src/insets/insettext.C

   1 // -*- C++ -*-
   2 /* This file is part of
   3  * ======================================================
   4  *
   5  *           LyX, The Document Processor
   6  *
   7  *           Copyright 1998-2000 The LyX Team.
   8  *
   9  * ======================================================
  10  */
  11
  12 #include <config.h>
  13
  14 #include <fstream>
  15 #include <algorithm>
  16
  17 #include <cstdlib>
  18
  19 #ifdef __GNUG__
  20 #pragma implementation
  21 #endif
  22
  23 #include "insettext.h"
  24 #include "lyxparagraph.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 "minibuffer.h"
  41 #include "toolbar.h"
  42 #include "LColor.h"
  43 #include "support/textutils.h"
  44 #include "support/LAssert.h"
  45 #include "lyxrow.h"
  46 #include "lyxrc.h"
  47 #include "intl.h"
  48 #include "trans_mgr.h"
  49 #include "lyxscreen.h"
  50
  51 using std::ostream;
  52 using std::ifstream;
  53 using std::endl;
  54 using std::min;
  55 using std::max;
  56
  57 extern unsigned char getCurrentTextClass(Buffer *);
  58
  59 #define TEXT(a) getLyXText(a)
  60
  61 InsetText::InsetText()
  62 {
  63     par = new LyXParagraph();
  64     init();
  65 }
  66
  67
  68 InsetText::InsetText(InsetText const & ins)
  69         : UpdatableInset()
  70 {
  71     par = 0;
  72     init(&ins);
  73     autoBreakRows = ins.autoBreakRows;
  74 }
  75
  76
  77 InsetText & InsetText::operator=(InsetText const & it)
  78 {
  79     init(&it);
  80     autoBreakRows = it.autoBreakRows;
  81     return * this;
  82 }
  83
  84 void InsetText::init(InsetText const * ins)
  85 {
  86     top_y = last_width = last_height = 0;
  87     insetAscent = insetDescent = insetWidth = 0;
  88     the_locking_inset = 0;
  89     cursor_visible = false;
  90     interline_space = 1;
  91     no_selection = false;
  92     need_update = INIT;
  93     drawTextXOffset = drawTextYOffset = 0;
  94     autoBreakRows = drawLockedFrame = false;
  95     xpos = 0.0;
  96     if (ins) {
  97         SetParagraphData(ins->par);
  98         autoBreakRows = ins->autoBreakRows;
  99         drawLockedFrame = ins->drawLockedFrame;
 100     }
 101     par->SetInsetOwner(this);
 102     frame_color = LColor::insetframe;
 103     locked = false;
 104     old_par = 0;
 105 }
 106
 107
 108 InsetText::~InsetText()
 109 {
 110     LyXParagraph * p;
 111     p = par->next;
 112     delete par;
 113     while(p) {
 114         par = p;
 115         p = p->next;
 116         delete par;
 117     }
 118 }
 119
 120
 121 Inset * InsetText::Clone() const
 122 {
 123     InsetText * t = new InsetText(*this);
 124     return t;
 125 }
 126
 127
 128 void InsetText::Write(Buffer const * buf, ostream & os) const
 129 {
 130     os << "Text\n";
 131     WriteParagraphData(buf, os);
 132 }
 133
 134
 135 void InsetText::WriteParagraphData(Buffer const * buf, ostream & os) const
 136 {
 137     par->writeFile(buf, os, buf->params, 0, 0);
 138 }
 139
 140
 141 void InsetText::Read(Buffer const * buf, LyXLex & lex)
 142 {
 143     string token, tmptok;
 144     int pos = 0;
 145     LyXParagraph * return_par = 0;
 146     char depth = 0; // signed or unsigned?
