gdkwindow.c

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  gdk_window_ref (window);
  gdk_xid_table_insert (&private->xwindow, window);
  
  return window;
}

/* Call this function when you want a window and all its children to
 * disappear.  When xdestroy is true, a request to destroy the XWindow
 * is sent out.  When it is false, it is assumed that the XWindow has
 * been or will be destroyed by destroying some ancestor of this
 * window.
 */
static void
gdk_window_internal_destroy (GdkWindow *window,
			     gboolean   xdestroy,
			     gboolean   our_destroy)
{
  GdkWindowPrivate *private;
  GdkWindowPrivate *temp_private;
  GdkWindow *temp_window;
  GList *children;
  GList *tmp;
  
  g_return_if_fail (window != NULL);
  
  private = (GdkWindowPrivate*) window;
  
  switch (private->window_type)
    {
    case GDK_WINDOW_TOPLEVEL:
    case GDK_WINDOW_CHILD:
    case GDK_WINDOW_DIALOG:
    case GDK_WINDOW_TEMP:
    case GDK_WINDOW_FOREIGN:
      if (!private->destroyed)
	{
	  if (private->parent)
	    {
	      GdkWindowPrivate *parent_private = (GdkWindowPrivate *)private->parent;
	      if (parent_private->children)
		parent_private->children = g_list_remove (parent_private->children, window);
	    }
	  
	  if (private->window_type != GDK_WINDOW_FOREIGN)
	    {
	      children = tmp = private->children;
	      private->children = NULL;
	      
	      while (tmp)
		{
		  temp_window = tmp->data;
		  tmp = tmp->next;
		  
		  temp_private = (GdkWindowPrivate*) temp_window;
		  if (temp_private)
		    gdk_window_internal_destroy (temp_window, FALSE,
						 our_destroy);
		}
	      
	      g_list_free (children);
	    }
	  
	  if (private->extension_events != 0)
	    gdk_input_window_destroy (window);
	  
	  if (private->filters)
	    {
	      tmp = private->filters;
	      
	      while (tmp)
		{
		  g_free (tmp->data);
		  tmp = tmp->next;
		}
	      
	      g_list_free (private->filters);
	      private->filters = NULL;
	    }
	  
	  if (private->window_type == GDK_WINDOW_FOREIGN)
	    {
	      if (our_destroy && (private->parent != NULL))
		{
		  /* It's somebody elses 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 = private->xwindow;
		  xevent.message_type = gdk_wm_protocols;
		  xevent.format = 32;
		  xevent.data.l[0] = gdk_wm_delete_window;
		  xevent.data.l[1] = CurrentTime;

		  XSendEvent (private->xdisplay, private->xwindow,
			      False, 0, (XEvent *)&xevent);
		  gdk_flush ();
		  gdk_error_trap_pop ();
		}
	    }
	  else if (xdestroy)
	    XDestroyWindow (private->xdisplay, private->xwindow);
	  
	  if (private->colormap)
	    gdk_colormap_unref (private->colormap);
	  
	  private->mapped = FALSE;
	  private->destroyed = TRUE;
	}
      break;
      
    case GDK_WINDOW_ROOT:
      g_error ("attempted to destroy root window");
      break;
      
    case GDK_WINDOW_PIXMAP:
      g_error ("called gdk_window_destroy on a pixmap (use gdk_pixmap_unref)");
      break;
    }
}

/* Like internal_destroy, but also destroys the reference created by
   gdk_window_new. */

void
gdk_window_destroy (GdkWindow *window)
{
  gdk_window_internal_destroy (window, TRUE, TRUE);
  gdk_window_unref (window);
}

/* This function is called when the XWindow is really gone.  */

void
gdk_window_destroy_notify (GdkWindow *window)
{
  GdkWindowPrivate *private;
  
  g_return_if_fail (window != NULL);
  
  private = (GdkWindowPrivate*) window;
  
  if (!private->destroyed)
    {
      if (private->window_type != GDK_WINDOW_FOREIGN)
	g_warning ("GdkWindow %#lx unexpectedly destroyed", private->xwindow);

      gdk_window_internal_destroy (window, FALSE, FALSE);
    }
  
  gdk_xid_table_remove (private->xwindow);
  gdk_window_unref (window);
}

GdkWindow*
gdk_window_ref (GdkWindow *window)
{
  GdkWindowPrivate *private = (GdkWindowPrivate *)window;
  g_return_val_if_fail (window != NULL, NULL);
  
