text: /*
   * Copyright (C) 1999 Lars Knoll <knoll@kde.org>
   * Copyright (C) 1999 Antti Koivisto <koivisto@kde.org>
   * Copyright (C) 2000 Dirk Mueller <mueller@kde.org>
   * Copyright (C) 2006 Allan Sandfeld Jensen <kde@carewolf.com>
   * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
   * Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009, 2010 Apple Inc. All rights reserved.
   * Copyright (C) 2010 Google Inc. All rights reserved.
   * Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Library General Public
   * License as published by the Free Software Foundation; either
   * version 2 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Library General Public License for more details.
   *
   * You should have received a copy of the GNU Library General Public License
   * along with this library; see the file COPYING.LIB.  If not, write to
   * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   * Boston, MA 02110-1301, USA.
   *
   */
  
  #include "config.h"
  #include "core/rendering/RenderImageResource.h"
  
  #include "core/rendering/RenderImage.h"
  #include "core/rendering/RenderObject.h"
  
  namespace blink {
  
  RenderImageResource::RenderImageResource()
      : m_renderer(0)
      , m_cachedImage(0)
  {
  }
  
  RenderImageResource::~RenderImageResource()
  {
  }
  
  void RenderImageResource::initialize(RenderObject* renderer)
  {
      ASSERT(!m_renderer);
      ASSERT(renderer);
      m_renderer = renderer;
  }
  
  void RenderImageResource::shutdown()
  {
      ASSERT(m_renderer);
  
      if (m_cachedImage)
          m_cachedImage->removeClient(m_renderer);
  }
  
  void RenderImageResource::setImageResource(ImageResource* newImage)
  {
      ASSERT(m_renderer);
  
      if (m_cachedImage == newImage)
          return;
  
      if (m_cachedImage)
          m_cachedImage->removeClient(m_renderer);
      m_cachedImage = newImage;
      if (m_cachedImage) {
          m_cachedImage->addClient(m_renderer);
          if (m_cachedImage->errorOccurred())
              m_renderer->imageChanged(m_cachedImage.get());
      } else {
          m_renderer->imageChanged(m_cachedImage.get());
      }
  }
  
  void RenderImageResource::resetAnimation()
  {
      ASSERT(m_renderer);
  
      if (!m_cachedImage)
          return;
  
      image()->resetAnimation();
  
      m_renderer->setShouldDoFullPaintInvalidation(true);
  }
  
  void RenderImageResource::setContainerSizeForRenderer(const IntSize& imageContainerSize)
  {
      ASSERT(m_renderer);
      if (m_cachedImage)
          m_cachedImage->setContainerSizeForRenderer(m_renderer, imageContainerSize);
  }
  
  LayoutSize RenderImageResource::getImageSize(ImageResource::SizeType type) const
  {
      if (!m_cachedImage)
          return LayoutSize();
      LayoutSize size = m_cachedImage->imageSizeForRenderer(m_renderer, type);
      if (m_renderer && m_renderer->isRenderImage())
          size.scale(toRenderImage(m_renderer)->imageDevicePixelRatio());
      return size;
  }
  
  } // namespace blink
  