src/text2.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1995 Matthias Ettrich
   7  *           Copyright 1995-2001 The LyX Team.
   8  *
   9  * ====================================================== */
  10
  11 #include <config.h>
  12
  13 #ifdef __GNUG__
  14 #pragma implementation "lyxtext.h"
  15 #endif
  16
  17 #include "lyxtext.h"
  18 #include "LString.h"
  19 #include "paragraph.h"
  20 #include "lyxtextclasslist.h"
  21 #include "LyXView.h"
  22 #include "undo_funcs.h"
  23 #include "buffer.h"
  24 #include "bufferparams.h"
  25 #include "gettext.h"
  26 #include "BufferView.h"
  27 #include "LyXView.h"
  28 #include "CutAndPaste.h"
  29 #include "Painter.h"
  30 #include "font.h"
  31 #include "debug.h"
  32 #include "lyxrc.h"
  33 #include "lyxrow.h"
  34 #include "FloatList.h"
  35 #include "language.h"
  36 #include "ParagraphParameters.h"
  37
  38 #include "insets/inseterror.h"
  39 #include "insets/insetbib.h"
  40 #include "insets/insetspecialchar.h"
  41 #include "insets/insettext.h"
  42 #include "insets/insetfloat.h"
  43
  44 #include "support/LAssert.h"
  45 #include "support/textutils.h"
  46 #include "support/lstrings.h"
  47
  48 using std::vector;
  49 using std::copy;
  50 using std::find;
  51 using std::endl;
  52 using std::find;
  53 using std::pair;
  54 using lyx::pos_type;
  55
  56
  57 LyXText::LyXText(BufferView * bv)
  58         : number_of_rows(0), height(0), width(0), first_y(0),
  59           bv_owner(bv), inset_owner(0), the_locking_inset(0),
  60           need_break_row(0), refresh_y(0), refresh_row(0),
  61           status_(LyXText::UNCHANGED), firstrow(0), lastrow(0)
  62 {}
  63
  64
  65 LyXText::LyXText(InsetText * inset)
  66         :  number_of_rows(0),  height(0), width(0), first_y(0),
  67            bv_owner(0), inset_owner(inset), the_locking_inset(0),
  68            need_break_row(0), refresh_y(0), refresh_row(0),
  69            status_(LyXText::UNCHANGED), firstrow(0), lastrow(0)
  70 {}
  71
  72
  73 void LyXText::init(BufferView * bview, bool reinit)
  74 {
  75         if (reinit) {
  76                 // Delete all rows, this does not touch the paragraphs!
  77                 Row * tmprow = firstrow;
  78                 while (firstrow) {
  79                         tmprow = firstrow->next();
  80                         delete firstrow;
  81                         firstrow = tmprow;
  82                 }
  83
  84                 lastrow = 0;
  85                 refresh_row = 0;
  86                 need_break_row = 0;
  87                 width = height = 0;
  88                 copylayouttype.erase();
  89                 number_of_rows = first_y = refresh_y = 0;
  90                 status_ = LyXText::UNCHANGED;
  91         } else if (firstrow)
  92                 return;
  93
  94         Paragraph * par = ownerParagraph();
  95         current_font = getFont(bview->buffer(), par, 0);
  96
  97         while (par) {
  98                 insertParagraph(bview, par, lastrow);
  99                 par = par->next();
 100         }
 101         setCursorIntern(bview, firstrow->par(), 0);
 102         selection.cursor = cursor;
 103 }
 104
 105
 106 LyXText::~LyXText()
 107 {
 108         // Delete all rows, this does not touch the paragraphs!
 109         Row * tmprow = firstrow;
 110         while (firstrow) {
 111                 tmprow = firstrow->next();
 112                 delete firstrow;
 113                 firstrow = tmprow;
 114         }
 115 }
 116
 117
 118 namespace {
 119
 120 LyXFont const realizeFont(LyXFont const & font,
 121                           Buffer const * buf,
 122                           Paragraph * par)
 123 {
 124         LyXFont tmpfont(font);
 125         Paragraph::depth_type par_depth = par->getDepth();
 126
 127         // Resolve against environment font information
 128         while (par && par_depth && !tmpfont.resolved()) {
 129                 par = par->outerHook();
 130                 if (par) {
 131 #ifndef INHERIT_LANGUAGE
 132                         tmpfont.realize(textclasslist[buf->params.textclass][
 133                                               par->layout()].font);
 134 #else
 135                         tmpfont.realize(textclasslist.
 136                                         Style(buf->params.textclass,
 137                                               par->layout()).font,
 138                                         buf->params.language);
 139 #endif
 140                         par_depth = par->getDepth();
 141                 }
 142         }
 143
 144 #ifndef INHERIT_LANGUAGE
 145         tmpfont.realize(textclasslist[buf->params.textclass].defaultfont());
 146 #else
 147         tmpfont.realize(textclasslist[buf->params.textclass].defaultfont(),
 148                         buf->params.language);
 149 #endif
 150
 151         return tmpfont;
 152 }
 153
 154 }
 155
 156
 157 // Gets the fully instantiated font at a given position in a paragraph
 158 // Basically the same routine as Paragraph::getFont() in paragraph.C.
 159 // The difference is that this one is used for displaying, and thus we
 160 // are allowed to make cosmetic improvements. For instance make footnotes
 161 // smaller. (Asger)
 162 // If position is -1, we get the layout font of the paragraph.
 163 // If position is -2, we get the font of the manual label of the paragraph.
 164 LyXFont const LyXText::getFont(Buffer const * buf, Paragraph * par,
 165                                pos_type pos) const
 166 {
 167         lyx::Assert(pos >= 0);
 168
 169         LyXLayout const & layout =
 170                 textclasslist[buf->params.textclass][par->layout()];
 171
 172         Paragraph::depth_type par_depth = par->getDepth();
 173         // We specialize the 95% common case:
 174         if (!par_depth) {
 175                 if (layout.labeltype == LABEL_MANUAL
 176                     && pos < beginningOfMainBody(buf, par)) {
 177                         // 1% goes here
 178                         LyXFont f = par->getFontSettings(buf->params, pos);
 179                         if (par->inInset())
 180                                 par->inInset()->getDrawFont(f);
 181 #ifndef INHERIT_LANGUAGE
 182                         return f.realize(layout.reslabelfont);
 183 #else
 184                         return f.realize(layout.reslabelfont, buf->params.language);
 185 #endif
 186                 } else {
 187                         LyXFont f = par->getFontSettings(buf->params, pos);
 188                         if (par->inInset())
 189                                 par->inInset()->getDrawFont(f);
 190 #ifndef INHERIT_LANGUAGE
 191                         return f.realize(layout.resfont);
 192 #else
 193                         return f.realize(layout.resfont, buf->params.language);
 194 #endif
 195                 }
 196         }
 197
 198         // The uncommon case need not be optimized as much
 199
 200         LyXFont layoutfont;
 201
 202         if (pos < beginningOfMainBody(buf, par)) {
 203                 // 1% goes here
 204                 layoutfont = layout.labelfont;
 205         } else {
 206                 // 99% goes here
 207                 layoutfont = layout.font;
 208         }
 209
 210         LyXFont tmpfont = par->getFontSettings(buf->params, pos);
 211 #ifndef INHERIT_LANGUAGE
 212         tmpfont.realize(layoutfont);
 213 #else
 214         tmpfont.realize(layoutfont, buf->params.language);
 215 #endif
 216         if (par->inInset())
 217                 par->inInset()->getDrawFont(tmpfont);
 218
 219         return realizeFont(tmpfont, buf, par);
 220 }
 221
 222
 223 LyXFont const LyXText::getLayoutFont(Buffer const * buf, Paragraph * par) const
 224 {
 225         LyXLayout const & layout =
 226                 textclasslist[buf->params.textclass][par->layout()];
 227
 228         Paragraph::depth_type par_depth = par->getDepth();
 229
 230         if (!par_depth) {
 231                 return layout.resfont;
 232         }
 233
 234         return realizeFont(layout.font, buf, par);
 235 }
 236
 237
 238 LyXFont const LyXText::getLabelFont(Buffer const * buf, Paragraph * par) const
 239 {
 240         LyXLayout const & layout =
 241                 textclasslist[buf->params.textclass][par->layout()];
 242
 243         Paragraph::depth_type par_depth = par->getDepth();
 244
 245         if (!par_depth) {
 246                 return layout.reslabelfont;
 247         }
 248
 249         return realizeFont(layout.labelfont, buf, par);
 250 }
 251
 252
 253 void LyXText::setCharFont(BufferView * bv, Paragraph * par,
 254                           pos_type pos, LyXFont const & fnt,
 255                           bool toggleall)
 256 {
 257         Buffer const * buf = bv->buffer();
 258         LyXFont font = getFont(buf, par, pos);
 259         font.update(fnt, buf->params.language, toggleall);
 260         // Let the insets convert their font
 261         if (par->isInset(pos)) {
 262                 Inset * inset = par->getInset(pos);
 263                 if (isEditableInset(inset)) {
 264                         UpdatableInset * uinset =
 265                                 static_cast<UpdatableInset *>(inset);
 266                         uinset->setFont(bv, fnt, toggleall, true);
 267                 }
 268         }
 269
 270         // Plug thru to version below:
 271         setCharFont(buf, par, pos, font);
 272 }
 273
 274
 275 void LyXText::setCharFont(Buffer const * buf, Paragraph * par,
 276                           pos_type pos, LyXFont const & fnt)
 277 {
 278         LyXFont font(fnt);
 279
 280         LyXTextClass const & tclass = textclasslist[buf->params.textclass];
 281         LyXLayout const & layout = tclass[par->layout()];
 282
 283         // Get concrete layout font to reduce against
 284         LyXFont layoutfont;
 285
 286         if (pos < beginningOfMainBody(buf, par))
 287                 layoutfont = layout.labelfont;
 288         else
 289                 layoutfont = layout.font;
 290
 291         // Realize against environment font information
 292         if (par->getDepth()) {
 293                 Paragraph * tp = par;
 294                 while (!layoutfont.resolved() && tp && tp->getDepth()) {
 295                         tp = tp->outerHook();
 296                         if (tp)
 297 #ifndef INHERIT_LANGUAGE
 298                                 layoutfont.realize(tclass[tp->layout()].font);
 299 #else
 300                                 layoutfont.realize(textclasslist.
 301                                                    Style(buf->params.textclass,
 302                                                          tp->layout()).font,
 303                                                    buf->params.language);
 304 #endif
 305                 }
 306         }
 307
 308 #ifndef INHERIT_LANGUAGE
 309         layoutfont.realize(tclass.defaultfont());
 310 #else
 311         layoutfont.realize(tclass.defaultfont(), buf->params.language);
 312 #endif
 313
 314         // Now, reduce font against full layout font
 315         font.reduce(layoutfont);
 316
 317         par->setFont(pos, font);
 318 }
 319
 320
 321 // inserts a new row behind the specified row, increments
 322 // the touched counters
 323 void LyXText::insertRow(Row * row, Paragraph * par,
 324                         pos_type pos) const
 325 {
 326         Row * tmprow = new Row;
 327         if (!row) {
 328                 tmprow->previous(0);
 329                 tmprow->next(firstrow);
 330                 firstrow = tmprow;
 331         } else {
 332                 tmprow->previous(row);
 333                 tmprow->next(row->next());
 334                 row->next(tmprow);
 335         }
 336
 337         if (tmprow->next())
 338                 tmprow->next()->previous(tmprow);
 339
 340         if (tmprow->previous())
 341                 tmprow->previous()->next(tmprow);
 342
 343
 344         tmprow->par(par);
 345         tmprow->pos(pos);
 346
 347         if (row == lastrow)
 348                 lastrow = tmprow;
 349         ++number_of_rows;
 350 }
 351
 352
 353 // removes the row and reset the touched counters
 354 void LyXText::removeRow(Row * row) const
 355 {
 356         Row * row_prev = row->previous();
 357         if (row->next())
 358                 row->next()->previous(row_prev);
 359         if (!row_prev) {
 360                 firstrow = row->next();
 361 //              lyx::Assert(firstrow);
 362         } else  {
 363                 row_prev->next(row->next());
 364         }
 365         if (row == lastrow) {
 366                 lyx::Assert(!row->next());
 367                 lastrow = row_prev;
 368         }
 369         if (refresh_row == row) {
 370                 refresh_row = row_prev ? row_prev : row->next();
 371                 // what about refresh_y, refresh_height
 372         }
 373
 374         height -= row->height(); // the text becomes smaller
 375
 376         delete row;
 377         --number_of_rows;       // one row less
 378 }
 379
 380
 381 // remove all following rows of the paragraph of the specified row.
