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/*
* 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 "StyleGeneratedImage.h"
#include "CSSImageGeneratorValue.h"
#include "CSSStyleSelector.h"
#include "RenderObject.h"
namespace WebCore {
StyleGeneratedImage::StyleGeneratedImage(PassRefPtr<CSSImageGeneratorValue> value)
: m_imageGeneratorValue(value)
, m_fixedSize(m_imageGeneratorValue->isFixedSize())
{
m_isGeneratedImage = true;
}
PassRefPtr<CSSValue> StyleGeneratedImage::cssValue() const
{
return m_imageGeneratorValue;
}
IntSize StyleGeneratedImage::imageSize(const RenderObject* renderer, float multiplier) const
{
if (m_fixedSize) {
IntSize fixedSize = m_imageGeneratorValue->fixedSize(renderer);
if (multiplier == 1.0f)
return fixedSize;
int width = fixedSize.width() * multiplier;
int 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(1, width);
if (fixedSize.height() > 0)
height = max(1, height);
return IntSize(width, height);
}
return m_containerSize;
}
void StyleGeneratedImage::computeIntrinsicDimensions(const RenderObject* renderer, Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio)
{
IntSize size = 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
{
renderer->document()->styleSelector()->setStyle(renderer->style());
return m_imageGeneratorValue->image(renderer, size);
}
}
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