src/frontends/qt4/GuiApplication.cpp

   1 /**
   2  * \file GuiApplication.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author unknown
   7  * \author John Levon
   8  * \author Abdelrazak Younes
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #include <config.h>
  14
  15 #include "GuiApplication.h"
  16
  17 #include "ColorCache.h"
  18 #include "GuiClipboard.h"
  19 #include "GuiImage.h"
  20 #include "GuiKeySymbol.h"
  21 #include "GuiSelection.h"
  22 #include "GuiView.h"
  23 #include "Menus.h"
  24 #include "qt_helpers.h"
  25 #include "Toolbars.h"
  26
  27 #include "frontends/alert.h"
  28 #include "frontends/Application.h"
  29 #include "frontends/FontLoader.h"
  30 #include "frontends/FontMetrics.h"
  31
  32 #include "Buffer.h"
  33 #include "BufferList.h"
  34 #include "BufferView.h"
  35 #include "Color.h"
  36 #include "Font.h"
  37 #include "FuncRequest.h"
  38 #include "FuncStatus.h"
  39 #include "Language.h"
  40 #include "Lexer.h"
  41 #include "LyX.h"
  42 #include "LyXAction.h"
  43 #include "LyXFunc.h"
  44 #include "LyXRC.h"
  45 #include "Session.h"
  46 #include "version.h"
  47
  48 #include "support/lassert.h"
  49 #include "support/debug.h"
  50 #include "support/ExceptionMessage.h"
  51 #include "support/FileName.h"
  52 #include "support/foreach.h"
  53 #include "support/ForkedCalls.h"
  54 #include "support/gettext.h"
  55 #include "support/lstrings.h"
  56 #include "support/lyxalgo.h" // sorted
  57 #include "support/Messages.h"
  58 #include "support/os.h"
  59 #include "support/Package.h"
  60
  61 #ifdef Q_WS_MACX
  62 #include "support/linkback/LinkBackProxy.h"
  63 #endif
  64
  65 #include <queue>
  66
  67 #include <QByteArray>
  68 #include <QClipboard>
  69 #include <QDateTime>
  70 #include <QDir>
  71 #include <QEventLoop>
  72 #include <QFileOpenEvent>
  73 #include <QFileInfo>
  74 #include <QHash>
  75 #include <QIcon>
  76 #include <QImageReader>
  77 #include <QLocale>
  78 #include <QLibraryInfo>
  79 #include <QList>
  80 #include <QMacPasteboardMime>
  81 #include <QMenuBar>
  82 #include <QMimeData>
  83 #include <QObject>
  84 #include <QPixmap>
  85 #include <QPixmapCache>
  86 #include <QRegExp>
  87 #include <QSessionManager>
  88 #include <QSettings>
  89 #include <QSocketNotifier>
  90 #include <QSortFilterProxyModel>
  91 #include <QStandardItemModel>
  92 #include <QTextCodec>
  93 #include <QTimer>
  94 #include <QTranslator>
  95 #include <QWidget>
  96
  97 #ifdef Q_WS_X11
  98 #include <X11/Xatom.h>
  99 #include <X11/Xlib.h>
 100 #undef CursorShape
 101 #undef None
 102 #endif
 103
 104 #ifdef Q_WS_WIN
 105 #include <QWindowsMime>
 106 #ifdef Q_CC_GNU
 107 #include <wtypes.h>
 108 #endif
 109 #include <objidl.h>
 110 #endif // Q_WS_WIN
 111
 112 #include <boost/bind.hpp>
 113 #include <boost/crc.hpp>
 114
 115 #include <exception>
 116 #include <vector>
 117
 118 using namespace std;
 119 using namespace lyx::support;
 120
 121
 122 static void initializeResources()
 123 {
 124         static bool initialized = false;
 125         if (!initialized) {
 126                 Q_INIT_RESOURCE(Resources);
 127                 initialized = true;
 128         }
 129 }
 130
 131
 132 namespace lyx {
 133
 134 frontend::Application * createApplication(int & argc, char * argv[])
 135 {
 136 #ifndef Q_WS_X11
 137         // prune -geometry argument(s) by shifting
 138         // the following ones 2 places down.
 139         for (int i = 0 ; i < argc ; ++i) {
 140                 if (strcmp(argv[i], "-geometry") == 0) {
 141                         int const remove = (i+1) < argc ? 2 : 1;
 142                         argc -= remove;
 143                         for (int j = i; j < argc; ++j)
 144                                 argv[j] = argv[j + remove];
 145                         --i;
 146                 }
 147         }
 148 #endif
 149         return new frontend::GuiApplication(argc, argv);
 150 }
 151
 152 namespace frontend {
 153
 154
 155 /// Return the list of loadable formats.
 156 vector<string> loadableImageFormats()
 157 {
 158         vector<string> fmts;
 159
 160         QList<QByteArray> qt_formats = QImageReader::supportedImageFormats();
 161
 162         LYXERR(Debug::GRAPHICS,
 163                 "\nThe image loader can load the following directly:\n");
 164
 165         if (qt_formats.empty())
 166                 LYXERR(Debug::GRAPHICS, "\nQt4 Problem: No Format available!");
 167
 168         for (QList<QByteArray>::const_iterator it = qt_formats.begin(); it != qt_formats.end(); ++it) {
 169
 170                 LYXERR(Debug::GRAPHICS, (const char *) *it << ", ");
 171
 172                 string ext = ascii_lowercase((const char *) *it);
 173                 // special case
 174                 if (ext == "jpeg")
 175                         ext = "jpg";
 176                 fmts.push_back(ext);
 177         }
 178
 179         return fmts;
 180 }
 181
 182
 183 ////////////////////////////////////////////////////////////////////////
 184 // Icon loading support code.
