src/text.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2000 The LyX Team.
   8  *
   9  * ====================================================== */
  10
  11 #include <config.h>
  12 #include <cstdlib>
  13 #include <cctype>
  14 #include <algorithm>
  15
  16 //#ifdef __GNUG__
  17 //#pragma implementation "table.h"
  18 //#endif
  19
  20 #include "layout.h"
  21 #include "lyxparagraph.h"
  22 #include "lyxtext.h"
  23 #include "support/textutils.h"
  24 #include "insets/insetbib.h"
  25 #include "insets/insettext.h"
  26 #include "lyx_gui_misc.h"
  27 #include "gettext.h"
  28 #include "bufferparams.h"
  29 #include "buffer.h"
  30 #include "minibuffer.h"
  31 #include "debug.h"
  32 #include "lyxrc.h"
  33 #include "LyXView.h"
  34 #include "lyxrow.h"
  35 #include "Painter.h"
  36 #include "tracer.h"
  37 #include "font.h"
  38 #include "encoding.h"
  39 #include "lyxscreen.h"
  40
  41 using std::max;
  42 using std::min;
  43 using std::endl;
  44 using std::pair;
  45
  46 static const int LYX_PAPER_MARGIN = 20;
  47 extern int bibitemMaxWidth(BufferView *, LyXFont const &);
  48
  49
  50 int LyXText::workWidth(BufferView * bview) const
  51 {
  52         if (inset_owner) {
  53                 return inset_owner->textWidth(bview->painter());
  54         }
  55         return bview->workWidth();
  56 }
  57
  58
  59 unsigned char LyXText::TransformChar(unsigned char c, LyXParagraph * par,
  60                         LyXParagraph::size_type pos) const
  61 {
  62         if (!Encoding::is_arabic(c))
  63                 if (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 && isdigit(c))
  64                         return c + (0xb0 - '0');
  65                 else
  66                         return c;
  67
  68         unsigned char prev_char = pos > 0 ? par->GetChar(pos-1) : ' ';
  69         unsigned char next_char = ' ';
  70         for (LyXParagraph::size_type i = pos+1; i < par->Last(); ++i)
  71                 if (!Encoding::IsComposeChar_arabic(par->GetChar(i))) {
  72                         next_char = par->GetChar(i);
  73                         break;
  74                 }
  75
  76         if (Encoding::is_arabic(next_char))
  77                 if (Encoding::is_arabic(prev_char))
  78                         return Encoding::TransformChar(c, Encoding::FORM_MEDIAL);
  79                 else
  80                         return Encoding::TransformChar(c, Encoding::FORM_INITIAL);
  81         else
  82                 if (Encoding::is_arabic(prev_char))
  83                         return Encoding::TransformChar(c, Encoding::FORM_FINAL);
  84                 else
  85                         return Encoding::TransformChar(c, Encoding::FORM_ISOLATED);
  86 }
  87
  88 // This is the comments that some of the warnings below refers to.
  89 // There are some issues in this file and I don't think they are
  90 // really related to the FIX_DOUBLE_SPACE patch. I'd rather think that
  91 // this is a problem that has been here almost from day one and that a
  92 // larger userbase with differenct access patters triggers the bad
  93 // behaviour. (segfaults.) What I think happen is: In several places
  94 // we store the paragraph in the current cursor and then moves the
  95 // cursor. This movement of the cursor will delete paragraph at the
  96 // old position if it is now empty. This will make the temporary
  97 // pointer to the old cursor paragraph invalid and dangerous to use.
  98 // And is some cases this will trigger a segfault. I have marked some
  99 // of the cases where this happens with a warning, but I am sure there
 100 // are others in this file and in text2.C. There is also a note in
 101 // Delete() that you should read. In Delete I store the paragraph->id
 102 // instead of a pointer to the paragraph. I am pretty sure this faulty
 103 // use of temporary pointers to paragraphs that might have gotten
 104 // invalidated (through a cursor movement) before they are used, are
 105 // the cause of the strange crashes we get reported often.
 106 //
 107 // It is very tiresom to change this code, especially when it is as
 108 // hard to read as it is. Help to fix all the cases where this is done
 109 // would be greately appreciated.
 110 //
 111 // Lgb
 112
 113 int LyXText::SingleWidth(BufferView * bview, LyXParagraph * par,
 114                          LyXParagraph::size_type pos) const
 115 {
 116         char c = par->GetChar(pos);
 117         return SingleWidth(bview, par, pos, c);
 118 }
 119
 120
 121 int LyXText::SingleWidth(BufferView * bview, LyXParagraph * par,
 122                          LyXParagraph::size_type pos, char c) const
 123 {
 124         LyXFont font = GetFont(bview->buffer(), par, pos);
 125
 126         // The most common case is handled first (Asger)
 127         if (IsPrintable(c)) {
 128                 if (font.language()->RightToLeft()) {
 129                         if (font.language()->lang() == "arabic" &&
 130                             (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
 131                              lyxrc.font_norm_type == LyXRC::ISO_10646_1))
 132                                 if (Encoding::IsComposeChar_arabic(c))
 133                                         return 0;
 134                                 else
 135                                         c = TransformChar(c, par, pos);
 136                         else if (font.language()->lang() == "hebrew" &&
 137                                  Encoding::IsComposeChar_hebrew(c))
 138                                 return 0;
 139                 }
 140                 return lyxfont::width(c, font);
 141
 142         } else if (IsHfillChar(c)) {
 143                 return 3;       /* Because of the representation
 144                                  * as vertical lines */
 145 #ifndef NEW_INSETS
 146         } else if (c == LyXParagraph::META_FOOTNOTE ||
 147                    c == LyXParagraph::META_MARGIN ||
 148                    c == LyXParagraph::META_FIG ||
 149                    c == LyXParagraph::META_TAB ||
 150                    c == LyXParagraph::META_WIDE_FIG ||
 151                    c == LyXParagraph::META_WIDE_TAB ||
 152                    c == LyXParagraph::META_ALGORITHM) {
 153                 string fs;
 154                 switch (c) {
 155                 case LyXParagraph::META_MARGIN:
 156                         fs = "margin";
 157                         break;
 158                 case LyXParagraph::META_FIG:
 159                         fs = "fig";
 160                         break;
 161                 case LyXParagraph::META_TAB:
 162                         fs = "tab";
 163                         break;
 164                 case LyXParagraph::META_ALGORITHM:
 165                         fs = "alg";
 166                         break;
 167                 case LyXParagraph::META_WIDE_FIG:
 168                         fs = "wide-fig";
 169                         break;
 170                 case LyXParagraph::META_WIDE_TAB:
 171                         fs = "wide-tab";
 172                         break;
 173                 case LyXParagraph::META_FOOTNOTE:
 174                         fs = "foot";
 175                         break;
 176                 }
 177                 font.decSize();
 178                 font.decSize();
 179                 return lyxfont::width(fs, font);
 180 #endif
 181         } else if (c == LyXParagraph::META_INSET) {
 182                 Inset * tmpinset = par->GetInset(pos);
 183                 if (tmpinset) {
 184                         tmpinset->update(bview, font);
 185                         return tmpinset->width(bview, font);
 186                 } else
 187                         return 0;
 188
 189         } else if (IsSeparatorChar(c))
 190                 c = ' ';
 191         else if (IsNewlineChar(c))
 192                 c = 'n';
 193         return lyxfont::width(c, font);
 194 }
 195
 196
 197 // Returns the paragraph position of the last character in the specified row
 198 LyXParagraph::size_type LyXText::RowLast(Row const * row) const
 199 {
 200         if (row->next() == 0)
 201                 return row->par()->Last() - 1;
 202         else if (row->next()->par() != row->par())
 203                 return row->par()->Last() - 1;
 204         else
 205                 return row->next()->pos() - 1;
 206 }
 207
 208
 209 LyXParagraph::size_type LyXText::RowLastPrintable(Row const * row) const
 210 {
 211         LyXParagraph::size_type last = RowLast(row);
 212         if (last >= row->pos()
 213             && row->next()
 214             && row->next()->par() == row->par()
 215             && row->par()->IsSeparator(last))
 216                 return last - 1;
 217         else
 218                 return last;
 219 }
 220
 221
 222 void LyXText::ComputeBidiTables(Buffer const * buf, Row * row) const
 223 {
 224         bidi_same_direction = true;
 225         if (!lyxrc.rtl_support) {
 226                 bidi_start = -1;
 227                 return;
 228         }
 229
 230         bidi_start = row->pos();
 231         bidi_end = RowLastPrintable(row);
 232
 233         if (bidi_start > bidi_end) {
 234                 bidi_start = -1;
 235                 return;
 236         }
 237
 238         if (bidi_end + 2 - bidi_start >
 239             static_cast<LyXParagraph::size_type>(log2vis_list.size())) {
 240                 LyXParagraph::size_type new_size =
 241                         (bidi_end + 2 - bidi_start < 500) ?
 242                         500 : 2 * (bidi_end + 2 - bidi_start);
 243                 log2vis_list.resize(new_size);
 244                 vis2log_list.resize(new_size);
 245                 bidi_levels.resize(new_size);
 246         }
 247
 248         vis2log_list[bidi_end + 1 - bidi_start] = -1;
 249         log2vis_list[bidi_end + 1 - bidi_start] = -1;
 250
 251         LyXParagraph::size_type stack[2];
 252         bool rtl_par = row->par()->getParLanguage(buf->params)->RightToLeft();
 253         int level = 0;
 254         bool rtl = false;
 255         bool rtl0 = false;
 256         LyXParagraph::size_type main_body = BeginningOfMainBody(buf, row->par());
 257
 258         for (LyXParagraph::size_type lpos = bidi_start;
 259              lpos <= bidi_end; ++lpos) {
 260                 bool is_space = row->par()->IsLineSeparator(lpos);
 261                 LyXParagraph::size_type pos =
 262                         (is_space && lpos + 1 <= bidi_end &&
 263                          !row->par()->IsLineSeparator(lpos + 1) &&
 264                          (
 265 #ifndef NEW_TABULAR
 266                                  !row->par()->table ||
 267 #endif
 268                                  !row->par()->IsNewline(lpos + 1)) )
 269                         ? lpos + 1 : lpos;
 270                 LyXFont font = row->par()->GetFontSettings(buf->params, pos);
 271                 bool new_rtl = font.isVisibleRightToLeft();
 272                 bool new_rtl0 = font.isRightToLeft();
 273                 int new_level;
 274
 275 #ifndef NEW_TABULAR
 276                 if (row->par()->table && row->par()->IsNewline(lpos)) {
 277                         new_level = 0;
 278                         new_rtl = new_rtl0 = false;
 279                 } else
 280 #endif
 281                         if (lpos == main_body - 1
 282                            && row->pos() < main_body - 1
 283                            && row->par()->IsLineSeparator(lpos)) {
 284                         new_level = (rtl_par) ? 1 : 0;
 285                         new_rtl = new_rtl0 = rtl_par;
 286                 } else if (new_rtl0)
 287                         new_level = (new_rtl) ? 1 : 2;
 288                 else
 289                         new_level = (rtl_par) ? 2 : 0;
 290
 291                 if (is_space && new_level >= level) {
 292                         new_level = level;
 293                         new_rtl = rtl;
 294                         new_rtl0 = rtl0;
 295                 }
 296
 297                 int new_level2 = new_level;
 298
 299                 if (level == new_level && rtl0 != new_rtl0) {
 300                         --new_level2;
 301                         log2vis_list[lpos - bidi_start] = (rtl) ? 1 : -1;
 302                 } else if (level < new_level) {
 303                         log2vis_list[lpos - bidi_start] =  (rtl) ? -1 : 1;
 304                         if (new_level > rtl_par)
 305                                 bidi_same_direction = false;
 306                 } else
 307                         log2vis_list[lpos - bidi_start] = (new_rtl) ? -1 : 1;
 308                 rtl = new_rtl;
 309                 rtl0 = new_rtl0;
 310                 bidi_levels[lpos - bidi_start] = new_level;
 311
 312                 while (level > new_level2) {
 313                         LyXParagraph::size_type old_lpos =
 314                                 stack[--level];
 315                         int delta = lpos - old_lpos - 1;
 316                         if (level % 2)
 317                                 delta = -delta;
 318                         log2vis_list[lpos - bidi_start] += delta;
 319                         log2vis_list[old_lpos - bidi_start] += delta;
 320                 }
 321                 while (level < new_level)
 322                         stack[level++] = lpos;
 323         }
 324
 325         while (level > 0) {
 326                 LyXParagraph::size_type old_lpos = stack[--level];
 327                 int delta = bidi_end - old_lpos;
 328                 if (level % 2)
 329                         delta = -delta;
 330                 log2vis_list[old_lpos - bidi_start] += delta;
 331         }
 332
 333         LyXParagraph::size_type vpos = bidi_start - 1;
 334         for (LyXParagraph::size_type lpos = bidi_start;
 335              lpos <= bidi_end; ++lpos) {
 336                 vpos += log2vis_list[lpos - bidi_start];
 337                 vis2log_list[vpos - bidi_start] = lpos;
 338                 log2vis_list[lpos - bidi_start] = vpos;
 339         }
 340 }
 341
 342
 343 // This method requires a previous call to ComputeBidiTables()
 344 bool LyXText::IsBoundary(Buffer const * buf, LyXParagraph * par,
 345                          LyXParagraph::size_type pos) const
 346 {
 347         if (!lyxrc.rtl_support)
 348                 return false;    // This is just for speedup
 349
 350         if (!bidi_InRange(pos - 1)
 351 #ifndef NEW_TABULAR
 352             || (par->table && par->IsNewline(pos-1))
 353 #endif
 354                 )
 355                 return false;
 356
 357         bool rtl = bidi_level(pos - 1) % 2;
 358         bool rtl2 = rtl;
 359         if (pos == par->Last()
 360 #ifndef NEW_TABULAR
 361             || (par->table && par->IsNewline(pos))
 362 #endif
 363                 )
 364                 rtl2 = par->isRightToLeftPar(buf->params);
 365         else if (bidi_InRange(pos))
 366                 rtl2 = bidi_level(pos) % 2;
 367         return rtl != rtl2;
 368 }
 369
 370
 371 bool LyXText::IsBoundary(Buffer const * buf, LyXParagraph * par,
 372                          LyXParagraph::size_type pos,
 373                          LyXFont const & font) const
 374 {
 375         if (!lyxrc.rtl_support)
 376                 return false;    // This is just for speedup
 377
 378         bool rtl = font.isVisibleRightToLeft();
 379         bool rtl2 = rtl;
 380         if (pos == par->Last()
 381 #ifndef NEW_TABULAR
 382             || (par->table && par->IsNewline(pos))
 383 #endif
 384                 )
 385                 rtl2 = par->isRightToLeftPar(buf->params);
 386         else if (bidi_InRange(pos))
 387                 rtl2 =  bidi_level(pos) % 2;
 388         return rtl != rtl2;
 389 }
 390
 391
 392 void LyXText::draw(BufferView * bview, Row const * row,
 393                    LyXParagraph::size_type & vpos,
 394                    int offset, float & x, bool cleared)
 395 {
 396         Painter & pain = bview->painter();
 397
 398         LyXParagraph::size_type pos = vis2log(vpos);
 399         char c = row->par()->GetChar(pos);
 400         float tmpx = x;
 401
 402         if (IsNewlineChar(c)) {
 403                 ++vpos;
 404                 // Draw end-of-line marker
 405                 LyXFont font = GetFont(bview->buffer(), row->par(), pos);
 406                 int wid = lyxfont::width('n', font);
 407                 int asc = lyxfont::maxAscent(font);
 408                 int y = offset + row->baseline();
 409                 int xp[3], yp[3];
 410
 411                 if (bidi_level(pos) % 2 == 0) {
 412                         xp[0] = int(x + wid * 0.375);
 413                         yp[0] = int(y - 0.875 * asc * 0.75);
 414
 415                         xp[1] = int(x);
 416                         yp[1] = int(y - 0.500 * asc * 0.75);
 417
 418                         xp[2] = int(x + wid * 0.375);
 419                         yp[2] = int(y - 0.125 * asc * 0.75);
 420
 421                         pain.lines(xp, yp, 3, LColor::eolmarker);
 422
 423                         xp[0] = int(x);
 424                         yp[0] = int(y - 0.500 * asc * 0.75);
 425
 426                         xp[1] = int(x + wid);
 427                         yp[1] = int(y - 0.500 * asc * 0.75);
 428
 429                         xp[2] = int(x + wid);
 430                         yp[2] = int(y - asc * 0.75);
 431
 432                         pain.lines(xp, yp, 3, LColor::eolmarker);
 433                 } else {
 434                         xp[0] = int(x + wid * 0.625);
 435                         yp[0] = int(y - 0.875 * asc * 0.75);
 436
 437                         xp[1] = int(x + wid);
 438                         yp[1] = int(y - 0.500 * asc * 0.75);
 439
 440                         xp[2] = int(x + wid * 0.625);
 441                         yp[2] = int(y - 0.125 * asc * 0.75);
 442
 443                         pain.lines(xp, yp, 3, LColor::eolmarker);
 444
 445                         xp[0] = int(x + wid);
 446                         yp[0] = int(y - 0.500 * asc * 0.75);
 447
 448                         xp[1] = int(x);
 449                         yp[1] = int(y - 0.500 * asc * 0.75);
 450
 451                         xp[2] = int(x);
 452                         yp[2] = int(y - asc * 0.75);
 453
 454                         pain.lines(xp, yp, 3, LColor::eolmarker);
 455                 }
 456                 x += wid;
 457                 return;
 458         }
 459
 460         LyXFont font = GetFont(bview->buffer(), row->par(), pos);
 461         LyXFont font2 = font;
 462 #ifndef NEW_INSETS
 463         if (c == LyXParagraph::META_FOOTNOTE
 464             || c == LyXParagraph::META_MARGIN
 465             || c == LyXParagraph::META_FIG
 466             || c == LyXParagraph::META_TAB
 467             || c == LyXParagraph::META_WIDE_FIG
 468             || c == LyXParagraph::META_WIDE_TAB
 469             || c == LyXParagraph::META_ALGORITHM) {
 470                 string fs;
 471                 switch (c) {
 472                 case LyXParagraph::META_MARGIN:
 473                         fs = "margin";
 474                         break;
 475                 case LyXParagraph::META_FIG:
 476                         fs = "fig";
 477                         break;
 478                 case LyXParagraph::META_TAB:
 479                         fs = "tab";
 480                         break;
 481                 case LyXParagraph::META_ALGORITHM:
 482                         fs = "alg";
 483                         break;
 484                 case LyXParagraph::META_WIDE_FIG:
 485                         fs = "wide-fig";
 486                         break;
 487                 case LyXParagraph::META_WIDE_TAB:
 488                         fs = "wide-tab";
 489                         break;
 490                 case LyXParagraph::META_FOOTNOTE:
 491                         fs = "foot";
 492                         break;
 493                 }
 494                 font.decSize();
 495                 font.decSize();
 496
 497                 // calculate the position of the footnotemark
 498                 int y = (row->baseline() - lyxfont::maxAscent(font2)
 499                          + lyxfont::maxAscent(font));
 500
 501                 font.setColor(LColor::footnote);
 502
 503                 // draw it and set new x position
 504
 505                 pain.text(int(x), offset + y, fs, font);
 506                 x += lyxfont::width(fs, font);
 507                 pain.line(int(tmpx), offset + row->baseline(),
 508                           int(x), offset + row->baseline(),
 509                           LColor::footnote);
 510
 511                 ++vpos;
 512                 return;
 513         } else
 514 #endif
 515                 if (c == LyXParagraph::META_INSET) {
 516                 Inset * tmpinset = row->par()->GetInset(pos);
 517                 if (tmpinset) {
 518 //                      tmpinset->update(bview, font, false);
 519                         tmpinset->draw(bview, font, offset+row->baseline(), x,
 520                                        cleared);
 521                         if (status == CHANGED_IN_DRAW) {
 522                                 UpdateInset(bview, tmpinset);
 523                                 status = CHANGED_IN_DRAW;
 524                         }
 525                 }
 526                 ++vpos;
 527
 528                 if (lyxrc.mark_foreign_language &&
 529                     font.language()->lang() != "default" &&
 530                     font.language() != bview->buffer()->params.language_info) {
 531                         int y = offset + row->height() - 1;
 532                         pain.line(int(tmpx), y, int(x), y,
 533                                   LColor::language);
 534                 }
 535
 536                 return;
 537         }
 538
 539         /* usual characters, no insets */
 540
 541         // Collect character that we can draw in one command
 542
 543         // This is dirty, but fast. Notice that it will never be too small.
 544         // For the record, I'll note that Microsoft Word has a limit
 545         // of 768 here. We have none :-) (Asger)
 546         // Ok. I am the first to admit that the use of std::string will be
 547         // a tiny bit slower than using a POD char array. However, I claim
 548         // that this slowdown is so small that it is close to inperceptive.
 549         // So IMHO we should go with the easier and clearer implementation.
 550         // And even if 1024 is a large number here it might overflow, string
 551         // will only overflow if the machine is out of memory...
 552         static string textstring;
 553         textstring = c;
 554         ++vpos;
 555
 556         LyXParagraph::size_type last = RowLastPrintable(row);
 557
 558         if (font.language()->lang() == "hebrew") {
 559                 if (Encoding::IsComposeChar_hebrew(c)) {
 560                         int width = lyxfont::width(c, font2);
 561                         int dx = 0;
 562                         for (LyXParagraph::size_type i = pos-1; i >= 0; --i) {
 563                                 c = row->par()->GetChar(i);
 564                                 if (!Encoding::IsComposeChar_hebrew(c)) {
 565                                         if (IsPrintableNonspace(c)) {
 566                                                 int width2 = SingleWidth(bview, row->par(), i, c);
 567                                                 dx = (c == 'ø' || c == 'ã') // dalet / resh
 568                                                         ? width2 - width : (width2 - width) / 2;
 569                                         }
 570                                         break;
 571                                 }
 572                         }
 573                         // Draw nikud
 574                         pain.text(int(x) + dx, offset + row->baseline(),
 575                                   textstring, font);
 576                 } else {
 577                         while (vpos <= last &&
 578                                (pos = vis2log(vpos)) >= 0
 579                                && IsPrintableNonspace(c = row->par()->GetChar(pos))
 580                                && !Encoding::IsComposeChar_hebrew(c)
 581                                && font2 == GetFont(bview->buffer(), row->par(), pos)) {
 582                                 textstring += c;
 583                                 ++vpos;
 584                         }
 585                         // Draw text and set the new x position
 586                         pain.text(int(x), offset + row->baseline(),
 587                                   textstring, font);
 588                         x += lyxfont::width(textstring, font);
 589                 }
 590         } else if (font.language()->lang() == "arabic" &&
 591                    (lyxrc.font_norm_type == LyXRC::ISO_8859_6_8 ||
 592                     lyxrc.font_norm_type == LyXRC::ISO_10646_1)) {
 593                 if (Encoding::IsComposeChar_arabic(c)) {
 594                         c = TransformChar(c, row->par(), pos);
 595                         textstring = c;
 596                         int width = lyxfont::width(c, font2);
 597                         int dx = 0;
 598                         for (LyXParagraph::size_type i = pos-1; i >= 0; --i) {
 599                                 c = row->par()->GetChar(i);
 600                                 if (!Encoding::IsComposeChar_arabic(c)) {
 601                                         if (IsPrintableNonspace(c)) {
 602                                                 int width2 = SingleWidth(bview, row->par(), i, c);
 603                                                 dx = (width2 - width) / 2;
 604                                         }
 605                                         break;
 606                                 }
 607                         }
 608                         // Draw nikud
 609                         pain.text(int(x) + dx, offset + row->baseline(),
 610                                   textstring, font);
 611                 } else {
 612                         textstring = TransformChar(c, row->par(), pos);
 613                         while (vpos <= last &&
 614                                (pos = vis2log(vpos)) >= 0
 615                                && IsPrintableNonspace(c = row->par()->GetChar(pos))
 616                                && !Encoding::IsComposeChar_arabic(c)
 617                                && font2 == GetFont(bview->buffer(), row->par(), pos)) {
 618                                 c = TransformChar(c, row->par(), pos);
 619                                 textstring += c;
 620                                 ++vpos;
 621                         }
 622                         // Draw text and set the new x position
 623                         pain.text(int(x), offset + row->baseline(),
 624                                   textstring, font);
 625                         x += lyxfont::width(textstring, font);
 626                 }
 627         } else {
 628                 while (vpos <= last &&
 629                        (pos = vis2log(vpos)) >= 0
 630                        && IsPrintableNonspace(c = row->par()->GetChar(pos))
 631                        && font2 == GetFont(bview->buffer(), row->par(), pos)) {
 632                         textstring += c;
 633                         ++vpos;
 634                 }
 635                 // Draw text and set the new x position
 636                 pain.text(int(x), offset + row->baseline(), textstring, font);
 637                 x += lyxfont::width(textstring, font);
 638         }
 639
 640         if (lyxrc.mark_foreign_language &&
 641             font.language()->lang() != "default" &&
 642             font.language() != bview->buffer()->params.language_info) {
 643                 int y = offset + row->height() - 1;
 644                 pain.line(int(tmpx), y, int(x), y,
 645                           LColor::language);
 646         }
 647
 648         // If we want ulem.sty support, drawing
 649         // routines should go here. (Asger)
 650         // Why shouldn't LyXFont::drawText handle it internally?
 651 }
 652
 653
 654 // Returns the left beginning of the text.
 655 // This information cannot be taken from the layouts-objekt, because in
 656 // LaTeX the beginning of the text fits in some cases (for example sections)
 657 // exactly the label-width.
 658 int LyXText::LeftMargin(BufferView * bview, Row const * row) const
 659 {
 660         LyXLayout const & layout =
 661                 textclasslist.Style(bview->buffer()->params.textclass,
 662                                     row->par()->GetLayout());
 663
 664         string parindent = layout.parindent;
 665
 666 #ifndef NEW_TABULAR
 667         /* table stuff -- begin */
 668         if (row->par()->table)
 669                 parindent.erase();
 670         /* table stuff -- end */
 671 #endif
 672         int x = LYX_PAPER_MARGIN;
 673
 674         x += lyxfont::signedWidth(textclasslist
 675                                   .TextClass(bview->buffer()->params.textclass)
 676                                   .leftmargin(),
 677                                   textclasslist
 678                                   .TextClass(bview->buffer()->params.textclass)
 679                                   .defaultfont());
 680 #ifndef NEW_INSETS
 681         if (row->par()->footnoteflag == LyXParagraph::OPEN_FOOTNOTE)  {
 682                 LyXFont font(LyXFont::ALL_SANE);
 683                 font.setSize(LyXFont::SIZE_SMALL);
 684                 x += lyxfont::width("Mwide-figM", font)
 685                         + LYX_PAPER_MARGIN/2;
 686         }
 687 #endif
 688         // this is the way, LyX handles the LaTeX-Environments.
