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 "debug.h"
  41 #include "FuncRequest.h"
  42 #include "Layout.h"
  43 #include "LyX.h"
  44 #include "LyXFunc.h"
  45 #include "LyXRC.h"
  46 #include "MenuBackend.h"
  47 #include "Paragraph.h"
  48 #include "Session.h"
  49 #include "version.h"
  50
  51 #include <boost/current_function.hpp>
  52
  53 #include <QAction>
  54 #include <QApplication>
  55 #include <QCloseEvent>
  56 #include <QDesktopWidget>
  57 #include <QDragEnterEvent>
  58 #include <QDropEvent>
  59 #include <QList>
  60 #include <QMenu>
  61 #include <QPainter>
  62 #include <QPixmap>
  63 #include <QPushButton>
  64 #include <QStackedWidget>
  65 #include <QStatusBar>
  66 #include <QToolBar>
  67 #include <QUrl>
  68
  69 using std::endl;
  70 using std::string;
  71 using std::vector;
  72
  73 namespace lyx {
  74
  75 using support::FileName;
  76 using support::libFileSearch;
  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                 FileName const file = support::libFileSearch("images", "banner", "png");
 194                 if (file.empty())
 195                         return;
 196
 197                 bg_widget_ = new BackgroundWidget(toqstr(file.absFilename()), text);
 198         }
 199
 200         void setBackground()
 201         {
 202                 if (!bg_widget_)
 203                         return;
 204
 205                 stack_widget_->setCurrentWidget(bg_widget_);
 206                 bg_widget_->setUpdatesEnabled(true);
 207         }
 208 };
 209
 210
 211 unsigned int GuiViewBase::GuiViewPrivate::lastIconSize = 0;
 212
 213
 214 GuiViewBase::GuiViewBase(int id)
 215         : QMainWindow(), LyXView(id), quitting_by_menu_(false),
 216           d(*new GuiViewPrivate)
 217 {
 218         // Qt bug? signal lastWindowClosed does not work
 219         setAttribute(Qt::WA_QuitOnClose, false);
 220         setAttribute(Qt::WA_DeleteOnClose, true);
 221
 222         // hardcode here the platform specific icon size
 223         d.smallIconSize = 14;   // scaling problems
 224         d.normalIconSize = 20;  // ok, default
 225         d.bigIconSize = 26;             // better for some math icons
 226
 227 #ifndef Q_WS_MACX
 228         // assign an icon to main form. We do not do it under Qt/Mac,
 229         // since the icon is provided in the application bundle.
 230         FileName const iconname = libFileSearch("images", "lyx", "png");
 231         if (!iconname.empty())
 232                 setWindowIcon(QPixmap(toqstr(iconname.absFilename())));
 233 #endif
 234
 235         d.tab_widget_ = new TabWorkArea;
 236         QObject::connect(d.tab_widget_, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
 237                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
 238
 239         d.initBackground();
 240         if (d.bg_widget_) {
 241                 LYXERR(Debug::GUI) << "stack widget!" << endl;
 242                 d.stack_widget_ = new QStackedWidget;
 243                 d.stack_widget_->addWidget(d.bg_widget_);
 244                 d.stack_widget_->addWidget(d.tab_widget_);
 245                 setCentralWidget(d.stack_widget_);
 246         } else {
 247                 d.stack_widget_ = 0;
 248                 setCentralWidget(d.tab_widget_);
 249         }
 250
 251         // For Drag&Drop.
 252         setAcceptDrops(true);
 253 }
 254
 255
 256 GuiViewBase::~GuiViewBase()
 257 {
 258         delete d.menubar_;
 259         delete d.toolbars_;
 260         delete &d;
 261 }
 262
 263
 264 void GuiViewBase::close()
 265 {
 266         quitting_by_menu_ = true;
 267         d.tab_widget_->closeAll();
 268         QMainWindow::close();
 269         quitting_by_menu_ = false;
 270 }
 271
 272
 273 void GuiViewBase::setFocus()
 274 {
 275         if (d.tab_widget_->count())
 276                 d.tab_widget_->currentWidget()->setFocus();
 277 }
 278
 279
 280 QMenu* GuiViewBase::createPopupMenu()
 281 {
 282         return d.toolBarPopup(this);
 283 }
 284
 285
 286 void GuiViewBase::init()
 287 {
 288         // GuiToolbars *must* be initialised before GuiMenubar.
