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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.
*/
#ifndef ShapeInsideInfo_h
#define ShapeInsideInfo_h
#if ENABLE(CSS_SHAPES)
#include "ShapeInfo.h"
#include <wtf/PassOwnPtr.h>
#include <wtf/Vector.h>
namespace WebCore {
class InlineIterator;
class RenderBlock;
class RenderObject;
struct LineSegmentIterator {
RenderObject* root;
RenderObject* object;
unsigned offset;
LineSegmentIterator(RenderObject* root, RenderObject* object, unsigned offset)
: root(root)
, object(object)
, offset(offset)
{
}
};
struct LineSegmentRange {
LineSegmentIterator start;
LineSegmentIterator end;
LineSegmentRange(const InlineIterator& start, const InlineIterator& end);
};
typedef Vector<LineSegmentRange> SegmentRangeList;
class ShapeInsideInfo : public ShapeInfo<RenderBlock, &RenderStyle::resolvedShapeInside, &Shape::getIncludedIntervals> {
public:
static PassOwnPtr<ShapeInsideInfo> createInfo(const RenderBlock* renderer) { return adoptPtr(new ShapeInsideInfo(renderer)); }
static bool isEnabledFor(const RenderBlock* renderer);
virtual bool computeSegmentsForLine(LayoutUnit lineTop, LayoutUnit lineHeight) OVERRIDE
{
m_segmentRanges.clear();
return ShapeInfo<RenderBlock, &RenderStyle::resolvedShapeInside, &Shape::getIncludedIntervals>::computeSegmentsForLine(lineTop, lineHeight);
}
bool hasSegments() const
{
return lineOverlapsShapeBounds() && m_segments.size();
}
const SegmentList& segments() const
{
ASSERT(hasSegments());
return m_segments;
}
SegmentRangeList& segmentRanges() { return m_segmentRanges; }
const SegmentRangeList& segmentRanges() const { return m_segmentRanges; }
const LineSegment* currentSegment() const
{
if (!hasSegments())
return 0;
ASSERT(m_segmentRanges.size() < m_segments.size());
return &m_segments[m_segmentRanges.size()];
}
bool adjustLogicalLineTop(float minSegmentWidth);
void setNeedsLayout(bool value) { m_needsLayout = value; }
bool needsLayout() { return m_needsLayout; }
protected:
virtual LayoutRect computedShapeLogicalBoundingBox() const OVERRIDE { return computedShape()->shapePaddingLogicalBoundingBox(); }
private:
ShapeInsideInfo(const RenderBlock* renderer)
: ShapeInfo<RenderBlock, &RenderStyle::resolvedShapeInside, &Shape::getIncludedIntervals> (renderer)
, m_needsLayout(false)
{ }
SegmentRangeList m_segmentRanges;
bool m_needsLayout:1;
};
}
#endif
#endif
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