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/private.h"
  42
  43 #if wxUSE_TOOLTIPS
  44     #if !defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__)
  45         #include <commctrl.h>
  46     #endif
  47     #include "wx/tooltip.h"
  48 #endif // wxUSE_TOOLTIPS
  49
  50 // TODO: wxCONSTRUCTOR
  51 #if 0 // wxUSE_EXTENDED_RTTI
  52 WX_DEFINE_FLAGS( wxRadioBoxStyle )
  53
  54 wxBEGIN_FLAGS( wxRadioBoxStyle )
  55     // new style border flags, we put them first to
  56     // use them for streaming out
  57     wxFLAGS_MEMBER(wxBORDER_SIMPLE)
  58     wxFLAGS_MEMBER(wxBORDER_SUNKEN)
  59     wxFLAGS_MEMBER(wxBORDER_DOUBLE)
  60     wxFLAGS_MEMBER(wxBORDER_RAISED)
  61     wxFLAGS_MEMBER(wxBORDER_STATIC)
  62     wxFLAGS_MEMBER(wxBORDER_NONE)
  63
  64     // old style border flags
  65     wxFLAGS_MEMBER(wxSIMPLE_BORDER)
  66     wxFLAGS_MEMBER(wxSUNKEN_BORDER)
  67     wxFLAGS_MEMBER(wxDOUBLE_BORDER)
  68     wxFLAGS_MEMBER(wxRAISED_BORDER)
  69     wxFLAGS_MEMBER(wxSTATIC_BORDER)
  70     wxFLAGS_MEMBER(wxNO_BORDER)
  71
  72     // standard window styles
  73     wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
  74     wxFLAGS_MEMBER(wxCLIP_CHILDREN)
  75     wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
  76     wxFLAGS_MEMBER(wxWANTS_CHARS)
  77     wxFLAGS_MEMBER(wxNO_FULL_REPAINT_ON_RESIZE)
  78     wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
  79     wxFLAGS_MEMBER(wxVSCROLL)
  80     wxFLAGS_MEMBER(wxHSCROLL)
  81
  82     wxFLAGS_MEMBER(wxRA_SPECIFY_COLS)
  83     wxFLAGS_MEMBER(wxRA_HORIZONTAL)
  84     wxFLAGS_MEMBER(wxRA_SPECIFY_ROWS)
  85     wxFLAGS_MEMBER(wxRA_VERTICAL)
  86
  87 wxEND_FLAGS( wxRadioBoxStyle )
  88
  89 IMPLEMENT_DYNAMIC_CLASS_XTI(wxRadioBox, wxControl,"wx/radiobox.h")
  90
  91 wxBEGIN_PROPERTIES_TABLE(wxRadioBox)
  92     wxEVENT_PROPERTY( Select , wxEVT_COMMAND_RADIOBOX_SELECTED , wxCommandEvent )
  93     wxPROPERTY_FLAGS( WindowStyle , wxRadioBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
  94 wxEND_PROPERTIES_TABLE()
  95
  96 #else
  97 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox, wxControl)
  98 #endif
  99
 100 /*
 101         selection
 102         content
 103                 label
 104                 dimension
 105                 item
 106 */
 107
 108 // there are two possible ways to create the radio buttons: either as children
 109 // of the radiobox or as siblings of it - allow playing with both variants for
 110 // now, eventually we will choose the best one for our purposes
 111 //
 112 // two main problems are the keyboard navigation inside the radiobox (arrows
 113 // should switch between buttons, not pass focus to the next control) and the
 114 // tooltips - a tooltip is associated with the radiobox itself, not the
 115 // children...
