src/frontends/qt4/GuiView.cpp

   1 /**
   2  * \file GuiView.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  * \author John Levon
   8  * \author Abdelrazak Younes
   9  * \author Peter Kümmel
  10  *
  11  * Full author contact details are available in file CREDITS.
  12  */
  13
  14 #include <config.h>
  15
  16 #include "GuiView.h"
  17
  18 #include "Dialog.h"
  19 #include "FileDialog.h"
  20 #include "FontLoader.h"
  21 #include "GuiApplication.h"
  22 #include "GuiCommandBuffer.h"
  23 #include "GuiCompleter.h"
  24 #include "GuiWorkArea.h"
  25 #include "GuiKeySymbol.h"
  26 #include "GuiToc.h"
  27 #include "GuiToolbar.h"
  28 #include "LayoutBox.h"
  29 #include "Menus.h"
  30 #include "TocModel.h"
  31
  32 #include "qt_helpers.h"
  33
  34 #include "frontends/alert.h"
  35
  36 #include "buffer_funcs.h"
  37 #include "Buffer.h"
  38 #include "BufferList.h"
  39 #include "BufferParams.h"
  40 #include "BufferView.h"
  41 #include "Converter.h"
  42 #include "Cursor.h"
  43 #include "CutAndPaste.h"
  44 #include "Encoding.h"
  45 #include "ErrorList.h"
  46 #include "Format.h"
  47 #include "FuncStatus.h"
  48 #include "FuncRequest.h"
  49 #include "Intl.h"
  50 #include "Layout.h"
  51 #include "Lexer.h"
  52 #include "LyXAction.h"
  53 #include "LyXFunc.h"
  54 #include "LyX.h"
  55 #include "LyXRC.h"
  56 #include "LyXVC.h"
  57 #include "Paragraph.h"
  58 #include "SpellChecker.h"
  59 #include "TextClass.h"
  60 #include "Text.h"
  61 #include "Toolbars.h"
  62 #include "version.h"
  63
  64 #include "support/convert.h"
  65 #include "support/debug.h"
  66 #include "support/ExceptionMessage.h"
  67 #include "support/FileName.h"
  68 #include "support/filetools.h"
  69 #include "support/gettext.h"
  70 #include "support/filetools.h"
  71 #include "support/ForkedCalls.h"
  72 #include "support/lassert.h"
  73 #include "support/lstrings.h"
  74 #include "support/os.h"
  75 #include "support/Package.h"
  76 #include "support/Path.h"
  77 #include "support/Systemcall.h"
  78 #include "support/Timeout.h"
  79
  80 #include <QAction>
  81 #include <QApplication>
  82 #include <QCloseEvent>
  83 #include <QDebug>
  84 #include <QDesktopWidget>
  85 #include <QDragEnterEvent>
  86 #include <QDropEvent>
  87 #include <QList>
  88 #include <QMenu>
  89 #include <QMenuBar>
  90 #include <QPainter>
  91 #include <QPixmap>
  92 #include <QPixmapCache>
  93 #include <QPoint>
  94 #include <QPushButton>
  95 #include <QSettings>
  96 #include <QShowEvent>
  97 #include <QSplitter>
  98 #include <QStackedWidget>
  99 #include <QStatusBar>
 100 #include <QTimer>
 101 #include <QToolBar>
 102 #include <QUrl>
 103 #include <QScrollBar>
 104
 105 #include <boost/bind.hpp>
 106
 107 #include <sstream>
 108
 109 #ifdef HAVE_SYS_TIME_H
 110 # include <sys/time.h>
 111 #endif
 112 #ifdef HAVE_UNISTD_H
 113 # include <unistd.h>
 114 #endif
 115
 116 using namespace std;
 117 using namespace lyx::support;
 118
 119 namespace lyx {
 120 namespace frontend {
 121
 122 namespace {
 123
 124 class BackgroundWidget : public QWidget
 125 {
 126 public:
 127         BackgroundWidget()
 128         {
 129                 LYXERR(Debug::GUI, "show banner: " << lyxrc.show_banner);
 130                 /// The text to be written on top of the pixmap
 131                 QString const text = lyx_version ?
 132                         qt_("version ") + lyx_version : qt_("unknown version");
 133                 splash_ = getPixmap("images/", "banner", "png");
 134
 135                 QPainter pain(&splash_);
 136                 pain.setPen(QColor(0, 0, 0));
 137                 QFont font;
 138                 // The font used to display the version info
 139                 font.setStyleHint(QFont::SansSerif);
 140                 font.setWeight(QFont::Bold);
 141                 font.setPointSize(int(toqstr(lyxrc.font_sizes[FONT_SIZE_LARGE]).toDouble()));
 142                 pain.setFont(font);
 143                 pain.drawText(260, 15, text);
 144         }
 145
 146         void paintEvent(QPaintEvent *)
 147         {
 148                 int x = (width() - splash_.width()) / 2;
 149                 int y = (height() - splash_.height()) / 2;
 150                 QPainter pain(this);
 151                 pain.drawPixmap(x, y, splash_);
 152         }
 153
 154 private:
 155         QPixmap splash_;
 156 };
 157
 158
 159 /// Toolbar store providing access to individual toolbars by name.
 160 typedef std::map<std::string, GuiToolbar *> ToolbarMap;
 161
 162 typedef boost::shared_ptr<Dialog> DialogPtr;
 163
 164 } // namespace anon
 165
 166
 167 struct GuiView::GuiViewPrivate
 168 {
 169         GuiViewPrivate()
 170                 : current_work_area_(0), current_main_work_area_(0),
 171                 layout_(0), autosave_timeout_(5000),
 172                 in_show_(false)
 173         {
 174                 // hardcode here the platform specific icon size
 175                 smallIconSize = 14;  // scaling problems
 176                 normalIconSize = 20; // ok, default
 177                 bigIconSize = 26;    // better for some math icons
 178
 179                 splitter_ = new QSplitter;
 180                 bg_widget_ = new BackgroundWidget;
 181                 stack_widget_ = new QStackedWidget;
 182                 stack_widget_->addWidget(bg_widget_);
 183                 stack_widget_->addWidget(splitter_);
 184                 setBackground();
 185         }
 186
 187         ~GuiViewPrivate()
 188         {
 189                 delete splitter_;
 190                 delete bg_widget_;
 191                 delete stack_widget_;
 192         }
 193
 194         QMenu * toolBarPopup(GuiView * parent)
 195         {
 196                 // FIXME: translation
 197                 QMenu * menu = new QMenu(parent);
 198                 QActionGroup * iconSizeGroup = new QActionGroup(parent);
 199
 200                 QAction * smallIcons = new QAction(iconSizeGroup);
 201                 smallIcons->setText(qt_("Small-sized icons"));
 202                 smallIcons->setCheckable(true);
 203                 QObject::connect(smallIcons, SIGNAL(triggered()),
 204                         parent, SLOT(smallSizedIcons()));
 205                 menu->addAction(smallIcons);
 206
 207                 QAction * normalIcons = new QAction(iconSizeGroup);
 208                 normalIcons->setText(qt_("Normal-sized icons"));
 209                 normalIcons->setCheckable(true);
 210                 QObject::connect(normalIcons, SIGNAL(triggered()),
 211                         parent, SLOT(normalSizedIcons()));
 212                 menu->addAction(normalIcons);
 213
 214                 QAction * bigIcons = new QAction(iconSizeGroup);
 215                 bigIcons->setText(qt_("Big-sized icons"));
 216                 bigIcons->setCheckable(true);
 217                 QObject::connect(bigIcons, SIGNAL(triggered()),
 218                         parent, SLOT(bigSizedIcons()));
 219                 menu->addAction(bigIcons);
 220
 221                 unsigned int cur = parent->iconSize().width();
 222                 if ( cur == parent->d.smallIconSize)
 223                         smallIcons->setChecked(true);
 224                 else if (cur == parent->d.normalIconSize)
 225                         normalIcons->setChecked(true);
 226                 else if (cur == parent->d.bigIconSize)
 227                         bigIcons->setChecked(true);
 228
 229                 return menu;
 230         }
 231
 232         void setBackground()
 233         {
 234                 stack_widget_->setCurrentWidget(bg_widget_);
 235                 bg_widget_->setUpdatesEnabled(true);
 236         }
 237
 238         TabWorkArea * tabWorkArea(int i)
 239         {
 240                 return dynamic_cast<TabWorkArea *>(splitter_->widget(i));
 241         }
 242
 243         TabWorkArea * currentTabWorkArea()
 244         {
 245                 if (splitter_->count() == 1)
 246                         // The first TabWorkArea is always the first one, if any.
 247                         return tabWorkArea(0);
 248
 249                 for (int i = 0; i != splitter_->count(); ++i) {
 250                         TabWorkArea * twa = tabWorkArea(i);
 251                         if (current_main_work_area_ == twa->currentWorkArea())
 252                                 return twa;
 253                 }
 254
 255                 // None has the focus so we just take the first one.
 256                 return tabWorkArea(0);
 257         }
 258
 259 public:
 260         GuiWorkArea * current_work_area_;
 261         GuiWorkArea * current_main_work_area_;
 262         QSplitter * splitter_;
 263         QStackedWidget * stack_widget_;
 264         BackgroundWidget * bg_widget_;
 265         /// view's toolbars
 266         ToolbarMap toolbars_;
 267         /// The main layout box.
 268         /**
 269          * \warning Don't Delete! The layout box is actually owned by
 270          * whichever toolbar contains it. All the GuiView class needs is a
 271          * means of accessing it.
 272          *
 273          * FIXME: replace that with a proper model so that we are not limited
 274          * to only one dialog.
 275          */
 276         LayoutBox * layout_;
 277
 278         ///
 279         map<string, DialogPtr> dialogs_;
 280
 281         unsigned int smallIconSize;
 282         unsigned int normalIconSize;
 283         unsigned int bigIconSize;
 284         ///
 285         QTimer statusbar_timer_;
 286         /// auto-saving of buffers
 287         Timeout autosave_timeout_;
 288         /// flag against a race condition due to multiclicks, see bug #1119
 289         bool in_show_;
 290
 291         ///
 292         TocModels toc_models_;
 293 };
 294
 295
 296 GuiView::GuiView(int id)
 297         : d(*new GuiViewPrivate), id_(id), closing_(false)
 298 {
 299         // GuiToolbars *must* be initialised before the menu bar.
 300         normalSizedIcons(); // at least on Mac the default is 32 otherwise, which is huge
 301         constructToolbars();
 302
 303         // set ourself as the current view. This is needed for the menu bar
 304         // filling, at least for the static special menu item on Mac. Otherwise
 305         // they are greyed out.
 306         guiApp->setCurrentView(this);
 307
 308         // Fill up the menu bar.
 309         guiApp->menus().fillMenuBar(menuBar(), this, true);
 310
 311         setCentralWidget(d.stack_widget_);
 312
 313         // Start autosave timer
 314         if (lyxrc.autosave) {
 315                 d.autosave_timeout_.timeout.connect(boost::bind(&GuiView::autoSave, this));
 316                 d.autosave_timeout_.setTimeout(lyxrc.autosave * 1000);
 317                 d.autosave_timeout_.start();
 318         }
 319         connect(&d.statusbar_timer_, SIGNAL(timeout()),
 320                 this, SLOT(clearMessage()));
 321
 322         // We don't want to keep the window in memory if it is closed.
 323         setAttribute(Qt::WA_DeleteOnClose, true);
 324
 325 #if (!defined(Q_WS_WIN) && !defined(Q_WS_MACX))
 326         // assign an icon to main form. We do not do it under Qt/Win or Qt/Mac,
 327         // since the icon is provided in the application bundle.
 328         setWindowIcon(getPixmap("images/", "lyx", "png"));
 329 #endif
 330
 331         // For Drag&Drop.
 332         setAcceptDrops(true);
 333
 334         statusBar()->setSizeGripEnabled(true);
 335
 336         // Forbid too small unresizable window because it can happen
 337         // with some window manager under X11.
 338         setMinimumSize(300, 200);
 339
 340         if (lyxrc.allow_geometry_session) {
 341                 // Now take care of session management.
 342                 if (restoreLayout())
 343                         return;
 344         }
 345
 346         // no session handling, default to a sane size.
 347         setGeometry(50, 50, 690, 510);
 348         initToolbars();
 349
 350         // clear session data if any.
 351         QSettings settings;
 352         settings.remove("views");
 353 }
 354
 355
 356 GuiView::~GuiView()
 357 {
 358         delete &d;
 359 }
 360
 361
 362 void GuiView::saveLayout() const
 363 {
 364         QSettings settings;
 365         settings.beginGroup("views");
 366         settings.beginGroup(QString::number(id_));
 367 #ifdef Q_WS_X11
 368         settings.setValue("pos", pos());
 369         settings.setValue("size", size());
 370 #else
 371         settings.setValue("geometry", saveGeometry());
 372 #endif
 373         settings.setValue("layout", saveState(0));
 374         settings.setValue("icon_size", iconSize());
 375 }
 376
 377
 378 bool GuiView::restoreLayout()
 379 {
 380         QSettings settings;
 381         settings.beginGroup("views");
 382         settings.beginGroup(QString::number(id_));
 383         QString const icon_key = "icon_size";
 384         if (!settings.contains(icon_key))
 385                 return false;
 386
 387         //code below is skipped when when ~/.config/LyX is (re)created
 388         setIconSize(settings.value(icon_key).toSize());
 389 #ifdef Q_WS_X11
 390         QPoint pos = settings.value("pos", QPoint(50, 50)).toPoint();
 391         QSize size = settings.value("size", QSize(690, 510)).toSize();
 392         resize(size);
 393         move(pos);
 394 #else
 395         // Work-around for bug #6034: the window ends up in an undetermined
 396         // state when trying to restore a maximized window when it is
 397         // already maximized.
 398         if (!(windowState() & Qt::WindowMaximized))
 399                 if (!restoreGeometry(settings.value("geometry").toByteArray()))
 400                         setGeometry(50, 50, 690, 510);
 401 #endif
 402         // Make sure layout is correctly oriented.
 403         setLayoutDirection(qApp->layoutDirection());
 404
 405         // Allow the toc and view-source dock widget to be restored if needed.
 406         Dialog * dialog;
 407         if ((dialog = findOrBuild("toc", true)))
 408                 // see bug 5082. At least setup title and enabled state.
 409                 // Visibility will be adjusted by restoreState below.
