1/*
2 * Copyright (C) 2011 Research In Motion Limited. 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 SVGImageCache_h
21#define SVGImageCache_h
22
23#include "platform/geometry/FloatSize.h"
24#include "platform/geometry/IntSize.h"
25#include "platform/graphics/Image.h"
26#include "wtf/HashMap.h"
27#include "wtf/PassOwnPtr.h"
28#include "wtf/RefPtr.h"
29
30namespace blink {
31
32class ImageResourceClient;
33class SVGImage;
34class SVGImageForContainer;
35class RenderObject;
36
37class SVGImageCache {
38    WTF_MAKE_FAST_ALLOCATED;
39public:
40    ~SVGImageCache();
41
42    static PassOwnPtr<SVGImageCache> create(SVGImage* image)
43    {
44        return adoptPtr(new SVGImageCache(image));
45    }
46
47    void removeClientFromCache(const ImageResourceClient*);
48
49    void setContainerSizeForRenderer(const ImageResourceClient*, const IntSize&, float);
50    IntSize imageSizeForRenderer(const RenderObject*) const;
51
52    Image* imageForRenderer(const RenderObject*);
53
54private:
55    SVGImageCache(SVGImage*);
56
57    typedef HashMap<const ImageResourceClient*, RefPtr<SVGImageForContainer> > ImageForContainerMap;
58
59    SVGImage* m_svgImage;
60    ImageForContainerMap m_imageForContainerMap;
61};
62
63} // namespace blink
64
65#endif // SVGImageCache_h
66