src/frontends/qt4/GuiView.cpp

   1 /**
   2  * \file GuiView.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  * \author John Levon
   8  * \author Abdelrazak Younes
   9  * \author Peter Kümmel
  10  *
  11  * Full author contact details are available in file CREDITS.
  12  */
  13
  14 #include <config.h>
  15
  16 #include "GuiView.h"
  17
  18 #include "GuiImplementation.h"
  19 #include "GuiWorkArea.h"
  20 #include "GuiKeySymbol.h"
  21 #include "GuiMenubar.h"
  22 #include "GuiToolbar.h"
  23 #include "GuiToolbars.h"
  24 #include "qt_helpers.h"
  25
  26 #include "frontends/Application.h"
  27 #include "frontends/Dialogs.h"
  28 #include "frontends/Gui.h"
  29 #include "frontends/WorkArea.h"
  30
  31 #include "support/filetools.h"
  32 #include "support/convert.h"
  33 #include "support/lstrings.h"
  34 #include "support/os.h"
  35
  36 #include "Buffer.h"
  37 #include "BufferParams.h"
  38 #include "BufferView.h"
  39 #include "BufferList.h"
  40 #include "Cursor.h"
  41 #include "debug.h"
  42 #include "FuncRequest.h"
  43 #include "Layout.h"
  44 #include "LyX.h"
  45 #include "LyXFunc.h"
  46 #include "LyXRC.h"
  47 #include "MenuBackend.h"
  48 #include "Paragraph.h"
  49 #include "Session.h"
  50 #include "ToolbarBackend.h"
  51 #include "version.h"
  52
  53 #include <QAction>
  54 #include <QApplication>
  55 #include <QCloseEvent>
  56 #include <QDesktopWidget>
  57 #include <QDragEnterEvent>
  58 #include <QDropEvent>
  59 #include <QList>
  60 #include <QMenu>
  61 #include <QPainter>
  62 #include <QPixmap>
  63 #include <QPushButton>
  64 #include <QStackedWidget>
  65 #include <QStatusBar>
  66 #include <QToolBar>
  67 #include <QUrl>
  68
  69 #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::makeDisplayPath;
  78
  79 extern bool quitting;
  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 *)
 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
 126
 127 struct GuiViewBase::GuiViewPrivate
 128 {
 129         string cur_title;
 130
 131         int posx_offset;
 132         int posy_offset;
 133
 134         TabWorkArea * tab_widget_;
 135         QStackedWidget * stack_widget_;
 136         BackgroundWidget * bg_widget_;
 137         /// view's menubar
 138         GuiMenubar * menubar_;
 139         /// view's toolbars
 140         GuiToolbars * toolbars_;
 141         ///
 142         docstring current_layout;
 143
 144         GuiViewPrivate() : posx_offset(0), posy_offset(0) {}
 145
 146         unsigned int smallIconSize;
 147         unsigned int normalIconSize;
 148         unsigned int bigIconSize;
 149         // static needed by "New Window"
 150         static unsigned int lastIconSize;
 151
 152         QMenu * toolBarPopup(GuiViewBase * parent)
 153         {
 154                 // FIXME: translation
 155                 QMenu * menu = new QMenu(parent);
 156                 QActionGroup * iconSizeGroup = new QActionGroup(parent);
 157
 158                 QAction * smallIcons = new QAction(iconSizeGroup);
 159                 smallIcons->setText(qt_("Small-sized icons"));
 160                 smallIcons->setCheckable(true);
 161                 QObject::connect(smallIcons, SIGNAL(triggered()), parent, SLOT(smallSizedIcons()));
 162                 menu->addAction(smallIcons);
 163
 164                 QAction * normalIcons = new QAction(iconSizeGroup);
 165                 normalIcons->setText(qt_("Normal-sized icons"));
 166                 normalIcons->setCheckable(true);
 167                 QObject::connect(normalIcons, SIGNAL(triggered()), parent, SLOT(normalSizedIcons()));
 168                 menu->addAction(normalIcons);
 169
 170                 QAction * bigIcons = new QAction(iconSizeGroup);
 171                 bigIcons->setText(qt_("Big-sized icons"));
 172                 bigIcons->setCheckable(true);
