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],
 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     // Have to invalidate the best size as it may have been calculated
 210     // before the number of buttons was known
 211     InvalidateBestSize();
 212
 213     SetMajorDim(majorDim == 0 ? n : majorDim, style);
 214     SetSelection(0);
 215     SetSize(pos.x, pos.y, size.x, size.y);
 216
 217     // Now that we have items determine what is the best size and set it.
 218     SetInitialSize(size);
 219
 220     return true;
 221 }
 222
 223 bool wxRadioBox::Create(wxWindow *parent,
 224                         wxWindowID id,
 225                         const wxString& title,
 226                         const wxPoint& pos,
 227                         const wxSize& size,
 228                         const wxArrayString& choices,
 229                         int majorDim,
 230                         long style,
 231                         const wxValidator& val,
 232                         const wxString& name)
 233 {
 234     wxCArrayString chs(choices);
 235     return Create(parent, id, title, pos, size, chs.GetCount(),
 236                   chs.GetStrings(), majorDim, style, val, name);
 237 }
 238
 239 wxRadioBox::~wxRadioBox()
 240 {
 241     m_isBeingDeleted = true;
 242
 243     delete m_radioButtons;
 244     delete[] m_radioWidth;
 245     delete[] m_radioHeight;
 246 }
 247
 248 // NB: if this code is changed, wxGetWindowForHWND() which relies on having the
 249 //     radiobox pointer in GWL_USERDATA for radio buttons must be updated too!
 250 void wxRadioBox::SubclassRadioButton(WXHWND hWndBtn)
 251 {
 252     HWND hwndBtn = (HWND)hWndBtn;
 253
 254     if ( !s_wndprocRadioBtn )
 255         s_wndprocRadioBtn = (WXFARPROC)wxGetWindowProc(hwndBtn);
 256
 257     wxSetWindowProc(hwndBtn, wxRadioBtnWndProc);
 258     wxSetWindowUserData(hwndBtn, this);
 259 }
 260
 261 // ----------------------------------------------------------------------------
 262 // events generation
 263 // ----------------------------------------------------------------------------
 264
 265 bool wxRadioBox::MSWCommand(WXUINT cmd, WXWORD id)
 266 {
 267     if ( cmd == BN_CLICKED )
 268     {
 269         if (id == GetId())
 270             return true;
 271
 272         int selectedButton = wxNOT_FOUND;
 273
 274         const unsigned int count = GetCount();
 275         for ( unsigned int i = 0; i < count; i++ )
 276         {
 277             if ( id == wxGetWindowId((*m_radioButtons)[i]) )
 278             {
 279                 selectedButton = i;
 280
 281                 break;
 282             }
 283         }
 284
 285         if ( selectedButton == wxNOT_FOUND )
 286         {
 287             // just ignore it - due to a hack with WM_NCHITTEST handling in our
 288             // wnd proc, we can receive dummy click messages when we click near
 289             // the radiobox edge (this is ugly but Julian wouldn't let me get
 290             // rid of this...)
 291             return false;
 292         }
 293
 294         if ( selectedButton != m_selectedButton )
 295         {
 296             m_selectedButton = selectedButton;
 297
 298             SendNotificationEvent();
 299         }
 300         //else: don't generate events when the selection doesn't change
 301
 302         return true;
 303     }
 304     else
 305         return false;
 306 }
 307
 308 void wxRadioBox::Command(wxCommandEvent & event)
 309 {
 310     SetSelection (event.GetInt());
 311     SetFocus();
 312     ProcessCommand(event);
 313 }
 314
 315 void wxRadioBox::SendNotificationEvent()
 316 {
 317     wxCommandEvent event(wxEVT_COMMAND_RADIOBOX_SELECTED, m_windowId);
 318     event.SetInt( m_selectedButton );
 319     event.SetString(GetString(m_selectedButton));
 320     event.SetEventObject( this );
 321     ProcessCommand(event);
 322 }
 323
 324 // ----------------------------------------------------------------------------
 325 // simple accessors
 326 // ----------------------------------------------------------------------------
 327
 328 unsigned int wxRadioBox::GetCount() const
 329 {
 330     return m_radioButtons ? m_radioButtons->GetCount() : 0u;
 331 }
 332
 333 void wxRadioBox::SetString(unsigned int item, const wxString& label)
 334 {
