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comparison: gfx/2d/PathAnalysis.h
gfx/2d/PathAnalysis.h
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:3e6e236fda44 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "2D.h" | |
| 7 #include <vector> | |
| 8 | |
| 9 namespace mozilla { | |
| 10 namespace gfx { | |
| 11 | |
| 12 struct FlatPathOp | |
| 13 { | |
| 14 enum OpType { | |
| 15 OP_MOVETO, | |
| 16 OP_LINETO, | |
| 17 }; | |
| 18 | |
| 19 OpType mType; | |
| 20 Point mPoint; | |
| 21 }; | |
| 22 | |
| 23 class FlattenedPath : public PathSink | |
| 24 { | |
| 25 public: | |
| 26 MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(FlattenedPath) | |
| 27 FlattenedPath() : mCachedLength(0) | |
| 28 , mCalculatedLength(false) | |
| 29 { | |
| 30 } | |
| 31 | |
| 32 virtual void MoveTo(const Point &aPoint); | |
| 33 virtual void LineTo(const Point &aPoint); | |
| 34 virtual void BezierTo(const Point &aCP1, | |
| 35 const Point &aCP2, | |
| 36 const Point &aCP3); | |
| 37 virtual void QuadraticBezierTo(const Point &aCP1, | |
| 38 const Point &aCP2); | |
| 39 virtual void Close(); | |
| 40 virtual void Arc(const Point &aOrigin, float aRadius, float aStartAngle, | |
| 41 float aEndAngle, bool aAntiClockwise = false); | |
| 42 | |
| 43 virtual Point CurrentPoint() const { return mPathOps.empty() ? Point() : mPathOps[mPathOps.size() - 1].mPoint; } | |
| 44 | |
| 45 Float ComputeLength(); | |
| 46 Point ComputePointAtLength(Float aLength, Point *aTangent); | |
| 47 | |
| 48 private: | |
| 49 Float mCachedLength; | |
| 50 bool mCalculatedLength; | |
| 51 Point mLastMove; | |
| 52 | |
| 53 std::vector<FlatPathOp> mPathOps; | |
| 54 }; | |
| 55 | |
| 56 } | |
| 57 } |