 689         // I have had this idea very late, so it seems to be a
 690         // later added hack and this is true
 691         if (!row->par()->GetDepth()) {
 692                 if (!row->par()->GetLayout()) {
 693                         // find the previous same level paragraph
 694 #ifndef NEW_INSETS
 695                         if (row->par()->FirstPhysicalPar()->Previous()) {
 696 #else
 697                         if (row->par()->Previous()) {
 698 #endif
 699                                 LyXParagraph * newpar = row->par()
 700                                         ->DepthHook(row->par()->GetDepth());
 701                                 if (newpar &&
 702                                     textclasslist.Style(bview->buffer()->params.textclass,
 703                                                         newpar->GetLayout())
 704                                     .nextnoindent)
 705                                         parindent.erase();
 706                         }
 707                 }
 708         } else {
 709                 // find the next level paragraph
 710
 711                 LyXParagraph * newpar =
 712                         row->par()->DepthHook(row->par()->GetDepth()-1);
 713
 714                 // make a corresponding row. Needed to call LeftMargin()
 715
 716                 // check wether it is a sufficent paragraph
 717                 if (newpar
 718 #ifndef NEW_INSETS
 719                     && newpar->footnoteflag == row->par()->footnoteflag
 720 #endif
 721                     && textclasslist
 722                         .Style(bview->buffer()->params.textclass,
 723                                newpar->GetLayout()).isEnvironment()) {
 724                         Row dummyrow;
 725                         dummyrow.par(newpar);
 726                         dummyrow.pos(newpar->Last());
 727                         x = LeftMargin(bview, &dummyrow);
 728                 } else {
 729                         // this is no longer an error, because this function
 730                         // is used to clear impossible depths after changing
 731                         // a layout. Since there is always a redo,
 732                         // LeftMargin() is always called
 733 #ifndef NEW_INSETS
 734                         row->par()->FirstPhysicalPar()->depth = 0;
 735 #else
 736                         row->par()->depth = 0;
 737 #endif
 738                 }
 739
 740                 if (newpar && !row->par()->GetLayout()) {
 741 #ifndef NEW_INSETS
 742                         if (newpar->FirstPhysicalPar()->noindent)
 743 #else
 744                         if (newpar->noindent)
 745 #endif
 746                                 parindent.erase();
 747                         else
 748                                 parindent = textclasslist
 749                                         .Style(bview->buffer()->params.textclass,
 750                                                newpar->GetLayout()).parindent;
 751                 }
 752
 753         }
 754
 755         LyXFont labelfont = GetFont(bview->buffer(), row->par(), -2);
 756         switch (layout.margintype) {
 757         case MARGIN_DYNAMIC:
 758                 if (!layout.leftmargin.empty()) {
 759                         x += lyxfont::signedWidth(layout.leftmargin,
 760                                                   textclasslist
 761                                                   .TextClass(bview->buffer()->params.
 762                                                              textclass)
 763                                                   .defaultfont());
 764                 }
 765                 if (!row->par()->GetLabelstring().empty()) {
 766                         x += lyxfont::signedWidth(layout.labelindent,
 767                                                   labelfont);
 768                         x += lyxfont::width(row->par()->GetLabelstring(),
 769                                             labelfont);
 770                         x += lyxfont::width(layout.labelsep, labelfont);
 771                 }
 772                 break;
 773         case MARGIN_MANUAL:
 774                 x += lyxfont::signedWidth(layout.labelindent, labelfont);
 775                 if (row->pos() >= BeginningOfMainBody(bview->buffer(), row->par())) {
 776                         if (!row->par()->GetLabelWidthString().empty()) {
 777                                 x += lyxfont::width(row->par()->GetLabelWidthString(),
 778                                                labelfont);
 779                                 x += lyxfont::width(layout.labelsep, labelfont);
 780                         }
 781                 }
 782                 break;
 783         case MARGIN_STATIC:
 784                 x += lyxfont::signedWidth(layout.leftmargin, textclasslist.TextClass(bview->buffer()->params.textclass).defaultfont()) * 4
 785                         / (row->par()->GetDepth() + 4);
 786                 break;
 787         case MARGIN_FIRST_DYNAMIC:
 788                 if (layout.labeltype == LABEL_MANUAL) {
 789                         if (row->pos() >= BeginningOfMainBody(bview->buffer(), row->par())) {
 790                                 x += lyxfont::signedWidth(layout.leftmargin,
 791                                                           labelfont);
 792                         } else {
 793                                 x += lyxfont::signedWidth(layout.labelindent,
 794                                                           labelfont);
 795                         }
 796                 } else if (row->pos()
 797                            // Special case to fix problems with
 798                            // theorems (JMarc)
 799                            || (layout.labeltype == LABEL_STATIC
 800                                && layout.latextype == LATEX_ENVIRONMENT
 801                                && ! row->par()->IsFirstInSequence())) {
 802                         x += lyxfont::signedWidth(layout.leftmargin,
 803                                                   labelfont);
 804                 } else if (layout.labeltype != LABEL_TOP_ENVIRONMENT
 805                            && layout.labeltype != LABEL_BIBLIO
 806                            && layout.labeltype !=
 807                            LABEL_CENTERED_TOP_ENVIRONMENT) {
 808                         x += lyxfont::signedWidth(layout.labelindent,
 809                                                   labelfont);
 810                         x += lyxfont::width(layout.labelsep, labelfont);
 811                         x += lyxfont::width(row->par()->GetLabelstring(),
 812                                             labelfont);
 813                 }
 814                 break;
 815
 816         case MARGIN_RIGHT_ADDRESS_BOX:
 817         {
 818                 // ok, a terrible hack. The left margin depends on the widest
 819                 // row in this paragraph. Do not care about footnotes, they
 820                 // are *NOT* allowed in the LaTeX realisation of this layout.
 821
 822                 // find the first row of this paragraph
 823                 Row const * tmprow = row;
 824                 while (tmprow->previous()
 825                        && tmprow->previous()->par() == row->par())
 826                         tmprow = tmprow->previous();
 827
 828                 int minfill = tmprow->fill();
 829                 while (tmprow->next() && tmprow->next()->par() == row->par()) {
 830                         tmprow = tmprow->next();
 831                         if (tmprow->fill() < minfill)
 832                                 minfill = tmprow->fill();
 833                 }
 834
 835                 x += lyxfont::signedWidth(layout.leftmargin,
 836                                           textclasslist
 837                                           .TextClass(bview->buffer()->params.textclass)
 838                                           .defaultfont());
 839                 x += minfill;
 840         }
 841         break;
 842         }
 843         if ((workWidth(bview) > 0) &&
 844             (row->par()->pextra_type == LyXParagraph::PEXTRA_INDENT))
 845         {
 846                 if (!row->par()->pextra_widthp.empty()) {
 847                         x += workWidth(bview) *
 848                                 atoi(row->par()->pextra_widthp.c_str()) / 100;
 849                 } else if (!row->par()->pextra_width.empty()) {
 850                         int xx = VSpace(row->par()->pextra_width).inPixels(bview);
 851                         if (xx > workWidth(bview))
 852                                 xx = workWidth(bview) * 80 / 100;
 853                         x += xx;
 854                 } else { // should not happen
 855                         LyXFont font(LyXFont::ALL_SANE);
 856                         x += lyxfont::width("XXXXXX", font);
 857                 }
 858         }
 859
 860         int align; // wrong type
 861 #ifndef NEW_INSETS
 862         if (row->par()->FirstPhysicalPar()->align == LYX_ALIGN_LAYOUT)
 863                 align = layout.align;
 864         else
 865                 align = row->par()->FirstPhysicalPar()->align;
 866 #else
 867         if (row->par()->align == LYX_ALIGN_LAYOUT)
 868                 align = layout.align;
 869         else
 870                 align = row->par()->align;
 871 #endif
 872         // set the correct parindent
 873         if (row->pos() == 0) {
 874                 if ((layout.labeltype == LABEL_NO_LABEL
 875                      || layout.labeltype == LABEL_TOP_ENVIRONMENT
 876                      || layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT
 877                      || (layout.labeltype == LABEL_STATIC
 878                          && layout.latextype == LATEX_ENVIRONMENT
 879                          && ! row->par()->IsFirstInSequence()))
 880 #ifndef NEW_INSETS
 881                     && row->par() == row->par()->FirstPhysicalPar()
 882 #endif
 883                     && align == LYX_ALIGN_BLOCK
 884                     && !row->par()->noindent
 885                     && (row->par()->layout ||
 886                         bview->buffer()->params.paragraph_separation ==
 887                         BufferParams::PARSEP_INDENT))
 888                         x += lyxfont::signedWidth(parindent,
 889                                                   textclasslist
 890                                                   .TextClass(bview->buffer()->params
 891                                                              .textclass)
 892                                                   .defaultfont());
 893                 else if (layout.labeltype == LABEL_BIBLIO) {
 894                         // ale970405 Right width for bibitems
 895                         x += bibitemMaxWidth(bview,textclasslist
 896                                              .TextClass(bview->buffer()->params
 897                                                         .textclass)
 898                                              .defaultfont());
 899                 }
 900         }
 901         return x;
 902 }
 903
 904
 905 int LyXText::RightMargin(Buffer const * buf, Row const * row) const
 906 {
 907         LyXLayout const & layout =
 908                 textclasslist.Style(buf->params.textclass,
 909                                     row->par()->GetLayout());
 910
 911         int x = LYX_PAPER_MARGIN
 912                 + lyxfont::signedWidth(textclasslist
 913                                        .TextClass(buf->params.textclass)
 914                                        .rightmargin(),
 915                                        textclasslist
 916                                        .TextClass(buf->params.textclass)
 917                                        .defaultfont());
 918
 919 #ifndef NEW_INSETS
 920         if (row->par()->footnoteflag == LyXParagraph::OPEN_FOOTNOTE)  {
 921                 x += LYX_PAPER_MARGIN / 2;
 922         }
 923 #endif
 924         // this is the way, LyX handles the LaTeX-Environments.
 925         // I have had this idea very late, so it seems to be a
 926         // later added hack and this is true
 927         if (row->par()->GetDepth()) {
 928                 // find the next level paragraph
 929
 930                 LyXParagraph * newpar = row->par();
 931
 932 #ifndef NEW_INSETS
 933                 do {
 934                         newpar = newpar->FirstPhysicalPar()->Previous();
 935                         if (newpar)
 936                                 newpar = newpar->FirstPhysicalPar();
 937                 } while (newpar && newpar->GetDepth() >= row->par()->GetDepth()
 938                          && newpar->footnoteflag == row->par()->footnoteflag);
 939 #else
 940                 do {
 941                         newpar = newpar->Previous();
 942                 } while (newpar
 943                          && newpar->GetDepth() >= row->par()->GetDepth());
 944 #endif
 945
 946                 // make a corresponding row. Needed to call LeftMargin()
 947
 948                 // check wether it is a sufficent paragraph
 949                 if (newpar
 950 #ifndef NEW_INSETS
 951                     && newpar->footnoteflag == row->par()->footnoteflag
 952 #endif
 953                     && textclasslist.Style(buf->params.textclass,
 954                                            newpar->GetLayout())
 955                        .isEnvironment()) {
 956                         Row dummyrow;
 957                         dummyrow.par(newpar);
 958                         dummyrow.pos(0);
 959                         x = RightMargin(buf, &dummyrow);
 960                 } else {
 961                         // this is no longer an error, because this function
 962                         // is used to clear impossible depths after changing
 963                         // a layout. Since there is always a redo,
 964                         // LeftMargin() is always called
 965 #ifndef NEW_INSETS
 966                         row->par()->FirstPhysicalPar()->depth = 0;
 967 #else
 968                         row->par()->depth = 0;
 969 #endif
 970                 }
 971         }
 972
 973         //lyxerr << "rightmargin: " << layout->rightmargin << endl;
 974         x += lyxfont::signedWidth(layout.rightmargin, textclasslist
 975                                   .TextClass(buf->params.textclass)
 976                                   .defaultfont()) * 4 / (row->par()->GetDepth()
 977                                                          + 4);
 978         return x;
 979 }
 980
 981
 982 int LyXText::LabelEnd (BufferView * bview, Row const * row) const
 983 {
 984         if (textclasslist.Style(bview->buffer()->params.textclass,
 985                                 row->par()->GetLayout()).margintype
 986             == MARGIN_MANUAL) {
 987                 Row tmprow;
 988                 tmprow = *row;
 989                 tmprow.pos(row->par()->Last());
 990                 return LeftMargin(bview, &tmprow);  /* just the beginning
 991                                                 of the main body */
 992         } else
 993                 return 0;  /* LabelEnd is only needed, if the
 994                               layout fills a flushleft
 995                               label. */
 996 }
 997
 998
 999 #ifndef NEW_TABULAR
1000 /* table stuff -- begin*/
1001 int LyXText::NumberOfCell(LyXParagraph * par,
1002                           LyXParagraph::size_type pos) const
1003 {
1004    int cell = 0;
1005    LyXParagraph::size_type tmp_pos = 0;
1006    while (tmp_pos < pos) {
1007       if (par->IsNewline(tmp_pos))
1008          ++cell;
1009       ++tmp_pos;
1010    }
1011    return cell;
1012 }
1013
1014
1015 int LyXText::WidthOfCell(BufferView * bview, LyXParagraph * par,
1016                          LyXParagraph::size_type & pos) const
1017 {
1018    int w = 0;
1019    while (pos < par->Last() && !par->IsNewline(pos)) {
1020       w += SingleWidth(bview, par, pos);
1021       ++pos;
1022    }
1023    if (par->IsNewline(pos))
1024       ++pos;
1025    return w;
1026 }
1027
1028
1029 bool LyXText::HitInTable(BufferView * bview, Row * row, int x) const
1030 {
1031         float tmpx;
1032         float fill_separator, fill_hfill, fill_label_hfill;
1033         if (!row->par()->table)
1034                 return false;
1035         PrepareToPrint(bview, row, tmpx, fill_separator,
1036                        fill_hfill, fill_label_hfill, false);
1037         return (x > tmpx && x < tmpx + row->par()->table->WidthOfTable());
1038 }
1039
1040
1041 bool LyXText::MouseHitInTable(BufferView * bview, int x, long y) const
1042 {
1043         Row * row = GetRowNearY(y);
1044         return HitInTable(bview, row, x);
1045 }
1046
1047
1048 /* table stuff -- end*/
1049 #endif
1050
1051
1052 // get the next breakpoint in a given paragraph
1053 LyXParagraph::size_type
1054 LyXText::NextBreakPoint(BufferView * bview, Row const * row, int width) const
1055 {
1056         LyXParagraph * par = row->par();
1057         LyXParagraph::size_type pos = row->pos();
1058
1059         if (width < 0)
1060                 return par->Last();
1061 #ifndef NEW_TABULAR
1062         /* table stuff -- begin*/
1063         if (par->table) {
1064                 while (pos < par->size()
1065                        && (!par->IsNewline(pos)
1066                            || !par->table->IsFirstCell(NumberOfCell(par, pos + 1)))) {
1067                         if (par->GetChar(pos) == LyXParagraph::META_INSET &&
1068                             par->GetInset(pos) && par->GetInset(pos)->display()){
1069                                 par->GetInset(pos)->display(false);
1070                         }
1071                         ++pos;
1072                 }
1073                 return pos;
1074         }
1075         /* table stuff -- end*/
1076 #endif
1077         // position of the last possible breakpoint
1078         // -1 isn't a suitable value, but a flag
1079         LyXParagraph::size_type last_separator = -1;
1080         width -= RightMargin(bview->buffer(), row);
1081
1082         LyXParagraph::size_type main_body = BeginningOfMainBody(bview->buffer(), par);
1083         LyXLayout const & layout =
1084                 textclasslist.Style(bview->buffer()->params.textclass, par->GetLayout());
1085         LyXParagraph::size_type i = pos;
1086
1087         if (layout.margintype == MARGIN_RIGHT_ADDRESS_BOX) {
1088                 /* special code for right address boxes, only newlines count */
1089                 while (i < par->Last()) {
1090                         if (par->IsNewline(i)) {
1091                                 last_separator = i;
1092                                 i = par->Last() - 1; // this means break
1093                                 //x = width;
1094                         } else if (par->GetChar(i) == LyXParagraph::META_INSET &&
1095                                    par->GetInset(i) && par->GetInset(i)->display()){
1096                                 par->GetInset(i)->display(false);
1097                         }
1098                         ++i;
1099                 }
1100         } else {
1101                 // Last position is an invariant
1102                 LyXParagraph::size_type const last =
1103                         par->Last();
1104                 // this is the usual handling
1105                 int x = LeftMargin(bview, row);
1106                 bool doitonetime = true;
1107                 while (doitonetime || ((x < width) && (i < last))) {
1108                         doitonetime = false;
1109                         char c = par->GetChar(i);
1110                         if (IsNewlineChar(c)) {
1111                                 last_separator = i;
1112                                 x = width; // this means break
1113                         } else if (c == LyXParagraph::META_INSET &&
1114                                    par->GetInset(i)) {
1115
1116                                 // check wether a Display() inset is
1117                                 // valid here. if not, change it to
1118                                 // non-display
1119                                 if (par->GetInset(i)->display() &&
1120                                     (layout.isCommand() ||
1121                                      ((layout.labeltype == LABEL_MANUAL) &&
1122                                       (i < BeginningOfMainBody(bview->buffer(), par))))) {
1123                                         // display istn't allowd
1124                                         par->GetInset(i)->display(false);
1125                                         x += SingleWidth(bview, par, i, c);
1126                                 } else if (par->GetInset(i)->display() ||
1127                                          par->GetInset(i)->needFullRow()) {
1128                                         // So break the line here
1129                                         if (i == pos) {
1130                                                 if (pos < last-1) {
1131                                                         last_separator = i;
1132                                                         if (IsLineSeparatorChar(par->GetChar(i+1)))
1133                                                                 ++last_separator;
1134                                                 } else
1135                                                         last_separator = last; // to avoid extra rows
1136                                         } else
1137                                                 last_separator = i - 1;
1138                                         x = width;  // this means break
1139                                 } else {
1140 #if 0
1141                                         last_separator = i;
1142                                         x += width;
1143 #else
1144                                         x += SingleWidth(bview, par, i, c);
1145 #endif
1146                                 }
1147                         } else  {
1148                                 if (IsLineSeparatorChar(c))
1149                                         last_separator = i;
1150                                 x += SingleWidth(bview, par, i, c);
1151                         }
1152                         ++i;
1153                         if (i == main_body) {
1154                                 x += lyxfont::width(layout.labelsep,
1155                                                     GetFont(bview->buffer(), par, -2));
1156                                 if (par->IsLineSeparator(i - 1))
1157                                         x-= SingleWidth(bview, par, i - 1);
1158                                 int left_margin = LabelEnd(bview, row);
1159                                 if (x < left_margin)
1160                                         x = left_margin;
1161                         }
1162                 }
1163                 // end of paragraph is always a suitable separator
1164                 if (i == last && x < width)
1165                         last_separator = i;
1166         }
1167
1168         // well, if last_separator is still 0, the line isn't breakable.
1169         // don't care and cut simply at the end
1170         if (last_separator < 0) {
1171                 last_separator = i;
1172         }
1173
1174         // manual labels cannot be broken in LaTeX, do not care
1175         if (main_body && last_separator < main_body)
1176                 last_separator = main_body - 1;
1177
1178         return last_separator;
1179 }
1180
1181
1182 // returns the minimum space a row needs on the screen in pixel
1183 int LyXText::Fill(BufferView * bview, Row * row, int paper_width) const
1184 {
1185         if (paper_width < 0)
1186                 return 0;
1187
1188         int w, fill;
1189         // get the pure distance
1190         LyXParagraph::size_type last = RowLastPrintable(row);
1191 #ifndef NEW_TABULAR
1192         /* table stuff -- begin */
1193         if (row->par()->table) {
1194                 // for tables FILL does calculate the widthes of each cell in
1195                 // the row
1196                 LyXParagraph::size_type pos = row->pos();
1197                 int cell = NumberOfCell(row->par(), pos);
1198                 w = 0;
1199                 do {
1200                         row->par()->table->SetWidthOfCell(cell,
1201                                                         WidthOfCell(bview,
1202                                                                     row->par(),
1203                                                                     pos));
1204                         ++cell;
1205                 } while (pos <= last && !row->par()->table->IsFirstCell(cell));
1206                 // don't forget the very last table cell without characters
1207                 if (cell == row->par()->table->GetNumberOfCells() - 1)
1208                         row->par()->table->SetWidthOfCell(cell,
1209                                                         WidthOfCell(bview,
1210                                                                     row->par(),
1211                                                                     pos));
1212
1213                 return 0; /* width of table cannot be returned since
1214                            * we cannot guarantee its correct value at
1215                            * this point. */
1216         }
1217         /* table stuff -- end*/
1218 #endif
1219
1220         // special handling of the right address boxes
1221         if (textclasslist.Style(bview->buffer()->params.textclass,
1222                                 row->par()->GetLayout()).margintype
1223             == MARGIN_RIGHT_ADDRESS_BOX) {
1224                 int tmpfill = row->fill();
1225                 row->fill(0); // the minfill in MarginLeft()
1226                 w = LeftMargin(bview, row);
1227                 row->fill(tmpfill);
1228         } else
1229                 w = LeftMargin(bview, row);
1230
1231         LyXLayout const & layout = textclasslist.Style(bview->buffer()->params.textclass,
1232                                                        row->par()->GetLayout());
1233         LyXParagraph::size_type main_body =
1234                 BeginningOfMainBody(bview->buffer(), row->par());
1235         LyXParagraph::size_type i = row->pos();
1236
1237         while (i <= last) {
1238                 if (main_body > 0 && i == main_body) {
1239                         w += lyxfont::width(layout.labelsep, GetFont(bview->buffer(), row->par(), -2));
1240                         if (row->par()->IsLineSeparator(i - 1))
1241                                 w -= SingleWidth(bview, row->par(), i - 1);
1242                         int left_margin = LabelEnd(bview, row);
1243                         if (w < left_margin)
1244                                 w = left_margin;
1245                 }
1246                 w += SingleWidth(bview, row->par(), i);
1247                 ++i;
1248         }
1249         if (main_body > 0 && main_body > last) {
1250                 w += lyxfont::width(layout.labelsep, GetFont(bview->buffer(), row->par(), -2));
1251                 if (last >= 0 && row->par()->IsLineSeparator(last))
1252                         w -= SingleWidth(bview, row->par(), last);
1253                 int left_margin = LabelEnd(bview, row);
1254                 if (w < left_margin)
1255                         w = left_margin;
1256         }
1257
1258         fill = paper_width - w - RightMargin(bview->buffer(), row);
1259         return fill;
1260 }
1261
1262
1263 // returns the minimum space a manual label needs on the screen in pixel
1264 int LyXText::LabelFill(BufferView * bview, Row const * row) const
1265 {
1266         LyXParagraph::size_type last = BeginningOfMainBody(bview->buffer(), row->par())-1;
1267         // -1 because a label ends either with a space that is in the label,
1268         // or with the beginning of a footnote that is outside the label.
1269
1270         // I don't understand this code in depth, but sometimes "last" is
1271         // less than 0 and this causes a crash. This fix seems to work
1272         // correctly, but I bet the real error is elsewhere.  The bug is
1273         // triggered when you have an open footnote in a paragraph
1274         // environment with a manual label. (Asger)
1275         if (last < 0) last = 0;
1276
1277         if (row->par()->IsLineSeparator(last)) /* a sepearator at this end
1278                                                 does not count */
1279                 --last;
1280
1281         int w = 0;
1282         int i = row->pos();
1283         while (i <= last) {
1284                 w += SingleWidth(bview, row->par(), i);
1285                 ++i;
1286         }
1287
1288         int fill = 0;
1289         if (!row->par()->labelwidthstring.empty()) {
1290                 fill = max(lyxfont::width(row->par()->labelwidthstring,
1291                                           GetFont(bview->buffer(), row->par(), -2)) - w,
1292                            0);
1293         }
1294
1295         return fill;
1296 }
1297
1298
1299 // returns the number of separators in the specified row. The separator
1300 // on the very last column doesnt count
1301 int LyXText::NumberOfSeparators(Buffer const * buf, Row const * row) const
1302 {
1303         int last = RowLast(row);
1304         int p = max(row->pos(), BeginningOfMainBody(buf, row->par()));
1305         int n = 0;
1306         for (; p < last; ++p) {
1307                 if (row->par()->IsSeparator(p)) {
1308                         ++n;
1309                 }
1310         }
1311         return n;
1312 }
1313
1314
1315 // returns the number of hfills in the specified row. The LyX-Hfill is
1316 // a LaTeX \hfill so that the hfills at the beginning and at the end were
1317 // ignored. This is *MUCH* more usefull than not to ignore!
1318 int LyXText::NumberOfHfills(Buffer const * buf, Row const * row) const
1319 {
1320         int last = RowLast(row);
1321         int first = row->pos();
1322         if (first) { /* hfill *DO* count at the beginning
1323                       * of paragraphs! */
1324                 while(first <= last && row->par()->IsHfill(first))
1325                         ++first;
1326         }
1327
1328         first = max(first, BeginningOfMainBody(buf, row->par()));
1329         int n = 0;
1330         for (int p = first; p <= last; ++p) { // last, because the end is ignored!
1331                 if (row->par()->IsHfill(p)) {
1332                         ++n;
1333                 }
1334         }
1335         return n;
1336 }
1337
1338
1339 // like NumberOfHfills, but only those in the manual label!
1340 int LyXText::NumberOfLabelHfills(Buffer const * buf, Row const * row) const
1341 {
1342         LyXParagraph::size_type last = RowLast(row);
1343         LyXParagraph::size_type first = row->pos();
1344         if (first) { /* hfill *DO* count at the beginning
1345                       * of paragraphs! */
1346                 while(first < last && row->par()->IsHfill(first))
1347                         ++first;
1348         }
1349
1350         last = min(last, BeginningOfMainBody(buf, row->par()));
1351         int n = 0;
1352         for (LyXParagraph::size_type p = first;
1353              p < last; ++p) {  // last, because the end is ignored!
