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 #include <boost/bind.hpp>
  67 #include <boost/shared_ptr.hpp>
  68 #include <boost/current_function.hpp>
  69
  70 using std::endl;
  71 using std::string;
  72 using std::vector;
  73
  74 namespace lyx {
  75
  76 using support::FileName;
  77 using support::libFileSearch;
  78 using support::makeDisplayPath;
  79
  80 namespace frontend {
  81
  82 namespace {
  83
  84 int const statusbar_timer_value = 3000;
  85
  86 class BackgroundWidget : public QWidget
  87 {
  88 public:
  89         BackgroundWidget(QString const & file, QString const & text)
  90         {
  91                 splash_ = new QPixmap(file);
  92                 if (!splash_) {
  93                         lyxerr << "could not load splash screen: '" << fromqstr(file) << "'" << endl;
  94                         return;
  95                 }
  96
  97                 QPainter pain(splash_);
  98                 pain.setPen(QColor(255, 255, 0));
  99                 QFont font;
 100                 // The font used to display the version info
 101                 font.setStyleHint(QFont::SansSerif);
 102                 font.setWeight(QFont::Bold);
 103                 font.setPointSize(convert<int>(lyxrc.font_sizes[Font::SIZE_LARGE]));
 104                 pain.setFont(font);
 105                 pain.drawText(260, 270, text);
 106         }
 107
 108         void paintEvent(QPaintEvent *)
 109         {
 110                 if (!splash_)
 111                         return;
 112
 113                 int x = (width() - splash_->width()) / 2;
 114                 int y = (height() - splash_->height()) / 2;
 115                 QPainter pain(this);
 116                 pain.drawPixmap(x, y, *splash_);
 117         }
 118
 119 private:
 120         QPixmap * splash_;
 121 };
 122
 123
 124 class TabWidget : public QTabWidget {
 125 public:
 126         void showBar(bool show) { tabBar()->setVisible(show); }
 127 };
 128
 129
 130 } // namespace anon
 131
 132
 133 struct GuiViewBase::GuiViewPrivate
 134 {
 135         string cur_title;
 136
 137         int posx_offset;
 138         int posy_offset;
 139
 140         TabWidget * tab_widget_;
 141         QStackedWidget * stack_widget_;
 142         BackgroundWidget * bg_widget_;
 143         /// view's menubar
 144         GuiMenubar * menubar_;
 145
 146         GuiViewPrivate() : posx_offset(0), posy_offset(0) {}
 147
 148         unsigned int smallIconSize;
 149         unsigned int normalIconSize;
 150         unsigned int bigIconSize;
 151         // static needed by "New Window"
 152         static unsigned int lastIconSize;
 153
 154         QMenu * toolBarPopup(GuiViewBase * parent)
 155         {
 156                 // FIXME: translation
 157                 QMenu * menu = new QMenu(parent);
 158                 QActionGroup * iconSizeGroup = new QActionGroup(parent);
 159
 160                 QAction * smallIcons = new QAction(iconSizeGroup);
 161                 smallIcons->setText(qt_("Small-sized icons"));
 162                 smallIcons->setCheckable(true);
 163                 QObject::connect(smallIcons, SIGNAL(triggered()), parent, SLOT(smallSizedIcons()));
 164                 menu->addAction(smallIcons);
 165
 166                 QAction * normalIcons = new QAction(iconSizeGroup);
 167                 normalIcons->setText(qt_("Normal-sized icons"));
 168                 normalIcons->setCheckable(true);
 169                 QObject::connect(normalIcons, SIGNAL(triggered()), parent, SLOT(normalSizedIcons()));
 170                 menu->addAction(normalIcons);
 171
 172                 QAction * bigIcons = new QAction(iconSizeGroup);
 173                 bigIcons->setText(qt_("Big-sized icons"));
 174                 bigIcons->setCheckable(true);
 175                 QObject::connect(bigIcons, SIGNAL(triggered()), parent, SLOT(bigSizedIcons()));
 176                 menu->addAction(bigIcons);
 177
 178                 unsigned int cur = parent->iconSize().width();
