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/*
* Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "config.h"
#include "ExclusionShapeInsideInfo.h"
#if ENABLE(CSS_EXCLUSIONS)
#include "NotImplemented.h"
#include "RenderBlock.h"
#include <wtf/HashMap.h>
#include <wtf/OwnPtr.h>
namespace WebCore {
typedef HashMap<const RenderBlock*, OwnPtr<ExclusionShapeInsideInfo> > ExclusionShapeInsideInfoMap;
static ExclusionShapeInsideInfoMap& exclusionShapeInsideInfoMap()
{
DEFINE_STATIC_LOCAL(ExclusionShapeInsideInfoMap, staticExclusionShapeInsideInfoMap, ());
return staticExclusionShapeInsideInfoMap;
}
ExclusionShapeInsideInfo::ExclusionShapeInsideInfo(RenderBlock* block)
: m_block(block)
, m_shapeSizeDirty(true)
{
}
ExclusionShapeInsideInfo::~ExclusionShapeInsideInfo()
{
}
ExclusionShapeInsideInfo* ExclusionShapeInsideInfo::ensureExclusionShapeInsideInfoForRenderBlock(RenderBlock* block)
{
ExclusionShapeInsideInfoMap::AddResult result = exclusionShapeInsideInfoMap().add(block, create(block));
return result.iterator->value.get();
}
ExclusionShapeInsideInfo* ExclusionShapeInsideInfo::exclusionShapeInsideInfoForRenderBlock(const RenderBlock* block)
{
ASSERT(block->style()->shapeInside());
return exclusionShapeInsideInfoMap().get(block);
}
bool ExclusionShapeInsideInfo::isExclusionShapeInsideInfoEnabledForRenderBlock(const RenderBlock* block)
{
// FIXME: Bug 89707: Enable shape inside for non-rectangular shapes
ExclusionShapeValue* shapeValue = block->style()->shapeInside();
BasicShape* shape = (shapeValue && shapeValue->type() == ExclusionShapeValue::SHAPE) ? shapeValue->shape() : 0;
return shape && (shape->type() == BasicShape::BASIC_SHAPE_RECTANGLE || shape->type() == BasicShape::BASIC_SHAPE_POLYGON);
}
void ExclusionShapeInsideInfo::removeExclusionShapeInsideInfoForRenderBlock(const RenderBlock* block)
{
if (!block->style() || !block->style()->shapeInside())
return;
exclusionShapeInsideInfoMap().remove(block);
}
void ExclusionShapeInsideInfo::computeShapeSize(LayoutUnit logicalWidth, LayoutUnit logicalHeight)
{
if (!m_shapeSizeDirty && logicalWidth == m_logicalWidth && logicalHeight == m_logicalHeight)
return;
m_shapeSizeDirty = false;
m_logicalWidth = logicalWidth;
m_logicalHeight = logicalHeight;
// FIXME: Bug 89993: The wrap shape may come from the parent object
ExclusionShapeValue* shapeValue = m_block->style()->shapeInside();
BasicShape* shape = (shapeValue && shapeValue->type() == ExclusionShapeValue::SHAPE) ? shapeValue->shape() : 0;
ASSERT(shape);
m_shape = ExclusionShape::createExclusionShape(shape, logicalWidth, logicalHeight, m_block->style()->writingMode());
ASSERT(m_shape);
}
bool ExclusionShapeInsideInfo::computeSegmentsForLine(LayoutUnit lineTop, LayoutUnit lineHeight)
{
ASSERT(lineHeight >= 0);
m_lineTop = lineTop;
m_lineHeight = lineHeight;
m_segments.clear();
if (lineOverlapsShapeBounds()) {
ASSERT(m_shape);
m_shape->getIncludedIntervals(lineTop, std::min(lineHeight, shapeLogicalBottom() - lineTop), m_segments);
}
return m_segments.size();
}
}
#endif
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