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         int flags = wxODCB_PAINTING_CONTROL;
 111
 112         if ( m_combo->ShouldDrawFocus() )
 113             flags |= wxODCB_PAINTING_SELECTED;
 114
 115         OnDrawBg(dc, rect, m_value, flags);
 116
 117         if ( m_value >= 0 )
 118         {
 119             OnDrawItem(dc,rect,m_value,flags);
 120             return;
 121         }
 122     }
 123
 124     wxComboPopup::PaintComboControl(dc,rect);
 125 }
 126
 127 void wxVListBoxComboPopup::OnDrawItem(wxDC& dc, const wxRect& rect, size_t n) const
 128 {
 129     // TODO: Maybe this code could be moved to wxVListBox::OnPaint?
 130     dc.SetFont(m_useFont);
 131
 132     int flags = 0;
 133
 134     // Set correct text colour for selected items
 135     if ( wxVListBox::GetSelection() == (int) n )
 136     {
 137         dc.SetTextForeground( wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT) );
 138         flags |= wxODCB_PAINTING_SELECTED;
 139     }
 140     else
 141     {
 142         dc.SetTextForeground( wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT) );
 143     }
 144
 145     OnDrawItem(dc,rect,(int)n,flags);
 146 }
 147
 148 wxCoord wxVListBoxComboPopup::OnMeasureItem(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     wxCoord h = combo->OnMeasureItem(n);
 156     if ( h < 0 )
 157         h = m_itemHeight;
 158     return h;
 159 }
 160
 161 wxCoord wxVListBoxComboPopup::OnMeasureItemWidth(size_t n) 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     return combo->OnMeasureItemWidth(n);
 169 }
 170
 171 void wxVListBoxComboPopup::OnDrawBg( wxDC& dc,
 172                                      const wxRect& rect,
 173                                      int item,
 174                                      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     if ( IsCurrent((size_t)item) && !(flags & wxODCB_PAINTING_CONTROL) )
 182         flags |= wxODCB_PAINTING_SELECTED;
 183
 184     combo->OnDrawBackground(dc,rect,item,flags);
 185 }
 186
 187 void wxVListBoxComboPopup::OnDrawBackground(wxDC& dc, const wxRect& rect, size_t n) const
 188 {
 189     OnDrawBg(dc,rect,(int)n,0);
 190 }
 191
 192 // This is called from wxVListBoxComboPopup::OnDrawItem, with text colour and font prepared
 193 void wxVListBoxComboPopup::OnDrawItem( wxDC& dc, const wxRect& rect, int item, int flags ) const
 194 {
 195     wxOwnerDrawnComboBox* combo = (wxOwnerDrawnComboBox*) m_combo;
 196
 197     wxASSERT_MSG( combo->IsKindOf(CLASSINFO(wxOwnerDrawnComboBox)),
 198                   wxT("you must subclass wxVListBoxComboPopup for drawing and measuring methods") );
 199
 200     combo->OnDrawItem(dc,rect,item,flags);
 201 }
 202
 203 void wxVListBoxComboPopup::DismissWithEvent()
 204 {
 205     StopPartialCompletion();
 206
 207     int selection = wxVListBox::GetSelection();
 208
 209     Dismiss();
 210
 211     wxString valStr;
 212     if ( selection != wxNOT_FOUND )
 213         valStr = m_strings[selection];
 214     else
 215         valStr = wxEmptyString;
 216
 217     m_value = selection;
 218
 219     if ( valStr != m_combo->GetValue() )
 220         m_combo->SetValueWithEvent(valStr);
 221
 222     SendComboBoxEvent(selection);
 223 }
 224
 225 void wxVListBoxComboPopup::SendComboBoxEvent( int selection )
 226 {
 227     wxCommandEvent evt(wxEVT_COMMAND_COMBOBOX_SELECTED,m_combo->GetId());
 228
 229     evt.SetEventObject(m_combo);
 230
 231     evt.SetInt(selection);
 232
 233     // Set client data, if any
 234     if ( selection >= 0 && (int)m_clientDatas.GetCount() > selection )
 235     {
 236         void* clientData = m_clientDatas[selection];
 237         if ( m_clientDataItemsType == wxClientData_Object )
 238             evt.SetClientObject((wxClientData*)clientData);
