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 "debug.h"
  41 #include "FuncRequest.h"
  42 #include "Layout.h"
  43 #include "LyX.h"
  44 #include "LyXFunc.h"
  45 #include "LyXRC.h"
  46 #include "MenuBackend.h"
  47 #include "Paragraph.h"
  48 #include "Session.h"
  49 #include "version.h"
  50
  51 #include <boost/current_function.hpp>
  52
  53 #include <QAction>
  54 #include <QApplication>
  55 #include <QCloseEvent>
  56 #include <QDesktopWidget>
  57 #include <QDragEnterEvent>
  58 #include <QDropEvent>
  59 #include <QList>
  60 #include <QMenu>
  61 #include <QPainter>
  62 #include <QPixmap>
  63 #include <QPushButton>
  64 #include <QStackedWidget>
  65 #include <QStatusBar>
  66 #include <QTabBar>
  67 #include <QToolBar>
  68 #include <QTabWidget>
  69 #include <QUrl>
  70
  71 using std::endl;
  72 using std::string;
  73 using std::vector;
  74
  75 namespace lyx {
  76
  77 using support::FileName;
  78 using support::libFileSearch;
  79 using support::makeDisplayPath;
  80
  81 extern bool quitting;
  82
  83 namespace frontend {
  84
  85 namespace {
  86
  87 int const statusbar_timer_value = 3000;
  88
  89 class BackgroundWidget : public QWidget
  90 {
  91 public:
  92         BackgroundWidget(QString const & file, QString const & text)
  93         {
  94                 splash_ = new QPixmap(file);
  95                 if (!splash_) {
  96                         lyxerr << "could not load splash screen: '" << fromqstr(file) << "'" << endl;
  97                         return;
  98                 }
  99
 100                 QPainter pain(splash_);
 101                 pain.setPen(QColor(255, 255, 0));
 102                 QFont font;
 103                 // The font used to display the version info
 104                 font.setStyleHint(QFont::SansSerif);
 105                 font.setWeight(QFont::Bold);
 106                 font.setPointSize(convert<int>(lyxrc.font_sizes[Font::SIZE_LARGE]));
 107                 pain.setFont(font);
 108                 pain.drawText(260, 270, text);
 109         }
 110
 111         void paintEvent(QPaintEvent *)
 112         {
 113                 if (!splash_)
 114                         return;
 115
 116                 int x = (width() - splash_->width()) / 2;
 117                 int y = (height() - splash_->height()) / 2;
 118                 QPainter pain(this);
 119                 pain.drawPixmap(x, y, *splash_);
 120         }
 121
 122 private:
 123         QPixmap * splash_;
 124 };
 125
 126
 127 class TabWidget : public QTabWidget {
 128 public:
 129         void showBar(bool show) { tabBar()->setVisible(show); }
 130 };
 131
 132
 133 } // namespace anon
 134
 135
 136 struct GuiViewBase::GuiViewPrivate
 137 {
 138         string cur_title;
 139
 140         int posx_offset;
 141         int posy_offset;
 142
 143         TabWidget * tab_widget_;
 144         QStackedWidget * stack_widget_;
 145         BackgroundWidget * bg_widget_;
 146         /// view's menubar
 147         GuiMenubar * menubar_;
 148         /// view's toolbars
 149         GuiToolbars * toolbars_;
 150         ///
 151         docstring current_layout;
 152
 153         GuiViewPrivate() : posx_offset(0), posy_offset(0) {}
 154
 155         unsigned int smallIconSize;
 156         unsigned int normalIconSize;
 157         unsigned int bigIconSize;
 158         // static needed by "New Window"
 159         static unsigned int lastIconSize;
 160
 161         QMenu * toolBarPopup(GuiViewBase * parent)
 162         {
 163                 // FIXME: translation
 164                 QMenu * menu = new QMenu(parent);
 165                 QActionGroup * iconSizeGroup = new QActionGroup(parent);
 166
 167                 QAction * smallIcons = new QAction(iconSizeGroup);
 168                 smallIcons->setText(qt_("Small-sized icons"));
 169                 smallIcons->setCheckable(true);
 170                 QObject::connect(smallIcons, SIGNAL(triggered()), parent, SLOT(smallSizedIcons()));
 171                 menu->addAction(smallIcons);
 172
 173                 QAction * normalIcons = new QAction(iconSizeGroup);
 174                 normalIcons->setText(qt_("Normal-sized icons"));
 175                 normalIcons->setCheckable(true);
 176                 QObject::connect(normalIcons, SIGNAL(triggered()), parent, SLOT(normalSizedIcons()));
 177                 menu->addAction(normalIcons);
 178