 173                 QObject::connect(bigIcons, SIGNAL(triggered()), parent, SLOT(bigSizedIcons()));
 174                 menu->addAction(bigIcons);
 175
 176                 unsigned int cur = parent->iconSize().width();
 177                 if ( cur == parent->d.smallIconSize)
 178                         smallIcons->setChecked(true);
 179                 else if (cur == parent->d.normalIconSize)
 180                         normalIcons->setChecked(true);
 181                 else if (cur == parent->d.bigIconSize)
 182                         bigIcons->setChecked(true);
 183
 184                 return menu;
 185         }
 186
 187         void initBackground()
 188         {
 189                 bg_widget_ = 0;
 190                 LYXERR(Debug::GUI) << "show banner: " << lyxrc.show_banner << endl;
 191                 /// The text to be written on top of the pixmap
 192                 QString const text = lyx_version ? QString(lyx_version) : qt_("unknown version");
 193                 bg_widget_ = new BackgroundWidget(":/images/banner.png", text);
 194         }
 195
 196         void setBackground()
 197         {
 198                 if (!bg_widget_)
 199                         return;
 200
 201                 stack_widget_->setCurrentWidget(bg_widget_);
 202                 bg_widget_->setUpdatesEnabled(true);
 203         }
 204 };
 205
 206
 207 unsigned int GuiViewBase::GuiViewPrivate::lastIconSize = 0;
 208
 209
 210 GuiViewBase::GuiViewBase(int id)
 211         : QMainWindow(), LyXView(id), quitting_by_menu_(false),
 212           d(*new GuiViewPrivate)
 213 {
 214         // Qt bug? signal lastWindowClosed does not work
 215         setAttribute(Qt::WA_QuitOnClose, false);
 216         setAttribute(Qt::WA_DeleteOnClose, true);
 217
 218         // hardcode here the platform specific icon size
 219         d.smallIconSize = 14;   // scaling problems
 220         d.normalIconSize = 20;  // ok, default
 221         d.bigIconSize = 26;             // better for some math icons
 222
 223 #ifndef Q_WS_MACX
 224         // assign an icon to main form. We do not do it under Qt/Mac,
 225         // since the icon is provided in the application bundle.
 226         setWindowIcon(QPixmap(":/images/lyx.png"));
 227 #endif
 228
 229         d.tab_widget_ = new TabWorkArea;
 230         QObject::connect(d.tab_widget_, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
 231                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
 232
 233         d.initBackground();
 234         if (d.bg_widget_) {
 235                 LYXERR(Debug::GUI) << "stack widget!" << endl;
 236                 d.stack_widget_ = new QStackedWidget;
 237                 d.stack_widget_->addWidget(d.bg_widget_);
 238                 d.stack_widget_->addWidget(d.tab_widget_);
 239                 setCentralWidget(d.stack_widget_);
 240         } else {
 241                 d.stack_widget_ = 0;
 242                 setCentralWidget(d.tab_widget_);
 243         }
 244
 245         // For Drag&Drop.
 246         setAcceptDrops(true);
 247 }
 248
 249
 250 GuiViewBase::~GuiViewBase()
 251 {
 252         delete d.menubar_;
 253         delete d.toolbars_;
 254         delete &d;
 255 }
 256
 257
 258 void GuiViewBase::close()
 259 {
 260         quitting_by_menu_ = true;
 261         d.tab_widget_->closeAll();
 262         QMainWindow::close();
 263         quitting_by_menu_ = false;
 264 }
 265
 266
 267 void GuiViewBase::setFocus()
 268 {
 269         if (d.tab_widget_->count())
 270                 d.tab_widget_->currentWidget()->setFocus();
 271 }
 272
 273
 274 QMenu* GuiViewBase::createPopupMenu()
 275 {
 276         return d.toolBarPopup(this);
 277 }
 278
 279
 280 void GuiViewBase::init()
 281 {
 282         // GuiToolbars *must* be initialised before GuiMenubar.
