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 "callback.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 <QTabBar>
  68 #include <QToolBar>
  69 #include <QTabWidget>
  70 #include <QUrl>
  71
  72 using std::endl;
  73 using std::string;
  74 using std::vector;
  75
  76 namespace lyx {
  77
  78 using support::FileName;
  79 using support::libFileSearch;
  80 using support::makeDisplayPath;
  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 class TabWidget : public QTabWidget {
 127 public:
 128         void showBar(bool show) { tabBar()->setVisible(show); }
 129 };
 130
 131
 132 } // namespace anon
 133
 134
 135 struct GuiViewBase::GuiViewPrivate
 136 {
 137         string cur_title;
 138
 139         int posx_offset;
 140         int posy_offset;
 141
 142         TabWidget * tab_widget_;
 143         QStackedWidget * stack_widget_;
 144         BackgroundWidget * bg_widget_;
 145         /// view's menubar
 146         GuiMenubar * menubar_;
 147         /// view's toolbars
 148         GuiToolbars * toolbars_;
 149         ///
 150         docstring current_layout;
 151
 152         GuiViewPrivate() : posx_offset(0), posy_offset(0) {}
 153
 154         unsigned int smallIconSize;
 155         unsigned int normalIconSize;
 156         unsigned int bigIconSize;
 157         // static needed by "New Window"
 158         static unsigned int lastIconSize;
 159
 160         QMenu * toolBarPopup(GuiViewBase * parent)
 161         {
 162                 // FIXME: translation
 163                 QMenu * menu = new QMenu(parent);
 164                 QActionGroup * iconSizeGroup = new QActionGroup(parent);
 165
 166                 QAction * smallIcons = new QAction(iconSizeGroup);
 167                 smallIcons->setText(qt_("Small-sized icons"));
 168                 smallIcons->setCheckable(true);
 169                 QObject::connect(smallIcons, SIGNAL(triggered()), parent, SLOT(smallSizedIcons()));
 170                 menu->addAction(smallIcons);
 171
 172                 QAction * normalIcons = new QAction(iconSizeGroup);
 173                 normalIcons->setText(qt_("Normal-sized icons"));
 174                 normalIcons->setCheckable(true);
 175                 QObject::connect(normalIcons, SIGNAL(triggered()), parent, SLOT(normalSizedIcons()));
 176                 menu->addAction(normalIcons);
 177
 178                 QAction * bigIcons = new QAction(iconSizeGroup);
 179                 bigIcons->setText(qt_("Big-sized icons"));
 180                 bigIcons->setCheckable(true);
 181                 QObject::connect(bigIcons, SIGNAL(triggered()), parent, SLOT(bigSizedIcons()));
 182                 menu->addAction(bigIcons);
 183
 184                 unsigned int cur = parent->iconSize().width();
 185                 if ( cur == parent->d.smallIconSize)
 186                         smallIcons->setChecked(true);
 187                 else if (cur == parent->d.normalIconSize)
 188                         normalIcons->setChecked(true);
 189                 else if (cur == parent->d.bigIconSize)
 190                         bigIcons->setChecked(true);
 191
 192                 return menu;
 193         }
 194
 195         void initBackground()
 196         {
 197                 bg_widget_ = 0;
 198                 LYXERR(Debug::GUI) << "show banner: " << lyxrc.show_banner << endl;
 199                 /// The text to be written on top of the pixmap
 200                 QString const text = lyx_version ? QString(lyx_version) : qt_("unknown version");
 201                 FileName const file = support::libFileSearch("images", "banner", "png");
 202                 if (file.empty())
 203                         return;
 204
 205                 bg_widget_ = new BackgroundWidget(toqstr(file.absFilename()), text);
 206         }
 207
 208         void setBackground()
 209         {
 210                 if (!bg_widget_)
 211                         return;
 212
 213                 stack_widget_->setCurrentWidget(bg_widget_);
 214                 bg_widget_->setUpdatesEnabled(true);
 215         }
 216 };
 217
 218
 219 unsigned int GuiViewBase::GuiViewPrivate::lastIconSize = 0;
 220
 221
 222 GuiViewBase::GuiViewBase(int id)
 223         : QMainWindow(), LyXView(id), quitting_by_menu_(false),
 224           d(*new GuiViewPrivate)
 225 {
 226         // Qt bug? signal lastWindowClosed does not work
 227         setAttribute(Qt::WA_QuitOnClose, false);
 228         setAttribute(Qt::WA_DeleteOnClose, true);
 229
 230         // hardcode here the platform specific icon size
 231         d.smallIconSize = 14;   // scaling problems
 232         d.normalIconSize = 20;  // ok, default
 233         d.bigIconSize = 26;             // better for some math icons
 234
 235 #ifndef Q_WS_MACX
 236         // assign an icon to main form. We do not do it under Qt/Mac,
 237         // since the icon is provided in the application bundle.
