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gtk/gdk/x11/gdkwindow-x11.c
Owen Taylor ef6053684b Comprehensively zero all unused parts of client messages (Mainly Motif DND 
Tue May 20 15:09:29 2003  Owen Taylor  <otaylor@redhat.com>

        * gdk/x11/gdkdnd-x11.c gdk/x11/gdkwindow-x11.c: Comprehensively
        zero all unused parts of client messages (Mainly Motif DND
        and EWMH). Also, fix a couple places where we were putting
        contents into Motif DND messages that didn't belong.
        (#113361, EWMH problem reported by Lubos Lunak)

        * gtk/gtkselection.c (_gtk_selection_request): Handle the
        case where the property type for the multiple atoms is
        ATOM_PAIR by doing the conversions ourselve. This is
        needed for Xt inter-operation.
2003-05-20 21:01:08 +00:00

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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <netinet/in.h>
#include <unistd.h>
#include "gdk.h"
#include "config.h"
#include "gdkwindow.h"
#include "gdkinputprivate.h"
#include "gdkdisplay-x11.h"
#include "gdkprivate-x11.h"
#include "gdkregion.h"
#include "gdkinternals.h"
#include "MwmUtil.h"
#include "gdkwindow-x11.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#ifdef HAVE_SHAPE_EXT
#include <X11/extensions/shape.h>
#endif
const int _gdk_event_mask_table[21] =
{
ExposureMask,
PointerMotionMask,
PointerMotionHintMask,
ButtonMotionMask,
Button1MotionMask,
Button2MotionMask,
Button3MotionMask,
ButtonPressMask,
ButtonReleaseMask,
KeyPressMask,
KeyReleaseMask,
EnterWindowMask,
LeaveWindowMask,
FocusChangeMask,
StructureNotifyMask,
PropertyChangeMask,
VisibilityChangeMask,
0, /* PROXIMITY_IN */
0, /* PROXIMTY_OUT */
SubstructureNotifyMask,
ButtonPressMask /* SCROLL; on X mouse wheel events is treated as mouse button 4/5 */
};
const int _gdk_nenvent_masks = sizeof (_gdk_event_mask_table) / sizeof (int);
/* Forward declarations */
static gboolean gdk_window_gravity_works (GdkWindow *window);
static void gdk_window_set_static_win_gravity (GdkWindow *window,
gboolean on);
static gboolean gdk_window_have_shape_ext (GdkDisplay *display);
static gboolean gdk_window_icon_name_set (GdkWindow *window);
static void gdk_window_add_colormap_windows (GdkWindow *window);
static void set_wm_name (GdkDisplay *display,
Window xwindow,
const gchar *name);
static GdkColormap* gdk_window_impl_x11_get_colormap (GdkDrawable *drawable);
static void gdk_window_impl_x11_set_colormap (GdkDrawable *drawable,
GdkColormap *cmap);
static void gdk_window_impl_x11_get_size (GdkDrawable *drawable,
gint *width,
gint *height);
static GdkRegion* gdk_window_impl_x11_get_visible_region (GdkDrawable *drawable);
static void gdk_window_impl_x11_init (GdkWindowImplX11 *window);
static void gdk_window_impl_x11_class_init (GdkWindowImplX11Class *klass);
static void gdk_window_impl_x11_finalize (GObject *object);
static gpointer parent_class = NULL;
GType
gdk_window_impl_x11_get_type (void)
{
static GType object_type = 0;
if (!object_type)
{
static const GTypeInfo object_info =
{
sizeof (GdkWindowImplX11Class),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gdk_window_impl_x11_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GdkWindowImplX11),
0, /* n_preallocs */
(GInstanceInitFunc) gdk_window_impl_x11_init,
};
object_type = g_type_register_static (GDK_TYPE_DRAWABLE_IMPL_X11,
"GdkWindowImplX11",
&object_info, 0);
}
return object_type;
}
GType
_gdk_window_impl_get_type (void)
{
return gdk_window_impl_x11_get_type ();
}
static void
gdk_window_impl_x11_init (GdkWindowImplX11 *impl)
{
impl->width = 1;
impl->height = 1;
}
static void
gdk_window_impl_x11_class_init (GdkWindowImplX11Class *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GdkDrawableClass *drawable_class = GDK_DRAWABLE_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->finalize = gdk_window_impl_x11_finalize;
drawable_class->set_colormap = gdk_window_impl_x11_set_colormap;
drawable_class->get_colormap = gdk_window_impl_x11_get_colormap;
drawable_class->get_size = gdk_window_impl_x11_get_size;
/* Visible and clip regions are the same */
drawable_class->get_clip_region = gdk_window_impl_x11_get_visible_region;
drawable_class->get_visible_region = gdk_window_impl_x11_get_visible_region;
}
static void
gdk_window_impl_x11_finalize (GObject *object)
{
GdkWindowObject *wrapper;
GdkDrawableImplX11 *draw_impl;
GdkWindowImplX11 *window_impl;
g_return_if_fail (GDK_IS_WINDOW_IMPL_X11 (object));
draw_impl = GDK_DRAWABLE_IMPL_X11 (object);
window_impl = GDK_WINDOW_IMPL_X11 (object);
wrapper = (GdkWindowObject*) draw_impl->wrapper;
_gdk_xgrab_check_destroy (GDK_WINDOW (wrapper));
if (!GDK_WINDOW_DESTROYED (wrapper))
{
_gdk_xid_table_remove (GDK_WINDOW_DISPLAY (object), draw_impl->xid);
if (window_impl->focus_window)
_gdk_xid_table_remove (GDK_WINDOW_DISPLAY (object), window_impl->focus_window);
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GdkColormap*
gdk_window_impl_x11_get_colormap (GdkDrawable *drawable)
{
GdkDrawableImplX11 *drawable_impl;
GdkWindowImplX11 *window_impl;
g_return_val_if_fail (GDK_IS_WINDOW_IMPL_X11 (drawable), NULL);
drawable_impl = GDK_DRAWABLE_IMPL_X11 (drawable);
window_impl = GDK_WINDOW_IMPL_X11 (drawable);
if (!((GdkWindowObject *) drawable_impl->wrapper)->input_only &&
drawable_impl->colormap == NULL)
{
XWindowAttributes window_attributes;
GdkVisual *visual;
XGetWindowAttributes (GDK_SCREEN_XDISPLAY (drawable_impl->screen),
drawable_impl->xid,
&window_attributes);
visual = gdk_x11_screen_lookup_visual (drawable_impl->screen,
window_attributes.visual->visualid);
drawable_impl->colormap = gdk_x11_colormap_foreign_new (visual,
window_attributes.colormap);
}
return drawable_impl->colormap;
}
static void
gdk_window_impl_x11_set_colormap (GdkDrawable *drawable,
GdkColormap *cmap)
{
GdkWindowImplX11 *impl;
GdkDrawableImplX11 *draw_impl;
g_return_if_fail (GDK_IS_WINDOW_IMPL_X11 (drawable));
impl = GDK_WINDOW_IMPL_X11 (drawable);
draw_impl = GDK_DRAWABLE_IMPL_X11 (drawable);
if (cmap && GDK_WINDOW_DESTROYED (draw_impl->wrapper))
return;
/* chain up */
GDK_DRAWABLE_CLASS (parent_class)->set_colormap (drawable, cmap);
if (cmap)
{
XSetWindowColormap (GDK_SCREEN_XDISPLAY (draw_impl->screen),
draw_impl->xid,
GDK_COLORMAP_XCOLORMAP (cmap));
if (((GdkWindowObject*)draw_impl->wrapper)->window_type !=
GDK_WINDOW_TOPLEVEL)
gdk_window_add_colormap_windows (GDK_WINDOW (draw_impl->wrapper));
}
}
static void
gdk_window_impl_x11_get_size (GdkDrawable *drawable,
gint *width,
gint *height)
{
g_return_if_fail (GDK_IS_WINDOW_IMPL_X11 (drawable));
if (width)
*width = GDK_WINDOW_IMPL_X11 (drawable)->width;
if (height)
*height = GDK_WINDOW_IMPL_X11 (drawable)->height;
}
static GdkRegion*
gdk_window_impl_x11_get_visible_region (GdkDrawable *drawable)
{
GdkWindowImplX11 *impl = GDK_WINDOW_IMPL_X11 (drawable);
GdkRectangle result_rect;
result_rect.x = 0;
result_rect.y = 0;
result_rect.width = impl->width;
result_rect.height = impl->height;
gdk_rectangle_intersect (&result_rect, &impl->position_info.clip_rect, &result_rect);
return gdk_region_rectangle (&result_rect);
}
void
_gdk_windowing_window_init (GdkScreen * screen)
{
GdkWindowObject *private;
GdkWindowImplX11 *impl;
GdkDrawableImplX11 *draw_impl;
GdkScreenX11 *screen_x11;
XWindowAttributes xattributes;
unsigned int width;
unsigned int height;
unsigned int border_width;
unsigned int depth;
int x, y;
screen_x11 = GDK_SCREEN_X11 (screen);
g_assert (screen_x11->root_window == NULL);
gdk_screen_set_default_colormap (screen,
gdk_screen_get_system_colormap (screen));
XGetGeometry (screen_x11->xdisplay, screen_x11->xroot_window,
&screen_x11->xroot_window, &x, &y, &width, &height, &border_width, &depth);
XGetWindowAttributes (screen_x11->xdisplay, screen_x11->xroot_window, &xattributes);
screen_x11->root_window = g_object_new (GDK_TYPE_WINDOW, NULL);
private = (GdkWindowObject *)screen_x11->root_window;
impl = GDK_WINDOW_IMPL_X11 (private->impl);
draw_impl = GDK_DRAWABLE_IMPL_X11 (private->impl);
draw_impl->screen = screen;
draw_impl->xid = screen_x11->xroot_window;
draw_impl->wrapper = GDK_DRAWABLE (private);
draw_impl->colormap = gdk_screen_get_system_colormap (screen);
g_object_ref (draw_impl->colormap);
private->window_type = GDK_WINDOW_ROOT;
private->depth = depth;
impl->width = width;
impl->height = height;
_gdk_window_init_position (GDK_WINDOW (private));
_gdk_xid_table_insert (screen_x11->display,
&screen_x11->xroot_window,
screen_x11->root_window);
}
static void
set_wm_protocols (GdkWindow *window)
{
GdkDisplay *display = gdk_drawable_get_display (window);
Atom protocols[3];
protocols[0] = gdk_x11_get_xatom_by_name_for_display (display, "WM_DELETE_WINDOW");
protocols[1] = gdk_x11_get_xatom_by_name_for_display (display, "WM_TAKE_FOCUS");
protocols[2] = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PING");
XSetWMProtocols (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XID (window), protocols, 3);
}
static const gchar *
get_default_title (void)
{
const char *title;
title = g_get_application_name ();
if (!title)
title = g_get_prgname ();
return title;
}
static void
check_leader_window_title (GdkDisplay *display)
{
GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (display);
if (!display_x11->leader_window_title_set)
{
set_wm_name (display,
display_x11->leader_window,
get_default_title ());
display_x11->leader_window_title_set = TRUE;
}
}
/**
* gdk_window_new:
* @parent: a #GdkWindow, or %NULL to create the window as a child of
* the default root window for the default display.
* @attributes: attributes of the new window
* @attributes_mask: mask indicating which fields in @attributes are valid
*
* Creates a new #GdkWindow using the attributes from
* @attributes. See #GdkWindowAttr and #GdkWindowAttributesType for
* more details. Note: to use this on displays other than the default
* display, @parent must be specified.
*
* Return value: the new #GdkWindow
**/
GdkWindow*
gdk_window_new (GdkWindow *parent,
GdkWindowAttr *attributes,
gint attributes_mask)
{
GdkWindow *window;
GdkWindowObject *private;
GdkWindowImplX11 *impl;
GdkDrawableImplX11 *draw_impl;
GdkScreenX11 *screen_x11;
GdkScreen *screen;
GdkVisual *visual;
Window xparent;
Visual *xvisual;
Display *xdisplay;
Window xid;
XSetWindowAttributes xattributes;
long xattributes_mask;
XSizeHints size_hints;
XWMHints wm_hints;
XClassHint *class_hint;
int x, y, depth;
unsigned int class;
const char *title;
int i;
long pid;
g_return_val_if_fail (attributes != NULL, NULL);
if (!parent)
{
GDK_NOTE (MULTIHEAD,
g_warning ("gdk_window_new(): no parent specified reverting to parent = default root window"));
screen = gdk_screen_get_default ();
parent = gdk_screen_get_root_window (screen);
}
else
screen = gdk_drawable_get_screen (parent);
screen_x11 = GDK_SCREEN_X11 (screen);
g_return_val_if_fail (GDK_IS_WINDOW (parent), NULL);
if (GDK_WINDOW_DESTROYED (parent))
return NULL;
xparent = GDK_WINDOW_XID (parent);
window = g_object_new (GDK_TYPE_WINDOW, NULL);
private = (GdkWindowObject *)window;
impl = GDK_WINDOW_IMPL_X11 (private->impl);
draw_impl = GDK_DRAWABLE_IMPL_X11 (private->impl);
draw_impl->wrapper = GDK_DRAWABLE (window);
draw_impl->screen = screen;
xdisplay = screen_x11->xdisplay;
/* Windows with a foreign parent are treated as if they are children
* of the root window, except for actual creation.
