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 #ifdef __VMS
  16 #define gtk_scrolled_window_add_with_viewport gtk_scrolled_window_add_with_vi
  17 #define gtk_container_set_focus_vadjustment gtk_container_set_focus_vadjust
  18 #define gtk_scrolled_window_get_vadjustment gtk_scrolled_window_get_vadjust
  19 #endif
  20
  21 #include "wx/listbox.h"
  22
  23 #if wxUSE_LISTBOX
  24
  25 #include "wx/dynarray.h"
  26 #include "wx/utils.h"
  27 #include "wx/intl.h"
  28 #include "wx/checklst.h"
  29 #include "wx/settings.h"
  30
  31 #if wxUSE_TOOLTIPS
  32 #include "wx/tooltip.h"
  33 #endif
  34
  35 # include <gdk/gdk.h>
  36 #include <gtk/gtk.h>
  37 #include <gdk/gdkkeysyms.h>
  38
  39 //-----------------------------------------------------------------------------
  40 // idle system
  41 //-----------------------------------------------------------------------------
  42
  43 extern void wxapp_install_idle_handler();
  44 extern bool g_isIdle;
  45
  46 //-------------------------------------------------------------------------
  47 // conditional compilation
  48 //-------------------------------------------------------------------------
  49
  50 #if (GTK_MINOR_VERSION > 0)
  51     #define NEW_GTK_SCROLL_CODE
  52 #endif
  53
  54 //-----------------------------------------------------------------------------
  55 // private functions
  56 //-----------------------------------------------------------------------------
  57
  58 #if wxUSE_CHECKLISTBOX
  59
  60 #define CHECKBOX_STRING "[-] "
  61
  62 // checklistboxes have "[±] " prepended to their lables, this macro removes it
  63 // (NB: 4 below is the length of CHECKBOX_STRING above)
  64 //
  65 // the argument to it is a "const char *" pointer
  66 #define GET_REAL_LABEL(label) ((m_hasCheckBoxes)?(label)+4 : (label))
  67
  68 #else // !wxUSE_CHECKLISTBOX
  69
  70 #define GET_REAL_LABEL(label) (label)
  71
  72 #endif // wxUSE_CHECKLISTBOX
  73
  74 //-----------------------------------------------------------------------------
  75 // data
  76 //-----------------------------------------------------------------------------
  77
  78 extern bool       g_blockEventsOnDrag;
  79 extern bool       g_blockEventsOnScroll;
  80 extern wxCursor   g_globalCursor;
  81
  82 static bool       g_hasDoubleClicked = FALSE;
  83
  84 //-----------------------------------------------------------------------------
  85 // "button_release_event"
  86 //-----------------------------------------------------------------------------
  87
  88 /* we would normally emit a wxEVT_COMMAND_LISTBOX_DOUBLECLICKED event once
  89    a GDK_2BUTTON_PRESS occurs, but this has the particular problem of the
  90    listbox keeping the focus until it receives a GDK_BUTTON_RELEASE event.
  91    this can lead to race conditions so that we emit the dclick event
  92    after the GDK_BUTTON_RELEASE event after the GDK_2BUTTON_PRESS event */
  93
  94 static gint
  95 gtk_listbox_button_release_callback( GtkWidget * WXUNUSED(widget),
  96                                      GdkEventButton * WXUNUSED(gdk_event),
  97                                      wxListBox *listbox )
  98 {
  99     if (g_isIdle) wxapp_install_idle_handler();
 100
 101     if (g_blockEventsOnDrag) return FALSE;
 102     if (g_blockEventsOnScroll) return FALSE;
 103
 104     if (!listbox->m_hasVMT) return FALSE;
 105
 106     if (!g_hasDoubleClicked) return FALSE;
 107
 108     wxCommandEvent event( wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, listbox->GetId() );
 109     event.SetEventObject( listbox );
 110
 111     wxArrayInt aSelections;
 112     int n, count = listbox->GetSelections(aSelections);
 113     if ( count > 0 )
 114     {
 115         n = aSelections[0];
 116         if ( listbox->HasClientObjectData() )
 117             event.SetClientObject( listbox->GetClientObject(n) );
 118         else if ( listbox->HasClientUntypedData() )
