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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 re

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from types import TupleType, StringType, UnicodeType

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import wx

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import wx.grid

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import wx.lib.buttons

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from plcopen.structures import LOCATIONDATATYPES, TestIdentifier, IEC_KEYWORDS

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from graphics.GraphicCommons import REFRESH_HIGHLIGHT_PERIOD, ERROR_HIGHLIGHT

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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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from util.BitmapLibrary import GetBitmap

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

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#                                 Helpers

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

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    45

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

    46

    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)

    50

    51

[TITLE, EDITORTOOLBAR, FILEMENU, EDITMENU, DISPLAYMENU, PROJECTTREE, 

    52

 POUINSTANCEVARIABLESPANEL, LIBRARYTREE, SCALING, PAGETITLES

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] = range(10)

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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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LOCATION_MODEL = re.compile("((?:%[IQM](?:\*|(?:[XBWLD]?[0-9]+(?:\.[0-9]+)*)))?)$")

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VARIABLE_NAME_SUFFIX_MODEL = re.compile("([0-9]*)$")

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

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#                            Variables Panel Table

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

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    98

class VariableTable(CustomTable):

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   100

    """

   101

    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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   108

    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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   123

    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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   137

    def GetOldValue(self):

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        return self.old_value

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   140

    def _updateColAttrs(self, grid):

   141

        """

   142

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

   143

        appropriate renderer given the column name.

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   145

        Otherwise default to the default renderer.

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        """

   147

        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, {})

   151

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

   152

                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:

   158

                    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"])

   162

                        if len(options) > 1:

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                            editor = wx.grid.GridCellChoiceEditor()

   164

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

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                        else:

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                            grid.SetReadOnly(row, col, True)

   167

                    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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                            editor = wx.grid.GridCellTextEditor()

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                            renderer = wx.grid.GridCellStringRenderer()

   172

                        elif colname == "Initial Value":

   173

                            if var_class not in ["External", "InOut"]:

   174

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

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                                    editor = wx.grid.GridCellChoiceEditor()

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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":

   183

                            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":

   189

                            if len(self.Parent.ClassList) == 1:

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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 = []

   194

                                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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   200

                grid.SetCellEditor(row, col, editor)

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                grid.SetCellRenderer(row, col, renderer)

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   203

                if colname == "Location" and LOCATION_MODEL.match(self.GetValueByName(row, colname)) is None:

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                    highlight_colours = ERROR_HIGHLIGHT

   205

                else:

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

   207

                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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   211

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

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#                         Variable Panel Drop Target

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

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   215

class VariableDropTarget(wx.TextDropTarget):

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    '''

   217

    This allows dragging a variable location from somewhere to the Location

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    column of a variable row.

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   220

    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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   223

    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).

   225

    '''

   226

    def __init__(self, parent):

   227

        wx.TextDropTarget.__init__(self)

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        self.ParentWindow = parent

   229

   230

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

   231

        self.ParentWindow.ParentWindow.Select()

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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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        message = None

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        element_type = self.ParentWindow.ElementType

   237

        try:

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            values = eval(data)    

   239

        except:

   240

            message = _("Invalid value \"%s\" for variable grid element")%data

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            values = None

   242

        if not isinstance(values, TupleType):

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            message = _("Invalid value \"%s\" for variable grid element")%data

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            values = None

   245

        if values is not None:

   246

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

   247

                colname = self.ParentWindow.Table.GetColLabelValue(col, False)

   248

                if colname == "Location" and values[1] == "location":

   249

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

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

   251

                    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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                        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)

   257

   258

                        if values[2] is not None:

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                            base_location_type = self.ParentWindow.Controler.GetBaseType(values[2])

   260

                            if values[2] != variable_type and base_type != base_location_type:

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

   262

   263

                        if message is None:

   264

                            if not location.startswith("%"):

   265

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

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

   267

                                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)

   271

                                else:

   272

                                    dialog = wx.SingleChoiceDialog(self.ParentWindow.ParentWindow.ParentWindow, 

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                                          _("Select a variable class:"), _("Variable class"), 

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                                          ["Input", "Output", "Memory"], 

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                                          wx.DEFAULT_DIALOG_STYLE|wx.OK|wx.CANCEL)

   276

                                    if dialog.ShowModal() == wx.ID_OK:

   277

                                        selected = dialog.GetSelection()

   278

                                    else:

   279

                                        selected = None

   280

                                    dialog.Destroy()

   281

                                    if selected is None:

   282

                                        return

   283

                                    if selected == 0:

   284

                                        location = "%I" + location

   285

                                    elif selected == 1:

   286

                                        location = "%Q" + location

   287

                                    else:

   288

                                        location = "%M" + location

   289

   290

                            if message is None:

   291

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

   292

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

   293

                                self.ParentWindow.SaveValues()