 185 ////////////////////////////////////////////////////////////////////////
 186
 187 namespace {
 188
 189 struct PngMap {
 190         QString key;
 191         QString value;
 192 };
 193
 194
 195 bool operator<(PngMap const & lhs, PngMap const & rhs)
 196 {
 197         return lhs.key < rhs.key;
 198 }
 199
 200
 201 class CompareKey {
 202 public:
 203         CompareKey(QString const & name) : name_(name) {}
 204         bool operator()(PngMap const & other) const { return other.key == name_; }
 205 private:
 206         QString const name_;
 207 };
 208
 209
 210 // this must be sorted alphabetically
 211 // Upper case comes before lower case
 212 PngMap sorted_png_map[] = {
 213         { "Bumpeq", "bumpeq2" },
 214         { "Cap", "cap2" },
 215         { "Cup", "cup2" },
 216         { "Delta", "delta2" },
 217         { "Downarrow", "downarrow2" },
 218         { "Gamma", "gamma2" },
 219         { "Lambda", "lambda2" },
 220         { "Leftarrow", "leftarrow2" },
 221         { "Leftrightarrow", "leftrightarrow2" },
 222         { "Longleftarrow", "longleftarrow2" },
 223         { "Longleftrightarrow", "longleftrightarrow2" },
 224         { "Longrightarrow", "longrightarrow2" },
 225         { "Omega", "omega2" },
 226         { "Phi", "phi2" },
 227         { "Pi", "pi2" },
 228         { "Psi", "psi2" },
 229         { "Rightarrow", "rightarrow2" },
 230         { "Sigma", "sigma2" },
 231         { "Subset", "subset2" },
 232         { "Supset", "supset2" },
 233         { "Theta", "theta2" },
 234         { "Uparrow", "uparrow2" },
 235         { "Updownarrow", "updownarrow2" },
 236         { "Upsilon", "upsilon2" },
 237         { "Vdash", "vdash3" },
 238         { "Vert", "vert2" },
 239         { "Xi", "xi2" },
 240         { "nLeftarrow", "nleftarrow2" },
 241         { "nLeftrightarrow", "nleftrightarrow2" },
 242         { "nRightarrow", "nrightarrow2" },
 243         { "nVDash", "nvdash3" },
 244         { "nvDash", "nvdash2" },
 245         { "textrm \\AA", "textrm_AA"},
 246         { "textrm \\O", "textrm_O"},
 247         { "vDash", "vdash2" }
 248 };
 249
 250 size_t const nr_sorted_png_map = sizeof(sorted_png_map) / sizeof(PngMap);
 251
 252
 253 QString findPng(QString const & name)
 254 {
 255         PngMap const * const begin = sorted_png_map;
 256         PngMap const * const end = begin + nr_sorted_png_map;
 257         LASSERT(sorted(begin, end), /**/);
 258
 259         PngMap const * const it = find_if(begin, end, CompareKey(name));
 260
 261         QString png_name;
 262         if (it != end) {
 263                 png_name = it->value;
 264         } else {
 265                 png_name = name;
 266                 png_name.replace('_', "underscore");
 267                 png_name.replace(' ', '_');
 268
 269                 // This way we can have "math-delim { }" on the toolbar.
 270                 png_name.replace('(', "lparen");
 271                 png_name.replace(')', "rparen");
 272                 png_name.replace('[', "lbracket");
 273                 png_name.replace(']', "rbracket");
 274                 png_name.replace('{', "lbrace");
 275                 png_name.replace('}', "rbrace");
 276                 png_name.replace('|', "bars");
 277                 png_name.replace(',', "thinspace");
 278                 png_name.replace(':', "mediumspace");
 279                 png_name.replace(';', "thickspace");
 280                 png_name.replace('!', "negthinspace");
 281         }
 282
 283         LYXERR(Debug::GUI, "findPng(" << name << ")\n"
 284                 << "Looking for math PNG called \"" << png_name << '"');
 285         return png_name;
 286 }
 287
 288 } // namespace anon
 289
 290
 291 QString iconName(FuncRequest const & f, bool unknown)
 292 {
 293         initializeResources();
 294         QString name1;
 295         QString name2;
 296         QString path;
 297         switch (f.action) {
 298         case LFUN_MATH_INSERT:
 299                 if (!f.argument().empty()) {
 300                         path = "math/";
 301                         name1 = findPng(toqstr(f.argument()).mid(1));
 302                 }
 303                 break;
 304         case LFUN_MATH_DELIM:
 305         case LFUN_MATH_BIGDELIM:
 306                 path = "math/";
 307                 name1 = findPng(toqstr(f.argument()));
 308                 break;
 309         case LFUN_CALL:
 310                 path = "commands/";
 311                 name1 = toqstr(f.argument());
 312                 break;
 313         default:
 314                 name2 = toqstr(lyxaction.getActionName(f.action));
 315                 name1 = name2;
 316
 317                 if (!f.argument().empty()) {
 318                         name1 = name2 + ' ' + toqstr(f.argument());
 319                         name1.replace(' ', '_');
 320                 }
 321         }
 322
 323         FileName fname = libFileSearch("images/" + path, name1, "png");
 324         if (fname.exists())
 325                 return toqstr(fname.absFilename());
 326
 327         fname = libFileSearch("images/" + path, name2, "png");
 328         if (fname.exists())
 329                 return toqstr(fname.absFilename());
 330
 331         path = ":/images/" + path;
 332         QDir res(path);
 333         if (!res.exists()) {
 334                 LYXERR0("Directory " << path << " not found in resource!");
 335                 return QString();
 336         }
 337         name1 += ".png";
 338         if (res.exists(name1))
 339                 return path + name1;
 340
 341         name2 += ".png";
 342         if (res.exists(name2))
 343                 return path + name2;
 344
 345         LYXERR(Debug::GUI, "Cannot find icon for command \""
 346                            << lyxaction.getActionName(f.action)
 347                            << '(' << to_utf8(f.argument()) << ")\"");
 348
 349         if (unknown)
 350                 return QString(":/images/unknown.png");
 351
 352         return QString();
 353 }
 354
 355
 356 QIcon getIcon(FuncRequest const & f, bool unknown)
 357 {
 358         QString icon = iconName(f, unknown);
 359         if (icon.isEmpty())
 360                 return QIcon();
 361
 362         //LYXERR(Debug::GUI, "Found icon: " << icon);
 363         QPixmap pm;
 364         if (!pm.load(icon)) {
 365                 LYXERR0("Cannot load icon " << icon << " please verify resource system!");
 366                 return QIcon();
 367         }
 368
 369         return QIcon(pm);
 370 }
 371
 372
 373 ////////////////////////////////////////////////////////////////////////
 374 // LyX server support code.
 375 ////////////////////////////////////////////////////////////////////////
 376 class SocketNotifier : public QSocketNotifier
 377 {
 378 public:
 379         /// connect a connection notification from the LyXServerSocket
 380         SocketNotifier(QObject * parent, int fd, Application::SocketCallback func)
 381                 : QSocketNotifier(fd, QSocketNotifier::Read, parent), func_(func)
 382         {}
 383
 384 public:
 385         /// The callback function
 386         Application::SocketCallback func_;
 387 };
 388
 389
 390 ////////////////////////////////////////////////////////////////////////
 391 // Mac specific stuff goes here...
