src/generic/odcombo.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/odcombo.cpp
   3 // Purpose:     wxOwnerDrawnComboBox, wxVListBoxComboPopup
   4 // Author:      Jaakko Salli
   5 // Modified by:
   6 // Created:     Apr-30-2006
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2005 Jaakko Salli
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #if wxUSE_ODCOMBOBOX
  27
  28 #include "wx/odcombo.h"
  29
  30 #ifndef WX_PRECOMP
  31     #include "wx/log.h"
  32     #include "wx/combobox.h"
  33     #include "wx/dcclient.h"
  34     #include "wx/settings.h"
  35     #include "wx/dialog.h"
  36 #endif
  37
  38 #include "wx/combo.h"
  39
  40 // ============================================================================
  41 // implementation
  42 // ============================================================================
  43
  44 // time in milliseconds before partial completion buffer drops
  45 #define wxODCB_PARTIAL_COMPLETION_TIME 1000
  46
  47 // ----------------------------------------------------------------------------
  48 // wxVListBoxComboPopup is a wxVListBox customized to act as a popup control
  49 //
  50 // ----------------------------------------------------------------------------
  51
  52
  53 BEGIN_EVENT_TABLE(wxVListBoxComboPopup, wxVListBox)
  54     EVT_MOTION(wxVListBoxComboPopup::OnMouseMove)
  55     EVT_KEY_DOWN(wxVListBoxComboPopup::OnKey)
  56     EVT_LEFT_UP(wxVListBoxComboPopup::OnLeftClick)
  57 END_EVENT_TABLE()
  58
  59
  60 void wxVListBoxComboPopup::Init()
  61 {
  62     m_widestWidth = 0;
  63     m_widestItem = -1;
  64     m_widthsDirty = false;
  65     m_findWidest = false;
  66     m_itemHeight = 0;
  67     m_value = -1;
  68     m_itemHover = -1;
  69     m_clientDataItemsType = wxClientData_None;
  70     m_partialCompletionString = wxEmptyString;
  71 }
  72
  73 bool wxVListBoxComboPopup::Create(wxWindow* parent)
  74 {
  75     if ( !wxVListBox::Create(parent,
  76                              wxID_ANY,
  77                              wxDefaultPosition,
  78                              wxDefaultSize,
  79                              wxBORDER_SIMPLE | wxLB_INT_HEIGHT | wxWANTS_CHARS) )
  80         return false;
  81
  82     m_useFont = m_combo->GetFont();
  83
  84     wxVListBox::SetItemCount(m_strings.GetCount());
  85
  86     // TODO: Move this to SetFont
  87     m_itemHeight = GetCharHeight() + 0;
  88
  89     return true;
  90 }
  91
  92 wxVListBoxComboPopup::~wxVListBoxComboPopup()
  93 {
  94     Clear();
  95 }
  96
  97 bool wxVListBoxComboPopup::LazyCreate()
  98 {
  99     // NB: There is a bug with wxVListBox that can be avoided by creating
 100     //     it later (bug causes empty space to be shown if initial selection
 101     //     is at the end of a list longer than the control can show at once).
 102     return true;
 103 }
 104
 105 // paint the control itself
 106 void wxVListBoxComboPopup::PaintComboControl( wxDC& dc, const wxRect& rect )
 107 {
 108     if ( !(m_combo->GetWindowStyle() & wxODCB_STD_CONTROL_PAINT) )
 109     {
 110         OnDrawBg(dc,rect,m_value,wxODCB_PAINTING_CONTROL);
 111         if ( m_value >= 0 )
 112         {
 113             OnDrawItem(dc,rect,m_value,wxODCB_PAINTING_CONTROL);
 114             return;
 115         }
 116     }
 117
 118     wxComboPopup::PaintComboControl(dc,rect);
 119 }
 120
 121 void wxVListBoxComboPopup::OnDrawItem(wxDC& dc, const wxRect& rect, size_t n) const
 122 {
 123     // TODO: Maybe this code could be moved to wxVListBox::OnPaint?
