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/listbox.h"
  16
  17 #if wxUSE_LISTBOX
  18
  19 #include "wx/dynarray.h"
  20 #include "wx/utils.h"
  21 #include "wx/intl.h"
  22 #include "wx/checklst.h"
  23 #include "wx/settings.h"
  24
  25 #if wxUSE_TOOLTIPS
  26 #include "wx/tooltip.h"
  27 #endif
  28
  29 #include "gdk/gdk.h"
  30 #include "gtk/gtk.h"
  31 #include "gdk/gdkkeysyms.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 #if wxUSE_CHECKLISTBOX
  53
  54 #define CHECKBOX_STRING "[-] "
  55
  56 // checklistboxes have "[±] " prepended to their lables, this macro removes it
  57 // (NB: 4 below is the length of CHECKBOX_STRING above)
  58 //
  59 // the argument to it is a "const char *" pointer
  60 #define GET_REAL_LABEL(label) ((m_hasCheckBoxes)?(label)+4 : (label))
  61
  62 #else // !wxUSE_CHECKLISTBOX
  63
  64 #define GET_REAL_LABEL(label) (label)
  65
  66 #endif // wxUSE_CHECKLISTBOX
  67
  68 //-----------------------------------------------------------------------------
  69 // data
  70 //-----------------------------------------------------------------------------
  71
  72 extern bool       g_blockEventsOnDrag;
  73 extern bool       g_blockEventsOnScroll;
  74 extern wxCursor   g_globalCursor;
  75
  76 static bool       g_hasDoubleClicked = FALSE;
  77
  78 //-----------------------------------------------------------------------------
  79 // "button_release_event"
  80 //-----------------------------------------------------------------------------
  81
  82 /* we would normally emit a wxEVT_COMMAND_LISTBOX_DOUBLECLICKED event once
  83    a GDK_2BUTTON_PRESS occurs, but this has the particular problem of the
  84    listbox keeping the focus until it receives a GDK_BUTTON_RELEASE event.
  85    this can lead to race conditions so that we emit the dclick event
  86    after the GDK_BUTTON_RELEASE event after the GDK_2BUTTON_PRESS event */
  87
  88 static gint
  89 gtk_listbox_button_release_callback( GtkWidget * WXUNUSED(widget),
  90                                      GdkEventButton * WXUNUSED(gdk_event),
  91                                      wxListBox *listbox )
  92 {
  93     if (g_isIdle) wxapp_install_idle_handler();
  94
  95     if (g_blockEventsOnDrag) return FALSE;
  96     if (g_blockEventsOnScroll) return FALSE;
  97
  98     if (!listbox->m_hasVMT) return FALSE;
  99
 100     if (!g_hasDoubleClicked) return FALSE;
 101
 102     wxCommandEvent event( wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, listbox->GetId() );
 103     event.SetEventObject( listbox );
 104
 105     wxArrayInt aSelections;
 106     int n, count = listbox->GetSelections(aSelections);
 107     if ( count > 0 )
 108     {
 109         n = aSelections[0];
 110         if ( listbox->HasClientObjectData() )
 111             event.SetClientObject( listbox->GetClientObject(n) );
 112         else if ( listbox->HasClientUntypedData() )
 113             event.SetClientData( listbox->GetClientData(n) );
 114         event.SetString( listbox->GetString(n) );
 115     }
 116     else
 117     {
 118         n = -1;
 119     }
 120
 121     event.m_commandInt = n;
 122
 123     listbox->GetEventHandler()->ProcessEvent( event );
 124
 125     return FALSE;
 126 }
 127
 128 //-----------------------------------------------------------------------------
 129 // "button_press_event"
 130 //-----------------------------------------------------------------------------
 131
 132 static gint
 133 gtk_listbox_button_press_callback( GtkWidget *widget,
 134                                    GdkEventButton *gdk_event,
 135                                    wxListBox *listbox )
 136 {
 137     if (g_isIdle) wxapp_install_idle_handler();
 138
 139     if (g_blockEventsOnDrag) return FALSE;
 140     if (g_blockEventsOnScroll) return FALSE;
 141
 142     if (!listbox->m_hasVMT) return FALSE;
 143
 144     int sel = listbox->GtkGetIndex( widget );
 145
 146 #if wxUSE_CHECKLISTBOX
 147     if ((listbox->m_hasCheckBoxes) && (gdk_event->x < 15) && (gdk_event->type != GDK_2BUTTON_PRESS))
 148     {
 149         wxCheckListBox *clb = (wxCheckListBox *)listbox;
 150
 151         clb->Check( sel, !clb->IsChecked(sel) );
