src/gtk/listbox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        listbox.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "listbox.h"
  13 #endif
  14
  15 #include "wx/dynarray.h"
  16 #include "wx/listbox.h"
  17 #include "wx/utils.h"
  18 #include "wx/intl.h"
  19 #include "wx/checklst.h"
  20 #include "wx/settings.h"
  21
  22 #if wxUSE_TOOLTIPS
  23 #include "wx/tooltip.h"
  24 #endif
  25
  26 #if wxUSE_DRAG_AND_DROP
  27 #include "wx/dnd.h"
  28 #endif
  29
  30 #include "gdk/gdk.h"
  31 #include "gtk/gtk.h"
  32
  33 //-----------------------------------------------------------------------------
  34 // idle system
  35 //-----------------------------------------------------------------------------
  36
  37 extern void wxapp_install_idle_handler();
  38 extern bool g_isIdle;
  39
  40 //-------------------------------------------------------------------------
  41 // conditional compilation
  42 //-------------------------------------------------------------------------
  43
  44 #if (GTK_MINOR_VERSION > 0)
  45 #define NEW_GTK_SCROLL_CODE
  46 #endif
  47
  48 //-----------------------------------------------------------------------------
  49 // private functions
  50 //-----------------------------------------------------------------------------
  51
  52 #define CHECKBOX_STRING "[-] "
  53
  54 // checklistboxes have "[±] " prepended to their lables, this macro removes it
  55 // (NB: 4 below is the length of CHECKBOX_STRING above)
  56 //
  57 // the argument to it is a "const char *" pointer
  58 #define GET_REAL_LABEL(label) ((m_hasCheckBoxes)?(label)+4 : (label))
  59
  60 //-----------------------------------------------------------------------------
  61 // data
  62 //-----------------------------------------------------------------------------
  63
  64 extern bool   g_blockEventsOnDrag;
  65 extern bool   g_blockEventsOnScroll;
  66
  67 static bool   g_hasDoubleClicked = FALSE;
  68
  69 //-----------------------------------------------------------------------------
  70 // "button_release_event"
  71 //-----------------------------------------------------------------------------
  72
  73 /* we would normally emit a wxEVT_COMMAND_LISTBOX_DOUBLECLICKED event once
  74    a GDK_2BUTTON_PRESS occurs, but this has the particular problem of the
  75    listbox keeping the focus until it receives a GDK_BUTTON_RELEASE event.
  76    this can lead to race conditions so that we emit the dclick event
  77    after the GDK_BUTTON_RELEASE event after the GDK_2BUTTON_PRESS event */
  78
  79 static gint
  80 gtk_listbox_button_release_callback( GtkWidget *widget, GdkEventButton *gdk_event, wxListBox *listbox )
  81 {
  82     if (g_isIdle) wxapp_install_idle_handler();
  83
  84     if (g_blockEventsOnDrag) return FALSE;
  85     if (g_blockEventsOnScroll) return FALSE;
  86
  87     if (!listbox->m_hasVMT) return FALSE;
  88
  89     if (!g_hasDoubleClicked) return FALSE;
  90
  91         wxCommandEvent event( wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, listbox->GetId() );
  92         event.SetEventObject( listbox );
  93
  94         wxArrayInt aSelections;
  95         int count = listbox->GetSelections(aSelections);
  96         if ( count > 0 )
  97         {
  98             event.m_commandInt = aSelections[0] ;
  99             event.m_clientData = listbox->GetClientData( event.m_commandInt );
 100             wxString str(listbox->GetString(event.m_commandInt));
 101             if (!str.IsEmpty()) event.m_commandString = str;
 102         }
 103         else
 104         {
 105             event.m_commandInt = -1 ;
 106             event.m_commandString.Empty();
 107         }
 108
 109         listbox->GetEventHandler()->ProcessEvent( event );
 110
 111     return FALSE;
 112 }
 113
 114 //-----------------------------------------------------------------------------
 115 // "button_press_event"
 116 //-----------------------------------------------------------------------------
 117
 118 static gint