 410                 dialog->prepareView();
 411         if ((dialog = findOrBuild("view-source", true)))
 412                 dialog->prepareView();
 413
 414         if (!restoreState(settings.value("layout").toByteArray(), 0))
 415                 initToolbars();
 416         updateDialogs();
 417         return true;
 418 }
 419
 420
 421 GuiToolbar * GuiView::toolbar(string const & name)
 422 {
 423         ToolbarMap::iterator it = d.toolbars_.find(name);
 424         if (it != d.toolbars_.end())
 425                 return it->second;
 426
 427         LYXERR(Debug::GUI, "Toolbar::display: no toolbar named " << name);
 428         message(bformat(_("Unknown toolbar \"%1$s\""), from_utf8(name)));
 429         return 0;
 430 }
 431
 432
 433 void GuiView::constructToolbars()
 434 {
 435         ToolbarMap::iterator it = d.toolbars_.begin();
 436         for (; it != d.toolbars_.end(); ++it)
 437                 delete it->second;
 438         d.toolbars_.clear();
 439
 440         // I don't like doing this here, but the standard toolbar
 441         // destroys this object when it's destroyed itself (vfr)
 442         d.layout_ = new LayoutBox(*this);
 443         d.stack_widget_->addWidget(d.layout_);
 444         d.layout_->move(0,0);
 445
 446         // extracts the toolbars from the backend
 447         Toolbars::Infos::iterator cit = guiApp->toolbars().begin();
 448         Toolbars::Infos::iterator end = guiApp->toolbars().end();
 449         for (; cit != end; ++cit)
 450                 d.toolbars_[cit->name] =  new GuiToolbar(*cit, *this);
 451 }
 452
 453
 454 void GuiView::initToolbars()
 455 {
 456         // extracts the toolbars from the backend
 457         Toolbars::Infos::iterator cit = guiApp->toolbars().begin();
 458         Toolbars::Infos::iterator end = guiApp->toolbars().end();
 459         for (; cit != end; ++cit) {
 460                 GuiToolbar * tb = toolbar(cit->name);
 461                 if (!tb)
 462                         continue;
 463                 int const visibility = guiApp->toolbars().defaultVisibility(cit->name);
 464                 bool newline = true;
 465                 tb->setVisible(false);
 466                 tb->setVisibility(visibility);
 467
 468                 if (visibility & Toolbars::TOP) {
 469                         if (newline)
 470                                 addToolBarBreak(Qt::TopToolBarArea);
 471                         addToolBar(Qt::TopToolBarArea, tb);
 472                 }
 473
 474                 if (visibility & Toolbars::BOTTOM) {
 475                         // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 476 #if (QT_VERSION >= 0x040202)
 477                         addToolBarBreak(Qt::BottomToolBarArea);
 478 #endif
 479                         addToolBar(Qt::BottomToolBarArea, tb);
 480                 }
 481
 482                 if (visibility & Toolbars::LEFT) {
 483                         // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 484 #if (QT_VERSION >= 0x040202)
 485                         addToolBarBreak(Qt::LeftToolBarArea);
 486 #endif
 487                         addToolBar(Qt::LeftToolBarArea, tb);
 488                 }
 489
 490                 if (visibility & Toolbars::RIGHT) {
 491                         // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 492 #if (QT_VERSION >= 0x040202)
 493                         addToolBarBreak(Qt::RightToolBarArea);
 494 #endif
 495                         addToolBar(Qt::RightToolBarArea, tb);
 496                 }
 497
 498                 if (visibility & Toolbars::ON)
 499                         tb->setVisible(true);
 500         }
 501 }
 502
 503
 504 TocModels & GuiView::tocModels()
 505 {
 506         return d.toc_models_;
 507 }
 508
 509
 510 void GuiView::setFocus()
 511 {
 512         LYXERR(Debug::DEBUG, "GuiView::setFocus()" << this);
 513         // Make sure LyXFunc points to the correct view.
 514         guiApp->setCurrentView(this);
 515         QMainWindow::setFocus();
 516         if (d.current_work_area_)
 517                 d.current_work_area_->setFocus();
 518 }
 519
 520
 521 QMenu * GuiView::createPopupMenu()
 522 {
 523         return d.toolBarPopup(this);
 524 }
 525
 526
 527 void GuiView::showEvent(QShowEvent * e)
 528 {
 529         LYXERR(Debug::GUI, "Passed Geometry "
 530                 << size().height() << "x" << size().width()
 531                 << "+" << pos().x() << "+" << pos().y());
 532
 533         if (d.splitter_->count() == 0)
 534                 // No work area, switch to the background widget.
 535                 d.setBackground();
 536
 537         QMainWindow::showEvent(e);
 538 }
 539
 540
 541 /** Destroy only all tabbed WorkAreas. Destruction of other WorkAreas
 542  ** is responsibility of the container (e.g., dialog)
 543  **/
 544 void GuiView::closeEvent(QCloseEvent * close_event)
 545 {
 546         LYXERR(Debug::DEBUG, "GuiView::closeEvent()");
 547         closing_ = true;
 548
 549         writeSession();
 550
 551         // it can happen that this event arrives without selecting the view,
 552         // e.g. when clicking the close button on a background window.
 553         setFocus();
 554         if (!closeWorkAreaAll()) {
 555                 closing_ = false;
 556                 close_event->ignore();
 557                 return;
 558         }
 559
 560         // Make sure that nothing will use this to be closed View.
 561         guiApp->unregisterView(this);
 562
 563         if (isFullScreen()) {
 564                 // Switch off fullscreen before closing.
 565                 toggleFullScreen();
 566                 updateDialogs();
 567         }
 568
 569         // Make sure the timer time out will not trigger a statusbar update.
 570         d.statusbar_timer_.stop();
 571
 572         // Saving fullscreen requires additional tweaks in the toolbar code.
 573         // It wouldn't also work under linux natively.
 574         if (lyxrc.allow_geometry_session) {
 575                 // Save this window geometry and layout.
 576                 saveLayout();
 577                 // Then the toolbar private states.
 578                 ToolbarMap::iterator end = d.toolbars_.end();
 579                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
 580                         it->second->saveSession();
 581                 // Now take care of all other dialogs:
 582                 map<string, DialogPtr>::const_iterator it = d.dialogs_.begin();
 583                 for (; it!= d.dialogs_.end(); ++it)
 584                         it->second->saveSession();
 585         }
 586
 587         close_event->accept();
 588 }
 589
 590
 591 void GuiView::dragEnterEvent(QDragEnterEvent * event)
 592 {
 593         if (event->mimeData()->hasUrls())
 594                 event->accept();
 595         /// \todo Ask lyx-devel is this is enough:
 596         /// if (event->mimeData()->hasFormat("text/plain"))
 597         ///     event->acceptProposedAction();
 598 }
 599
 600
 601 void GuiView::dropEvent(QDropEvent * event)
 602 {
 603         QList<QUrl> files = event->mimeData()->urls();
 604         if (files.isEmpty())
 605                 return;
 606
 607         LYXERR(Debug::GUI, "GuiView::dropEvent: got URLs!");
 608         for (int i = 0; i != files.size(); ++i) {
 609                 string const file = os::internal_path(fromqstr(
 610                         files.at(i).toLocalFile()));
 611                 if (!file.empty()) {
 612                         // Asynchronously post the event. DropEvent usually come
 613                         // from the BufferView. But reloading a file might close
 614                         // the BufferView from within its own event handler.
 615                         guiApp->dispatchDelayed(FuncRequest(LFUN_FILE_OPEN, file));
 616                         event->accept();
 617                 }
 618         }
 619 }
 620
 621
 622 void GuiView::message(docstring const & str)
 623 {
 624         if (ForkedProcess::iAmAChild())
 625                 return;
 626
 627         statusBar()->showMessage(toqstr(str));
 628         d.statusbar_timer_.stop();
 629         d.statusbar_timer_.start(3000);
 630 }
 631
 632
 633 void GuiView::smallSizedIcons()
 634 {
 635         setIconSize(QSize(d.smallIconSize, d.smallIconSize));
 636 }
 637
 638
 639 void GuiView::normalSizedIcons()
 640 {
 641         setIconSize(QSize(d.normalIconSize, d.normalIconSize));
 642 }
 643
 644
 645 void GuiView::bigSizedIcons()
 646 {
 647         setIconSize(QSize(d.bigIconSize, d.bigIconSize));
 648 }
 649
 650
 651 void GuiView::clearMessage()
 652 {
 653         if (!hasFocus())
 654                 return;
 655         showMessage();
 656         d.statusbar_timer_.stop();
 657 }
 658
 659
 660 void GuiView::updateWindowTitle(GuiWorkArea * wa)
 661 {
 662         if (wa != d.current_work_area_)
 663                 return;
 664         setWindowTitle(qt_("LyX: ") + wa->windowTitle());
 665         setWindowIconText(wa->windowIconText());
 666 }
 667
 668
 669 void GuiView::on_currentWorkAreaChanged(GuiWorkArea * wa)
 670 {
 671         disconnectBuffer();
 672         disconnectBufferView();
 673         connectBufferView(wa->bufferView());
 674         connectBuffer(wa->bufferView().buffer());
 675         d.current_work_area_ = wa;
 676         QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
 677                 this, SLOT(updateWindowTitle(GuiWorkArea *)));
 678         updateWindowTitle(wa);
 679
 680         structureChanged();
 681
 682         // The document settings needs to be reinitialised.
 683         updateDialog("document", "");
 684
 685         // Buffer-dependent dialogs must be updated. This is done here because
 686         // some dialogs require buffer()->text.
 687         updateDialogs();
 688 }
 689
 690
 691 void GuiView::on_lastWorkAreaRemoved()
 692 {
 693         if (closing_)
 694                 // We already are in a close event. Nothing more to do.
 695                 return;
 696
 697         if (d.splitter_->count() > 1)
 698                 // We have a splitter so don't close anything.
 699                 return;
 700
 701         // Reset and updates the dialogs.
 702         d.toc_models_.reset(0);
 703         updateDialog("document", "");
 704         updateDialogs();
 705
 706         resetWindowTitleAndIconText();
 707
 708         if (lyxrc.open_buffers_in_tabs)
 709                 // Nothing more to do, the window should stay open.
 710                 return;
 711
 712         if (guiApp->viewIds().size() > 1) {
 713                 close();
 714                 return;
 715         }
 716
 717 #ifdef Q_WS_MACX
 718         // On Mac we also close the last window because the application stay
 719         // resident in memory. On other platforms we don't close the last
 720         // window because this would quit the application.
 721         close();
 722 #endif
 723 }
 724
 725
 726 void GuiView::updateStatusBar()
 727 {
 728         // let the user see the explicit message
 729         if (d.statusbar_timer_.isActive())
 730                 return;
 731
 732         showMessage();
 733 }
 734
 735
 736 void GuiView::showMessage()
 737 {
 738         QString msg = toqstr(theGuiApp()->viewStatusMessage());
 739         if (msg.isEmpty()) {
 740                 BufferView const * bv = currentBufferView();
 741                 if (bv)
 742                         msg = toqstr(bv->cursor().currentState());
 743                 else
 744                         msg = qt_("Welcome to LyX!");
 745         }
 746         statusBar()->showMessage(msg);
 747 }
 748
 749
 750 bool GuiView::event(QEvent * e)
 751 {
 752         switch (e->type())
 753         {
 754         // Useful debug code:
 755         //case QEvent::ActivationChange:
 756         //case QEvent::WindowDeactivate:
 757         //case QEvent::Paint:
 758         //case QEvent::Enter:
 759         //case QEvent::Leave:
 760         //case QEvent::HoverEnter:
 761         //case QEvent::HoverLeave:
 762         //case QEvent::HoverMove:
 763         //case QEvent::StatusTip:
 764         //case QEvent::DragEnter:
 765         //case QEvent::DragLeave:
 766         //case QEvent::Drop:
 767         //      break;
 768
 769         case QEvent::WindowActivate: {
 770                 GuiView * old_view = guiApp->currentView();
 771                 if (this == old_view) {
 772                         setFocus();
 773                         return QMainWindow::event(e);
 774                 }
 775                 if (old_view && old_view->currentBufferView()) {
 776                         // save current selection to the selection buffer to allow
 777                         // middle-button paste in this window.
 778                         cap::saveSelection(old_view->currentBufferView()->cursor());
 779                 }
 780                 guiApp->setCurrentView(this);
 781                 if (d.current_work_area_) {
 782                         BufferView & bv = d.current_work_area_->bufferView();
 783                         connectBufferView(bv);
 784                         connectBuffer(bv.buffer());
 785                         // The document structure, name and dialogs might have
 786                         // changed in another view.
 787                         structureChanged();
 788                         // The document settings needs to be reinitialised.
 789                         updateDialog("document", "");
 790                         updateDialogs();
 791                 } else {
 792                         resetWindowTitleAndIconText();
 793                 }
 794                 setFocus();
 795                 return QMainWindow::event(e);
 796         }
 797
 798         case QEvent::ShortcutOverride: {
 799
 800 // See bug 4888
 801 #if (!defined Q_WS_X11) || (QT_VERSION >= 0x040500)
 802                 if (isFullScreen() && menuBar()->isHidden()) {
 803                         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 804                         // FIXME: we should also try to detect special LyX shortcut such as
 805                         // Alt-P and Alt-M. Right now there is a hack in
 806                         // GuiWorkArea::processKeySym() that hides again the menubar for
 807                         // those cases.
 808                         if (ke->modifiers() & Qt::AltModifier && ke->key() != Qt::Key_Alt) {
 809                                 menuBar()->show();
 810                                 return QMainWindow::event(e);
 811                         }
 812                 }
 813 #endif
 814
 815                 if (d.current_work_area_)
 816                         // Nothing special to do.
 817                         return QMainWindow::event(e);
 818
 819                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 820                 // Let Qt handle menu access and the Tab keys to navigate keys to navigate
 821                 // between controls.
 822                 if (ke->modifiers() & Qt::AltModifier || ke->key() == Qt::Key_Tab
 823                         || ke->key() == Qt::Key_Backtab)
 824                         return QMainWindow::event(e);
 825
 826                 // Allow processing of shortcuts that are allowed even when no Buffer
 827                 // is viewed.