 152
 153         wxCommandEvent event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 154         event.SetEventObject( listbox );
 155         event.SetInt( sel );
 156         listbox->GetEventHandler()->ProcessEvent( event );
 157     }
 158 #endif // wxUSE_CHECKLISTBOX
 159
 160     /* emit wxEVT_COMMAND_LISTBOX_DOUBLECLICKED later */
 161     g_hasDoubleClicked = (gdk_event->type == GDK_2BUTTON_PRESS);
 162
 163     return FALSE;
 164 }
 165
 166 //-----------------------------------------------------------------------------
 167 // "key_press_event"
 168 //-----------------------------------------------------------------------------
 169
 170 static gint
 171 gtk_listbox_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxListBox *listbox )
 172 {
 173     if (g_isIdle)
 174         wxapp_install_idle_handler();
 175
 176     if (g_blockEventsOnDrag)
 177         return FALSE;
 178
 179     bool ret = FALSE;
 180
 181     if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
 182     {
 183         wxNavigationKeyEvent new_event;
 184         /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 185         new_event.SetDirection( (gdk_event->keyval == GDK_Tab) );
 186         /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 187         new_event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) );
 188         new_event.SetCurrentFocus( listbox );
 189         ret = listbox->GetEventHandler()->ProcessEvent( new_event );
 190     }
 191
 192 #if wxUSE_CHECKLISTBOX
 193     if ((gdk_event->keyval != ' ') && (listbox->m_hasCheckBoxes) && (!ret))
 194     {
 195         int sel = listbox->GtkGetIndex( widget );
 196
 197         wxCheckListBox *clb = (wxCheckListBox *)listbox;
 198
 199         clb->Check( sel, !clb->IsChecked(sel) );
 200
 201         wxCommandEvent new_event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 202         new_event.SetEventObject( listbox );
 203         new_event.SetInt( sel );
 204         ret = listbox->GetEventHandler()->ProcessEvent( new_event );
 205     }
 206 #endif // wxUSE_CHECKLISTBOX
 207
 208     if (ret)
 209     {
 210         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
 211         return TRUE;
 212     }
 213
 214     return FALSE;
 215 }
 216
 217 //-----------------------------------------------------------------------------
 218 // "select" and "deselect"
 219 //-----------------------------------------------------------------------------
 220
 221 static void gtk_listitem_select_callback( GtkWidget *WXUNUSED(widget), wxListBox *listbox );
 222
 223 static void gtk_listitem_deselect_callback( GtkWidget *widget, wxListBox *listbox )
 224 {
 225     gtk_listitem_select_callback( widget, listbox );
 226 }
 227
 228 static void gtk_listitem_select_callback( GtkWidget *WXUNUSED(widget), wxListBox *listbox )
 229 {
 230     if (g_isIdle) wxapp_install_idle_handler();
 231
 232     if (!listbox->m_hasVMT) return;
 233     if (g_blockEventsOnDrag) return;
 234
 235     wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, listbox->GetId() );
 236     event.SetEventObject( listbox );
 237
 238     wxArrayInt aSelections;
 239     int n, count = listbox->GetSelections(aSelections);
 240     if ( count > 0 )
 241     {
 242         n = aSelections[0];
 243         if ( listbox->HasClientObjectData() )
 244             event.SetClientObject( listbox->GetClientObject(n) );
 245         else if ( listbox->HasClientUntypedData() )
 246             event.SetClientData( listbox->GetClientData(n) );
 247         event.SetString( listbox->GetString(n) );
 248     }
 249     else
 250     {
 251         n = -1;
 252     }
 253
 254     event.m_commandInt = n;
 255
 256     listbox->GetEventHandler()->ProcessEvent( event );
 257 }
 258
 259 //-----------------------------------------------------------------------------
 260 // wxListBox
 261 //-----------------------------------------------------------------------------
 262
 263 IMPLEMENT_DYNAMIC_CLASS(wxListBox,wxControl)
 264
 265 // ----------------------------------------------------------------------------
 266 // construction
