src/paragraph.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2001 The LyX Team.
   8  *
   9  * ====================================================== */
  10
  11 #include <config.h>
  12
  13 #ifdef __GNUG__
  14 #pragma implementation
  15 #endif
  16
  17 #include "paragraph.h"
  18 #include "paragraph_pimpl.h"
  19 #include "lyxrc.h"
  20 #include "layout.h"
  21 #include "language.h"
  22 #include "tex-strings.h"
  23 #include "buffer.h"
  24 #include "bufferparams.h"
  25 #include "debug.h"
  26 #include "texrow.h"
  27 #include "BufferView.h"
  28 #include "encoding.h"
  29 #include "ParameterStruct.h"
  30 #include "gettext.h"
  31
  32 #include "insets/insetinclude.h"
  33 #include "insets/insetbib.h"
  34 #include "insets/insettext.h"
  35
  36 #include "support/filetools.h"
  37 #include "support/lstrings.h"
  38 #include "support/lyxmanip.h"
  39 #include "support/FileInfo.h"
  40 #include "support/LAssert.h"
  41 #include "support/textutils.h"
  42
  43 #include <algorithm>
  44 #include <fstream>
  45 #include <csignal>
  46
  47 using std::ostream;
  48 using std::endl;
  49 using std::fstream;
  50 using std::ios;
  51 using std::lower_bound;
  52 using std::upper_bound;
  53 using std::reverse;
  54
  55 using lyx::pos_type;
  56
  57 // this is a bad idea, but how can Paragraph find its buffer to get
  58 // parameters? (JMarc)
  59
  60 extern string bibitemWidest(Buffer const *);
  61
  62 // this is a minibuffer
  63
  64 namespace {
  65
  66 char minibuffer_char;
  67 LyXFont minibuffer_font;
  68 Inset * minibuffer_inset;
  69
  70 } // namespace anon
  71
  72
  73 extern BufferView * current_view;
  74
  75
  76 Paragraph::Paragraph()
  77         : pimpl_(new Paragraph::Pimpl(this))
  78 {
  79 #ifndef NO_NEXT
  80         next_ = 0;
  81         previous_ = 0;
  82 #endif
  83         enumdepth = 0;
  84         itemdepth = 0;
  85         bibkey = 0; // ale970302
  86         params().clear();
  87 }
  88
  89
  90 #ifndef NO_NEXT
  91 // This constructor inserts the new paragraph in a list.
  92 Paragraph::Paragraph(Paragraph * par)
  93         : pimpl_(new Paragraph::Pimpl(this))
  94 {
  95         enumdepth = 0;
  96         itemdepth = 0;
  97
  98         // double linked list begin
  99         next_ = par->next_;
 100         if (next_)
 101                 next_->previous_ = this;
 102         previous_ = par;
 103         previous_->next_ = this;
 104         // end
 105
 106         bibkey = 0; // ale970302
 107         params().clear();
 108 }
 109 #endif
 110
 111
 112 Paragraph::Paragraph(Paragraph const & lp, bool same_ids)
 113         : pimpl_(new Paragraph::Pimpl(*lp.pimpl_, this, same_ids))
 114 {
 115         enumdepth = 0;
 116         itemdepth = 0;
 117 #ifndef NO_NEXT
 118         next_     = 0;
 119         previous_ = 0;
 120 #endif
 121         // this is because of the dummy layout of the paragraphs that
 122         // follow footnotes
 123         layout_ = lp.layout();
 124
 125         // ale970302
 126         if (lp.bibkey) {
 127                 bibkey = static_cast<InsetBibKey *>
 128                         (lp.bibkey->clone(*current_view->buffer()));
 129         } else {
 130                 bibkey = 0;
 131         }
 132
 133         // copy everything behind the break-position to the new paragraph
 134         insetlist = lp.insetlist;
 135         InsetList::iterator it = insetlist.begin();
 136         InsetList::iterator end = insetlist.end();
 137         for (; it != end; ++it) {
 138                 it.setInset(it.getInset()->clone(*current_view->buffer(),
 139                                                  same_ids));
 140                 // tell the new inset who is the boss now
 141                 it.getInset()->parOwner(this);
 142         }
 143 }
 144
 145
 146 // the destructor removes the new paragraph from the list
 147 Paragraph::~Paragraph()
 148 {
 149 #ifndef NO_NEXT
 150         if (previous_)
 151                 previous_->next_ = next_;
 152         if (next_)
 153                 next_->previous_ = previous_;
 154 #endif
 155
 156         // ale970302
 157         delete bibkey;
 158
 159         delete pimpl_;
 160         //
 161         //lyxerr << "Paragraph::paragraph_id = "
 162         //       << Paragraph::paragraph_id << endl;
 163 }
 164
 165
 166 void Paragraph::write(Buffer const * buf, ostream & os,
 167                           BufferParams const & bparams,
 168                           depth_type dth) const
 169 {
 170         // The beginning or end of a deeper (i.e. nested) area?
 171         if (dth != params().depth()) {
 172                 if (params().depth() > dth) {
 173                         while (params().depth() > dth) {
 174                                 os << "\n\\begin_deeper ";
 175                                 ++dth;
 176                         }
 177                 } else {
 178                         while (params().depth() < dth) {
 179                                 os << "\n\\end_deeper ";
 180                                 --dth;
 181                         }
 182                 }
 183         }
 184
 185         // First write the layout
 186         os << "\n\\layout " << layout()->name() << "\n";
 187
 188         // Maybe some vertical spaces.
 189         if (params().spaceTop().kind() != VSpace::NONE)
 190                 os << "\\added_space_top "
 191                    << params().spaceTop().asLyXCommand() << " ";
 192         if (params().spaceBottom().kind() != VSpace::NONE)
 193                 os << "\\added_space_bottom "
 194                    << params().spaceBottom().asLyXCommand() << " ";
 195
 196         // Maybe the paragraph has special spacing
 197         params().spacing().writeFile(os, true);
 198
 199         // The labelwidth string used in lists.
 200         if (!params().labelWidthString().empty())
 201                 os << "\\labelwidthstring "
 202                    << params().labelWidthString() << '\n';
 203
 204         // Lines above or below?
 205         if (params().lineTop())
 206                 os << "\\line_top ";
 207         if (params().lineBottom())
 208                 os << "\\line_bottom ";
 209
 210         // Pagebreaks above or below?
 211         if (params().pagebreakTop())
 212                 os << "\\pagebreak_top ";
 213         if (params().pagebreakBottom())
 214                 os << "\\pagebreak_bottom ";
 215
 216         // Start of appendix?
 217         if (params().startOfAppendix())
 218                 os << "\\start_of_appendix ";
 219
 220         // Noindent?
 221         if (params().noindent())
 222                 os << "\\noindent ";
 223
 224         // Do we have a manual left indent?
 225         if (!params().leftIndent().zero())
 226                 os << "\\leftindent " << params().leftIndent().asString() << " ";
 227
 228         // Alignment?
