src/msw/listbox.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        listbox.cpp
   3 // Purpose:     wxListBox
   4 // Author:      Julian Smart
   5 // Modified by: Vadim Zeitlin (owner drawn stuff)
   6 // Created:
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows license
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "listbox.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include "wx/listbox.h"
  25 #include "wx/settings.h"
  26 #include "wx/brush.h"
  27 #include "wx/font.h"
  28 #include "wx/dc.h"
  29 #endif
  30
  31 #include "wx/msw/private.h"
  32
  33 #include <windows.h>
  34 #include <windowsx.h>
  35
  36 #ifndef __TWIN32__
  37 #ifdef __GNUWIN32__
  38 #include <wx/msw/gnuwin32/extra.h>
  39 #endif
  40 #endif
  41
  42 #ifdef GetCharWidth
  43 #undef GetCharWidth
  44 #endif
  45
  46 #if wxUSE_OWNER_DRAWN
  47   #include  "wx/ownerdrw.h"
  48 #endif
  49
  50 #include "wx/dynarray.h"
  51 #include "wx/log.h"
  52
  53 #if !USE_SHARED_LIBRARY
  54   IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl)
  55 #endif
  56
  57 // ============================================================================
  58 // list box item declaration and implementation
  59 // ============================================================================
  60
  61 #if wxUSE_OWNER_DRAWN
  62
  63 class wxListBoxItem : public wxOwnerDrawn
  64 {
  65 public:
  66   wxListBoxItem(const wxString& str = "");
  67 };
  68
  69 wxListBoxItem::wxListBoxItem(const wxString& str) : wxOwnerDrawn(str, FALSE)
  70 {
  71   // no bitmaps/checkmarks
  72   SetMarginWidth(0);
  73 }
  74
  75 wxOwnerDrawn *wxListBox::CreateItem(size_t n)
  76 {
  77   return new wxListBoxItem();
  78 }
  79
  80 #endif  //USE_OWNER_DRAWN
  81
  82 // ============================================================================
  83 // list box control implementation
  84 // ============================================================================
  85
  86 // this macro is dangerous but still better than tons of (HWND)GetHWND()
  87 #define   hwnd    (HWND)GetHWND()
  88
  89 bool wxListBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
  90 {
  91 /*
  92   if (param == LBN_SELCANCEL)
  93   {
  94     event.extraLong = FALSE;
  95   }
  96 */
  97   if (param == LBN_SELCHANGE)
  98   {
  99     wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, m_windowId);
 100     wxArrayInt aSelections;
 101     int count = GetSelections(aSelections);
 102     if ( count > 0 )
 103     {
 104       event.m_commandInt = aSelections[0] ;
 105       event.m_clientData = GetClientData(event.m_commandInt);
 106       wxString str(GetString(event.m_commandInt));
 107       if (str != "")
 108         event.m_commandString = copystring((char *)(const char *)str);
 109     }
 110     else
 111     {
 112       event.m_commandInt = -1 ;
 113       event.m_commandString = copystring("") ;
 114     }
 115
 116     event.SetEventObject( this );
 117     ProcessCommand(event);
 118     if (event.m_commandString)
 119       delete[] event.m_commandString ;
 120     return TRUE;
 121   }
 122   else if (param == LBN_DBLCLK)
 123   {
 124     wxCommandEvent event(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, m_windowId);
 125     event.SetEventObject( this );
 126     GetEventHandler()->ProcessEvent(event) ;
 127     return TRUE;
 128 /*
 129     {
 130 #if WXWIN_COMPATIBILITY
 131       wxWindow *parent = (wxWindow *)GetParent();
