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 "version.h"
  51
  52 #include <boost/current_function.hpp>
  53
  54 #include <QAction>
  55 #include <QApplication>
  56 #include <QCloseEvent>
  57 #include <QDesktopWidget>
  58 #include <QDragEnterEvent>
  59 #include <QDropEvent>
  60 #include <QList>
  61 #include <QMenu>
  62 #include <QPainter>
  63 #include <QPixmap>
  64 #include <QPushButton>
  65 #include <QStackedWidget>
  66 #include <QStatusBar>
  67 #include <QToolBar>
  68 #include <QUrl>
  69
  70 using std::endl;
  71 using std::string;
  72 using std::vector;
  73
  74 namespace lyx {
  75
  76 using support::FileName;
  77 using support::libFileSearch;
  78 using support::makeDisplayPath;
  79
  80 extern bool quitting;
  81
  82 namespace frontend {
  83
  84 namespace {
  85
  86 int const statusbar_timer_value = 3000;
  87
  88 class BackgroundWidget : public QWidget
  89 {
  90 public:
  91         BackgroundWidget(QString const & file, QString const & text)
  92         {
  93                 splash_ = new QPixmap(file);
  94                 if (!splash_) {
  95                         lyxerr << "could not load splash screen: '" << fromqstr(file) << "'" << endl;
  96                         return;
  97                 }
  98
  99                 QPainter pain(splash_);
 100                 pain.setPen(QColor(255, 255, 0));
 101                 QFont font;
 102                 // The font used to display the version info
 103                 font.setStyleHint(QFont::SansSerif);
 104                 font.setWeight(QFont::Bold);
 105                 font.setPointSize(convert<int>(lyxrc.font_sizes[Font::SIZE_LARGE]));
 106                 pain.setFont(font);
 107                 pain.drawText(260, 270, text);
 108         }
 109
 110         void paintEvent(QPaintEvent *)
 111         {
 112                 if (!splash_)
 113                         return;
 114
 115                 int x = (width() - splash_->width()) / 2;
 116                 int y = (height() - splash_->height()) / 2;
 117                 QPainter pain(this);
 118                 pain.drawPixmap(x, y, *splash_);
 119         }
 120
 121 private:
 122         QPixmap * splash_;
 123 };
 124
 125 };
 126
 127
 128 struct GuiViewBase::GuiViewPrivate
 129 {
 130         string cur_title;
 131
 132         int posx_offset;
 133         int posy_offset;
 134
 135         TabWorkArea * tab_widget_;
 136         QStackedWidget * stack_widget_;
 137         BackgroundWidget * bg_widget_;
 138         /// view's menubar
 139         GuiMenubar * menubar_;
 140         /// view's toolbars
 141         GuiToolbars * toolbars_;
 142         ///
 143         docstring current_layout;
 144
 145         GuiViewPrivate() : posx_offset(0), posy_offset(0) {}
 146
 147         unsigned int smallIconSize;
 148         unsigned int normalIconSize;
 149         unsigned int bigIconSize;
 150         // static needed by "New Window"
 151         static unsigned int lastIconSize;
 152
 153         QMenu * toolBarPopup(GuiViewBase * parent)
 154         {
 155                 // FIXME: translation
 156                 QMenu * menu = new QMenu(parent);
 157                 QActionGroup * iconSizeGroup = new QActionGroup(parent);
 158
 159                 QAction * smallIcons = new QAction(iconSizeGroup);
 160                 smallIcons->setText(qt_("Small-sized icons"));
 161                 smallIcons->setCheckable(true);
 162                 QObject::connect(smallIcons, SIGNAL(triggered()), parent, SLOT(smallSizedIcons()));
 163                 menu->addAction(smallIcons);
 164
 165                 QAction * normalIcons = new QAction(iconSizeGroup);
 166                 normalIcons->setText(qt_("Normal-sized icons"));
