src/frontends/qt4/GuiView.cpp

   1 /**
   2  * \file GuiView.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Lars Gullik Bjønnes
   7  * \author John Levon
   8  * \author Abdelrazak Younes
   9  * \author Peter Kümmel
  10  *
  11  * Full author contact details are available in file CREDITS.
  12  */
  13
  14 #include <config.h>
  15
  16 #include "GuiView.h"
  17
  18 #include "GuiImplementation.h"
  19 #include "GuiWorkArea.h"
  20 #include "GuiKeySymbol.h"
  21 #include "GuiMenubar.h"
  22 #include "GuiToolbar.h"
  23 #include "GuiToolbars.h"
  24 #include "qt_helpers.h"
  25
  26 #include "frontends/Application.h"
  27 #include "frontends/Dialogs.h"
  28 #include "frontends/Gui.h"
  29 #include "frontends/WorkArea.h"
  30
  31 #include "support/filetools.h"
  32 #include "support/convert.h"
  33 #include "support/lstrings.h"
  34 #include "support/os.h"
  35
  36 #include "Buffer.h"
  37 #include "BufferParams.h"
  38 #include "BufferView.h"
  39 #include "BufferList.h"
  40 #include "callback.h"
  41 #include "debug.h"
  42 #include "FuncRequest.h"
  43 #include "Layout.h"
  44 #include "LyX.h"
  45 #include "LyXFunc.h"
  46 #include "LyXRC.h"
  47 #include "MenuBackend.h"
  48 #include "Paragraph.h"
  49 #include "Session.h"
  50 #include "version.h"
  51
  52 #include <boost/current_function.hpp>
  53
  54 #include <QAction>
  55 #include <QApplication>
  56 #include <QCloseEvent>
  57 #include <QDesktopWidget>
  58 #include <QDragEnterEvent>
  59 #include <QDropEvent>
  60 #include <QList>
  61 #include <QMenu>
  62 #include <QPainter>
  63 #include <QPixmap>
  64 #include <QPushButton>
  65 #include <QStackedWidget>
  66 #include <QStatusBar>
  67 #include <QTabBar>
  68 #include <QToolBar>
  69 #include <QTabWidget>
  70 #include <QUrl>
  71
  72 using std::endl;
  73 using std::string;
  74 using std::vector;
  75
  76 namespace lyx {
  77
  78 using support::FileName;
  79 using support::libFileSearch;
  80 using support::makeDisplayPath;
  81
  82 namespace frontend {
  83
  84 namespace {
  85
  86 int const statusbar_timer_value = 3000;
  87
  88 class BackgroundWidget : public QWidget
  89 {
  90 public:
  91         BackgroundWidget(QString const & file, QString const & text)
  92         {
  93                 splash_ = new QPixmap(file);
  94                 if (!splash_) {
  95                         lyxerr << "could not load splash screen: '" << fromqstr(file) << "'" << endl;
  96                         return;
  97                 }
  98
  99                 QPainter pain(splash_);
 100                 pain.setPen(QColor(255, 255, 0));
 101                 QFont font;
 102                 // The font used to display the version info
 103                 font.setStyleHint(QFont::SansSerif);
 104                 font.setWeight(QFont::Bold);
 105                 font.setPointSize(convert<int>(lyxrc.font_sizes[Font::SIZE_LARGE]));
 106                 pain.setFont(font);
 107                 pain.drawText(260, 270, text);
 108         }
 109
 110         void paintEvent(QPaintEvent *)
 111         {
 112                 if (!splash_)
 113                         return;
 114
 115                 int x = (width() - splash_->width()) / 2;
 116                 int y = (height() - splash_->height()) / 2;
 117                 QPainter pain(this);
 118                 pain.drawPixmap(x, y, *splash_);
 119         }
 120
 121 private:
 122         QPixmap * splash_;
 123 };
 124
 125
 126 class TabWidget : public QTabWidget {
 127 public:
 128         void showBar(bool show) { tabBar()->setVisible(show); }
 129 };
 130
 131
 132 } // namespace anon
 133
 134
 135 struct GuiViewBase::GuiViewPrivate
 136 {
 137         string cur_title;
 138
 139         int posx_offset;
 140         int posy_offset;
 141
 142         TabWidget * tab_widget_;
 143         QStackedWidget * stack_widget_;
 144         BackgroundWidget * bg_widget_;
 145         /// view's menubar
