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 SkLayerRasterizer_DEFINED |
| 11 | #define SkLayerRasterizer_DEFINED |
| 12 | |
| 13 | #include "SkRasterizer.h" |
| 14 | #include "SkDeque.h" |
| 15 | #include "SkScalar.h" |
| 16 | |
| 17 | class SkPaint; |
| 18 | |
| 19 | class SkLayerRasterizer : public SkRasterizer { |
| 20 | public: |
| 21 | SkLayerRasterizer(); |
| 22 | virtual ~SkLayerRasterizer(); |
| 23 | |
mike@reedtribe.org | 6b919c3 | 2011-04-20 11:17:30 +0000 | [diff] [blame] | 24 | void addLayer(const SkPaint& paint) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 25 | this->addLayer(paint, 0, 0); |
| 26 | } |
| 27 | |
| 28 | /** Add a new layer (above any previous layers) to the rasterizer. |
| 29 | The layer will extract those fields that affect the mask from |
| 30 | the specified paint, but will not retain a reference to the paint |
| 31 | object itself, so it may be reused without danger of side-effects. |
| 32 | */ |
| 33 | void addLayer(const SkPaint& paint, SkScalar dx, SkScalar dy); |
| 34 | |
| 35 | // overrides from SkFlattenable |
| 36 | virtual Factory getFactory(); |
| 37 | virtual void flatten(SkFlattenableWriteBuffer&); |
| 38 | |
reed@google.com | 43e9f20 | 2011-08-09 19:01:50 +0000 | [diff] [blame] | 39 | static SkFlattenable* CreateProc(SkFlattenableReadBuffer&); |
| 40 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 41 | protected: |
| 42 | SkLayerRasterizer(SkFlattenableReadBuffer&); |
| 43 | |
| 44 | // override from SkRasterizer |
| 45 | virtual bool onRasterize(const SkPath& path, const SkMatrix& matrix, |
| 46 | const SkIRect* clipBounds, |
| 47 | SkMask* mask, SkMask::CreateMode mode); |
| 48 | |
| 49 | private: |
| 50 | SkDeque fLayers; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 51 | |
| 52 | typedef SkRasterizer INHERITED; |
| 53 | }; |
| 54 | |
| 55 | #endif |