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 #include <fstream>
  14 #include <algorithm>
  15
  16 #include <cstdlib>
  17 //#include <signal.h>
  18
  19 #ifdef __GNUG__
  20 #pragma implementation
  21 #endif
  22
  23 #include "insettext.h"
  24 #include "paragraph.h"
  25 #include "lyxlex.h"
  26 #include "debug.h"
  27 #include "lyxfont.h"
  28 #include "commandtags.h"
  29 #include "buffer.h"
  30 #include "LyXView.h"
  31 #include "BufferView.h"
  32 #include "layout.h"
  33 #include "LaTeXFeatures.h"
  34 #include "Painter.h"
  35 #include "lyx_gui_misc.h"
  36 #include "lyxtext.h"
  37 #include "lyxcursor.h"
  38 #include "CutAndPaste.h"
  39 #include "font.h"
  40 #include "LColor.h"
  41 #include "support/textutils.h"
  42 #include "support/LAssert.h"
  43 #include "lyxrow.h"
  44 #include "lyxrc.h"
  45 #include "intl.h"
  46 #include "trans_mgr.h"
  47 #include "lyxscreen.h"
  48 #include "WorkArea.h"
  49 #include "gettext.h"
  50 #include "lyxfunc.h"
  51 #include "ParagraphParameters.h"
  52 #include "undo_funcs.h"
  53 #include "lyxfind.h"
  54
  55 using std::ostream;
  56 using std::ifstream;
  57 using std::endl;
  58 using std::min;
  59 using std::max;
  60 using std::make_pair;
  61
  62 extern unsigned char getCurrentTextClass(Buffer *);
  63 extern bool math_insert_greek(BufferView *, char);
  64 extern int greek_kb_flag;
  65
  66
  67 #warning this functions should probably go into bufferview_funcs somehow (Jug)
  68
  69 void InsetText::saveLyXTextState(LyXText * t) const
  70 {
  71         sstate.lpar = t->cursor.par();
  72         sstate.pos = t->cursor.pos();
  73         sstate.boundary = t->cursor.boundary();
  74         sstate.selstartpar = t->selection.start.par();
  75         sstate.selstartpos = t->selection.start.pos();
  76         sstate.selstartboundary = t->selection.start.boundary();
  77         sstate.selendpar = t->selection.end.par();
  78         sstate.selendpos = t->selection.end.pos();
  79         sstate.selendboundary = t->selection.end.boundary();
  80         sstate.selection = t->selection.set();
  81         sstate.mark_set = t->selection.mark();
  82 }
  83
  84 void InsetText::restoreLyXTextState(BufferView * bv, LyXText * t) const
  85 {
  86         if (sstate.lpar) {
  87                 t->selection.set(true);
  88                 /* at this point just to avoid the Delete-Empty-Paragraph
  89                  * Mechanism when setting the cursor */
  90                 t->selection.mark(sstate.mark_set);
  91                 if (sstate.selection) {
  92                         t->setCursor(bv, sstate.selstartpar, sstate.selstartpos,
  93                                      true, sstate.selstartboundary);
  94                         t->selection.cursor = t->cursor;
  95                         t->setCursor(bv, sstate.selendpar, sstate.selendpos,
  96                                      true, sstate.selendboundary);
  97                         t->setSelection(bv);
  98                         t->setCursor(bv, sstate.lpar, sstate.pos);
  99                 } else {
 100                         t->setCursor(bv, sstate.lpar, sstate.pos, true, sstate.boundary);
 101                         t->selection.cursor = t->cursor;
 102                         t->selection.set(false);
 103                 }
 104         }
 105 }
 106
 107
 108 InsetText::InnerCache::InnerCache(boost::shared_ptr<LyXText> t)
 109 {
 110         text = t;
 111         remove = false;
 112 }
 113
 114
 115 InsetText::InsetText()
 116 {
 117         par = new Paragraph;
 118         init();
 119 }
 120
 121
 122 InsetText::InsetText(InsetText const & ins, bool same_id)
 123         : UpdatableInset()
 124 {
 125         par = 0;
 126         init(&ins, same_id);
 127         autoBreakRows = ins.autoBreakRows;
 128 }
 129
 130
 131 InsetText & InsetText::operator=(InsetText const & it)
 132 {
 133         init(&it);
 134         autoBreakRows = it.autoBreakRows;
 135         return * this;
 136 }
 137
 138
 139 void InsetText::init(InsetText const * ins, bool same_id)
 140 {
 141         top_y = 0;
 142         last_width = 0;
 143         last_height = 0;
 144         insetAscent = 0;
 145         insetDescent = 0;
 146         insetWidth = 0;
 147         the_locking_inset = 0;
 148         old_max_width = 0;
 149         no_selection = false;
 150         need_update = INIT;
 151         drawTextXOffset = 0;
 152         drawTextYOffset = 0;
 153         autoBreakRows = false;
 154         drawFrame_ = NEVER;
 155         xpos = 0.0;
 156         if (ins) {
 157                 setParagraphData(ins->par);
 158                 autoBreakRows = ins->autoBreakRows;
 159                 drawFrame_ = ins->drawFrame_;
 160                 if (same_id)
 161                         id_ = ins->id_;
 162         }
 163         par->setInsetOwner(this);
 164         frame_color = LColor::insetframe;
 165         locked = false;
 166         old_par = 0;
 167         last_drawn_width = -1;
 168         frame_is_visible = false;
 169         cached_bview = 0;
 170         sstate.lpar = 0;
 171         lt = 0;
 172 }
 173
 174
 175 InsetText::~InsetText()
 176 {
 177         cached_bview = 0;
 178
 179         // NOTE
 180
 181         while (par) {
 182                 Paragraph * tmp = par->next();
 183                 delete par;
 184                 par = tmp;
 185         }
 186 }
 187
 188
 189 void InsetText::clear()
 190 {
 191         cached_bview = 0;
 192
 193         // now also delete all caches this should be safe, hopefully
 194         cache.clear();
 195
 196         while (par) {
 197                 Paragraph * tmp = par->next();
 198                 delete par;
 199                 par = tmp;
 200         }
 201         par = new Paragraph;
 202 }
 203
 204
 205 Inset * InsetText::clone(Buffer const &, bool same_id) const
 206 {
 207         InsetText * t = new InsetText(*this, same_id);
 208         return t;
 209 }
 210
 211
 212 void InsetText::write(Buffer const * buf, ostream & os) const
 213 {
 214         os << "Text\n";
 215         writeParagraphData(buf, os);
 216 }
 217
 218
 219 void InsetText::writeParagraphData(Buffer const * buf, ostream & os) const
 220 {
 221         par->writeFile(buf, os, buf->params, 0);
 222 }
 223
 224
 225 void InsetText::read(Buffer const * buf, LyXLex & lex)
 226 {
 227         string token;
 228         int pos = 0;
 229         Paragraph * return_par = 0;
 230         Paragraph::depth_type depth = 0;
 231         LyXFont font(LyXFont::ALL_INHERIT);
 232
 233         clear();
 234
 235         while (lex.IsOK()) {
 236                 lex.nextToken();
 237                 token = lex.GetString();
 238                 if (token.empty())
 239                         continue;
 240                 if (token == "\\end_inset")
 241                         break;
 242                 if (const_cast<Buffer*>(buf)->
 243                         parseSingleLyXformat2Token(lex, par, return_par,
 244                                                    token, pos, depth, font)) {
 245                         // the_end read this should NEVER happen
 246                         lex.printError("\\the_end read in inset! Error in document!");
 247                         return;
 248                 }
 249         }
 250         if (!return_par)
 251                 return_par = par;
 252         par = return_par;
 253         while(return_par) {
 254                 return_par->setInsetOwner(this);
 255                 return_par = return_par->next();
 256         }
 257
 258         if (token != "\\end_inset") {
 259                 lex.printError("Missing \\end_inset at this point. "
 260                                            "Read: `$$Token'");
 261         }
 262         need_update = INIT;
 263 }
 264
 265
 266 int InsetText::ascent(BufferView * bv, LyXFont const &) const
 267 {
 268         int y_temp = 0;
 269         Row * row = getLyXText(bv)->getRowNearY(y_temp);
 270         insetAscent = row->ascent_of_text() + TEXT_TO_INSET_OFFSET;
 271         return insetAscent;
 272 }
 273
 274
 275 int InsetText::descent(BufferView * bv, LyXFont const &) const
 276 {
 277         bool clear = false;
 278         if (!lt) {
 279                 lt = getLyXText(bv);
 280                 clear = true;
 281         }
 282         int y_temp = 0;
 283         Row * row = lt->getRowNearY(y_temp);
 284         insetDescent = lt->height - row->ascent_of_text() +
 285         TEXT_TO_INSET_OFFSET;
 286         if (clear)
 287                 lt = 0;
 288         return insetDescent;
 289 }
 290
 291
 292 int InsetText::width(BufferView * bv, LyXFont const &) const
 293 {
 294         insetWidth = max(textWidth(bv),
 295                          (int)getLyXText(bv)->width + (2 * TEXT_TO_INSET_OFFSET));
 296         return insetWidth;
 297 }
 298
 299
 300 int InsetText::textWidth(BufferView * bv) const
 301 {
 302         int const w = getMaxWidth(bv, this);
 303         return w;
 304 }
 305
 306
 307 void InsetText::draw(BufferView * bv, LyXFont const & f,
 308                      int baseline, float & x, bool cleared) const
 309 {
 310         if (nodraw())
 311                 return;
 312
 313         Painter & pain = bv->painter();
 314
 315         // no draw is necessary !!!
