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 #if wxUSE_DRAG_AND_DROP
  30 #include "wx/dnd.h"
  31 #endif
  32
  33 #include "gdk/gdk.h"
  34 #include "gtk/gtk.h"
  35
  36 //-----------------------------------------------------------------------------
  37 // idle system
  38 //-----------------------------------------------------------------------------
  39
  40 extern void wxapp_install_idle_handler();
  41 extern bool g_isIdle;
  42
  43 //-------------------------------------------------------------------------
  44 // conditional compilation
  45 //-------------------------------------------------------------------------
  46
  47 #if (GTK_MINOR_VERSION > 0)
  48     #define NEW_GTK_SCROLL_CODE
  49 #endif
  50
  51 //-----------------------------------------------------------------------------
  52 // private functions
  53 //-----------------------------------------------------------------------------
  54
  55 #if wxUSE_CHECKLISTBOX
  56
  57 #define CHECKBOX_STRING "[-] "
  58
  59 // checklistboxes have "[±] " prepended to their lables, this macro removes it
  60 // (NB: 4 below is the length of CHECKBOX_STRING above)
  61 //
  62 // the argument to it is a "const char *" pointer
  63 #define GET_REAL_LABEL(label) ((m_hasCheckBoxes)?(label)+4 : (label))
  64
  65 #else // !wxUSE_CHECKLISTBOX
  66
  67 #define GET_REAL_LABEL(label) (label)
  68
  69 #endif // wxUSE_CHECKLISTBOX
  70
  71 //-----------------------------------------------------------------------------
  72 // data
  73 //-----------------------------------------------------------------------------
  74
  75 extern bool   g_blockEventsOnDrag;
  76 extern bool   g_blockEventsOnScroll;
  77
  78 static bool   g_hasDoubleClicked = FALSE;
  79
  80 //-----------------------------------------------------------------------------
  81 // "button_release_event"
  82 //-----------------------------------------------------------------------------
  83
  84 /* we would normally emit a wxEVT_COMMAND_LISTBOX_DOUBLECLICKED event once
  85    a GDK_2BUTTON_PRESS occurs, but this has the particular problem of the
  86    listbox keeping the focus until it receives a GDK_BUTTON_RELEASE event.
  87    this can lead to race conditions so that we emit the dclick event
  88    after the GDK_BUTTON_RELEASE event after the GDK_2BUTTON_PRESS event */
  89
  90 static gint
  91 gtk_listbox_button_release_callback( GtkWidget *widget, GdkEventButton *gdk_event, 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 count = listbox->GetSelections(aSelections);
 107         if ( count > 0 )
 108         {
 109             event.m_commandInt = aSelections[0] ;
 110             event.m_clientData = listbox->GetClientData( event.m_commandInt );
 111             wxString str(listbox->GetString(event.m_commandInt));
 112             if (!str.IsEmpty()) event.m_commandString = str;
 113         }
 114         else
 115         {
 116             event.m_commandInt = -1 ;
 117             event.m_commandString.Empty();
 118         }
 119
 120         listbox->GetEventHandler()->ProcessEvent( event );
 121
 122     return FALSE;
 123 }
 124
 125 //-----------------------------------------------------------------------------
 126 // "button_press_event"
 127 //-----------------------------------------------------------------------------
 128
 129 static gint
 130 gtk_listbox_button_press_callback( GtkWidget *widget, GdkEventButton *gdk_event, wxListBox *listbox )
 131 {
 132     if (g_isIdle) wxapp_install_idle_handler();
 133
 134     if (g_blockEventsOnDrag) return FALSE;
 135     if (g_blockEventsOnScroll) return FALSE;
 136
 137     if (!listbox->m_hasVMT) return FALSE;
 138
 139     int sel = listbox->GetIndex( widget );
 140
 141 #if wxUSE_CHECKLISTBOX
 142     if ((listbox->m_hasCheckBoxes) && (gdk_event->x < 15) && (gdk_event->type != GDK_2BUTTON_PRESS))
 143     {
 144         wxCheckListBox *clb = (wxCheckListBox *)listbox;
 145
 146         clb->Check( sel, !clb->IsChecked(sel) );
 147
