src/gtk1/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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  12 #pragma implementation "listbox.h"
  13 #endif
  14
  15 // For compilers that support precompilation, includes "wx.h".
  16 #include "wx/wxprec.h"
  17
  18 #include "wx/defs.h"
  19
  20 #if wxUSE_LISTBOX
  21
  22 #include "wx/listbox.h"
  23 #include "wx/dynarray.h"
  24 #include "wx/arrstr.h"
  25 #include "wx/utils.h"
  26 #include "wx/intl.h"
  27 #include "wx/checklst.h"
  28 #include "wx/settings.h"
  29 #include "wx/gtk/private.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 // data
  48 //-----------------------------------------------------------------------------
  49
  50 extern bool           g_blockEventsOnDrag;
  51 extern bool           g_blockEventsOnScroll;
  52 extern wxCursor       g_globalCursor;
  53 extern wxWindowGTK   *g_delayedFocus;
  54 extern wxWindowGTK   *g_focusWindow;
  55 extern wxWindowGTK   *g_focusWindowLast;
  56
  57 static bool       g_hasDoubleClicked = FALSE;
  58
  59 //-----------------------------------------------------------------------------
  60 // idle callback for SetFirstItem
  61 //-----------------------------------------------------------------------------
  62
  63 struct wxlistbox_idle_struct
  64 {
  65     wxListBox   *m_listbox;
  66     int          m_item;
  67     gint         m_tag;
  68 };
  69
  70 extern "C" gint wxlistbox_idle_callback( gpointer gdata )
  71 {
  72     wxlistbox_idle_struct* data = (wxlistbox_idle_struct*) gdata;
  73     gdk_threads_enter();
  74
  75     gtk_idle_remove( data->m_tag );
  76
  77     // check that the items haven't been deleted from the listbox since we had
  78     // installed this callback
  79     wxListBox *lbox = data->m_listbox;
  80     if ( data->m_item < lbox->GetCount() )
  81     {
  82         lbox->SetFirstItem( data->m_item );
  83     }
  84
  85     delete data;
  86
  87     gdk_threads_leave();
  88
  89     return TRUE;
  90 }
  91
  92 //-----------------------------------------------------------------------------
  93 // "focus_in_event"
  94 //-----------------------------------------------------------------------------
  95
  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 // "focus_out_event"
 126 //-----------------------------------------------------------------------------
 127
 128 static gint gtk_listitem_focus_out_callback( GtkWidget *widget, GdkEventFocus *gdk_event, wxWindowGTK *win )
 129 {
 130     if (g_isIdle)
 131         wxapp_install_idle_handler();
 132
 133     g_focusWindow = (wxWindowGTK *)NULL;
 134
 135     // don't send the window a kill focus event if it thinks that it doesn't
 136     // have focus already
 137     if ( win->m_hasFocus )
 138     {
 139         win->m_hasFocus = FALSE;
 140
 141         wxFocusEvent event( wxEVT_KILL_FOCUS, win->GetId() );
 142         event.SetEventObject( win );
 143
 144         // even if we did process the event in wx code, still let GTK itself
 145         // process it too as otherwise bad things happen, especially in GTK2
 146         // where the text control simply aborts the program if it doesn't get
 147         // the matching focus out event
 148         (void)win->GetEventHandler()->ProcessEvent( event );
 149     }
 150
 151     return FALSE;
 152 }
 153
 154 //-----------------------------------------------------------------------------
 155 // "button_release_event"
 156 //-----------------------------------------------------------------------------
 157
 158 /* we would normally emit a wxEVT_COMMAND_LISTBOX_DOUBLECLICKED event once
 159    a GDK_2BUTTON_PRESS occurs, but this has the particular problem of the
 160    listbox keeping the focus until it receives a GDK_BUTTON_RELEASE event.
