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 = 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 (m_partialCompletionTimer.IsRunning())
 274             m_partialCompletionString+=wxString(keychar);
 275         else
 276             m_partialCompletionString=wxString(keychar);
 277
 278         // now search through the values to see if this is found
 279         int found = -1;
 280         unsigned int length=m_partialCompletionString.Length();
 281         int i;
 282         for (i=0; i<itemCount; i++)
 283         {
 284             wxString item=GetString(i);
 285             if (( item.Length() >=length) && (!  m_partialCompletionString.CmpNoCase(item.Left(length))))
 286             {
 287                 found=i;
 288                 break;
 289             }
 290         }
 291
 292         if (found<0)
 293         {
 294             StopPartialCompletion();
 295             ::wxBell();
 296             return true; // to stop the first value being set
 297         }
 298         else
 299         {
 300             value=i;
 301             m_partialCompletionTimer.Start(wxODCB_PARTIAL_COMPLETION_TIME, true);
 302         }
 303     }
 304     else
 305         return false;
 306
 307     if ( saturate )
 308     {
 309         if ( value >= itemCount )
 310             value = itemCount - 1;
 311         else if ( value < 0 )
 312             value = 0;
 313     }
 314     else
 315     {
 316         if ( value >= itemCount )
 317             value -= itemCount;
 318         else if ( value < 0 )
 319             value += itemCount;
 320     }
 321
 322     if ( value == m_value )
 323         // Even if value was same, don't skip the event
 324         // (good for consistency)
 325         return true;
 326
 327     m_value = value;
 328
 329     if ( value >= 0 )
 330         m_combo->SetValue(m_strings[value]);
 331
 332     SendComboBoxEvent(m_value);
 333
 334     return true;
 335 }
 336
 337 // stop partial completion
 338 void wxVListBoxComboPopup::StopPartialCompletion()
 339 {
 340     m_partialCompletionString = wxEmptyString;
 341     m_partialCompletionTimer.Stop();
 342 }
 343
 344 void wxVListBoxComboPopup::OnComboDoubleClick()
 345 {
 346     // Cycle on dclick (disable saturation to allow true cycling).
 347     if ( !::wxGetKeyState(WXK_SHIFT) )
 348         HandleKey(WXK_DOWN,false);
 349     else
 350         HandleKey(WXK_UP,false);
 351 }
 352
 353 void wxVListBoxComboPopup::OnComboKeyEvent( wxKeyEvent& event )
 354 {
 355     // Saturated key movement on
 356     if ( !HandleKey(event.GetKeyCode(),true,
 357 #if wxUSE_UNICODE
 358         event.GetUnicodeKey()
 359 #else
 360         0
 361 #endif
 362         ) )
 363         event.Skip();
 364 }
 365
 366 void wxVListBoxComboPopup::OnPopup()
 367 {
 368     // *must* set value after size is set (this is because of a vlbox bug)
 369     wxVListBox::SetSelection(m_value);
 370 }
 371
 372 void wxVListBoxComboPopup::OnMouseMove(wxMouseEvent& event)
 373 {
 374     event.Skip();
 375
 376     // Move selection to cursor if it is inside the popup
 377
 378     int y = event.GetPosition().y;
 379     int fromBottom = GetClientSize().y - y;
 380
 381     // Since in any case we need to find out if the last item is only
 382     // partially visible, we might just as well replicate the HitTest
 383     // loop here.
