src/gtk1/listbox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk1/listbox.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #if wxUSE_LISTBOX
  14
  15 #include "wx/listbox.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/dynarray.h"
  19     #include "wx/intl.h"
  20     #include "wx/utils.h"
  21     #include "wx/settings.h"
  22     #include "wx/checklst.h"
  23     #include "wx/arrstr.h"
  24 #endif
  25
  26 #include "wx/gtk1/private.h"
  27
  28 #if wxUSE_TOOLTIPS
  29     #include "wx/tooltip.h"
  30 #endif
  31
  32 #include <gdk/gdk.h>
  33 #include <gtk/gtk.h>
  34 #include <gdk/gdkkeysyms.h>
  35
  36 //-----------------------------------------------------------------------------
  37 // idle system
  38 //-----------------------------------------------------------------------------
  39
  40 extern void wxapp_install_idle_handler();
  41 extern bool g_isIdle;
  42
  43 //-----------------------------------------------------------------------------
  44 // data
  45 //-----------------------------------------------------------------------------
  46
  47 extern bool           g_blockEventsOnDrag;
  48 extern bool           g_blockEventsOnScroll;
  49 extern wxCursor       g_globalCursor;
  50 extern wxWindowGTK   *g_delayedFocus;
  51 extern wxWindowGTK   *g_focusWindow;
  52 extern wxWindowGTK   *g_focusWindowLast;
  53
  54 static bool       g_hasDoubleClicked = false;
  55
  56 //-----------------------------------------------------------------------------
  57 // idle callback for SetFirstItem
  58 //-----------------------------------------------------------------------------
  59
  60 struct wxlistbox_idle_struct
  61 {
  62     wxListBox   *m_listbox;
  63     int          m_item;
  64     gint         m_tag;
  65 };
  66
  67 extern "C" {
  68 static gint wxlistbox_idle_callback( gpointer gdata )
  69 {
  70     wxlistbox_idle_struct* data = (wxlistbox_idle_struct*) gdata;
  71     gdk_threads_enter();
  72
  73     gtk_idle_remove( data->m_tag );
  74
  75     // check that the items haven't been deleted from the listbox since we had
  76     // installed this callback
  77     wxListBox *lbox = data->m_listbox;
  78     if ( data->m_item < (int)lbox->GetCount() )
  79     {
  80         lbox->SetFirstItem( data->m_item );
  81     }
  82
  83     delete data;
  84
  85     gdk_threads_leave();
  86
  87     return TRUE;
  88 }
  89 }
  90
  91 //-----------------------------------------------------------------------------
  92 // "focus_in_event"
  93 //-----------------------------------------------------------------------------
  94
  95 extern "C" {
  96 static gint gtk_listitem_focus_in_callback( GtkWidget *widget,
  97                                           GdkEvent *WXUNUSED(event),
  98                                           wxWindow *win )
  99 {
 100     if (g_isIdle)
 101         wxapp_install_idle_handler();
 102
 103     g_focusWindowLast =
 104     g_focusWindow = win;
 105
 106     // does the window itself think that it has the focus?
 107     if ( !win->m_hasFocus )
 108     {
 109         // not yet, notify it
 110         win->m_hasFocus = true;
 111
 112         wxChildFocusEvent eventChildFocus(win);
 113         (void)win->GetEventHandler()->ProcessEvent(eventChildFocus);
 114
 115         wxFocusEvent eventFocus(wxEVT_SET_FOCUS, win->GetId());
 116         eventFocus.SetEventObject(win);
 117
 118         (void)win->GetEventHandler()->ProcessEvent(eventFocus);
 119     }
 120
 121     return FALSE;
 122 }
 123 }
 124
 125 //-----------------------------------------------------------------------------
 126 // "focus_out_event"
 127 //-----------------------------------------------------------------------------
 128
 129 extern "C" {
 130 static gint gtk_listitem_focus_out_callback( GtkWidget *widget, GdkEventFocus *gdk_event, wxWindowGTK *win )
 131 {
 132     if (g_isIdle)
 133         wxapp_install_idle_handler();
 134
 135     g_focusWindow = (wxWindowGTK *)NULL;
 136
 137     // don't send the window a kill focus event if it thinks that it doesn't
 138     // have focus already
 139     if ( win->m_hasFocus )
 140     {
 141         win->m_hasFocus = false;
 142
 143         wxFocusEvent event( wxEVT_KILL_FOCUS, win->GetId() );
 144         event.SetEventObject( win );
 145
 146         // even if we did process the event in wx code, still let GTK itself
 147         // process it too as otherwise bad things happen, especially in GTK2
 148         // where the text control simply aborts the program if it doesn't get
 149         // the matching focus out event
 150         (void)win->GetEventHandler()->ProcessEvent( event );
 151     }
 152
 153     return FALSE;
 154 }
 155 }
 156
 157 //-----------------------------------------------------------------------------
 158 // "button_release_event"
 159 //-----------------------------------------------------------------------------
 160
 161 /* we would normally emit a wxEVT_COMMAND_LISTBOX_DOUBLECLICKED event once
 162    a GDK_2BUTTON_PRESS occurs, but this has the particular problem of the
 163    listbox keeping the focus until it receives a GDK_BUTTON_RELEASE event.
