src/msw/radiobox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        radiobox.cpp
   3 // Purpose:     wxRadioBox
   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/log.h"
  36 #endif
  37
  38 #include "wx/msw/private.h"
  39
  40 #if wxUSE_TOOLTIPS
  41     #ifndef __GNUWIN32_OLD__
  42         #include <commctrl.h>
  43     #endif
  44     #include "wx/tooltip.h"
  45 #endif // wxUSE_TOOLTIPS
  46
  47 IMPLEMENT_DYNAMIC_CLASS(wxRadioBox, wxControl)
  48
  49 // there are two possible ways to create the radio buttons: either as children
  50 // of the radiobox or as siblings of it - allow playing with both variants for
  51 // now, eventually we will choose the best one for our purposes
  52 //
  53 // two main problems are the keyboard navigation inside the radiobox (arrows
  54 // should switch between buttons, not pass focus to the next control) and the
  55 // tooltips - a tooltip is associated with the radiobox itself, not the
  56 // children...
  57 //
  58 // the problems with setting this to 1:
  59 // a) Alt-<mnemonic of radiobox> isn't handled properly by IsDialogMessage()
  60 //    because it sets focus to the next control accepting it which is not a
  61 //    radio button but a radiobox sibling in this case - the only solution to
  62 //    this would be to handle Alt-<mnemonic> ourselves
  63 // b) the problems with setting radiobox colours under Win98/2K were reported
  64 //    but I couldn't reproduce it so I have no idea about what causes it
  65 //
  66 // the problems with setting this to 0:
  67 // a) the tooltips are not shown for the radiobox - possible solution: make
  68 //    TTM_WINDOWFROMPOS handling code in msw/tooltip.cpp work (easier said than
  69 //    done because I don't know why it doesn't work)
  70 #define RADIOBTN_PARENT_IS_RADIOBOX 0
  71
  72 // ---------------------------------------------------------------------------
  73 // private functions
  74 // ---------------------------------------------------------------------------
  75
  76 // wnd proc for radio buttons
  77 #ifdef __WIN32__
  78 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hWnd,
  79                                            UINT message,
  80                                            WPARAM wParam,
  81                                            LPARAM lParam);
  82
  83 // ---------------------------------------------------------------------------
  84 // global vars
  85 // ---------------------------------------------------------------------------
  86
  87 // the pointer to standard radio button wnd proc
  88 static WNDPROC s_wndprocRadioBtn = (WNDPROC)NULL;
  89
  90 #endif // __WIN32__
  91
  92 // ===========================================================================
  93 // implementation
  94 // ===========================================================================
  95
  96 // ---------------------------------------------------------------------------
  97 // wxRadioBox
  98 // ---------------------------------------------------------------------------
  99
 100 int wxRadioBox::GetNumVer() const
 101 {
 102     if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 103     {
 104         return m_majorDim;
 105     }
 106     else
 107     {
 108         return (m_noItems + m_majorDim - 1)/m_majorDim;
 109     }
 110 }
 111
 112 int wxRadioBox::GetNumHor() const
 113 {
 114     if ( m_windowStyle & wxRA_SPECIFY_ROWS )
 115     {
 116         return (m_noItems + m_majorDim - 1)/m_majorDim;
 117     }
 118     else
 119     {
 120         return m_majorDim;
 121     }
 122 }
 123
 124 bool wxRadioBox::MSWCommand(WXUINT cmd, WXWORD id)
 125 {
 126     if ( cmd == BN_CLICKED )
 127     {
 128         int selectedButton = -1;
 129
 130         for ( int i = 0; i < m_noItems; i++ )
 131         {
 132             if ( id == wxGetWindowId(m_radioButtons[i]) )
 133             {
 134                 selectedButton = i;
 135
 136                 break;
 137             }
 138         }
 139
 140         wxASSERT_MSG( selectedButton != -1, wxT("click from alien button?") );
 141
 142         if ( selectedButton != m_selectedButton )
