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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 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 "ExclusionShape.h"
#include "BasicShapeFunctions.h"
#include "ExclusionRectangle.h"
#include "LengthFunctions.h"
#include "NotImplemented.h"
#include "WindRule.h"
#include <wtf/MathExtras.h>
#include <wtf/OwnPtr.h>
#include <wtf/PassOwnPtr.h>
namespace WebCore {
static PassOwnPtr<ExclusionShape> createExclusionRectangle(float x, float y, float width, float height, float rx, float ry)
{
ASSERT(width >= 0 && height >= 0 && rx >= 0 && ry >= 0);
return adoptPtr(new ExclusionRectangle(x, y, width, height, rx, ry));
}
static PassOwnPtr<ExclusionShape> createExclusionCircle(float cx, float cy, float radius)
{
ASSERT(radius >= 0);
return adoptPtr(new ExclusionRectangle(cx - radius, cy - radius, cx + radius, cy + radius, radius, radius));
}
static PassOwnPtr<ExclusionShape> createExclusionEllipse(float cx, float cy, float rx, float ry)
{
ASSERT(rx >= 0 && ry >= 0);
return adoptPtr(new ExclusionRectangle(cx - rx, cy - ry, cx + rx, cy + ry, rx, ry));
}
PassOwnPtr<ExclusionShape> ExclusionShape::createExclusionShape(const BasicShape* wrapShape, float borderBoxLogicalWidth, float borderBoxLogicalHeight)
{
if (!wrapShape)
return nullptr;
switch (wrapShape->type()) {
case BasicShape::BASIC_SHAPE_RECTANGLE: {
const BasicShapeRectangle* rectangle = static_cast<const BasicShapeRectangle*>(wrapShape);
Length rx = rectangle->cornerRadiusX();
Length ry = rectangle->cornerRadiusY();
return createExclusionRectangle(
floatValueForLength(rectangle->x(), borderBoxLogicalWidth),
floatValueForLength(rectangle->y(), borderBoxLogicalHeight),
floatValueForLength(rectangle->width(), borderBoxLogicalWidth),
floatValueForLength(rectangle->height(), borderBoxLogicalHeight),
rx.isUndefined() ? 0 : floatValueForLength(rx, borderBoxLogicalWidth),
ry.isUndefined() ? 0 : floatValueForLength(ry, borderBoxLogicalHeight) );
}
case BasicShape::BASIC_SHAPE_CIRCLE: {
const BasicShapeCircle* circle = static_cast<const BasicShapeCircle*>(wrapShape);
return createExclusionCircle(
floatValueForLength(circle->centerX(), borderBoxLogicalWidth),
floatValueForLength(circle->centerY(), borderBoxLogicalHeight),
floatValueForLength(circle->radius(), std::max(borderBoxLogicalHeight, borderBoxLogicalWidth)) );
}
case BasicShape::BASIC_SHAPE_ELLIPSE: {
const BasicShapeEllipse* ellipse = static_cast<const BasicShapeEllipse*>(wrapShape);
return createExclusionEllipse(
floatValueForLength(ellipse->centerX(), borderBoxLogicalWidth),
floatValueForLength(ellipse->centerY(), borderBoxLogicalHeight),
floatValueForLength(ellipse->radiusX(), borderBoxLogicalWidth),
floatValueForLength(ellipse->radiusY(), borderBoxLogicalHeight) );
}
case BasicShape::BASIC_SHAPE_POLYGON:
notImplemented();
}
ASSERT_NOT_REACHED();
return nullptr;
}
} // namespace WebCore
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