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1 /*
2  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Library General Public
6  * License as published by the Free Software Foundation; either
7  * version 2 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  * Library General Public License for more details.
13  *
14  * You should have received a copy of the GNU Library General Public License
15  * along with this library; see the file COPYING.LIB.  If not, write to
16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17  * Boston, MA 02110-1301, USA.
18  */
19 
20 #ifndef SVGImageBufferTools_h
21 #define SVGImageBufferTools_h
22 
23 #if ENABLE(SVG)
24 #include "ImageBuffer.h"
25 #include <wtf/Noncopyable.h>
26 
27 namespace WebCore {
28 
29 class AffineTransform;
30 class FloatRect;
31 class FloatSize;
32 class GraphicsContext;
33 class RenderObject;
34 
35 class SVGImageBufferTools {
36     WTF_MAKE_NONCOPYABLE(SVGImageBufferTools);
37 public:
38     static bool createImageBuffer(const FloatRect& absoluteTargetRect, const FloatRect& clampedAbsoluteTargetRect, OwnPtr<ImageBuffer>&, ColorSpace);
39     static void renderSubtreeToImageBuffer(ImageBuffer*, RenderObject*, const AffineTransform&);
40     static void clipToImageBuffer(GraphicsContext*, const AffineTransform& absoluteTransform, const FloatRect& clampedAbsoluteTargetRect, OwnPtr<ImageBuffer>&);
41 
42     static void calculateTransformationToOutermostSVGCoordinateSystem(const RenderObject*, AffineTransform& absoluteTransform);
43     static FloatRect clampedAbsoluteTargetRectForRenderer(const RenderObject*, const FloatRect& absoluteTargetRect);
44     static IntSize roundedImageBufferSize(const FloatSize&);
45 
46 private:
SVGImageBufferTools()47     SVGImageBufferTools() { }
~SVGImageBufferTools()48     ~SVGImageBufferTools() { }
49 };
50 
51 }
52 
53 #endif
54 #endif
55