src/mathed/math_matrixinset.C

   1 #include <config.h>
   2
   3 #ifdef __GNUG__
   4 #pragma implementation
   5 #endif
   6
   7 #include "math_matrixinset.h"
   8 #include "debug.h"
   9 #include "support/LOstream.h"
  10 #include "Painter.h"
  11 #include "LaTeXFeatures.h"
  12
  13
  14 LyXFont WhichFont(short type, int size);
  15
  16 namespace {
  17
  18 string getAlign(short int type, int cols)
  19 {
  20         string align;
  21         switch (type) {
  22                 case LM_OT_ALIGN:
  23                         for (int i = 0; i < cols; ++i)
  24                                 align += "Rl";
  25                         break;
  26
  27                 case LM_OT_ALIGNAT:
  28                         for (int i = 0; i < cols; ++i)
  29                                 align += "rl";
  30                         break;
  31
  32                 case LM_OT_MULTLINE:
  33                         align = "C";
  34                         break;
  35
  36                 default:
  37                         align = "rcl";
  38                         break;
  39         }
  40         return align;
  41 }
  42
  43
  44 string star(bool n)
  45 {
  46         return n ? "" : "*";
  47 }
  48
  49 int getCols(short int type)
  50 {
  51         int col;
  52         switch (type) {
  53                 case LM_OT_EQNARRAY:
  54                         col = 3;
  55                         break;
  56
  57                 case LM_OT_ALIGN:
  58                 case LM_OT_ALIGNAT:
  59                         col = 2;
  60                         break;
  61
  62                 default:
  63                         col = 1;
  64         }
  65         return col;
  66 }
  67
  68 }
  69
  70 MathMatrixInset::MathMatrixInset(MathInsetTypes t)
  71         : MathGridInset(getCols(t), 1, "formula", t), nonum_(1), label_(1)
  72 {}
  73
  74
  75 MathMatrixInset::MathMatrixInset()
  76         : MathGridInset(1, 1, "formula", LM_OT_SIMPLE), nonum_(1), label_(1)
  77 {}
  78
  79 MathInset * MathMatrixInset::Clone() const
  80 {
  81         return new MathMatrixInset(*this);
  82 }
  83
  84
  85 void MathMatrixInset::Metrics(MathStyles st)
  86 {
  87         size_ = st;
  88         //LyXFont wfont = WhichFont(LM_TC_BF, size());
  89         //wfont.setLatex(LyXFont::OFF);
  90
  91         // let the cells adjust themselves
  92         MathGridInset::Metrics(st);
  93
  94         if (display()) {
  95                 ascent_  += 12;
  96                 descent_ += 12;
  97         }
  98
  99         if (numberedType()) {
 100                 int l = 0;
 101                 for (int row = 0; row < nrows(); ++row)
 102                         l = max(l, mathed_string_width(LM_TC_TEXTRM, size(), nicelabel(row)));
 103
 104                 if (l)
 105                         width_ += 30 + l;
 106         }
 107 }
 108
 109
 110 void MathMatrixInset::draw(Painter & pain, int x, int y)
 111 {
 112         xo(x);
 113         yo(y);
 114
 115         MathGridInset::draw(pain, x, y);
 116
 117         if (numberedType()) {
 118                 LyXFont wfont = WhichFont(LM_TC_BF, size());
 119 #ifndef NO_LATEX
 120                 wfont.setLatex(LyXFont::OFF);
 121 #endif
 122                 int xx = x + colinfo_.back().offset_ + colinfo_.back().width_ + 20;
 123                 for (int row = 0; row < nrows(); ++row)
 124                         pain.text(xx, y + rowinfo_[row].offset_, nicelabel(row), wfont);
 125         }
 126 }
 127
 128
 129 void MathMatrixInset::Write(std::ostream & os, bool fragile) const
 130 {
 131   header_write(os);
 132
 133         bool n = numberedType();
 134
 135         for (int row = 0; row < nrows(); ++row) {
 136                 if (row)
 137                         os << " \\\\\n";
 138                 for (int col = 0; col < ncols(); ++col) {
 139                         if (col)
 140                                 os << " & ";
 141                         cell(index(row, col)).Write(os, fragile);
 142                 }
 143                 if (n) {
 144                         if (!label_[row].empty())
 145                                 os << "\\label{" << label_[row] << "}";
 146                         if (nonum_[row])
 147                                 os << "\\nonumber ";
 148                 }
 149         }
 150
 151   footer_write(os);
 152 }
 153
 154
 155 string MathMatrixInset::label(int row) const
 156 {
