1/*
2 * Copyright (C) 1999 Lars Knoll <knoll@kde.org>
3 * Copyright (C) 1999 Antti Koivisto <koivisto@kde.org>
4 * Copyright (C) 2000 Dirk Mueller <mueller@kde.org>
5 * Copyright (C) 2006 Allan Sandfeld Jensen <kde@carewolf.com>
6 * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
7 * Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009, 2010 Apple Inc. All rights reserved.
8 * Copyright (C) 2010 Google Inc. All rights reserved.
9 * Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>
10 *
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Library General Public
13 * License as published by the Free Software Foundation; either
14 * version 2 of the License, or (at your option) any later version.
15 *
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
19 * Library General Public License for more details.
20 *
21 * You should have received a copy of the GNU Library General Public License
22 * along with this library; see the file COPYING.LIB.  If not, write to
23 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24 * Boston, MA 02110-1301, USA.
25 *
26 */
27
28#include "config.h"
29#include "RenderImageResource.h"
30
31#include "CachedImage.h"
32#include "Image.h"
33#include "RenderImageResourceStyleImage.h"
34#include "RenderObject.h"
35
36namespace WebCore {
37
38RenderImageResource::RenderImageResource()
39    : m_renderer(0)
40{
41}
42
43RenderImageResource::~RenderImageResource()
44{
45}
46
47void RenderImageResource::initialize(RenderObject* renderer)
48{
49    ASSERT(!m_renderer);
50    ASSERT(renderer);
51    m_renderer = renderer;
52}
53
54void RenderImageResource::shutdown()
55{
56    ASSERT(m_renderer);
57
58    if (m_cachedImage)
59        m_cachedImage->removeClient(m_renderer);
60}
61
62void RenderImageResource::setCachedImage(CachedImage* newImage)
63{
64    ASSERT(m_renderer);
65
66    if (m_cachedImage == newImage)
67        return;
68
69    if (m_cachedImage)
70        m_cachedImage->removeClient(m_renderer);
71    m_cachedImage = newImage;
72    if (m_cachedImage) {
73        m_cachedImage->addClient(m_renderer);
74        if (m_cachedImage->errorOccurred())
75            m_renderer->imageChanged(m_cachedImage.get());
76    }
77}
78
79void RenderImageResource::resetAnimation()
80{
81    ASSERT(m_renderer);
82
83    if (!m_cachedImage)
84        return;
85
86    image()->resetAnimation();
87
88    if (!m_renderer->needsLayout())
89        m_renderer->repaint();
90}
91
92PassRefPtr<Image> RenderImageResource::image(int, int) const
93{
94    return m_cachedImage ? m_cachedImage->imageForRenderer(m_renderer) : nullImage();
95}
96
97bool RenderImageResource::errorOccurred() const
98{
99    return m_cachedImage && m_cachedImage->errorOccurred();
100}
101
102void RenderImageResource::setContainerSizeForRenderer(const IntSize& imageContainerSize)
103{
104    ASSERT(m_renderer);
105    if (m_cachedImage)
106        m_cachedImage->setContainerSizeForRenderer(m_renderer, imageContainerSize, m_renderer->style()->effectiveZoom());
107}
108
109Image* RenderImageResource::nullImage()
110{
111    return Image::nullImage();
112}
113
114bool RenderImageResource::usesImageContainerSize() const
115{
116    return m_cachedImage ? m_cachedImage->usesImageContainerSize() : false;
117}
118
119bool RenderImageResource::imageHasRelativeWidth() const
120{
121    return m_cachedImage ? m_cachedImage->imageHasRelativeWidth() : false;
122}
123
124bool RenderImageResource::imageHasRelativeHeight() const
125{
126    return m_cachedImage ? m_cachedImage->imageHasRelativeHeight() : false;
127}
128
129LayoutSize RenderImageResource::imageSize(float multiplier) const
130{
131    return m_cachedImage ? m_cachedImage->imageSizeForRenderer(m_renderer, multiplier) : LayoutSize();
132}
133
134} // namespace WebCore
135