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 "TextClass.h"
  56 #include "Text.h"
  57 #include "ToolbarBackend.h"
  58 #include "version.h"
  59
  60 #include "support/lstrings.h"
  61 #include "support/filetools.h" // OnlyFilename()
  62 #include "support/Timeout.h"
  63
  64 #include <QAction>
  65 #include <QApplication>
  66 #include <QCloseEvent>
  67 #include <QDesktopWidget>
  68 #include <QDragEnterEvent>
  69 #include <QDropEvent>
  70 #include <QList>
  71 #include <QMenu>
  72 #include <QPainter>
  73 #include <QPixmap>
  74 #include <QPushButton>
  75 #include <QSettings>
  76 #include <QShowEvent>
  77 #include <QSplitter>
  78 #include <QStackedWidget>
  79 #include <QStatusBar>
  80 #include <QToolBar>
  81 #include <QUrl>
  82
  83 #include <boost/bind.hpp>
  84 #include <boost/current_function.hpp>
  85
  86 #ifdef HAVE_SYS_TIME_H
  87 # include <sys/time.h>
  88 #endif
  89 #ifdef HAVE_UNISTD_H
  90 # include <unistd.h>
  91 #endif
  92
  93 using std::endl;
  94 using std::string;
  95 using std::vector;
  96
  97 namespace lyx {
  98
  99 extern bool quitting;
 100
 101 namespace frontend {
 102
 103 using support::bformat;
 104 using support::FileName;
 105 using support::makeDisplayPath;
 106 using support::onlyFilename;
 107
 108 namespace {
 109
 110 int const statusbar_timer_value = 3000;
 111
 112 class BackgroundWidget : public QWidget
 113 {
 114 public:
 115         BackgroundWidget(QString const & file, QString const & text)
 116         {
 117                 splash_ = new QPixmap(file);
 118                 if (!splash_) {
 119                         lyxerr << "could not load splash screen: '" << fromqstr(file) << "'" << endl;
 120                         return;
 121                 }
 122
 123                 QPainter pain(splash_);
 124                 pain.setPen(QColor(255, 255, 0));
 125                 QFont font;
 126                 // The font used to display the version info
 127                 font.setStyleHint(QFont::SansSerif);
 128                 font.setWeight(QFont::Bold);
 129                 font.setPointSize(convert<int>(lyxrc.font_sizes[FONT_SIZE_LARGE]));
 130                 pain.setFont(font);
 131                 pain.drawText(260, 270, text);
 132         }
 133
 134         void paintEvent(QPaintEvent *)
 135         {
 136                 if (!splash_)
 137                         return;
 138
 139                 int x = (width() - splash_->width()) / 2;
 140                 int y = (height() - splash_->height()) / 2;
 141                 QPainter pain(this);
 142                 pain.drawPixmap(x, y, *splash_);
 143         }
 144
 145 private:
 146         QPixmap * splash_;
 147 };
 148
 149 } // namespace anon
 150
 151
 152 struct GuiView::GuiViewPrivate
 153 {
 154         GuiViewPrivate()
 155                 : current_work_area_(0), posx_offset(0), posy_offset(0)
 156         {}
 157
 158         ~GuiViewPrivate()
 159         {
 160                 delete splitter_;
 161                 delete bg_widget_;
 162                 delete stack_widget_;
 163                 delete menubar_;
 164                 delete toolbars_;
 165         }
 166
 167         unsigned int smallIconSize;
 168         unsigned int normalIconSize;
 169         unsigned int bigIconSize;
 170         // static needed by "New Window"
 171         static unsigned int lastIconSize;
 172
 173         QMenu * toolBarPopup(GuiView * parent)
 174         {
 175                 // FIXME: translation
 176                 QMenu * menu = new QMenu(parent);
 177                 QActionGroup * iconSizeGroup = new QActionGroup(parent);
 178
 179                 QAction * smallIcons = new QAction(iconSizeGroup);
 180                 smallIcons->setText(qt_("Small-sized icons"));
 181                 smallIcons->setCheckable(true);
 182                 QObject::connect(smallIcons, SIGNAL(triggered()),
 183                         parent, SLOT(smallSizedIcons()));
 184                 menu->addAction(smallIcons);
 185
 186                 QAction * normalIcons = new QAction(iconSizeGroup);
 187                 normalIcons->setText(qt_("Normal-sized icons"));
 188                 normalIcons->setCheckable(true);
 189                 QObject::connect(normalIcons, SIGNAL(triggered()),
