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 "GuiImplementation.h"
  19 #include "GuiWorkArea.h"
  20 #include "GuiKeySymbol.h"
  21 #include "GuiMenubar.h"
  22 #include "GuiToolbar.h"
  23 #include "GuiToolbars.h"
  24 #include "qt_helpers.h"
  25
  26 #include "frontends/Application.h"
  27 #include "frontends/Dialogs.h"
  28 #include "frontends/Gui.h"
  29 #include "frontends/WorkArea.h"
  30
  31 #include "support/filetools.h"
  32 #include "support/convert.h"
  33 #include "support/lstrings.h"
  34 #include "support/os.h"
  35
  36 #include "Buffer.h"
  37 #include "BufferParams.h"
  38 #include "BufferView.h"
  39 #include "BufferList.h"
  40 #include "Cursor.h"
  41 #include "debug.h"
  42 #include "FuncRequest.h"
  43 #include "Layout.h"
  44 #include "LyX.h"
  45 #include "LyXFunc.h"
  46 #include "LyXRC.h"
  47 #include "MenuBackend.h"
  48 #include "Paragraph.h"
  49 #include "Session.h"
  50 #include "ToolbarBackend.h"
  51 #include "version.h"
  52
  53 #include <QAction>
  54 #include <QApplication>
  55 #include <QCloseEvent>
  56 #include <QDesktopWidget>
  57 #include <QDragEnterEvent>
  58 #include <QDropEvent>
  59 #include <QList>
  60 #include <QMenu>
  61 #include <QPainter>
  62 #include <QPixmap>
  63 #include <QPushButton>
  64 #include <QStackedWidget>
  65 #include <QStatusBar>
  66 #include <QToolBar>
  67 #include <QUrl>
  68
  69 using std::endl;
  70 using std::string;
  71 using std::vector;
  72
  73 namespace lyx {
  74
  75 using support::makeDisplayPath;
  76
  77 extern bool quitting;
  78
  79 namespace frontend {
  80
  81 namespace {
  82
  83 int const statusbar_timer_value = 3000;
  84
  85 class BackgroundWidget : public QWidget
  86 {
  87 public:
  88         BackgroundWidget(QString const & file, QString const & text)
  89         {
  90                 splash_ = new QPixmap(file);
  91                 if (!splash_) {
  92                         lyxerr << "could not load splash screen: '" << fromqstr(file) << "'" << endl;
  93                         return;
  94                 }
  95
  96                 QPainter pain(splash_);
  97                 pain.setPen(QColor(255, 255, 0));
  98                 QFont font;
  99                 // The font used to display the version info
 100                 font.setStyleHint(QFont::SansSerif);
 101                 font.setWeight(QFont::Bold);
 102                 font.setPointSize(convert<int>(lyxrc.font_sizes[Font::SIZE_LARGE]));
 103                 pain.setFont(font);
 104                 pain.drawText(260, 270, text);
 105         }
 106
 107         void paintEvent(QPaintEvent *)
 108         {
 109                 if (!splash_)
 110                         return;
 111
 112                 int x = (width() - splash_->width()) / 2;
 113                 int y = (height() - splash_->height()) / 2;
 114                 QPainter pain(this);
 115                 pain.drawPixmap(x, y, *splash_);
 116         }
 117
 118 private:
 119         QPixmap * splash_;
 120 };
 121
 122 };
 123
 124
 125 struct GuiViewBase::GuiViewPrivate
 126 {
 127         string cur_title;
 128
 129         int posx_offset;
 130         int posy_offset;
 131
 132         TabWorkArea * tab_widget_;
 133         QStackedWidget * stack_widget_;
 134         BackgroundWidget * bg_widget_;
 135         /// view's menubar
 136         GuiMenubar * menubar_;
 137         /// view's toolbars
 138         GuiToolbars * toolbars_;
 139         ///
 140         docstring current_layout;
 141
 142         GuiViewPrivate() : posx_offset(0), posy_offset(0) {}
 143
 144         unsigned int smallIconSize;
 145         unsigned int normalIconSize;
 146         unsigned int bigIconSize;
 147         // static needed by "New Window"
 148         static unsigned int lastIconSize;
 149
 150         QMenu * toolBarPopup(GuiViewBase * parent)
 151         {
 152                 // FIXME: translation
 153                 QMenu * menu = new QMenu(parent);
