src/BufferView.C

   1 // -*- C++ -*-
   2 /* This file is part of
   3  * ======================================================
   4  *
   5  *           LyX, The Document Processor
   6  *
   7  *           Copyright 1995 Matthias Ettrich
   8  *           Copyright 1995-2000 The LyX Team.
   9  *
  10  * ====================================================== */
  11
  12 #include <config.h>
  13
  14 #include <algorithm>
  15
  16 #include <cstdlib>
  17 #include <csignal>
  18
  19 #include <unistd.h>
  20 #include <sys/wait.h>
  21
  22 #include "support/lstrings.h"
  23
  24 #ifdef __GNUG__
  25 #pragma implementation
  26 #endif
  27
  28 #include "commandtags.h"
  29 #include "BufferView.h"
  30 #include "bufferlist.h"
  31 #include "LyXView.h"
  32 #include "lyxfunc.h"
  33 #include "insets/lyxinset.h"
  34 #include "insets/insetbib.h"
  35 #include "minibuffer.h"
  36 #include "lyxscreen.h"
  37 #include "menus.h"
  38
  39 #include "debug.h"
  40 #include "lyx_gui_misc.h"
  41 #include "BackStack.h"
  42 #include "lyxtext.h"
  43 #include "lyx_cb.h"
  44 #include "gettext.h"
  45 #include "layout.h"
  46 #include "TextCache.h"
  47 #include "intl.h"
  48 #include "lyxrc.h"
  49 #include "lyxrow.h"
  50 #include "WorkArea.h"
  51 #include "font.h"
  52 #include "BufferView_pimpl.h"
  53
  54 using std::pair;
  55 using std::for_each;
  56 using std::find_if;
  57 using std::endl;
  58
  59 extern BufferList bufferlist;
  60
  61 void sigchldhandler(pid_t pid, int * status);
  62
  63 extern void SetXtermCursor(Window win);
  64 extern bool input_prohibited;
  65 extern bool selection_possible;
  66 extern char ascii_type;
  67 extern void MenuPasteSelection(char at);
  68 extern void FreeUpdateTimer();
  69
  70 BufferView::BufferView(LyXView * o, int xpos, int ypos,
  71                        int width, int height)
  72         : pimpl_(new Pimpl(this, o, xpos, ypos, width, height))
  73 {
  74         text = 0;
  75         the_locking_inset = 0;
  76         inset_slept = false;
  77 }
  78
  79
  80 BufferView::~BufferView()
  81 {
  82         delete text;
  83         delete pimpl_;
  84 }
  85
  86
  87 Buffer * BufferView::buffer() const
  88 {
  89         return pimpl_->buffer_;
  90 }
  91
  92
  93 LyXView * BufferView::owner() const
  94 {
  95         return pimpl_->owner_;
  96 }
  97
  98
  99 void BufferView::pushIntoUpdateList(Inset * i)
 100 {
 101         pimpl_->updatelist.push(i);
 102 }
 103
 104
 105 Painter & BufferView::painter()
 106 {
 107         return pimpl_->workarea->getPainter();
 108 }
 109
 110
 111 void BufferView::buffer(Buffer * b)
 112 {
 113         lyxerr[Debug::INFO] << "Setting buffer in BufferView ("
 114                             << b << ")" << endl;
 115         if (pimpl_->buffer_) {
 116                 insetSleep();
 117                 pimpl_->buffer_->delUser(this);
 118
 119                 // Put the old text into the TextCache, but
 120                 // only if the buffer is still loaded.
 121                 // Also set the owner of the test to 0
 122                 text->owner(0);
 123                 textcache.add(text);
 124                 if (lyxerr.debugging())
 125                         textcache.show(lyxerr, "BufferView::buffer");
 126
 127                 text = 0;
 128         }
 129
 130         // Set current buffer
 131         pimpl_->buffer_ = b;
 132
 133         if (bufferlist.getState() == BufferList::CLOSING) return;
 134
 135         // Nuke old image
 136         // screen is always deleted when the buffer is changed.
