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     event.Skip();
 305
 306     // Move selection to cursor if it is inside the popup
 307
 308     int y = event.GetPosition().y;
 309     int fromBottom = GetClientSize().y - y;
 310
 311     // Since in any case we need to find out if the last item is only
 312     // partially visible, we might just as well replicate the HitTest
 313     // loop here.
 314     const size_t lineMax = GetVisibleEnd();
 315     for ( size_t line = GetVisibleBegin(); line < lineMax; line++ )
 316     {
 317         y -= OnGetLineHeight(line);
 318         if ( y < 0 )
 319         {
 320             // Only change selection if item is fully visible
 321             if ( (y + fromBottom) >= 0 )
 322             {
 323                 wxVListBox::SetSelection((int)line);
 324                 return;
 325             }
 326         }
 327     }
 328 }
 329
 330 void wxVListBoxComboPopup::OnLeftClick(wxMouseEvent& WXUNUSED(event))
 331 {
 332     DismissWithEvent();
 333 }
 334
 335 void wxVListBoxComboPopup::OnKey(wxKeyEvent& event)
 336 {
 337     // Select item if ENTER is pressed
 338     if ( event.GetKeyCode() == WXK_RETURN || event.GetKeyCode() == WXK_NUMPAD_ENTER )
 339     {
 340         DismissWithEvent();
 341     }
 342     // Hide popup if ESC is pressed
 343     else if ( event.GetKeyCode() == WXK_ESCAPE )
 344         Dismiss();
 345     else
 346         event.Skip();
 347 }
 348
 349 void wxVListBoxComboPopup::Insert( const wxString& item, int pos )
 350 {
 351     // Need to change selection?
 352     wxString strValue;
 353     if ( !(m_combo->GetWindowStyle() & wxCB_READONLY) &&
 354          m_combo->GetValue() == item )
 355     {
 356         m_value = pos;
 357     }
 358
 359     m_strings.Insert(item,pos);
 360     m_widths.Insert(-1,pos);
 361     m_widthsDirty = true;
 362
 363     if ( IsCreated() )
 364         wxVListBox::SetItemCount( wxVListBox::GetItemCount()+1 );
 365 }
 366
 367 int wxVListBoxComboPopup::Append(const wxString& item)
 368 {
 369     int pos = (int)m_strings.GetCount();
 370
 371     if ( m_combo->GetWindowStyle() & wxCB_SORT )
 372     {
 373         // Find position
 374         // TODO: Could be optimized with binary search
 375         wxArrayString strings = m_strings;
 376         unsigned int i;
 377
 378         for ( i=0; i<strings.GetCount(); i++ )
 379         {
 380             if ( item.Cmp(strings.Item(i)) < 0 )
 381             {
 382                 pos = (int)i;
 383                 break;
 384             }
 385         }
 386     }
 387
 388     Insert(item,pos);
 389
 390     return pos;
 391 }
 392
 393 void wxVListBoxComboPopup::Clear()
 394 {
 395     wxASSERT(m_combo);
 396
 397     m_strings.Empty();
 398     m_widths.Empty();
 399
 400     m_widestWidth = 0;
 401     m_widestItem = -1;
 402
 403     ClearClientDatas();
 404
 405     m_value = wxNOT_FOUND;
 406
 407     if ( IsCreated() )
 408         wxVListBox::SetItemCount(0);
 409 }
 410
 411 void wxVListBoxComboPopup::ClearClientDatas()
 412 {
 413     if ( m_clientDataItemsType == wxClientData_Object )
 414     {
 415         size_t i;
 416         for ( i=0; i<m_clientDatas.GetCount(); i++ )
 417             delete (wxClientData*) m_clientDatas[i];
 418     }
 419
 420     m_clientDatas.Empty();
 421 }
 422
 423 void wxVListBoxComboPopup::SetItemClientData( unsigned int n,
 424                                               void* clientData,
 425                                               wxClientDataType clientDataItemsType )
 426 {
 427     // It should be sufficient to update this variable only here
 428     m_clientDataItemsType = clientDataItemsType;
 429
 430     m_clientDatas.SetCount(n+1,NULL);
 431     m_clientDatas[n] = clientData;
 432
 433     ItemWidthChanged(n);
 434 }
 435
 436 void* wxVListBoxComboPopup::GetItemClientData(unsigned int n) const
 437 {
 438     if ( m_clientDatas.GetCount() > n )
 439         return m_clientDatas[n];
 440
 441     return NULL;
 442 }
 443