 316         if ((drawFrame_ == LOCKED) && !locked && !par->size()) {
 317                 top_x = int(x);
 318                 top_baseline = baseline;
 319                 x += width(bv, f);
 320                 if (!cleared && (need_update & CLEAR_FRAME))
 321                         clearFrame(pain, cleared);
 322                 else if (cleared)
 323                         frame_is_visible = false;
 324                 need_update = NONE;
 325                 return;
 326         }
 327
 328         xpos = x;
 329 #if 0
 330         UpdatableInset::draw(bv, f, baseline, x, cleared);
 331 #else
 332         if (!owner())
 333                 x += static_cast<float>(scroll());
 334 #endif
 335 #if 0
 336         // update insetWidth and insetHeight with dummy calls
 337         (void)ascent(bv, f);
 338         (void)descent(bv, f);
 339         (void)width(bv, f);
 340 #endif
 341
 342         // if top_x differs we have a rule down and we don't have to clear anything
 343         if (!cleared && (top_x == int(x)) &&
 344                 ((need_update&(INIT|FULL)) || (top_baseline!=baseline) ||
 345                  (last_drawn_width!=insetWidth))) {
 346                 clearInset(pain, baseline, cleared);
 347         }
 348         if (cleared)
 349                 frame_is_visible = false;
 350
 351         if (!cleared && (need_update == NONE))
 352                 return;
 353
 354         if (top_x != int(x)) {
 355                 if ((getMaxWidth(bv, this) > 0) &&
 356                         (getLyXText(bv)->width != old_max_width)) {
 357                         resizeLyXText(bv);
 358                         need_update |= FULL;
 359                         old_max_width = getLyXText(bv)->width;
 360                         bv->text->status(bv, LyXText::CHANGED_IN_DRAW);
 361                 }
 362                 top_x = int(x);
 363                 clearInset(pain, baseline, cleared);
 364         }
 365
 366 //      lyxerr << "InsetText::draw[" << this << "](" << need_update << ":" << int(x) << ":" << top_x << ")\n";
 367
 368         if (cleared || (last_drawn_width != insetWidth)) {
 369                 need_update |= FULL;
 370                 last_drawn_width = insetWidth;
 371         }
 372
 373         top_baseline = baseline;
 374         top_y = baseline - ascent(bv, f);
 375         last_width = width(bv, f);
 376         last_height = ascent(bv, f) + descent(bv, f);
 377
 378         if (the_locking_inset && (cpar(bv) == inset_par)
 379                 && (cpos(bv) == inset_pos)) {
 380                 inset_x = cx(bv) - top_x + drawTextXOffset;
 381                 inset_y = cy(bv) + drawTextYOffset;
 382         }
 383         if (!cleared && (need_update == CURSOR)
 384                 && !getLyXText(bv)->selection.set()) {
 385                 drawFrame(pain, cleared);
 386                 x += last_width; // was width(bv, f);
 387                 need_update = NONE;
 388                 return;
 389         }
 390         bool clear = false;
 391         if (!lt) {
 392                 lt = getLyXText(bv);
 393                 clear = true;
 394         }
 395         x += TEXT_TO_INSET_OFFSET;
 396
 397         int y = 0;
 398         Row * row = lt->getRowNearY(y);
 399         int y_offset = baseline - row->ascent_of_text();
 400         int ph = pain.paperHeight();
 401         int first = 0;
 402         y = y_offset;
 403         while ((row != 0) && ((y+row->height()) <= 0)) {
 404                 y += row->height();
 405                 first += row->height();
 406                 row = row->next();
 407         }
 408         if (y_offset < 0)
 409                 y_offset = y;
 410         lt->first = first;
 411         if (cleared) {
 412                 int yf = y_offset;
 413                 y = 0;
 414                 while ((row != 0) && (yf < ph)) {
 415                         lt->getVisibleRow(bv, y+y_offset, int(x), row,
 416                                                 y+first, cleared);
 417                         y += row->height();
 418                         yf += row->height();
 419                         row = row->next();
 420                 }
 421         } else if (!locked) {
 422                 if (need_update & CURSOR) {
 423                         bv->screen()->toggleSelection(lt, bv, true, y_offset,int(x));
 424                         lt->clearSelection(bv);
 425                         lt->selection.cursor = lt->cursor;
 426                 }
 427                 bv->screen()->update(lt, bv, y_offset, int(x));
 428         } else {
 429                 locked = false;
 430                 if (need_update & SELECTION)
 431                         bv->screen()->toggleToggle(lt, bv, y_offset, int(x));
 432                 else if (need_update & CURSOR) {
 433                         bv->screen()->toggleSelection(lt, bv, true, y_offset,int(x));
 434                         lt->clearSelection(bv);
 435                         lt->selection.cursor = lt->cursor;
 436                 }
 437                 bv->screen()->update(lt, bv, y_offset, int(x));
 438                 locked = true;
 439         }
 440
 441         lt->refresh_y = 0;
 442         lt->status(bv, LyXText::UNCHANGED);
 443         if ((need_update != CURSOR_PAR) &&
 444                 ((drawFrame_ == ALWAYS) || ((drawFrame_ == LOCKED) && locked)))
 445                 drawFrame(pain, cleared);
 446         else if (need_update & CLEAR_FRAME)
 447                 clearFrame(pain, cleared);
 448         x += last_width /* was width(bv, f) */ - TEXT_TO_INSET_OFFSET;
 449         if (bv->text->status() == LyXText::CHANGED_IN_DRAW) {
 450                 need_update |= INIT;
 451         } else if (need_update != INIT)
 452                 need_update = NONE;
 453         if (clear)
 454                 lt = 0;
 455 }
 456
 457
 458 void InsetText::drawFrame(Painter & pain, bool cleared) const
 459 {
 460         if (!frame_is_visible || cleared) {
 461                 pain.rectangle(top_x + 1, top_baseline - insetAscent + 1,
 462                                insetWidth - 1, insetAscent + insetDescent - 1,
 463                                frame_color);
 464                 frame_is_visible = true;
 465         }
 466 }
 467
 468
 469 void InsetText::clearFrame(Painter & pain, bool cleared) const
 470 {
 471         if (frame_is_visible) {
 472                 if (!cleared) {
 473                         pain.rectangle(top_x + 1, top_baseline - insetAscent + 1,
 474                                        insetWidth - 1, insetAscent + insetDescent - 1,
 475                                        backgroundColor());
 476                 }
 477                 frame_is_visible = false;
 478         }
 479 }
 480
 481
 482 void InsetText::update(BufferView * bv, LyXFont const & font, bool reinit)
 483 {
 484         if (reinit) {
 485                 need_update |= INIT;
 486                 resizeLyXText(bv);
 487                 if (owner())
 488                         owner()->update(bv, font, true);
 489                 return;
 490         }
 491         if (the_locking_inset) {
 492                 inset_x = cx(bv) - top_x + drawTextXOffset;
 493                 inset_y = cy(bv) + drawTextYOffset;
 494                 the_locking_inset->update(bv, font, reinit);
 495         }
 496
 497         bool clear = false;
 498         if (!lt) {
 499                 lt = getLyXText(bv);
 500                 clear = true;
 501         }
 502         int oldw = insetWidth;
 503         insetWidth = lt->width + (2 * TEXT_TO_INSET_OFFSET);
 504         if (oldw != insetWidth) {
 505                 resizeLyXText(bv);
 506                 need_update |= FULL;
 507                 if (clear)
 508                         lt = 0;
 509                 return;
 510         }
 511         if ((need_update & CURSOR_PAR) && (lt->status() == LyXText::UNCHANGED) &&
 512                 the_locking_inset)
 513         {
 514                 lt->updateInset(bv, the_locking_inset);
 515         }
 516         if (lt->status() == LyXText::NEED_MORE_REFRESH)
 517                 need_update |= FULL;
 518         if (clear)
 519                 lt = 0;
 520 }
 521
 522
 523 void InsetText::setUpdateStatus(BufferView * bv, int what) const
 524 {
 525         bool clear = false;
 526         if (!lt) {
 527                 lt = getLyXText(bv);
 528                 clear = true;
 529         }
 530         need_update |= what;
 531         if (lt->status() == LyXText::NEED_MORE_REFRESH)
 532                 need_update |= FULL;
 533         else if (lt->status() == LyXText::NEED_VERY_LITTLE_REFRESH)
 534                 need_update |= CURSOR_PAR;
 535
 536         // this to not draw a selection when we redraw all of it!
