X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ad81651f00edc6f489d9b6a0839d316a964fd521..2c750daecddf6d69364e66e6465113ad9b9454a5:/src/msw/radiobox.cpp

diff --git a/src/msw/radiobox.cpp b/src/msw/radiobox.cpp
index 2767986d6a..70665bdf84 100644
--- a/src/msw/radiobox.cpp
+++ b/src/msw/radiobox.cpp
@@ -1,12 +1,12 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        radiobox.cpp
-// Purpose:     wxRadioBox
+// Name:        src/msw/radiobox.cpp
+// Purpose:     wxRadioBox implementation
 // Author:      Julian Smart
 // Modified by:
 // Created:     04/01/98
 // RCS-ID:      $Id$
-// Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:     wxWindows license
+// Copyright:   (c) Julian Smart
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // ===========================================================================
@@ -17,10 +17,6 @@
 // headers
 // ---------------------------------------------------------------------------
 
-#ifdef __GNUG__
-    #pragma implementation "radiobox.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -28,38 +24,84 @@
     #pragma hdrstop
 #endif
 
+#if wxUSE_RADIOBOX
+
+#include "wx/radiobox.h"
+
 #ifndef WX_PRECOMP
+    #include "wx/hashmap.h"
     #include "wx/bitmap.h"
     #include "wx/brush.h"
-    #include "wx/radiobox.h"
+    #include "wx/settings.h"
     #include "wx/log.h"
 #endif
 
-#include "wx/msw/private.h"
+#include "wx/msw/subwin.h"
 
 #if wxUSE_TOOLTIPS
-    #include <commctrl.h>
-
     #include "wx/tooltip.h"
 #endif // wxUSE_TOOLTIPS
 
-    IMPLEMENT_DYNAMIC_CLASS(wxRadioBox, wxControl)
+// TODO: wxCONSTRUCTOR
+#if 0 // wxUSE_EXTENDED_RTTI
+WX_DEFINE_FLAGS( wxRadioBoxStyle )
+
+wxBEGIN_FLAGS( wxRadioBoxStyle )
+    // new style border flags, we put them first to
+    // use them for streaming out
+    wxFLAGS_MEMBER(wxBORDER_SIMPLE)
+    wxFLAGS_MEMBER(wxBORDER_SUNKEN)
+    wxFLAGS_MEMBER(wxBORDER_DOUBLE)
+    wxFLAGS_MEMBER(wxBORDER_RAISED)
+    wxFLAGS_MEMBER(wxBORDER_STATIC)
+    wxFLAGS_MEMBER(wxBORDER_NONE)
+
+    // old style border flags
+    wxFLAGS_MEMBER(wxSIMPLE_BORDER)
+    wxFLAGS_MEMBER(wxSUNKEN_BORDER)
+    wxFLAGS_MEMBER(wxDOUBLE_BORDER)
+    wxFLAGS_MEMBER(wxRAISED_BORDER)
+    wxFLAGS_MEMBER(wxSTATIC_BORDER)
+    wxFLAGS_MEMBER(wxBORDER)
+
+    // standard window styles
+    wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
+    wxFLAGS_MEMBER(wxCLIP_CHILDREN)
+    wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
+    wxFLAGS_MEMBER(wxWANTS_CHARS)
+    wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
+    wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
+    wxFLAGS_MEMBER(wxVSCROLL)
+    wxFLAGS_MEMBER(wxHSCROLL)
+
+    wxFLAGS_MEMBER(wxRA_SPECIFY_COLS)
+    wxFLAGS_MEMBER(wxRA_SPECIFY_ROWS)
+wxEND_FLAGS( wxRadioBoxStyle )
+
+IMPLEMENT_DYNAMIC_CLASS_XTI(wxRadioBox, wxControl,"wx/radiobox.h")
+
+wxBEGIN_PROPERTIES_TABLE(wxRadioBox)
+    wxEVENT_PROPERTY( Select , wxEVT_RADIOBOX , wxCommandEvent )
+    wxPROPERTY_FLAGS( WindowStyle , wxRadioBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
+wxEND_PROPERTIES_TABLE()
 
-// VZ: the new behaviour is to create the radio buttons as children of the
-//     radiobox instead of creating them as children of the radiobox' parent.
-//
-//     This seems more logical, more consistent with what other frameworks do
-//     and allows tooltips to work with radioboxes, so there should be no
-//     reason to revert to the backward compatible behaviour - but I still
-//     leave this possibility just in case.
-#define RADIOBTN_PARENT_IS_RADIOBOX 1
+#else
+IMPLEMENT_DYNAMIC_CLASS(wxRadioBox, wxControl)
+#endif
+
+/*
+    selection
+    content
+        label
+        dimension
+        item
+*/
 
 // ---------------------------------------------------------------------------
 // private functions
 // ---------------------------------------------------------------------------
 
 // wnd proc for radio buttons
-#ifdef __WIN32__
 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hWnd,
                                            UINT message,
                                            WPARAM wParam,
@@ -69,99 +111,44 @@ LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hWnd,
 // global vars
 // ---------------------------------------------------------------------------
 
-// the pointer to standard radio button wnd proc
-static WXFARPROC s_wndprocRadioBtn = (WXFARPROC)NULL;
-
-#endif // __WIN32__
-
-// ===========================================================================
-// implementation
-// ===========================================================================
-
-// ---------------------------------------------------------------------------
-// wxRadioBox
-// ---------------------------------------------------------------------------
-
-int wxRadioBox::GetNumVer() const
+namespace
 {
-    if ( m_windowStyle & wxRA_SPECIFY_ROWS )
-    {
-        return m_majorDim;
-    }
-    else
-    {
-        return (m_noItems + m_majorDim - 1)/m_majorDim;
-    }
-}
 
-int wxRadioBox::GetNumHor() const
-{
-    if ( m_windowStyle & wxRA_SPECIFY_ROWS )
-    {
-        return (m_noItems + m_majorDim - 1)/m_majorDim;
-    }
-    else
-    {
-        return m_majorDim;
-    }
-}
-
-bool wxRadioBox::MSWCommand(WXUINT cmd, WXWORD id)
-{
-    if ( cmd == BN_CLICKED )
-    {
-        int selectedButton = -1;
+// the pointer to standard radio button wnd proc
+WXFARPROC s_wndprocRadioBtn = (WXFARPROC)NULL;
 
