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 "wx/bitmap.h"
  33     #include "wx/brush.h"
  34     #include "wx/radiobox.h"
  35     #include "wx/log.h"
  36 #endif
  37
  38 #include "wx/msw/private.h"
  39
  40 #if wxUSE_TOOLTIPS
  41     #include <commctrl.h>
  42
  43     #include "wx/tooltip.h"
  44 #endif // wxUSE_TOOLTIPS
  45
  46 #if !USE_SHARED_LIBRARY
  47     IMPLEMENT_DYNAMIC_CLASS(wxRadioBox, wxControl)
  48 #endif
  49
  50 // VZ: the new behaviour is to create the radio buttons as children of the
  51 //     radiobox instead of creating them as children of the radiobox' parent.
  52 //
  53 //     This seems more logical, more consistent with what other frameworks do
  54 //     and allows tooltips to work with radioboxes, so there should be no
  55 //     reason to revert to the backward compatible behaviour - but I still
  56 //     leave this possibility just in case.
  57 #define RADIOBTN_PARENT_IS_RADIOBOX 1
  58
  59 // ---------------------------------------------------------------------------
  60 // private functions
  61 // ---------------------------------------------------------------------------
  62
  63 // wnd proc for radio buttons
  64 #ifdef __WIN32__
  65 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hWnd,
  66                                            UINT message,
  67                                            WPARAM wParam,
  68                                            LPARAM lParam);
  69
  70 // ---------------------------------------------------------------------------
  71 // global vars
  72 // ---------------------------------------------------------------------------
  73
  74 // the pointer to standard radio button wnd proc
  75 static WXFARPROC s_wndprocRadioBtn = (WXFARPROC)NULL;
  76
  77 #endif // __WIN32__
  78
  79 // ===========================================================================
  80 // implementation
  81 // ===========================================================================
  82
  83 // ---------------------------------------------------------------------------
  84 // wxRadioBox
  85 // ---------------------------------------------------------------------------
  86
  87 int wxRadioBox::GetNumVer() const
  88 {
  89     if ( m_windowStyle & wxRA_SPECIFY_ROWS )
  90     {
  91         return m_majorDim;
  92     }
  93     else
  94     {
  95         return (m_noItems + m_majorDim - 1)/m_majorDim;
  96     }
  97 }
  98
  99 int wxRadioBox::GetNumHor() const
 100 {
 101     if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 102     {
 103         return (m_noItems + m_majorDim - 1)/m_majorDim;
 104     }
 105     else
 106     {
 107         return m_majorDim;
 108     }
 109 }
 110
 111 bool wxRadioBox::MSWCommand(WXUINT cmd, WXWORD id)
 112 {
 113     if ( cmd == BN_CLICKED )
 114     {
 115         int selectedButton = -1;
 116
 117         for ( int i = 0; i < m_noItems; i++ )
 118         {
 119             if ( id == wxGetWindowId(m_radioButtons[i]) )
 120             {
 121                 selectedButton = i;
 122
 123                 break;
 124             }
 125         }
 126
 127         wxASSERT_MSG( selectedButton != -1, wxT("click from alien button?") );
 128
 129         if ( selectedButton != m_selectedButton )
 130         {
 131             m_selectedButton = selectedButton;
 132
 133             SendNotificationEvent();
 134         }
 135         //else: don't generate events when the selection doesn't change
 136
 137         return TRUE;
 138     }
 139     else
 140         return FALSE;
 141 }
 142
 143 #if WXWIN_COMPATIBILITY
 144 wxRadioBox::wxRadioBox(wxWindow *parent, wxFunction func, const char *title,