 283         d.toolbars_ = new GuiToolbars(*this);
 284         // FIXME: GuiToolbars::init() cannot be integrated in the ctor
 285         // because LyXFunc::getStatus() needs a properly initialized
 286         // GuiToolbars object (for LFUN_TOOLBAR_TOGGLE).
 287         d.toolbars_->init();
 288         d.menubar_ = new GuiMenubar(this, menubackend);
 289
 290         statusBar()->setSizeGripEnabled(true);
 291
 292         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 293                 this, SLOT(update_view_state_qt()));
 294
 295         if (d.stack_widget_)
 296                 d.stack_widget_->setCurrentWidget(d.bg_widget_);
 297 }
 298
 299
 300 void GuiViewBase::closeEvent(QCloseEvent * close_event)
 301 {
 302         // we may have been called through the close window button
 303         // which bypasses the LFUN machinery.
 304         if (!quitting_by_menu_ && theApp()->gui().viewIds().size() == 1) {
 305                 if (!theBufferList().quitWriteAll()) {
 306                         close_event->ignore();
 307                         return;
 308                 }
 309         }
 310
 311         // Make sure that no LFUN use this close to be closed View.
 312         theLyXFunc().setLyXView(0);
 313         // Make sure the timer time out will not trigger a statusbar update.
 314         statusbar_timer_.stop();
 315
 316         theApp()->gui().unregisterView(id());
 317         if (!theApp()->gui().viewIds().empty()) {
 318                 // Just close the window and do nothing else if this is not the
 319                 // last window.
 320                 close_event->accept();
 321                 return;
 322         }
 323
 324         quitting = true;
 325
 326         // this is the place where we leave the frontend.
 327         // it is the only point at which we start quitting.
 328         saveGeometry();
 329         close_event->accept();
 330         // quit the event loop
 331         qApp->quit();
 332 }
 333
 334
 335 void GuiViewBase::dragEnterEvent(QDragEnterEvent * event)
 336 {
 337         if (event->mimeData()->hasUrls())
 338                 event->accept();
 339         /// \todo Ask lyx-devel is this is enough:
 340         /// if (event->mimeData()->hasFormat("text/plain"))
 341         ///     event->acceptProposedAction();
 342 }
 343
 344
 345 void GuiViewBase::dropEvent(QDropEvent* event)
 346 {
 347         QList<QUrl> files = event->mimeData()->urls();
 348         if (files.isEmpty())
 349                 return;
 350
 351         LYXERR(Debug::GUI) << BOOST_CURRENT_FUNCTION
 352                 << " got URLs!" << endl;
 353         for (int i = 0; i != files.size(); ++i) {
 354                 string const file = support::os::internal_path(fromqstr(
 355                         files.at(i).toLocalFile()));
 356                 if (!file.empty())
 357                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 358         }
 359 }
 360
 361
 362 void GuiViewBase::saveGeometry()
 363 {
 364         static bool done = false;
 365         if (done)
 366                 return;
 367         else
 368                 done = true;
 369
 370         // FIXME:
 371         // change the ifdef to 'geometry = normalGeometry();' only
 372         // when Trolltech has fixed the broken normalGeometry on X11:
 373         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 374         // Then also the moveEvent, resizeEvent, and the
 375         // code for floatingGeometry_ can be removed;
 376         // adjust GuiViewBase::setGeometry()
 377
 378         QRect normal_geometry;
 379         int maximized;
 380 #ifdef Q_WS_WIN
 381         normal_geometry = normalGeometry();
 382         if (isMaximized()) {
 383                 maximized = CompletelyMaximized;
 384         } else {
 385                 maximized = NotMaximized;
 386         }
 387 #else
 388         normal_geometry = updateFloatingGeometry();
 389
 390         QDesktopWidget& dw = *qApp->desktop();
 391         QRect desk = dw.availableGeometry(dw.primaryScreen());
 392         // Qt bug on Linux: load completely maximized, vert max. save-> frameGeometry().height() is wrong
 393         if (isMaximized() && desk.width() <= frameGeometry().width() && desk.height() <= frameGeometry().height()) {