 229         if (params().align() != LYX_ALIGN_LAYOUT) {
 230                 int h = 0;
 231                 switch (params().align()) {
 232                 case LYX_ALIGN_LEFT: h = 1; break;
 233                 case LYX_ALIGN_RIGHT: h = 2; break;
 234                 case LYX_ALIGN_CENTER: h = 3; break;
 235                 default: h = 0; break;
 236                 }
 237                 os << "\\align " << string_align[h] << " ";
 238         }
 239
 240         // bibitem  ale970302
 241         if (bibkey)
 242                 bibkey->write(buf, os);
 243
 244         LyXFont font1(LyXFont::ALL_INHERIT, bparams.language);
 245
 246         int column = 0;
 247         for (pos_type i = 0; i < size(); ++i) {
 248                 if (!i) {
 249                         os << "\n";
 250                         column = 0;
 251                 }
 252
 253                 // Write font changes
 254                 LyXFont font2 = getFontSettings(bparams, i);
 255                 if (font2 != font1) {
 256 #ifndef INHERIT_LANGUAGE
 257                         font2.lyxWriteChanges(font1, os);
 258 #else
 259                         font2.lyxWriteChanges(font1, bparams.language, os);
 260 #endif
 261                         column = 0;
 262                         font1 = font2;
 263                 }
 264
 265                 value_type const c = getChar(i);
 266                 switch (c) {
 267                 case META_INSET:
 268                 {
 269                         Inset const * inset = getInset(i);
 270                         if (inset)
 271                                 if (inset->directWrite()) {
 272                                         // international char, let it write
 273                                         // code directly so it's shorter in
 274                                         // the file
 275                                         inset->write(buf, os);
 276                                 } else {
 277                                         os << "\n\\begin_inset ";
 278                                         inset->write(buf, os);
 279                                         os << "\n\\end_inset \n\n";
 280                                         column = 0;
 281                                 }
 282                 }
 283                 break;
 284                 case META_NEWLINE:
 285                         os << "\n\\newline \n";
 286                         column = 0;
 287                         break;
 288                 case META_HFILL:
 289                         os << "\n\\hfill \n";
 290                         column = 0;
 291                         break;
 292                 case '\\':
 293                         os << "\n\\backslash \n";
 294                         column = 0;
 295                         break;
 296                 case '.':
 297                         if (i + 1 < size() && getChar(i + 1) == ' ') {
 298                                 os << ".\n";
 299                                 column = 0;
 300                         } else
 301                                 os << ".";
 302                         break;
 303                 default:
 304                         if ((column > 70 && c == ' ')
 305                             || column > 79) {
 306                                 os << "\n";
 307                                 column = 0;
 308                         }
 309                         // this check is to amend a bug. LyX sometimes
 310                         // inserts '\0' this could cause problems.
 311                         if (c != '\0')
 312                                 os << c;
 313                         else
 314                                 lyxerr << "ERROR (Paragraph::writeFile):"
 315                                         " NULL char in structure." << endl;
 316                         ++column;
 317                         break;
 318                 }
 319         }
 320 }
 321
 322
 323 void Paragraph::validate(LaTeXFeatures & features) const
 324 {
 325         pimpl_->validate(features, *layout());
 326 }
 327
 328
 329 // First few functions needed for cut and paste and paragraph breaking.
 330 void Paragraph::copyIntoMinibuffer(Buffer const & buffer, pos_type pos) const
 331 {
 332         BufferParams bparams = buffer.params;
 333
 334         minibuffer_char = getChar(pos);
 335         minibuffer_font = getFontSettings(bparams, pos);
 336         minibuffer_inset = 0;
 337         if (minibuffer_char == Paragraph::META_INSET) {
 338                 if (getInset(pos)) {
 339                         minibuffer_inset = getInset(pos)->clone(buffer);
 340                 } else {
 341                         minibuffer_inset = 0;
 342                         minibuffer_char = ' ';
 343                         // This reflects what GetInset() does (ARRae)
 344                 }
 345         }
 346 }
 347
 348
 349 void Paragraph::cutIntoMinibuffer(BufferParams const & bparams, pos_type pos)
 350 {
 351         minibuffer_char = getChar(pos);
 352         minibuffer_font = getFontSettings(bparams, pos);
 353         minibuffer_inset = 0;
 354         if (minibuffer_char == Paragraph::META_INSET) {
 355                 if (getInset(pos)) {
 356                         // the inset is not in a paragraph anymore
 357                         minibuffer_inset = insetlist.release(pos);
 358                         minibuffer_inset->parOwner(0);
 359                 } else {
 360                         minibuffer_inset = 0;
 361                         minibuffer_char = ' ';
 362                         // This reflects what GetInset() does (ARRae)
 363                 }
 364
 365         }
 366
 367         // Erase(pos); now the caller is responsible for that.
 368 }
 369
 370
 371 bool Paragraph::insertFromMinibuffer(pos_type pos)
 372 {
 373         if (minibuffer_char == Paragraph::META_INSET) {
 374                 if (!insetAllowed(minibuffer_inset->lyxCode())) {
 375                         return false;
 376                 }
 377                 insertInset(pos, minibuffer_inset, minibuffer_font);
 378         } else {
 379                 LyXFont f = minibuffer_font;
 380                 if (!checkInsertChar(f)) {
 381                         return false;
 382                 }
 383                 insertChar(pos, minibuffer_char, f);
 384         }
 385         return true;
 386 }
 387
 388 // end of minibuffer
 389
 390
 391 void Paragraph::erase(pos_type pos)
 392 {
 393         pimpl_->erase(pos);
 394 }
 395
 396
 397 bool Paragraph::checkInsertChar(LyXFont & font)
 398 {
 399         if (pimpl_->inset_owner)
 400                 return pimpl_->inset_owner->checkInsertChar(font);
 401         return true;
 402 }
 403
 404
 405 void Paragraph::insertChar(pos_type pos, Paragraph::value_type c)
 406 {
 407         LyXFont const f(LyXFont::ALL_INHERIT);
 408         insertChar(pos, c, f);
 409 }
 410
 411
 412 void Paragraph::insertChar(pos_type pos, Paragraph::value_type c,
 413                            LyXFont const & font)
 414 {
 415         pimpl_->insertChar(pos, c, font);
 416 }
 417
 418
 419 void Paragraph::insertInset(pos_type pos, Inset * inset)
 420 {
 421         LyXFont const f(LyXFont::ALL_INHERIT);
 422         insertInset(pos, inset, f);
 423 }
 424
 425
 426 void Paragraph::insertInset(pos_type pos, Inset * inset, LyXFont const & font)
 427 {
 428         pimpl_->insertInset(pos, inset, font);
 429 }
 430
 431
 432 bool Paragraph::insetAllowed(Inset::Code code)
 433 {
 434         //lyxerr << "Paragraph::InsertInsetAllowed" << endl;
 435
 436         if (pimpl_->inset_owner)
 437                 return pimpl_->inset_owner->insetAllowed(code);
 438         return true;
 439 }
 440
 441
 442 Inset * Paragraph::getInset(pos_type pos)
 443 {
 444         lyx::Assert(pos < size());
 445
 446         return insetlist.get(pos);
 447 }
 448
 449
 450 Inset const * Paragraph::getInset(pos_type pos) const
 451 {
 452         lyx::Assert(pos < size());
 453
 454         return insetlist.get(pos);
 455 }
 456
 457
 458 // Gets uninstantiated font setting at position.
 459 LyXFont const Paragraph::getFontSettings(BufferParams const & bparams,
 460                                          pos_type pos) const
 461 {
 462         lyx::Assert(pos <= size());
 463
 464         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
 465         Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
 466         for (; cit != end; ++cit) {
 467                 if (cit->pos() >= pos)
 468                         break;
 469         }
 470
 471         LyXFont retfont;
 472         if (cit != end) {
 473                 retfont = cit->font();
 474         } else if (pos == size() && !empty()) {
 475                 retfont = getFontSettings(bparams, pos - 1);
 476         } else
 477                 retfont = LyXFont(LyXFont::ALL_INHERIT, getParLanguage(bparams));
 478 #ifdef INHERIT_LANGUAGE
 479         if (retfont.language() == inherit_language)
 480                 retfont.setLanguage(bparams.language);
 481 #endif
 482
 483         return retfont;
 484 }
 485
 486
 487 // Gets uninstantiated font setting at position 0
 488 LyXFont const Paragraph::getFirstFontSettings() const
 489 {
 490         if (!empty() && !pimpl_->fontlist.empty())
 491                 return pimpl_->fontlist[0].font();
 492
 493         return LyXFont(LyXFont::ALL_INHERIT);
 494 }
 495
 496
 497 // Gets the fully instantiated font at a given position in a paragraph
 498 // This is basically the same function as LyXText::GetFont() in text2.C.