 190                         parent, SLOT(normalSizedIcons()));
 191                 menu->addAction(normalIcons);
 192
 193                 QAction * bigIcons = new QAction(iconSizeGroup);
 194                 bigIcons->setText(qt_("Big-sized icons"));
 195                 bigIcons->setCheckable(true);
 196                 QObject::connect(bigIcons, SIGNAL(triggered()),
 197                         parent, SLOT(bigSizedIcons()));
 198                 menu->addAction(bigIcons);
 199
 200                 unsigned int cur = parent->iconSize().width();
 201                 if ( cur == parent->d.smallIconSize)
 202                         smallIcons->setChecked(true);
 203                 else if (cur == parent->d.normalIconSize)
 204                         normalIcons->setChecked(true);
 205                 else if (cur == parent->d.bigIconSize)
 206                         bigIcons->setChecked(true);
 207
 208                 return menu;
 209         }
 210
 211         void initBackground()
 212         {
 213                 LYXERR(Debug::GUI, "show banner: " << lyxrc.show_banner);
 214                 /// The text to be written on top of the pixmap
 215                 QString const text = lyx_version ? QString(lyx_version) : qt_("unknown version");
 216                 bg_widget_ = new BackgroundWidget(":/images/banner.png", text);
 217         }
 218
 219         void setBackground()
 220         {
 221                 stack_widget_->setCurrentWidget(bg_widget_);
 222                 bg_widget_->setUpdatesEnabled(true);
 223         }
 224
 225         TabWorkArea * tabWorkArea(int i)
 226         {
 227                 return dynamic_cast<TabWorkArea *>(splitter_->widget(i));
 228         }
 229
 230         TabWorkArea * currentTabWorkArea()
 231         {
 232                 if (splitter_->count() == 1)
 233                         // The first TabWorkArea is always the first one, if any.
 234                         return tabWorkArea(0);
 235
 236                 TabWorkArea * tab_widget = 0;
 237                 for (int i = 0; i != splitter_->count(); ++i) {
 238                         QWidget * w = splitter_->widget(i);
 239                         if (!w->hasFocus())
 240                                 continue;
 241                         tab_widget = dynamic_cast<TabWorkArea *>(w);
 242                         if (tab_widget)
 243                                 break;
 244                 }
 245
 246                 return tab_widget;
 247         }
 248
 249 public:
 250         ///
 251         string cur_title;
 252
 253         GuiWorkArea * current_work_area_;
 254         int posx_offset;
 255         int posy_offset;
 256
 257         QSplitter * splitter_;
 258         QStackedWidget * stack_widget_;
 259         BackgroundWidget * bg_widget_;
 260         /// view's menubar
 261         GuiMenubar * menubar_;
 262         /// view's toolbars
 263         GuiToolbars * toolbars_;
 264         ///
 265         docstring current_layout;
 266 };
 267
 268
 269 unsigned int GuiView::GuiViewPrivate::lastIconSize = 0;
 270
 271
 272 GuiView::GuiView(int id)
 273         : QMainWindow(), LyXView(id),
 274           d(*new GuiViewPrivate),
 275                 quitting_by_menu_(false),
 276                 autosave_timeout_(new Timeout(5000)),
 277           dialogs_(new Dialogs(*this))
 278 {
 279         // Start autosave timer
 280         if (lyxrc.autosave) {
 281                 autosave_timeout_->timeout.connect(boost::bind(&GuiView::autoSave, this));
 282                 autosave_timeout_->setTimeout(lyxrc.autosave * 1000);
 283                 autosave_timeout_->start();
 284         }
 285
 286         // Qt bug? signal lastWindowClosed does not work
 287         setAttribute(Qt::WA_QuitOnClose, false);
 288         setAttribute(Qt::WA_DeleteOnClose, true);
 289
 290         // hardcode here the platform specific icon size
 291         d.smallIconSize = 14;   // scaling problems
 292         d.normalIconSize = 20;  // ok, default
 293         d.bigIconSize = 26;             // better for some math icons
 294
 295 #ifndef Q_WS_MACX
 296         // assign an icon to main form. We do not do it under Qt/Mac,
 297         // since the icon is provided in the application bundle.
