As per the wx-dev discussion in early Jan, replaced

wxWindow::m_parentSizer with m_containingSizer which is used to track
which sizer this window is a member of.  Windows will now remove
themselves from a sizer when destroyed.  Also added accessors so
window classes can find out if they are in a sizer and do things like
reset their min size, etc.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@14221 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/docs/latex/wx/window.tex b/docs/latex/wx/window.tex
index 01e98faf26fedd323585d6f522ec08e2866f3752..2eefeb2c3c42f38dfc325bfac97b2558b0e78260 100644 (file)
--- a/docs/latex/wx/window.tex
+++ b/docs/latex/wx/window.tex
@@ -564,6 +564,13 @@ implements the following methods:\par
 
 Returns a pointer to the window's layout constraints, or NULL if there are none.
 
 
 Returns a pointer to the window's layout constraints, or NULL if there are none.
 

+\membersection{wxWindow::GetContainingSizer}\label{wxwindowgetcontainingsizer}
+
+\constfunc{const wxSizer *}{GetContainingSizer}{\void}
+
+Return the sizer that this window is a member of, if any, otherwise
+{\tt NULL}.
+

 \membersection{wxWindow::GetDropTarget}\label{wxwindowgetdroptarget}
 
 \constfunc{wxDropTarget*}{GetDropTarget}{\void}
 \membersection{wxWindow::GetDropTarget}\label{wxwindowgetdroptarget}
 
 \constfunc{wxDropTarget*}{GetDropTarget}{\void}


@@ -812,9 +819,11 @@ method:\par
 
 \constfunc{const wxSizer *}{GetSizer}{\void}
 
 
 \constfunc{const wxSizer *}{GetSizer}{\void}
 

-Return the sizer associated with the window by a previous call to 
+Return the sizer associated with the window by a previous call to

 \helpref{SetSizer()}{wxwindowsetsizer} or {\tt NULL}.
 
 \helpref{SetSizer()}{wxwindowsetsizer} or {\tt NULL}.
 

+\membersection{wxWindow::GetTextExtent}\label{wxwindowgettextextent}
+

 \constfunc{virtual void}{GetTextExtent}{\param{const wxString\& }{string}, \param{int* }{x}, \param{int* }{y},
  \param{int* }{descent = NULL}, \param{int* }{externalLeading = NULL},
  \param{const wxFont* }{font = NULL}, \param{bool}{ use16 = {\tt FALSE}}}
 \constfunc{virtual void}{GetTextExtent}{\param{const wxString\& }{string}, \param{int* }{x}, \param{int* }{y},
  \param{int* }{descent = NULL}, \param{int* }{externalLeading = NULL},
  \param{const wxFont* }{font = NULL}, \param{bool}{ use16 = {\tt FALSE}}}


@@ -1927,8 +1936,8 @@ Sets the accelerator table for this window. See \helpref{wxAcceleratorTable}{wxa
 \func{void}{SetAutoLayout}{\param{bool}{ autoLayout}}
 
 Determines whether the \helpref{wxWindow::Layout}{wxwindowlayout} function will
 \func{void}{SetAutoLayout}{\param{bool}{ autoLayout}}
 
 Determines whether the \helpref{wxWindow::Layout}{wxwindowlayout} function will

-be called automatically when the window is resized. Use in connection with 
-\helpref{wxWindow::SetSizer}{wxwindowsetsizer} and 
+be called automatically when the window is resized. Use in connection with
+\helpref{wxWindow::SetSizer}{wxwindowsetsizer} and

 \helpref{wxWindow::SetConstraints}{wxwindowsetconstraints} for laying out
 subwindows.
 
 \helpref{wxWindow::SetConstraints}{wxwindowsetconstraints} for laying out
 subwindows.
 


