[gtk+/transparent-windows] gdk: Remove unused _gdk_window_calculate_full_clip_region

[Alexander Larsson <alexl src gnome org>]

commit 68843a3e93913c12d00b47380614f67e7e9763b4
Author: Alexander Larsson <alexl redhat com>
Date:   Mon Dec 5 10:59:07 2011 +0100

    gdk: Remove unused _gdk_window_calculate_full_clip_region

 gdk/gdkinternals.h |    5 --
 gdk/gdkwindow.c    |  108 ----------------------------------------------------
 2 files changed, 0 insertions(+), 113 deletions(-)
---
diff --git a/gdk/gdkinternals.h b/gdk/gdkinternals.h
index 8567fd4..3042bcb 100644
--- a/gdk/gdkinternals.h
+++ b/gdk/gdkinternals.h
@@ -400,11 +400,6 @@ void _gdk_display_set_window_under_pointer (GdkDisplay *display,
 
 void _gdk_synthesize_crossing_events_for_geometry_change (GdkWindow *changed_window);
 
-cairo_region_t *_gdk_window_calculate_full_clip_region    (GdkWindow     *window,
-                                                      GdkWindow     *base_window,
-                                                      gboolean       do_children,
-                                                      gint          *base_x_offset,
-                                                      gint          *base_y_offset);
 gboolean    _gdk_window_has_impl (GdkWindow *window);
 GdkWindow * _gdk_window_get_impl_window (GdkWindow *window);
 
diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index 4c669b5..a3a6266 100644
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -7631,114 +7631,6 @@ gdk_window_is_shaped (GdkWindow *window)
   return window->shaped;
 }
 
-static void
-window_get_size_rectangle (GdkWindow    *window,
-			   GdkRectangle *rect)
-{
-  rect->x = rect->y = 0;
-  rect->width = window->width;
-  rect->height = window->height;
-}
-
-/* Calculates the real clipping region for a window, in window coordinates,
- * taking into account other windows, gc clip region and gc clip mask.
- */
-cairo_region_t *
-_gdk_window_calculate_full_clip_region (GdkWindow *window,
-					GdkWindow *base_window,
-					gboolean   do_children,
-					gint      *base_x_offset,
-					gint      *base_y_offset)
-{
-  GdkRectangle visible_rect;
-  cairo_region_t *real_clip_region;
-  gint x_offset, y_offset;
-  GdkWindow *parentwin, *lastwin;
-
-  if (base_x_offset)
-    *base_x_offset = 0;
-  if (base_y_offset)
-    *base_y_offset = 0;
-
-  if (!window->viewable || window->input_only)
-    return cairo_region_create ();
-
-  window_get_size_rectangle (window, &visible_rect);
-
-  /* real_clip_region is in window coordinates */
-  real_clip_region = cairo_region_create_rectangle (&visible_rect);
-
-  x_offset = y_offset = 0;
-
-  lastwin = window;
-  if (do_children)
-    parentwin = lastwin;
-  else
-    parentwin = lastwin->parent;
-
-  /* Remove the areas of all overlapping windows above parentwin in the hiearachy */
-  for (; parentwin != NULL &&
-	 (parentwin == window || lastwin != base_window);
-       lastwin = parentwin, parentwin = lastwin->parent)
-    {
-      GList *cur;
-      GdkRectangle real_clip_rect;
-
-      if (parentwin != window)
-	{
-	  x_offset += lastwin->x;
-	  y_offset += lastwin->y;
-	}
-
-      /* children is ordered in reverse stack order */
-      for (cur = parentwin->children;
-	   cur && cur->data != lastwin;
-	   cur = cur->next)
-	{
-	  GdkWindow *child = cur->data;
-
-	  if (!GDK_WINDOW_IS_MAPPED (child) || child->input_only)
-	    continue;
-
-	  /* Ignore offscreen children, as they don't draw in their parent and
-	   * don't take part in the clipping */
-	  if (gdk_window_is_offscreen (child))
-	    continue;
-
-	  window_get_size_rectangle (child, &visible_rect);
-
-	  /* Convert rect to "window" coords */
-	  visible_rect.x += child->x - x_offset;
-	  visible_rect.y += child->y - y_offset;
-
-	  /* This shortcut is really necessary for performance when there are a lot of windows */
-	  cairo_region_get_extents (real_clip_region, &real_clip_rect);
-	  if (visible_rect.x >= real_clip_rect.x + real_clip_rect.width ||
-	      visible_rect.x + visible_rect.width <= real_clip_rect.x ||
-	      visible_rect.y >= real_clip_rect.y + real_clip_rect.height ||
-	      visible_rect.y + visible_rect.height <= real_clip_rect.y)
-	    continue;
-
-	  cairo_region_subtract_rectangle (real_clip_region, &visible_rect);
-	}
-
-      /* Clip to the parent */
-      window_get_size_rectangle ((GdkWindow *)parentwin, &visible_rect);
-      /* Convert rect to "window" coords */
-      visible_rect.x += - x_offset;
-      visible_rect.y += - y_offset;
-
-      cairo_region_intersect_rectangle (real_clip_region, &visible_rect);
-    }
-
-  if (base_x_offset)
-    *base_x_offset = x_offset;
-  if (base_y_offset)
-    *base_y_offset = y_offset;
-
-  return real_clip_region;
-}
-
 void
 _gdk_window_add_damage (GdkWindow *toplevel,
 			cairo_region_t *damaged_region)