1 /* 2 * Copyright (C) 2011 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 android.view; 18 19 import android.content.res.CompatibilityInfo; 20 import android.content.res.Configuration; 21 22 import java.util.Objects; 23 24 /** @hide */ 25 public class DisplayAdjustments { 26 public static final boolean DEVELOPMENT_RESOURCES_DEPEND_ON_ACTIVITY_TOKEN = false; 27 28 public static final DisplayAdjustments DEFAULT_DISPLAY_ADJUSTMENTS = new DisplayAdjustments(); 29 30 private volatile CompatibilityInfo mCompatInfo = CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO; 31 private Configuration mConfiguration = Configuration.EMPTY; 32 DisplayAdjustments()33 public DisplayAdjustments() { 34 } 35 DisplayAdjustments(Configuration configuration)36 public DisplayAdjustments(Configuration configuration) { 37 mConfiguration = configuration; 38 } 39 DisplayAdjustments(DisplayAdjustments daj)40 public DisplayAdjustments(DisplayAdjustments daj) { 41 setCompatibilityInfo(daj.mCompatInfo); 42 mConfiguration = daj.mConfiguration; 43 } 44 setCompatibilityInfo(CompatibilityInfo compatInfo)45 public void setCompatibilityInfo(CompatibilityInfo compatInfo) { 46 if (this == DEFAULT_DISPLAY_ADJUSTMENTS) { 47 throw new IllegalArgumentException( 48 "setCompatbilityInfo: Cannot modify DEFAULT_DISPLAY_ADJUSTMENTS"); 49 } 50 if (compatInfo != null && (compatInfo.isScalingRequired() 51 || !compatInfo.supportsScreen())) { 52 mCompatInfo = compatInfo; 53 } else { 54 mCompatInfo = CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO; 55 } 56 } 57 getCompatibilityInfo()58 public CompatibilityInfo getCompatibilityInfo() { 59 return mCompatInfo; 60 } 61 setConfiguration(Configuration configuration)62 public void setConfiguration(Configuration configuration) { 63 if (this == DEFAULT_DISPLAY_ADJUSTMENTS) { 64 throw new IllegalArgumentException( 65 "setConfiguration: Cannot modify DEFAULT_DISPLAY_ADJUSTMENTS"); 66 } 67 mConfiguration = configuration; 68 } 69 getConfiguration()70 public Configuration getConfiguration() { 71 return mConfiguration; 72 } 73 74 @Override hashCode()75 public int hashCode() { 76 int hash = 17; 77 hash = hash * 31 + mCompatInfo.hashCode(); 78 if (DEVELOPMENT_RESOURCES_DEPEND_ON_ACTIVITY_TOKEN) { 79 hash = hash * 31 + (mConfiguration == null ? 0 : mConfiguration.hashCode()); 80 } 81 return hash; 82 } 83 84 @Override equals(Object o)85 public boolean equals(Object o) { 86 if (!(o instanceof DisplayAdjustments)) { 87 return false; 88 } 89 DisplayAdjustments daj = (DisplayAdjustments)o; 90 return Objects.equals(daj.mCompatInfo, mCompatInfo) && 91 Objects.equals(daj.mConfiguration, mConfiguration); 92 } 93 } 94