src/mac/listbox.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        listbox.cpp
   3 // Purpose:     wxListBox
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     ??/??/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "listbox.h"
  14 #endif
  15
  16 #include "wx/app.h"
  17 #include "wx/listbox.h"
  18 #include "wx/settings.h"
  19 #include "wx/toplevel.h"
  20 #include "wx/dynarray.h"
  21 #include "wx/log.h"
  22
  23 #include "wx/utils.h"
  24
  25 #if !USE_SHARED_LIBRARY
  26   IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl)
  27
  28 BEGIN_EVENT_TABLE(wxListBox, wxControl)
  29     EVT_SIZE( wxListBox::OnSize )
  30 END_EVENT_TABLE()
  31 #endif
  32
  33 #include "wx/mac/uma.h"
  34
  35
  36 typedef struct {
  37  unsigned short instruction;
  38  void (*function)();
  39 } ldefRec, *ldefPtr, **ldefHandle;
  40
  41 extern "C"
  42 {
  43 static pascal void wxMacListDefinition( short message, Boolean isSelected, Rect *drawRect,
  44                                      Cell cell, short dataOffset, short dataLength,
  45                                      ListHandle listHandle ) ;
  46 }
  47
  48 static pascal void wxMacListDefinition( short message, Boolean isSelected, Rect *drawRect,
  49                                      Cell cell, short dataOffset, short dataLength,
  50                                      ListHandle listHandle )
  51 {
  52     FontInfo fontInfo;
  53     GrafPtr savePort;
  54     GrafPtr grafPtr;
  55     RgnHandle savedClipRegion;
  56     SInt32 savedPenMode;
  57     wxListBox*          list;
  58   GetPort(&savePort);
  59   SetPort((**listHandle).port);
  60   grafPtr = (**listHandle).port ;
  61     // typecast our refCon
  62     list = (wxListBox*) GetControlReference( (ControlHandle) GetListRefCon(listHandle) );
  63
  64     //  Calculate the cell rect.
  65
  66     switch( message ) {
  67         case lInitMsg:
  68             break;
  69
  70         case lCloseMsg:
  71             break;
  72
  73         case lDrawMsg:
  74         {
  75             const wxString text = list->m_stringArray[cell.v] ;
  76
  77             //  Save the current clip region, and set the clip region to the area we are about
  78             //  to draw.
  79
  80             savedClipRegion = NewRgn();
  81             GetClip( savedClipRegion );
  82
  83             ClipRect( drawRect );
  84             EraseRect( drawRect );
  85
  86         MoveTo(drawRect->left + 4 , drawRect->top + 10 );
  87         ::TextFont( kFontIDMonaco ) ;
  88         ::TextSize( 9  );
  89         ::TextFace( 0 ) ;
  90
  91         DrawText(text, 0 , text.Length());
  92             //  If the cell is hilited, do the hilite now. Paint the cell contents with the
  93             //  appropriate QuickDraw transform mode.
  94
  95             if( isSelected ) {
  96                 savedPenMode = GetPortPenMode( grafPtr );
  97                 SetPortPenMode( grafPtr, hilitetransfermode );
  98                 PaintRect( drawRect );
  99                 SetPortPenMode( grafPtr, savedPenMode );
 100             }
 101
 102             //  Restore the saved clip region.
 103
 104             SetClip( savedClipRegion );
 105             DisposeRgn( savedClipRegion );
 106             }
 107             break;
 108         case lHiliteMsg:
 109
 110             //  Hilite or unhilite the cell. Paint the cell contents with the
 111             //  appropriate QuickDraw transform mode.
