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(update_view_state_qt()));
 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         int 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>(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                           int 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::clearMessage()
 612 {
 613         update_view_state_qt();
 614 }
 615
 616
 617 void GuiView::setIconSize(unsigned int size)
 618 {
 619         d.lastIconSize = size;
 620         QMainWindow::setIconSize(QSize(size, size));
 621 }
 622
 623
 624 void GuiView::smallSizedIcons()
 625 {
 626         setIconSize(d.smallIconSize);
 627 }
 628
 629
 630 void GuiView::normalSizedIcons()
 631 {
 632         setIconSize(d.normalIconSize);
 633 }
 634
 635
 636 void GuiView::bigSizedIcons()
 637 {
 638         setIconSize(d.bigIconSize);
 639 }
 640
 641
 642 void GuiView::update_view_state_qt()
 643 {
 644         if (!hasFocus())
 645                 return;
 646         theLyXFunc().setLyXView(this);
 647         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 648         statusbar_timer_.stop();
 649 }
 650
 651
 652 void GuiView::updateWindowTitle(GuiWorkArea * wa)
 653 {
 654         if (wa != d.current_work_area_)
 655                 return;
 656         setWindowTitle(qt_("LyX: ") + wa->windowTitle());
 657         setWindowIconText(wa->windowIconText());
 658 }
 659
 660
 661 void GuiView::on_currentWorkAreaChanged(GuiWorkArea * wa)
 662 {
 663         disconnectBuffer();
 664         disconnectBufferView();
 665         connectBufferView(wa->bufferView());
 666         connectBuffer(wa->bufferView().buffer());
 667         d.current_work_area_ = wa;
 668         QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
 669                 this, SLOT(updateWindowTitle(GuiWorkArea *)));
 670         updateWindowTitle(wa);
 671
 672         updateToc();
 673         // Buffer-dependent dialogs should be updated or
 674         // hidden. This should go here because some dialogs (eg ToC)
 675         // require bv_->text.
 676         getDialogs().updateBufferDependent(true);
 677         updateToolbars();
 678         updateLayoutChoice(false);
 679         updateStatusBar();
 680 }
 681
 682
 683 void GuiView::updateStatusBar()
 684 {
 685         // let the user see the explicit message
 686         if (statusbar_timer_.isActive())
 687                 return;
 688
 689         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 690 }
 691
 692
 693 void GuiView::activated(FuncRequest const & func)
 694 {
 695         dispatch(func);
 696 }
 697
 698
 699 bool GuiView::hasFocus() const
 700 {
 701         return qApp->activeWindow() == this;
 702 }
 703
 704
 705 QRect  GuiView::updateFloatingGeometry()
 706 {
 707         QDesktopWidget& dw = *qApp->desktop();
 708         QRect desk = dw.availableGeometry(dw.primaryScreen());
 709         // remember only non-maximized sizes
 710         if (!isMaximized() && desk.width() > frameGeometry().width() && desk.height() > frameGeometry().height()) {
 711                 floatingGeometry_ = QRect(x(), y(), width(), height());
 712         }
 713         return floatingGeometry_;
 714 }
 715
 716
 717 void GuiView::resizeEvent(QResizeEvent *)
 718 {
 719         updateFloatingGeometry();
 720 }
 721
 722
 723 void GuiView::moveEvent(QMoveEvent *)
 724 {
 725         updateFloatingGeometry();
 726 }
 727
 728
 729 bool GuiView::event(QEvent * e)
 730 {
 731         switch (e->type())
 732         {
 733         // Useful debug code:
 734         //case QEvent::ActivationChange:
 735         //case QEvent::WindowDeactivate:
 736         //case QEvent::Paint:
 737         //case QEvent::Enter:
 738         //case QEvent::Leave:
 739         //case QEvent::HoverEnter:
 740         //case QEvent::HoverLeave:
 741         //case QEvent::HoverMove:
 742         //case QEvent::StatusTip:
 743         //case QEvent::DragEnter:
 744         //case QEvent::DragLeave:
 745         //case QEvent::Drop:
 746         //      break;
 747
 748         case QEvent::WindowActivate: {
 749                 theApp()->setCurrentView(*this);
 750                 if (d.current_work_area_) {
 751                         BufferView & bv = d.current_work_area_->bufferView();
 752                         connectBufferView(bv);
 753                         connectBuffer(bv.buffer());
 754                         // The document structure, name and dialogs might have
 755                         // changed in another view.
