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 and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ===========================================================================
  13 // declarations
  14 // ===========================================================================
  15
  16 // ---------------------------------------------------------------------------
  17 // headers
  18 // ---------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "radiobox.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #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 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox, wxControl)
  51
  52 // there are two possible ways to create the radio buttons: either as children
  53 // of the radiobox or as siblings of it - allow playing with both variants for
  54 // now, eventually we will choose the best one for our purposes
  55 //
  56 // two main problems are the keyboard navigation inside the radiobox (arrows
  57 // should switch between buttons, not pass focus to the next control) and the
  58 // tooltips - a tooltip is associated with the radiobox itself, not the
  59 // children...
  60 //
  61 // the problems with setting this to 1:
  62 // a) Alt-<mnemonic of radiobox> isn't handled properly by IsDialogMessage()
  63 //    because it sets focus to the next control accepting it which is not a
  64 //    radio button but a radiobox sibling in this case - the only solution to
  65 //    this would be to handle Alt-<mnemonic> ourselves
  66 // b) the problems with setting radiobox colours under Win98/2K were reported
  67 //    but I couldn't reproduce it so I have no idea about what causes it
  68 //
  69 // the problems with setting this to 0:
  70 // a) the tooltips are not shown for the radiobox - possible solution: make
  71 //    TTM_WINDOWFROMPOS handling code in msw/tooltip.cpp work (easier said than
  72 //    done because I don't know why it doesn't work)
  73 #define RADIOBTN_PARENT_IS_RADIOBOX 0
  74
  75 // ---------------------------------------------------------------------------
  76 // private functions
  77 // ---------------------------------------------------------------------------
  78
  79 // wnd proc for radio buttons
  80 #ifdef __WIN32__
  81 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hWnd,
  82                                            UINT message,
  83                                            WPARAM wParam,
  84                                            LPARAM lParam);
  85
  86 // ---------------------------------------------------------------------------
  87 // global vars
  88 // ---------------------------------------------------------------------------
  89
  90 // the pointer to standard radio button wnd proc
  91 static WXFARPROC s_wndprocRadioBtn = (WXFARPROC)NULL;
  92
  93 #endif // __WIN32__
  94
  95 // ===========================================================================
  96 // implementation
  97 // ===========================================================================
  98
  99 // ---------------------------------------------------------------------------
 100 // wxRadioBox
 101 // ---------------------------------------------------------------------------
 102
 103 int wxRadioBox::GetCount() const
 104 {
 105     return m_noItems;
 106 }
 107
 108 int wxRadioBox::GetColumnCount() const
 109 {
 110     return GetNumHor();
 111 }
 112
 113 int wxRadioBox::GetRowCount() const
 114 {
 115     return GetNumVer();
 116 }
 117
 118 // returns the number of rows
 119 int wxRadioBox::GetNumVer() const
 120 {
 121     if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 122     {
 123         return m_majorDim;
 124     }
 125     else
 126     {
 127         return (m_noItems + m_majorDim - 1)/m_majorDim;
 128     }
 129 }
 130
 131 // returns the number of columns
 132 int wxRadioBox::GetNumHor() const
 133 {
 134     if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 135     {
 136         return (m_noItems + m_majorDim - 1)/m_majorDim;
 137     }
 138     else
 139     {
 140         return m_majorDim;
 141     }
 142 }
 143
 144 bool wxRadioBox::MSWCommand(WXUINT cmd, WXWORD id)
 145 {
 146     if ( cmd == BN_CLICKED )
 147     {
 148         if (id == GetId())
 149             return TRUE;
 150
 151         int selectedButton = -1;
 152
 153         for ( int i = 0; i < m_noItems; i++ )
 154         {
 155             if ( id == wxGetWindowId(m_radioButtons[i]) )
 156             {
 157                 selectedButton = i;
 158
 159                 break;
 160             }
 161         }
 162
 163         if ( selectedButton == -1 )
 164         {
 165             // just ignore it - due to a hack with WM_NCHITTEST handling in our
 166             // wnd proc, we can receive dummy click messages when we click near
 167             // the radiobox edge (this is ugly but Julian wouldn't let me get
 168             // rid of this...)
