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/*
* Copyright (C) 2017 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;
import android.graphics.Rect;
/**
* A {@link RevealOutlineAnimation} that provides an outline that interpolates between two radii
* and two {@link Rect}s.
*
* An example usage of this provider is an outline that starts out as a circle and ends
* as a rounded rectangle.
*/
public class RoundedRectRevealOutlineProvider extends RevealOutlineAnimation {
private final float mStartRadius;
private final float mEndRadius;
private final Rect mStartRect;
private final Rect mEndRect;
public RoundedRectRevealOutlineProvider(float startRadius, float endRadius, Rect startRect,
Rect endRect) {
mStartRadius = startRadius;
mEndRadius = endRadius;
mStartRect = startRect;
mEndRect = endRect;
}
@Override
public boolean shouldRemoveElevationDuringAnimation() {
return true;
}
@Override
public void setProgress(float progress) {
mOutlineRadius = (1 - progress) * mStartRadius + progress * mEndRadius;
mOutline.left = (int) ((1 - progress) * mStartRect.left + progress * mEndRect.left);
mOutline.top = (int) ((1 - progress) * mStartRect.top + progress * mEndRect.top);
mOutline.right = (int) ((1 - progress) * mStartRect.right + progress * mEndRect.right);
mOutline.bottom = (int) ((1 - progress) * mStartRect.bottom + progress * mEndRect.bottom);
}
}
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