 394                 maximized = CompletelyMaximized;
 395                 // maximizing does not work when the window is allready hor. or vert. maximized
 396                 // Tested only on KDE
 397                 int dh = frameGeometry().height() - height();
 398                 if (desk.height() <= normal_geometry.height() + dh)
 399                         normal_geometry.setHeight(normal_geometry.height() - 1);
 400                 int dw = frameGeometry().width() - width();
 401                 if (desk.width() <= normal_geometry.width() + dw)
 402                         normal_geometry.setWidth(normal_geometry.width() - 1);
 403         } else if (desk.height() <= frameGeometry().height()) {
 404                 maximized = VerticallyMaximized;
 405         } else if (desk.width() <= frameGeometry().width()) {
 406                 maximized = HorizontallyMaximized;
 407         } else {
 408                 maximized = NotMaximized;
 409         }
 410
 411
 412 #endif
 413         // save windows size and position
 414         Session & session = LyX::ref().session();
 415         session.sessionInfo().save("WindowWidth", convert<string>(normal_geometry.width()));
 416         session.sessionInfo().save("WindowHeight", convert<string>(normal_geometry.height()));
 417         session.sessionInfo().save("WindowMaximized", convert<string>(maximized));
 418         session.sessionInfo().save("IconSizeXY", convert<string>(iconSize().width()));
 419         if (lyxrc.geometry_xysaved) {
 420                 session.sessionInfo().save("WindowPosX", convert<string>(normal_geometry.x() + d.posx_offset));
 421                 session.sessionInfo().save("WindowPosY", convert<string>(normal_geometry.y() + d.posy_offset));
 422         }
 423         d.toolbars_->saveToolbarInfo();
 424 }
 425
 426
 427 void GuiViewBase::setGeometry(unsigned int width,
 428                           unsigned int height,
 429                           int posx, int posy,
 430                           int maximized,
 431                           unsigned int iconSizeXY,
 432                           const string & geometryArg)
 433 {
 434         // use last value (not at startup)
 435         if (d.lastIconSize != 0)
 436                 setIconSize(d.lastIconSize);
 437         else if (iconSizeXY != 0)
 438                 setIconSize(iconSizeXY);
 439         else
 440                 setIconSize(d.normalIconSize);
 441
 442         // only true when the -geometry option was NOT used
 443         if (width != 0 && height != 0) {
 444                 if (posx != -1 && posy != -1) {
 445                         // if there are startup positioning problems:
 446                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 447                         QDesktopWidget& dw = *qApp->desktop();
 448                         if (dw.isVirtualDesktop()) {
 449                                 if(!dw.geometry().contains(posx, posy)) {
 450                                         posx = 50;
 451                                         posy = 50;
 452                                 }
 453                         } else {
 454                                 // Which system doesn't use a virtual desktop?
 455                                 // TODO save also last screen number and check if it is still availabe.
 456                         }
 457 #ifdef Q_WS_WIN
 458                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 459                         QWidget::setGeometry(posx, posy, width, height);
 460 #else
 461                         resize(width, height);
 462                         move(posx, posy);
 463 #endif
 464                 } else {
 465                         resize(width, height);
 466                 }
 467
 468                 // remember original size
 469                 floatingGeometry_ = QRect(posx, posy, width, height);
 470
 471                 if (maximized != NotMaximized) {
 472                         if (maximized == CompletelyMaximized) {
 473                                 setWindowState(Qt::WindowMaximized);
 474                         } else {
 475 #ifndef Q_WS_WIN
 476                                 // TODO How to set by the window manager?