 116 //
 117 // the problems with setting this to 1:
 118 // a) Alt-<mnemonic of radiobox> isn't handled properly by IsDialogMessage()
 119 //    because it sets focus to the next control accepting it which is not a
 120 //    radio button but a radiobox sibling in this case - the only solution to
 121 //    this would be to handle Alt-<mnemonic> ourselves
 122 // b) the problems with setting radiobox colours under Win98/2K were reported
 123 //    but I couldn't reproduce it so I have no idea about what causes it
 124 //
 125 // the problems with setting this to 0:
 126 // a) the tooltips are not shown for the radiobox - possible solution: make
 127 //    TTM_WINDOWFROMPOS handling code in msw/tooltip.cpp work (easier said than
 128 //    done because I don't know why it doesn't work)
 129 #define RADIOBTN_PARENT_IS_RADIOBOX 0
 130
 131 // ---------------------------------------------------------------------------
 132 // private functions
 133 // ---------------------------------------------------------------------------
 134
 135 // wnd proc for radio buttons
 136 #ifdef __WIN32__
 137 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hWnd,
 138                                            UINT message,
 139                                            WPARAM wParam,
 140                                            LPARAM lParam);
 141
 142 // ---------------------------------------------------------------------------
 143 // global vars
 144 // ---------------------------------------------------------------------------
 145
 146 // the pointer to standard radio button wnd proc
 147 static WXFARPROC s_wndprocRadioBtn = (WXFARPROC)NULL;
 148
 149 #endif // __WIN32__
 150
 151 // ===========================================================================
 152 // implementation
 153 // ===========================================================================
 154
 155 // ---------------------------------------------------------------------------
 156 // wxRadioBox
 157 // ---------------------------------------------------------------------------
 158
 159 int wxRadioBox::GetCount() const
 160 {
 161     return m_noItems;
 162 }
 163
 164 int wxRadioBox::GetColumnCount() const
 165 {
 166     return GetNumHor();
 167 }
 168
 169 int wxRadioBox::GetRowCount() const
 170 {
 171     return GetNumVer();
 172 }
 173
 174 // returns the number of rows
 175 int wxRadioBox::GetNumVer() const
 176 {
 177     if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 178     {
 179         return m_majorDim;
 180     }
 181     else
 182     {
 183         return (m_noItems + m_majorDim - 1)/m_majorDim;
 184     }
 185 }
 186
 187 // returns the number of columns
 188 int wxRadioBox::GetNumHor() const
 189 {
 190     if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 191     {
 192         return (m_noItems + m_majorDim - 1)/m_majorDim;
 193     }
 194     else
 195     {
 196         return m_majorDim;
 197     }
 198 }
 199
 200 bool wxRadioBox::MSWCommand(WXUINT cmd, WXWORD id)
 201 {
 202     if ( cmd == BN_CLICKED )
 203     {
 204         if (id == GetId())
 205             return TRUE;
 206
 207         int selectedButton = -1;
 208
 209         for ( int i = 0; i < m_noItems; i++ )
 210         {
 211             if ( id == wxGetWindowId(m_radioButtons[i]) )
 212             {
 213                 selectedButton = i;
 214
 215                 break;
 216             }
 217         }
 218
 219         if ( selectedButton == -1 )
 220         {
 221             // just ignore it - due to a hack with WM_NCHITTEST handling in our
 222             // wnd proc, we can receive dummy click messages when we click near
 223             // the radiobox edge (this is ugly but Julian wouldn't let me get
 224             // rid of this...)
 225             return FALSE;
 226         }
 227
 228         if ( selectedButton != m_selectedButton )
 229         {
 230             m_selectedButton = selectedButton;
 231
 232             SendNotificationEvent();
 233         }
 234         //else: don't generate events when the selection doesn't change
 235
 236         return TRUE;
 237     }
 238     else
 239         return FALSE;
 240 }
 241
 242 // Radio box item
 243 wxRadioBox::wxRadioBox()
 244 {
 245     m_selectedButton = -1;
 246     m_noItems = 0;
 247     m_noRowsOrCols = 0;
 248     m_radioButtons = NULL;
 249     m_majorDim = 0;
 250     m_radioWidth = NULL;
 251     m_radioHeight = NULL;
 252 }
 253
 254 bool wxRadioBox::Create(wxWindow *parent,
 255                         wxWindowID id,
 256                         const wxString& title,
 257                         const wxPoint& pos,
 258                         const wxSize& size,
 259                         int n,
 260                         const wxString choices[],
 261                         int majorDim,
 262                         long style,
 263                         const wxValidator& val,
 264                         const wxString& name)
 265 {
 266     // initialize members
 267     m_selectedButton = -1;
 268     m_noItems = 0;
 269
 270     m_majorDim = majorDim == 0 ? n : majorDim;
 271     m_noRowsOrCols = majorDim;
 272
 273     // common initialization
 274     if ( !CreateControl(parent, id, pos, size, style, val, name) )
 275         return FALSE;
 276
 277     // create the static box
 278     if ( !MSWCreateControl(wxT("BUTTON"), BS_GROUPBOX | WS_GROUP,
 279                            pos, size, title, 0) )
 280         return FALSE;
 281
 282     // and now create the buttons
 283     m_noItems = n;
 284 #if RADIOBTN_PARENT_IS_RADIOBOX
 285     HWND hwndParent = GetHwnd();
 286 #else
 287     HWND hwndParent = GetHwndOf(parent);
 288 #endif
 289
 290     // Some radio boxes test consecutive id.
