src/msw/radiobox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/radiobox.cpp
   3 // Purpose:     wxRadioBox implementation
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ===========================================================================
  13 // declarations
  14 // ===========================================================================
  15
  16 // ---------------------------------------------------------------------------
  17 // headers
  18 // ---------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  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 #if wxUSE_RADIOBOX
  32
  33 #ifndef WX_PRECOMP
  34     #include "wx/bitmap.h"
  35     #include "wx/brush.h"
  36     #include "wx/radiobox.h"
  37     #include "wx/settings.h"
  38     #include "wx/log.h"
  39 #endif
  40
  41 #include "wx/msw/subwin.h"
  42
  43 // This is switched off because in some situations, the radiobox
  44 // buttons simply don't appear when deferred sizing is on.
  45 // Instead, refreshing on WM_MOVE seems to at least cure the droppings.
  46 #define USE_DEFERRED_SIZING 0
  47
  48 #if wxUSE_TOOLTIPS
  49     #if !defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__)
  50         #include <commctrl.h>
  51     #endif
  52     #include "wx/tooltip.h"
  53 #endif // wxUSE_TOOLTIPS
  54
  55 // TODO: wxCONSTRUCTOR
  56 #if 0 // wxUSE_EXTENDED_RTTI
  57 WX_DEFINE_FLAGS( wxRadioBoxStyle )
  58
  59 wxBEGIN_FLAGS( wxRadioBoxStyle )
  60     // new style border flags, we put them first to
  61     // use them for streaming out
  62     wxFLAGS_MEMBER(wxBORDER_SIMPLE)
  63     wxFLAGS_MEMBER(wxBORDER_SUNKEN)
  64     wxFLAGS_MEMBER(wxBORDER_DOUBLE)
  65     wxFLAGS_MEMBER(wxBORDER_RAISED)
  66     wxFLAGS_MEMBER(wxBORDER_STATIC)
  67     wxFLAGS_MEMBER(wxBORDER_NONE)
  68
  69     // old style border flags
  70     wxFLAGS_MEMBER(wxSIMPLE_BORDER)
  71     wxFLAGS_MEMBER(wxSUNKEN_BORDER)
  72     wxFLAGS_MEMBER(wxDOUBLE_BORDER)
  73     wxFLAGS_MEMBER(wxRAISED_BORDER)
  74     wxFLAGS_MEMBER(wxSTATIC_BORDER)
  75     wxFLAGS_MEMBER(wxBORDER)
  76
  77     // standard window styles
  78     wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
  79     wxFLAGS_MEMBER(wxCLIP_CHILDREN)
  80     wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
  81     wxFLAGS_MEMBER(wxWANTS_CHARS)
  82     wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
  83     wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
  84     wxFLAGS_MEMBER(wxVSCROLL)
  85     wxFLAGS_MEMBER(wxHSCROLL)
  86
  87     wxFLAGS_MEMBER(wxRA_SPECIFY_COLS)
  88     wxFLAGS_MEMBER(wxRA_HORIZONTAL)
  89     wxFLAGS_MEMBER(wxRA_SPECIFY_ROWS)
  90     wxFLAGS_MEMBER(wxRA_VERTICAL)
  91
  92 wxEND_FLAGS( wxRadioBoxStyle )
  93
  94 IMPLEMENT_DYNAMIC_CLASS_XTI(wxRadioBox, wxControl,"wx/radiobox.h")
  95
  96 wxBEGIN_PROPERTIES_TABLE(wxRadioBox)
  97     wxEVENT_PROPERTY( Select , wxEVT_COMMAND_RADIOBOX_SELECTED , wxCommandEvent )
  98     wxPROPERTY_FLAGS( WindowStyle , wxRadioBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
  99 wxEND_PROPERTIES_TABLE()
 100
 101 #else
 102 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox, wxControl)
 103 #endif
 104
 105 /*
 106     selection
 107     content
 108         label
 109         dimension
 110         item
 111 */
 112
 113 // ---------------------------------------------------------------------------
 114 // private functions
 115 // ---------------------------------------------------------------------------
 116
 117 // wnd proc for radio buttons
 118 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hWnd,
 119                                            UINT message,
 120                                            WPARAM wParam,
 121                                            LPARAM lParam);
 122
 123 // ---------------------------------------------------------------------------
 124 // global vars
 125 // ---------------------------------------------------------------------------
 126
 127 // the pointer to standard radio button wnd proc
 128 static WXFARPROC s_wndprocRadioBtn = (WXFARPROC)NULL;
 129
 130 // ===========================================================================
 131 // implementation
 132 // ===========================================================================
 133
 134 // ---------------------------------------------------------------------------
