1 /*
2  * Copyright (c) 2021 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 FOUNDATION_ACE_FRAMEWORKS_CORE_ANIMATION_ANTICIPATE_CURVE_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_ANIMATION_ANTICIPATE_CURVE_H
18 
19 #include "core/animation/curve.h"
20 
21 namespace OHOS::Ace {
22 
23 class AnticipateCurve : public Curve {
24     DECLARE_ACE_TYPE(AnticipateCurve, Curve);
25 
26 public:
27     explicit AnticipateCurve(float tension);
28     ~AnticipateCurve() override = default;
29 
30     float MoveInternal(float time) override;
31 
32 private:
33     // Default amount of anticipation. When tension equals 0.0f, there is no anticipation and the interpolator
34     // becomes a simple acceleration interpolator.
35     const float tension_;
36 };
37 
38 } // namespace OHOS::Ace
39 
40 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_ANIMATION_ANTICIPATE_CURVE_H
41