 384     const size_t lineMax = GetVisibleEnd();
 385     for ( size_t line = GetVisibleBegin(); line < lineMax; line++ )
 386     {
 387         y -= OnGetLineHeight(line);
 388         if ( y < 0 )
 389         {
 390             // Only change selection if item is fully visible
 391             if ( (y + fromBottom) >= 0 )
 392             {
 393                 wxVListBox::SetSelection((int)line);
 394                 return;
 395             }
 396         }
 397     }
 398 }
 399
 400 void wxVListBoxComboPopup::OnLeftClick(wxMouseEvent& WXUNUSED(event))
 401 {
 402     DismissWithEvent();
 403 }
 404
 405 void wxVListBoxComboPopup::OnKey(wxKeyEvent& event)
 406 {
 407     // Select item if ENTER is pressed
 408     if ( event.GetKeyCode() == WXK_RETURN || event.GetKeyCode() == WXK_NUMPAD_ENTER )
 409     {
 410         DismissWithEvent();
 411     }
 412     // Hide popup if ESC is pressed
 413     else if ( event.GetKeyCode() == WXK_ESCAPE )
 414     {
 415         StopPartialCompletion();
 416         Dismiss();
 417     }
 418     else
 419     {
 420         int comboStyle = m_combo->GetWindowStyle();
 421         int keycode = event.GetKeyCode();
 422         // Process partial completion key codes here, but not the arrow keys as the base class will do that for us
 423         if ((comboStyle && wxCB_READONLY) &&
 424             (keycode >= WXK_SPACE) && (keycode <=255) && (keycode != WXK_DELETE) && wxIsprint(keycode))
 425         {
 426             OnComboKeyEvent(event);
 427             SetSelection(m_value); // ensure the highlight bar moves
 428         }
 429         else
 430             event.Skip();
 431     }
 432 }
 433
 434 void wxVListBoxComboPopup::Insert( const wxString& item, int pos )
 435 {
 436     // Need to change selection?
 437     wxString strValue;
 438     if ( !(m_combo->GetWindowStyle() & wxCB_READONLY) &&
 439          m_combo->GetValue() == item )
 440     {
 441         m_value = pos;
 442     }
 443
 444     m_strings.Insert(item,pos);
 445     m_widths.Insert(-1,pos);
 446     m_widthsDirty = true;
 447
 448     if ( IsCreated() )
 449         wxVListBox::SetItemCount( wxVListBox::GetItemCount()+1 );
 450 }
 451
 452 int wxVListBoxComboPopup::Append(const wxString& item)
 453 {
 454     int pos = (int)m_strings.GetCount();
 455
 456     if ( m_combo->GetWindowStyle() & wxCB_SORT )
 457     {
 458         // Find position
 459         // TODO: Could be optimized with binary search
 460         wxArrayString strings = m_strings;
 461         unsigned int i;
 462
 463         for ( i=0; i<strings.GetCount(); i++ )
 464         {
 465             if ( item.Cmp(strings.Item(i)) < 0 )
 466             {
 467                 pos = (int)i;
 468                 break;
 469             }
 470         }
 471     }
 472
 473     Insert(item,pos);
 474
 475     return pos;
 476 }
 477
 478 void wxVListBoxComboPopup::Clear()
 479 {
 480     wxASSERT(m_combo);
 481
 482     m_strings.Empty();
 483     m_widths.Empty();
 484
 485     m_widestWidth = 0;
 486     m_widestItem = -1;
 487
 488     ClearClientDatas();
 489
 490     m_value = wxNOT_FOUND;
 491
 492     if ( IsCreated() )
 493         wxVListBox::SetItemCount(0);
 494 }
 495
 496 void wxVListBoxComboPopup::ClearClientDatas()
 497 {
 498     if ( m_clientDataItemsType == wxClientData_Object )
 499     {
 500         size_t i;
 501         for ( i=0; i<m_clientDatas.GetCount(); i++ )
 502             delete (wxClientData*) m_clientDatas[i];
 503     }
 504
 505     m_clientDatas.Empty();
 506 }
 507
 508 void wxVListBoxComboPopup::SetItemClientData( unsigned int n,
 509                                               void* clientData,
 510                                               wxClientDataType clientDataItemsType )
 511 {
 512     // It should be sufficient to update this variable only here
 513     m_clientDataItemsType = clientDataItemsType;
 514
 515     m_clientDatas.SetCount(n+1,NULL);
 516     m_clientDatas[n] = clientData;
 517
 518     ItemWidthChanged(n);
 519 }
 520
 521 void* wxVListBoxComboPopup::GetItemClientData(unsigned int n) const
 522 {
 523     if ( m_clientDatas.GetCount() > n )