 146         GuiMenubar * menubar_;
 147         /// view's toolbars
 148         GuiToolbars * toolbars_;
 149         ///
 150         docstring current_layout;
 151
 152         GuiViewPrivate() : posx_offset(0), posy_offset(0) {}
 153
 154         unsigned int smallIconSize;
 155         unsigned int normalIconSize;
 156         unsigned int bigIconSize;
 157         // static needed by "New Window"
 158         static unsigned int lastIconSize;
 159
 160         QMenu * toolBarPopup(GuiViewBase * parent)
 161         {
 162                 // FIXME: translation
 163                 QMenu * menu = new QMenu(parent);
 164                 QActionGroup * iconSizeGroup = new QActionGroup(parent);
 165
 166                 QAction * smallIcons = new QAction(iconSizeGroup);
 167                 smallIcons->setText(qt_("Small-sized icons"));
 168                 smallIcons->setCheckable(true);
 169                 QObject::connect(smallIcons, SIGNAL(triggered()), parent, SLOT(smallSizedIcons()));
 170                 menu->addAction(smallIcons);
 171
 172                 QAction * normalIcons = new QAction(iconSizeGroup);
 173                 normalIcons->setText(qt_("Normal-sized icons"));
 174                 normalIcons->setCheckable(true);
 175                 QObject::connect(normalIcons, SIGNAL(triggered()), parent, SLOT(normalSizedIcons()));
 176                 menu->addAction(normalIcons);
 177
 178                 QAction * bigIcons = new QAction(iconSizeGroup);
 179                 bigIcons->setText(qt_("Big-sized icons"));
 180                 bigIcons->setCheckable(true);
 181                 QObject::connect(bigIcons, SIGNAL(triggered()), parent, SLOT(bigSizedIcons()));
 182                 menu->addAction(bigIcons);
 183
 184                 unsigned int cur = parent->iconSize().width();
 185                 if ( cur == parent->d.smallIconSize)
 186                         smallIcons->setChecked(true);
 187                 else if (cur == parent->d.normalIconSize)
 188                         normalIcons->setChecked(true);
 189                 else if (cur == parent->d.bigIconSize)
 190                         bigIcons->setChecked(true);
 191
 192                 return menu;
 193         }
 194
 195         void initBackground()
 196         {
 197                 bg_widget_ = 0;
 198                 LYXERR(Debug::GUI) << "show banner: " << lyxrc.show_banner << endl;
 199                 /// The text to be written on top of the pixmap
 200                 QString const text = lyx_version ? QString(lyx_version) : qt_("unknown version");
 201                 FileName const file = support::libFileSearch("images", "banner", "png");
 202                 if (file.empty())
 203                         return;
 204
 205                 bg_widget_ = new BackgroundWidget(toqstr(file.absFilename()), text);
 206         }
 207
 208         void setBackground()
 209         {
 210                 if (!bg_widget_)
 211                         return;
 212
 213                 stack_widget_->setCurrentWidget(bg_widget_);
 214                 bg_widget_->setUpdatesEnabled(true);
 215         }
 216 };
 217
 218
 219 unsigned int GuiViewBase::GuiViewPrivate::lastIconSize = 0;
 220
 221
 222 GuiViewBase::GuiViewBase(int id)
 223         : QMainWindow(), LyXView(id), quitting_by_menu_(false),
 224           d(*new GuiViewPrivate)
 225 {
 226         // Qt bug? signal lastWindowClosed does not work
 227         setAttribute(Qt::WA_QuitOnClose, false);
 228         setAttribute(Qt::WA_DeleteOnClose, true);
 229
 230         // hardcode here the platform specific icon size
 231         d.smallIconSize = 14;   // scaling problems
 232         d.normalIconSize = 20;  // ok, default
 233         d.bigIconSize = 26;             // better for some math icons
 234
 235 #ifndef Q_WS_MACX
 236         // assign an icon to main form. We do not do it under Qt/Mac,
 237         // since the icon is provided in the application bundle.