 267 // ----------------------------------------------------------------------------
 268
 269 wxListBox::wxListBox()
 270 {
 271     m_list = (GtkList *) NULL;
 272 #if wxUSE_CHECKLISTBOX
 273     m_hasCheckBoxes = FALSE;
 274 #endif // wxUSE_CHECKLISTBOX
 275 }
 276
 277 bool wxListBox::Create( wxWindow *parent, wxWindowID id,
 278                         const wxPoint &pos, const wxSize &size,
 279                         int n, const wxString choices[],
 280                         long style, const wxValidator& validator,
 281                         const wxString &name )
 282 {
 283     m_needParent = TRUE;
 284     m_acceptsFocus = TRUE;
 285
 286     if (!PreCreation( parent, pos, size ) ||
 287         !CreateBase( parent, id, pos, size, style, validator, name ))
 288     {
 289         wxFAIL_MSG( wxT("wxListBox creation failed") );
 290         return FALSE;
 291     }
 292
 293     m_widget = gtk_scrolled_window_new( (GtkAdjustment*) NULL, (GtkAdjustment*) NULL );
 294     if (style & wxLB_ALWAYS_SB)
 295     {
 296       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 297         GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS );
 298     }
 299     else
 300     {
 301       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 302         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 303     }
 304
 305     m_list = GTK_LIST( gtk_list_new() );
 306
 307     GtkSelectionMode mode = GTK_SELECTION_BROWSE;
 308     if (style & wxLB_MULTIPLE)
 309         mode = GTK_SELECTION_MULTIPLE;
 310     else if (style & wxLB_EXTENDED)
 311         mode = GTK_SELECTION_EXTENDED;
 312
 313     gtk_list_set_selection_mode( GTK_LIST(m_list), mode );
 314
 315 #ifdef NEW_GTK_SCROLL_CODE
 316     gtk_scrolled_window_add_with_viewport( GTK_SCROLLED_WINDOW(m_widget), GTK_WIDGET(m_list) );
 317 #else
 318     gtk_container_add( GTK_CONTAINER(m_widget), GTK_WIDGET(m_list) );
 319 #endif
 320
 321     /* make list scroll when moving the focus down using cursor keys */
 322     gtk_container_set_focus_vadjustment(
 323         GTK_CONTAINER(m_list),
 324         gtk_scrolled_window_get_vadjustment(
 325             GTK_SCROLLED_WINDOW(m_widget)));
 326
 327     gtk_widget_show( GTK_WIDGET(m_list) );
 328
 329     wxSize newSize = size;
 330     if (newSize.x == -1)
 331         newSize.x = 100;
 332     if (newSize.y == -1)
 333         newSize.y = 110;
 334     SetSize( newSize.x, newSize.y );
 335
 336     if ( style & wxLB_SORT )
 337     {
 338         // this will change DoAppend() behaviour
 339         m_strings = new wxSortedArrayString;
 340     }
 341     else
 342     {
 343         m_strings = (wxSortedArrayString *)NULL;
 344     }
 345
 346     for (int i = 0; i < n; i++)
 347     {
 348         // add one by one
 349         DoAppend(choices[i]);
 350     }
 351
 352     m_parent->DoAddChild( this );
 353
 354     PostCreation();
 355
 356     SetBackgroundColour( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_WINDOW ) );
 357     SetForegroundColour( parent->GetForegroundColour() );
 358     SetFont( parent->GetFont() );
 359
 360     Show( TRUE );
 361
 362     return TRUE;
 363 }
 364
 365 wxListBox::~wxListBox()
 366 {
 367     Clear();
 368 }
 369
 370 void wxListBox::DoInsertItems(const wxArrayString& items, int pos)
 371 {
 372     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 373
 374     // VZ: notice that InsertItems knows nothing about sorting, so calling it
 375     //     from outside (and not from our own Append) is likely to break
 376     //     everything
 377
 378     // code elsewhere supposes we have as many items in m_clientList as items
 379     // in the listbox
 380     wxASSERT_MSG( m_clientList.GetCount() == (size_t)GetCount(),
 381                   wxT("bug in client data management") );
 382
 383     GList *children = m_list->children;
 384     int length = g_list_length(children);
 385
 386     wxCHECK_RET( pos <= length, wxT("invalid index in wxListBox::InsertItems") );
 387
 388     size_t nItems = items.GetCount();
 389
 390     if (pos == length)
 391     {
 392         for ( size_t n = 0; n < nItems; n++ )
 393         {
 394             GtkAddItem( items[n] );