 143         {
 144             m_selectedButton = selectedButton;
 145
 146             SendNotificationEvent();
 147         }
 148         //else: don't generate events when the selection doesn't change
 149
 150         return TRUE;
 151     }
 152     else
 153         return FALSE;
 154 }
 155
 156 #if WXWIN_COMPATIBILITY
 157 wxRadioBox::wxRadioBox(wxWindow *parent, wxFunction func, const char *title,
 158         int x, int y, int width, int height,
 159         int n, char **choices,
 160         int majorDim, long style, const char *name)
 161 {
 162     wxString *choices2 = new wxString[n];
 163     for ( int i = 0; i < n; i ++) choices2[i] = choices[i];
 164     Create(parent, -1, title, wxPoint(x, y), wxSize(width, height), n, choices2, majorDim, style,
 165             wxDefaultValidator, name);
 166     Callback(func);
 167     delete choices2;
 168 }
 169
 170 #endif // WXWIN_COMPATIBILITY
 171
 172 // Radio box item
 173 wxRadioBox::wxRadioBox()
 174 {
 175     m_selectedButton = -1;
 176     m_noItems = 0;
 177     m_noRowsOrCols = 0;
 178     m_radioButtons = NULL;
 179     m_majorDim = 0;
 180     m_radioWidth = NULL;
 181     m_radioHeight = NULL;
 182 }
 183
 184 bool wxRadioBox::Create(wxWindow *parent,
 185                         wxWindowID id,
 186                         const wxString& title,
 187                         const wxPoint& pos,
 188                         const wxSize& size,
 189                         int n,
 190                         const wxString choices[],
 191                         int majorDim,
 192                         long style,
 193                         const wxValidator& val,
 194                         const wxString& name)
 195 {
 196     // initialize members
 197     m_selectedButton = -1;
 198     m_noItems = 0;
 199
 200     m_majorDim =  majorDim == 0 ? n : majorDim;
 201     m_noRowsOrCols = majorDim;
 202
 203     // common initialization
 204     if ( !CreateControl(parent, id, pos, size, style, val, name) )
 205         return FALSE;
 206
 207     // create the static box
 208     if ( !MSWCreateControl(wxT("BUTTON"), BS_GROUPBOX | WS_GROUP,
 209                            pos, size, title, 0) )
 210         return FALSE;
 211
 212     // and now create the buttons
 213     m_noItems = n;
 214 #if RADIOBTN_PARENT_IS_RADIOBOX
 215     HWND hwndParent = GetHwnd();
 216 #else
 217     HWND hwndParent = GetHwndOf(parent);
 218 #endif
 219
 220     // Some radio boxes test consecutive id.
 221     (void)NewControlId();
 222     m_radioButtons = new WXHWND[n];
 223     m_radioWidth = new int[n];
 224     m_radioHeight = new int[n];
 225
 226     WXHFONT hfont = 0;
 227     wxFont& font = GetFont();
 228     if ( font.Ok() )
 229     {
 230         hfont = font.GetResourceHandle();
 231     }
 232
 233     for ( int i = 0; i < n; i++ )
 234     {
 235         m_radioWidth[i] =
 236         m_radioHeight[i] = -1;
 237         long styleBtn = BS_AUTORADIOBUTTON | WS_TABSTOP | WS_CHILD | WS_VISIBLE;
 238         if ( i == 0 && style == 0 )
 239             styleBtn |= WS_GROUP;
 240
 241         long newId = NewControlId();
 242
 243         HWND hwndBtn = ::CreateWindow(_T("BUTTON"),
 244                                       choices[i],
 245                                       styleBtn,
 246                                       0, 0, 0, 0,   // will be set in SetSize()
 247                                       hwndParent,
 248                                       (HMENU)newId,
 249                                       wxGetInstance(),
 250                                       NULL);
 251
 252         if ( !hwndBtn )
 253         {
 254             wxLogLastError("CreateWindow(radio btn)");
 255
 256             return FALSE;
 257         }
 258
 259         m_radioButtons[i] = (WXHWND)hwndBtn;
 260
 261         SubclassRadioButton((WXHWND)hwndBtn);
 262
 263         if ( hfont )
 264         {
 265             ::SendMessage(hwndBtn, WM_SETFONT, (WPARAM)hfont, 0L);
 266         }
 267
 268         m_subControls.Add(newId);
 269     }
 270
 271     // Create a dummy radio control to end the group.