 132       if (parent)
 133         parent->GetEventHandler()->OnDefaultAction(this);
 134 #endif
 135       return TRUE;
 136     }
 137  */
 138   }
 139   return FALSE;
 140 }
 141
 142 // Listbox item
 143 wxListBox::wxListBox(void)
 144 {
 145   m_noItems = 0;
 146   m_selected = 0;
 147 }
 148
 149 bool wxListBox::Create(wxWindow *parent, wxWindowID id,
 150                        const wxPoint& pos,
 151                        const wxSize& size,
 152                        int n, const wxString choices[],
 153                        long style,
 154                        const wxValidator& validator,
 155                        const wxString& name)
 156 {
 157   m_noItems = 0;
 158   m_hWnd = 0;
 159   m_selected = 0;
 160
 161   SetName(name);
 162   SetValidator(validator);
 163
 164   if (parent) parent->AddChild(this);
 165
 166   wxSystemSettings settings;
 167   SetBackgroundColour(settings.GetSystemColour(wxSYS_COLOUR_WINDOW));
 168   SetForegroundColour(parent->GetForegroundColour());
 169
 170   m_windowId = ( id == -1 ) ? (int)NewControlId() : id;
 171
 172   int x = pos.x;
 173   int y = pos.y;
 174   int width = size.x;
 175   int height = size.y;
 176   m_windowStyle = style;
 177
 178   DWORD wstyle = WS_VSCROLL | WS_TABSTOP | LBS_NOTIFY | LBS_HASSTRINGS;
 179   if (m_windowStyle & wxLB_MULTIPLE)
 180     wstyle |= LBS_MULTIPLESEL;
 181   else if (m_windowStyle & wxLB_EXTENDED)
 182     wstyle |= LBS_EXTENDEDSEL;
 183
 184   if (m_windowStyle & wxLB_ALWAYS_SB)
 185     wstyle |= LBS_DISABLENOSCROLL ;
 186   if (m_windowStyle & wxLB_HSCROLL)
 187     wstyle |= WS_HSCROLL;
 188   if (m_windowStyle & wxLB_SORT)
 189     wstyle |= LBS_SORT;
 190
 191 #if wxUSE_OWNER_DRAWN
 192     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 193       // we don't support LBS_OWNERDRAWVARIABLE yet
 194       wstyle |= LBS_OWNERDRAWFIXED;
 195     }
 196 #endif
 197   // Without this style, you get unexpected heights, so e.g. constraint layout
 198   // doesn't work properly
 199   wstyle |= LBS_NOINTEGRALHEIGHT;
 200
 201   bool want3D;
 202   WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ;
 203
 204   // Even with extended styles, need to combine with WS_BORDER
 205   // for them to look right.
 206   if ( want3D || wxStyleHasBorder(m_windowStyle) )
 207   {
 208     wstyle |= WS_BORDER;
 209   }
 210
 211   m_hWnd = (WXHWND)::CreateWindowEx(exStyle, "LISTBOX", NULL,
 212                                 wstyle | WS_CHILD,
 213                                 0, 0, 0, 0,
 214                                 (HWND)parent->GetHWND(), (HMENU)m_windowId,
 215                                 wxGetInstance(), NULL);
 216
 217   wxCHECK_MSG( m_hWnd, FALSE, "Failed to create listbox" );
 218
 219 #if wxUSE_CTL3D
 220   if (want3D)
 221   {
 222     Ctl3dSubclassCtl(hwnd);
 223     m_useCtl3D = TRUE;
 224   }
 225 #endif
 226
 227   // Subclass again to catch messages
 228   SubclassWin(m_hWnd);
 229
 230   size_t ui;
 231   for (ui = 0; ui < (size_t)n; ui++) {
 232     Append(choices[ui]);
 233   }
 234
 235   /* Not needed -- done in Append
 236 #if wxUSE_OWNER_DRAWN
 237     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 238       for (ui = 0; ui < (size_t)n; ui++) {
 239         // create new item which will process WM_{DRAW|MEASURE}ITEM messages
 240         wxOwnerDrawn *pNewItem = CreateItem(ui);
 241         pNewItem->SetName(choices[ui]);
 242         m_aItems.Add(pNewItem);
