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expression.cpp
00001 /*************************************************************************** 00002 expression.cpp - description 00003 ------------------- 00004 begin : Wed Oct 9 2002 00005 copyright : (C) 2002-2003 by Fungmeista 00006 email : mizunoami44@users.sourceforge.net 00007 ***************************************************************************/ 00008 00009 /*************************************************************************** 00010 * * 00011 * This program is free software; you can redistribute it and/or modify * 00012 * it under the terms of the GNU General Public License as published by * 00013 * the Free Software Foundation; either version 2 of the License, or * 00014 * (at your option) any later version. * 00015 * * 00016 ***************************************************************************/ 00017 00018 #include "expression.h" 00019 00020 #include "fungparser.h" 00021 00022 Expression::Expression(const Expression &e) : 00023 show(e.show), 00024 color(e.color), 00025 #ifdef GLGRAPH 00026 name(e.name), 00027 #endif //GLGRAPH 00028 deleteable(false), 00029 expression1(e.expression1), 00030 expression2(e.expression2), 00031 parsedExpression(e.parsedExpression), 00032 parsedExpression2(e.parsedExpression2) 00033 {} 00034 00035 Expression::Expression(const char * _expression, bool _show, QColor _color) : 00036 show(_show), color(_color), 00037 deleteable(false), 00038 expression1(_expression), 00039 parsedExpression(0), 00040 parsedExpression2(0) 00041 {} 00042 00043 Expression::Expression(const char * _expression2, const char * _expression1, bool _show, QColor _color) : 00044 show(_show), 00045 color(_color), 00046 deleteable(false), 00047 expression1(_expression1), 00048 expression2(_expression2), 00049 parsedExpression(0), 00050 parsedExpression2(0) 00051 {} 00052 00053 #ifdef GLGRAPH 00054 Expression::Expression(std::string & expression, bool _show, QColor _color, GLuint _name) : 00055 show(_show), 00056 color(_color), 00057 name(_name), 00058 deleteable(true), 00059 expression1(expression), 00060 parsedExpression(0), 00061 parsedExpression2(0) 00062 {} 00063 #endif //GLGRAPH 00064 00065 Expression::~Expression() 00066 { 00067 00068 if (deleteable) 00069 { 00070 if (parsedExpression) 00071 delete parsedExpression; 00072 if (parsedExpression2) 00073 delete parsedExpression2; 00074 } 00075 00076 } 00077 00078 std::string Expression::getExpression (const char * functionName) const 00079 { 00080 if ( functionName[0] == 'x' ) 00081 return expression2; 00082 else 00083 return expression1; 00084 } 00085 00086 void Expression::setParsedExpression( FungParser * fp, const char * functionName ) 00087 { 00088 if ( functionName[0] == 'x' ) 00089 parsedExpression2=fp; 00090 else 00091 parsedExpression=fp; 00092 } 00093 00094 FungParser * Expression::getParsedExpression( const char * functionName ) const 00095 { 00096 if ( functionName[0] == 'x' ) 00097 return parsedExpression2; 00098 else 00099 return parsedExpression; 00100 } 00101