 239         else
 240             evt.SetClientData(clientData);
 241     }
 242
 243     m_combo->GetEventHandler()->AddPendingEvent(evt);
 244 }
 245
 246 // returns true if key was consumed
 247 bool wxVListBoxComboPopup::HandleKey( int keycode, bool saturate, wxChar unicode )
 248 {
 249     int value = m_value;
 250     int itemCount = GetCount();
 251     int comboStyle = m_combo->GetWindowStyle();
 252
 253     // this is the character equivalent of the code
 254     wxChar keychar=0;
 255     if ((keycode >= WXK_SPACE) && (keycode <=255) && (keycode != WXK_DELETE) && wxIsprint(keycode))
 256     {
 257         keychar = (wxChar)keycode;
 258     }
 259     else if (unicode>0)
 260     {
 261         keychar = unicode;
 262     }
 263
 264     if ( keycode == WXK_DOWN || keycode == WXK_RIGHT )
 265     {
 266         value++;
 267         StopPartialCompletion();
 268     }
 269     else if ( keycode == WXK_UP || keycode == WXK_LEFT )
 270     {
 271         value--;
 272         StopPartialCompletion();
 273     }
 274     else if ( keycode == WXK_PAGEDOWN )
 275     {
 276         value+=10;
 277         StopPartialCompletion();
 278     }
 279     else if ( keycode == WXK_PAGEUP )
 280     {
 281         value-=10;
 282         StopPartialCompletion();
 283     }
 284     else if ( comboStyle & wxCB_READONLY )
 285     {
 286         // Try partial completion
 287
 288         // find the new partial completion string
 289 #if wxUSE_TIMER
 290         if (m_partialCompletionTimer.IsRunning())
 291             m_partialCompletionString+=wxString(keychar);
 292         else
 293 #endif // wxUSE_TIMER
 294             m_partialCompletionString=wxString(keychar);
 295
 296         // now search through the values to see if this is found
 297         int found = -1;
 298         unsigned int length=m_partialCompletionString.length();
 299         int i;
 300         for (i=0; i<itemCount; i++)
 301         {
 302             wxString item=GetString(i);
 303             if (( item.length() >= length) && (!  m_partialCompletionString.CmpNoCase(item.Left(length))))
 304             {
 305                 found=i;
 306                 break;
 307             }
 308         }
 309
 310         if (found<0)
 311         {
 312             StopPartialCompletion();
 313             ::wxBell();
 314             return true; // to stop the first value being set
 315         }
 316         else
 317         {
 318             value=i;
 319 #if wxUSE_TIMER
 320             m_partialCompletionTimer.Start(wxODCB_PARTIAL_COMPLETION_TIME, true);
 321 #endif // wxUSE_TIMER
 322         }
 323     }
 324     else
 325         return false;
 326
 327     if ( saturate )
 328     {
 329         if ( value >= itemCount )
 330             value = itemCount - 1;
 331         else if ( value < 0 )
 332             value = 0;
 333     }
 334     else
 335     {
 336         if ( value >= itemCount )
 337             value -= itemCount;
 338         else if ( value < 0 )
 339             value += itemCount;
 340     }
 341
 342     if ( value == m_value )
 343         // Even if value was same, don't skip the event
 344         // (good for consistency)
 345         return true;
 346
 347     m_value = value;
 348
 349     if ( value >= 0 )
 350         m_combo->SetValue(m_strings[value]);
 351
 352     SendComboBoxEvent(m_value);
 353
 354     return true;
 355 }
 356
 357 // stop partial completion
 358 void wxVListBoxComboPopup::StopPartialCompletion()
 359 {
 360     m_partialCompletionString = wxEmptyString;
 361 #if wxUSE_TIMER
 362     m_partialCompletionTimer.Stop();
 363 #endif // wxUSE_TIMER
 364 }
 365
 366 void wxVListBoxComboPopup::OnComboDoubleClick()
 367 {
 368     // Cycle on dclick (disable saturation to allow true cycling).
