src/insets/insettext.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 1998-2001 The LyX Team.
   7  *
   8  * ======================================================
   9  */
  10
  11 #include <config.h>
  12
  13 #ifdef __GNUG__
  14 #pragma implementation
  15 #endif
  16
  17 #include "insettext.h"
  18 #include "paragraph.h"
  19 #include "lyxlex.h"
  20 #include "debug.h"
  21 #include "lyxfont.h"
  22 #include "commandtags.h"
  23 #include "buffer.h"
  24 #include "LyXView.h"
  25 #include "BufferView.h"
  26 #include "lyxtextclasslist.h"
  27 #include "LaTeXFeatures.h"
  28 #include "Painter.h"
  29 #include "lyxtext.h"
  30 #include "lyxcursor.h"
  31 #include "CutAndPaste.h"
  32 #include "font.h"
  33 #include "LColor.h"
  34 #include "lyxrow.h"
  35 #include "lyxrc.h"
  36 #include "intl.h"
  37 #include "trans_mgr.h"
  38 #include "lyxscreen.h"
  39 #include "WorkArea.h"
  40 #include "gettext.h"
  41 #include "lyxfunc.h"
  42 #include "ParagraphParameters.h"
  43 #include "undo_funcs.h"
  44 #include "lyxfind.h"
  45
  46 #include "frontends/Alert.h"
  47
  48 #include "support/textutils.h"
  49 #include "support/LAssert.h"
  50 #include "support/lstrings.h"
  51 #include "support/lyxalgo.h" // lyx::count
  52
  53 #include <fstream>
  54 #include <algorithm>
  55 #include <cstdlib>
  56 //#include <csignal>
  57
  58 using std::ostream;
  59 using std::ifstream;
  60 using std::endl;
  61 using std::min;
  62 using std::max;
  63 using std::make_pair;
  64 using std::vector;
  65
  66 using lyx::pos_type;
  67 using lyx::layout_type;
  68 using lyx::textclass_type;
  69
  70 extern unsigned char getCurrentTextClass(Buffer *);
  71 extern bool math_insert_greek(BufferView *, char);
  72 extern int greek_kb_flag;
  73
  74
  75 // These functions should probably go into bufferview_funcs somehow (Jug)
  76
  77 void InsetText::saveLyXTextState(LyXText * t) const
  78 {
  79         // check if my paragraphs are still valid
  80         Paragraph * p = par;
  81         while (p) {
  82                 if (p == t->cursor.par())
  83                         break;
  84                 p = p->next();
  85         }
  86
  87         if (p && t->cursor.pos() <= p->size()) {
  88                 sstate.lpar = t->cursor.par();
  89                 sstate.pos = t->cursor.pos();
  90                 sstate.boundary = t->cursor.boundary();
  91                 sstate.selstartpar = t->selection.start.par();
  92                 sstate.selstartpos = t->selection.start.pos();
  93                 sstate.selstartboundary = t->selection.start.boundary();
  94                 sstate.selendpar = t->selection.end.par();
  95                 sstate.selendpos = t->selection.end.pos();
  96                 sstate.selendboundary = t->selection.end.boundary();
  97                 sstate.selection = t->selection.set();
  98                 sstate.mark_set = t->selection.mark();
  99                 sstate.refresh = t->refresh_row != 0;
 100         } else {
 101                 sstate.lpar = 0;
 102         }
 103 }
 104
 105 void InsetText::restoreLyXTextState(BufferView * bv, LyXText * t) const
 106 {
 107         if (sstate.lpar) {
 108                 t->selection.set(true);
 109                 /* at this point just to avoid the Delete-Empty-Paragraph
 110                  * Mechanism when setting the cursor */
 111                 t->selection.mark(sstate.mark_set);
 112                 if (sstate.selection) {
 113                         t->setCursor(bv, sstate.selstartpar, sstate.selstartpos,
 114                                      true, sstate.selstartboundary);
 115                         t->selection.cursor = t->cursor;
 116                         t->setCursor(bv, sstate.selendpar, sstate.selendpos,
 117                                      true, sstate.selendboundary);
 118                         t->setSelection(bv);
 119                         t->setCursor(bv, sstate.lpar, sstate.pos);
 120                 } else {
 121                         t->setCursor(bv, sstate.lpar, sstate.pos, true, sstate.boundary);
 122                         t->selection.cursor = t->cursor;
 123                         t->selection.set(false);
 124                 }
 125                 if (sstate.refresh) {
 126                 }
 127         }
 128 }
 129
 130
 131 InsetText::InnerCache::InnerCache(boost::shared_ptr<LyXText> t)
 132 {
 133         text = t;
 134         remove = false;
 135 }
 136
 137
 138 InsetText::InsetText()
 139         : UpdatableInset(), lt(0), in_update(false), do_resize(0),
 140           do_reinit(false)
 141 {
 142         par = new Paragraph;
 143         init();
 144 }
 145
 146
 147 InsetText::InsetText(InsetText const & in, bool same_id)
 148         : UpdatableInset(in, same_id), lt(0), in_update(false), do_resize(0),
 149           do_reinit(false)
 150 {
 151         par = 0;
 152         init(&in, same_id);
 153 }
 154
 155
 156 InsetText & InsetText::operator=(InsetText const & it)
 157 {
 158         init(&it);
 159         return * this;
 160 }
 161
 162
 163 void InsetText::init(InsetText const * ins, bool same_id)
 164 {
 165         if (ins) {
 166                 setParagraphData(ins->par, same_id);
 167                 autoBreakRows = ins->autoBreakRows;
 168                 drawFrame_ = ins->drawFrame_;
 169                 frame_color = ins->frame_color;
 170                 if (same_id)
 171                         id_ = ins->id_;
 172         } else {
 173                 Paragraph * p = par;
 174                 while (p) {
 175                         p->setInsetOwner(this);
 176                         p = p->next();
 177                 }
 178                 the_locking_inset = 0;
 179                 drawFrame_ = NEVER;
 180                 frame_color = LColor::insetframe;
 181                 autoBreakRows = false;
 182         }
 183         top_y = 0;
 184         insetAscent = 0;
 185         insetDescent = 0;
 186         insetWidth = 0;
 187         old_max_width = 0;
 188         no_selection = false;
 189         need_update = FULL;
 190         drawTextXOffset = 0;
 191         drawTextYOffset = 0;
 192         xpos = 0.0;
 193         locked = false;
 194         old_par = 0;
 195         last_drawn_width = -1;
 196         frame_is_visible = false;
 197         cached_bview = 0;
 198         sstate.lpar = 0;
 199         in_insetAllowed = false;
 200 }
 201
 202
 203 InsetText::~InsetText()
 204 {
 205         cached_bview = 0;
 206
 207         // NOTE
 208
 209         while (par) {
 210                 Paragraph * tmp = par->next();
 211                 delete par;
 212                 par = tmp;
 213         }
 214 }
 215
 216
 217 void InsetText::clear()
 218 {
 219         while (par) {
 220                 Paragraph * tmp = par->next();
 221                 delete par;
 222                 par = tmp;
 223         }
 224         par = new Paragraph;
 225         reinitLyXText();
 226         need_update = INIT;
 227 }
 228
 229
 230 Inset * InsetText::clone(Buffer const &, bool same_id) const
 231 {
 232         return  new InsetText(*this, same_id);
 233 }
 234
 235
 236 void InsetText::write(Buffer const * buf, ostream & os) const
 237 {
 238         os << "Text\n";
 239         writeParagraphData(buf, os);
 240 }
 241
 242
 243 void InsetText::writeParagraphData(Buffer const * buf, ostream & os) const
 244 {
 245         par->writeFile(buf, os, buf->params, 0);
 246 }
 247
 248
 249 void InsetText::read(Buffer const * buf, LyXLex & lex)
 250 {
 251         string token;
 252         int pos = 0;
 253         Paragraph * return_par = 0;
 254         Paragraph::depth_type depth = 0;
 255         LyXFont font(LyXFont::ALL_INHERIT);
 256
 257         clear();
 258
 259         while (lex.isOK()) {
 260                 lex.nextToken();
 261                 token = lex.getString();
 262                 if (token.empty())
 263                         continue;
 264                 if (token == "\\end_inset") {
 265 #ifndef NO_COMPABILITY
 266                         const_cast<Buffer*>(buf)->insertErtContents(par, pos, false);
 267 #endif
 268                         break;
 269                 }
 270
 271                 if (const_cast<Buffer*>(buf)->
 272                         parseSingleLyXformat2Token(lex, par, return_par,
 273                                                    token, pos, depth, font)) {
 274                         // the_end read this should NEVER happen
 275                         lex.printError("\\the_end read in inset! Error in document!");
 276                         return;
 277                 }
 278         }
 279         if (!return_par)
 280                 return_par = par;
 281         par = return_par;
 282         while (return_par) {
 283                 return_par->setInsetOwner(this);
 284                 return_par = return_par->next();
 285         }
 286
 287         if (token != "\\end_inset") {
 288                 lex.printError("Missing \\end_inset at this point. "
 289                                            "Read: `$$Token'");
 290         }
 291         need_update = FULL;
 292 }
 293
 294
 295 int InsetText::ascent(BufferView * bv, LyXFont const &) const
 296 {
 297         insetAscent = getLyXText(bv)->firstRow()->ascent_of_text() +
 298                 TEXT_TO_INSET_OFFSET;
 299         return insetAscent;
 300 }
 301
 302
 303 int InsetText::descent(BufferView * bv, LyXFont const &) const
 304 {
 305         LyXText * llt = getLyXText(bv);
 306         insetDescent = llt->height - llt->firstRow()->ascent_of_text() +
 307                 TEXT_TO_INSET_OFFSET;
 308         return insetDescent;
 309 }
 310
 311
 312 int InsetText::width(BufferView * bv, LyXFont const &) const
 313 {
 314         insetWidth = max(textWidth(bv), (int)getLyXText(bv)->width) +
 315                 (2 * TEXT_TO_INSET_OFFSET);
 316         insetWidth = max(insetWidth, 10);
 317         return insetWidth;
 318 }
 319
 320
 321 int InsetText::textWidth(BufferView * bv, bool fordraw) const
 322 {
 323         int w;
 324         if (!autoBreakRows) {
 325                 w = -1;
 326         } else {
 327                 w = getMaxWidth(bv, this);
 328         }
 329         if (fordraw) {
 330                 return max(w - (2 * TEXT_TO_INSET_OFFSET),
 331                            (int)getLyXText(bv)->width);
 332         } else if (w < 0) {
 333             return -1;
 334         }
 335         return w - (2 * TEXT_TO_INSET_OFFSET);
 336 }
 337
 338
 339 void InsetText::draw(BufferView * bv, LyXFont const & f,
 340                      int baseline, float & x, bool cleared) const
 341 {
 342         if (nodraw())
 343                 return;
 344
 345         Painter & pain = bv->painter();
 346
 347         // this is the first thing we have to ask because if the x pos
 348         // changed we have to do a complete rebreak of the text as we
 349         // may have few space to draw in. Well we should check on this too
 350         int old_x = top_x;
 351         if (top_x != int(x)) {
 352                 top_x = int(x);
 353                 int nw = getMaxWidth(bv, this);
 354                 if (nw > 0 && old_max_width != nw) {
 355                         need_update = INIT;
 356                         old_max_width = nw;
 357                         bv->text->status(bv, LyXText::CHANGED_IN_DRAW);
 358                         topx_set = true;
 359                         return;
 360                 } else {
 361                         top_x = old_x;
 362                 }
 363         }
 364
 365         // call these methods so that insetWidth, insetAscent and
 366         // insetDescent have the right values.
