
|
||
gdk_window_set_icon_list (GdkWindow *window,
|
||
GList *textures)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_icon_list (window, textures);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_icon_name:
|
||
* @window: a toplevel #GdkWindow
|
||
* @name: (allow-none): name of window while iconified (minimized)
|
||
*
|
||
* Windows may have a name used while minimized, distinct from the
|
||
* name they display in their titlebar. Most of the time this is a bad
|
||
* idea from a user interface standpoint. But you can set such a name
|
||
* with this function, if you like.
|
||
*
|
||
* After calling this with a non-%NULL @name, calls to gdk_window_set_title()
|
||
* will not update the icon title.
|
||
*
|
||
* Using %NULL for @name unsets the icon title; further calls to
|
||
* gdk_window_set_title() will again update the icon title as well.
|
||
*
|
||
* Note that some platforms don't support window icons.
|
||
**/
|
||
void
|
||
gdk_window_set_icon_name (GdkWindow *window,
|
||
const gchar *name)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_icon_name (window, name);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_iconify:
|
||
* @window: a toplevel #GdkWindow
|
||
*
|
||
* Asks to iconify (minimize) @window. The window manager may choose
|
||
* to ignore the request, but normally will honor it. Using
|
||
* gtk_window_iconify() is preferred, if you have a #GtkWindow widget.
|
||
*
|
||
* This function only makes sense when @window is a toplevel window.
|
||
*
|
||
**/
|
||
void
|
||
gdk_window_iconify (GdkWindow *window)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->iconify (window);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_deiconify:
|
||
* @window: a toplevel #GdkWindow
|
||
*
|
||
* Attempt to deiconify (unminimize) @window. On X11 the window manager may
|
||
* choose to ignore the request to deiconify. When using GTK+,
|
||
* use gtk_window_deiconify() instead of the #GdkWindow variant. Or better yet,
|
||
* you probably want to use gtk_window_present(), which raises the window, focuses it,
|
||
* unminimizes it, and puts it on the current desktop.
|
||
*
|
||
**/
|
||
void
|
||
gdk_window_deiconify (GdkWindow *window)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->deiconify (window);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_stick:
|
||
* @window: a toplevel #GdkWindow
|
||
*
|
||
* “Pins” a window such that it’s on all workspaces and does not scroll
|
||
* with viewports, for window managers that have scrollable viewports.
|
||
* (When using #GtkWindow, gtk_window_stick() may be more useful.)
|
||
*
|
||
* On the X11 platform, this function depends on window manager
|
||
* support, so may have no effect with many window managers. However,
|
||
* GDK will do the best it can to convince the window manager to stick
|
||
* the window. For window managers that don’t support this operation,
|
||
* there’s nothing you can do to force it to happen.
|
||
*
|
||
**/
|
||
void
|
||
gdk_window_stick (GdkWindow *window)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->stick (window);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_unstick:
|
||
* @window: a toplevel #GdkWindow
|
||
*
|
||
* Reverse operation for gdk_window_stick(); see gdk_window_stick(),
|
||
* and gtk_window_unstick().
|
||
*
|
||
**/
|
||
void
|
||
gdk_window_unstick (GdkWindow *window)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->unstick (window);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_maximize:
|
||
* @window: a toplevel #GdkWindow
|
||
*
|
||
* Maximizes the window. If the window was already maximized, then
|
||
* this function does nothing.
|
||
*
|
||
* On X11, asks the window manager to maximize @window, if the window
|
||
* manager supports this operation. Not all window managers support
|
||
* this, and some deliberately ignore it or don’t have a concept of
|
||
* “maximized”; so you can’t rely on the maximization actually
|
||
* happening. But it will happen with most standard window managers,
|
||
* and GDK makes a best effort to get it to happen.
|
||
*
|
||
* On Windows, reliably maximizes the window.
|
||
*
|
||
**/
|
||
void
|
||
gdk_window_maximize (GdkWindow *window)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->maximize (window);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_unmaximize:
|
||
* @window: a toplevel #GdkWindow
|
||
*
|
||
* Unmaximizes the window. If the window wasn’t maximized, then this
|
||
* function does nothing.
|
||
*
|
||
* On X11, asks the window manager to unmaximize @window, if the
|
||
* window manager supports this operation. Not all window managers
|
||
* support this, and some deliberately ignore it or don’t have a
|
||
* concept of “maximized”; so you can’t rely on the unmaximization
|
||
* actually happening. But it will happen with most standard window
|
||
* managers, and GDK makes a best effort to get it to happen.
