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 "qt_helpers.h"
  24
  25 #include "frontends/Application.h"
  26 #include "frontends/Dialogs.h"
  27 #include "frontends/Gui.h"
  28 #include "frontends/WorkArea.h"
  29
  30 #include "support/filetools.h"
  31 #include "support/convert.h"
  32 #include "support/lstrings.h"
  33 #include "support/os.h"
  34
  35 #include "Buffer.h"
  36 #include "BufferView.h"
  37 #include "BufferList.h"
  38 #include "callback.h"
  39 #include "debug.h"
  40 #include "FuncRequest.h"
  41 #include "LyX.h"
  42 #include "LyXFunc.h"
  43 #include "LyXRC.h"
  44 #include "MenuBackend.h"
  45 #include "Session.h"
  46 #include "version.h"
  47
  48 #include <QAction>
  49 #include <QApplication>
  50 #include <QCloseEvent>
  51 #include <QDesktopWidget>
  52 #include <QDragEnterEvent>
  53 #include <QDropEvent>
  54 #include <QList>
  55 #include <QMimeData>
  56 #include <QPainter>
  57 #include <QPixmap>
  58 #include <QPushButton>
  59 #include <QStackedWidget>
  60 #include <QStatusBar>
  61 #include <QTabBar>
  62 #include <QToolBar>
  63 #include <QTabWidget>
  64 #include <QUrl>
  65
  66 using std::endl;
  67 using std::string;
  68 using std::vector;
  69
  70 namespace lyx {
  71
  72 using support::FileName;
  73 using support::libFileSearch;
  74 using support::makeDisplayPath;
  75
  76 namespace frontend {
  77
  78 namespace {
  79
  80 int const statusbar_timer_value = 3000;
  81
  82 class BackgroundWidget : public QWidget
  83 {
  84 public:
  85         BackgroundWidget(QString const & file, QString const & text)
  86         {
  87                 splash_ = new QPixmap(file);
  88                 if (!splash_) {
  89                         lyxerr << "could not load splash screen: '" << fromqstr(file) << "'" << endl;
  90                         return;
  91                 }
  92
  93                 QPainter pain(splash_);
  94                 pain.setPen(QColor(255, 255, 0));
  95                 QFont font;
  96                 // The font used to display the version info
  97                 font.setStyleHint(QFont::SansSerif);
  98                 font.setWeight(QFont::Bold);
  99                 font.setPointSize(convert<int>(lyxrc.font_sizes[Font::SIZE_LARGE]));
 100                 pain.setFont(font);
 101                 pain.drawText(260, 270, text);
 102         }
 103
 104         void paintEvent(QPaintEvent *)
 105         {
 106                 if (!splash_)
 107                         return;
 108
 109                 int x = (width() - splash_->width()) / 2;
 110                 int y = (height() - splash_->height()) / 2;
 111                 QPainter pain(this);
 112                 pain.drawPixmap(x, y, *splash_);
 113         }
 114
 115 private:
 116         QPixmap * splash_;
 117 };
 118
 119
 120 class TabWidget : public QTabWidget {
 121 public:
 122         void showBar(bool show) { tabBar()->setVisible(show); }
 123 };
 124
 125
 126 } // namespace anon
 127
 128
 129 struct GuiViewBase::GuiViewPrivate
 130 {
 131         string cur_title;
 132
 133         int posx_offset;
 134         int posy_offset;
 135
 136         TabWidget * tab_widget_;
 137         QStackedWidget * stack_widget_;
 138         BackgroundWidget * bg_widget_;
 139         /// view's menubar
 140         GuiMenubar * menubar_;
 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                 FileName const file = support::libFileSearch("images", "banner", "png");
 192                 if (file.empty())
 193                         return;
 194
 195                 bg_widget_ = new BackgroundWidget(toqstr(file.absFilename()), text);
 196         }
 197
 198         void setBackground()
 199         {
 200                 if (!bg_widget_)
 201                         return;
 202
 203                 stack_widget_->setCurrentWidget(bg_widget_);
 204                 bg_widget_->setUpdatesEnabled(true);
 205         }
 206 };
 207
 208
 209 unsigned int GuiViewBase::GuiViewPrivate::lastIconSize = 0;
 210
 211
 212 GuiViewBase::GuiViewBase(int id)
 213         : QMainWindow(), LyXView(id), quitting_by_menu_(false),
 214           d(*new GuiViewPrivate)
 215 {
 216         // Qt bug? signal lastWindowClosed does not work
 217         setAttribute(Qt::WA_QuitOnClose, false);
 218         setAttribute(Qt::WA_DeleteOnClose, true);
 219
 220         // hardcode here the platform specific icon size
 221         d.smallIconSize = 14;   // scaling problems
 222         d.normalIconSize = 20;  // ok, default
 223         d.bigIconSize = 26;             // better for some math icons
 224
 225 #ifndef Q_WS_MACX
 226         // assign an icon to main form. We do not do it under Qt/Mac,
 227         // since the icon is provided in the application bundle.