-        for ( int i = 0; i < m_noItems; i++ )
-        {
-            if ( id == wxGetWindowId(m_radioButtons[i]) )
-            {
-                selectedButton = i;
+// Hash allowing to find wxRadioBox containing the given radio button by its
+// HWND. This is used by (subclassed) radio button window proc to find the
+// radio box it belongs to.
+WX_DECLARE_HASH_MAP(HWND, wxRadioBox *,
+                    wxPointerHash, wxPointerEqual,
+                    RadioBoxFromButton);
 
-                break;
-            }
-        }
+RadioBoxFromButton gs_boxFromButton;
 
-        wxASSERT_MSG( selectedButton != -1, wxT("click from alien button?") );
+} // anonymous namespace
 
-        if ( selectedButton != m_selectedButton )
-        {
-            m_selectedButton = selectedButton;
-
-            SendNotificationEvent();
-        }
-        //else: don't generate events when the selection doesn't change
-
-        return TRUE;
-    }
-    else
-        return FALSE;
-}
+// ===========================================================================
+// implementation
+// ===========================================================================
 
-#if WXWIN_COMPATIBILITY
-wxRadioBox::wxRadioBox(wxWindow *parent, wxFunction func, const char *title,
-        int x, int y, int width, int height,
-        int n, char **choices,
-        int majorDim, long style, const char *name)
+/* static */
+wxRadioBox* wxRadioBox::GetFromRadioButtonHWND(WXHWND hwnd)
 {
-    wxString *choices2 = new wxString[n];
-    for ( int i = 0; i < n; i ++) choices2[i] = choices[i];
-    Create(parent, -1, title, wxPoint(x, y), wxSize(width, height), n, choices2, majorDim, style,
-            wxDefaultValidator, name);
-    Callback(func);
-    delete choices2;
+    const RadioBoxFromButton::const_iterator it = gs_boxFromButton.find(hwnd);
+    return it == gs_boxFromButton.end() ? NULL : it->second;
 }
 
-#endif
+// ---------------------------------------------------------------------------
+// wxRadioBox creation
+// ---------------------------------------------------------------------------
 
 // Radio box item
-wxRadioBox::wxRadioBox()
+void wxRadioBox::Init()
 {
-    m_selectedButton = -1;
-    m_noItems = 0;
-    m_noRowsOrCols = 0;
+    m_selectedButton = wxNOT_FOUND;
     m_radioButtons = NULL;
-    m_majorDim = 0;
+    m_dummyHwnd = NULL;
     m_radioWidth = NULL;
     m_radioHeight = NULL;
 }
@@ -178,649 +165,759 @@ bool wxRadioBox::Create(wxWindow *parent,
                         const wxValidator& val,
                         const wxString& name)
 {
-    // initialize members
-    m_selectedButton = -1;
-    m_noItems = 0;
-
-    m_majorDim =  majorDim == 0 ? n : majorDim;
-    m_noRowsOrCols = majorDim;
-
     // common initialization
-    if ( !CreateControl(parent, id, pos, size, style, val, name) )
-        return FALSE;
+    if ( !wxStaticBox::Create(parent, id, title, pos, size, style, name) )
+        return false;
 
-    // create the static box
-    if ( !MSWCreateControl(wxT("BUTTON"), BS_GROUPBOX, pos, size, title, 0) )
-        return FALSE;
+    // the code elsewhere in this file supposes that either wxRA_SPECIFY_COLS
+    // or wxRA_SPECIFY_ROWS is set, ensure that this is indeed the case
+    if ( !(style & (wxRA_SPECIFY_ROWS | wxRA_SPECIFY_COLS)) )
+        style |= wxRA_SPECIFY_COLS;
 
-    // and now create the buttons
-    m_noItems = n;
-#if RADIOBTN_PARENT_IS_RADIOBOX
-    HWND hwndParent = GetHwnd();
+#if wxUSE_VALIDATORS
+    SetValidator(val);
 #else
-    HWND hwndParent = GetHwndOf(parent);
-#endif
+    wxUnusedVar(val);
+#endif // wxUSE_VALIDATORS/!wxUSE_VALIDATORS
+
+    // We need an extra one to keep track of the 'dummy' item we
+    // create to end the radio group, so it will be destroyed and
+    // it's id will be released.  But we want it separate from the
+    // other buttons since the wxSubwindows will operate on it as
+    // well and we just want to ignore it until destroying it.
+    // For instance, we don't want the bounding box of the radio
+    // buttons to include the dummy button
+    m_radioButtons = new wxSubwindows(n);
 
-    // Some radio boxes test consecutive id.
-    (void)NewControlId();
-    m_radioButtons = new WXHWND[n];
     m_radioWidth = new int[n];
     m_radioHeight = new int[n];
 
-    WXHFONT hfont = 0;
-    wxFont& font = GetFont();
-    if ( font.Ok() )
-    {
-        hfont = font.GetResourceHandle();
-    }
-
     for ( int i = 0; i < n; i++ )
     {
         m_radioWidth[i] =
-        m_radioHeight[i] = -1;
-        long styleBtn = BS_AUTORADIOBUTTON | WS_CHILD | WS_VISIBLE;
-        if ( i == 0 && style == 0 )
+        m_radioHeight[i] = wxDefaultCoord;
+        long styleBtn = BS_AUTORADIOBUTTON | WS_TABSTOP | WS_CHILD | WS_VISIBLE;
+        if ( i == 0 )
             styleBtn |= WS_GROUP;
 
-        long newId = NewControlId();
+        wxWindowIDRef subid = NewControlId();
 
-        HWND hwndBtn = ::CreateWindow(_T("BUTTON"),
-                                      choices[i],
+        HWND hwndBtn = ::CreateWindow(wxT("BUTTON"),
+                                      choices[i].t_str(),
                                       styleBtn,
                                       0, 0, 0, 0,   // will be set in SetSize()
-                                      hwndParent,
-                                      (HMENU)newId,
+                                      GetHwndOf(parent),
+                                      (HMENU)wxUIntToPtr(subid.GetValue()),
                                       wxGetInstance(),
                                       NULL);
 
         if ( !hwndBtn )
         {
-            wxLogLastError("CreateWindow(radio btn)");
+            wxLogLastError(wxT("CreateWindow(radio btn)"));
 
-            return FALSE;
+            return false;
         }
 
-        m_radioButtons[i] = (WXHWND)hwndBtn;
+        // Keep track of the subwindow
+        m_radioButtons->Set(i, hwndBtn, subid);
 
         SubclassRadioButton((WXHWND)hwndBtn);
 
