diff options
Diffstat (limited to 'src/com/android/launcher3/anim/RoundedRectRevealOutlineProvider.java')
-rw-r--r-- | src/com/android/launcher3/anim/RoundedRectRevealOutlineProvider.java | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/src/com/android/launcher3/anim/RoundedRectRevealOutlineProvider.java b/src/com/android/launcher3/anim/RoundedRectRevealOutlineProvider.java new file mode 100644 index 000000000..a0d1f8b65 --- /dev/null +++ b/src/com/android/launcher3/anim/RoundedRectRevealOutlineProvider.java @@ -0,0 +1,57 @@ +/* + * 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); + } +} |