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 "TextClass.h"
  51 #include "ToolbarBackend.h"
  52 #include "version.h"
  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 <QSplitter>
  66 #include <QStackedWidget>
  67 #include <QStatusBar>
  68 #include <QToolBar>
  69 #include <QUrl>
  70
  71 #include <boost/current_function.hpp>
  72
  73 using std::endl;
  74 using std::string;
  75 using std::vector;
  76
  77 namespace lyx {
  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 GuiView::GuiViewPrivate
 128 {
 129         string cur_title;
 130
 131         int posx_offset;
 132         int posy_offset;
 133
 134         GuiWorkArea * current_work_area_;
 135         QSplitter * splitter_;
 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()
 146                 : current_work_area_(0), posx_offset(0), posy_offset(0)
 147         {}
 148
 149         ~GuiViewPrivate()
 150         {
 151                 delete splitter_;
 152                 delete bg_widget_;
 153                 delete stack_widget_;
 154                 delete menubar_;
 155                 delete toolbars_;
 156         }
 157
 158         unsigned int smallIconSize;
 159         unsigned int normalIconSize;
 160         unsigned int bigIconSize;
 161         // static needed by "New Window"
 162         static unsigned int lastIconSize;
 163
 164         QMenu * toolBarPopup(GuiView * parent)
 165         {
 166                 // FIXME: translation
 167                 QMenu * menu = new QMenu(parent);
 168                 QActionGroup * iconSizeGroup = new QActionGroup(parent);
 169
 170                 QAction * smallIcons = new QAction(iconSizeGroup);
 171                 smallIcons->setText(qt_("Small-sized icons"));
 172                 smallIcons->setCheckable(true);
 173                 QObject::connect(smallIcons, SIGNAL(triggered()), parent, SLOT(smallSizedIcons()));
 174                 menu->addAction(smallIcons);
 175
 176                 QAction * normalIcons = new QAction(iconSizeGroup);
 177                 normalIcons->setText(qt_("Normal-sized icons"));
 178                 normalIcons->setCheckable(true);
 179                 QObject::connect(normalIcons, SIGNAL(triggered()), parent, SLOT(normalSizedIcons()));
 180                 menu->addAction(normalIcons);
 181
 182                 QAction * bigIcons = new QAction(iconSizeGroup);
 183                 bigIcons->setText(qt_("Big-sized icons"));
 184                 bigIcons->setCheckable(true);
 185                 QObject::connect(bigIcons, SIGNAL(triggered()), parent, SLOT(bigSizedIcons()));
 186                 menu->addAction(bigIcons);
 187
 188                 unsigned int cur = parent->iconSize().width();
 189                 if ( cur == parent->d.smallIconSize)
 190                         smallIcons->setChecked(true);
 191                 else if (cur == parent->d.normalIconSize)
 192                         normalIcons->setChecked(true);
 193                 else if (cur == parent->d.bigIconSize)
 194                         bigIcons->setChecked(true);
 195
 196                 return menu;
 197         }
 198
 199         void initBackground()
 200         {
 201                 LYXERR(Debug::GUI) << "show banner: " << lyxrc.show_banner << endl;
 202                 /// The text to be written on top of the pixmap
 203                 QString const text = lyx_version ? QString(lyx_version) : qt_("unknown version");
 204                 bg_widget_ = new BackgroundWidget(":/images/banner.png", text);
 205         }
 206
 207         void setBackground()
 208         {
 209                 stack_widget_->setCurrentWidget(bg_widget_);
 210                 bg_widget_->setUpdatesEnabled(true);
 211         }
 212
 213         TabWorkArea * tabWorkArea(int i)
 214         {
 215                 return dynamic_cast<TabWorkArea *>(splitter_->widget(i));
 216         }
 217
 218         TabWorkArea * currentTabWorkArea()
 219         {
 220                 if (splitter_->count() == 1)
 221                         // The first TabWorkArea is always the first one, if any.