 119             event.SetClientData( listbox->GetClientData(n) );
 120         event.SetString( listbox->GetString(n) );
 121     }
 122     else
 123     {
 124         n = -1;
 125     }
 126
 127     event.m_commandInt = n;
 128
 129     listbox->GetEventHandler()->ProcessEvent( event );
 130
 131     return FALSE;
 132 }
 133
 134 //-----------------------------------------------------------------------------
 135 // "button_press_event"
 136 //-----------------------------------------------------------------------------
 137
 138 static gint
 139 gtk_listbox_button_press_callback( GtkWidget *widget,
 140                                    GdkEventButton *gdk_event,
 141                                    wxListBox *listbox )
 142 {
 143     if (g_isIdle) wxapp_install_idle_handler();
 144
 145     if (g_blockEventsOnDrag) return FALSE;
 146     if (g_blockEventsOnScroll) return FALSE;
 147
 148     if (!listbox->m_hasVMT) return FALSE;
 149
 150     int sel = listbox->GtkGetIndex( widget );
 151
 152 #if wxUSE_CHECKLISTBOX
 153     if ((listbox->m_hasCheckBoxes) && (gdk_event->x < 15) && (gdk_event->type != GDK_2BUTTON_PRESS))
 154     {
 155         wxCheckListBox *clb = (wxCheckListBox *)listbox;
 156
 157         clb->Check( sel, !clb->IsChecked(sel) );
 158
 159         wxCommandEvent event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 160         event.SetEventObject( listbox );
 161         event.SetInt( sel );
 162         listbox->GetEventHandler()->ProcessEvent( event );
 163     }
 164 #endif // wxUSE_CHECKLISTBOX
 165
 166     /* emit wxEVT_COMMAND_LISTBOX_DOUBLECLICKED later */
 167     g_hasDoubleClicked = (gdk_event->type == GDK_2BUTTON_PRESS);
 168
 169     return FALSE;
 170 }
 171
 172 //-----------------------------------------------------------------------------
 173 // "key_press_event"
 174 //-----------------------------------------------------------------------------
 175
 176 static gint
 177 gtk_listbox_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxListBox *listbox )
 178 {
 179     if (g_isIdle)
 180         wxapp_install_idle_handler();
 181
 182     if (g_blockEventsOnDrag)
 183         return FALSE;
 184
 185     bool ret = FALSE;
 186
 187     if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
 188     {
 189         wxNavigationKeyEvent new_event;
 190         /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 191         new_event.SetDirection( (gdk_event->keyval == GDK_Tab) );
 192         /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 193         new_event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) );
 194         new_event.SetCurrentFocus( listbox );
 195         ret = listbox->GetEventHandler()->ProcessEvent( new_event );
 196     }
 197
 198 #if wxUSE_CHECKLISTBOX
 199     if ((gdk_event->keyval == ' ') && (listbox->m_hasCheckBoxes) && (!ret))
 200     {
 201         int sel = listbox->GtkGetIndex( widget );
 202
 203         wxCheckListBox *clb = (wxCheckListBox *)listbox;
 204
 205         clb->Check( sel, !clb->IsChecked(sel) );
 206
 207         wxCommandEvent new_event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 208         new_event.SetEventObject( listbox );
 209         new_event.SetInt( sel );
 210         ret = listbox->GetEventHandler()->ProcessEvent( new_event );
 211     }
 212 #endif // wxUSE_CHECKLISTBOX
 213
 214     if (ret)
 215     {
 216         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
 217         return TRUE;
 218     }
 219
 220     return FALSE;
 221 }
 222
 223 //-----------------------------------------------------------------------------
 224 // "select" and "deselect"
 225 //-----------------------------------------------------------------------------
 226
 227 static void gtk_listitem_select_callback( GtkWidget *WXUNUSED(widget), wxListBox *listbox );
 228
 229 static void gtk_listitem_deselect_callback( GtkWidget *widget, wxListBox *listbox )
 230 {
