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 "QKeySymbol.h"
  21 #include "QLMenubar.h"
  22 #include "QLToolbar.h"
  23 #include "QCommandBuffer.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 "BufferView.h"
  38 #include "BufferList.h"
  39 #include "callback.h"
  40 #include "debug.h"
  41 #include "FuncRequest.h"
  42 #include "LyX.h"
  43 #include "LyXFunc.h"
  44 #include "LyXRC.h"
  45 #include "MenuBackend.h"
  46 #include "Session.h"
  47 #include "version.h"
  48
  49 #include <QAction>
  50 #include <QApplication>
  51 #include <QCloseEvent>
  52 #include <QDesktopWidget>
  53 #include <QDragEnterEvent>
  54 #include <QDropEvent>
  55 #include <QList>
  56 #include <QMimeData>
  57 #include <QPainter>
  58 #include <QPixmap>
  59 #include <QPushButton>
  60 #include <QStackedWidget>
  61 #include <QStatusBar>
  62 #include <QToolBar>
  63 #include <QTabWidget>
  64 #include <QUrl>
  65
  66 #include <boost/bind.hpp>
  67 #include <boost/shared_ptr.hpp>
  68 #include <boost/current_function.hpp>
  69
  70 using std::endl;
  71 using std::string;
  72 using std::vector;
  73
  74 namespace lyx {
  75
  76 using support::FileName;
  77 using support::libFileSearch;
  78 using support::makeDisplayPath;
  79
  80 namespace frontend {
  81
  82 namespace {
  83
  84 int const statusbar_timer_value = 3000;
  85
  86 class BackgroundWidget: public QWidget
  87 {
  88 public:
  89         BackgroundWidget(QString const & file, QString const & text)
  90         {
  91                 splash_ = new QPixmap(file);
  92                 if (!splash_) {
  93                         lyxerr << "could not load splash screen: '" << fromqstr(file) << "'" << endl;
  94                         return;
  95                 }
  96
  97                 QPainter pain(splash_);
  98                 pain.setPen(QColor(255, 255, 0));
  99                 QFont font;
 100                 // The font used to display the version info
 101                 font.setStyleHint(QFont::SansSerif);
 102                 font.setWeight(QFont::Bold);
 103                 font.setPointSize(convert<int>(lyxrc.font_sizes[Font::SIZE_LARGE]));
 104                 pain.setFont(font);
 105                 pain.drawText(260, 270, text);
 106         }
 107
 108         void paintEvent(QPaintEvent * ev)
 109         {
 110                 if (!splash_)
 111                         return;
 112
 113                 int x = (width() - splash_->width()) / 2;
 114                 int y = (height() - splash_->height()) / 2;
 115                 QPainter pain(this);
 116                 pain.drawPixmap(x, y, *splash_);
 117         }
 118
 119 private:
 120         QPixmap * splash_;
 121 };
 122
 123
 124 } // namespace anon
 125
 126
 127 struct GuiView::GuiViewPrivate
 128 {
 129         string cur_title;
 130
 131         int posx_offset;
 132         int posy_offset;
 133
 134         QTabWidget * tab_widget_;
 135         QStackedWidget * stack_widget_;
 136         BackgroundWidget * bg_widget_;
 137
 138         GuiViewPrivate() : posx_offset(0), posy_offset(0)
 139         {}
 140
 141         unsigned int smallIconSize;
 142         unsigned int normalIconSize;
 143         unsigned int bigIconSize;
 144         // static needed by "New Window"
 145         static unsigned int lastIconSize;
 146
 147         QMenu* toolBarPopup(GuiView *parent)
 148         {
 149                 // FIXME: translation