 179                 if ( cur == parent->d.smallIconSize)
 180                         smallIcons->setChecked(true);
 181                 else if (cur == parent->d.normalIconSize)
 182                         normalIcons->setChecked(true);
 183                 else if (cur == parent->d.bigIconSize)
 184                         bigIcons->setChecked(true);
 185
 186                 return menu;
 187         }
 188
 189         void initBackground()
 190         {
 191                 bg_widget_ = 0;
 192                 LYXERR(Debug::GUI) << "show banner: " << lyxrc.show_banner << endl;
 193                 /// The text to be written on top of the pixmap
 194                 QString const text = lyx_version ? QString(lyx_version) : qt_("unknown version");
 195                 FileName const file = support::libFileSearch("images", "banner", "png");
 196                 if (file.empty())
 197                         return;
 198
 199                 bg_widget_ = new BackgroundWidget(toqstr(file.absFilename()), text);
 200         }
 201
 202         void setBackground()
 203         {
 204                 if (!bg_widget_)
 205                         return;
 206
 207                 stack_widget_->setCurrentWidget(bg_widget_);
 208                 bg_widget_->setUpdatesEnabled(true);
 209         }
 210 };
 211
 212
 213 unsigned int GuiViewBase::GuiViewPrivate::lastIconSize = 0;
 214
 215
 216 GuiViewBase::GuiViewBase(int id)
 217         : QMainWindow(), LyXView(id), quitting_by_menu_(false),
 218           d(*new GuiViewPrivate)
 219 {
 220         // Qt bug? signal lastWindowClosed does not work
 221         setAttribute(Qt::WA_QuitOnClose, false);
 222         setAttribute(Qt::WA_DeleteOnClose, true);
 223
 224         // hardcode here the platform specific icon size
 225         d.smallIconSize = 14;   // scaling problems
 226         d.normalIconSize = 20;  // ok, default
 227         d.bigIconSize = 26;             // better for some math icons
 228
 229 #ifndef Q_WS_MACX
 230         // assign an icon to main form. We do not do it under Qt/Mac,
 231         // since the icon is provided in the application bundle.
 232         FileName const iconname = libFileSearch("images", "lyx", "png");
 233         if (!iconname.empty())
 234                 setWindowIcon(QPixmap(toqstr(iconname.absFilename())));
 235 #endif
 236
 237         d.tab_widget_ = new TabWidget;
 238
 239         QPushButton * closeTabButton = new QPushButton(this);
 240         FileName const file = support::libFileSearch("images", "closetab", "png");
 241         if (!file.empty()) {
 242                 QPixmap pm(toqstr(file.absFilename()));
 243                 closeTabButton->setIcon(QIcon(pm));
 244                 closeTabButton->setMaximumSize(pm.size());
 245                 closeTabButton->setFlat(true);
 246         } else {
 247                 closeTabButton->setText("Close");
 248         }
 249         closeTabButton->setCursor(Qt::ArrowCursor);
 250         closeTabButton->setToolTip(tr("Close tab"));
 251         closeTabButton->setEnabled(true);
 252
 253         QObject::connect(d.tab_widget_, SIGNAL(currentChanged(int)),
 254                         this, SLOT(currentTabChanged(int)));
 255         QObject::connect(closeTabButton, SIGNAL(clicked()),
 256                         this, SLOT(closeCurrentTab()));
 257
 258         d.tab_widget_->setCornerWidget(closeTabButton);
 259 #if QT_VERSION >= 0x040200
 260         d.tab_widget_->setUsesScrollButtons(true);
 261 #endif
 262
 263         d.initBackground();
 264         if (d.bg_widget_) {
 265                 lyxerr << "stack widget!" << endl;
 266                 d.stack_widget_ = new QStackedWidget;
 267                 d.stack_widget_->addWidget(d.bg_widget_);
 268                 d.stack_widget_->addWidget(d.tab_widget_);
 269                 setCentralWidget(d.stack_widget_);
 270         } else {
 271                 d.stack_widget_ = 0;
 272                 setCentralWidget(d.tab_widget_);
 273         }
 274
 275         // For Drag&Drop.
