src/BufferView_pimpl.C

   1 /**
   2  * \file BufferView_pimpl.C
   3  * Copyright 2002 the LyX Team
   4  * Read the file COPYING
   5  *
   6  * \author various
   7  */
   8
   9 #include <config.h>
  10
  11 #ifdef __GNUG__
  12 #pragma implementation
  13 #endif
  14
  15 #include "BufferView_pimpl.h"
  16 #include "frontends/WorkArea.h"
  17 #include "frontends/screen.h"
  18 #include "frontends/LyXScreenFactory.h"
  19 #include "frontends/WorkAreaFactory.h"
  20 #include "frontends/Dialogs.h"
  21 #include "frontends/Alert.h"
  22 #include "frontends/FileDialog.h"
  23 #include "lyxtext.h"
  24 #include "lyxrow.h"
  25 #include "paragraph.h"
  26 #include "frontends/LyXView.h"
  27 #include "commandtags.h"
  28 #include "lyxfunc.h"
  29 #include "debug.h"
  30 #include "bufferview_funcs.h"
  31 #include "TextCache.h"
  32 #include "bufferlist.h"
  33 #include "lyxrc.h"
  34 #include "intl.h"
  35 // added for Dispatch functions
  36 #include "lyx_cb.h"
  37 #include "lyx_main.h"
  38 #include "FloatList.h"
  39 #include "gettext.h"
  40 #include "ParagraphParameters.h"
  41 #include "undo_funcs.h"
  42 #include "funcrequest.h"
  43
  44 #include "insets/insetbib.h"
  45 #include "insets/insettext.h"
  46 #include "insets/inseturl.h"
  47 #include "insets/insetlatexaccent.h"
  48 #include "insets/insettoc.h"
  49 #include "insets/insetref.h"
  50 #include "insets/insetparent.h"
  51 #include "insets/insetindex.h"
  52 #include "insets/insetinclude.h"
  53 #include "insets/insetcite.h"
  54 #include "insets/insetgraphics.h"
  55 #include "insets/insetmarginal.h"
  56 #include "insets/insettabular.h"
  57 #include "insets/insetcaption.h"
  58 #include "insets/insetfloatlist.h"
  59
  60 #include "mathed/formulabase.h"
  61
  62 #include "graphics/Previews.h"
  63
  64 #include "support/LAssert.h"
  65 #include "support/lstrings.h"
  66 #include "support/filetools.h"
  67
  68 #include <boost/bind.hpp>
  69 #include <boost/signals/connection.hpp>
  70
  71 #include <cstdio>
  72 #include <unistd.h>
  73 #include <sys/wait.h>
  74
  75
  76 using std::vector;
  77 using std::find_if;
  78 using std::find;
  79 using std::pair;
  80 using std::endl;
  81 using std::make_pair;
  82 using std::min;
  83
  84 using lyx::pos_type;
  85
  86 /* the selection possible is needed, that only motion events are
  87  * used, where the bottom press event was on the drawing area too */
  88 bool selection_possible = false;
  89
  90 extern BufferList bufferlist;
  91 extern int bibitemMaxWidth(BufferView *, LyXFont const &);
  92
  93
  94 namespace {
  95
  96 unsigned int const saved_positions_num = 20;
  97
  98 // All the below connection objects are needed because of a bug in some
  99 // versions of GCC (<=2.96 are on the suspects list.) By having and assigning
 100 // to these connections we avoid a segfault upon startup, and also at exit.
 101 // (Lgb)
 102
 103 boost::signals::connection timecon;
 104 boost::signals::connection doccon;
 105 boost::signals::connection resizecon;
 106 boost::signals::connection bpresscon;
 107 boost::signals::connection breleasecon;
 108 boost::signals::connection motioncon;
 109 boost::signals::connection doublecon;
 110 boost::signals::connection triplecon;
 111 boost::signals::connection kpresscon;
 112 boost::signals::connection selectioncon;
 113 boost::signals::connection lostcon;
 114
 115 } // anon namespace
 116
 117
 118 BufferView::Pimpl::Pimpl(BufferView * bv, LyXView * owner,
 119              int xpos, int ypos, int width, int height)
 120         : bv_(bv), owner_(owner), buffer_(0), cursor_timeout(400),
 121           using_xterm_cursor(false)
 122 {
 123         workarea_.reset(WorkAreaFactory::create(xpos, ypos, width, height));
 124         screen_.reset(LyXScreenFactory::create(workarea()));
 125
 126         // Setup the signals
 127         doccon = workarea().scrollDocView
 128                 .connect(boost::bind(&BufferView::Pimpl::scrollDocView, this, _1));
 129         resizecon = workarea().workAreaResize
 130                 .connect(boost::bind(&BufferView::Pimpl::workAreaResize, this));
 131         bpresscon = workarea().workAreaButtonPress
 132                 .connect(boost::bind(&BufferView::Pimpl::workAreaButtonPress, this, _1, _2, _3));
 133         breleasecon = workarea().workAreaButtonRelease
 134                 .connect(boost::bind(&BufferView::Pimpl::workAreaButtonRelease, this, _1, _2, _3));
 135         motioncon = workarea().workAreaMotionNotify
 136                 .connect(boost::bind(&BufferView::Pimpl::workAreaMotionNotify, this, _1, _2, _3));
 137         doublecon = workarea().workAreaDoubleClick
 138                 .connect(boost::bind(&BufferView::Pimpl::doubleClick, this, _1, _2, _3));
 139         triplecon = workarea().workAreaTripleClick
 140                 .connect(boost::bind(&BufferView::Pimpl::tripleClick, this, _1, _2, _3));
 141         kpresscon = workarea().workAreaKeyPress
 142                 .connect(boost::bind(&BufferView::Pimpl::workAreaKeyPress, this, _1, _2));
 143         selectioncon = workarea().selectionRequested
 144                 .connect(boost::bind(&BufferView::Pimpl::selectionRequested, this));
 145         lostcon = workarea().selectionLost
 146                 .connect(boost::bind(&BufferView::Pimpl::selectionLost, this));
 147
 148         timecon = cursor_timeout.timeout
 149                 .connect(boost::bind(&BufferView::Pimpl::cursorToggle, this));
 150         cursor_timeout.start();
 151         saved_positions.resize(saved_positions_num);
 152 }
 153
 154
 155 WorkArea & BufferView::Pimpl::workarea() const
 156 {
 157         return *workarea_.get();
 158 }
 159
 160
 161 LyXScreen & BufferView::Pimpl::screen() const
 162 {
 163         return *screen_.get();
 164 }
 165
 166
 167 Painter & BufferView::Pimpl::painter() const
 168 {
 169         return workarea().getPainter();
 170 }
 171
 172
 173 void BufferView::Pimpl::buffer(Buffer * b)
 174 {
 175         lyxerr[Debug::INFO] << "Setting buffer in BufferView ("
 176                             << b << ")" << endl;
 177         if (buffer_) {
 178                 buffer_->delUser(bv_);
 179
 180                 // Put the old text into the TextCache, but
 181                 // only if the buffer is still loaded.
 182                 // Also set the owner of the test to 0
 183                 //              bv_->text->owner(0);
 184                 textcache.add(buffer_, workarea().workWidth(), bv_->text);
 185                 if (lyxerr.debugging())
 186                         textcache.show(lyxerr, "BufferView::buffer");
 187
 188                 bv_->text = 0;
 189         }
 190
 191         // set current buffer
 192         buffer_ = b;
 193
 194         if (bufferlist.getState() == BufferList::CLOSING) return;
 195
 196         // if we are closing the buffer, use the first buffer as current
 197         if (!buffer_) {
 198                 buffer_ = bufferlist.first();
 199         }
 200
 201         if (buffer_) {
 202                 lyxerr[Debug::INFO] << "Buffer addr: " << buffer_ << endl;
 203                 buffer_->addUser(bv_);
 204
 205                 // If we don't have a text object for this, we make one
 206                 if (bv_->text == 0) {
 207                         resizeCurrentBuffer();
 208                 }
 209
 210                 // FIXME: needed when ?
 211                 bv_->text->first_y =
 212                         screen().topCursorVisible(bv_->text->cursor, bv_->text->first_y);
 213
 214                 // Similarly, buffer-dependent dialogs should be updated or
 215                 // hidden. This should go here because some dialogs (eg ToC)
 216                 // require bv_->text.
 217                 owner_->getDialogs().updateBufferDependent(true);
 218         } else {
 219                 lyxerr[Debug::INFO] << "  No Buffer!" << endl;
 220                 owner_->getDialogs().hideBufferDependent();
 221
 222                 // Also remove all remaining text's from the testcache.
 223                 // (there should not be any!) (if there is any it is a
 224                 // bug!)