 154                 QActionGroup * iconSizeGroup = new QActionGroup(parent);
 155
 156                 QAction * smallIcons = new QAction(iconSizeGroup);
 157                 smallIcons->setText(qt_("Small-sized icons"));
 158                 smallIcons->setCheckable(true);
 159                 QObject::connect(smallIcons, SIGNAL(triggered()), parent, SLOT(smallSizedIcons()));
 160                 menu->addAction(smallIcons);
 161
 162                 QAction * normalIcons = new QAction(iconSizeGroup);
 163                 normalIcons->setText(qt_("Normal-sized icons"));
 164                 normalIcons->setCheckable(true);
 165                 QObject::connect(normalIcons, SIGNAL(triggered()), parent, SLOT(normalSizedIcons()));
 166                 menu->addAction(normalIcons);
 167
 168                 QAction * bigIcons = new QAction(iconSizeGroup);
 169                 bigIcons->setText(qt_("Big-sized icons"));
 170                 bigIcons->setCheckable(true);
 171                 QObject::connect(bigIcons, SIGNAL(triggered()), parent, SLOT(bigSizedIcons()));
 172                 menu->addAction(bigIcons);
 173
 174                 unsigned int cur = parent->iconSize().width();
 175                 if ( cur == parent->d.smallIconSize)
 176                         smallIcons->setChecked(true);
 177                 else if (cur == parent->d.normalIconSize)
 178                         normalIcons->setChecked(true);
 179                 else if (cur == parent->d.bigIconSize)
 180                         bigIcons->setChecked(true);
 181
 182                 return menu;
 183         }
 184
 185         void initBackground()
 186         {
 187                 bg_widget_ = 0;
 188                 LYXERR(Debug::GUI) << "show banner: " << lyxrc.show_banner << endl;
 189                 /// The text to be written on top of the pixmap
 190                 QString const text = lyx_version ? QString(lyx_version) : qt_("unknown version");
 191                 bg_widget_ = new BackgroundWidget(":/images/banner.png", text);
 192         }
 193
 194         void setBackground()
 195         {
 196                 if (!bg_widget_)
 197                         return;
 198
 199                 stack_widget_->setCurrentWidget(bg_widget_);
 200                 bg_widget_->setUpdatesEnabled(true);
 201         }
 202 };
 203
 204
 205 unsigned int GuiViewBase::GuiViewPrivate::lastIconSize = 0;
 206
 207
 208 GuiViewBase::GuiViewBase(int id)
 209         : QMainWindow(), LyXView(id), quitting_by_menu_(false),
 210           d(*new GuiViewPrivate)
 211 {
 212         // Qt bug? signal lastWindowClosed does not work
 213         setAttribute(Qt::WA_QuitOnClose, false);
 214         setAttribute(Qt::WA_DeleteOnClose, true);
 215
 216         // hardcode here the platform specific icon size
 217         d.smallIconSize = 14;   // scaling problems
 218         d.normalIconSize = 20;  // ok, default
 219         d.bigIconSize = 26;             // better for some math icons
 220
 221 #ifndef Q_WS_MACX
 222         // assign an icon to main form. We do not do it under Qt/Mac,
 223         // since the icon is provided in the application bundle.
 224         setWindowIcon(QPixmap(":/images/lyx.png"));
 225 #endif
 226
 227         d.tab_widget_ = new TabWorkArea;
 228         QObject::connect(d.tab_widget_, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
 229                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
 230
 231         d.initBackground();
 232         if (d.bg_widget_) {
 233                 LYXERR(Debug::GUI) << "stack widget!" << endl;
 234                 d.stack_widget_ = new QStackedWidget;
 235                 d.stack_widget_->addWidget(d.bg_widget_);
 236                 d.stack_widget_->addWidget(d.tab_widget_);
 237                 setCentralWidget(d.stack_widget_);
 238         } else {
 239                 d.stack_widget_ = 0;
 240                 setCentralWidget(d.tab_widget_);
 241         }
 242
 243         // For Drag&Drop.