 298         setWindowIcon(QPixmap(":/images/lyx.png"));
 299 #endif
 300
 301
 302         d.splitter_ = new QSplitter;
 303
 304         d.initBackground();
 305         LYXERR(Debug::GUI, "stack widget!");
 306         d.stack_widget_ = new QStackedWidget;
 307         d.stack_widget_->addWidget(d.bg_widget_);
 308         d.stack_widget_->addWidget(d.splitter_);
 309         setCentralWidget(d.stack_widget_);
 310
 311         // For Drag&Drop.
 312         setAcceptDrops(true);
 313 }
 314
 315
 316 GuiView::~GuiView()
 317 {
 318         delete dialogs_;
 319         delete autosave_timeout_;
 320         delete &d;
 321 }
 322
 323
 324 void GuiView::close()
 325 {
 326         quitting_by_menu_ = true;
 327         d.current_work_area_ = 0;
 328         for (int i = 0; i != d.splitter_->count(); ++i) {
 329                 TabWorkArea * twa = d.tabWorkArea(i);
 330                 if (twa)
 331                         twa->closeAll();
 332         }
 333         QMainWindow::close();
 334         quitting_by_menu_ = false;
 335 }
 336
 337
 338 void GuiView::setFocus()
 339 {
 340         if (d.current_work_area_)
 341                 d.current_work_area_->setFocus();
 342         else
 343                 QWidget::setFocus();
 344 }
 345
 346
 347 QMenu* GuiView::createPopupMenu()
 348 {
 349         return d.toolBarPopup(this);
 350 }
 351
 352
 353 void GuiView::init()
 354 {
 355         // GuiToolbars *must* be initialised before GuiMenubar.
 356         d.toolbars_ = new GuiToolbars(*this);
 357         // FIXME: GuiToolbars::init() cannot be integrated in the ctor
 358         // because LyXFunc::getStatus() needs a properly initialized
 359         // GuiToolbars object (for LFUN_TOOLBAR_TOGGLE).
 360         d.toolbars_->init();
 361         d.menubar_ = new GuiMenubar(this, menubackend);
 362
 363         statusBar()->setSizeGripEnabled(true);
 364
 365         QObject::connect(&statusbar_timer_, SIGNAL(timeout()),
 366                 this, SLOT(clearMessage()));
 367
 368         d.setBackground();
 369 }
 370
 371
 372 void GuiView::showEvent(QShowEvent * e)
 373 {
 374         if (lyxrc.allow_geometry_session) {
 375                 QSettings settings;
 376                 QString const key = "view-" + QString::number(id());
 377                 if (!restoreGeometry(settings.value(key + "/geometry").toByteArray()))
 378                         setGeometry(50, 50, 690, 510);
 379                 setIconSize(settings.value(key + "/icon_size").toSize());
 380         } else
 381                 setGeometry(50, 50, 690, 510);
 382
 383         if (d.splitter_->count() == 0)
 384                 // No work area, switch to the background widget.
 385                 d.setBackground();
 386
 387         QMainWindow::showEvent(e);
 388 }
 389
 390
 391 void GuiView::closeEvent(QCloseEvent * close_event)
 392 {
 393         // we may have been called through the close window button
 394         // which bypasses the LFUN machinery.
 395         if (!quitting_by_menu_ && theApp()->gui().viewIds().size() == 1) {
 396                 if (!theBufferList().quitWriteAll()) {
 397                         close_event->ignore();
 398                         return;
 399                 }
 400         }
 401
 402         // Make sure that no LFUN use this close to be closed View.
 403         theLyXFunc().setLyXView(0);
 404         // Make sure the timer time out will not trigger a statusbar update.
 405         statusbar_timer_.stop();
 406
 407         if (lyxrc.allow_geometry_session) {
 408                 QSettings settings;
 409                 QString const key = "view-" + QString::number(id());
 410                 settings.setValue(key + "/geometry", saveGeometry());
 411                 settings.setValue(key + "/icon_size", iconSize());
 412                 d.toolbars_->saveToolbarInfo();
 413         }
 414
 415         theApp()->gui().unregisterView(id());
 416         if (!theApp()->gui().viewIds().empty()) {
 417                 // Just close the window and do nothing else if this is not the
 418                 // last window.
