L'application se lance desormais une seule fois par utilisateur

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@348 bfdf4180-ca20-0410-9c96-a3a8aa849046

qetsingleapplication.h

@@ -0,0 +1,56 @@
+/*
+	Copyright 2006-2008 Xavier Guerrin
+	This file is part of QElectroTech.
+	
+	QElectroTech is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 2 of the License, or
+	(at your option) any later version.
+	
+	QElectroTech is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+	
+	You should have received a copy of the GNU General Public License
+	along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#ifndef QET_SINGLE_APPLICATION_H
+#define QET_SINGLE_APPLICATION_H
+#include <QApplication>
+#include <QSharedMemory>
+#include <QLocalServer>
+/**
+	Cette classe represente une application Qt ne s'executant qu'en un seul
+	exemplaire en fonction d'une cle unique (de type QString).
+*/
+class QETSingleApplication : public QApplication {
+	Q_OBJECT
+	// constructeurs, destructeur
+	public:
+	QETSingleApplication(int &, char **, const QString);
+	virtual ~QETSingleApplication();
+	
+	private:
+	QETSingleApplication(const QETSingleApplication &);
+	
+	// methodes
+	public:
+	bool isRunning();
+	bool sendMessage(const QString &);
+	
+	public slots:
+	void receiveMessage();
+	
+	signals:
+	void messageAvailable(QString);
+	
+	// attributs
+	private:
+	bool is_running_;
+	QString unique_key_;
+	QSharedMemory shared_memory_;
+	QLocalServer *local_server_;
+	static const int timeout_;
+};
+#endif