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>
# -*- 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 SELECTION_DIVERGENCE, \
SELECTION_CONVERGENCE, SIMULTANEOUS_DIVERGENCE, SIMULTANEOUS_CONVERGENCE
from graphics.SFC_Objects import SFC_Divergence
from BlockPreviewDialog import BlockPreviewDialog
#-------------------------------------------------------------------------------
# Create New Divergence Dialog
#-------------------------------------------------------------------------------
"""
Class that implements a dialog for defining parameters for creating a new
divergence graphic element
"""
class SFCDivergenceDialog(BlockPreviewDialog):
def __init__(self, parent, controller, tagname):
"""
Constructor
@param parent: Parent wx.Window of dialog for modal
@param controller: Reference to project controller
@param tagname: Tagname of project POU edited
"""
BlockPreviewDialog.__init__(self, parent, controller, tagname,
size=wx.Size(500, 300),
title=_('Create a new divergence or convergence'))
# Init common sizers
self._init_sizers(2, 0, 7, None, 2, 1)
# Create label for divergence type
type_label = wx.StaticText(self, label=_('Type:'))
self.LeftGridSizer.AddWindow(type_label, flag=wx.GROW)
# Create radio buttons for selecting divergence type
self.TypeRadioButtons = {}
first = True
for type, label in [
(SELECTION_DIVERGENCE, _('Selection Divergence')),
(SELECTION_CONVERGENCE, _('Selection Convergence')),
(SIMULTANEOUS_DIVERGENCE, _('Simultaneous Divergence')),
(SIMULTANEOUS_CONVERGENCE, _('Simultaneous Convergence'))]:
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 number of divergence sequences
sequences_label = wx.StaticText(self,
label=_('Number of sequences:'))
self.LeftGridSizer.AddWindow(sequences_label, flag=wx.GROW)
# Create spin control for defining number of divergence sequences
self.Sequences = wx.SpinCtrl(self, min=2, max=20)
self.Bind(wx.EVT_SPINCTRL, self.OnSequencesChanged, self.Sequences)
self.LeftGridSizer.AddWindow(self.Sequences, 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)
# Selection divergence radio button is default control having keyboard
# focus
self.TypeRadioButtons[SELECTION_DIVERGENCE].SetFocus()
def GetMinElementSize(self):
"""
Get minimal graphic element size
@return: Tuple containing minimal size (width, height) or None if no
element defined
"""
return self.Element.GetMinSize(True)
def GetDivergenceType(self):
"""
Return type selected for SFC divergence
@return: Type selected (None if not found)
"""
# Go through radio buttons and return type associated to the one that
# is selected
for type, control in self.TypeRadioButtons.iteritems():
if control.GetValue():
return type
return None
def GetValues(self):
"""
Set default SFC divergence parameters
@param values: Divergence parameters values
"""
return {"type": self.GetDivergenceType(),
"number": self.Sequences.GetValue()}
def OnTypeChanged(self, event):
"""
Called when SFC divergence type changed
@param event: wx.RadioButtonEvent
"""
self.RefreshPreview()
event.Skip()
def OnSequencesChanged(self, event):
"""
Called when SFC divergence number of sequences changed
@param event: wx.SpinEvent
"""
self.RefreshPreview()
event.Skip()
def RefreshPreview(self):
"""
Refresh preview panel of graphic element
Override BlockPreviewDialog function
"""
# Set graphic element displayed, creating a SFC divergence
self.Element = SFC_Divergence(self.Preview,
self.GetDivergenceType(),
self.Sequences.GetValue())
# Call BlockPreviewDialog function
BlockPreviewDialog.RefreshPreview(self)