src/msw/radiobox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/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 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_RADIOBOX
  28
  29 #include "wx/radiobox.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/bitmap.h"
  33     #include "wx/brush.h"
  34     #include "wx/settings.h"
  35     #include "wx/log.h"
  36 #endif
  37
  38 #include "wx/msw/subwin.h"
  39
  40 #if wxUSE_TOOLTIPS
  41     #include "wx/tooltip.h"
  42 #endif // wxUSE_TOOLTIPS
  43
  44 // TODO: wxCONSTRUCTOR
  45 #if 0 // wxUSE_EXTENDED_RTTI
  46 WX_DEFINE_FLAGS( wxRadioBoxStyle )
  47
  48 wxBEGIN_FLAGS( wxRadioBoxStyle )
  49     // new style border flags, we put them first to
  50     // use them for streaming out
  51     wxFLAGS_MEMBER(wxBORDER_SIMPLE)
  52     wxFLAGS_MEMBER(wxBORDER_SUNKEN)
  53     wxFLAGS_MEMBER(wxBORDER_DOUBLE)
  54     wxFLAGS_MEMBER(wxBORDER_RAISED)
  55     wxFLAGS_MEMBER(wxBORDER_STATIC)
  56     wxFLAGS_MEMBER(wxBORDER_NONE)
  57
  58     // old style border flags
  59     wxFLAGS_MEMBER(wxSIMPLE_BORDER)
  60     wxFLAGS_MEMBER(wxSUNKEN_BORDER)
  61     wxFLAGS_MEMBER(wxDOUBLE_BORDER)
  62     wxFLAGS_MEMBER(wxRAISED_BORDER)
  63     wxFLAGS_MEMBER(wxSTATIC_BORDER)
  64     wxFLAGS_MEMBER(wxBORDER)
  65
  66     // standard window styles
  67     wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
  68     wxFLAGS_MEMBER(wxCLIP_CHILDREN)
  69     wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
  70     wxFLAGS_MEMBER(wxWANTS_CHARS)
  71     wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
  72     wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
  73     wxFLAGS_MEMBER(wxVSCROLL)
  74     wxFLAGS_MEMBER(wxHSCROLL)
  75
  76     wxFLAGS_MEMBER(wxRA_SPECIFY_COLS)
  77     wxFLAGS_MEMBER(wxRA_HORIZONTAL)
  78     wxFLAGS_MEMBER(wxRA_SPECIFY_ROWS)
  79     wxFLAGS_MEMBER(wxRA_VERTICAL)
  80
  81 wxEND_FLAGS( wxRadioBoxStyle )
  82
  83 IMPLEMENT_DYNAMIC_CLASS_XTI(wxRadioBox, wxControl,"wx/radiobox.h")
  84
  85 wxBEGIN_PROPERTIES_TABLE(wxRadioBox)
  86     wxEVENT_PROPERTY( Select , wxEVT_COMMAND_RADIOBOX_SELECTED , wxCommandEvent )
  87     wxPROPERTY_FLAGS( WindowStyle , wxRadioBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
  88 wxEND_PROPERTIES_TABLE()
  89
  90 #else
  91 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox, wxControl)
  92 #endif
  93
  94 /*
  95     selection
  96     content
  97         label
  98         dimension
  99         item
 100 */
 101
 102 // ---------------------------------------------------------------------------
 103 // private functions
 104 // ---------------------------------------------------------------------------
 105
 106 // wnd proc for radio buttons
 107 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hWnd,
 108                                            UINT message,
 109                                            WPARAM wParam,
 110                                            LPARAM lParam);
 111
 112 // ---------------------------------------------------------------------------
 113 // global vars
 114 // ---------------------------------------------------------------------------
 115
 116 // the pointer to standard radio button wnd proc
 117 static WXFARPROC s_wndprocRadioBtn = (WXFARPROC)NULL;
 118
 119 // ===========================================================================
 120 // implementation
 121 // ===========================================================================
 122
 123 // ---------------------------------------------------------------------------
 124 // wxRadioBox creation
 125 // ---------------------------------------------------------------------------
 126
 127 // Radio box item
 128 void wxRadioBox::Init()
 129 {
 130     m_selectedButton = wxNOT_FOUND;
 131     m_radioButtons = NULL;
 132     m_radioWidth = NULL;
 133     m_radioHeight = NULL;
 134 }
 135
 136 bool wxRadioBox::Create(wxWindow *parent,