 276         setAcceptDrops(true);
 277 }
 278
 279
 280 GuiViewBase::~GuiViewBase()
 281 {
 282         delete d.menubar_;
 283         delete &d;
 284 }
 285
 286
 287 void GuiViewBase::close()
 288 {
 289         quitting_by_menu_ = true;
 290         QMainWindow::close();
 291         quitting_by_menu_ = false;
 292 }
 293
 294
 295 void GuiViewBase::setFocus()
 296 {
 297         if (d.tab_widget_->count())
 298                 d.tab_widget_->currentWidget()->setFocus();
 299 }
 300
 301
 302 QMenu* GuiViewBase::createPopupMenu()
 303 {
 304         return d.toolBarPopup(this);
 305 }
 306
 307
 308 void GuiViewBase::init()
 309 {
 310         d.menubar_ = new GuiMenubar(this, menubackend);
 311
 312         toolbars_->init();
 313
 314         statusBar()->setSizeGripEnabled(true);
 315
 316         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 317                 this, SLOT(update_view_state_qt()));
 318
 319         if (d.stack_widget_)
 320                 d.stack_widget_->setCurrentWidget(d.bg_widget_);
 321 }
 322
 323
 324 void GuiViewBase::closeEvent(QCloseEvent * close_event)
 325 {
 326         // we may have been called through the close window button
 327         // which bypasses the LFUN machinery.
 328         if (!quitting_by_menu_ && theApp()->gui().viewIds().size() == 1) {
 329                 if (!theBufferList().quitWriteAll()) {
 330                         close_event->ignore();
 331                         return;
 332                 }
 333         }
 334
 335         // Make sure that no LFUN use this close to be closed View.
 336         theLyXFunc().setLyXView(0);
 337         // Make sure the timer time out will not trigger a statusbar update.
 338         statusbar_timer_.stop();
 339
 340         theApp()->gui().unregisterView(id());
 341         if (!theApp()->gui().viewIds().empty()) {
 342                 // Just close the window and do nothing else if this is not the
 343                 // last window.
 344                 close_event->accept();
 345                 return;
 346         }
 347
 348         quitting = true;
 349
 350         // this is the place where we leave the frontend.
 351         // it is the only point at which we start quitting.
 352         saveGeometry();
 353         close_event->accept();
 354         // quit the event loop
 355         qApp->quit();
 356 }
 357
 358
 359 void GuiViewBase::dragEnterEvent(QDragEnterEvent * event)
 360 {
 361         if (event->mimeData()->hasUrls())
 362                 event->accept();
 363         /// \todo Ask lyx-devel is this is enough:
 364         /// if (event->mimeData()->hasFormat("text/plain"))
 365         ///     event->acceptProposedAction();
 366 }
 367
 368
 369 void GuiViewBase::dropEvent(QDropEvent* event)
 370 {
 371         QList<QUrl> files = event->mimeData()->urls();
 372         if (files.isEmpty())
 373                 return;
 374
 375         LYXERR(Debug::GUI) << BOOST_CURRENT_FUNCTION
 376                 << " got URLs!" << endl;
 377         for (int i = 0; i != files.size(); ++i) {
 378                 string const file = support::os::internal_path(fromqstr(
 379                         files.at(i).toLocalFile()));
 380                 if (!file.empty())
 381                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 382         }
 383 }
 384
 385
 386 void GuiViewBase::saveGeometry()
 387 {
 388         static bool done = false;
 389         if (done)
 390                 return;
 391         else
 392                 done = true;
 393
 394         // FIXME:
 395         // change the ifdef to 'geometry = normalGeometry();' only
 396         // when Trolltech has fixed the broken normalGeometry on X11:
 397         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 398         // Then also the moveEvent, resizeEvent, and the
 399         // code for floatingGeometry_ can be removed;
 400         // adjust GuiViewBase::setGeometry()
 401