@@ -2007,6 +2016,14 @@ implements the following methods:\par
 \end{twocollist}}
 }
 
 \end{twocollist}}
 }
 

+\membersection{wxWindow::SetContainingSizer}\label{wxwindowsetcontainingsizer}
+
+\func{void}{SetContainingSizer}{\param{wxSizer* }{sizer}}
+
+This normally does not need to be called by user code.  It is called
+when a window is added to a sizer, and is used so the window can
+remove itself from the sizer when it is destroyed.
+

 \membersection{wxWindow::SetCursor}\label{wxwindowsetcursor}
 
 \func{virtual void}{SetCursor}{\param{const wxCursor\&}{cursor}}
 \membersection{wxWindow::SetCursor}\label{wxwindowsetcursor}
 
 \func{virtual void}{SetCursor}{\param{const wxCursor\&}{cursor}}


@@ -2107,7 +2124,7 @@ window if it has this style flag set.}
 events are propagared upwards to the window parent recursively until a handler
 for them is found. Using this style allows to prevent them from being
 propagated beyond this window. Notice that wxDialog has this style on by
 events are propagared upwards to the window parent recursively until a handler
 for them is found. Using this style allows to prevent them from being
 propagated beyond this window. Notice that wxDialog has this style on by

-default for the reasons explained in the 
+default for the reasons explained in the

 \helpref{event processing overview}{eventprocessing}.}
 \twocolitem{\windowstyle{wxWS\_EX\_TRANSIENT}}{This can be used to prevent a
 window from being used as an implicit parent for the dialogs which were
 \helpref{event processing overview}{eventprocessing}.}
 \twocolitem{\windowstyle{wxWS\_EX\_TRANSIENT}}{This can be used to prevent a
 window from being used as an implicit parent for the dialogs which were


@@ -2117,7 +2134,7 @@ any moment as creating childs of such windows results in fatal problems.}
 caption. When pressed, Windows will go into a context-sensitive help mode and wxWindows will send
 a wxEVT\_HELP event if the user clicked on an application window.
 This style cannot be used together with wxMAXIMIZE\_BOX or wxMINIMIZE\_BOX, so
 caption. When pressed, Windows will go into a context-sensitive help mode and wxWindows will send
 a wxEVT\_HELP event if the user clicked on an application window.
 This style cannot be used together with wxMAXIMIZE\_BOX or wxMINIMIZE\_BOX, so

-you should use the style of 
+you should use the style of

 {\tt wxDEFAULT\_FRAME\_STYLE & ~(wxMINIMIZE\_BOX | wxMAXIMIZE\_BOX)} for the
 frames having this style (the dialogs don't have minimize nor maximize box by
 default)}
 {\tt wxDEFAULT\_FRAME\_STYLE & ~(wxMINIMIZE\_BOX | wxMAXIMIZE\_BOX)} for the
 frames having this style (the dialogs don't have minimize nor maximize box by
 default)}


@@ -2550,7 +2567,7 @@ See \helpref{Window styles}{windowstyles} for more information about flags.
 
 \func{virtual bool}{Show}{\param{bool}{ show = {\tt TRUE}}}
 
 
 \func{virtual bool}{Show}{\param{bool}{ show = {\tt TRUE}}}
 

-Shows or hides the window. You may need to call \helpref{Raise}{wxwindowraise} 
+Shows or hides the window. You may need to call \helpref{Raise}{wxwindowraise}

 for a top level window if you want to bring it to top, although this is not
 needed if Show() is called immediately after the frame creation.
 
 for a top level window if you want to bring it to top, although this is not
 needed if Show() is called immediately after the frame creation.
 


@@ -2571,7 +2588,7 @@ done because it already was in the requested state.
 
 \func{virtual void}{Thaw}{\void}
 
 
 \func{virtual void}{Thaw}{\void}
 

-Reenables window updating after a previous call to 
+Reenables window updating after a previous call to

 \helpref{Freeze}{wxwindowfreeze}.
 
 \membersection{wxWindow::TransferDataFromWindow}\label{wxwindowtransferdatafromwindow}
 \helpref{Freeze}{wxwindowfreeze}.
 
 \membersection{wxWindow::TransferDataFromWindow}\label{wxwindowtransferdatafromwindow}

diff --git a/include/wx/window.h b/include/wx/window.h
index c7cbaa4611cfdf6637f27964550d51a44a77b111..fcb1ec05dfebd0d431cbe9a262a4164c408ff861 100644 (file)
--- a/include/wx/window.h
+++ b/include/wx/window.h
@@ -734,9 +734,13 @@ public:
     virtual void GetPositionConstraint(int *x, int *y) const ;
 
         // sizers
     virtual void GetPositionConstraint(int *x, int *y) const ;
 
         // sizers

-        // TODO: what are they and how do they work??

