/* * Copyright (C) 2008 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef CSSImageGeneratorValue_h #define CSSImageGeneratorValue_h #include "CSSValue.h" #include "IntSizeHash.h" #include <wtf/HashCountedSet.h> #include <wtf/RefPtr.h> namespace WebCore { class CachedResourceLoader; class Image; class RenderObject; struct SizeAndCount { SizeAndCount(IntSize newSize = IntSize(), int newCount = 0) : size(newSize) , count(newCount) { } IntSize size; int count; }; typedef HashMap<const RenderObject*, SizeAndCount> RenderObjectSizeCountMap; class CSSImageGeneratorValue : public CSSValue { public: ~CSSImageGeneratorValue(); void addClient(RenderObject*, const IntSize&); void removeClient(RenderObject*); PassRefPtr<Image> image(RenderObject*, const IntSize&); bool isFixedSize() const; IntSize fixedSize(const RenderObject*); bool isPending() const; void loadSubimages(CachedResourceLoader*); protected: CSSImageGeneratorValue(ClassType); Image* getImage(RenderObject*, const IntSize&); void putImage(const IntSize&, PassRefPtr<Image>); const RenderObjectSizeCountMap& clients() const { return m_clients; } HashCountedSet<IntSize> m_sizes; // A count of how many times a given image size is in use. RenderObjectSizeCountMap m_clients; // A map from RenderObjects (with entry count) to image sizes. HashMap<IntSize, RefPtr<Image> > m_images; // A cache of Image objects by image size. }; } // namespace WebCore #endif // CSSImageGeneratorValue_h