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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 "BasicShapeFunctions.h"
#include "BasicShapes.h"
#include "CSSBasicShapes.h"
#include "CSSPrimitiveValueMappings.h"
#include "CSSValuePool.h"
#include "Pair.h"
#include "RenderStyle.h"
#include "SVGPathByteStream.h"
namespace WebCore {
static Ref<CSSPrimitiveValue> valueForCenterCoordinate(CSSValuePool& pool, const RenderStyle& style, const BasicShapeCenterCoordinate& center, BoxOrient orientation)
{
if (center.direction() == BasicShapeCenterCoordinate::TopLeft)
return pool.createValue(center.length(), style);
CSSValueID keyword = orientation == BoxOrient::Horizontal ? CSSValueRight : CSSValueBottom;
return pool.createValue(Pair::create(pool.createIdentifierValue(keyword), pool.createValue(center.length(), style)));
}
static Ref<CSSPrimitiveValue> basicShapeRadiusToCSSValue(const RenderStyle& style, CSSValuePool& pool, const BasicShapeRadius& radius)
{
switch (radius.type()) {
case BasicShapeRadius::Value:
return pool.createValue(radius.value(), style);
case BasicShapeRadius::ClosestSide:
return pool.createIdentifierValue(CSSValueClosestSide);
case BasicShapeRadius::FarthestSide:
return pool.createIdentifierValue(CSSValueFarthestSide);
}
ASSERT_NOT_REACHED();
return pool.createIdentifierValue(CSSValueClosestSide);
}
Ref<CSSPrimitiveValue> valueForBasicShape(const RenderStyle& style, const BasicShape& basicShape)
{
auto& cssValuePool = CSSValuePool::singleton();
RefPtr<CSSBasicShape> basicShapeValue;
switch (basicShape.type()) {
case BasicShape::BasicShapeCircleType: {
auto& circle = downcast<BasicShapeCircle>(basicShape);
auto circleValue = CSSBasicShapeCircle::create();
circleValue->setCenterX(valueForCenterCoordinate(cssValuePool, style, circle.centerX(), BoxOrient::Horizontal));
circleValue->setCenterY(valueForCenterCoordinate(cssValuePool, style, circle.centerY(), BoxOrient::Vertical));
circleValue->setRadius(basicShapeRadiusToCSSValue(style, cssValuePool, circle.radius()));
basicShapeValue = WTFMove(circleValue);
break;
}
case BasicShape::BasicShapeEllipseType: {
auto& ellipse = downcast<BasicShapeEllipse>(basicShape);
auto ellipseValue = CSSBasicShapeEllipse::create();
ellipseValue->setCenterX(valueForCenterCoordinate(cssValuePool, style, ellipse.centerX(), BoxOrient::Horizontal));
ellipseValue->setCenterY(valueForCenterCoordinate(cssValuePool, style, ellipse.centerY(), BoxOrient::Vertical));
ellipseValue->setRadiusX(basicShapeRadiusToCSSValue(style, cssValuePool, ellipse.radiusX()));
ellipseValue->setRadiusY(basicShapeRadiusToCSSValue(style, cssValuePool, ellipse.radiusY()));
basicShapeValue = WTFMove(ellipseValue);
break;
}
case BasicShape::BasicShapePolygonType: {
auto& polygon = downcast<BasicShapePolygon>(basicShape);
auto polygonValue = CSSBasicShapePolygon::create();
polygonValue->setWindRule(polygon.windRule());
const Vector<Length>& values = polygon.values();
for (unsigned i = 0; i < values.size(); i += 2)
polygonValue->appendPoint(cssValuePool.createValue(values.at(i), style), cssValuePool.createValue(values.at(i + 1), style));
basicShapeValue = WTFMove(polygonValue);
break;
}
case BasicShape::BasicShapePathType: {
auto& pathShape = downcast<BasicShapePath>(basicShape);
auto pathShapeValue = CSSBasicShapePath::create(pathShape.pathData()->copy());
pathShapeValue->setWindRule(pathShape.windRule());
basicShapeValue = WTFMove(pathShapeValue);
break;
}
case BasicShape::BasicShapeInsetType: {
auto& inset = downcast<BasicShapeInset>(basicShape);
auto insetValue = CSSBasicShapeInset::create();
insetValue->setTop(cssValuePool.createValue(inset.top(), style));
insetValue->setRight(cssValuePool.createValue(inset.right(), style));
insetValue->setBottom(cssValuePool.createValue(inset.bottom(), style));
insetValue->setLeft(cssValuePool.createValue(inset.left(), style));
insetValue->setTopLeftRadius(cssValuePool.createValue(inset.topLeftRadius(), style));
insetValue->setTopRightRadius(cssValuePool.createValue(inset.topRightRadius(), style));
insetValue->setBottomRightRadius(cssValuePool.createValue(inset.bottomRightRadius(), style));
insetValue->setBottomLeftRadius(cssValuePool.createValue(inset.bottomLeftRadius(), style));
basicShapeValue = WTFMove(insetValue);
break;
}
}
return cssValuePool.createValue(basicShapeValue.releaseNonNull());
}
static Length convertToLength(const CSSToLengthConversionData& conversionData, const CSSPrimitiveValue* value)
{
return value->convertToLength<FixedIntegerConversion | FixedFloatConversion | PercentConversion | CalculatedConversion>(conversionData);
}
static LengthSize convertToLengthSize(const CSSToLengthConversionData& conversionData, const CSSPrimitiveValue* value)
{
if (!value)
return { { 0, Fixed }, { 0, Fixed } };