 167                 normalIcons->setCheckable(true);
 168                 QObject::connect(normalIcons, SIGNAL(triggered()), parent, SLOT(normalSizedIcons()));
 169                 menu->addAction(normalIcons);
 170
 171                 QAction * bigIcons = new QAction(iconSizeGroup);
 172                 bigIcons->setText(qt_("Big-sized icons"));
 173                 bigIcons->setCheckable(true);
 174                 QObject::connect(bigIcons, SIGNAL(triggered()), parent, SLOT(bigSizedIcons()));
 175                 menu->addAction(bigIcons);
 176
 177                 unsigned int cur = parent->iconSize().width();
 178                 if ( cur == parent->d.smallIconSize)
 179                         smallIcons->setChecked(true);
 180                 else if (cur == parent->d.normalIconSize)
 181                         normalIcons->setChecked(true);
 182                 else if (cur == parent->d.bigIconSize)
 183                         bigIcons->setChecked(true);
 184
 185                 return menu;
 186         }
 187
 188         void initBackground()
 189         {
 190                 bg_widget_ = 0;
 191                 LYXERR(Debug::GUI) << "show banner: " << lyxrc.show_banner << endl;
 192                 /// The text to be written on top of the pixmap
 193                 QString const text = lyx_version ? QString(lyx_version) : qt_("unknown version");
 194                 FileName const file = support::libFileSearch("images", "banner", "png");
 195                 if (file.empty())
 196                         return;
 197
 198                 bg_widget_ = new BackgroundWidget(toqstr(file.absFilename()), text);
 199         }
 200
 201         void setBackground()
 202         {
 203                 if (!bg_widget_)
 204                         return;
 205
 206                 stack_widget_->setCurrentWidget(bg_widget_);
 207                 bg_widget_->setUpdatesEnabled(true);
 208         }
 209 };
 210
 211
 212 unsigned int GuiViewBase::GuiViewPrivate::lastIconSize = 0;
 213
 214
 215 GuiViewBase::GuiViewBase(int id)
 216         : QMainWindow(), LyXView(id), quitting_by_menu_(false),
 217           d(*new GuiViewPrivate)
 218 {
 219         // Qt bug? signal lastWindowClosed does not work
 220         setAttribute(Qt::WA_QuitOnClose, false);
 221         setAttribute(Qt::WA_DeleteOnClose, true);
 222
 223         // hardcode here the platform specific icon size
 224         d.smallIconSize = 14;   // scaling problems
 225         d.normalIconSize = 20;  // ok, default
 226         d.bigIconSize = 26;             // better for some math icons
 227
 228 #ifndef Q_WS_MACX
 229         // assign an icon to main form. We do not do it under Qt/Mac,
 230         // since the icon is provided in the application bundle.
 231         FileName const iconname = libFileSearch("images", "lyx", "png");
 232         if (!iconname.empty())
 233                 setWindowIcon(QPixmap(toqstr(iconname.absFilename())));
 234 #endif
 235
 236         d.tab_widget_ = new TabWorkArea;
 237         QObject::connect(d.tab_widget_, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
 238                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
 239
 240         d.initBackground();
 241         if (d.bg_widget_) {
 242                 LYXERR(Debug::GUI) << "stack widget!" << endl;
 243                 d.stack_widget_ = new QStackedWidget;
 244                 d.stack_widget_->addWidget(d.bg_widget_);
 245                 d.stack_widget_->addWidget(d.tab_widget_);
 246                 setCentralWidget(d.stack_widget_);
 247         } else {
 248                 d.stack_widget_ = 0;
 249                 setCentralWidget(d.tab_widget_);
 250         }
 251
 252         // For Drag&Drop.