 150                 QMenu* menu = new QMenu(parent);
 151                 QActionGroup *iconSizeGroup = new QActionGroup(parent);
 152
 153                 QAction *smallIcons = new QAction(iconSizeGroup);
 154                 smallIcons->setText(qt_("Small-sized icons"));
 155                 smallIcons->setCheckable(true);
 156                 QObject::connect(smallIcons, SIGNAL(triggered()), parent, SLOT(smallSizedIcons()));
 157                 menu->addAction(smallIcons);
 158
 159                 QAction *normalIcons = new QAction(iconSizeGroup);
 160                 normalIcons->setText(qt_("Normal-sized icons"));
 161                 normalIcons->setCheckable(true);
 162                 QObject::connect(normalIcons, SIGNAL(triggered()), parent, SLOT(normalSizedIcons()));
 163                 menu->addAction(normalIcons);
 164
 165                 QAction *bigIcons = new QAction(iconSizeGroup);
 166                 bigIcons->setText(qt_("Big-sized icons"));
 167                 bigIcons->setCheckable(true);
 168                 QObject::connect(bigIcons, SIGNAL(triggered()), parent, SLOT(bigSizedIcons()));
 169                 menu->addAction(bigIcons);
 170
 171                 unsigned int cur = parent->iconSize().width();
 172                 if ( cur == parent->d.smallIconSize)
 173                         smallIcons->setChecked(true);
 174                 else if (cur == parent->d.normalIconSize)
 175                         normalIcons->setChecked(true);
 176                 else if (cur == parent->d.bigIconSize)
 177                         bigIcons->setChecked(true);
 178
 179                 return menu;
 180         }
 181
 182         void initBackground()
 183         {
 184                 bg_widget_ = 0;
 185                 LYXERR(Debug::GUI) << "show banner: " << lyxrc.show_banner << endl;
 186                 /// The text to be written on top of the pixmap
 187                 QString const text = lyx_version ? QString(lyx_version) : qt_("unknown version");
 188                 FileName const file = support::libFileSearch("images", "banner", "png");
 189                 if (file.empty())
 190                         return;
 191
 192                 bg_widget_ = new BackgroundWidget(toqstr(file.absFilename()), text);
 193         }
 194
 195         void setBackground()
 196         {
 197                 if (!bg_widget_)
 198                         return;
 199
 200                 stack_widget_->setCurrentWidget(bg_widget_);
 201                 bg_widget_->setUpdatesEnabled(true);
 202         }
 203 };
 204
 205
 206 unsigned int GuiView::GuiViewPrivate::lastIconSize = 0;
 207
 208
 209 GuiView::GuiView(int id)
 210         : QMainWindow(), LyXView(id), commandbuffer_(0), quitting_by_menu_(false),
 211           d(*new GuiViewPrivate)
 212 {
 213         // Qt bug? signal lastWindowClosed does not work
 214         setAttribute(Qt::WA_QuitOnClose, false);
 215         setAttribute(Qt::WA_DeleteOnClose, true);
 216
 217         // hardcode here the platform specific icon size
 218         d.smallIconSize = 14;   // scaling problems
 219         d.normalIconSize = 20;  // ok, default
 220         d.bigIconSize = 26;             // better for some math icons
 221
 222 #ifndef Q_WS_MACX
 223         //  assign an icon to main form. We do not do it under Qt/Mac,
 224         //  since the icon is provided in the application bundle.