 272     (void)::CreateWindow(_T("BUTTON"),
 273                          _T(""),
 274                          WS_GROUP | BS_AUTORADIOBUTTON | WS_CHILD,
 275                          0, 0, 0, 0, hwndParent,
 276                          (HMENU)NewControlId(), wxGetInstance(), NULL);
 277
 278     SetSelection(0);
 279
 280     SetSize(pos.x, pos.y, size.x, size.y);
 281
 282     return TRUE;
 283 }
 284
 285 wxRadioBox::~wxRadioBox()
 286 {
 287     m_isBeingDeleted = TRUE;
 288
 289     if (m_radioButtons)
 290     {
 291         int i;
 292         for (i = 0; i < m_noItems; i++)
 293             ::DestroyWindow((HWND)m_radioButtons[i]);
 294         delete[] m_radioButtons;
 295     }
 296
 297     if (m_radioWidth)
 298         delete[] m_radioWidth;
 299     if (m_radioHeight)
 300         delete[] m_radioHeight;
 301
 302 }
 303
 304 wxString wxRadioBox::GetLabel(int item) const
 305 {
 306     wxCHECK_MSG( item >= 0 && item < m_noItems, wxT(""), wxT("invalid radiobox index") );
 307
 308     return wxGetWindowText(m_radioButtons[item]);
 309 }
 310
 311 void wxRadioBox::SetLabel(int item, const wxString& label)
 312 {
 313     wxCHECK_RET( item >= 0 && item < m_noItems, wxT("invalid radiobox index") );
 314
 315     m_radioWidth[item] = m_radioHeight[item] = -1;
 316     SetWindowText((HWND)m_radioButtons[item], label.c_str());
 317 }
 318
 319 void wxRadioBox::SetLabel(int item, wxBitmap *bitmap)
 320 {
 321     /*
 322        m_radioWidth[item] = bitmap->GetWidth() + FB_MARGIN;
 323        m_radioHeight[item] = bitmap->GetHeight() + FB_MARGIN;
 324      */
 325     wxFAIL_MSG(wxT("not implemented"));
 326 }
 327
 328 int wxRadioBox::FindString(const wxString& s) const
 329 {
 330     for (int i = 0; i < m_noItems; i++)
 331     {
 332         if ( s == wxGetWindowText(m_radioButtons[i]) )
 333             return i;
 334     }
 335
 336     return wxNOT_FOUND;
 337 }
 338
 339 void wxRadioBox::SetSelection(int N)
 340 {
 341     wxCHECK_RET( (N >= 0) && (N < m_noItems), wxT("invalid radiobox index") );
 342
 343     // Following necessary for Win32s, because Win32s translate BM_SETCHECK
 344     if (m_selectedButton >= 0 && m_selectedButton < m_noItems)
 345         ::SendMessage((HWND) m_radioButtons[m_selectedButton], BM_SETCHECK, 0, 0L);
 346
 347     ::SendMessage((HWND)m_radioButtons[N], BM_SETCHECK, 1, 0L);
 348     ::SetFocus((HWND)m_radioButtons[N]);
 349
 350     m_selectedButton = N;
 351 }
 352
 353 // Get single selection, for single choice list items
 354 int wxRadioBox::GetSelection() const
 355 {
 356     return m_selectedButton;
 357 }
 358
 359 // Find string for position
 360 wxString wxRadioBox::GetString(int N) const
 361 {
 362     return wxGetWindowText(m_radioButtons[N]);
 363 }
 364
 365 // Restored old code.
 366 void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
 367 {
 368     int currentX, currentY;
 369     GetPosition(&currentX, &currentY);
 370     int widthOld, heightOld;
 371     GetSize(&widthOld, &heightOld);
 372
 373     int xx = x;
 374     int yy = y;
 375
 376     if (x == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 377         xx = currentX;
 378     if (y == -1 && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 379         yy = currentY;
 380
 381 #if RADIOBTN_PARENT_IS_RADIOBOX
 382     int y_offset = 0;
 383     int x_offset = 0;
 384 #else
 385     int y_offset = yy;
 386     int x_offset = xx;
 387 #endif
 388
 389     int current_width, cyf;
 390
 391     int cx1,cy1;
 392     wxGetCharSize(m_hWnd, &cx1, &cy1, & GetFont());
 393
 394     // Attempt to have a look coherent with other platforms: We compute the
 395     // biggest toggle dim, then we align all items according this value.