 335     wxCHECK_RET( IsValid(item), wxT("invalid radiobox index") );
 336
 337     m_radioWidth[item] =
 338     m_radioHeight[item] = wxDefaultCoord;
 339
 340     ::SetWindowText((*m_radioButtons)[item], label.c_str());
 341
 342     InvalidateBestSize();
 343 }
 344
 345 void wxRadioBox::SetSelection(int N)
 346 {
 347     wxCHECK_RET( IsValid(N), wxT("invalid radiobox index") );
 348
 349     // unselect the old button
 350     if ( m_selectedButton != wxNOT_FOUND )
 351         ::SendMessage((*m_radioButtons)[m_selectedButton], BM_SETCHECK, 0, 0L);
 352
 353     // and select the new one
 354     ::SendMessage((*m_radioButtons)[N], BM_SETCHECK, 1, 0L);
 355
 356     m_selectedButton = N;
 357 }
 358
 359 // Find string for position
 360 wxString wxRadioBox::GetString(unsigned int item) const
 361 {
 362     wxCHECK_MSG( IsValid(item), wxEmptyString,
 363                  wxT("invalid radiobox index") );
 364
 365     return wxGetWindowText((*m_radioButtons)[item]);
 366 }
 367
 368 void wxRadioBox::SetFocus()
 369 {
 370     if ( GetCount() > 0 )
 371     {
 372         ::SetFocus((*m_radioButtons)[m_selectedButton == wxNOT_FOUND
 373                                         ? 0
 374                                         : m_selectedButton]);
 375     }
 376 }
 377
 378 // Enable a specific button
 379 bool wxRadioBox::Enable(unsigned int item, bool enable)
 380 {
 381     wxCHECK_MSG( IsValid(item), false,
 382                  wxT("invalid item in wxRadioBox::Enable()") );
 383
 384     BOOL ret = ::EnableWindow((*m_radioButtons)[item], enable);
 385
 386     return (ret == 0) != enable;
 387 }
 388
 389 bool wxRadioBox::IsItemEnabled(unsigned int item) const
 390 {
 391     wxCHECK_MSG( IsValid(item), false,
 392                  wxT("invalid item in wxRadioBox::IsItemEnabled()") );
 393
 394     return ::IsWindowEnabled((*m_radioButtons)[item]) != 0;
 395 }
 396
 397 // Show a specific button
 398 bool wxRadioBox::Show(unsigned int item, bool show)
 399 {
 400     wxCHECK_MSG( IsValid(item), false,
 401                  wxT("invalid item in wxRadioBox::Show()") );
 402
 403     BOOL ret = ::ShowWindow((*m_radioButtons)[item], show ? SW_SHOW : SW_HIDE);
 404
 405     bool changed = (ret != 0) != show;
 406     if ( changed )
 407     {
 408         InvalidateBestSize();
 409     }
 410
 411     return changed;
 412 }
 413
 414 bool wxRadioBox::IsItemShown(unsigned int item) const
 415 {
 416     wxCHECK_MSG( IsValid(item), false,
 417                  wxT("invalid item in wxRadioBox::IsItemShown()") );
 418
 419     // don't use IsWindowVisible() here because it would return false if the
 420     // radiobox itself is hidden while we want to only return false if this
 421     // button specifically is hidden
 422     return (::GetWindowLong((*m_radioButtons)[item],
 423                             GWL_STYLE) & WS_VISIBLE) != 0;
 424 }
 425
 426 #if wxUSE_TOOLTIPS
 427
 428 bool wxRadioBox::HasToolTips() const
 429 {
 430     return wxStaticBox::HasToolTips() || wxRadioBoxBase::HasItemToolTips();
 431 }
 432
 433 void wxRadioBox::DoSetItemToolTip(unsigned int item, wxToolTip *tooltip)
 434 {
 435     // we have already checked for the item to be valid in wxRadioBoxBase
 436     const HWND hwndRbtn = (*m_radioButtons)[item];
 437     if ( tooltip != NULL )
 438         tooltip->Add(hwndRbtn);
 439     else // unset the tooltip
 440         wxToolTip::Remove(hwndRbtn);
 441 }
 442
 443 #endif // wxUSE_TOOLTIPS
 444
 445 WX_FORWARD_STD_METHODS_TO_SUBWINDOWS(wxRadioBox, wxStaticBox, m_radioButtons)
 446
 447 // ----------------------------------------------------------------------------
 448 // size calculations
 449 // ----------------------------------------------------------------------------
 450
 451 wxSize wxRadioBox::GetMaxButtonSize() const
 452 {
 453     // calculate the max button size
 454     int widthMax = 0,
 455         heightMax = 0;
 456     const unsigned int count = GetCount();
 457     for ( unsigned int i = 0 ; i < count; i++ )
 458     {
 459         int width, height;
 460         if ( m_radioWidth[i] < 0 )
 461         {
 462             GetTextExtent(wxGetWindowText((*m_radioButtons)[i]), &width, &height);
 463
 464             // adjust the size to take into account the radio box itself
 465             // FIXME this is totally bogus!
