| /* |
| * Copyright (C) 2000 Lars Knoll (knoll@kde.org) |
| * (C) 2000 Antti Koivisto (koivisto@kde.org) |
| * (C) 2000 Dirk Mueller (mueller@kde.org) |
| * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #include "config.h" |
| #include "core/rendering/style/StyleGeneratedImage.h" |
| |
| #include "core/css/CSSImageGeneratorValue.h" |
| #include "core/css/resolver/StyleResolver.h" |
| #include "core/rendering/RenderObject.h" |
| |
| namespace blink { |
| |
| StyleGeneratedImage::StyleGeneratedImage(PassRefPtrWillBeRawPtr<CSSImageGeneratorValue> value) |
| : m_imageGeneratorValue(value) |
| , m_fixedSize(m_imageGeneratorValue->isFixedSize()) |
| { |
| m_isGeneratedImage = true; |
| } |
| |
| PassRefPtrWillBeRawPtr<CSSValue> StyleGeneratedImage::cssValue() const |
| { |
| return m_imageGeneratorValue.get(); |
| } |
| |
| LayoutSize StyleGeneratedImage::imageSize(const RenderObject* renderer, float multiplier) const |
| { |
| if (m_fixedSize) { |
| IntSize fixedSize = m_imageGeneratorValue->fixedSize(renderer); |
| if (multiplier == 1.0f) |
| return fixedSize; |
| |
| LayoutUnit width = fixedSize.width() * multiplier; |
| LayoutUnit height = fixedSize.height() * multiplier; |
| |
| // Don't let images that have a width/height >= 1 shrink below 1 when zoomed. |
| if (fixedSize.width() > 0) |
| width = max<LayoutUnit>(1, width); |
| |
| if (fixedSize.height() > 0) |
| height = max<LayoutUnit>(1, height); |
| |
| return LayoutSize(width, height); |
| } |
| |
| return m_containerSize; |
| } |
| |
| void StyleGeneratedImage::computeIntrinsicDimensions(const RenderObject* renderer, Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio) |
| { |
| // At a zoom level of 1 the image is guaranteed to have an integer size. |
| IntSize size = flooredIntSize(imageSize(renderer, 1)); |
| intrinsicWidth = Length(size.width(), Fixed); |
| intrinsicHeight = Length(size.height(), Fixed); |
| intrinsicRatio = size; |
| } |
| |
| void StyleGeneratedImage::addClient(RenderObject* renderer) |
| { |
| m_imageGeneratorValue->addClient(renderer, IntSize()); |
| } |
| |
| void StyleGeneratedImage::removeClient(RenderObject* renderer) |
| { |
| m_imageGeneratorValue->removeClient(renderer); |
| } |
| |
| PassRefPtr<Image> StyleGeneratedImage::image(RenderObject* renderer, const IntSize& size) const |
| { |
| return m_imageGeneratorValue->image(renderer, size); |
| } |
| |
| bool StyleGeneratedImage::knownToBeOpaque(const RenderObject* renderer) const |
| { |
| return m_imageGeneratorValue->knownToBeOpaque(renderer); |
| } |
| |
| } |