 225                 if (lyxerr.debugging())
 226                         textcache.show(lyxerr, "buffer delete all");
 227                 textcache.clear();
 228         }
 229
 230         repaint();
 231         updateScrollbar();
 232         owner_->updateMenubar();
 233         owner_->updateToolbar();
 234         owner_->updateLayoutChoice();
 235         owner_->updateWindowTitle();
 236
 237         if (grfx::Previews::activated() && buffer_)
 238                 grfx::Previews::get().generateBufferPreviews(*buffer_);
 239 }
 240
 241
 242 bool BufferView::Pimpl::fitCursor()
 243 {
 244         bool ret;
 245
 246         if (bv_->theLockingInset()) {
 247                 bv_->theLockingInset()->fitInsetCursor(bv_);
 248                 ret = true;
 249         } else {
 250                 ret = screen().fitCursor(bv_->text, bv_);
 251         }
 252
 253         bv_->owner()->getDialogs().updateParagraph();
 254         if (ret)
 255                 updateScrollbar();
 256         return ret;
 257 }
 258
 259
 260 void BufferView::Pimpl::redoCurrentBuffer()
 261 {
 262         lyxerr[Debug::INFO] << "BufferView::redoCurrentBuffer" << endl;
 263         if (buffer_ && bv_->text) {
 264                 resizeCurrentBuffer();
 265                 updateScrollbar();
 266                 owner_->updateLayoutChoice();
 267                 repaint();
 268         }
 269 }
 270
 271
 272 int BufferView::Pimpl::resizeCurrentBuffer()
 273 {
 274         lyxerr[Debug::INFO] << "resizeCurrentBuffer" << endl;
 275
 276         Paragraph * par = 0;
 277         Paragraph * selstartpar = 0;
 278         Paragraph * selendpar = 0;
 279         UpdatableInset * the_locking_inset = 0;
 280
 281         pos_type pos = 0;
 282         pos_type selstartpos = 0;
 283         pos_type selendpos = 0;
 284         bool selection = false;
 285         bool mark_set  = false;
 286
 287         owner_->prohibitInput();
 288
 289         owner_->message(_("Formatting document..."));
 290
 291         if (bv_->text) {
 292                 par = bv_->text->cursor.par();
 293                 pos = bv_->text->cursor.pos();
 294                 selstartpar = bv_->text->selection.start.par();
 295                 selstartpos = bv_->text->selection.start.pos();
 296                 selendpar = bv_->text->selection.end.par();
 297                 selendpos = bv_->text->selection.end.pos();
 298                 selection = bv_->text->selection.set();
 299                 mark_set = bv_->text->selection.mark();
 300                 the_locking_inset = bv_->theLockingInset();
 301                 buffer_->resizeInsets(bv_);
 302                 // I don't think the delete and new are necessary here we just could
 303                 // call only init! (Jug 20020419)
 304                 delete bv_->text;
 305                 bv_->text = new LyXText(bv_);
 306                 bv_->text->init(bv_);
 307         } else {
 308                 // See if we have a text in TextCache that fits
 309                 // the new buffer_ with the correct width.
 310                 bv_->text = textcache.findFit(buffer_, workarea().workWidth());
 311                 if (bv_->text) {
 312                         if (lyxerr.debugging()) {
 313                                 lyxerr << "Found a LyXText that fits:\n";
 314                                 textcache.show(lyxerr, make_pair(buffer_, make_pair(workarea().workWidth(), bv_->text)));
 315                         }
 316                         // Set the owner of the newly found text
 317                         //      bv_->text->owner(bv_);
 318                         if (lyxerr.debugging())
 319                                 textcache.show(lyxerr, "resizeCurrentBuffer");
 320                 } else {
 321                         bv_->text = new LyXText(bv_);
 322                         bv_->text->init(bv_);
 323                         //buffer_->resizeInsets(bv_);
 324                 }
 325         }
 326
 327         if (par) {
 328                 bv_->text->selection.set(true);
 329                 // At this point just to avoid the Delete-Empty-Paragraph-
 330                 // Mechanism when setting the cursor.
 331                 bv_->text->selection.mark(mark_set);
 332                 if (selection) {
 333                         bv_->text->setCursor(bv_, selstartpar, selstartpos);
 334                         bv_->text->selection.cursor = bv_->text->cursor;
 335                         bv_->text->setCursor(bv_, selendpar, selendpos);
 336                         bv_->text->setSelection(bv_);
 337                         bv_->text->setCursor(bv_, par, pos);
 338                 } else {
 339                         bv_->text->setCursor(bv_, par, pos);
 340                         bv_->text->selection.cursor = bv_->text->cursor;
 341                         bv_->text->selection.set(false);
 342                 }
 343                 // remake the inset locking
 344                 bv_->theLockingInset(the_locking_inset);
 345         }
 346
 347         bv_->text->first_y = screen().topCursorVisible(bv_->text->cursor, bv_->text->first_y);
 348
 349         switchKeyMap();
 350         owner_->allowInput();
 351
 352         updateScrollbar();
 353
 354         return 0;
 355 }
 356
 357
 358 void BufferView::Pimpl::repaint()
 359 {
 360         // Regenerate the screen.
 361         screen().redraw(bv_->text, bv_);
 362 }
 363
 364
 365 void BufferView::Pimpl::updateScrollbar()
 366 {
 367         if (!bv_->text) {
 368                 lyxerr[Debug::GUI] << "no text in updateScrollbar" << endl;
 369                 workarea().setScrollbarParams(0, 0, 0);
 370                 return;
 371         }
 372
 373         LyXText const & t = *bv_->text;
 374
 375         lyxerr[Debug::GUI] << "Updating scrollbar: h " << t.height << ", first_y "
 376                 << t.first_y << ", default height " << t.defaultHeight() << endl;
 377
 378         workarea().setScrollbarParams(t.height, t.first_y, t.defaultHeight());
 379 }
 380
 381
 382 void BufferView::Pimpl::scrollDocView(int value)
 383 {
 384         lyxerr[Debug::GUI] << "scrollDocView of " << value << endl;
 385
 386         if (!buffer_) return;
 387
 388         screen().draw(bv_->text, bv_, value);
 389
 390         if (!lyxrc.cursor_follows_scrollbar) {
 391                 return;
 392         }
 393
 394         LyXText * vbt = bv_->text;
 395
 396         int const height = vbt->defaultHeight();
 397         int const first = static_cast<int>((bv_->text->first_y + height));
 398         int const last = static_cast<int>((bv_->text->first_y + workarea().workHeight() - height));
 399
 400         if (vbt->cursor.y() < first)
 401                 vbt->setCursorFromCoordinates(bv_, 0, first);
 402         else if (vbt->cursor.y() > last)
 403                 vbt->setCursorFromCoordinates(bv_, 0, last);
 404 }
 405
 406
 407 int BufferView::Pimpl::scroll(long time)
 408 {
 409         if (!buffer_)
 410                 return 0;
 411
 412         LyXText const * t = bv_->text;
 413
 414         double const diff = t->defaultHeight()
 415                 + double(time) * double(time) * 0.125;
 416
 417         scrollDocView(int(diff));
 418         workarea().setScrollbarParams(t->height, t->first_y, t->defaultHeight());
 419         return 0;
 420 }
 421
 422
 423 void BufferView::Pimpl::workAreaKeyPress(LyXKeySymPtr key,
 424                                          key_modifier::state state)
 425 {
 426         bv_->owner()->getLyXFunc().processKeySym(key, state);
 427 }
 428
 429
 430 void BufferView::Pimpl::workAreaMotionNotify(int x, int y, mouse_button::state state)
 431 {
 432         // Only use motion with button 1
 433         if (!(state & mouse_button::button1))
 434                 return;
 435
 436         if (!buffer_)
 437                 return;
 438
 439         // Check for inset locking
 440         if (bv_->theLockingInset()) {
 441                 LyXCursor cursor = bv_->text->cursor;
 442                 LyXFont font = bv_->text->getFont(buffer_,
 443                                                   cursor.par(), cursor.pos());
 444                 int width = bv_->theLockingInset()->width(bv_, font);
 445                 int inset_x = font.isVisibleRightToLeft()
 446                         ? cursor.ix() - width : cursor.ix();
 447                 int start_x = inset_x + bv_->theLockingInset()->scroll();
 448
 449                 FuncRequest cmd(bv_, LFUN_MOUSE_MOTION,
 450                                   x - start_x, y - cursor.iy() + bv_->text->first_y, state);
 451                 bv_->theLockingInset()->localDispatch(cmd);
 452                 return;
 453         }
 454
 455         // The test for not selection possible is needed, that only motion
 456         // events are used, where the bottom press event was on
 457         //  the drawing area too
 458         if (!selection_possible)
 459                 return;
 460
 461         screen().hideCursor();
 462
 463         Row * cursorrow = bv_->text->cursor.row();
 464         bv_->text->setCursorFromCoordinates(bv_, x, y + bv_->text->first_y);
 465 #if 0
 466         // sorry for this but I have a strange error that the y value jumps at
 467         // a certain point. This seems like an error in my xforms library or
 468         // in some other local environment, but I would like to leave this here
 469         // for the moment until I can remove this (Jug 20020418)
 470         if (y_before < bv_->text->cursor.y())
 471                 lyxerr << y_before << ":" << bv_->text->cursor.y() << endl;
 472 #endif
 473         // This is to allow jumping over large insets
 474         if (cursorrow == bv_->text->cursor.row()) {
 475                 if (y >= int(workarea().workHeight())) {
 476                         bv_->text->cursorDown(bv_, false);
 477                 } else if (y < 0) {
 478                         bv_->text->cursorUp(bv_, false);
 479                 }
 480         }
 481
 482         if (!bv_->text->selection.set())
 483                 update(bv_->text, BufferView::UPDATE); // Maybe an empty line was deleted
 484
 485         bv_->text->setSelection(bv_);
 486         screen().toggleToggle(bv_->text, bv_);
 487         fitCursor();
 488         showCursor();
 489 }
 490
 491
 492 // Single-click on work area
 493 void BufferView::Pimpl::workAreaButtonPress(int xpos, int ypos,
 494                                             mouse_button::state button)
 495 {
 496         if (!buffer_)
 497                 return;
 498
 499         // ok ok, this is a hack (for xforms)
 500         if (button == mouse_button::button4) {
 501                 scroll(-lyxrc.wheel_jump);
 502                 // We shouldn't go further down as we really should only do the
 503                 // scrolling and be done with this. Otherwise we may open some
 504                 // dialogs (Jug 20020424).
