Implemented the first phase of OOR (Original Object Return). See the

text in the demo for more details of what this means, but in a
nutshell methods such as wxWindow.GetParent or FindWindowById will now
return a shadow object of the proper type if it can.  By "proper type"
I mean that if the wxWindow pointer returned from FindWindowById
really points to a wxButton then the Python object constructed will be
of a wxButtonPtr class instead of wxWindowPtr as before.  This should
reduce or eliminiate the need for wxPyTypeCast.  (Woo Hoo!)  The
objects returned are still not the original Python object, but that is
the next step.  (Although it will probably only work on Python 2.1 and
beyond because it will use weak references.)

A few other minor tweaks and fixes and additions for things found
while doing the OOR stuff.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10197 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/demo/wxValidator.py

@@ -19,8 +19,7 @@ class MyValidator(wxPyValidator):
         return MyValidator(self.flag)
 
     def Validate(self, win):
-        print 'validate'
-        tc = wxPyTypeCast(win, "wxTextCtrl")
+        tc = self.GetWindow()
         val = tc.GetValue()
         if self.flag == ALPHA_ONLY:
             for x in val:
@@ -81,11 +80,118 @@ class TestValidatorPanel(wxPanel):
         fgs.Add(label, 0, wxALIGN_RIGHT|wxCENTER)
         fgs.Add(wxTextCtrl(self, -1, "", validator = MyValidator(DIGIT_ONLY)))
 
+        fgs.Add(1,VSPACE); fgs.Add(1,VSPACE)
+        fgs.Add(1,VSPACE); fgs.Add(1,VSPACE)
+        fgs.Add(0,0)
+        b = wxButton(self, -1, "Test Dialog Validation")
+        EVT_BUTTON(self, b.GetId(), self.OnDoDialog)
+        fgs.Add(b)
+
         border = wxBoxSizer()
         border.Add(fgs, 1, wxGROW|wxALL, 25)
         self.SetSizer(border)
         self.Layout()
 
+    def OnDoDialog(self, evt):
+        dlg = TestValidateDialog(self)
+        dlg.ShowModal()
+        dlg.Destroy()
+
+
+#----------------------------------------------------------------------
+
+class TextObjectValidator(wxPyValidator):
+     """ This validator is used to ensure that the user has entered something
+         into the text object editor dialog's text field.
+     """
+     def __init__(self):
+         """ Standard constructor.
+         """
+         wxPyValidator.__init__(self)
+
+
+
+     def Clone(self):
+         """ Standard cloner.
+
+             Note that every validator must implement the Clone() method.
+         """
+         return TextObjectValidator()
+
+
+     def Validate(self, win):
+         """ Validate the contents of the given text control.
+         """
+         textCtrl = self.GetWindow()
+         text = textCtrl.GetValue()
+
+         if len(text) == 0:
+             wxMessageBox("A text object must contain some text!", "Error")
+             textCtrl.SetFocus()
+             return false
+         else:
+             return true
+
+
+     def TransferToWindow(self):
+         """ Transfer data from validator to window.
+
+             The default implementation returns false, indicating that an error
+             occurred.  We simply return true, as we don't do any data transfer.
+         """
+         return true # Prevent wxDialog from complaining.
+
+
+     def TransferFromWindow(self):
+         """ Transfer data from window to validator.
+
+             The default implementation returns false, indicating that an error
+             occurred.  We simply return true, as we don't do any data transfer.
+         """
+         return true # Prevent wxDialog from complaining.
+
+#----------------------------------------------------------------------
+
+class TestValidateDialog(wxDialog):
+    def __init__(self, parent):
+        wxDialog.__init__(self, parent, -1, "Validated Dialog")
+
+        self.SetAutoLayout(true)
+        VSPACE = 10
+
+        fgs = wxFlexGridSizer(0, 2)
+
+        fgs.Add(1,1);
+        fgs.Add(wxStaticText(self, -1,
+                             "These controls must have text entered into them.  Each\n"
+                             "one has a validator that is checked when the Okay\n"
+                             "button is clicked."))
+
+        fgs.Add(1,VSPACE); fgs.Add(1,VSPACE)
+
+        label = wxStaticText(self, -1, "First: ")
+        fgs.Add(label, 0, wxALIGN_RIGHT|wxCENTER)
+
+        fgs.Add(wxTextCtrl(self, -1, "", validator = TextObjectValidator()))
+
+        fgs.Add(1,VSPACE); fgs.Add(1,VSPACE)
+
+        label = wxStaticText(self, -1, "Second: ")
+        fgs.Add(label, 0, wxALIGN_RIGHT|wxCENTER)
+        fgs.Add(wxTextCtrl(self, -1, "", validator = TextObjectValidator()))
+
+
+        buttons = wxBoxSizer(wxHORIZONTAL)
+        buttons.Add(wxButton(self, wxID_OK, "Okay"), 0, wxALL, 10)
+        buttons.Add(wxButton(self, wxID_CANCEL, "Cancel"), 0, wxALL, 10)
+
+        border = wxBoxSizer(wxVERTICAL)
+        border.Add(fgs, 1, wxGROW|wxALL, 25)
+        border.Add(buttons)
+        self.SetSizer(border)
+        border.Fit(self)
+        self.Layout()
+
 
 #----------------------------------------------------------------------