Mac-ify wxTreeCtrl further.

[wxWidgets.git] / src / msw / radiobox.cpp

diff --git a/src/msw/radiobox.cpp b/src/msw/radiobox.cpp
index dc5c3c592690e72964210dfa6a5e00b82c7e9ad0..026f8a283080f7c3eb9a09d23fed2e0392272dd2 100644 (file)
--- a/src/msw/radiobox.cpp
+++ b/src/msw/radiobox.cpp
@@ -1,6 +1,6 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        radiobox.cpp
-// Purpose:     wxRadioBox
+// Name:        msw/radiobox.cpp
+// Purpose:     wxRadioBox implementation

 // Author:      Julian Smart
 // Modified by:
 // Created:     04/01/98
 // Author:      Julian Smart
 // Modified by:
 // Created:     04/01/98


@@ -28,17 +28,20 @@
     #pragma hdrstop
 #endif
 
     #pragma hdrstop
 #endif
 

+#if wxUSE_RADIOBOX
+

 #ifndef WX_PRECOMP
     #include "wx/bitmap.h"
     #include "wx/brush.h"
     #include "wx/radiobox.h"
 #ifndef WX_PRECOMP
     #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"
 
 #if wxUSE_TOOLTIPS
     #include "wx/log.h"
 #endif
 
 #include "wx/msw/private.h"
 
 #if wxUSE_TOOLTIPS

-    #ifndef __GNUWIN32_OLD__
+    #if !defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__)

         #include <commctrl.h>
     #endif
     #include "wx/tooltip.h"
         #include <commctrl.h>
     #endif
     #include "wx/tooltip.h"


@@ -85,7 +88,7 @@ LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hWnd,
 // ---------------------------------------------------------------------------
 
 // the pointer to standard radio button wnd proc
 // ---------------------------------------------------------------------------
 
 // the pointer to standard radio button wnd proc

-static WNDPROC s_wndprocRadioBtn = (WNDPROC)NULL;
+static WXFARPROC s_wndprocRadioBtn = (WXFARPROC)NULL;

 
 #endif // __WIN32__
 
 
 #endif // __WIN32__
 


@@ -97,6 +100,22 @@ static WNDPROC s_wndprocRadioBtn = (WNDPROC)NULL;
 // wxRadioBox
 // ---------------------------------------------------------------------------
 
 // wxRadioBox
 // ---------------------------------------------------------------------------
 

+int wxRadioBox::GetCount() const
+{
+    return m_noItems;
+}
+
+int wxRadioBox::GetColumnCount() const
+{
+    return GetNumHor();
+}
+
+int wxRadioBox::GetRowCount() const
+{
+    return GetNumVer();
+}
+
+// returns the number of rows

 int wxRadioBox::GetNumVer() const
 {
     if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 int wxRadioBox::GetNumVer() const
 {
     if ( m_windowStyle & wxRA_SPECIFY_ROWS )


@@ -109,6 +128,7 @@ int wxRadioBox::GetNumVer() const
     }
 }
 
     }
 }
 

+// returns the number of columns

 int wxRadioBox::GetNumHor() const
 {
     if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 int wxRadioBox::GetNumHor() const
 {
     if ( m_windowStyle & wxRA_SPECIFY_ROWS )


@@ -125,6 +145,9 @@ bool wxRadioBox::MSWCommand(WXUINT cmd, WXWORD id)
 {
     if ( cmd == BN_CLICKED )
     {
 {
     if ( cmd == BN_CLICKED )
     {

+        if (id == GetId())
+            return TRUE;
+

         int selectedButton = -1;
 
         for ( int i = 0; i < m_noItems; i++ )
         int selectedButton = -1;
 
         for ( int i = 0; i < m_noItems; i++ )


@@ -137,7 +160,14 @@ bool wxRadioBox::MSWCommand(WXUINT cmd, WXWORD id)
             }
         }
 