 505                 return;
 506         } else if (button == mouse_button::button5) {
 507                 scroll(lyxrc.wheel_jump);
 508                 // We shouldn't go further down as we really should only do the
 509                 // scrolling and be done with this. Otherwise we may open some
 510                 // dialogs (Jug 20020424).
 511                 return;
 512         }
 513
 514         Inset * inset_hit = checkInsetHit(bv_->text, xpos, ypos);
 515
 516         // Middle button press pastes if we have a selection
 517         // We do this here as if the selection was inside an inset
 518         // it could get cleared on the unlocking of the inset so
 519         // we have to check this first
 520         bool paste_internally = false;
 521         if (button == mouse_button::button2 && bv_->getLyXText()->selection.set()) {
 522                 owner_->dispatch(FuncRequest(LFUN_COPY));
 523                 paste_internally = true;
 524         }
 525
 526         int const screen_first = bv_->text->first_y;
 527
 528         if (bv_->theLockingInset()) {
 529                 // We are in inset locking mode
 530
 531                 // Check whether the inset was hit. If not reset mode,
 532                 // otherwise give the event to the inset
 533                 if (inset_hit == bv_->theLockingInset()) {
 534                         FuncRequest cmd(bv_, LFUN_MOUSE_PRESS, xpos, ypos, button);
 535                         bv_->theLockingInset()->localDispatch(cmd);
 536                         return;
 537                 }
 538                 bv_->unlockInset(bv_->theLockingInset());
 539         }
 540
 541         if (!inset_hit)
 542                 selection_possible = true;
 543         screen().hideCursor();
 544
 545         // Clear the selection
 546         screen().toggleSelection(bv_->text, bv_);
 547         bv_->text->clearSelection();
 548         bv_->text->fullRebreak(bv_);
 549         update();
 550         updateScrollbar();
 551
 552         // Single left click in math inset?
 553         if (isHighlyEditableInset(inset_hit)) {
 554                 // Highly editable inset, like math
 555                 UpdatableInset * inset = static_cast<UpdatableInset *>(inset_hit);
 556                 selection_possible = false;
 557                 owner_->updateLayoutChoice();
 558                 owner_->message(inset->editMessage());
 559                 //inset->edit(bv_, xpos, ypos, button);
 560                 // We just have to lock the inset before calling a PressEvent on it!
 561                 // we don't need the edit() call here! (Jug20020329)
 562                 if (!bv_->lockInset(inset)) {
 563                         lyxerr[Debug::INSETS] << "Cannot lock inset" << endl;
 564                 }
 565                 FuncRequest cmd(bv_, LFUN_MOUSE_PRESS, xpos, ypos, button);
 566                 inset->localDispatch(cmd);
 567                 return;
 568         }
 569         // I'm not sure we should continue here if we hit an inset (Jug20020403)
 570
 571         // Right click on a footnote flag opens float menu
 572         if (button == mouse_button::button3) {
 573                 selection_possible = false;
 574                 return;
 575         }
 576
 577         if (!inset_hit) // otherwise it was already set in checkInsetHit(...)
 578                 bv_->text->setCursorFromCoordinates(bv_, xpos, ypos + screen_first);
 579         finishUndo();
 580         bv_->text->selection.cursor = bv_->text->cursor;
 581         bv_->text->cursor.x_fix(bv_->text->cursor.x());
 582
 583         owner_->updateLayoutChoice();
 584         if (fitCursor()) {
 585                 selection_possible = false;
 586         }
 587
 588         // Insert primary selection with middle mouse
 589         // if there is a local selection in the current buffer,
 590         // insert this
 591         if (button == mouse_button::button2) {
 592                 if (paste_internally)
 593                         owner_->dispatch(FuncRequest(LFUN_PASTE));
 594                 else
 595                         owner_->dispatch(FuncRequest(LFUN_PASTESELECTION, "paragraph"));
 596                 selection_possible = false;
 597                 return;
 598         }
 599 }
 600
 601
 602 void BufferView::Pimpl::doubleClick(int /*x*/, int /*y*/, mouse_button::state button)
 603 {
 604         if (!buffer_)
 605                 return;
 606
 607         LyXText * text = bv_->getLyXText();
 608
 609         if (text->bv_owner && bv_->theLockingInset())
 610                 return;
 611
 612         if (button == mouse_button::button1) {
 613                 if (text->bv_owner) {
 614                         screen().hideCursor();
 615                         screen().toggleSelection(text, bv_);
 616                         text->selectWord(bv_, LyXText::WHOLE_WORD_STRICT);
 617                         screen().toggleSelection(text, bv_, false);
 618                 } else {
 619                         text->selectWord(bv_, LyXText::WHOLE_WORD_STRICT);
 620                 }
 621                 // This will fit the cursor on the screen if necessary
 622                 update(text, BufferView::SELECT|BufferView::FITCUR);
 623                 workarea().haveSelection(bv_->getLyXText()->selection.set());
 624         }
 625 }
 626
 627
 628 void BufferView::Pimpl::tripleClick(int /*x*/, int /*y*/, mouse_button::state button)
 629 {
 630         if (!buffer_)
 631                 return;
 632
 633         LyXText * text = bv_->getLyXText();
 634
 635         if (text->bv_owner && bv_->theLockingInset())
 636             return;
 637
 638         if (button == mouse_button::button1) {
 639                 if (text->bv_owner) {
 640                         screen().hideCursor();
 641                         screen().toggleSelection(text, bv_);
 642                 }
 643                 text->cursorHome(bv_);
 644                 text->selection.cursor = text->cursor;
 645                 text->cursorEnd(bv_);
 646                 text->setSelection(bv_);
 647                 if (text->bv_owner) {
 648                         screen().toggleSelection(text, bv_, false);
 649                 }
 650                 // This will fit the cursor on the screen if necessary
 651                 update(text, BufferView::SELECT|BufferView::FITCUR);
 652                 workarea().haveSelection(bv_->getLyXText()->selection.set());
 653         }
 654 }
 655
 656
 657 void BufferView::Pimpl::selectionRequested()
 658 {
 659         static string sel;
 660
 661         if (!available())
 662                 return;
 663
 664         LyXText * text = bv_->getLyXText();
 665
 666         if (text->selection.set() &&
 667                 (!bv_->text->xsel_cache.set() ||
 668                  text->selection.start != bv_->text->xsel_cache.start ||
 669                  text->selection.end != bv_->text->xsel_cache.end))
 670         {
 671                 bv_->text->xsel_cache = text->selection;
 672                 sel = text->selectionAsString(bv_->buffer(), false);
 673         } else if (!text->selection.set()) {
 674                 sel = string();
 675                 bv_->text->xsel_cache.set(false);
 676         }
 677         if (!sel.empty()) {
 678                 workarea().putClipboard(sel);
 679         }
 680 }
 681
 682
 683 void BufferView::Pimpl::selectionLost()
 684 {
 685         if (available()) {
 686                 hideCursor();
 687                 toggleSelection();
 688                 bv_->getLyXText()->clearSelection();
 689                 showCursor();
 690                 bv_->text->xsel_cache.set(false);
 691         }
 692 }
 693
 694
 695 void BufferView::Pimpl::workAreaButtonRelease(int x, int y,
 696                                               mouse_button::state button)
 697 {
 698         // do nothing if we used the mouse wheel
 699         if (!buffer_ || button == mouse_button::button4 || button == mouse_button::button5)
 700                 return;
 701
 702         // If we hit an inset, we have the inset coordinates in these
 703         // and inset_hit points to the inset.  If we do not hit an
 704         // inset, inset_hit is 0, and inset_x == x, inset_y == y.
