1 files changed, 80 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/data/ComboAlbumSet.java b/src/com/android/gallery3d/data/ComboAlbumSet.java
new file mode 100644
index 000000000..aa196039d
--- /dev/null
+++ b/src/com/android/gallery3d/data/ComboAlbumSet.java
@@ -0,0 +1,80 @@
+/*
+ * 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 com.android.gallery3d.R;
+import com.android.gallery3d.app.GalleryApp;
+
+// ComboAlbumSet combines multiple media sets into one. It lists all sub
+// media sets from the input album sets.
+// This only handles SubMediaSets, not MediaItems. (That's all we need now)
+public class ComboAlbumSet extends MediaSet implements ContentListener {
+    private static final String TAG = "ComboAlbumSet";
+    private final MediaSet[] mSets;
+    private final String mName;
+
+    public ComboAlbumSet(Path path, GalleryApp application, MediaSet[] mediaSets) {
+        super(path, nextVersionNumber());
+        mSets = mediaSets;
+        for (MediaSet set : mSets) {
+            set.addContentListener(this);
+        }
+        mName = application.getResources().getString(
+                R.string.set_label_all_albums);
+    }
+
+    @Override
+    public MediaSet getSubMediaSet(int index) {
+        for (MediaSet set : mSets) {
+            int size = set.getSubMediaSetCount();
+            if (index < size) {
+                return set.getSubMediaSet(index);
+            }
+            index -= size;
+        }
+        return null;
+    }
+
+    @Override
+    public int getSubMediaSetCount() {
+        int count = 0;
+        for (MediaSet set : mSets) {
+            count += set.getSubMediaSetCount();
+        }
+        return count;
+    }
+
+    @Override
+    public String getName() {
+        return mName;
+    }
+
+    @Override
+    public long reload() {
+        boolean changed = false;
+        for (int i = 0, n = mSets.length; i < n; ++i) {
+            long version = mSets[i].reload();
+            if (version > mDataVersion) changed = true;
+        }
+        if (changed) mDataVersion = nextVersionNumber();
+        return mDataVersion;
+    }
+
+    public void onContentDirty() {
+        notifyContentChanged();
+    }
+}