 392 ////////////////////////////////////////////////////////////////////////
 393
 394 class MenuTranslator : public QTranslator
 395 {
 396 public:
 397         MenuTranslator(QObject * parent)
 398                 : QTranslator(parent)
 399         {}
 400
 401         QString translate(const char * /*context*/,
 402           const char * sourceText,
 403           const char * /*comment*/ = 0)
 404         {
 405                 string const s = sourceText;
 406                 if (s == N_("About %1") || s == N_("Preferences")
 407                                 || s == N_("Reconfigure") || s == N_("Quit %1"))
 408                         return qt_(s);
 409                 else
 410                         return QString();
 411         }
 412 };
 413
 414 class GlobalMenuBar : public QMenuBar
 415 {
 416 public:
 417         ///
 418         GlobalMenuBar() : QMenuBar(0) {}
 419
 420         ///
 421         bool event(QEvent * e)
 422         {
 423                 if (e->type() == QEvent::ShortcutOverride) {
 424                         //          && activeWindow() == 0) {
 425                         QKeyEvent * ke = static_cast<QKeyEvent*>(e);
 426                         KeySymbol sym;
 427                         setKeySymbol(&sym, ke);
 428                         theLyXFunc().processKeySym(sym, q_key_state(ke->modifiers()));
 429                         e->accept();
 430                         return true;
 431                 }
 432                 return false;
 433         }
 434 };
 435
 436 #ifdef Q_WS_MACX
 437 // QMacPasteboardMimeGraphics can only be compiled on Mac.
 438
 439 class QMacPasteboardMimeGraphics : public QMacPasteboardMime
 440 {
 441 public:
 442         QMacPasteboardMimeGraphics()
 443                 : QMacPasteboardMime(MIME_QT_CONVERTOR|MIME_ALL)
 444         {}
 445
 446         QString convertorName() { return "Graphics"; }
 447
 448         QString flavorFor(QString const & mime)
 449         {
 450                 LYXERR(Debug::ACTION, "flavorFor " << mime);
 451                 if (mime == pdfMimeType())
 452                         return QLatin1String("com.adobe.pdf");
 453                 return QString();
 454         }
 455
 456         QString mimeFor(QString flav)
 457         {
 458                 LYXERR(Debug::ACTION, "mimeFor " << flav);
 459                 if (flav == QLatin1String("com.adobe.pdf"))
 460                         return pdfMimeType();
 461                 return QString();
 462         }
 463
 464         bool canConvert(QString const & mime, QString flav)
 465         {
 466                 return mimeFor(flav) == mime;
 467         }
 468
 469         QVariant convertToMime(QString const & /*mime*/, QList<QByteArray> data,
 470                 QString /*flav*/)
 471         {
 472                 if(data.count() > 1)
 473                         qWarning("QMacPasteboardMimeGraphics: Cannot handle multiple member data");
 474                 return data.first();
 475         }
 476
 477         QList<QByteArray> convertFromMime(QString const & /*mime*/,
 478                 QVariant data, QString /*flav*/)
 479         {
 480                 QList<QByteArray> ret;
 481                 ret.append(data.toByteArray());
 482                 return ret;
 483         }
 484 };
 485 #endif
 486
 487 ///////////////////////////////////////////////////////////////
 488 // You can find more platform specific stuff
 489 // at the end of this file...
 490 ///////////////////////////////////////////////////////////////
 491
 492 ////////////////////////////////////////////////////////////////////////
 493 // Windows specific stuff goes here...
 494
 495 #ifdef Q_WS_WIN
 496 // QWindowsMimeMetafile can only be compiled on Windows.
 497
 498 static FORMATETC cfFromMime(QString const & mimetype)
 499 {
 500         FORMATETC formatetc;
 501         if (mimetype == emfMimeType()) {
 502                 formatetc.cfFormat = CF_ENHMETAFILE;
 503                 formatetc.tymed = TYMED_ENHMF;
 504         } else if (mimetype == wmfMimeType()) {
 505                 formatetc.cfFormat = CF_METAFILEPICT;
 506                 formatetc.tymed = TYMED_MFPICT;
 507         }
 508         formatetc.ptd = 0;
 509         formatetc.dwAspect = DVASPECT_CONTENT;
 510         formatetc.lindex = -1;
 511         return formatetc;
 512 }
 513
 514
 515 class QWindowsMimeMetafile : public QWindowsMime {
 516 public:
 517         QWindowsMimeMetafile() {}
 518
 519         bool canConvertFromMime(FORMATETC const & formatetc,
 520                 QMimeData const * mimedata) const
 521         {
 522                 return false;
 523         }
 524
 525         bool canConvertToMime(QString const & mimetype,
 526                 IDataObject * pDataObj) const
 527         {
 528                 if (mimetype != emfMimeType() && mimetype != wmfMimeType())
 529                         return false;
 530                 FORMATETC formatetc = cfFromMime(mimetype);
 531                 return pDataObj->QueryGetData(&formatetc) == S_OK;
 532         }
 533
 534         bool convertFromMime(FORMATETC const & formatetc,
 535                 const QMimeData * mimedata, STGMEDIUM * pmedium) const
 536         {
 537                 return false;
 538         }
 539
 540         QVariant convertToMime(QString const & mimetype, IDataObject * pDataObj,
 541                 QVariant::Type preferredType) const
 542         {
 543                 QByteArray data;
 544                 if (!canConvertToMime(mimetype, pDataObj))
 545                         return data;
 546
 547                 FORMATETC formatetc = cfFromMime(mimetype);
 548                 STGMEDIUM s;
 549                 if (pDataObj->GetData(&formatetc, &s) != S_OK)
 550                         return data;
 551
 552                 int dataSize;
 553                 if (s.tymed == TYMED_ENHMF) {
 554                         dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, 0, 0);
 555                         data.resize(dataSize);
 556                         dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, dataSize,
 557                                 (LPBYTE)data.data());
 558                 } else if (s.tymed == TYMED_MFPICT) {
 559                         dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, 0, 0);
 560                         data.resize(dataSize);
 561                         dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, dataSize,
 562                                 (LPBYTE)data.data());
 563                 }
 564                 data.detach();
 565                 ReleaseStgMedium(&s);
 566
 567                 return data;
 568         }
 569
 570
 571         QVector<FORMATETC> formatsForMime(QString const & mimeType,
 572                 QMimeData const * mimeData) const
 573         {
 574                 QVector<FORMATETC> formats;
 575                 formats += cfFromMime(mimeType);
 576                 return formats;
 577         }
 578
 579         QString mimeForFormat(FORMATETC const & formatetc) const
 580         {
 581                 switch (formatetc.cfFormat) {
 582                 case CF_ENHMETAFILE:
 583                         return emfMimeType();
 584                 case CF_METAFILEPICT:
 585                         return wmfMimeType();
 586                 }
 587                 return QString();
 588         }
 589 };
 590
 591 #endif // Q_WS_WIN
 592
 593 ////////////////////////////////////////////////////////////////////////
 594 // GuiApplication::Private definition and implementation.
 595 ////////////////////////////////////////////////////////////////////////
 596
 597 struct GuiApplication::Private
 598 {
 599         Private(): language_model_(0), global_menubar_(0) {}
 600
 601         ///
 602         QSortFilterProxyModel * language_model_;
 603         ///
 604         GuiClipboard clipboard_;
 605         ///
 606         GuiSelection selection_;
 607         ///
 608         FontLoader font_loader_;
 609         ///
 610         ColorCache color_cache_;
 611         ///
 612         QTranslator qt_trans_;
 613         ///
 614         QHash<int, SocketNotifier *> socket_notifiers_;
 615         ///
 616         Menus menus_;
 617         ///
 618         /// The global instance
 619         Toolbars toolbars_;
 620
 621         /// this timer is used for any regular events one wants to
 622         /// perform. at present it is used to check if forked processes
 623         /// are done.
