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(string const & geometryArg)
 498 {
 499         // *******************************************
 500         // Beginning of the session handling stuff
 501
 502         //FIXME: Instead of the stuff below, we should use QSettings:
 503         /*
 504         QSettings settings;
 505         QString key = "view " + QString::number(id) + "/geometry";
 506         view.restoreGeometry(settings.value(key).toByteArray());
 507         */
 508
 509         // determine windows size and position, from lyxrc and/or session
 510         // initial geometry
 511         unsigned int width = 690;
 512         unsigned int height = 510;
 513         // default icon size, will be overwritten by  stored session value
 514         unsigned int iconSizeXY = 0;
 515         Maximized maximized = NotMaximized;
 516         SessionInfoSection & session = LyX::ref().session().sessionInfo();
 517
 518         // first try lyxrc
 519         if (lyxrc.geometry_width != 0 && lyxrc.geometry_height != 0 ) {
 520                 width = lyxrc.geometry_width;
 521                 height = lyxrc.geometry_height;
 522         }
 523         // if lyxrc returns (0,0), then use session info
 524         else {
 525                 string val = session.load("WindowWidth");
 526                 if (!val.empty())
 527                         width = convert<unsigned int>(val);
 528                 val = session.load("WindowHeight");
 529                 if (!val.empty())
 530                         height = convert<unsigned int>(val);
 531                 val = session.load("WindowMaximized");
 532                 if (!val.empty())
 533                         maximized = GuiView::Maximized(convert<int>(val));
 534                 val = session.load("IconSizeXY");
 535                 if (!val.empty())
 536                         iconSizeXY = convert<unsigned int>(val);
 537         }
 538
 539         // if user wants to restore window position
 540         int posx = -1;
 541         int posy = -1;
 542         if (lyxrc.geometry_xysaved) {
 543                 string val = session.load("WindowPosX");
 544                 if (!val.empty())
 545                         posx = convert<int>(val);
 546                 val = session.load("WindowPosY");
 547                 if (!val.empty())
 548                         posy = convert<int>(val);
 549         }
 550
 551         if (!geometryArg.empty())
 552         {
 553                 width = 0;
 554                 height = 0;
 555         }
 556
 557         // End of the sesssion handling stuff
 558         // *******************************************
 559
 560         // use last value (not at startup)
 561         if (d.lastIconSize != 0)
 562                 setIconSize(d.lastIconSize);
 563         else if (iconSizeXY != 0)
 564                 setIconSize(iconSizeXY);
 565         else
 566                 setIconSize(d.normalIconSize);
 567
 568         // only true when the -geometry option was NOT used
 569         if (width != 0 && height != 0) {
 570                 if (posx != -1 && posy != -1) {
 571                         // if there are startup positioning problems:
 572                         // http://doc.trolltech.com/4.2/qdesktopwidget.html
 573                         QDesktopWidget& dw = *qApp->desktop();
 574                         if (dw.isVirtualDesktop()) {
 575                                 if(!dw.geometry().contains(posx, posy)) {
 576                                         posx = 50;
 577                                         posy = 50;
 578                                 }
 579                         } else {
 580                                 // Which system doesn't use a virtual desktop?
 581                                 // TODO save also last screen number and check if it is still availabe.
 582                         }
 583 #ifdef Q_WS_WIN
 584                         // FIXME: use setGeometry only when Trolltech has fixed the qt4/X11 bug
 585                         QWidget::setGeometry(posx, posy, width, height);
 586 #else
 587                         resize(width, height);
 588                         move(posx, posy);
 589 #endif
 590                 } else {
 591                         resize(width, height);
 592                 }
 593
 594                 // remember original size
 595                 floatingGeometry_ = QRect(posx, posy, width, height);
 596
 597                 if (maximized != NotMaximized) {
 598                         if (maximized == CompletelyMaximized) {
 599                                 setWindowState(Qt::WindowMaximized);
 600                         } else {
 601 #ifndef Q_WS_WIN
 602                                 // TODO How to set by the window manager?
