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 #ifndef WX_PRECOMP
  32     #include "wx/bitmap.h"
  33     #include "wx/brush.h"
  34     #include "wx/radiobox.h"
  35     #include "wx/settings.h"
  36     #include "wx/log.h"
  37 #endif
  38
  39 #include "wx/msw/private.h"
  40
  41 #if wxUSE_TOOLTIPS
  42     #ifndef __GNUWIN32_OLD__
  43         #include <commctrl.h>
  44     #endif
  45     #include "wx/tooltip.h"
  46 #endif // wxUSE_TOOLTIPS
  47
  48 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox, wxControl)
  49
  50 // there are two possible ways to create the radio buttons: either as children
  51 // of the radiobox or as siblings of it - allow playing with both variants for
  52 // now, eventually we will choose the best one for our purposes
  53 //
  54 // two main problems are the keyboard navigation inside the radiobox (arrows
  55 // should switch between buttons, not pass focus to the next control) and the
  56 // tooltips - a tooltip is associated with the radiobox itself, not the
  57 // children...
  58 //
  59 // the problems with setting this to 1:
  60 // a) Alt-<mnemonic of radiobox> isn't handled properly by IsDialogMessage()
  61 //    because it sets focus to the next control accepting it which is not a
  62 //    radio button but a radiobox sibling in this case - the only solution to
  63 //    this would be to handle Alt-<mnemonic> ourselves
  64 // b) the problems with setting radiobox colours under Win98/2K were reported
  65 //    but I couldn't reproduce it so I have no idea about what causes it
  66 //
  67 // the problems with setting this to 0:
  68 // a) the tooltips are not shown for the radiobox - possible solution: make
  69 //    TTM_WINDOWFROMPOS handling code in msw/tooltip.cpp work (easier said than
  70 //    done because I don't know why it doesn't work)
  71 #define RADIOBTN_PARENT_IS_RADIOBOX 0
  72
  73 // ---------------------------------------------------------------------------
  74 // private functions
  75 // ---------------------------------------------------------------------------
  76
  77 // wnd proc for radio buttons
  78 #ifdef __WIN32__
  79 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hWnd,
  80                                            UINT message,
  81                                            WPARAM wParam,
  82                                            LPARAM lParam);
  83
  84 // ---------------------------------------------------------------------------
  85 // global vars
  86 // ---------------------------------------------------------------------------
  87
  88 // the pointer to standard radio button wnd proc
  89 static WXFARPROC s_wndprocRadioBtn = (WXFARPROC)NULL;
  90
  91 #endif // __WIN32__
  92
  93 // ===========================================================================
  94 // implementation
  95 // ===========================================================================
  96
  97 // ---------------------------------------------------------------------------
  98 // wxRadioBox
  99 // ---------------------------------------------------------------------------
 100
 101 // returns the number of rows
 102 int wxRadioBox::GetNumVer() const
 103 {
 104     if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 105     {
 106         return m_majorDim;
 107     }
 108     else
 109     {
 110         return (m_noItems + m_majorDim - 1)/m_majorDim;
 111     }
 112 }
 113
 114 // returns the number of columns
 115 int wxRadioBox::GetNumHor() const
 116 {
 117     if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 118     {
 119         return (m_noItems + m_majorDim - 1)/m_majorDim;
 120     }
 121     else
 122     {
 123         return m_majorDim;
 124     }
 125 }
 126
 127 bool wxRadioBox::MSWCommand(WXUINT cmd, WXWORD id)
 128 {
 129     if ( cmd == BN_CLICKED )
 130     {
 131         if (id == GetId())
 132             return TRUE;
 133
 134         int selectedButton = -1;
 135
 136         for ( int i = 0; i < m_noItems; i++ )
 137         {
 138             if ( id == wxGetWindowId(m_radioButtons[i]) )
 139             {
 140                 selectedButton = i;
 141
 142                 break;
 143             }
 144         }
 145
 146         if ( selectedButton == -1 )
 147         {
 148             // just ignore it - due to a hack with WM_NCHITTEST handling in our
 149             // wnd proc, we can receive dummy click messages when we click near
 150             // the radiobox edge (this is ugly but Julian wouldn't let me get
 151             // rid of this...)