 244         setAcceptDrops(true);
 245 }
 246
 247
 248 GuiViewBase::~GuiViewBase()
 249 {
 250         delete d.menubar_;
 251         delete d.toolbars_;
 252         delete &d;
 253 }
 254
 255
 256 void GuiViewBase::close()
 257 {
 258         quitting_by_menu_ = true;
 259         d.tab_widget_->closeAll();
 260         QMainWindow::close();
 261         quitting_by_menu_ = false;
 262 }
 263
 264
 265 void GuiViewBase::setFocus()
 266 {
 267         if (d.tab_widget_->count())
 268                 d.tab_widget_->currentWidget()->setFocus();
 269 }
 270
 271
 272 QMenu* GuiViewBase::createPopupMenu()
 273 {
 274         return d.toolBarPopup(this);
 275 }
 276
 277
 278 void GuiViewBase::init()
 279 {
 280         // GuiToolbars *must* be initialised before GuiMenubar.
 281         d.toolbars_ = new GuiToolbars(*this);
 282         // FIXME: GuiToolbars::init() cannot be integrated in the ctor
 283         // because LyXFunc::getStatus() needs a properly initialized
 284         // GuiToolbars object (for LFUN_TOOLBAR_TOGGLE).
 285         d.toolbars_->init();
 286         d.menubar_ = new GuiMenubar(this, menubackend);
 287
 288         statusBar()->setSizeGripEnabled(true);
 289
 290         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 291                 this, SLOT(update_view_state_qt()));
 292
 293         if (d.stack_widget_)
 294                 d.stack_widget_->setCurrentWidget(d.bg_widget_);
 295 }
 296
 297
 298 void GuiViewBase::closeEvent(QCloseEvent * close_event)
 299 {
 300         // we may have been called through the close window button
 301         // which bypasses the LFUN machinery.
 302         if (!quitting_by_menu_ && theApp()->gui().viewIds().size() == 1) {
 303                 if (!theBufferList().quitWriteAll()) {
 304                         close_event->ignore();
 305                         return;
 306                 }
 307         }
 308
 309         // Make sure that no LFUN use this close to be closed View.
 310         theLyXFunc().setLyXView(0);
 311         // Make sure the timer time out will not trigger a statusbar update.
 312         statusbar_timer_.stop();
 313
 314         theApp()->gui().unregisterView(id());
 315         if (!theApp()->gui().viewIds().empty()) {
 316                 // Just close the window and do nothing else if this is not the
 317                 // last window.
 318                 close_event->accept();
 319                 return;
 320         }
 321
 322         quitting = true;
 323
 324         // this is the place where we leave the frontend.
 325         // it is the only point at which we start quitting.
 326         saveGeometry();
 327         close_event->accept();
 328         // quit the event loop
 329         qApp->quit();
 330 }
 331
 332
 333 void GuiViewBase::dragEnterEvent(QDragEnterEvent * event)
 334 {
 335         if (event->mimeData()->hasUrls())
 336                 event->accept();
 337         /// \todo Ask lyx-devel is this is enough:
 338         /// if (event->mimeData()->hasFormat("text/plain"))
 339         ///     event->acceptProposedAction();
 340 }
 341
 342
 343 void GuiViewBase::dropEvent(QDropEvent* event)
 344 {
 345         QList<QUrl> files = event->mimeData()->urls();
 346         if (files.isEmpty())
 347                 return;
 348
 349         LYXERR(Debug::GUI) << BOOST_CURRENT_FUNCTION
 350                 << " got URLs!" << endl;
 351         for (int i = 0; i != files.size(); ++i) {
 352                 string const file = support::os::internal_path(fromqstr(
 353                         files.at(i).toLocalFile()));
 354                 if (!file.empty())
 355                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 356         }
 357 }
 358
 359
 360 void GuiViewBase::saveGeometry()
 361 {
 362         static bool done = false;
 363         if (done)
 364                 return;
 365         else
 366                 done = true;
 367
 368         // FIXME:
 369         // change the ifdef to 'geometry = normalGeometry();' only
 370         // when Trolltech has fixed the broken normalGeometry on X11:
 371         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 372         // Then also the moveEvent, resizeEvent, and the