 164    this can lead to race conditions so that we emit the dclick event
 165    after the GDK_BUTTON_RELEASE event after the GDK_2BUTTON_PRESS event */
 166
 167 extern "C" {
 168 static gint
 169 gtk_listbox_button_release_callback( GtkWidget * WXUNUSED(widget),
 170                                      GdkEventButton * WXUNUSED(gdk_event),
 171                                      wxListBox *listbox )
 172 {
 173     if (g_isIdle) wxapp_install_idle_handler();
 174
 175     if (g_blockEventsOnDrag) return FALSE;
 176     if (g_blockEventsOnScroll) return FALSE;
 177
 178     if (!listbox->m_hasVMT) return FALSE;
 179
 180     if (!g_hasDoubleClicked) return FALSE;
 181
 182     wxCommandEvent event( wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, listbox->GetId() );
 183     event.SetEventObject( listbox );
 184
 185     wxArrayInt aSelections;
 186     int n, count = listbox->GetSelections(aSelections);
 187     if ( count > 0 )
 188     {
 189         n = aSelections[0];
 190         if ( listbox->HasClientObjectData() )
 191             event.SetClientObject( listbox->GetClientObject(n) );
 192         else if ( listbox->HasClientUntypedData() )
 193             event.SetClientData( listbox->GetClientData(n) );
 194         event.SetString( listbox->GetString(n) );
 195     }
 196     else
 197     {
 198         n = -1;
 199     }
 200
 201     event.SetInt(n);
 202
 203     listbox->GetEventHandler()->ProcessEvent( event );
 204
 205     return FALSE;
 206 }
 207 }
 208
 209 //-----------------------------------------------------------------------------
 210 // "button_press_event"
 211 //-----------------------------------------------------------------------------
 212
 213 extern "C" {
 214 static gint
 215 gtk_listbox_button_press_callback( GtkWidget *widget,
 216                                    GdkEventButton *gdk_event,
 217                                    wxListBox *listbox )
 218 {
 219     if (g_isIdle) wxapp_install_idle_handler();
 220
 221     if (g_blockEventsOnDrag) return FALSE;
 222     if (g_blockEventsOnScroll) return FALSE;
 223
 224     if (!listbox->m_hasVMT) return FALSE;
 225
 226     int sel = listbox->GtkGetIndex( widget );
 227
 228 #if wxUSE_CHECKLISTBOX
 229     if ((listbox->m_hasCheckBoxes) && (gdk_event->x < 15) && (gdk_event->type != GDK_2BUTTON_PRESS))
 230     {
 231         wxCheckListBox *clb = (wxCheckListBox *)listbox;
 232
 233         clb->Check( sel, !clb->IsChecked(sel) );
 234
 235         wxCommandEvent event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 236         event.SetEventObject( listbox );
 237         event.SetInt( sel );
 238         listbox->GetEventHandler()->ProcessEvent( event );
 239     }
 240 #endif // wxUSE_CHECKLISTBOX
 241
 242     if ((gdk_event->state == 0) &&
 243          (((listbox->GetWindowStyleFlag() & wxLB_MULTIPLE) != 0) ||
 244           ((listbox->GetWindowStyleFlag() & wxLB_EXTENDED) != 0)) )
 245     {
 246             listbox->m_blockEvent = true;
 247
 248             int i;
 249             for (i = 0; i < (int)listbox->GetCount(); i++)
 250                 if (i != sel)
 251                     gtk_list_unselect_item( GTK_LIST(listbox->m_list), i );
 252
 253             listbox->m_blockEvent = false;
 254
 255             return false;
 256     }
 257
 258     /* emit wxEVT_COMMAND_LISTBOX_DOUBLECLICKED later */
 259     g_hasDoubleClicked = (gdk_event->type == GDK_2BUTTON_PRESS);
 260
 261     return FALSE;
 262 }
 263 }
 264
 265 //-----------------------------------------------------------------------------
 266 // "key_press_event"
 267 //-----------------------------------------------------------------------------
 268
 269 extern "C" {
 270 static gint
 271 gtk_listbox_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxListBox *listbox )
 272 {
 273     if (g_isIdle)
 274         wxapp_install_idle_handler();
 275
 276     if (g_blockEventsOnDrag)
 277         return FALSE;
 278
 279     bool ret = false;
 280
 281     if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
 282     {
 283         wxNavigationKeyEvent new_event;
 284         /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 285         new_event.SetDirection( (gdk_event->keyval == GDK_Tab) );
 286         /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 287         new_event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) );
 288         new_event.SetCurrentFocus( listbox );
 289         ret = listbox->GetEventHandler()->ProcessEvent( new_event );
 290     }
 291
 292     if ((gdk_event->keyval == GDK_Return) && (!ret))
 293     {
 294         // eat return in all modes
 295         ret = true;
 296     }
 297
 298 #if wxUSE_CHECKLISTBOX
 299     if ((gdk_event->keyval == ' ') && (listbox->m_hasCheckBoxes) && (!ret))
 300     {
 301         int sel = listbox->GtkGetIndex( widget );
 302
 303         wxCheckListBox *clb = (wxCheckListBox *)listbox;
 304
 305         clb->Check( sel, !clb->IsChecked(sel) );
 306
 307         wxCommandEvent new_event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 308         new_event.SetEventObject( listbox );
 309         new_event.SetInt( sel );
 310         ret = listbox->GetEventHandler()->ProcessEvent( new_event );
 311     }
 312 #endif // wxUSE_CHECKLISTBOX
 313
 314     // Check or uncheck item with SPACE
 315     if ((gdk_event->keyval == ' ') && (!ret) &&
 316          (((listbox->GetWindowStyleFlag() & wxLB_MULTIPLE) != 0) ||
 317           ((listbox->GetWindowStyleFlag() & wxLB_EXTENDED) != 0)) )
 318     {
 319         int sel = listbox->GtkGetIndex( widget );
 320
 321         if (sel != -1)
 322         {
 323             ret = true;
 324
 325             if (listbox->IsSelected( sel ))
