Initial code for Gallery2.

fix: 5176434

Change-Id: I041e282b9c7b34ceb1db8b033be2b853bb3a992c

1 files changed, 94 insertions, 0 deletions

diff --git a/src/com/android/gallery3d/data/FaceClustering.java b/src/com/android/gallery3d/data/FaceClustering.java
new file mode 100644
index 000000000..6ed73b560
--- /dev/null
+++ b/src/com/android/gallery3d/data/FaceClustering.java
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2011 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 android.content.Context;
+
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.TreeMap;
+
+public class FaceClustering extends Clustering {
+    @SuppressWarnings("unused")
+    private static final String TAG = "FaceClustering";
+
+    private ArrayList<ArrayList<Path>> mClusters;
+    private String[] mNames;
+    private String mUntaggedString;
+
+    public FaceClustering(Context context) {
+        mUntaggedString = context.getResources().getString(R.string.untagged);
+    }
+
+    @Override
+    public void run(MediaSet baseSet) {
+        final TreeMap<Face, ArrayList<Path>> map =
+                new TreeMap<Face, ArrayList<Path>>();
+        final ArrayList<Path> untagged = new ArrayList<Path>();
+
+        baseSet.enumerateTotalMediaItems(new MediaSet.ItemConsumer() {
+            public void consume(int index, MediaItem item) {
+                Path path = item.getPath();
+
+                Face[] faces = item.getFaces();
+                if (faces == null || faces.length == 0) {
+                    untagged.add(path);
+                    return;
+                }
+                for (int j = 0; j < faces.length; j++) {
+                    Face key = faces[j];
+                    ArrayList<Path> list = map.get(key);
+                    if (list == null) {
+                        list = new ArrayList<Path>();
+                        map.put(key, list);
+                    }
+                    list.add(path);
+                }
+            }
+        });
+
+        int m = map.size();
+        mClusters = new ArrayList<ArrayList<Path>>();
+        mNames = new String[m + ((untagged.size() > 0) ? 1 : 0)];
+        int i = 0;
+        for (Map.Entry<Face, ArrayList<Path>> entry : map.entrySet()) {
+            mNames[i++] = entry.getKey().getName();
+            mClusters.add(entry.getValue());
+        }
+        if (untagged.size() > 0) {
+            mNames[i++] = mUntaggedString;
+            mClusters.add(untagged);
+        }
+    }
+
+    @Override
+    public int getNumberOfClusters() {
+        return mClusters.size();
+    }
+
+    @Override
+    public ArrayList<Path> getCluster(int index) {
+        return mClusters.get(index);
+    }
+
+    @Override
+    public String getClusterName(int index) {
+        return mNames[index];
+    }
+}