 243         ListBox_SetItemData(hwnd, ui, pNewItem);
 244       }
 245     }
 246 #endif
 247 */
 248
 249   if ( (m_windowStyle & wxLB_MULTIPLE) == 0 )
 250     SendMessage(hwnd, LB_SETCURSEL, 0, 0);
 251
 252   SetFont(parent->GetFont());
 253
 254   SetSize(x, y, width, height);
 255
 256   Show(TRUE);
 257
 258   return TRUE;
 259 }
 260
 261 wxListBox::~wxListBox(void)
 262 {
 263 #if wxUSE_OWNER_DRAWN
 264     size_t uiCount = m_aItems.Count();
 265     while ( uiCount-- != 0 ) {
 266       delete m_aItems[uiCount];
 267     }
 268 #endif
 269 }
 270
 271 void wxListBox::SetupColours(void)
 272 {
 273   SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
 274   SetForegroundColour(GetParent()->GetForegroundColour());
 275 }
 276
 277 void wxListBox::SetFirstItem(int N)
 278 {
 279   SendMessage(hwnd,LB_SETTOPINDEX,(WPARAM)N,(LPARAM)0) ;
 280 }
 281
 282 void wxListBox::SetFirstItem(const wxString& s)
 283 {
 284   int N = FindString(s) ;
 285
 286   if (N>=0)
 287     SetFirstItem(N) ;
 288 }
 289
 290 void wxListBox::Delete(int N)
 291 {
 292   SendMessage(hwnd, LB_DELETESTRING, N, 0);
 293   m_noItems --;
 294   SetHorizontalExtent("");
 295 }
 296
 297 void wxListBox::Append(const wxString& item)
 298 {
 299   int index = ListBox_AddString(hwnd, item);
 300   m_noItems ++;
 301
 302 #if wxUSE_OWNER_DRAWN
 303     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 304       wxOwnerDrawn *pNewItem = CreateItem(index); // dummy argument
 305       pNewItem->SetName(item);
 306       m_aItems.Add(pNewItem);
 307       ListBox_SetItemData(hwnd, index, pNewItem);
 308     }
 309 #endif
 310
 311   SetHorizontalExtent(item);
 312 }
 313
 314 void wxListBox::Append(const wxString& item, char *Client_data)
 315 {
 316   int index = ListBox_AddString(hwnd, item);
 317   m_noItems ++;
 318
 319 #if wxUSE_OWNER_DRAWN
 320     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 321       // client data must be pointer to wxOwnerDrawn, otherwise we would crash
 322       // in OnMeasure/OnDraw.
 323       wxFAIL_MSG("Can't use client data with owner-drawn listboxes");
 324     }
 325     else
 326 #endif
 327       ListBox_SetItemData(hwnd, index, Client_data);
 328
 329   SetHorizontalExtent(item);
 330 }
 331
 332 void wxListBox::Set(int n, const wxString *choices, char** clientData)
 333 {
 334   ShowWindow(hwnd, SW_HIDE);
 335   ListBox_ResetContent(hwnd);
 336   int i;
 337   for (i = 0; i < n; i++)
 338   {
 339     ListBox_AddString(hwnd, choices[i]);
 340     if ( clientData )
 341       ListBox_SetItemData(hwnd, i, clientData[i]);
 342   }
 343   m_noItems = n;
 344
 345 #if wxUSE_OWNER_DRAWN
 346     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 347       // first delete old items
 348       size_t ui = m_aItems.Count();
 349       while ( ui-- != 0 ) {
 350         delete m_aItems[ui];
 351       }
 352       m_aItems.Empty();
 353
 354       // then create new ones
 355       for (ui = 0; ui < (size_t)n; ui++) {
 356         wxOwnerDrawn *pNewItem = CreateItem(ui);
 357         pNewItem->SetName(choices[ui]);
 358         m_aItems.Add(pNewItem);
 359         ListBox_SetItemData(hwnd, ui, pNewItem);
 360
 361         wxASSERT_MSG(clientData[ui] == NULL,
 362                      "Can't use client data with owner-drawn listboxes");
 363       }
 364     }
 365 #endif
 366
 367   SetHorizontalExtent("");
 368   ShowWindow(hwnd, SW_SHOW);
 369 }
 370
 371 int wxListBox::FindString(const wxString& s) const