 444 void wxVListBoxComboPopup::Delete( unsigned int item )
 445 {
 446     // Remove client data, if set
 447     if ( m_clientDatas.GetCount() )
 448     {
 449         if ( m_clientDataItemsType == wxClientData_Object )
 450             delete (wxClientData*) m_clientDatas[item];
 451
 452         m_clientDatas.RemoveAt(item);
 453     }
 454
 455     m_strings.RemoveAt(item);
 456     m_widths.RemoveAt(item);
 457
 458     if ( (int)item == m_widestItem )
 459         m_findWidest = true;
 460
 461     if ( IsCreated() )
 462         wxVListBox::SetItemCount( wxVListBox::GetItemCount()-1 );
 463 }
 464
 465 int wxVListBoxComboPopup::FindString(const wxString& s, bool bCase) const
 466 {
 467     return m_strings.Index(s, bCase);
 468 }
 469
 470 unsigned int wxVListBoxComboPopup::GetCount() const
 471 {
 472     return m_strings.GetCount();
 473 }
 474
 475 wxString wxVListBoxComboPopup::GetString( int item ) const
 476 {
 477     return m_strings[item];
 478 }
 479
 480 void wxVListBoxComboPopup::SetString( int item, const wxString& str )
 481 {
 482     m_strings[item] = str;
 483     ItemWidthChanged(item);
 484 }
 485
 486 wxString wxVListBoxComboPopup::GetStringValue() const
 487 {
 488     if ( m_value >= 0 )
 489         return m_strings[m_value];
 490     return wxEmptyString;
 491 }
 492
 493 void wxVListBoxComboPopup::SetSelection( int item )
 494 {
 495     wxCHECK_RET( item == wxNOT_FOUND || ((unsigned int)item < GetCount()),
 496                  wxT("invalid index in wxVListBoxComboPopup::SetSelection") );
 497
 498     m_value = item;
 499
 500     if ( IsCreated() )
 501         wxVListBox::SetSelection(item);
 502 }
 503
 504 int wxVListBoxComboPopup::GetSelection() const
 505 {
 506     return m_value;
 507 }
 508
 509 void wxVListBoxComboPopup::SetStringValue( const wxString& value )
 510 {
 511     int index = m_strings.Index(value);
 512
 513     m_value = index;
 514
 515     if ( index >= -1 && index < (int)wxVListBox::GetItemCount() )
 516         wxVListBox::SetSelection(index);
 517 }
 518
 519 wxSize wxVListBoxComboPopup::GetAdjustedSize( int minWidth, int prefHeight, int maxHeight )
 520 {
 521     int height = 250;
 522
 523     if ( m_strings.GetCount() )
 524     {
 525         if ( prefHeight > 0 )
 526             height = prefHeight;
 527
 528         if ( height > maxHeight )
 529             height = maxHeight;
 530
 531         int totalHeight = GetTotalHeight(); // + 3;
 532         if ( height >= totalHeight )
 533         {
 534             height = totalHeight;
 535         }
 536         else
 537         {
 538             // Adjust height to a multiple of the height of the first item
 539             // NB: Calculations that take variable height into account
 540             //     are unnecessary.
 541             int fih = GetLineHeight(0);
 542             int shown = height/fih;
 543             height = shown * fih;
 544         }
 545     }
 546     else
 547         height = 50;
 548
 549     bool doFindWidest = m_findWidest;
 550
 551     // Measure items with dirty width.
 552     if ( m_widthsDirty )
 553     {
 554         unsigned int i;
 555         unsigned int n = m_widths.GetCount();
 556         int dirtyHandled = 0;
 557         wxArrayInt& widths = m_widths;
 558
 559         // I think using wxDC::GetTextExtent is faster than
 560         // wxWindow::GetTextExtent (assuming same dc is used
 561         // for all calls, as we do here).
 562         wxClientDC dc(m_combo);
 563         dc.SetFont(m_useFont);
 564
 565         for ( i=0; i<n; i++ )
 566         {
 567             if ( widths[i] < 0 )
 568             {
 569                 wxCoord x = OnMeasureItemWidth(i);
 570
 571                 if ( x < 0 )
 572                 {
 573                     const wxString& text = m_strings[i];
 574
 575                     // To make sure performance won't suck in extreme scenarios,
 576                     // we'll estimate length after some arbitrary number of items
 577                     // have been checked precily.