 124     dc.SetFont(m_useFont);
 125
 126     // Set correct text colour for selected items
 127     if ( wxVListBox::GetSelection() == (int) n )
 128         dc.SetTextForeground( wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT) );
 129     else
 130         dc.SetTextForeground( wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT) );
 131
 132     OnDrawItem(dc,rect,(int)n,0);
 133 }
 134
 135 wxCoord wxVListBoxComboPopup::OnMeasureItem(size_t n) const
 136 {
 137     wxOwnerDrawnComboBox* combo = (wxOwnerDrawnComboBox*) m_combo;
 138
 139     wxASSERT_MSG( combo->IsKindOf(CLASSINFO(wxOwnerDrawnComboBox)),
 140                   wxT("you must subclass wxVListBoxComboPopup for drawing and measuring methods") );
 141
 142     wxCoord h = combo->OnMeasureItem(n);
 143     if ( h < 0 )
 144         h = m_itemHeight;
 145     return h;
 146 }
 147
 148 wxCoord wxVListBoxComboPopup::OnMeasureItemWidth(size_t n) const
 149 {
 150     wxOwnerDrawnComboBox* combo = (wxOwnerDrawnComboBox*) m_combo;
 151
 152     wxASSERT_MSG( combo->IsKindOf(CLASSINFO(wxOwnerDrawnComboBox)),
 153                   wxT("you must subclass wxVListBoxComboPopup for drawing and measuring methods") );
 154
 155     return combo->OnMeasureItemWidth(n);
 156 }
 157
 158 void wxVListBoxComboPopup::OnDrawBg( wxDC& dc,
 159                                      const wxRect& rect,
 160                                      int item,
 161                                      int flags ) const
 162 {
 163     wxOwnerDrawnComboBox* combo = (wxOwnerDrawnComboBox*) m_combo;
 164
 165     wxASSERT_MSG( combo->IsKindOf(CLASSINFO(wxOwnerDrawnComboBox)),
 166                   wxT("you must subclass wxVListBoxComboPopup for drawing and measuring methods") );
 167
 168     combo->OnDrawBackground(dc,rect,item,flags);
 169 }
 170
 171 void wxVListBoxComboPopup::OnDrawBackground(wxDC& dc, const wxRect& rect, size_t n) const
 172 {
 173     OnDrawBg(dc,rect,(int)n,0);
 174 }
 175
 176 // This is called from wxVListBoxComboPopup::OnDrawItem, with text colour and font prepared
 177 void wxVListBoxComboPopup::OnDrawItem( wxDC& dc, const wxRect& rect, int item, int flags ) const
 178 {
 179     wxOwnerDrawnComboBox* combo = (wxOwnerDrawnComboBox*) m_combo;
 180
 181     wxASSERT_MSG( combo->IsKindOf(CLASSINFO(wxOwnerDrawnComboBox)),
 182                   wxT("you must subclass wxVListBoxComboPopup for drawing and measuring methods") );
 183
 184     combo->OnDrawItem(dc,rect,item,flags);
 185 }
 186
 187 void wxVListBoxComboPopup::DismissWithEvent()
 188 {
 189     StopPartialCompletion();
 190
 191     int selection = wxVListBox::GetSelection();
 192
 193     Dismiss();
 194
 195     wxString valStr;
 196     if ( selection != wxNOT_FOUND )
 197         valStr = m_strings[selection];
 198     else
 199         valStr = wxEmptyString;
 200
 201     m_value = selection;
 202
 203     if ( valStr != m_combo->GetValue() )
 204         m_combo->SetValue(valStr);
 205
 206     SendComboBoxEvent(selection);
 207 }
 208
 209 void wxVListBoxComboPopup::SendComboBoxEvent( int selection )
 210 {
 211     wxCommandEvent evt(wxEVT_COMMAND_COMBOBOX_SELECTED,m_combo->GetId());
 212
 213     evt.SetEventObject(m_combo);
 214
 215     evt.SetInt(selection);
 216
 217     // Set client data, if any
 218     if ( selection >= 0 && (int)m_clientDatas.GetCount() > selection )
 219     {
 220         void* clientData = m_clientDatas[selection];
 221         if ( m_clientDataItemsType == wxClientData_Object )
 222             evt.SetClientObject((wxClientData*)clientData);
 223         else
 224             evt.SetClientData(clientData);
 225     }
 226
 227     m_combo->GetEventHandler()->AddPendingEvent(evt);
 228 }
 229
 230 // returns true if key was consumed
 231 bool wxVListBoxComboPopup::HandleKey( int keycode, bool saturate, wxChar unicode )
 232 {
 233     int value = m_value;
 234     int itemCount = GetCount();
 235     int comboStyle = m_combo->GetWindowStyle();
 236
 237     // this is the character equivalent of the code
 238     wxChar keychar=0;
 239     if ((keycode >= WXK_SPACE) && (keycode <=255) && (keycode != WXK_DELETE) && wxIsprint(keycode))
 240     {
 241         keychar = (wxChar)keycode;
