dialogs/BrowseLocationsDialog.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Fri, 28 Sep 2018 17:52:30 +0300
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child 2575 aee08bd135d8
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cleanup etherlab: pep8, E401 multiple imports on one line
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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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# Copyright (C) 2017: Andrey Skvortsov <andrej.skvortzov@gmail.com>
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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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from __future__ import absolute_import
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import wx
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from plcopen.structures import LOCATIONDATATYPES
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from PLCControler import LOCATION_CONFNODE, LOCATION_MODULE, LOCATION_GROUP, LOCATION_VAR_INPUT, LOCATION_VAR_OUTPUT, LOCATION_VAR_MEMORY
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from util.BitmapLibrary import GetBitmap
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from util.TranslationCatalogs import NoTranslate
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# -------------------------------------------------------------------------------
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#                                   Helpers
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# -------------------------------------------------------------------------------
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def GetDirFilterChoiceOptions():
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    _ = NoTranslate
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    return [(_("All"), [LOCATION_VAR_INPUT, LOCATION_VAR_OUTPUT, LOCATION_VAR_MEMORY]),
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            (_("Input"), [LOCATION_VAR_INPUT]),
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            (_("Output"), [LOCATION_VAR_OUTPUT]),
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            (_("Memory"), [LOCATION_VAR_MEMORY])]
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def GetTypeFilterChoiceOptions():
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    _ = NoTranslate
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    return [_("All"),
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            _("Type and derivated"),
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            _("Type strict")]
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# turn LOCATIONDATATYPES inside-out
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LOCATION_SIZES = {}
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for size, types in LOCATIONDATATYPES.iteritems():
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    for type in types:
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        LOCATION_SIZES[type] = size
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# -------------------------------------------------------------------------------
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#                            Browse Locations Dialog
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# -------------------------------------------------------------------------------
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class BrowseLocationsDialog(wx.Dialog):
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    def __init__(self, parent, var_type, controller):
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        wx.Dialog.__init__(self, parent, title=_('Browse Locations'),
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                           style=wx.DEFAULT_DIALOG_STYLE | wx.RESIZE_BORDER)
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        self.DIRFILTERCHOICE_OPTIONS = dict(
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            [(_(option), filter) for option, filter in GetDirFilterChoiceOptions()])
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        main_sizer = wx.FlexGridSizer(cols=1, hgap=0, rows=3, vgap=10)
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        main_sizer.AddGrowableCol(0)
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        main_sizer.AddGrowableRow(1)
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        locations_label = wx.StaticText(self, label=_('Locations available:'))
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        main_sizer.AddWindow(locations_label, border=20,
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                             flag=wx.TOP | wx.LEFT | wx.RIGHT | wx.GROW)
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        self.LocationsTree = wx.TreeCtrl(self,
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                                         style=(wx.TR_HAS_BUTTONS |
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                                                wx.TR_SINGLE |
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                                                wx.SUNKEN_BORDER |
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                                                wx.TR_HIDE_ROOT |
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                                                wx.TR_LINES_AT_ROOT))
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        self.LocationsTree.SetInitialSize(wx.Size(-1, 300))
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        self.Bind(wx.EVT_TREE_ITEM_ACTIVATED, self.OnLocationsTreeItemActivated,
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                  self.LocationsTree)
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        main_sizer.AddWindow(self.LocationsTree, border=20,
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                             flag=wx.LEFT | wx.RIGHT | wx.GROW)
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        button_gridsizer = wx.FlexGridSizer(cols=5, hgap=5, rows=1, vgap=0)
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        button_gridsizer.AddGrowableCol(1)
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        button_gridsizer.AddGrowableCol(3)
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        button_gridsizer.AddGrowableRow(0)
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        main_sizer.AddSizer(button_gridsizer, border=20,
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                            flag=wx.BOTTOM | wx.LEFT | wx.RIGHT | wx.GROW)
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        direction_label = wx.StaticText(self, label=_('Direction:'))
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        button_gridsizer.AddWindow(direction_label,
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                                   flag=wx.ALIGN_CENTER_VERTICAL)
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        self.DirFilterChoice = wx.ComboBox(self, style=wx.CB_READONLY)
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        self.Bind(wx.EVT_COMBOBOX, self.OnFilterChoice, self.DirFilterChoice)
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        button_gridsizer.AddWindow(self.DirFilterChoice,
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                                   flag=wx.GROW | wx.ALIGN_CENTER_VERTICAL)
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        filter_label = wx.StaticText(self, label=_('Type:'))
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        button_gridsizer.AddWindow(filter_label,
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                                   flag=wx.ALIGN_CENTER_VERTICAL)
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        self.TypeFilterChoice = wx.ComboBox(self, style=wx.CB_READONLY)
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        self.Bind(wx.EVT_COMBOBOX, self.OnFilterChoice, self.TypeFilterChoice)
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        button_gridsizer.AddWindow(self.TypeFilterChoice,
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                                   flag=wx.GROW | wx.ALIGN_CENTER_VERTICAL)
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        button_sizer = self.CreateButtonSizer(wx.OK | wx.CANCEL | wx.CENTRE)
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        self.Bind(wx.EVT_BUTTON, self.OnOK, button_sizer.GetAffirmativeButton())
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        button_gridsizer.AddSizer(button_sizer, flag=wx.ALIGN_RIGHT)
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        self.SetSizer(main_sizer)
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        self.Controller = controller
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        self.VarType = var_type
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        self.BaseVarType = self.Controller.GetBaseType(self.VarType)
