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 #ifdef __VMS__
  30 #define gtk_scrolled_window_add_with_viewport gtk_scrolled_window_add_with_vi
  31 #define gtk_container_set_focus_vadjustment gtk_container_set_focus_vadjust
  32 #define gtk_scrolled_window_get_vadjustment gtk_scrolled_window_get_vadjust
  33 #endif
  34 # include <gdk/gdk.h>
  35 #include <gtk/gtk.h>
  36 #include <gdk/gdkkeysyms.h>
  37
  38 //-----------------------------------------------------------------------------
  39 // idle system
  40 //-----------------------------------------------------------------------------
  41
  42 extern void wxapp_install_idle_handler();
  43 extern bool g_isIdle;
  44
  45 //-------------------------------------------------------------------------
  46 // conditional compilation
  47 //-------------------------------------------------------------------------
  48
  49 #if (GTK_MINOR_VERSION > 0)
  50     #define NEW_GTK_SCROLL_CODE
  51 #endif
  52
  53 //-----------------------------------------------------------------------------
  54 // private functions
  55 //-----------------------------------------------------------------------------
  56
  57 #if wxUSE_CHECKLISTBOX
  58
  59 #define CHECKBOX_STRING "[-] "
  60
  61 // checklistboxes have "[±] " prepended to their lables, this macro removes it
  62 // (NB: 4 below is the length of CHECKBOX_STRING above)
  63 //
  64 // the argument to it is a "const char *" pointer
  65 #define GET_REAL_LABEL(label) ((m_hasCheckBoxes)?(label)+4 : (label))
  66
  67 #else // !wxUSE_CHECKLISTBOX
  68
  69 #define GET_REAL_LABEL(label) (label)
  70
  71 #endif // wxUSE_CHECKLISTBOX
  72
  73 //-----------------------------------------------------------------------------
  74 // data
  75 //-----------------------------------------------------------------------------
  76
  77 extern bool       g_blockEventsOnDrag;
  78 extern bool       g_blockEventsOnScroll;
  79 extern wxCursor   g_globalCursor;
  80
  81 static bool       g_hasDoubleClicked = FALSE;
  82
  83 //-----------------------------------------------------------------------------
  84 // "button_release_event"
  85 //-----------------------------------------------------------------------------
  86
  87 /* we would normally emit a wxEVT_COMMAND_LISTBOX_DOUBLECLICKED event once
  88    a GDK_2BUTTON_PRESS occurs, but this has the particular problem of the
  89    listbox keeping the focus until it receives a GDK_BUTTON_RELEASE event.
  90    this can lead to race conditions so that we emit the dclick event
  91    after the GDK_BUTTON_RELEASE event after the GDK_2BUTTON_PRESS event */
  92
  93 static gint
  94 gtk_listbox_button_release_callback( GtkWidget * WXUNUSED(widget),
  95                                      GdkEventButton * WXUNUSED(gdk_event),
  96                                      wxListBox *listbox )
  97 {
  98     if (g_isIdle) wxapp_install_idle_handler();
  99
 100     if (g_blockEventsOnDrag) return FALSE;
 101     if (g_blockEventsOnScroll) return FALSE;
 102
 103     if (!listbox->m_hasVMT) return FALSE;
 104
 105     if (!g_hasDoubleClicked) return FALSE;
 106
 107     wxCommandEvent event( wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, listbox->GetId() );
 108     event.SetEventObject( listbox );
 109
 110     wxArrayInt aSelections;
 111     int n, count = listbox->GetSelections(aSelections);
 112     if ( count > 0 )
 113     {
 114         n = aSelections[0];
 115         if ( listbox->HasClientObjectData() )
 116             event.SetClientObject( listbox->GetClientObject(n) );
 117         else if ( listbox->HasClientUntypedData() )
 118             event.SetClientData( listbox->GetClientData(n) );
 119         event.SetString( listbox->GetString(n) );
 120     }
 121     else
 122     {
 123         n = -1;
 124     }
 125
 126     event.m_commandInt = n;
 127
 128     listbox->GetEventHandler()->ProcessEvent( event );
 129
 130     return FALSE;
 131 }
 132
 133 //-----------------------------------------------------------------------------
 134 // "button_press_event"
 135 //-----------------------------------------------------------------------------
 136
 137 static gint
 138 gtk_listbox_button_press_callback( GtkWidget *widget,
