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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 SkRTree_DEFINED | 9 #ifndef SkRTree_DEFINED |
10 #define SkRTree_DEFINED | 10 #define SkRTree_DEFINED |
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60 virtual ~SkRTree(); | 60 virtual ~SkRTree(); |
61 | 61 |
62 /** | 62 /** |
63 * Insert a node, consisting of bounds and a data value into the tree, if we
don't immediately | 63 * Insert a node, consisting of bounds and a data value into the tree, if we
don't immediately |
64 * need to use the tree; we may allow the insert to be deferred (this can al
low us to bulk-load | 64 * need to use the tree; we may allow the insert to be deferred (this can al
low us to bulk-load |
65 * a large batch of nodes at once, which tends to be faster and produce a be
tter tree). | 65 * a large batch of nodes at once, which tends to be faster and produce a be
tter tree). |
66 * @param data The data value | 66 * @param data The data value |
67 * @param bounds The corresponding bounding box | 67 * @param bounds The corresponding bounding box |
68 * @param defer Can this insert be deferred? (this may be ignored) | 68 * @param defer Can this insert be deferred? (this may be ignored) |
69 */ | 69 */ |
70 virtual void insert(void* data, const SkIRect& bounds, bool defer = false); | 70 virtual void insert(void* data, const SkIRect& bounds, bool defer = false) S
K_OVERRIDE; |
71 | 71 |
72 /** | 72 /** |
73 * If any inserts have been deferred, this will add them into the tree | 73 * If any inserts have been deferred, this will add them into the tree |
74 */ | 74 */ |
75 virtual void flushDeferredInserts(); | 75 virtual void flushDeferredInserts() SK_OVERRIDE; |
76 | 76 |
77 /** | 77 /** |
78 * Given a query rectangle, populates the passed-in array with the elements
it intersects | 78 * Given a query rectangle, populates the passed-in array with the elements
it intersects |
79 */ | 79 */ |
80 virtual void search(const SkIRect& query, SkTDArray<void*>* results); | 80 virtual void search(const SkIRect& query, SkTDArray<void*>* results) SK_OVER
RIDE; |
81 | 81 |
82 virtual void clear(); | 82 virtual void clear() SK_OVERRIDE; |
83 bool isEmpty() const { return 0 == fCount; } | 83 bool isEmpty() const { return 0 == fCount; } |
84 int getDepth() const { return this->isEmpty() ? 0 : fRoot.fChild.subtree->fL
evel + 1; } | 84 |
| 85 /** |
| 86 * Gets the depth of the tree structure |
| 87 */ |
| 88 virtual int getDepth() const SK_OVERRIDE { |
| 89 return this->isEmpty() ? 0 : fRoot.fChild.subtree->fLevel + 1; |
| 90 } |
85 | 91 |
86 /** | 92 /** |
87 * This gets the insertion count (rather than the node count) | 93 * This gets the insertion count (rather than the node count) |
88 */ | 94 */ |
89 virtual int getCount() const { return fCount; } | 95 virtual int getCount() const SK_OVERRIDE { return fCount; } |
90 | 96 |
91 virtual void rewindInserts() SK_OVERRIDE; | 97 virtual void rewindInserts() SK_OVERRIDE; |
92 | 98 |
93 private: | 99 private: |
94 | 100 |
95 struct Node; | 101 struct Node; |
96 | 102 |
97 /** | 103 /** |
98 * A branch of the tree, this may contain a pointer to another interior node
, or a data value | 104 * A branch of the tree, this may contain a pointer to another interior node
, or a data value |
99 */ | 105 */ |
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186 SkTDArray<Branch> fDeferredInserts; | 192 SkTDArray<Branch> fDeferredInserts; |
187 SkScalar fAspectRatio; | 193 SkScalar fAspectRatio; |
188 bool fSortWhenBulkLoading; | 194 bool fSortWhenBulkLoading; |
189 | 195 |
190 Node* allocateNode(uint16_t level); | 196 Node* allocateNode(uint16_t level); |
191 | 197 |
192 typedef SkBBoxHierarchy INHERITED; | 198 typedef SkBBoxHierarchy INHERITED; |
193 }; | 199 }; |
194 | 200 |
195 #endif | 201 #endif |
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