 828                 KeySymbol sym;
 829                 setKeySymbol(&sym, ke);
 830                 guiApp->processKeySym(sym, q_key_state(ke->modifiers()));
 831                 e->accept();
 832                 return true;
 833         }
 834
 835         default:
 836                 return QMainWindow::event(e);
 837         }
 838 }
 839
 840 void GuiView::resetWindowTitleAndIconText()
 841 {
 842     setWindowTitle(qt_("LyX"));
 843     setWindowIconText(qt_("LyX"));
 844 }
 845
 846 bool GuiView::focusNextPrevChild(bool /*next*/)
 847 {
 848         setFocus();
 849         return true;
 850 }
 851
 852
 853 void GuiView::setBusy(bool busy)
 854 {
 855         if (d.current_work_area_) {
 856                 d.current_work_area_->setUpdatesEnabled(!busy);
 857                 if (busy)
 858                         d.current_work_area_->stopBlinkingCursor();
 859                 else
 860                         d.current_work_area_->startBlinkingCursor();
 861         }
 862
 863         if (busy)
 864                 QApplication::setOverrideCursor(Qt::WaitCursor);
 865         else
 866                 QApplication::restoreOverrideCursor();
 867 }
 868
 869
 870 GuiWorkArea * GuiView::workArea(Buffer & buffer)
 871 {
 872         if (currentWorkArea()
 873             && &currentWorkArea()->bufferView().buffer() == &buffer)
 874                 return (GuiWorkArea *) currentWorkArea();
 875         if (TabWorkArea * twa = d.currentTabWorkArea())
 876                 return twa->workArea(buffer);
 877         return 0;
 878 }
 879
 880
 881 GuiWorkArea * GuiView::addWorkArea(Buffer & buffer)
 882 {
 883         // Automatically create a TabWorkArea if there are none yet.
 884         TabWorkArea * tab_widget = d.splitter_->count()
 885                 ? d.currentTabWorkArea() : addTabWorkArea();
 886         return tab_widget->addWorkArea(buffer, *this);
 887 }
 888
 889
 890 TabWorkArea * GuiView::addTabWorkArea()
 891 {
 892         TabWorkArea * twa = new TabWorkArea;
 893         QObject::connect(twa, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
 894                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
 895         QObject::connect(twa, SIGNAL(lastWorkAreaRemoved()),
 896                          this, SLOT(on_lastWorkAreaRemoved()));
 897
 898         d.splitter_->addWidget(twa);
 899         d.stack_widget_->setCurrentWidget(d.splitter_);
 900         return twa;
 901 }
 902
 903
 904 GuiWorkArea const * GuiView::currentWorkArea() const
 905 {
 906         return d.current_work_area_;
 907 }
 908
 909
 910 GuiWorkArea * GuiView::currentWorkArea()
 911 {
 912         return d.current_work_area_;
 913 }
 914
 915
 916 GuiWorkArea const * GuiView::currentMainWorkArea() const
 917 {
 918         if (d.currentTabWorkArea() == NULL)
 919                 return NULL;
 920         return d.currentTabWorkArea()->currentWorkArea();
 921 }
 922
 923
 924 GuiWorkArea * GuiView::currentMainWorkArea()
 925 {
 926         if (d.currentTabWorkArea() == NULL)
 927                 return NULL;
 928         return d.currentTabWorkArea()->currentWorkArea();
 929 }
 930
 931
 932 void GuiView::setCurrentWorkArea(GuiWorkArea * wa)
 933 {
 934         LYXERR(Debug::DEBUG, "Setting current wa: " << wa << endl);
 935         if (wa == NULL) {
 936                 d.current_work_area_ = NULL;
 937                 d.setBackground();
 938                 return;
 939         }
 940         GuiWorkArea * old_gwa = theGuiApp()->currentView()->currentWorkArea();
 941         if (old_gwa == wa)
 942                 return;
 943
 944         if (currentBufferView())
 945                 cap::saveSelection(currentBufferView()->cursor());
 946
 947         theGuiApp()->setCurrentView(this);
 948         d.current_work_area_ = wa;
 949         for (int i = 0; i != d.splitter_->count(); ++i) {
 950                 if (d.tabWorkArea(i)->setCurrentWorkArea(wa)) {
 951                         //if (d.current_main_work_area_)
 952                         //      d.current_main_work_area_->setFrameStyle(QFrame::NoFrame);
 953                         d.current_main_work_area_ = wa;
 954                         //d.current_main_work_area_->setFrameStyle(QFrame::Box | QFrame::Plain);
 955                         //d.current_main_work_area_->setLineWidth(2);
 956                         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea() << ", Current main wa: " << currentMainWorkArea());
 957                         return;
 958                 }
 959         }
 960         LYXERR(Debug::DEBUG, "This is not a tabbed wa");
 961         on_currentWorkAreaChanged(wa);
 962         BufferView & bv = wa->bufferView();
 963         bv.cursor().fixIfBroken();
 964         bv.updateMetrics();
 965         wa->setUpdatesEnabled(true);
 966         LYXERR(Debug::DEBUG, "Current wa: " << currentWorkArea() << ", Current main wa: " << currentMainWorkArea());
 967 }
 968
 969
 970 void GuiView::removeWorkArea(GuiWorkArea * wa)
 971 {
 972         LASSERT(wa, return);
 973         if (wa == d.current_work_area_) {
 974                 disconnectBuffer();
 975                 disconnectBufferView();
 976                 d.current_work_area_ = 0;
 977                 d.current_main_work_area_ = 0;
 978         }
 979
 980         bool found_twa = false;
 981         for (int i = 0; i != d.splitter_->count(); ++i) {
 982                 TabWorkArea * twa = d.tabWorkArea(i);
 983                 if (twa->removeWorkArea(wa)) {
 984                         // Found in this tab group, and deleted the GuiWorkArea.
 985                         found_twa = true;
 986                         if (twa->count() != 0) {
 987                                 if (d.current_work_area_ == 0)
 988                                         // This means that we are closing the current GuiWorkArea, so
 989                                         // switch to the next GuiWorkArea in the found TabWorkArea.
 990                                         setCurrentWorkArea(twa->currentWorkArea());
 991                         } else {
 992                                 // No more WorkAreas in this tab group, so delete it.
 993                                 delete twa;
 994                         }
 995                         break;
 996                 }
 997         }
 998
 999         // It is not a tabbed work area (i.e., the search work area), so it
1000         // should be deleted by other means.
1001         LASSERT(found_twa, /* */);
1002
1003         if (d.current_work_area_ == 0) {
1004                 if (d.splitter_->count() != 0) {
1005                         TabWorkArea * twa = d.currentTabWorkArea();
1006                         setCurrentWorkArea(twa->currentWorkArea());
1007                 } else {
1008                         // No more work areas, switch to the background widget.
1009                         setCurrentWorkArea(0);
1010                 }
1011         }
1012 }
1013
1014
1015 LayoutBox * GuiView::getLayoutDialog() const
1016 {
1017         return d.layout_;
1018 }
1019
1020
1021 void GuiView::updateLayoutList()
1022 {
1023         if (d.layout_)
1024                 d.layout_->updateContents(false);
1025 }
1026
1027
1028 void GuiView::updateToolbars()
1029 {
1030         ToolbarMap::iterator end = d.toolbars_.end();
1031         if (d.current_work_area_) {
1032                 bool const math =
1033                         d.current_work_area_->bufferView().cursor().inMathed();
1034                 bool const table =
1035                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
1036                 bool const review =
1037                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
1038                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
1039                 bool const mathmacrotemplate =
1040                         lyx::getStatus(FuncRequest(LFUN_IN_MATHMACROTEMPLATE)).enabled();
1041
1042                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
1043                         it->second->update(math, table, review, mathmacrotemplate);
1044         } else
1045                 for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
1046                         it->second->update(false, false, false, false);
1047 }
1048
1049
1050 void GuiView::setBuffer(Buffer * newBuffer)
1051 {
1052         LYXERR(Debug::DEBUG, "Setting buffer: " << newBuffer << std::endl);
1053         LASSERT(newBuffer, return);
1054         setBusy(true);
1055
1056         GuiWorkArea * wa = workArea(*newBuffer);
1057         if (wa == 0) {
1058                 newBuffer->masterBuffer()->updateLabels();
1059                 wa = addWorkArea(*newBuffer);
1060         } else {
1061                 //Disconnect the old buffer...there's no new one.
1062                 disconnectBuffer();
1063         }
1064         connectBuffer(*newBuffer);
1065         connectBufferView(wa->bufferView());
1066         setCurrentWorkArea(wa);
1067
1068         setBusy(false);
1069 }
1070
1071
1072 void GuiView::connectBuffer(Buffer & buf)
1073 {
1074         buf.setGuiDelegate(this);
1075 }
1076
1077
1078 void GuiView::disconnectBuffer()
1079 {
1080         if (d.current_work_area_)
1081                 d.current_work_area_->bufferView().buffer().setGuiDelegate(0);
1082 }
1083
1084
1085 void GuiView::connectBufferView(BufferView & bv)
1086 {
1087         bv.setGuiDelegate(this);
1088 }
1089
1090
1091 void GuiView::disconnectBufferView()
1092 {
1093         if (d.current_work_area_)
1094                 d.current_work_area_->bufferView().setGuiDelegate(0);
1095 }
1096
1097
1098 void GuiView::errors(string const & error_type, bool from_master)
1099 {
1100         ErrorList & el = from_master ?
1101                 documentBufferView()->buffer().masterBuffer()->errorList(error_type)
1102                 : documentBufferView()->buffer().errorList(error_type);
1103         string data = error_type;
1104         if (from_master)
1105                 data = "from_master|" + error_type;
1106         if (!el.empty())
1107                 showDialog("errorlist", data);
1108 }
1109
1110
1111 void GuiView::updateTocItem(std::string const & type, DocIterator const & dit)
1112 {
1113         d.toc_models_.updateItem(toqstr(type), dit);
1114 }
1115
1116
1117 void GuiView::structureChanged()
1118 {
1119         d.toc_models_.reset(documentBufferView());
1120         // Navigator needs more than a simple update in this case. It needs to be
1121         // rebuilt.
1122         updateDialog("toc", "");
1123 }
1124
1125
1126 void GuiView::updateDialog(string const & name, string const & data)
1127 {
1128         if (!isDialogVisible(name))
1129                 return;
1130
1131         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
1132         if (it == d.dialogs_.end())
1133                 return;
1134
1135         Dialog * const dialog = it->second.get();
1136         if (dialog->isVisibleView())
1137                 dialog->initialiseParams(data);
1138 }
1139
1140
1141 BufferView * GuiView::documentBufferView()
1142 {
1143         return currentMainWorkArea()
1144                 ? &currentMainWorkArea()->bufferView()
1145                 : 0;
1146 }
1147
1148
1149 BufferView const * GuiView::documentBufferView() const
1150 {
1151         return currentMainWorkArea()
1152                 ? &currentMainWorkArea()->bufferView()
1153                 : 0;
1154 }
1155
1156
1157 BufferView * GuiView::currentBufferView()
1158 {
1159         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1160 }
1161
1162
1163 BufferView const * GuiView::currentBufferView() const
1164 {
1165         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1166 }
1167
1168
1169 void GuiView::autoSave()
1170 {
1171         LYXERR(Debug::INFO, "Running autoSave()");
1172
1173         if (documentBufferView())
1174                 documentBufferView()->buffer().autoSave();
1175 }
1176
1177
1178 void GuiView::resetAutosaveTimers()
1179 {
1180         if (lyxrc.autosave)
1181                 d.autosave_timeout_.restart();
1182 }
1183
1184
1185 bool GuiView::getStatus(FuncRequest const & cmd, FuncStatus & flag)
1186 {
1187         bool enable = true;
1188         Buffer * buf = currentBufferView()
1189                 ? &currentBufferView()->buffer() : 0;
1190         Buffer * doc_buffer = documentBufferView()
1191                 ? &(documentBufferView()->buffer()) : 0;
1192
1193         // Check whether we need a buffer
1194         if (!lyxaction.funcHasFlag(cmd.action, LyXAction::NoBuffer) && !buf) {
1195                 // no, exit directly
1196                 flag.message(from_utf8(N_("Command not allowed with"
1197                                     "out any document open")));
1198                 flag.setEnabled(false);
1199                 return true;
1200         }
1201
1202         if (cmd.origin == FuncRequest::TOC) {
1203                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
1204                 FuncStatus fs;
1205                 if (toc->getStatus(documentBufferView()->cursor(), cmd, fs))
1206                         flag |= fs;
1207                 else
1208                         flag.setEnabled(false);
1209                 return true;
1210         }
1211
1212         switch(cmd.action) {
1213         case LFUN_BUFFER_IMPORT:
1214                 break;
1215
1216         case LFUN_BUFFER_RELOAD:
1217                 enable = doc_buffer && !doc_buffer->isUnnamed()
1218                         && doc_buffer->fileName().exists()
1219                         && (!doc_buffer->isClean()
1220                            || doc_buffer->isExternallyModified(Buffer::timestamp_method));
1221                 break;
1222
1223         case LFUN_BUFFER_CHILD_OPEN:
1224                 enable = doc_buffer;
1225                 break;
1226
1227         case LFUN_BUFFER_WRITE:
1228                 enable = doc_buffer && (doc_buffer->isUnnamed() || !doc_buffer->isClean());
1229                 break;
1230
1231         //FIXME: This LFUN should be moved to GuiApplication.
1232         case LFUN_BUFFER_WRITE_ALL: {
1233                 // We enable the command only if there are some modified buffers
1234                 Buffer * first = theBufferList().first();
1235                 enable = false;
1236                 if (!first)
1237                         break;
1238                 Buffer * b = first;
1239                 // We cannot use a for loop as the buffer list is a cycle.
1240                 do {
1241                         if (!b->isClean()) {
1242                                 enable = true;
1243                                 break;
1244                         }
1245                         b = theBufferList().next(b);
1246                 } while (b != first);
1247                 break;
1248         }
1249
1250         case LFUN_BUFFER_WRITE_AS:
1251                 enable = doc_buffer;
1252                 break;
1253
1254         case LFUN_BUFFER_CLOSE:
1255                 enable = doc_buffer;
1256                 break;
1257
1258         case LFUN_BUFFER_CLOSE_ALL:
1259                 enable = theBufferList().last() != theBufferList().first();
1260                 break;
1261
1262         case LFUN_SPLIT_VIEW:
1263                 if (cmd.getArg(0) == "vertical")
1264                         enable = doc_buffer && (d.splitter_->count() == 1 ||
1265                                          d.splitter_->orientation() == Qt::Vertical);
1266                 else
1267                         enable = doc_buffer && (d.splitter_->count() == 1 ||
1268                                          d.splitter_->orientation() == Qt::Horizontal);
1269                 break;
1270
1271         case LFUN_CLOSE_TAB_GROUP:
1272                 enable = d.currentTabWorkArea();
1273                 break;
1274
1275         case LFUN_TOOLBAR_TOGGLE:
1276                 if (GuiToolbar * t = toolbar(cmd.getArg(0)))
1277                         flag.setOnOff(t->isVisible());
1278                 break;
1279
1280         case LFUN_DROP_LAYOUTS_CHOICE:
1281                 enable = buf;
1282                 break;
1283
1284         case LFUN_UI_TOGGLE:
1285                 flag.setOnOff(isFullScreen());
1286                 break;
1287
1288         case LFUN_DIALOG_DISCONNECT_INSET:
1289                 break;
1290
1291         case LFUN_DIALOG_HIDE:
1292                 // FIXME: should we check if the dialog is shown?