 537         if ((need_update & (INIT|FULL)) && (need_update & CURSOR))
 538                 lt->clearSelection(bv);
 539         if (clear)
 540                 lt = 0;
 541 }
 542
 543
 544 void InsetText::updateLocal(BufferView * bv, int what, bool mark_dirty) const
 545 {
 546         bool clear = false;
 547         if (!lt) {
 548                 lt = getLyXText(bv);
 549                 clear = true;
 550         }
 551         lt->fullRebreak(bv);
 552         setUpdateStatus(bv, what);
 553         if ((need_update != CURSOR) || (lt->status() != LyXText::UNCHANGED) ||
 554                 lt->selection.set())
 555         {
 556                 bv->updateInset(const_cast<InsetText *>(this), mark_dirty);
 557         }
 558         bv->owner()->showState();
 559         if (old_par != cpar(bv)) {
 560                 bv->owner()->setLayout(cpar(bv)->getLayout());
 561                 old_par = cpar(bv);
 562         }
 563         if (clear)
 564                 lt = 0;
 565 }
 566
 567
 568 string const InsetText::editMessage() const
 569 {
 570         return _("Opened Text Inset");
 571 }
 572
 573
 574 void InsetText::edit(BufferView * bv, int x, int y, unsigned int button)
 575 {
 576         UpdatableInset::edit(bv, x, y, button);
 577
 578         if (!bv->lockInset(this)) {
 579                 lyxerr[Debug::INSETS] << "Cannot lock inset" << endl;
 580                 return;
 581         }
 582         locked = true;
 583         the_locking_inset = 0;
 584         inset_pos = inset_x = inset_y = 0;
 585         inset_boundary = false;
 586         inset_par = 0;
 587         old_par = 0;
 588         int tmp_y = (y < 0) ? 0 : y;
 589         bool clear = false;
 590         if (!lt) {
 591                 lt = getLyXText(bv);
 592                 clear = true;
 593         }
 594
 595         if (!checkAndActivateInset(bv, x, tmp_y, button))
 596                 lt->setCursorFromCoordinates(bv, x - drawTextXOffset,
 597                                             y + insetAscent);
 598         lt->clearSelection(bv);
 599         finishUndo();
 600         showInsetCursor(bv);
 601         updateLocal(bv, CURSOR, false);
 602
 603         // If the inset is empty set the language of the current font to the
 604         // language to the surronding text (if different).
 605         if (par->size() == 0 && !par->next() &&
 606                 bv->getParentLanguage(this) != lt->current_font.language()) {
 607                 LyXFont font(LyXFont::ALL_IGNORE);
 608                 font.setLanguage(bv->getParentLanguage(this));
 609                 setFont(bv, font, false);
 610         }
 611         if (clear)
 612                 lt = 0;
 613 }
 614
 615
 616 void InsetText::edit(BufferView * bv, bool front)
 617 {
 618         UpdatableInset::edit(bv, front);
 619
 620         if (!bv->lockInset(this)) {
 621                 lyxerr[Debug::INSETS] << "Cannot lock inset" << endl;
 622                 return;
 623         }
 624         locked = true;
 625         the_locking_inset = 0;
 626         inset_pos = inset_x = inset_y = 0;
 627         inset_boundary = false;
 628         inset_par = 0;
 629         old_par = 0;
 630         bool clear = false;
 631         if (!lt) {
 632                 lt = getLyXText(bv);
 633                 clear = true;
 634         }
 635         if (front)
 636                 lt->setCursor(bv, par, 0);
 637         else {
 638                 Paragraph * p = par;
 639                 while(p->next())
 640                         p = p->next();
 641                 lt->setCursor(bv, p, p->size()-1);
 642         }
 643         lt->clearSelection(bv);
 644         finishUndo();
 645         showInsetCursor(bv);
 646         updateLocal(bv, CURSOR, false);
 647
 648         // If the inset is empty set the language of the current font to the
 649         // language to the surronding text (if different).
 650         if (par->size() == 0 && !par->next() &&
 651                 bv->getParentLanguage(this) != lt->current_font.language()) {
 652                 LyXFont font(LyXFont::ALL_IGNORE);
 653                 font.setLanguage(bv->getParentLanguage(this));
 654                 setFont(bv, font, false);
 655         }
 656         if (clear)
 657                 lt = 0;
 658 }
 659
 660
 661 void InsetText::insetUnlock(BufferView * bv)
 662 {
 663         if (the_locking_inset) {
 664                 the_locking_inset->insetUnlock(bv);
 665                 the_locking_inset = 0;
 666         }
 667         hideInsetCursor(bv);
 668         no_selection = false;
 669         locked = false;
 670         int code;
 671         if (drawFrame_ == LOCKED)
 672                 code = CURSOR|CLEAR_FRAME;
 673         else
 674                 code = CURSOR;
 675         bool clear = false;
 676         if (!lt) {
 677                 lt = getLyXText(bv);
 678                 clear = true;
 679         }
 680         if (lt->selection.set()) {
 681                 lt->clearSelection(bv);
 682                 code = FULL;
 683         } else if (owner()) {
 684                 bv->owner()->setLayout(owner()->getLyXText(bv)
 685                                        ->cursor.par()->getLayout());
 686         } else
 687                 bv->owner()->setLayout(bv->text->cursor.par()->getLayout());
 688         updateLocal(bv, code, false);
 689         if (clear)
 690                 lt = 0;
 691 }
 692
 693
 694 bool InsetText::lockInsetInInset(BufferView * bv, UpdatableInset * inset)
 695 {
 696         lyxerr[Debug::INSETS] << "InsetText::LockInsetInInset("
 697                               << inset << "): ";
 698         if (!inset)
 699                 return false;
 700         if (inset == cpar(bv)->getInset(cpos(bv))) {
 701                 lyxerr[Debug::INSETS] << "OK" << endl;
 702                 the_locking_inset = inset;
 703                 inset_x = cx(bv) - top_x + drawTextXOffset;
 704                 inset_y = cy(bv) + drawTextYOffset;
 705                 inset_pos = cpos(bv);
 706                 inset_par = cpar(bv);
 707                 inset_boundary = cboundary(bv);
 708                 updateLocal(bv, CURSOR, false);
 709                 return true;
 710         } else if (the_locking_inset && (the_locking_inset == inset)) {
 711                 if (cpar(bv) == inset_par && cpos(bv) == inset_pos) {
 712                         lyxerr[Debug::INSETS] << "OK" << endl;
 713                         inset_x = cx(bv) - top_x + drawTextXOffset;
 714                         inset_y = cy(bv) + drawTextYOffset;
 715                 } else {
 716                         lyxerr[Debug::INSETS] << "cursor.pos != inset_pos" << endl;
 717                 }
 718         } else if (the_locking_inset) {
 719                 lyxerr[Debug::INSETS] << "MAYBE" << endl;
 720                 return the_locking_inset->lockInsetInInset(bv, inset);
 721         }
 722         lyxerr[Debug::INSETS] << "NOT OK" << endl;
 723         return false;
 724 }
 725
 726
 727 bool InsetText::unlockInsetInInset(BufferView * bv, UpdatableInset * inset,
 728                                    bool lr)
 729 {
 730         if (!the_locking_inset)
 731                 return false;
 732         if (the_locking_inset == inset) {
 733                 the_locking_inset->insetUnlock(bv);
 734                 getLyXText(bv)->updateInset(bv, inset);
 735                 the_locking_inset = 0;
 736                 if (lr)
 737                         moveRight(bv, false);
 738                 old_par = 0; // force layout setting
 739                 if (scroll())
 740                         scroll(bv, 0.0F);
 741                 else
 742                         updateLocal(bv, CURSOR, false);
 743                 return true;
 744         }
 745         return the_locking_inset->unlockInsetInInset(bv, inset, lr);
 746 }
 747
 748
 749 bool InsetText::updateInsetInInset(BufferView * bv, Inset * inset)
 750 {
 751         if (!the_locking_inset)
 752                 return false;
 753         if (the_locking_inset != inset) {
 754                 getLyXText(bv)->updateInset(bv, the_locking_inset);
 755                 setUpdateStatus(bv, CURSOR_PAR);
 756                 return the_locking_inset->updateInsetInInset(bv, inset);
 757         }
 758 //    updateLocal(bv, FULL, false);
 759         if (getLyXText(bv)->updateInset(bv, inset))
 760                 updateLocal(bv, CURSOR_PAR, false);
 761         if (cpar(bv) == inset_par && cpos(bv) == inset_pos) {
 762                 inset_x = cx(bv) - top_x + drawTextXOffset;
 763                 inset_y = cy(bv) + drawTextYOffset;
 764         }
 765         return true;
 766 }
 767
 768
 769 void InsetText::insetButtonPress(BufferView * bv, int x, int y, int button)
 770 {
 771         no_selection = true;
 772
 773         int tmp_x = x - drawTextXOffset;
 774         int tmp_y = y + insetAscent - getLyXText(bv)->first;
 775         Inset * inset = bv->checkInsetHit(getLyXText(bv), tmp_x, tmp_y, button);
 776
 777         hideInsetCursor(bv);
 778         if (the_locking_inset) {
 779                 if (the_locking_inset == inset) {
 780                         the_locking_inset->insetButtonPress(bv,x-inset_x,y-inset_y,button);
 781                         no_selection = false;
 782                         return;
 783                 } else if (inset) {
 784                         // otherwise unlock the_locking_inset and lock the new inset
 785                         the_locking_inset->insetUnlock(bv);
 786                         inset_x = cx(bv) - top_x + drawTextXOffset;
 787                         inset_y = cy(bv) + drawTextYOffset;
 788                         the_locking_inset = static_cast<UpdatableInset*>(inset);
 789                         inset->insetButtonPress(bv, x - inset_x, y - inset_y, button);
 790                         inset->edit(bv, x - inset_x, y - inset_y, button);
 791                         if (the_locking_inset)
 792                                 updateLocal(bv, CURSOR, false);
 793                         no_selection = false;
 794                         return;
 795                 }
 796                 // otherwise only unlock the_locking_inset
 797                 the_locking_inset->insetUnlock(bv);