-        if ( hfont )
-        {
-            ::SendMessage(hwndBtn, WM_SETFONT, (WPARAM)hfont, 0L);
-        }
-
-        m_subControls.Add(newId);
+        // Also, make it a subcontrol of this control
+        m_subControls.Add(subid);
     }
 
     // Create a dummy radio control to end the group.
-    (void)::CreateWindow(_T("BUTTON"),
-                         _T(""),
+    m_dummyId = NewControlId();
+
+    m_dummyHwnd = (WXHWND)::CreateWindow(wxT("BUTTON"),
+                         wxEmptyString,
                          WS_GROUP | BS_AUTORADIOBUTTON | WS_CHILD,
-                         0, 0, 0, 0, hwndParent,
-                         (HMENU)NewControlId(), wxGetInstance(), NULL);
+                         0, 0, 0, 0, GetHwndOf(parent),
+                         (HMENU)wxUIntToPtr(m_dummyId.GetValue()),
+                         wxGetInstance(), NULL);
 
-    SetSelection(0);
 
+    m_radioButtons->SetFont(GetFont());
+
+#ifdef __WXWINCE__
+    // Set the z-order correctly
+    SetWindowPos(GetHwnd(), HWND_BOTTOM, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE);
+#endif
+
+    SetMajorDim(majorDim == 0 ? n : majorDim, style);
+    SetSelection(0);
     SetSize(pos.x, pos.y, size.x, size.y);
 
-    return TRUE;
+    // Now that we have items determine what is the best size and set it.
+    SetInitialSize(size);
+
+    // And update all the buttons positions to match it.
+    const wxSize actualSize = GetSize();
+    PositionAllButtons(pos.x, pos.y, actualSize.x, actualSize.y);
+
+    return true;
+}
+
+bool wxRadioBox::Create(wxWindow *parent,
+                        wxWindowID id,
+                        const wxString& title,
+                        const wxPoint& pos,
+                        const wxSize& size,
+                        const wxArrayString& choices,
+                        int majorDim,
+                        long style,
+                        const wxValidator& val,
+                        const wxString& name)
+{
+    wxCArrayString chs(choices);
+    return Create(parent, id, title, pos, size, chs.GetCount(),
+                  chs.GetStrings(), majorDim, style, val, name);
 }
 
 wxRadioBox::~wxRadioBox()
 {
-    m_isBeingDeleted = TRUE;
+    SendDestroyEvent();
 
-    if (m_radioButtons)
+    // Unsubclass all the radio buttons and remove their soon-to-be-invalid
+    // HWNDs from the global map. Notice that we need to unsubclass because
+    // otherwise we'd need the entries in gs_boxFromButton for the buttons
+    // being deleted to handle the messages generated during their destruction.
+    for ( size_t item = 0; item < m_radioButtons->GetCount(); item++ )
     {
-        int i;
-        for (i = 0; i < m_noItems; i++)
-            ::DestroyWindow((HWND)m_radioButtons[i]);
-        delete[] m_radioButtons;
+        HWND hwnd = m_radioButtons->Get(item);
+
+        wxSetWindowProc(hwnd, reinterpret_cast<WNDPROC>(s_wndprocRadioBtn));
+        gs_boxFromButton.erase(hwnd);
     }
 
-    if (m_radioWidth)
-        delete[] m_radioWidth;
-    if (m_radioHeight)
-        delete[] m_radioHeight;
+    delete m_radioButtons;
 
+    if ( m_dummyHwnd )
+        DestroyWindow((HWND)m_dummyHwnd);
+
+    delete[] m_radioWidth;
+    delete[] m_radioHeight;
 }
 
-wxString wxRadioBox::GetLabel(int item) const
+// NB: if this code is changed, wxGetWindowForHWND() which relies on having the
+//     radiobox pointer in GWL_USERDATA for radio buttons must be updated too!
+void wxRadioBox::SubclassRadioButton(WXHWND hWndBtn)
 {
-    wxCHECK_MSG( item >= 0 && item < m_noItems, wxT(""), wxT("invalid radiobox index") );
+    HWND hwndBtn = (HWND)hWndBtn;
 
-    return wxGetWindowText(m_radioButtons[item]);
+    if ( !s_wndprocRadioBtn )
+        s_wndprocRadioBtn = (WXFARPROC)wxGetWindowProc(hwndBtn);
+
+    wxSetWindowProc(hwndBtn, wxRadioBtnWndProc);
+
+    gs_boxFromButton[hwndBtn] = this;
 }
 
-void wxRadioBox::SetLabel(int item, const wxString& label)
+// ----------------------------------------------------------------------------
+// events generation
+// ----------------------------------------------------------------------------
+
+bool wxRadioBox::MSWCommand(WXUINT cmd, WXWORD id_)
 {
-    wxCHECK_RET( item >= 0 && item < m_noItems, wxT("invalid radiobox index") );
+    const int id = (signed short)id_;
+
+    if ( cmd == BN_CLICKED )
+    {
+        if (id == GetId())
+            return true;
+
+        int selectedButton = wxNOT_FOUND;
+
+        const unsigned int count = GetCount();
+        for ( unsigned int i = 0; i < count; i++ )
+        {
+            const HWND hwndBtn = (*m_radioButtons)[i];
+            if ( id == wxGetWindowId(hwndBtn) )
+            {
+                // we can get BN_CLICKED for a button which just became focused
+                // but it may not be checked, in which case we shouldn't
+                // generate a radiobox selection changed event for it
+                if ( ::SendMessage(hwndBtn, BM_GETCHECK, 0, 0) == BST_CHECKED )
+                    selectedButton = i;
+
+                break;
+            }
+        }
 
-    m_radioWidth[item] = m_radioHeight[item] = -1;
-    SetWindowText((HWND)m_radioButtons[item], label.c_str());
+        if ( selectedButton == wxNOT_FOUND )
+        {
+            // just ignore it - due to a hack with WM_NCHITTEST handling in our
+            // wnd proc, we can receive dummy click messages when we click near
+            // the radiobox edge (this is ugly but Julian wouldn't let me get
+            // rid of this...)
+            return false;
+        }
+
+        if ( selectedButton != m_selectedButton )
+        {
+            m_selectedButton = selectedButton;
+
+            SendNotificationEvent();
+        }
+        //else: don't generate events when the selection doesn't change
+
+        return true;
+    }
+    else
+        return false;
 }
 
-void wxRadioBox::SetLabel(int item, wxBitmap *bitmap)
+void wxRadioBox::Command(wxCommandEvent & event)
 {
-    /*
-       m_radioWidth[item] = bitmap->GetWidth() + FB_MARGIN;
-       m_radioHeight[item] = bitmap->GetHeight() + FB_MARGIN;
-     */
-    wxFAIL_MSG(wxT("not implemented"));
+    SetSelection (event.GetInt());
+    SetFocus();
+    ProcessCommand(event);
 }
 