 169             return FALSE;
 170         }
 171
 172         if ( selectedButton != m_selectedButton )
 173         {
 174             m_selectedButton = selectedButton;
 175
 176             SendNotificationEvent();
 177         }
 178         //else: don't generate events when the selection doesn't change
 179
 180         return TRUE;
 181     }
 182     else
 183         return FALSE;
 184 }
 185
 186 #if WXWIN_COMPATIBILITY
 187 wxRadioBox::wxRadioBox(wxWindow *parent, wxFunction func, const char *title,
 188         int x, int y, int width, int height,
 189         int n, char **choices,
 190         int majorDim, long style, const char *name)
 191 {
 192     wxString *choices2 = new wxString[n];
 193     for ( int i = 0; i < n; i ++) choices2[i] = choices[i];
 194     Create(parent, -1, title, wxPoint(x, y), wxSize(width, height), n, choices2, majorDim, style,
 195             wxDefaultValidator, name);
 196     Callback(func);
 197     delete choices2;
 198 }
 199
 200 #endif // WXWIN_COMPATIBILITY
 201
 202 // Radio box item
 203 wxRadioBox::wxRadioBox()
 204 {
 205     m_selectedButton = -1;
 206     m_noItems = 0;
 207     m_noRowsOrCols = 0;
 208     m_radioButtons = NULL;
 209     m_majorDim = 0;
 210     m_radioWidth = NULL;
 211     m_radioHeight = NULL;
 212 }
 213
 214 bool wxRadioBox::Create(wxWindow *parent,
 215                         wxWindowID id,
 216                         const wxString& title,
 217                         const wxPoint& pos,
 218                         const wxSize& size,
 219                         int n,
 220                         const wxString choices[],
 221                         int majorDim,
 222                         long style,
 223                         const wxValidator& val,
 224                         const wxString& name)
 225 {
 226     // initialize members
 227     m_selectedButton = -1;
 228     m_noItems = 0;
 229
 230     m_majorDim = majorDim == 0 ? n : majorDim;
 231     m_noRowsOrCols = majorDim;
 232
 233     // common initialization
 234     if ( !CreateControl(parent, id, pos, size, style, val, name) )
 235         return FALSE;
 236
 237     // create the static box
 238     if ( !MSWCreateControl(wxT("BUTTON"), BS_GROUPBOX | WS_GROUP,
 239                            pos, size, title, 0) )
 240         return FALSE;
 241
 242     // and now create the buttons
 243     m_noItems = n;
 244 #if RADIOBTN_PARENT_IS_RADIOBOX
 245     HWND hwndParent = GetHwnd();
 246 #else
 247     HWND hwndParent = GetHwndOf(parent);
 248 #endif
 249
 250     // Some radio boxes test consecutive id.
 251     (void)NewControlId();
 252     m_radioButtons = new WXHWND[n];
 253     m_radioWidth = new int[n];
 254     m_radioHeight = new int[n];
 255
 256     WXHFONT hfont = 0;
 257     wxFont& font = GetFont();
 258     if ( font.Ok() )
 259     {
 260         hfont = font.GetResourceHandle();
 261     }
 262
 263     for ( int i = 0; i < n; i++ )
 264     {
 265         m_radioWidth[i] =
 266         m_radioHeight[i] = -1;
 267         long styleBtn = BS_AUTORADIOBUTTON | WS_TABSTOP | WS_CHILD | WS_VISIBLE;
 268         if ( i == 0 && style == 0 )
 269             styleBtn |= WS_GROUP;
 270
 271         long newId = NewControlId();
 272
 273         HWND hwndBtn = ::CreateWindow(_T("BUTTON"),
 274                                       choices[i],
 275                                       styleBtn,
 276                                       0, 0, 0, 0,   // will be set in SetSize()
 277                                       hwndParent,
 278                                       (HMENU)newId,
 279                                       wxGetInstance(),
 280                                       NULL);
 281
 282         if ( !hwndBtn )
 283         {
 284             wxLogLastError(wxT("CreateWindow(radio btn)"));
 285
 286             return FALSE;
 287         }
 288
 289         m_radioButtons[i] = (WXHWND)hwndBtn;
 290
 291         SubclassRadioButton((WXHWND)hwndBtn);
 292
 293         if ( hfont )
 294         {
 295             ::SendMessage(hwndBtn, WM_SETFONT, (WPARAM)hfont, 0L);
 296         }
 297
 298         m_subControls.Add(newId);
 299     }
 300
 301     // Create a dummy radio control to end the group.
