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 "Dialogs.h"
  25 #include "Gui.h"
  26
  27 #include "qt_helpers.h"
  28
  29 #include "frontends/Application.h"
  30 #include "frontends/Dialogs.h"
  31 #include "frontends/Gui.h"
  32
  33 #include "support/filetools.h"
  34 #include "support/convert.h"
  35 #include "support/lstrings.h"
  36 #include "support/os.h"
  37
  38 #include "buffer_funcs.h"
  39 #include "Buffer.h"
  40 #include "BufferList.h"
  41 #include "BufferParams.h"
  42 #include "BufferView.h"
  43 #include "Cursor.h"
  44 #include "debug.h"
  45 #include "ErrorList.h"
  46 #include "FuncRequest.h"
  47 #include "gettext.h"
  48 #include "Intl.h"
  49 #include "Layout.h"
  50 #include "LyXFunc.h"
  51 #include "LyX.h"
  52 #include "LyXRC.h"
  53 #include "MenuBackend.h"
  54 #include "Paragraph.h"
  55 #include "Session.h"
  56 #include "TextClass.h"
  57 #include "Text.h"
  58 #include "ToolbarBackend.h"
  59 #include "version.h"
  60
  61 #include "support/lstrings.h"
  62 #include "support/filetools.h" // OnlyFilename()
  63 #include "support/Timeout.h"
  64
  65 #include <QAction>
  66 #include <QApplication>
  67 #include <QCloseEvent>
  68 #include <QDesktopWidget>
  69 #include <QDragEnterEvent>
  70 #include <QDropEvent>
  71 #include <QList>
  72 #include <QMenu>
  73 #include <QPainter>
  74 #include <QPixmap>
  75 #include <QPushButton>
  76 #include <QSplitter>
  77 #include <QStackedWidget>
  78 #include <QStatusBar>
  79 #include <QToolBar>
  80 #include <QUrl>
  81
  82 #include <boost/bind.hpp>
  83 #include <boost/current_function.hpp>
  84
  85 #ifdef HAVE_SYS_TIME_H
  86 # include <sys/time.h>
  87 #endif
  88 #ifdef HAVE_UNISTD_H
  89 # include <unistd.h>
  90 #endif
  91
  92 using std::endl;
  93 using std::string;
  94 using std::vector;
  95
  96 namespace lyx {
  97
  98 extern bool quitting;
  99
 100 namespace frontend {
 101
 102 using support::bformat;
 103 using support::FileName;
 104 using support::makeDisplayPath;
 105 using support::onlyFilename;
 106
 107 namespace {
 108
 109 int const statusbar_timer_value = 3000;
 110
 111 class BackgroundWidget : public QWidget
 112 {
 113 public:
 114         BackgroundWidget(QString const & file, QString const & text)
 115         {
 116                 splash_ = new QPixmap(file);
 117                 if (!splash_) {
 118                         lyxerr << "could not load splash screen: '" << fromqstr(file) << "'" << endl;
 119                         return;
 120                 }
 121
 122                 QPainter pain(splash_);
 123                 pain.setPen(QColor(255, 255, 0));
 124                 QFont font;
 125                 // The font used to display the version info
 126                 font.setStyleHint(QFont::SansSerif);
 127                 font.setWeight(QFont::Bold);
 128                 font.setPointSize(convert<int>(lyxrc.font_sizes[FONT_SIZE_LARGE]));
 129                 pain.setFont(font);
 130                 pain.drawText(260, 270, text);
 131         }
 132
 133         void paintEvent(QPaintEvent *)
 134         {
 135                 if (!splash_)
 136                         return;
 137
 138                 int x = (width() - splash_->width()) / 2;
 139                 int y = (height() - splash_->height()) / 2;
 140                 QPainter pain(this);
 141                 pain.drawPixmap(x, y, *splash_);
 142         }
 143
 144 private:
 145         QPixmap * splash_;
 146 };
 147
 148 } // namespace anon
 149
 150
 151 struct GuiView::GuiViewPrivate
 152 {
 153         GuiViewPrivate()
 154                 : current_work_area_(0), posx_offset(0), posy_offset(0)
 155         {}
 156
 157         ~GuiViewPrivate()
 158         {
 159                 delete splitter_;
 160                 delete bg_widget_;
 161                 delete stack_widget_;
 162                 delete menubar_;
 163                 delete toolbars_;
 164         }
 165
 166         unsigned int smallIconSize;
 167         unsigned int normalIconSize;
 168         unsigned int bigIconSize;
 169         // static needed by "New Window"
 170         static unsigned int lastIconSize;
 171
 172         QMenu * toolBarPopup(GuiView * parent)
 173         {
 174                 // FIXME: translation
 175                 QMenu * menu = new QMenu(parent);
 176                 QActionGroup * iconSizeGroup = new QActionGroup(parent);
 177
 178                 QAction * smallIcons = new QAction(iconSizeGroup);
 179                 smallIcons->setText(qt_("Small-sized icons"));
 180                 smallIcons->setCheckable(true);
 181                 QObject::connect(smallIcons, SIGNAL(triggered()),
 182                         parent, SLOT(smallSizedIcons()));
 183                 menu->addAction(smallIcons);
 184
 185                 QAction * normalIcons = new QAction(iconSizeGroup);
 186                 normalIcons->setText(qt_("Normal-sized icons"));