 499 // The difference is that this one is used for generating the LaTeX file,
 500 // and thus cosmetic "improvements" are disallowed: This has to deliver
 501 // the true picture of the buffer. (Asger)
 502 // If position is -1, we get the layout font of the paragraph.
 503 // If position is -2, we get the font of the manual label of the paragraph.
 504 LyXFont const Paragraph::getFont(BufferParams const & bparams,
 505                                  pos_type pos) const
 506 {
 507         lyx::Assert(pos >= 0);
 508
 509         LyXLayout_ptr const & lout = layout();
 510
 511         pos_type main_body = 0;
 512         if (lout->labeltype == LABEL_MANUAL)
 513                 main_body = beginningOfMainBody();
 514
 515         LyXFont layoutfont;
 516         if (pos < main_body)
 517                 layoutfont = lout->labelfont;
 518         else
 519                 layoutfont = lout->font;
 520
 521         LyXFont tmpfont = getFontSettings(bparams, pos);
 522 #ifndef INHERIT_LANGUAGE
 523         tmpfont.realize(layoutfont);
 524 #else
 525         tmpfont.realize(layoutfont, bparams.language);
 526 #endif
 527
 528         return pimpl_->realizeFont(tmpfont, bparams);
 529 }
 530
 531
 532 LyXFont const Paragraph::getLabelFont(BufferParams const & bparams) const
 533 {
 534         LyXLayout_ptr const & lout = layout();
 535
 536         LyXFont tmpfont = lout->labelfont;
 537         tmpfont.setLanguage(getParLanguage(bparams));
 538
 539         return pimpl_->realizeFont(tmpfont, bparams);
 540 }
 541
 542
 543 LyXFont const Paragraph::getLayoutFont(BufferParams const & bparams) const
 544 {
 545         LyXLayout_ptr const & lout = layout();
 546
 547         LyXFont tmpfont = lout->font;
 548         tmpfont.setLanguage(getParLanguage(bparams));
 549
 550         return pimpl_->realizeFont(tmpfont, bparams);
 551 }
 552
 553
 554 /// Returns the height of the highest font in range
 555 LyXFont::FONT_SIZE
 556 Paragraph::highestFontInRange(pos_type startpos, pos_type endpos,
 557                               LyXFont::FONT_SIZE const def_size) const
 558 {
 559         if (pimpl_->fontlist.empty())
 560                 return def_size;
 561
 562         Pimpl::FontList::const_iterator end_it = pimpl_->fontlist.begin();
 563         Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
 564         for (; end_it != end; ++end_it) {
 565                 if (end_it->pos() >= endpos)
 566                         break;
 567         }
 568
 569         if (end_it != end)
 570                 ++end_it;
 571
 572         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
 573         for (; cit != end; ++cit) {
 574                 if (cit->pos() >= startpos)
 575                         break;
 576         }
 577
 578         LyXFont::FONT_SIZE maxsize = LyXFont::SIZE_TINY;
 579         for (; cit != end_it; ++cit) {
 580                 LyXFont::FONT_SIZE size = cit->font().size();
 581                 if (size == LyXFont::INHERIT_SIZE)
 582                         size = def_size;
 583                 if (size > maxsize && size <= LyXFont::SIZE_HUGER)
 584                         maxsize = size;
 585         }
 586         return maxsize;
 587 }
 588
 589
 590 Paragraph::value_type
 591 Paragraph::getUChar(BufferParams const & bparams, pos_type pos) const
 592 {
 593         value_type c = getChar(pos);
 594         if (!lyxrc.rtl_support)
 595                 return c;
 596
 597         value_type uc = c;
 598         switch (c) {
 599         case '(':
 600                 uc = ')';
 601                 break;
 602         case ')':
 603                 uc = '(';
 604                 break;
 605         case '[':
 606                 uc = ']';
 607                 break;
 608         case ']':
 609                 uc = '[';
 610                 break;
 611         case '{':
 612                 uc = '}';
 613                 break;
 614         case '}':
 615                 uc = '{';
 616                 break;
 617         case '<':
 618                 uc = '>';
 619                 break;
 620         case '>':
 621                 uc = '<';
 622                 break;
 623         }
 624         if (uc != c && getFontSettings(bparams, pos).isRightToLeft())
 625                 return uc;
 626         else
 627                 return c;
 628 }
 629
 630
 631 void Paragraph::setFont(pos_type pos, LyXFont const & font)
 632 {
 633         lyx::Assert(pos <= size());
 634
 635         // First, reduce font against layout/label font
 636         // Update: The SetCharFont() routine in text2.C already
 637         // reduces font, so we don't need to do that here. (Asger)
 638         // No need to simplify this because it will disappear
 639         // in a new kernel. (Asger)
 640         // Next search font table
 641
 642         Pimpl::FontList::iterator beg = pimpl_->fontlist.begin();
 643         Pimpl::FontList::iterator it = beg;
 644         Pimpl::FontList::iterator endit = pimpl_->fontlist.end();
 645         for (; it != endit; ++it) {
 646                 if (it->pos() >= pos)
 647                         break;
 648         }
 649         unsigned int i = std::distance(beg, it);
 650         bool notfound = (it == endit);
 651
 652         if (!notfound && pimpl_->fontlist[i].font() == font)
 653                 return;
 654
 655         bool begin = pos == 0 || notfound ||
 656                 (i > 0 && pimpl_->fontlist[i - 1].pos() == pos - 1);
 657         // Is position pos is a beginning of a font block?
 658         bool end = !notfound && pimpl_->fontlist[i].pos() == pos;
 659         // Is position pos is the end of a font block?
 660         if (begin && end) { // A single char block
 661                 if (i + 1 < pimpl_->fontlist.size() &&
 662                     pimpl_->fontlist[i + 1].font() == font) {
 663                         // Merge the singleton block with the next block
 664                         pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i);
 665                         if (i > 0 && pimpl_->fontlist[i - 1].font() == font)
 666                                 pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i - 1);
 667                 } else if (i > 0 && pimpl_->fontlist[i - 1].font() == font) {
 668                         // Merge the singleton block with the previous block
 669                         pimpl_->fontlist[i - 1].pos(pos);
 670                         pimpl_->fontlist.erase(pimpl_->fontlist.begin() + i);
 671                 } else
 672                         pimpl_->fontlist[i].font(font);
 673         } else if (begin) {
 674                 if (i > 0 && pimpl_->fontlist[i - 1].font() == font)
 675                         pimpl_->fontlist[i - 1].pos(pos);
 676                 else
 677                         pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i,
 678                                         Pimpl::FontTable(pos, font));
 679         } else if (end) {
 680                 pimpl_->fontlist[i].pos(pos - 1);
 681                 if (!(i + 1 < pimpl_->fontlist.size() &&
 682                       pimpl_->fontlist[i + 1].font() == font))
 683                         pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i + 1,
 684                                         Pimpl::FontTable(pos, font));
 685         } else { // The general case. The block is splitted into 3 blocks
 686                 pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i,
 687                                 Pimpl::FontTable(pos - 1, pimpl_->fontlist[i].font()));
 688                 pimpl_->fontlist.insert(pimpl_->fontlist.begin() + i + 1,
 689                                 Pimpl::FontTable(pos, font));
 690         }
 691 }
 692
 693
 694 #ifndef NO_NEXT
 695 void Paragraph::next(Paragraph * p)
 696 {
 697         next_ = p;
 698 }
 699
 700
 701 // This function is able to hide closed footnotes.
