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.
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.
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.
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.
27 #include "core/css/CSSValue.h"
28 #include "platform/geometry/IntSize.h"
29 #include "platform/geometry/LayoutSize.h"
30 #include "platform/graphics/Image.h"
31 #include "wtf/PassRefPtr.h"
32 #include "wtf/RefCounted.h"
33 #include "wtf/RefPtr.h"
41 typedef void* WrappedImagePtr;
43 class StyleImage : public RefCounted<StyleImage> {
45 virtual ~StyleImage() { }
47 bool operator==(const StyleImage& other) const
49 return data() == other.data();
52 virtual PassRefPtrWillBeRawPtr<CSSValue> cssValue() const = 0;
54 virtual bool canRender(const RenderObject&, float /*multiplier*/) const { return true; }
55 virtual bool isLoaded() const { return true; }
56 virtual bool errorOccurred() const { return false; }
57 virtual LayoutSize imageSize(const RenderObject*, float multiplier) const = 0;
58 virtual void computeIntrinsicDimensions(const RenderObject*, Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio) = 0;
59 virtual bool imageHasRelativeWidth() const = 0;
60 virtual bool imageHasRelativeHeight() const = 0;
61 virtual bool usesImageContainerSize() const = 0;
62 virtual void setContainerSizeForRenderer(const RenderObject*, const IntSize&, float) = 0;
63 virtual void addClient(RenderObject*) = 0;
64 virtual void removeClient(RenderObject*) = 0;
65 virtual PassRefPtr<Image> image(RenderObject*, const IntSize&) const = 0;
66 virtual WrappedImagePtr data() const = 0;
67 virtual float imageScaleFactor() const { return 1; }
68 virtual bool knownToBeOpaque(const RenderObject*) const = 0;
69 virtual ImageResource* cachedImage() const { return 0; }
71 ALWAYS_INLINE bool isImageResource() const { return m_isImageResource; }
72 ALWAYS_INLINE bool isPendingImage() const { return m_isPendingImage; }
73 ALWAYS_INLINE bool isGeneratedImage() const { return m_isGeneratedImage; }
74 ALWAYS_INLINE bool isImageResourceSet() const { return m_isImageResourceSet; }
78 : m_isImageResource(false)
79 , m_isPendingImage(false)
80 , m_isGeneratedImage(false)
81 , m_isImageResourceSet(false)
84 bool m_isImageResource:1;
85 bool m_isPendingImage:1;
86 bool m_isGeneratedImage:1;
87 bool m_isImageResourceSet:1;
90 #define DEFINE_STYLE_IMAGE_TYPE_CASTS(thisType, function) \
91 DEFINE_TYPE_CASTS(thisType, StyleImage, styleImage, styleImage->function, styleImage.function); \
92 inline thisType* to##thisType(const RefPtr<StyleImage>& styleImage) { return to##thisType(styleImage.get()); } \
93 typedef int NeedsSemiColonAfterDefineStyleImageTypeCasts