Pan Tutorial

C4WorkSpace.m

//
//  C4WorkSpace.m
//  Pan Tutorial
//
//  Created by Travis Kirton.
//

#import "C4WorkSpace.h"

@implementation C4WorkSpace {
    C4Label *label;
}

-(void)setup {
    [self setupLabel];
    
    self.canvas.multipleTouchEnabled = YES;
    [self addGesture:PAN name:@"pan" action:@"move:"];
}

-(void)move:(UIPanGestureRecognizer *)recognizer {
    [label move:recognizer];
    
    if(recognizer.state == UIGestureRecognizerStateBegan) {
        NSInteger touchCount = recognizer.numberOfTouches;
        label.text = [NSString stringWithFormat:@"%d Touch Pan", touchCount];
        [label sizeToFit];
    } else if (recognizer.state == UIGestureRecognizerStateEnded) {
        label.animationDuration = 0.25f;
        label.text = @"I'm a Drag";
        [label sizeToFit];
        label.center = self.canvas.center;
    }
}

-(void)setupLabel {
    C4Font *font = [C4Font fontWithName:@"AvenirNextCondensed-Heavy" size:96];
    label = [C4Label labelWithText:@"I'm A Drag" font:font];
    label.center = self.canvas.center;
    label.userInteractionEnabled = NO;
    [self.canvas addLabel:label];
}

@end