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 // checklistboxes have "[±] " prepended to their lables, this macro removes it
  55 // (NB: 4 below is the length of wxCHECKLBOX_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 #else // !wxUSE_CHECKLISTBOX
  61
  62 #define GET_REAL_LABEL(label) (label)
  63
  64 #endif // wxUSE_CHECKLISTBOX
  65
  66 //-----------------------------------------------------------------------------
  67 // data
  68 //-----------------------------------------------------------------------------
  69
  70 extern bool       g_blockEventsOnDrag;
  71 extern bool       g_blockEventsOnScroll;
  72 extern wxCursor   g_globalCursor;
  73
  74 static bool       g_hasDoubleClicked = FALSE;
  75
  76 //-----------------------------------------------------------------------------
  77 // idle callback for SetFirstItem
  78 //-----------------------------------------------------------------------------
  79
  80 struct wxlistbox_idle_struct
  81 {
  82     wxListBox   *m_listbox;
  83     int          m_item;
  84     gint         m_tag;
  85 };
  86
  87 static gint wxlistbox_idle_callback( gpointer gdata )
  88 {
  89     wxlistbox_idle_struct* data = (wxlistbox_idle_struct*) gdata;
  90     gdk_threads_enter();
  91
  92     gtk_idle_remove( data->m_tag );
  93
  94     data->m_listbox->SetFirstItem( data->m_item );
  95
  96     delete data;
  97
  98     gdk_threads_leave();
  99
 100     return TRUE;
 101 }
 102
 103 //-----------------------------------------------------------------------------
 104 // "button_release_event"
 105 //-----------------------------------------------------------------------------
 106
 107 /* we would normally emit a wxEVT_COMMAND_LISTBOX_DOUBLECLICKED event once
 108    a GDK_2BUTTON_PRESS occurs, but this has the particular problem of the
 109    listbox keeping the focus until it receives a GDK_BUTTON_RELEASE event.
 110    this can lead to race conditions so that we emit the dclick event
 111    after the GDK_BUTTON_RELEASE event after the GDK_2BUTTON_PRESS event */
 112
 113 static gint
 114 gtk_listbox_button_release_callback( GtkWidget * WXUNUSED(widget),
 115                                      GdkEventButton * WXUNUSED(gdk_event),
 116                                      wxListBox *listbox )
 117 {
 118     if (g_isIdle) wxapp_install_idle_handler();
 119
 120     if (g_blockEventsOnDrag) return FALSE;
 121     if (g_blockEventsOnScroll) return FALSE;
 122
 123     if (!listbox->m_hasVMT) return FALSE;
 124
 125     if (!g_hasDoubleClicked) return FALSE;
 126
 127     wxCommandEvent event( wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, listbox->GetId() );
 128     event.SetEventObject( listbox );
 129
 130     wxArrayInt aSelections;
 131     int n, count = listbox->GetSelections(aSelections);
 132     if ( count > 0 )
 133     {
 134         n = aSelections[0];
 135         if ( listbox->HasClientObjectData() )
 136             event.SetClientObject( listbox->GetClientObject(n) );
 137         else if ( listbox->HasClientUntypedData() )
 138             event.SetClientData( listbox->GetClientData(n) );
 139         event.SetString( listbox->GetString(n) );
 140     }
 141     else
 142     {
 143         n = -1;
 144     }
 145
 146     event.m_commandInt = n;
 147
 148     listbox->GetEventHandler()->ProcessEvent( event );
 149
 150     return FALSE;
 151 }
 152
 153 //-----------------------------------------------------------------------------
 154 // "button_press_event"
 155 //-----------------------------------------------------------------------------
 156
 157 static gint
 158 gtk_listbox_button_press_callback( GtkWidget *widget,
 159                                    GdkEventButton *gdk_event,
 160                                    wxListBox *listbox )
 161 {
 162     if (g_isIdle) wxapp_install_idle_handler();
 163
 164     if (g_blockEventsOnDrag) return FALSE;
 165     if (g_blockEventsOnScroll) return FALSE;
 166
 167     if (!listbox->m_hasVMT) return FALSE;
 168