 382 void LyXText::removeParagraph(Row * row) const
 383 {
 384         Paragraph * tmppar = row->par();
 385         row = row->next();
 386
 387         Row * tmprow;
 388         while (row && row->par() == tmppar) {
 389                 tmprow = row->next();
 390                 removeRow(row);
 391                 row = tmprow;
 392         }
 393 }
 394
 395
 396 // insert the specified paragraph behind the specified row
 397 void LyXText::insertParagraph(BufferView * bview, Paragraph * par,
 398                               Row * row) const
 399 {
 400         insertRow(row, par, 0);            /* insert a new row, starting
 401                                             * at postition 0 */
 402
 403         setCounter(bview->buffer(), par);  // set the counters
 404
 405         // and now append the whole paragraph behind the new row
 406         if (!row) {
 407                 firstrow->height(0);
 408                 appendParagraph(bview, firstrow);
 409         } else {
 410                 row->next()->height(0);
 411                 appendParagraph(bview, row->next());
 412         }
 413 }
 414
 415
 416 Inset * LyXText::getInset() const
 417 {
 418         Inset * inset = 0;
 419         if (cursor.pos() == 0 && cursor.par()->bibkey) {
 420                 inset = cursor.par()->bibkey;
 421         } else if (cursor.pos() < cursor.par()->size()
 422                    && cursor.par()->isInset(cursor.pos())) {
 423                 inset = cursor.par()->getInset(cursor.pos());
 424         }
 425         return inset;
 426 }
 427
 428
 429 void LyXText::toggleInset(BufferView * bview)
 430 {
 431         Inset * inset = getInset();
 432         // is there an editable inset at cursor position?
 433         if (!isEditableInset(inset)) {
 434                 // No, try to see if we are inside a collapsable inset
 435                 if (inset_owner && inset_owner->owner()
 436                     && inset_owner->owner()->isOpen()) {
 437                         bview->unlockInset(static_cast<UpdatableInset *>(inset_owner->owner()));
 438                         inset_owner->owner()->close(bview);
 439                 }
 440                 return;
 441         }
 442         //bview->owner()->message(inset->editMessage());
 443
 444         // do we want to keep this?? (JMarc)
 445         if (!isHighlyEditableInset(inset))
 446                 setCursorParUndo(bview);
 447
 448         if (inset->isOpen()) {
 449                 inset->close(bview);
 450         } else {
 451                 inset->open(bview);
 452         }
 453 #if 0
 454         inset->open(bview, !inset->isOpen());
 455 #endif
 456 }
 457
 458
 459 /* used in setlayout */
 460 // Asger is not sure we want to do this...
 461 void LyXText::makeFontEntriesLayoutSpecific(Buffer const * buf,
 462                                             Paragraph * par)
 463 {
 464         LyXLayout const & layout =
 465                 textclasslist[buf->params.textclass][par->layout()];
 466
 467         LyXFont layoutfont;
 468         for (pos_type pos = 0; pos < par->size(); ++pos) {
 469                 if (pos < beginningOfMainBody(buf, par))
 470                         layoutfont = layout.labelfont;
 471                 else
 472                         layoutfont = layout.font;
 473
 474                 LyXFont tmpfont = par->getFontSettings(buf->params, pos);
 475                 tmpfont.reduce(layoutfont);
 476                 par->setFont(pos, tmpfont);
 477         }
 478 }
 479
 480
 481 Paragraph * LyXText::setLayout(BufferView * bview,
 482                                LyXCursor & cur, LyXCursor & sstart_cur,
 483                                LyXCursor & send_cur,
 484                                string const & layout)
 485 {
 486         Paragraph * endpar = send_cur.par()->next();
 487         Paragraph * undoendpar = endpar;
 488
 489         if (endpar && endpar->getDepth()) {
 490                 while (endpar && endpar->getDepth()) {
 491                         endpar = endpar->next();
 492                         undoendpar = endpar;
 493                 }
 494         } else if (endpar) {
 495                 endpar = endpar->next(); // because of parindents etc.
 496         }
 497
 498         setUndo(bview, Undo::EDIT, sstart_cur.par(), undoendpar);
 499
 500         // ok we have a selection. This is always between sstart_cur
 501         // and sel_end cursor
 502         cur = sstart_cur;
 503
 504         LyXLayout const & lyxlayout =
 505                 textclasslist[bview->buffer()->params.textclass][layout];
 506
 507         do {
 508                 cur.par()->applyLayout(layout);
 509                 makeFontEntriesLayoutSpecific(bview->buffer(), cur.par());
 510                 Paragraph * fppar = cur.par();
 511                 fppar->params().spaceTop(lyxlayout.fill_top ?
 512                                          VSpace(VSpace::VFILL)
 513                                          : VSpace(VSpace::NONE));
 514                 fppar->params().spaceBottom(lyxlayout.fill_bottom ?
 515                                             VSpace(VSpace::VFILL)
 516                                             : VSpace(VSpace::NONE));
 517                 if (lyxlayout.margintype == MARGIN_MANUAL)
 518                         cur.par()->setLabelWidthString(lyxlayout.labelstring());
 519                 if (lyxlayout.labeltype != LABEL_BIBLIO
 520                     && fppar->bibkey) {
 521                         delete fppar->bibkey;
 522                         fppar->bibkey = 0;
 523                 }
 524                 if (cur.par() != send_cur.par())
 525                         cur.par(cur.par()->next());
 526         } while (cur.par() != send_cur.par());
 527
 528         return endpar;
 529 }
 530
 531
 532 // set layout over selection and make a total rebreak of those paragraphs
 533 void LyXText::setLayout(BufferView * bview, string const & layout)
 534 {
 535         LyXCursor tmpcursor = cursor;  /* store the current cursor  */
 536
 537         // if there is no selection just set the layout
 538         // of the current paragraph  */
 539         if (!selection.set()) {
 540                 selection.start = cursor;  // dummy selection
 541                 selection.end = cursor;
 542         }
 543         Paragraph * endpar = setLayout(bview, cursor, selection.start,
 544                                        selection.end, layout);
 545         redoParagraphs(bview, selection.start, endpar);
 546
 547         // we have to reset the selection, because the
 548         // geometry could have changed
 549         setCursor(bview, selection.start.par(),
 550                   selection.start.pos(), false);
 551         selection.cursor = cursor;
 552         setCursor(bview, selection.end.par(), selection.end.pos(), false);
 553         updateCounters(bview, cursor.row());
 554         clearSelection();
 555         setSelection(bview);
 556         setCursor(bview, tmpcursor.par(), tmpcursor.pos(), true);
 557 }
 558
 559
 560 // increment depth over selection and
 561 // make a total rebreak of those paragraphs
 562 void  LyXText::incDepth(BufferView * bview)
 563 {
 564         // If there is no selection, just use the current paragraph
 565         if (!selection.set()) {
 566                 selection.start = cursor; // dummy selection
 567                 selection.end = cursor;
 568         }
 569
 570         // We end at the next paragraph with depth 0
 571         Paragraph * endpar = selection.end.par()->next();
 572
 573         Paragraph * undoendpar = endpar;
 574
 575         if (endpar && endpar->getDepth()) {
 576                 while (endpar && endpar->getDepth()) {
 577                         endpar = endpar->next();
 578                         undoendpar = endpar;
 579                 }
 580         } else if (endpar) {
 581                 endpar = endpar->next(); // because of parindents etc.
 582         }
 583
 584         setUndo(bview, Undo::EDIT,
 585                 selection.start.par(), undoendpar);
 586
 587         LyXCursor tmpcursor = cursor; // store the current cursor
 588
 589         // ok we have a selection. This is always between sel_start_cursor
 590         // and sel_end cursor
 591         cursor = selection.start;
 592
 593         bool anything_changed = false;
 594
 595         LyXTextClass const & tclass =
 596                 textclasslist[bview->buffer()->params.textclass];
 597
 598         while (true) {
 599                 // NOTE: you can't change the depth of a bibliography entry
 600                 if (tclass[cursor.par()->layout()].labeltype != LABEL_BIBLIO) {
 601                         Paragraph * prev = cursor.par()->previous();
 602
 603                         if (prev) {
 604                                 if (cursor.par()->getDepth()
 605                                     < prev->getMaxDepthAfter(bview->buffer())){
 606                                         cursor.par()->params().depth(cursor.par()->getDepth() + 1);
 607                                         anything_changed = true;
 608                                 }
 609                         }
 610                 }
 611                 if (cursor.par() == selection.end.par())
 612                         break;
 613                 cursor.par(cursor.par()->next());
 614         }
 615
 616         // if nothing changed set all depth to 0
 617         if (!anything_changed) {
 618                 cursor = selection.start;
 619                 while (cursor.par() != selection.end.par()) {
 620                         cursor.par()->params().depth(0);
 621                         cursor.par(cursor.par()->next());
 622                 }
 623                 cursor.par()->params().depth(0);
 624         }
 625
 626         redoParagraphs(bview, selection.start, endpar);
 627
 628         // we have to reset the selection, because the
 629         // geometry could have changed
 630         setCursor(bview, selection.start.par(), selection.start.pos());
 631         selection.cursor = cursor;
 632         setCursor(bview, selection.end.par(), selection.end.pos());
 633         updateCounters(bview, cursor.row());
 634         clearSelection();
 635         setSelection(bview);
 636         setCursor(bview, tmpcursor.par(), tmpcursor.pos());
 637 }
 638
 639
 640 // decrement depth over selection and
 641 // make a total rebreak of those paragraphs
 642 void  LyXText::decDepth(BufferView * bview)
 643 {
 644         // if there is no selection just set the layout
 645         // of the current paragraph
 646         if (!selection.set()) {
 647                 selection.start = cursor; // dummy selection
 648                 selection.end = cursor;
 649         }
 650         Paragraph * endpar = selection.end.par()->next();
 651         Paragraph * undoendpar = endpar;
 652
 653         if (endpar && endpar->getDepth()) {
 654                 while (endpar && endpar->getDepth()) {
 655                         endpar = endpar->next();
 656                         undoendpar = endpar;
 657                 }
 658         } else if (endpar) {
 659                 endpar = endpar->next(); // because of parindents etc.