 112
 113             GetPort( &grafPtr );
 114             savedPenMode = GetPortPenMode( grafPtr );
 115             SetPortPenMode( grafPtr, hilitetransfermode );
 116             PaintRect( drawRect );
 117             SetPortPenMode( grafPtr, savedPenMode );
 118             break;
 119         default :
 120           break ;
 121     }
 122     SetPort(savePort);
 123 }
 124
 125 extern "C" void MacDrawStringCell(Rect *cellRect, Cell lCell, ListHandle theList, long refCon) ;
 126 const short kwxMacListWithVerticalScrollbar = 128 ;
 127 const short kwxMacListItemHeight = 14 ;
 128
 129 // ============================================================================
 130 // list box control implementation
 131 // ============================================================================
 132
 133 // Listbox item
 134 wxListBox::wxListBox()
 135 {
 136   m_noItems = 0;
 137   m_selected = 0;
 138   m_macList = NULL ;
 139 }
 140
 141 static ListDefUPP macListDefUPP = NULL ;
 142
 143 bool wxListBox::Create(wxWindow *parent, wxWindowID id,
 144                        const wxPoint& pos,
 145                        const wxSize& size,
 146                        int n, const wxString choices[],
 147                        long style,
 148                        const wxValidator& validator,
 149                        const wxString& name)
 150 {
 151     m_noItems = 0 ; // this will be increased by our append command
 152     m_selected = 0;
 153
 154     Rect bounds ;
 155     Str255 title ;
 156
 157     MacPreControlCreate( parent , id ,  "" , pos , size ,style, validator , name , &bounds , title ) ;
 158
 159     ListDefSpec listDef;
 160     listDef.defType = kListDefUserProcType;
 161     if ( macListDefUPP == NULL )
 162     {
 163       macListDefUPP = NewListDefUPP( wxMacListDefinition );
 164     }
 165         listDef.u.userProc = macListDefUPP ;
 166
 167 #if TARGET_CARBON
 168     Size asize;
 169
 170
 171     CreateListBoxControl( parent->MacGetRootWindow(), &bounds, false, 0, 1, false, true,
 172                           kwxMacListItemHeight, kwxMacListItemHeight, false, &listDef, &m_macControl );
 173
 174     GetControlData(m_macControl, kControlNoPart, kControlListBoxListHandleTag,
 175                    sizeof(ListHandle), (Ptr) &m_macList, &asize);
 176
 177     SetControlReference(m_macControl, (long) this);
 178     SetControlVisibility(m_macControl, false, false);
 179
 180 #else
 181
 182     long    result ;
 183
 184     m_macControl = ::NewControl( parent->MacGetRootWindow() , &bounds , title , false ,
 185                   kwxMacListWithVerticalScrollbar , 0 , 0,
 186                   kControlListBoxProc , (long) this ) ;
 187     ::GetControlData( m_macControl , kControlNoPart , kControlListBoxListHandleTag ,
 188                sizeof( ListHandle ) , (char*) &m_macList  , &result ) ;
 189
 190     HLock( (Handle) m_macList ) ;
 191     ldefHandle ldef ;
 192     ldef = (ldefHandle) NewHandle( sizeof(ldefRec) ) ;
 193     if (  (**m_macList).listDefProc != NULL )
 194     {
 195       (**ldef).instruction = 0x4EF9;  /* JMP instruction */
 196       (**ldef).function = (void(*)()) listDef.u.userProc;
 197       (**m_macList).listDefProc = (Handle) ldef ;
 198     }
 199
 200     Point pt = (**m_macList).cellSize ;
 201     pt.v = kwxMacListItemHeight ;
 202     LCellSize( pt , m_macList ) ;
 203     LAddColumn( 1 , 0 , m_macList ) ;