 396     int maxWidth =  -1;
 397     int maxHeight = -1;
 398
 399     int i;
 400     for (i = 0 ; i < m_noItems; i++)
 401     {
 402         int eachWidth;
 403         int eachHeight;
 404         if (m_radioWidth[i]<0)
 405         {
 406             // It's a labelled toggle
 407             GetTextExtent(wxGetWindowText(m_radioButtons[i]),
 408                           &current_width, &cyf);
 409             eachWidth = (int)(current_width + RADIO_SIZE);
 410             eachHeight = (int)((3*cyf)/2);
 411         }
 412         else
 413         {
 414             eachWidth = m_radioWidth[i];
 415             eachHeight = m_radioHeight[i];
 416         }
 417
 418         if (maxWidth<eachWidth)
 419             maxWidth = eachWidth;
 420         if (maxHeight<eachHeight)
 421             maxHeight = eachHeight;
 422     }
 423
 424     if (m_hWnd)
 425     {
 426         int totWidth;
 427         int totHeight;
 428
 429         int nbHor = GetNumHor(),
 430             nbVer = GetNumVer();
 431
 432         // this formula works, but I don't know why.
 433         // Please, be sure what you do if you modify it!!
 434         if (m_radioWidth[0]<0)
 435             totHeight = (nbVer * maxHeight) + cy1/2;
 436         else
 437             totHeight = nbVer * (maxHeight+cy1/2);
 438         totWidth  = nbHor * (maxWidth+cx1);
 439
 440         int extraHeight = cy1;
 441
 442 #if defined(CTL3D) && !CTL3D
 443         // Requires a bigger group box in plain Windows
 444         extraHeight *= 3;
 445         extraHeight /= 2;
 446 #endif
 447
 448         // only change our width/height if asked for
 449         if ( width == -1 )
 450         {
 451             if ( sizeFlags & wxSIZE_AUTO_WIDTH )
 452                 width = totWidth + cx1;
 453             else
 454                 width = widthOld;
 455         }
 456
 457         if ( height == -1 )
 458         {
 459             if ( sizeFlags & wxSIZE_AUTO_HEIGHT )
 460                 height = totHeight + extraHeight;
 461             else
 462                 height = heightOld;
 463         }
 464
 465         ::MoveWindow(GetHwnd(), xx, yy, width, height, TRUE);
 466
 467         x_offset += cx1;
 468         y_offset += cy1;
 469     }
 470
 471 #if defined(CTL3D) && (!CTL3D)
 472     y_offset += (int)(cy1/2); // Fudge factor since buttons overlapped label
 473     // JACS 2/12/93. CTL3D draws group label quite high.
 474 #endif
 475     int startX = x_offset;
 476     int startY = y_offset;
 477
 478     for ( i = 0 ; i < m_noItems; i++)
 479     {
 480         // Bidimensional radio adjustment
 481         if (i&&((i%m_majorDim)==0)) // Why is this omitted for i = 0?
 482         {
 483             if (m_windowStyle & wxRA_VERTICAL)
 484             {
 485                 y_offset = startY;
 486                 x_offset += maxWidth + cx1;
 487             }
 488             else
 489             {
 490                 x_offset = startX;
 491                 y_offset += maxHeight;
 492                 if (m_radioWidth[0]>0)
 493                     y_offset += cy1/2;
 494             }
 495         }
 496         int eachWidth;
 497         int eachHeight;
 498         if (m_radioWidth[i]<0)
 499         {
 500             // It's a labeled item
 501             GetTextExtent(wxGetWindowText(m_radioButtons[i]),
 502                           &current_width, &cyf);
 503
 504             // How do we find out radio button bitmap size!!