-int wxRadioBox::FindString(const wxString& s) const
+void wxRadioBox::SendNotificationEvent()
 {
-    for (int i = 0; i < m_noItems; i++)
-    {
-        if ( s == wxGetWindowText(m_radioButtons[i]) )
-            return i;
-    }
+    wxCommandEvent event(wxEVT_RADIOBOX, m_windowId);
+    event.SetInt( m_selectedButton );
+    event.SetString(GetString(m_selectedButton));
+    event.SetEventObject( this );
+    ProcessCommand(event);
+}
 
-    return wxNOT_FOUND;
+// ----------------------------------------------------------------------------
+// simple accessors
+// ----------------------------------------------------------------------------
+
+unsigned int wxRadioBox::GetCount() const
+{
+    return m_radioButtons ? m_radioButtons->GetCount() : 0u;
+}
+
+void wxRadioBox::SetString(unsigned int item, const wxString& label)
+{
+    wxCHECK_RET( IsValid(item), wxT("invalid radiobox index") );
+
+    m_radioWidth[item] =
+    m_radioHeight[item] = wxDefaultCoord;
+
+    ::SetWindowText((*m_radioButtons)[item], label.c_str());
+
+    InvalidateBestSize();
 }
 
 void wxRadioBox::SetSelection(int N)
 {
-    wxCHECK_RET( (N >= 0) && (N < m_noItems), wxT("invalid radiobox index") );
+    wxCHECK_RET( IsValid(N), wxT("invalid radiobox index") );
 
-    // Following necessary for Win32s, because Win32s translate BM_SETCHECK
-    if (m_selectedButton >= 0 && m_selectedButton < m_noItems)
-        ::SendMessage((HWND) m_radioButtons[m_selectedButton], BM_SETCHECK, 0, 0L);
+    // unselect the old button
+    if ( m_selectedButton != wxNOT_FOUND )
+        ::SendMessage((*m_radioButtons)[m_selectedButton], BM_SETCHECK, 0, 0L);
 
-    ::SendMessage((HWND)m_radioButtons[N], BM_SETCHECK, 1, 0L);
-    ::SetFocus((HWND)m_radioButtons[N]);
+    // and select the new one
+    ::SendMessage((*m_radioButtons)[N], BM_SETCHECK, 1, 0L);
 
     m_selectedButton = N;
 }
 
-// Get single selection, for single choice list items
-int wxRadioBox::GetSelection() const
+// Find string for position
+wxString wxRadioBox::GetString(unsigned int item) const
 {
-    return m_selectedButton;
+    wxCHECK_MSG( IsValid(item), wxEmptyString,
+                 wxT("invalid radiobox index") );
+
+    return wxGetWindowText((*m_radioButtons)[item]);
 }
 
-// Find string for position
-wxString wxRadioBox::GetString(int N) const
+void wxRadioBox::SetFocus()
 {
-    return wxGetWindowText(m_radioButtons[N]);
+    if ( GetCount() > 0 )
+    {
+        ::SetFocus((*m_radioButtons)[m_selectedButton == wxNOT_FOUND
+                                        ? 0
+                                        : m_selectedButton]);
+    }
 }
 
-// Restored old code.
-void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
+// Enable a specific button
+bool wxRadioBox::Enable(unsigned int item, bool enable)
 {
-    int currentX, currentY;
-    GetPosition(&currentX, &currentY);
-    int widthOld, heightOld;
-    GetSize(&widthOld, &heightOld);
-
-    int xx = x;
-    int yy = y;
-
-    if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
-        xx = currentX;
-    if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
-        yy = currentY;
-
-#if RADIOBTN_PARENT_IS_RADIOBOX
-    int y_offset = 0;
-    int x_offset = 0;
-#else
-    int y_offset = yy;
-    int x_offset = xx;
-#endif
+    wxCHECK_MSG( IsValid(item), false,
+                 wxT("invalid item in wxRadioBox::Enable()") );
 
-    int current_width, cyf;
+    BOOL ret = MSWEnableHWND((*m_radioButtons)[item], enable);
 
-    int cx1,cy1;
-    wxGetCharSize(m_hWnd, &cx1, &cy1, & GetFont());
+    return (ret == 0) != enable;
+}
 
-    // Attempt to have a look coherent with other platforms: We compute the
-    // biggest toggle dim, then we align all items according this value.
-    int maxWidth =  -1;
-    int maxHeight = -1;
+bool wxRadioBox::IsItemEnabled(unsigned int item) const
+{
+    wxCHECK_MSG( IsValid(item), false,
+                 wxT("invalid item in wxRadioBox::IsItemEnabled()") );
 
-    int i;
-    for (i = 0 ; i < m_noItems; i++)
-    {
-        int eachWidth;
-        int eachHeight;
-        if (m_radioWidth[i]<0)
-        {
-            // It's a labelled toggle
-            GetTextExtent(wxGetWindowText(m_radioButtons[i]),
-                          &current_width, &cyf);
-            eachWidth = (int)(current_width + RADIO_SIZE);
-            eachHeight = (int)((3*cyf)/2);
-        }
-        else
-        {
-            eachWidth = m_radioWidth[i];
-            eachHeight = m_radioHeight[i];
-        }
+    return ::IsWindowEnabled((*m_radioButtons)[item]) != 0;
+}
 
-        if (maxWidth<eachWidth)
-            maxWidth = eachWidth;
-        if (maxHeight<eachHeight)
-            maxHeight = eachHeight;
-    }
+// Show a specific button
+bool wxRadioBox::Show(unsigned int item, bool show)
+{
+    wxCHECK_MSG( IsValid(item), false,
+                 wxT("invalid item in wxRadioBox::Show()") );
 
-    if (m_hWnd)
-    {
-        int totWidth;
-        int totHeight;
+    BOOL ret = ::ShowWindow((*m_radioButtons)[item], show ? SW_SHOW : SW_HIDE);
 
-        int nbHor = GetNumHor(),
-            nbVer = GetNumVer();
+    bool changed = (ret != 0) != show;
+    if ( changed )
+    {
+        InvalidateBestSize();
+    }
 
-        // this formula works, but I don't know why.
-        // Please, be sure what you do if you modify it!!
-        if (m_radioWidth[0]<0)
-            totHeight = (nbVer * maxHeight) + cy1/2;
-        else
-            totHeight = nbVer * (maxHeight+cy1/2);
-        totWidth  = nbHor * (maxWidth+cx1);
+    return changed;
+}
 
