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
27namespace WebCore {
28
29class AffineTransform;
30class FloatRect;
31class FloatSize;
32class GraphicsContext;
33class RenderObject;
34
35class SVGImageBufferTools {
36    WTF_MAKE_NONCOPYABLE(SVGImageBufferTools);
37public:
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
46private:
47    SVGImageBufferTools() { }
48    ~SVGImageBufferTools() { }
49};
50
51}
52
53#endif
54#endif
55