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_widths.Insert(-1,pos);
 475     m_widthsDirty = true;
 476
 477     if ( IsCreated() )
 478         wxVListBox::SetItemCount( wxVListBox::GetItemCount()+1 );
 479 }
 480
 481 int wxVListBoxComboPopup::Append(const wxString& item)
 482 {
 483     int pos = (int)m_strings.GetCount();
 484
 485     if ( m_combo->GetWindowStyle() & wxCB_SORT )
 486     {
 487         // Find position
 488         // TODO: Could be optimized with binary search
 489         wxArrayString strings = m_strings;
 490         unsigned int i;
 491
 492         for ( i=0; i<strings.GetCount(); i++ )
 493         {
 494             if ( item.Cmp(strings.Item(i)) < 0 )
 495             {
 496                 pos = (int)i;
 497                 break;
 498             }
 499         }
 500     }
 501
 502     Insert(item,pos);
 503
 504     return pos;
 505 }
 506
 507 void wxVListBoxComboPopup::Clear()
 508 {
 509     wxASSERT(m_combo);
 510
 511     m_strings.Empty();
 512     m_widths.Empty();
 513
 514     m_widestWidth = 0;
 515     m_widestItem = -1;
 516
 517     ClearClientDatas();
 518
 519     m_value = wxNOT_FOUND;
 520
 521     if ( IsCreated() )
 522         wxVListBox::SetItemCount(0);
 523 }
 524
 525 void wxVListBoxComboPopup::ClearClientDatas()
 526 {
 527     if ( m_clientDataItemsType == wxClientData_Object )
 528     {
 529         size_t i;
 530         for ( i=0; i<m_clientDatas.GetCount(); i++ )
 531             delete (wxClientData*) m_clientDatas[i];
 532     }
 533
 534     m_clientDatas.Empty();
 535 }
 536
 537 void wxVListBoxComboPopup::SetItemClientData( unsigned int n,
 538                                               void* clientData,
 539                                               wxClientDataType clientDataItemsType )
 540 {
 541     // It should be sufficient to update this variable only here
 542     m_clientDataItemsType = clientDataItemsType;
 543
 544     m_clientDatas.SetCount(n+1,NULL);
 545     m_clientDatas[n] = clientData;
 546
 547     ItemWidthChanged(n);
 548 }
 549
 550 void* wxVListBoxComboPopup::GetItemClientData(unsigned int n) const
 551 {
 552     if ( m_clientDatas.GetCount() > n )
 553         return m_clientDatas[n];
 554
 555     return NULL;
 556 }
 557
 558 void wxVListBoxComboPopup::Delete( unsigned int item )
 559 {
 560     // Remove client data, if set
 561     if ( m_clientDatas.GetCount() )
 562     {
 563         if ( m_clientDataItemsType == wxClientData_Object )
 564             delete (wxClientData*) m_clientDatas[item];
 565
 566         m_clientDatas.RemoveAt(item);
 567     }
 568
 569     m_strings.RemoveAt(item);
 570     m_widths.RemoveAt(item);
 571
 572     if ( (int)item == m_widestItem )
 573         m_findWidest = true;
 574
 575     int sel = GetSelection();
 576
 577     if ( IsCreated() )
 578         wxVListBox::SetItemCount( wxVListBox::GetItemCount()-1 );
 579
 580     // Fix selection
 581     if ( (int)item < sel )
 582         SetSelection(sel-1);
 583     else if ( (int)item == sel )
 584         SetSelection(wxNOT_FOUND);
 585 }
 586
 587 int wxVListBoxComboPopup::FindString(const wxString& s, bool bCase) const
 588 {
 589     return m_strings.Index(s, bCase);
 590 }
 591
 592 unsigned int wxVListBoxComboPopup::GetCount() const
 593 {
 594     return m_strings.GetCount();
 595 }
 596
 597 wxString wxVListBoxComboPopup::GetString( int item ) const
 598 {
 599     return m_strings[item];
 600 }
 601
 602 void wxVListBoxComboPopup::SetString( int item, const wxString& str )
 603 {
 604     m_strings[item] = str;
 605     ItemWidthChanged(item);
 606 }
 607
 608 wxString wxVListBoxComboPopup::GetStringValue() const
 609 {
 610     if ( m_value >= 0 )
 611         return m_strings[m_value];
 612     return wxEmptyString;
 613 }
 614
 615 void wxVListBoxComboPopup::SetSelection( int item )
 616 {
 617     wxCHECK_RET( item == wxNOT_FOUND || ((unsigned int)item < GetCount()),
 618                  wxT("invalid index in wxVListBoxComboPopup::SetSelection") );
 619
 620     m_value = item;
 621
 622     if ( IsCreated() )
 623         wxVListBox::SetSelection(item);
 624 }
 625
 626 int wxVListBoxComboPopup::GetSelection() const
 627 {
 628     return m_value;
 629 }
 630
 631 void wxVListBoxComboPopup::SetStringValue( const wxString& value )
 632 {
 633     int index = m_strings.Index(value);
 634
 635     m_value = index;
 636
 637     if ( index >= -1 && index < (int)wxVListBox::GetItemCount() )
 638         wxVListBox::SetSelection(index);
 639 }
 640
 641 void wxVListBoxComboPopup::CalcWidths()
 642 {
 643     bool doFindWidest = m_findWidest;
 644
 645     // Measure items with dirty width.