1293                 break;
1294
1295         case LFUN_DIALOG_TOGGLE:
1296                 flag.setOnOff(isDialogVisible(cmd.getArg(0)));
1297                 // fall through to set "enable"
1298         case LFUN_DIALOG_SHOW: {
1299                 string const name = cmd.getArg(0);
1300                 if (!doc_buffer)
1301                         enable = name == "aboutlyx"
1302                                 || name == "file" //FIXME: should be removed.
1303                                 || name == "prefs"
1304                                 || name == "texinfo"
1305                                 || name == "compare";
1306                 else if (name == "print")
1307                         enable = doc_buffer->isExportable("dvi")
1308                                 && lyxrc.print_command != "none";
1309                 else if (name == "character" || name == "symbols") {
1310                         if (!buf || buf->isReadonly()
1311                                 || !currentBufferView()->cursor().inTexted())
1312                                 enable = false;
1313                         else {
1314                                 // FIXME we should consider passthru
1315                                 // paragraphs too.
1316                                 Inset const & in = currentBufferView()->cursor().inset();
1317                                 enable = !in.getLayout().isPassThru();
1318                         }
1319                 }
1320                 else if (name == "latexlog")
1321                         enable = FileName(doc_buffer->logName()).isReadableFile();
1322                 else if (name == "spellchecker")
1323                         enable = theSpellChecker() && !doc_buffer->isReadonly();
1324                 else if (name == "vclog")
1325                         enable = doc_buffer->lyxvc().inUse();
1326                 break;
1327         }
1328
1329         case LFUN_DIALOG_UPDATE: {
1330                 string const name = cmd.getArg(0);
1331                 if (!buf)
1332                         enable = name == "prefs";
1333                 break;
1334         }
1335
1336         case LFUN_COMMAND_EXECUTE:
1337         case LFUN_MESSAGE:
1338         case LFUN_MENU_OPEN:
1339                 // Nothing to check.
1340                 break;
1341
1342         case LFUN_COMPLETION_INLINE:
1343                 if (!d.current_work_area_
1344                     || !d.current_work_area_->completer().inlinePossible(
1345                         currentBufferView()->cursor()))
1346                     enable = false;
1347                 break;
1348
1349         case LFUN_COMPLETION_POPUP:
1350                 if (!d.current_work_area_
1351                     || !d.current_work_area_->completer().popupPossible(
1352                         currentBufferView()->cursor()))
1353                     enable = false;
1354                 break;
1355
1356         case LFUN_COMPLETION_COMPLETE:
1357                 if (!d.current_work_area_
1358                         || !d.current_work_area_->completer().inlinePossible(
1359                         currentBufferView()->cursor()))
1360                     enable = false;
1361                 break;
1362
1363         case LFUN_COMPLETION_ACCEPT:
1364                 if (!d.current_work_area_
1365                     || (!d.current_work_area_->completer().popupVisible()
1366                         && !d.current_work_area_->completer().inlineVisible()
1367                         && !d.current_work_area_->completer().completionAvailable()))
1368                         enable = false;
1369                 break;
1370
1371         case LFUN_COMPLETION_CANCEL:
1372                 if (!d.current_work_area_
1373                     || (!d.current_work_area_->completer().popupVisible()
1374                         && !d.current_work_area_->completer().inlineVisible()))
1375                         enable = false;
1376                 break;
1377
1378         case LFUN_BUFFER_ZOOM_OUT:
1379                 enable = doc_buffer && lyxrc.zoom > 10;
1380                 break;
1381
1382         case LFUN_BUFFER_ZOOM_IN:
1383                 enable = doc_buffer;
1384                 break;
1385
1386         case LFUN_BUFFER_NEXT:
1387         case LFUN_BUFFER_PREVIOUS:
1388                 // FIXME: should we check is there is an previous or next buffer?
1389                 break;
1390         case LFUN_BUFFER_SWITCH:
1391                 // toggle on the current buffer, but do not toggle off
1392                 // the other ones (is that a good idea?)
1393                 if (doc_buffer
1394                         && to_utf8(cmd.argument()) == doc_buffer->absFileName())
1395                         flag.setOnOff(true);
1396                 break;
1397
1398         case LFUN_VC_REGISTER:
1399                 enable = doc_buffer && !doc_buffer->lyxvc().inUse();
1400                 break;
1401         case LFUN_VC_CHECK_IN:
1402                 enable = doc_buffer && doc_buffer->lyxvc().checkInEnabled();
1403                 break;
1404         case LFUN_VC_CHECK_OUT:
1405                 enable = doc_buffer && doc_buffer->lyxvc().checkOutEnabled();
1406                 break;
1407         case LFUN_VC_LOCKING_TOGGLE:
1408                 enable = doc_buffer && !doc_buffer->isReadonly()
1409                         && doc_buffer->lyxvc().lockingToggleEnabled();
1410                 flag.setOnOff(enable && !doc_buffer->lyxvc().locker().empty());
1411                 break;
1412         case LFUN_VC_REVERT:
1413                 enable = doc_buffer && doc_buffer->lyxvc().inUse();
1414                 break;
1415         case LFUN_VC_UNDO_LAST:
1416                 enable = doc_buffer && doc_buffer->lyxvc().undoLastEnabled();
1417                 break;
1418         case LFUN_VC_REPO_UPDATE:
1419                 enable = doc_buffer && doc_buffer->lyxvc().inUse();
1420                 break;
1421         case LFUN_VC_COMMAND: {
1422                 if (cmd.argument().empty())
1423                         enable = false;
1424                 if (!doc_buffer && contains(cmd.getArg(0), 'D'))
1425                         enable = false;
1426                 break;
1427         }
1428
1429         case LFUN_SERVER_GOTO_FILE_ROW:
1430                 break;
1431
1432         default:
1433                 return false;
1434         }
1435
1436         if (!enable)
1437                 flag.setEnabled(false);
1438
1439         return true;
1440 }
1441
1442
1443 static FileName selectTemplateFile()
1444 {
1445         FileDialog dlg(qt_("Select template file"));
1446         dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1447         dlg.setButton1(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
1448
1449         FileDialog::Result result = dlg.open(toqstr(lyxrc.template_path),
1450                              QStringList(qt_("LyX Documents (*.lyx)")));
1451
1452         if (result.first == FileDialog::Later)
1453                 return FileName();
1454         if (result.second.isEmpty())
1455                 return FileName();
1456         return FileName(fromqstr(result.second));
1457 }
1458
1459
1460 Buffer * GuiView::loadDocument(FileName const & filename, bool tolastfiles)
1461 {
1462         setBusy(true);
1463
1464         Buffer * newBuffer = checkAndLoadLyXFile(filename);
1465
1466         if (!newBuffer) {
1467                 message(_("Document not loaded."));
1468                 setBusy(false);
1469                 return 0;
1470         }
1471
1472         setBuffer(newBuffer);
1473
1474         // scroll to the position when the file was last closed
1475         if (lyxrc.use_lastfilepos) {
1476                 LastFilePosSection::FilePos filepos =
1477                         theSession().lastFilePos().load(filename);
1478                 documentBufferView()->moveToPosition(filepos.pit, filepos.pos, 0, 0);
1479         }
1480
1481         if (tolastfiles)
1482                 theSession().lastFiles().add(filename);
1483
1484         setBusy(false);
1485         return newBuffer;
1486 }
1487
1488
1489 void GuiView::openDocument(string const & fname)
1490 {
1491         string initpath = lyxrc.document_path;
1492
1493         if (documentBufferView()) {
1494                 string const trypath = documentBufferView()->buffer().filePath();
1495                 // If directory is writeable, use this as default.
1496                 if (FileName(trypath).isDirWritable())
1497                         initpath = trypath;
1498         }
1499
1500         string filename;
1501
1502         if (fname.empty()) {
1503                 FileDialog dlg(qt_("Select document to open"), LFUN_FILE_OPEN);
1504                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1505                 dlg.setButton2(qt_("Examples|#E#e"),
1506                                 toqstr(addPath(package().system_support().absFilename(), "examples")));
1507
1508                 QStringList filter(qt_("LyX Documents (*.lyx)"));
1509                 filter << qt_("LyX-1.3.x Documents (*.lyx13)")
1510                         << qt_("LyX-1.4.x Documents (*.lyx14)")
1511                         << qt_("LyX-1.5.x Documents (*.lyx15)")
1512                         << qt_("LyX-1.6.x Documents (*.lyx16)");
1513                 FileDialog::Result result =
1514                         dlg.open(toqstr(initpath), filter);
1515
1516                 if (result.first == FileDialog::Later)
1517                         return;
1518
1519                 filename = fromqstr(result.second);
1520
1521                 // check selected filename
1522                 if (filename.empty()) {
1523                         message(_("Canceled."));
1524                         return;
1525                 }
1526         } else
1527                 filename = fname;
1528
1529         // get absolute path of file and add ".lyx" to the filename if
1530         // necessary.
1531         FileName const fullname =
1532                         fileSearch(string(), filename, "lyx", support::may_not_exist);
1533         if (!fullname.empty())
1534                 filename = fullname.absFilename();
1535
1536         if (!fullname.onlyPath().isDirectory()) {
1537                 Alert::warning(_("Invalid filename"),
1538                                 bformat(_("The directory in the given path\n%1$s\ndoes not exist."),
1539                                 from_utf8(fullname.absFilename())));
1540                 return;
1541         }
1542         // if the file doesn't exist, let the user create one
1543         if (!fullname.exists()) {
1544                 // the user specifically chose this name. Believe him.
1545                 Buffer * const b = newFile(filename, string(), true);
1546                 if (b)
1547                         setBuffer(b);
1548                 return;
1549         }
1550
1551         docstring const disp_fn = makeDisplayPath(filename);
1552         message(bformat(_("Opening document %1$s..."), disp_fn));
1553
1554         docstring str2;
1555         Buffer * buf = loadDocument(fullname);
1556         if (buf) {
1557                 buf->updateLabels();
1558                 setBuffer(buf);
1559                 buf->errors("Parse");
1560                 str2 = bformat(_("Document %1$s opened."), disp_fn);
1561                 if (buf->lyxvc().inUse())
1562                         str2 += " " + from_utf8(buf->lyxvc().versionString()) +
1563                                 " " + _("Version control detected.");
1564         } else {
1565                 str2 = bformat(_("Could not open document %1$s"), disp_fn);
1566         }
1567         message(str2);
1568 }
1569
1570 // FIXME: clean that
1571 static bool import(GuiView * lv, FileName const & filename,
1572         string const & format, ErrorList & errorList)
1573 {
1574         FileName const lyxfile(support::changeExtension(filename.absFilename(), ".lyx"));
1575
1576         string loader_format;
1577         vector<string> loaders = theConverters().loaders();
1578         if (find(loaders.begin(), loaders.end(), format) == loaders.end()) {
1579                 for (vector<string>::const_iterator it = loaders.begin();
1580                      it != loaders.end(); ++it) {
1581                         if (!theConverters().isReachable(format, *it))
1582                                 continue;
1583
1584                         string const tofile =
1585                                 support::changeExtension(filename.absFilename(),
1586                                 formats.extension(*it));
1587                         if (!theConverters().convert(0, filename, FileName(tofile),
1588                                 filename, format, *it, errorList))
1589                                 return false;
1590                         loader_format = *it;
1591                         break;
1592                 }
1593                 if (loader_format.empty()) {
1594                         frontend::Alert::error(_("Couldn't import file"),
1595                                      bformat(_("No information for importing the format %1$s."),
1596                                          formats.prettyName(format)));
1597                         return false;
1598                 }
1599         } else
1600                 loader_format = format;
1601
1602         if (loader_format == "lyx") {
1603                 Buffer * buf = lv->loadDocument(lyxfile);
1604                 if (!buf)
1605                         return false;
1606                 buf->updateLabels();
1607                 lv->setBuffer(buf);
1608                 buf->errors("Parse");
1609         } else {
1610                 Buffer * const b = newFile(lyxfile.absFilename(), string(), true);
1611                 if (!b)
1612                         return false;
1613                 lv->setBuffer(b);
1614                 bool as_paragraphs = loader_format == "textparagraph";
1615                 string filename2 = (loader_format == format) ? filename.absFilename()
1616                         : support::changeExtension(filename.absFilename(),
1617                                           formats.extension(loader_format));
1618                 lv->currentBufferView()->insertPlaintextFile(FileName(filename2),
1619                         as_paragraphs);
1620                 guiApp->setCurrentView(lv);
1621                 lyx::dispatch(FuncRequest(LFUN_MARK_OFF));
1622         }
1623
1624         return true;
1625 }
1626
1627
1628 void GuiView::importDocument(string const & argument)
1629 {
1630         string format;
1631         string filename = split(argument, format, ' ');
1632
1633         LYXERR(Debug::INFO, format << " file: " << filename);
1634
1635         // need user interaction
1636         if (filename.empty()) {
1637                 string initpath = lyxrc.document_path;
1638                 if (documentBufferView()) {
1639                         string const trypath = documentBufferView()->buffer().filePath();
1640                         // If directory is writeable, use this as default.
