| /* |
| * 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.filtershow.tools; |
| |
| import android.content.ContentResolver; |
| import android.content.ContentValues; |
| import android.content.Context; |
| import android.database.Cursor; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| 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.util.Log; |
| |
| import com.android.gallery3d.common.Utils; |
| import com.android.gallery3d.exif.ExifInterface; |
| import com.android.gallery3d.filtershow.cache.CachingPipeline; |
| import com.android.gallery3d.filtershow.cache.ImageLoader; |
| import com.android.gallery3d.filtershow.filters.FiltersManager; |
| import com.android.gallery3d.filtershow.presets.ImagePreset; |
| import com.android.gallery3d.util.XmpUtilHelper; |
| |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.sql.Date; |
| import java.text.SimpleDateFormat; |
| import java.util.TimeZone; |
| |
| /** |
| * Asynchronous task for saving edited photo as a new copy. |
| */ |
| public class SaveCopyTask extends AsyncTask<ImagePreset, Void, Uri> { |
| |
| private static final String LOGTAG = "SaveCopyTask"; |
| |
| /** |
| * 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 final File destinationFile; |
| |
| public SaveCopyTask(Context context, Uri sourceUri, File destination, Callback callback) { |
| this.context = context; |
| this.sourceUri = sourceUri; |
| this.callback = callback; |
| |
| if (destination == null) { |
| this.destinationFile = getNewFile(context, sourceUri); |
| } else { |
| this.destinationFile = destination; |
| } |
| |
| saveFileName = new SimpleDateFormat(TIME_STAMP_NAME).format(new Date( |
| System.currentTimeMillis())); |
| } |
| |
| public static File getFinalSaveDirectory(Context context, Uri sourceUri) { |
| File saveDirectory = getSaveDirectory(context, sourceUri); |
| if ((saveDirectory == null) || !saveDirectory.canWrite()) { |
| saveDirectory = new File(Environment.getExternalStorageDirectory(), |
| ImageLoader.DEFAULT_SAVE_DIRECTORY); |
| } |
| // Create the directory if it doesn't exist |
| if (!saveDirectory.exists()) |
| saveDirectory.mkdirs(); |
| return saveDirectory; |
| } |
| |
| public static File getNewFile(Context context, Uri sourceUri) { |
| File saveDirectory = getFinalSaveDirectory(context, sourceUri); |
| String filename = new SimpleDateFormat(TIME_STAMP_NAME).format(new Date( |
| System.currentTimeMillis())); |
| return new File(saveDirectory, filename + ".JPG"); |
| } |
| |
| public Object getPanoramaXMPData(Uri source, ImagePreset preset) { |
| Object xmp = null; |
| if (preset.isPanoramaSafe()) { |
| InputStream is = null; |
| try { |
| is = context.getContentResolver().openInputStream(source); |
| xmp = XmpUtilHelper.extractXMPMeta(is); |
| } catch (FileNotFoundException e) { |
| Log.w(LOGTAG, "Failed to get XMP data from image: ", e); |
| } finally { |
| Utils.closeSilently(is); |
| } |
| } |
| return xmp; |
| } |
| |
| public boolean putPanoramaXMPData(File file, Object xmp) { |
| if (xmp != null) { |
| return XmpUtilHelper.writeXMPMeta(file.getAbsolutePath(), xmp); |
| } |
| return false; |
| } |
| |
| public ExifInterface getExifData(Uri source) { |
| ExifInterface exif = new ExifInterface(); |
| String mimeType = context.getContentResolver().getType(sourceUri); |
| if (mimeType == ImageLoader.JPEG_MIME_TYPE) { |
| InputStream inStream = null; |
| try { |
| inStream = context.getContentResolver().openInputStream(source); |
| exif.readExif(inStream); |
| } catch (FileNotFoundException e) { |
| Log.w(LOGTAG, "Cannot find file: " + source, e); |