 204 #endif
 205     OptionBits  options = 0;
 206     if ( style & wxLB_MULTIPLE )
 207     {
 208         options += lNoExtend ;
 209     }
 210     else if ( style & wxLB_EXTENDED )
 211     {
 212         options += lExtendDrag ;
 213     }
 214     else
 215     {
 216         options = lOnlyOne ;
 217     }
 218     SetListSelectionFlags(m_macList, options);
 219
 220     MacPostControlCreate() ;
 221
 222     for ( int i = 0 ; i < n ; i++ )
 223     {
 224         Append( choices[i] ) ;
 225     }
 226
 227     LSetDrawingMode( true , m_macList ) ;
 228
 229     return TRUE;
 230 }
 231
 232 wxListBox::~wxListBox()
 233 {
 234     Free() ;
 235     if ( m_macList )
 236     {
 237 #if !TARGET_CARBON
 238       DisposeHandle( (**m_macList).listDefProc ) ;
 239       (**m_macList).listDefProc = NULL ;
 240 #endif
 241         m_macList = NULL ;
 242     }
 243 }
 244
 245 void wxListBox::Free()
 246 {
 247 #if wxUSE_OWNER_DRAWN
 248     if ( m_windowStyle & wxLB_OWNERDRAW )
 249     {
 250         size_t uiCount = m_aItems.Count();
 251         while ( uiCount-- != 0 ) {
 252             delete m_aItems[uiCount];
 253         }
 254
 255         m_aItems.Clear();
 256     }
 257     else
 258 #endif // wxUSE_OWNER_DRAWN
 259     if ( HasClientObjectData() )
 260     {
 261         for ( size_t n = 0; n < (size_t)m_noItems; n++ )
 262         {
 263             delete GetClientObject(n);
 264         }
 265     }
 266 }
 267
 268 void  wxListBox::DoSetSize(int x, int y,
 269             int width, int height,
 270             int sizeFlags )
 271 {
 272     wxControl::DoSetSize( x , y , width , height , sizeFlags ) ;
 273 #if TARGET_CARBON
 274     Rect bounds ;
 275     GetControlBounds( m_macControl , &bounds ) ;
 276     ControlRef control = GetListVerticalScrollBar( m_macList ) ;
 277     if ( control )
 278     {
 279         Rect scrollbounds ;
 280         GetControlBounds( control , &scrollbounds ) ;
 281         if( scrollbounds.right != bounds.right + 1 )
 282         {
 283             UMAMoveControl( control , bounds.right - (scrollbounds.right - scrollbounds.left) + 1 ,
 284                 scrollbounds.top ) ;
 285         }
 286     }
 287 #endif
 288 }
 289 void wxListBox::DoSetFirstItem(int N)
 290 {
 291     MacScrollTo( N ) ;
 292 }
 293
 294 void wxListBox::Delete(int N)
 295 {
 296     wxCHECK_RET( N >= 0 && N < m_noItems,
 297                  wxT("invalid index in wxListBox::Delete") );
 298
 299 #if wxUSE_OWNER_DRAWN
 300     delete m_aItems[N];
 301     m_aItems.RemoveAt(N);
 302 #else // !wxUSE_OWNER_DRAWN
 303     if ( HasClientObjectData() )
 304     {
 305         delete GetClientObject(N);
 306     }
 307 #endif // wxUSE_OWNER_DRAWN/!wxUSE_OWNER_DRAWN
 308     m_stringArray.Remove( N ) ;
 309     m_dataArray.RemoveAt( N ) ;
 310     m_noItems --;
 311
 312     MacDelete( N ) ;
 313 }
 314
 315 int wxListBox::DoAppend(const wxString& item)
 316 {
 317     int index = m_noItems ;
 318     if( wxApp::s_macDefaultEncodingIsPC )
 319     {
 320         m_stringArray.Add( wxMacMakeMacStringFromPC( item ) ) ;
 321         m_dataArray.Add( NULL );
 322     }
 323     else {
 324         m_stringArray.Add( item ) ;
 325         m_dataArray.Add( NULL );
 326     }
 327     m_noItems ++;
 328     DoSetItemClientData( index , NULL ) ;
 329     MacAppend( item ) ;
 330
 331     return index ;
 332 }
 333