1641                         if (FileName(trypath).isDirWritable())
1642                                 initpath = trypath;
1643                 }
1644
1645                 docstring const text = bformat(_("Select %1$s file to import"),
1646                         formats.prettyName(format));
1647
1648                 FileDialog dlg(toqstr(text), LFUN_BUFFER_IMPORT);
1649                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1650                 dlg.setButton2(qt_("Examples|#E#e"),
1651                         toqstr(addPath(package().system_support().absFilename(), "examples")));
1652
1653                 docstring filter = formats.prettyName(format);
1654                 filter += " (*.";
1655                 // FIXME UNICODE
1656                 filter += from_utf8(formats.extension(format));
1657                 filter += ')';
1658
1659                 FileDialog::Result result =
1660                         dlg.open(toqstr(initpath), fileFilters(toqstr(filter)));
1661
1662                 if (result.first == FileDialog::Later)
1663                         return;
1664
1665                 filename = fromqstr(result.second);
1666
1667                 // check selected filename
1668                 if (filename.empty())
1669                         message(_("Canceled."));
1670         }
1671
1672         if (filename.empty())
1673                 return;
1674
1675         // get absolute path of file
1676         FileName const fullname(support::makeAbsPath(filename));
1677
1678         FileName const lyxfile(support::changeExtension(fullname.absFilename(), ".lyx"));
1679
1680         // Check if the document already is open
1681         Buffer * buf = theBufferList().getBuffer(lyxfile);
1682         if (buf) {
1683                 setBuffer(buf);
1684                 if (!closeBuffer()) {
1685                         message(_("Canceled."));
1686                         return;
1687                 }
1688         }
1689
1690         docstring const displaypath = makeDisplayPath(lyxfile.absFilename(), 30);
1691
1692         // if the file exists already, and we didn't do
1693         // -i lyx thefile.lyx, warn
1694         if (lyxfile.exists() && fullname != lyxfile) {
1695
1696                 docstring text = bformat(_("The document %1$s already exists.\n\n"
1697                         "Do you want to overwrite that document?"), displaypath);
1698                 int const ret = Alert::prompt(_("Overwrite document?"),
1699                         text, 0, 1, _("&Overwrite"), _("&Cancel"));
1700
1701                 if (ret == 1) {
1702                         message(_("Canceled."));
1703                         return;
1704                 }
1705         }
1706
1707         message(bformat(_("Importing %1$s..."), displaypath));
1708         ErrorList errorList;
1709         if (import(this, fullname, format, errorList))
1710                 message(_("imported."));
1711         else
1712                 message(_("file not imported!"));
1713
1714         // FIXME (Abdel 12/08/06): Is there a need to display the error list here?
1715 }
1716
1717
1718 void GuiView::newDocument(string const & filename, bool from_template)
1719 {
1720         FileName initpath(lyxrc.document_path);
1721         if (documentBufferView()) {
1722                 FileName const trypath(documentBufferView()->buffer().filePath());
1723                 // If directory is writeable, use this as default.
1724                 if (trypath.isDirWritable())
1725                         initpath = trypath;
1726         }
1727
1728         string templatefile;
1729         if (from_template) {
1730                 templatefile = selectTemplateFile().absFilename();
1731                 if (templatefile.empty())
1732                         return;
1733         }
1734
1735         Buffer * b;
1736         if (filename.empty())
1737                 b = newUnnamedFile(initpath, to_utf8(_("newfile")), templatefile);
1738         else
1739                 b = newFile(filename, templatefile, true);
1740
1741         if (b)
1742                 setBuffer(b);
1743
1744         // If no new document could be created, it is unsure
1745         // whether there is a valid BufferView.
1746         if (currentBufferView())
1747                 // Ensure the cursor is correctly positioned on screen.
1748                 currentBufferView()->showCursor();
1749 }
1750
1751
1752 void GuiView::insertLyXFile(docstring const & fname)
1753 {
1754         BufferView * bv = documentBufferView();
1755         if (!bv)
1756                 return;
1757
1758         // FIXME UNICODE
1759         FileName filename(to_utf8(fname));
1760
1761         if (!filename.empty()) {
1762                 bv->insertLyXFile(filename);
1763                 return;
1764         }
1765
1766         // Launch a file browser
1767         // FIXME UNICODE
1768         string initpath = lyxrc.document_path;
1769         string const trypath = bv->buffer().filePath();
1770         // If directory is writeable, use this as default.
1771         if (FileName(trypath).isDirWritable())
1772                 initpath = trypath;
1773
1774         // FIXME UNICODE
1775         FileDialog dlg(qt_("Select LyX document to insert"), LFUN_FILE_INSERT);
1776         dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1777         dlg.setButton2(qt_("Examples|#E#e"),
1778                 toqstr(addPath(package().system_support().absFilename(),
1779                 "examples")));
1780
1781         FileDialog::Result result = dlg.open(toqstr(initpath),
1782                              QStringList(qt_("LyX Documents (*.lyx)")));
1783
1784         if (result.first == FileDialog::Later)
1785                 return;
1786
1787         // FIXME UNICODE
1788         filename.set(fromqstr(result.second));
1789
1790         // check selected filename
1791         if (filename.empty()) {
1792                 // emit message signal.
1793                 message(_("Canceled."));
1794                 return;
1795         }
1796
1797         bv->insertLyXFile(filename);
1798 }
1799
1800
1801 void GuiView::insertPlaintextFile(docstring const & fname,
1802         bool asParagraph)
1803 {
1804         BufferView * bv = documentBufferView();
1805         if (!bv)
1806                 return;
1807
1808         if (!fname.empty() && !FileName::isAbsolute(to_utf8(fname))) {
1809                 message(_("Absolute filename expected."));
1810                 return;
1811         }
1812
1813         // FIXME UNICODE
1814         FileName filename(to_utf8(fname));
1815
1816         if (!filename.empty()) {
1817                 bv->insertPlaintextFile(filename, asParagraph);
1818                 return;
1819         }
1820
1821         FileDialog dlg(qt_("Select file to insert"), (asParagraph ?
1822                 LFUN_FILE_INSERT_PLAINTEXT_PARA : LFUN_FILE_INSERT_PLAINTEXT));
1823
1824         FileDialog::Result result = dlg.open(toqstr(bv->buffer().filePath()),
1825                 QStringList(qt_("All Files (*)")));
1826
1827         if (result.first == FileDialog::Later)
1828                 return;
1829
1830         // FIXME UNICODE
1831         filename.set(fromqstr(result.second));
1832
1833         // check selected filename
1834         if (filename.empty()) {
1835                 // emit message signal.
1836                 message(_("Canceled."));
1837                 return;
1838         }
1839
1840         bv->insertPlaintextFile(filename, asParagraph);
1841 }
1842
1843
1844 bool GuiView::renameBuffer(Buffer & b, docstring const & newname)
1845 {
1846         FileName fname = b.fileName();
1847         FileName const oldname = fname;
1848
1849         if (!newname.empty()) {
1850                 // FIXME UNICODE
1851                 fname = support::makeAbsPath(to_utf8(newname), oldname.onlyPath().absFilename());
1852         } else {
1853                 // Switch to this Buffer.
1854                 setBuffer(&b);
1855
1856                 // No argument? Ask user through dialog.
1857                 // FIXME UNICODE
1858                 FileDialog dlg(qt_("Choose a filename to save document as"),
1859                                    LFUN_BUFFER_WRITE_AS);
1860                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1861                 dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
1862
1863                 if (!isLyXFilename(fname.absFilename()))
1864                         fname.changeExtension(".lyx");
1865
1866                 FileDialog::Result result =
1867                         dlg.save(toqstr(fname.onlyPath().absFilename()),
1868                                QStringList(qt_("LyX Documents (*.lyx)")),
1869                                      toqstr(fname.onlyFileName()));
1870
1871                 if (result.first == FileDialog::Later)
1872                         return false;
1873
1874                 fname.set(fromqstr(result.second));
1875
1876                 if (fname.empty())
1877                         return false;
1878
1879                 if (!isLyXFilename(fname.absFilename()))
1880                         fname.changeExtension(".lyx");
1881         }
1882
1883         if (FileName(fname).exists()) {
1884                 docstring const file = makeDisplayPath(fname.absFilename(), 30);
1885                 docstring text = bformat(_("The document %1$s already "
1886                                            "exists.\n\nDo you want to "
1887                                            "overwrite that document?"),
1888                                          file);
1889                 int const ret = Alert::prompt(_("Overwrite document?"),
1890                         text, 0, 2, _("&Overwrite"), _("&Rename"), _("&Cancel"));
1891                 switch (ret) {
1892                 case 0: break;
1893                 case 1: return renameBuffer(b, docstring());
1894                 case 2: return false;
1895                 }
1896         }
1897
1898         FileName oldauto = b.getAutosaveFilename();
1899
1900         // Ok, change the name of the buffer
1901         b.setFileName(fname.absFilename());
1902         b.markDirty();
1903         bool unnamed = b.isUnnamed();
1904         b.setUnnamed(false);
1905         b.saveCheckSum(fname);
1906
1907         // bring the autosave file with us, just in case.
1908         b.moveAutosaveFile(oldauto);
1909
1910         if (!saveBuffer(b)) {
1911                 oldauto = b.getAutosaveFilename();
1912                 b.setFileName(oldname.absFilename());
1913                 b.setUnnamed(unnamed);
1914                 b.saveCheckSum(oldname);
1915                 b.moveAutosaveFile(oldauto);
1916                 return false;
1917         }
1918
1919         return true;
1920 }
1921
1922
1923 bool GuiView::saveBuffer(Buffer & b)
1924 {
1925         if (workArea(b) && workArea(b)->inDialogMode())
1926                 return true;
1927
1928         if (b.isUnnamed())
1929                 return renameBuffer(b, docstring());
1930
1931         if (b.save()) {
1932                 theSession().lastFiles().add(b.fileName());
1933                 return true;
1934         }
1935
1936         // Switch to this Buffer.
1937         setBuffer(&b);
1938
1939         // FIXME: we don't tell the user *WHY* the save failed !!
1940         docstring const file = makeDisplayPath(b.absFileName(), 30);
1941         docstring text = bformat(_("The document %1$s could not be saved.\n\n"
1942                                    "Do you want to rename the document and "
1943                                    "try again?"), file);
1944         int const ret = Alert::prompt(_("Rename and save?"),
1945                 text, 0, 2, _("&Rename"), _("&Retry"), _("&Cancel"));
1946         switch (ret) {
1947         case 0:
1948                 if (!renameBuffer(b, docstring()))
1949                         return false;
1950                 break;
1951         case 1:
1952                 break;
1953         case 2:
1954                 return false;
1955         }
1956
1957         return saveBuffer(b);
1958 }
1959
1960
1961 bool GuiView::hideWorkArea(GuiWorkArea * wa)
1962 {
1963         return closeWorkArea(wa, false);
1964 }
1965
1966
1967 bool GuiView::closeWorkArea(GuiWorkArea * wa)
1968 {
1969         Buffer & buf = wa->bufferView().buffer();
1970         return closeWorkArea(wa, !buf.parent());
1971 }
1972
1973
1974 bool GuiView::closeBuffer()
1975 {
1976         GuiWorkArea * wa = currentMainWorkArea();
1977         Buffer & buf = wa->bufferView().buffer();
1978         return wa && closeWorkArea(wa, !buf.parent());
1979 }
1980
1981
1982 void GuiView::writeSession() const {
1983         GuiWorkArea const * active_wa = currentMainWorkArea();
1984         for (int i = 0; i < d.splitter_->count(); ++i) {
1985                 TabWorkArea * twa = d.tabWorkArea(i);
1986                 for (int j = 0; j < twa->count(); ++j) {
1987                         GuiWorkArea * wa = static_cast<GuiWorkArea *>(twa->widget(j));
1988                         Buffer & buf = wa->bufferView().buffer();
1989                         theSession().lastOpened().add(buf.fileName(), wa == active_wa);
1990                 }
1991         }
1992 }
1993
1994
1995 bool GuiView::closeBufferAll()
1996 {
1997         // Close the workareas in all other views
1998         QList<int> const ids = guiApp->viewIds();
1999         for (int i = 0; i != ids.size(); ++i) {
2000                 if (id_ != ids[i] && !guiApp->view(ids[i]).closeWorkAreaAll())
2001                         return false;
2002         }
2003
2004         // Close our own workareas
2005         if (!closeWorkAreaAll())
2006                 return false;
2007
2008         // Now close the hidden buffers. We prevent hidden buffers from being
2009         // dirty, so we can just close them.
2010         theBufferList().closeAll();
2011         return true;
2012 }
2013
2014
2015 bool GuiView::closeWorkAreaAll()
2016 {
2017         setCurrentWorkArea(currentMainWorkArea());
2018
2019         // We might be in a situation that there is still a tabWorkArea, but
2020         // there are no tabs anymore. This can happen when we get here after a
2021         // TabWorkArea::lastWorkAreaRemoved() signal. Therefore we count how
2022         // many TabWorkArea's have no documents anymore.
2023         int empty_twa = 0;
2024
2025         // We have to call count() each time, because it can happen that
2026         // more than one splitter will disappear in one iteration (bug 5998).
2027         for (; d.splitter_->count() > empty_twa; ) {
2028                 TabWorkArea * twa = d.tabWorkArea(empty_twa);
2029
2030                 if (twa->count() == 0)
2031                         ++empty_twa;
2032                 else {
2033                         setCurrentWorkArea(twa->currentWorkArea());
2034                         if (!closeTabWorkArea(twa))
2035                                 return false;
2036                 }
2037         }
2038         return true;
2039 }
2040
2041
2042 bool GuiView::closeWorkArea(GuiWorkArea * wa, bool close_buffer)
2043 {
2044         Buffer & buf = wa->bufferView().buffer();
2045
2046         // If we are in a close_event all children will be closed in some time,
2047         // so no need to do it here. This will ensure that the children end up
2048         // in the session file in the correct order. If we close the master
2049         // buffer, we can close or release the child buffers here too.
2050         if (close_buffer && !closing_) {
2051                 vector<Buffer *> clist = buf.getChildren();
2052                 for (vector<Buffer *>::const_iterator it = clist.begin();
2053                          it != clist.end(); ++it) {
2054                         // If a child is dirty, do not close
2055                         // without user intervention
2056                         //FIXME: should we look in other tabworkareas?
2057                         Buffer * child_buf = *it;
2058                         GuiWorkArea * child_wa = workArea(*child_buf);
2059                         if (child_wa) {
2060                                 if (!closeWorkArea(child_wa, true))
2061                                         return false;
2062                         } else
2063                                 theBufferList().releaseChild(&buf, child_buf);
2064                 }
2065         }
2066         // goto bookmark to update bookmark pit.
2067         //FIXME: we should update only the bookmarks related to this buffer!