 228         FileName const iconname = libFileSearch("images", "lyx", "png");
 229         if (!iconname.empty())
 230                 setWindowIcon(QPixmap(toqstr(iconname.absFilename())));
 231 #endif
 232
 233         d.tab_widget_ = new TabWidget;
 234
 235         QPushButton * closeTabButton = new QPushButton(this);
 236         FileName const file = support::libFileSearch("images", "closetab", "png");
 237         if (!file.empty()) {
 238                 QPixmap pm(toqstr(file.absFilename()));
 239                 closeTabButton->setIcon(QIcon(pm));
 240                 closeTabButton->setMaximumSize(pm.size());
 241                 closeTabButton->setFlat(true);
 242         } else {
 243                 closeTabButton->setText("Close");
 244         }
 245         closeTabButton->setCursor(Qt::ArrowCursor);
 246         closeTabButton->setToolTip(tr("Close tab"));
 247         closeTabButton->setEnabled(true);
 248
 249         QObject::connect(d.tab_widget_, SIGNAL(currentChanged(int)),
 250                         this, SLOT(currentTabChanged(int)));
 251         QObject::connect(closeTabButton, SIGNAL(clicked()),
 252                         this, SLOT(closeCurrentTab()));
 253
 254         d.tab_widget_->setCornerWidget(closeTabButton);
 255 #if QT_VERSION >= 0x040200
 256         d.tab_widget_->setUsesScrollButtons(true);
 257 #endif
 258
 259         d.initBackground();
 260         if (d.bg_widget_) {
 261                 LYXERR(Debug::GUI) << "stack widget!" << endl;
 262                 d.stack_widget_ = new QStackedWidget;
 263                 d.stack_widget_->addWidget(d.bg_widget_);
 264                 d.stack_widget_->addWidget(d.tab_widget_);
 265                 setCentralWidget(d.stack_widget_);
 266         } else {
 267                 d.stack_widget_ = 0;
 268                 setCentralWidget(d.tab_widget_);
 269         }
 270
 271         // For Drag&Drop.
 272         setAcceptDrops(true);
 273 }
 274
 275
 276 GuiViewBase::~GuiViewBase()
 277 {
 278         delete d.menubar_;
 279         delete &d;
 280 }
 281
 282
 283 void GuiViewBase::close()
 284 {
 285         quitting_by_menu_ = true;
 286         QMainWindow::close();
 287         quitting_by_menu_ = false;
 288 }
 289
 290
 291 void GuiViewBase::setFocus()
 292 {
 293         if (d.tab_widget_->count())
 294                 d.tab_widget_->currentWidget()->setFocus();
 295 }
 296
 297
 298 QMenu* GuiViewBase::createPopupMenu()
 299 {
 300         return d.toolBarPopup(this);
 301 }
 302
 303
 304 void GuiViewBase::init()
 305 {
 306         d.menubar_ = new GuiMenubar(this, menubackend);
 307
 308         toolbars_->init();
 309
 310         statusBar()->setSizeGripEnabled(true);
 311
 312         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 313                 this, SLOT(update_view_state_qt()));
 314
 315         if (d.stack_widget_)
 316                 d.stack_widget_->setCurrentWidget(d.bg_widget_);
 317 }
 318
 319
 320 void GuiViewBase::closeEvent(QCloseEvent * close_event)
 321 {
 322         // we may have been called through the close window button
 323         // which bypasses the LFUN machinery.