 119 gtk_listbox_button_press_callback( GtkWidget *widget, GdkEventButton *gdk_event, wxListBox *listbox )
 120 {
 121     if (g_isIdle) wxapp_install_idle_handler();
 122
 123     if (g_blockEventsOnDrag) return FALSE;
 124     if (g_blockEventsOnScroll) return FALSE;
 125
 126     if (!listbox->m_hasVMT) return FALSE;
 127
 128     int sel = listbox->GetIndex( widget );
 129
 130     if ((listbox->m_hasCheckBoxes) && (gdk_event->x < 15) && (gdk_event->type != GDK_2BUTTON_PRESS))
 131     {
 132         wxCheckListBox *clb = (wxCheckListBox *)listbox;
 133
 134         clb->Check( sel, !clb->IsChecked(sel) );
 135
 136         wxCommandEvent event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 137         event.SetEventObject( listbox );
 138         event.SetInt( sel );
 139         listbox->GetEventHandler()->ProcessEvent( event );
 140     }
 141
 142     /* emit wxEVT_COMMAND_LISTBOX_DOUBLECLICKED later */
 143     g_hasDoubleClicked = (gdk_event->type == GDK_2BUTTON_PRESS);
 144
 145     return FALSE;
 146 }
 147
 148 //-----------------------------------------------------------------------------
 149 // "key_press_event"
 150 //-----------------------------------------------------------------------------
 151
 152 static gint
 153 gtk_listbox_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxListBox *listbox )
 154 {
 155     if (g_isIdle) wxapp_install_idle_handler();
 156
 157     if (g_blockEventsOnDrag) return FALSE;
 158
 159     if (!listbox->m_hasVMT) return FALSE;
 160
 161     if (gdk_event->keyval != ' ') return FALSE;
 162
 163     int sel = listbox->GetIndex( widget );
 164
 165     wxCheckListBox *clb = (wxCheckListBox *)listbox;
 166
 167     clb->Check( sel, !clb->IsChecked(sel) );
 168
 169     wxCommandEvent event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 170     event.SetEventObject( listbox );
 171     event.SetInt( sel );
 172     listbox->GetEventHandler()->ProcessEvent( event );
 173
 174     return FALSE;
 175 }
 176
 177 //-----------------------------------------------------------------------------
 178 // "select" and "deselect"
 179 //-----------------------------------------------------------------------------
 180
 181 static void gtk_listitem_select_callback( GtkWidget *WXUNUSED(widget), wxListBox *listbox )
 182 {
 183     if (g_isIdle) wxapp_install_idle_handler();
 184
 185     if (!listbox->m_hasVMT) return;
 186     if (g_blockEventsOnDrag) return;
 187
 188     wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, listbox->GetId() );
 189
 190     wxArrayInt aSelections;
 191     int count = listbox->GetSelections(aSelections);
 192     if ( count > 0 )
 193     {
 194         event.m_commandInt = aSelections[0] ;
 195         event.m_clientData = listbox->GetClientData( event.m_commandInt );
 196         wxString str(listbox->GetString(event.m_commandInt));
 197         if (!str.IsEmpty()) event.m_commandString = str;
 198     }
 199     else
 200     {
 201         event.m_commandInt = -1 ;
 202         event.m_commandString.Empty();
 203     }
 204
 205     event.SetEventObject( listbox );
 206
 207     listbox->GetEventHandler()->ProcessEvent( event );
 208 }
 209
 210 //-----------------------------------------------------------------------------
 211 // wxListBox
 212 //-----------------------------------------------------------------------------
 213
 214 IMPLEMENT_DYNAMIC_CLASS(wxListBox,wxControl)
 215
 216 wxListBox::wxListBox()
 217 {
 218     m_list = (GtkList *) NULL;
 219     m_hasCheckBoxes = FALSE;
 220 }
 221
 222 bool wxListBox::Create( wxWindow *parent, wxWindowID id,
 223                         const wxPoint &pos, const wxSize &size,
 224                         int n, const wxString choices[],
 225                         long style, const wxValidator& validator, const wxString &name )
 226 {
 227     m_needParent = TRUE;
 228     m_acceptsFocus = TRUE;
 229
 230     PreCreation( parent, id, pos, size, style, name );
 231
 232     SetValidator( validator );
 233