 477                                 //      setWindowState(Qt::WindowVerticallyMaximized);
 478                                 //      is not possible
 479                                 QDesktopWidget& dw = *qApp->desktop();
 480                                 QRect desk = dw.availableGeometry(dw.primaryScreen());
 481                                 if (maximized == VerticallyMaximized)
 482                                         resize(width, desk.height());
 483                                 if (maximized == HorizontallyMaximized)
 484                                         resize(desk.width(), height);
 485 #endif
 486                         }
 487                 }
 488         }
 489         else
 490         {
 491                 // FIXME: move this code into parse_geometry() (LyX.cpp)
 492 #ifdef Q_WS_WIN
 493                 int x, y;
 494                 int w, h;
 495                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 496                 re.indexIn(toqstr(geometryArg.c_str()));
 497                 w = re.cap(1).toInt();
 498                 h = re.cap(2).toInt();
 499                 x = re.cap(3).toInt();
 500                 y = re.cap(4).toInt();
 501                 QWidget::setGeometry( x, y, w, h );
 502 #else
 503                 // silence warning
 504                 (void)geometryArg;
 505 #endif
 506         }
 507
 508         d.setBackground();
 509
 510         show();
 511
 512         // For an unknown reason, the Window title update is not effective for
 513         // the second windows up until it is shown on screen (Qt bug?).
 514         updateWindowTitle();
 515
 516         // after show geometry() has changed (Qt bug?)
 517         // we compensate the drift when storing the position
 518         d.posx_offset = 0;
 519         d.posy_offset = 0;
 520         if (width != 0 && height != 0)
 521                 if (posx != -1 && posy != -1) {
 522 #ifdef Q_WS_WIN
 523                         d.posx_offset = posx - normalGeometry().x();
 524                         d.posy_offset = posy - normalGeometry().y();
 525 #else
 526 #ifndef Q_WS_MACX
 527                         if (maximized == NotMaximized) {
 528                                 d.posx_offset = posx - geometry().x();
 529                                 d.posy_offset = posy - geometry().y();
 530                         }
 531 #endif
 532 #endif
 533                 }
 534 }
 535
 536
 537 void GuiViewBase::setWindowTitle(docstring const & t, docstring const & it)
 538 {
 539         QString title = windowTitle();
 540         QString new_title = toqstr(t);
 541         if (title != new_title) {
 542                 QMainWindow::setWindowTitle(new_title);
 543                 QMainWindow::setWindowIconText(toqstr(it));
 544         }
 545         if (Buffer const * buf = buffer())
 546                 d.tab_widget_->setTabText(d.tab_widget_->currentIndex(),
 547                         toqstr(makeDisplayPath(buf->absFileName(), 30)));
 548 }
 549
 550
 551 void GuiViewBase::message(docstring const & str)
 552 {
 553         statusBar()->showMessage(toqstr(str));
 554         statusbar_timer_.stop();
 555         statusbar_timer_.start(statusbar_timer_value);
 556 }
 557
 558
 559 void GuiViewBase::clearMessage()
 560 {
 561         update_view_state_qt();
 562 }
 563
 564
 565 void GuiViewBase::setIconSize(unsigned int size)
 566 {
 567         d.lastIconSize = size;
 568         QMainWindow::setIconSize(QSize(size, size));
 569 }
 570
 571
 572 void GuiViewBase::smallSizedIcons()
 573 {
 574         setIconSize(d.smallIconSize);
 575 }
 576
 577
 578 void GuiViewBase::normalSizedIcons()
 579 {
 580         setIconSize(d.normalIconSize);
 581 }
 582
 583
 584 void GuiViewBase::bigSizedIcons()
 585 {
 586         setIconSize(d.bigIconSize);
 587 }
 588
 589
 590 void GuiViewBase::update_view_state_qt()
 591 {
 592         if (!hasFocus())
 593                 return;
 594         theLyXFunc().setLyXView(this);
 595         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 596         statusbar_timer_.stop();
 597 }
 598
 599
 600 void GuiViewBase::on_currentWorkAreaChanged(GuiWorkArea * wa)
 601 {
 602         disconnectBuffer();
 603         disconnectBufferView();
 604         connectBufferView(wa->bufferView());
 605         connectBuffer(wa->bufferView().buffer());
 606
 607         updateToc();
 608         // Buffer-dependent dialogs should be updated or
 609         // hidden. This should go here because some dialogs (eg ToC)
 610         // require bv_->text.