 238         FileName const iconname = libFileSearch("images", "lyx", "png");
 239         if (!iconname.empty())
 240                 setWindowIcon(QPixmap(toqstr(iconname.absFilename())));
 241 #endif
 242
 243         d.tab_widget_ = new TabWidget;
 244
 245         QPushButton * closeTabButton = new QPushButton(this);
 246         FileName const file = support::libFileSearch("images", "closetab", "png");
 247         if (!file.empty()) {
 248                 QPixmap pm(toqstr(file.absFilename()));
 249                 closeTabButton->setIcon(QIcon(pm));
 250                 closeTabButton->setMaximumSize(pm.size());
 251                 closeTabButton->setFlat(true);
 252         } else {
 253                 closeTabButton->setText("Close");
 254         }
 255         closeTabButton->setCursor(Qt::ArrowCursor);
 256         closeTabButton->setToolTip(tr("Close tab"));
 257         closeTabButton->setEnabled(true);
 258
 259         QObject::connect(d.tab_widget_, SIGNAL(currentChanged(int)),
 260                         this, SLOT(currentTabChanged(int)));
 261         QObject::connect(closeTabButton, SIGNAL(clicked()),
 262                         this, SLOT(closeCurrentTab()));
 263
 264         d.tab_widget_->setCornerWidget(closeTabButton);
 265 #if QT_VERSION >= 0x040200
 266         d.tab_widget_->setUsesScrollButtons(true);
 267 #endif
 268
 269         d.initBackground();
 270         if (d.bg_widget_) {
 271                 LYXERR(Debug::GUI) << "stack widget!" << endl;
 272                 d.stack_widget_ = new QStackedWidget;
 273                 d.stack_widget_->addWidget(d.bg_widget_);
 274                 d.stack_widget_->addWidget(d.tab_widget_);
 275                 setCentralWidget(d.stack_widget_);
 276         } else {
 277                 d.stack_widget_ = 0;
 278                 setCentralWidget(d.tab_widget_);
 279         }
 280
 281         // For Drag&Drop.
 282         setAcceptDrops(true);
 283 }
 284
 285
 286 GuiViewBase::~GuiViewBase()
 287 {
 288         delete d.menubar_;
 289         delete d.toolbars_;
 290         delete &d;
 291 }
 292
 293
 294 void GuiViewBase::close()
 295 {
 296         quitting_by_menu_ = true;
 297         QMainWindow::close();
 298         quitting_by_menu_ = false;
 299 }
 300
 301
 302 void GuiViewBase::setFocus()
 303 {
 304         if (d.tab_widget_->count())
 305                 d.tab_widget_->currentWidget()->setFocus();
 306 }
 307
 308
 309 QMenu* GuiViewBase::createPopupMenu()
 310 {
 311         return d.toolBarPopup(this);
 312 }
 313
 314
 315 void GuiViewBase::init()
 316 {
 317         // GuiToolbars *must* be initialised before GuiMenubar.
 318         d.toolbars_ = new GuiToolbars(*this);
 319         // FIXME: GuiToolbars::init() cannot be integrated in the ctor
 320         // because LyXFunc::getStatus() needs a properly initialized
 321         // GuiToolbars object (for LFUN_TOOLBAR_TOGGLE).