 137                         wxWindowID id,
 138                         const wxString& title,
 139                         const wxPoint& pos,
 140                         const wxSize& size,
 141                         int n,
 142                         const wxString choices[],
 143                         int majorDim,
 144                         long style,
 145                         const wxValidator& val,
 146                         const wxString& name)
 147 {
 148     // common initialization
 149     if ( !wxStaticBox::Create(parent, id, title, pos, size, style, name) )
 150         return false;
 151
 152 #if wxUSE_VALIDATORS
 153     SetValidator(val);
 154 #else
 155     wxUnusedVar(val);
 156 #endif // wxUSE_VALIDATORS/!wxUSE_VALIDATORS
 157
 158     m_radioButtons = new wxSubwindows(n);
 159     m_radioWidth = new int[n];
 160     m_radioHeight = new int[n];
 161
 162     for ( int i = 0; i < n; i++ )
 163     {
 164         m_radioWidth[i] =
 165         m_radioHeight[i] = wxDefaultCoord;
 166         long styleBtn = BS_AUTORADIOBUTTON | WS_TABSTOP | WS_CHILD | WS_VISIBLE;
 167         if ( i == 0 )
 168             styleBtn |= WS_GROUP;
 169
 170         long newId = NewControlId();
 171
 172         HWND hwndBtn = ::CreateWindow(_T("BUTTON"),
 173                                       choices[i].wx_str(),
 174                                       styleBtn,
 175                                       0, 0, 0, 0,   // will be set in SetSize()
 176                                       GetHwndOf(parent),
 177                                       (HMENU)newId,
 178                                       wxGetInstance(),
 179                                       NULL);
 180
 181         if ( !hwndBtn )
 182         {
 183             wxLogLastError(wxT("CreateWindow(radio btn)"));
 184
 185             return false;
 186         }
 187
 188         (*m_radioButtons)[i] = hwndBtn;
 189
 190         SubclassRadioButton((WXHWND)hwndBtn);
 191
 192         m_subControls.Add(newId);
 193     }
 194
 195     // Create a dummy radio control to end the group.
 196     (void)::CreateWindow(_T("BUTTON"),
 197                          wxEmptyString,
 198                          WS_GROUP | BS_AUTORADIOBUTTON | WS_CHILD,
 199                          0, 0, 0, 0, GetHwndOf(parent),
 200                          (HMENU)NewControlId(), wxGetInstance(), NULL);
 201
 202     m_radioButtons->SetFont(GetFont());
 203
 204 #ifdef __WXWINCE__
 205     // Set the z-order correctly
 206     SetWindowPos(GetHwnd(), HWND_BOTTOM, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE);
 207 #endif
 208
 209     SetMajorDim(majorDim == 0 ? n : majorDim, style);
 210     SetSelection(0);
 211     SetSize(pos.x, pos.y, size.x, size.y);
 212
 213     // Now that we have items determine what is the best size and set it.
 214     SetInitialSize(size);
 215
 216     return true;
 217 }
 218
 219 bool wxRadioBox::Create(wxWindow *parent,
 220                         wxWindowID id,
 221                         const wxString& title,
 222                         const wxPoint& pos,
 223                         const wxSize& size,
 224                         const wxArrayString& choices,
 225                         int majorDim,
 226                         long style,
 227                         const wxValidator& val,
 228                         const wxString& name)
 229 {
 230     wxCArrayString chs(choices);
 231     return Create(parent, id, title, pos, size, chs.GetCount(),
 232                   chs.GetStrings(), majorDim, style, val, name);
 233 }
 234
 235 wxRadioBox::~wxRadioBox()
 236 {
 237     m_isBeingDeleted = true;
 238
 239     delete m_radioButtons;
 240     delete[] m_radioWidth;
 241     delete[] m_radioHeight;
 242 }
 243
 244 // NB: if this code is changed, wxGetWindowForHWND() which relies on having the
 245 //     radiobox pointer in GWL_USERDATA for radio buttons must be updated too!
