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 <boost/current_function.hpp>
  54
  55 #include <QAction>
  56 #include <QApplication>
  57 #include <QCloseEvent>
  58 #include <QDesktopWidget>
  59 #include <QDragEnterEvent>
  60 #include <QDropEvent>
  61 #include <QList>
  62 #include <QMenu>
  63 #include <QPainter>
  64 #include <QPixmap>
  65 #include <QPushButton>
  66 #include <QStackedWidget>
  67 #include <QStatusBar>
  68 #include <QToolBar>
  69 #include <QUrl>
  70
  71 using std::endl;
  72 using std::string;
  73 using std::vector;
  74
  75 namespace lyx {
  76
  77 using support::FileName;
  78 using support::libFileSearch;
  79 using support::makeDisplayPath;
  80
  81 extern bool quitting;
  82
  83 namespace frontend {
  84
  85 namespace {
  86
  87 int const statusbar_timer_value = 3000;
  88
  89 class BackgroundWidget : public QWidget
  90 {
  91 public:
  92         BackgroundWidget(QString const & file, QString const & text)
  93         {
  94                 splash_ = new QPixmap(file);
  95                 if (!splash_) {
  96                         lyxerr << "could not load splash screen: '" << fromqstr(file) << "'" << endl;
  97                         return;
  98                 }
  99
 100                 QPainter pain(splash_);
 101                 pain.setPen(QColor(255, 255, 0));
 102                 QFont font;
 103                 // The font used to display the version info
 104                 font.setStyleHint(QFont::SansSerif);
 105                 font.setWeight(QFont::Bold);
 106                 font.setPointSize(convert<int>(lyxrc.font_sizes[Font::SIZE_LARGE]));
 107                 pain.setFont(font);
 108                 pain.drawText(260, 270, text);
 109         }
 110
 111         void paintEvent(QPaintEvent *)
 112         {
 113                 if (!splash_)
 114                         return;
 115
 116                 int x = (width() - splash_->width()) / 2;
 117                 int y = (height() - splash_->height()) / 2;
 118                 QPainter pain(this);
 119                 pain.drawPixmap(x, y, *splash_);
 120         }
 121
 122 private:
 123         QPixmap * splash_;
 124 };
 125
 126 };
 127
 128
 129 struct GuiViewBase::GuiViewPrivate
 130 {
 131         string cur_title;
 132
 133         int posx_offset;
 134         int posy_offset;
 135
 136         TabWorkArea * tab_widget_;
 137         QStackedWidget * stack_widget_;
 138         BackgroundWidget * bg_widget_;
 139         /// view's menubar
 140         GuiMenubar * menubar_;
 141         /// view's toolbars
 142         GuiToolbars * toolbars_;
 143         ///
 144         docstring current_layout;
 145
 146         GuiViewPrivate() : posx_offset(0), posy_offset(0) {}
 147
 148         unsigned int smallIconSize;
 149         unsigned int normalIconSize;
 150         unsigned int bigIconSize;
 151         // static needed by "New Window"
 152         static unsigned int lastIconSize;
 153
 154         QMenu * toolBarPopup(GuiViewBase * parent)
 155         {
 156                 // FIXME: translation
 157                 QMenu * menu = new QMenu(parent);
 158                 QActionGroup * iconSizeGroup = new QActionGroup(parent);
 159
 160                 QAction * smallIcons = new QAction(iconSizeGroup);
 161                 smallIcons->setText(qt_("Small-sized icons"));
 162                 smallIcons->setCheckable(true);
 163                 QObject::connect(smallIcons, SIGNAL(triggered()), parent, SLOT(smallSizedIcons()));
 164                 menu->addAction(smallIcons);
 165
 166                 QAction * normalIcons = new QAction(iconSizeGroup);
 167                 normalIcons->setText(qt_("Normal-sized icons"));
 168                 normalIcons->setCheckable(true);
 169                 QObject::connect(normalIcons, SIGNAL(triggered()), parent, SLOT(normalSizedIcons()));
 170                 menu->addAction(normalIcons);
 171
 172                 QAction * bigIcons = new QAction(iconSizeGroup);
 173                 bigIcons->setText(qt_("Big-sized icons"));
 174                 bigIcons->setCheckable(true);