 367         width(bv, f);
 368         ascent(bv, f);
 369         descent(bv, f);
 370
 371         // repaint the background if needed
 372         if (cleared && backgroundColor() != LColor::background) {
 373                 top_x = int(x);
 374                 clearInset(bv, baseline, cleared);
 375                 top_x = old_x;
 376         }
 377
 378         // no draw is necessary !!!
 379         if ((drawFrame_ == LOCKED) && !locked && !par->size()) {
 380                 top_x = int(x);
 381                 topx_set = true;
 382                 top_baseline = baseline;
 383                 x += width(bv, f);
 384                 if (need_update & CLEAR_FRAME)
 385                         clearFrame(pain, cleared);
 386                 need_update = NONE;
 387                 return;
 388         }
 389
 390         xpos = x;
 391         if (!owner())
 392                 x += static_cast<float>(scroll());
 393
 394         // if top_x differs we did it already
 395         if (!cleared && (top_x == int(x))
 396             && ((need_update&(INIT|FULL)) || (top_baseline != baseline)
 397                 ||(last_drawn_width != insetWidth))) {
 398                 // Condition necessary to eliminate bug 59 attachment 37
 399                 if (baseline > 0) clearInset(bv, baseline, cleared);
 400         }
 401
 402         top_x = int(x);
 403         topx_set = true;
 404         if (cleared)
 405                 frame_is_visible = false;
 406
 407         if (!cleared && (need_update == NONE)) {
 408                 if (locked)
 409                         drawFrame(pain, cleared);
 410                 return;
 411         }
 412
 413         top_baseline = baseline;
 414         top_y = baseline - insetAscent;
 415
 416         if (last_drawn_width != insetWidth) {
 417                 if (!cleared)
 418                         clearInset(bv, baseline, cleared);
 419                 need_update |= FULL;
 420                 last_drawn_width = insetWidth;
 421         }
 422
 423         if (the_locking_inset && (cpar(bv) == inset_par)
 424                 && (cpos(bv) == inset_pos)) {
 425                 inset_x = cx(bv) - top_x + drawTextXOffset;
 426                 inset_y = cy(bv) + drawTextYOffset;
 427         }
 428         if (!cleared && (need_update == CURSOR)
 429             && !getLyXText(bv)->selection.set()) {
 430                 drawFrame(pain, cleared);
 431                 x += insetWidth;
 432                 need_update = NONE;
 433                 return;
 434         }
 435         bool clear = false;
 436         if (!lt) {
 437                 lt = getLyXText(bv);
 438                 clear = true;
 439         }
 440         x += TEXT_TO_INSET_OFFSET;
 441
 442         Row * row = lt->firstRow();
 443         int y_offset = baseline - row->ascent_of_text();
 444         int ph = pain.paperHeight();
 445         int first = 0;
 446         int y = y_offset;
 447         while ((row != 0) && ((y+row->height()) <= 0)) {
 448                 y += row->height();
 449                 first += row->height();
 450                 row = row->next();
 451         }
 452         if (y_offset < 0)
 453                 y_offset = y;
 454         lt->first = first;
 455         if (cleared || (need_update&(INIT|FULL))) {
 456                 int yf = y_offset;
 457                 y = 0;
 458                 while ((row != 0) && (yf < ph)) {
 459                         lt->getVisibleRow(bv, y+y_offset, int(x), row,
 460                                                 y+first, cleared);
 461                         y += row->height();
 462                         yf += row->height();
 463                         row = row->next();
 464                 }
 465         } else if (!locked) {
 466                 if (need_update & CURSOR) {
 467                         bv->screen()->toggleSelection(lt, bv, true, y_offset,int(x));
 468                         lt->clearSelection();
 469                         lt->selection.cursor = lt->cursor;
 470                 }
 471                 bv->screen()->update(lt, bv, y_offset, int(x));
 472         } else {
 473                 locked = false;
 474                 if (need_update & SELECTION) {
 475                         bv->screen()->toggleToggle(lt, bv, y_offset, int(x));
 476                 } else if (need_update & CURSOR) {
 477                         bv->screen()->toggleSelection(lt, bv, true, y_offset,int(x));
 478                         lt->clearSelection();
 479                         lt->selection.cursor = lt->cursor;
 480                 }
 481                 bv->screen()->update(lt, bv, y_offset, int(x));
 482                 locked = true;
 483         }
 484
 485         lt->refresh_y = 0;
 486         lt->status(bv, LyXText::UNCHANGED);
 487         if ((need_update != CURSOR_PAR) &&
 488             ((drawFrame_ == ALWAYS) || ((drawFrame_ == LOCKED) && locked))) {
 489                 drawFrame(pain, cleared);
 490         } else if (need_update & CLEAR_FRAME) {
 491                 clearFrame(pain, cleared);
 492         }
 493
 494         x += insetWidth - TEXT_TO_INSET_OFFSET;
 495
 496         if (bv->text->status() == LyXText::CHANGED_IN_DRAW) {
 497                 need_update |= FULL;
 498         } else if (need_update != INIT) {
 499                 need_update = NONE;
 500         }
 501         if (clear)
 502                 lt = 0;
 503 }
 504
 505
 506 void InsetText::drawFrame(Painter & pain, bool cleared) const
 507 {
 508         static int const ttoD2 = TEXT_TO_INSET_OFFSET / 2;
 509         if (!frame_is_visible || cleared) {
 510                 frame_x = top_x + ttoD2;
 511                 frame_y = top_baseline - insetAscent + ttoD2;
 512                 frame_w = insetWidth - TEXT_TO_INSET_OFFSET;
 513                 frame_h = insetAscent + insetDescent - TEXT_TO_INSET_OFFSET;
 514                 pain.rectangle(frame_x, frame_y, frame_w, frame_h,
 515                                frame_color);
 516                 frame_is_visible = true;
 517         }
 518 }
 519
 520
 521 void InsetText::clearFrame(Painter & pain, bool cleared) const
 522 {
 523         if (frame_is_visible) {
 524                 if (!cleared) {
 525                         pain.rectangle(frame_x, frame_y, frame_w, frame_h,
 526                                        backgroundColor());
 527                 }
 528                 frame_is_visible = false;
 529         }
 530 }
 531
 532
 533 void InsetText::update(BufferView * bv, LyXFont const & font, bool reinit)
 534 {
 535         if (in_update) {
 536                 if (reinit && owner()) {
 537                         reinitLyXText();
 538                         owner()->update(bv, font, true);
 539                 }
 540                 return;
 541         }
 542         in_update = true;
 543         if (reinit || need_update == INIT) {
 544                 need_update = FULL;
 545                 // we should put this call where we set need_update to INIT!
 546                 reinitLyXText();
 547                 if (owner())
 548                         owner()->update(bv, font, true);
 549                 in_update = false;
 550                 return;
 551         }
 552         if (the_locking_inset) {
 553                 inset_x = cx(bv) - top_x + drawTextXOffset;
 554                 inset_y = cy(bv) + drawTextYOffset;
 555                 the_locking_inset->update(bv, font, reinit);
 556         }
 557
 558         bool clear = false;
 559         if (!lt) {
 560                 lt = getLyXText(bv);
 561                 clear = true;
 562         }
 563         if ((need_update & CURSOR_PAR) && (lt->status() == LyXText::UNCHANGED) &&
 564                 the_locking_inset)
 565         {
 566                 lt->updateInset(bv, the_locking_inset);
 567         }
 568         if (lt->status() == LyXText::NEED_MORE_REFRESH)
 569                 need_update |= FULL;
 570         if (clear)
 571                 lt = 0;
 572         in_update = false;
 573 }
 574
 575
 576 void InsetText::setUpdateStatus(BufferView * bv, int what) const
 577 {
 578         // this does nothing dangerous so use only a localized buffer
 579         LyXText * llt = getLyXText(bv);
 580
 581         need_update |= what;
 582         // we have to redraw us full if our LyXText NEEDS_MORE_REFRES or
 583         // if we don't break row so that we only have one row to update!
 584         if ((llt->status() == LyXText::NEED_MORE_REFRESH) ||
 585             (!autoBreakRows &&
 586              (llt->status() == LyXText::NEED_VERY_LITTLE_REFRESH)))
 587         {
 588                 need_update |= FULL;
 589         } else if (llt->status() == LyXText::NEED_VERY_LITTLE_REFRESH) {
 590                 need_update |= CURSOR_PAR;
 591         }
 592
 593         // this to not draw a selection when we redraw all of it!
 594         if (need_update & CURSOR && !(need_update & SELECTION)) {
 595                 if (llt->selection.set())
 596                         need_update = FULL;
 597                 llt->clearSelection();
 598         }
 599 }
 600
 601
 602 void InsetText::updateLocal(BufferView * bv, int what, bool mark_dirty) const
 603 {
 604         if (!autoBreakRows && par->next())
 605                 collapseParagraphs(bv->buffer()->params);
 606         bool clear = false;
 607         if (!lt) {
 608                 lt = getLyXText(bv);
 609                 clear = true;
 610         }
 611         lt->fullRebreak(bv);
 612         setUpdateStatus(bv, what);
 613         bool flag = (((need_update != CURSOR) && (need_update != NONE)) ||
 614                      (lt->status() != LyXText::UNCHANGED) || lt->selection.set());
 615         if (clear)
 616                 lt = 0;
 617         if (flag)
 618                 bv->updateInset(const_cast<InsetText *>(this), mark_dirty);
 619         else
 620                 bv->fitCursor();
 621
 622         if (need_update == CURSOR)
 623                 need_update = NONE;
 624         bv->owner()->showState();
 625         bv->owner()->updateMenubar();
 626         bv->owner()->updateToolbar();
 627         if (old_par != cpar(bv)) {
 628                 bv->owner()->setLayout(cpar(bv)->getLayout());
 629                 old_par = cpar(bv);
 630         }
 631 }
 632
 633
 634 string const InsetText::editMessage() const
 635 {
 636         return _("Opened Text Inset");
 637 }
 638
 639
 640 void InsetText::edit(BufferView * bv, int x, int y, unsigned int button)
 641 {
 642         UpdatableInset::edit(bv, x, y, button);
 643
 644         if (!bv->lockInset(this)) {
 645                 lyxerr[Debug::INSETS] << "Cannot lock inset" << endl;
 646                 return;
 647         }
 648         locked = true;
 649         the_locking_inset = 0;
 650         inset_pos = inset_x = inset_y = 0;
 651         inset_boundary = false;
 652         inset_par = 0;
 653         old_par = 0;
 654         int tmp_y = (y < 0) ? 0 : y;
 655         bool clear = false;
 656         if (!lt) {
 657                 lt = getLyXText(bv);
 658                 clear = true;
 659         }
 660         if (!checkAndActivateInset(bv, x, tmp_y, button))
 661                 lt->setCursorFromCoordinates(bv, x - drawTextXOffset,
 662                                             y + insetAscent);
 663         lt->clearSelection();
 664         finishUndo();
 665         // If the inset is empty set the language of the current font to the
 666         // language to the surronding text (if different).