 222                         return tabWorkArea(0);
 223
 224                 TabWorkArea * tab_widget = 0;
 225                 for (int i = 0; i != splitter_->count(); ++i) {
 226                         QWidget * w = splitter_->widget(i);
 227                         if (!w->hasFocus())
 228                                 continue;
 229                         tab_widget = dynamic_cast<TabWorkArea *>(w);
 230                         if (tab_widget)
 231                                 break;
 232                 }
 233
 234                 return tab_widget;
 235         }
 236 };
 237
 238
 239 unsigned int GuiView::GuiViewPrivate::lastIconSize = 0;
 240
 241
 242 GuiView::GuiView(int id)
 243         : QMainWindow(), LyXView(id), quitting_by_menu_(false),
 244           d(*new GuiViewPrivate)
 245 {
 246         // Qt bug? signal lastWindowClosed does not work
 247         setAttribute(Qt::WA_QuitOnClose, false);
 248         setAttribute(Qt::WA_DeleteOnClose, true);
 249
 250         // hardcode here the platform specific icon size
 251         d.smallIconSize = 14;   // scaling problems
 252         d.normalIconSize = 20;  // ok, default
 253         d.bigIconSize = 26;             // better for some math icons
 254
 255 #ifndef Q_WS_MACX
 256         // assign an icon to main form. We do not do it under Qt/Mac,
 257         // since the icon is provided in the application bundle.
 258         setWindowIcon(QPixmap(":/images/lyx.png"));
 259 #endif
 260
 261
 262         d.splitter_ = new QSplitter;
 263
 264         d.initBackground();
 265         LYXERR(Debug::GUI) << "stack widget!" << endl;
 266         d.stack_widget_ = new QStackedWidget;
 267         d.stack_widget_->addWidget(d.bg_widget_);
 268         d.stack_widget_->addWidget(d.splitter_);
 269         setCentralWidget(d.stack_widget_);
 270
 271         // For Drag&Drop.
 272         setAcceptDrops(true);
 273 }
 274
 275
 276 GuiView::~GuiView()
 277 {
 278         delete &d;
 279 }
 280
 281
 282 void GuiView::close()
 283 {
 284         quitting_by_menu_ = true;
 285         d.current_work_area_ = 0;
 286         for (int i = 0; i != d.splitter_->count(); ++i) {
 287                 TabWorkArea * twa = d.tabWorkArea(i);
 288                 if (twa)
 289                         twa->closeAll();
 290         }
 291         QMainWindow::close();
 292         quitting_by_menu_ = false;
 293 }
 294
 295
 296 void GuiView::setFocus()
 297 {
 298         if (d.current_work_area_)
 299                 d.current_work_area_->setFocus();
 300         else
 301                 QWidget::setFocus();
 302 }
 303
 304
 305 QMenu* GuiView::createPopupMenu()
 306 {
 307         return d.toolBarPopup(this);
 308 }
 309
 310
 311 void GuiView::init()
 312 {
 313         // GuiToolbars *must* be initialised before GuiMenubar.
 314         d.toolbars_ = new GuiToolbars(*this);
 315         // FIXME: GuiToolbars::init() cannot be integrated in the ctor
 316         // because LyXFunc::getStatus() needs a properly initialized
 317         // GuiToolbars object (for LFUN_TOOLBAR_TOGGLE).
 318         d.toolbars_->init();
 319         d.menubar_ = new GuiMenubar(this, menubackend);
 320
 321         statusBar()->setSizeGripEnabled(true);
 322
 323         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 324                 this, SLOT(update_view_state_qt()));
 325
 326         d.setBackground();
 327 }
 328
 329
 330 void GuiView::closeEvent(QCloseEvent * close_event)
 331 {
 332         // we may have been called through the close window button
 333         // which bypasses the LFUN machinery.