 175                 QObject::connect(bigIcons, SIGNAL(triggered()), parent, SLOT(bigSizedIcons()));
 176                 menu->addAction(bigIcons);
 177
 178                 unsigned int cur = parent->iconSize().width();
 179                 if ( cur == parent->d.smallIconSize)
 180                         smallIcons->setChecked(true);
 181                 else if (cur == parent->d.normalIconSize)
 182                         normalIcons->setChecked(true);
 183                 else if (cur == parent->d.bigIconSize)
 184                         bigIcons->setChecked(true);
 185
 186                 return menu;
 187         }
 188
 189         void initBackground()
 190         {
 191                 bg_widget_ = 0;
 192                 LYXERR(Debug::GUI) << "show banner: " << lyxrc.show_banner << endl;
 193                 /// The text to be written on top of the pixmap
 194                 QString const text = lyx_version ? QString(lyx_version) : qt_("unknown version");
 195                 FileName const file = support::libFileSearch("images", "banner", "png");
 196                 if (file.empty())
 197                         return;
 198
 199                 bg_widget_ = new BackgroundWidget(toqstr(file.absFilename()), text);
 200         }
 201
 202         void setBackground()
 203         {
 204                 if (!bg_widget_)
 205                         return;
 206
 207                 stack_widget_->setCurrentWidget(bg_widget_);
 208                 bg_widget_->setUpdatesEnabled(true);
 209         }
 210 };
 211
 212
 213 unsigned int GuiViewBase::GuiViewPrivate::lastIconSize = 0;
 214
 215
 216 GuiViewBase::GuiViewBase(int id)
 217         : QMainWindow(), LyXView(id), quitting_by_menu_(false),
 218           d(*new GuiViewPrivate)
 219 {
 220         // Qt bug? signal lastWindowClosed does not work
 221         setAttribute(Qt::WA_QuitOnClose, false);
 222         setAttribute(Qt::WA_DeleteOnClose, true);
 223
 224         // hardcode here the platform specific icon size
 225         d.smallIconSize = 14;   // scaling problems
 226         d.normalIconSize = 20;  // ok, default
 227         d.bigIconSize = 26;             // better for some math icons
 228
 229 #ifndef Q_WS_MACX
 230         // assign an icon to main form. We do not do it under Qt/Mac,
 231         // since the icon is provided in the application bundle.
 232         FileName const iconname = libFileSearch("images", "lyx", "png");
 233         if (!iconname.empty())
 234                 setWindowIcon(QPixmap(toqstr(iconname.absFilename())));
 235 #endif
 236
 237         d.tab_widget_ = new TabWorkArea;
 238         QObject::connect(d.tab_widget_, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
 239                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
 240
 241         d.initBackground();
 242         if (d.bg_widget_) {
 243                 LYXERR(Debug::GUI) << "stack widget!" << endl;
 244                 d.stack_widget_ = new QStackedWidget;
 245                 d.stack_widget_->addWidget(d.bg_widget_);
 246                 d.stack_widget_->addWidget(d.tab_widget_);
 247                 setCentralWidget(d.stack_widget_);
 248         } else {
 249                 d.stack_widget_ = 0;
 250                 setCentralWidget(d.tab_widget_);
 251         }
 252
 253         // For Drag&Drop.
 254         setAcceptDrops(true);
 255 }
 256
 257
 258 GuiViewBase::~GuiViewBase()
 259 {
 260         delete d.menubar_;
 261         delete d.toolbars_;
 262         delete &d;
 263 }
 264
 265
 266 void GuiViewBase::close()
 267 {
 268         quitting_by_menu_ = true;
 269         d.tab_widget_->closeAll();
 270         QMainWindow::close();
 271         quitting_by_menu_ = false;
 272 }
 273
 274
 275 void GuiViewBase::setFocus()
 276 {
 277         if (d.tab_widget_->count())
 278                 d.tab_widget_->currentWidget()->setFocus();
 279 }
 280
 281
 282 QMenu* GuiViewBase::createPopupMenu()
 283 {
 284         return d.toolBarPopup(this);
 285 }
 286
 287
 288 void GuiViewBase::init()
 289 {
 290         // GuiToolbars *must* be initialised before GuiMenubar.
