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                 else if (name == "print")
1306                         enable = doc_buffer->isExportable("dvi")
1307                                 && lyxrc.print_command != "none";
1308                 else if (name == "character" || name == "symbols") {
1309                         if (!buf || buf->isReadonly()
1310                                 || !currentBufferView()->cursor().inTexted())
1311                                 enable = false;
1312                         else {
1313                                 // FIXME we should consider passthru
1314                                 // paragraphs too.
1315                                 Inset const & in = currentBufferView()->cursor().inset();
1316                                 enable = !in.getLayout().isPassThru();
1317                         }
1318                 }
1319                 else if (name == "latexlog")
1320                         enable = FileName(doc_buffer->logName()).isReadableFile();
1321                 else if (name == "spellchecker")
1322                         enable = theSpellChecker() && !doc_buffer->isReadonly();
1323                 else if (name == "vclog")
1324                         enable = doc_buffer->lyxvc().inUse();
1325                 break;
1326         }
1327
1328         case LFUN_DIALOG_UPDATE: {
1329                 string const name = cmd.getArg(0);
1330                 if (!buf)
1331                         enable = name == "prefs";
1332                 break;
1333         }
1334
1335         case LFUN_COMMAND_EXECUTE:
1336         case LFUN_MESSAGE:
1337         case LFUN_MENU_OPEN:
1338                 // Nothing to check.
1339                 break;
1340
1341         case LFUN_COMPLETION_INLINE:
1342                 if (!d.current_work_area_
1343                     || !d.current_work_area_->completer().inlinePossible(
1344                         currentBufferView()->cursor()))
1345                     enable = false;
1346                 break;
1347
1348         case LFUN_COMPLETION_POPUP:
1349                 if (!d.current_work_area_
1350                     || !d.current_work_area_->completer().popupPossible(
1351                         currentBufferView()->cursor()))
1352                     enable = false;
1353                 break;
1354
1355         case LFUN_COMPLETION_COMPLETE:
1356                 if (!d.current_work_area_
1357                         || !d.current_work_area_->completer().inlinePossible(
1358                         currentBufferView()->cursor()))
1359                     enable = false;
1360                 break;
1361
1362         case LFUN_COMPLETION_ACCEPT:
1363                 if (!d.current_work_area_
1364                     || (!d.current_work_area_->completer().popupVisible()
1365                         && !d.current_work_area_->completer().inlineVisible()
1366                         && !d.current_work_area_->completer().completionAvailable()))
1367                         enable = false;
1368                 break;
1369
1370         case LFUN_COMPLETION_CANCEL:
1371                 if (!d.current_work_area_
1372                     || (!d.current_work_area_->completer().popupVisible()
1373                         && !d.current_work_area_->completer().inlineVisible()))
1374                         enable = false;
1375                 break;
1376
1377         case LFUN_BUFFER_ZOOM_OUT:
1378                 enable = doc_buffer && lyxrc.zoom > 10;
1379                 break;
1380
1381         case LFUN_BUFFER_ZOOM_IN:
1382                 enable = doc_buffer;
1383                 break;
1384
1385         case LFUN_BUFFER_NEXT:
1386         case LFUN_BUFFER_PREVIOUS:
1387                 // FIXME: should we check is there is an previous or next buffer?
1388                 break;
1389         case LFUN_BUFFER_SWITCH:
1390                 // toggle on the current buffer, but do not toggle off
1391                 // the other ones (is that a good idea?)
1392                 if (doc_buffer
1393                         && to_utf8(cmd.argument()) == doc_buffer->absFileName())
1394                         flag.setOnOff(true);
1395                 break;
1396
1397         case LFUN_VC_REGISTER:
1398                 enable = doc_buffer && !doc_buffer->lyxvc().inUse();
1399                 break;
1400         case LFUN_VC_CHECK_IN:
1401                 enable = doc_buffer && doc_buffer->lyxvc().checkInEnabled();
1402                 break;
1403         case LFUN_VC_CHECK_OUT:
1404                 enable = doc_buffer && doc_buffer->lyxvc().checkOutEnabled();
1405                 break;
1406         case LFUN_VC_LOCKING_TOGGLE:
1407                 enable = doc_buffer && !doc_buffer->isReadonly()
1408                         && doc_buffer->lyxvc().lockingToggleEnabled();
1409                 flag.setOnOff(enable && !doc_buffer->lyxvc().locker().empty());
1410                 break;
1411         case LFUN_VC_REVERT:
1412                 enable = doc_buffer && doc_buffer->lyxvc().inUse();
1413                 break;
1414         case LFUN_VC_UNDO_LAST:
1415                 enable = doc_buffer && doc_buffer->lyxvc().undoLastEnabled();
1416                 break;
1417         case LFUN_VC_REPO_UPDATE:
1418                 enable = doc_buffer && doc_buffer->lyxvc().inUse();
1419                 break;
1420         case LFUN_VC_COMMAND: {
1421                 if (cmd.argument().empty())
1422                         enable = false;
1423                 if (!doc_buffer && contains(cmd.getArg(0), 'D'))
1424                         enable = false;
1425                 break;
1426         }
1427
1428         case LFUN_SERVER_GOTO_FILE_ROW:
1429                 break;
1430
1431         default:
1432                 return false;
1433         }
1434
1435         if (!enable)
1436                 flag.setEnabled(false);
1437
1438         return true;
1439 }
1440
1441
1442 static FileName selectTemplateFile()
1443 {
1444         FileDialog dlg(qt_("Select template file"));
1445         dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1446         dlg.setButton1(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
1447
1448         FileDialog::Result result = dlg.open(toqstr(lyxrc.template_path),
1449                              QStringList(qt_("LyX Documents (*.lyx)")));
1450
1451         if (result.first == FileDialog::Later)
1452                 return FileName();
1453         if (result.second.isEmpty())
1454                 return FileName();
1455         return FileName(fromqstr(result.second));
1456 }
1457
1458
1459 Buffer * GuiView::loadDocument(FileName const & filename, bool tolastfiles)
1460 {
1461         setBusy(true);
1462
1463         Buffer * newBuffer = checkAndLoadLyXFile(filename);
1464
1465         if (!newBuffer) {
1466                 message(_("Document not loaded."));
1467                 setBusy(false);
1468                 return 0;
1469         }
1470
1471         setBuffer(newBuffer);
1472
1473         // scroll to the position when the file was last closed
1474         if (lyxrc.use_lastfilepos) {
1475                 LastFilePosSection::FilePos filepos =
1476                         theSession().lastFilePos().load(filename);
1477                 documentBufferView()->moveToPosition(filepos.pit, filepos.pos, 0, 0);
1478         }
1479
1480         if (tolastfiles)
1481                 theSession().lastFiles().add(filename);
1482
1483         setBusy(false);
1484         return newBuffer;
1485 }
1486
1487
1488 void GuiView::openDocument(string const & fname)
1489 {
1490         string initpath = lyxrc.document_path;
1491
1492         if (documentBufferView()) {
1493                 string const trypath = documentBufferView()->buffer().filePath();
1494                 // If directory is writeable, use this as default.
1495                 if (FileName(trypath).isDirWritable())
1496                         initpath = trypath;
1497         }
1498
1499         string filename;
1500
1501         if (fname.empty()) {
1502                 FileDialog dlg(qt_("Select document to open"), LFUN_FILE_OPEN);
1503                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1504                 dlg.setButton2(qt_("Examples|#E#e"),
1505                                 toqstr(addPath(package().system_support().absFilename(), "examples")));
1506
1507                 QStringList filter(qt_("LyX Documents (*.lyx)"));
1508                 filter << qt_("LyX-1.3.x Documents (*.lyx13)")
1509                         << qt_("LyX-1.4.x Documents (*.lyx14)")
1510                         << qt_("LyX-1.5.x Documents (*.lyx15)")
1511                         << qt_("LyX-1.6.x Documents (*.lyx16)");
1512                 FileDialog::Result result =
1513                         dlg.open(toqstr(initpath), filter);
1514
1515                 if (result.first == FileDialog::Later)
1516                         return;
1517
1518                 filename = fromqstr(result.second);
1519
1520                 // check selected filename
1521                 if (filename.empty()) {
1522                         message(_("Canceled."));
1523                         return;
1524                 }
1525         } else
1526                 filename = fname;
1527
1528         // get absolute path of file and add ".lyx" to the filename if
1529         // necessary.
1530         FileName const fullname =
1531                         fileSearch(string(), filename, "lyx", support::may_not_exist);
1532         if (!fullname.empty())
1533                 filename = fullname.absFilename();
1534
1535         if (!fullname.onlyPath().isDirectory()) {
1536                 Alert::warning(_("Invalid filename"),
1537                                 bformat(_("The directory in the given path\n%1$s\ndoes not exist."),
1538                                 from_utf8(fullname.absFilename())));
1539                 return;
1540         }
1541         // if the file doesn't exist, let the user create one
1542         if (!fullname.exists()) {
1543                 // the user specifically chose this name. Believe him.