 289         d.toolbars_ = new GuiToolbars(*this);
 290         // FIXME: GuiToolbars::init() cannot be integrated in the ctor
 291         // because LyXFunc::getStatus() needs a properly initialized
 292         // GuiToolbars object (for LFUN_TOOLBAR_TOGGLE).
 293         d.toolbars_->init();
 294         d.menubar_ = new GuiMenubar(this, menubackend);
 295
 296         statusBar()->setSizeGripEnabled(true);
 297
 298         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 299                 this, SLOT(update_view_state_qt()));
 300
 301         if (d.stack_widget_)
 302                 d.stack_widget_->setCurrentWidget(d.bg_widget_);
 303 }
 304
 305
 306 void GuiViewBase::closeEvent(QCloseEvent * close_event)
 307 {
 308         // we may have been called through the close window button
 309         // which bypasses the LFUN machinery.
 310         if (!quitting_by_menu_ && theApp()->gui().viewIds().size() == 1) {
 311                 if (!theBufferList().quitWriteAll()) {
 312                         close_event->ignore();
 313                         return;
 314                 }
 315         }
 316
 317         // Make sure that no LFUN use this close to be closed View.
 318         theLyXFunc().setLyXView(0);
 319         // Make sure the timer time out will not trigger a statusbar update.
 320         statusbar_timer_.stop();
 321
 322         theApp()->gui().unregisterView(id());
 323         if (!theApp()->gui().viewIds().empty()) {
 324                 // Just close the window and do nothing else if this is not the
 325                 // last window.
 326                 close_event->accept();
 327                 return;
 328         }
 329
 330         quitting = true;
 331
 332         // this is the place where we leave the frontend.
 333         // it is the only point at which we start quitting.
 334         saveGeometry();
 335         close_event->accept();
 336         // quit the event loop
 337         qApp->quit();
 338 }
 339
 340
 341 void GuiViewBase::dragEnterEvent(QDragEnterEvent * event)
 342 {
 343         if (event->mimeData()->hasUrls())
 344                 event->accept();
 345         /// \todo Ask lyx-devel is this is enough:
 346         /// if (event->mimeData()->hasFormat("text/plain"))
 347         ///     event->acceptProposedAction();
 348 }
 349
 350
 351 void GuiViewBase::dropEvent(QDropEvent* event)
 352 {
 353         QList<QUrl> files = event->mimeData()->urls();
 354         if (files.isEmpty())
 355                 return;
 356
 357         LYXERR(Debug::GUI) << BOOST_CURRENT_FUNCTION
 358                 << " got URLs!" << endl;
 359         for (int i = 0; i != files.size(); ++i) {
 360                 string const file = support::os::internal_path(fromqstr(
 361                         files.at(i).toLocalFile()));
 362                 if (!file.empty())
 363                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 364         }
 365 }
 366
 367
 368 void GuiViewBase::saveGeometry()
 369 {
 370         static bool done = false;
 371         if (done)
 372                 return;
 373         else
 374                 done = true;
 375
 376         // FIXME:
 377         // change the ifdef to 'geometry = normalGeometry();' only
 378         // when Trolltech has fixed the broken normalGeometry on X11:
 379         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 380         // Then also the moveEvent, resizeEvent, and the
 381         // code for floatingGeometry_ can be removed;
 382         // adjust GuiViewBase::setGeometry()
 383
 384         QRect normal_geometry;
 385         int maximized;
 386 #ifdef Q_WS_WIN
 387         normal_geometry = normalGeometry();
 388         if (isMaximized()) {
 389                 maximized = CompletelyMaximized;
 390         } else {
 391                 maximized = NotMaximized;
 392         }
 393 #else
 394         normal_geometry = updateFloatingGeometry();
 395
 396         QDesktopWidget& dw = *qApp->desktop();
 397         QRect desk = dw.availableGeometry(dw.primaryScreen());
 398         // Qt bug on Linux: load completely maximized, vert max. save-> frameGeometry().height() is wrong
 399         if (isMaximized() && desk.width() <= frameGeometry().width() && desk.height() <= frameGeometry().height()) {