 302     (void)::CreateWindow(_T("BUTTON"),
 303                          _T(""),
 304                          WS_GROUP | BS_AUTORADIOBUTTON | WS_CHILD,
 305                          0, 0, 0, 0, hwndParent,
 306                          (HMENU)NewControlId(), wxGetInstance(), NULL);
 307
 308     SetSelection(0);
 309
 310     SetSize(pos.x, pos.y, size.x, size.y);
 311
 312     return TRUE;
 313 }
 314
 315 wxRadioBox::~wxRadioBox()
 316 {
 317     m_isBeingDeleted = TRUE;
 318
 319     if (m_radioButtons)
 320     {
 321         int i;
 322         for (i = 0; i < m_noItems; i++)
 323             ::DestroyWindow((HWND)m_radioButtons[i]);
 324         delete[] m_radioButtons;
 325     }
 326
 327     if (m_radioWidth)
 328         delete[] m_radioWidth;
 329     if (m_radioHeight)
 330         delete[] m_radioHeight;
 331
 332 }
 333
 334 void wxRadioBox::SetString(int item, const wxString& label)
 335 {
 336     wxCHECK_RET( item >= 0 && item < m_noItems, wxT("invalid radiobox index") );
 337
 338     m_radioWidth[item] = m_radioHeight[item] = -1;
 339     SetWindowText((HWND)m_radioButtons[item], label.c_str());
 340 }
 341
 342 void wxRadioBox::SetSelection(int N)
 343 {
 344     wxCHECK_RET( (N >= 0) && (N < m_noItems), wxT("invalid radiobox index") );
 345
 346     // Following necessary for Win32s, because Win32s translate BM_SETCHECK
 347     if (m_selectedButton >= 0 && m_selectedButton < m_noItems)
 348         ::SendMessage((HWND) m_radioButtons[m_selectedButton], BM_SETCHECK, 0, 0L);
 349
 350     ::SendMessage((HWND)m_radioButtons[N], BM_SETCHECK, 1, 0L);
 351     ::SetFocus((HWND)m_radioButtons[N]);
 352
 353     m_selectedButton = N;
 354 }
 355
 356 // Get single selection, for single choice list items
 357 int wxRadioBox::GetSelection() const
 358 {
 359     return m_selectedButton;
 360 }
 361
 362 // Find string for position
 363 wxString wxRadioBox::GetString(int item) const
 364 {
 365     wxCHECK_MSG( item >= 0 && item < m_noItems, wxEmptyString,
 366                  wxT("invalid radiobox index") );
 367
 368     return wxGetWindowText(m_radioButtons[item]);
 369 }
 370
 371 // ----------------------------------------------------------------------------
 372 // size calculations
 373 // ----------------------------------------------------------------------------
 374
 375 wxSize wxRadioBox::GetMaxButtonSize() const
 376 {
 377     // calculate the max button size
 378     int widthMax = 0,
 379         heightMax = 0;
 380     for ( int i = 0 ; i < m_noItems; i++ )
 381     {
 382         int width, height;
 383         if ( m_radioWidth[i] < 0 )
 384         {
 385             GetTextExtent(wxGetWindowText(m_radioButtons[i]), &width, &height);
 386
 387             // adjust the size to take into account the radio box itself
 388             // FIXME this is totally bogus!