2068         LYXERR(Debug::DEBUG, "GuiView::closeBuffer()");
2069         for (size_t i = 0; i < theSession().bookmarks().size(); ++i)
2070                 theLyXFunc().gotoBookmark(i+1, false, false);
2071
2072         // if we are only hiding the buffer and there are multiple views
2073         // of the buffer, then we do not need to ensure a clean buffer.
2074         bool const allow_dirty = inMultiTabs(wa) && !close_buffer;
2075
2076         if (allow_dirty || saveBufferIfNeeded(buf, !close_buffer)) {
2077                 // save in sessions if requested
2078                 // do not save childs if their master
2079                 // is opened as well
2080                 if (!close_buffer)
2081                         removeWorkArea(wa);
2082                 else
2083                         theBufferList().release(&buf);
2084                 return true;
2085         }
2086         return false;
2087 }
2088
2089
2090 bool GuiView::closeTabWorkArea(TabWorkArea * twa)
2091 {
2092         while (twa == d.currentTabWorkArea()) {
2093                 twa->setCurrentIndex(twa->count()-1);
2094
2095                 GuiWorkArea * wa = twa->currentWorkArea();
2096                 Buffer & b = wa->bufferView().buffer();
2097
2098                 // We only want to close the buffer if the same buffer is not visible
2099                 // in another view, and if this is not a child and if we are closing
2100                 // a view (not a tabgroup).
2101                 bool const close_buffer =
2102                         !inMultiViews(wa) && !b.parent() && closing_;
2103
2104                 if (!closeWorkArea(wa, close_buffer))
2105                         return false;
2106         }
2107         return true;
2108 }
2109
2110
2111 bool GuiView::saveBufferIfNeeded(Buffer & buf, bool hiding)
2112 {
2113         if (buf.isClean() || buf.paragraphs().empty())
2114                 return true;
2115
2116         // Switch to this Buffer.
2117         setBuffer(&buf);
2118
2119         docstring file;
2120         // FIXME: Unicode?
2121         if (buf.isUnnamed())
2122                 file = from_utf8(buf.fileName().onlyFileName());
2123         else
2124                 file = buf.fileName().displayName(30);
2125
2126         // Bring this window to top before asking questions.
2127         raise();
2128         activateWindow();
2129
2130         int ret;
2131         if (hiding && buf.isUnnamed()) {
2132                 docstring const text = bformat(_("The document %1$s has not been "
2133                                              "saved yet.\n\nDo you want to save "
2134                                              "the document?"), file);
2135                 ret = Alert::prompt(_("Save new document?"),
2136                         text, 0, 1, _("&Save"), _("&Cancel"));
2137                 if (ret == 1)
2138                         ++ret;
2139         } else {
2140                 docstring const text = bformat(_("The document %1$s has unsaved changes."
2141                         "\n\nDo you want to save the document or discard the changes?"), file);
2142                 ret = Alert::prompt(_("Save changed document?"),
2143                         text, 0, 2, _("&Save"), _("&Discard"), _("&Cancel"));
2144         }
2145
2146         switch (ret) {
2147         case 0:
2148                 if (!saveBuffer(buf))
2149                         return false;
2150                 break;
2151         case 1:
2152                 // if we crash after this we could
2153                 // have no autosave file but I guess
2154                 // this is really improbable (Jug)
2155                 buf.removeAutosaveFile();
2156                 if (hiding)
2157                         // revert all changes
2158                         buf.loadLyXFile(buf.fileName());
2159                 buf.markClean();
2160                 break;
2161         case 2:
2162                 return false;
2163         }
2164         return true;
2165 }
2166
2167
2168 bool GuiView::inMultiTabs(GuiWorkArea * wa)
2169 {
2170         Buffer & buf = wa->bufferView().buffer();
2171
2172         for (int i = 0; i != d.splitter_->count(); ++i) {
2173                 GuiWorkArea * wa_ = d.tabWorkArea(i)->workArea(buf);
2174                 if (wa_ && wa_ != wa)
2175                         return true;
2176         }
2177         return inMultiViews(wa);
2178 }
2179
2180
2181 bool GuiView::inMultiViews(GuiWorkArea * wa)
2182 {
2183         QList<int> const ids = guiApp->viewIds();
2184         Buffer & buf = wa->bufferView().buffer();
2185
2186         int found_twa = 0;
2187         for (int i = 0; i != ids.size() && found_twa <= 1; ++i) {
2188                 if (id_ == ids[i])
2189                         continue;
2190
2191                 if (guiApp->view(ids[i]).workArea(buf))
2192                         return true;
2193         }
2194         return false;
2195 }
2196
2197
2198 void GuiView::gotoNextOrPreviousBuffer(NextOrPrevious np)
2199 {
2200         Buffer * const curbuf = documentBufferView()
2201                 ? &documentBufferView()->buffer() : 0;
2202         Buffer * nextbuf = curbuf;
2203         while (true) {
2204                 if (np == NEXTBUFFER)
2205                         nextbuf = theBufferList().next(nextbuf);
2206                 else
2207                         nextbuf = theBufferList().previous(nextbuf);
2208                 if (nextbuf == curbuf)
2209                         break;
2210                 if (nextbuf == 0) {
2211                         nextbuf = curbuf;
2212                         break;
2213                 }
2214                 if (workArea(*nextbuf))
2215                         break;
2216         }
2217         setBuffer(nextbuf);
2218 }
2219
2220
2221 /// make sure the document is saved
2222 static bool ensureBufferClean(Buffer * buffer)
2223 {
2224         LASSERT(buffer, return false);
2225         if (buffer->isClean() && !buffer->isUnnamed())
2226                 return true;
2227
2228         docstring const file = buffer->fileName().displayName(30);
2229         docstring title;
2230         docstring text;
2231         if (!buffer->isUnnamed()) {
2232                 text = bformat(_("The document %1$s has unsaved "
2233                                              "changes.\n\nDo you want to save "
2234                                              "the document?"), file);
2235                 title = _("Save changed document?");
2236
2237         } else {
2238                 text = bformat(_("The document %1$s has not been "
2239                                              "saved yet.\n\nDo you want to save "
2240                                              "the document?"), file);
2241                 title = _("Save new document?");
2242         }
2243         int const ret = Alert::prompt(title, text, 0, 1, _("&Save"), _("&Cancel"));
2244
2245         if (ret == 0)
2246                 dispatch(FuncRequest(LFUN_BUFFER_WRITE));
2247
2248         return buffer->isClean() && !buffer->isUnnamed();
2249 }
2250
2251
2252 void GuiView::reloadBuffer()
2253 {
2254         Buffer * buf = &documentBufferView()->buffer();
2255         FileName filename = buf->fileName();
2256         Buffer const * master = buf->masterBuffer();
2257         bool const is_child = master != buf;
2258         // The user has already confirmed that the changes, if any, should
2259         // be discarded. So we just release the Buffer and don't call closeBuffer();
2260         theBufferList().release(buf);
2261         buf = loadDocument(filename);
2262         docstring const disp_fn = makeDisplayPath(filename.absFilename());
2263         docstring str;
2264         if (buf) {
2265                 // re-allocate master if necessary
2266                 if (is_child && theBufferList().isLoaded(master)
2267                     && buf->masterBuffer() != master)
2268                         buf->setParent(master);
2269                 buf->updateLabels();
2270                 setBuffer(buf);
2271                 buf->errors("Parse");
2272                 str = bformat(_("Document %1$s reloaded."), disp_fn);
2273         } else {
2274                 str = bformat(_("Could not reload document %1$s"), disp_fn);
2275         }
2276         message(str);
2277 }
2278
2279
2280 void GuiView::dispatchVC(FuncRequest const & cmd)
2281 {
2282         Buffer * buffer = documentBufferView()
2283                 ? &(documentBufferView()->buffer()) : 0;
2284
2285         switch (cmd.action) {
2286         case LFUN_VC_REGISTER:
2287                 if (!buffer || !ensureBufferClean(buffer))
2288                         break;
2289                 if (!buffer->lyxvc().inUse()) {
2290                         if (buffer->lyxvc().registrer())
2291                                 reloadBuffer();
2292                 }
2293                 break;
2294
2295         case LFUN_VC_CHECK_IN:
2296                 if (!buffer || !ensureBufferClean(buffer))
2297                         break;
2298                 if (buffer->lyxvc().inUse() && !buffer->isReadonly()) {
2299                         message(from_utf8(buffer->lyxvc().checkIn()));
2300                         reloadBuffer();
2301                 }
2302                 break;
2303
2304         case LFUN_VC_CHECK_OUT:
2305                 if (!buffer || !ensureBufferClean(buffer))
2306                         break;
2307                 if (buffer->lyxvc().inUse()) {
2308                         message(from_utf8(buffer->lyxvc().checkOut()));
2309                         reloadBuffer();
2310                 }
2311                 break;
2312
2313         case LFUN_VC_LOCKING_TOGGLE:
2314                 LASSERT(buffer, return);
2315                 if (!ensureBufferClean(buffer) || buffer->isReadonly())
2316                         break;
2317                 if (buffer->lyxvc().inUse()) {
2318                         string res = buffer->lyxvc().lockingToggle();
2319                         if (res.empty()) {
2320                                 frontend::Alert::error(_("Revision control error."),
2321                                 _("Error when setting the locking property."));
2322                         } else {
2323                                 message(from_utf8(res));
2324                                 reloadBuffer();
2325                         }
2326                 }
2327                 break;
2328
2329         case LFUN_VC_REVERT:
2330                 LASSERT(buffer, return);
2331                 buffer->lyxvc().revert();
2332                 reloadBuffer();
2333                 break;
2334
2335         case LFUN_VC_UNDO_LAST:
2336                 LASSERT(buffer, return);
2337                 buffer->lyxvc().undoLast();
2338                 reloadBuffer();
2339                 break;
2340
2341         case LFUN_VC_REPO_UPDATE:
2342                 LASSERT(buffer, return);
2343                 if (ensureBufferClean(buffer)) {
2344                         string res = buffer->lyxvc().repoUpdate();
2345                         message(from_utf8(res));
2346                         reloadBuffer();
2347                 }
2348                 break;
2349
2350         case LFUN_VC_COMMAND: {
2351                 string flag = cmd.getArg(0);
2352                 if (buffer && contains(flag, 'R') && !ensureBufferClean(buffer))
2353                         break;
2354                 docstring message;
2355                 if (contains(flag, 'M')) {
2356                         if (!Alert::askForText(message, _("LyX VC: Log Message")))
2357                                 break;
2358                 }
2359                 string path = cmd.getArg(1);
2360                 if (contains(path, "$$p") && buffer)
2361                         path = subst(path, "$$p", buffer->filePath());
2362                 LYXERR(Debug::LYXVC, "Directory: " << path);
2363                 FileName pp(path);
2364                 if (!pp.isReadableDirectory()) {
2365                         lyxerr << _("Directory is not accessible.") << endl;
2366                         break;
2367                 }
2368                 support::PathChanger p(pp);
2369
2370                 string command = cmd.getArg(2);
2371                 if (command.empty())
2372                         break;
2373                 if (buffer) {
2374                         command = subst(command, "$$i", buffer->absFileName());
2375                         command = subst(command, "$$p", buffer->filePath());
2376                 }
2377                 command = subst(command, "$$m", to_utf8(message));
2378                 LYXERR(Debug::LYXVC, "Command: " << command);
2379                 Systemcall one;
2380                 one.startscript(Systemcall::Wait, command);
2381
2382                 if (!buffer)
2383                         break;
2384                 if (contains(flag, 'I'))
2385                         buffer->markDirty();
2386                 if (contains(flag, 'R'))
2387                         reloadBuffer();
2388
2389                 break;
2390                 }
2391         default:
2392                 break;
2393         }
2394 }
2395
2396
2397 void GuiView::openChildDocument(string const & fname)
2398 {
2399         LASSERT(documentBufferView(), return);
2400         Buffer & buffer = documentBufferView()->buffer();
2401         FileName const filename = support::makeAbsPath(fname, buffer.filePath());
2402         documentBufferView()->saveBookmark(false);
2403         Buffer * child = 0;
2404         bool parsed = false;
2405         if (theBufferList().exists(filename)) {
2406                 child = theBufferList().getBuffer(filename);
2407         } else {
2408                 message(bformat(_("Opening child document %1$s..."),
2409                 makeDisplayPath(filename.absFilename())));
2410                 child = loadDocument(filename, false);
2411                 parsed = true;
2412         }
2413         if (!child)
2414                 return;
2415
2416         // Set the parent name of the child document.
2417         // This makes insertion of citations and references in the child work,
2418         // when the target is in the parent or another child document.
2419         child->setParent(&buffer);
2420         child->masterBuffer()->updateLabels();
2421         setBuffer(child);
2422         if (parsed)
2423                 child->errors("Parse");
2424 }
2425
2426
2427 bool GuiView::goToFileRow(string const & argument)
2428 {
2429         string file_name;
2430         int row;
2431         istringstream is(argument);
2432         is >> file_name >> row;
2433         file_name = os::internal_path(file_name);
2434         Buffer * buf = 0;
2435         string const abstmp = package().temp_dir().absFilename();
2436         string const realtmp = package().temp_dir().realPath();
2437         // We have to use os::path_prefix_is() here, instead of
2438         // simply prefixIs(), because the file name comes from
2439         // an external application and may need case adjustment.
2440         if (os::path_prefix_is(file_name, abstmp, os::CASE_ADJUSTED)
2441                 || os::path_prefix_is(file_name, realtmp, os::CASE_ADJUSTED)) {
2442                 // Needed by inverse dvi search. If it is a file
2443                 // in tmpdir, call the apropriated function.
2444                 // If tmpdir is a symlink, we may have the real
2445                 // path passed back, so we correct for that.
2446                 if (!prefixIs(file_name, abstmp))
2447                         file_name = subst(file_name, realtmp, abstmp);
2448                 buf = theBufferList().getBufferFromTmp(file_name);
2449         } else {
2450                 // Must replace extension of the file to be .lyx
2451                 // and get full path
2452                 FileName const s = fileSearch(string(),
2453                                               support::changeExtension(file_name, ".lyx"), "lyx");
2454                 // Either change buffer or load the file
2455                 if (theBufferList().exists(s))
2456                         buf = theBufferList().getBuffer(s);
2457                 else if (s.exists()) {
2458                         buf = loadDocument(s);
2459                         buf->updateLabels();
2460                         buf->errors("Parse");
2461                 } else {
2462                         message(bformat(
2463                                         _("File does not exist: %1$s"),
2464                                         makeDisplayPath(file_name)));
2465                         return false;
2466                 }
2467         }
2468         setBuffer(buf);
2469         documentBufferView()->setCursorFromRow(row);
2470         return true;
2471 }
2472
2473
2474 bool GuiView::dispatch(FuncRequest const & cmd)
2475 {
2476         BufferView * bv = currentBufferView();
2477         // By default we won't need any update.