 324         if (!quitting_by_menu_ && theApp()->gui().viewIds().size() == 1) {
 325                 if (!theBufferList().quitWriteAll()) {
 326                         close_event->ignore();
 327                         return;
 328                 }
 329         }
 330
 331         // Make sure that no LFUN use this close to be closed View.
 332         theLyXFunc().setLyXView(0);
 333         // Make sure the timer time out will not trigger a statusbar update.
 334         statusbar_timer_.stop();
 335
 336         theApp()->gui().unregisterView(id());
 337         if (!theApp()->gui().viewIds().empty()) {
 338                 // Just close the window and do nothing else if this is not the
 339                 // last window.
 340                 close_event->accept();
 341                 return;
 342         }
 343
 344         quitting = true;
 345
 346         // this is the place where we leave the frontend.
 347         // it is the only point at which we start quitting.
 348         saveGeometry();
 349         close_event->accept();
 350         // quit the event loop
 351         qApp->quit();
 352 }
 353
 354
 355 void GuiViewBase::dragEnterEvent(QDragEnterEvent * event)
 356 {
 357         if (event->mimeData()->hasUrls())
 358                 event->accept();
 359         /// \todo Ask lyx-devel is this is enough:
 360         /// if (event->mimeData()->hasFormat("text/plain"))
 361         ///     event->acceptProposedAction();
 362 }
 363
 364
 365 void GuiViewBase::dropEvent(QDropEvent* event)
 366 {
 367         QList<QUrl> files = event->mimeData()->urls();
 368         if (files.isEmpty())
 369                 return;
 370
 371         LYXERR(Debug::GUI) << BOOST_CURRENT_FUNCTION
 372                 << " got URLs!" << endl;
 373         for (int i = 0; i != files.size(); ++i) {
 374                 string const file = support::os::internal_path(fromqstr(
 375                         files.at(i).toLocalFile()));
 376                 if (!file.empty())
 377                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 378         }
 379 }
 380
 381
 382 void GuiViewBase::saveGeometry()
 383 {
 384         static bool done = false;
 385         if (done)
 386                 return;
 387         else
 388                 done = true;
 389
 390         // FIXME:
 391         // change the ifdef to 'geometry = normalGeometry();' only
 392         // when Trolltech has fixed the broken normalGeometry on X11:
 393         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 394         // Then also the moveEvent, resizeEvent, and the
 395         // code for floatingGeometry_ can be removed;
 396         // adjust GuiViewBase::setGeometry()
 397
 398         QRect normal_geometry;
 399         int maximized;
 400 #ifdef Q_WS_WIN
 401         normal_geometry = normalGeometry();
 402         if (isMaximized()) {
 403                 maximized = CompletelyMaximized;
 404         } else {
 405                 maximized = NotMaximized;
 406         }
 407 #else
 408         normal_geometry = updateFloatingGeometry();
 409
 410         QDesktopWidget& dw = *qApp->desktop();
 411         QRect desk = dw.availableGeometry(dw.primaryScreen());
 412         // Qt bug on Linux: load completely maximized, vert max. save-> frameGeometry().height() is wrong
 413         if (isMaximized() && desk.width() <= frameGeometry().width() && desk.height() <= frameGeometry().height()) {
 414                 maximized = CompletelyMaximized;
 415                 // maximizing does not work when the window is allready hor. or vert. maximized
 416                 // Tested only on KDE
 417                 int dh = frameGeometry().height() - height();
 418                 if (desk.height() <= normal_geometry.height() + dh)
 419                         normal_geometry.setHeight(normal_geometry.height() - 1);
 420                 int dw = frameGeometry().width() - width();
 421                 if (desk.width() <= normal_geometry.width() + dw)
 422                         normal_geometry.setWidth(normal_geometry.width() - 1);
 423         } else if (desk.height() <= frameGeometry().height()) {
 424                 maximized = VerticallyMaximized;
 425         } else if (desk.width() <= frameGeometry().width()) {
 426                 maximized = HorizontallyMaximized;
 427         } else {
 428                 maximized = NotMaximized;
 429         }
 430
 431
 432 #endif
 433         // save windows size and position
 434         Session & session = LyX::ref().session();
 435         session.sessionInfo().save("WindowWidth", convert<string>(normal_geometry.width()));
 436         session.sessionInfo().save("WindowHeight", convert<string>(normal_geometry.height()));
