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 "QKeySymbol.h"
  21 #include "QLMenubar.h"
  22 #include "QLToolbar.h"
  23 #include "QCommandBuffer.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 "BufferView.h"
  38 #include "BufferList.h"
  39 #include "callback.h"
  40 #include "debug.h"
  41 #include "FuncRequest.h"
  42 #include "LyX.h"
  43 #include "LyXFunc.h"
  44 #include "LyXRC.h"
  45 #include "MenuBackend.h"
  46 #include "Session.h"
  47 #include "version.h"
  48
  49 #include <QAction>
  50 #include <QApplication>
  51 #include <QCloseEvent>
  52 #include <QDesktopWidget>
  53 #include <QDragEnterEvent>
  54 #include <QDropEvent>
  55 #include <QList>
  56 #include <QMimeData>
  57 #include <QPainter>
  58 #include <QPixmap>
  59 #include <QPushButton>
  60 #include <QStackedWidget>
  61 #include <QStatusBar>
  62 #include <QTabBar>
  63 #include <QToolBar>
  64 #include <QTabWidget>
  65 #include <QUrl>
  66
  67 #include <boost/bind.hpp>
  68 #include <boost/shared_ptr.hpp>
  69 #include <boost/current_function.hpp>
  70
  71 using std::endl;
  72 using std::string;
  73 using std::vector;
  74
  75 namespace lyx {
  76
  77 using support::FileName;
  78 using support::libFileSearch;
  79 using support::makeDisplayPath;
  80
  81 namespace frontend {
  82
  83 namespace {
  84
  85 int const statusbar_timer_value = 3000;
  86
  87 class BackgroundWidget: public QWidget
  88 {
  89 public:
  90         BackgroundWidget(QString const & file, QString const & text)
  91         {
  92                 splash_ = new QPixmap(file);
  93                 if (!splash_) {
  94                         lyxerr << "could not load splash screen: '" << fromqstr(file) << "'" << endl;
  95                         return;
  96                 }
  97
  98                 QPainter pain(splash_);
  99                 pain.setPen(QColor(255, 255, 0));
 100                 QFont font;
 101                 // The font used to display the version info
 102                 font.setStyleHint(QFont::SansSerif);
 103                 font.setWeight(QFont::Bold);
 104                 font.setPointSize(convert<int>(lyxrc.font_sizes[Font::SIZE_LARGE]));
 105                 pain.setFont(font);
 106                 pain.drawText(260, 270, text);
 107         }
 108
 109         void paintEvent(QPaintEvent * ev)
 110         {
 111                 if (!splash_)
 112                         return;
 113
 114                 int x = (width() - splash_->width()) / 2;
 115                 int y = (height() - splash_->height()) / 2;
 116                 QPainter pain(this);
 117                 pain.drawPixmap(x, y, *splash_);
 118         }
 119
 120 private:
 121         QPixmap * splash_;
 122 };
 123
 124
 125 class TabWidget: public QTabWidget {
 126 public:
 127         void showBar(bool show) { tabBar()->setVisible(show); }
 128 };
 129
 130
 131 } // namespace anon
 132
 133
 134 struct GuiView::GuiViewPrivate
 135 {
 136         string cur_title;
 137
 138         int posx_offset;
 139         int posy_offset;
 140
 141         TabWidget * tab_widget_;
 142         QStackedWidget * stack_widget_;
 143         BackgroundWidget * bg_widget_;
 144         /// view's menubar
 145         QLMenubar * menubar_;
 146
 147         GuiViewPrivate() : posx_offset(0), posy_offset(0)
 148         {}
 149
 150         unsigned int smallIconSize;
 151         unsigned int normalIconSize;
 152         unsigned int bigIconSize;
 153         // static needed by "New Window"
 154         static unsigned int lastIconSize;
