1 /* 2 * Copyright (C) 2010 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.resources; 18 19 20 /** 21 * Density enum. 22 * <p/>This is used in the manifest in the uses-configuration node and in the resource folder names 23 * as well as other places needing to know the density values. 24 */ 25 public enum Density implements ResourceEnum { 26 XHIGH("xhdpi", "X-High Density", 320, 8), //$NON-NLS-1$ 27 HIGH("hdpi", "High Density", 240, 4), //$NON-NLS-1$ 28 TV("tvdpi", "TV Density", 213, 13), //$NON-NLS-1$ 29 MEDIUM("mdpi", "Medium Density", 160, 4), //$NON-NLS-1$ 30 LOW("ldpi", "Low Density", 120, 4), //$NON-NLS-1$ 31 NODPI("nodpi", "No Density", 0, 4); //$NON-NLS-1$ 32 33 public final static int DEFAULT_DENSITY = 160; 34 35 private final String mValue; 36 private final String mDisplayValue; 37 private final int mDensity; 38 private final int mSince; 39 Density(String value, String displayValue, int density, int since)40 private Density(String value, String displayValue, int density, int since) { 41 mValue = value; 42 mDisplayValue = displayValue; 43 mDensity = density; 44 mSince = since; 45 } 46 47 /** 48 * Returns the enum matching the provided qualifier value. 49 * @param value The qualifier value. 50 * @return the enum for the qualifier value or null if no match was found. 51 */ getEnum(String value)52 public static Density getEnum(String value) { 53 for (Density orient : values()) { 54 if (orient.mValue.equals(value)) { 55 return orient; 56 } 57 } 58 59 return null; 60 } 61 62 /** 63 * Returns the enum matching the given density value 64 * @param value The density value. 65 * @return the enum for the density value or null if no match was found. 66 */ getEnum(int value)67 public static Density getEnum(int value) { 68 for (Density d : values()) { 69 if (d.mDensity == value) { 70 return d; 71 } 72 } 73 74 return null; 75 } 76 77 @Override getResourceValue()78 public String getResourceValue() { 79 return mValue; 80 } 81 getDpiValue()82 public int getDpiValue() { 83 return mDensity; 84 } 85 since()86 public int since() { 87 return mSince; 88 } 89 getLegacyValue()90 public String getLegacyValue() { 91 if (this != NODPI) { 92 return String.format("%1$ddpi", getDpiValue()); 93 } 94 95 return ""; 96 } 97 98 @Override getShortDisplayValue()99 public String getShortDisplayValue() { 100 return mDisplayValue; 101 } 102 103 @Override getLongDisplayValue()104 public String getLongDisplayValue() { 105 return mDisplayValue; 106 } 107 getIndex(Density value)108 public static int getIndex(Density value) { 109 int i = 0; 110 for (Density input : values()) { 111 if (value == input) { 112 return i; 113 } 114 115 i++; 116 } 117 118 return -1; 119 } 120 getByIndex(int index)121 public static Density getByIndex(int index) { 122 int i = 0; 123 for (Density value : values()) { 124 if (i == index) { 125 return value; 126 } 127 i++; 128 } 129 return null; 130 } 131 132 @Override isFakeValue()133 public boolean isFakeValue() { 134 return false; 135 } 136 137 @Override isValidValueForDevice()138 public boolean isValidValueForDevice() { 139 return this != NODPI; // nodpi is not a valid config for devices. 140 } 141 } 142