 603                                 //      setWindowState(Qt::WindowVerticallyMaximized);
 604                                 //      is not possible
 605                                 QDesktopWidget& dw = *qApp->desktop();
 606                                 QRect desk = dw.availableGeometry(dw.primaryScreen());
 607                                 if (maximized == VerticallyMaximized)
 608                                         resize(width, desk.height());
 609                                 if (maximized == HorizontallyMaximized)
 610                                         resize(desk.width(), height);
 611 #endif
 612                         }
 613                 }
 614         }
 615         else
 616         {
 617                 // FIXME: move this code into parse_geometry() (LyX.cpp)
 618 #ifdef Q_WS_WIN
 619                 int x, y;
 620                 int w, h;
 621                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 622                 re.indexIn(toqstr(geometryArg.c_str()));
 623                 w = re.cap(1).toInt();
 624                 h = re.cap(2).toInt();
 625                 x = re.cap(3).toInt();
 626                 y = re.cap(4).toInt();
 627                 QWidget::setGeometry( x, y, w, h );
 628 #else
 629                 // silence warning
 630                 (void)geometryArg;
 631 #endif
 632         }
 633
 634         d.setBackground();
 635
 636         show();
 637
 638         // after show geometry() has changed (Qt bug?)
 639         // we compensate the drift when storing the position
 640         d.posx_offset = 0;
 641         d.posy_offset = 0;
 642         if (width != 0 && height != 0)
 643                 if (posx != -1 && posy != -1) {
 644 #ifdef Q_WS_WIN
 645                         d.posx_offset = posx - normalGeometry().x();
 646                         d.posy_offset = posy - normalGeometry().y();
 647 #else
 648 #ifndef Q_WS_MACX
 649                         if (maximized == NotMaximized) {
 650                                 d.posx_offset = posx - geometry().x();
 651                                 d.posy_offset = posy - geometry().y();
 652                         }
 653 #endif
 654 #endif
 655                 }
 656 }
 657
 658
 659 void GuiView::message(docstring const & str)
 660 {
 661         statusBar()->showMessage(toqstr(str));
 662         statusbar_timer_.stop();
 663         statusbar_timer_.start(statusbar_timer_value);
 664 }
 665
 666
 667 void GuiView::setIconSize(unsigned int size)
 668 {
 669         d.lastIconSize = size;
 670         QMainWindow::setIconSize(QSize(size, size));
 671 }
 672
 673
 674 void GuiView::smallSizedIcons()
 675 {
 676         setIconSize(d.smallIconSize);
 677 }
 678
 679
 680 void GuiView::normalSizedIcons()
 681 {
 682         setIconSize(d.normalIconSize);
 683 }
 684
 685
 686 void GuiView::bigSizedIcons()
 687 {
 688         setIconSize(d.bigIconSize);
 689 }
 690
 691
 692 void GuiView::clearMessage()
 693 {
 694         if (!hasFocus())
 695                 return;
 696         theLyXFunc().setLyXView(this);
 697         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 698         statusbar_timer_.stop();
 699 }
 700
 701
 702 void GuiView::updateWindowTitle(GuiWorkArea * wa)
 703 {
 704         if (wa != d.current_work_area_)
 705                 return;
 706         setWindowTitle(qt_("LyX: ") + wa->windowTitle());
 707         setWindowIconText(wa->windowIconText());
 708 }
 709
 710
 711 void GuiView::on_currentWorkAreaChanged(GuiWorkArea * wa)
 712 {
 713         disconnectBuffer();
 714         disconnectBufferView();
 715         connectBufferView(wa->bufferView());
 716         connectBuffer(wa->bufferView().buffer());
 717         d.current_work_area_ = wa;
 718         QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
 719                 this, SLOT(updateWindowTitle(GuiWorkArea *)));
 720         updateWindowTitle(wa);
 721
 722         updateToc();
 723         // Buffer-dependent dialogs should be updated or
 724         // hidden. This should go here because some dialogs (eg ToC)
 725         // require bv_->text.