 798                 the_locking_inset = 0;
 799         }
 800         if (bv->theLockingInset()) {
 801                 if (inset && inset->editable() == Inset::HIGHLY_EDITABLE) {
 802                         UpdatableInset * uinset = static_cast<UpdatableInset*>(inset);
 803                         inset_x = cx(bv) - top_x + drawTextXOffset;
 804                         inset_y = cy(bv) + drawTextYOffset;
 805                         inset_pos = cpos(bv);
 806                         inset_par = cpar(bv);
 807                         inset_boundary = cboundary(bv);
 808                         the_locking_inset = uinset;
 809                         uinset->insetButtonPress(bv, x - inset_x, y - inset_y,
 810                                                  button);
 811                         uinset->edit(bv, x - inset_x, y - inset_y, 0);
 812                         if (the_locking_inset)
 813                                 updateLocal(bv, CURSOR, false);
 814                         no_selection = false;
 815                         return;
 816                 }
 817         }
 818         if (!inset) { // && (button == 2)) {
 819                 bool paste_internally = false;
 820                 if ((button == 2) && getLyXText(bv)->selection.set()) {
 821                         localDispatch(bv, LFUN_COPY, "");
 822                         paste_internally = true;
 823                 }
 824                 getLyXText(bv)->setCursorFromCoordinates(bv, x-drawTextXOffset,
 825                                                          y + insetAscent);
 826                 getLyXText(bv)->selection.cursor = getLyXText(bv)->cursor;
 827                 updateLocal(bv, CURSOR, false);
 828                 bv->owner()->setLayout(cpar(bv)->getLayout());
 829                 old_par = cpar(bv);
 830                 // Insert primary selection with middle mouse
 831                 // if there is a local selection in the current buffer,
 832                 // insert this
 833                 if (button == 2) {
 834                         if (paste_internally)
 835                                 localDispatch(bv, LFUN_PASTE, "");
 836                         else
 837                                 localDispatch(bv, LFUN_PASTESELECTION,
 838                                               "paragraph");
 839                 }
 840         }
 841         showInsetCursor(bv);
 842         no_selection = false;
 843 }
 844
 845
 846 void InsetText::insetButtonRelease(BufferView * bv, int x, int y, int button)
 847 {
 848         UpdatableInset * inset = 0;
 849
 850         if (the_locking_inset) {
 851                 the_locking_inset->insetButtonRelease(bv,
 852                                                       x - inset_x, y - inset_y,
 853                                                       button);
 854         } else {
 855                 if (cpar(bv)->getChar(cpos(bv)) == Paragraph::META_INSET) {
 856                         inset = static_cast<UpdatableInset*>(cpar(bv)->getInset(cpos(bv)));
 857                         if (inset->editable() == Inset::HIGHLY_EDITABLE) {
 858                                 inset->insetButtonRelease(bv,
 859                                                           x - inset_x,
 860                                                           y - inset_y, button);
 861                         } else {
 862                                 inset_x = cx(bv) - top_x + drawTextXOffset;
 863                                 inset_y = cy(bv) + drawTextYOffset;
 864                                 inset->insetButtonRelease(bv,
 865                                                           x - inset_x,
 866                                                           y - inset_y, button);
 867                                 inset->edit(bv,
 868                                             x - inset_x, y - inset_y, button);
 869                         }
 870                         updateLocal(bv, CURSOR_PAR, false);
 871                 }
 872         }
 873         no_selection = false;
 874 }
 875
 876
 877 void InsetText::insetMotionNotify(BufferView * bv, int x, int y, int state)
 878 {
 879         if (no_selection)
 880                 return;
 881         if (the_locking_inset) {
 882                 the_locking_inset->insetMotionNotify(bv, x - inset_x,
 883                                                      y - inset_y,state);
 884                 return;
 885         }
 886         LyXText * t = getLyXText(bv);
 887         hideInsetCursor(bv);
 888         t->setCursorFromCoordinates(bv, x - drawTextXOffset, y + insetAscent);
 889         t->setSelection(bv);
 890         if (t->toggle_cursor.par() != t->toggle_end_cursor.par() ||
 891                 t->toggle_cursor.pos() != t->toggle_end_cursor.pos())
 892                 updateLocal(bv, SELECTION, false);
 893         showInsetCursor(bv);
 894 }
 895
 896
 897 void InsetText::insetKeyPress(XKeyEvent * xke)
 898 {
 899         if (the_locking_inset) {
 900                 the_locking_inset->insetKeyPress(xke);
 901                 return;
 902         }
 903 }
 904
 905
 906 UpdatableInset::RESULT
 907 InsetText::localDispatch(BufferView * bv,
 908                          kb_action action, string const & arg)
 909 {
 910         no_selection = false;
 911         UpdatableInset::RESULT
 912                 result= UpdatableInset::localDispatch(bv, action, arg);
 913         if (result != UNDISPATCHED) {
 914                 return DISPATCHED;
 915         }
 916
 917         result = DISPATCHED;
 918         if ((action < 0) && arg.empty())
 919                 return FINISHED;
 920
 921         if (the_locking_inset) {
 922                 result = the_locking_inset->localDispatch(bv, action, arg);
 923                 if (result == DISPATCHED_NOUPDATE)
 924                         return result;
 925                 else if (result == DISPATCHED) {
 926                         updateLocal(bv, CURSOR_PAR, false);
 927                         return result;
 928                 } else if (result == FINISHED) {
 929                         bool dispatched = false;
 930                         switch (action) {
 931                         case LFUN_UNKNOWN_ACTION:
 932                         case LFUN_BREAKPARAGRAPH:
 933                         case LFUN_BREAKLINE:
 934                                 moveRightIntern(bv, false, false);
 935                                 break;
 936                         case LFUN_RIGHT:
 937                                 if (!getLyXText(bv)->cursor.par()->isRightToLeftPar(bv->buffer()->params))
 938                                         moveRightIntern(bv, false, false);
 939                                 dispatched = true;
 940                                 break;
 941                         case LFUN_LEFT:
 942                                 if (getLyXText(bv)->cursor.par()->isRightToLeftPar(bv->buffer()->params))
 943                                         moveRightIntern(bv, false, false);
 944                                 dispatched = true;
 945                                 break;
 946                         default:
 947                                 break;
 948                         }
 949                         the_locking_inset = 0;
 950                         if (dispatched)
 951                                 return DISPATCHED;
 952                 }
 953         }
 954         hideInsetCursor(bv);
 955         bool clear = false;
 956         if (!lt) {
 957                 lt = getLyXText(bv);
 958                 clear = true;
 959         }
 960         switch (action) {
 961         // Normal chars
 962         case LFUN_SELFINSERT:
 963                 if (bv->buffer()->isReadonly()) {
 964 //          setErrorMessage(N_("Document is read only"));
 965                         break;
 966                 }
 967                 if (!arg.empty()) {
 968                         /* Automatically delete the currently selected
 969                          * text and replace it with what is being
 970                          * typed in now. Depends on lyxrc settings
 971                          * "auto_region_delete", which defaults to
 972                          * true (on). */
 973
 974                         setUndo(bv, Undo::INSERT,
 975                                 lt->cursor.par(), lt->cursor.par()->next());
 976                         bv->setState();
 977                         if (lyxrc.auto_region_delete) {
 978                                 if (lt->selection.set()) {
 979                                         lt->cutSelection(bv, false);
 980                                 }
 981                         }
 982                         lt->clearSelection(bv);
 983                         for (string::size_type i = 0; i < arg.length(); ++i) {
 984                                 if (greek_kb_flag) {
 985                                         if (!math_insert_greek(bv, arg[i])) {
 986                                                 bv->owner()->getIntl()->getTrans().TranslateAndInsert(arg[i], lt);
 987                                         } else if (!the_locking_inset) {
 988                                                 (void)moveRight(bv, false);
 989                                         }
 990                                 } else {
 991                                         bv->owner()->getIntl()->getTrans().TranslateAndInsert(arg[i], lt);
 992                                 }
 993                         }
 994                 }
 995                 lt->selection.cursor = lt->cursor;
 996                 updateLocal(bv, CURSOR_PAR, true);
 997                 result = DISPATCHED_NOUPDATE;
 998                 break;
 999                 // --- Cursor Movements -----------------------------------
1000         case LFUN_RIGHTSEL:
1001                 finishUndo();
1002                 moveRight(bv, false, true);
1003                 lt->setSelection(bv);
1004                 updateLocal(bv, SELECTION, false);
1005                 break;
1006         case LFUN_RIGHT:
1007                 result = moveRight(bv);
1008                 finishUndo();
