| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CC_ANIMATION_LAYER_TREE_MUTATION_H_ |
| #define CC_ANIMATION_LAYER_TREE_MUTATION_H_ |
| |
| #include "base/containers/hash_tables.h" |
| #include "cc/animation/mutable_properties.h" |
| #include "third_party/skia/include/utils/SkMatrix44.h" |
| |
| namespace cc { |
| |
| class LayerTreeMutation { |
| public: |
| void SetOpacity(float opacity) { |
| mutated_flags_ |= kMutablePropertyOpacity; |
| opacity_ = opacity; |
| } |
| void SetScrollLeft(float scroll_left) { |
| mutated_flags_ |= kMutablePropertyScrollLeft; |
| scroll_left_ = scroll_left; |
| } |
| void SetScrollTop(float scroll_top) { |
| mutated_flags_ |= kMutablePropertyScrollTop; |
| scroll_top_ = scroll_top; |
| } |
| void SetTransform(const SkMatrix44& transform) { |
| mutated_flags_ |= kMutablePropertyTransform; |
| transform_ = transform; |
| } |
| |
| bool is_opacity_mutated() const { |
| return !!(mutated_flags_ & kMutablePropertyOpacity); |
| } |
| bool is_scroll_left_mutated() const { |
| return !!(mutated_flags_ & kMutablePropertyScrollLeft); |
| } |
| bool is_scroll_top_mutated() const { |
| return !!(mutated_flags_ & kMutablePropertyScrollTop); |
| } |
| bool is_transform_mutated() const { |
| return !!(mutated_flags_ & kMutablePropertyTransform); |
| } |
| |
| float opacity() const { return opacity_; } |
| float scroll_left() const { return scroll_left_; } |
| float scroll_top() const { return scroll_top_; } |
| SkMatrix44 transform() const { return transform_; } |
| |
| private: |
| uint32_t mutated_flags_ = 0; |
| float opacity_ = 0; |
| float scroll_left_ = 0; |
| float scroll_top_ = 0; |
| SkMatrix44 transform_; |
| }; |
| |
| typedef base::hash_map<uint64_t, LayerTreeMutation> LayerTreeMutationMap; |
| |
| } // namespace cc |
| |
| #endif // CC_ANIMATION_LAYER_TREE_MUTATION_H_ |