 291     (void)NewControlId();
 292     m_radioButtons = new WXHWND[n];
 293     m_radioWidth = new int[n];
 294     m_radioHeight = new int[n];
 295
 296     WXHFONT hfont = 0;
 297     wxFont& font = GetFont();
 298     if ( font.Ok() )
 299     {
 300         hfont = font.GetResourceHandle();
 301     }
 302
 303     for ( int i = 0; i < n; i++ )
 304     {
 305         m_radioWidth[i] =
 306         m_radioHeight[i] = -1;
 307         long styleBtn = BS_AUTORADIOBUTTON | WS_TABSTOP | WS_CHILD | WS_VISIBLE;
 308         if ( i == 0 && style == 0 )
 309             styleBtn |= WS_GROUP;
 310
 311         long newId = NewControlId();
 312
 313         HWND hwndBtn = ::CreateWindow(_T("BUTTON"),
 314                                       choices[i],
 315                                       styleBtn,
 316                                       0, 0, 0, 0,   // will be set in SetSize()
 317                                       hwndParent,
 318                                       (HMENU)newId,
 319                                       wxGetInstance(),
 320                                       NULL);
 321
 322         if ( !hwndBtn )
 323         {
 324             wxLogLastError(wxT("CreateWindow(radio btn)"));
 325
 326             return FALSE;
 327         }
 328
 329         m_radioButtons[i] = (WXHWND)hwndBtn;
 330
 331         SubclassRadioButton((WXHWND)hwndBtn);
 332
 333         if ( hfont )
 334         {
 335             ::SendMessage(hwndBtn, WM_SETFONT, (WPARAM)hfont, 0L);
 336         }
 337
 338         m_subControls.Add(newId);
 339     }
 340
 341     // Create a dummy radio control to end the group.
 342     (void)::CreateWindow(_T("BUTTON"),
 343                          wxEmptyString,
 344                          WS_GROUP | BS_AUTORADIOBUTTON | WS_CHILD,
 345                          0, 0, 0, 0, hwndParent,
 346                          (HMENU)NewControlId(), wxGetInstance(), NULL);
 347
 348     SetSelection(0);
 349
 350     SetSize(pos.x, pos.y, size.x, size.y);
 351
 352     return TRUE;
 353 }
 354
 355 wxRadioBox::~wxRadioBox()
 356 {
 357     m_isBeingDeleted = TRUE;
 358
 359     if (m_radioButtons)
 360     {
 361         int i;
 362         for (i = 0; i < m_noItems; i++)
 363             ::DestroyWindow((HWND)m_radioButtons[i]);
 364         delete[] m_radioButtons;
 365     }
 366
 367     if (m_radioWidth)
 368         delete[] m_radioWidth;
 369     if (m_radioHeight)
 370         delete[] m_radioHeight;
 371
 372 }
 373
 374 void wxRadioBox::SetString(int item, const wxString& label)
 375 {
 376     wxCHECK_RET( item >= 0 && item < m_noItems, wxT("invalid radiobox index") );
 377
 378     m_radioWidth[item] = m_radioHeight[item] = -1;
 379     SetWindowText((HWND)m_radioButtons[item], label.c_str());
 380 }
 381
 382 void wxRadioBox::SetSelection(int N)
 383 {
 384     wxCHECK_RET( (N >= 0) && (N < m_noItems), wxT("invalid radiobox index") );
 385
 386     // Following necessary for Win32s, because Win32s translate BM_SETCHECK
 387     if (m_selectedButton >= 0 && m_selectedButton < m_noItems)
 388         ::SendMessage((HWND) m_radioButtons[m_selectedButton], BM_SETCHECK, 0, 0L);
 389
 390     ::SendMessage((HWND)m_radioButtons[N], BM_SETCHECK, 1, 0L);
 391
 392     m_selectedButton = N;
 393 }
 394
 395 // Get single selection, for single choice list items
 396 int wxRadioBox::GetSelection() const
 397 {
 398     return m_selectedButton;
 399 }
 400
 401 // Find string for position
 402 wxString wxRadioBox::GetString(int item) const
 403 {
 404     wxCHECK_MSG( item >= 0 && item < m_noItems, wxEmptyString,
 405                  wxT("invalid radiobox index") );
 406
 407     return wxGetWindowText(m_radioButtons[item]);
 408 }
 409
 410 // ----------------------------------------------------------------------------
 411 // size calculations
 412 // ----------------------------------------------------------------------------
 413
 414 wxSize wxRadioBox::GetMaxButtonSize() const
 415 {
 416     // calculate the max button size
 417     int widthMax = 0,
 418         heightMax = 0;
 419     for ( int i = 0 ; i < m_noItems; i++ )
 420     {
 421         int width, height;
 422         if ( m_radioWidth[i] < 0 )
 423         {
 424             GetTextExtent(wxGetWindowText(m_radioButtons[i]), &width, &height);
 425
 426             // adjust the size to take into account the radio box itself
 427             // FIXME this is totally bogus!
