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 #endif
  27
  28 #include "wx/msw/private.h"
  29
  30 #include <windows.h>
  31 #include <windowsx.h>
  32
  33 #ifdef __GNUWIN32__
  34 #include <wx/msw/gnuwin32/extra.h>
  35 #endif
  36
  37 #ifdef GetCharWidth
  38 #undef GetCharWidth
  39 #endif
  40
  41 #if USE_OWNER_DRAWN
  42   #include  "wx/ownerdrw.h"
  43 #endif
  44
  45 #include "wx/dynarray.h"
  46 #include "wx/log.h"
  47
  48 #if !USE_SHARED_LIBRARY
  49   IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl)
  50 #endif
  51
  52 // ============================================================================
  53 // list box item declaration and implementation
  54 // ============================================================================
  55
  56 #if USE_OWNER_DRAWN
  57
  58 class wxListBoxItem : public wxOwnerDrawn
  59 {
  60 public:
  61   wxListBoxItem(const wxString& str = "");
  62 };
  63
  64 wxListBoxItem::wxListBoxItem(const wxString& str) : wxOwnerDrawn(str, FALSE)
  65 {
  66   // no bitmaps/checkmarks
  67   SetMarginWidth(0);
  68 }
  69
  70 wxOwnerDrawn *wxListBox::CreateItem(uint n)
  71 {
  72   return new wxListBoxItem();
  73 }
  74
  75 #endif  //USE_OWNER_DRAWN
  76
  77 // ============================================================================
  78 // list box control implementation
  79 // ============================================================================
  80
  81 // this macro is dangerous but still better than tons of (HWND)GetHWND()
  82 #define   hwnd    (HWND)GetHWND()
  83
  84 bool wxListBox::MSWCommand(const WXUINT param, const WXWORD WXUNUSED(id))
  85 {
  86 /*
  87   if (param == LBN_SELCANCEL)
  88   {
  89     event.extraLong = FALSE;
  90   }
  91 */
  92   if (param == LBN_SELCHANGE)
  93   {
  94     wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, m_windowId);
  95     wxArrayInt aSelections;
  96     int count = GetSelections(aSelections);
  97     if ( count > 0 )
  98     {
  99       event.m_commandInt = aSelections[0] ;
 100       event.m_clientData = GetClientData(event.m_commandInt);
 101       wxString str(GetString(event.m_commandInt));
 102       if (str != "")
 103         event.m_commandString = copystring((char *)(const char *)str);
 104     }
 105     else
 106     {
 107       event.m_commandInt = -1 ;
 108       event.m_commandString = copystring("") ;
 109     }
 110
 111     event.SetEventObject( this );
 112     ProcessCommand(event);
 113     if (event.m_commandString)
 114       delete[] event.m_commandString ;
 115     return TRUE;
 116   }
 117   else if (param == LBN_DBLCLK)
 118   {
 119     wxCommandEvent event(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, m_windowId);
 120     event.SetEventObject( this );
 121     if ( !GetEventHandler()->ProcessEvent(event) )
 122     {
 123 #if WXWIN_COMPATIBILITY
 124       wxWindow *parent = (wxWindow *)GetParent();
 125       if (parent)
 126         parent->GetEventHandler()->OnDefaultAction(this);
 127 #endif
 128       return TRUE;
 129     }
 130   }
 131   return FALSE;
 132 }
 133
 134 // Listbox item
 135 wxListBox::wxListBox(void)
 136 {
 137   m_noItems = 0;
 138   m_selected = 0;
 139 }
 140
 141 bool wxListBox::Create(wxWindow *parent, const wxWindowID id,
 142                        const wxPoint& pos,
 143                        const wxSize& size,
 144                        const int n, const wxString choices[],
 145                        const long style,
 146                        const wxValidator& validator,
 147                        const wxString& name)
 148 {
 149   m_noItems = n;
 150   m_hWnd = 0;
 151   m_selected = 0;
 152
 153   SetName(name);
 154   SetValidator(validator);
 155
 156   if (parent) parent->AddChild(this);
 157
 158   wxSystemSettings settings;
 159   SetBackgroundColour(settings.GetSystemColour(wxSYS_COLOUR_WINDOW));
 160   SetForegroundColour(parent->GetDefaultForegroundColour());
 161
 162   m_windowId = ( id == -1 ) ? (int)NewControlId() : id;
 163
 164   int x = pos.x;
 165   int y = pos.y;
 166   int width = size.x;
 167   int height = size.y;
 168   m_windowStyle = style;
 169
 170   DWORD wstyle = WS_VSCROLL | WS_TABSTOP | LBS_NOTIFY | LBS_HASSTRINGS;
 171   if (m_windowStyle & wxLB_MULTIPLE)
