/* 
   QTTime.h

   mySTEP QTKit Library

   Author:	H. N. Schaller <hns@computer.org>
   Date:	Nov 2006

   This file is part of the mySTEP Library and is provided
   under the terms of the GNU Library General Public License.
*/ 

#ifndef _mySTEP_H_QTTime
#define _mySTEP_H_QTTime

#import <Cocoa/Cocoa.h>

typedef struct _QTTime
{
 	long long	timeValue;
	long		timeScale;
	long		flags;
} QTTime;

enum _QTTimeFlags
{
	kQTTimeIsIndefinite = 1
};

BOOL QTGetTimeInterval(QTTime t, NSTimeInterval *ti);
// BOOL QTGetTimeRecord(QTTime t, TimeRecord *rec);
QTTime QTMakeTime(long long t, long scale);
QTTime QTMakeTimeScaled(QTTime t, long scale);
QTTime QTMakeTimeWithTimeInterval(NSTimeInterval t);
// QTTime QTMakeTimeWithTimeRecord(TimeRecord t);
OSType QTOSTypeForString(NSString *str);
NSString *QTStringForOSType(OSType t);
NSString *QTStringFromTime(QTTime t);
NSComparisonResult QTTimeCompare(QTTime t1, QTTime t2);
QTTime QTTimeDecrement(QTTime t, QTTime dec);
QTTime QTTimeFromString(NSString *str);
QTTime QTTimeIncrement(QTTime t, QTTime inc);

@interface NSCoder (QTTime)
- (QTTime) decodeQTTimeForKey:(NSString *) key;
- (void) encodeQTTime:(QTTime) time forKey:(NSString *) key;
@end

@interface NSValue (QTTime)
+ (NSValue *) valueWithQTTime:(QTTime) time;
- (QTTime) QTTimeValue;
@end

#endif /* _mySTEP_H_QTTime */