src/generic/odcombo.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/odcombo.cpp
   3 // Purpose:     wxOwnerDrawnComboBox, wxVListBoxComboPopup
   4 // Author:      Jaakko Salli
   5 // Modified by:
   6 // Created:     Apr-30-2006
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2005 Jaakko Salli
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #if wxUSE_ODCOMBOBOX
  27
  28 #include "wx/odcombo.h"
  29
  30 #ifndef WX_PRECOMP
  31     #include "wx/log.h"
  32     #include "wx/combobox.h"
  33     #include "wx/dcclient.h"
  34     #include "wx/settings.h"
  35     #include "wx/dialog.h"
  36 #endif
  37
  38 #include "wx/combo.h"
  39
  40 // ============================================================================
  41 // implementation
  42 // ============================================================================
  43
  44 // time in milliseconds before partial completion buffer drops
  45 #define wxODCB_PARTIAL_COMPLETION_TIME 1000
  46
  47 // ----------------------------------------------------------------------------
  48 // wxVListBoxComboPopup is a wxVListBox customized to act as a popup control
  49 //
  50 // ----------------------------------------------------------------------------
  51
  52
  53 BEGIN_EVENT_TABLE(wxVListBoxComboPopup, wxVListBox)
  54     EVT_MOTION(wxVListBoxComboPopup::OnMouseMove)
  55     EVT_KEY_DOWN(wxVListBoxComboPopup::OnKey)
  56     EVT_LEFT_UP(wxVListBoxComboPopup::OnLeftClick)
  57 END_EVENT_TABLE()
  58
  59
  60 void wxVListBoxComboPopup::Init()
  61 {
  62     m_widestWidth = 0;
  63     m_widestItem = -1;
  64     m_widthsDirty = false;
  65     m_findWidest = false;
  66     m_itemHeight = 0;
  67     m_value = -1;
  68     m_itemHover = -1;
  69     m_clientDataItemsType = wxClientData_None;
  70     m_partialCompletionString = wxEmptyString;
  71 }
  72
  73 bool wxVListBoxComboPopup::Create(wxWindow* parent)
  74 {
  75     if ( !wxVListBox::Create(parent,
  76                              wxID_ANY,
  77                              wxDefaultPosition,
  78                              wxDefaultSize,
  79                              wxBORDER_SIMPLE | wxLB_INT_HEIGHT | wxWANTS_CHARS) )
  80         return false;
  81
  82     m_useFont = m_combo->GetFont();
  83
  84     wxVListBox::SetItemCount(m_strings.GetCount());
  85
  86     // TODO: Move this to SetFont
  87     m_itemHeight = GetCharHeight() + 0;
  88
  89     return true;
  90 }
  91
  92 wxVListBoxComboPopup::~wxVListBoxComboPopup()
  93 {
  94     Clear();
  95 }
  96
  97 bool wxVListBoxComboPopup::LazyCreate()
  98 {
  99     // NB: There is a bug with wxVListBox that can be avoided by creating
 100     //     it later (bug causes empty space to be shown if initial selection
 101     //     is at the end of a list longer than the control can show at once).
 102     return true;
 103 }
 104
 105 // paint the control itself
 106 void wxVListBoxComboPopup::PaintComboControl( wxDC& dc, const wxRect& rect )
 107 {
 108     if ( !(m_combo->GetWindowStyle() & wxODCB_STD_CONTROL_PAINT) )
 109     {
 110         OnDrawBg(dc,rect,m_value,wxODCB_PAINTING_CONTROL);
 111         if ( m_value >= 0 )
 112         {
 113             OnDrawItem(dc,rect,m_value,wxODCB_PAINTING_CONTROL);
 114             return;
 115         }
 116     }
 117
 118     wxComboPopup::PaintComboControl(dc,rect);
 119 }
 120
 121 void wxVListBoxComboPopup::OnDrawItem(wxDC& dc, const wxRect& rect, size_t n) const
 122 {
 123     // TODO: Maybe this code could be moved to wxVListBox::OnPaint?
