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 #include "frontends/WorkAreaManager.h"
  31
  32 #include "support/filetools.h"
  33 #include "support/convert.h"
  34 #include "support/lstrings.h"
  35 #include "support/os.h"
  36
  37 #include "Buffer.h"
  38 #include "BufferParams.h"
  39 #include "BufferView.h"
  40 #include "BufferList.h"
  41 #include "callback.h"
  42 #include "debug.h"
  43 #include "FuncRequest.h"
  44 #include "Layout.h"
  45 #include "LyX.h"
  46 #include "LyXFunc.h"
  47 #include "LyXRC.h"
  48 #include "MenuBackend.h"
  49 #include "Paragraph.h"
  50 #include "Session.h"
  51 #include "version.h"
  52
  53 #include <boost/current_function.hpp>
  54
  55 #include <QAction>
  56 #include <QApplication>
  57 #include <QCloseEvent>
  58 #include <QDesktopWidget>
  59 #include <QDragEnterEvent>
  60 #include <QDropEvent>
  61 #include <QList>
  62 #include <QMenu>
  63 #include <QPainter>
  64 #include <QPixmap>
  65 #include <QPushButton>
  66 #include <QStackedWidget>
  67 #include <QStatusBar>
  68 #include <QTabBar>
  69 #include <QToolBar>
  70 #include <QTabWidget>
  71 #include <QUrl>
  72
  73 using std::endl;
  74 using std::string;
  75 using std::vector;
  76
  77 namespace lyx {
  78
  79 using support::FileName;
  80 using support::libFileSearch;
  81 using support::makeDisplayPath;
  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         for (int i = 0; i != d.tab_widget_->count(); ++i) {
 299                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 300                 BOOST_ASSERT(wa);
 301                 Buffer & buffer = wa->bufferView().buffer();
 302                 buffer.workAreaManager().remove(wa);
 303                 d.tab_widget_->removeTab(i);
 304                 delete wa;
 305         }
 306         QMainWindow::close();
 307         quitting_by_menu_ = false;
 308 }
 309
 310
 311 void GuiViewBase::setFocus()
 312 {
 313         if (d.tab_widget_->count())
 314                 d.tab_widget_->currentWidget()->setFocus();
 315 }
 316
 317
 318 QMenu* GuiViewBase::createPopupMenu()
 319 {
 320         return d.toolBarPopup(this);
 321 }
 322
 323
 324 void GuiViewBase::init()
 325 {
 326         // GuiToolbars *must* be initialised before GuiMenubar.
 327         d.toolbars_ = new GuiToolbars(*this);
 328         // FIXME: GuiToolbars::init() cannot be integrated in the ctor
 329         // because LyXFunc::getStatus() needs a properly initialized
 330         // GuiToolbars object (for LFUN_TOOLBAR_TOGGLE).
 331         d.toolbars_->init();
 332         d.menubar_ = new GuiMenubar(this, menubackend);
 333
 334         statusBar()->setSizeGripEnabled(true);
 335
 336         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 337                 this, SLOT(update_view_state_qt()));
 338
 339         if (d.stack_widget_)
 340                 d.stack_widget_->setCurrentWidget(d.bg_widget_);
 341 }
 342
 343
 344 void GuiViewBase::closeEvent(QCloseEvent * close_event)
 345 {
 346         // we may have been called through the close window button
 347         // which bypasses the LFUN machinery.
 348         if (!quitting_by_menu_ && theApp()->gui().viewIds().size() == 1) {
 349                 if (!theBufferList().quitWriteAll()) {
 350                         close_event->ignore();
 351                         return;
 352                 }
 353         }
 354
 355         // Make sure that no LFUN use this close to be closed View.
 356         theLyXFunc().setLyXView(0);
 357         // Make sure the timer time out will not trigger a statusbar update.
 358         statusbar_timer_.stop();
 359
 360         theApp()->gui().unregisterView(id());
 361         if (!theApp()->gui().viewIds().empty()) {
 362                 // Just close the window and do nothing else if this is not the
 363                 // last window.
 364                 close_event->accept();
 365                 return;
 366         }
 367
 368         quitting = true;
 369
 370         // this is the place where we leave the frontend.
 371         // it is the only point at which we start quitting.
