From ef488e9e397a045afe5ad6d2c2a4c6b4e8b1cdfa Mon Sep 17 00:00:00 2001
From: NAME <USER@epfl.ch>
Date: Wed, 26 Mar 2008 10:02:01 +0000
Subject: scala.swing update

---
 src/swing/scala/swing/AWTComponentWrapper.scala    |  3 -
 src/swing/scala/swing/BoxPanel.scala               | 11 ++++
 src/swing/scala/swing/Button.scala                 | 19 +++---
 src/swing/scala/swing/Component.scala              | 71 ++++++++++++++++------
 src/swing/scala/swing/ComponentList.scala          |  4 +-
 src/swing/scala/swing/Container.scala              | 46 +++++++++-----
 src/swing/scala/swing/Dimension.scala              | 18 +++++-
 src/swing/scala/swing/EditorComponent.scala        |  5 ++
 src/swing/scala/swing/EmptyBorder.scala            | 11 ++--
 src/swing/scala/swing/FlowPanel.scala              |  6 ++
 src/swing/scala/swing/Frame.scala                  | 41 +++++++++----
 src/swing/scala/swing/GridPanel.scala              | 14 +++++
 src/swing/scala/swing/IndexedPanel.scala           |  8 +++
 src/swing/scala/swing/Label.scala                  | 14 ++---
 src/swing/scala/swing/MainFrame.scala              |  9 ++-
 src/swing/scala/swing/Orientation.scala            | 47 ++++++++++++--
 src/swing/scala/swing/Panel.scala                  | 16 ++---
 src/swing/scala/swing/ProgressBar.scala            | 29 +++++++++
 src/swing/scala/swing/Publisher.scala              | 16 ++---
 src/swing/scala/swing/ScrollPane.scala             | 16 ++---
 src/swing/scala/swing/Showable.scala               | 12 ++++
 src/swing/scala/swing/SimpleGUIApplication.scala   |  7 +--
 src/swing/scala/swing/Slider.scala                 | 56 +++++++++++++----
 src/swing/scala/swing/Spreadsheet.scala            |  4 +-
 src/swing/scala/swing/Swing.scala                  | 35 +++++++++++
 src/swing/scala/swing/SwingComponent.scala         |  6 +-
 src/swing/scala/swing/Table.scala                  | 44 +++++++-------
 src/swing/scala/swing/TextComponent.scala          | 34 +++++++----
 src/swing/scala/swing/TextField.scala              | 27 ++++----
 src/swing/scala/swing/UIElement.scala              |  5 ++
 src/swing/scala/swing/event/ButtonPressed.scala    |  2 +-
 src/swing/scala/swing/event/CaretUpdate.scala      |  2 +-
 src/swing/scala/swing/event/CellModified.scala     |  2 +-
 src/swing/scala/swing/event/ComponentEvent.scala   |  3 +
 src/swing/scala/swing/event/ContentModified.scala  |  3 +
 src/swing/scala/swing/event/Event.scala            |  2 +-
 src/swing/scala/swing/event/TableChanged.scala     |  4 +-
 src/swing/scala/swing/event/TableResized.scala     |  4 +-
 src/swing/scala/swing/event/TextModified.scala     |  2 +-
 src/swing/scala/swing/event/WindowActivated.scala  |  2 +-
 src/swing/scala/swing/event/WindowClosed.scala     |  2 +-
 src/swing/scala/swing/event/WindowClosing.scala    |  2 +-
 .../scala/swing/event/WindowDeactivated.scala      |  2 +-
 .../scala/swing/event/WindowDeiconified.scala      |  2 +-
 src/swing/scala/swing/event/WindowEvent.scala      |  4 +-
 src/swing/scala/swing/event/WindowIconified.scala  |  2 +-
 src/swing/scala/swing/event/WindowOpened.scala     |  2 +-
 src/swing/scala/swing/layout.scala                 | 12 ----
 src/swing/scala/swing/test/CelsiusConverter.scala  | 21 +++----
 src/swing/scala/swing/test/CelsiusConverter2.scala | 18 +++---
 src/swing/scala/swing/test/HelloWorld.scala        |  9 ++-
 src/swing/scala/swing/test/SwingApp.scala          |  8 +--
 52 files changed, 496 insertions(+), 248 deletions(-)
 delete mode 100644 src/swing/scala/swing/AWTComponentWrapper.scala
 create mode 100644 src/swing/scala/swing/BoxPanel.scala
 create mode 100644 src/swing/scala/swing/EditorComponent.scala
 create mode 100644 src/swing/scala/swing/FlowPanel.scala
 create mode 100644 src/swing/scala/swing/GridPanel.scala
 create mode 100644 src/swing/scala/swing/IndexedPanel.scala
 create mode 100644 src/swing/scala/swing/ProgressBar.scala
 create mode 100644 src/swing/scala/swing/Showable.scala
 create mode 100644 src/swing/scala/swing/Swing.scala
 create mode 100644 src/swing/scala/swing/UIElement.scala
 create mode 100644 src/swing/scala/swing/event/ComponentEvent.scala
 create mode 100644 src/swing/scala/swing/event/ContentModified.scala
 delete mode 100644 src/swing/scala/swing/layout.scala

diff --git a/src/swing/scala/swing/AWTComponentWrapper.scala b/src/swing/scala/swing/AWTComponentWrapper.scala
deleted file mode 100644
index 9a140e5506..0000000000
--- a/src/swing/scala/swing/AWTComponentWrapper.scala
+++ /dev/null
@@ -1,3 +0,0 @@
-package swing;
-
-class AWTComponentWrapper(val acomponent: java.awt.Component) extends Component
diff --git a/src/swing/scala/swing/BoxPanel.scala b/src/swing/scala/swing/BoxPanel.scala
new file mode 100644
index 0000000000..0c7c1b90bd
--- /dev/null
+++ b/src/swing/scala/swing/BoxPanel.scala
@@ -0,0 +1,11 @@
+package swing
+
+class BoxPanel(orientation: Orientation)(content0: Component*) extends IndexedPanel {
+  override lazy val peer = {
+    val p = new javax.swing.JPanel
+    val l = new javax.swing.BoxLayout(p, orientation.peer)
+    p.setLayout(l)
+    p
+  }
+  content ++ content0
+}
diff --git a/src/swing/scala/swing/Button.scala b/src/swing/scala/swing/Button.scala
index 0f6d8dc056..5f945611c5 100644
--- a/src/swing/scala/swing/Button.scala
+++ b/src/swing/scala/swing/Button.scala
@@ -1,20 +1,21 @@
-package swing;
+package swing
 
 import javax.swing._
 import event._
 
 /** A class for buttons; standard constructor wraps around a swing button */
-class Button(val jbutton: JButton) extends Container(jbutton) with SwingComponent with Publisher {
+class Button(override val peer: JButton) extends Component with Publisher {
   def this(txt: String) = this(new JButton(txt))
-  def this() = this(new JButton())
-  def text: String = jbutton.getText()
-  def text_=(s: String) = jbutton.setText(s)
- 	def icon: Icon = jbutton.getIcon()
-  def icon_=(i: Icon) = jbutton.setIcon(i)
-  jbutton.addActionListener {
+  def this() = this(new JButton)
+  def text: String = peer.getText
+  def text_=(s: String) = peer.setText(s)
+  def icon: Icon = peer.getIcon
+  def icon_=(i: Icon) = peer.setIcon(i)
+  peer.addActionListener {
     new java.awt.event.ActionListener {
-      def actionPerformed(e: java.awt.event.ActionEvent): unit =
+      def actionPerformed(e: java.awt.event.ActionEvent) {
         publish(ButtonPressed(Button.this))
+      }
     }
   }
 }
diff --git a/src/swing/scala/swing/Component.scala b/src/swing/scala/swing/Component.scala
index 3a5c98d90b..a022340103 100644
--- a/src/swing/scala/swing/Component.scala
+++ b/src/swing/scala/swing/Component.scala
@@ -1,26 +1,61 @@
-package swing;
+package swing
 
