Source/WebCore/css/BasicShapeFunctions.cpp

/*
 * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
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 * modification, are permitted provided that the following conditions
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 *    disclaimer.
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#include "config.h"
#include "BasicShapeFunctions.h"

#include "BasicShapes.h"
#include "CSSBasicShapes.h"
#include "CSSPrimitiveValueMappings.h"
#include "CSSValuePool.h"
#include "StyleResolver.h"

namespace WebCore {

PassRefPtr<CSSValue> valueForBasicShape(const BasicShape* basicShape)
{
    RefPtr<CSSBasicShape> basicShapeValue;
    switch (basicShape->type()) {
    case BasicShape::BASIC_SHAPE_RECTANGLE: {
        const BasicShapeRectangle* rectangle = static_cast<const BasicShapeRectangle*>(basicShape);
        RefPtr<CSSBasicShapeRectangle> rectangleValue = CSSBasicShapeRectangle::create();

        rectangleValue->setX(cssValuePool().createValue(rectangle->x()));
        rectangleValue->setY(cssValuePool().createValue(rectangle->y()));
        rectangleValue->setWidth(cssValuePool().createValue(rectangle->width()));
        rectangleValue->setHeight(cssValuePool().createValue(rectangle->height()));
        if (!rectangle->cornerRadiusX().isUndefined()) {
            rectangleValue->setRadiusX(cssValuePool().createValue(rectangle->cornerRadiusX()));
            if (!rectangle->cornerRadiusY().isUndefined())
                rectangleValue->setRadiusY(cssValuePool().createValue(rectangle->cornerRadiusY()));
        }

        basicShapeValue = rectangleValue.release();
        break;
    }
    case BasicShape::BASIC_SHAPE_CIRCLE: {
        const BasicShapeCircle* circle = static_cast<const BasicShapeCircle*>(basicShape);
        RefPtr<CSSBasicShapeCircle> circleValue = CSSBasicShapeCircle::create();

        circleValue->setCenterX(cssValuePool().createValue(circle->centerX()));
        circleValue->setCenterY(cssValuePool().createValue(circle->centerY()));
        circleValue->setRadius(cssValuePool().createValue(circle->radius()));

        basicShapeValue = circleValue.release();
        break;
    }
    case BasicShape::BASIC_SHAPE_ELLIPSE: {
        const BasicShapeEllipse* ellipse = static_cast<const BasicShapeEllipse*>(basicShape);
        RefPtr<CSSBasicShapeEllipse> ellipseValue = CSSBasicShapeEllipse::create();

        ellipseValue->setCenterX(cssValuePool().createValue(ellipse->centerX()));
        ellipseValue->setCenterY(cssValuePool().createValue(ellipse->centerY()));
        ellipseValue->setRadiusX(cssValuePool().createValue(ellipse->radiusX()));
        ellipseValue->setRadiusY(cssValuePool().createValue(ellipse->radiusY()));

        basicShapeValue = ellipseValue.release();
        break;
    }
    case BasicShape::BASIC_SHAPE_POLYGON: {
        const BasicShapePolygon* polygon = static_cast<const BasicShapePolygon*>(basicShape);
        RefPtr<CSSBasicShapePolygon> 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)), cssValuePool().createValue(values.at(i + 1)));

        basicShapeValue = polygonValue.release();
        break;
    }
    default:
        break;
    }
    return cssValuePool().createValue<PassRefPtr<CSSBasicShape> >(basicShapeValue.release());
}

static Length convertToLength(const StyleResolver* styleResolver, CSSPrimitiveValue* value)
{
    return value->convertToLength<FixedIntegerConversion | FixedFloatConversion | PercentConversion | ViewportPercentageConversion>(styleResolver->style(), styleResolver->rootElementStyle(), styleResolver->style()->effectiveZoom());
}

PassRefPtr<BasicShape> basicShapeForValue(const StyleResolver* styleResolver, const CSSBasicShape* basicShapeValue)
{
    RefPtr<BasicShape> basicShape;

    switch (basicShapeValue->type()) {
    case CSSBasicShape::CSS_BASIC_SHAPE_RECTANGLE: {
        const CSSBasicShapeRectangle* rectValue = static_cast<const CSSBasicShapeRectangle *>(basicShapeValue);
        RefPtr<BasicShapeRectangle> rect = BasicShapeRectangle::create();

        rect->setX(convertToLength(styleResolver, rectValue->x()));
        rect->setY(convertToLength(styleResolver, rectValue->y()));
        rect->setWidth(convertToLength(styleResolver, rectValue->width()));
        rect->setHeight(convertToLength(styleResolver, rectValue->height()));
        if (rectValue->radiusX()) {
            rect->setCornerRadiusX(convertToLength(styleResolver, rectValue->radiusX()));
            if (rectValue->radiusY())
                rect->setCornerRadiusY(convertToLength(styleResolver, rectValue->radiusY()));
        }
        basicShape = rect.release();
        break;
    }
    case CSSBasicShape::CSS_BASIC_SHAPE_CIRCLE: {
        const CSSBasicShapeCircle* circleValue = static_cast<const CSSBasicShapeCircle *>(basicShapeValue);
        RefPtr<BasicShapeCircle> circle = BasicShapeCircle::create();

        circle->setCenterX(convertToLength(styleResolver, circleValue->centerX()));
        circle->setCenterY(convertToLength(styleResolver, circleValue->centerY()));
        circle->setRadius(convertToLength(styleResolver, circleValue->radius()));

        basicShape = circle.release();
        break;
    }
    case CSSBasicShape::CSS_BASIC_SHAPE_ELLIPSE: {
        const CSSBasicShapeEllipse* ellipseValue = static_cast<const CSSBasicShapeEllipse *>(basicShapeValue);
        RefPtr<BasicShapeEllipse> ellipse = BasicShapeEllipse::create();

        ellipse->setCenterX(convertToLength(styleResolver, ellipseValue->centerX()));
        ellipse->setCenterY(convertToLength(styleResolver, ellipseValue->centerY()));
        ellipse->setRadiusX(convertToLength(styleResolver, ellipseValue->radiusX()));
        ellipse->setRadiusY(convertToLength(styleResolver, ellipseValue->radiusY()));

        basicShape = ellipse.release();
        break;
    }
    case CSSBasicShape::CSS_BASIC_SHAPE_POLYGON: {
        const CSSBasicShapePolygon* polygonValue = static_cast<const CSSBasicShapePolygon *>(basicShapeValue);
        RefPtr<BasicShapePolygon> polygon = BasicShapePolygon::create();

        polygon->setWindRule(polygonValue->windRule());
        const Vector<RefPtr<CSSPrimitiveValue> >& values = polygonValue->values();
        for (unsigned i = 0; i < values.size(); i += 2)
            polygon->appendPoint(convertToLength(styleResolver, values.at(i).get()), convertToLength(styleResolver, values.at(i + 1).get()));

        basicShape = polygon.release();
        break;
    }
    default:
        break;
    }
    return basicShape.release();
}
}