src/os2/listbox.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        listbox.cpp
   3 // Purpose:     wxListBox
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     10/09/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) David Webster
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #include "wx/window.h"
  16 #include "wx/os2/private.h"
  17
  18 #ifndef WX_PRECOMP
  19 #include "wx/listbox.h"
  20 #include "wx/settings.h"
  21 #include "wx/brush.h"
  22 #include "wx/font.h"
  23 #include "wx/dc.h"
  24 #include "wx/utils.h"
  25 #endif
  26
  27 #define INCL_M
  28 #include <os2.h>
  29
  30 #include "wx/dynarray.h"
  31 #include "wx/log.h"
  32
  33 #if wxUSE_OWNER_DRAWN
  34     #include  "wx/ownerdrw.h"
  35 #endif
  36
  37   IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl)
  38
  39 // ============================================================================
  40 // list box item declaration and implementation
  41 // ============================================================================
  42
  43 #if wxUSE_OWNER_DRAWN
  44
  45 class wxListBoxItem : public wxOwnerDrawn
  46 {
  47 public:
  48     wxListBoxItem(const wxString& str = "");
  49 };
  50
  51 wxListBoxItem::wxListBoxItem(const wxString& str) : wxOwnerDrawn(str, FALSE)
  52 {
  53     // no bitmaps/checkmarks
  54     SetMarginWidth(0);
  55 }
  56
  57 wxOwnerDrawn *wxListBox::CreateItem(size_t n)
  58 {
  59     return new wxListBoxItem();
  60 }
  61
  62 #endif  //USE_OWNER_DRAWN
  63
  64 // ============================================================================
  65 // list box control implementation
  66 // ============================================================================
  67
  68 // Listbox item
  69 wxListBox::wxListBox()
  70 {
  71     m_noItems = 0;
  72     m_selected = 0;
  73 }
  74
  75 bool wxListBox::Create(wxWindow *parent,
  76                        wxWindowID id,
  77                        const wxPoint& pos,
  78                        const wxSize& size,
  79                        int n, const wxString choices[],
  80                        long style,
  81 #if wxUSE_VALIDATORS
  82                        const wxValidator& validator,
  83 #endif
  84                        const wxString& name)
  85 {
  86     m_noItems = 0;
  87     m_hWnd = 0;
  88     m_selected = 0;
  89
  90     SetName(name);
  91 #if wxUSE_VALIDATORS
  92     SetValidator(validator);
  93 #endif
  94
  95     if (parent)
  96         parent->AddChild(this);
  97
  98     wxSystemSettings settings;
  99     SetBackgroundColour(settings.GetSystemColour(wxSYS_COLOUR_WINDOW));
 100     SetForegroundColour(parent->GetForegroundColour());
 101
 102     m_windowId = ( id == -1 ) ? (int)NewControlId() : id;
 103
 104     int x = pos.x;
 105     int y = pos.y;
 106     int width = size.x;
 107     int height = size.y;
 108     m_windowStyle = style;
 109
 110 // TODO:
 111 /*
 112     DWORD wstyle = WS_VISIBLE | WS_VSCROLL | WS_TABSTOP |
 113                    LBS_NOTIFY | LBS_HASSTRINGS;
 114     if (m_windowStyle & wxLB_MULTIPLE)
 115         wstyle |= LBS_MULTIPLESEL;
 116     else if (m_windowStyle & wxLB_EXTENDED)
 117         wstyle |= LBS_EXTENDEDSEL;
 118
 119     if (m_windowStyle & wxLB_ALWAYS_SB)
 120         wstyle |= LBS_DISABLENOSCROLL;
 121     if (m_windowStyle & wxLB_HSCROLL)
 122         wstyle |= WS_HSCROLL;
 123     if (m_windowStyle & wxLB_SORT)
 124         wstyle |= LBS_SORT;
 125
 126 #if wxUSE_OWNER_DRAWN
 127     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 128         // we don't support LBS_OWNERDRAWVARIABLE yet
 129         wstyle |= LBS_OWNERDRAWFIXED;
 130     }
 131 #endif
 132
 133     // Without this style, you get unexpected heights, so e.g. constraint layout
 134     // doesn't work properly
 135     wstyle |= LBS_NOINTEGRALHEIGHT;
 136
 137     bool want3D;
 138     WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
 139
 140     // Even with extended styles, need to combine with WS_BORDER for them to
 141     // look right.
