QuickTime Kit Programming Guide - filibeto.org

C H A P T E R 4
Adding New Capabilities to the QTKitPlayer Application
2. Next, you want to add these initializations for your movie drawer items. Insert these lines:
-(void)awakeFromNib
{
// initialize movie drawer items
[self setDurationDisplay];
[self setNormalSizeDisplay];
[self setCurrentSizeDisplay];
[self setSource:[self fileName]];
}
3. You want to return the mDrawer instance variable. Insert these lines before you add your setters,
in a block identified as Getters:
- (id)drawer
{
return mDrawer;
}
4. Now you want to add the following block of code, which enables you to read the movie. This is
also where you install the movie action callback. Add these lines:
- (BOOL)readFromFile:(NSString *)fileName ofType:(NSString *)type
{
BOOLsuccess = NO;
// read the movie
if ([QTMovie canInitWithFile:fileName])
{
if ([type isEqualTo:@"MovieDocumentData"])
{
NSData*data = [NSData dataWithContentsOfFile:fileName];
[self setMovie:[QTMovie movieWithData:data error:nil]];
}
else
{
[self setMovie:((QTMovie *)[QTMovie movieWithFile:fileName
error:nil])];
}
}
}
success = (mMovie != nil);
if (success)
{
[self installMovieIdleCallback];
}
return success;
5. Next, you need to install a movie controller action filter. If the movie is successfully created, the
callback is installed. To get the controller from the movie and set the movie control filter, add
this block of code:
-(void)installMovieIdleCallback
{
74 Adding Code To Your QTKitPlayer Project
2005-11-09 | © 2004, 2005 Apple Computer, Inc. All Rights Reserved.