 705         Inset * inset_hit = checkInsetHit(bv_->text, x, y);
 706
 707         if (bv_->theLockingInset()) {
 708                 // We are in inset locking mode.
 709
 710                 // LyX does a kind of work-area grabbing for insets.
 711                 // Only a ButtonPress FuncRequest outside the inset will
 712                 // force a insetUnlock.
 713                 FuncRequest cmd(bv_, LFUN_MOUSE_RELEASE, x, y, button);
 714                 bv_->theLockingInset()->localDispatch(cmd);
 715                 return;
 716         }
 717
 718         selection_possible = false;
 719
 720         if (button == mouse_button::button2)
 721                 return;
 722
 723         // finish selection
 724         if (button == mouse_button::button1) {
 725                 workarea().haveSelection(bv_->getLyXText()->selection.set());
 726         }
 727
 728         switchKeyMap();
 729         owner_->view_state_changed();
 730         owner_->updateMenubar();
 731         owner_->updateToolbar();
 732
 733         // Did we hit an editable inset?
 734         if (inset_hit) {
 735                 selection_possible = false;
 736
 737                 // if we reach this point with a selection, it
 738                 // must mean we are currently selecting.
 739                 // But we don't want to open the inset
 740                 // because that is annoying for the user.
 741                 // So just pretend we didn't hit it.
 742                 // this is OK because a "kosher" ButtonRelease
 743                 // will follow a ButtonPress that clears
 744                 // the selection.
 745                 // Note this also fixes selection drawing
 746                 // problems if we end up opening an inset
 747                 if (bv_->getLyXText()->selection.set())
 748                         return;
 749
 750                 // CHECK fix this proper in 0.13
 751                 // well, maybe 13.0 !!!!!!!!!
 752
 753                 // Following a ref shouldn't issue
 754                 // a push on the undo-stack
 755                 // anylonger, now that we have
 756                 // keybindings for following
 757                 // references and returning from
 758                 // references.  IMHO though, it
 759                 // should be the inset's own business
 760                 // to push or not push on the undo
 761                 // stack. They don't *have* to
 762                 // alter the document...
 763                 // (Joacim)
 764                 // ...or maybe the SetCursorParUndo()
 765                 // below isn't necessary at all anylonger?
 766                 if (inset_hit->lyxCode() == Inset::REF_CODE) {
 767                         setCursorParUndo(bv_);
 768                 }
 769
 770                 owner_->message(inset_hit->editMessage());
 771
 772                 if (isHighlyEditableInset(inset_hit)) {
 773                         // Highly editable inset, like math
 774                         UpdatableInset *inset = (UpdatableInset *)inset_hit;
 775                         FuncRequest cmd(bv_, LFUN_MOUSE_RELEASE, x, y, button);
 776                         inset->localDispatch(cmd);
 777                 } else {
 778                         FuncRequest cmd(bv_, LFUN_MOUSE_RELEASE, x, y, button);
 779                         inset_hit->localDispatch(cmd);
 780                         // IMO this is a grosshack! Inset's should be changed so that
 781                         // they call the actions they have to do with the insetButtonRel.
 782                         // function and not in the edit(). This should be changed
 783                         // (Jug 20020329)
 784 #ifdef WITH_WARNINGS
 785 #warning Please remove donot call inset->edit() here (Jug 20020812)
 786 #endif
 787                         inset_hit->edit(bv_, x, y, button);
 788                 }
 789                 return;
 790         }
 791
 792         // Maybe we want to edit a bibitem ale970302
 793         if (bv_->text->cursor.par()->bibkey) {
 794                 bool const is_rtl = bv_->text->cursor.par()->isRightToLeftPar(buffer_->params);
 795                 int const width = bibitemMaxWidth(bv_, buffer_->params.getLyXTextClass().defaultfont());
 796                 if ((is_rtl && x > bv_->text->workWidth(bv_)-20-width) ||
 797                     (!is_rtl && x < 20+width)) {
 798                         bv_->text->cursor.par()->bibkey->edit(bv_, 0, 0, mouse_button::none);
 799                 }
 800         }
 801
 802         return;
 803 }
 804
 805
 806 Box BufferView::Pimpl::insetDimensions(LyXText const & text,
 807                                        LyXCursor const & cursor) const
 808 {
 809         Paragraph /*const*/ & par = *cursor.par();
 810         pos_type const pos = cursor.pos();
 811
 812         lyx::Assert(par.getInset(pos));
 813
 814         Inset const & inset(*par.getInset(pos));
 815
 816         LyXFont const & font = text.getFont(buffer_, &par, pos);
 817
 818         int const width = inset.width(bv_, font);
 819         int const inset_x = font.isVisibleRightToLeft()
 820                 ? (cursor.ix() - width) : cursor.ix();
 821
 822         return Box(
 823                 inset_x + inset.scroll(),
 824                 inset_x + width,
 825                 cursor.iy() - inset.ascent(bv_, font),
 826                 cursor.iy() + inset.descent(bv_, font));
 827 }
 828
 829
 830 Inset * BufferView::Pimpl::checkInset(LyXText const & text,
 831                                       LyXCursor const & cursor,
 832                                       int & x, int & y) const
 833 {
 834         pos_type const pos(cursor.pos());
 835         Paragraph /*const*/ & par(*cursor.par());
 836
 837         if (pos >= par.size() || !par.isInset(pos)) {
 838                 return 0;
 839         }
 840
 841         Inset /*const*/ * inset = par.getInset(pos);
 842
 843         if (!isEditableInset(inset)) {
 844                 return 0;
 845         }
 846
 847         Box b(insetDimensions(text, cursor));
 848
 849         if (!b.contained(x, y)) {
 850                 lyxerr[Debug::GUI] << "Missed inset at x,y " << x << "," << y
 851                         << " box " << b << endl;
 852                 return 0;
 853         }
 854
 855         text.setCursor(bv_, &par, pos, true);
 856
 857         x -= b.x1;
 858         // The origin of an inset is on the baseline
 859         y -= text.cursor.iy();
 860
 861         return inset;
 862 }
 863
 864
 865 Inset * BufferView::Pimpl::checkInsetHit(LyXText * text, int & x, int & y)
 866 {
 867         int y_tmp = y + text->first_y;
 868
 869         LyXCursor cursor;
 870         text->setCursorFromCoordinates(bv_, cursor, x, y_tmp);
 871
 872         Inset * inset = checkInset(*text, cursor, x, y_tmp);
 873
 874         if (inset) {
 875                 y = y_tmp;
 876                 return inset;
 877         }
 878
 879         // look at previous position
 880         if (cursor.pos() == 0) {
 881                 return 0;
 882         }
 883
 884         // move back one
 885         text->setCursor(bv_, cursor, cursor.par(), cursor.pos() - 1, true);
 886
 887         inset = checkInset(*text, cursor, x, y_tmp);
 888         if (inset) {
 889                 y = y_tmp;
 890         }
 891         return inset;
 892 }
 893
 894
 895 void BufferView::Pimpl::workAreaResize()
 896 {
 897         static int work_area_width;
 898         static int work_area_height;
 899
 900         bool const widthChange = workarea().workWidth() != work_area_width;
 901         bool const heightChange = workarea().workHeight() != work_area_height;
 902
 903         // update from work area
 904         work_area_width = workarea().workWidth();
 905         work_area_height = workarea().workHeight();
 906
 907         if (buffer_ != 0) {
 908                 if (widthChange) {
 909                         // The visible LyXView need a resize
 910                         resizeCurrentBuffer();
 911
 912                         // Remove all texts from the textcache
 913                         // This is not _really_ what we want to do. What
 914                         // we really want to do is to delete in textcache
 915                         // that does not have a BufferView with matching
 916                         // width, but as long as we have only one BufferView
 917                         // deleting all gives the same result.
 918                         if (lyxerr.debugging())
 919                                 textcache.show(lyxerr, "Expose delete all");
 920                         textcache.clear();
 921                         // FIXME: this is already done in resizeCurrentBuffer() ??
