int main(int pArgc, char *pArgv[])
{
int res;
// Create the application
SharedTools::QtSingleApplication *app = new SharedTools::QtSingleApplication(QFileInfo(pArgv[0]).baseName(),
pArgc, pArgv);
// Some general initialisations
OpenCOR::initApplication(app);
#if defined(Q_OS_WIN)
// Do nothing...
#elif defined(Q_OS_LINUX) || defined(Q_OS_MAC)
// Try to run OpenCOR as a console application
// Note: in the case of Windows, we have two binaries (.com and .exe which
// are for the pure console and GUI versions of OpenCOR, resp.). This
// means that when a console window is open, to enter something like:
// C:\>OpenCOR
// will effectively call OpenCOR.com. From there, should there be no
// argument that requires console treatment, the GUI version of
// OpenCOR will then be launched. This is, unfortunately, the only way
// to have OpenCOR behave as both a console and GUI application on
// Windows, hence the ../winConsole/main.cpp file which is used to
// generate the console version of OpenCOR...
if (OpenCOR::consoleApplication(app, &res)) {
// OpenCOR was run as a proper console application, so...
delete app;
return res;
}
#else
#error Unsupported platform
#endif
// Send a message (containing the arguments that were passed to this
// instance of OpenCOR minus the first argument since it corresponds to the
// full path to the executable which we are not interested in) to the
// 'official' instance of OpenCOR, should there be one. If there is no
// 'official' instance of OpenCOR, then just carry on as normal, otherwise
// exit since we only want one instance of OpenCOR at any given time
QStringList appArguments = app->arguments();
appArguments.removeFirst();
QString arguments = appArguments.join("|");
if (app->isRunning()) {
app->sendMessage(arguments);
delete app;
return 0;
}
// Specify where to find non-OpenCOR plugins (only required on Windows)
#ifdef Q_OS_WIN
app->addLibraryPath( QDir(app->applicationDirPath()).canonicalPath()
+QDir::separator()+QString("..")
+QDir::separator()+"plugins");
#endif
// Remove all 'global' instances, in case OpenCOR previously crashed or
// something (and therefore didn't remove all of them before quitting)
removeInstances();
// Create the main window
OpenCOR::MainWindow *win = new OpenCOR::MainWindow();
// Keep track of the main window (required by QtSingleApplication so that it
// can do what it's supposed to be doing)
app->setActivationWindow(win);
// Make sure that OpenCOR can handle a file opening request, as well as a
// message sent by another instance of itself
QObject::connect(app, SIGNAL(fileOpenRequest(const QString &)),
win, SLOT(fileOpenRequest(const QString &)));
QObject::connect(app, SIGNAL(messageReceived(const QString &)),
win, SLOT(messageReceived(const QString &)));
// Handle the arguments
win->handleArguments(arguments);
// Show the main window
win->show();
// Execute the application
res = app->exec();
// Keep track of the application file and directory paths (in case we need
// to restart OpenCOR)
QString appFilePath = app->applicationFilePath();
QString appDirPath = app->applicationDirPath();
// Delete the main window
delete win;
// Remove all 'global' instances that were created and used during this
// session
removeInstances();
// Delete the application
delete app;
// We are done with the execution of the application, so now the question is
// whether we need to restart
// Note: we do this here rather than 'within' the GUI because once we have
// launched a new instance of OpenCOR, we want this instance of
// OpenCOR to finish as soon as possible which will be the case here
// since all that remains to be done is to return the result of the
// execution of the application...
if (res == OpenCOR::NeedRestart)
// Restart OpenCOR, but without providing any of the argument with which
// OpenCOR was originally started, since we want to reset everything
QProcess::startDetached(appFilePath, QStringList(), appDirPath);
// We are done, so...
return res;
}
int main(int pArgC, char *pArgV[])
{
// Initialise Qt's message pattern
OpenCOR::initQtMessagePattern();
// Determine whether we should try the CLI version of OpenCOR:
// - Windows: we never try the CLI version of OpenCOR. We go straight for
// its GUI version.
// - Linux: we always try the CLI version of OpenCOR and then go for its
// GUI version, if needed.
// - OS X: we try the CLI version of OpenCOR unless the user double clicks
// on the OpenCOR bundle or opens it from the command line by
// entering something like:
// open OpenCOR.app
// in which case we go for its GUI version.
