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#!/usr/bin/env python

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# -*- coding: utf-8 -*-

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#This file is part of PLCOpenEditor, a library implementing an IEC 61131-3 editor

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#based on the plcopen standard. 

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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 library is free software; you can redistribute it and/or

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#modify it under the terms of the GNU General Public

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#License as published by the Free Software Foundation; either

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#version 2.1 of the License, or (at your option) any later version.

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#

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#This library 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 GNU

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#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

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#License along with this library; if not, write to the Free Software

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#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

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import os

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import wx, wx.grid

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from types import TupleType, StringType, UnicodeType

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from plcopen.structures import LOCATIONDATATYPES, TestIdentifier, IEC_KEYWORDS

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from graphics.GraphicCommons import REFRESH_HIGHLIGHT_PERIOD

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from dialogs.ArrayTypeDialog import ArrayTypeDialog

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from CustomGrid import CustomGrid

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from CustomTable import CustomTable

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from LocationCellEditor import LocationCellEditor

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# Compatibility function for wx versions < 2.6

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def AppendMenu(parent, help, id, kind, text):

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    if wx.VERSION >= (2, 6, 0):

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        parent.Append(help=help, id=id, kind=kind, text=text)

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    else:

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        parent.Append(helpString=help, id=id, kind=kind, item=text)

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[TITLE, TOOLBAR, FILEMENU, EDITMENU, DISPLAYMENU, TYPESTREE, 

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 INSTANCESTREE, LIBRARYTREE, SCALING

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] = range(9)

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

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#                            Variables Editor Panel

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

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def GetVariableTableColnames(location):

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    _ = lambda x : x

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    if location:

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    	return ["#", _("Name"), _("Class"), _("Type"), _("Location"), _("Initial Value"), _("Option"), _("Documentation")]

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    return ["#", _("Name"), _("Class"), _("Type"), _("Initial Value"), _("Option"), _("Documentation")]

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def GetOptions(constant=True, retain=True, non_retain=True):

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    _ = lambda x : x

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    options = [""]

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    if constant:

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        options.append(_("Constant"))

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    if retain:

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        options.append(_("Retain"))

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    if non_retain:

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        options.append(_("Non-Retain"))

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    return options

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OPTIONS_DICT = dict([(_(option), option) for option in GetOptions()])

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def GetFilterChoiceTransfer():

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    _ = lambda x : x

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    return {_("All"): _("All"), _("Interface"): _("Interface"), 

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            _("   Input"): _("Input"), _("   Output"): _("Output"), _("   InOut"): _("InOut"), 

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            _("   External"): _("External"), _("Variables"): _("Variables"), _("   Local"): _("Local"),

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            _("   Temp"): _("Temp"), _("Global"): _("Global")}#, _("Access") : _("Access")}

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VARIABLE_CHOICES_DICT = dict([(_(_class), _class) for _class in GetFilterChoiceTransfer().iterkeys()])

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VARIABLE_CLASSES_DICT = dict([(_(_class), _class) for _class in GetFilterChoiceTransfer().itervalues()])

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CheckOptionForClass = {"Local": lambda x: x,

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                       "Temp": lambda x: "",

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                       "Input": lambda x: {"Retain": "Retain", "Non-Retain": "Non-Retain"}.get(x, ""),

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                       "InOut": lambda x: "",

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                       "Output": lambda x: {"Retain": "Retain", "Non-Retain": "Non-Retain"}.get(x, ""),

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                       "Global": lambda x: {"Constant": "Constant", "Retain": "Retain"}.get(x, ""),

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                       "External": lambda x: {"Constant": "Constant"}.get(x, "")

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                      }

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class VariableTable(CustomTable):

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    """

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    A custom wx.grid.Grid Table using user supplied data

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    """

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    def __init__(self, parent, data, colnames):

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        # The base class must be initialized *first*

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        CustomTable.__init__(self, parent, data, colnames)

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        self.old_value = None

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    def GetValue(self, row, col):

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        if row < self.GetNumberRows():

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            if col == 0:

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                return self.data[row]["Number"]

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            colname = self.GetColLabelValue(col, False)

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            value = self.data[row].get(colname, "")

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            if colname == "Type" and isinstance(value, TupleType):

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                if value[0] == "array":

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                    return "ARRAY [%s] OF %s" % (",".join(map(lambda x : "..".join(x), value[2])), value[1])

