/*

File: MyNSSliderCell.m

Abstract: Code to manage our volume slider

Version: <1.0>

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*/ 

#import "MyNSSliderCell.h"

#import "QTMovieExtensions.h"

@implementation MyNSSliderCell

-(id)initWithValues:(NSTextField *)aTextField controller:(AppController *)aController

{

    if (self = [super init])

    {

        NSFont *font = [NSFont fontWithName:@"Helvetica" size:12.0];

        attrs = [NSMutableDictionary dictionary];

        [attrs setObject:font forKey:NSFontAttributeName];

        [attrs setObject:[NSColor greenColor] forKey:NSBackgroundColorAttributeName];

        userIsDraggingSlider = NO;

        continuePlayingAfterDrag = NO;

        myController = aController;

        movieTimeStringBox = aTextField;

        previousStringRect = NSMakeRect(0,0,0,0);

    }

    return (self);

}

    // NSCell invokes this method when tracking begins

- (BOOL)startTrackingAt:(NSPoint)startPoint inView:(NSView *)controlView

{

    MyQTMovie *curMovie = [myController currentPlayingMovie];

    [super startTrackingAt:startPoint inView:controlView];

    userIsDraggingSlider = YES;

    continuePlayingAfterDrag = NO;

        // if movie is currently playing, we'll want to continue

        // playing even after tracking finishes

    if ([curMovie isPlaying] == YES)

    {

        continuePlayingAfterDrag = YES;

        // stop movie playing while tracking happens...

        [curMovie stop];

    }

    return (YES);

}

    // NSCell invokes this method when the cursor has left the bounds

    // of the receiver or the mouse button goes up (in which case flag is YES).

- (void)stopTracking:(NSPoint)lastPoint at:(NSPoint)stopPoint inView:(NSView *)controlView mouseIsUp:(BOOL)flag

{

    [super stopTracking:lastPoint at:stopPoint inView:controlView mouseIsUp:flag];

    userIsDraggingSlider = NO;

    // if the movie was playing when the tracking started,

    // resume playing once tracking is done

    if (continuePlayingAfterDrag == YES)

    {

        [[myController currentPlayingMovie] play];

    }

}

    // return YES if user is currently dragging the slider, NO

    // if not

-(BOOL)isUserDraggingSlider

{

    return userIsDraggingSlider;

}

@end