src/trans_mgr.C

   1 #include <config.h>
   2
   3 #ifdef __GNUG__
   4 #pragma implementation "trans_mgr.h"
   5 #endif
   6
   7 #include "trans_mgr.h"
   8 #include "trans.h"
   9 #include "lyxtext.h"
  10 #include "LString.h"
  11 #include "debug.h"
  12 #include "chset.h"
  13 #include "insets/insetlatexaccent.h"
  14 #include "BufferView.h"
  15 #include "buffer.h"
  16 #include "lyxrc.h"
  17 #include "support/lstrings.h"
  18
  19 extern LyXRC * lyxrc;
  20 extern string DoAccent(string const &, tex_accent);
  21 extern string DoAccent(char, tex_accent);
  22 extern BufferView * current_view;
  23
  24
  25 // TransFSMData
  26 TransFSMData::TransFSMData()
  27 {
  28         deadkey_ = deadkey2_ = 0;
  29         deadkey_info_.accent = deadkey2_info_.accent = TEX_NOACCENT;
  30         comb_info_ = 0;
  31 }
  32
  33
  34 // TransState
  35 char const TransState::TOKEN_SEP = 4;
  36
  37
  38 // TransInitState
  39 TransInitState::TransInitState()
  40 {
  41         init_state_ = this;
  42 }
  43
  44
  45 string TransInitState::normalkey(char c, char * t)
  46 {
  47         string res;
  48         if (t)  res = t;
  49         else res = c;
  50
  51         return res;
  52 }
  53
  54
  55 string TransInitState::deadkey(char c, KmodInfo d)
  56 {
  57         deadkey_ = c;
  58         deadkey_info_ = d;
  59         currentState = deadkey_state_;
  60         return string();
  61 }
  62
  63
  64 // TransDeadkeyState
  65 TransDeadkeyState::TransDeadkeyState()
  66 {
  67         deadkey_state_ = this;
  68 }
  69
  70
  71 string TransDeadkeyState::normalkey(char c, char * trans)
  72 {
  73         string res;
  74
  75         // Check if it is an exception
  76         KmodException l = deadkey_info_.exception_list;
  77         while(l != 0) {
  78                 if (l->c == c) {
  79                         res = l->data;
  80                         break;
  81                 }
  82                 l = l->next;
  83         }
  84         if (l == 0) {
  85                 // Not an exception. Check if it allowed
  86                 if (current_view->buffer()->params.allowAccents == true ||
  87                     countChar(deadkey_info_.allowed, c) > 0) {
  88                         res = DoAccent(c, deadkey_info_.accent);
  89                 } else {
  90                         // Not allowed
  91                         if (deadkey_!= 0)
  92                                 res = deadkey_;
  93                         res+= TOKEN_SEP;
  94                         res+= trans;
  95                 }
  96         }
  97         currentState = init_state_;
  98         return res;
  99 }
 100
 101
 102 string TransDeadkeyState::deadkey(char c, KmodInfo d)
 103 {
 104         string res;
 105
 106         // Check if the same deadkey was typed twice
 107         if (deadkey_ == c) {
 108                 res = deadkey_;
 109                 deadkey_ = 0;
 110                 deadkey_info_.accent = TEX_NOACCENT;
 111                 currentState = init_state_;
 112                 return res;
 113         }
 114
 115         // Check if it is a combination or an exception
 116         KmodException l;
 117         l = deadkey_info_.exception_list;
 118
 119         while(l) {
 120                 if (l->combined == true && l->accent == d.accent) {
 121                         deadkey2_ = c;
 122                         deadkey2_info_ = d;
 123                         comb_info_ = l;
 124                         currentState = combined_state_;
 125                         return string();
 126                 }
 127                 if (l->c == c) {
 128                         res = l->data;
 129                         deadkey_ = 0;
 130                         deadkey_info_.accent = TEX_NOACCENT;
 131                         currentState = init_state_;
 132                         return res;
 133                 }
 134                 l = l->next;
 135         }
 136
 137         // Not a combination or an exception.