-        int extraHeight = cy1;
+bool wxRadioBox::IsItemShown(unsigned int item) const
+{
+    wxCHECK_MSG( IsValid(item), false,
+                 wxT("invalid item in wxRadioBox::IsItemShown()") );
+
+    // don't use IsWindowVisible() here because it would return false if the
+    // radiobox itself is hidden while we want to only return false if this
+    // button specifically is hidden
+    return (::GetWindowLong((*m_radioButtons)[item],
+                            GWL_STYLE) & WS_VISIBLE) != 0;
+}
 
-#if defined(CTL3D) && !CTL3D
-        // Requires a bigger group box in plain Windows
-        extraHeight *= 3;
-        extraHeight /= 2;
-#endif
+#if wxUSE_TOOLTIPS
 
-        // only change our width/height if asked for
-        if ( width == -1 )
-        {
-            if ( sizeFlags & wxSIZE_AUTO_WIDTH )
-                width = totWidth + cx1;
-            else
-                width = widthOld;
-        }
+bool wxRadioBox::HasToolTips() const
+{
+    return wxStaticBox::HasToolTips() || wxRadioBoxBase::HasItemToolTips();
+}
 
-        if ( height == -1 )
-        {
-            if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
-                height = totHeight + extraHeight;
-            else
-                height = heightOld;
-        }
+void wxRadioBox::DoSetItemToolTip(unsigned int item, wxToolTip *tooltip)
+{
+    // we have already checked for the item to be valid in wxRadioBoxBase
+    const HWND hwndRbtn = (*m_radioButtons)[item];
+    if ( tooltip != NULL )
+        tooltip->AddOtherWindow(hwndRbtn);
+    else // unset the tooltip
+        wxToolTip::Remove(hwndRbtn, 0, wxRect(0,0,0,0));
+        // the second parameter can be zero since it's ignored by Remove()
+        // as we pass a rect for which wxRect::IsEmpty()==true...
+}
 
-        ::MoveWindow(GetHwnd(), xx, yy, width, height, TRUE);
+#endif // wxUSE_TOOLTIPS
 
-        x_offset += cx1;
-        y_offset += cy1;
+bool wxRadioBox::Reparent(wxWindowBase *newParent)
+{
+    if ( !wxStaticBox::Reparent(newParent) )
+    {
+        return false;
     }
 
-#if defined(CTL3D) && (!CTL3D)
-    y_offset += (int)(cy1/2); // Fudge factor since buttons overlapped label
-    // JACS 2/12/93. CTL3D draws group label quite high.
+    HWND hwndParent = GetHwndOf(GetParent());
+    for ( size_t item = 0; item < m_radioButtons->GetCount(); item++ )
+    {
+        ::SetParent((*m_radioButtons)[item], hwndParent);
+    }
+#ifdef __WXWINCE__
+    // put static box under the buttons in the Z-order
+    SetWindowPos(GetHwnd(), HWND_BOTTOM, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE);
 #endif
-    int startX = x_offset;
-    int startY = y_offset;
+    return true;
+}
+
+WX_FORWARD_STD_METHODS_TO_SUBWINDOWS(wxRadioBox, wxStaticBox, m_radioButtons)
+
+// ----------------------------------------------------------------------------
+// size calculations
+// ----------------------------------------------------------------------------
 
-    for ( i = 0 ; i < m_noItems; i++)
+wxSize wxRadioBox::GetMaxButtonSize() const
+{
+    // calculate the max button size
+    int widthMax = 0,
+        heightMax = 0;
+    const unsigned int count = GetCount();
+    for ( unsigned int i = 0 ; i < count; i++ )
     {
-        // Bidimensional radio adjustment
-        if (i&&((i%m_majorDim)==0)) // Why is this omitted for i = 0?
+        int width, height;
+        if ( m_radioWidth[i] < 0 )
         {
-            if (m_windowStyle & wxRA_VERTICAL)
-            {
-                y_offset = startY;
-                x_offset += maxWidth + cx1;
-            }
-            else
-            {
-                x_offset = startX;
-                y_offset += maxHeight;
-                if (m_radioWidth[0]>0)
-                    y_offset += cy1/2;
-            }
-        }
-        int eachWidth;
-        int eachHeight;
-        if (m_radioWidth[i]<0)
-        {
-            // It's a labeled item
-            GetTextExtent(wxGetWindowText(m_radioButtons[i]),
-                          &current_width, &cyf);
-
-            // How do we find out radio button bitmap size!!
-            // By adjusting them carefully, manually :-)
-            eachWidth = (int)(current_width + RADIO_SIZE);
-            eachHeight = (int)((3*cyf)/2);
+            GetTextExtent(wxGetWindowText((*m_radioButtons)[i]), &width, &height);
+
+            // adjust the size to take into account the radio box itself
+            // FIXME this is totally bogus!
+            width += RADIO_SIZE;
+            height *= 3;
+            height /= 2;
         }
         else
         {
-            eachWidth = m_radioWidth[i];
-            eachHeight = m_radioHeight[i];
+            width = m_radioWidth[i];
+            height = m_radioHeight[i];
         }
 
-        // VZ: make all buttons of the same, maximal size - like this they
-        //     cover the radiobox entirely and the radiobox tooltips are always
-        //     shown (otherwise they are not when the mouse pointer is in the
-        //     radiobox part not belonging to any radiobutton)
-        ::MoveWindow((HWND)m_radioButtons[i],
-                     x_offset, y_offset, maxWidth, maxHeight,
-                     TRUE);
-
-        if (m_windowStyle & wxRA_SPECIFY_ROWS)
-        {
-            y_offset += maxHeight;
-            if (m_radioWidth[0]>0)
-                y_offset += cy1/2;
-        }
-        else
-            x_offset += maxWidth + cx1;
+        if ( widthMax < width )
+            widthMax = width;
+        if ( heightMax < height )
+            heightMax = height;
     }
+
+    return wxSize(widthMax, heightMax);
 }
 
-void wxRadioBox::GetSize(int *width, int *height) const
+wxSize wxRadioBox::GetTotalButtonSize(const wxSize& sizeBtn) const
 {
-    RECT rect;
-    rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
+    // the radiobox should be big enough for its buttons
+    int cx1, cy1;
+    wxGetCharSize(m_hWnd, &cx1, &cy1, GetFont());
 