 238         FileName const iconname = libFileSearch("images", "lyx", "png");
 239         if (!iconname.empty())
 240                 setWindowIcon(QPixmap(toqstr(iconname.absFilename())));
 241 #endif
 242
 243         d.tab_widget_ = new TabWidget;
 244
 245         QPushButton * closeTabButton = new QPushButton(this);
 246         FileName const file = support::libFileSearch("images", "closetab", "png");
 247         if (!file.empty()) {
 248                 QPixmap pm(toqstr(file.absFilename()));
 249                 closeTabButton->setIcon(QIcon(pm));
 250                 closeTabButton->setMaximumSize(pm.size());
 251                 closeTabButton->setFlat(true);
 252         } else {
 253                 closeTabButton->setText("Close");
 254         }
 255         closeTabButton->setCursor(Qt::ArrowCursor);
 256         closeTabButton->setToolTip(tr("Close tab"));
 257         closeTabButton->setEnabled(true);
 258
 259         QObject::connect(d.tab_widget_, SIGNAL(currentChanged(int)),
 260                         this, SLOT(currentTabChanged(int)));
 261         QObject::connect(closeTabButton, SIGNAL(clicked()),
 262                         this, SLOT(closeCurrentTab()));
 263
 264         d.tab_widget_->setCornerWidget(closeTabButton);
 265 #if QT_VERSION >= 0x040200
 266         d.tab_widget_->setUsesScrollButtons(true);
 267 #endif
 268
 269         d.initBackground();
 270         if (d.bg_widget_) {
 271                 LYXERR(Debug::GUI) << "stack widget!" << endl;
 272                 d.stack_widget_ = new QStackedWidget;
 273                 d.stack_widget_->addWidget(d.bg_widget_);
 274                 d.stack_widget_->addWidget(d.tab_widget_);
 275                 setCentralWidget(d.stack_widget_);
 276         } else {
 277                 d.stack_widget_ = 0;
 278                 setCentralWidget(d.tab_widget_);
 279         }
 280
 281         // For Drag&Drop.
 282         setAcceptDrops(true);
 283 }
 284
 285
 286 GuiViewBase::~GuiViewBase()
 287 {
 288         delete d.menubar_;
 289         delete d.toolbars_;
 290         delete &d;
 291 }
 292
 293
 294 void GuiViewBase::close()
 295 {
 296         quitting_by_menu_ = true;
 297         while (d.tab_widget_->count()) {
 298                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(0));
 299                 BOOST_ASSERT(wa);
 300                 d.tab_widget_->removeTab(0);
 301                 delete wa;
 302         }
 303         QMainWindow::close();
 304         quitting_by_menu_ = false;
 305 }
 306
 307
 308 void GuiViewBase::setFocus()
 309 {
 310         if (d.tab_widget_->count())
 311                 d.tab_widget_->currentWidget()->setFocus();
 312 }
 313
 314
 315 QMenu* GuiViewBase::createPopupMenu()
 316 {
 317         return d.toolBarPopup(this);
 318 }
 319
 320
 321 void GuiViewBase::init()
 322 {
 323         // GuiToolbars *must* be initialised before GuiMenubar.
 324         d.toolbars_ = new GuiToolbars(*this);
 325         // FIXME: GuiToolbars::init() cannot be integrated in the ctor
 326         // because LyXFunc::getStatus() needs a properly initialized
 327         // GuiToolbars object (for LFUN_TOOLBAR_TOGGLE).
 328         d.toolbars_->init();
 329         d.menubar_ = new GuiMenubar(this, menubackend);
 330
 331         statusBar()->setSizeGripEnabled(true);
 332
 333         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 334                 this, SLOT(update_view_state_qt()));
 335
 336         if (d.stack_widget_)
 337                 d.stack_widget_->setCurrentWidget(d.bg_widget_);
 338 }
 339
 340
 341 void GuiViewBase::closeEvent(QCloseEvent * close_event)
 342 {
 343         // we may have been called through the close window button
 344         // which bypasses the LFUN machinery.
 345         if (!quitting_by_menu_ && theApp()->gui().viewIds().size() == 1) {
 346                 if (!theBufferList().quitWriteAll()) {
 347                         close_event->ignore();
 348                         return;
 349                 }
 350         }
 351
 352         // Make sure that no LFUN use this close to be closed View.
 353         theLyXFunc().setLyXView(0);
 354         // Make sure the timer time out will not trigger a statusbar update.
 355         statusbar_timer_.stop();
 356
 357         theApp()->gui().unregisterView(id());
 358         if (!theApp()->gui().viewIds().empty()) {
 359                 // Just close the window and do nothing else if this is not the
 360                 // last window.
 361                 close_event->accept();
 362                 return;
 363         }
 364
 365         quitting = true;
 366
 367         // this is the place where we leave the frontend.
 368         // it is the only point at which we start quitting.