 428             width += RADIO_SIZE;
 429             height *= 3;
 430             height /= 2;
 431         }
 432         else
 433         {
 434             width = m_radioWidth[i];
 435             height = m_radioHeight[i];
 436         }
 437
 438         if ( widthMax < width )
 439             widthMax = width;
 440         if ( heightMax < height )
 441             heightMax = height;
 442     }
 443
 444     return wxSize(widthMax, heightMax);
 445 }
 446
 447 wxSize wxRadioBox::GetTotalButtonSize(const wxSize& sizeBtn) const
 448 {
 449     // the radiobox should be big enough for its buttons
 450     int cx1, cy1;
 451     wxGetCharSize(m_hWnd, &cx1, &cy1, &GetFont());
 452
 453     int extraHeight = cy1;
 454
 455     /* We'll assume the adjustments below are OK for Win 3.1 too
 456 #if defined(CTL3D) && !CTL3D
 457     // Requires a bigger group box in plain Windows
 458     extraHeight *= 3;
 459     extraHeight /= 2;
 460 #endif
 461     */
 462
 463     int height = GetNumVer() * sizeBtn.y + cy1/2 + extraHeight;
 464     int width  = GetNumHor() * (sizeBtn.x + cx1) + cx1;
 465
 466     // Add extra space under the label, if it exists.
 467     if (!wxControl::GetLabel().IsEmpty())
 468         height += cy1/2;
 469
 470     // and also wide enough for its label
 471     int widthLabel;
 472     GetTextExtent(GetTitle(), &widthLabel, NULL);
 473     widthLabel += RADIO_SIZE; // FIXME this is bogus too
 474     if ( widthLabel > width )
 475         width = widthLabel;
 476
 477     return wxSize(width, height);
 478 }
 479
 480 wxSize wxRadioBox::DoGetBestSize() const
 481 {
 482     return GetTotalButtonSize(GetMaxButtonSize());
 483 }
 484
 485 // Restored old code.
 486 void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 487 {
 488     int currentX, currentY;
 489     GetPosition(&currentX, &currentY);
 490     int widthOld, heightOld;
 491     GetSize(&widthOld, &heightOld);
 492
 493     int xx = x;
 494     int yy = y;
 495
 496     if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 497         xx = currentX;
 498     if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 499         yy = currentY;
 500
 501 #if RADIOBTN_PARENT_IS_RADIOBOX
 502     int y_offset = 0;
 503     int x_offset = 0;
 504 #else
 505     int y_offset = yy;
 506     int x_offset = xx;
 507 #endif
 508
 509     int cx1, cy1;
 510     wxGetCharSize(m_hWnd, &cx1, &cy1, & GetFont());
 511
 512     // Attempt to have a look coherent with other platforms: We compute the
 513     // biggest toggle dim, then we align all items according this value.
 514     wxSize maxSize = GetMaxButtonSize();
 515     int maxWidth = maxSize.x,
 516         maxHeight = maxSize.y;
 517
 518     wxSize totSize = GetTotalButtonSize(maxSize);
 519     int totWidth = totSize.x,
 520         totHeight = totSize.y;
 521
 522     // only change our width/height if asked for
 523     if ( width == -1 )
 524     {
 525         if ( sizeFlags & wxSIZE_AUTO_WIDTH )
 526             width = totWidth;
 527         else
 528             width = widthOld;
 529     }
 530
 531     if ( height == -1 )
 532     {
 533         if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
 534             height = totHeight;
 535         else
 536             height = heightOld;
 537     }
 538
 539     ::MoveWindow(GetHwnd(), xx, yy, width, height, TRUE);
 540
 541     // Now position all the buttons: the current button will be put at
 542     // wxPoint(x_offset, y_offset) and the new row/column will start at
 543     // startX/startY. The size of all buttons will be the same wxSize(maxWidth,
 544     // maxHeight) except for the buttons in the last column which should extend
 545     // to the right border of radiobox and thus can be wider than this.
