ScalaSwing.scala

import swing._
import swing.event._

/**
 * http://d.hatena.ne.jp/xibbar/20081203#1228294818
 */
object SimpleGui1B extends SimpleGUIApplication {
  def top = new MainFrame {
    title = "SimpleGui1B"
    contents = new Button {
      text = "click me"
      reactions += {
        case ButtonClicked(_) => 
          text = "I've been clicked!"
      }
    }
    size = (300, 300)
  }
}

/**
 * http://d.hatena.ne.jp/xibbar/20081222#1229916350
 */
object SimplePaint extends SimpleGUIApplication{
  def top = new MainFrame {
    title = "SimplePaint"
    contents = new Panel {
      implicit def d2i(d:Double):Int = d.toInt
      listenTo(Mouse.clicks, Mouse.moves)
      var p0:java.awt.Point = null
      reactions += {
        case MousePressed(_, point, _, _, _) => p0 = point
        case MouseDragged(_, point, _) => {
          peer.getGraphics.drawLine(p0.getX, p0.getY, 
                                    point.getX, point.getY)
          p0 = point
        }
      }
    }
    size = (350, 250)
  }
}

/**
 * http://d.hatena.ne.jp/xibbar/20081224#1229916350
 */
import java.io.File
import javax.swing.ImageIcon
import FileChooser.SelectionMode._
import FileChooser.Result._
object JFileChooserSample extends SimpleGUIApplication{
  def top = new MainFrame {
    title = "JFileChooserSample"
    
    val label = new Label
    
    menuBar = new MenuBar {
      contents += new Menu("File") {
        contents += new MenuItem(Action("Open Image File...") {
          val fc = new FileChooser(new File(".")){
            fileSelectionMode = FilesOnly
            title = "Select Image"  
          }
          fc.showOpenDialog(label) match {
            case Approve =>
              val file = fc.selectedFile.getAbsolutePath
              label.icon = new ImageIcon(file)
            case _ =>
          }
        })
      }
    }
    
    contents = new BorderPanel {
      add(label, BorderPanel.Position.Center)
    }
    
    size = (350, 300)
  }
}