 389             width += RADIO_SIZE;
 390             height *= 3;
 391             height /= 2;
 392         }
 393         else
 394         {
 395             width = m_radioWidth[i];
 396             height = m_radioHeight[i];
 397         }
 398
 399         if ( widthMax < width )
 400             widthMax = width;
 401         if ( heightMax < height )
 402             heightMax = height;
 403     }
 404
 405     return wxSize(widthMax, heightMax);
 406 }
 407
 408 wxSize wxRadioBox::GetTotalButtonSize(const wxSize& sizeBtn) const
 409 {
 410     // the radiobox should be big enough for its buttons
 411     int cx1, cy1;
 412     wxGetCharSize(m_hWnd, &cx1, &cy1, &GetFont());
 413
 414     int extraHeight = cy1;
 415
 416 #if defined(CTL3D) && !CTL3D
 417     // Requires a bigger group box in plain Windows
 418     extraHeight *= 3;
 419     extraHeight /= 2;
 420 #endif
 421
 422     int height = GetNumVer() * sizeBtn.y + cy1/2 + extraHeight;
 423     int width  = GetNumHor() * (sizeBtn.x + cx1) + cx1;
 424
 425     // and also wide enough for its label
 426     int widthLabel;
 427     GetTextExtent(GetTitle(), &widthLabel, NULL);
 428     widthLabel += RADIO_SIZE; // FIXME this is bogus too
 429     if ( widthLabel > width )
 430         width = widthLabel;
 431
 432     return wxSize(width, height);
 433 }
 434
 435 wxSize wxRadioBox::DoGetBestSize() const
 436 {
 437     return GetTotalButtonSize(GetMaxButtonSize());
 438 }
 439
 440 // Restored old code.
 441 void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 442 {
 443     int currentX, currentY;
 444     GetPosition(&currentX, &currentY);
 445     int widthOld, heightOld;
 446     GetSize(&widthOld, &heightOld);
 447
 448     int xx = x;
 449     int yy = y;
 450
 451     if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 452         xx = currentX;
 453     if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 454         yy = currentY;
 455
 456 #if RADIOBTN_PARENT_IS_RADIOBOX
 457     int y_offset = 0;
 458     int x_offset = 0;
 459 #else
 460     int y_offset = yy;
 461     int x_offset = xx;
 462 #endif
 463
 464     int cx1, cy1;
 465     wxGetCharSize(m_hWnd, &cx1, &cy1, & GetFont());
 466
 467     // Attempt to have a look coherent with other platforms: We compute the
 468     // biggest toggle dim, then we align all items according this value.
 469     wxSize maxSize = GetMaxButtonSize();
 470     int maxWidth = maxSize.x,
 471         maxHeight = maxSize.y;
 472
 473     wxSize totSize = GetTotalButtonSize(maxSize);
 474     int totWidth = totSize.x,
 475         totHeight = totSize.y;
 476
 477     // only change our width/height if asked for
 478     if ( width == -1 )
 479     {
 480         if ( sizeFlags & wxSIZE_AUTO_WIDTH )
 481             width = totWidth;
 482         else
 483             width = widthOld;
 484     }
 485
 486     if ( height == -1 )
 487     {
 488         if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
 489             height = totHeight;
 490         else
 491             height = heightOld;
 492     }
 493
 494     ::MoveWindow(GetHwnd(), xx, yy, width, height, TRUE);
 495
 496     // Now position all the buttons: the current button will be put at
 497     // wxPoint(x_offset, y_offset) and the new row/column will start at
 498     // startX/startY. The size of all buttons will be the same wxSize(maxWidth,
 499     // maxHeight) except for the buttons in the last column which should extend
 500     // to the right border of radiobox and thus can be wider than this.
 501
 502     // Also, remember that wxRA_SPECIFY_COLS means that we arrange buttons in
 503     // left to right order and m_majorDim is the number of columns while
 504     // wxRA_SPECIFY_ROWS means that the buttons are arranged top to bottom and
 505     // m_majorDim is the number of rows.
 506
 507     x_offset += cx1;
 508     y_offset += cy1;
 509
 510 #if defined(CTL3D) && (!CTL3D)
 511     y_offset += (int)(cy1/2); // Fudge factor since buttons overlapped label
 512     // JACS 2/12/93. CTL3D draws group label quite high.
