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