/*
 * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#pragma once

#include "RadialGradientAttributes.h"
#include "RenderSVGResourceGradient.h"
#include "SVGRadialGradientElement.h"

namespace WebCore {

class SVGRadialGradientElement;

class RenderSVGResourceRadialGradient final : public RenderSVGResourceGradient {
    WTF_MAKE_ISO_ALLOCATED(RenderSVGResourceRadialGradient);
public:
    RenderSVGResourceRadialGradient(SVGRadialGradientElement&, RenderStyle&&);
    virtual ~RenderSVGResourceRadialGradient();

    SVGRadialGradientElement& radialGradientElement() const { return downcast<SVGRadialGradientElement>(RenderSVGResourceGradient::gradientElement()); }

    RenderSVGResourceType resourceType() const override { return RadialGradientResourceType; }

    SVGUnitTypes::SVGUnitType gradientUnits() const override { return m_attributes.gradientUnits(); }
    void calculateGradientTransform(AffineTransform& transform) override { transform = m_attributes.gradientTransform(); }
    void buildGradient(GradientData*) const override;

    FloatPoint centerPoint(const RadialGradientAttributes&) const;
    FloatPoint focalPoint(const RadialGradientAttributes&) const;
    float radius(const RadialGradientAttributes&) const;
    float focalRadius(const RadialGradientAttributes&) const;

private:
    void gradientElement() const = delete;

    const char* renderName() const override { return "RenderSVGResourceRadialGradient"; }
    bool collectGradientAttributes() override;

    RadialGradientAttributes m_attributes;
};

} // namespace WebCore

SPECIALIZE_TYPE_TRAITS_RENDER_SVG_RESOURCE(RenderSVGResourceRadialGradient, RadialGradientResourceType)