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Added a Swing ColorChooser wrapper

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1 parent bdff881 commit 08ab007c5c97f153902c4ac58f87e30fbf7cf99f @ingoem ingoem committed Sep 26, 2012
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+package examples.swing
+
+import java.awt.{Color, Font, Dimension}
+import swing._
+import event._
+import Swing._
+import BorderPanel._
+
+/**
+ * Demo for ColorChooser.
+ * Based on http://download.oracle.com/javase/tutorial/uiswing/components/colorchooser.html
+ *
+ * @author andy@hicks.net
+ */
+object ColorChooserDemo extends SimpleSwingApplication {
+ def top = new MainFrame {
+ title = "ColorChooser Demo"
+ size = new Dimension(400, 400)
+
+ contents = ui
+ }
+
+ def ui = new BorderPanel {
+ val colorChooser = new ColorChooser {
+ reactions += {
+ case ColorChanged(_, c) =>
+ banner.foreground = c
+ }
+ }
+
+ colorChooser.border = TitledBorder(EtchedBorder, "Choose Text Color")
+
+ val banner = new Label("Welcome to Scala Swing") {
+ horizontalAlignment = Alignment.Center
+ foreground = Color.yellow
+ background = Color.blue
+ opaque = true
+ font = new Font("SansSerif", Font.BOLD, 24)
+ }
+
+ val bannerArea = new BorderPanel {
+ layout(banner) = Position.Center
+ border = TitledBorder(EtchedBorder, "Banner")
+ }
+
+ // Display a color selection dialog when button pressed
+ val selectColor = new Button("Choose Background Color") {
+ reactions += {
+ case ButtonClicked(_) =>
+ ColorChooser.showDialog(this, "Test", Color.red) match {
+ case Some(c) => banner.background = c
+ case None =>
+ }
+ }
+ }
+
+ layout(bannerArea) = Position.North
+ layout(colorChooser) = Position.Center
+ layout(selectColor) = Position.South
+ }
+}
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+/* __ *\
+** ________ ___ / / ___ Scala API **
+** / __/ __// _ | / / / _ | (c) 2007-2012, LAMP/EPFL **
+** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
+** /____/\___/_/ |_/____/_/ | | **
+** |/ **
+\* */
+
+
+
+package scala.swing
+
+import javax.swing.JColorChooser
+import event._
+
+/**
+ * Wrapper for JColorChooser. Publishes `ColorChanged` events, when the color selection changes.
+ *
+ * @author andy@hicks.net
+ * @author Ingo Maier
+ * @see javax.swing.JColorChooser
+ */
+object ColorChooser {
+ def showDialog(parent: Component, title: String, color: Color): scala.Option[Color] = {
+ toOption[Color](javax.swing.JColorChooser.showDialog(parent.peer, title, color))
+ }
+}
+
+class ColorChooser(color0: Color) extends Component {
+ def this() = this(java.awt.Color.white)
+
+ override lazy val peer: JColorChooser = new JColorChooser(color0) with SuperMixin
+
+ peer.getSelectionModel.addChangeListener(new javax.swing.event.ChangeListener {
+ def stateChanged(e: javax.swing.event.ChangeEvent) {
+ publish(ColorChanged(ColorChooser.this, peer.getColor))
+ }
+ })
+
+ def color: Color = peer.getColor
+ def color_=(c: Color) = peer.setColor(c)
+
+ def dragEnabled: Boolean = peer.getDragEnabled
+ def dragEnabled_=(b: Boolean) = peer.setDragEnabled(b)
+}
@@ -0,0 +1,14 @@
+/* __ *\
+** ________ ___ / / ___ Scala API **
+** / __/ __// _ | / / / _ | (c) 2007-2011, LAMP/EPFL **
+** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
+** /____/\___/_/ |_/____/_/ | | **
+** |/ **
+\* */
+
+
+
+package scala.swing
+package event
+
+case class ColorChanged(source: Component, c: Color) extends ComponentEvent with SelectionEvent

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