 169     int sel = listbox->GtkGetIndex( widget );
 170
 171 #if wxUSE_CHECKLISTBOX
 172     if ((listbox->m_hasCheckBoxes) && (gdk_event->x < 15) && (gdk_event->type != GDK_2BUTTON_PRESS))
 173     {
 174         wxCheckListBox *clb = (wxCheckListBox *)listbox;
 175
 176         clb->Check( sel, !clb->IsChecked(sel) );
 177
 178         wxCommandEvent event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 179         event.SetEventObject( listbox );
 180         event.SetInt( sel );
 181         listbox->GetEventHandler()->ProcessEvent( event );
 182     }
 183 #endif // wxUSE_CHECKLISTBOX
 184
 185     /* emit wxEVT_COMMAND_LISTBOX_DOUBLECLICKED later */
 186     g_hasDoubleClicked = (gdk_event->type == GDK_2BUTTON_PRESS);
 187
 188     return FALSE;
 189 }
 190
 191 //-----------------------------------------------------------------------------
 192 // "key_press_event"
 193 //-----------------------------------------------------------------------------
 194
 195 static gint
 196 gtk_listbox_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxListBox *listbox )
 197 {
 198     if (g_isIdle)
 199         wxapp_install_idle_handler();
 200
 201     if (g_blockEventsOnDrag)
 202         return FALSE;
 203
 204     bool ret = FALSE;
 205
 206     if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
 207     {
 208         wxNavigationKeyEvent new_event;
 209         /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 210         new_event.SetDirection( (gdk_event->keyval == GDK_Tab) );
 211         /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 212         new_event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) );
 213         new_event.SetCurrentFocus( listbox );
 214         ret = listbox->GetEventHandler()->ProcessEvent( new_event );
 215     }
 216
 217     if ((gdk_event->keyval == GDK_Return) && (!ret))
 218     {
 219         // eat return in all modes
 220         ret = TRUE;
 221     }
 222
 223 #if wxUSE_CHECKLISTBOX
 224     if ((gdk_event->keyval == ' ') && (listbox->m_hasCheckBoxes) && (!ret))
 225     {
 226         int sel = listbox->GtkGetIndex( widget );
 227
 228         wxCheckListBox *clb = (wxCheckListBox *)listbox;
 229
 230         clb->Check( sel, !clb->IsChecked(sel) );
 231
 232         wxCommandEvent new_event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 233         new_event.SetEventObject( listbox );
 234         new_event.SetInt( sel );
 235         ret = listbox->GetEventHandler()->ProcessEvent( new_event );
 236     }
 237 #endif // wxUSE_CHECKLISTBOX
 238
 239     if (ret)
 240     {
 241         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
 242         return TRUE;
 243     }
 244
 245     return FALSE;
 246 }
 247
 248 //-----------------------------------------------------------------------------
 249 // "select" and "deselect"
 250 //-----------------------------------------------------------------------------
 251
 252 static void gtk_listitem_select_cb( GtkWidget *widget, wxListBox *listbox, bool is_selection );
 253
 254 static void gtk_listitem_select_callback( GtkWidget *widget, wxListBox *listbox )
 255 {
 256     gtk_listitem_select_cb( widget, listbox, TRUE );
 257 }
 258
 259 static void gtk_listitem_deselect_callback( GtkWidget *widget, wxListBox *listbox )
 260 {
 261     gtk_listitem_select_cb( widget, listbox, FALSE );
 262 }
 263
 264 static void gtk_listitem_select_cb( GtkWidget *WXUNUSED(widget), wxListBox *listbox, bool is_selection )
 265 {
 266     if (g_isIdle) wxapp_install_idle_handler();
 267
 268     if (!listbox->m_hasVMT) return;
 269     if (g_blockEventsOnDrag) return;
 270
 271     wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, listbox->GetId() );
 272     event.SetEventObject( listbox );
 273     event.SetExtraLong( (long) is_selection );
 274
 275     wxArrayInt aSelections;
 276     int n, count = listbox->GetSelections(aSelections);
 277     if ( count > 0 )
 278     {
 279         n = aSelections[0];
 280         if ( listbox->HasClientObjectData() )
 281             event.SetClientObject( listbox->GetClientObject(n) );