*/
if (GDK_WINDOW_TYPE (parent) == GDK_WINDOW_FOREIGN)
parent = gdk_screen_get_root_window (screen);
private->parent = (GdkWindowObject *)parent;
xattributes_mask = 0;
if (attributes_mask & GDK_WA_X)
x = attributes->x;
else
x = 0;
if (attributes_mask & GDK_WA_Y)
y = attributes->y;
else
y = 0;
private->x = x;
private->y = y;
impl->width = (attributes->width > 1) ? (attributes->width) : (1);
impl->height = (attributes->height > 1) ? (attributes->height) : (1);
if (attributes->wclass == GDK_INPUT_ONLY)
{
/* Backwards compatiblity - we've always ignored
* attributes->window_type for input-only windows
* before
*/
if (GDK_WINDOW_TYPE (parent) == GDK_WINDOW_ROOT)
private->window_type = GDK_WINDOW_TEMP;
else
private->window_type = GDK_WINDOW_CHILD;
}
else
private->window_type = attributes->window_type;
_gdk_window_init_position (GDK_WINDOW (private));
if (impl->position_info.big)
private->guffaw_gravity = TRUE;
if (attributes_mask & GDK_WA_VISUAL)
visual = attributes->visual;
else
visual = gdk_screen_get_system_visual (screen);
xvisual = ((GdkVisualPrivate*) visual)->xvisual;
xattributes.event_mask = StructureNotifyMask | PropertyChangeMask;
for (i = 0; i < _gdk_nenvent_masks; i++)
{
if (attributes->event_mask & (1 << (i + 1)))
xattributes.event_mask |= _gdk_event_mask_table[i];
}
private->event_mask = attributes->event_mask;
if (xattributes.event_mask)
xattributes_mask |= CWEventMask;
if (attributes_mask & GDK_WA_NOREDIR)
{
xattributes.override_redirect =
(attributes->override_redirect == FALSE)?False:True;
xattributes_mask |= CWOverrideRedirect;
}
else
xattributes.override_redirect = False;
if (private->parent && private->parent->guffaw_gravity)
{
xattributes.win_gravity = StaticGravity;
xattributes_mask |= CWWinGravity;
}
/* Sanity checks */
switch (private->window_type)
{
case GDK_WINDOW_TOPLEVEL:
case GDK_WINDOW_DIALOG:
case GDK_WINDOW_TEMP:
if (GDK_WINDOW_TYPE (parent) != GDK_WINDOW_ROOT)
{
g_warning (G_STRLOC "Toplevel windows must be created as children of\n"
"of a window of type GDK_WINDOW_ROOT or GDK_WINDOW_FOREIGN");
xparent = GDK_SCREEN_XROOTWIN (screen);
}
case GDK_WINDOW_CHILD:
break;
default:
g_warning (G_STRLOC "cannot make windows of type %d", private->window_type);
return NULL;
}
if (attributes->wclass == GDK_INPUT_OUTPUT)
{
class = InputOutput;
depth = visual->depth;
private->input_only = FALSE;
private->depth = depth;
if (attributes_mask & GDK_WA_COLORMAP)
{
draw_impl->colormap = attributes->colormap;
g_object_ref (attributes->colormap);
}
else
{
if ((((GdkVisualPrivate *)gdk_screen_get_system_visual (screen))->xvisual) == xvisual)
{
draw_impl->colormap = gdk_screen_get_system_colormap (screen);
g_object_ref (draw_impl->colormap);
}
else
{
draw_impl->colormap = gdk_colormap_new (visual, FALSE);
}
}
private->bg_color.pixel = BlackPixel (xdisplay, screen_x11->screen_num);
xattributes.background_pixel = private->bg_color.pixel;
private->bg_pixmap = NULL;
xattributes.border_pixel = BlackPixel (xdisplay, screen_x11->screen_num);
xattributes_mask |= CWBorderPixel | CWBackPixel;
if (private->guffaw_gravity)
xattributes.bit_gravity = StaticGravity;
else
xattributes.bit_gravity = NorthWestGravity;
xattributes_mask |= CWBitGravity;
xattributes.colormap = GDK_COLORMAP_XCOLORMAP (draw_impl->colormap);
xattributes_mask |= CWColormap;
if (private->window_type == GDK_WINDOW_TEMP)
{
xattributes.save_under = True;
xattributes.override_redirect = True;
xattributes.cursor = None;
xattributes_mask |= CWSaveUnder | CWOverrideRedirect;
}
}
else
{
depth = 0;
private->depth = 0;
class = InputOnly;
private->input_only = TRUE;
draw_impl->colormap = gdk_screen_get_system_colormap (screen);
g_object_ref (draw_impl->colormap);
}
xid = draw_impl->xid = XCreateWindow (xdisplay, xparent,
impl->position_info.x, impl->position_info.y,
impl->position_info.width, impl->position_info.height,
0, depth, class, xvisual,
xattributes_mask, &xattributes);
g_object_ref (window);
_gdk_xid_table_insert (screen_x11->display, &draw_impl->xid, window);
gdk_window_set_cursor (window, ((attributes_mask & GDK_WA_CURSOR) ?
(attributes->cursor) :
NULL));
if (private->parent)
private->parent->children = g_list_prepend (private->parent->children, window);
switch (GDK_WINDOW_TYPE (private))
{
case GDK_WINDOW_DIALOG:
XSetTransientForHint (xdisplay, xid, xparent);
case GDK_WINDOW_TOPLEVEL:
case GDK_WINDOW_TEMP:
set_wm_protocols (window);
break;
case GDK_WINDOW_CHILD:
if ((attributes->wclass == GDK_INPUT_OUTPUT) &&
(draw_impl->colormap != gdk_screen_get_system_colormap (screen)) &&
(draw_impl->colormap != gdk_drawable_get_colormap (gdk_window_get_toplevel (window))))
{
GDK_NOTE (MISC, g_message ("adding colormap window\n"));
gdk_window_add_colormap_windows (window);
}
return window;
default:
return window;
}
if (class != InputOnly)
{
/* The focus window is off the visible area, and serves to receive key
* press events so they don't get sent to child windows.
*/
impl->focus_window = XCreateSimpleWindow (xdisplay, xid,
-1, -1, 1, 1, 0,
xattributes.background_pixel,
xattributes.background_pixel);
/* FIXME: probably better to actually track the requested event mask for the toplevel
*/
XSelectInput (xdisplay, impl->focus_window,
KeyPressMask | KeyReleaseMask | FocusChangeMask);
XMapWindow (xdisplay, impl->focus_window);
_gdk_xid_table_insert (screen_x11->display, &impl->focus_window, window);
}
size_hints.flags = PSize;
size_hints.width = impl->width;
size_hints.height = impl->height;
check_leader_window_title (screen_x11->display);
wm_hints.flags = StateHint | WindowGroupHint;
wm_hints.window_group = GDK_DISPLAY_X11 (screen_x11->display)->leader_window;
wm_hints.input = True;
wm_hints.initial_state = NormalState;
/* FIXME: Is there any point in doing this? Do any WM's pay
* attention to PSize, and even if they do, is this the
* correct value???
*/
XSetWMNormalHints (xdisplay, xid, &size_hints);
XSetWMHints (xdisplay, xid, &wm_hints);
/* This will set WM_CLIENT_MACHINE and WM_LOCALE_NAME */
XSetWMProperties (xdisplay, xid, NULL, NULL, NULL, 0, NULL, NULL, NULL);
pid = getpid ();
XChangeProperty (xdisplay, xid,
gdk_x11_get_xatom_by_name_for_display (screen_x11->display, "_NET_WM_PID"),
XA_CARDINAL, 32,
PropModeReplace,
(guchar *)&pid, 1);
XChangeProperty (xdisplay, xid,
gdk_x11_get_xatom_by_name_for_display (screen_x11->display, "WM_CLIENT_LEADER"),
XA_WINDOW, 32, PropModeReplace,
(guchar *) &GDK_DISPLAY_X11 (screen_x11->display)->leader_window, 1);
if (attributes_mask & GDK_WA_TITLE)
title = attributes->title;
else
title = get_default_title ();
gdk_window_set_title (window, title);
if (attributes_mask & GDK_WA_WMCLASS)
{
class_hint = XAllocClassHint ();
class_hint->res_name = attributes->wmclass_name;
class_hint->res_class = attributes->wmclass_class;
XSetClassHint (xdisplay, xid, class_hint);
XFree (class_hint);
}
return window;
}
static GdkEventMask
x_event_mask_to_gdk_event_mask (long mask)
{
GdkEventMask event_mask = 0;
int i;
for (i = 0; i < _gdk_nenvent_masks; i++)
{
if (mask & _gdk_event_mask_table[i])
event_mask |= 1 << (i + 1);
}
return event_mask;
}
/**
* gdk_window_foreign_new_for_display:
* @display: the #GdkDisplay where the window handle comes from.
* @anid: a native window handle.
*
* Wraps a native window in a #GdkWindow.
* This may fail if the window has been destroyed.
*
* For example in the X backend, a native window handle is an Xlib
* <type>XID</type>.
*
* Return value: the newly-created #GdkWindow wrapper for the
* native window or %NULL if the window has been destroyed.
*
* Since: 2.2
**/
GdkWindow *
gdk_window_foreign_new_for_display (GdkDisplay *display,
GdkNativeWindow anid)
{
GdkWindow *window;
GdkWindowObject *private;
GdkWindowImplX11 *impl;
GdkDrawableImplX11 *draw_impl;
GdkDisplayX11 *display_x11;
XWindowAttributes attrs;
Window root, parent;
Window *children = NULL;
guint nchildren;
gboolean result;
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
display_x11 = GDK_DISPLAY_X11 (display);
gdk_error_trap_push ();
result = XGetWindowAttributes (display_x11->xdisplay, anid, &attrs);
if (gdk_error_trap_pop () || !result)
return NULL;
/* FIXME: This is pretty expensive. Maybe the caller should supply
* the parent */
gdk_error_trap_push ();
result = XQueryTree (display_x11->xdisplay, anid, &root, &parent, &children, &nchildren);
if (gdk_error_trap_pop () || !result)
return NULL;
if (children)
XFree (children);
window = g_object_new (GDK_TYPE_WINDOW, NULL);
private = (GdkWindowObject *)window;
impl = GDK_WINDOW_IMPL_X11 (private->impl);
draw_impl = GDK_DRAWABLE_IMPL_X11 (private->impl);
draw_impl->wrapper = GDK_DRAWABLE (window);
draw_impl->screen = _gdk_x11_display_screen_for_xrootwin (display, root);
private->parent = gdk_xid_table_lookup_for_display (display, parent);
if (!private->parent || GDK_WINDOW_TYPE (private->parent) == GDK_WINDOW_FOREIGN)
private->parent = (GdkWindowObject *) gdk_screen_get_root_window (draw_impl->screen);
private->parent->children = g_list_prepend (private->parent->children, window);
draw_impl->xid = anid;
private->x = attrs.x;
private->y = attrs.y;
impl->width = attrs.width;
impl->height = attrs.height;
private->window_type = GDK_WINDOW_FOREIGN;
private->destroyed = FALSE;
private->event_mask = x_event_mask_to_gdk_event_mask (attrs.your_event_mask);
if (attrs.map_state == IsUnmapped)
private->state = GDK_WINDOW_STATE_WITHDRAWN;
else
private->state = 0;
private->depth = attrs.depth;
_gdk_window_init_position (GDK_WINDOW (private));
g_object_ref (window);
_gdk_xid_table_insert (display, &GDK_WINDOW_XID (window), window);
return window;
}
/**
* gdk_window_lookup_for_display:
* @display: the #GdkDisplay corresponding to the window handle
* @anid: a native window handle.
*
* Looks up the #GdkWindow that wraps the given native window handle.
*
* For example in the X backend, a native window handle is an Xlib
* <type>XID</type>.
*
* Return value: the #GdkWindow wrapper for the native window,
* or %NULL if there is none.
*
* Since: 2.2
**/
GdkWindow *
gdk_window_lookup_for_display (GdkDisplay *display, GdkNativeWindow anid)
{
return (GdkWindow*) gdk_xid_table_lookup_for_display (display, anid);
}
/**
* gdk_window_lookup:
* @anid: a native window handle.
*
* Looks up the #GdkWindow that wraps the given native window handle.
*
* For example in the X backend, a native window handle is an Xlib
* <type>XID</type>.
*
* Return value: the #GdkWindow wrapper for the native window,
* or %NULL if there is none.
**/
GdkWindow *
gdk_window_lookup (GdkNativeWindow anid)
{
return (GdkWindow*) gdk_xid_table_lookup (anid);
}
void
_gdk_windowing_window_destroy (GdkWindow *window,
gboolean recursing,
gboolean foreign_destroy)
{
GdkWindowObject *private = (GdkWindowObject *)window;
g_return_if_fail (GDK_IS_WINDOW (window));
_gdk_selection_window_destroyed (window);
if (private->extension_events != 0)
_gdk_input_window_destroy (window);
#ifdef HAVE_XFT
{
GdkDrawableImplX11 *draw_impl = GDK_DRAWABLE_IMPL_X11 (private->impl);
#ifdef HAVE_XFT2
if (draw_impl->xft_draw)
XftDrawDestroy (draw_impl->xft_draw);
#else /* !HAVE_XFT2 */
if (draw_impl->picture)
XRenderFreePicture (GDK_DRAWABLE_XDISPLAY (window), draw_impl->picture);
#endif /* HAVE_XFT2 */
}
#endif /* HAVE_XFT */
if (private->window_type == GDK_WINDOW_FOREIGN)
{
if (!foreign_destroy && (private->parent != NULL))
{
/* It's somebody else's window, but in our heirarchy,
* so reparent it to the root window, and then send
* it a delete event, as if we were a WM
*/
XClientMessageEvent xevent;
gdk_error_trap_push ();
gdk_window_hide (window);
gdk_window_reparent (window, NULL, 0, 0);
xevent.type = ClientMessage;
xevent.window = GDK_WINDOW_XID (window);
xevent.message_type = gdk_x11_get_xatom_by_name_for_display (GDK_WINDOW_DISPLAY (window),
"WM_PROTOCOLS");
xevent.format = 32;
xevent.data.l[0] = gdk_x11_get_xatom_by_name_for_display (GDK_WINDOW_DISPLAY (window),
"WM_DELETE_WINDOW");
xevent.data.l[1] = CurrentTime;
xevent.data.l[2] = 0;
xevent.data.l[3] = 0;
xevent.data.l[4] = 0;
XSendEvent (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
False, 0, (XEvent *)&xevent);
gdk_display_sync (GDK_WINDOW_DISPLAY (window));
gdk_error_trap_pop ();
}
}
else if (!recursing && !foreign_destroy)
{
XDestroyWindow (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XID (window));
}
}
/* This function is called when the XWindow is really gone.
*/
void
gdk_window_destroy_notify (GdkWindow *window)
{
GdkWindowImplX11 *window_impl;
g_return_if_fail (window != NULL);
window_impl = GDK_WINDOW_IMPL_X11 (((GdkWindowObject *)window)->impl);
if (!GDK_WINDOW_DESTROYED (window))
{
if (GDK_WINDOW_TYPE(window) != GDK_WINDOW_FOREIGN)
g_warning ("GdkWindow %#lx unexpectedly destroyed", GDK_WINDOW_XID (window));
_gdk_window_destroy (window, TRUE);
}
_gdk_xid_table_remove (GDK_WINDOW_DISPLAY (window), GDK_WINDOW_XID (window));
if (window_impl->focus_window)
_gdk_xid_table_remove (GDK_WINDOW_DISPLAY (window), window_impl->focus_window);
_gdk_xgrab_check_destroy (window);
g_object_unref (window);
}
static void
set_initial_hints (GdkWindow *window)
{
GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
Window xwindow = GDK_WINDOW_XID (window);
GdkWindowObject *private;
GdkWindowImplX11 *impl;
Atom atoms[7];
gint i;
private = (GdkWindowObject*) window;
impl = GDK_WINDOW_IMPL_X11 (private->impl);
if (private->state & GDK_WINDOW_STATE_ICONIFIED)
{
XWMHints *wm_hints;
wm_hints = XGetWMHints (xdisplay, xwindow);
if (!wm_hints)
wm_hints = XAllocWMHints ();
wm_hints->flags |= StateHint;
wm_hints->initial_state = IconicState;
XSetWMHints (xdisplay, xwindow, wm_hints);
XFree (wm_hints);
}
/* We set the spec hints regardless of whether the spec is supported,
* since it can't hurt and it's kind of expensive to check whether
* it's supported.