 225         FileName const iconname = libFileSearch("images", "lyx", "xpm");
 226         if (!iconname.empty())
 227                 setWindowIcon(QPixmap(toqstr(iconname.absFilename())));
 228 #endif
 229
 230         d.tab_widget_ = new QTabWidget;
 231
 232         QPushButton * closeTabButton = new QPushButton(this);
 233         FileName const file = support::libFileSearch("images", "closetab", "xpm");
 234         if (!file.empty()) {
 235                 QPixmap pm(toqstr(file.absFilename()));
 236                 closeTabButton->setIcon(QIcon(pm));
 237                 closeTabButton->setMaximumSize(pm.size());
 238                 closeTabButton->setFlat(true);
 239         } else {
 240                 closeTabButton->setText("Close");
 241         }
 242         closeTabButton->setCursor(Qt::ArrowCursor);
 243         closeTabButton->setToolTip(tr("Close tab"));
 244         closeTabButton->setEnabled(true);
 245
 246         QObject::connect(d.tab_widget_, SIGNAL(currentChanged(int)),
 247                         this, SLOT(currentTabChanged(int)));
 248         QObject::connect(closeTabButton, SIGNAL(clicked()),
 249                         this, SLOT(closeCurrentTab()));
 250
 251         d.tab_widget_->setCornerWidget(closeTabButton);
 252 #if QT_VERSION >= 0x040200
 253         d.tab_widget_->setUsesScrollButtons(true);
 254 #endif
 255
 256         d.initBackground();
 257         if (d.bg_widget_) {
 258                 lyxerr << "stack widget!" << endl;
 259                 d.stack_widget_ = new QStackedWidget;
 260                 d.stack_widget_->addWidget(d.bg_widget_);
 261                 d.stack_widget_->addWidget(d.tab_widget_);
 262                 setCentralWidget(d.stack_widget_);
 263         } else {
 264                 d.stack_widget_ = 0;
 265                 setCentralWidget(d.tab_widget_);
 266         }
 267
 268         // For Drag&Drop.
 269         setAcceptDrops(true);
 270 }
 271
 272
 273 GuiView::~GuiView()
 274 {
 275         menubar_.reset();
 276         delete &d;
 277 }
 278
 279
 280 void GuiView::close()
 281 {
 282         quitting_by_menu_ = true;
 283         QMainWindow::close();
 284         quitting_by_menu_ = false;
 285 }
 286
 287
 288 void GuiView::setFocus()
 289 {
 290         if (d.tab_widget_->count())
 291                 d.tab_widget_->currentWidget()->setFocus();
 292 }
 293
 294
 295 QMenu* GuiView::createPopupMenu()
 296 {
 297         return d.toolBarPopup(this);
 298 }
 299
 300
 301 void GuiView::init()
 302 {
 303         menubar_.reset(new QLMenubar(this, menubackend));
 304         QObject::connect(menuBar(), SIGNAL(triggered(QAction *)),
 305                 this, SLOT(updateMenu(QAction *)));
 306
 307         getToolbars().init();
 308
 309         statusBar()->setSizeGripEnabled(true);
 310
 311         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 312                 this, SLOT(update_view_state_qt()));
 313
 314         if (d.stack_widget_)
 315                 d.stack_widget_->setCurrentWidget(d.bg_widget_);
 316 }
 317
 318
 319 void GuiView::closeEvent(QCloseEvent * close_event)
 320 {
 321         // we may have been called through the close window button
 322         // which bypasses the LFUN machinery.
 323         if (!quitting_by_menu_ && theApp()->gui().viewIds().size() == 1) {
 324                 if (!theBufferList().quitWriteAll()) {
 325                         close_event->ignore();
 326                         return;
 327                 }
 328         }
 329
 330         // Make sure that no LFUN use this close to be closed View.
 331         theLyXFunc().setLyXView(0);
 332         // Make sure the timer time out will not trigger a statusbar update.
 333         statusbar_timer_.stop();
 334
 335         theApp()->gui().unregisterView(id());
 336         if (!theApp()->gui().viewIds().empty()) {
 337                 // Just close the window and do nothing else if this is not the
 338                 // last window.
 339                 close_event->accept();
 340                 return;
 341         }
 342
 343         quitting = true;
 344
 345         // this is the place where we leave the frontend.
 346         // it is the only point at which we start quitting.