 624         QTimer general_timer_;
 625
 626         /// delayed FuncRequests
 627         std::queue<FuncRequest> func_request_queue_;
 628
 629         /// Multiple views container.
 630         /**
 631         * Warning: This must not be a smart pointer as the destruction of the
 632         * object is handled by Qt when the view is closed
 633         * \sa Qt::WA_DeleteOnClose attribute.
 634         */
 635         QHash<int, GuiView *> views_;
 636
 637         /// Only used on mac.
 638         GlobalMenuBar * global_menubar_;
 639
 640 #ifdef Q_WS_MACX
 641         /// Linkback mime handler for MacOSX.
 642         QMacPasteboardMimeGraphics mac_pasteboard_mime_;
 643 #endif
 644
 645 #ifdef Q_WS_WIN
 646         /// WMF Mime handler for Windows clipboard.
 647         /// \warning: see comment in ~GuiApplication and in bug 4846.
 648         QWindowsMimeMetafile wmf_mime_;
 649 #endif
 650 };
 651
 652
 653 GuiApplication * guiApp;
 654
 655 GuiApplication::~GuiApplication()
 656 {
 657 #ifdef Q_WS_MACX
 658         closeAllLinkBackLinks();
 659 #endif
 660         // FIXME: Work around bug 4846 for Windows Vista and Qt4
 661         // (see http://bugzilla.lyx.org/show_bug.cgi?id=4846)
 662         // If the clipboard is not cleared, LyX crashes on exit when it is
 663         // compiled in release mode and if there is something in the clipboard.
 664         // This is related to QWindowsMimeMetafile which is apparently not
 665         // properly destroyed.
 666         qApp->clipboard()->clear(QClipboard::Clipboard);
 667         delete d;
 668 }
 669
 670
 671 GuiApplication::GuiApplication(int & argc, char ** argv)
 672         : QApplication(argc, argv),     current_view_(0), d(new GuiApplication::Private)
 673 {
 674         QString app_name = "LyX";
 675         QCoreApplication::setOrganizationName(app_name);
 676         QCoreApplication::setOrganizationDomain("lyx.org");
 677         QCoreApplication::setApplicationName(app_name + "-" + lyx_version);
 678
 679         // Install translator for GUI elements.
 680         installTranslator(&d->qt_trans_);
 681
 682         // FIXME: quitOnLastWindowClosed is true by default. We should have a
 683         // lyxrc setting for this in order to let the application stay resident.
 684         // But then we need some kind of dock icon, at least on Windows.
 685         /*
 686         if (lyxrc.quit_on_last_window_closed)
 687                 setQuitOnLastWindowClosed(false);
 688         */
 689 #ifdef Q_WS_MACX
 690         // FIXME: Do we need a lyxrc setting for this on Mac? This behaviour
 691         // seems to be the default case for applications like LyX.
 692         setQuitOnLastWindowClosed(false);
 693
 694         // This allows to translate the strings that appear in the LyX menu.
 695         /// A translator suitable for the entries in the LyX menu.
 696         /// Only needed with Qt/Mac.
 697         installTranslator(new MenuTranslator(this));
 698 #endif
 699
 700 #ifdef Q_WS_X11
 701         // doubleClickInterval() is 400 ms on X11 which is just too long.
 702         // On Windows and Mac OS X, the operating system's value is used.
 703         // On Microsoft Windows, calling this function sets the double
 704         // click interval for all applications. So we don't!
 705         QApplication::setDoubleClickInterval(300);
 706 #endif
 707
 708         connect(this, SIGNAL(lastWindowClosed()), this, SLOT(onLastWindowClosed()));
 709
 710         // needs to be done before reading lyxrc
 711         QWidget w;
 712         lyxrc.dpi = (w.logicalDpiX() + w.logicalDpiY()) / 2;
 713
 714         guiApp = this;
 715
 716         // Set the cache to 5120 kilobytes which corresponds to screen size of
 717         // 1280 by 1024 pixels with a color depth of 32 bits.
 718         QPixmapCache::setCacheLimit(5120);
 719
 720         // Initialize RC Fonts
 721         if (lyxrc.roman_font_name.empty())
 722                 lyxrc.roman_font_name = fromqstr(romanFontName());
 723
 724         if (lyxrc.sans_font_name.empty())
 725                 lyxrc.sans_font_name = fromqstr(sansFontName());
 726
 727         if (lyxrc.typewriter_font_name.empty())
 728                 lyxrc.typewriter_font_name = fromqstr(typewriterFontName());
 729
 730         d->general_timer_.setInterval(500);
 731         connect(&d->general_timer_, SIGNAL(timeout()),
 732                 this, SLOT(handleRegularEvents()));
 733         d->general_timer_.start();
 734 }
 735
 736
 737 void GuiApplication::clearSession()
 738 {
 739         QSettings settings;
 740         settings.clear();
 741 }
 742
 743
 744 docstring GuiApplication::iconName(FuncRequest const & f, bool unknown)
 745 {
 746         return qstring_to_ucs4(lyx::frontend::iconName(f, unknown));
 747 }
 748
 749
 750
 751 bool GuiApplication::getStatus(FuncRequest const & cmd, FuncStatus & flag) const
 752 {
 753         bool enable = true;
 754
 755         switch(cmd.action) {
 756
 757         case LFUN_WINDOW_CLOSE:
 758                 enable = d->views_.size() > 0;
 759                 break;
 760
 761         case LFUN_BUFFER_NEW:
 762         case LFUN_BUFFER_NEW_TEMPLATE:
 763         case LFUN_FILE_OPEN:
 764         case LFUN_SCREEN_FONT_UPDATE:
 765         case LFUN_SET_COLOR:
 766         case LFUN_WINDOW_NEW:
 767         case LFUN_LYX_QUIT:
 768                 enable = true;
 769                 break;
 770
 771         default:
 772                 return false;
 773         }
 774
 775         if (!enable)
 776                 flag.setEnabled(false);
 777
 778         return true;
 779 }
 780
 781
 782 bool GuiApplication::dispatch(FuncRequest const & cmd)
 783 {
 784         switch (cmd.action) {
 785
 786         case LFUN_WINDOW_NEW:
 787                 createView(toqstr(cmd.argument()));
 788                 break;
 789
 790         case LFUN_WINDOW_CLOSE:
 791                 // update bookmark pit of the current buffer before window close
 792                 for (size_t i = 0; i < theSession().bookmarks().size(); ++i)
 793                         theLyXFunc().gotoBookmark(i+1, false, false);
 794                 current_view_->close();
 795                 break;
 796
 797         case LFUN_LYX_QUIT:
 798                 // quitting is triggered by the gui code
 799                 // (leaving the event loop).