 726         dialogs_->updateBufferDependent(true);
 727         updateToolbars();
 728         updateLayoutChoice(false);
 729         updateStatusBar();
 730 }
 731
 732
 733 void GuiView::updateStatusBar()
 734 {
 735         // let the user see the explicit message
 736         if (statusbar_timer_.isActive())
 737                 return;
 738
 739         statusBar()->showMessage(toqstr(theLyXFunc().viewStatusMessage()));
 740 }
 741
 742
 743 bool GuiView::hasFocus() const
 744 {
 745         return qApp->activeWindow() == this;
 746 }
 747
 748
 749 QRect  GuiView::updateFloatingGeometry()
 750 {
 751         QDesktopWidget& dw = *qApp->desktop();
 752         QRect desk = dw.availableGeometry(dw.primaryScreen());
 753         // remember only non-maximized sizes
 754         if (!isMaximized() && desk.width() > frameGeometry().width() && desk.height() > frameGeometry().height()) {
 755                 floatingGeometry_ = QRect(x(), y(), width(), height());
 756         }
 757         return floatingGeometry_;
 758 }
 759
 760
 761 void GuiView::resizeEvent(QResizeEvent *)
 762 {
 763         updateFloatingGeometry();
 764 }
 765
 766
 767 void GuiView::moveEvent(QMoveEvent *)
 768 {
 769         updateFloatingGeometry();
 770 }
 771
 772
 773 bool GuiView::event(QEvent * e)
 774 {
 775         switch (e->type())
 776         {
 777         // Useful debug code:
 778         //case QEvent::ActivationChange:
 779         //case QEvent::WindowDeactivate:
 780         //case QEvent::Paint:
 781         //case QEvent::Enter:
 782         //case QEvent::Leave:
 783         //case QEvent::HoverEnter:
 784         //case QEvent::HoverLeave:
 785         //case QEvent::HoverMove:
 786         //case QEvent::StatusTip:
 787         //case QEvent::DragEnter:
 788         //case QEvent::DragLeave:
 789         //case QEvent::Drop:
 790         //      break;
 791
 792         case QEvent::WindowActivate: {
 793                 theApp()->setCurrentView(*this);
 794                 if (d.current_work_area_) {
 795                         BufferView & bv = d.current_work_area_->bufferView();
 796                         connectBufferView(bv);
 797                         connectBuffer(bv.buffer());
 798                         // The document structure, name and dialogs might have
 799                         // changed in another view.
 800                         dialogs_->updateBufferDependent(true);
 801                 } else {
 802                         setWindowTitle(qt_("LyX"));
 803                         setWindowIconText(qt_("LyX"));
 804                 }
 805                 return QMainWindow::event(e);
 806         }
 807         case QEvent::ShortcutOverride: {
 808                 QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 809                 if (!d.current_work_area_) {
 810                         theLyXFunc().setLyXView(this);
 811                         KeySymbol sym;
 812                         setKeySymbol(&sym, ke);
 813                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 814                         e->accept();
 815                         return true;
 816                 }
 817                 if (ke->key() == Qt::Key_Tab || ke->key() == Qt::Key_Backtab) {
 818                         KeySymbol sym;
 819                         setKeySymbol(&sym, ke);
 820                         d.current_work_area_->processKeySym(sym, NoModifier);
 821                         e->accept();
 822                         return true;
 823                 }
 824         }
 825         default:
 826                 return QMainWindow::event(e);
 827         }
 828 }
 829
 830
 831 bool GuiView::focusNextPrevChild(bool /*next*/)
 832 {
 833         setFocus();
 834         return true;
 835 }
 836
 837
 838 void GuiView::setBusy(bool yes)
 839 {
 840         if (d.current_work_area_) {
 841                 d.current_work_area_->setUpdatesEnabled(!yes);
 842                 if (yes)