 253         setAcceptDrops(true);
 254 }
 255
 256
 257 GuiViewBase::~GuiViewBase()
 258 {
 259         delete d.menubar_;
 260         delete d.toolbars_;
 261         delete &d;
 262 }
 263
 264
 265 void GuiViewBase::close()
 266 {
 267         quitting_by_menu_ = true;
 268         d.tab_widget_->closeAll();
 269         QMainWindow::close();
 270         quitting_by_menu_ = false;
 271 }
 272
 273
 274 void GuiViewBase::setFocus()
 275 {
 276         if (d.tab_widget_->count())
 277                 d.tab_widget_->currentWidget()->setFocus();
 278 }
 279
 280
 281 QMenu* GuiViewBase::createPopupMenu()
 282 {
 283         return d.toolBarPopup(this);
 284 }
 285
 286
 287 void GuiViewBase::init()
 288 {
 289         // GuiToolbars *must* be initialised before GuiMenubar.
 290         d.toolbars_ = new GuiToolbars(*this);
 291         // FIXME: GuiToolbars::init() cannot be integrated in the ctor
 292         // because LyXFunc::getStatus() needs a properly initialized
 293         // GuiToolbars object (for LFUN_TOOLBAR_TOGGLE).
 294         d.toolbars_->init();
 295         d.menubar_ = new GuiMenubar(this, menubackend);
 296
 297         statusBar()->setSizeGripEnabled(true);
 298
 299         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 300                 this, SLOT(update_view_state_qt()));
 301
 302         if (d.stack_widget_)
 303                 d.stack_widget_->setCurrentWidget(d.bg_widget_);
 304 }
 305
 306
 307 void GuiViewBase::closeEvent(QCloseEvent * close_event)
 308 {
 309         // we may have been called through the close window button
 310         // which bypasses the LFUN machinery.
 311         if (!quitting_by_menu_ && theApp()->gui().viewIds().size() == 1) {
 312                 if (!theBufferList().quitWriteAll()) {
 313                         close_event->ignore();
 314                         return;
 315                 }
 316         }
 317
 318         // Make sure that no LFUN use this close to be closed View.
 319         theLyXFunc().setLyXView(0);
 320         // Make sure the timer time out will not trigger a statusbar update.
 321         statusbar_timer_.stop();
 322
 323         theApp()->gui().unregisterView(id());
 324         if (!theApp()->gui().viewIds().empty()) {
 325                 // Just close the window and do nothing else if this is not the
 326                 // last window.
 327                 close_event->accept();
 328                 return;
 329         }
 330
 331         quitting = true;
 332
 333         // this is the place where we leave the frontend.
 334         // it is the only point at which we start quitting.
 335         saveGeometry();
 336         close_event->accept();
 337         // quit the event loop
 338         qApp->quit();
 339 }
 340
 341
 342 void GuiViewBase::dragEnterEvent(QDragEnterEvent * event)
 343 {
 344         if (event->mimeData()->hasUrls())
 345                 event->accept();
 346         /// \todo Ask lyx-devel is this is enough:
 347         /// if (event->mimeData()->hasFormat("text/plain"))
 348         ///     event->acceptProposedAction();
 349 }
 350
 351
 352 void GuiViewBase::dropEvent(QDropEvent* event)
 353 {
 354         QList<QUrl> files = event->mimeData()->urls();
 355         if (files.isEmpty())
 356                 return;
 357
 358         LYXERR(Debug::GUI) << BOOST_CURRENT_FUNCTION
 359                 << " got URLs!" << endl;
 360         for (int i = 0; i != files.size(); ++i) {
 361                 string const file = support::os::internal_path(fromqstr(
 362                         files.at(i).toLocalFile()));
 363                 if (!file.empty())
 364                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 365         }
 366 }
 367
 368
 369 void GuiViewBase::saveGeometry()
 370 {
 371         static bool done = false;
 372         if (done)
 373                 return;
 374         else
 375                 done = true;
 376
 377         // FIXME:
 378         // change the ifdef to 'geometry = normalGeometry();' only
 379         // when Trolltech has fixed the broken normalGeometry on X11:
 380         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 381         // Then also the moveEvent, resizeEvent, and the