 402         QRect normal_geometry;
 403         int maximized;
 404 #ifdef Q_WS_WIN
 405         normal_geometry = normalGeometry();
 406         if (isMaximized()) {
 407                 maximized = CompletelyMaximized;
 408         } else {
 409                 maximized = NotMaximized;
 410         }
 411 #else
 412         normal_geometry = updateFloatingGeometry();
 413
 414         QDesktopWidget& dw = *qApp->desktop();
 415         QRect desk = dw.availableGeometry(dw.primaryScreen());
 416         // Qt bug on Linux: load completely maximized, vert max. save-> frameGeometry().height() is wrong
 417         if (isMaximized() && desk.width() <= frameGeometry().width() && desk.height() <= frameGeometry().height()) {
 418                 maximized = CompletelyMaximized;
 419                 // maximizing does not work when the window is allready hor. or vert. maximized
 420                 // Tested only on KDE
 421                 int dh = frameGeometry().height() - height();
 422                 if (desk.height() <= normal_geometry.height() + dh)
 423                         normal_geometry.setHeight(normal_geometry.height() - 1);
 424                 int dw = frameGeometry().width() - width();
 425                 if (desk.width() <= normal_geometry.width() + dw)
 426                         normal_geometry.setWidth(normal_geometry.width() - 1);
 427         } else if (desk.height() <= frameGeometry().height()) {
 428                 maximized = VerticallyMaximized;
 429         } else if (desk.width() <= frameGeometry().width()) {
 430                 maximized = HorizontallyMaximized;
 431         } else {
 432                 maximized = NotMaximized;
 433         }
 434
 435
 436 #endif
 437         // save windows size and position
 438         Session & session = LyX::ref().session();
 439         session.sessionInfo().save("WindowWidth", convert<string>(normal_geometry.width()));
 440         session.sessionInfo().save("WindowHeight", convert<string>(normal_geometry.height()));
 441         session.sessionInfo().save("WindowMaximized", convert<string>(maximized));
 442         session.sessionInfo().save("IconSizeXY", convert<string>(iconSize().width()));
 443         if (lyxrc.geometry_xysaved) {
 444                 session.sessionInfo().save("WindowPosX", convert<string>(normal_geometry.x() + d.posx_offset));
 445                 session.sessionInfo().save("WindowPosY", convert<string>(normal_geometry.y() + d.posy_offset));
 446         }
 447         toolbars_->saveToolbarInfo();
 448 }
 449
 450
 451 void GuiViewBase::setGeometry(unsigned int width,
 452                           unsigned int height,
 453                           int posx, int posy,
 454                           int maximized,
 455                           unsigned int iconSizeXY,
 456                           const string & geometryArg)
 457 {
 458         // use last value (not at startup)
 459         if (d.lastIconSize != 0)
 460                 setIconSize(d.lastIconSize);
 461         else if (iconSizeXY != 0)
 462                 setIconSize(iconSizeXY);
 463         else
 464                 setIconSize(d.normalIconSize);
 465
 466         // only true when the -geometry option was NOT used
 467         if (width != 0 && height != 0) {
 468                 if (posx != -1 && posy != -1) {
 469                         // if there are startup positioning problems:
 470                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 471                         QDesktopWidget& dw = *qApp->desktop();
 472                         if (dw.isVirtualDesktop()) {
 473                                 if(!dw.geometry().contains(posx, posy)) {
 474                                         posx = 50;
 475                                         posy = 50;
 476                                 }
 477                         } else {
 478                                 // Which system doesn't use a virtual desktop?