|
||
*
|
||
* On Windows, reliably unmaximizes the window.
|
||
*
|
||
**/
|
||
void
|
||
gdk_window_unmaximize (GdkWindow *window)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->unmaximize (window);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_fullscreen:
|
||
* @window: a toplevel #GdkWindow
|
||
*
|
||
* Moves the window into fullscreen mode. This means the
|
||
* window covers the entire screen and is above any panels
|
||
* or task bars.
|
||
*
|
||
* If the window was already fullscreen, then this function does nothing.
|
||
*
|
||
* On X11, asks the window manager to put @window in a fullscreen
|
||
* state, if the window manager supports this operation. Not all
|
||
* window managers support this, and some deliberately ignore it or
|
||
* don’t have a concept of “fullscreen”; so you can’t rely on the
|
||
* fullscreenification actually happening. But it will happen with
|
||
* most standard window managers, and GDK makes a best effort to get
|
||
* it to happen.
|
||
**/
|
||
void
|
||
gdk_window_fullscreen (GdkWindow *window)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->fullscreen (window);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_fullscreen_on_monitor:
|
||
* @window: a toplevel #GdkWindow
|
||
* @monitor: Which monitor to display fullscreen on.
|
||
*
|
||
* Moves the window into fullscreen mode on the given monitor. This means
|
||
* the window covers the entire screen and is above any panels or task bars.
|
||
*
|
||
* If the window was already fullscreen, then this function does nothing.
|
||
**/
|
||
void
|
||
gdk_window_fullscreen_on_monitor (GdkWindow *window,
|
||
GdkMonitor *monitor)
|
||
{
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
g_return_if_fail (GDK_IS_MONITOR (monitor));
|
||
g_return_if_fail (gdk_monitor_get_display (monitor) == gdk_window_get_display (window));
|
||
g_return_if_fail (gdk_monitor_is_valid (monitor));
|
||
|
||
if (GDK_WINDOW_IMPL_GET_CLASS (window->impl)->fullscreen_on_monitor != NULL)
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->fullscreen_on_monitor (window, monitor);
|
||
else
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->fullscreen (window);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_fullscreen_mode:
|
||
* @window: a toplevel #GdkWindow
|
||
* @mode: fullscreen mode
|
||
*
|
||
* Specifies whether the @window should span over all monitors (in a multi-head
|
||
* setup) or only the current monitor when in fullscreen mode.
|
||
*
|
||
* The @mode argument is from the #GdkFullscreenMode enumeration.
|
||
* If #GDK_FULLSCREEN_ON_ALL_MONITORS is specified, the fullscreen @window will
|
||
* span over all monitors of the display.
|
||
*
|
||
* On X11, searches through the list of monitors display the ones
|
||
* which delimit the 4 edges of the entire display and will ask the window
|
||
* manager to span the @window over these monitors.
|
||
*
|
||
* If the XINERAMA extension is not available or not usable, this function
|
||
* has no effect.
|
||
*
|
||
* Not all window managers support this, so you can’t rely on the fullscreen
|
||
* window to span over the multiple monitors when #GDK_FULLSCREEN_ON_ALL_MONITORS
|
||
* is specified.
|
||
**/
|
||
void
|
||
gdk_window_set_fullscreen_mode (GdkWindow *window,
|
||
GdkFullscreenMode mode)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (window->fullscreen_mode != mode)
|
||
{
|
||
window->fullscreen_mode = mode;
|
||
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
if (impl_class->apply_fullscreen_mode != NULL)
|
||
impl_class->apply_fullscreen_mode (window);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_fullscreen_mode:
|
||
* @window: a toplevel #GdkWindow
|
||
*
|
||
* Obtains the #GdkFullscreenMode of the @window.
|
||
*
|
||
* Returns: The #GdkFullscreenMode applied to the window when fullscreen.
|
||
**/
|
||
GdkFullscreenMode
|
||
gdk_window_get_fullscreen_mode (GdkWindow *window)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), GDK_FULLSCREEN_ON_CURRENT_MONITOR);
|
||
|
||
return window->fullscreen_mode;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_unfullscreen:
|
||
* @window: a toplevel #GdkWindow
|
||
*
|
||
* Moves the window out of fullscreen mode. If the window was not
|
||
* fullscreen, does nothing.