*/
i = 0;
if (private->state & GDK_WINDOW_STATE_MAXIMIZED)
{
atoms[i] = gdk_x11_get_xatom_by_name_for_display (display,
"_NET_WM_STATE_MAXIMIZED_VERT");
++i;
atoms[i] = gdk_x11_get_xatom_by_name_for_display (display,
"_NET_WM_STATE_MAXIMIZED_HORZ");
++i;
}
if (private->state & GDK_WINDOW_STATE_STICKY)
{
atoms[i] = gdk_x11_get_xatom_by_name_for_display (display,
"_NET_WM_STATE_STICKY");
++i;
}
if (private->state & GDK_WINDOW_STATE_FULLSCREEN)
{
atoms[i] = gdk_x11_get_xatom_by_name_for_display (display,
"_NET_WM_STATE_FULLSCREEN");
++i;
}
if (private->modal_hint)
{
atoms[i] = gdk_x11_get_xatom_by_name_for_display (display,
"_NET_WM_STATE_MODAL");
++i;
}
if (impl->skip_taskbar_hint)
{
atoms[i] = gdk_x11_get_xatom_by_name_for_display (display,
"_NET_WM_STATE_SKIP_TASKBAR");
++i;
}
if (impl->skip_pager_hint)
{
atoms[i] = gdk_x11_get_xatom_by_name_for_display (display,
"_NET_WM_STATE_SKIP_PAGER");
++i;
}
if (i > 0)
{
XChangeProperty (xdisplay,
xwindow,
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"),
XA_ATOM, 32, PropModeReplace,
(guchar*) atoms, i);
}
else
{
XDeleteProperty (xdisplay,
xwindow,
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"));
}
if (private->state & GDK_WINDOW_STATE_STICKY)
{
atoms[0] = 0xFFFFFFFF;
XChangeProperty (xdisplay,
xwindow,
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"),
XA_CARDINAL, 32, PropModeReplace,
(guchar*) atoms, 1);
}
else
{
XDeleteProperty (xdisplay,
xwindow,
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"));
}
}
static void
show_window_internal (GdkWindow *window,
gboolean raise)
{
GdkWindowObject *private;
g_return_if_fail (GDK_IS_WINDOW (window));
private = (GdkWindowObject*) window;
if (!private->destroyed)
{
if (raise)
XRaiseWindow (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window));
if (!GDK_WINDOW_IS_MAPPED (window))
{
set_initial_hints (window);
gdk_synthesize_window_state (window,
GDK_WINDOW_STATE_WITHDRAWN,
0);
}
g_assert (GDK_WINDOW_IS_MAPPED (window));
if (GDK_WINDOW_IMPL_X11 (private->impl)->position_info.mapped)
XMapWindow (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window));
}
}
/**
* 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)
{
g_return_if_fail (GDK_IS_WINDOW (window));
show_window_internal (window, FALSE);
}
/**
* 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)
{
g_return_if_fail (GDK_IS_WINDOW (window));
show_window_internal (window, TRUE);
}
/**
* gdk_window_hide:
* @window: a #GdkWindow
*
* For toplevel windows, withdraws them, so they will no longer be
* known to the window manager; for all windows, unmaps them, so
* they won't be displayed. Normally done automatically as
* part of gtk_widget_hide().
*
**/
void
gdk_window_hide (GdkWindow *window)
{
GdkWindowObject *private;
g_return_if_fail (window != NULL);
private = (GdkWindowObject*) window;
/* We'll get the unmap notify eventually, and handle it then,
* but checking here makes things more consistent if we are
* just doing stuff ourself.
*/
_gdk_xgrab_check_unmap (window,
NextRequest (GDK_WINDOW_XDISPLAY (window)));
/* You can't simply unmap toplevel windows. */
switch (private->window_type)
{
case GDK_WINDOW_TOPLEVEL:
case GDK_WINDOW_DIALOG:
case GDK_WINDOW_TEMP: /* ? */
gdk_window_withdraw (window);
return;
break;
case GDK_WINDOW_FOREIGN:
case GDK_WINDOW_ROOT:
case GDK_WINDOW_CHILD:
break;
}
if (!private->destroyed)
{
if (GDK_WINDOW_IS_MAPPED (window))
gdk_synthesize_window_state (window,
0,
GDK_WINDOW_STATE_WITHDRAWN);
g_assert (!GDK_WINDOW_IS_MAPPED (window));
_gdk_window_clear_update_area (window);
XUnmapWindow (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (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)
{
GdkWindowObject *private;
g_return_if_fail (window != NULL);
private = (GdkWindowObject*) window;
if (!private->destroyed)
{
if (GDK_WINDOW_IS_MAPPED (window))
gdk_synthesize_window_state (window,
0,
GDK_WINDOW_STATE_WITHDRAWN);
g_assert (!GDK_WINDOW_IS_MAPPED (window));
XWithdrawWindow (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window), 0);
}
}
/**
* 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)
{
GdkWindowObject *private = (GdkWindowObject *)window;
GdkWindowImplX11 *impl;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
impl = GDK_WINDOW_IMPL_X11 (private->impl);
if (!GDK_WINDOW_DESTROYED (window))
{
if (GDK_WINDOW_TYPE (private) == GDK_WINDOW_CHILD)
_gdk_window_move_resize_child (window, x, y,
impl->width, impl->height);
else
{
XMoveWindow (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
x, y);
}
}
}
/**
* 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)
{
GdkWindowObject *private;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (width < 1)
width = 1;
if (height < 1)
height = 1;
private = (GdkWindowObject*) window;
if (!GDK_WINDOW_DESTROYED (window))
{
if (GDK_WINDOW_TYPE (private) == GDK_WINDOW_CHILD)
_gdk_window_move_resize_child (window, private->x, private->y,
width, height);
else
{
GdkWindowImplX11 *impl = GDK_WINDOW_IMPL_X11 (private->impl);
if (width != impl->width || height != impl->height)
private->resize_count += 1;
XResizeWindow (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
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)
{
GdkWindowObject *private;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (width < 1)
width = 1;
if (height < 1)
height = 1;
private = (GdkWindowObject*) window;
if (!GDK_WINDOW_DESTROYED (window))
{
if (GDK_WINDOW_TYPE (private) == GDK_WINDOW_CHILD)
_gdk_window_move_resize_child (window, x, y, width, height);
else
{
GdkWindowImplX11 *impl = GDK_WINDOW_IMPL_X11 (private->impl);
if (width != impl->width || height != impl->height)
private->resize_count += 1;
XMoveResizeWindow (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
x, y, width, height);
}
}
}
/**
* gdk_window_reparent:
* @window: a #GdkWindow
* @new_parent: new parent to move @window into
* @x: X location inside the new parent
* @y: Y location inside the new parent
*
* Reparents @window into the given @new_parent. The window being
* reparented will be unmapped as a side effect.
*
**/
void
gdk_window_reparent (GdkWindow *window,
GdkWindow *new_parent,
gint x,
gint y)
{
GdkDisplay *display;
GdkWindowObject *window_private;
GdkWindowObject *parent_private;
GdkWindowObject *old_parent_private;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
g_return_if_fail (new_parent == NULL || GDK_IS_WINDOW (new_parent));
g_return_if_fail (GDK_WINDOW_TYPE (window) != GDK_WINDOW_ROOT);
if (!new_parent)
new_parent = gdk_screen_get_root_window (GDK_WINDOW_SCREEN (window));
display = GDK_WINDOW_DISPLAY (window);
window_private = (GdkWindowObject*) window;
old_parent_private = (GdkWindowObject*)window_private->parent;
parent_private = (GdkWindowObject*) new_parent;
if (!GDK_WINDOW_DESTROYED (window) && !GDK_WINDOW_DESTROYED (new_parent))
XReparentWindow (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
GDK_WINDOW_XID (new_parent),
x, y);
window_private->x = x;
window_private->y = y;
/* From here on, we treat parents of type GDK_WINDOW_FOREIGN like
* the root window
*/
if (GDK_WINDOW_TYPE (new_parent) == GDK_WINDOW_FOREIGN)
new_parent = gdk_screen_get_root_window (GDK_WINDOW_SCREEN (window));
window_private->parent = (GdkWindowObject *)new_parent;
/* Switch the window type as appropriate */
switch (GDK_WINDOW_TYPE (new_parent))
{
case GDK_WINDOW_ROOT:
case GDK_WINDOW_FOREIGN:
/* Now a toplevel */
if (GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD)
set_wm_protocols (window);
break;
case GDK_WINDOW_TOPLEVEL:
case GDK_WINDOW_CHILD:
case GDK_WINDOW_DIALOG:
case GDK_WINDOW_TEMP:
if (GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD &&
GDK_WINDOW_TYPE (window) != GDK_WINDOW_FOREIGN)
{
/* If we were being sophisticated, we'd save the old window type
* here, and restore it if we were reparented back to the
* toplevel. However, the difference between different types
* of toplevels only really matters on creation anyways.
*/
GDK_WINDOW_TYPE (window) = GDK_WINDOW_CHILD;
}
}
if (old_parent_private)
old_parent_private->children = g_list_remove (old_parent_private->children, window);
if ((old_parent_private &&
(!old_parent_private->guffaw_gravity != !parent_private->guffaw_gravity)) ||
(!old_parent_private && parent_private->guffaw_gravity))
gdk_window_set_static_win_gravity (window, parent_private->guffaw_gravity);
parent_private->children = g_list_prepend (parent_private->children, window);
_gdk_window_init_position (GDK_WINDOW (window_private));
}
void
_gdk_windowing_window_clear_area (GdkWindow *window,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (!GDK_WINDOW_DESTROYED (window))
XClearArea (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XID (window),
x, y, width, height, False);
}
void
_gdk_windowing_window_clear_area_e (GdkWindow *window,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (!GDK_WINDOW_DESTROYED (window))
XClearArea (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XID (window),
x, y, width, height, True);
}
/**
* 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)
{
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (!GDK_WINDOW_DESTROYED (window))
XRaiseWindow (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XID (window));
}
/**
* 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 (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (!GDK_WINDOW_DESTROYED (window))
XLowerWindow (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XID (window));
}
/**
* gdk_window_focus:
* @window: a #GdkWindow
* @timestamp: timestamp of the event triggering the window focus
*
* Sets keyboard focus to @window. If @window is not onscreen this
* will not work. 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)
{
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
if (gdk_x11_screen_supports_net_wm_hint (GDK_WINDOW_SCREEN (window),
gdk_atom_intern ("_NET_ACTIVE_WINDOW", FALSE)))
{
XEvent xev;
xev.xclient.type = ClientMessage;
xev.xclient.serial = 0;
xev.xclient.send_event = True;
xev.xclient.window = GDK_WINDOW_XWINDOW (window);
xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (GDK_WINDOW_DISPLAY (window),
"_NET_ACTIVE_WINDOW");
xev.xclient.format = 32;
xev.xclient.data.l[0] = 0;
xev.xclient.data.l[1] = 0;
xev.xclient.data.l[2] = 0;
xev.xclient.data.l[3] = 0;
xev.xclient.data.l[4] = 0;
XSendEvent (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XROOTWIN (window), False,
SubstructureRedirectMask | SubstructureNotifyMask,
&xev);
}
else
{
XRaiseWindow (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XID (window));
/* There is no way of knowing reliably whether we are viewable so we need
* to trap errors so we don't cause a BadMatch.
*/
gdk_error_trap_push ();
XSetInputFocus (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XWINDOW (window),
RevertToParent,
timestamp);
XSync (GDK_WINDOW_XDISPLAY (window), False);
gdk_error_trap_pop ();
}
}
/**
* gdk_window_set_hints:
* @window: a #GdkWindow
* @x: ignored field, does not matter
* @y: ignored field, does not matter
* @min_width: minimum width hint
* @min_height: minimum height hint
* @max_width: max width hint
* @max_height: max height hint
* @flags: logical OR of GDK_HINT_POS, GDK_HINT_MIN_SIZE, and/or GDK_HINT_MAX_SIZE
*
* This function is broken and useless and you should ignore it.
* If using GTK+, use functions such as gtk_window_resize(), gtk_window_set_size_request(),
* gtk_window_move(), gtk_window_parse_geometry(), and gtk_window_set_geometry_hints(),
* depending on what you're trying to do.
*
* If using GDK directly, use gdk_window_set_geometry_hints().
*
**/
void
gdk_window_set_hints (GdkWindow *window,
gint x,
gint y,
gint min_width,
gint min_height,
gint max_width,
gint max_height,
gint flags)
{
XSizeHints size_hints;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
size_hints.flags = 0;
if (flags & GDK_HINT_POS)
{
size_hints.flags |= PPosition;
size_hints.x = x;
size_hints.y = y;
}
if (flags & GDK_HINT_MIN_SIZE)
{
size_hints.flags |= PMinSize;
size_hints.min_width = min_width;
size_hints.min_height = min_height;
}
if (flags & GDK_HINT_MAX_SIZE)
{
size_hints.flags |= PMaxSize;
size_hints.max_width = max_width;
size_hints.max_height = max_height;
}
/* FIXME: Would it be better to delete this property if
* flags == 0? It would save space on the server
*/
XSetWMNormalHints (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
&size_hints);
}
/**
* 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)
{
GdkDisplay *display;
Atom atom;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
display = gdk_drawable_get_display (window);
switch (hint)
{
case GDK_WINDOW_TYPE_HINT_DIALOG:
atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_WINDOW_TYPE_DIALOG");
break;
case GDK_WINDOW_TYPE_HINT_MENU:
atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_WINDOW_TYPE_MENU");
break;
case GDK_WINDOW_TYPE_HINT_TOOLBAR:
atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_WINDOW_TYPE_TOOLBAR");
break;
case GDK_WINDOW_TYPE_HINT_UTILITY:
atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_WINDOW_TYPE_UTILITY");
break;
case GDK_WINDOW_TYPE_HINT_SPLASHSCREEN:
atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_WINDOW_TYPE_SPLASH");
break;
case GDK_WINDOW_TYPE_HINT_DOCK:
atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_WINDOW_TYPE_DOCK");
break;
case GDK_WINDOW_TYPE_HINT_DESKTOP:
atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_WINDOW_TYPE_DESKTOP");
break;
default:
g_warning ("Unknown hint %d passed to gdk_window_set_type_hint", hint);
/* Fall thru */
case GDK_WINDOW_TYPE_HINT_NORMAL:
atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_WINDOW_TYPE_NORMAL");
break;
}
XChangeProperty (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_WINDOW_TYPE"),
XA_ATOM, 32, PropModeReplace,
(guchar *)&atom, 1);
}
static void
gdk_wmspec_change_state (gboolean add,
GdkWindow *window,
GdkAtom state1,
GdkAtom state2)
{
GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
XEvent xev;
#define _NET_WM_STATE_REMOVE 0 /* remove/unset property */
#define _NET_WM_STATE_ADD 1 /* add/set property */
#define _NET_WM_STATE_TOGGLE 2 /* toggle property */
xev.xclient.type = ClientMessage;
xev.xclient.serial = 0;
xev.xclient.send_event = True;
xev.xclient.window = GDK_WINDOW_XID (window);
xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE");
xev.xclient.format = 32;
xev.xclient.data.l[0] = add ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE;
xev.xclient.data.l[1] = gdk_x11_atom_to_xatom_for_display (display, state1);
xev.xclient.data.l[2] = gdk_x11_atom_to_xatom_for_display (display, state2);
xev.xclient.data.l[3] = 0;
xev.xclient.data.l[4] = 0;
XSendEvent (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XROOTWIN (window), False,
SubstructureRedirectMask | SubstructureNotifyMask,
&xev);
}
/**
* 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)
{
GdkWindowObject *private;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
private = (GdkWindowObject*) window;
private->modal_hint = modal;
if (GDK_WINDOW_IS_MAPPED (window))
gdk_wmspec_change_state (modal, window,
gdk_atom_intern ("_NET_WM_STATE_MODAL", FALSE),
0);
}
/**
* 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.