 437         session.sessionInfo().save("WindowMaximized", convert<string>(maximized));
 438         session.sessionInfo().save("IconSizeXY", convert<string>(iconSize().width()));
 439         if (lyxrc.geometry_xysaved) {
 440                 session.sessionInfo().save("WindowPosX", convert<string>(normal_geometry.x() + d.posx_offset));
 441                 session.sessionInfo().save("WindowPosY", convert<string>(normal_geometry.y() + d.posy_offset));
 442         }
 443         toolbars_->saveToolbarInfo();
 444 }
 445
 446
 447 void GuiViewBase::setGeometry(unsigned int width,
 448                           unsigned int height,
 449                           int posx, int posy,
 450                           int maximized,
 451                           unsigned int iconSizeXY,
 452                           const string & geometryArg)
 453 {
 454         // use last value (not at startup)
 455         if (d.lastIconSize != 0)
 456                 setIconSize(d.lastIconSize);
 457         else if (iconSizeXY != 0)
 458                 setIconSize(iconSizeXY);
 459         else
 460                 setIconSize(d.normalIconSize);
 461
 462         // only true when the -geometry option was NOT used
 463         if (width != 0 && height != 0) {
 464                 if (posx != -1 && posy != -1) {
 465                         // if there are startup positioning problems:
 466                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 467                         QDesktopWidget& dw = *qApp->desktop();
 468                         if (dw.isVirtualDesktop()) {
 469                                 if(!dw.geometry().contains(posx, posy)) {
 470                                         posx = 50;
 471                                         posy = 50;
 472                                 }
 473                         } else {
 474                                 // Which system doesn't use a virtual desktop?
 475                                 // TODO save also last screen number and check if it is still availabe.
 476                         }
 477 #ifdef Q_WS_WIN
 478                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 479                         QWidget::setGeometry(posx, posy, width, height);
 480 #else
 481                         resize(width, height);
 482                         move(posx, posy);
 483 #endif
 484                 } else {
 485                         resize(width, height);
 486                 }
 487
 488                 // remember original size
 489                 floatingGeometry_ = QRect(posx, posy, width, height);
 490
 491                 if (maximized != NotMaximized) {
 492                         if (maximized == CompletelyMaximized) {
 493                                 setWindowState(Qt::WindowMaximized);
 494                         } else {
 495 #ifndef Q_WS_WIN
 496                                 // TODO How to set by the window manager?
 497                                 //      setWindowState(Qt::WindowVerticallyMaximized);
 498                                 //      is not possible
 499                                 QDesktopWidget& dw = *qApp->desktop();
 500                                 QRect desk = dw.availableGeometry(dw.primaryScreen());
 501                                 if (maximized == VerticallyMaximized)
 502                                         resize(width, desk.height());
 503                                 if (maximized == HorizontallyMaximized)
 504                                         resize(desk.width(), height);
 505 #endif
 506                         }
 507                 }
 508         }
 509         else
 510         {
 511                 // FIXME: move this code into parse_geometry() (LyX.cpp)
 512 #ifdef Q_WS_WIN
 513                 int x, y;
 514                 int w, h;
 515                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 516                 re.indexIn(toqstr(geometryArg.c_str()));
 517                 w = re.cap(1).toInt();
 518                 h = re.cap(2).toInt();
 519                 x = re.cap(3).toInt();
 520                 y = re.cap(4).toInt();
 521                 QWidget::setGeometry( x, y, w, h );
 522 #else
 523                 // silence warning
 524                 (void)geometryArg;
 525 #endif
 526         }
 527
 528         d.setBackground();
 529
 530         show();
 531
 532         // For an unknown reason, the Window title update is not effective for
 533         // the second windows up until it is shown on screen (Qt bug?).
 534         updateWindowTitle();
 535
 536         // after show geometry() has changed (Qt bug?)