 187                 normalIcons->setCheckable(true);
 188                 QObject::connect(normalIcons, SIGNAL(triggered()),
 189                         parent, SLOT(normalSizedIcons()));
 190                 menu->addAction(normalIcons);
 191
 192                 QAction * bigIcons = new QAction(iconSizeGroup);
 193                 bigIcons->setText(qt_("Big-sized icons"));
 194                 bigIcons->setCheckable(true);
 195                 QObject::connect(bigIcons, SIGNAL(triggered()),
 196                         parent, SLOT(bigSizedIcons()));
 197                 menu->addAction(bigIcons);
 198
 199                 unsigned int cur = parent->iconSize().width();
 200                 if ( cur == parent->d.smallIconSize)
 201                         smallIcons->setChecked(true);
 202                 else if (cur == parent->d.normalIconSize)
 203                         normalIcons->setChecked(true);
 204                 else if (cur == parent->d.bigIconSize)
 205                         bigIcons->setChecked(true);
 206
 207                 return menu;
 208         }
 209
 210         void initBackground()
 211         {
 212                 LYXERR(Debug::GUI) << "show banner: " << lyxrc.show_banner << endl;
 213                 /// The text to be written on top of the pixmap
 214                 QString const text = lyx_version ? QString(lyx_version) : qt_("unknown version");
 215                 bg_widget_ = new BackgroundWidget(":/images/banner.png", text);
 216         }
 217
 218         void setBackground()
 219         {
 220                 stack_widget_->setCurrentWidget(bg_widget_);
 221                 bg_widget_->setUpdatesEnabled(true);
 222         }
 223
 224         TabWorkArea * tabWorkArea(int i)
 225         {
 226                 return dynamic_cast<TabWorkArea *>(splitter_->widget(i));
 227         }
 228
 229         TabWorkArea * currentTabWorkArea()
 230         {
 231                 if (splitter_->count() == 1)
 232                         // The first TabWorkArea is always the first one, if any.
 233                         return tabWorkArea(0);
 234
 235                 TabWorkArea * tab_widget = 0;
 236                 for (int i = 0; i != splitter_->count(); ++i) {
 237                         QWidget * w = splitter_->widget(i);
 238                         if (!w->hasFocus())
 239                                 continue;
 240                         tab_widget = dynamic_cast<TabWorkArea *>(w);
 241                         if (tab_widget)
 242                                 break;
 243                 }
 244
 245                 return tab_widget;
 246         }
 247
 248 public:
 249         ///
 250         string cur_title;
 251
 252         GuiWorkArea * current_work_area_;
 253         int posx_offset;
 254         int posy_offset;
 255
 256         QSplitter * splitter_;
 257         QStackedWidget * stack_widget_;
 258         BackgroundWidget * bg_widget_;
 259         /// view's menubar
 260         GuiMenubar * menubar_;
 261         /// view's toolbars
 262         GuiToolbars * toolbars_;
 263         ///
 264         docstring current_layout;
 265 };
 266
 267
 268 unsigned int GuiView::GuiViewPrivate::lastIconSize = 0;
 269
 270
 271 GuiView::GuiView(int id)
 272         : QMainWindow(), LyXView(id),
 273           d(*new GuiViewPrivate),
 274                 quitting_by_menu_(false),
 275                 autosave_timeout_(new Timeout(5000)),
 276           dialogs_(new Dialogs(*this))
 277 {
 278         // Start autosave timer
 279         if (lyxrc.autosave) {
 280                 autosave_timeout_->timeout.connect(boost::bind(&GuiView::autoSave, this));
 281                 autosave_timeout_->setTimeout(lyxrc.autosave * 1000);
 282                 autosave_timeout_->start();
 283         }
 284
 285         // Qt bug? signal lastWindowClosed does not work
 286         setAttribute(Qt::WA_QuitOnClose, false);
 287         setAttribute(Qt::WA_DeleteOnClose, true);
 288
 289         // hardcode here the platform specific icon size
 290         d.smallIconSize = 14;   // scaling problems
 291         d.normalIconSize = 20;  // ok, default
 292         d.bigIconSize = 26;             // better for some math icons
 293
 294 #ifndef Q_WS_MACX
 295         // assign an icon to main form. We do not do it under Qt/Mac,
 296         // since the icon is provided in the application bundle.
 297         setWindowIcon(QPixmap(":/images/lyx.png"));
 298 #endif
 299
 300
 301         d.splitter_ = new QSplitter;
 302
 303         d.initBackground();
 304         LYXERR(Debug::GUI) << "stack widget!" << endl;
 305         d.stack_widget_ = new QStackedWidget;
 306         d.stack_widget_->addWidget(d.bg_widget_);
 307         d.stack_widget_->addWidget(d.splitter_);
 308         setCentralWidget(d.stack_widget_);
 309
 310         // For Drag&Drop.