 667         if (par->size() == 0 && !par->next() &&
 668                 bv->getParentLanguage(this) != lt->current_font.language())
 669         {
 670                 LyXFont font(LyXFont::ALL_IGNORE);
 671                 font.setLanguage(bv->getParentLanguage(this));
 672                 setFont(bv, font, false);
 673         }
 674         showInsetCursor(bv);
 675         if (clear)
 676                 lt = 0;
 677         updateLocal(bv, CURSOR, false);
 678 }
 679
 680
 681 void InsetText::edit(BufferView * bv, bool front)
 682 {
 683         UpdatableInset::edit(bv, front);
 684
 685         if (!bv->lockInset(this)) {
 686                 lyxerr[Debug::INSETS] << "Cannot lock inset" << endl;
 687                 return;
 688         }
 689         locked = true;
 690         the_locking_inset = 0;
 691         inset_pos = inset_x = inset_y = 0;
 692         inset_boundary = false;
 693         inset_par = 0;
 694         old_par = 0;
 695         bool clear = false;
 696         if (!lt) {
 697                 lt = getLyXText(bv);
 698                 clear = true;
 699         }
 700         if (front)
 701                 lt->setCursor(bv, par, 0);
 702         else {
 703                 Paragraph * p = par;
 704                 while (p->next())
 705                         p = p->next();
 706 //              int const pos = (p->size() ? p->size()-1 : p->size());
 707                 lt->setCursor(bv, p, p->size());
 708         }
 709         lt->clearSelection();
 710         finishUndo();
 711         // If the inset is empty set the language of the current font to the
 712         // language to the surronding text (if different).
 713         if (par->size() == 0 && !par->next() &&
 714                 bv->getParentLanguage(this) != lt->current_font.language()) {
 715                 LyXFont font(LyXFont::ALL_IGNORE);
 716                 font.setLanguage(bv->getParentLanguage(this));
 717                 setFont(bv, font, false);
 718         }
 719         showInsetCursor(bv);
 720         if (clear)
 721                 lt = 0;
 722         updateLocal(bv, CURSOR, false);
 723 }
 724
 725
 726 void InsetText::insetUnlock(BufferView * bv)
 727 {
 728         if (the_locking_inset) {
 729                 the_locking_inset->insetUnlock(bv);
 730                 the_locking_inset = 0;
 731         }
 732         hideInsetCursor(bv);
 733         no_selection = false;
 734         locked = false;
 735         int code;
 736         if (drawFrame_ == LOCKED)
 737                 code = CURSOR|CLEAR_FRAME;
 738         else
 739                 code = CURSOR;
 740         bool clear = false;
 741         if (!lt) {
 742                 lt = getLyXText(bv);
 743                 clear = true;
 744         }
 745         if (lt->selection.set()) {
 746                 lt->clearSelection();
 747                 code = FULL;
 748         } else if (owner()) {
 749                 bv->owner()->setLayout(owner()->getLyXText(bv)
 750                                        ->cursor.par()->getLayout());
 751         } else
 752                 bv->owner()->setLayout(bv->text->cursor.par()->getLayout());
 753         // hack for deleteEmptyParMech
 754         lt->setCursor(bv, par, 0);
 755         if (clear)
 756                 lt = 0;
 757         updateLocal(bv, code, false);
 758 }
 759
 760 void InsetText::lockInset(BufferView * bv, UpdatableInset * inset)
 761 {
 762         the_locking_inset = inset;
 763         inset_x = cx(bv) - top_x + drawTextXOffset;
 764         inset_y = cy(bv) + drawTextYOffset;
 765         inset_pos = cpos(bv);
 766         inset_par = cpar(bv);
 767         inset_boundary = cboundary(bv);
 768         updateLocal(bv, CURSOR, false);
 769 }
 770
 771
 772 bool InsetText::lockInsetInInset(BufferView * bv, UpdatableInset * inset)
 773 {
 774         lyxerr[Debug::INSETS] << "InsetText::LockInsetInInset("
 775                               << inset << "): ";
 776         if (!inset)
 777                 return false;
 778         if (!the_locking_inset) {
 779                 Paragraph * p = par;
 780                 int const id = inset->id();
 781                 while(p) {
 782                         Paragraph::inset_iterator it =
 783                                 p->inset_iterator_begin();
 784                         Paragraph::inset_iterator const end =
 785                                 p->inset_iterator_end();
 786                         for (; it != end; ++it) {
 787                                 if ((*it) == inset) {
 788                                         getLyXText(bv)->setCursorIntern(bv, p, it.getPos());
 789                                         lockInset(bv, inset);
 790                                         return true;
 791                                 }
 792                                 if ((*it)->getInsetFromID(id)) {
 793                                         getLyXText(bv)->setCursorIntern(bv, p, it.getPos());
 794                                         lockInset(bv, static_cast<UpdatableInset *>(*it));
 795                                         return the_locking_inset->lockInsetInInset(bv, inset);
 796                                 }
 797                         }
 798                         p = p->next();
 799                 }
 800                 return false;
 801         }
 802         if (inset == cpar(bv)->getInset(cpos(bv))) {
 803                 lyxerr[Debug::INSETS] << "OK" << endl;
 804                 lockInset(bv, inset);
 805                 return true;
 806         } else if (the_locking_inset && (the_locking_inset == inset)) {
 807                 if (cpar(bv) == inset_par && cpos(bv) == inset_pos) {
 808                         lyxerr[Debug::INSETS] << "OK" << endl;
 809                         inset_x = cx(bv) - top_x + drawTextXOffset;
 810                         inset_y = cy(bv) + drawTextYOffset;
 811                 } else {
 812                         lyxerr[Debug::INSETS] << "cursor.pos != inset_pos" << endl;
 813                 }
 814         } else if (the_locking_inset) {
 815                 lyxerr[Debug::INSETS] << "MAYBE" << endl;
 816                 return the_locking_inset->lockInsetInInset(bv, inset);
 817         }
 818         lyxerr[Debug::INSETS] << "NOT OK" << endl;
 819         return false;
 820 }
 821
 822
 823 bool InsetText::unlockInsetInInset(BufferView * bv, UpdatableInset * inset,
 824                                    bool lr)
 825 {
 826         if (!the_locking_inset)
 827                 return false;
 828         if (the_locking_inset == inset) {
 829                 the_locking_inset->insetUnlock(bv);
 830                 getLyXText(bv)->updateInset(bv, inset);
 831                 the_locking_inset = 0;
 832                 if (lr)
 833                         moveRight(bv, false);
 834                 old_par = 0; // force layout setting
 835                 if (scroll())
 836                         scroll(bv, 0.0F);
 837                 else
 838                         updateLocal(bv, CURSOR, false);
 839                 return true;
 840         }
 841         return the_locking_inset->unlockInsetInInset(bv, inset, lr);
 842 }
 843
 844
 845 bool InsetText::updateInsetInInset(BufferView * bv, Inset * inset)
 846 {
 847         if (!autoBreakRows && par->next())
 848                 collapseParagraphs(bv->buffer()->params);
 849         if (inset == this)
 850                 return true;
 851         bool clear = false;
 852         if (!lt) {
 853                 lt = getLyXText(bv);
 854                 clear = true;
 855         }
 856         if (!the_locking_inset) {
 857                 bool found = lt->updateInset(bv, inset);
 858                 if (clear)
 859                         lt = 0;
 860                 if (found)
 861                         setUpdateStatus(bv, NONE);
 862                 return found;
 863         }
 864         if (the_locking_inset != inset) {
 865                 bool found = the_locking_inset->updateInsetInInset(bv, inset);
 866                 if (clear)
 867                         lt = 0;
 868                 if (found)
 869                         setUpdateStatus(bv, CURSOR_PAR);
 870                 return found;
 871         }
 872         bool found = lt->updateInset(bv, inset);
 873         if (clear)
 874                 lt = 0;
 875         if (found) {
 876                 setUpdateStatus(bv, CURSOR_PAR);
 877                 if (cpar(bv) == inset_par && cpos(bv) == inset_pos) {
 878                         inset_x = cx(bv) - top_x + drawTextXOffset;
 879                         inset_y = cy(bv) + drawTextYOffset;
 880                 }
 881         }
 882         return found;
 883 }
 884
 885
 886 void InsetText::insetButtonPress(BufferView * bv, int x, int y, int button)
 887 {
 888         no_selection = true;
 889
 890         // use this to check mouse motion for selection!
 891         mouse_x = x;
 892         mouse_y = y;
 893
 894         int tmp_x = x - drawTextXOffset;
 895         int tmp_y = y + insetAscent - getLyXText(bv)->first;
 896         Inset * inset = bv->checkInsetHit(getLyXText(bv), tmp_x, tmp_y);
 897
 898         hideInsetCursor(bv);
 899         if (the_locking_inset) {
 900                 if (the_locking_inset == inset) {
 901                         the_locking_inset->insetButtonPress(bv,
 902                                                             x - inset_x,
 903                                                             y - inset_y,
 904                                                             button);
 905                         no_selection = false;
 906                         return;
 907                 } else if (inset) {
 908                         // otherwise unlock the_locking_inset and lock the new inset
 909                         the_locking_inset->insetUnlock(bv);
 910                         inset_x = cx(bv) - top_x + drawTextXOffset;
 911                         inset_y = cy(bv) + drawTextYOffset;
 912                         the_locking_inset = 0;
 913                         inset->insetButtonPress(bv, x - inset_x,
 914                                                 y - inset_y, button);
 915                         inset->edit(bv, x - inset_x, y - inset_y, button);
 916                         if (the_locking_inset)
 917                                 updateLocal(bv, CURSOR, false);
 918                         no_selection = false;
 919                         return;
 920                 }
 921                 // otherwise only unlock the_locking_inset
 922                 the_locking_inset->insetUnlock(bv);
 923                 the_locking_inset = 0;
 924         }
 925         if (bv->theLockingInset()) {
 926                 if (isHighlyEditableInset(inset)) {
 927                         UpdatableInset * uinset = static_cast<UpdatableInset*>(inset);
 928                         inset_x = cx(bv) - top_x + drawTextXOffset;
 929                         inset_y = cy(bv) + drawTextYOffset;
 930                         inset_pos = cpos(bv);
 931                         inset_par = cpar(bv);
 932                         inset_boundary = cboundary(bv);
 933                         the_locking_inset = uinset;
 934                         uinset->insetButtonPress(bv, x - inset_x, y - inset_y,
 935                                                  button);
 936                         uinset->edit(bv, x - inset_x, y - inset_y, 0);
 937                         if (the_locking_inset)
 938                                 updateLocal(bv, CURSOR, false);
 939                         no_selection = false;
 940                         return;
 941                 }
 942         }
 943         if (!inset) { // && (button == 2)) {
 944                 bool paste_internally = false;
 945                 if ((button == 2) && getLyXText(bv)->selection.set()) {
 946                         localDispatch(bv, LFUN_COPY, "");
 947                         paste_internally = true;
 948                 }
 949                 bool clear = false;
 950                 if (!lt) {
 951                         lt = getLyXText(bv);
 952                         clear = true;
 953                 }
 954
 955                 lt->setCursorFromCoordinates(bv, x - drawTextXOffset,
 956                                              y + insetAscent);
 957                 // set the selection cursor!