 147     LyXParagraph::footnote_flag footnoteflag = LyXParagraph::NO_FOOTNOTE;
 148     LyXParagraph::footnote_kind footnotekind = LyXParagraph::FOOTNOTE;
 149     LyXFont font(LyXFont::ALL_INHERIT);
 150
 151     LyXParagraph * p;
 152     p = par->next;
 153     delete par;
 154     while(p) {
 155         par = p;
 156         p = p->next;
 157         delete par;
 158     }
 159     par = new LyXParagraph;
 160     while (lex.IsOK()) {
 161         lex.nextToken();
 162         token = lex.GetString();
 163         if (token.empty())
 164             continue;
 165         if (token == "\\end_inset")
 166             break;
 167         if (const_cast<Buffer*>(buf)->parseSingleLyXformat2Token(lex, par, return_par,
 168                                             token, pos, depth,
 169                                             font, footnoteflag,
 170                                             footnotekind)) {
 171             // the_end read this should NEVER happen
 172             lex.printError("\\the_end read in inset! Error in document!");
 173             return;
 174         }
 175     }
 176     if (!return_par)
 177             return_par = par;
 178     par = return_par;
 179     while(return_par) {
 180         return_par->SetInsetOwner(this);
 181         return_par = return_par->next;
 182     }
 183
 184     if (token != "\\end_inset") {
 185         lex.printError("Missing \\end_inset at this point. "
 186                        "Read: `$$Token'");
 187     }
 188     need_update = INIT;
 189 }
 190
 191
 192 int InsetText::ascent(Painter &, LyXFont const &) const
 193 {
 194     return insetAscent;
 195 }
 196
 197
 198 int InsetText::descent(Painter &, LyXFont const &) const
 199 {
 200     return insetDescent;
 201 }
 202
 203
 204 int InsetText::width(Painter &, LyXFont const &) const
 205 {
 206     return insetWidth;
 207 }
 208
 209 int InsetText::textWidth(Painter & pain) const
 210 {
 211     return getMaxTextWidth(pain, this) - drawTextXOffset;
 212 }
 213
 214
 215 void InsetText::draw(BufferView * bv, LyXFont const & f,
 216                      int baseline, float & x, bool cleared) const
 217 {
 218     Painter & pain = bv->painter();
 219
 220     if (!cleared && ((need_update==FULL) || (top_x!=int(x)) ||
 221                      (top_baseline!=baseline))) {
 222 #if 0
 223             // && locked && ((need_update==FULL) || (top_x!=int(x)) ||
 224             //    (top_baseline!=baseline))) {
 225         need_update = NONE;
 226         top_x = int(x);
 227         top_baseline = baseline;
 228         locked = false;
 229         bv->updateInset(const_cast<InsetText *>(this), false);
 230         locked = true;
 231         if (drawLockedFrame)
 232                 pain.rectangle(top_x, baseline - ascent(pain, f),
 233                                width(pain, f), ascent(pain,f)+descent(pain, f),
 234                                frame_color);
 235         return;
 236 #else
 237         pain.fillRectangle(top_x+drawTextXOffset, top_y, last_width,
 238                            last_height);
 239         need_update = FULL;
 240 #endif
 241     }
 242
 243     if (!cleared && (need_update == NONE))
 244         return;
 245
 246     xpos = x;
 247     UpdatableInset::draw(bv, f, baseline, x, cleared);
 248
 249     top_baseline = baseline;
 250     top_x = int(x);
 251     top_y = baseline - ascent(pain, f);
 252     last_width = width(pain, f);
 253     last_height = ascent(pain, f) + descent(pain, f);
 254
 255     if (the_locking_inset && (cpos(bv) == inset_pos)) {
 256         inset_x = cx(bv) - top_x + drawTextXOffset;
 257         inset_y = cy(bv) + drawTextYOffset;
 258     }
 259     if (need_update == CURSOR) {
 260         x += width(pain, f);
 261         need_update = NONE;
 262         return;
 263     }
 264     x += TEXT_TO_INSET_OFFSET; // place for border
 265     long int y = 0;
 266     Row * row = TEXT(bv)->GetRowNearY(y);
 267     y += baseline - row->ascent_of_text() + 1;
 268     if (cleared || !locked || (need_update == FULL)) {
 269         while (row != 0) {
 270             TEXT(bv)->GetVisibleRow(bv, y, x, row, y);
 271             y += row->height();
 272             row = row->next();
 273         }
 274     } else if (need_update == SELECTION) {
 275         bv->screen()->ToggleToggle(getLyXText(bv), y, x);
 276     } else {
 277         locked = false;
 278         bv->screen()->Update(TEXT(bv), y, x);
 279         locked = true;
 280     }
 281     TEXT(bv)->refresh_y = 0;
 282     TEXT(bv)->status = LyXText::UNCHANGED;