 800                 if (current_view_)
 801                         current_view_->message(from_utf8(N_("Exiting.")));
 802                 if (closeAllViews())
 803                         quit();
 804                 break;
 805
 806         case LFUN_SCREEN_FONT_UPDATE: {
 807                 // handle the screen font changes.
 808                 d->font_loader_.update();
 809                 // Backup current_view_
 810                 GuiView * view = current_view_;
 811                 // Set current_view_ to zero to forbid GuiWorkArea::redraw()
 812                 // to skip the refresh.
 813                 current_view_ = 0;
 814                 BufferList::iterator it = theBufferList().begin();
 815                 BufferList::iterator const end = theBufferList().end();
 816                 for (; it != end; ++it)
 817                         (*it)->changed();
 818                 // Restore current_view_
 819                 current_view_ = view;
 820                 break;
 821         }
 822
 823         case LFUN_BUFFER_NEW:
 824                 if (d->views_.empty()
 825                     || (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
 826                         createView(QString(), false); // keep hidden
 827                         current_view_->newDocument(to_utf8(cmd.argument()), false);
 828                         current_view_->show();
 829                         setActiveWindow(current_view_);
 830                 } else {
 831                         current_view_->newDocument(to_utf8(cmd.argument()), false);
 832                 }
 833                 break;
 834
 835         case LFUN_BUFFER_NEW_TEMPLATE:
 836                 if (d->views_.empty()
 837                     || (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
 838                         createView();
 839                         current_view_->newDocument(to_utf8(cmd.argument()), true);
 840                         if (!current_view_->buffer())
 841                                 current_view_->close();
 842                 } else {
 843                         current_view_->newDocument(to_utf8(cmd.argument()), true);
 844                 }
 845                 break;
 846
 847         case LFUN_FILE_OPEN:
 848                 if (d->views_.empty()
 849                     || (!lyxrc.open_buffers_in_tabs && current_view_->buffer() != 0)) {
 850                         string const fname = to_utf8(cmd.argument());
 851                         // We want the ui session to be saved per document and not per
 852                         // window number. The filename crc is a good enough identifier.
 853                         boost::crc_32_type crc;
 854                         crc = for_each(fname.begin(), fname.end(), crc);
 855                         createView(crc.checksum());
 856                         current_view_->openDocument(fname);
 857                         if (current_view_ && !current_view_->buffer())
 858                                 current_view_->close();
 859                 } else
 860                         current_view_->openDocument(to_utf8(cmd.argument()));
 861                 break;
 862
 863         case LFUN_SET_COLOR: {
 864                 string lyx_name;
 865                 string const x11_name = split(to_utf8(cmd.argument()), lyx_name, ' ');
 866                 if (lyx_name.empty() || x11_name.empty()) {
 867                         current_view_->message(
 868                                 _("Syntax: set-color <lyx_name> <x11_name>"));
 869                         break;
 870                 }
 871
 872                 string const graphicsbg = lcolor.getLyXName(Color_graphicsbg);
 873                 bool const graphicsbg_changed = lyx_name == graphicsbg
 874                         && x11_name != graphicsbg;
 875                 if (graphicsbg_changed) {
 876                         // FIXME: The graphics cache no longer has a changeDisplay method.
 877 #if 0
 878                         graphics::GCache::get().changeDisplay(true);
 879 #endif
 880                 }
 881
 882                 if (!lcolor.setColor(lyx_name, x11_name)) {
 883                         current_view_->message(
 884                                         bformat(_("Set-color \"%1$s\" failed "
 885                                                                "- color is undefined or "
 886                                                                "may not be redefined"),
 887                                                                    from_utf8(lyx_name)));
 888                         break;
 889                 }
 890                 // Make sure we don't keep old colors in cache.
 891                 d->color_cache_.clear();
 892                 break;
 893         }
 894
 895         default:
 896                 // Notify the caller that the action has not been dispatched.
 897                 return false;
 898         }
 899
 900         // The action has been dispatched.
 901         return true;
 902 }
 903
 904
 905 void GuiApplication::dispatchDelayed(FuncRequest const & func)
 906 {
 907         d->func_request_queue_.push(func);
 908         QTimer::singleShot(0, this, SLOT(processFuncRequestQueue()));
 909 }
 910
 911
 912 void GuiApplication::resetGui()
 913 {
 914         // Set the language defined by the user.
 915         setGuiLanguage();
 916
 917         // Read menus
 918         if (!readUIFile(toqstr(lyxrc.ui_file)))
 919                 // Gives some error box here.
 920                 return;
 921
 922         if (d->global_menubar_)
 923                 d->menus_.fillMenuBar(d->global_menubar_, 0, false);
 924
 925         QHash<int, GuiView *>::iterator it;
 926         for (it = d->views_.begin(); it != d->views_.end(); ++it) {
 927                 GuiView * gv = *it;
 928                 gv->setLayoutDirection(layoutDirection());
 929                 gv->resetDialogs();
 930         }
 931
 932         dispatch(FuncRequest(LFUN_SCREEN_FONT_UPDATE));
 933 }
 934
 935
 936 void GuiApplication::createView(int view_id)
 937 {
 938         createView(QString(), true, view_id);
 939 }
 940
 941
 942 void GuiApplication::createView(QString const & geometry_arg, bool autoShow,
 943         int view_id)
 944 {
 945         // release the keyboard which might have been grabed by the global
 946         // menubar on Mac to catch shortcuts even without any GuiView.
