add completer to general fit linedit

src/gui_qt/fit/fit_forms.py

@@ -19,8 +19,6 @@ class FitModelWidget(QtWidgets.QWidget, Ui_FitParameter):
 
         self.parametername.setText(label + ' ')
 
-        # validator = QtGui.QDoubleValidator()
-        # validator.setDecimals(9)
         # self.parameter_line.setValidator(validator)
         self.parameter_line.setText('1')
         self.parameter_line.setMaximumWidth(60)
@@ -38,15 +36,21 @@ class FitModelWidget(QtWidgets.QWidget, Ui_FitParameter):
         if fixed:
             self.fixed_check.hide()
 
-        self.menu = QtWidgets.QMenu(self)
-        self.add_links()
-
         self.is_linked = None
         self.parameter_pos = None
         self.func_idx = None
 
         self._linetext = '1'
 
+        self.completer = QtWidgets.QCompleter()
+        self.completer.setCompletionMode(QtWidgets.QCompleter.UnfilteredPopupCompletion)
+        self.parameter_hint_model = QtGui.QStandardItemModel()
+        self.completer.setModel(self.parameter_hint_model)
+        self.parameter_line.setCompleter(self.completer)
+
+        self.menu = QtWidgets.QMenu(self)
+        self.add_links()
+
     @property
     def name(self):
         return convert(self.parametername.text().strip(), old='html', new='str')
@@ -130,16 +134,25 @@ class FitModelWidget(QtWidgets.QWidget, Ui_FitParameter):
             parameter = {}
         self.menu.clear()
 
+        self.parameter_hint_model.clear()
+
         ac = QtWidgets.QAction('Link to...', self)
         ac.triggered.connect(self.link_parameter)
         self.menu.addAction(ac)
 
         for model_key, model_funcs in parameter.items():
             m = QtWidgets.QMenu('Model ' + model_key, self)
+            hint_key = model_key
+
             for func_name, func_params in model_funcs.items():
                 m2 = QtWidgets.QMenu(func_name, m)
+                hint_key += f'.{func_name}'
                 for p_name, idx in func_params:
                     ac = QtWidgets.QAction(p_name, m2)
+                    hint_key += f'.{p_name}'
+                    item = QtGui.QStandardItem(hint_key)
+                    item.setData((model_key, *idx))
+                    self.parameter_hint_model.appendRow(item)
                     ac.setData((model_key, *idx))
                     ac.triggered.connect(self.link_parameter)
                     m2.addAction(ac)

src/gui_qt/fit/fit_parameter.py

@@ -339,7 +339,7 @@ class ParameterSingleWidget(QtWidgets.QWidget):
         # self.value_line.setText(f'{float(val):.5g}')
         self.value_line.setText(f'{val}')
 
-    def show_as_local_parameter(self, is_local):
+    def show_as_local_parameter(self, is_local: bool):
         if is_local:
             self.label.setStyleSheet('font-weight: bold;')
         else: