src/msw/radiobox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        radiobox.cpp
   3 // Purpose:     wxRadioBox
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ===========================================================================
  13 // declarations
  14 // ===========================================================================
  15
  16 // ---------------------------------------------------------------------------
  17 // headers
  18 // ---------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "radiobox.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include <stdio.h>
  33     #include "wx/setup.h"
  34     #include "wx/bitmap.h"
  35     #include "wx/brush.h"
  36     #include "wx/radiobox.h"
  37 #endif
  38
  39 #include "wx/msw/private.h"
  40
  41 #if !USE_SHARED_LIBRARY
  42     IMPLEMENT_DYNAMIC_CLASS(wxRadioBox, wxControl)
  43 #endif
  44
  45 // ---------------------------------------------------------------------------
  46 // private functions
  47 // ---------------------------------------------------------------------------
  48
  49 // wnd proc for radio buttons
  50 #ifdef __WIN32__
  51 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hWnd,
  52                                            UINT message,
  53                                            WPARAM wParam,
  54                                            LPARAM lParam);
  55
  56 // ---------------------------------------------------------------------------
  57 // global vars
  58 // ---------------------------------------------------------------------------
  59
  60 // the pointer to standard radio button wnd proc
  61 static WXFARPROC s_wndprocRadioBtn = (WXFARPROC)NULL;
  62
  63 #endif // __WIN32__
  64
  65 // ===========================================================================
  66 // implementation
  67 // ===========================================================================
  68
  69 // ---------------------------------------------------------------------------
  70 // wxRadioBox
  71 // ---------------------------------------------------------------------------
  72
  73 int wxRadioBox::GetNumVer() const
  74 {
  75     if ( m_windowStyle & wxRA_SPECIFY_ROWS )
  76     {
  77         return m_majorDim;
  78     }
  79     else
  80     {
  81         return (m_noItems + m_majorDim - 1)/m_majorDim;
  82     }
  83 }
  84
  85 int wxRadioBox::GetNumHor() const
  86 {
  87     if ( m_windowStyle & wxRA_SPECIFY_ROWS )
  88     {
  89         return (m_noItems + m_majorDim - 1)/m_majorDim;
  90     }
  91     else
  92     {
  93         return m_majorDim;
  94     }
  95 }
  96
  97 bool wxRadioBox::MSWCommand(WXUINT cmd, WXWORD id)
  98 {
  99     if ( cmd == BN_CLICKED )
 100     {
 101         int selectedButton = -1;
 102
 103         for ( int i = 0; i < m_noItems; i++ )
 104         {
 105             if ( id == wxGetWindowId(m_radioButtons[i]) )
 106             {
 107                 selectedButton = i;
 108
 109                 break;
 110             }
 111         }
 112
 113         wxASSERT_MSG( selectedButton != -1, "click from alien button?" );
 114
 115         if ( selectedButton != m_selectedButton )
 116         {
 117             m_selectedButton = selectedButton;
 118
 119             SendNotificationEvent();
 120         }
 121         //else: don't generate events when the selection doesn't change
 122
 123         return TRUE;
 124     }
 125     else
 126         return FALSE;
 127 }
 128
 129 #if WXWIN_COMPATIBILITY
 130 wxRadioBox::wxRadioBox(wxWindow *parent, wxFunction func, const char *title,
 131         int x, int y, int width, int height,
 132         int n, char **choices,
 133         int majorDim, long style, const char *name)
 134 {
 135     wxString *choices2 = new wxString[n];