*
* Since: 2.2
**/
void
gdk_window_set_skip_taskbar_hint (GdkWindow *window,
gboolean skips_taskbar)
{
GdkWindowObject *private;
GdkWindowImplX11 *impl;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
private = (GdkWindowObject*) window;
impl = GDK_WINDOW_IMPL_X11 (private->impl);
impl->skip_taskbar_hint = skips_taskbar;
if (GDK_WINDOW_IS_MAPPED (window))
gdk_wmspec_change_state (skips_taskbar, window,
gdk_atom_intern ("_NET_WM_STATE_SKIP_TASKBAR", FALSE),
0);
}
/**
* 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.
*
* Since: 2.2
**/
void
gdk_window_set_skip_pager_hint (GdkWindow *window,
gboolean skips_pager)
{
GdkWindowObject *private;
GdkWindowImplX11 *impl;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
private = (GdkWindowObject*) window;
impl = GDK_WINDOW_IMPL_X11 (private->impl);
impl->skip_pager_hint = skips_pager;
if (GDK_WINDOW_IS_MAPPED (window))
gdk_wmspec_change_state (skips_pager, window,
gdk_atom_intern ("_NET_WM_STATE_SKIP_PAGER", FALSE),
0);
}
/**
* 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 or windows where override_redirect
* has been turned on via gdk_window_set_override_redirect()
* 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,
GdkGeometry *geometry,
GdkWindowHints geom_mask)
{
XSizeHints size_hints;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
size_hints.flags = 0;
if (geom_mask & GDK_HINT_POS)
{
size_hints.flags |= PPosition;
/* We need to initialize the following obsolete fields because KWM
* apparently uses these fields if they are non-zero.
* #@#!#!$!.
*/
size_hints.x = 0;
size_hints.y = 0;
}
if (geom_mask & GDK_HINT_USER_POS)
{
size_hints.flags |= USPosition;
}
if (geom_mask & GDK_HINT_USER_SIZE)
{
size_hints.flags |= USSize;
}
if (geom_mask & GDK_HINT_MIN_SIZE)
{
size_hints.flags |= PMinSize;
size_hints.min_width = geometry->min_width;
size_hints.min_height = geometry->min_height;
}
if (geom_mask & GDK_HINT_MAX_SIZE)
{
size_hints.flags |= PMaxSize;
size_hints.max_width = MAX (geometry->max_width, 1);
size_hints.max_height = MAX (geometry->max_height, 1);
}
if (geom_mask & GDK_HINT_BASE_SIZE)
{
size_hints.flags |= PBaseSize;
size_hints.base_width = geometry->base_width;
size_hints.base_height = geometry->base_height;
}
if (geom_mask & GDK_HINT_RESIZE_INC)
{
size_hints.flags |= PResizeInc;
size_hints.width_inc = geometry->width_inc;
size_hints.height_inc = geometry->height_inc;
}
if (geom_mask & GDK_HINT_ASPECT)
{
size_hints.flags |= PAspect;
if (geometry->min_aspect <= 1)
{
size_hints.min_aspect.x = 65536 * geometry->min_aspect;
size_hints.min_aspect.y = 65536;
}
else
{
size_hints.min_aspect.x = 65536;
size_hints.min_aspect.y = 65536 / geometry->min_aspect;;
}
if (geometry->max_aspect <= 1)
{
size_hints.max_aspect.x = 65536 * geometry->max_aspect;
size_hints.max_aspect.y = 65536;
}
else
{
size_hints.max_aspect.x = 65536;
size_hints.max_aspect.y = 65536 / geometry->max_aspect;;
}
}
if (geom_mask & GDK_HINT_WIN_GRAVITY)
{
size_hints.flags |= PWinGravity;
size_hints.win_gravity = geometry->win_gravity;
}
/* FIXME: Would it be better to delete this property if
* geom_mask == 0? It would save space on the server
*/
XSetWMNormalHints (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
&size_hints);
}
static void
gdk_window_get_geometry_hints (GdkWindow *window,
GdkGeometry *geometry,
GdkWindowHints *geom_mask)
{
XSizeHints size_hints;
glong junk_size_mask = 0;
g_return_if_fail (GDK_IS_WINDOW (window));
g_return_if_fail (geometry != NULL);
g_return_if_fail (geom_mask != NULL);
*geom_mask = 0;
if (GDK_WINDOW_DESTROYED (window))
return;
if (!XGetWMNormalHints (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
&size_hints,
&junk_size_mask))
return;
if (size_hints.flags & PMinSize)
{
*geom_mask |= GDK_HINT_MIN_SIZE;
geometry->min_width = size_hints.min_width;
geometry->min_height = size_hints.min_height;
}
if (size_hints.flags & PMaxSize)
{
*geom_mask |= GDK_HINT_MAX_SIZE;
geometry->max_width = MAX (size_hints.max_width, 1);
geometry->max_height = MAX (size_hints.max_height, 1);
}
if (size_hints.flags & PResizeInc)
{
*geom_mask |= GDK_HINT_RESIZE_INC;
geometry->width_inc = size_hints.width_inc;
geometry->height_inc = size_hints.height_inc;
}
if (size_hints.flags & PAspect)
{
*geom_mask |= GDK_HINT_ASPECT;
geometry->min_aspect = (gdouble) size_hints.min_aspect.x / (gdouble) size_hints.min_aspect.y;
geometry->max_aspect = (gdouble) size_hints.max_aspect.x / (gdouble) size_hints.max_aspect.y;
}
if (size_hints.flags & PWinGravity)
{
*geom_mask |= GDK_HINT_WIN_GRAVITY;
geometry->win_gravity = size_hints.win_gravity;
}
}
static gboolean
utf8_is_latin1 (const gchar *str)
{
const char *p = str;
while (*p)
{
gunichar ch = g_utf8_get_char (p);
if (ch > 0xff)
return FALSE;
p = g_utf8_next_char (p);
}
return TRUE;
}
/* Set the property to @utf8_str as STRING if the @utf8_str is fully
* convertable to STRING, otherwise, set it as compound text
*/
static void
set_text_property (GdkDisplay *display,
Window xwindow,
Atom property,
const gchar *utf8_str)
{
guchar *prop_text = NULL;
Atom prop_type;
gint prop_length;
gint prop_format;
if (utf8_is_latin1 (utf8_str))
{
prop_type = XA_STRING;
prop_text = gdk_utf8_to_string_target (utf8_str);
prop_length = prop_text ? strlen (prop_text) : 0;
prop_format = 8;
}
else
{
GdkAtom gdk_type;
gdk_utf8_to_compound_text_for_display (display,
utf8_str, &gdk_type, &prop_format,
&prop_text, &prop_length);
prop_type = gdk_x11_atom_to_xatom_for_display (display, gdk_type);
}
if (prop_text)
{
XChangeProperty (GDK_DISPLAY_XDISPLAY (display),
xwindow,
property,
prop_type, prop_format,
PropModeReplace, prop_text,
prop_length);
gdk_free_compound_text (prop_text);
}
}
/* Set WM_NAME and _NET_WM_NAME
*/
static void
set_wm_name (GdkDisplay *display,
Window xwindow,
const gchar *name)
{
XChangeProperty (GDK_DISPLAY_XDISPLAY (display), xwindow,
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_NAME"),
gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
PropModeReplace, name, strlen (name));
set_text_property (display, xwindow,
gdk_x11_get_xatom_by_name_for_display (display, "WM_NAME"),
name);
}
/**
* 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)
{
GdkDisplay *display;
Display *xdisplay;
Window xwindow;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
g_return_if_fail (title != NULL);
if (GDK_WINDOW_DESTROYED (window))
return;
display = gdk_drawable_get_display (window);
xdisplay = GDK_DISPLAY_XDISPLAY (display);
xwindow = GDK_WINDOW_XID (window);
set_wm_name (display, xwindow, title);
if (!gdk_window_icon_name_set (window))
{
XChangeProperty (xdisplay, xwindow,
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_ICON_NAME"),
gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
PropModeReplace, title, strlen (title));
set_text_property (display, xwindow,
gdk_x11_get_xatom_by_name_for_display (display, "WM_ICON_NAME"),
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)
{
GdkDisplay *display;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
display = gdk_drawable_get_display (window);
if (!GDK_WINDOW_DESTROYED (window))
{
if (role)
XChangeProperty (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name_for_display (display, "WM_WINDOW_ROLE"),
XA_STRING, 8, PropModeReplace, role, strlen (role));
else
XDeleteProperty (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name_for_display (display, "WM_WINDOW_ROLE"));
}
}
/**
* 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)
{
GdkWindowObject *private;
GdkWindowObject *parent_private;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
private = (GdkWindowObject*) window;
parent_private = (GdkWindowObject*) parent;
if (!GDK_WINDOW_DESTROYED (window) && !GDK_WINDOW_DESTROYED (parent))
XSetTransientForHint (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
GDK_WINDOW_XID (parent));
}
/**
* gdk_window_set_background:
* @window: a #GdkWindow
* @color: an allocated #GdkColor
*
* Sets the background color of @window. (However, when using GTK+,
* set the background of a widget with gtk_widget_modify_bg() - if
* you're an application - or gtk_style_set_background() - if you're
* implementing a custom widget.)
*
* The @color must be allocated; gdk_rgb_find_color() is the best way
* to allocate a color.
*
* See also gdk_window_set_back_pixmap().
*
**/
void
gdk_window_set_background (GdkWindow *window,
GdkColor *color)
{
GdkWindowObject *private = (GdkWindowObject *)window;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (!GDK_WINDOW_DESTROYED (window))
XSetWindowBackground (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window), color->pixel);
private->bg_color = *color;
if (private->bg_pixmap &&
private->bg_pixmap != GDK_PARENT_RELATIVE_BG &&
private->bg_pixmap != GDK_NO_BG)
g_object_unref (private->bg_pixmap);
private->bg_pixmap = NULL;
}
/**
* gdk_window_set_back_pixmap:
* @window: a #GdkWindow
* @pixmap: a #GdkPixmap, or %NULL
* @parent_relative: whether the tiling origin is at the origin of @window's parent
*
* Sets the background pixmap of @window. May also be used to set a background of
* "None" on @window, by setting a background pixmap of %NULL.
* A background pixmap will be tiled, positioning the first tile at the origin of
* @window, or if @parent_relative is %TRUE, the tiling will be done based on the
* origin of the parent window (useful to align tiles in a parent with tiles
* in a child).
*
* A background pixmap of %NULL means that the window will have no
* background. A window with no background will never have its
* background filled by the windowing system, instead the window will
* contain whatever pixels were already in the corresponding area of
* the display.
*
* The windowing system will normally fill a window with its background
* when the window is obscured then exposed, and when you call
* gdk_window_clear().
*
**/
void
gdk_window_set_back_pixmap (GdkWindow *window,
GdkPixmap *pixmap,
gboolean parent_relative)
{
GdkWindowObject *private = (GdkWindowObject *)window;
Pixmap xpixmap;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
g_return_if_fail (pixmap == NULL || !parent_relative);
g_return_if_fail (pixmap == NULL || gdk_drawable_get_depth (window) == gdk_drawable_get_depth (pixmap));
if (private->bg_pixmap &&
private->bg_pixmap != GDK_PARENT_RELATIVE_BG &&
private->bg_pixmap != GDK_NO_BG)
g_object_unref (private->bg_pixmap);
if (parent_relative)
{
xpixmap = ParentRelative;
private->bg_pixmap = GDK_PARENT_RELATIVE_BG;
}
else
{
if (pixmap)
{
g_object_ref (pixmap);
private->bg_pixmap = pixmap;
xpixmap = GDK_PIXMAP_XID (pixmap);
}
else
{
xpixmap = None;
private->bg_pixmap = GDK_NO_BG;
}
}
if (!GDK_WINDOW_DESTROYED (window))
XSetWindowBackgroundPixmap (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window), xpixmap);
}
/**
* gdk_window_set_cursor:
* @window: a #GdkWindow
* @cursor: a cursor
*
* Sets the mouse pointer for a #GdkWindow. Use gdk_cursor_new() or
* gdk_cursor_new_from_pixmap() to create the cursor.
* To make the cursor invisible, use gdk_cursor_new_from_pixmap() to create
* a cursor with no pixels in it. 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)
{
GdkCursorPrivate *cursor_private;
Cursor xcursor;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
cursor_private = (GdkCursorPrivate*) cursor;
if (!cursor)
xcursor = None;
else
xcursor = cursor_private->xcursor;
if (!GDK_WINDOW_DESTROYED (window))
XDefineCursor (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
xcursor);
}
/**
* gdk_window_get_geometry:
* @window: a #GdkWindow
* @x: return location for X coordinate of window (relative to its parent)
* @y: return location for Y coordinate of window (relative to its parent)
* @width: return location for width of window
* @height: return location for height of window
* @depth: return location for bit depth of window
*
* Any of the return location arguments to this function may be %NULL,
* if you aren't interested in getting the value of that field.
*
* The X and Y coordinates returned are relative to the parent window
* of @window, which for toplevels usually means relative to the
* window decorations (titlebar, etc.) rather than relative to the
* root window (screen-size background window).
*
* On the X11 platform, the geometry is obtained from the X server,
* so reflects the latest position of @window; this may be out-of-sync
* with the position of @window delivered in the most-recently-processed
* #GdkEventConfigure. gdk_window_get_position() in contrast gets the
* position from the most recent configure event.
