Home | History | Annotate | Download | only in rendering 
      1 /*
      2  * Copyright (C) 1999 Lars Knoll <knoll (at) kde.org>
      3  * Copyright (C) 1999 Antti Koivisto <koivisto (at) kde.org>
      4  * Copyright (C) 2000 Dirk Mueller <mueller (at) kde.org>
      5  * Copyright (C) 2006 Allan Sandfeld Jensen <kde (at) carewolf.com>
      6  * Copyright (C) 2006 Samuel Weinig <sam.weinig (at) 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 (at) 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 
     34 namespace WebCore {
     35 
     36 RenderImageResource::RenderImageResource()
     37     : m_renderer(0)
     38     , m_cachedImage(0)
     39 {
     40 }
     41 
     42 RenderImageResource::~RenderImageResource()
     43 {
     44 }
     45 
     46 void RenderImageResource::initialize(RenderObject* renderer)
     47 {
     48     ASSERT(!m_renderer);
     49     ASSERT(renderer);
     50     m_renderer = renderer;
     51 }
     52 
     53 void RenderImageResource::shutdown()
     54 {
     55     ASSERT(m_renderer);
     56 
     57     if (m_cachedImage)
     58         m_cachedImage->removeClient(m_renderer);
     59 }
     60 
     61 void 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 
     80 void RenderImageResource::resetAnimation()
     81 {
     82     ASSERT(m_renderer);
     83 
     84     if (!m_cachedImage)
     85         return;
     86 
     87     image()->resetAnimation();
     88 
     89     if (!m_renderer->needsLayout())
     90         m_renderer->paintInvalidationForWholeRenderer();
     91 }
     92 
     93 void RenderImageResource::setContainerSizeForRenderer(const IntSize& imageContainerSize)
     94 {
     95     ASSERT(m_renderer);
     96     if (m_cachedImage)
     97         m_cachedImage->setContainerSizeForRenderer(m_renderer, imageContainerSize, m_renderer->style()->effectiveZoom());
     98 }
     99 
    100 LayoutSize RenderImageResource::getImageSize(float multiplier, ImageResource::SizeType type) const
    101 {
    102     if (!m_cachedImage)
    103         return LayoutSize();
    104     LayoutSize size = m_cachedImage->imageSizeForRenderer(m_renderer, multiplier, type);
    105     if (m_renderer && m_renderer->isRenderImage())
    106         size.scale(toRenderImage(m_renderer)->imageDevicePixelRatio());
    107     return size;
    108 }
    109 
    110 } // namespace WebCore
    111