 546
 547     // Also, remember that wxRA_SPECIFY_COLS means that we arrange buttons in
 548     // left to right order and m_majorDim is the number of columns while
 549     // wxRA_SPECIFY_ROWS means that the buttons are arranged top to bottom and
 550     // m_majorDim is the number of rows.
 551
 552     x_offset += cx1;
 553     y_offset += cy1;
 554
 555     // Add extra space under the label, if it exists.
 556     if (!wxControl::GetLabel().IsEmpty())
 557         y_offset += cy1/2;
 558
 559     int startX = x_offset;
 560     int startY = y_offset;
 561
 562     for ( int i = 0; i < m_noItems; i++ )
 563     {
 564         // the last button in the row may be wider than the other ones as the
 565         // radiobox may be wider than the sum of the button widths (as it
 566         // happens, for example, when the radiobox label is very long)
 567         bool isLastInTheRow;
 568         if ( m_windowStyle & wxRA_SPECIFY_COLS )
 569         {
 570             // item is the last in its row if it is a multiple of the number of
 571             // columns or if it is just the last item
 572             int n = i + 1;
 573             isLastInTheRow = ((n % m_majorDim) == 0) || (n == m_noItems);
 574         }
 575         else // wxRA_SPECIFY_ROWS
 576         {
 577             // item is the last in the row if it is in the last columns
 578             isLastInTheRow = i >= (m_noItems/m_majorDim)*m_majorDim;
 579         }
 580
 581         // is this the start of new row/column?
 582         if ( i && (i % m_majorDim == 0) )
 583         {
 584             if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 585             {
 586                 // start of new column
 587                 y_offset = startY;
 588                 x_offset += maxWidth + cx1;
 589             }
 590             else // start of new row
 591             {
 592                 x_offset = startX;
 593                 y_offset += maxHeight;
 594                 if (m_radioWidth[0]>0)
 595                     y_offset += cy1/2;
 596             }
 597         }
 598
 599         int widthBtn;
 600         if ( isLastInTheRow )
 601         {
 602             // make the button go to the end of radio box
 603             widthBtn = startX + width - x_offset - 2*cx1;
 604             if ( widthBtn < maxWidth )
 605                 widthBtn = maxWidth;
 606         }
 607         else
 608         {
 609             // normal button, always of the same size
 610             widthBtn = maxWidth;
 611         }
 612
 613         // VZ: make all buttons of the same, maximal size - like this they
 614         //     cover the radiobox entirely and the radiobox tooltips are always
 615         //     shown (otherwise they are not when the mouse pointer is in the
 616         //     radiobox part not belonging to any radiobutton)
 617         ::MoveWindow((HWND)m_radioButtons[i],
 618                      x_offset, y_offset, widthBtn, maxHeight,
 619                      TRUE);
 620
 621         // where do we put the next button?
 622         if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 623         {
 624             // below this one
 625             y_offset += maxHeight;
 626             if (m_radioWidth[0]>0)
 627                 y_offset += cy1/2;
 628         }
 629         else
 630         {
 631             // to the right of this one
 632             x_offset += widthBtn + cx1;
 633         }
 634     }
 635 }
 636
 637 void wxRadioBox::GetSize(int *width, int *height) const
 638 {
 639     RECT rect;
 640     rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
 641
 642     if (m_hWnd)
 643         wxFindMaxSize(m_hWnd, &rect);
 644
 645     int i;
 646     for (i = 0; i < m_noItems; i++)
 647         wxFindMaxSize(m_radioButtons[i], &rect);
 648
 649     *width = rect.right - rect.left;
 650     *height = rect.bottom - rect.top;
 651 }
 652
 653 void wxRadioBox::GetPosition(int *x, int *y) const
 654 {
 655     wxWindow *parent = GetParent();
 656     RECT rect = { -1, -1, -1, -1 };
 657
 658     int i;
 659     for (i = 0; i < m_noItems; i++)
 660         wxFindMaxSize(m_radioButtons[i], &rect);
 661
 662     if (m_hWnd)
 663         wxFindMaxSize(m_hWnd, &rect);
 664
 665     // Since we now have the absolute screen coords, if there's a parent we
 666     // must subtract its top left corner
 667     POINT point;
 668     point.x = rect.left;
 669     point.y = rect.top;
 670     if (parent)
 671     {
 672         ::ScreenToClient((HWND) parent->GetHWND(), &point);
 673     }
 674
 675     // We may be faking the client origin. So a window that's really at (0, 30)
 676     // may appear (to wxWin apps) to be at (0, 0).
