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SVGPaintServer.h

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00001 /*
00002  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
00003  *
00004  * Redistribution and use in source and binary forms, with or without
00005  * modification, are permitted provided that the following conditions
00006  * are met:
00007  * 1. Redistributions of source code must retain the above copyright
00008  *    notice, this list of conditions and the following disclaimer.
00009  * 2. Redistributions in binary form must reproduce the above copyright
00010  *    notice, this list of conditions and the following disclaimer in the
00011  *    documentation and/or other materials provided with the distribution.
00012  *
00013  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
00014  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00015  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
00016  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
00017  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00018  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
00019  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00020  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
00021  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00022  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00023  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
00024  */
00025 
00026 #ifndef SVGPaintServer_h
00027 #define SVGPaintServer_h
00028 
00029 #if ENABLE(SVG)
00030 
00031 #include "SVGResource.h"
00032 
00033 #include "RenderObject.h"
00034 #include "RenderStyle.h"
00035 
00036 #if PLATFORM(CG)
00037 #include <ApplicationServices/ApplicationServices.h>
00038 #endif
00039 
00040 #if PLATFORM(QT)
00041 #include <qglobal.h>
00042 QT_BEGIN_NAMESPACE
00043 class QPen;
00044 QT_END_NAMESPACE
00045 #endif
00046 
00047 #if PLATFORM(CG)
00048     typedef Vector<CGFloat> DashArray;
00049 #else
00050     typedef Vector<float> DashArray;
00051 #endif
00052 
00053 namespace WebCore {
00054 
00055     enum SVGPaintServerType {
00056         // Painting mode
00057         SolidPaintServer = 0,
00058         PatternPaintServer = 1,
00059         LinearGradientPaintServer = 2,
00060         RadialGradientPaintServer = 3
00061     };
00062 
00063     enum SVGPaintTargetType {
00064         // Target mode
00065         ApplyToFillTargetType = 1,
00066         ApplyToStrokeTargetType = 2
00067     };
00068 
00069     /*class GraphicsContext;
00070     class RenderObject;
00071     class RenderStyle;*/
00072     class SVGPaintServerSolid;
00073 
00074     class SVGPaintServer : public SVGResource {
00075     public:
00076         virtual ~SVGPaintServer();
00077 
00078         virtual SVGResourceType resourceType() const { return PaintServerResourceType; }
00079 
00080         virtual SVGPaintServerType type() const = 0;
00081         /* FIXME khtml virtual TextStream& externalRepresentation(TextStream&) const = 0;*/
00082 
00083         // To be implemented in platform specific code.
00084         virtual void draw(QPainter* painter, QPainterPath* painterPath, const RenderObject*, SVGPaintTargetType) const;
00085         virtual void teardown(QPainter* painter, QPainterPath* painterPath, const RenderObject*, SVGPaintTargetType, bool isPaintingText = false) const;
00086         virtual void renderPath(QPainter* painter, QPainterPath* painterPath, const RenderObject*, SVGPaintTargetType) const;
00087 
00088         virtual bool setup(QPainter* painter, QPainterPath* painterPath, const RenderObject*, SVGPaintTargetType, bool isPaintingText = false) const = 0;
00089 
00090         static SVGPaintServer* strokePaintServer(const RenderStyle*, const RenderObject*);
00091         static SVGPaintServer* fillPaintServer(const RenderStyle*, const RenderObject*);
00092         static SVGPaintServerSolid* sharedSolidPaintServer();
00093 
00094     protected:
00095 #if PLATFORM(CG)
00096         void strokePath(CGContextRef, const RenderObject*) const;
00097         void clipToStrokePath(CGContextRef, const RenderObject*) const;
00098         void fillPath(CGContextRef, const RenderObject*) const;
00099         void clipToFillPath(CGContextRef, const RenderObject*) const;
00100 #endif
00101 
00102 #if PLATFORM(QT)
00103         void setPenProperties(const RenderObject*, const RenderStyle*, QPen&) const;
00104 #endif
00105     protected:
00106         SVGPaintServer();        
00107     };
00108 
00109     /*khtml TextStream& operator<<(TextStream&, const SVGPaintServer&);*/
00110 
00111     SVGPaintServer* getPaintServerById(Document*, const AtomicString&);
00112 
00113     DashArray dashArrayFromRenderingStyle(const RenderStyle* style);
00114 } // namespace WebCore
00115 
00116 #endif
00117 
00118 #endif // SVGPaintServer_h

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