 660         }
 661
 662         setUndo(bview, Undo::EDIT,
 663                 selection.start.par(), undoendpar);
 664
 665         LyXCursor tmpcursor = cursor; // store the current cursor
 666
 667         // ok we have a selection. This is always between sel_start_cursor
 668         // and sel_end cursor
 669         cursor = selection.start;
 670
 671         while (true) {
 672                 if (cursor.par()->params().depth()) {
 673                         cursor.par()->params()
 674                                 .depth(cursor.par()->params().depth() - 1);
 675                 }
 676                 if (cursor.par() == selection.end.par()) {
 677                         break;
 678                 }
 679                 cursor.par(cursor.par()->next());
 680         }
 681
 682         redoParagraphs(bview, selection.start, endpar);
 683
 684         // we have to reset the selection, because the
 685         // geometry could have changed
 686         setCursor(bview, selection.start.par(),
 687                   selection.start.pos());
 688         selection.cursor = cursor;
 689         setCursor(bview, selection.end.par(), selection.end.pos());
 690         updateCounters(bview, cursor.row());
 691         clearSelection();
 692         setSelection(bview);
 693         setCursor(bview, tmpcursor.par(), tmpcursor.pos());
 694 }
 695
 696
 697 // set font over selection and make a total rebreak of those paragraphs
 698 void LyXText::setFont(BufferView * bview, LyXFont const & font, bool toggleall)
 699 {
 700         // if there is no selection just set the current_font
 701         if (!selection.set()) {
 702                 // Determine basis font
 703                 LyXFont layoutfont;
 704                 if (cursor.pos() < beginningOfMainBody(bview->buffer(),
 705                                                        cursor.par())) {
 706                         layoutfont = getLabelFont(bview->buffer(),
 707                                                   cursor.par());
 708                 } else {
 709                         layoutfont = getLayoutFont(bview->buffer(),
 710                                                    cursor.par());
 711                 }
 712                 // Update current font
 713                 real_current_font.update(font,
 714                                          bview->buffer()->params.language,
 715                                          toggleall);
 716
 717                 // Reduce to implicit settings
 718                 current_font = real_current_font;
 719                 current_font.reduce(layoutfont);
 720                 // And resolve it completely
 721 #ifndef INHERIT_LANGUAGE
 722                 real_current_font.realize(layoutfont);
 723 #else
 724                 real_current_font.realize(layoutfont,
 725                                           bview->buffer()->params.language);
 726 #endif
 727                 return;
 728         }
 729
 730         LyXCursor tmpcursor = cursor; // store the current cursor
 731
 732         // ok we have a selection. This is always between sel_start_cursor
 733         // and sel_end cursor
 734
 735         setUndo(bview, Undo::EDIT,
 736                 selection.start.par(), selection.end.par()->next());
 737         freezeUndo();
 738         cursor = selection.start;
 739         while (cursor.par() != selection.end.par() ||
 740                (cursor.pos() < selection.end.pos()))
 741         {
 742                 if (cursor.pos() < cursor.par()->size()) {
 743                         // an open footnote should behave
 744                         // like a closed one
 745                         setCharFont(bview, cursor.par(), cursor.pos(),
 746                                     font, toggleall);
 747                         cursor.pos(cursor.pos() + 1);
 748                 } else {
 749                         cursor.pos(0);
 750                         cursor.par(cursor.par()->next());
 751                 }
 752         }
 753         unFreezeUndo();
 754
 755         redoParagraphs(bview, selection.start, selection.end.par()->next());
 756
 757         // we have to reset the selection, because the
 758         // geometry could have changed, but we keep
 759         // it for user convenience
 760         setCursor(bview, selection.start.par(), selection.start.pos());
 761         selection.cursor = cursor;
 762         setCursor(bview, selection.end.par(), selection.end.pos());
 763         setSelection(bview);
 764         setCursor(bview, tmpcursor.par(), tmpcursor.pos(), true,
 765                   tmpcursor.boundary());
 766 }
 767
 768
 769 void LyXText::redoHeightOfParagraph(BufferView * bview, LyXCursor const & cur)
 770 {
 771         Row * tmprow = cur.row();
 772         int y = cur.y() - tmprow->baseline();
 773
 774         setHeightOfRow(bview, tmprow);
 775
 776         while (tmprow->previous()
 777                && tmprow->previous()->par() == tmprow->par()) {
 778                 tmprow = tmprow->previous();
 779                 y -= tmprow->height();
 780                 setHeightOfRow(bview, tmprow);
 781         }
 782
 783         // we can set the refreshing parameters now
 784         status(bview, LyXText::NEED_MORE_REFRESH);
 785         refresh_y = y;
 786         refresh_row = tmprow;
 787         setCursor(bview, cur.par(), cur.pos(), false, cursor.boundary());
 788 }
 789
 790
 791 void LyXText::redoDrawingOfParagraph(BufferView * bview, LyXCursor const & cur)
 792 {
 793         Row * tmprow = cur.row();
 794
 795         int y = cur.y() - tmprow->baseline();
 796         setHeightOfRow(bview, tmprow);
 797
 798         while (tmprow->previous()
 799                && tmprow->previous()->par() == tmprow->par())  {
 800                 tmprow = tmprow->previous();
 801                 y -= tmprow->height();
 802         }
 803
 804         // we can set the refreshing parameters now
 805         if (status_ == LyXText::UNCHANGED || y < refresh_y) {
 806                 refresh_y = y;
 807                 refresh_row = tmprow;
 808         }
 809         status(bview, LyXText::NEED_MORE_REFRESH);
 810         setCursor(bview, cur.par(), cur.pos());
 811 }
 812
 813
 814 // deletes and inserts again all paragaphs between the cursor
 815 // and the specified par
 816 // This function is needed after SetLayout and SetFont etc.
 817 void LyXText::redoParagraphs(BufferView * bview, LyXCursor const & cur,
 818                              Paragraph const * endpar) const
 819 {
 820         Row * tmprow2;
 821         Paragraph * tmppar = 0;
 822         Paragraph * first_phys_par = 0;
 823
 824         Row * tmprow = cur.row();
 825
 826         int y = cur.y() - tmprow->baseline();
 827
 828         if (!tmprow->previous()) {
 829                 // a trick/hack for UNDO
 830                 // This is needed because in an UNDO/REDO we could have changed
 831                 // the ownerParagrah() so the paragraph inside the row is NOT
 832                 // my really first par anymore. Got it Lars ;) (Jug 20011206)
 833                 first_phys_par = ownerParagraph();
 834         } else {
 835                 first_phys_par = tmprow->par();
 836                 while (tmprow->previous()
 837                        && tmprow->previous()->par() == first_phys_par)
 838                 {
 839                         tmprow = tmprow->previous();
 840                         y -= tmprow->height();
 841                 }
 842         }
 843
 844         // we can set the refreshing parameters now
 845         status(bview, LyXText::NEED_MORE_REFRESH);
 846         refresh_y = y;
 847         refresh_row = tmprow->previous();        /* the real refresh row will
 848                                                 be deleted, so I store
 849                                                 the previous here */
 850         // remove it
 851         if (tmprow->next())
 852                 tmppar = tmprow->next()->par();
 853         else
 854                 tmppar = 0;
 855         while (tmprow->next() && tmppar != endpar) {
 856                 removeRow(tmprow->next());
 857                 if (tmprow->next()) {
 858                         tmppar = tmprow->next()->par();
 859                 } else {
 860                         tmppar = 0;
 861                 }
 862         }
 863
 864         // remove the first one
 865         tmprow2 = tmprow;     /* this is because tmprow->previous()
 866                                  can be 0 */
 867         tmprow = tmprow->previous();
 868         removeRow(tmprow2);
 869
 870         tmppar = first_phys_par;
 871
 872         do {
 873                 if (tmppar) {
 874                         insertParagraph(bview, tmppar, tmprow);
 875                         if (!tmprow) {
 876                                 tmprow = firstrow;
 877                         }
 878                         while (tmprow->next()
 879                                && tmprow->next()->par() == tmppar) {
 880                                 tmprow = tmprow->next();
 881                         }
 882                         tmppar = tmppar->next();
 883                 }
 884         } while (tmppar && tmppar != endpar);
 885
 886         // this is because of layout changes
 887         if (refresh_row) {
 888                 refresh_y -= refresh_row->height();
 889                 setHeightOfRow(bview, refresh_row);
 890         } else {
 891                 refresh_row = firstrow;
 892                 refresh_y = 0;
 893                 setHeightOfRow(bview, refresh_row);
 894         }
 895
 896         if (tmprow && tmprow->next())
 897                 setHeightOfRow(bview, tmprow->next());
 898 }
 899
 900
 901 bool LyXText::fullRebreak(BufferView * bview)
 902 {
 903         if (!firstrow) {
 904                 init(bview);
 905                 return true;
 906         }
 907         if (need_break_row) {
 908                 breakAgain(bview, need_break_row);
 909                 need_break_row = 0;
 910                 return true;
 911         }
 912         return true;
 913 }
 914
 915
 916 // important for the screen
 917
 918
 919 /* the cursor set functions have a special mechanism. When they
 920  * realize, that you left an empty paragraph, they will delete it.
 921  * They also delete the corresponding row */
 922
 923 // need the selection cursor:
 924 void LyXText::setSelection(BufferView * bview)
 925 {
 926         bool const lsel = selection.set();
 927
 928         if (!selection.set()) {
 929                 last_sel_cursor = selection.cursor;
 930                 selection.start = selection.cursor;
 931                 selection.end = selection.cursor;
 932         }
 933
 934         selection.set(true);
 935
 936         // first the toggling area
 937         if (cursor.y() < last_sel_cursor.y()
 938             || (cursor.y() == last_sel_cursor.y()
 939                 && cursor.x() < last_sel_cursor.x())) {
 940                 toggle_end_cursor = last_sel_cursor;
 941                 toggle_cursor = cursor;
 942         } else {
 943                 toggle_end_cursor = cursor;
 944                 toggle_cursor = last_sel_cursor;
 945         }
 946
 947         last_sel_cursor = cursor;
 948
 949         // and now the whole selection
 950
 951         if (selection.cursor.par() == cursor.par())
 952                 if (selection.cursor.pos() < cursor.pos()) {
 953                         selection.end = cursor;
 954                         selection.start = selection.cursor;
 955                 } else {
 956                         selection.end = selection.cursor;
 957                         selection.start = cursor;
 958                 }
 959         else if (selection.cursor.y() < cursor.y() ||
 960                  (selection.cursor.y() == cursor.y()
 961                   && selection.cursor.x() < cursor.x())) {
 962                 selection.end = cursor;
 963                 selection.start = selection.cursor;
 964         }
 965         else {
 966                 selection.end = selection.cursor;
 967                 selection.start = cursor;
 968         }
 969
 970         // a selection with no contents is not a selection
 971         if (selection.start.par() == selection.end.par() &&
 972             selection.start.pos() == selection.end.pos())
 973                 selection.set(false);
 974
 975         if (inset_owner && (selection.set() || lsel))
 976                 inset_owner->setUpdateStatus(bview, InsetText::SELECTION);
 977 }
 978
 979
 980 string const LyXText::selectionAsString(Buffer const * buffer,
 981                                         bool label) const
 982 {
 983         if (!selection.set()) return string();
 984         string result;
 985
 986         // Special handling if the whole selection is within one paragraph
 987         if (selection.start.par() == selection.end.par()) {
 988                 result += selection.start.par()->asString(buffer,
 989                                                           selection.start.pos(),
 990                                                           selection.end.pos(),
 991                                                           label);
 992                 return result;
 993         }
 994
 995         // The selection spans more than one paragraph
 996
 997         // First paragraph in selection
 998         result += selection.start.par()->asString(buffer,
 999                                                   selection.start.pos(),
1000                                                   selection.start.par()->size(),
1001                                                   label)
1002                 + "\n\n";
1003
1004         // The paragraphs in between (if any)
1005         LyXCursor tmpcur(selection.start);
1006         tmpcur.par(tmpcur.par()->next());
1007         while (tmpcur.par() != selection.end.par()) {
1008                 result += tmpcur.par()->asString(buffer, 0,
1009                                                  tmpcur.par()->size(),
1010                                                  label) + "\n\n";
1011                 tmpcur.par(tmpcur.par()->next());
1012         }
1013
1014         // Last paragraph in selection
1015         result += selection.end.par()->asString(buffer, 0,
1016                                                 selection.end.pos(), label);
1017
1018         return result;
1019 }
1020
1021
1022 void LyXText::clearSelection() const
1023 {
1024         selection.set(false);
1025         selection.mark(false);
1026         last_sel_cursor = selection.end = selection.start = selection.cursor = cursor;
1027         // reset this in the bv_owner!