 419                 close_event->accept();
 420                 return;
 421         }
 422
 423         quitting = true;
 424
 425         // this is the place where we leave the frontend.
 426         // it is the only point at which we start quitting.
 427         close_event->accept();
 428         // quit the event loop
 429         qApp->quit();
 430 }
 431
 432
 433 void GuiView::dragEnterEvent(QDragEnterEvent * event)
 434 {
 435         if (event->mimeData()->hasUrls())
 436                 event->accept();
 437         /// \todo Ask lyx-devel is this is enough:
 438         /// if (event->mimeData()->hasFormat("text/plain"))
 439         ///     event->acceptProposedAction();
 440 }
 441
 442
 443 void GuiView::dropEvent(QDropEvent* event)
 444 {
 445         QList<QUrl> files = event->mimeData()->urls();
 446         if (files.isEmpty())
 447                 return;
 448
 449         LYXERR(Debug::GUI, BOOST_CURRENT_FUNCTION << " got URLs!");
 450         for (int i = 0; i != files.size(); ++i) {
 451                 string const file = support::os::internal_path(fromqstr(
 452                         files.at(i).toLocalFile()));
 453                 if (!file.empty())
 454                         dispatch(FuncRequest(LFUN_FILE_OPEN, file));
 455         }
 456 }
 457
 458
 459 void GuiView::message(docstring const & str)
 460 {
 461         statusBar()->showMessage(toqstr(str));
 462         statusbar_timer_.stop();
 463         statusbar_timer_.start(statusbar_timer_value);
 464 }
 465
 466
 467 void GuiView::smallSizedIcons()
 468 {
 469         setIconSize(QSize(d.smallIconSize, d.smallIconSize));
 470 }
 471
 472
 473 void GuiView::normalSizedIcons()
 474 {
 475         setIconSize(QSize(d.normalIconSize, d.normalIconSize));
 476 }
 477
 478
 479 void GuiView::bigSizedIcons()
 480 {
 481         setIconSize(QSize(d.bigIconSize, d.bigIconSize));
 482 }
 483
 484
 485 void GuiView::clearMessage()
 486 {
 487         if (!hasFocus())
 488                 return;
 489         theLyXFunc().setLyXView(this);
 490         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 491         statusbar_timer_.stop();
 492 }
 493
 494
 495 void GuiView::updateWindowTitle(GuiWorkArea * wa)
 496 {
 497         if (wa != d.current_work_area_)
 498                 return;
 499         setWindowTitle(qt_("LyX: ") + wa->windowTitle());
 500         setWindowIconText(wa->windowIconText());
 501 }
 502
 503
 504 void GuiView::on_currentWorkAreaChanged(GuiWorkArea * wa)
 505 {
 506         disconnectBuffer();
 507         disconnectBufferView();
 508         connectBufferView(wa->bufferView());
 509         connectBuffer(wa->bufferView().buffer());
 510         d.current_work_area_ = wa;
 511         QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
 512                 this, SLOT(updateWindowTitle(GuiWorkArea *)));
 513         updateWindowTitle(wa);
 514
 515         updateToc();
 516         // Buffer-dependent dialogs should be updated or
 517         // hidden. This should go here because some dialogs (eg ToC)
 518         // require bv_->text.
 519         dialogs_->updateBufferDependent(true);
 520         updateToolbars();
 521         updateLayoutChoice(false);
 522         updateStatusBar();
 523 }
 524
 525
 526 void GuiView::updateStatusBar()
 527 {
 528         // let the user see the explicit message
 529         if (statusbar_timer_.isActive())
 530                 return;
 531
 532         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 533 }
 534
 535
 536 bool GuiView::hasFocus() const
 537 {
 538         return qApp->activeWindow() == this;
 539 }
 540
 541
 542 bool GuiView::event(QEvent * e)
 543 {
 544         switch (e->type())
 545         {
 546         // Useful debug code:
 547         //case QEvent::ActivationChange:
 548         //case QEvent::WindowDeactivate:
 549         //case QEvent::Paint:
 550         //case QEvent::Enter:
 551         //case QEvent::Leave:
 552         //case QEvent::HoverEnter:
 553         //case QEvent::HoverLeave:
 554         //case QEvent::HoverMove:
 555         //case QEvent::StatusTip:
 556         //case QEvent::DragEnter:
 557         //case QEvent::DragLeave:
 558         //case QEvent::Drop:
 559         //      break;
 560
 561         case QEvent::WindowActivate: {
 562                 theApp()->setCurrentView(*this);
 563                 if (d.current_work_area_) {
 564                         BufferView & bv = d.current_work_area_->bufferView();
 565                         connectBufferView(bv);
 566                         connectBuffer(bv.buffer());
 567                         // The document structure, name and dialogs might have
 568                         // changed in another view.