 369     if ( !::wxGetKeyState(WXK_SHIFT) )
 370         HandleKey(WXK_DOWN,false);
 371     else
 372         HandleKey(WXK_UP,false);
 373 }
 374
 375 void wxVListBoxComboPopup::OnComboKeyEvent( wxKeyEvent& event )
 376 {
 377     // Saturated key movement on
 378     if ( !HandleKey(event.GetKeyCode(),true,
 379 #if wxUSE_UNICODE
 380         event.GetUnicodeKey()
 381 #else
 382         0
 383 #endif
 384         ) )
 385         event.Skip();
 386 }
 387
 388 void wxVListBoxComboPopup::OnPopup()
 389 {
 390     // *must* set value after size is set (this is because of a vlbox bug)
 391     wxVListBox::SetSelection(m_value);
 392 }
 393
 394 void wxVListBoxComboPopup::OnMouseMove(wxMouseEvent& event)
 395 {
 396     event.Skip();
 397
 398     // Move selection to cursor if it is inside the popup
 399
 400     int y = event.GetPosition().y;
 401     int fromBottom = GetClientSize().y - y;
 402
 403     // Since in any case we need to find out if the last item is only
 404     // partially visible, we might just as well replicate the HitTest
 405     // loop here.
 406     const size_t lineMax = GetVisibleEnd();
 407     for ( size_t line = GetVisibleBegin(); line < lineMax; line++ )
 408     {
 409         y -= OnGetRowHeight(line);
 410         if ( y < 0 )
 411         {
 412             // Only change selection if item is fully visible
 413             if ( (y + fromBottom) >= 0 )
 414             {
 415                 wxVListBox::SetSelection((int)line);
 416                 return;
 417             }
 418         }
 419     }
 420 }
 421
 422 void wxVListBoxComboPopup::OnLeftClick(wxMouseEvent& WXUNUSED(event))
 423 {
 424     DismissWithEvent();
 425 }
 426
 427 void wxVListBoxComboPopup::OnKey(wxKeyEvent& event)
 428 {
 429     // Hide popup if certain key or key combination was pressed
 430     if ( m_combo->IsKeyPopupToggle(event) )
 431     {
 432         StopPartialCompletion();
 433         Dismiss();
 434     }
 435     else if ( event.AltDown() )
 436     {
 437         // On both wxGTK and wxMSW, pressing Alt down seems to
 438         // completely freeze things in popup (ie. arrow keys and
 439         // enter won't work).
 440         return;
 441     }
 442     // Select item if ENTER is pressed
 443     else if ( event.GetKeyCode() == WXK_RETURN || event.GetKeyCode() == WXK_NUMPAD_ENTER )
 444     {
 445         DismissWithEvent();
 446     }
 447     else
 448     {
 449         int comboStyle = m_combo->GetWindowStyle();
 450         int keycode = event.GetKeyCode();
 451         // Process partial completion key codes here, but not the arrow keys as the base class will do that for us
 452         if ((comboStyle & wxCB_READONLY) &&
 453             (keycode >= WXK_SPACE) && (keycode <=255) && (keycode != WXK_DELETE) && wxIsprint(keycode))
 454         {
 455             OnComboKeyEvent(event);
 456             SetSelection(m_value); // ensure the highlight bar moves
 457         }
 458         else
 459             event.Skip();
 460     }
 461 }
 462
 463 void wxVListBoxComboPopup::Insert( const wxString& item, int pos )
 464 {
 465     // Need to change selection?