 179                 QAction * bigIcons = new QAction(iconSizeGroup);
 180                 bigIcons->setText(qt_("Big-sized icons"));
 181                 bigIcons->setCheckable(true);
 182                 QObject::connect(bigIcons, SIGNAL(triggered()), parent, SLOT(bigSizedIcons()));
 183                 menu->addAction(bigIcons);
 184
 185                 unsigned int cur = parent->iconSize().width();
 186                 if ( cur == parent->d.smallIconSize)
 187                         smallIcons->setChecked(true);
 188                 else if (cur == parent->d.normalIconSize)
 189                         normalIcons->setChecked(true);
 190                 else if (cur == parent->d.bigIconSize)
 191                         bigIcons->setChecked(true);
 192
 193                 return menu;
 194         }
 195
 196         void initBackground()
 197         {
 198                 bg_widget_ = 0;
 199                 LYXERR(Debug::GUI) << "show banner: " << lyxrc.show_banner << endl;
 200                 /// The text to be written on top of the pixmap
 201                 QString const text = lyx_version ? QString(lyx_version) : qt_("unknown version");
 202                 FileName const file = support::libFileSearch("images", "banner", "png");
 203                 if (file.empty())
 204                         return;
 205
 206                 bg_widget_ = new BackgroundWidget(toqstr(file.absFilename()), text);
 207         }
 208
 209         void setBackground()
 210         {
 211                 if (!bg_widget_)
 212                         return;
 213
 214                 stack_widget_->setCurrentWidget(bg_widget_);
 215                 bg_widget_->setUpdatesEnabled(true);
 216         }
 217 };
 218
 219
 220 unsigned int GuiViewBase::GuiViewPrivate::lastIconSize = 0;
 221
 222
 223 GuiViewBase::GuiViewBase(int id)
 224         : QMainWindow(), LyXView(id), quitting_by_menu_(false),
 225           d(*new GuiViewPrivate)
 226 {
 227         // Qt bug? signal lastWindowClosed does not work
 228         setAttribute(Qt::WA_QuitOnClose, false);
 229         setAttribute(Qt::WA_DeleteOnClose, true);
 230
 231         // hardcode here the platform specific icon size
 232         d.smallIconSize = 14;   // scaling problems
 233         d.normalIconSize = 20;  // ok, default
 234         d.bigIconSize = 26;             // better for some math icons
 235
 236 #ifndef Q_WS_MACX
 237         // assign an icon to main form. We do not do it under Qt/Mac,
 238         // since the icon is provided in the application bundle.
 239         FileName const iconname = libFileSearch("images", "lyx", "png");
 240         if (!iconname.empty())
 241                 setWindowIcon(QPixmap(toqstr(iconname.absFilename())));
 242 #endif
 243
 244         d.tab_widget_ = new TabWidget;
 245
 246         QPushButton * closeTabButton = new QPushButton(this);
 247         FileName const file = support::libFileSearch("images", "closetab", "png");
 248         if (!file.empty()) {
 249                 QPixmap pm(toqstr(file.absFilename()));
 250                 closeTabButton->setIcon(QIcon(pm));
 251                 closeTabButton->setMaximumSize(pm.size());
 252                 closeTabButton->setFlat(true);
 253         } else {
 254                 closeTabButton->setText("Close");
 255         }
 256         closeTabButton->setCursor(Qt::ArrowCursor);
 257         closeTabButton->setToolTip(tr("Close tab"));
 258         closeTabButton->setEnabled(true);
 259
 260         QObject::connect(d.tab_widget_, SIGNAL(currentChanged(int)),
 261                         this, SLOT(currentTabChanged(int)));
 262         QObject::connect(closeTabButton, SIGNAL(clicked()),
 263                         this, SLOT(closeCurrentTab()));
 264
 265         d.tab_widget_->setCornerWidget(closeTabButton);
 266 #if QT_VERSION >= 0x040200
 267         d.tab_widget_->setUsesScrollButtons(true);
 268 #endif
 269
 270         d.initBackground();
 271         if (d.bg_widget_) {
 272                 LYXERR(Debug::GUI) << "stack widget!" << endl;
 273                 d.stack_widget_ = new QStackedWidget;
 274                 d.stack_widget_->addWidget(d.bg_widget_);
 275                 d.stack_widget_->addWidget(d.tab_widget_);
 276                 setCentralWidget(d.stack_widget_);
 277         } else {
 278                 d.stack_widget_ = 0;
 279                 setCentralWidget(d.tab_widget_);
 280         }
 281
 282         // For Drag&Drop.
