SVGHMI: JsonTable now use intermediate variables again to address JSON data without duplicating code or referencing. Using intermediate variables also alows to check for availability of data and stop evaluating early if data is missing. Finally added complete roundtrip example to illustrate use of JSonTable to display "alarms" collected in python from changes on PLC boolean variables.
from __future__ import absolute_import
import wx
from controls.IDBrowser import IDBrowser
class IDManager(wx.Dialog):
def __init__(self, parent, ctr):
self.ctr = ctr
wx.Dialog.__init__(self,
name='IDManager', parent=parent,
title=_('URI Editor'),
style=wx.DEFAULT_DIALOG_STYLE | wx.RESIZE_BORDER,
size=(800, 600))
# start IDBrowser in manager mode
self.browser = IDBrowser(self, ctr)
self.Bind(wx.EVT_CHAR_HOOK, self.OnEscapeKey)
def OnEscapeKey(self, event):
keycode = event.GetKeyCode()
if keycode == wx.WXK_ESCAPE:
self.EndModal(wx.ID_CANCEL)
else:
event.Skip()