1 /* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.keyguard.clock; 18 19 import android.content.res.Resources; 20 import android.util.MathUtils; 21 22 import com.android.internal.annotations.VisibleForTesting; 23 24 /** 25 * Computes preferred position of clock by considering height of status bar and lock icon. 26 */ 27 class SmallClockPosition { 28 29 /** 30 * Dimensions used to determine preferred clock position. 31 */ 32 private final int mStatusBarHeight; 33 private final int mKeyguardLockPadding; 34 private final int mKeyguardLockHeight; 35 private final int mBurnInOffsetY; 36 37 /** 38 * Amount of transition between AOD and lock screen. 39 */ 40 private float mDarkAmount; 41 42 SmallClockPosition(Resources res) { 43 this(res.getDimensionPixelSize(com.android.keyguard.R.dimen.status_bar_height), 44 res.getDimensionPixelSize(com.android.keyguard.R.dimen.keyguard_lock_padding), 45 res.getDimensionPixelSize(com.android.keyguard.R.dimen.keyguard_lock_height), 46 res.getDimensionPixelSize(com.android.keyguard.R.dimen.burn_in_prevention_offset_y) 47 ); 48 } 49 50 @VisibleForTesting 51 SmallClockPosition(int statusBarHeight, int lockPadding, int lockHeight, int burnInY) { 52 mStatusBarHeight = statusBarHeight; 53 mKeyguardLockPadding = lockPadding; 54 mKeyguardLockHeight = lockHeight; 55 mBurnInOffsetY = burnInY; 56 } 57 58 /** 59 * See {@link ClockPlugin#setDarkAmount}. 60 */ 61 void setDarkAmount(float darkAmount) { 62 mDarkAmount = darkAmount; 63 } 64 65 /** 66 * Gets the preferred Y position accounting for status bar and lock icon heights. 67 */ 68 int getPreferredY() { 69 // On AOD, clock needs to appear below the status bar with enough room for pixel shifting 70 int aodY = mStatusBarHeight + mKeyguardLockPadding + mBurnInOffsetY; 71 // On lock screen, clock needs to appear below the lock icon 72 int lockY = mStatusBarHeight + mKeyguardLockHeight + 2 * mKeyguardLockPadding; 73 return (int) MathUtils.lerp(lockY, aodY, mDarkAmount); 74 } 75 } 76
