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
  69 using std::endl;
  70 using std::string;
  71 using std::vector;
  72
  73 namespace lyx {
  74
  75 using support::FileName;
  76 using support::libFileSearch;
  77 using support::makeDisplayPath;
  78
  79 namespace frontend {
  80
  81 namespace {
  82
  83 int const statusbar_timer_value = 3000;
  84
  85 class BackgroundWidget: public QWidget
  86 {
  87 public:
  88         BackgroundWidget(QString const & file, QString const & text)
  89         {
  90                 splash_ = new QPixmap(file);
  91                 if (!splash_) {
  92                         lyxerr << "could not load splash screen: '" << fromqstr(file) << "'" << endl;
  93                         return;
  94                 }
  95
  96                 QPainter pain(splash_);
  97                 pain.setPen(QColor(255, 255, 0));
  98                 QFont font;
  99                 // The font used to display the version info
 100                 font.setStyleHint(QFont::SansSerif);
 101                 font.setWeight(QFont::Bold);
 102                 font.setPointSize(convert<int>(lyxrc.font_sizes[Font::SIZE_LARGE]));
 103                 pain.setFont(font);
 104                 pain.drawText(260, 270, text);
 105         }
 106
 107         void paintEvent(QPaintEvent * ev)
 108         {
 109                 if (!splash_)
 110                         return;
 111
 112                 int x = (width() - splash_->width()) / 2;
 113                 int y = (height() - splash_->height()) / 2;
 114                 QPainter pain(this);
 115                 pain.drawPixmap(x, y, *splash_);
 116         }
 117
 118 private:
 119         QPixmap * splash_;
 120 };
 121
 122
 123 } // namespace anon
 124
 125
 126 struct GuiView::GuiViewPrivate
 127 {
 128         string cur_title;
 129
 130         int posx_offset;
 131         int posy_offset;
 132
 133         QTabWidget * tab_widget_;
 134         QStackedWidget * stack_widget_;
 135         BackgroundWidget * bg_widget_;
 136
 137         GuiViewPrivate() : posx_offset(0), posy_offset(0)
 138         {}
 139
 140         unsigned int smallIconSize;
 141         unsigned int normalIconSize;
 142         unsigned int bigIconSize;
 143         // static needed by "New Window"
 144         static unsigned int lastIconSize;
 145
 146         QMenu* toolBarPopup(GuiView *parent)
 147         {
 148                 // FIXME: translation
 149                 QMenu* menu = new QMenu(parent);
 150                 QActionGroup *iconSizeGroup = new QActionGroup(parent);
 151
 152                 QAction *smallIcons = new QAction(iconSizeGroup);
 153                 smallIcons->setText(qt_("Small-sized icons"));
 154                 smallIcons->setCheckable(true);
 155                 QObject::connect(smallIcons, SIGNAL(triggered()), parent, SLOT(smallSizedIcons()));
 156                 menu->addAction(smallIcons);
 157
 158                 QAction *normalIcons = new QAction(iconSizeGroup);
 159                 normalIcons->setText(qt_("Normal-sized icons"));
 160                 normalIcons->setCheckable(true);
 161                 QObject::connect(normalIcons, SIGNAL(triggered()), parent, SLOT(normalSizedIcons()));
 162                 menu->addAction(normalIcons);
 163
 164                 QAction *bigIcons = new QAction(iconSizeGroup);
 165                 bigIcons->setText(qt_("Big-sized icons"));
 166                 bigIcons->setCheckable(true);
 167                 QObject::connect(bigIcons, SIGNAL(triggered()), parent, SLOT(bigSizedIcons()));
 168                 menu->addAction(bigIcons);
 169
 170                 unsigned int cur = parent->iconSize().width();
 171                 if ( cur == parent->d.smallIconSize)
 172                         smallIcons->setChecked(true);
 173                 else if (cur == parent->d.normalIconSize)
