Added Event handling to buttons

git-svn-id: svn://sunsvr01.isp.uni-luebeck.de/swproj13/trunk@16 72836036-5685-4462-b002-a69064685172

1 files changed, 23 insertions, 0 deletions

diff --git a/src/jrummikub/util/Event.java b/src/jrummikub/util/Event.java
new file mode 100644
index 0000000..0b2317f
--- /dev/null
+++ b/src/jrummikub/util/Event.java
@@ -0,0 +1,23 @@
+package jrummikub.util;
+
+import java.util.HashSet;
+
+public class Event implements IEvent {
+  private HashSet<IListener> listeners = new HashSet<IListener>();
+  
+  @Override
+  public void add(IListener listener) {
+    listeners.add(listener);
+  }
+
+  @Override
+  public void remove(IListener listener) {
+    listeners.remove(listener);
+  }
+
+  public void fire() {
+    for (IListener listener : listeners) {
+      listener.fire();
+    }
+  }
+}