 172     wstyle |= LBS_MULTIPLESEL;
 173   else if (m_windowStyle & wxLB_EXTENDED)
 174     wstyle |= LBS_EXTENDEDSEL;
 175
 176   if (m_windowStyle & wxLB_ALWAYS_SB)
 177     wstyle |= LBS_DISABLENOSCROLL ;
 178   if (m_windowStyle & wxLB_HSCROLL)
 179     wstyle |= WS_HSCROLL;
 180   if (m_windowStyle & wxLB_SORT)
 181     wstyle |= LBS_SORT;
 182
 183 #if USE_OWNER_DRAWN
 184     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 185       // we don't support LBS_OWNERDRAWVARIABLE yet
 186       wstyle |= LBS_OWNERDRAWFIXED;
 187     }
 188 #endif
 189   // Without this style, you get unexpected heights, so e.g. constraint layout
 190   // doesn't work properly
 191   wstyle |= LBS_NOINTEGRALHEIGHT;
 192
 193   bool want3D;
 194   WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ;
 195
 196   // Even with extended styles, need to combine with WS_BORDER
 197   // for them to look right.
 198   if ( want3D || (m_windowStyle & wxSIMPLE_BORDER)
 199               || (m_windowStyle & wxRAISED_BORDER)
 200               || (m_windowStyle & wxSUNKEN_BORDER)
 201               || (m_windowStyle & wxDOUBLE_BORDER) ) {
 202     wstyle |= WS_BORDER;
 203   }
 204
 205   HWND wx_list = CreateWindowEx(exStyle, "LISTBOX", NULL,
 206                                 wstyle | WS_CHILD,
 207                                 0, 0, 0, 0,
 208                                 (HWND)parent->GetHWND(), (HMENU)m_windowId,
 209                                 wxGetInstance(), NULL);
 210
 211   m_hWnd = (WXHWND)wx_list;
 212
 213 #if CTL3D
 214   if (want3D)
 215   {
 216     Ctl3dSubclassCtl(wx_list);
 217     m_useCtl3D = TRUE;
 218   }
 219 #endif
 220
 221   // Subclass again to catch messages
 222   SubclassWin((WXHWND)wx_list);
 223
 224   uint ui;
 225   for (ui = 0; ui < (uint)n; ui++) {
 226     SendMessage(wx_list, LB_ADDSTRING, 0, (LPARAM)(const char *)choices[ui]);
 227   }
 228
 229 #if USE_OWNER_DRAWN
 230     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 231       for (ui = 0; ui < (uint)n; ui++) {
 232         // create new item which will process WM_{DRAW|MEASURE}ITEM messages
 233         wxOwnerDrawn *pNewItem = CreateItem(ui);
 234         pNewItem->SetName(choices[ui]);
 235         m_aItems.Add(pNewItem);
 236         ListBox_SetItemData(wx_list, ui, pNewItem);
 237       }
 238     }
 239 #endif
 240
 241   if ((m_windowStyle & wxLB_MULTIPLE) == 0)
 242     SendMessage(wx_list, LB_SETCURSEL, 0, 0);
 243
 244   SetFont(* parent->GetFont());
 245
 246   SetSize(x, y, width, height);
 247
 248   ShowWindow(wx_list, SW_SHOW);
 249
 250   return TRUE;
 251 }
 252
 253 wxListBox::~wxListBox(void)
 254 {
 255 #if USE_OWNER_DRAWN
 256     uint uiCount = m_aItems.Count();
 257     while ( uiCount-- != 0 ) {
 258       delete m_aItems[uiCount];
 259     }
 260 #endif
 261 }
 262
 263 void wxListBox::SetupColours(void)
 264 {
 265   SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
 266   SetForegroundColour(GetParent()->GetDefaultForegroundColour());
 267 }
 268
 269 void wxListBox::SetFirstItem(const int N)
 270 {
 271   SendMessage(hwnd,LB_SETTOPINDEX,(WPARAM)N,(LPARAM)0) ;
 272 }
 273
 274 void wxListBox::SetFirstItem(const wxString& s)
 275 {
 276   int N = FindString(s) ;
 277
 278   if (N>=0)
 279     SetFirstItem(N) ;
 280 }
 281
 282 void wxListBox::Delete(const int N)
 283 {
 284   SendMessage(hwnd, LB_DELETESTRING, N, 0);
 285   m_noItems --;
 286   SetHorizontalExtent("");
 287 }
 288
 289 void wxListBox::Append(const wxString& item)
 290 {
 291   int index = ListBox_AddString(hwnd, item);
 292   m_noItems ++;
 293
 294 #if USE_OWNER_DRAWN
 295     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 296       wxOwnerDrawn *pNewItem = CreateItem(-1); // dummy argument
 297       pNewItem->SetName(item);
 298       m_aItems.Add(pNewItem);
 299       ListBox_SetItemData(hwnd, index, pNewItem);
 300     }
 301 #endif
 302
 303   SetHorizontalExtent(item);
 304 }
 305
 306 void wxListBox::Append(const wxString& item, char *Client_data)
 307 {
 308   int index = ListBox_AddString(hwnd, item);
 309   m_noItems ++;
 310
 311 #if USE_OWNER_DRAWN
 312     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 313       // client data must be pointer to wxOwnerDrawn, otherwise we would crash
 314       // in OnMeasure/OnDraw.