 283         setAcceptDrops(true);
 284 }
 285
 286
 287 GuiViewBase::~GuiViewBase()
 288 {
 289         delete d.menubar_;
 290         delete d.toolbars_;
 291         delete &d;
 292 }
 293
 294
 295 void GuiViewBase::close()
 296 {
 297         quitting_by_menu_ = true;
 298         while (d.tab_widget_->count()) {
 299                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(0));
 300                 BOOST_ASSERT(wa);
 301                 d.tab_widget_->removeTab(0);
 302                 delete wa;
 303         }
 304         QMainWindow::close();
 305         quitting_by_menu_ = false;
 306 }
 307
 308
 309 void GuiViewBase::setFocus()
 310 {
 311         if (d.tab_widget_->count())
 312                 d.tab_widget_->currentWidget()->setFocus();
 313 }
 314
 315
 316 QMenu* GuiViewBase::createPopupMenu()
 317 {
 318         return d.toolBarPopup(this);
 319 }
 320
 321
 322 void GuiViewBase::init()
 323 {
 324         // GuiToolbars *must* be initialised before GuiMenubar.
 325         d.toolbars_ = new GuiToolbars(*this);
 326         // FIXME: GuiToolbars::init() cannot be integrated in the ctor
 327         // because LyXFunc::getStatus() needs a properly initialized
 328         // GuiToolbars object (for LFUN_TOOLBAR_TOGGLE).
 329         d.toolbars_->init();
 330         d.menubar_ = new GuiMenubar(this, menubackend);
 331
 332         statusBar()->setSizeGripEnabled(true);
 333
 334         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 335                 this, SLOT(update_view_state_qt()));
 336
 337         if (d.stack_widget_)
 338                 d.stack_widget_->setCurrentWidget(d.bg_widget_);
 339 }
 340
 341
 342 void GuiViewBase::closeEvent(QCloseEvent * close_event)
 343 {
 344         // we may have been called through the close window button
 345         // which bypasses the LFUN machinery.
 346         if (!quitting_by_menu_ && theApp()->gui().viewIds().size() == 1) {
 347                 if (!theBufferList().quitWriteAll()) {
 348                         close_event->ignore();
 349                         return;
 350                 }
 351         }
 352
 353         // Make sure that no LFUN use this close to be closed View.
 354         theLyXFunc().setLyXView(0);
 355         // Make sure the timer time out will not trigger a statusbar update.
 356         statusbar_timer_.stop();
 357
 358         theApp()->gui().unregisterView(id());
 359         if (!theApp()->gui().viewIds().empty()) {
 360                 // Just close the window and do nothing else if this is not the
 361                 // last window.
 362                 close_event->accept();
 363                 return;
 364         }
 365
 366         quitting = true;
 367
 368         // this is the place where we leave the frontend.
 369         // it is the only point at which we start quitting.
 370         saveGeometry();
 371         close_event->accept();
 372         // quit the event loop
 373         qApp->quit();
 374 }
 375
 376
 377 void GuiViewBase::dragEnterEvent(QDragEnterEvent * event)
 378 {
 379         if (event->mimeData()->hasUrls())
 380                 event->accept();
 381         /// \todo Ask lyx-devel is this is enough:
 382         /// if (event->mimeData()->hasFormat("text/plain"))
 383         ///     event->acceptProposedAction();
 384 }
 385
 386
 387 void GuiViewBase::dropEvent(QDropEvent* event)
 388 {
 389         QList<QUrl> files = event->mimeData()->urls();
 390         if (files.isEmpty())
 391                 return;
 392
 393         LYXERR(Debug::GUI) << BOOST_CURRENT_FUNCTION
 394                 << " got URLs!" << endl;
 395         for (int i = 0; i != files.size(); ++i) {
 396                 string const file = support::os::internal_path(fromqstr(
 397                         files.at(i).toLocalFile()));
 398                 if (!file.empty())
 399                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 400         }
 401 }
 402
 403
 404 void GuiViewBase::saveGeometry()
 405 {
 406         static bool done = false;
 407         if (done)
 408                 return;
 409         else
 410                 done = true;
 411
 412         // FIXME:
 413         // change the ifdef to 'geometry = normalGeometry();' only
 414         // when Trolltech has fixed the broken normalGeometry on X11:
 415         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 416         // Then also the moveEvent, resizeEvent, and the
 417         // code for floatingGeometry_ can be removed;
 418         // adjust GuiViewBase::setGeometry()
 419
 420         QRect normal_geometry;
 421         int maximized;
 422 #ifdef Q_WS_WIN
 423         normal_geometry = normalGeometry();
 424         if (isMaximized()) {
 425                 maximized = CompletelyMaximized;