 124     dc.SetFont(m_useFont);
 125
 126     // Set correct text colour for selected items
 127     if ( wxVListBox::GetSelection() == (int) n )
 128         dc.SetTextForeground( wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT) );
 129     else
 130         dc.SetTextForeground( wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT) );
 131
 132     OnDrawItem(dc,rect,(int)n,0);
 133 }
 134
 135 wxCoord wxVListBoxComboPopup::OnMeasureItem(size_t n) const
 136 {
 137     wxOwnerDrawnComboBox* combo = (wxOwnerDrawnComboBox*) m_combo;
 138
 139     wxASSERT_MSG( combo->IsKindOf(CLASSINFO(wxOwnerDrawnComboBox)),
 140                   wxT("you must subclass wxVListBoxComboPopup for drawing and measuring methods") );
 141
 142     wxCoord h = combo->OnMeasureItem(n);
 143     if ( h < 0 )
 144         h = m_itemHeight;
 145     return h;
 146 }
 147
 148 wxCoord wxVListBoxComboPopup::OnMeasureItemWidth(size_t n) const
 149 {
 150     wxOwnerDrawnComboBox* combo = (wxOwnerDrawnComboBox*) m_combo;
 151
 152     wxASSERT_MSG( combo->IsKindOf(CLASSINFO(wxOwnerDrawnComboBox)),
 153                   wxT("you must subclass wxVListBoxComboPopup for drawing and measuring methods") );
 154
 155     return combo->OnMeasureItemWidth(n);
 156 }
 157
 158 void wxVListBoxComboPopup::OnDrawBg( wxDC& dc,
 159                                      const wxRect& rect,
 160                                      int item,
 161                                      int flags ) const
 162 {
 163     wxOwnerDrawnComboBox* combo = (wxOwnerDrawnComboBox*) m_combo;
 164
 165     wxASSERT_MSG( combo->IsKindOf(CLASSINFO(wxOwnerDrawnComboBox)),
 166                   wxT("you must subclass wxVListBoxComboPopup for drawing and measuring methods") );
 167
 168     combo->OnDrawBackground(dc,rect,item,flags);
 169 }
 170
 171 void wxVListBoxComboPopup::OnDrawBackground(wxDC& dc, const wxRect& rect, size_t n) const
 172 {
 173     OnDrawBg(dc,rect,(int)n,0);
 174 }
 175
 176 // This is called from wxVListBoxComboPopup::OnDrawItem, with text colour and font prepared
 177 void wxVListBoxComboPopup::OnDrawItem( wxDC& dc, const wxRect& rect, int item, int flags ) const
 178 {
 179     wxOwnerDrawnComboBox* combo = (wxOwnerDrawnComboBox*) m_combo;
 180
 181     wxASSERT_MSG( combo->IsKindOf(CLASSINFO(wxOwnerDrawnComboBox)),
 182                   wxT("you must subclass wxVListBoxComboPopup for drawing and measuring methods") );
 183
 184     combo->OnDrawItem(dc,rect,item,flags);
 185 }
 186
 187 void wxVListBoxComboPopup::DismissWithEvent()
 188 {
 189     StopPartialCompletion();
 190
 191     int selection = wxVListBox::GetSelection();
 192
 193     Dismiss();
 194
 195     wxString valStr;
 196     if ( selection != wxNOT_FOUND )
 197         valStr = m_strings[selection];
 198     else
 199         valStr = wxEmptyString;
 200
 201     m_value = selection;
 202
 203     if ( valStr != m_combo->GetValue() )
 204         m_combo->SetValue(valStr);
 205
 206     SendComboBoxEvent(selection);
 207 }
 208
 209 void wxVListBoxComboPopup::SendComboBoxEvent( int selection )
 210 {
 211     wxCommandEvent evt(wxEVT_COMMAND_COMBOBOX_SELECTED,m_combo->GetId());
 212
 213     evt.SetEventObject(m_combo);
 214
 215     evt.SetInt(selection);
 216
 217     // Set client data, if any
 218     if ( selection >= 0 && (int)m_clientDatas.GetCount() > selection )
 219     {
 220         void* clientData = m_clientDatas[selection];
 221         if ( m_clientDataItemsType == wxClientData_Object )
 222             evt.SetClientObject((wxClientData*)clientData);
 223         else
 224             evt.SetClientData(clientData);
 225     }
 226
 227     m_combo->GetEventHandler()->AddPendingEvent(evt);
 228 }
 229
 230 // returns true if key was consumed
 231 bool wxVListBoxComboPopup::HandleKey( int keycode, bool saturate, wxChar unicode )
 232 {
 233     int value = m_value;
 234     int itemCount = GetCount();
 235     int comboStyle = m_combo->GetWindowStyle();
 236
 237     // this is the character equivalent of the code
 238     wxChar keychar=0;
 239     if ((keycode >= WXK_SPACE) && (keycode <=255) && (keycode != WXK_DELETE) && wxIsprint(keycode))
 240     {
 241         keychar = (wxChar)keycode;
