Merge pull request #235 from zhujun98/fix_bug_in_data_source_tree

Fix bug in data source tree

Author: zhujun98

docs/images/data_source_tree.png

@@ -281,13 +281,17 @@ def setData(self, index, value, role=None) -> bool:
                                 self.dataChanged.emit(index.sibling(i, 0),
                                                       index.siblingAtRow(i))
                                 self.source_item_toggled_sgn.emit(
-                                    False,
-                                    f'{item_sb.name()} {item_sb.ppt()}')
+                                    False, f'{item_sb.name()} {item_sb.ppt()}')
                                 break
 
                 item.setChecked(value)
             else:  # role == Qt.EditRole
+                old_src_name = item.name()
+                old_ppt = item.ppt()
                 item.setData(value, index.column())
+                # remove registered item with the old device ID and property
+                self.source_item_toggled_sgn.emit(
+                    False, f'{old_src_name} {old_ppt}')
 
             main_det = config["DETECTOR"]
             ctg = item.parent().name()

extra_foam/gui/ctrl_widgets/data_source_widget.py

@@ -212,23 +212,35 @@ def testDataSourceTreeModelPs(self, control_sources, pipeline_sources):
         spy = QtTest.QSignalSpy(model.source_item_toggled_sgn)
         # change device ID
         model.setData(model.index(0, 2, dssc_ctg), 'A+', Qt.EditRole)
-        self.assertEqual(1, len(spy))
-        self.assertTrue(spy[0][0])
-        self.assertTupleEqual(('DSSC', 'A+', '[]', 'a', '[None, None]', '', 1), spy[0][1])
+        self.assertEqual(2, len(spy))
+        # check signal for deleting old source
+        self.assertFalse(spy[0][0])
+        self.assertEqual('A a', spy[0][1])
+        # check signal for adding new source
+        self.assertTrue(spy[1][0])
+        self.assertTupleEqual(('DSSC', 'A+', '[]', 'a', '[None, None]', '', 1), spy[1][1])
 
         spy = QtTest.QSignalSpy(model.source_item_toggled_sgn)
         # change property
         model.setData(model.index(0, 3, dssc_ctg), 'a-', Qt.EditRole)
-        self.assertEqual(1, len(spy))
-        self.assertTrue(spy[0][0])
-        self.assertTupleEqual(('DSSC', 'A+', '[]', 'a-', '[None, None]', '', 1), spy[0][1])
+        self.assertEqual(2, len(spy))
+        # check signal for deleting old source
+        self.assertFalse(spy[0][0])
+        self.assertEqual('A+ a', spy[0][1])
+        # check signal for adding new source
+        self.assertTrue(spy[1][0])
+        self.assertTupleEqual(('DSSC', 'A+', '[]', 'a-', '[None, None]', '', 1), spy[1][1])
 
         spy = QtTest.QSignalSpy(model.source_item_toggled_sgn)
         # change slicer
         model.setData(model.index(0, 4, dssc_ctg), '::2', Qt.EditRole)
-        self.assertEqual(1, len(spy))
-        self.assertTrue(spy[0][0])
-        self.assertTupleEqual(('DSSC', 'A+', '[]', 'a-', '[None, None, 2]', '', 1), spy[0][1])
+        self.assertEqual(2, len(spy))
+        # check signal for deleting old source
+        self.assertFalse(spy[0][0])
+        # deleting does not check slicer
+        # check signal for adding new source
+        self.assertTrue(spy[1][0])
+        self.assertTupleEqual(('DSSC', 'A+', '[]', 'a-', '[None, None, 2]', '', 1), spy[1][1])
 
         spy = QtTest.QSignalSpy(model.source_item_toggled_sgn)
         # change a DSSC source
@@ -313,9 +325,13 @@ def testDataSourceTreeModelPs(self, control_sources, pipeline_sources):
         spy = QtTest.QSignalSpy(model.source_item_toggled_sgn)
         # change slicer
         model.setData(model.index(1, 5, xgm_ctg), '-1, 1', Qt.EditRole)
-        self.assertEqual(1, len(spy))
-        self.assertTrue(spy[0][0])
-        self.assertTupleEqual(('XGM', 'XA', '[]', 'flux', '', '(-1.0, 1.0)', 0), spy[0][1])
+        self.assertEqual(2, len(spy))
+        # delete old source
+        self.assertFalse(spy[0][0])
+        # deleting does not check range
+        # add new source
+        self.assertTrue(spy[1][0])
+        self.assertTupleEqual(('XGM', 'XA', '[]', 'flux', '', '(-1.0, 1.0)', 0), spy[1][1])
 
     @patch.dict(config._data, {"PULSE_RESOLVED": False})
     @patch.object(ConfigWrapper, "pipeline_sources", new_callable=PropertyMock)