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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2012 Google Inc. | 3 * Copyright 2012 Google Inc. |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 #ifndef SkBBoxRecord_DEFINED | 9 #ifndef SkBBoxRecord_DEFINED |
10 #define SkBBoxRecord_DEFINED | 10 #define SkBBoxRecord_DEFINED |
11 | 11 |
12 #include "SkPictureRecord.h" | 12 #include "SkPictureRecord.h" |
13 #include "SkTDStack.h" | |
14 | 13 |
15 /** | 14 /** |
16 * This is an abstract SkPictureRecord subclass that intercepts draw calls and
computes an | 15 * This is an abstract SkPictureRecord subclass that intercepts draw calls and
computes an |
17 * axis-aligned bounding box for each draw that it sees, subclasses implement h
andleBBox() | 16 * axis-aligned bounding box for each draw that it sees, subclasses implement h
andleBBox() |
18 * which will be called every time we get a new bounding box. | 17 * which will be called every time we get a new bounding box. |
19 */ | 18 */ |
20 class SkBBoxRecord : public SkPictureRecord { | 19 class SkBBoxRecord : public SkPictureRecord { |
21 public: | 20 public: |
22 | 21 |
23 SkBBoxRecord(const SkISize& size, uint32_t recordFlags) | 22 SkBBoxRecord(const SkISize& size, uint32_t recordFlags) |
24 : INHERITED(size, recordFlags) { | 23 : INHERITED(size, recordFlags) { |
25 } | 24 } |
26 virtual ~SkBBoxRecord(); | 25 virtual ~SkBBoxRecord() { } |
27 | 26 |
28 /** | 27 /** |
29 * This is called each time we get a bounding box, it will be axis-aligned, | 28 * This is called each time we get a bounding box, it will be axis-aligned, |
30 * in device coordinates, and expanded to include stroking, shadows, etc. | 29 * in device coordinates, and expanded to include stroking, shadows, etc. |
31 */ | 30 */ |
32 virtual void handleBBox(const SkRect& bbox) = 0; | 31 virtual void handleBBox(const SkRect& bbox) = 0; |
33 | 32 |
34 virtual void drawOval(const SkRect& rect, const SkPaint& paint) SK_OVERRIDE; | 33 virtual void drawOval(const SkRect& rect, const SkPaint& paint) SK_OVERRIDE; |
35 virtual void drawRRect(const SkRRect& rrect, const SkPaint& paint) SK_OVERRI
DE; | 34 virtual void drawRRect(const SkRRect& rrect, const SkPaint& paint) SK_OVERRI
DE; |
36 virtual void drawRect(const SkRect& rect, const SkPaint& paint) SK_OVERRIDE; | 35 virtual void drawRect(const SkRect& rect, const SkPaint& paint) SK_OVERRIDE; |
(...skipping 23 matching lines...) Expand all Loading... |
60 virtual void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) SK
_OVERRIDE; | 59 virtual void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) SK
_OVERRIDE; |
61 virtual void onDrawText(const void* text, size_t byteLength, SkScalar x, SkS
calar y, | 60 virtual void onDrawText(const void* text, size_t byteLength, SkScalar x, SkS
calar y, |
62 const SkPaint&) SK_OVERRIDE; | 61 const SkPaint&) SK_OVERRIDE; |
63 virtual void onDrawPosText(const void* text, size_t byteLength, const SkPoin
t pos[], | 62 virtual void onDrawPosText(const void* text, size_t byteLength, const SkPoin
t pos[], |
64 const SkPaint&) SK_OVERRIDE; | 63 const SkPaint&) SK_OVERRIDE; |
65 virtual void onDrawPosTextH(const void* text, size_t byteLength, const SkSca
lar xpos[], | 64 virtual void onDrawPosTextH(const void* text, size_t byteLength, const SkSca
lar xpos[], |
66 SkScalar constY, const SkPaint&) SK_OVERRIDE; | 65 SkScalar constY, const SkPaint&) SK_OVERRIDE; |
67 virtual void onDrawTextOnPath(const void* text, size_t byteLength, const SkP
ath& path, | 66 virtual void onDrawTextOnPath(const void* text, size_t byteLength, const SkP
ath& path, |
68 const SkMatrix* matrix, const SkPaint&) SK_OVE
RRIDE; | 67 const SkMatrix* matrix, const SkPaint&) SK_OVE
RRIDE; |
69 virtual void onDrawPicture(const SkPicture* picture) SK_OVERRIDE; | 68 virtual void onDrawPicture(const SkPicture* picture) SK_OVERRIDE; |
70 virtual void willSave() SK_OVERRIDE; | |
71 virtual SaveLayerStrategy willSaveLayer(const SkRect*, const SkPaint*, SaveF
lags) SK_OVERRIDE; | |
72 virtual void willRestore() SK_OVERRIDE; | |
73 | 69 |
74 private: | 70 private: |
75 /** | 71 /** |
76 * Takes a bounding box in current canvas view space, accounts for stroking
and effects, and | 72 * Takes a bounding box in current canvas view space, accounts for stroking
and effects, and |
77 * computes an axis-aligned bounding box in device coordinates, then passes
it to handleBBox() | 73 * computes an axis-aligned bounding box in device coordinates, then passes
it to handleBBox() |
78 * returns false if the draw is completely clipped out, and may safely be ig
nored. | 74 * returns false if the draw is completely clipped out, and may safely be ig
nored. |
79 **/ | 75 **/ |
80 bool transformBounds(const SkRect& bounds, const SkPaint* paint); | 76 bool transformBounds(const SkRect& bounds, const SkPaint* paint); |
81 | 77 |
82 /** | |
83 * Paints from currently-active saveLayers that need to be applied to boundi
ng boxes of all | |
84 * primitives drawn inside them. We own these pointers. | |
85 **/ | |
86 SkTDStack<const SkPaint*> fSaveStack; | |
87 | |
88 typedef SkPictureRecord INHERITED; | 78 typedef SkPictureRecord INHERITED; |
89 }; | 79 }; |
90 | 80 |
91 #endif | 81 #endif |
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