 137         delete pimpl_->screen;
 138         pimpl_->screen = 0;
 139
 140         // If we are closing the buffer, use the first buffer as current
 141         if (!pimpl_->buffer_) {
 142                 pimpl_->buffer_ = bufferlist.first();
 143         }
 144
 145         if (pimpl_->buffer_) {
 146                 lyxerr[Debug::INFO] << "Buffer addr: " << pimpl_->buffer_ << endl;
 147                 pimpl_->buffer_->addUser(this);
 148                 pimpl_->owner_->getMenus()->showMenus();
 149                 // If we don't have a text object for this, we make one
 150                 if (text == 0)
 151                         resizeCurrentBuffer();
 152                 else {
 153                         pimpl_->updateScreen();
 154                         updateScrollbar();
 155                 }
 156                 pimpl_->screen->first = pimpl_->screen->TopCursorVisible();
 157                 redraw();
 158                 updateAllVisibleBufferRelatedPopups();
 159                 insetWakeup();
 160         } else {
 161                 lyxerr[Debug::INFO] << "  No Buffer!" << endl;
 162                 pimpl_->owner_->getMenus()->hideMenus();
 163                 updateScrollbar();
 164                 pimpl_->workarea->redraw();
 165
 166                 // Also remove all remaining text's from the testcache.
 167                 // (there should not be any!) (if there is any it is a
 168                 // bug!)
 169                 if (lyxerr.debugging())
 170                         textcache.show(lyxerr, "buffer delete all");
 171                 textcache.clear();
 172         }
 173         // should update layoutchoice even if we don't have a buffer.
 174         pimpl_->owner_->updateLayoutChoice();
 175         pimpl_->owner_->getMiniBuffer()->Init();
 176         pimpl_->owner_->updateWindowTitle();
 177 }
 178
 179
 180 void BufferView::resize(int xpos, int ypos, int width, int height)
 181 {
 182         pimpl_->workarea->resize(xpos, ypos, width, height);
 183         update(3);
 184         redraw();
 185 }
 186
 187
 188 void BufferView::resize()
 189 {
 190         // This will resize the buffer. (Asger)
 191         if (pimpl_->buffer_)
 192                 resizeCurrentBuffer();
 193 }
 194
 195
 196 void BufferView::redraw()
 197 {
 198         lyxerr[Debug::INFO] << "BufferView::redraw()" << endl;
 199         pimpl_->workarea->redraw();
 200 }
 201
 202
 203 void BufferView::fitCursor()
 204 {
 205         if (pimpl_->screen) pimpl_->screen->FitCursor();
 206         updateScrollbar();
 207 }
 208
 209
 210 void BufferView::update()
 211 {
 212         if (pimpl_->screen) pimpl_->screen->Update();
 213 }
 214
 215
 216 void BufferView::updateScrollbar()
 217 {
 218         /* If the text is smaller than the working area, the scrollbar
 219          * maximum must be the working area height. No scrolling will
 220          * be possible */
 221
 222         if (!pimpl_->buffer_) {
 223                 pimpl_->workarea->setScrollbar(0, 1.0);
 224                 return;
 225         }
 226
 227         static long max2 = 0;
 228         static long height2 = 0;
 229
 230         long cbth = 0;
 231         long cbsf = 0;
 232
 233         if (text)
 234                 cbth = text->height;
 235         if (pimpl_->screen)
 236                 cbsf = pimpl_->screen->first;
 237
 238         // check if anything has changed.
 239         if (max2 == cbth &&
 240             height2 == pimpl_->workarea->height() &&
 241             pimpl_->current_scrollbar_value == cbsf)
 242                 return; // no
 243         max2 = cbth;
 244         height2 = pimpl_->workarea->height();
 245         pimpl_->current_scrollbar_value = cbsf;
 246
 247         if (cbth <= height2) { // text is smaller than screen
 248                 pimpl_->workarea->setScrollbar(0, 1.0); // right?