-import javax.swing._;
-import java.awt._;
+import java.awt.Font
+import javax.swing.border.Border
 
-abstract class Component
-extends Object
-with Reactor
-{
-  val acomponent: java.awt.Component
+object Component {
+  val ClientKey = "scala.swingWrapper"
+  def wrapperFor[C<:Component](c: javax.swing.JComponent): C = c.getClientProperty(ClientKey).asInstanceOf[C]
+}
+
+abstract class Component extends UIElement with Showable.Swing with Reactor {
+  lazy val peer: javax.swing.JComponent = new javax.swing.JComponent {}
+  peer.putClientProperty(Component.ClientKey, this)
+
+  def minimumSize = peer.getMinimumSize
+  def minimumSize_=(x: Dimension) = peer.setMinimumSize(x.peer)
+  def maxiumumSize = peer.getMaximumSize
+  def maxiumumSize_=(x: Dimension) = peer.setMaximumSize(x.peer)
+  def preferredSize = peer.getPreferredSize
+  def preferredSize_=(x: Dimension) = peer.setPreferredSize(x.peer)
+
+  def xAlignment: Double = peer.getAlignmentX
+  def xAlignment_=(x: Double) = peer.setAlignmentX(x.toFloat)
+  def yAlignment: Double = peer.getAlignmentY
+  def yAlignment_=(x: Double) = peer.setAlignmentY(x.toFloat)
+
+  def foreground: Color = new Color(peer.getForeground)
+  def foreground_=(x: Color) = peer.setForeground(x)
+  def background: Color = new Color(peer.getBackground)
+  def background_=(x: Color) = peer.setBackground(x)
+  def border: Border = peer.getBorder
+  def border_=(x: Border) { peer.setBorder(x) }
 
-  def preferredSize = acomponent.getPreferredSize
-  def preferredSize_=(x: Dimension) = acomponent.setPreferredSize(x)
-  def preferredSize_=(xy: (Int, Int)) = acomponent.setPreferredSize(Dimension(xy._1, xy._2))
+  def font: Font = peer.getFont
+  def font_=(x: Font) = peer.setFont(x)
+  def opaque: Boolean = peer.isOpaque
+  def opaque_=(x: Boolean) = peer.setOpaque(x)
 
-  def foreground: Color = new Color(acomponent.getForeground)
-  def foreground_=(x: Color) = acomponent.setForeground(x)
+  def tooltip: String = peer.getToolTipText
+  def tooltip_=(t: String) = peer.setToolTipText(t)
 
-  def background: Color = new Color(acomponent.getBackground)
-  def background_=(x: Color) = acomponent.setBackground(x)
+  def inputVerifier: this.type => Boolean = { a =>
+    peer.getInputVerifier().verify(a.peer)
+  }
+  def inputVerifier_=(v: this.type => Boolean) {
+    peer.setInputVerifier(new javax.swing.InputVerifier {
+      def verify(c: javax.swing.JComponent) = v(Component.wrapperFor(c))
+    })
+  }
 
-  def font: Font = acomponent.getFont
-  def font_=(x: Font) = acomponent.setFont(x)
+  /*def verifyOnTraversal: (Component, Component) => Boolean = { a =>
+    peer.getInputVerifier().verify(a.peer)
+  }
+  def verifyOnTraversal_=(v: (Component, Component) => Boolean) {
+    peer.setInputVerifier(new javax.swing.InputVerifier {
+      def verify(c: javax.swing.JComponent) = v(Component.wrapperFor(c))
+    })
+  }*/
 
-  def show: this.type = { acomponent.setVisible(true); this }
+  override def toString = "scala.swing wrapper " + peer.toString
 }
diff --git a/src/swing/scala/swing/ComponentList.scala b/src/swing/scala/swing/ComponentList.scala
index 3876c84492..fe1a66a1c4 100644
--- a/src/swing/scala/swing/ComponentList.scala
+++ b/src/swing/scala/swing/ComponentList.scala
@@ -3,8 +3,8 @@ package swing
 import javax.swing._
 import event._
 
-class ComponentList(val jlist: JList) extends Container(jlist) with SwingComponent with Publisher {
-  def this() = this(new JList())
+class ComponentList(val jlist: JList) extends Container(jlist) with Publisher {
+  def this() = this(new JList)
   def this(elems: Seq[Object]) = this(new JList(elems.toArray))
 
   def fixedCellWidth = jlist.getFixedCellWidth
diff --git a/src/swing/scala/swing/Container.scala b/src/swing/scala/swing/Container.scala
index 12cbf11072..72cf15d440 100644
--- a/src/swing/scala/swing/Container.scala
+++ b/src/swing/scala/swing/Container.scala
@@ -1,19 +1,37 @@
-package swing;
+package swing
 
-import javax.swing._
-import scala.collection.mutable.ListBuffer
+import scala.collection.mutable.Buffer
 
-class Container(val jcontainer: java.awt.Container) extends Component {
-  val acomponent = jcontainer
-  def this() = this(new java.awt.Container())
-  val elems = new ListBuffer[Component]
-  def += (c: Component) = {
-    elems += c
-    jcontainer.add(c.acomponent)
-  }
-  def -= (c: Component) = {
-    elems -= c
-    jcontainer.remove(c.acomponent)
+abstract class Container(override val peer: javax.swing.JComponent) extends Component {
+  def this() = this(new javax.swing.JComponent {})
+  def content: Seq[Component] = new Content
+
+  protected class Content extends Buffer[Component] {
+    def wrap(c: java.awt.Component) = Component.wrapperFor(c.asInstanceOf[javax.swing.JComponent])
+    def clear = peer.removeAll()
+    def remove(n: Int): Component = {
+      val c = peer.getComponent(n)
+      peer.remove(n)
+      wrap(c)
+    }
+    def update(n: Int, c: Component) { peer.add(c.peer, n) }
+    def insertAll(n: Int, iter: Iterable[Component]) {
+      var i = n
+      for(el <- iter) {
+        peer.add(el.peer, i)
+        i += 1
+      }
+    }
+    def readOnly : RandomAccessSeq[Component] = new RandomAccessSeq[Component] {
+      def length = Content.this.length
+      def apply(idx : Int) = Content.this.apply(idx)
+      override def stringPrefix = Content.this.stringPrefix + "RO"
+    }
+    def +:(c: Component): Buffer[Component] = { update(0, c); this }
+    def +=(c: Component) { peer.add(c.peer); this }
+    def length = peer.getComponentCount
+    def elements = peer.getComponents.projection.map(wrap(_)).elements
+    def apply(n: Int) = wrap(peer.getComponent(n))
   }
 }
 
diff --git a/src/swing/scala/swing/Dimension.scala b/src/swing/scala/swing/Dimension.scala
index 2c1ebde994..85a2c0a841 100644
--- a/src/swing/scala/swing/Dimension.scala
+++ b/src/swing/scala/swing/Dimension.scala
@@ -1,5 +1,17 @@
-package swing;
+package swing
 