 334         if (!quitting_by_menu_ && theApp()->gui().viewIds().size() == 1) {
 335                 if (!theBufferList().quitWriteAll()) {
 336                         close_event->ignore();
 337                         return;
 338                 }
 339         }
 340
 341         // Make sure that no LFUN use this close to be closed View.
 342         theLyXFunc().setLyXView(0);
 343         // Make sure the timer time out will not trigger a statusbar update.
 344         statusbar_timer_.stop();
 345
 346         theApp()->gui().unregisterView(id());
 347         if (!theApp()->gui().viewIds().empty()) {
 348                 // Just close the window and do nothing else if this is not the
 349                 // last window.
 350                 close_event->accept();
 351                 return;
 352         }
 353
 354         quitting = true;
 355
 356         // this is the place where we leave the frontend.
 357         // it is the only point at which we start quitting.
 358         saveGeometry();
 359         close_event->accept();
 360         // quit the event loop
 361         qApp->quit();
 362 }
 363
 364
 365 void GuiView::dragEnterEvent(QDragEnterEvent * event)
 366 {
 367         if (event->mimeData()->hasUrls())
 368                 event->accept();
 369         /// \todo Ask lyx-devel is this is enough:
 370         /// if (event->mimeData()->hasFormat("text/plain"))
 371         ///     event->acceptProposedAction();
 372 }
 373
 374
 375 void GuiView::dropEvent(QDropEvent* event)
 376 {
 377         QList<QUrl> files = event->mimeData()->urls();
 378         if (files.isEmpty())
 379                 return;
 380
 381         LYXERR(Debug::GUI) << BOOST_CURRENT_FUNCTION
 382                 << " got URLs!" << endl;
 383         for (int i = 0; i != files.size(); ++i) {
 384                 string const file = support::os::internal_path(fromqstr(
 385                         files.at(i).toLocalFile()));
 386                 if (!file.empty())
 387                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 388         }
 389 }
 390
 391
 392 void GuiView::saveGeometry()
 393 {
 394         static bool done = false;
 395         if (done)
 396                 return;
 397         else
 398                 done = true;
 399
 400         // FIXME:
 401         // change the ifdef to 'geometry = normalGeometry();' only
 402         // when Trolltech has fixed the broken normalGeometry on X11:
 403         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 404         // Then also the moveEvent, resizeEvent, and the
 405         // code for floatingGeometry_ can be removed;
 406         // adjust GuiView::setGeometry()
 407
 408         QRect normal_geometry;
 409         int maximized;
 410 #ifdef Q_WS_WIN
 411         normal_geometry = normalGeometry();
 412         if (isMaximized()) {
 413                 maximized = CompletelyMaximized;
 414         } else {
 415                 maximized = NotMaximized;
 416         }
 417 #else
 418         normal_geometry = updateFloatingGeometry();
 419
 420         QDesktopWidget& dw = *qApp->desktop();
 421         QRect desk = dw.availableGeometry(dw.primaryScreen());
 422         // Qt bug on Linux: load completely maximized, vert max. save-> frameGeometry().height() is wrong
 423         if (isMaximized() && desk.width() <= frameGeometry().width() && desk.height() <= frameGeometry().height()) {
 424                 maximized = CompletelyMaximized;
 425                 // maximizing does not work when the window is allready hor. or vert. maximized
 426                 // Tested only on KDE
 427                 int dh = frameGeometry().height() - height();
 428                 if (desk.height() <= normal_geometry.height() + dh)
 429                         normal_geometry.setHeight(normal_geometry.height() - 1);
 430                 int dw = frameGeometry().width() - width();
 431                 if (desk.width() <= normal_geometry.width() + dw)
 432                         normal_geometry.setWidth(normal_geometry.width() - 1);
 433         } else if (desk.height() <= frameGeometry().height()) {
 434                 maximized = VerticallyMaximized;
 435         } else if (desk.width() <= frameGeometry().width()) {
 436                 maximized = HorizontallyMaximized;
 437         } else {
 438                 maximized = NotMaximized;
 439         }
 440
 441
 442 #endif
 443         // save windows size and position
 444         Session & session = LyX::ref().session();
 445         session.sessionInfo().save("WindowWidth", convert<string>(normal_geometry.width()));