 242     }
 243     else if (unicode>0)
 244     {
 245         keychar = unicode;
 246     }
 247
 248     if ( keycode == WXK_DOWN || keycode == WXK_RIGHT )
 249     {
 250         value++;
 251         StopPartialCompletion();
 252     }
 253     else if ( keycode == WXK_UP || keycode == WXK_LEFT )
 254     {
 255         value--;
 256         StopPartialCompletion();
 257     }
 258     else if ( keycode == WXK_PAGEDOWN )
 259     {
 260         value+=10;
 261         StopPartialCompletion();
 262     }
 263     else if ( keycode == WXK_PAGEUP )
 264     {
 265         value-=10;
 266         StopPartialCompletion();
 267     }
 268     else if ( comboStyle & wxCB_READONLY )
 269     {
 270         // Try partial completion
 271
 272         // find the new partial completion string
 273 #if wxUSE_TIMER
 274         if (m_partialCompletionTimer.IsRunning())
 275             m_partialCompletionString+=wxString(keychar);
 276         else
 277 #endif // wxUSE_TIMER
 278             m_partialCompletionString=wxString(keychar);
 279
 280         // now search through the values to see if this is found
 281         int found = -1;
 282         unsigned int length=m_partialCompletionString.length();
 283         int i;
 284         for (i=0; i<itemCount; i++)
 285         {
 286             wxString item=GetString(i);
 287             if (( item.length() >= length) && (!  m_partialCompletionString.CmpNoCase(item.Left(length))))
 288             {
 289                 found=i;
 290                 break;
 291             }
 292         }
 293
 294         if (found<0)
 295         {
 296             StopPartialCompletion();
 297             ::wxBell();
 298             return true; // to stop the first value being set
 299         }
 300         else
 301         {
 302             value=i;
 303 #if wxUSE_TIMER
 304             m_partialCompletionTimer.Start(wxODCB_PARTIAL_COMPLETION_TIME, true);
 305 #endif // wxUSE_TIMER
 306         }
 307     }
 308     else
 309         return false;
 310
 311     if ( saturate )
 312     {
 313         if ( value >= itemCount )
 314             value = itemCount - 1;
 315         else if ( value < 0 )
 316             value = 0;
 317     }
 318     else
 319     {
 320         if ( value >= itemCount )
 321             value -= itemCount;
 322         else if ( value < 0 )
 323             value += itemCount;
 324     }
 325
 326     if ( value == m_value )
 327         // Even if value was same, don't skip the event
 328         // (good for consistency)
 329         return true;
 330
 331     m_value = value;
 332
 333     if ( value >= 0 )
 334         m_combo->SetValue(m_strings[value]);
 335
 336     SendComboBoxEvent(m_value);
 337
 338     return true;
 339 }
 340
 341 // stop partial completion
 342 void wxVListBoxComboPopup::StopPartialCompletion()
 343 {
 344     m_partialCompletionString = wxEmptyString;
 345 #if wxUSE_TIMER
 346     m_partialCompletionTimer.Stop();
 347 #endif // wxUSE_TIMER
 348 }
 349
 350 void wxVListBoxComboPopup::OnComboDoubleClick()
 351 {
 352     // Cycle on dclick (disable saturation to allow true cycling).
 353     if ( !::wxGetKeyState(WXK_SHIFT) )
 354         HandleKey(WXK_DOWN,false);
 355     else
 356         HandleKey(WXK_UP,false);
 357 }
 358
 359 void wxVListBoxComboPopup::OnComboKeyEvent( wxKeyEvent& event )
 360 {
 361     // Saturated key movement on
 362     if ( !HandleKey(event.GetKeyCode(),true,
 363 #if wxUSE_UNICODE
 364         event.GetUnicodeKey()
 365 #else
 366         0
 367 #endif
 368         ) )
 369         event.Skip();
 370 }
 371
 372 void wxVListBoxComboPopup::OnPopup()
 373 {
 374     // *must* set value after size is set (this is because of a vlbox bug)
 375     wxVListBox::SetSelection(m_value);
 376 }
 377
 378 void wxVListBoxComboPopup::OnMouseMove(wxMouseEvent& event)
 379 {
 380     event.Skip();
 381
 382     // Move selection to cursor if it is inside the popup
 383
 384     int y = event.GetPosition().y;
 385     int fromBottom = GetClientSize().y - y;
 386
 387     // Since in any case we need to find out if the last item is only
 388     // partially visible, we might just as well replicate the HitTest
 389     // loop here.
