content: /*
   * Copyright (C) 2012 Lightbox
   *
   * 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.zhaojian.jolly.utils;
  
  import java.io.IOException;
  
  import android.app.Activity;
  import android.database.Cursor;
  import android.media.ExifInterface;
  import android.net.Uri;
  import android.provider.MediaStore;
  
  /** 
   * MediaUtils 
   * @author Nilesh Patel
   */
  public class MediaUtils {
  	/** Used to tag logs */
  	@SuppressWarnings("unused")
  	private static final String TAG = "MediaUtils";
  	
  	public static String getPath(Activity activity, Uri uri) {
  	    String[] projection = { MediaStore.Images.Media.DATA };
  	    Cursor cursor = activity.managedQuery(uri, projection, null, null, null);
  	    activity.startManagingCursor(cursor);
  	    int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
  	    cursor.moveToFirst();
  	    return cursor.getString(column_index);
  	}
  	
  	public static int getExifOrientation(String filepath) {
  		int degree = 0;
  		ExifInterface exif = null;
  		try {
  			exif = new ExifInterface(filepath);
  		} catch (IOException ex) {
  			ex.printStackTrace();
  		}
  		if (exif != null) {
  			int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, -1);
  			if (orientation != -1) {
  				// We only recognise a subset of orientation tag values.
  				switch (orientation) {
  				case ExifInterface.ORIENTATION_ROTATE_90:
  					degree = 90;
  					break;
  				case ExifInterface.ORIENTATION_ROTATE_180:
  					degree = 180;
  					break;
  				case ExifInterface.ORIENTATION_ROTATE_270:
  					degree = 270;
  					break;
  				}
  
  			}
  		}
  		return degree;
  	}
  }
  