 756                         getDialogs().updateBufferDependent(true);
 757                 } else {
 758                         setWindowTitle(qt_("LyX"));
 759                         setWindowIconText(qt_("LyX"));
 760                 }
 761                 return QMainWindow::event(e);
 762         }
 763         case QEvent::ShortcutOverride: {
 764                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 765                 if (!d.current_work_area_) {
 766                         theLyXFunc().setLyXView(this);
 767                         KeySymbol sym;
 768                         setKeySymbol(&sym, ke);
 769                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 770                         e->accept();
 771                         return true;
 772                 }
 773                 if (ke->key() == Qt::Key_Tab || ke->key() == Qt::Key_Backtab) {
 774                         KeySymbol sym;
 775                         setKeySymbol(&sym, ke);
 776                         d.current_work_area_->processKeySym(sym, NoModifier);
 777                         e->accept();
 778                         return true;
 779                 }
 780         }
 781         default:
 782                 return QMainWindow::event(e);
 783         }
 784 }
 785
 786
 787 bool GuiView::focusNextPrevChild(bool /*next*/)
 788 {
 789         setFocus();
 790         return true;
 791 }
 792
 793
 794 void GuiView::showView()
 795 {
 796         setWindowTitle(qt_("LyX"));
 797         show();
 798         updateFloatingGeometry();
 799 }
 800
 801
 802 void GuiView::setBusy(bool yes)
 803 {
 804         if (d.current_work_area_) {
 805                 d.current_work_area_->setUpdatesEnabled(!yes);
 806                 if (yes)
 807                         d.current_work_area_->stopBlinkingCursor();
 808                 else
 809                         d.current_work_area_->startBlinkingCursor();
 810         }
 811
 812         if (yes)
 813                 QApplication::setOverrideCursor(Qt::WaitCursor);
 814         else
 815                 QApplication::restoreOverrideCursor();
 816 }
 817
 818
 819 GuiToolbar * GuiView::makeToolbar(ToolbarInfo const & tbinfo, bool newline)
 820 {
 821         GuiToolbar * toolBar = new GuiToolbar(tbinfo, *this);
 822
 823         if (tbinfo.flags & ToolbarInfo::TOP) {
 824                 if (newline)
 825                         addToolBarBreak(Qt::TopToolBarArea);
 826                 addToolBar(Qt::TopToolBarArea, toolBar);
 827         }
 828
 829         if (tbinfo.flags & ToolbarInfo::BOTTOM) {
 830 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 831 #if (QT_VERSION >= 0x040202)
 832                 if (newline)
 833                         addToolBarBreak(Qt::BottomToolBarArea);
 834 #endif
 835                 addToolBar(Qt::BottomToolBarArea, toolBar);
 836         }
 837
 838         if (tbinfo.flags & ToolbarInfo::LEFT) {
 839 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 840 #if (QT_VERSION >= 0x040202)
 841                 if (newline)
 842                         addToolBarBreak(Qt::LeftToolBarArea);
 843 #endif
 844                 addToolBar(Qt::LeftToolBarArea, toolBar);
 845         }
 846
 847         if (tbinfo.flags & ToolbarInfo::RIGHT) {
 848 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 849 #if (QT_VERSION >= 0x040202)
 850                 if (newline)
 851                         addToolBarBreak(Qt::RightToolBarArea);
 852 #endif
 853                 addToolBar(Qt::RightToolBarArea, toolBar);
 854         }
 855
 856         // The following does not work so I cannot restore to exact toolbar location
 857         /*
 858         ToolbarSection::ToolbarInfo & tbinfo = LyX::ref().session().toolbars().load(tbinfo.name);
 859         toolBar->move(tbinfo.posx, tbinfo.posy);
 860         */
 861
 862         return toolBar;
 863 }
 864
 865
 866 GuiWorkArea * GuiView::workArea(Buffer & buffer)
 867 {
 868         for (int i = 0; i != d.splitter_->count(); ++i) {
 869                 GuiWorkArea * wa = d.tabWorkArea(i)->workArea(buffer);
 870                 if (wa)
 871                         return wa;
 872         }
 873         return 0;
 874 }
 875
 876
 877 GuiWorkArea * GuiView::addWorkArea(Buffer & buffer)
 878 {
 879         GuiWorkArea * wa = new GuiWorkArea(buffer, *this);
 880         wa->setUpdatesEnabled(false);
 881
 882         // Automatically create a TabWorkArea if there are none yet.