 145         int x, int y, int width, int height,
 146         int n, char **choices,
 147         int majorDim, long style, const char *name)
 148 {
 149     wxString *choices2 = new wxString[n];
 150     for ( int i = 0; i < n; i ++) choices2[i] = choices[i];
 151     Create(parent, -1, title, wxPoint(x, y), wxSize(width, height), n, choices2, majorDim, style,
 152             wxDefaultValidator, name);
 153     Callback(func);
 154     delete choices2;
 155 }
 156
 157 #endif
 158
 159 // Radio box item
 160 wxRadioBox::wxRadioBox()
 161 {
 162     m_selectedButton = -1;
 163     m_noItems = 0;
 164     m_noRowsOrCols = 0;
 165     m_radioButtons = NULL;
 166     m_majorDim = 0;
 167     m_radioWidth = NULL;
 168     m_radioHeight = NULL;
 169 }
 170
 171 bool wxRadioBox::Create(wxWindow *parent,
 172                         wxWindowID id,
 173                         const wxString& title,
 174                         const wxPoint& pos,
 175                         const wxSize& size,
 176                         int n,
 177                         const wxString choices[],
 178                         int majorDim,
 179                         long style,
 180                         const wxValidator& val,
 181                         const wxString& name)
 182 {
 183     // initialize members
 184     m_selectedButton = -1;
 185     m_noItems = n;
 186
 187     m_majorDim =  majorDim == 0 ? n : majorDim;
 188     m_noRowsOrCols = majorDim;
 189
 190     // common initialization
 191     if ( !CreateControl(parent, id, pos, size, style, val, name) )
 192         return FALSE;
 193
 194     // create the static box
 195     if ( !MSWCreateControl(wxT("BUTTON"), BS_GROUPBOX, pos, size, title, 0) )
 196         return FALSE;
 197
 198     // and now create the buttons
 199 #if RADIOBTN_PARENT_IS_RADIOBOX
 200     HWND hwndParent = GetHwnd();
 201 #else
 202     HWND hwndParent = GetHwndOf(parent);
 203 #endif
 204
 205     // Some radio boxes test consecutive id.
 206     (void)NewControlId();
 207     m_radioButtons = new WXHWND[n];
 208     m_radioWidth = new int[n];
 209     m_radioHeight = new int[n];
 210
 211     WXHFONT hfont = 0;
 212     wxFont& font = GetFont();
 213     if ( font.Ok() )
 214     {
 215         hfont = font.GetResourceHandle();
 216     }
 217
 218     for ( int i = 0; i < n; i++ )
 219     {
 220         m_radioWidth[i] =
 221         m_radioHeight[i] = -1;
 222         long styleBtn = BS_AUTORADIOBUTTON | WS_CHILD | WS_VISIBLE;
 223         if ( i == 0 && style == 0 )
 224             styleBtn |= WS_GROUP;
 225
 226         long newId = NewControlId();
 227
 228         HWND hwndBtn = ::CreateWindow(_T("BUTTON"),
 229                                       choices[i],
 230                                       styleBtn,
 231                                       0, 0, 0, 0,   // will be set in SetSize()
 232                                       hwndParent,
 233                                       (HMENU)newId,
 234                                       wxGetInstance(),
 235                                       NULL);
 236
 237         if ( !hwndBtn )
 238         {
 239             wxLogLastError("CreateWindow(radio btn)");
 240
 241             return FALSE;
 242         }
 243
 244         m_radioButtons[i] = (WXHWND)hwndBtn;
 245
 246         SubclassRadioButton((WXHWND)hwndBtn);
 247
 248         if ( hfont )
 249         {
 250             ::SendMessage(hwndBtn, WM_SETFONT, (WPARAM)hfont, 0L);
 251         }
 252
 253         m_subControls.Add(newId);
 254     }
 255
 256     // Create a dummy radio control to end the group.