 334 void wxListBox::DoSetItems(const wxArrayString& choices, void** clientData)
 335 {
 336   MacSetRedraw( false ) ;
 337   Clear() ;
 338   int n = choices.GetCount();
 339
 340   for( int i = 0 ; i < n ; ++i )
 341   {
 342     if ( clientData )
 343     {
 344 #if wxUSE_OWNER_DRAWN
 345             wxASSERT_MSG(clientData[i] == NULL,
 346                          wxT("Can't use client data with owner-drawn listboxes"));
 347 #else // !wxUSE_OWNER_DRAWN
 348         Append( choices[i] , clientData[i] ) ;
 349  #endif
 350     }
 351     else
 352         Append( choices[i] ) ;
 353   }
 354
 355 #if wxUSE_OWNER_DRAWN
 356     if ( m_windowStyle & wxLB_OWNERDRAW ) {
 357         // first delete old items
 358         size_t ui = m_aItems.Count();
 359         while ( ui-- != 0 ) {
 360             delete m_aItems[ui];
 361         }
 362         m_aItems.Empty();
 363
 364         // then create new ones
 365         for ( ui = 0; ui < (size_t)m_noItems; ui++ ) {
 366             wxOwnerDrawn *pNewItem = CreateItem(ui);
 367             pNewItem->SetName(choices[ui]);
 368             m_aItems.Add(pNewItem);
 369         }
 370     }
 371 #endif // wxUSE_OWNER_DRAWN
 372   MacSetRedraw( true ) ;
 373 }
 374
 375 bool wxListBox::HasMultipleSelection() const
 376 {
 377     return (m_windowStyle & wxLB_MULTIPLE) || (m_windowStyle & wxLB_EXTENDED);
 378 }
 379
 380 int wxListBox::FindString(const wxString& st) const
 381 {
 382     wxString s ;
 383     if( wxApp::s_macDefaultEncodingIsPC )
 384     {
 385         s = wxMacMakeMacStringFromPC( st ) ;
 386     }
 387     else
 388         s = st ;
 389
 390     if ( s.Right(1) == "*" )
 391     {
 392         wxString search = s.Left( s.Length() - 1 ) ;
 393         int len = search.Length() ;
 394         Str255 s1 , s2 ;
 395
 396 #if TARGET_CARBON
 397         c2pstrcpy( (StringPtr) s2 , search.c_str() ) ;
 398 #else
 399         strcpy( (char *) s2 , search.c_str() ) ;
 400         c2pstr( (char *) s2 ) ;
 401 #endif
 402
 403         for ( int i = 0 ; i < m_noItems ; ++ i )
 404         {
 405 #if TARGET_CARBON
 406             c2pstrcpy( (StringPtr) s1 , m_stringArray[i].Left( len ).c_str() ) ;
 407 #else
 408             strcpy( (char *) s1 , m_stringArray[i].Left( len ).c_str() ) ;
 409             c2pstr( (char *) s1 ) ;
 410 #endif
 411             if ( EqualString( s1 , s2 , false , false ) )
 412                 return i ;
 413         }
 414         if ( s.Left(1) == "*" && s.Length() > 1 )
 415         {
 416             s.MakeLower() ;
 417             for ( int i = 0 ; i < m_noItems ; ++i )
 418             {
 419                 if ( GetString(i).Lower().Matches(s) )
 420                     return i ;
 421             }
 422         }
 423
 424     }
 425     else
 426     {
 427         Str255 s1 , s2 ;
 428
 429 #if TARGET_CARBON
 430         c2pstrcpy( (StringPtr) s2 , s.c_str() ) ;
 431 #else
 432         strcpy( (char *) s2 , s.c_str() ) ;
 433         c2pstr( (char *) s2 ) ;
 434 #endif
 435
 436         for ( int i = 0 ; i < m_noItems ; ++ i )
 437         {
 438 #if TARGET_CARBON
 439             c2pstrcpy( (StringPtr) s1 , m_stringArray[i].c_str() ) ;
 440 #else
 441             strcpy( (char *) s1 , m_stringArray[i].c_str() ) ;
 442             c2pstr( (char *) s1 ) ;
 443 #endif
 444             if ( EqualString( s1 , s2 , false , false ) )
 445                 return i ;
 446         }
