/* -*- 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