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/*
* 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.util;
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);
}
}
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