 466     wxString strValue;
 467     if ( !(m_combo->GetWindowStyle() & wxCB_READONLY) &&
 468          m_combo->GetValue() == item )
 469     {
 470         m_value = pos;
 471     }
 472
 473     m_strings.Insert(item,pos);
 474     m_clientDatas.Insert(NULL, pos);
 475
 476     m_widths.Insert(-1,pos);
 477     m_widthsDirty = true;
 478
 479     if ( IsCreated() )
 480         wxVListBox::SetItemCount( wxVListBox::GetItemCount()+1 );
 481 }
 482
 483 int wxVListBoxComboPopup::Append(const wxString& item)
 484 {
 485     int pos = (int)m_strings.GetCount();
 486
 487     if ( m_combo->GetWindowStyle() & wxCB_SORT )
 488     {
 489         // Find position
 490         // TODO: Could be optimized with binary search
 491         wxArrayString strings = m_strings;
 492         unsigned int i;
 493
 494         for ( i=0; i<strings.GetCount(); i++ )
 495         {
 496             if ( item.Cmp(strings.Item(i)) < 0 )
 497             {
 498                 pos = (int)i;
 499                 break;
 500             }
 501         }
 502     }
 503
 504     Insert(item,pos);
 505
 506     return pos;
 507 }
 508
 509 void wxVListBoxComboPopup::Clear()
 510 {
 511     wxASSERT(m_combo);
 512
 513     m_strings.Empty();
 514     m_widths.Empty();
 515
 516     m_widestWidth = 0;
 517     m_widestItem = -1;
 518
 519     ClearClientDatas();
 520
 521     m_value = wxNOT_FOUND;
 522
 523     if ( IsCreated() )
 524         wxVListBox::SetItemCount(0);
 525 }
 526
 527 void wxVListBoxComboPopup::ClearClientDatas()
 528 {
 529     if ( m_clientDataItemsType == wxClientData_Object )
 530     {
 531         size_t i;
 532         for ( i=0; i<m_clientDatas.GetCount(); i++ )
 533             delete (wxClientData*) m_clientDatas[i];
 534     }
 535
 536     m_clientDatas.Empty();
 537 }
 538
 539 void wxVListBoxComboPopup::SetItemClientData( unsigned int n,
 540                                               void* clientData,
 541                                               wxClientDataType clientDataItemsType )
 542 {
 543     // It should be sufficient to update this variable only here
 544     m_clientDataItemsType = clientDataItemsType;
 545
 546     m_clientDatas[n] = clientData;
 547
 548     ItemWidthChanged(n);
 549 }
 550
 551 void* wxVListBoxComboPopup::GetItemClientData(unsigned int n) const
 552 {
 553     if ( m_clientDatas.GetCount() > n )
 554         return m_clientDatas[n];
 555
 556     return NULL;
 557 }
 558
 559 void wxVListBoxComboPopup::Delete( unsigned int item )
 560 {
 561     // Remove client data, if set
 562     if ( m_clientDatas.GetCount() )
 563     {
 564         if ( m_clientDataItemsType == wxClientData_Object )
 565             delete (wxClientData*) m_clientDatas[item];
 566
 567         m_clientDatas.RemoveAt(item);
 568     }
 569
 570     m_strings.RemoveAt(item);
 571     m_widths.RemoveAt(item);
 572
 573     if ( (int)item == m_widestItem )
 574         m_findWidest = true;
 575
 576     int sel = GetSelection();
 577
 578     if ( IsCreated() )
 579         wxVListBox::SetItemCount( wxVListBox::GetItemCount()-1 );
 580
 581     // Fix selection
 582     if ( (int)item < sel )
 583         SetSelection(sel-1);
 584     else if ( (int)item == sel )
 585         SetSelection(wxNOT_FOUND);
 586 }
 587
 588 int wxVListBoxComboPopup::FindString(const wxString& s, bool bCase) const
 589 {
 590     return m_strings.Index(s, bCase);
 591 }
 592
 593 unsigned int wxVListBoxComboPopup::GetCount() const
 594 {
 595     return m_strings.GetCount();
 596 }
 597
 598 wxString wxVListBoxComboPopup::GetString( int item ) const
 599 {
 600     return m_strings[item];
 601 }
 602
 603 void wxVListBoxComboPopup::SetString( int item, const wxString& str )
 604 {
 605     m_strings[item] = str;
 606     ItemWidthChanged(item);
 607 }
 608
 609 wxString wxVListBoxComboPopup::GetStringValue() const
 610 {
 611     if ( m_value >= 0 )
 612         return m_strings[m_value];
 613     return wxEmptyString;
 614 }
 615
 616 void wxVListBoxComboPopup::SetSelection( int item )
 617 {
 618     wxCHECK_RET( item == wxNOT_FOUND || ((unsigned int)item < GetCount()),
 619                  wxT("invalid index in wxVListBoxComboPopup::SetSelection") );
 620
 621     m_value = item;
 622
 623     if ( IsCreated() )
 624         wxVListBox::SetSelection(item);
 625 }
 626
 627 int wxVListBoxComboPopup::GetSelection() const
 628 {
 629     return m_value;
 630 }
 631
 632 void wxVListBoxComboPopup::SetStringValue( const wxString& value )
 633 {
 634     int index = m_strings.Index(value);
 635
 636     m_value = index;
 637
 638     if ( index >= -1 && index < (int)wxVListBox::GetItemCount() )
 639         wxVListBox::SetSelection(index);
 640 }
 641
 642 void wxVListBoxComboPopup::CalcWidths()
 643 {
 644     bool doFindWidest = m_findWidest;
 645
 646     // Measure items with dirty width.