 157         return label_[row];
 158 }
 159
 160 void MathMatrixInset::label(int row, string const & label)
 161 {
 162         label_[row] = label;
 163 }
 164
 165
 166 void MathMatrixInset::numbered(int row, bool num)
 167 {
 168         nonum_[row] = !num;
 169 }
 170
 171
 172 bool MathMatrixInset::numbered(int row) const
 173 {
 174         return !nonum_[row];
 175 }
 176
 177
 178 bool MathMatrixInset::ams() const
 179 {
 180         return true;
 181 }
 182
 183
 184 bool MathMatrixInset::display() const
 185 {
 186         return GetType() != LM_OT_SIMPLE;
 187 }
 188
 189
 190 vector<string> const MathMatrixInset::getLabelList() const
 191 {
 192         std::vector<string> res;
 193         for (int row = 0; row < nrows(); ++row)
 194                 if (!label_[row].empty() && nonum_[row] != 1)
 195                         res.push_back(label_[row]);
 196         return res;
 197 }
 198
 199
 200 bool MathMatrixInset::numberedType() const
 201 {
 202         if (GetType() == LM_OT_SIMPLE)
 203                 return false;
 204         for (int row = 0; row < nrows(); ++row)
 205                 if (!nonum_[row])
 206                         return true;
 207         return false;
 208 }
 209
 210
 211 void MathMatrixInset::Validate(LaTeXFeatures & features)
 212 {
 213         features.amsstyle = ams();
 214
 215         // Validation is necessary only if not using AMS math.
 216         // To be safe, we will always run mathedValidate.
 217         //if (features.amsstyle)
 218         //  return;
 219
 220         //Validate1(features);
 221
 222         features.boldsymbol = true;
 223         features.binom      = true;
 224 }
 225
 226 /*
 227 void MathMatrixInset::Validate1(LaTeXFeatures & features)
 228 {
 229         MathIter it(cell());
 230
 231         while (it.OK() && !(features.binom && features.boldsymbol)) {
 232                 MathInset * p = it.GetInset();
 233                 if (p) {
 234                         p = it.GetActiveInset();
 235                         if (p) {
 236                                 if (!features.binom && p->GetType() == LM_OT_MACRO &&
 237                                     p->name() == "binom") {
 238                                         features.binom = true;
 239                                 } else {
 240                                         for (int i = 0; i <= p->getMaxArgumentIdx(); ++i) {
 241                                                 p->setArgumentIdx(i);
 242                                                 Validate1(features, p);
 243                                         }
 244                                 }
 245                         } else {
 246                                 if (!features.boldsymbol && p->name() == "boldsymbol")
 247                                         features.boldsymbol = true;
 248                         }
 249                 }
 250                 it.Next();
 251         }
 252 }
 253 */
 254
 255
 256 void MathMatrixInset::header_write(ostream & os) const
 257 {
 258         bool n = numberedType();
 259
 260         switch (GetType()) {
 261                 case LM_OT_SIMPLE:
 262                         os << "\\(";
 263                         break;
 264
 265                 case LM_OT_EQUATION:
 266                         if (n)
 267                                 os << "\\begin{equation" << star(n) << "}\n";
 268                         else
 269                                 os << "\\[\n";
 270                         break;
 271
 272                 case LM_OT_EQNARRAY:
 273                         os << "\\begin{eqnarray" << star(n) << "}\n";
 274                         break;
 275
 276                 case LM_OT_ALIGN:
 277                         os << "\\begin{align" << star(n) << "}";
 278                         break;
 279
 280                 case LM_OT_ALIGNAT:
 281                         os << "\\begin{alignat" << star(n) << "}"
 282                            << "{" << ncols()/2 << "}\n";
 283                         break;
 284         }
 285 }
 286
 287
 288 void MathMatrixInset::footer_write(ostream & os) const
 289 {
 290         bool n = numberedType();
 291
 292         switch (GetType()) {
 293                 case LM_OT_SIMPLE:
 294                         os << "\\)";
 295                         break;
 296
 297                 case LM_OT_EQUATION:
 298                         if (n)