 174                         normalIcons->setChecked(true);
 175                 else if (cur == parent->d.bigIconSize)
 176                         bigIcons->setChecked(true);
 177
 178                 return menu;
 179         }
 180
 181         void initBackground()
 182         {
 183                 bg_widget_ = 0;
 184                 LYXERR(Debug::GUI) << "show banner: " << lyxrc.show_banner << endl;
 185                 /// The text to be written on top of the pixmap
 186                 QString const text = lyx_version ? QString(lyx_version) : qt_("unknown version");
 187                 FileName const file = support::libFileSearch("images", "banner", "png");
 188                 if (file.empty())
 189                         return;
 190
 191                 bg_widget_ = new BackgroundWidget(toqstr(file.absFilename()), text);
 192         }
 193
 194         void setBackground()
 195         {
 196                 if (!bg_widget_)
 197                         return;
 198
 199                 stack_widget_->setCurrentWidget(bg_widget_);
 200                 bg_widget_->setUpdatesEnabled(true);
 201         }
 202 };
 203
 204
 205 unsigned int GuiView::GuiViewPrivate::lastIconSize = 0;
 206
 207
 208 GuiView::GuiView(int id)
 209         : QMainWindow(), LyXView(id), commandbuffer_(0), quitting_by_menu_(false),
 210           d(*new GuiViewPrivate)
 211 {
 212         // Qt bug? signal lastWindowClosed does not work
 213         setAttribute(Qt::WA_QuitOnClose, false);
 214         setAttribute(Qt::WA_DeleteOnClose, true);
 215
 216         // hardcode here the platform specific icon size
 217         d.smallIconSize = 14;   // scaling problems
 218         d.normalIconSize = 20;  // ok, default
 219         d.bigIconSize = 26;             // better for some math icons
 220
 221 #ifndef Q_WS_MACX
 222         //  assign an icon to main form. We do not do it under Qt/Mac,
 223         //  since the icon is provided in the application bundle.
 224         FileName const iconname = libFileSearch("images", "lyx", "xpm");
 225         if (!iconname.empty())
 226                 setWindowIcon(QPixmap(toqstr(iconname.absFilename())));
 227 #endif
 228
 229         d.tab_widget_ = new QTabWidget;
 230
 231         QPushButton * closeTabButton = new QPushButton(this);
 232         FileName const file = support::libFileSearch("images", "closetab", "xpm");
 233         if (!file.empty()) {
 234                 QPixmap pm(toqstr(file.absFilename()));
 235                 closeTabButton->setIcon(QIcon(pm));
 236                 closeTabButton->setMaximumSize(pm.size());
 237                 closeTabButton->setFlat(true);
 238         } else {
 239                 closeTabButton->setText("Close");
 240         }
 241         closeTabButton->setCursor(Qt::ArrowCursor);
 242         closeTabButton->setToolTip(tr("Close tab"));
 243         closeTabButton->setEnabled(true);
 244
 245         QObject::connect(d.tab_widget_, SIGNAL(currentChanged(int)),
 246                         this, SLOT(currentTabChanged(int)));
 247         QObject::connect(closeTabButton, SIGNAL(clicked()),
 248                         this, SLOT(closeCurrentTab()));
 249
 250         d.tab_widget_->setCornerWidget(closeTabButton);
 251 #if QT_VERSION >= 0x040200
 252         d.tab_widget_->setUsesScrollButtons(true);
 253 #endif
 254
 255         d.initBackground();
 256         if (d.bg_widget_) {
 257                 lyxerr << "stack widget!" << endl;
 258                 d.stack_widget_ = new QStackedWidget;
 259                 d.stack_widget_->addWidget(d.bg_widget_);
 260                 d.stack_widget_->addWidget(d.tab_widget_);
 261                 setCentralWidget(d.stack_widget_);
 262         } else {
 263                 d.stack_widget_ = 0;
 264                 setCentralWidget(d.tab_widget_);
 265         }
 266
 267         // For Drag&Drop.
