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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
#include "PathImpl.h"
#include "PathSegment.h"
#include <wtf/DataRef.h>
#include <wtf/ThreadSafeRefCounted.h>
#include <wtf/Vector.h>
namespace WebCore {
class PathStream final : public PathImpl {
public:
static UniqueRef<PathStream> create();
static UniqueRef<PathStream> create(PathSegment&&);
static UniqueRef<PathStream> create(const Vector<FloatPoint>&);
static UniqueRef<PathStream> create(Vector<PathSegment>&&);
PathStream();
PathStream(const PathStream&);
PathStream(PathSegment&&);
PathStream(Vector<PathSegment>&&);
PathStream(const Vector<PathSegment>&);
UniqueRef<PathImpl> clone() const final;
bool operator==(const PathImpl& other) 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;
WEBCORE_EXPORT const Vector<PathSegment>& segments() const;
void applySegments(const PathSegmentApplier&) const final;
bool applyElements(const PathElementApplier&) const final;
bool transform(const AffineTransform&) final;
FloatRect fastBoundingRect() const final;
FloatRect boundingRect() const final;
static FloatRect computeFastBoundingRect(std::span<const PathSegment>);
static FloatRect computeBoundingRect(std::span<const PathSegment>);
private:
struct SegmentsData : public ThreadSafeRefCounted<SegmentsData> {
WTF_MAKE_STRUCT_FAST_ALLOCATED;
static Ref<SegmentsData> create()
{
return adoptRef(*new SegmentsData);
}
static Ref<SegmentsData> create(PathSegment&& segment)
{
auto result = adoptRef(*new SegmentsData);
result->segments.append(WTFMove(segment));
return result;
}
static Ref<SegmentsData> create(Vector<PathSegment>&& segments)
{
auto result = adoptRef(*new SegmentsData);
result->segments = WTFMove(segments);
return result;
}
static Ref<SegmentsData> create(const Vector<PathSegment>& segments)
{
auto result = adoptRef(*new SegmentsData);
result->segments = segments;
return result;
}
Ref<SegmentsData> copy() const
{
return create(segments);
}
bool operator==(const SegmentsData& other) const
{
return segments == other.segments;
}
Vector<PathSegment> segments;
};
static UniqueRef<PathStream> create(const PathStream&);
static UniqueRef<PathStream> create(const Vector<PathSegment>&);
const PathMoveTo* lastIfMoveTo() const;
bool isPathStream() const final { return true; }
template<typename DataType>
std::optional<DataType> singleDataType() const;
std::optional<PathSegment> singleSegment() const final;
std::optional<PathDataLine> singleDataLine() const final;
std::optional<PathArc> singleArc() const final;
std::optional<PathDataQuadCurve> singleQuadCurve() const final;
std::optional<PathDataBezierCurve> singleBezierCurve() const final;
bool isEmpty() const final { return m_segmentsData->segments.isEmpty(); }
bool isClosed() const final;
FloatPoint currentPoint() const final;
Vector<PathSegment>& segments() { return m_segmentsData.access().segments; }
DataRef<SegmentsData> m_segmentsData;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::PathStream)
static bool isType(const WebCore::PathImpl& pathImpl) { return pathImpl.isPathStream(); }
SPECIALIZE_TYPE_TRAITS_END()
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