 326                 gtk_list_unselect_item( listbox->m_list, sel );
 327             else
 328                 gtk_list_select_item( listbox->m_list, sel );
 329
 330             wxCommandEvent new_event(wxEVT_COMMAND_LISTBOX_SELECTED, listbox->GetId() );
 331             new_event.SetEventObject( listbox );
 332             wxArrayInt aSelections;
 333             int n, count = listbox->GetSelections(aSelections);
 334             if ( count > 0 )
 335             {
 336                 n = aSelections[0];
 337                 if ( listbox->HasClientObjectData() )
 338                     new_event.SetClientObject( listbox->GetClientObject(n) );
 339                 else if ( listbox->HasClientUntypedData() )
 340                     new_event.SetClientData( listbox->GetClientData(n) );
 341                 new_event.SetString( listbox->GetString(n) );
 342             }
 343             else
 344             {
 345                 n = -1;
 346             }
 347             new_event.SetInt(n);
 348             listbox->GetEventHandler()->ProcessEvent( new_event );
 349         }
 350     }
 351
 352     if (ret)
 353     {
 354         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
 355         return TRUE;
 356     }
 357
 358     return FALSE;
 359 }
 360 }
 361
 362 //-----------------------------------------------------------------------------
 363 // "select" and "deselect"
 364 //-----------------------------------------------------------------------------
 365
 366 static void gtk_listitem_select_cb( GtkWidget *widget,
 367                                     wxListBox *listbox,
 368                                     bool is_selection )
 369 {
 370     if (g_isIdle) wxapp_install_idle_handler();
 371
 372     if (!listbox->m_hasVMT) return;
 373     if (g_blockEventsOnDrag) return;
 374
 375     if (listbox->m_blockEvent) return;
 376
 377     wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, listbox->GetId() );
 378     event.SetEventObject( listbox );
 379
 380     // indicate whether this is a selection or a deselection
 381     event.SetExtraLong( is_selection );
 382
 383     if ((listbox->GetWindowStyleFlag() & wxLB_SINGLE) != 0)
 384     {
 385         int sel = listbox->GtkGetIndex( widget );
 386
 387         if (listbox->m_prevSelection != sel)
 388             gtk_list_unselect_item( listbox->m_list, listbox->m_prevSelection );
 389
 390         listbox->m_prevSelection = sel;
 391     }
 392
 393     wxArrayInt aSelections;
 394     int n, count = listbox->GetSelections(aSelections);
 395     if ( count > 0 )
 396     {
 397         n = aSelections[0];
 398         if ( listbox->HasClientObjectData() )
 399             event.SetClientObject( listbox->GetClientObject(n) );
 400         else if ( listbox->HasClientUntypedData() )
 401             event.SetClientData( listbox->GetClientData(n) );
 402         event.SetString( listbox->GetString(n) );
 403     }
 404     else
 405     {
 406         n = -1;
 407     }
 408
 409     event.SetInt(n);
 410
 411 //    No longer required with new code in wxLB_SINGLE
 412 //    listbox->GetEventHandler()->AddPendingEvent( event );
 413     listbox->GetEventHandler()->ProcessEvent( event );
 414 }
 415
 416 extern "C" {
 417 static void gtk_listitem_select_callback( GtkWidget *widget, wxListBox *listbox )
 418 {
 419     gtk_listitem_select_cb( widget, listbox, TRUE );
 420 }
 421 }
 422
 423 extern "C" {
 424 static void gtk_listitem_deselect_callback( GtkWidget *widget, wxListBox *listbox )
 425 {
 426     gtk_listitem_select_cb( widget, listbox, FALSE );
 427 }
 428 }
 429
 430 //-----------------------------------------------------------------------------
 431 // wxListBox
 432 //-----------------------------------------------------------------------------
 433
 434 extern "C" {
 435 static gint
 436 gtk_listbox_realized_callback( GtkWidget *m_widget, wxListBox *win )
 437 {
 438     if (g_isIdle)
 439         wxapp_install_idle_handler();
 440
 441     GList *child = win->m_list->children;
 442     for (child = win->m_list->children; child != NULL; child = child->next)
 443         gtk_widget_show( GTK_WIDGET(child->data) );
 444
 445     return false;
 446 }
 447 }
 448
 449 //-----------------------------------------------------------------------------
 450 // wxListBox
 451 //-----------------------------------------------------------------------------
 452
 453 IMPLEMENT_DYNAMIC_CLASS(wxListBox,wxControl)
 454
 455 // ----------------------------------------------------------------------------
 456 // construction
 457 // ----------------------------------------------------------------------------
 458
 459 wxListBox::wxListBox()
 460 {
 461     m_list = (GtkList *) NULL;
 462 #if wxUSE_CHECKLISTBOX
 463     m_hasCheckBoxes = false;
 464 #endif // wxUSE_CHECKLISTBOX
 465 }
 466
 467 bool wxListBox::Create( wxWindow *parent, wxWindowID id,
 468                         const wxPoint &pos, const wxSize &size,
 469                         const wxArrayString& choices,
 470                         long style, const wxValidator& validator,
 471                         const wxString &name )
 472 {
 473     wxCArrayString chs(choices);
 474
 475     return Create( parent, id, pos, size, chs.GetCount(), chs.GetStrings(),
 476                    style, validator, name );
 477 }
 478
 479 bool wxListBox::Create( wxWindow *parent, wxWindowID id,
 480                         const wxPoint &pos, const wxSize &size,
 481                         int n, const wxString choices[],
 482                         long style, const wxValidator& validator,
 483                         const wxString &name )
 484 {
 485     m_needParent = true;
 486     m_acceptsFocus = true;
 487     m_prevSelection = 0;  // or -1 ??
