dialogs/ArrayTypeDialog.py
author Edouard Tisserant
Wed, 10 Mar 2021 09:59:18 +0100
changeset 2732 a3f0e4148714
parent 2450 5024c19ca8f0
child 3303 0ffb41625592
permissions -rw-r--r--
Runtime: Added PostStart methot to PLCObject, called after PLC is started, with all libraries and python object already created, and python extensions "Start" methods being called.
This is called before python thread processing py_eval blocks starts. Example purpose: attach additional ressource to web services
# -*- coding: utf-8 -*-

# This file is part of Beremiz, a Integrated Development Environment for
# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
#
# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
#
# See COPYING file for copyrights details.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.


from __future__ import absolute_import
import re

import wx

from controls import CustomEditableListBox

# -------------------------------------------------------------------------------
#                                  Helpers
# -------------------------------------------------------------------------------

DIMENSION_MODEL = re.compile(r"([0-9]+)\.\.([0-9]+)$")

# -------------------------------------------------------------------------------
#                             Array Type Dialog
# -------------------------------------------------------------------------------


class ArrayTypeDialog(wx.Dialog):

    def __init__(self, parent, datatypes, infos):
        wx.Dialog.__init__(self, parent, title=_('Edit array type properties'))

        main_sizer = wx.FlexGridSizer(cols=1, hgap=0, rows=3, vgap=10)
        main_sizer.AddGrowableCol(0)
        main_sizer.AddGrowableRow(1)

        top_sizer = wx.BoxSizer(wx.HORIZONTAL)
        main_sizer.AddSizer(top_sizer, border=20,
                            flag=wx.GROW | wx.TOP | wx.LEFT | wx.RIGHT)

        basetype_label = wx.StaticText(self, label=_('Base Type:'))
        top_sizer.AddWindow(basetype_label, 1, flag=wx.ALIGN_BOTTOM)

        self.BaseType = wx.ComboBox(self, style=wx.CB_READONLY)
        top_sizer.AddWindow(self.BaseType, 1, flag=wx.GROW)

        self.Dimensions = CustomEditableListBox(self, label=_("Dimensions:"),
                                                style=(wx.gizmos.EL_ALLOW_NEW |
                                                       wx.gizmos.EL_ALLOW_EDIT |
                                                       wx.gizmos.EL_ALLOW_DELETE))
        for func in ["_OnLabelEndEdit",
                     "_OnAddButton",
                     "_OnDelButton",
                     "_OnUpButton",
                     "_OnDownButton"]:
            setattr(self.Dimensions, func, self.OnDimensionsChanged)
        main_sizer.AddSizer(self.Dimensions, border=20,
                            flag=wx.GROW | wx.LEFT | wx.RIGHT)

        button_sizer = self.CreateButtonSizer(wx.OK | wx.CANCEL | wx.CENTRE)
        self.Bind(wx.EVT_BUTTON, self.OnOK, button_sizer.GetAffirmativeButton())
        main_sizer.AddSizer(button_sizer, border=20,
                            flag=wx.ALIGN_RIGHT | wx.BOTTOM | wx.LEFT | wx.RIGHT)

        self.SetSizer(main_sizer)

        for datatype in datatypes:
            self.BaseType.Append(datatype)

        if isinstance(infos, tuple) and infos[0] == "array":
            self.BaseType.SetStringSelection(infos[1])
            self.Dimensions.SetStrings(map("..".join, infos[2]))
        elif infos in datatypes:
            self.BaseType.SetStringSelection(infos)

        self.BaseType.SetFocus()
        self.Fit()

    def GetDimensions(self):
        message = None
        dimensions_list = []
        dimension_strings = self.Dimensions.GetStrings()
        if len(dimension_strings) == 0:
            message = _("Empty dimension isn't allowed.")

        for dimensions in dimension_strings:
            result = DIMENSION_MODEL.match(dimensions)
            if result is None:
                message = _("\"%s\" value isn't a valid array dimension!") % dimensions
                break
            bounds = result.groups()
            if int(bounds[0]) >= int(bounds[1]):
                message = _("\"%s\" value isn't a valid array dimension!\nRight value must be greater than left value.") % dimensions
                break
            dimensions_list.append(bounds)

        if message is not None:
            dlg = wx.MessageDialog(self, message, _("Error"), wx.OK | wx.ICON_ERROR)
            dlg.ShowModal()
            dlg.Destroy()
            return None
        return dimensions_list

    def OnDimensionsChanged(self, event):
        wx.CallAfter(self.GetDimensions)
        event.Skip()

    def OnOK(self, event):
        if self.GetDimensions() is not None:
            self.EndModal(wx.ID_OK)

    def GetValue(self):
        return "array", self.BaseType.GetStringSelection(), self.GetDimensions()