如何使用 Swift playground 用一些绘图来显示 NSView? [英] How to use Swift playground to display NSView with some drawing?

问题描述

基本上我想在 NSView 的 Swift 游乐场中测试图表绘制.

Basically I would like to test a chart drawing in a Swift playground in NSView.

推荐答案

这是我现在使用的:

class CustomView: NSView {
  init(frame: NSRect) {
    super.init(frame: frame)
  }
  override func drawRect(dirtyRect: NSRect) {
    color.setFill()
    NSRectFill(self.bounds)
    NSColor.yellowColor().setFill()
    var r = NSMakeRect(0, y, self.bounds.width, 5)
    NSRectFill(r)
  }

  var color = NSColor.greenColor()
  var y: CGFloat = 0
}
var view = CustomView(frame:
  NSRect(x: 0, y: 0, width: 300, height: 300))

view.color = NSColor.greenColor()
XCPShowView("chart", view)

for var i = 0; i < 100; ++i {
  view.y = CGFloat(i) // <- try click on a plus sign opposite this line to add it to timeline
}

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