如何在NSView中旋转文本？(Mac OS、Cocoa、Swift)

class RotatedTextView: NSView {
    override func drawRect(dirtyRect: NSRect) {
        super.drawRect(dirtyRect)
        
        let text = "Hello, World!"
        let attributedString = NSAttributedString(string: text)
        
        let rotationAngle: CGFloat = 45.0 // 设置旋转角度
        
        let textRect = NSRect(x: 0, y: 0, width: bounds.width, height: bounds.height)
        let textContainer = NSTextContainer(containerSize: textRect.size)
        let layoutManager = NSLayoutManager()
        layoutManager.addTextContainer(textContainer)
        
        let textStorage = NSTextStorage(attributedString: attributedString)
        textStorage.addLayoutManager(layoutManager)
        
        let textOrigin = NSPoint(x: bounds.midX, y: bounds.midY) // 设置文本的中心点位置
        let textRotation = NSAffineTransform()
        textRotation.translateX(by: textOrigin.x, yBy: textOrigin.y)
        textRotation.rotate(byDegrees: rotationAngle)
        textRotation.translateX(by: -textOrigin.x, yBy: -textOrigin.y)
        
        let textBounds = layoutManager.usedRect(for: textContainer)
        let textFrame = NSRect(x: textOrigin.x - textBounds.width / 2, y: textOrigin.y - textBounds.height / 2, width: textBounds.width, height: textBounds.height)
        
        NSGraphicsContext.saveGraphicsState()
        textRotation.concat()
        layoutManager.drawGlyphs(forGlyphRange: layoutManager.glyphRange(for: textContainer), at: textFrame.origin)
        NSGraphicsContext.restoreGraphicsState()
    }
}

let rotatedTextView = RotatedTextView(frame: CGRect(x: 0, y: 0, width: 200, height: 200))
parentView.addSubview(rotatedTextView)