 373         // code for floatingGeometry_ can be removed;
 374         // adjust GuiViewBase::setGeometry()
 375
 376         QRect normal_geometry;
 377         int maximized;
 378 #ifdef Q_WS_WIN
 379         normal_geometry = normalGeometry();
 380         if (isMaximized()) {
 381                 maximized = CompletelyMaximized;
 382         } else {
 383                 maximized = NotMaximized;
 384         }
 385 #else
 386         normal_geometry = updateFloatingGeometry();
 387
 388         QDesktopWidget& dw = *qApp->desktop();
 389         QRect desk = dw.availableGeometry(dw.primaryScreen());
 390         // Qt bug on Linux: load completely maximized, vert max. save-> frameGeometry().height() is wrong
 391         if (isMaximized() && desk.width() <= frameGeometry().width() && desk.height() <= frameGeometry().height()) {
 392                 maximized = CompletelyMaximized;
 393                 // maximizing does not work when the window is allready hor. or vert. maximized
 394                 // Tested only on KDE
 395                 int dh = frameGeometry().height() - height();
 396                 if (desk.height() <= normal_geometry.height() + dh)
 397                         normal_geometry.setHeight(normal_geometry.height() - 1);
 398                 int dw = frameGeometry().width() - width();
 399                 if (desk.width() <= normal_geometry.width() + dw)
 400                         normal_geometry.setWidth(normal_geometry.width() - 1);
 401         } else if (desk.height() <= frameGeometry().height()) {
 402                 maximized = VerticallyMaximized;
 403         } else if (desk.width() <= frameGeometry().width()) {
 404                 maximized = HorizontallyMaximized;
 405         } else {
 406                 maximized = NotMaximized;
 407         }
 408
 409
 410 #endif
 411         // save windows size and position
 412         Session & session = LyX::ref().session();
 413         session.sessionInfo().save("WindowWidth", convert<string>(normal_geometry.width()));
 414         session.sessionInfo().save("WindowHeight", convert<string>(normal_geometry.height()));
 415         session.sessionInfo().save("WindowMaximized", convert<string>(maximized));
 416         session.sessionInfo().save("IconSizeXY", convert<string>(iconSize().width()));
 417         if (lyxrc.geometry_xysaved) {
 418                 session.sessionInfo().save("WindowPosX", convert<string>(normal_geometry.x() + d.posx_offset));
 419                 session.sessionInfo().save("WindowPosY", convert<string>(normal_geometry.y() + d.posy_offset));
 420         }
 421         d.toolbars_->saveToolbarInfo();
 422 }
 423
 424
 425 void GuiViewBase::setGeometry(unsigned int width,
 426                           unsigned int height,
 427                           int posx, int posy,
 428                           int maximized,
 429                           unsigned int iconSizeXY,
 430                           const string & geometryArg)
 431 {
 432         // use last value (not at startup)
 433         if (d.lastIconSize != 0)
 434                 setIconSize(d.lastIconSize);
 435         else if (iconSizeXY != 0)
 436                 setIconSize(iconSizeXY);
 437         else
 438                 setIconSize(d.normalIconSize);
 439
 440         // only true when the -geometry option was NOT used
 441         if (width != 0 && height != 0) {
 442                 if (posx != -1 && posy != -1) {
 443                         // if there are startup positioning problems:
 444                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 445                         QDesktopWidget& dw = *qApp->desktop();
 446                         if (dw.isVirtualDesktop()) {
 447                                 if(!dw.geometry().contains(posx, posy)) {
 448                                         posx = 50;
 449                                         posy = 50;
 450                                 }
 451                         } else {
 452                                 // Which system doesn't use a virtual desktop?
 453                                 // TODO save also last screen number and check if it is still availabe.