 702 Paragraph * Paragraph::next()
 703 {
 704         return next_;
 705 }
 706
 707
 708 Paragraph const * Paragraph::next() const
 709 {
 710         return next_;
 711 }
 712
 713
 714 void Paragraph::previous(Paragraph * p)
 715 {
 716         previous_ = p;
 717 }
 718
 719
 720 // This function is able to hide closed footnotes.
 721 Paragraph * Paragraph::previous()
 722 {
 723         return previous_;
 724 }
 725
 726
 727 // This function is able to hide closed footnotes.
 728 Paragraph const * Paragraph::previous() const
 729 {
 730         return previous_;
 731 }
 732 #endif
 733
 734
 735 void Paragraph::makeSameLayout(Paragraph const * par)
 736 {
 737         layout(par->layout());
 738         // move to pimpl?
 739         params() = par->params();
 740 }
 741
 742
 743 int Paragraph::stripLeadingSpaces()
 744 {
 745         if (layout()->free_spacing ||
 746             isFreeSpacing()) {
 747                 return 0;
 748         }
 749
 750         int i = 0;
 751         while (!empty() && (isNewline(0) || isLineSeparator(0))) {
 752                 erase(0);
 753                 ++i;
 754         }
 755
 756         return i;
 757 }
 758
 759
 760 bool Paragraph::hasSameLayout(Paragraph const * par) const
 761 {
 762         return
 763                 par->layout() == layout() &&
 764                 params().sameLayout(par->params());
 765 }
 766
 767
 768 int Paragraph::getEndLabel() const
 769 {
 770         Paragraph const * par = this;
 771         depth_type par_depth = getDepth();
 772         while (par) {
 773                 LyXLayout_ptr const & layout = par->layout();
 774                 int const endlabeltype = layout->endlabeltype;
 775
 776                 if (endlabeltype != END_LABEL_NO_LABEL) {
 777                         if (!next_)
 778                                 return endlabeltype;
 779
 780                         depth_type const next_depth = next_->getDepth();
 781                         if (par_depth > next_depth ||
 782                             (par_depth == next_depth
 783                              && layout != next_->layout()))
 784                                 return endlabeltype;
 785                         break;
 786                 }
 787                 if (par_depth == 0)
 788                         break;
 789                 par = par->outerHook();
 790                 if (par)
 791                         par_depth = par->getDepth();
 792         }
 793         return END_LABEL_NO_LABEL;
 794 }
 795
 796
 797 Paragraph::depth_type Paragraph::getDepth() const
 798 {
 799         return params().depth();
 800 }
 801
 802
 803 Paragraph::depth_type Paragraph::getMaxDepthAfter() const
 804 {
 805         bool const isenv = layout()->isEnvironment();
 806
 807         if (isenv)
 808                 return params().depth() + 1;
 809         else
 810                 return params().depth();
 811
 812 }
 813
 814 char Paragraph::getAlign() const
 815 {
 816         return params().align();
 817 }
 818
 819
 820 string const & Paragraph::getLabelstring() const
 821 {
 822         return params().labelString();
 823 }
 824
 825
 826 // the next two functions are for the manual labels
 827 string const Paragraph::getLabelWidthString() const
 828 {
 829         if (!params().labelWidthString().empty())
 830                 return params().labelWidthString();
 831         else
 832                 return _("Senseless with this layout!");
 833 }
 834
 835
 836 void Paragraph::setLabelWidthString(string const & s)
 837 {
 838         params().labelWidthString(s);
 839 }
 840
 841
 842 void Paragraph::applyLayout(LyXLayout_ptr const & new_layout)
 843 {
 844         layout(new_layout);
 845         params().labelWidthString(string());
 846         params().align(LYX_ALIGN_LAYOUT);
 847         params().spaceTop(VSpace(VSpace::NONE));
 848         params().spaceBottom(VSpace(VSpace::NONE));
 849         params().spacing(Spacing(Spacing::Default));
 850 }
 851
 852
 853 // if the layout of a paragraph contains a manual label, the beginning of the
 854 // main body is the beginning of the second word. This is what the par-
 855 // function returns. If the layout does not contain a label, the main
 856 // body always starts with position 0. This differentiation is necessary,
 857 // because there cannot be a newline or a blank <= the beginning of the
 858 // main body in TeX.
 859
 860 int Paragraph::beginningOfMainBody() const
 861 {
 862         // Unroll the first two cycles of the loop
 863         // and remember the previous character to
 864         // remove unnecessary GetChar() calls
 865         pos_type i = 0;
 866         if (i < size() && getChar(i) != Paragraph::META_NEWLINE) {
 867                 ++i;
 868                 char previous_char = 0;
 869                 char temp = 0;
 870                 if (i < size()
 871                     && (previous_char = getChar(i)) != Paragraph::META_NEWLINE) {
 872                         // Yes, this  ^ is supposed to be "= " not "=="
 873                         ++i;
 874                         while (i < size()
 875                                && previous_char != ' '
 876                                && (temp = getChar(i)) != Paragraph::META_NEWLINE) {
 877                                 ++i;
 878                                 previous_char = temp;
 879                         }
 880                 }
 881         }
 882
 883         return i;
 884 }
 885
 886
 887 Paragraph * Paragraph::depthHook(depth_type depth)
 888 {
 889         Paragraph * newpar = this;
 890
 891         do {
 892                 newpar = newpar->previous();
 893         } while (newpar && newpar->getDepth() > depth);
 894
 895         if (!newpar) {
 896                 if (previous() || getDepth())
 897                         lyxerr << "ERROR (Paragraph::DepthHook): "
 898                                 "no hook." << endl;
 899                 newpar = this;
 900         }
 901
 902         return newpar;
 903 }
 904
 905
 906 Paragraph const * Paragraph::depthHook(depth_type depth) const
 907 {
 908         Paragraph const * newpar = this;
 909
 910         do {
 911                 newpar = newpar->previous();
 912         } while (newpar && newpar->getDepth() > depth);
 913
 914         if (!newpar) {
 915                 if (previous() || getDepth())
 916                         lyxerr << "ERROR (Paragraph::DepthHook): "
 917                                 "no hook." << endl;
 918                 newpar = this;
 919         }
 920
 921         return newpar;
 922 }
 923
 924
 925 Paragraph * Paragraph::outerHook()
 926 {
 927         if (!getDepth())
 928                 return 0;
 929         return depthHook(depth_type(getDepth() - 1));
 930 }
 931
 932
 933 Paragraph const * Paragraph::outerHook() const
 934 {
 935         if (!getDepth())
 936                 return 0;
 937         return depthHook(depth_type(getDepth() - 1));
 938 }
 939
 940
 941 // returns -1 if inset not found
 942 int Paragraph::getPositionOfInset(Inset const * inset) const
 943 {
 944         // Find the entry.
 945         InsetList::iterator it = insetlist.begin();
 946         InsetList::iterator end = insetlist.end();
 947         for (; it != end; ++it) {
 948                 if (it.getInset() == inset) {
 949                         return it.getPos();
 950                 }
 951         }
 952         if (inset == bibkey)
 953                 return 0;
 954
 955         return -1;
 956 }
 957
 958
 959 Paragraph * Paragraph::TeXOnePar(Buffer const * buf,
 960                                  BufferParams const & bparams,
 961                                  ostream & os, TexRow & texrow,
 962                                  bool moving_arg)
 963 {
 964         lyxerr[Debug::LATEX] << "TeXOnePar...     " << this << endl;
 965         Inset const * in = inInset();
 966         bool further_blank_line = false;
 967         LyXLayout_ptr style;
 968
 969         // well we have to check if we are in an inset with unlimited
 970         // lenght (all in one row) if that is true then we don't allow
 971         // any special options in the paragraph and also we don't allow
 972         // any environment other then "Standard" to be valid!