 249                 return;
 250         }
 251
 252         long maximum_height = pimpl_->workarea->height() * 3 / 4 + cbth;
 253         long value = cbsf;
 254
 255         // set the scrollbar
 256         double hfloat = pimpl_->workarea->height();
 257         double maxfloat = maximum_height;
 258
 259         float slider_size = 0.0;
 260         int slider_value = value;
 261
 262         pimpl_->workarea->setScrollbarBounds(0, text->height - pimpl_->workarea->height());
 263         double lineh = text->DefaultHeight();
 264         pimpl_->workarea->setScrollbarIncrements(lineh);
 265         if (maxfloat > 0.0) {
 266                 if ((hfloat / maxfloat) * float(height2) < 3)
 267                         slider_size = 3.0/float(height2);
 268                 else
 269                         slider_size = hfloat / maxfloat;
 270         } else
 271                 slider_size = hfloat;
 272
 273         pimpl_->workarea->setScrollbar(slider_value, slider_size / pimpl_->workarea->height());
 274 }
 275
 276
 277 void BufferView::redoCurrentBuffer()
 278 {
 279         lyxerr[Debug::INFO] << "BufferView::redoCurrentBuffer" << endl;
 280         if (pimpl_->buffer_ && text) {
 281                 resize();
 282                 pimpl_->owner_->updateLayoutChoice();
 283         }
 284 }
 285
 286
 287 int BufferView::resizeCurrentBuffer()
 288 {
 289         lyxerr[Debug::INFO] << "resizeCurrentBuffer" << endl;
 290
 291         LyXParagraph * par = 0;
 292         LyXParagraph * selstartpar = 0;
 293         LyXParagraph * selendpar = 0;
 294         int pos = 0;
 295         int selstartpos = 0;
 296         int selendpos = 0;
 297         int selection = 0;
 298         int mark_set = 0;
 299
 300         ProhibitInput();
 301
 302         pimpl_->owner_->getMiniBuffer()->Set(_("Formatting document..."));
 303
 304         if (text) {
 305                 par = text->cursor.par;
 306                 pos = text->cursor.pos;
 307                 selstartpar = text->sel_start_cursor.par;
 308                 selstartpos = text->sel_start_cursor.pos;
 309                 selendpar = text->sel_end_cursor.par;
 310                 selendpos = text->sel_end_cursor.pos;
 311                 selection = text->selection;
 312                 mark_set = text->mark_set;
 313                 delete text;
 314                 text = new LyXText(this, pimpl_->workarea->workWidth(), pimpl_->buffer_);
 315         } else {
 316                 // See if we have a text in TextCache that fits
 317                 // the new buffer_ with the correct width.
 318                 text = textcache.findFit(pimpl_->buffer_, pimpl_->workarea->workWidth());
 319                 if (text) {
 320                         if (lyxerr.debugging()) {
 321                                 lyxerr << "Found a LyXText that fits:\n";
 322                                 textcache.show(lyxerr, text);
 323                         }
 324                         // Set the owner of the newly found text
 325                         text->owner(this);
 326                         if (lyxerr.debugging())
 327                                 textcache.show(lyxerr, "resizeCurrentBuffer");
 328                 } else {
 329                         text = new LyXText(this, pimpl_->workarea->workWidth(), pimpl_->buffer_);
 330                 }
 331         }
 332         pimpl_->updateScreen();
 333
 334         if (par) {
 335                 text->selection = true;
 336                 /* at this point just to avoid the Delete-Empty-Paragraph
 337                  * Mechanism when setting the cursor */
 338                 text->mark_set = mark_set;
 339                 if (selection) {
 340                         text->SetCursor(selstartpar, selstartpos);
 341                         text->sel_cursor = text->cursor;
 342                         text->SetCursor(selendpar, selendpos);
 343                         text->SetSelection();
 344                         text->SetCursor(par, pos);
 345                 } else {
 346                         text->SetCursor(par, pos);
 347                         text->sel_cursor = text->cursor;
 348                         text->selection = false;
 349                 }
 350         }
 351         pimpl_->screen->first = pimpl_->screen->TopCursorVisible(); /* this will scroll the
 352                                                      * screen such that the
 353                                                      * cursor becomes
 354                                                      * visible */
 355         updateScrollbar();
 356         redraw();
 357         pimpl_->owner_->getMiniBuffer()->Init();
 358         setState();
 359         AllowInput();
 360
 361         // Now if the title form still exist kill it
 362         TimerCB(0, 0);
 363
 364         return 0;
 365 }
 366
 367
 368 void BufferView::gotoError()
 369 {
 370         if (!pimpl_->screen)
 371                 return;
 372
 373         pimpl_->screen->HideCursor();
