vertically aligning text in NSTableView row

Question

I have a small problem with NSTableView. When I am increasing height of a row in table, the text in it is aligned at top of row but I want to align it vertically centered!

Answer 1

@iphaaw's answer updated for Swift 4 (note I also added "Cell" on the end of the class name for clarity, which also needs to match the class name in Interface Builder):

import Foundation
import Cocoa

class VerticallyCenteredTextFieldCell : NSTextFieldCell {
    override func titleRect(forBounds theRect: NSRect) -> NSRect {
        var titleFrame = super.titleRect(forBounds: theRect)
        let titleSize = self.attributedStringValue.size
        titleFrame.origin.y = theRect.origin.y - 1.0 + (theRect.size.height - titleSize().height) / 2.0
        return titleFrame
    }

    override func drawInterior(withFrame cellFrame: NSRect, in controlView: NSView) {
        let titleRect = self.titleRect(forBounds: cellFrame)
        self.attributedStringValue.draw(in: titleRect)
    }
}