/*

File: QTMovieExtensions.m

Abstract: Our custom utility extensions to the QTMovie class

Version: <1.0>

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*/ 

#import "QTMovieExtensions.h"

@implementation QTMovie (QTMovieExtensions)

    // returns YES if the movie is currently playing, NO if not

-(BOOL)isPlaying

{

    if ([self rate] == 0)

    {

        return NO;

    }

    return YES;

}

    // return the movie duration as a string

-(NSString *)durationAsString

{

    QTTime durationQTTime = [self duration];

    long long durationInSeconds = durationQTTime.timeValue/durationQTTime.timeScale;

    long long durationInMinutes = durationInSeconds/60;

    long long durationInHours = durationInMinutes/60;

    return ([NSString stringWithFormat:@"%qi:%qi:%qi" , 

                                durationInHours, 

                                    durationInMinutes, 

                                        durationInSeconds]);

}

    // return the movie's current play time

-(QTTime)currentPlayTime

{

    NSValue *attribute = [self attributeForKey:QTMovieCurrentTimeAttribute];

    QTTime movieTime = [attribute QTTimeValue];

    return (movieTime);

}

    // set the movie's current time

-(void)setTime:(int)timeValue

{

    QTTime movieQTTime;

    NSValue *valueForQTTime;

    [self timeToQTTime:timeValue resultTime:&movieQTTime];

    valueForQTTime = [NSValue valueWithQTTime:movieQTTime];

    [self setAttribute:valueForQTTime forKey:QTMovieCurrentTimeAttribute];

}

    // return the movie's current (non-playing) time

-(double)currentTimeValue

{

    QTTime time = [self currentTime];

    return(time.timeValue);

}

    // returns YES if the movie's current time is the movie end,

    // NO if not

-(BOOL)currentTimeEqualsDuration

{   

    QTTime movDuration = [self duration];

    QTTime curTime = [self currentTime];

    if (QTTimeCompare(movDuration,curTime) == NSOrderedSame)

    {

        return YES;

    }

    return NO;

}

    // returns the movie's poster image - return a generic image

    // if there isn't one

-(NSImage *)posterImage

{

    NSImage *moviePosterImage = nil;

    moviePosterImage = [self posterImage];

    // create a dummy poster image if none exists

    if (nil == moviePosterImage)

    {

        moviePosterImage = [self currentFrameImage];

    }

    if (!moviePosterImage) goto bail;

    // set a poster name if none exists

    if (![moviePosterImage name])

    {

        NSString *aName = [self movieFileName];

        if (aName)

        {

            [moviePosterImage setName:aName];

        }

        else

        {

            [moviePosterImage setName:@"<no name>"];

        }

    }

bail:

    return moviePosterImage;

}

    // convert a time value (long) to a QTTime structure

-(void)timeToQTTime:(long)timeValue resultTime:(QTTime *)aQTTime

{

    NSNumber *timeScaleObj;

    long timeScaleValue;

    timeScaleObj = [self attributeForKey:QTMovieTimeScaleAttribute];

    timeScaleValue = [timeScaleObj longValue];

    *aQTTime = QTMakeTime(timeValue, timeScaleValue);

}

    // return the movie file path

-(NSString *)movieFilePath

{

    return ([self attributeForKey:QTMovieFileNameAttribute]);

}

    // return the movie file name

-(NSString *)movieFileName

{

    return ([self filenameFromFullPath:[self movieFilePath]]);

}

    // returns the movie's filename specified by the full path

- (NSString *)filenameFromFullPath:(NSString *)fullPath

{

    NSArray *pathComponents = [fullPath componentsSeparatedByString:@"/"];

    return ([pathComponents objectAtIndex:([pathComponents count] - 1)]);

}

@end