 347         saveGeometry();
 348         close_event->accept();
 349         // quit the event loop
 350         qApp->quit();
 351 }
 352
 353
 354 void GuiView::dragEnterEvent(QDragEnterEvent * event)
 355 {
 356         if (event->mimeData()->hasUrls())
 357                 event->accept();
 358         /// \todo Ask lyx-devel is this is enough:
 359         /// if (event->mimeData()->hasFormat("text/plain"))
 360         ///     event->acceptProposedAction();
 361 }
 362
 363
 364 void GuiView::dropEvent(QDropEvent* event)
 365 {
 366         QList<QUrl> files = event->mimeData()->urls();
 367         if (files.isEmpty())
 368                 return;
 369
 370         LYXERR(Debug::GUI) << BOOST_CURRENT_FUNCTION
 371                 << " got URLs!" << endl;
 372         for (int i = 0; i!=files.size(); ++i) {
 373                 string const file = support::os::internal_path(fromqstr(
 374                         files.at(i).toLocalFile()));
 375                 if (!file.empty())
 376                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 377         }
 378 }
 379
 380
 381 void GuiView::saveGeometry()
 382 {
 383         static bool done = false;
 384         if (done)
 385                 return;
 386         else
 387                 done = true;
 388
 389         // FIXME:
 390         // change the ifdef to 'geometry = normalGeometry();' only
 391         // when Trolltech has fixed the broken normalGeometry on X11:
 392         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 393         // Then also the moveEvent, resizeEvent, and the
 394         // code for floatingGeometry_ can be removed;
 395         // adjust GuiView::setGeometry()
 396
 397         QRect normal_geometry;
 398         int maximized;
 399 #ifdef Q_WS_WIN
 400         normal_geometry = normalGeometry();
 401         if (isMaximized()) {
 402                 maximized = CompletelyMaximized;
 403         } else {
 404                 maximized = NotMaximized;
 405         }
 406 #else
 407         normal_geometry = updateFloatingGeometry();
 408
 409         QDesktopWidget& dw = *qApp->desktop();
 410         QRect desk = dw.availableGeometry(dw.primaryScreen());
 411         // Qt bug on Linux: load completely maximized, vert max. save-> frameGeometry().height() is wrong
 412         if (isMaximized() && desk.width() <= frameGeometry().width() && desk.height() <= frameGeometry().height()) {
 413                 maximized = CompletelyMaximized;
 414                 // maximizing does not work when the window is allready hor. or vert. maximized
 415                 // Tested only on KDE
 416                 int dh = frameGeometry().height() - height();
 417                 if (desk.height() <= normal_geometry.height() + dh)
 418                         normal_geometry.setHeight(normal_geometry.height() - 1);
 419                 int dw = frameGeometry().width() - width();
 420                 if (desk.width() <= normal_geometry.width() + dw)
 421                         normal_geometry.setWidth(normal_geometry.width() - 1);
 422         } else if (desk.height() <= frameGeometry().height()) {
 423                 maximized = VerticallyMaximized;
 424         } else if (desk.width() <= frameGeometry().width()) {
 425                 maximized = HorizontallyMaximized;
 426         } else {
 427                 maximized = NotMaximized;
 428         }
 429
 430
 431 #endif
 432         // save windows size and position
 433         Session & session = LyX::ref().session();
 434         session.sessionInfo().save("WindowWidth", convert<string>(normal_geometry.width()));
 435         session.sessionInfo().save("WindowHeight", convert<string>(normal_geometry.height()));
 436         session.sessionInfo().save("WindowMaximized", convert<string>(maximized));
 437         session.sessionInfo().save("IconSizeXY", convert<string>(iconSize().width()));
 438         if (lyxrc.geometry_xysaved) {
 439                 session.sessionInfo().save("WindowPosX", convert<string>(normal_geometry.x() + d.posx_offset));
 440                 session.sessionInfo().save("WindowPosY", convert<string>(normal_geometry.y() + d.posy_offset));
 441         }
 442         getToolbars().saveToolbarInfo();
 443 }
 444
 445
 446 void GuiView::setGeometry(unsigned int width,
 447                           unsigned int height,
 448                           int posx, int posy,
 449                           int maximized,
 450                           unsigned int iconSizeXY,
 451                           const string & geometryArg)
 452 {
 453         // use last value (not at startup)
 454         if (d.lastIconSize != 0)
 455                 setIconSize(d.lastIconSize);
 456         else if (iconSizeXY != 0)
 457                 setIconSize(iconSizeXY);
 458         else
 459                 setIconSize(d.normalIconSize);
 460
 461         // only true when the -geometry option was NOT used
 462         if (width != 0 && height != 0) {
 463                 if (posx != -1 && posy != -1) {
 464                         // if there are startup positioning problems:
 465                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 466                         QDesktopWidget& dw = *qApp->desktop();
 467                         if (dw.isVirtualDesktop()) {
 468                                 if(!dw.geometry().contains(posx, posy)) {
 469                                         posx = 50;
 470                                         posy = 50;
 471                                 }
 472                         } else {
 473                                 // Which system doesn't use a virtual desktop?