 242     }
 243     else if (unicode>0)
 244     {
 245         keychar = unicode;
 246     }
 247
 248     if ( keycode == WXK_DOWN || keycode == WXK_RIGHT )
 249     {
 250         value++;
 251         StopPartialCompletion();
 252     }
 253     else if ( keycode == WXK_UP || keycode == WXK_LEFT )
 254     {
 255         value--;
 256         StopPartialCompletion();
 257     }
 258     else if ( keycode == WXK_PAGEDOWN )
 259     {
 260         value+=10;
 261         StopPartialCompletion();
 262     }
 263     else if ( keycode == WXK_PAGEUP )
 264     {
 265         value-=10;
 266         StopPartialCompletion();
 267     }
 268     else if ( comboStyle & wxCB_READONLY )
 269     {
 270         // Try partial completion
 271
 272         // find the new partial completion string
 273 #if wxUSE_TIMER
 274         if (m_partialCompletionTimer.IsRunning())
 275             m_partialCompletionString+=wxString(keychar);
 276         else
 277 #endif // wxUSE_TIMER
 278             m_partialCompletionString=wxString(keychar);
 279
 280         // now search through the values to see if this is found
 281         int found = -1;
 282         unsigned int length=m_partialCompletionString.length();
 283         int i;
 284         for (i=0; i<itemCount; i++)
 285         {
 286             wxString item=GetString(i);
 287             if (( item.length() >= length) && (!  m_partialCompletionString.CmpNoCase(item.Left(length))))
 288             {
 289                 found=i;
 290                 break;
 291             }
 292         }
 293
 294         if (found<0)
 295         {
 296             StopPartialCompletion();
 297             ::wxBell();
 298             return true; // to stop the first value being set
 299         }
 300         else
 301         {
 302             value=i;
 303 #if wxUSE_TIMER
 304             m_partialCompletionTimer.Start(wxODCB_PARTIAL_COMPLETION_TIME, true);
 305 #endif // wxUSE_TIMER
 306         }
 307     }
 308     else
 309         return false;
 310
 311     if ( saturate )
 312     {
 313         if ( value >= itemCount )
 314             value = itemCount - 1;
 315         else if ( value < 0 )
 316             value = 0;
 317     }
 318     else
 319     {
 320         if ( value >= itemCount )
 321             value -= itemCount;
 322         else if ( value < 0 )
 323             value += itemCount;
 324     }
 325
 326     if ( value == m_value )
 327         // Even if value was same, don't skip the event
 328         // (good for consistency)
 329         return true;
 330
 331     m_value = value;
 332
 333     if ( value >= 0 )
 334         m_combo->SetValue(m_strings[value]);
 335
 336     SendComboBoxEvent(m_value);
 337
 338     return true;
 339 }
 340
 341 // stop partial completion
 342 void wxVListBoxComboPopup::StopPartialCompletion()
 343 {
 344     m_partialCompletionString = wxEmptyString;
 345 #if wxUSE_TIMER
 346     m_partialCompletionTimer.Stop();
 347 #endif // wxUSE_TIMER
 348 }
 349
 350 void wxVListBoxComboPopup::OnComboDoubleClick()
 351 {
 352     // Cycle on dclick (disable saturation to allow true cycling).
 353     if ( !::wxGetKeyState(WXK_SHIFT) )
 354         HandleKey(WXK_DOWN,false);
 355     else
 356         HandleKey(WXK_UP,false);
 357 }
 358
 359 void wxVListBoxComboPopup::OnComboKeyEvent( wxKeyEvent& event )
 360 {
 361     // Saturated key movement on
 362     if ( !HandleKey(event.GetKeyCode(),true,
 363 #if wxUSE_UNICODE
 364         event.GetUnicodeKey()
 365 #else
 366         0
 367 #endif
 368         ) )
 369         event.Skip();
 370 }
 371
 372 void wxVListBoxComboPopup::OnPopup()
 373 {
 374     // *must* set value after size is set (this is because of a vlbox bug)
 375     wxVListBox::SetSelection(m_value);
 376 }
 377
 378 void wxVListBoxComboPopup::OnMouseMove(wxMouseEvent& event)
 379 {
 380     event.Skip();
 381
 382     // Move selection to cursor if it is inside the popup
 383
 384     int y = event.GetPosition().y;
 385     int fromBottom = GetClientSize().y - y;
 386
 387     // Since in any case we need to find out if the last item is only
 388     // partially visible, we might just as well replicate the HitTest
 389     // loop here.
