diff options
Diffstat (limited to 'src/com/android/launcher3/anim/CircleRevealOutlineProvider.java')
-rw-r--r-- | src/com/android/launcher3/anim/CircleRevealOutlineProvider.java | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/com/android/launcher3/anim/CircleRevealOutlineProvider.java b/src/com/android/launcher3/anim/CircleRevealOutlineProvider.java new file mode 100644 index 000000000..9fb6b498b --- /dev/null +++ b/src/com/android/launcher3/anim/CircleRevealOutlineProvider.java @@ -0,0 +1,53 @@ +/* + * 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); + } +} |