epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 2 | /* |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 3 | * Copyright 2006 The Android Open Source Project |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 4 | * |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 9 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 10 | #ifndef Sk2DPathEffect_DEFINED |
| 11 | #define Sk2DPathEffect_DEFINED |
| 12 | |
reed@google.com | 18dc477 | 2011-08-09 18:47:40 +0000 | [diff] [blame] | 13 | #include "SkPath.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 14 | #include "SkPathEffect.h" |
| 15 | #include "SkMatrix.h" |
| 16 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 17 | class Sk2DPathEffect : public SkPathEffect { |
| 18 | public: |
| 19 | Sk2DPathEffect(const SkMatrix& mat); |
| 20 | |
| 21 | // overrides |
mike@reedtribe.org | 259210c | 2011-11-23 02:08:50 +0000 | [diff] [blame] | 22 | virtual bool filterPath(SkPath*, const SkPath&, SkScalar* width) SK_OVERRIDE; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 23 | |
| 24 | // overrides from SkFlattenable |
mike@reedtribe.org | 259210c | 2011-11-23 02:08:50 +0000 | [diff] [blame] | 25 | virtual void flatten(SkFlattenableWriteBuffer&) SK_OVERRIDE; |
djsollen@google.com | ba28d03 | 2012-03-26 17:57:35 +0000 | [diff] [blame] | 26 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(Sk2DPathEffect) |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 27 | |
| 28 | protected: |
| 29 | /** New virtual, to be overridden by subclasses. |
| 30 | This is called once from filterPath, and provides the |
| 31 | uv parameter bounds for the path. Subsequent calls to |
| 32 | next() will receive u and v values within these bounds, |
| 33 | and then a call to end() will signal the end of processing. |
| 34 | */ |
| 35 | virtual void begin(const SkIRect& uvBounds, SkPath* dst); |
| 36 | virtual void next(const SkPoint& loc, int u, int v, SkPath* dst); |
| 37 | virtual void end(SkPath* dst); |
| 38 | |
| 39 | /** Low-level virtual called per span of locations in the u-direction. |
| 40 | The default implementation calls next() repeatedly with each |
| 41 | location. |
| 42 | */ |
| 43 | virtual void nextSpan(int u, int v, int ucount, SkPath* dst); |
| 44 | |
| 45 | const SkMatrix& getMatrix() const { return fMatrix; } |
| 46 | |
| 47 | // protected so that subclasses can call this during unflattening |
| 48 | Sk2DPathEffect(SkFlattenableReadBuffer&); |
| 49 | |
| 50 | private: |
| 51 | SkMatrix fMatrix, fInverse; |
| 52 | // illegal |
| 53 | Sk2DPathEffect(const Sk2DPathEffect&); |
| 54 | Sk2DPathEffect& operator=(const Sk2DPathEffect&); |
| 55 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 56 | friend class Sk2DPathEffectBlitter; |
| 57 | typedef SkPathEffect INHERITED; |
| 58 | }; |
| 59 | |
reed@google.com | 18dc477 | 2011-08-09 18:47:40 +0000 | [diff] [blame] | 60 | class SkPath2DPathEffect : public Sk2DPathEffect { |
| 61 | public: |
| 62 | /** |
| 63 | * Stamp the specified path to fill the shape, using the matrix to define |
| 64 | * the latice. |
| 65 | */ |
| 66 | SkPath2DPathEffect(const SkMatrix&, const SkPath&); |
| 67 | |
djsollen@google.com | ba28d03 | 2012-03-26 17:57:35 +0000 | [diff] [blame] | 68 | SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkPath2DPathEffect) |
reed@google.com | 18dc477 | 2011-08-09 18:47:40 +0000 | [diff] [blame] | 69 | |
| 70 | protected: |
| 71 | SkPath2DPathEffect(SkFlattenableReadBuffer& buffer); |
| 72 | |
mike@reedtribe.org | 259210c | 2011-11-23 02:08:50 +0000 | [diff] [blame] | 73 | virtual void flatten(SkFlattenableWriteBuffer&) SK_OVERRIDE; |
mike@reedtribe.org | 259210c | 2011-11-23 02:08:50 +0000 | [diff] [blame] | 74 | virtual void next(const SkPoint&, int u, int v, SkPath* dst) SK_OVERRIDE; |
reed@google.com | 18dc477 | 2011-08-09 18:47:40 +0000 | [diff] [blame] | 75 | |
| 76 | private: |
| 77 | SkPath fPath; |
| 78 | |
| 79 | typedef Sk2DPathEffect INHERITED; |
| 80 | }; |
| 81 | |
| 82 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 83 | #endif |