 231     gtk_listitem_select_callback( widget, listbox );
 232 }
 233
 234 static void gtk_listitem_select_callback( GtkWidget *WXUNUSED(widget), wxListBox *listbox )
 235 {
 236     if (g_isIdle) wxapp_install_idle_handler();
 237
 238     if (!listbox->m_hasVMT) return;
 239     if (g_blockEventsOnDrag) return;
 240
 241     wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, listbox->GetId() );
 242     event.SetEventObject( listbox );
 243
 244     wxArrayInt aSelections;
 245     int n, count = listbox->GetSelections(aSelections);
 246     if ( count > 0 )
 247     {
 248         n = aSelections[0];
 249         if ( listbox->HasClientObjectData() )
 250             event.SetClientObject( listbox->GetClientObject(n) );
 251         else if ( listbox->HasClientUntypedData() )
 252             event.SetClientData( listbox->GetClientData(n) );
 253         event.SetString( listbox->GetString(n) );
 254     }
 255     else
 256     {
 257         n = -1;
 258     }
 259
 260     event.m_commandInt = n;
 261
 262     listbox->GetEventHandler()->AddPendingEvent( event );
 263 //    listbox->GetEventHandler()->ProcessEvent( event );
 264 }
 265
 266 //-----------------------------------------------------------------------------
 267 // wxListBox
 268 //-----------------------------------------------------------------------------
 269
 270 IMPLEMENT_DYNAMIC_CLASS(wxListBox,wxControl)
 271
 272 // ----------------------------------------------------------------------------
 273 // construction
 274 // ----------------------------------------------------------------------------
 275
 276 wxListBox::wxListBox()
 277 {
 278     m_list = (GtkList *) NULL;
 279 #if wxUSE_CHECKLISTBOX
 280     m_hasCheckBoxes = FALSE;
 281 #endif // wxUSE_CHECKLISTBOX
 282 }
 283
 284 bool wxListBox::Create( wxWindow *parent, wxWindowID id,
 285                         const wxPoint &pos, const wxSize &size,
 286                         int n, const wxString choices[],
 287                         long style, const wxValidator& validator,
 288                         const wxString &name )
 289 {
 290     m_needParent = TRUE;
 291     m_acceptsFocus = TRUE;
 292
 293     if (!PreCreation( parent, pos, size ) ||
 294         !CreateBase( parent, id, pos, size, style, validator, name ))
 295     {
 296         wxFAIL_MSG( wxT("wxListBox creation failed") );
 297         return FALSE;
 298     }
 299
 300     m_widget = gtk_scrolled_window_new( (GtkAdjustment*) NULL, (GtkAdjustment*) NULL );
 301     if (style & wxLB_ALWAYS_SB)
 302     {
 303       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 304         GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS );
 305     }
 306     else
 307     {
 308       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 309         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 310     }
 311
 312     m_list = GTK_LIST( gtk_list_new() );
 313
 314     GtkSelectionMode mode = GTK_SELECTION_BROWSE;
 315     if (style & wxLB_MULTIPLE)
 316         mode = GTK_SELECTION_MULTIPLE;
 317     else if (style & wxLB_EXTENDED)
 318         mode = GTK_SELECTION_EXTENDED;
 319
 320     gtk_list_set_selection_mode( GTK_LIST(m_list), mode );
 321
 322 #ifdef NEW_GTK_SCROLL_CODE
 323     gtk_scrolled_window_add_with_viewport( GTK_SCROLLED_WINDOW(m_widget), GTK_WIDGET(m_list) );
 324 #else
 325     gtk_container_add( GTK_CONTAINER(m_widget), GTK_WIDGET(m_list) );
 326 #endif
 327
 328     /* make list scroll when moving the focus down using cursor keys */
 329     gtk_container_set_focus_vadjustment(
 330         GTK_CONTAINER(m_list),
 331         gtk_scrolled_window_get_vadjustment(
 332             GTK_SCROLLED_WINDOW(m_widget)));
 333
 334     gtk_widget_show( GTK_WIDGET(m_list) );
 335
 336     SetSizeOrDefault( size );
 337
 338     if ( style & wxLB_SORT )
 339     {
 340         // this will change DoAppend() behaviour
 341         m_strings = new wxSortedArrayString;
