Source/WebCore/svg/SVGPathSeg.h

/*
 * Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
 * Copyright (C) 2004, 2005, 2006, 2008 Rob Buis <buis@kde.org>
 * Copyright (C) 2019-2023 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 "SVGProperty.h"
#include <wtf/EnumTraits.h>
#include <wtf/text/WTFString.h>

namespace WebCore {

enum class SVGPathSegType : uint8_t {
    Unknown = 0,
    ClosePath = 1,
    MoveToAbs = 2,
    MoveToRel = 3,
    LineToAbs = 4,
    LineToRel = 5,
    CurveToCubicAbs = 6,
    CurveToCubicRel = 7,
    CurveToQuadraticAbs = 8,
    CurveToQuadraticRel = 9,
    ArcAbs = 10,
    ArcRel = 11,
    LineToHorizontalAbs = 12,
    LineToHorizontalRel = 13,
    LineToVerticalAbs = 14,
    LineToVerticalRel = 15,
    CurveToCubicSmoothAbs = 16,
    CurveToCubicSmoothRel = 17,
    CurveToQuadraticSmoothAbs = 18,
    CurveToQuadraticSmoothRel = 19
};

class SVGPathSeg : public SVGProperty {
public:
    virtual ~SVGPathSeg() = default;

    // Forward declare these enums in the w3c naming scheme, for IDL generation
    enum {
        PATHSEG_UNKNOWN = enumToUnderlyingType(SVGPathSegType::Unknown),
        PATHSEG_CLOSEPATH = enumToUnderlyingType(SVGPathSegType::ClosePath),
        PATHSEG_MOVETO_ABS = enumToUnderlyingType(SVGPathSegType::MoveToAbs),
        PATHSEG_MOVETO_REL = enumToUnderlyingType(SVGPathSegType::MoveToRel),
        PATHSEG_LINETO_ABS = enumToUnderlyingType(SVGPathSegType::LineToAbs),
        PATHSEG_LINETO_REL = enumToUnderlyingType(SVGPathSegType::LineToRel),
        PATHSEG_CURVETO_CUBIC_ABS = enumToUnderlyingType(SVGPathSegType::CurveToCubicAbs),
        PATHSEG_CURVETO_CUBIC_REL = enumToUnderlyingType(SVGPathSegType::CurveToCubicRel),
        PATHSEG_CURVETO_QUADRATIC_ABS = enumToUnderlyingType(SVGPathSegType::CurveToQuadraticAbs),
        PATHSEG_CURVETO_QUADRATIC_REL = enumToUnderlyingType(SVGPathSegType::CurveToQuadraticRel),
        PATHSEG_ARC_ABS = enumToUnderlyingType(SVGPathSegType::ArcAbs),
        PATHSEG_ARC_REL = enumToUnderlyingType(SVGPathSegType::ArcRel),
        PATHSEG_LINETO_HORIZONTAL_ABS = enumToUnderlyingType(SVGPathSegType::LineToHorizontalAbs),
        PATHSEG_LINETO_HORIZONTAL_REL = enumToUnderlyingType(SVGPathSegType::LineToHorizontalRel),
        PATHSEG_LINETO_VERTICAL_ABS = enumToUnderlyingType(SVGPathSegType::LineToVerticalAbs),
        PATHSEG_LINETO_VERTICAL_REL = enumToUnderlyingType(SVGPathSegType::LineToVerticalRel),
        PATHSEG_CURVETO_CUBIC_SMOOTH_ABS = enumToUnderlyingType(SVGPathSegType::CurveToCubicSmoothAbs),
        PATHSEG_CURVETO_CUBIC_SMOOTH_REL = enumToUnderlyingType(SVGPathSegType::CurveToCubicSmoothRel),
        PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS = enumToUnderlyingType(SVGPathSegType::CurveToQuadraticSmoothAbs),
        PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL = enumToUnderlyingType(SVGPathSegType::CurveToQuadraticSmoothRel)
    };

    virtual SVGPathSegType pathSegType() const = 0;
    unsigned short pathSegTypeForBindings() const { return static_cast<unsigned short>(pathSegType()); }
    virtual String pathSegTypeAsLetter() const = 0;
    virtual Ref<SVGPathSeg> clone() const = 0;

protected:
    using SVGProperty::SVGProperty;
};

} // namespace WebCore