 488     m_blockEvent = false;
 489
 490     if (!PreCreation( parent, pos, size ) ||
 491         !CreateBase( parent, id, pos, size, style, validator, name ))
 492     {
 493         wxFAIL_MSG( wxT("wxListBox creation failed") );
 494         return false;
 495     }
 496
 497     m_widget = gtk_scrolled_window_new( (GtkAdjustment*) NULL, (GtkAdjustment*) NULL );
 498     if (style & wxLB_ALWAYS_SB)
 499     {
 500       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 501         GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS );
 502     }
 503     else
 504     {
 505       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 506         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 507     }
 508
 509     m_list = GTK_LIST( gtk_list_new() );
 510
 511     GtkSelectionMode mode;
 512     if (style & wxLB_MULTIPLE)
 513     {
 514         mode = GTK_SELECTION_MULTIPLE;
 515     }
 516     else if (style & wxLB_EXTENDED)
 517     {
 518         mode = GTK_SELECTION_EXTENDED;
 519     }
 520     else
 521     {
 522         // if style was 0 set single mode
 523         m_windowStyle |= wxLB_SINGLE;
 524         mode = GTK_SELECTION_SINGLE;
 525     }
 526
 527     gtk_list_set_selection_mode( GTK_LIST(m_list), mode );
 528
 529     gtk_scrolled_window_add_with_viewport( GTK_SCROLLED_WINDOW(m_widget), GTK_WIDGET(m_list) );
 530
 531     /* make list scroll when moving the focus down using cursor keys */
 532     gtk_container_set_focus_vadjustment(
 533         GTK_CONTAINER(m_list),
 534         gtk_scrolled_window_get_vadjustment(
 535             GTK_SCROLLED_WINDOW(m_widget)));
 536
 537     gtk_widget_show( GTK_WIDGET(m_list) );
 538
 539     gtk_signal_connect( GTK_OBJECT(m_list), "realize",
 540                         GTK_SIGNAL_FUNC(gtk_listbox_realized_callback), (gpointer) this );
 541
 542     if ( style & wxLB_SORT )
 543     {
 544         // this will change DoAppend() behaviour
 545         m_strings = new wxSortedArrayString;
 546     }
 547     else
 548     {
 549         m_strings = (wxSortedArrayString *)NULL;
 550     }
 551
 552     for (int i = 0; i < n; i++)
 553     {
 554         // add one by one
 555         DoAppend(choices[i]);
 556     }
 557
 558     m_parent->DoAddChild( this );
 559
 560     PostCreation(size);
 561     SetInitialSize(size); // need this too because this is a wxControlWithItems
 562
 563     return true;
 564 }
 565
 566 wxListBox::~wxListBox()
 567 {
 568     m_hasVMT = false;
 569
 570     Clear();
 571
 572     if (m_strings)
 573       delete m_strings;
 574 }
 575
 576 // ----------------------------------------------------------------------------
 577 // adding items
 578 // ----------------------------------------------------------------------------
 579
 580 void wxListBox::DoInsertItems(const wxArrayString& items, unsigned int pos)
 581 {
 582     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 583
 584     // VZ: notice that InsertItems knows nothing about sorting, so calling it
 585     //     from outside (and not from our own Append) is likely to break
 586     //     everything
 587
 588     // code elsewhere supposes we have as many items in m_clientList as items
 589     // in the listbox
 590     wxASSERT_MSG( m_clientList.GetCount() == GetCount(),
 591                   wxT("bug in client data management") );
 592
 593     InvalidateBestSize();
 594
 595     GList *children = m_list->children;
 596     unsigned int length = g_list_length(children);
 597
 598     wxCHECK_RET( pos <= length, wxT("invalid index in wxListBox::InsertItems") );
 599
 600     unsigned int nItems = items.GetCount();
 601     int index;
 602
 603     if (m_strings)
 604     {
 605         for (unsigned int n = 0; n < nItems; n++)
 606         {
 607             index = m_strings->Add( items[n] );
 608
 609             if (index != (int)GetCount())
 610             {
 611                 GtkAddItem( items[n], index );
 612                 wxList::compatibility_iterator node = m_clientList.Item( index );
 613                 m_clientList.Insert( node, (wxObject*) NULL );
 614             }
 615             else
 616             {
 617                 GtkAddItem( items[n] );
 618                 m_clientList.Append( (wxObject*) NULL );
 619             }
 620         }
 621     }
 622     else
 623     {
 624         if (pos == length)
 625         {
 626             for ( unsigned int n = 0; n < nItems; n++ )
 627             {
 628                 GtkAddItem( items[n] );
 629
 630                 m_clientList.Append((wxObject *)NULL);
 631             }
 632         }
 633         else
 634         {
 635             wxList::compatibility_iterator node = m_clientList.Item( pos );
 636             for ( unsigned int n = 0; n < nItems; n++ )
 637             {