 135 // wxRadioBox creation
 136 // ---------------------------------------------------------------------------
 137
 138 // Radio box item
 139 void wxRadioBox::Init()
 140 {
 141     m_selectedButton = wxNOT_FOUND;
 142     m_radioButtons = NULL;
 143     m_majorDim = 0;
 144     m_radioWidth = NULL;
 145     m_radioHeight = NULL;
 146 }
 147
 148 bool wxRadioBox::Create(wxWindow *parent,
 149                         wxWindowID id,
 150                         const wxString& title,
 151                         const wxPoint& pos,
 152                         const wxSize& size,
 153                         int n,
 154                         const wxString choices[],
 155                         int majorDim,
 156                         long style,
 157                         const wxValidator& val,
 158                         const wxString& name)
 159 {
 160     // initialize members
 161     m_majorDim = majorDim == 0 ? n : majorDim;
 162
 163     // common initialization
 164     if ( !wxStaticBox::Create(parent, id, title, pos, size, style, name) )
 165         return false;
 166
 167 #if wxUSE_VALIDATORS
 168     SetValidator(val);
 169 #else
 170     wxUnusedVar(val);
 171 #endif // wxUSE_VALIDATORS/!wxUSE_VALIDATORS
 172
 173     m_radioButtons = new wxSubwindows(n);
 174     m_radioWidth = new int[n];
 175     m_radioHeight = new int[n];
 176
 177     for ( int i = 0; i < n; i++ )
 178     {
 179         m_radioWidth[i] =
 180         m_radioHeight[i] = wxDefaultCoord;
 181         long styleBtn = BS_AUTORADIOBUTTON | WS_TABSTOP | WS_CHILD | WS_VISIBLE;
 182         if ( i == 0 )
 183             styleBtn |= WS_GROUP;
 184
 185         long newId = NewControlId();
 186
 187         HWND hwndBtn = ::CreateWindow(_T("BUTTON"),
 188                                       choices[i],
 189                                       styleBtn,
 190                                       0, 0, 0, 0,   // will be set in SetSize()
 191                                       GetHwnd(),
 192                                       (HMENU)newId,
 193                                       wxGetInstance(),
 194                                       NULL);
 195
 196         if ( !hwndBtn )
 197         {
 198             wxLogLastError(wxT("CreateWindow(radio btn)"));
 199
 200             return false;
 201         }
 202
 203         (*m_radioButtons)[i] = hwndBtn;
 204
 205         SubclassRadioButton((WXHWND)hwndBtn);
 206
 207         m_subControls.Add(newId);
 208     }
 209
 210     // Create a dummy radio control to end the group.
 211     (void)::CreateWindow(_T("BUTTON"),
 212                          wxEmptyString,
 213                          WS_GROUP | BS_AUTORADIOBUTTON | WS_CHILD,
 214                          0, 0, 0, 0, GetHwnd(),
 215                          (HMENU)NewControlId(), wxGetInstance(), NULL);
 216
 217     m_radioButtons->SetFont(GetFont());
 218
 219 #ifdef __WXWINCE__
 220     // Set the z-order correctly
 221     SetWindowPos(GetHwnd(), HWND_BOTTOM, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE);
 222 #endif
 223
 224     SetSelection(0);
 225     SetSize(pos.x, pos.y, size.x, size.y);
 226
 227     // Now that we have items determine what is the best size and set it.
 228     SetBestSize(size);
 229
 230     return true;
 231 }
 232
 233 bool wxRadioBox::Create(wxWindow *parent,
 234                         wxWindowID id,
 235                         const wxString& title,
 236                         const wxPoint& pos,
 237                         const wxSize& size,
 238                         const wxArrayString& choices,
 239                         int majorDim,
 240                         long style,
 241                         const wxValidator& val,
 242                         const wxString& name)
 243 {
 244     wxCArrayString chs(choices);
 245     return Create(parent, id, title, pos, size, chs.GetCount(),
 246                   chs.GetStrings(), majorDim, style, val, name);
 247 }
 248
 249 wxRadioBox::~wxRadioBox()
 250 {
 251     m_isBeingDeleted = true;
 252
 253     delete m_radioButtons;
 254     delete[] m_radioWidth;
 255     delete[] m_radioHeight;
 256 }
 257
 258 // NB: if this code is changed, wxGetWindowForHWND() which relies on having the
 259 //     radiobox pointer in GWL_USERDATA for radio buttons must be updated too!