 537         // we compensate the drift when storing the position
 538         d.posx_offset = 0;
 539         d.posy_offset = 0;
 540         if (width != 0 && height != 0)
 541                 if (posx != -1 && posy != -1) {
 542 #ifdef Q_WS_WIN
 543                         d.posx_offset = posx - normalGeometry().x();
 544                         d.posy_offset = posy - normalGeometry().y();
 545 #else
 546 #ifndef Q_WS_MACX
 547                         if (maximized == NotMaximized) {
 548                                 d.posx_offset = posx - geometry().x();
 549                                 d.posy_offset = posy - geometry().y();
 550                         }
 551 #endif
 552 #endif
 553                 }
 554 }
 555
 556
 557 void GuiViewBase::setWindowTitle(docstring const & t, docstring const & it)
 558 {
 559         QString title = windowTitle();
 560         QString new_title = toqstr(t);
 561         if (title != new_title) {
 562                 QMainWindow::setWindowTitle(new_title);
 563                 QMainWindow::setWindowIconText(toqstr(it));
 564         }
 565 }
 566
 567
 568 void GuiViewBase::message(docstring const & str)
 569 {
 570         statusBar()->showMessage(toqstr(str));
 571         statusbar_timer_.stop();
 572         statusbar_timer_.start(statusbar_timer_value);
 573 }
 574
 575
 576 void GuiViewBase::clearMessage()
 577 {
 578         update_view_state_qt();
 579 }
 580
 581
 582 void GuiViewBase::setIconSize(unsigned int size)
 583 {
 584         d.lastIconSize = size;
 585         QMainWindow::setIconSize(QSize(size, size));
 586 }
 587
 588
 589 void GuiViewBase::smallSizedIcons()
 590 {
 591         setIconSize(d.smallIconSize);
 592 }
 593
 594
 595 void GuiViewBase::normalSizedIcons()
 596 {
 597         setIconSize(d.normalIconSize);
 598 }
 599
 600
 601 void GuiViewBase::bigSizedIcons()
 602 {
 603         setIconSize(d.bigIconSize);
 604 }
 605
 606
 607 void GuiViewBase::update_view_state_qt()
 608 {
 609         if (!hasFocus())
 610                 return;
 611         theLyXFunc().setLyXView(this);
 612         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 613         statusbar_timer_.stop();
 614 }
 615
 616
 617 void GuiViewBase::closeCurrentTab()
 618 {
 619         dispatch(FuncRequest(LFUN_BUFFER_CLOSE));
 620 }
 621
 622
 623 void GuiViewBase::currentTabChanged(int i)
 624 {
 625         disconnectBuffer();
 626         disconnectBufferView();
 627         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 628         BOOST_ASSERT(wa);
 629         BufferView & bv = wa->bufferView();
 630         connectBufferView(bv);
 631         connectBuffer(bv.buffer());
 632         bv.updateMetrics(false);
 633         bv.cursor().fixIfBroken();
 634         wa->setUpdatesEnabled(true);
 635         wa->redraw();
 636         wa->setFocus();
 637
 638         updateToc();
 639         // Buffer-dependent dialogs should be updated or
 640         // hidden. This should go here because some dialogs (eg ToC)
 641         // require bv_->text.
 642         getDialogs().updateBufferDependent(true);
 643         updateToolbars();
 644         updateLayoutChoice();
 645         updateWindowTitle();
 646         updateStatusBar();
 647
 648         LYXERR(Debug::GUI) << "currentTabChanged " << i
 649                 << "File" << bv.buffer().fileName() << endl;
 650 }
 651
 652
 653 void GuiViewBase::updateStatusBar()
 654 {
 655         // let the user see the explicit message
 656         if (statusbar_timer_.isActive())
 657                 return;
 658
 659         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 660 }
 661
 662
 663 void GuiViewBase::activated(FuncRequest const & func)
 664 {
 665         dispatch(func);
 666 }
 667
 668
 669 bool GuiViewBase::hasFocus() const
 670 {
 671         return qApp->activeWindow() == this;
 672 }
 673
 674
 675 QRect  GuiViewBase::updateFloatingGeometry()
 676 {
 677         QDesktopWidget& dw = *qApp->desktop();
 678         QRect desk = dw.availableGeometry(dw.primaryScreen());
 679         // remember only non-maximized sizes
 680         if (!isMaximized() && desk.width() > frameGeometry().width() && desk.height() > frameGeometry().height()) {
 681                 floatingGeometry_ = QRect(x(), y(), width(), height());
 682         }
 683         return floatingGeometry_;
 684 }
 685
 686
 687 void GuiViewBase::resizeEvent(QResizeEvent *)
 688 {
 689         updateFloatingGeometry();
 690 }
 691
 692
 693 void GuiViewBase::moveEvent(QMoveEvent *)
 694 {
 695         updateFloatingGeometry();
 696 }
 697
 698
 699 bool GuiViewBase::event(QEvent * e)
 700 {
 701         switch (e->type())
 702         {
 703         // Useful debug code:
 704         //case QEvent::WindowActivate:
 705         //case QEvent::ActivationChange:
 706         //case QEvent::WindowDeactivate:
 707         //case QEvent::Paint:
 708         //case QEvent::Enter:
 709         //case QEvent::Leave:
 710         //case QEvent::HoverEnter:
 711         //case QEvent::HoverLeave:
 712         //case QEvent::HoverMove:
 713         //case QEvent::StatusTip:
 714         //case QEvent::DragEnter:
 715         //case QEvent::DragLeave:
 716         //case QEvent::Drop:
 717         //      break;
 718
 719         case QEvent::ShortcutOverride: {
 720                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 721                 if (d.tab_widget_->count() == 0) {
 722                         theLyXFunc().setLyXView(this);
 723                         KeySymbol sym;
 724                         setKeySymbol(&sym, ke);
 725                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 726                         e->accept();
 727                         return true;
 728                 }
 729                 if (ke->key() == Qt::Key_Tab || ke->key() == Qt::Key_Backtab) {
 730                         KeySymbol sym;
 731                         setKeySymbol(&sym, ke);
 732                         currentWorkArea()->processKeySym(sym, key_modifier::none);
 733                         e->accept();
 734                         return true;
 735                 }
 736         }
 737         default:
 738                 return QMainWindow::event(e);
 739         }
 740 }
 741
 742
 743 bool GuiViewBase::focusNextPrevChild(bool /*next*/)
 744 {
 745         setFocus();
 746         return true;
 747 }
 748
 749
 750 void GuiViewBase::showView()
 751 {
 752         QMainWindow::setWindowTitle(qt_("LyX"));
 753         QMainWindow::show();
 754         updateFloatingGeometry();
 755 }
 756
 757
 758 void GuiViewBase::busy(bool yes)
 759 {
 760         if (d.tab_widget_->count()) {
 761                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 762                 BOOST_ASSERT(wa);
 763                 wa->setUpdatesEnabled(!yes);
 764                 if (yes)
 765                         wa->stopBlinkingCursor();
 766                 else
 767                         wa->startBlinkingCursor();
 768         }
 769
 770         if (yes)
 771                 QApplication::setOverrideCursor(Qt::WaitCursor);
 772         else
 773                 QApplication::restoreOverrideCursor();
 774 }
 775
 776
 777 Toolbar * GuiViewBase::makeToolbar(ToolbarInfo const & tbinfo, bool newline)
 778 {
 779         GuiToolbar * toolBar = new GuiToolbar(tbinfo, *this);
 780
 781         if (tbinfo.flags & ToolbarInfo::TOP) {
 782                 if (newline)
 783                         addToolBarBreak(Qt::TopToolBarArea);
 784                 addToolBar(Qt::TopToolBarArea, toolBar);
 785         }
 786
 787         if (tbinfo.flags & ToolbarInfo::BOTTOM) {
 788 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 789 #if (QT_VERSION >= 0x040202)
 790                 if (newline)
 791                         addToolBarBreak(Qt::BottomToolBarArea);
 792 #endif
 793                 addToolBar(Qt::BottomToolBarArea, toolBar);
 794         }
 795
 796         if (tbinfo.flags & ToolbarInfo::LEFT) {
 797 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 798 #if (QT_VERSION >= 0x040202)
 799                 if (newline)
 800                         addToolBarBreak(Qt::LeftToolBarArea);
 801 #endif
 802                 addToolBar(Qt::LeftToolBarArea, toolBar);
 803         }
 804
 805         if (tbinfo.flags & ToolbarInfo::RIGHT) {
 806 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 807 #if (QT_VERSION >= 0x040202)
 808                 if (newline)
 809                         addToolBarBreak(Qt::RightToolBarArea);
 810 #endif
 811                 addToolBar(Qt::RightToolBarArea, toolBar);
 812         }
 813
 814         // The following does not work so I cannot restore to exact toolbar location
 815         /*
 816         ToolbarSection::ToolbarInfo & tbinfo = LyX::ref().session().toolbars().load(tbinfo.name);
 817         toolBar->move(tbinfo.posx, tbinfo.posy);
 818         */
 819
 820         return toolBar;
 821 }
 822
 823
 824 WorkArea * GuiViewBase::workArea(Buffer & buffer)
 825 {
 826         for (int i = 0; i != d.tab_widget_->count(); ++i) {
 827                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 828                 BOOST_ASSERT(wa);
 829                 if (&wa->bufferView().buffer() == &buffer)
 830                         return wa;
 831         }
 832         return 0;
 833 }
 834
 835
 836 WorkArea * GuiViewBase::addWorkArea(Buffer & buffer)
 837 {
 838         GuiWorkArea * wa = new GuiWorkArea(buffer, *this);
 839         wa->setUpdatesEnabled(false);
 840         d.tab_widget_->addTab(wa, toqstr(makeDisplayPath(buffer.fileName(), 30)));
 841         wa->bufferView().updateMetrics(false);
 842         if (d.stack_widget_)
 843                 d.stack_widget_->setCurrentWidget(d.tab_widget_);
 844         // Hide tabbar if there's only one tab.