 578                     if ( dirtyHandled < 1024 )
 579                     {
 580                         wxCoord y;
 581                         dc.GetTextExtent(text, &x, &y, 0, 0);
 582                         x += 4;
 583                     }
 584                     else
 585                     {
 586                         x = text.length() * (dc.GetCharWidth()+1);
 587                     }
 588                 }
 589
 590                 widths[i] = x;
 591
 592                 if ( x >= m_widestWidth )
 593                 {
 594                     m_widestWidth = x;
 595                     m_widestItem = (int)i;
 596                 }
 597                 else if ( (int)i == m_widestItem )
 598                 {
 599                     // Width of previously widest item has been decreased, so
 600                     // we'll have to check all to find current widest item.
 601                     doFindWidest = true;
 602                 }
 603
 604                 dirtyHandled++;
 605             }
 606         }
 607
 608         m_widthsDirty = false;
 609     }
 610
 611     if ( doFindWidest )
 612     {
 613         unsigned int i;
 614         unsigned int n = m_widths.GetCount();
 615
 616         int bestWidth = -1;
 617         int bestIndex = -1;
 618
 619         for ( i=0; i<n; i++ )
 620         {
 621             int w = m_widths[i];
 622             if ( w > bestWidth )
 623             {
 624                 bestIndex = (int)i;
 625                 bestWidth = w;
 626             }
 627         }
 628
 629         m_widestWidth = bestWidth;
 630         m_widestItem = bestIndex;
 631
 632         m_findWidest = false;
 633     }
 634
 635     // Take scrollbar into account in width calculations
 636     int widestWidth = m_widestWidth + wxSystemSettings::GetMetric(wxSYS_VSCROLL_X);
 637     return wxSize(minWidth > widestWidth ? minWidth : widestWidth,
 638                   height+2);
 639 }
 640
 641 //void wxVListBoxComboPopup::Populate( int n, const wxString choices[] )
 642 void wxVListBoxComboPopup::Populate( const wxArrayString& choices )
 643 {
 644     int i;
 645
 646     int n = choices.GetCount();
 647
 648     for ( i=0; i<n; i++ )
 649     {
 650         const wxString& item = choices.Item(i);
 651         m_strings.Add(item);
 652     }
 653
 654     m_widths.SetCount(n,-1);
 655     m_widthsDirty = true;
 656
 657     if ( IsCreated() )
 658         wxVListBox::SetItemCount(n);
 659
 660     // Sort the initial choices
 661     if ( m_combo->GetWindowStyle() & wxCB_SORT )
 662         m_strings.Sort();
 663
 664     // Find initial selection
 665     wxString strValue = m_combo->GetValue();
 666     if ( strValue.length() )
 667         m_value = m_strings.Index(strValue);
 668 }
 669
 670 // ----------------------------------------------------------------------------
 671 // wxOwnerDrawnComboBox
 672 // ----------------------------------------------------------------------------
 673
 674
 675 BEGIN_EVENT_TABLE(wxOwnerDrawnComboBox, wxComboCtrl)
 676 END_EVENT_TABLE()
 677
 678
 679 IMPLEMENT_DYNAMIC_CLASS2(wxOwnerDrawnComboBox, wxComboCtrl, wxControlWithItems)
 680
 681 void wxOwnerDrawnComboBox::Init()
 682 {
 683 }
 684
 685 bool wxOwnerDrawnComboBox::Create(wxWindow *parent,
 686                                   wxWindowID id,
 687                                   const wxString& value,
 688                                   const wxPoint& pos,
 689                                   const wxSize& size,
 690                                   long style,
 691                                   const wxValidator& validator,
 692                                   const wxString& name)
 693 {
 694     return wxComboCtrl::Create(parent,id,value,pos,size,style,validator,name);
 695 }
 696
 697 wxOwnerDrawnComboBox::wxOwnerDrawnComboBox(wxWindow *parent,
 698                                            wxWindowID id,
 699                                            const wxString& value,
 700                                            const wxPoint& pos,
 701                                            const wxSize& size,
 702                                            const wxArrayString& choices,