1354                 if (row->par()->IsHfill(p)) {
1355                         ++n;
1356                 }
1357         }
1358         return n;
1359 }
1360
1361
1362 // returns true, if a expansion is needed.
1363 // Rules are given by LaTeX
1364 bool LyXText::HfillExpansion(Buffer const * buf, Row const * row_ptr,
1365                              LyXParagraph::size_type pos) const
1366 {
1367         // by the way, is it a hfill?
1368         if (!row_ptr->par()->IsHfill(pos))
1369                 return false;
1370
1371         // at the end of a row it does not count
1372         if (pos >= RowLast(row_ptr))
1373                 return false;
1374
1375         // at the beginning of a row it does not count, if it is not
1376         // the first row of a paragaph
1377         if (!row_ptr->pos())
1378                 return true;
1379
1380         // in some labels  it does not count
1381         if (textclasslist.Style(buf->params.textclass,
1382                                 row_ptr->par()->GetLayout()).margintype
1383             != MARGIN_MANUAL
1384             && pos < BeginningOfMainBody(buf, row_ptr->par()))
1385                 return false;
1386
1387         // if there is anything between the first char of the row and
1388         // the sepcified position that is not a newline and not a hfill,
1389         // the hfill will count, otherwise not
1390         LyXParagraph::size_type i = row_ptr->pos();
1391         while (i < pos && (row_ptr->par()->IsNewline(i)
1392                            || row_ptr->par()->IsHfill(i)))
1393                 ++i;
1394
1395         return i != pos;
1396 }
1397
1398
1399 void LyXText::SetHeightOfRow(BufferView * bview, Row * row_ptr) const
1400 {
1401     /* get the maximum ascent and the maximum descent */
1402    int asc = 0, desc = 0, pos = 0;
1403    float layoutasc = 0;
1404    float layoutdesc = 0;
1405    float tmptop = 0;
1406    LyXFont tmpfont;
1407    Inset * tmpinset = 0;
1408
1409    /* this must not happen before the currentrow for clear reasons.
1410       so the trick is just to set the current row onto this row */
1411    long unused_y;
1412    GetRow(row_ptr->par(), row_ptr->pos(), unused_y);
1413
1414    /* ok , let us initialize the maxasc and maxdesc value.
1415     * This depends in LaTeX of the font of the last character
1416     * in the paragraph. The hack below is necessary because
1417     * of the possibility of open footnotes */
1418
1419    /* Correction: only the fontsize count. The other properties
1420       are taken from the layoutfont. Nicer on the screen :) */
1421 #ifndef NEW_INSETS
1422    LyXParagraph * par = row_ptr->par()->LastPhysicalPar();
1423    LyXParagraph * firstpar = row_ptr->par()->FirstPhysicalPar();
1424 #else
1425    LyXParagraph * par = row_ptr->par();
1426    LyXParagraph * firstpar = row_ptr->par();
1427 #endif
1428
1429    LyXLayout const & layout = textclasslist.Style(bview->buffer()->params.textclass,
1430                                                   firstpar->GetLayout());
1431
1432    LyXFont font = GetFont(bview->buffer(), par, par->Last() - 1);
1433    LyXFont::FONT_SIZE size = font.size();
1434    font = GetFont(bview->buffer(), par, -1);
1435    font.setSize(size);
1436
1437    LyXFont labelfont = GetFont(bview->buffer(), par, -2);
1438
1439    float spacing_val = 1.0;
1440    if (!row_ptr->par()->spacing.isDefault()) {
1441            spacing_val = row_ptr->par()->spacing.getValue();
1442    } else {
1443            spacing_val = bview->buffer()->params.spacing.getValue();
1444    }
1445    //lyxerr << "spacing_val = " << spacing_val << endl;
1446
1447    int maxasc = int(lyxfont::maxAscent(font) *
1448                    layout.spacing.getValue() *
1449                    spacing_val);
1450    int maxdesc = int(lyxfont::maxDescent(font) *
1451                     layout.spacing.getValue() *
1452                     spacing_val);
1453    int pos_end = RowLast(row_ptr);
1454    int labeladdon = 0;
1455    int maxwidth = 0;
1456
1457    // Check if any insets are larger
1458    for (pos = row_ptr->pos(); pos <= pos_end; ++pos) {
1459            if (row_ptr->par()->GetChar(pos) == LyXParagraph::META_INSET) {
1460                    tmpfont = GetFont(bview->buffer(), row_ptr->par(), pos);
1461                    tmpinset = row_ptr->par()->GetInset(pos);
1462                    if (tmpinset) {
1463                            tmpinset->update(bview, tmpfont);
1464                            asc = tmpinset->ascent(bview, tmpfont);
1465                            desc = tmpinset->descent(bview, tmpfont);
1466                            maxwidth += tmpinset->width(bview, tmpfont);
1467                            maxasc = max(maxasc, asc);
1468                            maxdesc = max(maxdesc, desc);
1469                    }
1470            } else {
1471                    maxwidth += SingleWidth(bview, row_ptr->par(), pos);
1472            }
1473    }
1474
1475    // Check if any custom fonts are larger (Asger)
1476    // This is not completely correct, but we can live with the small,
1477    // cosmetic error for now.
1478    LyXFont::FONT_SIZE maxsize =
1479            row_ptr->par()->HighestFontInRange(row_ptr->pos(),
1480                                               pos_end);
1481    if (maxsize > font.size()) {
1482         font.setSize(maxsize);
1483
1484         asc = lyxfont::maxAscent(font);
1485         desc = lyxfont::maxDescent(font);
1486         if (asc > maxasc)
1487                 maxasc = asc;
1488         if (desc > maxdesc)
1489                 maxdesc = desc;
1490    }
1491
1492 #ifndef NEW_TABULAR
1493    /* table stuff -- begin*/
1494    if (row_ptr->par()->table){
1495      // stretch the rows a bit
1496       maxasc += 1;
1497       maxdesc += 1;
1498    }
1499    /* table stuff -- end*/
1500 #endif
1501
1502    // This is nicer with box insets:
1503    ++maxasc;
1504    ++maxdesc;
1505
1506    row_ptr->ascent_of_text(maxasc);
1507
1508    /* is it a top line? */
1509    if (!row_ptr->pos() && (row_ptr->par() == firstpar)) {
1510
1511       /* some parksips VERY EASY IMPLEMENTATION */
1512       if (bview->buffer()->params.paragraph_separation ==
1513           BufferParams::PARSEP_SKIP) {
1514          if (layout.isParagraph()
1515              && firstpar->GetDepth() == 0
1516              && firstpar->Previous())
1517             maxasc += bview->buffer()->params.getDefSkip().inPixels(bview);
1518          else if (firstpar->Previous()
1519                   && textclasslist.Style(bview->buffer()->params.textclass,
1520                            firstpar->Previous()->GetLayout()).isParagraph()
1521                   && firstpar->Previous()->GetDepth() == 0)
1522            // is it right to use defskip here too? (AS)
1523            maxasc += bview->buffer()->params.getDefSkip().inPixels(bview);
1524       }
1525
1526       /* the paper margins */
1527       if (!row_ptr->par()->previous && bv_owner)
1528          maxasc += LYX_PAPER_MARGIN;
1529
1530       /* add the vertical spaces, that the user added */
1531       if (firstpar->added_space_top.kind() != VSpace::NONE)
1532          maxasc += int(firstpar->added_space_top.inPixels(bview));
1533
1534       /* do not forget the DTP-lines!
1535        * there height depends on the font of the nearest character */
1536       if (firstpar->line_top)
1537          maxasc += 2 * lyxfont::ascent('x', GetFont(bview->buffer(),
1538                                                     firstpar, 0));
1539
1540       /* and now the pagebreaks */
1541       if (firstpar->pagebreak_top)
1542          maxasc += 3 * DefaultHeight();
1543
1544       /*  this is special code for the chapter, since the label of this
1545        * layout is printed in an extra row */
1546       if (layout.labeltype == LABEL_COUNTER_CHAPTER
1547           && bview->buffer()->params.secnumdepth >= 0) {
1548               float spacing_val = 1.0;
1549               if (!row_ptr->par()->spacing.isDefault()) {
1550                       spacing_val = row_ptr->par()->spacing.getValue();
1551               } else {
1552                       spacing_val = bview->buffer()->params.spacing.getValue();
1553               }
1554
1555               labeladdon = int(lyxfont::maxDescent(labelfont) *
1556                                layout.spacing.getValue() *
1557                                spacing_val)
1558                       + int(lyxfont::maxAscent(labelfont) *
1559                             layout.spacing.getValue() *
1560                             spacing_val);
1561       }
1562
1563       /* special code for the top label */
1564       if ((layout.labeltype == LABEL_TOP_ENVIRONMENT
1565            || layout.labeltype == LABEL_BIBLIO
1566            || layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT)
1567           && row_ptr->par()->IsFirstInSequence()
1568           && !row_ptr->par()->GetLabelstring().empty()) {
1569               float spacing_val = 1.0;
1570               if (!row_ptr->par()->spacing.isDefault()) {
1571                       spacing_val = row_ptr->par()->spacing.getValue();
1572               } else {
1573                       spacing_val = bview->buffer()->params.spacing.getValue();
1574               }
1575
1576               labeladdon = int(
1577                       (lyxfont::maxAscent(labelfont) *
1578                        layout.spacing.getValue() *
1579                        spacing_val)
1580                       +(lyxfont::maxDescent(labelfont) *
1581                         layout.spacing.getValue() *
1582                         spacing_val)
1583                       + layout.topsep * DefaultHeight()
1584                       + layout.labelbottomsep *  DefaultHeight());
1585       }
1586
1587       /* and now the layout spaces, for example before and after a section,
1588        * or between the items of a itemize or enumerate environment */
1589
1590       if (!firstpar->pagebreak_top) {
1591          LyXParagraph * prev = row_ptr->par()->Previous();
1592          if (prev)
1593             prev = row_ptr->par()->DepthHook(row_ptr->par()->GetDepth());
1594          if (prev && prev->GetLayout() == firstpar->GetLayout()
1595              && prev->GetDepth() == firstpar->GetDepth()
1596              && prev->GetLabelWidthString() == firstpar->GetLabelWidthString())
1597            {
1598               layoutasc = (layout.itemsep * DefaultHeight());
1599            }
1600          else if (row_ptr->previous()) {
1601             tmptop = layout.topsep;
1602
1603             if (row_ptr->previous()->par()->GetDepth() >= row_ptr->par()->GetDepth())
1604                tmptop -= textclasslist.Style(bview->buffer()->params.textclass,
1605                                              row_ptr->previous()->par()->
1606                                              GetLayout()).bottomsep;
1607
1608             if (tmptop > 0)
1609                layoutasc = (tmptop * DefaultHeight());
1610          }
1611          else if (row_ptr->par()->line_top){
1612             tmptop = layout.topsep;
1613
1614             if (tmptop > 0)
1615                layoutasc = (tmptop * DefaultHeight());
1616          }
1617
1618          prev = row_ptr->par()->DepthHook(row_ptr->par()->GetDepth()-1);
1619          if (prev)  {
1620             maxasc += int(textclasslist.Style(bview->buffer()->params.textclass,
1621                                          prev->GetLayout()).parsep * DefaultHeight());
1622          }
1623          else {
1624                 if (firstpar->Previous()
1625                     && firstpar->Previous()->GetDepth() == 0
1626                     && firstpar->Previous()->GetLayout() != firstpar->GetLayout()) {
1627                    /* avoid parsep */
1628                 }
1629             else if (firstpar->Previous()){
1630                maxasc += int(layout.parsep * DefaultHeight());
1631             }
1632          }
1633       }
1634    }
1635
1636    /* is it a bottom line? */
1637    if (
1638 #ifndef NEW_INSETS
1639            row_ptr->par()->ParFromPos(RowLast(row_ptr) + 1) == par
1640 #else
1641            row_ptr->par() == par
1642 #endif
1643        && (!row_ptr->next() || row_ptr->next()->par() != row_ptr->par())) {
1644
1645           /* the paper margins */
1646           if (!par->next && bv_owner)
1647             maxdesc += LYX_PAPER_MARGIN;
1648
1649           /* add the vertical spaces, that the user added */
1650           if (firstpar->added_space_bottom.kind() != VSpace::NONE)
1651                   maxdesc += int(firstpar->added_space_bottom.inPixels(bview));
1652
1653           /* do not forget the DTP-lines!
1654            * there height depends on the font of the nearest character */
1655           if (firstpar->line_bottom)
1656                   maxdesc += 2 * lyxfont::ascent('x', GetFont(bview->buffer(),
1657                                                               par, par->Last() - 1));
1658
1659           /* and now the pagebreaks */
1660           if (firstpar->pagebreak_bottom)
1661             maxdesc += 3 * DefaultHeight();
1662
1663           /* and now the layout spaces, for example before and after a section,
1664            * or between the items of a itemize or enumerate environment */
1665           if (!firstpar->pagebreak_bottom && row_ptr->par()->Next()) {
1666              LyXParagraph * nextpar = row_ptr->par()->Next();
1667              LyXParagraph * comparepar = row_ptr->par();
1668              float usual = 0;
1669              float  unusual = 0;
1670
1671              if (comparepar->GetDepth() > nextpar->GetDepth()) {
1672                 usual = (textclasslist.Style(bview->buffer()->params.textclass, comparepar->GetLayout()).bottomsep * DefaultHeight());
1673                 comparepar = comparepar->DepthHook(nextpar->GetDepth());
1674                 if (comparepar->GetLayout()!= nextpar->GetLayout()
1675                     || nextpar->GetLabelWidthString() !=
1676                         comparepar->GetLabelWidthString())
1677                   unusual = (textclasslist.Style(bview->buffer()->params.textclass, comparepar->GetLayout()).bottomsep * DefaultHeight());
1678
1679                 if (unusual > usual)
1680                   layoutdesc = unusual;
1681                 else
1682                   layoutdesc = usual;
1683              }
1684              else if (comparepar->GetDepth() ==  nextpar->GetDepth()) {
1685
1686                 if (comparepar->GetLayout()!= nextpar->GetLayout()
1687                     || nextpar->GetLabelWidthString() !=
1688                         comparepar->GetLabelWidthString())
1689                   layoutdesc = int(textclasslist.Style(bview->buffer()->params.textclass, comparepar->GetLayout()).bottomsep * DefaultHeight());
1690              }
1691           }
1692        }
1693
1694    /* incalculate the layout spaces */
1695    maxasc += int(layoutasc * 2 / (2 + firstpar->GetDepth()));
1696    maxdesc += int(layoutdesc * 2 / (2 + firstpar->GetDepth()));
1697
1698 #ifndef NEW_TABULAR
1699    /* table stuff -- begin*/
1700    if (row_ptr->par()->table){
1701       maxasc += row_ptr->par()->table->
1702         AdditionalHeight(NumberOfCell(row_ptr->par(), row_ptr->pos()));
1703    }
1704    /* table stuff -- end*/
1705 #endif
1706    /* calculate the new height of the text */
1707    height -= row_ptr->height();
1708
1709    row_ptr->height(maxasc + maxdesc + labeladdon);
1710    row_ptr->baseline(maxasc + labeladdon);
1711
1712    height += row_ptr->height();
1713    float x, dummy;
1714    PrepareToPrint(bview, row_ptr, x, dummy, dummy, dummy, false);
1715    row_ptr->width(int(maxwidth + x));
1716    if (inset_owner) {
1717            Row * r = firstrow;
1718            width = max(0,workWidth(bview));
1719            while(r) {
1720                    if (r->width() > width)
1721                            width = r->width();
1722                    r = r->next();
1723            }
1724    }
1725 }
1726
1727
1728 /* Appends the implicit specified paragraph behind the specified row,
1729  * start at the implicit given position */
1730 void LyXText::AppendParagraph(BufferView * bview, Row * row) const
1731 {
1732    bool not_ready = true;
1733
1734    // The last character position of a paragraph is an invariant so we can
1735    // safely get it here. (Asger)
1736    int lastposition = row->par()->Last();
1737
1738    do {
1739       // Get the next breakpoint
1740       int z = NextBreakPoint(bview, row, workWidth(bview));
1741
1742       Row * tmprow = row;
1743
1744       // Insert the new row
1745       if (z < lastposition) {
1746          ++z;
1747          InsertRow(row, row->par(), z);
1748          row = row->next();
1749
1750          row->height(0);
1751       } else
1752          not_ready = false;
1753
1754       // Set the dimensions of the row
1755       tmprow->fill(Fill(bview, tmprow, workWidth(bview)));
1756       SetHeightOfRow(bview, tmprow);
1757
1758    } while (not_ready);
1759 }
1760
1761
1762 void LyXText::BreakAgain(BufferView * bview, Row * row) const
1763 {
1764    bool not_ready = true;
1765
1766    do  {
1767       /* get the next breakpoint */
1768         LyXParagraph::size_type z = NextBreakPoint(bview, row, workWidth(bview));
1769       Row * tmprow = row;
1770
1771       if (z < row->par()->Last() ) {
1772          if (!row->next() || (row->next() && row->next()->par() != row->par())) {
1773                  // insert a new row
1774             ++z;
1775             InsertRow(row, row->par(), z);
1776             row = row->next();
1777             row->height(0);
1778          } else  {
1779             row = row->next();
1780             ++z;
1781             if (row->pos() == z)
1782                     not_ready = false;     // the rest will not change
1783             else {
1784                row->pos(z);
1785             }
1786          }
1787       } else {
1788          /* if there are some rows too much, delete them */
1789          /* only if you broke the whole paragraph! */
1790          Row * tmprow2 = row;
1791          while (tmprow2->next() && tmprow2->next()->par() == row->par()) {
1792             tmprow2 = tmprow2->next();
1793          }
1794          while (tmprow2 != row) {
1795             tmprow2 = tmprow2->previous();
1796             RemoveRow(tmprow2->next());
1797          }
1798          not_ready = false;
1799       }
1800
1801       /* set the dimensions of the row */
1802       tmprow->fill(Fill(bview, tmprow, workWidth(bview)));
1803       SetHeightOfRow(bview, tmprow);
1804    } while (not_ready);
1805 }
1806
1807
1808 // this is just a little changed version of break again
1809 void LyXText::BreakAgainOneRow(BufferView * bview, Row * row)
1810 {
1811         // get the next breakpoint
1812         LyXParagraph::size_type z = NextBreakPoint(bview, row, workWidth(bview));
1813         Row * tmprow = row;
1814
1815         if (z < row->par()->Last() ) {
1816                 if (!row->next()
1817                     || (row->next() && row->next()->par() != row->par())) {
1818                         /* insert a new row */
1819                         ++z;
1820                         InsertRow(row, row->par(), z);
1821                         row = row->next();
1822                         row->height(0);
1823                 } else  {
1824                         row= row->next();
1825                         ++z;
1826                         if (row->pos() != z)
1827                                 row->pos(z);
1828                 }
1829         } else {
1830                 // if there are some rows too much, delete them
1831                 // only if you broke the whole paragraph!
1832                 Row * tmprow2 = row;
1833                 while (tmprow2->next()
1834                        && tmprow2->next()->par() == row->par()) {
1835                         tmprow2 = tmprow2->next();
1836                 }
1837                 while (tmprow2 != row) {
1838                         tmprow2 = tmprow2->previous();
1839                         RemoveRow(tmprow2->next());
1840                 }
1841         }
1842
1843         // set the dimensions of the row
1844         tmprow->fill(Fill(bview, tmprow, workWidth(bview)));
1845         SetHeightOfRow(bview, tmprow);
1846 }
1847
1848
1849 void LyXText::BreakParagraph(BufferView * bview, char keep_layout)
1850 {
1851    LyXLayout const & layout = textclasslist.Style(bview->buffer()->params.textclass,
1852                                                   cursor.par()->GetLayout());
1853 #ifndef NEW_TABULAR
1854    /* table stuff -- begin */
1855    if (cursor.par()->table) {
1856        // breaking of tables is only allowed at the beginning or the end */
1857        if (cursor.pos() && cursor.pos() < cursor.par()->size() &&
1858            !cursor.par()->table->ShouldBeVeryLastCell(NumberOfCell(cursor.par(), cursor.pos())))
1859                return; // no breaking of tables allowed
1860    }
1861    /* table stuff -- end */
1862 #endif
1863    // this is only allowed, if the current paragraph is not empty or caption
1864    if ((cursor.par()->Last() <= 0
1865 #ifndef NEW_INSETS
1866         && !cursor.par()->IsDummy()
1867 #endif
1868            )
1869        &&
1870        layout.labeltype!= LABEL_SENSITIVE)
1871      return;
1872
1873    SetUndo(bview->buffer(), Undo::INSERT,
1874 #ifndef NEW_INSETS
1875            cursor.par()->ParFromPos(cursor.pos())->previous,
1876            cursor.par()->ParFromPos(cursor.pos())->next
1877 #else
1878            cursor.par()->previous,
1879            cursor.par()->next
1880 #endif
1881            );
1882
1883 #ifndef NEW_TABULAR
1884    /* table stuff -- begin */
1885    if (cursor.par()->table) {
1886        int cell = NumberOfCell(cursor.par(), cursor.pos());
1887        if (cursor.par()->table->ShouldBeVeryLastCell(cell))
1888            SetCursor(bview, cursor.par(), cursor.par()->size());
1889    }
1890    /* table stuff -- end */
1891 #endif
1892    // please break always behind a space
1893    if (cursor.pos() < cursor.par()->Last()
1894        && cursor.par()->IsLineSeparator(cursor.pos()))
1895      cursor.pos(cursor.pos() + 1);
1896
1897    // break the paragraph
1898    if (keep_layout)
1899      keep_layout = 2;
1900    else
1901      keep_layout = layout.isEnvironment();
1902    cursor.par()->BreakParagraph(bview->buffer()->params, cursor.pos(),
1903                                 keep_layout);
1904 #ifndef NEW_TABULAR
1905    /* table stuff -- begin */
1906    if (cursor.par()->table){
1907      // the table should stay with the contents
1908      if (!cursor.pos()){
1909        cursor.par()->Next()->table = cursor.par()->table;
1910        cursor.par()->table = 0;
1911      }
1912    }
1913    /* table stuff -- end */
1914 #endif
1915    // well this is the caption hack since one caption is really enough
1916    if (layout.labeltype == LABEL_SENSITIVE) {
1917      if (!cursor.pos())
1918              // set to standard-layout
1919              cursor.par()->SetLayout(bview->buffer()->params, 0);
1920      else
1921              // set to standard-layout
1922              cursor.par()->Next()->SetLayout(bview->buffer()->params, 0);
1923    }
1924
1925    /* if the cursor is at the beginning of a row without prior newline,
1926     * move one row up!