 958                 lt->selection.cursor = lt->cursor;
 959                 lt->cursor.x_fix(lt->cursor.x());
 960
 961                 if (lt->selection.set()) {
 962                         lt->clearSelection();
 963                         if (clear)
 964                                 lt = 0;
 965                         updateLocal(bv, FULL, false);
 966                 } else {
 967                         lt->clearSelection();
 968                         if (clear)
 969                                 lt = 0;
 970                         updateLocal(bv, CURSOR, false);
 971                 }
 972                 bv->owner()->setLayout(cpar(bv)->getLayout());
 973                 old_par = cpar(bv);
 974                 // Insert primary selection with middle mouse
 975                 // if there is a local selection in the current buffer,
 976                 // insert this
 977                 if (button == 2) {
 978                         if (paste_internally)
 979                                 localDispatch(bv, LFUN_PASTE, "");
 980                         else
 981                                 localDispatch(bv, LFUN_PASTESELECTION,
 982                                               "paragraph");
 983                 }
 984         } else {
 985                 getLyXText(bv)->clearSelection();
 986         }
 987         showInsetCursor(bv);
 988         no_selection = false;
 989 }
 990
 991
 992 bool InsetText::insetButtonRelease(BufferView * bv, int x, int y, int button)
 993 {
 994         if (the_locking_inset) {
 995                 return the_locking_inset->insetButtonRelease(bv,
 996                                                              x - inset_x, y - inset_y,
 997                                                              button);
 998         }
 999         int tmp_x = x - drawTextXOffset;
1000         int tmp_y = y + insetAscent - getLyXText(bv)->first;
1001         Inset * inset = bv->checkInsetHit(getLyXText(bv), tmp_x, tmp_y);
1002         bool ret = false;
1003         if (inset) {
1004                 if (isHighlyEditableInset(inset)) {
1005                         ret = inset->insetButtonRelease(bv, x - inset_x,
1006                                                         y - inset_y, button);
1007                 } else {
1008                         inset_x = cx(bv) - top_x + drawTextXOffset;
1009                         inset_y = cy(bv) + drawTextYOffset;
1010                         ret = inset->insetButtonRelease(bv, x - inset_x,
1011                                                         y - inset_y, button);
1012                         inset->edit(bv, x - inset_x,
1013                                     y - inset_y, button);
1014                 }
1015                 updateLocal(bv, CURSOR_PAR, false);
1016         }
1017         return ret;
1018 }
1019
1020
1021 void InsetText::insetMotionNotify(BufferView * bv, int x, int y, int state)
1022 {
1023         if (no_selection || ((mouse_x == x) && (mouse_y == y)))
1024                 return;
1025         if (the_locking_inset) {
1026                 the_locking_inset->insetMotionNotify(bv, x - inset_x,
1027                                                      y - inset_y,state);
1028                 return;
1029         }
1030         bool clear = false;
1031         if (!lt) {
1032                 lt = getLyXText(bv);
1033                 clear = true;
1034         }
1035         hideInsetCursor(bv);
1036         LyXCursor cur = lt->cursor;
1037         lt->setCursorFromCoordinates(bv, x - drawTextXOffset, y + insetAscent);
1038         if (cur == lt->cursor) {
1039                 if (clear)
1040                         lt = 0;
1041                 return;
1042         }
1043         lt->setSelection(bv);
1044         bool flag = (lt->toggle_cursor.par() != lt->toggle_end_cursor.par() ||
1045                                  lt->toggle_cursor.pos() != lt->toggle_end_cursor.pos());
1046         if (clear)
1047                 lt = 0;
1048         if (flag) {
1049                 updateLocal(bv, SELECTION, false);
1050         }
1051         showInsetCursor(bv);
1052 }
1053
1054
1055 void InsetText::insetKeyPress(XKeyEvent * xke)
1056 {
1057         if (the_locking_inset) {
1058                 the_locking_inset->insetKeyPress(xke);
1059                 return;
1060         }
1061 }
1062
1063
1064 UpdatableInset::RESULT
1065 InsetText::localDispatch(BufferView * bv,
1066                          kb_action action, string const & arg)
1067 {
1068         bool was_empty = par->size() == 0 && !par->next();
1069         no_selection = false;
1070         UpdatableInset::RESULT
1071                 result= UpdatableInset::localDispatch(bv, action, arg);
1072         if (result != UNDISPATCHED) {
1073                 return DISPATCHED;
1074         }
1075
1076         result = DISPATCHED;
1077         if ((action < 0) && arg.empty())
1078                 return FINISHED;
1079
1080         if (the_locking_inset) {
1081                 result = the_locking_inset->localDispatch(bv, action, arg);
1082                 if (result == DISPATCHED_NOUPDATE)
1083                         return result;
1084                 else if (result == DISPATCHED) {
1085                         updateLocal(bv, CURSOR_PAR, false);
1086                         return result;
1087                 } else if (result >= FINISHED) {
1088                         switch(result) {
1089                         case FINISHED_RIGHT:
1090                                 moveRightIntern(bv, false, false);
1091                                 result = DISPATCHED;
1092                                 break;
1093                         case FINISHED_UP:
1094                                 if ((result = moveUp(bv)) >= FINISHED) {
1095                                         updateLocal(bv, CURSOR, false);
1096                                         bv->unlockInset(this);
1097                                 }
1098                                 break;
1099                         case FINISHED_DOWN:
1100                                 if ((result = moveDown(bv)) >= FINISHED) {
1101                                         updateLocal(bv, CURSOR, false);
1102                                         bv->unlockInset(this);
1103                                 }
1104                                 break;
1105                         default:
1106                                 result = DISPATCHED;
1107                                 break;
1108                         }
1109                         the_locking_inset = 0;
1110 #ifdef WITH_WARNINGS
1111 #warning I changed this to always return Dispatched maybe it is wrong (20011001 Jug)
1112 #endif
1113                         return result;
1114                 }
1115         }
1116         hideInsetCursor(bv);
1117         bool clear = false;
1118         if (!lt) {
1119                 lt = getLyXText(bv);
1120                 clear = true;
1121         }
1122         int updwhat = 0;
1123         int updflag = false;
1124         switch (action) {
1125         // Normal chars
1126         case LFUN_SELFINSERT:
1127                 if (bv->buffer()->isReadonly()) {
1128 //          setErrorMessage(N_("Document is read only"));
1129                         break;
1130                 }
1131                 if (!arg.empty()) {
1132                         /* Automatically delete the currently selected
1133                          * text and replace it with what is being
1134                          * typed in now. Depends on lyxrc settings
1135                          * "auto_region_delete", which defaults to
1136                          * true (on). */
1137
1138                         setUndo(bv, Undo::INSERT,
1139                                 lt->cursor.par(), lt->cursor.par()->next());
1140                         bv->setState();
1141                         if (lyxrc.auto_region_delete) {
1142                                 if (lt->selection.set()) {
1143                                         lt->cutSelection(bv, false);
1144                                 }
1145                         }
1146                         lt->clearSelection();
1147                         for (string::size_type i = 0; i < arg.length(); ++i) {
1148                                 bv->owner()->getIntl()->getTrans().TranslateAndInsert(arg[i], lt);
1149                         }
1150                 }
1151                 lt->selection.cursor = lt->cursor;
1152                 updwhat = CURSOR_PAR;
1153                 updflag = true;
1154                 result = DISPATCHED_NOUPDATE;
1155                 break;
1156                 // --- Cursor Movements -----------------------------------
1157         case LFUN_RIGHTSEL:
1158                 finishUndo();
1159                 moveRight(bv, false, true);
1160                 lt->setSelection(bv);
1161                 updwhat = SELECTION;
1162                 break;
1163         case LFUN_RIGHT:
1164                 result = moveRight(bv);
1165                 finishUndo();
1166                 updwhat = CURSOR;
1167                 break;
1168         case LFUN_LEFTSEL:
1169                 finishUndo();
1170                 moveLeft(bv, false, true);
1171                 lt->setSelection(bv);
1172                 updwhat = SELECTION;
1173                 break;
1174         case LFUN_LEFT:
1175                 finishUndo();
1176                 result = moveLeft(bv);
1177                 updwhat = CURSOR;
1178                 break;
1179         case LFUN_DOWNSEL:
1180                 finishUndo();
1181                 moveDown(bv);
1182                 lt->setSelection(bv);
1183                 updwhat = SELECTION;
1184                 break;
1185         case LFUN_DOWN:
1186                 finishUndo();
1187                 result = moveDown(bv);
1188                 updwhat = CURSOR;
1189                 break;
1190         case LFUN_UPSEL:
1191                 finishUndo();
1192                 moveUp(bv);
1193                 lt->setSelection(bv);
1194                 updwhat = SELECTION;
1195                 break;
1196         case LFUN_UP:
1197                 finishUndo();
1198                 result = moveUp(bv);
1199                 updwhat = CURSOR;
1200                 break;
1201         case LFUN_HOME:
1202                 finishUndo();
1203                 lt->cursorHome(bv);
1204                 updwhat = CURSOR;
1205                 break;
1206         case LFUN_END:
1207                 lt->cursorEnd(bv);
1208                 updwhat = CURSOR;
1209                 break;
1210         case LFUN_BACKSPACE: {
1211                 setUndo(bv, Undo::DELETE,
1212                         lt->cursor.par(), lt->cursor.par()->next());
1213                 if (lt->selection.set())
1214                         lt->cutSelection(bv);
1215                 else
1216                         lt->backspace(bv);
1217                 updwhat = CURSOR_PAR;
1218                 updflag = true;
1219         }
1220         break;
1221
1222         case LFUN_DELETE: {
1223                 setUndo(bv, Undo::DELETE,
1224                         lt->cursor.par(), lt->cursor.par()->next());
1225                 if (lt->selection.set()) {
1226                         lt->cutSelection(bv);
1227                 } else {
1228                         lt->Delete(bv);
1229                 }
1230                 updwhat = CURSOR_PAR;
1231                 updflag = true;
1232         }
1233         break;
1234
1235         case LFUN_CUT: {
1236                 setUndo(bv, Undo::DELETE,
1237                         lt->cursor.par(), lt->cursor.par()->next());
1238                 lt->cutSelection(bv);
1239                 updwhat = CURSOR_PAR;
1240                 updflag = true;
1241         }
1242         break;
1243
1244         case LFUN_COPY:
1245                 finishUndo();
1246                 lt->copySelection(bv);
1247                 updwhat = CURSOR_PAR;
1248                 break;
1249         case LFUN_PASTESELECTION:
1250         {
1251                 string const clip(bv->getClipboard());
1252
1253                 if (clip.empty())
1254                         break;
1255                 if (arg == "paragraph") {
1256                         lt->insertStringAsParagraphs(bv, clip);
1257                 } else {
1258                         lt->insertStringAsLines(bv, clip);
1259                 }
1260                 updwhat = CURSOR_PAR;
1261                 updflag = true;
1262                 break;
1263         }
1264         case LFUN_PASTE: {
1265                 if (!autoBreakRows) {
1266
1267                         if (CutAndPaste::nrOfParagraphs() > 1) {
1268                                 Alert::alert(_("Impossible operation"),
1269                                                    _("Cannot include more than one paragraph!"),
1270                                                    _("Sorry."));
1271                                 break;
1272                         }
1273                 }
1274                 setUndo(bv, Undo::INSERT,
1275                         lt->cursor.par(), lt->cursor.par()->next());
1276                 lt->pasteSelection(bv);
1277                 updwhat = CURSOR_PAR;
1278                 updflag = true;
1279         }
1280         break;
1281
1282         case LFUN_BREAKPARAGRAPH:
1283                 if (!autoBreakRows) {
1284                         result = DISPATCHED;
1285                         break;
1286                 }
1287                 lt->breakParagraph(bv, 0);
1288                 updwhat = FULL;
1289                 updflag = true;
1290                 break;
1291         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
1292                 if (!autoBreakRows) {
1293                         result = DISPATCHED;
1294                         break;
1295                 }
1296                 lt->breakParagraph(bv, 1);
1297                 updwhat = FULL;
1298                 updflag = true;
1299                 break;
1300
1301         case LFUN_BREAKLINE: {
1302                 if (!autoBreakRows) {
1303                         result = DISPATCHED;
1304                         break;
1305                 }
1306                 setUndo(bv, Undo::INSERT,
1307                         lt->cursor.par(), lt->cursor.par()->next());
1308                 lt->insertChar(bv, Paragraph::META_NEWLINE);
1309                 updwhat = CURSOR_PAR;
1310                 updflag = true;
1311         }
1312         break;
1313
1314         case LFUN_LAYOUT:
1315                 // do not set layouts on non breakable textinsets
1316                 if (autoBreakRows) {
1317                         layout_type cur_layout = cpar(bv)->layout;
1318
1319                         // Derive layout number from given argument (string)
1320                         // and current buffer's textclass (number). */
1321                         textclass_type tclass = bv->buffer()->params.textclass;
1322                         std::pair <bool, layout_type> layout =
1323                                 textclasslist.NumberOfLayout(tclass, arg);
1324
1325                         // If the entry is obsolete, use the new one instead.
