Quartz Composer / 'Signal'としてのイベント

XcodeでQuartz Composer Applicationを選択

Introduction.qtzを編集

CounterのInputを３つともPublish.

AppController.hを編集

#import <Cocoa/Cocoa.h>
#import <Quartz/Quartz.h>
@interface AppController : NSObject 
{
    IBOutlet QCView* qcView;
}
- (IBAction)increase:(id)sender;
- (IBAction)decrease:(id)sender;
- (IBAction)reset:(id)sender;
@end

AppController.mを編集

#import "AppController.h"
@implementation AppController
 
- (void) awakeFromNib
{
 if(![qcView loadCompositionFromFile:[[NSBundle mainBundle] pathForResource:@"Introduction" ofType:@"qtz"]]) {
  NSLog(@"Could not load composition");
 }
}

- (void)windowWillClose:(NSNotification *)notification 
{
 [NSApp terminate:self];
}

- (IBAction)increase:(id)sender
{
 [qcView setValue:[NSNumber numberWithBool:YES] forInputKey:@"Increasing_Signal"];
 [self performSelector:@selector(endEvent:) withObject:nil afterDelay:0.1];
}
- (IBAction)decrease:(id)sender
{
 [qcView setValue:[NSNumber numberWithBool:YES] forInputKey:@"Decreasing_Signal"];
 [self performSelector:@selector(endEvent:) withObject:nil afterDelay:0.1];
}
- (IBAction)reset:(id)sender
{
 [qcView setValue:[NSNumber numberWithBool:YES] forInputKey:@"Reset_Signal"];
 [self performSelector:@selector(endEvent:) withObject:nil afterDelay:0.1];
}
- (void)endEvent:(id)obj
{
 [qcView setValue:[NSNumber numberWithBool:NO] forInputKey:@"Increasing_Signal"];
 [qcView setValue:[NSNumber numberWithBool:NO] forInputKey:@"Decreasing_Signal"];
 [qcView setValue:[NSNumber numberWithBool:NO] forInputKey:@"Reset_Signal"];
}
@end

MainMenu.xibを編集

'+'をAppControllerのincrease, '-'をAppControllerのdecrease, 'Clear'をAppControllerのresetへ接続．

結果

とりあえず動いたけどパルス的なSignalってこうやっていれるしか無いのかしら？
サンプル探せばもっと賢いのがあるんだろうなぁ…。