// Note #1: on Windows, we have two binaries (.com and .exe that are for the
// CLI and GUI versions of OpenCOR, respectively). This means that
// when a console window is open, to enter something like:
// C:\>OpenCOR
// will effectively call OpenCOR.com. From there, should there be
// no argument that requires CLI treatment, then the GUI version of
// OpenCOR will be run. This is, unfortunately, the only way to
// have OpenCOR to behave as both a CLI and a GUI application on
// Windows, hence the [OpenCOR]/windows/main.cpp file, which is
// used to generate the CLI version of OpenCOR...
// Note #2: on OS X, if we were to try to open the OpenCOR bundle from the
// command line, then we would get an error message similar to:
// LSOpenURLsWithRole() failed with error -10810 for the file [SomePath]/OpenCOR.app.
// Fortunately, when double clicking on the OpenCOR bundle or
// opening it from the command line, a special argument in the form
// of -psn_0_1234567 is passed to OpenCOR, so we can use that to
// determine whether we need to force OpenCOR to be run in GUI mode
// or whether we first try the CLI version of OpenCOR, and then its
// GUI version, if needed...
#if defined(Q_OS_WIN)
bool tryCliVersion = false;
#elif defined(Q_OS_LINUX)
bool tryCliVersion = true;
#elif defined(Q_OS_MAC)
bool tryCliVersion = (pArgC == 1) || memcmp(pArgV[1], "-psn_", 5);
#else
#error Unsupported platform
#endif
// Run the CLI version of OpenCOR, if possible/needed
if (tryCliVersion) {
// Initialise the plugins path
OpenCOR::initPluginsPath(pArgV[0]);
// Create and initialise the CLI version of OpenCOR
OpenCOR::CliApplication *cliApp = new OpenCOR::CliApplication(pArgC, pArgV);
OpenCOR::initApplication();
// Try to run the CLI version of OpenCOR
int res;
bool runCliApplication = cliApp->run(&res);
delete cliApp;
if (runCliApplication) {
// OpenCOR was run as a CLI application, so leave
return res;
}
// Note: at this stage, we tried the CLI version of OpenCOR, but in the
// end we need to go for its GUI version, so start over but with
// the GUI version of OpenCOR this time...
}
// Make sure that we always use indirect rendering on Linux
// Note: indeed, depending on which plugins are selected, OpenCOR may need
// LLVM. If that's the case, and in case the user's video card uses a
// driver that relies on LLVM (e.g. Gallium3D and Mesa 3D), then there
// may be a conflict between the version of LLVM used by OpenCOR and
// the one used by the video card. One way to address this issue is by
// using indirect rendering...
#ifdef Q_OS_LINUX
qputenv("LIBGL_ALWAYS_INDIRECT", "1");
#endif
// Initialise the plugins path
OpenCOR::initPluginsPath(pArgV[0]);
// Create the GUI version of OpenCOR
OpenCOR::GuiApplication *guiApp = new OpenCOR::GuiApplication(QFileInfo(pArgV[0]).baseName(),
pArgC, pArgV);
// Send a message (containing the arguments that were passed to this
// instance of OpenCOR minus the first one since it corresponds to the full
// path to our executable, which we are not interested in) to our 'official'
// instance of OpenCOR, should there be one (if there is none, then just
// carry on as normal, otherwise exit since we want only one instance of
// OpenCOR at any given time)
QStringList appArguments = guiApp->arguments();
appArguments.removeFirst();
QString arguments = appArguments.join("|");
if (guiApp->isRunning()) {
guiApp->sendMessage(arguments);
delete guiApp;
return 0;
}
// Initialise the GUI version of OpenCOR
QString appDate = QString();
OpenCOR::initApplication(&appDate);
// Check whether we want to check for new versions at startup and, if so,
// whether a new version of OpenCOR is available
QSettings settings;
#ifndef QT_DEBUG
settings.beginGroup("CheckForUpdatesWindow");
bool checkForUpdatesAtStartup = settings.value(OpenCOR::SettingsCheckForUpdatesAtStartup, true).toBool();
bool includeSnapshots = settings.value(OpenCOR::SettingsIncludeSnapshots, false).toBool();
settings.endGroup();
if (checkForUpdatesAtStartup) {
OpenCOR::CheckForUpdatesEngine *checkForUpdatesEngine = new OpenCOR::CheckForUpdatesEngine(appDate);
checkForUpdatesEngine->check();
if ( ( includeSnapshots && checkForUpdatesEngine->hasNewerVersion())
|| (!includeSnapshots && checkForUpdatesEngine->hasNewerOfficialVersion())) {
// Retrieve the language to be used to show the check for updates
// window
QString locale = OpenCOR::locale();
QLocale::setDefault(QLocale(locale));
QTranslator qtTranslator;
QTranslator appTranslator;
qtTranslator.load(":qt_"+locale);
guiApp->installTranslator(&qtTranslator);
appTranslator.load(":app_"+locale);
guiApp->installTranslator(&appTranslator);
// Show the check for updates window
// Note: checkForUpdatesEngine gets deleted by
// checkForUpdatesWindow...