  private->ref_count += 1;
  return window;
}

void
gdk_window_unref (GdkWindow *window)
{
  GdkWindowPrivate *private = (GdkWindowPrivate *)window;
  g_return_if_fail (window != NULL);
  g_return_if_fail (private->ref_count > 0);
  
  private->ref_count -= 1;
  if (private->ref_count == 0)
    {
      if (!private->destroyed)
	{
	  if (private->window_type == GDK_WINDOW_FOREIGN)
	    gdk_xid_table_remove (private->xwindow);
	  else
	    g_warning ("losing last reference to undestroyed window\n");
	}
      g_dataset_destroy (window);
      g_free (window);
    }
}

void
gdk_window_show (GdkWindow *window)
{
  GdkWindowPrivate *private;
  
  g_return_if_fail (window != NULL);
  
  private = (GdkWindowPrivate*) window;
  if (!private->destroyed)
    {
      private->mapped = TRUE;
      XRaiseWindow (private->xdisplay, private->xwindow);
      XMapWindow (private->xdisplay, private->xwindow);
    }
}

void
gdk_window_hide (GdkWindow *window)
{
  GdkWindowPrivate *private;
  
  g_return_if_fail (window != NULL);
  
  private = (GdkWindowPrivate*) window;
  if (!private->destroyed)
    {
      private->mapped = FALSE;
      XUnmapWindow (private->xdisplay, private->xwindow);
    }
}

void
gdk_window_withdraw (GdkWindow *window)
{
  GdkWindowPrivate *private;
  
  g_return_if_fail (window != NULL);
  
  private = (GdkWindowPrivate*) window;
  if (!private->destroyed)
    XWithdrawWindow (private->xdisplay, private->xwindow, 0);
}

void
gdk_window_move (GdkWindow *window,
		 gint       x,
		 gint       y)
{
  GdkWindowPrivate *private;
  
  g_return_if_fail (window != NULL);
  
  private = (GdkWindowPrivate*) window;
  if (!private->destroyed)
    {
      XMoveWindow (private->xdisplay, private->xwindow, x, y);
      
      if (private->window_type == GDK_WINDOW_CHILD)
	{
	  private->x = x;
	  private->y = y;
	}
    }
}

void
gdk_window_resize (GdkWindow *window,
		   gint       width,
		   gint       height)
{
  GdkWindowPrivate *private;
  
  g_return_if_fail (window != NULL);
  
  if (width < 1)
    width = 1;
  if (height < 1)
    height = 1;
  
  private = (GdkWindowPrivate*) window;
  
  if (!private->destroyed &&
      ((private->resize_count > 0) ||
       (private->width != (guint16) width) ||
       (private->height != (guint16) height)))
    {
      XResizeWindow (private->xdisplay, private->xwindow, width, height);
      private->resize_count += 1;
      
      if (private->window_type == GDK_WINDOW_CHILD)
	{
	  private->width = width;
	  private->height = height;
	}
    }
}

void
gdk_window_move_resize (GdkWindow *window,
			gint       x,
			gint       y,
			gint       width,
			gint       height)
{
  GdkWindowPrivate *private;
  
  g_return_if_fail (window != NULL);
  
  if (width < 1)
    width = 1;
  if (height < 1)
    height = 1;
  
  private = (GdkWindowPrivate*) window;
  if (!private->destroyed)
    {
      XMoveResizeWindow (private->xdisplay, private->xwindow, x, y, width, height);
      
      if (private->guffaw_gravity)
	{
	  GList *tmp_list = private->children;
	  while (tmp_list)
	    {
	      GdkWindowPrivate *child_private = tmp_list->data;
	      
	      child_private->x -= x - private->x;
	      child_private->y -= y - private->y;
	      
	      tmp_list = tmp_list->next;
	    }
	}
      
      if (private->window_type == GDK_WINDOW_CHILD)
	{
	  private->x = x;
	  private->y = y;
	  private->width = width;
	  private->height = height;
	}
    }
}

void
gdk_window_reparent (GdkWindow *window,
		     GdkWindow *new_parent,
		     gint       x,
		     gint       y)
{
  GdkWindowPrivate *window_private;
  GdkWindowPrivate *parent_private;
  GdkWindowPrivate *old_parent_private;
  
