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.launcher3.anim;
  
  public class CircleRevealOutlineProvider extends RevealOutlineAnimation {
  
      private int mCenterX;
      private int mCenterY;
      private float mRadius0;
      private float mRadius1;
  
      /**
       * @param x reveal center x
       * @param y reveal center y
       * @param r0 initial radius
       * @param r1 final radius
       */
      public CircleRevealOutlineProvider(int x, int y, float r0, float r1) {
          mCenterX = x;
          mCenterY = y;
          mRadius0 = r0;
          mRadius1 = r1;
      }
  
      @Override
      public boolean shouldRemoveElevationDuringAnimation() {
          return true;
      }
  
      @Override
      public void setProgress(float progress) {
          mOutlineRadius = (1 - progress) * mRadius0 + progress * mRadius1;
  
          mOutline.left = (int) (mCenterX - mOutlineRadius);
          mOutline.top = (int) (mCenterY - mOutlineRadius);
          mOutline.right = (int) (mCenterX + mOutlineRadius);
          mOutline.bottom = (int) (mCenterY + mOutlineRadius);
      }
  }
  