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