 161    this can lead to race conditions so that we emit the dclick event
 162    after the GDK_BUTTON_RELEASE event after the GDK_2BUTTON_PRESS event */
 163
 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 // "button_press_event"
 206 //-----------------------------------------------------------------------------
 207
 208 static gint
 209 gtk_listbox_button_press_callback( GtkWidget *widget,
 210                                    GdkEventButton *gdk_event,
 211                                    wxListBox *listbox )
 212 {
 213     if (g_isIdle) wxapp_install_idle_handler();
 214
 215     if (g_blockEventsOnDrag) return FALSE;
 216     if (g_blockEventsOnScroll) return FALSE;
 217
 218     if (!listbox->m_hasVMT) return FALSE;
 219
 220     int sel = listbox->GtkGetIndex( widget );
 221
 222 #if wxUSE_CHECKLISTBOX
 223     if ((listbox->m_hasCheckBoxes) && (gdk_event->x < 15) && (gdk_event->type != GDK_2BUTTON_PRESS))
 224     {
 225         wxCheckListBox *clb = (wxCheckListBox *)listbox;
 226
 227         clb->Check( sel, !clb->IsChecked(sel) );
 228
 229         wxCommandEvent event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 230         event.SetEventObject( listbox );
 231         event.SetInt( sel );
 232         listbox->GetEventHandler()->ProcessEvent( event );
 233     }
 234 #endif // wxUSE_CHECKLISTBOX
 235
 236 #if 0
 237     if ((gdk_event->state == 0) &&
 238          (((listbox->GetWindowStyleFlag() & wxLB_MULTIPLE) != 0) ||
 239           ((listbox->GetWindowStyleFlag() & wxLB_EXTENDED) != 0)) )
 240     {
 241         if (listbox->IsSelected(sel))
 242         {
 243             gtk_list_unselect_item( GTK_LIST(listbox->m_list), sel );
 244             return true;
 245         }
 246     }
 247 #endif
 248
 249     /* emit wxEVT_COMMAND_LISTBOX_DOUBLECLICKED later */
 250     g_hasDoubleClicked = (gdk_event->type == GDK_2BUTTON_PRESS);
 251
 252     return FALSE;
 253 }
 254
 255 //-----------------------------------------------------------------------------
 256 // "key_press_event"
 257 //-----------------------------------------------------------------------------
 258
 259 static gint
 260 gtk_listbox_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxListBox *listbox )
 261 {
 262     if (g_isIdle)
 263         wxapp_install_idle_handler();
 264
 265     if (g_blockEventsOnDrag)
 266         return FALSE;
 267
 268     bool ret = FALSE;
 269
 270     if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
 271     {
 272         wxNavigationKeyEvent new_event;
 273         /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 274         new_event.SetDirection( (gdk_event->keyval == GDK_Tab) );
 275         /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 276         new_event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) );
 277         new_event.SetCurrentFocus( listbox );
 278         ret = listbox->GetEventHandler()->ProcessEvent( new_event );
 279     }
 280
 281     if ((gdk_event->keyval == GDK_Return) && (!ret))
 282     {
 283         // eat return in all modes
 284         ret = TRUE;
 285     }
 286
 287 #if wxUSE_CHECKLISTBOX
 288     if ((gdk_event->keyval == ' ') && (listbox->m_hasCheckBoxes) && (!ret))
 289     {
 290         int sel = listbox->GtkGetIndex( widget );
 291
 292         wxCheckListBox *clb = (wxCheckListBox *)listbox;
 293
 294         clb->Check( sel, !clb->IsChecked(sel) );
 295
 296         wxCommandEvent new_event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 297         new_event.SetEventObject( listbox );
 298         new_event.SetInt( sel );
 299         ret = listbox->GetEventHandler()->ProcessEvent( new_event );
 300     }
 301 #endif // wxUSE_CHECKLISTBOX
 302
 303     // Check or uncheck item with SPACE
 304     if ((gdk_event->keyval == ' ') && (!ret) &&
 305          (((listbox->GetWindowStyleFlag() & wxLB_MULTIPLE) != 0) ||
 306           ((listbox->GetWindowStyleFlag() & wxLB_EXTENDED) != 0)) )
 307     {
 308         int sel = listbox->GtkGetIndex( widget );
 309
 310         if (sel != -1)
 311         {
 312             ret = TRUE;
 313