 234     m_widget = gtk_scrolled_window_new( (GtkAdjustment*) NULL, (GtkAdjustment*) NULL );
 235     if (style & wxLB_ALWAYS_SB)
 236     {
 237       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 238         GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS );
 239     }
 240     else
 241     {
 242       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 243         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 244     }
 245
 246     m_list = GTK_LIST( gtk_list_new() );
 247
 248     GtkSelectionMode mode = GTK_SELECTION_BROWSE;
 249     if (style & wxLB_MULTIPLE)
 250         mode = GTK_SELECTION_MULTIPLE;
 251     else if (style & wxLB_EXTENDED)
 252         mode = GTK_SELECTION_EXTENDED;
 253
 254     gtk_list_set_selection_mode( GTK_LIST(m_list), mode );
 255
 256 #ifdef NEW_GTK_SCROLL_CODE
 257     gtk_scrolled_window_add_with_viewport( GTK_SCROLLED_WINDOW(m_widget), GTK_WIDGET(m_list) );
 258 #else
 259     gtk_container_add( GTK_CONTAINER(m_widget), GTK_WIDGET(m_list) );
 260 #endif
 261
 262     gtk_widget_show( GTK_WIDGET(m_list) );
 263
 264     wxSize newSize = size;
 265     if (newSize.x == -1) newSize.x = 100;
 266     if (newSize.y == -1) newSize.y = 110;
 267     SetSize( newSize.x, newSize.y );
 268
 269     for (int i = 0; i < n; i++)
 270     {
 271         m_clientDataList.Append( (wxObject*) NULL );
 272         m_clientObjectList.Append( (wxObject*) NULL );
 273
 274         GtkWidget *list_item;
 275
 276         wxString str(choices[i]);
 277         if (m_hasCheckBoxes)
 278         {
 279             str.Prepend(CHECKBOX_STRING);
 280         }
 281
 282         list_item = gtk_list_item_new_with_label( str.mbc_str() );
 283
 284         gtk_container_add( GTK_CONTAINER(m_list), list_item );
 285
 286         gtk_signal_connect( GTK_OBJECT(list_item), "select",
 287           GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 288
 289         if (style & wxLB_MULTIPLE)
 290             gtk_signal_connect( GTK_OBJECT(list_item), "deselect",
 291               GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 292
 293         gtk_signal_connect( GTK_OBJECT(list_item),
 294                             "button_press_event",
 295                             (GtkSignalFunc)gtk_listbox_button_press_callback,
 296                             (gpointer) this );
 297
 298         gtk_signal_connect_after( GTK_OBJECT(list_item),
 299                             "button_release_event",
 300                             (GtkSignalFunc)gtk_listbox_button_release_callback,
 301                             (gpointer) this );
 302
 303         if (m_hasCheckBoxes)
 304         {
 305             gtk_signal_connect( GTK_OBJECT(list_item),
 306                             "key_press_event",
 307                             (GtkSignalFunc)gtk_listbox_key_press_callback,
 308                             (gpointer)this );
 309         }
 310
 311         ConnectWidget( list_item );
 312
 313         gtk_widget_show( list_item );
 314     }
 315
 316     m_parent->DoAddChild( this );
 317
 318     PostCreation();
 319
 320     SetBackgroundColour( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_WINDOW ) );
 321     SetForegroundColour( parent->GetForegroundColour() );
 322     SetFont( parent->GetFont() );
 323
 324     Show( TRUE );
 325
 326     return TRUE;
 327 }
 328
 329 wxListBox::~wxListBox()
 330 {
 331     Clear();
 332 }
 333
 334 void wxListBox::InsertItems(int nItems, const wxString items[], int pos)
 335 {
 336     wxCHECK_RET( m_list != NULL, _T("invalid listbox") );
 337
 338     GList *children = m_list->children;
 339     int length = g_list_length(children);
 340     wxCHECK_RET( pos <= length, _T("invalid index in wxListBox::InsertItems") );
 341
 342     // VZ: it seems that GTK 1.0.6 doesn't has a function to insert an item
 343     //     into a listbox at the given position, this is why we first delete
 344     //     all items after this position, then append these items and then
 345     //     reappend back the old ones.