 947         if (d->global_menubar_)
 948                 d->global_menubar_->releaseKeyboard();
 949
 950         // create new view
 951         int id = view_id;
 952         if (id == 0) {
 953                 while (d->views_.find(id) != d->views_.end())
 954                         id++;
 955         }
 956         LYXERR(Debug::GUI, "About to create new window with ID " << id);
 957         GuiView * view = new GuiView(id);
 958         // register view
 959         d->views_[id] = view;
 960
 961         if (autoShow) {
 962                 view->show();
 963                 setActiveWindow(view);
 964         }
 965
 966         if (!geometry_arg.isEmpty()) {
 967 #ifdef Q_WS_WIN
 968                 int x, y;
 969                 int w, h;
 970                 QRegExp re( "[=]*(?:([0-9]+)[xX]([0-9]+)){0,1}[ ]*(?:([+-][0-9]*)([+-][0-9]*)){0,1}" );
 971                 re.indexIn(geometry_arg);
 972                 w = re.cap(1).toInt();
 973                 h = re.cap(2).toInt();
 974                 x = re.cap(3).toInt();
 975                 y = re.cap(4).toInt();
 976                 view->setGeometry(x, y, w, h);
 977 #endif
 978         }
 979         view->setFocus();
 980 }
 981
 982
 983 Clipboard & GuiApplication::clipboard()
 984 {
 985         return d->clipboard_;
 986 }
 987
 988
 989 Selection & GuiApplication::selection()
 990 {
 991         return d->selection_;
 992 }
 993
 994
 995 FontLoader & GuiApplication::fontLoader()
 996 {
 997         return d->font_loader_;
 998 }
 999
1000
1001 Toolbars const & GuiApplication::toolbars() const
1002 {
1003         return d->toolbars_;
1004 }
1005
1006
1007 Toolbars & GuiApplication::toolbars()
1008 {
1009         return d->toolbars_;
1010 }
1011
1012
1013 Menus const & GuiApplication::menus() const
1014 {
1015         return d->menus_;
1016 }
1017
1018
1019 Menus & GuiApplication::menus()
1020 {
1021         return d->menus_;
1022 }
1023
1024
1025 QList<int> GuiApplication::viewIds() const
1026 {
1027         return d->views_.keys();
1028 }
1029
1030
1031 ColorCache & GuiApplication::colorCache()
1032 {
1033         return d->color_cache_;
1034 }
1035
1036
1037 int GuiApplication::exec()
1038 {
1039         // asynchronously handle batch commands. This event will be in
1040         // the event queue in front of other asynchronous events. Hence,
1041         // we can assume in the latter that the gui is setup already.
1042         QTimer::singleShot(0, this, SLOT(execBatchCommands()));
1043
1044         return QApplication::exec();
1045 }
1046
1047
1048 void GuiApplication::exit(int status)
1049 {
1050         QApplication::exit(status);
1051 }
1052
1053
1054 void GuiApplication::setGuiLanguage()
1055 {
1056         // Set the language defined by the user.
1057         setRcGuiLanguage();
1058
1059         QString const default_language = toqstr(Messages::defaultLanguage());
1060         LYXERR(Debug::LOCALE, "Tring to set default locale to: " << default_language);
1061         QLocale const default_locale(default_language);
1062         QLocale::setDefault(default_locale);
1063
1064         // install translation file for Qt built-in dialogs
1065         QString const language_name = QString("qt_") + default_locale.name();
1066
1067         // language_name can be short (e.g. qt_zh) or long (e.g. qt_zh_CN).
1068         // Short-named translator can be loaded from a long name, but not the
1069         // opposite. Therefore, long name should be used without truncation.
1070         // c.f. http://doc.trolltech.com/4.1/qtranslator.html#load
1071         if (!d->qt_trans_.load(language_name,
1072                         QLibraryInfo::location(QLibraryInfo::TranslationsPath))) {
1073                 LYXERR(Debug::LOCALE, "Could not find  Qt translations for locale "
1074                         << language_name);
1075         } else {
1076                 LYXERR(Debug::LOCALE, "Successfully installed Qt translations for locale "
1077                         << language_name);
1078         }
1079
1080         switch (default_locale.language()) {
1081         case QLocale::Arabic :
1082         case QLocale::Hebrew :
1083         case QLocale::Persian :
1084         case QLocale::Urdu :
1085         setLayoutDirection(Qt::RightToLeft);
1086                 break;
1087         default:
1088         setLayoutDirection(Qt::LeftToRight);
1089         }
1090 }
1091
1092
1093 void GuiApplication::processFuncRequestQueue()
1094 {
1095         while (!d->func_request_queue_.empty()) {
1096                 lyx::dispatch(d->func_request_queue_.back());
1097                 d->func_request_queue_.pop();
1098         }
1099 }
1100
1101
1102 void GuiApplication::execBatchCommands()
1103 {
1104         setGuiLanguage();
1105
1106         // Read menus
1107         if (!readUIFile(toqstr(lyxrc.ui_file)))
1108                 // Gives some error box here.
1109                 return;
1110
1111 #ifdef Q_WS_MACX
1112         // Create the global default menubar which is shown for the dialogs
1113         // and if no GuiView is visible.
1114         // This must be done after the session was recovered to know the "last files".
1115         d->global_menubar_ = new GlobalMenuBar();
1116         d->menus_.fillMenuBar(d->global_menubar_, 0, true);
1117 #endif
1118
1119         lyx::execBatchCommands();
1120 }
1121
1122
1123 QAbstractItemModel * GuiApplication::languageModel()
1124 {
1125         if (d->language_model_)
1126                 return d->language_model_;
1127
1128         QStandardItemModel * lang_model = new QStandardItemModel(this);
1129         lang_model->insertColumns(0, 1);
1130         int current_row;
1131         Languages::const_iterator it = languages.begin();
1132         Languages::const_iterator end = languages.end();
1133         for (; it != end; ++it) {
1134                 current_row = lang_model->rowCount();
1135                 lang_model->insertRows(current_row, 1);
1136                 QModelIndex item = lang_model->index(current_row, 0);
1137                 lang_model->setData(item, qt_(it->second.display()), Qt::DisplayRole);
1138                 lang_model->setData(item, toqstr(it->second.lang()), Qt::UserRole);
1139         }
1140         d->language_model_ = new QSortFilterProxyModel(this);
1141         d->language_model_->setSourceModel(lang_model);
1142 #if QT_VERSION >= 0x040300
1143         d->language_model_->setSortLocaleAware(true);
1144 #endif
1145         return d->language_model_;
1146 }
1147
1148
1149 void GuiApplication::restoreGuiSession()
1150 {
1151         if (!lyxrc.load_session)
1152                 return;
1153
1154         Session & session = theSession();
1155         vector<FileName> const & lastopened = session.lastOpened().getfiles();
1156         // do not add to the lastfile list since these files are restored from
1157         // last session, and should be already there (regular files), or should
1158         // not be added at all (help files).
1159         for_each(lastopened.begin(), lastopened.end(),
1160                 bind(&GuiView::loadDocument, current_view_, _1, false));
1161
1162         // clear this list to save a few bytes of RAM
1163         session.lastOpened().clear();
1164 }
1165
1166
1167 QString const GuiApplication::romanFontName()
1168 {
1169         QFont font;
1170         font.setKerning(false);
1171         font.setStyleHint(QFont::Serif);
1172         font.setFamily("serif");
1173
1174         return QFontInfo(font).family();
1175 }
1176
1177
1178 QString const GuiApplication::sansFontName()
1179 {
1180         QFont font;
1181         font.setKerning(false);
1182         font.setStyleHint(QFont::SansSerif);
1183         font.setFamily("sans");
1184
1185         return QFontInfo(font).family();
1186 }
1187
1188
1189 QString const GuiApplication::typewriterFontName()
1190 {
1191         QFont font;
1192         font.setKerning(false);
1193         font.setStyleHint(QFont::TypeWriter);
1194         font.setFamily("monospace");
1195
1196         return QFontInfo(font).family();
1197 }
1198
1199
1200 void GuiApplication::handleRegularEvents()
1201 {
1202         ForkedCallsController::handleCompletedProcesses();
1203 }
1204
1205
1206 bool GuiApplication::event(QEvent * e)
1207 {
1208         switch(e->type()) {
1209         case QEvent::FileOpen: {
1210                 // Open a file; this happens only on Mac OS X for now.