 647     if ( m_widthsDirty )
 648     {
 649         unsigned int i;
 650         unsigned int n = m_widths.GetCount();
 651         int dirtyHandled = 0;
 652         wxArrayInt& widths = m_widths;
 653
 654         // I think using wxDC::GetTextExtent is faster than
 655         // wxWindow::GetTextExtent (assuming same dc is used
 656         // for all calls, as we do here).
 657         wxClientDC dc(m_combo);
 658         dc.SetFont(m_useFont);
 659
 660         for ( i=0; i<n; i++ )
 661         {
 662             if ( widths[i] < 0 )
 663             {
 664                 wxCoord x = OnMeasureItemWidth(i);
 665
 666                 if ( x < 0 )
 667                 {
 668                     const wxString& text = m_strings[i];
 669
 670                     // To make sure performance won't suck in extreme scenarios,
 671                     // we'll estimate length after some arbitrary number of items
 672                     // have been checked precily.
 673                     if ( dirtyHandled < 1024 )
 674                     {
 675                         wxCoord y;
 676                         dc.GetTextExtent(text, &x, &y, 0, 0);
 677                         x += 4;
 678                     }
 679                     else
 680                     {
 681                         x = text.length() * (dc.GetCharWidth()+1);
 682                     }
 683                 }
 684
 685                 widths[i] = x;
 686
 687                 if ( x >= m_widestWidth )
 688                 {
 689                     m_widestWidth = x;
 690                     m_widestItem = (int)i;
 691                 }
 692                 else if ( (int)i == m_widestItem )
 693                 {
 694                     // Width of previously widest item has been decreased, so
 695                     // we'll have to check all to find current widest item.
 696                     doFindWidest = true;
 697                 }
 698
 699                 dirtyHandled++;
 700             }
 701         }
 702
 703         m_widthsDirty = false;
 704     }
 705
 706     if ( doFindWidest )
 707     {
 708         unsigned int i;
 709         unsigned int n = m_widths.GetCount();
 710
 711         int bestWidth = -1;
 712         int bestIndex = -1;
 713
 714         for ( i=0; i<n; i++ )
 715         {
 716             int w = m_widths[i];
 717             if ( w > bestWidth )
 718             {
 719                 bestIndex = (int)i;
 720                 bestWidth = w;
 721             }
 722         }
 723
 724         m_widestWidth = bestWidth;
 725         m_widestItem = bestIndex;
 726
 727         m_findWidest = false;
 728     }
 729 }
 730
 731 wxSize wxVListBoxComboPopup::GetAdjustedSize( int minWidth, int prefHeight, int maxHeight )
 732 {
 733     int height = 250;
 734
 735     maxHeight -= 2;  // Must take borders into account
 736
 737     if ( m_strings.GetCount() )
 738     {
 739         if ( prefHeight > 0 )
 740             height = prefHeight;
 741
 742         if ( height > maxHeight )
 743             height = maxHeight;
 744
 745         int totalHeight = GetTotalHeight(); // + 3;
 746         if ( height >= totalHeight )
 747         {
 748             height = totalHeight;
 749         }
 750         else
 751         {
 752             // Adjust height to a multiple of the height of the first item
 753             // NB: Calculations that take variable height into account
 754             //     are unnecessary.