 513 #endif
 514
 515     int startX = x_offset;
 516     int startY = y_offset;
 517
 518     for ( int i = 0; i < m_noItems; i++ )
 519     {
 520         // the last button in the row may be wider than the other ones as the
 521         // radiobox may be wider than the sum of the button widths (as it
 522         // happens, for example, when the radiobox label is very long)
 523         bool isLastInTheRow;
 524         if ( m_windowStyle & wxRA_SPECIFY_COLS )
 525         {
 526             // item is the last in its row if it is a multiple of the number of
 527             // columns or if it is just the last item
 528             int n = i + 1;
 529             isLastInTheRow = ((n % m_majorDim) == 0) || (n == m_noItems);
 530         }
 531         else // wxRA_SPECIFY_ROWS
 532         {
 533             // item is the last in the row if it is in the last columns
 534             isLastInTheRow = i >= (m_noItems/m_majorDim)*m_majorDim;
 535         }
 536
 537         // is this the start of new row/column?
 538         if ( i && (i % m_majorDim == 0) )
 539         {
 540             if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 541             {
 542                 // start of new column
 543                 y_offset = startY;
 544                 x_offset += maxWidth + cx1;
 545             }
 546             else // start of new row
 547             {
 548                 x_offset = startX;
 549                 y_offset += maxHeight;
 550                 if (m_radioWidth[0]>0)
 551                     y_offset += cy1/2;
 552             }
 553         }
 554
 555         int widthBtn;
 556         if ( isLastInTheRow )
 557         {
 558             // make the button go to the end of radio box
 559             widthBtn = startX + width - x_offset - 2*cx1;
 560             if ( widthBtn < maxWidth )
 561                 widthBtn = maxWidth;
 562         }
 563         else
 564         {
 565             // normal button, always of the same size
 566             widthBtn = maxWidth;
 567         }
 568
 569         // VZ: make all buttons of the same, maximal size - like this they
 570         //     cover the radiobox entirely and the radiobox tooltips are always
 571         //     shown (otherwise they are not when the mouse pointer is in the
 572         //     radiobox part not belonging to any radiobutton)
 573         ::MoveWindow((HWND)m_radioButtons[i],
 574                      x_offset, y_offset, widthBtn, maxHeight,
 575                      TRUE);
 576
 577         // where do we put the next button?
 578         if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 579         {
 580             // below this one
 581             y_offset += maxHeight;
 582             if (m_radioWidth[0]>0)
 583                 y_offset += cy1/2;
 584         }
 585         else
 586         {
 587             // to the right of this one
 588             x_offset += widthBtn + cx1;
 589         }
 590     }
 591 }
 592
 593 void wxRadioBox::GetSize(int *width, int *height) const
 594 {
 595     RECT rect;
 596     rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
 597
 598     if (m_hWnd)
 599         wxFindMaxSize(m_hWnd, &rect);
 600
 601     int i;
 602     for (i = 0; i < m_noItems; i++)
 603         wxFindMaxSize(m_radioButtons[i], &rect);
 604
 605     *width = rect.right - rect.left;
 606     *height = rect.bottom - rect.top;
 607 }
 608
 609 void wxRadioBox::GetPosition(int *x, int *y) const
 610 {
 611     wxWindow *parent = GetParent();
 612     RECT rect = { -1, -1, -1, -1 };
 613
 614     int i;
 615     for (i = 0; i < m_noItems; i++)
 616         wxFindMaxSize(m_radioButtons[i], &rect);
 617
 618     if (m_hWnd)
 619         wxFindMaxSize(m_hWnd, &rect);
 620
 621     // Since we now have the absolute screen coords, if there's a parent we
 622     // must subtract its top left corner
 623     POINT point;
 624     point.x = rect.left;
 625     point.y = rect.top;
 626     if (parent)
 627     {
 628         ::ScreenToClient((HWND) parent->GetHWND(), &point);
 629     }
 630
 631     // We may be faking the client origin. So a window that's really at (0, 30)
 632     // may appear (to wxWin apps) to be at (0, 0).