 638                 GtkAddItem( items[n], pos+n );
 639
 640                 m_clientList.Insert( node, (wxObject *)NULL );
 641             }
 642         }
 643     }
 644
 645     wxASSERT_MSG( m_clientList.GetCount() == GetCount(),
 646                       wxT("bug in client data management") );
 647 }
 648
 649 int wxListBox::DoAppend( const wxString& item )
 650 {
 651     InvalidateBestSize();
 652
 653     if (m_strings)
 654     {
 655         // need to determine the index
 656         int index = m_strings->Add( item );
 657
 658         // only if not at the end anyway
 659         if (index != (int)GetCount())
 660         {
 661            GtkAddItem( item, index );
 662
 663            wxList::compatibility_iterator node = m_clientList.Item( index );
 664            m_clientList.Insert( node, (wxObject *)NULL );
 665
 666            return index;
 667         }
 668     }
 669
 670     GtkAddItem(item);
 671
 672     m_clientList.Append((wxObject *)NULL);
 673
 674     return GetCount() - 1;
 675 }
 676
 677 void wxListBox::GtkAddItem( const wxString &item, int pos )
 678 {
 679     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 680
 681     GtkWidget *list_item;
 682
 683     wxString label(item);
 684 #if wxUSE_CHECKLISTBOX
 685     if (m_hasCheckBoxes)
 686     {
 687         label.Prepend(wxCHECKLBOX_STRING);
 688     }
 689 #endif // wxUSE_CHECKLISTBOX
 690
 691     list_item = gtk_list_item_new_with_label( wxGTK_CONV( label ) );
 692
 693     GList *gitem_list = g_list_alloc ();
 694     gitem_list->data = list_item;
 695
 696     if (pos == -1)
 697         gtk_list_append_items( GTK_LIST (m_list), gitem_list );
 698     else
 699         gtk_list_insert_items( GTK_LIST (m_list), gitem_list, pos );
 700
 701     gtk_signal_connect_after( GTK_OBJECT(list_item), "select",
 702       GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 703
 704     if (HasFlag(wxLB_MULTIPLE) || HasFlag(wxLB_EXTENDED))
 705         gtk_signal_connect_after( GTK_OBJECT(list_item), "deselect",
 706           GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 707
 708     gtk_signal_connect( GTK_OBJECT(list_item),
 709                         "button_press_event",
 710                         (GtkSignalFunc)gtk_listbox_button_press_callback,
 711                         (gpointer) this );
 712
 713     gtk_signal_connect_after( GTK_OBJECT(list_item),
 714                         "button_release_event",
 715                         (GtkSignalFunc)gtk_listbox_button_release_callback,
 716                         (gpointer) this );
 717
 718     gtk_signal_connect( GTK_OBJECT(list_item),
 719                            "key_press_event",
 720                            (GtkSignalFunc)gtk_listbox_key_press_callback,
 721                            (gpointer)this );
 722
 723
 724     gtk_signal_connect( GTK_OBJECT(list_item), "focus_in_event",
 725             GTK_SIGNAL_FUNC(gtk_listitem_focus_in_callback), (gpointer)this );
 726
 727     gtk_signal_connect( GTK_OBJECT(list_item), "focus_out_event",
 728             GTK_SIGNAL_FUNC(gtk_listitem_focus_out_callback), (gpointer)this );
 729
 730     ConnectWidget( list_item );
 731
 732     if (GTK_WIDGET_REALIZED(m_widget))
 733     {
 734         gtk_widget_show( list_item );
 735
 736         gtk_widget_realize( list_item );
 737         gtk_widget_realize( GTK_BIN(list_item)->child );
 738
 739 #if wxUSE_TOOLTIPS
 740         if (m_tooltip) m_tooltip->Apply( this );
 741 #endif
 742     }
 743
 744     // Apply current widget style to the new list_item
 745     GtkRcStyle *style = CreateWidgetStyle();
 746     if (style)
 747     {
 748         gtk_widget_modify_style( GTK_WIDGET( list_item ), style );
 749         GtkBin *bin = GTK_BIN( list_item );
 750         gtk_widget_modify_style( GTK_WIDGET( bin->child ), style );
 751         gtk_rc_style_unref( style );
 752     }
 753 }
 754
 755 void wxListBox::DoSetItems( const wxArrayString& items,
 756                             void **clientData)
 757 {
 758     Clear();
 759
 760     DoInsertItems(items, 0);
 761
 762     if ( clientData )
 763     {
 764         unsigned int count = items.GetCount();
 765         for ( unsigned int n = 0; n < count; n++ )
 766         {
 767             SetClientData(n, clientData[n]);
 768         }
 769     }
 770 }
 771
 772 // ----------------------------------------------------------------------------
 773 // deleting items
 774 // ----------------------------------------------------------------------------
 775
 776 void wxListBox::Clear()
 777 {
 778     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 779
 780     gtk_list_clear_items( m_list, 0, (int)GetCount() );
 781
 782     if ( GTK_LIST(m_list)->last_focus_child != NULL  )
 783     {
 784         // This should be NULL, I think.