 346
 347     // first detach the old items
 348     int n; // loop var
 349
 350     if ( pos == length )
 351     {
 352         // no need to do anything complicated
 353         for ( n = 0; n < nItems; n++ )
 354         {
 355             Append(items[n]);
 356         }
 357
 358         return;
 359     }
 360
 361     wxArrayString deletedLabels;
 362     wxArrayPtrVoid deletedData;
 363     wxArrayInt deletedChecks;   // only for check list boxes
 364
 365     GList *child = g_list_nth( children, pos );
 366     for ( n = 0; child != NULL; n++, child = child->next )
 367     {
 368         // save label
 369         GtkBin *bin = GTK_BIN( child->data );
 370         GtkLabel *label = GTK_LABEL( bin->child );
 371
 372         wxString str(GET_REAL_LABEL(label->label));
 373         deletedLabels.Add(str);
 374
 375         // save data
 376         void *clientData = NULL;
 377         wxNode *node = NULL;
 378
 379         if ( n < (int)m_clientObjectList.GetCount() )
 380             node = m_clientObjectList.Nth( n );
 381
 382         if ( node )
 383         {
 384             clientData = node->GetData();
 385             m_clientObjectList.DeleteNode( node );
 386         }
 387
 388         if ( !clientData )
 389         {
 390             if ( n < (int)m_clientDataList.GetCount() )
 391                 node = m_clientDataList.Nth( n );
 392
 393             if ( node )
 394             {
 395                 clientData = node->GetData();
 396                 node = m_clientDataList.Nth( n );
 397             }
 398         }
 399
 400         deletedData.Add(clientData);
 401
 402         // save check state
 403         if ( m_hasCheckBoxes )
 404         {
 405             deletedChecks.Add(((wxCheckListBox *)this)->IsChecked(pos + n));
 406         }
 407     }
 408
 409     int nDeletedCount = n;
 410
 411     gtk_list_clear_items( m_list, pos, length );
 412
 413     // now append the new items
 414     for ( n = 0; n < nItems; n++ )
 415     {
 416         Append(items[n]);
 417     }
 418
 419     // and append the old items too
 420     pos += nItems;  // now the indices are shifter
 421     for ( n = 0; n < nDeletedCount; n++ )
 422     {
 423         Append(deletedLabels[n], deletedData[n]);
 424
 425         if ( m_hasCheckBoxes )
 426         {
 427             ((wxCheckListBox *)this)->Check(pos + n, (bool)deletedChecks[n]);
 428         }
 429     }
 430 }
 431
 432 void wxListBox::AppendCommon( const wxString &item )
 433 {
 434     wxCHECK_RET( m_list != NULL, _T("invalid listbox") );
 435
 436     GtkWidget *list_item;
 437
 438     wxString label(item);
 439     if (m_hasCheckBoxes)
 440     {
 441         label.Prepend(CHECKBOX_STRING);
 442     }
 443
 444     list_item = gtk_list_item_new_with_label( label.mbc_str() );
 445
 446     gtk_container_add( GTK_CONTAINER(m_list), list_item );
 447
 448     gtk_signal_connect( GTK_OBJECT(list_item), "select",
 449       GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 450
 451     if (HasFlag(wxLB_MULTIPLE))
 452         gtk_signal_connect( GTK_OBJECT(list_item), "deselect",
 453           GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 454
 455     gtk_signal_connect( GTK_OBJECT(list_item),
 456                         "button_press_event",
 457                         (GtkSignalFunc)gtk_listbox_button_press_callback,
 458                         (gpointer) this );
 459
 460     if (m_hasCheckBoxes)
 461     {
 462        gtk_signal_connect( GTK_OBJECT(list_item),
 463                            "key_press_event",
 464                            (GtkSignalFunc)gtk_listbox_key_press_callback,
 465                            (gpointer)this );
 466     }
 467
 468     gtk_widget_show( list_item );
 469
 470     ConnectWidget( list_item );
 471
 472     if (GTK_WIDGET_REALIZED(m_widget))
 473     {
 474         gtk_widget_realize( list_item );
 475         gtk_widget_realize( GTK_BIN(list_item)->child );
 476
 477         if (m_widgetStyle) ApplyWidgetStyle();