 148         wxCommandEvent event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 149         event.SetEventObject( listbox );
 150         event.SetInt( sel );
 151         listbox->GetEventHandler()->ProcessEvent( event );
 152     }
 153 #endif // wxUSE_CHECKLISTBOX
 154
 155     /* emit wxEVT_COMMAND_LISTBOX_DOUBLECLICKED later */
 156     g_hasDoubleClicked = (gdk_event->type == GDK_2BUTTON_PRESS);
 157
 158     return FALSE;
 159 }
 160
 161 //-----------------------------------------------------------------------------
 162 // "key_press_event"
 163 //-----------------------------------------------------------------------------
 164
 165 #if wxUSE_CHECKLISTBOX
 166 static gint
 167 gtk_listbox_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxListBox *listbox )
 168 {
 169     if (g_isIdle) wxapp_install_idle_handler();
 170
 171     if (g_blockEventsOnDrag) return FALSE;
 172
 173     if (!listbox->m_hasVMT) return FALSE;
 174
 175     if (gdk_event->keyval != ' ') return FALSE;
 176
 177     int sel = listbox->GetIndex( widget );
 178
 179     wxCheckListBox *clb = (wxCheckListBox *)listbox;
 180
 181     clb->Check( sel, !clb->IsChecked(sel) );
 182
 183     wxCommandEvent event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 184     event.SetEventObject( listbox );
 185     event.SetInt( sel );
 186     listbox->GetEventHandler()->ProcessEvent( event );
 187
 188     return FALSE;
 189 }
 190 #endif // wxUSE_CHECKLISTBOX
 191
 192 //-----------------------------------------------------------------------------
 193 // "select" and "deselect"
 194 //-----------------------------------------------------------------------------
 195
 196 static void gtk_listitem_select_callback( GtkWidget *WXUNUSED(widget), wxListBox *listbox );
 197
 198 static void gtk_listitem_deselect_callback( GtkWidget *widget, wxListBox *listbox )
 199 {
 200     gtk_listitem_select_callback( widget, listbox );
 201 }
 202
 203 static void gtk_listitem_select_callback( GtkWidget *WXUNUSED(widget), wxListBox *listbox )
 204 {
 205     if (g_isIdle) wxapp_install_idle_handler();
 206
 207     if (!listbox->m_hasVMT) return;
 208     if (g_blockEventsOnDrag) return;
 209
 210     wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, listbox->GetId() );
 211
 212     wxArrayInt aSelections;
 213     int count = listbox->GetSelections(aSelections);
 214     if ( count > 0 )
 215     {
 216         event.m_commandInt = aSelections[0] ;
 217         event.m_clientData = listbox->GetClientData( event.m_commandInt );
 218         wxString str(listbox->GetString(event.m_commandInt));
 219         if (!str.IsEmpty()) event.m_commandString = str;
 220     }
 221     else
 222     {
 223         event.m_commandInt = -1 ;
 224         event.m_commandString.Empty();
 225     }
 226
 227     event.SetEventObject( listbox );
 228
 229     listbox->GetEventHandler()->ProcessEvent( event );
 230 }
 231
 232 //-----------------------------------------------------------------------------
 233 // wxListBox
 234 //-----------------------------------------------------------------------------
 235
 236 IMPLEMENT_DYNAMIC_CLASS(wxListBox,wxControl)
 237
 238 wxListBox::wxListBox()
 239 {
 240     m_list = (GtkList *) NULL;
 241 #if wxUSE_CHECKLISTBOX
 242     m_hasCheckBoxes = FALSE;
 243 #endif // wxUSE_CHECKLISTBOX
 244 }
 245
 246 bool wxListBox::Create( wxWindow *parent, wxWindowID id,
 247                         const wxPoint &pos, const wxSize &size,
 248                         int n, const wxString choices[],
 249                         long style, const wxValidator& validator, const wxString &name )
 250 {
 251     m_needParent = TRUE;
 252     m_acceptsFocus = TRUE;
 253
 254     if (!PreCreation( parent, pos, size ) ||
 255         !CreateBase( parent, id, pos, size, style, validator, name ))
 256     {
 257         wxFAIL_MSG( _T("wxListBox creation failed") );
 258         return FALSE;
 259     }
 260
 261     m_widget = gtk_scrolled_window_new( (GtkAdjustment*) NULL, (GtkAdjustment*) NULL );
 262     if (style & wxLB_ALWAYS_SB)
 263     {
