WebCore/StyleGeneratedImage.h

   1 /*
   2  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
   3  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
   4  *           (C) 2000 Dirk Mueller (mueller@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();
  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 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