forked from AuroraMiddleware/gtk
5afb4f0f11
2006-03-08 Michael Natterer <mitch@imendio.com> * gdk/gdkscreen.h * gdk/x11/gdkscreen-x11.c * gdk/gdk.symbols: added gdk_screen_get_active_window() and gdk_screen_get_window_stack() (patch from maemo-gtk). Fixes bug #320881. * gdk/directfb/gdkscreen-directfb.c * gdk/quartz/gdkscreen-quartz.c * gdk/win32/gdkscreen-win32.c: added the functions as stubs.
940 lines
24 KiB
C
940 lines
24 KiB
C
/*
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* gdkscreen-x11.c
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*
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* Copyright 2001 Sun Microsystems Inc.
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*
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* Erwann Chenede <erwann.chenede@sun.com>
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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 Library 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <config.h>
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#include <stdlib.h>
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#include <string.h>
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#include <glib.h>
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#include "gdkscreen.h"
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#include "gdkscreen-x11.h"
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#include "gdkdisplay.h"
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#include "gdkdisplay-x11.h"
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#include "gdkx.h"
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#include "gdkalias.h"
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#include <X11/Xatom.h>
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#ifdef HAVE_SOLARIS_XINERAMA
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#include <X11/extensions/xinerama.h>
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#endif
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#ifdef HAVE_XFREE_XINERAMA
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#include <X11/extensions/Xinerama.h>
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#endif
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#ifdef HAVE_RANDR
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#include <X11/extensions/Xrandr.h>
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#endif
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static void gdk_screen_x11_class_init (GdkScreenX11Class *klass);
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static void gdk_screen_x11_dispose (GObject *object);
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static void gdk_screen_x11_finalize (GObject *object);
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static void init_xinerama_support (GdkScreen *screen);
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static void init_randr_support (GdkScreen *screen);
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enum
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{
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WINDOW_MANAGER_CHANGED,
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LAST_SIGNAL
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};
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static gpointer parent_class = NULL;
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static guint signals[LAST_SIGNAL] = { 0 };
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GType
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_gdk_screen_x11_get_type (void)
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{
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static GType object_type = 0;
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if (!object_type)
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{
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static const GTypeInfo object_info =
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{
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sizeof (GdkScreenX11Class),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) gdk_screen_x11_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GdkScreenX11),
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0, /* n_preallocs */
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(GInstanceInitFunc) NULL,
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};
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object_type = g_type_register_static (GDK_TYPE_SCREEN,
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g_intern_static_string ("GdkScreenX11"),
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&object_info, 0);
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}
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return object_type;
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}
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static void
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gdk_screen_x11_class_init (GdkScreenX11Class *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->dispose = gdk_screen_x11_dispose;
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object_class->finalize = gdk_screen_x11_finalize;
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parent_class = g_type_class_peek_parent (klass);
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signals[WINDOW_MANAGER_CHANGED] =
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g_signal_new (g_intern_static_string ("window_manager_changed"),
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G_OBJECT_CLASS_TYPE (object_class),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GdkScreenX11Class, window_manager_changed),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE,
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0);
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}
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/**
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* gdk_screen_get_display:
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* @screen: a #GdkScreen
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*
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* Gets the display to which the @screen belongs.
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*
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* Returns: the display to which @screen belongs
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*
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* Since: 2.2
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**/
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GdkDisplay *
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gdk_screen_get_display (GdkScreen *screen)
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{
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g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
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return GDK_SCREEN_X11 (screen)->display;
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}
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/**
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* gdk_screen_get_width:
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* @screen: a #GdkScreen
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*
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* Gets the width of @screen in pixels
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*
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* Returns: the width of @screen in pixels.
