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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 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 SkBBoxHierarchy_DEFINED | 8 #ifndef SkBBoxHierarchy_DEFINED |
9 #define SkBBoxHierarchy_DEFINED | 9 #define SkBBoxHierarchy_DEFINED |
10 | 10 |
11 #include "SkRect.h" | 11 #include "SkRect.h" |
12 #include "SkRefCnt.h" | 12 #include "SkRefCnt.h" |
13 #include "SkTDArray.h" | 13 #include "SkTDArray.h" |
14 #include "SkTemplates.h" | |
15 | 14 |
16 /** | 15 /** |
17 * Interface for a spatial data structure that stores axis-aligned bounding | 16 * Interface for a spatial data structure that stores axis-aligned bounding |
18 * boxes and allows efficient retrieval of intersections with query rectangles. | 17 * boxes and allows efficient retrieval of intersections with query rectangles. |
19 */ | 18 */ |
20 class SkBBoxHierarchy : public SkRefCnt { | 19 class SkBBoxHierarchy : public SkRefCnt { |
21 public: | 20 public: |
22 SkBBoxHierarchy() {} | 21 SkBBoxHierarchy() {} |
23 virtual ~SkBBoxHierarchy() {} | 22 virtual ~SkBBoxHierarchy() {} |
24 | 23 |
25 /** | 24 /** |
26 * Insert N bounding boxes into the hierarchy. | 25 * Insert N bounding boxes into the hierarchy. |
27 */ | 26 */ |
28 virtual void insert(const SkRect[], int N) = 0; | 27 virtual void insert(const SkRect[], int N) = 0; |
29 | 28 |
30 /** | 29 /** |
31 * Populate results with the indices of bounding boxes interesecting that qu
ery. | 30 * Populate results with the indices of bounding boxes interesecting that qu
ery. |
32 */ | 31 */ |
33 virtual void search(const SkRect& query, SkTDArray<int>* results) const = 0; | 32 virtual void search(const SkRect& query, SkTDArray<int>* results) const = 0; |
34 | 33 |
35 virtual size_t bytesUsed() const = 0; | 34 virtual size_t bytesUsed() const = 0; |
36 | 35 |
37 // Get the root bound. | 36 // Get the root bound. |
38 virtual SkRect getRootBound() const = 0; | 37 virtual SkRect getRootBound() const = 0; |
39 | 38 |
40 | |
41 private: | 39 private: |
42 typedef SkRefCnt INHERITED; | 40 typedef SkRefCnt INHERITED; |
43 }; | 41 }; |
44 | 42 |
45 #endif | 43 #endif |
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