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 "core/fetch/ImageResource.h"
30#include "core/fetch/ResourcePtr.h"
31#include "core/rendering/style/StyleImage.h"
32
33namespace blink {
34
35class RenderObject;
36
37class RenderImageResource {
38    WTF_MAKE_NONCOPYABLE(RenderImageResource); WTF_MAKE_FAST_ALLOCATED;
39public:
40    virtual ~RenderImageResource();
41
42    static PassOwnPtr<RenderImageResource> create()
43    {
44        return adoptPtr(new RenderImageResource);
45    }
46
47    virtual void initialize(RenderObject*);
48    virtual void shutdown();
49
50    void setImageResource(ImageResource*);
51    ImageResource* cachedImage() const { return m_cachedImage.get(); }
52    virtual bool hasImage() const { return m_cachedImage; }
53
54    void resetAnimation();
55
56    virtual PassRefPtr<Image> image(int /* width */ = 0, int /* height */ = 0) const
57    {
58        return m_cachedImage ? m_cachedImage->imageForRenderer(m_renderer) : Image::nullImage();
59    }
60    virtual bool errorOccurred() const { return m_cachedImage && m_cachedImage->errorOccurred(); }
61
62    virtual void setContainerSizeForRenderer(const IntSize&);
63    virtual bool usesImageContainerSize() const { return m_cachedImage ? m_cachedImage->usesImageContainerSize() : false; }
64    virtual bool imageHasRelativeWidth() const { return m_cachedImage ? m_cachedImage->imageHasRelativeWidth() : false; }
65    virtual bool imageHasRelativeHeight() const { return m_cachedImage ? m_cachedImage->imageHasRelativeHeight() : false; }
66
67    virtual LayoutSize imageSize(float multiplier) const { return getImageSize(multiplier, ImageResource::NormalSize); }
68    virtual LayoutSize intrinsicSize(float multiplier) const { return getImageSize(multiplier, ImageResource::IntrinsicSize); }
69
70    virtual WrappedImagePtr imagePtr() const { return m_cachedImage.get(); }
71
72protected:
73    RenderImageResource();
74    RenderObject* m_renderer;
75    ResourcePtr<ImageResource> m_cachedImage;
76
77private:
78    LayoutSize getImageSize(float multiplier, ImageResource::SizeType) const;
79};
80
81} // namespace blink
82
83#endif // RenderImage_h
84