 478
 479 #if wxUSE_DRAG_AND_DROP
 480 #ifndef NEW_GTK_DND_CODE
 481         if (m_dropTarget) m_dropTarget->RegisterWidget( list_item );
 482 #endif
 483 #endif
 484
 485 #if wxUSE_TOOLTIPS
 486         if (m_tooltip) m_tooltip->Apply( this );
 487 #endif
 488     }
 489 }
 490
 491 void wxListBox::Append( const wxString &item )
 492 {
 493     m_clientDataList.Append( (wxObject*) NULL );
 494     m_clientObjectList.Append( (wxObject*) NULL );
 495
 496     AppendCommon( item );
 497 }
 498
 499 void wxListBox::Append( const wxString &item, void *clientData )
 500 {
 501     m_clientDataList.Append( (wxObject*) clientData );
 502     m_clientObjectList.Append( (wxObject*) NULL );
 503
 504     AppendCommon( item );
 505 }
 506
 507 void wxListBox::Append( const wxString &item, wxClientData *clientData )
 508 {
 509     m_clientObjectList.Append( (wxObject*) clientData );
 510     m_clientDataList.Append( (wxObject*) NULL );
 511
 512     AppendCommon( item );
 513 }
 514
 515 void wxListBox::SetClientData( int n, void* clientData )
 516 {
 517     wxCHECK_RET( m_widget != NULL, _T("invalid combobox") );
 518
 519     wxNode *node = m_clientDataList.Nth( n );
 520     if (!node) return;
 521
 522     node->SetData( (wxObject*) clientData );
 523 }
 524
 525 void* wxListBox::GetClientData( int n )
 526 {
 527     wxCHECK_MSG( m_widget != NULL, NULL, _T("invalid combobox") );
 528
 529     wxNode *node = m_clientDataList.Nth( n );
 530     if (!node) return NULL;
 531
 532     return node->Data();
 533 }
 534
 535 void wxListBox::SetClientObject( int n, wxClientData* clientData )
 536 {
 537     wxCHECK_RET( m_widget != NULL, _T("invalid combobox") );
 538
 539     wxNode *node = m_clientObjectList.Nth( n );
 540     if (!node) return;
 541
 542     wxClientData *cd = (wxClientData*) node->Data();
 543     if (cd) delete cd;
 544
 545     node->SetData( (wxObject*) clientData );
 546 }
 547
 548 wxClientData* wxListBox::GetClientObject( int n )
 549 {
 550     wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, _T("invalid combobox") );
 551
 552     wxNode *node = m_clientObjectList.Nth( n );
 553     if (!node) return (wxClientData*) NULL;
 554
 555     return (wxClientData*) node->Data();
 556 }
 557
 558 void wxListBox::Clear()
 559 {
 560     wxCHECK_RET( m_list != NULL, _T("invalid listbox") );
 561
 562     gtk_list_clear_items( m_list, 0, Number() );
 563
 564     wxNode *node = m_clientObjectList.First();
 565     while (node)
 566     {
 567         wxClientData *cd = (wxClientData*)node->Data();
 568         if (cd) delete cd;
 569         node = node->Next();
 570     }
 571     m_clientObjectList.Clear();
 572
 573     m_clientDataList.Clear();
 574 }
 575
 576 void wxListBox::Delete( int n )
 577 {
 578     wxCHECK_RET( m_list != NULL, _T("invalid listbox") );
 579
 580     GList *child = g_list_nth( m_list->children, n );
 581
 582     wxCHECK_RET( child, _T("wrong listbox index") );
 583
 584     GList *list = g_list_append( (GList*) NULL, child->data );
 585     gtk_list_remove_items( m_list, list );
 586     g_list_free( list );
 587
 588     wxNode *node = m_clientObjectList.Nth( n );
 589     if (node)
 590     {
 591         wxClientData *cd = (wxClientData*)node->Data();
 592         if (cd) delete cd;
 593         m_clientObjectList.DeleteNode( node );
 594     }
 595
 596     node = m_clientDataList.Nth( n );
 597     if (node)
 598     {
 599         m_clientDataList.DeleteNode( node );
 600     }
 601 }
 602
 603 void wxListBox::Deselect( int n )
 604 {
 605     wxCHECK_RET( m_list != NULL, _T("invalid listbox") );
 606
 607     gtk_list_unselect_item( m_list, n );
 608 }
 609
 610 int wxListBox::FindString( const wxString &item ) const
 611 {
 612     wxCHECK_MSG( m_list != NULL, -1, _T("invalid listbox") );
 613
 614     GList *child = m_list->children;
 615     int count = 0;
 616     while (child)
 617     {
 618         GtkBin *bin = GTK_BIN( child->data );
 619         GtkLabel *label = GTK_LABEL( bin->child );
