HGKeeper

#!/usr/bin/env python

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

# This file is part of Beremiz, a Integrated Development Environment for

# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.

# 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.

import wx

from plcopen.structures import TestIdentifier, IEC_KEYWORDS

def GetPouTypes():

_ = lambda x : x

return [_("function"), _("functionBlock"), _("program")]

POU_TYPES_DICT = dict([(_(pou_type), pou_type) for pou_type in GetPouTypes()])

def GetPouLanguages():

_ = lambda x : x

return [_("IL"), _("ST"), _("LD"), _("FBD"), _("SFC")]

class PouDialog(wx.Dialog):

POU_LANGUAGES = GetPouLanguages()

POU_LANGUAGES_DICT = dict([(_(language), language) for language in POU_LANGUAGES])

def __init__(self, parent, pou_type = None):

wx.Dialog.__init__(self, id=-1, parent=parent,

name='PouDialog', title=_('Create a new POU'),

size=wx.Size(300, 200), style=wx.DEFAULT_DIALOG_STYLE)

self.SetClientSize(wx.Size(300, 200))

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

main_sizer.AddGrowableCol(0)

main_sizer.AddGrowableRow(0)

infos_sizer = wx.FlexGridSizer(cols=2, hgap=5, rows=3, vgap=15)

infos_sizer.AddGrowableCol(1)

main_sizer.AddSizer(infos_sizer, border=20,

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

pouname_label = wx.StaticText(self, label=_('POU Name:'))

infos_sizer.AddWindow(pouname_label, border=4,

flag=wx.ALIGN_CENTER_VERTICAL|wx.TOP)

self.PouName = wx.TextCtrl(self)

infos_sizer.AddWindow(self.PouName, flag=wx.GROW)

poutype_label = wx.StaticText(self, label=_('POU Type:'))

infos_sizer.AddWindow(poutype_label, border=4,

flag=wx.ALIGN_CENTER_VERTICAL|wx.TOP)

self.PouType = wx.ComboBox(self, style=wx.CB_READONLY)

self.Bind(wx.EVT_COMBOBOX, self.OnTypeChanged, self.PouType)

infos_sizer.AddWindow(self.PouType, flag=wx.GROW)

language_label = wx.StaticText(self, label=_('Language:'))

infos_sizer.AddWindow(language_label, border=4,

flag=wx.ALIGN_CENTER_VERTICAL|wx.TOP)

self.Language = wx.ComboBox(self, style=wx.CB_READONLY)

infos_sizer.AddWindow(self.Language, flag=wx.GROW)

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 option in GetPouTypes():

self.PouType.Append(_(option))

if pou_type is not None:

self.PouType.SetStringSelection(_(pou_type))

self.RefreshLanguage()

self.PouNames = []

self.PouElementNames = []

def OnOK(self, event):

error = []

pou_name = self.PouName.GetValue()

if pou_name == "":

error.append(_("POU Name"))

if self.PouType.GetSelection() == -1:

error.append(_("POU Type"))

if self.Language.GetSelection() == -1:

error.append(_("Language"))

message = None

question = False

if len(error) > 0:

text = ""

for i, item in enumerate(error):

if i == 0:

text += item

elif i == len(error) - 1:

text += _(" and %s")%item

else:

text += _(", %s")%item

message = _("Form isn't complete. %s must be filled!") % text

elif not TestIdentifier(pou_name):

message = _("\"%s\" is not a valid identifier!") % pou_name

elif pou_name.upper() in IEC_KEYWORDS:

message = _("\"%s\" is a keyword. It can't be used!") % pou_name

elif pou_name.upper() in self.PouNames:

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

elif pou_name.upper() in self.PouElementNames:

message = _("A POU has an element named \"%s\". This could cause a conflict. Do you wish to continue?") % pou_name

question = True

if message is not None:

if question:

dialog = wx.MessageDialog(self, message, _("Warning"), wx.YES_NO|wx.ICON_EXCLAMATION)

result = dialog.ShowModal()

dialog.Destroy()

if result == wx.ID_YES:

self.EndModal(wx.ID_OK)

else:

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

dialog.ShowModal()

dialog.Destroy()

else:

self.EndModal(wx.ID_OK)

def RefreshLanguage(self):

selection = self.POU_LANGUAGES_DICT.get(self.Language.GetStringSelection(), "")

self.Language.Clear()

for language in self.POU_LANGUAGES:

if language != "SFC" or POU_TYPES_DICT[self.PouType.GetStringSelection()] != "function":

self.Language.Append(_(language))

if self.Language.FindString(_(selection)) != wx.NOT_FOUND:

self.Language.SetStringSelection(_(selection))

def OnTypeChanged(self, event):

self.RefreshLanguage()

event.Skip()

def SetPouNames(self, pou_names):

self.PouNames = [pou_name.upper() for pou_name in pou_names]

def SetPouElementNames(self, element_names):

self.PouElementNames = [element_name.upper() for element_name in element_names]

def SetValues(self, values):

for item, value in values.items():

if item == "pouName":

self.PouName.SetValue(value)

elif item == "pouType":

self.PouType.SetStringSelection(_(value))

elif item == "language":

self.Language.SetStringSelection(_(value))

def GetValues(self):

values = {}

values["pouName"] = self.PouName.GetValue()

values["pouType"] = POU_TYPES_DICT[self.PouType.GetStringSelection()]

values["language"] = self.POU_LANGUAGES_DICT[self.Language.GetStringSelection()]

return values

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