 611         getDialogs().updateBufferDependent(true);
 612         updateToolbars();
 613         updateLayoutChoice();
 614         updateWindowTitle();
 615         updateStatusBar();
 616 }
 617
 618
 619 void GuiViewBase::updateStatusBar()
 620 {
 621         // let the user see the explicit message
 622         if (statusbar_timer_.isActive())
 623                 return;
 624
 625         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 626 }
 627
 628
 629 void GuiViewBase::activated(FuncRequest const & func)
 630 {
 631         dispatch(func);
 632 }
 633
 634
 635 bool GuiViewBase::hasFocus() const
 636 {
 637         return qApp->activeWindow() == this;
 638 }
 639
 640
 641 QRect  GuiViewBase::updateFloatingGeometry()
 642 {
 643         QDesktopWidget& dw = *qApp->desktop();
 644         QRect desk = dw.availableGeometry(dw.primaryScreen());
 645         // remember only non-maximized sizes
 646         if (!isMaximized() && desk.width() > frameGeometry().width() && desk.height() > frameGeometry().height()) {
 647                 floatingGeometry_ = QRect(x(), y(), width(), height());
 648         }
 649         return floatingGeometry_;
 650 }
 651
 652
 653 void GuiViewBase::resizeEvent(QResizeEvent *)
 654 {
 655         updateFloatingGeometry();
 656 }
 657
 658
 659 void GuiViewBase::moveEvent(QMoveEvent *)
 660 {
 661         updateFloatingGeometry();
 662 }
 663
 664
 665 bool GuiViewBase::event(QEvent * e)
 666 {
 667         switch (e->type())
 668         {
 669         // Useful debug code:
 670         //case QEvent::ActivationChange:
 671         //case QEvent::WindowDeactivate:
 672         //case QEvent::Paint:
 673         //case QEvent::Enter:
 674         //case QEvent::Leave:
 675         //case QEvent::HoverEnter:
 676         //case QEvent::HoverLeave:
 677         //case QEvent::HoverMove:
 678         //case QEvent::StatusTip:
 679         //case QEvent::DragEnter:
 680         //case QEvent::DragLeave:
 681         //case QEvent::Drop:
 682         //      break;
 683
 684         case QEvent::WindowActivate: {
 685                 theApp()->setCurrentView(*this);
 686                 GuiWorkArea * wa = d.tab_widget_->currentWorkArea();
 687                 if (wa) {
 688                         BufferView & bv = wa->bufferView();
 689                         connectBufferView(bv);
 690                         connectBuffer(bv.buffer());
 691                         // The document structure, name and dialogs might have
 692                         // changed in another view.