 282         else if ( listbox->HasClientUntypedData() )
 283             event.SetClientData( listbox->GetClientData(n) );
 284         event.SetString( listbox->GetString(n) );
 285     }
 286     else
 287     {
 288         n = -1;
 289     }
 290
 291     event.m_commandInt = n;
 292
 293     listbox->GetEventHandler()->AddPendingEvent( event );
 294 //    listbox->GetEventHandler()->ProcessEvent( event );
 295 }
 296
 297 //-----------------------------------------------------------------------------
 298 // wxListBox
 299 //-----------------------------------------------------------------------------
 300
 301 IMPLEMENT_DYNAMIC_CLASS(wxListBox,wxControl)
 302
 303 // ----------------------------------------------------------------------------
 304 // construction
 305 // ----------------------------------------------------------------------------
 306
 307 wxListBox::wxListBox()
 308 {
 309     m_list = (GtkList *) NULL;
 310 #if wxUSE_CHECKLISTBOX
 311     m_hasCheckBoxes = FALSE;
 312 #endif // wxUSE_CHECKLISTBOX
 313 }
 314
 315 bool wxListBox::Create( wxWindow *parent, wxWindowID id,
 316                         const wxPoint &pos, const wxSize &size,
 317                         int n, const wxString choices[],
 318                         long style, const wxValidator& validator,
 319                         const wxString &name )
 320 {
 321     m_needParent = TRUE;
 322     m_acceptsFocus = TRUE;
 323
 324     if (!PreCreation( parent, pos, size ) ||
 325         !CreateBase( parent, id, pos, size, style, validator, name ))
 326     {
 327         wxFAIL_MSG( wxT("wxListBox creation failed") );
 328         return FALSE;
 329     }
 330
 331     m_widget = gtk_scrolled_window_new( (GtkAdjustment*) NULL, (GtkAdjustment*) NULL );
 332     if (style & wxLB_ALWAYS_SB)
 333     {
 334       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 335         GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS );
 336     }
 337     else
 338     {
 339       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 340         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 341     }
 342
 343     m_list = GTK_LIST( gtk_list_new() );
 344
 345     GtkSelectionMode mode;
 346     if (style & wxLB_MULTIPLE)
 347     {
 348         mode = GTK_SELECTION_MULTIPLE;
 349     }
 350     else if (style & wxLB_EXTENDED)
 351     {
 352         mode = GTK_SELECTION_EXTENDED;
 353     }
 354     else
 355     {
 356         // if style was 0 set single mode
 357         m_windowStyle |= wxLB_SINGLE;
 358         mode = GTK_SELECTION_BROWSE;
 359     }
 360
 361     gtk_list_set_selection_mode( GTK_LIST(m_list), mode );
 362
 363 #ifdef NEW_GTK_SCROLL_CODE
 364     gtk_scrolled_window_add_with_viewport( GTK_SCROLLED_WINDOW(m_widget), GTK_WIDGET(m_list) );
 365 #else
 366     gtk_container_add( GTK_CONTAINER(m_widget), GTK_WIDGET(m_list) );
 367 #endif
 368
 369     /* make list scroll when moving the focus down using cursor keys */
 370     gtk_container_set_focus_vadjustment(
 371         GTK_CONTAINER(m_list),
 372         gtk_scrolled_window_get_vadjustment(
 373             GTK_SCROLLED_WINDOW(m_widget)));
 374
 375     gtk_widget_show( GTK_WIDGET(m_list) );
 376
 377     SetSizeOrDefault( size );
 378
 379     if ( style & wxLB_SORT )
 380     {
 381         // this will change DoAppend() behaviour
 382         m_strings = new wxSortedArrayString;
 383     }
 384     else
 385     {
 386         m_strings = (wxSortedArrayString *)NULL;
 387     }
 388
 389     for (int i = 0; i < n; i++)
 390     {
 391         // add one by one
 392         DoAppend(choices[i]);
 393     }
 394
 395     m_parent->DoAddChild( this );
 396
 397     PostCreation();
 398
 399     SetBackgroundColour( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_LISTBOX ) );
 400     SetForegroundColour( parent->GetForegroundColour() );
 401     SetFont( parent->GetFont() );
 402
 403     Show( TRUE );
 404
 405     return TRUE;
 406 }
 407
 408 wxListBox::~wxListBox()
 409 {