 755             int fih = GetLineHeight(0);
 756             height -= height % fih;
 757         }
 758     }
 759     else
 760         height = 50;
 761
 762     CalcWidths();
 763
 764     // Take scrollbar into account in width calculations
 765     int widestWidth = m_widestWidth + wxSystemSettings::GetMetric(wxSYS_VSCROLL_X);
 766     return wxSize(minWidth > widestWidth ? minWidth : widestWidth,
 767                   height+2);
 768 }
 769
 770 //void wxVListBoxComboPopup::Populate( int n, const wxString choices[] )
 771 void wxVListBoxComboPopup::Populate( const wxArrayString& choices )
 772 {
 773     int i;
 774
 775     int n = choices.GetCount();
 776
 777     for ( i=0; i<n; i++ )
 778     {
 779         const wxString& item = choices.Item(i);
 780         m_strings.Add(item);
 781     }
 782
 783     m_widths.SetCount(n,-1);
 784     m_widthsDirty = true;
 785
 786     if ( IsCreated() )
 787         wxVListBox::SetItemCount(n);
 788
 789     // Sort the initial choices
 790     if ( m_combo->GetWindowStyle() & wxCB_SORT )
 791         m_strings.Sort();
 792
 793     // Find initial selection
 794     wxString strValue = m_combo->GetValue();
 795     if ( strValue.length() )
 796         m_value = m_strings.Index(strValue);
 797 }
 798
 799 // ----------------------------------------------------------------------------
 800 // wxOwnerDrawnComboBox
 801 // ----------------------------------------------------------------------------
 802
 803
 804 BEGIN_EVENT_TABLE(wxOwnerDrawnComboBox, wxComboCtrl)
 805 END_EVENT_TABLE()
 806
 807
 808 #if wxUSE_EXTENDED_RTTI
 809 IMPLEMENT_DYNAMIC_CLASS2_XTI(wxOwnerDrawnComboBox, wxComboCtrl, wxControlWithItems, "wx/odcombo.h")
 810
 811 wxBEGIN_PROPERTIES_TABLE(wxOwnerDrawnComboBox)
 812 wxEND_PROPERTIES_TABLE()
 813
 814 wxBEGIN_HANDLERS_TABLE(wxOwnerDrawnComboBox)
 815 wxEND_HANDLERS_TABLE()
 816
 817 wxCONSTRUCTOR_5( wxOwnerDrawnComboBox , wxWindow* , Parent , wxWindowID , Id , wxString , Value , wxPoint , Position , wxSize , Size )
 818 #else
 819 IMPLEMENT_DYNAMIC_CLASS2(wxOwnerDrawnComboBox, wxComboCtrl, wxControlWithItems)
 820 #endif
 821
 822 void wxOwnerDrawnComboBox::Init()
 823 {
 824 }
 825
 826 bool wxOwnerDrawnComboBox::Create(wxWindow *parent,
 827                                   wxWindowID id,
 828                                   const wxString& value,
 829                                   const wxPoint& pos,
 830                                   const wxSize& size,
 831                                   long style,
 832                                   const wxValidator& validator,
 833                                   const wxString& name)
 834 {
 835     return wxComboCtrl::Create(parent,id,value,pos,size,style,validator,name);
 836 }
 837
 838 wxOwnerDrawnComboBox::wxOwnerDrawnComboBox(wxWindow *parent,
 839                                            wxWindowID id,
 840                                            const wxString& value,
 841                                            const wxPoint& pos,
 842                                            const wxSize& size,
 843                                            const wxArrayString& choices,
 844                                            long style,
 845                                            const wxValidator& validator,
 846                                            const wxString& name)
 847     : wxComboCtrl()
 848 {
 849     Init();
 850
 851     Create(parent,id,value,pos,size,choices,style, validator, name);
 852 }
 853
 854 bool wxOwnerDrawnComboBox::Create(wxWindow *parent,
 855                                   wxWindowID id,
 856                                   const wxString& value,
 857                                   const wxPoint& pos,
 858                                   const wxSize& size,
 859                                   const wxArrayString& choices,