1009                 updateLocal(bv, CURSOR, false);
1010                 break;
1011         case LFUN_LEFTSEL:
1012                 finishUndo();
1013                 moveLeft(bv, false, true);
1014                 lt->setSelection(bv);
1015                 updateLocal(bv, SELECTION, false);
1016                 break;
1017         case LFUN_LEFT:
1018                 finishUndo();
1019                 result = moveLeft(bv);
1020                 updateLocal(bv, CURSOR, false);
1021                 break;
1022         case LFUN_DOWNSEL:
1023                 finishUndo();
1024                 moveDown(bv);
1025                 lt->setSelection(bv);
1026                 updateLocal(bv, SELECTION, false);
1027                 break;
1028         case LFUN_DOWN:
1029                 finishUndo();
1030                 result = moveDown(bv);
1031                 updateLocal(bv, CURSOR, false);
1032                 break;
1033         case LFUN_UPSEL:
1034                 finishUndo();
1035                 moveUp(bv);
1036                 lt->setSelection(bv);
1037                 updateLocal(bv, SELECTION, false);
1038                 break;
1039         case LFUN_UP:
1040                 finishUndo();
1041                 result = moveUp(bv);
1042                 updateLocal(bv, CURSOR, false);
1043                 break;
1044         case LFUN_HOME:
1045                 finishUndo();
1046                 lt->cursorHome(bv);
1047                 updateLocal(bv, CURSOR, false);
1048                 break;
1049         case LFUN_END:
1050                 lt->cursorEnd(bv);
1051                 updateLocal(bv, CURSOR, false);
1052                 break;
1053         case LFUN_BACKSPACE: {
1054                 setUndo(bv, Undo::DELETE,
1055                         lt->cursor.par(), lt->cursor.par()->next());
1056                 if (lt->selection.set())
1057                         lt->cutSelection(bv);
1058                 else
1059                         lt->backspace(bv);
1060                 updateLocal(bv, CURSOR_PAR, true);
1061         }
1062         break;
1063
1064         case LFUN_DELETE: {
1065                 setUndo(bv, Undo::DELETE,
1066                         lt->cursor.par(), lt->cursor.par()->next());
1067                 if (lt->selection.set()) {
1068                         lt->cutSelection(bv);
1069                 } else {
1070                         lt->Delete(bv);
1071                 }
1072                 updateLocal(bv, CURSOR_PAR, true);
1073         }
1074         break;
1075
1076         case LFUN_CUT: {
1077                 setUndo(bv, Undo::DELETE,
1078                         lt->cursor.par(), lt->cursor.par()->next());
1079                 lt->cutSelection(bv);
1080                 updateLocal(bv, CURSOR_PAR, true);
1081         }
1082         break;
1083
1084         case LFUN_COPY:
1085                 finishUndo();
1086                 lt->copySelection(bv);
1087                 updateLocal(bv, CURSOR_PAR, false);
1088                 break;
1089         case LFUN_PASTESELECTION:
1090         {
1091                 string const clip(bv->getClipboard());
1092
1093                 if (clip.empty())
1094                         break;
1095                 if (arg == "paragraph") {
1096                         lt->insertStringAsParagraphs(bv, clip);
1097                 } else {
1098                         lt->insertStringAsLines(bv, clip);
1099                 }
1100                 updateLocal(bv, CURSOR_PAR, true);
1101                 break;
1102         }
1103         case LFUN_PASTE: {
1104                 if (!autoBreakRows) {
1105
1106                         if (CutAndPaste::nrOfParagraphs() > 1) {
1107                                 WriteAlert(_("Impossible operation"),
1108                                                    _("Cannot include more than one paragraph!"),
1109                                                    _("Sorry."));
1110                                 break;
1111                         }
1112                 }
1113                 setUndo(bv, Undo::INSERT,
1114                         lt->cursor.par(), lt->cursor.par()->next());
1115                 lt->pasteSelection(bv);
1116                 updateLocal(bv, CURSOR_PAR, true);
1117         }
1118         break;
1119
1120         case LFUN_BREAKPARAGRAPH:
1121                 if (!autoBreakRows) {
1122                         result = DISPATCHED;
1123                         break;
1124                 }
1125                 lt->breakParagraph(bv, 0);
1126                 updateLocal(bv, FULL, true);
1127                 break;
1128         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
1129                 if (!autoBreakRows) {
1130                         result = DISPATCHED;
1131                         break;
1132                 }
1133                 lt->breakParagraph(bv, 1);
1134                 updateLocal(bv, FULL, true);
1135                 break;
1136
1137         case LFUN_BREAKLINE: {
1138                 if (!autoBreakRows) {
1139                         result = DISPATCHED;
1140                         break;
1141                 }
1142                 setUndo(bv, Undo::INSERT,
1143                         lt->cursor.par(), lt->cursor.par()->next());
1144                 lt->insertChar(bv, Paragraph::META_NEWLINE);
1145                 updateLocal(bv, CURSOR_PAR, true);
1146         }
1147         break;
1148
1149         case LFUN_LAYOUT:
1150                 // do not set layouts on non breakable textinsets
1151                 if (autoBreakRows) {
1152                         LyXTextClass::size_type cur_layout = cpar(bv)->layout;
1153
1154                         // Derive layout number from given argument (string)
1155                         // and current buffer's textclass (number). */
1156                         LyXTextClassList::ClassList::size_type tclass =
1157                                 bv->buffer()->params.textclass;
1158                         std::pair <bool, LyXTextClass::size_type> layout =
1159                                 textclasslist.NumberOfLayout(tclass, arg);
1160
1161                         // If the entry is obsolete, use the new one instead.
1162                         if (layout.first) {
1163                                 string obs = textclasslist.Style(tclass,layout.second).
1164                                         obsoleted_by();
1165                                 if (!obs.empty())
1166                                         layout = textclasslist.NumberOfLayout(tclass, obs);
1167                         }
1168
1169                         // see if we found the layout number:
1170                         if (!layout.first) {
1171                                 string const msg = string(N_("Layout ")) + arg + N_(" not known");
1172                                 bv->owner()->getLyXFunc()->dispatch(LFUN_MESSAGE, msg);
1173                                 break;
1174                         }
1175
1176                         if (cur_layout != layout.second) {
1177                                 cur_layout = layout.second;
1178                                 lt->setLayout(bv, layout.second);
1179                                 bv->owner()->setLayout(cpar(bv)->getLayout());
1180                                 updateLocal(bv, CURSOR_PAR, true);
1181                         }
1182                 } else {
1183                         // reset the layout box
1184                         bv->owner()->setLayout(cpar(bv)->getLayout());
1185                 }
1186                 break;
1187         case LFUN_PARAGRAPH_SPACING:
1188                 // This one is absolutely not working. When fiddling with this
1189                 // it also seems to me that the paragraphs inside the insettext
1190                 // inherit bufferparams/paragraphparams in a strange way. (Lgb)
1191         {
1192                 Paragraph * par = lt->cursor.par();
1193                 Spacing::Space cur_spacing = par->params().spacing().getSpace();
1194                 float cur_value = 1.0;
1195                 if (cur_spacing == Spacing::Other) {
1196                         cur_value = par->params().spacing().getValue();
1197                 }
1198
1199                 istringstream istr(arg.c_str());
1200                 string tmp;
1201                 istr >> tmp;
1202                 Spacing::Space new_spacing = cur_spacing;
1203                 float new_value = cur_value;
1204                 if (tmp.empty()) {
1205                         lyxerr << "Missing argument to `paragraph-spacing'"
1206                                    << endl;
1207                 } else if (tmp == "single") {
1208                         new_spacing = Spacing::Single;
1209                 } else if (tmp == "onehalf") {
1210                         new_spacing = Spacing::Onehalf;
1211                 } else if (tmp == "double") {
1212                         new_spacing = Spacing::Double;
1213                 } else if (tmp == "other") {
1214                         new_spacing = Spacing::Other;
1215                         float tmpval = 0.0;
1216                         istr >> tmpval;
1217                         lyxerr << "new_value = " << tmpval << endl;
1218                         if (tmpval != 0.0)
1219                                 new_value = tmpval;
1220                 } else if (tmp == "default") {
1221                         new_spacing = Spacing::Default;
1222                 } else {
1223                         lyxerr << _("Unknown spacing argument: ")
1224                                    << arg << endl;
1225                 }
1226                 if (cur_spacing != new_spacing || cur_value != new_value) {
1227                         par->params().spacing(Spacing(new_spacing, new_value));
1228                         updateLocal(bv, CURSOR_PAR, true);
1229                 }
1230         }
1231         break;
1232
1233         default:
1234                 if (!bv->Dispatch(action, arg))
1235                         result = UNDISPATCHED;
1236                 break;
1237         }
1238
1239         /// If the action has deleted all text in the inset, we need to change the
1240         // language to the language of the surronding text.