 677     if (GetParent())
 678     {
 679         wxPoint pt(GetParent()->GetClientAreaOrigin());
 680         point.x -= pt.x;
 681         point.y -= pt.y;
 682     }
 683
 684     *x = point.x;
 685     *y = point.y;
 686 }
 687
 688 void wxRadioBox::SetFocus()
 689 {
 690     if (m_noItems > 0)
 691     {
 692         ::SetFocus((HWND)m_radioButtons[m_selectedButton == -1
 693                                             ? 0
 694                                             : m_selectedButton]);
 695     }
 696
 697 }
 698
 699 bool wxRadioBox::Show(bool show)
 700 {
 701     if ( !wxControl::Show(show) )
 702         return FALSE;
 703
 704     int nCmdShow = show ? SW_SHOW : SW_HIDE;
 705     for ( int i = 0; i < m_noItems; i++ )
 706     {
 707         ::ShowWindow((HWND)m_radioButtons[i], nCmdShow);
 708     }
 709
 710     return TRUE;
 711 }
 712
 713 // Enable a specific button
 714 void wxRadioBox::Enable(int item, bool enable)
 715 {
 716     wxCHECK_RET( item >= 0 && item < m_noItems,
 717                  wxT("invalid item in wxRadioBox::Enable()") );
 718
 719     ::EnableWindow((HWND) m_radioButtons[item], enable);
 720 }
 721
 722 // Enable all controls
 723 bool wxRadioBox::Enable(bool enable)
 724 {
 725     if ( !wxControl::Enable(enable) )
 726         return FALSE;
 727
 728     for (int i = 0; i < m_noItems; i++)
 729         ::EnableWindow((HWND) m_radioButtons[i], enable);
 730
 731     return TRUE;
 732 }
 733
 734 // Show a specific button
 735 void wxRadioBox::Show(int item, bool show)
 736 {
 737     wxCHECK_RET( item >= 0 && item < m_noItems,
 738                  wxT("invalid item in wxRadioBox::Show()") );
 739
 740     ::ShowWindow((HWND)m_radioButtons[item], show ? SW_SHOW : SW_HIDE);
 741 }
 742
 743 bool wxRadioBox::ContainsHWND(WXHWND hWnd) const
 744 {
 745     size_t count = GetCount();
 746     for ( size_t i = 0; i < count; i++ )
 747     {
 748         if ( GetRadioButtons()[i] == hWnd )
 749             return TRUE;
 750     }
 751
 752     return FALSE;
 753 }
 754
 755 void wxRadioBox::Command(wxCommandEvent & event)
 756 {
 757     SetSelection (event.m_commandInt);
 758     SetFocus();
 759     ProcessCommand (event);
 760 }
 761
 762 // NB: if this code is changed, wxGetWindowForHWND() which relies on having the
 763 //     radiobox pointer in GWL_USERDATA for radio buttons must be updated too!