 843                         d.current_work_area_->stopBlinkingCursor();
 844                 else
 845                         d.current_work_area_->startBlinkingCursor();
 846         }
 847
 848         if (yes)
 849                 QApplication::setOverrideCursor(Qt::WaitCursor);
 850         else
 851                 QApplication::restoreOverrideCursor();
 852 }
 853
 854
 855 GuiToolbar * GuiView::makeToolbar(ToolbarInfo const & tbinfo, bool newline)
 856 {
 857         GuiToolbar * toolBar = new GuiToolbar(tbinfo, *this);
 858
 859         if (tbinfo.flags & ToolbarInfo::TOP) {
 860                 if (newline)
 861                         addToolBarBreak(Qt::TopToolBarArea);
 862                 addToolBar(Qt::TopToolBarArea, toolBar);
 863         }
 864
 865         if (tbinfo.flags & ToolbarInfo::BOTTOM) {
 866 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 867 #if (QT_VERSION >= 0x040202)
 868                 if (newline)
 869                         addToolBarBreak(Qt::BottomToolBarArea);
 870 #endif
 871                 addToolBar(Qt::BottomToolBarArea, toolBar);
 872         }
 873
 874         if (tbinfo.flags & ToolbarInfo::LEFT) {
 875 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 876 #if (QT_VERSION >= 0x040202)
 877                 if (newline)
 878                         addToolBarBreak(Qt::LeftToolBarArea);
 879 #endif
 880                 addToolBar(Qt::LeftToolBarArea, toolBar);
 881         }
 882
 883         if (tbinfo.flags & ToolbarInfo::RIGHT) {
 884 // Qt < 4.2.2 cannot handle ToolBarBreak on non-TOP dock.
 885 #if (QT_VERSION >= 0x040202)
 886                 if (newline)
 887                         addToolBarBreak(Qt::RightToolBarArea);
 888 #endif
 889                 addToolBar(Qt::RightToolBarArea, toolBar);
 890         }
 891
 892         // The following does not work so I cannot restore to exact toolbar location
 893         /*
 894         ToolbarSection::ToolbarInfo & tbinfo = LyX::ref().session().toolbars().load(tbinfo.name);
 895         toolBar->move(tbinfo.posx, tbinfo.posy);
 896         */
 897
 898         return toolBar;
 899 }
 900
 901
 902 GuiWorkArea * GuiView::workArea(Buffer & buffer)
 903 {
 904         for (int i = 0; i != d.splitter_->count(); ++i) {
 905                 GuiWorkArea * wa = d.tabWorkArea(i)->workArea(buffer);
 906                 if (wa)
 907                         return wa;
 908         }
 909         return 0;
 910 }
 911
 912
 913 GuiWorkArea * GuiView::addWorkArea(Buffer & buffer)
 914 {
 915         GuiWorkArea * wa = new GuiWorkArea(buffer, *this);
 916         wa->setUpdatesEnabled(false);
 917
 918         // Automatically create a TabWorkArea if there are none yet.
 919         if (!d.splitter_->count())
 920                 addTabWorkArea();
 921
 922         TabWorkArea * tab_widget = d.currentTabWorkArea();
 923         tab_widget->addTab(wa, wa->windowTitle());
 924         QObject::connect(wa, SIGNAL(titleChanged(GuiWorkArea *)),
 925                 tab_widget, SLOT(updateTabText(GuiWorkArea *)));
 926
 927         wa->bufferView().updateMetrics();
 928
 929         // Hide tabbar if there's only one tab.
 930         tab_widget->showBar(tab_widget->count() > 1);
 931         return wa;
 932 }
 933
 934
 935 void GuiView::addTabWorkArea()
 936 {
 937         TabWorkArea * twa = new TabWorkArea;
 938         QObject::connect(twa, SIGNAL(currentWorkAreaChanged(GuiWorkArea *)),
 939                 this, SLOT(on_currentWorkAreaChanged(GuiWorkArea *)));
 940         d.splitter_->addWidget(twa);
 941         d.stack_widget_->setCurrentWidget(d.splitter_);
 942 }
 943
 944
 945 GuiWorkArea const * GuiView::currentWorkArea() const
 946 {
 947         return d.current_work_area_;
 948 }
 949
 950
 951 void GuiView::setCurrentWorkArea(GuiWorkArea * work_area)
 952 {
 953         BOOST_ASSERT(work_area);
 954
 955         // Changing work area can result from opening a file so
 956         // update the toc in any case.
