Hydrogen - Linux Drum Machine |
00001 /* 00002 * Hydrogen 00003 * Copyright(c) 2002-2003 by Alex >Comix< Cominu [comix@users.sourceforge.net] 00004 * 00005 * http://hydrogen.sourceforge.net 00006 * 00007 * This program is free software; you can redistribute it and/or modify 00008 * it under the terms of the GNU General Public License as published by 00009 * the Free Software Foundation; either version 2 of the License, or 00010 * (at your option) any later version. 00011 * 00012 * This program is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY, without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 * GNU General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU General Public License 00018 * along with this program; if not, write to the Free Software 00019 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00020 * 00021 * $Id: EngineListener.h,v 1.11 2003/06/06 20:57:19 comix Exp $ 00022 * 00023 */ 00024 #ifndef ENGINE_LISTENER 00025 #define ENGINE_LISTENER 00026 00027 #include "Song.h" 00028 00029 #include <string> 00030 using std::string; 00031 00032 //---------------------------------------------------------------------------- 00036 class EngineListener { 00037 public: 00038 virtual void stateChanged(int state) {} 00039 virtual void patternChanged() {} 00040 virtual void noteOn(Note *note) { 00041 delete note; // the note parameter *must* be deleted.. 00042 } 00043 virtual void engineError( string msg ) {} 00044 00045 virtual void midiActivityEvent() {} 00046 }; 00047 00048 00049 #endif 00050