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*
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* Since: 2.2
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**/
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gint
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gdk_screen_get_width (GdkScreen *screen)
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{
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g_return_val_if_fail (GDK_IS_SCREEN (screen), 0);
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return WidthOfScreen (GDK_SCREEN_X11 (screen)->xscreen);
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}
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/**
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* gdk_screen_get_height:
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* @screen: a #GdkScreen
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*
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* Gets the height of @screen in pixels
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*
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* Returns: the height of @screen in pixels.
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*
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* Since: 2.2
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**/
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gint
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gdk_screen_get_height (GdkScreen *screen)
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{
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g_return_val_if_fail (GDK_IS_SCREEN (screen), 0);
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return HeightOfScreen (GDK_SCREEN_X11 (screen)->xscreen);
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}
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/**
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* gdk_screen_get_width_mm:
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* @screen: a #GdkScreen
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*
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* Gets the width of @screen in millimeters.
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* Note that on some X servers this value will not be correct.
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*
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* Returns: the width of @screen in millimeters.
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*
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* Since: 2.2
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**/
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gint
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gdk_screen_get_width_mm (GdkScreen *screen)
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{
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g_return_val_if_fail (GDK_IS_SCREEN (screen), 0);
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return WidthMMOfScreen (GDK_SCREEN_X11 (screen)->xscreen);
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}
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/**
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* gdk_screen_get_height_mm:
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* @screen: a #GdkScreen
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*
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* Returns the height of @screen in millimeters.
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* Note that on some X servers this value will not be correct.
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*
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* Returns: the heigth of @screen in millimeters.
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*
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* Since: 2.2
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**/
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gint
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gdk_screen_get_height_mm (GdkScreen *screen)
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{
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g_return_val_if_fail (GDK_IS_SCREEN (screen), 0);
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return HeightMMOfScreen (GDK_SCREEN_X11 (screen)->xscreen);
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}
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/**
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* gdk_screen_get_number:
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* @screen: a #GdkScreen
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*
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* Gets the index of @screen among the screens in the display
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* to which it belongs. (See gdk_screen_get_display())
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*
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* Returns: the index
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*
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* Since: 2.2
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**/
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gint
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gdk_screen_get_number (GdkScreen *screen)
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{
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g_return_val_if_fail (GDK_IS_SCREEN (screen), 0);
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return GDK_SCREEN_X11 (screen)->screen_num;
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}
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/**
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* gdk_screen_get_root_window:
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* @screen: a #GdkScreen
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*
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* Gets the root window of @screen.
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*
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* Returns: the root window
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*
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* Since: 2.2
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**/
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GdkWindow *
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gdk_screen_get_root_window (GdkScreen *screen)
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{
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g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
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return GDK_SCREEN_X11 (screen)->root_window;
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}
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/**
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* gdk_screen_get_default_colormap:
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* @screen: a #GdkScreen
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*
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* Gets the default colormap for @screen.
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*
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* Returns: the default #GdkColormap.
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*
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* Since: 2.2
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**/
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GdkColormap *
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gdk_screen_get_default_colormap (GdkScreen *screen)
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{
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g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
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return GDK_SCREEN_X11 (screen)->default_colormap;
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}
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/**
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* gdk_screen_set_default_colormap:
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* @screen: a #GdkScreen
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* @colormap: a #GdkColormap
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*
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* Sets the default @colormap for @screen.