 505             // By adjusting them carefully, manually :-)
 506             eachWidth = (int)(current_width + RADIO_SIZE);
 507             eachHeight = (int)((3*cyf)/2);
 508         }
 509         else
 510         {
 511             eachWidth = m_radioWidth[i];
 512             eachHeight = m_radioHeight[i];
 513         }
 514
 515         // VZ: make all buttons of the same, maximal size - like this they
 516         //     cover the radiobox entirely and the radiobox tooltips are always
 517         //     shown (otherwise they are not when the mouse pointer is in the
 518         //     radiobox part not belonging to any radiobutton)
 519         ::MoveWindow((HWND)m_radioButtons[i],
 520                      x_offset, y_offset, maxWidth, maxHeight,
 521                      TRUE);
 522
 523         if (m_windowStyle & wxRA_SPECIFY_ROWS)
 524         {
 525             y_offset += maxHeight;
 526             if (m_radioWidth[0]>0)
 527                 y_offset += cy1/2;
 528         }
 529         else
 530             x_offset += maxWidth + cx1;
 531     }
 532 }
 533
 534 void wxRadioBox::GetSize(int *width, int *height) const
 535 {
 536     RECT rect;
 537     rect.left = -1; rect.right = -1; rect.top = -1; rect.bottom = -1;
 538
 539     if (m_hWnd)
 540         wxFindMaxSize(m_hWnd, &rect);
 541
 542     int i;
 543     for (i = 0; i < m_noItems; i++)
 544         wxFindMaxSize(m_radioButtons[i], &rect);
 545
 546     *width = rect.right - rect.left;
 547     *height = rect.bottom - rect.top;
 548 }
 549
 550 void wxRadioBox::GetPosition(int *x, int *y) const
 551 {
 552     wxWindow *parent = GetParent();
 553     RECT rect = { -1, -1, -1, -1 };
 554
 555     int i;
 556     for (i = 0; i < m_noItems; i++)
 557         wxFindMaxSize(m_radioButtons[i], &rect);
 558
 559     if (m_hWnd)
 560         wxFindMaxSize(m_hWnd, &rect);
 561
 562     // Since we now have the absolute screen coords, if there's a parent we
 563     // must subtract its top left corner
 564     POINT point;
 565     point.x = rect.left;
 566     point.y = rect.top;
 567     if (parent)
 568     {
 569         ::ScreenToClient((HWND) parent->GetHWND(), &point);
 570     }
 571
 572     // We may be faking the client origin. So a window that's really at (0, 30)
 573     // may appear (to wxWin apps) to be at (0, 0).
 574     if (GetParent())
 575     {
 576         wxPoint pt(GetParent()->GetClientAreaOrigin());
 577         point.x -= pt.x;
 578         point.y -= pt.y;
 579     }
 580
 581     *x = point.x;
 582     *y = point.y;
 583 }
 584
 585 void wxRadioBox::SetFocus()
 586 {
 587     if (m_noItems > 0)
 588     {
 589         if (m_selectedButton == -1)
 590             ::SetFocus((HWND) m_radioButtons[0]);
 591         else
 592             ::SetFocus((HWND) m_radioButtons[m_selectedButton]);
 593     }
 594
 595 }
 596
 597 bool wxRadioBox::Show(bool show)
 598 {
 599     if ( !wxControl::Show(show) )
 600         return FALSE;
 601
 602     int nCmdShow = show ? SW_SHOW : SW_HIDE;
 603     for ( int i = 0; i < m_noItems; i++ )
 604     {
 605         ::ShowWindow((HWND)m_radioButtons[i], nCmdShow);
 606     }
 607
 608     return TRUE;
 609 }
 610
 611 // Enable a specific button
 612 void wxRadioBox::Enable(int item, bool enable)
 613 {
 614     wxCHECK_RET( item >= 0 && item < m_noItems,
 615                  wxT("invalid item in wxRadioBox::Enable()") );
 616
 617     ::EnableWindow((HWND) m_radioButtons[item], enable);
 618 }
 619
 620 // Enable all controls
 621 bool wxRadioBox::Enable(bool enable)
 622 {
 623     if ( !wxControl::Enable(enable) )
 624         return FALSE;
 625
 626     for (int i = 0; i < m_noItems; i++)
 627         ::EnableWindow((HWND) m_radioButtons[i], enable);
 628
 629     return TRUE;
 630 }
 631
 632 // Show a specific button