 264       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 265         GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS );
 266     }
 267     else
 268     {
 269       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 270         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 271     }
 272
 273     m_list = GTK_LIST( gtk_list_new() );
 274
 275     GtkSelectionMode mode = GTK_SELECTION_BROWSE;
 276     if (style & wxLB_MULTIPLE)
 277         mode = GTK_SELECTION_MULTIPLE;
 278     else if (style & wxLB_EXTENDED)
 279         mode = GTK_SELECTION_EXTENDED;
 280
 281     gtk_list_set_selection_mode( GTK_LIST(m_list), mode );
 282
 283 #ifdef NEW_GTK_SCROLL_CODE
 284     gtk_scrolled_window_add_with_viewport( GTK_SCROLLED_WINDOW(m_widget), GTK_WIDGET(m_list) );
 285 #else
 286     gtk_container_add( GTK_CONTAINER(m_widget), GTK_WIDGET(m_list) );
 287 #endif
 288
 289     gtk_widget_show( GTK_WIDGET(m_list) );
 290
 291     wxSize newSize = size;
 292     if (newSize.x == -1) newSize.x = 100;
 293     if (newSize.y == -1) newSize.y = 110;
 294     SetSize( newSize.x, newSize.y );
 295
 296     for (int i = 0; i < n; i++)
 297     {
 298         m_clientDataList.Append( (wxObject*) NULL );
 299         m_clientObjectList.Append( (wxObject*) NULL );
 300
 301         GtkWidget *list_item;
 302
 303         wxString str(choices[i]);
 304 #if wxUSE_CHECKLISTBOX
 305         if (m_hasCheckBoxes)
 306         {
 307             str.Prepend(CHECKBOX_STRING);
 308         }
 309 #endif // wxUSE_CHECKLISTBOX
 310
 311         list_item = gtk_list_item_new_with_label( str.mbc_str() );
 312
 313         gtk_container_add( GTK_CONTAINER(m_list), list_item );
 314
 315         gtk_signal_connect( GTK_OBJECT(list_item), "select",
 316           GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 317
 318         if (style & wxLB_MULTIPLE)
 319             gtk_signal_connect( GTK_OBJECT(list_item), "deselect",
 320               GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 321
 322         gtk_signal_connect( GTK_OBJECT(list_item),
 323                             "button_press_event",
 324                             (GtkSignalFunc)gtk_listbox_button_press_callback,
 325                             (gpointer) this );
 326
 327         gtk_signal_connect_after( GTK_OBJECT(list_item),
 328                             "button_release_event",
 329                             (GtkSignalFunc)gtk_listbox_button_release_callback,
 330                             (gpointer) this );
 331
 332 #if wxUSE_CHECKLISTBOX
 333         if (m_hasCheckBoxes)
 334         {
 335             gtk_signal_connect( GTK_OBJECT(list_item),
 336                             "key_press_event",
 337                             (GtkSignalFunc)gtk_listbox_key_press_callback,
 338                             (gpointer)this );
 339         }
 340 #endif // wxUSE_CHECKLISTBOX
 341
 342         ConnectWidget( list_item );
 343
 344         gtk_widget_show( list_item );
 345     }
 346
 347     m_parent->DoAddChild( this );
 348
 349     PostCreation();
 350
 351     SetBackgroundColour( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_WINDOW ) );
 352     SetForegroundColour( parent->GetForegroundColour() );
 353     SetFont( parent->GetFont() );
 354
 355     Show( TRUE );
 356
 357     return TRUE;
 358 }
 359
 360 wxListBox::~wxListBox()
 361 {
 362     Clear();
 363 }
 364
 365 void wxListBox::InsertItems(int nItems, const wxString items[], int pos)
 366 {
 367     wxCHECK_RET( m_list != NULL, _T("invalid listbox") );
 368
 369     GList *children = m_list->children;
 370     int length = g_list_length(children);
 371     wxCHECK_RET( pos <= length, _T("invalid index in wxListBox::InsertItems") );
 372
 373     // VZ: it seems that GTK 1.0.6 doesn't has a function to insert an item
 374     //     into a listbox at the given position, this is why we first delete
 375     //     all items after this position, then append these items and then
 376     //     reappend back the old ones.
