HGKeeper

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.

# 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 re

import wx

# -------------------------------------------------------------------------------

# Helpers

# -------------------------------------------------------------------------------

MICROSECONDS = 0.001

MILLISECONDS = 1

SECOND = 1000

MINUTE = 60 * SECOND

HOUR = 60 * MINUTE

DAY = 24 * HOUR

IEC_TIME_MODEL = re.compile("(?:T|TIME)#(-)?(?:(%(float)s)D_?)?(?:(%(float)s)H_?)?(?:(%(float)s)M(?!S)_?)?(?:(%(float)s)S_?)?(?:(%(float)s)MS)?$" % {"float": "[0-9]+(?:\.[0-9]+)?"})

CONTROLS = [

("Days", _('Days:')),

("Hours", _('Hours:')),

("Minutes", _('Minutes:')),

("Seconds", _('Seconds:')),

("Milliseconds", _('Milliseconds:')),

("Microseconds", _('Microseconds:')),

]

# -------------------------------------------------------------------------------

# Edit Duration Value Dialog

# -------------------------------------------------------------------------------

class DurationEditorDialog(wx.Dialog):

def __init__(self, parent):

wx.Dialog.__init__(self, parent, title=_('Edit Duration'))

main_sizer = wx.FlexGridSizer(cols=1, hgap=0, rows=2, vgap=10)

main_sizer.AddGrowableCol(0)

main_sizer.AddGrowableRow(0)

controls_sizer = wx.FlexGridSizer(cols=len(CONTROLS), hgap=10, rows=2, vgap=10)

main_sizer.AddSizer(controls_sizer, border=20,

flag=wx.TOP | wx.LEFT | wx.RIGHT | wx.GROW)

controls = []

for i, (name, label) in enumerate(CONTROLS):

controls_sizer.AddGrowableCol(i)

st = wx.StaticText(self, label=label)

txtctrl = wx.TextCtrl(self, value='0', style=wx.TE_PROCESS_ENTER)

self.Bind(wx.EVT_TEXT_ENTER,

self.GetControlValueTestFunction(txtctrl),

txtctrl)

setattr(self, name, txtctrl)

controls.append((st, txtctrl))

for st, txtctrl in controls:

controls_sizer.AddWindow(st, flag=wx.GROW)

for st, txtctrl in controls:

controls_sizer.AddWindow(txtctrl, flag=wx.GROW)

button_sizer = self.CreateButtonSizer(wx.OK | wx.CANCEL | wx.CENTRE)

self.Bind(wx.EVT_BUTTON, self.OnOK, button_sizer.GetAffirmativeButton())

main_sizer.AddSizer(button_sizer, border=20,

flag=wx.ALIGN_RIGHT | wx.BOTTOM | wx.LEFT | wx.RIGHT)

self.SetSizer(main_sizer)

self.Fit()

self.Days.SetFocus()

def SetDuration(self, value):

result = IEC_TIME_MODEL.match(value.upper())

if result is not None:

values = result.groups()

for control, index in [(self.Days, 1), (self.Hours, 2),

(self.Minutes, 3), (self.Seconds, 4)]:

value = values[index]

if value is not None:

control.SetValue(value)

else:

control.SetValue("0")

milliseconds = values[5]

if milliseconds is not None:

self.Milliseconds.SetValue("%d" % int(float(milliseconds)))

self.Microseconds.SetValue("%.3f" % ((float(milliseconds) % MILLISECONDS) / MICROSECONDS))

else:

self.Milliseconds.SetValue("0")

self.Microseconds.SetValue("0")

def GetControlValueTestFunction(self, control):

def OnValueChanged(event):

try:

value = float(control.GetValue())

except ValueError, e:

message = wx.MessageDialog(self, _("Invalid value!\nYou must fill a numeric value."), _("Error"), wx.OK | wx.ICON_ERROR)

message.ShowModal()

message.Destroy()

event.Skip()

self.OnCloseDialog()

return OnValueChanged

def GetDuration(self):

milliseconds = 0

for control, factor in [(self.Days, DAY), (self.Hours, HOUR),

(self.Minutes, MINUTE), (self.Seconds, SECOND),

(self.Milliseconds, MILLISECONDS), (self.Microseconds, MICROSECONDS)]:

milliseconds += float(control.GetValue()) * factor

not_null = False

duration = "T#"

for value, format in [((int(milliseconds) / DAY), "%dd"),

((int(milliseconds) % DAY) / HOUR, "%dh"),

((int(milliseconds) % HOUR) / MINUTE, "%dm"),

((int(milliseconds) % MINUTE) / SECOND, "%ds")]:

if value > 0 or not_null:

duration += format % value

not_null = True

duration += "%gms" % (milliseconds % SECOND)

return duration

def OnOK(self, event):

self.OnCloseDialog()

def OnCloseDialog(self):

errors = []

for control, name in [(self.Days, _("days")), (self.Hours, _("hours")),

(self.Minutes, _("minutes")), (self.Seconds, _("seconds")),

(self.Milliseconds, _("milliseconds"))]:

try:

value = float(control.GetValue())

except ValueError, e:

errors.append(name)

if len(errors) > 0:

if len(errors) == 1:

message = _("Field %s hasn't a valid value!") % errors[0]

else:

message = _("Fields %s haven't a valid value!") % ",".join(errors)

dialog = wx.MessageDialog(self, message, _("Error"), wx.OK | wx.ICON_ERROR)

dialog.ShowModal()

dialog.Destroy()

else:

self.EndModal(wx.ID_OK)