*
**/
void
gdk_window_get_geometry (GdkWindow *window,
gint *x,
gint *y,
gint *width,
gint *height,
gint *depth)
{
Window root;
gint tx;
gint ty;
guint twidth;
guint theight;
guint tborder_width;
guint tdepth;
g_return_if_fail (window == NULL || GDK_IS_WINDOW (window));
if (!window)
{
GDK_NOTE (MULTIHEAD,
g_message ("gdk_window_get_geometry(): Window needs to be non-NULL to be multi head safe"));
window = gdk_screen_get_root_window ((gdk_screen_get_default ()));
}
if (!GDK_WINDOW_DESTROYED (window))
{
XGetGeometry (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
&root, &tx, &ty, &twidth, &theight, &tborder_width, &tdepth);
if (x)
*x = tx;
if (y)
*y = ty;
if (width)
*width = twidth;
if (height)
*height = theight;
if (depth)
*depth = tdepth;
}
}
/**
* gdk_window_get_origin:
* @window: a #GdkWindow
* @x: return location for X coordinate
* @y: return location for Y coordinate
*
* Obtains the position of a window in root window coordinates.
* (Compare with gdk_window_get_position() and
* gdk_window_get_geometry() which return the position of a window
* relative to its parent window.)
*
* Return value: not meaningful, ignore
**/
gint
gdk_window_get_origin (GdkWindow *window,
gint *x,
gint *y)
{
gint return_val;
Window child;
gint tx = 0;
gint ty = 0;
g_return_val_if_fail (window != NULL, 0);
if (!GDK_WINDOW_DESTROYED (window))
{
return_val = XTranslateCoordinates (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
GDK_WINDOW_XROOTWIN (window),
0, 0, &tx, &ty,
&child);
}
else
return_val = 0;
if (x)
*x = tx;
if (y)
*y = ty;
return return_val;
}
/**
* gdk_window_get_deskrelative_origin:
* @window: a toplevel #GdkWindow
* @x: return location for X coordinate
* @y: return location for Y coordinate
*
* This gets the origin of a #GdkWindow relative to
* an Enlightenment-window-manager desktop. As long as you don't
* assume that the user's desktop/workspace covers the entire
* root window (i.e. you don't assume that the desktop begins
* at root window coordinate 0,0) this function is not necessary.
* It's deprecated for that reason.
*
* Return value: not meaningful
**/
gboolean
gdk_window_get_deskrelative_origin (GdkWindow *window,
gint *x,
gint *y)
{
gboolean return_val = FALSE;
gint num_children, format_return;
Window win, *child, parent, root;
gint tx = 0;
gint ty = 0;
Atom type_return;
Atom atom;
gulong number_return, bytes_after_return;
guchar *data_return;
g_return_val_if_fail (window != NULL, FALSE);
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
if (!GDK_WINDOW_DESTROYED (window))
{
atom = gdk_x11_get_xatom_by_name_for_display (GDK_WINDOW_DISPLAY (window),
"ENLIGHTENMENT_DESKTOP");
win = GDK_WINDOW_XID (window);
while (XQueryTree (GDK_WINDOW_XDISPLAY (window), win, &root, &parent,
&child, (unsigned int *)&num_children))
{
if ((child) && (num_children > 0))
XFree (child);
if (!parent)
break;
else
win = parent;
if (win == root)
break;
data_return = NULL;
XGetWindowProperty (GDK_WINDOW_XDISPLAY (window), win, atom, 0, 0,
False, XA_CARDINAL, &type_return, &format_return,
&number_return, &bytes_after_return, &data_return);
if (type_return == XA_CARDINAL)
{
XFree (data_return);
break;
}
}
return_val = XTranslateCoordinates (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
win,
0, 0, &tx, &ty,
&root);
if (x)
*x = tx;
if (y)
*y = ty;
}
return return_val;
}
/**
* gdk_window_get_root_origin:
* @window: a toplevel #GdkWindow
* @x: return location for X position of window frame
* @y: 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;
g_return_if_fail (GDK_IS_WINDOW (window));
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: 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)
{
GdkWindowObject *private;
Window xwindow;
Window xparent;
Window root;
Window *children;
unsigned int nchildren;
g_return_if_fail (GDK_IS_WINDOW (window));
g_return_if_fail (rect != NULL);
private = (GdkWindowObject*) window;
rect->x = 0;
rect->y = 0;
rect->width = 1;
rect->height = 1;
if (GDK_WINDOW_DESTROYED (window))
return;
while (private->parent && ((GdkWindowObject*) private->parent)->parent)
private = (GdkWindowObject*) private->parent;
/* Refine our fallback answer a bit using local information */
rect->x = private->x;
rect->y = private->y;
gdk_drawable_get_size ((GdkDrawable *)private, &rect->width, &rect->height);
if (GDK_WINDOW_DESTROYED (private))
return;
gdk_error_trap_push();
xparent = GDK_WINDOW_XID (window);
do
{
xwindow = xparent;
if (!XQueryTree (GDK_WINDOW_XDISPLAY (window), xwindow,
&root, &xparent,
&children, &nchildren))
goto fail;
if (children)
XFree (children);
}
while (xparent != root);
if (xparent == root)
{
unsigned int ww, wh, wb, wd;
int wx, wy;
if (XGetGeometry (GDK_WINDOW_XDISPLAY (window), xwindow, &root, &wx, &wy, &ww, &wh, &wb, &wd))
{
rect->x = wx;
rect->y = wy;
rect->width = ww;
rect->height = wh;
}
}
fail:
gdk_error_trap_pop ();
}
void
_gdk_windowing_get_pointer (GdkDisplay *display,
GdkScreen **screen,
gint *x,
gint *y,
GdkModifierType *mask)
{
GdkScreen *default_screen;
Window root = None;
Window child;
int rootx, rooty;
int winx;
int winy;
unsigned int xmask;
if (display->closed)
return;
default_screen = gdk_display_get_default_screen (display);
XQueryPointer (GDK_SCREEN_XDISPLAY (default_screen),
GDK_SCREEN_XROOTWIN (default_screen),
&root, &child, &rootx, &rooty, &winx, &winy, &xmask);
if (root != None)
{
GdkWindow *gdk_root = gdk_window_lookup_for_display (display, root);
*screen = gdk_drawable_get_screen (gdk_root);
}
*x = rootx;
*y = rooty;
*mask = xmask;
}
GdkWindow*
_gdk_windowing_window_get_pointer (GdkDisplay *display,
GdkWindow *window,
gint *x,
gint *y,
GdkModifierType *mask)
{
GdkWindow *return_val;
Window root;
Window child;
int rootx, rooty;
int winx = 0;
int winy = 0;
unsigned int xmask = 0;
gint xoffset, yoffset;
g_return_val_if_fail (window == NULL || GDK_IS_WINDOW (window), NULL);
_gdk_windowing_window_get_offsets (window, &xoffset, &yoffset);
return_val = NULL;
if (!GDK_WINDOW_DESTROYED (window) &&
XQueryPointer (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
&root, &child, &rootx, &rooty, &winx, &winy, &xmask))
{
if (child)
return_val = gdk_window_lookup_for_display (GDK_WINDOW_DISPLAY (window), child);
}
*x = winx + xoffset;
*y = winy + yoffset;
*mask = xmask;
return return_val;
}
GdkWindow*
_gdk_windowing_window_at_pointer (GdkDisplay *display,
gint *win_x,
gint *win_y)
{
GdkWindow *window;
GdkScreen *screen;
Window root;
Window xwindow;
Window child;
Window xwindow_last = 0;
Display *xdisplay;
int rootx = -1, rooty = -1;
int winx, winy;
unsigned int xmask;
screen = gdk_display_get_default_screen (display);
xwindow = GDK_SCREEN_XROOTWIN (screen);
xdisplay = GDK_SCREEN_XDISPLAY (screen);
/* This function really only works if the mouse pointer is held still
* during its operation. If it moves from one leaf window to another
* than we'll end up with inaccurate values for win_x, win_y
* and the result.
*/
gdk_x11_display_grab (display);
XQueryPointer (xdisplay, xwindow,
&root, &child, &rootx, &rooty, &winx, &winy, &xmask);
if (root == xwindow)
xwindow = child;
else
xwindow = root;
while (xwindow)
{
xwindow_last = xwindow;
XQueryPointer (xdisplay, xwindow,
&root, &xwindow, &rootx, &rooty, &winx, &winy, &xmask);
}
gdk_x11_display_ungrab (display);
window = gdk_window_lookup_for_display (GDK_SCREEN_DISPLAY(screen),
xwindow_last);
*win_x = window ? winx : -1;
*win_y = window ? winy : -1;
return window;
}
/**
* gdk_window_get_events:
* @window: a #GdkWindow
*
* Gets the event mask for @window. See gdk_window_set_events().
*
* Return value: event mask for @window
**/
GdkEventMask
gdk_window_get_events (GdkWindow *window)
{
XWindowAttributes attrs;
GdkEventMask event_mask;
g_return_val_if_fail (window != NULL, 0);
g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
if (GDK_WINDOW_DESTROYED (window))
return 0;
else
{
XGetWindowAttributes (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
&attrs);
event_mask = x_event_mask_to_gdk_event_mask (attrs.your_event_mask);
GDK_WINDOW_OBJECT (window)->event_mask = event_mask;
return event_mask;
}
}
/**
* 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. For example, an event mask including #GDK_BUTTON_PRESS_MASK
* means the window should report button press events. The event mask
* is the bitwise OR of values from the #GdkEventMask enumeration.
*
**/
void
gdk_window_set_events (GdkWindow *window,
GdkEventMask event_mask)
{
long xevent_mask;
int i;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (!GDK_WINDOW_DESTROYED (window))
{
GDK_WINDOW_OBJECT (window)->event_mask = event_mask;
xevent_mask = StructureNotifyMask | PropertyChangeMask;
for (i = 0; i < _gdk_nenvent_masks; i++)
{
if (event_mask & (1 << (i + 1)))
xevent_mask |= _gdk_event_mask_table[i];
}
XSelectInput (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
xevent_mask);
}
}
static void
gdk_window_add_colormap_windows (GdkWindow *window)
{
GdkWindow *toplevel;
Window *old_windows;
Window *new_windows;
int i, count;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
toplevel = gdk_window_get_toplevel (window);
old_windows = NULL;
if (!XGetWMColormapWindows (GDK_WINDOW_XDISPLAY (toplevel),
GDK_WINDOW_XID (toplevel),
&old_windows, &count))
{
count = 0;
}
for (i = 0; i < count; i++)
if (old_windows[i] == GDK_WINDOW_XID (window))
{
XFree (old_windows);
return;
}
new_windows = g_new (Window, count + 1);
for (i = 0; i < count; i++)
new_windows[i] = old_windows[i];
new_windows[count] = GDK_WINDOW_XID (window);
XSetWMColormapWindows (GDK_WINDOW_XDISPLAY (toplevel),
GDK_WINDOW_XID (toplevel),
new_windows, count + 1);
g_free (new_windows);
if (old_windows)
XFree (old_windows);
}
static gboolean
gdk_window_have_shape_ext (GdkDisplay *display)
{
GdkDisplayX11 *display_x11;
g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
display_x11 = GDK_DISPLAY_X11 (display);
if (display_x11->have_shape == GDK_UNKNOWN)
{
int ignore;
if (XQueryExtension (display_x11->xdisplay, "SHAPE", &ignore, &ignore, &ignore))
display_x11->have_shape = GDK_YES;
else
display_x11->have_shape = GDK_NO;
}
return (display_x11->have_shape == GDK_YES);
}
#define WARN_SHAPE_TOO_BIG() g_warning ("GdkWindow is too large to allow the use of shape masks or shape regions.")
/*
* This needs the X11 shape extension.
* If not available, shaped windows will look
* ugly, but programs still work. Stefan Wille
*/
/**
* gdk_window_shape_combine_mask:
* @window: a #GdkWindow
* @mask: shape mask
* @x: X position of shape mask with respect to @window
* @y: Y position of shape mask with respect to @window
*
* Applies a shape mask to @window. Pixels in @window corresponding to
* set bits in the @mask will be visible; pixels in @window
* corresponding to unset bits in the @mask will be transparent. This
* gives a non-rectangular window.
*
* If @mask is %NULL, the shape mask will be unset, and the @x/@y
* parameters are not used.
*
* On the X11 platform, this uses an X server extension which is
* widely available on most common platforms, but not available on
* very old X servers, and occasionally the implementation will be
* buggy. On servers without the shape extension, this function
* will do nothing.
*
* This function works on both toplevel and child windows.
*
**/
void
gdk_window_shape_combine_mask (GdkWindow *window,
GdkBitmap *mask,
gint x, gint y)
{
Pixmap pixmap;
gint xoffset, yoffset;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
#ifdef HAVE_SHAPE_EXT
if (GDK_WINDOW_DESTROYED (window))
return;
_gdk_windowing_window_get_offsets (window, &xoffset, &yoffset);
if (xoffset != 0 || yoffset != 0)
{
WARN_SHAPE_TOO_BIG ();
return;
}
if (gdk_window_have_shape_ext (GDK_WINDOW_DISPLAY (window)))
{
if (mask)
{
pixmap = GDK_PIXMAP_XID (mask);
}
else
{
x = 0;
y = 0;
pixmap = None;
}
XShapeCombineMask (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
ShapeBounding,
x, y,
pixmap,
ShapeSet);
}
#endif /* HAVE_SHAPE_EXT */
}
/**
* gdk_window_shape_combine_region:
* @window: a #GdkWindow
* @shape_region: region of window to be non-transparent
* @offset_x: X position of @shape_region in @window coordinates
* @offset_y: Y position of @shape_region in @window coordinates
*
* Makes pixels in @window outside @shape_region be transparent,
* so that the window may be nonrectangular. See also
* gdk_window_shape_combine_mask() to use a bitmap as the mask.
*
* If @shape_region is %NULL, the shape will be unset, so the whole
* window will be opaque again. @offset_x and @offset_y are ignored
* if @shape_region is %NULL.
*
* On the X11 platform, this uses an X server extension which is
* widely available on most common platforms, but not available on
* very old X servers, and occasionally the implementation will be
* buggy. On servers without the shape extension, this function
* will do nothing.
*
* This function works on both toplevel and child windows.
*
**/
void
gdk_window_shape_combine_region (GdkWindow *window,
GdkRegion *shape_region,
gint offset_x,
gint offset_y)
{
gint xoffset, yoffset;
g_return_if_fail (GDK_IS_WINDOW (window));
#ifdef HAVE_SHAPE_EXT
if (GDK_WINDOW_DESTROYED (window))
return;
_gdk_windowing_window_get_offsets (window, &xoffset, &yoffset);
if (xoffset != 0 || yoffset != 0)
{
WARN_SHAPE_TOO_BIG ();
return;
}
if (shape_region == NULL)
{
/* Use NULL mask to unset the shape */
gdk_window_shape_combine_mask (window, NULL, 0, 0);
return;
}
if (gdk_window_have_shape_ext (GDK_WINDOW_DISPLAY (window)))
{
gint n_rects = 0;
XRectangle *xrects = NULL;
_gdk_region_get_xrectangles (shape_region,
0, 0,
&xrects, &n_rects);
XShapeCombineRectangles (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
ShapeBounding,
offset_x, offset_y,
xrects, n_rects,
ShapeSet,
YXBanded);
g_free (xrects);
}
#endif /* HAVE_SHAPE_EXT */
}
/**
* gdk_window_set_override_redirect:
* @window: a toplevel #GdkWindow
* @override_redirect: %TRUE if window should be override redirect
*
* An override redirect window is not under the control of the window manager.
