2 * \file GuiApplication.cpp
3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
8 * \author Abdelrazak Younes
10 * Full author contact details are available in file CREDITS.
15 #include "GuiApplication.h"
18 #include "qt_helpers.h"
21 #include "frontends/alert.h"
23 #include "graphics/LoaderQueue.h"
25 #include "support/ExceptionMessage.h"
26 #include "support/FileName.h"
27 #include "support/lstrings.h"
28 #include "support/os.h"
29 #include "support/Package.h"
31 #include "BufferList.h"
32 #include "BufferView.h"
34 #include "FuncRequest.h"
40 #include <QApplication>
43 #include <QFileOpenEvent>
45 #include <QLibraryInfo>
46 #include <QPixmapCache>
47 #include <QSessionManager>
48 #include <QSocketNotifier>
51 #include <QTranslator>
55 #include <X11/Xatom.h>
61 #include <boost/bind.hpp>
71 frontend::Application * createApplication(int & argc, char * argv[])
73 return new frontend::GuiApplication(argc, argv);
79 class SocketNotifier : public QSocketNotifier
82 /// connect a connection notification from the LyXServerSocket
83 SocketNotifier(QObject * parent, int fd, Application::SocketCallback func)
84 : QSocketNotifier(fd, QSocketNotifier::Read, parent), func_(func)
88 /// The callback function
89 Application::SocketCallback func_;
93 ////////////////////////////////////////////////////////////////////////
94 // Mac specific stuff goes here...
96 class MenuTranslator : public QTranslator
99 MenuTranslator(QObject * parent)
100 : QTranslator(parent)
103 QString translate(const char * /*context*/,
104 const char * sourceText,
105 const char * /*comment*/ = 0)
107 string const s = sourceText;
108 if (s == N_("About %1") || s == N_("Preferences")
109 || s == N_("Reconfigure") || s == N_("Quit %1"))
117 ///////////////////////////////////////////////////////////////
118 // You can find more platform specific stuff
119 // at the end of this file...
120 ///////////////////////////////////////////////////////////////
123 using support::FileName;
125 GuiApplication * guiApp;
128 GuiApplication::GuiApplication(int & argc, char ** argv)
129 : QApplication(argc, argv), Application()
131 QCoreApplication::setOrganizationName("The LyX Community");
132 QCoreApplication::setOrganizationDomain("lyx.org");
133 QCoreApplication::setApplicationName("LyX");
135 // Qt bug? setQuitOnLastWindowClosed(true); does not work
136 setQuitOnLastWindowClosed(false);
139 // doubleClickInterval() is 400 ms on X11 which is just too long.
140 // On Windows and Mac OS X, the operating system's value is used.
141 // On Microsoft Windows, calling this function sets the double
142 // click interval for all applications. So we don't!
143 QApplication::setDoubleClickInterval(300);
146 // install translation file for Qt built-in dialogs
147 QString language_name = QString("qt_") + QLocale::system().name();
149 // language_name can be short (e.g. qt_zh) or long (e.g. qt_zh_CN).
150 // Short-named translator can be loaded from a long name, but not the
151 // opposite. Therefore, long name should be used without truncation.
152 // c.f. http://doc.trolltech.com/4.1/qtranslator.html#load
153 if (qt_trans_.load(language_name,
154 QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
156 installTranslator(&qt_trans_);
157 // even if the language calls for RtL, don't do that
158 setLayoutDirection(Qt::LeftToRight);
160 << "Successfully installed Qt translations for locale "
161 << fromqstr(language_name) << std::endl;
164 << "Could not find Qt translations for locale "
165 << fromqstr(language_name) << std::endl;
168 // This allows to translate the strings that appear in the LyX menu.
172 using namespace lyx::graphics;
174 Image::newImage = boost::bind(&GuiImage::newImage);
175 Image::loadableFormats = boost::bind(&GuiImage::loadableFormats);
177 // needs to be done before reading lyxrc
179 lyxrc.dpi = (w.logicalDpiX() + w.logicalDpiY()) / 2;
181 LoaderQueue::setPriority(10,100);
185 // Set the cache to 5120 kilobytes which corresponds to screen size of
186 // 1280 by 1024 pixels with a color depth of 32 bits.