 374         beforeChange();
 375         update(-2);
 376         LyXCursor tmp;
 377
 378         if (!text->GotoNextError()) {
 379                 if (text->cursor.pos
 380                     || text->cursor.par != text->FirstParagraph()) {
 381                         tmp = text->cursor;
 382                         text->cursor.par = text->FirstParagraph();
 383                         text->cursor.pos = 0;
 384                         if (!text->GotoNextError()) {
 385                                 text->cursor = tmp;
 386                                 pimpl_->owner_->getMiniBuffer()
 387                                         ->Set(_("No more errors"));
 388                                 LyXBell();
 389                         }
 390                 } else {
 391                         pimpl_->owner_->getMiniBuffer()->Set(_("No more errors"));
 392                         LyXBell();
 393                 }
 394         }
 395         update(0);
 396         text->sel_cursor = text->cursor;
 397 }
 398
 399
 400 extern "C" {
 401         void C_BufferView_CursorToggleCB(FL_OBJECT * ob, long buf)
 402         {
 403                 BufferView::cursorToggleCB(ob, buf);
 404         }
 405 }
 406
 407
 408 // Callback for scrollbar up button
 409 void BufferView::upCB(long time, int button)
 410 {
 411         if (pimpl_->buffer_ == 0) return;
 412
 413         switch (button) {
 414         case 3:
 415                 pimpl_->scrollUpOnePage();
 416                 break;
 417         case 2:
 418                 pimpl_->scrollDownOnePage();
 419                 break;
 420         default:
 421                 pimpl_->scrollUp(time);
 422                 break;
 423         }
 424 }
 425
 426
 427 static inline
 428 void waitForX()
 429 {
 430         XSync(fl_get_display(), 0);
 431 }
 432
 433
 434 // Callback for scrollbar slider
 435 void BufferView::scrollCB(double value)
 436 {
 437         extern bool cursor_follows_scrollbar;
 438
 439         if (pimpl_->buffer_ == 0) return;
 440
 441         pimpl_->current_scrollbar_value = long(value);
 442         if (pimpl_->current_scrollbar_value < 0)
 443                 pimpl_->current_scrollbar_value = 0;
 444
 445         if (!pimpl_->screen)
 446                 return;
 447
 448         pimpl_->screen->Draw(pimpl_->current_scrollbar_value);
 449
 450         if (cursor_follows_scrollbar) {
 451                 LyXText * vbt = text;
 452                 int height = vbt->DefaultHeight();
 453
 454                 if (vbt->cursor.y < pimpl_->screen->first + height) {
 455                         vbt->SetCursorFromCoordinates(0,
 456                                                       pimpl_->screen->first +
 457                                                       height);
 458                 } else if (vbt->cursor.y >
 459                            pimpl_->screen->first + pimpl_->workarea->height() - height) {
 460                         vbt->SetCursorFromCoordinates(0,
 461                                                       pimpl_->screen->first +
 462                                                       pimpl_->workarea->height()  -
 463                                                       height);
 464                 }
 465         }
 466         waitForX();
 467 }
 468
 469
 470 // Callback for scrollbar down button
 471 void BufferView::downCB(long time, int button)
 472 {
 473         if (pimpl_->buffer_ == 0) return;
 474
 475         switch (button) {
 476         case 2:
 477                 pimpl_->scrollUpOnePage();
 478                 break;
 479         case 3:
 480                 pimpl_->scrollDownOnePage();
 481                 break;
 482         default:
 483                 pimpl_->scrollDown(time);
 484                 break;
 485         }
 486 }
 487
 488
 489 void BufferView::workAreaMotionNotify(int x, int y, unsigned int state)
 490 {
 491         pimpl_->workAreaMotionNotify(x, y, state);
 492 }
 493
 494
 495 extern int bibitemMaxWidth(Painter &, LyXFont const &);
 496
 497
 498 ///  Single-click on work area
 499 void BufferView::workAreaButtonPress(int xpos, int ypos, unsigned int button)
 500 {
 501         pimpl_->workAreaButtonPress(xpos, ypos, button);
 502 }
 503
 504
 505 void BufferView::doubleClick(int x, int y, unsigned int button)
 506 {
 507         pimpl_->doubleClick(x, y, button);
 508 }
 509
 510
 511 void BufferView::tripleClick(int x, int y, unsigned int button)
 512 {
 513         pimpl_->tripleClick(x, y, button);
 514 }
 515
 516
 517 void BufferView::workAreaButtonRelease(int x, int y, unsigned int button)
 518 {
 519         pimpl_->workAreaButtonRelease(x, y, button);
 520 }
 521
 522
 523 void BufferView::workAreaExpose()
 524 {
 525         pimpl_->workAreaExpose();
 526 }
 527
 528
 529 // Callback for cursor timer
 530 void BufferView::cursorToggleCB(FL_OBJECT * ob, long)
 531 {
 532         BufferView * view = static_cast<BufferView*>(ob->u_vdata);
 533
 534         // Quite a nice place for asyncron Inset updating, isn't it?
