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      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 SVGPaintServer_h
     27 #define SVGPaintServer_h
     28 
     29 #if ENABLE(SVG)
     30 
     31 #include "DashArray.h"
     32 #include "RenderObject.h"
     33 #include "SVGResource.h"
     34 
     35 #if PLATFORM(CG)
     36 #include <ApplicationServices/ApplicationServices.h>
     37 #endif
     38 
     39 namespace WebCore {
     40 
     41     enum SVGPaintServerType {
     42         // Painting mode
     43         SolidPaintServer = 0,
     44         PatternPaintServer = 1,
     45         LinearGradientPaintServer = 2,
     46         RadialGradientPaintServer = 3
     47     };
     48 
     49     enum SVGPaintTargetType {
     50         // Target mode
     51         ApplyToFillTargetType = 1,
     52         ApplyToStrokeTargetType = 2
     53     };
     54 
     55     class GraphicsContext;
     56     class RenderObject;
     57     class RenderStyle;
     58     class SVGPaintServerSolid;
     59 
     60     class SVGPaintServer : public SVGResource {
     61     public:
     62         virtual ~SVGPaintServer();
     63 
     64         virtual SVGResourceType resourceType() const { return PaintServerResourceType; }
     65 
     66         virtual SVGPaintServerType type() const = 0;
     67         virtual TextStream& externalRepresentation(TextStream&) const = 0;
     68 
     69         // To be implemented in platform specific code.
     70         virtual void draw(GraphicsContext*&, const RenderObject*, SVGPaintTargetType) const;
     71         virtual void teardown(GraphicsContext*&, const RenderObject*, SVGPaintTargetType, bool isPaintingText = false) const;
     72         virtual void renderPath(GraphicsContext*&, const RenderObject*, SVGPaintTargetType) const;
     73 
     74         virtual bool setup(GraphicsContext*&, const RenderObject*, const RenderStyle*, SVGPaintTargetType, bool isPaintingText = false) const = 0;
     75 
     76         bool setup(GraphicsContext*&, const RenderObject*, SVGPaintTargetType, bool isPaintingText = false) const;
     77 
     78         static SVGPaintServer* strokePaintServer(const RenderStyle*, const RenderObject*);
     79         static SVGPaintServer* fillPaintServer(const RenderStyle*, const RenderObject*);
     80         static SVGPaintServerSolid* sharedSolidPaintServer();
     81 
     82     protected:
     83         SVGPaintServer();
     84     };
     85 
     86     TextStream& operator<<(TextStream&, const SVGPaintServer&);
     87 
     88     SVGPaintServer* getPaintServerById(Document*, const AtomicString&, const RenderObject*);
     89 
     90     void applyStrokeStyleToContext(GraphicsContext*, const RenderStyle*, const RenderObject*);
     91     DashArray dashArrayFromRenderingStyle(const RenderStyle* style, RenderStyle* rootStyle);
     92 } // namespace WebCore
     93 
     94 #endif
     95 
     96 #endif // SVGPaintServer_h
     97