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*
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* Since: 2.2
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**/
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void
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gdk_screen_set_default_colormap (GdkScreen *screen,
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GdkColormap *colormap)
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{
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GdkColormap *old_colormap;
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g_return_if_fail (GDK_IS_SCREEN (screen));
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g_return_if_fail (GDK_IS_COLORMAP (colormap));
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old_colormap = GDK_SCREEN_X11 (screen)->default_colormap;
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GDK_SCREEN_X11 (screen)->default_colormap = g_object_ref (colormap);
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if (old_colormap)
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g_object_unref (old_colormap);
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}
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static void
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gdk_screen_x11_dispose (GObject *object)
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{
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GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (object);
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_gdk_x11_events_uninit_screen (GDK_SCREEN (object));
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if (screen_x11->default_colormap)
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{
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g_object_unref (screen_x11->default_colormap);
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screen_x11->default_colormap = NULL;
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}
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if (screen_x11->system_colormap)
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{
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g_object_unref (screen_x11->system_colormap);
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screen_x11->system_colormap = NULL;
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}
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if (screen_x11->rgba_colormap)
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{
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g_object_unref (screen_x11->rgba_colormap);
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screen_x11->rgba_colormap = NULL;
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}
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if (screen_x11->root_window)
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_gdk_window_destroy (screen_x11->root_window, TRUE);
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G_OBJECT_CLASS (parent_class)->dispose (object);
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screen_x11->xdisplay = NULL;
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screen_x11->xscreen = NULL;
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screen_x11->screen_num = -1;
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screen_x11->xroot_window = None;
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screen_x11->wmspec_check_window = None;
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}
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static void
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gdk_screen_x11_finalize (GObject *object)
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{
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GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (object);
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gint i;
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if (screen_x11->root_window)
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g_object_unref (screen_x11->root_window);
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if (screen_x11->renderer)
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g_object_unref (screen_x11->renderer);
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/* Visual Part */
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for (i = 0; i < screen_x11->nvisuals; i++)
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g_object_unref (screen_x11->visuals[i]);
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g_free (screen_x11->visuals);
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g_hash_table_destroy (screen_x11->visual_hash);
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g_free (screen_x11->window_manager_name);
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g_hash_table_destroy (screen_x11->colormap_hash);
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g_free (screen_x11->monitors);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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/**
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* gdk_screen_get_n_monitors:
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* @screen: a #GdkScreen.
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*
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* Returns the number of monitors which @screen consists of.
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*
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* Returns: number of monitors which @screen consists of.
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*
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* Since: 2.2
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**/
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gint
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gdk_screen_get_n_monitors (GdkScreen *screen)
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{
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g_return_val_if_fail (GDK_IS_SCREEN (screen), 0);
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return GDK_SCREEN_X11 (screen)->num_monitors;
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}
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/**
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* gdk_screen_get_monitor_geometry:
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* @screen : a #GdkScreen.
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* @monitor_num: the monitor number.
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* @dest : a #GdkRectangle to be filled with the monitor geometry
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*
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* Retrieves the #GdkRectangle representing the size and position of
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* the individual monitor within the entire screen area.
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*
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* Note that the size of the entire screen area can be retrieved via
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* gdk_screen_get_width() and gdk_screen_get_height().
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*
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* Since: 2.2
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**/
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void
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gdk_screen_get_monitor_geometry (GdkScreen *screen,
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gint monitor_num,
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GdkRectangle *dest)
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{
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g_return_if_fail (GDK_IS_SCREEN (screen));
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g_return_if_fail (monitor_num < GDK_SCREEN_X11 (screen)->num_monitors);
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g_return_if_fail (monitor_num >= 0);
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*dest = GDK_SCREEN_X11 (screen)->monitors[monitor_num];
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}
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/**
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* gdk_screen_get_rgba_colormap:
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* @screen: a #GdkScreen.
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*
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* Gets a colormap to use for creating windows or pixmaps with an
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* alpha channel. The windowing system on which GTK+ is running
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* may not support this capability, in which case %NULL will
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* be returned. Even if a non-%NULL value is returned, its
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* possible that the window's alpha channel won't be honored
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* when displaying the window on the screen: in particular, for
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* X an appropriate windowing manager and compositing manager
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* must be running to provide appropriate display.
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*
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* Return value: a colormap to use for windows with an alpha channel
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* or %NULL if the capability is not available.
