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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* (C) 2006 Allan Sandfeld Jensen (kde@carewolf.com)
* (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
* Copyright (C) 2004, 2005, 2006, 2007, 2009 Apple Inc. All rights reserved.
*
* 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.
*
*/
#ifndef RenderImage_h
#define RenderImage_h
#include "RenderReplaced.h"
namespace WebCore {
class HTMLMapElement;
class RenderImage : public RenderReplaced {
public:
RenderImage(Node*);
virtual ~RenderImage();
bool setImageSizeForAltText(CachedImage* newImage = 0);
void updateAltText();
void setCachedImage(CachedImage*);
CachedImage* cachedImage() const { return m_cachedImage.get(); }
HTMLMapElement* imageMap();
void resetAnimation();
virtual bool hasImage() const { return m_cachedImage; }
void highQualityRepaintTimerFired(Timer<RenderImage>*);
protected:
virtual Image* image(int /* width */ = 0, int /* height */ = 0) { return m_cachedImage ? m_cachedImage->image() : nullImage(); }
virtual bool errorOccurred() const { return m_cachedImage && m_cachedImage->errorOccurred(); }
virtual void imageChanged(WrappedImagePtr, const IntRect* = 0);
private:
virtual const char* renderName() const { return "RenderImage"; }
virtual bool isImage() const { return true; }
virtual bool isRenderImage() const { return true; }
virtual void paintReplaced(PaintInfo&, int tx, int ty);
virtual int minimumReplacedHeight() const;
virtual void notifyFinished(CachedResource*);
virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction);
virtual int calcReplacedWidth(bool includeMaxWidth = true) const;
virtual int calcReplacedHeight() const;
virtual void calcPrefWidths();
virtual bool usesImageContainerSize() const { return m_cachedImage ? m_cachedImage->usesImageContainerSize() : false; }
virtual void setImageContainerSize(const IntSize& size) const { if (m_cachedImage) m_cachedImage->setImageContainerSize(size); }
virtual bool imageHasRelativeWidth() const { return m_cachedImage ? m_cachedImage->imageHasRelativeWidth() : false; }
virtual bool imageHasRelativeHeight() const { return m_cachedImage ? m_cachedImage->imageHasRelativeHeight() : false; }
virtual IntSize imageSize(float multiplier) const { return m_cachedImage ? m_cachedImage->imageSize(multiplier) : IntSize(); }
virtual WrappedImagePtr imagePtr() const { return m_cachedImage.get(); }
virtual void intrinsicSizeChanged() { imageChanged(imagePtr()); }
int calcAspectRatioWidth() const;
int calcAspectRatioHeight() const;
bool isWidthSpecified() const;
bool isHeightSpecified() const;
protected:
// The image we are rendering.
CachedResourceHandle<CachedImage> m_cachedImage;
private:
// Text to display as long as the image isn't available.
String m_altText;
static Image* nullImage();
friend class RenderImageScaleObserver;
};
inline RenderImage* toRenderImage(RenderObject* object)
{
ASSERT(!object || object->isRenderImage());
return static_cast<RenderImage*>(object);
}
inline const RenderImage* toRenderImage(const RenderObject* object)
{
ASSERT(!object || object->isRenderImage());
return static_cast<const RenderImage*>(object);
}
// This will catch anyone doing an unnecessary cast.
void toRenderImage(const RenderImage*);
} // namespace WebCore
#endif // RenderImage_h
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