 152             return FALSE;
 153         }
 154
 155         if ( selectedButton != m_selectedButton )
 156         {
 157             m_selectedButton = selectedButton;
 158
 159             SendNotificationEvent();
 160         }
 161         //else: don't generate events when the selection doesn't change
 162
 163         return TRUE;
 164     }
 165     else
 166         return FALSE;
 167 }
 168
 169 #if WXWIN_COMPATIBILITY
 170 wxRadioBox::wxRadioBox(wxWindow *parent, wxFunction func, const char *title,
 171         int x, int y, int width, int height,
 172         int n, char **choices,
 173         int majorDim, long style, const char *name)
 174 {
 175     wxString *choices2 = new wxString[n];
 176     for ( int i = 0; i < n; i ++) choices2[i] = choices[i];
 177     Create(parent, -1, title, wxPoint(x, y), wxSize(width, height), n, choices2, majorDim, style,
 178             wxDefaultValidator, name);
 179     Callback(func);
 180     delete choices2;
 181 }
 182
 183 #endif // WXWIN_COMPATIBILITY
 184
 185 // Radio box item
 186 wxRadioBox::wxRadioBox()
 187 {
 188     m_selectedButton = -1;
 189     m_noItems = 0;
 190     m_noRowsOrCols = 0;
 191     m_radioButtons = NULL;
 192     m_majorDim = 0;
 193     m_radioWidth = NULL;
 194     m_radioHeight = NULL;
 195 }
 196
 197 bool wxRadioBox::Create(wxWindow *parent,
 198                         wxWindowID id,
 199                         const wxString& title,
 200                         const wxPoint& pos,
 201                         const wxSize& size,
 202                         int n,
 203                         const wxString choices[],
 204                         int majorDim,
 205                         long style,
 206                         const wxValidator& val,
 207                         const wxString& name)
 208 {
 209     // initialize members
 210     m_selectedButton = -1;
 211     m_noItems = 0;
 212
 213     m_majorDim = majorDim == 0 ? n : majorDim;
 214     m_noRowsOrCols = majorDim;
 215
 216     // common initialization
 217     if ( !CreateControl(parent, id, pos, size, style, val, name) )
 218         return FALSE;
 219
 220     // create the static box
 221     if ( !MSWCreateControl(wxT("BUTTON"), BS_GROUPBOX | WS_GROUP,
 222                            pos, size, title, 0) )
 223         return FALSE;
 224
 225     // and now create the buttons
 226     m_noItems = n;
 227 #if RADIOBTN_PARENT_IS_RADIOBOX
 228     HWND hwndParent = GetHwnd();
 229 #else
 230     HWND hwndParent = GetHwndOf(parent);
 231 #endif
 232
 233     // Some radio boxes test consecutive id.
 234     (void)NewControlId();
 235     m_radioButtons = new WXHWND[n];
 236     m_radioWidth = new int[n];
 237     m_radioHeight = new int[n];
 238
 239     WXHFONT hfont = 0;
 240     wxFont& font = GetFont();
 241     if ( font.Ok() )
 242     {
 243         hfont = font.GetResourceHandle();
 244     }
 245
 246     for ( int i = 0; i < n; i++ )
 247     {
 248         m_radioWidth[i] =
 249         m_radioHeight[i] = -1;
 250         long styleBtn = BS_AUTORADIOBUTTON | WS_TABSTOP | WS_CHILD | WS_VISIBLE;
 251         if ( i == 0 && style == 0 )
 252             styleBtn |= WS_GROUP;
 253
 254         long newId = NewControlId();
 255
 256         HWND hwndBtn = ::CreateWindow(_T("BUTTON"),
 257                                       choices[i],
 258                                       styleBtn,
 259                                       0, 0, 0, 0,   // will be set in SetSize()
 260                                       hwndParent,
 261                                       (HMENU)newId,
 262                                       wxGetInstance(),
 263                                       NULL);
 264
 265         if ( !hwndBtn )
 266         {
 267             wxLogLastError(wxT("CreateWindow(radio btn)"));
 268
 269             return FALSE;
 270         }
 271
 272         m_radioButtons[i] = (WXHWND)hwndBtn;
 273
 274         SubclassRadioButton((WXHWND)hwndBtn);
 275
 276         if ( hfont )
 277         {
 278             ::SendMessage(hwndBtn, WM_SETFONT, (WPARAM)hfont, 0L);
 279         }
 280
 281         m_subControls.Add(newId);
 282     }
 283
 284     // Create a dummy radio control to end the group.