             }
         }
 

-        wxASSERT_MSG( selectedButton != -1, wxT("click from alien button?") );
+        if ( selectedButton == -1 )
+        {
+            // 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 )
         {
 
         if ( selectedButton != m_selectedButton )
         {


@@ -197,7 +227,7 @@ bool wxRadioBox::Create(wxWindow *parent,
     m_selectedButton = -1;
     m_noItems = 0;
 
     m_selectedButton = -1;
     m_noItems = 0;
 

-    m_majorDim =  majorDim == 0 ? n : majorDim;
+    m_majorDim = majorDim == 0 ? n : majorDim;

     m_noRowsOrCols = majorDim;
 
     // common initialization
     m_noRowsOrCols = majorDim;
 
     // common initialization


@@ -251,7 +281,7 @@ bool wxRadioBox::Create(wxWindow *parent,
 
         if ( !hwndBtn )
         {
 
         if ( !hwndBtn )
         {

-            wxLogLastError("CreateWindow(radio btn)");
+            wxLogLastError(wxT("CreateWindow(radio btn)"));

 
             return FALSE;
         }
 
             return FALSE;
         }


@@ -301,14 +331,7 @@ wxRadioBox::~wxRadioBox()
 
 }
 
 
 }
 

-wxString wxRadioBox::GetLabel(int item) const
-{
-    wxCHECK_MSG( item >= 0 && item < m_noItems, wxT(""), wxT("invalid radiobox index") );
-
-    return wxGetWindowText(m_radioButtons[item]);
-}
-
-void wxRadioBox::SetLabel(int item, const wxString& label)
+void wxRadioBox::SetString(int item, const wxString& label)

 {
     wxCHECK_RET( item >= 0 && item < m_noItems, wxT("invalid radiobox index") );
 
 {
     wxCHECK_RET( item >= 0 && item < m_noItems, wxT("invalid radiobox index") );
 


@@ -316,26 +339,6 @@ void wxRadioBox::SetLabel(int item, const wxString& label)
     SetWindowText((HWND)m_radioButtons[item], label.c_str());
 }
 
     SetWindowText((HWND)m_radioButtons[item], label.c_str());
 }
 

-void wxRadioBox::SetLabel(int item, wxBitmap *bitmap)
-{
-    /*
-       m_radioWidth[item] = bitmap->GetWidth() + FB_MARGIN;
-       m_radioHeight[item] = bitmap->GetHeight() + FB_MARGIN;
-     */
-    wxFAIL_MSG(wxT("not implemented"));
-}
-
-int wxRadioBox::FindString(const wxString& s) const
-{
-    for (int i = 0; i < m_noItems; i++)
-    {
-        if ( s == wxGetWindowText(m_radioButtons[i]) )
-            return i;
-    }
-
-    return wxNOT_FOUND;
-}
-

 void wxRadioBox::SetSelection(int N)
 {
     wxCHECK_RET( (N >= 0) && (N < m_noItems), wxT("invalid radiobox index") );
 void wxRadioBox::SetSelection(int N)
 {
     wxCHECK_RET( (N >= 0) && (N < m_noItems), wxT("invalid radiobox index") );


@@ -357,9 +360,81 @@ int wxRadioBox::GetSelection() const
 }
 
 // Find string for position
 }
 
 // Find string for position

-wxString wxRadioBox::GetString(int N) const
+wxString wxRadioBox::GetString(int item) const
+{
+    wxCHECK_MSG( item >= 0 && item < m_noItems, wxEmptyString,
+                 wxT("invalid radiobox index") );
+
+    return wxGetWindowText(m_radioButtons[item]);
+}
+
+// ----------------------------------------------------------------------------
+// size calculations
+// ----------------------------------------------------------------------------
+
+wxSize wxRadioBox::GetMaxButtonSize() const