 382         // code for floatingGeometry_ can be removed;
 383         // adjust GuiViewBase::setGeometry()
 384
 385         QRect normal_geometry;
 386         int maximized;
 387 #ifdef Q_WS_WIN
 388         normal_geometry = normalGeometry();
 389         if (isMaximized()) {
 390                 maximized = CompletelyMaximized;
 391         } else {
 392                 maximized = NotMaximized;
 393         }
 394 #else
 395         normal_geometry = updateFloatingGeometry();
 396
 397         QDesktopWidget& dw = *qApp->desktop();
 398         QRect desk = dw.availableGeometry(dw.primaryScreen());
 399         // Qt bug on Linux: load completely maximized, vert max. save-> frameGeometry().height() is wrong
 400         if (isMaximized() && desk.width() <= frameGeometry().width() && desk.height() <= frameGeometry().height()) {
 401                 maximized = CompletelyMaximized;
 402                 // maximizing does not work when the window is allready hor. or vert. maximized
 403                 // Tested only on KDE
 404                 int dh = frameGeometry().height() - height();
 405                 if (desk.height() <= normal_geometry.height() + dh)
 406                         normal_geometry.setHeight(normal_geometry.height() - 1);
 407                 int dw = frameGeometry().width() - width();
 408                 if (desk.width() <= normal_geometry.width() + dw)
 409                         normal_geometry.setWidth(normal_geometry.width() - 1);
 410         } else if (desk.height() <= frameGeometry().height()) {
 411                 maximized = VerticallyMaximized;
 412         } else if (desk.width() <= frameGeometry().width()) {
 413                 maximized = HorizontallyMaximized;
 414         } else {
 415                 maximized = NotMaximized;
 416         }
 417
 418
 419 #endif
 420         // save windows size and position
 421         Session & session = LyX::ref().session();
 422         session.sessionInfo().save("WindowWidth", convert<string>(normal_geometry.width()));
 423         session.sessionInfo().save("WindowHeight", convert<string>(normal_geometry.height()));
 424         session.sessionInfo().save("WindowMaximized", convert<string>(maximized));
 425         session.sessionInfo().save("IconSizeXY", convert<string>(iconSize().width()));
 426         if (lyxrc.geometry_xysaved) {
 427                 session.sessionInfo().save("WindowPosX", convert<string>(normal_geometry.x() + d.posx_offset));
 428                 session.sessionInfo().save("WindowPosY", convert<string>(normal_geometry.y() + d.posy_offset));
 429         }
 430         d.toolbars_->saveToolbarInfo();
 431 }
 432
 433
 434 void GuiViewBase::setGeometry(unsigned int width,
 435                           unsigned int height,
 436                           int posx, int posy,
 437                           int maximized,
 438                           unsigned int iconSizeXY,
 439                           const string & geometryArg)
 440 {
 441         // use last value (not at startup)
 442         if (d.lastIconSize != 0)
 443                 setIconSize(d.lastIconSize);
 444         else if (iconSizeXY != 0)
 445                 setIconSize(iconSizeXY);
 446         else
 447                 setIconSize(d.normalIconSize);
 448
 449         // only true when the -geometry option was NOT used
 450         if (width != 0 && height != 0) {
 451                 if (posx != -1 && posy != -1) {
 452                         // if there are startup positioning problems:
 453                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 454                         QDesktopWidget& dw = *qApp->desktop();
 455                         if (dw.isVirtualDesktop()) {
 456                                 if(!dw.geometry().contains(posx, posy)) {
 457                                         posx = 50;
 458                                         posy = 50;
 459                                 }
 460                         } else {
 461                                 // Which system doesn't use a virtual desktop?
 462                                 // TODO save also last screen number and check if it is still availabe.