 142     if ( want3D || wxStyleHasBorder(m_windowStyle) )
 143     {
 144         wstyle |= WS_BORDER;
 145     }
 146
 147     m_hWnd = (WXHWND)::CreateWindowEx(exStyle, wxT("LISTBOX"), NULL,
 148             wstyle | WS_CHILD,
 149             0, 0, 0, 0,
 150             (HWND)parent->GetHWND(), (HMENU)m_windowId,
 151             wxGetInstance(), NULL);
 152
 153     wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create listbox") );
 154
 155     // Subclass again to catch messages
 156     SubclassWin(m_hWnd);
 157
 158     size_t ui;
 159     for (ui = 0; ui < (size_t)n; ui++) {
 160         Append(choices[ui]);
 161     }
 162
 163     if ( (m_windowStyle & wxLB_MULTIPLE) == 0 )
 164         SendMessage(GetHwnd(), LB_SETCURSEL, 0, 0);
 165 */
 166     SetFont(parent->GetFont());
 167
 168     SetSize(x, y, width, height);
 169
 170     Show(TRUE);
 171
 172     return TRUE;
 173 }
 174
 175 wxListBox::~wxListBox()
 176 {
 177 #if wxUSE_OWNER_DRAWN
 178     size_t uiCount = m_aItems.Count();
 179     while ( uiCount-- != 0 ) {
 180         delete m_aItems[uiCount];
 181     }
 182 #endif // wxUSE_OWNER_DRAWN
 183 }
 184
 185 void wxListBox::SetupColours()
 186 {
 187     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
 188     SetForegroundColour(GetParent()->GetForegroundColour());
 189 }
 190
 191 // ----------------------------------------------------------------------------
 192 // implementation of wxListBoxBase methods
 193 // ----------------------------------------------------------------------------
 194
 195 void wxListBox::DoSetFirstItem(int N)
 196 {
 197     wxCHECK_RET( N >= 0 && N < m_noItems,
 198                  wxT("invalid index in wxListBox::SetFirstItem") );
 199
 200 //    SendMessage(GetHwnd(), LB_SETTOPINDEX, (WPARAM)N, (LPARAM)0);
 201 }
 202
 203 void wxListBox::Delete(int N)
 204 {
 205     wxCHECK_RET( N >= 0 && N < m_noItems,
 206                  wxT("invalid index in wxListBox::Delete") );
 207
 208 #if wxUSE_OWNER_DRAWN
 209     delete m_aItems[N];
 210     m_aItems.Remove(N);
 211 #else // !wxUSE_OWNER_DRAWN
 212     if ( HasClientObjectData() )
 213     {
 214         delete GetClientObject(N);
 215     }
 216 #endif // wxUSE_OWNER_DRAWN/!wxUSE_OWNER_DRAWN
 217
 218 //    SendMessage(GetHwnd(), LB_DELETESTRING, N, 0);
 219     m_noItems--;
 220
 221     SetHorizontalExtent("");
 222 }
 223
 224 int wxListBox::DoAppend(const wxString& item)
 225 {
 226 // TODO:
 227 /*
 228     int index = ListBox_AddString(GetHwnd(), item);
 229     m_noItems++;
 230
 231 #if wxUSE_OWNER_DRAWN
 232     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 233         wxOwnerDrawn *pNewItem = CreateItem(index); // dummy argument
 234         pNewItem->SetName(item);
 235         m_aItems.Add(pNewItem);
 236         ListBox_SetItemData(GetHwnd(), index, pNewItem);
 237     }
 238 #endif
 239
 240     SetHorizontalExtent(item);
 241
 242     return index;
 243 */
 244     return 0;
 245 }
 246
 247 void wxListBox::DoSetItems(const wxArrayString& choices, void** clientData)
 248 {
 249 // TODO:
 250 /*
 251     ShowWindow(GetHwnd(), SW_HIDE);
 252
 253     ListBox_ResetContent(GetHwnd());
 254
 255     m_noItems = choices.GetCount();
 256     int i;
 257     for (i = 0; i < m_noItems; i++)
 258     {
 259         ListBox_AddString(GetHwnd(), choices[i]);
 260         if ( clientData )
 261         {
 262 #if wxUSE_OWNER_DRAWN
 263             wxASSERT_MSG(clientData[ui] == NULL,
 264                          wxT("Can't use client data with owner-drawn listboxes"));
 265 #else // !wxUSE_OWNER_DRAWN