 785         GTK_LIST(m_list)->last_focus_child = NULL;
 786     }
 787
 788     if ( HasClientObjectData() )
 789     {
 790         // destroy the data (due to Robert's idea of using wxList<wxObject>
 791         // and not wxList<wxClientData> we can't just say
 792         // m_clientList.DeleteContents(true) - this would crash!
 793         wxList::compatibility_iterator node = m_clientList.GetFirst();
 794         while ( node )
 795         {
 796             delete (wxClientData *)node->GetData();
 797             node = node->GetNext();
 798         }
 799     }
 800     m_clientList.Clear();
 801
 802     if ( m_strings )
 803         m_strings->Clear();
 804 }
 805
 806 void wxListBox::Delete(unsigned int n)
 807 {
 808     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 809
 810     GList *child = g_list_nth( m_list->children, n );
 811
 812     wxCHECK_RET( child, wxT("wrong listbox index") );
 813
 814     GList *list = g_list_append( (GList*) NULL, child->data );
 815     gtk_list_remove_items( m_list, list );
 816     g_list_free( list );
 817
 818     wxList::compatibility_iterator node = m_clientList.Item( n );
 819     if ( node )
 820     {
 821         if ( m_clientDataItemsType == wxClientData_Object )
 822         {
 823             wxClientData *cd = (wxClientData*)node->GetData();
 824             delete cd;
 825         }
 826
 827         m_clientList.Erase( node );
 828     }
 829
 830     if ( m_strings )
 831         m_strings->RemoveAt(n);
 832 }
 833
 834 // ----------------------------------------------------------------------------
 835 // client data
 836 // ----------------------------------------------------------------------------
 837
 838 void wxListBox::DoSetItemClientData(unsigned int n, void* clientData)
 839 {
 840     wxCHECK_RET( m_widget != NULL, wxT("invalid listbox control") );
 841
 842     wxList::compatibility_iterator node = m_clientList.Item( n );
 843     wxCHECK_RET( node, wxT("invalid index in wxListBox::DoSetItemClientData") );
 844
 845     node->SetData( (wxObject*) clientData );
 846 }
 847
 848 void* wxListBox::DoGetItemClientData(unsigned int n) const
 849 {
 850     wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid listbox control") );
 851
 852     wxList::compatibility_iterator node = m_clientList.Item( n );
 853     wxCHECK_MSG( node, NULL, wxT("invalid index in wxListBox::DoGetItemClientData") );
 854
 855     return node->GetData();
 856 }
 857
 858 void wxListBox::DoSetItemClientObject(unsigned int n, wxClientData* clientData)
 859 {
 860     wxCHECK_RET( m_widget != NULL, wxT("invalid listbox control") );
 861
 862     wxList::compatibility_iterator node = m_clientList.Item( n );
 863     wxCHECK_RET( node, wxT("invalid index in wxListBox::DoSetItemClientObject") );
 864
 865     // wxItemContainer already deletes data for us
 866
 867     node->SetData( (wxObject*) clientData );
 868 }
 869
 870 wxClientData* wxListBox::DoGetItemClientObject(unsigned int n) const
 871 {
 872     wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, wxT("invalid listbox control") );
 873
 874     wxList::compatibility_iterator node = m_clientList.Item( n );
 875     wxCHECK_MSG( node, (wxClientData *)NULL,
 876                  wxT("invalid index in wxListBox::DoGetItemClientObject") );
 877
 878     return (wxClientData*) node->GetData();
 879 }
 880
 881 // ----------------------------------------------------------------------------
 882 // string list access
 883 // ----------------------------------------------------------------------------
 884
 885 wxString wxListBox::GetRealLabel(GList *item) const
 886 {
 887     GtkBin *bin = GTK_BIN( item->data );
 888     GtkLabel *label = GTK_LABEL( bin->child );
 889
 890     wxString str;
 891
 892     str = wxString( label->label );
 893
 894 #if wxUSE_CHECKLISTBOX
 895     // checklistboxes have "[±] " prepended to their lables, remove it
 896     //
 897     // NB: 4 below is the length of wxCHECKLBOX_STRING from wx/gtk1/checklst.h
 898     if ( m_hasCheckBoxes )
 899         str.erase(0, 4);
 900 #endif // wxUSE_CHECKLISTBOX
 901
 902     return str;
 903 }
 904
 905 void wxListBox::SetString(unsigned int n, const wxString &string)
 906 {
 907     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 908
 909     GList *child = g_list_nth( m_list->children, n );
 910     if (child)
 911     {
 912         GtkBin *bin = GTK_BIN( child->data );
 913         GtkLabel *label = GTK_LABEL( bin->child );
 914
 915         wxString str;
 916 #if wxUSE_CHECKLISTBOX
 917         if (m_hasCheckBoxes)
 918             str += wxCHECKLBOX_STRING;
 919 #endif // wxUSE_CHECKLISTBOX
 920         str += string;
 921
 922         gtk_label_set( label, wxGTK_CONV( str ) );
 923     }
 924     else
 925     {
 926         wxFAIL_MSG(wxT("wrong listbox index"));
 927     }
 928 }
 929
 930 wxString wxListBox::GetString(unsigned int n) const
 931 {
 932     wxCHECK_MSG( m_list != NULL, wxEmptyString, wxT("invalid listbox") );
 933
 934     GList *child = g_list_nth( m_list->children, n );