1028         if (bv_owner && bv_owner->text)
1029                 bv_owner->text->xsel_cache.set(false);
1030 }
1031
1032
1033 void LyXText::cursorHome(BufferView * bview) const
1034 {
1035         setCursor(bview, cursor.par(), cursor.row()->pos());
1036 }
1037
1038
1039 void LyXText::cursorEnd(BufferView * bview) const
1040 {
1041         if (!cursor.row()->next()
1042             || cursor.row()->next()->par() != cursor.row()->par()) {
1043                 setCursor(bview, cursor.par(), rowLast(cursor.row()) + 1);
1044         } else {
1045                 if (cursor.par()->size() &&
1046                     (cursor.par()->getChar(rowLast(cursor.row())) == ' '
1047                      || cursor.par()->isNewline(rowLast(cursor.row())))) {
1048                         setCursor(bview, cursor.par(), rowLast(cursor.row()));
1049                 } else {
1050                         setCursor(bview,cursor.par(),
1051                                   rowLast(cursor.row()) + 1);
1052                 }
1053         }
1054 }
1055
1056
1057 void LyXText::cursorTop(BufferView * bview) const
1058 {
1059         while (cursor.par()->previous())
1060                 cursor.par(cursor.par()->previous());
1061         setCursor(bview, cursor.par(), 0);
1062 }
1063
1064
1065 void LyXText::cursorBottom(BufferView * bview) const
1066 {
1067         while (cursor.par()->next())
1068                 cursor.par(cursor.par()->next());
1069         setCursor(bview, cursor.par(), cursor.par()->size());
1070 }
1071
1072
1073 void LyXText::toggleFree(BufferView * bview,
1074                          LyXFont const & font, bool toggleall)
1075 {
1076         // If the mask is completely neutral, tell user
1077         if (font == LyXFont(LyXFont::ALL_IGNORE)) {
1078                 // Could only happen with user style
1079                 bview->owner()->message(_("No font change defined. Use Character under the Layout menu to define font change."));
1080                 return;
1081         }
1082
1083         // Try implicit word selection
1084         // If there is a change in the language the implicit word selection
1085         // is disabled.
1086         LyXCursor resetCursor = cursor;
1087         bool implicitSelection = (font.language() == ignore_language
1088                                   && font.number() == LyXFont::IGNORE)
1089                 ? selectWordWhenUnderCursor(bview, WHOLE_WORD_STRICT) : false;
1090
1091         // Set font
1092         setFont(bview, font, toggleall);
1093
1094         // Implicit selections are cleared afterwards
1095         //and cursor is set to the original position.
1096         if (implicitSelection) {
1097                 clearSelection();
1098                 cursor = resetCursor;
1099                 setCursor(bview, cursor.par(), cursor.pos());
1100                 selection.cursor = cursor;
1101         }
1102         if (inset_owner)
1103                 inset_owner->setUpdateStatus(bview, InsetText::CURSOR_PAR);
1104 }
1105
1106
1107 string LyXText::getStringToIndex(BufferView * bview)
1108 {
1109         string idxstring;
1110
1111         // Try implicit word selection
1112         // If there is a change in the language the implicit word selection
1113         // is disabled.
1114         LyXCursor resetCursor = cursor;
1115         bool implicitSelection = selectWordWhenUnderCursor(bview, PREVIOUS_WORD);
1116
1117         if (!selection.set()) {
1118                 bview->owner()->message(_("Nothing to index!"));
1119                 return string();
1120         }
1121         if (selection.start.par() != selection.end.par()) {
1122                 bview->owner()->message(_("Cannot index more than one paragraph!"));
1123                 return string();
1124         }
1125
1126         idxstring = selectionAsString(bview->buffer(), false);
1127
1128         // Implicit selections are cleared afterwards
1129         //and cursor is set to the original position.
1130         if (implicitSelection) {
1131                 clearSelection();
1132                 cursor = resetCursor;
1133                 setCursor(bview, cursor.par(), cursor.pos());
1134                 selection.cursor = cursor;
1135         }
1136         return idxstring;
1137 }
1138
1139
1140 pos_type LyXText::beginningOfMainBody(Buffer const * buf,
1141                              Paragraph const * par) const
1142 {
1143         if (textclasslist[buf->params.textclass][
1144                                 par->layout()].labeltype != LABEL_MANUAL)
1145                 return 0;
1146         else
1147                 return par->beginningOfMainBody();
1148 }
1149
1150
1151 /* the DTP switches for paragraphs. LyX will store them in the
1152 * first physicla paragraph. When a paragraph is broken, the top settings
1153 * rest, the bottom settings are given to the new one. So I can make shure,
1154 * they do not duplicate themself and you cannnot make dirty things with
1155 * them!  */
1156
1157 void LyXText::setParagraph(BufferView * bview,
1158                            bool line_top, bool line_bottom,
1159                            bool pagebreak_top, bool pagebreak_bottom,
1160                            VSpace const & space_top,
1161                            VSpace const & space_bottom,
1162                            Spacing const & spacing,
1163                            LyXAlignment align,
1164                            string labelwidthstring,
1165                            bool noindent)
1166 {
1167         LyXCursor tmpcursor = cursor;
1168         if (!selection.set()) {
1169                 selection.start = cursor;
1170                 selection.end = cursor;
1171         }
1172
1173         // make sure that the depth behind the selection are restored, too
1174         Paragraph * endpar = selection.end.par()->next();
1175         Paragraph * undoendpar = endpar;
1176
1177         if (endpar && endpar->getDepth()) {
1178                 while (endpar && endpar->getDepth()) {
1179                         endpar = endpar->next();
1180                         undoendpar = endpar;
1181                 }
1182         }
1183         else if (endpar) {
1184                 // because of parindents etc.
1185                 endpar = endpar->next();
1186         }
1187
1188         setUndo(bview, Undo::EDIT, selection.start.par(), undoendpar);
1189
1190
1191         Paragraph * tmppar = selection.end.par();
1192         LyXTextClass const & tclass =
1193                 textclasslist[bview->buffer()->params.textclass];
1194
1195         while (tmppar != selection.start.par()->previous()) {
1196                 setCursor(bview, tmppar, 0);
1197                 status(bview, LyXText::NEED_MORE_REFRESH);
1198                 refresh_row = cursor.row();
1199                 refresh_y = cursor.y() - cursor.row()->baseline();
1200                 cursor.par()->params().lineTop(line_top);
1201                 cursor.par()->params().lineBottom(line_bottom);
1202                 cursor.par()->params().pagebreakTop(pagebreak_top);
1203                 cursor.par()->params().pagebreakBottom(pagebreak_bottom);
1204                 cursor.par()->params().spaceTop(space_top);
1205                 cursor.par()->params().spaceBottom(space_bottom);
1206                 cursor.par()->params().spacing(spacing);
1207                 // does the layout allow the new alignment?
1208                 LyXLayout const & layout = tclass[cursor.par()->layout()];
1209
1210                 if (align == LYX_ALIGN_LAYOUT)
1211                         align = layout.align;
1212                 if (align & layout.alignpossible) {
1213                         if (align == layout.align)
1214                                 cursor.par()->params().align(LYX_ALIGN_LAYOUT);
1215                         else
1216                                 cursor.par()->params().align(align);
1217                 }
1218                 cursor.par()->setLabelWidthString(labelwidthstring);
1219                 cursor.par()->params().noindent(noindent);
1220                 tmppar = cursor.par()->previous();
1221         }
1222
1223         redoParagraphs(bview, selection.start, endpar);
1224
1225         clearSelection();
1226         setCursor(bview, selection.start.par(), selection.start.pos());
1227         selection.cursor = cursor;
1228         setCursor(bview, selection.end.par(), selection.end.pos());
1229         setSelection(bview);
1230         setCursor(bview, tmpcursor.par(), tmpcursor.pos());
1231         if (inset_owner)
1232                 bview->updateInset(inset_owner, true);
1233 }
1234
1235
1236 char loweralphaCounter(int n)
1237 {
1238         if (n < 1 || n > 26)
1239                 return '?';
1240         else
1241                 return 'a' + n - 1;
1242 }
1243
1244
1245 namespace {
1246
1247 inline
1248 char alphaCounter(int n)
1249 {
1250         if (n < 1 || n > 26)
1251                 return '?';
1252         else
1253                 return 'A' + n - 1;
1254 }
1255
1256
1257 inline
1258 char hebrewCounter(int n)
1259 {
1260         static const char hebrew[22] = {
1261                 'à', 'á', 'â', 'ã', 'ä', 'å', 'æ', 'ç', 'è',
1262                 'é', 'ë', 'ì', 'î', 'ð', 'ñ', 'ò', 'ô', 'ö',
1263                 '÷', 'ø', 'ù', 'ú'
1264         };
1265         if (n < 1 || n > 22)
1266                 return '?';
1267         else
1268                 return hebrew[n-1];
1269 }
1270
1271
1272 inline
1273 string const romanCounter(int n)
1274 {
1275         static char const * roman[20] = {
1276                 "i",   "ii",  "iii", "iv", "v",
1277                 "vi",  "vii", "viii", "ix", "x",
1278                 "xi",  "xii", "xiii", "xiv", "xv",
1279                 "xvi", "xvii", "xviii", "xix", "xx"
1280         };
1281         if (n < 1 || n > 20)
1282                 return "??";
1283         else
1284                 return roman[n-1];
1285 }
1286
1287 } // namespace anon
1288
1289
1290 // set the counter of a paragraph. This includes the labels
1291 void LyXText::setCounter(Buffer const * buf, Paragraph * par) const
1292 {
1293         LyXTextClass const & textclass = textclasslist[buf->params.textclass];
1294         LyXLayout const & layout = textclass[par->layout()];
1295
1296
1297         // copy the prev-counters to this one,
1298         // unless this is the first paragraph
1299         if (par->previous()) {
1300                 for (int i = 0; i < 10; ++i) {
1301                         par->setCounter(i, par->previous()->getFirstCounter(i));
1302                 }
1303                 par->params().appendix(par->previous()->params().appendix());
1304                 if (!par->params().appendix() && par->params().startOfAppendix()) {
1305                         par->params().appendix(true);
1306                         for (int i = 0; i < 10; ++i) {
1307                                 par->setCounter(i, 0);
1308                         }
1309                 }
1310                 par->enumdepth = par->previous()->enumdepth;
1311                 par->itemdepth = par->previous()->itemdepth;
1312         } else {
1313                 for (int i = 0; i < 10; ++i) {
1314                         par->setCounter(i, 0);
1315                 }
1316                 par->params().appendix(par->params().startOfAppendix());
1317                 par->enumdepth = 0;
1318                 par->itemdepth = 0;
1319         }
1320
1321         /* Maybe we have to increment the enumeration depth.
1322          * BUT, enumeration in a footnote is considered in isolation from its
1323          *      surrounding paragraph so don't increment if this is the
1324          *      first line of the footnote
1325          * AND, bibliographies can't have their depth changed ie. they
1326          *      are always of depth 0
1327          */
1328         if (par->previous()
1329             && par->previous()->getDepth() < par->getDepth()
1330             && textclass[par->previous()->layout()].labeltype == LABEL_COUNTER_ENUMI
1331             && par->enumdepth < 3
1332             && layout.labeltype != LABEL_BIBLIO) {
1333                 par->enumdepth++;
1334         }
1335
1336         // Maybe we have to decrement the enumeration depth, see note above
1337         if (par->previous()
1338             && par->previous()->getDepth() > par->getDepth()
1339             && layout.labeltype != LABEL_BIBLIO) {
1340                 par->enumdepth = par->depthHook(par->getDepth())->enumdepth;
1341                 par->setCounter(6 + par->enumdepth,
1342                                 par->depthHook(par->getDepth())->getCounter(6 + par->enumdepth));
1343                 /* reset the counters.
1344                  * A depth change is like a breaking layout
1345                  */
1346                 for (int i = 6 + par->enumdepth + 1; i < 10; ++i)
1347                         par->setCounter(i, 0);
1348         }
1349
1350         if (!par->params().labelString().empty()) {
1351                 par->params().labelString(string());
1352         }
1353
1354         if (layout.margintype == MARGIN_MANUAL) {
1355                 if (par->params().labelWidthString().empty()) {
1356                         par->setLabelWidthString(layout.labelstring());
1357                 }
1358         } else {
1359                 par->setLabelWidthString(string());
1360         }
1361
1362         // is it a layout that has an automatic label?