 620
 621         wxString str = GET_REAL_LABEL(label->label);
 622
 623         if (str == item)
 624             return count;
 625
 626         count++;
 627         child = child->next;
 628     }
 629
 630   // it's not an error if the string is not found -> no wxCHECK
 631
 632   return -1;
 633 }
 634
 635 int wxListBox::GetSelection() const
 636 {
 637     wxCHECK_MSG( m_list != NULL, -1, _T("invalid listbox") );
 638
 639     GList *child = m_list->children;
 640     int count = 0;
 641     while (child)
 642     {
 643         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED) return count;
 644         count++;
 645         child = child->next;
 646     }
 647     return -1;
 648 }
 649
 650 int wxListBox::GetSelections( wxArrayInt& aSelections ) const
 651 {
 652     wxCHECK_MSG( m_list != NULL, -1, _T("invalid listbox") );
 653
 654     // get the number of selected items first
 655     GList *child = m_list->children;
 656     int count = 0;
 657     for (child = m_list->children; child != NULL; child = child->next)
 658     {
 659         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
 660             count++;
 661     }
 662
 663     aSelections.Empty();
 664
 665     if (count > 0)
 666     {
 667         // now fill the list
 668         aSelections.Alloc(count); // optimization attempt
 669         int i = 0;
 670         for (child = m_list->children; child != NULL; child = child->next, i++)
 671         {
 672             if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
 673                  aSelections.Add(i);
 674         }
 675     }
 676
 677     return count;
 678 }
 679
 680 wxString wxListBox::GetString( int n ) const
 681 {
 682     wxCHECK_MSG( m_list != NULL, _T(""), _T("invalid listbox") );
 683
 684     GList *child = g_list_nth( m_list->children, n );
 685     if (child)
 686     {
 687         GtkBin *bin = GTK_BIN( child->data );
 688         GtkLabel *label = GTK_LABEL( bin->child );
 689
 690         wxString str = GET_REAL_LABEL(label->label);
 691
 692         return str;
 693     }
 694
 695     wxFAIL_MSG(_T("wrong listbox index"));
 696
 697     return _T("");
 698 }
 699
 700 wxString wxListBox::GetStringSelection() const
 701 {
 702     wxCHECK_MSG( m_list != NULL, _T(""), _T("invalid listbox") );
 703
 704     GList *selection = m_list->selection;
 705     if (selection)
 706     {
 707         GtkBin *bin = GTK_BIN( selection->data );
 708         GtkLabel *label = GTK_LABEL( bin->child );
 709
 710         wxString str = GET_REAL_LABEL(label->label);
 711
 712         return str;
 713     }
 714
 715     wxFAIL_MSG(_T("no listbox selection available"));
 716     return _T("");
 717 }
 718
 719 int wxListBox::Number()
 720 {
 721     wxCHECK_MSG( m_list != NULL, -1, _T("invalid listbox") );
 722
 723     GList *child = m_list->children;
 724     int count = 0;
 725     while (child) { count++; child = child->next; }
 726     return count;
 727 }
 728
 729 bool wxListBox::Selected( int n )
 730 {
 731     wxCHECK_MSG( m_list != NULL, FALSE, _T("invalid listbox") );
 732
 733     GList *target = g_list_nth( m_list->children, n );
 734     if (target)
 735     {
 736         GList *child = m_list->selection;
 737         while (child)
 738         {
 739             if (child->data == target->data) return TRUE;
 740             child = child->next;
 741         }
 742     }
 743     wxFAIL_MSG(_T("wrong listbox index"));
 744     return FALSE;
 745 }
 746
 747 void wxListBox::Set( int WXUNUSED(n), const wxString *WXUNUSED(choices) )
 748 {
 749     wxFAIL_MSG(_T("wxListBox::Set not implemented"));
 750 }
 751
 752 void wxListBox::SetFirstItem( int WXUNUSED(n) )
 753 {
 754     wxFAIL_MSG(_T("wxListBox::SetFirstItem not implemented"));
 755 }
 756
 757 void wxListBox::SetFirstItem( const wxString &WXUNUSED(item) )
 758 {
 759     wxFAIL_MSG(_T("wxListBox::SetFirstItem not implemented"));
 760 }
 761
 762 void wxListBox::SetSelection( int n, bool select )
 763 {