 257     (void)::CreateWindow(_T("BUTTON"),
 258                          _T(""),
 259                          WS_GROUP | BS_AUTORADIOBUTTON | WS_CHILD,
 260                          0, 0, 0, 0, hwndParent,
 261                          (HMENU)NewControlId(), wxGetInstance(), NULL);
 262
 263     SetSelection(0);
 264
 265     SetSize(pos.x, pos.y, size.x, size.y);
 266
 267     return TRUE;
 268 }
 269
 270 wxRadioBox::~wxRadioBox()
 271 {
 272     m_isBeingDeleted = TRUE;
 273
 274     if (m_radioButtons)
 275     {
 276         int i;
 277         for (i = 0; i < m_noItems; i++)
 278             ::DestroyWindow((HWND)m_radioButtons[i]);
 279         delete[] m_radioButtons;
 280     }
 281
 282     if (m_radioWidth)
 283         delete[] m_radioWidth;
 284     if (m_radioHeight)
 285         delete[] m_radioHeight;
 286
 287 }
 288
 289 wxString wxRadioBox::GetLabel(int item) const
 290 {
 291     wxCHECK_MSG( item >= 0 && item < m_noItems, wxT(""), wxT("invalid radiobox index") );
 292
 293     return wxGetWindowText(m_radioButtons[item]);
 294 }
 295
 296 void wxRadioBox::SetLabel(int item, const wxString& label)
 297 {
 298     wxCHECK_RET( item >= 0 && item < m_noItems, wxT("invalid radiobox index") );
 299
 300     m_radioWidth[item] = m_radioHeight[item] = -1;
 301     SetWindowText((HWND)m_radioButtons[item], label.c_str());
 302 }
 303
 304 void wxRadioBox::SetLabel(int item, wxBitmap *bitmap)
 305 {
 306     /*
 307        m_radioWidth[item] = bitmap->GetWidth() + FB_MARGIN;
 308        m_radioHeight[item] = bitmap->GetHeight() + FB_MARGIN;
 309      */
 310     wxFAIL_MSG(wxT("not implemented"));
 311 }
 312
 313 int wxRadioBox::FindString(const wxString& s) const
 314 {
 315     for (int i = 0; i < m_noItems; i++)
 316     {
 317         if ( s == wxGetWindowText(m_radioButtons[i]) )
 318             return i;
 319     }
 320
 321     return wxNOT_FOUND;
 322 }
 323
 324 void wxRadioBox::SetSelection(int N)
 325 {
 326     wxCHECK_RET( (N >= 0) && (N < m_noItems), wxT("invalid radiobox index") );
 327
 328     // Following necessary for Win32s, because Win32s translate BM_SETCHECK
 329     if (m_selectedButton >= 0 && m_selectedButton < m_noItems)
 330         ::SendMessage((HWND) m_radioButtons[m_selectedButton], BM_SETCHECK, 0, 0L);
 331
 332     ::SendMessage((HWND)m_radioButtons[N], BM_SETCHECK, 1, 0L);
 333     ::SetFocus((HWND)m_radioButtons[N]);
 334
 335     m_selectedButton = N;
 336 }
 337
 338 // Get single selection, for single choice list items
 339 int wxRadioBox::GetSelection() const
 340 {
 341     return m_selectedButton;
 342 }
 343
 344 // Find string for position
 345 wxString wxRadioBox::GetString(int N) const
 346 {
 347     return wxGetWindowText(m_radioButtons[N]);
 348 }
 349
 350 // Restored old code.
 351 void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 352 {
 353     int currentX, currentY;
 354     GetPosition(&currentX, &currentY);
 355     int widthOld, heightOld;
 356     GetSize(&widthOld, &heightOld);
 357
 358     int xx = x;
 359     int yy = y;
 360
 361     if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 362         xx = currentX;
 363     if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 364         yy = currentY;
 365
 366 #if RADIOBTN_PARENT_IS_RADIOBOX
 367     int y_offset = 0;
 368     int x_offset = 0;
 369 #else
 370     int y_offset = yy;
 371     int x_offset = xx;
 372 #endif
 373
 374     int current_width, cyf;
 375
 376     int cx1,cy1;
 377     wxGetCharSize(m_hWnd, &cx1, &cy1, & GetFont());
 378
 379     // Attempt to have a look coherent with other platforms: We compute the
 380     // biggest toggle dim, then we align all items according this value.
 381     int maxWidth =  -1;
 382     int maxHeight = -1;
 383
 384     int i;
 385     for (i = 0 ; i < m_noItems; i++)
 386     {
 387         int eachWidth;
 388         int eachHeight;
 389         if (m_radioWidth[i]<0)
 390         {
 391             // It's a labelled toggle
 392             GetTextExtent(wxGetWindowText(m_radioButtons[i]),
 393                           &current_width, &cyf);
 394             eachWidth = (int)(current_width + RADIO_SIZE);
 395             eachHeight = (int)((3*cyf)/2);
 396         }
 397         else
 398         {
 399             eachWidth = m_radioWidth[i];
 400             eachHeight = m_radioHeight[i];
 401         }
 402
 403         if (maxWidth<eachWidth)
 404             maxWidth = eachWidth;
 405         if (maxHeight<eachHeight)
 406             maxHeight = eachHeight;
 407     }
 408
 409     if (m_hWnd)
 410     {
 411         int totWidth;
 412         int totHeight;
 413
 414         int nbHor = GetNumHor(),
 415             nbVer = GetNumVer();
 416
 417         // this formula works, but I don't know why.
 418         // Please, be sure what you do if you modify it!!