 322         d.toolbars_->init();
 323         d.menubar_ = new GuiMenubar(this, menubackend);
 324
 325         statusBar()->setSizeGripEnabled(true);
 326
 327         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 328                 this, SLOT(update_view_state_qt()));
 329
 330         if (d.stack_widget_)
 331                 d.stack_widget_->setCurrentWidget(d.bg_widget_);
 332 }
 333
 334
 335 void GuiViewBase::closeEvent(QCloseEvent * close_event)
 336 {
 337         // we may have been called through the close window button
 338         // which bypasses the LFUN machinery.
 339         if (!quitting_by_menu_ && theApp()->gui().viewIds().size() == 1) {
 340                 if (!theBufferList().quitWriteAll()) {
 341                         close_event->ignore();
 342                         return;
 343                 }
 344         }
 345
 346         // Make sure that no LFUN use this close to be closed View.
 347         theLyXFunc().setLyXView(0);
 348         // Make sure the timer time out will not trigger a statusbar update.
 349         statusbar_timer_.stop();
 350
 351         theApp()->gui().unregisterView(id());
 352         if (!theApp()->gui().viewIds().empty()) {
 353                 // Just close the window and do nothing else if this is not the
 354                 // last window.
 355                 close_event->accept();
 356                 return;
 357         }
 358
 359         quitting = true;
 360
 361         // this is the place where we leave the frontend.
 362         // it is the only point at which we start quitting.
 363         saveGeometry();
 364         close_event->accept();
 365         // quit the event loop
 366         qApp->quit();
 367 }
 368
 369
 370 void GuiViewBase::dragEnterEvent(QDragEnterEvent * event)
 371 {
 372         if (event->mimeData()->hasUrls())
 373                 event->accept();
 374         /// \todo Ask lyx-devel is this is enough:
 375         /// if (event->mimeData()->hasFormat("text/plain"))
 376         ///     event->acceptProposedAction();
 377 }
 378
 379
 380 void GuiViewBase::dropEvent(QDropEvent* event)
 381 {
 382         QList<QUrl> files = event->mimeData()->urls();
 383         if (files.isEmpty())
 384                 return;
 385
 386         LYXERR(Debug::GUI) << BOOST_CURRENT_FUNCTION
 387                 << " got URLs!" << endl;
 388         for (int i = 0; i != files.size(); ++i) {
 389                 string const file = support::os::internal_path(fromqstr(
 390                         files.at(i).toLocalFile()));
 391                 if (!file.empty())
 392                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 393         }
 394 }
 395
 396
 397 void GuiViewBase::saveGeometry()
 398 {
 399         static bool done = false;
 400         if (done)
 401                 return;
 402         else
 403                 done = true;
 404
 405         // FIXME:
 406         // change the ifdef to 'geometry = normalGeometry();' only
 407         // when Trolltech has fixed the broken normalGeometry on X11:
 408         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 409         // Then also the moveEvent, resizeEvent, and the
 410         // code for floatingGeometry_ can be removed;
 411         // adjust GuiViewBase::setGeometry()
 412
 413         QRect normal_geometry;
 414         int maximized;
 415 #ifdef Q_WS_WIN
 416         normal_geometry = normalGeometry();
 417         if (isMaximized()) {
 418                 maximized = CompletelyMaximized;
 419         } else {
 420                 maximized = NotMaximized;
 421         }
 422 #else
 423         normal_geometry = updateFloatingGeometry();
 424
 425         QDesktopWidget& dw = *qApp->desktop();
 426         QRect desk = dw.availableGeometry(dw.primaryScreen());
 427         // Qt bug on Linux: load completely maximized, vert max. save-> frameGeometry().height() is wrong
 428         if (isMaximized() && desk.width() <= frameGeometry().width() && desk.height() <= frameGeometry().height()) {
 429                 maximized = CompletelyMaximized;
 430                 // maximizing does not work when the window is allready hor. or vert. maximized
 431                 // Tested only on KDE
 432                 int dh = frameGeometry().height() - height();
 433                 if (desk.height() <= normal_geometry.height() + dh)
 434                         normal_geometry.setHeight(normal_geometry.height() - 1);
 435                 int dw = frameGeometry().width() - width();
 436                 if (desk.width() <= normal_geometry.width() + dw)
 437                         normal_geometry.setWidth(normal_geometry.width() - 1);
 438         } else if (desk.height() <= frameGeometry().height()) {
 439                 maximized = VerticallyMaximized;
 440         } else if (desk.width() <= frameGeometry().width()) {
 441                 maximized = HorizontallyMaximized;
 442         } else {