 474                                 // TODO save also last screen number and check if it is still availabe.
 475                         }
 476 #ifdef Q_WS_WIN
 477                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 478                         QWidget::setGeometry(posx, posy, width, height);
 479 #else
 480                         resize(width, height);
 481                         move(posx, posy);
 482 #endif
 483                 } else {
 484                         resize(width, height);
 485                 }
 486
 487                 // remember original size
 488                 floatingGeometry_ = QRect(posx, posy, width, height);
 489
 490                 if (maximized != NotMaximized) {
 491                         if (maximized == CompletelyMaximized) {
 492                                 setWindowState(Qt::WindowMaximized);
 493                         } else {
 494 #ifndef Q_WS_WIN
 495                                 // TODO How to set by the window manager?
 496                                 //      setWindowState(Qt::WindowVerticallyMaximized);
 497                                 //      is not possible
 498                                 QDesktopWidget& dw = *qApp->desktop();
 499                                 QRect desk = dw.availableGeometry(dw.primaryScreen());
 500                                 if (maximized == VerticallyMaximized)
 501                                         resize(width, desk.height());
 502                                 if (maximized == HorizontallyMaximized)
 503                                         resize(desk.width(), height);
 504 #endif
 505                         }
 506                 }
 507         }
 508         else
 509         {
 510                 // FIXME: move this code into parse_geometry() (LyX.cpp)
 511 #ifdef Q_WS_WIN
 512                 int x, y;
 513                 int w, h;
 514                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 515                 re.indexIn(toqstr(geometryArg.c_str()));
 516                 w = re.cap(1).toInt();
 517                 h = re.cap(2).toInt();
 518                 x = re.cap(3).toInt();
 519                 y = re.cap(4).toInt();
 520                 QWidget::setGeometry( x, y, w, h );
 521 #else
 522                 // silence warning
 523                 (void)geometryArg;
 524 #endif
 525         }
 526
 527         d.setBackground();
 528
 529         show();
 530
 531         // For an unknown reason, the Window title update is not effective for
 532         // the second windows up until it is shown on screen (Qt bug?).
 533         updateWindowTitle();
 534
 535         // after show geometry() has changed (Qt bug?)