 291         d.toolbars_ = new GuiToolbars(*this);
 292         // FIXME: GuiToolbars::init() cannot be integrated in the ctor
 293         // because LyXFunc::getStatus() needs a properly initialized
 294         // GuiToolbars object (for LFUN_TOOLBAR_TOGGLE).
 295         d.toolbars_->init();
 296         d.menubar_ = new GuiMenubar(this, menubackend);
 297
 298         statusBar()->setSizeGripEnabled(true);
 299
 300         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 301                 this, SLOT(update_view_state_qt()));
 302
 303         if (d.stack_widget_)
 304                 d.stack_widget_->setCurrentWidget(d.bg_widget_);
 305 }
 306
 307
 308 void GuiViewBase::closeEvent(QCloseEvent * close_event)
 309 {
 310         // we may have been called through the close window button
 311         // which bypasses the LFUN machinery.
 312         if (!quitting_by_menu_ && theApp()->gui().viewIds().size() == 1) {
 313                 if (!theBufferList().quitWriteAll()) {
 314                         close_event->ignore();
 315                         return;
 316                 }
 317         }
 318
 319         // Make sure that no LFUN use this close to be closed View.
 320         theLyXFunc().setLyXView(0);
 321         // Make sure the timer time out will not trigger a statusbar update.
 322         statusbar_timer_.stop();
 323
 324         theApp()->gui().unregisterView(id());
 325         if (!theApp()->gui().viewIds().empty()) {
 326                 // Just close the window and do nothing else if this is not the
 327                 // last window.
 328                 close_event->accept();
 329                 return;
 330         }
 331
 332         quitting = true;
 333
 334         // this is the place where we leave the frontend.
 335         // it is the only point at which we start quitting.
 336         saveGeometry();
 337         close_event->accept();
 338         // quit the event loop
 339         qApp->quit();
 340 }
 341
 342
 343 void GuiViewBase::dragEnterEvent(QDragEnterEvent * event)
 344 {
 345         if (event->mimeData()->hasUrls())
 346                 event->accept();
 347         /// \todo Ask lyx-devel is this is enough:
 348         /// if (event->mimeData()->hasFormat("text/plain"))
 349         ///     event->acceptProposedAction();
 350 }
 351
 352
 353 void GuiViewBase::dropEvent(QDropEvent* event)
 354 {
 355         QList<QUrl> files = event->mimeData()->urls();
 356         if (files.isEmpty())
 357                 return;
 358
 359         LYXERR(Debug::GUI) << BOOST_CURRENT_FUNCTION
 360                 << " got URLs!" << endl;
 361         for (int i = 0; i != files.size(); ++i) {
 362                 string const file = support::os::internal_path(fromqstr(
 363                         files.at(i).toLocalFile()));
 364                 if (!file.empty())
 365                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 366         }
 367 }
 368
 369
 370 void GuiViewBase::saveGeometry()
 371 {
 372         static bool done = false;
 373         if (done)
 374                 return;
 375         else
 376                 done = true;
 377
 378         // FIXME:
 379         // change the ifdef to 'geometry = normalGeometry();' only
 380         // when Trolltech has fixed the broken normalGeometry on X11:
 381         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 382         // Then also the moveEvent, resizeEvent, and the
 383         // code for floatingGeometry_ can be removed;
 384         // adjust GuiViewBase::setGeometry()
 385
 386         QRect normal_geometry;
 387         int maximized;
 388 #ifdef Q_WS_WIN
 389         normal_geometry = normalGeometry();
 390         if (isMaximized()) {
 391                 maximized = CompletelyMaximized;
 392         } else {
 393                 maximized = NotMaximized;
 394         }
 395 #else
 396         normal_geometry = updateFloatingGeometry();
 397
 398         QDesktopWidget& dw = *qApp->desktop();
 399         QRect desk = dw.availableGeometry(dw.primaryScreen());
 400         // Qt bug on Linux: load completely maximized, vert max. save-> frameGeometry().height() is wrong
 401         if (isMaximized() && desk.width() <= frameGeometry().width() && desk.height() <= frameGeometry().height()) {
