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1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CC_ANIMATION_LAYER_TREE_MUTATION_H_ | |
6 #define CC_ANIMATION_LAYER_TREE_MUTATION_H_ | |
7 | |
8 #include "base/containers/hash_tables.h" | |
9 #include "cc/animation/mutable_properties.h" | |
10 #include "third_party/skia/include/utils/SkMatrix44.h" | |
11 | |
12 namespace cc { | |
13 | |
14 struct LayerTreeMutation { | |
esprehn
2016/01/06 19:48:37
class ? You have public: and all the state is priv
Ian Vollick
2016/01/08 03:01:53
Done.
| |
15 public: | |
16 void SetOpacity(float opacity) { | |
17 mutated_flags_ |= kMutablePropertyOpacity; | |
18 opacity_ = opacity; | |
19 } | |
20 void SetScrollLeft(float scroll_left) { | |
21 mutated_flags_ |= kMutablePropertyScrollLeft; | |
22 scroll_left_ = scroll_left; | |
23 } | |
24 void SetScrollTop(float scroll_top) { | |
25 mutated_flags_ |= kMutablePropertyScrollTop; | |
26 scroll_top_ = scroll_top; | |
27 } | |
28 void SetTransform(const SkMatrix44& transform) { | |
29 mutated_flags_ |= kMutablePropertyTransform; | |
30 transform_ = transform; | |
31 } | |
32 | |
33 bool is_opacity_mutated() const { | |
34 return !!(mutated_flags_ & kMutablePropertyOpacity); | |
35 } | |
36 bool is_scroll_left_mutated() const { | |
37 return !!(mutated_flags_ & kMutablePropertyScrollLeft); | |
38 } | |
39 bool is_scroll_top_mutated() const { | |
40 return !!(mutated_flags_ & kMutablePropertyScrollTop); | |
41 } | |
42 bool is_transform_mutated() const { | |
43 return !!(mutated_flags_ & kMutablePropertyTransform); | |
44 } | |
45 | |
46 float opacity() const { return opacity_; } | |
47 float scroll_left() const { return scroll_left_; } | |
48 float scroll_top() const { return scroll_top_; } | |
49 SkMatrix44 transform() const { return transform_; } | |
50 | |
51 private: | |
52 uint32_t mutated_flags_ = 0; | |
53 float opacity_ = 0; | |
54 float scroll_left_ = 0; | |
55 float scroll_top_ = 0; | |
56 SkMatrix44 transform_; | |
57 }; | |
58 | |
59 typedef base::hash_map<uint64_t, LayerTreeMutation> LayerTreeMutationMap; | |
esprehn
2016/01/06 19:48:37
note that LayerTreeMutation objects are pretty big
Ian Vollick
2016/01/08 03:01:53
That's true. You could have one of these for every
| |
60 | |
61 } // namespace cc | |
62 | |
63 #endif // CC_ANIMATION_LAYER_TREE_MUTATION_H_ | |
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