 268         setAcceptDrops(true);
 269 }
 270
 271
 272 GuiView::~GuiView()
 273 {
 274         menubar_.reset();
 275         delete &d;
 276 }
 277
 278
 279 void GuiView::close()
 280 {
 281         quitting_by_menu_ = true;
 282         QMainWindow::close();
 283         quitting_by_menu_ = false;
 284 }
 285
 286
 287 void GuiView::setFocus()
 288 {
 289         if (d.tab_widget_->count())
 290                 d.tab_widget_->currentWidget()->setFocus();
 291 }
 292
 293
 294 QMenu* GuiView::createPopupMenu()
 295 {
 296         return d.toolBarPopup(this);
 297 }
 298
 299
 300 void GuiView::init()
 301 {
 302         menubar_.reset(new QLMenubar(this, menubackend));
 303         QObject::connect(menuBar(), SIGNAL(triggered(QAction *)),
 304                 this, SLOT(updateMenu(QAction *)));
 305
 306         getToolbars().init();
 307
 308         statusBar()->setSizeGripEnabled(true);
 309
 310         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 311                 this, SLOT(update_view_state_qt()));
 312
 313         if (d.stack_widget_)
 314                 d.stack_widget_->setCurrentWidget(d.bg_widget_);
 315 }
 316
 317
 318 void GuiView::closeEvent(QCloseEvent * close_event)
 319 {
 320         // we may have been called through the close window button
 321         // which bypasses the LFUN machinery.
 322         if (!quitting_by_menu_ && theApp()->gui().viewIds().size() == 1) {
 323                 if (!theBufferList().quitWriteAll()) {
 324                         close_event->ignore();
 325                         return;
 326                 }
 327         }
 328
 329         // Make sure that no LFUN use this close to be closed View.
 330         theLyXFunc().setLyXView(0);
 331         // Make sure the timer time out will not trigger a statusbar update.
 332         statusbar_timer_.stop();
 333
 334         theApp()->gui().unregisterView(id());
 335         if (!theApp()->gui().viewIds().empty()) {
 336                 // Just close the window and do nothing else if this is not the
 337                 // last window.
 338                 close_event->accept();
 339                 return;
 340         }
 341
 342         quitting = true;
 343
 344         // this is the place where we leave the frontend.
 345         // it is the only point at which we start quitting.
 346         saveGeometry();
 347         close_event->accept();
 348         // quit the event loop
 349         qApp->quit();
 350 }
 351
 352
 353 void GuiView::dragEnterEvent(QDragEnterEvent * event)
 354 {
 355         if (event->mimeData()->hasUrls())
 356                 event->accept();
 357         /// \todo Ask lyx-devel is this is enough:
 358         /// if (event->mimeData()->hasFormat("text/plain"))
 359         ///     event->acceptProposedAction();
 360 }
 361
 362
 363 void GuiView::dropEvent(QDropEvent* event)
 364 {
 365         QList<QUrl> files = event->mimeData()->urls();
 366         if (files.isEmpty())
 367                 return;
 368
 369         LYXERR(Debug::GUI) << BOOST_CURRENT_FUNCTION
 370                 << " got URLs!" << endl;
 371         for (int i = 0; i!=files.size(); ++i) {
 372                 string const file = support::os::internal_path(fromqstr(
 373                         files.at(i).toLocalFile()));
 374                 if (!file.empty())
 375                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 376         }
 377 }
 378
 379
 380 void GuiView::saveGeometry()
 381 {
 382         static bool done = false;
 383         if (done)
 384                 return;
 385         else
 386                 done = true;
 387
 388         // FIXME:
 389         // change the ifdef to 'geometry = normalGeometry();' only
 390         // when Trolltech has fixed the broken normalGeometry on X11:
 391         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 392         // Then also the moveEvent, resizeEvent, and the
 393         // code for floatingGeometry_ can be removed;
 394         // adjust GuiView::setGeometry()
 395
 396         QRect normal_geometry;
 397         int maximized;
 398 #ifdef Q_WS_WIN
 399         normal_geometry = normalGeometry();
 400         if (isMaximized()) {
 401                 maximized = CompletelyMaximized;
 402         } else {
 403                 maximized = NotMaximized;
 404         }
 405 #else
 406         normal_geometry = updateFloatingGeometry();
 407
 408         QDesktopWidget& dw = *qApp->desktop();