 136     for ( int i = 0; i < n; i ++) choices2[i] = choices[i];
 137     Create(parent, -1, title, wxPoint(x, y), wxSize(width, height), n, choices2, majorDim, style,
 138             wxDefaultValidator, name);
 139     Callback(func);
 140     delete choices2;
 141 }
 142
 143 #endif
 144
 145 // Radio box item
 146 wxRadioBox::wxRadioBox()
 147 {
 148     m_selectedButton = -1;
 149     m_noItems = 0;
 150     m_noRowsOrCols = 0;
 151     m_radioButtons = NULL;
 152     m_majorDim = 0;
 153     m_radioWidth = NULL;
 154     m_radioHeight = NULL;
 155 }
 156
 157 bool wxRadioBox::Create(wxWindow *parent, wxWindowID id, const wxString& title,
 158         const wxPoint& pos, const wxSize& size,
 159         int n, const wxString choices[],
 160         int majorDim, long style,
 161         const wxValidator& val, const wxString& name)
 162 {
 163     m_selectedButton = -1;
 164     m_noItems = n;
 165
 166     SetName(name);
 167     SetValidator(val);
 168
 169     parent->AddChild(this);
 170     m_backgroundColour = parent->GetBackgroundColour();
 171     m_foregroundColour = parent->GetForegroundColour();
 172
 173     m_windowStyle = (long&)style;
 174
 175     int x = pos.x;
 176     int y = pos.y;
 177     int width = size.x;
 178     int height = size.y;
 179
 180     if (id == -1)
 181         m_windowId = NewControlId();
 182     else
 183         m_windowId = id;
 184
 185     if ( majorDim == 0 )
 186         m_majorDim = n;
 187     else
 188         m_majorDim = majorDim;
 189     m_noRowsOrCols = majorDim;
 190
 191     long msStyle = GROUP_FLAGS;
 192
 193     bool want3D;
 194     WXDWORD exStyle = Determine3DEffects(0, &want3D);
 195
 196     HWND hwndParent = (HWND)parent->GetHWND();
 197
 198     m_hWnd = (WXHWND)::CreateWindowEx
 199                         (
 200                          (DWORD)exStyle,
 201                          GROUP_CLASS,
 202                          title,
 203                          msStyle,
 204                          0, 0, 0, 0,
 205                          hwndParent,
 206                          (HMENU)m_windowId,
 207                          wxGetInstance(),
 208                          NULL
 209                         );
 210
 211 #if wxUSE_CTL3D
 212     if (want3D)
 213     {
 214         Ctl3dSubclassCtl((HWND)m_hWnd);
 215         m_useCtl3D = TRUE;
 216     }
 217 #endif // wxUSE_CTL3D
 218
 219     SetFont(parent->GetFont());
 220
 221     SubclassWin(m_hWnd);
 222
 223     // Some radio boxes test consecutive id.
 224     (void)NewControlId();
 225     m_radioButtons = new WXHWND[n];
 226     m_radioWidth = new int[n];
 227     m_radioHeight = new int[n];
 228     int i;
 229     for (i = 0; i < n; i++)
 230     {
 231         m_radioWidth[i] = m_radioHeight[i] = -1;
 232         long groupStyle = 0;
 233         if ( i == 0 && style == 0 )
 234             groupStyle = WS_GROUP;
 235         long newId = NewControlId();
 236         long msStyle = groupStyle | RADIO_FLAGS;
 237
 238         HWND hwndBtn = CreateWindowEx(exStyle, RADIO_CLASS,
 239                                       choices[i], msStyle,
 240                                       0,0,0,0,
 241                                       hwndParent,
 242                                       (HMENU)newId, wxGetInstance(),
 243                                       NULL);
 244
 245         m_radioButtons[i] = (WXHWND)hwndBtn;
 246
 247         SubclassRadioButton((WXHWND)hwndBtn);
 248
 249         wxFont& font = GetFont();
 250         if ( font.Ok() )
 251         {
 252             SendMessage(hwndBtn, WM_SETFONT,
 253                         (WPARAM)font.GetResourceHandle(), 0L);
 254         }
 255
 256         m_subControls.Append((wxObject *)(WXWORD)newId);
 257     }
 258
 259     // Create a dummy radio control to end the group.