 246 void wxRadioBox::SubclassRadioButton(WXHWND hWndBtn)
 247 {
 248     HWND hwndBtn = (HWND)hWndBtn;
 249
 250     if ( !s_wndprocRadioBtn )
 251         s_wndprocRadioBtn = (WXFARPROC)wxGetWindowProc(hwndBtn);
 252
 253     wxSetWindowProc(hwndBtn, wxRadioBtnWndProc);
 254     wxSetWindowUserData(hwndBtn, this);
 255 }
 256
 257 // ----------------------------------------------------------------------------
 258 // events generation
 259 // ----------------------------------------------------------------------------
 260
 261 bool wxRadioBox::MSWCommand(WXUINT cmd, WXWORD id)
 262 {
 263     if ( cmd == BN_CLICKED )
 264     {
 265         if (id == GetId())
 266             return true;
 267
 268         int selectedButton = wxNOT_FOUND;
 269
 270         const unsigned int count = GetCount();
 271         for ( unsigned int i = 0; i < count; i++ )
 272         {
 273             const HWND hwndBtn = (*m_radioButtons)[i];
 274             if ( id == wxGetWindowId(hwndBtn) )
 275             {
 276                 // we can get BN_CLICKED for a button which just became focused
 277                 // but it may not be checked, in which case we shouldn't
 278                 // generate a radiobox selection changed event for it
 279                 if ( ::SendMessage(hwndBtn, BM_GETCHECK, 0, 0) == BST_CHECKED )
 280                     selectedButton = i;
 281
 282                 break;
 283             }
 284         }
 285
 286         if ( selectedButton == wxNOT_FOUND )
 287         {
 288             // just ignore it - due to a hack with WM_NCHITTEST handling in our
 289             // wnd proc, we can receive dummy click messages when we click near
 290             // the radiobox edge (this is ugly but Julian wouldn't let me get
 291             // rid of this...)
 292             return false;
 293         }
 294
 295         if ( selectedButton != m_selectedButton )
 296         {
 297             m_selectedButton = selectedButton;
 298
 299             SendNotificationEvent();
 300         }
 301         //else: don't generate events when the selection doesn't change
 302
 303         return true;
 304     }
 305     else
 306         return false;
 307 }
 308
 309 void wxRadioBox::Command(wxCommandEvent & event)
 310 {
 311     SetSelection (event.GetInt());
 312     SetFocus();
 313     ProcessCommand(event);
 314 }
 315
 316 void wxRadioBox::SendNotificationEvent()
 317 {
 318     wxCommandEvent event(wxEVT_COMMAND_RADIOBOX_SELECTED, m_windowId);
 319     event.SetInt( m_selectedButton );
 320     event.SetString(GetString(m_selectedButton));
 321     event.SetEventObject( this );
 322     ProcessCommand(event);
 323 }
 324
 325 // ----------------------------------------------------------------------------
 326 // simple accessors
 327 // ----------------------------------------------------------------------------
 328
 329 unsigned int wxRadioBox::GetCount() const
 330 {
 331     return m_radioButtons ? m_radioButtons->GetCount() : 0u;
 332 }
 333
 334 void wxRadioBox::SetString(unsigned int item, const wxString& label)
 335 {
 336     wxCHECK_RET( IsValid(item), wxT("invalid radiobox index") );
 337
 338     m_radioWidth[item] =
 339     m_radioHeight[item] = wxDefaultCoord;
 340
 341     ::SetWindowText((*m_radioButtons)[item], label.c_str());
 342
 343     InvalidateBestSize();
 344 }
 345
 346 void wxRadioBox::SetSelection(int N)
 347 {
 348     wxCHECK_RET( IsValid(N), wxT("invalid radiobox index") );
 349
 350     // unselect the old button
 351     if ( m_selectedButton != wxNOT_FOUND )
 352         ::SendMessage((*m_radioButtons)[m_selectedButton], BM_SETCHECK, 0, 0L);
 353
 354     // and select the new one