 266             ListBox_SetItemData(GetHwnd(), i, clientData[i]);
 267 #endif // wxUSE_OWNER_DRAWN/!wxUSE_OWNER_DRAWN
 268         }
 269     }
 270
 271 #if wxUSE_OWNER_DRAWN
 272     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 273         // first delete old items
 274         size_t ui = m_aItems.Count();
 275         while ( ui-- != 0 ) {
 276             delete m_aItems[ui];
 277         }
 278         m_aItems.Empty();
 279
 280         // then create new ones
 281         for ( ui = 0; ui < (size_t)m_noItems; ui++ ) {
 282             wxOwnerDrawn *pNewItem = CreateItem(ui);
 283             pNewItem->SetName(choices[ui]);
 284             m_aItems.Add(pNewItem);
 285             ListBox_SetItemData(GetHwnd(), ui, pNewItem);
 286         }
 287     }
 288 #endif // wxUSE_OWNER_DRAWN
 289
 290     SetHorizontalExtent();
 291
 292     ShowWindow(GetHwnd(), SW_SHOW);
 293 */
 294 }
 295
 296 int wxListBox::FindString(const wxString& s) const
 297 {
 298 // TODO:
 299 /*
 300     int pos = ListBox_FindStringExact(GetHwnd(), (WPARAM)-1, s);
 301     if (pos == LB_ERR)
 302         return wxNOT_FOUND;
 303     else
 304         return pos;
 305 */
 306     return 0;
 307 }
 308
 309 void wxListBox::Clear()
 310 {
 311 #if wxUSE_OWNER_DRAWN
 312     size_t uiCount = m_aItems.Count();
 313     while ( uiCount-- != 0 ) {
 314         delete m_aItems[uiCount];
 315     }
 316
 317     m_aItems.Clear();
 318 #else // !wxUSE_OWNER_DRAWN
 319     if ( HasClientObjectData() )
 320     {
 321         for ( size_t n = 0; n < (size_t)m_noItems; n++ )
 322         {
 323             delete GetClientObject(n);
 324         }
 325     }
 326 #endif // wxUSE_OWNER_DRAWN/!wxUSE_OWNER_DRAWN
 327 // TODO:
 328 /*
 329
 330     ListBox_ResetContent(GetHwnd());
 331
 332     m_noItems = 0;
 333     SetHorizontalExtent();
 334 */
 335 }
 336
 337 void wxListBox::SetSelection(int N, bool select)
 338 {
 339     wxCHECK_RET( N >= 0 && N < m_noItems,
 340                  wxT("invalid index in wxListBox::SetSelection") );
 341 // TODO:
 342 /*
 343
 344     if ( HasMultipleSelection() )
 345     {
 346         SendMessage(GetHwnd(), LB_SETSEL, select, N);
 347     }
 348     else
 349     {
 350         SendMessage(GetHwnd(), LB_SETCURSEL, select ? N : -1, 0);
 351     }
 352 */
 353 }
 354
 355 bool wxListBox::IsSelected(int N) const
 356 {
 357     wxCHECK_MSG( N >= 0 && N < m_noItems, FALSE,
 358                  wxT("invalid index in wxListBox::Selected") );
 359
 360 //    return SendMessage(GetHwnd(), LB_GETSEL, N, 0) == 0 ? FALSE : TRUE;
 361     return FALSE;
 362 }
 363
 364 wxClientData* wxListBox::DoGetItemClientObject(int n) const
 365 {
 366     return (wxClientData *)DoGetItemClientData(n);
 367 }
 368
 369 void *wxListBox::DoGetItemClientData(int n) const
 370 {
 371     wxCHECK_MSG( n >= 0 && n < m_noItems, NULL,
 372                  wxT("invalid index in wxListBox::GetClientData") );
 373
 374 //    return (void *)SendMessage(GetHwnd(), LB_GETITEMDATA, n, 0);
 375     return NULL;
 376 }
 377
 378 void wxListBox::DoSetItemClientObject(int n, wxClientData* clientData)
 379 {
 380     DoSetItemClientData(n, clientData);
 381 }
 382
 383 void wxListBox::DoSetItemClientData(int n, void *clientData)
 384 {
 385     wxCHECK_RET( n >= 0 && n < m_noItems,
 386                  wxT("invalid index in wxListBox::SetClientData") );
 387
 388 #if wxUSE_OWNER_DRAWN
 389     if ( m_windowStyle & wxLB_OWNERDRAW )
 390     {
 391         // client data must be pointer to wxOwnerDrawn, otherwise we would crash
 392         // in OnMeasure/OnDraw.
