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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 "core/rendering/shapes/ShapeInfo.h"
#include "core/rendering/RenderRegion.h"
#include "core/rendering/shapes/Shape.h"
#include "core/rendering/style/RenderStyle.h"
namespace WebCore {
template<class RenderType, ShapeValue* (RenderStyle::*shapeGetter)() const, void (Shape::*intervalGetter)(LayoutUnit, LayoutUnit, SegmentList&) const>
const Shape* ShapeInfo<RenderType, shapeGetter, intervalGetter>::computedShape() const
{
if (Shape* shape = m_shape.get())
return shape;
const LayoutSize logicalBoxSize(m_shapeLogicalWidth, m_shapeLogicalHeight);
WritingMode writingMode = m_renderer->style()->writingMode();
Length margin = m_renderer->style()->shapeMargin();
Length padding = m_renderer->style()->shapePadding();
const ShapeValue* shapeValue = (m_renderer->style()->*shapeGetter)();
ASSERT(shapeValue);
switch (shapeValue->type()) {
case ShapeValue::Shape:
ASSERT(shapeValue->shape());
m_shape = Shape::createShape(shapeValue->shape(), logicalBoxSize, writingMode, margin, padding);
break;
case ShapeValue::Image:
ASSERT(shapeValue->image());
m_shape = Shape::createShape(shapeValue->image(), 0, logicalBoxSize, writingMode, margin, padding);
break;
default:
ASSERT_NOT_REACHED();
}
ASSERT(m_shape);
return m_shape.get();
}
template<class RenderType, ShapeValue* (RenderStyle::*shapeGetter)() const, void (Shape::*intervalGetter)(LayoutUnit, LayoutUnit, SegmentList&) const>
bool ShapeInfo<RenderType, shapeGetter, intervalGetter>::computeSegmentsForLine(LayoutUnit lineTop, LayoutUnit lineHeight)
{
ASSERT(lineHeight >= 0);
m_shapeLineTop = lineTop - logicalTopOffset();
m_lineHeight = lineHeight;
m_segments.clear();
if (lineOverlapsShapeBounds())
(computedShape()->*intervalGetter)(m_shapeLineTop, std::min(m_lineHeight, shapeLogicalBottom() - lineTop), m_segments);
LayoutUnit logicalLeftOffset = this->logicalLeftOffset();
for (size_t i = 0; i < m_segments.size(); i++) {
m_segments[i].logicalLeft += logicalLeftOffset;
m_segments[i].logicalRight += logicalLeftOffset;
}
return m_segments.size();
}
template class ShapeInfo<RenderBlock, &RenderStyle::resolvedShapeInside, &Shape::getIncludedIntervals>;
template class ShapeInfo<RenderBox, &RenderStyle::shapeOutside, &Shape::getExcludedIntervals>;
}
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