1 /*
2  * Copyright (c) 2024 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef META_SRC_ANIMATION_KEYFRAME_ANIMATION_H
17 #define META_SRC_ANIMATION_KEYFRAME_ANIMATION_H
18 
19 #include "animation.h"
20 
21 META_BEGIN_NAMESPACE()
22 
23 namespace Internal {
24 
25 class KeyframeAnimation final : public PropertyAnimationFwd<KeyframeAnimation, META_NS::ClassId::KeyframeAnimation,
26                                     IKeyframeAnimation, IStartableAnimation> {
27     using Super = PropertyAnimationFwd<KeyframeAnimation, META_NS::ClassId::KeyframeAnimation, IKeyframeAnimation,
28         IStartableAnimation>;
29 
30 public:
31     KeyframeAnimation() = default;
32     ~KeyframeAnimation() override = default;
33 
34 protected: // IKeyframeAnimation
35     META_IMPLEMENT_INTERFACE_PROPERTY(IKeyframeAnimation, IAny::Ptr, From);
36     META_IMPLEMENT_INTERFACE_PROPERTY(IKeyframeAnimation, IAny::Ptr, To);
37 
38 protected: // IStartableAnimation
39     void Pause() override;
40     void Restart() override;
41     void Seek(float position) override;
42     void Start() override;
43     void Stop() override;
44     void Finish() override;
45 
46 public: // IModifier
47     EvaluationResult ProcessOnGet(IAny& value) override;
48 
49 protected: // IAnimationInternal
50     void OnAnimationStateChanged(const AnimationStateChangedInfo& info) override;
51 
52 private:
53     void Evaluate() override;
54     AnimationState::AnimationStateParams GetParams() override;
55     void OnPropertyChanged(const TargetProperty& property, const IStackProperty::Ptr& previous) override;
56     void Initialize();
57     IAny::Ptr currentValue_;
58 };
59 
60 } // namespace Internal
61 
62 META_END_NAMESPACE()
63 
64 #endif // META_SRC_KEYFRAME_ANIMATION_H
65