 569                         dialogs_->updateBufferDependent(true);
 570                 } else {
 571                         setWindowTitle(qt_("LyX"));
 572                         setWindowIconText(qt_("LyX"));
 573                 }
 574                 return QMainWindow::event(e);
 575         }
 576         case QEvent::ShortcutOverride: {
 577                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 578                 if (!d.current_work_area_) {
 579                         theLyXFunc().setLyXView(this);
 580                         KeySymbol sym;
 581                         setKeySymbol(&sym, ke);
 582                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 583                         e->accept();
 584                         return true;
 585                 }
 586                 if (ke->key() == Qt::Key_Tab || ke->key() == Qt::Key_Backtab) {
 587                         KeySymbol sym;
 588                         setKeySymbol(&sym, ke);
 589                         d.current_work_area_->processKeySym(sym, NoModifier);
 590                         e->accept();
 591                         return true;
 592                 }
 593         }
 594         default:
 595                 return QMainWindow::event(e);
 596         }
 597 }
 598
 599
 600 bool GuiView::focusNextPrevChild(bool /*next*/)
 601 {
 602         setFocus();
 603         return true;
 604 }
 605
 606
 607 void GuiView::setBusy(bool yes)
 608 {
 609         if (d.current_work_area_) {
 610                 d.current_work_area_->setUpdatesEnabled(!yes);
 611                 if (yes)
 612                         d.current_work_area_->stopBlinkingCursor();
 613                 else
 614                         d.current_work_area_->startBlinkingCursor();
 615         }
 616
 617         if (yes)
 618                 QApplication::setOverrideCursor(Qt::WaitCursor);
 619         else
 620                 QApplication::restoreOverrideCursor();
 621 }
 622
 623
 624 GuiToolbar * GuiView::makeToolbar(ToolbarInfo const & tbinfo, bool newline)
 625 {
 626         GuiToolbar * toolBar = new GuiToolbar(tbinfo, *this);
 627
 628         if (tbinfo.flags & ToolbarInfo::TOP) {
 629                 if (newline)
 630                         addToolBarBreak(Qt::TopToolBarArea);
 631                 addToolBar(Qt::TopToolBarArea, toolBar);
 632         }
 633
 634         if (tbinfo.flags & ToolbarInfo::BOTTOM) {
 635 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 636 #if (QT_VERSION >= 0x040202)
 637                 if (newline)
 638                         addToolBarBreak(Qt::BottomToolBarArea);
 639 #endif
 640                 addToolBar(Qt::BottomToolBarArea, toolBar);
 641         }
 642
 643         if (tbinfo.flags & ToolbarInfo::LEFT) {
 644 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 645 #if (QT_VERSION >= 0x040202)
 646                 if (newline)
 647                         addToolBarBreak(Qt::LeftToolBarArea);
 648 #endif
 649                 addToolBar(Qt::LeftToolBarArea, toolBar);
 650         }
 651
 652         if (tbinfo.flags & ToolbarInfo::RIGHT) {
 653 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 654 #if (QT_VERSION >= 0x040202)
 655                 if (newline)
 656                         addToolBarBreak(Qt::RightToolBarArea);
 657 #endif
 658                 addToolBar(Qt::RightToolBarArea, toolBar);
 659         }
 660
 661         // The following does not work so I cannot restore to exact toolbar location
 662         /*
 663         ToolbarSection::ToolbarInfo & tbinfo = LyX::ref().session().toolbars().load(tbinfo.name);
 664         toolBar->move(tbinfo.posx, tbinfo.posy);
 665         */
 666
 667         return toolBar;
 668 }
 669
 670
 671 GuiWorkArea * GuiView::workArea(Buffer & buffer)
 672 {
 673         for (int i = 0; i != d.splitter_->count(); ++i) {
 674                 GuiWorkArea * wa = d.tabWorkArea(i)->workArea(buffer);
 675                 if (wa)
 676                         return wa;
 677         }
 678         return 0;
 679 }
 680
 681
 682 GuiWorkArea * GuiView::addWorkArea(Buffer & buffer)
 683 {
 684         GuiWorkArea * wa = new GuiWorkArea(buffer, *this);
 685         wa->setUpdatesEnabled(false);
 686
 687         // Automatically create a TabWorkArea if there are none yet.