2478         if (bv)
2479                 bv->cursor().updateFlags(Update::None);
2480
2481         Buffer * doc_buffer = documentBufferView()
2482                 ? &(documentBufferView()->buffer()) : 0;
2483
2484         bool dispatched = true;
2485
2486         if (cmd.origin == FuncRequest::TOC) {
2487                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
2488                 toc->doDispatch(bv->cursor(), cmd);
2489                 return true;
2490         }
2491
2492         switch(cmd.action) {
2493                 case LFUN_BUFFER_CHILD_OPEN:
2494                         openChildDocument(to_utf8(cmd.argument()));
2495                         break;
2496
2497                 case LFUN_BUFFER_IMPORT:
2498                         importDocument(to_utf8(cmd.argument()));
2499                         break;
2500
2501                 case LFUN_BUFFER_SWITCH:
2502                         if (FileName::isAbsolute(to_utf8(cmd.argument()))) {
2503                                 Buffer * buffer =
2504                                         theBufferList().getBuffer(FileName(to_utf8(cmd.argument())));
2505                                 if (buffer)
2506                                         setBuffer(buffer);
2507                                 else
2508                                         message(_("Document not loaded"));
2509                         }
2510                         break;
2511
2512                 case LFUN_BUFFER_NEXT:
2513                         gotoNextOrPreviousBuffer(NEXTBUFFER);
2514                         break;
2515
2516                 case LFUN_BUFFER_PREVIOUS:
2517                         gotoNextOrPreviousBuffer(PREVBUFFER);
2518                         break;
2519
2520                 case LFUN_COMMAND_EXECUTE: {
2521                         bool const show_it = cmd.argument() != "off";
2522                         // FIXME: this is a hack, "minibuffer" should not be
2523                         // hardcoded.
2524                         if (GuiToolbar * t = toolbar("minibuffer")) {
2525                                 t->setVisible(show_it);
2526                                 if (show_it && t->commandBuffer())
2527                                         t->commandBuffer()->setFocus();
2528                         }
2529                         break;
2530                 }
2531                 case LFUN_DROP_LAYOUTS_CHOICE:
2532                         d.layout_->showPopup();
2533                         break;
2534
2535                 case LFUN_MENU_OPEN:
2536                         if (QMenu * menu = guiApp->menus().menu(toqstr(cmd.argument()), *this))
2537                                 menu->exec(QCursor::pos());
2538                         break;
2539
2540                 case LFUN_FILE_INSERT:
2541                         insertLyXFile(cmd.argument());
2542                         break;
2543                 case LFUN_FILE_INSERT_PLAINTEXT_PARA:
2544                         insertPlaintextFile(cmd.argument(), true);
2545                         break;
2546
2547                 case LFUN_FILE_INSERT_PLAINTEXT:
2548                         insertPlaintextFile(cmd.argument(), false);
2549                         break;
2550
2551                 case LFUN_BUFFER_RELOAD: {
2552                         LASSERT(doc_buffer, break);
2553                         docstring const file = makeDisplayPath(doc_buffer->absFileName(), 20);
2554                         docstring text = bformat(_("Any changes will be lost. Are you sure "
2555                                                              "you want to revert to the saved version of the document %1$s?"), file);
2556                         int const ret = Alert::prompt(_("Revert to saved document?"),
2557                                 text, 1, 1, _("&Revert"), _("&Cancel"));
2558
2559                         if (ret == 0)
2560                                 reloadBuffer();
2561                         break;
2562                 }
2563
2564                 case LFUN_BUFFER_WRITE:
2565                         LASSERT(doc_buffer, break);
2566                         saveBuffer(*doc_buffer);
2567                         break;
2568
2569                 case LFUN_BUFFER_WRITE_AS:
2570                         LASSERT(doc_buffer, break);
2571                         renameBuffer(*doc_buffer, cmd.argument());
2572                         break;
2573
2574                 case LFUN_BUFFER_WRITE_ALL: {
2575                         Buffer * first = theBufferList().first();
2576                         if (!first)
2577                                 break;
2578                         message(_("Saving all documents..."));
2579                         // We cannot use a for loop as the buffer list cycles.
2580                         Buffer * b = first;
2581                         do {
2582                                 if (!b->isClean()) {
2583                                         saveBuffer(*b);
2584                                         LYXERR(Debug::ACTION, "Saved " << b->absFileName());
2585                                 }
2586                                 b = theBufferList().next(b);
2587                         } while (b != first);
2588                         message(_("All documents saved."));
2589                         break;
2590                 }
2591
2592                 case LFUN_BUFFER_CLOSE:
2593                         closeBuffer();
2594                         break;
2595
2596                 case LFUN_BUFFER_CLOSE_ALL:
2597                         closeBufferAll();
2598                         break;
2599
2600                 case LFUN_TOOLBAR_TOGGLE: {
2601                         string const name = cmd.getArg(0);
2602                         if (GuiToolbar * t = toolbar(name))
2603                                 t->toggle();
2604                         break;
2605                 }
2606
2607                 case LFUN_DIALOG_UPDATE: {
2608                         string const name = to_utf8(cmd.argument());
2609                         if (currentBufferView()) {
2610                                 Inset * inset = currentBufferView()->editedInset(name);
2611                                 // Can only update a dialog connected to an existing inset
2612                                 if (!inset)
2613                                         break;
2614                                 // FIXME: get rid of this indirection; GuiView ask the inset
2615                                 // if he is kind enough to update itself...
2616                                 FuncRequest fr(LFUN_INSET_DIALOG_UPDATE, cmd.argument());
2617                                 inset->dispatch(currentBufferView()->cursor(), fr);
2618                         } else if (name == "paragraph") {
2619                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
2620                         } else if (name == "prefs" || name == "document") {
2621                                 updateDialog(name, string());
2622                         }
2623                         break;
2624                 }
2625
2626                 case LFUN_DIALOG_TOGGLE: {
2627                         if (isDialogVisible(cmd.getArg(0)))
2628                                 dispatch(FuncRequest(LFUN_DIALOG_HIDE, cmd.argument()));
2629                         else
2630                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, cmd.argument()));
2631                         break;
2632                 }
2633
2634                 case LFUN_DIALOG_DISCONNECT_INSET:
2635                         disconnectDialog(to_utf8(cmd.argument()));
2636                         break;
2637
2638                 case LFUN_DIALOG_HIDE: {
2639                         guiApp->hideDialogs(to_utf8(cmd.argument()), 0);
2640                         break;
2641                 }
2642
2643                 case LFUN_DIALOG_SHOW: {
2644                         string const name = cmd.getArg(0);
2645                         string data = trim(to_utf8(cmd.argument()).substr(name.size()));
2646
2647                         if (name == "character") {
2648                                 data = freefont2string();
2649                                 if (!data.empty())
2650                                         showDialog("character", data);
2651                         } else if (name == "latexlog") {
2652                                 Buffer::LogType type;
2653                                 string const logfile = doc_buffer->logName(&type);
2654                                 switch (type) {
2655                                 case Buffer::latexlog:
2656                                         data = "latex ";
2657                                         break;
2658                                 case Buffer::buildlog:
2659                                         data = "literate ";
2660                                         break;
2661                                 }
2662                                 data += Lexer::quoteString(logfile);
2663                                 showDialog("log", data);
2664                         } else if (name == "vclog") {
2665                                 string const data = "vc " +
2666                                         Lexer::quoteString(doc_buffer->lyxvc().getLogFile());
2667                                 showDialog("log", data);
2668                         } else if (name == "symbols") {
2669                                 data = bv->cursor().getEncoding()->name();
2670                                 if (!data.empty())
2671                                         showDialog("symbols", data);
2672                         // bug 5274
2673                         } else if (name == "prefs" && isFullScreen()) {
2674                                 FuncRequest fr(LFUN_INSET_INSERT, "fullscreen");
2675                                 lfunUiToggle(fr);
2676                                 showDialog("prefs", data);
2677                         } else
2678                                 showDialog(name, data);
2679                         break;
2680                 }
2681
2682                 case LFUN_MESSAGE:
2683                         message(cmd.argument());
2684                         break;
2685
2686                 case LFUN_UI_TOGGLE:
2687                         lfunUiToggle(cmd);
2688                         // Make sure the keyboard focus stays in the work area.
2689                         setFocus();
2690                         break;
2691
2692                 case LFUN_SPLIT_VIEW: {
2693                         LASSERT(doc_buffer, break);
2694                         string const orientation = cmd.getArg(0);
2695                         d.splitter_->setOrientation(orientation == "vertical"
2696                                 ? Qt::Vertical : Qt::Horizontal);
2697                         TabWorkArea * twa = addTabWorkArea();
2698                         GuiWorkArea * wa = twa->addWorkArea(*doc_buffer, *this);
2699                         setCurrentWorkArea(wa);
2700                         break;
2701                 }
2702                 case LFUN_CLOSE_TAB_GROUP:
2703                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
2704                                 closeTabWorkArea(twa);
2705                                 d.current_work_area_ = 0;
2706                                 twa = d.currentTabWorkArea();
2707                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
2708                                 if (twa) {
2709                                         // Make sure the work area is up to date.
2710                                         setCurrentWorkArea(twa->currentWorkArea());
2711                                 } else {
2712                                         setCurrentWorkArea(0);
2713                                 }
2714                         }
2715                         break;
2716
2717                 case LFUN_COMPLETION_INLINE:
2718                         if (d.current_work_area_)
2719                                 d.current_work_area_->completer().showInline();
2720                         break;
2721
2722                 case LFUN_COMPLETION_POPUP:
2723                         if (d.current_work_area_)
2724                                 d.current_work_area_->completer().showPopup();
2725                         break;
2726
2727
2728                 case LFUN_COMPLETION_COMPLETE:
2729                         if (d.current_work_area_)
2730                                 d.current_work_area_->completer().tab();
2731                         break;
2732
2733                 case LFUN_COMPLETION_CANCEL:
2734                         if (d.current_work_area_) {
2735                                 if (d.current_work_area_->completer().popupVisible())
2736                                         d.current_work_area_->completer().hidePopup();
2737                                 else
2738                                         d.current_work_area_->completer().hideInline();
2739                         }
2740                         break;
2741
2742                 case LFUN_COMPLETION_ACCEPT:
2743                         if (d.current_work_area_)
2744                                 d.current_work_area_->completer().activate();
2745                         break;
2746
2747                 case LFUN_BUFFER_ZOOM_IN:
2748                 case LFUN_BUFFER_ZOOM_OUT:
2749                         if (cmd.argument().empty()) {
2750                                 if (cmd.action == LFUN_BUFFER_ZOOM_IN)
2751                                         lyxrc.zoom += 20;
2752                                 else
2753                                         lyxrc.zoom -= 20;
2754                         } else
2755                                 lyxrc.zoom += convert<int>(cmd.argument());
2756
2757                         if (lyxrc.zoom < 10)
2758                                 lyxrc.zoom = 10;
2759
2760                         // The global QPixmapCache is used in GuiPainter to cache text
2761                         // painting so we must reset it.
2762                         QPixmapCache::clear();
2763                         guiApp->fontLoader().update();
2764                         lyx::dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
2765                         break;
2766
2767                 case LFUN_VC_REGISTER:
2768                 case LFUN_VC_CHECK_IN:
2769                 case LFUN_VC_CHECK_OUT:
2770                 case LFUN_VC_REPO_UPDATE:
2771                 case LFUN_VC_LOCKING_TOGGLE:
2772                 case LFUN_VC_REVERT:
2773                 case LFUN_VC_UNDO_LAST:
2774                 case LFUN_VC_COMMAND:
2775                         dispatchVC(cmd);
2776                         break;
2777
2778                 case LFUN_SERVER_GOTO_FILE_ROW:
2779                         goToFileRow(to_utf8(cmd.argument()));
2780                         break;
2781
2782                 default:
2783                         dispatched = false;
2784                         break;
2785         }
2786
2787         // Part of automatic menu appearance feature.
2788         if (isFullScreen()) {
2789                 if (menuBar()->isVisible() && lyxrc.full_screen_menubar)
2790                         menuBar()->hide();
2791                 if (statusBar()->isVisible())
2792                         statusBar()->hide();
2793         }
2794
2795         return dispatched;
2796 }
2797
2798
2799 void GuiView::lfunUiToggle(FuncRequest const & cmd)
2800 {
2801         string const arg = cmd.getArg(0);
2802         if (arg == "scrollbar") {
2803                 // hide() is of no help
2804                 if (d.current_work_area_->verticalScrollBarPolicy() ==
2805                         Qt::ScrollBarAlwaysOff)
2806
2807                         d.current_work_area_->setVerticalScrollBarPolicy(
2808                                 Qt::ScrollBarAsNeeded);
2809                 else
2810                         d.current_work_area_->setVerticalScrollBarPolicy(
2811                                 Qt::ScrollBarAlwaysOff);
2812                 return;
2813         }
2814         if (arg == "statusbar") {
2815                 statusBar()->setVisible(!statusBar()->isVisible());
2816                 return;
2817         }
2818         if (arg == "menubar") {
2819                 menuBar()->setVisible(!menuBar()->isVisible());
2820                 return;
2821         }
2822 #if QT_VERSION >= 0x040300
2823         if (arg == "frame") {
2824                 int l, t, r, b;
2825                 getContentsMargins(&l, &t, &r, &b);
2826                 //are the frames in default state?