 355     ::SendMessage((*m_radioButtons)[N], BM_SETCHECK, 1, 0L);
 356
 357     m_selectedButton = N;
 358 }
 359
 360 // Find string for position
 361 wxString wxRadioBox::GetString(unsigned int item) const
 362 {
 363     wxCHECK_MSG( IsValid(item), wxEmptyString,
 364                  wxT("invalid radiobox index") );
 365
 366     return wxGetWindowText((*m_radioButtons)[item]);
 367 }
 368
 369 void wxRadioBox::SetFocus()
 370 {
 371     if ( GetCount() > 0 )
 372     {
 373         ::SetFocus((*m_radioButtons)[m_selectedButton == wxNOT_FOUND
 374                                         ? 0
 375                                         : m_selectedButton]);
 376     }
 377 }
 378
 379 // Enable a specific button
 380 bool wxRadioBox::Enable(unsigned int item, bool enable)
 381 {
 382     wxCHECK_MSG( IsValid(item), false,
 383                  wxT("invalid item in wxRadioBox::Enable()") );
 384
 385     BOOL ret = ::EnableWindow((*m_radioButtons)[item], enable);
 386
 387     return (ret == 0) != enable;
 388 }
 389
 390 bool wxRadioBox::IsItemEnabled(unsigned int item) const
 391 {
 392     wxCHECK_MSG( IsValid(item), false,
 393                  wxT("invalid item in wxRadioBox::IsItemEnabled()") );
 394
 395     return ::IsWindowEnabled((*m_radioButtons)[item]) != 0;
 396 }
 397
 398 // Show a specific button
 399 bool wxRadioBox::Show(unsigned int item, bool show)
 400 {
 401     wxCHECK_MSG( IsValid(item), false,
 402                  wxT("invalid item in wxRadioBox::Show()") );
 403
 404     BOOL ret = ::ShowWindow((*m_radioButtons)[item], show ? SW_SHOW : SW_HIDE);
 405
 406     bool changed = (ret != 0) != show;
 407     if ( changed )
 408     {
 409         InvalidateBestSize();
 410     }
 411
 412     return changed;
 413 }
 414
 415 bool wxRadioBox::IsItemShown(unsigned int item) const
 416 {
 417     wxCHECK_MSG( IsValid(item), false,
 418                  wxT("invalid item in wxRadioBox::IsItemShown()") );
 419
 420     // don't use IsWindowVisible() here because it would return false if the
 421     // radiobox itself is hidden while we want to only return false if this
 422     // button specifically is hidden
 423     return (::GetWindowLong((*m_radioButtons)[item],
 424                             GWL_STYLE) & WS_VISIBLE) != 0;
 425 }
 426
 427 #if wxUSE_TOOLTIPS
 428
 429 bool wxRadioBox::HasToolTips() const
 430 {
 431     return wxStaticBox::HasToolTips() || wxRadioBoxBase::HasItemToolTips();
 432 }
 433
 434 void wxRadioBox::DoSetItemToolTip(unsigned int item, wxToolTip *tooltip)
 435 {
 436     // we have already checked for the item to be valid in wxRadioBoxBase
 437     const HWND hwndRbtn = (*m_radioButtons)[item];
 438     if ( tooltip != NULL )
 439         tooltip->Add(hwndRbtn);
 440     else // unset the tooltip
 441         wxToolTip::Remove(hwndRbtn);
 442 }
 443
 444 #endif // wxUSE_TOOLTIPS
 445
 446 WX_FORWARD_STD_METHODS_TO_SUBWINDOWS(wxRadioBox, wxStaticBox, m_radioButtons)
 447
 448 // ----------------------------------------------------------------------------
 449 // size calculations
 450 // ----------------------------------------------------------------------------
 451
 452 wxSize wxRadioBox::GetMaxButtonSize() const
 453 {
 454     // calculate the max button size
 455     int widthMax = 0,
 456         heightMax = 0;
 457     const unsigned int count = GetCount();
 458     for ( unsigned int i = 0 ; i < count; i++ )
 459     {
 460         int width, height;
 461         if ( m_radioWidth[i] < 0 )
 462         {
 463             GetTextExtent(wxGetWindowText((*m_radioButtons)[i]), &width, &height);
 464
 465             // adjust the size to take into account the radio box itself
 466             // FIXME this is totally bogus!