 372 {
 373  int pos = ListBox_FindStringExact(hwnd, (WPARAM)-1, s);
 374  if (pos == LB_ERR)
 375    return -1;
 376  else
 377    return pos;
 378 }
 379
 380 void wxListBox::Clear(void)
 381 {
 382   ListBox_ResetContent(hwnd);
 383
 384   m_noItems = 0;
 385   ListBox_GetHorizontalExtent(hwnd);
 386 }
 387
 388 void wxListBox::SetSelection(int N, bool select)
 389 {
 390   if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
 391     SendMessage(hwnd, LB_SETSEL, select, N);
 392   else
 393   {
 394     int N1 = N;
 395     if (!select)
 396         N1 = -1;
 397     SendMessage(hwnd, LB_SETCURSEL, N1, 0);
 398   }
 399 }
 400
 401 bool wxListBox::Selected(int N) const
 402 {
 403   return SendMessage(hwnd, LB_GETSEL, N, 0) == 0 ? FALSE : TRUE;
 404 }
 405
 406 void wxListBox::Deselect(int N)
 407 {
 408   if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
 409     SendMessage(hwnd, LB_SETSEL, FALSE, N);
 410 }
 411
 412 char *wxListBox::GetClientData(int N) const
 413 {
 414   return (char *)SendMessage(hwnd, LB_GETITEMDATA, N, 0);
 415 }
 416
 417 void wxListBox::SetClientData(int N, char *Client_data)
 418 {
 419   if ( ListBox_SetItemData(hwnd, N, Client_data) == LB_ERR )
 420     wxLogDebug("LB_SETITEMDATA failed");
 421 }
 422
 423 // Return number of selections and an array of selected integers
 424 int wxListBox::GetSelections(wxArrayInt& aSelections) const
 425 {
 426   aSelections.Empty();
 427
 428   if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
 429   {
 430     int no_sel = ListBox_GetSelCount(hwnd);
 431     if (no_sel != 0) {
 432       int *selections = new int[no_sel];
 433       if ( ListBox_GetSelItems(hwnd, no_sel, selections) == LB_ERR ) {
 434         wxFAIL_MSG("This listbox can't have single-selection style!");
 435       }
 436
 437       aSelections.Alloc(no_sel);
 438       for ( int n = 0; n < no_sel; n++ )
 439         aSelections.Add(selections[n]);
 440
 441       delete [] selections;
 442     }
 443
 444     return no_sel;
 445   }
 446   else  // single-selection listbox
 447   {
 448     aSelections.Add(ListBox_GetCurSel(hwnd));
 449
 450     return 1;
 451   }
 452 }
 453
 454 // Get single selection, for single choice list items
 455 int wxListBox::GetSelection() const
 456 {
 457   wxCHECK_MSG( !(m_windowStyle & wxLB_MULTIPLE) &&
 458                !(m_windowStyle & wxLB_EXTENDED),
 459                -1,
 460                "GetSelection() can't be used with multiple-selection "
 461                "listboxes, use GetSelections() instead." );
 462
 463   return ListBox_GetCurSel(hwnd);
 464 }
 465
 466 // Find string for position
 467 wxString wxListBox::GetString(int N) const
 468 {
 469   if (N < 0 || N > m_noItems)
 470     return wxString("");
 471
 472   int len = (int)SendMessage(hwnd, LB_GETTEXT, N, (LONG)wxBuffer);
 473   wxBuffer[len] = 0;
 474   return wxString(wxBuffer);
 475 }
 476
 477 void wxListBox::SetSize(int x, int y, int width, int height, int sizeFlags)
 478 {
 479   int currentX, currentY;
 480   GetPosition(&currentX, &currentY);
 481
 482   int x1 = x;
 483   int y1 = y;
 484   int w1 = width;
 485   int h1 = height;
 486
 487   if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 488     x1 = currentX;
 489   if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 490     y1 = currentY;
 491
 492   AdjustForParentClientOrigin(x1, y1, sizeFlags);
 493
 494   // If we're prepared to use the existing size, then...