 443                 maximized = NotMaximized;
 444         }
 445
 446
 447 #endif
 448         // save windows size and position
 449         Session & session = LyX::ref().session();
 450         session.sessionInfo().save("WindowWidth", convert<string>(normal_geometry.width()));
 451         session.sessionInfo().save("WindowHeight", convert<string>(normal_geometry.height()));
 452         session.sessionInfo().save("WindowMaximized", convert<string>(maximized));
 453         session.sessionInfo().save("IconSizeXY", convert<string>(iconSize().width()));
 454         if (lyxrc.geometry_xysaved) {
 455                 session.sessionInfo().save("WindowPosX", convert<string>(normal_geometry.x() + d.posx_offset));
 456                 session.sessionInfo().save("WindowPosY", convert<string>(normal_geometry.y() + d.posy_offset));
 457         }
 458         d.toolbars_->saveToolbarInfo();
 459 }
 460
 461
 462 void GuiViewBase::setGeometry(unsigned int width,
 463                           unsigned int height,
 464                           int posx, int posy,
 465                           int maximized,
 466                           unsigned int iconSizeXY,
 467                           const string & geometryArg)
 468 {
 469         // use last value (not at startup)
 470         if (d.lastIconSize != 0)
 471                 setIconSize(d.lastIconSize);
 472         else if (iconSizeXY != 0)
 473                 setIconSize(iconSizeXY);
 474         else
 475                 setIconSize(d.normalIconSize);
 476
 477         // only true when the -geometry option was NOT used
 478         if (width != 0 && height != 0) {
 479                 if (posx != -1 && posy != -1) {
 480                         // if there are startup positioning problems:
 481                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 482                         QDesktopWidget& dw = *qApp->desktop();
 483                         if (dw.isVirtualDesktop()) {
 484                                 if(!dw.geometry().contains(posx, posy)) {
 485                                         posx = 50;
 486                                         posy = 50;
 487                                 }
 488                         } else {
 489                                 // Which system doesn't use a virtual desktop?
 490                                 // TODO save also last screen number and check if it is still availabe.
 491                         }
 492 #ifdef Q_WS_WIN
 493                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 494                         QWidget::setGeometry(posx, posy, width, height);
 495 #else
 496                         resize(width, height);
 497                         move(posx, posy);
 498 #endif
 499                 } else {
 500                         resize(width, height);
 501                 }
 502
 503                 // remember original size
 504                 floatingGeometry_ = QRect(posx, posy, width, height);
 505
 506                 if (maximized != NotMaximized) {
 507                         if (maximized == CompletelyMaximized) {
 508                                 setWindowState(Qt::WindowMaximized);
 509                         } else {
 510 #ifndef Q_WS_WIN
 511                                 // TODO How to set by the window manager?
 512                                 //      setWindowState(Qt::WindowVerticallyMaximized);
 513                                 //      is not possible
 514                                 QDesktopWidget& dw = *qApp->desktop();
 515                                 QRect desk = dw.availableGeometry(dw.primaryScreen());
 516                                 if (maximized == VerticallyMaximized)
 517                                         resize(width, desk.height());
 518                                 if (maximized == HorizontallyMaximized)
 519                                         resize(desk.width(), height);
 520 #endif
 521                         }
 522                 }
 523         }
 524         else
 525         {
 526                 // FIXME: move this code into parse_geometry() (LyX.cpp)
 527 #ifdef Q_WS_WIN
 528                 int x, y;
 529                 int w, h;
 530                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 531                 re.indexIn(toqstr(geometryArg.c_str()));
 532                 w = re.cap(1).toInt();
 533                 h = re.cap(2).toInt();
 534                 x = re.cap(3).toInt();
 535                 y = re.cap(4).toInt();
 536                 QWidget::setGeometry( x, y, w, h );
 537 #else
 538                 // silence warning
 539                 (void)geometryArg;
 540 #endif
 541         }
 542
 543         d.setBackground();
 544
 545         show();
 546
 547         // For an unknown reason, the Window title update is not effective for
 548         // the second windows up until it is shown on screen (Qt bug?).
