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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "2D.h"
#include <vector>
namespace mozilla {
namespace gfx {
struct FlatPathOp
{
enum OpType {
OP_MOVETO,
OP_LINETO,
};
OpType mType;
Point mPoint;
};
class FlattenedPath : public PathSink
{
public:
MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(FlattenedPath)
FlattenedPath() : mCachedLength(0)
, mCalculatedLength(false)
{
}
virtual void MoveTo(const Point &aPoint);
virtual void LineTo(const Point &aPoint);
virtual void BezierTo(const Point &aCP1,
const Point &aCP2,
const Point &aCP3);
virtual void QuadraticBezierTo(const Point &aCP1,
const Point &aCP2);
virtual void Close();
virtual void Arc(const Point &aOrigin, float aRadius, float aStartAngle,
float aEndAngle, bool aAntiClockwise = false);
virtual Point CurrentPoint() const { return mPathOps.empty() ? Point() : mPathOps[mPathOps.size() - 1].mPoint; }
Float ComputeLength();
Point ComputePointAtLength(Float aLength, Point *aTangent);
private:
Float mCachedLength;
bool mCalculatedLength;
Point mLastMove;
std::vector<FlatPathOp> mPathOps;
};
} // namespace gfx
} // namespace mozilla
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