1 /* 2 * Copyright (C) 2006 Nikolas Zimmermann <zimmermann (at) 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 "RenderObject.h" 33 #include "SVGMaskElement.h" 34 #include "SVGResource.h" 35 36 #include <memory> 37 38 #include <wtf/OwnPtr.h> 39 #include <wtf/PassRefPtr.h> 40 41 namespace WebCore { 42 43 class FloatRect; 44 class ImageBuffer; 45 class SVGMaskElement; 46 47 class SVGResourceMasker : public SVGResource { 48 public: 49 static PassRefPtr<SVGResourceMasker> create(const SVGMaskElement* ownerElement) { return adoptRef(new SVGResourceMasker(ownerElement)); } 50 virtual ~SVGResourceMasker(); 51 52 virtual void invalidate(); 53 54 virtual SVGResourceType resourceType() const { return MaskerResourceType; } 55 virtual TextStream& externalRepresentation(TextStream&) const; 56 57 FloatRect maskerBoundingBox(const FloatRect&) const; 58 bool applyMask(GraphicsContext*, const RenderObject*); 59 60 private: 61 SVGResourceMasker(const SVGMaskElement*); 62 63 const SVGMaskElement* m_ownerElement; 64 65 OwnPtr<ImageBuffer> m_mask; 66 FloatRect m_maskRect; 67 bool m_emptyMask; 68 }; 69 70 SVGResourceMasker* getMaskerById(Document*, const AtomicString&, const RenderObject* object); 71 72 } // namespace WebCore 73 74 #endif 75 76 #endif // SVGResourceMasker_h 77