 549         updateWindowTitle();
 550
 551         // after show geometry() has changed (Qt bug?)
 552         // we compensate the drift when storing the position
 553         d.posx_offset = 0;
 554         d.posy_offset = 0;
 555         if (width != 0 && height != 0)
 556                 if (posx != -1 && posy != -1) {
 557 #ifdef Q_WS_WIN
 558                         d.posx_offset = posx - normalGeometry().x();
 559                         d.posy_offset = posy - normalGeometry().y();
 560 #else
 561 #ifndef Q_WS_MACX
 562                         if (maximized == NotMaximized) {
 563                                 d.posx_offset = posx - geometry().x();
 564                                 d.posy_offset = posy - geometry().y();
 565                         }
 566 #endif
 567 #endif
 568                 }
 569 }
 570
 571
 572 void GuiViewBase::setWindowTitle(docstring const & t, docstring const & it)
 573 {
 574         QString title = windowTitle();
 575         QString new_title = toqstr(t);
 576         if (title != new_title) {
 577                 QMainWindow::setWindowTitle(new_title);
 578                 QMainWindow::setWindowIconText(toqstr(it));
 579         }
 580 }
 581
 582
 583 void GuiViewBase::message(docstring const & str)
 584 {
 585         statusBar()->showMessage(toqstr(str));
 586         statusbar_timer_.stop();
 587         statusbar_timer_.start(statusbar_timer_value);
 588 }
 589
 590
 591 void GuiViewBase::clearMessage()
 592 {
 593         update_view_state_qt();
 594 }
 595
 596
 597 void GuiViewBase::setIconSize(unsigned int size)
 598 {
 599         d.lastIconSize = size;
 600         QMainWindow::setIconSize(QSize(size, size));
 601 }
 602
 603
 604 void GuiViewBase::smallSizedIcons()
 605 {
 606         setIconSize(d.smallIconSize);
 607 }
 608
 609
 610 void GuiViewBase::normalSizedIcons()
 611 {
 612         setIconSize(d.normalIconSize);
 613 }
 614
 615
 616 void GuiViewBase::bigSizedIcons()
 617 {
 618         setIconSize(d.bigIconSize);
 619 }
 620
 621
 622 void GuiViewBase::update_view_state_qt()
 623 {
 624         if (!hasFocus())
 625                 return;
 626         theLyXFunc().setLyXView(this);
 627         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 628         statusbar_timer_.stop();
 629 }
 630
 631
 632 void GuiViewBase::closeCurrentTab()
 633 {
 634         dispatch(FuncRequest(LFUN_BUFFER_CLOSE));
 635 }
 636
 637
 638 void GuiViewBase::currentTabChanged(int i)
 639 {
 640         disconnectBuffer();
 641         disconnectBufferView();
 642         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 643         BOOST_ASSERT(wa);
 644         BufferView & bv = wa->bufferView();
 645         connectBufferView(bv);
 646         connectBuffer(bv.buffer());
 647         bv.updateMetrics(false);
 648         bv.cursor().fixIfBroken();
 649         wa->setUpdatesEnabled(true);
 650         wa->redraw();
 651         wa->setFocus();
 652
 653         updateToc();
 654         // Buffer-dependent dialogs should be updated or
 655         // hidden. This should go here because some dialogs (eg ToC)
 656         // require bv_->text.
