Added the sample code from wxPython In Action to the samples dir

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42925 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

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

@@ -0,0 +1,91 @@
+import wx
+import pprint
+
+about_txt = """\
+The validator used in this example shows how the validator
+can be used to transfer data to and from each text control
+automatically when the dialog is shown and dismissed."""
+
+
+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):
+         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")
+
+        # 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=DataXferValidator(data, "name"))
+        email_t = wx.TextCtrl(self, validator=DataXferValidator(data, "email"))
+        phone_t = wx.TextCtrl(self, validator=DataXferValidator(data, "phone"))
+
+        # 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()
+
+data = { "name" : "Jordyn Dunn" }
+dlg = MyDialog(data)
+dlg.ShowModal()
+dlg.Destroy()
+
+wx.MessageBox("You entered these values:\n\n" +
+              pprint.pformat(data))
+
+app.MainLoop()