 402                 maximized = CompletelyMaximized;
 403                 // maximizing does not work when the window is allready hor. or vert. maximized
 404                 // Tested only on KDE
 405                 int dh = frameGeometry().height() - height();
 406                 if (desk.height() <= normal_geometry.height() + dh)
 407                         normal_geometry.setHeight(normal_geometry.height() - 1);
 408                 int dw = frameGeometry().width() - width();
 409                 if (desk.width() <= normal_geometry.width() + dw)
 410                         normal_geometry.setWidth(normal_geometry.width() - 1);
 411         } else if (desk.height() <= frameGeometry().height()) {
 412                 maximized = VerticallyMaximized;
 413         } else if (desk.width() <= frameGeometry().width()) {
 414                 maximized = HorizontallyMaximized;
 415         } else {
 416                 maximized = NotMaximized;
 417         }
 418
 419
 420 #endif
 421         // save windows size and position
 422         Session & session = LyX::ref().session();
 423         session.sessionInfo().save("WindowWidth", convert<string>(normal_geometry.width()));
 424         session.sessionInfo().save("WindowHeight", convert<string>(normal_geometry.height()));
 425         session.sessionInfo().save("WindowMaximized", convert<string>(maximized));
 426         session.sessionInfo().save("IconSizeXY", convert<string>(iconSize().width()));
 427         if (lyxrc.geometry_xysaved) {
 428                 session.sessionInfo().save("WindowPosX", convert<string>(normal_geometry.x() + d.posx_offset));
 429                 session.sessionInfo().save("WindowPosY", convert<string>(normal_geometry.y() + d.posy_offset));
 430         }
 431         d.toolbars_->saveToolbarInfo();
 432 }
 433
 434
 435 void GuiViewBase::setGeometry(unsigned int width,
 436                           unsigned int height,
 437                           int posx, int posy,
 438                           int maximized,
 439                           unsigned int iconSizeXY,
 440                           const string & geometryArg)
 441 {
 442         // use last value (not at startup)
 443         if (d.lastIconSize != 0)
 444                 setIconSize(d.lastIconSize);
 445         else if (iconSizeXY != 0)
 446                 setIconSize(iconSizeXY);
 447         else
 448                 setIconSize(d.normalIconSize);
 449
 450         // only true when the -geometry option was NOT used
 451         if (width != 0 && height != 0) {
 452                 if (posx != -1 && posy != -1) {
 453                         // if there are startup positioning problems:
 454                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 455                         QDesktopWidget& dw = *qApp->desktop();
 456                         if (dw.isVirtualDesktop()) {
 457                                 if(!dw.geometry().contains(posx, posy)) {
 458                                         posx = 50;
 459                                         posy = 50;
 460                                 }
 461                         } else {
 462                                 // Which system doesn't use a virtual desktop?
 463                                 // TODO save also last screen number and check if it is still availabe.
 464                         }
 465 #ifdef Q_WS_WIN
 466                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 467                         QWidget::setGeometry(posx, posy, width, height);
 468 #else
 469                         resize(width, height);
 470                         move(posx, posy);
 471 #endif
 472                 } else {
 473                         resize(width, height);
 474                 }
 475
 476                 // remember original size
 477                 floatingGeometry_ = QRect(posx, posy, width, height);
 478
 479                 if (maximized != NotMaximized) {
 480                         if (maximized == CompletelyMaximized) {
 481                                 setWindowState(Qt::WindowMaximized);
 482                         } else {
 483 #ifndef Q_WS_WIN
 484                                 // TODO How to set by the window manager?