 314             if (listbox->IsSelected( sel ))
 315                 gtk_list_unselect_item( listbox->m_list, sel );
 316             else
 317                 gtk_list_select_item( listbox->m_list, sel );
 318
 319             wxCommandEvent new_event(wxEVT_COMMAND_LISTBOX_SELECTED, listbox->GetId() );
 320             new_event.SetEventObject( listbox );
 321             wxArrayInt aSelections;
 322             int n, count = listbox->GetSelections(aSelections);
 323             if ( count > 0 )
 324             {
 325                 n = aSelections[0];
 326                 if ( listbox->HasClientObjectData() )
 327                     new_event.SetClientObject( listbox->GetClientObject(n) );
 328                 else if ( listbox->HasClientUntypedData() )
 329                     new_event.SetClientData( listbox->GetClientData(n) );
 330                 new_event.SetString( listbox->GetString(n) );
 331             }
 332             else
 333             {
 334                 n = -1;
 335             }
 336             new_event.SetInt(n);
 337             listbox->GetEventHandler()->ProcessEvent( new_event );
 338         }
 339     }
 340
 341     if (ret)
 342     {
 343         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
 344         return TRUE;
 345     }
 346
 347     return FALSE;
 348 }
 349
 350 //-----------------------------------------------------------------------------
 351 // "select" and "deselect"
 352 //-----------------------------------------------------------------------------
 353
 354 static void gtk_listitem_select_cb( GtkWidget *widget, wxListBox *listbox, bool is_selection );
 355
 356 static void gtk_listitem_select_callback( GtkWidget *widget, wxListBox *listbox )
 357 {
 358     gtk_listitem_select_cb( widget, listbox, TRUE );
 359 }
 360
 361 static void gtk_listitem_deselect_callback( GtkWidget *widget, wxListBox *listbox )
 362 {
 363     gtk_listitem_select_cb( widget, listbox, FALSE );
 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 //-----------------------------------------------------------------------------
 417 // wxListBox
 418 //-----------------------------------------------------------------------------
 419
 420 static gint
 421 gtk_listbox_realized_callback( GtkWidget *m_widget, wxListBox *win )
 422 {
 423     if (g_isIdle)
 424         wxapp_install_idle_handler();
 425
 426     GList *child = win->m_list->children;
 427     for (child = win->m_list->children; child != NULL; child = child->next)
 428         gtk_widget_show( GTK_WIDGET(child->data) );
 429
 430     return false;
 431 }
 432
 433 //-----------------------------------------------------------------------------
 434 // wxListBox
 435 //-----------------------------------------------------------------------------
 436
 437 IMPLEMENT_DYNAMIC_CLASS(wxListBox,wxControl)
 438
 439 // ----------------------------------------------------------------------------
 440 // construction
 441 // ----------------------------------------------------------------------------
 442
 443 wxListBox::wxListBox()
 444 {
 445     m_list = (GtkList *) NULL;
 446 #if wxUSE_CHECKLISTBOX
 447     m_hasCheckBoxes = FALSE;
 448 #endif // wxUSE_CHECKLISTBOX
 449 }
 450
 451 bool wxListBox::Create( wxWindow *parent, wxWindowID id,
 452                         const wxPoint &pos, const wxSize &size,
 453                         const wxArrayString& choices,
 454                         long style, const wxValidator& validator,
 455                         const wxString &name )
 456 {
 457     wxCArrayString chs(choices);
 458
 459     return Create( parent, id, pos, size, chs.GetCount(), chs.GetStrings(),
 460                    style, validator, name );
 461 }
 462
 463 bool wxListBox::Create( wxWindow *parent, wxWindowID id,
 464                         const wxPoint &pos, const wxSize &size,
 465                         int n, const wxString choices[],
 466                         long style, const wxValidator& validator,
 467                         const wxString &name )
 468 {
 469     m_needParent = TRUE;
 470     m_acceptsFocus = TRUE;
 471     m_prevSelection = 0;  // or -1 ??
