SVGStopElement.h   [plain text]

/*
 * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
 * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
 * Copyright (C) 2018 Apple Inc. 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 "SVGAnimatedNumber.h"
#include "SVGElement.h"

namespace WebCore {

class SVGStopElement final : public SVGElement {
    WTF_MAKE_ISO_ALLOCATED(SVGStopElement);
public:
    static Ref<SVGStopElement> create(const QualifiedName&, Document&);

    Color stopColorIncludingOpacity() const;

    float offset() { return m_offset.currentValue(attributeOwnerProxy()); }
    RefPtr<SVGAnimatedNumber> offsetAnimated() { return m_offset.animatedProperty(attributeOwnerProxy()); }

private:
    SVGStopElement(const QualifiedName&, Document&);

    using AttributeOwnerProxy = SVGAttributeOwnerProxyImpl<SVGStopElement, SVGElement>;
    static AttributeOwnerProxy::AttributeRegistry& attributeRegistry() { return AttributeOwnerProxy::attributeRegistry(); }
    static bool isKnownAttribute(const QualifiedName& attributeName) { return AttributeOwnerProxy::isKnownAttribute(attributeName); }
    static void registerAttributes();

    const SVGAttributeOwnerProxy& attributeOwnerProxy() const final { return m_attributeOwnerProxy; }
    void parseAttribute(const QualifiedName&, const AtomicString&) final;
    void svgAttributeChanged(const QualifiedName&) final;

    bool isGradientStop() const final { return true; }

    RenderPtr<RenderElement> createElementRenderer(RenderStyle&&, const RenderTreePosition&) final;
    bool rendererIsNeeded(const RenderStyle&) final;

    AttributeOwnerProxy m_attributeOwnerProxy { *this };
    SVGAnimatedNumberAttribute m_offset { 0 };
};

} // namespace WebCore