 377
 378     // first detach the old items
 379     int n; // loop var
 380
 381     if ( pos == length )
 382     {
 383         // no need to do anything complicated
 384         for ( n = 0; n < nItems; n++ )
 385         {
 386             Append(items[n]);
 387         }
 388
 389         return;
 390     }
 391
 392     wxArrayString deletedLabels;
 393     wxArrayPtrVoid deletedData;
 394     wxArrayInt deletedChecks;   // only for check list boxes
 395
 396     GList *child = g_list_nth( children, pos );
 397     for ( n = 0; child != NULL; n++, child = child->next )
 398     {
 399         // save label
 400         GtkBin *bin = GTK_BIN( child->data );
 401         GtkLabel *label = GTK_LABEL( bin->child );
 402
 403         wxString str(GET_REAL_LABEL(label->label),*wxConvCurrent);
 404         deletedLabels.Add(str);
 405
 406         // save data
 407         void *clientData = NULL;
 408         wxNode *node = NULL;
 409
 410         if ( n < (int)m_clientObjectList.GetCount() )
 411             node = m_clientObjectList.Nth( n );
 412
 413         if ( node )
 414         {
 415             clientData = node->GetData();
 416             m_clientObjectList.DeleteNode( node );
 417         }
 418
 419         if ( !clientData )
 420         {
 421             if ( n < (int)m_clientDataList.GetCount() )
 422                 node = m_clientDataList.Nth( n );
 423
 424             if ( node )
 425             {
 426                 clientData = node->GetData();
 427                 node = m_clientDataList.Nth( n );
 428             }
 429         }
 430
 431         deletedData.Add(clientData);
 432
 433 #if wxUSE_CHECKLISTBOX
 434         // save check state
 435         if ( m_hasCheckBoxes )
 436         {
 437             deletedChecks.Add(((wxCheckListBox *)this)->IsChecked(pos + n));
 438         }
 439 #endif // wxUSE_CHECKLISTBOX
 440     }
 441
 442     int nDeletedCount = n;
 443
 444     gtk_list_clear_items( m_list, pos, length );
 445
 446     // now append the new items
 447     for ( n = 0; n < nItems; n++ )
 448     {
 449         Append(items[n]);
 450     }
 451
 452     // and append the old items too
 453     pos += nItems;  // now the indices are shifter
 454     for ( n = 0; n < nDeletedCount; n++ )
 455     {
 456         Append(deletedLabels[n], deletedData[n]);
 457
 458 #if wxUSE_CHECKLISTBOX
 459         if ( m_hasCheckBoxes )
 460         {
 461             ((wxCheckListBox *)this)->Check(pos + n, (bool)deletedChecks[n]);
 462         }
 463 #endif // wxUSE_CHECKLISTBOX
 464     }
 465 }
 466
 467 void wxListBox::AppendCommon( const wxString &item )
 468 {
 469     wxCHECK_RET( m_list != NULL, _T("invalid listbox") );
 470
 471     GtkWidget *list_item;
 472
 473     wxString label(item);
 474 #if wxUSE_CHECKLISTBOX
 475     if (m_hasCheckBoxes)
 476     {
 477         label.Prepend(CHECKBOX_STRING);
 478     }
 479 #endif // wxUSE_CHECKLISTBOX
 480
 481     list_item = gtk_list_item_new_with_label( label.mbc_str() );
 482
 483     gtk_container_add( GTK_CONTAINER(m_list), list_item );
 484
 485     gtk_signal_connect( GTK_OBJECT(list_item), "select",
 486       GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 487
 488     if (HasFlag(wxLB_MULTIPLE))
 489         gtk_signal_connect( GTK_OBJECT(list_item), "deselect",
 490           GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 491
 492     gtk_signal_connect( GTK_OBJECT(list_item),
 493                         "button_press_event",
 494                         (GtkSignalFunc)gtk_listbox_button_press_callback,