1927     * This touches only the screen-update. Otherwise we would may have
1928     * an empty row on the screen */
1929    if (cursor.pos() && !cursor.row()->par()->IsNewline(cursor.row()->pos() - 1) &&
1930        cursor.row()->pos() == cursor.pos()) {
1931            CursorLeft(bview);
1932    }
1933
1934    status = LyXText::NEED_MORE_REFRESH;
1935    refresh_row = cursor.row();
1936    refresh_y = cursor.y() - cursor.row()->baseline();
1937
1938    // Do not forget the special right address boxes
1939    if (layout.margintype == MARGIN_RIGHT_ADDRESS_BOX) {
1940       while (refresh_row->previous() &&
1941              refresh_row->previous()->par() == refresh_row->par()) {
1942               refresh_row = refresh_row->previous();
1943               refresh_y -= refresh_row->height();
1944       }
1945    }
1946    RemoveParagraph(cursor.row());
1947
1948    // set the dimensions of the cursor row
1949    cursor.row()->fill(Fill(bview, cursor.row(), workWidth(bview)));
1950
1951    SetHeightOfRow(bview, cursor.row());
1952
1953    while (
1954 #ifndef NEW_TABULAR
1955            !cursor.par()->Next()->table &&
1956 #endif
1957            cursor.par()->Next()->Last()
1958           && cursor.par()->Next()->IsNewline(0))
1959            cursor.par()->Next()->Erase(0);
1960
1961    InsertParagraph(bview, cursor.par()->Next(), cursor.row());
1962
1963    UpdateCounters(bview, cursor.row()->previous());
1964
1965    /* This check is necessary. Otherwise the new empty paragraph will
1966     * be deleted automatically. And it is more friendly for the user! */
1967    if (cursor.pos())
1968            SetCursor(bview, cursor.par()->Next(), 0);
1969    else
1970            SetCursor(bview, cursor.par(), 0);
1971
1972    if (cursor.row()->next())
1973            BreakAgain(bview, cursor.row()->next());
1974
1975    need_break_row = 0;
1976 }
1977
1978
1979 #ifndef NEW_INSETS
1980 void LyXText::OpenFootnote(BufferView * bview)
1981 {
1982    LyXParagraph * endpar,* tmppar;
1983    Row * row;
1984
1985    LyXParagraph * par = cursor.par()->ParFromPos(cursor.pos());
1986
1987    /* if there is no footnote in this paragraph, just return. */
1988    if (!par->next
1989        || par->next->footnoteflag != LyXParagraph::CLOSED_FOOTNOTE)
1990      return;
1991
1992    /* ok, move the cursor right before the footnote */
1993
1994    /* just a little faster than using CursorRight() */
1995    for (cursor.pos(0);
1996         cursor.par()->ParFromPos(cursor.pos()) != par;) {
1997            cursor.pos(cursor.pos() + 1);
1998    }
1999
2000    /* now the cursor is at the beginning of the physical par */
2001    SetCursor(bview, cursor.par(),
2002              cursor.pos() + cursor.par()->ParFromPos(cursor.pos())->size());
2003
2004    /* the cursor must be exactly before the footnote */
2005    par = cursor.par()->ParFromPos(cursor.pos());
2006
2007    status = LyXText::NEED_MORE_REFRESH;
2008    refresh_row = cursor.row();
2009    refresh_y = cursor.y() - cursor.row()->baseline();
2010
2011    tmppar = cursor.par();
2012    endpar = cursor.par()->Next();
2013    row = cursor.row();
2014
2015    tmppar->OpenFootnote(cursor.pos());
2016    RemoveParagraph(row);
2017    /* set the dimensions of the cursor row */
2018    row->fill(Fill(bview, row, workWidth(bview)));
2019    SetHeightOfRow(bview, row);
2020    // CHECK See comment on top of text.C
2021    tmppar = tmppar->Next();
2022
2023    while (tmppar != endpar) {
2024       if (tmppar) {
2025          InsertParagraph(bview, tmppar, row);
2026          while (row->next() && row->next()->par() == tmppar)
2027            row = row->next();
2028          tmppar = tmppar->Next();
2029       }
2030    }
2031    SetCursor(bview, par->next, 0);
2032    sel_cursor = cursor;
2033 }
2034 #endif
2035
2036
2037 #ifndef NEW_TABULAR
2038 /* table stuff -- begin*/
2039
2040 void LyXText::TableFeatures(BufferView * bview, int feature, string const & val) const
2041 {
2042         if (!cursor.par()->table)
2043                 return; /* this should never happen */
2044
2045         int actCell = NumberOfCell(cursor.par(), cursor.pos());
2046         SetUndo(bview->buffer(), Undo::FINISH,
2047                 cursor.par()->ParFromPos(cursor.pos())->previous,
2048                 cursor.par()->ParFromPos(cursor.pos())->next);
2049
2050         switch (feature){
2051         case LyXTable::SET_PWIDTH:
2052                 cursor.par()->table->SetPWidth(actCell, val);
2053                 break;
2054         case LyXTable::SET_SPECIAL_COLUMN:
2055         case LyXTable::SET_SPECIAL_MULTI:
2056                 cursor.par()->table->SetAlignSpecial(actCell, val, feature);
2057                 break;
2058         default:
2059                 break;
2060         }
2061         RedoParagraph(bview);
2062 }
2063
2064
2065 void LyXText::TableFeatures(BufferView * bview, int feature) const
2066 {
2067         int setLines = 0;
2068         int setAlign = LYX_ALIGN_LEFT;
2069         int lineSet;
2070         bool what;
2071
2072     if (!cursor.par()->table)
2073         return; /* this should never happen */
2074
2075     int actCell = NumberOfCell(cursor.par(), cursor.pos());
2076     SetUndo(bview->buffer(), Undo::FINISH,
2077             cursor.par()->ParFromPos(cursor.pos())->previous,
2078             cursor.par()->ParFromPos(cursor.pos())->next);
2079
2080     switch (feature){
2081       case LyXTable::ALIGN_LEFT:
2082           setAlign= LYX_ALIGN_LEFT;
2083           break;
2084       case LyXTable::ALIGN_RIGHT:
2085           setAlign= LYX_ALIGN_RIGHT;
2086           break;
2087       case LyXTable::ALIGN_CENTER:
2088           setAlign= LYX_ALIGN_CENTER;
2089           break;
2090       default:
2091           break;
2092     }
2093     switch (feature){
2094       case LyXTable::APPEND_ROW: {
2095               LyXParagraph::size_type pos = cursor.pos();
2096
2097               /* move to the next row */
2098           int cell_org = actCell;
2099           int cell = cell_org;
2100
2101           // if there is a ContRow following this row I have to add
2102           // the row after the ContRow's
2103           if ((pos < cursor.par()->Last()) &&
2104               cursor.par()->table->RowHasContRow(cell_org)) {
2105               while((pos < cursor.par()->Last()) &&
2106                     !cursor.par()->table->IsContRow(cell)) {
2107                   while (pos < cursor.par()->Last() &&
2108                          !cursor.par()->IsNewline(pos))
2109                       ++pos;
2110                   if (pos < cursor.par()->Last())
2111                       ++pos;
2112                   ++cell;
2113               }
2114               while((pos < cursor.par()->Last()) &&
2115                     cursor.par()->table->IsContRow(cell)) {
2116                   while (pos < cursor.par()->Last() &&
2117                          !cursor.par()->IsNewline(pos))
2118                       ++pos;
2119                   if (pos < cursor.par()->Last())
2120                       ++pos;
2121                   ++cell;
2122               }
2123               cell_org = --cell;
2124               if (pos < cursor.par()->Last())
2125                   --pos;
2126           }
2127           while (pos < cursor.par()->Last() &&
2128                  (cell == cell_org || !cursor.par()->table->IsFirstCell(cell))){
2129               while (pos < cursor.par()->Last() && !cursor.par()->IsNewline(pos))
2130                   ++pos;
2131               if (pos < cursor.par()->Last())
2132                   ++pos;
2133               ++cell;
2134           }
2135
2136           /* insert the new cells */
2137           int number = cursor.par()->table->NumberOfCellsInRow(cell_org);
2138           Language const * lang = cursor.par()->getParLanguage(bview->buffer()->params);
2139           LyXFont font(LyXFont::ALL_INHERIT,lang);
2140           for (int i = 0; i < number; ++i) {
2141               cursor.par()->InsertChar(pos, LyXParagraph::META_NEWLINE, font);
2142           }
2143
2144           /* append the row into the table */
2145           cursor.par()->table->AppendRow(cell_org);
2146           RedoParagraph(bview);
2147           return;
2148       }
2149       case LyXTable::APPEND_CONT_ROW: {
2150               LyXParagraph::size_type pos = cursor.pos();
2151           /* move to the next row */
2152           int cell_org = actCell;
2153           int cell = cell_org;
2154
2155           // if there is already a controw but not for this cell
2156           // the AppendContRow sets only the right values but does
2157           // not actually add a row
2158           if (cursor.par()->table->RowHasContRow(cell_org) &&
2159               (cursor.par()->table->CellHasContRow(cell_org)<0)) {
2160               cursor.par()->table->AppendContRow(cell_org);
2161               RedoParagraph(bview);
2162               return;
2163           }
2164           while (pos < cursor.par()->Last() &&
2165                  (cell == cell_org
2166                   || !cursor.par()->table->IsFirstCell(cell))){
2167               while (pos < cursor.par()->Last() && !cursor.par()->IsNewline(pos))
2168                   ++pos;
2169               if (pos < cursor.par()->Last())
2170                   ++pos;
2171               ++cell;
2172           }
2173
2174           /* insert the new cells */
2175           int number = cursor.par()->table->NumberOfCellsInRow(cell_org);
2176           Language const * lang = cursor.par()->getParLanguage(bview->buffer()->params);
2177           LyXFont font(LyXFont::ALL_INHERIT,lang);
2178           for (int i = 0; i < number; ++i) {
2179               cursor.par()->InsertChar(pos, LyXParagraph::META_NEWLINE, font);
2180           }
2181
2182           /* append the row into the table */
2183           cursor.par()->table->AppendContRow(cell_org);
2184           RedoParagraph(bview);
2185           return;
2186       }
2187       case LyXTable::APPEND_COLUMN: {
2188               LyXParagraph::size_type pos = 0;
2189           int cell_org = actCell;
2190           int cell = 0;
2191           Language const * lang = cursor.par()->getParLanguage(bview->buffer()->params);
2192           LyXFont font(LyXFont::ALL_INHERIT,lang);
2193           do{
2194               if (pos && (cursor.par()->IsNewline(pos-1))){
2195                   if (cursor.par()->table->AppendCellAfterCell(cell_org, cell)) {
2196                       cursor.par()->InsertChar(pos,
2197                                                LyXParagraph::META_NEWLINE,
2198                                                font);
2199                       if (pos <= cursor.pos())
2200                           cursor.pos(cursor.pos() + 1);
2201                       ++pos;
2202                   }
2203                   ++cell;
2204               }
2205               ++pos;
2206           } while (pos <= cursor.par()->Last());
2207           /* remember that the very last cell doesn't end with a newline.
2208              This saves one byte memory per table ;-) */
2209           if (cursor.par()->table->AppendCellAfterCell(cell_org, cell)) {
2210                   LyXParagraph::size_type last = cursor.par()->Last();
2211                   cursor.par()->InsertChar(last,
2212                                            LyXParagraph::META_NEWLINE, font);
2213           }
2214
2215           /* append the column into the table */
2216           cursor.par()->table->AppendColumn(cell_org);
2217
2218           RedoParagraph(bview);
2219           return;
2220       }
2221       case LyXTable::DELETE_ROW:
2222           if (bview->the_locking_inset)
2223               bview->unlockInset(bview->the_locking_inset);
2224           RemoveTableRow(cursor);
2225           RedoParagraph(bview);
2226           return;
2227
2228       case LyXTable::DELETE_COLUMN: {
2229               LyXParagraph::size_type pos = 0;
2230           int cell_org = actCell;
2231           int cell = 0;
2232           if (bview->the_locking_inset)
2233               bview->unlockInset(bview->the_locking_inset);
2234           do {
2235               if (!pos || (cursor.par()->IsNewline(pos-1))){
2236                   if (cursor.par()->table->DeleteCellIfColumnIsDeleted(cell, cell_org)){
2237                       // delete one cell
2238                       while (pos < cursor.par()->Last() && !cursor.par()->IsNewline(pos))
2239                           cursor.par()->Erase(pos);
2240                       if (pos < cursor.par()->Last())
2241                           cursor.par()->Erase(pos);
2242                       else
2243                           cursor.par()->Erase(pos - 1); // the missing newline at the end of a table
2244                       --pos; // because of pos++ below
2245                   }
2246                   ++cell;
2247               }
2248               ++pos;
2249           } while (pos <= cursor.par()->Last());
2250
2251           /* delete the column from the table */
2252           cursor.par()->table->DeleteColumn(cell_org);
2253
2254           /* set the cursor to the beginning of the table, where else? */
2255           cursor.pos(0);
2256           RedoParagraph(bview);
2257           return;
2258       }
2259       case LyXTable::TOGGLE_LINE_TOP:
2260           lineSet = !cursor.par()->table->TopLine(actCell);
2261           if (!selection){
2262               cursor.par()->table->SetTopLine(actCell, lineSet);
2263           } else {
2264                   LyXParagraph::size_type i;
2265                   int n = -1, m = -2;
2266               for (i = sel_start_cursor.pos(); i <= sel_end_cursor.pos(); ++i){
2267                   if ((n = NumberOfCell(sel_start_cursor.par(), i)) != m) {
2268                       cursor.par()->table->SetTopLine(n, lineSet);
2269                       m = n;
2270                   }
2271               }
2272           }
2273           RedoParagraph(bview);
2274           return;
2275
2276       case LyXTable::TOGGLE_LINE_BOTTOM:
2277           lineSet = !cursor.par()->table->BottomLine(actCell);
2278           if (!selection){
2279               cursor.par()->table->SetBottomLine(actCell, lineSet);
2280           } else {
2281                   LyXParagraph::size_type i;
2282                   int n = -1, m = -2;
2283               for (i = sel_start_cursor.pos(); i <= sel_end_cursor.pos(); ++i) {
2284                   if ((n = NumberOfCell(sel_start_cursor.par(), i)) != m) {
2285                       cursor.par()->table->SetBottomLine(n, lineSet);
2286                       m = n;
2287                   }
2288               }
2289           }
2290           RedoParagraph(bview);
2291           return;
2292
2293       case LyXTable::TOGGLE_LINE_LEFT:
2294           lineSet = !cursor.par()->table->LeftLine(actCell);
2295           if (!selection){
2296               cursor.par()->table->SetLeftLine(actCell, lineSet);
2297           } else {
2298                   LyXParagraph::size_type i;
2299                   int n = -1, m = -2;
2300               for (i = sel_start_cursor.pos(); i <= sel_end_cursor.pos(); ++i){
2301                   if ((n= NumberOfCell(sel_start_cursor.par(), i)) != m) {
2302                       cursor.par()->table->SetLeftLine(n, lineSet);
2303                       m = n;
2304                   }
2305               }
2306           }
2307           RedoParagraph(bview);
2308           return;
2309
2310       case LyXTable::TOGGLE_LINE_RIGHT:
2311           lineSet = !cursor.par()->table->RightLine(actCell);
2312           if (!selection){
2313               cursor.par()->table->SetRightLine(actCell, lineSet);
2314           } else {
2315                   int n = -1, m = -2;
2316                   LyXParagraph::size_type i = sel_start_cursor.pos();
2317               for (; i <= sel_end_cursor.pos(); ++i) {
2318                   if ((n= NumberOfCell(sel_start_cursor.par(), i)) != m) {
2319                       cursor.par()->table->SetRightLine(n, lineSet);
2320                       m = n;
2321                   }
2322               }
2323           }
2324           RedoParagraph(bview);
2325           return;
2326
2327       case LyXTable::ALIGN_LEFT:
2328       case LyXTable::ALIGN_RIGHT:
2329       case LyXTable::ALIGN_CENTER:
2330           if (!selection){
2331               cursor.par()->table->SetAlignment(actCell, setAlign);
2332           } else {
2333               int n = -1, m = -2;
2334               LyXParagraph::size_type i = sel_start_cursor.pos();
2335               for (; i <= sel_end_cursor.pos(); ++i) {
2336                   if ((n= NumberOfCell(sel_start_cursor.par(), i)) != m) {
2337                       cursor.par()->table->SetAlignment(n, setAlign);
2338                       m = n;
2339                   }
2340               }
2341           }
2342           RedoParagraph(bview);
2343           return;
2344
2345       case LyXTable::DELETE_TABLE:
2346           SetCursorIntern(bview, cursor.par(), 0);
2347           delete cursor.par()->table;
2348           cursor.par()->table = 0;
2349           // temporary: Should put table in simple_cut_buffer (with before and after
2350           // dummy-paragraph !!
2351           // not necessar anymore with UNDO :)
2352           for (LyXParagraph::size_type i =
2353                        cursor.par()->size() - 1; i >= 0; --i)
2354               cursor.par()->Erase(i);
2355           RedoParagraph(bview);
2356           return;
2357
2358       case LyXTable::MULTICOLUMN: {
2359           int number = 0;
2360           // check wether we are completly in a multicol
2361           int multicol = cursor.par()->table->IsMultiColumn(actCell);
2362           if (multicol && selection && sel_start_cursor.row() == sel_end_cursor.row()) {
2363               multicol = NumberOfCell(sel_start_cursor.par(), sel_start_cursor.pos())
2364                   == NumberOfCell(sel_end_cursor.par(), sel_end_cursor.pos());
2365           }
2366
2367           if (multicol){
2368               int newlines = cursor.par()->table->UnsetMultiColumn(actCell);
2369               LyXParagraph::size_type pos = cursor.pos();
2370               while (pos < cursor.par()->Last() && !cursor.par()->IsNewline(pos))
2371                   ++pos;
2372               for (; newlines; --newlines)
2373                   cursor.par()->InsertChar(pos, LyXParagraph::META_NEWLINE);
2374               RedoParagraph(bview);
2375               return;
2376           }
2377           else {
2378               // selection must be in one row (or no selection)
2379               if (!selection){
2380                   cursor.par()->table->SetMultiColumn(NumberOfCell(cursor.par(),
2381                                                                  cursor.pos()),
2382                                                     1);
2383                   RedoParagraph(bview);
2384                   return;
2385               }
2386               else {
2387                   if (sel_start_cursor.row() == sel_end_cursor.row()){
2388                       LyXParagraph::size_type i;
2389                       number = 1;
2390                       for (i = sel_start_cursor.pos();
2391                            i < sel_end_cursor.pos(); ++i){
2392                           if (sel_start_cursor.par()->IsNewline(i)){
2393                               sel_start_cursor.par()->Erase(i);
2394                               // check for double-blanks
2395                               if ((i && !sel_start_cursor.par()->IsLineSeparator(i-1))
2396                                   &&
2397                                   (i < sel_start_cursor.par()->Last()
2398                                    && !sel_start_cursor.par()->IsLineSeparator(i)))
2399                                   sel_start_cursor.par()->InsertChar(i, ' ');
2400                               else {
2401                                   sel_end_cursor.pos(sel_end_cursor.pos() - 1);
2402                                   --i;
2403                               }
2404                               ++number;
2405                           }
2406                       }
2407                       cursor.par()->table->
2408                           SetMultiColumn(NumberOfCell(sel_start_cursor.par(),
2409                                                       sel_start_cursor.pos()),
2410                                          number);
2411                       cursor.pos(sel_start_cursor.pos());
2412                       RedoParagraph(bview);
2413                       return;
2414                   }
2415                   else {
2416                       WriteAlert(_("Impossible Operation!"),
2417                                  _("Multicolumns can only be horizontally."),
2418                                  _("Sorry."));
2419                   }
2420               }
2421           }
2422           break;
2423       }
2424       case LyXTable::SET_ALL_LINES:
2425           setLines = 1;
2426       case LyXTable::UNSET_ALL_LINES:
2427           if (!selection){
2428               cursor.par()->table->SetAllLines(NumberOfCell(cursor.par(),
2429                                                           cursor.pos()),
2430                                              setLines);
2431           } else {
2432                   LyXParagraph::size_type i;
2433                   int n = -1, m = -2;
2434               for (i = sel_start_cursor.pos(); i <= sel_end_cursor.pos(); ++i) {
2435                   if ((n= NumberOfCell(sel_start_cursor.par(), i)) != m) {
2436                       cursor.par()->table->SetAllLines(n, setLines);
2437                       m = n;
2438                   }
2439               }
2440           }
2441           RedoParagraph(bview);
2442           return;
2443       case LyXTable::SET_LONGTABLE:
2444           cursor.par()->table->SetLongTable(true);
2445           return;
2446       case LyXTable::UNSET_LONGTABLE:
2447           cursor.par()->table->SetLongTable(false);
2448           return;
2449       case LyXTable::SET_ROTATE_TABLE:
2450           cursor.par()->table->SetRotateTable(true);
2451           return;
2452       case LyXTable::UNSET_ROTATE_TABLE:
2453           cursor.par()->table->SetRotateTable(false);
2454           return;
2455       case LyXTable::SET_ROTATE_CELL:
2456           if (!selection){
2457               cursor.par()->table->SetRotateCell(actCell, true);
2458           } else {
2459                   LyXParagraph::size_type i;
2460                   int n = -1, m = -2;
2461               for (i = sel_start_cursor.pos(); i <= sel_end_cursor.pos(); ++i){
2462                   if ((n = NumberOfCell(sel_start_cursor.par(), i)) != m) {
2463                       cursor.par()->table->SetRotateCell(n, true);
2464                       m = n;
2465                   }
2466               }
2467           }
2468           return;
2469       case LyXTable::UNSET_ROTATE_CELL:
2470           if (!selection){
2471               cursor.par()->table->SetRotateCell(actCell, false);
2472           } else {
2473                   int n = -1, m = -2;
2474                   LyXParagraph::size_type i = sel_start_cursor.pos();
2475               for (; i <= sel_end_cursor.pos(); ++i) {
2476                   if ((n= NumberOfCell(sel_start_cursor.par(), i)) != m) {
2477                       cursor.par()->table->SetRotateCell(n, false);
2478                       m = n;
2479                   }
2480               }
2481           }
2482           return;
2483       case LyXTable::SET_LINEBREAKS:
2484           what = !cursor.par()->table->Linebreaks(cursor.par()->table->FirstVirtualCell(actCell));
2485           if (!selection){
2486               cursor.par()->table->SetLinebreaks(actCell, what);
2487           } else {
2488                   LyXParagraph::size_type i;
2489                   int n = -1, m = -2;
2490               for (i = sel_start_cursor.pos(); i <= sel_end_cursor.pos(); ++i) {
2491                   if ((n = NumberOfCell(sel_start_cursor.par(), i)) != m) {
2492                       cursor.par()->table->SetLinebreaks(n, what);
2493                       m = n;
2494                   }
2495               }
2496           }
2497           return;
2498       case LyXTable::SET_LTFIRSTHEAD:
2499           cursor.par()->table->SetLTHead(actCell, true);
2500           return;
2501       case LyXTable::SET_LTHEAD:
2502           cursor.par()->table->SetLTHead(actCell, false);
2503           return;
2504       case LyXTable::SET_LTFOOT:
2505           cursor.par()->table->SetLTFoot(actCell, false);
2506           return;
2507       case LyXTable::SET_LTLASTFOOT:
2508           cursor.par()->table->SetLTFoot(actCell, true);
2509           return;
2510       case LyXTable::SET_LTNEWPAGE:
2511           what = !cursor.par()->table->LTNewPage(actCell);
2512           cursor.par()->table->SetLTNewPage(actCell, what);
2513           return;
2514     }
2515 }
2516
2517
2518 void LyXText::InsertCharInTable(BufferView * bview, char c)
2519 {
2520         Row * row = 0;
2521         Row * tmprow = 0;
2522         long y;
2523         bool jumped_over_space;
2524
2525         /* first check, if there will be two blanks together or a blank at
2526          * the beginning of a paragraph.
2527          * I decided to handle blanks like normal characters, the main
2528          * difference are the special checks when calculating the row.fill
2529          * (blank does not count at the end of a row) and the check here */
2530
2531         LyXFont realtmpfont = real_current_font;
2532         LyXFont rawtmpfont = current_font; /* store the current font.
2533                                             * This is because of the use
2534                                             * of cursor movements. The moving
2535                                             * cursor would refresh the
2536                                             * current font */
2537
2538         // Get the font that is used to calculate the baselineskip
2539         LyXParagraph::size_type const lastpos =
2540                 cursor.par()->Last();
2541         LyXFont rawparfont = cursor.par()->GetFontSettings(bview->buffer()->params,
2542                                                            lastpos - 1);
2543
2544         jumped_over_space = false;
2545         if (IsLineSeparatorChar(c)) {
2546                 if ((cursor.pos() > 0 &&
2547                      cursor.par()->IsLineSeparator(cursor.pos() - 1))
2548                     || (cursor.pos() > 0 && cursor.par()->IsNewline(cursor.pos() - 1))
2549                     || (cursor.pos() == 0
2550 #ifndef NEW_INSETS
2551                         && !(cursor.par()->Previous()
2552                           && cursor.par()->Previous()->footnoteflag
2553                           == LyXParagraph::OPEN_FOOTNOTE)
2554 #endif
2555                             ))
2556                         return;
2557         } else if (IsNewlineChar(c)) {
2558             if (!IsEmptyTableCell()) {
2559                 TableFeatures(bview, LyXTable::APPEND_CONT_ROW);
2560                 CursorDown(bview);
2561             }
2562           return;
2563         }
2564
2565         row = cursor.row();
2566         y = cursor.y() - row->baseline();
2567         if (c != LyXParagraph::META_INSET)      /* in this case LyXText::InsertInset
2568                                          * already inserted the character */
2569                 cursor.par()->InsertChar(cursor.pos(), c);
2570         SetCharFont(bview->buffer(), cursor.par(), cursor.pos(), rawtmpfont);
2571
2572         if (!jumped_over_space) {
2573                 /* refresh the positions */
2574                 tmprow = row;
2575                 while (tmprow->next() && tmprow->next()->par() == row->par()) {
2576                         tmprow = tmprow->next();
2577                         tmprow->pos(tmprow->pos() + 1);
2578                 }
2579         }
2580
2581         cursor.pos(cursor.pos() + 1);
2582
2583         CheckParagraphInTable(bview, cursor.par(), cursor.pos());
2584
2585         current_font = rawtmpfont;
2586         real_current_font = realtmpfont;
2587
2588         /* check, whether the last character's font has changed. */
2589         if (cursor.pos() && cursor.pos() == cursor.par()->Last()
2590             && rawparfont != rawtmpfont)
2591                 RedoHeightOfParagraph(bview, cursor);
2592 }
2593
2594
2595 void LyXText::CheckParagraphInTable(BufferView * bview, LyXParagraph * par,
2596                                     LyXParagraph::size_type pos)
2597 {
2598
2599         if (par->GetChar(pos) == LyXParagraph::META_INSET &&
2600             par->GetInset(pos) && par->GetInset(pos)->display()){
2601           par->GetInset(pos)->display(false);
2602         }
2603
2604         long y;
2605         Row * row = GetRow(par, pos, y);
2606
2607         int tmpheight = row->height();
2608         SetHeightOfRow(bview, row);
2609
2610         LyXParagraph::size_type tmp_pos = pos;
2611         /* update the table information */
2612         while (tmp_pos && !par->IsNewline(tmp_pos - 1))
2613                 --tmp_pos;
2614         if (par->table->SetWidthOfCell(NumberOfCell(par, pos),
2615                                        WidthOfCell(bview, par, tmp_pos))) {
2616                 LyXCursor tmpcursor = cursor;
2617                 SetCursorIntern(bview, par, pos, false);
2618                 /* make a complete redraw */
2619                 RedoDrawingOfParagraph(bview, cursor);
2620                 cursor = tmpcursor;
2621         }
2622         else {
2623                 /* redraw only the row */
2624                 LyXCursor tmpcursor = cursor;
2625                 SetCursorIntern(bview, par, pos);
2626                 //CHECK See comment on top of text.C
2627                 refresh_y = y;
2628                 refresh_x = cursor.x();
2629                 refresh_row = row;
2630                 refresh_pos = cursor.pos();
2631                 cursor = tmpcursor;
2632
2633                 if (tmpheight == row->height())
2634                         status = LyXText::NEED_VERY_LITTLE_REFRESH;
2635                 else
2636                         status = LyXText::NEED_MORE_REFRESH;
2637         }
2638         SetCursorIntern(bview, cursor.par(), cursor.pos(), false,
2639                         cursor.boundary());
2640 }
2641
2642
2643 void LyXText::BackspaceInTable(BufferView * bview)
2644 {
2645         Row * tmprow, * row;
2646         long y;
2647
2648         LyXFont rawtmpfont = current_font;
2649         LyXFont realtmpfont = real_current_font;
2650
2651         // Get the font that is used to calculate the baselineskip
2652         int const lastpos = cursor.par()->Last();
2653         LyXFont rawparfont = cursor.par()->GetFontSettings(bview->buffer()->params,
2654                                                            lastpos - 1);
2655
2656         if (cursor.pos() == 0) {
2657                 /* no pasting of table paragraphs */
2658
2659                 CursorLeft(bview);
2660         } else {
2661                 /* this is the code for a normal backspace, not pasting
2662                  * any paragraphs */
2663                 SetUndo(bview->buffer(), Undo::DELETE,
2664                         cursor.par()->ParFromPos(cursor.pos())->previous,
2665                         cursor.par()->ParFromPos(cursor.pos())->next);
2666
2667                 CursorLeftIntern(bview);
2668
2669                 /* some insets are undeletable here */
2670                 if (cursor.par()->GetChar(cursor.pos()) == LyXParagraph::META_INSET) {
2671                         if (!cursor.par()->GetInset(cursor.pos())->Deletable())
2672                                 return;
2673                 }
2674
2675                 row = cursor.row();
2676                 y = cursor.y() - row->baseline();
2677
2678                 /* some special code when deleting a newline. */
2679                 if (cursor.par()->IsNewline(cursor.pos())) {
2680                         /* nothing :-) */
2681                         return;
2682                 } else {
2683                         cursor.par()->Erase(cursor.pos());
2684
2685                         /* refresh the positions */
2686                         tmprow = row;
2687                         while (tmprow->next()
2688                                && tmprow->next()->par() == row->par()) {
2689                                 tmprow = tmprow->next();
2690                                 tmprow->pos(tmprow->pos() - 1);
2691                         }
2692                 }
2693
2694                 CheckParagraphInTable(bview, cursor.par(), cursor.pos());
2695
2696                 /* check, wether the last characters font has changed. */
2697                 if (cursor.pos() && cursor.pos() == cursor.par()->Last()
2698                     && rawparfont != rawtmpfont)
2699                         RedoHeightOfParagraph(bview, cursor);
2700
2701                 /* restore the current font
2702                  * That is what a user expects! */
2703                 current_font = rawtmpfont;
2704                 real_current_font = realtmpfont;
2705         }
2706         SetCursorIntern(bview, cursor.par(), cursor.pos(), true,
2707                         cursor.boundary());
2708         if (IsBoundary(bview->buffer(), cursor.par(), cursor.pos()) != cursor.boundary())
2709                 SetCursor(bview, cursor.par(), cursor.pos(), false, !cursor.boundary());
2710 }
2711
2712 /* table stuff -- end*/
2713 #endif
2714
2715
2716 // Just a macro to make some thing easier.