 485                                 //      setWindowState(Qt::WindowVerticallyMaximized);
 486                                 //      is not possible
 487                                 QDesktopWidget& dw = *qApp->desktop();
 488                                 QRect desk = dw.availableGeometry(dw.primaryScreen());
 489                                 if (maximized == VerticallyMaximized)
 490                                         resize(width, desk.height());
 491                                 if (maximized == HorizontallyMaximized)
 492                                         resize(desk.width(), height);
 493 #endif
 494                         }
 495                 }
 496         }
 497         else
 498         {
 499                 // FIXME: move this code into parse_geometry() (LyX.cpp)
 500 #ifdef Q_WS_WIN
 501                 int x, y;
 502                 int w, h;
 503                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 504                 re.indexIn(toqstr(geometryArg.c_str()));
 505                 w = re.cap(1).toInt();
 506                 h = re.cap(2).toInt();
 507                 x = re.cap(3).toInt();
 508                 y = re.cap(4).toInt();
 509                 QWidget::setGeometry( x, y, w, h );
 510 #else
 511                 // silence warning
 512                 (void)geometryArg;
 513 #endif
 514         }
 515
 516         d.setBackground();
 517
 518         show();
 519
 520         // For an unknown reason, the Window title update is not effective for
 521         // the second windows up until it is shown on screen (Qt bug?).
 522         updateWindowTitle();
 523
 524         // after show geometry() has changed (Qt bug?)
 525         // we compensate the drift when storing the position
 526         d.posx_offset = 0;
 527         d.posy_offset = 0;
 528         if (width != 0 && height != 0)
 529                 if (posx != -1 && posy != -1) {
 530 #ifdef Q_WS_WIN
 531                         d.posx_offset = posx - normalGeometry().x();
 532                         d.posy_offset = posy - normalGeometry().y();
 533 #else
 534 #ifndef Q_WS_MACX
 535                         if (maximized == NotMaximized) {
 536                                 d.posx_offset = posx - geometry().x();
 537                                 d.posy_offset = posy - geometry().y();
 538                         }
 539 #endif
 540 #endif
 541                 }
 542 }
 543
 544
 545 void GuiViewBase::setWindowTitle(docstring const & t, docstring const & it)
 546 {
 547         QString title = windowTitle();
 548         QString new_title = toqstr(t);
 549         if (title != new_title) {
 550                 QMainWindow::setWindowTitle(new_title);
 551                 QMainWindow::setWindowIconText(toqstr(it));
 552         }
 553         if (Buffer const * buf = buffer())
 554                 d.tab_widget_->setTabText(d.tab_widget_->currentIndex(),
 555                         toqstr(makeDisplayPath(buf->fileName(), 30)));
 556 }
 557
 558
 559 void GuiViewBase::message(docstring const & str)
 560 {
 561         statusBar()->showMessage(toqstr(str));
 562         statusbar_timer_.stop();
 563         statusbar_timer_.start(statusbar_timer_value);
 564 }
 565
 566
 567 void GuiViewBase::clearMessage()
 568 {
 569         update_view_state_qt();
 570 }
 571
 572
 573 void GuiViewBase::setIconSize(unsigned int size)
 574 {
 575         d.lastIconSize = size;
 576         QMainWindow::setIconSize(QSize(size, size));
 577 }
 578
 579
 580 void GuiViewBase::smallSizedIcons()
 581 {
 582         setIconSize(d.smallIconSize);
 583 }
 584
 585
 586 void GuiViewBase::normalSizedIcons()
 587 {
 588         setIconSize(d.normalIconSize);
 589 }
 590
 591
 592 void GuiViewBase::bigSizedIcons()
 593 {
 594         setIconSize(d.bigIconSize);
 595 }
 596
 597
 598 void GuiViewBase::update_view_state_qt()
 599 {
 600         if (!hasFocus())
 601                 return;
 602         theLyXFunc().setLyXView(this);
 603         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 604         statusbar_timer_.stop();
 605 }
 606
 607
 608 void GuiViewBase::on_currentWorkAreaChanged(GuiWorkArea * wa)
 609 {
 610         disconnectBuffer();
 611         disconnectBufferView();
 612         connectBufferView(wa->bufferView());
 613         connectBuffer(wa->bufferView().buffer());
 614
 615         updateToc();
 616         // Buffer-dependent dialogs should be updated or
 617         // hidden. This should go here because some dialogs (eg ToC)
 618         // require bv_->text.
