--- a/dialogs/FBDVariableDialog.py Mon Aug 21 20:17:19 2017 +0000
+++ b/dialogs/FBDVariableDialog.py Mon Aug 21 23:22:58 2017 +0300
@@ -29,28 +29,31 @@
from graphics.FBD_Objects import FBD_Variable
from BlockPreviewDialog import BlockPreviewDialog
-#-------------------------------------------------------------------------------
+# -------------------------------------------------------------------------------
# Helpers
-#-------------------------------------------------------------------------------
+# -------------------------------------------------------------------------------
# Dictionaries containing correspondence between variable block class and string
# to be shown in Class combo box in both sense
-VARIABLE_CLASSES_DICT = {INPUT : _("Input"),
- INOUT : _("InOut"),
- OUTPUT : _("Output")}
+VARIABLE_CLASSES_DICT = {
+ INPUT: _("Input"),
+ INOUT: _("InOut"),
+ OUTPUT: _("Output")
+}
+
VARIABLE_CLASSES_DICT_REVERSE = dict(
[(value, key) for key, value in VARIABLE_CLASSES_DICT.iteritems()])
-#-------------------------------------------------------------------------------
+# -------------------------------------------------------------------------------
# Set Variable Parameters Dialog
-#-------------------------------------------------------------------------------
-
-"""
-Class that implements a dialog for defining parameters of a FBD variable graphic
-element
-"""
+# -------------------------------------------------------------------------------
+
class FBDVariableDialog(BlockPreviewDialog):
+ """
+ Class that implements a dialog for defining parameters of a FBD variable graphic
+ element
+ """
def __init__(self, parent, controller, tagname, exclude_input=False):
"""
@@ -61,70 +64,71 @@
@param exclude_input: Exclude input from variable class selection
"""
BlockPreviewDialog.__init__(self, parent, controller, tagname,
- title=_('Variable Properties'))
-
+ title=_('Variable Properties'))
+
# Init common sizers
self._init_sizers(4, 2, 4, None, 3, 2)
-
+
# Create label for variable class
class_label = wx.StaticText(self, label=_('Class:'))
self.LeftGridSizer.AddWindow(class_label, flag=wx.GROW)
-
+
# Create a combo box for defining variable class
self.Class = wx.ComboBox(self, style=wx.CB_READONLY)
self.Bind(wx.EVT_COMBOBOX, self.OnClassChanged, self.Class)
self.LeftGridSizer.AddWindow(self.Class, flag=wx.GROW)
-
+
# Create label for variable execution order
- execution_order_label = wx.StaticText(self,
- label=_('Execution Order:'))
+ execution_order_label = wx.StaticText(self,
+ label=_('Execution Order:'))
self.LeftGridSizer.AddWindow(execution_order_label, flag=wx.GROW)
-
+
# Create spin control for defining variable execution order
self.ExecutionOrder = wx.SpinCtrl(self, min=0, style=wx.SP_ARROW_KEYS)
- self.Bind(wx.EVT_SPINCTRL, self.OnExecutionOrderChanged,
+ self.Bind(wx.EVT_SPINCTRL, self.OnExecutionOrderChanged,
self.ExecutionOrder)
self.LeftGridSizer.AddWindow(self.ExecutionOrder, flag=wx.GROW)
-
+
# Create label for variable expression
name_label = wx.StaticText(self, label=_('Expression:'))
- self.RightGridSizer.AddWindow(name_label, border=5,
- flag=wx.GROW|wx.BOTTOM)
-
+ self.RightGridSizer.AddWindow(name_label, border=5,
+ flag=wx.GROW | wx.BOTTOM)
+
# Create text control for defining variable expression
self.Expression = wx.TextCtrl(self)
self.Bind(wx.EVT_TEXT, self.OnExpressionChanged, self.Expression)
self.RightGridSizer.AddWindow(self.Expression, flag=wx.GROW)
-
+
# Create a list box to selected variable expression in the list of
# variables defined in POU
- self.VariableName = wx.ListBox(self, size=wx.Size(-1,120),
- style=wx.LB_SINGLE|wx.LB_SORT)
+ self.VariableName = wx.ListBox(self, size=wx.Size(-1, 120),
+ style=wx.LB_SINGLE | wx.LB_SORT)
self.Bind(wx.EVT_LISTBOX, self.OnNameChanged, self.VariableName)
- self.RightGridSizer.AddWindow(self.VariableName, border=4, flag=wx.GROW|wx.TOP)
-
+ self.RightGridSizer.AddWindow(self.VariableName, border=4, flag=wx.GROW | wx.TOP)
+
# Add preview panel and associated label to sizers
self.MainSizer.AddWindow(self.PreviewLabel, border=20,
- flag=wx.GROW|wx.LEFT|wx.RIGHT)
+ flag=wx.GROW | wx.LEFT | wx.RIGHT)
self.MainSizer.AddWindow(self.Preview, border=20,
- flag=wx.GROW|wx.LEFT|wx.RIGHT)
-
+ flag=wx.GROW | wx.LEFT | wx.RIGHT)
+
# Add buttons sizer to sizers
- self.MainSizer.AddSizer(self.ButtonSizer, border=20,
- flag=wx.ALIGN_RIGHT|wx.BOTTOM|wx.LEFT|wx.RIGHT)
-
+ self.MainSizer.AddSizer(
+ self.ButtonSizer, border=20,
