File: PathCairo.h

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/*
 * Copyright (C) 2023 Apple Inc.  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 APPLE INC. ``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 APPLE INC. OR
 * CONTRIBUTORS 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.
 */

#pragma once

#if USE(CAIRO)

#include "PathImpl.h"
#include "PathStream.h"
#include "PlatformPath.h"
#include "WindRule.h"

namespace WebCore {

class GraphicsContext;
class PathStream;

class PathCairo final : public PathImpl {
public:
    static UniqueRef<PathCairo> create();
    static UniqueRef<PathCairo> create(const PathStream&);
    static UniqueRef<PathCairo> create(RefPtr<cairo_t>&&, std::unique_ptr<PathStream>&& = nullptr);

    PathCairo();
    PathCairo(RefPtr<cairo_t>&&, std::unique_ptr<PathStream>&&);

    PlatformPathPtr platformPath() const;

    bool operator==(const PathImpl&) const final;

    void addPath(const PathCairo&, const AffineTransform&);

    bool applyElements(const PathElementApplier&) const final;

    bool transform(const AffineTransform&) final;

    bool contains(const FloatPoint&, WindRule) const;
    bool strokeContains(const FloatPoint&, const Function<void(GraphicsContext&)>& strokeStyleApplier) const;

    FloatRect strokeBoundingRect(const Function<void(GraphicsContext&)>& strokeStyleApplier) const;

private:
    UniqueRef<PathImpl> clone() const final;

    void moveTo(const FloatPoint&) final;

    void addLineTo(const FloatPoint&) final;
    void addQuadCurveTo(const FloatPoint& controlPoint, const FloatPoint& endPoint) final;
    void addBezierCurveTo(const FloatPoint& controlPoint1, const FloatPoint& controlPoint2, const FloatPoint& endPoint) final;
    void addArcTo(const FloatPoint& point1, const FloatPoint& point2, float radius) final;

    void addArc(const FloatPoint&, float radius, float startAngle, float endAngle, RotationDirection) final;
    void addEllipse(const FloatPoint&, float radiusX, float radiusY, float rotation, float startAngle, float endAngle, RotationDirection) final;
    void addEllipseInRect(const FloatRect&) final;
    void addRect(const FloatRect&) final;
    void addRoundedRect(const FloatRoundedRect&, PathRoundedRect::Strategy) final;

    void closeSubpath() final;

    void applySegments(const PathSegmentApplier&) const final;

    bool isEmpty() const final;

    FloatPoint currentPoint() const final;

    FloatRect fastBoundingRect() const final;
    FloatRect boundingRect() const final;

    RefPtr<cairo_t> m_platformPath;
    std::unique_ptr<PathStream> m_elementsStream;
};

} // namespace WebCore

SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::PathCairo)
    static bool isType(const WebCore::PathImpl& pathImpl) { return !pathImpl.isPathStream(); }
SPECIALIZE_TYPE_TRAITS_END()

#endif // USE(CAIRO)