2717 void LyXText::RedoParagraph(BufferView * bview) const
2718 {
2719         ClearSelection();
2720         RedoParagraphs(bview, cursor, cursor.par()->Next());
2721         SetCursorIntern(bview, cursor.par(), cursor.pos());
2722 }
2723
2724
2725 /* insert a character, moves all the following breaks in the
2726  * same Paragraph one to the right and make a rebreak */
2727 void LyXText::InsertChar(BufferView * bview, char c)
2728 {
2729         SetUndo(bview->buffer(), Undo::INSERT,
2730 #ifndef NEW_INSETS
2731                 cursor.par()->ParFromPos(cursor.pos())->previous,
2732                 cursor.par()->ParFromPos(cursor.pos())->next
2733 #else
2734                 cursor.par()->previous,
2735                 cursor.par()->next
2736 #endif
2737                 );
2738
2739         // When the free-spacing option is set for the current layout,
2740         // disable the double-space checking
2741
2742         bool freeSpacing =
2743                 textclasslist.Style(bview->buffer()->params.textclass,
2744                                cursor.row()->par()->GetLayout()).free_spacing;
2745
2746 #ifndef NEW_TABULAR
2747         /* table stuff -- begin*/
2748         if (cursor.par()->table) {
2749                 InsertCharInTable(bview, c);
2750                 charInserted();
2751                 return;
2752         }
2753         /* table stuff -- end*/
2754 #endif
2755         /* First check, if there will be two blanks together or a blank at
2756           the beginning of a paragraph.
2757           I decided to handle blanks like normal characters, the main
2758           difference are the special checks when calculating the row.fill
2759           (blank does not count at the end of a row) and the check here */
2760
2761         // The bug is triggered when we type in a description environment:
2762         // The current_font is not changed when we go from label to main text
2763         // and it should (along with realtmpfont) when we type the space.
2764         // CHECK There is a bug here! (Asger)
2765
2766         LyXFont realtmpfont = real_current_font;
2767         LyXFont rawtmpfont = current_font;  /* store the current font.
2768                                      * This is because of the use
2769                                      * of cursor movements. The moving
2770                                      * cursor would refresh the
2771                                      * current font */
2772
2773         // Get the font that is used to calculate the baselineskip
2774         LyXParagraph::size_type lastpos = cursor.par()->Last();
2775         LyXFont rawparfont = cursor.par()->GetFontSettings(bview->buffer()->params,
2776                                                            lastpos - 1);
2777
2778         bool jumped_over_space = false;
2779
2780         if (!freeSpacing && IsLineSeparatorChar(c)) {
2781                 if ((cursor.pos() > 0
2782                      && cursor.par()->IsLineSeparator(cursor.pos() - 1))
2783                     || (cursor.pos() > 0
2784                         && cursor.par()->IsNewline(cursor.pos() - 1))
2785                     || (cursor.pos() == 0
2786 #ifndef NEW_INSETS
2787                         && !(cursor.par()->Previous()
2788                              && cursor.par()->Previous()->footnoteflag
2789                              == LyXParagraph::OPEN_FOOTNOTE)
2790 #endif
2791                             )) {
2792                         if (cursor.pos() == 0 )
2793                                 bview->owner()->getMiniBuffer()->Set(_("You cannot insert a space at the beginning of a paragraph.  Please read the Tutorial."));
2794                         else
2795                                 bview->owner()->getMiniBuffer()->Set(_("You cannot type two spaces this way.  Please read the Tutorial."));
2796                         charInserted();
2797                         return;
2798                 }
2799         } else if (IsNewlineChar(c)) {
2800 #ifndef NEW_INSETS
2801                 if (cursor.par()->FirstPhysicalPar() == cursor.par()
2802 #else
2803                 if (cursor.par() == cursor.par()
2804 #endif
2805                     && cursor.pos() <= BeginningOfMainBody(bview->buffer(), cursor.par())) {
2806                         charInserted();
2807                         return;
2808                 }
2809                 /* No newline at first position
2810                  * of a paragraph or behind labels.
2811                  * TeX does not allow that. */
2812
2813                 if (cursor.pos() < cursor.par()->Last() &&
2814                     cursor.par()->IsLineSeparator(cursor.pos()))
2815                         // newline always after a blank!
2816                         CursorRightIntern(bview);
2817                 cursor.row()->fill(-1);        // to force a new break
2818         }
2819
2820         // the display inset stuff
2821         if (cursor.row()->par()->GetChar(cursor.row()->pos()) == LyXParagraph::META_INSET
2822             && cursor.row()->par()->GetInset(cursor.row()->pos())
2823             && (cursor.row()->par()->GetInset(cursor.row()->pos())->display() ||
2824                 cursor.row()->par()->GetInset(cursor.row()->pos())->needFullRow()))
2825                 cursor.row()->fill(-1); // to force a new break
2826
2827         // get the cursor row fist
2828         Row * row = cursor.row();
2829         long y = cursor.y() - row->baseline();
2830         if (c != LyXParagraph::META_INSET) /* Here case LyXText::InsertInset
2831                                             * already insertet the character */
2832                 cursor.par()->InsertChar(cursor.pos(), c);
2833         SetCharFont(bview->buffer(), cursor.par(), cursor.pos(), rawtmpfont);
2834
2835         if (!jumped_over_space) {
2836                 // refresh the positions
2837                 Row * tmprow = row;
2838                 while (tmprow->next() && tmprow->next()->par() == row->par()) {
2839                         tmprow = tmprow->next();
2840                         tmprow->pos(tmprow->pos() + 1);
2841                 }
2842         }
2843
2844         // Is there a break one row above
2845         if ((cursor.par()->IsLineSeparator(cursor.pos())
2846              || cursor.par()->IsNewline(cursor.pos())
2847              || cursor.row()->fill() == -1)
2848             && row->previous() && row->previous()->par() == row->par()) {
2849                 LyXParagraph::size_type z = NextBreakPoint(bview,
2850                                                            row->previous(),
2851                                                            workWidth(bview));
2852                 if ( z >= row->pos()) {
2853                         row->pos(z + 1);
2854
2855                         // set the dimensions of the row above
2856                         row->previous()->fill(Fill(bview,
2857                                                    row->previous(),
2858                                                    workWidth(bview)));
2859
2860                         SetHeightOfRow(bview, row->previous());
2861
2862                         y -= row->previous()->height();
2863                         refresh_y = y;
2864                         refresh_row = row->previous();
2865                         status = LyXText::NEED_MORE_REFRESH;
2866
2867                         BreakAgainOneRow(bview, row);
2868
2869                         current_font = rawtmpfont;
2870                         real_current_font = realtmpfont;
2871                         SetCursor(bview, cursor.par(), cursor.pos() + 1,
2872                                   false, cursor.boundary());
2873                         // cursor MUST be in row now.
2874
2875                         if (row->next() && row->next()->par() == row->par())
2876                                 need_break_row = row->next();
2877                         else
2878                                 need_break_row = 0;
2879
2880                         // check, wether the last characters font has changed.
2881                         if (cursor.pos() && cursor.pos() == cursor.par()->Last()
2882                             && rawparfont != rawtmpfont)
2883                                 RedoHeightOfParagraph(bview, cursor);
2884
2885                         charInserted();
2886                         return;
2887                 }
2888         }
2889
2890         // recalculate the fill of the row
2891         if (row->fill() >= 0)  /* needed because a newline
2892                               * will set fill to -1. Otherwise
2893                               * we would not get a rebreak! */
2894                 row->fill(Fill(bview, row, workWidth(bview)));
2895         if (row->fill() < 0 ) {
2896                 refresh_y = y;
2897                 refresh_row = row;
2898                 refresh_x = cursor.x();
2899                 refresh_pos = cursor.pos();
2900                 status = LyXText::NEED_MORE_REFRESH;
2901                 BreakAgainOneRow(bview, row);
2902                 // will the cursor be in another row now?
2903                 if (RowLast(row) <= cursor.pos() + 1 && row->next()) {
2904                         if (row->next() && row->next()->par() == row->par())
2905                                 // this should always be true
2906                                 row = row->next();
2907                         BreakAgainOneRow(bview, row);
2908                 }
2909                 current_font = rawtmpfont;
2910                 real_current_font = realtmpfont;
2911
2912                 SetCursor(bview, cursor.par(), cursor.pos() + 1, false,
2913                           cursor.boundary());
2914                 if (row->next() && row->next()->par() == row->par())
2915                         need_break_row = row->next();
2916                 else
2917                         need_break_row = 0;
2918         } else {
2919                 refresh_y = y;
2920                 refresh_x = cursor.x();
2921                 refresh_row = row;
2922                 refresh_pos = cursor.pos();
2923
2924                 int tmpheight = row->height();
2925                 SetHeightOfRow(bview, row);
2926                 if (tmpheight == row->height())
2927                         status = LyXText::NEED_VERY_LITTLE_REFRESH;
2928                 else
2929                         status = LyXText::NEED_MORE_REFRESH;
2930
2931                 current_font = rawtmpfont;
2932                 real_current_font = realtmpfont;
2933                 SetCursor(bview, cursor.par(), cursor.pos() + 1, false,
2934                           cursor.boundary());
2935         }
2936
2937         // check, wether the last characters font has changed.
2938         if (cursor.pos() && cursor.pos() == cursor.par()->Last()
2939             && rawparfont != rawtmpfont) {
2940                 RedoHeightOfParagraph(bview, cursor);
2941         } else {
2942                 // now the special right address boxes
2943                 if (textclasslist.Style(bview->buffer()->params.textclass,
2944                                    cursor.par()->GetLayout()).margintype
2945                     == MARGIN_RIGHT_ADDRESS_BOX) {
2946                         RedoDrawingOfParagraph(bview, cursor);
2947                 }
2948         }
2949
2950         charInserted();
2951 }
2952
2953
2954 void LyXText::charInserted()
2955 {
2956         // Here we could call FinishUndo for every 20 characters inserted.
2957         // This is from my experience how emacs does it.
2958         static unsigned int counter = 0;
2959         if (counter < 20) {
2960                 ++counter;
2961         } else {
2962                 FinishUndo();
2963                 counter = 0;
2964         }
2965 }
2966
2967
2968 void LyXText::PrepareToPrint(BufferView * bview,
2969                              Row * row, float & x,
2970                              float & fill_separator,
2971                              float & fill_hfill,
2972                              float & fill_label_hfill,
2973                              bool bidi) const
2974 {
2975         float nlh, ns;
2976
2977         float w = row->fill();
2978         fill_hfill = 0;
2979         fill_label_hfill = 0;
2980         fill_separator = 0;
2981         fill_label_hfill = 0;
2982
2983         bool is_rtl = row->par()->isRightToLeftPar(bview->buffer()->params);
2984 #ifndef NEW_INSETS
2985
2986         if (is_rtl) {
2987                 x = RightMargin(bview->buffer(), row);
2988                 if (row->par()->footnoteflag == LyXParagraph::OPEN_FOOTNOTE) {
2989                         LyXFont font(LyXFont::ALL_SANE);
2990                         font.setSize(LyXFont::SIZE_SMALL);
2991                         x += lyxfont::width("Mwide-figM", font);
2992                 }
2993         } else
2994 #endif
2995                 if (workWidth(bview) > 0)
2996                 x = LeftMargin(bview, row);
2997         else
2998                 x = 0;
2999
3000         // is there a manual margin with a manual label
3001         if (textclasslist.Style(bview->buffer()->params.textclass,
3002                            row->par()->GetLayout()).margintype == MARGIN_MANUAL
3003             && textclasslist.Style(bview->buffer()->params.textclass,
3004                               row->par()->GetLayout()).labeltype == LABEL_MANUAL) {
3005
3006                 /* one more since labels are left aligned */
3007                 nlh = NumberOfLabelHfills(bview->buffer(), row) + 1;
3008                 if (nlh && !row->par()->GetLabelWidthString().empty()) {
3009                         fill_label_hfill = LabelFill(bview, row) / nlh;
3010                 }
3011         }
3012
3013         // are there any hfills in the row?
3014         float nh = NumberOfHfills(bview->buffer(), row);
3015
3016 #ifndef NEW_TABULAR
3017 /* table stuff -- begin*/
3018         if (row->par()->table) {
3019            w = workWidth(bview) - row->par()->table->WidthOfTable()
3020            - x - RightMargin(bview->buffer(), row);
3021            nh = 0; /* ignore hfills in tables */
3022         }
3023 /* table stuff -- end*/
3024 #endif
3025         if (nh)
3026           fill_hfill = w /nh;
3027         else  {
3028                 // is it block, flushleft or flushright?
3029                 // set x how you need it
3030         int align;
3031 #ifndef NEW_INSETS
3032         if (row->par()->FirstPhysicalPar()->align == LYX_ALIGN_LAYOUT)
3033           align = textclasslist.Style(bview->buffer()->params.textclass, row->par()->GetLayout()).align;
3034         else
3035           align = row->par()->FirstPhysicalPar()->align;
3036 #else
3037         if (row->par()->align == LYX_ALIGN_LAYOUT)
3038           align = textclasslist.Style(bview->buffer()->params.textclass, row->par()->GetLayout()).align;
3039         else
3040           align = row->par()->align;
3041 #endif
3042
3043         // center displayed insets
3044         Inset * inset;
3045            if (row->par()->GetChar(row->pos()) == LyXParagraph::META_INSET
3046                && (inset=row->par()->GetInset(row->pos()))
3047                && (inset->display())) // || (inset->scroll() < 0)))
3048              align = LYX_ALIGN_CENTER;
3049
3050            switch (align) {
3051             case LYX_ALIGN_BLOCK:
3052               ns = NumberOfSeparators(bview->buffer(), row);
3053               if (ns && row->next() && row->next()->par() == row->par() &&
3054                   !(row->next()->par()->IsNewline(row->next()->pos() - 1))
3055                   && !(row->next()->par()->GetChar(row->next()->pos()) == LyXParagraph::META_INSET
3056                        && row->next()->par()->GetInset(row->next()->pos())
3057                        && row->next()->par()->GetInset(row->next()->pos())->display())
3058                   )
3059                 fill_separator = w / ns;
3060               else if (is_rtl)
3061                 x += w;
3062               break;
3063             case LYX_ALIGN_RIGHT:
3064               x += w;
3065               break;
3066             case LYX_ALIGN_CENTER:
3067               x += w / 2;
3068               break;
3069            }
3070         }
3071         if (!bidi)
3072                 return;
3073
3074         ComputeBidiTables(bview->buffer(), row);
3075         if (is_rtl) {
3076                 LyXParagraph::size_type main_body =
3077                         BeginningOfMainBody(bview->buffer(), row->par());
3078                 LyXParagraph::size_type last = RowLast(row);
3079
3080                 if (main_body > 0 &&
3081                     (main_body-1 > last ||
3082                      !row->par()->IsLineSeparator(main_body-1))) {
3083                         LyXLayout const & layout =
3084                                 textclasslist.Style(bview->buffer()->params.textclass,
3085                                                     row->par()->GetLayout());
3086                         x += lyxfont::width(layout.labelsep,
3087                                             GetFont(bview->buffer(), row->par(), -2));
3088                         if (main_body-1 <= last)
3089                                 x += fill_label_hfill;
3090                 }
3091         }
3092 }
3093
3094 /* important for the screen */
3095
3096
3097 /* the cursor set functions have a special mechanism. When they
3098 * realize, that you left an empty paragraph, they will delete it.
3099 * They also delete the corresponding row */
3100
3101 void LyXText::CursorRightOneWord(BufferView * bview) const
3102 {
3103         // treat floats, HFills and Insets as words
3104         LyXCursor tmpcursor = cursor;
3105         // CHECK See comment on top of text.C
3106
3107         if (tmpcursor.pos() == tmpcursor.par()->Last()
3108             && tmpcursor.par()->Next()) {
3109                         tmpcursor.par(tmpcursor.par()->Next());
3110                         tmpcursor.pos(0);
3111         } else {
3112                 int steps = 0;
3113
3114                 // Skip through initial nonword stuff.
3115                 while ( tmpcursor.pos() < tmpcursor.par()->Last() &&
3116                         ! tmpcursor.par()->IsWord( tmpcursor.pos() ) )
3117                 {
3118                   //    printf("Current pos1 %d", tmpcursor.pos()) ;
3119                         tmpcursor.pos(tmpcursor.pos() + 1);
3120                         ++steps;
3121                 }
3122                 // Advance through word.
3123                 while ( tmpcursor.pos() < tmpcursor.par()->Last() &&
3124                         tmpcursor.par()->IsWord( tmpcursor.pos() ) )
3125                 {
3126                   //     printf("Current pos2 %d", tmpcursor.pos()) ;
3127                         tmpcursor.pos(tmpcursor.pos() + 1);
3128                         ++steps;
3129                 }
3130         }
3131         SetCursor(bview, tmpcursor.par(), tmpcursor.pos());
3132 }
3133
3134
3135 void LyXText::CursorTab(BufferView * bview) const
3136 {
3137 #ifndef NEW_TABULAR
3138     if (cursor.par()->table) {
3139         int cell = NumberOfCell(cursor.par(), cursor.pos());
3140         while(cursor.par()->table->IsContRow(cell)) {
3141             CursorUp(bview);
3142             cell = NumberOfCell(cursor.par(), cursor.pos());
3143         }
3144         if (cursor.par()->table->ShouldBeVeryLastCell(cell))
3145             TableFeatures(bview, LyXTable::APPEND_ROW);
3146     }
3147 #endif
3148     LyXCursor tmpcursor = cursor;
3149     while (tmpcursor.pos() < tmpcursor.par()->Last()
3150            && !tmpcursor.par()->IsNewline(tmpcursor.pos()))
3151         tmpcursor.pos(tmpcursor.pos() + 1);
3152
3153     if (tmpcursor.pos() == tmpcursor.par()->Last()){
3154         if (tmpcursor.par()->Next()) {
3155             tmpcursor.par(tmpcursor.par()->Next());
3156             tmpcursor.pos(0);
3157         }
3158     } else
3159         tmpcursor.pos(tmpcursor.pos() + 1);
3160     SetCursor(bview, tmpcursor.par(), tmpcursor.pos());
3161 #ifndef NEW_TABULAR
3162     if (cursor.par()->table) {
3163         int cell = NumberOfCell(cursor.par(), cursor.pos());
3164         while (cursor.par()->table->IsContRow(cell) &&
3165                !cursor.par()->table->ShouldBeVeryLastCell(cell)) {
3166             tmpcursor = cursor;
3167             while (tmpcursor.pos() < tmpcursor.par()->Last()
3168                    && !tmpcursor.par()->IsNewline(tmpcursor.pos()))
3169                 tmpcursor.pos(tmpcursor.pos() + 1);
3170
3171             if (tmpcursor.pos() == tmpcursor.par()->Last()){
3172                 if (tmpcursor.par()->Next()) {
3173                     tmpcursor.par(tmpcursor.par()->Next());
3174                     tmpcursor.pos(0);
3175                 }
3176             } else
3177                 tmpcursor.pos(tmpcursor.pos() + 1);
3178             SetCursor(bview, tmpcursor.par(), tmpcursor.pos());
3179             cell = NumberOfCell(cursor.par(), cursor.pos());
3180         }
3181     }
3182 #endif
3183 }
3184
3185
3186 /* -------> Skip initial whitespace at end of word and move cursor to *start*
3187             of prior word, not to end of next prior word. */
3188
3189 void LyXText::CursorLeftOneWord(BufferView * bview)  const
3190 {
3191         // treat HFills, floats and Insets as words
3192         LyXCursor tmpcursor = cursor;
3193         while (tmpcursor.pos()
3194                && (tmpcursor.par()->IsSeparator(tmpcursor.pos() - 1)
3195                    || tmpcursor.par()->IsKomma(tmpcursor.pos() - 1))
3196                && !(tmpcursor.par()->IsHfill(tmpcursor.pos() - 1)
3197 #ifndef NEW_INSETS
3198                     || tmpcursor.par()->IsFloat(tmpcursor.pos() - 1)
3199 #endif
3200                     || tmpcursor.par()->IsInset(tmpcursor.pos() - 1)))
3201                 tmpcursor.pos(tmpcursor.pos() - 1);
3202
3203         if (tmpcursor.pos()
3204             && (tmpcursor.par()->IsInset(tmpcursor.pos() - 1)
3205 #ifndef NEW_INSETS
3206                 || tmpcursor.par()->IsFloat(tmpcursor.pos() - 1)
3207 #endif
3208                 || tmpcursor.par()->IsHfill(tmpcursor.pos() - 1))) {
3209                 tmpcursor.pos(tmpcursor.pos() - 1);
3210         } else if (!tmpcursor.pos()) {
3211                 if (tmpcursor.par()->Previous()){
3212                         tmpcursor.par(tmpcursor.par()->Previous());
3213                         tmpcursor.pos(tmpcursor.par()->Last());
3214                 }
3215         } else {                // Here, tmpcursor != 0
3216                 while (tmpcursor.pos() > 0 &&
3217                        tmpcursor.par()->IsWord(tmpcursor.pos()-1) )
3218                         tmpcursor.pos(tmpcursor.pos() - 1);
3219         }
3220         SetCursor(bview, tmpcursor.par(), tmpcursor.pos());
3221 }
3222
3223 /* -------> Select current word. This depends on behaviour of CursorLeftOneWord(), so it is
3224                         patched as well. */
3225
3226 void LyXText::SelectWord(BufferView * bview)
3227 {
3228         // Move cursor to the beginning, when not already there.
3229         if ( cursor.pos()
3230              && !cursor.par()->IsSeparator(cursor.pos()-1)
3231              && !cursor.par()->IsKomma(cursor.pos()-1) )
3232                 CursorLeftOneWord(bview);
3233
3234         // set the sel cursor
3235         sel_cursor = cursor;
3236
3237         while ( cursor.pos() < cursor.par()->Last()
3238                         && !cursor.par()->IsSeparator(cursor.pos())
3239                         && !cursor.par()->IsKomma(cursor.pos()) )
3240                 cursor.pos(cursor.pos() + 1);
3241         SetCursor(bview, cursor.par(), cursor.pos() );
3242
3243         // finally set the selection
3244         SetSelection();
3245 }
3246
3247
3248 /* -------> Select the word currently under the cursor when:
3249                         1: no selection is currently set,
3250                         2: the cursor is not at the borders of the word. */
3251
3252 bool LyXText::SelectWordWhenUnderCursor(BufferView * bview)
3253 {
3254         if (!selection &&
3255             cursor.pos() > 0 && cursor.pos() < cursor.par()->Last()
3256             && !cursor.par()->IsSeparator(cursor.pos())
3257             && !cursor.par()->IsKomma(cursor.pos())
3258             && !cursor.par()->IsSeparator(cursor.pos() -1)
3259             && !cursor.par()->IsKomma(cursor.pos() -1) ) {
3260                 SelectWord(bview);
3261                 return true;
3262         }
3263         return false;
3264 }
3265
3266
3267 // This function is only used by the spellchecker for NextWord().
3268 // It doesn't handle LYX_ACCENTs and probably never will.
3269 string const LyXText::SelectNextWord(BufferView * bview,
3270                                      float & value) const
3271 {
3272         LyXParagraph * tmppar = cursor.par();
3273
3274         // If this is not the very first word, skip rest of
3275         // current word because we are probably in the middle
3276         // of a word if there is text here.
3277         if (cursor.pos() || cursor.par()->previous) {
3278                 while (cursor.pos() < cursor.par()->Last()
3279                        && cursor.par()->IsLetter(cursor.pos()))
3280                         cursor.pos(cursor.pos() + 1);
3281         }
3282         // Now, skip until we have real text (will jump paragraphs)
3283         while ((cursor.par()->Last() > cursor.pos()
3284                 && (!cursor.par()->IsLetter(cursor.pos())
3285                     || cursor.par()->getFont(bview->buffer()->params, cursor.pos())
3286                     .latex() == LyXFont::ON))
3287                || (cursor.par()->Last() == cursor.pos()
3288                    && cursor.par()->Next())){
3289                 if (cursor.pos() == cursor.par()->Last()) {
3290                         cursor.par(cursor.par()->Next());
3291                         cursor.pos(0);
3292                 } else
3293                         cursor.pos(cursor.pos() + 1);
3294         }
3295
3296         // Update the value if we changed paragraphs
3297         if (cursor.par() != tmppar){
3298                 SetCursor(bview, cursor.par(), cursor.pos());
3299                 value = float(cursor.y())/float(height);
3300         }
3301
3302         // Start the selection from here
3303         sel_cursor = cursor;
3304
3305         std::ostringstream latex;
3306
3307         // and find the end of the word
3308         // (optional hyphens are part of a word)
3309         while (cursor.pos() < cursor.par()->Last()
3310                && (cursor.par()->IsLetter(cursor.pos()))
3311                    || (cursor.par()->GetChar(cursor.pos()) == LyXParagraph::META_INSET
3312                        && cursor.par()->GetInset(cursor.pos()) != 0
3313                        && cursor.par()->GetInset(cursor.pos())->Latex(bview->buffer(), latex, false, false) == 0
3314                        && latex.str() == "\\-"
3315                            ))
3316                 cursor.pos(cursor.pos() + 1);
3317
3318         // Finally, we copy the word to a string and return it
3319         string str;
3320         if (sel_cursor.pos() < cursor.pos()) {
3321                 LyXParagraph::size_type i;
3322                 for (i = sel_cursor.pos(); i < cursor.pos(); ++i) {
3323                         if (cursor.par()->GetChar(i) != LyXParagraph::META_INSET)
3324                                 str += cursor.par()->GetChar(i);
3325                 }
3326         }
3327         return str;
3328 }
3329
3330
3331 // This one is also only for the spellchecker
3332 void LyXText::SelectSelectedWord(BufferView * bview)
3333 {
3334         // move cursor to the beginning
3335         SetCursor(bview, sel_cursor.par(), sel_cursor.pos());
3336
3337         // set the sel cursor
3338         sel_cursor = cursor;
3339
3340         std::ostringstream latex;
3341
3342         // now find the end of the word
3343         while (cursor.pos() < cursor.par()->Last()
3344                && (cursor.par()->IsLetter(cursor.pos())
3345                    || (cursor.par()->GetChar(cursor.pos()) == LyXParagraph::META_INSET
3346                        && cursor.par()->GetInset(cursor.pos()) != 0
3347                        && cursor.par()->GetInset(cursor.pos())->Latex(bview->buffer(), latex, false, false) == 0
3348                        && latex.str() == "\\-"
3349                            )))
3350                 cursor.pos(cursor.pos() + 1);
3351
3352         SetCursor(bview, cursor.par(), cursor.pos());
3353
3354         // finally set the selection
3355         SetSelection();
3356 }
3357
3358
3359 /* -------> Delete from cursor up to the end of the current or next word. */
3360 void LyXText::DeleteWordForward(BufferView * bview)
3361 {
3362         if (!cursor.par()->Last())
3363                 CursorRight(bview);
3364         else {
3365                 LyXCursor tmpcursor = cursor;
3366                 tmpcursor.row(0); // ??