 285     (void)::CreateWindow(_T("BUTTON"),
 286                          _T(""),
 287                          WS_GROUP | BS_AUTORADIOBUTTON | WS_CHILD,
 288                          0, 0, 0, 0, hwndParent,
 289                          (HMENU)NewControlId(), wxGetInstance(), NULL);
 290
 291     SetSelection(0);
 292
 293     SetSize(pos.x, pos.y, size.x, size.y);
 294
 295     return TRUE;
 296 }
 297
 298 wxRadioBox::~wxRadioBox()
 299 {
 300     m_isBeingDeleted = TRUE;
 301
 302     if (m_radioButtons)
 303     {
 304         int i;
 305         for (i = 0; i < m_noItems; i++)
 306             ::DestroyWindow((HWND)m_radioButtons[i]);
 307         delete[] m_radioButtons;
 308     }
 309
 310     if (m_radioWidth)
 311         delete[] m_radioWidth;
 312     if (m_radioHeight)
 313         delete[] m_radioHeight;
 314
 315 }
 316
 317 wxString wxRadioBox::GetLabel(int item) const
 318 {
 319     wxCHECK_MSG( item >= 0 && item < m_noItems, wxT(""), wxT("invalid radiobox index") );
 320
 321     return wxGetWindowText(m_radioButtons[item]);
 322 }
 323
 324 void wxRadioBox::SetLabel(int item, const wxString& label)
 325 {
 326     wxCHECK_RET( item >= 0 && item < m_noItems, wxT("invalid radiobox index") );
 327
 328     m_radioWidth[item] = m_radioHeight[item] = -1;
 329     SetWindowText((HWND)m_radioButtons[item], label.c_str());
 330 }
 331
 332 void wxRadioBox::SetLabel(int WXUNUSED(item), wxBitmap *WXUNUSED(bitmap))
 333 {
 334     /*
 335        m_radioWidth[item] = bitmap->GetWidth() + FB_MARGIN;
 336        m_radioHeight[item] = bitmap->GetHeight() + FB_MARGIN;
 337      */
 338     wxFAIL_MSG(wxT("not implemented"));
 339 }
 340
 341 int wxRadioBox::FindString(const wxString& s) const
 342 {
 343     for (int i = 0; i < m_noItems; i++)
 344     {
 345         if ( s == wxGetWindowText(m_radioButtons[i]) )
 346             return i;
 347     }
 348
 349     return wxNOT_FOUND;
 350 }
 351
 352 void wxRadioBox::SetSelection(int N)
 353 {
 354     wxCHECK_RET( (N >= 0) && (N < m_noItems), wxT("invalid radiobox index") );
 355
 356     // Following necessary for Win32s, because Win32s translate BM_SETCHECK
 357     if (m_selectedButton >= 0 && m_selectedButton < m_noItems)
 358         ::SendMessage((HWND) m_radioButtons[m_selectedButton], BM_SETCHECK, 0, 0L);
 359
 360     ::SendMessage((HWND)m_radioButtons[N], BM_SETCHECK, 1, 0L);
 361     ::SetFocus((HWND)m_radioButtons[N]);
 362
 363     m_selectedButton = N;
 364 }
 365
 366 // Get single selection, for single choice list items
 367 int wxRadioBox::GetSelection() const
 368 {
 369     return m_selectedButton;
 370 }
 371
 372 // Find string for position
 373 wxString wxRadioBox::GetString(int N) const
 374 {
 375     return wxGetWindowText(m_radioButtons[N]);
 376 }
 377
 378 // ----------------------------------------------------------------------------
 379 // size calculations
 380 // ----------------------------------------------------------------------------
 381
 382 wxSize wxRadioBox::GetMaxButtonSize() const
 383 {
 384     // calculate the max button size
 385     int widthMax = 0,
 386         heightMax = 0;
 387     for ( int i = 0 ; i < m_noItems; i++ )
 388     {
 389         int width, height;
 390         if ( m_radioWidth[i] < 0 )
 391         {
 392             GetTextExtent(wxGetWindowText(m_radioButtons[i]), &width, &height);
 393
 394             // adjust the size to take into account the radio box itself
 395             // FIXME this is totally bogus!
