dialogs/SFCStepDialog.py
author Edouard Tisserant
Wed, 01 Jul 2020 10:36:20 +0200
changeset 2686 703ebf57508a
parent 2591 5f685bcd3ad6
child 3303 0ffb41625592
permissions -rw-r--r--
Modbus and Bacnet websettings : Rename variables and functions to avoid name collisions.

Websettings for modbus and bacnet are now passed to runtime as python files loaded (execfile) at init of PLCObject with the same globals.
Because if this, same names used in previously different modules now colide.
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# This file is part of Beremiz, a Integrated Development Environment for
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# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
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#
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# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
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# Copyright (C) 2017: Andrey Skvortsov <andrej.skvortzov@gmail.com>
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#
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# See COPYING file for copyrights details.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
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from __future__ import absolute_import
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import wx
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from graphics.SFC_Objects import SFC_Step
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from dialogs.BlockPreviewDialog import BlockPreviewDialog
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# -------------------------------------------------------------------------------
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#                         Set SFC Step Parameters Dialog
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# -------------------------------------------------------------------------------
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class SFCStepDialog(BlockPreviewDialog):
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    """
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    Class that implements a dialog for defining parameters of a SFC step graphic
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    element
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    """
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    def __init__(self, parent, controller, tagname, initial=False):
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        """
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        Constructor
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        @param parent: Parent wx.Window of dialog for modal
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        @param controller: Reference to project controller
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        @param tagname: Tagname of project POU edited
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        @param initial: True if step is initial (default: False)
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        """
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        BlockPreviewDialog.__init__(self, parent, controller, tagname,
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                                    title=_('Edit Step'))
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        # Init common sizers
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        self._init_sizers(2, 0, 6, None, 2, 1)
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        # Create label for SFC step name
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        name_label = wx.StaticText(self, label=_('Name:'))
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        self.LeftGridSizer.AddWindow(name_label, flag=wx.GROW)
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        # Create text control for defining SFC step name
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        self.StepName = wx.TextCtrl(self)
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        self.Bind(wx.EVT_TEXT, self.OnNameChanged, self.StepName)
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        self.LeftGridSizer.AddWindow(self.StepName, flag=wx.GROW)
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        # Create label for SFC step connectors
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        connectors_label = wx.StaticText(self, label=_('Connectors:'))
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        self.LeftGridSizer.AddWindow(connectors_label, flag=wx.GROW)
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        # Create check boxes for defining connectors available on SFC step
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        self.ConnectorsCheckBox = {}
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        for name, label in [("input", _("Input")),
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                            ("output", _("Output")),
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                            ("action", _("Action"))]:
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            check_box = wx.CheckBox(self, label=label)
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            if name == "output" or (name == "input" and not initial):
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                check_box.SetValue(True)
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            self.Bind(wx.EVT_CHECKBOX, self.OnConnectorsChanged, check_box)
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            self.LeftGridSizer.AddWindow(check_box, flag=wx.GROW)
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            self.ConnectorsCheckBox[name] = check_box
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        # Add preview panel and associated label to sizers
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        self.RightGridSizer.AddWindow(self.PreviewLabel, flag=wx.GROW)
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        self.RightGridSizer.AddWindow(self.Preview, flag=wx.GROW)
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        # Add buttons sizer to sizers
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        self.MainSizer.AddSizer(
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            self.ButtonSizer, border=20,
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            flag=wx.ALIGN_RIGHT | wx.BOTTOM | wx.LEFT | wx.RIGHT)
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        # Save flag that indicates that step is initial
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        self.Initial = initial
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        # Set default name for step
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        self.StepName.ChangeValue(controller.GenerateNewName(
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            tagname, None, "Step%d", 0))
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        self.Fit()
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        # Step name text control is default control having keyboard focus
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        self.StepName.SetFocus()
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    def SetValues(self, values):
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        """
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        Set default block parameters
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        @param values: Block parameters values
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        """
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        # For each parameters defined, set corresponding control value
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        for name, value in values.items():
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            # Parameter is step name
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            if name == "name":
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                self.StepName.ChangeValue(value)
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            # Set value of other controls
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            else:
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                control = self.ConnectorsCheckBox.get(name, None)
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                if control is not None:
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                    control.SetValue(value)
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        # Refresh preview panel
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        self.RefreshPreview()
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    def GetValues(self):
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        """
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        Return step parameters defined in dialog
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        @return: {parameter_name: parameter_value,...}
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        """
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        values = {"name": self.StepName.GetValue()}
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        values.update({
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            name: control.IsChecked()
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            for name, control in self.ConnectorsCheckBox.iteritems()})
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        values["width"], values["height"] = self.Element.GetSize()
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        return values
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    def OnOK(self, event):
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        """
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        Called when dialog OK button is pressed
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        Test if step name defined is valid
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        @param event: wx.Event from OK button
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        """
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        message = None
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        # Get step name typed by user
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        step_name = self.StepName.GetValue()
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        # Test that a name have been defined
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        if step_name == "":
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            message = _("Form isn't complete. Name must be filled!")
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        # If an error have been identify, show error message dialog
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        if message is not None:
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            self.ShowErrorMessage(message)
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        # Test step name validity
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        elif self.TestElementName(step_name):
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            # Call BlockPreviewDialog function
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            BlockPreviewDialog.OnOK(self, event)
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    def OnConnectorsChanged(self, event):
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        """
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        Called when a step connector value changed
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        @param event: wx.CheckBoxEvent
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        """
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        self.RefreshPreview()
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        event.Skip()
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    def OnNameChanged(self, event):
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        """
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        Called when step name value changed
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        @param event: wx.TextEvent
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        """
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        self.RefreshPreview()
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        event.Skip()
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    def DrawPreview(self):
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        """
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        Refresh preview panel of graphic element
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        Override BlockPreviewDialog function
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        """
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        # Set graphic element displayed, creating a SFC step element
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        self.Element = SFC_Step(self.Preview,
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                                self.StepName.GetValue(),
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                                self.Initial)
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        # Update connectors of SFC step element according to check boxes value
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        for name, control in self.ConnectorsCheckBox.iteritems():
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            if control.IsChecked():
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                getattr(self.Element, "Add" + name.capitalize())()
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            else:
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                getattr(self.Element, "Remove" + name.capitalize())()
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        # Call BlockPreviewDialog function
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        BlockPreviewDialog.DrawPreview(self)