 {
 {

-    return wxGetWindowText(m_radioButtons[N]);
+    // calculate the max button size
+    int widthMax = 0,
+        heightMax = 0;
+    for ( int i = 0 ; i < m_noItems; i++ )
+    {
+        int width, height;
+        if ( m_radioWidth[i] < 0 )
+        {
+            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
+        {
+            width = m_radioWidth[i];
+            height = m_radioHeight[i];
+        }
+
+        if ( widthMax < width )
+            widthMax = width;
+        if ( heightMax < height )
+            heightMax = height;
+    }
+
+    return wxSize(widthMax, heightMax);
+}
+
+wxSize wxRadioBox::GetTotalButtonSize(const wxSize& sizeBtn) const
+{
+    // the radiobox should be big enough for its buttons
+    int cx1, cy1;
+    wxGetCharSize(m_hWnd, &cx1, &cy1, &GetFont());
+
+    int extraHeight = cy1;
+
+#if defined(CTL3D) && !CTL3D
+    // Requires a bigger group box in plain Windows
+    extraHeight *= 3;
+    extraHeight /= 2;
+#endif
+
+    int height = GetNumVer() * sizeBtn.y + cy1/2 + extraHeight;
+    int width  = GetNumHor() * (sizeBtn.x + cx1) + cx1;
+
+    // and also wide enough for its label
+    int widthLabel;
+    GetTextExtent(GetTitle(), &widthLabel, NULL);
+    widthLabel += RADIO_SIZE; // FIXME this is bogus too
+    if ( widthLabel > width )
+        width = widthLabel;
+
+    return wxSize(width, height);
+}
+
+wxSize wxRadioBox::DoGetBestSize() const
+{
+    return GetTotalButtonSize(GetMaxButtonSize());

 }
 
 // Restored old code.
 }
 
 // Restored old code.


@@ -386,106 +461,89 @@ void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
     int x_offset = xx;
 #endif
 
     int x_offset = xx;
 #endif
 

-    int current_width, cyf;
-
-    int cx1,cy1;
+    int cx1, cy1;

     wxGetCharSize(m_hWnd, &cx1, &cy1, & GetFont());
 
     // Attempt to have a look coherent with other platforms: We compute the
     // biggest toggle dim, then we align all items according this value.
     wxGetCharSize(m_hWnd, &cx1, &cy1, & GetFont());
 
     // 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;
+    wxSize maxSize = GetMaxButtonSize();
+    int maxWidth = maxSize.x,
+        maxHeight = maxSize.y;

 
 

-    int i;
-    for (i = 0 ; i < m_noItems; i++)
+    wxSize totSize = GetTotalButtonSize(maxSize);
+    int totWidth = totSize.x,
+        totHeight = totSize.y;
+
+    // only change our width/height if asked for
+    if ( width == -1 )

     {
     {

-        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);
-        }
+        if ( sizeFlags & wxSIZE_AUTO_WIDTH )
+            width = totWidth;

         else
         else

-        {
-            eachWidth = m_radioWidth[i];
-            eachHeight = m_radioHeight[i];
-        }
-
-        if (maxWidth<eachWidth)
-            maxWidth = eachWidth;
-        if (maxHeight<eachHeight)
-            maxHeight = eachHeight;
+            width = widthOld;

     }
 
     }
 

-    if (m_hWnd)
+    if ( height == -1 )

     {
     {

-        int totWidth;
-        int totHeight;
-
-        int nbHor = GetNumHor(),
-            nbVer = GetNumVer();
-
-        // 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;
+        if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
+            height = totHeight;

         else
         else

-            totHeight = nbVer * (maxHeight+cy1/2);
-        totWidth  = nbHor * (maxWidth+cx1);
-
-        int extraHeight = cy1;
-
-#if defined(CTL3D) && !CTL3D
-        // Requires a bigger group box in plain Windows
-        extraHeight *= 3;
-        extraHeight /= 2;
-#endif
+            height = heightOld;
+    }

 
 

-        // only change our width/height if asked for
-        if ( width == -1 )
-        {
-            if ( sizeFlags & wxSIZE_AUTO_WIDTH )
-                width = totWidth + cx1;
-            else
-                width = widthOld;
-        }
+    ::MoveWindow(GetHwnd(), xx, yy, width, height, TRUE);

 
 

-        if ( height == -1 )
-        {
-            if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
-                height = totHeight + extraHeight;
-            else
-                height = heightOld;
-        }
+    // 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.

