1 files changed, 75 insertions, 0 deletions
diff --git a/src/de/fhswf/in/inf/java2/aufgabe02/CardChangeEvent.java b/src/de/fhswf/in/inf/java2/aufgabe02/CardChangeEvent.java
new file mode 100644
index 0000000..2050536
--- /dev/null
+++ b/src/de/fhswf/in/inf/java2/aufgabe02/CardChangeEvent.java
@@ -0,0 +1,75 @@
+/**
+ * Class CardChangeEvent.
+ */
+
+package de.fhswf.in.inf.java2.aufgabe02;
+
+import javafx.collections.ObservableList;
+import javafx.event.ActionEvent;
+import javafx.event.EventHandler;
+import javafx.scene.Node;
+import javafx.scene.control.Label;
+
+/**
+ * Generic handler for loading Labels on button click.
+ *
+ * @author $Author: $
+ * @version $Revision: $, $Date: $ UTC
+ */
+public class CardChangeEvent implements EventHandler<ActionEvent>
+{
+
+   private ObservableList<Node> children;
+
+   private String labelName;
+
+   private Label label = null;
+
+   /**
+    * Adds an eventHandler for the button so that a label is loaded into the
+    * stack pane.
+    *
+    */
+   public CardChangeEvent(ObservableList<Node> children, String labelName)
+   {
+      if (children == null)
+      {
+         throw new IllegalArgumentException("children can't be null.");
+      }
+
+      if (labelName == null)
+      {
+         throw new IllegalArgumentException("labelName can't be null.");
+      }
+
+      if (labelName.isEmpty())
+      {
+         throw new IllegalArgumentException("labelName can't be empty.");
+      }
+
+      this.children = children;
+      this.labelName = labelName;
+   }
+
+   /*
+    * (non-Javadoc)
+    * 
+    * @see javafx.event.EventHandler#handle(javafx.event.Event)
+    */
+   @Override
+   public void handle(ActionEvent event)
+   {
+      for (Node node : children)
+      {
+         node.setVisible(false);
+      }
+
+      if (label == null)
+      {
+         label = new Label(labelName);
+         children.add(label);
+      }
+
+      label.setVisible(true);
+   }
+}