1363         if (layout.labeltype >=  LABEL_COUNTER_CHAPTER) {
1364
1365                 int i = layout.labeltype - LABEL_COUNTER_CHAPTER;
1366                 if (i >= 0 && i<= buf->params.secnumdepth) {
1367                         par->incCounter(i);     // increment the counter
1368
1369                         // Is there a label? Useful for Chapter layout
1370                         if (!par->params().appendix()) {
1371                                 if (!layout.labelstring().empty())
1372                                         par->params().labelString(layout.labelstring());
1373                                 else
1374                                         par->params().labelString(string());
1375                         } else {
1376                                 if (!layout.labelstring_appendix().empty())
1377                                         par->params().labelString(layout.labelstring_appendix());
1378                                 else
1379                                         par->params().labelString(string());
1380                         }
1381
1382                         ostringstream s;
1383
1384                         if (!par->params().appendix()) {
1385                                 switch (2 * LABEL_COUNTER_CHAPTER -
1386                                         textclass.maxcounter() + i) {
1387                                 case LABEL_COUNTER_CHAPTER:
1388                                         s << par->getCounter(i);
1389                                         break;
1390                                 case LABEL_COUNTER_SECTION:
1391                                         s << par->getCounter(i - 1) << '.'
1392                                           << par->getCounter(i);
1393                                         break;
1394                                 case LABEL_COUNTER_SUBSECTION:
1395                                         s << par->getCounter(i - 2) << '.'
1396                                           << par->getCounter(i - 1) << '.'
1397                                           << par->getCounter(i);
1398                                         break;
1399                                 case LABEL_COUNTER_SUBSUBSECTION:
1400                                         s << par->getCounter(i - 3) << '.'
1401                                           << par->getCounter(i - 2) << '.'
1402                                           << par->getCounter(i - 1) << '.'
1403                                           << par->getCounter(i);
1404
1405                                         break;
1406                                 case LABEL_COUNTER_PARAGRAPH:
1407                                         s << par->getCounter(i - 4) << '.'
1408                                           << par->getCounter(i - 3) << '.'
1409                                           << par->getCounter(i - 2) << '.'
1410                                           << par->getCounter(i - 1) << '.'
1411                                           << par->getCounter(i);
1412                                         break;
1413                                 case LABEL_COUNTER_SUBPARAGRAPH:
1414                                         s << par->getCounter(i - 5) << '.'
1415                                           << par->getCounter(i - 4) << '.'
1416                                           << par->getCounter(i - 3) << '.'
1417                                           << par->getCounter(i - 2) << '.'
1418                                           << par->getCounter(i - 1) << '.'
1419                                           << par->getCounter(i);
1420
1421                                         break;
1422                                 default:
1423                                         // Can this ever be reached? And in the
1424                                         // case it is, how can this be correct?
1425                                         // (Lgb)
1426                                         s << par->getCounter(i) << '.';
1427                                         break;
1428                                 }
1429                         } else { // appendix
1430                                 switch (2 * LABEL_COUNTER_CHAPTER - textclass.maxcounter() + i) {
1431                                 case LABEL_COUNTER_CHAPTER:
1432                                         if (par->isRightToLeftPar(buf->params))
1433                                                 s << hebrewCounter(par->getCounter(i));
1434                                         else
1435                                                 s << alphaCounter(par->getCounter(i));
1436                                         break;
1437                                 case LABEL_COUNTER_SECTION:
1438                                         if (par->isRightToLeftPar(buf->params))
1439                                                 s << hebrewCounter(par->getCounter(i - 1));
1440                                         else
1441                                                 s << alphaCounter(par->getCounter(i - 1));
1442
1443                                         s << '.'
1444                                           << par->getCounter(i);
1445
1446                                         break;
1447                                 case LABEL_COUNTER_SUBSECTION:
1448                                         if (par->isRightToLeftPar(buf->params))
1449                                                 s << hebrewCounter(par->getCounter(i - 2));
1450                                         else
1451                                                 s << alphaCounter(par->getCounter(i - 2));
1452
1453                                         s << '.'
1454                                           << par->getCounter(i-1) << '.'
1455                                           << par->getCounter(i);
1456
1457                                         break;
1458                                 case LABEL_COUNTER_SUBSUBSECTION:
1459                                         if (par->isRightToLeftPar(buf->params))
1460                                                 s << hebrewCounter(par->getCounter(i-3));
1461                                         else
1462                                                 s << alphaCounter(par->getCounter(i-3));
1463
1464                                         s << '.'
1465                                           << par->getCounter(i-2) << '.'
1466                                           << par->getCounter(i-1) << '.'
1467                                           << par->getCounter(i);
1468
1469                                         break;
1470                                 case LABEL_COUNTER_PARAGRAPH:
1471                                         if (par->isRightToLeftPar(buf->params))
1472                                                 s << hebrewCounter(par->getCounter(i-4));
1473                                         else
1474                                                 s << alphaCounter(par->getCounter(i-4));
1475
1476                                         s << '.'
1477                                           << par->getCounter(i-3) << '.'
1478                                           << par->getCounter(i-2) << '.'
1479                                           << par->getCounter(i-1) << '.'
1480                                           << par->getCounter(i);
1481
1482                                         break;
1483                                 case LABEL_COUNTER_SUBPARAGRAPH:
1484                                         if (par->isRightToLeftPar(buf->params))
1485                                                 s << hebrewCounter(par->getCounter(i-5));
1486                                         else
1487                                                 s << alphaCounter(par->getCounter(i-5));
1488
1489                                         s << '.'
1490                                           << par->getCounter(i-4) << '.'
1491                                           << par->getCounter(i-3) << '.'
1492                                           << par->getCounter(i-2) << '.'
1493                                           << par->getCounter(i-1) << '.'
1494                                           << par->getCounter(i);
1495
1496                                         break;
1497                                 default:
1498                                         // Can this ever be reached? And in the
1499                                         // case it is, how can this be correct?
1500                                         // (Lgb)
1501                                         s << par->getCounter(i) << '.';
1502
1503                                         break;
1504                                 }
1505                         }
1506
1507                         par->params().labelString(par->params().labelString() +s.str().c_str());
1508                         // We really want to remove the c_str as soon as
1509                         // possible...
1510
1511                         for (i++; i < 10; ++i) {
1512                                 // reset the following counters
1513                                 par->setCounter(i, 0);
1514                         }
1515                 } else if (layout.labeltype < LABEL_COUNTER_ENUMI) {
1516                         for (i++; i < 10; ++i) {
1517                                 // reset the following counters
1518                                 par->setCounter(i, 0);
1519                         }
1520                 } else if (layout.labeltype == LABEL_COUNTER_ENUMI) {
1521                         par->incCounter(i + par->enumdepth);
1522                         int number = par->getCounter(i + par->enumdepth);
1523
1524                         ostringstream s;
1525
1526                         switch (par->enumdepth) {
1527                         case 1:
1528                                 if (par->isRightToLeftPar(buf->params))
1529                                         s << '('
1530                                           << hebrewCounter(number)
1531                                           << ')';
1532                                 else
1533                                         s << '('
1534                                           << loweralphaCounter(number)
1535                                           << ')';
1536                                 break;
1537                         case 2:
1538                                 if (par->isRightToLeftPar(buf->params))
1539                                         s << '.' << romanCounter(number);
1540                                 else
1541                                         s << romanCounter(number) << '.';
1542                                 break;
1543                         case 3:
1544                                 if (par->isRightToLeftPar(buf->params))
1545                                         s << '.'
1546                                           << alphaCounter(number);
1547                                 else
1548                                         s << alphaCounter(number)
1549                                           << '.';
1550                                 break;
1551                         default:
1552                                 if (par->isRightToLeftPar(buf->params))
1553                                         s << '.' << number;
1554                                 else
1555                                         s << number << '.';
1556                                 break;
1557                         }
1558
1559                         par->params().labelString(s.str().c_str());
1560
1561                         for (i += par->enumdepth + 1; i < 10; ++i) {
1562                                 // reset the following counters
1563                                 par->setCounter(i, 0);
1564                         }
1565
1566                 }
1567         } else if (layout.labeltype == LABEL_BIBLIO) {// ale970302
1568                 int i = LABEL_COUNTER_ENUMI - LABEL_COUNTER_CHAPTER + par->enumdepth;
1569                 par->incCounter(i);
1570                 int number = par->getCounter(i);
1571                 if (!par->bibkey) {
1572                         InsetCommandParams p("bibitem" );
1573                         par->bibkey = new InsetBibKey(p);
1574                 }
1575                 par->bibkey->setCounter(number);
1576                 par->params().labelString(layout.labelstring());
1577
1578                 // In biblio should't be following counters but...
1579         } else {
1580                 string s = layout.labelstring();
1581
1582                 // the caption hack:
1583                 if (layout.labeltype == LABEL_SENSITIVE) {
1584                         bool isOK (par->inInset() && par->inInset()->owner() &&
1585                                    (par->inInset()->owner()->lyxCode() == Inset::FLOAT_CODE));
1586
1587                         if (isOK) {
1588                                 InsetFloat * tmp = static_cast<InsetFloat*>(par->inInset()->owner());
1589                                 Floating const & fl
1590                                         = floatList.getType(tmp->type());
1591                                 // We should get the correct number here too.
1592                                 s = fl.name() + " #:";
1593                         } else {
1594                                 /* par->SetLayout(0);
1595                                    s = layout->labelstring;  */
1596                                 s = (par->getParLanguage(buf->params)->lang() == "hebrew")
1597                                         ? " :úåòîùî øñç" : "Senseless: ";
1598                         }
1599                 }
1600                 par->params().labelString(s);
1601
1602                 /* reset the enumeration counter. They are always resetted
1603                  * when there is any other layout between */
1604                 for (int i = 6 + par->enumdepth; i < 10; ++i)
1605                         par->setCounter(i, 0);
1606         }
1607 }
1608
1609
1610 // Updates all counters BEHIND the row. Changed paragraphs
1611 // with a dynamic left margin will be rebroken.
1612 void LyXText::updateCounters(BufferView * bview, Row * row) const
1613 {
1614         Paragraph * par;
1615
1616         if (!row) {
1617                 row = firstrow;
1618                 par = row->par();
1619         } else {
1620                 par = row->par()->next();
1621         }
1622
1623         while (par) {
1624                 while (row->par() != par)
1625                         row = row->next();
1626
1627                 setCounter(bview->buffer(), par);
1628
1629                 // now check for the headline layouts. remember that they
1630                 // have a dynamic left margin
1631                 LyXTextClass const & tclass =
1632                         textclasslist[bview->buffer()->params.textclass];
1633                 LyXLayout const & layout = tclass[par->layout()];
1634
1635                 if (layout.margintype == MARGIN_DYNAMIC
1636                     || layout.labeltype == LABEL_SENSITIVE) {
1637                         // Rebreak the paragraph
1638                         removeParagraph(row);
1639                         appendParagraph(bview, row);
1640                 }
1641                 par = par->next();
1642         }
1643 }
1644
1645
1646 void LyXText::insertInset(BufferView * bview, Inset * inset)
1647 {
1648         if (!cursor.par()->insetAllowed(inset->lyxCode()))
1649                 return;
1650         setUndo(bview, Undo::FINISH, cursor.par(), cursor.par()->next());
1651         freezeUndo();
1652         cursor.par()->insertInset(cursor.pos(), inset);
1653         // Just to rebreak and refresh correctly.
1654         // The character will not be inserted a second time
1655         insertChar(bview, Paragraph::META_INSET);
1656         // If we enter a highly editable inset the cursor should be to before
1657         // the inset. This couldn't happen before as Undo was not handled inside
1658         // inset now after the Undo LyX tries to call inset->Edit(...) again
1659         // and cannot do this as the cursor is behind the inset and GetInset
1660         // does not return the inset!
1661         if (isHighlyEditableInset(inset)) {
1662                 cursorLeft(bview, true);
1663         }
1664         unFreezeUndo();
1665 }
1666
1667
1668 void LyXText::copyEnvironmentType()
1669 {
1670         copylayouttype = cursor.par()->layout();
1671 }
1672
1673
1674 void LyXText::pasteEnvironmentType(BufferView * bview)
1675 {
1676         setLayout(bview, copylayouttype);
1677 }
1678
1679
1680 void LyXText::cutSelection(BufferView * bview, bool doclear, bool realcut)
1681 {
1682         // Stuff what we got on the clipboard. Even if there is no selection.
