1 /* 2 * Copyright (C) 2015 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.systemui.statusbar.stack; 18 19 /** 20 * A state of an expandable view 21 */ 22 public class StackViewState extends ViewState { 23 24 // These are flags such that we can create masks for filtering. 25 26 public static final int LOCATION_UNKNOWN = 0x00; 27 public static final int LOCATION_FIRST_HUN = 0x01; 28 public static final int LOCATION_HIDDEN_TOP = 0x02; 29 public static final int LOCATION_MAIN_AREA = 0x04; 30 public static final int LOCATION_BOTTOM_STACK_PEEKING = 0x08; 31 public static final int LOCATION_BOTTOM_STACK_HIDDEN = 0x10; 32 /** The view isn't layouted at all. */ 33 public static final int LOCATION_GONE = 0x40; 34 35 public int height; 36 public boolean dimmed; 37 public boolean dark; 38 public boolean hideSensitive; 39 public boolean belowSpeedBump; 40 public float shadowAlpha; 41 42 /** 43 * How much the child overlaps with the previous child on top. This is used to 44 * show the background properly when the child on top is translating away. 45 */ 46 public int clipTopAmount; 47 48 /** 49 * The index of the view, only accounting for views not equal to GONE 50 */ 51 public int notGoneIndex; 52 53 /** 54 * The location this view is currently rendered at. 55 * 56 * <p>See <code>LOCATION_</code> flags.</p> 57 */ 58 public int location; 59 60 /** 61 * Whether a child in a group is being clipped at the bottom. 62 */ 63 public boolean isBottomClipped; 64 65 @Override copyFrom(ViewState viewState)66 public void copyFrom(ViewState viewState) { 67 super.copyFrom(viewState); 68 if (viewState instanceof StackViewState) { 69 StackViewState svs = (StackViewState) viewState; 70 height = svs.height; 71 dimmed = svs.dimmed; 72 shadowAlpha = svs.shadowAlpha; 73 dark = svs.dark; 74 hideSensitive = svs.hideSensitive; 75 belowSpeedBump = svs.belowSpeedBump; 76 clipTopAmount = svs.clipTopAmount; 77 notGoneIndex = svs.notGoneIndex; 78 location = svs.location; 79 isBottomClipped = svs.isBottomClipped; 80 } 81 } 82 } 83