 410     m_hasVMT = FALSE;
 411
 412     Clear();
 413
 414     if (m_strings)
 415       delete m_strings;
 416 }
 417
 418 void wxListBox::DoInsertItems(const wxArrayString& items, int pos)
 419 {
 420     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 421
 422     // VZ: notice that InsertItems knows nothing about sorting, so calling it
 423     //     from outside (and not from our own Append) is likely to break
 424     //     everything
 425
 426     // code elsewhere supposes we have as many items in m_clientList as items
 427     // in the listbox
 428     wxASSERT_MSG( m_clientList.GetCount() == (size_t)GetCount(),
 429                   wxT("bug in client data management") );
 430
 431     GList *children = m_list->children;
 432     int length = g_list_length(children);
 433
 434     wxCHECK_RET( pos <= length, wxT("invalid index in wxListBox::InsertItems") );
 435
 436     size_t nItems = items.GetCount();
 437     int index;
 438
 439     if (m_strings)
 440     {
 441         for (size_t n = 0; n < nItems; n++)
 442         {
 443             index = m_strings->Add( items[n] );
 444
 445             if (index != GetCount())
 446             {
 447                 GtkAddItem( items[n], index );
 448                 wxNode *node = m_clientList.Nth( index );
 449                 m_clientList.Insert( node, (wxObject*) NULL );
 450             }
 451             else
 452             {
 453                 GtkAddItem( items[n] );
 454                 m_clientList.Append( (wxObject*) NULL );
 455             }
 456         }
 457     }
 458     else
 459     {
 460         if (pos == length)
 461         {
 462             for ( size_t n = 0; n < nItems; n++ )
 463             {
 464                 GtkAddItem( items[n] );
 465
 466                 m_clientList.Append((wxObject *)NULL);
 467             }
 468         }
 469         else
 470         {
 471             wxNode *node = m_clientList.Nth( pos );
 472             for ( size_t n = 0; n < nItems; n++ )
 473             {
 474                 GtkAddItem( items[n], pos+n );
 475
 476                 m_clientList.Insert( node, (wxObject *)NULL );
 477             }
 478         }
 479     }
 480
 481     wxASSERT_MSG( m_clientList.GetCount() == (size_t)GetCount(),
 482                       wxT("bug in client data management") );
 483 }
 484
 485 int wxListBox::DoAppend( const wxString& item )
 486 {
 487     if (m_strings)
 488     {
 489         // need to determine the index
 490         int index = m_strings->Add( item );
 491
 492         // only if not at the end anyway
 493         if (index != GetCount())
 494         {
 495            GtkAddItem( item, index );
 496
 497            wxNode *node = m_clientList.Nth( index );
 498            m_clientList.Insert( node, (wxObject *)NULL );
 499
 500            return index;
 501         }
 502     }
 503
 504     GtkAddItem(item);
 505
 506     m_clientList.Append((wxObject *)NULL);
 507
 508     return GetCount() - 1;
 509 }
 510
 511 void wxListBox::GtkAddItem( const wxString &item, int pos )
 512 {
 513     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 514
 515     GtkWidget *list_item;
 516
 517     wxString label(item);
 518 #if wxUSE_CHECKLISTBOX
 519     if (m_hasCheckBoxes)
 520     {
 521         label.Prepend(wxCHECKLBOX_STRING);
 522     }
 523 #endif // wxUSE_CHECKLISTBOX
 524
 525     list_item = gtk_list_item_new_with_label( label.mbc_str() );
 526
 527     GList *gitem_list = g_list_alloc ();
 528     gitem_list->data = list_item;
 529
 530     if (pos == -1)
 531         gtk_list_append_items( GTK_LIST (m_list), gitem_list );
 532     else
 533         gtk_list_insert_items( GTK_LIST (m_list), gitem_list, pos );
 534
 535     gtk_signal_connect( GTK_OBJECT(list_item), "select",
 536       GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 537
 538     if (HasFlag(wxLB_MULTIPLE))
 539         gtk_signal_connect( GTK_OBJECT(list_item), "deselect",
 540           GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 541