 467             width += RADIO_SIZE;
 468             height *= 3;
 469             height /= 2;
 470         }
 471         else
 472         {
 473             width = m_radioWidth[i];
 474             height = m_radioHeight[i];
 475         }
 476
 477         if ( widthMax < width )
 478             widthMax = width;
 479         if ( heightMax < height )
 480             heightMax = height;
 481     }
 482
 483     return wxSize(widthMax, heightMax);
 484 }
 485
 486 wxSize wxRadioBox::GetTotalButtonSize(const wxSize& sizeBtn) const
 487 {
 488     // the radiobox should be big enough for its buttons
 489     int cx1, cy1;
 490     wxGetCharSize(m_hWnd, &cx1, &cy1, GetFont());
 491
 492     int extraHeight = cy1;
 493
 494     int height = GetRowCount() * sizeBtn.y + cy1/2 + extraHeight;
 495     int width  = GetColumnCount() * (sizeBtn.x + cx1) + cx1;
 496
 497     // Add extra space under the label, if it exists.
 498     if (!wxControl::GetLabel().empty())
 499         height += cy1/2;
 500
 501     // and also wide enough for its label
 502     int widthLabel;
 503     GetTextExtent(GetLabelText(), &widthLabel, NULL);
 504     widthLabel += RADIO_SIZE; // FIXME this is bogus too
 505     if ( widthLabel > width )
 506         width = widthLabel;
 507
 508     return wxSize(width, height);
 509 }
 510
 511 wxSize wxRadioBox::DoGetBestSize() const
 512 {
 513     if ( !m_radioButtons )
 514     {
 515         // if we're not fully initialized yet, we can't meaningfully compute
 516         // our best size, we'll do it later
 517         return wxSize(1, 1);
 518     }
 519
 520     wxSize best = GetTotalButtonSize(GetMaxButtonSize());
 521     CacheBestSize(best);
 522     return best;
 523 }
 524
 525 // Restored old code.
 526 void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 527 {
 528     int currentX, currentY;
 529     GetPosition(&currentX, &currentY);
 530     int widthOld, heightOld;
 531     GetSize(&widthOld, &heightOld);
 532
 533     int xx = x;
 534     int yy = y;
 535
 536     if (x == wxDefaultCoord && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 537         xx = currentX;
 538     if (y == wxDefaultCoord && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 539         yy = currentY;
 540
 541     int y_offset = yy;
 542     int x_offset = xx;
 543
 544     int cx1, cy1;
 545     wxGetCharSize(m_hWnd, &cx1, &cy1, GetFont());
 546
 547     // Attempt to have a look coherent with other platforms: We compute the
 548     // biggest toggle dim, then we align all items according this value.
 549     wxSize maxSize = GetMaxButtonSize();
 550     int maxWidth = maxSize.x,
 551         maxHeight = maxSize.y;
 552
 553     wxSize totSize = GetTotalButtonSize(maxSize);
 554     int totWidth = totSize.x,
 555         totHeight = totSize.y;
 556
 557     // only change our width/height if asked for
 558     if ( width == wxDefaultCoord )
 559     {
 560         if ( sizeFlags & wxSIZE_AUTO_WIDTH )
 561             width = totWidth;
 562         else
 563             width = widthOld;
 564     }
 565
 566     if ( height == wxDefaultCoord )
 567     {
 568         if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
 569             height = totHeight;
 570         else
 571             height = heightOld;
 572     }
 573
 574     DoMoveWindow(xx, yy, width, height);
 575
 576     // Now position all the buttons: the current button will be put at
 577     // wxPoint(x_offset, y_offset) and the new row/column will start at
 578     // startX/startY. The size of all buttons will be the same wxSize(maxWidth,
 579     // maxHeight) except for the buttons in the last column which should extend
 580     // to the right border of radiobox and thus can be wider than this.
 581
 582     // Also, remember that wxRA_SPECIFY_COLS means that we arrange buttons in
 583     // left to right order and GetMajorDim() is the number of columns while
 584     // wxRA_SPECIFY_ROWS means that the buttons are arranged top to bottom and
 585     // GetMajorDim() is the number of rows.
 586
 587     x_offset += cx1;
 588     y_offset += cy1;
 589
 590     // Add extra space under the label, if it exists.