1544                 Buffer * const b = newFile(filename, string(), true);
1545                 if (b)
1546                         setBuffer(b);
1547                 return;
1548         }
1549
1550         docstring const disp_fn = makeDisplayPath(filename);
1551         message(bformat(_("Opening document %1$s..."), disp_fn));
1552
1553         docstring str2;
1554         Buffer * buf = loadDocument(fullname);
1555         if (buf) {
1556                 buf->updateLabels();
1557                 setBuffer(buf);
1558                 buf->errors("Parse");
1559                 str2 = bformat(_("Document %1$s opened."), disp_fn);
1560                 if (buf->lyxvc().inUse())
1561                         str2 += " " + from_utf8(buf->lyxvc().versionString()) +
1562                                 " " + _("Version control detected.");
1563         } else {
1564                 str2 = bformat(_("Could not open document %1$s"), disp_fn);
1565         }
1566         message(str2);
1567 }
1568
1569 // FIXME: clean that
1570 static bool import(GuiView * lv, FileName const & filename,
1571         string const & format, ErrorList & errorList)
1572 {
1573         FileName const lyxfile(support::changeExtension(filename.absFilename(), ".lyx"));
1574
1575         string loader_format;
1576         vector<string> loaders = theConverters().loaders();
1577         if (find(loaders.begin(), loaders.end(), format) == loaders.end()) {
1578                 for (vector<string>::const_iterator it = loaders.begin();
1579                      it != loaders.end(); ++it) {
1580                         if (!theConverters().isReachable(format, *it))
1581                                 continue;
1582
1583                         string const tofile =
1584                                 support::changeExtension(filename.absFilename(),
1585                                 formats.extension(*it));
1586                         if (!theConverters().convert(0, filename, FileName(tofile),
1587                                 filename, format, *it, errorList))
1588                                 return false;
1589                         loader_format = *it;
1590                         break;
1591                 }
1592                 if (loader_format.empty()) {
1593                         frontend::Alert::error(_("Couldn't import file"),
1594                                      bformat(_("No information for importing the format %1$s."),
1595                                          formats.prettyName(format)));
1596                         return false;
1597                 }
1598         } else
1599                 loader_format = format;
1600
1601         if (loader_format == "lyx") {
1602                 Buffer * buf = lv->loadDocument(lyxfile);
1603                 if (!buf)
1604                         return false;
1605                 buf->updateLabels();
1606                 lv->setBuffer(buf);
1607                 buf->errors("Parse");
1608         } else {
1609                 Buffer * const b = newFile(lyxfile.absFilename(), string(), true);
1610                 if (!b)
1611                         return false;
1612                 lv->setBuffer(b);
1613                 bool as_paragraphs = loader_format == "textparagraph";
1614                 string filename2 = (loader_format == format) ? filename.absFilename()
1615                         : support::changeExtension(filename.absFilename(),
1616                                           formats.extension(loader_format));
1617                 lv->currentBufferView()->insertPlaintextFile(FileName(filename2),
1618                         as_paragraphs);
1619                 guiApp->setCurrentView(lv);
1620                 lyx::dispatch(FuncRequest(LFUN_MARK_OFF));
1621         }
1622
1623         return true;
1624 }
1625
1626
1627 void GuiView::importDocument(string const & argument)
1628 {
1629         string format;
1630         string filename = split(argument, format, ' ');
1631
1632         LYXERR(Debug::INFO, format << " file: " << filename);
1633
1634         // need user interaction
1635         if (filename.empty()) {
1636                 string initpath = lyxrc.document_path;
1637                 if (documentBufferView()) {
1638                         string const trypath = documentBufferView()->buffer().filePath();
1639                         // If directory is writeable, use this as default.
1640                         if (FileName(trypath).isDirWritable())
1641                                 initpath = trypath;
1642                 }
1643
1644                 docstring const text = bformat(_("Select %1$s file to import"),
1645                         formats.prettyName(format));
1646
1647                 FileDialog dlg(toqstr(text), LFUN_BUFFER_IMPORT);
1648                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1649                 dlg.setButton2(qt_("Examples|#E#e"),
1650                         toqstr(addPath(package().system_support().absFilename(), "examples")));
1651
1652                 docstring filter = formats.prettyName(format);
1653                 filter += " (*.";
1654                 // FIXME UNICODE
1655                 filter += from_utf8(formats.extension(format));
1656                 filter += ')';
1657
1658                 FileDialog::Result result =
1659                         dlg.open(toqstr(initpath), fileFilters(toqstr(filter)));
1660
1661                 if (result.first == FileDialog::Later)
1662                         return;
1663
1664                 filename = fromqstr(result.second);
1665
1666                 // check selected filename
1667                 if (filename.empty())
1668                         message(_("Canceled."));
1669         }
1670
1671         if (filename.empty())
1672                 return;
1673
1674         // get absolute path of file
1675         FileName const fullname(support::makeAbsPath(filename));
1676
1677         FileName const lyxfile(support::changeExtension(fullname.absFilename(), ".lyx"));
1678
1679         // Check if the document already is open
1680         Buffer * buf = theBufferList().getBuffer(lyxfile);
1681         if (buf) {
1682                 setBuffer(buf);
1683                 if (!closeBuffer()) {
1684                         message(_("Canceled."));
1685                         return;
1686                 }
1687         }
1688
1689         docstring const displaypath = makeDisplayPath(lyxfile.absFilename(), 30);
1690
1691         // if the file exists already, and we didn't do
1692         // -i lyx thefile.lyx, warn
1693         if (lyxfile.exists() && fullname != lyxfile) {
1694
1695                 docstring text = bformat(_("The document %1$s already exists.\n\n"
1696                         "Do you want to overwrite that document?"), displaypath);
1697                 int const ret = Alert::prompt(_("Overwrite document?"),
1698                         text, 0, 1, _("&Overwrite"), _("&Cancel"));
1699
1700                 if (ret == 1) {
1701                         message(_("Canceled."));
1702                         return;
1703                 }
1704         }
1705
1706         message(bformat(_("Importing %1$s..."), displaypath));
1707         ErrorList errorList;
1708         if (import(this, fullname, format, errorList))
1709                 message(_("imported."));
1710         else
1711                 message(_("file not imported!"));
1712
1713         // FIXME (Abdel 12/08/06): Is there a need to display the error list here?
1714 }
1715
1716
1717 void GuiView::newDocument(string const & filename, bool from_template)
1718 {
1719         FileName initpath(lyxrc.document_path);
1720         if (documentBufferView()) {
1721                 FileName const trypath(documentBufferView()->buffer().filePath());
1722                 // If directory is writeable, use this as default.
1723                 if (trypath.isDirWritable())
1724                         initpath = trypath;
1725         }
1726
1727         string templatefile;
1728         if (from_template) {
1729                 templatefile = selectTemplateFile().absFilename();
1730                 if (templatefile.empty())
1731                         return;
1732         }
1733
1734         Buffer * b;
1735         if (filename.empty())
1736                 b = newUnnamedFile(templatefile, initpath);
1737         else
1738                 b = newFile(filename, templatefile, true);
1739
1740         if (b)
1741                 setBuffer(b);
1742
1743         // If no new document could be created, it is unsure
1744         // whether there is a valid BufferView.
1745         if (currentBufferView())
1746                 // Ensure the cursor is correctly positioned on screen.
1747                 currentBufferView()->showCursor();
1748 }
1749
1750
1751 void GuiView::insertLyXFile(docstring const & fname)
1752 {
1753         BufferView * bv = documentBufferView();
1754         if (!bv)
1755                 return;
1756
1757         // FIXME UNICODE
1758         FileName filename(to_utf8(fname));
1759
1760         if (!filename.empty()) {
1761                 bv->insertLyXFile(filename);
1762                 return;
1763         }
1764
1765         // Launch a file browser
1766         // FIXME UNICODE
1767         string initpath = lyxrc.document_path;
1768         string const trypath = bv->buffer().filePath();
1769         // If directory is writeable, use this as default.
1770         if (FileName(trypath).isDirWritable())
1771                 initpath = trypath;
1772
1773         // FIXME UNICODE
1774         FileDialog dlg(qt_("Select LyX document to insert"), LFUN_FILE_INSERT);
1775         dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1776         dlg.setButton2(qt_("Examples|#E#e"),
1777                 toqstr(addPath(package().system_support().absFilename(),
1778                 "examples")));
1779
1780         FileDialog::Result result = dlg.open(toqstr(initpath),
1781                              QStringList(qt_("LyX Documents (*.lyx)")));
1782
1783         if (result.first == FileDialog::Later)
1784                 return;
1785
1786         // FIXME UNICODE
1787         filename.set(fromqstr(result.second));
1788
1789         // check selected filename
1790         if (filename.empty()) {
1791                 // emit message signal.