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*
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* Since: 2.8
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**/
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GdkColormap *
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gdk_screen_get_rgba_colormap (GdkScreen *screen)
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{
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GdkScreenX11 *screen_x11;
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g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
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screen_x11 = GDK_SCREEN_X11 (screen);
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if (!screen_x11->rgba_visual)
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return NULL;
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if (!screen_x11->rgba_colormap)
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screen_x11->rgba_colormap = gdk_colormap_new (screen_x11->rgba_visual,
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FALSE);
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return screen_x11->rgba_colormap;
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}
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/**
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* gdk_screen_get_rgba_visual:
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* @screen: a #GdkScreen
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*
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* Gets a visual to use for creating windows or pixmaps with an
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* alpha channel. See the docs for gdk_screen_get_rgba_colormap()
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* for caveats.
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*
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* Return value: a visual to use for windows with an alpha channel
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* or %NULL if the capability is not available.
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*
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* Since: 2.8
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**/
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GdkVisual *
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gdk_screen_get_rgba_visual (GdkScreen *screen)
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{
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GdkScreenX11 *screen_x11;
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g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
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screen_x11 = GDK_SCREEN_X11 (screen);
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return screen_x11->rgba_visual;
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}
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/**
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* gdk_x11_screen_get_xscreen:
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* @screen: a #GdkScreen.
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* @returns: an Xlib <type>Screen*</type>
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*
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* Returns the screen of a #GdkScreen.
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*
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* Since: 2.2
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*/
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Screen *
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gdk_x11_screen_get_xscreen (GdkScreen *screen)
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{
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return GDK_SCREEN_X11 (screen)->xscreen;
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}
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/**
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* gdk_x11_screen_get_screen_number:
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* @screen: a #GdkScreen.
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* @returns: the position of @screen among the screens of
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* its display.
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*
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* Returns the index of a #GdkScreen.
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*
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* Since: 2.2
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*/
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int
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gdk_x11_screen_get_screen_number (GdkScreen *screen)
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{
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return GDK_SCREEN_X11 (screen)->screen_num;
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}
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GdkScreen *
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_gdk_x11_screen_new (GdkDisplay *display,
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gint screen_number)
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{
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GdkScreen *screen;
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GdkScreenX11 *screen_x11;
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GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
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screen = g_object_new (GDK_TYPE_SCREEN_X11, NULL);
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screen_x11 = GDK_SCREEN_X11 (screen);
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screen_x11->display = display;
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screen_x11->xdisplay = display_x11->xdisplay;
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screen_x11->xscreen = ScreenOfDisplay (display_x11->xdisplay, screen_number);
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screen_x11->screen_num = screen_number;
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screen_x11->xroot_window = RootWindow (display_x11->xdisplay,screen_number);
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screen_x11->wmspec_check_window = None;
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/* we want this to be always non-null */
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screen_x11->window_manager_name = g_strdup ("unknown");
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init_xinerama_support (screen);
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init_randr_support (screen);
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_gdk_visual_init (screen);
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_gdk_windowing_window_init (screen);
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return screen;
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}
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#ifdef HAVE_XINERAMA
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static gboolean
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check_solaris_xinerama (GdkScreen *screen)
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{
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#ifdef HAVE_SOLARIS_XINERAMA
|
|
|
|
if (XineramaGetState (GDK_SCREEN_XDISPLAY (screen),
|
|
gdk_screen_get_number (screen)))
|
|
{
|
|
XRectangle monitors[MAXFRAMEBUFFERS];
|
|
unsigned char hints[16];
|
|
gint result;
|
|
GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (screen);
|
|
|
|
result = XineramaGetInfo (GDK_SCREEN_XDISPLAY (screen),
|
|
gdk_screen_get_number (screen),
|
|
monitors, hints,
|
|
&screen_x11->num_monitors);
|
|
/* Yes I know it should be Success but the current implementation
|
|
returns the num of monitor*/
|
|
if (result == 0)
|
|
{
|
|
/* FIXME: We need to trap errors, since XINERAMA isn't always XINERAMA.