 454                         }
 455 #ifdef Q_WS_WIN
 456                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 457                         QWidget::setGeometry(posx, posy, width, height);
 458 #else
 459                         resize(width, height);
 460                         move(posx, posy);
 461 #endif
 462                 } else {
 463                         resize(width, height);
 464                 }
 465
 466                 // remember original size
 467                 floatingGeometry_ = QRect(posx, posy, width, height);
 468
 469                 if (maximized != NotMaximized) {
 470                         if (maximized == CompletelyMaximized) {
 471                                 setWindowState(Qt::WindowMaximized);
 472                         } else {
 473 #ifndef Q_WS_WIN
 474                                 // TODO How to set by the window manager?
 475                                 //      setWindowState(Qt::WindowVerticallyMaximized);
 476                                 //      is not possible
 477                                 QDesktopWidget& dw = *qApp->desktop();
 478                                 QRect desk = dw.availableGeometry(dw.primaryScreen());
 479                                 if (maximized == VerticallyMaximized)
 480                                         resize(width, desk.height());
 481                                 if (maximized == HorizontallyMaximized)
 482                                         resize(desk.width(), height);
 483 #endif
 484                         }
 485                 }
 486         }
 487         else
 488         {
 489                 // FIXME: move this code into parse_geometry() (LyX.cpp)
 490 #ifdef Q_WS_WIN
 491                 int x, y;
 492                 int w, h;
 493                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 494                 re.indexIn(toqstr(geometryArg.c_str()));
 495                 w = re.cap(1).toInt();
 496                 h = re.cap(2).toInt();
 497                 x = re.cap(3).toInt();
 498                 y = re.cap(4).toInt();
 499                 QWidget::setGeometry( x, y, w, h );
 500 #else
 501                 // silence warning
 502                 (void)geometryArg;
 503 #endif
 504         }
 505
 506         d.setBackground();
 507
 508         show();
 509
 510         // For an unknown reason, the Window title update is not effective for
 511         // the second windows up until it is shown on screen (Qt bug?).
 512         updateWindowTitle();
 513
 514         // after show geometry() has changed (Qt bug?)
 515         // we compensate the drift when storing the position
 516         d.posx_offset = 0;
 517         d.posy_offset = 0;
 518         if (width != 0 && height != 0)
 519                 if (posx != -1 && posy != -1) {
 520 #ifdef Q_WS_WIN
 521                         d.posx_offset = posx - normalGeometry().x();
 522                         d.posy_offset = posy - normalGeometry().y();
 523 #else
 524 #ifndef Q_WS_MACX
 525                         if (maximized == NotMaximized) {
 526                                 d.posx_offset = posx - geometry().x();
 527                                 d.posy_offset = posy - geometry().y();
 528                         }
 529 #endif
 530 #endif
 531                 }
 532 }
 533
 534
 535 void GuiViewBase::setWindowTitle(docstring const & t, docstring const & it)
 536 {
 537         QString title = windowTitle();
 538         QString new_title = toqstr(t);
 539         if (title != new_title) {
 540                 QMainWindow::setWindowTitle(new_title);
 541                 QMainWindow::setWindowIconText(toqstr(it));
 542         }
 543         if (Buffer const * buf = buffer())
 544                 d.tab_widget_->setTabText(d.tab_widget_->currentIndex(),
 545                         toqstr(makeDisplayPath(buf->fileName(), 30)));
 546 }
 547
 548
 549 void GuiViewBase::message(docstring const & str)
 550 {
 551         statusBar()->showMessage(toqstr(str));
 552         statusbar_timer_.stop();
 553         statusbar_timer_.start(statusbar_timer_value);
 554 }
 555
 556
 557 void GuiViewBase::clearMessage()
 558 {
 559         update_view_state_qt();
 560 }
 561
 562
 563 void GuiViewBase::setIconSize(unsigned int size)
 564 {
 565         d.lastIconSize = size;
 566         QMainWindow::setIconSize(QSize(size, size));
 567 }
 568
 569
 570 void GuiViewBase::smallSizedIcons()
 571 {
 572         setIconSize(d.smallIconSize);
 573 }
 574
 575
 576 void GuiViewBase::normalSizedIcons()
 577 {
 578         setIconSize(d.normalIconSize);
 579 }
 580
 581
 582 void GuiViewBase::bigSizedIcons()
 583 {
 584         setIconSize(d.bigIconSize);
 585 }
 586
 587
 588 void GuiViewBase::update_view_state_qt()
 589 {
 590         if (!hasFocus())
 591                 return;
 592         theLyXFunc().setLyXView(this);
 593         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 594         statusbar_timer_.stop();
 595 }
 596
 597
 598 void GuiViewBase::on_currentWorkAreaChanged(GuiWorkArea * wa)
 599 {
 600         disconnectBuffer();
 601         disconnectBufferView();
 602         connectBufferView(wa->bufferView());
 603         connectBuffer(wa->bufferView().buffer());
 604
 605         updateToc();
 606         // Buffer-dependent dialogs should be updated or
 607         // hidden. This should go here because some dialogs (eg ToC)
 608         // require bv_->text.
