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 controls.CustomToolTip import CustomToolTip, TOOLTIP_WAIT_PERIOD
#-------------------------------------------------------------------------------
# Tool Tip Producer class
#-------------------------------------------------------------------------------
"""
Class that implements an element that generate Tool Tip
"""
class ToolTipProducer:
def __init__(self, parent):
"""
Constructor
@param parent: Parent Viewer
"""
self.Parent = parent
self.ToolTip = None
self.ToolTipPos = None
# Timer for firing Tool tip display
self.ToolTipTimer = wx.Timer(self.Parent, -1)
self.Parent.Bind(wx.EVT_TIMER,
self.OnToolTipTimer,
self.ToolTipTimer)
def __del__(self):
"""
Destructor
"""
self.DestroyToolTip()
def OnToolTipTimer(self, event):
"""
Callback for Tool Tip firing timer Event
@param event: Tool tip text
"""
# Get Tool Tip text
value = self.GetToolTipValue()
if value is not None and self.ToolTipPos is not None:
# Create Tool Tip
self.ToolTip = CustomToolTip(self.Parent, value)
self.ToolTip.SetToolTipPosition(self.ToolTipPos)
self.ToolTip.Show()
def GetToolTipValue(self):
"""
Return tool tip text
Have to be overridden by inherited classes
@return: Tool tip text (None if not overridden)
"""
return None
def DisplayToolTip(self, pos):
"""
Display Tool tip
@param pos: Tool tip position
"""
# Destroy current displayed Tool tip
self.DestroyToolTip()
# Save Tool Tip position
self.ToolTipPos = pos
# Start Tool tip firing timer
self.ToolTipTimer.Start(
int(TOOLTIP_WAIT_PERIOD * 1000),
oneShot=True)
def SetToolTipText(self, text):
"""
Set current Tool tip text
@param text: Tool tip Text
"""
if self.ToolTip is not None:
self.ToolTip.SetTip(text)
def DestroyToolTip(self):
"""
Destroy current displayed Tool Tip
"""
# Stop Tool tip firing timer
self.ToolTipTimer.Stop()
self.ToolTipPos = None
# Destroy Tool Tip
if self.ToolTip is not None:
self.ToolTip.Destroy()
self.ToolTip = None