1/*
2 * Copyright (C) 1999 Lars Knoll <knoll@kde.org>
3 * Copyright (C) 1999 Antti Koivisto <koivisto@kde.org>
4 * Copyright (C) 2006 Allan Sandfeld Jensen <kde@carewolf.com>
5 * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
6 * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010 Apple Inc. All rights reserved.
7 * Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Library General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17 * Library General Public License for more details.
18 *
19 * You should have received a copy of the GNU Library General Public License
20 * along with this library; see the file COPYING.LIB.  If not, write to
21 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 * Boston, MA 02110-1301, USA.
23 *
24 */
25
26#ifndef RenderImageResource_h
27#define RenderImageResource_h
28
29#include "CachedImage.h"
30#include "CachedResourceHandle.h"
31#include "Image.h"
32#include "StyleImage.h"
33
34namespace WebCore {
35
36class RenderObject;
37
38class RenderImageResource {
39    WTF_MAKE_NONCOPYABLE(RenderImageResource); WTF_MAKE_FAST_ALLOCATED;
40public:
41    virtual ~RenderImageResource();
42
43    static PassOwnPtr<RenderImageResource> create()
44    {
45        return adoptPtr(new RenderImageResource);
46    }
47
48    virtual void initialize(RenderObject*);
49    virtual void shutdown();
50
51    void setCachedImage(CachedImage*);
52    CachedImage* cachedImage() const { return m_cachedImage.get(); }
53    virtual bool hasImage() const { return m_cachedImage; }
54
55    void resetAnimation();
56
57    virtual PassRefPtr<Image> image(int /* width */ = 0, int /* height */ = 0) const { return m_cachedImage ? m_cachedImage->image() : nullImage(); }
58    virtual bool errorOccurred() const { return m_cachedImage && m_cachedImage->errorOccurred(); }
59
60    virtual void setImageContainerSize(const IntSize& size) const;
61    virtual bool usesImageContainerSize() const { return m_cachedImage ? m_cachedImage->usesImageContainerSize() : false; }
62    virtual bool imageHasRelativeWidth() const { return m_cachedImage ? m_cachedImage->imageHasRelativeWidth() : false; }
63    virtual bool imageHasRelativeHeight() const { return m_cachedImage ? m_cachedImage->imageHasRelativeHeight() : false; }
64
65    virtual IntSize imageSize(float multiplier) const { return m_cachedImage ? m_cachedImage->imageSize(multiplier) : IntSize(); }
66
67    virtual WrappedImagePtr imagePtr() const { return m_cachedImage.get(); }
68
69protected:
70    RenderImageResource();
71    RenderObject* m_renderer;
72    CachedResourceHandle<CachedImage> m_cachedImage;
73
74private:
75    static Image* nullImage();
76};
77
78} // namespace WebCore
79
80#endif // RenderImage_h
81