 542     gtk_signal_connect( GTK_OBJECT(list_item),
 543                         "button_press_event",
 544                         (GtkSignalFunc)gtk_listbox_button_press_callback,
 545                         (gpointer) this );
 546
 547     gtk_signal_connect_after( GTK_OBJECT(list_item),
 548                         "button_release_event",
 549                         (GtkSignalFunc)gtk_listbox_button_release_callback,
 550                         (gpointer) this );
 551
 552     gtk_signal_connect( GTK_OBJECT(list_item),
 553                            "key_press_event",
 554                            (GtkSignalFunc)gtk_listbox_key_press_callback,
 555                            (gpointer)this );
 556
 557     ConnectWidget( list_item );
 558
 559     gtk_widget_show( list_item );
 560
 561     if (GTK_WIDGET_REALIZED(m_widget))
 562     {
 563         gtk_widget_realize( list_item );
 564         gtk_widget_realize( GTK_BIN(list_item)->child );
 565
 566         // Apply current widget style to the new list_item
 567         if (m_widgetStyle)
 568         {
 569             gtk_widget_set_style( GTK_WIDGET( list_item ), m_widgetStyle );
 570             GtkBin *bin = GTK_BIN( list_item );
 571             GtkWidget *label = GTK_WIDGET( bin->child );
 572             gtk_widget_set_style( label, m_widgetStyle );
 573         }
 574
 575 #if wxUSE_TOOLTIPS
 576         if (m_tooltip) m_tooltip->Apply( this );
 577 #endif
 578     }
 579 }
 580
 581 void wxListBox::DoSetItems( const wxArrayString& items,
 582                             void **clientData)
 583 {
 584     Clear();
 585
 586     DoInsertItems(items, 0);
 587
 588     if ( clientData )
 589     {
 590         size_t count = items.GetCount();
 591         for ( size_t n = 0; n < count; n++ )
 592         {
 593             SetClientData(n, clientData[n]);
 594         }
 595     }
 596 }
 597
 598 // ----------------------------------------------------------------------------
 599 // client data
 600 // ----------------------------------------------------------------------------
 601
 602 void wxListBox::DoSetItemClientData( int n, void* clientData )
 603 {
 604     wxCHECK_RET( m_widget != NULL, wxT("invalid listbox control") );
 605
 606     wxNode *node = m_clientList.Nth( n );
 607     wxCHECK_RET( node, wxT("invalid index in wxListBox::DoSetItemClientData") );
 608
 609     node->SetData( (wxObject*) clientData );
 610 }
 611
 612 void* wxListBox::DoGetItemClientData( int n ) const
 613 {
 614     wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid listbox control") );
 615
 616     wxNode *node = m_clientList.Nth( n );
 617     wxCHECK_MSG( node, NULL, wxT("invalid index in wxListBox::DoGetItemClientData") );
 618
 619     return node->Data();
 620 }
 621
 622 void wxListBox::DoSetItemClientObject( int n, wxClientData* clientData )
 623 {
 624     wxCHECK_RET( m_widget != NULL, wxT("invalid listbox control") );
 625
 626     wxNode *node = m_clientList.Nth( n );
 627     wxCHECK_RET( node, wxT("invalid index in wxListBox::DoSetItemClientObject") );
 628
 629     wxClientData *cd = (wxClientData*) node->Data();
 630     delete cd;
 631
 632     node->SetData( (wxObject*) clientData );
 633 }
 634
 635 wxClientData* wxListBox::DoGetItemClientObject( int n ) const
 636 {
 637     wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, wxT("invalid listbox control") );
 638
 639     wxNode *node = m_clientList.Nth( n );
 640     wxCHECK_MSG( node, (wxClientData *)NULL,
 641                  wxT("invalid index in wxListBox::DoGetItemClientObject") );
 642
 643     return (wxClientData*) node->Data();
 644 }
 645
 646 void wxListBox::Clear()
 647 {
 648     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 649
 650     gtk_list_clear_items( m_list, 0, Number() );
 651
 652     if ( HasClientObjectData() )
 653     {
 654         // destroy the data (due to Robert's idea of using wxList<wxObject>
 655         // and not wxList<wxClientData> we can't just say
 656         // m_clientList.DeleteContents(TRUE) - this would crash!