 535         // Actually no! This is run even if no buffer exist... so (Lgb)
 536         if (view && !view->pimpl_->buffer_) {
 537                 goto set_timer_and_return;
 538         }
 539
 540         // NOTE:
 541         // On my quest to solve the gs render hangups I am now
 542         // disabling the SIGHUP completely, and will do a wait
 543         // now and then instead. If the guess that xforms somehow
 544         // destroys something is true, this is likely (hopefully)
 545         // to solve the problem...at least I hope so. Lgb
 546
 547         // ...Ok this seems to work...at least it does not make things
 548         // worse so far. However I still see gs processes that hangs.
 549         // I would really like to know _why_ they are hanging. Anyway
 550         // the solution without the SIGCHLD handler seems to be easier
 551         // to debug.
 552
 553         // When attaching gdb to a a running gs that hangs it shows
 554         // that it is waiting for input(?) Is it possible for us to
 555         // provide that input somehow? Or figure what it is expecing
 556         // to read?
 557
 558         // One solution is to, after some time, look if there are some
 559         // old gs processes still running and if there are: kill them
 560         // and re render.
 561
 562         // Another solution is to provide the user an option to rerender
 563         // a picture. This would, for the picture in question, check if
 564         // there is a gs running for it, if so kill it, and start a new
 565         // rendering process.
 566
 567         // these comments posted to lyx@via
 568         {
 569                 int status = 1;
 570                 int pid = waitpid(static_cast<pid_t>(0), &status, WNOHANG);
 571                 if (pid == -1) // error find out what is wrong
 572                         ; // ignore it for now.
 573                 else if (pid > 0)
 574                         sigchldhandler(pid, &status);
 575         }
 576
 577         view->pimpl_->updatelist.update(view);
 578
 579         if (view && !view->pimpl_->screen) {
 580                 goto set_timer_and_return;
 581         }
 582
 583         if (view->pimpl_->lyx_focus && view->pimpl_->work_area_focus) {
 584                 if (!view->the_locking_inset) {
 585                         view->pimpl_->screen->CursorToggle();
 586                 } else {
 587                         view->the_locking_inset->
 588                                 ToggleInsetCursor(view);
 589                 }
 590                 goto set_timer_and_return;
 591         } else {
 592                 // Make sure that the cursor is visible.
 593                 if (!view->the_locking_inset) {
 594                         view->pimpl_->screen->ShowCursor();
 595                 } else {
 596                         if (!view->the_locking_inset->isCursorVisible())
 597                                 view->the_locking_inset->
 598                                         ToggleInsetCursor(view);
 599                 }
 600                 // This is only run when work_area_focus or lyx_focus is false.
