| /* |
| * Copyright (C) 2013 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.crop; |
| |
| import android.content.ContentResolver; |
| import android.content.ContentValues; |
| import android.content.Context; |
| import android.database.Cursor; |
| import android.database.sqlite.SQLiteException; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.graphics.Rect; |
| import android.net.Uri; |
| import android.os.Environment; |
| import android.provider.MediaStore; |
| 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 java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.sql.Date; |
| import java.text.SimpleDateFormat; |
| |
| /** |
| * This class contains static methods for loading a bitmap and |
| * maintains no instance state. |
| */ |
| public abstract class CropLoader { |
| public static final String LOGTAG = "CropLoader"; |
| public static final String JPEG_MIME_TYPE = "image/jpeg"; |
| |
| private static final String TIME_STAMP_NAME = "'IMG'_yyyyMMdd_HHmmss"; |
| public static final String DEFAULT_SAVE_DIRECTORY = "EditedOnlinePhotos"; |
| |
| /** |
| * Returns the orientation of image at the given URI as one of 0, 90, 180, |
| * 270. |
| * |
| * @param uri URI of image to open. |
| * @param context context whose ContentResolver to use. |
| * @return the orientation of the image. Defaults to 0. |
| */ |
| public static int getMetadataRotation(Uri uri, Context context) { |
| if (uri == null || context == null) { |
| throw new IllegalArgumentException("bad argument to getScaledBitmap"); |
| } |
| if (ContentResolver.SCHEME_FILE.equals(uri.getScheme())) { |
| String mimeType = context.getContentResolver().getType(uri); |
| if (mimeType != JPEG_MIME_TYPE) { |
| return 0; |
| } |
| String path = uri.getPath(); |
| int orientation = 0; |
| ExifInterface exif = new ExifInterface(); |
| try { |
| exif.readExif(path); |
| orientation = ExifInterface.getRotationForOrientationValue( |
| exif.getTagIntValue(ExifInterface.TAG_ORIENTATION).shortValue()); |
| } catch (IOException e) { |
| Log.w(LOGTAG, "Failed to read EXIF orientation", e); |
| } |
| return orientation; |
| } |
| Cursor cursor = null; |
| try { |
| cursor = context.getContentResolver().query(uri, |
| new String[] { MediaStore.Images.ImageColumns.ORIENTATION }, |
| null, null, null); |
| if (cursor.moveToNext()) { |
| int ori = cursor.getInt(0); |
| return (ori < 0) ? 0 : ori; |
| } |
| } catch (SQLiteException e) { |
| return 0; |
| } catch (IllegalArgumentException e) { |
| return 0; |
| } finally { |
| Utils.closeSilently(cursor); |
| } |
| return 0; |
| } |
| |
| /** |
| * Gets a bitmap at a given URI that is downsampled so that both sides are |
| * smaller than maxSideLength. The Bitmap's original dimensions are stored |
| * in the rect originalBounds. |
| * |
| * @param uri URI of image to open. |
| * @param context context whose ContentResolver to use. |
| * @param maxSideLength max side length of returned bitmap. |
| * @param originalBounds set to the actual bounds of the stored bitmap. |
| * @return downsampled bitmap or null if this operation failed. |
| */ |
| public static Bitmap getConstrainedBitmap(Uri uri, Context context, int maxSideLength, |
| Rect originalBounds) { |
| if (maxSideLength <= 0 || originalBounds == null || uri == null || context == null) { |
| throw new IllegalArgumentException("bad argument to getScaledBitmap"); |
| } |
| InputStream is = null; |
| try { |
| // Get width and height of stored bitmap |
| is = context.getContentResolver().openInputStream(uri); |
| BitmapFactory.Options options = new BitmapFactory.Options(); |