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            if not isinstance(value, (StringType, UnicodeType)):

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                value = str(value)

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            if colname in ["Class", "Option"]:

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                return _(value)

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            return value

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    def SetValue(self, row, col, value):

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        if col < len(self.colnames):

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            colname = self.GetColLabelValue(col, False)

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            if colname == "Name":

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                self.old_value = self.data[row][colname]

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            elif colname == "Class":

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                value = VARIABLE_CLASSES_DICT[value]

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                self.SetValueByName(row, "Option", CheckOptionForClass[value](self.GetValueByName(row, "Option")))

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                if value == "External":

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                    self.SetValueByName(row, "Initial Value", "")

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            elif colname == "Option":

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                value = OPTIONS_DICT[value]

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            self.data[row][colname] = value

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    def GetOldValue(self):

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        return self.old_value

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    def _updateColAttrs(self, grid):

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        """

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        wx.grid.Grid -> update the column attributes to add the

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        appropriate renderer given the column name.

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        Otherwise default to the default renderer.

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        """

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        for row in range(self.GetNumberRows()):

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            var_class = self.GetValueByName(row, "Class")

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            var_type = self.GetValueByName(row, "Type")

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            row_highlights = self.Highlights.get(row, {})

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            for col in range(self.GetNumberCols()):

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                editor = None

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                renderer = None

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                colname = self.GetColLabelValue(col, False)

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                if self.Parent.Debug:

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                    grid.SetReadOnly(row, col, True)

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                else:

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                    if colname == "Option":

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                        options = GetOptions(constant = var_class in ["Local", "External", "Global"],

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                                             retain = self.Parent.ElementType != "function" and var_class in ["Local", "Input", "Output", "Global"],

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                                             non_retain = self.Parent.ElementType != "function" and var_class in ["Local", "Input", "Output"])

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                        if len(options) > 1:

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                            editor = wx.grid.GridCellChoiceEditor()

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                            editor.SetParameters(",".join(map(_, options)))

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                        else:

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                            grid.SetReadOnly(row, col, True)

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                    elif col != 0 and self.GetValueByName(row, "Edit"):

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                        grid.SetReadOnly(row, col, False)

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                        if colname == "Name":

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                            if self.Parent.PouIsUsed and var_class in ["Input", "Output", "InOut"]:

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                                grid.SetReadOnly(row, col, True)

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                            else:

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                                editor = wx.grid.GridCellTextEditor()

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                                renderer = wx.grid.GridCellStringRenderer()

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                        elif colname == "Initial Value":

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                            if var_class != "External":

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                                if self.Parent.Controler.IsEnumeratedType(var_type):

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                                    editor = wx.grid.GridCellChoiceEditor()

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                                    editor.SetParameters(",".join(self.Parent.Controler.GetEnumeratedDataValues(var_type)))

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                                else:

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                                    editor = wx.grid.GridCellTextEditor()

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                                renderer = wx.grid.GridCellStringRenderer()

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                            else:

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                                grid.SetReadOnly(row, col, True)

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                        elif colname == "Location":

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                            if var_class in ["Local", "Global"] and self.Parent.Controler.IsLocatableType(var_type):

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                                editor = LocationCellEditor(self, self.Parent.Controler)

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                                renderer = wx.grid.GridCellStringRenderer()

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                            else:

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                                grid.SetReadOnly(row, col, True)

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                        elif colname == "Class":

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                            if len(self.Parent.ClassList) == 1 or self.Parent.PouIsUsed and var_class in ["Input", "Output", "InOut"]:

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                                grid.SetReadOnly(row, col, True)

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                            else:

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                                editor = wx.grid.GridCellChoiceEditor()

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                                excluded = []

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                                if self.Parent.PouIsUsed:

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                                    excluded.extend(["Input","Output","InOut"])

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                                if self.Parent.IsFunctionBlockType(var_type):

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                                    excluded.extend(["Local","Temp"])

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                                editor.SetParameters(",".join([_(choice) for choice in self.Parent.ClassList if choice not in excluded]))

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                    elif colname != "Documentation":

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                        grid.SetReadOnly(row, col, True)

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                grid.SetCellEditor(row, col, editor)

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                grid.SetCellRenderer(row, col, renderer)

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                highlight_colours = row_highlights.get(colname.lower(), [(wx.WHITE, wx.BLACK)])[-1]

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                grid.SetCellBackgroundColour(row, col, highlight_colours[0])

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                grid.SetCellTextColour(row, col, highlight_colours[1])

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            self.ResizeRow(grid, row)

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class VariableDropTarget(wx.TextDropTarget):

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    '''

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    This allows dragging a variable location from somewhere to the Location

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    column of a variable row.