 845         d.tab_widget_->showBar(d.tab_widget_->count() > 1);
 846         return wa;
 847 }
 848
 849
 850 WorkArea * GuiViewBase::currentWorkArea()
 851 {
 852         if (d.tab_widget_->count() == 0)
 853                 return 0;
 854         BOOST_ASSERT(dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget()));
 855         return dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 856 }
 857
 858
 859 WorkArea const * GuiViewBase::currentWorkArea() const
 860 {
 861         if (d.tab_widget_->count() == 0)
 862                 return 0;
 863         BOOST_ASSERT(dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget()));
 864         return dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget());
 865 }
 866
 867
 868 void GuiViewBase::setCurrentWorkArea(WorkArea * work_area)
 869 {
 870         BOOST_ASSERT(work_area);
 871
 872         // Changing work area can result from opening a file so
 873         // update the toc in any case.
 874         updateToc();
 875
 876         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(work_area);
 877         BOOST_ASSERT(wa);
 878         if (wa != d.tab_widget_->currentWidget())
 879                 // Switch to the work area.
 880                 d.tab_widget_->setCurrentWidget(wa);
 881         else
 882                 // Make sure the work area is up to date.
 883                 currentTabChanged(d.tab_widget_->currentIndex());
 884         wa->setFocus();
 885 }
 886
 887
 888 void GuiViewBase::removeWorkArea(WorkArea * work_area)
 889 {
 890         BOOST_ASSERT(work_area);
 891         if (work_area == currentWorkArea()) {
 892                 disconnectBuffer();
 893                 disconnectBufferView();
 894         }
 895
 896         // removing a work area often results from closing a file so
 897         // update the toc in any case.
 898         updateToc();
 899
 900         GuiWorkArea * gwa = dynamic_cast<GuiWorkArea *>(work_area);
 901         gwa->setUpdatesEnabled(false);
 902         BOOST_ASSERT(gwa);
 903         int index = d.tab_widget_->indexOf(gwa);
 904         d.tab_widget_->removeTab(index);
 905
 906         delete gwa;
 907
 908         if (d.tab_widget_->count()) {
 909                 // make sure the next work area is enabled.
 910                 d.tab_widget_->currentWidget()->setUpdatesEnabled(true);
 911                 // Hide tabbar if there's only one tab.
 912                 d.tab_widget_->showBar(d.tab_widget_->count() > 1);
 913                 return;
 914         }
 915
 916         getDialogs().hideBufferDependent();
 917         if (d.stack_widget_) {
 918                 // No more work area, switch to the background widget.
 919                 d.setBackground();
 920         }
 921 }
 922
 923
 924 void GuiViewBase::showMiniBuffer(bool visible)
 925 {
 926         Toolbar * t = toolbars_->display("minibuffer", visible);
 927         if (t)
 928                 t->focusCommandBuffer();
 929 }
 930
 931
 932 void GuiViewBase::openMenu(docstring const & name)
 933 {
 934         d.menubar_->openByName(name);
 935 }
 936
 937 } // namespace frontend
 938 } // namespace lyx
 939
 940 #include "GuiView_moc.cpp"