| options.inJustDecodeBounds = true; |
| BitmapFactory.decodeStream(is, null, options); |
| int w = options.outWidth; |
| int h = options.outHeight; |
| originalBounds.set(0, 0, w, h); |
| |
| // If bitmap cannot be decoded, return null |
| if (w <= 0 || h <= 0) { |
| return null; |
| } |
| |
| options = new BitmapFactory.Options(); |
| |
| // Find best downsampling size |
| int imageSide = Math.max(w, h); |
| options.inSampleSize = 1; |
| if (imageSide > maxSideLength) { |
| int shifts = 1 + Integer.numberOfLeadingZeros(maxSideLength) |
| - Integer.numberOfLeadingZeros(imageSide); |
| options.inSampleSize <<= shifts; |
| } |
| |
| // Make sure sample size is reasonable |
| if (options.inSampleSize <= 0 || |
| 0 >= (int) (Math.min(w, h) / options.inSampleSize)) { |
| return null; |
| } |
| |
| // Decode actual bitmap. |
| options.inMutable = true; |
| is.close(); |
| is = context.getContentResolver().openInputStream(uri); |
| return BitmapFactory.decodeStream(is, null, options); |
| } catch (FileNotFoundException e) { |
| Log.e(LOGTAG, "FileNotFoundException: " + uri, e); |
| } catch (IOException e) { |
| Log.e(LOGTAG, "IOException: " + uri, e); |
| } finally { |
| Utils.closeSilently(is); |
| } |
| return null; |
| } |
| |
| /** |
| * Gets a bitmap that has been downsampled using sampleSize. |
| * |
| * @param uri URI of image to open. |
| * @param context context whose ContentResolver to use. |
| * @param sampleSize downsampling amount. |
| * @return downsampled bitmap. |
| */ |
| public static Bitmap getBitmap(Uri uri, Context context, int sampleSize) { |
| if (uri == null || context == null) { |
| throw new IllegalArgumentException("bad argument to getScaledBitmap"); |
| } |
| InputStream is = null; |
| try { |
| is = context.getContentResolver().openInputStream(uri); |
| BitmapFactory.Options options = new BitmapFactory.Options(); |
| options.inMutable = true; |
| options.inSampleSize = sampleSize; |
| return BitmapFactory.decodeStream(is, null, options); |
| } catch (FileNotFoundException e) { |
| Log.e(LOGTAG, "FileNotFoundException: " + uri, e); |
| } finally { |
| Utils.closeSilently(is); |
| } |
| return null; |
| } |
| |
| // TODO: Super gnarly (copied from SaveCopyTask.java), do cleanup. |
| |
| public static File getFinalSaveDirectory(Context context, Uri sourceUri) { |
| File saveDirectory = getSaveDirectory(context, sourceUri); |
| if ((saveDirectory == null) || !saveDirectory.canWrite()) { |
| saveDirectory = new File(Environment.getExternalStorageDirectory(), |
| DEFAULT_SAVE_DIRECTORY); |
| } |
| // Create the directory if it doesn't exist |
| if (!saveDirectory.exists()) |
| saveDirectory.mkdirs(); |
| return saveDirectory; |
| } |
| |
| |
| |
| public static String getNewFileName(long time) { |
| return new SimpleDateFormat(TIME_STAMP_NAME).format(new Date(time)); |
| } |
| |
| public static File getNewFile(Context context, Uri sourceUri, String filename) { |
| File saveDirectory = getFinalSaveDirectory(context, sourceUri); |
| return new File(saveDirectory, filename + ".JPG"); |
| } |
| |
| private interface ContentResolverQueryCallback { |
| |
| void onCursorResult(Cursor cursor); |
| } |
| |
| 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]; |
| } |
| |
| 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); |
| } |
| |
| public static Uri makeAndInsertUri(Context context, Uri sourceUri) { |
| long time = System.currentTimeMillis(); |
| String filename = getNewFileName(time); |
| File file = getNewFile(context, sourceUri, filename); |
| return insertContent(context, sourceUri, file, filename, time); |
| } |
| } |