 372         saveGeometry();
 373         close_event->accept();
 374         // quit the event loop
 375         qApp->quit();
 376 }
 377
 378
 379 void GuiViewBase::dragEnterEvent(QDragEnterEvent * event)
 380 {
 381         if (event->mimeData()->hasUrls())
 382                 event->accept();
 383         /// \todo Ask lyx-devel is this is enough:
 384         /// if (event->mimeData()->hasFormat("text/plain"))
 385         ///     event->acceptProposedAction();
 386 }
 387
 388
 389 void GuiViewBase::dropEvent(QDropEvent* event)
 390 {
 391         QList<QUrl> files = event->mimeData()->urls();
 392         if (files.isEmpty())
 393                 return;
 394
 395         LYXERR(Debug::GUI) << BOOST_CURRENT_FUNCTION
 396                 << " got URLs!" << endl;
 397         for (int i = 0; i != files.size(); ++i) {
 398                 string const file = support::os::internal_path(fromqstr(
 399                         files.at(i).toLocalFile()));
 400                 if (!file.empty())
 401                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 402         }
 403 }
 404
 405
 406 void GuiViewBase::saveGeometry()
 407 {
 408         static bool done = false;
 409         if (done)
 410                 return;
 411         else
 412                 done = true;
 413
 414         // FIXME:
 415         // change the ifdef to 'geometry = normalGeometry();' only
 416         // when Trolltech has fixed the broken normalGeometry on X11:
 417         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 418         // Then also the moveEvent, resizeEvent, and the
 419         // code for floatingGeometry_ can be removed;
 420         // adjust GuiViewBase::setGeometry()
 421
 422         QRect normal_geometry;
 423         int maximized;
 424 #ifdef Q_WS_WIN
 425         normal_geometry = normalGeometry();
 426         if (isMaximized()) {
 427                 maximized = CompletelyMaximized;
 428         } else {
 429                 maximized = NotMaximized;
 430         }
 431 #else
 432         normal_geometry = updateFloatingGeometry();
 433
 434         QDesktopWidget& dw = *qApp->desktop();
 435         QRect desk = dw.availableGeometry(dw.primaryScreen());
 436         // Qt bug on Linux: load completely maximized, vert max. save-> frameGeometry().height() is wrong
 437         if (isMaximized() && desk.width() <= frameGeometry().width() && desk.height() <= frameGeometry().height()) {
 438                 maximized = CompletelyMaximized;
 439                 // maximizing does not work when the window is allready hor. or vert. maximized
 440                 // Tested only on KDE
 441                 int dh = frameGeometry().height() - height();
 442                 if (desk.height() <= normal_geometry.height() + dh)
 443                         normal_geometry.setHeight(normal_geometry.height() - 1);
 444                 int dw = frameGeometry().width() - width();
 445                 if (desk.width() <= normal_geometry.width() + dw)
 446                         normal_geometry.setWidth(normal_geometry.width() - 1);
 447         } else if (desk.height() <= frameGeometry().height()) {
 448                 maximized = VerticallyMaximized;
 449         } else if (desk.width() <= frameGeometry().width()) {
 450                 maximized = HorizontallyMaximized;
 451         } else {
 452                 maximized = NotMaximized;
 453         }
 454
 455
 456 #endif
 457         // save windows size and position
 458         Session & session = LyX::ref().session();
 459         session.sessionInfo().save("WindowWidth", convert<string>(normal_geometry.width()));
 460         session.sessionInfo().save("WindowHeight", convert<string>(normal_geometry.height()));
 461         session.sessionInfo().save("WindowMaximized", convert<string>(maximized));
 462         session.sessionInfo().save("IconSizeXY", convert<string>(iconSize().width()));
 463         if (lyxrc.geometry_xysaved) {
 464                 session.sessionInfo().save("WindowPosX", convert<string>(normal_geometry.x() + d.posx_offset));
 465                 session.sessionInfo().save("WindowPosY", convert<string>(normal_geometry.y() + d.posy_offset));
 466         }
 467         d.toolbars_->saveToolbarInfo();
 468 }
 469
 470
 471 void GuiViewBase::setGeometry(unsigned int width,
 472                           unsigned int height,
 473                           int posx, int posy,
 474                           int maximized,
 475                           unsigned int iconSizeXY,
 476                           const string & geometryArg)
 477 {
 478         // use last value (not at startup)
 479         if (d.lastIconSize != 0)
 480                 setIconSize(d.lastIconSize);
 481         else if (iconSizeXY != 0)
 482                 setIconSize(iconSizeXY);
 483         else
 484                 setIconSize(d.normalIconSize);
 485
 486         // only true when the -geometry option was NOT used
 487         if (width != 0 && height != 0) {
 488                 if (posx != -1 && posy != -1) {
 489                         // if there are startup positioning problems:
 490                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 491                         QDesktopWidget& dw = *qApp->desktop();
 492                         if (dw.isVirtualDesktop()) {
 493                                 if(!dw.geometry().contains(posx, posy)) {
 494                                         posx = 50;
 495                                         posy = 50;
 496                                 }
 497                         } else {
 498                                 // Which system doesn't use a virtual desktop?