 619         getDialogs().updateBufferDependent(true);
 620         updateToolbars();
 621         updateLayoutChoice();
 622         updateWindowTitle();
 623         updateStatusBar();
 624 }
 625
 626
 627 void GuiViewBase::updateStatusBar()
 628 {
 629         // let the user see the explicit message
 630         if (statusbar_timer_.isActive())
 631                 return;
 632
 633         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 634 }
 635
 636
 637 void GuiViewBase::activated(FuncRequest const & func)
 638 {
 639         dispatch(func);
 640 }
 641
 642
 643 bool GuiViewBase::hasFocus() const
 644 {
 645         return qApp->activeWindow() == this;
 646 }
 647
 648
 649 QRect  GuiViewBase::updateFloatingGeometry()
 650 {
 651         QDesktopWidget& dw = *qApp->desktop();
 652         QRect desk = dw.availableGeometry(dw.primaryScreen());
 653         // remember only non-maximized sizes
 654         if (!isMaximized() && desk.width() > frameGeometry().width() && desk.height() > frameGeometry().height()) {
 655                 floatingGeometry_ = QRect(x(), y(), width(), height());
 656         }
 657         return floatingGeometry_;
 658 }
 659
 660
 661 void GuiViewBase::resizeEvent(QResizeEvent *)
 662 {
 663         updateFloatingGeometry();
 664 }
 665
 666
 667 void GuiViewBase::moveEvent(QMoveEvent *)
 668 {
 669         updateFloatingGeometry();
 670 }
 671
 672
 673 bool GuiViewBase::event(QEvent * e)
 674 {
 675         switch (e->type())
 676         {
 677         // Useful debug code:
 678         //case QEvent::ActivationChange:
 679         //case QEvent::WindowDeactivate:
 680         //case QEvent::Paint:
 681         //case QEvent::Enter:
 682         //case QEvent::Leave:
 683         //case QEvent::HoverEnter:
 684         //case QEvent::HoverLeave:
 685         //case QEvent::HoverMove:
 686         //case QEvent::StatusTip:
 687         //case QEvent::DragEnter:
 688         //case QEvent::DragLeave:
 689         //case QEvent::Drop:
 690         //      break;
 691
 692         case QEvent::WindowActivate: {
 693                 theApp()->setCurrentView(*this);
 694                 GuiWorkArea * wa = d.tab_widget_->currentWorkArea();
 695                 if (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                         updateWindowTitle();
 702                         getDialogs().updateBufferDependent(true);
 703                 }
 704                 return QMainWindow::event(e);
 705         }
 706         case QEvent::ShortcutOverride: {
 707                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 708                 if (d.tab_widget_->count() == 0) {
 709                         theLyXFunc().setLyXView(this);
 710                         KeySymbol sym;
 711                         setKeySymbol(&sym, ke);
 712                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 713                         e->accept();
 714                         return true;
 715                 }
 716                 if (ke->key() == Qt::Key_Tab || ke->key() == Qt::Key_Backtab) {
 717                         KeySymbol sym;
 718                         setKeySymbol(&sym, ke);
 719                         currentWorkArea()->processKeySym(sym, NoModifier);
 720                         e->accept();
 721                         return true;
 722                 }
 723         }
 724         default:
 725                 return QMainWindow::event(e);
 726         }
 727 }
 728
 729
 730 bool GuiViewBase::focusNextPrevChild(bool /*next*/)
 731 {
 732         setFocus();
 733         return true;
 734 }
 735
 736
 737 void GuiViewBase::showView()