 764     wxCHECK_RET( m_list != NULL, _T("invalid listbox") );
 765
 766     if (select)
 767         gtk_list_select_item( m_list, n );
 768     else
 769         gtk_list_unselect_item( m_list, n );
 770 }
 771
 772 void wxListBox::SetString( int n, const wxString &string )
 773 {
 774     wxCHECK_RET( m_list != NULL, _T("invalid listbox") );
 775
 776     GList *child = g_list_nth( m_list->children, n );
 777     if (child)
 778     {
 779         GtkBin *bin = GTK_BIN( child->data );
 780         GtkLabel *label = GTK_LABEL( bin->child );
 781
 782         wxString str;
 783         if (m_hasCheckBoxes)
 784             str += CHECKBOX_STRING;
 785         str += string;
 786
 787         gtk_label_set( label, str.mbc_str() );
 788     }
 789     else
 790     {
 791         wxFAIL_MSG(_T("wrong listbox index"));
 792     }
 793 }
 794
 795 void wxListBox::SetStringSelection( const wxString &string, bool select )
 796 {
 797     wxCHECK_RET( m_list != NULL, _T("invalid listbox") );
 798
 799     SetSelection( FindString(string), select );
 800 }
 801
 802 int wxListBox::GetIndex( GtkWidget *item ) const
 803 {
 804     if (item)
 805     {
 806         GList *child = m_list->children;
 807         int count = 0;
 808         while (child)
 809         {
 810             if (GTK_WIDGET(child->data) == item) return count;
 811             count++;
 812             child = child->next;
 813         }
 814     }
 815     return -1;
 816 }
 817
 818 #if wxUSE_TOOLTIPS
 819 void wxListBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
 820 {
 821     GList *child = m_list->children;
 822     while (child)
 823     {
 824         gtk_tooltips_set_tip( tips, GTK_WIDGET( child->data ), wxConv_local.cWX2MB(tip), (gchar*) NULL );
 825         child = child->next;
 826     }
 827 }
 828 #endif // wxUSE_TOOLTIPS
 829
 830 #if wxUSE_DRAG_AND_DROP
 831 void wxListBox::SetDropTarget( wxDropTarget *dropTarget )
 832 {
 833     wxCHECK_RET( m_list != NULL, _T("invalid listbox") );
 834
 835 #ifndef NEW_GTK_DND_CODE
 836     if (m_dropTarget)
 837     {
 838         GList *child = m_list->children;
 839         while (child)
 840         {
 841             m_dropTarget->UnregisterWidget( GTK_WIDGET( child->data ) );
 842             child = child->next;
 843         }
 844     }
 845 #endif
 846
 847     wxWindow::SetDropTarget( dropTarget );
 848
 849 #ifndef NEW_GTK_DND_CODE
 850     if (m_dropTarget)
 851     {
 852         GList *child = m_list->children;
 853         while (child)
 854         {
 855             m_dropTarget->RegisterWidget( GTK_WIDGET( child->data ) );
 856             child = child->next;
 857         }
 858     }
 859 #endif
 860 }
 861 #endif
 862
 863 GtkWidget *wxListBox::GetConnectWidget()
 864 {
 865     return GTK_WIDGET(m_list);
 866 }
 867
 868 bool wxListBox::IsOwnGtkWindow( GdkWindow *window )
 869 {
 870     if (wxWindow::IsOwnGtkWindow( window )) return TRUE;
 871
 872     GList *child = m_list->children;
 873     while (child)
 874     {
 875         GtkWidget *bin = GTK_WIDGET( child->data );
 876         if (bin->window == window) return TRUE;
 877         child = child->next;
 878     }
 879
 880     return FALSE;
 881 }
 882
 883 void wxListBox::ApplyWidgetStyle()
 884 {
 885     SetWidgetStyle();
 886
 887     if (m_backgroundColour.Ok())
 888     {
 889         GdkWindow *window = GTK_WIDGET(m_list)->window;
 890         if ( window )
 891         {
 892             m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 893             gdk_window_set_background( window, m_backgroundColour.GetColor() );
 894             gdk_window_clear( window );
 895         }
 896     }
 897
 898     GList *child = m_list->children;
 899     while (child)
 900     {
 901         gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );
 902
 903         GtkBin *bin = GTK_BIN( child->data );
 904         GtkWidget *label = GTK_WIDGET( bin->child );
 905         gtk_widget_set_style( label, m_widgetStyle );
 906
 907         child = child->next;
 908     }
 909 }