 311         setAcceptDrops(true);
 312 }
 313
 314
 315 GuiView::~GuiView()
 316 {
 317         delete dialogs_;
 318         delete autosave_timeout_;
 319         delete &d;
 320 }
 321
 322
 323 void GuiView::close()
 324 {
 325         quitting_by_menu_ = true;
 326         d.current_work_area_ = 0;
 327         for (int i = 0; i != d.splitter_->count(); ++i) {
 328                 TabWorkArea * twa = d.tabWorkArea(i);
 329                 if (twa)
 330                         twa->closeAll();
 331         }
 332         QMainWindow::close();
 333         quitting_by_menu_ = false;
 334 }
 335
 336
 337 void GuiView::setFocus()
 338 {
 339         if (d.current_work_area_)
 340                 d.current_work_area_->setFocus();
 341         else
 342                 QWidget::setFocus();
 343 }
 344
 345
 346 QMenu* GuiView::createPopupMenu()
 347 {
 348         return d.toolBarPopup(this);
 349 }
 350
 351
 352 void GuiView::init()
 353 {
 354         // GuiToolbars *must* be initialised before GuiMenubar.
 355         d.toolbars_ = new GuiToolbars(*this);
 356         // FIXME: GuiToolbars::init() cannot be integrated in the ctor
 357         // because LyXFunc::getStatus() needs a properly initialized
 358         // GuiToolbars object (for LFUN_TOOLBAR_TOGGLE).
 359         d.toolbars_->init();
 360         d.menubar_ = new GuiMenubar(this, menubackend);
 361
 362         statusBar()->setSizeGripEnabled(true);
 363
 364         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 365                 this, SLOT(clearMessage()));
 366
 367         d.setBackground();
 368 }
 369
 370
 371 void GuiView::closeEvent(QCloseEvent * close_event)
 372 {
 373         // we may have been called through the close window button
 374         // which bypasses the LFUN machinery.
 375         if (!quitting_by_menu_ && theApp()->gui().viewIds().size() == 1) {
 376                 if (!theBufferList().quitWriteAll()) {
 377                         close_event->ignore();
 378                         return;
 379                 }
 380         }
 381
 382         // Make sure that no LFUN use this close to be closed View.
 383         theLyXFunc().setLyXView(0);
 384         // Make sure the timer time out will not trigger a statusbar update.
 385         statusbar_timer_.stop();
 386
 387         theApp()->gui().unregisterView(id());
 388         if (!theApp()->gui().viewIds().empty()) {
 389                 // Just close the window and do nothing else if this is not the
 390                 // last window.
 391                 close_event->accept();
 392                 return;
 393         }
 394
 395         quitting = true;
 396
 397         // this is the place where we leave the frontend.
 398         // it is the only point at which we start quitting.
 399         saveGeometry();
 400         close_event->accept();
 401         // quit the event loop
 402         qApp->quit();
 403 }
 404
 405
 406 void GuiView::dragEnterEvent(QDragEnterEvent * event)
 407 {
 408         if (event->mimeData()->hasUrls())
 409                 event->accept();
 410         /// \todo Ask lyx-devel is this is enough:
 411         /// if (event->mimeData()->hasFormat("text/plain"))
 412         ///     event->acceptProposedAction();
 413 }
 414
 415
 416 void GuiView::dropEvent(QDropEvent* event)
 417 {
 418         QList<QUrl> files = event->mimeData()->urls();
 419         if (files.isEmpty())
 420                 return;
 421
 422         LYXERR(Debug::GUI) << BOOST_CURRENT_FUNCTION
 423                 << " got URLs!" << endl;
 424         for (int i = 0; i != files.size(); ++i) {
 425                 string const file = support::os::internal_path(fromqstr(
 426                         files.at(i).toLocalFile()));
 427                 if (!file.empty())
 428                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 429         }
 430 }
 431
 432
 433 void GuiView::saveGeometry()
 434 {
 435         static bool done = false;
 436         if (done)
 437                 return;
 438         else
 439                 done = true;
 440
 441         // FIXME:
 442         // change the ifdef to 'geometry = normalGeometry();' only
 443         // when Trolltech has fixed the broken normalGeometry on X11:
 444         // http://www.trolltech.com/developer/task-tracker/index_html?id=119684+&method=entry
 445         // Then also the moveEvent, resizeEvent, and the
 446         // code for floatingGeometry_ can be removed;
 447         // adjust GuiView::setGeometry()
 448
 449         QRect normal_geometry;
 450         Maximized maximized;
 451 #ifdef Q_WS_WIN
 452         normal_geometry = normalGeometry();
 453         if (isMaximized()) {
 454                 maximized = CompletelyMaximized;
 455         } else {
 456                 maximized = NotMaximized;
 457         }
 458 #else
 459         normal_geometry = updateFloatingGeometry();
 460
 461         QDesktopWidget& dw = *qApp->desktop();
 462         QRect desk = dw.availableGeometry(dw.primaryScreen());
 463         // Qt bug on Linux: load completely maximized, vert max. save-> frameGeometry().height() is wrong
 464         if (isMaximized() && desk.width() <= frameGeometry().width() && desk.height() <= frameGeometry().height()) {
 465                 maximized = CompletelyMaximized;
 466                 // maximizing does not work when the window is allready hor. or vert. maximized
 467                 // Tested only on KDE