-    if (m_hWnd)
-        wxFindMaxSize(m_hWnd, &rect);
+    int extraHeight = cy1;
 
-    int i;
-    for (i = 0; i < m_noItems; i++)
-        wxFindMaxSize(m_radioButtons[i], &rect);
+    int height = GetRowCount() * sizeBtn.y + cy1/2 + extraHeight;
+    int width  = GetColumnCount() * (sizeBtn.x + cx1) + cx1;
 
-    *width = rect.right - rect.left;
-    *height = rect.bottom - rect.top;
-}
+    // Add extra space under the label, if it exists.
+    if (!wxControl::GetLabel().empty())
+        height += cy1/2;
 
-void wxRadioBox::GetPosition(int *x, int *y) const
-{
-    wxWindow *parent = GetParent();
-    RECT rect = { -1, -1, -1, -1 };
-
-    int i;
-    for (i = 0; i < m_noItems; i++)
-        wxFindMaxSize(m_radioButtons[i], &rect);
-
-    if (m_hWnd)
-        wxFindMaxSize(m_hWnd, &rect);
-
-    // Since we now have the absolute screen coords, if there's a parent we
-    // must subtract its top left corner
-    POINT point;
-    point.x = rect.left;
-    point.y = rect.top;
-    if (parent)
-    {
-        ::ScreenToClient((HWND) parent->GetHWND(), &point);
-    }
+    // and also wide enough for its label
+    int widthLabel;
+    GetTextExtent(GetLabelText(), &widthLabel, NULL);
+    widthLabel += RADIO_SIZE; // FIXME this is bogus too
+    if ( widthLabel > width )
+        width = widthLabel;
 
-    // We may be faking the client origin. So a window that's really at (0, 30)
-    // may appear (to wxWin apps) to be at (0, 0).
-    if (GetParent())
-    {
-        wxPoint pt(GetParent()->GetClientAreaOrigin());
-        point.x -= pt.x;
-        point.y -= pt.y;
-    }
-
-    *x = point.x;
-    *y = point.y;
+    return wxSize(width, height);
 }
 
-void wxRadioBox::SetFocus()
+wxSize wxRadioBox::DoGetBestSize() const
 {
-    if (m_noItems > 0)
+    if ( !m_radioButtons )
     {
-        if (m_selectedButton == -1)
-            ::SetFocus((HWND) m_radioButtons[0]);
-        else
-            ::SetFocus((HWND) m_radioButtons[m_selectedButton]);
+        // if we're not fully initialized yet, we can't meaningfully compute
+        // our best size, we'll do it later
+        return wxSize(1, 1);
     }
 
+    wxSize best = GetTotalButtonSize(GetMaxButtonSize());
+    CacheBestSize(best);
+    return best;
 }
 
-bool wxRadioBox::Show(bool show)
+void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 {
-    if ( !wxControl::Show(show) )
-        return FALSE;
-
-    int nCmdShow = show ? SW_SHOW : SW_HIDE;
-    for ( int i = 0; i < m_noItems; i++ )
+    if ( (width == wxDefaultCoord && (sizeFlags & wxSIZE_AUTO_WIDTH)) ||
+            (height == wxDefaultCoord && (sizeFlags & wxSIZE_AUTO_HEIGHT)) )
     {
-        ::ShowWindow((HWND)m_radioButtons[i], nCmdShow);
-    }
+        // Attempt to have a look coherent with other platforms: We compute the
+        // biggest toggle dim, then we align all items according this value.
+        const wxSize totSize = GetTotalButtonSize(GetMaxButtonSize());
 
-    return TRUE;
-}
+        // only change our width/height if asked for
+        if ( width == wxDefaultCoord && (sizeFlags & wxSIZE_AUTO_WIDTH) )
+            width = totSize.x;
 
-// Enable a specific button
-void wxRadioBox::Enable(int item, bool enable)
-{
-    wxCHECK_RET( item >= 0 && item < m_noItems,
-                 wxT("invalid item in wxRadioBox::Enable()") );
+        if ( height == wxDefaultCoord && (sizeFlags & wxSIZE_AUTO_HEIGHT) )
+            height = totSize.y;
+    }
 
-    ::EnableWindow((HWND) m_radioButtons[item], enable);
+    wxStaticBox::DoSetSize(x, y, width, height);
 }
 
-// Enable all controls
-bool wxRadioBox::Enable(bool enable)
+void wxRadioBox::DoMoveWindow(int x, int y, int width, int height)
 {
-    if ( !wxControl::Enable(enable) )
-        return FALSE;
+    wxStaticBox::DoMoveWindow(x, y, width, height);
 
-    for (int i = 0; i < m_noItems; i++)
-        ::EnableWindow((HWND) m_radioButtons[i], enable);
-
-    return TRUE;
+    PositionAllButtons(x, y, width, height);
 }
 
-// Show a specific button
-void wxRadioBox::Show(int item, bool show)
+void
+wxRadioBox::PositionAllButtons(int x, int y, int width, int WXUNUSED(height))
 {
-    wxCHECK_RET( item >= 0 && item < m_noItems,
-                 wxT("invalid item in wxRadioBox::Show()") );
+    wxSize maxSize = GetMaxButtonSize();
+    int maxWidth = maxSize.x,
+        maxHeight = maxSize.y;
 
-    ::ShowWindow((HWND)m_radioButtons[item], show ? SW_SHOW : SW_HIDE);
-}
+    // Now position all the buttons: the current button will be put at
+    // wxPoint(x_offset, y_offset) and the new row/column will start at
+    // startX/startY. The size of all buttons will be the same wxSize(maxWidth,
+    // maxHeight) except for the buttons in the last column which should extend
+    // to the right border of radiobox and thus can be wider than this.
 
-// For single selection items only
-wxString wxRadioBox::GetStringSelection() const
-{
-    wxString result;
-    int sel = GetSelection();
-    if (sel > -1)
-        result = GetString(sel);
+    // Also, remember that wxRA_SPECIFY_COLS means that we arrange buttons in
+    // left to right order and GetMajorDim() is the number of columns while
+    // wxRA_SPECIFY_ROWS means that the buttons are arranged top to bottom and
+    // GetMajorDim() is the number of rows.
 
