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-rw-r--r--src/com/android/gallery3d/data/ClusterAlbum.java143
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
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+++ b/src/com/android/gallery3d/data/ClusterAlbum.java
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+/*
+ * 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;
+ }
+}