1241         if (par->size() == 0 && !par->next()) {
1242                 LyXFont font(LyXFont::ALL_IGNORE);
1243                 font.setLanguage(bv->getParentLanguage(this));
1244                 setFont(bv, font, false);
1245         }
1246
1247         if (result != FINISHED) {
1248                 showInsetCursor(bv);
1249         } else
1250                 bv->unlockInset(this);
1251         if (clear)
1252                 lt = 0;
1253         return result;
1254 }
1255
1256
1257 int InsetText::latex(Buffer const * buf, ostream & os, bool, bool) const
1258 {
1259         TexRow texrow;
1260         buf->latexParagraphs(os, par, 0, texrow);
1261         return texrow.rows();
1262 }
1263
1264
1265 int InsetText::ascii(Buffer const * buf, ostream & os, int linelen) const
1266 {
1267         Paragraph * p = par;
1268         unsigned int lines = 0;
1269
1270         while (p) {
1271                 string const tmp = buf->asciiParagraph(p, linelen);
1272                 lines += countChar(tmp, '\n');
1273                 os << tmp;
1274                 p = p->next();
1275         }
1276         return lines;
1277 }
1278
1279
1280 int InsetText::docBook(Buffer const * buf, ostream & os) const
1281 {
1282         Paragraph * p = par;
1283         unsigned int lines = 0;
1284         int desc = 0;
1285
1286         string tmp;
1287         while (p) {
1288                 buf->simpleDocBookOnePar(os, tmp, p, desc, 0);
1289                 p = p->next();
1290         }
1291
1292         return lines;
1293 }
1294
1295
1296 void InsetText::validate(LaTeXFeatures & features) const
1297 {
1298         Paragraph * p = par;
1299         while (p) {
1300                 p->validate(features);
1301                 p = p->next();
1302         }
1303 }
1304
1305
1306 int InsetText::beginningOfMainBody(Buffer const * buf, Paragraph * p) const
1307 {
1308         if (textclasslist.Style(buf->params.textclass,
1309                                 p->getLayout()).labeltype != LABEL_MANUAL)
1310                 return 0;
1311         else
1312                 return p->beginningOfMainBody();
1313 }
1314
1315
1316 void InsetText::getCursorPos(BufferView * bv,
1317                              int & x, int & y) const
1318 {
1319         if (the_locking_inset) {
1320                 the_locking_inset->getCursorPos(bv, x, y);
1321                 return;
1322         }
1323         x = cx(bv);
1324         y = cy(bv);
1325 }
1326
1327
1328 unsigned int InsetText::insetInInsetY()
1329 {
1330         if (!the_locking_inset)
1331                 return 0;
1332
1333         return (inset_y + the_locking_inset->insetInInsetY());
1334 }
1335
1336
1337 void InsetText::toggleInsetCursor(BufferView * bv)
1338 {
1339         if (the_locking_inset) {
1340                 the_locking_inset->toggleInsetCursor(bv);
1341                 return;
1342         }
1343
1344         LyXFont const font(getLyXText(bv)->getFont(bv->buffer(), cpar(bv), cpos(bv)));
1345
1346         int const asc = lyxfont::maxAscent(font);
1347         int const desc = lyxfont::maxDescent(font);
1348
1349         if (isCursorVisible())
1350                 bv->hideLockedInsetCursor();
1351         else
1352                 bv->showLockedInsetCursor(cx(bv), cy(bv), asc, desc);
1353         toggleCursorVisible();
1354 }
1355
1356
1357 void InsetText::showInsetCursor(BufferView * bv, bool show)
1358 {
1359         if (the_locking_inset) {
1360                 the_locking_inset->showInsetCursor(bv, show);
1361                 return;
1362         }
1363         if (!isCursorVisible()) {
1364                 LyXFont const font =
1365                         getLyXText(bv)->getFont(bv->buffer(), cpar(bv), cpos(bv));
1366
1367                 int const asc = lyxfont::maxAscent(font);
1368                 int const desc = lyxfont::maxDescent(font);
1369
1370                 bv->fitLockedInsetCursor(cx(bv), cy(bv), asc, desc);
1371                 if (show)
1372                         bv->showLockedInsetCursor(cx(bv), cy(bv), asc, desc);
1373                 setCursorVisible(true);
1374         }
1375 }
1376
1377
1378 void InsetText::hideInsetCursor(BufferView * bv)
1379 {
1380         if (isCursorVisible()) {
1381                 bv->hideLockedInsetCursor();
1382                 setCursorVisible(false);
1383         }
1384         if (the_locking_inset)
1385                 the_locking_inset->hideInsetCursor(bv);
1386 }
1387
1388
1389 void InsetText::fitInsetCursor(BufferView * bv) const
1390 {
1391         if (the_locking_inset) {
1392                 the_locking_inset->fitInsetCursor(bv);
1393                 return;
1394         }
1395         LyXFont const font =
1396                 getLyXText(bv)->getFont(bv->buffer(), cpar(bv), cpos(bv));
1397
1398         int const asc = lyxfont::maxAscent(font);
1399         int const desc = lyxfont::maxDescent(font);
1400
1401         bv->fitLockedInsetCursor(cx(bv), cy(bv), asc, desc);
1402 }
1403
1404
1405 UpdatableInset::RESULT
1406 InsetText::moveRight(BufferView * bv, bool activate_inset, bool selecting)
1407 {
1408         if (getLyXText(bv)->cursor.par()->isRightToLeftPar(bv->buffer()->params))
1409                 return moveLeftIntern(bv, false, activate_inset, selecting);
1410         else
1411                 return moveRightIntern(bv, false, activate_inset, selecting);
1412 }
1413
1414
1415 UpdatableInset::RESULT
1416 InsetText::moveLeft(BufferView * bv, bool activate_inset, bool selecting)
1417 {
1418         if (getLyXText(bv)->cursor.par()->isRightToLeftPar(bv->buffer()->params))
1419                 return moveRightIntern(bv, true, activate_inset, selecting);
1420         else
1421                 return moveLeftIntern(bv, true, activate_inset, selecting);
1422 }
1423
1424
1425 UpdatableInset::RESULT
1426 InsetText::moveRightIntern(BufferView * bv, bool behind,
1427                            bool activate_inset, bool selecting)
1428 {
1429         if (!cpar(bv)->next() && (cpos(bv) >= cpar(bv)->size()))
1430                 return FINISHED;
1431         if (activate_inset && checkAndActivateInset(bv, behind))
1432                 return DISPATCHED;
1433         getLyXText(bv)->cursorRight(bv);
1434         if (!selecting)
1435                 getLyXText(bv)->selection.cursor = getLyXText(bv)->cursor;
1436         return DISPATCHED_NOUPDATE;
1437 }
1438
1439
1440 UpdatableInset::RESULT
1441 InsetText::moveLeftIntern(BufferView * bv, bool behind,
1442                           bool activate_inset, bool selecting)
1443 {
1444         if (!cpar(bv)->previous() && (cpos(bv) <= 0))
1445                 return FINISHED;
1446         getLyXText(bv)->cursorLeft(bv);
1447         if (!selecting)
1448                 getLyXText(bv)->selection.cursor = getLyXText(bv)->cursor;
1449         if (activate_inset && checkAndActivateInset(bv, behind))
1450                 return DISPATCHED;
1451         return DISPATCHED_NOUPDATE;
1452 }
1453
1454
1455 UpdatableInset::RESULT
1456 InsetText::moveUp(BufferView * bv)
1457 {
1458         if (!crow(bv)->previous())
1459                 return FINISHED;
1460         getLyXText(bv)->cursorUp(bv);
1461         return DISPATCHED_NOUPDATE;
1462 }
1463
1464
1465 UpdatableInset::RESULT
1466 InsetText::moveDown(BufferView * bv)
1467 {
1468         if (!crow(bv)->next())
1469                 return FINISHED;
1470         getLyXText(bv)->cursorDown(bv);
1471         return DISPATCHED_NOUPDATE;
1472 }
1473
1474
1475 bool InsetText::insertInset(BufferView * bv, Inset * inset)
1476 {
1477         if (the_locking_inset) {
1478                 if (the_locking_inset->insetAllowed(inset))
1479                         return the_locking_inset->insertInset(bv, inset);
1480                 return false;
1481         }
1482         inset->setOwner(this);
1483         hideInsetCursor(bv);
1484
1485         bool clear = false;
1486         if (!lt) {
1487                 lt = getLyXText(bv);
1488                 clear = true;
1489         }
1490         lt->insertInset(bv, inset);
1491         if ((cpar(bv)->getChar(cpos(bv)) != Paragraph::META_INSET) ||
1492                 (cpar(bv)->getInset(cpos(bv)) != inset))
1493                 lt->cursorLeft(bv);
1494         bv->fitCursor(lt);
1495         updateLocal(bv, CURSOR_PAR|CURSOR, true);
1496         showInsetCursor(bv);
1497         if (clear)
1498                 lt = 0;
1499         return true;
1500 }
1501
1502
1503 bool InsetText::insetAllowed(Inset::Code code) const
1504 {
1505         if (the_locking_inset)
1506                 return the_locking_inset->insetAllowed(code);
1507         return true;
1508 }
1509
1510
1511 UpdatableInset * InsetText::getLockingInset() const
1512 {
1513         return the_locking_inset ? the_locking_inset->getLockingInset() :
1514                 const_cast<InsetText *>(this);
1515 }
1516
1517
1518 UpdatableInset * InsetText::getFirstLockingInsetOfType(Inset::Code c)
1519 {
1520         if (c == lyxCode())
1521                 return this;
1522         if (the_locking_inset)
1523                 return the_locking_inset->getFirstLockingInsetOfType(c);
1524         return 0;
1525 }
1526
1527
1528 bool InsetText::showInsetDialog(BufferView * bv) const
1529 {
1530         if (the_locking_inset)
1531                 return the_locking_inset->showInsetDialog(bv);
1532         return false;
1533 }
1534
1535
1536 std::vector<string> const InsetText::getLabelList() const
1537 {
1538         std::vector<string> label_list;
1539
1540         Paragraph * tpar = par;
1541         while (tpar) {
1542                 Paragraph::inset_iterator beg = tpar->inset_iterator_begin();
1543                 Paragraph::inset_iterator end = tpar->inset_iterator_end();
1544                 for (; beg != end; ++beg) {
1545                         std::vector<string> const l = (*beg)->getLabelList();
