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