 283     if (drawLockedFrame && locked) {
 284             pain.rectangle(top_x, baseline - ascent(pain, f), width(pain, f),
 285                            ascent(pain,f) + descent(pain, f), frame_color);
 286     } else {
 287             pain.rectangle(top_x, baseline - ascent(pain, f), width(pain, f),
 288                            ascent(pain,f) + descent(pain, f),
 289                            LColor::background);
 290     }
 291     x += width(pain, f) - TEXT_TO_INSET_OFFSET;
 292     need_update = NONE;
 293 }
 294
 295
 296 void InsetText::update(BufferView * bv, LyXFont const & font, bool dodraw)
 297 {
 298     if (the_locking_inset)
 299         the_locking_inset->update(bv, font, dodraw);
 300     if (need_update == INIT) {
 301         deleteLyXText(bv);
 302         need_update = FULL;
 303     }
 304     if (dodraw && (need_update != CURSOR))
 305             need_update = FULL;
 306
 307     TEXT(bv)->FullRebreak(bv);
 308
 309     long int y_temp = 0;
 310     Row * row = TEXT(bv)->GetRowNearY(y_temp);
 311     insetAscent = row->ascent_of_text() + TEXT_TO_INSET_OFFSET;
 312     insetDescent = TEXT(bv)->height - row->ascent_of_text() +
 313         TEXT_TO_INSET_OFFSET;
 314     insetWidth = max(textWidth(bv->painter()),
 315                      static_cast<int>(TEXT(bv)->width)) +
 316         (2 * TEXT_TO_INSET_OFFSET);
 317 }
 318
 319
 320 char const * InsetText::EditMessage() const
 321 {
 322     return _("Opened Text Inset");
 323 }
 324
 325
 326 void InsetText::Edit(BufferView * bv, int x, int y, unsigned int button)
 327 {
 328 //    par->SetInsetOwner(this);
 329     UpdatableInset::Edit(bv, x, y, button);
 330
 331     if (!bv->lockInset(this)) {
 332         lyxerr[Debug::INSETS] << "Cannot lock inset" << endl;
 333         return;
 334     }
 335     locked = true;
 336     the_locking_inset = 0;
 337     inset_pos = inset_x = inset_y = 0;
 338 #warning Fix cursor setting here!!! (Jug)
 339     TEXT(bv)->SetCursor(bv, par, 0);
 340 //    setPos(bv->painter(), x, y);
 341     checkAndActivateInset(bv, x, y, button);
 342 //    selection_start_cursor = selection_end_cursor = cursor;
 343     TEXT(bv)->sel_cursor = TEXT(bv)->cursor;
 344     bv->text->FinishUndo();
 345     UpdateLocal(bv, FULL, false);
 346 }
 347
 348
 349 void InsetText::InsetUnlock(BufferView * bv)
 350 {
 351     if (the_locking_inset) {
 352         the_locking_inset->InsetUnlock(bv);
 353         the_locking_inset = 0;
 354     }
 355     HideInsetCursor(bv);
 356     no_selection = false;
 357     locked = false;
 358     TEXT(bv)->selection = 0;
 359     UpdateLocal(bv, CURSOR_PAR, false);
 360     bv->owner()->getToolbar()->combox->select(bv->text->cursor.par()->GetLayout()+1);
 361 }
 362
 363
 364 bool InsetText::LockInsetInInset(BufferView * bv, UpdatableInset * inset)
 365 {
 366     lyxerr[Debug::INSETS] << "InsetText::LockInsetInInset(" << inset << "): ";
 367     if (!inset)
 368         return false;
 369     if (inset == cpar(bv)->GetInset(cpos(bv))) {
 370         lyxerr[Debug::INSETS] << "OK" << endl;
 371         the_locking_inset = inset;
 372 //      resetPos(bv->painter());
 373         inset_x = cx(bv) - top_x + drawTextXOffset;
 374         inset_y = cy(bv) + drawTextYOffset;
 375         inset_pos = cpos(bv);
 376         return true;
 377     } else if (the_locking_inset && (the_locking_inset == inset)) {
 378         if (cpos(bv) == inset_pos) {
 379             lyxerr[Debug::INSETS] << "OK" << endl;
 380 //          resetPos(bv->painter());
 381             inset_x = cx(bv) - top_x + drawTextXOffset;
 382             inset_y = cy(bv) + drawTextYOffset;
 383         } else {
 384             lyxerr[Debug::INSETS] << "cursor.pos != inset_pos" << endl;
 385         }
 386     } else if (the_locking_inset) {
 387         lyxerr[Debug::INSETS] << "MAYBE" << endl;
 388         return the_locking_inset->LockInsetInInset(bv, inset);
 389     }
 390     lyxerr[Debug::INSETS] << "NOT OK" << endl;
 391     return false;
 392 }
 393
 394
 395 bool InsetText::UnlockInsetInInset(BufferView * bv, UpdatableInset * inset,
 396                                    bool lr)
 397 {
 398     if (!the_locking_inset)
 399         return false;
 400     if (the_locking_inset == inset) {
 401         the_locking_inset->InsetUnlock(bv);
 402         TEXT(bv)->UpdateInset(bv, inset);
 403         the_locking_inset = 0;
 404         if (lr)
 405             moveRight(bv, false);
 406         UpdateLocal(bv, FULL, false);
 407         return true;
 408     }
 409     return the_locking_inset->UnlockInsetInInset(bv, inset, lr);
 410 }