 342     }
 343     else
 344     {
 345         m_strings = (wxSortedArrayString *)NULL;
 346     }
 347
 348     for (int i = 0; i < n; i++)
 349     {
 350         // add one by one
 351         DoAppend(choices[i]);
 352     }
 353
 354     m_parent->DoAddChild( this );
 355
 356     PostCreation();
 357
 358     SetBackgroundColour( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_LISTBOX ) );
 359     SetForegroundColour( parent->GetForegroundColour() );
 360     SetFont( parent->GetFont() );
 361
 362     Show( TRUE );
 363
 364     return TRUE;
 365 }
 366
 367 wxListBox::~wxListBox()
 368 {
 369     Clear();
 370 }
 371
 372 void wxListBox::DoInsertItems(const wxArrayString& items, int pos)
 373 {
 374     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 375
 376     // VZ: notice that InsertItems knows nothing about sorting, so calling it
 377     //     from outside (and not from our own Append) is likely to break
 378     //     everything
 379
 380     // code elsewhere supposes we have as many items in m_clientList as items
 381     // in the listbox
 382     wxASSERT_MSG( m_clientList.GetCount() == (size_t)GetCount(),
 383                   wxT("bug in client data management") );
 384
 385     GList *children = m_list->children;
 386     int length = g_list_length(children);
 387
 388     wxCHECK_RET( pos <= length, wxT("invalid index in wxListBox::InsertItems") );
 389
 390     size_t nItems = items.GetCount();
 391
 392     if (pos == length)
 393     {
 394         for ( size_t n = 0; n < nItems; n++ )
 395         {
 396             GtkAddItem( items[n] );
 397
 398             m_clientList.Append((wxObject *)NULL);
 399         }
 400     }
 401     else
 402     {
 403         wxNode *node = m_clientList.Nth( pos );
 404         for ( size_t n = 0; n < nItems; n++ )
 405         {
 406             GtkAddItem( items[n], pos+n );
 407
 408             m_clientList.Insert( node, (wxObject *)NULL );
 409         }
 410     }
 411
 412     wxASSERT_MSG( m_clientList.GetCount() == (size_t)GetCount(),
 413                       wxT("bug in client data management") );
 414 }
 415
 416 int wxListBox::DoAppend( const wxString& item )
 417 {
 418     if (m_strings)
 419     {
 420         // need to determine the index
 421         int index = m_strings->Add( item );
 422
 423         // only if not at the end anyway
 424         if (index != GetCount())
 425         {
 426            GtkAddItem( item, index );
 427
 428            wxNode *node = m_clientList.Nth( index );
 429            m_clientList.Insert( node, (wxObject *)NULL );
 430
 431            return index;
 432         }
 433     }
 434
 435     GtkAddItem(item);
 436
 437     m_clientList.Append((wxObject *)NULL);
 438
 439     return GetCount() - 1;
 440 }
 441
 442 void wxListBox::GtkAddItem( const wxString &item, int pos )
 443 {
 444     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 445
 446     GtkWidget *list_item;
 447
 448     wxString label(item);
 449 #if wxUSE_CHECKLISTBOX
 450     if (m_hasCheckBoxes)
 451     {
 452         label.Prepend(CHECKBOX_STRING);
 453     }
 454 #endif // wxUSE_CHECKLISTBOX
 455
 456     list_item = gtk_list_item_new_with_label( label.mbc_str() );
 457
 458     GList *gitem_list = g_list_alloc ();
 459     gitem_list->data = list_item;
 460
 461     if (pos == -1)
 462         gtk_list_append_items( GTK_LIST (m_list), gitem_list );
 463     else
 464         gtk_list_insert_items( GTK_LIST (m_list), gitem_list, pos );
 465
 466     gtk_signal_connect( GTK_OBJECT(list_item), "select",
 467       GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 468
 469     if (HasFlag(wxLB_MULTIPLE))
 470         gtk_signal_connect( GTK_OBJECT(list_item), "deselect",
 471           GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 472
 473     gtk_signal_connect( GTK_OBJECT(list_item),
 474                         "button_press_event",