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    The drag source should be a TextDataObject containing a Python tuple like:

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        ('%ID0.0.0', 'location', 'REAL')

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    c_ext/CFileEditor.py has an example of this (you can drag a C extension

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    variable to the Location column of the variable panel).

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    '''

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    def __init__(self, parent):

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        wx.TextDropTarget.__init__(self)

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        self.ParentWindow = parent

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    def OnDropText(self, x, y, data):

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        x, y = self.ParentWindow.VariablesGrid.CalcUnscrolledPosition(x, y)

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        col = self.ParentWindow.VariablesGrid.XToCol(x)

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        row = self.ParentWindow.VariablesGrid.YToRow(y - self.ParentWindow.VariablesGrid.GetColLabelSize())

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        if col != wx.NOT_FOUND and row != wx.NOT_FOUND:

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            if self.ParentWindow.Table.GetColLabelValue(col, False) != "Location":

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                return

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            message = None

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            if not self.ParentWindow.Table.GetValueByName(row, "Edit"):

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                message = _("Can't give a location to a function block instance")

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            elif self.ParentWindow.Table.GetValueByName(row, "Class") not in ["Local", "Global"]:

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                message = _("Can only give a location to local or global variables")

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            else:

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                try:

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                    values = eval(data)    

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                except:

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                    message = _("Invalid value \"%s\" for location")%data

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                    values = None

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                if not isinstance(values, TupleType):

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                    message = _("Invalid value \"%s\" for location")%data

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                    values = None

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                if values is not None and values[1] == "location":

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                    location = values[0]

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                    variable_type = self.ParentWindow.Table.GetValueByName(row, "Type")

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                    base_type = self.ParentWindow.Controler.GetBaseType(variable_type)

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                    message = None

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                    if location.startswith("%"):

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                        if base_type != values[2]:

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                            message = _("Incompatible data types between \"%s\" and \"%s\"")%(values[2], variable_type)

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                        else:

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                            self.ParentWindow.Table.SetValue(row, col, location)

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                            self.ParentWindow.Table.ResetView(self.ParentWindow.VariablesGrid)

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                            self.ParentWindow.SaveValues()

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                    else:

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                        if location[0].isdigit() and base_type != "BOOL":

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                            message = _("Incompatible size of data between \"%s\" and \"BOOL\"")%location

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                        elif location[0] not in LOCATIONDATATYPES:

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                            message = _("Unrecognized data size \"%s\"")%location[0]

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                        elif base_type not in LOCATIONDATATYPES[location[0]]:

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                            message = _("Incompatible size of data between \"%s\" and \"%s\"")%(location, variable_type)

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                        else:

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                            dialog = wx.SingleChoiceDialog(self.ParentWindow, _("Select a variable class:"), _("Variable class"), ["Input", "Output", "Memory"], 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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                                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.ParentWindow.Table.SetValue(row, col, location)

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                                self.ParentWindow.Table.ResetView(self.ParentWindow.VariablesGrid)

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                                self.ParentWindow.SaveValues()

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                            dialog.Destroy()

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            if message is not None:

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                wx.CallAfter(self.ShowMessage, message)

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    def ShowMessage(self, message):

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

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        message.ShowModal()

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        message.Destroy()

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[ID_VARIABLEEDITORPANEL, ID_VARIABLEEDITORPANELVARIABLESGRID, 

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 ID_VARIABLEEDITORCONTROLPANEL, ID_VARIABLEEDITORPANELRETURNTYPE, 

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 ID_VARIABLEEDITORPANELCLASSFILTER, ID_VARIABLEEDITORPANELADDBUTTON, 

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 ID_VARIABLEEDITORPANELDELETEBUTTON, ID_VARIABLEEDITORPANELUPBUTTON, 

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 ID_VARIABLEEDITORPANELDOWNBUTTON, ID_VARIABLEEDITORPANELSTATICTEXT1, 

