MyController.m

/*
     File: MyController.m
 Abstract: 
 Abstract: The PictureTaker is a panel that allows users to choose and
 crop an image. It supports browsing of the file system and includes
 a recents popup-menu. The IKPictureTaker lets the user to crop a choosen
 image or to take snapshot from a camera like the built-in iSight. This
 Sample code demonstrate a very basic use of the PictureTaker to help
 developers getting started.
 
  Version: 1.1
 
 Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple
 Inc. ("Apple") in consideration of your agreement to the following
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 not agree with these terms, please do not use, install, modify or
 redistribute this Apple software.
 
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 MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
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 OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
 
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 */
 
 
#import "MyController.h"
 
 
 
@implementation MyController
 
/* Set the image for the PictureTaker */
-(void)setImageInputForPictureTaker:(IKPictureTaker *)pictureTaker
{
    //retrieve example image
    NSURL *picURL = nil;
    NSBundle *bundle = [NSBundle mainBundle];
    if (bundle)
    {
        NSString *picPath = [bundle pathForResource:@"picture" ofType:@"jpg"];
        if (picPath)
        {
            /* set a default image to start with */
            picURL = [NSURL fileURLWithPath:picPath];
            [pictureTaker setInputImage:[[[NSImage alloc] initByReferencingURL:picURL] autorelease]];
        }
    }
}
 
- (void) awakeFromNib
{
    /* retrieve the IKPictureTaker shared instance */
    IKPictureTaker *pictureTaker = [IKPictureTaker pictureTaker];
    
    /* set default image */
    [self setImageInputForPictureTaker:pictureTaker];
}
 
// -------------------------------------------------------------------------
//  launchPictureTaker
//
//  Called when the user presses the 'Open Picture Taker' button.
//  Gets the shared IKPictureTaker instance, sets a default image, configures
//  it to show effects, then launches the PictureTaker. 
// -------------------------------------------------------------------------
- (IBAction) launchPictureTaker:(id)sender
{
    /* retrieve the PictureTaker shared instance */
    IKPictureTaker *pictureTaker = [IKPictureTaker pictureTaker];
 
    /* set default image */
    [self setImageInputForPictureTaker:pictureTaker];
 
    /* configure the PictureTaker to show effects */
    [pictureTaker setValue:[NSNumber numberWithBool:YES] forKey:IKPictureTakerShowEffectsKey];
 
    /* other possible configurations (uncomments to try) */
    //[pictureTaker setValue:[NSNumber numberWithBool:NO] forKey:IKPictureTakerAllowsVideoCaptureKey];
    //[pictureTaker setValue:[NSNumber numberWithBool:NO] forKey:IKPictureTakerAllowsFileChoosingKey];
    //[pictureTaker setValue:[NSNumber numberWithBool:NO] forKey:IKPictureTakerShowRecentPictureKey];
    //[pictureTaker setValue:[NSNumber numberWithBool:NO] forKey:IKPictureTakerUpdateRecentPictureKey];
    //[pictureTaker setValue:[NSNumber numberWithBool:NO] forKey:IKPictureTakerAllowsEditingKey];
    //[pictureTaker setValue:[NSString stringWithString:@"Drop an Image Here"] forKey:IKPictureTakerInformationalTextKey];
    //[pictureTaker setValue:[NSValue valueWithSize:NSMakeSize(256,256)] forKey:IKPictureTakerOutputImageMaxSizeKey];
    //[pictureTaker setValue:[NSValue valueWithSize:NSMakeSize(100, 100)] forKey:IKPictureTakerCropAreaSizeKey];
 
    
    /* launch the PictureTaker as a panel */
    [pictureTaker beginPictureTakerWithDelegate:self didEndSelector:@selector(pictureTakerValidated:code:contextInfo:) contextInfo:nil];
}
 
#pragma mark -
#pragma mark delegate
 
// -------------------------------------------------------------------------
//  pictureTakerValidated:code:contextInfo:
//
//  Invoked when the PictureTaker terminates.
//  Retrieves the output image and sets it on the view
// -------------------------------------------------------------------------
- (void) pictureTakerValidated:(IKPictureTaker*) pictureTaker code:(int) returnCode contextInfo:(void*) ctxInf
{
    if(returnCode == NSOKButton){
        /* retrieve the output image */
        NSImage *outputImage = [pictureTaker outputImage];
 
        /* change the displayed image */
        [imageView setImage:outputImage];
    }
    else{
        /* the user canceled => nothing to do here */
    }
}
 
@end