2827                 d.current_work_area_->setFrameStyle(QFrame::NoFrame);
2828                 if (l == 0) {
2829                         setContentsMargins(-2, -2, -2, -2);
2830                 } else {
2831                         setContentsMargins(0, 0, 0, 0);
2832                 }
2833                 return;
2834         }
2835 #endif
2836         if (arg == "fullscreen") {
2837                 toggleFullScreen();
2838                 return;
2839         }
2840
2841         message(bformat("LFUN_UI_TOGGLE " + _("%1$s unknown command!"), from_utf8(arg)));
2842 }
2843
2844
2845 void GuiView::toggleFullScreen()
2846 {
2847         if (isFullScreen()) {
2848                 for (int i = 0; i != d.splitter_->count(); ++i)
2849                         d.tabWorkArea(i)->setFullScreen(false);
2850 #if QT_VERSION >= 0x040300
2851                 setContentsMargins(0, 0, 0, 0);
2852 #endif
2853                 setWindowState(windowState() ^ Qt::WindowFullScreen);
2854                 restoreLayout();
2855                 menuBar()->show();
2856                 statusBar()->show();
2857         } else {
2858                 // bug 5274
2859                 hideDialogs("prefs", 0);
2860                 for (int i = 0; i != d.splitter_->count(); ++i)
2861                         d.tabWorkArea(i)->setFullScreen(true);
2862 #if QT_VERSION >= 0x040300
2863                 setContentsMargins(-2, -2, -2, -2);
2864 #endif
2865                 saveLayout();
2866                 setWindowState(windowState() ^ Qt::WindowFullScreen);
2867                 statusBar()->hide();
2868                 if (lyxrc.full_screen_menubar)
2869                         menuBar()->hide();
2870                 if (lyxrc.full_screen_toolbars) {
2871                         ToolbarMap::iterator end = d.toolbars_.end();
2872                         for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
2873                                 it->second->hide();
2874                 }
2875         }
2876
2877         // give dialogs like the TOC a chance to adapt
2878         updateDialogs();
2879 }
2880
2881
2882 Buffer const * GuiView::updateInset(Inset const * inset)
2883 {
2884         if (!d.current_work_area_)
2885                 return 0;
2886
2887         if (inset)
2888                 d.current_work_area_->scheduleRedraw();
2889
2890         return &d.current_work_area_->bufferView().buffer();
2891 }
2892
2893
2894 void GuiView::restartCursor()
2895 {
2896         /* When we move around, or type, it's nice to be able to see
2897          * the cursor immediately after the keypress.
2898          */
2899         if (d.current_work_area_)
2900                 d.current_work_area_->startBlinkingCursor();
2901
2902         // Take this occasion to update the other GUI elements.
2903         updateDialogs();
2904         updateStatusBar();
2905 }
2906
2907
2908 void GuiView::updateCompletion(Cursor & cur, bool start, bool keep)
2909 {
2910         if (d.current_work_area_)
2911                 d.current_work_area_->completer().updateVisibility(cur, start, keep);
2912 }
2913
2914 namespace {
2915
2916 // This list should be kept in sync with the list of insets in
2917 // src/insets/Inset.cpp.  I.e., if a dialog goes with an inset, the
2918 // dialog should have the same name as the inset.
2919 // Changes should be also recorded in LFUN_DIALOG_SHOW doxygen
2920 // docs in LyXAction.cpp.
2921
2922 char const * const dialognames[] = {
2923 "aboutlyx", "bibitem", "bibtex", "box", "branch", "changes", "character",
2924 "citation", "compare", "document", "errorlist", "ert", "external", "file",
2925 "findreplace", "findreplaceadv", "float", "graphics", "href", "include",
2926 "index", "index_print", "info", "listings", "label", "log", "mathdelimiter",
2927 "mathmatrix", "mathspace", "nomenclature", "nomencl_print", "note",
2928 "paragraph", "phantom", "prefs", "print", "ref", "sendto", "space",
2929 "spellchecker", "symbols", "tabular", "tabularcreate", "thesaurus", "texinfo",
2930 "toc", "view-source", "vspace", "wrap" };
2931
2932 char const * const * const end_dialognames =
2933         dialognames + (sizeof(dialognames) / sizeof(char *));
2934
2935 class cmpCStr {
2936 public:
2937         cmpCStr(char const * name) : name_(name) {}
2938         bool operator()(char const * other) {
2939                 return strcmp(other, name_) == 0;
2940         }
2941 private:
2942         char const * name_;
2943 };
2944
2945
2946 bool isValidName(string const & name)
2947 {
2948         return find_if(dialognames, end_dialognames,
2949                             cmpCStr(name.c_str())) != end_dialognames;
2950 }
2951
2952 } // namespace anon
2953
2954
2955 void GuiView::resetDialogs()
2956 {
2957         // Make sure that no LFUN uses any LyXView.
2958         guiApp->setCurrentView(0);
2959         saveLayout();
2960         menuBar()->clear();
2961         constructToolbars();
2962         guiApp->menus().fillMenuBar(menuBar(), this, false);
2963         d.layout_->updateContents(true);
2964         // Now update controls with current buffer.
2965         guiApp->setCurrentView(this);
2966         restoreLayout();
2967         restartCursor();
2968 }
2969
2970
2971 Dialog * GuiView::findOrBuild(string const & name, bool hide_it)
2972 {
2973         if (!isValidName(name))
2974                 return 0;
2975
2976         map<string, DialogPtr>::iterator it = d.dialogs_.find(name);
2977
2978         if (it != d.dialogs_.end()) {
2979                 if (hide_it)
2980                         it->second->hideView();
2981                 return it->second.get();
2982         }
2983
2984         Dialog * dialog = build(name);
2985         d.dialogs_[name].reset(dialog);
2986         if (lyxrc.allow_geometry_session)
2987                 dialog->restoreSession();
2988         if (hide_it)
2989                 dialog->hideView();
2990         return dialog;
2991 }
2992
2993
2994 void GuiView::showDialog(string const & name, string const & data,
2995         Inset * inset)
2996 {
2997         if (d.in_show_)
2998                 return;
2999
3000         d.in_show_ = true;
3001         try {
3002                 Dialog * dialog = findOrBuild(name, false);
3003                 if (dialog) {
3004                         dialog->showData(data);
3005                         if (inset && currentBufferView())
3006                                 currentBufferView()->editInset(name, inset);
3007                 }
3008         }
3009         catch (ExceptionMessage const & ex) {
3010                 d.in_show_ = false;
3011                 throw ex;
3012         }
3013         d.in_show_ = false;
3014 }
3015
3016
3017 bool GuiView::isDialogVisible(string const & name) const
3018 {
3019         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
3020         if (it == d.dialogs_.end())
3021                 return false;
3022         return it->second.get()->isVisibleView() && !it->second.get()->isClosing();
3023 }
3024
3025
3026 void GuiView::hideDialog(string const & name, Inset * inset)
3027 {
3028         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
3029         if (it == d.dialogs_.end())
3030                 return;
3031
3032         if (inset && currentBufferView()
3033                 && inset != currentBufferView()->editedInset(name))
3034                 return;
3035
3036         Dialog * const dialog = it->second.get();
3037         if (dialog->isVisibleView())
3038                 dialog->hideView();
3039         if (currentBufferView())
3040                 currentBufferView()->editInset(name, 0);
3041 }
3042
3043
3044 void GuiView::disconnectDialog(string const & name)
3045 {
3046         if (!isValidName(name))
3047                 return;
3048         if (currentBufferView())
3049                 currentBufferView()->editInset(name, 0);
3050 }
3051
3052
3053 void GuiView::hideAll() const
3054 {
3055         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
3056         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
3057
3058         for(; it != end; ++it)
3059                 it->second->hideView();
3060 }
3061
3062
3063 void GuiView::updateDialogs()
3064 {
3065         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
3066         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
3067
3068         for(; it != end; ++it) {
3069                 Dialog * dialog = it->second.get();
3070                 if (dialog && dialog->isVisibleView())
3071                         dialog->checkStatus();
3072         }
3073         updateToolbars();
3074         updateLayoutList();
3075 }
3076
3077
3078 // will be replaced by a proper factory...
3079 Dialog * createGuiAbout(GuiView & lv);
3080 Dialog * createGuiBibitem(GuiView & lv);
3081 Dialog * createGuiBibtex(GuiView & lv);
3082 Dialog * createGuiBox(GuiView & lv);
3083 Dialog * createGuiBranch(GuiView & lv);
3084 Dialog * createGuiChanges(GuiView & lv);
3085 Dialog * createGuiCharacter(GuiView & lv);
3086 Dialog * createGuiCitation(GuiView & lv);
3087 Dialog * createGuiCompare(GuiView & lv);
3088 Dialog * createGuiDelimiter(GuiView & lv);
3089 Dialog * createGuiDocument(GuiView & lv);
3090 Dialog * createGuiErrorList(GuiView & lv);
3091 Dialog * createGuiERT(GuiView & lv);
3092 Dialog * createGuiExternal(GuiView & lv);
3093 Dialog * createGuiFloat(GuiView & lv);
3094 Dialog * createGuiGraphics(GuiView & lv);
3095 Dialog * createGuiInclude(GuiView & lv);
3096 Dialog * createGuiIndex(GuiView & lv);
3097 Dialog * createGuiInfo(GuiView & lv);
3098 Dialog * createGuiLabel(GuiView & lv);
3099 Dialog * createGuiListings(GuiView & lv);
3100 Dialog * createGuiLog(GuiView & lv);
3101 Dialog * createGuiMathHSpace(GuiView & lv);
3102 Dialog * createGuiMathMatrix(GuiView & lv);
3103 Dialog * createGuiNomenclature(GuiView & lv);
3104 Dialog * createGuiNote(GuiView & lv);
3105 Dialog * createGuiParagraph(GuiView & lv);
3106 Dialog * createGuiPhantom(GuiView & lv);
3107 Dialog * createGuiPreferences(GuiView & lv);
3108 Dialog * createGuiPrint(GuiView & lv);
3109 Dialog * createGuiPrintindex(GuiView & lv);
3110 Dialog * createGuiPrintNomencl(GuiView & lv);
3111 Dialog * createGuiRef(GuiView & lv);
3112 Dialog * createGuiSearch(GuiView & lv);
3113 Dialog * createGuiSearchAdv(GuiView & lv);
3114 Dialog * createGuiSendTo(GuiView & lv);
3115 Dialog * createGuiShowFile(GuiView & lv);
3116 Dialog * createGuiSpellchecker(GuiView & lv);
3117 Dialog * createGuiSymbols(GuiView & lv);
3118 Dialog * createGuiTabularCreate(GuiView & lv);
3119 Dialog * createGuiTabular(GuiView & lv);
3120 Dialog * createGuiTexInfo(GuiView & lv);
3121 Dialog * createGuiTextHSpace(GuiView & lv);
3122 Dialog * createGuiToc(GuiView & lv);
3123 Dialog * createGuiThesaurus(GuiView & lv);
3124 Dialog * createGuiHyperlink(GuiView & lv);
3125 Dialog * createGuiVSpace(GuiView & lv);
3126 Dialog * createGuiViewSource(GuiView & lv);
3127 Dialog * createGuiWrap(GuiView & lv);
3128
3129
3130 Dialog * GuiView::build(string const & name)
3131 {
3132         LASSERT(isValidName(name), return 0);
3133
3134         if (name == "aboutlyx")
3135                 return createGuiAbout(*this);
3136         if (name == "bibitem")
3137                 return createGuiBibitem(*this);
3138         if (name == "bibtex")
3139                 return createGuiBibtex(*this);
3140         if (name == "box")
3141                 return createGuiBox(*this);
3142         if (name == "branch")
3143                 return createGuiBranch(*this);
3144         if (name == "changes")
3145                 return createGuiChanges(*this);
3146         if (name == "character")
3147                 return createGuiCharacter(*this);
3148         if (name == "citation")
3149                 return createGuiCitation(*this);
3150         if (name == "compare")
3151                 return createGuiCompare(*this);
3152         if (name == "document")
3153                 return createGuiDocument(*this);
3154         if (name == "errorlist")
3155                 return createGuiErrorList(*this);
3156         if (name == "ert")
3157                 return createGuiERT(*this);
3158         if (name == "external")
3159                 return createGuiExternal(*this);
3160         if (name == "file")
3161                 return createGuiShowFile(*this);
3162         if (name == "findreplace")
3163                 return createGuiSearch(*this);
3164         if (name == "findreplaceadv")
3165                 return createGuiSearchAdv(*this);
3166         if (name == "float")
3167                 return createGuiFloat(*this);
3168         if (name == "graphics")
3169                 return createGuiGraphics(*this);
3170         if (name == "href")
3171                 return createGuiHyperlink(*this);
3172         if (name == "include")
3173                 return createGuiInclude(*this);
3174         if (name == "index")
3175                 return createGuiIndex(*this);
3176         if (name == "index_print")
3177                 return createGuiPrintindex(*this);
3178         if (name == "info")
3179                 return createGuiInfo(*this);
3180         if (name == "label")
3181                 return createGuiLabel(*this);
3182         if (name == "listings")
3183                 return createGuiListings(*this);
3184         if (name == "log")
3185                 return createGuiLog(*this);
3186         if (name == "mathdelimiter")
3187                 return createGuiDelimiter(*this);
3188         if (name == "mathspace")
3189                 return createGuiMathHSpace(*this);
3190         if (name == "mathmatrix")
3191                 return createGuiMathMatrix(*this);
3192         if (name == "nomenclature")
3193                 return createGuiNomenclature(*this);
3194         if (name == "nomencl_print")
3195                 return createGuiPrintNomencl(*this);
3196         if (name == "note")
3197                 return createGuiNote(*this);
3198         if (name == "paragraph")
3199                 return createGuiParagraph(*this);
3200         if (name == "phantom")
3201                 return createGuiPhantom(*this);
3202         if (name == "prefs")
3203                 return createGuiPreferences(*this);
3204         if (name == "print")
3205                 return createGuiPrint(*this);
3206         if (name == "ref")
3207                 return createGuiRef(*this);
3208         if (name == "sendto")
3209                 return createGuiSendTo(*this);
3210         if (name == "space")
3211                 return createGuiTextHSpace(*this);
3212         if (name == "spellchecker")
3213                 return createGuiSpellchecker(*this);
3214         if (name == "symbols")
3215                 return createGuiSymbols(*this);
3216         if (name == "tabular")
3217                 return createGuiTabular(*this);
3218         if (name == "tabularcreate")
3219                 return createGuiTabularCreate(*this);
3220         if (name == "texinfo")
3221                 return createGuiTexInfo(*this);
3222         if (name == "thesaurus")
3223                 return createGuiThesaurus(*this);
3224         if (name == "toc")
3225                 return createGuiToc(*this);
3226         if (name == "view-source")
3227                 return createGuiViewSource(*this);
3228         if (name == "vspace")
3229                 return createGuiVSpace(*this);
3230         if (name == "wrap")
3231                 return createGuiWrap(*this);
3232
3233         return 0;
3234 }
3235
3236
3237 } // namespace frontend
3238 } // namespace lyx
3239
3240 #include "moc_GuiView.cpp"