 475                         (GtkSignalFunc)gtk_listbox_button_press_callback,
 476                         (gpointer) this );
 477
 478     gtk_signal_connect_after( GTK_OBJECT(list_item),
 479                         "button_release_event",
 480                         (GtkSignalFunc)gtk_listbox_button_release_callback,
 481                         (gpointer) this );
 482
 483     gtk_signal_connect( GTK_OBJECT(list_item),
 484                            "key_press_event",
 485                            (GtkSignalFunc)gtk_listbox_key_press_callback,
 486                            (gpointer)this );
 487
 488     ConnectWidget( list_item );
 489
 490     gtk_widget_show( list_item );
 491
 492     if (GTK_WIDGET_REALIZED(m_widget))
 493     {
 494         gtk_widget_realize( list_item );
 495         gtk_widget_realize( GTK_BIN(list_item)->child );
 496
 497         // Apply current widget style to the new list_item
 498         if (m_widgetStyle)
 499         {
 500             gtk_widget_set_style( GTK_WIDGET( list_item ), m_widgetStyle );
 501             GtkBin *bin = GTK_BIN( list_item );
 502             GtkWidget *label = GTK_WIDGET( bin->child );
 503             gtk_widget_set_style( label, m_widgetStyle );
 504         }
 505
 506 #if wxUSE_TOOLTIPS
 507         if (m_tooltip) m_tooltip->Apply( this );
 508 #endif
 509     }
 510 }
 511
 512 void wxListBox::DoSetItems( const wxArrayString& items,
 513                             void **clientData)
 514 {
 515     Clear();
 516
 517     DoInsertItems(items, 0);
 518
 519     if ( clientData )
 520     {
 521         size_t count = items.GetCount();
 522         for ( size_t n = 0; n < count; n++ )
 523         {
 524             SetClientData(n, clientData[n]);
 525         }
 526     }
 527 }
 528
 529 // ----------------------------------------------------------------------------
 530 // client data
 531 // ----------------------------------------------------------------------------
 532
 533 void wxListBox::DoSetItemClientData( int n, void* clientData )
 534 {
 535     wxCHECK_RET( m_widget != NULL, wxT("invalid listbox control") );
 536
 537     wxNode *node = m_clientList.Nth( n );
 538     wxCHECK_RET( node, wxT("invalid index in wxListBox::DoSetItemClientData") );
 539
 540     node->SetData( (wxObject*) clientData );
 541 }
 542
 543 void* wxListBox::DoGetItemClientData( int n ) const
 544 {
 545     wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid listbox control") );
 546
 547     wxNode *node = m_clientList.Nth( n );
 548     wxCHECK_MSG( node, NULL, wxT("invalid index in wxListBox::DoGetItemClientData") );
 549
 550     return node->Data();
 551 }
 552
 553 void wxListBox::DoSetItemClientObject( int n, wxClientData* clientData )
 554 {
 555     wxCHECK_RET( m_widget != NULL, wxT("invalid listbox control") );
 556
 557     wxNode *node = m_clientList.Nth( n );
 558     wxCHECK_RET( node, wxT("invalid index in wxListBox::DoSetItemClientObject") );
 559
 560     wxClientData *cd = (wxClientData*) node->Data();
 561     delete cd;
 562
 563     node->SetData( (wxObject*) clientData );
 564 }
 565
 566 wxClientData* wxListBox::DoGetItemClientObject( int n ) const
 567 {
 568     wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, wxT("invalid listbox control") );
 569
 570     wxNode *node = m_clientList.Nth( n );
 571     wxCHECK_MSG( node, (wxClientData *)NULL,
 572                  wxT("invalid index in wxListBox::DoGetItemClientObject") );
 573
 574     return (wxClientData*) node->Data();
 575 }
 576
 577 void wxListBox::Clear()
 578 {
 579     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 580
 581     gtk_list_clear_items( m_list, 0, Number() );
 582
 583     if ( HasClientObjectData() )
 584     {
 585         // destroy the data (due to Robert's idea of using wxList<wxObject>
 586         // and not wxList<wxClientData> we can't just say
 587         // m_clientList.DeleteContents(TRUE) - this would crash!
