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gtk2/gdk/x11/gdkwindow-x11.c
Owen Taylor 42634ee735 Redo Xft support to go directly to Picture objects instead of using 
Mon Nov  5 12:46:44 2001  Owen Taylor  <otaylor@redhat.com>

	* gdk/x11/gdkdrawable-x11.[ch] gdk/x11/gdkgc-x11.c
	gdk/x11/gdkpixmap-x11.c gdk/x11/gdkprivate-x11.h
	gdk/x11/gdkwindow-x11.c: Redo Xft support to go
	directly to Picture objects instead of using XftDraw.
	This fixes the problem where we weren't able to
	properly destroy XftDraw objects before destroying
	the accompanying windows, and probably improves
	efficiency a bit too. (#50214)
2001-11-05 17:48:58 +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 "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 (void);
static void gdk_window_set_static_win_gravity (GdkWindow *window,
gboolean on);
static gboolean gdk_window_have_shape_ext (void);
static gboolean gdk_window_icon_name_set (GdkWindow *window);
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;
if (!GDK_WINDOW_DESTROYED (wrapper))
{
gdk_xid_table_remove (draw_impl->xid);
if (window_impl->focus_window)
gdk_xid_table_remove (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;
XGetWindowAttributes (drawable_impl->xdisplay,
drawable_impl->xid,
&window_attributes);
drawable_impl->colormap =
gdk_colormap_lookup (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);
/* chain up */
GDK_DRAWABLE_CLASS (parent_class)->set_colormap (drawable, cmap);
if (cmap)
{
XSetWindowColormap (draw_impl->xdisplay,
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 (void)
{
GdkWindowObject *private;
GdkWindowImplX11 *impl;
GdkDrawableImplX11 *draw_impl;
XWindowAttributes xattributes;
unsigned int width;
unsigned int height;
unsigned int border_width;
unsigned int depth;
int x, y;
g_assert (_gdk_parent_root == NULL);
XGetGeometry (gdk_display, _gdk_root_window, &_gdk_root_window,
&x, &y, &width, &height, &border_width, &depth);
XGetWindowAttributes (gdk_display, _gdk_root_window, &xattributes);
_gdk_parent_root = g_object_new (GDK_TYPE_WINDOW, NULL);
private = (GdkWindowObject *)_gdk_parent_root;
impl = GDK_WINDOW_IMPL_X11 (private->impl);
draw_impl = GDK_DRAWABLE_IMPL_X11 (private->impl);
draw_impl->xdisplay = gdk_display;
draw_impl->xid = _gdk_root_window;
draw_impl->wrapper = GDK_DRAWABLE (private);
private->window_type = GDK_WINDOW_ROOT;
private->depth = depth;
impl->width = width;
impl->height = height;
gdk_xid_table_insert (&_gdk_root_window, _gdk_parent_root);
}
static Atom wm_client_leader_atom = None;
/**
* gdk_window_new:
* @parent: a #GdkWindow
* @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.
*
* 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;
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;
char *title;
int i;
long pid;
g_return_val_if_fail (attributes != NULL, NULL);
if (!parent)
parent = _gdk_parent_root;
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);
xdisplay = draw_impl->xdisplay = GDK_WINDOW_XDISPLAY (parent);
/* 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_parent_root;
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_visual_get_system ();
xvisual = ((GdkVisualPrivate*) visual)->xvisual;
xattributes.event_mask = StructureNotifyMask;
for (i = 0; i < _gdk_nenvent_masks; i++)
{
if (attributes->event_mask & (1 << (i + 1)))
xattributes.event_mask |= _gdk_event_mask_table[i];
}
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_root_window;
}
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;
gdk_colormap_ref (attributes->colormap);
}
else
{
if ((((GdkVisualPrivate*)gdk_visual_get_system ())->xvisual) == xvisual)
{
draw_impl->colormap =
gdk_colormap_get_system ();
gdk_colormap_ref (draw_impl->colormap);
}
else
{
draw_impl->colormap =
gdk_colormap_new (visual, FALSE);
}
}
private->bg_color.pixel = BlackPixel (gdk_display, _gdk_screen);
xattributes.background_pixel = private->bg_color.pixel;
private->bg_pixmap = NULL;
xattributes.border_pixel = BlackPixel (gdk_display, _gdk_screen);
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_colormap_get_system ();
gdk_colormap_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);
gdk_drawable_ref (window);