1683
1684         // There is a problem with having the stuffing here in that the
1685         // larger the selection the slower LyX will get. This can be
1686         // solved by running the line below only when the selection has
1687         // finished. The solution used currently just works, to make it
1688         // faster we need to be more clever and probably also have more
1689         // calls to stuffClipboard. (Lgb)
1690         bview->stuffClipboard(selectionAsString(bview->buffer(), true));
1691
1692         // This doesn't make sense, if there is no selection
1693         if (!selection.set())
1694                 return;
1695
1696         // OK, we have a selection. This is always between selection.start
1697         // and selection.end
1698
1699         // make sure that the depth behind the selection are restored, too
1700         Paragraph * endpar = selection.end.par()->next();
1701         Paragraph * undoendpar = endpar;
1702
1703         if (endpar && endpar->getDepth()) {
1704                 while (endpar && endpar->getDepth()) {
1705                         endpar = endpar->next();
1706                         undoendpar = endpar;
1707                 }
1708         } else if (endpar) {
1709                 endpar = endpar->next(); // because of parindents etc.
1710         }
1711
1712         setUndo(bview, Undo::DELETE,
1713                 selection.start.par(), undoendpar);
1714
1715         // there are two cases: cut only within one paragraph or
1716         // more than one paragraph
1717         if (selection.start.par() == selection.end.par()) {
1718                 // only within one paragraph
1719                 endpar = selection.end.par();
1720                 int pos = selection.end.pos();
1721                 CutAndPaste::cutSelection(selection.start.par(), &endpar,
1722                                           selection.start.pos(), pos,
1723                                           bview->buffer()->params.textclass,
1724                                           doclear, realcut);
1725                 selection.end.pos(pos);
1726         } else {
1727                 endpar = selection.end.par();
1728                 int pos = selection.end.pos();
1729                 CutAndPaste::cutSelection(selection.start.par(), &endpar,
1730                                           selection.start.pos(), pos,
1731                                           bview->buffer()->params.textclass,
1732                                           doclear, realcut);
1733                 cursor.par(endpar);
1734                 selection.end.par(endpar);
1735                 selection.end.pos(pos);
1736                 cursor.pos(selection.end.pos());
1737         }
1738         endpar = endpar->next();
1739
1740         // sometimes necessary
1741         if (doclear)
1742                 selection.start.par()->stripLeadingSpaces(bview->buffer()->params.textclass);
1743
1744         redoParagraphs(bview, selection.start, endpar);
1745
1746         // cutSelection can invalidate the cursor so we need to set
1747         // it anew. (Lgb)
1748         cursor = selection.start;
1749
1750         // need a valid cursor. (Lgb)
1751         clearSelection();
1752
1753         setCursor(bview, cursor.par(), cursor.pos());
1754         selection.cursor = cursor;
1755         updateCounters(bview, cursor.row());
1756 }
1757
1758
1759 void LyXText::copySelection(BufferView * bview)
1760 {
1761         // stuff the selection onto the X clipboard, from an explicit copy request
1762         bview->stuffClipboard(selectionAsString(bview->buffer(), true));
1763
1764         // this doesnt make sense, if there is no selection
1765         if (!selection.set())
1766                 return;
1767
1768         // ok we have a selection. This is always between selection.start
1769         // and sel_end cursor
1770
1771         // copy behind a space if there is one
1772         while (selection.start.par()->size() > selection.start.pos()
1773                && selection.start.par()->isLineSeparator(selection.start.pos())
1774                && (selection.start.par() != selection.end.par()
1775                    || selection.start.pos() < selection.end.pos()))
1776                 selection.start.pos(selection.start.pos() + 1);
1777
1778         CutAndPaste::copySelection(selection.start.par(), selection.end.par(),
1779                                    selection.start.pos(), selection.end.pos(),
1780                                    bview->buffer()->params.textclass);
1781 }
1782
1783
1784 void LyXText::pasteSelection(BufferView * bview)
1785 {
1786         // this does not make sense, if there is nothing to paste
1787         if (!CutAndPaste::checkPastePossible(cursor.par()))
1788                 return;
1789
1790         setUndo(bview, Undo::INSERT,
1791                 cursor.par(), cursor.par()->next());
1792
1793         Paragraph * endpar;
1794         Paragraph * actpar = cursor.par();
1795         int pos = cursor.pos();
1796
1797         CutAndPaste::pasteSelection(&actpar, &endpar, pos,
1798                                     bview->buffer()->params.textclass);
1799
1800         redoParagraphs(bview, cursor, endpar);
1801
1802         setCursor(bview, cursor.par(), cursor.pos());
1803         clearSelection();
1804
1805         selection.cursor = cursor;
1806         setCursor(bview, actpar, pos);
1807         setSelection(bview);
1808         updateCounters(bview, cursor.row());
1809 }
1810
1811
1812 // sets the selection over the number of characters of string, no check!!
1813 void LyXText::setSelectionOverString(BufferView * bview, string const & str)
1814 {
1815         if (str.empty())
1816                 return;
1817
1818         selection.cursor = cursor;
1819         for (string::size_type i = 0; i < str.length(); ++i)
1820                 cursorRight(bview);
1821         setSelection(bview);
1822 }
1823
1824
1825 // simple replacing. The font of the first selected character is used
1826 void LyXText::replaceSelectionWithString(BufferView * bview,
1827                                          string const & str)
1828 {
1829         setCursorParUndo(bview);
1830         freezeUndo();
1831
1832         if (!selection.set()) { // create a dummy selection
1833                 selection.end = cursor;
1834                 selection.start = cursor;
1835         }
1836
1837         // Get font setting before we cut
1838         pos_type pos = selection.end.pos();
1839         LyXFont const font = selection.start.par()
1840                 ->getFontSettings(bview->buffer()->params,
1841                                   selection.start.pos());
1842
1843         // Insert the new string
1844         for (string::const_iterator cit = str.begin(); cit != str.end(); ++cit) {
1845                 selection.end.par()->insertChar(pos, (*cit), font);
1846                 ++pos;
1847         }
1848
1849         // Cut the selection
1850         cutSelection(bview, true, false);
1851
1852         unFreezeUndo();
1853 }
1854
1855
1856 // needed to insert the selection
1857 void LyXText::insertStringAsLines(BufferView * bview, string const & str)
1858 {
1859         Paragraph * par = cursor.par();
1860         pos_type pos = cursor.pos();
1861         Paragraph * endpar = cursor.par()->next();
1862
1863         setCursorParUndo(bview);
1864
1865         // only to be sure, should not be neccessary
1866         clearSelection();
1867
1868         bview->buffer()->insertStringAsLines(par, pos, current_font, str);
1869
1870         redoParagraphs(bview, cursor, endpar);
1871         setCursor(bview, cursor.par(), cursor.pos());
1872         selection.cursor = cursor;
1873         setCursor(bview, par, pos);
1874         setSelection(bview);
1875 }
1876
1877
1878 // turns double-CR to single CR, others where converted into one
1879 // blank. Then InsertStringAsLines is called
1880 void LyXText::insertStringAsParagraphs(BufferView * bview, string const & str)
1881 {
1882         string linestr(str);
1883         bool newline_inserted = false;
1884         for (string::size_type i = 0; i < linestr.length(); ++i) {
1885                 if (linestr[i] == '\n') {
1886                         if (newline_inserted) {
1887                                 // we know that \r will be ignored by
1888                                 // InsertStringA. Of course, it is a dirty
1889                                 // trick, but it works...
1890                                 linestr[i - 1] = '\r';
1891                                 linestr[i] = '\n';
1892                         } else {
1893                                 linestr[i] = ' ';
1894                                 newline_inserted = true;
1895                         }
1896                 } else if (IsPrintable(linestr[i])) {
1897                         newline_inserted = false;
1898                 }
1899         }
1900         insertStringAsLines(bview, linestr);
1901 }
1902
1903
1904 bool LyXText::gotoNextInset(BufferView * bview,
1905                             vector<Inset::Code> const & codes,
1906                             string const & contents) const
1907 {
1908         LyXCursor res = cursor;
1909         Inset * inset;
1910         do {
1911                 if (res.pos() < res.par()->size() - 1) {
1912                         res.pos(res.pos() + 1);
1913                 } else  {
1914                         res.par(res.par()->next());
1915                         res.pos(0);
1916                 }
1917
1918         } while (res.par() &&
1919                  !(res.par()->isInset(res.pos())
1920                    && (inset = res.par()->getInset(res.pos())) != 0
1921                    && find(codes.begin(), codes.end(), inset->lyxCode())
1922                    != codes.end()
1923                    && (contents.empty() ||
1924                        static_cast<InsetCommand *>(res.par()->getInset(res.pos()))->getContents()
1925                        == contents)));
1926
1927         if (res.par()) {
1928                 setCursor(bview, res.par(), res.pos(), false);
1929                 return true;
1930         }
1931         return false;
1932 }
1933
1934
1935 void LyXText::checkParagraph(BufferView * bview, Paragraph * par,
1936                              pos_type pos)
1937 {
1938         LyXCursor tmpcursor;
1939
1940         int y = 0;
1941         pos_type z;
1942         Row * row = getRow(par, pos, y);
1943
1944         // is there a break one row above
1945         if (row->previous() && row->previous()->par() == row->par()) {
1946                 z = nextBreakPoint(bview, row->previous(), workWidth(bview));
1947                 if (z >= row->pos()) {
1948                         // set the dimensions of the row above
1949                         y -= row->previous()->height();
1950                         refresh_y = y;
1951                         refresh_row = row->previous();
1952                         status(bview, LyXText::NEED_MORE_REFRESH);
1953
1954                         breakAgain(bview, row->previous());
1955
1956                         // set the cursor again. Otherwise
1957                         // dangling pointers are possible
1958                         setCursor(bview, cursor.par(), cursor.pos(),
1959                                   false, cursor.boundary());
1960                         selection.cursor = cursor;
1961                         return;
1962                 }
1963         }
1964
1965         int const tmpheight = row->height();
1966         pos_type const tmplast = rowLast(row);
1967         refresh_y = y;
1968         refresh_row = row;
1969
1970         breakAgain(bview, row);
1971         if (row->height() == tmpheight && rowLast(row) == tmplast)
1972                 status(bview, LyXText::NEED_VERY_LITTLE_REFRESH);
1973         else
1974                 status(bview, LyXText::NEED_MORE_REFRESH);
1975
1976         // check the special right address boxes
1977         if (textclasslist[bview->buffer()->params.textclass][
1978                                 par->layout()].margintype
1979             == MARGIN_RIGHT_ADDRESS_BOX)
1980         {
1981                 tmpcursor.par(par);
1982                 tmpcursor.row(row);
1983                 tmpcursor.y(y);
1984                 tmpcursor.x(0);
1985                 tmpcursor.x_fix(0);
1986                 tmpcursor.pos(pos);
1987                 redoDrawingOfParagraph(bview, tmpcursor);
1988         }
1989
1990         // set the cursor again. Otherwise dangling pointers are possible
1991         // also set the selection
1992
1993         if (selection.set()) {
1994                 tmpcursor = cursor;
1995                 setCursorIntern(bview, selection.cursor.par(), selection.cursor.pos(),
1996                                 false, selection.cursor.boundary());
1997                 selection.cursor = cursor;
1998                 setCursorIntern(bview, selection.start.par(),
1999                                 selection.start.pos(),
2000                                 false, selection.start.boundary());
2001                 selection.start = cursor;
2002                 setCursorIntern(bview, selection.end.par(),
2003                                 selection.end.pos(),
2004                                 false, selection.end.boundary());
2005                 selection.end = cursor;
2006                 setCursorIntern(bview, last_sel_cursor.par(),
2007                                 last_sel_cursor.pos(),
2008                                 false, last_sel_cursor.boundary());
2009                 last_sel_cursor = cursor;
2010                 cursor = tmpcursor;
2011         }
2012         setCursorIntern(bview, cursor.par(), cursor.pos(),
2013                         false, cursor.boundary());
2014 }
2015
2016
2017 // returns false if inset wasn't found
2018 bool LyXText::updateInset(BufferView * bview, Inset * inset)
2019 {
2020         // first check the current paragraph
2021         int pos = cursor.par()->getPositionOfInset(inset);
2022         if (pos != -1) {
2023                 checkParagraph(bview, cursor.par(), pos);
2024                 return true;
2025         }
2026
2027         // check every paragraph
2028
2029         Paragraph * par = ownerParagraph();
2030         do {
2031                 pos = par->getPositionOfInset(inset);
2032                 if (pos != -1) {
2033                         checkParagraph(bview, par, pos);
2034                         return true;
2035                 }
2036                 par = par->next();
2037         } while (par);
2038
2039         return false;
2040 }
2041
2042
2043 bool LyXText::setCursor(BufferView * bview, Paragraph * par,
2044                         pos_type pos,
2045                         bool setfont, bool boundary) const
2046 {
2047         LyXCursor old_cursor = cursor;
2048         setCursorIntern(bview, par, pos, setfont, boundary);
2049         return deleteEmptyParagraphMechanism(bview, old_cursor);
2050 }
2051
2052
2053 void LyXText::setCursor(BufferView * bview, LyXCursor & cur, Paragraph * par,
2054                         pos_type pos, bool boundary) const
2055 {
2056         lyx::Assert(par);
2057         lyx::Assert(bview);
2058
2059         cur.par(par);
2060         cur.pos(pos);
2061         cur.boundary(boundary);
2062
2063         // get the cursor y position in text
2064         int y = 0;
2065         Row * row = getRow(par, pos, y);
2066         Row * old_row = row;
2067         // if we are before the first char of this row and are still in the
2068         // same paragraph and there is a previous row then put the cursor on
2069         // the end of the previous row
2070         cur.iy(y + row->baseline());
2071         Inset * ins;
2072         if (row->previous() && pos &&
2073                 par->getChar(pos) == Paragraph::META_INSET &&
2074                 (ins=par->getInset(pos)) && (ins->needFullRow() || ins->display()))
2075         {
2076                 row = row->previous();
2077                 y -= row->height();
2078         }
2079
2080         cur.row(row);
2081         // y is now the beginning of the cursor row
2082         y += row->baseline();
2083         // y is now the cursor baseline
2084         cur.y(y);
2085
2086         pos_type last = rowLastPrintable(old_row);
2087
2088         if (pos > last + 1) {
2089                 // This shouldn't happen.