 395
 396             m_clientList.Append((wxObject *)NULL);
 397         }
 398     }
 399     else
 400     {
 401         wxNode *node = m_clientList.Nth( pos );
 402         for ( size_t n = 0; n < nItems; n++ )
 403         {
 404             GtkAddItem( items[n], pos+n );
 405
 406             m_clientList.Insert( node, (wxObject *)NULL );
 407         }
 408     }
 409
 410     wxASSERT_MSG( m_clientList.GetCount() == (size_t)GetCount(),
 411                       wxT("bug in client data management") );
 412 }
 413
 414 int wxListBox::DoAppend( const wxString& item )
 415 {
 416     if (m_strings)
 417     {
 418         // need to determine the index
 419         int index = m_strings->Add( item );
 420
 421         // only if not at the end anyway
 422         if (index != GetCount())
 423         {
 424            GtkAddItem( item, index );
 425
 426            wxNode *node = m_clientList.Nth( index );
 427            m_clientList.Insert( node, (wxObject *)NULL );
 428
 429            return index;
 430         }
 431     }
 432
 433     GtkAddItem(item);
 434
 435     m_clientList.Append((wxObject *)NULL);
 436
 437     return GetCount() - 1;
 438 }
 439
 440 void wxListBox::GtkAddItem( const wxString &item, int pos )
 441 {
 442     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 443
 444     GtkWidget *list_item;
 445
 446     wxString label(item);
 447 #if wxUSE_CHECKLISTBOX
 448     if (m_hasCheckBoxes)
 449     {
 450         label.Prepend(CHECKBOX_STRING);
 451     }
 452 #endif // wxUSE_CHECKLISTBOX
 453
 454     list_item = gtk_list_item_new_with_label( label.mbc_str() );
 455
 456     GList *gitem_list = g_list_alloc ();
 457     gitem_list->data = list_item;
 458
 459     if (pos == -1)
 460         gtk_list_append_items( GTK_LIST (m_list), gitem_list );
 461     else
 462         gtk_list_insert_items( GTK_LIST (m_list), gitem_list, pos );
 463
 464     gtk_signal_connect( GTK_OBJECT(list_item), "select",
 465       GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 466
 467     if (HasFlag(wxLB_MULTIPLE))
 468         gtk_signal_connect( GTK_OBJECT(list_item), "deselect",
 469           GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 470
 471     gtk_signal_connect( GTK_OBJECT(list_item),
 472                         "button_press_event",
 473                         (GtkSignalFunc)gtk_listbox_button_press_callback,
 474                         (gpointer) this );
 475
 476     gtk_signal_connect_after( GTK_OBJECT(list_item),
 477                         "button_release_event",
 478                         (GtkSignalFunc)gtk_listbox_button_release_callback,
 479                         (gpointer) this );
 480
 481     gtk_signal_connect( GTK_OBJECT(list_item),
 482                            "key_press_event",
 483                            (GtkSignalFunc)gtk_listbox_key_press_callback,
 484                            (gpointer)this );
 485
 486     gtk_widget_show( list_item );
 487
 488     ConnectWidget( list_item );
 489
 490     if (GTK_WIDGET_REALIZED(m_widget))
 491     {
 492         gtk_widget_realize( list_item );
 493         gtk_widget_realize( GTK_BIN(list_item)->child );
 494
 495         // Apply current widget style to the new list_item
 496         if (m_widgetStyle)
 497         {
 498             gtk_widget_set_style( GTK_WIDGET( list_item ), m_widgetStyle );
 499             GtkBin *bin = GTK_BIN( list_item );
 500             GtkWidget *label = GTK_WIDGET( bin->child );
 501             gtk_widget_set_style( label, m_widgetStyle );
 502         }
 503
 504 #if wxUSE_TOOLTIPS
 505         if (m_tooltip) m_tooltip->Apply( this );
 506 #endif
 507     }
 508 }
 509
 510 void wxListBox::DoSetItems( const wxArrayString& items,
 511                             void **clientData)
 512 {
 513     Clear();
 514
 515     DoInsertItems(items, 0);
 516
 517     if ( clientData )
 518     {
 519         size_t count = items.GetCount();
 520         for ( size_t n = 0; n < count; n++ )
 521         {
 522             SetClientData(n, clientData[n]);
 523         }
 524     }
 525 }
 526
 527 // ----------------------------------------------------------------------------