 447    }
 448    return -1;
 449 }
 450
 451 void wxListBox::Clear()
 452 {
 453   Free();
 454   m_noItems = 0;
 455   m_stringArray.Empty() ;
 456   m_dataArray.Empty() ;
 457   MacClear() ;
 458 }
 459
 460 void wxListBox::SetSelection(int N, bool select)
 461 {
 462     wxCHECK_RET( N >= 0 && N < m_noItems,
 463                  "invalid index in wxListBox::SetSelection" );
 464       MacSetSelection( N , select ) ;
 465       GetSelections( m_selectionPreImage ) ;
 466 }
 467
 468 bool wxListBox::IsSelected(int N) const
 469 {
 470     wxCHECK_MSG( N >= 0 && N < m_noItems, FALSE,
 471                  "invalid index in wxListBox::Selected" );
 472
 473       return MacIsSelected( N ) ;
 474 }
 475
 476 void *wxListBox::DoGetItemClientData(int N) const
 477 {
 478     wxCHECK_MSG( N >= 0 && N < m_noItems, NULL,
 479                  wxT("invalid index in wxListBox::GetClientData"));
 480
 481     return (void *)m_dataArray[N];
 482 }
 483
 484 wxClientData *wxListBox::DoGetItemClientObject(int N) const
 485 {
 486     return (wxClientData *) DoGetItemClientData( N ) ;
 487 }
 488
 489 void wxListBox::DoSetItemClientData(int N, void *Client_data)
 490 {
 491     wxCHECK_RET( N >= 0 && N < m_noItems,
 492                  "invalid index in wxListBox::SetClientData" );
 493
 494 #if wxUSE_OWNER_DRAWN
 495     if ( m_windowStyle & wxLB_OWNERDRAW )
 496     {
 497         // client data must be pointer to wxOwnerDrawn, otherwise we would crash
 498         // in OnMeasure/OnDraw.
 499         wxFAIL_MSG(wxT("Can't use client data with owner-drawn listboxes"));
 500     }
 501 #endif // wxUSE_OWNER_DRAWN
 502     wxASSERT_MSG( m_dataArray.GetCount() >= N , "invalid client_data array" ) ;
 503
 504     if ( m_dataArray.GetCount() > N )
 505     {
 506         m_dataArray[N] = (char*) Client_data ;
 507     }
 508     else
 509     {
 510         m_dataArray.Add( (char*) Client_data ) ;
 511     }
 512 }
 513
 514 void wxListBox::DoSetItemClientObject(int n, wxClientData* clientData)
 515 {
 516     DoSetItemClientData(n, clientData);
 517 }
 518
 519 // Return number of selections and an array of selected integers
 520 int wxListBox::GetSelections(wxArrayInt& aSelections) const
 521 {
 522     return MacGetSelections( aSelections ) ;
 523 }
 524
 525 // Get single selection, for single choice list items
 526 int wxListBox::GetSelection() const
 527 {
 528     return MacGetSelection() ;
 529 }
 530
 531 // Find string for position
 532 wxString wxListBox::GetString(int N) const
 533 {
 534     if( wxApp::s_macDefaultEncodingIsPC )
 535     {
 536         return      wxMacMakePCStringFromMac( m_stringArray[N] ) ;
 537     }
 538     else
 539         return m_stringArray[N]  ;
 540 }
 541
 542 void wxListBox::DoInsertItems(const wxArrayString& items, int pos)
 543 {
 544     wxCHECK_RET( pos >= 0 && pos <= m_noItems,
 545                  wxT("invalid index in wxListBox::InsertItems") );
 546
 547     int nItems = items.GetCount();
 548
 549     for ( int i = 0 ; i < nItems ; i++ )
 550     {
 551         m_stringArray.Insert( items[i] , pos + i ) ;
 552         m_dataArray.Insert( NULL , pos + i ) ;
 553         MacInsert( pos + i , items[i] ) ;
 554     }
 555
 556     m_noItems += nItems;
 557 }
 558
 559 void wxListBox::SetString(int N, const wxString& s)
 560 {
 561     wxString str ;
 562     if( wxApp::s_macDefaultEncodingIsPC )
 563     {