1326                         if (layout.first) {
1327                                 string obs = textclasslist.Style(tclass,layout.second).
1328                                         obsoleted_by();
1329                                 if (!obs.empty())
1330                                         layout = textclasslist.NumberOfLayout(tclass, obs);
1331                         }
1332
1333                         // see if we found the layout number:
1334                         if (!layout.first) {
1335                                 string const msg = string(N_("Layout ")) + arg + N_(" not known");
1336                                 bv->owner()->getLyXFunc()->dispatch(LFUN_MESSAGE, msg);
1337                                 break;
1338                         }
1339
1340                         if (cur_layout != layout.second) {
1341                                 cur_layout = layout.second;
1342                                 lt->setLayout(bv, layout.second);
1343                                 bv->owner()->setLayout(cpar(bv)->getLayout());
1344                                 updwhat = CURSOR_PAR;
1345                                 updflag = true;
1346                         }
1347                 } else {
1348                         // reset the layout box
1349                         bv->owner()->setLayout(cpar(bv)->getLayout());
1350                 }
1351                 break;
1352         case LFUN_PARAGRAPH_SPACING:
1353                 // This one is absolutely not working. When fiddling with this
1354                 // it also seems to me that the paragraphs inside the insettext
1355                 // inherit bufferparams/paragraphparams in a strange way. (Lgb)
1356         {
1357                 Paragraph * par = lt->cursor.par();
1358                 Spacing::Space cur_spacing = par->params().spacing().getSpace();
1359                 float cur_value = 1.0;
1360                 if (cur_spacing == Spacing::Other) {
1361                         cur_value = par->params().spacing().getValue();
1362                 }
1363
1364                 istringstream istr(arg.c_str());
1365                 string tmp;
1366                 istr >> tmp;
1367                 Spacing::Space new_spacing = cur_spacing;
1368                 float new_value = cur_value;
1369                 if (tmp.empty()) {
1370                         lyxerr << "Missing argument to `paragraph-spacing'"
1371                                    << endl;
1372                 } else if (tmp == "single") {
1373                         new_spacing = Spacing::Single;
1374                 } else if (tmp == "onehalf") {
1375                         new_spacing = Spacing::Onehalf;
1376                 } else if (tmp == "double") {
1377                         new_spacing = Spacing::Double;
1378                 } else if (tmp == "other") {
1379                         new_spacing = Spacing::Other;
1380                         float tmpval = 0.0;
1381                         istr >> tmpval;
1382                         lyxerr << "new_value = " << tmpval << endl;
1383                         if (tmpval != 0.0)
1384                                 new_value = tmpval;
1385                 } else if (tmp == "default") {
1386                         new_spacing = Spacing::Default;
1387                 } else {
1388                         lyxerr << _("Unknown spacing argument: ")
1389                                    << arg << endl;
1390                 }
1391                 if (cur_spacing != new_spacing || cur_value != new_value) {
1392                         par->params().spacing(Spacing(new_spacing, new_value));
1393                         updwhat = CURSOR_PAR;
1394                         updflag = true;
1395                 }
1396         }
1397         break;
1398
1399         default:
1400                 if (!bv->Dispatch(action, arg))
1401                         result = UNDISPATCHED;
1402                 break;
1403         }
1404
1405         if (clear)
1406                 lt = 0;
1407         if (updwhat > 0)
1408                 updateLocal(bv, updwhat, updflag);
1409         /// If the action has deleted all text in the inset, we need to change the
1410         // language to the language of the surronding text.
1411         if (!was_empty && par->size() == 0 && !par->next()) {
1412                 LyXFont font(LyXFont::ALL_IGNORE);
1413                 font.setLanguage(bv->getParentLanguage(this));
1414                 setFont(bv, font, false);
1415         }
1416
1417         if (result < FINISHED) {
1418                 showInsetCursor(bv);
1419         } else
1420                 bv->unlockInset(this);
1421         return result;
1422 }
1423
1424
1425 int InsetText::latex(Buffer const * buf, ostream & os, bool, bool) const
1426 {
1427         TexRow texrow;
1428         buf->latexParagraphs(os, par, 0, texrow);
1429         return texrow.rows();
1430 }
1431
1432
1433 int InsetText::ascii(Buffer const * buf, ostream & os, int linelen) const
1434 {
1435         Paragraph * p = par;
1436         unsigned int lines = 0;
1437
1438         while (p) {
1439                 string const tmp = buf->asciiParagraph(p, linelen, p->previous()==0);
1440                 lines += lyx::count(tmp.begin(), tmp.end(), '\n');
1441                 os << tmp;
1442                 p = p->next();
1443         }
1444         return lines;
1445 }
1446
1447
1448 int InsetText::docbook(Buffer const * buf, ostream & os) const
1449 {
1450         Paragraph * p = par;
1451         unsigned int lines = 0;
1452
1453         vector<string> environment_stack(10);
1454         vector<string> environment_inner(10);
1455
1456         int const command_depth = 0;
1457         string item_name;
1458
1459         Paragraph::depth_type depth = 0; // paragraph depth
1460
1461         while (p) {
1462                 string sgmlparam;
1463                 int desc_on = 0; // description mode
1464
1465                 LyXLayout const & style =
1466                         textclasslist.Style(buf->params.textclass,
1467                                             p->layout);
1468
1469                 // environment tag closing
1470                 for (; depth > p->params().depth(); --depth) {
1471                         if (environment_inner[depth] != "!-- --") {
1472                                 item_name = "listitem";
1473                                 buf->sgmlCloseTag(os, command_depth + depth,
1474                                              item_name);
1475                                 if (environment_inner[depth] == "varlistentry")
1476                                         buf->sgmlCloseTag(os, depth+command_depth,
1477                                                      environment_inner[depth]);
1478                         }
1479                         buf->sgmlCloseTag(os, depth + command_depth,
1480                                      environment_stack[depth]);
1481                         environment_stack[depth].erase();
1482                         environment_inner[depth].erase();
1483                 }
1484
1485                 if (depth == p->params().depth()
1486                    && environment_stack[depth] != style.latexname()
1487                    && !environment_stack[depth].empty()) {
1488                         if (environment_inner[depth] != "!-- --") {
1489                                 item_name= "listitem";
1490                                 buf->sgmlCloseTag(os, command_depth+depth,
1491                                                   item_name);
1492                                 if (environment_inner[depth] == "varlistentry")
1493                                         buf->sgmlCloseTag(os,
1494                                                           depth + command_depth,
1495                                                           environment_inner[depth]);
1496                         }
1497
1498                         buf->sgmlCloseTag(os, depth + command_depth,
1499                                           environment_stack[depth]);
1500
1501                         environment_stack[depth].erase();
1502                         environment_inner[depth].erase();
1503                 }
1504
1505                 // Write opening SGML tags.
1506                 switch (style.latextype) {
1507                 case LATEX_PARAGRAPH:
1508                         buf->sgmlOpenTag(os, depth + command_depth,
1509                                          style.latexname());
1510                         break;
1511
1512                 case LATEX_COMMAND:
1513                         buf->sgmlError(p, 0,
1514                                        _("Error : LatexType Command not allowed here.\n"));
1515                         return -1;
1516                         break;
1517
1518                 case LATEX_ENVIRONMENT:
1519                 case LATEX_ITEM_ENVIRONMENT:
1520                         if (depth < p->params().depth()) {
1521                                 depth = p->params().depth();
1522                                 environment_stack[depth].erase();
1523                         }
1524
1525                         if (environment_stack[depth] != style.latexname()) {
1526                                 if(environment_stack.size() == depth + 1) {
1527                                         environment_stack.push_back("!-- --");
1528                                         environment_inner.push_back("!-- --");
1529                                 }
1530                                 environment_stack[depth] = style.latexname();
1531                                 environment_inner[depth] = "!-- --";
1532                                 buf->sgmlOpenTag(os, depth + command_depth,
1533                                                  environment_stack[depth]);
1534                         } else {
1535                                 if (environment_inner[depth] != "!-- --") {
1536                                         item_name= "listitem";
1537                                         buf->sgmlCloseTag(os,
1538                                                           command_depth + depth,
1539                                                           item_name);
1540                                         if (environment_inner[depth] == "varlistentry")
1541                                                 buf->sgmlCloseTag(os,
1542                                                                   depth + command_depth,
1543                                                                   environment_inner[depth]);
1544                                 }
1545                         }
1546
1547                         if (style.latextype == LATEX_ENVIRONMENT) {
1548                                 if (!style.latexparam().empty()) {
1549                                         if(style.latexparam() == "CDATA")
1550                                                 os << "<![CDATA[";
1551                                         else
1552                                                 buf->sgmlOpenTag(os, depth + command_depth,
1553                                                                  style.latexparam());
1554                                 }
1555                                 break;
1556                         }
1557
1558                         desc_on = (style.labeltype == LABEL_MANUAL);
1559
1560                         if (desc_on)
1561                                 environment_inner[depth]= "varlistentry";
1562                         else
1563                                 environment_inner[depth]= "listitem";
1564
1565                         buf->sgmlOpenTag(os, depth + 1 + command_depth,
1566                                          environment_inner[depth]);
1567
1568                         if (desc_on) {
1569                                 item_name= "term";
1570                                 buf->sgmlOpenTag(os, depth + 1 + command_depth,
1571                                                  item_name);
1572                         } else {
1573                                 item_name= "para";
1574                                 buf->sgmlOpenTag(os, depth + 1 + command_depth,
1575                                                  item_name);