 524         return m_clientDatas[n];
 525
 526     return NULL;
 527 }
 528
 529 void wxVListBoxComboPopup::Delete( unsigned int item )
 530 {
 531     // Remove client data, if set
 532     if ( m_clientDatas.GetCount() )
 533     {
 534         if ( m_clientDataItemsType == wxClientData_Object )
 535             delete (wxClientData*) m_clientDatas[item];
 536
 537         m_clientDatas.RemoveAt(item);
 538     }
 539
 540     m_strings.RemoveAt(item);
 541     m_widths.RemoveAt(item);
 542
 543     if ( (int)item == m_widestItem )
 544         m_findWidest = true;
 545
 546     if ( IsCreated() )
 547         wxVListBox::SetItemCount( wxVListBox::GetItemCount()-1 );
 548 }
 549
 550 int wxVListBoxComboPopup::FindString(const wxString& s, bool bCase) const
 551 {
 552     return m_strings.Index(s, bCase);
 553 }
 554
 555 unsigned int wxVListBoxComboPopup::GetCount() const
 556 {
 557     return m_strings.GetCount();
 558 }
 559
 560 wxString wxVListBoxComboPopup::GetString( int item ) const
 561 {
 562     return m_strings[item];
 563 }
 564
 565 void wxVListBoxComboPopup::SetString( int item, const wxString& str )
 566 {
 567     m_strings[item] = str;
 568     ItemWidthChanged(item);
 569 }
 570
 571 wxString wxVListBoxComboPopup::GetStringValue() const
 572 {
 573     if ( m_value >= 0 )
 574         return m_strings[m_value];
 575     return wxEmptyString;
 576 }
 577
 578 void wxVListBoxComboPopup::SetSelection( int item )
 579 {
 580     wxCHECK_RET( item == wxNOT_FOUND || ((unsigned int)item < GetCount()),
 581                  wxT("invalid index in wxVListBoxComboPopup::SetSelection") );
 582
 583     m_value = item;
 584
 585     if ( IsCreated() )
 586         wxVListBox::SetSelection(item);
 587 }
 588
 589 int wxVListBoxComboPopup::GetSelection() const
 590 {
 591     return m_value;
 592 }
 593
 594 void wxVListBoxComboPopup::SetStringValue( const wxString& value )
 595 {
 596     int index = m_strings.Index(value);
 597
 598     m_value = index;
 599
 600     if ( index >= -1 && index < (int)wxVListBox::GetItemCount() )
 601         wxVListBox::SetSelection(index);
 602 }
 603
 604 void wxVListBoxComboPopup::CalcWidths()
 605 {
 606     bool doFindWidest = m_findWidest;
 607
 608     // Measure items with dirty width.
 609     if ( m_widthsDirty )
 610     {
 611         unsigned int i;
 612         unsigned int n = m_widths.GetCount();
 613         int dirtyHandled = 0;
 614         wxArrayInt& widths = m_widths;
 615
 616         // I think using wxDC::GetTextExtent is faster than
 617         // wxWindow::GetTextExtent (assuming same dc is used
 618         // for all calls, as we do here).
 619         wxClientDC dc(m_combo);
 620         dc.SetFont(m_useFont);
 621
 622         for ( i=0; i<n; i++ )
 623         {
 624             if ( widths[i] < 0 )
 625             {
 626                 wxCoord x = OnMeasureItemWidth(i);
 627
 628                 if ( x < 0 )
 629                 {
 630                     const wxString& text = m_strings[i];
 631
 632                     // To make sure performance won't suck in extreme scenarios,
 633                     // we'll estimate length after some arbitrary number of items
 634                     // have been checked precily.
 635                     if ( dirtyHandled < 1024 )
 636                     {
 637                         wxCoord y;
 638                         dc.GetTextExtent(text, &x, &y, 0, 0);
 639                         x += 4;
 640                     }
 641                     else
 642                     {
 643                         x = text.length() * (dc.GetCharWidth()+1);
 644                     }
 645                 }
 646
 647                 widths[i] = x;
 648
 649                 if ( x >= m_widestWidth )
 650                 {
 651                     m_widestWidth = x;
 652                     m_widestItem = (int)i;
 653                 }
 654                 else if ( (int)i == m_widestItem )
 655                 {
 656                     // Width of previously widest item has been decreased, so
 657                     // we'll have to check all to find current widest item.
