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validator4.py
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validator4.py
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import wx
import pprint
about_txt = """Users of this instrument must enter some details about themselves
"""
class DataXferBoolValidator(wx.PyValidator):
def __init__(self, data):
wx.PyValidator.__init__(self)
self.data = data
def Clone(self):
return DataXferBoolValidator(self.data)
def Validate(self,win):
return True
def TransferToWindow(self):
textCtrl = self.GetWindow()
textCtrl.SetValue(self.data.get(self.key, ""))
return True
def TransferFromWindow(self):
textCtrl = self.GetWindow()
self.data[self.key] = textCtrl.GetValue()
return True
class DataXferValidator(wx.PyValidator):
def __init__(self, data, key):
wx.PyValidator.__init__(self)
self.data = data
self.key = key
def Clone(self):
"""
Note that every validator must implement the Clone() method.
"""
return DataXferValidator(self.data, self.key)
def Validate(self, win):
textCtrl = self.GetWindow()
text = textCtrl.GetValue()
if len(text) == 0:
wx.MessageBox("The field highlighted in red must contain some text", "Error")
textCtrl.SetBackgroundColour("red")
textCtrl.SetFocus()
textCtrl.Refresh()
return False
else:
textCtrl.SetBackgroundColour(
wx.SystemSettings_GetColour(wx.SYS_COLOUR_WINDOW))
textCtrl.Refresh()
return True
def TransferToWindow(self):
textCtrl = self.GetWindow()
textCtrl.SetValue(self.data.get(self.key, ""))
return True
def TransferFromWindow(self):
textCtrl = self.GetWindow()
self.data[self.key] = textCtrl.GetValue()
return True
class MyDialog(wx.Dialog):
def __init__(self, data):
wx.Dialog.__init__(self, None, -1, "Validators: data transfer", size=(1000,700),
style =wx.DEFAULT_DIALOG_STYLE ^ (wx.RESIZE_BORDER | wx.MINIMIZE_BOX | wx.MAXIMIZE_BOX | wx.CLOSE_BOX ) )
# Create the text controls
about = wx.StaticText(self, -1, about_txt)
user_l = wx.StaticText(self, -1, "Username:")
labhead_l = wx.StaticText(self, -1, "Lab head:")
chargeacc_l = wx.StaticText(self, -1, "Charging account:")
taskcode_l = wx.StaticText(self, -1, "Task code:")
acctick_l = wx.StaticText(self, -1, "Tick if you don't know your account details: ")
user_t = wx.TextCtrl(self, validator=DataXferValidator(data, "user"))
labhead_t = wx.TextCtrl(self, validator=DataXferValidator(data, "labhead"))
chargeacc_t = wx.TextCtrl(self, validator=DataXferValidator(data, "chargeacc"))
taskcode_t = wx.TextCtrl(self, validator=DataXferValidator(data, "taskcode"))
acctick_t = wx.CheckBox(self)
# Use standard button IDs
okay = wx.Button(self, wx.ID_OK)
okay.SetDefault()
# Layout with sizers
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(about, 0, wx.ALL, 5)
sizer.Add(wx.StaticLine(self), 0, wx.EXPAND|wx.ALL, 5)
fgs = wx.FlexGridSizer(3, 2, 5, 5)
fgs.Add(user_l, 0, wx.ALIGN_RIGHT)
fgs.Add(user_t, 0, wx.EXPAND)
fgs.Add(labhead_l, 0, wx.ALIGN_RIGHT)
fgs.Add(labhead_t, 0, wx.EXPAND)
fgs.Add(chargeacc_l, 0, wx.ALIGN_RIGHT)
fgs.Add(chargeacc_t, 0, wx.EXPAND)
fgs.Add(taskcode_l, 0, wx.ALIGN_RIGHT)
fgs.Add(taskcode_t, 0, wx.EXPAND)
fgs.Add(acctick_l, 0, wx.ALIGN_RIGHT)
fgs.Add(acctick_t, 0, wx.EXPAND)
fgs.AddGrowableCol(1)
sizer.Add(fgs, 0, wx.EXPAND|wx.ALL, 5)
btns = wx.StdDialogButtonSizer()
btns.AddButton(okay)
btns.Realize()
sizer.Add(btns, 0, wx.EXPAND|wx.ALL, 5)
self.SetSizer(sizer)
sizer.Fit(self)
app = wx.PySimpleApp()
data = { "user" : "" }
dlg = MyDialog(data)
dlg.ShowModal()
dlg.Destroy()
wx.MessageBox("You entered these values:\n\n" +
pprint.pformat(data))
app.MainLoop()