 764 void wxRadioBox::SubclassRadioButton(WXHWND hWndBtn)
 765 {
 766     HWND hwndBtn = (HWND)hWndBtn;
 767
 768     if ( !s_wndprocRadioBtn )
 769         s_wndprocRadioBtn = (WXFARPROC)::GetWindowLong(hwndBtn, GWL_WNDPROC);
 770
 771     ::SetWindowLong(hwndBtn, GWL_WNDPROC, (long)wxRadioBtnWndProc);
 772     ::SetWindowLong(hwndBtn, GWL_USERDATA, (long)this);
 773 }
 774
 775 void wxRadioBox::SendNotificationEvent()
 776 {
 777     wxCommandEvent event(wxEVT_COMMAND_RADIOBOX_SELECTED, m_windowId);
 778     event.SetInt( m_selectedButton );
 779     event.SetString( GetString(m_selectedButton) );
 780     event.SetEventObject( this );
 781     ProcessCommand(event);
 782 }
 783
 784 bool wxRadioBox::SetFont(const wxFont& font)
 785 {
 786     if ( !wxControl::SetFont(font) )
 787     {
 788         // nothing to do
 789         return FALSE;
 790     }
 791
 792     // also set the font of our radio buttons
 793     WXHFONT hfont = wxFont(font).GetResourceHandle();
 794     for ( int n = 0; n < m_noItems; n++ )
 795     {
 796         HWND hwndBtn = (HWND)m_radioButtons[n];
 797         ::SendMessage(hwndBtn, WM_SETFONT, (WPARAM)hfont, 0L);
 798
 799         // otherwise the buttons are not redrawn correctly
 800         ::InvalidateRect(hwndBtn, NULL, FALSE /* don't erase bg */);
 801     }
 802
 803     return TRUE;
 804 }
 805
 806 // ----------------------------------------------------------------------------
 807 // our window proc
 808 // ----------------------------------------------------------------------------
 809
 810 long wxRadioBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 811 {
 812     switch ( nMsg )
 813     {
 814 #ifdef __WIN32__
 815         case WM_CTLCOLORSTATIC:
 816             // set the colour of the radio buttons to be the same as ours
 817             {
 818                 HDC hdc = (HDC)wParam;
 819
 820                 const wxColour& colBack = GetBackgroundColour();
 821                 ::SetBkColor(hdc, wxColourToRGB(colBack));
 822                 ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));
 823
 824                 wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBack, wxSOLID);
 825
 826                 return (WXHBRUSH)brush->GetResourceHandle();
 827             }
 828 #endif // Win32
 829
 830         // VZ: this code breaks radiobox redrawing under Windows XP, don't use
 831         //     it. If you need to get messages from the static controls,
 832         //     create them as a child of another (non static) window
 833 #if 0
 834         // This is required for the radiobox to be sensitive to mouse input,
 835         // e.g. for Dialog Editor.
 836         case WM_NCHITTEST:
 837             {
 838                 int xPos = LOWORD(lParam);  // horizontal position of cursor
 839                 int yPos = HIWORD(lParam);  // vertical position of cursor
 840
 841                 ScreenToClient(&xPos, &yPos);
 842
 843                 // Make sure you can drag by the top of the groupbox, but let
 844                 // other (enclosed) controls get mouse events also
 845                 if (yPos < 10)
 846                     return (long)HTCLIENT;
 847             }
 848             break;
 849 #endif // 0
 850     }
 851
 852     return wxControl::MSWWindowProc(nMsg, wParam, lParam);
 853 }
 854
 855 WXHBRUSH wxRadioBox::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSED(nCtlColor),
 856 #if wxUSE_CTL3D
 857                                WXUINT message,
 858                                WXWPARAM wParam,
 859                                WXLPARAM lParam
 860 #else
 861                                WXUINT WXUNUSED(message),
 862                                WXWPARAM WXUNUSED(wParam),
 863                                WXLPARAM WXUNUSED(lParam)
 864 #endif
 865     )
 866 {
 867 #if wxUSE_CTL3D
 868     if ( m_useCtl3D )
 869     {
 870         HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
 871         return (WXHBRUSH) hbrush;
 872     }
 873 #endif // wxUSE_CTL3D
 874
 875     HDC hdc = (HDC)pDC;
 876     wxColour colBack = GetBackgroundColour();
 877
 878     if (!IsEnabled())
 879         colBack = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 880
 881     ::SetBkColor(hdc, wxColourToRGB(colBack));
 882     ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));
 883
 884     wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBack, wxSOLID);
 885
 886     return (WXHBRUSH)brush->GetResourceHandle();
 887 }
 888
 889
 890 // ---------------------------------------------------------------------------
 891 // window proc for radio buttons
 892 // ---------------------------------------------------------------------------
 893
 894 #ifdef __WIN32__
 895
 896 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hwnd,
 897                                            UINT message,
 898                                            WPARAM wParam,
 899                                            LPARAM lParam)
 900 {
 901     switch ( message )
 902     {
 903         case WM_GETDLGCODE:
 904             // we must tell IsDialogMessage()/our kbd processing code that we
 905             // want to process arrows ourselves because neither of them is
 906             // smart enough to handle arrows properly for us
 907             {
 908                 long lDlgCode = ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd,
 909                                                  message, wParam, lParam);