 400                 maximized = CompletelyMaximized;
 401                 // maximizing does not work when the window is allready hor. or vert. maximized
 402                 // Tested only on KDE
 403                 int dh = frameGeometry().height() - height();
 404                 if (desk.height() <= normal_geometry.height() + dh)
 405                         normal_geometry.setHeight(normal_geometry.height() - 1);
 406                 int dw = frameGeometry().width() - width();
 407                 if (desk.width() <= normal_geometry.width() + dw)
 408                         normal_geometry.setWidth(normal_geometry.width() - 1);
 409         } else if (desk.height() <= frameGeometry().height()) {
 410                 maximized = VerticallyMaximized;
 411         } else if (desk.width() <= frameGeometry().width()) {
 412                 maximized = HorizontallyMaximized;
 413         } else {
 414                 maximized = NotMaximized;
 415         }
 416
 417
 418 #endif
 419         // save windows size and position
 420         Session & session = LyX::ref().session();
 421         session.sessionInfo().save("WindowWidth", convert<string>(normal_geometry.width()));
 422         session.sessionInfo().save("WindowHeight", convert<string>(normal_geometry.height()));
 423         session.sessionInfo().save("WindowMaximized", convert<string>(maximized));
 424         session.sessionInfo().save("IconSizeXY", convert<string>(iconSize().width()));
 425         if (lyxrc.geometry_xysaved) {
 426                 session.sessionInfo().save("WindowPosX", convert<string>(normal_geometry.x() + d.posx_offset));
 427                 session.sessionInfo().save("WindowPosY", convert<string>(normal_geometry.y() + d.posy_offset));
 428         }
 429         d.toolbars_->saveToolbarInfo();
 430 }
 431
 432
 433 void GuiViewBase::setGeometry(unsigned int width,
 434                           unsigned int height,
 435                           int posx, int posy,
 436                           int maximized,
 437                           unsigned int iconSizeXY,
 438                           const string & geometryArg)
 439 {
 440         // use last value (not at startup)
 441         if (d.lastIconSize != 0)
 442                 setIconSize(d.lastIconSize);
 443         else if (iconSizeXY != 0)
 444                 setIconSize(iconSizeXY);
 445         else
 446                 setIconSize(d.normalIconSize);
 447
 448         // only true when the -geometry option was NOT used
 449         if (width != 0 && height != 0) {
 450                 if (posx != -1 && posy != -1) {
 451                         // if there are startup positioning problems:
 452                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 453                         QDesktopWidget& dw = *qApp->desktop();
 454                         if (dw.isVirtualDesktop()) {
 455                                 if(!dw.geometry().contains(posx, posy)) {
 456                                         posx = 50;
 457                                         posy = 50;
 458                                 }
 459                         } else {
 460                                 // Which system doesn't use a virtual desktop?
 461                                 // TODO save also last screen number and check if it is still availabe.
 462                         }
 463 #ifdef Q_WS_WIN
 464                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 465                         QWidget::setGeometry(posx, posy, width, height);
 466 #else
 467                         resize(width, height);
 468                         move(posx, posy);
 469 #endif
 470                 } else {
 471                         resize(width, height);
 472                 }
 473
 474                 // remember original size
 475                 floatingGeometry_ = QRect(posx, posy, width, height);
 476
 477                 if (maximized != NotMaximized) {
 478                         if (maximized == CompletelyMaximized) {
 479                                 setWindowState(Qt::WindowMaximized);
 480                         } else {
 481 #ifndef Q_WS_WIN
 482                                 // TODO How to set by the window manager?