 468                 int dh = frameGeometry().height() - height();
 469                 if (desk.height() <= normal_geometry.height() + dh)
 470                         normal_geometry.setHeight(normal_geometry.height() - 1);
 471                 int dw = frameGeometry().width() - width();
 472                 if (desk.width() <= normal_geometry.width() + dw)
 473                         normal_geometry.setWidth(normal_geometry.width() - 1);
 474         } else if (desk.height() <= frameGeometry().height()) {
 475                 maximized = VerticallyMaximized;
 476         } else if (desk.width() <= frameGeometry().width()) {
 477                 maximized = HorizontallyMaximized;
 478         } else {
 479                 maximized = NotMaximized;
 480         }
 481 #endif
 482
 483         // save windows size and position
 484         SessionInfoSection & info = LyX::ref().session().sessionInfo();
 485         info.save("WindowWidth", convert<string>(normal_geometry.width()));
 486         info.save("WindowHeight", convert<string>(normal_geometry.height()));
 487         info.save("WindowMaximized", convert<string>(int(maximized)));
 488         info.save("IconSizeXY", convert<string>(iconSize().width()));
 489         if (lyxrc.geometry_xysaved) {
 490                 info.save("WindowPosX", convert<string>(normal_geometry.x() + d.posx_offset));
 491                 info.save("WindowPosY", convert<string>(normal_geometry.y() + d.posy_offset));
 492         }
 493         d.toolbars_->saveToolbarInfo();
 494 }
 495
 496
 497 void GuiView::setGeometry(unsigned int width,
 498                           unsigned int height,
 499                           int posx, int posy,
 500                           GuiView::Maximized maximized,
 501                           unsigned int iconSizeXY,
 502                           const string & geometryArg)
 503 {
 504         // use last value (not at startup)
 505         if (d.lastIconSize != 0)
 506                 setIconSize(d.lastIconSize);
 507         else if (iconSizeXY != 0)
 508                 setIconSize(iconSizeXY);
 509         else
 510                 setIconSize(d.normalIconSize);
 511
 512         // only true when the -geometry option was NOT used
 513         if (width != 0 && height != 0) {
 514                 if (posx != -1 && posy != -1) {
 515                         // if there are startup positioning problems:
 516                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 517                         QDesktopWidget& dw = *qApp->desktop();
 518                         if (dw.isVirtualDesktop()) {
 519                                 if(!dw.geometry().contains(posx, posy)) {
 520                                         posx = 50;
 521                                         posy = 50;
 522                                 }
 523                         } else {
 524                                 // Which system doesn't use a virtual desktop?
 525                                 // TODO save also last screen number and check if it is still availabe.
 526                         }
 527 #ifdef Q_WS_WIN
 528                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 529                         QWidget::setGeometry(posx, posy, width, height);
 530 #else
 531                         resize(width, height);
 532                         move(posx, posy);
 533 #endif
 534                 } else {
 535                         resize(width, height);
 536                 }
 537
 538                 // remember original size
 539                 floatingGeometry_ = QRect(posx, posy, width, height);
 540
 541                 if (maximized != NotMaximized) {
 542                         if (maximized == CompletelyMaximized) {
 543                                 setWindowState(Qt::WindowMaximized);
 544                         } else {
 545 #ifndef Q_WS_WIN
 546                                 // TODO How to set by the window manager?
 547                                 //      setWindowState(Qt::WindowVerticallyMaximized);
 548                                 //      is not possible
 549                                 QDesktopWidget& dw = *qApp->desktop();
 550                                 QRect desk = dw.availableGeometry(dw.primaryScreen());
 551                                 if (maximized == VerticallyMaximized)
 552                                         resize(width, desk.height());
 553                                 if (maximized == HorizontallyMaximized)
 554                                         resize(desk.width(), height);
 555 #endif
 556                         }
 557                 }
 558         }
 559         else
 560         {
 561                 // FIXME: move this code into parse_geometry() (LyX.cpp)
 562 #ifdef Q_WS_WIN
 563                 int x, y;
 564                 int w, h;
 565                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 566                 re.indexIn(toqstr(geometryArg.c_str()));
 567                 w = re.cap(1).toInt();
 568                 h = re.cap(2).toInt();
 569                 x = re.cap(3).toInt();
 570                 y = re.cap(4).toInt();
 571                 QWidget::setGeometry( x, y, w, h );
 572 #else
 573                 // silence warning
 574                 (void)geometryArg;
 575 #endif
 576         }
 577
 578         d.setBackground();
 579
 580         show();
 581
 582         // after show geometry() has changed (Qt bug?)