 446         session.sessionInfo().save("WindowHeight", convert<string>(normal_geometry.height()));
 447         session.sessionInfo().save("WindowMaximized", convert<string>(maximized));
 448         session.sessionInfo().save("IconSizeXY", convert<string>(iconSize().width()));
 449         if (lyxrc.geometry_xysaved) {
 450                 session.sessionInfo().save("WindowPosX", convert<string>(normal_geometry.x() + d.posx_offset));
 451                 session.sessionInfo().save("WindowPosY", convert<string>(normal_geometry.y() + d.posy_offset));
 452         }
 453         d.toolbars_->saveToolbarInfo();
 454 }
 455
 456
 457 void GuiView::setGeometry(unsigned int width,
 458                           unsigned int height,
 459                           int posx, int posy,
 460                           int maximized,
 461                           unsigned int iconSizeXY,
 462                           const string & geometryArg)
 463 {
 464         // use last value (not at startup)
 465         if (d.lastIconSize != 0)
 466                 setIconSize(d.lastIconSize);
 467         else if (iconSizeXY != 0)
 468                 setIconSize(iconSizeXY);
 469         else
 470                 setIconSize(d.normalIconSize);
 471
 472         // only true when the -geometry option was NOT used
 473         if (width != 0 && height != 0) {
 474                 if (posx != -1 && posy != -1) {
 475                         // if there are startup positioning problems:
 476                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 477                         QDesktopWidget& dw = *qApp->desktop();
 478                         if (dw.isVirtualDesktop()) {
 479                                 if(!dw.geometry().contains(posx, posy)) {
 480                                         posx = 50;
 481                                         posy = 50;
 482                                 }
 483                         } else {
 484                                 // Which system doesn't use a virtual desktop?
 485                                 // TODO save also last screen number and check if it is still availabe.
 486                         }
 487 #ifdef Q_WS_WIN
 488                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 489                         QWidget::setGeometry(posx, posy, width, height);
 490 #else
 491                         resize(width, height);
 492                         move(posx, posy);
 493 #endif
 494                 } else {
 495                         resize(width, height);
 496                 }
 497
 498                 // remember original size
 499                 floatingGeometry_ = QRect(posx, posy, width, height);
 500
 501                 if (maximized != NotMaximized) {
 502                         if (maximized == CompletelyMaximized) {
 503                                 setWindowState(Qt::WindowMaximized);
 504                         } else {
 505 #ifndef Q_WS_WIN
 506                                 // TODO How to set by the window manager?
 507                                 //      setWindowState(Qt::WindowVerticallyMaximized);
 508                                 //      is not possible
 509                                 QDesktopWidget& dw = *qApp->desktop();
 510                                 QRect desk = dw.availableGeometry(dw.primaryScreen());
 511                                 if (maximized == VerticallyMaximized)
 512                                         resize(width, desk.height());
 513                                 if (maximized == HorizontallyMaximized)
 514                                         resize(desk.width(), height);
 515 #endif
 516                         }
 517                 }
 518         }
 519         else
 520         {
 521                 // FIXME: move this code into parse_geometry() (LyX.cpp)
 522 #ifdef Q_WS_WIN
 523                 int x, y;
 524                 int w, h;
 525                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 526                 re.indexIn(toqstr(geometryArg.c_str()));
 527                 w = re.cap(1).toInt();
 528                 h = re.cap(2).toInt();
 529                 x = re.cap(3).toInt();
 530                 y = re.cap(4).toInt();
 531                 QWidget::setGeometry( x, y, w, h );
 532 #else
 533                 // silence warning
 534                 (void)geometryArg;
 535 #endif
 536         }
 537
 538         d.setBackground();
 539
 540         show();
 541
 542         // after show geometry() has changed (Qt bug?)