 499                                 // TODO save also last screen number and check if it is still availabe.
 500                         }
 501 #ifdef Q_WS_WIN
 502                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 503                         QWidget::setGeometry(posx, posy, width, height);
 504 #else
 505                         resize(width, height);
 506                         move(posx, posy);
 507 #endif
 508                 } else {
 509                         resize(width, height);
 510                 }
 511
 512                 // remember original size
 513                 floatingGeometry_ = QRect(posx, posy, width, height);
 514
 515                 if (maximized != NotMaximized) {
 516                         if (maximized == CompletelyMaximized) {
 517                                 setWindowState(Qt::WindowMaximized);
 518                         } else {
 519 #ifndef Q_WS_WIN
 520                                 // TODO How to set by the window manager?
 521                                 //      setWindowState(Qt::WindowVerticallyMaximized);
 522                                 //      is not possible
 523                                 QDesktopWidget& dw = *qApp->desktop();
 524                                 QRect desk = dw.availableGeometry(dw.primaryScreen());
 525                                 if (maximized == VerticallyMaximized)
 526                                         resize(width, desk.height());
 527                                 if (maximized == HorizontallyMaximized)
 528                                         resize(desk.width(), height);
 529 #endif
 530                         }
 531                 }
 532         }
 533         else
 534         {
 535                 // FIXME: move this code into parse_geometry() (LyX.cpp)
 536 #ifdef Q_WS_WIN
 537                 int x, y;
 538                 int w, h;
 539                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 540                 re.indexIn(toqstr(geometryArg.c_str()));
 541                 w = re.cap(1).toInt();
 542                 h = re.cap(2).toInt();
 543                 x = re.cap(3).toInt();
 544                 y = re.cap(4).toInt();
 545                 QWidget::setGeometry( x, y, w, h );
 546 #else
 547                 // silence warning
 548                 (void)geometryArg;
 549 #endif
 550         }
 551
 552         d.setBackground();
 553
 554         show();
 555
 556         // For an unknown reason, the Window title update is not effective for
 557         // the second windows up until it is shown on screen (Qt bug?).
 558         updateWindowTitle();
 559
 560         // after show geometry() has changed (Qt bug?)
 561         // we compensate the drift when storing the position
 562         d.posx_offset = 0;
 563         d.posy_offset = 0;
 564         if (width != 0 && height != 0)
 565                 if (posx != -1 && posy != -1) {
 566 #ifdef Q_WS_WIN
 567                         d.posx_offset = posx - normalGeometry().x();
 568                         d.posy_offset = posy - normalGeometry().y();
 569 #else
 570 #ifndef Q_WS_MACX
 571                         if (maximized == NotMaximized) {
 572                                 d.posx_offset = posx - geometry().x();
 573                                 d.posy_offset = posy - geometry().y();
 574                         }
 575 #endif
 576 #endif
 577                 }
 578 }
 579
 580
 581 void GuiViewBase::setWindowTitle(docstring const & t, docstring const & it)
 582 {
 583         QString title = windowTitle();
 584         QString new_title = toqstr(t);
 585         if (title != new_title) {
 586                 QMainWindow::setWindowTitle(new_title);
 587                 QMainWindow::setWindowIconText(toqstr(it));
 588         }
 589 }
 590
 591
 592 void GuiViewBase::message(docstring const & str)
 593 {
 594         statusBar()->showMessage(toqstr(str));
 595         statusbar_timer_.stop();
 596         statusbar_timer_.start(statusbar_timer_value);
 597 }
 598
 599
 600 void GuiViewBase::clearMessage()
 601 {
 602         update_view_state_qt();
 603 }
 604
 605
 606 void GuiViewBase::setIconSize(unsigned int size)
 607 {
 608         d.lastIconSize = size;
 609         QMainWindow::setIconSize(QSize(size, size));
 610 }
 611
 612
 613 void GuiViewBase::smallSizedIcons()
 614 {
 615         setIconSize(d.smallIconSize);
 616 }
 617
 618
 619 void GuiViewBase::normalSizedIcons()
 620 {
 621         setIconSize(d.normalIconSize);
 622 }
 623
 624
 625 void GuiViewBase::bigSizedIcons()
 626 {
 627         setIconSize(d.bigIconSize);
 628 }
 629
 630
 631 void GuiViewBase::update_view_state_qt()
 632 {
 633         if (!hasFocus())
 634                 return;
 635         theLyXFunc().setLyXView(this);
 636         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 637         statusbar_timer_.stop();
 638 }
 639
 640
 641 void GuiViewBase::closeCurrentTab()
 642 {
 643         dispatch(FuncRequest(LFUN_BUFFER_CLOSE));
 644 }
 645
 646
 647 void GuiViewBase::currentTabChanged(int i)
 648 {
 649         disconnectBuffer();
 650         disconnectBufferView();
 651         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 652         BOOST_ASSERT(wa);
 653         BufferView & bv = wa->bufferView();
 654         connectBufferView(bv);
 655         connectBuffer(bv.buffer());
 656         bv.updateMetrics(false);
 657         bv.cursor().fixIfBroken();
 658         wa->setUpdatesEnabled(true);
 659         wa->redraw();
 660         wa->setFocus();
 661
 662         updateToc();
 663         // Buffer-dependent dialogs should be updated or
 664         // hidden. This should go here because some dialogs (eg ToC)
 665         // require bv_->text.