 495                         (gpointer) this );
 496
 497     gtk_signal_connect_after( GTK_OBJECT(list_item),
 498                         "button_release_event",
 499                         (GtkSignalFunc)gtk_listbox_button_release_callback,
 500                         (gpointer) this );
 501
 502 #if wxUSE_CHECKLISTBOX
 503     if (m_hasCheckBoxes)
 504     {
 505        gtk_signal_connect( GTK_OBJECT(list_item),
 506                            "key_press_event",
 507                            (GtkSignalFunc)gtk_listbox_key_press_callback,
 508                            (gpointer)this );
 509     }
 510 #endif // wxUSE_CHECKLISTBOX
 511
 512     gtk_widget_show( list_item );
 513
 514     ConnectWidget( list_item );
 515
 516     if (GTK_WIDGET_REALIZED(m_widget))
 517     {
 518         gtk_widget_realize( list_item );
 519         gtk_widget_realize( GTK_BIN(list_item)->child );
 520
 521         if (m_widgetStyle) ApplyWidgetStyle();
 522
 523 #if wxUSE_DRAG_AND_DROP
 524 #ifndef NEW_GTK_DND_CODE
 525         if (m_dropTarget) m_dropTarget->RegisterWidget( list_item );
 526 #endif
 527 #endif
 528
 529 #if wxUSE_TOOLTIPS
 530         if (m_tooltip) m_tooltip->Apply( this );
 531 #endif
 532     }
 533 }
 534
 535 void wxListBox::Append( const wxString &item )
 536 {
 537     m_clientDataList.Append( (wxObject*) NULL );
 538     m_clientObjectList.Append( (wxObject*) NULL );
 539
 540     AppendCommon( item );
 541 }
 542
 543 void wxListBox::Append( const wxString &item, void *clientData )
 544 {
 545     m_clientDataList.Append( (wxObject*) clientData );
 546     m_clientObjectList.Append( (wxObject*) NULL );
 547
 548     AppendCommon( item );
 549 }
 550
 551 void wxListBox::Append( const wxString &item, wxClientData *clientData )
 552 {
 553     m_clientObjectList.Append( (wxObject*) clientData );
 554     m_clientDataList.Append( (wxObject*) NULL );
 555
 556     AppendCommon( item );
 557 }
 558
 559 void wxListBox::SetClientData( int n, void* clientData )
 560 {
 561     wxCHECK_RET( m_widget != NULL, _T("invalid combobox") );
 562
 563     wxNode *node = m_clientDataList.Nth( n );
 564     if (!node) return;
 565
 566     node->SetData( (wxObject*) clientData );
 567 }
 568
 569 void* wxListBox::GetClientData( int n )
 570 {
 571     wxCHECK_MSG( m_widget != NULL, NULL, _T("invalid combobox") );
 572
 573     wxNode *node = m_clientDataList.Nth( n );
 574     if (!node) return NULL;
 575
 576     return node->Data();
 577 }
 578
 579 void wxListBox::SetClientObject( int n, wxClientData* clientData )
 580 {
 581     wxCHECK_RET( m_widget != NULL, _T("invalid combobox") );
 582
 583     wxNode *node = m_clientObjectList.Nth( n );
 584     if (!node) return;
 585
 586     wxClientData *cd = (wxClientData*) node->Data();
 587     if (cd) delete cd;
 588
 589     node->SetData( (wxObject*) clientData );
 590 }
 591
 592 wxClientData* wxListBox::GetClientObject( int n )
 593 {
 594     wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, _T("invalid combobox") );
 595
 596     wxNode *node = m_clientObjectList.Nth( n );
 597     if (!node) return (wxClientData*) NULL;
 598
 599     return (wxClientData*) node->Data();
 600 }
 601
 602 void wxListBox::Clear()
 603 {
 604     wxCHECK_RET( m_list != NULL, _T("invalid listbox") );
 605
 606     gtk_list_clear_items( m_list, 0, Number() );
 607
 608     wxNode *node = m_clientObjectList.First();
 609     while (node)
 610     {
 611         wxClientData *cd = (wxClientData*)node->Data();
 612         if (cd) delete cd;
 613         node = node->Next();