 260     (void)CreateWindowEx(0, RADIO_CLASS, "", WS_GROUP | RADIO_FLAGS,
 261                          0, 0, 0, 0, hwndParent,
 262                          (HMENU)NewControlId(), wxGetInstance(), NULL);
 263
 264     SetSelection(0);
 265
 266     SetSize(x, y, width, height);
 267
 268     return TRUE;
 269 }
 270
 271 wxRadioBox::~wxRadioBox()
 272 {
 273     m_isBeingDeleted = TRUE;
 274
 275     if (m_radioButtons)
 276     {
 277         int i;
 278         for (i = 0; i < m_noItems; i++)
 279             ::DestroyWindow((HWND)m_radioButtons[i]);
 280         delete[] m_radioButtons;
 281     }
 282
 283     if (m_radioWidth)
 284         delete[] m_radioWidth;
 285     if (m_radioHeight)
 286         delete[] m_radioHeight;
 287
 288 }
 289
 290 void wxRadioBox::SetLabel(int item, const wxString& label)
 291 {
 292     m_radioWidth[item] = m_radioHeight[item] = -1;
 293     SetWindowText((HWND)m_radioButtons[item], label.c_str());
 294 }
 295
 296 void wxRadioBox::SetLabel(int item, wxBitmap *bitmap)
 297 {
 298     /*
 299        m_radioWidth[item] = bitmap->GetWidth() + FB_MARGIN;
 300        m_radioHeight[item] = bitmap->GetHeight() + FB_MARGIN;
 301      */
 302     wxFAIL_MSG("not implemented");
 303 }
 304
 305 int wxRadioBox::FindString(const wxString& s) const
 306 {
 307     for (int i = 0; i < m_noItems; i++)
 308     {
 309         if ( s == wxGetWindowText(m_radioButtons[i]) )
 310             return i;
 311     }
 312
 313     return wxNOT_FOUND;
 314 }
 315
 316 void wxRadioBox::SetSelection(int N)
 317 {
 318     wxCHECK_RET( (N >= 0) && (N < m_noItems), "invalid radiobox index" );
 319
 320     // Following necessary for Win32s, because Win32s translate BM_SETCHECK
 321     if (m_selectedButton >= 0 && m_selectedButton < m_noItems)
 322         ::SendMessage((HWND) m_radioButtons[m_selectedButton], BM_SETCHECK, 0, 0L);
 323
 324     ::SendMessage((HWND)m_radioButtons[N], BM_SETCHECK, 1, 0L);
 325     ::SetFocus((HWND)m_radioButtons[N]);
 326
 327     m_selectedButton = N;
 328 }
 329
 330 // Get single selection, for single choice list items
 331 int wxRadioBox::GetSelection() const
 332 {
 333     return m_selectedButton;
 334 }
 335
 336 // Find string for position
 337 wxString wxRadioBox::GetString(int N) const
 338 {
 339     return wxGetWindowText(m_radioButtons[N]);
 340 }
 341
 342 // Restored old code.
 343 void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 344 {
 345   int currentX, currentY;
 346   GetPosition(&currentX, &currentY);
 347   int xx = x;
 348   int yy = y;
 349
 350   if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 351     xx = currentX;
 352   if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 353     yy = currentY;
 354
 355   char buf[400];
 356
 357   int y_offset = yy;
 358   int x_offset = xx;
 359   int current_width, cyf;
 360
 361   int cx1,cy1;
 362   wxGetCharSize(m_hWnd, &cx1, &cy1, & GetFont());
 363   // Attempt to have a look coherent with other platforms:
 364   // We compute the biggest toggle dim, then we align all
 365   // items according this value.
 366   int maxWidth =  -1;
 367   int maxHeight = -1;
 368
 369   int i;
 370   for (i = 0 ; i < m_noItems; i++)
 371   {
 372     int eachWidth;
 373     int eachHeight;
 374     if (m_radioWidth[i]<0)
 375     {
 376       // It's a labelled toggle
 377       GetWindowText((HWND) m_radioButtons[i], buf, 300);
 378       GetTextExtent(buf, &current_width, &cyf,NULL,NULL, & GetFont());
 379       eachWidth = (int)(current_width + RADIO_SIZE);
 380       eachHeight = (int)((3*cyf)/2);
 381     }
 382     else
 383     {
 384       eachWidth = m_radioWidth[i];
 385       eachHeight = m_radioHeight[i];
 386     }
 387     if (maxWidth<eachWidth) maxWidth = eachWidth;
 388     if (maxHeight<eachHeight) maxHeight = eachHeight;
 389   }
 390
 391   if (m_hWnd)
 392   {
 393     int totWidth;
 394     int totHeight;
 395
 396     int nbHor = GetNumHor(),
 397         nbVer = GetNumVer();
 398
 399     // this formula works, but I don't know why.
