beremiz

fix problem when Beremiz is running without matiec installed

2017-08-25, Andrey Skvortsov
492e2cd6157e
fix problem when Beremiz is running without matiec installed

set matiec settings only once on first use of ProjectController class and give
user-friendly message on compilation about missing matiec
installation.


Traceback (most recent call last):
File "Beremiz.py", line 197, in
beremiz.Start()
File "Beremiz.py", line 192, in Start
self.CreateApplication()
File "Beremiz.py", line 130, in CreateApplication
self.BackgroundInitialization()
File "Beremiz.py", line 137, in BackgroundInitialization
self.ImportModules()
File "Beremiz.py", line 176, in ImportModules
import BeremizIDE
File
"BeremizIDE.py", line 76, in
from ProjectController import ProjectController, GetAddMenuItems,
MATIEC_ERROR_MODEL, ITEM_CONFNODE
File
"ProjectController.py", line 177, in
iec2c_cfg = Iec2CSettings()
File
"ProjectController.py", line 101, in __init__
self.ieclib_c_path = self.findLibCPath()
File
"ProjectController.py", line 135, in findLibCPath
os.path.join(self.ieclib_path, "C"),
File "/usr/lib/python2.7/posixpath.py", line 70, in join
elif path == '' or path.endswith('/'):
AttributeError: 'NoneType' object has no attribute 'endswith'
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# This file is part of Beremiz, a Integrated Development Environment for
# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
#
# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
# Copyright (C) 2017: Andrey Skvortsov <andrej.skvortzov@gmail.com>
#
# See COPYING file for copyrights details.
#
# This program 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
# of the License, or (at your option) any later version.
#
# This program 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 program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
import wx
from graphics.GraphicCommons import LEFTRAIL, RIGHTRAIL, LD_LINE_SIZE
from graphics.LD_Objects import LD_PowerRail
from BlockPreviewDialog import BlockPreviewDialog
# -------------------------------------------------------------------------------
# Set Ladder Power Rail Parameters Dialog
# -------------------------------------------------------------------------------
class LDPowerRailDialog(BlockPreviewDialog):
"""
Class that implements a dialog for defining parameters of a power rail graphic
element
"""
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,
title=_('Power Rail 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 power rail type
self.TypeRadioButtons = {}
first = True
for type, label in [(LEFTRAIL, _('Left PowerRail')),
(RIGHTRAIL, _('Right PowerRail'))]:
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 power rail pin number
pin_number_label = wx.StaticText(self, label=_('Pin number:'))
self.LeftGridSizer.AddWindow(pin_number_label, flag=wx.GROW)
# Create spin control for defining power rail pin number
self.PinNumber = wx.SpinCtrl(self, min=1, max=50,
style=wx.SP_ARROW_KEYS)
self.PinNumber.SetValue(1)
self.Bind(wx.EVT_SPINCTRL, self.OnPinNumberChanged, self.PinNumber)
self.LeftGridSizer.AddWindow(self.PinNumber, 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)
self.Fit()
# Left Power Rail radio button is default control having keyboard focus
self.TypeRadioButtons[LEFTRAIL].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 GetPowerRailType(self):
"""
Return type selected for power rail
@return: Type selected (LEFTRAIL or RIGHTRAIL)
"""
return (LEFTRAIL
if self.TypeRadioButtons[LEFTRAIL].GetValue()
else RIGHTRAIL)
def SetValues(self, values):
"""
Set default power rail parameters
@param values: Power rail parameters values
"""
# For each parameters defined, set corresponding control value
for name, value in values.items():
# Parameter is power rail type
if name == "type":
self.TypeRadioButtons[value].SetValue(True)
# Parameter is power rail pin number
elif name == "pin_number":
self.PinNumber.SetValue(value)
def GetValues(self):
"""
Return power rail parameters defined in dialog
@return: {parameter_name: parameter_value,...}
"""
values = {
"type": self.GetPowerRailType(),
"pin_number": self.PinNumber.GetValue()}
values["width"], values["height"] = self.Element.GetSize()
return values
def OnTypeChanged(self, event):
"""
Called when power rail type changed
@param event: wx.RadioButtonEvent
"""
self.RefreshPreview()
event.Skip()
def OnPinNumberChanged(self, event):
"""
Called when power rail pin number value 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 power rail element
self.Element = LD_PowerRail(self.Preview,
self.GetPowerRailType(),
connectors=self.PinNumber.GetValue())
# Call BlockPreviewDialog function
BlockPreviewDialog.RefreshPreview(self)