 495   if (width == -1 && height == -1 && ((sizeFlags & wxSIZE_AUTO) != wxSIZE_AUTO))
 496   {
 497     GetSize(&w1, &h1);
 498   }
 499
 500   int cx; // button font dimensions
 501   int cy;
 502
 503   wxGetCharSize(GetHWND(), &cx, &cy, & this->GetFont());
 504
 505   float control_width, control_height, control_x, control_y;
 506
 507   // Deal with default size (using -1 values)
 508   if (w1<=0)
 509     w1 = DEFAULT_ITEM_WIDTH;
 510
 511   if (h1<=0)
 512     h1 = DEFAULT_ITEM_HEIGHT;
 513
 514   control_x = (float)x1;
 515   control_y = (float)y1;
 516   control_width = (float)w1;
 517   control_height = (float)h1;
 518
 519   // Calculations may have made size too small
 520   if (control_height <= 0)
 521     control_height = (float)DEFAULT_ITEM_HEIGHT;
 522
 523   if (control_width <= 0)
 524     control_width = (float)DEFAULT_ITEM_WIDTH;
 525
 526 //  wxDebugMsg("About to set the listbox height to %d", (int)control_height);
 527   MoveWindow(hwnd, (int)control_x, (int)control_y,
 528                    (int)control_width, (int)control_height, TRUE);
 529
 530 }
 531
 532 // Windows-specific code to set the horizontal extent of
 533 // the listbox, if necessary. If s is non-NULL, it's
 534 // used to calculate the horizontal extent.
 535 // Otherwise, all strings are used.
 536 void wxListBox::SetHorizontalExtent(const wxString& s)
 537 {
 538   // Only necessary if we want a horizontal scrollbar
 539   if (!(m_windowStyle & wxHSCROLL))
 540     return;
 541   TEXTMETRIC lpTextMetric;
 542
 543   if (s != "")
 544   {
 545     int existingExtent = (int)SendMessage(hwnd, LB_GETHORIZONTALEXTENT, 0, 0L);
 546     HDC dc = GetWindowDC(hwnd);
 547     HFONT oldFont = 0;
 548     if (GetFont().Ok() && GetFont().GetResourceHandle())
 549       oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle());
 550
 551     GetTextMetrics(dc, &lpTextMetric);
 552     SIZE extentXY;
 553     ::GetTextExtentPoint(dc, (LPSTR) (const char *)s, s.Length(), &extentXY);
 554     int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
 555
 556     if (oldFont)
 557       ::SelectObject(dc, oldFont);
 558
 559     ReleaseDC(hwnd, dc);
 560     if (extentX > existingExtent)
 561       SendMessage(hwnd, LB_SETHORIZONTALEXTENT, LOWORD(extentX), 0L);
 562     return;
 563   }
 564   else
 565   {
 566     int largestExtent = 0;
 567     HDC dc = GetWindowDC(hwnd);
 568     HFONT oldFont = 0;
 569     if (GetFont().Ok() && GetFont().GetResourceHandle())
 570       oldFont = (HFONT) ::SelectObject(dc, (HFONT) GetFont().GetResourceHandle());
 571
 572     GetTextMetrics(dc, &lpTextMetric);
 573     int i;
 574     for (i = 0; i < m_noItems; i++)
 575     {
 576       int len = (int)SendMessage(hwnd, LB_GETTEXT, i, (LONG)wxBuffer);
 577       wxBuffer[len] = 0;
 578       SIZE extentXY;
 579       ::GetTextExtentPoint(dc, (LPSTR)wxBuffer, len, &extentXY);
 580       int extentX = (int)(extentXY.cx + lpTextMetric.tmAveCharWidth);
 581       if (extentX > largestExtent)
 582         largestExtent = extentX;
 583     }
 584     if (oldFont)
 585       ::SelectObject(dc, oldFont);
 586
 587     ReleaseDC(hwnd, dc);
 588     SendMessage(hwnd, LB_SETHORIZONTALEXTENT, LOWORD(largestExtent), 0L);
 589   }
 590 }
 591
 592 void
 593 wxListBox::InsertItems(int nItems, const wxString items[], int pos)
 594 {
 595   int i;
 596   for (i = 0; i < nItems; i++)
 597     ListBox_InsertString(hwnd, i + pos, items[i]);
