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
#
# 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
import wx.grid
class CustomGrid(wx.grid.Grid):
def __init__(self, *args, **kwargs):
wx.grid.Grid.__init__(self, *args, **kwargs)
self.Editable = True
self.AddButton = None
self.DeleteButton = None
self.UpButton = None
self.DownButton = None
self.SetFont(wx.Font(12, wx.DEFAULT, wx.NORMAL, wx.NORMAL, False, 'Sans'))
self.SetLabelFont(wx.Font(10, wx.DEFAULT, wx.NORMAL, wx.NORMAL, False, 'Sans'))
self.SetSelectionBackground(wx.WHITE)
self.SetSelectionForeground(wx.BLACK)
self.DisableDragRowSize()
self.Bind(wx.grid.EVT_GRID_SELECT_CELL, self.OnSelectCell)
self.Bind(wx.grid.EVT_GRID_EDITOR_HIDDEN, self.OnEditorHidden)
self.Bind(wx.EVT_KEY_DOWN, self.OnKeyDown)
def SetFocus(self):
if self:
wx.grid.Grid.SetFocus(self)
def SetDefaultValue(self, default_value):
self.DefaultValue = default_value
def SetEditable(self, editable=True):
self.Editable = editable
self.RefreshButtons()
def SetButtons(self, buttons):
for name in ["Add", "Delete", "Up", "Down"]:
button = buttons.get(name, None)
setattr(self, "%sButton" % name, button)
if button is not None:
button.Bind(wx.EVT_BUTTON, getattr(self, "On%sButton" % name))
def RefreshButtons(self):
if self:
rows = self.Table.GetNumberRows()
row = self.GetGridCursorRow()
if self.AddButton is not None:
self.AddButton.Enable(self.Editable)
if self.DeleteButton is not None:
self.DeleteButton.Enable(self.Editable and rows > 0)
if self.UpButton is not None:
self.UpButton.Enable(self.Editable and row > 0)
if self.DownButton is not None:
self.DownButton.Enable(self.Editable and 0 <= row < rows - 1)
def CloseEditControl(self):
row, col = self.GetGridCursorRow(), self.GetGridCursorCol()
if row != -1 and col != -1:
self.SetGridCursor(row, col)
def AddRow(self):
self.CloseEditControl()
new_row = self.GetGridCursorRow() + 1
col = max(self.GetGridCursorCol(), 0)
if getattr(self, "_AddRow", None) is not None:
new_row = self._AddRow(new_row)
else:
self.Table.InsertRow(new_row, self.DefaultValue.copy())
self.Table.ResetView(self)
if new_row is not None:
self.SetSelectedCell(new_row, col)
def DeleteRow(self):
self.CloseEditControl()
row = self.GetGridCursorRow()
if row >= 0:
col = self.GetGridCursorCol()
if getattr(self, "_DeleteRow", None) is not None:
self._DeleteRow(row)
else:
self.Table.RemoveRow(row)
self.Table.ResetView(self)
if self.Table.GetNumberRows() > 0:
self.SetSelectedCell(min(row, self.Table.GetNumberRows() - 1), col)
def MoveRow(self, row, move):
self.CloseEditControl()
col = self.GetGridCursorCol()
if getattr(self, "_MoveRow", None) is not None:
new_row = self._MoveRow(row, move)
else:
new_row = self.Table.MoveRow(row, move)
if new_row != row:
self.Table.ResetView(self)
if new_row != row:
self.SetSelectedCell(new_row, col)
def SetSelectedCell(self, row, col):
self.SetGridCursor(row, col)
self.MakeCellVisible(row, col)
self.RefreshButtons()
def OnAddButton(self, event):
self.AddRow()
self.SetFocus()
event.Skip()
def OnDeleteButton(self, event):
self.DeleteRow()
self.SetFocus()
event.Skip()
def OnUpButton(self, event):
self.MoveRow(self.GetGridCursorRow(), -1)
self.SetFocus()
event.Skip()
def OnDownButton(self, event):
self.MoveRow(self.GetGridCursorRow(), 1)
self.SetFocus()
event.Skip()
def OnSelectCell(self, event):
wx.CallAfter(self.RefreshButtons)
event.Skip()
def OnEditorHidden(self, event):
wx.CallAfter(self.SetFocus)
event.Skip()
def OnKeyDown(self, event):
key_handled = False
keycode = event.GetKeyCode()
if keycode == wx.WXK_TAB:
row = self.GetGridCursorRow()
col = self.GetGridCursorCol()
if event.ShiftDown():
if row < 0 or col == 0:
self.Navigate(wx.NavigationKeyEvent.IsBackward)
key_handled = True
elif row < 0 or col == self.Table.GetNumberCols() - 1:
self.Navigate(wx.NavigationKeyEvent.IsForward)
key_handled = True
elif keycode in (wx.WXK_ADD, wx.WXK_NUMPAD_ADD) and self.Editable:
self.AddRow()
key_handled = True
elif keycode in (wx.WXK_DELETE, wx.WXK_NUMPAD_DELETE) and self.Editable:
self.DeleteRow()
key_handled = True
elif keycode == wx.WXK_UP and event.ShiftDown() and self.Editable:
self.MoveRow(self.GetGridCursorRow(), -1)
key_handled = True
elif keycode == wx.WXK_DOWN and event.ShiftDown() and self.Editable:
self.MoveRow(self.GetGridCursorRow(), 1)
key_handled = True
if not key_handled:
event.Skip()