 390     const size_t lineMax = GetVisibleEnd();
 391     for ( size_t line = GetVisibleBegin(); line < lineMax; line++ )
 392     {
 393         y -= OnGetLineHeight(line);
 394         if ( y < 0 )
 395         {
 396             // Only change selection if item is fully visible
 397             if ( (y + fromBottom) >= 0 )
 398             {
 399                 wxVListBox::SetSelection((int)line);
 400                 return;
 401             }
 402         }
 403     }
 404 }
 405
 406 void wxVListBoxComboPopup::OnLeftClick(wxMouseEvent& WXUNUSED(event))
 407 {
 408     DismissWithEvent();
 409 }
 410
 411 void wxVListBoxComboPopup::OnKey(wxKeyEvent& event)
 412 {
 413     // Hide popup if certain key or key combination was pressed
 414     if ( m_combo->IsKeyPopupToggle(event) )
 415     {
 416         StopPartialCompletion();
 417         Dismiss();
 418     }
 419     else if ( event.AltDown() )
 420     {
 421         // On both wxGTK and wxMSW, pressing Alt down seems to
 422         // completely freeze things in popup (ie. arrow keys and
 423         // enter won't work).
 424         return;
 425     }
 426     // Select item if ENTER is pressed
 427     else if ( event.GetKeyCode() == WXK_RETURN || event.GetKeyCode() == WXK_NUMPAD_ENTER )
 428     {
 429         DismissWithEvent();
 430     }
 431     else
 432     {
 433         int comboStyle = m_combo->GetWindowStyle();
 434         int keycode = event.GetKeyCode();
 435         // Process partial completion key codes here, but not the arrow keys as the base class will do that for us
 436         if ((comboStyle & wxCB_READONLY) &&
 437             (keycode >= WXK_SPACE) && (keycode <=255) && (keycode != WXK_DELETE) && wxIsprint(keycode))
 438         {
 439             OnComboKeyEvent(event);
 440             SetSelection(m_value); // ensure the highlight bar moves
 441         }
 442         else
 443             event.Skip();
 444     }
 445 }
 446
 447 void wxVListBoxComboPopup::Insert( const wxString& item, int pos )
 448 {
 449     // Need to change selection?
 450     wxString strValue;
 451     if ( !(m_combo->GetWindowStyle() & wxCB_READONLY) &&
 452          m_combo->GetValue() == item )
 453     {
 454         m_value = pos;
 455     }
 456
 457     m_strings.Insert(item,pos);
 458     m_widths.Insert(-1,pos);
 459     m_widthsDirty = true;
 460
 461     if ( IsCreated() )
 462         wxVListBox::SetItemCount( wxVListBox::GetItemCount()+1 );
 463 }
 464
 465 int wxVListBoxComboPopup::Append(const wxString& item)
 466 {
 467     int pos = (int)m_strings.GetCount();
 468
 469     if ( m_combo->GetWindowStyle() & wxCB_SORT )
 470     {
 471         // Find position
 472         // TODO: Could be optimized with binary search
 473         wxArrayString strings = m_strings;
 474         unsigned int i;
 475
 476         for ( i=0; i<strings.GetCount(); i++ )
 477         {
 478             if ( item.Cmp(strings.Item(i)) < 0 )
 479             {
 480                 pos = (int)i;
 481                 break;
 482             }
 483         }
 484     }
 485
 486     Insert(item,pos);
 487
 488     return pos;
 489 }
 490
 491 void wxVListBoxComboPopup::Clear()
 492 {
 493     wxASSERT(m_combo);
 494
 495     m_strings.Empty();
 496     m_widths.Empty();
 497
 498     m_widestWidth = 0;
 499     m_widestItem = -1;
 500
 501     ClearClientDatas();
 502
 503     m_value = wxNOT_FOUND;
 504
 505     if ( IsCreated() )
 506         wxVListBox::SetItemCount(0);
 507 }
 508
 509 void wxVListBoxComboPopup::ClearClientDatas()
 510 {
 511     if ( m_clientDataItemsType == wxClientData_Object )
 512     {
 513         size_t i;
 514         for ( i=0; i<m_clientDatas.GetCount(); i++ )
 515             delete (wxClientData*) m_clientDatas[i];
 516     }
 517
 518     m_clientDatas.Empty();
 519 }
 520
 521 void wxVListBoxComboPopup::SetItemClientData( unsigned int n,
 522                                               void* clientData,
 523                                               wxClientDataType clientDataItemsType )
 524 {
 525     // It should be sufficient to update this variable only here
 526     m_clientDataItemsType = clientDataItemsType;
 527
 528     m_clientDatas.SetCount(n+1,NULL);
 529     m_clientDatas[n] = clientData;
 530
 531     ItemWidthChanged(n);