 400     // Please, be sure what you do if you modify it!!
 401     if (m_radioWidth[0]<0)
 402       totHeight = (nbVer * maxHeight) + cy1/2;
 403     else
 404       totHeight = nbVer * (maxHeight+cy1/2);
 405     totWidth  = nbHor * (maxWidth+cx1);
 406
 407 #if (!CTL3D)
 408     // Requires a bigger group box in plain Windows
 409     MoveWindow((HWND) m_hWnd,x_offset,y_offset,totWidth+cx1,totHeight+(3*cy1)/2,TRUE);
 410 #else
 411     MoveWindow((HWND) m_hWnd,x_offset,y_offset,totWidth+cx1,totHeight+cy1,TRUE);
 412 #endif
 413     x_offset += cx1;
 414     y_offset += cy1;
 415   }
 416
 417 #if (!CTL3D)
 418   y_offset += (int)(cy1/2); // Fudge factor since buttons overlapped label
 419                             // JACS 2/12/93. CTL3D draws group label quite high.
 420 #endif
 421   int startX = x_offset;
 422   int startY = y_offset;
 423
 424   for ( i = 0 ; i < m_noItems; i++)
 425   {
 426     // Bidimensional radio adjustment
 427     if (i&&((i%m_majorDim)==0)) // Why is this omitted for i = 0?
 428     {
 429       if (m_windowStyle & wxRA_VERTICAL)
 430       {
 431         y_offset = startY;
 432         x_offset += maxWidth + cx1;
 433       }
 434       else
 435       {
 436         x_offset = startX;
 437         y_offset += maxHeight;
 438         if (m_radioWidth[0]>0)
 439           y_offset += cy1/2;
 440       }
 441     }
 442     int eachWidth;
 443     int eachHeight;
 444     if (m_radioWidth[i]<0)
 445     {
 446       // It's a labeled item
 447       GetWindowText((HWND) m_radioButtons[i], buf, 300);
 448       GetTextExtent(buf, &current_width, &cyf,NULL,NULL, & GetFont());
 449
 450       // How do we find out radio button bitmap size!!
 451       // By adjusting them carefully, manually :-)
 452       eachWidth = (int)(current_width + RADIO_SIZE);
 453       eachHeight = (int)((3*cyf)/2);
 454     }
 455     else
 456     {
 457       eachWidth = m_radioWidth[i];
 458       eachHeight = m_radioHeight[i];
 459     }
 460
 461     MoveWindow((HWND) m_radioButtons[i],x_offset,y_offset,eachWidth,eachHeight,TRUE);
 462     if (m_windowStyle & wxRA_SPECIFY_ROWS)
 463     {
 464       y_offset += maxHeight;
 465       if (m_radioWidth[0]>0)
 466         y_offset += cy1/2;
 467     }
 468     else
 469       x_offset += maxWidth + cx1;
 470   }
 471 }
 472
 473
 474 void wxRadioBox::GetSize(int *width, int *height) const
 475 {
 476     RECT rect;
 477     rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
 478
 479     if (m_hWnd)
 480         wxFindMaxSize(m_hWnd, &rect);
 481
 482     int i;
 483     for (i = 0; i < m_noItems; i++)
 484         wxFindMaxSize(m_radioButtons[i], &rect);
 485
 486     *width = rect.right - rect.left;
 487     *height = rect.bottom - rect.top;
 488 }
 489
 490 void wxRadioBox::GetPosition(int *x, int *y) const
 491 {
 492     wxWindow *parent = GetParent();
 493     RECT rect;
 494     rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
 495
 496     int i;
 497     for (i = 0; i < m_noItems; i++)
 498         wxFindMaxSize(m_radioButtons[i], &rect);
 499
 500     if (m_hWnd)
 501         wxFindMaxSize(m_hWnd, &rect);
 502
 503     // Since we now have the absolute screen coords,
 504     // if there's a parent we must subtract its top left corner
 505     POINT point;
 506     point.x = rect.left;
 507     point.y = rect.top;
 508     if (parent)
 509     {
 510         ::ScreenToClient((HWND) parent->GetHWND(), &point);
 511     }
 512     // We may be faking the client origin.