-case class Dimension(w: Int, h: Int) extends java.awt.Dimension(w, h) {
-  def this(dim: java.awt.Dimension) = this(dim.width, dim.height)
+object Dimension {
+  def apply(w: Int, h: Int) = new Dimension {
+    lazy val peer: java.awt.Dimension = new java.awt.Dimension(w, h)
+  }
+
+  def wrap(dim: java.awt.Dimension) = new Dimension {
+    def peer: java.awt.Dimension = dim
+  }
+}
+
+abstract class Dimension {
+  def peer: java.awt.Dimension
+  def width = peer.getWidth
+  def height = peer.getHeight
 }
diff --git a/src/swing/scala/swing/EditorComponent.scala b/src/swing/scala/swing/EditorComponent.scala
new file mode 100644
index 0000000000..e83dce3bc9
--- /dev/null
+++ b/src/swing/scala/swing/EditorComponent.scala
@@ -0,0 +1,5 @@
+package swing
+
+trait EditorComponent extends Component {
+  val contentModified: Publisher
+}
\ No newline at end of file
diff --git a/src/swing/scala/swing/EmptyBorder.scala b/src/swing/scala/swing/EmptyBorder.scala
index 4524f00fe3..0bbcc1e409 100644
--- a/src/swing/scala/swing/EmptyBorder.scala
+++ b/src/swing/scala/swing/EmptyBorder.scala
@@ -1,10 +1,9 @@
-package swing;
+package swing
 
-import javax.swing._
-
-class EmptyBorder(_top: int, _left: int, _bottom: int, _right: int)
-extends border.EmptyBorder(_top, _left, _bottom, _right) {
-  def this() = this(0, 0, 0, 0)
+object EmptyBorder {
+  def apply(top: int, left: int, bottom: int, right: int) =
+    new javax.swing.border.EmptyBorder(top, left, bottom, right)
+  def apply() = new javax.swing.border.EmptyBorder(0, 0, 0, 0)
 }
 
 
diff --git a/src/swing/scala/swing/FlowPanel.scala b/src/swing/scala/swing/FlowPanel.scala
new file mode 100644
index 0000000000..cd14c2e731
--- /dev/null
+++ b/src/swing/scala/swing/FlowPanel.scala
@@ -0,0 +1,6 @@
+package swing
+
+class FlowPanel(orientation: Orientation)(content0: Component*) extends IndexedPanel {
+  override lazy val peer = new javax.swing.JPanel(new java.awt.FlowLayout(orientation.peer))
+  content ++ content0
+}
diff --git a/src/swing/scala/swing/Frame.scala b/src/swing/scala/swing/Frame.scala
index fadd69d00c..d1ad443fe0 100644
--- a/src/swing/scala/swing/Frame.scala
+++ b/src/swing/scala/swing/Frame.scala
@@ -1,18 +1,33 @@
-package swing;
+package swing
 
-import javax.swing._;
-import event._;
+import javax.swing.JFrame
+import event._
 
-class Frame(val jframe: JFrame) extends Container(jframe) with Publisher {
-  def this() = this(new JFrame("Untitled Frame"))
-  def title: String = jframe.getTitle()
-  def title_=(s: String) = jframe.setTitle(s)
-  val contents = new Container(jframe.getContentPane())
-  private var default_button: Button = null
- 	def defaultButton = default_button
-  def defaultButton_=(b: Button) = { default_button = b; jframe.getRootPane().setDefaultButton(b.jbutton) }
-  def pack: this.type = { jframe.pack(); this }
-  jframe.addWindowListener {
+class Frame(val peer: JFrame) extends UIElement with Showable.Swing with Publisher {
+  def this() = this(new JFrame)
+  def title: String = peer.getTitle
+  def title_=(s: String) = peer.setTitle(s)
+  content = new Component {}
+  def content: Component = {
+    if (peer.getContentPane.getComponentCount == 0) new Component {}
+    else {
+      val c = peer.getContentPane.getComponent(0)
+      Component.wrapperFor(c.asInstanceOf[javax.swing.JComponent])
+    }
+  }
+  def content_=(c: Component) = {
+    if (peer.getContentPane.getComponentCount > 0) {
+      val old = peer.getContentPane.getComponent(0)
+      peer.getContentPane.remove(old)
+    }
+    peer.getContentPane.add(c.peer)
+    peer.pack() // pack also validates, which is generally required after an add}
+
+  }
+  def defaultButton: Button = Component.wrapperFor(peer.getRootPane.getDefaultButton)
+  def defaultButton_=(b: Button) { peer.getRootPane.setDefaultButton(b.peer) }
+  def pack(): this.type = { peer.pack(); this }
+  peer.addWindowListener {
     new java.awt.event.WindowListener {
       def windowActivated(e: java.awt.event.WindowEvent) = publish(WindowActivated(Frame.this))
       def windowClosed(e: java.awt.event.WindowEvent) = publish(WindowClosed(Frame.this))
diff --git a/src/swing/scala/swing/GridPanel.scala b/src/swing/scala/swing/GridPanel.scala
new file mode 100644
index 0000000000..21bbd76455
--- /dev/null
+++ b/src/swing/scala/swing/GridPanel.scala
@@ -0,0 +1,14 @@
+package swing
+
+object GridPanel {
+  val Adapt = 0
+}
+
+class GridPanel(rows0: Int, cols0: Int)(content0: Component*) extends IndexedPanel {
+  override lazy val layout = new java.awt.GridLayout(rows0, cols0)
+  override lazy val peer = new javax.swing.JPanel(layout)
+  content ++ content0
+
+  def rows: Int = layout.getRows
+  def columns: Int = layout.getColumns
+}
diff --git a/src/swing/scala/swing/IndexedPanel.scala b/src/swing/scala/swing/IndexedPanel.scala
new file mode 100644
index 0000000000..491df9a6b1
--- /dev/null
+++ b/src/swing/scala/swing/IndexedPanel.scala
@@ -0,0 +1,8 @@
+package swing
+
+import scala.collection.mutable.Buffer
+
+abstract class IndexedPanel extends Panel {
+  override val content: Buffer[Component] = new Content
+  def content_=(c: Component*)  { content.clear(); content ++= c }
+}
diff --git a/src/swing/scala/swing/Label.scala b/src/swing/scala/swing/Label.scala
index 622d74d9de..98ad0ff4d3 100644
--- a/src/swing/scala/swing/Label.scala
+++ b/src/swing/scala/swing/Label.scala
@@ -2,13 +2,13 @@ package swing;
 
 import javax.swing._;
 
-class Label(val jlabel: JLabel) extends Container(jlabel) with SwingComponent {
+class Label(override val peer: JLabel) extends Component {
   def this(txt: String) = this(new JLabel(txt))
   def this() = this("Untitled Label")
-  def text: String = jlabel.getText()
-  def text_=(s: String) = jlabel.setText(s)
-  def halign: Orientation.Value = Orientation(jlabel.getHorizontalAlignment())
-  def halign_=(x: Orientation.Value) = jlabel.setHorizontalAlignment(x.id)
-  def valign: Orientation.Value = Orientation(jlabel.getVerticalAlignment())
-  def valign_=(x: Orientation.Value) = jlabel.setVerticalAlignment(x.id)
+  def text: String = peer.getText()
+  def text_=(s: String) = peer.setText(s)
+  def xLabelAlignment: XAlignment = XAlignment.wrap(peer.getHorizontalAlignment)
+  def xLabelAlignment_=(x: XAlignment) = peer.setHorizontalAlignment(x.peer)
+  def yLabelAlignment: YAlignment = YAlignment.wrap(peer.getVerticalAlignment)
+  def yLabelAlignment_=(x: YAlignment) = peer.setVerticalAlignment(x.peer)
 }
diff --git a/src/swing/scala/swing/MainFrame.scala b/src/swing/scala/swing/MainFrame.scala
index 59701ae5e9..ea35bccd53 100644
--- a/src/swing/scala/swing/MainFrame.scala
+++ b/src/swing/scala/swing/MainFrame.scala
@@ -1,10 +1,9 @@
-package swing;
+package swing
 
