Two small bugs solved: spinbox blocked only if scan starts, and when canceling...

Two small bugs solved: spinbox blocked only if scan starts, and when canceling the roi window gui doesn't crash.

myToolbar.py

@@ -147,9 +147,14 @@ class myToolbarMenu(QWidget):
         
     def openRoi(self):
         print('opening roi window')
-        ao = self.getChoiceForRoi()
-        self.startRoiThread(ao)
-       
+        items = self.aosDicc.keys()
+        item, okPressed = QInputDialog.getItem(self, "Get item","Color:", items, 0, False)
+        if okPressed and item:
+            ao = self.aosDicc[item]
+            self.roiW = roiWindow(ao)
+            self.roiW.w.show()
+        else:
+            print('Roi canceled')
     
     def startRoiThread(self, ao):
         self.roiW = roiWindow(ao)
@@ -159,5 +164,6 @@ class myToolbarMenu(QWidget):
         items = self.aosDicc.keys()
         item, okPressed = QInputDialog.getItem(self, "Get item","Color:", items, 0, False)
         if okPressed and item:
+            self.startRoiThread(item)
             return self.aosDicc[item]
     
\ No newline at end of file

myWidgets.py

@@ -137,11 +137,12 @@ class anal_control_signal(QWidget):
             self.scan_direction = -abs(b-a)/n # this is the size in voltage of each step
             self.scan_step = float(self.sb.val) # from here it beggins
             
-            self.sb.setEnabled(False)
+            
             
             if self.scan_step > b or self.scan_step < a:
                 print('scan can not start outside scan range and scan start should be lower than scan stop')
             else:
+                self.sb.setEnabled(False)
                 self.scan_button.setStyleSheet("background-color: green")
                 self.ScanTimer.start(dt*1e3)
                 self.scan_button.setText('Scanning')

webcamROI.py

@@ -24,7 +24,7 @@ class roiWindow(QMainWindow):
         super().__init__()
         
         self.aoScan = aoScan
-        print(self.aoScan.name, self.aoScan.sb.val)
+        print( 'Analog output selected for roi analysis: %s' % (self.aoScan.name) )
         
         
         self.cap = cv2.VideoCapture(0)