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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SkNulCanvas_DEFINED | 8 #ifndef SkNulCanvas_DEFINED |
9 #define SkNulCanvas_DEFINED | 9 #define SkNulCanvas_DEFINED |
10 | 10 |
11 #include "SkCanvas.h" | 11 #include "SkCanvas.h" |
12 | 12 |
| 13 /** \class SkNulCanvas |
| 14 * |
| 15 * Nul Canvas is a canvas that does nothing. It is used to measure the perf of
just parsing |
| 16 * a pdf, without actually rendering anything. |
| 17 * |
| 18 */ |
13 class SK_API SkNulCanvas : public SkCanvas { | 19 class SK_API SkNulCanvas : public SkCanvas { |
14 public: | 20 public: |
15 SK_DECLARE_INST_COUNT(SkNulCanvas); | 21 SK_DECLARE_INST_COUNT(SkNulCanvas); |
16 | 22 |
17 SkNulCanvas() {} | 23 SkNulCanvas() {} |
18 explicit SkNulCanvas(SkBaseDevice* device) : SkCanvas(device) {} | 24 explicit SkNulCanvas(SkBaseDevice* device) : SkCanvas(device) {} |
19 | 25 |
20 explicit SkNulCanvas(const SkBitmap& bitmap) : SkCanvas(bitmap) {} | 26 explicit SkNulCanvas(const SkBitmap& bitmap) : SkCanvas(bitmap) {} |
21 virtual ~SkNulCanvas() {} | 27 virtual ~SkNulCanvas() {} |
22 | 28 |
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90 | 96 |
91 protected: | 97 protected: |
92 virtual SkCanvas* canvasForDrawIter() {return NULL;} | 98 virtual SkCanvas* canvasForDrawIter() {return NULL;} |
93 virtual SkBaseDevice* setDevice(SkBaseDevice* device) {return NULL;} | 99 virtual SkBaseDevice* setDevice(SkBaseDevice* device) {return NULL;} |
94 | 100 |
95 private: | 101 private: |
96 typedef SkCanvas INHERITED; | 102 typedef SkCanvas INHERITED; |
97 }; | 103 }; |
98 | 104 |
99 #endif // SkNulCanvas_DEFINED | 105 #endif // SkNulCanvas_DEFINED |
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