00001 // This file is part of ff3d - http://www.freefem.org/ff3d 00002 // Copyright (C) 2001, 2002, 2003 Stéphane Del Pino 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, or (at your option) 00007 // 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 Foundation, 00016 // Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00017 00018 // $Id: FunctionExpressionVariable.hpp,v 1.5 2007/08/02 23:11:55 delpinux Exp $ 00019 00020 #ifndef FUNCTION_EXPRESSION_VARIABLE_HPP 00021 #define FUNCTION_EXPRESSION_VARIABLE_HPP 00022 00023 #include <Variable.hpp> 00024 #include <FunctionExpression.hpp> 00025 00026 #include <ScalarDiscretizationTypeBase.hpp> 00027 00036 class FunctionExpressionVariable 00037 : public FunctionExpression 00038 { 00039 private: 00047 std::ostream& put(std::ostream& os) const; 00048 00049 const std::string __functionName; 00050 00051 ReferenceCounting<FunctionVariable> 00052 __functionVariable; 00054 ScalarDiscretizationTypeBase::Type 00055 __discretizationType; 00058 public: 00065 bool hasBoundaryExpression() const 00066 { 00067 return __functionVariable->expression()->hasBoundaryExpression(); 00068 } 00069 00074 void subscribe() 00075 { 00076 __functionVariable->subscribe(); 00077 } 00078 00083 void unsubscribe() 00084 { 00085 __functionVariable->unsubscribe(); 00086 } 00087 00093 const ScalarDiscretizationTypeBase::Type& 00094 discretizationType() const 00095 { 00096 return __discretizationType; 00097 } 00098 00104 ConstReferenceCounting<FunctionVariable> 00105 variable() const; 00106 00112 ReferenceCounting<FunctionVariable> 00113 variable(); 00114 00119 void execute(); 00120 00127 FunctionExpressionVariable(const std::string& functionName, 00128 const ScalarDiscretizationTypeBase::Type& type 00129 = ScalarDiscretizationTypeBase::lagrangianFEM1); 00130 00136 FunctionExpressionVariable(const FunctionExpressionVariable& functionVariable); 00137 00142 ~FunctionExpressionVariable(); 00143 }; 00144 00145 #endif // FUNCTION_EXPRESSION_VARIABLE_HPP
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