 
 

-        ::MoveWindow(GetHwnd(), xx, yy, width, height, TRUE);
+    // Also, remember that wxRA_SPECIFY_COLS means that we arrange buttons in
+    // left to right order and m_majorDim is the number of columns while
+    // wxRA_SPECIFY_ROWS means that the buttons are arranged top to bottom and
+    // m_majorDim is the number of rows.

 
 

-        x_offset += cx1;
-        y_offset += cy1;
-    }
+    x_offset += cx1;
+    y_offset += cy1;

 
 #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.
 #endif
 
 #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.
 #endif

+

     int startX = x_offset;
     int startY = y_offset;
 
     int startX = x_offset;
     int startY = y_offset;
 

-    for ( i = 0 ; i < m_noItems; i++)
+    for ( int i = 0; i < m_noItems; i++ )

     {
     {

-        // Bidimensional radio adjustment
-        if (i&&((i%m_majorDim)==0)) // Why is this omitted for i = 0?
+        // 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 )

         {
         {

-            if (m_windowStyle & wxRA_VERTICAL)
+            // 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
+            int n = i + 1;
+            isLastInTheRow = ((n % m_majorDim) == 0) || (n == m_noItems);
+        }
+        else // wxRA_SPECIFY_ROWS
+        {
+            // item is the last in the row if it is in the last columns
+            isLastInTheRow = i >= (m_noItems/m_majorDim)*m_majorDim;
+        }
+
+        // is this the start of new row/column?
+        if ( i && (i % m_majorDim == 0) )
+        {
+            if ( m_windowStyle & wxRA_SPECIFY_ROWS )

             {
             {

+                // start of new column

                 y_offset = startY;
                 x_offset += maxWidth + cx1;
             }
                 y_offset = startY;
                 x_offset += maxWidth + cx1;
             }

-            else
+            else // start of new row

             {
                 x_offset = startX;
                 y_offset += maxHeight;
             {
                 x_offset = startX;
                 y_offset += maxHeight;


@@ -493,23 +551,19 @@ void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
                     y_offset += cy1/2;
             }
         }
                     y_offset += cy1/2;
             }
         }

-        int eachWidth;
-        int eachHeight;
-        if (m_radioWidth[i]<0)
+
+        int widthBtn;
+        if ( isLastInTheRow )

         {
         {

-            // 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);
+            // make the button go to the end of radio box
+            widthBtn = startX + width - x_offset - 2*cx1;
+            if ( widthBtn < maxWidth )
+                widthBtn = maxWidth;

         }
         else
         {
         }
         else
         {

-            eachWidth = m_radioWidth[i];
-            eachHeight = m_radioHeight[i];
+            // normal button, always of the same size
+            widthBtn = maxWidth;

         }
 
         // VZ: make all buttons of the same, maximal size - like this they
         }
 
         // VZ: make all buttons of the same, maximal size - like this they


@@ -517,17 +571,22 @@ void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
         //     shown (otherwise they are not when the mouse pointer is in the
         //     radiobox part not belonging to any radiobutton)
         ::MoveWindow((HWND)m_radioButtons[i],
         //     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,
+                     x_offset, y_offset, widthBtn, maxHeight,

                      TRUE);
 
                      TRUE);
 

-        if (m_windowStyle & wxRA_SPECIFY_ROWS)
+        // 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
             y_offset += maxHeight;
             if (m_radioWidth[0]>0)
                 y_offset += cy1/2;
         }
         else

-            x_offset += maxWidth + cx1;
+        {
+            // to the right of this one
+            x_offset += widthBtn + cx1;
+        }

     }
 }
 
     }
 }
 


@@ -638,35 +697,12 @@ void wxRadioBox::Show(int item, bool show)
     ::ShowWindow((HWND)m_radioButtons[item], show ? SW_SHOW : SW_HIDE);
 }
 
     ::ShowWindow((HWND)m_radioButtons[item], show ? SW_SHOW : SW_HIDE);
 }
 

-// For single selection items only
-wxString wxRadioBox::GetStringSelection() const
-{
-    wxString result;
-    int sel = GetSelection();
-    if (sel > -1)
-        result = GetString(sel);
-
-    return result;
-}
-
-bool wxRadioBox::SetStringSelection(const wxString& s)
-{
-    int sel = FindString (s);
-    if (sel > -1)
-    {
-        SetSelection (sel);
-        return TRUE;
-    }
-    else
-        return FALSE;
-}
-

 bool wxRadioBox::ContainsHWND(WXHWND hWnd) const
 {
 bool wxRadioBox::ContainsHWND(WXHWND hWnd) const
 {