|
|
*/
|
|
g_error ("error while retrieving Xinerama information");
|
|
}
|
|
else
|
|
{
|
|
int i;
|
|
screen_x11->monitors = g_new0 (GdkRectangle, screen_x11->num_monitors);
|
|
|
|
for (i = 0; i < screen_x11->num_monitors; i++)
|
|
{
|
|
screen_x11->monitors[i].x = monitors[i].x;
|
|
screen_x11->monitors[i].y = monitors[i].y;
|
|
screen_x11->monitors[i].width = monitors[i].width;
|
|
screen_x11->monitors[i].height = monitors[i].height;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
}
|
|
#endif /* HAVE_SOLARIS_XINERAMA */
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
check_xfree_xinerama (GdkScreen *screen)
|
|
{
|
|
#ifdef HAVE_XFREE_XINERAMA
|
|
if (XineramaIsActive (GDK_SCREEN_XDISPLAY (screen)))
|
|
{
|
|
GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (screen);
|
|
XineramaScreenInfo *monitors = XineramaQueryScreens (GDK_SCREEN_XDISPLAY (screen),
|
|
&screen_x11->num_monitors);
|
|
if (screen_x11->num_monitors <= 0)
|
|
{
|
|
/* FIXME: We need to trap errors, since XINERAMA isn't always XINERAMA.
|
|
* I don't think the num_monitors <= 0 check has any validity.
|
|
*/
|
|
g_error ("error while retrieving Xinerama information");
|
|
}
|
|
else
|
|
{
|
|
int i;
|
|
screen_x11->monitors = g_new0 (GdkRectangle, screen_x11->num_monitors);
|
|
|
|
for (i = 0; i < screen_x11->num_monitors; i++)
|
|
{
|
|
screen_x11->monitors[i].x = monitors[i].x_org;
|
|
screen_x11->monitors[i].y = monitors[i].y_org;
|
|
screen_x11->monitors[i].width = monitors[i].width;
|
|
screen_x11->monitors[i].height = monitors[i].height;
|
|
}
|
|
|
|
XFree (monitors);
|
|
|
|
return TRUE;
|
|
}
|
|
}
|
|
#endif /* HAVE_XFREE_XINERAMA */
|
|
|
|
return FALSE;
|
|
}
|
|
#endif /* HAVE_XINERAMA */
|
|
|
|
static void
|
|
init_xinerama_support (GdkScreen * screen)
|
|
{
|
|
GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (screen);
|
|
#ifdef HAVE_XINERAMA
|
|
int opcode, firstevent, firsterror;
|
|
#endif
|
|
|
|
if (screen_x11->monitors)
|
|
g_free (screen_x11->monitors);
|
|
|
|
#ifdef HAVE_XINERAMA
|
|
if (XQueryExtension (GDK_SCREEN_XDISPLAY (screen), "XINERAMA",
|
|
&opcode, &firstevent, &firsterror))
|
|
{
|
|
if (check_solaris_xinerama (screen) ||
|
|
check_xfree_xinerama (screen))
|
|
return;
|
|
}
|
|
#endif /* HAVE_XINERAMA */
|
|
|
|
/* No Xinerama
|
|
*/
|
|
#ifdef G_ENABLE_DEBUG
|
|
if (_gdk_debug_flags & GDK_DEBUG_XINERAMA)
|
|
{
|
|
/* Fake Xinerama mode by splitting the screen into 4 monitors.
|
|
* Also draw a little cross to make the monitor boundaries visible.