 666         getDialogs().updateBufferDependent(true);
 667         updateToolbars();
 668         updateLayoutChoice();
 669         updateWindowTitle();
 670         updateStatusBar();
 671
 672         LYXERR(Debug::GUI) << "currentTabChanged " << i
 673                 << "File" << bv.buffer().fileName() << endl;
 674 }
 675
 676
 677 void GuiViewBase::updateStatusBar()
 678 {
 679         // let the user see the explicit message
 680         if (statusbar_timer_.isActive())
 681                 return;
 682
 683         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 684 }
 685
 686
 687 void GuiViewBase::activated(FuncRequest const & func)
 688 {
 689         dispatch(func);
 690 }
 691
 692
 693 bool GuiViewBase::hasFocus() const
 694 {
 695         return qApp->activeWindow() == this;
 696 }
 697
 698
 699 QRect  GuiViewBase::updateFloatingGeometry()
 700 {
 701         QDesktopWidget& dw = *qApp->desktop();
 702         QRect desk = dw.availableGeometry(dw.primaryScreen());
 703         // remember only non-maximized sizes
 704         if (!isMaximized() && desk.width() > frameGeometry().width() && desk.height() > frameGeometry().height()) {
 705                 floatingGeometry_ = QRect(x(), y(), width(), height());
 706         }
 707         return floatingGeometry_;
 708 }
 709
 710
 711 void GuiViewBase::resizeEvent(QResizeEvent *)
 712 {
 713         updateFloatingGeometry();
 714 }
 715
 716
 717 void GuiViewBase::moveEvent(QMoveEvent *)
 718 {
 719         updateFloatingGeometry();
 720 }
 721
 722
 723 bool GuiViewBase::event(QEvent * e)
 724 {
 725         switch (e->type())
 726         {
 727         // Useful debug code:
 728         //case QEvent::WindowActivate:
 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::ShortcutOverride: {
 744                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 745                 if (d.tab_widget_->count() == 0) {
 746                         theLyXFunc().setLyXView(this);
 747                         KeySymbol sym;
 748                         setKeySymbol(&sym, ke);
 749                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 750                         e->accept();
 751                         return true;
 752                 }
 753                 if (ke->key() == Qt::Key_Tab || ke->key() == Qt::Key_Backtab) {
 754                         KeySymbol sym;
 755                         setKeySymbol(&sym, ke);
 756                         currentWorkArea()->processKeySym(sym, key_modifier::none);
 757                         e->accept();
 758                         return true;
 759                 }
 760         }
 761         default:
 762                 return QMainWindow::event(e);
 763         }
 764 }
 765
 766
 767 bool GuiViewBase::focusNextPrevChild(bool /*next*/)
 768 {
 769         setFocus();
 770         return true;
 771 }
 772
 773
 774 void GuiViewBase::showView()
 775 {
 776         QMainWindow::setWindowTitle(qt_("LyX"));
 777         QMainWindow::show();
 778         updateFloatingGeometry();
 779 }
 780
 781
 782 void GuiViewBase::busy(bool yes)
 783 {
 784         if (d.tab_widget_->count()) {
 785                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 786                 BOOST_ASSERT(wa);
 787                 wa->setUpdatesEnabled(!yes);
 788                 if (yes)
 789                         wa->stopBlinkingCursor();
 790                 else
 791                         wa->startBlinkingCursor();
 792         }
 793
 794         if (yes)
 795                 QApplication::setOverrideCursor(Qt::WaitCursor);
 796         else
 797                 QApplication::restoreOverrideCursor();
 798 }
 799
 800
 801 GuiToolbar * GuiViewBase::makeToolbar(ToolbarInfo const & tbinfo, bool newline)
 802 {
