beremiz

Fix wxHMI example after upgrading wxGlade

2018-08-13, Andrey Skvortsov
64bb520009f3
Fix wxHMI example after upgrading wxGlade

Newer wxGlade generates code to initialize GridSizer's with empty
elements.

...
grid_sizer_1.Add(self.window_1, 1, wx.ALIGN_CENTER, 0)
sizer_2.Add((0, 0), 0, 0, 0)
sizer_2.Add((0, 0), 0, 0, 0)
sizer_2.Add((0, 0), 0, 0, 0)
sizer_2.Add((0, 0), 0, 0, 0)
...

That causes following traceback, if new buttons are added
to already full sizer.

PLCobject : Traceback (most recent call last):

File "./Beremiz_service.py", line 389, in default_evaluator
res = (tocall(*args, **kwargs), None)

File "/tmp/tmpQS8ct2/runtime_0.py", line 540, in _runtime_0_start
wx.MessageBox(_("Please stop PLC to close"))

File "/tmp/tmpQS8ct2/runtime_0.py", line 504, in Init
lambda axis:( MakeButtonFunc(self, sizer, axis+"axisMinus"),

File "/tmp/tmpQS8ct2/runtime_0.py", line 502, in
lambda btname: MakeButtonFunc(self, sizer, btname), ActionButtons)

File "/tmp/tmpQS8ct2/runtime_0.py", line 461, in MakeButtonFunc
print sizer, btname

File "/usr/lib/python2.7/dist-packages/wx-3.0-gtk3/wx/_core.py", line 14453, in Add
return _core_.Sizer_Add(*args, **kwargs)

PyAssertionError: C++ assertion "Assert failure" failed at
../src/common/sizer.cpp(1401) in DoInsert(): too many items (11 > 2*5)
in grid sizer (maybe you should omit the number of either rows or
columns?)


Tested with wxGlade version 0.8.3
Closes #41
#!/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) 2017: Andrey Skvortsov
#
# 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
import wx.lib.intctrl
class CustomIntUpdatedEvent(wx.PyCommandEvent):
def __init__(self, id, value=0, object=None):
wx.PyCommandEvent.__init__(self, CustomIntCtrl.wxEVT_COMMAND_CUSTOM_INT_UPDATED, id)
self.__value = value
self.SetEventObject(object)
def GetValue(self):
"""Retrieve the value of the control at the time
this event was generated."""
return self.__value
class CustomIntCtrl(wx.lib.intctrl.IntCtrl):
"""
This class provides a control that takes and returns long as
value, and provides bounds support and optional value limiting.
It handles entering negative numbers more user-friendly than
original wx.lib.intctrl.IntCtrl.
It applies limits as focus is changed to other control and
sends event afterwards to signal that editing is done.
"""
# Used to trap events indicating that the current
# integer value of the control has been changed.
wxEVT_COMMAND_CUSTOM_INT_UPDATED = wx.NewEventType()
EVT_CUSTOM_INT = wx.PyEventBinder(wxEVT_COMMAND_CUSTOM_INT_UPDATED, 1)
def __init__(self, *args, **kwargs):
wx.lib.intctrl.IntCtrl.__init__(self, *args, **kwargs)
self.Bind(wx.EVT_KILL_FOCUS, self.UpdateValue)
self.SetLongAllowed(True)
self.SetLimited(False)
def GetValue(self):
"""
Returns integer (long) value of the control,
but handles entering negative numbers
"""
s = wx.TextCtrl.GetValue(self)
if s == '-':
s = ''
return self._fromGUI(s)
def GetValueStr(self):
"""Returns string value of TextCtrl"""
return wx.TextCtrl.GetValue(self)
def UpdateValue(self, event):
self.SetLimited(True)
self.SetLimited(False)
try:
self.GetEventHandler().ProcessEvent(
CustomIntUpdatedEvent(self.GetId(), self.GetValue(), self))
except ValueError:
return
event.Skip()