diff options
Diffstat (limited to 'src/com/android/gallery3d/data/ClusterAlbum.java')
-rw-r--r-- | src/com/android/gallery3d/data/ClusterAlbum.java | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/data/ClusterAlbum.java b/src/com/android/gallery3d/data/ClusterAlbum.java new file mode 100644 index 000000000..8681952bf --- /dev/null +++ b/src/com/android/gallery3d/data/ClusterAlbum.java @@ -0,0 +1,143 @@ +/* + * Copyright (C) 2010 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.gallery3d.data; + +import java.util.ArrayList; + +public class ClusterAlbum extends MediaSet implements ContentListener { + @SuppressWarnings("unused") + private static final String TAG = "ClusterAlbum"; + private ArrayList<Path> mPaths = new ArrayList<Path>(); + private String mName = ""; + private DataManager mDataManager; + private MediaSet mClusterAlbumSet; + private MediaItem mCover; + + public ClusterAlbum(Path path, DataManager dataManager, + MediaSet clusterAlbumSet) { + super(path, nextVersionNumber()); + mDataManager = dataManager; + mClusterAlbumSet = clusterAlbumSet; + mClusterAlbumSet.addContentListener(this); + } + + public void setCoverMediaItem(MediaItem cover) { + mCover = cover; + } + + @Override + public MediaItem getCoverMediaItem() { + return mCover != null ? mCover : super.getCoverMediaItem(); + } + + void setMediaItems(ArrayList<Path> paths) { + mPaths = paths; + } + + ArrayList<Path> getMediaItems() { + return mPaths; + } + + public void setName(String name) { + mName = name; + } + + @Override + public String getName() { + return mName; + } + + @Override + public int getMediaItemCount() { + return mPaths.size(); + } + + @Override + public ArrayList<MediaItem> getMediaItem(int start, int count) { + return getMediaItemFromPath(mPaths, start, count, mDataManager); + } + + public static ArrayList<MediaItem> getMediaItemFromPath( + ArrayList<Path> paths, int start, int count, + DataManager dataManager) { + if (start >= paths.size()) { + return new ArrayList<MediaItem>(); + } + int end = Math.min(start + count, paths.size()); + ArrayList<Path> subset = new ArrayList<Path>(paths.subList(start, end)); + final MediaItem[] buf = new MediaItem[end - start]; + ItemConsumer consumer = new ItemConsumer() { + @Override + public void consume(int index, MediaItem item) { + buf[index] = item; + } + }; + dataManager.mapMediaItems(subset, consumer, 0); + ArrayList<MediaItem> result = new ArrayList<MediaItem>(end - start); + for (int i = 0; i < buf.length; i++) { + result.add(buf[i]); + } + return result; + } + + @Override + protected int enumerateMediaItems(ItemConsumer consumer, int startIndex) { + mDataManager.mapMediaItems(mPaths, consumer, startIndex); + return mPaths.size(); + } + + @Override + public int getTotalMediaItemCount() { + return mPaths.size(); + } + + @Override + public long reload() { + if (mClusterAlbumSet.reload() > mDataVersion) { + mDataVersion = nextVersionNumber(); + } + return mDataVersion; + } + + @Override + public void onContentDirty() { + notifyContentChanged(); + } + + @Override + public int getSupportedOperations() { + return SUPPORT_SHARE | SUPPORT_DELETE | SUPPORT_INFO; + } + + @Override + public void delete() { + ItemConsumer consumer = new ItemConsumer() { + @Override + public void consume(int index, MediaItem item) { + if ((item.getSupportedOperations() & SUPPORT_DELETE) != 0) { + item.delete(); + } + } + }; + mDataManager.mapMediaItems(mPaths, consumer, 0); + } + + @Override + public boolean isLeafAlbum() { + return true; + } +} |