 957         updateToc();
 958
 959         GuiWorkArea * wa = static_cast<GuiWorkArea *>(work_area);
 960         d.current_work_area_ = wa;
 961         for (int i = 0; i != d.splitter_->count(); ++i) {
 962                 if (d.tabWorkArea(i)->setCurrentWorkArea(wa))
 963                         return;
 964         }
 965 }
 966
 967
 968 void GuiView::removeWorkArea(GuiWorkArea * work_area)
 969 {
 970         BOOST_ASSERT(work_area);
 971         GuiWorkArea * gwa = static_cast<GuiWorkArea *>(work_area);
 972         if (gwa == d.current_work_area_) {
 973                 disconnectBuffer();
 974                 disconnectBufferView();
 975                 dialogs_->hideBufferDependent();
 976                 d.current_work_area_ = 0;
 977         }
 978
 979         // removing a work area often results from closing a file so
 980         // update the toc in any case.
 981         updateToc();
 982
 983         for (int i = 0; i != d.splitter_->count(); ++i) {
 984                 TabWorkArea * twa = d.tabWorkArea(i);
 985                 if (!twa->removeWorkArea(gwa))
 986                         // Not found in this tab group.
 987                         continue;
 988
 989                 // We found and removed the GuiWorkArea.
 990                 if (!twa->count()) {
 991                         // No more WorkAreas in this tab group, so delete it.
 992                         delete twa;
 993                         break;
 994                 }
 995
 996                 if (d.current_work_area_)
 997                         // This means that we are not closing the current GuiWorkArea;
 998                         break;
 999
1000                 // Switch to the next GuiWorkArea in the found TabWorkArea.
1001                 d.current_work_area_ = twa->currentWorkArea();
1002                 break;
1003         }
1004
1005         if (d.splitter_->count() == 0)
1006                 // No more work area, switch to the background widget.
1007                 d.setBackground();
1008 }
1009
1010
1011 void GuiView::updateLayoutChoice(bool force)
1012 {
1013         // Don't show any layouts without a buffer
1014         if (!buffer()) {
1015                 d.toolbars_->clearLayoutList();
1016                 return;
1017         }
1018
1019         // Update the layout display
1020         if (d.toolbars_->updateLayoutList(buffer()->params().getTextClassPtr(), force)) {
1021                 d.current_layout = buffer()->params().getTextClass().defaultLayoutName();
1022         }
1023
1024         docstring const & layout = d.current_work_area_->bufferView().cursor().
1025                 innerParagraph().layout()->name();
1026
1027         if (layout != d.current_layout) {
1028                 d.toolbars_->setLayout(layout);
1029                 d.current_layout = layout;
1030         }
1031 }
1032
1033
1034 bool GuiView::isToolbarVisible(std::string const & id)
1035 {
1036         return d.toolbars_->visible(id);
1037 }
1038
1039 void GuiView::updateToolbars()
1040 {
1041         if (d.current_work_area_) {
1042                 bool const math =
1043                         d.current_work_area_->bufferView().cursor().inMathed();
1044                 bool const table =
1045                         lyx::getStatus(FuncRequest(LFUN_LAYOUT_TABULAR)).enabled();
1046                 bool const review =
1047                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).enabled() &&
1048                         lyx::getStatus(FuncRequest(LFUN_CHANGES_TRACK)).onoff(true);
1049
1050                 d.toolbars_->update(math, table, review);
1051         } else
1052                 d.toolbars_->update(false, false, false);
1053
1054         // update read-only status of open dialogs.