-import javax.swing._;
-import event._;
+import event._
 
-class MainFrame(jframe: JFrame) extends Frame(jframe) {
-  def this() = this(new JFrame("Untitled Frame"))
+class MainFrame(peer: javax.swing.JFrame) extends Frame(peer) {
+  def this() = this(new javax.swing.JFrame)
   reactions += {
     case WindowClosing(_) => System.exit(1)
   }
diff --git a/src/swing/scala/swing/Orientation.scala b/src/swing/scala/swing/Orientation.scala
index 4c6bed34ab..ceb02f9778 100644
--- a/src/swing/scala/swing/Orientation.scala
+++ b/src/swing/scala/swing/Orientation.scala
@@ -2,10 +2,45 @@ package swing
 
 import javax.swing.SwingConstants._
 
-object Orientation extends Enumeration {
-  val left = Value(LEFT, "left")
-  val right = Value(RIGHT, "right")
-  val bottom = Value(BOTTOM, "bottom")
-  val top = Value(TOP, "top")
-  val center = Value(CENTER, "center")
+object Orientation {
+  def wrap(n: Int): Orientation = n match {
+    case HORIZONTAL => Horizontal
+    case VERTICAL => Vertical
+  }
 }
+sealed trait Orientation { def peer: Int }
+case object Horizontal extends Orientation { def peer = HORIZONTAL }
+case object Vertical extends Orientation { def peer = VERTICAL }
+
+object XAlignment {
+  def wrap(n: Int): XAlignment = n match {
+    case LEFT => Left
+    case RIGHT => Right
+    case CENTER => Center
+  }
+}
+sealed trait XAlignment { def peer: Int }
+
+object YAlignment {
+  def wrap(n: Int): YAlignment = n match {
+    case TOP => Top
+    case BOTTOM => Bottom
+    case CENTER => Center
+    //case BASELINE => Baseline
+  }
+}
+sealed trait YAlignment { def peer: Int }
+case object Left extends XAlignment { def peer = LEFT }
+case object Right extends XAlignment { def peer = RIGHT }
+case object Top extends YAlignment { def peer = TOP }
+//case object Baseline extends YAlignment { def peer = BASELINE }
+case object Bottom extends YAlignment { def peer = BOTTOM }
+case object Center extends XAlignment with YAlignment { def peer = CENTER }
+
+/*object Orientation extends Enumeration {
+  val Left = Value(LEFT, "left")
+  val Right = Value(RIGHT, "right")
+  val Bottom = Value(BOTTOM, "bottom")
+  val Top = Value(TOP, "top")
+  val Center = Value(CENTER, "center")
+}*/
diff --git a/src/swing/scala/swing/Panel.scala b/src/swing/scala/swing/Panel.scala
index e848e1bb7f..40fb69a6d6 100644
--- a/src/swing/scala/swing/Panel.scala
+++ b/src/swing/scala/swing/Panel.scala
@@ -1,15 +1,7 @@
-package swing;
+package swing
 
-import javax.swing._
-import java.awt.event._
+abstract class Panel extends Container {
+  override lazy val peer: javax.swing.JPanel = new javax.swing.JPanel
 
-class Panel(val jpanel: JPanel) extends Container(jpanel) with SwingComponent {
-  def this(layout: java.awt.LayoutManager, elements: Component*) = {
-    this(new JPanel(layout));
-    for (val elem <- elements) this += elem
-  }
-  def this(elements: Component*) = this(new java.awt.FlowLayout, elements: _*)
-
-  def layout: java.awt.LayoutManager = jpanel.getLayout()
-  def layout_=(x: java.awt.LayoutManager) = jpanel.setLayout(x)
+  def layout: java.awt.LayoutManager = peer.getLayout
 }
diff --git a/src/swing/scala/swing/ProgressBar.scala b/src/swing/scala/swing/ProgressBar.scala
new file mode 100644
index 0000000000..6172a1f598
--- /dev/null
+++ b/src/swing/scala/swing/ProgressBar.scala
@@ -0,0 +1,29 @@
+package swing
+
+import event._
+
+class ProgressBar(override val peer: javax.swing.JProgressBar) extends Component {
+  def this() = this(new javax.swing.JProgressBar)
+
+  def orientation: Orientation = Orientation.wrap(peer.getOrientation)
+  def orientation_=(o: Orientation) { peer.setOrientation(o.peer) }
+
+  def min: Int = peer.getMinimum
+  def min_=(v: Int) { peer.setMinimum(v) }
+  def max: Int = peer.getMaximum
+  def max_=(v: Int) { peer.setMaximum(v) }
+  def value: Int = peer.getValue
+  def value_=(v: Int) { peer.setValue(v) }
+
+  def labelPainted: Boolean = peer.isStringPainted
+  def labelPainted_=(v: Boolean) { peer.setStringPainted(v) }
+
+  def label: String = peer.getString
+  def label_=(v: String) = peer.setString(v)
+
+  def indeterminate: Boolean = peer.isIndeterminate
+  def indeterminate_=(v: Boolean) { peer.setIndeterminate(v) }
+
+  def paintBorder: Boolean = peer.isBorderPainted
+  def paintBorder(v: Boolean) { peer.setBorderPainted(v) }
+}
\ No newline at end of file
diff --git a/src/swing/scala/swing/Publisher.scala b/src/swing/scala/swing/Publisher.scala
index 09ff2522fe..76023aadf3 100644
--- a/src/swing/scala/swing/Publisher.scala
+++ b/src/swing/scala/swing/Publisher.scala
@@ -1,18 +1,14 @@
-package swing;
+package swing
 
 import scala.collection.mutable.HashSet
 import event.Event
 
-trait Publisher extends Object with Reactor {
+trait Publisher extends Reactor {
+  protected var listeners = new HashSet[Reactions]
 
-  protected var listeners = new HashSet[Reactions];
-
-  def subscribe(listener: Reactions) = { listeners += listener }
-
-  def unsubscribe(listener: Reactions) = { listeners -= listener }
-
-  def publish(e: Event) =
-    for (val l <- listeners) l.send(e)
+  def subscribe(listener: Reactions) { listeners += listener }
+  def unsubscribe(listener: Reactions) { listeners -= listener }
+  def publish(e: Event) { for (val l <- listeners) l.send(e) }
 
   listenTo(this)
 }
diff --git a/src/swing/scala/swing/ScrollPane.scala b/src/swing/scala/swing/ScrollPane.scala
index d66d590d2e..b6cb577175 100644
--- a/src/swing/scala/swing/ScrollPane.scala
+++ b/src/swing/scala/swing/ScrollPane.scala
@@ -1,18 +1,14 @@
 package swing;
 
-import javax.swing._
-import javax.swing.table._
-import javax.swing.event._
-import event._
+import javax.swing.JScrollPane
 
-class ScrollPane(val jscrollpane: JScrollPane) extends Container(jscrollpane) with SwingComponent with Publisher {
-  def this() = this(new JScrollPane())
-  def this(contents: Component) = this(new JScrollPane(contents.acomponent))
+class ScrollPane(override val peer: JScrollPane) extends Container(peer) with Publisher {
+  def this() = this(new JScrollPane)
+  def this(contents: Component) = this(new JScrollPane(contents.peer))
 
   def rowHeaderView: Component = null
-  def rowHeaderView_=(c: Component) = jscrollpane.setRowHeaderView(c.acomponent)
-
+  def rowHeaderView_=(c: Component) = peer.setRowHeaderView(c.peer)
   def viewportView: Component = null
-  def viewportView_=(c: Component) = jscrollpane.setViewportView(c.acomponent)
+  def viewportView_=(c: Component) = peer.setViewportView(c.peer)
 
