external/webkit r30707

1 files changed, 93 insertions, 0 deletions

diff --git a/WebCore/svg/graphics/SVGResourceClipper.h b/WebCore/svg/graphics/SVGResourceClipper.h
new file mode 100644
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--- /dev/null
+++ b/WebCore/svg/graphics/SVGResourceClipper.h
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#ifndef SVGResourceClipper_h
+#define SVGResourceClipper_h
+
+#if ENABLE(SVG)
+
+#include "SVGResource.h"
+#include "Path.h"
+
+namespace WebCore {
+
+    struct ClipData {
+        Path path;
+        WindRule windRule;
+        bool bboxUnits : 1;
+    };
+
+    class ClipDataList { 
+    public:
+        void addPath(const Path& pathData, WindRule windRule, bool bboxUnits)
+        {
+            ClipData clipData;
+            
+            clipData.path = pathData;
+            clipData.windRule = windRule;
+            clipData.bboxUnits = bboxUnits;
+            
+            m_clipData.append(clipData);
+        }
+        
+        void clear() { m_clipData.clear(); }
+        const Vector<ClipData>& clipData() const { return m_clipData; }
+        bool isEmpty() const { return m_clipData.isEmpty(); }
+    private:
+        Vector<ClipData> m_clipData;
+    };  
+
+    class GraphicsContext;
+
+    class SVGResourceClipper : public SVGResource {
+    public:
+        static PassRefPtr<SVGResourceClipper> create() { return adoptRef(new SVGResourceClipper); }
+        virtual ~SVGResourceClipper();
+      
+        void resetClipData();
+        void addClipData(const Path&, WindRule, bool bboxUnits);
+
+        const ClipDataList& clipData() const;
+        
+        virtual SVGResourceType resourceType() const { return ClipperResourceType; }
+        virtual TextStream& externalRepresentation(TextStream&) const;
+
+        // To be implemented by the specific rendering devices
+        void applyClip(GraphicsContext*, const FloatRect& boundingBox) const;
+    private:
+        SVGResourceClipper();
+        ClipDataList m_clipData;
+    };
+
+    TextStream& operator<<(TextStream&, WindRule);
+    TextStream& operator<<(TextStream&, const ClipData&);
+
+    SVGResourceClipper* getClipperById(Document*, const AtomicString&);
+
+} // namespace WebCore
+
+#endif
+
+#endif // SVGResourceClipper_h