stacked clip paths. patch by Ted Janeczko for Bug 1067271

Fixed bugs:
  - https://launchpad.net/bugs/1067271

(bzr r11943)

1 files changed, 11 insertions, 16 deletions

diff --git a/src/display/drawing-item.cpp b/src/display/drawing-item.cpp
index 0fb1f0018..1e6e44d6f 100644
--- a/src/display/drawing-item.cpp
+++ b/src/display/drawing-item.cpp
@@ -667,29 +667,24 @@ DrawingItem::clip(Inkscape::DrawingContext &ct, Geom::IntRect const &area)
     if (!_visible) return;
     if (!area.intersects(_bbox)) return;
 
-    // The item used as the clipping path itself has a clipping path.
-    // Render this item's clipping path onto a temporary surface, then composite it
-    // with the item using the IN operator
-    if (_clip) {
-        ct.pushAlphaGroup();
-        {   Inkscape::DrawingContext::Save save(ct);
-            ct.setSource(0,0,0,1);
-            _clip->clip(ct, area);
-        }
-        ct.pushAlphaGroup();
-    }
-
+    ct.setSource(0,0,0,1);
+    ct.pushGroup();
     // rasterize the clipping path
     _clipItem(ct, area);
-    
     if (_clip) {
+        // The item used as the clipping path itself has a clipping path.
+        // Render this item's clipping path onto a temporary surface, then composite it
+        // with the item using the IN operator
+        ct.pushGroup();
+        _clip->clip(ct, area);
         ct.popGroupToSource();
         ct.setOperator(CAIRO_OPERATOR_IN);
         ct.paint();
-        ct.popGroupToSource();
-        ct.setOperator(CAIRO_OPERATOR_SOURCE);
-        ct.paint();
     }
+    ct.popGroupToSource();
+    ct.setOperator(CAIRO_OPERATOR_OVER);
+    ct.paint();
+    ct.setSource(0,0,0,0);
 }
 
 /**