1576                         }
1577                         break;
1578                 default:
1579                         buf->sgmlOpenTag(os, depth + command_depth,
1580                                          style.latexname());
1581                         break;
1582                 }
1583
1584                 buf->simpleDocBookOnePar(os, p, desc_on,
1585                                          depth + 1 + command_depth);
1586                 p = p->next();
1587
1588                 string end_tag;
1589                 // write closing SGML tags
1590                 switch (style.latextype) {
1591                 case LATEX_ENVIRONMENT:
1592                         if (!style.latexparam().empty()) {
1593                                 if(style.latexparam() == "CDATA")
1594                                         os << "]]>";
1595                                 else
1596                                         buf->sgmlCloseTag(os, depth + command_depth,
1597                                                           style.latexparam());
1598                         }
1599                         break;
1600                 case LATEX_ITEM_ENVIRONMENT:
1601                         if (desc_on == 1) break;
1602                         end_tag= "para";
1603                         buf->sgmlCloseTag(os, depth + 1 + command_depth, end_tag);
1604                         break;
1605                 case LATEX_PARAGRAPH:
1606                         buf->sgmlCloseTag(os, depth + command_depth, style.latexname());
1607                         break;
1608                 default:
1609                         buf->sgmlCloseTag(os, depth + command_depth, style.latexname());
1610                         break;
1611                 }
1612         }
1613
1614         // Close open tags
1615         for (int d = depth; d >= 0; --d) {
1616                 if (!environment_stack[depth].empty()) {
1617                         if (environment_inner[depth] != "!-- --") {
1618                                 item_name = "listitem";
1619                                 buf->sgmlCloseTag(os, command_depth + depth,
1620                                                   item_name);
1621                                if (environment_inner[depth] == "varlistentry")
1622                                        buf->sgmlCloseTag(os, depth + command_depth,
1623                                                          environment_inner[depth]);
1624                         }
1625
1626                         buf->sgmlCloseTag(os, depth + command_depth,
1627                                           environment_stack[depth]);
1628                 }
1629         }
1630
1631         return lines;
1632 }
1633
1634
1635 void InsetText::validate(LaTeXFeatures & features) const
1636 {
1637         Paragraph * p = par;
1638         while (p) {
1639                 p->validate(features);
1640                 p = p->next();
1641         }
1642 }
1643
1644
1645 int InsetText::beginningOfMainBody(Buffer const * buf, Paragraph * p) const
1646 {
1647         if (textclasslist.Style(buf->params.textclass,
1648                                 p->getLayout()).labeltype != LABEL_MANUAL)
1649                 return 0;
1650         else
1651                 return p->beginningOfMainBody();
1652 }
1653
1654
1655 void InsetText::getCursorPos(BufferView * bv,
1656                              int & x, int & y) const
1657 {
1658         if (the_locking_inset) {
1659                 the_locking_inset->getCursorPos(bv, x, y);
1660                 return;
1661         }
1662         x = cx(bv);
1663         y = cy(bv);
1664 }
1665
1666
1667 unsigned int InsetText::insetInInsetY()
1668 {
1669         if (!the_locking_inset)
1670                 return 0;
1671
1672         return (inset_y + the_locking_inset->insetInInsetY());
1673 }
1674
1675
1676 void InsetText::toggleInsetCursor(BufferView * bv)
1677 {
1678         if (the_locking_inset) {
1679                 the_locking_inset->toggleInsetCursor(bv);
1680                 return;
1681         }
1682
1683         LyXFont const font(getLyXText(bv)->getFont(bv->buffer(), cpar(bv), cpos(bv)));
1684
1685         int const asc = lyxfont::maxAscent(font);
1686         int const desc = lyxfont::maxDescent(font);
1687
1688         if (isCursorVisible())
1689                 bv->hideLockedInsetCursor();
1690         else
1691                 bv->showLockedInsetCursor(cx(bv), cy(bv), asc, desc);
1692         toggleCursorVisible();
1693 }
1694
1695
1696 void InsetText::showInsetCursor(BufferView * bv, bool show)
1697 {
1698         if (the_locking_inset) {
1699                 the_locking_inset->showInsetCursor(bv, show);
1700                 return;
1701         }
1702         if (!isCursorVisible()) {
1703                 LyXFont const font =
1704                         getLyXText(bv)->getFont(bv->buffer(), cpar(bv), cpos(bv));
1705
1706                 int const asc = lyxfont::maxAscent(font);
1707                 int const desc = lyxfont::maxDescent(font);
1708
1709                 bv->fitLockedInsetCursor(cx(bv), cy(bv), asc, desc);
1710                 if (show)
1711                         bv->showLockedInsetCursor(cx(bv), cy(bv), asc, desc);
1712                 setCursorVisible(true);
1713         }
1714 }
1715
1716
1717 void InsetText::hideInsetCursor(BufferView * bv)
1718 {
1719         if (isCursorVisible()) {
1720                 bv->hideLockedInsetCursor();
1721                 setCursorVisible(false);
1722         }
1723         if (the_locking_inset)
1724                 the_locking_inset->hideInsetCursor(bv);
1725 }
1726
1727
1728 void InsetText::fitInsetCursor(BufferView * bv) const
1729 {
1730         if (the_locking_inset) {
1731                 the_locking_inset->fitInsetCursor(bv);
1732                 return;
1733         }
1734         LyXFont const font =
1735                 getLyXText(bv)->getFont(bv->buffer(), cpar(bv), cpos(bv));
1736
1737         int const asc = lyxfont::maxAscent(font);
1738         int const desc = lyxfont::maxDescent(font);
1739
1740         bv->fitLockedInsetCursor(cx(bv), cy(bv), asc, desc);
1741 }
1742
1743
1744 UpdatableInset::RESULT
1745 InsetText::moveRight(BufferView * bv, bool activate_inset, bool selecting)
1746 {
1747         if (getLyXText(bv)->cursor.par()->isRightToLeftPar(bv->buffer()->params))
1748                 return moveLeftIntern(bv, false, activate_inset, selecting);
1749         else
1750                 return moveRightIntern(bv, false, activate_inset, selecting);
1751 }
1752
1753
1754 UpdatableInset::RESULT
1755 InsetText::moveLeft(BufferView * bv, bool activate_inset, bool selecting)
1756 {
1757         if (getLyXText(bv)->cursor.par()->isRightToLeftPar(bv->buffer()->params))
1758                 return moveRightIntern(bv, true, activate_inset, selecting);
1759         else
1760                 return moveLeftIntern(bv, true, activate_inset, selecting);
1761 }
1762
1763
1764 UpdatableInset::RESULT
1765 InsetText::moveRightIntern(BufferView * bv, bool behind,
1766                            bool activate_inset, bool selecting)
1767 {
1768         if (!cpar(bv)->next() && (cpos(bv) >= cpar(bv)->size()))
1769                 return FINISHED_RIGHT;
1770         if (activate_inset && checkAndActivateInset(bv, behind))
1771                 return DISPATCHED;
1772         getLyXText(bv)->cursorRight(bv);
1773         if (!selecting)
1774                 getLyXText(bv)->selection.cursor = getLyXText(bv)->cursor;
1775         return DISPATCHED_NOUPDATE;
1776 }
1777
1778
1779 UpdatableInset::RESULT
1780 InsetText::moveLeftIntern(BufferView * bv, bool behind,
1781                           bool activate_inset, bool selecting)
1782 {
1783         if (!cpar(bv)->previous() && (cpos(bv) <= 0))
1784                 return FINISHED;
1785         getLyXText(bv)->cursorLeft(bv);
1786         if (!selecting)
1787                 getLyXText(bv)->selection.cursor = getLyXText(bv)->cursor;
1788         if (activate_inset && checkAndActivateInset(bv, behind))
1789                 return DISPATCHED;
1790         return DISPATCHED_NOUPDATE;
1791 }
1792
1793
1794 UpdatableInset::RESULT
1795 InsetText::moveUp(BufferView * bv)
1796 {
1797         if (!crow(bv)->previous())
1798                 return FINISHED_UP;
1799         getLyXText(bv)->cursorUp(bv);
1800         return DISPATCHED_NOUPDATE;
1801 }
1802
1803
1804 UpdatableInset::RESULT
1805 InsetText::moveDown(BufferView * bv)
1806 {
1807         if (!crow(bv)->next())
1808                 return FINISHED_DOWN;
1809         getLyXText(bv)->cursorDown(bv);
1810         return DISPATCHED_NOUPDATE;
1811 }
1812
1813
1814 bool InsetText::insertInset(BufferView * bv, Inset * inset)
1815 {
1816         if (the_locking_inset) {
1817                 if (the_locking_inset->insetAllowed(inset))
1818                         return the_locking_inset->insertInset(bv, inset);
1819                 return false;
1820         }
1821         bool clear = false;
1822         if (!lt) {
1823                 lt = getLyXText(bv);
1824                 clear = true;
1825         }
1826         setUndo(bv, Undo::FINISH, lt->cursor.par(), lt->cursor.par()->next());
1827         freezeUndo();
1828         inset->setOwner(this);
1829         hideInsetCursor(bv);
1830         lt->insertInset(bv, inset);
1831         bv->fitCursor();
1832         if (clear)
1833                 lt = 0;
1834         updateLocal(bv, CURSOR_PAR|CURSOR, true);
1835         unFreezeUndo();
1836         return true;
1837 }
1838
1839
1840 bool InsetText::insetAllowed(Inset::Code code) const
1841 {
1842         // in_insetAllowed is a really gross hack,
1843         // to allow us to call the owner's insetAllowed
1844         // without stack overflow, which can happen
1845         // when the owner uses InsetCollapsable::insetAllowed()
1846         bool ret = true;
1847         if (in_insetAllowed)
1848                 return ret;
1849         in_insetAllowed = true;
1850         if (the_locking_inset)
1851                 ret = the_locking_inset->insetAllowed(code);
1852         else if (owner())
1853                 ret = owner()->insetAllowed(code);
1854         in_insetAllowed = false;
1855         return ret;
1856 }
1857
1858
1859 UpdatableInset * InsetText::getLockingInset() const
1860 {
1861         return the_locking_inset ? the_locking_inset->getLockingInset() :
1862                 const_cast<InsetText *>(this);
1863 }
1864
1865
1866 UpdatableInset * InsetText::getFirstLockingInsetOfType(Inset::Code c)
1867 {
1868         if (c == lyxCode())
1869                 return this;
1870         if (the_locking_inset)
1871                 return the_locking_inset->getFirstLockingInsetOfType(c);
1872         return 0;
1873 }
1874
1875
1876 bool InsetText::showInsetDialog(BufferView * bv) const
1877 {
1878         if (the_locking_inset)
1879                 return the_locking_inset->showInsetDialog(bv);
1880         return false;
1881 }
1882
1883
1884 std::vector<string> const InsetText::getLabelList() const
1885 {
1886         std::vector<string> label_list;
1887
1888         Paragraph * tpar = par;
1889         while (tpar) {
1890                 Paragraph::inset_iterator beg = tpar->inset_iterator_begin();
1891                 Paragraph::inset_iterator end = tpar->inset_iterator_end();
1892                 for (; beg != end; ++beg) {
1893                         std::vector<string> const l = (*beg)->getLabelList();
1894                         label_list.insert(label_list.end(), l.begin(), l.end());
1895                 }
1896                 tpar = tpar->next();
1897         }
1898         return label_list;
1899 }
1900
1901
1902 void InsetText::setFont(BufferView * bv, LyXFont const & font, bool toggleall,
1903                         bool selectall)
1904 {
1905         if (the_locking_inset) {
1906                 the_locking_inset->setFont(bv, font, toggleall, selectall);
1907                 return;
1908         }
1909         if ((!par->next() && !par->size()) || !cpar(bv)->size()) {
1910                 getLyXText(bv)->setFont(bv, font, toggleall);
1911                 return;
1912         }
1913         bool clear = false;
1914         if (!lt) {
1915                 lt = getLyXText(bv);
1916                 clear = true;
