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