 411
 412
 413 bool InsetText::UpdateInsetInInset(BufferView * bv, Inset * inset)
 414 {
 415     if (!the_locking_inset)
 416         return false;
 417     if (the_locking_inset != inset)
 418         return the_locking_inset->UpdateInsetInInset(bv, inset);
 419 //    UpdateLocal(bv, FULL, false);
 420     TEXT(bv)->UpdateInset(bv, inset);
 421     if (cpos(bv) == inset_pos) {
 422         inset_x = cx(bv) - top_x + drawTextXOffset;
 423         inset_y = cy(bv) + drawTextYOffset;
 424     }
 425     return true;
 426 }
 427
 428
 429 void InsetText::InsetButtonPress(BufferView * bv, int x, int y, int button)
 430 {
 431     if (TEXT(bv)->selection) {
 432         TEXT(bv)->selection = 0;
 433         UpdateLocal(bv, FULL, false);
 434     }
 435     no_selection = false;
 436     TEXT(bv)->SetCursorFromCoordinates(bv, x, y+TEXT(bv)->first);
 437     if (the_locking_inset) {
 438         UpdatableInset * inset = 0;
 439         if (cpar(bv)->GetChar(cpos(bv)) == LyXParagraph::META_INSET)
 440             inset = static_cast<UpdatableInset*>(cpar(bv)->GetInset(cpos(bv)));
 441         if (the_locking_inset == inset) {
 442             the_locking_inset->InsetButtonPress(bv,x-inset_x,y-inset_y,button);
 443             return;
 444         } else if (inset) {
 445             // otherwise unlock the_locking_inset and lock the new inset
 446             the_locking_inset->InsetUnlock(bv);
 447             inset_x = cx(bv) - top_x + drawTextXOffset;
 448             inset_y = cy(bv) + drawTextYOffset;
 449             inset->InsetButtonPress(bv, x - inset_x, y - inset_y, button);
 450             inset->Edit(bv, x - inset_x, y - inset_y, button);
 451             UpdateLocal(bv, FULL, false);
 452             return;
 453         }
 454         // otherwise only unlock the_locking_inset
 455         the_locking_inset->InsetUnlock(bv);
 456         the_locking_inset = 0;
 457     }
 458     if (bv->the_locking_inset) {
 459         if ((cpar(bv)->GetChar(cpos(bv)) == LyXParagraph::META_INSET) &&
 460             cpar(bv)->GetInset(cpos(bv)) &&
 461             (cpar(bv)->GetInset(cpos(bv))->Editable() == Inset::HIGHLY_EDITABLE)) {
 462             UpdatableInset * inset =
 463                 static_cast<UpdatableInset*>(cpar(bv)->GetInset(cpos(bv)));
 464             inset_x = cx(bv) - top_x + drawTextXOffset;
 465             inset_y = cy(bv) + drawTextYOffset;
 466             inset->InsetButtonPress(bv, x - inset_x, y - inset_y, button);
 467             inset->Edit(bv, x - inset_x, y - inset_y, 0);
 468             UpdateLocal(bv, FULL, false);
 469         }
 470     }
 471 //    selection_start_cursor = selection_end_cursor = cursor;
 472 }
 473
 474
 475 void InsetText::InsetButtonRelease(BufferView * bv, int x, int y, int button)
 476 {
 477     UpdatableInset * inset = 0;
 478
 479     if (the_locking_inset) {
 480             the_locking_inset->InsetButtonRelease(bv, x-inset_x, y-inset_y,button);
 481     } else {
 482         if (cpar(bv)->GetChar(cpos(bv)) == LyXParagraph::META_INSET) {
 483             inset = static_cast<UpdatableInset*>(cpar(bv)->GetInset(cpos(bv)));
 484             if (inset->Editable() == Inset::HIGHLY_EDITABLE) {
 485                 inset->InsetButtonRelease(bv, x - inset_x, y - inset_y,button);
 486             } else {
 487                 inset_x = cx(bv) - top_x + drawTextXOffset;
 488                 inset_y = cy(bv) + drawTextYOffset;
 489                 inset->InsetButtonRelease(bv, x - inset_x, y - inset_y,button);
 490                 inset->Edit(bv, x - inset_x, y - inset_y, button);
 491             }
 492         }
 493     }
 494     no_selection = false;
 495 }
 496
 497
 498 void InsetText::InsetMotionNotify(BufferView * bv, int x, int y, int state)
 499 {
 500     if (the_locking_inset) {
 501         the_locking_inset->InsetMotionNotify(bv, x - inset_x,
 502                                              y - inset_y,state);
 503         return;
 504     }
 505 #warning REDO this (Jug)
 506     if (!no_selection) {
 507 //      LyXCursor old = selection_end_cursor;
 508         HideInsetCursor(bv);
 509 //      setPos(bv->painter(), x, y);
 510 //      selection_end_cursor = cursor;
 511 //      if (old != selection_end_cursor)
 512 //          UpdateLocal(bv, false, false);
 513         ShowInsetCursor(bv);
 514     }
 515     no_selection = false;
 516 }
 517
 518
 519 void InsetText::InsetKeyPress(XKeyEvent * xke)
 520 {
 521     if (the_locking_inset) {
 522         the_locking_inset->InsetKeyPress(xke);
 523         return;
 524     }
 525 }
 526
 527