 419         if (m_radioWidth[0]<0)
 420             totHeight = (nbVer * maxHeight) + cy1/2;
 421         else
 422             totHeight = nbVer * (maxHeight+cy1/2);
 423         totWidth  = nbHor * (maxWidth+cx1);
 424
 425         int extraHeight = cy1;
 426
 427 #if defined(CTL3D) && !CTL3D
 428         // Requires a bigger group box in plain Windows
 429         extraHeight *= 3;
 430         extraHeight /= 2;
 431 #endif
 432
 433         // only change our width/height if asked for
 434         if ( width == -1 )
 435         {
 436             if ( sizeFlags & wxSIZE_AUTO_WIDTH )
 437                 width = totWidth + cx1;
 438             else
 439                 width = widthOld;
 440         }
 441
 442         if ( height == -1 )
 443         {
 444             if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
 445                 height = totHeight + extraHeight;
 446             else
 447                 height = heightOld;
 448         }
 449
 450         ::MoveWindow(GetHwnd(), xx, yy, width, height, TRUE);
 451
 452         x_offset += cx1;
 453         y_offset += cy1;
 454     }
 455
 456 #if defined(CTL3D) && (!CTL3D)
 457     y_offset += (int)(cy1/2); // Fudge factor since buttons overlapped label
 458     // JACS 2/12/93. CTL3D draws group label quite high.
 459 #endif
 460     int startX = x_offset;
 461     int startY = y_offset;
 462
 463     for ( i = 0 ; i < m_noItems; i++)
 464     {
 465         // Bidimensional radio adjustment
 466         if (i&&((i%m_majorDim)==0)) // Why is this omitted for i = 0?
 467         {
 468             if (m_windowStyle & wxRA_VERTICAL)
 469             {
 470                 y_offset = startY;
 471                 x_offset += maxWidth + cx1;
 472             }
 473             else
 474             {
 475                 x_offset = startX;
 476                 y_offset += maxHeight;
 477                 if (m_radioWidth[0]>0)
 478                     y_offset += cy1/2;
 479             }
 480         }
 481         int eachWidth;
 482         int eachHeight;
 483         if (m_radioWidth[i]<0)
 484         {
 485             // It's a labeled item
 486             GetTextExtent(wxGetWindowText(m_radioButtons[i]),
 487                           &current_width, &cyf);
 488
 489             // How do we find out radio button bitmap size!!
 490             // By adjusting them carefully, manually :-)
 491             eachWidth = (int)(current_width + RADIO_SIZE);
 492             eachHeight = (int)((3*cyf)/2);
 493         }
 494         else
 495         {
 496             eachWidth = m_radioWidth[i];
 497             eachHeight = m_radioHeight[i];
 498         }
 499
 500         // VZ: make all buttons of the same, maximal size - like this they
 501         //     cover the radiobox entirely and the radiobox tooltips are always
 502         //     shown (otherwise they are not when the mouse pointer is in the
 503         //     radiobox part not belonging to any radiobutton)
 504         ::MoveWindow((HWND)m_radioButtons[i],
 505                      x_offset, y_offset, maxWidth, maxHeight,
 506                      TRUE);
 507
 508         if (m_windowStyle & wxRA_SPECIFY_ROWS)
 509         {
 510             y_offset += maxHeight;
 511             if (m_radioWidth[0]>0)
 512                 y_offset += cy1/2;
 513         }
 514         else
 515             x_offset += maxWidth + cx1;
 516     }
 517 }
 518
 519 void wxRadioBox::GetSize(int *width, int *height) const
 520 {
 521     RECT rect;
 522     rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
 523
 524     if (m_hWnd)
 525         wxFindMaxSize(m_hWnd, &rect);
 526
 527     int i;
 528     for (i = 0; i < m_noItems; i++)
 529         wxFindMaxSize(m_radioButtons[i], &rect);
 530
 531     *width = rect.right - rect.left;
 532     *height = rect.bottom - rect.top;
 533 }
 534
 535 void wxRadioBox::GetPosition(int *x, int *y) const
 536 {
 537     wxWindow *parent = GetParent();
 538     RECT rect = { -1, -1, -1, -1 };
 539
 540     int i;
 541     for (i = 0; i < m_noItems; i++)
 542         wxFindMaxSize(m_radioButtons[i], &rect);
 543
 544     if (m_hWnd)
 545         wxFindMaxSize(m_hWnd, &rect);
 546
 547     // Since we now have the absolute screen coords, if there's a parent we
 548     // must subtract its top left corner
 549     POINT point;
 550     point.x = rect.left;
 551     point.y = rect.top;
 552     if (parent)
 553     {
 554         ::ScreenToClient((HWND) parent->GetHWND(), &point);
 555     }
 556
 557     // We may be faking the client origin. So a window that's really at (0, 30)
 558     // may appear (to wxWin apps) to be at (0, 0).