|
||
*
|
||
* On X11, asks the window manager to move @window out of the fullscreen
|
||
* state, if the window manager supports this operation. Not all
|
||
* window managers support this, and some deliberately ignore it or
|
||
* don’t have a concept of “fullscreen”; so you can’t rely on the
|
||
* unfullscreenification actually happening. But it will happen with
|
||
* most standard window managers, and GDK makes a best effort to get
|
||
* it to happen.
|
||
**/
|
||
void
|
||
gdk_window_unfullscreen (GdkWindow *window)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->unfullscreen (window);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_keep_above:
|
||
* @window: a toplevel #GdkWindow
|
||
* @setting: whether to keep @window above other windows
|
||
*
|
||
* Set if @window must be kept above other windows. If the
|
||
* window was already above, then this function does nothing.
|
||
*
|
||
* On X11, asks the window manager to keep @window above, if the window
|
||
* manager supports this operation. Not all window managers support
|
||
* this, and some deliberately ignore it or don’t have a concept of
|
||
* “keep above”; so you can’t rely on the window being kept above.
|
||
* But it will happen with most standard window managers,
|
||
* and GDK makes a best effort to get it to happen.
|
||
**/
|
||
void
|
||
gdk_window_set_keep_above (GdkWindow *window,
|
||
gboolean setting)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_keep_above (window, setting);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_keep_below:
|
||
* @window: a toplevel #GdkWindow
|
||
* @setting: whether to keep @window below other windows
|
||
*
|
||
* Set if @window must be kept below other windows. If the
|
||
* window was already below, then this function does nothing.
|
||
*
|
||
* On X11, asks the window manager to keep @window below, if the window
|
||
* manager supports this operation. Not all window managers support
|
||
* this, and some deliberately ignore it or don’t have a concept of
|
||
* “keep below”; so you can’t rely on the window being kept below.
|
||
* But it will happen with most standard window managers,
|
||
* and GDK makes a best effort to get it to happen.
|
||
**/
|
||
void
|
||
gdk_window_set_keep_below (GdkWindow *window, gboolean setting)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_keep_below (window, setting);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_group:
|
||
* @window: a toplevel #GdkWindow
|
||
*
|
||
* Returns the group leader window for @window. See gdk_window_set_group().
|
||
*
|
||
* Returns: (transfer none): the group leader window for @window
|
||
**/
|
||
GdkWindow *
|
||
gdk_window_get_group (GdkWindow *window)
|
||
{
|
||
return GDK_WINDOW_IMPL_GET_CLASS (window->impl)->get_group (window);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_group:
|
||
* @window: a toplevel #GdkWindow
|
||
* @leader: (allow-none): group leader window, or %NULL to restore the default group leader window
|
||
*
|
||
* Sets the group leader window for @window. By default,
|
||
* GDK sets the group leader for all toplevel windows
|
||
* to a global window implicitly created by GDK. With this function
|
||
* you can override this default.
|
||
*
|
||
* The group leader window allows the window manager to distinguish
|
||
* all windows that belong to a single application. It may for example
|
||
* allow users to minimize/unminimize all windows belonging to an
|
||
* application at once. You should only set a non-default group window
|
||
* if your application pretends to be multiple applications.
|
||
**/
|
||
void
|
||
gdk_window_set_group (GdkWindow *window,
|
||
GdkWindow *leader)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_group (window, leader);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_decorations:
|
||
* @window: a toplevel #GdkWindow
|
||
* @decorations: decoration hint mask
|
||
*
|
||
* “Decorations” are the features the window manager adds to a toplevel #GdkWindow.
|
||
* This function sets the traditional Motif window manager hints that tell the
|
||
* window manager which decorations you would like your window to have.
|
||
* Usually you should use gtk_window_set_decorated() on a #GtkWindow instead of
|
||
* using the GDK function directly.
|
||
*
|
||
* The @decorations argument is the logical OR of the fields in
|
||
* the #GdkWMDecoration enumeration. If #GDK_DECOR_ALL is included in the
|
||
* mask, the other bits indicate which decorations should be turned off.
|
||
* If #GDK_DECOR_ALL is not included, then the other bits indicate
|
||
* which decorations should be turned on.
|
||
*
|
||
* Most window managers honor a decorations hint of 0 to disable all decorations,
|
||
* but very few honor all possible combinations of bits.
