| /* |
| * 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.gallery3d.photoeditor; |
| |
| import android.content.ContentResolver; |
| import android.content.ContentValues; |
| import android.content.Context; |
| import android.database.Cursor; |
| import android.graphics.Bitmap; |
| 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.view.Gravity; |
| import android.widget.Toast; |
| |
| import com.android.gallery3d.R; |
| import com.android.gallery3d.util.BucketNames; |
| |
| import java.io.File; |
| import java.sql.Date; |
| import java.text.SimpleDateFormat; |
| |
| /** |
| * Asynchronous task for saving edited photo as a new copy. |
| */ |
| public class SaveCopyTask extends AsyncTask<Bitmap, Void, Uri> { |
| |
| /** |
| * Callback for the completed asynchronous task. |
| */ |
| public interface Callback { |
| |
| void onComplete(Uri result); |
| } |
| |
| private interface ContentResolverQueryCallback { |
| |
| void onCursorResult(Cursor cursor); |
| } |
| |
| private static final String TIME_STAMP_NAME = "'IMG'_yyyyMMdd_HHmmss"; |
| |
| private final Context context; |
| private final Uri sourceUri; |
| private final Callback callback; |
| private final String saveFileName; |
| private String saveFolderName; |
| |
| 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 bitmap to be saved. |
| */ |
| @Override |
| protected Uri doInBackground(Bitmap... params) { |
| // TODO: Support larger dimensions for photo saving. |
| if (params[0] == null) { |
| return null; |
| } |
| // Use the default save directory if the source directory cannot be saved. |
| File saveDirectory = getSaveDirectory(); |
| if ((saveDirectory == null) || !saveDirectory.canWrite()) { |
| saveDirectory = new File(Environment.getExternalStorageDirectory(), |
| BucketNames.DOWNLOAD); |
| saveFolderName = context.getString(R.string.folder_download); |
| } else { |
| saveFolderName = saveDirectory.getName(); |
| } |
| |
| Bitmap bitmap = params[0]; |
| File file = new BitmapUtils(context).saveBitmap( |
| bitmap, saveDirectory, saveFileName, Bitmap.CompressFormat.JPEG); |
| Uri uri = (file != null) ? insertContent(file) : null; |
| bitmap.recycle(); |
| return uri; |
| } |
| |
| @Override |
| protected void onPostExecute(Uri result) { |
| String message = (result == null) ? context.getString(R.string.saving_failure) |
| : context.getString(R.string.photo_saved, saveFolderName); |
| Toast toast = Toast.makeText(context, message, Toast.LENGTH_SHORT); |
| toast.setGravity(Gravity.CENTER, 0, 0); |
| toast.show(); |
| |
| callback.onComplete(result); |
| } |
| |
| private void querySource(String[] projection, ContentResolverQueryCallback callback) { |
| ContentResolver contentResolver = context.getContentResolver(); |
| Cursor cursor = null; |
| try { |
| cursor = contentResolver.query(sourceUri, projection, null, null, null); |
| if ((cursor != null) && cursor.moveToNext()) { |
| callback.onCursorResult(cursor); |
| } |
| } catch (Exception e) { |
| // Ignore error for lacking the data column from the source. |
| } finally { |
| if (cursor != null) { |
| cursor.close(); |
| } |
| } |
| } |
| |
| private File getSaveDirectory() { |
| final File[] dir = new File[1]; |
| querySource(new String[] { ImageColumns.DATA }, new ContentResolverQueryCallback () { |
| |
| @Override |
| public void onCursorResult(Cursor cursor) { |
| dir[0] = new File(cursor.getString(0)).getParentFile(); |
| } |
| }); |
| return dir[0]; |
| } |
| |
| /** |
| * Insert the content (saved file) with proper source photo properties. |
| */ |
| private Uri insertContent(File file) { |
| long now = System.currentTimeMillis() / 1000; |
| |
| final ContentValues values = new ContentValues(); |
| values.put(Images.Media.TITLE, saveFileName); |
| values.put(Images.Media.DISPLAY_NAME, file.getName()); |
| values.put(Images.Media.MIME_TYPE, "image/jpeg"); |
| values.put(Images.Media.DATE_TAKEN, now); |
| 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()); |
| |
| String[] projection = new String[] { |
| ImageColumns.DATE_TAKEN, |
| ImageColumns.LATITUDE, |
| ImageColumns.LONGITUDE, |
| }; |
| querySource(projection, new ContentResolverQueryCallback() { |
| |
| @Override |
| public void onCursorResult(Cursor cursor) { |
| values.put(Images.Media.DATE_TAKEN, cursor.getLong(0)); |
| |
| double latitude = cursor.getDouble(1); |
| double longitude = cursor.getDouble(2); |
| // 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 context.getContentResolver().insert(Images.Media.EXTERNAL_CONTENT_URI, values); |
| } |
| } |