 583         // we compensate the drift when storing the position
 584         d.posx_offset = 0;
 585         d.posy_offset = 0;
 586         if (width != 0 && height != 0)
 587                 if (posx != -1 && posy != -1) {
 588 #ifdef Q_WS_WIN
 589                         d.posx_offset = posx - normalGeometry().x();
 590                         d.posy_offset = posy - normalGeometry().y();
 591 #else
 592 #ifndef Q_WS_MACX
 593                         if (maximized == NotMaximized) {
 594                                 d.posx_offset = posx - geometry().x();
 595                                 d.posy_offset = posy - geometry().y();
 596                         }
 597 #endif
 598 #endif
 599                 }
 600 }
 601
 602
 603 void GuiView::message(docstring const & str)
 604 {
 605         statusBar()->showMessage(toqstr(str));
 606         statusbar_timer_.stop();
 607         statusbar_timer_.start(statusbar_timer_value);
 608 }
 609
 610
 611 void GuiView::setIconSize(unsigned int size)
 612 {
 613         d.lastIconSize = size;
 614         QMainWindow::setIconSize(QSize(size, size));
 615 }
 616
 617
 618 void GuiView::smallSizedIcons()
 619 {
 620         setIconSize(d.smallIconSize);
 621 }
 622
 623
 624 void GuiView::normalSizedIcons()
 625 {
 626         setIconSize(d.normalIconSize);
 627 }
 628
 629
 630 void GuiView::bigSizedIcons()
 631 {
 632         setIconSize(d.bigIconSize);
 633 }
 634
 635
 636 void GuiView::clearMessage()
 637 {
 638         if (!hasFocus())
 639                 return;
 640         theLyXFunc().setLyXView(this);
 641         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 642         statusbar_timer_.stop();
 643 }
 644
 645
 646 void GuiView::updateWindowTitle(GuiWorkArea * wa)
 647 {
 648         if (wa != d.current_work_area_)
 649                 return;
 650         setWindowTitle(qt_("LyX: ") + wa->windowTitle());
 651         setWindowIconText(wa->windowIconText());
 652 }
 653
 654
 655 void GuiView::on_currentWorkAreaChanged(GuiWorkArea * wa)
 656 {
 657         disconnectBuffer();
 658         disconnectBufferView();
 659         connectBufferView(wa->bufferView());
 660         connectBuffer(wa->bufferView().buffer());
 661         d.current_work_area_ = wa;
 662         QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
 663                 this, SLOT(updateWindowTitle(GuiWorkArea *)));
 664         updateWindowTitle(wa);
 665
 666         updateToc();
 667         // Buffer-dependent dialogs should be updated or
 668         // hidden. This should go here because some dialogs (eg ToC)
 669         // require bv_->text.
 670         dialogs_->updateBufferDependent(true);
 671         updateToolbars();
 672         updateLayoutChoice(false);
 673         updateStatusBar();
 674 }
 675
 676
 677 void GuiView::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 bool GuiView::hasFocus() const
 688 {
 689         return qApp->activeWindow() == this;
 690 }
 691
 692
 693 QRect  GuiView::updateFloatingGeometry()
 694 {
 695         QDesktopWidget& dw = *qApp->desktop();
 696         QRect desk = dw.availableGeometry(dw.primaryScreen());
 697         // remember only non-maximized sizes
 698         if (!isMaximized() && desk.width() > frameGeometry().width() && desk.height() > frameGeometry().height()) {
 699                 floatingGeometry_ = QRect(x(), y(), width(), height());
 700         }
 701         return floatingGeometry_;
 702 }
 703
 704
 705 void GuiView::resizeEvent(QResizeEvent *)
 706 {
 707         updateFloatingGeometry();
 708 }
 709
 710
 711 void GuiView::moveEvent(QMoveEvent *)
 712 {
 713         updateFloatingGeometry();
 714 }
 715
 716
 717 bool GuiView::event(QEvent * e)
 718 {
 719         switch (e->type())
 720         {
 721         // Useful debug code:
 722         //case QEvent::ActivationChange:
 723         //case QEvent::WindowDeactivate:
 724         //case QEvent::Paint:
 725         //case QEvent::Enter:
 726         //case QEvent::Leave:
 727         //case QEvent::HoverEnter:
 728         //case QEvent::HoverLeave:
 729         //case QEvent::HoverMove:
 730         //case QEvent::StatusTip:
 731         //case QEvent::DragEnter:
 732         //case QEvent::DragLeave:
 733         //case QEvent::Drop:
 734         //      break;
 735
 736         case QEvent::WindowActivate: {
 737                 theApp()->setCurrentView(*this);
 738                 if (d.current_work_area_) {
 739                         BufferView & bv = d.current_work_area_->bufferView();
 740                         connectBufferView(bv);
 741                         connectBuffer(bv.buffer());
 742                         // The document structure, name and dialogs might have
 743                         // changed in another view.