|
||
*
|
||
**/
|
||
void
|
||
gdk_window_set_decorations (GdkWindow *window,
|
||
GdkWMDecoration decorations)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_decorations (window, decorations);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_decorations:
|
||
* @window: The toplevel #GdkWindow to get the decorations from
|
||
* @decorations: (out): The window decorations will be written here
|
||
*
|
||
* Returns the decorations set on the GdkWindow with
|
||
* gdk_window_set_decorations().
|
||
*
|
||
* Returns: %TRUE if the window has decorations set, %FALSE otherwise.
|
||
**/
|
||
gboolean
|
||
gdk_window_get_decorations(GdkWindow *window,
|
||
GdkWMDecoration *decorations)
|
||
{
|
||
return GDK_WINDOW_IMPL_GET_CLASS (window->impl)->get_decorations (window, decorations);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_functions:
|
||
* @window: a toplevel #GdkWindow
|
||
* @functions: bitmask of operations to allow on @window
|
||
*
|
||
* Sets hints about the window management functions to make available
|
||
* via buttons on the window frame.
|
||
*
|
||
* On the X backend, this function sets the traditional Motif window
|
||
* manager hint for this purpose. However, few window managers do
|
||
* anything reliable or interesting with this hint. Many ignore it
|
||
* entirely.
|
||
*
|
||
* The @functions argument is the logical OR of values from the
|
||
* #GdkWMFunction enumeration. If the bitmask includes #GDK_FUNC_ALL,
|
||
* then the other bits indicate which functions to disable; if
|
||
* it doesn’t include #GDK_FUNC_ALL, it indicates which functions to
|
||
* enable.
|
||
*
|
||
**/
|
||
void
|
||
gdk_window_set_functions (GdkWindow *window,
|
||
GdkWMFunction functions)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_functions (window, functions);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_begin_resize_drag_for_device:
|
||
* @window: a toplevel #GdkWindow
|
||
* @edge: the edge or corner from which the drag is started
|
||
* @device: the device used for the operation
|
||
* @button: the button being used to drag, or 0 for a keyboard-initiated drag
|
||
* @root_x: root window X coordinate of mouse click that began the drag
|
||
* @root_y: root window Y coordinate of mouse click that began the drag
|
||
* @timestamp: timestamp of mouse click that began the drag (use gdk_event_get_time())
|
||
*
|
||
* Begins a window resize operation (for a toplevel window).
|
||
* You might use this function to implement a “window resize grip,” for
|
||
* example; in fact #GtkStatusbar uses it. The function works best
|
||
* with window managers that support the
|
||
* [Extended Window Manager Hints](http://www.freedesktop.org/Standards/wm-spec)
|
||
* but has a fallback implementation for other window managers.
|
||
*/
|
||
void
|
||
gdk_window_begin_resize_drag_for_device (GdkWindow *window,
|
||
GdkWindowEdge edge,
|
||
GdkDevice *device,
|
||
gint button,
|
||
gint root_x,
|
||
gint root_y,
|
||
guint32 timestamp)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->begin_resize_drag (window, edge, device, button, root_x, root_y, timestamp);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_begin_resize_drag:
|
||
* @window: a toplevel #GdkWindow
|
||
* @edge: the edge or corner from which the drag is started
|
||
* @button: the button being used to drag, or 0 for a keyboard-initiated drag
|
||
* @root_x: root window X coordinate of mouse click that began the drag
|
||
* @root_y: root window Y coordinate of mouse click that began the drag
|
||
* @timestamp: timestamp of mouse click that began the drag (use gdk_event_get_time())
|
||
*
|
||
* Begins a window resize operation (for a toplevel window).
|
||
*
|
||
* This function assumes that the drag is controlled by the
|
||
* client pointer device, use gdk_window_begin_resize_drag_for_device()
|
||
* to begin a drag with a different device.
|
||
*/
|
||
void
|
||
gdk_window_begin_resize_drag (GdkWindow *window,
|
||
GdkWindowEdge edge,
|
||
gint button,
|
||
gint root_x,
|
||
gint root_y,
|
||
guint32 timestamp)
|
||
{
|
||
GdkDisplay *display;
|
||
GdkDevice *device;
|
||
|
||
display = gdk_window_get_display (window);
|
||
device = gdk_seat_get_pointer (gdk_display_get_default_seat (display));
|
||
gdk_window_begin_resize_drag_for_device (window, edge,
|
||
device, button, root_x, root_y, timestamp);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_begin_move_drag_for_device:
|
||
* @window: a toplevel #GdkWindow
|
||
* @device: the device used for the operation
|
||
* @button: the button being used to drag, or 0 for a keyboard-initiated drag
|
||
* @root_x: root window X coordinate of mouse click that began the drag
|
||
* @root_y: root window Y coordinate of mouse click that began the drag
|
||
* @timestamp: timestamp of mouse click that began the drag
|
||
*
|
||
* Begins a window move operation (for a toplevel window).