 646     if ( m_widthsDirty )
 647     {
 648         unsigned int i;
 649         unsigned int n = m_widths.GetCount();
 650         int dirtyHandled = 0;
 651         wxArrayInt& widths = m_widths;
 652
 653         // I think using wxDC::GetTextExtent is faster than
 654         // wxWindow::GetTextExtent (assuming same dc is used
 655         // for all calls, as we do here).
 656         wxClientDC dc(m_combo);
 657         dc.SetFont(m_useFont);
 658
 659         for ( i=0; i<n; i++ )
 660         {
 661             if ( widths[i] < 0 )
 662             {
 663                 wxCoord x = OnMeasureItemWidth(i);
 664
 665                 if ( x < 0 )
 666                 {
 667                     const wxString& text = m_strings[i];
 668
 669                     // To make sure performance won't suck in extreme scenarios,
 670                     // we'll estimate length after some arbitrary number of items
 671                     // have been checked precily.
 672                     if ( dirtyHandled < 1024 )
 673                     {
 674                         wxCoord y;
 675                         dc.GetTextExtent(text, &x, &y, 0, 0);
 676                         x += 4;
 677                     }
 678                     else
 679                     {
 680                         x = text.length() * (dc.GetCharWidth()+1);
 681                     }
 682                 }
 683
 684                 widths[i] = x;
 685
 686                 if ( x >= m_widestWidth )
 687                 {
 688                     m_widestWidth = x;
 689                     m_widestItem = (int)i;
 690                 }
 691                 else if ( (int)i == m_widestItem )
 692                 {
 693                     // Width of previously widest item has been decreased, so
 694                     // we'll have to check all to find current widest item.
 695                     doFindWidest = true;
 696                 }
 697
 698                 dirtyHandled++;
 699             }
 700         }
 701
 702         m_widthsDirty = false;
 703     }
 704
 705     if ( doFindWidest )
 706     {
 707         unsigned int i;
 708         unsigned int n = m_widths.GetCount();
 709
 710         int bestWidth = -1;
 711         int bestIndex = -1;
 712
 713         for ( i=0; i<n; i++ )
 714         {
 715             int w = m_widths[i];
 716             if ( w > bestWidth )
 717             {
 718                 bestIndex = (int)i;
 719                 bestWidth = w;
 720             }
 721         }
 722
 723         m_widestWidth = bestWidth;
 724         m_widestItem = bestIndex;
 725
 726         m_findWidest = false;
 727     }
 728 }
 729
 730 wxSize wxVListBoxComboPopup::GetAdjustedSize( int minWidth, int prefHeight, int maxHeight )
 731 {
 732     int height = 250;
 733
 734     maxHeight -= 2;  // Must take borders into account
 735
 736     if ( m_strings.GetCount() )
 737     {
 738         if ( prefHeight > 0 )
 739             height = prefHeight;
 740
 741         if ( height > maxHeight )
 742             height = maxHeight;
 743
 744         int totalHeight = GetTotalHeight(); // + 3;
 745         if ( height >= totalHeight )
 746         {
 747             height = totalHeight;
 748         }
 749         else
 750         {
 751             // Adjust height to a multiple of the height of the first item
 752             // NB: Calculations that take variable height into account
 753             //     are unnecessary.