-    return result;
-}
+    int cx1, cy1;
+    wxGetCharSize(m_hWnd, &cx1, &cy1, GetFont());
 
-bool wxRadioBox::SetStringSelection(const wxString& s)
-{
-    int sel = FindString (s);
-    if (sel > -1)
-    {
-        SetSelection (sel);
-        return TRUE;
-    }
-    else
-        return FALSE;
-}
+    int x_offset = x + cx1;
+    int y_offset = y + cy1;
 
-bool wxRadioBox::ContainsHWND(WXHWND hWnd) const
-{
-    int i;
-    for (i = 0; i < Number(); i++)
-    {
-        if (GetRadioButtons()[i] == hWnd)
-            return TRUE;
-    }
+    // Add extra space under the label, if it exists.
+    if (!wxControl::GetLabel().empty())
+        y_offset += cy1/2;
 
-    return FALSE;
-}
+    int startX = x_offset;
+    int startY = y_offset;
 
-void wxRadioBox::Command(wxCommandEvent & event)
-{
-    SetSelection (event.m_commandInt);
-    ProcessCommand (event);
-}
+    const unsigned int count = GetCount();
+    for (unsigned int i = 0; i < count; i++)
+    {
+        // the last button in the row may be wider than the other ones as the
+        // radiobox may be wider than the sum of the button widths (as it
+        // happens, for example, when the radiobox label is very long)
+        bool isLastInTheRow;
+        if ( m_windowStyle & wxRA_SPECIFY_COLS )
+        {
+            // item is the last in its row if it is a multiple of the number of
+            // columns or if it is just the last item
+            unsigned int n = i + 1;
+            isLastInTheRow = ((n % GetMajorDim()) == 0) || (n == count);
+        }
+        else // wxRA_SPECIFY_ROWS
+        {
+            // item is the last in the row if it is in the last columns
+            isLastInTheRow = i >= (count/GetMajorDim())*GetMajorDim();
+        }
 
-void wxRadioBox::SubclassRadioButton(WXHWND hWndBtn)
-{
-#ifdef __WIN32__
-    HWND hwndBtn = (HWND)hWndBtn;
+        // is this the start of new row/column?
+        if ( i && (i % GetMajorDim() == 0) )
+        {
+            if ( m_windowStyle & wxRA_SPECIFY_ROWS )
+            {
+                // start of new column
+                y_offset = startY;
+                x_offset += maxWidth + cx1;
+            }
+            else // start of new row
+            {
+                x_offset = startX;
+                y_offset += maxHeight;
+                if (m_radioWidth[0]>0)
+                    y_offset += cy1/2;
+            }
+        }
 
-    if ( !s_wndprocRadioBtn )
-        s_wndprocRadioBtn = (WXFARPROC)::GetWindowLong(hwndBtn, GWL_WNDPROC);
+        int widthBtn;
+        if ( isLastInTheRow )
+        {
+            // make the button go to the end of radio box
+            widthBtn = startX + width - x_offset - 2*cx1;
+            if ( widthBtn < maxWidth )
+                widthBtn = maxWidth;
+        }
+        else
+        {
+            // normal button, always of the same size
+            widthBtn = maxWidth;
+        }
 
-    // No GWL_USERDATA in Win16, so omit this subclassing.
-    ::SetWindowLong(hwndBtn, GWL_WNDPROC, (long)wxRadioBtnWndProc);
-    ::SetWindowLong(hwndBtn, GWL_USERDATA, (long)this);
-#endif // __WIN32__
-}
+        // make all buttons of the same, maximal size - like this they cover
+        // the radiobox entirely and the radiobox tooltips are always shown
+        // (otherwise they are not when the mouse pointer is in the radiobox
+        // part not belonging to any radiobutton)
+        DoMoveSibling((*m_radioButtons)[i], x_offset, y_offset, widthBtn, maxHeight);
 
-void wxRadioBox::SendNotificationEvent()
-{
-    wxCommandEvent event(wxEVT_COMMAND_RADIOBOX_SELECTED, m_windowId);
-    event.SetInt( m_selectedButton );
-    event.SetString( GetString(m_selectedButton) );
-    event.SetEventObject( this );
-    ProcessCommand(event);
+        // where do we put the next button?
+        if ( m_windowStyle & wxRA_SPECIFY_ROWS )
+        {
+            // below this one
+            y_offset += maxHeight;
+            if (m_radioWidth[0]>0)
+                y_offset += cy1/2;
+        }
+        else
+        {
+            // to the right of this one
+            x_offset += widthBtn + cx1;
+        }
+    }
 }
 
-bool wxRadioBox::SetFont(const wxFont& font)
+int wxRadioBox::GetItemFromPoint(const wxPoint& pt) const
 {
-    if ( !wxControl::SetFont(font) )
+    const unsigned int count = GetCount();
+    for ( unsigned int i = 0; i < count; i++ )
     {
-        // nothing to do
-        return FALSE;
-    }
+        RECT rect = wxGetWindowRect((*m_radioButtons)[i]);
 
-    // also set the font of our radio buttons
-    WXHFONT hfont = wxFont(font).GetResourceHandle();
-    for ( int n = 0; n < m_noItems; n++ )
-    {
-        ::SendMessage((HWND)m_radioButtons[n], WM_SETFONT, (WPARAM)hfont, 0L);
+        if ( rect.left <= pt.x && pt.x < rect.right &&
+                rect.top  <= pt.y && pt.y < rect.bottom )
+        {
+            return i;
+        }
     }
 
-    return TRUE;
+    return wxNOT_FOUND;
 }
 
-long wxRadioBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+// ----------------------------------------------------------------------------
+// radio box drawing
+// ----------------------------------------------------------------------------
+
+#ifndef __WXWINCE__
+
+WXHRGN wxRadioBox::MSWGetRegionWithoutChildren()
 {
-    // This is required for the radiobox to be sensitive to mouse input,
-    // e.g. for Dialog Editor.
-    if (nMsg == WM_NCHITTEST)
-    {
-        int xPos = LOWORD(lParam);  // horizontal position of cursor
-        int yPos = HIWORD(lParam);  // vertical position of cursor
+    RECT rc;
+    ::GetWindowRect(GetHwnd(), &rc);
+    HRGN hrgn = ::CreateRectRgn(rc.left, rc.top, rc.right + 1, rc.bottom + 1);
 
-        ScreenToClient(&xPos, &yPos);
+    const unsigned int count = GetCount();
+    for ( unsigned int i = 0; i < count; ++i )
+    {
+        // don't clip out hidden children
+        if ( !IsItemShown(i) )
+            continue;
 
-        // Make sure you can drag by the top of the groupbox, but let
-        // other (enclosed) controls get mouse events also
-        if (yPos < 10)
-            return (long)HTCLIENT;
+        ::GetWindowRect((*m_radioButtons)[i], &rc);
+        AutoHRGN hrgnchild(::CreateRectRgnIndirect(&rc));
+        ::CombineRgn(hrgn, hrgn, hrgnchild, RGN_DIFF);
     }
 