1792                 message(_("Canceled."));
1793                 return;
1794         }
1795
1796         bv->insertLyXFile(filename);
1797 }
1798
1799
1800 void GuiView::insertPlaintextFile(docstring const & fname,
1801         bool asParagraph)
1802 {
1803         BufferView * bv = documentBufferView();
1804         if (!bv)
1805                 return;
1806
1807         if (!fname.empty() && !FileName::isAbsolute(to_utf8(fname))) {
1808                 message(_("Absolute filename expected."));
1809                 return;
1810         }
1811
1812         // FIXME UNICODE
1813         FileName filename(to_utf8(fname));
1814
1815         if (!filename.empty()) {
1816                 bv->insertPlaintextFile(filename, asParagraph);
1817                 return;
1818         }
1819
1820         FileDialog dlg(qt_("Select file to insert"), (asParagraph ?
1821                 LFUN_FILE_INSERT_PLAINTEXT_PARA : LFUN_FILE_INSERT_PLAINTEXT));
1822
1823         FileDialog::Result result = dlg.open(toqstr(bv->buffer().filePath()),
1824                 QStringList(qt_("All Files (*)")));
1825
1826         if (result.first == FileDialog::Later)
1827                 return;
1828
1829         // FIXME UNICODE
1830         filename.set(fromqstr(result.second));
1831
1832         // check selected filename
1833         if (filename.empty()) {
1834                 // emit message signal.
1835                 message(_("Canceled."));
1836                 return;
1837         }
1838
1839         bv->insertPlaintextFile(filename, asParagraph);
1840 }
1841
1842
1843 bool GuiView::renameBuffer(Buffer & b, docstring const & newname)
1844 {
1845         FileName fname = b.fileName();
1846         FileName const oldname = fname;
1847
1848         if (!newname.empty()) {
1849                 // FIXME UNICODE
1850                 fname = support::makeAbsPath(to_utf8(newname), oldname.onlyPath().absFilename());
1851         } else {
1852                 // Switch to this Buffer.
1853                 setBuffer(&b);
1854
1855                 // No argument? Ask user through dialog.
1856                 // FIXME UNICODE
1857                 FileDialog dlg(qt_("Choose a filename to save document as"),
1858                                    LFUN_BUFFER_WRITE_AS);
1859                 dlg.setButton1(qt_("Documents|#o#O"), toqstr(lyxrc.document_path));
1860                 dlg.setButton2(qt_("Templates|#T#t"), toqstr(lyxrc.template_path));
1861
1862                 if (!isLyXFilename(fname.absFilename()))
1863                         fname.changeExtension(".lyx");
1864
1865                 FileDialog::Result result =
1866                         dlg.save(toqstr(fname.onlyPath().absFilename()),
1867                                QStringList(qt_("LyX Documents (*.lyx)")),
1868                                      toqstr(fname.onlyFileName()));
1869
1870                 if (result.first == FileDialog::Later)
1871                         return false;
1872
1873                 fname.set(fromqstr(result.second));
1874
1875                 if (fname.empty())
1876                         return false;
1877
1878                 if (!isLyXFilename(fname.absFilename()))
1879                         fname.changeExtension(".lyx");
1880         }
1881
1882         if (FileName(fname).exists()) {
1883                 docstring const file = makeDisplayPath(fname.absFilename(), 30);
1884                 docstring text = bformat(_("The document %1$s already "
1885                                            "exists.\n\nDo you want to "
1886                                            "overwrite that document?"),
1887                                          file);
1888                 int const ret = Alert::prompt(_("Overwrite document?"),
1889                         text, 0, 2, _("&Overwrite"), _("&Rename"), _("&Cancel"));
1890                 switch (ret) {
1891                 case 0: break;
1892                 case 1: return renameBuffer(b, docstring());
1893                 case 2: return false;
1894                 }
1895         }
1896
1897         FileName oldauto = b.getAutosaveFilename();
1898
1899         // Ok, change the name of the buffer
1900         b.setFileName(fname.absFilename());
1901         b.markDirty();
1902         bool unnamed = b.isUnnamed();
1903         b.setUnnamed(false);
1904         b.saveCheckSum(fname);
1905
1906         // bring the autosave file with us, just in case.
1907         b.moveAutosaveFile(oldauto);
1908
1909         if (!saveBuffer(b)) {
1910                 oldauto = b.getAutosaveFilename();
1911                 b.setFileName(oldname.absFilename());
1912                 b.setUnnamed(unnamed);
1913                 b.saveCheckSum(oldname);
1914                 b.moveAutosaveFile(oldauto);
1915                 return false;
1916         }
1917
1918         return true;
1919 }
1920
1921
1922 bool GuiView::saveBuffer(Buffer & b)
1923 {
1924         if (workArea(b) && workArea(b)->inDialogMode())
1925                 return true;
1926
1927         if (b.isUnnamed())
1928                 return renameBuffer(b, docstring());
1929
1930         if (b.save()) {
1931                 theSession().lastFiles().add(b.fileName());
1932                 return true;
1933         }
1934
1935         // Switch to this Buffer.
1936         setBuffer(&b);
1937
1938         // FIXME: we don't tell the user *WHY* the save failed !!
1939         docstring const file = makeDisplayPath(b.absFileName(), 30);
1940         docstring text = bformat(_("The document %1$s could not be saved.\n\n"
1941                                    "Do you want to rename the document and "
1942                                    "try again?"), file);
1943         int const ret = Alert::prompt(_("Rename and save?"),
1944                 text, 0, 2, _("&Rename"), _("&Retry"), _("&Cancel"));
1945         switch (ret) {
1946         case 0:
1947                 if (!renameBuffer(b, docstring()))
1948                         return false;
1949                 break;
1950         case 1:
1951                 break;
1952         case 2:
1953                 return false;
1954         }
1955
1956         return saveBuffer(b);
1957 }
1958
1959
1960 bool GuiView::hideWorkArea(GuiWorkArea * wa)
1961 {
1962         return closeWorkArea(wa, false);
1963 }
1964
1965
1966 bool GuiView::closeWorkArea(GuiWorkArea * wa)
1967 {
1968         Buffer & buf = wa->bufferView().buffer();
1969         return closeWorkArea(wa, !buf.parent());
1970 }
1971
1972
1973 bool GuiView::closeBuffer()
1974 {
1975         GuiWorkArea * wa = currentMainWorkArea();
1976         Buffer & buf = wa->bufferView().buffer();
1977         return wa && closeWorkArea(wa, !buf.parent());
1978 }
1979
1980
1981 void GuiView::writeSession() const {
1982         GuiWorkArea const * active_wa = currentMainWorkArea();
1983         for (int i = 0; i < d.splitter_->count(); ++i) {
1984                 TabWorkArea * twa = d.tabWorkArea(i);
1985                 for (int j = 0; j < twa->count(); ++j) {
1986                         GuiWorkArea * wa = static_cast<GuiWorkArea *>(twa->widget(j));
1987                         Buffer & buf = wa->bufferView().buffer();
1988                         theSession().lastOpened().add(buf.fileName(), wa == active_wa);
1989                 }
1990         }
1991 }
1992
1993
1994 bool GuiView::closeBufferAll()
1995 {
1996         // Close the workareas in all other views
1997         QList<int> const ids = guiApp->viewIds();
1998         for (int i = 0; i != ids.size(); ++i) {
1999                 if (id_ != ids[i] && !guiApp->view(ids[i]).closeWorkAreaAll())
2000                         return false;
2001         }
2002
2003         // Close our own workareas
2004         if (!closeWorkAreaAll())
2005                 return false;
2006
2007         // Now close the hidden buffers. We prevent hidden buffers from being
2008         // dirty, so we can just close them.
2009         theBufferList().closeAll();
2010         return true;
2011 }
2012
2013
2014 bool GuiView::closeWorkAreaAll()
2015 {
2016         setCurrentWorkArea(currentMainWorkArea());
2017
2018         // We might be in a situation that there is still a tabWorkArea, but
2019         // there are no tabs anymore. This can happen when we get here after a
2020         // TabWorkArea::lastWorkAreaRemoved() signal. Therefore we count how
2021         // many TabWorkArea's have no documents anymore.
2022         int empty_twa = 0;
2023
2024         // We have to call count() each time, because it can happen that
2025         // more than one splitter will disappear in one iteration (bug 5998).
2026         for (; d.splitter_->count() > empty_twa; ) {
2027                 TabWorkArea * twa = d.tabWorkArea(empty_twa);
2028
2029                 if (twa->count() == 0)
2030                         ++empty_twa;
2031                 else {
2032                         setCurrentWorkArea(twa->currentWorkArea());
2033                         if (!closeTabWorkArea(twa))
2034                                 return false;
2035                 }
2036         }
2037         return true;
2038 }
2039
2040
2041 bool GuiView::closeWorkArea(GuiWorkArea * wa, bool close_buffer)
2042 {
2043         Buffer & buf = wa->bufferView().buffer();
2044
2045         // If we are in a close_event all children will be closed in some time,
2046         // so no need to do it here. This will ensure that the children end up
2047         // in the session file in the correct order. If we close the master
2048         // buffer, we can close or release the child buffers here too.