 472     m_blockEvent = FALSE;
 473
 474     if (!PreCreation( parent, pos, size ) ||
 475         !CreateBase( parent, id, pos, size, style, validator, name ))
 476     {
 477         wxFAIL_MSG( wxT("wxListBox creation failed") );
 478         return FALSE;
 479     }
 480
 481     m_widget = gtk_scrolled_window_new( (GtkAdjustment*) NULL, (GtkAdjustment*) NULL );
 482     if (style & wxLB_ALWAYS_SB)
 483     {
 484       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 485         GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS );
 486     }
 487     else
 488     {
 489       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 490         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 491     }
 492
 493     m_list = GTK_LIST( gtk_list_new() );
 494
 495     GtkSelectionMode mode;
 496     if (style & wxLB_MULTIPLE)
 497     {
 498         mode = GTK_SELECTION_MULTIPLE;
 499     }
 500     else if (style & wxLB_EXTENDED)
 501     {
 502         mode = GTK_SELECTION_EXTENDED;
 503     }
 504     else
 505     {
 506         // if style was 0 set single mode
 507         m_windowStyle |= wxLB_SINGLE;
 508         mode = GTK_SELECTION_SINGLE;
 509     }
 510
 511     gtk_list_set_selection_mode( GTK_LIST(m_list), mode );
 512
 513     gtk_scrolled_window_add_with_viewport( GTK_SCROLLED_WINDOW(m_widget), GTK_WIDGET(m_list) );
 514
 515     /* make list scroll when moving the focus down using cursor keys */
 516     gtk_container_set_focus_vadjustment(
 517         GTK_CONTAINER(m_list),
 518         gtk_scrolled_window_get_vadjustment(
 519             GTK_SCROLLED_WINDOW(m_widget)));
 520
 521     gtk_widget_show( GTK_WIDGET(m_list) );
 522
 523     gtk_signal_connect( GTK_OBJECT(m_list), "realize",
 524                         GTK_SIGNAL_FUNC(gtk_listbox_realized_callback), (gpointer) this );
 525
 526     if ( style & wxLB_SORT )
 527     {
 528         // this will change DoAppend() behaviour
 529         m_strings = new wxSortedArrayString;
 530     }
 531     else
 532     {
 533         m_strings = (wxSortedArrayString *)NULL;
 534     }
 535
 536     for (int i = 0; i < n; i++)
 537     {
 538         // add one by one
 539         DoAppend(choices[i]);
 540     }
 541
 542     m_parent->DoAddChild( this );
 543
 544     PostCreation(size);
 545     SetBestSize(size); // need this too because this is a wxControlWithItems
 546
 547     return TRUE;
 548 }
 549
 550 wxListBox::~wxListBox()
 551 {
 552     m_hasVMT = FALSE;
 553
 554     Clear();
 555
 556     if (m_strings)
 557       delete m_strings;
 558 }
 559
 560 // ----------------------------------------------------------------------------
 561 // adding items
 562 // ----------------------------------------------------------------------------
 563
 564 void wxListBox::DoInsertItems(const wxArrayString& items, int pos)
 565 {
 566     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 567
 568     // VZ: notice that InsertItems knows nothing about sorting, so calling it
 569     //     from outside (and not from our own Append) is likely to break
 570     //     everything
 571
 572     // code elsewhere supposes we have as many items in m_clientList as items
 573     // in the listbox
 574     wxASSERT_MSG( m_clientList.GetCount() == (size_t)GetCount(),
 575                   wxT("bug in client data management") );
 576
 577     InvalidateBestSize();
 578
 579     GList *children = m_list->children;
 580     int length = g_list_length(children);
 581
 582     wxCHECK_RET( pos <= length, wxT("invalid index in wxListBox::InsertItems") );
 583
 584     size_t nItems = items.GetCount();
 585     int index;
 586
 587     if (m_strings)
 588     {
 589         for (size_t n = 0; n < nItems; n++)
 590         {
 591             index = m_strings->Add( items[n] );
 592
 593             if (index != GetCount())
 594             {
 595                 GtkAddItem( items[n], index );