 155
 156         QMenu* toolBarPopup(GuiView *parent)
 157         {
 158                 // FIXME: translation
 159                 QMenu* menu = new QMenu(parent);
 160                 QActionGroup *iconSizeGroup = new QActionGroup(parent);
 161
 162                 QAction *smallIcons = new QAction(iconSizeGroup);
 163                 smallIcons->setText(qt_("Small-sized icons"));
 164                 smallIcons->setCheckable(true);
 165                 QObject::connect(smallIcons, SIGNAL(triggered()), parent, SLOT(smallSizedIcons()));
 166                 menu->addAction(smallIcons);
 167
 168                 QAction *normalIcons = new QAction(iconSizeGroup);
 169                 normalIcons->setText(qt_("Normal-sized icons"));
 170                 normalIcons->setCheckable(true);
 171                 QObject::connect(normalIcons, SIGNAL(triggered()), parent, SLOT(normalSizedIcons()));
 172                 menu->addAction(normalIcons);
 173
 174                 QAction *bigIcons = new QAction(iconSizeGroup);
 175                 bigIcons->setText(qt_("Big-sized icons"));
 176                 bigIcons->setCheckable(true);
 177                 QObject::connect(bigIcons, SIGNAL(triggered()), parent, SLOT(bigSizedIcons()));
 178                 menu->addAction(bigIcons);
 179
 180                 unsigned int cur = parent->iconSize().width();
 181                 if ( cur == parent->d.smallIconSize)
 182                         smallIcons->setChecked(true);
 183                 else if (cur == parent->d.normalIconSize)
 184                         normalIcons->setChecked(true);
 185                 else if (cur == parent->d.bigIconSize)
 186                         bigIcons->setChecked(true);
 187
 188                 return menu;
 189         }
 190
 191         void initBackground()
 192         {
 193                 bg_widget_ = 0;
 194                 LYXERR(Debug::GUI) << "show banner: " << lyxrc.show_banner << endl;
 195                 /// The text to be written on top of the pixmap
 196                 QString const text = lyx_version ? QString(lyx_version) : qt_("unknown version");
 197                 FileName const file = support::libFileSearch("images", "banner", "png");
 198                 if (file.empty())
 199                         return;
 200
 201                 bg_widget_ = new BackgroundWidget(toqstr(file.absFilename()), text);
 202         }
 203
 204         void setBackground()
 205         {
 206                 if (!bg_widget_)
 207                         return;
 208
 209                 stack_widget_->setCurrentWidget(bg_widget_);
 210                 bg_widget_->setUpdatesEnabled(true);
 211         }
 212 };
 213
 214
 215 unsigned int GuiView::GuiViewPrivate::lastIconSize = 0;
 216
 217
 218 GuiView::GuiView(int id)
 219         : QMainWindow(), LyXView(id), commandbuffer_(0), quitting_by_menu_(false),
 220           d(*new GuiViewPrivate)
 221 {
 222         // Qt bug? signal lastWindowClosed does not work
 223         setAttribute(Qt::WA_QuitOnClose, false);
 224         setAttribute(Qt::WA_DeleteOnClose, true);
 225
 226         // hardcode here the platform specific icon size
 227         d.smallIconSize = 14;   // scaling problems
 228         d.normalIconSize = 20;  // ok, default
 229         d.bigIconSize = 26;             // better for some math icons
 230
 231 #ifndef Q_WS_MACX
 232         //  assign an icon to main form. We do not do it under Qt/Mac,
 233         //  since the icon is provided in the application bundle.
