Fix bug with two or more wires connected to one input. Now only one wire can be connected to one input, except BOOLean signals in LD and SFC. If user trying to connect wire with already connected input, wire highlight will become red.
Signed-off-by: Andrey Skvortsov <andrej.skvortzov@gmail.com>
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#This file is part of PLCOpenEditor, a library implementing an IEC 61131-3 editor
#based on the plcopen standard.
#
#Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
#
#See COPYING file for copyrights details.
#
#This library is free software; you can redistribute it and/or
#modify it under the terms of the GNU General Public
#License as published by the Free Software Foundation; either
#version 2.1 of the License, or (at your option) any later version.
#
#This library is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
#General Public License for more details.
#
#You should have received a copy of the GNU General Public
#License along with this library; if not, write to the Free Software
#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import wx
from graphics.GraphicCommons import CONNECTOR, CONTINUATION
from graphics.FBD_Objects import FBD_Connector
from BlockPreviewDialog import BlockPreviewDialog
#-------------------------------------------------------------------------------
# Set Connection Parameters Dialog
#-------------------------------------------------------------------------------
"""
Class that implements a dialog for defining parameters of a connection graphic
element
"""
class ConnectionDialog(BlockPreviewDialog):
def __init__(self, parent, controller, tagname, apply_button=False):
"""
Constructor
@param parent: Parent wx.Window of dialog for modal
@param controller: Reference to project controller
@param tagname: Tagname of project POU edited
@param apply_button: Enable button for applying connector modification
to all connector having the same name in POU (default: False)
"""
BlockPreviewDialog.__init__(self, parent, controller, tagname,
size=wx.Size(350, 250), title=_('Connection Properties'))
# Init common sizers
self._init_sizers(2, 0, 5, None, 2, 1)
# Create label for connection type
type_label = wx.StaticText(self, label=_('Type:'))
self.LeftGridSizer.AddWindow(type_label, flag=wx.GROW)
# Create radio buttons for selecting connection type
self.TypeRadioButtons = {}
first = True
for type, label in [(CONNECTOR, _('Connector')),
(CONTINUATION, _('Continuation'))]:
radio_button = wx.RadioButton(self, label=label,
style=(wx.RB_GROUP if first else 0))
radio_button.SetValue(first)
self.Bind(wx.EVT_RADIOBUTTON, self.OnTypeChanged, radio_button)
self.LeftGridSizer.AddWindow(radio_button, flag=wx.GROW)
self.TypeRadioButtons[type] = radio_button
first = False
# Create label for connection name
name_label = wx.StaticText(self, label=_('Name:'))
self.LeftGridSizer.AddWindow(name_label, flag=wx.GROW)
# Create text control for defining connection name
self.ConnectionName = wx.TextCtrl(self)
self.Bind(wx.EVT_TEXT, self.OnNameChanged, self.ConnectionName)
self.LeftGridSizer.AddWindow(self.ConnectionName, flag=wx.GROW)
# Add preview panel and associated label to sizers
self.RightGridSizer.AddWindow(self.PreviewLabel, flag=wx.GROW)
self.RightGridSizer.AddWindow(self.Preview, flag=wx.GROW)
# Add buttons sizer to sizers
self.MainSizer.AddSizer(self.ButtonSizer, border=20,
flag=wx.ALIGN_RIGHT|wx.BOTTOM|wx.LEFT|wx.RIGHT)
# Add button for applying connection name modification to all connection
# of POU
if apply_button:
self.ApplyToAllButton = wx.Button(self, label=_("Propagate Name"))
self.ApplyToAllButton.SetToolTipString(
_("Apply name modification to all continuations with the same name"))
self.Bind(wx.EVT_BUTTON, self.OnApplyToAll, self.ApplyToAllButton)
self.ButtonSizer.AddWindow(self.ApplyToAllButton,
border=(3 if wx.Platform == '__WXMSW__' else 10),
flag=wx.LEFT)
else:
self.ConnectionName.ChangeValue(
controller.GenerateNewName(
tagname, None, "Connection%d", 0))
# Connector radio button is default control having keyboard focus
self.TypeRadioButtons[CONNECTOR].SetFocus()
def GetConnectionType(self):
"""
Return type selected for connection
@return: Type selected (CONNECTOR or CONTINUATION)
"""
return (CONNECTOR
if self.TypeRadioButtons[CONNECTOR].GetValue()
else CONTINUATION)
def SetValues(self, values):
"""
Set default connection parameters
@param values: Connection parameters values
"""
# For each parameters defined, set corresponding control value
for name, value in values.items():
# Parameter is connection type
if name == "type":
self.TypeRadioButtons[value].SetValue(True)
# Parameter is connection name
elif name == "name":
self.ConnectionName.SetValue(value)
# Refresh preview panel
self.RefreshPreview()
def GetValues(self):
"""
Return connection parameters defined in dialog
@return: {parameter_name: parameter_value,...}
"""
values = {
"type": self.GetConnectionType(),
"name": self.ConnectionName.GetValue()}
values["width"], values["height"] = self.Element.GetSize()
return values
def TestConnectionName(self):
"""
Test that connection name is valid
@return: True if connection name is valid
"""
message = None
# Get connection name typed by user
connection_name = self.ConnectionName.GetValue()
# Test that a name have been defined
if connection_name == "":
message = _("Form isn't complete. Name must be filled!")
# If an error have been identify, show error message dialog
if message is not None:
self.ShowErrorMessage(message)
# Test failed
return False
# Return result of element name test
return self.TestElementName(connection_name)
def OnOK(self, event):
"""
Called when dialog OK button is pressed
Test if connection name is valid
@param event: wx.Event from OK button
"""
# Close dialog if connection name is valid
if self.TestConnectionName():
self.EndModal(wx.ID_OK)
def OnApplyToAll(self, event):
"""
Called when Apply To All button is pressed
Test if connection name is valid
@param event: wx.Event from OK button
"""
# Close dialog if connection name is valid
if self.TestConnectionName():
self.EndModal(wx.ID_YESTOALL)
def OnTypeChanged(self, event):
"""
Called when connection type changed
@param event: wx.RadioButtonEvent
"""
self.RefreshPreview()
event.Skip()
def OnNameChanged(self, event):
"""
Called when connection name value changed
@param event: wx.TextEvent
"""
self.RefreshPreview()
event.Skip()
def RefreshPreview(self):
"""
Refresh preview panel of graphic element
Override BlockPreviewDialog function
"""
# Set graphic element displayed, creating a FBD connection element
self.Element = FBD_Connector(self.Preview,
self.GetConnectionType(),
self.ConnectionName.GetValue())
# Call BlockPreviewDialog function
BlockPreviewDialog.RefreshPreview(self)