wxWidgets/wxPython/samples/wxPIA_book/Chapter-09/validator3.py
2006-11-01 22:36:23 +00:00

93 lines
2.6 KiB
Python

import wx
import string
about_txt = """\
The validator used in this example will validate the input on the fly
instead of waiting until the okay button is pressed. The first field
will not allow digits to be typed, the second will allow anything
and the third will not allow alphabetic characters to be entered.
"""
class CharValidator(wx.PyValidator):
def __init__(self, flag):
wx.PyValidator.__init__(self)
self.flag = flag
self.Bind(wx.EVT_CHAR, self.OnChar)
def Clone(self):
"""
Note that every validator must implement the Clone() method.
"""
return CharValidator(self.flag)
def Validate(self, win):
return True
def TransferToWindow(self):
return True
def TransferFromWindow(self):
return True
def OnChar(self, evt):
key = chr(evt.GetKeyCode())
if self.flag == "no-alpha" and key in string.letters:
return
if self.flag == "no-digit" and key in string.digits:
return
evt.Skip()
class MyDialog(wx.Dialog):
def __init__(self):
wx.Dialog.__init__(self, None, -1, "Validators: behavior modification")
# Create the text controls
about = wx.StaticText(self, -1, about_txt)
name_l = wx.StaticText(self, -1, "Name:")
email_l = wx.StaticText(self, -1, "Email:")
phone_l = wx.StaticText(self, -1, "Phone:")
name_t = wx.TextCtrl(self, validator=CharValidator("no-digit"))
email_t = wx.TextCtrl(self, validator=CharValidator("any"))
phone_t = wx.TextCtrl(self, validator=CharValidator("no-alpha"))
# Use standard button IDs
okay = wx.Button(self, wx.ID_OK)
okay.SetDefault()
cancel = wx.Button(self, wx.ID_CANCEL)
# 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(name_l, 0, wx.ALIGN_RIGHT)
fgs.Add(name_t, 0, wx.EXPAND)
fgs.Add(email_l, 0, wx.ALIGN_RIGHT)
fgs.Add(email_t, 0, wx.EXPAND)
fgs.Add(phone_l, 0, wx.ALIGN_RIGHT)
fgs.Add(phone_t, 0, wx.EXPAND)
fgs.AddGrowableCol(1)
sizer.Add(fgs, 0, wx.EXPAND|wx.ALL, 5)
btns = wx.StdDialogButtonSizer()
btns.AddButton(okay)
btns.AddButton(cancel)
btns.Realize()
sizer.Add(btns, 0, wx.EXPAND|wx.ALL, 5)
self.SetSizer(sizer)
sizer.Fit(self)
app = wx.PySimpleApp()
dlg = MyDialog()
dlg.ShowModal()
dlg.Destroy()
app.MainLoop()