2049         if (close_buffer && !closing_) {
2050                 vector<Buffer *> clist = buf.getChildren();
2051                 for (vector<Buffer *>::const_iterator it = clist.begin();
2052                          it != clist.end(); ++it) {
2053                         // If a child is dirty, do not close
2054                         // without user intervention
2055                         //FIXME: should we look in other tabworkareas?
2056                         Buffer * child_buf = *it;
2057                         GuiWorkArea * child_wa = workArea(*child_buf);
2058                         if (child_wa) {
2059                                 if (!closeWorkArea(child_wa, true))
2060                                         return false;
2061                         } else
2062                                 theBufferList().releaseChild(&buf, child_buf);
2063                 }
2064         }
2065         // goto bookmark to update bookmark pit.
2066         //FIXME: we should update only the bookmarks related to this buffer!
2067         LYXERR(Debug::DEBUG, "GuiView::closeBuffer()");
2068         for (size_t i = 0; i < theSession().bookmarks().size(); ++i)
2069                 theLyXFunc().gotoBookmark(i+1, false, false);
2070
2071         // if we are only hiding the buffer and there are multiple views
2072         // of the buffer, then we do not need to ensure a clean buffer.
2073         bool const allow_dirty = inMultiTabs(wa) && !close_buffer;
2074
2075         if (allow_dirty || saveBufferIfNeeded(buf, !close_buffer)) {
2076                 // save in sessions if requested
2077                 // do not save childs if their master
2078                 // is opened as well
2079                 if (!close_buffer)
2080                         removeWorkArea(wa);
2081                 else
2082                         theBufferList().release(&buf);
2083                 return true;
2084         }
2085         return false;
2086 }
2087
2088
2089 bool GuiView::closeTabWorkArea(TabWorkArea * twa)
2090 {
2091         while (twa == d.currentTabWorkArea()) {
2092                 twa->setCurrentIndex(twa->count()-1);
2093
2094                 GuiWorkArea * wa = twa->currentWorkArea();
2095                 Buffer & b = wa->bufferView().buffer();
2096
2097                 // We only want to close the buffer if the same buffer is not visible
2098                 // in another view, and if this is not a child and if we are closing
2099                 // a view (not a tabgroup).
2100                 bool const close_buffer =
2101                         !inMultiViews(wa) && !b.parent() && closing_;
2102
2103                 if (!closeWorkArea(wa, close_buffer))
2104                         return false;
2105         }
2106         return true;
2107 }
2108
2109
2110 bool GuiView::saveBufferIfNeeded(Buffer & buf, bool hiding)
2111 {
2112         if (buf.isClean() || buf.paragraphs().empty())
2113                 return true;
2114
2115         // Switch to this Buffer.
2116         setBuffer(&buf);
2117
2118         docstring file;
2119         // FIXME: Unicode?
2120         if (buf.isUnnamed())
2121                 file = from_utf8(buf.fileName().onlyFileName());
2122         else
2123                 file = buf.fileName().displayName(30);
2124
2125         // Bring this window to top before asking questions.
2126         raise();
2127         activateWindow();
2128
2129         int ret;
2130         if (hiding && buf.isUnnamed()) {
2131                 docstring const text = bformat(_("The document %1$s has not been "
2132                                              "saved yet.\n\nDo you want to save "
2133                                              "the document?"), file);
2134                 ret = Alert::prompt(_("Save new document?"),
2135                         text, 0, 1, _("&Save"), _("&Cancel"));
2136                 if (ret == 1)
2137                         ++ret;
2138         } else {
2139                 docstring const text = bformat(_("The document %1$s has unsaved changes."
2140                         "\n\nDo you want to save the document or discard the changes?"), file);
2141                 ret = Alert::prompt(_("Save changed document?"),
2142                         text, 0, 2, _("&Save"), _("&Discard"), _("&Cancel"));
2143         }
2144
2145         switch (ret) {
2146         case 0:
2147                 if (!saveBuffer(buf))
2148                         return false;
2149                 break;
2150         case 1:
2151                 // if we crash after this we could
2152                 // have no autosave file but I guess
2153                 // this is really improbable (Jug)
2154                 buf.removeAutosaveFile();
2155                 if (hiding)
2156                         // revert all changes
2157                         buf.loadLyXFile(buf.fileName());
2158                 buf.markClean();
2159                 break;
2160         case 2:
2161                 return false;
2162         }
2163         return true;
2164 }
2165
2166
2167 bool GuiView::inMultiTabs(GuiWorkArea * wa)
2168 {
2169         Buffer & buf = wa->bufferView().buffer();
2170
2171         for (int i = 0; i != d.splitter_->count(); ++i) {
2172                 GuiWorkArea * wa_ = d.tabWorkArea(i)->workArea(buf);
2173                 if (wa_ && wa_ != wa)
2174                         return true;
2175         }
2176         return inMultiViews(wa);
2177 }
2178
2179
2180 bool GuiView::inMultiViews(GuiWorkArea * wa)
2181 {
2182         QList<int> const ids = guiApp->viewIds();
2183         Buffer & buf = wa->bufferView().buffer();
2184
2185         int found_twa = 0;
2186         for (int i = 0; i != ids.size() && found_twa <= 1; ++i) {
2187                 if (id_ == ids[i])
2188                         continue;
2189
2190                 if (guiApp->view(ids[i]).workArea(buf))
2191                         return true;
2192         }
2193         return false;
2194 }
2195
2196
2197 void GuiView::gotoNextOrPreviousBuffer(NextOrPrevious np)
2198 {
2199         Buffer * const curbuf = documentBufferView()
2200                 ? &documentBufferView()->buffer() : 0;
2201         Buffer * nextbuf = curbuf;
2202         while (true) {
2203                 if (np == NEXTBUFFER)
2204                         nextbuf = theBufferList().next(nextbuf);
2205                 else
2206                         nextbuf = theBufferList().previous(nextbuf);
2207                 if (nextbuf == curbuf)
2208                         break;
2209                 if (nextbuf == 0) {
2210                         nextbuf = curbuf;
2211                         break;
2212                 }
2213                 if (workArea(*nextbuf))
2214                         break;
2215         }
2216         setBuffer(nextbuf);
2217 }
2218
2219
2220 /// make sure the document is saved
2221 static bool ensureBufferClean(Buffer * buffer)
2222 {
2223         LASSERT(buffer, return false);
2224         if (buffer->isClean() && !buffer->isUnnamed())
2225                 return true;
2226
2227         docstring const file = buffer->fileName().displayName(30);
2228         docstring title;
2229         docstring text;
2230         if (!buffer->isUnnamed()) {
2231                 text = bformat(_("The document %1$s has unsaved "
2232                                              "changes.\n\nDo you want to save "
2233                                              "the document?"), file);
2234                 title = _("Save changed document?");
2235
2236         } else {
2237                 text = bformat(_("The document %1$s has not been "
2238                                              "saved yet.\n\nDo you want to save "
2239                                              "the document?"), file);
2240                 title = _("Save new document?");
2241         }
2242         int const ret = Alert::prompt(title, text, 0, 1, _("&Save"), _("&Cancel"));
2243
2244         if (ret == 0)
2245                 dispatch(FuncRequest(LFUN_BUFFER_WRITE));
2246
2247         return buffer->isClean() && !buffer->isUnnamed();
2248 }
2249
2250
2251 void GuiView::reloadBuffer()
2252 {
2253         Buffer * buf = &documentBufferView()->buffer();
2254         FileName filename = buf->fileName();
2255         Buffer const * master = buf->masterBuffer();
2256         bool const is_child = master != buf;
2257         // The user has already confirmed that the changes, if any, should
2258         // be discarded. So we just release the Buffer and don't call closeBuffer();
2259         theBufferList().release(buf);
2260         buf = loadDocument(filename);
2261         docstring const disp_fn = makeDisplayPath(filename.absFilename());
2262         docstring str;
2263         if (buf) {
2264                 // re-allocate master if necessary
2265                 if (is_child && theBufferList().isLoaded(master)
2266                     && buf->masterBuffer() != master)
2267                         buf->setParent(master);
2268                 buf->updateLabels();
2269                 setBuffer(buf);
2270                 buf->errors("Parse");
2271                 str = bformat(_("Document %1$s reloaded."), disp_fn);
2272         } else {
2273                 str = bformat(_("Could not reload document %1$s"), disp_fn);
2274         }
2275         message(str);
2276 }
2277
2278
2279 void GuiView::dispatchVC(FuncRequest const & cmd)
2280 {
2281         Buffer * buffer = documentBufferView()
2282                 ? &(documentBufferView()->buffer()) : 0;
2283
2284         switch (cmd.action) {
2285         case LFUN_VC_REGISTER:
2286                 if (!buffer || !ensureBufferClean(buffer))
2287                         break;
2288                 if (!buffer->lyxvc().inUse()) {
2289                         if (buffer->lyxvc().registrer())
2290                                 reloadBuffer();
2291                 }
2292                 break;
2293
2294         case LFUN_VC_CHECK_IN:
2295                 if (!buffer || !ensureBufferClean(buffer))
