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.database.Cursor;
21import android.graphics.Bitmap;
22import android.net.Uri;
23import android.provider.DrmStore;
24
25/**
26 * Represents an ordered collection of Image objects from the DRM provider.
27 */
28public class DrmImageList extends ImageList implements IImageList {
29
30    // TODO: get other field from database too ?
31    private static final String[] DRM_IMAGE_PROJECTION = new String[] {
32        DrmStore.Images._ID,
33        DrmStore.Images.DATA,
34        DrmStore.Images.MIME_TYPE,
35    };
36
37    private static final int INDEX_ID = 0;
38    private static final int INDEX_DATA_PATH = 1;
39    private static final int INDEX_MIME_TYPE = 2;
40
41    public DrmImageList(ContentResolver resolver, Uri imageUri, int sort,
42            String bucketId) {
43        super(resolver, imageUri, sort, bucketId);
44    }
45
46    @Override
47    protected String sortOrder() {
48        // We have no date information in DrmStore, so we just sort by _id.
49        return "_id ASC";
50    }
51
52    @Override
53    protected Cursor createCursor() {
54        return mContentResolver.query(
55                mBaseUri, DRM_IMAGE_PROJECTION, null, null, sortOrder());
56    }
57
58    private static class DrmImage extends Image {
59
60        protected DrmImage(BaseImageList container, ContentResolver cr,
61                long id, int index, Uri uri, String dataPath,
62                long miniThumbMagic, String mimeType, long dateTaken,
63                String title, int rotation) {
64            super(container, cr, id, index, uri, dataPath,
65                    mimeType, dateTaken, title, rotation);
66        }
67
68        @Override
69        public int getDegreesRotated() {
70            return 0;
71        }
72
73        @Override
74        public boolean isDrm() {
75            return true;
76        }
77
78        @Override
79        public boolean isReadonly() {
80            return true;
81        }
82
83        @Override
84        public Bitmap miniThumbBitmap() {
85            return fullSizeBitmap(IImage.MINI_THUMB_TARGET_SIZE,
86                    IImage.MINI_THUMB_MAX_NUM_PIXELS);
87        }
88
89        @Override
90        public Bitmap thumbBitmap(boolean rotateAsNeeded) {
91            return fullSizeBitmap(IImage.THUMBNAIL_TARGET_SIZE,
92                    IImage.THUMBNAIL_MAX_NUM_PIXELS);
93        }
94    }
95
96    @Override
97    protected BaseImage loadImageFromCursor(Cursor cursor) {
98        long id = cursor.getLong(INDEX_ID);
99        String dataPath = cursor.getString(INDEX_DATA_PATH);
100        String mimeType = cursor.getString(INDEX_MIME_TYPE);
101        return new DrmImage(this, mContentResolver, id, cursor.getPosition(),
102                contentUri(id), dataPath, 0, mimeType, 0, "DrmImage-" + id,
103                0);
104    }
105}
106