From d338e6c003cca84733c7900be256a991790f7018 Mon Sep 17 00:00:00 2001
From: Pavel Labath <pavelo@centrum.sk>
Date: Sat, 9 Jul 2011 23:57:32 +0200
Subject: Signal::connect now also accepts an already-constructed Slot

This way we can use Commands as signal handlers out-of-the-box.
---
 src/FbTk/Signal.hh | 30 +++++++++++++++++++++++++++---
 1 file changed, 27 insertions(+), 3 deletions(-)

diff --git a/src/FbTk/Signal.hh b/src/FbTk/Signal.hh
index 31fd840..7de3893 100644
--- a/src/FbTk/Signal.hh
+++ b/src/FbTk/Signal.hh
@@ -143,6 +143,10 @@ public:
                         new SlotImpl<Functor, void, Arg1, Arg2, Arg3>(functor)
                     ));
     }
+
+    SlotID connect(const RefCount<FbTk::Slot<void, Arg1, Arg2, Arg3> > &slot) {
+        return SignalHolder::connect(slot);
+    }
 };
 
 /// Specialization for two arguments.
@@ -164,6 +168,10 @@ public:
                         new SlotImpl<Functor, void, Arg1, Arg2>(functor)
                     ));
     }
+
+    SlotID connect(const RefCount<FbTk::Slot<void, Arg1, Arg2> > &slot) {
+        return SignalHolder::connect(slot);
+    }
 };
 
 /// Specialization for one argument.
@@ -185,6 +193,10 @@ public:
                         new SlotImpl<Functor, void, Arg1>(functor)
                     ));
     }
+
+    SlotID connect(const RefCount<FbTk::Slot<void, Arg1> > &slot) {
+        return SignalHolder::connect(slot);
+    }
 };
 
 /// Specialization for no arguments.
@@ -206,6 +218,10 @@ public:
                         new SlotImpl<Functor, void>(functor)
                     ));
     }
+
+    SlotID connect(const RefCount<FbTk::Slot<void> > &slot) {
+        return SignalHolder::connect(slot);
+    }
 };
 
 /**
@@ -225,9 +241,17 @@ public:
 
     /// Starts tracking a signal.
     /// @return A tracking ID
-    template <typename Signal, typename Functor>
-    TrackID join(Signal& sig, const Functor& functor) {
-        ValueType value = ValueType(&sig, sig.connect(functor));
+    template<typename Arg1, typename Arg2, typename Arg3, typename Functor>
+    TrackID join(Signal<Arg1, Arg2, Arg3> &sig, const Functor &functor) {
+        return join(sig, RefCount<Slot<void, Arg1, Arg2, Arg3> >(
+                    new SlotImpl<Functor, void, Arg1, Arg2, Arg3>(functor)
+                    ));
+    }
+
+    template<typename Arg1, typename Arg2, typename Arg3>
+    TrackID
+    join(Signal<Arg1, Arg2, Arg3> &sig, const RefCount<Slot<void, Arg1, Arg2, Arg3> > &slot) {
+        ValueType value = ValueType(&sig, sig.connect(slot));
         std::pair<TrackID, bool> ret = m_connections.insert(value);
         if ( !ret.second ) {
             // failed to insert this functor
-- 
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