 390     const size_t lineMax = GetVisibleEnd();
 391     for ( size_t line = GetVisibleBegin(); line < lineMax; line++ )
 392     {
 393         y -= OnGetLineHeight(line);
 394         if ( y < 0 )
 395         {
 396             // Only change selection if item is fully visible
 397             if ( (y + fromBottom) >= 0 )
 398             {
 399                 wxVListBox::SetSelection((int)line);
 400                 return;
 401             }
 402         }
 403     }
 404 }
 405
 406 void wxVListBoxComboPopup::OnLeftClick(wxMouseEvent& WXUNUSED(event))
 407 {
 408     DismissWithEvent();
 409 }
 410
 411 void wxVListBoxComboPopup::OnKey(wxKeyEvent& event)
 412 {
 413     // Select item if ENTER is pressed
 414     if ( event.GetKeyCode() == WXK_RETURN || event.GetKeyCode() == WXK_NUMPAD_ENTER )
 415     {
 416         DismissWithEvent();
 417     }
 418     // Hide popup if ESC is pressed
 419     else if ( event.GetKeyCode() == WXK_ESCAPE )
 420     {
 421         StopPartialCompletion();
 422         Dismiss();
 423     }
 424     else
 425     {
 426         int comboStyle = m_combo->GetWindowStyle();
 427         int keycode = event.GetKeyCode();
 428         // Process partial completion key codes here, but not the arrow keys as the base class will do that for us
 429         if ((comboStyle & wxCB_READONLY) &&
 430             (keycode >= WXK_SPACE) && (keycode <=255) && (keycode != WXK_DELETE) && wxIsprint(keycode))
 431         {
 432             OnComboKeyEvent(event);
 433             SetSelection(m_value); // ensure the highlight bar moves
 434         }
 435         else
 436             event.Skip();
 437     }
 438 }
 439
 440 void wxVListBoxComboPopup::Insert( const wxString& item, int pos )
 441 {
 442     // Need to change selection?
 443     wxString strValue;
 444     if ( !(m_combo->GetWindowStyle() & wxCB_READONLY) &&
 445          m_combo->GetValue() == item )
 446     {
 447         m_value = pos;
 448     }
 449
 450     m_strings.Insert(item,pos);
 451     m_widths.Insert(-1,pos);
 452     m_widthsDirty = true;
 453
 454     if ( IsCreated() )
 455         wxVListBox::SetItemCount( wxVListBox::GetItemCount()+1 );
 456 }
 457
 458 int wxVListBoxComboPopup::Append(const wxString& item)
 459 {
 460     int pos = (int)m_strings.GetCount();
 461
 462     if ( m_combo->GetWindowStyle() & wxCB_SORT )
 463     {
 464         // Find position
 465         // TODO: Could be optimized with binary search
 466         wxArrayString strings = m_strings;
 467         unsigned int i;
 468
 469         for ( i=0; i<strings.GetCount(); i++ )
 470         {
 471             if ( item.Cmp(strings.Item(i)) < 0 )
 472             {
 473                 pos = (int)i;
 474                 break;
 475             }
 476         }
 477     }
 478
 479     Insert(item,pos);
 480
 481     return pos;
 482 }
 483
 484 void wxVListBoxComboPopup::Clear()
 485 {
 486     wxASSERT(m_combo);
 487
 488     m_strings.Empty();
 489     m_widths.Empty();
 490
 491     m_widestWidth = 0;
 492     m_widestItem = -1;
 493
 494     ClearClientDatas();
 495
 496     m_value = wxNOT_FOUND;
 497
 498     if ( IsCreated() )
 499         wxVListBox::SetItemCount(0);
 500 }
 501
 502 void wxVListBoxComboPopup::ClearClientDatas()
 503 {
 504     if ( m_clientDataItemsType == wxClientData_Object )
 505     {
 506         size_t i;
 507         for ( i=0; i<m_clientDatas.GetCount(); i++ )
 508             delete (wxClientData*) m_clientDatas[i];
 509     }
 510
 511     m_clientDatas.Empty();
 512 }
 513
 514 void wxVListBoxComboPopup::SetItemClientData( unsigned int n,
 515                                               void* clientData,
 516                                               wxClientDataType clientDataItemsType )
 517 {
 518     // It should be sufficient to update this variable only here
 519     m_clientDataItemsType = clientDataItemsType;
 520
 521     m_clientDatas.SetCount(n+1,NULL);
 522     m_clientDatas[n] = clientData;
 523
 524     ItemWidthChanged(n);
 525 }
 526
 527 void* wxVListBoxComboPopup::GetItemClientData(unsigned int n) const
 528 {
 529     if ( m_clientDatas.GetCount() > n )