 596                 wxList::compatibility_iterator node = m_clientList.Item( index );
 597                 m_clientList.Insert( node, (wxObject*) NULL );
 598             }
 599             else
 600             {
 601                 GtkAddItem( items[n] );
 602                 m_clientList.Append( (wxObject*) NULL );
 603             }
 604         }
 605     }
 606     else
 607     {
 608         if (pos == length)
 609         {
 610             for ( size_t n = 0; n < nItems; n++ )
 611             {
 612                 GtkAddItem( items[n] );
 613
 614                 m_clientList.Append((wxObject *)NULL);
 615             }
 616         }
 617         else
 618         {
 619             wxList::compatibility_iterator node = m_clientList.Item( pos );
 620             for ( size_t n = 0; n < nItems; n++ )
 621             {
 622                 GtkAddItem( items[n], pos+n );
 623
 624                 m_clientList.Insert( node, (wxObject *)NULL );
 625             }
 626         }
 627     }
 628
 629     wxASSERT_MSG( m_clientList.GetCount() == (size_t)GetCount(),
 630                       wxT("bug in client data management") );
 631 }
 632
 633 int wxListBox::DoAppend( const wxString& item )
 634 {
 635     InvalidateBestSize();
 636
 637     if (m_strings)
 638     {
 639         // need to determine the index
 640         int index = m_strings->Add( item );
 641
 642         // only if not at the end anyway
 643         if (index != GetCount())
 644         {
 645            GtkAddItem( item, index );
 646
 647            wxList::compatibility_iterator node = m_clientList.Item( index );
 648            m_clientList.Insert( node, (wxObject *)NULL );
 649
 650            return index;
 651         }
 652     }
 653
 654     GtkAddItem(item);
 655
 656     m_clientList.Append((wxObject *)NULL);
 657
 658     return GetCount() - 1;
 659 }
 660
 661 void wxListBox::GtkAddItem( const wxString &item, int pos )
 662 {
 663     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 664
 665     GtkWidget *list_item;
 666
 667     wxString label(item);
 668 #if wxUSE_CHECKLISTBOX
 669     if (m_hasCheckBoxes)
 670     {
 671         label.Prepend(wxCHECKLBOX_STRING);
 672     }
 673 #endif // wxUSE_CHECKLISTBOX
 674
 675     list_item = gtk_list_item_new_with_label( wxGTK_CONV( label ) );
 676
 677     GList *gitem_list = g_list_alloc ();
 678     gitem_list->data = list_item;
 679
 680     if (pos == -1)
 681         gtk_list_append_items( GTK_LIST (m_list), gitem_list );
 682     else
 683         gtk_list_insert_items( GTK_LIST (m_list), gitem_list, pos );
 684
 685     gtk_signal_connect_after( GTK_OBJECT(list_item), "select",
 686       GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 687
 688     if (HasFlag(wxLB_MULTIPLE) || HasFlag(wxLB_EXTENDED))
 689         gtk_signal_connect_after( GTK_OBJECT(list_item), "deselect",
 690           GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 691
 692     gtk_signal_connect( GTK_OBJECT(list_item),
 693                         "button_press_event",
 694                         (GtkSignalFunc)gtk_listbox_button_press_callback,
 695                         (gpointer) this );
 696
 697     gtk_signal_connect_after( GTK_OBJECT(list_item),
 698                         "button_release_event",
 699                         (GtkSignalFunc)gtk_listbox_button_release_callback,
 700                         (gpointer) this );
 701
 702     gtk_signal_connect( GTK_OBJECT(list_item),
 703                            "key_press_event",
 704                            (GtkSignalFunc)gtk_listbox_key_press_callback,
 705                            (gpointer)this );
 706
 707
 708     gtk_signal_connect( GTK_OBJECT(list_item), "focus_in_event",
 709             GTK_SIGNAL_FUNC(gtk_listitem_focus_in_callback), (gpointer)this );
 710
 711     gtk_signal_connect( GTK_OBJECT(list_item), "focus_out_event",
 712             GTK_SIGNAL_FUNC(gtk_listitem_focus_out_callback), (gpointer)this );