|
|
*/
|
|
XSetWindowAttributes atts;
|
|
Window win;
|
|
gint w, h;
|
|
|
|
w = WidthOfScreen (screen_x11->xscreen);
|
|
h = HeightOfScreen (screen_x11->xscreen);
|
|
screen_x11->num_monitors = 4;
|
|
screen_x11->monitors = g_new0 (GdkRectangle, 4);
|
|
screen_x11->monitors[0].x = 0;
|
|
screen_x11->monitors[0].y = 0;
|
|
screen_x11->monitors[0].width = w / 2;
|
|
screen_x11->monitors[0].height = h / 2;
|
|
screen_x11->monitors[1].x = w / 2;
|
|
screen_x11->monitors[1].y = 0;
|
|
screen_x11->monitors[1].width = w / 2;
|
|
screen_x11->monitors[1].height = h / 2;
|
|
screen_x11->monitors[2].x = 0;
|
|
screen_x11->monitors[2].y = h / 2;
|
|
screen_x11->monitors[2].width = w / 2;
|
|
screen_x11->monitors[2].height = h / 2;
|
|
screen_x11->monitors[3].x = w / 2;
|
|
screen_x11->monitors[3].y = h / 2;
|
|
screen_x11->monitors[3].width = w / 2;
|
|
screen_x11->monitors[3].height = h / 2;
|
|
atts.override_redirect = 1;
|
|
atts.background_pixel = WhitePixel(GDK_SCREEN_XDISPLAY (screen),
|
|
screen_x11->screen_num);
|
|
win = XCreateWindow(GDK_SCREEN_XDISPLAY (screen),
|
|
screen_x11->xroot_window, 0, h / 2, w, 1, 0,
|
|
DefaultDepth(GDK_SCREEN_XDISPLAY (screen),
|
|
screen_x11->screen_num),
|
|
InputOutput,
|
|
DefaultVisual(GDK_SCREEN_XDISPLAY (screen),
|
|
screen_x11->screen_num),
|
|
CWOverrideRedirect|CWBackPixel,
|
|
&atts);
|
|
XMapRaised(GDK_SCREEN_XDISPLAY (screen), win);
|
|
win = XCreateWindow(GDK_SCREEN_XDISPLAY (screen),
|
|
screen_x11->xroot_window, w/2 , 0, 1, h, 0,
|
|
DefaultDepth(GDK_SCREEN_XDISPLAY (screen),
|
|
screen_x11->screen_num),
|
|
InputOutput,
|
|
DefaultVisual(GDK_SCREEN_XDISPLAY (screen),
|
|
screen_x11->screen_num),
|
|
CWOverrideRedirect|CWBackPixel,
|
|
&atts);
|
|
XMapRaised(GDK_SCREEN_XDISPLAY (screen), win);
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
screen_x11->num_monitors = 1;
|
|
screen_x11->monitors = g_new0 (GdkRectangle, 1);
|
|
screen_x11->monitors[0].x = 0;
|
|
screen_x11->monitors[0].y = 0;
|
|
screen_x11->monitors[0].width = WidthOfScreen (screen_x11->xscreen);
|
|
screen_x11->monitors[0].height = HeightOfScreen (screen_x11->xscreen);
|
|
}
|
|
}
|
|
|
|
static void
|
|
init_randr_support (GdkScreen * screen)
|
|
{
|
|
GdkScreenX11 *screen_x11 = GDK_SCREEN_X11 (screen);
|
|
|
|
XSelectInput (GDK_SCREEN_XDISPLAY (screen),
|
|
screen_x11->xroot_window,
|
|
StructureNotifyMask);
|
|
}
|
|
|
|
void
|
|
_gdk_x11_screen_size_changed (GdkScreen *screen,
|
|
XEvent *event)
|
|
{
|
|
#ifdef HAVE_RANDR
|
|
if (!XRRUpdateConfiguration (event))
|
|
return;
|
|
#else
|
|
if (event->type == ConfigureNotify)
|
|
{
|
|
XConfigureEvent *rcevent = (XConfigureEvent *) event;
|
|
Screen *xscreen = gdk_x11_screen_get_xscreen (screen);
|
|
|
|
xscreen->width = rcevent->width;
|
|
xscreen->height = rcevent->height;
|
|
}
|
|
else
|
|
return;
|
|
#endif
|
|
|
|
init_xinerama_support (screen);
|
|
g_signal_emit_by_name (screen, "size_changed");
|
|
}
|
|
|
|
void
|
|
_gdk_x11_screen_window_manager_changed (GdkScreen *screen)
|
|
{
|
|
g_signal_emit (screen, signals[WINDOW_MANAGER_CHANGED], 0);
|
|
}
|
|
|
|
/**
|
|
* _gdk_windowing_substitute_screen_number:
|
|
* @display_name : The name of a display, in the form used by
|
|
* gdk_display_open (). If %NULL a default value
|
|
* will be used. On X11, this is derived from the DISPLAY
|
|
* environment variable.