 532 }
 533
 534 void* wxVListBoxComboPopup::GetItemClientData(unsigned int n) const
 535 {
 536     if ( m_clientDatas.GetCount() > n )
 537         return m_clientDatas[n];
 538
 539     return NULL;
 540 }
 541
 542 void wxVListBoxComboPopup::Delete( unsigned int item )
 543 {
 544     // Remove client data, if set
 545     if ( m_clientDatas.GetCount() )
 546     {
 547         if ( m_clientDataItemsType == wxClientData_Object )
 548             delete (wxClientData*) m_clientDatas[item];
 549
 550         m_clientDatas.RemoveAt(item);
 551     }
 552
 553     m_strings.RemoveAt(item);
 554     m_widths.RemoveAt(item);
 555
 556     if ( (int)item == m_widestItem )
 557         m_findWidest = true;
 558
 559     if ( IsCreated() )
 560         wxVListBox::SetItemCount( wxVListBox::GetItemCount()-1 );
 561 }
 562
 563 int wxVListBoxComboPopup::FindString(const wxString& s, bool bCase) const
 564 {
 565     return m_strings.Index(s, bCase);
 566 }
 567
 568 unsigned int wxVListBoxComboPopup::GetCount() const
 569 {
 570     return m_strings.GetCount();
 571 }
 572
 573 wxString wxVListBoxComboPopup::GetString( int item ) const
 574 {
 575     return m_strings[item];
 576 }
 577
 578 void wxVListBoxComboPopup::SetString( int item, const wxString& str )
 579 {
 580     m_strings[item] = str;
 581     ItemWidthChanged(item);
 582 }
 583
 584 wxString wxVListBoxComboPopup::GetStringValue() const
 585 {
 586     if ( m_value >= 0 )
 587         return m_strings[m_value];
 588     return wxEmptyString;
 589 }
 590
 591 void wxVListBoxComboPopup::SetSelection( int item )
 592 {
 593     wxCHECK_RET( item == wxNOT_FOUND || ((unsigned int)item < GetCount()),
 594                  wxT("invalid index in wxVListBoxComboPopup::SetSelection") );
 595
 596     m_value = item;
 597
 598     if ( IsCreated() )
 599         wxVListBox::SetSelection(item);
 600 }
 601
 602 int wxVListBoxComboPopup::GetSelection() const
 603 {
 604     return m_value;
 605 }
 606
 607 void wxVListBoxComboPopup::SetStringValue( const wxString& value )
 608 {
 609     int index = m_strings.Index(value);
 610
 611     m_value = index;
 612
 613     if ( index >= -1 && index < (int)wxVListBox::GetItemCount() )
 614         wxVListBox::SetSelection(index);
 615 }
 616
 617 void wxVListBoxComboPopup::CalcWidths()
 618 {
 619     bool doFindWidest = m_findWidest;
 620
 621     // Measure items with dirty width.
 622     if ( m_widthsDirty )
 623     {
 624         unsigned int i;
 625         unsigned int n = m_widths.GetCount();
 626         int dirtyHandled = 0;
 627         wxArrayInt& widths = m_widths;
 628
 629         // I think using wxDC::GetTextExtent is faster than
 630         // wxWindow::GetTextExtent (assuming same dc is used
 631         // for all calls, as we do here).
 632         wxClientDC dc(m_combo);
 633         dc.SetFont(m_useFont);
 634
 635         for ( i=0; i<n; i++ )
 636         {
 637             if ( widths[i] < 0 )
 638             {
 639                 wxCoord x = OnMeasureItemWidth(i);
 640
 641                 if ( x < 0 )
 642                 {
 643                     const wxString& text = m_strings[i];
 644
 645                     // To make sure performance won't suck in extreme scenarios,
 646                     // we'll estimate length after some arbitrary number of items
 647                     // have been checked precily.
 648                     if ( dirtyHandled < 1024 )
 649                     {
 650                         wxCoord y;
 651                         dc.GetTextExtent(text, &x, &y, 0, 0);
 652                         x += 4;
 653                     }
 654                     else
 655                     {
 656                         x = text.length() * (dc.GetCharWidth()+1);
 657                     }
 658                 }
 659
 660                 widths[i] = x;
 661
 662                 if ( x >= m_widestWidth )
 663                 {
 664                     m_widestWidth = x;
 665                     m_widestItem = (int)i;
 666                 }
 667                 else if ( (int)i == m_widestItem )
 668                 {
 669                     // Width of previously widest item has been decreased, so
 670                     // we'll have to check all to find current widest item.