 860                                   long style,
 861                                   const wxValidator& validator,
 862                                   const wxString& name)
 863 {
 864     m_initChs = choices;
 865     //wxCArrayString chs(choices);
 866
 867     //return Create(parent, id, value, pos, size, chs.GetCount(),
 868     //              chs.GetStrings(), style, validator, name);
 869     return Create(parent, id, value, pos, size, 0,
 870                   NULL, style, validator, name);
 871 }
 872
 873 bool wxOwnerDrawnComboBox::Create(wxWindow *parent,
 874                                   wxWindowID id,
 875                                   const wxString& value,
 876                                   const wxPoint& pos,
 877                                   const wxSize& size,
 878                                   int n,
 879                                   const wxString choices[],
 880                                   long style,
 881                                   const wxValidator& validator,
 882                                   const wxString& name)
 883 {
 884
 885     if ( !Create(parent, id, value, pos, size, style,
 886                  validator, name) )
 887     {
 888         return false;
 889     }
 890
 891     int i;
 892     for ( i=0; i<n; i++ )
 893         m_initChs.Add(choices[i]);
 894
 895     return true;
 896 }
 897
 898 wxOwnerDrawnComboBox::~wxOwnerDrawnComboBox()
 899 {
 900     if ( m_popupInterface )
 901         GetVListBoxComboPopup()->ClearClientDatas();
 902 }
 903
 904 void wxOwnerDrawnComboBox::DoSetPopupControl(wxComboPopup* popup)
 905 {
 906     if ( !popup )
 907     {
 908         popup = new wxVListBoxComboPopup();
 909     }
 910
 911     wxComboCtrl::DoSetPopupControl(popup);
 912
 913     wxASSERT(popup);
 914
 915     // Add initial choices to the wxVListBox
 916     if ( !GetVListBoxComboPopup()->GetCount() )
 917     {
 918         GetVListBoxComboPopup()->Populate(m_initChs);
 919         m_initChs.Clear();
 920     }
 921 }
 922
 923 // ----------------------------------------------------------------------------
 924 // wxOwnerDrawnComboBox item manipulation methods
 925 // ----------------------------------------------------------------------------
 926
 927 void wxOwnerDrawnComboBox::DoClear()
 928 {
 929     EnsurePopupControl();
 930
 931     GetVListBoxComboPopup()->Clear();
 932
 933     SetValue(wxEmptyString);
 934 }
 935
 936 void wxOwnerDrawnComboBox::DoDeleteOneItem(unsigned int n)
 937 {
 938     wxCHECK_RET( IsValid(n), _T("invalid index in wxOwnerDrawnComboBox::Delete") );
 939
 940     if ( GetSelection() == (int) n )
 941         SetValue(wxEmptyString);
 942
 943     GetVListBoxComboPopup()->Delete(n);
 944 }
 945
 946 unsigned int wxOwnerDrawnComboBox::GetCount() const
 947 {
 948     if ( !m_popupInterface )
 949         return m_initChs.GetCount();
 950
 951     return GetVListBoxComboPopup()->GetCount();
 952 }
 953
 954 wxString wxOwnerDrawnComboBox::GetString(unsigned int n) const
 955 {
 956     wxCHECK_MSG( IsValid(n), wxEmptyString, _T("invalid index in wxOwnerDrawnComboBox::GetString") );
 957
 958     if ( !m_popupInterface )
 959         return m_initChs.Item(n);
 960
 961     return GetVListBoxComboPopup()->GetString(n);
 962 }
 963
 964 void wxOwnerDrawnComboBox::SetString(unsigned int n, const wxString& s)
 965 {
 966     EnsurePopupControl();
 967
 968     wxCHECK_RET( IsValid(n), _T("invalid index in wxOwnerDrawnComboBox::SetString") );
 969
 970     GetVListBoxComboPopup()->SetString(n,s);
 971 }
 972
 973 int wxOwnerDrawnComboBox::FindString(const wxString& s, bool bCase) const
 974 {
 975     if ( !m_popupInterface )
 976         return m_initChs.Index(s, bCase);
 977
 978     return GetVListBoxComboPopup()->FindString(s, bCase);
 979 }
 980