3367                 selection = true; // to avoid deletion
3368                 CursorRightOneWord(bview);
3369                 SetCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
3370                 sel_cursor = cursor;
3371                 cursor = tmpcursor;
3372                 SetSelection();
3373
3374                 /* -----> Great, CutSelection() gets rid of multiple spaces. */
3375                 CutSelection(bview);
3376         }
3377 }
3378
3379
3380 /* -------> Delete from cursor to start of current or prior word. */
3381 void LyXText::DeleteWordBackward(BufferView * bview)
3382 {
3383        if (!cursor.par()->Last())
3384                CursorLeft(bview);
3385        else {
3386                LyXCursor tmpcursor = cursor;
3387                tmpcursor.row(0); // ??
3388                selection = true; // to avoid deletion
3389                CursorLeftOneWord(bview);
3390                SetCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
3391                sel_cursor = cursor;
3392                cursor = tmpcursor;
3393                SetSelection();
3394                CutSelection(bview);
3395        }
3396 }
3397
3398
3399 /* -------> Kill to end of line. */
3400 void LyXText::DeleteLineForward(BufferView * bview)
3401 {
3402         if (!cursor.par()->Last())
3403                 // Paragraph is empty, so we just go to the right
3404                 CursorRight(bview);
3405         else {
3406                 LyXCursor tmpcursor = cursor;
3407                 // We can't store the row over a regular SetCursor
3408                 // so we set it to 0 and reset it afterwards.
3409                 tmpcursor.row(0); // ??
3410                 selection = true; // to avoid deletion
3411                 CursorEnd(bview);
3412                 SetCursor(bview, tmpcursor, tmpcursor.par(), tmpcursor.pos());
3413                 sel_cursor = cursor;
3414                 cursor = tmpcursor;
3415                 SetSelection();
3416                 // What is this test for ??? (JMarc)
3417                 if (!selection) {
3418                         DeleteWordForward(bview);
3419                 } else {
3420                         CutSelection(bview);
3421                 }
3422         }
3423 }
3424
3425
3426 // Change the case of a word at cursor position.
3427 // This function directly manipulates LyXParagraph::text because there
3428 // is no LyXParagraph::SetChar currently. I did what I could to ensure
3429 // that it is correct. I guess part of it should be moved to
3430 // LyXParagraph, but it will have to change for 1.1 anyway. At least
3431 // it does not access outside of the allocated array as the older
3432 // version did. (JMarc)
3433 void LyXText::ChangeWordCase(BufferView * bview, LyXText::TextCase action)
3434 {
3435 #ifndef NEW_INSETS
3436         LyXParagraph * tmppar = cursor.par()->ParFromPos(cursor.pos());
3437 #else
3438         LyXParagraph * tmppar = cursor.par();
3439 #endif
3440
3441         SetUndo(bview->buffer(),Undo::FINISH, tmppar->previous, tmppar->next);
3442
3443 #ifndef NEW_INSETS
3444         LyXParagraph::size_type tmppos =
3445                 cursor.par()->PositionInParFromPos(cursor.pos());
3446 #else
3447         LyXParagraph::size_type tmppos = cursor.pos();
3448 #endif
3449         while (tmppos < tmppar->size()) {
3450                 unsigned char c = tmppar->GetChar(tmppos);
3451                 if (IsKommaChar(c) || IsLineSeparatorChar(c))
3452                         break;
3453                 if (c != LyXParagraph::META_INSET) {
3454                         switch (action) {
3455                         case text_lowercase:
3456                                 c = tolower(c);
3457                                 break;
3458                         case text_capitalization:
3459                                 c = toupper(c);
3460                                 action = text_lowercase;
3461                                 break;
3462                         case text_uppercase:
3463                                 c = toupper(c);
3464                                 break;
3465                         }
3466                 }
3467
3468                 //tmppar->text[tmppos] = c;
3469                 tmppar->SetChar(tmppos, c);
3470                 ++tmppos;
3471         }
3472         CheckParagraph(bview, tmppar, tmppos);
3473         CursorRightOneWord(bview);
3474 }
3475
3476
3477 void LyXText::Delete(BufferView * bview)
3478 {
3479         // this is a very easy implementation
3480
3481         LyXCursor old_cursor = cursor;
3482         int old_cur_par_id = old_cursor.par()->id();
3483         int old_cur_par_prev_id = old_cursor.par()->previous ?
3484                 old_cursor.par()->previous->id() : 0;
3485
3486         // just move to the right
3487         CursorRightIntern(bview);
3488
3489         // CHECK Look at the comment here.
3490         // This check is not very good...
3491         // The CursorRightIntern calls DeleteEmptyParagrapgMechanism
3492         // and that can very well delete the par or par->previous in
3493         // old_cursor. Will a solution where we compare paragraph id's
3494         //work better?
3495         if ((cursor.par()->previous ? cursor.par()->previous->id() : 0)
3496             == old_cur_par_prev_id
3497             && cursor.par()->id() != old_cur_par_id)
3498                 return; // delete-empty-paragraph-mechanism has done it
3499
3500         // if you had success make a backspace
3501         if (old_cursor.par() != cursor.par() || old_cursor.pos() != cursor.pos()) {
3502                 LyXCursor tmpcursor = cursor;
3503                 cursor = old_cursor; // to make sure undo gets the right cursor position
3504                 SetUndo(bview->buffer(), Undo::DELETE,
3505 #ifndef NEW_INSETS
3506                         cursor.par()->ParFromPos(cursor.pos())->previous,
3507                         cursor.par()->ParFromPos(cursor.pos())->next
3508 #else
3509                         cursor.par()->previous,
3510                         cursor.par()->next
3511 #endif
3512                         );
3513                 cursor = tmpcursor;
3514                 Backspace(bview);
3515         }
3516 }
3517
3518
3519 void LyXText::Backspace(BufferView * bview)
3520 {
3521 #ifndef NEW_TABULAR
3522         /* table stuff -- begin */
3523         if (cursor.par()->table) {
3524                 BackspaceInTable(bview);
3525                 return;
3526         }
3527         /* table stuff -- end */
3528 #endif
3529         // LyXFont rawtmpfont = current_font;
3530         // LyXFont realtmpfont = real_current_font;
3531         //    We don't need the above variables as calling to SetCursor() with third
3532         //    argument eqaul to false, will not change current_font & real_current_font
3533
3534         // Get the font that is used to calculate the baselineskip
3535         LyXParagraph::size_type lastpos = cursor.par()->Last();
3536         LyXFont rawparfont = cursor.par()->GetFontSettings(bview->buffer()->params,
3537                                                          lastpos - 1);
3538
3539         if (cursor.pos() == 0) {
3540                 // The cursor is at the beginning of a paragraph, so the the backspace
3541                 // will collapse two paragraphs into one.
3542
3543                 // we may paste some paragraphs
3544
3545                 // is it an empty paragraph?
3546
3547                 if ((lastpos == 0
3548                      || (lastpos == 1 && cursor.par()->IsSeparator(0)))
3549 #ifndef NEW_INSETS
3550                     && !(cursor.par()->Next()
3551                          && cursor.par()->footnoteflag == LyXParagraph::NO_FOOTNOTE
3552                          && cursor.par()->Next()->footnoteflag == LyXParagraph::OPEN_FOOTNOTE)
3553 #endif
3554                         ) {
3555                         // This is an empty paragraph and we delete it just by moving the cursor one step
3556                         // left and let the DeleteEmptyParagraphMechanism handle the actual deletion
3557                         // of the paragraph.
3558
3559                         if (cursor.par()->previous) {
3560 #ifndef NEW_INSETS
3561                                 LyXParagraph * tmppar = cursor.par()->previous->FirstPhysicalPar();
3562 #else
3563                                 LyXParagraph * tmppar = cursor.par()->previous;
3564 #endif
3565                                 if (cursor.par()->GetLayout() == tmppar->GetLayout()
3566 #ifndef NEW_INSETS
3567                                     && cursor.par()->footnoteflag == tmppar->footnoteflag
3568 #endif
3569                                     && cursor.par()->GetAlign() == tmppar->GetAlign()) {
3570                                         // Inherit botom DTD from the paragraph below.
3571                                         // (the one we are deleting)
3572                                         tmppar->line_bottom = cursor.par()->line_bottom;
3573                                         tmppar->added_space_bottom = cursor.par()->added_space_bottom;
3574                                         tmppar->pagebreak_bottom = cursor.par()->pagebreak_bottom;
3575                                 }
3576
3577                                 CursorLeftIntern(bview);
3578
3579                                 // the layout things can change the height of a row !
3580                                 int tmpheight = cursor.row()->height();
3581                                 SetHeightOfRow(bview, cursor.row());
3582                                 if (cursor.row()->height() != tmpheight) {
3583                                         refresh_y = cursor.y() - cursor.row()->baseline();
3584                                         refresh_row = cursor.row();
3585                                         status = LyXText::NEED_MORE_REFRESH;
3586                                 }
3587                                 return;
3588                         }
3589                 }
3590
3591 #ifndef NEW_INSETS
3592                 if (cursor.par()->ParFromPos(cursor.pos())->previous){
3593                         SetUndo(bview->buffer(), Undo::DELETE,
3594                                 cursor.par()->ParFromPos(cursor.pos())->previous->previous,
3595                                 cursor.par()->ParFromPos(cursor.pos())->next);
3596                 }
3597 #else
3598                 if (cursor.par()->previous) {
3599                         SetUndo(bview->buffer(), Undo::DELETE,
3600                                 cursor.par()->previous->previous,
3601                                 cursor.par()->next);
3602                 }
3603 #endif
3604
3605                 LyXParagraph * tmppar = cursor.par();
3606                 Row * tmprow = cursor.row();
3607
3608                 // We used to do CursorLeftIntern() here, but it is
3609                 // not a good idea since it triggers the auto-delete
3610                 // mechanism. So we do a CursorLeftIntern()-lite,
3611                 // without the dreaded mechanism. (JMarc)
3612                 if (cursor.par()->Previous()) {
3613                         // steps into the above paragraph.
3614                         SetCursorIntern(bview, cursor.par()->Previous(),
3615                                         cursor.par()->Previous()->Last(), false);
3616                 }
3617
3618                 /* Pasting is not allowed, if the paragraphs have different
3619                    layout. I think it is a real bug of all other
3620                    word processors to allow it. It confuses the user.
3621                    Even so with a footnote paragraph and a non-footnote
3622                    paragraph. I will not allow pasting in this case,
3623                    because the user would be confused if the footnote behaves
3624                    different wether it is open or closed.
3625
3626                    Correction: Pasting is always allowed with standard-layout
3627                 */
3628                 if (cursor.par() != tmppar
3629                     && (cursor.par()->GetLayout() == tmppar->GetLayout()
3630                         || tmppar->GetLayout() == 0 /*standard*/)
3631 #ifndef NEW_INSETS
3632                     && cursor.par()->footnoteflag == tmppar->footnoteflag
3633 #endif
3634 #ifndef NEW_TABULAR
3635                     /* table stuff -- begin*/
3636                     && !cursor.par()->table /* no pasting of tables */
3637                     /* table stuff -- end*/
3638 #endif
3639                     && cursor.par()->GetAlign() == tmppar->GetAlign()) {
3640
3641                         RemoveParagraph(tmprow);
3642                         RemoveRow(tmprow);
3643                         cursor.par()->PasteParagraph(bview->buffer()->params);
3644
3645                         if (!cursor.pos() || !cursor.par()->IsSeparator(cursor.pos() - 1))
3646                                 ; //cursor.par()->InsertChar(cursor.pos(), ' ');
3647                         // strangely enough it seems that commenting out the line above removes
3648                         // most or all of the segfaults. I will however also try to move the
3649                         // two Remove... lines in front of the PasteParagraph too.
3650                         else
3651                                 if (cursor.pos())
3652                                         cursor.pos(cursor.pos() - 1);
3653
3654                         status = LyXText::NEED_MORE_REFRESH;
3655                         refresh_row = cursor.row();
3656                         refresh_y = cursor.y() - cursor.row()->baseline();
3657
3658                         // remove the lost paragraph
3659                         // This one is not safe, since the paragraph that the tmprow and the
3660                         // following rows belong to has been deleted by the PasteParagraph
3661                         // above. The question is... could this be moved in front of the
3662                         // PasteParagraph?
3663                         //RemoveParagraph(tmprow);
3664                         //RemoveRow(tmprow);
3665
3666                         // This rebuilds the rows.
3667                         AppendParagraph(bview, cursor.row());
3668                         UpdateCounters(bview, cursor.row());
3669
3670                         // the row may have changed, block, hfills etc.
3671                         SetCursor(bview, cursor.par(), cursor.pos(), false);
3672                 }
3673         } else {
3674                 /* this is the code for a normal backspace, not pasting
3675                  * any paragraphs */
3676                 SetUndo(bview->buffer(), Undo::DELETE,
3677 #ifndef NEW_INSETS
3678                         cursor.par()->ParFromPos(cursor.pos())->previous,
3679                         cursor.par()->ParFromPos(cursor.pos())->next
3680 #else
3681                         cursor.par()->previous,
3682                         cursor.par()->next
3683 #endif
3684                         );
3685                 // We used to do CursorLeftIntern() here, but it is
3686                 // not a good idea since it triggers the auto-delete
3687                 // mechanism. So we do a CursorLeftIntern()-lite,
3688                 // without the dreaded mechanism. (JMarc)
3689                 SetCursorIntern(bview, cursor.par(), cursor.pos()- 1,
3690                                 false, cursor.boundary());
3691
3692                 // some insets are undeletable here
3693                 if (cursor.par()->GetChar(cursor.pos()) == LyXParagraph::META_INSET) {
3694                         if (!cursor.par()->GetInset(cursor.pos())->Deletable())
3695                                 return;
3696                         // force complete redo when erasing display insets
3697                         // this is a cruel method but safe..... Matthias
3698                         if (cursor.par()->GetInset(cursor.pos())->display() ||
3699                             cursor.par()->GetInset(cursor.pos())->needFullRow()) {
3700                                 cursor.par()->Erase(cursor.pos());
3701                                 RedoParagraph(bview);
3702                                 return;
3703                         }
3704                 }
3705
3706                 Row * row = cursor.row();
3707                 long y = cursor.y() - row->baseline();
3708                 LyXParagraph::size_type z;
3709                 /* remember that a space at the end of a row doesnt count
3710                  * when calculating the fill */
3711                 if (cursor.pos() < RowLast(row) ||
3712                     !cursor.par()->IsLineSeparator(cursor.pos())) {
3713                         row->fill(row->fill() + SingleWidth(bview,
3714                                                             cursor.par(),
3715                                                             cursor.pos()));
3716                 }
3717
3718                 /* some special code when deleting a newline. This is similar
3719                  * to the behavior when pasting paragraphs */
3720                 if (cursor.pos() && cursor.par()->IsNewline(cursor.pos())) {
3721                         cursor.par()->Erase(cursor.pos());
3722                         // refresh the positions
3723                         Row * tmprow = row;
3724                         while (tmprow->next() && tmprow->next()->par() == row->par()) {
3725                                 tmprow = tmprow->next();
3726                                 tmprow->pos(tmprow->pos() - 1);
3727                         }
3728                         if (cursor.par()->IsLineSeparator(cursor.pos() - 1))
3729                                 cursor.pos(cursor.pos() - 1);
3730
3731                         if (cursor.pos() < cursor.par()->Last() && !cursor.par()->IsSeparator(cursor.pos())) {
3732                                 cursor.par()->InsertChar(cursor.pos(), ' ');
3733                                 // refresh the positions
3734                                 tmprow = row;
3735                                 while (tmprow->next() && tmprow->next()->par() == row->par()) {
3736                                         tmprow = tmprow->next();
3737                                         tmprow->pos(tmprow->pos() + 1);
3738                                 }
3739                         }
3740                 } else {
3741                         cursor.par()->Erase(cursor.pos());
3742
3743                         // refresh the positions
3744                         Row * tmprow = row;
3745                         while (tmprow->next()
3746                                && tmprow->next()->par() == row->par()) {
3747                                 tmprow = tmprow->next();
3748                                 tmprow->pos(tmprow->pos() - 1);
3749                         }
3750
3751                         // delete newlines at the beginning of paragraphs
3752                         while (cursor.par()->Last() &&
3753                                cursor.par()->IsNewline(cursor.pos()) &&
3754                                cursor.pos() == BeginningOfMainBody(bview->buffer(),
3755                                                                    cursor.par())) {
3756                                 cursor.par()->Erase(cursor.pos());
3757                                 // refresh the positions
3758                                 tmprow = row;
3759                                 while (tmprow->next() &&
3760                                        tmprow->next()->par() == row->par()) {
3761                                         tmprow = tmprow->next();
3762                                         tmprow->pos(tmprow->pos() - 1);
3763                                 }
3764                         }
3765                 }
3766
3767                 // is there a break one row above
3768                 if (row->previous() && row->previous()->par() == row->par()) {
3769                         z = NextBreakPoint(bview, row->previous(),
3770                                            workWidth(bview));
3771                         if ( z >= row->pos()) {
3772                                 row->pos(z + 1);
3773
3774                                 Row * tmprow = row->previous();
3775
3776                                 // maybe the current row is now empty
3777                                 if (row->pos() >= row->par()->Last()) {
3778                                         // remove it
3779                                         RemoveRow(row);
3780                                         need_break_row = 0;
3781                                 } else {
3782                                         BreakAgainOneRow(bview, row);
3783                                         if (row->next() && row->next()->par() == row->par())
3784                                                 need_break_row = row->next();
3785                                         else
3786                                                 need_break_row = 0;
3787                                 }
3788
3789                                 // set the dimensions of the row above
3790                                 y -= tmprow->height();
3791                                 tmprow->fill(Fill(bview, tmprow,
3792                                                   workWidth(bview)));
3793                                 SetHeightOfRow(bview, tmprow);
3794
3795                                 refresh_y = y;
3796                                 refresh_row = tmprow;
3797                                 status = LyXText::NEED_MORE_REFRESH;
3798                                 SetCursor(bview, cursor.par(), cursor.pos(),
3799                                           false, cursor.boundary());
3800                                 //current_font = rawtmpfont;
3801                                 //real_current_font = realtmpfont;
3802                                 // check, whether the last character's font has changed.
3803                                 if (rawparfont !=
3804                                     cursor.par()->GetFontSettings(bview->buffer()->params,
3805                                                                   cursor.par()->Last() - 1))
3806                                         RedoHeightOfParagraph(bview, cursor);
3807                                 return;
3808                         }
3809                 }
3810
3811                 // break the cursor row again
3812                 if (row->next() && row->next()->par() == row->par() &&
3813                     (RowLast(row) == row->par()->Last() - 1 ||
3814                      NextBreakPoint(bview, row, workWidth(bview)) != RowLast(row))) {
3815
3816                         /* it can happen that a paragraph loses one row
3817                          * without a real breakup. This is when a word
3818                          * is to long to be broken. Well, I don t care this
3819                          * hack ;-) */
3820                         if (RowLast(row) == row->par()->Last() - 1)
3821                                 RemoveRow(row->next());
3822
3823                         refresh_y = y;
3824                         refresh_row = row;
3825                         status = LyXText::NEED_MORE_REFRESH;
3826
3827                         BreakAgainOneRow(bview, row);
3828                         SetCursor(bview, cursor.par(), cursor.pos(), false, cursor.boundary());
3829                         // cursor MUST be in row now
3830
3831                         need_break_row = row->next();
3832                 } else  {
3833                         // set the dimensions of the row
3834                         row->fill(Fill(bview, row, workWidth(bview)));
3835                         int tmpheight = row->height();
3836                         SetHeightOfRow(bview, row);
3837                         if (tmpheight == row->height())
3838                                 status = LyXText::NEED_VERY_LITTLE_REFRESH;
3839                         else
3840                                 status = LyXText::NEED_MORE_REFRESH;
3841                         refresh_y = y;
3842                         refresh_row = row;
3843                         SetCursor(bview, cursor.par(), cursor.pos(), false, cursor.boundary());
3844                 }
3845         }
3846
3847         // current_font = rawtmpfont;
3848         // real_current_font = realtmpfont;
3849
3850         lastpos = cursor.par()->Last();
3851         if (cursor.pos() == lastpos) {
3852                 if (IsBoundary(bview->buffer(), cursor.par(), cursor.pos()) != cursor.boundary())
3853                         SetCursor(bview, cursor.par(), cursor.pos(), false, !cursor.boundary());
3854                 SetCurrentFont(bview);
3855         }
3856
3857         // check, wether the last characters font has changed.
3858         if (rawparfont !=
3859             cursor.par()->GetFontSettings(bview->buffer()->params, lastpos - 1)) {
3860                 RedoHeightOfParagraph(bview, cursor);
3861         } else {
3862                 // now the special right address boxes
3863                 if (textclasslist.Style(bview->buffer()->params.textclass,
3864                                         cursor.par()->GetLayout()).margintype == MARGIN_RIGHT_ADDRESS_BOX) {
3865                         RedoDrawingOfParagraph(bview, cursor);
3866                 }
3867         }
3868 }
3869
3870
3871 void LyXText::GetVisibleRow(BufferView * bview, int y_offset, int x_offset,
3872                             Row * row_ptr, long y, bool cleared)
3873 {
3874         /* returns a printed row */
3875         Painter & pain = bview->painter();
3876
3877         bool is_rtl = row_ptr->par()->isRightToLeftPar(bview->buffer()->params);
3878         LyXParagraph::size_type last = RowLastPrintable(row_ptr);
3879
3880         LyXParagraph::size_type vpos, pos;
3881         float x;
3882         float tmpx;
3883         int y_top;
3884         int y_bottom;
3885
3886         LyXFont font(LyXFont::ALL_SANE);
3887         int maxdesc;
3888         if (row_ptr->height() <= 0) {
3889                 lyxerr << "LYX_ERROR: row.height: "
3890                        << row_ptr->height() << endl;
3891                 return;
3892         }
3893
3894         float fill_separator;
3895         float fill_hfill;
3896         float fill_label_hfill;
3897         PrepareToPrint(bview, row_ptr, x, fill_separator,
3898                        fill_hfill, fill_label_hfill);
3899
3900         if (inset_owner && (x < 0))
3901                 x = 0;
3902         x += x_offset;
3903
3904         // clear the area where we want to paint/print
3905         int ww = bview->workWidth();
3906
3907         bool clear_area = true;
3908         Inset * inset = 0;
3909
3910         if (!bview->screen()->forceClear() && (last == row_ptr->pos()) &&
3911             (row_ptr->par()->GetChar(row_ptr->pos()) == LyXParagraph::META_INSET) &&
3912             (inset = row_ptr->par()->GetInset(row_ptr->pos()))) {
3913                 clear_area = inset->doClearArea();
3914         }
3915         // we don't need to clear it's already done!!!
3916         if (cleared) {
3917                 clear_area = true;
3918         } else if (clear_area) {
3919                 int w = (inset_owner ? inset_owner->width(bview, font) : ww);
3920                 pain.fillRectangle(x_offset, y_offset, w, row_ptr->height());
3921         } else if (inset != 0) {
3922                 int h = row_ptr->baseline() - inset->ascent(bview, font);
3923                 if (h > 0) {
3924                         int w = (inset_owner ?
3925                                  inset_owner->width(bview, font) : ww);
3926                         pain.fillRectangle(x_offset, y_offset, w, h);
3927                 }
3928                 h += inset->ascent(bview, font) + inset->descent(bview, font);
3929                 if ((row_ptr->height() - h) > 0) {
3930                         int w = (inset_owner ?
