content: /*
   * Copyright (C) 2011 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 android.view;
  
  import android.annotation.UnsupportedAppUsage;
  import android.content.res.CompatibilityInfo;
  import android.content.res.Configuration;
  
  import java.util.Objects;
  
  /** @hide */
  public class DisplayAdjustments {
      public static final DisplayAdjustments DEFAULT_DISPLAY_ADJUSTMENTS = new DisplayAdjustments();
  
      private volatile CompatibilityInfo mCompatInfo = CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO;
      private Configuration mConfiguration;
  
      @UnsupportedAppUsage
      public DisplayAdjustments() {
      }
  
      public DisplayAdjustments(Configuration configuration) {
          mConfiguration = new Configuration(configuration != null
                  ? configuration : Configuration.EMPTY);
      }
  
      public DisplayAdjustments(DisplayAdjustments daj) {
          setCompatibilityInfo(daj.mCompatInfo);
          mConfiguration = new Configuration(daj.mConfiguration != null
                  ? daj.mConfiguration : Configuration.EMPTY);
      }
  
      @UnsupportedAppUsage
      public void setCompatibilityInfo(CompatibilityInfo compatInfo) {
          if (this == DEFAULT_DISPLAY_ADJUSTMENTS) {
              throw new IllegalArgumentException(
                      "setCompatbilityInfo: Cannot modify DEFAULT_DISPLAY_ADJUSTMENTS");
          }
          if (compatInfo != null && (compatInfo.isScalingRequired()
                  || !compatInfo.supportsScreen())) {
              mCompatInfo = compatInfo;
          } else {
              mCompatInfo = CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO;
          }
      }
  
      public CompatibilityInfo getCompatibilityInfo() {
          return mCompatInfo;
      }
  
      public void setConfiguration(Configuration configuration) {
          if (this == DEFAULT_DISPLAY_ADJUSTMENTS) {
              throw new IllegalArgumentException(
                      "setConfiguration: Cannot modify DEFAULT_DISPLAY_ADJUSTMENTS");
          }
          mConfiguration.setTo(configuration != null ? configuration : Configuration.EMPTY);
      }
  
      @UnsupportedAppUsage
      public Configuration getConfiguration() {
          return mConfiguration;
      }
  
      @Override
      public int hashCode() {
          int hash = 17;
          hash = hash * 31 + Objects.hashCode(mCompatInfo);
          hash = hash * 31 + Objects.hashCode(mConfiguration);
          return hash;
      }
  
      @Override
      public boolean equals(Object o) {
          if (!(o instanceof DisplayAdjustments)) {
              return false;
          }
          DisplayAdjustments daj = (DisplayAdjustments)o;
          return Objects.equals(daj.mCompatInfo, mCompatInfo) &&
                  Objects.equals(daj.mConfiguration, mConfiguration);
      }
  }
  