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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 SkPaintFilterCanvas_DEFINED | 8 #ifndef SkPaintFilterCanvas_DEFINED |
9 #define SkPaintFilterCanvas_DEFINED | 9 #define SkPaintFilterCanvas_DEFINED |
10 | 10 |
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51 * Called with the paint that will be used to draw the specified type. | 51 * Called with the paint that will be used to draw the specified type. |
52 * The implementation may modify the paint as they wish (using SkTCopyOnFir
stWrite::writable). | 52 * The implementation may modify the paint as they wish (using SkTCopyOnFir
stWrite::writable). |
53 * | 53 * |
54 * The result bool is used to determine whether the draw op is to be | 54 * The result bool is used to determine whether the draw op is to be |
55 * executed (true) or skipped (false). | 55 * executed (true) or skipped (false). |
56 * | 56 * |
57 * Note: The base implementation calls onFilter() for top-level/explicit pa
ints only. | 57 * Note: The base implementation calls onFilter() for top-level/explicit pa
ints only. |
58 * To also filter encapsulated paints (e.g. SkPicture, SkTextBlob), c
lients may need to | 58 * To also filter encapsulated paints (e.g. SkPicture, SkTextBlob), c
lients may need to |
59 * override the relevant methods (i.e. drawPicture, drawTextBlob). | 59 * override the relevant methods (i.e. drawPicture, drawTextBlob). |
60 */ | 60 */ |
61 virtual bool onFilter(SkTCopyOnFirstWrite<SkPaint>* paint, Type type) const
{ | 61 virtual bool onFilter(SkTCopyOnFirstWrite<SkPaint>* paint, Type type) const
= 0; |
62 if (*paint) { | |
63 this->onFilterPaint(paint->writable(), type); | |
64 } | |
65 return true; | |
66 } | |
67 | |
68 // DEPRECATED - do not use | |
69 virtual void onFilterPaint(SkPaint*, Type) const { } | |
70 | 62 |
71 void onDrawPaint(const SkPaint&) override; | 63 void onDrawPaint(const SkPaint&) override; |
72 void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPain
t&) override; | 64 void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPain
t&) override; |
73 void onDrawRect(const SkRect&, const SkPaint&) override; | 65 void onDrawRect(const SkRect&, const SkPaint&) override; |
74 void onDrawRRect(const SkRRect&, const SkPaint&) override; | 66 void onDrawRRect(const SkRRect&, const SkPaint&) override; |
75 void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override; | 67 void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override; |
76 void onDrawOval(const SkRect&, const SkPaint&) override; | 68 void onDrawOval(const SkRect&, const SkPaint&) override; |
77 void onDrawPath(const SkPath&, const SkPaint&) override; | 69 void onDrawPath(const SkPath&, const SkPaint&) override; |
78 void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, const SkPain
t*) override; | 70 void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, const SkPain
t*) override; |
79 void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst,
const SkPaint*, | 71 void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst,
const SkPaint*, |
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106 void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y, | 98 void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y, |
107 const SkPaint& paint) override; | 99 const SkPaint& paint) override; |
108 | 100 |
109 private: | 101 private: |
110 class AutoPaintFilter; | 102 class AutoPaintFilter; |
111 | 103 |
112 typedef SkNWayCanvas INHERITED; | 104 typedef SkNWayCanvas INHERITED; |
113 }; | 105 }; |
114 | 106 |
115 #endif | 107 #endif |
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