 409         QRect desk = dw.availableGeometry(dw.primaryScreen());
 410         // Qt bug on Linux: load completely maximized, vert max. save-> frameGeometry().height() is wrong
 411         if (isMaximized() && desk.width() <= frameGeometry().width() && desk.height() <= frameGeometry().height()) {
 412                 maximized = CompletelyMaximized;
 413                 // maximizing does not work when the window is allready hor. or vert. maximized
 414                 // Tested only on KDE
 415                 int dh = frameGeometry().height() - height();
 416                 if (desk.height() <= normal_geometry.height() + dh)
 417                         normal_geometry.setHeight(normal_geometry.height() - 1);
 418                 int dw = frameGeometry().width() - width();
 419                 if (desk.width() <= normal_geometry.width() + dw)
 420                         normal_geometry.setWidth(normal_geometry.width() - 1);
 421         } else if (desk.height() <= frameGeometry().height()) {
 422                 maximized = VerticallyMaximized;
 423         } else if (desk.width() <= frameGeometry().width()) {
 424                 maximized = HorizontallyMaximized;
 425         } else {
 426                 maximized = NotMaximized;
 427         }
 428
 429
 430 #endif
 431         // save windows size and position
 432         Session & session = LyX::ref().session();
 433         session.sessionInfo().save("WindowWidth", convert<string>(normal_geometry.width()));
 434         session.sessionInfo().save("WindowHeight", convert<string>(normal_geometry.height()));
 435         session.sessionInfo().save("WindowMaximized", convert<string>(maximized));
 436         session.sessionInfo().save("IconSizeXY", convert<string>(iconSize().width()));
 437         if (lyxrc.geometry_xysaved) {
 438                 session.sessionInfo().save("WindowPosX", convert<string>(normal_geometry.x() + d.posx_offset));
 439                 session.sessionInfo().save("WindowPosY", convert<string>(normal_geometry.y() + d.posy_offset));
 440         }
 441         getToolbars().saveToolbarInfo();
 442 }
 443
 444
 445 void GuiView::setGeometry(unsigned int width,
 446                           unsigned int height,
 447                           int posx, int posy,
 448                           int maximized,
 449                           unsigned int iconSizeXY,
 450                           const string & geometryArg)
 451 {
 452         // use last value (not at startup)
 453         if (d.lastIconSize != 0)
 454                 setIconSize(d.lastIconSize);
 455         else if (iconSizeXY != 0)
 456                 setIconSize(iconSizeXY);
 457         else
 458                 setIconSize(d.normalIconSize);
 459
 460         // only true when the -geometry option was NOT used
 461         if (width != 0 && height != 0) {
 462                 if (posx != -1 && posy != -1) {
 463                         // if there are startup positioning problems:
 464                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 465                         QDesktopWidget& dw = *qApp->desktop();
 466                         if (dw.isVirtualDesktop()) {
 467                                 if(!dw.geometry().contains(posx, posy)) {
 468                                         posx = 50;
 469                                         posy = 50;
 470                                 }
 471                         } else {
 472                                 // Which system doesn't use a virtual desktop?
 473                                 // TODO save also last screen number and check if it is still availabe.
 474                         }
 475 #ifdef Q_WS_WIN
 476                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 477                         QWidget::setGeometry(posx, posy, width, height);
 478 #else
 479                         resize(width, height);
 480                         move(posx, posy);
 481 #endif
 482                 } else {
 483                         resize(width, height);
 484                 }
 485
 486                 // remember original size
 487                 floatingGeometry_ = QRect(posx, posy, width, height);
 488
 489                 if (maximized != NotMaximized) {
 490                         if (maximized == CompletelyMaximized) {
 491                                 setWindowState(Qt::WindowMaximized);
 492                         } else {
 493 #ifndef Q_WS_WIN
 494                                 // TODO How to set by the window manager?