 633     if (GetParent())
 634     {
 635         wxPoint pt(GetParent()->GetClientAreaOrigin());
 636         point.x -= pt.x;
 637         point.y -= pt.y;
 638     }
 639
 640     *x = point.x;
 641     *y = point.y;
 642 }
 643
 644 void wxRadioBox::SetFocus()
 645 {
 646     if (m_noItems > 0)
 647     {
 648         if (m_selectedButton == -1)
 649             ::SetFocus((HWND) m_radioButtons[0]);
 650         else
 651             ::SetFocus((HWND) m_radioButtons[m_selectedButton]);
 652     }
 653
 654 }
 655
 656 bool wxRadioBox::Show(bool show)
 657 {
 658     if ( !wxControl::Show(show) )
 659         return FALSE;
 660
 661     int nCmdShow = show ? SW_SHOW : SW_HIDE;
 662     for ( int i = 0; i < m_noItems; i++ )
 663     {
 664         ::ShowWindow((HWND)m_radioButtons[i], nCmdShow);
 665     }
 666
 667     return TRUE;
 668 }
 669
 670 // Enable a specific button
 671 void wxRadioBox::Enable(int item, bool enable)
 672 {
 673     wxCHECK_RET( item >= 0 && item < m_noItems,
 674                  wxT("invalid item in wxRadioBox::Enable()") );
 675
 676     ::EnableWindow((HWND) m_radioButtons[item], enable);
 677 }
 678
 679 // Enable all controls
 680 bool wxRadioBox::Enable(bool enable)
 681 {
 682     if ( !wxControl::Enable(enable) )
 683         return FALSE;
 684
 685     for (int i = 0; i < m_noItems; i++)
 686         ::EnableWindow((HWND) m_radioButtons[i], enable);
 687
 688     return TRUE;
 689 }
 690
 691 // Show a specific button
 692 void wxRadioBox::Show(int item, bool show)
 693 {
 694     wxCHECK_RET( item >= 0 && item < m_noItems,
 695                  wxT("invalid item in wxRadioBox::Show()") );
 696
 697     ::ShowWindow((HWND)m_radioButtons[item], show ? SW_SHOW : SW_HIDE);
 698 }
 699
 700 bool wxRadioBox::ContainsHWND(WXHWND hWnd) const
 701 {
 702     size_t count = GetCount();
 703     for ( size_t i = 0; i < count; i++ )
 704     {
 705         if ( GetRadioButtons()[i] == hWnd )
 706             return TRUE;
 707     }
 708
 709     return FALSE;
 710 }
 711
 712 void wxRadioBox::Command(wxCommandEvent & event)
 713 {
 714     SetSelection (event.m_commandInt);
 715     ProcessCommand (event);
 716 }
 717
 718 // NB: if this code is changed, wxGetWindowForHWND() which relies on having the
 719 //     radiobox pointer in GWL_USERDATA for radio buttons must be updated too!
 720 void wxRadioBox::SubclassRadioButton(WXHWND hWndBtn)
 721 {
 722     // No GWL_USERDATA in Win16, so omit this subclassing.
 723 #ifdef __WIN32__
 724     HWND hwndBtn = (HWND)hWndBtn;
 725
 726     if ( !s_wndprocRadioBtn )
 727         s_wndprocRadioBtn = (WXFARPROC)::GetWindowLong(hwndBtn, GWL_WNDPROC);
 728
 729     ::SetWindowLong(hwndBtn, GWL_WNDPROC, (long)wxRadioBtnWndProc);
 730     ::SetWindowLong(hwndBtn, GWL_USERDATA, (long)this);
 731 #endif // __WIN32__
 732 }
 733
 734 void wxRadioBox::SendNotificationEvent()
 735 {
 736     wxCommandEvent event(wxEVT_COMMAND_RADIOBOX_SELECTED, m_windowId);
 737     event.SetInt( m_selectedButton );
 738     event.SetString( GetString(m_selectedButton) );
 739     event.SetEventObject( this );
 740     ProcessCommand(event);
 741 }
 742
 743 bool wxRadioBox::SetFont(const wxFont& font)
 744 {
 745     if ( !wxControl::SetFont(font) )
 746     {
 747         // nothing to do
 748         return FALSE;
 749     }
 750
 751     // also set the font of our radio buttons
 752     WXHFONT hfont = wxFont(font).GetResourceHandle();
 753     for ( int n = 0; n < m_noItems; n++ )
 754     {
 755         HWND hwndBtn = (HWND)m_radioButtons[n];
 756         ::SendMessage(hwndBtn, WM_SETFONT, (WPARAM)hfont, 0L);
 757
 758         // otherwise the buttons are not redrawn correctly
 759         ::InvalidateRect(hwndBtn, NULL, FALSE /* don't erase bg */);
 760     }
 761
 762     return TRUE;
 763 }
 764
 765 // ----------------------------------------------------------------------------
 766 // our window proc
 767 // ----------------------------------------------------------------------------
 768
 769 long wxRadioBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 770 {
 771     switch ( nMsg )
 772     {
 773 #ifdef __WIN32__
 774         case WM_CTLCOLORSTATIC:
 775             // set the colour of the radio buttons to be the same as ours
 776             {
 777                 HDC hdc = (HDC)wParam;
 778
 779                 const wxColour& colBack = GetBackgroundColour();
 780                 ::SetBkColor(hdc, wxColourToRGB(colBack));
 781                 ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));
 782
 783                 wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBack, wxSOLID);
 784
 785                 return (WXHBRUSH)brush->GetResourceHandle();
 786             }
 787 #endif // Win32
 788
 789         // This is required for the radiobox to be sensitive to mouse input,
 790         // e.g. for Dialog Editor.