 591     if (!wxControl::GetLabel().empty())
 592         y_offset += cy1/2;
 593
 594     int startX = x_offset;
 595     int startY = y_offset;
 596
 597     const unsigned int count = GetCount();
 598     for (unsigned int i = 0; i < count; i++)
 599     {
 600         // the last button in the row may be wider than the other ones as the
 601         // radiobox may be wider than the sum of the button widths (as it
 602         // happens, for example, when the radiobox label is very long)
 603         bool isLastInTheRow;
 604         if ( m_windowStyle & wxRA_SPECIFY_COLS )
 605         {
 606             // item is the last in its row if it is a multiple of the number of
 607             // columns or if it is just the last item
 608             unsigned int n = i + 1;
 609             isLastInTheRow = ((n % GetMajorDim()) == 0) || (n == count);
 610         }
 611         else // wxRA_SPECIFY_ROWS
 612         {
 613             // item is the last in the row if it is in the last columns
 614             isLastInTheRow = i >= (count/GetMajorDim())*GetMajorDim();
 615         }
 616
 617         // is this the start of new row/column?
 618         if ( i && (i % GetMajorDim() == 0) )
 619         {
 620             if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 621             {
 622                 // start of new column
 623                 y_offset = startY;
 624                 x_offset += maxWidth + cx1;
 625             }
 626             else // start of new row
 627             {
 628                 x_offset = startX;
 629                 y_offset += maxHeight;
 630                 if (m_radioWidth[0]>0)
 631                     y_offset += cy1/2;
 632             }
 633         }
 634
 635         int widthBtn;
 636         if ( isLastInTheRow )
 637         {
 638             // make the button go to the end of radio box
 639             widthBtn = startX + width - x_offset - 2*cx1;
 640             if ( widthBtn < maxWidth )
 641                 widthBtn = maxWidth;
 642         }
 643         else
 644         {
 645             // normal button, always of the same size
 646             widthBtn = maxWidth;
 647         }
 648
 649         // make all buttons of the same, maximal size - like this they cover
 650         // the radiobox entirely and the radiobox tooltips are always shown
 651         // (otherwise they are not when the mouse pointer is in the radiobox
 652         // part not belonging to any radiobutton)
 653         DoMoveSibling((*m_radioButtons)[i], x_offset, y_offset, widthBtn, maxHeight);
 654
 655         // where do we put the next button?
 656         if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 657         {
 658             // below this one
 659             y_offset += maxHeight;
 660             if (m_radioWidth[0]>0)
 661                 y_offset += cy1/2;
 662         }
 663         else
 664         {
 665             // to the right of this one
 666             x_offset += widthBtn + cx1;
 667         }
 668     }
 669 }
 670
 671 int wxRadioBox::GetItemFromPoint(const wxPoint& pt) const
 672 {
 673     const unsigned int count = GetCount();
 674     for ( unsigned int i = 0; i < count; i++ )
 675     {
 676         RECT rect = wxGetWindowRect((*m_radioButtons)[i]);
 677
 678         if ( rect.left <= pt.x && pt.x < rect.right &&
 679                 rect.top  <= pt.y && pt.y < rect.bottom )
 680         {
 681             return i;
 682         }
 683     }
 684
 685     return wxNOT_FOUND;
 686 }
 687
 688 // ----------------------------------------------------------------------------
 689 // radio box drawing
 690 // ----------------------------------------------------------------------------
 691
 692 #ifndef __WXWINCE__
 693
 694 WXHRGN wxRadioBox::MSWGetRegionWithoutChildren()
 695 {
 696     RECT rc;
 697     ::GetWindowRect(GetHwnd(), &rc);
 698     HRGN hrgn = ::CreateRectRgn(rc.left, rc.top, rc.right + 1, rc.bottom + 1);
 699
 700     const unsigned int count = GetCount();
 701     for ( unsigned int i = 0; i < count; ++i )
 702     {
 703         // don't clip out hidden children
 704         if ( !IsItemShown(i) )
 705             continue;
 706
 707         ::GetWindowRect((*m_radioButtons)[i], &rc);
 708         AutoHRGN hrgnchild(::CreateRectRgnIndirect(&rc));
 709         ::CombineRgn(hrgn, hrgn, hrgnchild, RGN_DIFF);
 710     }
 711
 712     return (WXHRGN)hrgn;
 713 }
 714
 715 #endif // __WXWINCE__
 716
 717 // ---------------------------------------------------------------------------
 718 // window proc for radio buttons
 719 // ---------------------------------------------------------------------------
 720
 721 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hwnd,
 722                                            UINT message,
 723                                            WPARAM wParam,
 724                                            LPARAM lParam)
 725 {
 726     switch ( message )
 727     {
 728         case WM_GETDLGCODE:
 729             // we must tell IsDialogMessage()/our kbd processing code that we
 730             // want to process arrows ourselves because neither of them is