 688         if (!d.splitter_->count())
 689                 addTabWorkArea();
 690
 691         TabWorkArea * tab_widget = d.currentTabWorkArea();
 692         tab_widget->addTab(wa, wa->windowTitle());
 693         QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
 694                 tab_widget, SLOT(updateTabText(GuiWorkArea *)));
 695
 696         wa->bufferView().updateMetrics();
 697
 698         // Hide tabbar if there's only one tab.
 699         tab_widget->showBar(tab_widget->count() > 1);
 700         return wa;
 701 }
 702
 703
 704 void GuiView::addTabWorkArea()
 705 {
 706         TabWorkArea * twa = new TabWorkArea;
 707         QObject::connect(twa, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
 708                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
 709         d.splitter_->addWidget(twa);
 710         d.stack_widget_->setCurrentWidget(d.splitter_);
 711 }
 712
 713
 714 GuiWorkArea const * GuiView::currentWorkArea() const
 715 {
 716         return d.current_work_area_;
 717 }
 718
 719
 720 void GuiView::setCurrentWorkArea(GuiWorkArea * work_area)
 721 {
 722         BOOST_ASSERT(work_area);
 723
 724         // Changing work area can result from opening a file so
 725         // update the toc in any case.
 726         updateToc();
 727
 728         GuiWorkArea * wa = static_cast<GuiWorkArea *>(work_area);
 729         d.current_work_area_ = wa;
 730         for (int i = 0; i != d.splitter_->count(); ++i) {
 731                 if (d.tabWorkArea(i)->setCurrentWorkArea(wa))
 732                         return;
 733         }
 734 }
 735
 736
 737 void GuiView::removeWorkArea(GuiWorkArea * work_area)
 738 {
 739         BOOST_ASSERT(work_area);
 740         GuiWorkArea * gwa = static_cast<GuiWorkArea *>(work_area);
 741         if (gwa == d.current_work_area_) {
 742                 disconnectBuffer();
 743                 disconnectBufferView();
 744                 dialogs_->hideBufferDependent();
 745                 d.current_work_area_ = 0;
 746         }
 747
 748         // removing a work area often results from closing a file so
 749         // update the toc in any case.
 750         updateToc();
 751
 752         for (int i = 0; i != d.splitter_->count(); ++i) {
 753                 TabWorkArea * twa = d.tabWorkArea(i);
 754                 if (!twa->removeWorkArea(gwa))
 755                         // Not found in this tab group.
 756                         continue;
 757
 758                 // We found and removed the GuiWorkArea.
 759                 if (!twa->count()) {
 760                         // No more WorkAreas in this tab group, so delete it.
 761                         delete twa;
 762                         break;
 763                 }
 764
 765                 if (d.current_work_area_)
 766                         // This means that we are not closing the current GuiWorkArea;
 767                         break;
 768
 769                 // Switch to the next GuiWorkArea in the found TabWorkArea.
 770                 d.current_work_area_ = twa->currentWorkArea();
 771                 break;
 772         }
 773
 774         if (d.splitter_->count() == 0)
 775                 // No more work area, switch to the background widget.
 776                 d.setBackground();
 777 }
 778
 779
 780 void GuiView::updateLayoutChoice(bool force)
 781 {
 782         // Don't show any layouts without a buffer
 783         if (!buffer()) {
 784                 d.toolbars_->clearLayoutList();
 785                 return;
 786         }
 787
 788         // Update the layout display
 789         if (d.toolbars_->updateLayoutList(buffer()->params().getTextClassPtr(), force)) {
 790                 d.current_layout = buffer()->params().getTextClass().defaultLayoutName();
 791         }
 792
 793         docstring const & layout = d.current_work_area_->bufferView().cursor().