 528 // client data
 529 // ----------------------------------------------------------------------------
 530
 531 void wxListBox::DoSetItemClientData( int n, void* clientData )
 532 {
 533     wxCHECK_RET( m_widget != NULL, wxT("invalid listbox control") );
 534
 535     wxNode *node = m_clientList.Nth( n );
 536     wxCHECK_RET( node, wxT("invalid index in wxListBox::DoSetItemClientData") );
 537
 538     node->SetData( (wxObject*) clientData );
 539 }
 540
 541 void* wxListBox::DoGetItemClientData( int n ) const
 542 {
 543     wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid listbox control") );
 544
 545     wxNode *node = m_clientList.Nth( n );
 546     wxCHECK_MSG( node, NULL, wxT("invalid index in wxListBox::DoGetItemClientData") );
 547
 548     return node->Data();
 549 }
 550
 551 void wxListBox::DoSetItemClientObject( int n, wxClientData* clientData )
 552 {
 553     wxCHECK_RET( m_widget != NULL, wxT("invalid listbox control") );
 554
 555     wxNode *node = m_clientList.Nth( n );
 556     wxCHECK_RET( node, wxT("invalid index in wxListBox::DoSetItemClientObject") );
 557
 558     wxClientData *cd = (wxClientData*) node->Data();
 559     delete cd;
 560
 561     node->SetData( (wxObject*) clientData );
 562 }
 563
 564 wxClientData* wxListBox::DoGetItemClientObject( int n ) const
 565 {
 566     wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, wxT("invalid listbox control") );
 567
 568     wxNode *node = m_clientList.Nth( n );
 569     wxCHECK_MSG( node, (wxClientData *)NULL,
 570                  wxT("invalid index in wxListBox::DoGetItemClientObject") );
 571
 572     return (wxClientData*) node->Data();
 573 }
 574
 575 void wxListBox::Clear()
 576 {
 577     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 578
 579     gtk_list_clear_items( m_list, 0, Number() );
 580
 581     if ( HasClientObjectData() )
 582     {
 583         // destroy the data (due to Robert's idea of using wxList<wxObject>
 584         // and not wxList<wxClientData> we can't just say
 585         // m_clientList.DeleteContents(TRUE) - this would crash!
 586         wxNode *node = m_clientList.First();
 587         while ( node )
 588         {
 589             delete (wxClientData *)node->Data();
 590             node = node->Next();
 591         }
 592     }
 593     m_clientList.Clear();
 594
 595     if ( m_strings )
 596         m_strings->Clear();
 597 }
 598
 599 void wxListBox::Delete( int n )
 600 {
 601     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 602
 603     GList *child = g_list_nth( m_list->children, n );
 604
 605     wxCHECK_RET( child, wxT("wrong listbox index") );
 606
 607     GList *list = g_list_append( (GList*) NULL, child->data );
 608     gtk_list_remove_items( m_list, list );
 609     g_list_free( list );
 610
 611     wxNode *node = m_clientList.Nth( n );
 612     if ( node )
 613     {
 614         if ( m_clientDataItemsType == ClientData_Object )
 615         {
 616             wxClientData *cd = (wxClientData*)node->Data();
 617             delete cd;
 618         }
 619
 620         m_clientList.DeleteNode( node );
 621     }
 622
 623     if ( m_strings )
 624         m_strings->Remove(n);
 625 }
 626
 627 // ----------------------------------------------------------------------------
 628 // string list access
 629 // ----------------------------------------------------------------------------
 630
 631 void wxListBox::SetString( int n, const wxString &string )
 632 {
 633     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 634
 635     GList *child = g_list_nth( m_list->children, n );
 636     if (child)
 637     {
 638         GtkBin *bin = GTK_BIN( child->data );
 639         GtkLabel *label = GTK_LABEL( bin->child );
 640
 641         wxString str;
 642 #if wxUSE_CHECKLISTBOX
 643         if (m_hasCheckBoxes)
 644             str += CHECKBOX_STRING;
 645 #endif // wxUSE_CHECKLISTBOX
 646         str += string;
 647
 648         gtk_label_set( label, str.mbc_str() );
 649     }
 650     else
 651     {
 652         wxFAIL_MSG(wxT("wrong listbox index"));
 653     }
 654 }
 655
 656 wxString wxListBox::GetString( int n ) const