 260 void wxRadioBox::SubclassRadioButton(WXHWND hWndBtn)
 261 {
 262     HWND hwndBtn = (HWND)hWndBtn;
 263
 264     if ( !s_wndprocRadioBtn )
 265         s_wndprocRadioBtn = (WXFARPROC)wxGetWindowProc(hwndBtn);
 266
 267     wxSetWindowProc(hwndBtn, wxRadioBtnWndProc);
 268     wxSetWindowUserData(hwndBtn, this);
 269 }
 270
 271 // ----------------------------------------------------------------------------
 272 // events generation
 273 // ----------------------------------------------------------------------------
 274
 275 bool wxRadioBox::MSWCommand(WXUINT cmd, WXWORD id)
 276 {
 277     if ( cmd == BN_CLICKED )
 278     {
 279         if (id == GetId())
 280             return true;
 281
 282         int selectedButton = wxNOT_FOUND;
 283
 284         int count = GetCount();
 285         for ( int i = 0; i < count; i++ )
 286         {
 287             if ( id == wxGetWindowId((*m_radioButtons)[i]) )
 288             {
 289                 selectedButton = i;
 290
 291                 break;
 292             }
 293         }
 294
 295         if ( selectedButton == wxNOT_FOUND )
 296         {
 297             // just ignore it - due to a hack with WM_NCHITTEST handling in our
 298             // wnd proc, we can receive dummy click messages when we click near
 299             // the radiobox edge (this is ugly but Julian wouldn't let me get
 300             // rid of this...)
 301             return false;
 302         }
 303
 304         if ( selectedButton != m_selectedButton )
 305         {
 306             m_selectedButton = selectedButton;
 307
 308             SendNotificationEvent();
 309         }
 310         //else: don't generate events when the selection doesn't change
 311
 312         return true;
 313     }
 314     else
 315         return false;
 316 }
 317
 318 void wxRadioBox::Command(wxCommandEvent & event)
 319 {
 320     SetSelection (event.GetInt());
 321     SetFocus();
 322     ProcessCommand(event);
 323 }
 324
 325 void wxRadioBox::SendNotificationEvent()
 326 {
 327     wxCommandEvent event(wxEVT_COMMAND_RADIOBOX_SELECTED, m_windowId);
 328     event.SetInt( m_selectedButton );
 329     event.SetString( GetString(m_selectedButton) );
 330     event.SetEventObject( this );
 331     ProcessCommand(event);
 332 }
 333
 334 // ----------------------------------------------------------------------------
 335 // simple accessors
 336 // ----------------------------------------------------------------------------
 337
 338 int wxRadioBox::GetCount() const
 339 {
 340     return m_radioButtons->GetCount();
 341 }
 342
 343 // returns the number of rows
 344 int wxRadioBox::GetNumVer() const
 345 {
 346     if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 347     {
 348         return m_majorDim;
 349     }
 350     else
 351     {
 352         return (GetCount() + m_majorDim - 1)/m_majorDim;
 353     }
 354 }
 355
 356 // returns the number of columns
 357 int wxRadioBox::GetNumHor() const
 358 {
 359     if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 360     {
 361         return (GetCount() + m_majorDim - 1)/m_majorDim;
 362     }
 363     else
 364     {
 365         return m_majorDim;
 366     }
 367 }
 368
 369 void wxRadioBox::SetString(int item, const wxString& label)
 370 {
 371     wxCHECK_RET( IsValid(item), wxT("invalid radiobox index") );
 372
 373     m_radioWidth[item] =
 374     m_radioHeight[item] = wxDefaultCoord;
 375
 376     ::SetWindowText((*m_radioButtons)[item], label.c_str());
 377
 378     InvalidateBestSize();
 379 }
 380
 381 void wxRadioBox::SetSelection(int N)
 382 {
 383     wxCHECK_RET( IsValid(N), wxT("invalid radiobox index") );
 384
 385     // unselect the old button
 386     if ( m_selectedButton != wxNOT_FOUND )
 387         ::SendMessage((*m_radioButtons)[m_selectedButton], BM_SETCHECK, 0, 0L);
 388
