Evaluate string width and return CGFloat (Swift, OSX)

This morning I’ve been working in a Swift function to detect the width of a given text and return a CGFloat.  I’ve not found that many examples on the web for OSX, so here you have what I’ve done in all of its glory: func evaluateStringWidth (textToEvaluate: String) -> CGFloat{     letfont = NSFont.userFontOfSize(NSFont.systemFontSize()) …