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/*
* Copyright (C) 2003-2023 Apple Inc. All rights reserved.
* Copyright (C) 2006 Rob Buis <buis@kde.org>
* Copyright (C) 2007-2008 Torch Mobile, Inc.
*
* 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
#include "PathElement.h"
#include "PathImpl.h"
#include "PathSegment.h"
#include "PlatformPath.h"
#include "WindRule.h"
#include <wtf/FastMalloc.h>
#include <wtf/UniqueRef.h>
namespace WebCore {
class GraphicsContext;
class PathTraversalState;
class RoundedRect;
class Path {
WTF_MAKE_FAST_ALLOCATED;
public:
Path() = default;
WEBCORE_EXPORT Path(PathSegment&&);
WEBCORE_EXPORT Path(Vector<PathSegment>&&);
explicit Path(const Vector<FloatPoint>& points);
Path(UniqueRef<PathImpl>&&);
WEBCORE_EXPORT Path(const Path&);
Path(Path&&) = default;
WEBCORE_EXPORT Path& operator=(const Path&);
Path& operator=(Path&&) = default;
WEBCORE_EXPORT bool operator==(const Path&) const;
// FIXME: Remove this method when the call of it from WebKitAdditions in is removed.
static Path polygonPathFromPoints(const Vector<FloatPoint>&);
WEBCORE_EXPORT void moveTo(const FloatPoint&);
WEBCORE_EXPORT void addLineTo(const FloatPoint&);
WEBCORE_EXPORT void addQuadCurveTo(const FloatPoint& controlPoint, const FloatPoint& endPoint);
void addBezierCurveTo(const FloatPoint& controlPoint1, const FloatPoint& controlPoint2, const FloatPoint& endPoint);
void addArcTo(const FloatPoint& point1, const FloatPoint& point2, float radius);
void addArc(const FloatPoint&, float radius, float startAngle, float endAngle, RotationDirection);
void addEllipse(const FloatPoint&, float radiusX, float radiusY, float rotation, float startAngle, float endAngle, RotationDirection);
void addEllipseInRect(const FloatRect&);
WEBCORE_EXPORT void addRect(const FloatRect&);
WEBCORE_EXPORT void addRoundedRect(const FloatRoundedRect&, PathRoundedRect::Strategy = PathRoundedRect::Strategy::PreferNative);
void addRoundedRect(const FloatRect&, const FloatSize& roundingRadii, PathRoundedRect::Strategy = PathRoundedRect::Strategy::PreferNative);
void addRoundedRect(const RoundedRect&);
WEBCORE_EXPORT void closeSubpath();
void addPath(const Path&, const AffineTransform&);
void applySegments(const PathSegmentApplier&) const;
WEBCORE_EXPORT void applyElements(const PathElementApplier&) const;
void clear();
void translate(const FloatSize& delta);
void transform(const AffineTransform&);
static constexpr float circleControlPoint() { return PathImpl::circleControlPoint(); }
WEBCORE_EXPORT std::optional<PathSegment> singleSegment() const;
std::optional<PathDataLine> singleDataLine() const;
std::optional<PathArc> singleArc() const;
std::optional<PathDataQuadCurve> singleQuadCurve() const;
std::optional<PathDataBezierCurve> singleBezierCurve() const;
WEBCORE_EXPORT bool isEmpty() const;
WEBCORE_EXPORT PlatformPathPtr platformPath() const;
const PathSegment* singleSegmentIfExists() const { return asSingle(); }
WEBCORE_EXPORT const Vector<PathSegment>* segmentsIfExists() const;
WEBCORE_EXPORT Vector<PathSegment> segments() const;
float length() const;
bool isClosed() const;
FloatPoint currentPoint() const;
PathTraversalState traversalStateAtLength(float length) const;
FloatPoint pointAtLength(float length) const;
bool contains(const FloatPoint&, WindRule = WindRule::NonZero) const;
bool strokeContains(const FloatPoint&, const Function<void(GraphicsContext&)>& strokeStyleApplier) const;
WEBCORE_EXPORT FloatRect fastBoundingRect() const;
FloatRect boundingRect() const;
FloatRect strokeBoundingRect(const Function<void(GraphicsContext&)>& strokeStyleApplier = { }) const;
private:
PlatformPathImpl& ensurePlatformPathImpl();
PathImpl& setImpl(UniqueRef<PathImpl>);
PathImpl& ensureImpl();
PathSegment* asSingle() { return std::get_if<PathSegment>(&m_data); }
const PathSegment* asSingle() const { return std::get_if<PathSegment>(&m_data); }
PathImpl* asImpl();
const PathImpl* asImpl() const;
const PathMoveTo* asSingleMoveTo() const;
std::variant<std::monostate, PathSegment, UniqueRef<PathImpl>> m_data;
};
WEBCORE_EXPORT WTF::TextStream& operator<<(WTF::TextStream&, const Path&);
} // namespace WebCore
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