-    return wxControl::MSWWindowProc(nMsg, wParam, lParam);
+    return (WXHRGN)hrgn;
 }
 
+#endif // __WXWINCE__
+
 // ---------------------------------------------------------------------------
 // window proc for radio buttons
 // ---------------------------------------------------------------------------
 
-#ifdef __WIN32__
-
 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hwnd,
-                                           UINT msg,
+                                           UINT message,
                                            WPARAM wParam,
                                            LPARAM lParam)
 {
-    bool processed = FALSE;
-    if ( msg == WM_KEYDOWN
-#if wxUSE_TOOLTIPS
-         || msg == WM_NOTIFY
-#endif // wxUSE_TOOLTIPS
-       )
-    {
-        wxRadioBox *radiobox = (wxRadioBox *)::GetWindowLong(hwnd, GWL_USERDATA);
 
-        wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
+    wxRadioBox * const radiobox = wxRadioBox::GetFromRadioButtonHWND(hwnd);
+    wxCHECK_MSG( radiobox, 0, wxT("Should have the associated radio box") );
 
-#if wxUSE_TOOLTIPS
-        if ( msg == WM_NOTIFY )
-        {
-            NMHDR* hdr = (NMHDR *)lParam;
-            if ( (int)hdr->code == TTN_NEEDTEXT )
+    switch ( message )
+    {
+        case WM_GETDLGCODE:
+            // we must tell IsDialogMessage()/our kbd processing code that we
+            // want to process arrows ourselves because neither of them is
+            // smart enough to handle arrows properly for us
             {
-                wxToolTip *tt = radiobox->GetToolTip();
-                if ( tt )
-                {
-                    TOOLTIPTEXT *ttt = (TOOLTIPTEXT *)lParam;
-                    ttt->lpszText = (wxChar *)tt->GetTip().c_str();
+                long lDlgCode = ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd,
+                                                 message, wParam, lParam);
 
-                    processed = TRUE;
-                }
+                return lDlgCode | DLGC_WANTARROWS;
             }
-        }
-        else // msg == WM_KEYDOWN
-#endif // wxUSE_TOOLTIPS
-        {
-            processed = TRUE;
-
-            int sel = radiobox->GetSelection();
 
-            switch ( wParam )
+        case WM_KEYDOWN:
             {
-                case VK_UP:
-                    sel--;
-                    break;
+                bool processed = true;
 
-                case VK_LEFT:
-                    sel -= radiobox->GetNumVer();
-                    break;
+                wxDirection dir;
+                switch ( wParam )
+                {
+                    case VK_UP:
+                        dir = wxUP;
+                        break;
+
+                    case VK_LEFT:
+                        dir = wxLEFT;
+                        break;
+
+                    case VK_DOWN:
+                        dir = wxDOWN;
+                        break;
 
-                case VK_DOWN:
-                    sel++;
-                    break;
+                    case VK_RIGHT:
+                        dir = wxRIGHT;
+                        break;
 
-                case VK_RIGHT:
-                    sel += radiobox->GetNumVer();
-                    break;
+                    default:
+                        processed = false;
 
-                case VK_TAB:
+                        // just to suppress the compiler warning
+                        dir = wxALL;
+                }
+
+                if ( processed )
+                {
+                    int selOld = radiobox->GetSelection();
+                    int selNew = radiobox->GetNextItem
+                                 (
+                                  selOld,
+                                  dir,
+                                  radiobox->GetWindowStyle()
+                                 );
+
+                    if ( selNew != selOld )
                     {
-                        wxNavigationKeyEvent event;
-                        event.SetDirection(!(::GetKeyState(VK_SHIFT) & 0x100));
-                        event.SetWindowChange(FALSE);
-                        event.SetEventObject(radiobox);
+                        radiobox->SetSelection(selNew);
+                        radiobox->SetFocus();
 
-                        if ( radiobox->GetEventHandler()->ProcessEvent(event) )
-                            return 0;
+                        // emulate the button click
+                        radiobox->SendNotificationEvent();
+
+                        return 0;
                     }
-                    // fall through
+                }
+            }
+            break;
 
-                default:
-                    processed = FALSE;
+        case WM_SETFOCUS:
+        case WM_KILLFOCUS:
+            {
+                // if we don't do this, no focus events are generated for the
+                // radiobox and, besides, we need to notify the parent about
+                // the focus change, otherwise the focus handling logic in
+                // wxControlContainer doesn't work
+                if ( message == WM_SETFOCUS )
+                    radiobox->HandleSetFocus((WXHWND)wParam);
+                else
+                    radiobox->HandleKillFocus((WXHWND)wParam);
             }
+            break;
 
-            if ( processed )
+#ifndef __WXWINCE__
+        case WM_HELP:
             {
-                if ( sel >= 0 && sel < radiobox->Number() )
-                {
-                    radiobox->SetSelection(sel);
+                bool processed = false;
 
-                    // emulate the button click
-                    radiobox->SendNotificationEvent();
+                wxEvtHandler * const handler = radiobox->GetEventHandler();
+
+                HELPINFO* info = (HELPINFO*) lParam;
+                if ( info->iContextType == HELPINFO_WINDOW )
+                {
+                    for ( wxWindow* subjectOfHelp = radiobox;
+                          subjectOfHelp;
+                          subjectOfHelp = subjectOfHelp->GetParent() )
+                    {
+                        wxHelpEvent helpEvent(wxEVT_HELP,
+                                              subjectOfHelp->GetId(),
+                                              wxPoint(info->MousePos.x,
+                                                      info->MousePos.y));
+                        helpEvent.SetEventObject(radiobox);
+                        if ( handler->ProcessEvent(helpEvent) )
+                        {
+                            processed = true;
+                            break;
+                        }
+                    }
+                }
+                else if (info->iContextType == HELPINFO_MENUITEM)
+                {
+                    wxHelpEvent helpEvent(wxEVT_HELP, info->iCtrlId);
+                    helpEvent.SetEventObject(radiobox);
+                    processed = handler->ProcessEvent(helpEvent);
                 }
+
+                if ( processed )
+                    return 0;
             }
-        }
+            break;
+#endif // !__WXWINCE__
     }
 
-    if ( processed )
-        return 0;
-
-    return ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd, msg, wParam, lParam);
+    return ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd, message, wParam, lParam);
 }
 
-#endif // __WIN32__
-
+#endif // wxUSE_RADIOBOX