在NSDocument
子类中,具有此功能:
override func printOperationWithSettings(printSettings: [String : AnyObject]) throws -> NSPrintOperation {
let printInfo: NSPrintInfo = self.printInfo
var pageSize = printInfo.paperSize
pageSize.width -= printInfo.leftMargin + printInfo.rightMargin
pageSize.height -= printInfo.topMargin + printInfo.bottomMargin
pageSize.width = pageSize.width * 2
pageSize.height = pageSize.height * 2
let myPage = MyPage(frame: CGRect(origin: CGPoint(x: 0, y: 0), size: pageSize))
let printOperation = NSPrintOperation(view: myPage, printInfo: printInfo)
return printOperation
}
对于此测试,MyPage是一个只绘制椭圆的NSView
子类。
class MyPage: NSView {
override var flipped: Bool {
return true
}
override func drawRect(dirtyRect: NSRect) {
super.drawRect(dirtyRect)
NSColor.greenColor().set() // choose color
let figure = NSBezierPath() // container for line(s)
figure.appendBezierPathWithOvalInRect(self.frame)
figure.stroke() // draw line(s)
}
}
我希望这在打印面板中显示四页,但它只显示两页,相当于椭圆形的左上角和左下角。无论我创建myPage的框架有多宽,都只显示最左边的页面。有什么想法吗?谢谢!