GPS: add signal to show that a new fix has been acquired

This way if we don't have a current enough position we can wait for a
current fix to be acquired.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

core/gpslocation.cpp

@@ -171,6 +171,7 @@ void GpsLocation::newPosition(QGeoPositionInfo pos)
 		QString msg("received new position %1 after delta %2 threshold %3 (now %4 last %5)");
 		status(qPrintable(msg.arg(pos.coordinate().toString()).arg(delta).arg(prefs.time_threshold).arg(pos.timestamp().toString()).arg(QDateTime().fromSecsSinceEpoch(lastTime).toString())));
 		waitingForPosition = false;
+		acquiredPosition();
 		gpsTracker gt;
 		gt.when = pos.timestamp().toTime_t();
 		gt.when += gettimezoneoffset(gt.when);

core/gpslocation.h

@@ -59,6 +59,7 @@ private:
 
 signals:
 	void haveSourceChanged();
+	void acquiredPosition();
 
 public slots:
 	void serviceEnable(bool toggle);