1211                 //
1212                 // We do this asynchronously because on startup the batch
1213                 // commands are not executed here yet and the gui is not ready
1214                 // therefore.
1215                 QFileOpenEvent * foe = static_cast<QFileOpenEvent *>(e);
1216                 dispatchDelayed(FuncRequest(LFUN_FILE_OPEN, qstring_to_ucs4(foe->file())));
1217                 e->accept();
1218                 return true;
1219         }
1220         default:
1221                 return QApplication::event(e);
1222         }
1223 }
1224
1225
1226 bool GuiApplication::notify(QObject * receiver, QEvent * event)
1227 {
1228         try {
1229                 return QApplication::notify(receiver, event);
1230         }
1231         catch (ExceptionMessage const & e) {
1232                 switch(e.type_) {
1233                 case ErrorException:
1234                         emergencyCleanup();
1235                         setQuitOnLastWindowClosed(false);
1236                         closeAllViews();
1237                         Alert::error(e.title_, e.details_);
1238 #ifndef NDEBUG
1239                         // Properly crash in debug mode in order to get a useful backtrace.
1240                         abort();
1241 #endif
1242                         // In release mode, try to exit gracefully.
1243                         this->exit(1);
1244
1245                 case BufferException: {
1246                         Buffer * buf = current_view_->buffer();
1247                         docstring details = e.details_ + '\n';
1248                         details += theBufferList().emergencyWrite(buf);
1249                         theBufferList().release(buf);
1250                         details += "\n" + _("The current document was closed.");
1251                         Alert::error(e.title_, details);
1252                         return false;
1253                 }
1254                 case WarningException:
1255                         Alert::warning(e.title_, e.details_);
1256                         return false;
1257                 }
1258         }
1259         catch (exception const & e) {
1260                 docstring s = _("LyX has caught an exception, it will now "
1261                         "attempt to save all unsaved documents and exit."
1262                         "\n\nException: ");
1263                 s += from_ascii(e.what());
1264                 Alert::error(_("Software exception Detected"), s);
1265                 lyx_exit(1);
1266         }
1267         catch (...) {
1268                 docstring s = _("LyX has caught some really weird exception, it will "
1269                         "now attempt to save all unsaved documents and exit.");
1270                 Alert::error(_("Software exception Detected"), s);
1271                 lyx_exit(1);
1272         }
1273
1274         return false;
1275 }
1276
1277
1278 bool GuiApplication::getRgbColor(ColorCode col, RGBColor & rgbcol)
1279 {
1280         QColor const & qcol = d->color_cache_.get(col);
1281         if (!qcol.isValid()) {
1282                 rgbcol.r = 0;
1283                 rgbcol.g = 0;
1284                 rgbcol.b = 0;
1285                 return false;
1286         }
1287         rgbcol.r = qcol.red();
1288         rgbcol.g = qcol.green();
1289         rgbcol.b = qcol.blue();
1290         return true;
1291 }
1292
1293
1294 string const GuiApplication::hexName(ColorCode col)
1295 {
1296         return ltrim(fromqstr(d->color_cache_.get(col).name()), "#");
1297 }
1298
1299
1300 void GuiApplication::registerSocketCallback(int fd, SocketCallback func)
1301 {
1302         SocketNotifier * sn = new SocketNotifier(this, fd, func);
1303         d->socket_notifiers_[fd] = sn;
1304         connect(sn, SIGNAL(activated(int)), this, SLOT(socketDataReceived(int)));
1305 }
1306
1307
1308 void GuiApplication::socketDataReceived(int fd)
1309 {
1310         d->socket_notifiers_[fd]->func_();
1311 }
1312
1313
1314 void GuiApplication::unregisterSocketCallback(int fd)
1315 {
1316         d->socket_notifiers_.take(fd)->setEnabled(false);
1317 }
1318
1319
1320 void GuiApplication::commitData(QSessionManager & sm)
1321 {
1322         /// The implementation is required to avoid an application exit
1323         /// when session state save is triggered by session manager.
1324         /// The default implementation sends a close event to all
1325         /// visible top level widgets when session managment allows
1326         /// interaction.
1327         /// We are changing that to close all wiew one by one.
1328         /// FIXME: verify if the default implementation is enough now.
1329         if (sm.allowsInteraction() && !closeAllViews())
1330                 sm.cancel();
1331 }
1332
1333
1334 void GuiApplication::unregisterView(GuiView * gv)
1335 {
1336         LASSERT(d->views_[gv->id()] == gv, /**/);
1337         d->views_.remove(gv->id());
1338         if (current_view_ == gv) {
1339                 current_view_ = 0;
1340                 theLyXFunc().setLyXView(0);
1341         }
1342 }
1343
1344
1345 bool GuiApplication::closeAllViews()
1346 {
1347         if (d->views_.empty())
1348                 return true;
1349
1350         QList<GuiView *> views = d->views_.values();
1351         foreach (GuiView * view, views) {
1352                 if (!view->close())
1353                         return false;
1354         }
1355
1356         d->views_.clear();
1357         return true;
1358 }
1359
1360
1361 GuiView & GuiApplication::view(int id) const
1362 {
1363         LASSERT(d->views_.contains(id), /**/);
1364         return *d->views_.value(id);
1365 }
1366
1367
1368 void GuiApplication::hideDialogs(string const & name, Inset * inset) const
1369 {
1370         QList<GuiView *> views = d->views_.values();
1371         foreach (GuiView * view, views)
1372                 view->hideDialog(name, inset);
1373 }
1374
1375
1376 Buffer const * GuiApplication::updateInset(Inset const * inset) const
1377 {
1378         Buffer const * buffer_ = 0;
1379         QHash<int, GuiView *>::iterator end = d->views_.end();
1380         for (QHash<int, GuiView *>::iterator it = d->views_.begin(); it != end; ++it) {
1381                 if (Buffer const * ptr = (*it)->updateInset(inset))
1382                         buffer_ = ptr;
1383         }
1384         return buffer_;
1385 }
1386
1387
1388 bool GuiApplication::searchMenu(FuncRequest const & func,
1389         docstring_list & names) const
1390 {
1391         return d->menus_.searchMenu(func, names);
1392 }
1393
1394
1395 bool GuiApplication::readUIFile(QString const & name, bool include)
1396 {
1397         enum {
1398                 ui_menuset = 1,
1399                 ui_toolbars,
1400                 ui_toolbarset,
1401                 ui_include,
1402                 ui_last
1403         };
1404
1405         LexerKeyword uitags[] = {
1406                 { "include", ui_include },
1407                 { "menuset", ui_menuset },
1408                 { "toolbars", ui_toolbars },
1409                 { "toolbarset", ui_toolbarset }
1410         };
1411
1412         LYXERR(Debug::INIT, "About to read " << name << "...");
1413