 466             width += RADIO_SIZE;
 467             height *= 3;
 468             height /= 2;
 469         }
 470         else
 471         {
 472             width = m_radioWidth[i];
 473             height = m_radioHeight[i];
 474         }
 475
 476         if ( widthMax < width )
 477             widthMax = width;
 478         if ( heightMax < height )
 479             heightMax = height;
 480     }
 481
 482     return wxSize(widthMax, heightMax);
 483 }
 484
 485 wxSize wxRadioBox::GetTotalButtonSize(const wxSize& sizeBtn) const
 486 {
 487     // the radiobox should be big enough for its buttons
 488     int cx1, cy1;
 489     wxGetCharSize(m_hWnd, &cx1, &cy1, GetFont());
 490
 491     int extraHeight = cy1;
 492
 493     int height = GetRowCount() * sizeBtn.y + cy1/2 + extraHeight;
 494     int width  = GetColumnCount() * (sizeBtn.x + cx1) + cx1;
 495
 496     // Add extra space under the label, if it exists.
 497     if (!wxControl::GetLabel().empty())
 498         height += cy1/2;
 499
 500     // and also wide enough for its label
 501     int widthLabel;
 502     GetTextExtent(GetLabelText(), &widthLabel, NULL);
 503     widthLabel += RADIO_SIZE; // FIXME this is bogus too
 504     if ( widthLabel > width )
 505         width = widthLabel;
 506
 507     return wxSize(width, height);
 508 }
 509
 510 wxSize wxRadioBox::DoGetBestSize() const
 511 {
 512     wxSize best = GetTotalButtonSize(GetMaxButtonSize());
 513     CacheBestSize(best);
 514     return best;
 515 }
 516
 517 // Restored old code.
 518 void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 519 {
 520     int currentX, currentY;
 521     GetPosition(&currentX, &currentY);
 522     int widthOld, heightOld;
 523     GetSize(&widthOld, &heightOld);
 524
 525     int xx = x;
 526     int yy = y;
 527
 528     if (x == wxDefaultCoord && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 529         xx = currentX;
 530     if (y == wxDefaultCoord && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 531         yy = currentY;
 532
 533     int y_offset = yy;
 534     int x_offset = xx;
 535
 536     int cx1, cy1;
 537     wxGetCharSize(m_hWnd, &cx1, &cy1, GetFont());
 538
 539     // Attempt to have a look coherent with other platforms: We compute the
 540     // biggest toggle dim, then we align all items according this value.
 541     wxSize maxSize = GetMaxButtonSize();
 542     int maxWidth = maxSize.x,
 543         maxHeight = maxSize.y;
 544
 545     wxSize totSize = GetTotalButtonSize(maxSize);
 546     int totWidth = totSize.x,
 547         totHeight = totSize.y;
 548
 549     // only change our width/height if asked for
 550     if ( width == wxDefaultCoord )
 551     {
 552         if ( sizeFlags & wxSIZE_AUTO_WIDTH )
 553             width = totWidth;
 554         else
 555             width = widthOld;
 556     }
 557
 558     if ( height == wxDefaultCoord )
 559     {
 560         if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
 561             height = totHeight;
 562         else
 563             height = heightOld;
 564     }
 565
 566     DoMoveWindow(xx, yy, width, height);
 567
 568     // Now position all the buttons: the current button will be put at
 569     // wxPoint(x_offset, y_offset) and the new row/column will start at
 570     // startX/startY. The size of all buttons will be the same wxSize(maxWidth,
 571     // maxHeight) except for the buttons in the last column which should extend
 572     // to the right border of radiobox and thus can be wider than this.
 573
 574     // Also, remember that wxRA_SPECIFY_COLS means that we arrange buttons in
 575     // left to right order and GetMajorDim() is the number of columns while
 576     // wxRA_SPECIFY_ROWS means that the buttons are arranged top to bottom and
 577     // GetMajorDim() is the number of rows.
 578
 579     x_offset += cx1;
 580     y_offset += cy1;
 581
 582     // Add extra space under the label, if it exists.