 389     // and select the new one
 390     ::SendMessage((*m_radioButtons)[N], BM_SETCHECK, 1, 0L);
 391
 392     m_selectedButton = N;
 393 }
 394
 395 // Find string for position
 396 wxString wxRadioBox::GetString(int item) const
 397 {
 398     wxCHECK_MSG( IsValid(item), wxEmptyString,
 399                  wxT("invalid radiobox index") );
 400
 401     return wxGetWindowText((*m_radioButtons)[item]);
 402 }
 403
 404 void wxRadioBox::SetFocus()
 405 {
 406     if ( GetCount() > 0 )
 407     {
 408         ::SetFocus((*m_radioButtons)[m_selectedButton == wxNOT_FOUND
 409                                         ? 0
 410                                         : m_selectedButton]);
 411     }
 412 }
 413
 414 // Enable a specific button
 415 bool wxRadioBox::Enable(int item, bool enable)
 416 {
 417     wxCHECK_MSG( IsValid(item), false,
 418                  wxT("invalid item in wxRadioBox::Enable()") );
 419
 420     BOOL ret = ::EnableWindow((*m_radioButtons)[item], enable);
 421
 422     return (ret == 0) == enable;
 423 }
 424
 425 // Show a specific button
 426 bool wxRadioBox::Show(int item, bool show)
 427 {
 428     wxCHECK_MSG( IsValid(item), false,
 429                  wxT("invalid item in wxRadioBox::Show()") );
 430
 431     BOOL ret = ::ShowWindow((*m_radioButtons)[item], show ? SW_SHOW : SW_HIDE);
 432
 433     bool changed = (ret != 0) == show;
 434     if( changed )
 435         InvalidateBestSize();
 436     return changed;
 437 }
 438
 439 WX_FORWARD_STD_METHODS_TO_SUBWINDOWS(wxRadioBox, wxStaticBox, m_radioButtons)
 440
 441 // ----------------------------------------------------------------------------
 442 // size calculations
 443 // ----------------------------------------------------------------------------
 444
 445 wxSize wxRadioBox::GetMaxButtonSize() const
 446 {
 447     // calculate the max button size
 448     int widthMax = 0,
 449         heightMax = 0;
 450     const int count = GetCount();
 451     for ( int i = 0 ; i < count; i++ )
 452     {
 453         int width, height;
 454         if ( m_radioWidth[i] < 0 )
 455         {
 456             GetTextExtent(wxGetWindowText((*m_radioButtons)[i]), &width, &height);
 457
 458             // adjust the size to take into account the radio box itself
 459             // FIXME this is totally bogus!
 460             width += RADIO_SIZE;
 461             height *= 3;
 462             height /= 2;
 463         }
 464         else
 465         {
 466             width = m_radioWidth[i];
 467             height = m_radioHeight[i];
 468         }
 469
 470         if ( widthMax < width )
 471             widthMax = width;
 472         if ( heightMax < height )
 473             heightMax = height;
 474     }
 475
 476     return wxSize(widthMax, heightMax);
 477 }
 478
 479 wxSize wxRadioBox::GetTotalButtonSize(const wxSize& sizeBtn) const
 480 {
 481     // the radiobox should be big enough for its buttons
 482     int cx1, cy1;
 483     wxGetCharSize(m_hWnd, &cx1, &cy1, GetFont());
 484
 485     int extraHeight = cy1;
 486
 487     int height = GetNumVer() * sizeBtn.y + cy1/2 + extraHeight;
 488     int width  = GetNumHor() * (sizeBtn.x + cx1) + cx1;
 489
 490     // Add extra space under the label, if it exists.
 491     if (!wxControl::GetLabel().empty())
 492         height += cy1/2;
 493
 494     // and also wide enough for its label
 495     int widthLabel;
 496     GetTextExtent(GetTitle(), &widthLabel, NULL);
 497     widthLabel += RADIO_SIZE; // FIXME this is bogus too
 498     if ( widthLabel > width )
 499         width = widthLabel;
 500
 501     return wxSize(width, height);
 502 }
 503
 504 wxSize wxRadioBox::DoGetBestSize() const
 505 {
 506     wxSize best = GetTotalButtonSize(GetMaxButtonSize());
 507     CacheBestSize(best);
 508     return best;
 509 }
 510
 511 // Restored old code.
