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#include "config.h" 25#include "core/rendering/style/StyleGeneratedImage.h" 26 27#include "core/css/CSSImageGeneratorValue.h" 28#include "core/css/resolver/StyleResolver.h" 29#include "core/rendering/RenderObject.h" 30 31namespace blink { 32 33StyleGeneratedImage::StyleGeneratedImage(PassRefPtrWillBeRawPtr<CSSImageGeneratorValue> value) 34 : m_imageGeneratorValue(value) 35 , m_fixedSize(m_imageGeneratorValue->isFixedSize()) 36{ 37 m_isGeneratedImage = true; 38} 39 40PassRefPtrWillBeRawPtr<CSSValue> StyleGeneratedImage::cssValue() const 41{ 42 return m_imageGeneratorValue.get(); 43} 44 45LayoutSize StyleGeneratedImage::imageSize(const RenderObject* renderer, float multiplier) const 46{ 47 if (m_fixedSize) { 48 IntSize fixedSize = m_imageGeneratorValue->fixedSize(renderer); 49 if (multiplier == 1.0f) 50 return fixedSize; 51 52 LayoutUnit width = fixedSize.width() * multiplier; 53 LayoutUnit height = fixedSize.height() * multiplier; 54 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); 58 59 if (fixedSize.height() > 0) 60 height = max<LayoutUnit>(1, height); 61 62 return LayoutSize(width, height); 63 } 64 65 return m_containerSize; 66} 67 68void StyleGeneratedImage::computeIntrinsicDimensions(const RenderObject* renderer, Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio) 69{ 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; 75} 76 77void StyleGeneratedImage::addClient(RenderObject* renderer) 78{ 79 m_imageGeneratorValue->addClient(renderer, IntSize()); 80} 81 82void StyleGeneratedImage::removeClient(RenderObject* renderer) 83{ 84 m_imageGeneratorValue->removeClient(renderer); 85} 86 87PassRefPtr<Image> StyleGeneratedImage::image(RenderObject* renderer, const IntSize& size) const 88{ 89 return m_imageGeneratorValue->image(renderer, size); 90} 91 92bool StyleGeneratedImage::knownToBeOpaque(const RenderObject* renderer) const 93{ 94 return m_imageGeneratorValue->knownToBeOpaque(renderer); 95} 96 97} 98