 731             // smart enough to handle arrows properly for us
 732             {
 733                 long lDlgCode = ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd,
 734                                                  message, wParam, lParam);
 735
 736                 return lDlgCode | DLGC_WANTARROWS;
 737             }
 738
 739         case WM_KEYDOWN:
 740             {
 741                 wxRadioBox *radiobox = (wxRadioBox *)wxGetWindowUserData(hwnd);
 742
 743                 wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
 744
 745                 bool processed = true;
 746
 747                 wxDirection dir;
 748                 switch ( wParam )
 749                 {
 750                     case VK_UP:
 751                         dir = wxUP;
 752                         break;
 753
 754                     case VK_LEFT:
 755                         dir = wxLEFT;
 756                         break;
 757
 758                     case VK_DOWN:
 759                         dir = wxDOWN;
 760                         break;
 761
 762                     case VK_RIGHT:
 763                         dir = wxRIGHT;
 764                         break;
 765
 766                     default:
 767                         processed = false;
 768
 769                         // just to suppress the compiler warning
 770                         dir = wxALL;
 771                 }
 772
 773                 if ( processed )
 774                 {
 775                     int selOld = radiobox->GetSelection();
 776                     int selNew = radiobox->GetNextItem
 777                                  (
 778                                   selOld,
 779                                   dir,
 780                                   radiobox->GetWindowStyle()
 781                                  );
 782
 783                     if ( selNew != selOld )
 784                     {
 785                         radiobox->SetSelection(selNew);
 786                         radiobox->SetFocus();
 787
 788                         // emulate the button click
 789                         radiobox->SendNotificationEvent();
 790
 791                         return 0;
 792                     }
 793                 }
 794             }
 795             break;
 796
 797         case WM_SETFOCUS:
 798         case WM_KILLFOCUS:
 799             {
 800                 wxRadioBox *radiobox = (wxRadioBox *)wxGetWindowUserData(hwnd);
 801
 802                 wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
 803
 804                 // if we don't do this, no focus events are generated for the
 805                 // radiobox and, besides, we need to notify the parent about
 806                 // the focus change, otherwise the focus handling logic in
 807                 // wxControlContainer doesn't work
 808                 if ( message == WM_SETFOCUS )
 809                     radiobox->HandleSetFocus((WXHWND)wParam);
 810                 else
 811                     radiobox->HandleKillFocus((WXHWND)wParam);
 812             }
 813             break;
 814
 815 #ifndef __WXWINCE__
 816         case WM_HELP:
 817             {
 818                 wxRadioBox *radiobox = (wxRadioBox *)wxGetWindowUserData(hwnd);
 819
 820                 wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
 821
 822                 bool processed = false;
 823
 824                 wxEvtHandler * const handler = radiobox->GetEventHandler();
 825
 826                 HELPINFO* info = (HELPINFO*) lParam;
 827                 if ( info->iContextType == HELPINFO_WINDOW )
 828                 {
 829                     for ( wxWindow* subjectOfHelp = radiobox;
 830                           subjectOfHelp;
 831                           subjectOfHelp = subjectOfHelp->GetParent() )
 832                     {
 833                         wxHelpEvent helpEvent(wxEVT_HELP,
 834                                               subjectOfHelp->GetId(),
 835                                               wxPoint(info->MousePos.x,
 836                                                       info->MousePos.y));
 837                         helpEvent.SetEventObject(radiobox);
 838                         if ( handler->ProcessEvent(helpEvent) )
 839                         {
 840                             processed = true;
 841                             break;
 842                         }
 843                     }
 844                 }
 845                 else if (info->iContextType == HELPINFO_MENUITEM)
 846                 {
 847                     wxHelpEvent helpEvent(wxEVT_HELP, info->iCtrlId);
 848                     helpEvent.SetEventObject(radiobox);
 849                     processed = handler->ProcessEvent(helpEvent);
 850                 }
 851
 852                 if ( processed )
 853                     return 0;
 854             }
 855             break;
 856 #endif // !__WXWINCE__
 857     }
 858
 859     return ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd, message, wParam, lParam);
 860 }
 861
 862 #endif // wxUSE_RADIOBOX