 703                                            long style,
 704                                            const wxValidator& validator,
 705                                            const wxString& name)
 706     : wxComboCtrl()
 707 {
 708     Init();
 709
 710     Create(parent,id,value,pos,size,choices,style, validator, name);
 711 }
 712
 713 bool wxOwnerDrawnComboBox::Create(wxWindow *parent,
 714                                   wxWindowID id,
 715                                   const wxString& value,
 716                                   const wxPoint& pos,
 717                                   const wxSize& size,
 718                                   const wxArrayString& choices,
 719                                   long style,
 720                                   const wxValidator& validator,
 721                                   const wxString& name)
 722 {
 723     m_initChs = choices;
 724     //wxCArrayString chs(choices);
 725
 726     //return Create(parent, id, value, pos, size, chs.GetCount(),
 727     //              chs.GetStrings(), style, validator, name);
 728     return Create(parent, id, value, pos, size, 0,
 729                   NULL, style, validator, name);
 730 }
 731
 732 bool wxOwnerDrawnComboBox::Create(wxWindow *parent,
 733                                   wxWindowID id,
 734                                   const wxString& value,
 735                                   const wxPoint& pos,
 736                                   const wxSize& size,
 737                                   int n,
 738                                   const wxString choices[],
 739                                   long style,
 740                                   const wxValidator& validator,
 741                                   const wxString& name)
 742 {
 743
 744     if ( !Create(parent, id, value, pos, size, style,
 745                  validator, name) )
 746     {
 747         return false;
 748     }
 749
 750     int i;
 751     for ( i=0; i<n; i++ )
 752         m_initChs.Add(choices[i]);
 753
 754     return true;
 755 }
 756
 757 wxOwnerDrawnComboBox::~wxOwnerDrawnComboBox()
 758 {
 759     if ( m_popupInterface )
 760         GetVListBoxComboPopup()->ClearClientDatas();
 761 }
 762
 763 void wxOwnerDrawnComboBox::DoSetPopupControl(wxComboPopup* popup)
 764 {
 765     if ( !popup )
 766     {
 767         popup = new wxVListBoxComboPopup();
 768     }
 769
 770     wxComboCtrl::DoSetPopupControl(popup);
 771
 772     wxASSERT(popup);
 773
 774     // Add initial choices to the wxVListBox
 775     if ( !GetVListBoxComboPopup()->GetCount() )
 776     {
 777         GetVListBoxComboPopup()->Populate(m_initChs);
 778         m_initChs.Clear();
 779     }
 780 }
 781
 782 // ----------------------------------------------------------------------------
 783 // wxOwnerDrawnComboBox item manipulation methods
 784 // ----------------------------------------------------------------------------
 785
 786 void wxOwnerDrawnComboBox::Clear()
 787 {
 788     EnsurePopupControl();
 789
 790     GetVListBoxComboPopup()->Clear();
 791
 792     SetValue(wxEmptyString);
 793 }
 794
 795 void wxOwnerDrawnComboBox::Delete(unsigned int n)
 796 {
 797     wxCHECK_RET( IsValid(n), _T("invalid index in wxOwnerDrawnComboBox::Delete") );
 798
 799     if ( GetSelection() == (int) n )
 800         SetValue(wxEmptyString);
 801
 802     GetVListBoxComboPopup()->Delete(n);
 803 }
 804
 805 unsigned int wxOwnerDrawnComboBox::GetCount() const
 806 {
 807     if ( !m_popupInterface )
 808         return m_initChs.GetCount();
 809
 810     return GetVListBoxComboPopup()->GetCount();
 811 }
 812
 813 wxString wxOwnerDrawnComboBox::GetString(unsigned int n) const
 814 {
 815     wxCHECK_MSG( IsValid(n), wxEmptyString, _T("invalid index in wxOwnerDrawnComboBox::GetString") );
 816
 817     if ( !m_popupInterface )
 818         return m_initChs.Item(n);
 819
 820     return GetVListBoxComboPopup()->GetString(n);
 821 }
 822
 823 void wxOwnerDrawnComboBox::SetString(unsigned int n, const wxString& s)
 824 {
 825     EnsurePopupControl();
 826