 693                         updateWindowTitle();
 694                         getDialogs().updateBufferDependent(true);
 695                 }
 696                 return QMainWindow::event(e);
 697         }
 698         case QEvent::ShortcutOverride: {
 699                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 700                 if (d.tab_widget_->count() == 0) {
 701                         theLyXFunc().setLyXView(this);
 702                         KeySymbol sym;
 703                         setKeySymbol(&sym, ke);
 704                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 705                         e->accept();
 706                         return true;
 707                 }
 708                 if (ke->key() == Qt::Key_Tab || ke->key() == Qt::Key_Backtab) {
 709                         KeySymbol sym;
 710                         setKeySymbol(&sym, ke);
 711                         currentWorkArea()->processKeySym(sym, NoModifier);
 712                         e->accept();
 713                         return true;
 714                 }
 715         }
 716         default:
 717                 return QMainWindow::event(e);
 718         }
 719 }
 720
 721
 722 bool GuiViewBase::focusNextPrevChild(bool /*next*/)
 723 {
 724         setFocus();
 725         return true;
 726 }
 727
 728
 729 void GuiViewBase::showView()
 730 {
 731         QMainWindow::setWindowTitle(qt_("LyX"));
 732         QMainWindow::show();
 733         updateFloatingGeometry();
 734 }
 735
 736
 737 void GuiViewBase::setBusy(bool yes)
 738 {
 739         GuiWorkArea * wa = d.tab_widget_->currentWorkArea();
 740         if (wa) {
 741                 wa->setUpdatesEnabled(!yes);
 742                 if (yes)
 743                         wa->stopBlinkingCursor();
 744                 else
 745                         wa->startBlinkingCursor();
 746         }
 747
 748         if (yes)
 749                 QApplication::setOverrideCursor(Qt::WaitCursor);
 750         else
 751                 QApplication::restoreOverrideCursor();
 752 }
 753
 754
 755 GuiToolbar * GuiViewBase::makeToolbar(ToolbarInfo const & tbinfo, bool newline)
 756 {
 757         GuiToolbar * toolBar = new GuiToolbar(tbinfo, *this);
 758
 759         if (tbinfo.flags & ToolbarInfo::TOP) {
 760                 if (newline)
 761                         addToolBarBreak(Qt::TopToolBarArea);
 762                 addToolBar(Qt::TopToolBarArea, toolBar);
 763         }
 764
 765         if (tbinfo.flags & ToolbarInfo::BOTTOM) {
 766 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 767 #if (QT_VERSION >= 0x040202)
 768                 if (newline)
 769                         addToolBarBreak(Qt::BottomToolBarArea);
 770 #endif
 771                 addToolBar(Qt::BottomToolBarArea, toolBar);
 772         }
 773
 774         if (tbinfo.flags & ToolbarInfo::LEFT) {
 775 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 776 #if (QT_VERSION >= 0x040202)
 777                 if (newline)
 778                         addToolBarBreak(Qt::LeftToolBarArea);
 779 #endif
 780                 addToolBar(Qt::LeftToolBarArea, toolBar);
 781         }
 782
 783         if (tbinfo.flags & ToolbarInfo::RIGHT) {
 784 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 785 #if (QT_VERSION >= 0x040202)
 786                 if (newline)
 787                         addToolBarBreak(Qt::RightToolBarArea);
 788 #endif
 789                 addToolBar(Qt::RightToolBarArea, toolBar);
 790         }
 791
 792         // The following does not work so I cannot restore to exact toolbar location
 793         /*
 794         ToolbarSection::ToolbarInfo & tbinfo = LyX::ref().session().toolbars().load(tbinfo.name);
 795         toolBar->move(tbinfo.posx, tbinfo.posy);
 796         */
 797
 798         return toolBar;
 799 }
 800
 801
 802 WorkArea * GuiViewBase::workArea(Buffer & buffer)
 803 {
 804         return d.tab_widget_->workArea(buffer);
 805 }
 806
 807
 808 WorkArea * GuiViewBase::addWorkArea(Buffer & buffer)
 809 {
 810         GuiWorkArea * wa = new GuiWorkArea(buffer, *this);
 811         wa->setUpdatesEnabled(false);
 812         d.tab_widget_->addTab(wa, toqstr(makeDisplayPath(buffer.absFileName(), 30)));
 813         wa->bufferView().updateMetrics(false);
 814         if (d.stack_widget_)
 815                 d.stack_widget_->setCurrentWidget(d.tab_widget_);
 816         // Hide tabbar if there's only one tab.
 817         d.tab_widget_->showBar(d.tab_widget_->count() > 1);
 818         return wa;
 819 }
 820
 821
 822 WorkArea * GuiViewBase::currentWorkArea()
 823 {
 824         return d.tab_widget_->currentWorkArea();
 825 }
 826
 827
 828 WorkArea const * GuiViewBase::currentWorkArea() const
 829 {
 830         return d.tab_widget_->currentWorkArea();
 831 }
 832
 833
 834 void GuiViewBase::setCurrentWorkArea(WorkArea * work_area)
 835 {
 836         BOOST_ASSERT(work_area);
 837
 838         // Changing work area can result from opening a file so
 839         // update the toc in any case.
