| /* |
| * 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.photoeditor; |
| |
| import android.content.ContentResolver; |
| import android.content.ContentValues; |
| import android.content.Context; |
| import android.database.Cursor; |
| import android.graphics.Bitmap.CompressFormat; |
| import android.net.Uri; |
| import android.os.AsyncTask; |
| import android.os.Environment; |
| import android.provider.MediaStore.Images; |
| import android.provider.MediaStore.Images.ImageColumns; |
| import android.widget.Toast; |
| |
| import java.io.File; |
| import java.sql.Date; |
| import java.text.SimpleDateFormat; |
| |
| /** |
| * Asynchronous task for loading source photo in target dimensions and saving edits as a new copy. |
| */ |
| public class SaveCopyTask extends AsyncTask<Photo, Void, Uri> { |
| |
| /** |
| * Callback for the completed asynchronous task. |
| */ |
| public interface Callback { |
| |
| void onComplete(Uri uri); |
| } |
| |
| private static final String TIME_STAMP_NAME = "'IMG'_yyyyMMdd_HHmmss"; |
| private static final int INDEX_DATE_TAKEN = 0; |
| private static final int INDEX_LATITUDE = 1; |
| private static final int INDEX_LONGITUDE = 2; |
| |
| private static final String[] IMAGE_PROJECTION = new String[] { |
| ImageColumns.DATE_TAKEN, |
| ImageColumns.LATITUDE, |
| ImageColumns.LONGITUDE, |
| }; |
| |
| private final Context context; |
| private final Uri sourceUri; |
| private final Callback callback; |
| private final String saveFileName; |
| |
| public SaveCopyTask(Context context, Uri sourceUri, Callback callback) { |
| this.context = context; |
| this.sourceUri = sourceUri; |
| this.callback = callback; |
| |
| saveFileName = new SimpleDateFormat(TIME_STAMP_NAME).format( |
| new Date(System.currentTimeMillis())); |
| } |
| |
| /** |
| * The task should be executed with one given photo to be saved. |
| */ |
| @Override |
| protected Uri doInBackground(Photo... params) { |
| // TODO: Support larger dimensions for photo saving. |
| if (params[0] == null) { |
| return null; |
| } |
| Photo photo = params[0]; |
| File file = save(photo); |
| Uri uri = (file != null) ? insertContent(file) : null; |
| photo.clear(); |
| return uri; |
| } |
| |
| @Override |
| protected void onPostExecute(Uri result) { |
| String message = (result == null) ? context.getString(R.string.saving_failure) |
| : context.getString(R.string.photo_saved, saveFileName); |
| Toast.makeText(context, message, Toast.LENGTH_SHORT).show(); |
| |
| callback.onComplete(result); |
| } |
| |
| private File save(Photo photo) { |
| String directory = Environment.getExternalStorageDirectory().toString() + "/" |
| + context.getString(R.string.edited_photo_bucket_name); |
| |
| return new BitmapUtils(context).saveBitmap( |
| photo.bitmap(), directory, saveFileName, CompressFormat.JPEG); |
| } |
| |
| /** |
| * Insert the content (saved file) with proper source photo properties. |
| */ |
| private Uri insertContent(File file) { |
| long now = System.currentTimeMillis() / 1000; |
| long dateTaken = now; |
| double latitude = 0f; |
| double longitude = 0f; |
| |
| ContentResolver contentResolver = context.getContentResolver(); |
| Cursor cursor = contentResolver.query( |
| sourceUri, IMAGE_PROJECTION, null, null, null); |
| if ((cursor != null) && cursor.moveToNext()) { |
| dateTaken = cursor.getLong(INDEX_DATE_TAKEN); |
| latitude = cursor.getDouble(INDEX_LATITUDE); |
| longitude = cursor.getDouble(INDEX_LONGITUDE); |
| } |
| |
| ContentValues values = new ContentValues(); |
| values.put(Images.Media.TITLE, saveFileName); |
| values.put(Images.Media.DISPLAY_NAME, saveFileName); |
| values.put(Images.Media.MIME_TYPE, "image/jpeg"); |
| values.put(Images.Media.DATE_TAKEN, dateTaken); |
| values.put(Images.Media.DATE_MODIFIED, now); |
| values.put(Images.Media.DATE_ADDED, now); |
| values.put(Images.Media.ORIENTATION, 0); |
| values.put(Images.Media.DATA, file.getAbsolutePath()); |
| values.put(Images.Media.SIZE, file.length()); |
| |
| // TODO: Change || to && after the default location issue is fixed. |
| if ((latitude != 0f) || (longitude != 0f)) { |
| values.put(Images.Media.LATITUDE, latitude); |
| values.put(Images.Media.LONGITUDE, longitude); |
| } |
| return contentResolver.insert(Images.Media.EXTERNAL_CONTENT_URI, values); |
| } |
| } |