     void SetSizer( wxSizer *sizer );
     wxSizer *GetSizer() const { return m_windowSizer; }
     void SetSizer( wxSizer *sizer );
     wxSizer *GetSizer() const { return m_windowSizer; }

+
+    // Track if this window is a member of a sizer
+    void SetContainingSizer(wxSizer* sizer) { m_containingSizer = sizer; }
+    wxSizer *GetContainingSizer() const { return m_containingSizer; }
+

 #endif // wxUSE_CONSTRAINTS
 
     // backward compatibility
 #endif // wxUSE_CONSTRAINTS
 
     // backward compatibility


@@ -840,10 +844,11 @@ protected:
     // constraints this window is involved in
     wxWindowList        *m_constraintsInvolvedIn;
 
     // constraints this window is involved in
     wxWindowList        *m_constraintsInvolvedIn;
 

-    // top level and the parent sizers
-    // TODO what's this and how does it work?)
+    // this window's sizer

     wxSizer             *m_windowSizer;
     wxSizer             *m_windowSizer;

-    wxWindowBase        *m_sizerParent;
+
+    // The sizer this window is a member of, if any
+    wxSizer             *m_containingSizer;

 
     // Layout() window automatically when its size changes?
     bool                 m_autoLayout:1;
 
     // Layout() window automatically when its size changes?
     bool                 m_autoLayout:1;


@@ -923,7 +928,7 @@ protected:
     // capture/release the mouse, used by Capture/ReleaseMouse()
     virtual void DoCaptureMouse() = 0;
     virtual void DoReleaseMouse() = 0;
     // capture/release the mouse, used by Capture/ReleaseMouse()
     virtual void DoCaptureMouse() = 0;
     virtual void DoReleaseMouse() = 0;

-    
+

     // retrieve the position/size of the window
     virtual void DoGetPosition( int *x, int *y ) const = 0;
     virtual void DoGetSize( int *width, int *height ) const = 0;
     // retrieve the position/size of the window
     virtual void DoGetPosition( int *x, int *y ) const = 0;
     virtual void DoGetSize( int *width, int *height ) const = 0;

diff --git a/src/common/sizer.cpp b/src/common/sizer.cpp
index d11c537e32c22f34e63370c3ab3c55a5d5b0cc28..f3a5d5a04ff344729d3430c084db9bd7f81a3b03 100644 (file)
--- a/src/common/sizer.cpp
+++ b/src/common/sizer.cpp
@@ -236,7 +236,7 @@ void wxSizerItem::DeleteWindows()
 {
     if (m_window)
          m_window->Destroy();
 {
     if (m_window)
          m_window->Destroy();

-         
+

     if (m_sizer)
         m_sizer->DeleteWindows();
 }
     if (m_sizer)
         m_sizer->DeleteWindows();
 }


@@ -269,11 +269,13 @@ wxSizer::wxSizer()
 
 wxSizer::~wxSizer()
 {
 
 wxSizer::~wxSizer()
 {

+    Clear();

 }
 
 void wxSizer::Add( wxWindow *window, int option, int flag, int border, wxObject* userData )
 {
     m_children.Append( new wxSizerItem( window, option, flag, border, userData ) );
 }
 
 void wxSizer::Add( wxWindow *window, int option, int flag, int border, wxObject* userData )
 {
     m_children.Append( new wxSizerItem( window, option, flag, border, userData ) );

+    window->SetContainingSizer(this);

 }
 
 void wxSizer::Add( wxSizer *sizer, int option, int flag, int border, wxObject* userData )
 }
 
 void wxSizer::Add( wxSizer *sizer, int option, int flag, int border, wxObject* userData )


@@ -289,6 +291,7 @@ void wxSizer::Add( int width, int height, int option, int flag, int border, wxOb
 void wxSizer::Prepend( wxWindow *window, int option, int flag, int border, wxObject* userData )
 {
     m_children.Insert( new wxSizerItem( window, option, flag, border, userData ) );
 void wxSizer::Prepend( wxWindow *window, int option, int flag, int border, wxObject* userData )
 {
     m_children.Insert( new wxSizerItem( window, option, flag, border, userData ) );

+    window->SetContainingSizer(this);