 512 void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 513 {
 514     int currentX, currentY;
 515     GetPosition(&currentX, &currentY);
 516     int widthOld, heightOld;
 517     GetSize(&widthOld, &heightOld);
 518
 519     int xx = x;
 520     int yy = y;
 521
 522     if (x == wxDefaultCoord && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 523         xx = currentX;
 524     if (y == wxDefaultCoord && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 525         yy = currentY;
 526
 527     int y_offset = 0;
 528     int x_offset = 0;
 529
 530     int cx1, cy1;
 531     wxGetCharSize(m_hWnd, &cx1, &cy1, GetFont());
 532
 533     // Attempt to have a look coherent with other platforms: We compute the
 534     // biggest toggle dim, then we align all items according this value.
 535     wxSize maxSize = GetMaxButtonSize();
 536     int maxWidth = maxSize.x,
 537         maxHeight = maxSize.y;
 538
 539     wxSize totSize = GetTotalButtonSize(maxSize);
 540     int totWidth = totSize.x,
 541         totHeight = totSize.y;
 542
 543     // only change our width/height if asked for
 544     if ( width == wxDefaultCoord )
 545     {
 546         if ( sizeFlags & wxSIZE_AUTO_WIDTH )
 547             width = totWidth;
 548         else
 549             width = widthOld;
 550     }
 551
 552     if ( height == wxDefaultCoord )
 553     {
 554         if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
 555             height = totHeight;
 556         else
 557             height = heightOld;
 558     }
 559
 560     // if our parent had prepared a defer window handle for us, use it (unless
 561     // we are a top level window)
 562
 563 #if USE_DEFERRED_SIZING
 564     wxWindowMSW *parent = GetParent();
 565     HDWP hdwp = parent && !IsTopLevel() ? (HDWP)parent->m_hDWP : NULL;
 566 #else
 567     HDWP hdwp = 0;
 568 #endif
 569
 570     wxMoveWindowDeferred(hdwp, this, GetHwnd(), xx, yy, width, height);
 571
 572     // Now position all the buttons: the current button will be put at
 573     // wxPoint(x_offset, y_offset) and the new row/column will start at
 574     // startX/startY. The size of all buttons will be the same wxSize(maxWidth,
 575     // maxHeight) except for the buttons in the last column which should extend
 576     // to the right border of radiobox and thus can be wider than this.
 577
 578     // Also, remember that wxRA_SPECIFY_COLS means that we arrange buttons in
 579     // left to right order and m_majorDim is the number of columns while
 580     // wxRA_SPECIFY_ROWS means that the buttons are arranged top to bottom and
 581     // m_majorDim is the number of rows.
 582
 583     x_offset += cx1;
 584     y_offset += cy1;
 585
 586     // Add extra space under the label, if it exists.
 587     if (!wxControl::GetLabel().empty())
 588         y_offset += cy1/2;
 589
 590     int startX = x_offset;
 591     int startY = y_offset;
 592
 593     const int count = GetCount();
 594     for ( int i = 0; i < count; i++ )
 595     {
 596         // the last button in the row may be wider than the other ones as the
 597         // radiobox may be wider than the sum of the button widths (as it
 598         // happens, for example, when the radiobox label is very long)
 599         bool isLastInTheRow;
 600         if ( m_windowStyle & wxRA_SPECIFY_COLS )
 601         {
 602             // item is the last in its row if it is a multiple of the number of
 603             // columns or if it is just the last item
 604             int n = i + 1;
 605             isLastInTheRow = ((n % m_majorDim) == 0) || (n == count);
 606         }
 607         else // wxRA_SPECIFY_ROWS
 608         {
 609             // item is the last in the row if it is in the last columns
 610             isLastInTheRow = i >= (count/m_majorDim)*m_majorDim;
 611         }
 612
 613         // is this the start of new row/column?