| } catch (IOException e) { |
| Log.w(LOGTAG, "Cannot read exif for: " + source, e); |
| } finally { |
| Utils.closeSilently(inStream); |
| } |
| } |
| return exif; |
| } |
| |
| public boolean putExifData(File file, ExifInterface exif, Bitmap image) { |
| boolean ret = false; |
| try { |
| exif.writeExif(image, file.getAbsolutePath()); |
| ret = true; |
| } catch (FileNotFoundException e) { |
| Log.w(LOGTAG, "File not found: " + file.getAbsolutePath(), e); |
| } catch (IOException e) { |
| Log.w(LOGTAG, "Could not write exif: ", e); |
| } |
| return ret; |
| } |
| |
| /** |
| * The task should be executed with one given bitmap to be saved. |
| */ |
| @Override |
| protected Uri doInBackground(ImagePreset... params) { |
| // TODO: Support larger dimensions for photo saving. |
| if (params[0] == null || sourceUri == null) { |
| return null; |
| } |
| ImagePreset preset = params[0]; |
| BitmapFactory.Options options = new BitmapFactory.Options(); |
| Uri uri = null; |
| boolean noBitmap = true; |
| int num_tries = 0; |
| // Stopgap fix for low-memory devices. |
| while (noBitmap) { |
| try { |
| // Try to do bitmap operations, downsample if low-memory |
| Bitmap bitmap = ImageLoader.loadMutableBitmap(context, sourceUri, options); |
| if (bitmap == null) { |
| return null; |
| } |
| CachingPipeline pipeline = new CachingPipeline(FiltersManager.getManager(), "Saving"); |
| bitmap = pipeline.renderFinalImage(bitmap, preset); |
| |
| Object xmp = getPanoramaXMPData(sourceUri, preset); |
| ExifInterface exif = getExifData(sourceUri); |
| |
| // Set tags |
| long time = System.currentTimeMillis(); |
| exif.addDateTimeStampTag(ExifInterface.TAG_DATE_TIME, time, |
| TimeZone.getDefault()); |
| exif.setTag(exif.buildTag(ExifInterface.TAG_ORIENTATION, |
| ExifInterface.Orientation.TOP_LEFT)); |
| |
| // Remove old thumbnail |
| exif.removeCompressedThumbnail(); |
| |
| // If we succeed in writing the bitmap as a jpeg, return a uri. |
| if (putExifData(this.destinationFile, exif, bitmap)) { |
| putPanoramaXMPData(this.destinationFile, xmp); |
| uri = insertContent(context, sourceUri, this.destinationFile, saveFileName, |
| time); |
| } |
| noBitmap = false; |
| } catch (java.lang.OutOfMemoryError e) { |
| // Try 5 times before failing for good. |
| if (++num_tries >= 5) { |
| throw e; |
| } |
| System.gc(); |
| options.inSampleSize *= 2; |
| } |
| } |
| return uri; |
| } |
| |
| @Override |
| protected void onPostExecute(Uri result) { |
| if (callback != null) { |
| callback.onComplete(result); |
| } |
| } |
| |
| private static void querySource(Context context, Uri sourceUri, 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 static File getSaveDirectory(Context context, Uri sourceUri) { |
| final File[] dir = new File[1]; |
| querySource(context, sourceUri, 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. |
| */ |
| public static Uri insertContent(Context context, Uri sourceUri, File file, String saveFileName, |
| long time) { |
| time /= 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, time); |
| values.put(Images.Media.DATE_MODIFIED, time); |
| values.put(Images.Media.DATE_ADDED, time); |
| values.put(Images.Media.ORIENTATION, 0); |
| values.put(Images.Media.DATA, file.getAbsolutePath()); |
| values.put(Images.Media.SIZE, file.length()); |
| |
| final String[] projection = new String[] { |
| ImageColumns.DATE_TAKEN, |
| ImageColumns.LATITUDE, ImageColumns.LONGITUDE, |
| }; |
| querySource(context, sourceUri, 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); |
| } |
| |
| } |