2090                 pos = last + 1;
2091                 cur.pos(pos);
2092         } else if (pos < row->pos()) {
2093                 pos = row->pos();
2094                 cur.pos(pos);
2095         }
2096
2097         // now get the cursors x position
2098         float x = getCursorX(bview, row, pos, last, boundary);
2099         cur.x(int(x));
2100         cur.x_fix(cur.x());
2101         if (old_row != row) {
2102                 x = getCursorX(bview, old_row, pos, last, boundary);
2103                 cur.ix(int(x));
2104         } else
2105                 cur.ix(cur.x());
2106 }
2107
2108
2109 float LyXText::getCursorX(BufferView * bview, Row * row,
2110                                                   pos_type pos, pos_type last, bool boundary) const
2111 {
2112         pos_type cursor_vpos = 0;
2113         float x;
2114         float fill_separator;
2115         float fill_hfill;
2116         float fill_label_hfill;
2117         // This call HAS to be here because of the BidiTables!!!
2118         prepareToPrint(bview, row, x, fill_separator, fill_hfill,
2119                        fill_label_hfill);
2120
2121         if (last < row->pos())
2122                 cursor_vpos = row->pos();
2123         else if (pos > last && !boundary)
2124                 cursor_vpos = (row->par()->isRightToLeftPar(bview->buffer()->params))
2125                         ? row->pos() : last + 1;
2126         else if (pos > row->pos() &&
2127                  (pos > last || boundary))
2128                 /// Place cursor after char at (logical) position pos - 1
2129                 cursor_vpos = (bidi_level(pos - 1) % 2 == 0)
2130                         ? log2vis(pos - 1) + 1 : log2vis(pos - 1);
2131         else
2132                 /// Place cursor before char at (logical) position pos
2133                 cursor_vpos = (bidi_level(pos) % 2 == 0)
2134                         ? log2vis(pos) : log2vis(pos) + 1;
2135
2136         pos_type main_body =
2137                 beginningOfMainBody(bview->buffer(), row->par());
2138         if ((main_body > 0) &&
2139             ((main_body-1 > last) ||
2140              !row->par()->isLineSeparator(main_body-1)))
2141                 main_body = 0;
2142
2143         for (pos_type vpos = row->pos(); vpos < cursor_vpos; ++vpos) {
2144                 pos_type pos = vis2log(vpos);
2145                 if (main_body > 0 && pos == main_body - 1) {
2146                         x += fill_label_hfill +
2147                                 lyxfont::width(textclasslist[
2148                                                        bview->buffer()->params.textclass][
2149                                         row->par()->layout()]
2150                                                .labelsep,
2151                                                getLabelFont(bview->buffer(), row->par()));
2152                         if (row->par()->isLineSeparator(main_body-1))
2153                                 x -= singleWidth(bview, row->par(),main_body-1);
2154                 }
2155                 if (hfillExpansion(bview->buffer(), row, pos)) {
2156                         x += singleWidth(bview, row->par(), pos);
2157                         if (pos >= main_body)
2158                                 x += fill_hfill;
2159                         else
2160                                 x += fill_label_hfill;
2161                 } else if (row->par()->isSeparator(pos)) {
2162                         x += singleWidth(bview, row->par(), pos);
2163                         if (pos >= main_body)
2164                                 x += fill_separator;
2165                 } else
2166                         x += singleWidth(bview, row->par(), pos);
2167         }
2168         return x;
2169 }
2170
2171
2172 void LyXText::setCursorIntern(BufferView * bview, Paragraph * par,
2173                               pos_type pos, bool setfont, bool boundary) const
2174 {
2175         InsetText * it = static_cast<InsetText *>(par->inInset());
2176         if (it) {
2177                 if (it != inset_owner) {
2178                         lyxerr[Debug::INSETS] << "InsetText   is " << it
2179                                               << endl
2180                                               << "inset_owner is "
2181                                               << inset_owner << endl;
2182 #ifdef WITH_WARNINGS
2183 #warning I believe this code is wrong. (Lgb)
2184 #warning Jürgen, have a look at this. (Lgb)
2185 #warning Hmmm, I guess you are right but we
2186 #warning should verify when this is needed
2187 #endif
2188                         // Jürgen, would you like to have a look?
2189                         // I guess we need to move the outer cursor
2190                         // and open and lock the inset (bla bla bla)
2191                         // stuff I don't know... so can you have a look?
2192                         // (Lgb)
2193                         // I moved the lyxerr stuff in here so we can see if
2194                         // this is actually really needed and where!
2195                         // (Jug)
2196                         // it->getLyXText(bview)->setCursorIntern(bview, par, pos, setfont, boundary);
2197                         return;
2198                 }
2199         }
2200
2201         setCursor(bview, cursor, par, pos, boundary);
2202         if (setfont)
2203                 setCurrentFont(bview);
2204 }
2205
2206
2207 void LyXText::setCurrentFont(BufferView * bview) const
2208 {
2209         pos_type pos = cursor.pos();
2210         if (cursor.boundary() && pos > 0)
2211                 --pos;
2212
2213         if (pos > 0) {
2214                 if (pos == cursor.par()->size())
2215                         --pos;
2216                 else // potentional bug... BUG (Lgb)
2217                         if (cursor.par()->isSeparator(pos)) {
2218                                 if (pos > cursor.row()->pos() &&
2219                                     bidi_level(pos) % 2 ==
2220                                     bidi_level(pos - 1) % 2)
2221                                         --pos;
2222                                 else if (pos + 1 < cursor.par()->size())
2223                                         ++pos;
2224                         }
2225         }
2226
2227         current_font =
2228                 cursor.par()->getFontSettings(bview->buffer()->params, pos);
2229         real_current_font = getFont(bview->buffer(), cursor.par(), pos);
2230
2231         if (cursor.pos() == cursor.par()->size() &&
2232             isBoundary(bview->buffer(), cursor.par(), cursor.pos()) &&
2233             !cursor.boundary()) {
2234                 Language const * lang =
2235                         cursor.par()->getParLanguage(bview->buffer()->params);
2236                 current_font.setLanguage(lang);
2237                 current_font.setNumber(LyXFont::OFF);
2238                 real_current_font.setLanguage(lang);
2239                 real_current_font.setNumber(LyXFont::OFF);
2240         }
2241 }
2242
2243
2244 void LyXText::setCursorFromCoordinates(BufferView * bview, int x, int y) const
2245 {
2246         LyXCursor old_cursor = cursor;
2247
2248         setCursorFromCoordinates(bview, cursor, x, y);
2249         setCurrentFont(bview);
2250         deleteEmptyParagraphMechanism(bview, old_cursor);
2251 }
2252
2253
2254 void LyXText::setCursorFromCoordinates(BufferView * bview, LyXCursor & cur,
2255                                        int x, int y) const
2256 {
2257         // Get the row first.
2258
2259         Row * row = getRowNearY(y);
2260         bool bound = false;
2261         pos_type const column = getColumnNearX(bview, row, x, bound);
2262         cur.par(row->par());
2263         cur.pos(row->pos() + column);
2264         cur.x(x);
2265         cur.ix(x);
2266         cur.y(y + row->baseline());
2267         Inset * ins;
2268         if (row->next() && cur.pos() &&
2269                 cur.par()->getChar(cur.pos()) == Paragraph::META_INSET &&
2270                 (ins=cur.par()->getInset(cur.pos())) &&
2271                 (ins->needFullRow() || ins->display()))
2272         {
2273                 cur.iy(y + row->height() + row->next()->baseline());
2274         } else {
2275                 cur.iy(cur.y());
2276         }
2277         cur.row(row);
2278         cur.boundary(bound);
2279 }
2280
2281
2282 void LyXText::cursorLeft(BufferView * bview, bool internal) const
2283 {
2284         if (cursor.pos() > 0) {
2285                 bool boundary = cursor.boundary();
2286                 setCursor(bview, cursor.par(), cursor.pos() - 1, true, false);
2287                 if (!internal && !boundary &&
2288                     isBoundary(bview->buffer(), cursor.par(), cursor.pos() + 1))
2289                         setCursor(bview, cursor.par(), cursor.pos() + 1, true, true);
2290         } else if (cursor.par()->previous()) { // steps into the above paragraph.
2291                 Paragraph * par = cursor.par()->previous();
2292                 setCursor(bview, par, par->size());
2293         }
2294 }
2295
2296
2297 void LyXText::cursorRight(BufferView * bview, bool internal) const
2298 {
2299         if (!internal && cursor.boundary() &&
2300             !cursor.par()->isNewline(cursor.pos()))
2301                 setCursor(bview, cursor.par(), cursor.pos(), true, false);
2302         else if (cursor.pos() < cursor.par()->size()) {
2303                 setCursor(bview, cursor.par(), cursor.pos() + 1, true, false);
2304                 if (!internal &&
2305                     isBoundary(bview->buffer(), cursor.par(), cursor.pos()))
2306                         setCursor(bview, cursor.par(), cursor.pos(), true, true);
2307         } else if (cursor.par()->next())
2308                 setCursor(bview, cursor.par()->next(), 0);
2309 }
2310
2311
2312 void LyXText::cursorUp(BufferView * bview) const
2313 {
2314         setCursorFromCoordinates(bview, cursor.x_fix(),
2315                                  cursor.y() - cursor.row()->baseline() - 1);
2316 }
2317
2318
2319 void LyXText::cursorDown(BufferView * bview) const
2320 {
2321         setCursorFromCoordinates(bview, cursor.x_fix(),
2322                                  cursor.y() - cursor.row()->baseline()
2323                                  + cursor.row()->height() + 1);
2324 }
2325
2326
2327 void LyXText::cursorUpParagraph(BufferView * bview) const
2328 {
2329         if (cursor.pos() > 0) {
2330                 setCursor(bview, cursor.par(), 0);
2331         }
2332         else if (cursor.par()->previous()) {
2333                 setCursor(bview, cursor.par()->previous(), 0);
2334         }
2335 }
2336
2337
2338 void LyXText::cursorDownParagraph(BufferView * bview) const
2339 {
2340         if (cursor.par()->next()) {
2341                 setCursor(bview, cursor.par()->next(), 0);
2342         } else {
2343                 setCursor(bview, cursor.par(), cursor.par()->size());
2344         }
2345 }
2346
2347 // fix the cursor `cur' after a characters has been deleted at `where'
2348 // position. Called by deleteEmptyParagraphMechanism
2349 void LyXText::fixCursorAfterDelete(BufferView * bview,
2350                                    LyXCursor & cur,
2351                                    LyXCursor const & where) const
2352 {
2353         // if cursor is not in the paragraph where the delete occured,
2354         // do nothing
2355         if (cur.par() != where.par())
2356                 return;
2357
2358         // if cursor position is after the place where the delete occured,
2359         // update it
2360         if (cur.pos() > where.pos())
2361                 cur.pos(cur.pos()-1);
2362
2363         // recompute row et al. for this cursor
2364         setCursor(bview, cur, cur.par(), cur.pos(), cur.boundary());
2365 }
2366
2367
2368 bool LyXText::deleteEmptyParagraphMechanism(BufferView * bview,
2369                                             LyXCursor const & old_cursor) const
2370 {
2371         // Would be wrong to delete anything if we have a selection.