 657         wxNode *node = m_clientList.First();
 658         while ( node )
 659         {
 660             delete (wxClientData *)node->Data();
 661             node = node->Next();
 662         }
 663     }
 664     m_clientList.Clear();
 665
 666     if ( m_strings )
 667         m_strings->Clear();
 668 }
 669
 670 void wxListBox::Delete( int n )
 671 {
 672     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 673
 674     GList *child = g_list_nth( m_list->children, n );
 675
 676     wxCHECK_RET( child, wxT("wrong listbox index") );
 677
 678     GList *list = g_list_append( (GList*) NULL, child->data );
 679     gtk_list_remove_items( m_list, list );
 680     g_list_free( list );
 681
 682     wxNode *node = m_clientList.Nth( n );
 683     if ( node )
 684     {
 685         if ( m_clientDataItemsType == ClientData_Object )
 686         {
 687             wxClientData *cd = (wxClientData*)node->Data();
 688             delete cd;
 689         }
 690
 691         m_clientList.DeleteNode( node );
 692     }
 693
 694     if ( m_strings )
 695         m_strings->Remove(n);
 696 }
 697
 698 // ----------------------------------------------------------------------------
 699 // string list access
 700 // ----------------------------------------------------------------------------
 701
 702 void wxListBox::SetString( int n, const wxString &string )
 703 {
 704     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 705
 706     GList *child = g_list_nth( m_list->children, n );
 707     if (child)
 708     {
 709         GtkBin *bin = GTK_BIN( child->data );
 710         GtkLabel *label = GTK_LABEL( bin->child );
 711
 712         wxString str;
 713 #if wxUSE_CHECKLISTBOX
 714         if (m_hasCheckBoxes)
 715             str += wxCHECKLBOX_STRING;
 716 #endif // wxUSE_CHECKLISTBOX
 717         str += string;
 718
 719         gtk_label_set( label, str.mbc_str() );
 720     }
 721     else
 722     {
 723         wxFAIL_MSG(wxT("wrong listbox index"));
 724     }
 725 }
 726
 727 wxString wxListBox::GetString( int n ) const
 728 {
 729     wxCHECK_MSG( m_list != NULL, wxT(""), wxT("invalid listbox") );
 730
 731     GList *child = g_list_nth( m_list->children, n );
 732     if (child)
 733     {
 734         GtkBin *bin = GTK_BIN( child->data );
 735         GtkLabel *label = GTK_LABEL( bin->child );
 736
 737         wxString str = wxString(GET_REAL_LABEL(label->label),*wxConvCurrent);
 738
 739         return str;
 740     }
 741
 742     wxFAIL_MSG(wxT("wrong listbox index"));
 743
 744     return wxT("");
 745 }
 746
 747 int wxListBox::GetCount() const
 748 {
 749     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 750
 751     GList *children = m_list->children;
 752     return g_list_length(children);
 753 }
 754
 755 int wxListBox::FindString( const wxString &item ) const
 756 {
 757     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 758
 759     GList *child = m_list->children;
 760     int count = 0;
 761     while (child)
 762     {
 763         GtkBin *bin = GTK_BIN( child->data );
 764         GtkLabel *label = GTK_LABEL( bin->child );
 765
 766         wxString str = wxString(GET_REAL_LABEL(label->label),*wxConvCurrent);
 767
 768         if (str == item)
 769             return count;
 770
 771         count++;
 772         child = child->next;
 773     }
 774
 775     // it's not an error if the string is not found -> no wxCHECK
 776
 777     return wxNOT_FOUND;
 778 }
 779
 780 // ----------------------------------------------------------------------------
 781 // selection
 782 // ----------------------------------------------------------------------------
 783
 784 int wxListBox::GetSelection() const
 785 {
 786     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 787
 788     GList *child = m_list->children;
 789     int count = 0;
 790     while (child)
