khtml/svg/graphics/SVGResourceMasker.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 SVGResourceMasker_h
  27 #define SVGResourceMasker_h
  28
  29 #if ENABLE(SVG)
  30
  31 #include "GraphicsContext.h"
  32 #include "SVGResource.h"
  33
  34 #include <memory>
  35
  36 #include <wtf/OwnPtr.h>
  37 #include <wtf/PassRefPtr.h>
  38
  39 namespace WebCore {
  40
  41     class FloatRect;
  42     class ImageBuffer;
  43     class SVGMaskElement;
  44
  45     class SVGResourceMasker : public SVGResource {
  46     public:
  47         static PassRefPtr<SVGResourceMasker> create(const SVGMaskElement* ownerElement) { return adoptRef(new SVGResourceMasker(ownerElement)); }
  48         virtual ~SVGResourceMasker();
  49
  50         virtual void invalidate();
  51
  52         virtual SVGResourceType resourceType() const { return MaskerResourceType; }
  53         /*virtual TextStream& externalRepresentation(TextStream&) const;*/
  54
  55         // To be implemented by the specific rendering devices
  56         void applyMask(/*GraphicsContext**/QPainter* painter, const FloatRect& boundingBox);
  57
  58     private:
  59         SVGResourceMasker(const SVGMaskElement*);
  60
  61         const SVGMaskElement* m_ownerElement;
  62
  63         OwnPtr<ImageBuffer> m_mask;
  64         FloatRect m_maskRect;
  65     };
  66
  67     SVGResourceMasker* getMaskerById(Document*, const AtomicString&);
  68
  69 } // namespace WebCore
  70
  71 #endif
  72
  73 #endif // SVGResourceMasker_h