2372         if (selection.set())
2373                 return false;
2374
2375         // We allow all kinds of "mumbo-jumbo" when freespacing.
2376         if (textclasslist[bview->buffer()->params.textclass][
2377                                 old_cursor.par()->layout()].free_spacing
2378             || old_cursor.par()->isFreeSpacing())
2379         {
2380                 return false;
2381         }
2382
2383         /* Ok I'll put some comments here about what is missing.
2384            I have fixed BackSpace (and thus Delete) to not delete
2385            double-spaces automagically. I have also changed Cut,
2386            Copy and Paste to hopefully do some sensible things.
2387            There are still some small problems that can lead to
2388            double spaces stored in the document file or space at
2389            the beginning of paragraphs. This happens if you have
2390            the cursor betwenn to spaces and then save. Or if you
2391            cut and paste and the selection have a space at the
2392            beginning and then save right after the paste. I am
2393            sure none of these are very hard to fix, but I will
2394            put out 1.1.4pre2 with FIX_DOUBLE_SPACE defined so
2395            that I can get some feedback. (Lgb)
2396         */
2397
2398         // If old_cursor.pos() == 0 and old_cursor.pos()(1) == LineSeparator
2399         // delete the LineSeparator.
2400         // MISSING
2401
2402         // If old_cursor.pos() == 1 and old_cursor.pos()(0) == LineSeparator
2403         // delete the LineSeparator.
2404         // MISSING
2405
2406         // If the pos around the old_cursor were spaces, delete one of them.
2407         if (old_cursor.par() != cursor.par()
2408             || old_cursor.pos() != cursor.pos()) {
2409                 // Only if the cursor has really moved
2410
2411                 if (old_cursor.pos() > 0
2412                     && old_cursor.pos() < old_cursor.par()->size()
2413                     && old_cursor.par()->isLineSeparator(old_cursor.pos())
2414                     && old_cursor.par()->isLineSeparator(old_cursor.pos() - 1)) {
2415                         old_cursor.par()->erase(old_cursor.pos() - 1);
2416                         redoParagraphs(bview, old_cursor, old_cursor.par()->next());
2417
2418 #ifdef WITH_WARNINGS
2419 #warning This will not work anymore when we have multiple views of the same buffer
2420 // In this case, we will have to correct also the cursors held by
2421 // other bufferviews. It will probably be easier to do that in a more
2422 // automated way in LyXCursor code. (JMarc 26/09/2001)
2423 #endif
2424                         // correct all cursors held by the LyXText
2425                         fixCursorAfterDelete(bview, cursor, old_cursor);
2426                         fixCursorAfterDelete(bview, selection.cursor,
2427                                              old_cursor);
2428                         fixCursorAfterDelete(bview, selection.start,
2429                                              old_cursor);
2430                         fixCursorAfterDelete(bview, selection.end, old_cursor);
2431                         fixCursorAfterDelete(bview, last_sel_cursor,
2432                                              old_cursor);
2433                         fixCursorAfterDelete(bview, toggle_cursor, old_cursor);
2434                         fixCursorAfterDelete(bview, toggle_end_cursor,
2435                                              old_cursor);
2436                         return false;
2437                 }
2438         }
2439
2440         // don't delete anything if this is the ONLY paragraph!
2441         if (!old_cursor.par()->next() && !old_cursor.par()->previous())
2442                 return false;
2443
2444         // Do not delete empty paragraphs with keepempty set.
2445         if (textclasslist
2446             [bview->buffer()->params.textclass]
2447             [old_cursor.par()->layout()].keepempty)
2448                 return false;
2449
2450         // only do our magic if we changed paragraph
2451         if (old_cursor.par() == cursor.par())
2452                 return false;
2453
2454         // record if we have deleted a paragraph
2455         // we can't possibly have deleted a paragraph before this point
2456         bool deleted = false;
2457
2458         if ((old_cursor.par()->size() == 0
2459              || (old_cursor.par()->size() == 1
2460                  && old_cursor.par()->isLineSeparator(0)))) {
2461                 // ok, we will delete anything
2462                 LyXCursor tmpcursor;
2463
2464                 // make sure that you do not delete any environments
2465                 status(bview, LyXText::NEED_MORE_REFRESH);
2466                 deleted = true;
2467
2468                 if (old_cursor.row()->previous()) {
2469                         refresh_row = old_cursor.row()->previous();
2470                         refresh_y = old_cursor.y() - old_cursor.row()->baseline() - refresh_row->height();
2471                         tmpcursor = cursor;
2472                         cursor = old_cursor; // that undo can restore the right cursor position
2473                         Paragraph * endpar = old_cursor.par()->next();
2474                         if (endpar && endpar->getDepth()) {
2475                                 while (endpar && endpar->getDepth()) {
2476                                         endpar = endpar->next();
2477                                 }
2478                         }
2479                         setUndo(bview, Undo::DELETE, old_cursor.par(), endpar);
2480                         cursor = tmpcursor;
2481
2482                         // delete old row
2483                         removeRow(old_cursor.row());
2484                         if (ownerParagraph() == old_cursor.par()) {
2485                                 ownerParagraph(ownerParagraph()->next());
2486                         }
2487                         // delete old par
2488                         delete old_cursor.par();
2489
2490                         /* Breakagain the next par. Needed because of
2491                          * the parindent that can occur or dissappear.
2492                          * The next row can change its height, if
2493                          * there is another layout before */
2494                         if (refresh_row->next()) {
2495                                 breakAgain(bview, refresh_row->next());
2496                                 updateCounters(bview, refresh_row);
2497                         }
2498                         setHeightOfRow(bview, refresh_row);
2499                 } else {
2500                         refresh_row = old_cursor.row()->next();
2501                         refresh_y = old_cursor.y() - old_cursor.row()->baseline();
2502
2503                         tmpcursor = cursor;
2504                         cursor = old_cursor; // that undo can restore the right cursor position
2505                         Paragraph * endpar = old_cursor.par()->next();
2506                         if (endpar && endpar->getDepth()) {
2507                                 while (endpar && endpar->getDepth()) {
2508                                         endpar = endpar->next();
2509                                 }
2510                         }
2511                         setUndo(bview, Undo::DELETE, old_cursor.par(), endpar);
2512                         cursor = tmpcursor;
2513
2514                         // delete old row
2515                         removeRow(old_cursor.row());
2516                         // delete old par
2517                         if (ownerParagraph() == old_cursor.par()) {
2518                                 ownerParagraph(ownerParagraph()->next());
2519                         }
2520
2521                         delete old_cursor.par();
2522
2523                         /* Breakagain the next par. Needed because of
2524                            the parindent that can occur or dissappear.
2525                            The next row can change its height, if
2526                            there is another layout before */
2527                         if (refresh_row) {
2528                                 breakAgain(bview, refresh_row);
2529                                 updateCounters(bview, refresh_row->previous());
2530                         }
2531                 }
2532
2533                 // correct cursor y
2534                 setCursorIntern(bview, cursor.par(), cursor.pos());
2535
2536                 if (selection.cursor.par()  == old_cursor.par()
2537                     && selection.cursor.pos() == old_cursor.pos()) {
2538                         // correct selection
2539                         selection.cursor = cursor;
2540                 }
2541         }
2542         if (!deleted) {
2543                 if (old_cursor.par()->stripLeadingSpaces(bview->buffer()->params.textclass)) {
2544                         redoParagraphs(bview, old_cursor,
2545                                        old_cursor.par()->next());
2546                         // correct cursor y
2547                         setCursorIntern(bview, cursor.par(), cursor.pos());
2548                         selection.cursor = cursor;
2549                 }
2550         }
2551         return deleted;
2552 }
2553
2554
2555 void LyXText::toggleAppendix(BufferView * bview)
2556 {
2557         Paragraph * par = cursor.par();
2558         bool start = !par->params().startOfAppendix();
2559
2560         // ensure that we have only one start_of_appendix in this document
2561         Paragraph * tmp = ownerParagraph();
2562         for (; tmp; tmp = tmp->next()) {
2563                 tmp->params().startOfAppendix(false);
2564         }
2565
2566         par->params().startOfAppendix(start);
2567
2568         // we can set the refreshing parameters now
2569         status(bview, LyXText::NEED_MORE_REFRESH);
2570         refresh_y = 0;
2571         refresh_row = 0; // not needed for full update
2572         updateCounters(bview, 0);
2573         setCursor(bview, cursor.par(), cursor.pos());
2574 }
2575
2576
2577 Paragraph * LyXText::ownerParagraph() const
2578 {
2579         if (inset_owner) {
2580                 return inset_owner->paragraph();
2581         }
2582         return bv_owner->buffer()->paragraph;
2583 }
2584
2585
2586 void LyXText::ownerParagraph(Paragraph * p) const
2587 {
2588         if (inset_owner) {
2589                 inset_owner->paragraph(p);
2590         } else {
2591                 bv_owner->buffer()->paragraph = p;
2592         }
2593 }
2594
2595
2596 void LyXText::ownerParagraph(int id, Paragraph * p) const
2597 {
2598         Paragraph * op = bv_owner->buffer()->getParFromID(id);
2599         if (op && op->inInset()) {
2600                 static_cast<InsetText *>(op->inInset())->paragraph(p);
2601         } else {
2602                 ownerParagraph(p);
2603         }
2604 }
2605
2606
2607 LyXText::text_status LyXText::status() const
2608 {
2609         return status_;
2610 }
2611
2612
2613 void LyXText::status(BufferView * bview, LyXText::text_status st) const
2614 {
2615         // well as much as I know && binds more then || so the above and the
2616         // below are identical (this for your known use of parentesis!)
2617         // Now some explanation:
2618         // We should only go up with refreshing code so this means that if
2619         // we have a MORE refresh we should never set it to LITTLE if we still
2620         // didn't handle it (and then it will be UNCHANGED. Now as long as
2621         // we stay inside one LyXText this may work but we need to tell the
2622         // outermost LyXText that it should REALLY draw us if there is some
2623         // change in a Inset::LyXText. So you see that when we are inside a
2624         // inset's LyXText we give the LITTLE to the outermost LyXText to
2625         // tell'em that it should redraw the actual row (where the inset
2626         // resides! Capito?!
2627
2628         if ((status_ != NEED_MORE_REFRESH)
2629             || (status_ == NEED_MORE_REFRESH
2630                 && st != NEED_VERY_LITTLE_REFRESH))
2631         {
2632                 status_ = st;
2633                 if (inset_owner && st != UNCHANGED) {
2634                         bview->text->status(bview, NEED_VERY_LITTLE_REFRESH);
2635                         if (!bview->text->refresh_row) {
2636                                 bview->text->refresh_row = bview->text->cursor.row();
2637                                 bview->text->refresh_y = bview->text->cursor.y() -
2638                                         bview->text->cursor.row()->baseline();
2639                         }
2640                 }
2641         }
2642 }