 658                     doFindWidest = true;
 659                 }
 660
 661                 dirtyHandled++;
 662             }
 663         }
 664
 665         m_widthsDirty = false;
 666     }
 667
 668     if ( doFindWidest )
 669     {
 670         unsigned int i;
 671         unsigned int n = m_widths.GetCount();
 672
 673         int bestWidth = -1;
 674         int bestIndex = -1;
 675
 676         for ( i=0; i<n; i++ )
 677         {
 678             int w = m_widths[i];
 679             if ( w > bestWidth )
 680             {
 681                 bestIndex = (int)i;
 682                 bestWidth = w;
 683             }
 684         }
 685
 686         m_widestWidth = bestWidth;
 687         m_widestItem = bestIndex;
 688
 689         m_findWidest = false;
 690     }
 691 }
 692
 693 wxSize wxVListBoxComboPopup::GetAdjustedSize( int minWidth, int prefHeight, int maxHeight )
 694 {
 695     int height = 250;
 696
 697     if ( m_strings.GetCount() )
 698     {
 699         if ( prefHeight > 0 )
 700             height = prefHeight;
 701
 702         if ( height > maxHeight )
 703             height = maxHeight;
 704
 705         int totalHeight = GetTotalHeight(); // + 3;
 706         if ( height >= totalHeight )
 707         {
 708             height = totalHeight;
 709         }
 710         else
 711         {
 712             // Adjust height to a multiple of the height of the first item
 713             // NB: Calculations that take variable height into account
 714             //     are unnecessary.
 715             int fih = GetLineHeight(0);
 716             int shown = height/fih;
 717             height = shown * fih;
 718         }
 719     }
 720     else
 721         height = 50;
 722
 723     CalcWidths();
 724
 725     // Take scrollbar into account in width calculations
 726     int widestWidth = m_widestWidth + wxSystemSettings::GetMetric(wxSYS_VSCROLL_X);
 727     return wxSize(minWidth > widestWidth ? minWidth : widestWidth,
 728                   height+2);
 729 }
 730
 731 //void wxVListBoxComboPopup::Populate( int n, const wxString choices[] )
 732 void wxVListBoxComboPopup::Populate( const wxArrayString& choices )
 733 {
 734     int i;
 735
 736     int n = choices.GetCount();
 737
 738     for ( i=0; i<n; i++ )
 739     {
 740         const wxString& item = choices.Item(i);
 741         m_strings.Add(item);
 742     }
 743
 744     m_widths.SetCount(n,-1);
 745     m_widthsDirty = true;
 746
 747     if ( IsCreated() )
 748         wxVListBox::SetItemCount(n);
 749
 750     // Sort the initial choices
 751     if ( m_combo->GetWindowStyle() & wxCB_SORT )
 752         m_strings.Sort();
 753
 754     // Find initial selection
 755     wxString strValue = m_combo->GetValue();
 756     if ( strValue.length() )
 757         m_value = m_strings.Index(strValue);
 758 }
 759
 760 // ----------------------------------------------------------------------------
 761 // wxOwnerDrawnComboBox
 762 // ----------------------------------------------------------------------------
 763
 764
 765 BEGIN_EVENT_TABLE(wxOwnerDrawnComboBox, wxComboCtrl)
 766 END_EVENT_TABLE()
 767
 768
 769 IMPLEMENT_DYNAMIC_CLASS2(wxOwnerDrawnComboBox, wxComboCtrl, wxControlWithItems)
 770
 771 void wxOwnerDrawnComboBox::Init()
 772 {
 773 }
 774
 775 bool wxOwnerDrawnComboBox::Create(wxWindow *parent,
 776                                   wxWindowID id,
 777                                   const wxString& value,
 778                                   const wxPoint& pos,
 779                                   const wxSize& size,
 780                                   long style,
 781                                   const wxValidator& validator,
 782                                   const wxString& name)
 783 {
 784     return wxComboCtrl::Create(parent,id,value,pos,size,style,validator,name);
 785 }
 786
 787 wxOwnerDrawnComboBox::wxOwnerDrawnComboBox(wxWindow *parent,
 788                                            wxWindowID id,
 789                                            const wxString& value,
 790                                            const wxPoint& pos,
 791                                            const wxSize& size,