OpenCOR::CheckForUpdatesWindow checkForUpdatesWindow(checkForUpdatesEngine);
settings.beginGroup(checkForUpdatesWindow.objectName());
checkForUpdatesWindow.loadSettings(&settings);
settings.endGroup();
checkForUpdatesWindow.exec();
settings.beginGroup(checkForUpdatesWindow.objectName());
checkForUpdatesWindow.saveSettings(&settings);
settings.endGroup();
} else {
delete checkForUpdatesEngine;
}
}
#endif
// Create and show our splash screen, if we are not in debug mode
#ifndef QT_DEBUG
OpenCOR::SplashScreenWindow *splashScreen = new OpenCOR::SplashScreenWindow();
splashScreen->show();
#endif
// Create our main window
OpenCOR::MainWindow *win = new OpenCOR::MainWindow(appDate);
// Keep track of our main window (required by QtSingleApplication so that it
// can do what it's supposed to be doing)
guiApp->setActivationWindow(win);
// Handle our arguments
win->handleArguments(appArguments);
// Show our main window
win->show();
// By default, we can and should execute our application
bool canExecuteAplication = true;
// Close and delete our splash screen once our main window is visible, if we
// are not in debug mode
#ifndef QT_DEBUG
splashScreen->closeAndDeleteAfter(win);
// Make sure that our main window is in the foreground, unless the user
// decided to close our main window while we were showing our splash screen
// Note: indeed, on Linux, to show our splash screen may result in our main
// window being shown in the background...
if (!win->shuttingDown())
win->showSelf();
else
canExecuteAplication = false;
#endif
// Execute our application, if possible
int res;
if (canExecuteAplication)
res = guiApp->exec();
else
res = 0;
// Keep track of our application file and directory paths (in case we need
// to restart OpenCOR)
QString appFilePath = guiApp->applicationFilePath();
QString appDirPath = guiApp->applicationDirPath();
// Delete our main window
delete win;
// We use QtWebKit, and QWebPage in particular, which results in some leak
// messages being generated on Windows when leaving OpenCOR. This is because
// an object cache is shared between all QWebPage instances. So to destroy a
// QWebPage instance doesn't clear the cache, hence the leak messages.
// However, those messages are 'only' warnings, so we can safely live with
// them. Still, it doesn't look 'good', so we clear the memory caches, thus
// avoiding those leak messages...
// Note: the below must absolutely be done after calling guiApp->exec() and
// before deleting guiApp...
#ifdef Q_OS_WIN
QWebSettings::clearMemoryCaches();
#endif
// Delete our application
delete guiApp;
// We are done with the execution of our application, so now the question is
// whether we need to restart
// Note: we do this here rather than 'within' the GUI because once we have
// launched a new instance of OpenCOR, we want this instance of
// OpenCOR to finish as soon as possible, which will be the case here
// since all that remains to be done is to return the result of the
// execution of our application...
if ((res == OpenCOR::CleanRestart) || (res == OpenCOR::NormalRestart)) {
// We want to restart, so the question is whether we want a normal
// restart or a clean one
if (res == OpenCOR::CleanRestart) {
// We want a clean restart, so clear all the user settings (indeed,
// this will ensure that the various windows are, for instance,
// properly reset with regards to their dimensions)
settings.clear();
}
// Restart OpenCOR, but without providing any of the arguments that were
// originally passed to us since we want to reset everything
QProcess::startDetached(appFilePath, QStringList(), appDirPath);
}
// We are done running the GUI version of OpenCOR, so leave
return res;
}