  g_return_if_fail (window != NULL);
  
  if (!new_parent)
    new_parent = (GdkWindow*) &gdk_root_parent;
  
  window_private = (GdkWindowPrivate*) window;
  old_parent_private = (GdkWindowPrivate*)window_private->parent;
  parent_private = (GdkWindowPrivate*) new_parent;
  
  if (!window_private->destroyed && !parent_private->destroyed)
    XReparentWindow (window_private->xdisplay,
		     window_private->xwindow,
		     parent_private->xwindow,
		     x, y);
  
  window_private->parent = new_parent;
  
  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);
}

void
gdk_window_clear (GdkWindow *window)
{
  GdkWindowPrivate *private;
  
  g_return_if_fail (window != NULL);
  
  private = (GdkWindowPrivate*) window;
  
  if (!private->destroyed)
    XClearWindow (private->xdisplay, private->xwindow);
}

void
gdk_window_clear_area (GdkWindow *window,
		       gint       x,
		       gint       y,
		       gint       width,
		       gint       height)
{
  GdkWindowPrivate *private;
  
  g_return_if_fail (window != NULL);
  
  private = (GdkWindowPrivate*) window;
  
  if (!private->destroyed)
    XClearArea (private->xdisplay, private->xwindow,
		x, y, width, height, False);
}

void
gdk_window_clear_area_e (GdkWindow *window,
		         gint       x,
		         gint       y,
		         gint       width,
		         gint       height)
{
  GdkWindowPrivate *private;
  
  g_return_if_fail (window != NULL);
  
  private = (GdkWindowPrivate*) window;
  
  if (!private->destroyed)
    XClearArea (private->xdisplay, private->xwindow,
		x, y, width, height, True);
}

void
gdk_window_copy_area (GdkWindow    *window,
		      GdkGC        *gc,
		      gint          x,
		      gint          y,
		      GdkWindow    *source_window,
		      gint          source_x,
		      gint          source_y,
		      gint          width,
		      gint          height)
{
  GdkWindowPrivate *src_private;
  GdkWindowPrivate *dest_private;
  GdkGCPrivate *gc_private;
  
  g_return_if_fail (window != NULL);
  g_return_if_fail (gc != NULL);
  
  if (source_window == NULL)
    source_window = window;
  
  src_private = (GdkWindowPrivate*) source_window;
  dest_private = (GdkWindowPrivate*) window;
  gc_private = (GdkGCPrivate*) gc;
  
  if (!src_private->destroyed && !dest_private->destroyed)
    {
      XCopyArea (dest_private->xdisplay, src_private->xwindow, dest_private->xwindow,
		 gc_private->xgc,
		 source_x, source_y,
		 width, height,
		 x, y);
    }
}

void
gdk_window_raise (GdkWindow *window)
{
  GdkWindowPrivate *private;
  
  g_return_if_fail (window != NULL);
  
  private = (GdkWindowPrivate*) window;
  
  if (!private->destroyed)
    XRaiseWindow (private->xdisplay, private->xwindow);
}

void
gdk_window_lower (GdkWindow *window)
{
  GdkWindowPrivate *private;
  
  g_return_if_fail (window != NULL);
  
  private = (GdkWindowPrivate*) window;
  
  if (!private->destroyed)
    XLowerWindow (private->xdisplay, private->xwindow);
}

void
gdk_window_set_user_data (GdkWindow *window,
			  gpointer   user_data)
{
  g_return_if_fail (window != NULL);
  
  window->user_data = user_data;
}

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)
{
  GdkWindowPrivate *private;
  XSizeHints size_hints;
  
  g_return_if_fail (window != NULL);
  
  private = (GdkWindowPrivate*) window;
  if (private->destroyed)
    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 of
   *        flags == 0? It would save space on the server
   */
  XSetWMNormalHints (private->xdisplay, private->xwindow, &size_hints);
}

void 
gdk_window_set_geometry_hints (GdkWindow      *window,
			       GdkGeometry    *geometry,
			       GdkWindowHints  geom_mask)
{
  GdkWindowPrivate *private;
  XSizeHints size_hints;
  
  g_return_if_fail (window != NULL);
  
  private = (GdkWindowPrivate*) window;
  if (private->destroyed)