 234         FileName const iconname = libFileSearch("images", "lyx", "xpm");
 235         if (!iconname.empty())
 236                 setWindowIcon(QPixmap(toqstr(iconname.absFilename())));
 237 #endif
 238
 239         d.tab_widget_ = new TabWidget;
 240
 241         QPushButton * closeTabButton = new QPushButton(this);
 242         FileName const file = support::libFileSearch("images", "closetab", "xpm");
 243         if (!file.empty()) {
 244                 QPixmap pm(toqstr(file.absFilename()));
 245                 closeTabButton->setIcon(QIcon(pm));
 246                 closeTabButton->setMaximumSize(pm.size());
 247                 closeTabButton->setFlat(true);
 248         } else {
 249                 closeTabButton->setText("Close");
 250         }
 251         closeTabButton->setCursor(Qt::ArrowCursor);
 252         closeTabButton->setToolTip(tr("Close tab"));
 253         closeTabButton->setEnabled(true);
 254
 255         QObject::connect(d.tab_widget_, SIGNAL(currentChanged(int)),
 256                         this, SLOT(currentTabChanged(int)));
 257         QObject::connect(closeTabButton, SIGNAL(clicked()),
 258                         this, SLOT(closeCurrentTab()));
 259
 260         d.tab_widget_->setCornerWidget(closeTabButton);
 261 #if QT_VERSION >= 0x040200
 262         d.tab_widget_->setUsesScrollButtons(true);
 263 #endif
 264
 265         d.initBackground();
 266         if (d.bg_widget_) {
 267                 lyxerr << "stack widget!" << endl;
 268                 d.stack_widget_ = new QStackedWidget;
 269                 d.stack_widget_->addWidget(d.bg_widget_);
 270                 d.stack_widget_->addWidget(d.tab_widget_);
 271                 setCentralWidget(d.stack_widget_);
 272         } else {
 273                 d.stack_widget_ = 0;
 274                 setCentralWidget(d.tab_widget_);
 275         }
 276
 277         // For Drag&Drop.
 278         setAcceptDrops(true);
 279 }
 280
 281
 282 GuiView::~GuiView()
 283 {
 284         delete d.menubar_;
 285         delete &d;
 286 }
 287
 288
 289 void GuiView::close()
 290 {
 291         quitting_by_menu_ = true;
 292         QMainWindow::close();
 293         quitting_by_menu_ = false;
 294 }
 295
 296
 297 void GuiView::setFocus()
 298 {
 299         if (d.tab_widget_->count())
 300                 d.tab_widget_->currentWidget()->setFocus();
 301 }
 302
 303
 304 QMenu* GuiView::createPopupMenu()
 305 {
 306         return d.toolBarPopup(this);
 307 }
 308
 309
 310 void GuiView::init()
 311 {
 312         d.menubar_ = new QLMenubar(this, menubackend);
 313
 314         toolbars_->init();
 315
 316         statusBar()->setSizeGripEnabled(true);
 317
 318         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 319                 this, SLOT(update_view_state_qt()));
 320
 321         if (d.stack_widget_)
 322                 d.stack_widget_->setCurrentWidget(d.bg_widget_);
 323 }
 324
 325
 326 void GuiView::closeEvent(QCloseEvent * close_event)
 327 {
 328         // we may have been called through the close window button
 329         // which bypasses the LFUN machinery.
 330         if (!quitting_by_menu_ && theApp()->gui().viewIds().size() == 1) {
 331                 if (!theBufferList().quitWriteAll()) {
 332                         close_event->ignore();
 333                         return;
 334                 }
 335         }
 336
 337         // Make sure that no LFUN use this close to be closed View.
 338         theLyXFunc().setLyXView(0);
 339         // Make sure the timer time out will not trigger a statusbar update.
 340         statusbar_timer_.stop();
 341
 342         theApp()->gui().unregisterView(id());
 343         if (!theApp()->gui().viewIds().empty()) {
 344                 // Just close the window and do nothing else if this is not the
 345                 // last window.
 346                 close_event->accept();
 347                 return;
 348         }
 349
 350         quitting = true;
 351
 352         // this is the place where we leave the frontend.
 353         // it is the only point at which we start quitting.
