1 files changed, 40 insertions, 0 deletions
diff --git a/src/com/isode/stroke/signals/Signal2.java b/src/com/isode/stroke/signals/Signal2.java
new file mode 100644
index 0000000..fa3c4b5
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+++ b/src/com/isode/stroke/signals/Signal2.java
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+/*
+ * Copyright (c) 2010, Isode Limited, London, England.
+ * All rights reserved.
+ */
+
+package com.isode.stroke.signals;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * An approximation of the boost::signals system, although a little more warty.
+ */
+public class Signal2<T1, T2> {
+    private final Map<SignalConnection, Slot2<T1, T2> > binds_ = Collections.synchronizedMap(new HashMap<SignalConnection, Slot2<T1, T2> >());
+    public SignalConnection connect(Slot2<T1, T2> bind) {
+        final SignalConnection connection = new SignalConnection();
+        binds_.put(connection, bind);
+        connection.onDestroyed.connect(new Slot() {
+           public void call() {
+               binds_.remove(connection);
+           }
+        });
+        return connection;
+    }
+
+    public void emit(T1 p1, T2 p2) {
+        ArrayList<Slot2<T1,T2>> binds = new ArrayList<Slot2<T1, T2>>();
+        binds.addAll(binds_.values());
+        for (Slot2<T1, T2> bind : binds) {
+            bind.call(p1, p2);
+        }
+    }
+
+    public void disconnectAll() {
+        binds_.clear();
+    }
+}