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/*
* Copyright (C) 2013 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 HOLDERS AND CONTRIBUTORS
* "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 OR CONTRIBUTORS 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/BoxShape.h"
#include "wtf/MathExtras.h"
namespace WebCore {
LayoutRect BoxShape::shapeMarginLogicalBoundingBox() const
{
FloatRect marginBounds(m_bounds.rect());
if (shapeMargin() > 0)
marginBounds.inflate(shapeMargin());
return static_cast<LayoutRect>(marginBounds);
}
LayoutRect BoxShape::shapePaddingLogicalBoundingBox() const
{
FloatRect paddingBounds(m_bounds.rect());
if (shapePadding() > 0)
paddingBounds.inflate(-shapePadding());
return static_cast<LayoutRect>(paddingBounds);
}
FloatRoundedRect BoxShape::shapeMarginBounds() const
{
FloatRoundedRect marginBounds(m_bounds);
if (shapeMargin() > 0) {
marginBounds.inflate(shapeMargin());
marginBounds.expandRadii(shapeMargin());
}
return marginBounds;
}
FloatRoundedRect BoxShape::shapePaddingBounds() const
{
FloatRoundedRect paddingBounds(m_bounds);
if (shapePadding() > 0) {
paddingBounds.inflate(-shapePadding());
paddingBounds.expandRadii(-shapePadding());
}
return paddingBounds;
}
void BoxShape::getExcludedIntervals(LayoutUnit logicalTop, LayoutUnit logicalHeight, SegmentList& result) const
{
const FloatRoundedRect& marginBounds = shapeMarginBounds();
if (marginBounds.isEmpty() || !lineOverlapsShapeMarginBounds(logicalTop, logicalHeight))
return;
float y1 = logicalTop;
float y2 = logicalTop + logicalHeight;
const FloatRect& rect = marginBounds.rect();
if (!marginBounds.isRounded()) {
result.append(LineSegment(marginBounds.rect().x(), marginBounds.rect().maxX()));
return;
}
float x1 = rect.maxX();
float x2 = rect.x();
float minXIntercept;
float maxXIntercept;
if (marginBounds.xInterceptsAtY(y1, minXIntercept, maxXIntercept)) {
x1 = std::min<float>(x1, minXIntercept);
x2 = std::max<float>(x2, maxXIntercept);
}
if (marginBounds.xInterceptsAtY(y2, minXIntercept, maxXIntercept)) {
x1 = std::min<float>(x1, minXIntercept);
x2 = std::max<float>(x2, maxXIntercept);
}
ASSERT(x2 >= x1);
result.append(LineSegment(x1, x2));
}
void BoxShape::getIncludedIntervals(LayoutUnit logicalTop, LayoutUnit logicalHeight, SegmentList& result) const
{
const FloatRoundedRect& paddingBounds = shapePaddingBounds();
if (paddingBounds.isEmpty())
return;
const FloatRect& rect = paddingBounds.rect();
if (logicalTop < rect.y() || logicalTop + logicalHeight > rect.maxY())
return;
// FIXME: this method is only a stub, https://bugs.webkit.org/show_bug.cgi?id=124605.
result.append(LineSegment(rect.x(), rect.maxX()));
}
bool BoxShape::firstIncludedIntervalLogicalTop(LayoutUnit minLogicalIntervalTop, const LayoutSize&, LayoutUnit& result) const
{
// FIXME: this method is only a stub, https://bugs.webkit.org/show_bug.cgi?id=124606.
result = minLogicalIntervalTop;
return true;
}
} // namespace WebCore
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