 530         return m_clientDatas[n];
 531
 532     return NULL;
 533 }
 534
 535 void wxVListBoxComboPopup::Delete( unsigned int item )
 536 {
 537     // Remove client data, if set
 538     if ( m_clientDatas.GetCount() )
 539     {
 540         if ( m_clientDataItemsType == wxClientData_Object )
 541             delete (wxClientData*) m_clientDatas[item];
 542
 543         m_clientDatas.RemoveAt(item);
 544     }
 545
 546     m_strings.RemoveAt(item);
 547     m_widths.RemoveAt(item);
 548
 549     if ( (int)item == m_widestItem )
 550         m_findWidest = true;
 551
 552     if ( IsCreated() )
 553         wxVListBox::SetItemCount( wxVListBox::GetItemCount()-1 );
 554 }
 555
 556 int wxVListBoxComboPopup::FindString(const wxString& s, bool bCase) const
 557 {
 558     return m_strings.Index(s, bCase);
 559 }
 560
 561 unsigned int wxVListBoxComboPopup::GetCount() const
 562 {
 563     return m_strings.GetCount();
 564 }
 565
 566 wxString wxVListBoxComboPopup::GetString( int item ) const
 567 {
 568     return m_strings[item];
 569 }
 570
 571 void wxVListBoxComboPopup::SetString( int item, const wxString& str )
 572 {
 573     m_strings[item] = str;
 574     ItemWidthChanged(item);
 575 }
 576
 577 wxString wxVListBoxComboPopup::GetStringValue() const
 578 {
 579     if ( m_value >= 0 )
 580         return m_strings[m_value];
 581     return wxEmptyString;
 582 }
 583
 584 void wxVListBoxComboPopup::SetSelection( int item )
 585 {
 586     wxCHECK_RET( item == wxNOT_FOUND || ((unsigned int)item < GetCount()),
 587                  wxT("invalid index in wxVListBoxComboPopup::SetSelection") );
 588
 589     m_value = item;
 590
 591     if ( IsCreated() )
 592         wxVListBox::SetSelection(item);
 593 }
 594
 595 int wxVListBoxComboPopup::GetSelection() const
 596 {
 597     return m_value;
 598 }
 599
 600 void wxVListBoxComboPopup::SetStringValue( const wxString& value )
 601 {
 602     int index = m_strings.Index(value);
 603
 604     m_value = index;
 605
 606     if ( index >= -1 && index < (int)wxVListBox::GetItemCount() )
 607         wxVListBox::SetSelection(index);
 608 }
 609
 610 void wxVListBoxComboPopup::CalcWidths()
 611 {
 612     bool doFindWidest = m_findWidest;
 613
 614     // Measure items with dirty width.
 615     if ( m_widthsDirty )
 616     {
 617         unsigned int i;
 618         unsigned int n = m_widths.GetCount();
 619         int dirtyHandled = 0;
 620         wxArrayInt& widths = m_widths;
 621
 622         // I think using wxDC::GetTextExtent is faster than
 623         // wxWindow::GetTextExtent (assuming same dc is used
 624         // for all calls, as we do here).
 625         wxClientDC dc(m_combo);
 626         dc.SetFont(m_useFont);
 627
 628         for ( i=0; i<n; i++ )
 629         {
 630             if ( widths[i] < 0 )
 631             {
 632                 wxCoord x = OnMeasureItemWidth(i);
 633
 634                 if ( x < 0 )
 635                 {
 636                     const wxString& text = m_strings[i];
 637
 638                     // To make sure performance won't suck in extreme scenarios,
 639                     // we'll estimate length after some arbitrary number of items
 640                     // have been checked precily.
 641                     if ( dirtyHandled < 1024 )
 642                     {
 643                         wxCoord y;
 644                         dc.GetTextExtent(text, &x, &y, 0, 0);
 645                         x += 4;
 646                     }
 647                     else
 648                     {
 649                         x = text.length() * (dc.GetCharWidth()+1);
 650                     }
 651                 }
 652
 653                 widths[i] = x;
 654
 655                 if ( x >= m_widestWidth )
 656                 {
 657                     m_widestWidth = x;
 658                     m_widestItem = (int)i;
 659                 }
 660                 else if ( (int)i == m_widestItem )
 661                 {
 662                     // Width of previously widest item has been decreased, so
 663                     // we'll have to check all to find current widest item.