|
||
* You might use this function to implement a “window move grip,” for
|
||
* example. The function works best with window managers that support the
|
||
* [Extended Window Manager Hints](http://www.freedesktop.org/Standards/wm-spec)
|
||
* but has a fallback implementation for other window managers.
|
||
*/
|
||
void
|
||
gdk_window_begin_move_drag_for_device (GdkWindow *window,
|
||
GdkDevice *device,
|
||
gint button,
|
||
gint root_x,
|
||
gint root_y,
|
||
guint32 timestamp)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->begin_move_drag (window,
|
||
device, button, root_x, root_y, timestamp);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_begin_move_drag:
|
||
* @window: a toplevel #GdkWindow
|
||
* @button: the button being used to drag, or 0 for a keyboard-initiated drag
|
||
* @root_x: root window X coordinate of mouse click that began the drag
|
||
* @root_y: root window Y coordinate of mouse click that began the drag
|
||
* @timestamp: timestamp of mouse click that began the drag
|
||
*
|
||
* Begins a window move operation (for a toplevel window).
|
||
*
|
||
* This function assumes that the drag is controlled by the
|
||
* client pointer device, use gdk_window_begin_move_drag_for_device()
|
||
* to begin a drag with a different device.
|
||
*/
|
||
void
|
||
gdk_window_begin_move_drag (GdkWindow *window,
|
||
gint button,
|
||
gint root_x,
|
||
gint root_y,
|
||
guint32 timestamp)
|
||
{
|
||
GdkDisplay *display;
|
||
GdkDevice *device;
|
||
|
||
display = gdk_window_get_display (window);
|
||
device = gdk_seat_get_pointer (gdk_display_get_default_seat (display));
|
||
gdk_window_begin_move_drag_for_device (window, device, button, root_x, root_y, timestamp);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_opacity:
|
||
* @window: a top-level or non-native #GdkWindow
|
||
* @opacity: opacity
|
||
*
|
||
* Set @window to render as partially transparent,
|
||
* with opacity 0 being fully transparent and 1 fully opaque. (Values
|
||
* of the opacity parameter are clamped to the [0,1] range.)
|
||
*
|
||
* For toplevel windows this depends on support from the windowing system
|
||
* that may not always be there. For instance, On X11, this works only on
|
||
* X screens with a compositing manager running. On Wayland, there is no
|
||
* per-window opacity value that the compositor would apply. Instead, use
|
||
* `gdk_window_set_opaque_region (window, NULL)` to tell the compositor
|
||
* that the entire window is (potentially) non-opaque, and draw your content
|
||
* with alpha, or use gtk_widget_set_opacity() to set an overall opacity
|
||
* for your widgets.
|
||
*
|
||
* Support for non-toplevel windows was added in 3.8.
|
||
*/
|
||
void
|
||
gdk_window_set_opacity (GdkWindow *window,
|
||
gdouble opacity)
|
||
{
|
||
if (opacity < 0)
|
||
opacity = 0;
|
||
else if (opacity > 1)
|
||
opacity = 1;
|
||
|
||
window->alpha = round (opacity * 255);
|
||
|
||
if (window->destroyed)
|
||
return;
|
||
|
||
if (gdk_window_has_impl (window))
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->set_opacity (window, opacity);
|
||
else
|
||
{
|
||
recompute_visible_regions (window, FALSE);
|
||
gdk_window_invalidate_rect_full (window, NULL, TRUE);
|
||
}
|
||
}
|
||
|
||
/* This function is called when the XWindow is really gone.
|
||
*/
|
||
void
|
||
gdk_window_destroy_notify (GdkWindow *window)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->destroy_notify (window);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_register_dnd:
|
||
* @window: a #GdkWindow.
|
||
*
|
||
* Registers a window as a potential drop destination.
