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:
create(CSSImageGeneratorValue * val,bool fixedSize)36     static PassRefPtr<StyleGeneratedImage> create(CSSImageGeneratorValue* val, bool fixedSize)
37     {
38         return adoptRef(new StyleGeneratedImage(val, fixedSize));
39     }
40 
data()41     virtual WrappedImagePtr data() const { return m_generator; }
42 
isGeneratedImage()43     virtual bool isGeneratedImage() const { return true; }
44 
45     virtual PassRefPtr<CSSValue> cssValue() const;
46 
47     virtual IntSize imageSize(const RenderObject*, float multiplier) const;
imageHasRelativeWidth()48     virtual bool imageHasRelativeWidth() const { return !m_fixedSize; }
imageHasRelativeHeight()49     virtual bool imageHasRelativeHeight() const { return !m_fixedSize; }
usesImageContainerSize()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:
StyleGeneratedImage(CSSImageGeneratorValue * val,bool fixedSize)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