 827     wxCHECK_RET( IsValid(n), _T("invalid index in wxOwnerDrawnComboBox::SetString") );
 828
 829     GetVListBoxComboPopup()->SetString(n,s);
 830 }
 831
 832 int wxOwnerDrawnComboBox::FindString(const wxString& s, bool bCase) const
 833 {
 834     if ( !m_popupInterface )
 835         return m_initChs.Index(s, bCase);
 836
 837     return GetVListBoxComboPopup()->FindString(s, bCase);
 838 }
 839
 840 void wxOwnerDrawnComboBox::Select(int n)
 841 {
 842     EnsurePopupControl();
 843
 844     wxCHECK_RET( (n == wxNOT_FOUND) || IsValid(n), _T("invalid index in wxOwnerDrawnComboBox::Select") );
 845
 846     GetVListBoxComboPopup()->SetSelection(n);
 847
 848     wxString str;
 849     if ( n >= 0 )
 850         str = GetVListBoxComboPopup()->GetString(n);
 851
 852     // Refresh text portion in control
 853     if ( m_text )
 854         m_text->SetValue( str );
 855     else
 856         m_valueString = str;
 857
 858     Refresh();
 859 }
 860
 861 int wxOwnerDrawnComboBox::GetSelection() const
 862 {
 863     if ( !m_popupInterface )
 864         return m_initChs.Index(m_valueString);
 865
 866     return GetVListBoxComboPopup()->GetSelection();
 867 }
 868
 869 int wxOwnerDrawnComboBox::DoAppend(const wxString& item)
 870 {
 871     EnsurePopupControl();
 872     wxASSERT(m_popupInterface);
 873
 874     return GetVListBoxComboPopup()->Append(item);
 875 }
 876
 877 int wxOwnerDrawnComboBox::DoInsert(const wxString& item, unsigned int pos)
 878 {
 879     EnsurePopupControl();
 880
 881     wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
 882     wxCHECK_MSG(IsValidInsert(pos), -1, wxT("invalid index"));
 883
 884     GetVListBoxComboPopup()->Insert(item,pos);
 885
 886     return pos;
 887 }
 888
 889 void wxOwnerDrawnComboBox::DoSetItemClientData(unsigned int n, void* clientData)
 890 {
 891     EnsurePopupControl();
 892
 893     GetVListBoxComboPopup()->SetItemClientData(n,clientData,m_clientDataItemsType);
 894 }
 895
 896 void* wxOwnerDrawnComboBox::DoGetItemClientData(unsigned int n) const
 897 {
 898     if ( !m_popupInterface )
 899         return NULL;
 900
 901     return GetVListBoxComboPopup()->GetItemClientData(n);
 902 }
 903
 904 void wxOwnerDrawnComboBox::DoSetItemClientObject(unsigned int n, wxClientData* clientData)
 905 {
 906     DoSetItemClientData(n, (void*) clientData);
 907 }
 908
 909 wxClientData* wxOwnerDrawnComboBox::DoGetItemClientObject(unsigned int n) const
 910 {
 911     return (wxClientData*) DoGetItemClientData(n);
 912 }
 913
 914 // ----------------------------------------------------------------------------
 915 // wxOwnerDrawnComboBox item drawing and measuring default implementations
 916 // ----------------------------------------------------------------------------
 917
 918 void wxOwnerDrawnComboBox::OnDrawItem( wxDC& dc,
 919                                        const wxRect& rect,
 920                                        int item,
 921                                        int flags ) const
 922 {
 923     if ( flags & wxODCB_PAINTING_CONTROL )
 924     {
 925         dc.DrawText( GetValue(),
 926                      rect.x + GetTextIndent(),
 927                      (rect.height-dc.GetCharHeight())/2 + rect.y );
 928     }
 929     else
 930     {
 931         dc.DrawText( GetVListBoxComboPopup()->GetString(item), rect.x + 2, rect.y );
 932     }
 933 }
 934
 935 wxCoord wxOwnerDrawnComboBox::OnMeasureItem( size_t WXUNUSED(item) ) const
 936 {
 937     return -1;
 938 }
 939
 940 wxCoord wxOwnerDrawnComboBox::OnMeasureItemWidth( size_t WXUNUSED(item) ) const
 941 {
 942     return -1;
 943 }
 944
 945 void wxOwnerDrawnComboBox::OnDrawBackground(wxDC& dc, const wxRect& rect, int item, int flags) const
 946 {
 947     // we need to render selected and current items differently
 948     if ( GetVListBoxComboPopup()->IsCurrent((size_t)item) )
 949     {
 950         DrawFocusBackground(dc,
 951                             rect,
 952                             (flags&wxODCB_PAINTING_CONTROL?0:wxCONTROL_ISSUBMENU) |
 953                             wxCONTROL_SELECTED);
 954     }
 955     //else: do nothing for the normal items
 956 }
 957
 958 #endif // wxUSE_ODCOMBOBOX