1 /* 2 * Copyright (C) 2012 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 package com.android.dreams.phototable; 17 18 import android.content.Context; 19 import android.content.SharedPreferences; 20 21 import java.io.InputStream; 22 import java.util.ArrayList; 23 import java.util.Collection; 24 25 /** 26 * Picks a random image from the local store. 27 */ 28 public class StockSource extends PhotoSource { 29 public static final String ALBUM_ID = "com.android.dreams.phototable.StockSource"; 30 private static final String TAG = "PhotoTable.StockSource"; 31 private static final int[] PHOTOS = { R.drawable.blank_photo }; 32 33 private final ArrayList<ImageData> mImageCache; 34 private final ArrayList<AlbumData> mAlbumCache; 35 36 private final ArrayList<ImageData> mImageList; 37 private final ArrayList<AlbumData> mAlbumList; 38 39 private final String mStockPhotoName; 40 StockSource(Context context, SharedPreferences settings)41 public StockSource(Context context, SharedPreferences settings) { 42 super(context, settings, null); 43 mSourceName = TAG; 44 mStockPhotoName = mResources.getString(R.string.stock_photo_album_name, "Default Photos"); 45 mImageCache = new ArrayList<ImageData>(PHOTOS.length); 46 mAlbumCache = new ArrayList<AlbumData>(1); 47 mImageList = new ArrayList<ImageData>(PHOTOS.length); 48 mAlbumList = new ArrayList<AlbumData>(1); 49 50 AlbumData albumData = new AlbumData(); 51 albumData.id = ALBUM_ID; 52 albumData.account = mStockPhotoName; 53 albumData.title = mStockPhotoName; 54 mAlbumCache.add(albumData); 55 56 for (int i = 0; i < PHOTOS.length; i++) { 57 ImageData imageData = new ImageData(); 58 imageData.id = Integer.toString(i); 59 mImageCache.add(imageData); 60 } 61 62 fillQueue(); 63 } 64 65 @Override findAlbums()66 public Collection<AlbumData> findAlbums() { 67 if (mAlbumList.isEmpty()) { 68 mAlbumList.addAll(mAlbumCache); 69 } 70 log(TAG, "returning a list of albums: " + mAlbumList.size()); 71 return mAlbumList; 72 } 73 74 @Override findImages(int howMany)75 protected Collection<ImageData> findImages(int howMany) { 76 if (mImageList.isEmpty()) { 77 mImageList.addAll(mImageCache); 78 } 79 return mImageList; 80 } 81 82 @Override getStream(ImageData data, int longSide)83 protected InputStream getStream(ImageData data, int longSide) { 84 InputStream is = null; 85 try { 86 log(TAG, "opening:" + data.id); 87 int idx = Integer.valueOf(data.id); 88 is = mResources.openRawResource(PHOTOS[idx]); 89 } catch (Exception ex) { 90 log(TAG, ex.toString()); 91 is = null; 92 } 93 94 return is; 95 } 96 97 @Override naturalNext(ImageData current)98 public ImageData naturalNext(ImageData current) { 99 int idx = Integer.valueOf(current.id); 100 idx = (idx + 1) % PHOTOS.length; 101 return mImageCache.get(idx); 102 } 103 104 @Override naturalPrevious(ImageData current)105 public ImageData naturalPrevious(ImageData current) { 106 int idx = Integer.valueOf(current.id); 107 idx = (PHOTOS.length + idx - 1) % PHOTOS.length; 108 return mImageCache.get(idx); 109 } 110 111 @Override donePaging(ImageData current)112 protected void donePaging(ImageData current) { 113 } 114 } 115 116