 935     if (child)
 936     {
 937         return GetRealLabel(child);
 938     }
 939
 940     wxFAIL_MSG(wxT("wrong listbox index"));
 941
 942     return wxEmptyString;
 943 }
 944
 945 unsigned int wxListBox::GetCount() const
 946 {
 947     wxCHECK_MSG( m_list != NULL, 0, wxT("invalid listbox") );
 948
 949     GList *children = m_list->children;
 950     return g_list_length(children);
 951 }
 952
 953 int wxListBox::FindString( const wxString &item, bool bCase ) const
 954 {
 955     wxCHECK_MSG( m_list != NULL, wxNOT_FOUND, wxT("invalid listbox") );
 956
 957     GList *child = m_list->children;
 958     int count = 0;
 959     while (child)
 960     {
 961         if ( item.IsSameAs( GetRealLabel(child), bCase ) )
 962             return count;
 963
 964         count++;
 965         child = child->next;
 966     }
 967
 968     // it's not an error if the string is not found -> no wxCHECK
 969
 970     return wxNOT_FOUND;
 971 }
 972
 973 // ----------------------------------------------------------------------------
 974 // selection
 975 // ----------------------------------------------------------------------------
 976
 977 int wxListBox::GetSelection() const
 978 {
 979     wxCHECK_MSG( m_list != NULL, wxNOT_FOUND, wxT("invalid listbox") );
 980
 981     GList *child = m_list->children;
 982     int count = 0;
 983     while (child)
 984     {
 985         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED) return count;
 986         count++;
 987         child = child->next;
 988     }
 989     return wxNOT_FOUND;
 990 }
 991
 992 int wxListBox::GetSelections( wxArrayInt& aSelections ) const
 993 {
 994     wxCHECK_MSG( m_list != NULL, wxNOT_FOUND, wxT("invalid listbox") );
 995
 996     // get the number of selected items first
 997     GList *child = m_list->children;
 998     int count = 0;
 999     for (child = m_list->children; child != NULL; child = child->next)
1000     {
1001         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
1002             count++;
1003     }
1004
1005     aSelections.Empty();
1006
1007     if (count > 0)
1008     {
1009         // now fill the list
1010         aSelections.Alloc(count); // optimization attempt
1011         int i = 0;
1012         for (child = m_list->children; child != NULL; child = child->next, i++)
1013         {
1014             if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
1015                  aSelections.Add(i);
1016         }
1017     }
1018
1019     return count;
1020 }
1021
1022 bool wxListBox::IsSelected( int n ) const
1023 {
1024     wxCHECK_MSG( m_list != NULL, false, wxT("invalid listbox") );
1025
1026     GList *target = g_list_nth( m_list->children, n );
1027
1028     wxCHECK_MSG( target, false, wxT("invalid listbox index") );
1029
1030     return (GTK_WIDGET(target->data)->state == GTK_STATE_SELECTED) ;
1031 }
1032
1033 void wxListBox::DoSetSelection( int n, bool select )
1034 {
1035     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
1036
1037     m_blockEvent = true;
1038
1039     if (select)
1040     {
1041         if ((m_windowStyle & wxLB_SINGLE) != 0)
1042             gtk_list_unselect_item( m_list, m_prevSelection );
1043         gtk_list_select_item( m_list, n );
1044         m_prevSelection = n;
1045     }
1046     else
1047         gtk_list_unselect_item( m_list, n );
1048
1049     m_blockEvent = false;
1050 }
1051
1052 void wxListBox::DoSetFirstItem( int n )
1053 {
1054     wxCHECK_RET( m_list, wxT("invalid listbox") );
1055
1056     if (gdk_pointer_is_grabbed () && GTK_WIDGET_HAS_GRAB (m_list))
1057         return;
1058
1059     // terribly efficient
1060     const gchar *vadjustment_key = "gtk-vadjustment";
1061     guint vadjustment_key_id = g_quark_from_static_string (vadjustment_key);
1062
1063     GtkAdjustment *adjustment =
1064        (GtkAdjustment*) gtk_object_get_data_by_id (GTK_OBJECT (m_list), vadjustment_key_id);
1065     wxCHECK_RET( adjustment, wxT("invalid listbox code") );
1066
1067     GList *target = g_list_nth( m_list->children, n );
1068     wxCHECK_RET( target, wxT("invalid listbox index") );
1069
1070     GtkWidget *item = GTK_WIDGET(target->data);
1071     wxCHECK_RET( item, wxT("invalid listbox code") );
1072
1073     if (item->allocation.y == -1)
1074     {
1075         wxlistbox_idle_struct* data = new wxlistbox_idle_struct;
1076         data->m_listbox = this;
1077         data->m_item = n;
1078         data->m_tag = gtk_idle_add_priority( 800, wxlistbox_idle_callback, (gpointer) data );
1079
1080         return;
1081     }
1082
1083     float y = item->allocation.y;
1084     if (y > adjustment->upper - adjustment->page_size)
1085         y = adjustment->upper - adjustment->page_size;
1086     gtk_adjustment_set_value( adjustment, y );
1087 }
1088
1089 // ----------------------------------------------------------------------------
1090 // helpers
1091 // ----------------------------------------------------------------------------
1092
1093 int wxListBox::GtkGetIndex( GtkWidget *item ) const