 463                         }
 464 #ifdef Q_WS_WIN
 465                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 466                         QWidget::setGeometry(posx, posy, width, height);
 467 #else
 468                         resize(width, height);
 469                         move(posx, posy);
 470 #endif
 471                 } else {
 472                         resize(width, height);
 473                 }
 474
 475                 // remember original size
 476                 floatingGeometry_ = QRect(posx, posy, width, height);
 477
 478                 if (maximized != NotMaximized) {
 479                         if (maximized == CompletelyMaximized) {
 480                                 setWindowState(Qt::WindowMaximized);
 481                         } else {
 482 #ifndef Q_WS_WIN
 483                                 // TODO How to set by the window manager?
 484                                 //      setWindowState(Qt::WindowVerticallyMaximized);
 485                                 //      is not possible
 486                                 QDesktopWidget& dw = *qApp->desktop();
 487                                 QRect desk = dw.availableGeometry(dw.primaryScreen());
 488                                 if (maximized == VerticallyMaximized)
 489                                         resize(width, desk.height());
 490                                 if (maximized == HorizontallyMaximized)
 491                                         resize(desk.width(), height);
 492 #endif
 493                         }
 494                 }
 495         }
 496         else
 497         {
 498                 // FIXME: move this code into parse_geometry() (LyX.cpp)
 499 #ifdef Q_WS_WIN
 500                 int x, y;
 501                 int w, h;
 502                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 503                 re.indexIn(toqstr(geometryArg.c_str()));
 504                 w = re.cap(1).toInt();
 505                 h = re.cap(2).toInt();
 506                 x = re.cap(3).toInt();
 507                 y = re.cap(4).toInt();
 508                 QWidget::setGeometry( x, y, w, h );
 509 #else
 510                 // silence warning
 511                 (void)geometryArg;
 512 #endif
 513         }
 514
 515         d.setBackground();
 516
 517         show();
 518
 519         // For an unknown reason, the Window title update is not effective for
 520         // the second windows up until it is shown on screen (Qt bug?).
 521         updateWindowTitle();
 522
 523         // after show geometry() has changed (Qt bug?)
 524         // we compensate the drift when storing the position
 525         d.posx_offset = 0;
 526         d.posy_offset = 0;
 527         if (width != 0 && height != 0)
 528                 if (posx != -1 && posy != -1) {
 529 #ifdef Q_WS_WIN
 530                         d.posx_offset = posx - normalGeometry().x();
 531                         d.posy_offset = posy - normalGeometry().y();
 532 #else
 533 #ifndef Q_WS_MACX
 534                         if (maximized == NotMaximized) {
 535                                 d.posx_offset = posx - geometry().x();
 536                                 d.posy_offset = posy - geometry().y();
 537                         }
 538 #endif
 539 #endif
 540                 }
 541 }
 542
 543
 544 void GuiViewBase::setWindowTitle(docstring const & t, docstring const & it)
 545 {
 546         QString title = windowTitle();
 547         QString new_title = toqstr(t);
 548         if (title != new_title) {
 549                 QMainWindow::setWindowTitle(new_title);
 550                 QMainWindow::setWindowIconText(toqstr(it));
 551         }
 552         if (Buffer const * buf = buffer())
 553                 d.tab_widget_->setTabText(d.tab_widget_->currentIndex(),
 554                         toqstr(makeDisplayPath(buf->fileName(), 30)));
 555 }
 556
 557
 558 void GuiViewBase::message(docstring const & str)
 559 {
 560         statusBar()->showMessage(toqstr(str));
 561         statusbar_timer_.stop();
 562         statusbar_timer_.start(statusbar_timer_value);
