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1 /* | |
2 * Copyright 2010 Google Inc. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license that can be | |
5 * found in the LICENSE file. | |
6 */ | |
7 | |
8 #ifndef GrClip_DEFINED | |
9 #define GrClip_DEFINED | |
10 | |
11 #include "SkClipStack.h" | |
12 #include "GrSurface.h" | |
13 | |
14 struct SkIRect; | |
15 | |
16 /** | |
17 * GrClipData encapsulates the information required to construct the clip | |
18 * masks. 'fOrigin' is only non-zero when saveLayer has been called | |
19 * with an offset bounding box. The clips in 'fClipStack' are in | |
20 * device coordinates (i.e., they have been translated by -fOrigin w.r.t. | |
21 * the canvas' device coordinates). | |
22 */ | |
23 class GrClipData : SkNoncopyable { | |
24 public: | |
25 SkAutoTUnref<const SkClipStack> fClipStack; | |
26 SkIPoint fOrigin; | |
27 | |
28 GrClipData() | |
29 : fClipStack(NULL) { | |
30 fOrigin.setZero(); | |
31 } | |
32 | |
33 bool operator==(const GrClipData& other) const { | |
34 if (fOrigin != other.fOrigin) { | |
35 return false; | |
36 } | |
37 | |
38 if (fClipStack && other.fClipStack) { | |
39 return *fClipStack == *other.fClipStack; | |
40 } | |
41 | |
42 return fClipStack == other.fClipStack; | |
43 } | |
44 | |
45 bool operator!=(const GrClipData& other) const { | |
46 return !(*this == other); | |
47 } | |
48 | |
49 void getConservativeBounds(const GrSurface* surface, | |
50 SkIRect* devResult, | |
51 bool* isIntersectionOfRects = NULL) const { | |
52 this->getConservativeBounds(surface->width(), surface->height(), | |
53 devResult, isIntersectionOfRects); | |
54 } | |
55 | |
56 void getConservativeBounds(int width, int height, | |
57 SkIRect* devResult, | |
58 bool* isIntersectionOfRects = NULL) const; | |
59 }; | |
60 | |
61 #endif | |
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