 396             width += RADIO_SIZE;
 397             height *= 3;
 398             height /= 2;
 399         }
 400         else
 401         {
 402             width = m_radioWidth[i];
 403             height = m_radioHeight[i];
 404         }
 405
 406         if ( widthMax < width )
 407             widthMax = width;
 408         if ( heightMax < height )
 409             heightMax = height;
 410     }
 411
 412     return wxSize(widthMax, heightMax);
 413 }
 414
 415 wxSize wxRadioBox::GetTotalButtonSize(const wxSize& sizeBtn) const
 416 {
 417     // the radiobox should be big enough for its buttons
 418     int cx1, cy1;
 419     wxGetCharSize(m_hWnd, &cx1, &cy1, &GetFont());
 420
 421     int extraHeight = cy1;
 422
 423 #if defined(CTL3D) && !CTL3D
 424     // Requires a bigger group box in plain Windows
 425     extraHeight *= 3;
 426     extraHeight /= 2;
 427 #endif
 428
 429     int height = GetNumVer() * sizeBtn.y + cy1/2 + extraHeight;
 430     int width  = GetNumHor() * (sizeBtn.x + cx1) + cx1;
 431
 432     // and also wide enough for its label
 433     int widthLabel;
 434     GetTextExtent(GetTitle(), &widthLabel, NULL);
 435     widthLabel += RADIO_SIZE; // FIXME this is bogus too
 436     if ( widthLabel > width )
 437         width = widthLabel;
 438
 439     return wxSize(width, height);
 440 }
 441
 442 wxSize wxRadioBox::DoGetBestSize() const
 443 {
 444     return GetTotalButtonSize(GetMaxButtonSize());
 445 }
 446
 447 // Restored old code.
 448 void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 449 {
 450     int currentX, currentY;
 451     GetPosition(&currentX, &currentY);
 452     int widthOld, heightOld;
 453     GetSize(&widthOld, &heightOld);
 454
 455     int xx = x;
 456     int yy = y;
 457
 458     if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 459         xx = currentX;
 460     if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 461         yy = currentY;
 462
 463 #if RADIOBTN_PARENT_IS_RADIOBOX
 464     int y_offset = 0;
 465     int x_offset = 0;
 466 #else
 467     int y_offset = yy;
 468     int x_offset = xx;
 469 #endif
 470
 471     int cx1, cy1;
 472     wxGetCharSize(m_hWnd, &cx1, &cy1, & GetFont());
 473
 474     // Attempt to have a look coherent with other platforms: We compute the
 475     // biggest toggle dim, then we align all items according this value.
 476     wxSize maxSize = GetMaxButtonSize();
 477     int maxWidth = maxSize.x,
 478         maxHeight = maxSize.y;
 479
 480     wxSize totSize = GetTotalButtonSize(maxSize);
 481     int totWidth = totSize.x,
 482         totHeight = totSize.y;
 483
 484     // only change our width/height if asked for
 485     if ( width == -1 )
 486     {
 487         if ( sizeFlags & wxSIZE_AUTO_WIDTH )
 488             width = totWidth;
 489         else
 490             width = widthOld;
 491     }
 492
 493     if ( height == -1 )
 494     {
 495         if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
 496             height = totHeight;
 497         else
 498             height = heightOld;
 499     }
 500
 501     ::MoveWindow(GetHwnd(), xx, yy, width, height, TRUE);
 502
 503     // Now position all the buttons: the current button will be put at
 504     // wxPoint(x_offset, y_offset) and the new row/column will start at
 505     // startX/startY. The size of all buttons will be the same wxSize(maxWidth,
 506     // maxHeight) except for the buttons in the last column which should extend
 507     // to the right border of radiobox and thus can be wider than this.
 508
 509     // Also, remember that wxRA_SPECIFY_COLS means that we arrange buttons in
 510     // left to right order and m_majorDim is the number of columns while
 511     // wxRA_SPECIFY_ROWS means that the buttons are arranged top to bottom and
 512     // m_majorDim is the number of rows.
 513
 514     x_offset += cx1;
 515     y_offset += cy1;
 516
 517 #if defined(CTL3D) && (!CTL3D)
 518     y_offset += (int)(cy1/2); // Fudge factor since buttons overlapped label
 519     // JACS 2/12/93. CTL3D draws group label quite high.
 520 #endif
 521
 522     int startX = x_offset;
 523     int startY = y_offset;
 524
 525     for ( int i = 0; i < m_noItems; i++ )
 526     {
 527         // the last button in the row may be wider than the other ones as the
 528         // radiobox may be wider than the sum of the button widths (as it
 529         // happens, for example, when the radiobox label is very long)
 530         bool isLastInTheRow;
 531         if ( m_windowStyle & wxRA_SPECIFY_COLS )
 532         {
 533             // item is the last in its row if it is a multiple of the number of
 534             // columns or if it is just the last item
 535             int n = i + 1;
 536             isLastInTheRow = ((n % m_majorDim) == 0) || (n == m_noItems);
 537         }
 538         else // wxRA_SPECIFY_ROWS
 539         {
 540             // item is the last in the row if it is in the last columns
 541             isLastInTheRow = i >= (m_noItems/m_majorDim)*m_majorDim;
 542         }
 543
 544         // is this the start of new row/column?