 139                                    GdkEventButton *gdk_event,
 140                                    wxListBox *listbox )
 141 {
 142     if (g_isIdle) wxapp_install_idle_handler();
 143
 144     if (g_blockEventsOnDrag) return FALSE;
 145     if (g_blockEventsOnScroll) return FALSE;
 146
 147     if (!listbox->m_hasVMT) return FALSE;
 148
 149     int sel = listbox->GtkGetIndex( widget );
 150
 151 #if wxUSE_CHECKLISTBOX
 152     if ((listbox->m_hasCheckBoxes) && (gdk_event->x < 15) && (gdk_event->type != GDK_2BUTTON_PRESS))
 153     {
 154         wxCheckListBox *clb = (wxCheckListBox *)listbox;
 155
 156         clb->Check( sel, !clb->IsChecked(sel) );
 157
 158         wxCommandEvent event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 159         event.SetEventObject( listbox );
 160         event.SetInt( sel );
 161         listbox->GetEventHandler()->ProcessEvent( event );
 162     }
 163 #endif // wxUSE_CHECKLISTBOX
 164
 165     /* emit wxEVT_COMMAND_LISTBOX_DOUBLECLICKED later */
 166     g_hasDoubleClicked = (gdk_event->type == GDK_2BUTTON_PRESS);
 167
 168     return FALSE;
 169 }
 170
 171 //-----------------------------------------------------------------------------
 172 // "key_press_event"
 173 //-----------------------------------------------------------------------------
 174
 175 static gint
 176 gtk_listbox_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxListBox *listbox )
 177 {
 178     if (g_isIdle)
 179         wxapp_install_idle_handler();
 180
 181     if (g_blockEventsOnDrag)
 182         return FALSE;
 183
 184     bool ret = FALSE;
 185
 186     if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
 187     {
 188         wxNavigationKeyEvent new_event;
 189         /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 190         new_event.SetDirection( (gdk_event->keyval == GDK_Tab) );
 191         /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 192         new_event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) );
 193         new_event.SetCurrentFocus( listbox );
 194         ret = listbox->GetEventHandler()->ProcessEvent( new_event );
 195     }
 196
 197 #if wxUSE_CHECKLISTBOX
 198     if ((gdk_event->keyval == ' ') && (listbox->m_hasCheckBoxes) && (!ret))
 199     {
 200         int sel = listbox->GtkGetIndex( widget );
 201
 202         wxCheckListBox *clb = (wxCheckListBox *)listbox;
 203
 204         clb->Check( sel, !clb->IsChecked(sel) );
 205
 206         wxCommandEvent new_event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 207         new_event.SetEventObject( listbox );
 208         new_event.SetInt( sel );
 209         ret = listbox->GetEventHandler()->ProcessEvent( new_event );
 210     }
 211 #endif // wxUSE_CHECKLISTBOX
 212
 213     if (ret)
 214     {
 215         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
 216         return TRUE;
 217     }
 218
 219     return FALSE;
 220 }
 221
 222 //-----------------------------------------------------------------------------
 223 // "select" and "deselect"
 224 //-----------------------------------------------------------------------------
 225
 226 static void gtk_listitem_select_callback( GtkWidget *WXUNUSED(widget), wxListBox *listbox );
 227
 228 static void gtk_listitem_deselect_callback( GtkWidget *widget, wxListBox *listbox )
 229 {
 230     gtk_listitem_select_callback( widget, listbox );
 231 }
 232
 233 static void gtk_listitem_select_callback( GtkWidget *WXUNUSED(widget), wxListBox *listbox )
 234 {
 235     if (g_isIdle) wxapp_install_idle_handler();
 236
 237     if (!listbox->m_hasVMT) return;
 238     if (g_blockEventsOnDrag) return;
 239
 240     wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, listbox->GetId() );
 241     event.SetEventObject( listbox );
 242
 243     wxArrayInt aSelections;
 244     int n, count = listbox->GetSelections(aSelections);
 245     if ( count > 0 )
 246     {
 247         n = aSelections[0];
 248         if ( listbox->HasClientObjectData() )
 249             event.SetClientObject( listbox->GetClientObject(n) );
 250         else if ( listbox->HasClientUntypedData() )
 251             event.SetClientData( listbox->GetClientData(n) );
 252         event.SetString( listbox->GetString(n) );
