controls/LocationCellEditor.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Fri, 25 Aug 2017 11:22:08 +0300
changeset 1789 492e2cd6157e
parent 1768 691083b5682a
child 1836 d42b6cf00fa6
permissions -rw-r--r--
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 <module>
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 <module>
from ProjectController import ProjectController, GetAddMenuItems,
MATIEC_ERROR_MODEL, ITEM_CONFNODE
File
"ProjectController.py", line 177, in <module>
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'
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# This file is part of Beremiz, a Integrated Development Environment for
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# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
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#
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# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
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#
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# See COPYING file for copyrights details.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
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import wx
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from dialogs.BrowseLocationsDialog import BrowseLocationsDialog
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class LocationCellControl(wx.PyControl):
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    '''
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    Custom cell editor control with a text box and a button that launches
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    the BrowseLocationsDialog.
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    '''
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    def __init__(self, parent):
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        wx.Control.__init__(self, parent)
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        main_sizer = wx.FlexGridSizer(cols=2, hgap=0, rows=1, vgap=0)
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        main_sizer.AddGrowableCol(0)
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        main_sizer.AddGrowableRow(0)
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        # create location text control
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        self.Location = wx.TextCtrl(self, size=wx.Size(0, -1),
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                                    style=wx.TE_PROCESS_ENTER)
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        self.Location.Bind(wx.EVT_KEY_DOWN, self.OnLocationChar)
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        main_sizer.AddWindow(self.Location, flag=wx.GROW)
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        # create browse button
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        self.BrowseButton = wx.Button(self, label='...', size=wx.Size(30, -1))
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        self.BrowseButton.Bind(wx.EVT_BUTTON, self.OnBrowseButtonClick)
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        main_sizer.AddWindow(self.BrowseButton, flag=wx.GROW)
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        self.Bind(wx.EVT_SIZE, self.OnSize)
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        self.SetSizer(main_sizer)
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        self.Controller = None
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        self.VarType = None
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        self.Default = False
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    def __del__(self):
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        self.Controller = None
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    def SetController(self, controller):
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        self.Controller = controller
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    def SetVarType(self, vartype):
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        self.VarType = vartype
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    def GetVarType(self):
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        return self.VarType
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    def SetValue(self, value):
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        self.Default = value
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        self.Location.SetValue(value)
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    def GetValue(self):
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        return self.Location.GetValue()
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    def OnSize(self, event):
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        self.Layout()
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    def OnBrowseButtonClick(self, event):
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        # pop up the location browser dialog
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        dialog = BrowseLocationsDialog(self, self.VarType, self.Controller)
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        if dialog.ShowModal() == wx.ID_OK:
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            infos = dialog.GetValues()
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        else:
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            infos = None
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        dialog.Destroy()
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        if infos is not None:
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            location = infos["location"]
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            # set the location
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            if not infos["location"].startswith("%"):
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                dialog = wx.SingleChoiceDialog(
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                    self,
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                    _("Select a variable class:"),
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                    _("Variable class"),
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                    [_("Input"), _("Output"), _("Memory")],
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                    wx.DEFAULT_DIALOG_STYLE | wx.OK | wx.CANCEL)
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                if dialog.ShowModal() == wx.ID_OK:
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                    selected = dialog.GetSelection()
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                else:
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                    selected = None
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                dialog.Destroy()
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                if selected is None:
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                    self.Location.SetFocus()
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                    return
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                if selected == 0:
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                    location = "%I" + location
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                elif selected == 1:
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                    location = "%Q" + location
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                else:
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                    location = "%M" + location
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            self.Location.SetValue(location)
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            self.VarType = infos["IEC_type"]
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        self.Location.SetFocus()
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    def OnLocationChar(self, event):
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        keycode = event.GetKeyCode()
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        if keycode in [wx.WXK_RETURN, wx.WXK_TAB]:
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            self.Parent.Parent.ProcessEvent(event)
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        elif keycode == wx.WXK_ESCAPE:
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            self.Location.SetValue(self.Default)
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            self.Parent.Parent.CloseEditControl()
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        else:
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            event.Skip()
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    def SetInsertionPoint(self, i):
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        self.Location.SetInsertionPoint(i)
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    def SetFocus(self):
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        self.Location.SetFocus()
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class LocationCellEditor(wx.grid.PyGridCellEditor):
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    '''
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    Grid cell editor that uses LocationCellControl to display a browse button.
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    '''
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    def __init__(self, table, controller):
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        wx.grid.PyGridCellEditor.__init__(self)
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        self.Table = table
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        self.Controller = controller
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    def __del__(self):
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        self.CellControl = None
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        self.Controller = None
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    def Create(self, parent, id, evt_handler):
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        self.CellControl = LocationCellControl(parent)
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        self.SetControl(self.CellControl)
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        if evt_handler:
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            self.CellControl.PushEventHandler(evt_handler)
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    def BeginEdit(self, row, col, grid):
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        self.CellControl.Enable()
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        self.CellControl.SetController(self.Controller)
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        self.CellControl.SetValue(self.Table.GetValueByName(row, 'Location'))
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        if isinstance(self.CellControl, LocationCellControl):
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            self.CellControl.SetVarType(self.Table.GetValueByName(row, 'Type'))
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        self.CellControl.SetFocus()
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    def EndEditInternal(self, row, col, grid, old_loc):
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        loc = self.CellControl.GetValue()
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        changed = loc != old_loc
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        if changed:
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            self.Table.SetValueByName(row, 'Location', loc)
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            self.Table.SetValueByName(row, 'Type', self.CellControl.GetVarType())
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        self.CellControl.Disable()
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        return changed
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    if wx.VERSION >= (3, 0, 0):
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        def EndEdit(self, row, col, grid, oldval):
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            return self.EndEditInternal(row, col, grid, oldval)
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    else:
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        def EndEdit(self, row, col, grid):
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            old_loc = self.Table.GetValueByName(row, 'Location')
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            return self.EndEditInternal(row, col, grid, old_loc)
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    def SetSize(self, rect):
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        self.CellControl.SetDimensions(rect.x + 1, rect.y,
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                                       rect.width, rect.height,
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                                       wx.SIZE_ALLOW_MINUS_ONE)
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    def Clone(self):
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        return LocationCellEditor(self.Table, self.Controller)