 483                                 //      setWindowState(Qt::WindowVerticallyMaximized);
 484                                 //      is not possible
 485                                 QDesktopWidget& dw = *qApp->desktop();
 486                                 QRect desk = dw.availableGeometry(dw.primaryScreen());
 487                                 if (maximized == VerticallyMaximized)
 488                                         resize(width, desk.height());
 489                                 if (maximized == HorizontallyMaximized)
 490                                         resize(desk.width(), height);
 491 #endif
 492                         }
 493                 }
 494         }
 495         else
 496         {
 497                 // FIXME: move this code into parse_geometry() (LyX.cpp)
 498 #ifdef Q_WS_WIN
 499                 int x, y;
 500                 int w, h;
 501                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 502                 re.indexIn(toqstr(geometryArg.c_str()));
 503                 w = re.cap(1).toInt();
 504                 h = re.cap(2).toInt();
 505                 x = re.cap(3).toInt();
 506                 y = re.cap(4).toInt();
 507                 QWidget::setGeometry( x, y, w, h );
 508 #else
 509                 // silence warning
 510                 (void)geometryArg;
 511 #endif
 512         }
 513
 514         d.setBackground();
 515
 516         show();
 517
 518         // For an unknown reason, the Window title update is not effective for
 519         // the second windows up until it is shown on screen (Qt bug?).
 520         updateWindowTitle();
 521
 522         // after show geometry() has changed (Qt bug?)
 523         // we compensate the drift when storing the position
 524         d.posx_offset = 0;
 525         d.posy_offset = 0;
 526         if (width != 0 && height != 0)
 527                 if (posx != -1 && posy != -1) {
 528 #ifdef Q_WS_WIN
 529                         d.posx_offset = posx - normalGeometry().x();
 530                         d.posy_offset = posy - normalGeometry().y();
 531 #else
 532 #ifndef Q_WS_MACX
 533                         if (maximized == NotMaximized) {
 534                                 d.posx_offset = posx - geometry().x();
 535                                 d.posy_offset = posy - geometry().y();
 536                         }
 537 #endif
 538 #endif
 539                 }
 540 }
 541
 542
 543 void GuiViewBase::setWindowTitle(docstring const & t, docstring const & it)
 544 {
 545         QString title = windowTitle();
 546         QString new_title = toqstr(t);
 547         if (title != new_title) {
 548                 QMainWindow::setWindowTitle(new_title);
 549                 QMainWindow::setWindowIconText(toqstr(it));
 550         }
 551         if (Buffer const * buf = buffer())
 552                 d.tab_widget_->setTabText(d.tab_widget_->currentIndex(),
 553                         toqstr(makeDisplayPath(buf->fileName(), 30)));
 554 }
 555
 556
 557 void GuiViewBase::message(docstring const & str)
 558 {
 559         statusBar()->showMessage(toqstr(str));
 560         statusbar_timer_.stop();
 561         statusbar_timer_.start(statusbar_timer_value);
 562 }
 563
 564
 565 void GuiViewBase::clearMessage()
 566 {
 567         update_view_state_qt();
 568 }
 569
 570
 571 void GuiViewBase::setIconSize(unsigned int size)
 572 {
 573         d.lastIconSize = size;
 574         QMainWindow::setIconSize(QSize(size, size));
 575 }
 576
 577
 578 void GuiViewBase::smallSizedIcons()
 579 {
 580         setIconSize(d.smallIconSize);
 581 }
 582
 583
 584 void GuiViewBase::normalSizedIcons()
 585 {
 586         setIconSize(d.normalIconSize);
 587 }
 588
 589
 590 void GuiViewBase::bigSizedIcons()
 591 {
 592         setIconSize(d.bigIconSize);
 593 }
 594
 595
 596 void GuiViewBase::update_view_state_qt()
 597 {
 598         if (!hasFocus())
 599                 return;
 600         theLyXFunc().setLyXView(this);
 601         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 602         statusbar_timer_.stop();
 603 }
 604
 605
 606 void GuiViewBase::on_currentWorkAreaChanged(GuiWorkArea * wa)
 607 {
 608         disconnectBuffer();
 609         disconnectBufferView();
 610         connectBufferView(wa->bufferView());
 611         connectBuffer(wa->bufferView().buffer());
 612
 613         updateToc();
 614         // Buffer-dependent dialogs should be updated or
 615         // hidden. This should go here because some dialogs (eg ToC)
 616         // require bv_->text.