 883         if (!d.splitter_->count())
 884                 addTabWorkArea();
 885
 886         TabWorkArea * tab_widget = d.currentTabWorkArea();
 887         tab_widget->addTab(wa, wa->windowTitle());
 888         QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
 889                 tab_widget, SLOT(updateTabText(GuiWorkArea *)));
 890
 891         wa->bufferView().updateMetrics();
 892
 893         // Hide tabbar if there's only one tab.
 894         tab_widget->showBar(tab_widget->count() > 1);
 895         return wa;
 896 }
 897
 898
 899 void GuiView::addTabWorkArea()
 900 {
 901         TabWorkArea * twa = new TabWorkArea;
 902         QObject::connect(twa, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
 903                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
 904         d.splitter_->addWidget(twa);
 905         d.stack_widget_->setCurrentWidget(d.splitter_);
 906 }
 907
 908
 909 GuiWorkArea * GuiView::currentWorkArea()
 910 {
 911         return d.current_work_area_;
 912 }
 913
 914
 915 GuiWorkArea const * GuiView::currentWorkArea() const
 916 {
 917         return d.current_work_area_;
 918 }
 919
 920
 921 void GuiView::setCurrentWorkArea(GuiWorkArea * work_area)
 922 {
 923         BOOST_ASSERT(work_area);
 924
 925         // Changing work area can result from opening a file so
 926         // update the toc in any case.
 927         updateToc();
 928
 929         GuiWorkArea * wa = static_cast<GuiWorkArea *>(work_area);
 930         d.current_work_area_ = wa;
 931         for (int i = 0; i != d.splitter_->count(); ++i) {
 932                 if (d.tabWorkArea(i)->setCurrentWorkArea(wa))
 933                         return;
 934         }
 935 }
 936
 937
 938 void GuiView::removeWorkArea(GuiWorkArea * work_area)
 939 {
 940         BOOST_ASSERT(work_area);
 941         GuiWorkArea * gwa = static_cast<GuiWorkArea *>(work_area);
 942         if (gwa == d.current_work_area_) {
 943                 disconnectBuffer();
 944                 disconnectBufferView();
 945                 getDialogs().hideBufferDependent();
 946                 d.current_work_area_ = 0;
 947         }
 948
 949         // removing a work area often results from closing a file so
 950         // update the toc in any case.
 951         updateToc();
 952
 953         for (int i = 0; i != d.splitter_->count(); ++i) {
 954                 TabWorkArea * twa = d.tabWorkArea(i);
 955                 if (!twa->removeWorkArea(gwa))
 956                         // Not found in this tab group.
 957                         continue;
 958
 959                 // We found and removed the GuiWorkArea.
 960                 if (twa->count()) {
 961                         // No more WorkAreas in this tab group, so delete it.
 962                         delete twa;
 963                         break;
 964                 }
 965
 966                 if (d.current_work_area_)
 967                         // This means that we are not closing the current GuiWorkArea;
 968                         break;
 969
 970                 // Switch to the next GuiWorkArea in the found TabWorkArea.
 971                 d.current_work_area_ = twa->currentWorkArea();
 972                 break;
 973         }
 974
 975         if (d.splitter_->count() == 0)
 976                 // No more work area, switch to the background widget.