 973         if ((in == 0) || !in->forceDefaultParagraphs(in)) {
 974                 style = layout();
 975
 976                 if (params().startOfAppendix()) {
 977                         os << "\\appendix\n";
 978                         texrow.newline();
 979                 }
 980
 981                 if (!params().spacing().isDefault()
 982                         && (!previous() || !previous()->hasSameLayout(this))) {
 983                         os << params().spacing().writeEnvirBegin() << "\n";
 984                         texrow.newline();
 985                 }
 986
 987                 if (style->isCommand()) {
 988                         os << '\n';
 989                         texrow.newline();
 990                 }
 991
 992                 if (params().pagebreakTop()) {
 993                         os << "\\newpage";
 994                         further_blank_line = true;
 995                 }
 996                 if (params().spaceTop().kind() != VSpace::NONE) {
 997                         os << params().spaceTop().asLatexCommand(bparams);
 998                         further_blank_line = true;
 999                 }
1000
1001                 if (params().lineTop()) {
1002                         os << "\\lyxline{\\" << getFont(bparams, 0).latexSize() << '}'
1003                            << "\\vspace{-1\\parskip}";
1004                         further_blank_line = true;
1005                 }
1006
1007                 if (further_blank_line) {
1008                         os << '\n';
1009                         texrow.newline();
1010                 }
1011         } else {
1012                 style = bparams.getLyXTextClass().defaultLayout();
1013         }
1014
1015         Language const * language = getParLanguage(bparams);
1016         Language const * doc_language = bparams.language;
1017         Language const * previous_language = previous()
1018                 ? previous()->getParLanguage(bparams) : doc_language;
1019
1020         if (language->babel() != previous_language->babel()
1021             // check if we already put language command in TeXEnvironment()
1022             && !(style->isEnvironment()
1023                  && (!previous() || previous()->layout() != layout() ||
1024                          previous()->params().depth() != params().depth())))
1025         {
1026                 if (!lyxrc.language_command_end.empty() &&
1027                     previous_language->babel() != doc_language->babel())
1028                 {
1029                         os << subst(lyxrc.language_command_end, "$$lang",
1030                                     previous_language->babel())
1031                            << endl;
1032                         texrow.newline();
1033                 }
1034
1035                 if (lyxrc.language_command_end.empty() ||
1036                     language->babel() != doc_language->babel())
1037                 {
1038                         os << subst(lyxrc.language_command_begin, "$$lang",
1039                                     language->babel())
1040                            << endl;
1041                         texrow.newline();
1042                 }
1043         }
1044
1045         if (bparams.inputenc == "auto" &&
1046             language->encoding() != previous_language->encoding()) {
1047                 os << "\\inputencoding{"
1048                    << language->encoding()->LatexName()
1049                    << "}" << endl;
1050                 texrow.newline();
1051         }
1052
1053         switch (style->latextype) {
1054         case LATEX_COMMAND:
1055                 os << '\\'
1056                    << style->latexname()
1057                    << style->latexparam();
1058                 break;
1059         case LATEX_ITEM_ENVIRONMENT:
1060                 if (bibkey) {
1061                         bibkey->latex(buf, os, false, false);
1062                 } else
1063                         os << "\\item ";
1064                 break;
1065         case LATEX_LIST_ENVIRONMENT:
1066                 os << "\\item ";
1067                 break;
1068         default:
1069                 break;
1070         }
1071
1072         bool need_par = simpleTeXOnePar(buf, bparams, os, texrow, moving_arg);
1073
1074         // Make sure that \\par is done with the font of the last
1075         // character if this has another size as the default.
1076         // This is necessary because LaTeX (and LyX on the screen)
1077         // calculates the space between the baselines according
1078         // to this font. (Matthias)
1079         //
1080         // Is this really needed ? (Dekel)
1081         // We do not need to use to change the font for the last paragraph
1082         // or for a command.
1083         LyXFont const font =
1084                 (empty()
1085                  ? getLayoutFont(bparams) : getFont(bparams, size() - 1));
1086
1087         bool is_command = style->isCommand();
1088
1089         if (style->resfont.size() != font.size() && next_ && !is_command) {
1090                 if (!need_par)
1091                         os << "{";
1092                 os << "\\" << font.latexSize() << " \\par}";
1093         } else if (need_par) {
1094                 os << "\\par}";
1095         } else if (is_command)
1096                 os << "}";
1097
1098         switch (style->latextype) {
1099         case LATEX_ITEM_ENVIRONMENT:
1100         case LATEX_LIST_ENVIRONMENT:
1101                 if (next_ && (params().depth() < next_->params().depth())) {
1102                         os << '\n';
1103                         texrow.newline();
1104                 }
1105                 break;
1106         case LATEX_ENVIRONMENT:
1107                 // if its the last paragraph of the current environment
1108                 // skip it otherwise fall through
1109                 if (next_
1110                     && (next_->layout() != layout()
1111                         || next_->params().depth() != params().depth()))
1112                         break;
1113                 // fall through possible
1114         default:
1115                 // we don't need it for the last paragraph!!!
1116                 if (next_) {
1117                         os << '\n';
1118                         texrow.newline();
1119                 }
1120         }
1121
1122         if ((in == 0) || !in->forceDefaultParagraphs(in)) {
1123                 further_blank_line = false;
1124                 if (params().lineBottom()) {
1125                         os << "\\lyxline{\\" << font.latexSize() << '}';
1126                         further_blank_line = true;
1127                 }
1128
1129                 if (params().spaceBottom().kind() != VSpace::NONE) {
1130                         os << params().spaceBottom().asLatexCommand(bparams);
1131                         further_blank_line = true;
1132                 }
1133
1134                 if (params().pagebreakBottom()) {
1135                         os << "\\newpage";
1136                         further_blank_line = true;
1137                 }
1138
1139                 if (further_blank_line) {
1140                         os << '\n';
1141                         texrow.newline();
1142                 }
1143
1144                 if (!params().spacing().isDefault()
1145                         && (!next_ || !next_->hasSameLayout(this))) {
1146                         os << params().spacing().writeEnvirEnd() << "\n";
1147                         texrow.newline();
1148                 }
1149         }
1150
1151         // we don't need it for the last paragraph!!!
1152         if (next_) {
1153                 os << '\n';
1154                 texrow.newline();
1155         } else {
1156                 // Since \selectlanguage write the language to the aux file,
1157                 // we need to reset the language at the end of footnote or
1158                 // float.
