1 /* 2 * Copyright (c) 2022-2022 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 ROSEN_ENGINE_CORE_ANIMATION_RS_STEPS_INTERPOLATOR_H 17 #define ROSEN_ENGINE_CORE_ANIMATION_RS_STEPS_INTERPOLATOR_H 18 19 #include "animation/rs_interpolator.h" 20 #include "common/rs_macros.h" 21 22 namespace OHOS { 23 namespace Rosen { 24 enum class StepsCurvePosition { 25 START, 26 END, 27 }; 28 29 class RSB_EXPORT RSStepsInterpolator : public RSInterpolator { 30 public: 31 explicit RSStepsInterpolator(int32_t steps, StepsCurvePosition position = StepsCurvePosition::START); 32 ~RSStepsInterpolator()33 ~RSStepsInterpolator() override {}; 34 35 float Interpolate(float fraction) const override; 36 bool Marshalling(Parcel& parcel) const override; 37 static RSStepsInterpolator* Unmarshalling(Parcel& parcel); 38 private: 39 int32_t steps_; 40 const StepsCurvePosition position_; 41 float fractionMin = 0.0f; 42 float fractionMax = 1.0f; 43 }; 44 } // namespace Rosen 45 } // namespace OHOS 46 47 #endif // ROSEN_ENGINE_CORE_ANIMATION_RS_STEPS_INTERPOLATOR_H 48