 614     }
 615     m_clientObjectList.Clear();
 616
 617     m_clientDataList.Clear();
 618 }
 619
 620 void wxListBox::Delete( int n )
 621 {
 622     wxCHECK_RET( m_list != NULL, _T("invalid listbox") );
 623
 624     GList *child = g_list_nth( m_list->children, n );
 625
 626     wxCHECK_RET( child, _T("wrong listbox index") );
 627
 628     GList *list = g_list_append( (GList*) NULL, child->data );
 629     gtk_list_remove_items( m_list, list );
 630     g_list_free( list );
 631
 632     wxNode *node = m_clientObjectList.Nth( n );
 633     if (node)
 634     {
 635         wxClientData *cd = (wxClientData*)node->Data();
 636         if (cd) delete cd;
 637         m_clientObjectList.DeleteNode( node );
 638     }
 639
 640     node = m_clientDataList.Nth( n );
 641     if (node)
 642     {
 643         m_clientDataList.DeleteNode( node );
 644     }
 645 }
 646
 647 void wxListBox::Deselect( int n )
 648 {
 649     wxCHECK_RET( m_list != NULL, _T("invalid listbox") );
 650
 651     DisableEvents();
 652
 653     gtk_list_unselect_item( m_list, n );
 654
 655     EnableEvents();
 656 }
 657
 658 int wxListBox::FindString( const wxString &item ) const
 659 {
 660     wxCHECK_MSG( m_list != NULL, -1, _T("invalid listbox") );
 661
 662     GList *child = m_list->children;
 663     int count = 0;
 664     while (child)
 665     {
 666         GtkBin *bin = GTK_BIN( child->data );
 667         GtkLabel *label = GTK_LABEL( bin->child );
 668
 669         wxString str = wxString(GET_REAL_LABEL(label->label),*wxConvCurrent);
 670
 671         if (str == item)
 672             return count;
 673
 674         count++;
 675         child = child->next;
 676     }
 677
 678   // it's not an error if the string is not found -> no wxCHECK
 679
 680   return -1;
 681 }
 682
 683 int wxListBox::GetSelection() const
 684 {
 685     wxCHECK_MSG( m_list != NULL, -1, _T("invalid listbox") );
 686
 687     GList *child = m_list->children;
 688     int count = 0;
 689     while (child)
 690     {
 691         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED) return count;
 692         count++;
 693         child = child->next;
 694     }
 695     return -1;
 696 }
 697
 698 int wxListBox::GetSelections( wxArrayInt& aSelections ) const
 699 {
 700     wxCHECK_MSG( m_list != NULL, -1, _T("invalid listbox") );
 701
 702     // get the number of selected items first
 703     GList *child = m_list->children;
 704     int count = 0;
 705     for (child = m_list->children; child != NULL; child = child->next)
 706     {
 707         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
 708             count++;
 709     }
 710
 711     aSelections.Empty();
 712
 713     if (count > 0)
 714     {
 715         // now fill the list
 716         aSelections.Alloc(count); // optimization attempt
 717         int i = 0;
 718         for (child = m_list->children; child != NULL; child = child->next, i++)
 719         {
 720             if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
 721                  aSelections.Add(i);
 722         }
 723     }
 724
 725     return count;
 726 }
 727
 728 wxString wxListBox::GetString( int n ) const
 729 {
 730     wxCHECK_MSG( m_list != NULL, _T(""), _T("invalid listbox") );
 731
 732     GList *child = g_list_nth( m_list->children, n );
 733     if (child)
 734     {
 735         GtkBin *bin = GTK_BIN( child->data );
 736         GtkLabel *label = GTK_LABEL( bin->child );
 737
 738         wxString str = wxString(GET_REAL_LABEL(label->label),*wxConvCurrent);
 739
 740         return str;
 741     }
