new method okToContinue written in order to prevent accidental dataloss

QtPyLoT.py

@@ -220,9 +220,14 @@ class MainWindow(QMainWindow):
 #       maingrid = QGridLayout()
 #       maingrid.setSpacing(10)
 #       maingrid.addLayout(statLayout, 0, 0)
-#         maingrid.addWidget(dataLayout, 1, 0)
+#       maingrid.addWidget(self.getDataWidget(), 0, 1)
 #       self.setLayout(maingrid)
 
+    def okToContinue(self):
+        if self.dirty:
+            return self.saveData()
+        return True
+
     def plotData(self):
         pass #self.data.plotData(self.DataPlot)
 
@@ -273,9 +278,8 @@ class MainWindow(QMainWindow):
     def printEvent(self):
         pass
 
-    def cleanUp(self):
-        self
-        return 0
+    def closeEvent(self):
+        return self.saveData()
 
     def helpHelp(self):
         if checkurl():