2296                         break;
2297                 if (buffer->lyxvc().inUse() && !buffer->isReadonly()) {
2298                         message(from_utf8(buffer->lyxvc().checkIn()));
2299                         reloadBuffer();
2300                 }
2301                 break;
2302
2303         case LFUN_VC_CHECK_OUT:
2304                 if (!buffer || !ensureBufferClean(buffer))
2305                         break;
2306                 if (buffer->lyxvc().inUse()) {
2307                         message(from_utf8(buffer->lyxvc().checkOut()));
2308                         reloadBuffer();
2309                 }
2310                 break;
2311
2312         case LFUN_VC_LOCKING_TOGGLE:
2313                 LASSERT(buffer, return);
2314                 if (!ensureBufferClean(buffer) || buffer->isReadonly())
2315                         break;
2316                 if (buffer->lyxvc().inUse()) {
2317                         string res = buffer->lyxvc().lockingToggle();
2318                         if (res.empty()) {
2319                                 frontend::Alert::error(_("Revision control error."),
2320                                 _("Error when setting the locking property."));
2321                         } else {
2322                                 message(from_utf8(res));
2323                                 reloadBuffer();
2324                         }
2325                 }
2326                 break;
2327
2328         case LFUN_VC_REVERT:
2329                 LASSERT(buffer, return);
2330                 buffer->lyxvc().revert();
2331                 reloadBuffer();
2332                 break;
2333
2334         case LFUN_VC_UNDO_LAST:
2335                 LASSERT(buffer, return);
2336                 buffer->lyxvc().undoLast();
2337                 reloadBuffer();
2338                 break;
2339
2340         case LFUN_VC_REPO_UPDATE:
2341                 LASSERT(buffer, return);
2342                 if (ensureBufferClean(buffer)) {
2343                         string res = buffer->lyxvc().repoUpdate();
2344                         message(from_utf8(res));
2345                         reloadBuffer();
2346                 }
2347                 break;
2348
2349         case LFUN_VC_COMMAND: {
2350                 string flag = cmd.getArg(0);
2351                 if (buffer && contains(flag, 'R') && !ensureBufferClean(buffer))
2352                         break;
2353                 docstring message;
2354                 if (contains(flag, 'M')) {
2355                         if (!Alert::askForText(message, _("LyX VC: Log Message")))
2356                                 break;
2357                 }
2358                 string path = cmd.getArg(1);
2359                 if (contains(path, "$$p") && buffer)
2360                         path = subst(path, "$$p", buffer->filePath());
2361                 LYXERR(Debug::LYXVC, "Directory: " << path);
2362                 FileName pp(path);
2363                 if (!pp.isReadableDirectory()) {
2364                         lyxerr << _("Directory is not accessible.") << endl;
2365                         break;
2366                 }
2367                 support::PathChanger p(pp);
2368
2369                 string command = cmd.getArg(2);
2370                 if (command.empty())
2371                         break;
2372                 if (buffer) {
2373                         command = subst(command, "$$i", buffer->absFileName());
2374                         command = subst(command, "$$p", buffer->filePath());
2375                 }
2376                 command = subst(command, "$$m", to_utf8(message));
2377                 LYXERR(Debug::LYXVC, "Command: " << command);
2378                 Systemcall one;
2379                 one.startscript(Systemcall::Wait, command);
2380
2381                 if (!buffer)
2382                         break;
2383                 if (contains(flag, 'I'))
2384                         buffer->markDirty();
2385                 if (contains(flag, 'R'))
2386                         reloadBuffer();
2387
2388                 break;
2389                 }
2390         default:
2391                 break;
2392         }
2393 }
2394
2395
2396 void GuiView::openChildDocument(string const & fname)
2397 {
2398         LASSERT(documentBufferView(), return);
2399         Buffer & buffer = documentBufferView()->buffer();
2400         FileName const filename = support::makeAbsPath(fname, buffer.filePath());
2401         documentBufferView()->saveBookmark(false);
2402         Buffer * child = 0;
2403         bool parsed = false;
2404         if (theBufferList().exists(filename)) {
2405                 child = theBufferList().getBuffer(filename);
2406         } else {
2407                 message(bformat(_("Opening child document %1$s..."),
2408                 makeDisplayPath(filename.absFilename())));
2409                 child = loadDocument(filename, false);
2410                 parsed = true;
2411         }
2412         if (!child)
2413                 return;
2414
2415         // Set the parent name of the child document.
2416         // This makes insertion of citations and references in the child work,
2417         // when the target is in the parent or another child document.
2418         child->setParent(&buffer);
2419         child->masterBuffer()->updateLabels();
2420         setBuffer(child);
2421         if (parsed)
2422                 child->errors("Parse");
2423 }
2424
2425
2426 bool GuiView::goToFileRow(string const & argument)
2427 {
2428         string file_name;
2429         int row;
2430         istringstream is(argument);
2431         is >> file_name >> row;
2432         file_name = os::internal_path(file_name);
2433         Buffer * buf = 0;
2434         string const abstmp = package().temp_dir().absFilename();
2435         string const realtmp = package().temp_dir().realPath();
2436         // We have to use os::path_prefix_is() here, instead of
2437         // simply prefixIs(), because the file name comes from
2438         // an external application and may need case adjustment.
2439         if (os::path_prefix_is(file_name, abstmp, os::CASE_ADJUSTED)
2440                 || os::path_prefix_is(file_name, realtmp, os::CASE_ADJUSTED)) {
2441                 // Needed by inverse dvi search. If it is a file
2442                 // in tmpdir, call the apropriated function.
2443                 // If tmpdir is a symlink, we may have the real
2444                 // path passed back, so we correct for that.
2445                 if (!prefixIs(file_name, abstmp))
2446                         file_name = subst(file_name, realtmp, abstmp);
2447                 buf = theBufferList().getBufferFromTmp(file_name);
2448         } else {
2449                 // Must replace extension of the file to be .lyx
2450                 // and get full path
2451                 FileName const s = fileSearch(string(),
2452                                               support::changeExtension(file_name, ".lyx"), "lyx");
2453                 // Either change buffer or load the file
2454                 if (theBufferList().exists(s))
2455                         buf = theBufferList().getBuffer(s);
2456                 else if (s.exists()) {
2457                         buf = loadDocument(s);
2458                         buf->updateLabels();
2459                         buf->errors("Parse");
2460                 } else {
2461                         message(bformat(
2462                                         _("File does not exist: %1$s"),
2463                                         makeDisplayPath(file_name)));
2464                         return false;
2465                 }
2466         }
2467         setBuffer(buf);
2468         documentBufferView()->setCursorFromRow(row);
2469         return true;
2470 }
2471
2472
2473 bool GuiView::dispatch(FuncRequest const & cmd)
2474 {
2475         BufferView * bv = currentBufferView();
2476         // By default we won't need any update.
2477         if (bv)
2478                 bv->cursor().updateFlags(Update::None);
2479
2480         Buffer * doc_buffer = documentBufferView()
2481                 ? &(documentBufferView()->buffer()) : 0;
2482
2483         bool dispatched = true;
2484
2485         if (cmd.origin == FuncRequest::TOC) {
2486                 GuiToc * toc = static_cast<GuiToc*>(findOrBuild("toc", false));
2487                 toc->doDispatch(bv->cursor(), cmd);
2488                 return true;
2489         }
2490
2491         switch(cmd.action) {
2492                 case LFUN_BUFFER_CHILD_OPEN:
2493                         openChildDocument(to_utf8(cmd.argument()));
2494                         break;
2495
2496                 case LFUN_BUFFER_IMPORT:
2497                         importDocument(to_utf8(cmd.argument()));
2498                         break;
2499
2500                 case LFUN_BUFFER_SWITCH:
2501                         if (FileName::isAbsolute(to_utf8(cmd.argument()))) {
2502                                 Buffer * buffer =
2503                                         theBufferList().getBuffer(FileName(to_utf8(cmd.argument())));
2504                                 if (buffer)
2505                                         setBuffer(buffer);
2506                                 else
2507                                         message(_("Document not loaded"));
2508                         }
2509                         break;
2510
2511                 case LFUN_BUFFER_NEXT:
2512                         gotoNextOrPreviousBuffer(NEXTBUFFER);
2513                         break;
2514
2515                 case LFUN_BUFFER_PREVIOUS:
2516                         gotoNextOrPreviousBuffer(PREVBUFFER);
2517                         break;
2518
2519                 case LFUN_COMMAND_EXECUTE: {
2520                         bool const show_it = cmd.argument() != "off";
2521                         // FIXME: this is a hack, "minibuffer" should not be
2522                         // hardcoded.