 315       wxFAIL_MSG("Can't use client data with owner-drawn listboxes");
 316     }
 317     else
 318 #endif
 319       ListBox_SetItemData(hwnd, index, Client_data);
 320
 321   SetHorizontalExtent(item);
 322 }
 323
 324 void wxListBox::Set(const int n, const wxString *choices, char** clientData)
 325 {
 326   ShowWindow(hwnd, SW_HIDE);
 327   ListBox_ResetContent(hwnd);
 328   int i;
 329   for (i = 0; i < n; i++)
 330   {
 331     ListBox_AddString(hwnd, choices[i]);
 332     if ( clientData )
 333       ListBox_SetItemData(hwnd, i, clientData[i]);
 334   }
 335   m_noItems = n;
 336
 337 #if USE_OWNER_DRAWN
 338     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 339       // first delete old items
 340       uint ui = m_aItems.Count();
 341       while ( ui-- != 0 ) {
 342         delete m_aItems[ui];
 343       }
 344       m_aItems.Empty();
 345
 346       // then create new ones
 347       for (ui = 0; ui < (uint)n; ui++) {
 348         wxOwnerDrawn *pNewItem = CreateItem(ui);
 349         pNewItem->SetName(choices[ui]);
 350         m_aItems.Add(pNewItem);
 351         ListBox_SetItemData(hwnd, ui, pNewItem);
 352
 353         wxASSERT_MSG(clientData[ui] == NULL,
 354                      "Can't use client data with owner-drawn listboxes");
 355       }
 356     }
 357 #endif
 358
 359   SetHorizontalExtent("");
 360   ShowWindow(hwnd, SW_SHOW);
 361 }
 362
 363 int wxListBox::FindString(const wxString& s) const
 364 {
 365  int pos = ListBox_FindStringExact(hwnd, (WPARAM)-1, s);
 366  if (pos == LB_ERR)
 367    return -1;
 368  else
 369    return pos;
 370 }
 371
 372 void wxListBox::Clear(void)
 373 {
 374   ListBox_ResetContent(hwnd);
 375
 376   m_noItems = 0;
 377   ListBox_GetHorizontalExtent(hwnd);
 378 }
 379
 380 void wxListBox::SetSelection(const int N, const bool select)
 381 {
 382   if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
 383     SendMessage(hwnd, LB_SETSEL, select, N);
 384   else
 385   {
 386     int N1 = N;
 387     if (!select)
 388         N1 = -1;
 389     SendMessage(hwnd, LB_SETCURSEL, N1, 0);
 390   }
 391 }
 392
 393 bool wxListBox::Selected(const int N) const
 394 {
 395   return SendMessage(hwnd, LB_GETSEL, N, 0) == 0 ? FALSE : TRUE;
 396 }
 397
 398 void wxListBox::Deselect(const int N)
 399 {
 400   if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
 401     SendMessage(hwnd, LB_SETSEL, FALSE, N);
 402 }
 403
 404 char *wxListBox::GetClientData(const int N) const
 405 {
 406   return (char *)SendMessage(hwnd, LB_GETITEMDATA, N, 0);
 407 }
 408
 409 void wxListBox::SetClientData(const int N, char *Client_data)
 410 {
 411   if ( ListBox_SetItemData(hwnd, N, Client_data) == LB_ERR )
 412     wxLogDebug("LB_SETITEMDATA failed");
 413 }
 414
 415 // Return number of selections and an array of selected integers
 416 int wxListBox::GetSelections(wxArrayInt& aSelections) const
 417 {
 418   aSelections.Empty();
 419
 420   if ((m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED))
 421   {
 422     int no_sel = ListBox_GetSelCount(hwnd);
 423     if (no_sel != 0) {
 424       int *selections = new int[no_sel];
 425       if ( ListBox_GetSelItems(hwnd, no_sel, selections) == LB_ERR ) {
 426         wxFAIL_MSG("This listbox can't have single-selection style!");
 427       }
 428