 528 UpdatableInset::RESULT
 529 InsetText::LocalDispatch(BufferView * bv,
 530                          int action, string const & arg)
 531 {
 532     no_selection = false;
 533     UpdatableInset::RESULT
 534         result= UpdatableInset::LocalDispatch(bv, action, arg);
 535     if (result != UNDISPATCHED) {
 536 //      resetPos(bv->painter());
 537         return DISPATCHED;
 538     }
 539
 540     result=DISPATCHED;
 541     if ((action < 0) && arg.empty())
 542         return FINISHED;
 543
 544     if (the_locking_inset) {
 545         result = the_locking_inset->LocalDispatch(bv, action, arg);
 546         if (result == DISPATCHED_NOUPDATE)
 547             return result;
 548         else if (result == DISPATCHED) {
 549             UpdateLocal(bv, CURSOR_PAR, false);
 550             return result;
 551         } else if (result == FINISHED) {
 552             switch(action) {
 553             case -1:
 554             case LFUN_RIGHT:
 555                 moveRight(bv, false);
 556                 break;
 557             case LFUN_DOWN:
 558                 moveDown(bv);
 559                 break;
 560             }
 561             the_locking_inset = 0;
 562             return DISPATCHED;
 563         }
 564     }
 565     HideInsetCursor(bv);
 566     switch (action) {
 567         // Normal chars
 568     case -1:
 569         if (bv->buffer()->isReadonly()) {
 570             LyXBell();
 571 //          setErrorMessage(N_("Document is read only"));
 572             break;
 573         }
 574         if (!arg.empty()) {
 575             /* Automatically delete the currently selected
 576              * text and replace it with what is being
 577              * typed in now. Depends on lyxrc settings
 578              * "auto_region_delete", which defaults to
 579              * true (on). */
 580
 581             bv->text->SetUndo(bv->buffer(), Undo::INSERT,
 582                               bv->text->cursor.par()->ParFromPos(bv->text->cursor.pos())->previous,
 583                               bv->text->cursor.par()->ParFromPos(bv->text->cursor.pos())->next);
 584             if (lyxrc.auto_region_delete) {
 585                 if (TEXT(bv)->selection){
 586                     TEXT(bv)->CutSelection(bv, false);
 587                 }
 588             }
 589             TEXT(bv)->ClearSelection();
 590             for (string::size_type i = 0; i < arg.length(); ++i) {
 591                 bv->owner()->getIntl()->getTrans()->TranslateAndInsert(arg[i], TEXT(bv));
 592             }
 593         }
 594         UpdateLocal(bv, CURSOR_PAR, true);
 595         break;
 596         // --- Cursor Movements ---------------------------------------------
 597     case LFUN_RIGHTSEL:
 598         bv->text->FinishUndo();
 599         moveRight(bv, false);
 600         TEXT(bv)->SetSelection();
 601         UpdateLocal(bv, SELECTION, false);
 602         break;
 603     case LFUN_RIGHT:
 604         bv->text->FinishUndo();
 605         result = moveRight(bv);
 606         TEXT(bv)->selection = 0;
 607         TEXT(bv)->sel_cursor = TEXT(bv)->cursor;
 608         UpdateLocal(bv, CURSOR, false);
 609         break;
 610     case LFUN_LEFTSEL:
 611         bv->text->FinishUndo();
 612         moveLeft(bv, false);
 613         TEXT(bv)->SetSelection();
 614         UpdateLocal(bv, SELECTION, false);
 615         break;
 616     case LFUN_LEFT:
 617         bv->text->FinishUndo();
 618         result= moveLeft(bv);
 619         TEXT(bv)->selection = 0;
 620         TEXT(bv)->sel_cursor = TEXT(bv)->cursor;
 621         UpdateLocal(bv, CURSOR, false);
 622         break;
 623     case LFUN_DOWNSEL:
 624         bv->text->FinishUndo();
 625         moveDown(bv);
 626         TEXT(bv)->SetSelection();
 627         UpdateLocal(bv, SELECTION, false);
 628         break;
 629     case LFUN_DOWN:
 630         bv->text->FinishUndo();
 631         result = moveDown(bv);
 632         TEXT(bv)->selection = 0;
 633         TEXT(bv)->sel_cursor = TEXT(bv)->cursor;
 634         UpdateLocal(bv, CURSOR, false);
 635         break;
 636     case LFUN_UPSEL:
 637         bv->text->FinishUndo();
 638         moveUp(bv);
 639         TEXT(bv)->SetSelection();
 640         UpdateLocal(bv, SELECTION, false);
 641         break;
 642     case LFUN_UP:
 643         bv->text->FinishUndo();
 644         result = moveUp(bv);
 645         TEXT(bv)->selection = 0;
 646         TEXT(bv)->sel_cursor = TEXT(bv)->cursor;
 647         UpdateLocal(bv, CURSOR, false);
 648         break;
 649     case LFUN_HOME:
 650         bv->text->FinishUndo();