-    int i;
-    for (i = 0; i < Number(); i++)
+    size_t count = GetCount();
+    for ( size_t i = 0; i < count; i++ )

     {
     {

-        if (GetRadioButtons()[i] == hWnd)
+        if ( GetRadioButtons()[i] == hWnd )

             return TRUE;
     }
 
             return TRUE;
     }
 


@@ -688,7 +724,7 @@ void wxRadioBox::SubclassRadioButton(WXHWND hWndBtn)
     HWND hwndBtn = (HWND)hWndBtn;
 
     if ( !s_wndprocRadioBtn )
     HWND hwndBtn = (HWND)hWndBtn;
 
     if ( !s_wndprocRadioBtn )

-        s_wndprocRadioBtn = (WNDPROC)::GetWindowLong(hwndBtn, GWL_WNDPROC);
+        s_wndprocRadioBtn = (WXFARPROC)::GetWindowLong(hwndBtn, GWL_WNDPROC);

 
     ::SetWindowLong(hwndBtn, GWL_WNDPROC, (long)wxRadioBtnWndProc);
     ::SetWindowLong(hwndBtn, GWL_USERDATA, (long)this);
 
     ::SetWindowLong(hwndBtn, GWL_WNDPROC, (long)wxRadioBtnWndProc);
     ::SetWindowLong(hwndBtn, GWL_USERDATA, (long)this);


@@ -716,11 +752,12 @@ bool wxRadioBox::SetFont(const wxFont& font)
     WXHFONT hfont = wxFont(font).GetResourceHandle();
     for ( int n = 0; n < m_noItems; n++ )
     {
     WXHFONT hfont = wxFont(font).GetResourceHandle();
     for ( int n = 0; n < m_noItems; n++ )
     {

-        ::SendMessage((HWND)m_radioButtons[n], WM_SETFONT, (WPARAM)hfont, 0L);
-    }
+        HWND hwndBtn = (HWND)m_radioButtons[n];
+        ::SendMessage(hwndBtn, WM_SETFONT, (WPARAM)hfont, 0L);

 
 

-    // this is needed because otherwise the buttons are not redrawn correctly
-    Refresh();
+        // otherwise the buttons are not redrawn correctly
+        ::InvalidateRect(hwndBtn, NULL, FALSE /* don't erase bg */);
+    }

 
     return TRUE;
 }
 
     return TRUE;
 }


@@ -769,6 +806,46 @@ long wxRadioBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
     return wxControl::MSWWindowProc(nMsg, wParam, lParam);
 }
 
     return wxControl::MSWWindowProc(nMsg, wParam, lParam);
 }
 

+WXHBRUSH wxRadioBox::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSED(nCtlColor),
+#if wxUSE_CTL3D
+                               WXUINT message,
+                               WXWPARAM wParam,
+                               WXLPARAM lParam
+#else
+                               WXUINT WXUNUSED(message),
+                               WXWPARAM WXUNUSED(wParam),
+                               WXLPARAM WXUNUSED(lParam)
+#endif
+    )
+{
+#if wxUSE_CTL3D
+    if ( m_useCtl3D )
+    {
+        HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
+        return (WXHBRUSH) hbrush;
+    }
+#endif // wxUSE_CTL3D
+
+    HDC hdc = (HDC)pDC;
+    if (GetParent()->GetTransparentBackground())
+        SetBkMode(hdc, TRANSPARENT);
+    else
+        SetBkMode(hdc, OPAQUE);
+
+    wxColour colBack = GetBackgroundColour();
+
+    if (!IsEnabled())
+        colBack = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
+
+    ::SetBkColor(hdc, wxColourToRGB(colBack));
+    ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));
+
+    wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBack, wxSOLID);
+
+    return (WXHBRUSH)brush->GetResourceHandle();
+}
+
+