 794                 innerParagraph().layout()->name();
 795
 796         if (layout != d.current_layout) {
 797                 d.toolbars_->setLayout(layout);
 798                 d.current_layout = layout;
 799         }
 800 }
 801
 802
 803 bool GuiView::isToolbarVisible(std::string const & id)
 804 {
 805         return d.toolbars_->visible(id);
 806 }
 807
 808 void GuiView::updateToolbars()
 809 {
 810         if (d.current_work_area_) {
 811                 bool const math =
 812                         d.current_work_area_->bufferView().cursor().inMathed();
 813                 bool const table =
 814                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
 815                 bool const review =
 816                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
 817                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
 818
 819                 d.toolbars_->update(math, table, review);
 820         } else
 821                 d.toolbars_->update(false, false, false);
 822
 823         // update read-only status of open dialogs.
 824         dialogs_->checkStatus();
 825 }
 826
 827
 828 Buffer * GuiView::buffer()
 829 {
 830         if (d.current_work_area_)
 831                 return &d.current_work_area_->bufferView().buffer();
 832         return 0;
 833 }
 834
 835
 836 Buffer const * GuiView::buffer() const
 837 {
 838         if (d.current_work_area_)
 839                 return &d.current_work_area_->bufferView().buffer();
 840         return 0;
 841 }
 842
 843
 844 void GuiView::setBuffer(Buffer * newBuffer)
 845 {
 846         BOOST_ASSERT(newBuffer);
 847         setBusy(true);
 848
 849         GuiWorkArea * wa = workArea(*newBuffer);
 850         if (wa == 0) {
 851                 updateLabels(*newBuffer->masterBuffer());
 852                 wa = addWorkArea(*newBuffer);
 853         } else {
 854                 //Disconnect the old buffer...there's no new one.
 855                 disconnectBuffer();
 856         }
 857         connectBuffer(*newBuffer);
 858         connectBufferView(wa->bufferView());
 859         setCurrentWorkArea(wa);
 860
 861         setBusy(false);
 862 }
 863
 864
 865 Buffer * GuiView::loadLyXFile(FileName const & filename, bool tolastfiles)
 866 {
 867         setBusy(true);
 868
 869         Buffer * newBuffer = checkAndLoadLyXFile(filename);
 870
 871         if (!newBuffer) {
 872                 message(_("Document not loaded."));
 873                 updateStatusBar();
 874                 setBusy(false);
 875                 return 0;
 876         }
 877
 878         GuiWorkArea * wa = workArea(*newBuffer);
 879         if (wa == 0)
 880                 wa = addWorkArea(*newBuffer);
 881
 882         // scroll to the position when the file was last closed
 883         if (lyxrc.use_lastfilepos) {
 884                 LastFilePosSection::FilePos filepos =
 885                         LyX::ref().session().lastFilePos().load(filename);
 886                 // if successfully move to pit (returned par_id is not zero),
 887                 // update metrics and reset font
 888                 wa->bufferView().moveToPosition(filepos.pit, filepos.pos, 0, 0);
 889         }
 890
 891         if (tolastfiles)
 892                 LyX::ref().session().lastFiles().add(filename);
 893
 894         setBusy(false);
 895         return newBuffer;
 896 }
 897
 898
 899 void GuiView::connectBuffer(Buffer & buf)
 900 {
 901         buf.setGuiDelegate(this);
 902 }
 903
 904
 905 void GuiView::disconnectBuffer()
 906 {
 907         if (d.current_work_area_)
 908                 d.current_work_area_->bufferView().setGuiDelegate(0);
 909 }
 910
 911
 912 void GuiView::connectBufferView(BufferView & bv)
 913 {
 914         bv.setGuiDelegate(this);
 915 }
 916
 917
 918 void GuiView::disconnectBufferView()
 919 {
 920         if (d.current_work_area_)
 921                 d.current_work_area_->bufferView().setGuiDelegate(0);
 922 }
 923
 924
 925 void GuiView::errors(string const & error_type)
 926 {
 927         ErrorList & el = buffer()->errorList(error_type);
 928         if (!el.empty())
 929                 dialogs_->show("errorlist", error_type);
 930 }
 931
 932
 933 void GuiView::showDialog(string const & name)
 934 {
 935         dialogs_->show(name);
 936 }
 937
 938
 939 void GuiView::showDialogWithData(string const & name, string const & data)
 940 {
 941         dialogs_->show(name, data);
 942 }
 943
 944