 651         TEXT(bv)->CursorHome(bv);
 652         TEXT(bv)->selection = 0;
 653         TEXT(bv)->sel_cursor = TEXT(bv)->cursor;
 654         UpdateLocal(bv, CURSOR, false);
 655         break;
 656     case LFUN_END:
 657         TEXT(bv)->CursorEnd(bv);
 658         TEXT(bv)->selection = 0;
 659         TEXT(bv)->sel_cursor = TEXT(bv)->cursor;
 660         UpdateLocal(bv, CURSOR, false);
 661         break;
 662     case LFUN_BACKSPACE:
 663         bv->text->SetUndo(bv->buffer(), Undo::DELETE,
 664           bv->text->cursor.par()->ParFromPos(bv->text->cursor.pos())->previous,
 665           bv->text->cursor.par()->ParFromPos(bv->text->cursor.pos())->next);
 666         TEXT(bv)->Backspace(bv);
 667         UpdateLocal(bv, CURSOR_PAR, true);
 668         break;
 669     case LFUN_DELETE:
 670         bv->text->SetUndo(bv->buffer(), Undo::DELETE,
 671           bv->text->cursor.par()->ParFromPos(bv->text->cursor.pos())->previous,
 672           bv->text->cursor.par()->ParFromPos(bv->text->cursor.pos())->next);
 673         TEXT(bv)->Delete(bv);
 674         UpdateLocal(bv, CURSOR_PAR, true);
 675         break;
 676     case LFUN_CUT:
 677         bv->text->SetUndo(bv->buffer(), Undo::DELETE,
 678           bv->text->cursor.par()->ParFromPos(bv->text->cursor.pos())->previous,
 679           bv->text->cursor.par()->ParFromPos(bv->text->cursor.pos())->next);
 680         TEXT(bv)->CutSelection(bv);
 681         UpdateLocal(bv, CURSOR_PAR, true);
 682         break;
 683     case LFUN_COPY:
 684         bv->text->FinishUndo();
 685         TEXT(bv)->CopySelection(bv);
 686         UpdateLocal(bv, CURSOR_PAR, false);
 687         break;
 688     case LFUN_PASTE:
 689         bv->text->SetUndo(bv->buffer(), Undo::INSERT,
 690           bv->text->cursor.par()->ParFromPos(bv->text->cursor.pos())->previous,
 691           bv->text->cursor.par()->ParFromPos(bv->text->cursor.pos())->next);
 692         TEXT(bv)->PasteSelection(bv);
 693         UpdateLocal(bv, CURSOR_PAR, true);
 694         break;
 695     case LFUN_BREAKPARAGRAPH:
 696         if (!autoBreakRows)
 697             return DISPATCHED;
 698         TEXT(bv)->BreakParagraph(bv, 0);
 699         UpdateLocal(bv, CURSOR_PAR, true);
 700         break;
 701     case LFUN_BREAKLINE:
 702         if (!autoBreakRows)
 703             return DISPATCHED;
 704         bv->text->SetUndo(bv->buffer(), Undo::INSERT,
 705             bv->text->cursor.par()->ParFromPos(bv->text->cursor.pos())->previous,
 706             bv->text->cursor.par()->ParFromPos(bv->text->cursor.pos())->next);
 707         TEXT(bv)->InsertChar(bv, LyXParagraph::META_NEWLINE);
 708         UpdateLocal(bv, CURSOR_PAR, true);
 709         break;
 710     case LFUN_LAYOUT:
 711     {
 712       static LyXTextClass::size_type cur_layout = cpar(bv)->layout;
 713
 714         // Derive layout number from given argument (string)
 715         // and current buffer's textclass (number). */
 716         LyXTextClassList::ClassList::size_type tclass =
 717             bv->buffer()->params.textclass;
 718         std::pair <bool, LyXTextClass::size_type> layout =
 719             textclasslist.NumberOfLayout(tclass, arg);
 720
 721         // If the entry is obsolete, use the new one instead.
 722         if (layout.first) {
 723             string obs = textclasslist.Style(tclass,layout.second).
 724                 obsoleted_by();
 725             if (!obs.empty())
 726                 layout = textclasslist.NumberOfLayout(tclass, obs);
 727         }
 728
 729         // see if we found the layout number:
 730         if (!layout.first) {
 731             string msg = string(N_("Layout ")) + arg + N_(" not known");
 732
 733             bv->owner()->getMiniBuffer()->Set(msg);
 734             break;
 735         }
 736
 737         if (cur_layout != layout.second) {
 738             cur_layout = layout.second;
 739             TEXT(bv)->SetLayout(bv, layout.second);
 740             bv->owner()->getToolbar()->combox->select(cpar(bv)->GetLayout()+1);
 741             UpdateLocal(bv, CURSOR_PAR, true);
 742         }
 743     }
 744     break;
 745     default:
 746         result = UNDISPATCHED;
 747         break;
 748     }
 749     if (result != FINISHED) {
 750         ShowInsetCursor(bv);
 751     } else
 752         bv->unlockInset(this);
 753     return result;
 754 }
 755
 756
 757 int InsetText::Latex(Buffer const * buf, ostream & os, bool, bool) const
 758 {
 759     TexRow texrow;
 760     buf->latexParagraphs(os, par, 0, texrow);
 761     return texrow.rows();
 762 }
 763
 764
 765 void InsetText::Validate(LaTeXFeatures & features) const