 }
 
 void wxSizer::Prepend( wxSizer *sizer, int option, int flag, int border, wxObject* userData )
 }
 
 void wxSizer::Prepend( wxSizer *sizer, int option, int flag, int border, wxObject* userData )


@@ -304,6 +307,7 @@ void wxSizer::Prepend( int width, int height, int option, int flag, int border,
 void wxSizer::Insert( int before, wxWindow *window, int option, int flag, int border, wxObject* userData )
 {
     m_children.Insert( before, new wxSizerItem( window, option, flag, border, userData ) );
 void wxSizer::Insert( int before, wxWindow *window, int option, int flag, int border, wxObject* userData )
 {
     m_children.Insert( before, new wxSizerItem( window, option, flag, border, userData ) );

+    window->SetContainingSizer(this);

 }
 
 void wxSizer::Insert( int before, wxSizer *sizer, int option, int flag, int border, wxObject* userData )
 }
 
 void wxSizer::Insert( int before, wxSizer *sizer, int option, int flag, int border, wxObject* userData )


@@ -326,6 +330,7 @@ bool wxSizer::Remove( wxWindow *window )
         wxSizerItem *item = (wxSizerItem*)node->Data();
         if (item->GetWindow() == window)
         {
         wxSizerItem *item = (wxSizerItem*)node->Data();
         if (item->GetWindow() == window)
         {

+            item->GetWindow()->SetContainingSizer(NULL);

             m_children.DeleteNode( node );
             return TRUE;
         }
             m_children.DeleteNode( node );
             return TRUE;
         }


@@ -366,9 +371,21 @@ bool wxSizer::Remove( int pos )
 
 void wxSizer::Clear( bool delete_windows )
 {
 
 void wxSizer::Clear( bool delete_windows )
 {

+    // First clear the ContainingSizer pointers
+    wxNode *node = m_children.First();
+    while (node)
+    {
+        wxSizerItem *item = (wxSizerItem*)node->Data();
+        if (item->IsWindow())
+            item->GetWindow()->SetContainingSizer(NULL);
+        node = node->Next();
+    }
+
+    // Destroy the windows if needed

     if (delete_windows)
         DeleteWindows();
     if (delete_windows)
         DeleteWindows();

-        
+
+    // Now empty the list

     m_children.Clear();
 }
 
     m_children.Clear();
 }
 

diff --git a/src/common/wincmn.cpp b/src/common/wincmn.cpp
index 7780dbd2a7b02860d54a21f71bc6b9eabbe89f29..6ffcaea012b9827bec575611f260bcc6d0c7315c 100644 (file)
--- a/src/common/wincmn.cpp
+++ b/src/common/wincmn.cpp
@@ -152,6 +152,7 @@ void wxWindowBase::InitBase()
     m_constraints = (wxLayoutConstraints *) NULL;
     m_constraintsInvolvedIn = (wxWindowList *) NULL;
     m_windowSizer = (wxSizer *) NULL;
     m_constraints = (wxLayoutConstraints *) NULL;
     m_constraintsInvolvedIn = (wxWindowList *) NULL;
     m_windowSizer = (wxSizer *) NULL;

+    m_containingSizer = (wxSizer *) NULL;

     m_autoLayout = FALSE;
 #endif // wxUSE_CONSTRAINTS
 
     m_autoLayout = FALSE;
 #endif // wxUSE_CONSTRAINTS
 


@@ -257,6 +258,9 @@ wxWindowBase::~wxWindowBase()
         m_constraints = NULL;
     }
 
         m_constraints = NULL;
     }
 

+    if ( m_containingSizer )
+        m_containingSizer->Remove((wxWindow*)this);
+

     if ( m_windowSizer )
         delete m_windowSizer;
 
     if ( m_windowSizer )
         delete m_windowSizer;
 

diff --git a/wxPython/src/msw/windows.cpp b/wxPython/src/msw/windows.cpp
index e6b6f18e44e99f6493e802122d1aad02d362fd99..007e8a95dd9cb777c5ccc4110d5bf4fed2feb65c 100644 (file)
--- a/wxPython/src/msw/windows.cpp
+++ b/wxPython/src/msw/windows.cpp
@@ -5282,6 +5282,71 @@ static PyObject *_wrap_wxWindow_GetSizer(PyObject *self, PyObject *args, PyObjec
     return _resultobj;
 }
 