 513     // So a window that's really at (0, 30) may appear
 514     // (to wxWin apps) to be at (0, 0).
 515     if (GetParent())
 516     {
 517         wxPoint pt(GetParent()->GetClientAreaOrigin());
 518         point.x -= pt.x;
 519         point.y -= pt.y;
 520     }
 521
 522     *x = point.x;
 523     *y = point.y;
 524 }
 525
 526 void wxRadioBox::SetFocus()
 527 {
 528     if (m_noItems > 0)
 529     {
 530         if (m_selectedButton == -1)
 531             ::SetFocus((HWND) m_radioButtons[0]);
 532         else
 533             ::SetFocus((HWND) m_radioButtons[m_selectedButton]);
 534     }
 535
 536 }
 537
 538 bool wxRadioBox::Show(bool show)
 539 {
 540     if ( !wxControl::Show(show) )
 541         return FALSE;
 542
 543     int nCmdShow = show ? SW_SHOW : SW_HIDE;
 544     for ( int i = 0; i < m_noItems; i++ )
 545     {
 546         ::ShowWindow((HWND)m_radioButtons[i], nCmdShow);
 547     }
 548
 549     return TRUE;
 550 }
 551
 552 // Enable a specific button
 553 void wxRadioBox::Enable(int item, bool enable)
 554 {
 555     wxCHECK_RET( item >= 0 && item < m_noItems,
 556                  _T("invalid item in wxRadioBox::Enable()") );
 557
 558     ::EnableWindow((HWND) m_radioButtons[item], enable);
 559 }
 560
 561 // Enable all controls
 562 bool wxRadioBox::Enable(bool enable)
 563 {
 564     if ( !wxControl::Enable(enable) )
 565         return FALSE;
 566
 567     for (int i = 0; i < m_noItems; i++)
 568         ::EnableWindow((HWND) m_radioButtons[i], enable);
 569
 570     return TRUE;
 571 }
 572
 573 // Show a specific button
 574 void wxRadioBox::Show(int item, bool show)
 575 {
 576     wxCHECK_RET( item >= 0 && item < m_noItems,
 577                  _T("invalid item in wxRadioBox::Show()") );
 578
 579     ::ShowWindow((HWND)m_radioButtons[item], show ? SW_SHOW : SW_HIDE);
 580 }
 581
 582 WXHBRUSH wxRadioBox::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
 583         WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
 584 {
 585 #if wxUSE_CTL3D
 586     if ( m_useCtl3D )
 587     {
 588         HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
 589         return (WXHBRUSH) hbrush;
 590     }
 591 #endif
 592
 593     if (GetParent()->GetTransparentBackground())
 594         SetBkMode((HDC) pDC, TRANSPARENT);
 595     else
 596         SetBkMode((HDC) pDC, OPAQUE);
 597
 598     ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
 599     ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
 600
 601     wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
 602
 603     return (WXHBRUSH) backgroundBrush->GetResourceHandle();
 604 }
 605
 606 // For single selection items only
 607 wxString wxRadioBox::GetStringSelection() const
 608 {
 609     wxString result;
 610     int sel = GetSelection();
 611     if (sel > -1)
 612         result = GetString(sel);
 613
 614     return result;
 615 }
 616
 617 bool wxRadioBox::SetStringSelection(const wxString& s)
 618 {
 619     int sel = FindString (s);
 620     if (sel > -1)
 621     {
 622         SetSelection (sel);
 623         return TRUE;
 624     }
 625     else
 626         return FALSE;
 627 }
 628
 629 bool wxRadioBox::ContainsHWND(WXHWND hWnd) const
 630 {
 631     int i;
 632     for (i = 0; i < Number(); i++)
 633     {
 634         if (GetRadioButtons()[i] == hWnd)
 635             return TRUE;
 636     }
 637
 638     return FALSE;
 639 }
 640
 641 void wxRadioBox::Command (wxCommandEvent & event)
 642 {
 643     SetSelection (event.m_commandInt);
 644     ProcessCommand (event);
 645 }
 646
 647 long wxRadioBox::MSWWindowProc(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam)
 648 {
 649     long rc = 0;
 650     bool processed = FALSE;
 651
 652     switch ( msg )
 653     {
 654         case WM_NCHITTEST:
 655             {
 656                 int xPos = LOWORD(lParam);  // horizontal position of cursor