 766 {
 767     LyXParagraph * p = par;
 768     while(p) {
 769         p->validate(features);
 770         p = p->next;
 771     }
 772 }
 773
 774
 775 int InsetText::BeginningOfMainBody(Buffer const * buf, LyXParagraph * p) const
 776 {
 777     if (textclasslist.Style(buf->params.textclass,
 778                             p->GetLayout()).labeltype != LABEL_MANUAL)
 779         return 0;
 780     else
 781         return p->BeginningOfMainBody();
 782 }
 783
 784
 785 void InsetText::GetCursorPos(BufferView * bv, int & x, int & y) const
 786 {
 787     x = cx(bv);
 788     y = cy(bv);
 789 }
 790
 791
 792 int InsetText::InsetInInsetY()
 793 {
 794     if (!the_locking_inset)
 795         return 0;
 796
 797     return (inset_y + the_locking_inset->InsetInInsetY());
 798 }
 799
 800
 801 void InsetText::ToggleInsetCursor(BufferView * bv)
 802 {
 803     if (the_locking_inset) {
 804         the_locking_inset->ToggleInsetCursor(bv);
 805         return;
 806     }
 807
 808     LyXFont font = TEXT(bv)->GetFont(bv->buffer(), cpar(bv), cpos(bv));
 809
 810     int asc = lyxfont::maxAscent(font);
 811     int desc = lyxfont::maxDescent(font);
 812
 813     if (cursor_visible)
 814         bv->hideLockedInsetCursor();
 815     else
 816         bv->showLockedInsetCursor(cx(bv), cy(bv),
 817                                   asc, desc);
 818     cursor_visible = !cursor_visible;
 819 }
 820
 821
 822 void InsetText::ShowInsetCursor(BufferView * bv)
 823 {
 824     if (the_locking_inset) {
 825         the_locking_inset->ShowInsetCursor(bv);
 826         return;
 827     }
 828     if (!cursor_visible) {
 829         LyXFont font = TEXT(bv)->GetFont(bv->buffer(), cpar(bv), cpos(bv));
 830
 831         int asc = lyxfont::maxAscent(font);
 832         int desc = lyxfont::maxDescent(font);
 833
 834         bv->fitLockedInsetCursor(cx(bv), cy(bv), asc, desc);
 835         bv->showLockedInsetCursor(cx(bv), cy(bv), asc, desc);
 836         cursor_visible = true;
 837     }
 838 }
 839
 840
 841 void InsetText::HideInsetCursor(BufferView * bv)
 842 {
 843     if (cursor_visible) {
 844         bv->hideLockedInsetCursor();
 845         cursor_visible = false;
 846     }
 847     if (the_locking_inset)
 848         the_locking_inset->HideInsetCursor(bv);
 849 }
 850
 851
 852 UpdatableInset::RESULT
 853 InsetText::moveRight(BufferView * bv, bool activate_inset)
 854 {
 855     if (!cpar(bv)->next && (cpos(bv) >= cpar(bv)->Last()))
 856         return FINISHED;
 857     if (activate_inset && checkAndActivateInset(bv)) {
 858         return DISPATCHED;
 859     }
 860     TEXT(bv)->CursorRight(bv);
 861 //    real_current_font = current_font = GetFont(bv->buffer(), cpar(bv), cpos(bv));
 862     return DISPATCHED_NOUPDATE;
 863 }
 864
 865
 866 UpdatableInset::RESULT
 867 InsetText::moveLeft(BufferView * bv, bool activate_inset)
 868 {
 869     if (!cpar(bv)->previous && (cpos(bv) <= 0))
 870         return FINISHED;
 871     TEXT(bv)->CursorLeft(bv);
 872     if (activate_inset)
 873         if (checkAndActivateInset(bv, -1, -1))
 874             return DISPATCHED;
 875     return DISPATCHED_NOUPDATE;
 876 }
 877
 878
 879 UpdatableInset::RESULT
 880 InsetText::moveUp(BufferView * bv)
 881 {
 882     if (!crow(bv)->previous())
 883         return FINISHED;
 884     TEXT(bv)->CursorUp(bv);
 885     return DISPATCHED_NOUPDATE;
 886 }
 887
 888
 889 UpdatableInset::RESULT
 890 InsetText::moveDown(BufferView * bv)
 891 {
 892     if (!crow(bv)->next())
 893         return FINISHED;
 894     TEXT(bv)->CursorDown(bv);
 895     return DISPATCHED_NOUPDATE;
 896 }
 897
 898
 899 bool InsetText::InsertInset(BufferView * bv, Inset * inset)
 900 {
 901     if (the_locking_inset) {
 902         if (the_locking_inset->InsertInsetAllowed(inset))
 903             return the_locking_inset->InsertInset(bv, inset);
 904         return false;
 905     }
 906     bv->text->SetUndo(bv->buffer(), Undo::INSERT,
 907               bv->text->cursor.par()->ParFromPos(bv->text->cursor.pos())->previous,
 908               bv->text->cursor.par()->ParFromPos(bv->text->cursor.pos())->next);
 909     if (inset->Editable() == Inset::IS_EDITABLE) {
 910         UpdatableInset * i = static_cast<UpdatableInset *>(inset);
 911         i->setOwner(static_cast<UpdatableInset *>(this));
 912     }
 913     cpar(bv)->InsertChar(cpos(bv), LyXParagraph::META_INSET);
 914     cpar(bv)->InsertInset(cpos(bv), inset);
 915     TEXT(bv)->selection = 0;
 916     UpdateLocal(bv, CURSOR_PAR, true);
 917     static_cast<UpdatableInset*>(inset)->Edit(bv, 0, 0, 0);