     return _resultobj;
 }
 

+#define wxWindow_SetContainingSizer(_swigobj,_swigarg0)  (_swigobj->SetContainingSizer(_swigarg0))
+static PyObject *_wrap_wxWindow_SetContainingSizer(PyObject *self, PyObject *args, PyObject *kwargs) {
+    PyObject * _resultobj;
+    wxWindow * _arg0;
+    wxSizer * _arg1;
+    PyObject * _argo0 = 0;
+    PyObject * _argo1 = 0;
+    char *_kwnames[] = { "self","sizer", NULL };
+
+    self = self;
+    if(!PyArg_ParseTupleAndKeywords(args,kwargs,"OO:wxWindow_SetContainingSizer",_kwnames,&_argo0,&_argo1)) 
+        return NULL;
+    if (_argo0) {
+        if (_argo0 == Py_None) { _arg0 = NULL; }
+        else if (SWIG_GetPtrObj(_argo0,(void **) &_arg0,"_wxWindow_p")) {
+            PyErr_SetString(PyExc_TypeError,"Type error in argument 1 of wxWindow_SetContainingSizer. Expected _wxWindow_p.");
+        return NULL;
+        }
+    }
+    if (_argo1) {
+        if (_argo1 == Py_None) { _arg1 = NULL; }
+        else if (SWIG_GetPtrObj(_argo1,(void **) &_arg1,"_wxSizer_p")) {
+            PyErr_SetString(PyExc_TypeError,"Type error in argument 2 of wxWindow_SetContainingSizer. Expected _wxSizer_p.");
+        return NULL;
+        }
+    }
+{
+    PyThreadState* __tstate = wxPyBeginAllowThreads();
+        wxWindow_SetContainingSizer(_arg0,_arg1);
+
+    wxPyEndAllowThreads(__tstate);
+    if (PyErr_Occurred()) return NULL;
+}    Py_INCREF(Py_None);
+    _resultobj = Py_None;
+    return _resultobj;
+}
+
+#define wxWindow_GetContainingSizer(_swigobj)  (_swigobj->GetContainingSizer())
+static PyObject *_wrap_wxWindow_GetContainingSizer(PyObject *self, PyObject *args, PyObject *kwargs) {
+    PyObject * _resultobj;
+    wxSizer * _result;
+    wxWindow * _arg0;
+    PyObject * _argo0 = 0;
+    char *_kwnames[] = { "self", NULL };
+
+    self = self;
+    if(!PyArg_ParseTupleAndKeywords(args,kwargs,"O:wxWindow_GetContainingSizer",_kwnames,&_argo0)) 
+        return NULL;
+    if (_argo0) {
+        if (_argo0 == Py_None) { _arg0 = NULL; }
+        else if (SWIG_GetPtrObj(_argo0,(void **) &_arg0,"_wxWindow_p")) {
+            PyErr_SetString(PyExc_TypeError,"Type error in argument 1 of wxWindow_GetContainingSizer. Expected _wxWindow_p.");
+        return NULL;
+        }
+    }
+{
+    PyThreadState* __tstate = wxPyBeginAllowThreads();
+        _result = (wxSizer *)wxWindow_GetContainingSizer(_arg0);
+
+    wxPyEndAllowThreads(__tstate);
+    if (PyErr_Occurred()) return NULL;
+}{ _resultobj = wxPyMake_wxSizer(_result); }
+    return _resultobj;
+}
+

 #define wxWindow_GetValidator(_swigobj)  (_swigobj->GetValidator())
 static PyObject *_wrap_wxWindow_GetValidator(PyObject *self, PyObject *args, PyObject *kwargs) {
     PyObject * _resultobj;
 #define wxWindow_GetValidator(_swigobj)  (_swigobj->GetValidator())
 static PyObject *_wrap_wxWindow_GetValidator(PyObject *self, PyObject *args, PyObject *kwargs) {
     PyObject * _resultobj;


