content: /*
   * Copyright (C) 2016 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License
   */
  
  package com.android.server.wm.animation;
  
  import android.animation.KeyframeSet;
  import android.animation.PathKeyframes;
  import android.graphics.Path;
  import android.graphics.PointF;
  import android.view.animation.Animation;
  import android.view.animation.Transformation;
  
  /**
   * Translate animation which follows a curved path.
   */
  public class CurvedTranslateAnimation extends Animation {
  
      private final PathKeyframes mKeyframes;
  
      public CurvedTranslateAnimation(Path path) {
          mKeyframes = KeyframeSet.ofPath(path);
      }
  
      @Override
      protected void applyTransformation(float interpolatedTime, Transformation t) {
          PointF location = (PointF) mKeyframes.getValue(interpolatedTime);
          t.getMatrix().setTranslate(location.x, location.y);
      }
  }
  