2523                         if (GuiToolbar * t = toolbar("minibuffer")) {
2524                                 t->setVisible(show_it);
2525                                 if (show_it && t->commandBuffer())
2526                                         t->commandBuffer()->setFocus();
2527                         }
2528                         break;
2529                 }
2530                 case LFUN_DROP_LAYOUTS_CHOICE:
2531                         d.layout_->showPopup();
2532                         break;
2533
2534                 case LFUN_MENU_OPEN:
2535                         if (QMenu * menu = guiApp->menus().menu(toqstr(cmd.argument()), *this))
2536                                 menu->exec(QCursor::pos());
2537                         break;
2538
2539                 case LFUN_FILE_INSERT:
2540                         insertLyXFile(cmd.argument());
2541                         break;
2542                 case LFUN_FILE_INSERT_PLAINTEXT_PARA:
2543                         insertPlaintextFile(cmd.argument(), true);
2544                         break;
2545
2546                 case LFUN_FILE_INSERT_PLAINTEXT:
2547                         insertPlaintextFile(cmd.argument(), false);
2548                         break;
2549
2550                 case LFUN_BUFFER_RELOAD: {
2551                         LASSERT(doc_buffer, break);
2552                         docstring const file = makeDisplayPath(doc_buffer->absFileName(), 20);
2553                         docstring text = bformat(_("Any changes will be lost. Are you sure "
2554                                                              "you want to revert to the saved version of the document %1$s?"), file);
2555                         int const ret = Alert::prompt(_("Revert to saved document?"),
2556                                 text, 1, 1, _("&Revert"), _("&Cancel"));
2557
2558                         if (ret == 0)
2559                                 reloadBuffer();
2560                         break;
2561                 }
2562
2563                 case LFUN_BUFFER_WRITE:
2564                         LASSERT(doc_buffer, break);
2565                         saveBuffer(*doc_buffer);
2566                         break;
2567
2568                 case LFUN_BUFFER_WRITE_AS:
2569                         LASSERT(doc_buffer, break);
2570                         renameBuffer(*doc_buffer, cmd.argument());
2571                         break;
2572
2573                 case LFUN_BUFFER_WRITE_ALL: {
2574                         Buffer * first = theBufferList().first();
2575                         if (!first)
2576                                 break;
2577                         message(_("Saving all documents..."));
2578                         // We cannot use a for loop as the buffer list cycles.
2579                         Buffer * b = first;
2580                         do {
2581                                 if (!b->isClean()) {
2582                                         saveBuffer(*b);
2583                                         LYXERR(Debug::ACTION, "Saved " << b->absFileName());
2584                                 }
2585                                 b = theBufferList().next(b);
2586                         } while (b != first);
2587                         message(_("All documents saved."));
2588                         break;
2589                 }
2590
2591                 case LFUN_BUFFER_CLOSE:
2592                         closeBuffer();
2593                         break;
2594
2595                 case LFUN_BUFFER_CLOSE_ALL:
2596                         closeBufferAll();
2597                         break;
2598
2599                 case LFUN_TOOLBAR_TOGGLE: {
2600                         string const name = cmd.getArg(0);
2601                         if (GuiToolbar * t = toolbar(name))
2602                                 t->toggle();
2603                         break;
2604                 }
2605
2606                 case LFUN_DIALOG_UPDATE: {
2607                         string const name = to_utf8(cmd.argument());
2608                         if (currentBufferView()) {
2609                                 Inset * inset = currentBufferView()->editedInset(name);
2610                                 // Can only update a dialog connected to an existing inset
2611                                 if (!inset)
2612                                         break;
2613                                 // FIXME: get rid of this indirection; GuiView ask the inset
2614                                 // if he is kind enough to update itself...
2615                                 FuncRequest fr(LFUN_INSET_DIALOG_UPDATE, cmd.argument());
2616                                 inset->dispatch(currentBufferView()->cursor(), fr);
2617                         } else if (name == "paragraph") {
2618                                 lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_UPDATE));
2619                         } else if (name == "prefs" || name == "document") {
2620                                 updateDialog(name, string());
2621                         }
2622                         break;
2623                 }
2624
2625                 case LFUN_DIALOG_TOGGLE: {
2626                         if (isDialogVisible(cmd.getArg(0)))
2627                                 dispatch(FuncRequest(LFUN_DIALOG_HIDE, cmd.argument()));
2628                         else
2629                                 dispatch(FuncRequest(LFUN_DIALOG_SHOW, cmd.argument()));
2630                         break;
2631                 }
2632
2633                 case LFUN_DIALOG_DISCONNECT_INSET:
2634                         disconnectDialog(to_utf8(cmd.argument()));
2635                         break;
2636
2637                 case LFUN_DIALOG_HIDE: {
2638                         guiApp->hideDialogs(to_utf8(cmd.argument()), 0);
2639                         break;
2640                 }
2641
2642                 case LFUN_DIALOG_SHOW: {
2643                         string const name = cmd.getArg(0);
2644                         string data = trim(to_utf8(cmd.argument()).substr(name.size()));
2645
2646                         if (name == "character") {
2647                                 data = freefont2string();
2648                                 if (!data.empty())
2649                                         showDialog("character", data);
2650                         } else if (name == "latexlog") {
2651                                 Buffer::LogType type;
2652                                 string const logfile = doc_buffer->logName(&type);
2653                                 switch (type) {
2654                                 case Buffer::latexlog:
2655                                         data = "latex ";
2656                                         break;
2657                                 case Buffer::buildlog:
2658                                         data = "literate ";
2659                                         break;
2660                                 }
2661                                 data += Lexer::quoteString(logfile);
2662                                 showDialog("log", data);
2663                         } else if (name == "vclog") {
2664                                 string const data = "vc " +
2665                                         Lexer::quoteString(doc_buffer->lyxvc().getLogFile());
2666                                 showDialog("log", data);
2667                         } else if (name == "symbols") {
2668                                 data = bv->cursor().getEncoding()->name();
2669                                 if (!data.empty())
2670                                         showDialog("symbols", data);
2671                         // bug 5274
2672                         } else if (name == "prefs" && isFullScreen()) {
2673                                 FuncRequest fr(LFUN_INSET_INSERT, "fullscreen");
2674                                 lfunUiToggle(fr);
2675                                 showDialog("prefs", data);
2676                         } else
2677                                 showDialog(name, data);
2678                         break;
2679                 }
2680
2681                 case LFUN_MESSAGE:
2682                         message(cmd.argument());
2683                         break;
2684
2685                 case LFUN_UI_TOGGLE:
2686                         lfunUiToggle(cmd);
2687                         // Make sure the keyboard focus stays in the work area.
2688                         setFocus();
2689                         break;
2690
2691                 case LFUN_SPLIT_VIEW: {
2692                         LASSERT(doc_buffer, break);
2693                         string const orientation = cmd.getArg(0);
2694                         d.splitter_->setOrientation(orientation == "vertical"
2695                                 ? Qt::Vertical : Qt::Horizontal);
2696                         TabWorkArea * twa = addTabWorkArea();
2697                         GuiWorkArea * wa = twa->addWorkArea(*doc_buffer, *this);
2698                         setCurrentWorkArea(wa);
2699                         break;
2700                 }
2701                 case LFUN_CLOSE_TAB_GROUP:
2702                         if (TabWorkArea * twa = d.currentTabWorkArea()) {
2703                                 closeTabWorkArea(twa);
2704                                 d.current_work_area_ = 0;
2705                                 twa = d.currentTabWorkArea();
2706                                 // Switch to the next GuiWorkArea in the found TabWorkArea.
2707                                 if (twa) {
2708                                         // Make sure the work area is up to date.
2709                                         setCurrentWorkArea(twa->currentWorkArea());
2710                                 } else {
2711                                         setCurrentWorkArea(0);
2712                                 }
2713                         }
2714                         break;
2715
2716                 case LFUN_COMPLETION_INLINE:
2717                         if (d.current_work_area_)
2718                                 d.current_work_area_->completer().showInline();
2719                         break;
2720
2721                 case LFUN_COMPLETION_POPUP:
2722                         if (d.current_work_area_)
2723                                 d.current_work_area_->completer().showPopup();
2724                         break;
2725
2726
2727                 case LFUN_COMPLETION_COMPLETE:
2728                         if (d.current_work_area_)
2729                                 d.current_work_area_->completer().tab();
2730                         break;
2731
2732                 case LFUN_COMPLETION_CANCEL:
2733                         if (d.current_work_area_) {
2734                                 if (d.current_work_area_->completer().popupVisible())
2735                                         d.current_work_area_->completer().hidePopup();
2736                                 else
2737                                         d.current_work_area_->completer().hideInline();
2738                         }
2739                         break;
2740
2741                 case LFUN_COMPLETION_ACCEPT:
2742                         if (d.current_work_area_)
2743                                 d.current_work_area_->completer().activate();
2744                         break;
2745
2746                 case LFUN_BUFFER_ZOOM_IN:
2747                 case LFUN_BUFFER_ZOOM_OUT:
2748                         if (cmd.argument().empty()) {
2749                                 if (cmd.action == LFUN_BUFFER_ZOOM_IN)
2750                                         lyxrc.zoom += 20;
2751                                 else
2752                                         lyxrc.zoom -= 20;
2753                         } else
2754                                 lyxrc.zoom += convert<int>(cmd.argument());
2755
2756                         if (lyxrc.zoom < 10)
2757                                 lyxrc.zoom = 10;
2758
2759                         // The global QPixmapCache is used in GuiPainter to cache text
2760                         // painting so we must reset it.