 791     {
 792         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED) return count;
 793         count++;
 794         child = child->next;
 795     }
 796     return -1;
 797 }
 798
 799 int wxListBox::GetSelections( wxArrayInt& aSelections ) const
 800 {
 801     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 802
 803     // get the number of selected items first
 804     GList *child = m_list->children;
 805     int count = 0;
 806     for (child = m_list->children; child != NULL; child = child->next)
 807     {
 808         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
 809             count++;
 810     }
 811
 812     aSelections.Empty();
 813
 814     if (count > 0)
 815     {
 816         // now fill the list
 817         aSelections.Alloc(count); // optimization attempt
 818         int i = 0;
 819         for (child = m_list->children; child != NULL; child = child->next, i++)
 820         {
 821             if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
 822                  aSelections.Add(i);
 823         }
 824     }
 825
 826     return count;
 827 }
 828
 829 bool wxListBox::IsSelected( int n ) const
 830 {
 831     wxCHECK_MSG( m_list != NULL, FALSE, wxT("invalid listbox") );
 832
 833     GList *target = g_list_nth( m_list->children, n );
 834
 835     wxCHECK_MSG( target, FALSE, wxT("invalid listbox index") );
 836
 837     return (GTK_WIDGET(target->data)->state == GTK_STATE_SELECTED) ;
 838 }
 839
 840 void wxListBox::SetSelection( int n, bool select )
 841 {
 842     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 843
 844     GtkDisableEvents();
 845
 846     if (select)
 847         gtk_list_select_item( m_list, n );
 848     else
 849         gtk_list_unselect_item( m_list, n );
 850
 851     GtkEnableEvents();
 852 }
 853
 854 void wxListBox::DoSetFirstItem( int n )
 855 {
 856     wxCHECK_RET( m_list, wxT("invalid listbox") );
 857
 858     if (gdk_pointer_is_grabbed () && GTK_WIDGET_HAS_GRAB (m_list))
 859         return;
 860
 861     // terribly efficient
 862     const gchar *vadjustment_key = "gtk-vadjustment";
 863     guint vadjustment_key_id = g_quark_from_static_string (vadjustment_key);
 864
 865     GtkAdjustment *adjustment =
 866        (GtkAdjustment*) gtk_object_get_data_by_id (GTK_OBJECT (m_list), vadjustment_key_id);
 867     wxCHECK_RET( adjustment, wxT("invalid listbox code") );
 868
 869     GList *target = g_list_nth( m_list->children, n );
 870     wxCHECK_RET( target, wxT("invalid listbox index") );
 871
 872     GtkWidget *item = GTK_WIDGET(target->data);
 873     wxCHECK_RET( item, wxT("invalid listbox code") );
 874
 875     if (item->allocation.y == -1)
 876     {
 877         wxlistbox_idle_struct* data = new wxlistbox_idle_struct;
 878         data->m_listbox = this;
 879         data->m_item = n;
 880         data->m_tag = gtk_idle_add_priority( 800, wxlistbox_idle_callback, (gpointer) data );
 881
 882         return;
 883     }
 884
 885     float y = item->allocation.y;
 886     if (y > adjustment->upper - adjustment->page_size)
 887         y = adjustment->upper - adjustment->page_size;
 888         gtk_adjustment_set_value( adjustment, y );
 889 }
 890
 891 // ----------------------------------------------------------------------------
 892 // helpers
 893 // ----------------------------------------------------------------------------
 894
 895 int wxListBox::GtkGetIndex( GtkWidget *item ) const
 896 {
 897     if (item)
 898     {
 899         GList *child = m_list->children;
 900         int count = 0;
 901         while (child)
 902         {
 903             if (GTK_WIDGET(child->data) == item) return count;
 904             count++;
 905             child = child->next;
 906         }
 907     }
 908     return -1;
 909 }
 910
 911 #if wxUSE_TOOLTIPS
