1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/include/effects/Sk2DPathEffect.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,125 @@
1.4 +/*
1.5 + * Copyright 2006 The Android Open Source Project
1.6 + *
1.7 + * Use of this source code is governed by a BSD-style license that can be
1.8 + * found in the LICENSE file.
1.9 + */
1.10 +
1.11 +#ifndef Sk2DPathEffect_DEFINED
1.12 +#define Sk2DPathEffect_DEFINED
1.13 +
1.14 +#include "SkPath.h"
1.15 +#include "SkPathEffect.h"
1.16 +#include "SkMatrix.h"
1.17 +
1.18 +class SK_API Sk2DPathEffect : public SkPathEffect {
1.19 +public:
1.20 + static Sk2DPathEffect* Create(const SkMatrix& mat) {
1.21 + return SkNEW_ARGS(Sk2DPathEffect, (mat));
1.22 + }
1.23 +
1.24 + virtual bool filterPath(SkPath*, const SkPath&,
1.25 + SkStrokeRec*, const SkRect*) const SK_OVERRIDE;
1.26 +
1.27 + SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(Sk2DPathEffect)
1.28 +
1.29 +protected:
1.30 + /** New virtual, to be overridden by subclasses.
1.31 + This is called once from filterPath, and provides the
1.32 + uv parameter bounds for the path. Subsequent calls to
1.33 + next() will receive u and v values within these bounds,
1.34 + and then a call to end() will signal the end of processing.
1.35 + */
1.36 + virtual void begin(const SkIRect& uvBounds, SkPath* dst) const;
1.37 + virtual void next(const SkPoint& loc, int u, int v, SkPath* dst) const;
1.38 + virtual void end(SkPath* dst) const;
1.39 +
1.40 + /** Low-level virtual called per span of locations in the u-direction.
1.41 + The default implementation calls next() repeatedly with each
1.42 + location.
1.43 + */
1.44 + virtual void nextSpan(int u, int v, int ucount, SkPath* dst) const;
1.45 +
1.46 + const SkMatrix& getMatrix() const { return fMatrix; }
1.47 +
1.48 + // protected so that subclasses can call this during unflattening
1.49 + Sk2DPathEffect(SkReadBuffer&);
1.50 + virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
1.51 +
1.52 +#ifdef SK_SUPPORT_LEGACY_PUBLICEFFECTCONSTRUCTORS
1.53 +public:
1.54 +#endif
1.55 + Sk2DPathEffect(const SkMatrix& mat);
1.56 +
1.57 +private:
1.58 + SkMatrix fMatrix, fInverse;
1.59 + bool fMatrixIsInvertible;
1.60 +
1.61 + // illegal
1.62 + Sk2DPathEffect(const Sk2DPathEffect&);
1.63 + Sk2DPathEffect& operator=(const Sk2DPathEffect&);
1.64 +
1.65 + friend class Sk2DPathEffectBlitter;
1.66 + typedef SkPathEffect INHERITED;
1.67 +};
1.68 +
1.69 +class SK_API SkLine2DPathEffect : public Sk2DPathEffect {
1.70 +public:
1.71 + static SkLine2DPathEffect* Create(SkScalar width, const SkMatrix& matrix) {
1.72 + return SkNEW_ARGS(SkLine2DPathEffect, (width, matrix));
1.73 + }
1.74 +
1.75 + virtual bool filterPath(SkPath* dst, const SkPath& src,
1.76 + SkStrokeRec*, const SkRect*) const SK_OVERRIDE;
1.77 +
1.78 + SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkLine2DPathEffect)
1.79 +
1.80 +protected:
1.81 + virtual void nextSpan(int u, int v, int ucount, SkPath*) const SK_OVERRIDE;
1.82 +
1.83 + SkLine2DPathEffect(SkReadBuffer&);
1.84 +
1.85 + virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
1.86 +
1.87 +#ifdef SK_SUPPORT_LEGACY_PUBLICEFFECTCONSTRUCTORS
1.88 +public:
1.89 +#endif
1.90 + SkLine2DPathEffect(SkScalar width, const SkMatrix& matrix)
1.91 + : Sk2DPathEffect(matrix), fWidth(width) {}
1.92 +
1.93 +private:
1.94 + SkScalar fWidth;
1.95 +
1.96 + typedef Sk2DPathEffect INHERITED;
1.97 +};
1.98 +
1.99 +class SK_API SkPath2DPathEffect : public Sk2DPathEffect {
1.100 +public:
1.101 + /**
1.102 + * Stamp the specified path to fill the shape, using the matrix to define
1.103 + * the latice.
1.104 + */
1.105 + static SkPath2DPathEffect* Create(const SkMatrix& matrix, const SkPath& path) {
1.106 + return SkNEW_ARGS(SkPath2DPathEffect, (matrix, path));
1.107 + }
1.108 +
1.109 + SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkPath2DPathEffect)
1.110 +
1.111 +protected:
1.112 + SkPath2DPathEffect(SkReadBuffer& buffer);
1.113 + virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
1.114 +
1.115 + virtual void next(const SkPoint&, int u, int v, SkPath*) const SK_OVERRIDE;
1.116 +
1.117 +#ifdef SK_SUPPORT_LEGACY_PUBLICEFFECTCONSTRUCTORS
1.118 +public:
1.119 +#endif
1.120 + SkPath2DPathEffect(const SkMatrix&, const SkPath&);
1.121 +
1.122 +private:
1.123 + SkPath fPath;
1.124 +
1.125 + typedef Sk2DPathEffect INHERITED;
1.126 +};
1.127 +
1.128 +#endif
