1/*
2 * Copyright (C) 2009 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
17package com.android.camera.gallery;
18
19import android.content.ContentResolver;
20import android.net.Uri;
21
22import java.util.HashMap;
23
24/**
25 * An implementation of interface <code>IImageList</code> which contains only
26 * one image.
27 */
28public class SingleImageList implements IImageList {
29
30    @SuppressWarnings("unused")
31    private static final String TAG = "BaseImageList";
32
33    private IImage mSingleImage;
34    private Uri mUri;
35
36    public SingleImageList(ContentResolver resolver, Uri uri) {
37        mUri = uri;
38        mSingleImage = new UriImage(this, resolver, uri);
39    }
40
41    public HashMap<String, String> getBucketIds() {
42        throw new UnsupportedOperationException();
43    }
44
45    public int getCount() {
46        return 1;
47    }
48
49    public boolean isEmpty() {
50        return false;
51    }
52
53    public int getImageIndex(IImage image) {
54        return image == mSingleImage ? 0 : -1;
55    }
56
57    public IImage getImageAt(int i) {
58        return i == 0 ? mSingleImage : null;
59    }
60
61    public boolean removeImage(IImage image) {
62        return false;
63    }
64
65    public boolean removeImageAt(int index) {
66        return false;
67    }
68
69    public IImage getImageForUri(Uri uri) {
70        return uri.equals(mUri) ? mSingleImage : null;
71    }
72
73    public void close() {
74        mSingleImage = null;
75        mUri = null;
76    }
77}
78