gegl r2731 - in trunk: . gegl/property-types

[ok svn gnome org]

Author: ok
Date: Tue Nov 11 10:18:23 2008
New Revision: 2731
URL: http://svn.gnome.org/viewvc/gegl?rev=2731&view=rev

Log:
* gegl/property-types/gegl-path.[ch]: (gegl_path_freeze),
(gegl_path_thaw), (gegl_path_emit_changed): added freeze and thaw
functions to the path, the full extent of the path fill be invalidated
upon the final thaw. Recursive hypothermia is permitted.


Modified:
   trunk/ChangeLog
   trunk/gegl/property-types/gegl-path.c
   trunk/gegl/property-types/gegl-path.h

Modified: trunk/gegl/property-types/gegl-path.c
==============================================================================
--- trunk/gegl/property-types/gegl-path.c	(original)
+++ trunk/gegl/property-types/gegl-path.c	Tue Nov 11 10:18:23 2008
@@ -529,6 +529,7 @@
 
   GeglRectangle dirtied;
   GeglRectangle cached_extent;
+  gint frozen;
 };
 
 static GeglPathList *ensure_tail (GeglPathPrivate *priv)
@@ -596,6 +597,22 @@
   return GPOINTER_TO_INT (a)-GPOINTER_TO_INT (b);
 }
 
+static void
+gegl_path_emit_changed (GeglPath            *self,
+                        const GeglRectangle *bounds);
+
+void gegl_path_freeze (GeglPath *path)
+{
+  GeglPathPrivate *priv = GEGL_PATH_GET_PRIVATE (path);
+  priv->frozen ++;
+}
+void gegl_path_thaw (GeglPath *path)
+{
+  GeglPathPrivate *priv = GEGL_PATH_GET_PRIVATE (path);
+  priv->frozen --;
+  gegl_path_emit_changed (path, NULL); /* expose a full changed */
+}
+
 static void ensure_flattened (GeglPath *vector)
 {
   GeglPathPrivate *priv = GEGL_PATH_GET_PRIVATE (vector);
@@ -679,6 +696,9 @@
   gdouble min_y;
   gdouble max_y;
 
+  if (priv->frozen)
+    return;
+
   gegl_path_get_bounds (self, &min_x, &max_x, &min_y, &max_y);
 
   rect.x = floor (min_x);

Modified: trunk/gegl/property-types/gegl-path.h
==============================================================================
--- trunk/gegl/property-types/gegl-path.h	(original)
+++ trunk/gegl/property-types/gegl-path.h	Tue Nov 11 10:18:23 2008
@@ -206,6 +206,8 @@
                        gdouble     hardness,
                        gdouble     opacity);
 
+void gegl_path_freeze (GeglPath *path);
+void gegl_path_thaw (GeglPath *path);
 
 
 G_END_DECLS