 744                         dialogs_->updateBufferDependent(true);
 745                 } else {
 746                         setWindowTitle(qt_("LyX"));
 747                         setWindowIconText(qt_("LyX"));
 748                 }
 749                 return QMainWindow::event(e);
 750         }
 751         case QEvent::ShortcutOverride: {
 752                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 753                 if (!d.current_work_area_) {
 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                         d.current_work_area_->processKeySym(sym, NoModifier);
 765                         e->accept();
 766                         return true;
 767                 }
 768         }
 769         default:
 770                 return QMainWindow::event(e);
 771         }
 772 }
 773
 774
 775 bool GuiView::focusNextPrevChild(bool /*next*/)
 776 {
 777         setFocus();
 778         return true;
 779 }
 780
 781
 782 void GuiView::setBusy(bool yes)
 783 {
 784         if (d.current_work_area_) {
 785                 d.current_work_area_->setUpdatesEnabled(!yes);
 786                 if (yes)
 787                         d.current_work_area_->stopBlinkingCursor();
 788                 else
 789                         d.current_work_area_->startBlinkingCursor();
 790         }
 791
 792         if (yes)
 793                 QApplication::setOverrideCursor(Qt::WaitCursor);
 794         else
 795                 QApplication::restoreOverrideCursor();
 796 }
 797
 798
 799 GuiToolbar * GuiView::makeToolbar(ToolbarInfo const & tbinfo, bool newline)
 800 {
 801         GuiToolbar * toolBar = new GuiToolbar(tbinfo, *this);
 802
 803         if (tbinfo.flags & ToolbarInfo::TOP) {
 804                 if (newline)
 805                         addToolBarBreak(Qt::TopToolBarArea);
 806                 addToolBar(Qt::TopToolBarArea, toolBar);
 807         }
 808
 809         if (tbinfo.flags & ToolbarInfo::BOTTOM) {
 810 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 811 #if (QT_VERSION >= 0x040202)
 812                 if (newline)
 813                         addToolBarBreak(Qt::BottomToolBarArea);
 814 #endif
 815                 addToolBar(Qt::BottomToolBarArea, toolBar);
 816         }
 817
 818         if (tbinfo.flags & ToolbarInfo::LEFT) {
 819 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 820 #if (QT_VERSION >= 0x040202)
 821                 if (newline)
 822                         addToolBarBreak(Qt::LeftToolBarArea);
 823 #endif
 824                 addToolBar(Qt::LeftToolBarArea, toolBar);
 825         }
 826
 827         if (tbinfo.flags & ToolbarInfo::RIGHT) {
 828 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 829 #if (QT_VERSION >= 0x040202)
 830                 if (newline)
 831                         addToolBarBreak(Qt::RightToolBarArea);
 832 #endif
 833                 addToolBar(Qt::RightToolBarArea, toolBar);
 834         }
 835
 836         // The following does not work so I cannot restore to exact toolbar location
 837         /*
 838         ToolbarSection::ToolbarInfo & tbinfo = LyX::ref().session().toolbars().load(tbinfo.name);
 839         toolBar->move(tbinfo.posx, tbinfo.posy);
 840         */
 841
 842         return toolBar;
 843 }
 844
 845
 846 GuiWorkArea * GuiView::workArea(Buffer & buffer)
 847 {
 848         for (int i = 0; i != d.splitter_->count(); ++i) {
 849                 GuiWorkArea * wa = d.tabWorkArea(i)->workArea(buffer);
 850                 if (wa)
 851                         return wa;
 852         }
 853         return 0;
 854 }
 855
 856
 857 GuiWorkArea * GuiView::addWorkArea(Buffer & buffer)
 858 {
 859         GuiWorkArea * wa = new GuiWorkArea(buffer, *this);
 860         wa->setUpdatesEnabled(false);
 861
 862         // Automatically create a TabWorkArea if there are none yet.
 863         if (!d.splitter_->count())
 864                 addTabWorkArea();
 865
 866         TabWorkArea * tab_widget = d.currentTabWorkArea();
 867         tab_widget->addTab(wa, wa->windowTitle());
 868         QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
 869                 tab_widget, SLOT(updateTabText(GuiWorkArea *)));
 870
 871         wa->bufferView().updateMetrics();
 872
 873         // Hide tabbar if there's only one tab.
 874         tab_widget->showBar(tab_widget->count() > 1);
 875         return wa;
 876 }
 877
 878
 879 void GuiView::addTabWorkArea()
 880 {
 881         TabWorkArea * twa = new TabWorkArea;
 882         QObject::connect(twa, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
 883                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
 884         d.splitter_->addWidget(twa);
 885         d.stack_widget_->setCurrentWidget(d.splitter_);
 886 }
 887
 888
 889 GuiWorkArea const * GuiView::currentWorkArea() const
 890 {
 891         return d.current_work_area_;
 892 }
 893
 894
 895 void GuiView::setCurrentWorkArea(GuiWorkArea * work_area)
 896 {
 897         BOOST_ASSERT(work_area);
 898
 899         // Changing work area can result from opening a file so
 900         // update the toc in any case.
 901         updateToc();
 902
 903         GuiWorkArea * wa = static_cast<GuiWorkArea *>(work_area);
 904         d.current_work_area_ = wa;
 905         for (int i = 0; i != d.splitter_->count(); ++i) {
 906                 if (d.tabWorkArea(i)->setCurrentWorkArea(wa))
 907                         return;
 908         }
 909 }
 910
 911
 912 void GuiView::removeWorkArea(GuiWorkArea * work_area)
 913 {
 914         BOOST_ASSERT(work_area);
 915         GuiWorkArea * gwa = static_cast<GuiWorkArea *>(work_area);
 916         if (gwa == d.current_work_area_) {
 917                 disconnectBuffer();
 918                 disconnectBufferView();
 919                 dialogs_->hideBufferDependent();
 920                 d.current_work_area_ = 0;
 921         }
 922
 923         // removing a work area often results from closing a file so
 924         // update the toc in any case.