1159
1160                 if (language->babel() != doc_language->babel()) {
1161                         if (lyxrc.language_command_end.empty())
1162                                 os << subst(lyxrc.language_command_begin,
1163                                             "$$lang",
1164                                             doc_language->babel())
1165                                    << endl;
1166                         else
1167                                 os << subst(lyxrc.language_command_end,
1168                                             "$$lang",
1169                                             language->babel())
1170                                    << endl;
1171                         texrow.newline();
1172                 }
1173         }
1174
1175         lyxerr[Debug::LATEX] << "TeXOnePar...done " << next_ << endl;
1176         return next_;
1177 }
1178
1179
1180 // This could go to ParagraphParameters if we want to
1181 int Paragraph::startTeXParParams(BufferParams const & bparams,
1182                                  ostream & os, bool moving_arg) const
1183 {
1184         int column = 0;
1185
1186         if (params().noindent()) {
1187                 os << "\\noindent ";
1188                 column += 10;
1189         }
1190
1191         switch (params().align()) {
1192         case LYX_ALIGN_NONE:
1193         case LYX_ALIGN_BLOCK:
1194         case LYX_ALIGN_LAYOUT:
1195         case LYX_ALIGN_SPECIAL:
1196                 break;
1197         case LYX_ALIGN_LEFT:
1198         case LYX_ALIGN_RIGHT:
1199         case LYX_ALIGN_CENTER:
1200                 if (moving_arg) {
1201                         os << "\\protect";
1202                         column = 8;
1203                 }
1204                 break;
1205         }
1206
1207         switch (params().align()) {
1208         case LYX_ALIGN_NONE:
1209         case LYX_ALIGN_BLOCK:
1210         case LYX_ALIGN_LAYOUT:
1211         case LYX_ALIGN_SPECIAL:
1212                 break;
1213         case LYX_ALIGN_LEFT:
1214                 if (getParLanguage(bparams)->babel() != "hebrew") {
1215                         os << "\\begin{flushleft}";
1216                         column += 17;
1217                 } else {
1218                         os << "\\begin{flushright}";
1219                         column += 18;
1220                 }
1221                 break;
1222         case LYX_ALIGN_RIGHT:
1223                 if (getParLanguage(bparams)->babel() != "hebrew") {
1224                         os << "\\begin{flushright}";
1225                         column += 18;
1226                 } else {
1227                         os << "\\begin{flushleft}";
1228                         column += 17;
1229                 }
1230                 break;
1231         case LYX_ALIGN_CENTER:
1232                 os << "\\begin{center}";
1233                 column += 14;
1234                 break;
1235         }
1236
1237         return column;
1238 }
1239
1240
1241 // This could go to ParagraphParameters if we want to
1242 int Paragraph::endTeXParParams(BufferParams const & bparams,
1243                                ostream & os, bool moving_arg) const
1244 {
1245         int column = 0;
1246
1247         switch (params().align()) {
1248         case LYX_ALIGN_NONE:
1249         case LYX_ALIGN_BLOCK:
1250         case LYX_ALIGN_LAYOUT:
1251         case LYX_ALIGN_SPECIAL:
1252                 break;
1253         case LYX_ALIGN_LEFT:
1254         case LYX_ALIGN_RIGHT:
1255         case LYX_ALIGN_CENTER:
1256                 if (moving_arg) {
1257                         os << "\\protect";
1258                         column = 8;
1259                 }
1260                 break;
1261         }
1262
1263         switch (params().align()) {
1264         case LYX_ALIGN_NONE:
1265         case LYX_ALIGN_BLOCK:
1266         case LYX_ALIGN_LAYOUT:
1267         case LYX_ALIGN_SPECIAL:
1268                 break;
1269         case LYX_ALIGN_LEFT:
1270                 if (getParLanguage(bparams)->babel() != "hebrew") {
1271                         os << "\\end{flushleft}";
1272                         column = 15;
1273                 } else {
1274                         os << "\\end{flushright}";
1275                         column = 16;
1276                 }
1277                 break;
1278         case LYX_ALIGN_RIGHT:
1279                 if (getParLanguage(bparams)->babel() != "hebrew") {
1280                         os << "\\end{flushright}";
1281                         column+= 16;
1282                 } else {
1283                         os << "\\end{flushleft}";
1284                         column = 15;
1285                 }
1286                 break;
1287         case LYX_ALIGN_CENTER:
1288                 os << "\\end{center}";
1289                 column = 12;
1290                 break;
1291         }
1292         return column;
1293 }
1294
1295
1296 // This one spits out the text of the paragraph
1297 bool Paragraph::simpleTeXOnePar(Buffer const * buf,
1298                                 BufferParams const & bparams,
1299                                 ostream & os, TexRow & texrow,
1300                                 bool moving_arg)
1301 {
1302         lyxerr[Debug::LATEX] << "SimpleTeXOnePar...     " << this << endl;
1303
1304         bool return_value = false;
1305
1306         LyXLayout_ptr style;
1307
1308         // well we have to check if we are in an inset with unlimited
1309         // lenght (all in one row) if that is true then we don't allow
1310         // any special options in the paragraph and also we don't allow
1311         // any environment other then "Standard" to be valid!
1312         bool asdefault =
1313                 (inInset() && inInset()->forceDefaultParagraphs(inInset()));
1314
1315         if (asdefault) {
1316                 style = bparams.getLyXTextClass().defaultLayout();
1317         } else {
1318                 style = layout();
1319         }
1320
1321         LyXFont basefont;
1322
1323         // Maybe we have to create a optional argument.
1324         pos_type main_body;
1325         if (style->labeltype != LABEL_MANUAL)
1326                 main_body = 0;
1327         else
1328                 main_body = beginningOfMainBody();
1329
1330         int column = 0;
1331
1332         if (main_body > 0) {
1333                 os << '[';
1334                 ++column;
1335                 basefont = getLabelFont(bparams);
1336         } else {
1337                 basefont = getLayoutFont(bparams);
1338         }
1339
1340         moving_arg |= style->needprotect;
1341
1342         // Which font is currently active?
1343         LyXFont running_font(basefont);
1344         // Do we have an open font change?
1345         bool open_font = false;
1346
1347         texrow.start(this, 0);
1348
1349         // if the paragraph is empty, the loop will not be entered at all
1350         if (empty()) {
1351                 if (style->isCommand()) {
1352                         os << '{';
1353                         ++column;
1354                 }
1355                 if (!asdefault)
1356                         column += startTeXParParams(bparams, os, moving_arg);
1357
1358         }
1359
1360         for (pos_type i = 0; i < size(); ++i) {
1361                 ++column;
1362                 // First char in paragraph or after label?
1363                 if (i == main_body) {
1364                         if (main_body > 0) {
1365                                 if (open_font) {
1366                                         column += running_font.latexWriteEndChanges(os, basefont, basefont);
1367                                         open_font = false;
1368                                 }
1369                                 basefont = getLayoutFont(bparams);
1370                                 running_font = basefont;
1371                                 os << ']';
1372                                 ++column;
1373                         }
1374                         if (style->isCommand()) {
1375                                 os << '{';
1376                                 ++column;
1377                         }
1378
1379                         if (!asdefault)
1380                                 column += startTeXParParams(bparams, os,
1381                                                             moving_arg);
1382                 }
1383
1384                 value_type c = getChar(i);
1385
1386                 // Fully instantiated font
1387                 LyXFont font = getFont(bparams, i);
1388
1389                 LyXFont const last_font = running_font;
1390
1391                 // Spaces at end of font change are simulated to be
1392                 // outside font change, i.e. we write "\textXX{text} "
1393                 // rather than "\textXX{text }". (Asger)
1394                 if (open_font && c == ' ' && i <= size() - 2) {
1395                         LyXFont const & next_font = getFont(bparams, i + 1);
1396                         if (next_font != running_font
1397                             && next_font != font) {
1398                                 font = next_font;
1399                         }
1400                 }
1401
1402                 // We end font definition before blanks
1403                 if (open_font &&
1404                     (font != running_font ||
1405                      font.language() != running_font.language()))
1406                 {
1407                         column += running_font.latexWriteEndChanges(os,
1408                                                                     basefont,
1409                                                                     (i == main_body-1) ? basefont : font);
1410                         running_font = basefont;
1411                         open_font = false;
1412                 }
1413
1414                 // Blanks are printed before start of fontswitch
1415                 if (c == ' ') {
1416                         // Do not print the separation of the optional argument
1417                         if (i != main_body - 1) {
1418                                 pimpl_->simpleTeXBlanks(os, texrow, i,
1419                                                        column, font, *style);
1420                         }
1421                 }
1422
1423                 // Do we need to change font?