 559     if (GetParent())
 560     {
 561         wxPoint pt(GetParent()->GetClientAreaOrigin());
 562         point.x -= pt.x;
 563         point.y -= pt.y;
 564     }
 565
 566     *x = point.x;
 567     *y = point.y;
 568 }
 569
 570 void wxRadioBox::SetFocus()
 571 {
 572     if (m_noItems > 0)
 573     {
 574         if (m_selectedButton == -1)
 575             ::SetFocus((HWND) m_radioButtons[0]);
 576         else
 577             ::SetFocus((HWND) m_radioButtons[m_selectedButton]);
 578     }
 579
 580 }
 581
 582 bool wxRadioBox::Show(bool show)
 583 {
 584     if ( !wxControl::Show(show) )
 585         return FALSE;
 586
 587     int nCmdShow = show ? SW_SHOW : SW_HIDE;
 588     for ( int i = 0; i < m_noItems; i++ )
 589     {
 590         ::ShowWindow((HWND)m_radioButtons[i], nCmdShow);
 591     }
 592
 593     return TRUE;
 594 }
 595
 596 // Enable a specific button
 597 void wxRadioBox::Enable(int item, bool enable)
 598 {
 599     wxCHECK_RET( item >= 0 && item < m_noItems,
 600                  wxT("invalid item in wxRadioBox::Enable()") );
 601
 602     ::EnableWindow((HWND) m_radioButtons[item], enable);
 603 }
 604
 605 // Enable all controls
 606 bool wxRadioBox::Enable(bool enable)
 607 {
 608     if ( !wxControl::Enable(enable) )
 609         return FALSE;
 610
 611     for (int i = 0; i < m_noItems; i++)
 612         ::EnableWindow((HWND) m_radioButtons[i], enable);
 613
 614     return TRUE;
 615 }
 616
 617 // Show a specific button
 618 void wxRadioBox::Show(int item, bool show)
 619 {
 620     wxCHECK_RET( item >= 0 && item < m_noItems,
 621                  wxT("invalid item in wxRadioBox::Show()") );
 622
 623     ::ShowWindow((HWND)m_radioButtons[item], show ? SW_SHOW : SW_HIDE);
 624 }
 625
 626 // For single selection items only
 627 wxString wxRadioBox::GetStringSelection() const
 628 {
 629     wxString result;
 630     int sel = GetSelection();
 631     if (sel > -1)
 632         result = GetString(sel);
 633
 634     return result;
 635 }
 636
 637 bool wxRadioBox::SetStringSelection(const wxString& s)
 638 {
 639     int sel = FindString (s);
 640     if (sel > -1)
 641     {
 642         SetSelection (sel);
 643         return TRUE;
 644     }
 645     else
 646         return FALSE;
 647 }
 648
 649 bool wxRadioBox::ContainsHWND(WXHWND hWnd) const
 650 {
 651     int i;
 652     for (i = 0; i < Number(); i++)
 653     {
 654         if (GetRadioButtons()[i] == hWnd)
 655             return TRUE;
 656     }
 657
 658     return FALSE;
 659 }
 660
 661 void wxRadioBox::Command (wxCommandEvent & event)
 662 {
 663     SetSelection (event.m_commandInt);
 664     ProcessCommand (event);
 665 }
 666
 667 void wxRadioBox::SubclassRadioButton(WXHWND hWndBtn)
 668 {
 669 #ifdef __WIN32__
 670     HWND hwndBtn = (HWND)hWndBtn;
 671
 672     if ( !s_wndprocRadioBtn )
 673         s_wndprocRadioBtn = (WXFARPROC)::GetWindowLong(hwndBtn, GWL_WNDPROC);
 674
 675     // No GWL_USERDATA in Win16, so omit this subclassing.