 742
 743     wxFAIL_MSG(_T("wrong listbox index"));
 744
 745     return _T("");
 746 }
 747
 748 wxString wxListBox::GetStringSelection() const
 749 {
 750     wxCHECK_MSG( m_list != NULL, _T(""), _T("invalid listbox") );
 751
 752     GList *selection = m_list->selection;
 753     if (selection)
 754     {
 755         GtkBin *bin = GTK_BIN( selection->data );
 756         GtkLabel *label = GTK_LABEL( bin->child );
 757
 758         wxString str = wxString(GET_REAL_LABEL(label->label),*wxConvCurrent);
 759
 760         return str;
 761     }
 762
 763     wxFAIL_MSG(_T("no listbox selection available"));
 764     return _T("");
 765 }
 766
 767 int wxListBox::Number()
 768 {
 769     wxCHECK_MSG( m_list != NULL, -1, _T("invalid listbox") );
 770
 771     GList *child = m_list->children;
 772     int count = 0;
 773     while (child) { count++; child = child->next; }
 774     return count;
 775 }
 776
 777 bool wxListBox::Selected( int n )
 778 {
 779     wxCHECK_MSG( m_list != NULL, FALSE, _T("invalid listbox") );
 780
 781     GList *target = g_list_nth( m_list->children, n );
 782     if (target)
 783     {
 784         GList *child = m_list->selection;
 785         while (child)
 786         {
 787             if (child->data == target->data) return TRUE;
 788             child = child->next;
 789         }
 790     }
 791     wxFAIL_MSG(_T("wrong listbox index"));
 792     return FALSE;
 793 }
 794
 795 void wxListBox::Set( int WXUNUSED(n), const wxString *WXUNUSED(choices) )
 796 {
 797     wxFAIL_MSG(_T("wxListBox::Set not implemented"));
 798 }
 799
 800 void wxListBox::SetFirstItem( int WXUNUSED(n) )
 801 {
 802     wxFAIL_MSG(_T("wxListBox::SetFirstItem not implemented"));
 803 }
 804
 805 void wxListBox::SetFirstItem( const wxString &WXUNUSED(item) )
 806 {
 807     wxFAIL_MSG(_T("wxListBox::SetFirstItem not implemented"));
 808 }
 809
 810 void wxListBox::SetSelection( int n, bool select )
 811 {
 812     wxCHECK_RET( m_list != NULL, _T("invalid listbox") );
 813
 814     DisableEvents();
 815
 816     if (select)
 817         gtk_list_select_item( m_list, n );
 818     else
 819         gtk_list_unselect_item( m_list, n );
 820
 821     EnableEvents();
 822 }
 823
 824 void wxListBox::SetString( int n, const wxString &string )
 825 {
 826     wxCHECK_RET( m_list != NULL, _T("invalid listbox") );
 827
 828     GList *child = g_list_nth( m_list->children, n );
 829     if (child)
 830     {
 831         GtkBin *bin = GTK_BIN( child->data );
 832         GtkLabel *label = GTK_LABEL( bin->child );
 833
 834         wxString str;
 835 #if wxUSE_CHECKLISTBOX
 836         if (m_hasCheckBoxes)
 837             str += CHECKBOX_STRING;
 838 #endif // wxUSE_CHECKLISTBOX
 839         str += string;
 840
 841         gtk_label_set( label, str.mbc_str() );
 842     }
 843     else
 844     {
 845         wxFAIL_MSG(_T("wrong listbox index"));
 846     }
 847 }
 848
 849 void wxListBox::SetStringSelection( const wxString &string, bool select )
 850 {
 851     wxCHECK_RET( m_list != NULL, _T("invalid listbox") );
 852
 853     SetSelection( FindString(string), select );
 854 }
 855
 856 int wxListBox::GetIndex( GtkWidget *item ) const
 857 {
 858     if (item)
 859     {
 860         GList *child = m_list->children;
 861         int count = 0;
 862         while (child)
 863         {
 864             if (GTK_WIDGET(child->data) == item) return count;
 865             count++;
 866             child = child->next;
 867         }
 868     }
 869     return -1;
 870 }
 871
 872 #if wxUSE_TOOLTIPS