 369         saveGeometry();
 370         close_event->accept();
 371         // quit the event loop
 372         qApp->quit();
 373 }
 374
 375
 376 void GuiViewBase::dragEnterEvent(QDragEnterEvent * event)
 377 {
 378         if (event->mimeData()->hasUrls())
 379                 event->accept();
 380         /// \todo Ask lyx-devel is this is enough:
 381         /// if (event->mimeData()->hasFormat("text/plain"))
 382         ///     event->acceptProposedAction();
 383 }
 384
 385
 386 void GuiViewBase::dropEvent(QDropEvent* event)
 387 {
 388         QList<QUrl> files = event->mimeData()->urls();
 389         if (files.isEmpty())
 390                 return;
 391
 392         LYXERR(Debug::GUI) << BOOST_CURRENT_FUNCTION
 393                 << " got URLs!" << endl;
 394         for (int i = 0; i != files.size(); ++i) {
 395                 string const file = support::os::internal_path(fromqstr(
 396                         files.at(i).toLocalFile()));
 397                 if (!file.empty())
 398                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 399         }
 400 }
 401
 402
 403 void GuiViewBase::saveGeometry()
 404 {
 405         static bool done = false;
 406         if (done)
 407                 return;
 408         else
 409                 done = true;
 410
 411         // FIXME:
 412         // change the ifdef to 'geometry = normalGeometry();' only
 413         // when Trolltech has fixed the broken normalGeometry on X11:
 414         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 415         // Then also the moveEvent, resizeEvent, and the
 416         // code for floatingGeometry_ can be removed;
 417         // adjust GuiViewBase::setGeometry()
 418
 419         QRect normal_geometry;
 420         int maximized;
 421 #ifdef Q_WS_WIN
 422         normal_geometry = normalGeometry();
 423         if (isMaximized()) {
 424                 maximized = CompletelyMaximized;
 425         } else {
 426                 maximized = NotMaximized;
 427         }
 428 #else
 429         normal_geometry = updateFloatingGeometry();
 430
 431         QDesktopWidget& dw = *qApp->desktop();
 432         QRect desk = dw.availableGeometry(dw.primaryScreen());
 433         // Qt bug on Linux: load completely maximized, vert max. save-> frameGeometry().height() is wrong
 434         if (isMaximized() && desk.width() <= frameGeometry().width() && desk.height() <= frameGeometry().height()) {
 435                 maximized = CompletelyMaximized;
 436                 // maximizing does not work when the window is allready hor. or vert. maximized
 437                 // Tested only on KDE
 438                 int dh = frameGeometry().height() - height();
 439                 if (desk.height() <= normal_geometry.height() + dh)
 440                         normal_geometry.setHeight(normal_geometry.height() - 1);
 441                 int dw = frameGeometry().width() - width();
 442                 if (desk.width() <= normal_geometry.width() + dw)
 443                         normal_geometry.setWidth(normal_geometry.width() - 1);
 444         } else if (desk.height() <= frameGeometry().height()) {
 445                 maximized = VerticallyMaximized;
 446         } else if (desk.width() <= frameGeometry().width()) {
 447                 maximized = HorizontallyMaximized;
 448         } else {
 449                 maximized = NotMaximized;
 450         }
 451
 452
 453 #endif
 454         // save windows size and position
 455         Session & session = LyX::ref().session();
 456         session.sessionInfo().save("WindowWidth", convert<string>(normal_geometry.width()));
 457         session.sessionInfo().save("WindowHeight", convert<string>(normal_geometry.height()));
 458         session.sessionInfo().save("WindowMaximized", convert<string>(maximized));
 459         session.sessionInfo().save("IconSizeXY", convert<string>(iconSize().width()));
 460         if (lyxrc.geometry_xysaved) {
 461                 session.sessionInfo().save("WindowPosX", convert<string>(normal_geometry.x() + d.posx_offset));
 462                 session.sessionInfo().save("WindowPosY", convert<string>(normal_geometry.y() + d.posy_offset));
 463         }
 464         d.toolbars_->saveToolbarInfo();
 465 }
 466
 467
 468 void GuiViewBase::setGeometry(unsigned int width,
 469                           unsigned int height,
 470                           int posx, int posy,
 471                           int maximized,
 472                           unsigned int iconSizeXY,
 473                           const string & geometryArg)
 474 {
 475         // use last value (not at startup)
 476         if (d.lastIconSize != 0)
 477                 setIconSize(d.lastIconSize);
 478         else if (iconSizeXY != 0)
 479                 setIconSize(iconSizeXY);
 480         else
 481                 setIconSize(d.normalIconSize);
 482
 483         // only true when the -geometry option was NOT used
 484         if (width != 0 && height != 0) {
 485                 if (posx != -1 && posy != -1) {
 486                         // if there are startup positioning problems:
 487                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 488                         QDesktopWidget& dw = *qApp->desktop();
 489                         if (dw.isVirtualDesktop()) {
 490                                 if(!dw.geometry().contains(posx, posy)) {
 491                                         posx = 50;
 492                                         posy = 50;
 493                                 }
 494                         } else {
 495                                 // Which system doesn't use a virtual desktop?