 393         wxFAIL_MSG(wxT("Can't use client data with owner-drawn listboxes"));
 394     }
 395 #endif // wxUSE_OWNER_DRAWN
 396
 397 // TODO:
 398 /*
 399     if ( ListBox_SetItemData(GetHwnd(), n, clientData) == LB_ERR )
 400         wxLogDebug(wxT("LB_SETITEMDATA failed"));
 401 */
 402 }
 403
 404 bool wxListBox::HasMultipleSelection() const
 405 {
 406     return (m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED);
 407 }
 408
 409 // Return number of selections and an array of selected integers
 410 int wxListBox::GetSelections(wxArrayInt& aSelections) const
 411 {
 412     aSelections.Empty();
 413
 414 // TODO:
 415 /*
 416     if ( HasMultipleSelection() )
 417     {
 418         int no_sel = ListBox_GetSelCount(GetHwnd());
 419         if (no_sel != 0) {
 420             int *selections = new int[no_sel];
 421             int rc = ListBox_GetSelItems(GetHwnd(), no_sel, selections);
 422
 423             wxCHECK_MSG(rc != LB_ERR, -1, wxT("ListBox_GetSelItems failed"));
 424
 425             aSelections.Alloc(no_sel);
 426             for ( int n = 0; n < no_sel; n++ )
 427                 aSelections.Add(selections[n]);
 428
 429             delete [] selections;
 430         }
 431
 432         return no_sel;
 433     }
 434     else  // single-selection listbox
 435     {
 436         aSelections.Add(ListBox_GetCurSel(GetHwnd()));
 437
 438         return 1;
 439     }
 440 */
 441     return 0;
 442 }
 443
 444 // Get single selection, for single choice list items
 445 int wxListBox::GetSelection() const
 446 {
 447     wxCHECK_MSG( !HasMultipleSelection(),
 448                  -1,
 449                  wxT("GetSelection() can't be used with multiple-selection "
 450                     "listboxes, use GetSelections() instead.") );
 451
 452 //    return ListBox_GetCurSel(GetHwnd());
 453     return 0;
 454 }
 455
 456 // Find string for position
 457 wxString wxListBox::GetString(int N) const
 458 {
 459     wxCHECK_MSG( N >= 0 && N < m_noItems, "",
 460                  wxT("invalid index in wxListBox::GetClientData") );
 461
 462 // TODO:
 463 /*
 464     int len = ListBox_GetTextLen(GetHwnd(), N);
 465
 466     // +1 for terminating NUL
 467     wxString result;
 468     ListBox_GetText(GetHwnd(), N, result.GetWriteBuf(len + 1));
 469     result.UngetWriteBuf();
 470
 471     return result;
 472 */
 473     return((wxString)"");
 474 }
 475
 476 void
 477 wxListBox::DoInsertItems(const wxArrayString& items, int pos)
 478 {
 479     wxCHECK_RET( pos >= 0 && pos <= m_noItems,
 480                  wxT("invalid index in wxListBox::InsertItems") );
 481
 482 // TODO:
 483 /*
 484     int nItems = items.GetCount();
 485     for ( int i = 0; i < nItems; i++ )
 486         ListBox_InsertString(GetHwnd(), i + pos, items[i]);
 487     m_noItems += nItems;
 488
 489     SetHorizontalExtent();
 490 */
 491 }
 492
 493 void wxListBox::SetString(int N, const wxString& s)
 494 {
 495     wxCHECK_RET( N >= 0 && N < m_noItems,
 496                  wxT("invalid index in wxListBox::SetString") );
 497
 498     // remember the state of the item
 499     bool wasSelected = IsSelected(N);
 500
 501     void *oldData = NULL;
 502     wxClientData *oldObjData = NULL;
 503     if ( m_clientDataItemsType == ClientData_Void )
 504         oldData = GetClientData(N);
 505     else if ( m_clientDataItemsType == ClientData_Object )
 506         oldObjData = GetClientObject(N);
 507 // TODO:
 508 /*
 509
 510     // delete and recreate it
 511     SendMessage(GetHwnd(), LB_DELETESTRING, N, 0);
 512
 513     int newN = N;
 514     if ( N == m_noItems - 1 )
 515         newN = -1;
 516
 517     ListBox_InsertString(GetHwnd(), newN, s);
 518
 519     // restore the client data
 520     if ( oldData )
 521         SetClientData(N, oldData);
 522     else if ( oldObjData )
 523         SetClientObject(N, oldObjData);
 524
 525     // we may have lost the selection
 526     if ( wasSelected )
 527         Select(N);
 528
 529 #if wxUSE_OWNER_DRAWN
 530     if ( m_windowStyle & wxLB_OWNERDRAW )
 531         // update item's text
 532         m_aItems[N]->SetName(s);
 533 #endif  //USE_OWNER_DRAWN
 534 */
 535 }
 536
 537 int wxListBox::GetCount() const
 538 {
 539     return m_noItems;
 540 }
 541
 542 // ----------------------------------------------------------------------------
 543 // helpers
 544 // ----------------------------------------------------------------------------
 545
 546 // Windows-specific code to set the horizontal extent of the listbox, if
 547 // necessary. If s is non-NULL, it's used to calculate the horizontal extent.
