C++ QApplication::applicationFilePath方法代码示例

void registerXdgMime(QApplication &app){
    // MacOS handled via Info.plist
    // Windows handled in the installer by rbrunner7

    QString xdg = QString(
            "[Desktop Entry]\n"
            "Name=Monero GUI\n"
            "GenericName=Monero-GUI\n"
            "X-GNOME-FullName=Monero-GUI\n"
            "Comment=Monero GUI\n"
            "Keywords=Monero;\n"
            "Exec=%1 %u\n"
            "Terminal=false\n"
            "Type=Application\n"
            "Icon=monero\n"
            "Categories=Network;GNOME;Qt;\n"
            "MimeType=x-scheme-handler/monero;x-scheme-handler/moneroseed\n"
            "StartupNotify=true\n"
            "X-GNOME-Bugzilla-Bugzilla=GNOME\n"
            "X-GNOME-UsesNotifications=true\n"
    ).arg(app.applicationFilePath());

    QString appPath = QStandardPaths::writableLocation(QStandardPaths::ApplicationsLocation);
    QString filePath = QString("%1/monero-gui.desktop").arg(appPath);

    qDebug() << QString("Writing %1").arg(filePath);
    QFile file(filePath);
    if(file.open(QIODevice::WriteOnly)){
        QTextStream out(&file); out << xdg << endl;
        file.close();
    }
    else
        file.close();
}

void Backup::figureOutBinaryPath(const char *argv0, QApplication &app)
{
    /*
       The application can be launched by two ways:
       - Globaly (app.applicationFilePath() is good)
       - In KDevelop or with an absolute path (app.applicationFilePath() is wrong)
       This function is called at the very start of main() so that the current directory has not been changed yet.

       Command line (argv[0])   QDir(argv[0]).canonicalPath()                   app.applicationFilePath()
       ======================   =============================================   =========================
       "basket"                 ""                                              "/opt/kde3/bin/basket"
       "./src/.libs/basket"     "/home/seb/prog/basket/debug/src/.lib/basket"   "/opt/kde3/bin/basket"
    */

    binaryPath = QDir(argv0).canonicalPath();
    if (binaryPath.isEmpty())
        binaryPath = app.applicationFilePath();
}

//.........这里部分代码省略.........

					//        				H2Core::Logger::get_instance()->log("[LASH] Restore file: " + songFilename);

					lash_event_destroy(lash_event);
				}
				else if (lash_event)
				{
					//        				H2Core::Logger::get_instance()->log("[LASH] ERROR: Instead of restore file got event: " + lash_event_get_type(lash_event));
					lash_event_destroy(lash_event);
				}
			}
		}
#endif

#ifdef H2CORE_HAVE_JACKSESSION
		if(!sessionId.isEmpty()){
			pPref->setJackSessionUUID( sessionId );

			/*
					 * imo, jack sessions use jack as default audio driver.
					 * hydrogen remember last used audiodriver.
					 * here we make it save that hydrogen start in a jacksession case
					 * every time with jack as audio driver
					 */
			pPref->m_sAudioDriver = "Jack";

		}

		/*
		 * the use of applicationFilePath() make it
		 * possible to use different executables.
		* for example if you start hydrogen from a local
		* build directory.
		*/

		QString path = pQApp->applicationFilePath();
		pPref->setJackSessionApplicationPath( path );
#endif

		// Hydrogen here to honor all preferences.
		H2Core::Hydrogen::create_instance();

#ifdef H2CORE_HAVE_NSMSESSION
		H2Core::Hydrogen::get_instance()->startNsmClient();
		songFilename = pPref->getNsmSongName();
#endif

		MainForm *pMainForm = new MainForm( pQApp, songFilename );
		pMainForm->show();
		pSplash->finish( pMainForm );

		if( ! playlistFilename.isEmpty() ){
			bool loadlist = HydrogenApp::get_instance()->getPlayListDialog()->loadListByFileName( playlistFilename );
			if ( loadlist ){
				Playlist::get_instance()->setNextSongByNumber( 0 );
			} else {
				___ERRORLOG ( "Error loading the playlist" );
			}
		}

		if( ! drumkitToLoad.isEmpty() ) {
			H2Core::Drumkit* drumkitInfo = H2Core::Drumkit::load_by_name( drumkitToLoad, true );
			if ( drumkitInfo ) {
				H2Core::Hydrogen::get_instance()->loadDrumkit( drumkitInfo );
				HydrogenApp::get_instance()->onDrumkitLoad( drumkitInfo->get_name() );
			} else {
				___ERRORLOG ( "Error loading the drumkit" );
			}
		}

		pQApp->exec();

		delete pSplash;
		delete pMainForm;
		delete pQApp;
		delete pPref;
		delete H2Core::EventQueue::get_instance();
		delete H2Core::AudioEngine::get_instance();

		delete MidiMap::get_instance();
		delete MidiActionManager::get_instance();

		___INFOLOG( "Quitting..." );
		cout << "\nBye..." << endl;
		delete H2Core::Logger::get_instance();

		if (H2Core::Object::count_active()) {
			H2Core::Object::write_objects_map_to_cerr();
		}

	}
	catch ( const H2Core::H2Exception& ex ) {
		std::cerr << "[main] Exception: " << ex.what() << std::endl;
	}
	catch (...) {
		std::cerr << "[main] Unknown exception X-(" << std::endl;
	}

	return 0;
}