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.
25 #include "core/rendering/style/StyleGeneratedImage.h"
27 #include "core/css/CSSImageGeneratorValue.h"
28 #include "core/css/resolver/StyleResolver.h"
29 #include "core/rendering/RenderObject.h"
33 StyleGeneratedImage::StyleGeneratedImage(PassRefPtrWillBeRawPtr<CSSImageGeneratorValue> value)
34 : m_imageGeneratorValue(value)
35 , m_fixedSize(m_imageGeneratorValue->isFixedSize())
37 m_isGeneratedImage = true;
40 PassRefPtr<CSSValue> StyleGeneratedImage::cssValue() const
42 return m_imageGeneratorValue.get();
45 LayoutSize StyleGeneratedImage::imageSize(const RenderObject* renderer, float multiplier) const
48 IntSize fixedSize = m_imageGeneratorValue->fixedSize(renderer);
49 if (multiplier == 1.0f)
52 LayoutUnit width = fixedSize.width() * multiplier;
53 LayoutUnit height = fixedSize.height() * multiplier;
55 // Don't let images that have a width/height >= 1 shrink below 1 when zoomed.
56 if (fixedSize.width() > 0)
57 width = max<LayoutUnit>(1, width);
59 if (fixedSize.height() > 0)
60 height = max<LayoutUnit>(1, height);
62 return LayoutSize(width, height);
65 return m_containerSize;
68 void StyleGeneratedImage::computeIntrinsicDimensions(const RenderObject* renderer, Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio)
70 // At a zoom level of 1 the image is guaranteed to have an integer size.
71 IntSize size = flooredIntSize(imageSize(renderer, 1));
72 intrinsicWidth = Length(size.width(), Fixed);
73 intrinsicHeight = Length(size.height(), Fixed);
74 intrinsicRatio = size;
77 void StyleGeneratedImage::addClient(RenderObject* renderer)
79 m_imageGeneratorValue->addClient(renderer, IntSize());
82 void StyleGeneratedImage::removeClient(RenderObject* renderer)
84 m_imageGeneratorValue->removeClient(renderer);
87 PassRefPtr<Image> StyleGeneratedImage::image(RenderObject* renderer, const IntSize& size) const
89 return m_imageGeneratorValue->image(renderer, size);
92 bool StyleGeneratedImage::knownToBeOpaque(const RenderObject* renderer) const
94 return m_imageGeneratorValue->knownToBeOpaque(renderer);