|
||
*/
|
||
void
|
||
gdk_window_register_dnd (GdkWindow *window)
|
||
{
|
||
GDK_WINDOW_IMPL_GET_CLASS (window->impl)->register_dnd (window);
|
||
}
|
||
|
||
/**
|
||
* gdk_drag_begin:
|
||
* @window: the source window for this drag
|
||
* @device: the device that controls this drag
|
||
* @content: (transfer none): the offered content
|
||
* @actions: the actions supported by this drag
|
||
* @dx: the x offset to @device's position where the drag nominally started
|
||
* @dy: the y offset to @device's position where the drag nominally started
|
||
*
|
||
* Starts a drag and creates a new drag context for it.
|
||
*
|
||
* This function is called by the drag source.
|
||
*
|
||
* Returns: (transfer full) (nullable): a newly created #GdkDragContext or
|
||
* %NULL on error.
|
||
*/
|
||
GdkDragContext *
|
||
gdk_drag_begin (GdkWindow *window,
|
||
GdkDevice *device,
|
||
GdkContentProvider *content,
|
||
GdkDragAction actions,
|
||
gint dx,
|
||
gint dy)
|
||
{
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
||
g_return_val_if_fail (GDK_IS_DEVICE (device), NULL);
|
||
g_return_val_if_fail (gdk_window_get_display (window) == gdk_device_get_display (device), NULL);
|
||
g_return_val_if_fail (GDK_IS_CONTENT_PROVIDER (content), NULL);
|
||
|
||
return GDK_WINDOW_IMPL_GET_CLASS (window->impl)->drag_begin (window, device, content, actions, dx, dy);
|
||
}
|
||
|
||
static void
|
||
gdk_window_flush_events (GdkFrameClock *clock,
|
||
void *data)
|
||
{
|
||
GdkWindow *window;
|
||
GdkDisplay *display;
|
||
|
||
window = GDK_WINDOW (data);
|
||
|
||
display = gdk_window_get_display (window);
|
||
_gdk_event_queue_flush (display);
|
||
_gdk_display_pause_events (display);
|
||
|
||
gdk_frame_clock_request_phase (clock, GDK_FRAME_CLOCK_PHASE_RESUME_EVENTS);
|
||
|
||
window->frame_clock_events_paused = TRUE;
|
||
}
|
||
|
||
static void
|
||
gdk_window_resume_events (GdkFrameClock *clock,
|
||
void *data)
|
||
{
|
||
GdkWindow *window;
|
||
GdkDisplay *display;
|
||
|
||
window = GDK_WINDOW (data);
|
||
|
||
display = gdk_window_get_display (window);
|
||
_gdk_display_unpause_events (display);
|
||
|
||
window->frame_clock_events_paused = FALSE;
|
||
}
|
||
|
||
static void
|
||
gdk_window_set_frame_clock (GdkWindow *window,
|
||
GdkFrameClock *clock)
|
||
{
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
g_return_if_fail (clock == NULL || GDK_IS_FRAME_CLOCK (clock));
|
||
g_return_if_fail (clock == NULL || gdk_window_is_toplevel (window));
|
||
|
||
if (clock == window->frame_clock)
|
||
return;
|
||
|
||
if (clock)
|
||
{
|
||
g_object_ref (clock);
|
||
g_signal_connect (G_OBJECT (clock),
|
||
"flush-events",
|
||
G_CALLBACK (gdk_window_flush_events),
|
||
window);
|
||
g_signal_connect (G_OBJECT (clock),
|
||
"paint",
|
||
G_CALLBACK (gdk_window_paint_on_clock),
|
||
window);
|
||
g_signal_connect (G_OBJECT (clock),
|
||
"resume-events",
|
||
G_CALLBACK (gdk_window_resume_events),
|
||
window);
|
||
}
|
||
|
||
if (window->frame_clock)
|
||
{
|
||
if (window->frame_clock_events_paused)
|
||
gdk_window_resume_events (window->frame_clock, G_OBJECT (window));
|
||
|
||
g_signal_handlers_disconnect_by_func (G_OBJECT (window->frame_clock),
|
||
G_CALLBACK (gdk_window_flush_events),
|
||
window);
|
||
g_signal_handlers_disconnect_by_func (G_OBJECT (window->frame_clock),
|
||
G_CALLBACK (gdk_window_paint_on_clock),
|
||
window);
|
||
g_signal_handlers_disconnect_by_func (G_OBJECT (window->frame_clock),
|
||
G_CALLBACK (gdk_window_resume_events),
|
||
window);
|
||
g_object_unref (window->frame_clock);
|
||
}
|
||
|
||
window->frame_clock = clock;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_frame_clock:
|
||
* @window: window to get frame clock for
|
||
*
|
||
* Gets the frame clock for the window. The frame clock for a window
|
||
* never changes unless the window is reparented to a new toplevel
|
||
* window.