gdk_xid_table_insert (&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:
XSetWMProtocols (xdisplay, xid,
_gdk_wm_window_protocols, 3);
break;
case GDK_WINDOW_CHILD:
if ((attributes->wclass == GDK_INPUT_OUTPUT) &&
(draw_impl->colormap != gdk_colormap_get_system ()) &&
(draw_impl->colormap != gdk_window_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 (&impl->focus_window, window);
}
size_hints.flags = PSize;
size_hints.width = impl->width;
size_hints.height = impl->height;
wm_hints.flags = StateHint | WindowGroupHint;
wm_hints.window_group = _gdk_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);
if (!wm_client_leader_atom)
wm_client_leader_atom = gdk_x11_get_xatom_by_name ("WM_CLIENT_LEADER");
/* 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 ("_NET_WM_PID"),
XA_CARDINAL, 32,
PropModeReplace,
(guchar *)&pid, 1);
XChangeProperty (xdisplay, xid,
wm_client_leader_atom,
XA_WINDOW, 32, PropModeReplace,
(guchar*) &_gdk_leader_window, 1);
if (attributes_mask & GDK_WA_TITLE)
title = attributes->title;
else
title = g_get_prgname ();
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;
}
/**
* gdk_window_foreign_new:
* @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.
**/
GdkWindow *
gdk_window_foreign_new (GdkNativeWindow anid)
{
GdkWindow *window;
GdkWindowObject *private;
GdkWindowImplX11 *impl;
GdkDrawableImplX11 *draw_impl;
XWindowAttributes attrs;
Window root, parent;
Window *children = NULL;
guint nchildren;
gboolean result;
gdk_error_trap_push ();
result = XGetWindowAttributes (gdk_display, 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 (gdk_display, 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);
private->parent = gdk_xid_table_lookup (parent);
if (!private->parent || GDK_WINDOW_TYPE (private->parent) == GDK_WINDOW_FOREIGN)
private->parent = (GdkWindowObject *)_gdk_parent_root;
private->parent->children = g_list_prepend (private->parent->children, window);
draw_impl->xid = anid;
draw_impl->xdisplay = gdk_display;
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;
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));
gdk_drawable_ref (window);
gdk_xid_table_insert (&GDK_WINDOW_XID (window), window);
return window;
}
/**
* 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);
if (draw_impl->picture)
XRenderFreePicture (draw_impl->xdisplay, draw_impl->picture);
}
#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 ("WM_PROTOCOLS");
xevent.format = 32;
xevent.data.l[0] = gdk_x11_get_xatom_by_name ("WM_DELETE_WINDOW");
xevent.data.l[1] = CurrentTime;
XSendEvent (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
False, 0, (XEvent *)&xevent);
gdk_flush ();
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_XID (window));
if (window_impl->focus_window)
gdk_xid_table_remove (window_impl->focus_window);
gdk_drawable_unref (window);
}
static void
set_initial_hints (GdkWindow *window)
{
GdkWindowObject *private;
Atom atoms[5];
gint i;
private = (GdkWindowObject*) window;
if (private->state & GDK_WINDOW_STATE_ICONIFIED)
{
XWMHints *wm_hints;
wm_hints = XGetWMHints (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window));
if (!wm_hints)
wm_hints = XAllocWMHints ();
wm_hints->flags |= StateHint;
wm_hints->initial_state = IconicState;
XSetWMHints (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window), 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 ("_NET_WM_STATE_MAXIMIZED_VERT");
++i;
atoms[i] = gdk_x11_get_xatom_by_name ("_NET_WM_STATE_MAXIMIZED_HORZ");
++i;
}
if (private->state & GDK_WINDOW_STATE_STICKY)
{
atoms[i] = gdk_x11_get_xatom_by_name ("_NET_WM_STATE_STICKY");
++i;
}
if (private->modal_hint)
{
atoms[i] = gdk_x11_get_xatom_by_name ("_NET_WM_STATE_MODAL");
++i;
}
if (i > 0)
{
XChangeProperty (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name ("_NET_WM_STATE"),
XA_ATOM, 32, PropModeReplace,
(guchar*) atoms, i);
}
if (private->state & GDK_WINDOW_STATE_STICKY)
{
atoms[0] = 0xFFFFFFFF;
XChangeProperty (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name ("_NET_WM_DESKTOP"),
XA_CARDINAL, 32, PropModeReplace,
(guchar*) atoms, 1);
}
}
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;
/* 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).