 792                                            const wxArrayString& choices,
 793                                            long style,
 794                                            const wxValidator& validator,
 795                                            const wxString& name)
 796     : wxComboCtrl()
 797 {
 798     Init();
 799
 800     Create(parent,id,value,pos,size,choices,style, validator, name);
 801 }
 802
 803 bool wxOwnerDrawnComboBox::Create(wxWindow *parent,
 804                                   wxWindowID id,
 805                                   const wxString& value,
 806                                   const wxPoint& pos,
 807                                   const wxSize& size,
 808                                   const wxArrayString& choices,
 809                                   long style,
 810                                   const wxValidator& validator,
 811                                   const wxString& name)
 812 {
 813     m_initChs = choices;
 814     //wxCArrayString chs(choices);
 815
 816     //return Create(parent, id, value, pos, size, chs.GetCount(),
 817     //              chs.GetStrings(), style, validator, name);
 818     return Create(parent, id, value, pos, size, 0,
 819                   NULL, style, validator, name);
 820 }
 821
 822 bool wxOwnerDrawnComboBox::Create(wxWindow *parent,
 823                                   wxWindowID id,
 824                                   const wxString& value,
 825                                   const wxPoint& pos,
 826                                   const wxSize& size,
 827                                   int n,
 828                                   const wxString choices[],
 829                                   long style,
 830                                   const wxValidator& validator,
 831                                   const wxString& name)
 832 {
 833
 834     if ( !Create(parent, id, value, pos, size, style,
 835                  validator, name) )
 836     {
 837         return false;
 838     }
 839
 840     int i;
 841     for ( i=0; i<n; i++ )
 842         m_initChs.Add(choices[i]);
 843
 844     return true;
 845 }
 846
 847 wxOwnerDrawnComboBox::~wxOwnerDrawnComboBox()
 848 {
 849     if ( m_popupInterface )
 850         GetVListBoxComboPopup()->ClearClientDatas();
 851 }
 852
 853 void wxOwnerDrawnComboBox::DoSetPopupControl(wxComboPopup* popup)
 854 {
 855     if ( !popup )
 856     {
 857         popup = new wxVListBoxComboPopup();
 858     }
 859
 860     wxComboCtrl::DoSetPopupControl(popup);
 861
 862     wxASSERT(popup);
 863
 864     // Add initial choices to the wxVListBox
 865     if ( !GetVListBoxComboPopup()->GetCount() )
 866     {
 867         GetVListBoxComboPopup()->Populate(m_initChs);
 868         m_initChs.Clear();
 869     }
 870 }
 871
 872 // ----------------------------------------------------------------------------
 873 // wxOwnerDrawnComboBox item manipulation methods
 874 // ----------------------------------------------------------------------------
 875
 876 void wxOwnerDrawnComboBox::Clear()
 877 {
 878     EnsurePopupControl();
 879
 880     GetVListBoxComboPopup()->Clear();
 881
 882     SetValue(wxEmptyString);
 883 }
 884
 885 void wxOwnerDrawnComboBox::Delete(unsigned int n)
 886 {
 887     wxCHECK_RET( IsValid(n), _T("invalid index in wxOwnerDrawnComboBox::Delete") );
 888
 889     if ( GetSelection() == (int) n )
 890         SetValue(wxEmptyString);
 891
 892     GetVListBoxComboPopup()->Delete(n);
 893 }
 894
 895 unsigned int wxOwnerDrawnComboBox::GetCount() const
 896 {
 897     if ( !m_popupInterface )
 898         return m_initChs.GetCount();
 899
 900     return GetVListBoxComboPopup()->GetCount();
 901 }
 902
 903 wxString wxOwnerDrawnComboBox::GetString(unsigned int n) const
 904 {
 905     wxCHECK_MSG( IsValid(n), wxEmptyString, _T("invalid index in wxOwnerDrawnComboBox::GetString") );
 906
 907     if ( !m_popupInterface )
 908         return m_initChs.Item(n);
 909
 910     return GetVListBoxComboPopup()->GetString(n);
 911 }
 912
 913 void wxOwnerDrawnComboBox::SetString(unsigned int n, const wxString& s)
 914 {
 915     EnsurePopupControl();
 916
