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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 "WrapShapeInfo.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<WrapShapeInfo> > WrapShapeInfoMap;
static WrapShapeInfoMap& wrapShapeInfoMap()
{
DEFINE_STATIC_LOCAL(WrapShapeInfoMap, staticWrapShapeInfoMap, ());
return staticWrapShapeInfoMap;
}
WrapShapeInfo::WrapShapeInfo(RenderBlock* block)
: m_block(block)
, m_wrapShapeSizeDirty(true)
{
}
WrapShapeInfo::~WrapShapeInfo()
{
}
WrapShapeInfo* WrapShapeInfo::ensureWrapShapeInfoForRenderBlock(RenderBlock* block)
{
WrapShapeInfoMap::AddResult result = wrapShapeInfoMap().add(block, create(block));
return result.iterator->second.get();
}
WrapShapeInfo* WrapShapeInfo::wrapShapeInfoForRenderBlock(const RenderBlock* block)
{
ASSERT(block->style()->wrapShapeInside());
return wrapShapeInfoMap().get(block);
}
bool WrapShapeInfo::isWrapShapeInfoEnabledForRenderBlock(const RenderBlock* block)
{
// FIXME: Bug 89705: Enable shape inside for vertical writing modes
if (!block->isHorizontalWritingMode())
return false;
// FIXME: Bug 89707: Enable shape inside for non-rectangular shapes
BasicShape* shape = block->style()->wrapShapeInside();
return (shape && shape->type() == BasicShape::BASIC_SHAPE_RECTANGLE);
}
void WrapShapeInfo::removeWrapShapeInfoForRenderBlock(const RenderBlock* block)
{
if (!block->style() || !block->style()->wrapShapeInside())
return;
wrapShapeInfoMap().remove(block);
}
bool WrapShapeInfo::hasSegments() const
{
// All line positions within a shape should have at least one segment
ASSERT(lineState() != LINE_INSIDE_SHAPE || m_segments.size());
return m_segments.size();
}
void WrapShapeInfo::computeShapeSize(LayoutUnit logicalWidth, LayoutUnit logicalHeight)
{
if (!m_wrapShapeSizeDirty && logicalWidth == m_logicalWidth && logicalHeight == m_logicalHeight)
return;
m_wrapShapeSizeDirty = false;
m_logicalWidth = logicalWidth;
m_logicalHeight = logicalHeight;
// FIXME: Bug 89993: The wrap shape may come from the parent object
BasicShape* shape = m_block->style()->wrapShapeInside();
ASSERT(shape);
m_shape = ExclusionShape::createExclusionShape(shape, logicalWidth, logicalHeight);
ASSERT(m_shape);
}
bool WrapShapeInfo::computeSegmentsForLine(LayoutUnit lineTop)
{
m_lineTop = lineTop;
m_segments.clear();
if (lineState() == LINE_INSIDE_SHAPE) {
ASSERT(m_shape);
Vector<ExclusionInterval> intervals;
m_shape->getInsideIntervals(lineTop, lineTop, intervals); // FIXME: Bug 95479, workaround for now
for (size_t i = 0; i < intervals.size(); i++) {
LineSegment segment;
segment.logicalLeft = intervals[i].x1;
segment.logicalRight = intervals[i].x2;
m_segments.append(segment);
}
}
return m_segments.size();
}
}
#endif
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