 429       aSelections.Alloc(no_sel);
 430       for ( int n = 0; n < no_sel; n++ )
 431         aSelections.Add(selections[n]);
 432
 433       delete [] selections;
 434     }
 435
 436     return no_sel;
 437   }
 438   else  // single-selection listbox
 439   {
 440     aSelections.Add(ListBox_GetCurSel(hwnd));
 441
 442     return 1;
 443   }
 444 }
 445
 446 // Get single selection, for single choice list items
 447 int wxListBox::GetSelection() const
 448 {
 449   wxCHECK_MSG( !(m_windowStyle & wxLB_MULTIPLE) &&
 450                !(m_windowStyle & wxLB_EXTENDED),
 451                -1,
 452                "GetSelection() can't be used with multiple-selection "
 453                "listboxes, use GetSelections() instead." );
 454
 455   return ListBox_GetCurSel(hwnd);
 456 }
 457
 458 // Find string for position
 459 wxString wxListBox::GetString(const int N) const
 460 {
 461   if (N < 0 || N > m_noItems)
 462     return wxString("");
 463
 464   int len = (int)SendMessage(hwnd, LB_GETTEXT, N, (LONG)wxBuffer);
 465   wxBuffer[len] = 0;
 466   return wxString(wxBuffer);
 467 }
 468
 469 void wxListBox::SetSize(const int x, const int y, const int width, const int height, const int sizeFlags)
 470 {
 471   int currentX, currentY;
 472   GetPosition(&currentX, &currentY);
 473
 474   int x1 = x;
 475   int y1 = y;
 476   int w1 = width;
 477   int h1 = height;
 478
 479   if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 480     x1 = currentX;
 481   if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
 482     y1 = currentY;
 483
 484   // If we're prepared to use the existing size, then...
 485   if (width == -1 && height == -1 && ((sizeFlags & wxSIZE_AUTO) != wxSIZE_AUTO))
 486   {
 487     GetSize(&w1, &h1);
 488   }
 489
 490   int cx; // button font dimensions
 491   int cy;
 492
 493   wxGetCharSize(GetHWND(), &cx, &cy,GetFont());
 494
 495   float control_width, control_height, control_x, control_y;
 496
 497   // Deal with default size (using -1 values)
 498   if (w1<=0)
 499     w1 = DEFAULT_ITEM_WIDTH;
 500
 501   if (h1<=0)
 502     h1 = DEFAULT_ITEM_HEIGHT;
 503
 504   control_x = (float)x1;
 505   control_y = (float)y1;
 506   control_width = (float)w1;
 507   control_height = (float)h1;
 508
 509   // Calculations may have made size too small
 510   if (control_height <= 0)
 511     control_height = (float)DEFAULT_ITEM_HEIGHT;
 512
 513   if (control_width <= 0)
 514     control_width = (float)DEFAULT_ITEM_WIDTH;
 515
 516 //  wxDebugMsg("About to set the listbox height to %d", (int)control_height);
 517   MoveWindow(hwnd, (int)control_x, (int)control_y,
 518                    (int)control_width, (int)control_height, TRUE);
 519
 520 /*
 521 #if WXWIN_COMPATIBILITY
 522   GetEventHandler()->OldOnSize(width, height);
 523 #else
 524   wxSizeEvent event(wxSize(width, height), m_windowId);
 525   event.eventObject = this;
 526   GetEventHandler()->ProcessEvent(event);
 527 #endif
 528 */
 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() && GetFont()->GetResourceHandle())
 549       oldFont = ::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() && GetFont()->GetResourceHandle())
 570       oldFont = ::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(const int nItems, const wxString items[], const 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 USE_OWNER_DRAWN