1424                 if ((font != running_font ||
1425                      font.language() != running_font.language()) &&
1426                         i != main_body - 1)
1427                 {
1428                         column += font.latexWriteStartChanges(os, basefont,
1429                                                               last_font);
1430                         running_font = font;
1431                         open_font = true;
1432                 }
1433
1434                 if (c == Paragraph::META_NEWLINE) {
1435                         // newlines are handled differently here than
1436                         // the default in SimpleTeXSpecialChars().
1437                         if (!style->newline_allowed) {
1438                                 os << '\n';
1439                         } else {
1440                                 if (open_font) {
1441                                         column += running_font.latexWriteEndChanges(os, basefont, basefont);
1442                                         open_font = false;
1443                                 }
1444                                 basefont = getLayoutFont(bparams);
1445                                 running_font = basefont;
1446                                 if (font.family() ==
1447                                     LyXFont::TYPEWRITER_FAMILY) {
1448                                         os << "~";
1449                                 }
1450                                 if (moving_arg)
1451                                         os << "\\protect ";
1452
1453                                 os << "\\\\\n";
1454                         }
1455                         texrow.newline();
1456                         texrow.start(this, i + 1);
1457                         column = 0;
1458                 } else {
1459                         pimpl_->simpleTeXSpecialChars(buf, bparams,
1460                                                       os, texrow, moving_arg,
1461                                                       font, running_font,
1462                                                       basefont, open_font,
1463                                                       *style, i, column, c);
1464                 }
1465         }
1466
1467         // If we have an open font definition, we have to close it
1468         if (open_font) {
1469 #ifdef FIXED_LANGUAGE_END_DETECTION
1470                 if (next_) {
1471                         running_font
1472                                 .latexWriteEndChanges(os, basefont,
1473                                                       next_->getFont(bparams,
1474                                                       0));
1475                 } else {
1476                         running_font.latexWriteEndChanges(os, basefont,
1477                                                           basefont);
1478                 }
1479 #else
1480 #ifdef WITH_WARNINGS
1481 //#warning For now we ALWAYS have to close the foreign font settings if they are
1482 //#warning there as we start another \selectlanguage with the next paragraph if
1483 //#warning we are in need of this. This should be fixed sometime (Jug)
1484 #endif
1485                 running_font.latexWriteEndChanges(os, basefont,  basefont);
1486 #endif
1487         }
1488
1489         // Needed if there is an optional argument but no contents.
1490         if (main_body > 0 && main_body == size()) {
1491                 os << "]~";
1492                 return_value = false;
1493         }
1494
1495         if (!asdefault) {
1496                 column += endTeXParParams(bparams, os, moving_arg);
1497         }
1498
1499         lyxerr[Debug::LATEX] << "SimpleTeXOnePar...done " << this << endl;
1500         return return_value;
1501 }
1502
1503
1504 Paragraph * Paragraph::TeXEnvironment(Buffer const * buf,
1505                                             BufferParams const & bparams,
1506                                             ostream & os, TexRow & texrow)
1507 {
1508         lyxerr[Debug::LATEX] << "TeXEnvironment...     " << this << endl;
1509
1510         LyXLayout_ptr const & style = layout();
1511
1512         Language const * language = getParLanguage(bparams);
1513         Language const * doc_language = bparams.language;
1514         Language const * previous_language = previous_
1515                 ? previous_->getParLanguage(bparams) : doc_language;
1516         if (language->babel() != previous_language->babel()) {
1517
1518                 if (!lyxrc.language_command_end.empty() &&
1519                     previous_language->babel() != doc_language->babel()) {
1520                         os << subst(lyxrc.language_command_end, "$$lang",
1521                                     previous_language->babel())
1522                            << endl;
1523                         texrow.newline();
1524                 }
1525
1526                 if (lyxrc.language_command_end.empty() ||
1527                     language->babel() != doc_language->babel()) {
1528                         os << subst(lyxrc.language_command_begin, "$$lang",
1529                                     language->babel())
1530                            << endl;
1531                         texrow.newline();
1532                 }
1533         }
1534
1535         bool leftindent_open = false;
1536         if (!params().leftIndent().zero()) {
1537                 os << "\\begin{LyXParagraphLeftIndent}{" <<
1538                         params().leftIndent().asLatexString() << "}\n";
1539                 texrow.newline();
1540                 leftindent_open = true;
1541         }
1542
1543         if (style->isEnvironment()) {
1544                 if (style->latextype == LATEX_LIST_ENVIRONMENT) {
1545                         os << "\\begin{" << style->latexname() << "}{"
1546                            << params().labelWidthString() << "}\n";
1547                 } else if (style->labeltype == LABEL_BIBLIO) {
1548                         // ale970405
1549                         os << "\\begin{" << style->latexname() << "}{"
1550                            <<  bibitemWidest(buf)
1551                            << "}\n";
1552                 } else if (style->latextype == LATEX_ITEM_ENVIRONMENT) {
1553                         os << "\\begin{" << style->latexname() << '}'
1554                            << style->latexparam() << '\n';
1555                 } else
1556                         os << "\\begin{" << style->latexname() << '}'
1557                            << style->latexparam() << '\n';
1558                 texrow.newline();
1559         }
1560         Paragraph * par = this;
1561         do {
1562                 par = par->TeXOnePar(buf, bparams, os, texrow, false);
1563
1564                 if (par && par->params().depth() > params().depth()) {
1565                             if (par->layout()->isParagraph()) {
1566
1567                             // Thinko!
1568                             // How to handle this? (Lgb)
1569                             //&& !suffixIs(os, "\n\n")
1570                                     //) {
1571                                 // There should be at least one '\n' already
1572                                 // but we need there to be two for Standard
1573                                 // paragraphs that are depth-increment'ed to be
1574                                 // output correctly.  However, tables can
1575                                 // also be paragraphs so don't adjust them.