 496                                 // TODO save also last screen number and check if it is still availabe.
 497                         }
 498 #ifdef Q_WS_WIN
 499                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 500                         QWidget::setGeometry(posx, posy, width, height);
 501 #else
 502                         resize(width, height);
 503                         move(posx, posy);
 504 #endif
 505                 } else {
 506                         resize(width, height);
 507                 }
 508
 509                 // remember original size
 510                 floatingGeometry_ = QRect(posx, posy, width, height);
 511
 512                 if (maximized != NotMaximized) {
 513                         if (maximized == CompletelyMaximized) {
 514                                 setWindowState(Qt::WindowMaximized);
 515                         } else {
 516 #ifndef Q_WS_WIN
 517                                 // TODO How to set by the window manager?
 518                                 //      setWindowState(Qt::WindowVerticallyMaximized);
 519                                 //      is not possible
 520                                 QDesktopWidget& dw = *qApp->desktop();
 521                                 QRect desk = dw.availableGeometry(dw.primaryScreen());
 522                                 if (maximized == VerticallyMaximized)
 523                                         resize(width, desk.height());
 524                                 if (maximized == HorizontallyMaximized)
 525                                         resize(desk.width(), height);
 526 #endif
 527                         }
 528                 }
 529         }
 530         else
 531         {
 532                 // FIXME: move this code into parse_geometry() (LyX.cpp)
 533 #ifdef Q_WS_WIN
 534                 int x, y;
 535                 int w, h;
 536                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 537                 re.indexIn(toqstr(geometryArg.c_str()));
 538                 w = re.cap(1).toInt();
 539                 h = re.cap(2).toInt();
 540                 x = re.cap(3).toInt();
 541                 y = re.cap(4).toInt();
 542                 QWidget::setGeometry( x, y, w, h );
 543 #else
 544                 // silence warning
 545                 (void)geometryArg;
 546 #endif
 547         }
 548
 549         d.setBackground();
 550
 551         show();
 552
 553         // For an unknown reason, the Window title update is not effective for
 554         // the second windows up until it is shown on screen (Qt bug?).
 555         updateWindowTitle();
 556
 557         // after show geometry() has changed (Qt bug?)
 558         // we compensate the drift when storing the position
 559         d.posx_offset = 0;
 560         d.posy_offset = 0;
 561         if (width != 0 && height != 0)
 562                 if (posx != -1 && posy != -1) {
 563 #ifdef Q_WS_WIN
 564                         d.posx_offset = posx - normalGeometry().x();
 565                         d.posy_offset = posy - normalGeometry().y();
 566 #else
 567 #ifndef Q_WS_MACX
 568                         if (maximized == NotMaximized) {
 569                                 d.posx_offset = posx - geometry().x();
 570                                 d.posy_offset = posy - geometry().y();
 571                         }
 572 #endif
 573 #endif
 574                 }
 575 }
 576
 577
 578 void GuiViewBase::setWindowTitle(docstring const & t, docstring const & it)
 579 {
 580         QString title = windowTitle();
 581         QString new_title = toqstr(t);
 582         if (title != new_title) {