 754             int fih = GetLineHeight(0);
 755             height -= height % fih;
 756         }
 757     }
 758     else
 759         height = 50;
 760
 761     CalcWidths();
 762
 763     // Take scrollbar into account in width calculations
 764     int widestWidth = m_widestWidth + wxSystemSettings::GetMetric(wxSYS_VSCROLL_X);
 765     return wxSize(minWidth > widestWidth ? minWidth : widestWidth,
 766                   height+2);
 767 }
 768
 769 //void wxVListBoxComboPopup::Populate( int n, const wxString choices[] )
 770 void wxVListBoxComboPopup::Populate( const wxArrayString& choices )
 771 {
 772     int i;
 773
 774     int n = choices.GetCount();
 775
 776     for ( i=0; i<n; i++ )
 777     {
 778         const wxString& item = choices.Item(i);
 779         m_strings.Add(item);
 780     }
 781
 782     m_widths.SetCount(n,-1);
 783     m_widthsDirty = true;
 784
 785     if ( IsCreated() )
 786         wxVListBox::SetItemCount(n);
 787
 788     // Sort the initial choices
 789     if ( m_combo->GetWindowStyle() & wxCB_SORT )
 790         m_strings.Sort();
 791
 792     // Find initial selection
 793     wxString strValue = m_combo->GetValue();
 794     if ( strValue.length() )
 795         m_value = m_strings.Index(strValue);
 796 }
 797
 798 // ----------------------------------------------------------------------------
 799 // wxOwnerDrawnComboBox
 800 // ----------------------------------------------------------------------------
 801
 802
 803 BEGIN_EVENT_TABLE(wxOwnerDrawnComboBox, wxComboCtrl)
 804 END_EVENT_TABLE()
 805
 806
 807 #if wxUSE_EXTENDED_RTTI
 808 IMPLEMENT_DYNAMIC_CLASS2_XTI(wxOwnerDrawnComboBox, wxComboCtrl, wxControlWithItems, "wx/odcombo.h")
 809
 810 wxBEGIN_PROPERTIES_TABLE(wxOwnerDrawnComboBox)
 811 wxEND_PROPERTIES_TABLE()
 812
 813 wxBEGIN_HANDLERS_TABLE(wxOwnerDrawnComboBox)
 814 wxEND_HANDLERS_TABLE()
 815
 816 wxCONSTRUCTOR_5( wxOwnerDrawnComboBox , wxWindow* , Parent , wxWindowID , Id , wxString , Value , wxPoint , Position , wxSize , Size )
 817 #else
 818 IMPLEMENT_DYNAMIC_CLASS2(wxOwnerDrawnComboBox, wxComboCtrl, wxControlWithItems)
 819 #endif
 820
 821 void wxOwnerDrawnComboBox::Init()
 822 {
 823 }
 824
 825 bool wxOwnerDrawnComboBox::Create(wxWindow *parent,
 826                                   wxWindowID id,
 827                                   const wxString& value,
 828                                   const wxPoint& pos,
 829                                   const wxSize& size,
 830                                   long style,
 831                                   const wxValidator& validator,
 832                                   const wxString& name)
 833 {
 834     return wxComboCtrl::Create(parent,id,value,pos,size,style,validator,name);
 835 }
 836
 837 wxOwnerDrawnComboBox::wxOwnerDrawnComboBox(wxWindow *parent,
 838                                            wxWindowID id,
 839                                            const wxString& value,
 840                                            const wxPoint& pos,
 841                                            const wxSize& size,
 842                                            const wxArrayString& choices,
 843                                            long style,
 844                                            const wxValidator& validator,
 845                                            const wxString& name)
 846     : wxComboCtrl()
 847 {
 848     Init();
 849
 850     Create(parent,id,value,pos,size,choices,style, validator, name);
 851 }
 852
 853 bool wxOwnerDrawnComboBox::Create(wxWindow *parent,
 854                                   wxWindowID id,
 855                                   const wxString& value,
 856                                   const wxPoint& pos,
 857                                   const wxSize& size,
 858                                   const wxArrayString& choices,
 859                                   long style,
