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