 598   m_noItems += nItems;
 599
 600   #if wxUSE_OWNER_DRAWN
 601     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 602       for ( i = 0; i < nItems; i++ ) {
 603         wxOwnerDrawn *pNewItem = CreateItem((size_t)(pos + i));
 604         pNewItem->SetName(items[i]);
 605         m_aItems.Insert(pNewItem, (size_t)(pos + i));
 606         ListBox_SetItemData(hwnd, i, pNewItem);
 607       }
 608     }
 609   #endif
 610
 611   SetHorizontalExtent("");
 612 }
 613
 614 void wxListBox::SetString(int N, const wxString& s)
 615 {
 616   int sel = -1;
 617   if (!(m_windowStyle & wxLB_MULTIPLE) && !(m_windowStyle & wxLB_EXTENDED))
 618     sel = GetSelection();
 619
 620   char *oldData = (char *)wxListBox::GetClientData(N);
 621
 622   SendMessage(hwnd, LB_DELETESTRING, N, 0);
 623
 624   int newN = N;
 625   if (N == (m_noItems - 1))
 626     newN = -1;
 627
 628   SendMessage(hwnd, LB_INSERTSTRING, newN, (LPARAM) (const char *)s);
 629   if (oldData)
 630     wxListBox::SetClientData(N, oldData);
 631
 632   // Selection may have changed
 633   if (sel >= 0)
 634     SetSelection(sel);
 635
 636 #if       wxUSE_OWNER_DRAWN
 637   if ( m_windowStyle & wxLB_OWNERDRAW )
 638           // update item's text
 639           m_aItems[N]->SetName(s);
 640 #endif  //USE_OWNER_DRAWN
 641 }
 642
 643 int wxListBox::Number (void) const
 644 {
 645   return m_noItems;
 646 }
 647
 648 // For single selection items only
 649 wxString wxListBox::GetStringSelection (void) const
 650 {
 651   int sel = GetSelection ();
 652   if (sel > -1)
 653     return this->GetString (sel);
 654   else
 655     return wxString("");
 656 }
 657
 658 bool wxListBox::SetStringSelection (const wxString& s, bool flag)
 659 {
 660   int sel = FindString (s);
 661   if (sel > -1)
 662     {
 663       SetSelection (sel, flag);
 664       return TRUE;
 665     }
 666   else
 667     return FALSE;
 668 }
 669
 670 // Is this the right thing? Won't setselection generate a command
 671 // event too? No! It'll just generate a setselection event.
 672 // But we still can't have this being called whenever a real command
 673 // is generated, because it sets the selection, which will already
 674 // have been done! (Unless we have an optional argument for calling
 675 // by the actual window system, or a separate function, ProcessCommand)
 676 void wxListBox::Command (wxCommandEvent & event)
 677 {
 678   if (event.m_extraLong)
 679     SetSelection (event.m_commandInt);
 680   else
 681     {
 682       Deselect (event.m_commandInt);
 683       return;
 684     }
 685   ProcessCommand (event);
 686 }
 687
 688 WXHBRUSH wxListBox::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor,
 689                         WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
 690 {
 691 #if wxUSE_CTL3D
 692   if ( m_useCtl3D )
 693   {
 694     HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
 695     return (WXHBRUSH) hbrush;
 696   }
 697 #endif
 698
 699   if (GetParent()->GetTransparentBackground())
 700     SetBkMode((HDC) pDC, TRANSPARENT);
 701   else
 702     SetBkMode((HDC) pDC, OPAQUE);
 703
 704   ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
 705   ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
 706
 707   wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
 708
 709   // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush
 710   // has a zero usage count.