 }
diff --git a/src/swing/scala/swing/Showable.scala b/src/swing/scala/swing/Showable.scala
new file mode 100644
index 0000000000..02e6110144
--- /dev/null
+++ b/src/swing/scala/swing/Showable.scala
@@ -0,0 +1,12 @@
+package swing
+
+object Showable {
+  trait Swing extends Showable {
+    def peer: { def setVisible(b: Boolean) }
+    def show(): this.type = { peer.setVisible(true); this }
+  }
+}
+
+trait Showable {
+  def show(): this.type
+}
diff --git a/src/swing/scala/swing/SimpleGUIApplication.scala b/src/swing/scala/swing/SimpleGUIApplication.scala
index 43708d955a..208a85d1b4 100644
--- a/src/swing/scala/swing/SimpleGUIApplication.scala
+++ b/src/swing/scala/swing/SimpleGUIApplication.scala
@@ -3,14 +3,11 @@ package swing
 import javax.swing._
 
 abstract class SimpleGUIApplication extends GUIApplication {
-
-  def top: Frame;
+  def top: Frame
 
   def main(args: Array[String]) = {
     SwingUtilities.invokeLater {
-      new Runnable() {
-        def run(): unit = { init(); top.pack.show }
-      }
+      new Runnable { def run() { init(); top.pack.show() } }
     }
   }
 
diff --git a/src/swing/scala/swing/Slider.scala b/src/swing/scala/swing/Slider.scala
index 18fae3225b..10b56fe458 100644
--- a/src/swing/scala/swing/Slider.scala
+++ b/src/swing/scala/swing/Slider.scala
@@ -1,17 +1,47 @@
-package swing;
+package swing
 
-import javax.swing._
 import event._
+import Swing._
 
-class Slider(val jbutton: JButton) extends Container(jbutton) with Publisher {
-  def this(txt: String) = this(new JButton(txt))
-  def this() = this("Untitled Button")
-  def text: String = jbutton.getText()
-  def text_=(s: String) = jbutton.setText(s)
-  jbutton.addActionListener {
-    new java.awt.event.ActionListener {
-      def actionPerformed(e: java.awt.event.ActionEvent): unit =
-        {}
-    }
+class Slider(override val peer: javax.swing.JSlider) extends Component with EditorComponent {
+  def this() = this(new javax.swing.JSlider)
+
+  def orientation: Orientation = Orientation.wrap(peer.getOrientation)
+  def orientation_=(o: Orientation) { peer.setOrientation(o.peer) }
+
+  def min: Int = peer.getMinimum
+  def min_=(v: Int) { peer.setMinimum(v) }
+  def max: Int = peer.getMaximum
+  def max_=(v: Int) { peer.setMaximum(v) }
+  def value: Int = peer.getValue
+  def value_=(v: Int) { peer.setValue(v) }
+  def extent: Int = peer.getExtent
+  def extent_=(v: Int) { peer.setExtent(v) }
+
+  def paintLabels: Boolean = peer.getPaintLabels
+  def paintLabels_=(v: Boolean) { peer.setPaintLabels(v) }
+  def paintTicks: Boolean = peer.getPaintTicks
+  def paintTicks_=(v: Boolean) { peer.setPaintTicks(v) }
+  def paintTrack: Boolean = peer.getPaintTrack
+  def paintTrack_=(v: Boolean) { peer.setPaintTrack(v) }
+
+  def snapToTicks: Boolean = peer.getSnapToTicks
+  def snapToTicks_=(v: Boolean) { peer.setSnapToTicks(v) }
+
+  def minorTickSpacing: Int = peer.getMinorTickSpacing
+  def minorTickSpacing_=(v: Int) { peer.setMinorTickSpacing(v) }
+  def majorTickSpacing: Int = peer.getMajorTickSpacing
+  def majorTickSpacing_=(v: Int) { peer.setMajorTickSpacing(v) }
+
+  def labels: collection.Map[Int, Label] =
+    new collection.jcl.MapWrapper[Int, Label] { def underlying = peer.getLabelTable.asInstanceOf[java.util.Hashtable[Int, Label]] }
+  def labels_=(l: collection.Map[Int, Label]) {
+    val table = new java.util.Hashtable[Any, Any]
+    for ((k,v) <- l) table.put(k, v)
+    peer.setLabelTable(table)
+  }
+
+  lazy val contentModified = new Publisher {
+    peer.addChangeListener { ChangeListener( e => publish(ContentModified(Slider.this))) }
   }
-}
+}
\ No newline at end of file
diff --git a/src/swing/scala/swing/Spreadsheet.scala b/src/swing/scala/swing/Spreadsheet.scala
index 6bd0d4a21e..62228890a3 100644
--- a/src/swing/scala/swing/Spreadsheet.scala
+++ b/src/swing/scala/swing/Spreadsheet.scala
@@ -5,7 +5,7 @@ import javax.swing.event.{TableModelListener, TableModelEvent}
 import javax.swing._
 import event._
 
-class Spreadsheet(width: Int, height: Int) extends Component with SwingComponent with Publisher {
+/*class Spreadsheet(width: Int, height: Int) extends Component with SwingComponent with Publisher {
 
 
   def showGrid: Boolean = acomponent.table.getShowHorizontalLines && acomponent.table.getShowVerticalLines
@@ -97,4 +97,4 @@ class Spreadsheet(width: Int, height: Int) extends Component with SwingComponent
 
   def apply(pos: (Int, Int)) = data(pos._1, pos._2).userData
 
-}
+}*/
diff --git a/src/swing/scala/swing/Swing.scala b/src/swing/scala/swing/Swing.scala
new file mode 100644
index 0000000000..8c0b255b73
--- /dev/null
+++ b/src/swing/scala/swing/Swing.scala
@@ -0,0 +1,35 @@
+package swing
+
+import javax.swing._
+import javax.swing.event._
+
+object Swing {
+  implicit def block2Runnable(block: =>Unit): Runnable = new Runnable {
+    override def run = block
+  }
+  def ChangeListener(f: ChangeEvent => Unit) = new ChangeListener {
+    def stateChanged(e: ChangeEvent) { f(e) }
+  }
+
+  def Box(min: Dimension, pref: Dimension, max: Dimension) = new Component {
+    override lazy val peer = new javax.swing.Box.Filler(min.peer, pref.peer, max.peer)
+  }
+  def HGlue = new Component {
+    override lazy val peer = javax.swing.Box.createHorizontalGlue.asInstanceOf[JComponent]
+  }
+  def VGlue = new Component {
+    override lazy val peer = javax.swing.Box.createVerticalGlue.asInstanceOf[JComponent]
+  }
+  def Glue = new Component {
+    override lazy val peer = javax.swing.Box.createGlue.asInstanceOf[JComponent]
+  }
+  def RigidBox(dim: Dimension) = new Component {
+    override lazy val peer = javax.swing.Box.createRigidArea(dim.peer).asInstanceOf[JComponent]
+  }
+  def HStrut(width: Int) = new Component {
+    override lazy val peer = javax.swing.Box.createHorizontalStrut(width).asInstanceOf[JComponent]
+  }
+  def VStrut(height: Int) = new Component {
+    override lazy val peer = javax.swing.Box.createVerticalStrut(height).asInstanceOf[JComponent]
+  }
+}
diff --git a/src/swing/scala/swing/SwingComponent.scala b/src/swing/scala/swing/SwingComponent.scala
index 73c7c43aaf..e035518a8c 100644
--- a/src/swing/scala/swing/SwingComponent.scala
+++ b/src/swing/scala/swing/SwingComponent.scala
@@ -3,9 +3,9 @@ package swing
 import javax.swing._
 import java.awt._
 
-trait SwingComponent extends Component {
-  val jcomponent = acomponent.asInstanceOf[JComponent];
+/*trait SwingComponent extends Component {
+  val jcomponent = acomponent.asInstanceOf[JComponent]
   def border: javax.swing.border.Border = jcomponent.getBorder()
   def border_=(x: javax.swing.border.Border): unit = jcomponent.setBorder(x)
-}
+}*/
 
diff --git a/src/swing/scala/swing/Table.scala b/src/swing/scala/swing/Table.scala
index 17a44797c6..a55c231fdf 100644
--- a/src/swing/scala/swing/Table.scala
+++ b/src/swing/scala/swing/Table.scala
@@ -17,7 +17,7 @@ object Table {
   }
 }
 