 354         saveGeometry();
 355         close_event->accept();
 356         // quit the event loop
 357         qApp->quit();
 358 }
 359
 360
 361 void GuiView::dragEnterEvent(QDragEnterEvent * event)
 362 {
 363         if (event->mimeData()->hasUrls())
 364                 event->accept();
 365         /// \todo Ask lyx-devel is this is enough:
 366         /// if (event->mimeData()->hasFormat("text/plain"))
 367         ///     event->acceptProposedAction();
 368 }
 369
 370
 371 void GuiView::dropEvent(QDropEvent* event)
 372 {
 373         QList<QUrl> files = event->mimeData()->urls();
 374         if (files.isEmpty())
 375                 return;
 376
 377         LYXERR(Debug::GUI) << BOOST_CURRENT_FUNCTION
 378                 << " got URLs!" << endl;
 379         for (int i = 0; i!=files.size(); ++i) {
 380                 string const file = support::os::internal_path(fromqstr(
 381                         files.at(i).toLocalFile()));
 382                 if (!file.empty())
 383                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 384         }
 385 }
 386
 387
 388 void GuiView::saveGeometry()
 389 {
 390         static bool done = false;
 391         if (done)
 392                 return;
 393         else
 394                 done = true;
 395
 396         // FIXME:
 397         // change the ifdef to 'geometry = normalGeometry();' only
 398         // when Trolltech has fixed the broken normalGeometry on X11:
 399         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 400         // Then also the moveEvent, resizeEvent, and the
 401         // code for floatingGeometry_ can be removed;
 402         // adjust GuiView::setGeometry()
 403
 404         QRect normal_geometry;
 405         int maximized;
 406 #ifdef Q_WS_WIN
 407         normal_geometry = normalGeometry();
 408         if (isMaximized()) {
 409                 maximized = CompletelyMaximized;
 410         } else {
 411                 maximized = NotMaximized;
 412         }
 413 #else
 414         normal_geometry = updateFloatingGeometry();
 415
 416         QDesktopWidget& dw = *qApp->desktop();
 417         QRect desk = dw.availableGeometry(dw.primaryScreen());
 418         // Qt bug on Linux: load completely maximized, vert max. save-> frameGeometry().height() is wrong
 419         if (isMaximized() && desk.width() <= frameGeometry().width() && desk.height() <= frameGeometry().height()) {
 420                 maximized = CompletelyMaximized;
 421                 // maximizing does not work when the window is allready hor. or vert. maximized
 422                 // Tested only on KDE
 423                 int dh = frameGeometry().height() - height();
 424                 if (desk.height() <= normal_geometry.height() + dh)
 425                         normal_geometry.setHeight(normal_geometry.height() - 1);
 426                 int dw = frameGeometry().width() - width();
 427                 if (desk.width() <= normal_geometry.width() + dw)
 428                         normal_geometry.setWidth(normal_geometry.width() - 1);
 429         } else if (desk.height() <= frameGeometry().height()) {
 430                 maximized = VerticallyMaximized;
 431         } else if (desk.width() <= frameGeometry().width()) {
 432                 maximized = HorizontallyMaximized;
 433         } else {
 434                 maximized = NotMaximized;
 435         }
 436
 437
 438 #endif
 439         // save windows size and position
 440         Session & session = LyX::ref().session();
 441         session.sessionInfo().save("WindowWidth", convert<string>(normal_geometry.width()));
 442         session.sessionInfo().save("WindowHeight", convert<string>(normal_geometry.height()));
 443         session.sessionInfo().save("WindowMaximized", convert<string>(maximized));
 444         session.sessionInfo().save("IconSizeXY", convert<string>(iconSize().width()));
 445         if (lyxrc.geometry_xysaved) {
 446                 session.sessionInfo().save("WindowPosX", convert<string>(normal_geometry.x() + d.posx_offset));
 447                 session.sessionInfo().save("WindowPosY", convert<string>(normal_geometry.y() + d.posy_offset));
 448         }
 449         toolbars_->saveToolbarInfo();
 450 }
 451
 452
 453 void GuiView::setGeometry(unsigned int width,
 454                           unsigned int height,
 455                           int posx, int posy,
 456                           int maximized,
 457                           unsigned int iconSizeXY,
 458                           const string & geometryArg)
 459 {
 460         // use last value (not at startup)
 461         if (d.lastIconSize != 0)
 462                 setIconSize(d.lastIconSize);
 463         else if (iconSizeXY != 0)
 464                 setIconSize(iconSizeXY);
 465         else
 466                 setIconSize(d.normalIconSize);
 467
 468         // only true when the -geometry option was NOT used
 469         if (width != 0 && height != 0) {
 470                 if (posx != -1 && posy != -1) {
 471                         // if there are startup positioning problems:
 472                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 473                         QDesktopWidget& dw = *qApp->desktop();
 474                         if (dw.isVirtualDesktop()) {
 475                                 if(!dw.geometry().contains(posx, posy)) {
 476                                         posx = 50;
 477                                         posy = 50;
 478                                 }
 479                         } else {
 480                                 // Which system doesn't use a virtual desktop?