 545         if ( i && (i % m_majorDim == 0) )
 546         {
 547             if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 548             {
 549                 // start of new column
 550                 y_offset = startY;
 551                 x_offset += maxWidth + cx1;
 552             }
 553             else // start of new row
 554             {
 555                 x_offset = startX;
 556                 y_offset += maxHeight;
 557                 if (m_radioWidth[0]>0)
 558                     y_offset += cy1/2;
 559             }
 560         }
 561
 562         int widthBtn;
 563         if ( isLastInTheRow )
 564         {
 565             // make the button go to the end of radio box
 566             widthBtn = startX + width - x_offset - 2*cx1;
 567             if ( widthBtn < maxWidth )
 568                 widthBtn = maxWidth;
 569         }
 570         else
 571         {
 572             // normal button, always of the same size
 573             widthBtn = maxWidth;
 574         }
 575
 576         // VZ: make all buttons of the same, maximal size - like this they
 577         //     cover the radiobox entirely and the radiobox tooltips are always
 578         //     shown (otherwise they are not when the mouse pointer is in the
 579         //     radiobox part not belonging to any radiobutton)
 580         ::MoveWindow((HWND)m_radioButtons[i],
 581                      x_offset, y_offset, widthBtn, maxHeight,
 582                      TRUE);
 583
 584         // where do we put the next button?
 585         if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 586         {
 587             // below this one
 588             y_offset += maxHeight;
 589             if (m_radioWidth[0]>0)
 590                 y_offset += cy1/2;
 591         }
 592         else
 593         {
 594             // to the right of this one
 595             x_offset += widthBtn + cx1;
 596         }
 597     }
 598 }
 599
 600 void wxRadioBox::GetSize(int *width, int *height) const
 601 {
 602     RECT rect;
 603     rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
 604
 605     if (m_hWnd)
 606         wxFindMaxSize(m_hWnd, &rect);
 607
 608     int i;
 609     for (i = 0; i < m_noItems; i++)
 610         wxFindMaxSize(m_radioButtons[i], &rect);
 611
 612     *width = rect.right - rect.left;
 613     *height = rect.bottom - rect.top;
 614 }
 615
 616 void wxRadioBox::GetPosition(int *x, int *y) const
 617 {
 618     wxWindow *parent = GetParent();
 619     RECT rect = { -1, -1, -1, -1 };
 620
 621     int i;
 622     for (i = 0; i < m_noItems; i++)
 623         wxFindMaxSize(m_radioButtons[i], &rect);
 624
 625     if (m_hWnd)
 626         wxFindMaxSize(m_hWnd, &rect);
 627
 628     // Since we now have the absolute screen coords, if there's a parent we
 629     // must subtract its top left corner
 630     POINT point;
 631     point.x = rect.left;
 632     point.y = rect.top;
 633     if (parent)
 634     {
 635         ::ScreenToClient((HWND) parent->GetHWND(), &point);
 636     }
 637
 638     // We may be faking the client origin. So a window that's really at (0, 30)
 639     // may appear (to wxWin apps) to be at (0, 0).