 253     }
 254     else
 255     {
 256         n = -1;
 257     }
 258
 259     event.m_commandInt = n;
 260
 261     listbox->GetEventHandler()->AddPendingEvent( event );
 262 //    listbox->GetEventHandler()->ProcessEvent( event );
 263 }
 264
 265 //-----------------------------------------------------------------------------
 266 // wxListBox
 267 //-----------------------------------------------------------------------------
 268
 269 IMPLEMENT_DYNAMIC_CLASS(wxListBox,wxControl)
 270
 271 // ----------------------------------------------------------------------------
 272 // construction
 273 // ----------------------------------------------------------------------------
 274
 275 wxListBox::wxListBox()
 276 {
 277     m_list = (GtkList *) NULL;
 278 #if wxUSE_CHECKLISTBOX
 279     m_hasCheckBoxes = FALSE;
 280 #endif // wxUSE_CHECKLISTBOX
 281 }
 282
 283 bool wxListBox::Create( wxWindow *parent, wxWindowID id,
 284                         const wxPoint &pos, const wxSize &size,
 285                         int n, const wxString choices[],
 286                         long style, const wxValidator& validator,
 287                         const wxString &name )
 288 {
 289     m_needParent = TRUE;
 290     m_acceptsFocus = TRUE;
 291
 292     if (!PreCreation( parent, pos, size ) ||
 293         !CreateBase( parent, id, pos, size, style, validator, name ))
 294     {
 295         wxFAIL_MSG( wxT("wxListBox creation failed") );
 296         return FALSE;
 297     }
 298
 299     m_widget = gtk_scrolled_window_new( (GtkAdjustment*) NULL, (GtkAdjustment*) NULL );
 300     if (style & wxLB_ALWAYS_SB)
 301     {
 302       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 303         GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS );
 304     }
 305     else
 306     {
 307       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 308         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 309     }
 310
 311     m_list = GTK_LIST( gtk_list_new() );
 312
 313     GtkSelectionMode mode = GTK_SELECTION_BROWSE;
 314     if (style & wxLB_MULTIPLE)
 315         mode = GTK_SELECTION_MULTIPLE;
 316     else if (style & wxLB_EXTENDED)
 317         mode = GTK_SELECTION_EXTENDED;
 318
 319     gtk_list_set_selection_mode( GTK_LIST(m_list), mode );
 320
 321 #ifdef NEW_GTK_SCROLL_CODE
 322     gtk_scrolled_window_add_with_viewport( GTK_SCROLLED_WINDOW(m_widget), GTK_WIDGET(m_list) );
 323 #else
 324     gtk_container_add( GTK_CONTAINER(m_widget), GTK_WIDGET(m_list) );
 325 #endif
 326
 327     /* make list scroll when moving the focus down using cursor keys */
 328     gtk_container_set_focus_vadjustment(
 329         GTK_CONTAINER(m_list),
 330         gtk_scrolled_window_get_vadjustment(
 331             GTK_SCROLLED_WINDOW(m_widget)));
 332
 333     gtk_widget_show( GTK_WIDGET(m_list) );
 334
 335     SetSizeOrDefault( size );
 336
 337     if ( style & wxLB_SORT )
 338     {
 339         // this will change DoAppend() behaviour
 340         m_strings = new wxSortedArrayString;
 341     }
 342     else
 343     {
 344         m_strings = (wxSortedArrayString *)NULL;
 345     }
 346
 347     for (int i = 0; i < n; i++)
 348     {
 349         // add one by one
 350         DoAppend(choices[i]);
 351     }
 352
 353     m_parent->DoAddChild( this );
 354
 355     PostCreation();
 356
 357     SetBackgroundColour( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_LISTBOX ) );
 358     SetForegroundColour( parent->GetForegroundColour() );
 359     SetFont( parent->GetFont() );
 360
 361     Show( TRUE );
 362
 363     return TRUE;
 364 }
 365
 366 wxListBox::~wxListBox()
 367 {
 368     Clear();
 369 }
 370
 371 void wxListBox::DoInsertItems(const wxArrayString& items, int pos)
 372 {
 373     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 374
 375     // VZ: notice that InsertItems knows nothing about sorting, so calling it
 376     //     from outside (and not from our own Append) is likely to break
 377     //     everything
 378
 379     // code elsewhere supposes we have as many items in m_clientList as items
 380     // in the listbox
 381     wxASSERT_MSG( m_clientList.GetCount() == (size_t)GetCount(),
 382                   wxT("bug in client data management") );
