Simple windowed application: Difference between revisions

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@@ Line 1,614: / Line 1,614: @@
 =={{header|Scala}}==
+[[Category:Scala Implementations]]
-<lang scala>import scala.swing._
+{{libheader|Scala}}
-import scala.swing.event._
+<lang Scala>import scala.swing.{ BorderPanel, Button, Label, MainFrame, SimpleSwingApplication }
-import scala.swing.Swing._
+import scala.swing.event.ButtonClicked
 object SimpleApp extends SimpleSwingApplication {
   def top = new MainFrame {
-    var nClicks = 0
-    val button = new Button {
-      text = "click me"
-    }
-    val label = new Label {
-      text = "There have been no clicks yet"
-    }
     contents = new BorderPanel {
+      var nClicks = 0
+      val (button, label) = (new Button { text = "click me" },
+        new Label { text = "There have been no clicks yet" })
       layout(button) = BorderPanel.Position.South
       layout(label) = BorderPanel.Position.Center
+      listenTo(button)
-    }
+      reactions += {
+        case ButtonClicked(_) =>
-    preferredSize = ((300, 200): Dimension)
+          nClicks += 1
+          label.text = s"There have been ${nClicks} clicks"
-    listenTo(button)
-    reactions += {
+      }
-      case ButtonClicked(_) =>
-        nClicks += 1
-        label.text = "There have been %d clicks" format nClicks
     }
   }