 640     if (GetParent())
 641     {
 642         wxPoint pt(GetParent()->GetClientAreaOrigin());
 643         point.x -= pt.x;
 644         point.y -= pt.y;
 645     }
 646
 647     *x = point.x;
 648     *y = point.y;
 649 }
 650
 651 void wxRadioBox::SetFocus()
 652 {
 653     if (m_noItems > 0)
 654     {
 655         if (m_selectedButton == -1)
 656             ::SetFocus((HWND) m_radioButtons[0]);
 657         else
 658             ::SetFocus((HWND) m_radioButtons[m_selectedButton]);
 659     }
 660
 661 }
 662
 663 bool wxRadioBox::Show(bool show)
 664 {
 665     if ( !wxControl::Show(show) )
 666         return FALSE;
 667
 668     int nCmdShow = show ? SW_SHOW : SW_HIDE;
 669     for ( int i = 0; i < m_noItems; i++ )
 670     {
 671         ::ShowWindow((HWND)m_radioButtons[i], nCmdShow);
 672     }
 673
 674     return TRUE;
 675 }
 676
 677 // Enable a specific button
 678 void wxRadioBox::Enable(int item, bool enable)
 679 {
 680     wxCHECK_RET( item >= 0 && item < m_noItems,
 681                  wxT("invalid item in wxRadioBox::Enable()") );
 682
 683     ::EnableWindow((HWND) m_radioButtons[item], enable);
 684 }
 685
 686 // Enable all controls
 687 bool wxRadioBox::Enable(bool enable)
 688 {
 689     if ( !wxControl::Enable(enable) )
 690         return FALSE;
 691
 692     for (int i = 0; i < m_noItems; i++)
 693         ::EnableWindow((HWND) m_radioButtons[i], enable);
 694
 695     return TRUE;
 696 }
 697
 698 // Show a specific button
 699 void wxRadioBox::Show(int item, bool show)
 700 {
 701     wxCHECK_RET( item >= 0 && item < m_noItems,
 702                  wxT("invalid item in wxRadioBox::Show()") );
 703
 704     ::ShowWindow((HWND)m_radioButtons[item], show ? SW_SHOW : SW_HIDE);
 705 }
 706
 707 // For single selection items only
 708 wxString wxRadioBox::GetStringSelection() const
 709 {
 710     wxString result;
 711     int sel = GetSelection();
 712     if (sel > -1)
 713         result = GetString(sel);
 714
 715     return result;
 716 }
 717
 718 bool wxRadioBox::SetStringSelection(const wxString& s)
 719 {
 720     int sel = FindString (s);
 721     if (sel > -1)
 722     {
 723         SetSelection (sel);
 724         return TRUE;
 725     }
 726     else
 727         return FALSE;
 728 }
 729
 730 bool wxRadioBox::ContainsHWND(WXHWND hWnd) const
 731 {
 732     int i;
 733     for (i = 0; i < Number(); i++)
 734     {
 735         if (GetRadioButtons()[i] == hWnd)
 736             return TRUE;
 737     }
 738
 739     return FALSE;
 740 }
 741
 742 void wxRadioBox::Command(wxCommandEvent & event)
 743 {
 744     SetSelection (event.m_commandInt);
 745     ProcessCommand (event);
 746 }
 747
 748 // NB: if this code is changed, wxGetWindowForHWND() which relies on having the
 749 //     radiobox pointer in GWL_USERDATA for radio buttons must be updated too!
 750 void wxRadioBox::SubclassRadioButton(WXHWND hWndBtn)
 751 {
 752     // No GWL_USERDATA in Win16, so omit this subclassing.
 753 #ifdef __WIN32__
 754     HWND hwndBtn = (HWND)hWndBtn;
 755
 756     if ( !s_wndprocRadioBtn )
 757         s_wndprocRadioBtn = (WXFARPROC)::GetWindowLong(hwndBtn, GWL_WNDPROC);
 758
 759     ::SetWindowLong(hwndBtn, GWL_WNDPROC, (long)wxRadioBtnWndProc);
 760     ::SetWindowLong(hwndBtn, GWL_USERDATA, (long)this);
 761 #endif // __WIN32__
 762 }
 763
 764 void wxRadioBox::SendNotificationEvent()
 765 {
 766     wxCommandEvent event(wxEVT_COMMAND_RADIOBOX_SELECTED, m_windowId);
 767     event.SetInt( m_selectedButton );
 768     event.SetString( GetString(m_selectedButton) );
 769     event.SetEventObject( this );
 770     ProcessCommand(event);
 771 }
 772
 773 bool wxRadioBox::SetFont(const wxFont& font)
 774 {
 775     if ( !wxControl::SetFont(font) )
 776     {
 777         // nothing to do
 778         return FALSE;
 779     }
 780
 781     // also set the font of our radio buttons
 782     WXHFONT hfont = wxFont(font).GetResourceHandle();
 783     for ( int n = 0; n < m_noItems; n++ )
 784     {
 785         HWND hwndBtn = (HWND)m_radioButtons[n];
 786         ::SendMessage(hwndBtn, WM_SETFONT, (WPARAM)hfont, 0L);
 787
 788         // otherwise the buttons are not redrawn correctly
 789         ::InvalidateRect(hwndBtn, NULL, FALSE /* don't erase bg */);
 790     }
 791
 792     return TRUE;
 793 }
 794
 795 // ----------------------------------------------------------------------------
 796 // our window proc
 797 // ----------------------------------------------------------------------------
 798
 799 long wxRadioBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 800 {
 801     switch ( nMsg )
 802     {
 803 #ifdef __WIN32__
 804         case WM_CTLCOLORSTATIC:
 805             // set the colour of the radio buttons to be the same as ours
 806             {
 807                 HDC hdc = (HDC)wParam;
 808
 809                 const wxColour& colBack = GetBackgroundColour();
 810                 ::SetBkColor(hdc, wxColourToRGB(colBack));
 811                 ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));
 812
 813                 wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBack, wxSOLID);
 814
 815                 return (WXHBRUSH)brush->GetResourceHandle();
 816             }
 817 #endif // Win32
 818
 819         // This is required for the radiobox to be sensitive to mouse input,
 820         // e.g. for Dialog Editor.