 873 void wxListBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
 874 {
 875     GList *child = m_list->children;
 876     while (child)
 877     {
 878         gtk_tooltips_set_tip( tips, GTK_WIDGET( child->data ), wxConvCurrent->cWX2MB(tip), (gchar*) NULL );
 879         child = child->next;
 880     }
 881 }
 882 #endif // wxUSE_TOOLTIPS
 883
 884 #if wxUSE_DRAG_AND_DROP
 885 void wxListBox::SetDropTarget( wxDropTarget *dropTarget )
 886 {
 887     wxCHECK_RET( m_list != NULL, _T("invalid listbox") );
 888
 889 #ifndef NEW_GTK_DND_CODE
 890     if (m_dropTarget)
 891     {
 892         GList *child = m_list->children;
 893         while (child)
 894         {
 895             m_dropTarget->UnregisterWidget( GTK_WIDGET( child->data ) );
 896             child = child->next;
 897         }
 898     }
 899 #endif
 900
 901     wxWindow::SetDropTarget( dropTarget );
 902
 903 #ifndef NEW_GTK_DND_CODE
 904     if (m_dropTarget)
 905     {
 906         GList *child = m_list->children;
 907         while (child)
 908         {
 909             m_dropTarget->RegisterWidget( GTK_WIDGET( child->data ) );
 910             child = child->next;
 911         }
 912     }
 913 #endif
 914 }
 915 #endif
 916
 917 void wxListBox::DisableEvents()
 918 {
 919     GList *child = m_list->children;
 920     while (child)
 921     {
 922         gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
 923           GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 924
 925         if (HasFlag(wxLB_MULTIPLE))
 926             gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
 927               GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 928
 929         child = child->next;
 930     }
 931 }
 932
 933 void wxListBox::EnableEvents()
 934 {
 935     GList *child = m_list->children;
 936     while (child)
 937     {
 938         gtk_signal_connect( GTK_OBJECT(child->data), "select",
 939           GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 940
 941         if (HasFlag(wxLB_MULTIPLE))
 942             gtk_signal_connect( GTK_OBJECT(child->data), "deselect",
 943               GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 944
 945         child = child->next;
 946     }
 947 }
 948
 949 GtkWidget *wxListBox::GetConnectWidget()
 950 {
 951     return GTK_WIDGET(m_list);
 952 }
 953
 954 bool wxListBox::IsOwnGtkWindow( GdkWindow *window )
 955 {
 956     if (wxWindow::IsOwnGtkWindow( window )) return TRUE;
 957
 958     GList *child = m_list->children;
 959     while (child)
 960     {
 961         GtkWidget *bin = GTK_WIDGET( child->data );
 962         if (bin->window == window) return TRUE;
 963         child = child->next;
 964     }
 965
 966     return FALSE;
 967 }
 968
 969 void wxListBox::ApplyWidgetStyle()
 970 {
 971     SetWidgetStyle();
 972
 973     if (m_backgroundColour.Ok())
 974     {
 975         GdkWindow *window = GTK_WIDGET(m_list)->window;
 976         if ( window )
 977         {
 978             m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 979             gdk_window_set_background( window, m_backgroundColour.GetColor() );
 980             gdk_window_clear( window );
 981         }
 982     }
 983
 984     GList *child = m_list->children;
 985     while (child)
 986     {
 987         gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );
 988
 989         GtkBin *bin = GTK_BIN( child->data );
 990         GtkWidget *label = GTK_WIDGET( bin->child );
 991         gtk_widget_set_style( label, m_widgetStyle );
 992
 993         child = child->next;
 994     }
 995 }
 996
 997 #endif