 671                     doFindWidest = true;
 672                 }
 673
 674                 dirtyHandled++;
 675             }
 676         }
 677
 678         m_widthsDirty = false;
 679     }
 680
 681     if ( doFindWidest )
 682     {
 683         unsigned int i;
 684         unsigned int n = m_widths.GetCount();
 685
 686         int bestWidth = -1;
 687         int bestIndex = -1;
 688
 689         for ( i=0; i<n; i++ )
 690         {
 691             int w = m_widths[i];
 692             if ( w > bestWidth )
 693             {
 694                 bestIndex = (int)i;
 695                 bestWidth = w;
 696             }
 697         }
 698
 699         m_widestWidth = bestWidth;
 700         m_widestItem = bestIndex;
 701
 702         m_findWidest = false;
 703     }
 704 }
 705
 706 wxSize wxVListBoxComboPopup::GetAdjustedSize( int minWidth, int prefHeight, int maxHeight )
 707 {
 708     int height = 250;
 709
 710     if ( m_strings.GetCount() )
 711     {
 712         if ( prefHeight > 0 )
 713             height = prefHeight;
 714
 715         if ( height > maxHeight )
 716             height = maxHeight;
 717
 718         int totalHeight = GetTotalHeight(); // + 3;
 719         if ( height >= totalHeight )
 720         {
 721             height = totalHeight;
 722         }
 723         else
 724         {
 725             // Adjust height to a multiple of the height of the first item
 726             // NB: Calculations that take variable height into account
 727             //     are unnecessary.
 728             int fih = GetLineHeight(0);
 729             int shown = height/fih;
 730             height = shown * fih;
 731         }
 732     }
 733     else
 734         height = 50;
 735
 736     CalcWidths();
 737
 738     // Take scrollbar into account in width calculations
 739     int widestWidth = m_widestWidth + wxSystemSettings::GetMetric(wxSYS_VSCROLL_X);
 740     return wxSize(minWidth > widestWidth ? minWidth : widestWidth,
 741                   height+2);
 742 }
 743
 744 //void wxVListBoxComboPopup::Populate( int n, const wxString choices[] )
 745 void wxVListBoxComboPopup::Populate( const wxArrayString& choices )
 746 {
 747     int i;
 748
 749     int n = choices.GetCount();
 750
 751     for ( i=0; i<n; i++ )
 752     {
 753         const wxString& item = choices.Item(i);
 754         m_strings.Add(item);
 755     }
 756
 757     m_widths.SetCount(n,-1);
 758     m_widthsDirty = true;
 759
 760     if ( IsCreated() )
 761         wxVListBox::SetItemCount(n);
 762
 763     // Sort the initial choices
 764     if ( m_combo->GetWindowStyle() & wxCB_SORT )
 765         m_strings.Sort();
 766
 767     // Find initial selection
 768     wxString strValue = m_combo->GetValue();
 769     if ( strValue.length() )
 770         m_value = m_strings.Index(strValue);
 771 }
 772
 773 // ----------------------------------------------------------------------------
 774 // wxOwnerDrawnComboBox
 775 // ----------------------------------------------------------------------------
 776
 777
 778 BEGIN_EVENT_TABLE(wxOwnerDrawnComboBox, wxComboCtrl)
 779 END_EVENT_TABLE()
 780
 781
 782 IMPLEMENT_DYNAMIC_CLASS2(wxOwnerDrawnComboBox, wxComboCtrl, wxControlWithItems)
 783
 784 void wxOwnerDrawnComboBox::Init()
 785 {
 786 }
 787
 788 bool wxOwnerDrawnComboBox::Create(wxWindow *parent,
 789                                   wxWindowID id,
 790                                   const wxString& value,
 791                                   const wxPoint& pos,
 792                                   const wxSize& size,
 793                                   long style,
 794                                   const wxValidator& validator,
 795                                   const wxString& name)
 796 {
 797     return wxComboCtrl::Create(parent,id,value,pos,size,style,validator,name);
 798 }
 799
 800 wxOwnerDrawnComboBox::wxOwnerDrawnComboBox(wxWindow *parent,
 801                                            wxWindowID id,
 802                                            const wxString& value,
 803                                            const wxPoint& pos,
 804                                            const wxSize& size,