1576                                 // ARRae
1577                                 // Thinkee:
1578                                 // Will it ever harm to have one '\n' too
1579                                 // many? i.e. that we sometimes will have
1580                                 // three in a row. (Lgb)
1581                                 os << '\n';
1582                                 texrow.newline();
1583                         }
1584                         par = par->pimpl_->TeXDeeper(buf, bparams, os, texrow);
1585                 }
1586         } while (par
1587                  && par->layout() == layout()
1588                  && par->params().depth() == params().depth()
1589                  && par->params().leftIndent() == params().leftIndent());
1590
1591         if (style->isEnvironment()) {
1592                 os << "\\end{" << style->latexname() << "}\n";
1593                 texrow.newline();
1594         }
1595
1596         if (leftindent_open) {
1597                 os << "\\end{LyXParagraphLeftIndent}\n";
1598                 texrow.newline();
1599         }
1600
1601         lyxerr[Debug::LATEX] << "TeXEnvironment...done " << par << endl;
1602         return par;  // ale970302
1603 }
1604
1605
1606 bool Paragraph::isHfill(pos_type pos) const
1607 {
1608         return IsHfillChar(getChar(pos));
1609 }
1610
1611
1612 bool Paragraph::isInset(pos_type pos) const
1613 {
1614         return IsInsetChar(getChar(pos));
1615 }
1616
1617
1618 bool Paragraph::isNewline(pos_type pos) const
1619 {
1620         return pos >= 0 && IsNewlineChar(getChar(pos));
1621 }
1622
1623
1624 bool Paragraph::isSeparator(pos_type pos) const
1625 {
1626         return IsSeparatorChar(getChar(pos));
1627 }
1628
1629
1630 bool Paragraph::isLineSeparator(pos_type pos) const
1631 {
1632         value_type const c = getChar(pos);
1633         return IsLineSeparatorChar(c)
1634                 || (IsInsetChar(c) && getInset(pos) &&
1635                 getInset(pos)->isLineSeparator());
1636 }
1637
1638
1639 bool Paragraph::isKomma(pos_type pos) const
1640 {
1641         return IsKommaChar(getChar(pos));
1642 }
1643
1644
1645 /// Used by the spellchecker
1646 bool Paragraph::isLetter(pos_type pos) const
1647 {
1648         value_type const c = getChar(pos);
1649         if (IsLetterChar(c))
1650                 return true;
1651         if (isInset(pos))
1652                 return getInset(pos)->isLetter();
1653         // We want to pass the ' and escape chars to ispell
1654         string const extra = lyxrc.isp_esc_chars + '\'';
1655         return contains(extra, c);
1656 }
1657
1658
1659 bool Paragraph::isWord(pos_type pos) const
1660 {
1661         return IsWordChar(getChar(pos)) ;
1662 }
1663
1664
1665 Language const *
1666 Paragraph::getParLanguage(BufferParams const & bparams) const
1667 {
1668         if (!empty()) {
1669 #ifndef INHERIT_LANGUAGE
1670                 return getFirstFontSettings().language();
1671 #else
1672                 Language const * lang = getFirstFontSettings().language();
1673 #ifdef WITH_WARNINGS
1674 #warning We should make this somewhat better, any ideas? (Jug)
1675 #endif
1676                 if (lang == inherit_language || lang == ignore_language)
1677                         lang = bparams.language;
1678                 return lang;
1679 #endif
1680         } else if (previous_)
1681                 return previous_->getParLanguage(bparams);
1682         else
1683                 return bparams.language;
1684 }
1685
1686
1687 bool Paragraph::isRightToLeftPar(BufferParams const & bparams) const
1688 {
1689         return lyxrc.rtl_support
1690                 && getParLanguage(bparams)->RightToLeft()
1691                 && !(inInset() && inInset()->owner() &&
1692                      inInset()->owner()->lyxCode() == Inset::ERT_CODE);
1693 }
1694
1695
1696 void Paragraph::changeLanguage(BufferParams const & bparams,
1697                                   Language const * from, Language const * to)
1698 {
1699         for (pos_type i = 0; i < size(); ++i) {
1700                 LyXFont font = getFontSettings(bparams, i);
1701                 if (font.language() == from) {
1702                         font.setLanguage(to);
1703                         setFont(i, font);
1704                 }
1705         }
1706 }
1707
1708
1709 bool Paragraph::isMultiLingual(BufferParams const & bparams)
1710 {
1711         Language const * doc_language = bparams.language;
1712         Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
1713         Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
1714
1715         for (; cit != end; ++cit)
1716                 if (cit->font().language() != ignore_language &&
1717                     cit->font().language() != latex_language &&
1718 #ifdef INHERIT_LANGUAGE
1719                         cit->font().language() != inherit_language &&
1720 #endif
1721                         cit->font().language() != doc_language)
1722                         return true;
1723         return false;
1724 }
1725
1726
1727 // Convert the paragraph to a string.
1728 // Used for building the table of contents
1729 string const Paragraph::asString(Buffer const * buffer, bool label)
1730 {
1731         BufferParams const & bparams = buffer->params;
1732         string s;
1733         if (label && !params().labelString().empty())
1734                 s += params().labelString() + ' ';
1735         string::size_type const len = s.size();
1736
1737         for (pos_type i = 0; i < size(); ++i) {
1738                 value_type c = getChar(i);
1739                 if (IsPrintable(c))
1740                         s += c;
1741                 else if (c == META_INSET &&
1742                          getInset(i)->lyxCode() == Inset::MATH_CODE) {
1743                         ostringstream ost;
1744                         getInset(i)->ascii(buffer, ost);
1745                         s += subst(ost.str().c_str(),'\n',' ');
1746                 }
1747         }
1748
1749         if (isRightToLeftPar(bparams))
1750                 reverse(s.begin() + len,s.end());
1751
1752         return s;
1753 }
1754
1755
1756 string const Paragraph::asString(Buffer const * buffer,
1757                                  pos_type beg, pos_type end, bool label)
1758 {
1759         ostringstream ost;
1760
1761         if (beg == 0 && label && !params().labelString().empty())
1762                 ost << params().labelString() << ' ';
1763
1764         for (pos_type i = beg; i < end; ++i) {
1765                 value_type const c = getUChar(buffer->params, i);
1766                 if (IsPrintable(c))
1767                         ost << c;
1768                 else if (c == META_NEWLINE)
1769                         ost << '\n';
1770                 else if (c == META_HFILL)
1771                         ost << '\t';
1772                 else if (c == META_INSET) {
1773                         getInset(i)->ascii(buffer, ost);
1774                 }
1775         }
1776
1777         return ost.str().c_str();
1778 }
1779
1780
1781 void Paragraph::setInsetOwner(Inset * i)
1782 {
1783         pimpl_->inset_owner = i;
1784         InsetList::iterator it = insetlist.begin();
1785         InsetList::iterator end = insetlist.end();
1786         for (; it != end; ++it) {
1787                 if (it.getInset())
1788                         it.getInset()->setOwner(i);
1789         }
1790 }
1791
1792
1793 void Paragraph::deleteInsetsLyXText(BufferView * bv)
1794 {
1795         // then the insets
1796         insetlist.deleteInsetsLyXText(bv);
1797 }
1798
1799
1800 void Paragraph::resizeInsetsLyXText(BufferView * bv)
1801 {
1802         // then the insets
1803         insetlist.resizeInsetsLyXText(bv);
1804 }
1805
1806
1807 void Paragraph::setContentsFromPar(Paragraph * par)
1808 {
1809         pimpl_->setContentsFromPar(par);
1810 }
1811
1812
1813 lyx::pos_type Paragraph::size() const
1814 {
1815         return pimpl_->size();
1816 }
1817
1818
1819 bool Paragraph::empty() const
1820 {
1821         return pimpl_->empty();
1822 }
1823
1824
1825 Paragraph::value_type Paragraph::getChar(pos_type pos) const
1826 {
1827         return pimpl_->getChar(pos);
1828 }
1829
1830
1831 int Paragraph::id() const
1832 {
1833         return pimpl_->id_;
1834 }
1835
1836
1837 LyXLayout_ptr const & Paragraph::layout() const
1838 {
1839         return layout_;
1840 }
1841
1842
1843 void Paragraph::layout(LyXLayout_ptr const & new_layout)
1844 {
1845         layout_ = new_layout;
1846 }
1847
1848
1849 bool Paragraph::isFirstInSequence() const
1850 {
1851         Paragraph const * dhook = depthHook(getDepth());
1852         return (dhook == this
1853                 || dhook->layout() != layout()
1854                 || dhook->getDepth() != getDepth());
1855 }
1856
1857
1858 Inset * Paragraph::inInset() const
1859 {
1860         return pimpl_->inset_owner;
1861 }
1862
1863
1864 void Paragraph::clearContents()
1865 {
1866         pimpl_->clear();
1867 }
1868
1869 void Paragraph::setChar(pos_type pos, value_type c)
1870 {
1871         pimpl_->setChar(pos, c);
1872 }
1873
1874
1875 ParagraphParameters & Paragraph::params()
1876 {
1877         return pimpl_->params;
1878 }
1879
1880
1881 ParagraphParameters const & Paragraph::params() const
1882 {
1883         return pimpl_->params;
1884 }
1885
1886
1887 Paragraph * Paragraph::getParFromID(int id) const
1888 {
1889         return pimpl_->getParFromID(id);
1890 }
1891
1892
1893 bool Paragraph::isFreeSpacing() const
1894 {
1895         // for now we just need this, later should we need this in some
1896         // other way we can always add a function to Inset::() too.
1897         if (pimpl_->inset_owner && pimpl_->inset_owner->owner())
1898                 return (pimpl_->inset_owner->owner()->lyxCode() == Inset::ERT_CODE);
1899         return false;
1900 }