* Normally done automatically by gtk_widget_hide() called on a #GtkWindow.
*
**/
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 youu 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)
{
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_parent_root;
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);
/* 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_parent_root;
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)
{
GDK_WINDOW_TYPE (window) = GDK_WINDOW_TOPLEVEL;
XSetWMProtocols (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
_gdk_wm_window_protocols, 3);
}
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.
* 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.
* 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_net_wm_supports (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.display = gdk_display;
xev.xclient.message_type = gdk_x11_get_xatom_by_name ("_NET_ACTIVE_WINDOW");
xev.xclient.format = 32;
xev.xclient.data.l[0] = 0;
XSendEvent (gdk_display, _gdk_root_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),
RevertToNone,
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 #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)
{
Atom atom;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
switch (hint)
{
case GDK_WINDOW_TYPE_HINT_DIALOG:
atom = gdk_x11_get_xatom_by_name ("_NET_WM_WINDOW_TYPE_DIALOG");
break;
case GDK_WINDOW_TYPE_HINT_MENU:
atom = gdk_x11_get_xatom_by_name ("_NET_WM_WINDOW_TYPE_MENU");
break;
case GDK_WINDOW_TYPE_HINT_TOOLBAR:
atom = gdk_x11_get_xatom_by_name ("_NET_WM_WINDOW_TYPE_TOOLBAR");
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 ("_NET_WM_WINDOW_TYPE_NORMAL");
break;
}
XChangeProperty (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name ("_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)
{
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.display = gdk_display;
xev.xclient.window = GDK_WINDOW_XID (window);
xev.xclient.message_type = gdk_x11_get_xatom_by_name ("_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 (state1);
xev.xclient.data.l[2] = gdk_x11_atom_to_xatom (state2);
XSendEvent (gdk_display, _gdk_root_window, False,
SubstructureRedirectMask | SubstructureNotifyMask,
&xev);
}
/**
* gdk_window_set_modal_hint:
* @window: A #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_geometry_hints:
* @window: a #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.
*
**/
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 (GdkWindow *window,
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 = strlen (prop_text);
prop_format = 8;
}
else
{
GdkAtom gdk_type;
gdk_utf8_to_compound_text (utf8_str, &gdk_type, &prop_format,
&prop_text, &prop_length);
prop_type = gdk_x11_atom_to_xatom (gdk_type);
}
if (prop_text)
{
XChangeProperty (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
property,
prop_type, prop_format,
PropModeReplace, prop_text,
prop_length);
g_free (prop_text);
}
}
/**
* gdk_window_set_title:
* @window: a #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)
{
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;
XChangeProperty (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name ("_NET_WM_NAME"),
gdk_x11_get_xatom_by_name ("UTF8_STRING"), 8,
PropModeReplace, title,
strlen (title));
set_text_property (window, gdk_x11_get_xatom_by_name ("WM_NAME"), title);
if (!gdk_window_icon_name_set (window))
{
XChangeProperty (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name ("_NET_WM_ICON_NAME"),
gdk_x11_get_xatom_by_name ("UTF8_STRING"), 8,
PropModeReplace, title,
strlen (title));
set_text_property (window, gdk_x11_get_xatom_by_name ("WM_ICON_NAME"), title);
}
}
/**
* gdk_window_set_role:
* @window: a #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)
{
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (!GDK_WINDOW_DESTROYED (window))
{
if (role)
XChangeProperty (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name ("WM_WINDOW_ROLE"), XA_STRING,
8, PropModeReplace, role, strlen (role));
else
XDeleteProperty (GDK_WINDOW_XDISPLAY (window), GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name ("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)
{
gdk_pixmap_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);
if (private->bg_pixmap &&