 383
 384     GList *children = m_list->children;
 385     int length = g_list_length(children);
 386
 387     wxCHECK_RET( pos <= length, wxT("invalid index in wxListBox::InsertItems") );
 388
 389     size_t nItems = items.GetCount();
 390
 391     if (pos == length)
 392     {
 393         for ( size_t n = 0; n < nItems; n++ )
 394         {
 395             GtkAddItem( items[n] );
 396
 397             m_clientList.Append((wxObject *)NULL);
 398         }
 399     }
 400     else
 401     {
 402         wxNode *node = m_clientList.Nth( pos );
 403         for ( size_t n = 0; n < nItems; n++ )
 404         {
 405             GtkAddItem( items[n], pos+n );
 406
 407             m_clientList.Insert( node, (wxObject *)NULL );
 408         }
 409     }
 410
 411     wxASSERT_MSG( m_clientList.GetCount() == (size_t)GetCount(),
 412                       wxT("bug in client data management") );
 413 }
 414
 415 int wxListBox::DoAppend( const wxString& item )
 416 {
 417     if (m_strings)
 418     {
 419         // need to determine the index
 420         int index = m_strings->Add( item );
 421
 422         // only if not at the end anyway
 423         if (index != GetCount())
 424         {
 425            GtkAddItem( item, index );
 426
 427            wxNode *node = m_clientList.Nth( index );
 428            m_clientList.Insert( node, (wxObject *)NULL );
 429
 430            return index;
 431         }
 432     }
 433
 434     GtkAddItem(item);
 435
 436     m_clientList.Append((wxObject *)NULL);
 437
 438     return GetCount() - 1;
 439 }
 440
 441 void wxListBox::GtkAddItem( const wxString &item, int pos )
 442 {
 443     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 444
 445     GtkWidget *list_item;
 446
 447     wxString label(item);
 448 #if wxUSE_CHECKLISTBOX
 449     if (m_hasCheckBoxes)
 450     {
 451         label.Prepend(CHECKBOX_STRING);
 452     }
 453 #endif // wxUSE_CHECKLISTBOX
 454
 455     list_item = gtk_list_item_new_with_label( label.mbc_str() );
 456
 457     GList *gitem_list = g_list_alloc ();
 458     gitem_list->data = list_item;
 459
 460     if (pos == -1)
 461         gtk_list_append_items( GTK_LIST (m_list), gitem_list );
 462     else
 463         gtk_list_insert_items( GTK_LIST (m_list), gitem_list, pos );
 464
 465     gtk_signal_connect( GTK_OBJECT(list_item), "select",
 466       GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 467
 468     if (HasFlag(wxLB_MULTIPLE))
 469         gtk_signal_connect( GTK_OBJECT(list_item), "deselect",
 470           GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 471
 472     gtk_signal_connect( GTK_OBJECT(list_item),
 473                         "button_press_event",
 474                         (GtkSignalFunc)gtk_listbox_button_press_callback,
 475                         (gpointer) this );
 476
 477     gtk_signal_connect_after( GTK_OBJECT(list_item),
 478                         "button_release_event",
 479                         (GtkSignalFunc)gtk_listbox_button_release_callback,
 480                         (gpointer) this );
 481
 482     gtk_signal_connect( GTK_OBJECT(list_item),
 483                            "key_press_event",
 484                            (GtkSignalFunc)gtk_listbox_key_press_callback,
 485                            (gpointer)this );
 486
 487     ConnectWidget( list_item );
 488
 489     gtk_widget_show( list_item );
 490
 491     if (GTK_WIDGET_REALIZED(m_widget))
 492     {
 493         gtk_widget_realize( list_item );
 494         gtk_widget_realize( GTK_BIN(list_item)->child );
 495
 496         // Apply current widget style to the new list_item
 497         if (m_widgetStyle)
 498         {
 499             gtk_widget_set_style( GTK_WIDGET( list_item ), m_widgetStyle );
 500             GtkBin *bin = GTK_BIN( list_item );
 501             GtkWidget *label = GTK_WIDGET( bin->child );
 502             gtk_widget_set_style( label, m_widgetStyle );
 503         }
 504
 505 #if wxUSE_TOOLTIPS
 506         if (m_tooltip) m_tooltip->Apply( this );
 507 #endif
 508     }
 509 }
 510
 511 void wxListBox::DoSetItems( const wxArrayString& items,
 512                             void **clientData)
 513 {
 514     Clear();
 515
 516     DoInsertItems(items, 0);