 601     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 602       for ( i = 0; i < nItems; i++ ) {
 603         wxOwnerDrawn *pNewItem = CreateItem((uint)(pos + i));
 604         pNewItem->SetName(items[i]);
 605         m_aItems.Insert(pNewItem, (uint)(pos + i));
 606         ListBox_SetItemData(hwnd, i, pNewItem);
 607       }
 608     }
 609   #endif
 610
 611   SetHorizontalExtent("");
 612 }
 613
 614 void wxListBox::SetString(const int N, const wxString& s)
 615 {
 616   int sel = GetSelection();
 617
 618   char *oldData = (char *)wxListBox::GetClientData(N);
 619
 620   SendMessage(hwnd, LB_DELETESTRING, N, 0);
 621
 622   int newN = N;
 623   if (N == (m_noItems - 1))
 624     newN = -1;
 625
 626   SendMessage(hwnd, LB_INSERTSTRING, newN, (LPARAM) (const char *)s);
 627   if (oldData)
 628     wxListBox::SetClientData(N, oldData);
 629
 630   // Selection may have changed
 631   if (sel >= 0)
 632     SetSelection(sel);
 633
 634 #if       USE_OWNER_DRAWN
 635   if ( m_windowStyle & wxLB_OWNERDRAW )
 636           // update item's text
 637           m_aItems[N]->SetName(s);
 638 #endif  //USE_OWNER_DRAWN
 639 }
 640
 641 int wxListBox::Number (void) const
 642 {
 643   return m_noItems;
 644 }
 645
 646 // For single selection items only
 647 wxString wxListBox::GetStringSelection (void) const
 648 {
 649   int sel = GetSelection ();
 650   if (sel > -1)
 651     return this->GetString (sel);
 652   else
 653     return wxString("");
 654 }
 655
 656 bool wxListBox::SetStringSelection (const wxString& s, const bool flag)
 657 {
 658   int sel = FindString (s);
 659   if (sel > -1)
 660     {
 661       SetSelection (sel, flag);
 662       return TRUE;
 663     }
 664   else
 665     return FALSE;
 666 }
 667
 668 // Is this the right thing? Won't setselection generate a command
 669 // event too? No! It'll just generate a setselection event.
 670 // But we still can't have this being called whenever a real command
 671 // is generated, because it sets the selection, which will already
 672 // have been done! (Unless we have an optional argument for calling
 673 // by the actual window system, or a separate function, ProcessCommand)
 674 void wxListBox::Command (wxCommandEvent & event)
 675 {
 676   if (event.m_extraLong)
 677     SetSelection (event.m_commandInt);
 678   else
 679     {
 680       Deselect (event.m_commandInt);
 681       return;
 682     }
 683   ProcessCommand (event);
 684 }
 685
 686 WXHBRUSH wxListBox::OnCtlColor(const WXHDC pDC, const WXHWND pWnd, const WXUINT nCtlColor,
 687                         WXUINT message, WXWPARAM wParam, WXLPARAM lParam)
 688 {
 689 #if CTL3D
 690   if ( m_useCtl3D )
 691   {
 692     HBRUSH hbrush = Ctl3dCtlColorEx(message, wParam, lParam);
 693     return (WXHBRUSH) hbrush;
 694   }
 695 #endif
 696
 697   if (GetParent()->GetTransparentBackground())
 698     SetBkMode((HDC) pDC, TRANSPARENT);
 699   else
 700     SetBkMode((HDC) pDC, OPAQUE);
 701
 702   ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue()));
 703   ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue()));
 704
 705   wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
 706
 707   // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush
 708   // has a zero usage count.
