/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.launcher3.anim;
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import android.graphics.Rect;
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/**
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* A {@link RevealOutlineAnimation} that provides an outline that interpolates between two radii
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* and two {@link Rect}s.
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*
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* An example usage of this provider is an outline that starts out as a circle and ends
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* as a rounded rectangle.
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*/
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public class RoundedRectRevealOutlineProvider extends RevealOutlineAnimation {
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private final float mStartRadius;
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private final float mEndRadius;
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private final Rect mStartRect;
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private final Rect mEndRect;
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public RoundedRectRevealOutlineProvider(float startRadius, float endRadius, Rect startRect,
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Rect endRect) {
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mStartRadius = startRadius;
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mEndRadius = endRadius;
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mStartRect = startRect;
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mEndRect = endRect;
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}
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@Override
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public boolean shouldRemoveElevationDuringAnimation() {
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return false;
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}
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@Override
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public void setProgress(float progress) {
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mOutlineRadius = (1 - progress) * mStartRadius + progress * mEndRadius;
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mOutline.left = (int) ((1 - progress) * mStartRect.left + progress * mEndRect.left);
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mOutline.top = (int) ((1 - progress) * mStartRect.top + progress * mEndRect.top);
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mOutline.right = (int) ((1 - progress) * mStartRect.right + progress * mEndRect.right);
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mOutline.bottom = (int) ((1 - progress) * mStartRect.bottom + progress * mEndRect.bottom);
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}
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}
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