 299                                 os << "\\end{equation" << star(n) << "}\n";
 300                         else
 301                                 os << "\\]\n";
 302                         break;
 303
 304                 case LM_OT_EQNARRAY:
 305                         os << "\\end{eqnarray" << star(n) << "}\n";
 306                         break;
 307
 308                 case LM_OT_ALIGN:
 309                         os << "\\end{align" << star(n) << "}\n";
 310                         break;
 311
 312                 case LM_OT_ALIGNAT:
 313                         os << "\\end{alignat" << star(n) << "}\n";
 314                         break;
 315         }
 316 }
 317
 318
 319 void MathMatrixInset::addRow(int row)
 320 {
 321         nonum_.insert(nonum_.begin() + row + 1, !numberedType());
 322         label_.insert(label_.begin() + row + 1, string());
 323         MathGridInset::addRow(row);
 324 }
 325
 326 void MathMatrixInset::appendRow()
 327 {
 328         nonum_.push_back(!numberedType());
 329         label_.push_back(string());
 330         MathGridInset::appendRow();
 331 }
 332
 333
 334 void MathMatrixInset::delRow(int row)
 335 {
 336         MathGridInset::delRow(row);
 337         nonum_.erase(nonum_.begin() + row);
 338         label_.erase(label_.begin() + row);
 339 }
 340
 341 void MathMatrixInset::addCol(int col)
 342 {
 343         switch (GetType()) {
 344                 case LM_OT_EQUATION:
 345                         mutate(LM_OT_EQNARRAY);
 346                         break;
 347
 348                 case LM_OT_EQNARRAY:
 349                         mutate(LM_OT_ALIGN);
 350                         addCol(col);
 351                         break;
 352
 353                 case LM_OT_ALIGN:
 354                 case LM_OT_ALIGNAT:
 355                         MathGridInset::addCol(col);
 356                         halign(col, 'l');
 357                         MathGridInset::addCol(col);
 358                         halign(col, 'r');
 359                         break;
 360
 361                 default:
 362                         break;
 363         }
 364 }
 365
 366 void MathMatrixInset::delCol(int col)
 367 {
 368         switch (GetType()) {
 369                 case LM_OT_ALIGN:
 370                         MathGridInset::delCol(col);
 371                         break;
 372
 373                 default:
 374                         break;
 375         }
 376 }
 377
 378 void MathMatrixInset::breakLine()
 379 {
 380         if (GetType() == LM_OT_SIMPLE || GetType() == LM_OT_EQUATION)
 381                 mutate(LM_OT_EQNARRAY);
 382         addRow(nrows() - 1);
 383 }
 384
 385
 386 void MathMatrixInset::splitCell(int idx)
 387 {
 388         if (idx == nargs() - 1) {
 389                 lyxerr << "can't split last cell\n";
 390                 return;
 391         }
 392
 393         lyxerr << "unimplemented\n";
 394 }
 395
 396
 397 string MathMatrixInset::nicelabel(int row) const
 398 {
 399         if (nonum_[row])
 400                 return string();
 401         if (label_[row].empty())
 402                 return string("(#)");
 403         return "(" + label_[row] + ")";
 404 }
 405
 406
 407 namespace {
 408         short typecode(string const & s)
 409         {
 410                 if (s == "equation")
 411                         return LM_OT_EQUATION;
 412                 if (s == "display")
 413                         return LM_OT_EQUATION;
 414                 if (s == "eqnarray")
 415                         return LM_OT_EQNARRAY;
 416                 if (s == "align")
 417                         return LM_OT_ALIGN;
 418                 if (s == "xalign")
 419                         return LM_OT_XALIGN;
 420                 if (s == "xxalign")
 421                         return LM_OT_XXALIGN;
 422                 if (s == "multline")
 423                         return LM_OT_MULTLINE;
 424                 return LM_OT_SIMPLE;
 425         }
 426 }
 427
 428 void MathMatrixInset::mutate(string const & newtype)
 429 {
 430         if (newtype == "dump") {
 431                 dump();
 432                 return;
 433         }
 434         //lyxerr << "mutating from '" << GetType() << "' to '" << newtype << "'\n";
 435         mutate(typecode(newtype));
 436 }
 437
 438 void MathMatrixInset::glueall()
 439 {
 440         MathArray ar;
 441         for (int i = 0; i < nargs(); ++i)
 442                 ar.push_back(cell(i));