 791         case WM_NCHITTEST:
 792             {
 793                 int xPos = LOWORD(lParam);  // horizontal position of cursor
 794                 int yPos = HIWORD(lParam);  // vertical position of cursor
 795
 796                 ScreenToClient(&xPos, &yPos);
 797
 798                 // Make sure you can drag by the top of the groupbox, but let
 799                 // other (enclosed) controls get mouse events also
 800                 if (yPos < 10)
 801                     return (long)HTCLIENT;
 802             }
 803             break;
 804     }
 805
 806     return wxControl::MSWWindowProc(nMsg, wParam, lParam);
 807 }
 808
 809 WXHBRUSH wxRadioBox::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSED(nCtlColor),
 810 #if wxUSE_CTL3D
 811                                WXUINT message,
 812                                WXWPARAM wParam,
 813                                WXLPARAM lParam
 814 #else
 815                                WXUINT WXUNUSED(message),
 816                                WXWPARAM WXUNUSED(wParam),
 817                                WXLPARAM WXUNUSED(lParam)
 818 #endif
 819     )
 820 {
 821 #if wxUSE_CTL3D
 822     if ( m_useCtl3D )
 823     {
 824         HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
 825         return (WXHBRUSH) hbrush;
 826     }
 827 #endif // wxUSE_CTL3D
 828
 829     HDC hdc = (HDC)pDC;
 830     if (GetParent()->GetTransparentBackground())
 831         SetBkMode(hdc, TRANSPARENT);
 832     else
 833         SetBkMode(hdc, OPAQUE);
 834
 835     wxColour colBack = GetBackgroundColour();
 836
 837     if (!IsEnabled())
 838         colBack = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
 839
 840     ::SetBkColor(hdc, wxColourToRGB(colBack));
 841     ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));
 842
 843     wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBack, wxSOLID);
 844
 845     return (WXHBRUSH)brush->GetResourceHandle();
 846 }
 847
 848
 849 // ---------------------------------------------------------------------------
 850 // window proc for radio buttons
 851 // ---------------------------------------------------------------------------
 852
 853 #ifdef __WIN32__
 854
 855 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hwnd,
 856                                            UINT message,
 857                                            WPARAM wParam,
 858                                            LPARAM lParam)
 859 {
 860     switch ( message )
 861     {
 862         case WM_GETDLGCODE:
 863             // we must tell IsDialogMessage()/our kbd processing code that we
 864             // want to process arrows ourselves because neither of them is
 865             // smart enough to handle arrows properly for us
 866             {
 867                 long lDlgCode = ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd,
 868                                                  message, wParam, lParam);
 869
 870                 return lDlgCode | DLGC_WANTARROWS;
 871             }
 872
 873 #if wxUSE_TOOLTIPS
 874         case WM_NOTIFY:
 875             {
 876                 NMHDR* hdr = (NMHDR *)lParam;
 877                 if ( (int)hdr->code == TTN_NEEDTEXT )
 878                 {
 879                     wxRadioBox *radiobox = (wxRadioBox *)
 880                         ::GetWindowLong(hwnd, GWL_USERDATA);
 881
 882                     wxCHECK_MSG( radiobox, 0,
 883                                  wxT("radio button without radio box?") );
 884
 885                     wxToolTip *tooltip = radiobox->GetToolTip();
 886                     if ( tooltip )
 887                     {
 888                         TOOLTIPTEXT *ttt = (TOOLTIPTEXT *)lParam;
 889                         ttt->lpszText = (wxChar *)tooltip->GetTip().c_str();
 890                     }
 891
 892                     // processed
 893                     return 0;
 894                 }
 895             }
 896             break;
 897 #endif // wxUSE_TOOLTIPS
 898