   294

                elif colname == "Initial Value" and values[1] == "Constant":

   295

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

   296

                        message = _("Can't set an initial value to a function block instance")

   297

                    else:

   298

                        self.ParentWindow.Table.SetValue(row, col, values[0])

   299

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

   300

                        self.ParentWindow.SaveValues()

   301

            elif (element_type not in ["config", "resource", "function"] and values[1] == "Global" and 

   302

                  self.ParentWindow.Filter in ["All", "Interface", "External"] or

   303

                  element_type != "function" and values[1] == "location"):

   304

                if values[1] == "location":

   305

                    var_name = values[3]

   306

                else:

   307

                    var_name = values[0]

   308

                tagname = self.ParentWindow.GetTagName()

   309

                if var_name.upper() in [name.upper() 

   310

                        for name in self.ParentWindow.Controler.\

   311

                            GetProjectPouNames(self.ParentWindow.Debug)]:

   312

                    message = _("\"%s\" pou already exists!")%var_name

   313

                elif not var_name.upper() in [name.upper() 

   314

                        for name in self.ParentWindow.Controler.\

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                            GetEditedElementVariables(tagname, self.ParentWindow.Debug)]:

   316

                    var_infos = self.ParentWindow.DefaultValue.copy()

   317

                    var_infos["Name"] = var_name

   318

                    var_infos["Type"] = values[2]

   319

                    if values[1] == "location":

   320

                        location = values[0]

   321

                        if not location.startswith("%"):

   322

                            dialog = wx.SingleChoiceDialog(self.ParentWindow.ParentWindow.ParentWindow, 

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                                  _("Select a variable class:"), _("Variable class"), 

   324

                                  ["Input", "Output", "Memory"], 

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                                  wx.DEFAULT_DIALOG_STYLE|wx.OK|wx.CANCEL)

   326

                            if dialog.ShowModal() == wx.ID_OK:

   327

                                selected = dialog.GetSelection()

   328

                            else:

   329

                                selected = None

   330

                            dialog.Destroy()

   331

                            if selected is None:

   332

                                return

   333

                            if selected == 0:

   334

                                location = "%I" + location

   335

                            elif selected == 1:

   336

                                location = "%Q" + location

   337

                            else:

   338

                                location = "%M" + location

   339

                        if element_type == "functionBlock":

   340

                            configs = self.ParentWindow.Controler.GetProjectConfigNames(

   341

                                                                self.ParentWindow.Debug)

   342

                            if len(configs) == 0:

   343

                                return

   344

                            if not var_name.upper() in [name.upper() 

   345

                                for name in self.ParentWindow.Controler.\

   346

                                    GetConfigurationVariableNames(configs[0])]:

   347

                                self.ParentWindow.Controler.AddConfigurationGlobalVar(

   348

                                    configs[0], values[2], var_name, location, "")

   349

                            var_infos["Class"] = "External"

   350

                        else:

   351

                            if element_type == "program":

   352

                                var_infos["Class"] = "Local"

   353

                            else:

   354

                                var_infos["Class"] = "Global"

   355

                            var_infos["Location"] = location

   356

                    else:

   357

                        var_infos["Class"] = "External"

   358

                    var_infos["Number"] = len(self.ParentWindow.Values)

   359

                    self.ParentWindow.Values.append(var_infos)

   360

                    self.ParentWindow.SaveValues()

   361

                    self.ParentWindow.RefreshValues()

   362

   363

        if message is not None:

   364

            wx.CallAfter(self.ShowMessage, message)

   365

   366

    def ShowMessage(self, message):

   367

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

   368

        message.ShowModal()

   369

        message.Destroy()

   370

   371

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

   372

#                               Variable Panel

   373

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

   374

   375

class VariablePanel(wx.Panel):

   376

   377

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

   378

        wx.Panel.__init__(self, parent, style=wx.TAB_TRAVERSAL)

   379

   380

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

   381

        self.MainSizer.AddGrowableCol(0)

   382

        self.MainSizer.AddGrowableRow(1)

   383

   384

        controls_sizer = wx.FlexGridSizer(cols=10, hgap=5, rows=1, vgap=5)

   385

        controls_sizer.AddGrowableCol(5)

   386

        controls_sizer.AddGrowableRow(0)

   387

        self.MainSizer.AddSizer(controls_sizer, border=5, flag=wx.GROW|wx.ALL)

   388

   389

        self.ReturnTypeLabel = wx.StaticText(self, label=_('Return Type:'))

   390

        controls_sizer.AddWindow(self.ReturnTypeLabel, flag=wx.ALIGN_CENTER_VERTICAL)

   391

   392

        self.ReturnType = wx.ComboBox(self,

   393

              size=wx.Size(145, -1), style=wx.CB_READONLY)

   394

        self.Bind(wx.EVT_COMBOBOX, self.OnReturnTypeChanged, self.ReturnType)