 805                                            const wxArrayString& choices,
 806                                            long style,
 807                                            const wxValidator& validator,
 808                                            const wxString& name)
 809     : wxComboCtrl()
 810 {
 811     Init();
 812
 813     Create(parent,id,value,pos,size,choices,style, validator, name);
 814 }
 815
 816 bool wxOwnerDrawnComboBox::Create(wxWindow *parent,
 817                                   wxWindowID id,
 818                                   const wxString& value,
 819                                   const wxPoint& pos,
 820                                   const wxSize& size,
 821                                   const wxArrayString& choices,
 822                                   long style,
 823                                   const wxValidator& validator,
 824                                   const wxString& name)
 825 {
 826     m_initChs = choices;
 827     //wxCArrayString chs(choices);
 828
 829     //return Create(parent, id, value, pos, size, chs.GetCount(),
 830     //              chs.GetStrings(), style, validator, name);
 831     return Create(parent, id, value, pos, size, 0,
 832                   NULL, style, validator, name);
 833 }
 834
 835 bool wxOwnerDrawnComboBox::Create(wxWindow *parent,
 836                                   wxWindowID id,
 837                                   const wxString& value,
 838                                   const wxPoint& pos,
 839                                   const wxSize& size,
 840                                   int n,
 841                                   const wxString choices[],
 842                                   long style,
 843                                   const wxValidator& validator,
 844                                   const wxString& name)
 845 {
 846
 847     if ( !Create(parent, id, value, pos, size, style,
 848                  validator, name) )
 849     {
 850         return false;
 851     }
 852
 853     int i;
 854     for ( i=0; i<n; i++ )
 855         m_initChs.Add(choices[i]);
 856
 857     return true;
 858 }
 859
 860 wxOwnerDrawnComboBox::~wxOwnerDrawnComboBox()
 861 {
 862     if ( m_popupInterface )
 863         GetVListBoxComboPopup()->ClearClientDatas();
 864 }
 865
 866 void wxOwnerDrawnComboBox::DoSetPopupControl(wxComboPopup* popup)
 867 {
 868     if ( !popup )
 869     {
 870         popup = new wxVListBoxComboPopup();
 871     }
 872
 873     wxComboCtrl::DoSetPopupControl(popup);
 874
 875     wxASSERT(popup);
 876
 877     // Add initial choices to the wxVListBox
 878     if ( !GetVListBoxComboPopup()->GetCount() )
 879     {
 880         GetVListBoxComboPopup()->Populate(m_initChs);
 881         m_initChs.Clear();
 882     }
 883 }
 884
 885 // ----------------------------------------------------------------------------
 886 // wxOwnerDrawnComboBox item manipulation methods
 887 // ----------------------------------------------------------------------------
 888
 889 void wxOwnerDrawnComboBox::Clear()
 890 {
 891     EnsurePopupControl();
 892
 893     GetVListBoxComboPopup()->Clear();
 894
 895     SetValue(wxEmptyString);
 896 }
 897
 898 void wxOwnerDrawnComboBox::Delete(unsigned int n)
 899 {
 900     wxCHECK_RET( IsValid(n), _T("invalid index in wxOwnerDrawnComboBox::Delete") );
 901
 902     if ( GetSelection() == (int) n )
 903         SetValue(wxEmptyString);
 904
 905     GetVListBoxComboPopup()->Delete(n);
 906 }
 907
 908 unsigned int wxOwnerDrawnComboBox::GetCount() const
 909 {
 910     if ( !m_popupInterface )
 911         return m_initChs.GetCount();
 912
 913     return GetVListBoxComboPopup()->GetCount();
 914 }
 915
 916 wxString wxOwnerDrawnComboBox::GetString(unsigned int n) const
 917 {
 918     wxCHECK_MSG( IsValid(n), wxEmptyString, _T("invalid index in wxOwnerDrawnComboBox::GetString") );
 919
 920     if ( !m_popupInterface )
 921         return m_initChs.Item(n);
 922
 923     return GetVListBoxComboPopup()->GetString(n);
 924 }
 925
 926 void wxOwnerDrawnComboBox::SetString(unsigned int n, const wxString& s)
 927 {
 928     EnsurePopupControl();
 929
 930     wxCHECK_RET( IsValid(n), _T("invalid index in wxOwnerDrawnComboBox::SetString") );