3931                                  inset_owner->width(bview, font) : ww);
3932                         pain.fillRectangle(x_offset,y_offset+h, w, row_ptr->height()-h);
3933                 }
3934                 if (!inset_owner && !inset->display() && !inset->needFullRow())
3935                 {
3936                         int w = inset->width(bview, font) + int(x);
3937                         pain.fillRectangle(w, y_offset, ww - w, row_ptr->height());
3938                 }
3939         }
3940
3941         if (selection) {
3942                 int w = (inset_owner ? inset_owner->width(bview, font) : ww);
3943                 /* selection code */
3944                 if (bidi_same_direction) {
3945                         if (sel_start_cursor.row() == row_ptr &&
3946                             sel_end_cursor.row() == row_ptr) {
3947                                 if (sel_start_cursor.x() < sel_end_cursor.x())
3948                                         pain.fillRectangle(x_offset + sel_start_cursor.x(),
3949                                                            y_offset,
3950                                                            sel_end_cursor.x() - sel_start_cursor.x(),
3951                                                            row_ptr->height(),
3952                                                            LColor::selection);
3953                                 else
3954                                         pain.fillRectangle(x_offset + sel_end_cursor.x(),
3955                                                            y_offset,
3956                                                            sel_start_cursor.x() - sel_end_cursor.x(),
3957                                                            row_ptr->height(),
3958                                                            LColor::selection);
3959                         } else if (sel_start_cursor.row() == row_ptr) {
3960                                 if (is_rtl)
3961                                         pain.fillRectangle(x_offset, y_offset,
3962                                                            sel_start_cursor.x(),
3963                                                            row_ptr->height(),
3964                                                            LColor::selection);
3965                                 else
3966                                         pain.fillRectangle(x_offset + sel_start_cursor.x(),
3967                                                            y_offset,
3968                                                            w - sel_start_cursor.x(),
3969                                                            row_ptr->height(),
3970                                                            LColor::selection);
3971                         } else if (sel_end_cursor.row() == row_ptr) {
3972                                 if (is_rtl)
3973                                         pain.fillRectangle(x_offset + sel_end_cursor.x(),
3974                                                            y_offset,
3975                                                            w - sel_end_cursor.x(),
3976                                                            row_ptr->height(),
3977                                                            LColor::selection);
3978                                 else
3979                                         pain.fillRectangle(x_offset, y_offset,
3980                                                            sel_end_cursor.x(),
3981                                                            row_ptr->height(),
3982                                                            LColor::selection);
3983                         } else if (y > long(sel_start_cursor.y())
3984                                    && y < long(sel_end_cursor.y())) {
3985                                 pain.fillRectangle(x_offset, y_offset, w,
3986                                                    row_ptr->height(),
3987                                                    LColor::selection);
3988                         }
3989                 } else if ( sel_start_cursor.row() != row_ptr &&
3990                             sel_end_cursor.row() != row_ptr &&
3991                             y > long(sel_start_cursor.y())
3992                             && y < long(sel_end_cursor.y())) {
3993                         pain.fillRectangle(x_offset, y_offset, w,
3994                                            row_ptr->height(),
3995                                            LColor::selection);
3996                 } else if (sel_start_cursor.row() == row_ptr ||
3997                            sel_end_cursor.row() == row_ptr) {
3998                         float tmpx = x;
3999 #ifndef NEW_TABULAR
4000                         int cell = 0;
4001                         if (row_ptr->par()->table) {
4002                                 cell = NumberOfCell(row_ptr->par(), row_ptr->pos());
4003                                 tmpx += row_ptr->par()->table->GetBeginningOfTextInCell(cell);
4004                         }
4005 #endif
4006                         if ( (sel_start_cursor.row() != row_ptr && !is_rtl) ||
4007                              (sel_end_cursor.row() != row_ptr && is_rtl))
4008                                 pain.fillRectangle(x_offset, y_offset,
4009                                                    int(tmpx),
4010                                                    row_ptr->height(),
4011                                                    LColor::selection);
4012 #ifndef NEW_TABULAR
4013                         if (row_ptr->par()->table) {
4014                                 float x_old = x;
4015                                 for (vpos = row_ptr->pos(); vpos <= last; ++vpos)  {
4016                                         pos = vis2log(vpos);
4017                                         float old_tmpx = tmpx;
4018                                         if (row_ptr->par()->IsNewline(pos)) {
4019                                                 tmpx = x_old + row_ptr->par()->table->WidthOfColumn(cell);
4020                                                 x_old = tmpx;
4021                                                 ++cell;
4022                                                 tmpx += row_ptr->par()->table->GetBeginningOfTextInCell(cell);
4023                                         } else {
4024                                                 tmpx += SingleWidth(bview, row_ptr->par(), pos);
4025                                         }
4026                                         if ( (sel_start_cursor.row() != row_ptr ||
4027                                               sel_start_cursor.pos() <= pos) &&
4028                                              (sel_end_cursor.row() != row_ptr ||
4029                                               pos < sel_end_cursor.pos()) )
4030                                                 pain.fillRectangle(x_offset + int(old_tmpx),
4031                                                                    y_offset,
4032                                                                    int(tmpx - old_tmpx + 1),
4033                                                                    row_ptr->height(),
4034                                                                    LColor::selection);
4035                                 }
4036                         } else {
4037 #endif
4038                                 LyXParagraph::size_type main_body =
4039                                         BeginningOfMainBody(bview->buffer(),
4040                                                             row_ptr->par());
4041
4042                                 for (vpos = row_ptr->pos(); vpos <= last; ++vpos)  {
4043                                         pos = vis2log(vpos);
4044                                         float old_tmpx = tmpx;
4045                                         if (main_body > 0 && pos == main_body-1) {
4046                                                 tmpx += fill_label_hfill +
4047                                                         lyxfont::width(textclasslist.Style(bview->buffer()->params.textclass,
4048                                                                                            row_ptr->par()->GetLayout()).labelsep,
4049                                                                        GetFont(bview->buffer(),row_ptr->par(), -2));
4050                                                 if (row_ptr->par()->IsLineSeparator(main_body-1))
4051                                                         tmpx -= SingleWidth(bview, row_ptr->par(), main_body-1);
4052                                         }
4053                                         if (HfillExpansion(bview->buffer(), row_ptr, pos)) {
4054                                                 tmpx += SingleWidth(bview, row_ptr->par(), pos);
4055                                                 if (pos >= main_body)
4056                                                         tmpx += fill_hfill;
4057                                                 else
4058                                                         tmpx += fill_label_hfill;
4059                                         }
4060                                         else if (row_ptr->par()->IsSeparator(pos)) {
4061                                                 tmpx += SingleWidth(bview, row_ptr->par(), pos);
4062                                                 if (pos >= main_body)
4063                                                         tmpx += fill_separator;
4064                                         } else
4065                                                 tmpx += SingleWidth(bview, row_ptr->par(), pos);
4066
4067                                         if ( (sel_start_cursor.row() != row_ptr ||
4068                                               sel_start_cursor.pos() <= pos) &&
4069                                              (sel_end_cursor.row() != row_ptr ||
4070                                               pos < sel_end_cursor.pos()) )
4071                                                 pain.fillRectangle(x_offset + int(old_tmpx),
4072                                                                    y_offset,
4073                                                                    int(tmpx - old_tmpx + 1),
4074                                                                    row_ptr->height(),
4075                                                                    LColor::selection);
4076                                 }
4077 #ifndef NEW_TABULAR
4078                         }
4079 #endif
4080                         if ( (sel_start_cursor.row() != row_ptr && is_rtl) ||
4081                              (sel_end_cursor.row() != row_ptr && !is_rtl) )
4082                                 pain.fillRectangle(x_offset + int(tmpx),
4083                                                    y_offset,
4084                                                    int(ww - tmpx),
4085                                                    row_ptr->height(),
4086                                                    LColor::selection);
4087                 }
4088         }
4089
4090         int box_x = 0;
4091 #ifndef NEW_INSETS
4092         if (row_ptr->par()->footnoteflag == LyXParagraph::OPEN_FOOTNOTE) {
4093                 LyXFont font(LyXFont::ALL_SANE);
4094                 font.setSize(LyXFont::SIZE_FOOTNOTE);
4095                 font.setColor(LColor::footnote);
4096
4097                 box_x = LYX_PAPER_MARGIN + lyxfont::width(" wide-tab ", font);
4098                 if (row_ptr->previous() &&
4099                     row_ptr->previous()->par()->footnoteflag != LyXParagraph::OPEN_FOOTNOTE){
4100                         string fs;
4101                         switch (row_ptr->par()->footnotekind) {
4102                         case LyXParagraph::MARGIN:
4103                                 fs = " margin";
4104                                 break;
4105                         case LyXParagraph::FIG:
4106                                 fs = " fig";
4107                                 break;
4108                         case LyXParagraph::TAB:
4109                                 fs = " tab";
4110                                 break;
4111                         case LyXParagraph::WIDE_FIG:
4112                                 fs = " wide-fig";
4113                                 break;
4114                         case LyXParagraph::WIDE_TAB:
4115                                 fs = " wide-tab";
4116                                 break;
4117                         case LyXParagraph::ALGORITHM:
4118                                 fs = " alg";
4119                                 break;
4120                         case LyXParagraph::FOOTNOTE:
4121                                 fs = " foot";
4122                                 break;
4123                         }
4124
4125                         pain.fillRectangle(LYX_PAPER_MARGIN,
4126                                            y_offset + 1,
4127                                            box_x - LYX_PAPER_MARGIN,
4128                                            int(lyxfont::maxAscent(font)
4129                                                + lyxfont::maxDescent(font)),
4130                                            LColor::footnotebg);
4131
4132                         pain.line(LYX_PAPER_MARGIN, y_offset,
4133                                   workWidth(bview) - LYX_PAPER_MARGIN, y_offset,
4134                                   LColor::footnoteframe);
4135
4136                         pain.text(LYX_PAPER_MARGIN,
4137                                   y_offset + int(lyxfont::maxAscent(font)) + 1,
4138                                   fs, font);
4139
4140                         pain.line(LYX_PAPER_MARGIN, y_offset,
4141                                   LYX_PAPER_MARGIN,
4142                                   y_offset + int(lyxfont::maxAscent(font)
4143                                                + lyxfont::maxDescent(font)),
4144                                   LColor::footnoteframe);
4145
4146                         pain.line(LYX_PAPER_MARGIN,
4147                                   y_offset + int(lyxfont::maxAscent(font)
4148                                                + lyxfont::maxDescent(font)) + 1,
4149                                   box_x,
4150                                   y_offset + int(lyxfont::maxAscent(font)
4151                                                + lyxfont::maxDescent(font)) + 1,
4152                                   LColor::footnoteframe);
4153
4154                 }
4155
4156                 /* draw the open floats in a red box */
4157                 pain.line(box_x, y_offset,
4158                           box_x, y_offset + row_ptr->height(),
4159                           LColor::footnoteframe);
4160
4161                 pain.line(workWidth(bview) - LYX_PAPER_MARGIN,
4162                           y_offset,
4163                           workWidth(bview) - LYX_PAPER_MARGIN,
4164                           y_offset + row_ptr->height(),
4165                           LColor::footnoteframe);
4166
4167
4168                 // Draw appendix lines
4169                 LyXParagraph * p = row_ptr->par()->PreviousBeforeFootnote()->FirstPhysicalPar();
4170                 if (p->appendix){
4171                         pain.line(1, y_offset,
4172                                   1, y_offset + row_ptr->height(),
4173                                   LColor::appendixline);
4174                         pain.line(workWidth(bview) - 2, y_offset,
4175                                   workWidth(bview) - 2,
4176                                   y_offset + row_ptr->height(),
4177                                   LColor::appendixline);
4178                 }
4179
4180                 // Draw minipage line
4181                 bool minipage = p->pextra_type == LyXParagraph::PEXTRA_MINIPAGE;
4182                 if (minipage)
4183                         pain.line(LYX_PAPER_MARGIN/5, y_offset,
4184                                   LYX_PAPER_MARGIN/5,
4185                                   y_offset + row_ptr->height() - 1,
4186                                   LColor::minipageline);
4187
4188                 // Draw depth lines
4189                 int depth = p->GetDepth();
4190                 for (int i = 1; i <= depth; ++i) {
4191                         int line_x = (LYX_PAPER_MARGIN / 5) * (i + minipage);
4192                         pain.line(line_x, y_offset, line_x,
4193                                   y_offset + row_ptr->height() - 1,
4194                                   LColor::depthbar);
4195                 }
4196         } else if (row_ptr->previous() &&
4197                    row_ptr->previous()->par()->footnoteflag
4198                    == LyXParagraph::OPEN_FOOTNOTE) {
4199                 LyXFont font(LyXFont::ALL_SANE);
4200                 font.setSize(LyXFont::SIZE_FOOTNOTE);
4201
4202                 int box_x = LYX_PAPER_MARGIN;
4203                 box_x += lyxfont::width(" wide-tab ", font);
4204
4205                 pain.line(box_x, y_offset,
4206                           workWidth(bview) - LYX_PAPER_MARGIN,
4207                           y_offset, LColor::footnote);
4208         }
4209 #endif
4210         // Draw appendix lines
4211 #ifndef NEW_INSETS
4212         LyXParagraph * firstpar = row_ptr->par()->FirstPhysicalPar();
4213 #else
4214         LyXParagraph * firstpar = row_ptr->par();
4215 #endif
4216         if (firstpar->appendix){
4217                 pain.line(1, y_offset,
4218                           1, y_offset + row_ptr->height(),
4219                           LColor::appendixline);
4220                 pain.line(ww - 2, y_offset,
4221                           ww - 2, y_offset + row_ptr->height(),
4222                           LColor::appendixline);
4223         }
4224
4225         // Draw minipage line
4226         bool minipage = firstpar->pextra_type == LyXParagraph::PEXTRA_MINIPAGE;
4227         if (minipage)
4228                 pain.line(LYX_PAPER_MARGIN/5 + box_x, y_offset,
4229                           LYX_PAPER_MARGIN/5 + box_x,
4230                           y_offset + row_ptr->height() - 1,
4231                           LColor::minipageline);
4232
4233         // Draw depth lines
4234         int depth = firstpar->GetDepth();
4235         if (depth > 0) {
4236                 int next_depth = 0;
4237                 int prev_depth = 0;
4238                 if (row_ptr->next())
4239 #ifndef NEW_INSETS
4240                         if (row_ptr->par()->footnoteflag ==
4241                             row_ptr->next()->par()->footnoteflag)
4242                                 next_depth = row_ptr->next()->par()->GetDepth();
4243                         else if (row_ptr->par()->footnoteflag != LyXParagraph::OPEN_FOOTNOTE)
4244                                 next_depth = depth;
4245 #else
4246                                 next_depth = row_ptr->next()->par()->GetDepth();
4247 #endif
4248                 if (row_ptr->previous())
4249 #ifndef NEW_INSETS
4250                         if (row_ptr->par()->footnoteflag ==
4251                             row_ptr->previous()->par()->footnoteflag)
4252                                 prev_depth = row_ptr->previous()->par()->GetDepth();
4253                         else if (row_ptr->par()->footnoteflag != LyXParagraph::OPEN_FOOTNOTE)
4254                                 prev_depth = depth;
4255 #else
4256                                 prev_depth = row_ptr->previous()->par()->GetDepth();
4257 #endif
4258
4259                 for (int i = 1; i <= depth; ++i) {
4260                         int line_x = (LYX_PAPER_MARGIN / 5) * (i + minipage) + box_x;
4261                         pain.line(line_x, y_offset, line_x,
4262                                   y_offset + row_ptr->height() - 1 - (i - next_depth - 1) * 3,
4263                                   LColor::depthbar);
4264
4265                         if (i > prev_depth)
4266                                 pain.fillRectangle(line_x, y_offset, LYX_PAPER_MARGIN / 5, 2,
4267                                                    LColor::depthbar);
4268                         if (i > next_depth)
4269                                 pain.fillRectangle(line_x,
4270                                                    y_offset + row_ptr->height() - 2 - (i - next_depth - 1) * 3,
4271                                                    LYX_PAPER_MARGIN / 5, 2,
4272                                                    LColor::depthbar);
4273                 }
4274         }
4275
4276
4277         LyXLayout const & layout =
4278                 textclasslist.Style(bview->buffer()->params.textclass,
4279                                     row_ptr->par()->GetLayout());
4280
4281         y_top = 0;
4282         y_bottom = row_ptr->height();
4283
4284         /* is it a first row? */
4285         if (!row_ptr->pos() && (row_ptr->par() == firstpar)) {
4286
4287                 /* start of appendix? */
4288                 if (row_ptr->par()->start_of_appendix){
4289                         pain.line(1, y_offset,
4290                                   ww - 2, y_offset,
4291                                   LColor::appendixline);
4292                 }
4293
4294                 /* think about the margins */
4295                 if (!row_ptr->previous() && bv_owner)
4296                         y_top += LYX_PAPER_MARGIN;
4297
4298                 if (row_ptr->par()->pagebreak_top){ /* draw a top pagebreak  */
4299                         LyXFont pb_font;
4300                         pb_font.setColor(LColor::pagebreak).decSize();
4301                         int w = 0, a = 0, d = 0;
4302                         pain.line(0, y_offset + y_top + 2*DefaultHeight(),
4303                                   ww,
4304                                   y_offset + y_top + 2 * DefaultHeight(),
4305                                   LColor::pagebreak,
4306                                   Painter::line_onoffdash)
4307                                 .rectText(0,
4308                                           0,
4309                                           _("Page Break (top)"),
4310                                           pb_font,
4311                                           LColor::background,
4312                                           LColor::background, false, w, a, d);
4313                         pain.rectText((ww - w)/2,
4314                                       y_offset + y_top + 2 * DefaultHeight() + d,
4315                                       _("Page Break (top)"),
4316                                       pb_font,
4317                                       LColor::background,
4318                                       LColor::background);
4319                         y_top += 3 * DefaultHeight();
4320                 }
4321
4322                 if (row_ptr->par()->added_space_top.kind() == VSpace::VFILL) {
4323                         /* draw a vfill top  */
4324                         pain.line(0, y_offset + 2 + y_top,
4325                                   LYX_PAPER_MARGIN, y_offset + 2 + y_top,
4326                                   LColor::vfillline);
4327
4328                         pain.line(0, y_offset + y_top + 3 * DefaultHeight(),
4329                                   LYX_PAPER_MARGIN,
4330                                   y_offset + y_top + 3 * DefaultHeight(),
4331                                   LColor::vfillline);
4332
4333                         pain.line(LYX_PAPER_MARGIN / 2, y_offset + 2 + y_top,
4334                                   LYX_PAPER_MARGIN / 2,
4335                                   y_offset + y_top + 3 * DefaultHeight(),
4336                                   LColor::vfillline);
4337
4338                         y_top += 3 * DefaultHeight();
4339                 }
4340
4341                 /* think about user added space */
4342                 y_top += int(row_ptr->par()->added_space_top.inPixels(bview));
4343
4344                 /* think about the parskip */
4345                 /* some parskips VERY EASY IMPLEMENTATION */
4346                 if (bview->buffer()->params.paragraph_separation == BufferParams::PARSEP_SKIP) {
4347                         if (layout.latextype == LATEX_PARAGRAPH
4348                             && firstpar->GetDepth() == 0
4349                             && firstpar->Previous())
4350                                 y_top += bview->buffer()->params.getDefSkip().inPixels(bview);
4351                         else if (firstpar->Previous()
4352                                  && textclasslist.Style(bview->buffer()->params.textclass,
4353                                                         firstpar->Previous()->GetLayout()).latextype == LATEX_PARAGRAPH
4354                                  && firstpar->Previous()->GetDepth() == 0)
4355                                 // is it right to use defskip here, too? (AS)
4356                                 y_top += bview->buffer()->params.getDefSkip().inPixels(bview);
4357                 }
4358
4359                 if (row_ptr->par()->line_top) {      /* draw a top line  */
4360                         y_top +=  lyxfont::ascent('x',
4361                                                   GetFont(bview->buffer(),
4362                                                           row_ptr->par(), 0));
4363
4364                         pain.line(0, y_offset + y_top,
4365                                   ww, y_offset + y_top,
4366                                   LColor::topline,
4367                                   Painter::line_solid,
4368                                   Painter::line_thick);
4369
4370                         y_top +=  lyxfont::ascent('x',GetFont(bview->buffer(),
4371                                                               row_ptr->par(), 0));
4372                 }
4373
4374                 /* should we print a label? */
4375                 if (layout.labeltype >= LABEL_STATIC
4376                     && (layout.labeltype != LABEL_STATIC
4377                         || layout.latextype != LATEX_ENVIRONMENT
4378                         || row_ptr->par()->IsFirstInSequence())) {
4379                         font = GetFont(bview->buffer(), row_ptr->par(), -2);
4380                         if (!row_ptr->par()->GetLabelstring().empty()) {
4381                                 tmpx = x;
4382                                 string tmpstring = row_ptr->par()->GetLabelstring();
4383
4384                                 if (layout.labeltype == LABEL_COUNTER_CHAPTER) {
4385                                         if (bview->buffer()->params.secnumdepth >= 0) {
4386                                                 /* this is special code for the chapter layout. This is printed in
4387                                                  * an extra row and has a pagebreak at the top. */
4388                                                 float spacing_val = 1.0;
4389                                                 if (!row_ptr->par()->spacing.isDefault()) {
4390                                                         spacing_val = row_ptr->par()->spacing.getValue();
4391                                                 } else {
4392                                                         spacing_val = bview->buffer()->params.spacing.getValue();
4393                                                 }
4394
4395                                                 maxdesc = int(lyxfont::maxDescent(font) * layout.spacing.getValue() * spacing_val)
4396                                                         + int(layout.parsep) * DefaultHeight();
4397                                                 if (is_rtl)
4398                                                         tmpx = ww - LeftMargin(bview, row_ptr) -
4399                                                                 lyxfont::width(tmpstring, font);
4400                                                 pain.text(int(tmpx),
4401                                                           y_offset + row_ptr->baseline() - row_ptr->ascent_of_text() - maxdesc,
4402                                                           tmpstring, font);
4403                                         }
4404                                 } else {
4405                                         if (is_rtl) {
4406                                                 tmpx = ww - LeftMargin(bview, row_ptr)
4407                                                         + lyxfont::width(layout.labelsep, font);
4408 #ifndef NEW_INSETS
4409                                                 if (row_ptr->par()->footnoteflag == LyXParagraph::OPEN_FOOTNOTE)  {
4410                                                         LyXFont font(LyXFont::ALL_SANE);
4411                                                         font.setSize(LyXFont::SIZE_SMALL);
4412                                                         tmpx += lyxfont::width("Mwide-fixM", font);
4413                                                 }
4414 #endif
4415                                         } else
4416                                                 tmpx = x - lyxfont::width(layout.labelsep, font)
4417                                                         - lyxfont::width(tmpstring, font);
4418
4419                                         /* draw it! */
4420                                         pain.text(int(tmpx),
4421                                                   y_offset + row_ptr->baseline(),
4422                                                   tmpstring, font);
4423                                 }
4424                         }
4425                         /* the labels at the top of an environment. More or less for bibliography */
4426                 } else if (layout.labeltype == LABEL_TOP_ENVIRONMENT ||
4427                            layout.labeltype == LABEL_BIBLIO ||
4428                            layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT) {
4429                         if (row_ptr->par()->IsFirstInSequence()) {
4430                                 font = GetFont(bview->buffer(),
4431                                                row_ptr->par(), -2);
4432                                 if (!row_ptr->par()->GetLabelstring().empty()) {
4433                                         string tmpstring = row_ptr->par()->GetLabelstring();
4434                                         float spacing_val = 1.0;
4435                                         if (!row_ptr->par()->spacing.isDefault()) {
4436                                                 spacing_val = row_ptr->par()->spacing.getValue();
4437                                         } else {
4438                                                 spacing_val = bview->buffer()->params.spacing.getValue();
4439                                         }
4440
4441                                         maxdesc = int(lyxfont::maxDescent(font) * layout.spacing.getValue() * spacing_val
4442                                                       + (layout.labelbottomsep * DefaultHeight()));
4443
4444                                         tmpx = x;
4445                                         if (layout.labeltype == LABEL_CENTERED_TOP_ENVIRONMENT){
4446                                                 tmpx = ( (is_rtl ? LeftMargin(bview, row_ptr) : x)
4447                                                          + ww - RightMargin(bview->buffer(), row_ptr) ) / 2;
4448                                                 tmpx -= lyxfont::width(tmpstring, font) / 2;
4449                                         } else if (is_rtl)
4450                                                 tmpx = ww - LeftMargin(bview, row_ptr) -
4451                                                         lyxfont::width(tmpstring, font);
4452                                         pain.text(int(tmpx),
4453                                                   y_offset + row_ptr->baseline()
4454                                                   - row_ptr->ascent_of_text()
4455                                                   - maxdesc,
4456                                                   tmpstring, font);
4457                                 }
4458                         }
4459                 }
4460                 if (layout.labeltype == LABEL_BIBLIO && row_ptr->par()->bibkey) {
4461                         font = GetFont(bview->buffer(), row_ptr->par(), -1);
4462                         if (is_rtl)
4463                                 tmpx = ww - LeftMargin(bview, row_ptr)
4464                                         + lyxfont::width(layout.labelsep, font);
4465                         else
4466                                 tmpx = x - lyxfont::width(layout.labelsep, font)
4467                                         - row_ptr->par()->bibkey->width(bview, font);
4468                         row_ptr->par()->bibkey->draw(bview, font,
4469                                                    y_offset + row_ptr->baseline(),
4470                                                    tmpx, clear_area);
4471                 }
4472         }
4473
4474         /* is it a last row? */
4475 #ifndef NEW_INSETS
4476         LyXParagraph * par = row_ptr->par()->LastPhysicalPar();
4477 #else
4478         LyXParagraph * par = row_ptr->par();
