comparison framework/VersionTester.h @ 180:84b2c1a4984a

* Offer the user a chance to answer our survey (only once, and only after
  several runs of the program, and only if the survey is known to be live on
  the website)

+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Sonic Visualiser
+    An audio file viewer and annotation editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    
+    This program 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.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+/*
+   This is a modified version of a source file from the 
+   Rosegarden MIDI and audio sequencer and notation editor.
+   This file copyright 2000-2009 Chris Cannam.
+*/
+
+#ifndef _VERSION_TESTER_H_
+#define _VERSION_TESTER_H_
+
+#include <QStringList>
+#include <QString>
+#include <QObject>
+
+class QHttpResponseHeader;
+
+class VersionTester : public QObject
+{
+    Q_OBJECT
+
+public:
+    VersionTester(QString hostname, QString versionFilePath, QString myVersion);
+    virtual ~VersionTester();
+    
+    static bool isVersionNewerThan(QString, QString);
+
+signals:
+    void newerVersionAvailable(QString);
+
+protected slots:
+    void httpResponseHeaderReceived(const QHttpResponseHeader &);
+    void httpDone(bool);
+
+private:
+    bool m_httpFailed;
+    QString m_myVersion;
+};
+
+#endif
+