 931
 932     GetVListBoxComboPopup()->SetString(n,s);
 933 }
 934
 935 int wxOwnerDrawnComboBox::FindString(const wxString& s, bool bCase) const
 936 {
 937     if ( !m_popupInterface )
 938         return m_initChs.Index(s, bCase);
 939
 940     return GetVListBoxComboPopup()->FindString(s, bCase);
 941 }
 942
 943 void wxOwnerDrawnComboBox::Select(int n)
 944 {
 945     EnsurePopupControl();
 946
 947     wxCHECK_RET( (n == wxNOT_FOUND) || IsValid(n), _T("invalid index in wxOwnerDrawnComboBox::Select") );
 948
 949     GetVListBoxComboPopup()->SetSelection(n);
 950
 951     wxString str;
 952     if ( n >= 0 )
 953         str = GetVListBoxComboPopup()->GetString(n);
 954
 955     // Refresh text portion in control
 956     if ( m_text )
 957         m_text->SetValue( str );
 958     else
 959         m_valueString = str;
 960
 961     Refresh();
 962 }
 963
 964 int wxOwnerDrawnComboBox::GetSelection() const
 965 {
 966     if ( !m_popupInterface )
 967         return m_initChs.Index(m_valueString);
 968
 969     return GetVListBoxComboPopup()->GetSelection();
 970 }
 971
 972 int wxOwnerDrawnComboBox::DoAppend(const wxString& item)
 973 {
 974     EnsurePopupControl();
 975     wxASSERT(m_popupInterface);
 976
 977     return GetVListBoxComboPopup()->Append(item);
 978 }
 979
 980 int wxOwnerDrawnComboBox::DoInsert(const wxString& item, unsigned int pos)
 981 {
 982     EnsurePopupControl();
 983
 984     wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
 985     wxCHECK_MSG(IsValidInsert(pos), -1, wxT("invalid index"));
 986
 987     GetVListBoxComboPopup()->Insert(item,pos);
 988
 989     return pos;
 990 }
 991
 992 void wxOwnerDrawnComboBox::DoSetItemClientData(unsigned int n, void* clientData)
 993 {
 994     EnsurePopupControl();
 995
 996     GetVListBoxComboPopup()->SetItemClientData(n,clientData,m_clientDataItemsType);
 997 }
 998
 999 void* wxOwnerDrawnComboBox::DoGetItemClientData(unsigned int n) const
1000 {
1001     if ( !m_popupInterface )
1002         return NULL;
1003
1004     return GetVListBoxComboPopup()->GetItemClientData(n);
1005 }
1006
1007 void wxOwnerDrawnComboBox::DoSetItemClientObject(unsigned int n, wxClientData* clientData)
1008 {
1009     DoSetItemClientData(n, (void*) clientData);
1010 }
1011
1012 wxClientData* wxOwnerDrawnComboBox::DoGetItemClientObject(unsigned int n) const
1013 {
1014     return (wxClientData*) DoGetItemClientData(n);
1015 }
1016
1017 // ----------------------------------------------------------------------------
1018 // wxOwnerDrawnComboBox item drawing and measuring default implementations
1019 // ----------------------------------------------------------------------------
1020
1021 void wxOwnerDrawnComboBox::OnDrawItem( wxDC& dc,
1022                                        const wxRect& rect,
1023                                        int item,
1024                                        int flags ) const
1025 {
1026     if ( flags & wxODCB_PAINTING_CONTROL )
1027     {
1028         dc.DrawText( GetValue(),
1029                      rect.x + GetTextIndent(),
1030                      (rect.height-dc.GetCharHeight())/2 + rect.y );
1031     }
1032     else
1033     {
1034         dc.DrawText( GetVListBoxComboPopup()->GetString(item), rect.x + 2, rect.y );
1035     }
1036 }
1037
1038 wxCoord wxOwnerDrawnComboBox::OnMeasureItem( size_t WXUNUSED(item) ) const
1039 {
1040     return -1;
1041 }
1042
1043 wxCoord wxOwnerDrawnComboBox::OnMeasureItemWidth( size_t WXUNUSED(item) ) const
1044 {
1045     return -1;
1046 }
1047
1048 void wxOwnerDrawnComboBox::OnDrawBackground(wxDC& dc, const wxRect& rect, int item, int flags) const
1049 {
1050     // we need to render selected and current items differently
1051     if ( GetVListBoxComboPopup()->IsCurrent((size_t)item) ||
1052          (flags & wxODCB_PAINTING_CONTROL) )
1053     {
1054         int focusFlag = wxCONTROL_SELECTED;
1055
1056         if ( (flags & wxODCB_PAINTING_CONTROL) != wxODCB_PAINTING_CONTROL )
1057             focusFlag |= wxCONTROL_ISSUBMENU;
1058
1059         DrawFocusBackground(dc, rect, focusFlag );
1060     }
1061     //else: do nothing for the normal items
1062 }
1063
1064 #endif // wxUSE_ODCOMBOBOX