 // ---------------------------------------------------------------------------
 // window proc for radio buttons
 // ---------------------------------------------------------------------------
 // ---------------------------------------------------------------------------
 // window proc for radio buttons
 // ---------------------------------------------------------------------------


@@ -828,37 +905,41 @@ LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hwnd,
 
                 bool processed = TRUE;
 
 
                 bool processed = TRUE;
 

-                int selOld = radiobox->GetSelection();
-                int selNew = selOld;
-
+                wxDirection dir;

                 switch ( wParam )
                 {
                     case VK_UP:
                 switch ( wParam )
                 {
                     case VK_UP:

-                        selNew--;
+                        dir = wxUP;

                         break;
 
                     case VK_LEFT:
                         break;
 
                     case VK_LEFT:

-                        selNew -= radiobox->GetNumVer();
+                        dir = wxLEFT;

                         break;
 
                     case VK_DOWN:
                         break;
 
                     case VK_DOWN:

-                        selNew++;
+                        dir = wxDOWN;

                         break;
 
                     case VK_RIGHT:
                         break;
 
                     case VK_RIGHT:

-                        selNew += radiobox->GetNumVer();
+                        dir = wxRIGHT;

                         break;
 
                     default:
                         processed = FALSE;
                         break;
 
                     default:
                         processed = FALSE;

+
+                        // just to suppress the compiler warning
+                        dir = wxALL;

                 }
 
                 if ( processed )
                 {
                 }
 
                 if ( processed )
                 {

-                    // ensure that selNew is in range [0..num)
-                    int num = radiobox->Number();
-                    selNew += num;
-                    selNew %= num;
+                    int selOld = radiobox->GetSelection();
+                    int selNew = radiobox->GetNextItem
+                                 (
+                                  selOld,
+                                  dir,
+                                  radiobox->GetWindowStyle()
+                                 );

 
                     if ( selNew != selOld )
                     {
 
                     if ( selNew != selOld )
                     {


@@ -871,6 +952,49 @@ LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hwnd,
                     }
                 }
             }
                     }
                 }
             }

+            break;
+
+#ifdef __WIN32__
+        case WM_HELP:
+            {
+                wxRadioBox *radiobox = (wxRadioBox *)
+                        ::GetWindowLong(hwnd, GWL_USERDATA);
+
+                wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
+
+                bool processed = TRUE;
+
+                HELPINFO* info = (HELPINFO*) lParam;
+                // Don't yet process menu help events, just windows
+                if (info->iContextType == HELPINFO_WINDOW)
+                {
+                    wxWindow* subjectOfHelp = radiobox;
+                    bool eventProcessed = FALSE;
+                    while (subjectOfHelp && !eventProcessed)
+                    {
+                        wxHelpEvent helpEvent(wxEVT_HELP, subjectOfHelp->GetId(), wxPoint(info->MousePos.x, info->MousePos.y) ) ; // info->iCtrlId);
+                        helpEvent.SetEventObject(radiobox);
+                        eventProcessed = radiobox->GetEventHandler()->ProcessEvent(helpEvent);
+
+                        // Go up the window hierarchy until the event is handled (or not)
+                        subjectOfHelp = subjectOfHelp->GetParent();
+                    }
+                    processed = eventProcessed;
+                }
+                else if (info->iContextType == HELPINFO_MENUITEM)
+                {
+                    wxHelpEvent helpEvent(wxEVT_HELP, info->iCtrlId) ;
+                    helpEvent.SetEventObject(radiobox);
+                    processed = radiobox->GetEventHandler()->ProcessEvent(helpEvent);
+                }
+                else processed = FALSE;
+
+                if (processed)
+                    return 0;
+
+                break;
+            }
+#endif // __WIN32__

     }
 
     return ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd, message, wParam, lParam);
     }
 
     return ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd, message, wParam, lParam);


@@ -878,3 +1002,4 @@ LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hwnd,
 
 #endif // __WIN32__
 
 
 #endif // __WIN32__
 

+#endif // wxUSE_RADIOBOX