4479 #endif
4480         if (
4481 #ifndef NEW_INSETS
4482                 (row_ptr->par()->ParFromPos(last + 1) == par)
4483 #else
4484                 (row_ptr->par() == par)
4485 #endif
4486             && (!row_ptr->next() || (row_ptr->next()->par() != row_ptr->par())))
4487         {
4488                 /* think about the margins */
4489                 if (!row_ptr->next() && bv_owner)
4490                         y_bottom -= LYX_PAPER_MARGIN;
4491
4492                 /* draw a bottom pagebreak */
4493                 if (firstpar->pagebreak_bottom) {
4494                         LyXFont pb_font;
4495                         pb_font.setColor(LColor::pagebreak).decSize();
4496                         int w = 0, a = 0, d = 0;
4497                         pain.line(0,
4498                                   y_offset + y_bottom - 2 * DefaultHeight(),
4499                                   ww,
4500                                   y_offset + y_bottom - 2 * DefaultHeight(),
4501                                   LColor::pagebreak,
4502                                   Painter::line_onoffdash)
4503                                 .rectText(0,
4504                                           0,
4505                                           _("Page Break (bottom)"),
4506                                           pb_font,
4507                                           LColor::background,
4508                                           LColor::background, false, w, a, d);
4509                         pain.rectText((ww - w) / 2,
4510                                       y_offset + y_top + 2 * DefaultHeight() + d,
4511                                       _("Page Break (bottom)"),
4512                                       pb_font,
4513                                       LColor::background,
4514                                       LColor::background);
4515                         y_bottom -= 3 * DefaultHeight();
4516                 }
4517
4518                 if (firstpar->added_space_bottom.kind() == VSpace::VFILL) {
4519                         /* draw a vfill bottom  */
4520                         pain.line(0, y_offset + y_bottom - 3 * DefaultHeight(),
4521                                   LYX_PAPER_MARGIN,
4522                                   y_offset + y_bottom - 3 * DefaultHeight(),
4523                                   LColor::vfillline);
4524                         pain.line(0, y_offset + y_bottom - 2,
4525                                   LYX_PAPER_MARGIN,
4526                                   y_offset + y_bottom - 2,
4527                                   LColor::vfillline);
4528                         pain.line(LYX_PAPER_MARGIN / 2,
4529                                   y_offset + y_bottom - 3 * DefaultHeight(),
4530                                   LYX_PAPER_MARGIN / 2,
4531                                   y_offset + y_bottom - 2,
4532                                   LColor::vfillline);
4533                         y_bottom -= 3 * DefaultHeight();
4534                 }
4535
4536                 /* think about user added space */
4537                 y_bottom -= int(firstpar->added_space_bottom.inPixels(bview));
4538
4539                 if (firstpar->line_bottom) {
4540                         /* draw a bottom line */
4541                         y_bottom -= lyxfont::ascent('x', GetFont(bview->buffer(),
4542                                                                  par, par->Last() - 1));
4543                         pain.line(0, y_offset + y_bottom,
4544                                   ww, y_offset + y_bottom,
4545                                   LColor::topline, Painter::line_solid,
4546                                   Painter::line_thick);
4547                         y_bottom -= lyxfont::ascent('x', GetFont(bview->buffer(),
4548                                                                  par, par->Last() - 1));
4549                 }
4550
4551                 // draw an endlabel
4552                 int endlabel = row_ptr->par()->GetEndLabel(bview->buffer()->params);
4553                 switch (endlabel) {
4554                 case END_LABEL_BOX:
4555                 case END_LABEL_FILLED_BOX:
4556                 {
4557                         LyXFont font = GetFont(bview->buffer(),
4558                                                row_ptr->par(), last);
4559                         int size = int(0.75 * lyxfont::maxAscent(font));
4560                         int y = (y_offset + row_ptr->baseline()) - size;
4561                         int x = is_rtl ? LYX_PAPER_MARGIN
4562                                 : ww - LYX_PAPER_MARGIN - size;
4563 #ifndef NEW_INSETS
4564                         if (row_ptr->par()->footnoteflag == LyXParagraph::OPEN_FOOTNOTE)
4565                                 if (is_rtl) {
4566                                         LyXFont font(LyXFont::ALL_SANE);
4567                                         font.setSize(LyXFont::SIZE_SMALL);
4568                                         x += lyxfont::width("Mwide-figM", font);
4569                                 } else
4570                                         x -= LYX_PAPER_MARGIN/2;
4571 #endif
4572                         if (row_ptr->fill() <= size)
4573                                 x += (size - row_ptr->fill() + 1) * (is_rtl ? -1 : 1);
4574                         if (endlabel == END_LABEL_BOX) {
4575                                 pain.line(x, y, x, y + size,
4576                                           LColor::eolmarker);
4577                                 pain.line(x + size, y, x + size , y + size,
4578                                           LColor::eolmarker);
4579                                 pain.line(x, y, x + size, y,
4580                                           LColor::eolmarker);
4581                                 pain.line(x, y + size, x + size, y + size,
4582                                           LColor::eolmarker);
4583                         } else
4584                                 pain.fillRectangle(x, y, size, size,
4585                                                    LColor::eolmarker);
4586                         break;
4587                 }
4588                 case END_LABEL_STATIC:
4589                 {
4590                         LyXTextClass::LayoutList::size_type layout = row_ptr->par()->GetLayout();
4591                         string tmpstring = textclasslist.Style(bview->buffer()->params.textclass,
4592                                                          layout).endlabelstring();
4593                         font = GetFont(bview->buffer(), row_ptr->par(), -2);
4594                         int tmpx = is_rtl ? int(x) - lyxfont::width(tmpstring, font)
4595                                 : ww - RightMargin(bview->buffer(), row_ptr) - row_ptr->fill();
4596                         pain.text( tmpx, y_offset + row_ptr->baseline(), tmpstring, font);
4597                         break;
4598                 }
4599                 case END_LABEL_NO_LABEL:
4600                         break;
4601                 }
4602         }
4603
4604         /* draw the text in the pixmap */
4605
4606         vpos = row_ptr->pos();
4607 #ifndef NEW_TABULAR
4608         /* table stuff -- begin*/
4609         if (row_ptr->par()->table) {
4610                 bool on_off;
4611                 int cell = NumberOfCell(row_ptr->par(), row_ptr->pos());
4612                 float x_old = x;
4613                 x += row_ptr->par()->table->GetBeginningOfTextInCell(cell);
4614
4615                 while (vpos <= last)  {
4616                         pos = vis2log(vpos);
4617                         if (row_ptr->par()->IsNewline(pos)) {
4618
4619                                 x = x_old + row_ptr->par()->table->WidthOfColumn(cell);
4620                                 /* draw the table lines, still very simple */
4621                                 on_off = !row_ptr->par()->table->TopLine(cell);
4622                                 if ((!on_off ||
4623                                      !row_ptr->par()->table->TopAlreadyDrawed(cell)) &&
4624                                     !row_ptr->par()->table->IsContRow(cell))
4625                                         pain.line(int(x_old),
4626                                                   y_offset + row_ptr->baseline() - row_ptr->ascent_of_text(),
4627                                                   int(x),
4628                                                   y_offset + row_ptr->baseline() - row_ptr->ascent_of_text(),
4629                                                   LColor::tableline,
4630                                                   on_off ? Painter::line_onoffdash : Painter::line_solid);
4631
4632                                 on_off = !row_ptr->par()->table->BottomLine(cell);
4633                                 if ((!on_off && !row_ptr->par()->table->RowHasContRow(cell)) ||
4634                                     row_ptr->par()->table->VeryLastRow(cell))
4635
4636                                         pain.line(int(x_old),
4637                                                   y_offset + y_bottom - 1,
4638                                                   int(x),
4639                                                   y_offset + y_bottom - 1,
4640                                                   LColor::tableline,
4641                                                   on_off ? Painter::line_onoffdash : Painter::line_solid);
4642
4643                                 on_off = !row_ptr->par()->table->LeftLine(cell);
4644
4645                                 pain.line(int(x_old),
4646                                           y_offset + row_ptr->baseline() - row_ptr->ascent_of_text(),
4647                                           int(x_old),
4648                                           y_offset + y_bottom - 1,
4649                                           LColor::tableline,
4650                                           on_off ? Painter::line_onoffdash : Painter::line_solid);
4651
4652                                 on_off = !row_ptr->par()->table->RightLine(cell);
4653
4654                                 pain.line(int(x) - row_ptr->par()->table->AdditionalWidth(cell),
4655                                           y_offset + row_ptr->baseline() - row_ptr->ascent_of_text(),
4656                                           int(x) - row_ptr->par()->table->AdditionalWidth(cell),
4657                                           y_offset + y_bottom - 1,
4658                                           LColor::tableline,
4659                                           on_off ? Painter::line_onoffdash : Painter::line_solid);
4660
4661                                 x_old = x;
4662                                 /* take care about the alignment and other spaces */
4663                                 ++cell;
4664                                 x += row_ptr->par()->table->GetBeginningOfTextInCell(cell);
4665                                 if (row_ptr->par()->table->IsFirstCell(cell))
4666                                         --cell; // little hack, sorry
4667                                 ++vpos;
4668                         } else if (row_ptr->par()->IsHfill(pos)) {
4669                                 x += 1;
4670
4671                                 pain.line(int(x),
4672                                           y_offset + row_ptr->baseline() - DefaultHeight() / 2,
4673                                           int(x),
4674                                           y_offset + row_ptr->baseline(),
4675                                           LColor::vfillline);
4676
4677                                 x += 2;
4678                                 ++vpos;
4679                         } else if (row_ptr->par()->IsSeparator(pos)) {
4680                                 tmpx = x;
4681                                 x+= SingleWidth(bview,
4682                                                 row_ptr->par(), pos);
4683                                 ++vpos;
4684                         } else
4685                                 draw(bview, row_ptr, vpos, y_offset, x, clear_area);
4686                 }
4687
4688                 /* do not forget the very last cell. This has no NEWLINE so
4689                  * ignored by the code above*/
4690                 if (cell == row_ptr->par()->table->GetNumberOfCells() - 1) {
4691                         x = x_old + row_ptr->par()->table->WidthOfColumn(cell);
4692                         on_off = !row_ptr->par()->table->TopLine(cell);
4693                         if ((!on_off ||
4694                              !row_ptr->par()->table->TopAlreadyDrawed(cell)) &&
4695                             !row_ptr->par()->table->IsContRow(cell))
4696
4697                                 pain.line(int(x_old),
4698                                           y_offset + row_ptr->baseline() - row_ptr->ascent_of_text(),
4699                                           int(x),
4700                                           y_offset + row_ptr->baseline() - row_ptr->ascent_of_text(),
4701                                           LColor::tableline,
4702                                           on_off ? Painter::line_onoffdash : Painter::line_solid);
4703                         on_off = !row_ptr->par()->table->BottomLine(cell);
4704                         if ((!on_off && !row_ptr->par()->table->RowHasContRow(cell)) ||
4705                             row_ptr->par()->table->VeryLastRow(cell))
4706
4707                                 pain.line(int(x_old),
4708                                           y_offset + y_bottom - 1,
4709                                           int(x),
4710                                           y_offset + y_bottom - 1,
4711                                           LColor::tableline,
4712                                           on_off ? Painter::line_onoffdash : Painter::line_solid);
4713
4714                         on_off = !row_ptr->par()->table->LeftLine(cell);
4715
4716                         pain.line(int(x_old),
4717                                   y_offset + row_ptr->baseline() - row_ptr->ascent_of_text(),
4718                                   int(x_old),
4719                                   y_offset + y_bottom - 1,
4720                                   LColor::tableline,
4721                                   on_off ? Painter::line_onoffdash : Painter::line_solid);
4722
4723                         on_off = !row_ptr->par()->table->RightLine(cell);
4724
4725                         pain.line(int(x) - row_ptr->par()->table->AdditionalWidth(cell),
4726                                   y_offset + row_ptr->baseline() - row_ptr->ascent_of_text(),
4727                                   int(x) - row_ptr->par()->table->AdditionalWidth(cell),
4728                                   y_offset + y_bottom - 1,
4729                                   LColor::tableline,
4730                                   on_off ? Painter::line_onoffdash : Painter::line_solid);
4731                 }
4732         } else {
4733                 /* table stuff -- end*/
4734 #endif
4735                 LyXParagraph::size_type main_body =
4736                         BeginningOfMainBody(bview->buffer(), row_ptr->par());
4737                 if (main_body > 0 &&
4738                     (main_body-1 > last ||
4739                      !row_ptr->par()->IsLineSeparator(main_body - 1)))
4740                         main_body = 0;
4741
4742                 while (vpos <= last)  {
4743                         pos = vis2log(vpos);
4744                         if (main_body > 0 && pos == main_body - 1) {
4745                                 x += fill_label_hfill
4746                                         + lyxfont::width(layout.labelsep,
4747                                                          GetFont(bview->buffer(),
4748                                                                  row_ptr->par(), -2))
4749                                         - SingleWidth(bview,
4750                                                       row_ptr->par(),
4751                                                       main_body - 1);
4752                         }
4753
4754                         if (row_ptr->par() ->IsHfill(pos)) {
4755                                 x += 1;
4756                                 pain.line(int(x),
4757                                           y_offset + row_ptr->baseline() - DefaultHeight() / 2,
4758                                           int(x),
4759                                           y_offset + row_ptr->baseline(),
4760                                           LColor::vfillline);
4761
4762                                 if (HfillExpansion(bview->buffer(),
4763                                                    row_ptr, pos)) {
4764                                         if (pos >= main_body) {
4765                                                 pain.line(int(x),
4766                                                           y_offset + row_ptr->baseline() - DefaultHeight() / 4,
4767                                                           int(x + fill_hfill),
4768                                                           y_offset + row_ptr->baseline() - DefaultHeight() / 4,
4769                                                           LColor::vfillline,
4770                                                           Painter::line_onoffdash);
4771                                                 x += fill_hfill;
4772                                         } else {
4773                                                 pain.line(int(x),
4774                                                           y_offset + row_ptr->baseline() - DefaultHeight() / 4,
4775                                                           int(x + fill_label_hfill),
4776                                                           y_offset + row_ptr->baseline() - DefaultHeight() / 4,
4777                                                           LColor::vfillline,
4778                                                           Painter::line_onoffdash);
4779
4780                                                 x += fill_label_hfill;
4781                                         }
4782                                         pain.line(int(x),
4783                                                   y_offset + row_ptr->baseline() - DefaultHeight() / 2,
4784                                                   int(x),
4785                                                   y_offset + row_ptr->baseline(),
4786                                                   LColor::vfillline);
4787                                 }
4788                                 x += 2;
4789                                 ++vpos;
4790                         } else if (row_ptr->par()->IsSeparator(pos)) {
4791                                 x += SingleWidth(bview,
4792                                                  row_ptr->par(), pos);
4793                                 if (pos >= main_body)
4794                                         x += fill_separator;
4795                                 ++vpos;
4796                         } else
4797                                 draw(bview, row_ptr, vpos, y_offset, x, clear_area);
4798                 }
4799 #ifndef NEW_TABULAR
4800         }
4801 #endif
4802 }
4803
4804
4805 int LyXText::DefaultHeight() const
4806 {
4807         LyXFont font(LyXFont::ALL_SANE);
4808         return int(lyxfont::maxAscent(font) + lyxfont::maxDescent(font) * 1.5);
4809 }
4810
4811
4812 /* returns the column near the specified x-coordinate of the row
4813 * x is set to the real beginning of this column  */
4814 int LyXText::GetColumnNearX(BufferView * bview, Row * row, int & x,
4815                             bool & boundary) const
4816 {
4817         float tmpx = 0.0;
4818         float fill_separator, fill_hfill, fill_label_hfill;
4819
4820         PrepareToPrint(bview, row, tmpx, fill_separator,
4821                        fill_hfill, fill_label_hfill);
4822
4823         LyXParagraph::size_type vc = row->pos();
4824         LyXParagraph::size_type last = RowLastPrintable(row);
4825         LyXParagraph::size_type c = 0;
4826         LyXLayout const & layout =
4827                 textclasslist.Style(bview->buffer()->params.textclass,
4828                                     row->par()->GetLayout());
4829         bool left_side = false;
4830
4831 #ifndef NEW_TABULAR
4832         /* table stuff -- begin */
4833         if (row->par()->table) {
4834                 //the last row doesn't need a newline at the end
4835                 if (row->next() && row->next()->par() == row->par()
4836                     && row->par()->IsNewline(last))
4837                         --last;
4838                 int cell = NumberOfCell(row->par(), row->pos());
4839                 float cell_x = tmpx + row->par()->table->WidthOfColumn(cell);
4840                 tmpx += row->par()->table->GetBeginningOfTextInCell(cell);
4841                 float last_tmpx = tmpx;
4842                 while (vc <= last && tmpx <= x) {
4843                        c = vis2log(vc);
4844                        last_tmpx = tmpx;
4845                        if (row->par()->IsNewline(c)) {
4846                                if (cell_x <= x){
4847                                        ++cell;
4848                                        tmpx = cell_x + row->par()->table->GetBeginningOfTextInCell(cell);
4849                                        cell_x += row->par()->table->WidthOfColumn(cell);
4850                                        ++vc;
4851                                } else
4852                                        break;
4853                        } else {
4854                                tmpx += SingleWidth(bview, row->par(), c);
4855                                ++vc;
4856                        }
4857                 }
4858                 if (vc > row->pos() && !row->par()->IsNewline(c) &&
4859                     (tmpx + last_tmpx) / 2 > x) {
4860                         tmpx = last_tmpx;
4861                         left_side = true;
4862                 }
4863         } else {
4864                 /* table stuff -- end*/
4865 #endif
4866                 LyXParagraph::size_type
4867                         main_body = BeginningOfMainBody(bview->buffer(), row->par());
4868                 float last_tmpx = tmpx;
4869
4870                 if (main_body > 0 &&
4871                     (main_body-1 > last ||
4872                      !row->par()->IsLineSeparator(main_body - 1)))
4873                         main_body = 0;
4874
4875                 while (vc <= last && tmpx <= x) {
4876                         c = vis2log(vc);
4877                         last_tmpx = tmpx;
4878                         if (main_body > 0 && c == main_body-1) {
4879                                 tmpx += fill_label_hfill +
4880                                         lyxfont::width(layout.labelsep,
4881                                                GetFont(bview->buffer(), row->par(), -2));
4882                                 if (row->par()->IsLineSeparator(main_body - 1))
4883                                         tmpx -= SingleWidth(bview, row->par(), main_body-1);
4884                         }
4885
4886                         if (HfillExpansion(bview->buffer(), row, c)) {
4887                                 x += SingleWidth(bview, row->par(), c);
4888                                 if (c >= main_body)
4889                                         tmpx += fill_hfill;
4890                                 else
4891                                         tmpx += fill_label_hfill;
4892                         }
4893                         else if (row->par()->IsSeparator(c)) {
4894                                 tmpx += SingleWidth(bview, row->par(), c);
4895                                 if (c >= main_body)
4896                                         tmpx+= fill_separator;
4897                         } else
4898                                 tmpx += SingleWidth(bview, row->par(), c);
4899                         ++vc;
4900                 }
4901
4902                 if (vc > row->pos() && (tmpx + last_tmpx) / 2 > x) {
4903                         tmpx = last_tmpx;
4904                         left_side = true;
4905                 }
4906 #ifndef NEW_TABULAR
4907         }
4908 #endif
4909
4910         if (vc > last + 1)  // This shouldn't happen.
4911                 vc = last + 1;
4912
4913         boundary = false;
4914 #if 0 // currently unused
4915         bool lastrow = (!row->next() || row->next()->par() != row->par());
4916         bool rtl = (lastrow)
4917                 ? row->par()->isRightToLeftPar(bview->buffer()->params)
4918                 : false;
4919 #endif
4920
4921         if (row->pos() > last)  // Row is empty?
4922                 c = row->pos();
4923 #warning This is wrong, please have a look Dekel (Jug)
4924 #if 0
4925         else if (lastrow &&
4926                  ( (rtl && vc == row->pos()&& x < tmpx - 5) ||
4927                    (!rtl && vc == last + 1 && x > tmpx + 5) ))
4928                 c = last + 1;
4929 #endif
4930         else if (vc == row->pos()
4931 #ifndef NEW_TABULAR
4932                  || (row->par()->table
4933                   && vc <= last && row->par()->IsNewline(vc-1))
4934 #endif
4935                 ) {
4936                 c = vis2log(vc);
4937                 if (bidi_level(c) % 2 == 1)
4938                         ++c;
4939         } else {
4940                 c = vis2log(vc - 1);
4941                 bool rtl = (bidi_level(c) % 2 == 1);
4942                 if (left_side == rtl) {
4943                         ++c;
4944                         boundary = IsBoundary(bview->buffer(), row->par(), c);
4945                 }
4946         }
4947
4948         if (
4949 #ifndef NEW_TABULAR
4950                 !row->par()->table &&
4951 #endif
4952                 row->pos() <= last && c > last
4953                 && row->par()->IsNewline(last)) {
4954                 if (bidi_level(last) % 2 == 0)
4955                         tmpx -= SingleWidth(bview, row->par(), last);
4956                 else
4957                         tmpx += SingleWidth(bview, row->par(), last);
4958                 c = last;
4959         }
4960
4961         c -= row->pos();
4962         x = int(tmpx);
4963         return c;
4964 }
4965
4966
4967 #ifndef NEW_INSETS
4968 /* turn the selection into a new environment. If there is no selection,
4969 * create an empty environment */
4970 void LyXText::InsertFootnoteEnvironment(BufferView * bview,
4971                                         LyXParagraph::footnote_kind kind)
4972 {
4973    /* no footnoteenvironment in a footnoteenvironment */
4974    if (cursor.par()->footnoteflag != LyXParagraph::NO_FOOTNOTE) {
4975       WriteAlert(_("Impossible operation"),
4976                  _("You can't insert a float in a float!"),
4977                  _("Sorry."));
4978      return;
4979    }
4980    /* no marginpars in minipages */
4981    if (kind == LyXParagraph::MARGIN
4982       && cursor.par()->pextra_type == LyXParagraph::PEXTRA_MINIPAGE) {
4983       WriteAlert(_("Impossible operation"),
4984                  _("You can't insert a marginpar in a minipage!"),
4985                  _("Sorry."));
4986       return;
4987    }
4988
4989    /* this doesnt make sense, if there is no selection */
4990    bool dummy_selection = false;
4991    if (!selection) {
4992       sel_start_cursor = cursor;       /* dummy selection  */
4993       sel_end_cursor = cursor;
4994       dummy_selection = true;
4995    }
4996
4997    LyXParagraph * tmppar;
4998
4999 #ifndef NEW_TABULAR
5000    if (sel_start_cursor.par()->table || sel_end_cursor.par()->table){
5001       WriteAlert(_("Impossible operation"), _("Cannot cut table."), _("Sorry."));
5002       return;
5003    }
5004 #endif
5005    /* a test to make sure there is not already a footnote
5006     * in the selection. */
5007
5008    tmppar = sel_start_cursor.par()->ParFromPos(sel_start_cursor.pos());
5009
5010    while (tmppar != sel_end_cursor.par()->ParFromPos(sel_end_cursor.pos()) &&
5011           tmppar->footnoteflag == LyXParagraph::NO_FOOTNOTE)
5012      tmppar = tmppar->next;
5013
5014    if (tmppar != sel_end_cursor.par()->ParFromPos(sel_end_cursor.pos())
5015        || tmppar->footnoteflag != LyXParagraph::NO_FOOTNOTE) {
5016       WriteAlert(_("Impossible operation"),
5017                  _("Float would include float!"),
5018                  _("Sorry."));
5019       return;
5020    }
5021
5022    /* ok we have a selection. This is always between sel_start_cursor
5023     * and sel_end cursor */
5024
5025    SetUndo(bview->buffer(), Undo::FINISH,
5026            sel_start_cursor.par()->ParFromPos(sel_start_cursor.pos())->previous,
5027            sel_end_cursor.par()->ParFromPos(sel_end_cursor.pos())->next);
5028
5029    if (sel_end_cursor.pos() > 0
5030        && sel_end_cursor.par()->IsLineSeparator(sel_end_cursor.pos() - 1))
5031            sel_end_cursor.pos(sel_end_cursor.pos() - 1);
5032    /* please break before a space at the end */
5033    if (sel_start_cursor.par() == sel_end_cursor.par()
5034        && sel_start_cursor.pos() > sel_end_cursor.pos())
5035            sel_start_cursor.pos(sel_start_cursor.pos() - 1);
5036
5037    sel_end_cursor.par()->BreakParagraphConservative(bview->buffer()->params, sel_end_cursor.pos());
5038
5039    sel_end_cursor.par(sel_end_cursor.par()->Next());
5040    sel_end_cursor.pos(0);
5041
5042    // don't forget to insert a dummy layout paragraph if necessary
5043    if (sel_start_cursor.par()->GetLayout() != sel_end_cursor.par()->layout){
5044      sel_end_cursor.par()->BreakParagraphConservative(bview->buffer()->params, 0);
5045      sel_end_cursor.par()->layout = LYX_DUMMY_LAYOUT;
5046      sel_end_cursor.par(sel_end_cursor.par()->next);
5047    }
5048    else
5049      sel_end_cursor.par()->layout = LYX_DUMMY_LAYOUT;
5050
5051    cursor = sel_end_cursor;
5052
5053    /* please break behind a space, if there is one. The space should
5054     * be erased too */
5055    if (sel_start_cursor.pos() > 0
5056        && sel_start_cursor.par()->IsLineSeparator(sel_start_cursor.pos() - 1))
5057      sel_start_cursor.pos(sel_start_cursor.pos() - 1);
5058    if (sel_start_cursor.par()->IsLineSeparator(sel_start_cursor.pos())) {
5059       sel_start_cursor.par()->Erase(sel_start_cursor.pos());
5060    }
5061
5062    sel_start_cursor.par()->BreakParagraphConservative(bview->buffer()->params,
5063                                                     sel_start_cursor.pos());
5064    tmppar = sel_start_cursor.par()->Next();
5065
5066    if (dummy_selection) {
5067            tmppar->Clear();
5068            if (kind == LyXParagraph::TAB
5069                || kind == LyXParagraph::FIG
5070                || kind == LyXParagraph::WIDE_TAB
5071                || kind == LyXParagraph::WIDE_FIG
5072                || kind == LyXParagraph::ALGORITHM) {
5073                    pair<bool, LyXTextClass::size_type> lres =
5074                            textclasslist.NumberOfLayout(bview->buffer()->params.textclass,
5075                                                         "Caption");
5076                    LyXTextClass::size_type lay;
5077                    if (lres.first) {
5078                            // layout fount
5079                            lay = lres.second;
5080                    } else {
5081                            // layout not found
5082                            lay = 0; // use default layout "Standard" (0)
5083                    }
5084                    tmppar->SetLayout(bview->buffer()->params, lay);
5085            }
5086    } else {
5087      if (sel_start_cursor.pos() > 0) {
5088        /* the footnote-environment should begin with a standard layout.
5089         * Imagine you insert a footnote within an enumeration, you
5090         * certainly do not want an enumerated footnote! */
5091        tmppar->Clear();
5092      } else {
5093        /* this is a exception the user would sometimes expect, I hope */
5094        sel_start_cursor.par()->Clear();
5095      }
5096    }
5097
5098    while (tmppar != sel_end_cursor.par()) {
5099       tmppar->footnoteflag = LyXParagraph::OPEN_FOOTNOTE;
5100       tmppar->footnotekind = kind;
5101       tmppar = tmppar->Next();
5102    }
5103
5104    RedoParagraphs(bview, sel_start_cursor, sel_end_cursor.par()->Next());
5105
5106    SetCursor(bview, sel_start_cursor.par()->Next(), 0);
5107
5108    ClearSelection();
5109 }
5110 #endif
5111
5112
5113 // returns pointer to a specified row
5114 Row * LyXText::GetRow(LyXParagraph * par,
5115                       LyXParagraph::size_type pos, long & y) const
5116 {
5117         Row * tmprow = firstrow;
5118         y = 0;
5119
5120         // find the first row of the specified paragraph
5121         while (tmprow->next() && tmprow->par() != par) {
5122                 y += tmprow->height();
5123                 tmprow = tmprow->next();
5124         }
5125
5126         // now find the wanted row
5127         while (tmprow->pos() < pos
5128                && tmprow->next()
5129                && tmprow->next()->par() == par
5130                && tmprow->next()->pos() <= pos) {
5131                 y += tmprow->height();
5132                 tmprow = tmprow->next();
5133         }
5134
5135         return tmprow;
5136 }