 803         GuiToolbar * toolBar = new GuiToolbar(tbinfo, *this);
 804
 805         if (tbinfo.flags & ToolbarInfo::TOP) {
 806                 if (newline)
 807                         addToolBarBreak(Qt::TopToolBarArea);
 808                 addToolBar(Qt::TopToolBarArea, toolBar);
 809         }
 810
 811         if (tbinfo.flags & ToolbarInfo::BOTTOM) {
 812 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 813 #if (QT_VERSION >= 0x040202)
 814                 if (newline)
 815                         addToolBarBreak(Qt::BottomToolBarArea);
 816 #endif
 817                 addToolBar(Qt::BottomToolBarArea, toolBar);
 818         }
 819
 820         if (tbinfo.flags & ToolbarInfo::LEFT) {
 821 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 822 #if (QT_VERSION >= 0x040202)
 823                 if (newline)
 824                         addToolBarBreak(Qt::LeftToolBarArea);
 825 #endif
 826                 addToolBar(Qt::LeftToolBarArea, toolBar);
 827         }
 828
 829         if (tbinfo.flags & ToolbarInfo::RIGHT) {
 830 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 831 #if (QT_VERSION >= 0x040202)
 832                 if (newline)
 833                         addToolBarBreak(Qt::RightToolBarArea);
 834 #endif
 835                 addToolBar(Qt::RightToolBarArea, toolBar);
 836         }
 837
 838         // The following does not work so I cannot restore to exact toolbar location
 839         /*
 840         ToolbarSection::ToolbarInfo & tbinfo = LyX::ref().session().toolbars().load(tbinfo.name);
 841         toolBar->move(tbinfo.posx, tbinfo.posy);
 842         */
 843
 844         return toolBar;
 845 }
 846
 847
 848 WorkArea * GuiViewBase::workArea(Buffer & buffer)
 849 {
 850         for (int i = 0; i != d.tab_widget_->count(); ++i) {
 851                 GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(d.tab_widget_->widget(i));
 852                 BOOST_ASSERT(wa);
 853                 if (&wa->bufferView().buffer() == &buffer)
 854                         return wa;
 855         }
 856         return 0;
 857 }
 858
 859
 860 WorkArea * GuiViewBase::addWorkArea(Buffer & buffer)
 861 {
 862         GuiWorkArea * wa = new GuiWorkArea(buffer, *this);
 863         wa->setUpdatesEnabled(false);
 864         d.tab_widget_->addTab(wa, toqstr(makeDisplayPath(buffer.fileName(), 30)));
 865         wa->bufferView().updateMetrics(false);
 866         if (d.stack_widget_)
 867                 d.stack_widget_->setCurrentWidget(d.tab_widget_);
 868         // Hide tabbar if there's only one tab.
 869         d.tab_widget_->showBar(d.tab_widget_->count() > 1);
 870         ///
 871         buffer.workAreaManager().add(wa);
 872         return wa;
 873 }
 874
 875
 876 WorkArea * GuiViewBase::currentWorkArea()
 877 {
 878         if (d.tab_widget_->count() == 0)
 879                 return 0;
 880         BOOST_ASSERT(dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget()));
 881         return dynamic_cast<GuiWorkArea *>(d.tab_widget_->currentWidget());
 882 }
 883
 884
 885 WorkArea const * GuiViewBase::currentWorkArea() const
 886 {
 887         if (d.tab_widget_->count() == 0)
 888                 return 0;
 889         BOOST_ASSERT(dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget()));
 890         return dynamic_cast<GuiWorkArea const *>(d.tab_widget_->currentWidget());
 891 }
 892
 893
 894 void GuiViewBase::setCurrentWorkArea(WorkArea * work_area)
 895 {
 896         BOOST_ASSERT(work_area);
 897
 898         // Changing work area can result from opening a file so
 899         // update the toc in any case.
 900         updateToc();
 901
 902         GuiWorkArea * wa = dynamic_cast<GuiWorkArea *>(work_area);
 903         BOOST_ASSERT(wa);
 904         if (wa != d.tab_widget_->currentWidget())
 905                 // Switch to the work area.