 495                                 //      setWindowState(Qt::WindowVerticallyMaximized);
 496                                 //      is not possible
 497                                 QDesktopWidget& dw = *qApp->desktop();
 498                                 QRect desk = dw.availableGeometry(dw.primaryScreen());
 499                                 if (maximized == VerticallyMaximized)
 500                                         resize(width, desk.height());
 501                                 if (maximized == HorizontallyMaximized)
 502                                         resize(desk.width(), height);
 503 #endif
 504                         }
 505                 }
 506         }
 507         else
 508         {
 509                 // FIXME: move this code into parse_geometry() (LyX.cpp)
 510 #ifdef Q_WS_WIN
 511                 int x, y;
 512                 int w, h;
 513                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 514                 re.indexIn(toqstr(geometryArg.c_str()));
 515                 w = re.cap(1).toInt();
 516                 h = re.cap(2).toInt();
 517                 x = re.cap(3).toInt();
 518                 y = re.cap(4).toInt();
 519                 QWidget::setGeometry( x, y, w, h );
 520 #else
 521                 // silence warning
 522                 (void)geometryArg;
 523 #endif
 524         }
 525
 526         d.setBackground();
 527
 528         show();
 529
 530         // For an unknown reason, the Window title update is not effective for
 531         // the second windows up until it is shown on screen (Qt bug?).
 532         updateWindowTitle();
 533
 534         // after show geometry() has changed (Qt bug?)
 535         // we compensate the drift when storing the position
 536         d.posx_offset = 0;
 537         d.posy_offset = 0;
 538         if (width != 0 && height != 0)
 539                 if (posx != -1 && posy != -1) {
 540 #ifdef Q_WS_WIN
 541                         d.posx_offset = posx - normalGeometry().x();
 542                         d.posy_offset = posy - normalGeometry().y();
 543 #else
 544 #ifndef Q_WS_MACX
 545                         if (maximized == NotMaximized) {
 546                                 d.posx_offset = posx - geometry().x();
 547                                 d.posy_offset = posy - geometry().y();
 548                         }
 549 #endif
 550 #endif
 551                 }
 552 }
 553
 554
 555 void GuiView::updateMenu(QAction * /*action*/)
 556 {
 557         menubar_->update();
 558 }
 559
 560
 561 void GuiView::setWindowTitle(docstring const & t, docstring const & it)
 562 {
 563         QString title = windowTitle();
 564         QString new_title = toqstr(t);
 565         if (title != new_title) {
 566                 QMainWindow::setWindowTitle(new_title);
 567                 QMainWindow::setWindowIconText(toqstr(it));
 568         }
 569 }
 570
 571
 572 void GuiView::addCommandBuffer(QToolBar * toolbar)
 573 {
 574         commandbuffer_ = new QCommandBuffer(this, *controlcommand_);
 575         focus_command_buffer.connect(boost::bind(&GuiView::focus_command_widget, this));
 576         toolbar->addWidget(commandbuffer_);
 577 }
 578
 579
 580 void GuiView::message(docstring const & str)
 581 {
 582         statusBar()->showMessage(toqstr(str));
 583         statusbar_timer_.stop();
 584         statusbar_timer_.start(statusbar_timer_value);
 585 }
 586
 587
 588 void GuiView::clearMessage()
 589 {
 590         update_view_state_qt();
 591 }
 592
 593
 594 void GuiView::setIconSize(unsigned int size)
 595 {
 596         d.lastIconSize = size;
 597         QMainWindow::setIconSize(QSize(size, size));
 598 }
 599
 600
 601 void GuiView::smallSizedIcons()
 602 {
 603         setIconSize(d.smallIconSize);
 604 }
 605
 606
 607 void GuiView::normalSizedIcons()
 608 {
 609         setIconSize(d.normalIconSize);
 610 }
 611
 612
 613 void GuiView::bigSizedIcons()
 614 {
 615         setIconSize(d.bigIconSize);