-class Table(val jtable: JTable) extends Container(jtable) with SwingComponent with Publisher {
+class Table(override val peer: JTable) extends Component with Publisher {
   import Table._
   def this() = this(new JTable())
   def this(numRows: Int, numColumns: Int) = this(new JTable(numRows, numColumns))
@@ -28,41 +28,43 @@ class Table(val jtable: JTable) extends Container(jtable) with SwingComponent wi
   def this(dm: TableModel, cm: TableColumnModel) = this(new JTable(dm, cm))
   def this(dm: TableModel, cm: TableColumnModel, sm: ListSelectionModel) = this(new JTable(dm, cm, sm))
 
-  def rowHeight = jtable.getRowHeight
-  def rowHeight_=(x: Int) = jtable.setRowHeight(x)
+  def rowHeight = peer.getRowHeight
+  def rowHeight_=(x: Int) = peer.setRowHeight(x)
 
-  def rowCount = jtable.getRowCount
+  def rowCount = peer.getRowCount
 
-  def model = jtable.getModel()
-  def model_=(x: TableModel) = jtable.setModel(x)
+  def model = peer.getModel()
+  def model_=(x: TableModel) = peer.setModel(x)
 
-  def autoResizeMode: AutoResizeMode.Value = AutoResizeMode(jtable.getAutoResizeMode)
-  def autoResizeMode_=(x: Table.AutoResizeMode.Value) = jtable.setAutoResizeMode(x.id)
+  def autoResizeMode: AutoResizeMode.Value = AutoResizeMode(peer.getAutoResizeMode)
+  def autoResizeMode_=(x: Table.AutoResizeMode.Value) = peer.setAutoResizeMode(x.id)
 
-  def showGrid = jtable.getShowHorizontalLines && jtable.getShowVerticalLines
-  def showGrid_=(grid: Boolean) = jtable.setShowGrid(grid)
+  def showGrid = peer.getShowHorizontalLines && peer.getShowVerticalLines
+  def showGrid_=(grid: Boolean) = peer.setShowGrid(grid)
 
-  def gridColor = new swing.Color(jtable.getGridColor)
-  def gridColor_=(color: swing.Color) = jtable.setGridColor(color)
+  def gridColor = new swing.Color(peer.getGridColor)
+  def gridColor_=(color: swing.Color) = peer.setGridColor(color)
 
-  private val initialRenderer = jtable.getDefaultRenderer(classOf[AnyRef])
+  private val initialRenderer = peer.getDefaultRenderer(classOf[AnyRef])
 
   protected def render(isSelected: Boolean, hasFocus: Boolean, row: Int, column: Int): Component =
-    new AWTComponentWrapper(
-        initialRenderer.getTableCellRendererComponent(jtable, jtable.getValueAt(row, column), isSelected, hasFocus, row, column))
+    new Component {
+      override lazy val peer = initialRenderer.getTableCellRendererComponent(Table.this.peer,
+                 Table.this.peer.getValueAt(row, column), isSelected, hasFocus, row, column).asInstanceOf[JComponent]
+    }
 
-  jtable.setDefaultRenderer(classOf[AnyRef], new TableCellRenderer {
-      def getTableCellRendererComponent(jtable: JTable, value: AnyRef, isSelected: Boolean, hasFocus: Boolean, row: Int, column: Int) =
-        render(isSelected, hasFocus, row, column).acomponent
+  peer.setDefaultRenderer(classOf[AnyRef], new TableCellRenderer {
+      def getTableCellRendererComponent(table: JTable, value: AnyRef, isSelected: Boolean, hasFocus: Boolean, row: Int, column: Int) =
+        render(isSelected, hasFocus, row, column).peer
     })
 
-  def apply(row: Int, column: Int) = jtable.getValueAt(row, column)
-  def update(row: Int, column: Int, value: AnyRef) = jtable.setValueAt(value, row, column)
+  def apply(row: Int, column: Int) = peer.getValueAt(row, column)
+  def update(row: Int, column: Int, value: AnyRef) = peer.setValueAt(value, row, column)
 
   def markUpdated(row: Int, column: Int) = update(row, column, apply(row, column))
 
   /*
-  jtable.addActionListener {
+  peer.addActionListener {
     new java.awt.event.ActionListener {
       def actionPerformed(e: java.awt.event.ActionEvent): unit =
         publish(ButtonPressed(Button.this))
diff --git a/src/swing/scala/swing/TextComponent.scala b/src/swing/scala/swing/TextComponent.scala
index 353349ffcf..ba535efb08 100644
--- a/src/swing/scala/swing/TextComponent.scala
+++ b/src/swing/scala/swing/TextComponent.scala
@@ -1,22 +1,34 @@
 package swing
 
 import javax.swing._
-import javax.swing.text.JTextComponent
-import javax.swing.event.{CaretEvent,CaretListener}
-import event.CaretUpdate
+import javax.swing.text._
+import javax.swing.event._
+import event._
 
-class TextComponent(val jtextcomponent: JTextComponent)
-extends Container(jtextcomponent) with SwingComponent with Publisher {
+class TextComponent(override val peer: JTextComponent) extends Component with EditorComponent with Publisher {
+  def text: String = peer.getText
+  def text_=(x: String) = peer.setText(x)
 
-  def text: String = jtextcomponent.getText()
-  def text_=(x: String) = jtextcomponent.setText(x)
+  val caret = new Caret(peer.getCaret)
 
-  val caret = new Caret(jtextcomponent.getCaret())
+  def content: String = peer.getText
+  def content_=(v: String) { peer.setText(v) }
 
-  jtextcomponent.addCaretListener {
+  peer.addCaretListener {
     new CaretListener {
-      def caretUpdate(e: CaretEvent) =
-        publish(CaretUpdate(TextComponent.this))
+      def caretUpdate(e: CaretEvent) { publish(CaretUpdate(TextComponent.this)) }
+    }
+  }
+
+  lazy val contentModified = liveContentModified
+
+  protected def liveContentModified = new Publisher {
+    peer.getDocument.addDocumentListener {
+      new DocumentListener {
+        override def changedUpdate(e:DocumentEvent) { publish(ContentModified(TextComponent.this)) }
+        override def insertUpdate(e:DocumentEvent) { publish(ContentModified(TextComponent.this)) }
+        override def removeUpdate(e:DocumentEvent) { publish(ContentModified(TextComponent.this)) }
+      }
     }
   }
 }
diff --git a/src/swing/scala/swing/TextField.scala b/src/swing/scala/swing/TextField.scala
index 5dd781011d..ab5043c1ac 100644
--- a/src/swing/scala/swing/TextField.scala
+++ b/src/swing/scala/swing/TextField.scala
@@ -1,22 +1,25 @@
-package swing;
+package swing
 
 import javax.swing._
 import java.awt.event._
 import event._
 
-class TextField(val jtextfield: JTextField) extends TextComponent(jtextfield) {
-  def this(text: String, columns: int) = this(new JTextField(text, columns));
-  def this(text: String) = this(new JTextField(text));
-  def this(columns: int) = this(new JTextField(columns));
-  def this() = this(new JTextField());
+class TextField(override val peer: JTextField) extends TextComponent(peer) {
+  def this(text: String, columns: int) = this(new JTextField(text, columns))
+  def this(text: String) = this(new JTextField(text))
+  def this(columns: int) = this(new JTextField(columns))
+  def this() = this(new JTextField())
 
-  def columns: int = jtextfield.getColumns()
-  def columns_=(x: int) = jtextfield.setColumns(x)
+  def columns: int = peer.getColumns()
+  def columns_=(x: int) = peer.setColumns(x)
 