 583                 QMainWindow::setWindowTitle(new_title);
 584                 QMainWindow::setWindowIconText(toqstr(it));
 585         }
 586 }
 587
 588
 589 void GuiViewBase::message(docstring const & str)
 590 {
 591         statusBar()->showMessage(toqstr(str));
 592         statusbar_timer_.stop();
 593         statusbar_timer_.start(statusbar_timer_value);
 594 }
 595
 596
 597 void GuiViewBase::clearMessage()
 598 {
 599         update_view_state_qt();
 600 }
 601
 602
 603 void GuiViewBase::setIconSize(unsigned int size)
 604 {
 605         d.lastIconSize = size;
 606         QMainWindow::setIconSize(QSize(size, size));
 607 }
 608
 609
 610 void GuiViewBase::smallSizedIcons()
 611 {
 612         setIconSize(d.smallIconSize);
 613 }
 614
 615
 616 void GuiViewBase::normalSizedIcons()
 617 {
 618         setIconSize(d.normalIconSize);
 619 }
 620
 621
 622 void GuiViewBase::bigSizedIcons()
 623 {
 624         setIconSize(d.bigIconSize);
 625 }
 626
 627
 628 void GuiViewBase::update_view_state_qt()
 629 {
 630         if (!hasFocus())
 631                 return;
 632         theLyXFunc().setLyXView(this);
 633         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 634         statusbar_timer_.stop();
 635 }
 636
 637
 638 void GuiViewBase::closeCurrentTab()
 639 {
 640         dispatch(FuncRequest(LFUN_BUFFER_CLOSE));
 641 }
 642
 643
 644 void GuiViewBase::currentTabChanged(int i)
 645 {
 646         disconnectBuffer();
 647         disconnectBufferView();
 648         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 649         BOOST_ASSERT(wa);
 650         BufferView & bv = wa->bufferView();
 651         connectBufferView(bv);
 652         connectBuffer(bv.buffer());
 653         bv.updateMetrics(false);
 654         bv.cursor().fixIfBroken();
 655         wa->setUpdatesEnabled(true);
 656         wa->redraw();
 657         wa->setFocus();
 658
 659         updateToc();
 660         // Buffer-dependent dialogs should be updated or
 661         // hidden. This should go here because some dialogs (eg ToC)
 662         // require bv_->text.
 663         getDialogs().updateBufferDependent(true);
 664         updateToolbars();
 665         updateLayoutChoice();
 666         updateWindowTitle();
 667         updateStatusBar();
 668
 669         LYXERR(Debug::GUI) << "currentTabChanged " << i
 670                 << "File" << bv.buffer().fileName() << endl;
 671 }
 672
 673
 674 void GuiViewBase::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 GuiViewBase::activated(FuncRequest const & func)
 685 {
 686         dispatch(func);
 687 }
 688
 689
 690 bool GuiViewBase::hasFocus() const
 691 {
 692         return qApp->activeWindow() == this;
 693 }
 694
 695
 696 QRect  GuiViewBase::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 GuiViewBase::resizeEvent(QResizeEvent *)
 709 {
 710         updateFloatingGeometry();
 711 }
 712
 713
 714 void GuiViewBase::moveEvent(QMoveEvent *)
 715 {
 716         updateFloatingGeometry();
 717 }
 718
 719
 720 bool GuiViewBase::event(QEvent * e)
 721 {
 722         switch (e->type())
 723         {
 724         // Useful debug code:
 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::WindowActivate:
 740                 if (d.tab_widget_->count()) {
 741                         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 742                         BOOST_ASSERT(wa);
 743                         BufferView & bv = wa->bufferView();
 744                         connectBufferView(bv);
 745                         connectBuffer(bv.buffer());
 746                         // The document structure might have changed in another view.