 617         getDialogs().updateBufferDependent(true);
 618         updateToolbars();
 619         updateLayoutChoice();
 620         updateWindowTitle();
 621         updateStatusBar();
 622 }
 623
 624
 625 void GuiViewBase::updateStatusBar()
 626 {
 627         // let the user see the explicit message
 628         if (statusbar_timer_.isActive())
 629                 return;
 630
 631         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 632 }
 633
 634
 635 void GuiViewBase::activated(FuncRequest const & func)
 636 {
 637         dispatch(func);
 638 }
 639
 640
 641 bool GuiViewBase::hasFocus() const
 642 {
 643         return qApp->activeWindow() == this;
 644 }
 645
 646
 647 QRect  GuiViewBase::updateFloatingGeometry()
 648 {
 649         QDesktopWidget& dw = *qApp->desktop();
 650         QRect desk = dw.availableGeometry(dw.primaryScreen());
 651         // remember only non-maximized sizes
 652         if (!isMaximized() && desk.width() > frameGeometry().width() && desk.height() > frameGeometry().height()) {
 653                 floatingGeometry_ = QRect(x(), y(), width(), height());
 654         }
 655         return floatingGeometry_;
 656 }
 657
 658
 659 void GuiViewBase::resizeEvent(QResizeEvent *)
 660 {
 661         updateFloatingGeometry();
 662 }
 663
 664
 665 void GuiViewBase::moveEvent(QMoveEvent *)
 666 {
 667         updateFloatingGeometry();
 668 }
 669
 670
 671 bool GuiViewBase::event(QEvent * e)
 672 {
 673         switch (e->type())
 674         {
 675         // Useful debug code:
 676         //case QEvent::ActivationChange:
 677         //case QEvent::WindowDeactivate:
 678         //case QEvent::Paint:
 679         //case QEvent::Enter:
 680         //case QEvent::Leave:
 681         //case QEvent::HoverEnter:
 682         //case QEvent::HoverLeave:
 683         //case QEvent::HoverMove:
 684         //case QEvent::StatusTip:
 685         //case QEvent::DragEnter:
 686         //case QEvent::DragLeave:
 687         //case QEvent::Drop:
 688         //      break;
 689
 690         case QEvent::WindowActivate:
 691                 theApp()->setCurrentView(*this);
 692                 if (d.tab_widget_->count()) {
 693                         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(
 694                                 d.tab_widget_->currentWidget());
 695                         BOOST_ASSERT(wa);
 696                         BufferView & bv = wa->bufferView();
 697                         connectBufferView(bv);
 698                         connectBuffer(bv.buffer());
 699                         // The document structure, name and dialogs might have
 700                         // changed in another view.
 701                         updateToc();
 702                         updateWindowTitle();
 703                         getDialogs().updateBufferDependent(true);
 704                 }
 705                 return QMainWindow::event(e);
 706
 707         case QEvent::ShortcutOverride: {
 708                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 709                 if (d.tab_widget_->count() == 0) {
 710                         theLyXFunc().setLyXView(this);
 711                         KeySymbol sym;
 712                         setKeySymbol(&sym, ke);
 713                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 714                         e->accept();
 715                         return true;
 716                 }
 717                 if (ke->key() == Qt::Key_Tab || ke->key() == Qt::Key_Backtab) {
 718                         KeySymbol sym;
 719                         setKeySymbol(&sym, ke);
 720                         currentWorkArea()->processKeySym(sym, NoModifier);
 721                         e->accept();
 722                         return true;
 723                 }
 724         }
 725         default:
 726                 return QMainWindow::event(e);
 727         }
 728 }
 729
 730
 731 bool GuiViewBase::focusNextPrevChild(bool /*next*/)
 732 {
 733         setFocus();
 734         return true;
 735 }
 736
 737
 738 void GuiViewBase::showView()
 739 {
 740         QMainWindow::setWindowTitle(qt_("LyX"));
 741         QMainWindow::show();
 742         updateFloatingGeometry();