-  jtextfield.addActionListener {
-    new ActionListener {
-      def actionPerformed(e: ActionEvent) =
-        publish(TextModified(TextField.this))
+  override lazy val contentModified = new Publisher {
+    peer.addActionListener {
+      new ActionListener {
+        def actionPerformed(e: ActionEvent) { publish(ContentModified(TextField.this)) }
+      }
     }
   }
+
+  override lazy val liveContentModified = super.liveContentModified
 }
diff --git a/src/swing/scala/swing/UIElement.scala b/src/swing/scala/swing/UIElement.scala
new file mode 100644
index 0000000000..bf0f81fcc5
--- /dev/null
+++ b/src/swing/scala/swing/UIElement.scala
@@ -0,0 +1,5 @@
+package swing
+
+trait UIElement {
+
+}
diff --git a/src/swing/scala/swing/event/ButtonPressed.scala b/src/swing/scala/swing/event/ButtonPressed.scala
index fb7850e93d..aa35f8ea72 100644
--- a/src/swing/scala/swing/event/ButtonPressed.scala
+++ b/src/swing/scala/swing/event/ButtonPressed.scala
@@ -1,3 +1,3 @@
 package swing.event
 
-case class ButtonPressed(b: Button) extends Event
+case class ButtonPressed(override val source: Button) extends ComponentEvent(source)
diff --git a/src/swing/scala/swing/event/CaretUpdate.scala b/src/swing/scala/swing/event/CaretUpdate.scala
index 98d8b7f27c..a16d2a532a 100644
--- a/src/swing/scala/swing/event/CaretUpdate.scala
+++ b/src/swing/scala/swing/event/CaretUpdate.scala
@@ -1,3 +1,3 @@
 package swing.event
 
-case class CaretUpdate(text: TextComponent) extends Event
+case class CaretUpdate(override val source: TextComponent) extends ComponentEvent(source)
diff --git a/src/swing/scala/swing/event/CellModified.scala b/src/swing/scala/swing/event/CellModified.scala
index bfaf61013b..266c625cc7 100644
--- a/src/swing/scala/swing/event/CellModified.scala
+++ b/src/swing/scala/swing/event/CellModified.scala
@@ -1,3 +1,3 @@
 package swing.event
 
-case class CellModified(col: Int, row: int, value: String) extends Event
+//case class CellModified(source: Table, col: Int, row: int, value: String) extends Event(source)
diff --git a/src/swing/scala/swing/event/ComponentEvent.scala b/src/swing/scala/swing/event/ComponentEvent.scala
new file mode 100644
index 0000000000..191bc707f0
--- /dev/null
+++ b/src/swing/scala/swing/event/ComponentEvent.scala
@@ -0,0 +1,3 @@
+package swing.event
+
+abstract class ComponentEvent(override val source: Component) extends Event(source)
diff --git a/src/swing/scala/swing/event/ContentModified.scala b/src/swing/scala/swing/event/ContentModified.scala
new file mode 100644
index 0000000000..2d0d955720
--- /dev/null
+++ b/src/swing/scala/swing/event/ContentModified.scala
@@ -0,0 +1,3 @@
+package swing.event
+
+case class ContentModified(override val source: Component) extends ComponentEvent(source)
diff --git a/src/swing/scala/swing/event/Event.scala b/src/swing/scala/swing/event/Event.scala
index 21306d5b94..9df216819e 100644
--- a/src/swing/scala/swing/event/Event.scala
+++ b/src/swing/scala/swing/event/Event.scala
@@ -1,3 +1,3 @@
 package swing.event
 
-abstract class Event
+abstract class Event(val source: UIElement)
diff --git a/src/swing/scala/swing/event/TableChanged.scala b/src/swing/scala/swing/event/TableChanged.scala
index 3e1c6f8f6d..5354219f7b 100644
--- a/src/swing/scala/swing/event/TableChanged.scala
+++ b/src/swing/scala/swing/event/TableChanged.scala
@@ -1,5 +1,5 @@
 package swing.event
 
-case class TableChanged(table: Table, firstRow: Int, lastRow: Int, column: Int) extends Event {
-  println("table changed: "+table+"/"+firstRow+"-"+lastRow+":"+column)
+case class TableChanged(override val source: Table, firstRow: Int, lastRow: Int, column: Int) extends ComponentEvent(source) {
+  println("table changed: "+source+"/"+firstRow+"-"+lastRow+":"+column)
 }
diff --git a/src/swing/scala/swing/event/TableResized.scala b/src/swing/scala/swing/event/TableResized.scala
index 716ae89bf0..a2b598ba53 100644
--- a/src/swing/scala/swing/event/TableResized.scala
+++ b/src/swing/scala/swing/event/TableResized.scala
@@ -1,3 +1,3 @@
-package swing.event;
+package swing.event
 
-case class TableResized(table: Table) extends Event
+case class TableResized(override val source: Table) extends ComponentEvent(source)
diff --git a/src/swing/scala/swing/event/TextModified.scala b/src/swing/scala/swing/event/TextModified.scala
index 703d7711a0..7ea4ff6b1c 100644
--- a/src/swing/scala/swing/event/TextModified.scala
+++ b/src/swing/scala/swing/event/TextModified.scala
@@ -1,3 +1,3 @@
 package swing.event
 
-case class TextModified(text: TextComponent) extends Event
+//case class TextModified(override val source: TextComponent) extends ContentModified(source)
diff --git a/src/swing/scala/swing/event/WindowActivated.scala b/src/swing/scala/swing/event/WindowActivated.scala
index 5f4e0b3bbf..b2a9095fa6 100644
--- a/src/swing/scala/swing/event/WindowActivated.scala
+++ b/src/swing/scala/swing/event/WindowActivated.scala
@@ -1,3 +1,3 @@
 package swing.event
 
-case class WindowActivated(window: Frame) extends WindowEvent;
+case class WindowActivated(override val source: Frame) extends WindowEvent(source)
diff --git a/src/swing/scala/swing/event/WindowClosed.scala b/src/swing/scala/swing/event/WindowClosed.scala
index 5834d69c46..f2c50bf146 100644
--- a/src/swing/scala/swing/event/WindowClosed.scala
+++ b/src/swing/scala/swing/event/WindowClosed.scala
@@ -1,3 +1,3 @@
 package swing.event
 
-case class WindowClosed(window: Frame) extends WindowEvent;
+case class WindowClosed(override val source: Frame) extends WindowEvent(source)
diff --git a/src/swing/scala/swing/event/WindowClosing.scala b/src/swing/scala/swing/event/WindowClosing.scala
index 6938590347..309516fd89 100644
--- a/src/swing/scala/swing/event/WindowClosing.scala
+++ b/src/swing/scala/swing/event/WindowClosing.scala
@@ -1,3 +1,3 @@
 package swing.event
 
-case class WindowClosing(window: Frame) extends WindowEvent;
+case class WindowClosing(override val source: Frame) extends WindowEvent(source)
diff --git a/src/swing/scala/swing/event/WindowDeactivated.scala b/src/swing/scala/swing/event/WindowDeactivated.scala
index d44214c73d..d012167f98 100644
--- a/src/swing/scala/swing/event/WindowDeactivated.scala
+++ b/src/swing/scala/swing/event/WindowDeactivated.scala
@@ -1,3 +1,3 @@
 package swing.event
 
-case class WindowDeactivated(window: Frame) extends WindowEvent;
+case class WindowDeactivated(override val source: Frame) extends WindowEvent(source)
diff --git a/src/swing/scala/swing/event/WindowDeiconified.scala b/src/swing/scala/swing/event/WindowDeiconified.scala
index 6a956a47d2..3820b67024 100644
--- a/src/swing/scala/swing/event/WindowDeiconified.scala
+++ b/src/swing/scala/swing/event/WindowDeiconified.scala
@@ -1,3 +1,3 @@
 package swing.event
 
-case class WindowDeiconified(window: Frame) extends WindowEvent;
+case class WindowDeiconified(override val source: Frame) extends WindowEvent(source)
diff --git a/src/swing/scala/swing/event/WindowEvent.scala b/src/swing/scala/swing/event/WindowEvent.scala
index c6c8b6ffca..dd28f822ed 100644
--- a/src/swing/scala/swing/event/WindowEvent.scala
+++ b/src/swing/scala/swing/event/WindowEvent.scala
@@ -1,5 +1,3 @@
 package swing.event
 