 657 {
 658     wxCHECK_MSG( m_list != NULL, wxT(""), wxT("invalid listbox") );
 659
 660     GList *child = g_list_nth( m_list->children, n );
 661     if (child)
 662     {
 663         GtkBin *bin = GTK_BIN( child->data );
 664         GtkLabel *label = GTK_LABEL( bin->child );
 665
 666         wxString str = wxString(GET_REAL_LABEL(label->label),*wxConvCurrent);
 667
 668         return str;
 669     }
 670
 671     wxFAIL_MSG(wxT("wrong listbox index"));
 672
 673     return wxT("");
 674 }
 675
 676 int wxListBox::GetCount() const
 677 {
 678     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 679
 680     GList *children = m_list->children;
 681     return g_list_length(children);
 682 }
 683
 684 int wxListBox::FindString( const wxString &item ) const
 685 {
 686     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 687
 688     GList *child = m_list->children;
 689     int count = 0;
 690     while (child)
 691     {
 692         GtkBin *bin = GTK_BIN( child->data );
 693         GtkLabel *label = GTK_LABEL( bin->child );
 694
 695         wxString str = wxString(GET_REAL_LABEL(label->label),*wxConvCurrent);
 696
 697         if (str == item)
 698             return count;
 699
 700         count++;
 701         child = child->next;
 702     }
 703
 704     // it's not an error if the string is not found -> no wxCHECK
 705
 706     return wxNOT_FOUND;
 707 }
 708
 709 // ----------------------------------------------------------------------------
 710 // selection
 711 // ----------------------------------------------------------------------------
 712
 713 int wxListBox::GetSelection() const
 714 {
 715     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 716
 717     GList *child = m_list->children;
 718     int count = 0;
 719     while (child)
 720     {
 721         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED) return count;
 722         count++;
 723         child = child->next;
 724     }
 725     return -1;
 726 }
 727
 728 int wxListBox::GetSelections( wxArrayInt& aSelections ) const
 729 {
 730     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 731
 732     // get the number of selected items first
 733     GList *child = m_list->children;
 734     int count = 0;
 735     for (child = m_list->children; child != NULL; child = child->next)
 736     {
 737         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
 738             count++;
 739     }
 740
 741     aSelections.Empty();
 742
 743     if (count > 0)
 744     {
 745         // now fill the list
 746         aSelections.Alloc(count); // optimization attempt
 747         int i = 0;
 748         for (child = m_list->children; child != NULL; child = child->next, i++)
 749         {
 750             if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
 751                  aSelections.Add(i);
 752         }
 753     }
 754
 755     return count;
 756 }
 757
 758 bool wxListBox::IsSelected( int n ) const
 759 {
 760     wxCHECK_MSG( m_list != NULL, FALSE, wxT("invalid listbox") );
 761
 762     GList *target = g_list_nth( m_list->children, n );
 763     if (target)
 764     {
 765         GList *child = m_list->selection;
 766         while (child)
 767         {
 768             if (child->data == target->data) return TRUE;
 769             child = child->next;
 770         }
 771     }
 772
 773     wxFAIL_MSG(wxT("wrong listbox index"));
 774
 775     return FALSE;
 776 }
 777
 778 void wxListBox::SetSelection( int n, bool select )
 779 {
 780     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 781
 782     GtkDisableEvents();
 783
 784     if (select)
 785         gtk_list_select_item( m_list, n );
 786     else
 787         gtk_list_unselect_item( m_list, n );
 788
 789     GtkEnableEvents();
 790 }
 791
 792 void wxListBox::DoSetFirstItem( int WXUNUSED(n) )
 793 {
 794     wxFAIL_MSG(wxT("wxListBox::SetFirstItem not implemented"));
 795 }
 796
 797 // ----------------------------------------------------------------------------
 798 // helpers
 799 // ----------------------------------------------------------------------------
 800
 801 int wxListBox::GtkGetIndex( GtkWidget *item ) const