private->bg_pixmap != GDK_PARENT_RELATIVE_BG &&
private->bg_pixmap != GDK_NO_BG)
gdk_pixmap_unref (private->bg_pixmap);
if (parent_relative)
{
xpixmap = ParentRelative;
private->bg_pixmap = GDK_PARENT_RELATIVE_BG;
}
else
{
if (pixmap)
{
gdk_pixmap_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)
window = _gdk_parent_root;
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_root_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 #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;
static Atom atom = 0;
gulong number_return, bytes_after_return;
guchar *data_return;
g_return_val_if_fail (window != NULL, 0);
g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
if (!GDK_WINDOW_DESTROYED (window))
{
if (!atom)
atom = gdk_x11_get_xatom_by_name ("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 #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 #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;
if (GDK_WINDOW_DESTROYED (window))
return;
xparent = GDK_WINDOW_XID (window);
do
{
xwindow = xparent;
if (!XQueryTree (GDK_WINDOW_XDISPLAY (window), xwindow,
&root, &xparent,
&children, &nchildren))
return;
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;
}
}
}
GdkWindow*
_gdk_windowing_window_get_pointer (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);
if (!window)
window = _gdk_parent_root;
_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 (child);
}
if (x)
*x = winx + xoffset;
if (y)
*y = winy + yoffset;
if (mask)
*mask = xmask;
return return_val;
}
GdkWindow*
_gdk_windowing_window_at_pointer (gint *win_x,
gint *win_y)
{
GdkWindow *window;
Window root;
Window xwindow;
Window xwindow_last = 0;
Display *xdisplay;
int rootx = -1, rooty = -1;
int winx, winy;
unsigned int xmask;
xwindow = GDK_ROOT_WINDOW ();
xdisplay = GDK_DISPLAY ();
gdk_x11_grab_server ();
while (xwindow)
{
xwindow_last = xwindow;
XQueryPointer (xdisplay, xwindow,
&root, &xwindow,
&rootx, &rooty,
&winx, &winy,
&xmask);
}
gdk_x11_ungrab_server ();
window = gdk_window_lookup (xwindow_last);
if (win_x)
*win_x = window ? winx : -1;
if (win_y)
*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;
int i;
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 = 0;
for (i = 0; i < _gdk_nenvent_masks; i++)
{
if (attrs.your_event_mask & _gdk_event_mask_table[i])
event_mask |= 1 << (i + 1);
}
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))
{
xevent_mask = StructureNotifyMask;
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);
}
}
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));
toplevel = gdk_window_get_toplevel (window);
if (GDK_WINDOW_DESTROYED (toplevel))
return;
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 (void)
{
enum { UNKNOWN, NO, YES };
static gint have_shape = UNKNOWN;
if (have_shape == UNKNOWN)
{
int ignore;
if (XQueryExtension (gdk_display, "SHAPE", &ignore, &ignore, &ignore))
have_shape = YES;
else
have_shape = NO;
}
return (have_shape == 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.
*
**/
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 ())
{
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.
*
**/
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 ())
{
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 #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;
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
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_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name ("_NET_WM_ICON"),
XA_CARDINAL, 32,
PropModeReplace,
(guchar*) data, size);
}
else
{
XDeleteProperty (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name ("_NET_WM_ICON"));
}
}
/**
* gdk_window_set_icon:
* @window: a #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 #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)
{
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
g_object_set_qdata (G_OBJECT (window), g_quark_from_static_string ("gdk-icon-name-set"),
GUINT_TO_POINTER (TRUE));
XChangeProperty (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name ("_NET_WM_ICON_NAME"),
gdk_x11_get_xatom_by_name ("UTF8_STRING"), 8,
PropModeReplace, name,
strlen (name));
set_text_property (window, gdk_x11_get_xatom_by_name ("WM_ICON_NAME"), name);
}
/**
* gdk_window_iconify:
* @window: a #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.