-abstract class WindowEvent extends Event {
-  val window: Frame
-}
+abstract class WindowEvent(source: Frame) extends Event(source)
diff --git a/src/swing/scala/swing/event/WindowIconified.scala b/src/swing/scala/swing/event/WindowIconified.scala
index 2b6f6378c3..1ca67dc126 100644
--- a/src/swing/scala/swing/event/WindowIconified.scala
+++ b/src/swing/scala/swing/event/WindowIconified.scala
@@ -1,3 +1,3 @@
 package swing.event
 
-case class WindowIconified(window: Frame) extends WindowEvent;
+case class WindowIconified(override val source: Frame) extends WindowEvent(source)
diff --git a/src/swing/scala/swing/event/WindowOpened.scala b/src/swing/scala/swing/event/WindowOpened.scala
index 952176670a..b1f8a3a7d5 100644
--- a/src/swing/scala/swing/event/WindowOpened.scala
+++ b/src/swing/scala/swing/event/WindowOpened.scala
@@ -1,3 +1,3 @@
 package swing.event
 
-case class WindowOpened(window: Frame) extends WindowEvent;
+case class WindowOpened(override val source: Frame) extends WindowEvent(source)
diff --git a/src/swing/scala/swing/layout.scala b/src/swing/scala/swing/layout.scala
deleted file mode 100644
index 3628b2de3a..0000000000
--- a/src/swing/scala/swing/layout.scala
+++ /dev/null
@@ -1,12 +0,0 @@
-package swing
-
-import java.awt._
-
-object layout {
-
-  val flex = 0
-
-  def grid(rows: int, columns: int) = new GridLayout(rows, columns)
-  def row = new FlowLayout()
-  def column = grid(flex, 1)
-}
diff --git a/src/swing/scala/swing/test/CelsiusConverter.scala b/src/swing/scala/swing/test/CelsiusConverter.scala
index 8d78667aa5..493a901890 100644
--- a/src/swing/scala/swing/test/CelsiusConverter.scala
+++ b/src/swing/scala/swing/test/CelsiusConverter.scala
@@ -1,39 +1,36 @@
-package swing.test;
+package swing.test
 
 import swing._
-import layout._
 import event._
-import Orientation.{left, right}
 
 /** A GUI app to convert celsius to centigrade
  */
 object CelsiusConverter extends SimpleGUIApplication {
-  def top: Frame = new MainFrame {
+  def top = new MainFrame {
     title = "Convert Celsius to Fahrenheit"
     defaultButton = convertButton
-    object tempCelsius extends TextField();
+    object tempCelsius extends TextField
     object celsiusLabel extends Label {
       text = "Celsius"
-      border = new EmptyBorder(5, 5, 5, 5)
+      border = EmptyBorder(5, 5, 5, 5)
     }
     object convertButton extends Button {
       icon = new javax.swing.ImageIcon("c:\\workspace\\gui\\images\\convert.gif")
-      border = new EmptyBorder(5, 5, 5, 5)
+      border = EmptyBorder(5, 5, 5, 5)
     }
     object fahrenheitLabel extends Label {
       text = "Fahrenheit     "
-      border = new EmptyBorder(5, 5, 5, 5)
+      border = EmptyBorder(5, 5, 5, 5)
       listenTo(convertButton, tempCelsius)
       reactions += {
-        case ButtonPressed(_) | TextModified(_) =>
+        case ButtonPressed(_) | ContentModified(_) =>
           val c = Integer.parseInt(tempCelsius.text)
           val f = c * 9 / 5 + 32
           text = "<html><font color = red>"+f+"</font> Fahrenheit</html>"
       }
     }
-    contents += new Panel(tempCelsius, celsiusLabel, convertButton, fahrenheitLabel) {
-      layout = grid(2, 2)
-      border = new EmptyBorder(10, 10, 10, 10)
+    content = new GridPanel(2,2)(tempCelsius, celsiusLabel, convertButton, fahrenheitLabel) {
+      border = EmptyBorder(10, 10, 10, 10)
     }
   }
 }
diff --git a/src/swing/scala/swing/test/CelsiusConverter2.scala b/src/swing/scala/swing/test/CelsiusConverter2.scala
index 5813b3042d..5df70adcb0 100644
--- a/src/swing/scala/swing/test/CelsiusConverter2.scala
+++ b/src/swing/scala/swing/test/CelsiusConverter2.scala
@@ -1,26 +1,24 @@
-package swing.test;
+package swing.test
 
 import swing._
-import layout._
 import event._
-import Orientation.{left, right, center}
 
 object CelsiusConverter2 extends SimpleGUIApplication {
   def top = new MainFrame {
     title = "Convert Celsius / Fahrenheit"
-    object Celsius extends TextField { columns = 5 };
+    object Celsius extends TextField { columns = 5 }
     object Fahrenheit extends TextField { columns = 5 }
-    contents += new Panel(Celsius, new Label(" Celsius  =  "),
-                          Fahrenheit, new Label(" Fahrenheit")) {
-      border = new EmptyBorder(15, 10, 10, 10)
+    content = new FlowPanel(Horizontal)(Celsius, new Label(" Celsius  =  "),
+                                        Fahrenheit, new Label(" Fahrenheit")) {
+      border = EmptyBorder(15, 10, 10, 10)
     }
-    listenTo(Fahrenheit, Celsius)
+    listenTo(Fahrenheit.contentModified, Celsius.contentModified)
     reactions += {
-      case TextModified(Fahrenheit) =>
+      case ContentModified(Fahrenheit) =>
         val f = Integer.parseInt(Fahrenheit.text)
         val c = (f - 32) * 5 / 9
         Celsius.text = c.toString
-      case TextModified(Celsius) =>
+      case ContentModified(Celsius) =>
         val c = Integer.parseInt(Celsius.text)
         val f = c * 9 / 5 + 32
         Fahrenheit.text = f.toString
diff --git a/src/swing/scala/swing/test/HelloWorld.scala b/src/swing/scala/swing/test/HelloWorld.scala
index e19a6e92e4..4cbf254bb2 100644
--- a/src/swing/scala/swing/test/HelloWorld.scala
+++ b/src/swing/scala/swing/test/HelloWorld.scala
@@ -1,13 +1,12 @@
-package swing.test;
+package swing.test
 
-import swing._;
-import javax.swing._;
+import swing._
 
 object HelloWorld extends GUIApplication {
   def main(args: Array[String]) = run {
     new Frame {
-      title = "HelloWorldSwing";
-      contents += new Label("Hello World");
+      title = "HelloWorldSwing"
+      content = new Label("Hello World")
     }.pack.show
   }
 }
diff --git a/src/swing/scala/swing/test/SwingApp.scala b/src/swing/scala/swing/test/SwingApp.scala
index 1712b74ee4..b66d0a0e48 100644
--- a/src/swing/scala/swing/test/SwingApp.scala
+++ b/src/swing/scala/swing/test/SwingApp.scala
@@ -1,8 +1,7 @@
-package swing.test;
+package swing.test
 
 import swing._
 import swing.event._
-import swing.layout._
 
 object SwingApp extends SimpleGUIApplication {
   def top = new MainFrame {
@@ -21,9 +20,8 @@ object SwingApp extends SimpleGUIApplication {
     object button extends Button {
       text = "I am a button"
     }
-    contents += new Panel(label, button) {
-      layout = column
-      border = new EmptyBorder(30, 30, 10, 30)
+    content = new GridPanel(GridPanel.Adapt,1)(label, button) {
+      border = EmptyBorder(5, 5, 5, 5)
     }
   }
 }
-- 
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