 583     if (!wxControl::GetLabel().empty())
 584         y_offset += cy1/2;
 585
 586     int startX = x_offset;
 587     int startY = y_offset;
 588
 589     const unsigned int count = GetCount();
 590     for (unsigned int i = 0; i < count; i++)
 591     {
 592         // the last button in the row may be wider than the other ones as the
 593         // radiobox may be wider than the sum of the button widths (as it
 594         // happens, for example, when the radiobox label is very long)
 595         bool isLastInTheRow;
 596         if ( m_windowStyle & wxRA_SPECIFY_COLS )
 597         {
 598             // item is the last in its row if it is a multiple of the number of
 599             // columns or if it is just the last item
 600             unsigned int n = i + 1;
 601             isLastInTheRow = ((n % GetMajorDim()) == 0) || (n == count);
 602         }
 603         else // wxRA_SPECIFY_ROWS
 604         {
 605             // item is the last in the row if it is in the last columns
 606             isLastInTheRow = i >= (count/GetMajorDim())*GetMajorDim();
 607         }
 608
 609         // is this the start of new row/column?
 610         if ( i && (i % GetMajorDim() == 0) )
 611         {
 612             if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 613             {
 614                 // start of new column
 615                 y_offset = startY;
 616                 x_offset += maxWidth + cx1;
 617             }
 618             else // start of new row
 619             {
 620                 x_offset = startX;
 621                 y_offset += maxHeight;
 622                 if (m_radioWidth[0]>0)
 623                     y_offset += cy1/2;
 624             }
 625         }
 626
 627         int widthBtn;
 628         if ( isLastInTheRow )
 629         {
 630             // make the button go to the end of radio box
 631             widthBtn = startX + width - x_offset - 2*cx1;
 632             if ( widthBtn < maxWidth )
 633                 widthBtn = maxWidth;
 634         }
 635         else
 636         {
 637             // normal button, always of the same size
 638             widthBtn = maxWidth;
 639         }
 640
 641         // make all buttons of the same, maximal size - like this they cover
 642         // the radiobox entirely and the radiobox tooltips are always shown
 643         // (otherwise they are not when the mouse pointer is in the radiobox
 644         // part not belonging to any radiobutton)
 645         DoMoveSibling((*m_radioButtons)[i], x_offset, y_offset, widthBtn, maxHeight);
 646
 647         // where do we put the next button?
 648         if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 649         {
 650             // below this one
 651             y_offset += maxHeight;
 652             if (m_radioWidth[0]>0)
 653                 y_offset += cy1/2;
 654         }
 655         else
 656         {
 657             // to the right of this one
 658             x_offset += widthBtn + cx1;
 659         }
 660     }
 661 }
 662
 663 int wxRadioBox::GetItemFromPoint(const wxPoint& pt) const
 664 {
 665     const unsigned int count = GetCount();
 666     for ( unsigned int i = 0; i < count; i++ )
 667     {
 668         RECT rect = wxGetWindowRect((*m_radioButtons)[i]);
 669
 670         if ( rect.left <= pt.x && pt.x < rect.right &&
 671                 rect.top  <= pt.y && pt.y < rect.bottom )
 672         {
 673             return i;
 674         }
 675     }
 676
 677     return wxNOT_FOUND;
 678 }
 679
 680 // ----------------------------------------------------------------------------
 681 // radio box drawing
 682 // ----------------------------------------------------------------------------
 683
 684 #ifndef __WXWINCE__
 685
 686 WXHRGN wxRadioBox::MSWGetRegionWithoutChildren()
 687 {
 688     RECT rc;
 689     ::GetWindowRect(GetHwnd(), &rc);
 690     HRGN hrgn = ::CreateRectRgn(rc.left, rc.top, rc.right + 1, rc.bottom + 1);
 691
 692     const unsigned int count = GetCount();
 693     for ( unsigned int i = 0; i < count; ++i )
 694     {
 695         // don't clip out hidden children
 696         if ( !IsItemShown(i) )
 697             continue;
 698
 699         ::GetWindowRect((*m_radioButtons)[i], &rc);
 700         AutoHRGN hrgnchild(::CreateRectRgnIndirect(&rc));
 701         ::CombineRgn(hrgn, hrgn, hrgnchild, RGN_DIFF);
 702     }
 703
 704     return (WXHRGN)hrgn;
 705 }
 706
 707 #endif // __WXWINCE__
 708
 709 // ---------------------------------------------------------------------------
 710 // window proc for radio buttons
 711 // ---------------------------------------------------------------------------
 712
 713 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hwnd,
 714                                            UINT message,
 715                                            WPARAM wParam,
 716                                            LPARAM lParam)
 717 {
 718     switch ( message )
 719     {
 720         case WM_GETDLGCODE:
 721             // we must tell IsDialogMessage()/our kbd processing code that we
 722             // want to process arrows ourselves because neither of them is