 481                                 // TODO save also last screen number and check if it is still availabe.
 482                         }
 483 #ifdef Q_WS_WIN
 484                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 485                         QWidget::setGeometry(posx, posy, width, height);
 486 #else
 487                         resize(width, height);
 488                         move(posx, posy);
 489 #endif
 490                 } else {
 491                         resize(width, height);
 492                 }
 493
 494                 // remember original size
 495                 floatingGeometry_ = QRect(posx, posy, width, height);
 496
 497                 if (maximized != NotMaximized) {
 498                         if (maximized == CompletelyMaximized) {
 499                                 setWindowState(Qt::WindowMaximized);
 500                         } else {
 501 #ifndef Q_WS_WIN
 502                                 // TODO How to set by the window manager?
 503                                 //      setWindowState(Qt::WindowVerticallyMaximized);
 504                                 //      is not possible
 505                                 QDesktopWidget& dw = *qApp->desktop();
 506                                 QRect desk = dw.availableGeometry(dw.primaryScreen());
 507                                 if (maximized == VerticallyMaximized)
 508                                         resize(width, desk.height());
 509                                 if (maximized == HorizontallyMaximized)
 510                                         resize(desk.width(), height);
 511 #endif
 512                         }
 513                 }
 514         }
 515         else
 516         {
 517                 // FIXME: move this code into parse_geometry() (LyX.cpp)
 518 #ifdef Q_WS_WIN
 519                 int x, y;
 520                 int w, h;
 521                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 522                 re.indexIn(toqstr(geometryArg.c_str()));
 523                 w = re.cap(1).toInt();
 524                 h = re.cap(2).toInt();
 525                 x = re.cap(3).toInt();
 526                 y = re.cap(4).toInt();
 527                 QWidget::setGeometry( x, y, w, h );
 528 #else
 529                 // silence warning
 530                 (void)geometryArg;
 531 #endif
 532         }
 533
 534         d.setBackground();
 535
 536         show();
 537
 538         // For an unknown reason, the Window title update is not effective for
 539         // the second windows up until it is shown on screen (Qt bug?).
 540         updateWindowTitle();
 541
 542         // after show geometry() has changed (Qt bug?)
 543         // we compensate the drift when storing the position
 544         d.posx_offset = 0;
 545         d.posy_offset = 0;
 546         if (width != 0 && height != 0)
 547                 if (posx != -1 && posy != -1) {
 548 #ifdef Q_WS_WIN
 549                         d.posx_offset = posx - normalGeometry().x();
 550                         d.posy_offset = posy - normalGeometry().y();
 551 #else
 552 #ifndef Q_WS_MACX
 553                         if (maximized == NotMaximized) {
 554                                 d.posx_offset = posx - geometry().x();
 555                                 d.posy_offset = posy - geometry().y();
 556                         }
 557 #endif
 558 #endif
 559                 }
 560 }
 561
 562
 563 void GuiView::setWindowTitle(docstring const & t, docstring const & it)
 564 {
 565         QString title = windowTitle();
 566         QString new_title = toqstr(t);
 567         if (title != new_title) {
 568                 QMainWindow::setWindowTitle(new_title);
 569                 QMainWindow::setWindowIconText(toqstr(it));
 570         }
 571 }
 572
 573
 574 void GuiView::addCommandBuffer(QToolBar * toolbar)
 575 {
 576         commandbuffer_ = new QCommandBuffer(this);
 577         toolbar->addWidget(commandbuffer_);
 578 }
 579
 580
 581 void GuiView::message(docstring const & str)
 582 {
 583         statusBar()->showMessage(toqstr(str));
 584         statusbar_timer_.stop();
 585         statusbar_timer_.start(statusbar_timer_value);