 664                     doFindWidest = true;
 665                 }
 666
 667                 dirtyHandled++;
 668             }
 669         }
 670
 671         m_widthsDirty = false;
 672     }
 673
 674     if ( doFindWidest )
 675     {
 676         unsigned int i;
 677         unsigned int n = m_widths.GetCount();
 678
 679         int bestWidth = -1;
 680         int bestIndex = -1;
 681
 682         for ( i=0; i<n; i++ )
 683         {
 684             int w = m_widths[i];
 685             if ( w > bestWidth )
 686             {
 687                 bestIndex = (int)i;
 688                 bestWidth = w;
 689             }
 690         }
 691
 692         m_widestWidth = bestWidth;
 693         m_widestItem = bestIndex;
 694
 695         m_findWidest = false;
 696     }
 697 }
 698
 699 wxSize wxVListBoxComboPopup::GetAdjustedSize( int minWidth, int prefHeight, int maxHeight )
 700 {
 701     int height = 250;
 702
 703     if ( m_strings.GetCount() )
 704     {
 705         if ( prefHeight > 0 )
 706             height = prefHeight;
 707
 708         if ( height > maxHeight )
 709             height = maxHeight;
 710
 711         int totalHeight = GetTotalHeight(); // + 3;
 712         if ( height >= totalHeight )
 713         {
 714             height = totalHeight;
 715         }
 716         else
 717         {
 718             // Adjust height to a multiple of the height of the first item
 719             // NB: Calculations that take variable height into account
 720             //     are unnecessary.
 721             int fih = GetLineHeight(0);
 722             int shown = height/fih;
 723             height = shown * fih;
 724         }
 725     }
 726     else
 727         height = 50;
 728
 729     CalcWidths();
 730
 731     // Take scrollbar into account in width calculations
 732     int widestWidth = m_widestWidth + wxSystemSettings::GetMetric(wxSYS_VSCROLL_X);
 733     return wxSize(minWidth > widestWidth ? minWidth : widestWidth,
 734                   height+2);
 735 }
 736
 737 //void wxVListBoxComboPopup::Populate( int n, const wxString choices[] )
 738 void wxVListBoxComboPopup::Populate( const wxArrayString& choices )
 739 {
 740     int i;
 741
 742     int n = choices.GetCount();
 743
 744     for ( i=0; i<n; i++ )
 745     {
 746         const wxString& item = choices.Item(i);
 747         m_strings.Add(item);
 748     }
 749
 750     m_widths.SetCount(n,-1);
 751     m_widthsDirty = true;
 752
 753     if ( IsCreated() )
 754         wxVListBox::SetItemCount(n);
 755
 756     // Sort the initial choices
 757     if ( m_combo->GetWindowStyle() & wxCB_SORT )
 758         m_strings.Sort();
 759
 760     // Find initial selection
 761     wxString strValue = m_combo->GetValue();
 762     if ( strValue.length() )
 763         m_value = m_strings.Index(strValue);
 764 }
 765
 766 // ----------------------------------------------------------------------------
 767 // wxOwnerDrawnComboBox
 768 // ----------------------------------------------------------------------------
 769
 770
 771 BEGIN_EVENT_TABLE(wxOwnerDrawnComboBox, wxComboCtrl)
 772 END_EVENT_TABLE()
 773
 774
 775 IMPLEMENT_DYNAMIC_CLASS2(wxOwnerDrawnComboBox, wxComboCtrl, wxControlWithItems)
 776
 777 void wxOwnerDrawnComboBox::Init()
 778 {
 779 }
 780
 781 bool wxOwnerDrawnComboBox::Create(wxWindow *parent,
 782                                   wxWindowID id,
 783                                   const wxString& value,
 784                                   const wxPoint& pos,
 785                                   const wxSize& size,
 786                                   long style,
 787                                   const wxValidator& validator,
 788                                   const wxString& name)
 789 {
 790     return wxComboCtrl::Create(parent,id,value,pos,size,style,validator,name);
 791 }
 792
 793 wxOwnerDrawnComboBox::wxOwnerDrawnComboBox(wxWindow *parent,
 794                                            wxWindowID id,
 795                                            const wxString& value,
 796                                            const wxPoint& pos,
 797                                            const wxSize& size,