 709   backgroundBrush->RealizeResource();
 710   return (WXHBRUSH) backgroundBrush->GetResourceHandle();
 711 }
 712
 713 long wxListBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 714 {
 715   switch (nMsg)
 716   {
 717         case WM_INITDIALOG:
 718         case WM_ACTIVATE:
 719         case WM_SETFOCUS:
 720         case WM_KILLFOCUS:
 721         case WM_CREATE:
 722         case WM_PAINT:
 723         case WM_QUERYDRAGICON:
 724         case WM_SIZE:
 725         case WM_RBUTTONDOWN:
 726         case WM_RBUTTONUP:
 727         case WM_RBUTTONDBLCLK:
 728         case WM_MBUTTONDOWN:
 729         case WM_MBUTTONUP:
 730         case WM_MBUTTONDBLCLK:
 731         case WM_LBUTTONDOWN:
 732         case WM_LBUTTONUP:
 733         case WM_LBUTTONDBLCLK:
 734         case WM_MOUSEMOVE:
 735         case WM_DESTROY:
 736         case WM_COMMAND:
 737         case WM_NOTIFY:
 738         case WM_MENUSELECT:
 739         case WM_INITMENUPOPUP:
 740         case WM_DRAWITEM:
 741         case WM_MEASUREITEM:
 742         case WM_KEYDOWN:
 743         case WM_KEYUP:
 744         case WM_CHAR: // Always an ASCII character
 745         case WM_HSCROLL:
 746         case WM_VSCROLL:
 747         case WM_CTLCOLORBTN:
 748         case WM_CTLCOLORDLG:
 749         case WM_CTLCOLORLISTBOX:
 750         case WM_CTLCOLORMSGBOX:
 751         case WM_CTLCOLORSCROLLBAR:
 752         case WM_CTLCOLORSTATIC:
 753         case WM_CTLCOLOREDIT:
 754         case WM_SYSCOLORCHANGE:
 755         case WM_ERASEBKGND:
 756         case WM_MDIACTIVATE:
 757         case WM_DROPFILES:
 758         case WM_QUERYENDSESSION:
 759         case WM_CLOSE:
 760         case WM_GETMINMAXINFO:
 761                 case WM_NCHITTEST:
 762             return MSWDefWindowProc(nMsg, wParam, lParam );
 763     }
 764   return wxControl::MSWWindowProc(nMsg, wParam, lParam);
 765 }
 766
 767 #if USE_OWNER_DRAWN
 768
 769 // drawing
 770 // -------
 771
 772 // space beneath/above each row in pixels
 773 // "standard" checklistbox use 1 here, some might prefer 2. 0 is ugly.
 774 #define OWNER_DRAWN_LISTBOX_EXTRA_SPACE    (1)
 775
 776 // the height is the same for all items
 777 // ## should be changed for LBS_OWNERDRAWVARIABLE style listboxes
 778 //    NB: can't forward this to wxListBoxItem because LB_SETITEMDATA
 779 //        message is not yet sent when we get here!
 780 bool wxListBox::MSWOnMeasure(WXMEASUREITEMSTRUCT *item)
 781 {
 782   // only owner-drawn control should receive this message
 783   wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
 784
 785   MEASUREITEMSTRUCT *pStruct = (MEASUREITEMSTRUCT *)item;
 786
 787   wxDC dc;
 788   dc.SetHDC((WXHDC)CreateIC("DISPLAY", NULL, NULL, 0));
 789   dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_ANSI_VAR_FONT));
 790
 791   pStruct->itemHeight = dc.GetCharHeight() + 2*OWNER_DRAWN_LISTBOX_EXTRA_SPACE;
 792   pStruct->itemWidth  = dc.GetCharWidth();
 793
 794   return TRUE;
 795 }
 796
 797 // forward the message to the appropriate item
 798 bool wxListBox::MSWOnDraw(WXDRAWITEMSTRUCT *item)
 799 {
 800   // only owner-drawn control should receive this message
 801   wxCHECK( ((m_windowStyle & wxLB_OWNERDRAW) == wxLB_OWNERDRAW), FALSE );
 802
 803   DRAWITEMSTRUCT *pStruct = (DRAWITEMSTRUCT *)item;
 804   wxListBoxItem *pItem = (wxListBoxItem *)SendMessage(hwnd, LB_GETITEMDATA,
 805                                                       pStruct->itemID, 0);
 806
 807   wxCHECK( (int)pItem != LB_ERR, FALSE );
 808
 809   wxDC dc;
 810   dc.SetHDC((WXHDC)pStruct->hDC, FALSE);
 811   wxRect rect(pStruct->rcItem.left, pStruct->rcItem.top,
 812               pStruct->rcItem.right - pStruct->rcItem.left,
 813               pStruct->rcItem.bottom - pStruct->rcItem.top);
 814
 815   return pItem->OnDrawItem(dc, rect,
 816                            (wxOwnerDrawn::wxODAction)pStruct->itemAction,
 817                            (wxOwnerDrawn::wxODStatus)pStruct->itemState);
 818 }
 819
 820 #endif
 821   // USE_OWNER_DRAWN