 564         str = wxMacMakeMacStringFromPC( s )  ;
 565     }
 566     else
 567         str = s ;
 568     m_stringArray[N] = str ;
 569     MacSet( N , s ) ;
 570 }
 571
 572 wxSize wxListBox::DoGetBestSize() const
 573 {
 574     return wxSize(100, 100);
 575 }
 576
 577 int wxListBox::GetCount() const
 578 {
 579     return m_noItems;
 580 }
 581
 582 void wxListBox::SetupColours()
 583 {
 584     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
 585     SetForegroundColour(GetParent()->GetForegroundColour());
 586 }
 587
 588 void wxListBox::Refresh(bool eraseBack, const wxRect *rect)
 589 {
 590     wxControl::Refresh( eraseBack , rect ) ;
 591 //    MacRedrawControl() ;
 592 }
 593
 594 #if wxUSE_OWNER_DRAWN
 595
 596 class wxListBoxItem : public wxOwnerDrawn
 597 {
 598 public:
 599     wxListBoxItem(const wxString& str = "");
 600 };
 601
 602 wxListBoxItem::wxListBoxItem(const wxString& str) : wxOwnerDrawn(str, FALSE)
 603 {
 604     // no bitmaps/checkmarks
 605     SetMarginWidth(0);
 606 }
 607
 608 wxOwnerDrawn *wxListBox::CreateItem(size_t n)
 609 {
 610     return new wxListBoxItem();
 611 }
 612
 613 #endif  //USE_OWNER_DRAWN
 614
 615 // ============================================================================
 616 // list box control implementation
 617 // ============================================================================
 618
 619 void MacDrawStringCell(Rect *cellRect, Cell lCell, ListHandle theList, long refCon)
 620 {
 621     wxListBox*          list;
 622     // typecast our refCon
 623     list = (wxListBox*)refCon;
 624
 625     MoveTo(cellRect->left + 4 , cellRect->top + 10 );
 626     const wxString text = list->m_stringArray[lCell.v] ;
 627     ::TextFont( kFontIDMonaco ) ;
 628     ::TextSize( 9  );
 629     ::TextFace( 0 ) ;
 630     DrawText(text, 0 , text.Length());
 631
 632 }
 633
 634 void wxListBox::MacDelete( int N )
 635 {
 636     LDelRow( 1 , N , m_macList) ;
 637     Refresh();
 638 }
 639
 640 void wxListBox::MacInsert( int n , const char * text)
 641 {
 642     Cell cell = { 0 , 0 } ;
 643     cell.v = n ;
 644     LAddRow( 1 , cell.v , m_macList ) ;
 645 //    LSetCell(text, strlen(text), cell, m_macList);
 646     Refresh();
 647 }
 648
 649 void wxListBox::MacAppend( const char * text)
 650 {
 651     Cell cell = { 0 , 0 } ;
 652     cell.v = (**m_macList).dataBounds.bottom ;
 653     LAddRow( 1 , cell.v , m_macList ) ;
 654  //   LSetCell(text, strlen(text), cell, m_macList);
 655     Refresh();
 656 }
 657
 658 void wxListBox::MacClear()
 659 {
 660     LDelRow( (**m_macList).dataBounds.bottom , 0 , m_macList ) ;
 661     Refresh();
 662 }
 663
 664 void wxListBox::MacSetSelection( int n , bool select )
 665 {
 666     Cell cell = { 0 , 0 } ;
 667     if ( ! (m_windowStyle & wxLB_MULTIPLE) )
 668     {
 669     if ( LGetSelect( true , &cell , m_macList ) )
 670     {
 671         LSetSelect( false , cell , m_macList ) ;
 672     }
 673     }
 674
 675     cell.v = n ;
 676     LSetSelect( select , cell , m_macList ) ;
 677     LAutoScroll( m_macList ) ;
 678     Refresh();
 679 }
 680
 681 bool wxListBox::MacIsSelected( int n ) const
 682 {
 683     Cell cell = { 0 , 0 } ;
 684     cell.v = n ;
 685     return LGetSelect( false , &cell , m_macList ) ;
 686 }
 687
 688 void wxListBox::MacDestroy()
 689 {
 690 //    DisposeExtLDEFInfo( m_macList ) ;
 691 }
 692
 693 int wxListBox::MacGetSelection() const
