The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/2d/PathAnalysis.h	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,57 @@
     1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
     1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#include "2D.h"
    1.10 +#include <vector>
    1.11 +
    1.12 +namespace mozilla {
    1.13 +namespace gfx {
    1.14 +
    1.15 +struct FlatPathOp
    1.16 +{
    1.17 +  enum OpType {
    1.18 +    OP_MOVETO,
    1.19 +    OP_LINETO,
    1.20 +  };
    1.21 +
    1.22 +  OpType mType;
    1.23 +  Point mPoint;
    1.24 +};
    1.25 +
    1.26 +class FlattenedPath : public PathSink
    1.27 +{
    1.28 +public:
    1.29 +  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(FlattenedPath)
    1.30 +  FlattenedPath() : mCachedLength(0)
    1.31 +                  , mCalculatedLength(false)
    1.32 +  {
    1.33 +  }
    1.34 +
    1.35 +  virtual void MoveTo(const Point &aPoint);
    1.36 +  virtual void LineTo(const Point &aPoint);
    1.37 +  virtual void BezierTo(const Point &aCP1,
    1.38 +                        const Point &aCP2,
    1.39 +                        const Point &aCP3);
    1.40 +  virtual void QuadraticBezierTo(const Point &aCP1,
    1.41 +                                 const Point &aCP2);
    1.42 +  virtual void Close();
    1.43 +  virtual void Arc(const Point &aOrigin, float aRadius, float aStartAngle,
    1.44 +                   float aEndAngle, bool aAntiClockwise = false);
    1.45 +
    1.46 +  virtual Point CurrentPoint() const { return mPathOps.empty() ? Point() : mPathOps[mPathOps.size() - 1].mPoint; }
    1.47 +
    1.48 +  Float ComputeLength();
    1.49 +  Point ComputePointAtLength(Float aLength, Point *aTangent);
    1.50 +
    1.51 +private:
    1.52 +  Float mCachedLength;
    1.53 +  bool mCalculatedLength;
    1.54 +  Point mLastMove;
    1.55 +
    1.56 +  std::vector<FlatPathOp> mPathOps;
    1.57 +};
    1.58 +
    1.59 +}
    1.60 +}