# -*- 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 datetime
import wx
# -------------------------------------------------------------------------------
# Helpers
# -------------------------------------------------------------------------------
LOCATIONDATATYPES = {"X": ["BOOL"],
"B": ["SINT", "USINT", "BYTE", "STRING"],
"W": ["INT", "UINT", "WORD", "WSTRING"],
"D": ["DINT", "UDINT", "REAL", "DWORD"],
"L": ["LINT", "ULINT", "LREAL", "LWORD"]}
def gen_get_function(f):
def get_function(v):
try:
return f(v)
except Exception:
return None
return get_function
def gen_get_string(delimiter):
STRING_MODEL = re.compile("%(delimiter)s([^%(delimiter)s]*)%(delimiter)s$" % {"delimiter": delimiter})
def get_string(v):
result = STRING_MODEL.match(v)
if result is not None:
return result.group(1)
return None
return get_string
getinteger = gen_get_function(int)
getfloat = gen_get_function(float)
getstring = gen_get_string("'")
getwstring = gen_get_string('"')
SECOND = 1000000
MINUTE = 60 * SECOND
HOUR = 60 * MINUTE
DAY = 24 * HOUR
IEC_TIME_MODEL = re.compile("(?:(?:T|TIME)#)?(-)?(?:(%(float)s)D_?)?(?:(%(float)s)H_?)?(?:(%(float)s)M(?!S)_?)?(?:(%(float)s)S_?)?(?:(%(float)s)MS)?$" % {"float": "[0-9]+(?:\.[0-9]+)?"})
IEC_DATE_MODEL = re.compile("(?:(?:D|DATE)#)?([0-9]{4})-([0-9]{2})-([0-9]{2})$")
IEC_DATETIME_MODEL = re.compile("(?:(?:DT|DATE_AND_TIME)#)?([0-9]{4})-([0-9]{2})-([0-9]{2})-([0-9]{2}):([0-9]{2}):([0-9]{2}(?:\.[0-9]+)?)$")
IEC_TIMEOFDAY_MODEL = re.compile("(?:(?:TOD|TIME_OF_DAY)#)?([0-9]{2}):([0-9]{2}):([0-9]{2}(?:\.[0-9]+)?)$")
def gettime(v):
result = IEC_TIME_MODEL.match(v.upper())
if result is not None:
negative, days, hours, minutes, seconds, milliseconds = result.groups()
microseconds = 0
not_null = False
for value, factor in [(days, DAY),
(hours, HOUR),
(minutes, MINUTE),
(seconds, SECOND),
(milliseconds, 1000)]:
if value is not None:
microseconds += float(value) * factor
not_null = True
if not not_null:
return None
if negative is not None:
microseconds = -microseconds
return datetime.timedelta(microseconds=microseconds)
else:
return None
def getdate(v):
result = IEC_DATE_MODEL.match(v.upper())
if result is not None:
year, month, day = result.groups()
try:
date = datetime.datetime(int(year), int(month), int(day))
except ValueError:
return None
base_date = datetime.datetime(1970, 1, 1)
return date - base_date
else:
return None
def getdatetime(v):
result = IEC_DATETIME_MODEL.match(v.upper())
if result is not None:
year, month, day, hours, minutes, seconds = result.groups()
try:
date = datetime.datetime(int(year), int(month), int(day), int(hours), int(minutes), int(float(seconds)), int((float(seconds) * SECOND) % SECOND))
except ValueError:
return None
base_date = datetime.datetime(1970, 1, 1)
return date - base_date
else:
return None
def gettimeofday(v):
result = IEC_TIMEOFDAY_MODEL.match(v.upper())
if result is not None:
hours, minutes, seconds = result.groups()
microseconds = 0
for value, factor in [(hours, HOUR),
(minutes, MINUTE),
(seconds, SECOND)]:
microseconds += float(value) * factor
return datetime.timedelta(microseconds=microseconds)
else:
return None
GetTypeValue = {"BOOL": lambda x: {"TRUE": True, "FALSE": False, "0": False, "1": True}.get(x.upper(), None),
"SINT": getinteger,
"INT": getinteger,
"DINT": getinteger,
"LINT": getinteger,
"USINT": getinteger,
"UINT": getinteger,
"UDINT": getinteger,
"ULINT": getinteger,
"BYTE": getinteger,
"WORD": getinteger,
"DWORD": getinteger,
"LWORD": getinteger,
"REAL": getfloat,
"LREAL": getfloat,
"STRING": getstring,
"WSTRING": getwstring,
"TIME": gettime,
"DATE": getdate,
"DT": getdatetime,
"TOD": gettimeofday}
# -------------------------------------------------------------------------------
# Force Variable Dialog
# -------------------------------------------------------------------------------
class ForceVariableDialog(wx.TextEntryDialog):
def __init__(self, parent, iec_type, defaultValue=""):
wx.TextEntryDialog.__init__(
self, parent,
message=_("Forcing Variable Value"),
caption=_("Please enter value for a \"%s\" variable:") % iec_type,
defaultValue=defaultValue,
style=wx.OK | wx.CANCEL | wx.CENTRE, pos=wx.DefaultPosition)
self.IEC_Type = iec_type
self.Bind(wx.EVT_BUTTON, self.OnOK,
self.GetSizer().GetItem(2).GetSizer().GetItem(1).
GetSizer().GetAffirmativeButton())
self.ValueTextCtrl = self.GetSizer().GetItem(1).GetWindow()
if self.IEC_Type == "BOOL":
self.ToggleButton = wx.ToggleButton(self, label=_("Toggle value"))
value = GetTypeValue[self.IEC_Type](defaultValue)
if value is not None:
self.ToggleButton.SetValue(value)
border = self.GetSizer().GetItem(1).GetBorder()
self.GetSizer().Insert(before=2, item=self.ToggleButton,
border=border,
flag=wx.LEFT | wx.RIGHT | wx.EXPAND)
self.Bind(wx.EVT_TOGGLEBUTTON, self.ToggleBoolValue, self.ToggleButton)
self.Fit()
def ToggleBoolValue(self, event):
value = self.ToggleButton.GetValue()
self.ValueTextCtrl.SetValue(unicode(value))
def OnOK(self, event):
message = None
value = self.ValueTextCtrl.GetValue()
if value == "":
message = _("You must type a value!")
elif GetTypeValue[self.IEC_Type](value) is None:
message = _("Invalid value \"{a1}\" for \"{a2}\" variable!").format(a1=value, a2=self.IEC_Type)
if message is not None:
dialog = wx.MessageDialog(self, message, _("Error"), wx.OK | wx.ICON_ERROR)
dialog.ShowModal()
dialog.Destroy()
else:
self.EndModal(wx.ID_OK)
event.Skip()
def GetValue(self):
return GetTypeValue[self.IEC_Type](wx.TextEntryDialog.GetValue(self))