1055         dialogs_->checkStatus();
1056 }
1057
1058
1059 Buffer * GuiView::buffer()
1060 {
1061         if (d.current_work_area_)
1062                 return &d.current_work_area_->bufferView().buffer();
1063         return 0;
1064 }
1065
1066
1067 Buffer const * GuiView::buffer() const
1068 {
1069         if (d.current_work_area_)
1070                 return &d.current_work_area_->bufferView().buffer();
1071         return 0;
1072 }
1073
1074
1075 void GuiView::setBuffer(Buffer * newBuffer)
1076 {
1077         BOOST_ASSERT(newBuffer);
1078         setBusy(true);
1079
1080         GuiWorkArea * wa = workArea(*newBuffer);
1081         if (wa == 0) {
1082                 updateLabels(*newBuffer->masterBuffer());
1083                 wa = addWorkArea(*newBuffer);
1084         } else {
1085                 //Disconnect the old buffer...there's no new one.
1086                 disconnectBuffer();
1087         }
1088         connectBuffer(*newBuffer);
1089         connectBufferView(wa->bufferView());
1090         setCurrentWorkArea(wa);
1091
1092         setBusy(false);
1093 }
1094
1095
1096 Buffer * GuiView::loadLyXFile(FileName const & filename, bool tolastfiles)
1097 {
1098         setBusy(true);
1099
1100         Buffer * newBuffer = checkAndLoadLyXFile(filename);
1101
1102         if (!newBuffer) {
1103                 message(_("Document not loaded."));
1104                 updateStatusBar();
1105                 setBusy(false);
1106                 return 0;
1107         }
1108
1109         GuiWorkArea * wa = workArea(*newBuffer);
1110         if (wa == 0)
1111                 wa = addWorkArea(*newBuffer);
1112
1113         // scroll to the position when the file was last closed
1114         if (lyxrc.use_lastfilepos) {
1115                 LastFilePosSection::FilePos filepos =
1116                         LyX::ref().session().lastFilePos().load(filename);
1117                 // if successfully move to pit (returned par_id is not zero),
1118                 // update metrics and reset font
1119                 wa->bufferView().moveToPosition(filepos.pit, filepos.pos, 0, 0);
1120         }
1121
1122         if (tolastfiles)
1123                 LyX::ref().session().lastFiles().add(filename);
1124
1125         setBusy(false);
1126         return newBuffer;
1127 }
1128
1129
1130 void GuiView::connectBuffer(Buffer & buf)
1131 {
1132         buf.setGuiDelegate(this);
1133 }
1134
1135
1136 void GuiView::disconnectBuffer()
1137 {
1138         if (d.current_work_area_)
1139                 d.current_work_area_->bufferView().setGuiDelegate(0);
1140 }
1141
1142
1143 void GuiView::connectBufferView(BufferView & bv)
1144 {
1145         bv.setGuiDelegate(this);
1146 }
1147
1148
1149 void GuiView::disconnectBufferView()
1150 {
1151         if (d.current_work_area_)
1152                 d.current_work_area_->bufferView().setGuiDelegate(0);
1153 }
1154
1155
1156 void GuiView::errors(string const & error_type)
1157 {
1158         ErrorList & el = buffer()->errorList(error_type);
1159         if (!el.empty())
1160                 dialogs_->show("errorlist", error_type);
1161 }
1162
1163
1164 void GuiView::showDialog(string const & name)
1165 {
1166         dialogs_->show(name);
1167 }
1168
1169
1170 void GuiView::showDialogWithData(string const & name, string const & data)
1171 {
1172         dialogs_->show(name, data);
1173 }
1174
1175
1176 void GuiView::showInsetDialog(string const & name, string const & data,
1177                 Inset * inset)
1178 {
1179         dialogs_->show(name, data, inset);
1180 }
1181
1182
1183 void GuiView::updateDialog(string const & name, string const & data)
1184 {
1185         if (dialogs_->visible(name))
1186                 dialogs_->update(name, data);
1187 }
1188
1189
1190 BufferView * GuiView::view()
1191 {
1192         return d.current_work_area_ ? &d.current_work_area_->bufferView() : 0;
1193 }
1194
1195
1196 void GuiView::updateToc()
1197 {
