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/*
* 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 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 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 albumName;
private final String saveFileName;
public SaveCopyTask(Context context, Uri sourceUri, Callback callback) {
this.context = context;
this.sourceUri = sourceUri;
this.callback = callback;
albumName = context.getString(R.string.edited_photo_bucket_name);
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;
}
Bitmap bitmap = params[0];
File file = save(bitmap);
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, albumName);
Toast toast = Toast.makeText(context, message, Toast.LENGTH_SHORT);
toast.setGravity(Gravity.CENTER, 0, 0);
toast.show();
callback.onComplete(result);
}
private File save(Bitmap bitmap) {
String directory = Environment.getExternalStorageDirectory().toString() + "/" + albumName;
return new BitmapUtils(context).saveBitmap(
bitmap, directory, saveFileName, Bitmap.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);
try {
if ((cursor != null) && cursor.moveToNext()) {
dateTaken = cursor.getLong(INDEX_DATE_TAKEN);
latitude = cursor.getDouble(INDEX_LATITUDE);
longitude = cursor.getDouble(INDEX_LONGITUDE);
}
} finally {
if (cursor != null) {
cursor.close();
}
}
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);
}
}
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