 711   backgroundBrush->RealizeResource();
 712   return (WXHBRUSH) backgroundBrush->GetResourceHandle();
 713 }
 714
 715 long wxListBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 716 {
 717 #if 0
 718   switch (nMsg)
 719   {
 720         case WM_INITDIALOG:
 721         case WM_ACTIVATE:
 722         case WM_SETFOCUS:
 723         case WM_KILLFOCUS:
 724         case WM_CREATE:
 725         case WM_PAINT:
 726         case WM_QUERYDRAGICON:
 727         case WM_SIZE:
 728         case WM_RBUTTONDOWN:
 729         case WM_RBUTTONUP:
 730         case WM_RBUTTONDBLCLK:
 731         case WM_MBUTTONDOWN:
 732         case WM_MBUTTONUP:
 733         case WM_MBUTTONDBLCLK:
 734         case WM_LBUTTONDOWN:
 735         case WM_LBUTTONUP:
 736         case WM_LBUTTONDBLCLK:
 737         case WM_MOUSEMOVE:
 738         case WM_COMMAND:
 739         case WM_NOTIFY:
 740         case WM_DESTROY:
 741         case WM_MENUSELECT:
 742         case WM_INITMENUPOPUP:
 743         case WM_DRAWITEM:
 744         case WM_MEASUREITEM:
 745         case WM_KEYDOWN:
 746         case WM_KEYUP:
 747         case WM_CHAR: // Always an ASCII character
 748         case WM_HSCROLL:
 749         case WM_VSCROLL:
 750         case WM_CTLCOLORBTN:
 751         case WM_CTLCOLORDLG:
 752         case WM_CTLCOLORLISTBOX:
 753         case WM_CTLCOLORMSGBOX:
 754         case WM_CTLCOLORSCROLLBAR:
 755         case WM_CTLCOLORSTATIC:
 756         case WM_CTLCOLOREDIT:
 757         case WM_SYSCOLORCHANGE:
 758         case WM_ERASEBKGND:
 759         case WM_MDIACTIVATE:
 760         case WM_DROPFILES:
 761         case WM_QUERYENDSESSION:
 762         case WM_CLOSE:
 763         case WM_GETMINMAXINFO:
 764                 case WM_NCHITTEST:
 765             return MSWDefWindowProc(nMsg, wParam, lParam );
 766     }
 767 #endif
 768
 769   return wxControl::MSWWindowProc(nMsg, wParam, lParam);
 770 }
 771
 772 #if wxUSE_OWNER_DRAWN
 773
 774 // drawing
 775 // -------
 776
 777 // space beneath/above each row in pixels
 778 // "standard" checklistbox use 1 here, some might prefer 2. 0 is ugly.
 779 #define OWNER_DRAWN_LISTBOX_EXTRA_SPACE    (1)
 780
 781 // the height is the same for all items
 782 // ## should be changed for LBS_OWNERDRAWVARIABLE style listboxes
 783 //    NB: can't forward this to wxListBoxItem because LB_SETITEMDATA
 784 //        message is not yet sent when we get here!
 785 bool wxListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item)
 786 {
 787   // only owner-drawn control should receive this message
 788   wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
 789
 790   MEASUREITEMSTRUCT *pStruct = (MEASUREITEMSTRUCT *)item;
 791
 792   wxDC dc;
 793   dc.SetHDC((WXHDC)CreateIC("DISPLAY", NULL, NULL, 0));
 794   dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_ANSI_VAR_FONT));
 795
 796   pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE;
 797   pStruct->itemWidth  = dc.GetCharWidth();
 798
 799   return TRUE;
 800 }
 801
 802 // forward the message to the appropriate item
 803 bool wxListBox::MSWOnDraw(WXDRAWITEMSTRUCT *item)
 804 {
 805   // only owner-drawn control should receive this message
 806   wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
 807
 808   DRAWITEMSTRUCT *pStruct = (DRAWITEMSTRUCT *)item;
 809   wxListBoxItem *pItem = (wxListBoxItem *)SendMessage(hwnd, LB_GETITEMDATA,
 810                                                       pStruct->itemID, 0);
 811
 812   wxCHECK( (int)pItem != LB_ERR, FALSE );
 813
 814   wxDC dc;
 815   dc.SetHDC((WXHDC)pStruct->hDC, FALSE);
 816   wxRect rect(pStruct->rcItem.left, pStruct->rcItem.top,
 817               pStruct->rcItem.right - pStruct->rcItem.left,
 818               pStruct->rcItem.bottom - pStruct->rcItem.top);
 819
 820   return pItem->OnDrawItem(dc, rect,
 821                            (wxOwnerDrawn::wxODAction)pStruct->itemAction,
 822                            (wxOwnerDrawn::wxODStatus)pStruct->itemState);
 823 }
 824
 825 #endif
 826   // wxUSE_OWNER_DRAWN