 922                         buffer_->resizeInsets(bv_);
 923                 } else if (heightChange) {
 924                         // fitCursor() ensures we don't jump back
 925                         // to the start of the document on vertical
 926                         // resize
 927                         fitCursor();
 928                 }
 929         }
 930
 931         if (widthChange || heightChange) {
 932                 repaint();
 933         }
 934
 935         // always make sure that the scrollbar is sane.
 936         updateScrollbar();
 937         owner_->updateLayoutChoice();
 938         return;
 939 }
 940
 941
 942 void BufferView::Pimpl::update()
 943 {
 944         if (!bv_->theLockingInset() || !bv_->theLockingInset()->nodraw()) {
 945                 LyXText::text_status st = bv_->text->status();
 946                 screen().update(bv_->text, bv_);
 947                 bool fitc = false;
 948                 while (bv_->text->status() == LyXText::CHANGED_IN_DRAW) {
 949                         bv_->text->fullRebreak(bv_);
 950                         st = LyXText::NEED_MORE_REFRESH;
 951                         bv_->text->setCursor(bv_, bv_->text->cursor.par(),
 952                                              bv_->text->cursor.pos());
 953                         if (bv_->text->selection.set()) {
 954                                 bv_->text->setCursor(bv_, bv_->text->selection.start,
 955                                                      bv_->text->selection.start.par(),
 956                                                      bv_->text->selection.start.pos());
 957                                 bv_->text->setCursor(bv_, bv_->text->selection.end,
 958                                                      bv_->text->selection.end.par(),
 959                                                      bv_->text->selection.end.pos());
 960                         }
 961                         fitc = true;
 962                         bv_->text->status(bv_, st);
 963                         screen().update(bv_->text, bv_);
 964                 }
 965                 // do this here instead of in the screen::update because of
 966                 // the above loop!
 967                 bv_->text->status(bv_, LyXText::UNCHANGED);
 968                 if (fitc)
 969                         fitCursor();
 970         }
 971 }
 972
 973 // Values used when calling update:
 974 // -3 - update
 975 // -2 - update, move sel_cursor if selection, fitcursor
 976 // -1 - update, move sel_cursor if selection, fitcursor, mark dirty
 977 //  0 - update, move sel_cursor if selection, fitcursor
 978 //  1 - update, move sel_cursor if selection, fitcursor, mark dirty
 979 //  3 - update, move sel_cursor if selection
 980 //
 981 // update -
 982 // a simple redraw of the parts that need refresh
 983 //
 984 // move sel_cursor if selection -
 985 // the text's sel_cursor is moved if there is selection is progress
 986 //
 987 // fitcursor -
 988 // fitCursor() is called and the scrollbar updated
 989 //
 990 // mark dirty -
 991 // the buffer is marked dirty.
 992 //
 993 // enum {
 994 //       UPDATE = 0,
 995 //       SELECT = 1,
 996 //       FITCUR = 2,
 997 //       CHANGE = 4
 998 // };
 999 //
1000 // UPDATE_ONLY = UPDATE;
1001 // UPDATE_SELECT = UPDATE | SELECT;
1002 // UPDATE_SELECT_MOVE = UPDATE | SELECT | FITCUR;
1003 // UPDATE_SELECT_MOVE_AFTER_CHANGE = UPDATE | SELECT | FITCUR | CHANGE;
1004 //
1005 // update(-3) -> update(0)         -> update(0) -> update(UPDATE)
1006 // update(-2) -> update(1 + 2)     -> update(3) -> update(SELECT|FITCUR)
1007 // update(-1) -> update(1 + 2 + 4) -> update(7) -> update(SELECT|FITCUR|CHANGE)
1008 // update(1)  -> update(1 + 2 + 4) -> update(7) -> update(SELECT|FITCUR|CHANGE)
1009 // update(3)  -> update(1)         -> update(1) -> update(SELECT)
1010
1011 void BufferView::Pimpl::update(LyXText * text, BufferView::UpdateCodes f)
1012 {
1013         owner_->updateLayoutChoice();
1014
1015         if (!text->selection.set() && (f & SELECT)) {
1016                 text->selection.cursor = text->cursor;
1017         }
1018
1019         text->fullRebreak(bv_);
1020
1021         if (text->inset_owner) {
1022                 text->inset_owner->setUpdateStatus(bv_, InsetText::NONE);
1023                 updateInset(text->inset_owner, false);
1024         } else {
1025                 update();
1026         }
1027
1028         if ((f & FITCUR)) {
1029                 fitCursor();
1030         }
1031
1032         if ((f & CHANGE)) {
1033                 buffer_->markDirty();
1034         }
1035 }
1036
1037
1038 // Callback for cursor timer
1039 void BufferView::Pimpl::cursorToggle()
1040 {
1041         if (!buffer_) {
1042                 cursor_timeout.restart();
1043                 return;
1044         }
1045
1046         /* FIXME */
1047         extern void reapSpellchecker(void);
1048         reapSpellchecker();
1049
1050         if (!bv_->theLockingInset()) {
1051                 screen().cursorToggle(bv_);
1052         } else {
1053                 bv_->theLockingInset()->toggleInsetCursor(bv_);
1054         }
1055
1056         cursor_timeout.restart();
1057 }
1058
1059
1060 bool BufferView::Pimpl::available() const
1061 {
1062         if (buffer_ && bv_->text)
1063                 return true;
1064         return false;
1065 }
1066
1067
1068 void BufferView::Pimpl::beforeChange(LyXText * text)
1069 {
1070         toggleSelection();
1071         text->clearSelection();
1072 }
1073
1074
1075 void BufferView::Pimpl::savePosition(unsigned int i)
1076 {
1077         if (i >= saved_positions_num)
1078                 return;
1079         saved_positions[i] = Position(buffer_->fileName(),
1080                                       bv_->text->cursor.par()->id(),
1081                                       bv_->text->cursor.pos());
1082         if (i > 0) {
1083                 ostringstream str;
1084                 str << _("Saved bookmark") << ' ' << i;
1085                 owner_->message(str.str().c_str());
1086         }
1087 }
1088
1089
1090 void BufferView::Pimpl::restorePosition(unsigned int i)
1091 {
1092         if (i >= saved_positions_num)
1093                 return;
1094
1095         string const fname = saved_positions[i].filename;
1096
1097         beforeChange(bv_->text);
1098
1099         if (fname != buffer_->fileName()) {
1100                 Buffer * b = bufferlist.exists(fname) ?
1101                         bufferlist.getBuffer(fname) :
1102                         bufferlist.loadLyXFile(fname); // don't ask, just load it
1103                 if (b != 0) buffer(b);
1104         }
1105
1106         Paragraph * par = buffer_->getParFromID(saved_positions[i].par_id);
1107         if (!par)
1108                 return;
1109
1110         bv_->text->setCursor(bv_, par,
1111                              min(par->size(), saved_positions[i].par_pos));
1112
1113         update(bv_->text, BufferView::SELECT | BufferView::FITCUR);
1114         if (i > 0) {
1115                 ostringstream str;
1116                 str << _("Moved to bookmark") << ' ' << i;
1117                 owner_->message(str.str().c_str());
1118         }
1119 }
1120
1121
1122 bool BufferView::Pimpl::isSavedPosition(unsigned int i)
1123 {
1124         if (i >= saved_positions_num)
1125                 return false;
1126
1127         return !saved_positions[i].filename.empty();
1128 }
1129
1130
1131 void BufferView::Pimpl::switchKeyMap()
1132 {
1133         if (!lyxrc.rtl_support)
1134                 return;
1135
1136         LyXText * text = bv_->getLyXText();
1137         if (text->real_current_font.isRightToLeft()
1138             && !(bv_->theLockingInset()
1139                  && bv_->theLockingInset()->lyxCode() == Inset::ERT_CODE))
1140         {
1141                 if (owner_->getIntl().keymap == Intl::PRIMARY)
1142                         owner_->getIntl().KeyMapSec();
1143         } else {
1144                 if (owner_->getIntl().keymap == Intl::SECONDARY)
1145                         owner_->getIntl().KeyMapPrim();
1146         }
1147 }
1148
1149
1150 void BufferView::Pimpl::insetUnlock()
1151 {
1152         if (bv_->theLockingInset()) {
1153                 bv_->theLockingInset()->insetUnlock(bv_);
1154                 bv_->theLockingInset(0);
1155                 finishUndo();
1156         }
1157 }
1158
1159
1160 void BufferView::Pimpl::showCursor()
1161 {
1162         if (bv_->theLockingInset())
1163                 bv_->theLockingInset()->showInsetCursor(bv_);
1164         else
1165                 screen().showCursor(bv_->text, bv_);
1166 }
1167
1168
1169 void BufferView::Pimpl::hideCursor()
1170 {
1171         if (!bv_->theLockingInset())
1172                 screen().hideCursor();
1173 }
1174
1175
1176 void BufferView::Pimpl::toggleSelection(bool b)
1177 {
1178         if (bv_->theLockingInset())
1179                 bv_->theLockingInset()->toggleSelection(bv_, b);
1180         screen().toggleSelection(bv_->text, bv_, b);
1181 }
1182
1183
1184 void BufferView::Pimpl::toggleToggle()
1185 {
1186         screen().toggleToggle(bv_->text, bv_);
1187 }
1188
1189
1190 void BufferView::Pimpl::center()
1191 {
1192         LyXText * t = bv_->text;
1193
1194         beforeChange(t);
1195         int const half_height = workarea().workHeight() / 2;
1196         int new_y = 0;
1197
1198         if (t->cursor.y() > half_height) {
1199                 new_y = t->cursor.y() - half_height;
1200         }
1201
1202         // FIXME: can we do this w/o calling screen directly ?