1546                         label_list.insert(label_list.end(), l.begin(), l.end());
1547                 }
1548                 tpar = tpar->next();
1549         }
1550         return label_list;
1551 }
1552
1553
1554 void InsetText::setFont(BufferView * bv, LyXFont const & font, bool toggleall,
1555                         bool selectall)
1556 {
1557         if (the_locking_inset) {
1558                 the_locking_inset->setFont(bv, font, toggleall, selectall);
1559                 return;
1560         }
1561         bool clear = false;
1562         if (!lt) {
1563                 lt = getLyXText(bv);
1564                 clear = true;
1565         }
1566         if (lt->selection.set()) {
1567                 setUndo(bv, Undo::EDIT, lt->cursor.par(), lt->cursor.par()->next());
1568         }
1569         if (selectall)
1570                 selectAll(bv);
1571 #if 1
1572         lt->toggleFree(bv, font, toggleall);
1573 #else
1574         lt->setFont(bv, font, toggleall);
1575 #endif
1576         if (selectall)
1577                 lt->clearSelection(bv);
1578         bv->fitCursor(lt);
1579         if (selectall || lt->selection.set())
1580                 updateLocal(bv, FULL, true);
1581         else
1582                 updateLocal(bv, CURSOR_PAR, true);
1583         if (clear)
1584                 lt = 0;
1585 }
1586
1587
1588 bool InsetText::checkAndActivateInset(BufferView * bv, bool behind)
1589 {
1590         if (cpar(bv)->getChar(cpos(bv)) == Paragraph::META_INSET) {
1591                 unsigned int x;
1592                 unsigned int y;
1593                 Inset * inset =
1594                         static_cast<UpdatableInset*>(cpar(bv)->getInset(cpos(bv)));
1595                 if (!inset || inset->editable() != Inset::HIGHLY_EDITABLE)
1596                         return false;
1597                 LyXFont const font =
1598                         getLyXText(bv)->getFont(bv->buffer(), cpar(bv), cpos(bv));
1599                 if (behind) {
1600                         x = inset->width(bv, font);
1601                         y = font.isRightToLeft() ? 0 : inset->descent(bv, font);
1602                 } else {
1603                         x = 0;
1604                         y = font.isRightToLeft() ? inset->descent(bv, font) : 0;
1605                 }
1606                 //inset_x = cx(bv) - top_x + drawTextXOffset;
1607                 //inset_y = cy(bv) + drawTextYOffset;
1608                 inset->edit(bv, x, y, 0);
1609                 if (!the_locking_inset)
1610                         return false;
1611                 updateLocal(bv, CURSOR, false);
1612                 return true;
1613         }
1614         return false;
1615 }
1616
1617
1618 bool InsetText::checkAndActivateInset(BufferView * bv, int x, int y,
1619                                       int button)
1620 {
1621         x -= drawTextXOffset;
1622         int dummyx = x;
1623         int dummyy = y + insetAscent;
1624         Inset * inset = bv->checkInsetHit(getLyXText(bv), dummyx, dummyy, button);
1625
1626         if (inset) {
1627                 if (x < 0)
1628                         x = insetWidth;
1629                 if (y < 0)
1630                         y = insetDescent;
1631                 inset_x = cx(bv) - top_x + drawTextXOffset;
1632                 inset_y = cy(bv) + drawTextYOffset;
1633                 inset->edit(bv, x - inset_x, y - inset_y, button);
1634                 if (!the_locking_inset)
1635                         return false;
1636                 updateLocal(bv, CURSOR, false);
1637                 return true;
1638         }
1639         return false;
1640 }
1641
1642
1643 int InsetText::getMaxWidth(BufferView * bv, UpdatableInset const * inset) const
1644 {
1645         int w = UpdatableInset::getMaxWidth(bv, inset);
1646         if (w < 0) {
1647                 return w;
1648         }
1649         if (owner()) {
1650                 w = w - top_x + owner()->x();
1651                 return w;
1652         }
1653         w -= (2 * TEXT_TO_INSET_OFFSET);
1654         return w - top_x;
1655 //    return  w - (2*TEXT_TO_INSET_OFFSET);
1656 }
1657
1658
1659 void InsetText::setParagraphData(Paragraph * p)
1660 {
1661         cached_bview = 0;
1662
1663         // now also delete all caches this should be safe, hopefully
1664         cache.clear();
1665
1666         while (par) {
1667                 Paragraph * tmp = par->next();
1668                 delete par;
1669                 par = tmp;
1670         }
1671
1672         par = new Paragraph(*p);
1673         par->setInsetOwner(this);
1674         Paragraph * np = par;
1675         while (p->next()) {
1676                 p = p->next();
1677                 np->next(new Paragraph(*p));
1678                 np->next()->previous(np);
1679                 np = np->next();
1680                 np->setInsetOwner(this);
1681         }
1682
1683         need_update = INIT;
1684 }
1685
1686
1687 void InsetText::setText(string const & data)
1688 {
1689         clear();
1690         LyXFont font(LyXFont::ALL_SANE);
1691         for (unsigned int i=0; i < data.length(); ++i)
1692                 par->insertChar(i, data[i], font);
1693 }
1694
1695
1696 void InsetText::setAutoBreakRows(bool flag)
1697 {
1698         if (flag != autoBreakRows) {
1699                 autoBreakRows = flag;
1700                 need_update = FULL;
1701                 if (!flag)
1702                         removeNewlines();
1703         }
1704 }
1705
1706
1707 void InsetText::setDrawFrame(BufferView * bv, DrawFrame how)
1708 {
1709         if (how != drawFrame_) {
1710                 drawFrame_ = how;
1711                 if (bv)
1712                         updateLocal(bv, DRAW_FRAME, false);
1713         }
1714 }
1715
1716
1717 void InsetText::setFrameColor(BufferView * bv, LColor::color col)
1718 {
1719         if (frame_color != col) {
1720                 frame_color = col;
1721                 if (bv)
1722                         updateLocal(bv, DRAW_FRAME, false);
1723         }
1724 }
1725
1726
1727 int InsetText::cx(BufferView * bv) const
1728 {
1729         bool clear = false;
1730         if (!lt) {
1731                 lt = getLyXText(bv);
1732                 clear = true;
1733         }
1734         int x = lt->cursor.x() + top_x + TEXT_TO_INSET_OFFSET;
1735         if (the_locking_inset) {
1736                 LyXFont font = lt->getFont(bv->buffer(),
1737                                              lt->cursor.par(),
1738                                              lt->cursor.pos());
1739                 if (font.isVisibleRightToLeft())
1740                         x -= the_locking_inset->width(bv, font);
1741         }
1742         if (clear)
1743                 lt = 0;
1744         return x;
1745 }
1746
1747
1748 int InsetText::cy(BufferView * bv) const
1749 {
1750         LyXFont font;
1751         return getLyXText(bv)->cursor.y() - ascent(bv, font) + TEXT_TO_INSET_OFFSET;
1752 }
1753
1754
1755 Paragraph::size_type InsetText::cpos(BufferView * bv) const
1756 {
1757         return getLyXText(bv)->cursor.pos();
1758 }
1759
1760
1761 Paragraph * InsetText::cpar(BufferView * bv) const
1762 {
1763         return getLyXText(bv)->cursor.par();
1764 }
1765
1766
1767 bool InsetText::cboundary(BufferView * bv) const
1768 {
1769         return getLyXText(bv)->cursor.boundary();
1770 }
1771
1772
1773 Row * InsetText::crow(BufferView * bv) const
1774 {
1775         return getLyXText(bv)->cursor.row();
1776 }
1777
1778
1779 LyXText * InsetText::getLyXText(BufferView const * lbv,
1780                                           bool const recursive) const
1781 {
1782         if (!recursive && (cached_bview == lbv))
1783                 return cached_text.get();
1784
1785         // Super UGLY! (Lgb)
1786         BufferView * bv = const_cast<BufferView *>(lbv);
1787
1788         cached_bview = bv;
1789         Cache::iterator it = cache.find(bv);
1790
1791         if (it != cache.end() && (lt || !it->second.remove)) {
1792                 lyx::Assert(it->second.text.get());
1793
1794                 cached_text = it->second.text;
1795                 if (recursive && the_locking_inset) {
1796                         return the_locking_inset->getLyXText(bv);
1797                 }
1798                 return cached_text.get();
1799         } else if (it->second.remove) {
1800                 if (locked) {
1801                         saveLyXTextState(it->second.text.get());
1802                 } else {
1803                         sstate.lpar = 0;
1804                 }
1805                 cache.erase(bv);
1806 //              raise(SIGSTOP);
1807         }
1808
1809         cached_text.reset(new LyXText(const_cast<InsetText *>(this)));
1810         cached_text->init(bv);
1811         restoreLyXTextState(bv, cached_text.get());
1812
1813         cache.insert(make_pair(bv, cached_text));
1814
1815         if (the_locking_inset && recursive) {
1816                 return the_locking_inset->getLyXText(bv);
1817         }
1818         return cached_text.get();
1819 }
1820
1821
1822 void InsetText::deleteLyXText(BufferView * bv, bool recursive) const
1823 {
1824         cached_bview = 0;
1825
1826         Cache::iterator it = cache.find(bv);
1827
1828         if (it == cache.end()) {
1829                 return;
1830         }
1831
1832         lyx::Assert(it->second.text.get());
1833
1834         it->second.remove = true;
1835         if (recursive) {
1836                 /// then remove all LyXText in text-insets
1837                 Paragraph * p = par;
1838                 for (; p; p = p->next()) {
1839                         p->deleteInsetsLyXText(bv);
1840                 }
1841         }
1842 }
1843
1844
1845 void InsetText::resizeLyXText(BufferView * bv, bool force) const
1846 {
1847         if (!par->next() && !par->size()) // no data, resize not neccessary!