 479                                 // TODO save also last screen number and check if it is still availabe.
 480                         }
 481 #ifdef Q_WS_WIN
 482                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 483                         QWidget::setGeometry(posx, posy, width, height);
 484 #else
 485                         resize(width, height);
 486                         move(posx, posy);
 487 #endif
 488                 } else {
 489                         resize(width, height);
 490                 }
 491
 492                 // remember original size
 493                 floatingGeometry_ = QRect(posx, posy, width, height);
 494
 495                 if (maximized != NotMaximized) {
 496                         if (maximized == CompletelyMaximized) {
 497                                 setWindowState(Qt::WindowMaximized);
 498                         } else {
 499 #ifndef Q_WS_WIN
 500                                 // TODO How to set by the window manager?
 501                                 //      setWindowState(Qt::WindowVerticallyMaximized);
 502                                 //      is not possible
 503                                 QDesktopWidget& dw = *qApp->desktop();
 504                                 QRect desk = dw.availableGeometry(dw.primaryScreen());
 505                                 if (maximized == VerticallyMaximized)
 506                                         resize(width, desk.height());
 507                                 if (maximized == HorizontallyMaximized)
 508                                         resize(desk.width(), height);
 509 #endif
 510                         }
 511                 }
 512         }
 513         else
 514         {
 515                 // FIXME: move this code into parse_geometry() (LyX.cpp)
 516 #ifdef Q_WS_WIN
 517                 int x, y;
 518                 int w, h;
 519                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 520                 re.indexIn(toqstr(geometryArg.c_str()));
 521                 w = re.cap(1).toInt();
 522                 h = re.cap(2).toInt();
 523                 x = re.cap(3).toInt();
 524                 y = re.cap(4).toInt();
 525                 QWidget::setGeometry( x, y, w, h );
 526 #else
 527                 // silence warning
 528                 (void)geometryArg;
 529 #endif
 530         }
 531
 532         d.setBackground();
 533
 534         show();
 535
 536         // For an unknown reason, the Window title update is not effective for
 537         // the second windows up until it is shown on screen (Qt bug?).
 538         updateWindowTitle();
 539
 540         // after show geometry() has changed (Qt bug?)
 541         // we compensate the drift when storing the position
 542         d.posx_offset = 0;
 543         d.posy_offset = 0;
 544         if (width != 0 && height != 0)
 545                 if (posx != -1 && posy != -1) {
 546 #ifdef Q_WS_WIN
 547                         d.posx_offset = posx - normalGeometry().x();
 548                         d.posy_offset = posy - normalGeometry().y();
 549 #else
 550 #ifndef Q_WS_MACX
 551                         if (maximized == NotMaximized) {
 552                                 d.posx_offset = posx - geometry().x();
 553                                 d.posy_offset = posy - geometry().y();
 554                         }
 555 #endif
 556 #endif
 557                 }
 558 }
 559
 560
 561 void GuiViewBase::setWindowTitle(docstring const & t, docstring const & it)
 562 {
 563         QString title = windowTitle();
 564         QString new_title = toqstr(t);
 565         if (title != new_title) {
 566                 QMainWindow::setWindowTitle(new_title);
 567                 QMainWindow::setWindowIconText(toqstr(it));
 568         }
 569 }
 570
 571
 572 void GuiViewBase::message(docstring const & str)
 573 {
 574         statusBar()->showMessage(toqstr(str));
 575         statusbar_timer_.stop();
 576         statusbar_timer_.start(statusbar_timer_value);
 577 }
 578
 579
 580 void GuiViewBase::clearMessage()
 581 {
 582         update_view_state_qt();
 583 }
 584
 585
 586 void GuiViewBase::setIconSize(unsigned int size)
 587 {