|
|
* @screen_number : The number of a screen within the display
|
|
* referred to by @display_name.
|
|
*
|
|
* Modifies a @display_name to make @screen_number the default
|
|
* screen when the display is opened.
|
|
*
|
|
* Return value: a newly allocated string holding the resulting
|
|
* display name. Free with g_free().
|
|
*/
|
|
gchar *
|
|
_gdk_windowing_substitute_screen_number (const gchar *display_name,
|
|
gint screen_number)
|
|
{
|
|
GString *str;
|
|
gchar *p;
|
|
|
|
if (!display_name)
|
|
display_name = getenv ("DISPLAY");
|
|
|
|
if (!display_name)
|
|
return NULL;
|
|
|
|
str = g_string_new (display_name);
|
|
|
|
p = strrchr (str->str, '.');
|
|
if (p && p > strchr (str->str, ':'))
|
|
g_string_truncate (str, p - str->str);
|
|
|
|
g_string_append_printf (str, ".%d", screen_number);
|
|
|
|
return g_string_free (str, FALSE);
|
|
}
|
|
|
|
/**
|
|
* gdk_screen_make_display_name:
|
|
* @screen: a #GdkScreen
|
|
*
|
|
* Determines the name to pass to gdk_display_open() to get
|
|
* a #GdkDisplay with this screen as the default screen.
|
|
*
|
|
* Return value: a newly allocated string, free with g_free()
|
|
*
|
|
* Since: 2.2
|
|
**/
|
|
gchar *
|
|
gdk_screen_make_display_name (GdkScreen *screen)
|
|
{
|
|
const gchar *old_display;
|
|
|
|
g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
|
|
|
|
old_display = gdk_display_get_name (gdk_screen_get_display (screen));
|
|
|
|
return _gdk_windowing_substitute_screen_number (old_display,
|
|
gdk_screen_get_number (screen));
|
|
}
|
|
|
|
/**
|
|
* gdk_screen_get_active_window
|
|
* @screen: a #GdkScreen
|
|
*
|
|
* Returns the screen's currently active window.
|
|
*
|
|
* On X11, this is done by inspecting the _NET_ACTIVE_WINDOW property
|
|
* on the root window, as described in the <ulink
|
|
* url="http://www.freedesktop.org/Standards/wm-spec">Extended Window
|
|
* Manager Hints</ulink>. If there is no currently currently active
|
|
* window, or the window manager does not support the
|
|
* _NET_ACTIVE_WINDOW hint, this function returns %NULL.
|
|
*
|
|
* On other platforms, this function may return %NULL, depending on whether
|
|
* it is implementable on that platform.
|
|
*
|
|
* The returned window should be unrefed using g_object_unref() when
|
|
* no longer needed.
|
|
*
|
|
* Return value: the currently active window, or %NULL.