1198         updateDialog("toc", "");
1199 }
1200
1201
1202 void GuiView::updateEmbeddedFiles()
1203 {
1204         updateDialog("embedding", "");
1205 }
1206
1207
1208 void GuiView::autoSave()
1209 {
1210         LYXERR(Debug::INFO) << "Running autoSave()" << endl;
1211
1212         if (buffer())
1213                 view()->buffer().autoSave();
1214 }
1215
1216
1217 void GuiView::resetAutosaveTimers()
1218 {
1219         if (lyxrc.autosave)
1220                 autosave_timeout_->restart();
1221 }
1222
1223
1224 void GuiView::dispatch(FuncRequest const & cmd)
1225 {
1226         switch(cmd.action) {
1227                 case LFUN_BUFFER_SWITCH:
1228                         setBuffer(theBufferList().getBuffer(to_utf8(cmd.argument())));
1229                         break;
1230
1231                 case LFUN_COMMAND_EXECUTE: {
1232                         bool const show_it = cmd.argument() != "off";
1233                         d.toolbars_->showCommandBuffer(show_it);
1234                         break;
1235                 }
1236                 case LFUN_DROP_LAYOUTS_CHOICE:
1237                         d.toolbars_->openLayoutList();
1238                         break;
1239
1240                 case LFUN_MENU_OPEN:
1241                         d.menubar_->openByName(toqstr(cmd.argument()));
1242                         break;
1243
1244                 case LFUN_TOOLBAR_TOGGLE: {
1245                         string const name = cmd.getArg(0);
1246                         bool const allowauto = cmd.getArg(1) == "allowauto";
1247                         // it is possible to get current toolbar status like this,...
1248                         // but I decide to obey the order of ToolbarBackend::flags
1249                         // and disregard real toolbar status.
1250                         // toolbars_->saveToolbarInfo();
1251                         //
1252                         // toggle state on/off/auto
1253                         d.toolbars_->toggleToolbarState(name, allowauto);
1254                         // update toolbar
1255                         updateToolbars();
1256
1257                         ToolbarInfo * tbi = d.toolbars_->getToolbarInfo(name);
1258                         if (!tbi) {
1259                                 message(bformat(_("Unknown toolbar \"%1$s\""), from_utf8(name)));
1260                                 break;
1261                         }
1262                         docstring state;
1263                         if (tbi->flags & ToolbarInfo::ON)
1264                                 state = _("on");
1265                         else if (tbi->flags & ToolbarInfo::OFF)
1266                                 state = _("off");
1267                         else if (tbi->flags & ToolbarInfo::AUTO)
1268                                 state = _("auto");
1269
1270                         message(bformat(_("Toolbar \"%1$s\" state set to %2$s"),
1271                                            _(tbi->gui_name), state));
1272                         break;
1273                 }
1274
1275                 default:
1276                         theLyXFunc().setLyXView(this);
1277                         lyx::dispatch(cmd);
1278         }
1279 }
1280
1281
1282 Buffer const * GuiView::updateInset(Inset const * inset)
1283 {
1284         if (!d.current_work_area_)
1285                 return 0;
1286
1287         if (inset)
1288                 d.current_work_area_->scheduleRedraw();
1289
1290         return &d.current_work_area_->bufferView().buffer();
1291 }
1292
1293
1294 void GuiView::restartCursor()
1295 {
1296         /* When we move around, or type, it's nice to be able to see
1297          * the cursor immediately after the keypress.
1298          */
1299         if (d.current_work_area_)
1300                 d.current_work_area_->startBlinkingCursor();
1301 }
1302
1303 } // namespace frontend
1304 } // namespace lyx
1305
1306 #include "GuiView_moc.cpp"