 821         case WM_NCHITTEST:
 822             {
 823                 int xPos = LOWORD(lParam);  // horizontal position of cursor
 824                 int yPos = HIWORD(lParam);  // vertical position of cursor
 825
 826                 ScreenToClient(&xPos, &yPos);
 827
 828                 // Make sure you can drag by the top of the groupbox, but let
 829                 // other (enclosed) controls get mouse events also
 830                 if (yPos < 10)
 831                     return (long)HTCLIENT;
 832             }
 833             break;
 834     }
 835
 836     return wxControl::MSWWindowProc(nMsg, wParam, lParam);
 837 }
 838
 839 WXHBRUSH wxRadioBox::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSED(nCtlColor),
 840                                WXUINT WXUNUSED(message),
 841                                WXWPARAM WXUNUSED(wParam),
 842                                WXLPARAM WXUNUSED(lParam))
 843 {
 844 #if wxUSE_CTL3D
 845     if ( m_useCtl3D )
 846     {
 847         HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
 848         return (WXHBRUSH) hbrush;
 849     }
 850 #endif // wxUSE_CTL3D
 851
 852     HDC hdc = (HDC)pDC;
 853     if (GetParent()->GetTransparentBackground())
 854         SetBkMode(hdc, TRANSPARENT);
 855     else
 856         SetBkMode(hdc, OPAQUE);
 857
 858     wxColour colBack = GetBackgroundColour();
 859
 860     if (!IsEnabled())
 861         colBack = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
 862
 863     ::SetBkColor(hdc, wxColourToRGB(colBack));
 864     ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));
 865
 866     wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBack, wxSOLID);
 867
 868     return (WXHBRUSH)brush->GetResourceHandle();
 869 }
 870
 871
 872 // ---------------------------------------------------------------------------
 873 // window proc for radio buttons
 874 // ---------------------------------------------------------------------------
 875
 876 #ifdef __WIN32__
 877
 878 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hwnd,
 879                                            UINT message,
 880                                            WPARAM wParam,
 881                                            LPARAM lParam)
 882 {
 883     switch ( message )
 884     {
 885         case WM_GETDLGCODE:
 886             // we must tell IsDialogMessage()/our kbd processing code that we
 887             // want to process arrows ourselves because neither of them is
 888             // smart enough to handle arrows properly for us
 889             {
 890                 long lDlgCode = ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd,
 891                                                  message, wParam, lParam);
 892
 893                 return lDlgCode | DLGC_WANTARROWS;
 894             }
 895
 896 #if wxUSE_TOOLTIPS
 897         case WM_NOTIFY:
 898             {
 899                 NMHDR* hdr = (NMHDR *)lParam;
 900                 if ( (int)hdr->code == TTN_NEEDTEXT )
 901                 {
 902                     wxRadioBox *radiobox = (wxRadioBox *)
 903                         ::GetWindowLong(hwnd, GWL_USERDATA);
 904
 905                     wxCHECK_MSG( radiobox, 0,
 906                                  wxT("radio button without radio box?") );
 907
 908                     wxToolTip *tooltip = radiobox->GetToolTip();
 909                     if ( tooltip )
 910                     {
 911                         TOOLTIPTEXT *ttt = (TOOLTIPTEXT *)lParam;
 912                         ttt->lpszText = (wxChar *)tooltip->GetTip().c_str();
 913                     }
 914
 915                     // processed
 916                     return 0;
 917                 }
 918             }
 919             break;
 920 #endif // wxUSE_TOOLTIPS
 921
 922         case WM_KEYDOWN:
 923             {
 924                 wxRadioBox *radiobox = (wxRadioBox *)
 925                     ::GetWindowLong(hwnd, GWL_USERDATA);
 926
 927                 wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
 928
 929                 bool processed = TRUE;
 930
 931                 bool horz = (radiobox->GetWindowStyle() & wxRA_SPECIFY_COLS) != 0;
 932                 int num = radiobox->Number(),
 933                     rows = radiobox->GetNumVer(),
 934                     cols = radiobox->GetNumHor();
 935
 936                 int selOld = radiobox->GetSelection();
 937                 int selNew = selOld;
 938
 939                 // wrapping will be handled below for the cases when we
 940                 // add/substract more than 1 but here otherwise as it's simpler
 941                 switch ( wParam )
 942                 {
 943                     case VK_UP:
 944                         if ( horz )
 945                             selNew -= cols;
 946                         else