 548 // Otherwise, all strings are used.
 549 void wxListBox::SetHorizontalExtent(const wxString& s)
 550 {
 551 // TODO:
 552 /*
 553     // Only necessary if we want a horizontal scrollbar
 554     if (!(m_windowStyle & wxHSCROLL))
 555         return;
 556     TEXTMETRIC lpTextMetric;
 557
 558     if ( !s.IsEmpty() )
 559     {
 560         int existingExtent = (int)SendMessage(GetHwnd(), LB_GETHORIZONTALEXTENT, 0, 0L);
 561         HDC dc = GetWindowDC(GetHwnd());
 562         HFONT oldFont = 0;
 563         if (GetFont().Ok() && GetFont().GetResourceHandle())
 564             oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle());
 565
 566         GetTextMetrics(dc, &lpTextMetric);
 567         SIZE extentXY;
 568         ::GetTextExtentPoint(dc, (LPTSTR) (const wxChar *)s, s.Length(), &extentXY);
 569         int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
 570
 571         if (oldFont)
 572             ::SelectObject(dc, oldFont);
 573
 574         ReleaseDC(GetHwnd(), dc);
 575         if (extentX > existingExtent)
 576             SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(extentX), 0L);
 577     }
 578     else
 579     {
 580         int largestExtent = 0;
 581         HDC dc = GetWindowDC(GetHwnd());
 582         HFONT oldFont = 0;
 583         if (GetFont().Ok() && GetFont().GetResourceHandle())
 584             oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle());
 585
 586         GetTextMetrics(dc, &lpTextMetric);
 587         int i;
 588         for (i = 0; i < m_noItems; i++)
 589         {
 590             int len = (int)SendMessage(GetHwnd(), LB_GETTEXT, i, (LONG)wxBuffer);
 591             wxBuffer[len] = 0;
 592             SIZE extentXY;
 593             ::GetTextExtentPoint(dc, (LPTSTR)wxBuffer, len, &extentXY);
 594             int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
 595             if (extentX > largestExtent)
 596                 largestExtent = extentX;
 597         }
 598         if (oldFont)
 599             ::SelectObject(dc, oldFont);
 600
 601         ReleaseDC(GetHwnd(), dc);
 602         SendMessage(GetHwnd(), LB_SETHORIZONTALEXTENT, LOWORD(largestExtent), 0L);
 603     }
 604 */
 605 }
 606
 607 wxSize wxListBox::DoGetBestSize() const
 608 {
 609     // find the widest string
 610     int wLine;
 611     int wListbox = 0;
 612     for ( int i = 0; i < m_noItems; i++ )
 613     {
 614         wxString str(GetString(i));
 615         GetTextExtent(str, &wLine, NULL);
 616         if ( wLine > wListbox )
 617             wListbox = wLine;
 618     }
 619
 620     // give it some reasonable default value if there are no strings in the
 621     // list
 622     if ( wListbox == 0 )
 623         wListbox = 100;
 624
 625     // the listbox should be slightly larger than the widest string
 626     int cx, cy;
 627     wxGetCharSize(GetHWND(), &cx, &cy, (wxFont*)&GetFont());
 628
 629     wListbox += 3*cx;
 630
 631     int hListbox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)*(wxMax(m_noItems, 7));
 632
 633     return wxSize(wListbox, hListbox);
 634 }
 635
 636 // ----------------------------------------------------------------------------
 637 // callbacks
 638 // ----------------------------------------------------------------------------
 639
 640 bool wxListBox::OS2Command(WXUINT param, WXWORD WXUNUSED(id))
 641 {
 642     /*
 643        if (param == LBN_SELCANCEL)
 644        {
 645        event.extraLong = FALSE;
 646        }
 647      */
 648 // TODO:
 649 /*
 650     if (param == LBN_SELCHANGE)
 651     {
 652         wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, m_windowId);
 653         wxArrayInt aSelections;
 654         int count = GetSelections(aSelections);
 655         if ( count > 0 )
 656         {
 657             event.m_commandInt = aSelections[0];
 658             event.m_clientData = GetClientData(event.m_commandInt);