 918     return true;
 919 }
 920
 921
 922 UpdatableInset * InsetText::GetLockingInset()
 923 {
 924     return the_locking_inset ? the_locking_inset->GetLockingInset() : this;
 925 }
 926
 927
 928 UpdatableInset * InsetText::GetFirstLockingInsetOfType(Inset::Code c)
 929 {
 930     if (c == LyxCode())
 931         return this;
 932     if (the_locking_inset)
 933         return the_locking_inset->GetFirstLockingInsetOfType(c);
 934     return 0;
 935 }
 936
 937
 938 void InsetText::SetFont(BufferView * bv, LyXFont const & font, bool toggleall)
 939 {
 940     TEXT(bv)->SetFont(bv, font, toggleall);
 941 }
 942
 943
 944 void InsetText::UpdateLocal(BufferView * bv, UpdateCodes what, bool mark_dirty)
 945 {
 946     if (TEXT(bv)->status == LyXText::NEED_MORE_REFRESH)
 947         need_update = FULL;
 948     else
 949         need_update = what;
 950     if ((need_update != CURSOR) || (TEXT(bv)->status != LyXText::UNCHANGED))
 951             bv->updateInset(this, mark_dirty);
 952     if (old_par != cpar(bv)) {
 953             bv->owner()->getToolbar()->combox->select(cpar(bv)->GetLayout()+1);
 954             old_par = cpar(bv);
 955     }
 956 }
 957
 958
 959 bool InsetText::checkAndActivateInset(BufferView * bv, int x, int y,
 960                                       int button)
 961 {
 962     if (cpar(bv)->GetChar(cpos(bv)) == LyXParagraph::META_INSET) {
 963         UpdatableInset * inset =
 964             static_cast<UpdatableInset*>(cpar(bv)->GetInset(cpos(bv)));
 965         LyXFont font = TEXT(bv)->GetFont(bv->buffer(), cpar(bv), cpos(bv));
 966         if (x < 0)
 967             x = inset->width(bv->painter(), font);
 968         if (y < 0)
 969             y = inset->descent(bv->painter(), font);
 970         inset_x = cx(bv) - top_x + drawTextXOffset;
 971         inset_y = cy(bv) + drawTextYOffset;
 972         inset->Edit(bv, x - inset_x, y - inset_y, button);
 973         if (!the_locking_inset)
 974             return false;
 975         UpdateLocal(bv, CURSOR_PAR, false);
 976         return true;
 977     }
 978     return false;
 979 }
 980
 981
 982 int InsetText::getMaxTextWidth(Painter & pain, UpdatableInset const * inset) const
 983 {
 984     return getMaxWidth(pain, inset) - (2 * TEXT_TO_INSET_OFFSET);
 985 }
 986
 987 void InsetText::SetParagraphData(LyXParagraph *p)
 988 {
 989     LyXParagraph * np;
 990
 991     if (par) {
 992         np = par->next;
 993         delete par;
 994         while(np) {
 995             par = np;
 996             np = np->next;
 997             delete par;
 998         }
 999     }
1000     par = p->Clone();
1001     par->SetInsetOwner(this);
1002     np = par;
1003     while(p->next) {
1004         p = p->next;
1005         np->next = p->Clone();
1006         np->next->previous = np;
1007         np = np->next;
1008         np->SetInsetOwner(this);
1009     }
1010     need_update = INIT;
1011 }
1012
1013 void InsetText::SetAutoBreakRows(bool flag)
1014 {
1015     if (flag != autoBreakRows) {
1016         autoBreakRows = flag;
1017         need_update = FULL;
1018     }
1019 }
1020
1021 void InsetText::SetDrawLockedFrame(bool flag)
1022 {
1023     if (flag != drawLockedFrame)
1024         drawLockedFrame = flag;
1025 }
1026
1027 void InsetText::SetFrameColor(LColor::color col)
1028 {
1029     if (frame_color != col)
1030         frame_color = col;
1031 }
1032
1033 LyXFont InsetText::GetDrawFont(BufferView * bv, LyXParagraph * p, int pos) const
1034 {
1035     return TEXT(bv)->GetFont(bv->buffer(), p, pos);
1036 }
1037
1038 int InsetText::cx(BufferView * bv) const
1039 {
1040     return TEXT(bv)->cursor.x() + top_x + 1;
1041 }
1042
1043 int InsetText::cy(BufferView * bv) const
1044 {
1045     long int y_dummy = 0;
1046     Row * tmprow = TEXT(bv)->GetRowNearY(y_dummy);
1047     return TEXT(bv)->cursor.y() - tmprow->baseline();
1048 }
1049
1050 int InsetText::cpos(BufferView * bv) const
1051 {
1052     return TEXT(bv)->cursor.pos();
1053 }
1054
1055 LyXParagraph * InsetText::cpar(BufferView * bv) const
1056 {
1057     return TEXT(bv)->cursor.par();
1058 }
1059
1060 Row * InsetText::crow(BufferView * bv) const
1061 {
1062     return TEXT(bv)->cursor.row();
1063 }
1064
1065 LyXText * InsetText::getLyXText(BufferView * bv) const
1066 {
1067     if (cache.find(bv) != cache.end())
1068         return cache[bv];
1069     LyXText *lt = new LyXText(const_cast<InsetText *>(this));
1070     lt->init(bv);
1071     cache[bv] = lt;
1072     return lt;
1073 }
1074
1075 void InsetText::deleteLyXText(BufferView * bv)
1076 {
1077     cache.erase(bv);
1078 }