|
||
*
|
||
* Returns: (transfer none): the frame clock
|
||
*/
|
||
GdkFrameClock*
|
||
gdk_window_get_frame_clock (GdkWindow *window)
|
||
{
|
||
GdkWindow *toplevel;
|
||
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
|
||
|
||
toplevel = gdk_window_get_toplevel (window);
|
||
|
||
return toplevel->frame_clock;
|
||
}
|
||
|
||
/**
|
||
* gdk_window_get_scale_factor:
|
||
* @window: window to get scale factor for
|
||
*
|
||
* Returns the internal scale factor that maps from window coordiantes
|
||
* to the actual device pixels. On traditional systems this is 1, but
|
||
* on very high density outputs this can be a higher value (often 2).
|
||
*
|
||
* A higher value means that drawing is automatically scaled up to
|
||
* a higher resolution, so any code doing drawing will automatically look
|
||
* nicer. However, if you are supplying pixel-based data the scale
|
||
* value can be used to determine whether to use a pixel resource
|
||
* with higher resolution data.
|
||
*
|
||
* The scale of a window may change during runtime, if this happens
|
||
* a configure event will be sent to the toplevel window.
|
||
*
|
||
* Returns: the scale factor
|
||
*/
|
||
gint
|
||
gdk_window_get_scale_factor (GdkWindow *window)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), 1);
|
||
|
||
if (GDK_WINDOW_DESTROYED (window))
|
||
return 1;
|
||
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
|
||
if (impl_class->get_scale_factor)
|
||
return impl_class->get_scale_factor (window);
|
||
|
||
return 1;
|
||
}
|
||
|
||
/* Returns the *real* unscaled size, which may be a fractional size
|
||
in window scale coordinates. We need this to properly handle GL
|
||
coordinates which are y-flipped in the real coordinates. */
|
||
void
|
||
gdk_window_get_unscaled_size (GdkWindow *window,
|
||
int *unscaled_width,
|
||
int *unscaled_height)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
gint scale;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (window->impl_window == window)
|
||
{
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
|
||
if (impl_class->get_unscaled_size)
|
||
{
|
||
impl_class->get_unscaled_size (window, unscaled_width, unscaled_height);
|
||
return;
|
||
}
|
||
}
|
||
|
||
scale = gdk_window_get_scale_factor (window);
|
||
|
||
if (unscaled_width)
|
||
*unscaled_width = window->width * scale;
|
||
|
||
if (unscaled_height)
|
||
*unscaled_height = window->height * scale;
|
||
}
|
||
|
||
|
||
/**
|
||
* gdk_window_set_opaque_region:
|
||
* @window: a top-level or non-native #GdkWindow
|
||
* @region: (allow-none): a region, or %NULL
|
||
*
|
||
* For optimisation purposes, compositing window managers may
|
||
* like to not draw obscured regions of windows, or turn off blending
|
||
* during for these regions. With RGB windows with no transparency,
|
||
* this is just the shape of the window, but with ARGB32 windows, the
|
||
* compositor does not know what regions of the window are transparent
|
||
* or not.
|
||
*
|
||
* This function only works for toplevel windows.
|
||
*
|
||
* GTK+ will update this property automatically if
|
||
* the @window background is opaque, as we know where the opaque regions
|
||
* are. If your window background is not opaque, please update this
|
||
* property in your #GtkWidget::style-updated handler.
|
||
*/
|
||
void
|
||
gdk_window_set_opaque_region (GdkWindow *window,
|
||
cairo_region_t *region)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
g_return_if_fail (!GDK_WINDOW_DESTROYED (window));
|
||
|
||
if (cairo_region_equal (window->opaque_region, region))
|
||
return;
|
||
|
||
g_clear_pointer (&window->opaque_region, cairo_region_destroy);
|
||
|
||
if (region != NULL)
|
||
window->opaque_region = cairo_region_reference (region);
|
||
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
|
||
if (impl_class->set_opaque_region)
|
||
impl_class->set_opaque_region (window, region);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_set_shadow_width:
|
||
* @window: a #GdkWindow
|
||
* @left: The left extent
|
||
* @right: The right extent
|
||
* @top: The top extent
|
||
* @bottom: The bottom extent
|
||
*
|
||
* Newer GTK+ windows using client-side decorations use extra geometry
|
||
* around their frames for effects like shadows and invisible borders.