 586 }
 587
 588
 589 void GuiView::clearMessage()
 590 {
 591         update_view_state_qt();
 592 }
 593
 594
 595 void GuiView::setIconSize(unsigned int size)
 596 {
 597         d.lastIconSize = size;
 598         QMainWindow::setIconSize(QSize(size, size));
 599 }
 600
 601
 602 void GuiView::smallSizedIcons()
 603 {
 604         setIconSize(d.smallIconSize);
 605 }
 606
 607
 608 void GuiView::normalSizedIcons()
 609 {
 610         setIconSize(d.normalIconSize);
 611 }
 612
 613
 614 void GuiView::bigSizedIcons()
 615 {
 616         setIconSize(d.bigIconSize);
 617 }
 618
 619
 620 void GuiView::update_view_state_qt()
 621 {
 622         if (!hasFocus())
 623                 return;
 624         theLyXFunc().setLyXView(this);
 625         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 626         statusbar_timer_.stop();
 627 }
 628
 629
 630 void GuiView::closeCurrentTab()
 631 {
 632         dispatch(FuncRequest(LFUN_BUFFER_CLOSE));
 633 }
 634
 635
 636 void GuiView::currentTabChanged(int i)
 637 {
 638         disconnectBuffer();
 639         disconnectBufferView();
 640         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 641         BOOST_ASSERT(wa);
 642         BufferView & bv = wa->bufferView();
 643         connectBufferView(bv);
 644         connectBuffer(bv.buffer());
 645         bv.updateMetrics(false);
 646         bv.cursor().fixIfBroken();
 647         wa->setUpdatesEnabled(true);
 648         wa->redraw();
 649         wa->setFocus();
 650
 651         updateToc();
 652         // Buffer-dependent dialogs should be updated or
 653         // hidden. This should go here because some dialogs (eg ToC)
 654         // require bv_->text.
 655         getDialogs().updateBufferDependent(true);
 656         updateToolbars();
 657         updateLayoutChoice();
 658         updateWindowTitle();
 659         updateStatusBar();
 660
 661         lyxerr << "currentTabChanged " << i
 662                 << "File" << bv.buffer().fileName() << endl;
 663 }
 664
 665
 666 void GuiView::updateStatusBar()
 667 {
 668         // let the user see the explicit message
 669         if (statusbar_timer_.isActive())
 670                 return;
 671
 672         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 673 }
 674
 675
 676 void GuiView::activated(FuncRequest const & func)
 677 {
 678         dispatch(func);
 679 }
 680
 681
 682 bool GuiView::hasFocus() const
 683 {
 684         return qApp->activeWindow() == this;
 685 }
 686
 687
 688 QRect  GuiView::updateFloatingGeometry()
 689 {
 690         QDesktopWidget& dw = *qApp->desktop();
 691         QRect desk = dw.availableGeometry(dw.primaryScreen());
 692         // remember only non-maximized sizes
 693         if (!isMaximized() && desk.width() > frameGeometry().width() && desk.height() > frameGeometry().height()) {
 694                 floatingGeometry_ = QRect(x(), y(), width(), height());
 695         }
 696         return floatingGeometry_;
 697 }
 698
 699
 700 void GuiView::resizeEvent(QResizeEvent *)
 701 {
 702         updateFloatingGeometry();
 703 }
 704
 705
 706 void GuiView::moveEvent(QMoveEvent *)
 707 {
 708         updateFloatingGeometry();
 709 }
 710
 711
 712 bool GuiView::event(QEvent * e)
 713 {
 714         switch (e->type())
 715         {
 716         // Useful debug code:
 717         //case QEvent::WindowActivate:
 718         //case QEvent::ActivationChange:
 719         //case QEvent::WindowDeactivate:
 720         //case QEvent::Paint:
 721         //case QEvent::Enter:
 722         //case QEvent::Leave:
 723         //case QEvent::HoverEnter:
 724         //case QEvent::HoverLeave:
 725         //case QEvent::HoverMove:
 726         //case QEvent::StatusTip:
 727         //case QEvent::DragEnter:
 728         //case QEvent::DragLeave:
 729         //case QEvent::Drop:
 730         //      break;
 731
 732         case QEvent::ShortcutOverride: {
 733                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 734                 if (d.tab_widget_->count() == 0) {
 735                         theLyXFunc().setLyXView(this);
 736                         boost::shared_ptr<QKeySymbol> sym(new QKeySymbol);