* This means it won't have a titlebar, won't be minimizable, etc. - it will
* be entirely under the control of the application. The window manager
* can't see the override redirect window at all.
*
* Override redirect should only be used for short-lived temporary
* windows, such as popup menus. #GtkMenu uses an override redirect
* window in its implementation, for example.
*
**/
void
gdk_window_set_override_redirect (GdkWindow *window,
gboolean override_redirect)
{
XSetWindowAttributes attr;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (!GDK_WINDOW_DESTROYED (window))
{
attr.override_redirect = (override_redirect == FALSE)?False:True;
XChangeWindowAttributes (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
CWOverrideRedirect,
&attr);
}
}
/**
* gdk_window_set_icon_list:
* @window: The #GdkWindow toplevel window to set the icon of.
* @pixbufs: A list of pixbufs, 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.
*
**/
void
gdk_window_set_icon_list (GdkWindow *window,
GList *pixbufs)
{
gulong *data;
guchar *pixels;
gulong *p;
gint size;
GList *l;
GdkPixbuf *pixbuf;
gint width, height, stride;
gint x, y;
gint n_channels;
GdkDisplay *display;
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
display = gdk_drawable_get_display (window);
l = pixbufs;
size = 0;
while (l)
{
pixbuf = l->data;
g_return_if_fail (GDK_IS_PIXBUF (pixbuf));
width = gdk_pixbuf_get_width (pixbuf);
height = gdk_pixbuf_get_height (pixbuf);
size += 2 + width * height;
l = g_list_next (l);
}
data = g_malloc (size * sizeof (gulong));
l = pixbufs;
p = data;
while (l)
{
pixbuf = l->data;
width = gdk_pixbuf_get_width (pixbuf);
height = gdk_pixbuf_get_height (pixbuf);
stride = gdk_pixbuf_get_rowstride (pixbuf);
n_channels = gdk_pixbuf_get_n_channels (pixbuf);
*p++ = width;
*p++ = height;
pixels = gdk_pixbuf_get_pixels (pixbuf);
for (y = 0; y < height; y++)
{
for (x = 0; x < width; x++)
{
guchar r, g, b, a;
r = pixels[y*stride + x*n_channels + 0];
g = pixels[y*stride + x*n_channels + 1];
b = pixels[y*stride + x*n_channels + 2];
if (n_channels >= 4)
a = pixels[y*stride + x*n_channels + 3];
else
a = 255;
*p++ = a << 24 | r << 16 | g << 8 | b ;
}
}
l = g_list_next (l);
}
if (size > 0)
{
XChangeProperty (GDK_DISPLAY_XDISPLAY (display),
GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_ICON"),
XA_CARDINAL, 32,
PropModeReplace,
(guchar*) data, size);
}
else
{
XDeleteProperty (GDK_DISPLAY_XDISPLAY (display),
GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_ICON"));
}
g_free (data);
}
/**
* gdk_window_set_icon:
* @window: a toplevel #GdkWindow
* @icon_window: a #GdkWindow to use for the icon, or %NULL to unset
* @pixmap: a #GdkPixmap to use as the icon, or %NULL to unset
* @mask: a 1-bit pixmap (#GdkBitmap) to use as mask for @pixmap, or %NULL to have none
*
* Sets the icon of @window as a pixmap or window. If using GTK+, investigate
* gtk_window_set_default_icon_list() first, and then gtk_window_set_icon_list()
* and gtk_window_set_icon(). If those don't meet your needs, look at
* gdk_window_set_icon_list(). Only if all those are too high-level do you
* want to fall back to gdk_window_set_icon().
*
**/
void
gdk_window_set_icon (GdkWindow *window,
GdkWindow *icon_window,
GdkPixmap *pixmap,
GdkBitmap *mask)
{
XWMHints *wm_hints;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
wm_hints = XGetWMHints (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window));
if (!wm_hints)
wm_hints = XAllocWMHints ();
if (icon_window != NULL)
{
wm_hints->flags |= IconWindowHint;
wm_hints->icon_window = GDK_WINDOW_XID (icon_window);
}
if (pixmap != NULL)
{
wm_hints->flags |= IconPixmapHint;
wm_hints->icon_pixmap = GDK_PIXMAP_XID (pixmap);
}
if (mask != NULL)
{
wm_hints->flags |= IconMaskHint;
wm_hints->icon_mask = GDK_PIXMAP_XID (mask);
}
XSetWMHints (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window), wm_hints);
XFree (wm_hints);
}
static gboolean
gdk_window_icon_name_set (GdkWindow *window)
{
return GPOINTER_TO_UINT (g_object_get_qdata (G_OBJECT (window),
g_quark_from_static_string ("gdk-icon-name-set")));
}
/**
* gdk_window_set_icon_name:
* @window: a toplevel #GdkWindow
* @name: 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.
*
**/
void
gdk_window_set_icon_name (GdkWindow *window,
const gchar *name)
{
GdkDisplay *display;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
display = gdk_drawable_get_display (window);
g_object_set_qdata (G_OBJECT (window), g_quark_from_static_string ("gdk-icon-name-set"),
GUINT_TO_POINTER (TRUE));
XChangeProperty (GDK_DISPLAY_XDISPLAY (display),
GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_ICON_NAME"),
gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
PropModeReplace, name, strlen (name));
set_text_property (display, GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name_for_display (display, "WM_ICON_NAME"),
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)
{
GdkWindowObject *private;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
private = (GdkWindowObject*) window;
if (GDK_WINDOW_IS_MAPPED (window))
{
XIconifyWindow (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XWINDOW (window),
gdk_screen_get_number (GDK_WINDOW_SCREEN (window)));
}
else
{
/* Flip our client side flag, the real work happens on map. */
gdk_synthesize_window_state (window,
0,
GDK_WINDOW_STATE_ICONIFIED);
}
}
/**
* 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)
{
GdkWindowObject *private;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
private = (GdkWindowObject*) window;
if (GDK_WINDOW_IS_MAPPED (window))
{
gdk_window_show (window);
}
else
{
/* Flip our client side flag, the real work happens on map. */
gdk_synthesize_window_state (window,
GDK_WINDOW_STATE_ICONIFIED,
0);
}
}
/**
* 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)
{
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
if (GDK_WINDOW_IS_MAPPED (window))
{
/* "stick" means stick to all desktops _and_ do not scroll with the
* viewport. i.e. glue to the monitor glass in all cases.
*/
XEvent xev;
/* Request stick during viewport scroll */
gdk_wmspec_change_state (TRUE, window,
gdk_atom_intern ("_NET_WM_STATE_STICKY", FALSE),
0);
/* Request desktop 0xFFFFFFFF */
xev.xclient.type = ClientMessage;
xev.xclient.serial = 0;
xev.xclient.send_event = True;
xev.xclient.window = GDK_WINDOW_XWINDOW (window);
xev.xclient.display = GDK_WINDOW_XDISPLAY (window);
xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (GDK_WINDOW_DISPLAY (window),
"_NET_WM_DESKTOP");
xev.xclient.format = 32;
xev.xclient.data.l[0] = 0xFFFFFFFF;
xev.xclient.data.l[1] = 0;
xev.xclient.data.l[2] = 0;
xev.xclient.data.l[3] = 0;
xev.xclient.data.l[4] = 0;
XSendEvent (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XROOTWIN (window), False,
SubstructureRedirectMask | SubstructureNotifyMask,
&xev);
}
else
{
/* Flip our client side flag, the real work happens on map. */
gdk_synthesize_window_state (window,
0,
GDK_WINDOW_STATE_STICKY);
}
}
/**
* 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)
{
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
if (GDK_WINDOW_IS_MAPPED (window))
{
XEvent xev;
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
gulong *current_desktop;
GdkDisplay *display = gdk_drawable_get_display (window);
/* Request unstick from viewport */
gdk_wmspec_change_state (FALSE, window,
gdk_atom_intern ("_NET_WM_STATE_STICKY", FALSE),
0);
/* Get current desktop, then set it; this is a race, but not
* one that matters much in practice.
*/
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XROOTWIN (window),
gdk_x11_get_xatom_by_name_for_display (display, "_NET_CURRENT_DESKTOP"),
0, G_MAXLONG,
False, XA_CARDINAL, &type, &format, &nitems,
&bytes_after, (guchar **)&current_desktop);
if (type == XA_CARDINAL)
{
xev.xclient.type = ClientMessage;
xev.xclient.serial = 0;
xev.xclient.send_event = True;
xev.xclient.window = GDK_WINDOW_XWINDOW (window);
xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP");
xev.xclient.format = 32;
xev.xclient.data.l[0] = *current_desktop;
xev.xclient.data.l[1] = 0;
xev.xclient.data.l[2] = 0;
xev.xclient.data.l[3] = 0;
xev.xclient.data.l[4] = 0;
XSendEvent (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XROOTWIN (window), False,
SubstructureRedirectMask | SubstructureNotifyMask,
&xev);
XFree (current_desktop);
}
}
else
{
/* Flip our client side flag, the real work happens on map. */
gdk_synthesize_window_state (window,
GDK_WINDOW_STATE_STICKY,
0);
}
}
/**
* 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)
{
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
if (GDK_WINDOW_IS_MAPPED (window))
gdk_wmspec_change_state (TRUE, window,
gdk_atom_intern ("_NET_WM_STATE_MAXIMIZED_VERT", FALSE),
gdk_atom_intern ("_NET_WM_STATE_MAXIMIZED_HORZ", FALSE));
else
gdk_synthesize_window_state (window,
0,
GDK_WINDOW_STATE_MAXIMIZED);
}
/**
* 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)
{
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
if (GDK_WINDOW_IS_MAPPED (window))
gdk_wmspec_change_state (FALSE, window,
gdk_atom_intern ("_NET_WM_STATE_MAXIMIZED_VERT", FALSE),
gdk_atom_intern ("_NET_WM_STATE_MAXIMIZED_HORZ", FALSE));
else
gdk_synthesize_window_state (window,
GDK_WINDOW_STATE_MAXIMIZED,
0);
}
/**
* 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.
*
* Since: 2.2
**/
void
gdk_window_fullscreen (GdkWindow *window)
{
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
if (GDK_WINDOW_IS_MAPPED (window))
gdk_wmspec_change_state (TRUE, window,
gdk_atom_intern ("_NET_WM_STATE_FULLSCREEN", FALSE),
GDK_NONE);
else
gdk_synthesize_window_state (window,
0,
GDK_WINDOW_STATE_FULLSCREEN);
}
/**
* 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.
*
* Since: 2.2
**/
void
gdk_window_unfullscreen (GdkWindow *window)
{
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
if (GDK_WINDOW_IS_MAPPED (window))
gdk_wmspec_change_state (FALSE, window,
gdk_atom_intern ("_NET_WM_STATE_FULLSCREEN", FALSE),
GDK_NONE);
else
gdk_synthesize_window_state (window,
GDK_WINDOW_STATE_FULLSCREEN,
0);
}
/**
* gdk_window_set_group:
* @window: a toplevel #GdkWindow
* @leader: 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.
* The group leader window may not be changed after a window has been
* mapped (with gdk_window_show() for example).
