1 /* 2 * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org> 3 * 2008 Eric Seidel <eric@webkit.org> 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef SVGPaintServerGradient_h 28 #define SVGPaintServerGradient_h 29 30 #if ENABLE(SVG) 31 32 #include "AffineTransform.h" 33 #include "Color.h" 34 #include "Gradient.h" 35 #include "GraphicsContext.h" 36 #include "SVGPaintServer.h" 37 38 #include <wtf/RefCounted.h> 39 #include <wtf/RefPtr.h> 40 41 namespace WebCore { 42 43 class ImageBuffer; 44 class SVGGradientElement; 45 46 typedef std::pair<float, Color> SVGGradientStop; 47 48 class SVGPaintServerGradient : public SVGPaintServer { 49 public: 50 virtual ~SVGPaintServerGradient(); 51 52 void setGradient(PassRefPtr<Gradient>); 53 Gradient* gradient() const; 54 55 // Gradient start and end points are percentages when used in boundingBox mode. 56 // For instance start point with value (0,0) is top-left and end point with 57 // value (100, 100) is bottom-right. BoundingBox mode is enabled by default. 58 bool boundingBoxMode() const; 59 void setBoundingBoxMode(bool mode = true); 60 61 AffineTransform gradientTransform() const; 62 void setGradientTransform(const AffineTransform&); 63 setGradientStops(const Vector<SVGGradientStop> & stops)64 void setGradientStops(const Vector<SVGGradientStop>& stops) { m_stops = stops; } gradientStops()65 const Vector<SVGGradientStop>& gradientStops() const { return m_stops; } 66 67 virtual TextStream& externalRepresentation(TextStream&) const; 68 69 virtual bool setup(GraphicsContext*&, const RenderObject*, const RenderStyle*, SVGPaintTargetType, bool isPaintingText) const; 70 virtual void teardown(GraphicsContext*&, const RenderObject*, SVGPaintTargetType, bool isPaintingText) const; 71 72 protected: 73 SVGPaintServerGradient(const SVGGradientElement* owner); 74 75 private: 76 Vector<SVGGradientStop> m_stops; 77 RefPtr<Gradient> m_gradient; 78 bool m_boundingBoxMode; 79 AffineTransform m_gradientTransform; 80 const SVGGradientElement* m_ownerElement; 81 82 #if PLATFORM(CG) 83 public: 84 mutable GraphicsContext* m_savedContext; 85 mutable OwnPtr<ImageBuffer> m_imageBuffer; 86 #endif 87 }; 88 makeGradientStop(float offset,const Color & color)89 inline SVGGradientStop makeGradientStop(float offset, const Color& color) 90 { 91 return std::make_pair(offset, color); 92 } 93 94 } // namespace WebCore 95 96 #endif 97 98 #endif // SVGPaintServerGradient_h 99