 426         } else {
 427                 maximized = NotMaximized;
 428         }
 429 #else
 430         normal_geometry = updateFloatingGeometry();
 431
 432         QDesktopWidget& dw = *qApp->desktop();
 433         QRect desk = dw.availableGeometry(dw.primaryScreen());
 434         // Qt bug on Linux: load completely maximized, vert max. save-> frameGeometry().height() is wrong
 435         if (isMaximized() && desk.width() <= frameGeometry().width() && desk.height() <= frameGeometry().height()) {
 436                 maximized = CompletelyMaximized;
 437                 // maximizing does not work when the window is allready hor. or vert. maximized
 438                 // Tested only on KDE
 439                 int dh = frameGeometry().height() - height();
 440                 if (desk.height() <= normal_geometry.height() + dh)
 441                         normal_geometry.setHeight(normal_geometry.height() - 1);
 442                 int dw = frameGeometry().width() - width();
 443                 if (desk.width() <= normal_geometry.width() + dw)
 444                         normal_geometry.setWidth(normal_geometry.width() - 1);
 445         } else if (desk.height() <= frameGeometry().height()) {
 446                 maximized = VerticallyMaximized;
 447         } else if (desk.width() <= frameGeometry().width()) {
 448                 maximized = HorizontallyMaximized;
 449         } else {
 450                 maximized = NotMaximized;
 451         }
 452
 453
 454 #endif
 455         // save windows size and position
 456         Session & session = LyX::ref().session();
 457         session.sessionInfo().save("WindowWidth", convert<string>(normal_geometry.width()));
 458         session.sessionInfo().save("WindowHeight", convert<string>(normal_geometry.height()));
 459         session.sessionInfo().save("WindowMaximized", convert<string>(maximized));
 460         session.sessionInfo().save("IconSizeXY", convert<string>(iconSize().width()));
 461         if (lyxrc.geometry_xysaved) {
 462                 session.sessionInfo().save("WindowPosX", convert<string>(normal_geometry.x() + d.posx_offset));
 463                 session.sessionInfo().save("WindowPosY", convert<string>(normal_geometry.y() + d.posy_offset));
 464         }
 465         d.toolbars_->saveToolbarInfo();
 466 }
 467
 468
 469 void GuiViewBase::setGeometry(unsigned int width,
 470                           unsigned int height,
 471                           int posx, int posy,
 472                           int maximized,
 473                           unsigned int iconSizeXY,
 474                           const string & geometryArg)
 475 {
 476         // use last value (not at startup)
 477         if (d.lastIconSize != 0)
 478                 setIconSize(d.lastIconSize);
 479         else if (iconSizeXY != 0)
 480                 setIconSize(iconSizeXY);
 481         else
 482                 setIconSize(d.normalIconSize);
 483
 484         // only true when the -geometry option was NOT used
 485         if (width != 0 && height != 0) {
 486                 if (posx != -1 && posy != -1) {
 487                         // if there are startup positioning problems:
 488                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 489                         QDesktopWidget& dw = *qApp->desktop();
 490                         if (dw.isVirtualDesktop()) {
 491                                 if(!dw.geometry().contains(posx, posy)) {
 492                                         posx = 50;
 493                                         posy = 50;
 494                                 }
 495                         } else {
 496                                 // Which system doesn't use a virtual desktop?
 497                                 // TODO save also last screen number and check if it is still availabe.
 498                         }
 499 #ifdef Q_WS_WIN
 500                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 501                         QWidget::setGeometry(posx, posy, width, height);
 502 #else
 503                         resize(width, height);
 504                         move(posx, posy);
 505 #endif
 506                 } else {
 507                         resize(width, height);
 508                 }
 509
 510                 // remember original size
 511                 floatingGeometry_ = QRect(posx, posy, width, height);
 512
 513                 if (maximized != NotMaximized) {
 514                         if (maximized == CompletelyMaximized) {
 515                                 setWindowState(Qt::WindowMaximized);
 516                         } else {
 517 #ifndef Q_WS_WIN
 518                                 // TODO How to set by the window manager?
