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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef PropertyTreeState_h | 5 #ifndef PropertyTreeState_h |
6 #define PropertyTreeState_h | 6 #define PropertyTreeState_h |
7 | 7 |
8 #include "wtf/HashFunctions.h" | 8 #include "wtf/HashFunctions.h" |
9 #include "wtf/HashTraits.h" | 9 #include "wtf/HashTraits.h" |
10 | 10 |
11 namespace blink { | 11 namespace blink { |
12 | 12 |
13 class TransformPaintPropertyNode; | 13 class TransformPaintPropertyNode; |
14 class ClipPaintPropertyNode; | 14 class ClipPaintPropertyNode; |
15 class EffectPaintPropertyNode; | 15 class EffectPaintPropertyNode; |
16 | 16 |
17 // Represents the combination of transform, clip and effect nodes for a particul
ar coordinate space. | 17 // Represents the combination of transform, clip and effect nodes for a particul
ar coordinate space. |
18 // See GeometryMapper. | 18 // See GeometryMapper. |
19 struct PropertyTreeState { | 19 struct PropertyTreeState { |
20 PropertyTreeState() : PropertyTreeState(nullptr, nullptr, nullptr) {} | 20 PropertyTreeState() : PropertyTreeState(nullptr, nullptr, nullptr) {} |
21 | 21 |
22 PropertyTreeState( | 22 PropertyTreeState( |
23 TransformPaintPropertyNode* transform, | 23 const TransformPaintPropertyNode* transform, |
24 ClipPaintPropertyNode* clip, | 24 const ClipPaintPropertyNode* clip, |
25 EffectPaintPropertyNode* effect) | 25 const EffectPaintPropertyNode* effect) |
26 : transform(transform), clip(clip), effect(effect) {} | 26 : transform(transform), clip(clip), effect(effect) {} |
27 | 27 |
28 RefPtr<TransformPaintPropertyNode> transform; | 28 RefPtr<const TransformPaintPropertyNode> transform; |
29 RefPtr<ClipPaintPropertyNode> clip; | 29 RefPtr<const ClipPaintPropertyNode> clip; |
30 RefPtr<EffectPaintPropertyNode> effect; | 30 RefPtr<const EffectPaintPropertyNode> effect; |
31 }; | 31 }; |
32 | 32 |
33 template <class A> | 33 template <class A> |
34 unsigned propertyTreeNodeDepth(const A* node) | 34 unsigned propertyTreeNodeDepth(const A* node) |
35 { | 35 { |
36 unsigned depth = 0; | 36 unsigned depth = 0; |
37 while (node) { | 37 while (node) { |
38 depth++; | 38 depth++; |
39 node = node->parent(); | 39 node = node->parent(); |
40 } | 40 } |
(...skipping 23 matching lines...) Expand all Loading... |
64 while (a != b) { | 64 while (a != b) { |
65 a = a->parent(); | 65 a = a->parent(); |
66 b = b->parent(); | 66 b = b->parent(); |
67 } | 67 } |
68 return a; | 68 return a; |
69 } | 69 } |
70 | 70 |
71 } // namespace blink | 71 } // namespace blink |
72 | 72 |
73 #endif // PropertyTreeState_h | 73 #endif // PropertyTreeState_h |
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