1/*
 2 Licensed to the Apache Software Foundation (ASF) under one
 3 or more contributor license agreements.  See the NOTICE file
 4 distributed with this work for additional information
 5 regarding copyright ownership.  The ASF licenses this file
 6 to you under the Apache License, Version 2.0 (the
 7 "License"); you may not use this file except in compliance
 8 with the License.  You may obtain a copy of the License at
 9
10 http://www.apache.org/licenses/LICENSE-2.0
11
12 Unless required by applicable law or agreed to in writing,
13 software distributed under the License is distributed on an
14 "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 KIND, either express or implied.  See the License for the
16 specific language governing permissions and limitations
17 under the License.
18 */
19
20#import <Foundation/Foundation.h>
21
22@interface CDVJpegHeaderWriter : NSObject {
23    NSDictionary * SubIFDTagFormatDict;
24    NSDictionary * IFD0TagFormatDict;
25}
26
27- (NSData*) spliceExifBlockIntoJpeg: (NSData*) jpegdata
28                      withExifBlock: (NSString*) exifstr;
29- (NSString*) createExifAPP1 : (NSDictionary*) datadict;
30- (NSString*) formattedHexStringFromDecimalNumber: (NSNumber*) numb 
31                                       withPlaces: (NSNumber*) width;
32- (NSString*) formatNumberWithLeadingZeroes: (NSNumber*) numb 
33                                 withPlaces: (NSNumber*) places;
34- (NSString*) decimalToUnsignedRational: (NSNumber*) numb
35                    withResultNumerator: (NSNumber**) numerator
36                  withResultDenominator: (NSNumber**) denominator;
37- (void) continuedFraction: (double) val
38          withFractionList: (NSMutableArray*) fractionlist 
39               withHorizon: (int) horizon;
40//- (void) expandContinuedFraction: (NSArray*) fractionlist;
41- (void) splitDouble: (double) val 
42         withIntComponent: (int*) rightside 
43         withFloatRemainder: (double*) leftside;
44- (NSString*) formatRationalWithNumerator: (NSNumber*) numerator
45                          withDenominator: (NSNumber*) denominator
46                               asSigned: (Boolean) signedFlag;
47- (NSString*) hexStringFromData : (NSData*) data;
48- (NSNumber*) numericFromHexString : (NSString *) hexstring;
49
50/*
51- (void) readExifMetaData : (NSData*) imgdata;
52- (void) spliceImageData : (NSData*) imgdata withExifData: (NSDictionary*) exifdata;
53- (void) locateExifMetaData : (NSData*) imgdata;
54- (NSString*) createExifAPP1 : (NSDictionary*) datadict;
55- (void) createExifDataString : (NSDictionary*) datadict;
56- (NSString*) createDataElement : (NSString*) element
57              withElementData: (NSString*) data
58              withExternalDataBlock: (NSDictionary*) memblock;
59- (NSString*) hexStringFromData : (NSData*) data;
60- (NSNumber*) numericFromHexString : (NSString *) hexstring;
61*/
62@end