1203         // This updates first_y but means the fitCursor() call
1204         // from the update(FITCUR) doesn't realise that we might
1205         // have moved (e.g. from GOTOPARAGRAPH), so doesn't cause
1206         // the scrollbar to be updated as it should, so we have
1207         // to do it manually. Any operation that does a center()
1208         // and also might have moved first_y must make sure to call
1209         // updateScrollbar() currently. Never mind that this is a
1210         // pretty obfuscated way of updating t->first_y
1211         screen().draw(t, bv_, new_y);
1212
1213         update(t, BufferView::SELECT | BufferView::FITCUR);
1214 }
1215
1216
1217 void BufferView::Pimpl::stuffClipboard(string const & stuff) const
1218 {
1219         workarea().putClipboard(stuff);
1220 }
1221
1222
1223 /*
1224  * Dispatch functions for actions which can be valid for BufferView->text
1225  * and/or InsetText->text!!!
1226  */
1227
1228
1229 Inset * BufferView::Pimpl::getInsetByCode(Inset::Code code)
1230 {
1231 #if 0
1232         LyXCursor cursor = bv_->getLyXText()->cursor;
1233         Buffer::inset_iterator it =
1234                 find_if(Buffer::inset_iterator(
1235                         cursor.par(), cursor.pos()),
1236                         buffer_->inset_iterator_end(),
1237                         lyx::compare_memfun(&Inset::lyxCode, code));
1238         return it != buffer_->inset_iterator_end() ? (*it) : 0;
1239 #else
1240         // Ok, this is a little bit too brute force but it
1241         // should work for now. Better infrastructure is comming. (Lgb)
1242
1243         Buffer * b = bv_->buffer();
1244         LyXCursor cursor = bv_->getLyXText()->cursor;
1245
1246         Buffer::inset_iterator beg = b->inset_iterator_begin();
1247         Buffer::inset_iterator end = b->inset_iterator_end();
1248
1249         bool cursor_par_seen = false;
1250
1251         for (; beg != end; ++beg) {
1252                 if (beg.getPar() == cursor.par()) {
1253                         cursor_par_seen = true;
1254                 }
1255                 if (cursor_par_seen) {
1256                         if (beg.getPar() == cursor.par()
1257                             && beg.getPos() >= cursor.pos()) {
1258                                 break;
1259                         } else if (beg.getPar() != cursor.par()) {
1260                                 break;
1261                         }
1262                 }
1263
1264         }
1265         if (beg != end) {
1266                 // Now find the first inset that matches code.
1267                 for (; beg != end; ++beg) {
1268                         if (beg->lyxCode() == code) {
1269                                 return &(*beg);
1270                         }
1271                 }
1272         }
1273         return 0;
1274 #endif
1275 }
1276
1277
1278 void BufferView::Pimpl::MenuInsertLyXFile(string const & filen)
1279 {
1280         string filename = filen;
1281
1282         if (filename.empty()) {
1283                 // Launch a file browser
1284                 string initpath = lyxrc.document_path;
1285
1286                 if (available()) {
1287                         string const trypath = owner_->buffer()->filePath();
1288                         // If directory is writeable, use this as default.
1289                         if (IsDirWriteable(trypath))
1290                                 initpath = trypath;
1291                 }
1292
1293                 FileDialog fileDlg(bv_->owner(),
1294                                    _("Select LyX document to insert"),
1295                         LFUN_FILE_INSERT,
1296                         make_pair(string(_("Documents|#o#O")),
1297                                   string(lyxrc.document_path)),
1298                         make_pair(string(_("Examples|#E#e")),
1299                                   string(AddPath(system_lyxdir, "examples"))));
1300
1301                 FileDialog::Result result =
1302                         fileDlg.Select(initpath,
1303                                        _("*.lyx| LyX Documents (*.lyx)"));
1304
1305                 if (result.first == FileDialog::Later)
1306                         return;
1307
1308                 filename = result.second;
1309
1310                 // check selected filename
1311                 if (filename.empty()) {
1312                         owner_->message(_("Canceled."));
1313                         return;
1314                 }
1315         }
1316
1317         // get absolute path of file and add ".lyx" to the filename if
1318         // necessary
1319         filename = FileSearch(string(), filename, "lyx");
1320
1321         string const disp_fn(MakeDisplayPath(filename));
1322
1323         ostringstream s1;
1324         s1 << _("Inserting document") << ' '
1325            << disp_fn << " ...";
1326         owner_->message(s1.str().c_str());
1327         bool const res = bv_->insertLyXFile(filename);
1328         if (res) {
1329                 ostringstream str;
1330                 str << _("Document") << ' ' << disp_fn
1331                     << ' ' << _("inserted.");
1332                 owner_->message(str.str().c_str());
1333         } else {
1334                 ostringstream str;
1335                 str << _("Could not insert document") << ' '
1336                     << disp_fn;
1337                 owner_->message(str.str().c_str());
1338         }
1339 }
1340
1341
1342 bool BufferView::Pimpl::dispatch(FuncRequest const & ev)
1343 {
1344         lyxerr[Debug::ACTION] << "BufferView::Pimpl::Dispatch: action["
1345           << ev.action <<"] arg[" << ev.argument << "]" << endl;
1346
1347         LyXTextClass const & tclass = buffer_->params.getLyXTextClass();
1348
1349         switch (ev.action) {
1350
1351         case LFUN_TOC_INSERT:
1352         {
1353                 InsetCommandParams p;
1354                 p.setCmdName("tableofcontents");
1355                 Inset * inset = new InsetTOC(p);
1356                 if (!insertInset(inset, tclass.defaultLayoutName()))
1357                         delete inset;
1358                 break;
1359         }
1360
1361         case LFUN_SCROLL_INSET:
1362                 // this is not handled here as this function is only active
1363                 // if we have a locking_inset and that one is (or contains)
1364                 // a tabular-inset
1365                 break;
1366
1367         case LFUN_INSET_GRAPHICS:
1368         {
1369                 Inset * new_inset = new InsetGraphics;
1370                 if (!insertInset(new_inset)) {
1371                         delete new_inset;
1372                 } else {
1373                         // this is need because you don't use a inset->Edit()
1374                         updateInset(new_inset, true);
1375                         new_inset->edit(bv_);
1376                 }
1377                 break;
1378         }
1379
1380         case LFUN_LAYOUT_COPY:
1381                 bv_->copyEnvironment();
1382                 break;
1383
1384         case LFUN_LAYOUT_PASTE:
1385                 bv_->pasteEnvironment();
1386                 switchKeyMap();
1387                 break;
1388
1389         case LFUN_DEPTH_MIN:
1390                 changeDepth(bv_, bv_->getLyXText(), -1);
1391                 break;
1392
1393         case LFUN_DEPTH_PLUS:
1394                 changeDepth(bv_, bv_->getLyXText(), 1);
1395                 break;
1396
1397         case LFUN_FREE:
1398                 owner_->getDialogs().setUserFreeFont();
1399                 break;
1400
1401         case LFUN_FILE_INSERT:
1402                 MenuInsertLyXFile(ev.argument);
1403                 break;
1404
1405         case LFUN_FILE_INSERT_ASCII_PARA:
1406                 InsertAsciiFile(bv_, ev.argument, true);
1407                 break;
1408
1409         case LFUN_FILE_INSERT_ASCII:
1410                 InsertAsciiFile(bv_, ev.argument, false);
1411                 break;
1412
1413         case LFUN_LANGUAGE:
1414                 lang(bv_, ev.argument);
1415                 switchKeyMap();
1416                 owner_->view_state_changed();
1417                 break;
1418
1419         case LFUN_EMPH:
1420                 emph(bv_);
1421                 owner_->view_state_changed();
1422                 break;
1423
1424         case LFUN_BOLD:
1425                 bold(bv_);
1426                 owner_->view_state_changed();