 657         getDialogs().updateBufferDependent(true);
 658         updateToolbars();
 659         updateLayoutChoice();
 660         updateWindowTitle();
 661         updateStatusBar();
 662
 663         LYXERR(Debug::GUI) << "currentTabChanged " << i
 664                 << "File" << bv.buffer().fileName() << endl;
 665 }
 666
 667
 668 void GuiViewBase::updateStatusBar()
 669 {
 670         // let the user see the explicit message
 671         if (statusbar_timer_.isActive())
 672                 return;
 673
 674         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 675 }
 676
 677
 678 void GuiViewBase::activated(FuncRequest const & func)
 679 {
 680         dispatch(func);
 681 }
 682
 683
 684 bool GuiViewBase::hasFocus() const
 685 {
 686         return qApp->activeWindow() == this;
 687 }
 688
 689
 690 QRect  GuiViewBase::updateFloatingGeometry()
 691 {
 692         QDesktopWidget& dw = *qApp->desktop();
 693         QRect desk = dw.availableGeometry(dw.primaryScreen());
 694         // remember only non-maximized sizes
 695         if (!isMaximized() && desk.width() > frameGeometry().width() && desk.height() > frameGeometry().height()) {
 696                 floatingGeometry_ = QRect(x(), y(), width(), height());
 697         }
 698         return floatingGeometry_;
 699 }
 700
 701
 702 void GuiViewBase::resizeEvent(QResizeEvent *)
 703 {
 704         updateFloatingGeometry();
 705 }
 706
 707
 708 void GuiViewBase::moveEvent(QMoveEvent *)
 709 {
 710         updateFloatingGeometry();
 711 }
 712
 713
 714 bool GuiViewBase::event(QEvent * e)
 715 {
 716         switch (e->type())
 717         {
 718         // Useful debug code:
 719         //case QEvent::WindowActivate:
 720         //case QEvent::ActivationChange:
 721         //case QEvent::WindowDeactivate:
 722         //case QEvent::Paint:
 723         //case QEvent::Enter:
 724         //case QEvent::Leave:
 725         //case QEvent::HoverEnter:
 726         //case QEvent::HoverLeave:
 727         //case QEvent::HoverMove:
 728         //case QEvent::StatusTip:
 729         //case QEvent::DragEnter:
 730         //case QEvent::DragLeave:
 731         //case QEvent::Drop:
 732         //      break;
 733
 734         case QEvent::ShortcutOverride: {
 735                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 736                 if (d.tab_widget_->count() == 0) {
 737                         theLyXFunc().setLyXView(this);
 738                         KeySymbol sym;
 739                         setKeySymbol(&sym, ke);
 740                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 741                         e->accept();
 742                         return true;
 743                 }
 744                 if (ke->key() == Qt::Key_Tab || ke->key() == Qt::Key_Backtab) {
 745                         KeySymbol sym;
 746                         setKeySymbol(&sym, ke);
 747                         currentWorkArea()->processKeySym(sym, key_modifier::none);
 748                         e->accept();
 749                         return true;
 750                 }
 751         }
 752         default:
 753                 return QMainWindow::event(e);
 754         }
 755 }
 756
 757
 758 bool GuiViewBase::focusNextPrevChild(bool /*next*/)
 759 {
 760         setFocus();
 761         return true;
 762 }
 763
 764
 765 void GuiViewBase::showView()
 766 {
 767         QMainWindow::setWindowTitle(qt_("LyX"));
 768         QMainWindow::show();
 769         updateFloatingGeometry();
 770 }
 771
 772
 773 void GuiViewBase::busy(bool yes)
 774 {
 775         if (d.tab_widget_->count()) {
 776                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 777                 BOOST_ASSERT(wa);
 778                 wa->setUpdatesEnabled(!yes);
 779                 if (yes)
 780                         wa->stopBlinkingCursor();
 781                 else
 782                         wa->startBlinkingCursor();
 783         }
 784
 785         if (yes)
 786                 QApplication::setOverrideCursor(Qt::WaitCursor);
 787         else
 788                 QApplication::restoreOverrideCursor();
 789 }
 790
 791
 792 GuiToolbar * GuiViewBase::makeToolbar(ToolbarInfo const & tbinfo, bool newline)
 793 {
 794         GuiToolbar * toolBar = new GuiToolbar(tbinfo, *this);