 519                                 //      setWindowState(Qt::WindowVerticallyMaximized);
 520                                 //      is not possible
 521                                 QDesktopWidget& dw = *qApp->desktop();
 522                                 QRect desk = dw.availableGeometry(dw.primaryScreen());
 523                                 if (maximized == VerticallyMaximized)
 524                                         resize(width, desk.height());
 525                                 if (maximized == HorizontallyMaximized)
 526                                         resize(desk.width(), height);
 527 #endif
 528                         }
 529                 }
 530         }
 531         else
 532         {
 533                 // FIXME: move this code into parse_geometry() (LyX.cpp)
 534 #ifdef Q_WS_WIN
 535                 int x, y;
 536                 int w, h;
 537                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 538                 re.indexIn(toqstr(geometryArg.c_str()));
 539                 w = re.cap(1).toInt();
 540                 h = re.cap(2).toInt();
 541                 x = re.cap(3).toInt();
 542                 y = re.cap(4).toInt();
 543                 QWidget::setGeometry( x, y, w, h );
 544 #else
 545                 // silence warning
 546                 (void)geometryArg;
 547 #endif
 548         }
 549
 550         d.setBackground();
 551
 552         show();
 553
 554         // For an unknown reason, the Window title update is not effective for
 555         // the second windows up until it is shown on screen (Qt bug?).
 556         updateWindowTitle();
 557
 558         // after show geometry() has changed (Qt bug?)
 559         // we compensate the drift when storing the position
 560         d.posx_offset = 0;
 561         d.posy_offset = 0;
 562         if (width != 0 && height != 0)
 563                 if (posx != -1 && posy != -1) {
 564 #ifdef Q_WS_WIN
 565                         d.posx_offset = posx - normalGeometry().x();
 566                         d.posy_offset = posy - normalGeometry().y();
 567 #else
 568 #ifndef Q_WS_MACX
 569                         if (maximized == NotMaximized) {
 570                                 d.posx_offset = posx - geometry().x();
 571                                 d.posy_offset = posy - geometry().y();
 572                         }
 573 #endif
 574 #endif
 575                 }
 576 }
 577
 578
 579 void GuiViewBase::setWindowTitle(docstring const & t, docstring const & it)
 580 {
 581         QString title = windowTitle();
 582         QString new_title = toqstr(t);
 583         if (title != new_title) {
 584                 QMainWindow::setWindowTitle(new_title);
 585                 QMainWindow::setWindowIconText(toqstr(it));
 586         }
 587         if (Buffer const * buf = buffer())
 588                 d.tab_widget_->setTabText(d.tab_widget_->currentIndex(),
 589                         toqstr(makeDisplayPath(buf->fileName(), 30)));
 590 }
 591
 592
 593 void GuiViewBase::message(docstring const & str)
 594 {
 595         statusBar()->showMessage(toqstr(str));
 596         statusbar_timer_.stop();
 597         statusbar_timer_.start(statusbar_timer_value);
 598 }
 599
 600
 601 void GuiViewBase::clearMessage()
 602 {
 603         update_view_state_qt();
 604 }
 605
 606
 607 void GuiViewBase::setIconSize(unsigned int size)
 608 {
 609         d.lastIconSize = size;
 610         QMainWindow::setIconSize(QSize(size, size));
 611 }
 612
 613
 614 void GuiViewBase::smallSizedIcons()
 615 {
 616         setIconSize(d.smallIconSize);
 617 }
 618
 619
 620 void GuiViewBase::normalSizedIcons()
 621 {
 622         setIconSize(d.normalIconSize);
 623 }
 624
 625
 626 void GuiViewBase::bigSizedIcons()
 627 {
 628         setIconSize(d.bigIconSize);
 629 }
 630
 631
 632 void GuiViewBase::update_view_state_qt()
 633 {
 634         if (!hasFocus())
 635                 return;
 636         theLyXFunc().setLyXView(this);
 637         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 638         statusbar_timer_.stop();
 639 }
 640
 641
 642 void GuiViewBase::closeCurrentTab()
 643 {
 644         dispatch(FuncRequest(LFUN_BUFFER_CLOSE));
 645 }
 646
 647
 648 void GuiViewBase::currentTabChanged(int i)
 649 {
 650         disconnectBuffer();
 651         disconnectBufferView();
 652         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 653         BOOST_ASSERT(wa);
 654         BufferView & bv = wa->bufferView();
 655         connectBufferView(bv);
 656         connectBuffer(bv.buffer());
 657         bv.updateMetrics(false);
 658         bv.cursor().fixIfBroken();
 659         wa->setUpdatesEnabled(true);
 660         wa->redraw();
 661         wa->setFocus();
 662
 663         updateToc();
 664         // Buffer-dependent dialogs should be updated or
 665         // hidden. This should go here because some dialogs (eg ToC)
 666         // require bv_->text.