 443         *this = MathMatrixInset(LM_OT_SIMPLE);
 444         cell(0) = ar;
 445 }
 446
 447 void MathMatrixInset::mutate(short newtype)
 448 {
 449         //lyxerr << "mutating from '" << GetType() << "' to '" << newtype << "'\n";
 450
 451         if (newtype == GetType())
 452                 return;
 453
 454         switch (GetType()) {
 455                 case LM_OT_SIMPLE:
 456                         SetType(LM_OT_EQUATION);
 457                         numbered(false);
 458                         mutate(newtype);
 459                         break;
 460
 461                 case LM_OT_EQUATION:
 462                         switch (newtype) {
 463                                 case LM_OT_SIMPLE:
 464                                         SetType(LM_OT_SIMPLE);
 465                                         break;
 466
 467                                 case LM_OT_ALIGN:
 468                                         MathGridInset::addCol(1);
 469                                         halign("rl");
 470                                         SetType(LM_OT_ALIGN);
 471                                         break;
 472
 473                                 default:
 474                                         MathGridInset::addCol(1);
 475                                         MathGridInset::addCol(1);
 476                                         halign("rcl");
 477                                         SetType(LM_OT_EQNARRAY);
 478                                         mutate(newtype);
 479                                         break;
 480                                 }
 481                         break;
 482
 483                 case LM_OT_EQNARRAY:
 484                         switch (newtype) {
 485                                 case LM_OT_SIMPLE:
 486                                         glueall();
 487                                         break;
 488
 489                                 case LM_OT_EQUATION:
 490                                         if (nrows() == 1) {
 491                                                 MathGridInset::delCol(2);
 492                                                 MathGridInset::delCol(1);
 493                                                 SetType(LM_OT_EQUATION);
 494                                                 mutate(newtype);
 495                                         } else
 496                                                 lyxerr << "need to delete rows first\n";
 497                                         break;
 498
 499                                 case LM_OT_ALIGN:
 500                                 default:
 501                                         for (int row = 0; row < nrows(); ++row) {
 502                                                 int c = 3 * row + 1;
 503                                                 cell(c).push_back(cell(c + 1));
 504                                         }
 505                                         MathGridInset::delCol(2);
 506                                         SetType(LM_OT_ALIGN);
 507                                         halign("rl");
 508                                         mutate(newtype);
 509                                         break;
 510                         }
 511                         break;
 512
 513                 case LM_OT_ALIGN:
 514                         switch (newtype) {
 515                                 case LM_OT_SIMPLE:
 516                                 case LM_OT_EQUATION:
 517                                 case LM_OT_EQNARRAY:
 518                                         MathGridInset::addCol(1);
 519                                         SetType(LM_OT_EQNARRAY);
 520                                         halign("lrl");
 521                                         mutate(newtype);
 522                                         break;
 523
 524                                 default:
 525                                         lyxerr << "mutation from '" << GetType()
 526                                                 << "' to '" << newtype << "' not implemented\n";
 527                                         break;
 528                         }
 529                         break;
 530
 531                 default:
 532                         lyxerr << "mutation from '" << GetType()
 533                                 << "' to '" << newtype << "' not implemented\n";
 534         }
 535 }