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
GdkWindow *
|
|
gdk_screen_get_active_window (GdkScreen *screen)
|
|
{
|
|
GdkScreenX11 *screen_x11;
|
|
GdkWindow *ret = NULL;
|
|
Atom type_return;
|
|
gint format_return;
|
|
gulong nitems_return;
|
|
gulong bytes_after_return;
|
|
guchar *data = NULL;
|
|
|
|
g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
|
|
|
|
if (!gdk_x11_screen_supports_net_wm_hint (screen,
|
|
gdk_atom_intern_static_string ("_NET_ACTIVE_WINDOW")))
|
|
return NULL;
|
|
|
|
screen_x11 = GDK_SCREEN_X11 (screen);
|
|
|
|
if (XGetWindowProperty (screen_x11->xdisplay, screen_x11->xroot_window,
|
|
gdk_x11_get_xatom_by_name_for_display (screen_x11->display,
|
|
"_NET_ACTIVE_WINDOW"),
|
|
0, 1, False, XA_WINDOW, &type_return,
|
|
&format_return, &nitems_return,
|
|
&bytes_after_return, &data)
|
|
== Success)
|
|
{
|
|
if ((type_return == XA_WINDOW) && (format_return == 32) && (data))
|
|
{
|
|
GdkNativeWindow window = *(GdkNativeWindow *) data;
|
|
|
|
if (window != None)
|
|
{
|
|
ret = gdk_window_foreign_new_for_display (screen_x11->display,
|
|
*(GdkNativeWindow *) data);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (data)
|
|
XFree (data);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* gdk_screen_get_window_stack
|
|
* @screen: a #GdkScreen
|
|
*
|
|
* Returns a #GList of #GdkWindow<!-- -->s representing the current
|
|
* window stack.
|
|
*
|
|
* On X11, this is done by inspecting the _NET_CLIENT_LIST_STACKING
|
|
* property on the root window, as described in the <ulink
|
|
* url="http://www.freedesktop.org/Standards/wm-spec">Extended Window
|
|
* Manager Hints</ulink>. If the window manager does not support the
|
|
* _NET_CLIENT_LIST_STACKING hint, this function returns %NULL.
|
|
*
|
|
* On other platforms, this function may return %NULL, depending on whether
|
|
* it is implementable on that platform.
|
|
*
|
|
* The returned list is newly allocated and owns references to the
|
|
* windows it contains, so it should be freed using g_list_free() and
|
|
* its windows unrefed using g_object_unref() when no longer needed.
|
|
*
|
|
* Return value: a list of #GdkWindow<!-- -->s for the current window stack,
|
|
* or %NULL.
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
GList *
|
|
gdk_screen_get_window_stack (GdkScreen *screen)
|
|
{
|
|
GdkScreenX11 *screen_x11;
|
|
GList *ret = NULL;
|
|
Atom type_return;
|
|
gint format_return;
|
|
gulong nitems_return;
|
|
gulong bytes_after_return;
|
|
guchar *data = NULL;
|
|
|
|
g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
|
|
|
|
if (!gdk_x11_screen_supports_net_wm_hint (screen,
|
|
gdk_atom_intern_static_string ("_NET_CLIENT_LIST_STACKING")))
|
|
return NULL;
|
|
|
|
screen_x11 = GDK_SCREEN_X11 (screen);
|
|
|
|
if (XGetWindowProperty (screen_x11->xdisplay, screen_x11->xroot_window,
|
|
gdk_x11_get_xatom_by_name_for_display (screen_x11->display,
|
|
"_NET_CLIENT_LIST_STACKING"),
|
|
0, G_MAXLONG, False, XA_WINDOW, &type_return,
|
|
&format_return, &nitems_return,
|
|
&bytes_after_return, &data)
|
|
== Success)
|
|
{
|
|
if ((type_return == XA_WINDOW) && (format_return == 32) &&
|
|
(data) && (nitems_return > 0))
|
|
{
|
|
GdkNativeWindow *stack = (GdkNativeWindow *) data;
|
|
GdkWindow *win;
|
|
int i;
|
|
|
|
for (i = 0; i < nitems_return; i++)
|
|
{
|
|
win = gdk_window_foreign_new_for_display (screen_x11->display,
|
|
stack[i]);
|
|
|
|
if (win != NULL)
|
|
ret = g_list_append (ret, win);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (data)
|
|
XFree (data);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#define __GDK_SCREEN_X11_C__
|
|
#include "gdkaliasdef.c"
|