 743 }
 744
 745
 746 void GuiViewBase::busy(bool yes)
 747 {
 748         if (d.tab_widget_->count()) {
 749                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 750                 BOOST_ASSERT(wa);
 751                 wa->setUpdatesEnabled(!yes);
 752                 if (yes)
 753                         wa->stopBlinkingCursor();
 754                 else
 755                         wa->startBlinkingCursor();
 756         }
 757
 758         if (yes)
 759                 QApplication::setOverrideCursor(Qt::WaitCursor);
 760         else
 761                 QApplication::restoreOverrideCursor();
 762 }
 763
 764
 765 GuiToolbar * GuiViewBase::makeToolbar(ToolbarInfo const & tbinfo, bool newline)
 766 {
 767         GuiToolbar * toolBar = new GuiToolbar(tbinfo, *this);
 768
 769         if (tbinfo.flags & ToolbarInfo::TOP) {
 770                 if (newline)
 771                         addToolBarBreak(Qt::TopToolBarArea);
 772                 addToolBar(Qt::TopToolBarArea, toolBar);
 773         }
 774
 775         if (tbinfo.flags & ToolbarInfo::BOTTOM) {
 776 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 777 #if (QT_VERSION >= 0x040202)
 778                 if (newline)
 779                         addToolBarBreak(Qt::BottomToolBarArea);
 780 #endif
 781                 addToolBar(Qt::BottomToolBarArea, toolBar);
 782         }
 783
 784         if (tbinfo.flags & ToolbarInfo::LEFT) {
 785 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 786 #if (QT_VERSION >= 0x040202)
 787                 if (newline)
 788                         addToolBarBreak(Qt::LeftToolBarArea);
 789 #endif
 790                 addToolBar(Qt::LeftToolBarArea, toolBar);
 791         }
 792
 793         if (tbinfo.flags & ToolbarInfo::RIGHT) {
 794 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 795 #if (QT_VERSION >= 0x040202)
 796                 if (newline)
 797                         addToolBarBreak(Qt::RightToolBarArea);
 798 #endif
 799                 addToolBar(Qt::RightToolBarArea, toolBar);
 800         }
 801
 802         // The following does not work so I cannot restore to exact toolbar location
 803         /*
 804         ToolbarSection::ToolbarInfo & tbinfo = LyX::ref().session().toolbars().load(tbinfo.name);
 805         toolBar->move(tbinfo.posx, tbinfo.posy);
 806         */
 807
 808         return toolBar;
 809 }
 810
 811
 812 WorkArea * GuiViewBase::workArea(Buffer & buffer)
 813 {
 814         for (int i = 0; i != d.tab_widget_->count(); ++i) {
 815                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 816                 BOOST_ASSERT(wa);
 817                 if (&wa->bufferView().buffer() == &buffer)
 818                         return wa;
 819         }
 820         return 0;
 821 }
 822
 823
 824 WorkArea * GuiViewBase::addWorkArea(Buffer & buffer)
 825 {
 826         GuiWorkArea * wa = new GuiWorkArea(buffer, *this);
 827         wa->setUpdatesEnabled(false);
 828         d.tab_widget_->addTab(wa, toqstr(makeDisplayPath(buffer.fileName(), 30)));
 829         wa->bufferView().updateMetrics(false);
 830         if (d.stack_widget_)
 831                 d.stack_widget_->setCurrentWidget(d.tab_widget_);
 832         // Hide tabbar if there's only one tab.
 833         d.tab_widget_->showBar(d.tab_widget_->count() > 1);
 834         return wa;
 835 }
 836
 837
 838 WorkArea * GuiViewBase::currentWorkArea()
 839 {
 840         if (d.tab_widget_->count() == 0)
 841                 return 0;
 842         BOOST_ASSERT(dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget()));
 843         return dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 844 }
 845
 846
 847 WorkArea const * GuiViewBase::currentWorkArea() const
 848 {
 849         if (d.tab_widget_->count() == 0)
 850                 return 0;
 851         BOOST_ASSERT(dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget()));
 852         return dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget());
 853 }
 854
 855
 856 void GuiViewBase::setCurrentWorkArea(WorkArea * work_area)
 857 {
 858         BOOST_ASSERT(work_area);
 859
 860         // Changing work area can result from opening a file so
 861         // update the toc in any case.