 906                 d.tab_widget_->setCurrentWidget(wa);
 907         else
 908                 // Make sure the work area is up to date.
 909                 currentTabChanged(d.tab_widget_->currentIndex());
 910         wa->setFocus();
 911 }
 912
 913
 914 void GuiViewBase::removeWorkArea(WorkArea * work_area)
 915 {
 916         BOOST_ASSERT(work_area);
 917         if (work_area == currentWorkArea()) {
 918                 disconnectBuffer();
 919                 disconnectBufferView();
 920         }
 921
 922         Buffer & buffer = work_area->bufferView().buffer();
 923         buffer.workAreaManager().remove(work_area);
 924
 925         // removing a work area often results from closing a file so
 926         // update the toc in any case.
 927         updateToc();
 928
 929         GuiWorkArea * gwa = dynamic_cast<GuiWorkArea *>(work_area);
 930         gwa->setUpdatesEnabled(false);
 931         BOOST_ASSERT(gwa);
 932         int index = d.tab_widget_->indexOf(gwa);
 933         d.tab_widget_->removeTab(index);
 934
 935         delete gwa;
 936
 937         if (d.tab_widget_->count()) {
 938                 // make sure the next work area is enabled.
 939                 d.tab_widget_->currentWidget()->setUpdatesEnabled(true);
 940                 // Hide tabbar if there's only one tab.
 941                 d.tab_widget_->showBar(d.tab_widget_->count() > 1);
 942                 return;
 943         }
 944
 945         getDialogs().hideBufferDependent();
 946         if (d.stack_widget_) {
 947                 // No more work area, switch to the background widget.
 948                 d.setBackground();
 949         }
 950 }
 951
 952
 953 void GuiViewBase::showMiniBuffer(bool visible)
 954 {
 955         d.toolbars_->showCommandBuffer(visible);
 956 }
 957
 958
 959 void GuiViewBase::openMenu(docstring const & name)
 960 {
 961         d.menubar_->openByName(toqstr(name));
 962 }
 963
 964
 965 void GuiViewBase::openLayoutList()
 966 {
 967         d.toolbars_->openLayoutList();
 968 }
 969
 970
 971 void GuiViewBase::updateLayoutChoice()
 972 {
 973         // Don't show any layouts without a buffer
 974         if (!buffer()) {
 975                 d.toolbars_->clearLayoutList();
 976                 return;
 977         }
 978
 979         // Update the layout display
 980         if (d.toolbars_->updateLayoutList(buffer()->params().getTextClassPtr())) {
 981                 d.current_layout = buffer()->params().getTextClass().defaultLayoutName();
 982         }
 983
 984         docstring const & layout = currentWorkArea()->bufferView().cursor().
 985                 innerParagraph().layout()->name();
 986
 987         if (layout != d.current_layout) {
 988                 d.toolbars_->setLayout(layout);
 989                 d.current_layout = layout;
 990         }
 991 }
 992
 993
 994 bool GuiViewBase::isToolbarVisible(std::string const & id)
 995 {
 996         return d.toolbars_->visible(id);
 997 }
 998
 999 void GuiViewBase::updateToolbars()
1000 {
1001         WorkArea * wa = currentWorkArea();
1002         if (wa) {
1003                 bool const math =
1004                         wa->bufferView().cursor().inMathed();
1005                 bool const table =
1006                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
1007                 bool const review =
1008                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
1009                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
1010
1011                 d.toolbars_->update(math, table, review);
1012         } else
1013                 d.toolbars_->update(false, false, false);
1014
1015         // update read-only status of open dialogs.
1016         getDialogs().checkStatus();
1017 }
1018
1019
1020 ToolbarInfo * GuiViewBase::getToolbarInfo(string const & name)
1021 {
1022         return d.toolbars_->getToolbarInfo(name);
1023 }
1024
1025
1026 void GuiViewBase::toggleToolbarState(string const & name, bool allowauto)
1027 {
1028         // it is possible to get current toolbar status like this,...
1029         // but I decide to obey the order of ToolbarBackend::flags
1030         // and disregard real toolbar status.
1031         // toolbars_->saveToolbarInfo();
1032         //
1033         // toggle state on/off/auto
1034         d.toolbars_->toggleToolbarState(name, allowauto);
1035         // update toolbar
1036         updateToolbars();
1037 }
1038
1039
1040 } // namespace frontend
1041 } // namespace lyx
1042
1043 #include "GuiView_moc.cpp"