*
**/
void
gdk_window_iconify (GdkWindow *window)
{
Display *display;
GdkWindowObject *private;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
display = GDK_WINDOW_XDISPLAY (window);
private = (GdkWindowObject*) window;
if (GDK_WINDOW_IS_MAPPED (window))
{
XIconifyWindow (display, GDK_WINDOW_XWINDOW (window), DefaultScreen (display));
}
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 #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)
{
Display *display;
GdkWindowObject *private;
g_return_if_fail (window != NULL);
g_return_if_fail (GDK_IS_WINDOW (window));
if (GDK_WINDOW_DESTROYED (window))
return;
display = GDK_WINDOW_XDISPLAY (window);
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_display;
xev.xclient.message_type = gdk_x11_get_xatom_by_name ("_NET_WM_DESKTOP");
xev.xclient.format = 32;
xev.xclient.data.l[0] = 0xFFFFFFFF;
XSendEvent (gdk_display, _gdk_root_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;
/* 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, _gdk_root_window,
gdk_x11_get_xatom_by_name ("_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.display = gdk_display;
xev.xclient.message_type = gdk_x11_get_xatom_by_name ("_NET_WM_DESKTOP");
xev.xclient.format = 32;
xev.xclient.data.l[0] = *current_desktop;
XSendEvent (gdk_display, _gdk_root_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 #GdkWindow
*
* 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.
*
* If the window was already maximized, then this function does nothing.
*
**/
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 #GdkWindow
*
* 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.
*
* If the window wasn't maximized, then this function does nothing.
*
**/
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_set_group:
* @window: a #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)
{
static Atom hints_atom = None;
MotifWmHints *hints;
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
if (GDK_WINDOW_DESTROYED (window))
return NULL;
if (!hints_atom)
hints_atom = XInternAtom (GDK_WINDOW_XDISPLAY (window),
_XA_MOTIF_WM_HINTS, FALSE);
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)
return NULL;
return hints;
}
static void
gdk_window_set_mwm_hints (GdkWindow *window,
MotifWmHints *new_hints)
{
static Atom hints_atom = None;
MotifWmHints *hints;
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
if (GDK_WINDOW_DESTROYED (window))
return;
if (!hints_atom)
hints_atom = XInternAtom (GDK_WINDOW_XDISPLAY (window),
_XA_MOTIF_WM_HINTS, FALSE);
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 #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 #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;
hints = gdk_window_get_mwm_hints (window);
if (hints)
{
if (hints->flags & MWM_HINTS_DECORATIONS)
{
*decorations = hints->decorations;
result = TRUE;
}
XFree (hints);
}
return result;
}
/**
* gdk_window_set_functions:
* @window: a #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_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_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 (void)
{
enum { UNKNOWN, NO, YES };
static gint gravity_works = UNKNOWN;
if (gravity_works == 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 (gdk_display), "Sun Microsystems, Inc.")) &&
(VendorRelease (gdk_display) == 3400))
{
gravity_works = 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 (NULL, &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);
gravity_works = ((y == -20) ? YES : NO);
}
return (gravity_works == YES);
}
static void
gdk_window_set_static_bit_gravity (GdkWindow *window, gboolean on)
{
XSetWindowAttributes xattributes;
guint xattributes_mask = 0;
g_return_if_fail (window != NULL);
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 ())
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;
}
/* internal function created for and used by gdk_window_xid_at_coords */
Window
gdk_window_xid_at (Window base,
gint bx,
gint by,
gint x,
gint y,
GList *excludes,
gboolean excl_child)
{
Display *xdisplay;
Window *list = NULL;
Window child = 0, parent_win = 0, root_win = 0;
int i;
unsigned int ww, wh, wb, wd, num;
int wx, wy;
xdisplay = GDK_DISPLAY ();
if (!XGetGeometry (xdisplay, base, &root_win, &wx, &wy, &ww, &wh, &wb, &wd))
return 0;
wx += bx;
wy += by;
if (!((x >= wx) &&
(y >= wy) &&
(x < (int) (wx + ww)) &&
(y < (int) (wy + wh))))
return 0;
if (!XQueryTree (xdisplay, base, &root_win, &parent_win, &list, &num))
return base;
if (list)
{
for (i = num - 1; ; i--)
{
if ((!excl_child) || (!g_list_find (excludes, (gpointer *) list[i])))
{
if ((child = gdk_window_xid_at (list[i], wx, wy, x, y, excludes, excl_child)) != 0)
{
XFree (list);
return child;
}
}
if (!i)
break;
}
XFree (list);
}
return base;
}
/*
* The following fucntion by The Rasterman <raster@redhat.com>
* This function returns the X Window ID in which the x y location is in
* (x and y being relative to the root window), excluding any windows listed
* in the GList excludes (this is a list of X Window ID's - gpointer being
* the Window ID).