 860                                   const wxValidator& validator,
 861                                   const wxString& name)
 862 {
 863     m_initChs = choices;
 864     //wxCArrayString chs(choices);
 865
 866     //return Create(parent, id, value, pos, size, chs.GetCount(),
 867     //              chs.GetStrings(), style, validator, name);
 868     return Create(parent, id, value, pos, size, 0,
 869                   NULL, style, validator, name);
 870 }
 871
 872 bool wxOwnerDrawnComboBox::Create(wxWindow *parent,
 873                                   wxWindowID id,
 874                                   const wxString& value,
 875                                   const wxPoint& pos,
 876                                   const wxSize& size,
 877                                   int n,
 878                                   const wxString choices[],
 879                                   long style,
 880                                   const wxValidator& validator,
 881                                   const wxString& name)
 882 {
 883
 884     if ( !Create(parent, id, value, pos, size, style,
 885                  validator, name) )
 886     {
 887         return false;
 888     }
 889
 890     int i;
 891     for ( i=0; i<n; i++ )
 892         m_initChs.Add(choices[i]);
 893
 894     return true;
 895 }
 896
 897 wxOwnerDrawnComboBox::~wxOwnerDrawnComboBox()
 898 {
 899     if ( m_popupInterface )
 900         GetVListBoxComboPopup()->ClearClientDatas();
 901 }
 902
 903 void wxOwnerDrawnComboBox::DoSetPopupControl(wxComboPopup* popup)
 904 {
 905     if ( !popup )
 906     {
 907         popup = new wxVListBoxComboPopup();
 908     }
 909
 910     wxComboCtrl::DoSetPopupControl(popup);
 911
 912     wxASSERT(popup);
 913
 914     // Add initial choices to the wxVListBox
 915     if ( !GetVListBoxComboPopup()->GetCount() )
 916     {
 917         GetVListBoxComboPopup()->Populate(m_initChs);
 918         m_initChs.Clear();
 919     }
 920 }
 921
 922 // ----------------------------------------------------------------------------
 923 // wxOwnerDrawnComboBox item manipulation methods
 924 // ----------------------------------------------------------------------------
 925
 926 void wxOwnerDrawnComboBox::Clear()
 927 {
 928     EnsurePopupControl();
 929
 930     GetVListBoxComboPopup()->Clear();
 931
 932     SetValue(wxEmptyString);
 933 }
 934
 935 void wxOwnerDrawnComboBox::Delete(unsigned int n)
 936 {
 937     wxCHECK_RET( IsValid(n), _T("invalid index in wxOwnerDrawnComboBox::Delete") );
 938
 939     if ( GetSelection() == (int) n )
 940         SetValue(wxEmptyString);
 941
 942     GetVListBoxComboPopup()->Delete(n);
 943 }
 944
 945 unsigned int wxOwnerDrawnComboBox::GetCount() const
 946 {
 947     if ( !m_popupInterface )
 948         return m_initChs.GetCount();
 949
 950     return GetVListBoxComboPopup()->GetCount();
 951 }
 952
 953 wxString wxOwnerDrawnComboBox::GetString(unsigned int n) const
 954 {
 955     wxCHECK_MSG( IsValid(n), wxEmptyString, _T("invalid index in wxOwnerDrawnComboBox::GetString") );
 956
 957     if ( !m_popupInterface )
 958         return m_initChs.Item(n);
 959
 960     return GetVListBoxComboPopup()->GetString(n);
 961 }
 962
 963 void wxOwnerDrawnComboBox::SetString(unsigned int n, const wxString& s)
 964 {
 965     EnsurePopupControl();
 966
 967     wxCHECK_RET( IsValid(n), _T("invalid index in wxOwnerDrawnComboBox::SetString") );
 968
 969     GetVListBoxComboPopup()->SetString(n,s);
 970 }
 971
 972 int wxOwnerDrawnComboBox::FindString(const wxString& s, bool bCase) const
 973 {
 974     if ( !m_popupInterface )
 975         return m_initChs.Index(s, bCase);
 976
 977     return GetVListBoxComboPopup()->FindString(s, bCase);
 978 }
 979
 980 void wxOwnerDrawnComboBox::Select(int n)
 981 {
 982     EnsurePopupControl();
 983
 984     wxCHECK_RET( (n == wxNOT_FOUND) || IsValid(n), _T("invalid index in wxOwnerDrawnComboBox::Select") );
 985