 667         getDialogs().updateBufferDependent(true);
 668         updateToolbars();
 669         updateLayoutChoice();
 670         updateWindowTitle();
 671         updateStatusBar();
 672
 673         LYXERR(Debug::GUI) << "currentTabChanged " << i
 674                 << "File" << bv.buffer().fileName() << endl;
 675 }
 676
 677
 678 void GuiViewBase::updateStatusBar()
 679 {
 680         // let the user see the explicit message
 681         if (statusbar_timer_.isActive())
 682                 return;
 683
 684         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 685 }
 686
 687
 688 void GuiViewBase::activated(FuncRequest const & func)
 689 {
 690         dispatch(func);
 691 }
 692
 693
 694 bool GuiViewBase::hasFocus() const
 695 {
 696         return qApp->activeWindow() == this;
 697 }
 698
 699
 700 QRect  GuiViewBase::updateFloatingGeometry()
 701 {
 702         QDesktopWidget& dw = *qApp->desktop();
 703         QRect desk = dw.availableGeometry(dw.primaryScreen());
 704         // remember only non-maximized sizes
 705         if (!isMaximized() && desk.width() > frameGeometry().width() && desk.height() > frameGeometry().height()) {
 706                 floatingGeometry_ = QRect(x(), y(), width(), height());
 707         }
 708         return floatingGeometry_;
 709 }
 710
 711
 712 void GuiViewBase::resizeEvent(QResizeEvent *)
 713 {
 714         updateFloatingGeometry();
 715 }
 716
 717
 718 void GuiViewBase::moveEvent(QMoveEvent *)
 719 {
 720         updateFloatingGeometry();
 721 }
 722
 723
 724 bool GuiViewBase::event(QEvent * e)
 725 {
 726         switch (e->type())
 727         {
 728         // Useful debug code:
 729         //case QEvent::ActivationChange:
 730         //case QEvent::WindowDeactivate:
 731         //case QEvent::Paint:
 732         //case QEvent::Enter:
 733         //case QEvent::Leave:
 734         //case QEvent::HoverEnter:
 735         //case QEvent::HoverLeave:
 736         //case QEvent::HoverMove:
 737         //case QEvent::StatusTip:
 738         //case QEvent::DragEnter:
 739         //case QEvent::DragLeave:
 740         //case QEvent::Drop:
 741         //      break;
 742
 743         case QEvent::WindowActivate:
 744                 if (d.tab_widget_->count()) {
 745                         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(
 746                                 d.tab_widget_->currentWidget());
 747                         BOOST_ASSERT(wa);
 748                         BufferView & bv = wa->bufferView();
 749                         connectBufferView(bv);
 750                         connectBuffer(bv.buffer());
 751                         // The document structure, name and dialogs might have
 752                         // changed in another view.