1427                 break;
1428
1429         case LFUN_NOUN:
1430                 noun(bv_);
1431                 owner_->view_state_changed();
1432                 break;
1433
1434         case LFUN_CODE:
1435                 code(bv_);
1436                 owner_->view_state_changed();
1437                 break;
1438
1439         case LFUN_SANS:
1440                 sans(bv_);
1441                 owner_->view_state_changed();
1442                 break;
1443
1444         case LFUN_ROMAN:
1445                 roman(bv_);
1446                 owner_->view_state_changed();
1447                 break;
1448
1449         case LFUN_DEFAULT:
1450                 styleReset(bv_);
1451                 owner_->view_state_changed();
1452                 break;
1453
1454         case LFUN_UNDERLINE:
1455                 underline(bv_);
1456                 owner_->view_state_changed();
1457                 break;
1458
1459         case LFUN_FONT_SIZE:
1460                 fontSize(bv_, ev.argument);
1461                 owner_->view_state_changed();
1462                 break;
1463
1464         case LFUN_FONT_STATE:
1465                 owner_->getLyXFunc().setMessage(currentState(bv_));
1466                 break;
1467
1468         case LFUN_INSERT_LABEL:
1469                 MenuInsertLabel(bv_, ev.argument);
1470                 break;
1471
1472         case LFUN_REF_INSERT:
1473                 if (ev.argument.empty()) {
1474                         InsetCommandParams p("ref");
1475                         owner_->getDialogs().createRef(p.getAsString());
1476                 } else {
1477                         InsetCommandParams p;
1478                         p.setFromString(ev.argument);
1479
1480                         InsetRef * inset = new InsetRef(p, *buffer_);
1481                         if (!insertInset(inset))
1482                                 delete inset;
1483                         else
1484                                 updateInset(inset, true);
1485                 }
1486                 break;
1487
1488         case LFUN_BOOKMARK_SAVE:
1489                 savePosition(strToUnsignedInt(ev.argument));
1490                 break;
1491
1492         case LFUN_BOOKMARK_GOTO:
1493                 restorePosition(strToUnsignedInt(ev.argument));
1494                 break;
1495
1496         case LFUN_REF_GOTO:
1497         {
1498                 string label = ev.argument;
1499                 if (label.empty()) {
1500                         InsetRef * inset =
1501                                 static_cast<InsetRef*>(getInsetByCode(Inset::REF_CODE));
1502                         if (inset) {
1503                                 label = inset->getContents();
1504                                 savePosition(0);
1505                         }
1506                 }
1507
1508                 if (!label.empty()) {
1509                         //bv_->savePosition(0);
1510                         if (!bv_->gotoLabel(label))
1511                                 Alert::alert(_("Error"),
1512                                            _("Couldn't find this label"),
1513                                            _("in current document."));
1514                 }
1515         }
1516         break;
1517
1518         case LFUN_HTMLURL:
1519         case LFUN_URL:
1520         {
1521                 InsetCommandParams p;
1522                 if (ev.action == LFUN_HTMLURL)
1523                         p.setCmdName("htmlurl");
1524                 else
1525                         p.setCmdName("url");
1526                 owner_->getDialogs().createUrl(p.getAsString());
1527         }
1528         break;
1529
1530         case LFUN_INSERT_URL:
1531         {
1532                 InsetCommandParams p;
1533                 p.setFromString(ev.argument);
1534
1535                 InsetUrl * inset = new InsetUrl(p);
1536                 if (!insertInset(inset))
1537                         delete inset;
1538                 else
1539                         updateInset(inset, true);
1540         }
1541         break;
1542
1543         case LFUN_INSET_CAPTION:
1544         {
1545                 // Do we have a locking inset...
1546                 if (bv_->theLockingInset()) {
1547                         lyxerr << "Locking inset code: "
1548                                << static_cast<int>(bv_->theLockingInset()->lyxCode());
1549                         InsetCaption * new_inset =
1550                                 new InsetCaption(buffer_->params);
1551                         new_inset->setOwner(bv_->theLockingInset());
1552                         new_inset->setAutoBreakRows(true);
1553                         new_inset->setDrawFrame(0, InsetText::LOCKED);
1554                         new_inset->setFrameColor(0, LColor::captionframe);
1555                         if (insertInset(new_inset))
1556                                 new_inset->edit(bv_);
1557                         else
1558                                 delete new_inset;
1559                 }
1560         }
1561         break;
1562
1563         case LFUN_TABULAR_INSERT:
1564         {
1565                 if (ev.argument.empty()) {
1566                         owner_->getDialogs().showTabularCreate();
1567                         break;
1568                 }
1569
1570                 int r = 2;
1571                 int c = 2;
1572                 ::sscanf(ev.argument.c_str(),"%d%d", &r, &c);
1573                 InsetTabular * new_inset =
1574                         new InsetTabular(*buffer_, r, c);
1575                 bool const rtl =
1576                         bv_->getLyXText()->real_current_font.isRightToLeft();
1577                 if (!open_new_inset(new_inset, rtl))
1578                         delete new_inset;
1579         }
1580         break;
1581
1582
1583         // --- accented characters ---------------------------
1584
1585         case LFUN_UMLAUT:
1586         case LFUN_CIRCUMFLEX:
1587         case LFUN_GRAVE:
1588         case LFUN_ACUTE:
1589         case LFUN_TILDE:
1590         case LFUN_CEDILLA:
1591         case LFUN_MACRON:
1592         case LFUN_DOT:
1593         case LFUN_UNDERDOT:
1594         case LFUN_UNDERBAR:
1595         case LFUN_CARON:
1596         case LFUN_SPECIAL_CARON:
1597         case LFUN_BREVE:
1598         case LFUN_TIE:
1599         case LFUN_HUNG_UMLAUT:
1600         case LFUN_CIRCLE:
1601         case LFUN_OGONEK:
1602                 if (ev.argument.empty()) {
1603                         // As always...
1604                         owner_->getLyXFunc().handleKeyFunc(ev.action);
1605                 } else {
1606                         owner_->getLyXFunc().handleKeyFunc(ev.action);
1607                         owner_->getIntl().getTransManager()
1608                                 .TranslateAndInsert(ev.argument[0], bv_->getLyXText());
1609                         update(bv_->getLyXText(),
1610                                BufferView::SELECT
1611                                | BufferView::FITCUR
1612                                | BufferView::CHANGE);
1613                 }
1614                 break;
1615
1616         case LFUN_MATH_MACRO:
1617         case LFUN_MATH_DELIM:
1618         case LFUN_INSERT_MATRIX:
1619         case LFUN_INSERT_MATH:
1620         case LFUN_MATH_IMPORT_SELECTION: // Imports LaTeX from the X selection
1621         case LFUN_MATH_DISPLAY:          // Open or create a displayed math inset
1622         case LFUN_MATH_MODE:             // Open or create an inlined math inset
1623         case LFUN_GREEK:                 // Insert a single greek letter
1624                 mathDispatch(FuncRequest(bv_, ev.action, ev.argument));
1625                 break;
1626
1627         case LFUN_CITATION_INSERT:
1628         {
1629                 InsetCommandParams p;
1630                 p.setFromString(ev.argument);
1631
1632                 InsetCitation * inset = new InsetCitation(p);
1633                 if (!insertInset(inset))
1634                         delete inset;
1635                 else
1636                         updateInset(inset, true);
1637         }
1638         break;
1639
1640         case LFUN_INSERT_BIBTEX:
1641         {
1642                 // ale970405+lasgoutt970425
1643                 // The argument can be up to two tokens separated
1644                 // by a space. The first one is the bibstyle.
