1 /* 2 * Copyright (C) 2014 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.tv.settings.widget; 18 19 import android.content.Context; 20 import android.content.Intent.ShortcutIconResource; 21 import android.graphics.Bitmap; 22 import android.net.Uri; 23 import android.text.TextUtils; 24 25 import com.android.tv.settings.util.UriUtils; 26 27 /** 28 * Options for loading bitmap resources from different sources and for scaling to an appropriate 29 * resolution. 30 * 31 * @see BitmapWorkerTask 32 */ 33 public class BitmapWorkerOptions { 34 35 /** Max image size handled by android.graphics */ 36 static final int MAX_IMAGE_DIMENSION_PX = 2048; 37 38 /** flag to force disable memory cache */ 39 public static final int CACHE_FLAG_MEM_DISABLED = 1; 40 /** TODO support disk cache options */ 41 public static final int CACHE_FLAG_DISK_DISABLED = 2; 42 43 private ShortcutIconResource mIconResource; 44 private Uri mResourceUri; 45 46 private int mWidth; 47 private int mHeight; 48 private Context mContext; 49 private int mCacheFlag; 50 private Bitmap.Config mBitmapConfig; 51 52 private String mKey; 53 54 /** 55 * Builds options for a bitmap worker task. 56 */ 57 public static class Builder { 58 59 private String mPackageName; 60 private String mResourceName; 61 private Uri mResourceUri; 62 63 private int mWidth; 64 private int mHeight; 65 private Context mContext; 66 private int mCacheFlag; 67 private Bitmap.Config mBitmapConfig; 68 69 public Builder(Context context) { 70 mWidth = MAX_IMAGE_DIMENSION_PX; 71 mHeight = MAX_IMAGE_DIMENSION_PX; 72 mContext = context.getApplicationContext(); 73 mCacheFlag = 0; 74 mBitmapConfig = null; 75 } 76 77 public BitmapWorkerOptions build() { 78 BitmapWorkerOptions options = new BitmapWorkerOptions(); 79 80 if (!TextUtils.isEmpty(mPackageName)) { 81 options.mIconResource = new ShortcutIconResource(); 82 options.mIconResource.packageName = mPackageName; 83 options.mIconResource.resourceName = mResourceName; 84 } 85 86 final int largestDim = Math.max(mWidth, mHeight); 87 if (largestDim > MAX_IMAGE_DIMENSION_PX) { 88 double scale = (double) MAX_IMAGE_DIMENSION_PX / largestDim; 89 mWidth *= scale; 90 mHeight *= scale; 91 } 92 93 options.mResourceUri = mResourceUri; 94 options.mWidth = mWidth; 95 options.mHeight = mHeight; 96 options.mContext = mContext; 97 options.mCacheFlag = mCacheFlag; 98 options.mBitmapConfig = mBitmapConfig; 99 if (options.mIconResource == null && options.mResourceUri == null) { 100 throw new RuntimeException("Both Icon and ResourceUri are null"); 101 } 102 return options; 103 } 104 105 public Builder resource(String packageName, String resourceName) { 106 mPackageName = packageName; 107 mResourceName = resourceName; 108 return this; 109 } 110 111 public Builder resource(ShortcutIconResource iconResource) { 112 mPackageName = iconResource.packageName; 113 mResourceName = iconResource.resourceName; 114 return this; 115 } 116 117 public Builder resource(Uri resourceUri) { 118 mResourceUri = resourceUri; 119 return this; 120 } 121 122 public Builder width(int width) { 123 if (width > 0) { 124 mWidth = width; 125 } else { 126 throw new IllegalArgumentException("Can't set width to " + width); 127 } 128 return this; 129 } 130 131 public Builder height(int height) { 132 if (height > 0) { 133 mHeight = height; 134 } else { 135 throw new IllegalArgumentException("Can't set height to " + height); 136 } 137 return this; 138 } 139 140 public Builder cacheFlag(int flag) { 141 mCacheFlag = flag; 142 return this; 143 } 144 145 public Builder bitmapConfig(Bitmap.Config config) { 146 mBitmapConfig = config; 147 return this; 148 } 149 150 } 151 152 /** 153 * Private constructor. 154 * <p> 155 * Use a {@link Builder} to create. 156 */ 157 private BitmapWorkerOptions() { 158 } 159 160 public ShortcutIconResource getIconResource() { 161 return mIconResource; 162 } 163 164 public Uri getResourceUri() { 165 return mResourceUri; 166 } 167 168 public int getWidth() { 169 return mWidth; 170 } 171 172 public int getHeight() { 173 return mHeight; 174 } 175 176 public Context getContext() { 177 return mContext; 178 } 179 180 public boolean isFromResource() { 181 return getIconResource() != null || 182 UriUtils.isAndroidResourceUri(getResourceUri()) 183 || UriUtils.isShortcutIconResourceUri(getResourceUri()); 184 } 185 186 /** 187 * Combination of CACHE_FLAG_MEM_DISABLED and CACHE_FLAG_DISK_DISABLED, 188 * 0 for fully cache enabled 189 */ 190 public int getCacheFlag() { 191 return mCacheFlag; 192 } 193 194 public boolean isMemCacheEnabled() { 195 return (mCacheFlag & CACHE_FLAG_MEM_DISABLED) == 0; 196 } 197 198 public boolean isDiskCacheEnabled() { 199 return (mCacheFlag & CACHE_FLAG_DISK_DISABLED) == 0; 200 } 201 202 /** 203 * @return preferred Bitmap config to decode bitmap, null for auto detect. 204 * Use {@link Builder#bitmapConfig(android.graphics.Bitmap.Config)} to change it. 205 */ 206 public Bitmap.Config getBitmapConfig() { 207 return mBitmapConfig; 208 } 209 210 public String getCacheKey() { 211 if (mKey == null) { 212 mKey = mIconResource != null ? mIconResource.packageName + "/" 213 + mIconResource.resourceName : mResourceUri.toString(); 214 } 215 return mKey; 216 } 217 218 @Override 219 public String toString() { 220 if (mIconResource == null) { 221 return "URI: " + mResourceUri; 222 } else { 223 return "PackageName: " + mIconResource.packageName + " Resource: " + mIconResource 224 + " URI: " + mResourceUri; 225 } 226 } 227 } 228
