| /* |
| * Copyright (C) 2009 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.camera.gallery; |
| |
| import android.content.ContentResolver; |
| import android.database.Cursor; |
| import android.net.Uri; |
| import android.provider.MediaStore.Images.Media; |
| |
| import java.util.HashMap; |
| |
| /** |
| * Represents an ordered collection of Image objects. Provides an API to add |
| * and remove an image. |
| */ |
| public class ImageList extends BaseImageList implements IImageList { |
| |
| @SuppressWarnings("unused") |
| private static final String TAG = "ImageList"; |
| |
| private static final String[] ACCEPTABLE_IMAGE_TYPES = |
| new String[] { "image/jpeg", "image/png", "image/gif" }; |
| |
| public HashMap<String, String> getBucketIds() { |
| Uri uri = mBaseUri.buildUpon() |
| .appendQueryParameter("distinct", "true").build(); |
| Cursor cursor = Media.query( |
| mContentResolver, uri, |
| new String[] { |
| Media.BUCKET_DISPLAY_NAME, |
| Media.BUCKET_ID}, |
| whereClause(), whereClauseArgs(), null); |
| try { |
| HashMap<String, String> hash = new HashMap<String, String>(); |
| while (cursor.moveToNext()) { |
| hash.put(cursor.getString(1), cursor.getString(0)); |
| } |
| return hash; |
| } finally { |
| cursor.close(); |
| } |
| } |
| |
| /** |
| * ImageList constructor. |
| */ |
| public ImageList(ContentResolver resolver, Uri imageUri, |
| int sort, String bucketId) { |
| super(resolver, imageUri, sort, bucketId); |
| } |
| |
| private static final String WHERE_CLAUSE = |
| "(" + Media.MIME_TYPE + " in (?, ?, ?))"; |
| private static final String WHERE_CLAUSE_WITH_BUCKET_ID = |
| WHERE_CLAUSE + " AND " + Media.BUCKET_ID + " = ?"; |
| |
| protected String whereClause() { |
| return mBucketId == null ? WHERE_CLAUSE : WHERE_CLAUSE_WITH_BUCKET_ID; |
| } |
| |
| protected String[] whereClauseArgs() { |
| // TODO: Since mBucketId won't change, we should keep the array. |
| if (mBucketId != null) { |
| int count = ACCEPTABLE_IMAGE_TYPES.length; |
| String[] result = new String[count + 1]; |
| System.arraycopy(ACCEPTABLE_IMAGE_TYPES, 0, result, 0, count); |
| result[count] = mBucketId; |
| return result; |
| } |
| return ACCEPTABLE_IMAGE_TYPES; |
| } |
| |
| @Override |
| protected Cursor createCursor() { |
| Cursor c = Media.query( |
| mContentResolver, mBaseUri, IMAGE_PROJECTION, |
| whereClause(), whereClauseArgs(), sortOrder()); |
| return c; |
| } |
| |
| static final String[] IMAGE_PROJECTION = new String[] { |
| Media._ID, |
| Media.DATA, |
| Media.DATE_TAKEN, |
| Media.MINI_THUMB_MAGIC, |
| Media.ORIENTATION, |
| Media.TITLE, |
| Media.MIME_TYPE, |
| Media.DATE_MODIFIED}; |
| |
| private static final int INDEX_ID = 0; |
| private static final int INDEX_DATA_PATH = 1; |
| private static final int INDEX_DATE_TAKEN = 2; |
| private static final int INDEX_MINI_THUMB_MAGIC = 3; |
| private static final int INDEX_ORIENTATION = 4; |
| private static final int INDEX_TITLE = 5; |
| private static final int INDEX_MIME_TYPE = 6; |
| private static final int INDEX_DATE_MODIFIED = 7; |
| |
| @Override |
| protected long getImageId(Cursor cursor) { |
| return cursor.getLong(INDEX_ID); |
| } |
| |
| @Override |
| protected BaseImage loadImageFromCursor(Cursor cursor) { |
| long id = cursor.getLong(INDEX_ID); |
| String dataPath = cursor.getString(INDEX_DATA_PATH); |
| long dateTaken = cursor.getLong(INDEX_DATE_TAKEN); |
| if (dateTaken == 0) { |
| dateTaken = cursor.getLong(INDEX_DATE_MODIFIED) * 1000; |
| } |
| long miniThumbMagic = cursor.getLong(INDEX_MINI_THUMB_MAGIC); |
| int orientation = cursor.getInt(INDEX_ORIENTATION); |
| String title = cursor.getString(INDEX_TITLE); |
| String mimeType = cursor.getString(INDEX_MIME_TYPE); |
| if (title == null || title.length() == 0) { |
| title = dataPath; |
| } |
| return new Image(this, mContentResolver, id, cursor.getPosition(), |
| contentUri(id), dataPath, mimeType, dateTaken, title, |
| orientation); |
| } |
| } |