1414         FileName ui_path;
1415         if (include) {
1416                 ui_path = libFileSearch("ui", name, "inc");
1417                 if (ui_path.empty())
1418                         ui_path = libFileSearch("ui", changeExtension(name, "inc"));
1419         } else {
1420                 ui_path = libFileSearch("ui", name, "ui");
1421         }
1422
1423         if (ui_path.empty()) {
1424                 LYXERR(Debug::INIT, "Could not find " << name);
1425                 Alert::warning(_("Could not find UI definition file"),
1426                                bformat(_("Error while reading the configuration file\n%1$s.\n"
1427                                    "Please check your installation."), qstring_to_ucs4(name)));
1428                 return false;
1429         }
1430
1431
1432         // Ensure that a file is read only once (prevents include loops)
1433         static QStringList uifiles;
1434         QString const uifile = toqstr(ui_path.absFilename());
1435         if (uifiles.contains(uifile)) {
1436                 if (!include) {
1437                         // We are reading again the top uifile so reset the safeguard:
1438                         uifiles.clear();
1439                         d->menus_.reset();
1440                         d->toolbars_.reset();
1441                 } else {
1442                         LYXERR(Debug::INIT, "UI file '" << name << "' has been read already. "
1443                                 << "Is this an include loop?");
1444                         return false;
1445                 }
1446         }
1447         uifiles.push_back(uifile);
1448
1449         LYXERR(Debug::INIT, "Found " << name << " in " << ui_path);
1450
1451         Lexer lex(uitags);
1452         lex.setFile(ui_path);
1453         if (!lex.isOK()) {
1454                 lyxerr << "Unable to set LyXLeX for ui file: " << ui_path
1455                        << endl;
1456         }
1457
1458         if (lyxerr.debugging(Debug::PARSER))
1459                 lex.printTable(lyxerr);
1460
1461         while (lex.isOK()) {
1462                 switch (lex.lex()) {
1463                 case ui_include: {
1464                         lex.next(true);
1465                         QString const file = toqstr(lex.getString());
1466                         if (!readUIFile(file, true))
1467                                 return false;
1468                         break;
1469                 }
1470                 case ui_menuset:
1471                         d->menus_.read(lex);
1472                         break;
1473
1474                 case ui_toolbarset:
1475                         d->toolbars_.readToolbars(lex);
1476                         break;
1477
1478                 case ui_toolbars:
1479                         d->toolbars_.readToolbarSettings(lex);
1480                         break;
1481
1482                 default:
1483                         if (!rtrim(lex.getString()).empty())
1484                                 lex.printError("LyX::ReadUIFile: "
1485                                                "Unknown menu tag: `$$Token'");
1486                         break;
1487                 }
1488         }
1489
1490         if (include)
1491                 return true;
1492
1493         QSettings settings;
1494         settings.beginGroup("ui_files");
1495         bool touched = false;
1496         for (int i = 0; i != uifiles.size(); ++i) {
1497                 QFileInfo fi(uifiles[i]);
1498                 QDateTime const date_value = fi.lastModified();
1499                 QString const name_key = QString::number(i);
1500                 if (!settings.contains(name_key)
1501                  || settings.value(name_key).toString() != uifiles[i]
1502                  || settings.value(name_key + "/date").toDateTime() != date_value) {
1503                         touched = true;
1504                         settings.setValue(name_key, uifiles[i]);
1505                         settings.setValue(name_key + "/date", date_value);
1506                 }
1507         }
1508         settings.endGroup();
1509         if (touched)
1510                 settings.remove("views");
1511
1512         return true;
1513 }
1514
1515
1516 void GuiApplication::onLastWindowClosed()
1517 {
1518         if (d->global_menubar_)
1519                 d->global_menubar_->grabKeyboard();
1520 }
1521
1522
1523 ////////////////////////////////////////////////////////////////////////
1524 //
1525 // X11 specific stuff goes here...
1526
1527 #ifdef Q_WS_X11
1528 bool GuiApplication::x11EventFilter(XEvent * xev)
1529 {
1530         if (!current_view_)
1531                 return false;
1532
1533         switch (xev->type) {
1534         case SelectionRequest: {
1535                 if (xev->xselectionrequest.selection != XA_PRIMARY)
1536                         break;
1537                 LYXERR(Debug::SELECTION, "X requested selection.");
1538                 BufferView * bv = current_view_->view();
1539                 if (bv) {
1540                         docstring const sel = bv->requestSelection();
1541                         if (!sel.empty())
1542                                 d->selection_.put(sel);
1543                 }
1544                 break;
1545         }
1546         case SelectionClear: {
1547                 if (xev->xselectionclear.selection != XA_PRIMARY)
1548                         break;
1549                 LYXERR(Debug::SELECTION, "Lost selection.");
1550                 BufferView * bv = current_view_->view();
1551                 if (bv)
1552                         bv->clearSelection();
1553                 break;
1554         }
1555         }
1556         return false;
1557 }
1558 #endif
1559
1560 } // namespace frontend
1561
1562
1563 void hideDialogs(std::string const & name, Inset * inset)
1564 {
1565         if (theApp())
1566                 theApp()->hideDialogs(name, inset);
1567 }
1568
1569
1570 ////////////////////////////////////////////////////////////////////
1571 //
1572 // Font stuff
1573 //
1574 ////////////////////////////////////////////////////////////////////
1575
1576 frontend::FontLoader & theFontLoader()
1577 {
1578         LASSERT(frontend::guiApp, /**/);
1579         return frontend::guiApp->fontLoader();
1580 }
1581
1582
1583 frontend::FontMetrics const & theFontMetrics(Font const & f)
1584 {
1585         return theFontMetrics(f.fontInfo());
1586 }
1587
1588
1589 frontend::FontMetrics const & theFontMetrics(FontInfo const & f)
1590 {
1591         LASSERT(frontend::guiApp, /**/);
1592         return frontend::guiApp->fontLoader().metrics(f);
1593 }
1594
1595
1596 ////////////////////////////////////////////////////////////////////
1597 //
1598 // Misc stuff
1599 //
1600 ////////////////////////////////////////////////////////////////////
1601
1602 frontend::Clipboard & theClipboard()
1603 {
1604         LASSERT(frontend::guiApp, /**/);
1605         return frontend::guiApp->clipboard();
1606 }
1607
1608
1609 frontend::Selection & theSelection()
1610 {
1611         LASSERT(frontend::guiApp, /**/);
1612         return frontend::guiApp->selection();
1613 }
1614
1615 } // namespace lyx
1616
1617 #include "moc_GuiApplication.cpp"