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