 614         if ( i && (i % m_majorDim == 0) )
 615         {
 616             if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 617             {
 618                 // start of new column
 619                 y_offset = startY;
 620                 x_offset += maxWidth + cx1;
 621             }
 622             else // start of new row
 623             {
 624                 x_offset = startX;
 625                 y_offset += maxHeight;
 626                 if (m_radioWidth[0]>0)
 627                     y_offset += cy1/2;
 628             }
 629         }
 630
 631         int widthBtn;
 632         if ( isLastInTheRow )
 633         {
 634             // make the button go to the end of radio box
 635             widthBtn = startX + width - x_offset - 2*cx1;
 636             if ( widthBtn < maxWidth )
 637                 widthBtn = maxWidth;
 638         }
 639         else
 640         {
 641             // normal button, always of the same size
 642             widthBtn = maxWidth;
 643         }
 644
 645         // make all buttons of the same, maximal size - like this they cover
 646         // the radiobox entirely and the radiobox tooltips are always shown
 647         // (otherwise they are not when the mouse pointer is in the radiobox
 648         // part not belonging to any radiobutton)
 649         ::MoveWindow((*m_radioButtons)[i],
 650                      x_offset, y_offset, widthBtn, maxHeight,
 651                      TRUE);
 652
 653         // where do we put the next button?
 654         if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 655         {
 656             // below this one
 657             y_offset += maxHeight;
 658             if (m_radioWidth[0]>0)
 659                 y_offset += cy1/2;
 660         }
 661         else
 662         {
 663             // to the right of this one
 664             x_offset += widthBtn + cx1;
 665         }
 666     }
 667
 668 #if USE_DEFERRED_SIZING
 669     if (parent)
 670     {
 671         // hdwp must be updated as it may have been changed
 672         parent->m_hDWP = (WXHANDLE)hdwp;
 673     }
 674 #endif
 675 }
 676
 677 // ----------------------------------------------------------------------------
 678 // radio box drawing
 679 // ----------------------------------------------------------------------------
 680
 681 #ifndef __WXWINCE__
 682
 683 WXHRGN wxRadioBox::MSWGetRegionWithoutChildren()
 684 {
 685     RECT rc;
 686     ::GetWindowRect(GetHwnd(), &rc);
 687     HRGN hrgn = ::CreateRectRgn(rc.left, rc.top, rc.right + 1, rc.bottom + 1);
 688
 689     const size_t count = GetCount();
 690     for ( size_t i = 0; i < count; ++i )
 691     {
 692         ::GetWindowRect((*m_radioButtons)[i], &rc);
 693         AutoHRGN hrgnchild(::CreateRectRgnIndirect(&rc));
 694         ::CombineRgn(hrgn, hrgn, hrgnchild, RGN_DIFF);
 695     }
 696
 697     return (WXHRGN)hrgn;
 698 }
 699
 700 WXLRESULT
 701 wxRadioBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 702 {
 703     // FIXME: Without this, the radiobox corrupts other controls as it moves
 704     // in a dynamic layout. Refreshing causes flicker, but it's better than
 705     // leaving droppings. Note that for some reason, wxStaticBox doesn't need
 706     // this (perhaps because it has no real children?)
 707     if ( nMsg == WM_MOVE )
 708     {
 709         WXLRESULT res = wxControl::MSWWindowProc(nMsg, wParam, lParam);
 710         wxRect rect = GetRect();
 711         GetParent()->Refresh(true, & rect);
 712         return res;
 713     }
 714
 715     return wxStaticBox::MSWWindowProc(nMsg, wParam, lParam);
 716 }
 717
 718 #endif // __WXWINCE__
 719
 720 // ---------------------------------------------------------------------------
 721 // window proc for radio buttons
 722 // ---------------------------------------------------------------------------
 723
 724 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hwnd,
 725                                            UINT message,
 726                                            WPARAM wParam,
 727                                            LPARAM lParam)
 728 {
 729     switch ( message )
 730     {
 731         case WM_GETDLGCODE:
 732             // we must tell IsDialogMessage()/our kbd processing code that we
 733             // want to process arrows ourselves because neither of them is
 734             // smart enough to handle arrows properly for us
 735             {
 736                 long lDlgCode = ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd,
 737                                                  message, wParam, lParam);
 738
 739                 return lDlgCode | DLGC_WANTARROWS;
 740             }
 741
 742 #if wxUSE_TOOLTIPS
 743         case WM_NOTIFY:
 744             {
 745                 NMHDR* hdr = (NMHDR *)lParam;
 746                 if ( hdr->code == TTN_NEEDTEXT )
 747                 {
 748                     wxRadioBox *
 749                         radiobox = (wxRadioBox *)wxGetWindowUserData(hwnd);
 750
 751                     wxCHECK_MSG( radiobox, 0,
 752                                  wxT("radio button without radio box?") );
 753
 754                     wxToolTip *tooltip = radiobox->GetToolTip();
