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"
17 #include "qt_helpers.h"
20 #include "frontends/alert.h"
21 #include "frontends/LyXView.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(argc, argv)
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 Clipboard & GuiApplication::clipboard()
203 Selection & GuiApplication::selection()
209 int GuiApplication::exec()
211 QTimer::singleShot(1, this, SLOT(execBatchCommands()));
212 return QApplication::exec();
216 void GuiApplication::exit(int status)
218 QApplication::exit(status);
222 void GuiApplication::execBatchCommands()
224 LyX::ref().execBatchCommands();
228 string const GuiApplication::romanFontName()
231 font.setKerning(false);
232 font.setStyleHint(QFont::Serif);
233 font.setFamily("serif");
235 return fromqstr(QFontInfo(font).family());
239 string const GuiApplication::sansFontName()
242 font.setKerning(false);
243 font.setStyleHint(QFont::SansSerif);
244 font.setFamily("sans");
246 return fromqstr(QFontInfo(font).family());
250 string const GuiApplication::typewriterFontName()
253 font.setKerning(false);
254 font.setStyleHint(QFont::TypeWriter);
255 font.setFamily("monospace");
257 return fromqstr(QFontInfo(font).family());
261 bool GuiApplication::event(QEvent * e)
264 case QEvent::FileOpen: {
265 // Open a file; this happens only on Mac OS X for now
266 QFileOpenEvent * foe = static_cast<QFileOpenEvent *>(e);
268 if (!currentView() || !currentView()->view())
269 // The application is not properly initialized yet.
270 // So we acknowledge the event and delay the file opening
271 // until LyX is ready.
272 // FIXME UNICODE: FileName accept an utf8 encoded string.
273 LyX::ref().addFileToLoad(FileName(fromqstr(foe->file())));
275 lyx::dispatch(FuncRequest(LFUN_FILE_OPEN,
276 qstring_to_ucs4(foe->file())));
282 return QApplication::event(e);
287 bool GuiApplication::notify(QObject * receiver, QEvent * event)
289 bool return_value = false;
291 return_value = QApplication::notify(receiver, event);
293 catch (support::ExceptionMessage const & e) {
294 if (e.type_ == support::ErrorException) {
295 Alert::error(e.title_, e.details_);
296 LyX::cref().emergencyCleanup();
297 QApplication::exit(1);
298 } else if (e.type_ == support::WarningException) {
299 Alert::warning(e.title_, e.details_);
303 catch (std::exception const & e) {
304 docstring s = _("LyX has caught an exception, it will now "
305 "attemp to save all unsaved documents and exit."
307 s += from_ascii(e.what());
308 Alert::error(_("Software exception Detected"), s);
309 LyX::cref().emergencyCleanup();
310 QApplication::exit(1);
313 docstring s = _("LyX has caught some really weird exception, it will "
314 "now attemp to save all unsaved documents and exit.");
315 Alert::error(_("Software exception Detected"), s);
316 LyX::cref().emergencyCleanup();
317 QApplication::exit(1);
324 void GuiApplication::syncEvents()
326 // This is the ONLY place where processEvents may be called.
327 // During screen update/ redraw, this method is disabled to
328 // prevent keyboard events being handed to the LyX core, where
329 // they could cause re-entrant calls to screen update.
330 processEvents(QEventLoop::ExcludeUserInputEvents);
334 bool GuiApplication::getRgbColor(ColorCode col,
337 QColor const & qcol = color_cache_.get(col);
338 if (!qcol.isValid()) {
344 rgbcol.r = qcol.red();
345 rgbcol.g = qcol.green();
346 rgbcol.b = qcol.blue();
351 string const GuiApplication::hexName(ColorCode col)
353 return support::ltrim(fromqstr(color_cache_.get(col).name()), "#");
357 void GuiApplication::updateColor(ColorCode)
359 // FIXME: Bleh, can't we just clear them all at once ?
360 color_cache_.clear();
364 void GuiApplication::registerSocketCallback(int fd, SocketCallback func)
366 SocketNotifier * sn = new SocketNotifier(this, fd, func);
367 socket_notifiers_[fd] = sn;
368 connect(sn, SIGNAL(activated(int)), this, SLOT(socketDataReceived(int)));
372 void GuiApplication::socketDataReceived(int fd)
374 socket_notifiers_[fd]->func_();
378 void GuiApplication::unregisterSocketCallback(int fd)
380 socket_notifiers_.erase(fd);
384 void GuiApplication::commitData(QSessionManager & sm)
386 /// The implementation is required to avoid an application exit
387 /// when session state save is triggered by session manager.
388 /// The default implementation sends a close event to all
389 /// visible top level widgets when session managment allows
391 /// We are changing that to write all unsaved buffers...
392 if (sm.allowsInteraction() && !theBufferList().quitWriteAll())
397 ////////////////////////////////////////////////////////////////////////
398 // X11 specific stuff goes here...
400 bool GuiApplication::x11EventFilter(XEvent * xev)
406 case SelectionRequest: {
407 if (xev->xselectionrequest.selection != XA_PRIMARY)
409 LYXERR(Debug::GUI) << "X requested selection." << endl;
410 BufferView * bv = currentView()->view();
412 docstring const sel = bv->requestSelection();
418 case SelectionClear: {
419 if (xev->xselectionclear.selection != XA_PRIMARY)
421 LYXERR(Debug::GUI) << "Lost selection." << endl;
422 BufferView * bv = currentView()->view();
424 bv->clearSelection();
432 void GuiApplication::addMenuTranslator()
434 installTranslator(new MenuTranslator(this));
438 } // namespace frontend
441 #include "GuiApplication_moc.cpp"