 517
 518     if ( clientData )
 519     {
 520         size_t count = items.GetCount();
 521         for ( size_t n = 0; n < count; n++ )
 522         {
 523             SetClientData(n, clientData[n]);
 524         }
 525     }
 526 }
 527
 528 // ----------------------------------------------------------------------------
 529 // client data
 530 // ----------------------------------------------------------------------------
 531
 532 void wxListBox::DoSetItemClientData( int n, void* clientData )
 533 {
 534     wxCHECK_RET( m_widget != NULL, wxT("invalid listbox control") );
 535
 536     wxNode *node = m_clientList.Nth( n );
 537     wxCHECK_RET( node, wxT("invalid index in wxListBox::DoSetItemClientData") );
 538
 539     node->SetData( (wxObject*) clientData );
 540 }
 541
 542 void* wxListBox::DoGetItemClientData( int n ) const
 543 {
 544     wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid listbox control") );
 545
 546     wxNode *node = m_clientList.Nth( n );
 547     wxCHECK_MSG( node, NULL, wxT("invalid index in wxListBox::DoGetItemClientData") );
 548
 549     return node->Data();
 550 }
 551
 552 void wxListBox::DoSetItemClientObject( int n, wxClientData* clientData )
 553 {
 554     wxCHECK_RET( m_widget != NULL, wxT("invalid listbox control") );
 555
 556     wxNode *node = m_clientList.Nth( n );
 557     wxCHECK_RET( node, wxT("invalid index in wxListBox::DoSetItemClientObject") );
 558
 559     wxClientData *cd = (wxClientData*) node->Data();
 560     delete cd;
 561
 562     node->SetData( (wxObject*) clientData );
 563 }
 564
 565 wxClientData* wxListBox::DoGetItemClientObject( int n ) const
 566 {
 567     wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, wxT("invalid listbox control") );
 568
 569     wxNode *node = m_clientList.Nth( n );
 570     wxCHECK_MSG( node, (wxClientData *)NULL,
 571                  wxT("invalid index in wxListBox::DoGetItemClientObject") );
 572
 573     return (wxClientData*) node->Data();
 574 }
 575
 576 void wxListBox::Clear()
 577 {
 578     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 579
 580     gtk_list_clear_items( m_list, 0, Number() );
 581
 582     if ( HasClientObjectData() )
 583     {
 584         // destroy the data (due to Robert's idea of using wxList<wxObject>
 585         // and not wxList<wxClientData> we can't just say
 586         // m_clientList.DeleteContents(TRUE) - this would crash!
 587         wxNode *node = m_clientList.First();
 588         while ( node )
 589         {
 590             delete (wxClientData *)node->Data();
 591             node = node->Next();
 592         }
 593     }
 594     m_clientList.Clear();
 595
 596     if ( m_strings )
 597         m_strings->Clear();
 598 }
 599
 600 void wxListBox::Delete( int n )
 601 {
 602     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 603
 604     GList *child = g_list_nth( m_list->children, n );
 605
 606     wxCHECK_RET( child, wxT("wrong listbox index") );
 607
 608     GList *list = g_list_append( (GList*) NULL, child->data );
 609     gtk_list_remove_items( m_list, list );
 610     g_list_free( list );
 611
 612     wxNode *node = m_clientList.Nth( n );
 613     if ( node )
 614     {
 615         if ( m_clientDataItemsType == ClientData_Object )
 616         {
 617             wxClientData *cd = (wxClientData*)node->Data();
 618             delete cd;
 619         }
 620
 621         m_clientList.DeleteNode( node );
 622     }
 623
 624     if ( m_strings )
 625         m_strings->Remove(n);
 626 }
 627
 628 // ----------------------------------------------------------------------------
 629 // string list access
 630 // ----------------------------------------------------------------------------
 631
 632 void wxListBox::SetString( int n, const wxString &string )
 633 {
 634     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 635
 636     GList *child = g_list_nth( m_list->children, n );
 637     if (child)
 638     {
 639         GtkBin *bin = GTK_BIN( child->data );
 640         GtkLabel *label = GTK_LABEL( bin->child );
 641
 642         wxString str;
 643 #if wxUSE_CHECKLISTBOX
 644         if (m_hasCheckBoxes)
 645             str += CHECKBOX_STRING;
 646 #endif // wxUSE_CHECKLISTBOX