*
**/
void
gdk_window_set_group (GdkWindow *window,
GdkWindow *leader)
{
XWMHints *wm_hints;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
g_return_if_fail (leader != NULL);
g_return_if_fail (GDK_IS_WINDOW (leader));
if (GDK_WINDOW_DESTROYED (window) || GDK_WINDOW_DESTROYED (leader))
return;
wm_hints = XGetWMHints (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window));
if (!wm_hints)
wm_hints = XAllocWMHints ();
wm_hints->flags |= WindowGroupHint;
wm_hints->window_group = GDK_WINDOW_XID (leader);
XSetWMHints (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window), wm_hints);
XFree (wm_hints);
}
static MotifWmHints *
gdk_window_get_mwm_hints (GdkWindow *window)
{
GdkDisplay *display;
Atom hints_atom = None;
MotifWmHints *hints;
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
if (GDK_WINDOW_DESTROYED (window))
return NULL;
display = gdk_drawable_get_display (window);
hints_atom = gdk_x11_get_xatom_by_name_for_display (display, _XA_MOTIF_WM_HINTS);
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XID (window),
hints_atom, 0, sizeof (MotifWmHints)/sizeof (long),
False, AnyPropertyType, &type, &format, &nitems,
&bytes_after, (guchar **)&hints);
if (type == None)
return NULL;
return hints;
}
static void
gdk_window_set_mwm_hints (GdkWindow *window,
MotifWmHints *new_hints)
{
GdkDisplay *display;
Atom hints_atom = None;
MotifWmHints *hints;
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
if (GDK_WINDOW_DESTROYED (window))
return;
display = gdk_drawable_get_display (window);
hints_atom = gdk_x11_get_xatom_by_name_for_display (display, _XA_MOTIF_WM_HINTS);
XGetWindowProperty (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XID (window),
hints_atom, 0, sizeof (MotifWmHints)/sizeof (long),
False, AnyPropertyType, &type, &format, &nitems,
&bytes_after, (guchar **)&hints);
if (type == None)
hints = new_hints;
else
{
if (new_hints->flags & MWM_HINTS_FUNCTIONS)
{
hints->flags |= MWM_HINTS_FUNCTIONS;
hints->functions = new_hints->functions;
}
if (new_hints->flags & MWM_HINTS_DECORATIONS)
{
hints->flags |= MWM_HINTS_DECORATIONS;
hints->decorations = new_hints->decorations;
}
}
XChangeProperty (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XID (window),
hints_atom, hints_atom, 32, PropModeReplace,
(guchar *)hints, sizeof (MotifWmHints)/sizeof (long));
if (hints != new_hints)
XFree (hints);
}
/**
* 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)
{
MotifWmHints hints;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
hints.flags = MWM_HINTS_DECORATIONS;
hints.decorations = decorations;
gdk_window_set_mwm_hints (window, &hints);
}
/**
* gdk_window_get_decorations:
* @window: The toplevel #GdkWindow to get the decorations from
* @decorations: 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)
{
MotifWmHints *hints;
gboolean result = FALSE;
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
hints = gdk_window_get_mwm_hints (window);
if (hints)
{
if (hints->flags & MWM_HINTS_DECORATIONS)
{
if (decorations)
*decorations = hints->decorations;
result = TRUE;
}
XFree (hints);
}
return result;
}
/**
* gdk_window_set_functions:
* @window: a toplevel #GdkWindow
* @functions: bitmask of operations to allow on @window
*
* This function isn't really good for much. It sets the traditional
* Motif window manager hint for which operations the window manager
* should allow on a toplevel window. 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)
{
MotifWmHints hints;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
hints.flags = MWM_HINTS_FUNCTIONS;
hints.functions = functions;
gdk_window_set_mwm_hints (window, &hints);
}
#ifdef HAVE_SHAPE_EXT
/*
* propagate the shapes from all child windows of a GDK window to the parent
* window. Shamelessly ripped from Enlightenment's code
*
* - Raster
*/
struct _gdk_span
{
gint start;
gint end;
struct _gdk_span *next;
};
static void
gdk_add_to_span (struct _gdk_span **s,
gint x,
gint xx)
{
struct _gdk_span *ptr1, *ptr2, *noo, *ss;
gchar spanning;
ptr2 = NULL;
ptr1 = *s;
spanning = 0;
ss = NULL;
/* scan the spans for this line */
while (ptr1)
{
/* -- -> new span */
/* == -> existing span */
/* ## -> spans intersect */
/* if we are in the middle of spanning the span into the line */
if (spanning)
{
/* case: ---- ==== */
if (xx < ptr1->start - 1)
{
/* ends before next span - extend to here */
ss->end = xx;
return;
}
/* case: ----##=== */
else if (xx <= ptr1->end)
{
/* crosses into next span - delete next span and append */
ss->end = ptr1->end;
ss->next = ptr1->next;
g_free (ptr1);
return;
}
/* case: ---###--- */
else
{
/* overlaps next span - delete and keep checking */
ss->next = ptr1->next;
g_free (ptr1);
ptr1 = ss;
}
}
/* otherwise havent started spanning it in yet */
else
{
/* case: ---- ==== */
if (xx < ptr1->start - 1)
{
/* insert span here in list */
noo = g_malloc (sizeof (struct _gdk_span));
if (noo)
{
noo->start = x;
noo->end = xx;
noo->next = ptr1;
if (ptr2)
ptr2->next = noo;
else
*s = noo;
}
return;
}
/* case: ----##=== */
else if ((x < ptr1->start) && (xx <= ptr1->end))
{
/* expand this span to the left point of the new one */
ptr1->start = x;
return;
}
/* case: ===###=== */
else if ((x >= ptr1->start) && (xx <= ptr1->end))
{
/* throw the span away */
return;
}
/* case: ---###--- */
else if ((x < ptr1->start) && (xx > ptr1->end))
{
ss = ptr1;
spanning = 1;
ptr1->start = x;
ptr1->end = xx;
}
/* case: ===##---- */
else if ((x >= ptr1->start) && (x <= ptr1->end + 1) && (xx > ptr1->end))
{
ss = ptr1;
spanning = 1;
ptr1->end = xx;
}
/* case: ==== ---- */
/* case handled by next loop iteration - first case */
}
ptr2 = ptr1;
ptr1 = ptr1->next;
}
/* it started in the middle but spans beyond your current list */
if (spanning)
{
ptr2->end = xx;
return;
}
/* it does not start inside a span or in the middle, so add it to the end */
noo = g_malloc (sizeof (struct _gdk_span));
if (noo)
{
noo->start = x;
noo->end = xx;
if (ptr2)
{
noo->next = ptr2->next;
ptr2->next = noo;
}
else
{
noo->next = NULL;
*s = noo;
}
}
return;
}
static void
gdk_add_rectangles (Display *disp,
Window win,
struct _gdk_span **spans,
gint basew,
gint baseh,
gint x,
gint y)
{
gint a, k;
gint x1, y1, x2, y2;
gint rn, ord;
XRectangle *rl;
rl = XShapeGetRectangles (disp, win, ShapeBounding, &rn, &ord);
if (rl)
{
/* go through all clip rects in this window's shape */
for (k = 0; k < rn; k++)
{
/* for each clip rect, add it to each line's spans */
x1 = x + rl[k].x;
x2 = x + rl[k].x + (rl[k].width - 1);
y1 = y + rl[k].y;
y2 = y + rl[k].y + (rl[k].height - 1);
if (x1 < 0)
x1 = 0;
if (y1 < 0)
y1 = 0;
if (x2 >= basew)
x2 = basew - 1;
if (y2 >= baseh)
y2 = baseh - 1;
for (a = y1; a <= y2; a++)
{
if ((x2 - x1) >= 0)
gdk_add_to_span (&spans[a], x1, x2);
}
}
XFree (rl);
}
}
static void
gdk_propagate_shapes (Display *disp,
Window win,
gboolean merge)
{
Window rt, par, *list = NULL;
gint i, j, num = 0, num_rects = 0;
gint x, y, contig;
guint w, h, d;
gint baseh, basew;
XRectangle *rects = NULL;
struct _gdk_span **spans = NULL, *ptr1, *ptr2, *ptr3;
XWindowAttributes xatt;
XGetGeometry (disp, win, &rt, &x, &y, &w, &h, &d, &d);
if (h <= 0)
return;
basew = w;
baseh = h;
spans = g_malloc (sizeof (struct _gdk_span *) * h);
for (i = 0; i < h; i++)
spans[i] = NULL;
XQueryTree (disp, win, &rt, &par, &list, (unsigned int *)&num);
if (list)
{
/* go through all child windows and create/insert spans */
for (i = 0; i < num; i++)
{
if (XGetWindowAttributes (disp, list[i], &xatt) && (xatt.map_state != IsUnmapped))
if (XGetGeometry (disp, list[i], &rt, &x, &y, &w, &h, &d, &d))
gdk_add_rectangles (disp, list[i], spans, basew, baseh, x, y);
}
if (merge)
gdk_add_rectangles (disp, win, spans, basew, baseh, x, y);
/* go through the spans list and build a list of rects */
rects = g_malloc (sizeof (XRectangle) * 256);
num_rects = 0;
for (i = 0; i < baseh; i++)
{
ptr1 = spans[i];
/* go through the line for all spans */
while (ptr1)
{
rects[num_rects].x = ptr1->start;
rects[num_rects].y = i;
rects[num_rects].width = ptr1->end - ptr1->start + 1;
rects[num_rects].height = 1;
j = i + 1;
/* if there are more lines */
contig = 1;
/* while contigous rects (same start/end coords) exist */
while ((contig) && (j < baseh))
{
/* search next line for spans matching this one */
contig = 0;
ptr2 = spans[j];
ptr3 = NULL;
while (ptr2)
{
/* if we have an exact span match set contig */
if ((ptr2->start == ptr1->start) &&
(ptr2->end == ptr1->end))
{
contig = 1;
/* remove the span - not needed */
if (ptr3)
{
ptr3->next = ptr2->next;
g_free (ptr2);
ptr2 = NULL;
}
else
{
spans[j] = ptr2->next;
g_free (ptr2);
ptr2 = NULL;
}
break;
}
/* gone past the span point no point looking */
else if (ptr2->start < ptr1->start)
break;
if (ptr2)
{
ptr3 = ptr2;
ptr2 = ptr2->next;
}
}
/* if a contiguous span was found increase the rect h */
if (contig)
{
rects[num_rects].height++;
j++;
}
}
/* up the rect count */
num_rects++;
/* every 256 new rects increase the rect array */
if ((num_rects % 256) == 0)
rects = g_realloc (rects, sizeof (XRectangle) * (num_rects + 256));
ptr1 = ptr1->next;
}
}
/* set the rects as the shape mask */
if (rects)
{
XShapeCombineRectangles (disp, win, ShapeBounding, 0, 0, rects, num_rects,
ShapeSet, YXSorted);
g_free (rects);
}
XFree (list);
}
/* free up all the spans we made */
for (i = 0; i < baseh; i++)
{
ptr1 = spans[i];
while (ptr1)
{
ptr2 = ptr1;
ptr1 = ptr1->next;
g_free (ptr2);
}
}
g_free (spans);
}
#endif /* HAVE_SHAPE_EXT */
/**
* 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 (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
#ifdef HAVE_SHAPE_EXT
if (!GDK_WINDOW_DESTROYED (window) &&
gdk_window_have_shape_ext (GDK_WINDOW_DISPLAY (window)))
gdk_propagate_shapes (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window), FALSE);
#endif
}
/**
* gdk_window_merge_child_shapes:
* @window: a #GdkWindow
*
* Merges the shape masks for any child windows into the
* shape mask for @window. i.e. the union of all masks
* for @window and its children will become the new mask
* for @window. See gdk_window_shape_combine_mask().
*
* This function is distinct from gdk_window_set_child_shapes()
* because it includes @window's shape mask in the set of shapes to
* be merged.
*
**/
void
gdk_window_merge_child_shapes (GdkWindow *window)
{
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
#ifdef HAVE_SHAPE_EXT
if (!GDK_WINDOW_DESTROYED (window) &&
gdk_window_have_shape_ext (GDK_WINDOW_DISPLAY (window)))
gdk_propagate_shapes (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window), TRUE);
#endif
}
/* Support for windows that can be guffaw-scrolled
* (See http://www.gtk.org/~otaylor/whitepapers/guffaw-scrolling.txt)
*/
static gboolean
gdk_window_gravity_works (GdkWindow *window)
{
GdkDisplayX11 *display_x11 = GDK_DISPLAY_X11 (GDK_DRAWABLE_DISPLAY (window));
if (display_x11->gravity_works == GDK_UNKNOWN)
{
GdkWindowAttr attr;
GdkWindow *parent;
GdkWindow *child;
gint y;
/* This particular server apparently has a bug so that the test
* works but the actual code crashes it
*/
if ((!strcmp (XServerVendor (display_x11->xdisplay),
"Sun Microsystems, Inc.")) &&
(VendorRelease (display_x11->xdisplay) == 3400))
{
display_x11->gravity_works = GDK_NO;
return FALSE;
}
attr.window_type = GDK_WINDOW_TEMP;
attr.wclass = GDK_INPUT_OUTPUT;
attr.x = 0;
attr.y = 0;
attr.width = 100;
attr.height = 100;
attr.event_mask = 0;
parent = gdk_window_new (gdk_screen_get_root_window (GDK_DRAWABLE_SCREEN (window)),
&attr, GDK_WA_X | GDK_WA_Y);
attr.window_type = GDK_WINDOW_CHILD;
child = gdk_window_new (parent, &attr, GDK_WA_X | GDK_WA_Y);
gdk_window_set_static_win_gravity (child, TRUE);
gdk_window_resize (parent, 100, 110);
gdk_window_move (parent, 0, -10);
gdk_window_move_resize (parent, 0, 0, 100, 100);
gdk_window_resize (parent, 100, 110);
gdk_window_move (parent, 0, -10);
gdk_window_move_resize (parent, 0, 0, 100, 100);
gdk_window_get_geometry (child, NULL, &y, NULL, NULL, NULL);
gdk_window_destroy (parent);
gdk_window_destroy (child);
display_x11->gravity_works = ((y == -20) ? GDK_YES : GDK_NO);
}
return (display_x11->gravity_works == GDK_YES);
}
static void
gdk_window_set_static_bit_gravity (GdkWindow *window, gboolean on)
{
XSetWindowAttributes xattributes;
GdkWindowObject *private;
guint xattributes_mask = 0;
g_return_if_fail (window != NULL);
private = GDK_WINDOW_OBJECT (window);
if (private->input_only)
return;
xattributes.bit_gravity = StaticGravity;
xattributes_mask |= CWBitGravity;
xattributes.bit_gravity = on ? StaticGravity : ForgetGravity;
XChangeWindowAttributes (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
CWBitGravity, &xattributes);
}
static void
gdk_window_set_static_win_gravity (GdkWindow *window, gboolean on)
{
XSetWindowAttributes xattributes;
g_return_if_fail (window != NULL);
xattributes.win_gravity = on ? StaticGravity : NorthWestGravity;
XChangeWindowAttributes (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
CWWinGravity, &xattributes);
}
/**
* gdk_window_set_static_gravities:
* @window: a #GdkWindow
* @use_static: %TRUE to turn on static gravity
*
* Set the bit gravity of the given window to static, and flag it so
* all children get static subwindow gravity. This is used if you are
* implementing scary features that involve deep knowledge of the
* windowing system. Don't worry about it unless you have to.
*
* Return value: %TRUE if the server supports static gravity
**/
gboolean
gdk_window_set_static_gravities (GdkWindow *window,
gboolean use_static)
{
GdkWindowObject *private = (GdkWindowObject *)window;
GList *tmp_list;
g_return_val_if_fail (window != NULL, FALSE);
g_return_val_if_fail (GDK_IS_WINDOW (window), FALSE);
if (!use_static == !private->guffaw_gravity)
return TRUE;
if (use_static && !gdk_window_gravity_works (window))
return FALSE;
private->guffaw_gravity = use_static;
if (!GDK_WINDOW_DESTROYED (window))
{
gdk_window_set_static_bit_gravity (window, use_static);
tmp_list = private->children;
while (tmp_list)
{
gdk_window_set_static_win_gravity (tmp_list->data, use_static);
tmp_list = tmp_list->next;
}
}
return TRUE;
}
static void
wmspec_moveresize (GdkWindow *window,
gint direction,
gint root_x,
gint root_y,
guint32 timestamp)
{
GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
XEvent xev;
/* Release passive grab */
gdk_display_pointer_ungrab (display, timestamp);
xev.xclient.type = ClientMessage;
xev.xclient.serial = 0;
xev.xclient.send_event = True;
xev.xclient.window = GDK_WINDOW_XID (window);
xev.xclient.message_type =
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_MOVERESIZE");
xev.xclient.format = 32;
xev.xclient.data.l[0] = root_x;
xev.xclient.data.l[1] = root_y;
xev.xclient.data.l[2] = direction;
xev.xclient.data.l[3] = 0;
xev.xclient.data.l[4] = 0;
XSendEvent (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XROOTWIN (window), False,
SubstructureRedirectMask | SubstructureNotifyMask,
&xev);
}
typedef struct _MoveResizeData MoveResizeData;
struct _MoveResizeData
{
GdkDisplay *display;
GdkWindow *moveresize_window;
GdkWindow *moveresize_emulation_window;
gboolean is_resize;
GdkWindowEdge resize_edge;
gint moveresize_button;
gint moveresize_x;
gint moveresize_y;
gint moveresize_orig_x;
gint moveresize_orig_y;
gint moveresize_orig_width;
gint moveresize_orig_height;
GdkWindowHints moveresize_geom_mask;
GdkGeometry moveresize_geometry;
Time moveresize_process_time;
XEvent *moveresize_pending_event;
};
/* From the WM spec */
#define _NET_WM_MOVERESIZE_SIZE_TOPLEFT 0
#define _NET_WM_MOVERESIZE_SIZE_TOP 1
#define _NET_WM_MOVERESIZE_SIZE_TOPRIGHT 2
#define _NET_WM_MOVERESIZE_SIZE_RIGHT 3
#define _NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT 4
#define _NET_WM_MOVERESIZE_SIZE_BOTTOM 5
#define _NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT 6
#define _NET_WM_MOVERESIZE_SIZE_LEFT 7
#define _NET_WM_MOVERESIZE_MOVE 8
static void
wmspec_resize_drag (GdkWindow *window,
GdkWindowEdge edge,
gint button,
gint root_x,
gint root_y,
guint32 timestamp)
{
gint direction;
/* Let the compiler turn a switch into a table, instead
* of doing the table manually, this way is easier to verify.