 753                         updateToc();
 754                         updateWindowTitle();
 755                         getDialogs().updateBufferDependent(true);
 756                 }
 757                 return QMainWindow::event(e);
 758
 759         case QEvent::ShortcutOverride: {
 760                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 761                 if (d.tab_widget_->count() == 0) {
 762                         theLyXFunc().setLyXView(this);
 763                         KeySymbol sym;
 764                         setKeySymbol(&sym, ke);
 765                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 766                         e->accept();
 767                         return true;
 768                 }
 769                 if (ke->key() == Qt::Key_Tab || ke->key() == Qt::Key_Backtab) {
 770                         KeySymbol sym;
 771                         setKeySymbol(&sym, ke);
 772                         currentWorkArea()->processKeySym(sym, NoModifier);
 773                         e->accept();
 774                         return true;
 775                 }
 776         }
 777         default:
 778                 return QMainWindow::event(e);
 779         }
 780 }
 781
 782
 783 bool GuiViewBase::focusNextPrevChild(bool /*next*/)
 784 {
 785         setFocus();
 786         return true;
 787 }
 788
 789
 790 void GuiViewBase::showView()
 791 {
 792         QMainWindow::setWindowTitle(qt_("LyX"));
 793         QMainWindow::show();
 794         updateFloatingGeometry();
 795 }
 796
 797
 798 void GuiViewBase::busy(bool yes)
 799 {
 800         if (d.tab_widget_->count()) {
 801                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 802                 BOOST_ASSERT(wa);
 803                 wa->setUpdatesEnabled(!yes);
 804                 if (yes)
 805                         wa->stopBlinkingCursor();
 806                 else
 807                         wa->startBlinkingCursor();
 808         }
 809
 810         if (yes)
 811                 QApplication::setOverrideCursor(Qt::WaitCursor);
 812         else
 813                 QApplication::restoreOverrideCursor();
 814 }
 815
 816
 817 GuiToolbar * GuiViewBase::makeToolbar(ToolbarInfo const & tbinfo, bool newline)
 818 {
 819         GuiToolbar * toolBar = new GuiToolbar(tbinfo, *this);
 820
 821         if (tbinfo.flags & ToolbarInfo::TOP) {
 822                 if (newline)
 823                         addToolBarBreak(Qt::TopToolBarArea);
 824                 addToolBar(Qt::TopToolBarArea, toolBar);
 825         }
 826
 827         if (tbinfo.flags & ToolbarInfo::BOTTOM) {
 828 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 829 #if (QT_VERSION >= 0x040202)
 830                 if (newline)
 831                         addToolBarBreak(Qt::BottomToolBarArea);
 832 #endif
 833                 addToolBar(Qt::BottomToolBarArea, toolBar);
 834         }
 835
 836         if (tbinfo.flags & ToolbarInfo::LEFT) {
 837 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 838 #if (QT_VERSION >= 0x040202)
 839                 if (newline)
 840                         addToolBarBreak(Qt::LeftToolBarArea);
 841 #endif
 842                 addToolBar(Qt::LeftToolBarArea, toolBar);
 843         }
 844
 845         if (tbinfo.flags & ToolbarInfo::RIGHT) {
 846 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 847 #if (QT_VERSION >= 0x040202)
 848                 if (newline)
 849                         addToolBarBreak(Qt::RightToolBarArea);
 850 #endif
 851                 addToolBar(Qt::RightToolBarArea, toolBar);
 852         }
 853
 854         // The following does not work so I cannot restore to exact toolbar location
 855         /*
 856         ToolbarSection::ToolbarInfo & tbinfo = LyX::ref().session().toolbars().load(tbinfo.name);
 857         toolBar->move(tbinfo.posx, tbinfo.posy);
 858         */
 859
 860         return toolBar;
 861 }
 862
 863
 864 WorkArea * GuiViewBase::workArea(Buffer & buffer)
 865 {
 866         for (int i = 0; i != d.tab_widget_->count(); ++i) {
 867                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 868                 BOOST_ASSERT(wa);
 869                 if (&wa->bufferView().buffer() == &buffer)
 870                         return wa;
 871         }
 872         return 0;
 873 }
 874
 875
 876 WorkArea * GuiViewBase::addWorkArea(Buffer & buffer)
 877 {
 878         GuiWorkArea * wa = new GuiWorkArea(buffer, *this);
 879         wa->setUpdatesEnabled(false);
 880         d.tab_widget_->addTab(wa, toqstr(makeDisplayPath(buffer.fileName(), 30)));
 881         wa->bufferView().updateMetrics(false);
 882         if (d.stack_widget_)
 883                 d.stack_widget_->setCurrentWidget(d.tab_widget_);
 884         // Hide tabbar if there's only one tab.
 885         d.tab_widget_->showBar(d.tab_widget_->count() > 1);
 886         return wa;
 887 }
 888
 889
 890 WorkArea * GuiViewBase::currentWorkArea()
 891 {
 892         if (d.tab_widget_->count() == 0)
 893                 return 0;
 894         BOOST_ASSERT(dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget()));
 895         return dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 896 }
 897
 898
 899 WorkArea const * GuiViewBase::currentWorkArea() const
 900 {
 901         if (d.tab_widget_->count() == 0)
 902                 return 0;
 903         BOOST_ASSERT(dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget()));
 904         return dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget());
 905 }
 906
 907
 908 void GuiViewBase::setCurrentWorkArea(WorkArea * work_area)
 909 {
 910         BOOST_ASSERT(work_area);
 911
 912         // Changing work area can result from opening a file so
 913         // update the toc in any case.