 738 {
 739         QMainWindow::setWindowTitle(qt_("LyX"));
 740         QMainWindow::show();
 741         updateFloatingGeometry();
 742 }
 743
 744
 745 void GuiViewBase::busy(bool yes)
 746 {
 747         GuiWorkArea * wa = d.tab_widget_->currentWorkArea();
 748         if (wa) {
 749                 wa->setUpdatesEnabled(!yes);
 750                 if (yes)
 751                         wa->stopBlinkingCursor();
 752                 else
 753                         wa->startBlinkingCursor();
 754         }
 755
 756         if (yes)
 757                 QApplication::setOverrideCursor(Qt::WaitCursor);
 758         else
 759                 QApplication::restoreOverrideCursor();
 760 }
 761
 762
 763 GuiToolbar * GuiViewBase::makeToolbar(ToolbarInfo const & tbinfo, bool newline)
 764 {
 765         GuiToolbar * toolBar = new GuiToolbar(tbinfo, *this);
 766
 767         if (tbinfo.flags & ToolbarInfo::TOP) {
 768                 if (newline)
 769                         addToolBarBreak(Qt::TopToolBarArea);
 770                 addToolBar(Qt::TopToolBarArea, toolBar);
 771         }
 772
 773         if (tbinfo.flags & ToolbarInfo::BOTTOM) {
 774 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 775 #if (QT_VERSION >= 0x040202)
 776                 if (newline)
 777                         addToolBarBreak(Qt::BottomToolBarArea);
 778 #endif
 779                 addToolBar(Qt::BottomToolBarArea, toolBar);
 780         }
 781
 782         if (tbinfo.flags & ToolbarInfo::LEFT) {
 783 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 784 #if (QT_VERSION >= 0x040202)
 785                 if (newline)
 786                         addToolBarBreak(Qt::LeftToolBarArea);
 787 #endif
 788                 addToolBar(Qt::LeftToolBarArea, toolBar);
 789         }
 790
 791         if (tbinfo.flags & ToolbarInfo::RIGHT) {
 792 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 793 #if (QT_VERSION >= 0x040202)
 794                 if (newline)
 795                         addToolBarBreak(Qt::RightToolBarArea);
 796 #endif
 797                 addToolBar(Qt::RightToolBarArea, toolBar);
 798         }
 799
 800         // The following does not work so I cannot restore to exact toolbar location
 801         /*
 802         ToolbarSection::ToolbarInfo & tbinfo = LyX::ref().session().toolbars().load(tbinfo.name);
 803         toolBar->move(tbinfo.posx, tbinfo.posy);
 804         */
 805
 806         return toolBar;
 807 }
 808
 809
 810 WorkArea * GuiViewBase::workArea(Buffer & buffer)
 811 {
 812         return d.tab_widget_->workArea(buffer);
 813 }
 814
 815
 816 WorkArea * GuiViewBase::addWorkArea(Buffer & buffer)
 817 {
 818         GuiWorkArea * wa = new GuiWorkArea(buffer, *this);
 819         wa->setUpdatesEnabled(false);
 820         d.tab_widget_->addTab(wa, toqstr(makeDisplayPath(buffer.fileName(), 30)));
 821         wa->bufferView().updateMetrics(false);
 822         if (d.stack_widget_)
 823                 d.stack_widget_->setCurrentWidget(d.tab_widget_);
 824         // Hide tabbar if there's only one tab.
 825         d.tab_widget_->showBar(d.tab_widget_->count() > 1);
 826         return wa;
 827 }
 828
 829
 830 WorkArea * GuiViewBase::currentWorkArea()
 831 {
 832         return d.tab_widget_->currentWorkArea();
 833 }
 834
 835
 836 WorkArea const * GuiViewBase::currentWorkArea() const
 837 {
 838         return d.tab_widget_->currentWorkArea();
 839 }
 840
 841
 842 void GuiViewBase::setCurrentWorkArea(WorkArea * work_area)
 843 {
 844         BOOST_ASSERT(work_area);
 845
 846         // Changing work area can result from opening a file so
 847         // update the toc in any case.