 543         // we compensate the drift when storing the position
 544         d.posx_offset = 0;
 545         d.posy_offset = 0;
 546         if (width != 0 && height != 0)
 547                 if (posx != -1 && posy != -1) {
 548 #ifdef Q_WS_WIN
 549                         d.posx_offset = posx - normalGeometry().x();
 550                         d.posy_offset = posy - normalGeometry().y();
 551 #else
 552 #ifndef Q_WS_MACX
 553                         if (maximized == NotMaximized) {
 554                                 d.posx_offset = posx - geometry().x();
 555                                 d.posy_offset = posy - geometry().y();
 556                         }
 557 #endif
 558 #endif
 559                 }
 560 }
 561
 562
 563 void GuiView::message(docstring const & str)
 564 {
 565         statusBar()->showMessage(toqstr(str));
 566         statusbar_timer_.stop();
 567         statusbar_timer_.start(statusbar_timer_value);
 568 }
 569
 570
 571 void GuiView::clearMessage()
 572 {
 573         update_view_state_qt();
 574 }
 575
 576
 577 void GuiView::setIconSize(unsigned int size)
 578 {
 579         d.lastIconSize = size;
 580         QMainWindow::setIconSize(QSize(size, size));
 581 }
 582
 583
 584 void GuiView::smallSizedIcons()
 585 {
 586         setIconSize(d.smallIconSize);
 587 }
 588
 589
 590 void GuiView::normalSizedIcons()
 591 {
 592         setIconSize(d.normalIconSize);
 593 }
 594
 595
 596 void GuiView::bigSizedIcons()
 597 {
 598         setIconSize(d.bigIconSize);
 599 }
 600
 601
 602 void GuiView::update_view_state_qt()
 603 {
 604         if (!hasFocus())
 605                 return;
 606         theLyXFunc().setLyXView(this);
 607         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 608         statusbar_timer_.stop();
 609 }
 610
 611
 612 void GuiView::updateWindowTitle(GuiWorkArea * wa)
 613 {
 614         if (wa != d.current_work_area_)
 615                 return;
 616         setWindowTitle(qt_("LyX: ") + wa->windowTitle());
 617         setWindowIconText(wa->windowIconText());
 618 }
 619
 620
 621 void GuiView::on_currentWorkAreaChanged(GuiWorkArea * wa)
 622 {
 623         disconnectBuffer();
 624         disconnectBufferView();
 625         connectBufferView(wa->bufferView());
 626         connectBuffer(wa->bufferView().buffer());
 627         d.current_work_area_ = wa;
 628         QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
 629                 this, SLOT(updateWindowTitle(GuiWorkArea *)));
 630         updateWindowTitle(wa);
 631
 632         updateToc();
 633         // Buffer-dependent dialogs should be updated or
 634         // hidden. This should go here because some dialogs (eg ToC)
 635         // require bv_->text.