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 ID_VARIABLEEDITORPANELSTATICTEXT2, ID_VARIABLEEDITORPANELSTATICTEXT3,

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] = [wx.NewId() for _init_ctrls in range(12)]

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class VariablePanel(wx.Panel):

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    if wx.VERSION < (2, 6, 0):

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        def Bind(self, event, function, id = None):

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            if id is not None:

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                event(self, id, function)

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            else:

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                event(self, function)

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    def _init_coll_MainSizer_Items(self, parent):

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        parent.AddWindow(self.ControlPanel, 0, border=5, flag=wx.GROW|wx.ALL)

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        parent.AddWindow(self.VariablesGrid, 0, border=0, flag=wx.GROW)

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    def _init_coll_MainSizer_Growables(self, parent):

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        parent.AddGrowableCol(0)

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        parent.AddGrowableRow(1)

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    def _init_coll_ControlPanelSizer_Items(self, parent):

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        parent.AddWindow(self.staticText1, 0, border=0, flag=wx.ALIGN_CENTER_VERTICAL)

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        parent.AddWindow(self.ReturnType, 0, border=0, flag=0)

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        parent.AddWindow(self.staticText2, 0, border=0, flag=wx.ALIGN_CENTER_VERTICAL)

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        parent.AddWindow(self.ClassFilter, 0, border=0, flag=0)

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        parent.AddWindow(self.AddButton, 0, border=0, flag=0)

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        parent.AddWindow(self.DeleteButton, 0, border=0, flag=0)

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        parent.AddWindow(self.UpButton, 0, border=0, flag=0)

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        parent.AddWindow(self.DownButton, 0, border=0, flag=0)

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    def _init_coll_ControlPanelSizer_Growables(self, parent):

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        parent.AddGrowableCol(3)

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        parent.AddGrowableRow(0)

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    def _init_sizers(self):

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

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        self.ControlPanelSizer = wx.FlexGridSizer(cols=8, hgap=5, rows=1, vgap=5)

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   324

        self._init_coll_MainSizer_Items(self.MainSizer)

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        self._init_coll_MainSizer_Growables(self.MainSizer)

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        self._init_coll_ControlPanelSizer_Items(self.ControlPanelSizer)

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        self._init_coll_ControlPanelSizer_Growables(self.ControlPanelSizer)

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   329

        self.ControlPanel.SetSizer(self.ControlPanelSizer)

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        self.SetSizer(self.MainSizer)

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    def _init_ctrls(self, prnt):

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        wx.Panel.__init__(self, id=ID_VARIABLEEDITORPANEL,

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              name='VariableEditorPanel', parent=prnt, pos=wx.Point(0, 0),

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              size=wx.Size(0, 0), style=wx.TAB_TRAVERSAL)

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        self.VariablesGrid = CustomGrid(id=ID_VARIABLEEDITORPANELVARIABLESGRID,

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              name='VariablesGrid', parent=self, pos=wx.Point(0, 0), 

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              size=wx.Size(0, 0), style=wx.VSCROLL)

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        self.VariablesGrid.SetDropTarget(VariableDropTarget(self))

   341

        if wx.VERSION >= (2, 6, 0):

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            self.VariablesGrid.Bind(wx.grid.EVT_GRID_CELL_CHANGE, self.OnVariablesGridCellChange)

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            self.VariablesGrid.Bind(wx.grid.EVT_GRID_CELL_LEFT_CLICK, self.OnVariablesGridCellLeftClick)

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            self.VariablesGrid.Bind(wx.grid.EVT_GRID_EDITOR_SHOWN, self.OnVariablesGridEditorShown)

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        else:

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            wx.grid.EVT_GRID_CELL_CHANGE(self.VariablesGrid, self.OnVariablesGridCellChange)

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            wx.grid.EVT_GRID_CELL_LEFT_CLICK(self.VariablesGrid, self.OnVariablesGridCellLeftClick)

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            wx.grid.EVT_GRID_EDITOR_SHOWN(self.VariablesGrid, self.OnVariablesGridEditorShown)

   349

   350

        self.ControlPanel = wx.ScrolledWindow(id=ID_VARIABLEEDITORCONTROLPANEL,

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              name='ControlPanel', parent=self, pos=wx.Point(0, 0),

   352

              size=wx.Size(0, 0), style=wx.TAB_TRAVERSAL)

