macOS Core Animation -- Nothing Appears

[Blakeasd]

Hello,

I am attempting to draw this plane with Core Animation:

(without the black background, however).

This is the code in my custom NSView:

- (id)initWithFrame:(NSRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        [self A_singlePlane];
    }
    return self;
}

-(void)A_singlePlane{
    CALayer *container = [CALayer layer];
    container.frame = CGRectMake(0, 0, self.frame.size.width, self.frame.size.height);
    [self.layer addSublayer:container];
    
    CALayer *purpleLayer = [self addPlaneToLayer:container size:CGSizeMake(100, 100) position:CGPointMake(100, 100) color:[NSColor purpleColor]];
    
    CATransform3D t = CATransform3DIdentity;
    t = CATransform3DRotate(t, 45.0f * M_PI / 180.f, 0, 1, 0);
    purpleLayer.transform = t;
   
}

-(CALayer *)addPlaneToLayer:(CALayer* )container size:(CGSize)size position:(CGPoint)point color:(NSColor *)color{

    CALayer *plane = [CALayer layer];
    
    plane.backgroundColor = [color CGColor];
    plane.opacity = 0.6;
    plane.frame = CGRectMake(point.x, point.y, size.width, size.height);
    plane.borderColor = [[NSColor colorWithWhite:1.0 alpha:0.5] CGColor];
    plane.borderWidth = 3.0;
    plane.cornerRadius = 10.0;
    [container addSublayer:plane];
   
    return plane;
}

I have a view in interface builder with the class set as my custom NSView class. My custom view is set to have a layer. The result is a blank NSWindow. I do not receive any errors or warnings.


Does anyone see where my logical flaw is?

Thanks!

 

[gnasher729]

Time to use the debugger... For example, what is the frame in the initialisation? Does your view actually get added to a superview?

Surely you started with something simple that worked, then added things and checked at every step. What was the last version of the code that worked?

 

[Blakeasd]

I ended up fixing it by adding:

self.wantsLayer = YES;

Apparently the checkbox in Interface Builder for adding a layer is not the same as writing it out in Objective-C?