 657                 int yPos = HIWORD(lParam);  // vertical position of cursor
 658
 659                 ScreenToClient(&xPos, &yPos);
 660
 661                 // Make sure you can drag by the top of the groupbox, but let
 662                 // other (enclosed) controls get mouse events also
 663                 if ( yPos < 10 )
 664                 {
 665                     rc = HTCLIENT;
 666                     processed = TRUE;
 667                 }
 668             }
 669             break;
 670     }
 671
 672     if ( !processed )
 673         rc = wxControl::MSWWindowProc(msg, wParam, lParam);
 674
 675     return rc;
 676 }
 677
 678 void wxRadioBox::SubclassRadioButton(WXHWND hWndBtn)
 679 {
 680 #ifdef __WIN32__
 681     HWND hwndBtn = (HWND)hWndBtn;
 682
 683     if ( !s_wndprocRadioBtn )
 684         s_wndprocRadioBtn = (WXFARPROC)::GetWindowLong(hwndBtn, GWL_WNDPROC);
 685
 686     // No GWL_USERDATA in Win16, so omit this subclassing.
 687     ::SetWindowLong(hwndBtn, GWL_WNDPROC, (long)wxRadioBtnWndProc);
 688     ::SetWindowLong(hwndBtn, GWL_USERDATA, (long)this);
 689 #endif // __WIN32__
 690 }
 691
 692 void wxRadioBox::SendNotificationEvent()
 693 {
 694     wxCommandEvent event(wxEVT_COMMAND_RADIOBOX_SELECTED, m_windowId);
 695     event.SetInt( m_selectedButton );
 696     event.SetEventObject( this );
 697     ProcessCommand(event);
 698 }
 699
 700 // ---------------------------------------------------------------------------
 701 // window proc for radio buttons
 702 // ---------------------------------------------------------------------------
 703
 704 #ifdef __WIN32__
 705
 706 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hwnd,
 707                                            UINT msg,
 708                                            WPARAM wParam,
 709                                            LPARAM lParam)
 710 {
 711     bool processed = TRUE;
 712     if ( msg != WM_KEYDOWN )
 713         processed = FALSE;
 714
 715     if ( processed )
 716     {
 717         wxRadioBox *radiobox = (wxRadioBox *)::GetWindowLong(hwnd, GWL_USERDATA);
 718
 719         wxCHECK_MSG( radiobox, 0, "radio button without radio box?" );
 720
 721         int sel = radiobox->GetSelection();
 722
 723         switch ( wParam )
 724         {
 725             case VK_UP:
 726                 sel--;
 727                 break;
 728
 729             case VK_LEFT:
 730                 sel -= radiobox->GetNumVer();
 731                 break;
 732
 733             case VK_DOWN:
 734                 sel++;
 735                 break;
 736
 737             case VK_RIGHT:
 738                 sel += radiobox->GetNumVer();
 739                 break;
 740
 741             case VK_TAB:
 742                 {
 743                     wxNavigationKeyEvent event;
 744                     event.SetDirection(!(::GetKeyState(VK_SHIFT) & 0x100));
 745                     event.SetWindowChange(FALSE);
 746                     event.SetEventObject(radiobox);
 747
 748                     if ( radiobox->GetEventHandler()->ProcessEvent(event) )
 749                         return 0;
 750                 }
 751                 // fall through
 752
 753             default:
 754                 processed = FALSE;
 755         }
 756
 757         if ( processed )
 758         {
 759             if ( sel >= 0 && sel < radiobox->Number() )
 760             {
 761                 radiobox->SetSelection(sel);
 762
 763                 // emulate the button click
 764                 radiobox->SendNotificationEvent();
 765             }
 766         }
 767     }
 768
 769     if ( !processed )
 770         return ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd, msg, wParam, lParam);
 771     else
 772         return 0;
 773 }
 774
 775 #endif // __WIN32__
 776