 910
 911                 return lDlgCode | DLGC_WANTARROWS;
 912             }
 913
 914 #if wxUSE_TOOLTIPS
 915         case WM_NOTIFY:
 916             {
 917                 NMHDR* hdr = (NMHDR *)lParam;
 918                 if ( hdr->code == TTN_NEEDTEXT )
 919                 {
 920                     wxRadioBox *radiobox = (wxRadioBox *)
 921                         ::GetWindowLong(hwnd, GWL_USERDATA);
 922
 923                     wxCHECK_MSG( radiobox, 0,
 924                                  wxT("radio button without radio box?") );
 925
 926                     wxToolTip *tooltip = radiobox->GetToolTip();
 927                     if ( tooltip )
 928                     {
 929                         TOOLTIPTEXT *ttt = (TOOLTIPTEXT *)lParam;
 930                         ttt->lpszText = (wxChar *)tooltip->GetTip().c_str();
 931                     }
 932
 933                     // processed
 934                     return 0;
 935                 }
 936             }
 937             break;
 938 #endif // wxUSE_TOOLTIPS
 939
 940         case WM_KEYDOWN:
 941             {
 942                 wxRadioBox *radiobox = (wxRadioBox *)
 943                     ::GetWindowLong(hwnd, GWL_USERDATA);
 944
 945                 wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
 946
 947                 bool processed = TRUE;
 948
 949                 wxDirection dir;
 950                 switch ( wParam )
 951                 {
 952                     case VK_UP:
 953                         dir = wxUP;
 954                         break;
 955
 956                     case VK_LEFT:
 957                         dir = wxLEFT;
 958                         break;
 959
 960                     case VK_DOWN:
 961                         dir = wxDOWN;
 962                         break;
 963
 964                     case VK_RIGHT:
 965                         dir = wxRIGHT;
 966                         break;
 967
 968                     default:
 969                         processed = FALSE;
 970
 971                         // just to suppress the compiler warning
 972                         dir = wxALL;
 973                 }
 974
 975                 if ( processed )
 976                 {
 977                     int selOld = radiobox->GetSelection();
 978                     int selNew = radiobox->GetNextItem
 979                                  (
 980                                   selOld,
 981                                   dir,
 982                                   radiobox->GetWindowStyle()
 983                                  );
 984
 985                     if ( selNew != selOld )
 986                     {
 987                         radiobox->SetSelection(selNew);
 988                         radiobox->SetFocus();
 989
 990                         // emulate the button click
 991                         radiobox->SendNotificationEvent();
 992
 993                         return 0;
 994                     }
 995                 }
 996             }
 997             break;
 998
 999 #ifdef __WIN32__
1000         case WM_HELP:
1001             {
1002                 wxRadioBox *radiobox = (wxRadioBox *)
1003                         ::GetWindowLong(hwnd, GWL_USERDATA);
1004
1005                 wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
1006
1007                 bool processed = TRUE;
1008
1009                 // HELPINFO doesn't seem to be supported on WinCE.
1010 #ifndef __WXWINCE__
1011                 HELPINFO* info = (HELPINFO*) lParam;
1012                 // Don't yet process menu help events, just windows
1013                 if (info->iContextType == HELPINFO_WINDOW)
1014 #endif
1015                 {
1016                     wxWindow* subjectOfHelp = radiobox;
1017                     bool eventProcessed = FALSE;
1018                     while (subjectOfHelp && !eventProcessed)
1019                     {
1020                         wxHelpEvent helpEvent(wxEVT_HELP, subjectOfHelp->GetId(),
1021 #ifdef __WXWINCE__
1022                                               wxPoint(0, 0)
1023 #else
1024                                               wxPoint(info->MousePos.x, info->MousePos.y)
1025 #endif
1026                             ) ; // info->iCtrlId);
1027                         helpEvent.SetEventObject(radiobox);
1028                         eventProcessed = radiobox->GetEventHandler()->ProcessEvent(helpEvent);
1029
1030                         // Go up the window hierarchy until the event is handled (or not)
1031                         subjectOfHelp = subjectOfHelp->GetParent();
1032                     }
1033                     processed = eventProcessed;
1034                 }
1035 #ifndef __WXWINCE__
1036                 else if (info->iContextType == HELPINFO_MENUITEM)
1037                 {
1038                     wxHelpEvent helpEvent(wxEVT_HELP, info->iCtrlId) ;
1039                     helpEvent.SetEventObject(radiobox);
1040                     processed = radiobox->GetEventHandler()->ProcessEvent(helpEvent);
1041                 }
1042                 else
1043                     processed = FALSE;
1044 #endif
1045                 if (processed)
1046                     return 0;
1047
1048                 break;
1049             }
1050 #endif // __WIN32__
1051     }
1052
1053     return ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd, message, wParam, lParam);
1054 }
1055
1056 #endif // __WIN32__
1057
1058 #endif // wxUSE_RADIOBOX