 138         // Output deadkey1 and keep deadkey2
 139
 140         if (deadkey_!= 0)
 141                 res = deadkey_;
 142         deadkey_ = c;
 143         deadkey_info_ = d;
 144         currentState = deadkey_state_;
 145         return res;
 146 }
 147
 148
 149 TransCombinedState::TransCombinedState()
 150 {
 151         combined_state_ = this;
 152 }
 153
 154
 155 string TransCombinedState::normalkey(char c, char * trans)
 156 {
 157         string res;
 158
 159         // Check if the key is allowed on the combination
 160         if (countChar(comb_info_->data, c) > 0) {
 161                 string temp;
 162                 temp = DoAccent(c, deadkey2_info_.accent);
 163                 res = DoAccent(temp, deadkey_info_.accent);
 164                 currentState = init_state_;
 165         } else {
 166                 // Not allowed. Output deadkey1 and check deadkey2 + c
 167                 if (deadkey_ != 0)
 168                         res += deadkey_;
 169                 res += TOKEN_SEP;
 170                 deadkey_ = deadkey2_;
 171                 deadkey_info_ = deadkey2_info_;
 172                 // Call deadkey state and leave it to setup the FSM
 173                 res += deadkey_state_->normalkey(c, trans);
 174         }
 175         return res;
 176 }
 177
 178
 179 string TransCombinedState::deadkey(char c, KmodInfo d)
 180 {
 181         // Third key in a row. Output the first one and
 182         // reenter with shifted deadkeys
 183         string res;
 184         if (deadkey_ != 0)
 185                 res = deadkey_;
 186         res += TOKEN_SEP;
 187         deadkey_ = deadkey2_;
 188         deadkey_info_ = deadkey2_info_;
 189         res += deadkey_state_->deadkey(c, d);
 190         return res;
 191 }
 192
 193
 194 // TransFSM
 195 TransFSM::TransFSM():
 196         TransFSMData(),
 197         TransInitState(),
 198         TransDeadkeyState(),
 199         TransCombinedState()
 200 {
 201         currentState = init_state_;
 202 }
 203
 204
 205 // TransManager
 206
 207 TransManager::TransManager()
 208         : active_(0), t1_(new Trans), t2_(new Trans)
 209 {}
 210
 211
 212 Trans * TransManager::default_ = new Trans;
 213
 214
 215 TransManager::~TransManager()
 216 {
 217         delete t1_;
 218         delete t2_;
 219 }
 220
 221
 222 int TransManager::SetPrimary(string const & language)
 223 {
 224         if (t1_->GetName() == language)
 225                 return 0;
 226
 227         return t1_->Load(language);
 228 }
 229
 230
 231 int TransManager::SetSecondary(string const & language)
 232 {
 233         if (t2_->GetName() == language)
 234                 return 0;
 235
 236         return t2_->Load(language);
 237 }
 238
 239
 240 bool TransManager::setCharset(char const * set)
 241 {
 242         return chset_.loadFile(set);
 243 }
 244
 245
 246 void TransManager::EnablePrimary()
 247 {
 248         if (t1_->IsDefined())
 249                 active_ = t1_;
 250
 251         lyxerr[Debug::KBMAP] << "Enabling primary keymap" << endl;
 252 }
 253
 254
 255 void TransManager::EnableSecondary()
 256 {
 257         if (t2_->IsDefined())
 258                 active_ = t2_;
 259         lyxerr[Debug::KBMAP] << "Enabling secondary keymap" << endl;
 260 }
 261
 262
 263 void TransManager::DisableKeymap()
 264 {
 265         active_ = default_;
 266         lyxerr[Debug::KBMAP] << "Disabling keymap" << endl;
 267 }
 268
 269
 270 void  TransManager::TranslateAndInsert(char c, LyXText * text)
 271 {
 272         string res = active_->process(c, *this);
 273
 274         // Process with tokens
 275         string temp;
 276
 277         while(res.length() > 0) {
 278                 res = split(res, temp, TransState::TOKEN_SEP);
 279                 insert(temp, text);
 280         }
 281 }
 282
 283
 284 void TransManager::insertVerbatim(string const & str, LyXText * text)
 285 {
 286         int l = str.length();
 287
 288         for (int i = 0; i < l; ++i){
 289                 if (str[i] == '\"'
 290                     && text->GetFont(text->cursor.par,
 291                                      text->cursor.pos).latex() == LyXFont::OFF)
 292                         current_view->insertCorrectQuote();
 293                 else
 294                         text->InsertChar(str[i]);
 295         }
 296 }
 297
 298
 299 void TransManager::insert(string str, LyXText * text)
 300 {
 301         // Go through the character encoding only if the current
 302         // encoding (chset_->name()) matches the current font_norm
 303         // (lyrxc->font_norm
 304
 305         // Is false to speak about "only if" the current encoding will
 306         // almost always be equal to font_norm.
 307         pair<bool, int> enc = chset_.encodeString(str);
 308         if (chset_.getName() != lyxrc->font_norm ||
 309             !enc.first) {
 310                 // Could not find an encoding
 311                 InsetLatexAccent ins(str);
 312                 if (ins.CanDisplay()) {
 313                         text->InsertInset(new InsetLatexAccent(ins));
 314                 } else {
 315                         insertVerbatim(str, text);
 316                 }
 317                 return;
 318         }
 319         string tmp; tmp += static_cast<char>(enc.second);
 320         insertVerbatim(tmp, text);
 321 }
 322
 323
 324 void TransManager::deadkey(char c, tex_accent accent, LyXText * t)
 325 {
 326         if (c == 0 && active_ != default_) {
 327                 // A deadkey was pressed that cannot be printed
 328                 // or a accent command was typed in the minibuffer
 329                 KmodInfo i;
 330                 if (active_->isAccentDefined(accent, i) == true) {
 331                         string res = trans_fsm_.currentState->deadkey(c, i);
 332                         insert(res, t);
 333                         return;
 334                 }
 335         }
 336
 337         if (active_ == default_ || c == 0) {
 338                 KmodInfo i;
 339                 i.accent = accent;
 340                 i.allowed = lyx_accent_table[accent].native;
 341                 i.data.clear();
 342                 i.exception_list = 0;
 343
 344                 string res = trans_fsm_.currentState->deadkey(c, i);
 345                 insert(res, t);
 346         } else {
 347                 // Go through the translation
 348                 TranslateAndInsert(c, t);
 349         }
 350 }