 798                                            const wxArrayString& choices,
 799                                            long style,
 800                                            const wxValidator& validator,
 801                                            const wxString& name)
 802     : wxComboCtrl()
 803 {
 804     Init();
 805
 806     Create(parent,id,value,pos,size,choices,style, validator, name);
 807 }
 808
 809 bool wxOwnerDrawnComboBox::Create(wxWindow *parent,
 810                                   wxWindowID id,
 811                                   const wxString& value,
 812                                   const wxPoint& pos,
 813                                   const wxSize& size,
 814                                   const wxArrayString& choices,
 815                                   long style,
 816                                   const wxValidator& validator,
 817                                   const wxString& name)
 818 {
 819     m_initChs = choices;
 820     //wxCArrayString chs(choices);
 821
 822     //return Create(parent, id, value, pos, size, chs.GetCount(),
 823     //              chs.GetStrings(), style, validator, name);
 824     return Create(parent, id, value, pos, size, 0,
 825                   NULL, style, validator, name);
 826 }
 827
 828 bool wxOwnerDrawnComboBox::Create(wxWindow *parent,
 829                                   wxWindowID id,
 830                                   const wxString& value,
 831                                   const wxPoint& pos,
 832                                   const wxSize& size,
 833                                   int n,
 834                                   const wxString choices[],
 835                                   long style,
 836                                   const wxValidator& validator,
 837                                   const wxString& name)
 838 {
 839
 840     if ( !Create(parent, id, value, pos, size, style,
 841                  validator, name) )
 842     {
 843         return false;
 844     }
 845
 846     int i;
 847     for ( i=0; i<n; i++ )
 848         m_initChs.Add(choices[i]);
 849
 850     return true;
 851 }
 852
 853 wxOwnerDrawnComboBox::~wxOwnerDrawnComboBox()
 854 {
 855     if ( m_popupInterface )
 856         GetVListBoxComboPopup()->ClearClientDatas();
 857 }
 858
 859 void wxOwnerDrawnComboBox::DoSetPopupControl(wxComboPopup* popup)
 860 {
 861     if ( !popup )
 862     {
 863         popup = new wxVListBoxComboPopup();
 864     }
 865
 866     wxComboCtrl::DoSetPopupControl(popup);
 867
 868     wxASSERT(popup);
 869
 870     // Add initial choices to the wxVListBox
 871     if ( !GetVListBoxComboPopup()->GetCount() )
 872     {
 873         GetVListBoxComboPopup()->Populate(m_initChs);
 874         m_initChs.Clear();
 875     }
 876 }
 877
 878 // ----------------------------------------------------------------------------
 879 // wxOwnerDrawnComboBox item manipulation methods
 880 // ----------------------------------------------------------------------------
 881
 882 void wxOwnerDrawnComboBox::Clear()
 883 {
 884     EnsurePopupControl();
 885
 886     GetVListBoxComboPopup()->Clear();
 887
 888     SetValue(wxEmptyString);
 889 }
 890
 891 void wxOwnerDrawnComboBox::Delete(unsigned int n)
 892 {
 893     wxCHECK_RET( IsValid(n), _T("invalid index in wxOwnerDrawnComboBox::Delete") );
 894
 895     if ( GetSelection() == (int) n )
 896         SetValue(wxEmptyString);
 897
 898     GetVListBoxComboPopup()->Delete(n);
 899 }
 900
 901 unsigned int wxOwnerDrawnComboBox::GetCount() const
 902 {
 903     if ( !m_popupInterface )
 904         return m_initChs.GetCount();
 905
 906     return GetVListBoxComboPopup()->GetCount();
 907 }
 908
 909 wxString wxOwnerDrawnComboBox::GetString(unsigned int n) const
 910 {
 911     wxCHECK_MSG( IsValid(n), wxEmptyString, _T("invalid index in wxOwnerDrawnComboBox::GetString") );
 912
 913     if ( !m_popupInterface )
 914         return m_initChs.Item(n);
 915
 916     return GetVListBoxComboPopup()->GetString(n);
 917 }
 918
 919 void wxOwnerDrawnComboBox::SetString(unsigned int n, const wxString& s)
 920 {
 921     EnsurePopupControl();
 922
 923     wxCHECK_RET( IsValid(n), _T("invalid index in wxOwnerDrawnComboBox::SetString") );