   353

        self.ControlPanel.SetScrollRate(10, 0)

   354

   355

        self.staticText1 = wx.StaticText(id=ID_VARIABLEEDITORPANELSTATICTEXT1,

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              label=_('Return Type:'), name='staticText1', parent=self.ControlPanel,

   357

              pos=wx.Point(0, 0), size=wx.DefaultSize, style=0)

   358

   359

        self.ReturnType = wx.ComboBox(id=ID_VARIABLEEDITORPANELRETURNTYPE,

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              name='ReturnType', parent=self.ControlPanel, pos=wx.Point(0, 0),

   361

              size=wx.Size(145, 28), style=wx.CB_READONLY)

   362

        self.Bind(wx.EVT_COMBOBOX, self.OnReturnTypeChanged, id=ID_VARIABLEEDITORPANELRETURNTYPE)

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   364

        self.staticText2 = wx.StaticText(id=ID_VARIABLEEDITORPANELSTATICTEXT2,

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              label=_('Class Filter:'), name='staticText2', parent=self.ControlPanel,

   366

              pos=wx.Point(0, 0), size=wx.DefaultSize, style=0)

   367

   368

        self.ClassFilter = wx.ComboBox(id=ID_VARIABLEEDITORPANELCLASSFILTER,

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              name='ClassFilter', parent=self.ControlPanel, pos=wx.Point(0, 0),

   370

              size=wx.Size(145, 28), style=wx.CB_READONLY)

   371

        self.Bind(wx.EVT_COMBOBOX, self.OnClassFilter, id=ID_VARIABLEEDITORPANELCLASSFILTER)

   372

   373

        self.AddButton = wx.Button(id=ID_VARIABLEEDITORPANELADDBUTTON, label=_('Add'),

   374

              name='AddButton', parent=self.ControlPanel, pos=wx.Point(0, 0),

   375

              size=wx.DefaultSize, style=0)

   376

   377

        self.DeleteButton = wx.Button(id=ID_VARIABLEEDITORPANELDELETEBUTTON, label=_('Delete'),

   378

              name='DeleteButton', parent=self.ControlPanel, pos=wx.Point(0, 0),

   379

              size=wx.DefaultSize, style=0)

   380

   381

        self.UpButton = wx.Button(id=ID_VARIABLEEDITORPANELUPBUTTON, label='^',

   382

              name='UpButton', parent=self.ControlPanel, pos=wx.Point(0, 0),

   383

              size=wx.Size(28, 28), style=0)

   384

   385

        self.DownButton = wx.Button(id=ID_VARIABLEEDITORPANELDOWNBUTTON, label='v',

   386

              name='DownButton', parent=self.ControlPanel, pos=wx.Point(0, 0),

   387

              size=wx.Size(28, 28), style=0)

   388

   389

        self._init_sizers()

   390

   391

    def __init__(self, parent, window, controler, element_type, debug=False):

   392

        self._init_ctrls(parent)

   393

        self.ParentWindow = window

   394

        self.Controler = controler

   395

        self.ElementType = element_type

   396

        self.Debug = debug

   397

   398

        self.RefreshHighlightsTimer = wx.Timer(self, -1)

   399

        self.Bind(wx.EVT_TIMER, self.OnRefreshHighlightsTimer, self.RefreshHighlightsTimer)

   400

   401

        self.Filter = "All"

   402

        self.FilterChoices = []

   403

        self.FilterChoiceTransfer = GetFilterChoiceTransfer()

   404

   405

        self.DefaultValue = {   "Name" : "", "Class" : "", "Type" : "INT", "Location" : "",

   406

                                "Initial Value" : "", "Option" : "",

   407

                                "Documentation" : "", "Edit" : True

   408

                            }

   409

   410

        if element_type in ["config", "resource"]:

   411

            self.DefaultTypes = {"All" : "Global"}

   412

        else:

   413

            self.DefaultTypes = {"All" : "Local", "Interface" : "Input", "Variables" : "Local"}

   414

   415

        if element_type in ["config", "resource"] \

   416

        or element_type in ["program", "transition", "action"]:

   417

            # this is an element that can have located variables

   418

            self.Table = VariableTable(self, [], GetVariableTableColnames(True))

   419

   420

            if element_type in ["config", "resource"]:

   421

                self.FilterChoices = ["All", "Global"]#,"Access"]

   422

            else:

   423

                self.FilterChoices = ["All",

   424

                                        "Interface", "   Input", "   Output", "   InOut", "   External",

   425

                                        "Variables", "   Local", "   Temp"]#,"Access"]

   426

   427

            # these condense the ColAlignements list

   428

            l = wx.ALIGN_LEFT

   429

            c = wx.ALIGN_CENTER 

   430

   431

            #                      Num  Name    Class   Type    Loc     Init    Option   Doc

   432

            self.ColSizes       = [40,  80,     70,     80,     80,     80,     100,     80]

   433

            self.ColAlignements = [c,   l,      l,      l,      l,      l,      l,       l]

   434

   435

        else:

   436

            # this is an element that cannot have located variables

   437

            self.Table = VariableTable(self, [], GetVariableTableColnames(False))

   438

   439

            if element_type == "function":

   440

                self.FilterChoices = ["All",

   441

                                        "Interface", "   Input", "   Output", "   InOut",

   442

                                        "Variables", "   Local"]

   443

            else:

   444

                self.FilterChoices = ["All",

   445

                                        "Interface", "   Input", "   Output", "   InOut", "   External",

   446

                                        "Variables", "   Local", "   Temp"]

   447

   448

            # these condense the ColAlignements list

   449

            l = wx.ALIGN_LEFT

   450

            c = wx.ALIGN_CENTER 

   451

   452

            #                      Num  Name    Class   Type    Init    Option   Doc

   453

            self.ColSizes       = [40,  80,     70,     80,     80,     100,     160]

   454

            self.ColAlignements = [c,   l,      l,      l,      l,      l,       l]

   455

   456

        for choice in self.FilterChoices:

   457

            self.ClassFilter.Append(_(choice))

   458

   459

        reverse_transfer = {}

   460

        for filter, choice in self.FilterChoiceTransfer.items():

   461

            reverse_transfer[choice] = filter

   462

        self.ClassFilter.SetStringSelection(_(reverse_transfer[self.Filter]))

   463

        self.RefreshTypeList()

   464

   465

        self.VariablesGrid.SetTable(self.Table)

   466

        self.VariablesGrid.SetButtons({"Add": self.AddButton,

   467

                                       "Delete": self.DeleteButton,

   468

                                       "Up": self.UpButton,

   469

                                       "Down": self.DownButton})

   470

        self.VariablesGrid.SetEditable(not self.Debug)

   471

   472

        def _AddVariable(new_row):

   473

            if not self.PouIsUsed or self.Filter not in ["Interface", "Input", "Output", "InOut"]:

   474

                row_content = self.DefaultValue.copy()

   475

                if self.Filter in self.DefaultTypes:

   476

                    row_content["Class"] = self.DefaultTypes[self.Filter]

   477

                else:

   478

                    row_content["Class"] = self.Filter

   479

                if self.Filter == "All" and len(self.Values) > 0:

   480

                    self.Values.insert(new_row, row_content)

   481

                else:

   482

                    self.Values.append(row_content)

   483

                    new_row = self.Table.GetNumberRows()

   484

                self.SaveValues()

   485

                self.RefreshValues()

   486

                return new_row

   487

            return self.VariablesGrid.GetGridCursorRow()

   488

        setattr(self.VariablesGrid, "_AddRow", _AddVariable)

   489

   490

        def _DeleteVariable(row):

   491

            if (self.Table.GetValueByName(row, "Edit") and 

   492

                (not self.PouIsUsed or self.Table.GetValueByName(row, "Class") not in ["Input", "Output", "InOut"])):

   493

                self.Values.remove(self.Table.GetRow(row))

   494

                self.SaveValues()

   495

                self.RefreshValues()

   496

        setattr(self.VariablesGrid, "_DeleteRow", _DeleteVariable)

   497

   498

        def _MoveVariable(row, move):

   499

            if (self.Filter == "All" and 

   500

                (not self.PouIsUsed or self.Table.GetValueByName(row, "Class") not in ["Input", "Output", "InOut"])):

   501

                new_row = max(0, min(row + move, len(self.Values) - 1))

   502

                if new_row != row:

   503

                    self.Values.insert(new_row, self.Values.pop(row))

   504

                    self.SaveValues()

   505

                    self.RefreshValues()