1917         }
1918         if (lt->selection.set()) {
1919                 setUndo(bv, Undo::EDIT, lt->cursor.par(), lt->cursor.par()->next());
1920         }
1921         if (selectall)
1922                 selectAll(bv);
1923         lt->toggleFree(bv, font, toggleall);
1924         if (selectall)
1925                 lt->clearSelection();
1926         bv->fitCursor();
1927         bool flag = (selectall || lt->selection.set());
1928         if (clear)
1929                 lt = 0;
1930         if (flag)
1931                 updateLocal(bv, FULL, true);
1932         else
1933                 updateLocal(bv, CURSOR_PAR, true);
1934 }
1935
1936
1937 bool InsetText::checkAndActivateInset(BufferView * bv, bool behind)
1938 {
1939         if (cpar(bv)->isInset(cpos(bv))) {
1940                 unsigned int x;
1941                 unsigned int y;
1942                 Inset * inset =
1943                         static_cast<UpdatableInset*>(cpar(bv)->getInset(cpos(bv)));
1944                 if (!isHighlyEditableInset(inset))
1945                         return false;
1946                 LyXFont const font =
1947                         getLyXText(bv)->getFont(bv->buffer(), cpar(bv), cpos(bv));
1948                 if (behind) {
1949                         x = inset->width(bv, font);
1950                         y = font.isRightToLeft() ? 0 : inset->descent(bv, font);
1951                 } else {
1952                         x = 0;
1953                         y = font.isRightToLeft() ? inset->descent(bv, font) : 0;
1954                 }
1955                 //inset_x = cx(bv) - top_x + drawTextXOffset;
1956                 //inset_y = cy(bv) + drawTextYOffset;
1957                 inset->edit(bv, x, y, 0);
1958                 if (!the_locking_inset)
1959                         return false;
1960                 updateLocal(bv, CURSOR, false);
1961                 return true;
1962         }
1963         return false;
1964 }
1965
1966
1967 bool InsetText::checkAndActivateInset(BufferView * bv, int x, int y,
1968                                       int button)
1969 {
1970         x -= drawTextXOffset;
1971         int dummyx = x;
1972         int dummyy = y + insetAscent;
1973         Inset * inset = bv->checkInsetHit(getLyXText(bv), dummyx, dummyy);
1974
1975         if (inset) {
1976                 if (x < 0)
1977                         x = insetWidth;
1978                 if (y < 0)
1979                         y = insetDescent;
1980                 inset_x = cx(bv) - top_x + drawTextXOffset;
1981                 inset_y = cy(bv) + drawTextYOffset;
1982                 inset->edit(bv, x - inset_x, y - inset_y, button);
1983                 if (!the_locking_inset)
1984                         return false;
1985                 updateLocal(bv, CURSOR, false);
1986                 return true;
1987         }
1988         return false;
1989 }
1990
1991
1992 int InsetText::getMaxWidth(BufferView * bv, UpdatableInset const * inset) const
1993 {
1994 #if 0
1995         int w = UpdatableInset::getMaxWidth(bv, inset);
1996         if (w < 0) {
1997                 return -1;
1998         }
1999         if (owner()) {
2000                 w = w - top_x + owner()->x();
2001                 return w;
2002         }
2003         w -= (2 * TEXT_TO_INSET_OFFSET);
2004         return w - top_x;
2005 #else
2006         return UpdatableInset::getMaxWidth(bv, inset);
2007 #endif
2008 }
2009
2010
2011 void InsetText::setParagraphData(Paragraph * p, bool same_id)
2012 {
2013         // we have to unlock any locked inset otherwise we're in troubles
2014         the_locking_inset = 0;
2015         while (par) {
2016                 Paragraph * tmp = par->next();
2017                 delete par;
2018                 par = tmp;
2019         }
2020
2021         par = new Paragraph(*p, same_id);
2022         par->setInsetOwner(this);
2023         Paragraph * np = par;
2024         while (p->next()) {
2025                 p = p->next();
2026                 np->next(new Paragraph(*p, same_id));
2027                 np->next()->previous(np);
2028                 np = np->next();
2029                 np->setInsetOwner(this);
2030         }
2031         reinitLyXText();
2032         need_update = INIT;
2033 }
2034
2035
2036 void InsetText::setText(string const & data)
2037 {
2038         clear();
2039         LyXFont font(LyXFont::ALL_SANE);
2040         for (unsigned int i=0; i < data.length(); ++i)
2041                 par->insertChar(i, data[i], font);
2042 }
2043
2044
2045 void InsetText::setAutoBreakRows(bool flag)
2046 {
2047         if (flag != autoBreakRows) {
2048                 autoBreakRows = flag;
2049                 if (!flag)
2050                         removeNewlines();
2051                 need_update = INIT;
2052         }
2053 }
2054
2055
2056 void InsetText::setDrawFrame(BufferView * bv, DrawFrame how)
2057 {
2058         if (how != drawFrame_) {
2059                 drawFrame_ = how;
2060                 if (bv)
2061                         updateLocal(bv, DRAW_FRAME, false);
2062         }
2063 }
2064
2065
2066 void InsetText::setFrameColor(BufferView * bv, LColor::color col)
2067 {
2068         if (frame_color != col) {
2069                 frame_color = col;
2070                 if (bv)
2071                         updateLocal(bv, DRAW_FRAME, false);
2072         }
2073 }
2074
2075
2076 int InsetText::cx(BufferView * bv) const
2077 {
2078         // we do nothing dangerous so we use a local cache
2079         LyXText * llt = getLyXText(bv);
2080         int x = llt->cursor.x() + top_x + TEXT_TO_INSET_OFFSET;
2081         if (the_locking_inset) {
2082                 LyXFont font = llt->getFont(bv->buffer(), llt->cursor.par(),
2083                                             llt->cursor.pos());
2084                 if (font.isVisibleRightToLeft())
2085                         x -= the_locking_inset->width(bv, font);
2086         }
2087         return x;
2088 }
2089
2090
2091 int InsetText::cy(BufferView * bv) const
2092 {
2093         LyXFont font;
2094         return getLyXText(bv)->cursor.y() - ascent(bv, font) + TEXT_TO_INSET_OFFSET;
2095 }
2096
2097
2098 pos_type InsetText::cpos(BufferView * bv) const
2099 {
2100         return getLyXText(bv)->cursor.pos();
2101 }
2102
2103
2104 Paragraph * InsetText::cpar(BufferView * bv) const
2105 {
2106         return getLyXText(bv)->cursor.par();
2107 }
2108
2109
2110 bool InsetText::cboundary(BufferView * bv) const
2111 {
2112         return getLyXText(bv)->cursor.boundary();
2113 }
2114
2115
2116 Row * InsetText::crow(BufferView * bv) const
2117 {
2118         return getLyXText(bv)->cursor.row();
2119 }
2120
2121
2122 LyXText * InsetText::getLyXText(BufferView const * lbv,
2123                                 bool const recursive) const
2124 {
2125         if (!recursive && (cached_bview == lbv)) {
2126                 LyXText * lt = cached_text.get();
2127                 lyx::Assert(lt && lt->firstRow()->par() == par);
2128                 return cached_text.get();
2129         }
2130
2131         // Super UGLY! (Lgb)
2132         BufferView * bv = const_cast<BufferView *>(lbv);
2133
2134         cached_bview = bv;
2135         Cache::iterator it = cache.find(bv);
2136
2137         if (it != cache.end()) {
2138                 if (do_reinit) {
2139                         reinitLyXText();
2140                 } else if (do_resize) {
2141                         resizeLyXText(do_resize);
2142                 } else {
2143                         if (lt || !it->second.remove) {
2144                                 lyx::Assert(it->second.text.get());
2145                                 cached_text = it->second.text;
2146                                 if (recursive && the_locking_inset) {
2147                                         return the_locking_inset->getLyXText(bv, true);
2148                                 }
2149                                 return cached_text.get();
2150                         } else if (it->second.remove) {
2151                                 if (locked) {
2152                                         saveLyXTextState(it->second.text.get());
2153                                 } else {
2154                                         sstate.lpar = 0;
2155                                 }
2156                         }
2157                         //
2158                         // when we have to reinit the existing LyXText!
2159                         //
2160                         it->second.text->init(bv);
2161                         restoreLyXTextState(bv, it->second.text.get());
2162                         it->second.remove = false;
2163                 }
2164                 cached_text = it->second.text;
2165                 if (the_locking_inset && recursive) {
2166                         return the_locking_inset->getLyXText(bv);
2167                 }
2168                 return cached_text.get();
2169         }
2170         ///
2171         // we are here only if we don't have a BufferView * in the cache!!!
2172         ///
2173         cached_text.reset(new LyXText(const_cast<InsetText *>(this)));
2174         cached_text->init(bv);
2175         restoreLyXTextState(bv, cached_text.get());
2176
2177         cache.insert(make_pair(bv, cached_text));
2178
2179         if (the_locking_inset && recursive) {
2180                 return the_locking_inset->getLyXText(bv);
2181         }
2182         return cached_text.get();
2183 }
2184
2185
2186 void InsetText::deleteLyXText(BufferView * bv, bool recursive) const
2187 {
2188         cached_bview = 0;
2189
2190         Cache::iterator it = cache.find(bv);
2191
2192         if (it == cache.end()) {
2193                 return;
2194         }
2195
2196         lyx::Assert(it->second.text.get());
2197
2198         it->second.remove = true;
2199         if (recursive) {
2200                 /// then remove all LyXText in text-insets
2201                 Paragraph * p = par;
2202                 for (; p; p = p->next()) {
2203                         p->deleteInsetsLyXText(bv);
2204                 }
2205         }
2206 }
2207
2208
2209 void InsetText::resizeLyXText(BufferView * bv, bool force) const
2210 {
2211         if (lt) {
2212                 // we cannot resize this because we are in use!
2213                 // so do this on the next possible getLyXText()
2214                 do_resize = bv;
2215                 return;
2216         }
2217         do_resize = 0;
2218 //      lyxerr << "InsetText::resizeLyXText\n";
2219         if (!par->next() && !par->size()) { // no data, resize not neccessary!
2220                 // we have to do this as a fixed width may have changed!
2221                 LyXText * t = getLyXText(bv);
2222                 saveLyXTextState(t);
2223                 t->init(bv, true);
2224                 restoreLyXTextState(bv, t);
2225                 return;
2226         }
2227         // one endless line, resize normally not necessary
2228         if (!force && getMaxWidth(bv, this) < 0)
2229                 return;
2230
2231         Cache::iterator it = cache.find(bv);
2232         if (it == cache.end()) {
2233                 return;
2234         }
2235         lyx::Assert(it->second.text.get());
2236
2237         LyXText * t = it->second.text.get();
2238         saveLyXTextState(t);
2239         for (Paragraph * p = par; p; p = p->next()) {
2240                 p->resizeInsetsLyXText(bv);
2241         }
2242         t->init(bv, true);
2243         restoreLyXTextState(bv, t);
2244         if (the_locking_inset) {
2245                 inset_x = cx(bv) - top_x + drawTextXOffset;
2246                 inset_y = cy(bv) + drawTextYOffset;
2247         }
2248
2249         if (bv->screen()) {
2250                 t->first = bv->screen()->topCursorVisible(t);
2251         }
2252         if (!owner()) {
2253                 updateLocal(bv, FULL, false);
2254                 // this will scroll the screen such that the cursor becomes visible
2255                 bv->updateScrollbar();
2256         } else {
2257                 need_update |= FULL;
2258         }
2259 }
2260
2261
2262 void InsetText::reinitLyXText() const
2263 {
2264         if (lt) {
2265                 // we cannot resize this because we are in use!