 977                 d.setBackground();
 978 }
 979
 980
 981 void GuiView::showMiniBuffer(bool visible)
 982 {
 983         d.toolbars_->showCommandBuffer(visible);
 984 }
 985
 986
 987 void GuiView::openMenu(docstring const & name)
 988 {
 989         d.menubar_->openByName(toqstr(name));
 990 }
 991
 992
 993 void GuiView::openLayoutList()
 994 {
 995         d.toolbars_->openLayoutList();
 996 }
 997
 998
 999 void GuiView::updateLayoutChoice(bool force)
1000 {
1001         // Don't show any layouts without a buffer
1002         if (!buffer()) {
1003                 d.toolbars_->clearLayoutList();
1004                 return;
1005         }
1006
1007         // Update the layout display
1008         if (d.toolbars_->updateLayoutList(buffer()->params().getTextClassPtr(), force)) {
1009                 d.current_layout = buffer()->params().getTextClass().defaultLayoutName();
1010         }
1011
1012         docstring const & layout = d.current_work_area_->bufferView().cursor().
1013                 innerParagraph().layout()->name();
1014
1015         if (layout != d.current_layout) {
1016                 d.toolbars_->setLayout(layout);
1017                 d.current_layout = layout;
1018         }
1019 }
1020
1021
1022 bool GuiView::isToolbarVisible(std::string const & id)
1023 {
1024         return d.toolbars_->visible(id);
1025 }
1026
1027 void GuiView::updateToolbars()
1028 {
1029         if (d.current_work_area_) {
1030                 bool const math =
1031                         d.current_work_area_->bufferView().cursor().inMathed();
1032                 bool const table =
1033                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
1034                 bool const review =
1035                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
1036                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
1037
1038                 d.toolbars_->update(math, table, review);
1039         } else
1040                 d.toolbars_->update(false, false, false);
1041
1042         // update read-only status of open dialogs.
1043         getDialogs().checkStatus();
1044 }
1045
1046
1047 ToolbarInfo * GuiView::getToolbarInfo(string const & name)
1048 {
1049         return d.toolbars_->getToolbarInfo(name);
1050 }
1051
1052
1053 void GuiView::toggleToolbarState(string const & name, bool allowauto)
1054 {
1055         // it is possible to get current toolbar status like this,...
1056         // but I decide to obey the order of ToolbarBackend::flags
1057         // and disregard real toolbar status.
1058         // toolbars_->saveToolbarInfo();
1059         //
1060         // toggle state on/off/auto
1061         d.toolbars_->toggleToolbarState(name, allowauto);
1062         // update toolbar
1063         updateToolbars();
1064 }
1065
1066
1067 Buffer * GuiView::buffer()
1068 {
1069         if (d.current_work_area_)
1070                 return &d.current_work_area_->bufferView().buffer();
1071         return 0;
1072 }
1073
1074
1075 Buffer const * GuiView::buffer() const
1076 {
1077         if (d.current_work_area_)
1078                 return &d.current_work_area_->bufferView().buffer();
1079         return 0;
1080 }
1081
1082
1083 void GuiView::setBuffer(Buffer * newBuffer)
1084 {
1085         BOOST_ASSERT(newBuffer);
1086         setBusy(true);
1087
1088         GuiWorkArea * wa = workArea(*newBuffer);
1089         if (wa == 0) {
1090                 updateLabels(*newBuffer->masterBuffer());
1091                 wa = addWorkArea(*newBuffer);
1092         } else {
1093                 //Disconnect the old buffer...there's no new one.
