Creating a NSView from a CGPath

Question

I have a CGPath and I want to draw it once to a NSView. Seems relatively simple but I haven't found a way in AppKit (non iphone).

Answer 1

Inside -drawRect:, You use CGContextAddPath to add it to a context, and use CGContext(Draw|Fill|Stroke)Path to draw it. I.e. you subclass NSView, and override

- (void)drawRect:(NSRect)needsDisplayInRect
{
    CGContextRef cgcontext = [[NSGraphicsContext currentContext] graphicsPort];
    CGContextAddPath(cgcontext,path); // assumes you have CGPathRef*path;
    CGContextStrokePath(cgcontext);
}

Then -drawRect: will be called whenever appropriate. You can force the view to update by calling [view displayIfNeeded].