 947                         {
 948                             if ( selNew )
 949                                 selNew--;
 950                             else
 951                                 selNew = num - 1;
 952                         }
 953                         break;
 954
 955                     case VK_LEFT:
 956                         if ( horz )
 957                         {
 958                             if ( selNew )
 959                                 selNew--;
 960                             else
 961                                 selNew = num - 1;
 962                         }
 963                         else
 964                             selNew -= rows;
 965                         break;
 966
 967                     case VK_DOWN:
 968                         if ( horz )
 969                             selNew += cols;
 970                         else
 971                         {
 972                             if ( ++selNew == num )
 973                                 selNew = 0;
 974                         }
 975                         break;
 976
 977                     case VK_RIGHT:
 978                         if ( horz )
 979                         {
 980                             if ( ++selNew == num )
 981                                 selNew = 0;
 982                         }
 983                         else
 984                             selNew += rows;
 985                         break;
 986
 987                     default:
 988                         processed = FALSE;
 989                 }
 990
 991                 if ( processed )
 992                 {
 993                     // ensure that selNew is in range [0..num)
 994                     if ( selNew >= num )
 995                     {
 996                         selNew -= num;
 997
 998                         int dim = horz ? cols : rows;
 999                         selNew += dim - 1;
1000                         selNew %= dim;
1001                     }
1002                     else if ( selNew < 0 )
1003                     {
1004                         selNew += num;
1005
1006                         int dim = horz ? cols : rows;
1007                         if ( selNew % dim == 0 )
1008                         {
1009                             selNew -= dim - 1;
1010                         }
1011                         else
1012                         {
1013                             selNew++;
1014                         }
1015                     }
1016
1017                     if ( selNew != selOld )
1018                     {
1019                         radiobox->SetSelection(selNew);
1020
1021                         // emulate the button click
1022                         radiobox->SendNotificationEvent();
1023
1024                         return 0;
1025                     }
1026                 }
1027             }
1028             break;
1029
1030 #ifdef __WIN32__
1031         case WM_HELP:
1032         {
1033             wxRadioBox *radiobox = (wxRadioBox *)
1034                     ::GetWindowLong(hwnd, GWL_USERDATA);
1035
1036             wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
1037
1038             bool processed = TRUE;
1039
1040             HELPINFO* info = (HELPINFO*) lParam;
1041             // Don't yet process menu help events, just windows
1042             if (info->iContextType == HELPINFO_WINDOW)
1043             {
1044                 wxWindow* subjectOfHelp = radiobox;
1045                 bool eventProcessed = FALSE;
1046                 while (subjectOfHelp && !eventProcessed)
1047                 {
1048                     wxHelpEvent helpEvent(wxEVT_HELP, subjectOfHelp->GetId(), wxPoint(info->MousePos.x, info->MousePos.y) ) ; // info->iCtrlId);
1049                     helpEvent.SetEventObject(radiobox);
1050                     eventProcessed = radiobox->GetEventHandler()->ProcessEvent(helpEvent);
1051
1052                     // Go up the window hierarchy until the event is handled (or not)
1053                     subjectOfHelp = subjectOfHelp->GetParent();
1054                 }
1055                 processed = eventProcessed;
1056             }
1057             else if (info->iContextType == HELPINFO_MENUITEM)
1058             {
1059                 wxHelpEvent helpEvent(wxEVT_HELP, info->iCtrlId) ;
1060                 helpEvent.SetEventObject(radiobox);
1061                 processed = radiobox->GetEventHandler()->ProcessEvent(helpEvent);
1062             }
1063             else processed = FALSE;
1064
1065             if (processed)
1066                 return 0;
1067
1068             break;
1069         }
1070 #endif
1071     }
1072
1073     return ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd, message, wParam, lParam);
1074 }
1075
1076 #endif // __WIN32__
1077