1094                 disconnectBuffer();
1095         }
1096         connectBuffer(*newBuffer);
1097         connectBufferView(wa->bufferView());
1098         setCurrentWorkArea(wa);
1099
1100         setBusy(false);
1101 }
1102
1103
1104 Buffer * GuiView::loadLyXFile(FileName const & filename, bool tolastfiles)
1105 {
1106         setBusy(true);
1107
1108         Buffer * newBuffer = checkAndLoadLyXFile(filename);
1109
1110         if (!newBuffer) {
1111                 message(_("Document not loaded."));
1112                 updateStatusBar();
1113                 setBusy(false);
1114                 return 0;
1115         }
1116
1117         GuiWorkArea * wa = workArea(*newBuffer);
1118         if (wa == 0)
1119                 wa = addWorkArea(*newBuffer);
1120
1121         // scroll to the position when the file was last closed
1122         if (lyxrc.use_lastfilepos) {
1123                 LastFilePosSection::FilePos filepos =
1124                         LyX::ref().session().lastFilePos().load(filename);
1125                 // if successfully move to pit (returned par_id is not zero),
1126                 // update metrics and reset font
1127                 wa->bufferView().moveToPosition(filepos.pit, filepos.pos, 0, 0);
1128         }
1129
1130         if (tolastfiles)
1131                 LyX::ref().session().lastFiles().add(filename);
1132
1133         setBusy(false);
1134         return newBuffer;
1135 }
1136
1137
1138 void GuiView::connectBuffer(Buffer & buf)
1139 {
1140         buf.setGuiDelegate(this);
1141 }
1142
1143
1144 void GuiView::disconnectBuffer()
1145 {
1146         if (d.current_work_area_)
1147                 d.current_work_area_->bufferView().setGuiDelegate(0);
1148 }
1149
1150
1151 void GuiView::connectBufferView(BufferView & bv)
1152 {
1153         bv.setGuiDelegate(this);
1154 }
1155
1156
1157 void GuiView::disconnectBufferView()
1158 {
1159         if (d.current_work_area_)
1160                 d.current_work_area_->bufferView().setGuiDelegate(0);
1161 }
1162
1163
1164 void GuiView::errors(string const & error_type)
1165 {
1166         ErrorList & el = buffer()->errorList(error_type);
1167         if (!el.empty())
1168                 getDialogs().show("errorlist", error_type);
1169 }
1170
1171
1172 void GuiView::showDialog(string const & name)
1173 {
1174         getDialogs().show(name);
1175 }
1176
1177
1178 void GuiView::showDialogWithData(string const & name, string const & data)
1179 {
1180         getDialogs().show(name, data);
1181 }
1182
1183
1184 void GuiView::showInsetDialog(string const & name, string const & data,
1185                 Inset * inset)
1186 {
1187         getDialogs().show(name, data, inset);
1188 }
1189
1190
1191 void GuiView::updateDialog(string const & name, string const & data)
1192 {
1193         if (getDialogs().visible(name))
1194                 getDialogs().update(name, data);
1195 }
1196
1197
1198 BufferView * GuiView::view()
1199 {
1200         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1201 }
1202
1203
1204 void GuiView::updateToc()
1205 {
1206         updateDialog("toc", "");
1207 }
1208
1209
1210 void GuiView::updateEmbeddedFiles()
1211 {
1212         updateDialog("embedding", "");
1213 }
1214
1215
1216 void GuiView::autoSave()
1217 {
1218         LYXERR(Debug::INFO) << "Running autoSave()" << endl;
1219
1220         if (buffer())
1221                 view()->buffer().autoSave();
1222 }
1223
1224
1225 void GuiView::resetAutosaveTimers()
1226 {
1227         if (lyxrc.autosave)
1228                 autosave_timeout_->restart();
1229 }
1230
1231
1232 void GuiView::dispatch(FuncRequest const & cmd)
1233 {
1234         string const argument = to_utf8(cmd.argument());
1235         switch(cmd.action) {
1236                 case LFUN_BUFFER_SWITCH:
1237                         setBuffer(theBufferList().getBuffer(to_utf8(cmd.argument())));
1238                         break;
1239                 default:
1240                         theLyXFunc().setLyXView(this);
1241                         lyx::dispatch(cmd);
1242         }
1243 }
1244
1245
1246 Buffer const * GuiView::updateInset(Inset const * inset)
1247 {
1248         if (!d.current_work_area_)
1249                 return 0;
1250
1251         if (inset)
1252                 d.current_work_area_->scheduleRedraw();
1253
1254         return &d.current_work_area_->bufferView().buffer();
1255 }
1256
1257
1258 void GuiView::restartCursor()
1259 {
1260         /* When we move around, or type, it's nice to be able to see
1261          * the cursor immediately after the keypress.
1262          */
1263         if (d.current_work_area_)
1264                 d.current_work_area_->startBlinkingCursor();
1265 }
1266
1267 } // namespace frontend
1268 } // namespace lyx
1269
1270 #include "GuiView_moc.cpp"