src/felib/config.h

   1 /*
   2  *
   3  *  Iter Vehemens ad Necem (IVAN)
   4  *  Copyright (C) Timo Kiviluoto
   5  *  Released under the GNU General
   6  *  Public License
   7  *
   8  *  See LICENSING which should be included
   9  *  along with this file for more details
  10  *
  11  */
  12 #ifndef __FELIB_CONFIG_H__
  13 #define __FELIB_CONFIG_H__
  14
  15 #include <fstream>
  16
  17 #include "festring.h"
  18
  19
  20 class inputfile;
  21 class felist;
  22 struct configoption;
  23 struct stringoption;
  24 struct numberoption;
  25 struct truthoption;
  26
  27
  28 class configsystem {
  29 public:
  30   static truth Save ();
  31   static truth Load ();
  32   static void Show (void (*)() = 0, void (*)(felist&) = 0, truth = false);
  33   static void AddOption (configoption *);
  34   static void NormalStringDisplayer (const stringoption *, festring &);
  35   static void NormalNumberDisplayer (const numberoption *, festring &);
  36   static void NormalTruthDisplayer (const truthoption *, festring &);
  37   static truth NormalStringChangeInterface (stringoption *);
  38   static truth NormalNumberChangeInterface (numberoption *);
  39   static truth NormalTruthChangeInterface (truthoption *);
  40   static void NormalStringChanger (stringoption *, cfestring &);
  41   static void NormalNumberChanger (numberoption *, sLong);
  42   static void NormalTruthChanger (truthoption *, truth);
  43   static void SetConfigFileName (cfestring &What) { ConfigFileName = What; }
  44
  45 private:
  46   static configoption *Option[MAX_CONFIG_OPTIONS];
  47   static festring ConfigFileName;
  48   static int Options;
  49 };
  50
  51
  52 /* Currently there's no human-readable output option in outputfile, so we're forced to use std::ofstream */
  53 struct configoption {
  54   configoption (cchar *, cchar *);
  55   virtual ~configoption () {}
  56   virtual void SaveValue (std::ofstream &) const = 0;
  57   virtual void LoadValue (inputfile &) = 0;
  58   virtual truth ActivateChangeInterface () = 0;
  59   virtual void DisplayeValue (festring &) const = 0;
  60   cchar *Name;
  61   cchar *Description;
  62 };
  63
  64
  65 struct stringoption : public configoption {
  66   stringoption(cchar*, cchar*, cfestring&,
  67          void (*)(const stringoption*, festring&)
  68          = &configsystem::NormalStringDisplayer,
  69          truth (*)(stringoption*)
  70          = &configsystem::NormalStringChangeInterface,
  71          void (*)(stringoption*, cfestring&)
  72          = &configsystem::NormalStringChanger);
  73   virtual void SaveValue(std::ofstream&) const;
  74   virtual void LoadValue(inputfile&);
  75   virtual void DisplayeValue(festring& Entry) const
  76   { ValueDisplayer(this, Entry); }
  77   virtual truth ActivateChangeInterface() { return ChangeInterface(this); }
  78   void ChangeValue(cfestring& What) { ValueChanger(this, What); }
  79   festring Value;
  80   void (*ValueDisplayer)(const stringoption*, festring&);
  81   truth (*ChangeInterface)(stringoption*);
  82   void (*ValueChanger)(stringoption*, cfestring&);
  83 };
  84
  85 struct numberoption : public configoption
  86 {
  87   numberoption(cchar*, cchar*, sLong,
  88          void (*)(const numberoption*, festring&)
  89          = &configsystem::NormalNumberDisplayer,
  90          truth (*)(numberoption*)
  91          = &configsystem::NormalNumberChangeInterface,
  92          void (*)(numberoption*, sLong)
  93          = &configsystem::NormalNumberChanger);
  94   virtual void SaveValue(std::ofstream&) const;
  95   virtual void LoadValue(inputfile&);
  96   virtual void DisplayeValue(festring& Entry) const
  97   { ValueDisplayer(this, Entry); }
  98   virtual truth ActivateChangeInterface() { return ChangeInterface(this); }
  99   void ChangeValue(sLong What) { ValueChanger(this, What); }
 100   sLong Value;
 101   void (*ValueDisplayer)(const numberoption*, festring&);
 102   truth (*ChangeInterface)(numberoption*);
 103   void (*ValueChanger)(numberoption*, sLong);
 104 };
 105
 106 struct scrollbaroption : public numberoption
 107 {
 108   scrollbaroption(cchar*, cchar*, sLong,
 109       void (*)(const numberoption*, festring&),
 110       truth (*)(numberoption*),
 111       void (*)(numberoption*, sLong)
 112       = &configsystem::NormalNumberChanger,
 113       void (*)(sLong) = 0);
 114   void (*BarHandler)(sLong);
 115 };
 116
 117 struct truthoption : public configoption
 118 {
 119   truthoption(cchar*, cchar*, truth,
 120         void (*)(const truthoption*, festring&)
 121         = &configsystem::NormalTruthDisplayer,
 122         truth (*)(truthoption*)
 123         = &configsystem::NormalTruthChangeInterface,
 124         void (*)(truthoption*, truth)
 125         = &configsystem::NormalTruthChanger);
 126   virtual void SaveValue(std::ofstream&) const;
 127   virtual void LoadValue(inputfile&);
 128   virtual void DisplayeValue(festring& Entry) const
 129   { ValueDisplayer(this, Entry); }
 130   virtual truth ActivateChangeInterface() { return ChangeInterface(this); }
 131   void ChangeValue(truth What) { ValueChanger(this, What); }
 132   truth Value;
 133   void (*ValueDisplayer)(const truthoption*, festring&);
 134   truth (*ChangeInterface)(truthoption*);
 135   void (*ValueChanger)(truthoption*, truth);
 136 };
 137
 138
 139 #endif