 636         getDialogs().updateBufferDependent(true);
 637         updateToolbars();
 638         updateLayoutChoice(false);
 639         updateStatusBar();
 640 }
 641
 642
 643 void GuiView::updateStatusBar()
 644 {
 645         // let the user see the explicit message
 646         if (statusbar_timer_.isActive())
 647                 return;
 648
 649         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 650 }
 651
 652
 653 void GuiView::activated(FuncRequest const & func)
 654 {
 655         dispatch(func);
 656 }
 657
 658
 659 bool GuiView::hasFocus() const
 660 {
 661         return qApp->activeWindow() == this;
 662 }
 663
 664
 665 QRect  GuiView::updateFloatingGeometry()
 666 {
 667         QDesktopWidget& dw = *qApp->desktop();
 668         QRect desk = dw.availableGeometry(dw.primaryScreen());
 669         // remember only non-maximized sizes
 670         if (!isMaximized() && desk.width() > frameGeometry().width() && desk.height() > frameGeometry().height()) {
 671                 floatingGeometry_ = QRect(x(), y(), width(), height());
 672         }
 673         return floatingGeometry_;
 674 }
 675
 676
 677 void GuiView::resizeEvent(QResizeEvent *)
 678 {
 679         updateFloatingGeometry();
 680 }
 681
 682
 683 void GuiView::moveEvent(QMoveEvent *)
 684 {
 685         updateFloatingGeometry();
 686 }
 687
 688
 689 bool GuiView::event(QEvent * e)
 690 {
 691         switch (e->type())
 692         {
 693         // Useful debug code:
 694         //case QEvent::ActivationChange:
 695         //case QEvent::WindowDeactivate:
 696         //case QEvent::Paint:
 697         //case QEvent::Enter:
 698         //case QEvent::Leave:
 699         //case QEvent::HoverEnter:
 700         //case QEvent::HoverLeave:
 701         //case QEvent::HoverMove:
 702         //case QEvent::StatusTip:
 703         //case QEvent::DragEnter:
 704         //case QEvent::DragLeave:
 705         //case QEvent::Drop:
 706         //      break;
 707
 708         case QEvent::WindowActivate: {
 709                 theApp()->setCurrentView(*this);
 710                 if (d.current_work_area_) {
 711                         BufferView & bv = d.current_work_area_->bufferView();
 712                         connectBufferView(bv);
 713                         connectBuffer(bv.buffer());
 714                         // The document structure, name and dialogs might have
 715                         // changed in another view.
 716                         getDialogs().updateBufferDependent(true);
 717                 } else {
 718                         setWindowTitle(qt_("LyX"));
 719                         setWindowIconText(qt_("LyX"));
 720                 }
 721                 return QMainWindow::event(e);
 722         }
 723         case QEvent::ShortcutOverride: {
 724                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 725                 if (!d.current_work_area_) {
 726                         theLyXFunc().setLyXView(this);
 727                         KeySymbol sym;
 728                         setKeySymbol(&sym, ke);
 729                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 730                         e->accept();
 731                         return true;
 732                 }
 733                 if (ke->key() == Qt::Key_Tab || ke->key() == Qt::Key_Backtab) {
 734                         KeySymbol sym;
 735                         setKeySymbol(&sym, ke);
 736                         d.current_work_area_->processKeySym(sym, NoModifier);
 737                         e->accept();
 738                         return true;
 739                 }
 740         }
 741         default:
 742                 return QMainWindow::event(e);
 743         }
 744 }
 745
 746
 747 bool GuiView::focusNextPrevChild(bool /*next*/)
 748 {
 749         setFocus();
 750         return true;
 751 }
 752
 753
 754 void GuiView::showView()
 755 {
 756         setWindowTitle(qt_("LyX"));
 757         show();
 758         updateFloatingGeometry();
 759 }
 760
 761
 762 void GuiView::setBusy(bool yes)
 763 {
 764         if (d.current_work_area_) {
 765                 d.current_work_area_->setUpdatesEnabled(!yes);
 766                 if (yes)
 767                         d.current_work_area_->stopBlinkingCursor();
 768                 else
 769                         d.current_work_area_->startBlinkingCursor();
 770         }
 771
 772         if (yes)
 773                 QApplication::setOverrideCursor(Qt::WaitCursor);
 774         else
 775                 QApplication::restoreOverrideCursor();
 776 }