 647         str += string;
 648
 649         gtk_label_set( label, str.mbc_str() );
 650     }
 651     else
 652     {
 653         wxFAIL_MSG(wxT("wrong listbox index"));
 654     }
 655 }
 656
 657 wxString wxListBox::GetString( int n ) const
 658 {
 659     wxCHECK_MSG( m_list != NULL, wxT(""), wxT("invalid listbox") );
 660
 661     GList *child = g_list_nth( m_list->children, n );
 662     if (child)
 663     {
 664         GtkBin *bin = GTK_BIN( child->data );
 665         GtkLabel *label = GTK_LABEL( bin->child );
 666
 667         wxString str = wxString(GET_REAL_LABEL(label->label),*wxConvCurrent);
 668
 669         return str;
 670     }
 671
 672     wxFAIL_MSG(wxT("wrong listbox index"));
 673
 674     return wxT("");
 675 }
 676
 677 int wxListBox::GetCount() const
 678 {
 679     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 680
 681     GList *children = m_list->children;
 682     return g_list_length(children);
 683 }
 684
 685 int wxListBox::FindString( const wxString &item ) const
 686 {
 687     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 688
 689     GList *child = m_list->children;
 690     int count = 0;
 691     while (child)
 692     {
 693         GtkBin *bin = GTK_BIN( child->data );
 694         GtkLabel *label = GTK_LABEL( bin->child );
 695
 696         wxString str = wxString(GET_REAL_LABEL(label->label),*wxConvCurrent);
 697
 698         if (str == item)
 699             return count;
 700
 701         count++;
 702         child = child->next;
 703     }
 704
 705     // it's not an error if the string is not found -> no wxCHECK
 706
 707     return wxNOT_FOUND;
 708 }
 709
 710 // ----------------------------------------------------------------------------
 711 // selection
 712 // ----------------------------------------------------------------------------
 713
 714 int wxListBox::GetSelection() const
 715 {
 716     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 717
 718     GList *child = m_list->children;
 719     int count = 0;
 720     while (child)
 721     {
 722         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED) return count;
 723         count++;
 724         child = child->next;
 725     }
 726     return -1;
 727 }
 728
 729 int wxListBox::GetSelections( wxArrayInt& aSelections ) const
 730 {
 731     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 732
 733     // get the number of selected items first
 734     GList *child = m_list->children;
 735     int count = 0;
 736     for (child = m_list->children; child != NULL; child = child->next)
 737     {
 738         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
 739             count++;
 740     }
 741
 742     aSelections.Empty();
 743
 744     if (count > 0)
 745     {
 746         // now fill the list
 747         aSelections.Alloc(count); // optimization attempt
 748         int i = 0;
 749         for (child = m_list->children; child != NULL; child = child->next, i++)
 750         {
 751             if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
 752                  aSelections.Add(i);
 753         }
 754     }
 755
 756     return count;
 757 }
 758
 759 bool wxListBox::IsSelected( int n ) const
 760 {
 761     wxCHECK_MSG( m_list != NULL, FALSE, wxT("invalid listbox") );
 762
 763     GList *target = g_list_nth( m_list->children, n );
 764
 765     wxCHECK_MSG( target, FALSE, wxT("invalid listbox index") );
 766
 767     return (GTK_WIDGET(target->data)->state == GTK_STATE_SELECTED) ;
 768 }
 769
 770 void wxListBox::SetSelection( int n, bool select )
 771 {
 772     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 773
 774     GtkDisableEvents();
 775
 776     if (select)
 777         gtk_list_select_item( m_list, n );
 778     else
 779         gtk_list_unselect_item( m_list, n );
 780
 781     GtkEnableEvents();
 782 }
 783
 784 void wxListBox::DoSetFirstItem( int WXUNUSED(n) )
 785 {
 786     wxFAIL_MSG(wxT("wxListBox::SetFirstItem not implemented"));
 787 }
 788
 789 // ----------------------------------------------------------------------------
 790 // helpers
 791 // ----------------------------------------------------------------------------
 792
 793 int wxListBox::GtkGetIndex( GtkWidget *item ) const
