khtml/svg/graphics/SVGResourceClipper.h

   1 /*
   2  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #ifndef SVGResourceClipper_h
  27 #define SVGResourceClipper_h
  28
  29 #if ENABLE(SVG)
  30
  31 #include "SVGResource.h"
  32 #include "Path.h"
  33
  34 // khtml
  35 #include "wtf/PassRefPtr.h"
  36
  37 namespace WebCore {
  38
  39     struct ClipData {
  40         Path path;
  41         WindRule windRule;
  42         bool bboxUnits : 1;
  43     };
  44
  45     class ClipDataList {
  46     public:
  47         void addPath(const Path& pathData, WindRule windRule, bool bboxUnits)
  48         {
  49             ClipData clipData;
  50
  51             clipData.path = pathData;
  52             clipData.windRule = windRule;
  53             clipData.bboxUnits = bboxUnits;
  54
  55             m_clipData.append(clipData);
  56         }
  57
  58         void clear() { m_clipData.clear(); }
  59         const Vector<ClipData>& clipData() const { return m_clipData; }
  60         bool isEmpty() const { return m_clipData.isEmpty(); }
  61     private:
  62         Vector<ClipData> m_clipData;
  63     };
  64
  65     /*class GraphicsContext;*/
  66
  67     class SVGResourceClipper : public SVGResource {
  68     public:
  69         static PassRefPtr<SVGResourceClipper> create() { return adoptRef(new SVGResourceClipper); }
  70         virtual ~SVGResourceClipper();
  71
  72         void resetClipData();
  73         void addClipData(const Path&, WindRule, bool bboxUnits);
  74
  75         const ClipDataList& clipData() const;
  76
  77         virtual SVGResourceType resourceType() const { return ClipperResourceType; }
  78         /*virtual TextStream& externalRepresentation(TextStream&) const;*/
  79
  80         // To be implemented by the specific rendering devices
  81         void applyClip(/*GraphicsContext**/QPainter* painter, const FloatRect& boundingBox) const;
  82     private:
  83         SVGResourceClipper();
  84         ClipDataList m_clipData;
  85     };
  86
  87     /*TextStream& operator<<(TextStream&, WindRule);
  88     TextStream& operator<<(TextStream&, const ClipData&);*/
  89
  90     SVGResourceClipper* getClipperById(Document*, const AtomicString&);
  91
  92 } // namespace WebCore
  93
  94 #endif
  95
  96 #endif // SVGResourceClipper_h