1645                 string const db = token(ev.argument, ' ', 0);
1646                 string bibstyle = token(ev.argument, ' ', 1);
1647                 if (bibstyle.empty())
1648                         bibstyle = "plain";
1649
1650                 InsetCommandParams p("BibTeX", db, bibstyle);
1651                 InsetBibtex * inset = new InsetBibtex(p);
1652
1653                 if (insertInset(inset)) {
1654                         if (ev.argument.empty())
1655                                 inset->edit(bv_);
1656                 } else
1657                         delete inset;
1658         }
1659         break;
1660
1661         // BibTeX data bases
1662         case LFUN_BIBDB_ADD:
1663         {
1664                 InsetBibtex * inset =
1665                         static_cast<InsetBibtex*>(getInsetByCode(Inset::BIBTEX_CODE));
1666                 if (inset) {
1667                         inset->addDatabase(ev.argument);
1668                 }
1669         }
1670         break;
1671
1672         case LFUN_BIBDB_DEL:
1673         {
1674                 InsetBibtex * inset =
1675                         static_cast<InsetBibtex*>(getInsetByCode(Inset::BIBTEX_CODE));
1676                 if (inset) {
1677                         inset->delDatabase(ev.argument);
1678                 }
1679         }
1680         break;
1681
1682         case LFUN_BIBTEX_STYLE:
1683         {
1684                 InsetBibtex * inset =
1685                         static_cast<InsetBibtex*>(getInsetByCode(Inset::BIBTEX_CODE));
1686                 if (inset) {
1687                         inset->setOptions(ev.argument);
1688                 }
1689         }
1690         break;
1691
1692         case LFUN_INDEX_INSERT:
1693         {
1694                 string entry = ev.argument;
1695                 if (entry.empty())
1696                         entry = bv_->getLyXText()->getStringToIndex(bv_);
1697
1698                 if (entry.empty()) {
1699                         owner_->getDialogs().createIndex();
1700                         break;
1701                 }
1702
1703                 InsetIndex * inset = new InsetIndex(InsetCommandParams("index", entry));
1704
1705                 if (!insertInset(inset)) {
1706                         delete inset;
1707                 } else {
1708                         updateInset(inset, true);
1709                 }
1710         }
1711         break;
1712
1713         case LFUN_INDEX_PRINT:
1714         {
1715                 InsetCommandParams p("printindex");
1716                 Inset * inset = new InsetPrintIndex(p);
1717                 if (!insertInset(inset, tclass.defaultLayoutName()))
1718                         delete inset;
1719         }
1720         break;
1721
1722         case LFUN_PARENTINSERT:
1723         {
1724                 InsetCommandParams p("lyxparent", ev.argument);
1725                 Inset * inset = new InsetParent(p, *buffer_);
1726                 if (!insertInset(inset, tclass.defaultLayoutName()))
1727                         delete inset;
1728         }
1729
1730         break;
1731
1732         case LFUN_CHILD_INSERT:
1733         {
1734                 InsetInclude::Params p;
1735                 p.cparams.setFromString(ev.argument);
1736                 p.masterFilename_ = buffer_->fileName();
1737
1738                 InsetInclude * inset = new InsetInclude(p);
1739                 if (!insertInset(inset))
1740                         delete inset;
1741                 else {
1742                         updateInset(inset, true);
1743                         bv_->owner()->getDialogs().showInclude(inset);
1744                 }
1745         }
1746         break;
1747
1748         case LFUN_FLOAT_LIST:
1749                 if (floatList.typeExist(ev.argument)) {
1750                         Inset * inset = new InsetFloatList(ev.argument);
1751                         if (!insertInset(inset, tclass.defaultLayoutName()))
1752                                 delete inset;
1753                 } else {
1754                         lyxerr << "Non-existent float type: "
1755                                << ev.argument << endl;
1756                 }
1757                 break;
1758
1759         case LFUN_THESAURUS_ENTRY:
1760         {
1761                 string arg = ev.argument;
1762
1763                 if (arg.empty()) {
1764                         arg = bv_->getLyXText()->selectionAsString(buffer_,
1765                                                                    false);
1766
1767                         // FIXME
1768                         if (arg.size() > 100 || arg.empty()) {
1769                                 // Get word or selection
1770                                 bv_->getLyXText()->selectWordWhenUnderCursor(bv_, LyXText::WHOLE_WORD);
1771                                 arg = bv_->getLyXText()->selectionAsString(buffer_, false);
1772                                 // FIXME: where is getLyXText()->unselect(bv_) ?
1773                         }
1774                 }
1775
1776                 bv_->owner()->getDialogs().showThesaurus(arg);
1777         }
1778                 break;
1779
1780         case LFUN_UNKNOWN_ACTION:
1781                 ev.errorMessage(N_("Unknown function!"));
1782                 break;
1783
1784         default:
1785                 FuncRequest cmd = ev;
1786                 cmd.setView(bv_);
1787                 return bv_->getLyXText()->dispatch(cmd);
1788         } // end of switch
1789
1790         return true;
1791 }
1792
1793
1794 // Open and lock an updatable inset
1795 bool BufferView::Pimpl::open_new_inset(UpdatableInset * new_inset, bool behind)
1796 {
1797         LyXText * lt = bv_->getLyXText();
1798
1799         beforeChange(lt);
1800         finishUndo();
1801         if (!insertInset(new_inset)) {
1802                 delete new_inset;
1803                 return false;
1804         }
1805         new_inset->edit(bv_, !behind);
1806         return true;
1807 }
1808
1809
1810 bool BufferView::Pimpl::insertInset(Inset * inset, string const & lout)
1811 {
1812         // if we are in a locking inset we should try to insert the
1813         // inset there otherwise this is a illegal function now
1814         if (bv_->theLockingInset()) {
1815                 if (bv_->theLockingInset()->insetAllowed(inset))
1816                     return bv_->theLockingInset()->insertInset(bv_, inset);
1817                 return false;
1818         }
1819
1820         // not quite sure if we want this...
1821         setCursorParUndo(bv_);
1822         freezeUndo();
1823
1824         beforeChange(bv_->text);
1825         if (!lout.empty()) {
1826                 update(bv_->text, BufferView::SELECT|BufferView::FITCUR);
1827                 bv_->text->breakParagraph(bv_);
1828                 update(bv_->text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
1829
1830                 if (!bv_->text->cursor.par()->empty()) {
1831                         bv_->text->cursorLeft(bv_);
1832
1833                         bv_->text->breakParagraph(bv_);
1834                         update(bv_->text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
1835                 }
1836
1837                 string lres = lout;
1838                 LyXTextClass const & tclass =
1839                         buffer_->params.getLyXTextClass();
1840                 bool hasLayout = tclass.hasLayout(lres);
1841                 string lay = tclass.defaultLayoutName();
1842
1843                 if (hasLayout != false) {
1844                         // layout found
1845                         lay = lres;
1846                 } else {
1847                         // layout not fount using default
1848                         lay = tclass.defaultLayoutName();
1849                 }
1850
1851                 bv_->text->setLayout(bv_, lay);
1852
1853                 bv_->text->setParagraph(bv_, 0, 0,
1854                                    0, 0,
1855                                    VSpace(VSpace::NONE), VSpace(VSpace::NONE),
1856                                    Spacing(),
1857                                    LYX_ALIGN_LAYOUT,
1858                                    string(),
1859                                    0);
1860                 update(bv_->text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
1861         }
1862
1863         bv_->text->insertInset(bv_, inset);
1864         update(bv_->text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE);
1865
1866         unFreezeUndo();
1867         return true;
1868 }
1869
1870
1871 void BufferView::Pimpl::updateInset(Inset * inset, bool mark_dirty)
1872 {
1873         if (!inset || !available())
1874                 return;
1875
1876         // first check for locking insets
1877         if (bv_->theLockingInset()) {
1878                 if (bv_->theLockingInset() == inset) {
1879                         if (bv_->text->updateInset(bv_, inset)) {
1880                                 update();
1881                                 if (mark_dirty) {
1882                                         buffer_->markDirty();
1883                                 }
1884                                 updateScrollbar();
1885                                 return;
1886                         }
1887                 } else if (bv_->theLockingInset()->updateInsetInInset(bv_, inset)) {
1888                         if (bv_->text->updateInset(bv_,  bv_->theLockingInset())) {
1889                                 update();
1890                                 if (mark_dirty) {
1891                                         buffer_->markDirty();
1892                                 }
1893                                 updateScrollbar();
1894                                 return;
1895                         }
1896                 }
1897         }
1898
1899         // then check if the inset is a top_level inset (has no owner)
1900         // if yes do the update as always otherwise we have to update the
1901         // toplevel inset where this inset is inside
1902         Inset * tl_inset = inset;
1903         while (tl_inset->owner())
1904                 tl_inset = tl_inset->owner();
1905         hideCursor();
1906         if (tl_inset == inset) {
1907                 update(bv_->text, BufferView::UPDATE);
1908                 if (bv_->text->updateInset(bv_, inset)) {
1909                         if (mark_dirty) {
1910                                 update(bv_->text,
1911                                        BufferView::SELECT
1912                                        | BufferView::FITCUR
1913                                        | BufferView::CHANGE);
1914                         } else {
1915                                 update(bv_->text, SELECT);
1916                         }
1917                         return;
1918                 }
1919         } else if (static_cast<UpdatableInset *>(tl_inset)
1920                            ->updateInsetInInset(bv_, inset))
1921         {
1922                 if (bv_->text->updateInset(bv_, tl_inset)) {
1923                         update();
1924                         updateScrollbar();
1925                 }
1926         }
1927 }