added mime filetype in qtreeview

tools.cpp

@@ -71,4 +71,10 @@ bool testRsyncReturn(MainWindow * w, QProcess * myProcess)
     return false;
 }
 
-
+QString getFileType(QString filename)
+{
+    QMimeDatabase db;
+    QMimeType mime = db.mimeTypeForFile(filename);
+    QString returnValue = mime.name().section('/',1 ,1);
+    return returnValue;
+}