 840         updateToc();
 841
 842         GuiWorkArea * wa = static_cast<GuiWorkArea *>(work_area);
 843         BOOST_ASSERT(wa);
 844         d.tab_widget_->setCurrentWorkArea(wa);
 845 }
 846
 847
 848 void GuiViewBase::removeWorkArea(WorkArea * work_area)
 849 {
 850         BOOST_ASSERT(work_area);
 851         if (work_area == currentWorkArea()) {
 852                 disconnectBuffer();
 853                 disconnectBufferView();
 854         }
 855
 856         // removing a work area often results from closing a file so
 857         // update the toc in any case.
 858         updateToc();
 859
 860         GuiWorkArea * gwa = static_cast<GuiWorkArea *>(work_area);
 861         BOOST_ASSERT(gwa);
 862         d.tab_widget_->removeWorkArea(gwa);
 863
 864         getDialogs().hideBufferDependent();
 865
 866         if (d.tab_widget_->count() == 0 && d.stack_widget_)
 867                 // No more work area, switch to the background widget.
 868                 d.setBackground();
 869 }
 870
 871
 872 void GuiViewBase::showMiniBuffer(bool visible)
 873 {
 874         d.toolbars_->showCommandBuffer(visible);
 875 }
 876
 877
 878 void GuiViewBase::openMenu(docstring const & name)
 879 {
 880         d.menubar_->openByName(toqstr(name));
 881 }
 882
 883
 884 void GuiViewBase::openLayoutList()
 885 {
 886         d.toolbars_->openLayoutList();
 887 }
 888
 889
 890 void GuiViewBase::updateLayoutChoice()
 891 {
 892         // Don't show any layouts without a buffer
 893         if (!buffer()) {
 894                 d.toolbars_->clearLayoutList();
 895                 return;
 896         }
 897
 898         // Update the layout display
 899         if (d.toolbars_->updateLayoutList(buffer()->params().getTextClassPtr())) {
 900                 d.current_layout = buffer()->params().getTextClass().defaultLayoutName();
 901         }
 902
 903         docstring const & layout = currentWorkArea()->bufferView().cursor().
 904                 innerParagraph().layout()->name();
 905
 906         if (layout != d.current_layout) {
 907                 d.toolbars_->setLayout(layout);
 908                 d.current_layout = layout;
 909         }
 910 }
 911
 912
 913 bool GuiViewBase::isToolbarVisible(std::string const & id)
 914 {
 915         return d.toolbars_->visible(id);
 916 }
 917
 918 void GuiViewBase::updateToolbars()
 919 {
 920         WorkArea * wa = currentWorkArea();
 921         if (wa) {
 922                 bool const math =
 923                         wa->bufferView().cursor().inMathed();
 924                 bool const table =
 925                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 926                 bool const review =
 927                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
 928                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
 929
 930                 d.toolbars_->update(math, table, review);
 931         } else
 932                 d.toolbars_->update(false, false, false);
 933
 934         // update read-only status of open dialogs.
 935         getDialogs().checkStatus();
 936 }
 937
 938
 939 ToolbarInfo * GuiViewBase::getToolbarInfo(string const & name)
 940 {
 941         return d.toolbars_->getToolbarInfo(name);
 942 }
 943
 944
 945 void GuiViewBase::toggleToolbarState(string const & name, bool allowauto)
 946 {
 947         // it is possible to get current toolbar status like this,...
 948         // but I decide to obey the order of ToolbarBackend::flags
 949         // and disregard real toolbar status.
 950         // toolbars_->saveToolbarInfo();
 951         //
 952         // toggle state on/off/auto
 953         d.toolbars_->toggleToolbarState(name, allowauto);
 954         // update toolbar
 955         updateToolbars();
 956 }
 957
 958
 959 } // namespace frontend
 960 } // namespace lyx
 961
 962 #include "GuiView_moc.cpp"