 794 {
 795     if (item)
 796     {
 797         GList *child = m_list->children;
 798         int count = 0;
 799         while (child)
 800         {
 801             if (GTK_WIDGET(child->data) == item) return count;
 802             count++;
 803             child = child->next;
 804         }
 805     }
 806     return -1;
 807 }
 808
 809 #if wxUSE_TOOLTIPS
 810 void wxListBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
 811 {
 812     GList *child = m_list->children;
 813     while (child)
 814     {
 815         gtk_tooltips_set_tip( tips, GTK_WIDGET( child->data ), wxConvCurrent->cWX2MB(tip), (gchar*) NULL );
 816         child = child->next;
 817     }
 818 }
 819 #endif // wxUSE_TOOLTIPS
 820
 821 void wxListBox::GtkDisableEvents()
 822 {
 823     GList *child = m_list->children;
 824     while (child)
 825     {
 826         gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
 827           GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 828
 829         if (HasFlag(wxLB_MULTIPLE))
 830             gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
 831               GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 832
 833         child = child->next;
 834     }
 835 }
 836
 837 void wxListBox::GtkEnableEvents()
 838 {
 839     GList *child = m_list->children;
 840     while (child)
 841     {
 842         gtk_signal_connect( GTK_OBJECT(child->data), "select",
 843           GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 844
 845         if (HasFlag(wxLB_MULTIPLE))
 846             gtk_signal_connect( GTK_OBJECT(child->data), "deselect",
 847               GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 848
 849         child = child->next;
 850     }
 851 }
 852
 853 GtkWidget *wxListBox::GetConnectWidget()
 854 {
 855     return GTK_WIDGET(m_list);
 856 }
 857
 858 bool wxListBox::IsOwnGtkWindow( GdkWindow *window )
 859 {
 860     if (GTK_WIDGET(m_list)->window == window) return TRUE;
 861
 862     GList *child = m_list->children;
 863     while (child)
 864     {
 865         GtkWidget *bin = GTK_WIDGET( child->data );
 866         if (bin->window == window) return TRUE;
 867         child = child->next;
 868     }
 869
 870     return FALSE;
 871 }
 872
 873 void wxListBox::ApplyWidgetStyle()
 874 {
 875     SetWidgetStyle();
 876
 877     if (m_backgroundColour.Ok())
 878     {
 879         GdkWindow *window = GTK_WIDGET(m_list)->window;
 880         if ( window )
 881         {
 882             m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 883             gdk_window_set_background( window, m_backgroundColour.GetColor() );
 884             gdk_window_clear( window );
 885         }
 886     }
 887
 888     GList *child = m_list->children;
 889     while (child)
 890     {
 891         gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );
 892
 893         GtkBin *bin = GTK_BIN( child->data );
 894         GtkWidget *label = GTK_WIDGET( bin->child );
 895         gtk_widget_set_style( label, m_widgetStyle );
 896
 897         child = child->next;
 898     }
 899 }
 900
 901 void wxListBox::OnInternalIdle()
 902 {
 903     wxCursor cursor = m_cursor;
 904     if (g_globalCursor.Ok()) cursor = g_globalCursor;
 905
 906     if (GTK_WIDGET(m_list)->window && cursor.Ok())
 907     {
 908         /* I now set the cursor the anew in every OnInternalIdle call
 909            as setting the cursor in a parent window also effects the
 910            windows above so that checking for the current cursor is
 911            not possible. */
 912
 913         gdk_window_set_cursor( GTK_WIDGET(m_list)->window, cursor.GetCursor() );
 914
 915         GList *child = m_list->children;
 916         while (child)
 917         {
 918             GtkBin *bin = GTK_BIN( child->data );
 919             GtkWidget *label = GTK_WIDGET( bin->child );
 920
 921             if (!label->window)
 922                 break;
 923             else
 924                 gdk_window_set_cursor( label->window, cursor.GetCursor() );
 925
 926             child = child->next;
 927         }
 928     }
 929
 930     UpdateWindowUI();
 931 }
 932
 933 wxSize wxListBox::DoGetBestSize() const
 934 {
 935     return wxSize(100, 110);
 936 }
 937
 938 #endif