*/
switch (edge)
{
case GDK_WINDOW_EDGE_NORTH_WEST:
direction = _NET_WM_MOVERESIZE_SIZE_TOPLEFT;
break;
case GDK_WINDOW_EDGE_NORTH:
direction = _NET_WM_MOVERESIZE_SIZE_TOP;
break;
case GDK_WINDOW_EDGE_NORTH_EAST:
direction = _NET_WM_MOVERESIZE_SIZE_TOPRIGHT;
break;
case GDK_WINDOW_EDGE_WEST:
direction = _NET_WM_MOVERESIZE_SIZE_LEFT;
break;
case GDK_WINDOW_EDGE_EAST:
direction = _NET_WM_MOVERESIZE_SIZE_RIGHT;
break;
case GDK_WINDOW_EDGE_SOUTH_WEST:
direction = _NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT;
break;
case GDK_WINDOW_EDGE_SOUTH:
direction = _NET_WM_MOVERESIZE_SIZE_BOTTOM;
break;
case GDK_WINDOW_EDGE_SOUTH_EAST:
direction = _NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT;
break;
default:
g_warning ("gdk_window_begin_resize_drag: bad resize edge %d!",
edge);
return;
break;
}
wmspec_moveresize (window, direction, root_x, root_y, timestamp);
}
static MoveResizeData *
get_move_resize_data (GdkDisplay *display,
gboolean create)
{
MoveResizeData *mv_resize;
static GQuark move_resize_quark = 0;
if (!move_resize_quark)
move_resize_quark = g_quark_from_static_string ("gdk-window-moveresize");
mv_resize = g_object_get_qdata (G_OBJECT (display), move_resize_quark);
if (!mv_resize && create)
{
mv_resize = g_new0 (MoveResizeData, 1);
mv_resize->display = display;
g_object_set_qdata (G_OBJECT (display), move_resize_quark, mv_resize);
}
return mv_resize;
}
static void
update_pos (MoveResizeData *mv_resize,
gint new_root_x,
gint new_root_y)
{
gint dx, dy;
dx = new_root_x - mv_resize->moveresize_x;
dy = new_root_y - mv_resize->moveresize_y;
if (mv_resize->is_resize)
{
gint x, y, w, h;
x = mv_resize->moveresize_orig_x;
y = mv_resize->moveresize_orig_y;
w = mv_resize->moveresize_orig_width;
h = mv_resize->moveresize_orig_height;
switch (mv_resize->resize_edge)
{
case GDK_WINDOW_EDGE_NORTH_WEST:
x += dx;
y += dy;
w -= dx;
h -= dy;
break;
case GDK_WINDOW_EDGE_NORTH:
y += dy;
h -= dy;
break;
case GDK_WINDOW_EDGE_NORTH_EAST:
y += dy;
h -= dy;
w += dx;
break;
case GDK_WINDOW_EDGE_SOUTH_WEST:
h += dy;
x += dx;
w -= dx;
break;
case GDK_WINDOW_EDGE_SOUTH_EAST:
w += dx;
h += dy;
break;
case GDK_WINDOW_EDGE_SOUTH:
h += dy;
break;
case GDK_WINDOW_EDGE_EAST:
w += dx;
break;
case GDK_WINDOW_EDGE_WEST:
x += dx;
w -= dx;
break;
}
x = MAX (x, 0);
y = MAX (y, 0);
w = MAX (w, 1);
h = MAX (h, 1);
if (mv_resize->moveresize_geom_mask)
{
gdk_window_constrain_size (&mv_resize->moveresize_geometry,
mv_resize->moveresize_geom_mask,
w, h, &w, &h);
}
gdk_window_move_resize (mv_resize->moveresize_window, x, y, w, h);
}
else
{
gint x, y;
x = mv_resize->moveresize_orig_x + dx;
y = mv_resize->moveresize_orig_y + dy;
gdk_window_move (mv_resize->moveresize_window, x, y);
}
}
static void
finish_drag (MoveResizeData *mv_resize)
{
gdk_window_destroy (mv_resize->moveresize_emulation_window);
mv_resize->moveresize_emulation_window = NULL;
mv_resize->moveresize_window = NULL;
if (mv_resize->moveresize_pending_event)
{
g_free (mv_resize->moveresize_pending_event);
mv_resize->moveresize_pending_event = NULL;
}
}
static int
lookahead_motion_predicate (Display *xdisplay,
XEvent *event,
XPointer arg)
{
gboolean *seen_release = (gboolean *)arg;
GdkDisplay *display = gdk_x11_lookup_xdisplay (xdisplay);
MoveResizeData *mv_resize = get_move_resize_data (display, FALSE);
if (*seen_release)
return False;
switch (event->xany.type)
{
case ButtonRelease:
*seen_release = TRUE;
break;
case MotionNotify:
mv_resize->moveresize_process_time = event->xmotion.time;
break;
default:
break;
}
return False;
}
static gboolean
moveresize_lookahead (MoveResizeData *mv_resize,
XEvent *event)
{
XEvent tmp_event;
gboolean seen_release = FALSE;
if (mv_resize->moveresize_process_time)
{
if (event->xmotion.time == mv_resize->moveresize_process_time)
{
mv_resize->moveresize_process_time = 0;
return TRUE;
}
else
return FALSE;
}
XCheckIfEvent (event->xany.display, &tmp_event,
lookahead_motion_predicate, (XPointer) & seen_release);
return mv_resize->moveresize_process_time == 0;
}
gboolean
_gdk_moveresize_handle_event (XEvent *event)
{
guint button_mask = 0;
GdkWindowObject *window_private;
GdkDisplay *display = gdk_x11_lookup_xdisplay (event->xany.display);
MoveResizeData *mv_resize = get_move_resize_data (display, FALSE);
if (!mv_resize || !mv_resize->moveresize_window)
return FALSE;
window_private = (GdkWindowObject *) mv_resize->moveresize_window;
button_mask = GDK_BUTTON1_MASK << (mv_resize->moveresize_button - 1);
switch (event->xany.type)
{
case MotionNotify:
if (window_private->resize_count > 0)
{
if (mv_resize->moveresize_pending_event)
*mv_resize->moveresize_pending_event = *event;
else
mv_resize->moveresize_pending_event =
g_memdup (event, sizeof (XEvent));
break;
}
if (!moveresize_lookahead (mv_resize, event))
break;
update_pos (mv_resize,
event->xmotion.x_root,
event->xmotion.y_root);
/* This should never be triggered in normal cases, but in the
* case where the drag started without an implicit grab being
* in effect, we could miss the release if it occurs before
* we grab the pointer; this ensures that we will never
* get a permanently stuck grab.
*/
if ((event->xmotion.state & button_mask) == 0)
finish_drag (mv_resize);
break;
case ButtonRelease:
update_pos (mv_resize,
event->xbutton.x_root,
event->xbutton.y_root);
if (event->xbutton.button == mv_resize->moveresize_button)
finish_drag (mv_resize);
break;
}
return TRUE;
}
gboolean
_gdk_moveresize_configure_done (GdkDisplay *display,
GdkWindow *window)
{
XEvent *tmp_event;
MoveResizeData *mv_resize = get_move_resize_data (display, FALSE);
if (!mv_resize || window != mv_resize->moveresize_window)
return FALSE;
if (mv_resize->moveresize_pending_event)
{
tmp_event = mv_resize->moveresize_pending_event;
mv_resize->moveresize_pending_event = NULL;
_gdk_moveresize_handle_event (tmp_event);
g_free (tmp_event);
}
return TRUE;
}
static void
create_moveresize_window (MoveResizeData *mv_resize,
guint32 timestamp)
{
GdkWindowAttr attributes;
gint attributes_mask;
GdkGrabStatus status;
g_assert (mv_resize->moveresize_emulation_window == NULL);
attributes.x = -100;
attributes.y = -100;
attributes.width = 10;
attributes.height = 10;
attributes.window_type = GDK_WINDOW_TEMP;
attributes.wclass = GDK_INPUT_ONLY;
attributes.override_redirect = TRUE;
attributes.event_mask = 0;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_NOREDIR;
mv_resize->moveresize_emulation_window =
gdk_window_new (gdk_screen_get_root_window (gdk_display_get_default_screen (mv_resize->display)),
&attributes,
attributes_mask);
gdk_window_show (mv_resize->moveresize_emulation_window);
status = gdk_pointer_grab (mv_resize->moveresize_emulation_window,
FALSE,
GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK,
NULL,
NULL,
timestamp);
if (status != GDK_GRAB_SUCCESS)
{
/* If this fails, some other client has grabbed the window
* already.
*/
gdk_window_destroy (mv_resize->moveresize_emulation_window);
mv_resize->moveresize_emulation_window = NULL;
}
mv_resize->moveresize_process_time = 0;
}
/*
Calculate mv_resize->moveresize_orig_x and mv_resize->moveresize_orig_y
so that calling XMoveWindow with these coordinates will not move the
window.
Note that this depends on the WM to implement ICCCM-compliant reference
point handling.
*/
static void
calculate_unmoving_origin (MoveResizeData *mv_resize)
{
GdkRectangle rect;
gint width, height;
if (mv_resize->moveresize_geom_mask & GDK_HINT_WIN_GRAVITY &&
mv_resize->moveresize_geometry.win_gravity == GDK_GRAVITY_STATIC)
{
gdk_window_get_origin (mv_resize->moveresize_window,
&mv_resize->moveresize_orig_x,
&mv_resize->moveresize_orig_y);
}
else
{
gdk_window_get_frame_extents (mv_resize->moveresize_window, &rect);
gdk_window_get_geometry (mv_resize->moveresize_window,
NULL, NULL, &width, &height, NULL);
switch (mv_resize->moveresize_geometry.win_gravity)
{
case GDK_GRAVITY_NORTH_WEST:
mv_resize->moveresize_orig_x = rect.x;
mv_resize->moveresize_orig_y = rect.y;
break;
case GDK_GRAVITY_NORTH:
mv_resize->moveresize_orig_x = rect.x + rect.width / 2 - width / 2;
mv_resize->moveresize_orig_y = rect.y;
break;
case GDK_GRAVITY_NORTH_EAST:
mv_resize->moveresize_orig_x = rect.x + rect.width - width;
mv_resize->moveresize_orig_y = rect.y;
break;
case GDK_GRAVITY_WEST:
mv_resize->moveresize_orig_x = rect.x;
mv_resize->moveresize_orig_y = rect.y + rect.height / 2 - height / 2;
break;
case GDK_GRAVITY_CENTER:
mv_resize->moveresize_orig_x = rect.x + rect.width / 2 - width / 2;
mv_resize->moveresize_orig_y = rect.y + rect.height / 2 - height / 2;
break;
case GDK_GRAVITY_EAST:
mv_resize->moveresize_orig_x = rect.x + rect.width - width;
mv_resize->moveresize_orig_y = rect.y + rect.height / 2 - height / 2;
break;
case GDK_GRAVITY_SOUTH_WEST:
mv_resize->moveresize_orig_x = rect.x;
mv_resize->moveresize_orig_y = rect.y + rect.height - height;
break;
case GDK_GRAVITY_SOUTH:
mv_resize->moveresize_orig_x = rect.x + rect.width / 2 - width / 2;
mv_resize->moveresize_orig_y = rect.y + rect.height - height;
break;
case GDK_GRAVITY_SOUTH_EAST:
mv_resize->moveresize_orig_x = rect.x + rect.width - width;
mv_resize->moveresize_orig_y = rect.y + rect.height - height;
break;
default:
mv_resize->moveresize_orig_x = rect.x;
mv_resize->moveresize_orig_y = rect.y;
break;
}
}
}
static void
emulate_resize_drag (GdkWindow *window,
GdkWindowEdge edge,
gint button,
gint root_x,
gint root_y,
guint32 timestamp)
{
MoveResizeData *mv_resize = get_move_resize_data (GDK_WINDOW_DISPLAY (window), TRUE);
mv_resize->is_resize = TRUE;
mv_resize->moveresize_button = button;
mv_resize->resize_edge = edge;
mv_resize->moveresize_x = root_x;
mv_resize->moveresize_y = root_y;
mv_resize->moveresize_window = g_object_ref (window);
gdk_drawable_get_size (window,
&mv_resize->moveresize_orig_width,
&mv_resize->moveresize_orig_height);
mv_resize->moveresize_geom_mask = 0;
gdk_window_get_geometry_hints (window,
&mv_resize->moveresize_geometry,
&mv_resize->moveresize_geom_mask);
calculate_unmoving_origin (mv_resize);
create_moveresize_window (mv_resize, timestamp);
}
static void
emulate_move_drag (GdkWindow *window,
gint button,
gint root_x,
gint root_y,
guint32 timestamp)
{
MoveResizeData *mv_resize = get_move_resize_data (GDK_WINDOW_DISPLAY (window), TRUE);
mv_resize->is_resize = FALSE;
mv_resize->moveresize_button = button;
mv_resize->moveresize_x = root_x;
mv_resize->moveresize_y = root_y;
mv_resize->moveresize_window = g_object_ref (window);
calculate_unmoving_origin (mv_resize);
create_moveresize_window (mv_resize, 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
* @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 spec
* (see http://www.freedesktop.org), but has a fallback implementation
* for other window managers.
*
**/
void
gdk_window_begin_resize_drag (GdkWindow *window,
GdkWindowEdge edge,
gint button,
gint root_x,
gint root_y,
guint32 timestamp)
{
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
if (gdk_x11_screen_supports_net_wm_hint (GDK_WINDOW_SCREEN (window),
gdk_atom_intern ("_NET_WM_MOVERESIZE", FALSE)))
wmspec_resize_drag (window, edge, button, root_x, root_y, timestamp);
else
emulate_resize_drag (window, edge, button, root_x, root_y, timestamp);
}
/**
* gdk_window_begin_move_drag:
* @window: a toplevel #GdkWindow
* @button: the button being used to 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 spec (see
* http://www.freedesktop.org), but has a fallback implementation for
* other window managers.
*
**/
void
gdk_window_begin_move_drag (GdkWindow *window,
gint button,
gint root_x,
gint root_y,
guint32 timestamp)
{
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
if (gdk_x11_screen_supports_net_wm_hint (GDK_WINDOW_SCREEN (window),
gdk_atom_intern ("_NET_WM_MOVERESIZE", FALSE)))
wmspec_moveresize (window, _NET_WM_MOVERESIZE_MOVE, root_x, root_y,
timestamp);
else
emulate_move_drag (window, button, root_x, root_y, timestamp);
}
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