2761                         QPixmapCache::clear();
2762                         guiApp->fontLoader().update();
2763                         lyx::dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
2764                         break;
2765
2766                 case LFUN_VC_REGISTER:
2767                 case LFUN_VC_CHECK_IN:
2768                 case LFUN_VC_CHECK_OUT:
2769                 case LFUN_VC_REPO_UPDATE:
2770                 case LFUN_VC_LOCKING_TOGGLE:
2771                 case LFUN_VC_REVERT:
2772                 case LFUN_VC_UNDO_LAST:
2773                 case LFUN_VC_COMMAND:
2774                         dispatchVC(cmd);
2775                         break;
2776
2777                 case LFUN_SERVER_GOTO_FILE_ROW:
2778                         goToFileRow(to_utf8(cmd.argument()));
2779                         break;
2780
2781                 default:
2782                         dispatched = false;
2783                         break;
2784         }
2785
2786         // Part of automatic menu appearance feature.
2787         if (isFullScreen()) {
2788                 if (menuBar()->isVisible() && lyxrc.full_screen_menubar)
2789                         menuBar()->hide();
2790                 if (statusBar()->isVisible())
2791                         statusBar()->hide();
2792         }
2793
2794         return dispatched;
2795 }
2796
2797
2798 void GuiView::lfunUiToggle(FuncRequest const & cmd)
2799 {
2800         string const arg = cmd.getArg(0);
2801         if (arg == "scrollbar") {
2802                 // hide() is of no help
2803                 if (d.current_work_area_->verticalScrollBarPolicy() ==
2804                         Qt::ScrollBarAlwaysOff)
2805
2806                         d.current_work_area_->setVerticalScrollBarPolicy(
2807                                 Qt::ScrollBarAsNeeded);
2808                 else
2809                         d.current_work_area_->setVerticalScrollBarPolicy(
2810                                 Qt::ScrollBarAlwaysOff);
2811                 return;
2812         }
2813         if (arg == "statusbar") {
2814                 statusBar()->setVisible(!statusBar()->isVisible());
2815                 return;
2816         }
2817         if (arg == "menubar") {
2818                 menuBar()->setVisible(!menuBar()->isVisible());
2819                 return;
2820         }
2821 #if QT_VERSION >= 0x040300
2822         if (arg == "frame") {
2823                 int l, t, r, b;
2824                 getContentsMargins(&l, &t, &r, &b);
2825                 //are the frames in default state?
2826                 d.current_work_area_->setFrameStyle(QFrame::NoFrame);
2827                 if (l == 0) {
2828                         setContentsMargins(-2, -2, -2, -2);
2829                 } else {
2830                         setContentsMargins(0, 0, 0, 0);
2831                 }
2832                 return;
2833         }
2834 #endif
2835         if (arg == "fullscreen") {
2836                 toggleFullScreen();
2837                 return;
2838         }
2839
2840         message(bformat("LFUN_UI_TOGGLE " + _("%1$s unknown command!"), from_utf8(arg)));
2841 }
2842
2843
2844 void GuiView::toggleFullScreen()
2845 {
2846         if (isFullScreen()) {
2847                 for (int i = 0; i != d.splitter_->count(); ++i)
2848                         d.tabWorkArea(i)->setFullScreen(false);
2849 #if QT_VERSION >= 0x040300
2850                 setContentsMargins(0, 0, 0, 0);
2851 #endif
2852                 setWindowState(windowState() ^ Qt::WindowFullScreen);
2853                 restoreLayout();
2854                 menuBar()->show();
2855                 statusBar()->show();
2856         } else {
2857                 // bug 5274
2858                 hideDialogs("prefs", 0);
2859                 for (int i = 0; i != d.splitter_->count(); ++i)
2860                         d.tabWorkArea(i)->setFullScreen(true);
2861 #if QT_VERSION >= 0x040300
2862                 setContentsMargins(-2, -2, -2, -2);
2863 #endif
2864                 saveLayout();
2865                 setWindowState(windowState() ^ Qt::WindowFullScreen);
2866                 statusBar()->hide();
2867                 if (lyxrc.full_screen_menubar)
2868                         menuBar()->hide();
2869                 if (lyxrc.full_screen_toolbars) {
2870                         ToolbarMap::iterator end = d.toolbars_.end();
2871                         for (ToolbarMap::iterator it = d.toolbars_.begin(); it != end; ++it)
2872                                 it->second->hide();
2873                 }
2874         }
2875
2876         // give dialogs like the TOC a chance to adapt
2877         updateDialogs();
2878 }
2879
2880
2881 Buffer const * GuiView::updateInset(Inset const * inset)
2882 {
2883         if (!d.current_work_area_)
2884                 return 0;
2885
2886         if (inset)
2887                 d.current_work_area_->scheduleRedraw();
2888
2889         return &d.current_work_area_->bufferView().buffer();
2890 }
2891
2892
2893 void GuiView::restartCursor()
2894 {
2895         /* When we move around, or type, it's nice to be able to see
2896          * the cursor immediately after the keypress.
2897          */
2898         if (d.current_work_area_)
2899                 d.current_work_area_->startBlinkingCursor();
2900
2901         // Take this occasion to update the other GUI elements.
2902         updateDialogs();
2903         updateStatusBar();
2904 }
2905
2906
2907 void GuiView::updateCompletion(Cursor & cur, bool start, bool keep)
2908 {
2909         if (d.current_work_area_)
2910                 d.current_work_area_->completer().updateVisibility(cur, start, keep);
2911 }
2912
2913 namespace {
2914
2915 // This list should be kept in sync with the list of insets in
2916 // src/insets/Inset.cpp.  I.e., if a dialog goes with an inset, the
2917 // dialog should have the same name as the inset.
2918 // Changes should be also recorded in LFUN_DIALOG_SHOW doxygen
2919 // docs in LyXAction.cpp.
2920
2921 char const * const dialognames[] = {
2922 "aboutlyx", "bibitem", "bibtex", "box", "branch", "changes", "character",
2923 "citation", "document", "errorlist", "ert", "external", "file", "findreplace",
2924 "findreplaceadv", "float", "graphics", "href", "include", "index",
2925 "index_print", "info", "listings", "label", "log", "mathdelimiter",
2926 "mathmatrix", "mathspace", "nomenclature", "nomencl_print", "note",
2927 "paragraph", "phantom", "prefs", "print", "ref", "sendto", "space",
2928 "spellchecker", "symbols", "tabular", "tabularcreate", "thesaurus", "texinfo",
2929 "toc", "view-source", "vspace", "wrap" };
2930
2931 char const * const * const end_dialognames =
2932         dialognames + (sizeof(dialognames) / sizeof(char *));
2933
2934 class cmpCStr {
2935 public:
2936         cmpCStr(char const * name) : name_(name) {}
2937         bool operator()(char const * other) {
2938                 return strcmp(other, name_) == 0;
2939         }
2940 private:
2941         char const * name_;
2942 };
2943
2944
2945 bool isValidName(string const & name)
2946 {
2947         return find_if(dialognames, end_dialognames,
2948                             cmpCStr(name.c_str())) != end_dialognames;
2949 }
2950
2951 } // namespace anon
2952
2953
2954 void GuiView::resetDialogs()
2955 {
2956         // Make sure that no LFUN uses any LyXView.
2957         guiApp->setCurrentView(0);
2958         saveLayout();
2959         menuBar()->clear();
2960         constructToolbars();
2961         guiApp->menus().fillMenuBar(menuBar(), this, false);
2962         d.layout_->updateContents(true);
2963         // Now update controls with current buffer.