 723             // smart enough to handle arrows properly for us
 724             {
 725                 long lDlgCode = ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd,
 726                                                  message, wParam, lParam);
 727
 728                 return lDlgCode | DLGC_WANTARROWS;
 729             }
 730
 731         case WM_KEYDOWN:
 732             {
 733                 wxRadioBox *radiobox = (wxRadioBox *)wxGetWindowUserData(hwnd);
 734
 735                 wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
 736
 737                 bool processed = true;
 738
 739                 wxDirection dir;
 740                 switch ( wParam )
 741                 {
 742                     case VK_UP:
 743                         dir = wxUP;
 744                         break;
 745
 746                     case VK_LEFT:
 747                         dir = wxLEFT;
 748                         break;
 749
 750                     case VK_DOWN:
 751                         dir = wxDOWN;
 752                         break;
 753
 754                     case VK_RIGHT:
 755                         dir = wxRIGHT;
 756                         break;
 757
 758                     default:
 759                         processed = false;
 760
 761                         // just to suppress the compiler warning
 762                         dir = wxALL;
 763                 }
 764
 765                 if ( processed )
 766                 {
 767                     int selOld = radiobox->GetSelection();
 768                     int selNew = radiobox->GetNextItem
 769                                  (
 770                                   selOld,
 771                                   dir,
 772                                   radiobox->GetWindowStyle()
 773                                  );
 774
 775                     if ( selNew != selOld )
 776                     {
 777                         radiobox->SetSelection(selNew);
 778                         radiobox->SetFocus();
 779
 780                         // emulate the button click
 781                         radiobox->SendNotificationEvent();
 782
 783                         return 0;
 784                     }
 785                 }
 786             }
 787             break;
 788
 789         case WM_SETFOCUS:
 790         case WM_KILLFOCUS:
 791             {
 792                 wxRadioBox *radiobox = (wxRadioBox *)wxGetWindowUserData(hwnd);
 793
 794                 wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
 795
 796                 // if we don't do this, no focus events are generated for the
 797                 // radiobox and, besides, we need to notify the parent about
 798                 // the focus change, otherwise the focus handling logic in
 799                 // wxControlContainer doesn't work
 800                 if ( message == WM_SETFOCUS )
 801                     radiobox->HandleSetFocus((WXHWND)wParam);
 802                 else
 803                     radiobox->HandleKillFocus((WXHWND)wParam);
 804             }
 805             break;
 806
 807 #ifndef __WXWINCE__
 808         case WM_HELP:
 809             {
 810                 wxRadioBox *radiobox = (wxRadioBox *)wxGetWindowUserData(hwnd);
 811
 812                 wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
 813
 814                 bool processed = false;
 815
 816                 wxEvtHandler * const handler = radiobox->GetEventHandler();
 817
 818                 HELPINFO* info = (HELPINFO*) lParam;
 819                 if ( info->iContextType == HELPINFO_WINDOW )
 820                 {
 821                     for ( wxWindow* subjectOfHelp = radiobox;
 822                           subjectOfHelp;
 823                           subjectOfHelp = subjectOfHelp->GetParent() )
 824                     {
 825                         wxHelpEvent helpEvent(wxEVT_HELP,
 826                                               subjectOfHelp->GetId(),
 827                                               wxPoint(info->MousePos.x,
 828                                                       info->MousePos.y));
 829                         helpEvent.SetEventObject(radiobox);
 830                         if ( handler->ProcessEvent(helpEvent) )
 831                         {
 832                             processed = true;
 833                             break;
 834                         }
 835                     }
 836                 }
 837                 else if (info->iContextType == HELPINFO_MENUITEM)
 838                 {
 839                     wxHelpEvent helpEvent(wxEVT_HELP, info->iCtrlId);
 840                     helpEvent.SetEventObject(radiobox);
 841                     processed = handler->ProcessEvent(helpEvent);
 842                 }
 843
 844                 if ( processed )
 845                     return 0;
 846             }
 847             break;
 848 #endif // !__WXWINCE__
 849     }
 850
 851     return ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd, message, wParam, lParam);
 852 }
 853
 854 #endif // wxUSE_RADIOBOX