 737                         sym->set(ke);
 738                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 739                         e->accept();
 740                         return true;
 741                 }
 742                 if (ke->key() == Qt::Key_Tab || ke->key() == Qt::Key_Backtab) {
 743                         boost::shared_ptr<QKeySymbol> sym(new QKeySymbol);
 744                         sym->set(ke);
 745                         currentWorkArea()->processKeySym(sym, key_modifier::none);
 746                         e->accept();
 747                         return true;
 748                 }
 749         }
 750         default:
 751                 return QMainWindow::event(e);
 752         }
 753 }
 754
 755
 756 bool GuiView::focusNextPrevChild(bool /*next*/)
 757 {
 758         setFocus();
 759         return true;
 760 }
 761
 762
 763 void GuiView::show()
 764 {
 765         QMainWindow::setWindowTitle(qt_("LyX"));
 766         QMainWindow::show();
 767         updateFloatingGeometry();
 768 }
 769
 770
 771 void GuiView::busy(bool yes)
 772 {
 773         if (d.tab_widget_->count()) {
 774                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 775                 BOOST_ASSERT(wa);
 776                 wa->setUpdatesEnabled(!yes);
 777                 if (yes)
 778                         wa->stopBlinkingCursor();
 779                 else
 780                         wa->startBlinkingCursor();
 781         }
 782
 783         if (yes)
 784                 QApplication::setOverrideCursor(Qt::WaitCursor);
 785         else
 786                 QApplication::restoreOverrideCursor();
 787 }
 788
 789
 790 Toolbars::ToolbarPtr GuiView::makeToolbar(ToolbarInfo const & tbinfo, bool newline)
 791 {
 792         QLToolbar * Tb = new QLToolbar(tbinfo, *this);
 793
 794         if (tbinfo.flags & ToolbarInfo::TOP) {
 795                 if (newline)
 796                         addToolBarBreak(Qt::TopToolBarArea);
 797                 addToolBar(Qt::TopToolBarArea, Tb);
 798         }
 799
 800         if (tbinfo.flags & ToolbarInfo::BOTTOM) {
 801 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 802 #if (QT_VERSION >= 0x040202)
 803                 if (newline)
 804                         addToolBarBreak(Qt::BottomToolBarArea);
 805 #endif
 806                 addToolBar(Qt::BottomToolBarArea, Tb);
 807         }
 808
 809         if (tbinfo.flags & ToolbarInfo::LEFT) {
 810 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 811 #if (QT_VERSION >= 0x040202)
 812                 if (newline)
 813                         addToolBarBreak(Qt::LeftToolBarArea);
 814 #endif
 815                 addToolBar(Qt::LeftToolBarArea, Tb);
 816         }
 817
 818         if (tbinfo.flags & ToolbarInfo::RIGHT) {
 819 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 820 #if (QT_VERSION >= 0x040202)
 821                 if (newline)
 822                         addToolBarBreak(Qt::RightToolBarArea);
 823 #endif
 824                 addToolBar(Qt::RightToolBarArea, Tb);
 825         }
 826
 827         // The following does not work so I cannot restore to exact toolbar location
 828         /*
 829         ToolbarSection::ToolbarInfo & tbinfo = LyX::ref().session().toolbars().load(tbinfo.name);
 830         Tb->move(tbinfo.posx, tbinfo.posy);
 831         */
 832
 833         return Toolbars::ToolbarPtr(Tb);
 834 }
 835
 836
 837 WorkArea * GuiView::workArea(Buffer & buffer)
 838 {
 839         for (int i = 0; i != d.tab_widget_->count(); ++i) {
 840                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 841                 BOOST_ASSERT(wa);
 842                 if (&wa->bufferView().buffer() == &buffer)
 843                         return wa;
 844         }
 845         return 0;
 846 }
 847
 848
 849 WorkArea * GuiView::addWorkArea(Buffer & buffer)
 850 {
 851         GuiWorkArea * wa = new GuiWorkArea(buffer, *this);
 852         d.tab_widget_->addTab(wa, toqstr(makeDisplayPath(buffer.fileName(), 30)));
 853         wa->bufferView().updateMetrics(false);
 854         if (d.stack_widget_)
 855                 d.stack_widget_->setCurrentWidget(d.tab_widget_);
 856         // Hide tabbar if there's only one tab.
