Marsyas
0.6.0-alpha
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00001 /* 00002 ** Copyright (C) 1998-2006 George Tzanetakis <gtzan@cs.uvic.ca> 00003 ** 00004 ** This program is free software; you can redistribute it and/or modify 00005 ** it under the terms of the GNU General Public License as published by 00006 ** the Free Software Foundation; either version 2 of the License, or 00007 ** (at your option) any later version. 00008 ** 00009 ** This program is distributed in the hope that it will be useful, 00010 ** but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 ** GNU General Public License for more details. 00013 ** 00014 ** You should have received a copy of the GNU General Public License 00015 ** along with this program; if not, write to the Free Software 00016 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00017 */ 00018 00019 //#ifndef __MARCONTROL__ 00020 //#error Do not include this file directly, include only MarControl.h 00021 //#endif 00022 00023 #include <marsyas/system/MarControl.h> 00024 00025 namespace Marsyas 00026 { 00032 class MarControlAccessor 00033 { 00034 private: 00035 MarControlPtr ctrl_; 00036 bool update_; 00037 bool readOnlyAccess_; 00038 00039 public: 00040 MarControlAccessor(MarControlPtr ctrl, bool update = true, bool readOnlyAccess = false) 00041 { 00042 ctrl_ = ctrl; 00043 update_ = update; 00044 readOnlyAccess_ = readOnlyAccess; 00045 } 00046 00047 ~MarControlAccessor() 00048 { 00049 #ifdef MARSYAS_TRACECONTROLS 00050 ctrl_->value_->setDebugValue(); 00051 #endif 00052 00053 if(update_) 00054 ctrl_->value_->callMarSystemsUpdate(); 00055 } 00056 00057 void enableUpdates() {update_ = true;}; 00058 void disableUpdates() {update_ = false;}; 00059 00060 template<class T> T& to() 00061 { 00062 return const_cast<T&>(ctrl_->to<T>()); 00063 } 00064 }; 00065 } 00066