 777
 778
 779 GuiToolbar * GuiView::makeToolbar(ToolbarInfo const & tbinfo, bool newline)
 780 {
 781         GuiToolbar * toolBar = new GuiToolbar(tbinfo, *this);
 782
 783         if (tbinfo.flags & ToolbarInfo::TOP) {
 784                 if (newline)
 785                         addToolBarBreak(Qt::TopToolBarArea);
 786                 addToolBar(Qt::TopToolBarArea, toolBar);
 787         }
 788
 789         if (tbinfo.flags & ToolbarInfo::BOTTOM) {
 790 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 791 #if (QT_VERSION >= 0x040202)
 792                 if (newline)
 793                         addToolBarBreak(Qt::BottomToolBarArea);
 794 #endif
 795                 addToolBar(Qt::BottomToolBarArea, toolBar);
 796         }
 797
 798         if (tbinfo.flags & ToolbarInfo::LEFT) {
 799 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 800 #if (QT_VERSION >= 0x040202)
 801                 if (newline)
 802                         addToolBarBreak(Qt::LeftToolBarArea);
 803 #endif
 804                 addToolBar(Qt::LeftToolBarArea, toolBar);
 805         }
 806
 807         if (tbinfo.flags & ToolbarInfo::RIGHT) {
 808 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 809 #if (QT_VERSION >= 0x040202)
 810                 if (newline)
 811                         addToolBarBreak(Qt::RightToolBarArea);
 812 #endif
 813                 addToolBar(Qt::RightToolBarArea, toolBar);
 814         }
 815
 816         // The following does not work so I cannot restore to exact toolbar location
 817         /*
 818         ToolbarSection::ToolbarInfo & tbinfo = LyX::ref().session().toolbars().load(tbinfo.name);
 819         toolBar->move(tbinfo.posx, tbinfo.posy);
 820         */
 821
 822         return toolBar;
 823 }
 824
 825
 826 WorkArea * GuiView::workArea(Buffer & buffer)
 827 {
 828         for (int i = 0; i != d.splitter_->count(); ++i) {
 829                 GuiWorkArea * wa = d.tabWorkArea(i)->workArea(buffer);
 830                 if (wa)
 831                         return wa;
 832         }
 833         return 0;
 834 }
 835
 836
 837 WorkArea * GuiView::addWorkArea(Buffer & buffer)
 838 {
 839         GuiWorkArea * wa = new GuiWorkArea(buffer, *this);
 840         wa->setUpdatesEnabled(false);
 841
 842         // Automatically create a TabWorkArea if there are none yet.
 843         if (!d.splitter_->count())
 844                 addTabWorkArea();
 845
 846         TabWorkArea * tab_widget = d.currentTabWorkArea();
 847         tab_widget->addTab(wa, wa->windowTitle());
 848         QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
 849                 tab_widget, SLOT(updateTabText(GuiWorkArea *)));
 850
 851         wa->bufferView().updateMetrics();
 852
 853         // Hide tabbar if there's only one tab.
 854         tab_widget->showBar(tab_widget->count() > 1);
 855         return wa;
 856 }
 857
 858
 859 void GuiView::addTabWorkArea()
 860 {
 861         TabWorkArea * twa = new TabWorkArea;
 862         QObject::connect(twa, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
 863                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
 864         d.splitter_->addWidget(twa);
 865         d.stack_widget_->setCurrentWidget(d.splitter_);
 866 }
 867
 868
 869 WorkArea * GuiView::currentWorkArea()
 870 {
 871         return d.current_work_area_;
 872 }
 873
 874
 875 WorkArea const * GuiView::currentWorkArea() const
 876 {
 877         return d.current_work_area_;
 878 }
 879
 880
 881 void GuiView::setCurrentWorkArea(WorkArea * work_area)
 882 {
 883         BOOST_ASSERT(work_area);
 884
 885         // Changing work area can result from opening a file so
 886         // update the toc in any case.
 887         updateToc();
 888
 889         GuiWorkArea * wa = static_cast<GuiWorkArea *>(work_area);
 890         d.current_work_area_ = wa;
 891         for (int i = 0; i != d.splitter_->count(); ++i) {
 892                 if (d.tabWorkArea(i)->setCurrentWorkArea(wa))
 893                         return;
 894         }
 895 }
 896
 897
 898 void GuiView::removeWorkArea(WorkArea * work_area)
 899 {
 900         BOOST_ASSERT(work_area);
 901         GuiWorkArea * gwa = static_cast<GuiWorkArea *>(work_area);
 902         if (gwa == d.current_work_area_) {
 903                 disconnectBuffer();
 904                 disconnectBufferView();
 905                 getDialogs().hideBufferDependent();
 906                 d.current_work_area_ = 0;
 907         }
 908
 909         // removing a work area often results from closing a file so
 910         // update the toc in any case.