 694 {
 695     Cell cell = { 0 , 0 } ;
 696     if ( LGetSelect( true , &cell , m_macList ) )
 697         return cell.v ;
 698     else
 699         return -1 ;
 700 }
 701
 702 int wxListBox::MacGetSelections( wxArrayInt& aSelections ) const
 703 {
 704     int no_sel = 0 ;
 705
 706     aSelections.Empty();
 707
 708     Cell cell = { 0 , 0 } ;
 709     cell.v = 0 ;
 710
 711     while ( LGetSelect( true , &cell , m_macList ) )
 712     {
 713         aSelections.Add( cell.v ) ;
 714         no_sel++ ;
 715         cell.v++ ;
 716     }
 717     return no_sel ;
 718 }
 719
 720 void wxListBox::MacSet( int n , const char * text )
 721 {
 722     // our implementation does not store anything in the list
 723     // so we just have to redraw
 724     Cell cell = { 0 , 0 } ;
 725     cell.v = n ;
 726 //  LSetCell(text, strlen(text), cell, m_macList);
 727     Refresh();
 728 }
 729
 730 void wxListBox::MacScrollTo( int n )
 731 {
 732     // TODO implement scrolling
 733 }
 734
 735 void wxListBox::OnSize( const wxSizeEvent &event)
 736 {
 737     Point pt;
 738
 739 #if TARGET_CARBON
 740     GetListCellSize(m_macList, &pt);
 741 #else
 742     pt = (**m_macList).cellSize ;
 743 #endif
 744     pt.h =  m_width - 15  ;
 745     LCellSize( pt , m_macList ) ;
 746 }
 747
 748 void wxListBox::MacHandleControlClick( ControlHandle control , SInt16 controlpart )
 749 {
 750     Boolean wasDoubleClick = false ;
 751     long    result ;
 752
 753     ::GetControlData( m_macControl , kControlNoPart , kControlListBoxDoubleClickTag , sizeof( wasDoubleClick ) , (char*) &wasDoubleClick  , &result ) ;
 754     if ( !wasDoubleClick )
 755     {
 756         MacDoClick() ;
 757     }
 758     else
 759     {
 760         MacDoDoubleClick() ;
 761     }
 762 }
 763
 764 void wxListBox::MacSetRedraw( bool doDraw )
 765 {
 766     LSetDrawingMode( doDraw , m_macList ) ;
 767
 768 }
 769
 770 void wxListBox::MacDoClick()
 771 {
 772     wxArrayInt aSelections;
 773     int n, count = GetSelections(aSelections);
 774
 775     if ( count == m_selectionPreImage.GetCount() )
 776     {
 777         bool hasChanged = false ;
 778         for ( int i = 0 ; i < count ; ++i )
 779         {
 780             if ( aSelections[i] != m_selectionPreImage[i] )
 781             {
 782                 hasChanged = true ;
 783                 break ;
 784             }
 785         }
 786         if ( !hasChanged )
 787         {
 788             return ;
 789         }
 790     }
 791
 792     m_selectionPreImage = aSelections;
 793
 794     wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, m_windowId);
 795     event.SetEventObject( this );
 796
 797     if ( count > 0 )
 798     {
 799         n = aSelections[0];
 800         if ( HasClientObjectData() )
 801             event.SetClientObject( GetClientObject(n) );
 802         else if ( HasClientUntypedData() )
 803             event.SetClientData( GetClientData(n) );
 804         event.SetString( GetString(n) );
 805     }
 806     else
 807     {
 808          n = -1;
 809     }
 810
 811     event.m_commandInt = n;
 812
 813     GetEventHandler()->ProcessEvent(event);
 814 }
 815
 816 void wxListBox::MacDoDoubleClick()
 817 {
 818     wxCommandEvent event(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, m_windowId);
 819     event.SetEventObject( this );
 820     GetEventHandler()->ProcessEvent(event) ;
 821 }