 981 void wxOwnerDrawnComboBox::Select(int n)
 982 {
 983     EnsurePopupControl();
 984
 985     wxCHECK_RET( (n == wxNOT_FOUND) || IsValid(n), _T("invalid index in wxOwnerDrawnComboBox::Select") );
 986
 987     GetVListBoxComboPopup()->SetSelection(n);
 988
 989     wxString str;
 990     if ( n >= 0 )
 991         str = GetVListBoxComboPopup()->GetString(n);
 992
 993     // Refresh text portion in control
 994     if ( m_text )
 995         m_text->SetValue( str );
 996     else
 997         m_valueString = str;
 998
 999     Refresh();
1000 }
1001
1002 int wxOwnerDrawnComboBox::GetSelection() const
1003 {
1004     if ( !m_popupInterface )
1005         return m_initChs.Index(m_valueString);
1006
1007     return GetVListBoxComboPopup()->GetSelection();
1008 }
1009
1010 int wxOwnerDrawnComboBox::DoInsertItems(const wxArrayStringsAdapter& items,
1011                                         unsigned int pos,
1012                                         void **clientData,
1013                                         wxClientDataType type)
1014 {
1015     EnsurePopupControl();
1016
1017     const unsigned int count = items.GetCount();
1018     for( unsigned int i = 0; i < count; ++i, ++pos )
1019     {
1020         GetVListBoxComboPopup()->Insert(items[i], pos);
1021         AssignNewItemClientData(pos, clientData, i, type);
1022     }
1023
1024     return pos - 1;
1025 }
1026
1027 void wxOwnerDrawnComboBox::DoSetItemClientData(unsigned int n, void* clientData)
1028 {
1029     EnsurePopupControl();
1030
1031     GetVListBoxComboPopup()->SetItemClientData(n,clientData,m_clientDataItemsType);
1032 }
1033
1034 void* wxOwnerDrawnComboBox::DoGetItemClientData(unsigned int n) const
1035 {
1036     if ( !m_popupInterface )
1037         return NULL;
1038
1039     return GetVListBoxComboPopup()->GetItemClientData(n);
1040 }
1041
1042 // ----------------------------------------------------------------------------
1043 // wxOwnerDrawnComboBox item drawing and measuring default implementations
1044 // ----------------------------------------------------------------------------
1045
1046 void wxOwnerDrawnComboBox::OnDrawItem( wxDC& dc,
1047                                        const wxRect& rect,
1048                                        int item,
1049                                        int flags ) const
1050 {
1051     if ( flags & wxODCB_PAINTING_CONTROL )
1052     {
1053         dc.DrawText( GetValue(),
1054                      rect.x + GetTextIndent(),
1055                      (rect.height-dc.GetCharHeight())/2 + rect.y );
1056     }
1057     else
1058     {
1059         dc.DrawText( GetVListBoxComboPopup()->GetString(item), rect.x + 2, rect.y );
1060     }
1061 }
1062
1063 wxCoord wxOwnerDrawnComboBox::OnMeasureItem( size_t WXUNUSED(item) ) const
1064 {
1065     return -1;
1066 }
1067
1068 wxCoord wxOwnerDrawnComboBox::OnMeasureItemWidth( size_t WXUNUSED(item) ) const
1069 {
1070     return -1;
1071 }
1072
1073 void wxOwnerDrawnComboBox::OnDrawBackground(wxDC& dc,
1074                                             const wxRect& rect,
1075                                             int WXUNUSED(item),
1076                                             int flags) const
1077 {
1078     // We need only to explicitly draw background for items
1079     // that should have selected background. Also, call PrepareBackground
1080     // always when painting the control so that clipping is done properly.
1081
1082     if ( (flags & wxODCB_PAINTING_SELECTED) ||
1083          ((flags & wxODCB_PAINTING_CONTROL) && HasFlag(wxCB_READONLY)) )
1084     {
1085         int bgFlags = wxCONTROL_SELECTED;
1086
1087         if ( !(flags & wxODCB_PAINTING_CONTROL) )
1088             bgFlags |= wxCONTROL_ISSUBMENU;
1089
1090         PrepareBackground(dc, rect, bgFlags);
1091     }
1092 }
1093
1094 #endif // wxUSE_ODCOMBOBOX