 862         updateToc();
 863
 864         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(work_area);
 865         BOOST_ASSERT(wa);
 866         d.tab_widget_->setCurrentWorkArea(wa);
 867 }
 868
 869
 870 void GuiViewBase::removeWorkArea(WorkArea * work_area)
 871 {
 872         BOOST_ASSERT(work_area);
 873         if (work_area == currentWorkArea()) {
 874                 disconnectBuffer();
 875                 disconnectBufferView();
 876         }
 877
 878         // removing a work area often results from closing a file so
 879         // update the toc in any case.
 880         updateToc();
 881
 882         GuiWorkArea * gwa = dynamic_cast<GuiWorkArea *>(work_area);
 883         BOOST_ASSERT(gwa);
 884         d.tab_widget_->removeWorkArea(gwa);
 885
 886         getDialogs().hideBufferDependent();
 887
 888         if (d.tab_widget_->count() == 0 && d.stack_widget_)
 889                 // No more work area, switch to the background widget.
 890                 d.setBackground();
 891 }
 892
 893
 894 void GuiViewBase::showMiniBuffer(bool visible)
 895 {
 896         d.toolbars_->showCommandBuffer(visible);
 897 }
 898
 899
 900 void GuiViewBase::openMenu(docstring const & name)
 901 {
 902         d.menubar_->openByName(toqstr(name));
 903 }
 904
 905
 906 void GuiViewBase::openLayoutList()
 907 {
 908         d.toolbars_->openLayoutList();
 909 }
 910
 911
 912 void GuiViewBase::updateLayoutChoice()
 913 {
 914         // Don't show any layouts without a buffer
 915         if (!buffer()) {
 916                 d.toolbars_->clearLayoutList();
 917                 return;
 918         }
 919
 920         // Update the layout display
 921         if (d.toolbars_->updateLayoutList(buffer()->params().getTextClassPtr())) {
 922                 d.current_layout = buffer()->params().getTextClass().defaultLayoutName();
 923         }
 924
 925         docstring const & layout = currentWorkArea()->bufferView().cursor().
 926                 innerParagraph().layout()->name();
 927
 928         if (layout != d.current_layout) {
 929                 d.toolbars_->setLayout(layout);
 930                 d.current_layout = layout;
 931         }
 932 }
 933
 934
 935 bool GuiViewBase::isToolbarVisible(std::string const & id)
 936 {
 937         return d.toolbars_->visible(id);
 938 }
 939
 940 void GuiViewBase::updateToolbars()
 941 {
 942         WorkArea * wa = currentWorkArea();
 943         if (wa) {
 944                 bool const math =
 945                         wa->bufferView().cursor().inMathed();
 946                 bool const table =
 947                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 948                 bool const review =
 949                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
 950                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
 951
 952                 d.toolbars_->update(math, table, review);
 953         } else
 954                 d.toolbars_->update(false, false, false);
 955
 956         // update read-only status of open dialogs.
 957         getDialogs().checkStatus();
 958 }
 959
 960
 961 ToolbarInfo * GuiViewBase::getToolbarInfo(string const & name)
 962 {
 963         return d.toolbars_->getToolbarInfo(name);
 964 }
 965
 966
 967 void GuiViewBase::toggleToolbarState(string const & name, bool allowauto)
 968 {
 969         // it is possible to get current toolbar status like this,...
 970         // but I decide to obey the order of ToolbarBackend::flags
 971         // and disregard real toolbar status.
 972         // toolbars_->saveToolbarInfo();
 973         //
 974         // toggle state on/off/auto
 975         d.toolbars_->toggleToolbarState(name, allowauto);
 976         // update toolbar
 977         updateToolbars();
 978 }
 979
 980
 981 } // namespace frontend
 982 } // namespace lyx
 983
 984 #include "GuiView_moc.cpp"