 912 void wxListBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
 913 {
 914     GList *child = m_list->children;
 915     while (child)
 916     {
 917         gtk_tooltips_set_tip( tips, GTK_WIDGET( child->data ), wxConvCurrent->cWX2MB(tip), (gchar*) NULL );
 918         child = child->next;
 919     }
 920 }
 921 #endif // wxUSE_TOOLTIPS
 922
 923 void wxListBox::GtkDisableEvents()
 924 {
 925     GList *child = m_list->children;
 926     while (child)
 927     {
 928         gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
 929           GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 930
 931         if (HasFlag(wxLB_MULTIPLE))
 932             gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
 933               GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 934
 935         child = child->next;
 936     }
 937 }
 938
 939 void wxListBox::GtkEnableEvents()
 940 {
 941     GList *child = m_list->children;
 942     while (child)
 943     {
 944         gtk_signal_connect( GTK_OBJECT(child->data), "select",
 945           GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 946
 947         if (HasFlag(wxLB_MULTIPLE))
 948             gtk_signal_connect( GTK_OBJECT(child->data), "deselect",
 949               GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 950
 951         child = child->next;
 952     }
 953 }
 954
 955 GtkWidget *wxListBox::GetConnectWidget()
 956 {
 957     return GTK_WIDGET(m_list);
 958 }
 959
 960 bool wxListBox::IsOwnGtkWindow( GdkWindow *window )
 961 {
 962     if (GTK_WIDGET(m_list)->window == window) return TRUE;
 963
 964     GList *child = m_list->children;
 965     while (child)
 966     {
 967         GtkWidget *bin = GTK_WIDGET( child->data );
 968         if (bin->window == window) return TRUE;
 969         child = child->next;
 970     }
 971
 972     return FALSE;
 973 }
 974
 975 void wxListBox::ApplyWidgetStyle()
 976 {
 977     SetWidgetStyle();
 978
 979     if (m_backgroundColour.Ok())
 980     {
 981         GdkWindow *window = GTK_WIDGET(m_list)->window;
 982         if ( window )
 983         {
 984             m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 985             gdk_window_set_background( window, m_backgroundColour.GetColor() );
 986             gdk_window_clear( window );
 987         }
 988     }
 989
 990     GList *child = m_list->children;
 991     while (child)
 992     {
 993         gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );
 994
 995         GtkBin *bin = GTK_BIN( child->data );
 996         GtkWidget *label = GTK_WIDGET( bin->child );
 997         gtk_widget_set_style( label, m_widgetStyle );
 998
 999         child = child->next;
1000     }
1001 }
1002
1003 void wxListBox::OnInternalIdle()
1004 {
1005     wxCursor cursor = m_cursor;
1006     if (g_globalCursor.Ok()) cursor = g_globalCursor;
1007
1008     if (GTK_WIDGET(m_list)->window && cursor.Ok())
1009     {
1010         /* I now set the cursor the anew in every OnInternalIdle call
1011            as setting the cursor in a parent window also effects the
1012            windows above so that checking for the current cursor is
1013            not possible. */
1014
1015         gdk_window_set_cursor( GTK_WIDGET(m_list)->window, cursor.GetCursor() );
1016
1017         GList *child = m_list->children;
1018         while (child)
1019         {
1020             GtkBin *bin = GTK_BIN( child->data );
1021             GtkWidget *label = GTK_WIDGET( bin->child );
1022
1023             if (!label->window)
1024                 break;
1025             else
1026                 gdk_window_set_cursor( label->window, cursor.GetCursor() );
1027
1028             child = child->next;
1029         }
1030     }
1031
1032     UpdateWindowUI();
1033 }
1034
1035 wxSize wxListBox::DoGetBestSize() const
1036 {
1037     return wxSize(100, 110);
1038 }
1039
1040 #endif