   395

        controls_sizer.AddWindow(self.ReturnType)

   396

   397

        self.DescriptionLabel = wx.StaticText(self, label=_('Description:'))

   398

        controls_sizer.AddWindow(self.DescriptionLabel, flag=wx.ALIGN_CENTER_VERTICAL)

   399

   400

        self.Description = wx.TextCtrl(self,

   401

              size=wx.Size(250, -1), style=wx.TE_PROCESS_ENTER)

   402

        self.Bind(wx.EVT_TEXT_ENTER, self.OnDescriptionChanged, self.Description)

   403

        self.Description.Bind(wx.EVT_KILL_FOCUS, self.OnDescriptionChanged)

   404

        controls_sizer.AddWindow(self.Description) 

   405

   406

        class_filter_label = wx.StaticText(self, label=_('Class Filter:'))

   407

        controls_sizer.AddWindow(class_filter_label, flag=wx.ALIGN_CENTER_VERTICAL)

   408

   409

        self.ClassFilter = wx.ComboBox(self, 

   410

              size=wx.Size(145, -1), style=wx.CB_READONLY)

   411

        self.Bind(wx.EVT_COMBOBOX, self.OnClassFilter, self.ClassFilter)

   412

        controls_sizer.AddWindow(self.ClassFilter)

   413

   414

        for name, bitmap, help in [

   415

                ("AddButton", "add_element", _("Add variable")),

   416

                ("DeleteButton", "remove_element", _("Remove variable")),

   417

                ("UpButton", "up", _("Move variable up")),

   418

                ("DownButton", "down", _("Move variable down"))]:

   419

            button = wx.lib.buttons.GenBitmapButton(self, bitmap=GetBitmap(bitmap), 

   420

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

   421

            button.SetToolTipString(help)

   422

            setattr(self, name, button)

   423

            controls_sizer.AddWindow(button)

   424

   425

        self.VariablesGrid = CustomGrid(self, style=wx.VSCROLL)

   426

        self.VariablesGrid.SetDropTarget(VariableDropTarget(self))

   427

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

   428

              self.OnVariablesGridCellChange)

   429

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

   430

              self.OnVariablesGridCellLeftClick)

   431

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

   432

              self.OnVariablesGridEditorShown)

   433

        self.MainSizer.AddWindow(self.VariablesGrid, flag=wx.GROW)

   434

   435

        self.SetSizer(self.MainSizer)

   436

   437

        self.ParentWindow = window

   438

        self.Controler = controler

   439

        self.ElementType = element_type

   440

        self.Debug = debug

   441

   442

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

   443

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

   444

              self.RefreshHighlightsTimer)

   445

   446

        self.Filter = "All"

   447

        self.FilterChoices = []

   448

        self.FilterChoiceTransfer = GetFilterChoiceTransfer()

   449

   450

        self.DefaultValue = {

   451

             "Name" : "", 

   452

             "Class" : "", 

   453

             "Type" : "INT", 

   454

             "Location" : "",

   455

             "Initial Value" : "", 

   456

             "Option" : "",

   457

             "Documentation" : "", 

   458

             "Edit" : True

   459

        }

   460

   461

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

   462

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

   463

        else:

   464

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

   465

   466

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

   467

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

   468

            # this is an element that can have located variables

   469

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

   470

   471

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

   472

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

   473

            else:

   474

                self.FilterChoices = ["All",

   475

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

   476

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

   477

   478

            # these condense the ColAlignements list

   479

            l = wx.ALIGN_LEFT

   480

            c = wx.ALIGN_CENTER 

   481

   482

            #                      Num  Name    Class   Type    Loc     Init    Option   Doc

   483

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

   484

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

   485

   486

        else:

   487

            # this is an element that cannot have located variables

   488

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

   489

   490

            if element_type == "function":

   491

                self.FilterChoices = ["All",

   492

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

   493

                                        "Variables", "   Local"]

   494

            else:

   495

                self.FilterChoices = ["All",

   496

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

   497

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

   498

   499

            # these condense the ColAlignements list

   500

            l = wx.ALIGN_LEFT

   501

            c = wx.ALIGN_CENTER 

   502

   503

            #                      Num  Name    Class   Type    Init    Option   Doc

   504

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

   505

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

   506

   507

        for choice in self.FilterChoices:

   508

            self.ClassFilter.Append(_(choice))

   509

   510

        reverse_transfer = {}

   511

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

   512

            reverse_transfer[choice] = filter

   513

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

   514

        self.RefreshTypeList()

   515

   516

        self.VariablesGrid.SetTable(self.Table)

   517

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

   518

                                       "Delete": self.DeleteButton,

   519

                                       "Up": self.UpButton,

   520

                                       "Down": self.DownButton})

   521

        self.VariablesGrid.SetEditable(not self.Debug)