2266                 // so do this on the next possible getLyXText()
2267                 do_reinit = true;
2268                 return;
2269         }
2270         do_reinit = false;
2271         do_resize = 0;
2272 //      lyxerr << "InsetText::reinitLyXText\n";
2273         for(Cache::iterator it = cache.begin(); it != cache.end(); ++it) {
2274                 lyx::Assert(it->second.text.get());
2275
2276                 LyXText * t = it->second.text.get();
2277                 BufferView * bv = it->first;
2278
2279                 saveLyXTextState(t);
2280                 for (Paragraph * p = par; p; p = p->next()) {
2281                         p->resizeInsetsLyXText(bv);
2282                 }
2283                 t->init(bv, true);
2284                 restoreLyXTextState(bv, t);
2285                 if (the_locking_inset) {
2286                         inset_x = cx(bv) - top_x + drawTextXOffset;
2287                         inset_y = cy(bv) + drawTextYOffset;
2288                 }
2289                 if (bv->screen()) {
2290                         t->first = bv->screen()->topCursorVisible(t);
2291                 }
2292                 if (!owner()) {
2293                         updateLocal(bv, FULL, false);
2294                         // this will scroll the screen such that the cursor becomes visible
2295                         bv->updateScrollbar();
2296                 } else {
2297                         need_update = FULL;
2298                 }
2299         }
2300 }
2301
2302
2303 void InsetText::removeNewlines()
2304 {
2305         bool changed = false;
2306
2307         for (Paragraph * p = par; p; p = p->next()) {
2308                 for (int i = 0; i < p->size(); ++i) {
2309                         if (p->getChar(i) == Paragraph::META_NEWLINE) {
2310                                 changed = true;
2311                                 p->erase(i);
2312                         }
2313                 }
2314         }
2315         if (changed)
2316                 reinitLyXText();
2317 }
2318
2319
2320 bool InsetText::nodraw() const
2321 {
2322         if (the_locking_inset)
2323                 return the_locking_inset->nodraw();
2324         return UpdatableInset::nodraw();
2325 }
2326
2327
2328 int InsetText::scroll(bool recursive) const
2329 {
2330         int sx = UpdatableInset::scroll(false);
2331
2332         if (recursive && the_locking_inset)
2333                 sx += the_locking_inset->scroll(recursive);
2334
2335         return sx;
2336 }
2337
2338
2339 bool InsetText::doClearArea() const
2340 {
2341         return !locked || (need_update & (FULL|INIT));
2342 }
2343
2344
2345 void InsetText::selectAll(BufferView * bv)
2346 {
2347         getLyXText(bv)->cursorTop(bv);
2348         getLyXText(bv)->selection.cursor = getLyXText(bv)->cursor;
2349         getLyXText(bv)->cursorBottom(bv);
2350         getLyXText(bv)->setSelection(bv);
2351 }
2352
2353
2354 void InsetText::clearSelection(BufferView * bv)
2355 {
2356         getLyXText(bv)->clearSelection();
2357 }
2358
2359
2360 void InsetText::clearInset(BufferView * bv, int baseline, bool & cleared) const
2361 {
2362         Painter & pain = bv->painter();
2363         int w = insetWidth;
2364         int h = insetAscent + insetDescent;
2365         int ty = baseline - insetAscent;
2366
2367         if (ty < 0) {
2368                 h += ty;
2369                 ty = 0;
2370         }
2371         if ((ty + h) > pain.paperHeight())
2372                 h = pain.paperHeight();
2373         if ((top_x + drawTextXOffset + w) > pain.paperWidth())
2374                 w = pain.paperWidth();
2375 //      w -= TEXT_TO_INSET_OFFSET;
2376         pain.fillRectangle(top_x, ty, w+1, h+1, backgroundColor());
2377         cleared = true;
2378         need_update = FULL;
2379         frame_is_visible = false;
2380 }
2381
2382
2383 Paragraph * InsetText::getParFromID(int id) const
2384 {
2385 #if 0
2386         Paragraph * result = par;
2387         Paragraph * ires = 0;
2388         while (result && result->id() != id) {
2389                 if ((ires = result->getParFromID(id)))
2390                         return ires;
2391                 result = result->next();
2392         }
2393         return result;
2394 #else
2395         Paragraph * tmp = par;
2396         while (tmp) {
2397                 if (tmp->id() == id) {
2398                         return tmp;
2399                 }
2400                 Paragraph * tmp2 = tmp->getParFromID(id);
2401                 if (tmp2 != 0) {
2402                         return tmp2;
2403                 }
2404                 tmp = tmp->next();
2405         }
2406         return 0;
2407 #endif
2408 }
2409
2410
2411 Paragraph * InsetText::firstParagraph() const
2412 {
2413         Paragraph * result;
2414         if (the_locking_inset)
2415                 if ((result = the_locking_inset->firstParagraph()))
2416                         return result;
2417         return par;
2418 }
2419
2420
2421 Paragraph * InsetText::getFirstParagraph(int i) const
2422 {
2423         return (i == 0) ? par : 0;
2424 }
2425
2426
2427 LyXCursor const & InsetText::cursor(BufferView * bv) const
2428 {
2429                 if (the_locking_inset)
2430                                 return the_locking_inset->cursor(bv);
2431                 return getLyXText(bv)->cursor;
2432 }
2433
2434
2435 Paragraph * InsetText::paragraph() const
2436 {
2437         return par;
2438 }
2439
2440
2441 void InsetText::paragraph(Paragraph * p)
2442 {
2443         // GENERAL COMMENT: We don't have to free the old paragraphs as the
2444         // caller of this function has to take care of it. This IS important
2445         // as we could have to insert a paragraph before this one and just
2446         // link the actual to a new ones next and set it with this function
2447         // and are done!
2448         par = p;
2449         // set ourself as owner for all the paragraphs inserted!
2450         Paragraph * np = par;
2451         while (np) {
2452                 np->setInsetOwner(this);
2453                 np = np->next();
2454         }
2455         reinitLyXText();
2456         // redraw myself when asked for
2457         need_update = INIT;
2458 }
2459
2460
2461 Inset * InsetText::getInsetFromID(int id_arg) const
2462 {
2463         if (id_arg == id())
2464                 return const_cast<InsetText *>(this);
2465
2466         Paragraph * lp = par;
2467
2468         while (lp) {
2469                 for (Paragraph::inset_iterator it = lp->inset_iterator_begin(),
2470                          en = lp->inset_iterator_end();
2471                          it != en; ++it)
2472                 {
2473                         if ((*it)->id() == id_arg)
2474                                 return *it;
2475                         Inset * in = (*it)->getInsetFromID(id_arg);
2476                         if (in)
2477                                 return in;
2478                 }
2479                 lp = lp->next();
2480         }
2481         return 0;
2482 }
2483
2484
2485 string const InsetText::selectNextWordToSpellcheck(BufferView * bv, float & value) const
2486 {
2487         bool clear = false;
2488         string str;
2489
2490         if (!lt) {
2491                 lt = getLyXText(bv);
2492                 clear = true;
2493         }
2494         if (the_locking_inset) {
2495                 str = the_locking_inset->selectNextWordToSpellcheck(bv, value);
2496                 if (!str.empty()) {
2497                         value += cy(bv);
2498                         if (clear)
2499                                 lt = 0;
2500                         return str;
2501                 }
2502                 // we have to go on checking so move cusor to the next char
2503                 lt->cursor.pos(lt->cursor.pos() + 1);
2504         }
2505         str = lt->selectNextWordToSpellcheck(bv, value);
2506         if (str.empty())
2507                 bv->unlockInset(const_cast<InsetText *>(this));
2508         else
2509                 value = cy(bv);
2510         if (clear)
2511                 lt = 0;
2512         return str;
2513 }
2514
2515
2516 void InsetText::selectSelectedWord(BufferView * bv)
2517 {
2518         if (the_locking_inset) {
2519                 the_locking_inset->selectSelectedWord(bv);
2520                 return;
2521         }
2522         getLyXText(bv)->selectSelectedWord(bv);
2523         updateLocal(bv, SELECTION, false);
2524 }
2525
2526
2527 void InsetText::toggleSelection(BufferView * bv, bool kill_selection)
2528 {
2529         if (the_locking_inset) {
2530                 the_locking_inset->toggleSelection(bv, kill_selection);
2531         }
2532         bool clear = false;
2533         if (!lt) {
2534                 lt = getLyXText(bv);
2535                 clear = true;
2536         }
2537
2538         int x = top_x + TEXT_TO_INSET_OFFSET;
2539
2540         Row * row = lt->firstRow();
2541         int y_offset = top_baseline - row->ascent_of_text();
2542         int y = y_offset;
2543         while ((row != 0) && ((y+row->height()) <= 0)) {
2544                 y += row->height();
2545                 row = row->next();
2546         }
2547         if (y_offset < 0)
2548                 y_offset = y;
2549
2550         if (need_update & SELECTION)
2551                 need_update = NONE;
2552         bv->screen()->toggleSelection(lt, bv, kill_selection, y_offset, x);
2553         if (clear)
2554                 lt = 0;
2555 }
2556
2557
2558 bool InsetText::searchForward(BufferView * bv, string const & str,
2559                               bool cs, bool mw)
2560 {
2561         if (the_locking_inset) {
2562                 if (the_locking_inset->searchForward(bv, str, cs, mw))
2563                         return true;
2564                 bool clear = false;
2565                 if (!lt) {
2566                         lt = getLyXText(bv);
2567                         clear = true;
2568                 }
2569                 Paragraph * lpar = lt->cursor.par();
2570                 pos_type pos = lt->cursor.pos();
2571                 if (pos < lpar->size() - 1)
2572                         ++pos;
2573                 else {
2574                         pos = 0;
2575                         lpar = lpar->next();
2576                 }
2577                 if (!lpar) {
2578                         if (clear)
2579                                 lt = 0;
2580                         // we have to unlock ourself in this function by default!
2581                         bv->unlockInset(const_cast<InsetText *>(this));
2582                         return false;
2583                 }
2584                 lt->setCursor(bv, lpar, pos);
2585                 if (clear)
2586                         lt = 0;
2587         }
2588         if (LyXFind(bv, str, true, true, cs , mw)) {
2589                 return true;
2590         }
2591         // we have to unlock ourself in this function by default!
2592         bv->unlockInset(const_cast<InsetText *>(this));
2593         return false;
2594 }
2595
2596 bool InsetText::searchBackward(BufferView * bv, string const & str,
2597                                bool cs, bool mw)
2598 {
2599         if (the_locking_inset)
2600                 if (the_locking_inset->searchBackward(bv, str, cs, mw))
2601                         return true;
2602         if (LyXFind(bv, str, false, true, cs, mw)) {
2603                 return true;
2604         }
2605         // we have to unlock ourself in this function by default!
2606         bv->unlockInset(const_cast<InsetText *>(this));
2607         return false;
2608 }
2609
2610
2611 bool InsetText::checkInsertChar(LyXFont & font)
2612 {
2613         if (owner())
2614                 return owner()->checkInsertChar(font);
2615         return true;
2616 }
2617
2618
2619 void InsetText::collapseParagraphs(BufferParams const & bparams) const
2620 {
2621         while(par->next()) {
2622                 if (!par->isSeparator(par->size()-1))
2623                         par->insertChar(par->size()-1, ' ');
2624                 par->pasteParagraph(bparams);
2625         }
2626         reinitLyXText();
2627 }