 848         updateToc();
 849
 850         GuiWorkArea * wa = static_cast<GuiWorkArea *>(work_area);
 851         BOOST_ASSERT(wa);
 852         d.tab_widget_->setCurrentWorkArea(wa);
 853 }
 854
 855
 856 void GuiViewBase::removeWorkArea(WorkArea * work_area)
 857 {
 858         BOOST_ASSERT(work_area);
 859         if (work_area == currentWorkArea()) {
 860                 disconnectBuffer();
 861                 disconnectBufferView();
 862         }
 863
 864         // removing a work area often results from closing a file so
 865         // update the toc in any case.
 866         updateToc();
 867
 868         GuiWorkArea * gwa = static_cast<GuiWorkArea *>(work_area);
 869         BOOST_ASSERT(gwa);
 870         d.tab_widget_->removeWorkArea(gwa);
 871
 872         getDialogs().hideBufferDependent();
 873
 874         if (d.tab_widget_->count() == 0 && d.stack_widget_)
 875                 // No more work area, switch to the background widget.
 876                 d.setBackground();
 877 }
 878
 879
 880 void GuiViewBase::showMiniBuffer(bool visible)
 881 {
 882         d.toolbars_->showCommandBuffer(visible);
 883 }
 884
 885
 886 void GuiViewBase::openMenu(docstring const & name)
 887 {
 888         d.menubar_->openByName(toqstr(name));
 889 }
 890
 891
 892 void GuiViewBase::openLayoutList()
 893 {
 894         d.toolbars_->openLayoutList();
 895 }
 896
 897
 898 void GuiViewBase::updateLayoutChoice()
 899 {
 900         // Don't show any layouts without a buffer
 901         if (!buffer()) {
 902                 d.toolbars_->clearLayoutList();
 903                 return;
 904         }
 905
 906         // Update the layout display
 907         if (d.toolbars_->updateLayoutList(buffer()->params().getTextClassPtr())) {
 908                 d.current_layout = buffer()->params().getTextClass().defaultLayoutName();
 909         }
 910
 911         docstring const & layout = currentWorkArea()->bufferView().cursor().
 912                 innerParagraph().layout()->name();
 913
 914         if (layout != d.current_layout) {
 915                 d.toolbars_->setLayout(layout);
 916                 d.current_layout = layout;
 917         }
 918 }
 919
 920
 921 bool GuiViewBase::isToolbarVisible(std::string const & id)
 922 {
 923         return d.toolbars_->visible(id);
 924 }
 925
 926 void GuiViewBase::updateToolbars()
 927 {
 928         WorkArea * wa = currentWorkArea();
 929         if (wa) {
 930                 bool const math =
 931                         wa->bufferView().cursor().inMathed();
 932                 bool const table =
 933                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 934                 bool const review =
 935                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
 936                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
 937
 938                 d.toolbars_->update(math, table, review);
 939         } else
 940                 d.toolbars_->update(false, false, false);
 941
 942         // update read-only status of open dialogs.
 943         getDialogs().checkStatus();
 944 }
 945
 946
 947 ToolbarInfo * GuiViewBase::getToolbarInfo(string const & name)
 948 {
 949         return d.toolbars_->getToolbarInfo(name);
 950 }
 951
 952
 953 void GuiViewBase::toggleToolbarState(string const & name, bool allowauto)
 954 {
 955         // it is possible to get current toolbar status like this,...
 956         // but I decide to obey the order of ToolbarBackend::flags
 957         // and disregard real toolbar status.
 958         // toolbars_->saveToolbarInfo();
 959         //
 960         // toggle state on/off/auto
 961         d.toolbars_->toggleToolbarState(name, allowauto);
 962         // update toolbar
 963         updateToolbars();
 964 }
 965
 966
 967 } // namespace frontend
 968 } // namespace lyx
 969
 970 #include "GuiView_moc.cpp"