wxPython/samples/wxPIA_book/Chapter-09/validator2.py

   1 import wx
   2 import pprint
   3
   4 about_txt = """\
   5 The validator used in this example shows how the validator
   6 can be used to transfer data to and from each text control
   7 automatically when the dialog is shown and dismissed."""
   8
   9
  10 class DataXferValidator(wx.PyValidator):
  11      def __init__(self, data, key):
  12          wx.PyValidator.__init__(self)
  13          self.data = data
  14          self.key = key
  15
  16      def Clone(self):
  17          """
  18          Note that every validator must implement the Clone() method.
  19          """
  20          return DataXferValidator(self.data, self.key)
  21
  22      def Validate(self, win):
  23          return True
  24
  25      def TransferToWindow(self):
  26          textCtrl = self.GetWindow()
  27          textCtrl.SetValue(self.data.get(self.key, ""))
  28          return True
  29
  30      def TransferFromWindow(self):
  31          textCtrl = self.GetWindow()
  32          self.data[self.key] = textCtrl.GetValue()
  33          return True
  34
  35
  36
  37 class MyDialog(wx.Dialog):
  38     def __init__(self, data):
  39         wx.Dialog.__init__(self, None, -1, "Validators: data transfer")
  40
  41         # Create the text controls
  42         about   = wx.StaticText(self, -1, about_txt)
  43         name_l  = wx.StaticText(self, -1, "Name:")
  44         email_l = wx.StaticText(self, -1, "Email:")
  45         phone_l = wx.StaticText(self, -1, "Phone:")
  46
  47         name_t  = wx.TextCtrl(self, validator=DataXferValidator(data, "name"))
  48         email_t = wx.TextCtrl(self, validator=DataXferValidator(data, "email"))
  49         phone_t = wx.TextCtrl(self, validator=DataXferValidator(data, "phone"))
  50
  51         # Use standard button IDs
  52         okay   = wx.Button(self, wx.ID_OK)
  53         okay.SetDefault()
  54         cancel = wx.Button(self, wx.ID_CANCEL)
  55
  56         # Layout with sizers
  57         sizer = wx.BoxSizer(wx.VERTICAL)
  58         sizer.Add(about, 0, wx.ALL, 5)
  59         sizer.Add(wx.StaticLine(self), 0, wx.EXPAND|wx.ALL, 5)
  60
  61         fgs = wx.FlexGridSizer(3, 2, 5, 5)
  62         fgs.Add(name_l, 0, wx.ALIGN_RIGHT)
  63         fgs.Add(name_t, 0, wx.EXPAND)
  64         fgs.Add(email_l, 0, wx.ALIGN_RIGHT)
  65         fgs.Add(email_t, 0, wx.EXPAND)
  66         fgs.Add(phone_l, 0, wx.ALIGN_RIGHT)
  67         fgs.Add(phone_t, 0, wx.EXPAND)
  68         fgs.AddGrowableCol(1)
  69         sizer.Add(fgs, 0, wx.EXPAND|wx.ALL, 5)
  70
  71         btns = wx.StdDialogButtonSizer()
  72         btns.AddButton(okay)
  73         btns.AddButton(cancel)
  74         btns.Realize()
  75         sizer.Add(btns, 0, wx.EXPAND|wx.ALL, 5)
  76
  77         self.SetSizer(sizer)
  78         sizer.Fit(self)
  79
  80
  81 app = wx.PySimpleApp()
  82
  83 data = { "name" : "Jordyn Dunn" }
  84 dlg = MyDialog(data)
  85 dlg.ShowModal()
  86 dlg.Destroy()
  87
  88 wx.MessageBox("You entered these values:\n\n" +
  89               pprint.pformat(data))
  90
  91 app.MainLoop()