 747                         updateToc();
 748                 }
 749                 return QMainWindow::event(e);
 750
 751         case QEvent::ShortcutOverride: {
 752                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 753                 if (d.tab_widget_->count() == 0) {
 754                         theLyXFunc().setLyXView(this);
 755                         KeySymbol sym;
 756                         setKeySymbol(&sym, ke);
 757                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 758                         e->accept();
 759                         return true;
 760                 }
 761                 if (ke->key() == Qt::Key_Tab || ke->key() == Qt::Key_Backtab) {
 762                         KeySymbol sym;
 763                         setKeySymbol(&sym, ke);
 764                         currentWorkArea()->processKeySym(sym, NoModifier);
 765                         e->accept();
 766                         return true;
 767                 }
 768         }
 769         default:
 770                 return QMainWindow::event(e);
 771         }
 772 }
 773
 774
 775 bool GuiViewBase::focusNextPrevChild(bool /*next*/)
 776 {
 777         setFocus();
 778         return true;
 779 }
 780
 781
 782 void GuiViewBase::showView()
 783 {
 784         QMainWindow::setWindowTitle(qt_("LyX"));
 785         QMainWindow::show();
 786         updateFloatingGeometry();
 787 }
 788
 789
 790 void GuiViewBase::busy(bool yes)
 791 {
 792         if (d.tab_widget_->count()) {
 793                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 794                 BOOST_ASSERT(wa);
 795                 wa->setUpdatesEnabled(!yes);
 796                 if (yes)
 797                         wa->stopBlinkingCursor();
 798                 else
 799                         wa->startBlinkingCursor();
 800         }
 801
 802         if (yes)
 803                 QApplication::setOverrideCursor(Qt::WaitCursor);
 804         else
 805                 QApplication::restoreOverrideCursor();
 806 }
 807
 808
 809 GuiToolbar * GuiViewBase::makeToolbar(ToolbarInfo const & tbinfo, bool newline)
 810 {
 811         GuiToolbar * toolBar = new GuiToolbar(tbinfo, *this);
 812
 813         if (tbinfo.flags & ToolbarInfo::TOP) {
 814                 if (newline)
 815                         addToolBarBreak(Qt::TopToolBarArea);
 816                 addToolBar(Qt::TopToolBarArea, toolBar);
 817         }
 818
 819         if (tbinfo.flags & ToolbarInfo::BOTTOM) {
 820 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 821 #if (QT_VERSION >= 0x040202)
 822                 if (newline)
 823                         addToolBarBreak(Qt::BottomToolBarArea);
 824 #endif
 825                 addToolBar(Qt::BottomToolBarArea, toolBar);
 826         }
 827
 828         if (tbinfo.flags & ToolbarInfo::LEFT) {
 829 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 830 #if (QT_VERSION >= 0x040202)
 831                 if (newline)
 832                         addToolBarBreak(Qt::LeftToolBarArea);
 833 #endif
 834                 addToolBar(Qt::LeftToolBarArea, toolBar);
 835         }
 836
 837         if (tbinfo.flags & ToolbarInfo::RIGHT) {
 838 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 839 #if (QT_VERSION >= 0x040202)
 840                 if (newline)
 841                         addToolBarBreak(Qt::RightToolBarArea);
 842 #endif
 843                 addToolBar(Qt::RightToolBarArea, toolBar);
 844         }
 845
 846         // The following does not work so I cannot restore to exact toolbar location
 847         /*
 848         ToolbarSection::ToolbarInfo & tbinfo = LyX::ref().session().toolbars().load(tbinfo.name);
 849         toolBar->move(tbinfo.posx, tbinfo.posy);
 850         */
 851
 852         return toolBar;
 853 }
 854
 855
 856 WorkArea * GuiViewBase::workArea(Buffer & buffer)
 857 {
 858         for (int i = 0; i != d.tab_widget_->count(); ++i) {
 859                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 860                 BOOST_ASSERT(wa);
 861                 if (&wa->bufferView().buffer() == &buffer)
 862                         return wa;
 863         }
 864         return 0;
 865 }
 866
 867
 868 WorkArea * GuiViewBase::addWorkArea(Buffer & buffer)
 869 {
 870         GuiWorkArea * wa = new GuiWorkArea(buffer, *this);
 871         wa->setUpdatesEnabled(false);
 872         d.tab_widget_->addTab(wa, toqstr(makeDisplayPath(buffer.fileName(), 30)));
 873         wa->bufferView().updateMetrics(false);
 874         if (d.stack_widget_)
 875                 d.stack_widget_->setCurrentWidget(d.tab_widget_);
 876         // Hide tabbar if there's only one tab.
 877         d.tab_widget_->showBar(d.tab_widget_->count() > 1);
 878         return wa;
 879 }
 880
 881
 882 WorkArea * GuiViewBase::currentWorkArea()
 883 {
 884         if (d.tab_widget_->count() == 0)
 885                 return 0;
 886         BOOST_ASSERT(dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget()));
 887         return dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 888 }
 889
 890
 891 WorkArea const * GuiViewBase::currentWorkArea() const
 892 {
 893         if (d.tab_widget_->count() == 0)
 894                 return 0;
 895         BOOST_ASSERT(dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget()));
 896         return dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget());
 897 }
 898
 899
 900 void GuiViewBase::setCurrentWorkArea(WorkArea * work_area)
 901 {
 902         BOOST_ASSERT(work_area);
 903
 904         // Changing work area can result from opening a file so
 905         // update the toc in any case.
 906         updateToc();
 907
 908         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(work_area);
 909         BOOST_ASSERT(wa);
 910         if (wa != d.tab_widget_->currentWidget())
 911                 // Switch to the work area.