@@ -10896,6 +10961,8 @@ static PyMethodDef windowscMethods[] = {
         { "wxWindow_SetDropTarget", (PyCFunction) _wrap_wxWindow_SetDropTarget, METH_VARARGS | METH_KEYWORDS },
         { "wxWindow_SetValidator", (PyCFunction) _wrap_wxWindow_SetValidator, METH_VARARGS | METH_KEYWORDS },
         { "wxWindow_GetValidator", (PyCFunction) _wrap_wxWindow_GetValidator, METH_VARARGS | METH_KEYWORDS },
         { "wxWindow_SetDropTarget", (PyCFunction) _wrap_wxWindow_SetDropTarget, METH_VARARGS | METH_KEYWORDS },
         { "wxWindow_SetValidator", (PyCFunction) _wrap_wxWindow_SetValidator, METH_VARARGS | METH_KEYWORDS },
         { "wxWindow_GetValidator", (PyCFunction) _wrap_wxWindow_GetValidator, METH_VARARGS | METH_KEYWORDS },

+        { "wxWindow_GetContainingSizer", (PyCFunction) _wrap_wxWindow_GetContainingSizer, METH_VARARGS | METH_KEYWORDS },
+        { "wxWindow_SetContainingSizer", (PyCFunction) _wrap_wxWindow_SetContainingSizer, METH_VARARGS | METH_KEYWORDS },

         { "wxWindow_GetSizer", (PyCFunction) _wrap_wxWindow_GetSizer, METH_VARARGS | METH_KEYWORDS },
         { "wxWindow_SetSizer", (PyCFunction) _wrap_wxWindow_SetSizer, METH_VARARGS | METH_KEYWORDS },
         { "wxWindow_GetToolTip", (PyCFunction) _wrap_wxWindow_GetToolTip, METH_VARARGS | METH_KEYWORDS },
         { "wxWindow_GetSizer", (PyCFunction) _wrap_wxWindow_GetSizer, METH_VARARGS | METH_KEYWORDS },
         { "wxWindow_SetSizer", (PyCFunction) _wrap_wxWindow_SetSizer, METH_VARARGS | METH_KEYWORDS },
         { "wxWindow_GetToolTip", (PyCFunction) _wrap_wxWindow_GetToolTip, METH_VARARGS | METH_KEYWORDS },

diff --git a/wxPython/src/msw/windows.py b/wxPython/src/msw/windows.py
index f8587f4dcdd99678b839e69ce4065f421878a4d1..2c3579fede48fc5f9227de0df85300c48cfb1da2 100644 (file)
--- a/wxPython/src/msw/windows.py
+++ b/wxPython/src/msw/windows.py
@@ -514,6 +514,12 @@ class wxWindowPtr(wxEvtHandlerPtr):
     def GetSizer(self, *_args, **_kwargs):
         val = apply(windowsc.wxWindow_GetSizer,(self,) + _args, _kwargs)
         return val
     def GetSizer(self, *_args, **_kwargs):
         val = apply(windowsc.wxWindow_GetSizer,(self,) + _args, _kwargs)
         return val

+    def SetContainingSizer(self, *_args, **_kwargs):
+        val = apply(windowsc.wxWindow_SetContainingSizer,(self,) + _args, _kwargs)
+        return val
+    def GetContainingSizer(self, *_args, **_kwargs):
+        val = apply(windowsc.wxWindow_GetContainingSizer,(self,) + _args, _kwargs)
+        return val

     def GetValidator(self, *_args, **_kwargs):
         val = apply(windowsc.wxWindow_GetValidator,(self,) + _args, _kwargs)
         return val
     def GetValidator(self, *_args, **_kwargs):
         val = apply(windowsc.wxWindow_GetValidator,(self,) + _args, _kwargs)
         return val

diff --git a/wxPython/src/windows.i b/wxPython/src/windows.i
index d2f44fd990aaf11f22d11bac128e0314f4f63a06..a72fb75ab5178e4a2ea25831dea10f525687209f 100644 (file)
--- a/wxPython/src/windows.i
+++ b/wxPython/src/windows.i
@@ -374,6 +374,10 @@ public:
     void SetSizer(wxSizer* sizer);
     wxSizer* GetSizer();
 
     void SetSizer(wxSizer* sizer);
     wxSizer* GetSizer();
 

+        // Track if this window is a member of a sizer
+    void SetContainingSizer(wxSizer* sizer) { m_containingSizer = sizer; }
+    wxSizer *GetContainingSizer() const { return m_containingSizer; }
+

     wxValidator* GetValidator();
     void SetValidator(const wxValidator& validator);
 
     wxValidator* GetValidator();
     void SetValidator(const wxValidator& validator);