 925         updateToc();
 926
 927         for (int i = 0; i != d.splitter_->count(); ++i) {
 928                 TabWorkArea * twa = d.tabWorkArea(i);
 929                 if (!twa->removeWorkArea(gwa))
 930                         // Not found in this tab group.
 931                         continue;
 932
 933                 // We found and removed the GuiWorkArea.
 934                 if (!twa->count()) {
 935                         // No more WorkAreas in this tab group, so delete it.
 936                         delete twa;
 937                         break;
 938                 }
 939
 940                 if (d.current_work_area_)
 941                         // This means that we are not closing the current GuiWorkArea;
 942                         break;
 943
 944                 // Switch to the next GuiWorkArea in the found TabWorkArea.
 945                 d.current_work_area_ = twa->currentWorkArea();
 946                 break;
 947         }
 948
 949         if (d.splitter_->count() == 0)
 950                 // No more work area, switch to the background widget.
 951                 d.setBackground();
 952 }
 953
 954
 955 void GuiView::updateLayoutChoice(bool force)
 956 {
 957         // Don't show any layouts without a buffer
 958         if (!buffer()) {
 959                 d.toolbars_->clearLayoutList();
 960                 return;
 961         }
 962
 963         // Update the layout display
 964         if (d.toolbars_->updateLayoutList(buffer()->params().getTextClassPtr(), force)) {
 965                 d.current_layout = buffer()->params().getTextClass().defaultLayoutName();
 966         }
 967
 968         docstring const & layout = d.current_work_area_->bufferView().cursor().
 969                 innerParagraph().layout()->name();
 970
 971         if (layout != d.current_layout) {
 972                 d.toolbars_->setLayout(layout);
 973                 d.current_layout = layout;
 974         }
 975 }
 976
 977
 978 bool GuiView::isToolbarVisible(std::string const & id)
 979 {
 980         return d.toolbars_->visible(id);
 981 }
 982
 983 void GuiView::updateToolbars()
 984 {
 985         if (d.current_work_area_) {
 986                 bool const math =
 987                         d.current_work_area_->bufferView().cursor().inMathed();
 988                 bool const table =
 989                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 990                 bool const review =
 991                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
 992                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
 993
 994                 d.toolbars_->update(math, table, review);
 995         } else
 996                 d.toolbars_->update(false, false, false);
 997
 998         // update read-only status of open dialogs.
 999         dialogs_->checkStatus();
1000 }
1001
1002
1003 Buffer * GuiView::buffer()
1004 {
1005         if (d.current_work_area_)
1006                 return &d.current_work_area_->bufferView().buffer();
1007         return 0;
1008 }
1009
1010
1011 Buffer const * GuiView::buffer() const
1012 {
1013         if (d.current_work_area_)
1014                 return &d.current_work_area_->bufferView().buffer();
1015         return 0;
1016 }
1017
1018
1019 void GuiView::setBuffer(Buffer * newBuffer)
1020 {
1021         BOOST_ASSERT(newBuffer);
1022         setBusy(true);
1023
1024         GuiWorkArea * wa = workArea(*newBuffer);
1025         if (wa == 0) {
1026                 updateLabels(*newBuffer->masterBuffer());
1027                 wa = addWorkArea(*newBuffer);
1028         } else {
1029                 //Disconnect the old buffer...there's no new one.
1030                 disconnectBuffer();
1031         }
1032         connectBuffer(*newBuffer);
1033         connectBufferView(wa->bufferView());
1034         setCurrentWorkArea(wa);
1035
1036         setBusy(false);
1037 }
1038
1039
1040 Buffer * GuiView::loadLyXFile(FileName const & filename, bool tolastfiles)
1041 {
1042         setBusy(true);
1043
1044         Buffer * newBuffer = checkAndLoadLyXFile(filename);
1045
1046         if (!newBuffer) {
1047                 message(_("Document not loaded."));
1048                 updateStatusBar();
1049                 setBusy(false);
1050                 return 0;
1051         }
1052
1053         GuiWorkArea * wa = workArea(*newBuffer);
1054         if (wa == 0)
1055                 wa = addWorkArea(*newBuffer);
1056
1057         // scroll to the position when the file was last closed
1058         if (lyxrc.use_lastfilepos) {
1059                 LastFilePosSection::FilePos filepos =
1060                         LyX::ref().session().lastFilePos().load(filename);
1061                 // if successfully move to pit (returned par_id is not zero),
1062                 // update metrics and reset font
1063                 wa->bufferView().moveToPosition(filepos.pit, filepos.pos, 0, 0);
1064         }
1065
1066         if (tolastfiles)
1067                 LyX::ref().session().lastFiles().add(filename);
1068
1069         setBusy(false);
1070         return newBuffer;
1071 }
1072
1073
1074 void GuiView::connectBuffer(Buffer & buf)
1075 {
1076         buf.setGuiDelegate(this);
1077 }
1078
1079
1080 void GuiView::disconnectBuffer()
1081 {
1082         if (d.current_work_area_)