 899         case WM_KEYDOWN:
 900             {
 901                 wxRadioBox *radiobox = (wxRadioBox *)
 902                     ::GetWindowLong(hwnd, GWL_USERDATA);
 903
 904                 wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
 905
 906                 bool processed = TRUE;
 907
 908                 wxDirection dir;
 909                 switch ( wParam )
 910                 {
 911                     case VK_UP:
 912                         dir = wxUP;
 913                         break;
 914
 915                     case VK_LEFT:
 916                         dir = wxLEFT;
 917                         break;
 918
 919                     case VK_DOWN:
 920                         dir = wxDOWN;
 921                         break;
 922
 923                     case VK_RIGHT:
 924                         dir = wxRIGHT;
 925                         break;
 926
 927                     default:
 928                         processed = FALSE;
 929
 930                         // just to suppress the compiler warning
 931                         dir = wxALL;
 932                 }
 933
 934                 if ( processed )
 935                 {
 936                     int selOld = radiobox->GetSelection();
 937                     int selNew = radiobox->GetNextItem
 938                                  (
 939                                   selOld,
 940                                   dir,
 941                                   radiobox->GetWindowStyle()
 942                                  );
 943
 944                     if ( selNew != selOld )
 945                     {
 946                         radiobox->SetSelection(selNew);
 947
 948                         // emulate the button click
 949                         radiobox->SendNotificationEvent();
 950
 951                         return 0;
 952                     }
 953                 }
 954             }
 955             break;
 956
 957 #ifdef __WIN32__
 958         case WM_HELP:
 959             {
 960                 wxRadioBox *radiobox = (wxRadioBox *)
 961                         ::GetWindowLong(hwnd, GWL_USERDATA);
 962
 963                 wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
 964
 965                 bool processed = TRUE;
 966
 967                 HELPINFO* info = (HELPINFO*) lParam;
 968                 // Don't yet process menu help events, just windows
 969                 if (info->iContextType == HELPINFO_WINDOW)
 970                 {
 971                     wxWindow* subjectOfHelp = radiobox;
 972                     bool eventProcessed = FALSE;
 973                     while (subjectOfHelp && !eventProcessed)
 974                     {
 975                         wxHelpEvent helpEvent(wxEVT_HELP, subjectOfHelp->GetId(), wxPoint(info->MousePos.x, info->MousePos.y) ) ; // info->iCtrlId);
 976                         helpEvent.SetEventObject(radiobox);
 977                         eventProcessed = radiobox->GetEventHandler()->ProcessEvent(helpEvent);
 978
 979                         // Go up the window hierarchy until the event is handled (or not)
 980                         subjectOfHelp = subjectOfHelp->GetParent();
 981                     }
 982                     processed = eventProcessed;
 983                 }
 984                 else if (info->iContextType == HELPINFO_MENUITEM)
 985                 {
 986                     wxHelpEvent helpEvent(wxEVT_HELP, info->iCtrlId) ;
 987                     helpEvent.SetEventObject(radiobox);
 988                     processed = radiobox->GetEventHandler()->ProcessEvent(helpEvent);
 989                 }
 990                 else processed = FALSE;
 991
 992                 if (processed)
 993                     return 0;
 994
 995                 break;
 996             }
 997 #endif // __WIN32__
 998     }
 999
1000     return ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd, message, wParam, lParam);
1001 }
1002
1003 #endif // __WIN32__
1004
1005 #endif // wxUSE_RADIOBOX