 563 }
 564
 565
 566 void GuiViewBase::clearMessage()
 567 {
 568         update_view_state_qt();
 569 }
 570
 571
 572 void GuiViewBase::setIconSize(unsigned int size)
 573 {
 574         d.lastIconSize = size;
 575         QMainWindow::setIconSize(QSize(size, size));
 576 }
 577
 578
 579 void GuiViewBase::smallSizedIcons()
 580 {
 581         setIconSize(d.smallIconSize);
 582 }
 583
 584
 585 void GuiViewBase::normalSizedIcons()
 586 {
 587         setIconSize(d.normalIconSize);
 588 }
 589
 590
 591 void GuiViewBase::bigSizedIcons()
 592 {
 593         setIconSize(d.bigIconSize);
 594 }
 595
 596
 597 void GuiViewBase::update_view_state_qt()
 598 {
 599         if (!hasFocus())
 600                 return;
 601         theLyXFunc().setLyXView(this);
 602         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 603         statusbar_timer_.stop();
 604 }
 605
 606
 607 void GuiViewBase::on_currentWorkAreaChanged(GuiWorkArea * wa)
 608 {
 609         disconnectBuffer();
 610         disconnectBufferView();
 611         connectBufferView(wa->bufferView());
 612         connectBuffer(wa->bufferView().buffer());
 613
 614         updateToc();
 615         // Buffer-dependent dialogs should be updated or
 616         // hidden. This should go here because some dialogs (eg ToC)
 617         // require bv_->text.
 618         getDialogs().updateBufferDependent(true);
 619         updateToolbars();
 620         updateLayoutChoice();
 621         updateWindowTitle();
 622         updateStatusBar();
 623 }
 624
 625
 626 void GuiViewBase::updateStatusBar()
 627 {
 628         // let the user see the explicit message
 629         if (statusbar_timer_.isActive())
 630                 return;
 631
 632         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 633 }
 634
 635
 636 void GuiViewBase::activated(FuncRequest const & func)
 637 {
 638         dispatch(func);
 639 }
 640
 641
 642 bool GuiViewBase::hasFocus() const
 643 {
 644         return qApp->activeWindow() == this;
 645 }
 646
 647
 648 QRect  GuiViewBase::updateFloatingGeometry()
 649 {
 650         QDesktopWidget& dw = *qApp->desktop();
 651         QRect desk = dw.availableGeometry(dw.primaryScreen());
 652         // remember only non-maximized sizes
 653         if (!isMaximized() && desk.width() > frameGeometry().width() && desk.height() > frameGeometry().height()) {
 654                 floatingGeometry_ = QRect(x(), y(), width(), height());
 655         }
 656         return floatingGeometry_;
 657 }
 658
 659
 660 void GuiViewBase::resizeEvent(QResizeEvent *)
 661 {
 662         updateFloatingGeometry();
 663 }
 664
 665
 666 void GuiViewBase::moveEvent(QMoveEvent *)
 667 {
 668         updateFloatingGeometry();
 669 }
 670
 671
 672 bool GuiViewBase::event(QEvent * e)
 673 {
 674         switch (e->type())
 675         {
 676         // Useful debug code:
 677         //case QEvent::ActivationChange:
 678         //case QEvent::WindowDeactivate:
 679         //case QEvent::Paint:
 680         //case QEvent::Enter:
 681         //case QEvent::Leave:
 682         //case QEvent::HoverEnter:
 683         //case QEvent::HoverLeave:
 684         //case QEvent::HoverMove:
 685         //case QEvent::StatusTip:
 686         //case QEvent::DragEnter:
 687         //case QEvent::DragLeave:
 688         //case QEvent::Drop:
 689         //      break;
 690
 691         case QEvent::WindowActivate:
 692                 theApp()->setCurrentView(*this);
 693                 if (d.tab_widget_->count()) {
 694                         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(
 695                                 d.tab_widget_->currentWidget());
 696                         BOOST_ASSERT(wa);
 697                         BufferView & bv = wa->bufferView();
 698                         connectBufferView(bv);
 699                         connectBuffer(bv.buffer());
 700                         // The document structure, name and dialogs might have
 701                         // changed in another view.
 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"