 945 void GuiView::showInsetDialog(string const & name, string const & data,
 946                 Inset * inset)
 947 {
 948         dialogs_->show(name, data, inset);
 949 }
 950
 951
 952 void GuiView::updateDialog(string const & name, string const & data)
 953 {
 954         if (dialogs_->visible(name))
 955                 dialogs_->update(name, data);
 956 }
 957
 958
 959 BufferView * GuiView::view()
 960 {
 961         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
 962 }
 963
 964
 965 void GuiView::updateToc()
 966 {
 967         updateDialog("toc", "");
 968 }
 969
 970
 971 void GuiView::updateEmbeddedFiles()
 972 {
 973         updateDialog("embedding", "");
 974 }
 975
 976
 977 void GuiView::autoSave()
 978 {
 979         LYXERR(Debug::INFO, "Running autoSave()");
 980
 981         if (buffer())
 982                 view()->buffer().autoSave();
 983 }
 984
 985
 986 void GuiView::resetAutosaveTimers()
 987 {
 988         if (lyxrc.autosave)
 989                 autosave_timeout_->restart();
 990 }
 991
 992
 993 void GuiView::dispatch(FuncRequest const & cmd)
 994 {
 995         switch(cmd.action) {
 996                 case LFUN_BUFFER_SWITCH:
 997                         setBuffer(theBufferList().getBuffer(to_utf8(cmd.argument())));
 998                         break;
 999
1000                 case LFUN_COMMAND_EXECUTE: {
1001                         bool const show_it = cmd.argument() != "off";
1002                         d.toolbars_->showCommandBuffer(show_it);
1003                         break;
1004                 }
1005                 case LFUN_DROP_LAYOUTS_CHOICE:
1006                         d.toolbars_->openLayoutList();
1007                         break;
1008
1009                 case LFUN_MENU_OPEN:
1010                         d.menubar_->openByName(toqstr(cmd.argument()));
1011                         break;
1012
1013                 case LFUN_TOOLBAR_TOGGLE: {
1014                         string const name = cmd.getArg(0);
1015                         bool const allowauto = cmd.getArg(1) == "allowauto";
1016                         // it is possible to get current toolbar status like this,...
1017                         // but I decide to obey the order of ToolbarBackend::flags
1018                         // and disregard real toolbar status.
1019                         // toolbars_->saveToolbarInfo();
1020                         //
1021                         // toggle state on/off/auto
1022                         d.toolbars_->toggleToolbarState(name, allowauto);
1023                         // update toolbar
1024                         updateToolbars();
1025
1026                         ToolbarInfo * tbi = d.toolbars_->getToolbarInfo(name);
1027                         if (!tbi) {
1028                                 message(bformat(_("Unknown toolbar \"%1$s\""), from_utf8(name)));
1029                                 break;
1030                         }
1031                         docstring state;
1032                         if (tbi->flags & ToolbarInfo::ON)
1033                                 state = _("on");
1034                         else if (tbi->flags & ToolbarInfo::OFF)
1035                                 state = _("off");
1036                         else if (tbi->flags & ToolbarInfo::AUTO)
1037                                 state = _("auto");
1038
1039                         message(bformat(_("Toolbar \"%1$s\" state set to %2$s"),
1040                                            _(tbi->gui_name), state));
1041                         break;
1042                 }
1043
1044                 default:
1045                         theLyXFunc().setLyXView(this);
1046                         lyx::dispatch(cmd);
1047         }
1048 }
1049
1050
1051 Buffer const * GuiView::updateInset(Inset const * inset)
1052 {
1053         if (!d.current_work_area_)
1054                 return 0;
1055
1056         if (inset)
1057                 d.current_work_area_->scheduleRedraw();
1058
1059         return &d.current_work_area_->bufferView().buffer();
1060 }
1061
1062
1063 void GuiView::restartCursor()
1064 {
1065         /* When we move around, or type, it's nice to be able to see
1066          * the cursor immediately after the keypress.
1067          */
1068         if (d.current_work_area_)
1069                 d.current_work_area_->startBlinkingCursor();
1070 }
1071
1072 } // namespace frontend
1073 } // namespace lyx
1074
1075 #include "GuiView_moc.cpp"