 633 void wxRadioBox::Show(int item, bool show)
 634 {
 635     wxCHECK_RET( item >= 0 && item < m_noItems,
 636                  wxT("invalid item in wxRadioBox::Show()") );
 637
 638     ::ShowWindow((HWND)m_radioButtons[item], show ? SW_SHOW : SW_HIDE);
 639 }
 640
 641 // For single selection items only
 642 wxString wxRadioBox::GetStringSelection() const
 643 {
 644     wxString result;
 645     int sel = GetSelection();
 646     if (sel > -1)
 647         result = GetString(sel);
 648
 649     return result;
 650 }
 651
 652 bool wxRadioBox::SetStringSelection(const wxString& s)
 653 {
 654     int sel = FindString (s);
 655     if (sel > -1)
 656     {
 657         SetSelection (sel);
 658         return TRUE;
 659     }
 660     else
 661         return FALSE;
 662 }
 663
 664 bool wxRadioBox::ContainsHWND(WXHWND hWnd) const
 665 {
 666     int i;
 667     for (i = 0; i < Number(); i++)
 668     {
 669         if (GetRadioButtons()[i] == hWnd)
 670             return TRUE;
 671     }
 672
 673     return FALSE;
 674 }
 675
 676 void wxRadioBox::Command(wxCommandEvent & event)
 677 {
 678     SetSelection (event.m_commandInt);
 679     ProcessCommand (event);
 680 }
 681
 682 // NB: if this code is changed, wxGetWindowForHWND() which relies on having the
 683 //     radiobox pointer in GWL_USERDATA for radio buttons must be updated too!
 684 void wxRadioBox::SubclassRadioButton(WXHWND hWndBtn)
 685 {
 686     // No GWL_USERDATA in Win16, so omit this subclassing.
 687 #ifdef __WIN32__
 688     HWND hwndBtn = (HWND)hWndBtn;
 689
 690     if ( !s_wndprocRadioBtn )
 691         s_wndprocRadioBtn = (WNDPROC)::GetWindowLong(hwndBtn, GWL_WNDPROC);
 692
 693     ::SetWindowLong(hwndBtn, GWL_WNDPROC, (long)wxRadioBtnWndProc);
 694     ::SetWindowLong(hwndBtn, GWL_USERDATA, (long)this);
 695 #endif // __WIN32__
 696 }
 697
 698 void wxRadioBox::SendNotificationEvent()
 699 {
 700     wxCommandEvent event(wxEVT_COMMAND_RADIOBOX_SELECTED, m_windowId);
 701     event.SetInt( m_selectedButton );
 702     event.SetString( GetString(m_selectedButton) );
 703     event.SetEventObject( this );
 704     ProcessCommand(event);
 705 }
 706
 707 bool wxRadioBox::SetFont(const wxFont& font)
 708 {
 709     if ( !wxControl::SetFont(font) )
 710     {
 711         // nothing to do
 712         return FALSE;
 713     }
 714
 715     // also set the font of our radio buttons
 716     WXHFONT hfont = wxFont(font).GetResourceHandle();
 717     for ( int n = 0; n < m_noItems; n++ )
 718     {
 719         ::SendMessage((HWND)m_radioButtons[n], WM_SETFONT, (WPARAM)hfont, 0L);
 720     }
 721
 722     // this is needed because otherwise the buttons are not redrawn correctly
 723     Refresh();
 724
 725     return TRUE;
 726 }
 727
 728 // ----------------------------------------------------------------------------
 729 // our window proc
 730 // ----------------------------------------------------------------------------
 731
 732 long wxRadioBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 733 {
 734     switch ( nMsg )
 735     {
 736 #ifdef __WIN32__
 737         case WM_CTLCOLORSTATIC:
 738             // set the colour of the radio buttons to be the same as ours
 739             {
 740                 HDC hdc = (HDC)wParam;
 741
 742                 const wxColour& colBack = GetBackgroundColour();
 743                 ::SetBkColor(hdc, wxColourToRGB(colBack));
 744                 ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));
 745
 746                 wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBack, wxSOLID);
 747
 748                 return (WXHBRUSH)brush->GetResourceHandle();
 749             }
 750 #endif // Win32
 751
 752         // This is required for the radiobox to be sensitive to mouse input,
 753         // e.g. for Dialog Editor.
