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97 lines
3.6 KiB
C++
97 lines
3.6 KiB
C++
/*
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* Copyright (C) 2000 Lars Knoll (knoll@kde.org)
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* (C) 2000 Antti Koivisto (koivisto@kde.org)
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* (C) 2000 Dirk Mueller (mueller@kde.org)
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* Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef StyleImage_h
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#define StyleImage_h
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#include "core/css/CSSValue.h"
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#include "platform/geometry/IntSize.h"
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#include "platform/geometry/LayoutSize.h"
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#include "platform/graphics/Image.h"
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#include "wtf/PassRefPtr.h"
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#include "wtf/RefCounted.h"
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#include "wtf/RefPtr.h"
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namespace blink {
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class ImageResource;
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class CSSValue;
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class RenderObject;
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typedef void* WrappedImagePtr;
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class StyleImage : public RefCounted<StyleImage> {
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public:
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virtual ~StyleImage() { }
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bool operator==(const StyleImage& other) const
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{
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return data() == other.data();
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}
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virtual PassRefPtrWillBeRawPtr<CSSValue> cssValue() const = 0;
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virtual bool canRender(const RenderObject&, float /*multiplier*/) const { return true; }
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virtual bool isLoaded() const { return true; }
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virtual bool errorOccurred() const { return false; }
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virtual LayoutSize imageSize(const RenderObject*, float multiplier) const = 0;
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virtual void computeIntrinsicDimensions(const RenderObject*, Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio) = 0;
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virtual bool imageHasRelativeWidth() const = 0;
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virtual bool imageHasRelativeHeight() const = 0;
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virtual bool usesImageContainerSize() const = 0;
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virtual void setContainerSizeForRenderer(const RenderObject*, const IntSize&, float) = 0;
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virtual void addClient(RenderObject*) = 0;
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virtual void removeClient(RenderObject*) = 0;
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virtual PassRefPtr<Image> image(RenderObject*, const IntSize&) const = 0;
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virtual WrappedImagePtr data() const = 0;
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virtual float imageScaleFactor() const { return 1; }
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virtual bool knownToBeOpaque(const RenderObject*) const = 0;
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virtual ImageResource* cachedImage() const { return 0; }
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ALWAYS_INLINE bool isImageResource() const { return m_isImageResource; }
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ALWAYS_INLINE bool isPendingImage() const { return m_isPendingImage; }
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ALWAYS_INLINE bool isGeneratedImage() const { return m_isGeneratedImage; }
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ALWAYS_INLINE bool isImageResourceSet() const { return m_isImageResourceSet; }
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protected:
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StyleImage()
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: m_isImageResource(false)
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, m_isPendingImage(false)
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, m_isGeneratedImage(false)
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, m_isImageResourceSet(false)
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{
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}
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bool m_isImageResource:1;
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bool m_isPendingImage:1;
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bool m_isGeneratedImage:1;
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bool m_isImageResourceSet:1;
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};
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#define DEFINE_STYLE_IMAGE_TYPE_CASTS(thisType, function) \
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DEFINE_TYPE_CASTS(thisType, StyleImage, styleImage, styleImage->function, styleImage.function); \
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inline thisType* to##thisType(const RefPtr<StyleImage>& styleImage) { return to##thisType(styleImage.get()); } \
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typedef int NeedsSemiColonAfterDefineStyleImageTypeCasts
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}
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#endif
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