 917     wxCHECK_RET( IsValid(n), _T("invalid index in wxOwnerDrawnComboBox::SetString") );
 918
 919     GetVListBoxComboPopup()->SetString(n,s);
 920 }
 921
 922 int wxOwnerDrawnComboBox::FindString(const wxString& s, bool bCase) const
 923 {
 924     if ( !m_popupInterface )
 925         return m_initChs.Index(s, bCase);
 926
 927     return GetVListBoxComboPopup()->FindString(s, bCase);
 928 }
 929
 930 void wxOwnerDrawnComboBox::Select(int n)
 931 {
 932     EnsurePopupControl();
 933
 934     wxCHECK_RET( (n == wxNOT_FOUND) || IsValid(n), _T("invalid index in wxOwnerDrawnComboBox::Select") );
 935
 936     GetVListBoxComboPopup()->SetSelection(n);
 937
 938     wxString str;
 939     if ( n >= 0 )
 940         str = GetVListBoxComboPopup()->GetString(n);
 941
 942     // Refresh text portion in control
 943     if ( m_text )
 944         m_text->SetValue( str );
 945     else
 946         m_valueString = str;
 947
 948     Refresh();
 949 }
 950
 951 int wxOwnerDrawnComboBox::GetSelection() const
 952 {
 953     if ( !m_popupInterface )
 954         return m_initChs.Index(m_valueString);
 955
 956     return GetVListBoxComboPopup()->GetSelection();
 957 }
 958
 959 int wxOwnerDrawnComboBox::DoAppend(const wxString& item)
 960 {
 961     EnsurePopupControl();
 962     wxASSERT(m_popupInterface);
 963
 964     return GetVListBoxComboPopup()->Append(item);
 965 }
 966
 967 int wxOwnerDrawnComboBox::DoInsert(const wxString& item, unsigned int pos)
 968 {
 969     EnsurePopupControl();
 970
 971     wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
 972     wxCHECK_MSG(IsValidInsert(pos), -1, wxT("invalid index"));
 973
 974     GetVListBoxComboPopup()->Insert(item,pos);
 975
 976     return pos;
 977 }
 978
 979 void wxOwnerDrawnComboBox::DoSetItemClientData(unsigned int n, void* clientData)
 980 {
 981     EnsurePopupControl();
 982
 983     GetVListBoxComboPopup()->SetItemClientData(n,clientData,m_clientDataItemsType);
 984 }
 985
 986 void* wxOwnerDrawnComboBox::DoGetItemClientData(unsigned int n) const
 987 {
 988     if ( !m_popupInterface )
 989         return NULL;
 990
 991     return GetVListBoxComboPopup()->GetItemClientData(n);
 992 }
 993
 994 void wxOwnerDrawnComboBox::DoSetItemClientObject(unsigned int n, wxClientData* clientData)
 995 {
 996     DoSetItemClientData(n, (void*) clientData);
 997 }
 998
 999 wxClientData* wxOwnerDrawnComboBox::DoGetItemClientObject(unsigned int n) const
1000 {
1001     return (wxClientData*) DoGetItemClientData(n);
1002 }
1003
1004 // ----------------------------------------------------------------------------
1005 // wxOwnerDrawnComboBox item drawing and measuring default implementations
1006 // ----------------------------------------------------------------------------
1007
1008 void wxOwnerDrawnComboBox::OnDrawItem( wxDC& dc,
1009                                        const wxRect& rect,
1010                                        int item,
1011                                        int flags ) const
1012 {
1013     if ( flags & wxODCB_PAINTING_CONTROL )
1014     {
1015         dc.DrawText( GetValue(),
1016                      rect.x + GetTextIndent(),
1017                      (rect.height-dc.GetCharHeight())/2 + rect.y );
1018     }
1019     else
1020     {
1021         dc.DrawText( GetVListBoxComboPopup()->GetString(item), rect.x + 2, rect.y );
1022     }
1023 }
1024
1025 wxCoord wxOwnerDrawnComboBox::OnMeasureItem( size_t WXUNUSED(item) ) const
1026 {
1027     return -1;
1028 }
1029
1030 wxCoord wxOwnerDrawnComboBox::OnMeasureItemWidth( size_t WXUNUSED(item) ) const
1031 {
1032     return -1;
1033 }
1034
1035 void wxOwnerDrawnComboBox::OnDrawBackground(wxDC& dc, const wxRect& rect, int item, int flags) const
1036 {
1037     // we need to render selected and current items differently
1038     if ( GetVListBoxComboPopup()->IsCurrent((size_t)item) )
1039     {
1040         DrawFocusBackground(dc,
1041                             rect,
1042                             (flags&wxODCB_PAINTING_CONTROL?0:wxCONTROL_ISSUBMENU) |
1043                             wxCONTROL_SELECTED);
1044     }
1045     //else: do nothing for the normal items
1046 }
1047
1048 #endif // wxUSE_ODCOMBOBOX