 588         wxNode *node = m_clientList.First();
 589         while ( node )
 590         {
 591             delete (wxClientData *)node->Data();
 592             node = node->Next();
 593         }
 594     }
 595     m_clientList.Clear();
 596
 597     if ( m_strings )
 598         m_strings->Clear();
 599 }
 600
 601 void wxListBox::Delete( int n )
 602 {
 603     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 604
 605     GList *child = g_list_nth( m_list->children, n );
 606
 607     wxCHECK_RET( child, wxT("wrong listbox index") );
 608
 609     GList *list = g_list_append( (GList*) NULL, child->data );
 610     gtk_list_remove_items( m_list, list );
 611     g_list_free( list );
 612
 613     wxNode *node = m_clientList.Nth( n );
 614     if ( node )
 615     {
 616         if ( m_clientDataItemsType == ClientData_Object )
 617         {
 618             wxClientData *cd = (wxClientData*)node->Data();
 619             delete cd;
 620         }
 621
 622         m_clientList.DeleteNode( node );
 623     }
 624
 625     if ( m_strings )
 626         m_strings->Remove(n);
 627 }
 628
 629 // ----------------------------------------------------------------------------
 630 // string list access
 631 // ----------------------------------------------------------------------------
 632
 633 void wxListBox::SetString( int n, const wxString &string )
 634 {
 635     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 636
 637     GList *child = g_list_nth( m_list->children, n );
 638     if (child)
 639     {
 640         GtkBin *bin = GTK_BIN( child->data );
 641         GtkLabel *label = GTK_LABEL( bin->child );
 642
 643         wxString str;
 644 #if wxUSE_CHECKLISTBOX
 645         if (m_hasCheckBoxes)
 646             str += CHECKBOX_STRING;
 647 #endif // wxUSE_CHECKLISTBOX
 648         str += string;
 649
 650         gtk_label_set( label, str.mbc_str() );
 651     }
 652     else
 653     {
 654         wxFAIL_MSG(wxT("wrong listbox index"));
 655     }
 656 }
 657
 658 wxString wxListBox::GetString( int n ) const
 659 {
 660     wxCHECK_MSG( m_list != NULL, wxT(""), wxT("invalid listbox") );
 661
 662     GList *child = g_list_nth( m_list->children, n );
 663     if (child)
 664     {
 665         GtkBin *bin = GTK_BIN( child->data );
 666         GtkLabel *label = GTK_LABEL( bin->child );
 667
 668         wxString str = wxString(GET_REAL_LABEL(label->label),*wxConvCurrent);
 669
 670         return str;
 671     }
 672
 673     wxFAIL_MSG(wxT("wrong listbox index"));
 674
 675     return wxT("");
 676 }
 677
 678 int wxListBox::GetCount() const
 679 {
 680     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 681
 682     GList *children = m_list->children;
 683     return g_list_length(children);
 684 }
 685
 686 int wxListBox::FindString( const wxString &item ) const
 687 {
 688     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 689
 690     GList *child = m_list->children;
 691     int count = 0;
 692     while (child)
 693     {
 694         GtkBin *bin = GTK_BIN( child->data );
 695         GtkLabel *label = GTK_LABEL( bin->child );
 696
 697         wxString str = wxString(GET_REAL_LABEL(label->label),*wxConvCurrent);
 698
 699         if (str == item)
 700             return count;
 701
 702         count++;
 703         child = child->next;
 704     }
 705
 706     // it's not an error if the string is not found -> no wxCHECK
 707
 708     return wxNOT_FOUND;
 709 }
 710
 711 // ----------------------------------------------------------------------------
 712 // selection
 713 // ----------------------------------------------------------------------------
 714
 715 int wxListBox::GetSelection() const
 716 {
 717     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 718
 719     GList *child = m_list->children;
 720     int count = 0;
 721     while (child)
 722     {
 723         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED) return count;
 724         count++;
 725         child = child->next;
 726     }
 727     return -1;
 728 }
 729
 730 int wxListBox::GetSelections( wxArrayInt& aSelections ) const
 731 {
 732     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 733
 734     // get the number of selected items first
 735     GList *child = m_list->children;
 736     int count = 0;
 737     for (child = m_list->children; child != NULL; child = child->next)
 738     {
 739         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
 740             count++;
 741     }
 742
 743     aSelections.Empty();
 744
 745     if (count > 0)
 746     {
 747         // now fill the list
 748         aSelections.Alloc(count); // optimization attempt
 749         int i = 0;
 750         for (child = m_list->children; child != NULL; child = child->next, i++)
 751         {
 752             if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
 753                  aSelections.Add(i);
 754         }
 755     }
 756
 757     return count;
 758 }
 759
 760 bool wxListBox::IsSelected( int n ) const
 761 {
 762     wxCHECK_MSG( m_list != NULL, FALSE, wxT("invalid listbox") );
 763
 764     GList *target = g_list_nth( m_list->children, n );