 609         getDialogs().updateBufferDependent(true);
 610         updateToolbars();
 611         updateLayoutChoice();
 612         updateWindowTitle();
 613         updateStatusBar();
 614 }
 615
 616
 617 void GuiViewBase::updateStatusBar()
 618 {
 619         // let the user see the explicit message
 620         if (statusbar_timer_.isActive())
 621                 return;
 622
 623         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 624 }
 625
 626
 627 void GuiViewBase::activated(FuncRequest const & func)
 628 {
 629         dispatch(func);
 630 }
 631
 632
 633 bool GuiViewBase::hasFocus() const
 634 {
 635         return qApp->activeWindow() == this;
 636 }
 637
 638
 639 QRect  GuiViewBase::updateFloatingGeometry()
 640 {
 641         QDesktopWidget& dw = *qApp->desktop();
 642         QRect desk = dw.availableGeometry(dw.primaryScreen());
 643         // remember only non-maximized sizes
 644         if (!isMaximized() && desk.width() > frameGeometry().width() && desk.height() > frameGeometry().height()) {
 645                 floatingGeometry_ = QRect(x(), y(), width(), height());
 646         }
 647         return floatingGeometry_;
 648 }
 649
 650
 651 void GuiViewBase::resizeEvent(QResizeEvent *)
 652 {
 653         updateFloatingGeometry();
 654 }
 655
 656
 657 void GuiViewBase::moveEvent(QMoveEvent *)
 658 {
 659         updateFloatingGeometry();
 660 }
 661
 662
 663 bool GuiViewBase::event(QEvent * e)
 664 {
 665         switch (e->type())
 666         {
 667         // Useful debug code:
 668         //case QEvent::ActivationChange:
 669         //case QEvent::WindowDeactivate:
 670         //case QEvent::Paint:
 671         //case QEvent::Enter:
 672         //case QEvent::Leave:
 673         //case QEvent::HoverEnter:
 674         //case QEvent::HoverLeave:
 675         //case QEvent::HoverMove:
 676         //case QEvent::StatusTip:
 677         //case QEvent::DragEnter:
 678         //case QEvent::DragLeave:
 679         //case QEvent::Drop:
 680         //      break;
 681
 682         case QEvent::WindowActivate: {
 683                 theApp()->setCurrentView(*this);
 684                 GuiWorkArea * wa = d.tab_widget_->currentWorkArea();
 685                 if (wa) {
 686                         BufferView & bv = wa->bufferView();
 687                         connectBufferView(bv);
 688                         connectBuffer(bv.buffer());
 689                         // The document structure, name and dialogs might have
 690                         // changed in another view.