*
* This is primarily designed for internal gdk use - for DND for example
* when using a shaped icon window as the drag object - you exclude the
* X Window ID of the "icon" (perhaps more if excludes may be needed) and
* You can get back an X Window ID as to what X Window ID is infact under
* those X,Y co-ordinates.
*/
Window
gdk_window_xid_at_coords (gint x,
gint y,
GList *excludes,
gboolean excl_child)
{
GdkWindow *window;
Display *xdisplay;
Window *list = NULL;
Window root, child = 0, parent_win = 0, root_win = 0;
unsigned int num;
int i;
window = _gdk_parent_root;
xdisplay = GDK_WINDOW_XDISPLAY (window);
root = GDK_WINDOW_XID (window);
num = g_list_length (excludes);
gdk_x11_grab_server ();
if (!XQueryTree (xdisplay, root, &root_win, &parent_win, &list, &num))
{
gdk_x11_ungrab_server ();
return root;
}
if (list)
{
i = num - 1;
do
{
XWindowAttributes xwa;
XGetWindowAttributes (xdisplay, list [i], &xwa);
if (xwa.map_state != IsViewable)
continue;
if (excl_child && g_list_find (excludes, (gpointer *) list[i]))
continue;
if ((child = gdk_window_xid_at (list[i], 0, 0, x, y, excludes, excl_child)) == 0)
continue;
if (excludes)
{
if (!g_list_find (excludes, (gpointer *) child))
{
XFree (list);
gdk_x11_ungrab_server ();
return child;
}
}
else
{
XFree (list);
gdk_x11_ungrab_server ();
return child;
}
} while (--i > 0);
XFree (list);
}
gdk_x11_ungrab_server ();
return root;
}
static void
wmspec_moveresize (GdkWindow *window,
gint direction,
gint root_x,
gint root_y,
guint32 timestamp)
{
XEvent xev;
/* Release passive grab */
gdk_pointer_ungrab (timestamp);
xev.xclient.type = ClientMessage;
xev.xclient.serial = 0;
xev.xclient.send_event = True;
xev.xclient.display = gdk_display;
xev.xclient.window = GDK_WINDOW_XID (window);
xev.xclient.message_type = gdk_x11_get_xatom_by_name ("_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, _gdk_root_window, False,
SubstructureRedirectMask | SubstructureNotifyMask,
&xev);
}
/* 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);
}
/* This is global for use in gdkevents-x11.c */
GdkWindow *_gdk_moveresize_window;
static GdkWindow *moveresize_emulation_window = NULL;
static gboolean is_resize = FALSE;
static GdkWindowEdge resize_edge;
static gint moveresize_button;
static gint moveresize_x;
static gint moveresize_y;
static gint moveresize_orig_x;
static gint moveresize_orig_y;
static gint moveresize_orig_width;
static gint moveresize_orig_height;
static GdkWindowHints moveresize_geom_mask = 0;
static GdkGeometry moveresize_geometry;
static Time moveresize_process_time;
static XEvent *moveresize_pending_event;
static void
update_pos (gint new_root_x,
gint new_root_y)
{
gint dx, dy;
dx = new_root_x - moveresize_x;
dy = new_root_y - moveresize_y;
if (is_resize)
{
gint w, h;
w = moveresize_orig_width;
h = moveresize_orig_height;
switch (resize_edge)
{
case GDK_WINDOW_EDGE_SOUTH_EAST:
w += dx;
h += dy;
break;
}
w = MAX (w, 1);
h = MAX (h, 1);
if (moveresize_geom_mask)
{
gdk_window_constrain_size (&moveresize_geometry,
moveresize_geom_mask,
w, h,
&w, &h);
}
gdk_window_resize (_gdk_moveresize_window, w, h);
}
else
{
gint x, y;
x = moveresize_orig_x + dx;
y = moveresize_orig_y + dy;
gdk_window_move (_gdk_moveresize_window, x, y);
}
}
static void
finish_drag (void)
{
gdk_window_destroy (moveresize_emulation_window);
moveresize_emulation_window = NULL;
_gdk_moveresize_window = NULL;
if (moveresize_pending_event)
{
g_free (moveresize_pending_event);
moveresize_pending_event = NULL;
}
}
static int
lookahead_motion_predicate (Display *display,
XEvent *event,
XPointer arg)
{
gboolean *seen_release = (gboolean *)arg;
if (*seen_release)
return False;
switch (event->xany.type)
{
case ButtonRelease:
*seen_release = TRUE;
break;