 588         d.lastIconSize = size;
 589         QMainWindow::setIconSize(QSize(size, size));
 590 }
 591
 592
 593 void GuiViewBase::smallSizedIcons()
 594 {
 595         setIconSize(d.smallIconSize);
 596 }
 597
 598
 599 void GuiViewBase::normalSizedIcons()
 600 {
 601         setIconSize(d.normalIconSize);
 602 }
 603
 604
 605 void GuiViewBase::bigSizedIcons()
 606 {
 607         setIconSize(d.bigIconSize);
 608 }
 609
 610
 611 void GuiViewBase::update_view_state_qt()
 612 {
 613         if (!hasFocus())
 614                 return;
 615         theLyXFunc().setLyXView(this);
 616         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 617         statusbar_timer_.stop();
 618 }
 619
 620
 621 void GuiViewBase::closeCurrentTab()
 622 {
 623         dispatch(FuncRequest(LFUN_BUFFER_CLOSE));
 624 }
 625
 626
 627 void GuiViewBase::currentTabChanged(int i)
 628 {
 629         disconnectBuffer();
 630         disconnectBufferView();
 631         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 632         BOOST_ASSERT(wa);
 633         BufferView & bv = wa->bufferView();
 634         connectBufferView(bv);
 635         connectBuffer(bv.buffer());
 636         bv.updateMetrics(false);
 637         bv.cursor().fixIfBroken();
 638         wa->setUpdatesEnabled(true);
 639         wa->redraw();
 640         wa->setFocus();
 641
 642         updateToc();
 643         // Buffer-dependent dialogs should be updated or
 644         // hidden. This should go here because some dialogs (eg ToC)
 645         // require bv_->text.
 646         getDialogs().updateBufferDependent(true);
 647         updateToolbars();
 648         updateLayoutChoice();
 649         updateWindowTitle();
 650         updateStatusBar();
 651
 652         lyxerr << "currentTabChanged " << i
 653                 << "File" << bv.buffer().fileName() << endl;
 654 }
 655
 656
 657 void GuiViewBase::updateStatusBar()
 658 {
 659         // let the user see the explicit message
 660         if (statusbar_timer_.isActive())
 661                 return;
 662
 663         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 664 }
 665
 666
 667 void GuiViewBase::activated(FuncRequest const & func)
 668 {
 669         dispatch(func);
 670 }
 671
 672
 673 bool GuiViewBase::hasFocus() const
 674 {
 675         return qApp->activeWindow() == this;
 676 }
 677
 678
 679 QRect  GuiViewBase::updateFloatingGeometry()
 680 {
 681         QDesktopWidget& dw = *qApp->desktop();
 682         QRect desk = dw.availableGeometry(dw.primaryScreen());
 683         // remember only non-maximized sizes
 684         if (!isMaximized() && desk.width() > frameGeometry().width() && desk.height() > frameGeometry().height()) {
 685                 floatingGeometry_ = QRect(x(), y(), width(), height());
 686         }
 687         return floatingGeometry_;
 688 }
 689
 690
 691 void GuiViewBase::resizeEvent(QResizeEvent *)
 692 {
 693         updateFloatingGeometry();
 694 }
 695
 696
 697 void GuiViewBase::moveEvent(QMoveEvent *)
 698 {
 699         updateFloatingGeometry();
 700 }
 701
 702
 703 bool GuiViewBase::event(QEvent * e)
 704 {
 705         switch (e->type())
 706         {
 707         // Useful debug code:
 708         //case QEvent::WindowActivate:
 709         //case QEvent::ActivationChange:
 710         //case QEvent::WindowDeactivate:
 711         //case QEvent::Paint:
 712         //case QEvent::Enter:
 713         //case QEvent::Leave:
 714         //case QEvent::HoverEnter:
 715         //case QEvent::HoverLeave:
 716         //case QEvent::HoverMove:
 717         //case QEvent::StatusTip:
 718         //case QEvent::DragEnter:
 719         //case QEvent::DragLeave:
 720         //case QEvent::Drop:
 721         //      break;
 722
 723         case QEvent::ShortcutOverride: {
 724                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 725                 if (d.tab_widget_->count() == 0) {
 726                         theLyXFunc().setLyXView(this);
 727                         boost::shared_ptr<GuiKeySymbol> sym(new GuiKeySymbol);
 728                         sym->set(ke);
 729                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 730                         e->accept();