 659             wxString str(GetString(event.m_commandInt));
 660             if (str != wxT(""))
 661             {
 662                 event.m_commandString = str;
 663             }
 664         }
 665         else
 666         {
 667             event.m_commandInt = -1;
 668             event.m_commandString.Empty();
 669         }
 670
 671         event.SetEventObject( this );
 672         ProcessCommand(event);
 673         return TRUE;
 674     }
 675     else if (param == LBN_DBLCLK)
 676     {
 677         wxCommandEvent event(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, m_windowId);
 678         event.SetEventObject( this );
 679         GetEventHandler()->ProcessEvent(event);
 680         return TRUE;
 681     }
 682 */
 683     return FALSE;
 684 }
 685
 686 WXHBRUSH wxListBox::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
 687                                WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
 688 {
 689 // TODO:
 690 /*
 691     if (GetParent()->GetTransparentBackground())
 692         SetBkMode((HDC) pDC, TRANSPARENT);
 693     else
 694         SetBkMode((HDC) pDC, OPAQUE);
 695
 696     ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
 697     ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
 698
 699     wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
 700
 701     // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush
 702     // has a zero usage count.
 703     backgroundBrush->RealizeResource();
 704     return (WXHBRUSH) backgroundBrush->GetResourceHandle();
 705 */
 706     return (WXHBRUSH)0;
 707 }
 708
 709 // ----------------------------------------------------------------------------
 710 // wxCheckListBox support
 711 // ----------------------------------------------------------------------------
 712
 713 #if wxUSE_OWNER_DRAWN
 714
 715 // drawing
 716 // -------
 717
 718 // space beneath/above each row in pixels
 719 // "standard" checklistbox use 1 here, some might prefer 2. 0 is ugly.
 720 #define OWNER_DRAWN_LISTBOX_EXTRA_SPACE    (1)
 721
 722 // the height is the same for all items
 723 // TODO should be changed for LBS_OWNERDRAWVARIABLE style listboxes
 724
 725 // NB: can't forward this to wxListBoxItem because LB_SETITEMDATA
 726 //     message is not yet sent when we get here!
 727 bool wxListBox::OS2OnMeasure(WXMEASUREITEMSTRUCT *item)
 728 {
 729 // TODO:
 730 /*
 731     // only owner-drawn control should receive this message
 732     wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
 733
 734     MEASUREITEMSTRUCT *pStruct = (MEASUREITEMSTRUCT *)item;
 735
 736     wxDC dc;
 737     dc.SetHDC((WXHDC)CreateIC(wxT("DISPLAY"), NULL, NULL, 0));
 738     dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_ANSI_VAR_FONT));
 739
 740     pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE;
 741     pStruct->itemWidth  = dc.GetCharWidth();
 742
 743     return TRUE;
 744 */
 745     return TRUE;
 746 }
 747
 748 // forward the message to the appropriate item
 749 bool wxListBox::OS2OnDraw(WXDRAWITEMSTRUCT *item)
 750 {
 751 // TODO:
 752 /*
 753     // only owner-drawn control should receive this message
 754     wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
 755
 756     DRAWITEMSTRUCT *pStruct = (DRAWITEMSTRUCT *)item;
 757
 758     long data = ListBox_GetItemData(GetHwnd(), pStruct->itemID);
 759
 760     wxCHECK( data && (data != LB_ERR), FALSE );
 761
 762     wxListBoxItem *pItem = (wxListBoxItem *)data;
 763
 764     wxDC dc;
 765     dc.SetHDC((WXHDC)pStruct->hDC, FALSE);
 766     wxRect rect(wxPoint(pStruct->rcItem.left, pStruct->rcItem.top),
 767             wxPoint(pStruct->rcItem.right, pStruct->rcItem.bottom));
 768
 769     return pItem->OnDrawItem(dc, rect,
 770             (wxOwnerDrawn::wxODAction)pStruct->itemAction,
 771             (wxOwnerDrawn::wxODStatus)pStruct->itemState);
 772 */
 773     return FALSE;
 774 }
 775 #endif
 776     // wxUSE_OWNER_DRAWN