 754         case WM_NCHITTEST:
 755             {
 756                 int xPos = LOWORD(lParam);  // horizontal position of cursor
 757                 int yPos = HIWORD(lParam);  // vertical position of cursor
 758
 759                 ScreenToClient(&xPos, &yPos);
 760
 761                 // Make sure you can drag by the top of the groupbox, but let
 762                 // other (enclosed) controls get mouse events also
 763                 if (yPos < 10)
 764                     return (long)HTCLIENT;
 765             }
 766             break;
 767     }
 768
 769     return wxControl::MSWWindowProc(nMsg, wParam, lParam);
 770 }
 771
 772 // ---------------------------------------------------------------------------
 773 // window proc for radio buttons
 774 // ---------------------------------------------------------------------------
 775
 776 #ifdef __WIN32__
 777
 778 LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hwnd,
 779                                            UINT message,
 780                                            WPARAM wParam,
 781                                            LPARAM lParam)
 782 {
 783     switch ( message )
 784     {
 785         case WM_GETDLGCODE:
 786             // we must tell IsDialogMessage()/our kbd processing code that we
 787             // want to process arrows ourselves because neither of them is
 788             // smart enough to handle arrows properly for us
 789             {
 790                 long lDlgCode = ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd,
 791                                                  message, wParam, lParam);
 792
 793                 return lDlgCode | DLGC_WANTARROWS;
 794             }
 795
 796 #if wxUSE_TOOLTIPS
 797         case WM_NOTIFY:
 798             {
 799                 NMHDR* hdr = (NMHDR *)lParam;
 800                 if ( (int)hdr->code == TTN_NEEDTEXT )
 801                 {
 802                     wxRadioBox *radiobox = (wxRadioBox *)
 803                         ::GetWindowLong(hwnd, GWL_USERDATA);
 804
 805                     wxCHECK_MSG( radiobox, 0,
 806                                  wxT("radio button without radio box?") );
 807
 808                     wxToolTip *tooltip = radiobox->GetToolTip();
 809                     if ( tooltip )
 810                     {
 811                         TOOLTIPTEXT *ttt = (TOOLTIPTEXT *)lParam;
 812                         ttt->lpszText = (wxChar *)tooltip->GetTip().c_str();
 813                     }
 814
 815                     // processed
 816                     return 0;
 817                 }
 818             }
 819             break;
 820 #endif // wxUSE_TOOLTIPS
 821
 822         case WM_KEYDOWN:
 823             {
 824                 wxRadioBox *radiobox = (wxRadioBox *)
 825                     ::GetWindowLong(hwnd, GWL_USERDATA);
 826
 827                 wxCHECK_MSG( radiobox, 0, wxT("radio button without radio box?") );
 828
 829                 bool processed = TRUE;
 830
 831                 int selOld = radiobox->GetSelection();
 832                 int selNew = selOld;
 833
 834                 switch ( wParam )
 835                 {
 836                     case VK_UP:
 837                         selNew--;
 838                         break;
 839
 840                     case VK_LEFT:
 841                         selNew -= radiobox->GetNumVer();
 842                         break;
 843
 844                     case VK_DOWN:
 845                         selNew++;
 846                         break;
 847
 848                     case VK_RIGHT:
 849                         selNew += radiobox->GetNumVer();
 850                         break;
 851
 852                     default:
 853                         processed = FALSE;
 854                 }
 855
 856                 if ( processed )
 857                 {
 858                     // ensure that selNew is in range [0..num)
 859                     int num = radiobox->Number();
 860                     selNew += num;
 861                     selNew %= num;
 862
 863                     if ( selNew != selOld )
 864                     {
 865                         radiobox->SetSelection(selNew);
 866
 867                         // emulate the button click
 868                         radiobox->SendNotificationEvent();
 869
 870                         return 0;
 871                     }
 872                 }
 873             }
 874     }
 875
 876     return ::CallWindowProc(CASTWNDPROC s_wndprocRadioBtn, hwnd, message, wParam, lParam);
 877 }
 878
 879 #endif // __WIN32__
 880