1083                 d.current_work_area_->bufferView().setGuiDelegate(0);
1084 }
1085
1086
1087 void GuiView::connectBufferView(BufferView & bv)
1088 {
1089         bv.setGuiDelegate(this);
1090 }
1091
1092
1093 void GuiView::disconnectBufferView()
1094 {
1095         if (d.current_work_area_)
1096                 d.current_work_area_->bufferView().setGuiDelegate(0);
1097 }
1098
1099
1100 void GuiView::errors(string const & error_type)
1101 {
1102         ErrorList & el = buffer()->errorList(error_type);
1103         if (!el.empty())
1104                 dialogs_->show("errorlist", error_type);
1105 }
1106
1107
1108 void GuiView::showDialog(string const & name)
1109 {
1110         dialogs_->show(name);
1111 }
1112
1113
1114 void GuiView::showDialogWithData(string const & name, string const & data)
1115 {
1116         dialogs_->show(name, data);
1117 }
1118
1119
1120 void GuiView::showInsetDialog(string const & name, string const & data,
1121                 Inset * inset)
1122 {
1123         dialogs_->show(name, data, inset);
1124 }
1125
1126
1127 void GuiView::updateDialog(string const & name, string const & data)
1128 {
1129         if (dialogs_->visible(name))
1130                 dialogs_->update(name, data);
1131 }
1132
1133
1134 BufferView * GuiView::view()
1135 {
1136         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1137 }
1138
1139
1140 void GuiView::updateToc()
1141 {
1142         updateDialog("toc", "");
1143 }
1144
1145
1146 void GuiView::updateEmbeddedFiles()
1147 {
1148         updateDialog("embedding", "");
1149 }
1150
1151
1152 void GuiView::autoSave()
1153 {
1154         LYXERR(Debug::INFO) << "Running autoSave()" << endl;
1155
1156         if (buffer())
1157                 view()->buffer().autoSave();
1158 }
1159
1160
1161 void GuiView::resetAutosaveTimers()
1162 {
1163         if (lyxrc.autosave)
1164                 autosave_timeout_->restart();
1165 }
1166
1167
1168 void GuiView::dispatch(FuncRequest const & cmd)
1169 {
1170         switch(cmd.action) {
1171                 case LFUN_BUFFER_SWITCH:
1172                         setBuffer(theBufferList().getBuffer(to_utf8(cmd.argument())));
1173                         break;
1174
1175                 case LFUN_COMMAND_EXECUTE: {
1176                         bool const show_it = cmd.argument() != "off";
1177                         d.toolbars_->showCommandBuffer(show_it);
1178                         break;
1179                 }
1180                 case LFUN_DROP_LAYOUTS_CHOICE:
1181                         d.toolbars_->openLayoutList();
1182                         break;
1183
1184                 case LFUN_MENU_OPEN:
1185                         d.menubar_->openByName(toqstr(cmd.argument()));
1186                         break;
1187
1188                 case LFUN_TOOLBAR_TOGGLE: {
1189                         string const name = cmd.getArg(0);
1190                         bool const allowauto = cmd.getArg(1) == "allowauto";
1191                         // it is possible to get current toolbar status like this,...
1192                         // but I decide to obey the order of ToolbarBackend::flags
1193                         // and disregard real toolbar status.
1194                         // toolbars_->saveToolbarInfo();
1195                         //
1196                         // toggle state on/off/auto
1197                         d.toolbars_->toggleToolbarState(name, allowauto);
1198                         // update toolbar
1199                         updateToolbars();
1200
1201                         ToolbarInfo * tbi = d.toolbars_->getToolbarInfo(name);
1202                         if (!tbi) {
1203                                 message(bformat(_("Unknown toolbar \"%1$s\""), from_utf8(name)));
1204                                 break;
1205                         }
1206                         docstring state;
1207                         if (tbi->flags & ToolbarInfo::ON)
1208                                 state = _("on");
1209                         else if (tbi->flags & ToolbarInfo::OFF)
1210                                 state = _("off");
1211                         else if (tbi->flags & ToolbarInfo::AUTO)
1212                                 state = _("auto");
1213
1214                         message(bformat(_("Toolbar \"%1$s\" state set to %2$s"),
1215                                            _(tbi->gui_name), state));
1216                         break;
1217                 }
1218
1219                 default:
1220                         theLyXFunc().setLyXView(this);
1221                         lyx::dispatch(cmd);
1222         }
1223 }
1224
1225
1226 Buffer const * GuiView::updateInset(Inset const * inset)
1227 {
1228         if (!d.current_work_area_)
1229                 return 0;
1230
1231         if (inset)
1232                 d.current_work_area_->scheduleRedraw();
1233
1234         return &d.current_work_area_->bufferView().buffer();
1235 }
1236
1237
1238 void GuiView::restartCursor()
1239 {
1240         /* When we move around, or type, it's nice to be able to see
1241          * the cursor immediately after the keypress.
1242          */
1243         if (d.current_work_area_)
1244                 d.current_work_area_->startBlinkingCursor();
1245 }
1246
1247 } // namespace frontend
1248 } // namespace lyx
1249
1250 #include "GuiView_moc.cpp"