 911         updateToc();
 912
 913         for (int i = 0; i != d.splitter_->count(); ++i) {
 914                 TabWorkArea * twa = d.tabWorkArea(i);
 915                 if (!twa->removeWorkArea(gwa))
 916                         // Not found in this tab group.
 917                         continue;
 918
 919                 // We found and removed the WorkArea.
 920                 if (twa->count()) {
 921                         // No more WorkAreas in this tab group, so delete it.
 922                         delete twa;
 923                         break;
 924                 }
 925
 926                 if (d.current_work_area_)
 927                         // This means that we are not closing the current WorkArea;
 928                         break;
 929
 930                 // Switch to the next WorkArea in the found TabWorkArea.
 931                 d.current_work_area_ = twa->currentWorkArea();
 932                 break;
 933         }
 934
 935         if (d.splitter_->count() == 0)
 936                 // No more work area, switch to the background widget.
 937                 d.setBackground();
 938 }
 939
 940
 941 void GuiView::showMiniBuffer(bool visible)
 942 {
 943         d.toolbars_->showCommandBuffer(visible);
 944 }
 945
 946
 947 void GuiView::openMenu(docstring const & name)
 948 {
 949         d.menubar_->openByName(toqstr(name));
 950 }
 951
 952
 953 void GuiView::openLayoutList()
 954 {
 955         d.toolbars_->openLayoutList();
 956 }
 957
 958
 959 void GuiView::updateLayoutChoice(bool force)
 960 {
 961         // Don't show any layouts without a buffer
 962         if (!buffer()) {
 963                 d.toolbars_->clearLayoutList();
 964                 return;
 965         }
 966
 967         // Update the layout display
 968         if (d.toolbars_->updateLayoutList(buffer()->params().getTextClassPtr(), force)) {
 969                 d.current_layout = buffer()->params().getTextClass().defaultLayoutName();
 970         }
 971
 972         docstring const & layout = d.current_work_area_->bufferView().cursor().
 973                 innerParagraph().layout()->name();
 974
 975         if (layout != d.current_layout) {
 976                 d.toolbars_->setLayout(layout);
 977                 d.current_layout = layout;
 978         }
 979 }
 980
 981
 982 bool GuiView::isToolbarVisible(std::string const & id)
 983 {
 984         return d.toolbars_->visible(id);
 985 }
 986
 987 void GuiView::updateToolbars()
 988 {
 989         if (d.current_work_area_) {
 990                 bool const math =
 991                         d.current_work_area_->bufferView().cursor().inMathed();
 992                 bool const table =
 993                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 994                 bool const review =
 995                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
 996                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
 997
 998                 d.toolbars_->update(math, table, review);
 999         } else
1000                 d.toolbars_->update(false, false, false);
1001
1002         // update read-only status of open dialogs.
1003         getDialogs().checkStatus();
1004 }
1005
1006
1007 ToolbarInfo * GuiView::getToolbarInfo(string const & name)
1008 {
1009         return d.toolbars_->getToolbarInfo(name);
1010 }
1011
1012
1013 void GuiView::toggleToolbarState(string const & name, bool allowauto)
1014 {
1015         // it is possible to get current toolbar status like this,...
1016         // but I decide to obey the order of ToolbarBackend::flags
1017         // and disregard real toolbar status.
1018         // toolbars_->saveToolbarInfo();
1019         //
1020         // toggle state on/off/auto
1021         d.toolbars_->toggleToolbarState(name, allowauto);
1022         // update toolbar
1023         updateToolbars();
1024 }
1025
1026
1027 } // namespace frontend
1028 } // namespace lyx
1029
1030 #include "GuiView_moc.cpp"