// SWTApplication.scala
//
// Usage:
//    object HelloWorld extends SWTApplication
//      def createContents(parent: Shell) {
//        val layout = new FillLayout(SWT.VERTICAL)
//        parent.setLayout(layout)
//       
//        val fileLabel = new Label(parent, SWT.CENTER)
//        fileLabel.setText("hello world")
//      }
//    }
//
// Based on code from Bruce Eckel's _Thinking in Java_.

import org.eclipse.swt._
import org.eclipse.swt.widgets._
import org.eclipse.swt.layout._

trait SWTApplication {

  var width: Int = 300
  var height: Int = 300
  var name: String = "Default Application Name"

  def createContents(parent: Shell): Unit

  def main(args: Array[String]) {
    val display = new Display()
    val shell = new Shell(display)

    shell.setText(name)
    createContents(shell)
    shell.setSize(width, height)
    shell.open()

    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep()
    }
    display.dispose()
  }
}