 857         d.tab_widget_->showBar(d.tab_widget_->count() > 1);
 858         return wa;
 859 }
 860
 861
 862 WorkArea * GuiView::currentWorkArea()
 863 {
 864         if (d.tab_widget_->count() == 0)
 865                 return 0;
 866         BOOST_ASSERT(dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget()));
 867         return dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 868 }
 869
 870
 871 WorkArea const * GuiView::currentWorkArea() const
 872 {
 873         if (d.tab_widget_->count() == 0)
 874                 return 0;
 875         BOOST_ASSERT(dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget()));
 876         return dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget());
 877 }
 878
 879
 880 void GuiView::setCurrentWorkArea(WorkArea * work_area)
 881 {
 882         BOOST_ASSERT(work_area);
 883
 884         // Changing work area can result from opening a file so
 885         // update the toc in any case.
 886         updateToc();
 887
 888         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(work_area);
 889         BOOST_ASSERT(wa);
 890         if (wa != d.tab_widget_->currentWidget())
 891                 // Switch to the work area.
 892                 d.tab_widget_->setCurrentWidget(wa);
 893         else
 894                 // Make sure the work area is up to date.
 895                 currentTabChanged(d.tab_widget_->currentIndex());
 896         wa->setFocus();
 897 }
 898
 899
 900 void GuiView::removeWorkArea(WorkArea * work_area)
 901 {
 902         BOOST_ASSERT(work_area);
 903         if (work_area == currentWorkArea()) {
 904                 disconnectBuffer();
 905                 disconnectBufferView();
 906         }
 907
 908         // removing a work area often results from closing a file so
 909         // update the toc in any case.
 910         updateToc();
 911
 912         GuiWorkArea * gwa = dynamic_cast<GuiWorkArea *>(work_area);
 913         BOOST_ASSERT(gwa);
 914         int index = d.tab_widget_->indexOf(gwa);
 915         d.tab_widget_->removeTab(index);
 916
 917         delete gwa;
 918
 919         if (d.tab_widget_->count()) {
 920                 // make sure the next work area is enabled.
 921                 d.tab_widget_->currentWidget()->setUpdatesEnabled(true);
 922                 // Hide tabbar if there's only one tab.
 923                 d.tab_widget_->showBar(d.tab_widget_->count() > 1);
 924                 return;
 925         }
 926
 927         getDialogs().hideBufferDependent();
 928         if (d.stack_widget_) {
 929                 // No more work area, switch to the background widget.
 930                 d.setBackground();
 931         }
 932 }
 933
 934
 935 void GuiView::showMiniBuffer(bool visible)
 936 {
 937         if (!commandbuffer_)
 938                 return;
 939
 940         toolbars_->display("minibuffer", visible);
 941         commandbuffer_->focus_command();
 942 }
 943
 944
 945 void GuiView::openMenu(docstring const & name)
 946 {
 947         d.menubar_->openByName(name);
 948 }
 949
 950 } // namespace frontend
 951 } // namespace lyx
 952
 953 #include "GuiView_moc.cpp"