 731                         return true;
 732                 }
 733                 if (ke->key() == Qt::Key_Tab || ke->key() == Qt::Key_Backtab) {
 734                         boost::shared_ptr<GuiKeySymbol> sym(new GuiKeySymbol);
 735                         sym->set(ke);
 736                         currentWorkArea()->processKeySym(sym, key_modifier::none);
 737                         e->accept();
 738                         return true;
 739                 }
 740         }
 741         default:
 742                 return QMainWindow::event(e);
 743         }
 744 }
 745
 746
 747 bool GuiViewBase::focusNextPrevChild(bool /*next*/)
 748 {
 749         setFocus();
 750         return true;
 751 }
 752
 753
 754 void GuiViewBase::show()
 755 {
 756         QMainWindow::setWindowTitle(qt_("LyX"));
 757         QMainWindow::show();
 758         updateFloatingGeometry();
 759 }
 760
 761
 762 void GuiViewBase::busy(bool yes)
 763 {
 764         if (d.tab_widget_->count()) {
 765                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 766                 BOOST_ASSERT(wa);
 767                 wa->setUpdatesEnabled(!yes);
 768                 if (yes)
 769                         wa->stopBlinkingCursor();
 770                 else
 771                         wa->startBlinkingCursor();
 772         }
 773
 774         if (yes)
 775                 QApplication::setOverrideCursor(Qt::WaitCursor);
 776         else
 777                 QApplication::restoreOverrideCursor();
 778 }
 779
 780
 781 Toolbars::ToolbarPtr GuiViewBase::makeToolbar(ToolbarInfo const & tbinfo, bool newline)
 782 {
 783         GuiToolbar * toolBar = new GuiToolbar(tbinfo, *this);
 784
 785         if (tbinfo.flags & ToolbarInfo::TOP) {
 786                 if (newline)
 787                         addToolBarBreak(Qt::TopToolBarArea);
 788                 addToolBar(Qt::TopToolBarArea, toolBar);
 789         }
 790
 791         if (tbinfo.flags & ToolbarInfo::BOTTOM) {
 792 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 793 #if (QT_VERSION >= 0x040202)
 794                 if (newline)
 795                         addToolBarBreak(Qt::BottomToolBarArea);
 796 #endif
 797                 addToolBar(Qt::BottomToolBarArea, toolBar);
 798         }
 799
 800         if (tbinfo.flags & ToolbarInfo::LEFT) {
 801 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 802 #if (QT_VERSION >= 0x040202)
 803                 if (newline)
 804                         addToolBarBreak(Qt::LeftToolBarArea);
 805 #endif
 806                 addToolBar(Qt::LeftToolBarArea, toolBar);
 807         }
 808
 809         if (tbinfo.flags & ToolbarInfo::RIGHT) {
 810 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 811 #if (QT_VERSION >= 0x040202)
 812                 if (newline)
 813                         addToolBarBreak(Qt::RightToolBarArea);
 814 #endif
 815                 addToolBar(Qt::RightToolBarArea, toolBar);
 816         }
 817
 818         // The following does not work so I cannot restore to exact toolbar location
 819         /*
 820         ToolbarSection::ToolbarInfo & tbinfo = LyX::ref().session().toolbars().load(tbinfo.name);
 821         toolBar->move(tbinfo.posx, tbinfo.posy);
 822         */
 823
 824         return Toolbars::ToolbarPtr(toolBar);
 825 }
 826
 827
 828 WorkArea * GuiViewBase::workArea(Buffer & buffer)
 829 {
 830         for (int i = 0; i != d.tab_widget_->count(); ++i) {
 831                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 832                 BOOST_ASSERT(wa);
 833                 if (&wa->bufferView().buffer() == &buffer)
 834                         return wa;
 835         }
 836         return 0;
 837 }
 838
 839
 840 WorkArea * GuiViewBase::addWorkArea(Buffer & buffer)
 841 {
 842         GuiWorkArea * wa = new GuiWorkArea(buffer, *this);
 843         wa->setUpdatesEnabled(false);
 844         d.tab_widget_->addTab(wa, toqstr(makeDisplayPath(buffer.fileName(), 30)));
 845         wa->bufferView().updateMetrics(false);
 846         if (d.stack_widget_)
 847                 d.stack_widget_->setCurrentWidget(d.tab_widget_);
 848         // Hide tabbar if there's only one tab.