auto& pair = *value->pairValue();
return { convertToLength(conversionData, pair.first()), convertToLength(conversionData, pair.second()) };
}
static BasicShapeCenterCoordinate convertToCenterCoordinate(const CSSToLengthConversionData& conversionData, CSSPrimitiveValue* value)
{
CSSValueID keyword = CSSValueTop;
Length offset { 0, Fixed };
if (!value)
keyword = CSSValueCenter;
else if (value->isValueID())
keyword = value->valueID();
else if (Pair* pair = value->pairValue()) {
keyword = pair->first()->valueID();
offset = convertToLength(conversionData, pair->second());
} else
offset = convertToLength(conversionData, value);
BasicShapeCenterCoordinate::Direction direction;
switch (keyword) {
case CSSValueTop:
case CSSValueLeft:
direction = BasicShapeCenterCoordinate::TopLeft;
break;
case CSSValueRight:
case CSSValueBottom:
direction = BasicShapeCenterCoordinate::BottomRight;
break;
case CSSValueCenter:
direction = BasicShapeCenterCoordinate::TopLeft;
offset = Length(50, Percent);
break;
default:
ASSERT_NOT_REACHED();
direction = BasicShapeCenterCoordinate::TopLeft;
break;
}
return BasicShapeCenterCoordinate(direction, offset);
}
static BasicShapeRadius cssValueToBasicShapeRadius(const CSSToLengthConversionData& conversionData, CSSPrimitiveValue* radius)
{
if (!radius)
return BasicShapeRadius(BasicShapeRadius::ClosestSide);
if (radius->isValueID()) {
switch (radius->valueID()) {
case CSSValueClosestSide:
return BasicShapeRadius(BasicShapeRadius::ClosestSide);
case CSSValueFarthestSide:
return BasicShapeRadius(BasicShapeRadius::FarthestSide);
default:
ASSERT_NOT_REACHED();
break;
}
}
return BasicShapeRadius(convertToLength(conversionData, radius));
}
Ref<BasicShape> basicShapeForValue(const CSSToLengthConversionData& conversionData, const CSSBasicShape& basicShapeValue)
{
RefPtr<BasicShape> basicShape;
switch (basicShapeValue.type()) {
case CSSBasicShape::CSSBasicShapeCircleType: {
auto& circleValue = downcast<CSSBasicShapeCircle>(basicShapeValue);
auto circle = BasicShapeCircle::create();
circle->setCenterX(convertToCenterCoordinate(conversionData, circleValue.centerX()));
circle->setCenterY(convertToCenterCoordinate(conversionData, circleValue.centerY()));
circle->setRadius(cssValueToBasicShapeRadius(conversionData, circleValue.radius()));
basicShape = WTFMove(circle);
break;
}
case CSSBasicShape::CSSBasicShapeEllipseType: {
auto& ellipseValue = downcast<CSSBasicShapeEllipse>(basicShapeValue);
auto ellipse = BasicShapeEllipse::create();
ellipse->setCenterX(convertToCenterCoordinate(conversionData, ellipseValue.centerX()));
ellipse->setCenterY(convertToCenterCoordinate(conversionData, ellipseValue.centerY()));
ellipse->setRadiusX(cssValueToBasicShapeRadius(conversionData, ellipseValue.radiusX()));
ellipse->setRadiusY(cssValueToBasicShapeRadius(conversionData, ellipseValue.radiusY()));
basicShape = WTFMove(ellipse);
break;
}
case CSSBasicShape::CSSBasicShapePolygonType: {
auto& polygonValue = downcast<CSSBasicShapePolygon>(basicShapeValue);
auto polygon = BasicShapePolygon::create();
polygon->setWindRule(polygonValue.windRule());
auto& values = polygonValue.values();
for (unsigned i = 0; i < values.size(); i += 2)
polygon->appendPoint(convertToLength(conversionData, values[i].ptr()), convertToLength(conversionData, values[i + 1].ptr()));
basicShape = WTFMove(polygon);
break;
}
case CSSBasicShape::CSSBasicShapeInsetType: {
auto& rectValue = downcast<CSSBasicShapeInset>(basicShapeValue);
auto rect = BasicShapeInset::create();
rect->setTop(convertToLength(conversionData, rectValue.top()));
rect->setRight(convertToLength(conversionData, rectValue.right()));
rect->setBottom(convertToLength(conversionData, rectValue.bottom()));
rect->setLeft(convertToLength(conversionData, rectValue.left()));
rect->setTopLeftRadius(convertToLengthSize(conversionData, rectValue.topLeftRadius()));
rect->setTopRightRadius(convertToLengthSize(conversionData, rectValue.topRightRadius()));
rect->setBottomRightRadius(convertToLengthSize(conversionData, rectValue.bottomRightRadius()));
rect->setBottomLeftRadius(convertToLengthSize(conversionData, rectValue.bottomLeftRadius()));
basicShape = WTFMove(rect);
break;
}
case CSSBasicShape::CSSBasicShapePathType: {
auto& pathValue = downcast<CSSBasicShapePath>(basicShapeValue);
auto path = BasicShapePath::create(pathValue.pathData().copy());
path->setWindRule(pathValue.windRule());
basicShape = WTFMove(path);
break;
}
}
return basicShape.releaseNonNull();
}
float floatValueForCenterCoordinate(const BasicShapeCenterCoordinate& center, float boxDimension)
{
float offset = floatValueForLength(center.length(), boxDimension);
if (center.direction() == BasicShapeCenterCoordinate::TopLeft)
return offset;
return boxDimension - offset;
}
}