1

#!/usr/bin/env python

     2

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

     3

     4

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

     5

#based on the plcopen standard. 

     6

#

     7

#Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD

     8

#

     9

#See COPYING file for copyrights details.

    10

#

    11

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

    12

#modify it under the terms of the GNU General Public

    13

#License as published by the Free Software Foundation; either

    14

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

    15

#

    16

#This library is distributed in the hope that it will be useful,

    17

#but WITHOUT ANY WARRANTY; without even the implied warranty of

    18

#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    19

#General Public License for more details.

    20

#

    21

#You should have received a copy of the GNU General Public

    22

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

    23

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

    24

    25

import re

    26

    27

import wx

    28

    29

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

    30

#                                  Helpers

    31

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

    32

    33

MICROSECONDS = 0.001

    34

MILLISECONDS = 1

    35

SECOND = 1000

    36

MINUTE = 60 * SECOND

    37

HOUR = 60 * MINUTE

    38

DAY = 24 * HOUR

    39

    40

IEC_TIME_MODEL = re.compile("(?:T|TIME)#(-)?(?:(%(float)s)D_?)?(?:(%(float)s)H_?)?(?:(%(float)s)M(?!S)_?)?(?:(%(float)s)S_?)?(?:(%(float)s)MS)?" % {"float": "[0-9]+(?:\.[0-9]+)?"})

    41

    42

CONTROLS = [

    43

    ("Days", _('Days:')),

    44

    ("Hours", _('Hours:')),

    45

    ("Minutes", _('Minutes:')),

    46

    ("Seconds", _('Seconds:')),

    47

    ("Milliseconds", _('Milliseconds:')),

    48

    ("Microseconds", _('Microseconds:')),

    49

]

    50

    51

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

    52

#                         Edit Duration Value Dialog

    53

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

    54

    55

class DurationEditorDialog(wx.Dialog):

    56

    57

    def __init__(self, parent):

    58

        wx.Dialog.__init__(self, parent, 

    59

              size=wx.Size(700, 200), title=_('Edit Duration'))

    60

    61

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

    62

        main_sizer.AddGrowableCol(0)

    63

        main_sizer.AddGrowableRow(0)

    64

    65

        controls_sizer = wx.FlexGridSizer(cols=len(CONTROLS), hgap=10, rows=2, vgap=10)

    66

        main_sizer.AddSizer(controls_sizer, border=20, 

    67

              flag=wx.TOP|wx.LEFT|wx.RIGHT|wx.GROW)

    68

    69

        controls = []

    70

        for i, (name, label) in enumerate(CONTROLS):

    71

            controls_sizer.AddGrowableCol(i)

    72

    73

            st = wx.StaticText(self, label=label)

    74

            txtctrl = wx.TextCtrl(self, value='0', style=wx.TE_PROCESS_ENTER)

    75

            self.Bind(wx.EVT_TEXT_ENTER, 

    76

                      self.GetControlValueTestFunction(txtctrl), 

    77

                      txtctrl)

    78

            setattr(self, name, txtctrl)

    79

    80

            controls.append((st, txtctrl))

    81

    82

        for st, txtctrl in controls:

    83

            controls_sizer.AddWindow(st, flag=wx.GROW)

    84

    85

        for st, txtctrl in controls:

    86

            controls_sizer.AddWindow(txtctrl, flag=wx.GROW)

    87

    88

        button_sizer = self.CreateButtonSizer(wx.OK|wx.CANCEL|wx.CENTRE)

    89

        self.Bind(wx.EVT_BUTTON, self.OnOK, button_sizer.GetAffirmativeButton())

    90

        main_sizer.AddSizer(button_sizer, border=20, 

    91

              flag=wx.ALIGN_RIGHT|wx.BOTTOM|wx.LEFT|wx.RIGHT)

    92

    93

        self.SetSizer(main_sizer)

    94

    95

        self.Days.SetFocus()

    96

    97

    def SetDuration(self, value):

    98

        result = IEC_TIME_MODEL.match(value.upper())

    99

        if result is not None:

   100

            values = result.groups()

   101

            for control, index in [(self.Days, 1), (self.Hours, 2),

   102

                                   (self.Minutes, 3), (self.Seconds, 4)]:

   103

                value = values[index]

   104

                if value is not None:

   105

                    control.SetValue(value)

   106

                else:

   107

                    control.SetValue("0")

   108

            milliseconds = values[5]

   109

            if milliseconds is not None:

   110

                self.Milliseconds.SetValue("%d" % int(float(milliseconds)))

   111

                self.Microseconds.SetValue("%.3f" % ((float(milliseconds) % MILLISECONDS) / MICROSECONDS))

   112

            else:

   113

                self.Milliseconds.SetValue("0")

   114

                self.Microseconds.SetValue("0")

   115

   116

    def GetControlValueTestFunction(self, control):

   117

        def OnValueChanged(event):

   118

            try:

   119

                value = float(control.GetValue())

   120

            except ValueError, e:

   121

                message = wx.MessageDialog(self, _("Invalid value!\nYou must fill a numeric value."), _("Error"), wx.OK|wx.ICON_ERROR)

   122

                message.ShowModal()

   123

                message.Destroy()

   124

            event.Skip()

   125

        return OnValueChanged

   126

   127

    def GetDuration(self):

   128

        milliseconds = 0

   129

        for control, factor in [(self.Days, DAY), (self.Hours, HOUR),

   130

                                (self.Minutes, MINUTE), (self.Seconds, SECOND),

   131

                                (self.Milliseconds, MILLISECONDS), (self.Microseconds, MICROSECONDS)]:

   132

   133

            milliseconds += float(control.GetValue()) * factor

   134

   135

        not_null = False

   136

        duration = "T#"

   137

        for value, format in [(int(milliseconds) / DAY, "%dd"),

   138

                            ((int(milliseconds) % DAY) / HOUR, "%dh"),

   139

                            ((int(milliseconds) % HOUR) / MINUTE, "%dm"),

   140

                            ((int(milliseconds) % MINUTE) / SECOND, "%ds")]:

   141

   142

            if value > 0 or not_null:

   143

                duration += format % value

   144

                not_null = True

   145

   146

        duration += "%gms" % (milliseconds % SECOND)

   147

        return duration

   148

   149

    def OnOK(self, event):

   150

        errors = []

   151

        for control, name in [(self.Days, "days"), (self.Hours, "hours"), 

   152

                              (self.Minutes, "minutes"), (self.Seconds, "seconds"),

   153

                              (self.Milliseconds, "milliseconds")]:

   154

            try:

   155

                value = float(control.GetValue())

   156

            except ValueError, e:

   157

                errors.append(name)

   158

        if len(errors) > 0:

   159

            if len(errors) == 1:

   160

                message = _("Field %s hasn't a valid value!") % errors[0]

   161

            else:

   162

                message = _("Fields %s haven't a valid value!") % ",".join(errors)

   163

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

   164

            dialog.ShowModal()

   165

            dialog.Destroy()

   166

        else:

   167

            self.EndModal(wx.ID_OK)