src/trans_mgr.h

   1 // -*- C++ -*-
   2 #ifndef Trans_Manager_h
   3 #define Trans_Manager_h
   4
   5 #ifdef __GNUG__
   6 #pragma interface
   7 #endif
   8
   9 #include "tex-accent.h"
  10 #include "trans_decl.h"
  11 #include "chset.h"
  12 #include "LString.h"
  13
  14 class LyXText;
  15 class Trans;
  16
  17 /// Translation State
  18 class TransState {
  19 public:
  20         ///
  21         virtual ~TransState();
  22         ///
  23         virtual string normalkey(char, char *) = 0;
  24         ///
  25         virtual bool backspace() = 0;
  26         ///
  27         virtual string deadkey(char, KmodInfo) = 0;
  28         ///
  29         static char const TOKEN_SEP;
  30 };
  31
  32
  33 /// Translation FSM
  34 class TransFSMData {
  35 protected:
  36         ///
  37         virtual ~TransFSMData() {}
  38         ///
  39         char deadkey_;
  40         ///
  41         KmodInfo deadkey_info_;
  42         ///
  43         char deadkey2_;
  44         ///
  45         KmodInfo deadkey2_info_;
  46         ///
  47         KmodException comb_info_;
  48         ///
  49         TransState * init_state_;
  50         ///
  51         TransState * deadkey_state_;
  52         ///
  53         TransState * combined_state_;
  54         ///
  55 public:
  56         ///
  57         TransFSMData();
  58         ///
  59         TransState * currentState;
  60 };
  61
  62
  63 /// Init State
  64 class TransInitState:
  65         virtual public TransFSMData,
  66         public TransState {
  67 public:
  68                 ///
  69                 TransInitState();
  70                 ///
  71                 virtual string normalkey(char, char *);
  72                 ///
  73                 virtual bool backspace() { return true; }
  74                 ///
  75                 virtual string deadkey(char, KmodInfo);
  76 };
  77
  78
  79 /// Deadkey State
  80 class TransDeadkeyState:
  81         virtual public TransFSMData,
  82         public TransState {
  83 public:
  84                 ///
  85                 TransDeadkeyState();
  86                 ///
  87                 virtual string normalkey(char, char *);
  88                 ///
  89                 virtual bool backspace()
  90         {
  91                 currentState = init_state_;
  92                 return false;
  93         }
  94                 ///
  95                 virtual string deadkey(char, KmodInfo);
  96 };
  97
  98
  99 /// Combined State
 100 class TransCombinedState:
 101         virtual public TransFSMData,
 102         public TransState {
 103 public:
 104                 ///
 105                 TransCombinedState();
 106                 ///
 107                 virtual string normalkey(char, char *);
 108                 ///
 109                 virtual bool backspace()
 110         {
 111                 // cancel the second deadkey
 112                 deadkey2_ = 0;
 113                 deadkey2_info_.accent = TEX_NOACCENT;
 114                 currentState = deadkey_state_;
 115
 116                 return false;
 117         }
 118                 ///
 119                 virtual string deadkey(char, KmodInfo);
 120 };
 121
 122
 123 ///
 124 class TransFSM:
 125         virtual public TransFSMData,
 126         public TransInitState,
 127         public TransDeadkeyState,
 128         public TransCombinedState
 129 {
 130 public:
 131         ///
 132         TransFSM();
 133 };
 134
 135 ///
 136 class TransManager
 137 {
 138 private:
 139         ///
 140         TransFSM trans_fsm_;
 141         ///
 142         Trans * active_;
 143         ///
 144         Trans * t1_;
 145         ///
 146         Trans * t2_;
 147         ///
 148         static Trans * default_;
 149         ///
 150         CharacterSet chset_;
 151         ///
 152         void insert(string, LyXText *);
 153         ///
 154         void insertVerbatim(string const &, LyXText *);
 155 public:
 156         ///
 157         TransManager();
 158         ///
 159         virtual ~TransManager();
 160         ///
 161         int SetPrimary(string const &);
 162         ///
 163         int SetSecondary(string const &);
 164         ///
 165         void EnablePrimary();
 166         ///
 167         void EnableSecondary();
 168         ///
 169         void DisableKeymap();
 170         ///
 171         bool setCharset(const char *);
 172         ///
 173         bool backspace()
 174         {
 175                 return trans_fsm_.currentState->backspace();
 176         }
 177         ///
 178         void TranslateAndInsert(char, LyXText *);
 179         ///
 180         inline string deadkey(char, KmodInfo);
 181         ///
 182         inline string normalkey(char, char *);
 183         ///
 184         void deadkey(char, tex_accent, LyXText *);
 185
 186 };
 187
 188
 189 string TransManager::normalkey(char c, char * t)
 190 {
 191         return trans_fsm_.currentState->normalkey(c, t);
 192 }
 193
 194
 195 string TransManager::deadkey(char c, KmodInfo t)
 196 {
 197         return trans_fsm_.currentState->deadkey(c, t);
 198 }
 199
 200 #endif