case MotionNotify:
moveresize_process_time = event->xmotion.time;
break;
default:
break;
}
return False;
}
static gboolean
moveresize_lookahead (XEvent *event)
{
XEvent tmp_event;
gboolean seen_release = FALSE;
if (moveresize_process_time)
{
if (event->xmotion.time == moveresize_process_time)
{
moveresize_process_time = 0;
return TRUE;
}
else
return FALSE;
}
XCheckIfEvent (gdk_display, &tmp_event,
lookahead_motion_predicate, (XPointer)&seen_release);
return moveresize_process_time == 0;
}
void
_gdk_moveresize_handle_event (XEvent *event)
{
guint button_mask = 0;
GdkWindowObject *window_private = (GdkWindowObject *) _gdk_moveresize_window;
button_mask = GDK_BUTTON1_MASK << (moveresize_button - 1);
switch (event->xany.type)
{
case MotionNotify:
if (window_private->resize_count > 0)
{
if (moveresize_pending_event)
*moveresize_pending_event = *event;
else
moveresize_pending_event = g_memdup (event, sizeof (XEvent));
break;
}
if (!moveresize_lookahead (event))
break;
update_pos (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 ();
break;
case ButtonRelease:
update_pos (event->xbutton.x_root,
event->xbutton.y_root);
if (event->xbutton.button == moveresize_button)
finish_drag ();
break;
}
}
void
_gdk_moveresize_configure_done (void)
{
XEvent *tmp_event;
if (moveresize_pending_event)
{
tmp_event = moveresize_pending_event;
moveresize_pending_event = NULL;
_gdk_moveresize_handle_event (tmp_event);
g_free (tmp_event);
}
}
static void
create_moveresize_window (guint32 timestamp)
{
GdkWindowAttr attributes;
gint attributes_mask;
GdkGrabStatus status;
g_assert (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;
moveresize_emulation_window =
gdk_window_new (NULL, &attributes, attributes_mask);
gdk_window_show (moveresize_emulation_window);
status = gdk_pointer_grab (moveresize_emulation_window,
FALSE,
GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK,
FALSE,
NULL,
timestamp);
if (status != GDK_GRAB_SUCCESS)
{
/* If this fails, some other client has grabbed the window
* already.
*/
gdk_window_destroy (moveresize_emulation_window);
moveresize_emulation_window = NULL;
}
moveresize_process_time = 0;
}
static void
emulate_resize_drag (GdkWindow *window,
GdkWindowEdge edge,
gint button,
gint root_x,
gint root_y,
guint32 timestamp)
{
is_resize = TRUE;
moveresize_button = button;
resize_edge = edge;
moveresize_x = root_x;
moveresize_y = root_y;
_gdk_moveresize_window = GDK_WINDOW (g_object_ref (G_OBJECT (window)));
gdk_window_get_size (window, &moveresize_orig_width, &moveresize_orig_height);
moveresize_geom_mask = 0;
gdk_window_get_geometry_hints (window,
&moveresize_geometry,
&moveresize_geom_mask);
create_moveresize_window (timestamp);
}
static void
emulate_move_drag (GdkWindow *window,
gint button,
gint root_x,
gint root_y,
guint32 timestamp)
{
is_resize = FALSE;
moveresize_button = button;
moveresize_x = root_x;
moveresize_y = root_y;
_gdk_moveresize_window = GDK_WINDOW (g_object_ref (G_OBJECT (window)));
gdk_window_get_deskrelative_origin (_gdk_moveresize_window,
&moveresize_orig_x,
&moveresize_orig_y);
create_moveresize_window (timestamp);
}
/**
* gdk_window_begin_resize_drag:
* @window: a #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 (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));
g_return_if_fail (moveresize_emulation_window == NULL);
if (GDK_WINDOW_DESTROYED (window))
return;
if (gdk_net_wm_supports (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 #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));
g_return_if_fail (moveresize_emulation_window == NULL);
if (GDK_WINDOW_DESTROYED (window))
return;
if (gdk_net_wm_supports (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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