 765
 766     wxCHECK_MSG( target, FALSE, wxT("invalid listbox index") );
 767
 768     return (GTK_WIDGET(target->data)->state == GTK_STATE_SELECTED) ;
 769 }
 770
 771 void wxListBox::SetSelection( int n, bool select )
 772 {
 773     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 774
 775     GtkDisableEvents();
 776
 777     if (select)
 778         gtk_list_select_item( m_list, n );
 779     else
 780         gtk_list_unselect_item( m_list, n );
 781
 782     GtkEnableEvents();
 783 }
 784
 785 void wxListBox::DoSetFirstItem( int WXUNUSED(n) )
 786 {
 787     wxFAIL_MSG(wxT("wxListBox::SetFirstItem not implemented"));
 788 }
 789
 790 // ----------------------------------------------------------------------------
 791 // helpers
 792 // ----------------------------------------------------------------------------
 793
 794 int wxListBox::GtkGetIndex( GtkWidget *item ) const
 795 {
 796     if (item)
 797     {
 798         GList *child = m_list->children;
 799         int count = 0;
 800         while (child)
 801         {
 802             if (GTK_WIDGET(child->data) == item) return count;
 803             count++;
 804             child = child->next;
 805         }
 806     }
 807     return -1;
 808 }
 809
 810 #if wxUSE_TOOLTIPS
 811 void wxListBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
 812 {
 813     GList *child = m_list->children;
 814     while (child)
 815     {
 816         gtk_tooltips_set_tip( tips, GTK_WIDGET( child->data ), wxConvCurrent->cWX2MB(tip), (gchar*) NULL );
 817         child = child->next;
 818     }
 819 }
 820 #endif // wxUSE_TOOLTIPS
 821
 822 void wxListBox::GtkDisableEvents()
 823 {
 824     GList *child = m_list->children;
 825     while (child)
 826     {
 827         gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
 828           GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 829
 830         if (HasFlag(wxLB_MULTIPLE))
 831             gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
 832               GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 833
 834         child = child->next;
 835     }
 836 }
 837
 838 void wxListBox::GtkEnableEvents()
 839 {
 840     GList *child = m_list->children;
 841     while (child)
 842     {
 843         gtk_signal_connect( GTK_OBJECT(child->data), "select",
 844           GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 845
 846         if (HasFlag(wxLB_MULTIPLE))
 847             gtk_signal_connect( GTK_OBJECT(child->data), "deselect",
 848               GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 849
 850         child = child->next;
 851     }
 852 }
 853
 854 GtkWidget *wxListBox::GetConnectWidget()
 855 {
 856     return GTK_WIDGET(m_list);
 857 }
 858
 859 bool wxListBox::IsOwnGtkWindow( GdkWindow *window )
 860 {
 861     if (GTK_WIDGET(m_list)->window == window) return TRUE;
 862
 863     GList *child = m_list->children;
 864     while (child)
 865     {
 866         GtkWidget *bin = GTK_WIDGET( child->data );
 867         if (bin->window == window) return TRUE;
 868         child = child->next;
 869     }
 870
 871     return FALSE;
 872 }
 873
 874 void wxListBox::ApplyWidgetStyle()
 875 {
 876     SetWidgetStyle();
 877
 878     if (m_backgroundColour.Ok())
 879     {
 880         GdkWindow *window = GTK_WIDGET(m_list)->window;
 881         if ( window )
 882         {
 883             m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 884             gdk_window_set_background( window, m_backgroundColour.GetColor() );
 885             gdk_window_clear( window );
 886         }
 887     }
 888
 889     GList *child = m_list->children;
 890     while (child)
 891     {
 892         gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );
 893
 894         GtkBin *bin = GTK_BIN( child->data );
 895         GtkWidget *label = GTK_WIDGET( bin->child );
 896         gtk_widget_set_style( label, m_widgetStyle );
 897
 898         child = child->next;
 899     }
 900 }
 901
 902 void wxListBox::OnInternalIdle()
 903 {
 904     wxCursor cursor = m_cursor;
 905     if (g_globalCursor.Ok()) cursor = g_globalCursor;
 906
 907     if (GTK_WIDGET(m_list)->window && cursor.Ok())
 908     {
 909         /* I now set the cursor the anew in every OnInternalIdle call
 910            as setting the cursor in a parent window also effects the
 911            windows above so that checking for the current cursor is
 912            not possible. */
 913
 914         gdk_window_set_cursor( GTK_WIDGET(m_list)->window, cursor.GetCursor() );
 915
 916         GList *child = m_list->children;
 917         while (child)
 918         {
 919             GtkBin *bin = GTK_BIN( child->data );
 920             GtkWidget *label = GTK_WIDGET( bin->child );
 921
 922             if (!label->window)
 923                 break;
 924             else
 925                 gdk_window_set_cursor( label->window, cursor.GetCursor() );
 926
 927             child = child->next;
 928         }
 929     }
 930
 931     UpdateWindowUI();
 932 }
 933
 934 wxSize wxListBox::DoGetBestSize() const
 935 {
 936     return wxSize(100, 110);
 937 }
 938
 939 #endif