 849         d.tab_widget_->showBar(d.tab_widget_->count() > 1);
 850         return wa;
 851 }
 852
 853
 854 WorkArea * GuiViewBase::currentWorkArea()
 855 {
 856         if (d.tab_widget_->count() == 0)
 857                 return 0;
 858         BOOST_ASSERT(dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget()));
 859         return dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 860 }
 861
 862
 863 WorkArea const * GuiViewBase::currentWorkArea() const
 864 {
 865         if (d.tab_widget_->count() == 0)
 866                 return 0;
 867         BOOST_ASSERT(dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget()));
 868         return dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget());
 869 }
 870
 871
 872 void GuiViewBase::setCurrentWorkArea(WorkArea * work_area)
 873 {
 874         BOOST_ASSERT(work_area);
 875
 876         // Changing work area can result from opening a file so
 877         // update the toc in any case.
 878         updateToc();
 879
 880         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(work_area);
 881         BOOST_ASSERT(wa);
 882         if (wa != d.tab_widget_->currentWidget())
 883                 // Switch to the work area.
 884                 d.tab_widget_->setCurrentWidget(wa);
 885         else
 886                 // Make sure the work area is up to date.
 887                 currentTabChanged(d.tab_widget_->currentIndex());
 888         wa->setFocus();
 889 }
 890
 891
 892 void GuiViewBase::removeWorkArea(WorkArea * work_area)
 893 {
 894         BOOST_ASSERT(work_area);
 895         if (work_area == currentWorkArea()) {
 896                 disconnectBuffer();
 897                 disconnectBufferView();
 898         }
 899
 900         // removing a work area often results from closing a file so
 901         // update the toc in any case.
 902         updateToc();
 903
 904         GuiWorkArea * gwa = dynamic_cast<GuiWorkArea *>(work_area);
 905         gwa->setUpdatesEnabled(false);
 906         BOOST_ASSERT(gwa);
 907         int index = d.tab_widget_->indexOf(gwa);
 908         d.tab_widget_->removeTab(index);
 909
 910         delete gwa;
 911
 912         if (d.tab_widget_->count()) {
 913                 // make sure the next work area is enabled.
 914                 d.tab_widget_->currentWidget()->setUpdatesEnabled(true);
 915                 // Hide tabbar if there's only one tab.
 916                 d.tab_widget_->showBar(d.tab_widget_->count() > 1);
 917                 return;
 918         }
 919
 920         getDialogs().hideBufferDependent();
 921         if (d.stack_widget_) {
 922                 // No more work area, switch to the background widget.
 923                 d.setBackground();
 924         }
 925 }
 926
 927
 928 void GuiViewBase::showMiniBuffer(bool visible)
 929 {
 930         Toolbar * t = toolbars_->display("minibuffer", visible);
 931         if (t)
 932                 t->focusCommandBuffer();
 933 }
 934
 935
 936 void GuiViewBase::openMenu(docstring const & name)
 937 {
 938         d.menubar_->openByName(name);
 939 }
 940
 941 } // namespace frontend
 942 } // namespace lyx
 943
 944 #include "GuiView_moc.cpp"