+ flag=wx.ALIGN_RIGHT | wx.BOTTOM | wx.LEFT | wx.RIGHT)
+
# Set options that can be selected in class combo box
for var_class, choice in VARIABLE_CLASSES_DICT.iteritems():
if not exclude_input or var_class != INPUT:
self.Class.Append(choice)
self.Class.SetSelection(0)
-
+
# Extract list of variables defined in POU
self.RefreshVariableList()
-
+
# Refresh values in name list box
self.RefreshNameList()
-
+
self.Preview.SetInitialSize(wx.Size(-1, 60))
self.Fit()
@@ -138,32 +142,31 @@
# Get variable class to select POU variable applicable
var_class = VARIABLE_CLASSES_DICT_REVERSE[
self.Class.GetStringSelection()]
-
+
# Refresh names in name list box by selecting variables in POU variables
# list that can be applied to variable class
self.VariableName.Clear()
for name, (var_type, value_type) in self.VariableList.iteritems():
if var_type != "Input" or var_class == INPUT:
self.VariableName.Append(name)
-
+
# Get variable expression and select corresponding value in name list
# box if it exists
selected = self.Expression.GetValue()
- if (selected != "" and
- self.VariableName.FindString(selected) != wx.NOT_FOUND):
+ if selected != "" and self.VariableName.FindString(selected) != wx.NOT_FOUND:
self.VariableName.SetStringSelection(selected)
else:
self.VariableName.SetSelection(wx.NOT_FOUND)
-
+
# Disable name list box if no name present inside
self.VariableName.Enable(self.VariableName.GetCount() > 0)
-
+
def SetValues(self, values):
"""
Set default variable parameters
@param values: Variable parameters values
"""
-
+
# Get class parameter value
var_class = values.get("class", None)
if var_class is not None:
@@ -171,10 +174,10 @@
self.Class.SetStringSelection(VARIABLE_CLASSES_DICT[var_class])
# Refresh names in name list box according to var class
self.RefreshNameList()
-
+
# For each parameters defined, set corresponding control value
for name, value in values.items():
-
+
# Parameter is variable expression
if name == "expression":
# Set expression text control value
@@ -184,15 +187,15 @@
self.VariableName.SetStringSelection(value)
else:
self.VariableName.SetSelection(wx.NOT_FOUND)
-
+
# Parameter is variable execution order
elif name == "executionOrder":
self.ExecutionOrder.SetValue(value)
-
+
# Refresh preview panel
self.RefreshPreview()
self.Fit()
-
+
def GetValues(self):
"""
Return block parameters defined in dialog
@@ -215,16 +218,16 @@
@param event: wx.Event from OK button
"""
message = None
-
+
# Test that an expression have been selected or typed by user
value = self.Expression.GetValue()
if value == "":
message = _("At least a variable or an expression must be selected!")
-
+
# Show error message if an error is detected
if message is not None:
self.ShowErrorMessage(message)
-
+
else:
# Call BlockPreviewDialog function
BlockPreviewDialog.OnOK(self, event)
@@ -236,7 +239,7 @@
"""
# Refresh name list box values
self.RefreshNameList()
-
+
self.RefreshPreview()
event.Skip()
@@ -249,10 +252,10 @@
# list box if value selected is valid
if self.VariableName.GetSelection() != wx.NOT_FOUND:
self.Expression.ChangeValue(self.VariableName.GetStringSelection())
-
- self.RefreshPreview()
- event.Skip()
-
+
+ self.RefreshPreview()
+ event.Skip()
+
def OnExpressionChanged(self, event):
"""
Called when expression text control is changed by user
@@ -261,10 +264,10 @@
# Select the corresponding value in name list box if it exists
self.VariableName.SetSelection(
self.VariableName.FindString(self.Expression.GetValue()))
-
- self.RefreshPreview()
- event.Skip()
-
+
+ self.RefreshPreview()
+ event.Skip()
+
def OnExecutionOrderChanged(self, event):
"""
Called when block execution control value changed
@@ -272,7 +275,7 @@
"""
self.RefreshPreview()
event.Skip()
-
+
def RefreshPreview(self):
"""
Refresh preview panel of graphic element
@@ -280,16 +283,14 @@
"""
# Get expression value to put in FBD variable element
name = self.Expression.GetValue()
-
+
# Set graphic element displayed, creating a FBD variable element
- self.Element = FBD_Variable(self.Preview,
- VARIABLE_CLASSES_DICT_REVERSE[
- self.Class.GetStringSelection()],
- name,
- self.VariableList.get(name, ("", ""))[1],
- executionOrder = self.ExecutionOrder.GetValue())
-
+ self.Element = FBD_Variable(
+ self.Preview,
+ VARIABLE_CLASSES_DICT_REVERSE[self.Class.GetStringSelection()],
+ name,
+ self.VariableList.get(name, ("", ""))[1],
+ executionOrder=self.ExecutionOrder.GetValue())
+
# Call BlockPreviewDialog function
BlockPreviewDialog.RefreshPreview(self)
-
-