 795
 796         if (tbinfo.flags & ToolbarInfo::TOP) {
 797                 if (newline)
 798                         addToolBarBreak(Qt::TopToolBarArea);
 799                 addToolBar(Qt::TopToolBarArea, toolBar);
 800         }
 801
 802         if (tbinfo.flags & ToolbarInfo::BOTTOM) {
 803 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 804 #if (QT_VERSION >= 0x040202)
 805                 if (newline)
 806                         addToolBarBreak(Qt::BottomToolBarArea);
 807 #endif
 808                 addToolBar(Qt::BottomToolBarArea, toolBar);
 809         }
 810
 811         if (tbinfo.flags & ToolbarInfo::LEFT) {
 812 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 813 #if (QT_VERSION >= 0x040202)
 814                 if (newline)
 815                         addToolBarBreak(Qt::LeftToolBarArea);
 816 #endif
 817                 addToolBar(Qt::LeftToolBarArea, toolBar);
 818         }
 819
 820         if (tbinfo.flags & ToolbarInfo::RIGHT) {
 821 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 822 #if (QT_VERSION >= 0x040202)
 823                 if (newline)
 824                         addToolBarBreak(Qt::RightToolBarArea);
 825 #endif
 826                 addToolBar(Qt::RightToolBarArea, toolBar);
 827         }
 828
 829         // The following does not work so I cannot restore to exact toolbar location
 830         /*
 831         ToolbarSection::ToolbarInfo & tbinfo = LyX::ref().session().toolbars().load(tbinfo.name);
 832         toolBar->move(tbinfo.posx, tbinfo.posy);
 833         */
 834
 835         return toolBar;
 836 }
 837
 838
 839 WorkArea * GuiViewBase::workArea(Buffer & buffer)
 840 {
 841         for (int i = 0; i != d.tab_widget_->count(); ++i) {
 842                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 843                 BOOST_ASSERT(wa);
 844                 if (&wa->bufferView().buffer() == &buffer)
 845                         return wa;
 846         }
 847         return 0;
 848 }
 849
 850
 851 WorkArea * GuiViewBase::addWorkArea(Buffer & buffer)
 852 {
 853         GuiWorkArea * wa = new GuiWorkArea(buffer, *this);
 854         wa->setUpdatesEnabled(false);
 855         d.tab_widget_->addTab(wa, toqstr(makeDisplayPath(buffer.fileName(), 30)));
 856         wa->bufferView().updateMetrics(false);
 857         if (d.stack_widget_)
 858                 d.stack_widget_->setCurrentWidget(d.tab_widget_);
 859         // Hide tabbar if there's only one tab.
 860         d.tab_widget_->showBar(d.tab_widget_->count() > 1);
 861         return wa;
 862 }
 863
 864
 865 WorkArea * GuiViewBase::currentWorkArea()
 866 {
 867         if (d.tab_widget_->count() == 0)
 868                 return 0;
 869         BOOST_ASSERT(dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget()));
 870         return dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 871 }
 872
 873
 874 WorkArea const * GuiViewBase::currentWorkArea() const
 875 {
 876         if (d.tab_widget_->count() == 0)
 877                 return 0;
 878         BOOST_ASSERT(dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget()));
 879         return dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget());
 880 }
 881
 882
 883 void GuiViewBase::setCurrentWorkArea(WorkArea * work_area)
 884 {
 885         BOOST_ASSERT(work_area);
 886
 887         // Changing work area can result from opening a file so
 888         // update the toc in any case.
 889         updateToc();
 890
 891         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(work_area);
 892         BOOST_ASSERT(wa);
 893         if (wa != d.tab_widget_->currentWidget())
 894                 // Switch to the work area.
 895                 d.tab_widget_->setCurrentWidget(wa);
 896         else
 897                 // Make sure the work area is up to date.
 898                 currentTabChanged(d.tab_widget_->currentIndex());
 899         wa->setFocus();
 900 }
 901
 902
 903 void GuiViewBase::removeWorkArea(WorkArea * work_area)
 904 {
 905         BOOST_ASSERT(work_area);
 906         if (work_area == currentWorkArea()) {
 907                 disconnectBuffer();
 908                 disconnectBufferView();
 909         }
 910
 911         // removing a work area often results from closing a file so
 912         // update the toc in any case.
 913         updateToc();
 914
 915         GuiWorkArea * gwa = dynamic_cast<GuiWorkArea *>(work_area);
 916         gwa->setUpdatesEnabled(false);
 917         BOOST_ASSERT(gwa);
 918         int index = d.tab_widget_->indexOf(gwa);
 919         d.tab_widget_->removeTab(index);
 920
 921         delete gwa;
 922
 923         if (d.tab_widget_->count()) {
 924                 // make sure the next work area is enabled.
 925                 d.tab_widget_->currentWidget()->setUpdatesEnabled(true);
 926                 // Hide tabbar if there's only one tab.
 927                 d.tab_widget_->showBar(d.tab_widget_->count() > 1);
 928                 return;
 929         }
 930
 931         getDialogs().hideBufferDependent();
 932         if (d.stack_widget_) {
 933                 // No more work area, switch to the background widget.
 934                 d.setBackground();
 935         }
 936 }
 937
 938
 939 void GuiViewBase::showMiniBuffer(bool visible)
 940 {
 941         d.toolbars_->display("minibuffer", visible);
 942
 943         // FIXME: do something about command buffer focus.
 944 //      if (t)
 945 //              t->focusCommandBuffer();
 946 }
 947
 948
 949 void GuiViewBase::openMenu(docstring const & name)
 950 {
 951         d.menubar_->openByName(toqstr(name));
 952 }
 953
 954
 955 void GuiViewBase::openLayoutList()
 956 {
 957         d.toolbars_->openLayoutList();
 958 }
 959
 960
 961 void GuiViewBase::updateLayoutChoice()
 962 {
 963         // Don't show any layouts without a buffer
 964         if (!buffer()) {
 965                 d.toolbars_->clearLayoutList();
 966                 return;
 967         }
 968
 969         // Update the layout display
 970         if (d.toolbars_->updateLayoutList(buffer()->params().getTextClassPtr())) {
 971                 d.current_layout = buffer()->params().getTextClass().defaultLayoutName();
 972         }
 973
 974         docstring const & layout = currentWorkArea()->bufferView().cursor().
 975                 innerParagraph().layout()->name();
 976
 977         if (layout != d.current_layout) {
 978                 d.toolbars_->setLayout(layout);
 979                 d.current_layout = layout;
 980         }
 981 }
 982
 983
 984 bool GuiViewBase::isToolbarVisible(std::string const & id)
 985 {
 986         return d.toolbars_->visible(id);
 987 }
 988
 989 void GuiViewBase::updateToolbars()
 990 {
 991         WorkArea * wa = currentWorkArea();
 992         if (wa) {
 993                 bool const math =
 994                         wa->bufferView().cursor().inMathed();
 995                 bool const table =
 996                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 997                 bool const review =
 998                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
 999                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
1000
1001                 d.toolbars_->update(math, table, review);
1002         } else
1003                 d.toolbars_->update(false, false, false);
1004
1005         // update read-only status of open dialogs.
1006         getDialogs().checkStatus();
1007 }
1008
1009
1010 ToolbarInfo * GuiViewBase::getToolbarInfo(string const & name)
1011 {
1012         return d.toolbars_->getToolbarInfo(name);
1013 }
1014
1015
1016 void GuiViewBase::toggleToolbarState(string const & name, bool allowauto)
1017 {
1018         // it is possible to get current toolbar status like this,...
1019         // but I decide to obey the order of ToolbarBackend::flags
1020         // and disregard real toolbar status.
1021         // toolbars_->saveToolbarInfo();
1022         //
1023         // toggle state on/off/auto
1024         d.toolbars_->toggleToolbarState(name, allowauto);
1025         // update toolbar
1026         updateToolbars();
1027 }
1028
1029
1030 } // namespace frontend
1031 } // namespace lyx
1032
1033 #include "GuiView_moc.cpp"