 676     ::SetWindowLong(hwndBtn, GWL_WNDPROC, (long)wxRadioBtnWndProc);
 677     ::SetWindowLong(hwndBtn, GWL_USERDATA, (long)this);
 678 #endif // __WIN32__
 679 }
 680
 681 void wxRadioBox::SendNotificationEvent()
 682 {
 683     wxCommandEvent event(wxEVT_COMMAND_RADIOBOX_SELECTED, m_windowId);
 684     event.SetInt( m_selectedButton );
 685     event.SetString( GetString(m_selectedButton) );
 686     event.SetEventObject( this );
 687     ProcessCommand(event);
 688 }
 689
 690 long wxRadioBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 691 {
 692     // This is required for the radiobox to be sensitive to mouse input,
 693     // e.g. for Dialog Editor.
 694     if (nMsg == WM_NCHITTEST)
 695     {
 696         int xPos = LOWORD(lParam);  // horizontal position of cursor
 697         int yPos = HIWORD(lParam);  // vertical position of cursor
 698
 699         ScreenToClient(&xPos, &yPos);
 700
 701         // Make sure you can drag by the top of the groupbox, but let
 702         // other (enclosed) controls get mouse events also
 703         if (yPos < 10)
 704             return (long)HTCLIENT;
 705     }
 706
 707     return wxControl::MSWWindowProc(nMsg, wParam, lParam);
 708 }
 709
 710 // ---------------------------------------------------------------------------
 711 // window proc for radio buttons
 712 // ---------------------------------------------------------------------------
 713
 714 #ifdef __WIN32__
 715
 716 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hwnd,
 717                                            UINT msg,
 718                                            WPARAM wParam,
 719                                            LPARAM lParam)
 720 {
 721     bool processed = FALSE;
 722     if ( msg == WM_KEYDOWN
 723 #if wxUSE_TOOLTIPS
 724          || msg == WM_NOTIFY
 725 #endif // wxUSE_TOOLTIPS
 726        )
 727     {
 728         wxRadioBox *radiobox = (wxRadioBox *)::GetWindowLong(hwnd, GWL_USERDATA);
 729
 730         wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
 731
 732 #if wxUSE_TOOLTIPS
 733         if ( msg == WM_NOTIFY )
 734         {
 735             NMHDR* hdr = (NMHDR *)lParam;
 736             if ( (int)hdr->code == TTN_NEEDTEXT )
 737             {
 738                 wxToolTip *tt = radiobox->GetToolTip();
 739                 if ( tt )
 740                 {
 741                     TOOLTIPTEXT *ttt = (TOOLTIPTEXT *)lParam;
 742                     ttt->lpszText = (wxChar *)tt->GetTip().c_str();
 743
 744                     processed = TRUE;
 745                 }
 746             }
 747         }
 748         else // msg == WM_KEYDOWN
 749 #endif // wxUSE_TOOLTIPS
 750         {
 751             processed = TRUE;
 752
 753             int sel = radiobox->GetSelection();
 754
 755             switch ( wParam )
 756             {
 757                 case VK_UP:
 758                     sel--;
 759                     break;
 760
 761                 case VK_LEFT:
 762                     sel -= radiobox->GetNumVer();
 763                     break;
 764
 765                 case VK_DOWN:
 766                     sel++;
 767                     break;
 768
 769                 case VK_RIGHT:
 770                     sel += radiobox->GetNumVer();
 771                     break;
 772
 773                 case VK_TAB:
 774                     {
 775                         wxNavigationKeyEvent event;
 776                         event.SetDirection(!(::GetKeyState(VK_SHIFT) & 0x100));
 777                         event.SetWindowChange(FALSE);
 778                         event.SetEventObject(radiobox);
 779
 780                         if ( radiobox->GetEventHandler()->ProcessEvent(event) )
 781                             return 0;
 782                     }
 783                     // fall through
 784
 785                 default:
 786                     processed = FALSE;
 787             }
 788
 789             if ( processed )
 790             {
 791                 if ( sel >= 0 && sel < radiobox->Number() )
 792                 {
 793                     radiobox->SetSelection(sel);
 794
 795                     // emulate the button click
 796                     radiobox->SendNotificationEvent();
 797                 }
 798             }
 799         }
 800     }
 801
 802     if ( processed )
 803         return 0;
 804
 805     return ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd, msg, wParam, lParam);
 806 }
 807
 808 #endif // __WIN32__
 809