 536         // we compensate the drift when storing the position
 537         d.posx_offset = 0;
 538         d.posy_offset = 0;
 539         if (width != 0 && height != 0)
 540                 if (posx != -1 && posy != -1) {
 541 #ifdef Q_WS_WIN
 542                         d.posx_offset = posx - normalGeometry().x();
 543                         d.posy_offset = posy - normalGeometry().y();
 544 #else
 545 #ifndef Q_WS_MACX
 546                         if (maximized == NotMaximized) {
 547                                 d.posx_offset = posx - geometry().x();
 548                                 d.posy_offset = posy - geometry().y();
 549                         }
 550 #endif
 551 #endif
 552                 }
 553 }
 554
 555
 556 void GuiView::updateMenu(QAction * /*action*/)
 557 {
 558         menubar_->update();
 559 }
 560
 561
 562 void GuiView::setWindowTitle(docstring const & t, docstring const & it)
 563 {
 564         QString title = windowTitle();
 565         QString new_title = toqstr(t);
 566         if (title != new_title) {
 567                 QMainWindow::setWindowTitle(new_title);
 568                 QMainWindow::setWindowIconText(toqstr(it));
 569         }
 570 }
 571
 572
 573 void GuiView::addCommandBuffer(QToolBar * toolbar)
 574 {
 575         commandbuffer_ = new QCommandBuffer(this, *controlcommand_);
 576         focus_command_buffer.connect(boost::bind(&GuiView::focus_command_widget, this));
 577         toolbar->addWidget(commandbuffer_);
 578 }
 579
 580
 581 void GuiView::message(docstring const & str)
 582 {
 583         statusBar()->showMessage(toqstr(str));
 584         statusbar_timer_.stop();
 585         statusbar_timer_.start(statusbar_timer_value);
 586 }
 587
 588
 589 void GuiView::clearMessage()
 590 {
 591         update_view_state_qt();
 592 }
 593
 594
 595 void GuiView::setIconSize(unsigned int size)
 596 {
 597         d.lastIconSize = size;
 598         QMainWindow::setIconSize(QSize(size, size));
 599 }
 600
 601
 602 void GuiView::smallSizedIcons()
 603 {
 604         setIconSize(d.smallIconSize);
 605 }
 606
 607
 608 void GuiView::normalSizedIcons()
 609 {
 610         setIconSize(d.normalIconSize);
 611 }
 612
 613
 614 void GuiView::bigSizedIcons()
 615 {
 616         setIconSize(d.bigIconSize);
 617 }
 618
 619
 620 void GuiView::focus_command_widget()
 621 {
 622         if (commandbuffer_)
 623                 commandbuffer_->focus_command();
 624 }
 625
 626
 627 void GuiView::update_view_state_qt()
 628 {
 629         if (!hasFocus())
 630                 return;
 631         theLyXFunc().setLyXView(this);
 632         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 633         statusbar_timer_.stop();
 634 }
 635
 636
 637 void GuiView::closeCurrentTab()
 638 {
 639         dispatch(FuncRequest(LFUN_BUFFER_CLOSE));
 640 }
 641
 642
 643 void GuiView::currentTabChanged(int i)
 644 {
 645         disconnectBuffer();
 646         disconnectBufferView();
 647         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 648         BOOST_ASSERT(wa);
 649         BufferView & bv = wa->bufferView();
 650         connectBufferView(bv);
 651         connectBuffer(bv.buffer());
 652         bv.updateMetrics(false);
 653         bv.cursor().fixIfBroken();
 654         wa->setUpdatesEnabled(true);
 655         wa->redraw();
 656         wa->setFocus();
 657
 658         updateToc();
 659         // Buffer-dependent dialogs should be updated or
 660         // hidden. This should go here because some dialogs (eg ToC)
 661         // require bv_->text.