 616 }
 617
 618
 619 void GuiView::focus_command_widget()
 620 {
 621         if (commandbuffer_)
 622                 commandbuffer_->focus_command();
 623 }
 624
 625
 626 void GuiView::update_view_state_qt()
 627 {
 628         if (!hasFocus())
 629                 return;
 630         theLyXFunc().setLyXView(this);
 631         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 632         statusbar_timer_.stop();
 633 }
 634
 635
 636 void GuiView::closeCurrentTab()
 637 {
 638         dispatch(FuncRequest(LFUN_BUFFER_CLOSE));
 639 }
 640
 641
 642 void GuiView::currentTabChanged(int i)
 643 {
 644         disconnectBuffer();
 645         disconnectBufferView();
 646         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 647         BOOST_ASSERT(wa);
 648         BufferView & bv = wa->bufferView();
 649         connectBufferView(bv);
 650         connectBuffer(*bv.buffer());
 651         bv.updateMetrics(false);
 652         bv.cursor().fixIfBroken();
 653         wa->setUpdatesEnabled(true);
 654         wa->redraw();
 655         wa->setFocus();
 656
 657         updateToc();
 658         // Buffer-dependent dialogs should be updated or
 659         // hidden. This should go here because some dialogs (eg ToC)
 660         // require bv_->text.
 661         getDialogs().updateBufferDependent(true);
 662         updateMenubar();
 663         updateToolbars();
 664         updateLayoutChoice();
 665         updateWindowTitle();
 666         updateStatusBar();
 667
 668         lyxerr << "currentTabChanged " << i
 669                 << "File" << wa->bufferView().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         return wa;
 864 }
 865
 866
 867 WorkArea * GuiView::currentWorkArea()
 868 {
 869         if (d.tab_widget_->count() == 0)
 870                 return 0;
 871         BOOST_ASSERT(dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget()));
 872         return dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 873 }
 874
 875
 876 WorkArea const * GuiView::currentWorkArea() const
 877 {
 878         if (d.tab_widget_->count() == 0)
 879                 return 0;
 880         BOOST_ASSERT(dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget()));
 881         return dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget());
 882 }
 883
 884
 885 void GuiView::setCurrentWorkArea(WorkArea * work_area)
 886 {
 887         BOOST_ASSERT(work_area);
 888
 889         // Changing work area can result from opening a file so
 890         // update the toc in any case.
 891         updateToc();
 892
 893         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(work_area);
 894         BOOST_ASSERT(wa);
 895         d.tab_widget_->setCurrentWidget(wa);
 896         wa->setFocus();
 897 }
 898
 899
 900 void GuiView::removeWorkArea(WorkArea * work_area)
 901 {
 902         BOOST_ASSERT(work_area);
 903         if (work_area == currentWorkArea()) {
 904                 disconnectBuffer();
 905                 disconnectBufferView();
 906         }
 907
 908         // removing a work area often results from closing a file so
 909         // update the toc in any case.
 910         updateToc();
 911
 912         GuiWorkArea * gwa = dynamic_cast<GuiWorkArea *>(work_area);
 913         BOOST_ASSERT(gwa);
 914         int index = d.tab_widget_->indexOf(gwa);
 915         d.tab_widget_->removeTab(index);
 916
 917         delete gwa;
 918
 919         if (d.tab_widget_->count()) {
 920                 // make sure the next work area is enabled.
 921                 d.tab_widget_->currentWidget()->setUpdatesEnabled(true);
 922                 return;
 923         }
 924
 925         getDialogs().hideBufferDependent();
 926         if (d.stack_widget_) {
 927                 // No more work area, switch to the background widget.
 928                 d.setBackground();
 929         }
 930 }
 931
 932
 933 } // namespace frontend
 934 } // namespace lyx
 935
 936 #include "GuiView_moc.cpp"