187 QPixmapCache::setCacheLimit(5120);
191 GuiApplication::~GuiApplication()
193 socket_notifiers_.clear();
197 LyXView & GuiApplication::createView(string const & geometryArg)
199 int const id = gui_.createRegisteredView();
200 GuiView & view = static_cast<GuiView &>(gui_.view(id));
201 theLyXFunc().setLyXView(&view);
204 view.setGeometry(geometryArg);
207 setCurrentView(view);
215 Clipboard & GuiApplication::clipboard()
221 Selection & GuiApplication::selection()
227 int GuiApplication::exec()
229 QTimer::singleShot(1, this, SLOT(execBatchCommands()));
230 return QApplication::exec();
234 void GuiApplication::exit(int status)
236 QApplication::exit(status);
240 void GuiApplication::execBatchCommands()
242 LyX::ref().execBatchCommands();
246 string const GuiApplication::romanFontName()
249 font.setKerning(false);
250 font.setStyleHint(QFont::Serif);
251 font.setFamily("serif");
253 return fromqstr(QFontInfo(font).family());
257 string const GuiApplication::sansFontName()
260 font.setKerning(false);
261 font.setStyleHint(QFont::SansSerif);
262 font.setFamily("sans");
264 return fromqstr(QFontInfo(font).family());
268 string const GuiApplication::typewriterFontName()
271 font.setKerning(false);
272 font.setStyleHint(QFont::TypeWriter);
273 font.setFamily("monospace");
275 return fromqstr(QFontInfo(font).family());
279 bool GuiApplication::event(QEvent * e)
282 case QEvent::FileOpen: {
283 // Open a file; this happens only on Mac OS X for now
284 QFileOpenEvent * foe = static_cast<QFileOpenEvent *>(e);
286 if (!currentView() || !currentView()->view())
287 // The application is not properly initialized yet.
288 // So we acknowledge the event and delay the file opening
289 // until LyX is ready.
290 // FIXME UNICODE: FileName accept an utf8 encoded string.
291 LyX::ref().addFileToLoad(FileName(fromqstr(foe->file())));
293 lyx::dispatch(FuncRequest(LFUN_FILE_OPEN,
294 qstring_to_ucs4(foe->file())));
300 return QApplication::event(e);
305 bool GuiApplication::notify(QObject * receiver, QEvent * event)
308 return QApplication::notify(receiver, event);
310 catch (support::ExceptionMessage const & e) {
311 if (e.type_ == support::ErrorException) {
312 Alert::error(e.title_, e.details_);
313 LyX::cref().emergencyCleanup();
314 QApplication::exit(1);
315 } else if (e.type_ == support::WarningException) {
316 Alert::warning(e.title_, e.details_);
320 catch (std::exception const & e) {
321 docstring s = _("LyX has caught an exception, it will now "
322 "attemp to save all unsaved documents and exit."
324 s += from_ascii(e.what());
325 Alert::error(_("Software exception Detected"), s);
326 LyX::cref().emergencyCleanup();
327 QApplication::exit(1);
330 docstring s = _("LyX has caught some really weird exception, it will "
331 "now attemp to save all unsaved documents and exit.");
332 Alert::error(_("Software exception Detected"), s);
333 LyX::cref().emergencyCleanup();
334 QApplication::exit(1);
341 void GuiApplication::syncEvents()
343 // This is the ONLY place where processEvents may be called.
344 // During screen update/ redraw, this method is disabled to
345 // prevent keyboard events being handed to the LyX core, where
346 // they could cause re-entrant calls to screen update.
347 processEvents(QEventLoop::ExcludeUserInputEvents);
351 bool GuiApplication::getRgbColor(ColorCode col, RGBColor & rgbcol)
353 QColor const & qcol = color_cache_.get(col);
354 if (!qcol.isValid()) {
360 rgbcol.r = qcol.red();
361 rgbcol.g = qcol.green();
362 rgbcol.b = qcol.blue();
367 string const GuiApplication::hexName(ColorCode col)
369 return support::ltrim(fromqstr(color_cache_.get(col).name()), "#");
373 void GuiApplication::updateColor(ColorCode)
375 // FIXME: Bleh, can't we just clear them all at once ?
376 color_cache_.clear();
380 void GuiApplication::registerSocketCallback(int fd, SocketCallback func)
382 SocketNotifier * sn = new SocketNotifier(this, fd, func);
383 socket_notifiers_[fd] = sn;
384 connect(sn, SIGNAL(activated(int)), this, SLOT(socketDataReceived(int)));
388 void GuiApplication::socketDataReceived(int fd)
390 socket_notifiers_[fd]->func_();
394 void GuiApplication::unregisterSocketCallback(int fd)
396 socket_notifiers_.erase(fd);
400 void GuiApplication::commitData(QSessionManager & sm)
402 /// The implementation is required to avoid an application exit
403 /// when session state save is triggered by session manager.
404 /// The default implementation sends a close event to all
405 /// visible top level widgets when session managment allows
407 /// We are changing that to write all unsaved buffers...
408 if (sm.allowsInteraction() && !theBufferList().quitWriteAll())
413 ////////////////////////////////////////////////////////////////////////
414 // X11 specific stuff goes here...
416 bool GuiApplication::x11EventFilter(XEvent * xev)
422 case SelectionRequest: {
423 if (xev->xselectionrequest.selection != XA_PRIMARY)
425 LYXERR(Debug::GUI) << "X requested selection." << endl;
426 BufferView * bv = currentView()->view();
428 docstring const sel = bv->requestSelection();
434 case SelectionClear: {
435 if (xev->xselectionclear.selection != XA_PRIMARY)
437 LYXERR(Debug::GUI) << "Lost selection." << endl;
438 BufferView * bv = currentView()->view();
440 bv->clearSelection();
448 void GuiApplication::addMenuTranslator()
450 installTranslator(new MenuTranslator(this));
454 } // namespace frontend
457 #include "GuiApplication_moc.cpp"