2964         guiApp->setCurrentView(this);
2965         restoreLayout();
2966         restartCursor();
2967 }
2968
2969
2970 Dialog * GuiView::findOrBuild(string const & name, bool hide_it)
2971 {
2972         if (!isValidName(name))
2973                 return 0;
2974
2975         map<string, DialogPtr>::iterator it = d.dialogs_.find(name);
2976
2977         if (it != d.dialogs_.end()) {
2978                 if (hide_it)
2979                         it->second->hideView();
2980                 return it->second.get();
2981         }
2982
2983         Dialog * dialog = build(name);
2984         d.dialogs_[name].reset(dialog);
2985         if (lyxrc.allow_geometry_session)
2986                 dialog->restoreSession();
2987         if (hide_it)
2988                 dialog->hideView();
2989         return dialog;
2990 }
2991
2992
2993 void GuiView::showDialog(string const & name, string const & data,
2994         Inset * inset)
2995 {
2996         if (d.in_show_)
2997                 return;
2998
2999         d.in_show_ = true;
3000         try {
3001                 Dialog * dialog = findOrBuild(name, false);
3002                 if (dialog) {
3003                         dialog->showData(data);
3004                         if (inset && currentBufferView())
3005                                 currentBufferView()->editInset(name, inset);
3006                 }
3007         }
3008         catch (ExceptionMessage const & ex) {
3009                 d.in_show_ = false;
3010                 throw ex;
3011         }
3012         d.in_show_ = false;
3013 }
3014
3015
3016 bool GuiView::isDialogVisible(string const & name) const
3017 {
3018         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
3019         if (it == d.dialogs_.end())
3020                 return false;
3021         return it->second.get()->isVisibleView() && !it->second.get()->isClosing();
3022 }
3023
3024
3025 void GuiView::hideDialog(string const & name, Inset * inset)
3026 {
3027         map<string, DialogPtr>::const_iterator it = d.dialogs_.find(name);
3028         if (it == d.dialogs_.end())
3029                 return;
3030
3031         if (inset && currentBufferView()
3032                 && inset != currentBufferView()->editedInset(name))
3033                 return;
3034
3035         Dialog * const dialog = it->second.get();
3036         if (dialog->isVisibleView())
3037                 dialog->hideView();
3038         if (currentBufferView())
3039                 currentBufferView()->editInset(name, 0);
3040 }
3041
3042
3043 void GuiView::disconnectDialog(string const & name)
3044 {
3045         if (!isValidName(name))
3046                 return;
3047         if (currentBufferView())
3048                 currentBufferView()->editInset(name, 0);
3049 }
3050
3051
3052 void GuiView::hideAll() const
3053 {
3054         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
3055         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
3056
3057         for(; it != end; ++it)
3058                 it->second->hideView();
3059 }
3060
3061
3062 void GuiView::updateDialogs()
3063 {
3064         map<string, DialogPtr>::const_iterator it  = d.dialogs_.begin();
3065         map<string, DialogPtr>::const_iterator end = d.dialogs_.end();
3066
3067         for(; it != end; ++it) {
3068                 Dialog * dialog = it->second.get();
3069                 if (dialog && dialog->isVisibleView())
3070                         dialog->checkStatus();
3071         }
3072         updateToolbars();
3073         updateLayoutList();
3074 }
3075
3076
3077 // will be replaced by a proper factory...
3078 Dialog * createGuiAbout(GuiView & lv);
3079 Dialog * createGuiBibitem(GuiView & lv);
3080 Dialog * createGuiBibtex(GuiView & lv);
3081 Dialog * createGuiBox(GuiView & lv);
3082 Dialog * createGuiBranch(GuiView & lv);
3083 Dialog * createGuiChanges(GuiView & lv);
3084 Dialog * createGuiCharacter(GuiView & lv);
3085 Dialog * createGuiCitation(GuiView & lv);
3086 Dialog * createGuiDelimiter(GuiView & lv);
3087 Dialog * createGuiDocument(GuiView & lv);
3088 Dialog * createGuiErrorList(GuiView & lv);
3089 Dialog * createGuiERT(GuiView & lv);
3090 Dialog * createGuiExternal(GuiView & lv);
3091 Dialog * createGuiFloat(GuiView & lv);
3092 Dialog * createGuiGraphics(GuiView & lv);
3093 Dialog * createGuiInclude(GuiView & lv);
3094 Dialog * createGuiIndex(GuiView & lv);
3095 Dialog * createGuiInfo(GuiView & lv);
3096 Dialog * createGuiLabel(GuiView & lv);
3097 Dialog * createGuiListings(GuiView & lv);
3098 Dialog * createGuiLog(GuiView & lv);
3099 Dialog * createGuiMathHSpace(GuiView & lv);
3100 Dialog * createGuiMathMatrix(GuiView & lv);
3101 Dialog * createGuiNomenclature(GuiView & lv);
3102 Dialog * createGuiNote(GuiView & lv);
3103 Dialog * createGuiParagraph(GuiView & lv);
3104 Dialog * createGuiPhantom(GuiView & lv);
3105 Dialog * createGuiPreferences(GuiView & lv);
3106 Dialog * createGuiPrint(GuiView & lv);
3107 Dialog * createGuiPrintindex(GuiView & lv);
3108 Dialog * createGuiPrintNomencl(GuiView & lv);
3109 Dialog * createGuiRef(GuiView & lv);
3110 Dialog * createGuiSearch(GuiView & lv);
3111 Dialog * createGuiSearchAdv(GuiView & lv);
3112 Dialog * createGuiSendTo(GuiView & lv);
3113 Dialog * createGuiShowFile(GuiView & lv);
3114 Dialog * createGuiSpellchecker(GuiView & lv);
3115 Dialog * createGuiSymbols(GuiView & lv);
3116 Dialog * createGuiTabularCreate(GuiView & lv);
3117 Dialog * createGuiTabular(GuiView & lv);
3118 Dialog * createGuiTexInfo(GuiView & lv);
3119 Dialog * createGuiTextHSpace(GuiView & lv);
3120 Dialog * createGuiToc(GuiView & lv);
3121 Dialog * createGuiThesaurus(GuiView & lv);
3122 Dialog * createGuiHyperlink(GuiView & lv);
3123 Dialog * createGuiVSpace(GuiView & lv);
3124 Dialog * createGuiViewSource(GuiView & lv);
3125 Dialog * createGuiWrap(GuiView & lv);
3126
3127
3128 Dialog * GuiView::build(string const & name)
3129 {
3130         LASSERT(isValidName(name), return 0);
3131
3132         if (name == "aboutlyx")
3133                 return createGuiAbout(*this);
3134         if (name == "bibitem")
3135                 return createGuiBibitem(*this);
3136         if (name == "bibtex")
3137                 return createGuiBibtex(*this);
3138         if (name == "box")
3139                 return createGuiBox(*this);
3140         if (name == "branch")
3141                 return createGuiBranch(*this);
3142         if (name == "changes")
3143                 return createGuiChanges(*this);
3144         if (name == "character")
3145                 return createGuiCharacter(*this);
3146         if (name == "citation")
3147                 return createGuiCitation(*this);
3148         if (name == "document")
3149                 return createGuiDocument(*this);
3150         if (name == "errorlist")
3151                 return createGuiErrorList(*this);
3152         if (name == "ert")
3153                 return createGuiERT(*this);
3154         if (name == "external")
3155                 return createGuiExternal(*this);
3156         if (name == "file")
3157                 return createGuiShowFile(*this);
3158         if (name == "findreplace")
3159                 return createGuiSearch(*this);
3160         if (name == "findreplaceadv")
3161                 return createGuiSearchAdv(*this);
3162         if (name == "float")
3163                 return createGuiFloat(*this);
3164         if (name == "graphics")
3165                 return createGuiGraphics(*this);
3166         if (name == "href")
3167                 return createGuiHyperlink(*this);
3168         if (name == "include")
3169                 return createGuiInclude(*this);
3170         if (name == "index")
3171                 return createGuiIndex(*this);
3172         if (name == "index_print")
3173                 return createGuiPrintindex(*this);
3174         if (name == "info")
3175                 return createGuiInfo(*this);
3176         if (name == "label")
3177                 return createGuiLabel(*this);
3178         if (name == "listings")
3179                 return createGuiListings(*this);
3180         if (name == "log")
3181                 return createGuiLog(*this);
3182         if (name == "mathdelimiter")
3183                 return createGuiDelimiter(*this);
3184         if (name == "mathspace")
3185                 return createGuiMathHSpace(*this);
3186         if (name == "mathmatrix")
3187                 return createGuiMathMatrix(*this);
3188         if (name == "nomenclature")
3189                 return createGuiNomenclature(*this);
3190         if (name == "nomencl_print")
3191                 return createGuiPrintNomencl(*this);
3192         if (name == "note")
3193                 return createGuiNote(*this);
3194         if (name == "paragraph")
3195                 return createGuiParagraph(*this);
3196         if (name == "phantom")
3197                 return createGuiPhantom(*this);
3198         if (name == "prefs")
3199                 return createGuiPreferences(*this);
3200         if (name == "print")
3201                 return createGuiPrint(*this);
3202         if (name == "ref")
3203                 return createGuiRef(*this);
3204         if (name == "sendto")
3205                 return createGuiSendTo(*this);
3206         if (name == "space")
3207                 return createGuiTextHSpace(*this);
3208         if (name == "spellchecker")
3209                 return createGuiSpellchecker(*this);
3210         if (name == "symbols")
3211                 return createGuiSymbols(*this);
3212         if (name == "tabular")
3213                 return createGuiTabular(*this);
3214         if (name == "tabularcreate")
3215                 return createGuiTabularCreate(*this);
3216         if (name == "texinfo")
3217                 return createGuiTexInfo(*this);
3218         if (name == "thesaurus")
3219                 return createGuiThesaurus(*this);
3220         if (name == "toc")
3221                 return createGuiToc(*this);
3222         if (name == "view-source")
3223                 return createGuiViewSource(*this);
3224         if (name == "vspace")
3225                 return createGuiVSpace(*this);
3226         if (name == "wrap")
3227                 return createGuiWrap(*this);
3228
3229         return 0;
3230 }
3231
3232
3233 } // namespace frontend
3234 } // namespace lyx
3235
3236 #include "moc_GuiView.cpp"