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 "core/rendering/RenderImageResource.h"
30
31#include "core/rendering/RenderImage.h"
32#include "core/rendering/RenderObject.h"
33
34namespace blink {
35
36RenderImageResource::RenderImageResource()
37    : m_renderer(0)
38    , m_cachedImage(0)
39{
40}
41
42RenderImageResource::~RenderImageResource()
43{
44}
45
46void RenderImageResource::initialize(RenderObject* renderer)
47{
48    ASSERT(!m_renderer);
49    ASSERT(renderer);
50    m_renderer = renderer;
51}
52
53void RenderImageResource::shutdown()
54{
55    ASSERT(m_renderer);
56
57    if (m_cachedImage)
58        m_cachedImage->removeClient(m_renderer);
59}
60
61void RenderImageResource::setImageResource(ImageResource* newImage)
62{
63    ASSERT(m_renderer);
64
65    if (m_cachedImage == newImage)
66        return;
67
68    if (m_cachedImage)
69        m_cachedImage->removeClient(m_renderer);
70    m_cachedImage = newImage;
71    if (m_cachedImage) {
72        m_cachedImage->addClient(m_renderer);
73        if (m_cachedImage->errorOccurred())
74            m_renderer->imageChanged(m_cachedImage.get());
75    } else {
76        m_renderer->imageChanged(m_cachedImage.get());
77    }
78}
79
80void RenderImageResource::resetAnimation()
81{
82    ASSERT(m_renderer);
83
84    if (!m_cachedImage)
85        return;
86
87    image()->resetAnimation();
88
89    m_renderer->setShouldDoFullPaintInvalidation(true);
90}
91
92void RenderImageResource::setContainerSizeForRenderer(const IntSize& imageContainerSize)
93{
94    ASSERT(m_renderer);
95    if (m_cachedImage)
96        m_cachedImage->setContainerSizeForRenderer(m_renderer, imageContainerSize, m_renderer->style()->effectiveZoom());
97}
98
99LayoutSize RenderImageResource::getImageSize(float multiplier, ImageResource::SizeType type) const
100{
101    if (!m_cachedImage)
102        return LayoutSize();
103    LayoutSize size = m_cachedImage->imageSizeForRenderer(m_renderer, multiplier, type);
104    if (m_renderer && m_renderer->isRenderImage())
105        size.scale(toRenderImage(m_renderer)->imageDevicePixelRatio());
106    return size;
107}
108
109} // namespace blink
110