 691                         updateWindowTitle();
 692                         getDialogs().updateBufferDependent(true);
 693                 }
 694                 return QMainWindow::event(e);
 695         }
 696         case QEvent::ShortcutOverride: {
 697                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 698                 if (d.tab_widget_->count() == 0) {
 699                         theLyXFunc().setLyXView(this);
 700                         KeySymbol sym;
 701                         setKeySymbol(&sym, ke);
 702                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 703                         e->accept();
 704                         return true;
 705                 }
 706                 if (ke->key() == Qt::Key_Tab || ke->key() == Qt::Key_Backtab) {
 707                         KeySymbol sym;
 708                         setKeySymbol(&sym, ke);
 709                         currentWorkArea()->processKeySym(sym, NoModifier);
 710                         e->accept();
 711                         return true;
 712                 }
 713         }
 714         default:
 715                 return QMainWindow::event(e);
 716         }
 717 }
 718
 719
 720 bool GuiViewBase::focusNextPrevChild(bool /*next*/)
 721 {
 722         setFocus();
 723         return true;
 724 }
 725
 726
 727 void GuiViewBase::showView()
 728 {
 729         QMainWindow::setWindowTitle(qt_("LyX"));
 730         QMainWindow::show();
 731         updateFloatingGeometry();
 732 }
 733
 734
 735 void GuiViewBase::busy(bool yes)
 736 {
 737         GuiWorkArea * wa = d.tab_widget_->currentWorkArea();
 738         if (wa) {
 739                 wa->setUpdatesEnabled(!yes);
 740                 if (yes)
 741                         wa->stopBlinkingCursor();
 742                 else
 743                         wa->startBlinkingCursor();
 744         }
 745
 746         if (yes)
 747                 QApplication::setOverrideCursor(Qt::WaitCursor);
 748         else
 749                 QApplication::restoreOverrideCursor();
 750 }
 751
 752
 753 GuiToolbar * GuiViewBase::makeToolbar(ToolbarInfo const & tbinfo, bool newline)
 754 {
 755         GuiToolbar * toolBar = new GuiToolbar(tbinfo, *this);
 756
 757         if (tbinfo.flags & ToolbarInfo::TOP) {
 758                 if (newline)
 759                         addToolBarBreak(Qt::TopToolBarArea);
 760                 addToolBar(Qt::TopToolBarArea, toolBar);
 761         }
 762
 763         if (tbinfo.flags & ToolbarInfo::BOTTOM) {
 764 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 765 #if (QT_VERSION >= 0x040202)
 766                 if (newline)
 767                         addToolBarBreak(Qt::BottomToolBarArea);
 768 #endif
 769                 addToolBar(Qt::BottomToolBarArea, toolBar);
 770         }
 771
 772         if (tbinfo.flags & ToolbarInfo::LEFT) {
 773 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 774 #if (QT_VERSION >= 0x040202)
 775                 if (newline)
 776                         addToolBarBreak(Qt::LeftToolBarArea);
 777 #endif
 778                 addToolBar(Qt::LeftToolBarArea, toolBar);
 779         }
 780
 781         if (tbinfo.flags & ToolbarInfo::RIGHT) {
 782 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 783 #if (QT_VERSION >= 0x040202)
 784                 if (newline)
 785                         addToolBarBreak(Qt::RightToolBarArea);
 786 #endif
 787                 addToolBar(Qt::RightToolBarArea, toolBar);
 788         }
 789
 790         // The following does not work so I cannot restore to exact toolbar location
 791         /*
 792         ToolbarSection::ToolbarInfo & tbinfo = LyX::ref().session().toolbars().load(tbinfo.name);
 793         toolBar->move(tbinfo.posx, tbinfo.posy);
 794         */
 795
 796         return toolBar;
 797 }
 798
 799
 800 WorkArea * GuiViewBase::workArea(Buffer & buffer)
 801 {
 802         return d.tab_widget_->workArea(buffer);
 803 }
 804
 805
 806 WorkArea * GuiViewBase::addWorkArea(Buffer & buffer)
 807 {
 808         GuiWorkArea * wa = new GuiWorkArea(buffer, *this);
 809         wa->setUpdatesEnabled(false);
 810         d.tab_widget_->addTab(wa, toqstr(makeDisplayPath(buffer.fileName(), 30)));
 811         wa->bufferView().updateMetrics(false);
 812         if (d.stack_widget_)
 813                 d.stack_widget_->setCurrentWidget(d.tab_widget_);
 814         // Hide tabbar if there's only one tab.
 815         d.tab_widget_->showBar(d.tab_widget_->count() > 1);
 816         return wa;
 817 }
 818
 819
 820 WorkArea * GuiViewBase::currentWorkArea()
 821 {
 822         return d.tab_widget_->currentWorkArea();
 823 }
 824
 825
 826 WorkArea const * GuiViewBase::currentWorkArea() const
 827 {
 828         return d.tab_widget_->currentWorkArea();
 829 }
 830
 831
 832 void GuiViewBase::setCurrentWorkArea(WorkArea * work_area)
 833 {
 834         BOOST_ASSERT(work_area);
 835
 836         // Changing work area can result from opening a file so
 837         // update the toc in any case.
