105 lines
3.6 KiB
Java
105 lines
3.6 KiB
Java
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.view;
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import android.annotation.NonNull;
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import android.annotation.Nullable;
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import android.compat.annotation.UnsupportedAppUsage;
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import android.content.res.CompatibilityInfo;
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import android.content.res.Configuration;
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import java.util.Objects;
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/** @hide */
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public class DisplayAdjustments {
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public static final DisplayAdjustments DEFAULT_DISPLAY_ADJUSTMENTS = new DisplayAdjustments();
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private volatile CompatibilityInfo mCompatInfo = CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO;
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private final Configuration mConfiguration = new Configuration(Configuration.EMPTY);
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@UnsupportedAppUsage
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public DisplayAdjustments() {
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}
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public DisplayAdjustments(@Nullable Configuration configuration) {
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if (configuration != null) {
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mConfiguration.setTo(configuration);
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}
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}
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public DisplayAdjustments(@NonNull DisplayAdjustments daj) {
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setCompatibilityInfo(daj.mCompatInfo);
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mConfiguration.setTo(daj.getConfiguration());
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}
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@UnsupportedAppUsage
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public void setCompatibilityInfo(@Nullable CompatibilityInfo compatInfo) {
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if (this == DEFAULT_DISPLAY_ADJUSTMENTS) {
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throw new IllegalArgumentException(
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"setCompatbilityInfo: Cannot modify DEFAULT_DISPLAY_ADJUSTMENTS");
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}
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if (compatInfo != null && (compatInfo.isScalingRequired()
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|| !compatInfo.supportsScreen())) {
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mCompatInfo = compatInfo;
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} else {
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mCompatInfo = CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO;
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}
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}
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public CompatibilityInfo getCompatibilityInfo() {
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return mCompatInfo;
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}
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/**
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* Updates the configuration for the DisplayAdjustments with new configuration.
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* Default to EMPTY configuration if new configuration is {@code null}
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* @param configuration new configuration
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* @throws IllegalArgumentException if trying to modify DEFAULT_DISPLAY_ADJUSTMENTS
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*/
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public void setConfiguration(@Nullable Configuration configuration) {
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if (this == DEFAULT_DISPLAY_ADJUSTMENTS) {
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throw new IllegalArgumentException(
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"setConfiguration: Cannot modify DEFAULT_DISPLAY_ADJUSTMENTS");
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}
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mConfiguration.setTo(configuration != null ? configuration : Configuration.EMPTY);
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}
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@UnsupportedAppUsage
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@NonNull
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public Configuration getConfiguration() {
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return mConfiguration;
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}
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@Override
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public int hashCode() {
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int hash = 17;
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hash = hash * 31 + Objects.hashCode(mCompatInfo);
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hash = hash * 31 + Objects.hashCode(mConfiguration);
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return hash;
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}
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@Override
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public boolean equals(@Nullable Object o) {
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if (!(o instanceof DisplayAdjustments)) {
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return false;
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}
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DisplayAdjustments daj = (DisplayAdjustments)o;
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return Objects.equals(daj.mCompatInfo, mCompatInfo)
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&& Objects.equals(daj.mConfiguration, mConfiguration);
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}
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}
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