diff options
Diffstat (limited to 'indra/llcommon/lleventemitter.h')
| -rw-r--r-- | indra/llcommon/lleventemitter.h | 204 |
1 files changed, 102 insertions, 102 deletions
diff --git a/indra/llcommon/lleventemitter.h b/indra/llcommon/lleventemitter.h index 3663032b8c..0079104715 100644 --- a/indra/llcommon/lleventemitter.h +++ b/indra/llcommon/lleventemitter.h @@ -1,102 +1,102 @@ -/** - * @file lleventemitter.h - * @brief General event emitter class - * - * $LicenseInfo:firstyear=2005&license=viewerlgpl$ - * Second Life Viewer Source Code - * Copyright (C) 2010, Linden Research, Inc. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; - * version 2.1 of the License only. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * - * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA - * $/LicenseInfo$ - */ - -// header guard -#ifndef LL_EVENTEMITTER_H -#define LL_EVENTEMITTER_H - -// standard headers -#include <algorithm> -#include <typeinfo> -#include <iostream> -#include <string> -#include <list> - -#include "stdtypes.h" - -/////////////////////////////////////////////////////////////////////////////// -// templatized emitter class -template < class T > -class eventEmitter -{ - public: - typedef typename T::EventType EventType; - typedef std::list< T* > ObserverContainer; - typedef void ( T::*observerMethod )( const EventType& ); - - protected: - ObserverContainer observers; - - public: - eventEmitter () { }; - - ~eventEmitter () { }; - - /////////////////////////////////////////////////////////////////////////////// - // - bool addObserver ( T* observerIn ) - { - if ( ! observerIn ) - return false; - - // check if observer already exists - if ( std::find ( observers.begin (), observers.end (), observerIn ) != observers.end () ) - return false; - - // save it - observers.push_back ( observerIn ); - - return true; - }; - - /////////////////////////////////////////////////////////////////////////////// - // - bool remObserver ( T* observerIn ) - { - if ( ! observerIn ) - return false; - - observers.remove ( observerIn ); - - return true; - }; - - /////////////////////////////////////////////////////////////////////////////// - // - void update ( observerMethod method, const EventType& msgIn ) - { - typename std::list< T* >::iterator iter = observers.begin (); - - while ( iter != observers.end () ) - { - ( ( *iter )->*method ) ( msgIn ); - - ++iter; - }; - }; -}; - -#endif // lleventemitter_h +/**
+ * @file lleventemitter.h
+ * @brief General event emitter class
+ *
+ * $LicenseInfo:firstyear=2005&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
+ * $/LicenseInfo$
+ */
+
+// header guard
+#ifndef LL_EVENTEMITTER_H
+#define LL_EVENTEMITTER_H
+
+// standard headers
+#include <algorithm>
+#include <typeinfo>
+#include <iostream>
+#include <string>
+#include <list>
+
+#include "stdtypes.h"
+
+///////////////////////////////////////////////////////////////////////////////
+// templatized emitter class
+template < class T >
+class eventEmitter
+{
+ public:
+ typedef typename T::EventType EventType;
+ typedef std::list< T* > ObserverContainer;
+ typedef void ( T::*observerMethod )( const EventType& );
+
+ protected:
+ ObserverContainer observers;
+
+ public:
+ eventEmitter () { };
+
+ ~eventEmitter () { };
+
+ ///////////////////////////////////////////////////////////////////////////////
+ //
+ bool addObserver ( T* observerIn )
+ {
+ if ( ! observerIn )
+ return false;
+
+ // check if observer already exists
+ if ( std::find ( observers.begin (), observers.end (), observerIn ) != observers.end () )
+ return false;
+
+ // save it
+ observers.push_back ( observerIn );
+
+ return true;
+ };
+
+ ///////////////////////////////////////////////////////////////////////////////
+ //
+ bool remObserver ( T* observerIn )
+ {
+ if ( ! observerIn )
+ return false;
+
+ observers.remove ( observerIn );
+
+ return true;
+ };
+
+ ///////////////////////////////////////////////////////////////////////////////
+ //
+ void update ( observerMethod method, const EventType& msgIn )
+ {
+ typename std::list< T* >::iterator iter = observers.begin ();
+
+ while ( iter != observers.end () )
+ {
+ ( ( *iter )->*method ) ( msgIn );
+
+ ++iter;
+ };
+ };
+};
+
+#endif // lleventemitter_h
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