1094 {
1095     if (item)
1096     {
1097         GList *child = m_list->children;
1098         int count = 0;
1099         while (child)
1100         {
1101             if (GTK_WIDGET(child->data) == item) return count;
1102             count++;
1103             child = child->next;
1104         }
1105     }
1106     return -1;
1107 }
1108
1109 #if wxUSE_TOOLTIPS
1110 void wxListBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
1111 {
1112     GList *child = m_list->children;
1113     while (child)
1114     {
1115         gtk_tooltips_set_tip( tips, GTK_WIDGET( child->data ), wxConvCurrent->cWX2MB(tip), (gchar*) NULL );
1116         child = child->next;
1117     }
1118 }
1119 #endif // wxUSE_TOOLTIPS
1120
1121 GtkWidget *wxListBox::GetConnectWidget()
1122 {
1123     // return GTK_WIDGET(m_list);
1124     return m_widget;
1125 }
1126
1127 bool wxListBox::IsOwnGtkWindow( GdkWindow *window )
1128 {
1129     return true;
1130
1131 #if 0
1132     if (m_widget->window == window) return true;
1133
1134     if (GTK_WIDGET(m_list)->window == window) return true;
1135
1136     GList *child = m_list->children;
1137     while (child)
1138     {
1139         GtkWidget *bin = GTK_WIDGET( child->data );
1140         if (bin->window == window) return true;
1141         child = child->next;
1142     }
1143
1144     return false;
1145 #endif
1146 }
1147
1148 void wxListBox::DoApplyWidgetStyle(GtkRcStyle *style)
1149 {
1150     if (m_hasBgCol && m_backgroundColour.Ok())
1151     {
1152         GdkWindow *window = GTK_WIDGET(m_list)->window;
1153         if ( window )
1154         {
1155             m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1156             gdk_window_set_background( window, m_backgroundColour.GetColor() );
1157             gdk_window_clear( window );
1158         }
1159     }
1160
1161     GList *child = m_list->children;
1162     while (child)
1163     {
1164         gtk_widget_modify_style( GTK_WIDGET(child->data), style );
1165
1166         GtkBin *bin = GTK_BIN( child->data );
1167         GtkWidget *label = GTK_WIDGET( bin->child );
1168         gtk_widget_modify_style( label, style );
1169
1170         child = child->next;
1171     }
1172 }
1173
1174 void wxListBox::OnInternalIdle()
1175 {
1176     wxCursor cursor = m_cursor;
1177     if (g_globalCursor.Ok()) cursor = g_globalCursor;
1178
1179     if (GTK_WIDGET(m_list)->window && cursor.Ok())
1180     {
1181         /* I now set the cursor the anew in every OnInternalIdle call
1182            as setting the cursor in a parent window also effects the
1183            windows above so that checking for the current cursor is
1184            not possible. */
1185
1186         gdk_window_set_cursor( GTK_WIDGET(m_list)->window, cursor.GetCursor() );
1187
1188         GList *child = m_list->children;
1189         while (child)
1190         {
1191             GtkBin *bin = GTK_BIN( child->data );
1192             GtkWidget *label = GTK_WIDGET( bin->child );
1193
1194             if (!label->window)
1195                 break;
1196             else
1197                 gdk_window_set_cursor( label->window, cursor.GetCursor() );
1198
1199             child = child->next;
1200         }
1201     }
1202
1203     if (g_delayedFocus == this)
1204     {
1205         if (GTK_WIDGET_REALIZED(m_widget))
1206         {
1207             gtk_widget_grab_focus( m_widget );
1208             g_delayedFocus = NULL;
1209         }
1210     }
1211
1212     if (wxUpdateUIEvent::CanUpdate(this))
1213         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1214 }
1215
1216 wxSize wxListBox::DoGetBestSize() const
1217 {
1218     int lbWidth = 100;  // some defaults
1219     int lbHeight = 110;
1220     int wLine;
1221
1222     // Find the widest line
1223     for(unsigned int i = 0; i < GetCount(); i++) {
1224         wxString str(GetString(i));
1225         GetTextExtent(str, &wLine, NULL);
1226         lbWidth = wxMax(lbWidth, wLine);
1227     }
1228
1229     // Add room for the scrollbar
1230     lbWidth += wxSystemSettings::GetMetric(wxSYS_VSCROLL_X);
1231
1232     // And just a bit more
1233     int cx, cy;
1234     GetTextExtent( wxT("X"), &cx, &cy);
1235     lbWidth += 3 * cx;
1236
1237     // don't make the listbox too tall (limit height to around 10 items) but don't
1238     // make it too small neither
1239     lbHeight = (cy+4) * wxMin(wxMax(GetCount(), 3), 10);
1240
1241     wxSize best(lbWidth, lbHeight);
1242     CacheBestSize(best);
1243     return best;
1244 }
1245
1246 void wxListBox::FixUpMouseEvent(GtkWidget *widget, wxCoord& x, wxCoord& y)
1247 {
1248     // the mouse event coords are relative to the listbox items, we need to
1249     // translate them to the normal client coords
1250     x += widget->allocation.x;
1251     y += widget->allocation.y;
1252 }
1253
1254
1255 // static
1256 wxVisualAttributes
1257 wxListBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1258 {
1259     return GetDefaultAttributesFromGTKWidget(gtk_list_new, true);
1260 }
1261
1262 #endif // wxUSE_LISTBOX