 802 {
 803     if (item)
 804     {
 805         GList *child = m_list->children;
 806         int count = 0;
 807         while (child)
 808         {
 809             if (GTK_WIDGET(child->data) == item) return count;
 810             count++;
 811             child = child->next;
 812         }
 813     }
 814     return -1;
 815 }
 816
 817 #if wxUSE_TOOLTIPS
 818 void wxListBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
 819 {
 820     GList *child = m_list->children;
 821     while (child)
 822     {
 823         gtk_tooltips_set_tip( tips, GTK_WIDGET( child->data ), wxConvCurrent->cWX2MB(tip), (gchar*) NULL );
 824         child = child->next;
 825     }
 826 }
 827 #endif // wxUSE_TOOLTIPS
 828
 829 void wxListBox::GtkDisableEvents()
 830 {
 831     GList *child = m_list->children;
 832     while (child)
 833     {
 834         gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
 835           GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 836
 837         if (HasFlag(wxLB_MULTIPLE))
 838             gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
 839               GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 840
 841         child = child->next;
 842     }
 843 }
 844
 845 void wxListBox::GtkEnableEvents()
 846 {
 847     GList *child = m_list->children;
 848     while (child)
 849     {
 850         gtk_signal_connect( GTK_OBJECT(child->data), "select",
 851           GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 852
 853         if (HasFlag(wxLB_MULTIPLE))
 854             gtk_signal_connect( GTK_OBJECT(child->data), "deselect",
 855               GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 856
 857         child = child->next;
 858     }
 859 }
 860
 861 GtkWidget *wxListBox::GetConnectWidget()
 862 {
 863     return GTK_WIDGET(m_list);
 864 }
 865
 866 bool wxListBox::IsOwnGtkWindow( GdkWindow *window )
 867 {
 868     if (wxWindow::IsOwnGtkWindow( window )) return TRUE;
 869
 870     GList *child = m_list->children;
 871     while (child)
 872     {
 873         GtkWidget *bin = GTK_WIDGET( child->data );
 874         if (bin->window == window) return TRUE;
 875         child = child->next;
 876     }
 877
 878     return FALSE;
 879 }
 880
 881 void wxListBox::ApplyWidgetStyle()
 882 {
 883     SetWidgetStyle();
 884
 885     if (m_backgroundColour.Ok())
 886     {
 887         GdkWindow *window = GTK_WIDGET(m_list)->window;
 888         if ( window )
 889         {
 890             m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 891             gdk_window_set_background( window, m_backgroundColour.GetColor() );
 892             gdk_window_clear( window );
 893         }
 894     }
 895
 896     GList *child = m_list->children;
 897     while (child)
 898     {
 899         gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );
 900
 901         GtkBin *bin = GTK_BIN( child->data );
 902         GtkWidget *label = GTK_WIDGET( bin->child );
 903         gtk_widget_set_style( label, m_widgetStyle );
 904
 905         child = child->next;
 906     }
 907 }
 908
 909 void wxListBox::OnInternalIdle()
 910 {
 911     wxCursor cursor = m_cursor;
 912     if (g_globalCursor.Ok()) cursor = g_globalCursor;
 913
 914     if (GTK_WIDGET(m_list)->window && cursor.Ok())
 915     {
 916         /* I now set the cursor the anew in every OnInternalIdle call
 917            as setting the cursor in a parent window also effects the
 918            windows above so that checking for the current cursor is
 919            not possible. */
 920
 921         gdk_window_set_cursor( GTK_WIDGET(m_list)->window, cursor.GetCursor() );
 922
 923         GList *child = m_list->children;
 924         while (child)
 925         {
 926             GtkBin *bin = GTK_BIN( child->data );
 927             GtkWidget *label = GTK_WIDGET( bin->child );
 928
 929             if (!label->window)
 930                 break;
 931             else
 932                 gdk_window_set_cursor( label->window, cursor.GetCursor() );
 933
 934             child = child->next;
 935         }
 936     }
 937
 938     UpdateWindowUI();
 939 }
 940
 941 #endif