 601                 Window tmpwin;
 602                 int tmp;
 603                 XGetInputFocus(fl_display, &tmpwin, &tmp);
 604                 // Commenting this out, we have not had problems with this
 605                 // for a long time. We will probably work on this code later
 606                 // and we can reenable this debug code then. Now it only
 607                 // anoying when debugging. (Lgb)
 608                 //if (lyxerr.debugging(Debug::INFO)) {
 609                 //      lyxerr << "tmpwin: " << tmpwin
 610                 //             << "\nwindow: " << view->owner_->getForm()->window
 611                 //             << "\nwork_area_focus: " << view->work_area_focus
 612                 //             << "\nlyx_focus      : " << view->lyx_focus
 613                 //             << endl;
 614                 //}
 615                 if (tmpwin != view->pimpl_->owner_->getForm()->window) {
 616                         view->pimpl_->lyx_focus = false;
 617                         goto skip_timer;
 618                 } else {
 619                         view->pimpl_->lyx_focus = true;
 620                         if (!view->pimpl_->work_area_focus)
 621                                 goto skip_timer;
 622                         else
 623                                 goto set_timer_and_return;
 624                 }
 625         }
 626
 627   set_timer_and_return:
 628         fl_set_timer(ob, 0.4);
 629   skip_timer:
 630         return;
 631 }
 632
 633
 634 void BufferView::workAreaSelectionNotify(Window win, XEvent * event)
 635 {
 636         pimpl_->workAreaSelectionNotify(win, event);
 637 }
 638
 639
 640 void BufferView::cursorPrevious()
 641 {
 642         if (!text->cursor.row->previous) return;
 643
 644         long y = pimpl_->screen->first;
 645         Row * cursorrow = text->cursor.row;
 646         text->SetCursorFromCoordinates(text->cursor.x_fix, y);
 647         text->FinishUndo();
 648         // This is to allow jumping over large insets
 649         if ((cursorrow == text->cursor.row))
 650                 text->CursorUp();
 651
 652         if (text->cursor.row->height < pimpl_->workarea->height())
 653                 pimpl_->screen->Draw(text->cursor.y
 654                                   - text->cursor.row->baseline
 655                                   + text->cursor.row->height
 656                                   - pimpl_->workarea->height() + 1 );
 657 }
 658
 659
 660 void BufferView::cursorNext()
 661 {
 662         if (!text->cursor.row->next) return;
 663
 664         long y = pimpl_->screen->first;
 665         text->GetRowNearY(y);
 666         Row * cursorrow = text->cursor.row;
 667         text->SetCursorFromCoordinates(text->cursor.x_fix, y
 668                                        + pimpl_->workarea->height());
 669         text->FinishUndo();
 670         // This is to allow jumping over large insets
 671         if ((cursorrow == text->cursor.row))
 672                 text->CursorDown();
 673
 674         if (text->cursor.row->height < pimpl_->workarea->height())
 675                 pimpl_->screen->Draw(text->cursor.y
 676                                   - text->cursor.row->baseline);
 677 }
 678
 679
 680 bool BufferView::available() const
 681 {
 682         if (pimpl_->buffer_ && text) return true;
 683         return false;
 684 }
 685
 686
 687 void BufferView::beforeChange()
 688 {
 689         toggleSelection();
 690         text->ClearSelection();
 691         FreeUpdateTimer();
 692 }
 693
 694
 695 void BufferView::savePosition()
 696 {
 697         pimpl_->backstack.push(buffer()->fileName(),
 698                        text->cursor.x,
 699                        text->cursor.y);
 700 }
 701
 702
 703 void BufferView::restorePosition()
 704 {
 705         if (pimpl_->backstack.empty()) return;
 706
 707         int  x, y;
 708         string fname = pimpl_->backstack.pop(&x, &y);
 709
 710         beforeChange();
