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.
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# See COPYING file for copyrights details.
from __future__ import absolute_import
from functools import partial
import wx
from controls.IDBrowser import IDBrowser
class SchemeEditor(wx.Panel):
def __init__(self, scheme, parent, *args, **kwargs):
self.txtctrls = {}
wx.Panel.__init__(self, parent, *args, **kwargs)
self.fieldsizer = wx.FlexGridSizer(cols=2, hgap=10, vgap=10)
if self.EnableIDSelector:
self.model = self.model + [("ID", _("ID:"))]
for tag, label in self.model:
txtctrl = wx.TextCtrl(parent=self, size=wx.Size(200, -1))
self.txtctrls[tag] = txtctrl
for win, flag in [
(wx.StaticText(self, label=label),
wx.ALIGN_CENTER_VERTICAL),
(txtctrl, wx.GROW)]:
self.fieldsizer.AddWindow(win, flag=flag)
self.fieldsizer.AddSpacer(20)
if self.EnableIDSelector:
self.mainsizer = wx.FlexGridSizer(cols=2, hgap=10, vgap=10)
self.mainsizer.AddSizer(self.fieldsizer)
self.idselector = IDBrowser(
self, parent.ctr,
# use a callafter, as editor can be deleted by calling SetURI
partial(wx.CallAfter, parent.SetURI),
self.txtctrls["ID"].SetValue)
self.mainsizer.AddWindow(self.idselector)
self.SetSizer(self.mainsizer)
else:
self.SetSizer(self.fieldsizer)
def SetFields(self, fields):
for tag, _label in self.model:
self.txtctrls[tag].SetValue(fields[tag])
def GetFields(self):
return {tag: self.txtctrls[tag].GetValue() for tag, _label in self.model}