 914         updateToc();
 915
 916         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(work_area);
 917         BOOST_ASSERT(wa);
 918         if (wa != d.tab_widget_->currentWidget())
 919                 // Switch to the work area.
 920                 d.tab_widget_->setCurrentWidget(wa);
 921         else
 922                 // Make sure the work area is up to date.
 923                 currentTabChanged(d.tab_widget_->currentIndex());
 924         wa->setFocus();
 925 }
 926
 927
 928 void GuiViewBase::removeWorkArea(WorkArea * work_area)
 929 {
 930         BOOST_ASSERT(work_area);
 931         if (work_area == currentWorkArea()) {
 932                 disconnectBuffer();
 933                 disconnectBufferView();
 934         }
 935
 936         // removing a work area often results from closing a file so
 937         // update the toc in any case.
 938         updateToc();
 939
 940         GuiWorkArea * gwa = dynamic_cast<GuiWorkArea *>(work_area);
 941         gwa->setUpdatesEnabled(false);
 942         BOOST_ASSERT(gwa);
 943         int index = d.tab_widget_->indexOf(gwa);
 944         d.tab_widget_->removeTab(index);
 945
 946         delete gwa;
 947
 948         if (d.tab_widget_->count()) {
 949                 // make sure the next work area is enabled.
 950                 d.tab_widget_->currentWidget()->setUpdatesEnabled(true);
 951                 // Hide tabbar if there's only one tab.
 952                 d.tab_widget_->showBar(d.tab_widget_->count() > 1);
 953                 return;
 954         }
 955
 956         getDialogs().hideBufferDependent();
 957         if (d.stack_widget_) {
 958                 // No more work area, switch to the background widget.
 959                 d.setBackground();
 960         }
 961 }
 962
 963
 964 void GuiViewBase::showMiniBuffer(bool visible)
 965 {
 966         d.toolbars_->showCommandBuffer(visible);
 967 }
 968
 969
 970 void GuiViewBase::openMenu(docstring const & name)
 971 {
 972         d.menubar_->openByName(toqstr(name));
 973 }
 974
 975
 976 void GuiViewBase::openLayoutList()
 977 {
 978         d.toolbars_->openLayoutList();
 979 }
 980
 981
 982 void GuiViewBase::updateLayoutChoice()
 983 {
 984         // Don't show any layouts without a buffer
 985         if (!buffer()) {
 986                 d.toolbars_->clearLayoutList();
 987                 return;
 988         }
 989
 990         // Update the layout display
 991         if (d.toolbars_->updateLayoutList(buffer()->params().getTextClassPtr())) {
 992                 d.current_layout = buffer()->params().getTextClass().defaultLayoutName();
 993         }
 994
 995         docstring const & layout = currentWorkArea()->bufferView().cursor().
 996                 innerParagraph().layout()->name();
 997
 998         if (layout != d.current_layout) {
 999                 d.toolbars_->setLayout(layout);
1000                 d.current_layout = layout;
1001         }
1002 }
1003
1004
1005 bool GuiViewBase::isToolbarVisible(std::string const & id)
1006 {
1007         return d.toolbars_->visible(id);
1008 }
1009
1010 void GuiViewBase::updateToolbars()
1011 {
1012         WorkArea * wa = currentWorkArea();
1013         if (wa) {
1014                 bool const math =
1015                         wa->bufferView().cursor().inMathed();
1016                 bool const table =
1017                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
1018                 bool const review =
1019                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
1020                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
1021
1022                 d.toolbars_->update(math, table, review);
1023         } else
1024                 d.toolbars_->update(false, false, false);
1025
1026         // update read-only status of open dialogs.
1027         getDialogs().checkStatus();
1028 }
1029
1030
1031 ToolbarInfo * GuiViewBase::getToolbarInfo(string const & name)
1032 {
1033         return d.toolbars_->getToolbarInfo(name);
1034 }
1035
1036
1037 void GuiViewBase::toggleToolbarState(string const & name, bool allowauto)
1038 {
1039         // it is possible to get current toolbar status like this,...
1040         // but I decide to obey the order of ToolbarBackend::flags
1041         // and disregard real toolbar status.
1042         // toolbars_->saveToolbarInfo();
1043         //
1044         // toggle state on/off/auto
1045         d.toolbars_->toggleToolbarState(name, allowauto);
1046         // update toolbar
1047         updateToolbars();
1048 }
1049
1050
1051 } // namespace frontend
1052 } // namespace lyx
1053
1054 #include "GuiView_moc.cpp"