 713
 714     ConnectWidget( list_item );
 715
 716     if (GTK_WIDGET_REALIZED(m_widget))
 717     {
 718         gtk_widget_show( list_item );
 719
 720         gtk_widget_realize( list_item );
 721         gtk_widget_realize( GTK_BIN(list_item)->child );
 722
 723 #if wxUSE_TOOLTIPS
 724         if (m_tooltip) m_tooltip->Apply( this );
 725 #endif
 726     }
 727
 728     // Apply current widget style to the new list_item
 729     GtkRcStyle *style = CreateWidgetStyle();
 730     if (style)
 731     {
 732         gtk_widget_modify_style( GTK_WIDGET( list_item ), style );
 733         GtkBin *bin = GTK_BIN( list_item );
 734         GtkWidget *label = GTK_WIDGET( bin->child );
 735         gtk_widget_modify_style( label, style );
 736         gtk_rc_style_unref( style );
 737     }
 738 }
 739
 740 void wxListBox::DoSetItems( const wxArrayString& items,
 741                             void **clientData)
 742 {
 743     Clear();
 744
 745     DoInsertItems(items, 0);
 746
 747     if ( clientData )
 748     {
 749         size_t count = items.GetCount();
 750         for ( size_t n = 0; n < count; n++ )
 751         {
 752             SetClientData(n, clientData[n]);
 753         }
 754     }
 755 }
 756
 757 // ----------------------------------------------------------------------------
 758 // deleting items
 759 // ----------------------------------------------------------------------------
 760
 761 void wxListBox::Clear()
 762 {
 763     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 764
 765     gtk_list_clear_items( m_list, 0, GetCount() );
 766
 767     if ( GTK_LIST(m_list)->last_focus_child != NULL  )
 768     {
 769         // This should be NULL, I think.
 770         GTK_LIST(m_list)->last_focus_child = NULL;
 771     }
 772
 773     if ( HasClientObjectData() )
 774     {
 775         // destroy the data (due to Robert's idea of using wxList<wxObject>
 776         // and not wxList<wxClientData> we can't just say
 777         // m_clientList.DeleteContents(TRUE) - this would crash!
 778         wxList::compatibility_iterator node = m_clientList.GetFirst();
 779         while ( node )
 780         {
 781             delete (wxClientData *)node->GetData();
 782             node = node->GetNext();
 783         }
 784     }
 785     m_clientList.Clear();
 786
 787     if ( m_strings )
 788         m_strings->Clear();
 789 }
 790
 791 void wxListBox::Delete( int n )
 792 {
 793     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 794
 795     GList *child = g_list_nth( m_list->children, n );
 796
 797     wxCHECK_RET( child, wxT("wrong listbox index") );
 798
 799     GList *list = g_list_append( (GList*) NULL, child->data );
 800     gtk_list_remove_items( m_list, list );
 801     g_list_free( list );
 802
 803     wxList::compatibility_iterator node = m_clientList.Item( n );
 804     if ( node )
 805     {
 806         if ( m_clientDataItemsType == wxClientData_Object )
 807         {
 808             wxClientData *cd = (wxClientData*)node->GetData();
 809             delete cd;
 810         }
 811
 812         m_clientList.Erase( node );
 813     }
 814
 815     if ( m_strings )
 816         m_strings->RemoveAt(n);
 817 }
 818
 819 // ----------------------------------------------------------------------------
 820 // client data
 821 // ----------------------------------------------------------------------------
 822
 823 void wxListBox::DoSetItemClientData( int n, void* clientData )
 824 {
 825     wxCHECK_RET( m_widget != NULL, wxT("invalid listbox control") );
 826
 827     wxList::compatibility_iterator node = m_clientList.Item( n );
 828     wxCHECK_RET( node, wxT("invalid index in wxListBox::DoSetItemClientData") );
 829
 830     node->SetData( (wxObject*) clientData );
 831 }
 832
 833 void* wxListBox::DoGetItemClientData( int n ) const
 834 {
 835     wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid listbox control") );
 836
