Restoring link change signal.

src/comm/LinkConfiguration.cc

@@ -158,5 +158,8 @@ void LinkConfiguration::setName(const QString name)
 
 void LinkConfiguration::setLink(LinkInterface* link)
 {
-    _link = link;
+    if(_link != link) {
+        _link = link;
+        emit linkChanged(link);
+    }
 }

src/comm/LinkConfiguration.h

@@ -28,7 +28,7 @@ public:
     virtual ~LinkConfiguration() {}
 
     Q_PROPERTY(QString          name                READ name           WRITE setName           NOTIFY nameChanged)
-    Q_PROPERTY(LinkInterface*   link                READ link           WRITE setLink)
+    Q_PROPERTY(LinkInterface*   link                READ link           WRITE setLink           NOTIFY linkChanged)
     Q_PROPERTY(LinkType         linkType            READ type                                   CONSTANT)
     Q_PROPERTY(bool             dynamic             READ isDynamic      WRITE setDynamic        NOTIFY dynamicChanged)
     Q_PROPERTY(bool             autoConnect         READ isAutoConnect  WRITE setAutoConnect    NOTIFY autoConnectChanged)
@@ -180,6 +180,7 @@ signals:
     void nameChanged        (const QString& name);
     void dynamicChanged     ();
     void autoConnectChanged ();
+    void linkChanged        (LinkInterface* link);
 
 protected:
     LinkInterface* _link; ///< Link currently using this configuration (if any)