 662         getDialogs().updateBufferDependent(true);
 663         updateMenubar();
 664         updateToolbars();
 665         updateLayoutChoice();
 666         updateWindowTitle();
 667         updateStatusBar();
 668
 669         lyxerr << "currentTabChanged " << i
 670                 << "File" << bv.buffer().fileName() << endl;
 671 }
 672
 673
 674 void GuiView::updateStatusBar()
 675 {
 676         // let the user see the explicit message
 677         if (statusbar_timer_.isActive())
 678                 return;
 679
 680         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 681 }
 682
 683
 684 void GuiView::activated(FuncRequest const & func)
 685 {
 686         dispatch(func);
 687 }
 688
 689
 690 bool GuiView::hasFocus() const
 691 {
 692         return qApp->activeWindow() == this;
 693 }
 694
 695
 696 QRect  GuiView::updateFloatingGeometry()
 697 {
 698         QDesktopWidget& dw = *qApp->desktop();
 699         QRect desk = dw.availableGeometry(dw.primaryScreen());
 700         // remember only non-maximized sizes
 701         if (!isMaximized() && desk.width() > frameGeometry().width() && desk.height() > frameGeometry().height()) {
 702                 floatingGeometry_ = QRect(x(), y(), width(), height());
 703         }
 704         return floatingGeometry_;
 705 }
 706
 707
 708 void GuiView::resizeEvent(QResizeEvent *)
 709 {
 710         updateFloatingGeometry();
 711 }
 712
 713
 714 void GuiView::moveEvent(QMoveEvent *)
 715 {
 716         updateFloatingGeometry();
 717 }
 718
 719
 720 bool GuiView::event(QEvent * e)
 721 {
 722         switch (e->type())
 723         {
 724         // Useful debug code:
 725         //case QEvent::WindowActivate:
 726         //case QEvent::ActivationChange:
 727         //case QEvent::WindowDeactivate:
 728         //case QEvent::Paint:
 729         //case QEvent::Enter:
 730         //case QEvent::Leave:
 731         //case QEvent::HoverEnter:
 732         //case QEvent::HoverLeave:
 733         //case QEvent::HoverMove:
 734         //case QEvent::StatusTip:
 735         //case QEvent::DragEnter:
 736         //case QEvent::DragLeave:
 737         //case QEvent::Drop:
 738         //      break;
 739
 740         case QEvent::ShortcutOverride: {
 741                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 742                 if (d.tab_widget_->count() == 0) {
 743                         theLyXFunc().setLyXView(this);
 744                         boost::shared_ptr<QKeySymbol> sym(new QKeySymbol);
 745                         sym->set(ke);
 746                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 747                         e->accept();
 748                         return true;
 749                 }
 750                 if (ke->key() == Qt::Key_Tab || ke->key() == Qt::Key_Backtab) {
 751                         boost::shared_ptr<QKeySymbol> sym(new QKeySymbol);
 752                         sym->set(ke);
 753                         currentWorkArea()->processKeySym(sym, key_modifier::none);
 754                         e->accept();
 755                         return true;
 756                 }
 757         }
 758         default:
 759                 return QMainWindow::event(e);
 760         }
 761 }
 762
 763
 764 bool GuiView::focusNextPrevChild(bool /*next*/)
 765 {
 766         setFocus();
 767         return true;
 768 }
 769
 770
 771 void GuiView::show()
 772 {
 773         QMainWindow::setWindowTitle(qt_("LyX"));
 774         QMainWindow::show();
 775         updateFloatingGeometry();
 776 }
 777
 778
 779 void GuiView::busy(bool yes)
 780 {
 781         if (d.tab_widget_->count()) {
 782                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 783                 BOOST_ASSERT(wa);
 784                 wa->setUpdatesEnabled(!yes);
 785                 if (yes)
 786                         wa->stopBlinkingCursor();
 787                 else
 788                         wa->startBlinkingCursor();
 789         }
 790
 791         if (yes)
 792                 QApplication::setOverrideCursor(Qt::WaitCursor);
 793         else
 794                 QApplication::restoreOverrideCursor();
 795 }
 796
 797
 798 Toolbars::ToolbarPtr GuiView::makeToolbar(ToolbarInfo const & tbinfo, bool newline)
 799 {
 800         QLToolbar * Tb = new QLToolbar(tbinfo, *this);
 801
 802         if (tbinfo.flags & ToolbarInfo::TOP) {
 803                 if (newline)
 804                         addToolBarBreak(Qt::TopToolBarArea);
 805                 addToolBar(Qt::TopToolBarArea, Tb);