 837     wxList::compatibility_iterator node = m_clientList.Item( n );
 838     wxCHECK_MSG( node, NULL, wxT("invalid index in wxListBox::DoGetItemClientData") );
 839
 840     return node->GetData();
 841 }
 842
 843 void wxListBox::DoSetItemClientObject( int n, wxClientData* clientData )
 844 {
 845     wxCHECK_RET( m_widget != NULL, wxT("invalid listbox control") );
 846
 847     wxList::compatibility_iterator node = m_clientList.Item( n );
 848     wxCHECK_RET( node, wxT("invalid index in wxListBox::DoSetItemClientObject") );
 849
 850     // wxItemContainer already deletes data for us
 851
 852     node->SetData( (wxObject*) clientData );
 853 }
 854
 855 wxClientData* wxListBox::DoGetItemClientObject( int n ) const
 856 {
 857     wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, wxT("invalid listbox control") );
 858
 859     wxList::compatibility_iterator node = m_clientList.Item( n );
 860     wxCHECK_MSG( node, (wxClientData *)NULL,
 861                  wxT("invalid index in wxListBox::DoGetItemClientObject") );
 862
 863     return (wxClientData*) node->GetData();
 864 }
 865
 866 // ----------------------------------------------------------------------------
 867 // string list access
 868 // ----------------------------------------------------------------------------
 869
 870 wxString wxListBox::GetRealLabel(GList *item) const
 871 {
 872     GtkBin *bin = GTK_BIN( item->data );
 873     GtkLabel *label = GTK_LABEL( bin->child );
 874
 875     wxString str;
 876
 877 #ifdef __WXGTK20__
 878     str = wxGTK_CONV_BACK( gtk_label_get_text( label ) );
 879 #else
 880     str = wxString( label->label );
 881 #endif
 882
 883 #if wxUSE_CHECKLISTBOX
 884     // checklistboxes have "[±] " prepended to their lables, remove it
 885     //
 886     // NB: 4 below is the length of wxCHECKLBOX_STRING from wx/gtk/checklst.h
 887     if ( m_hasCheckBoxes )
 888         str.erase(0, 4);
 889 #endif // wxUSE_CHECKLISTBOX
 890
 891     return str;
 892 }
 893
 894 void wxListBox::SetString( int n, const wxString &string )
 895 {
 896     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 897
 898     GList *child = g_list_nth( m_list->children, n );
 899     if (child)
 900     {
 901         GtkBin *bin = GTK_BIN( child->data );
 902         GtkLabel *label = GTK_LABEL( bin->child );
 903
 904         wxString str;
 905 #if wxUSE_CHECKLISTBOX
 906         if (m_hasCheckBoxes)
 907             str += wxCHECKLBOX_STRING;
 908 #endif // wxUSE_CHECKLISTBOX
 909         str += string;
 910
 911         gtk_label_set( label, wxGTK_CONV( str ) );
 912     }
 913     else
 914     {
 915         wxFAIL_MSG(wxT("wrong listbox index"));
 916     }
 917 }
 918
 919 wxString wxListBox::GetString( int n ) const
 920 {
 921     wxCHECK_MSG( m_list != NULL, wxT(""), wxT("invalid listbox") );
 922
 923     GList *child = g_list_nth( m_list->children, n );
 924     if (child)
 925     {
 926         return GetRealLabel(child);
 927     }
 928
 929     wxFAIL_MSG(wxT("wrong listbox index"));
 930
 931     return wxT("");
 932 }
 933
 934 int wxListBox::GetCount() const
 935 {
 936     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 937
 938     GList *children = m_list->children;
 939     return g_list_length(children);
 940 }
 941
 942 int wxListBox::FindString( const wxString &item ) const
 943 {
 944     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 945
 946     GList *child = m_list->children;
 947     int count = 0;
 948     while (child)
 949     {
 950         if ( GetRealLabel(child) == item )
 951             return count;
 952
 953         count++;
 954         child = child->next;
 955     }
 956
 957     // it's not an error if the string is not found -> no wxCHECK
 958
 959     return wxNOT_FOUND;
 960 }
 961
 962 // ----------------------------------------------------------------------------
 963 // selection
 964 // ----------------------------------------------------------------------------