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        self.VarTypeSize = LOCATION_SIZES[self.BaseVarType]
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        self.Locations = self.Controller.GetVariableLocationTree()
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        # Define Tree item icon list
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        self.TreeImageList = wx.ImageList(16, 16)
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        self.TreeImageDict = {}
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        # Icons for items
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        for imgname, itemtype in [
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                ("CONFIGURATION", LOCATION_CONFNODE),
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                ("RESOURCE",      LOCATION_MODULE),
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                ("PROGRAM",       LOCATION_GROUP),
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                ("VAR_INPUT",     LOCATION_VAR_INPUT),
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                ("VAR_OUTPUT",    LOCATION_VAR_OUTPUT),
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                ("VAR_LOCAL",     LOCATION_VAR_MEMORY)]:
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            self.TreeImageDict[itemtype] = self.TreeImageList.Add(GetBitmap(imgname))
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        # Assign icon list to TreeCtrls
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        self.LocationsTree.SetImageList(self.TreeImageList)
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        # Set a options for the choice
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        for option, _filter in GetDirFilterChoiceOptions():
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            self.DirFilterChoice.Append(_(option))
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        self.DirFilterChoice.SetStringSelection(_("All"))
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        for option in GetTypeFilterChoiceOptions():
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            self.TypeFilterChoice.Append(_(option))
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        self.TypeFilterChoice.SetStringSelection(_("All"))
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        self.RefreshFilters()
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        self.RefreshLocationsTree()
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        self.Fit()
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    def RefreshFilters(self):
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        self.DirFilter = self.DIRFILTERCHOICE_OPTIONS[self.DirFilterChoice.GetStringSelection()]
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        self.TypeFilter = self.TypeFilterChoice.GetSelection()
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    def RefreshLocationsTree(self):
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        root = self.LocationsTree.GetRootItem()
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        if not root.IsOk():
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            root = self.LocationsTree.AddRoot("")
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        self.GenerateLocationsTreeBranch(root, self.Locations)
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    def FilterType(self, location_type, location_size):
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        if self.TypeFilter == 0:
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            return True
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        if location_size != self.VarTypeSize:
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            return False
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        if self.TypeFilter == 1:
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            return self.Controller.IsOfType(location_type, self.BaseVarType)
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        elif self.TypeFilter == 2:
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            return location_type == self.VarType
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        return True
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    def GenerateLocationsTreeBranch(self, root, locations):
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        to_delete = []
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        item, root_cookie = self.LocationsTree.GetFirstChild(root)
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        for loc_infos in locations:
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            infos = loc_infos.copy()
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            if infos["type"] in [LOCATION_CONFNODE, LOCATION_MODULE, LOCATION_GROUP] or\
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               infos["type"] in self.DirFilter and self.FilterType(infos["IEC_type"], infos["size"]):
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                children = [child for child in infos.pop("children")]
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                if not item.IsOk():
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                    item = self.LocationsTree.AppendItem(root, infos["name"])
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                    if wx.Platform != '__WXMSW__':
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                        item, root_cookie = self.LocationsTree.GetNextChild(root, root_cookie)
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                else:
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                    self.LocationsTree.SetItemText(item, infos["name"])
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                self.LocationsTree.SetPyData(item, infos)
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                self.LocationsTree.SetItemImage(item, self.TreeImageDict[infos["type"]])
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                self.GenerateLocationsTreeBranch(item, children)
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                item, root_cookie = self.LocationsTree.GetNextChild(root, root_cookie)
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        while item.IsOk():
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            to_delete.append(item)
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            item, root_cookie = self.LocationsTree.GetNextChild(root, root_cookie)
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        for item in to_delete:
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            self.LocationsTree.Delete(item)
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    def OnLocationsTreeItemActivated(self, event):
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        infos = self.LocationsTree.GetPyData(event.GetItem())
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        if infos["type"] not in [LOCATION_CONFNODE, LOCATION_MODULE, LOCATION_GROUP]:
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            wx.CallAfter(self.EndModal, wx.ID_OK)
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        event.Skip()
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    def OnFilterChoice(self, event):
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        self.RefreshFilters()
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        self.RefreshLocationsTree()
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    def GetValues(self):
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        selected = self.LocationsTree.GetSelection()
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        return self.LocationsTree.GetPyData(selected)
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    def OnOK(self, event):
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        selected = self.LocationsTree.GetSelection()
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        var_infos = None
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        if selected.IsOk():
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            var_infos = self.LocationsTree.GetPyData(selected)
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        if var_infos is None or var_infos["type"] in [LOCATION_CONFNODE, LOCATION_MODULE, LOCATION_GROUP]:
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            dialog = wx.MessageDialog(self, _("A location must be selected!"), _("Error"), wx.OK | wx.ICON_ERROR)
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            dialog.ShowModal()
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            dialog.Destroy()
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        else:
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            self.EndModal(wx.ID_OK)