|
||
* Window managers that want to maximize windows or snap to edges need
|
||
* to know where the extents of the actual frame lie, so that users
|
||
* don’t feel like windows are snapping against random invisible edges.
|
||
*
|
||
* Note that this property is automatically updated by GTK+, so this
|
||
* function should only be used by applications which do not use GTK+
|
||
* to create toplevel windows.
|
||
*/
|
||
void
|
||
gdk_window_set_shadow_width (GdkWindow *window,
|
||
gint left,
|
||
gint right,
|
||
gint top,
|
||
gint bottom)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
g_return_if_fail (!GDK_WINDOW_DESTROYED (window));
|
||
g_return_if_fail (left >= 0 && right >= 0 && top >= 0 && bottom >= 0);
|
||
|
||
window->shadow_top = top;
|
||
window->shadow_left = left;
|
||
window->shadow_right = right;
|
||
window->shadow_bottom = bottom;
|
||
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
|
||
if (impl_class->set_shadow_width)
|
||
impl_class->set_shadow_width (window, left, right, top, bottom);
|
||
}
|
||
|
||
/**
|
||
* gdk_window_show_window_menu:
|
||
* @window: a #GdkWindow
|
||
* @event: a #GdkEvent to show the menu for
|
||
*
|
||
* Asks the windowing system to show the window menu. The window menu
|
||
* is the menu shown when right-clicking the titlebar on traditional
|
||
* windows managed by the window manager. This is useful for windows
|
||
* using client-side decorations, activating it with a right-click
|
||
* on the window decorations.
|
||
*
|
||
* Returns: %TRUE if the window menu was shown and %FALSE otherwise.
|
||
*/
|
||
gboolean
|
||
gdk_window_show_window_menu (GdkWindow *window,
|
||
GdkEvent *event)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
||
g_return_val_if_fail (!GDK_WINDOW_DESTROYED (window), FALSE);
|
||
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
|
||
if (impl_class->show_window_menu)
|
||
return impl_class->show_window_menu (window, event);
|
||
else
|
||
return FALSE;
|
||
}
|
||
|
||
gboolean
|
||
gdk_window_supports_edge_constraints (GdkWindow *window)
|
||
{
|
||
GdkWindowImplClass *impl_class;
|
||
|
||
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
|
||
g_return_val_if_fail (!GDK_WINDOW_DESTROYED (window), FALSE);
|
||
|
||
impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
|
||
|
||
if (impl_class->supports_edge_constraints)
|
||
return impl_class->supports_edge_constraints (window);
|
||
else
|
||
return FALSE;
|
||
}
|
||
|
||
void
|
||
gdk_window_set_state (GdkWindow *window,
|
||
GdkWindowState new_state)
|
||
{
|
||
g_return_if_fail (GDK_IS_WINDOW (window));
|
||
|
||
if (new_state == window->state)
|
||
return; /* No actual work to do, nothing changed. */
|
||
|
||
/* Actually update the field in GdkWindow, this is sort of an odd
|
||
* place to do it, but seems like the safest since it ensures we expose no
|
||
* inconsistent state to the user.
|
||
*/
|
||
|
||
window->state = new_state;
|
||
|
||
_gdk_window_update_viewable (window);
|
||
|
||
/* We only really send the event to toplevels, since
|
||
* all the window states don't apply to non-toplevels.
|
||
* Non-toplevels do use the GDK_WINDOW_STATE_WITHDRAWN flag
|
||
* internally so we needed to update window->state.
|
||
*/
|
||
switch (window->window_type)
|
||
{
|
||
case GDK_WINDOW_TOPLEVEL:
|
||
case GDK_WINDOW_TEMP: /* ? */
|
||
g_object_notify (G_OBJECT (window), "state");
|
||
break;
|
||
case GDK_WINDOW_FOREIGN:
|
||
case GDK_WINDOW_ROOT:
|
||
case GDK_WINDOW_CHILD:
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
|
||
void
|
||
gdk_synthesize_window_state (GdkWindow *window,
|
||
GdkWindowState unset_flags,
|
||
GdkWindowState set_flags)
|
||
{
|
||
gdk_window_set_state (window, (window->state | set_flags) & ~unset_flags);
|
||
}
|