import scala.swing._
import scala.swing.event._

object Text extends SimpleSwingApplication {

    def top = new MainFrame {

        title = "TextFields"

        val we = new Label { text = "wejście "}
        val wy = new Label { text = "wyjście "}
        var in = new TextField(10)
        var out = new TextField(10)

        out.editable = false
        contents = new GridPanel(2,2) {
            contents += we
            contents += in
            contents += wy
            contents += out
        }

        listenTo(in)

        reactions += {
            case EditDone(_) =>
            out.text = in.text
            in.text = ""
        }

        visible = true

    }
}

Text.top