1 files changed, 39 insertions, 0 deletions
diff --git a/WebCore/svg/graphics/SVGResourceClipper.cpp b/WebCore/svg/graphics/SVGResourceClipper.cpp
index f03f5c2..51bda0d 100644
--- a/WebCore/svg/graphics/SVGResourceClipper.cpp
+++ b/WebCore/svg/graphics/SVGResourceClipper.cpp
@@ -28,8 +28,14 @@
 #if ENABLE(SVG)
 #include "SVGResourceClipper.h"
 
+#include "TransformationMatrix.h"
+#include "GraphicsContext.h"
 #include "SVGRenderTreeAsText.h"
 
+#if PLATFORM(CG)
+#include <ApplicationServices/ApplicationServices.h>
+#endif
+
 namespace WebCore {
 
 SVGResourceClipper::SVGResourceClipper()
@@ -46,6 +52,39 @@ void SVGResourceClipper::resetClipData()
     m_clipData.clear();
 }
 
+void SVGResourceClipper::applyClip(GraphicsContext* context, const FloatRect& boundingBox) const
+{
+    if (m_clipData.clipData().isEmpty())
+        return;
+
+    bool heterogenousClipRules = false;
+    WindRule clipRule = m_clipData.clipData()[0].windRule;
+
+    context->beginPath();
+
+    for (unsigned x = 0; x < m_clipData.clipData().size(); x++) {
+        ClipData clipData = m_clipData.clipData()[x];
+        if (clipData.windRule != clipRule)
+            heterogenousClipRules = true;
+        
+        Path clipPath = clipData.path;
+
+        if (clipData.bboxUnits) {
+            TransformationMatrix transform;
+            transform.translate(boundingBox.x(), boundingBox.y());
+            transform.scale(boundingBox.width(), boundingBox.height());
+            clipPath.transform(transform);
+        }
+        context->addPath(clipPath);
+    }
+
+    // FIXME!
+    // We don't currently allow for heterogenous clip rules.
+    // we would have to detect such, draw to a mask, and then clip
+    // to that mask
+    context->clipPath(clipRule);
+}
+
 void SVGResourceClipper::addClipData(const Path& path, WindRule rule, bool bboxUnits)
 {
     m_clipData.addPath(path, rule, bboxUnits);