 755                     if ( tooltip )
 756                     {
 757                         TOOLTIPTEXT *ttt = (TOOLTIPTEXT *)lParam;
 758                         ttt->lpszText = (wxChar *)tooltip->GetTip().c_str();
 759                     }
 760
 761                     // processed
 762                     return 0;
 763                 }
 764             }
 765             break;
 766 #endif // wxUSE_TOOLTIPS
 767
 768         case WM_KEYDOWN:
 769             {
 770                 wxRadioBox *radiobox = (wxRadioBox *)wxGetWindowUserData(hwnd);
 771
 772                 wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
 773
 774                 bool processed = true;
 775
 776                 wxDirection dir;
 777                 switch ( wParam )
 778                 {
 779                     case VK_UP:
 780                         dir = wxUP;
 781                         break;
 782
 783                     case VK_LEFT:
 784                         dir = wxLEFT;
 785                         break;
 786
 787                     case VK_DOWN:
 788                         dir = wxDOWN;
 789                         break;
 790
 791                     case VK_RIGHT:
 792                         dir = wxRIGHT;
 793                         break;
 794
 795                     default:
 796                         processed = false;
 797
 798                         // just to suppress the compiler warning
 799                         dir = wxALL;
 800                 }
 801
 802                 if ( processed )
 803                 {
 804                     int selOld = radiobox->GetSelection();
 805                     int selNew = radiobox->GetNextItem
 806                                  (
 807                                   selOld,
 808                                   dir,
 809                                   radiobox->GetWindowStyle()
 810                                  );
 811
 812                     if ( selNew != selOld )
 813                     {
 814                         radiobox->SetSelection(selNew);
 815                         radiobox->SetFocus();
 816
 817                         // emulate the button click
 818                         radiobox->SendNotificationEvent();
 819
 820                         return 0;
 821                     }
 822                 }
 823             }
 824             break;
 825
 826         case WM_SETFOCUS:
 827         case WM_KILLFOCUS:
 828             {
 829                 wxRadioBox *radiobox = (wxRadioBox *)wxGetWindowUserData(hwnd);
 830
 831                 wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
 832
 833                 // if we don't do this, no focus events are generated for the
 834                 // radiobox and, besides, we need to notify the parent about
 835                 // the focus change, otherwise the focus handling logic in
 836                 // wxControlContainer doesn't work
 837                 if ( message == WM_SETFOCUS )
 838                     radiobox->HandleSetFocus((WXHWND)wParam);
 839                 else
 840                     radiobox->HandleKillFocus((WXHWND)wParam);
 841             }
 842             break;
 843
 844 #ifndef __WXWINCE__
 845         case WM_HELP:
 846             {
 847                 wxRadioBox *radiobox = (wxRadioBox *)wxGetWindowUserData(hwnd);
 848
 849                 wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
 850
 851                 bool processed = false;
 852
 853                 wxEvtHandler * const handler = radiobox->GetEventHandler();
 854
 855                 HELPINFO* info = (HELPINFO*) lParam;
 856                 if ( info->iContextType == HELPINFO_WINDOW )
 857                 {
 858                     for ( wxWindow* subjectOfHelp = radiobox;
 859                           subjectOfHelp;
 860                           subjectOfHelp = subjectOfHelp->GetParent() )
 861                     {
 862                         wxHelpEvent helpEvent(wxEVT_HELP,
 863                                               subjectOfHelp->GetId(),
 864                                               wxPoint(info->MousePos.x,
 865                                                       info->MousePos.y));
 866                         helpEvent.SetEventObject(radiobox);
 867                         if ( handler->ProcessEvent(helpEvent) )
 868                         {
 869                             processed = true;
 870                             break;
 871                         }
 872                     }
 873                 }
 874                 else if (info->iContextType == HELPINFO_MENUITEM)
 875                 {
 876                     wxHelpEvent helpEvent(wxEVT_HELP, info->iCtrlId);
 877                     helpEvent.SetEventObject(radiobox);
 878                     processed = handler->ProcessEvent(helpEvent);
 879                 }
 880
 881                 if ( processed )
 882                     return 0;
 883             }
 884             break;
 885 #endif // !__WXWINCE__
 886     }
 887
 888     return ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd, message, wParam, lParam);
 889 }
 890
 891 #endif // wxUSE_RADIOBOX
 892