1848                 return;
1849         // one endless line, resize normally not necessary
1850         if (!force && getMaxWidth(bv, this) < 0)
1851                 return;
1852
1853         Cache::iterator it = cache.find(bv);
1854         if (it == cache.end()) {
1855                 return;
1856         }
1857         lyx::Assert(it->second.text.get());
1858
1859         LyXText * t = it->second.text.get();
1860         saveLyXTextState(t);
1861         for (Paragraph * p = par; p; p = p->next()) {
1862                 p->resizeInsetsLyXText(bv);
1863         }
1864         t->init(bv, true);
1865         restoreLyXTextState(bv, t);
1866         if (the_locking_inset) {
1867                 inset_x = cx(bv) - top_x + drawTextXOffset;
1868                 inset_y = cy(bv) + drawTextYOffset;
1869         }
1870
1871         if (bv->screen()) {
1872                         t->first = bv->screen()->topCursorVisible(t);
1873         }
1874         if (!owner())
1875                 updateLocal(bv, FULL, false);
1876         else
1877                 need_update = FULL;
1878         // this will scroll the screen such that the cursor becomes visible
1879         bv->updateScrollbar();
1880 }
1881
1882
1883 void InsetText::removeNewlines()
1884 {
1885         for (Paragraph * p = par; p; p = p->next()) {
1886                 for (int i = 0; i < p->size(); ++i) {
1887                         if (p->getChar(i) == Paragraph::META_NEWLINE)
1888                                 p->erase(i);
1889                 }
1890         }
1891 }
1892
1893
1894 bool InsetText::nodraw() const
1895 {
1896         if (the_locking_inset)
1897                 return the_locking_inset->nodraw();
1898         return UpdatableInset::nodraw();
1899 }
1900
1901
1902 int InsetText::scroll(bool recursive) const
1903 {
1904         int sx = UpdatableInset::scroll(false);
1905
1906         if (recursive && the_locking_inset)
1907                 sx += the_locking_inset->scroll(recursive);
1908
1909         return sx;
1910 }
1911
1912
1913 bool InsetText::doClearArea() const
1914 {
1915         return !locked || (need_update & (FULL|INIT));
1916 }
1917
1918
1919 void InsetText::selectAll(BufferView * bv)
1920 {
1921         getLyXText(bv)->cursorTop(bv);
1922         getLyXText(bv)->selection.cursor = getLyXText(bv)->cursor;
1923         getLyXText(bv)->cursorBottom(bv);
1924         getLyXText(bv)->setSelection(bv);
1925 }
1926
1927
1928 void InsetText::clearSelection(BufferView * bv)
1929 {
1930         getLyXText(bv)->clearSelection(bv);
1931 }
1932
1933
1934 void InsetText::clearInset(Painter & pain, int baseline, bool & cleared) const
1935 {
1936         int w =  insetWidth;
1937         int h = insetAscent + insetDescent;
1938         int ty = baseline - insetAscent;
1939
1940         if (ty < 0) {
1941                 h += ty;
1942                 ty = 0;
1943         }
1944         if ((ty + h) > pain.paperHeight())
1945                 h = pain.paperHeight();
1946         if ((top_x + drawTextXOffset + w) > pain.paperWidth())
1947                 w = pain.paperWidth();
1948         pain.fillRectangle(top_x+drawTextXOffset, ty, w, h,
1949                            backgroundColor());
1950         cleared = true;
1951         need_update = FULL;
1952 }
1953
1954
1955 Paragraph * InsetText::getParFromID(int id) const
1956 {
1957         Paragraph * result = par;
1958         Paragraph * ires = 0;
1959         while (result && result->id() != id) {
1960                 if ((ires = result->getParFromID(id)))
1961                         return ires;
1962                 result = result->next();
1963         }
1964         return result;
1965 }
1966
1967
1968 Paragraph * InsetText::firstParagraph() const
1969 {
1970         Paragraph * result;
1971         if (the_locking_inset)
1972                 if ((result = the_locking_inset->firstParagraph()))
1973                         return result;
1974         return par;
1975 }
1976
1977
1978 LyXCursor const & InsetText::cursor(BufferView * bv) const
1979 {
1980                 if (the_locking_inset)
1981                                 return the_locking_inset->cursor(bv);
1982                 return getLyXText(bv)->cursor;
1983 }
1984
1985
1986 Paragraph * InsetText::paragraph() const
1987 {
1988         return par;
1989 }
1990
1991
1992 void InsetText::paragraph(Paragraph * p)
1993 {
1994         par = p;
1995 #if 0
1996         // we now have to update/redraw all instances
1997         for (Cache::iterator cit = cache.begin(); cit != cache.end(); ++cit) {
1998                 delete cit->second;
1999                 cit->second = 0;
2000         }
2001 #endif
2002         // redraw myself when asked for
2003         need_update |= INIT;
2004 }
2005
2006
2007 Inset * InsetText::getInsetFromID(int id_arg) const
2008 {
2009         if (id_arg == id())
2010                 return const_cast<InsetText *>(this);
2011
2012         Paragraph * lp = par;
2013
2014         while(lp) {
2015                 for (Paragraph::inset_iterator it = lp->inset_iterator_begin(),
2016                          en = lp->inset_iterator_end();
2017                          it != en; ++it)
2018                 {
2019                         if ((*it)->id() == id_arg)
2020                                 return *it;
2021                         Inset * in = (*it)->getInsetFromID(id_arg);
2022                         if (in)
2023                                 return in;
2024                 }
2025                 lp = lp->next();
2026         }
2027         return 0;
2028 }
2029
2030
2031 string InsetText::selectNextWord(BufferView * bv, float & value) const
2032 {
2033         bool clear = false;
2034         string str;
2035
2036         if (!lt) {
2037                 lt = getLyXText(bv);
2038                 clear = true;
2039         }
2040         if (the_locking_inset) {
2041                 str = the_locking_inset->selectNextWord(bv, value);
2042                 if (!str.empty()) {
2043                         value += cy(bv);
2044                         if (clear)
2045                                 lt = 0;
2046                         return str;
2047                 }
2048 #warning Dekel please have a look on this one RTL? (Jug)
2049                 // we have to go on checking so move cusor to the right
2050                 lt->cursor.pos(lt->cursor.pos() + 1);
2051         }
2052         str = lt->selectNextWord(bv, value);
2053         if (str.empty())
2054                 bv->unlockInset(const_cast<InsetText *>(this));
2055         else
2056                 value = cy(bv);
2057         if (clear)
2058                 lt = 0;
2059         return str;
2060 }
2061
2062
2063 void InsetText::selectSelectedWord(BufferView * bv)
2064 {
2065         if (the_locking_inset) {
2066                 the_locking_inset->selectSelectedWord(bv);
2067                 return;
2068         }
2069         getLyXText(bv)->selectSelectedWord(bv);
2070         updateLocal(bv, SELECTION, false);
2071 }
2072
2073
2074 void InsetText::toggleSelection(BufferView * bv, bool kill_selection)
2075 {
2076         if (the_locking_inset) {
2077                 the_locking_inset->toggleSelection(bv, kill_selection);
2078         }
2079         bool clear = false;
2080         if (!lt) {
2081                 lt = getLyXText(bv);
2082                 clear = true;
2083         }
2084
2085         int x = top_x + TEXT_TO_INSET_OFFSET;
2086
2087         int y = 0;
2088         Row * row = lt->getRowNearY(y);
2089         int y_offset = top_baseline - row->ascent_of_text();
2090         y = y_offset;
2091         while ((row != 0) && ((y+row->height()) <= 0)) {
2092                 y += row->height();
2093                 row = row->next();
2094         }
2095         if (y_offset < 0)
2096                 y_offset = y;
2097
2098         if (need_update & SELECTION)
2099                 need_update = NONE;
2100         bv->screen()->toggleSelection(lt, bv, kill_selection, y_offset, x);
2101         if (clear)
2102                 lt = 0;
2103 }
2104
2105
2106 bool InsetText::searchForward(BufferView * bv, string const & str,
2107                               bool const & cs, bool const & mw)
2108 {
2109         if (the_locking_inset)
2110                 if (the_locking_inset->searchForward(bv, str, cs, mw))
2111                         return true;
2112         if (LyXFind(bv, str, true, true, cs , mw)) {
2113                 return true;
2114         }
2115         // we have to unlock ourself in this function by default!
2116         bv->unlockInset(const_cast<InsetText *>(this));
2117         return false;
2118 }
2119
2120 bool InsetText::searchBackward(BufferView * bv, string const & str,
2121                                bool const & cs, bool const & mw)
2122 {
2123         if (the_locking_inset)
2124                 if (the_locking_inset->searchBackward(bv, str, cs, mw))
2125                         return true;
2126         if (LyXFind(bv, str, false, true, cs, mw)) {
2127                 return true;
2128         }
2129         // we have to unlock ourself in this function by default!
2130         bv->unlockInset(const_cast<InsetText *>(this));
2131         return false;
2132 }