 912                 d.tab_widget_->setCurrentWidget(wa);
 913         else
 914                 // Make sure the work area is up to date.
 915                 currentTabChanged(d.tab_widget_->currentIndex());
 916         wa->setFocus();
 917 }
 918
 919
 920 void GuiViewBase::removeWorkArea(WorkArea * work_area)
 921 {
 922         BOOST_ASSERT(work_area);
 923         if (work_area == currentWorkArea()) {
 924                 disconnectBuffer();
 925                 disconnectBufferView();
 926         }
 927
 928         // removing a work area often results from closing a file so
 929         // update the toc in any case.
 930         updateToc();
 931
 932         GuiWorkArea * gwa = dynamic_cast<GuiWorkArea *>(work_area);
 933         gwa->setUpdatesEnabled(false);
 934         BOOST_ASSERT(gwa);
 935         int index = d.tab_widget_->indexOf(gwa);
 936         d.tab_widget_->removeTab(index);
 937
 938         delete gwa;
 939
 940         if (d.tab_widget_->count()) {
 941                 // make sure the next work area is enabled.
 942                 d.tab_widget_->currentWidget()->setUpdatesEnabled(true);
 943                 // Hide tabbar if there's only one tab.
 944                 d.tab_widget_->showBar(d.tab_widget_->count() > 1);
 945                 return;
 946         }
 947
 948         getDialogs().hideBufferDependent();
 949         if (d.stack_widget_) {
 950                 // No more work area, switch to the background widget.
 951                 d.setBackground();
 952         }
 953 }
 954
 955
 956 void GuiViewBase::showMiniBuffer(bool visible)
 957 {
 958         d.toolbars_->showCommandBuffer(visible);
 959 }
 960
 961
 962 void GuiViewBase::openMenu(docstring const & name)
 963 {
 964         d.menubar_->openByName(toqstr(name));
 965 }
 966
 967
 968 void GuiViewBase::openLayoutList()
 969 {
 970         d.toolbars_->openLayoutList();
 971 }
 972
 973
 974 void GuiViewBase::updateLayoutChoice()
 975 {
 976         // Don't show any layouts without a buffer
 977         if (!buffer()) {
 978                 d.toolbars_->clearLayoutList();
 979                 return;
 980         }
 981
 982         // Update the layout display
 983         if (d.toolbars_->updateLayoutList(buffer()->params().getTextClassPtr())) {
 984                 d.current_layout = buffer()->params().getTextClass().defaultLayoutName();
 985         }
 986
 987         docstring const & layout = currentWorkArea()->bufferView().cursor().
 988                 innerParagraph().layout()->name();
 989
 990         if (layout != d.current_layout) {
 991                 d.toolbars_->setLayout(layout);
 992                 d.current_layout = layout;
 993         }
 994 }
 995
 996
 997 bool GuiViewBase::isToolbarVisible(std::string const & id)
 998 {
 999         return d.toolbars_->visible(id);
1000 }
1001
1002 void GuiViewBase::updateToolbars()
1003 {
1004         WorkArea * wa = currentWorkArea();
1005         if (wa) {
1006                 bool const math =
1007                         wa->bufferView().cursor().inMathed();
1008                 bool const table =
1009                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
1010                 bool const review =
1011                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
1012                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
1013
1014                 d.toolbars_->update(math, table, review);
1015         } else
1016                 d.toolbars_->update(false, false, false);
1017
1018         // update read-only status of open dialogs.
1019         getDialogs().checkStatus();
1020 }
1021
1022
1023 ToolbarInfo * GuiViewBase::getToolbarInfo(string const & name)
1024 {
1025         return d.toolbars_->getToolbarInfo(name);
1026 }
1027
1028
1029 void GuiViewBase::toggleToolbarState(string const & name, bool allowauto)
1030 {
1031         // it is possible to get current toolbar status like this,...
1032         // but I decide to obey the order of ToolbarBackend::flags
1033         // and disregard real toolbar status.
1034         // toolbars_->saveToolbarInfo();
1035         //
1036         // toggle state on/off/auto
1037         d.toolbars_->toggleToolbarState(name, allowauto);
1038         // update toolbar
1039         updateToolbars();
1040 }
1041
1042
1043 } // namespace frontend
1044 } // namespace lyx
1045
1046 #include "GuiView_moc.cpp"