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0001 /*************************************************************************** 0002 cvariablelist.h - list of variables 0003 ------------------- 0004 begin : Po sep 8 2003 0005 copyright : (C) 2003-2008 by Tomas Mecir 0006 email : kmuddy@kmuddy.com 0007 ***************************************************************************/ 0008 0009 /*************************************************************************** 0010 * * 0011 * This program is free software; you can redistribute it and/or modify * 0012 * it under the terms of the GNU General Public License as published by * 0013 * the Free Software Foundation; either version 2 of the License, or * 0014 * (at your option) any later version. * 0015 * * 0016 ***************************************************************************/ 0017 0018 #ifndef CVARIABLELIST_H 0019 #define CVARIABLELIST_H 0020 0021 #include <map> 0022 0023 #include <cactionbase.h> 0024 #include <kmuddy_export.h> 0025 0026 class cCmdQueue; 0027 class cVariable; 0028 class cValue; 0029 /** 0030 This class represents the list of variables. 0031 *@author Tomas Mecir 0032 */ 0033 0034 class KMUDDY_EXPORT cVariableList : public cActionBase { 0035 public: 0036 cVariableList (int sess); 0037 ~cVariableList () override; 0038 QString getValue (const QString &varname); 0039 int getIntValue (const QString &varname); 0040 /** Retrieve a variable value. If queue is given, attempts to get local 0041 variable value first, if one exists. */ 0042 cValue *value (const QString &varname, cCmdQueue *queue = nullptr); 0043 /** as above, but if value doesn't exist, it gets created */ 0044 cValue *valueNotEmpty (const QString &varname, cCmdQueue *queue = nullptr); 0045 bool exists (const QString &varname); 0046 void set (const QString &varname, const QString &value); 0047 void set (const QString &varname, cValue *value); 0048 void unset (const QString &varname); 0049 /** increases value by delta */ 0050 void inc (const QString &varname, double delta); 0051 /** decreases value by delta; value can become negative */ 0052 void dec (const QString &varname, double delta); 0053 /** resource support; provides one unit of a resource */ 0054 void provideResource (const QString &varname); 0055 /** resource support; requests one resource, if available */ 0056 bool requestResource (const QString &varname); 0057 QStringList getList (); 0058 /** expand all variables in the string and return the result */ 0059 QString expandVariables (const QString &string, bool recursive = true, cCmdQueue *queue = nullptr); 0060 0061 void save (); 0062 private: 0063 void load (); 0064 0065 QString doExpandVariables (const QString &string, int recursionCounter, cCmdQueue *queue); 0066 QString processVariable (const QString &varname, cCmdQueue *queue = nullptr); 0067 /** variable mapping, used to store the variables */ 0068 std::map<QString, cVariable *> vars; 0069 }; 0070 0071 #endif