 838         updateToc();
 839
 840         GuiWorkArea * wa = static_cast<GuiWorkArea *>(work_area);
 841         BOOST_ASSERT(wa);
 842         d.tab_widget_->setCurrentWorkArea(wa);
 843 }
 844
 845
 846 void GuiViewBase::removeWorkArea(WorkArea * work_area)
 847 {
 848         BOOST_ASSERT(work_area);
 849         if (work_area == currentWorkArea()) {
 850                 disconnectBuffer();
 851                 disconnectBufferView();
 852         }
 853
 854         // removing a work area often results from closing a file so
 855         // update the toc in any case.
 856         updateToc();
 857
 858         GuiWorkArea * gwa = static_cast<GuiWorkArea *>(work_area);
 859         BOOST_ASSERT(gwa);
 860         d.tab_widget_->removeWorkArea(gwa);
 861
 862         getDialogs().hideBufferDependent();
 863
 864         if (d.tab_widget_->count() == 0 && d.stack_widget_)
 865                 // No more work area, switch to the background widget.
 866                 d.setBackground();
 867 }
 868
 869
 870 void GuiViewBase::showMiniBuffer(bool visible)
 871 {
 872         d.toolbars_->showCommandBuffer(visible);
 873 }
 874
 875
 876 void GuiViewBase::openMenu(docstring const & name)
 877 {
 878         d.menubar_->openByName(toqstr(name));
 879 }
 880
 881
 882 void GuiViewBase::openLayoutList()
 883 {
 884         d.toolbars_->openLayoutList();
 885 }
 886
 887
 888 void GuiViewBase::updateLayoutChoice()
 889 {
 890         // Don't show any layouts without a buffer
 891         if (!buffer()) {
 892                 d.toolbars_->clearLayoutList();
 893                 return;
 894         }
 895
 896         // Update the layout display
 897         if (d.toolbars_->updateLayoutList(buffer()->params().getTextClassPtr())) {
 898                 d.current_layout = buffer()->params().getTextClass().defaultLayoutName();
 899         }
 900
 901         docstring const & layout = currentWorkArea()->bufferView().cursor().
 902                 innerParagraph().layout()->name();
 903
 904         if (layout != d.current_layout) {
 905                 d.toolbars_->setLayout(layout);
 906                 d.current_layout = layout;
 907         }
 908 }
 909
 910
 911 bool GuiViewBase::isToolbarVisible(std::string const & id)
 912 {
 913         return d.toolbars_->visible(id);
 914 }
 915
 916 void GuiViewBase::updateToolbars()
 917 {
 918         WorkArea * wa = currentWorkArea();
 919         if (wa) {
 920                 bool const math =
 921                         wa->bufferView().cursor().inMathed();
 922                 bool const table =
 923                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 924                 bool const review =
 925                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
 926                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
 927
 928                 d.toolbars_->update(math, table, review);
 929         } else
 930                 d.toolbars_->update(false, false, false);
 931
 932         // update read-only status of open dialogs.
 933         getDialogs().checkStatus();
 934 }
 935
 936
 937 ToolbarInfo * GuiViewBase::getToolbarInfo(string const & name)
 938 {
 939         return d.toolbars_->getToolbarInfo(name);
 940 }
 941
 942
 943 void GuiViewBase::toggleToolbarState(string const & name, bool allowauto)
 944 {
 945         // it is possible to get current toolbar status like this,...
 946         // but I decide to obey the order of ToolbarBackend::flags
 947         // and disregard real toolbar status.
 948         // toolbars_->saveToolbarInfo();
 949         //
 950         // toggle state on/off/auto
 951         d.toolbars_->toggleToolbarState(name, allowauto);
 952         // update toolbar
 953         updateToolbars();
 954 }
 955
 956
 957 } // namespace frontend
 958 } // namespace lyx
 959
 960 #include "GuiView_moc.cpp"