从二维int数组生成NSImage

import Cocoa

func createNSImage(fromIntArray array: [[Int]]) -> NSImage? {
    let width = array[0].count
    let height = array.count
    
    let bitmapInfo = CGBitmapInfo(rawValue: CGImageAlphaInfo.none.rawValue)
    let context = CGContext(data: nil, width: width, height: height, bitsPerComponent: 8, bytesPerRow: width * 4, space: CGColorSpaceCreateDeviceRGB(), bitmapInfo: bitmapInfo.rawValue)
    
    if let context = context {
        for y in 0..<height {
            for x in 0..<width {
                let pixel = array[y][x]
                let red = CGFloat((pixel >> 16) & 0xFF) / 255.0
                let green = CGFloat((pixel >> 8) & 0xFF) / 255.0
                let blue = CGFloat(pixel & 0xFF) / 255.0
                let alpha = CGFloat(1.0)
                
                context.setFillColor(red: red, green: green, blue: blue, alpha: alpha)
                context.fill(CGRect(x: x, y: y, width: 1, height: 1))
            }
        }
        
        if let cgImage = context.makeImage() {
            return NSImage(cgImage: cgImage, size: NSSize(width: width, height: height))
        }
    }
    
    return nil
}

// 示例用法
let intArray: [[Int]] = [[0xFF0000, 0x00FF00, 0x0000FF],
                         [0xFFFF00, 0x00FFFF, 0xFF00FF],
                         [0x000000, 0xFFFFFF, 0x808080]]

if let image = createNSImage(fromIntArray: intArray) {
    // 在这里使用生成的NSImage对象
    // 例如，将其显示在一个NSImageView中
    let imageView = NSImageView(frame: NSRect(x: 0, y: 0, width: image.size.width, height: image.size.height))
    imageView.image = image
}