 924
 925     GetVListBoxComboPopup()->SetString(n,s);
 926 }
 927
 928 int wxOwnerDrawnComboBox::FindString(const wxString& s, bool bCase) const
 929 {
 930     if ( !m_popupInterface )
 931         return m_initChs.Index(s, bCase);
 932
 933     return GetVListBoxComboPopup()->FindString(s, bCase);
 934 }
 935
 936 void wxOwnerDrawnComboBox::Select(int n)
 937 {
 938     EnsurePopupControl();
 939
 940     wxCHECK_RET( (n == wxNOT_FOUND) || IsValid(n), _T("invalid index in wxOwnerDrawnComboBox::Select") );
 941
 942     GetVListBoxComboPopup()->SetSelection(n);
 943
 944     wxString str;
 945     if ( n >= 0 )
 946         str = GetVListBoxComboPopup()->GetString(n);
 947
 948     // Refresh text portion in control
 949     if ( m_text )
 950         m_text->SetValue( str );
 951     else
 952         m_valueString = str;
 953
 954     Refresh();
 955 }
 956
 957 int wxOwnerDrawnComboBox::GetSelection() const
 958 {
 959     if ( !m_popupInterface )
 960         return m_initChs.Index(m_valueString);
 961
 962     return GetVListBoxComboPopup()->GetSelection();
 963 }
 964
 965 int wxOwnerDrawnComboBox::DoAppend(const wxString& item)
 966 {
 967     EnsurePopupControl();
 968     wxASSERT(m_popupInterface);
 969
 970     return GetVListBoxComboPopup()->Append(item);
 971 }
 972
 973 int wxOwnerDrawnComboBox::DoInsert(const wxString& item, unsigned int pos)
 974 {
 975     EnsurePopupControl();
 976
 977     wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
 978     wxCHECK_MSG(IsValidInsert(pos), -1, wxT("invalid index"));
 979
 980     GetVListBoxComboPopup()->Insert(item,pos);
 981
 982     return pos;
 983 }
 984
 985 void wxOwnerDrawnComboBox::DoSetItemClientData(unsigned int n, void* clientData)
 986 {
 987     EnsurePopupControl();
 988
 989     GetVListBoxComboPopup()->SetItemClientData(n,clientData,m_clientDataItemsType);
 990 }
 991
 992 void* wxOwnerDrawnComboBox::DoGetItemClientData(unsigned int n) const
 993 {
 994     if ( !m_popupInterface )
 995         return NULL;
 996
 997     return GetVListBoxComboPopup()->GetItemClientData(n);
 998 }
 999
1000 void wxOwnerDrawnComboBox::DoSetItemClientObject(unsigned int n, wxClientData* clientData)
1001 {
1002     DoSetItemClientData(n, (void*) clientData);
1003 }
1004
1005 wxClientData* wxOwnerDrawnComboBox::DoGetItemClientObject(unsigned int n) const
1006 {
1007     return (wxClientData*) DoGetItemClientData(n);
1008 }
1009
1010 // ----------------------------------------------------------------------------
1011 // wxOwnerDrawnComboBox item drawing and measuring default implementations
1012 // ----------------------------------------------------------------------------
1013
1014 void wxOwnerDrawnComboBox::OnDrawItem( wxDC& dc,
1015                                        const wxRect& rect,
1016                                        int item,
1017                                        int flags ) const
1018 {
1019     if ( flags & wxODCB_PAINTING_CONTROL )
1020     {
1021         dc.DrawText( GetValue(),
1022                      rect.x + GetTextIndent(),
1023                      (rect.height-dc.GetCharHeight())/2 + rect.y );
1024     }
1025     else
1026     {
1027         dc.DrawText( GetVListBoxComboPopup()->GetString(item), rect.x + 2, rect.y );
1028     }
1029 }
1030
1031 wxCoord wxOwnerDrawnComboBox::OnMeasureItem( size_t WXUNUSED(item) ) const
1032 {
1033     return -1;
1034 }
1035
1036 wxCoord wxOwnerDrawnComboBox::OnMeasureItemWidth( size_t WXUNUSED(item) ) const
1037 {
1038     return -1;
1039 }
1040
1041 void wxOwnerDrawnComboBox::OnDrawBackground(wxDC& dc, const wxRect& rect, int item, int flags) const
1042 {
1043     // we need to render selected and current items differently
1044     if ( GetVListBoxComboPopup()->IsCurrent((size_t)item) ||
1045          (flags & wxODCB_PAINTING_CONTROL) )
1046     {
1047         int focusFlag = wxCONTROL_SELECTED;
1048
1049         if ( (flags & wxODCB_PAINTING_CONTROL) != wxODCB_PAINTING_CONTROL )
1050             focusFlag |= wxCONTROL_ISSUBMENU;
1051
1052         DrawFocusBackground(dc, rect, focusFlag );
1053     }
1054     //else: do nothing for the normal items
1055 }
1056
1057 #endif // wxUSE_ODCOMBOBOX