 986     GetVListBoxComboPopup()->SetSelection(n);
 987
 988     wxString str;
 989     if ( n >= 0 )
 990         str = GetVListBoxComboPopup()->GetString(n);
 991
 992     // Refresh text portion in control
 993     if ( m_text )
 994         m_text->SetValue( str );
 995     else
 996         m_valueString = str;
 997
 998     Refresh();
 999 }
1000
1001 int wxOwnerDrawnComboBox::GetSelection() const
1002 {
1003     if ( !m_popupInterface )
1004         return m_initChs.Index(m_valueString);
1005
1006     return GetVListBoxComboPopup()->GetSelection();
1007 }
1008
1009 int wxOwnerDrawnComboBox::DoAppend(const wxString& item)
1010 {
1011     EnsurePopupControl();
1012     wxASSERT(m_popupInterface);
1013
1014     return GetVListBoxComboPopup()->Append(item);
1015 }
1016
1017 int wxOwnerDrawnComboBox::DoInsert(const wxString& item, unsigned int pos)
1018 {
1019     EnsurePopupControl();
1020
1021     wxCHECK_MSG(!(GetWindowStyle() & wxCB_SORT), -1, wxT("can't insert into sorted list"));
1022     wxCHECK_MSG(IsValidInsert(pos), -1, wxT("invalid index"));
1023
1024     GetVListBoxComboPopup()->Insert(item,pos);
1025
1026     return pos;
1027 }
1028
1029 void wxOwnerDrawnComboBox::DoSetItemClientData(unsigned int n, void* clientData)
1030 {
1031     EnsurePopupControl();
1032
1033     GetVListBoxComboPopup()->SetItemClientData(n,clientData,m_clientDataItemsType);
1034 }
1035
1036 void* wxOwnerDrawnComboBox::DoGetItemClientData(unsigned int n) const
1037 {
1038     if ( !m_popupInterface )
1039         return NULL;
1040
1041     return GetVListBoxComboPopup()->GetItemClientData(n);
1042 }
1043
1044 void wxOwnerDrawnComboBox::DoSetItemClientObject(unsigned int n, wxClientData* clientData)
1045 {
1046     DoSetItemClientData(n, (void*) clientData);
1047 }
1048
1049 wxClientData* wxOwnerDrawnComboBox::DoGetItemClientObject(unsigned int n) const
1050 {
1051     return (wxClientData*) DoGetItemClientData(n);
1052 }
1053
1054 // ----------------------------------------------------------------------------
1055 // wxOwnerDrawnComboBox item drawing and measuring default implementations
1056 // ----------------------------------------------------------------------------
1057
1058 void wxOwnerDrawnComboBox::OnDrawItem( wxDC& dc,
1059                                        const wxRect& rect,
1060                                        int item,
1061                                        int flags ) const
1062 {
1063     if ( flags & wxODCB_PAINTING_CONTROL )
1064     {
1065         dc.DrawText( GetValue(),
1066                      rect.x + GetTextIndent(),
1067                      (rect.height-dc.GetCharHeight())/2 + rect.y );
1068     }
1069     else
1070     {
1071         dc.DrawText( GetVListBoxComboPopup()->GetString(item), rect.x + 2, rect.y );
1072     }
1073 }
1074
1075 wxCoord wxOwnerDrawnComboBox::OnMeasureItem( size_t WXUNUSED(item) ) const
1076 {
1077     return -1;
1078 }
1079
1080 wxCoord wxOwnerDrawnComboBox::OnMeasureItemWidth( size_t WXUNUSED(item) ) const
1081 {
1082     return -1;
1083 }
1084
1085 void wxOwnerDrawnComboBox::OnDrawBackground(wxDC& dc,
1086                                             const wxRect& rect,
1087                                             int WXUNUSED(item),
1088                                             int flags) const
1089 {
1090     // We need only to explicitly draw background for items
1091     // that should have selected background. Also, call PrepareBackground
1092     // always when painting the control so that clipping is done properly.
1093
1094     if ( (flags & wxODCB_PAINTING_SELECTED) ||
1095          ((flags & wxODCB_PAINTING_CONTROL) && HasFlag(wxCB_READONLY)) )
1096     {
1097         int bgFlags = wxCONTROL_SELECTED;
1098
1099         if ( !(flags & wxODCB_PAINTING_CONTROL) )
1100             bgFlags |= wxCONTROL_ISSUBMENU;
1101
1102         PrepareBackground(dc, rect, bgFlags);
1103     }
1104 }
1105
1106 #endif // wxUSE_ODCOMBOBOX