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      1 /*
      2  * Copyright (C) 2000 Lars Knoll (knoll (at) kde.org)
      3  *           (C) 2000 Antti Koivisto (koivisto (at) kde.org)
      4  *           (C) 2000 Dirk Mueller (mueller (at) kde.org)
      5  * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
      6  *
      7  * This library is free software; you can redistribute it and/or
      8  * modify it under the terms of the GNU Library General Public
      9  * License as published by the Free Software Foundation; either
     10  * version 2 of the License, or (at your option) any later version.
     11  *
     12  * This library is distributed in the hope that it will be useful,
     13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     15  * Library General Public License for more details.
     16  *
     17  * You should have received a copy of the GNU Library General Public License
     18  * along with this library; see the file COPYING.LIB.  If not, write to
     19  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     20  * Boston, MA 02110-1301, USA.
     21  *
     22  */
     23 
     24 #ifndef StyleGeneratedImage_h
     25 #define StyleGeneratedImage_h
     26 
     27 #include "StyleImage.h"
     28 
     29 namespace WebCore {
     30 
     31 class CSSValue;
     32 class CSSImageGeneratorValue;
     33 
     34 class StyleGeneratedImage : public StyleImage {
     35 public:
     36     static PassRefPtr<StyleGeneratedImage> create(CSSImageGeneratorValue* val, bool fixedSize)
     37     {
     38         return adoptRef(new StyleGeneratedImage(val, fixedSize));
     39     }
     40 
     41     virtual WrappedImagePtr data() const { return m_generator; }
     42 
     43     virtual bool isGeneratedImage() const { return true; }
     44 
     45     virtual PassRefPtr<CSSValue> cssValue() const;
     46 
     47     virtual IntSize imageSize(const RenderObject*, float multiplier) const;
     48     virtual bool imageHasRelativeWidth() const { return !m_fixedSize; }
     49     virtual bool imageHasRelativeHeight() const { return !m_fixedSize; }
     50     virtual bool usesImageContainerSize() const { return !m_fixedSize; }
     51     virtual void setImageContainerSize(const IntSize&);
     52     virtual void addClient(RenderObject*);
     53     virtual void removeClient(RenderObject*);
     54     virtual PassRefPtr<Image> image(RenderObject*, const IntSize&) const;
     55 
     56 private:
     57     StyleGeneratedImage(CSSImageGeneratorValue* val, bool fixedSize)
     58         : m_generator(val)
     59         , m_fixedSize(fixedSize)
     60     {
     61     }
     62 
     63     CSSImageGeneratorValue* m_generator; // The generator holds a reference to us.
     64     IntSize m_containerSize;
     65     bool m_fixedSize;
     66 };
     67 
     68 }
     69 #endif
     70