 711         Buffer * b = bufferlist.exists(fname) ?
 712                 bufferlist.getBuffer(fname) :
 713                 bufferlist.loadLyXFile(fname); // don't ask, just load it
 714         buffer(b);
 715         text->SetCursorFromCoordinates(x, y);
 716         update(0);
 717 }
 718
 719
 720 void BufferView::update(signed char f)
 721 {
 722         owner()->updateLayoutChoice();
 723
 724         if (!text->selection && f > -3)
 725                 text->sel_cursor = text->cursor;
 726
 727         FreeUpdateTimer();
 728         text->FullRebreak();
 729
 730         update();
 731
 732         if (f != 3 && f != -3) {
 733                 fitCursor();
 734                 updateScrollbar();
 735         }
 736
 737         if (f == 1 || f == -1) {
 738                 if (buffer()->isLyxClean()) {
 739                         buffer()->markDirty();
 740                         owner()->getMiniBuffer()->setTimer(4);
 741                 } else {
 742                         buffer()->markDirty();
 743                 }
 744         }
 745 }
 746
 747
 748 void BufferView::smallUpdate(signed char f)
 749 {
 750         pimpl_->screen->SmallUpdate();
 751         if (pimpl_->screen->TopCursorVisible()
 752             != pimpl_->screen->first) {
 753                 update(f);
 754                 return;
 755         }
 756
 757         fitCursor();
 758         updateScrollbar();
 759
 760         if (!text->selection)
 761                 text->sel_cursor = text->cursor;
 762
 763         if (f == 1 || f == -1) {
 764                 if (buffer()->isLyxClean()) {
 765                         buffer()->markDirty();
 766                         owner()->getMiniBuffer()->setTimer(4);
 767                 } else {
 768                         buffer()->markDirty();
 769                 }
 770         }
 771 }
 772
 773
 774 void BufferView::setState()
 775 {
 776         if (!lyxrc.rtl_support)
 777                 return;
 778
 779         if (text->real_current_font.isVisibleRightToLeft()) {
 780                 if (pimpl_->owner_->getIntl()->primarykeymap)
 781                         pimpl_->owner_->getIntl()->KeyMapSec();
 782         } else {
 783                 if (!pimpl_->owner_->getIntl()->primarykeymap)
 784                         pimpl_->owner_->getIntl()->KeyMapPrim();
 785         }
 786 }
 787
 788
 789 void BufferView::insetSleep()
 790 {
 791         if (the_locking_inset && !inset_slept) {
 792                 the_locking_inset->GetCursorPos(slx, sly);
 793                 the_locking_inset->InsetUnlock(this);
 794                 inset_slept = true;
 795         }
 796 }
 797
 798
 799 void BufferView::insetWakeup()
 800 {
 801         if (the_locking_inset && inset_slept) {
 802                 the_locking_inset->Edit(this, slx, sly, 0);
 803                 inset_slept = false;
 804         }
 805 }
 806
 807
 808 void BufferView::insetUnlock()
 809 {
 810         if (the_locking_inset) {
 811                 if (!inset_slept) the_locking_inset->InsetUnlock(this);
 812                 the_locking_inset = 0;
 813                 text->FinishUndo();
 814                 inset_slept = false;
 815         }
 816 }
 817
 818
 819 bool BufferView::focus() const
 820 {
 821         return pimpl_->workarea->hasFocus();
 822 }
 823
 824
 825 void BufferView::focus(bool f)
 826 {
 827         if (f) pimpl_->workarea->setFocus();
 828 }
 829
 830
 831 bool BufferView::active() const
 832 {
 833         return pimpl_->workarea->active();
 834 }
 835
 836
 837 Painter & BufferView::getPainter() const
 838 {
 839     return pimpl_->workarea->getPainter();
 840 }
 841
 842
 843 unsigned short BufferView::paperWidth() const
 844 {
 845     return text->paperWidth();
 846 }
 847
 848
 849 bool BufferView::belowMouse() const
 850 {
 851         return pimpl_->workarea->belowMouse();
 852 }
 853
 854
 855 void BufferView::showCursor()
 856 {
 857         if (pimpl_->screen)
 858                 pimpl_->screen->ShowCursor();
 859 }
 860
 861
 862 void BufferView::hideCursor()
 863 {
 864         if (pimpl_->screen)
 865                 pimpl_->screen->HideCursor();
 866 }
 867
 868
 869 void BufferView::toggleSelection(bool b)
 870 {
 871         if (pimpl_->screen)
 872                 pimpl_->screen->ToggleSelection(b);
 873 }
 874
 875
 876 void BufferView::toggleToggle()
 877 {
 878         if (pimpl_->screen)
 879                 pimpl_->screen->ToggleToggle();
 880 }
 881
 882
 883 void BufferView::center()
 884 {
 885         beforeChange();
 886         if (text->cursor.y > pimpl_->workarea->height() / 2) {
 887                 pimpl_->screen->Draw(text->cursor.y - pimpl_->workarea->height() / 2);
 888         } else {
 889                 pimpl_->screen->Draw(0);
 890         }
 891         update(0);
 892         redraw();
 893 }