#!/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.
#
# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
# Copyright (C) 2017: Andrey Skvortsov <andrej.skvortzov@gmail.com>
#
# 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 wx
from graphics.SFC_Objects import SFC_Transition
from dialogs.BlockPreviewDialog import BlockPreviewDialog
# -------------------------------------------------------------------------------
# Set Transition Parameters Dialog
# -------------------------------------------------------------------------------
class SFCTransitionDialog(BlockPreviewDialog):
"""
Class that implements a dialog for defining parameters of a transition graphic
element
"""
def __init__(self, parent, controller, tagname, connection=True):
"""
Constructor
@param parent: Parent wx.Window of dialog for modal
@param controller: Reference to project controller
@param tagname: Tagname of project POU edited
@param connection: True if transition value can be defined by a
connection (default: True)
"""
BlockPreviewDialog.__init__(self, parent, controller, tagname,
title=_('Edit transition'))
# Init common sizers
self._init_sizers(2, 0, 8, None, 2, 1)
# Create label for transition type
type_label = wx.StaticText(self, label=_('Type:'))
self.LeftGridSizer.Add(type_label, flag=wx.GROW)
# Create combo box for selecting reference value
reference = wx.ComboBox(self, style=wx.CB_READONLY)
reference.Append("")
for transition in controller.GetEditedElementTransitions(tagname):
reference.Append(transition)
self.Bind(wx.EVT_COMBOBOX, self.OnReferenceChanged, reference)
# Create Text control for defining inline value
inline = wx.TextCtrl(self)
self.Bind(wx.EVT_TEXT, self.OnInlineChanged, inline)
# Create radio buttons for selecting power rail type
self.TypeRadioButtons = {}
first = True
for type, label, control in [('reference', _('Reference'), reference),
('inline', _('Inline'), inline),
('connection', _('Connection'), None)]:
radio_button = wx.RadioButton(self, label=label,
style=(wx.RB_GROUP if first else 0))
radio_button.SetValue(first)
self.Bind(wx.EVT_RADIOBUTTON, self.OnTypeChanged, radio_button)
self.LeftGridSizer.Add(radio_button, flag=wx.GROW)
if control is not None:
control.Enable(first)
self.LeftGridSizer.Add(control, flag=wx.GROW)
self.TypeRadioButtons[type] = (radio_button, control)
first = False
# Create label for transition priority
priority_label = wx.StaticText(self, label=_('Priority:'))
self.LeftGridSizer.Add(priority_label, flag=wx.GROW)
# Create spin control for defining priority value
self.Priority = wx.SpinCtrl(self, min=0, style=wx.SP_ARROW_KEYS)
self.Bind(wx.EVT_TEXT, self.OnPriorityChanged, self.Priority)
self.LeftGridSizer.Add(self.Priority, flag=wx.GROW)
# Add preview panel and associated label to sizers
self.RightGridSizer.Add(self.PreviewLabel, flag=wx.GROW)
self.RightGridSizer.Add(self.Preview, flag=wx.GROW)
# Add buttons sizer to sizers
self.MainSizer.Add(
self.ButtonSizer, border=20,
flag=wx.ALIGN_RIGHT | wx.BOTTOM | wx.LEFT | wx.RIGHT)
self.Fit()
# Reference radio button is default control having keyboard focus
self.TypeRadioButtons["reference"][0].SetFocus()
def GetTransitionType(self):
"""
Return type selected for SFC transition and associated value
@return: Type selected and associated value (None if no value)
"""
# Go through radio buttons and return type and value associated to the
# one that is selected
for type, (radio, control) in self.TypeRadioButtons.iteritems():
if radio.GetValue():
if isinstance(control, wx.ComboBox):
return type, control.GetStringSelection()
elif isinstance(control, wx.TextCtrl):
return type, control.GetValue()
else:
return type, None
return None, None
def SetValues(self, values):
"""
Set default SFC transition parameters
@param values: Transition parameters values
"""
# Extract transition value according to type
type_value = values.get("value", None)
# For each parameters defined, set corresponding control value
for name, value in values.items():
# Parameter is SFC transition priority
if name == "priority":
self.Priority.SetValue(values["priority"])
# Parameter is SFC transition type
elif name == "type":
for type, (radio, control) in self.TypeRadioButtons.iteritems():
radio.SetValue(type == value)
if control is not None:
# Enable associated control to type and set value
control.Enable(type == value)
if type == value:
if isinstance(control, wx.ComboBox):
control.SetStringSelection(type_value)
elif isinstance(control, wx.TextCtrl):
control.ChangeValue(type_value)
# Refresh preview panel
self.RefreshPreview()
def GetValues(self):
"""
Return SFC transition parameters defined in dialog
@return: {parameter_name: parameter_value,...}
"""
values = {"priority": self.Priority.GetValue()}
values["type"], values["value"] = self.GetTransitionType()
values["width"], values["height"] = self.Element.GetSize()
return values
def OnOK(self, event):
"""
Called when dialog OK button is pressed
Test if parameters defined are valid
@param event: wx.Event from OK button
"""
message = None
# Get transition type and value associated
type, value = self.GetTransitionType()
# Test that value associated to type is defined
if type != "connection" and value == "":
message = _("Form isn't complete. %s must be filled!") % type
# Show error message if an error is detected
if message is not None:
self.ShowErrorMessage(message)
else:
# Call BlockPreviewDialog function
BlockPreviewDialog.OnOK(self, event)
def OnTypeChanged(self, event):
"""
Called when transition type changed
@param event: wx.RadioButtonEvent
"""
# Refresh sensibility of control associated to transition types
for _type, (radio, control) in self.TypeRadioButtons.iteritems():
if control is not None:
control.Enable(radio.GetValue())
# Refresh preview panel
self.RefreshPreview()
event.Skip()
def OnReferenceChanged(self, event):
"""
Called when SFC transition reference value changed
@param event: wx.ComboBoxEvent
"""
self.RefreshPreview()
event.Skip()
def OnInlineChanged(self, event):
"""
Called when SFC transition inline value changed
@param event: wx.TextEvent
"""
self.RefreshPreview()
event.Skip()
def OnPriorityChanged(self, event):
"""
Called when block inputs number changed
@param event: wx.SpinEvent
"""
self.RefreshPreview()
event.Skip()
def DrawPreview(self):
"""
Refresh preview panel of graphic element
Override BlockPreviewDialog function
"""
# Set graphic element displayed, creating a SFC transition
self.Element = SFC_Transition(self.Preview)
self.Element.SetType(*self.GetTransitionType())
self.Element.SetPriority(self.Priority.GetValue())
# Call BlockPreviewDialog function
BlockPreviewDialog.DrawPreview(self)