 806         }
 807
 808         if (tbinfo.flags & ToolbarInfo::BOTTOM) {
 809 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 810 #if (QT_VERSION >= 0x040202)
 811                 if (newline)
 812                         addToolBarBreak(Qt::BottomToolBarArea);
 813 #endif
 814                 addToolBar(Qt::BottomToolBarArea, Tb);
 815         }
 816
 817         if (tbinfo.flags & ToolbarInfo::LEFT) {
 818 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 819 #if (QT_VERSION >= 0x040202)
 820                 if (newline)
 821                         addToolBarBreak(Qt::LeftToolBarArea);
 822 #endif
 823                 addToolBar(Qt::LeftToolBarArea, Tb);
 824         }
 825
 826         if (tbinfo.flags & ToolbarInfo::RIGHT) {
 827 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 828 #if (QT_VERSION >= 0x040202)
 829                 if (newline)
 830                         addToolBarBreak(Qt::RightToolBarArea);
 831 #endif
 832                 addToolBar(Qt::RightToolBarArea, Tb);
 833         }
 834
 835         // The following does not work so I cannot restore to exact toolbar location
 836         /*
 837         ToolbarSection::ToolbarInfo & tbinfo = LyX::ref().session().toolbars().load(tbinfo.name);
 838         Tb->move(tbinfo.posx, tbinfo.posy);
 839         */
 840
 841         return Toolbars::ToolbarPtr(Tb);
 842 }
 843
 844
 845 WorkArea * GuiView::workArea(Buffer & buffer)
 846 {
 847         for (int i = 0; i != d.tab_widget_->count(); ++i) {
 848                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 849                 BOOST_ASSERT(wa);
 850                 if (&wa->bufferView().buffer() == &buffer)
 851                         return wa;
 852         }
 853         return 0;
 854 }
 855
 856
 857 WorkArea * GuiView::addWorkArea(Buffer & buffer)
 858 {
 859         GuiWorkArea * wa = new GuiWorkArea(buffer, *this);
 860         d.tab_widget_->addTab(wa, toqstr(makeDisplayPath(buffer.fileName(), 30)));
 861         wa->bufferView().updateMetrics(false);
 862         if (d.stack_widget_)
 863                 d.stack_widget_->setCurrentWidget(d.tab_widget_);
 864         return wa;
 865 }
 866
 867
 868 WorkArea * GuiView::currentWorkArea()
 869 {
 870         if (d.tab_widget_->count() == 0)
 871                 return 0;
 872         BOOST_ASSERT(dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget()));
 873         return dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 874 }
 875
 876
 877 WorkArea const * GuiView::currentWorkArea() const
 878 {
 879         if (d.tab_widget_->count() == 0)
 880                 return 0;
 881         BOOST_ASSERT(dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget()));
 882         return dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget());
 883 }
 884
 885
 886 void GuiView::setCurrentWorkArea(WorkArea * work_area)
 887 {
 888         BOOST_ASSERT(work_area);
 889
 890         // Changing work area can result from opening a file so
 891         // update the toc in any case.
 892         updateToc();
 893
 894         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(work_area);
 895         BOOST_ASSERT(wa);
 896         if (wa != d.tab_widget_->currentWidget())
 897                 // Switch to the work area.
 898                 d.tab_widget_->setCurrentWidget(wa);
 899         else
 900                 // Make sure the work area is up to date.
 901                 currentTabChanged(d.tab_widget_->currentIndex());
 902         wa->setFocus();
 903 }
 904
 905
 906 void GuiView::removeWorkArea(WorkArea * work_area)
 907 {
 908         BOOST_ASSERT(work_area);
 909         if (work_area == currentWorkArea()) {
 910                 disconnectBuffer();
 911                 disconnectBufferView();
 912         }
 913
 914         // removing a work area often results from closing a file so
 915         // update the toc in any case.
 916         updateToc();
 917
 918         GuiWorkArea * gwa = dynamic_cast<GuiWorkArea *>(work_area);
 919         BOOST_ASSERT(gwa);
 920         int index = d.tab_widget_->indexOf(gwa);
 921         d.tab_widget_->removeTab(index);
 922
 923         delete gwa;
 924
 925         if (d.tab_widget_->count()) {
 926                 // make sure the next work area is enabled.
 927                 d.tab_widget_->currentWidget()->setUpdatesEnabled(true);
 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 } // namespace frontend
 940 } // namespace lyx
 941
 942 #include "GuiView_moc.cpp"