 965
 966 int wxListBox::GetSelection() const
 967 {
 968     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 969
 970     GList *child = m_list->children;
 971     int count = 0;
 972     while (child)
 973     {
 974         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED) return count;
 975         count++;
 976         child = child->next;
 977     }
 978     return -1;
 979 }
 980
 981 int wxListBox::GetSelections( wxArrayInt& aSelections ) const
 982 {
 983     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 984
 985     // get the number of selected items first
 986     GList *child = m_list->children;
 987     int count = 0;
 988     for (child = m_list->children; child != NULL; child = child->next)
 989     {
 990         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
 991             count++;
 992     }
 993
 994     aSelections.Empty();
 995
 996     if (count > 0)
 997     {
 998         // now fill the list
 999         aSelections.Alloc(count); // optimization attempt
1000         int i = 0;
1001         for (child = m_list->children; child != NULL; child = child->next, i++)
1002         {
1003             if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
1004                  aSelections.Add(i);
1005         }
1006     }
1007
1008     return count;
1009 }
1010
1011 bool wxListBox::IsSelected( int n ) const
1012 {
1013     wxCHECK_MSG( m_list != NULL, FALSE, wxT("invalid listbox") );
1014
1015     GList *target = g_list_nth( m_list->children, n );
1016
1017     wxCHECK_MSG( target, FALSE, wxT("invalid listbox index") );
1018
1019     return (GTK_WIDGET(target->data)->state == GTK_STATE_SELECTED) ;
1020 }
1021
1022 void wxListBox::DoSetSelection( int n, bool select )
1023 {
1024     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
1025
1026     m_blockEvent = TRUE;
1027
1028     if (select)
1029     {
1030         if ((m_windowStyle & wxLB_SINGLE) != 0)
1031             gtk_list_unselect_item( m_list, m_prevSelection );
1032         gtk_list_select_item( m_list, n );
1033         m_prevSelection = n;
1034     }
1035     else
1036         gtk_list_unselect_item( m_list, n );
1037
1038     m_blockEvent = FALSE;
1039 }
1040
1041 void wxListBox::DoSetFirstItem( int n )
1042 {
1043     wxCHECK_RET( m_list, wxT("invalid listbox") );
1044
1045     if (gdk_pointer_is_grabbed () && GTK_WIDGET_HAS_GRAB (m_list))
1046         return;
1047
1048     // terribly efficient
1049     const gchar *vadjustment_key = "gtk-vadjustment";
1050     guint vadjustment_key_id = g_quark_from_static_string (vadjustment_key);
1051
1052     GtkAdjustment *adjustment =
1053        (GtkAdjustment*) gtk_object_get_data_by_id (GTK_OBJECT (m_list), vadjustment_key_id);
1054     wxCHECK_RET( adjustment, wxT("invalid listbox code") );
1055
1056     GList *target = g_list_nth( m_list->children, n );
1057     wxCHECK_RET( target, wxT("invalid listbox index") );
1058
1059     GtkWidget *item = GTK_WIDGET(target->data);
1060     wxCHECK_RET( item, wxT("invalid listbox code") );
1061
1062     if (item->allocation.y == -1)
1063     {
1064         wxlistbox_idle_struct* data = new wxlistbox_idle_struct;
1065         data->m_listbox = this;
1066         data->m_item = n;
1067         data->m_tag = gtk_idle_add_priority( 800, wxlistbox_idle_callback, (gpointer) data );
1068
1069         return;
1070     }
1071
1072     float y = item->allocation.y;
1073     if (y > adjustment->upper - adjustment->page_size)
1074         y = adjustment->upper - adjustment->page_size;
1075     gtk_adjustment_set_value( adjustment, y );
1076 }
1077
1078 // ----------------------------------------------------------------------------
1079 // helpers
1080 // ----------------------------------------------------------------------------
1081
1082 int wxListBox::GtkGetIndex( GtkWidget *item ) const
1083 {
1084     if (item)
1085     {
1086         GList *child = m_list->children;
1087         int count = 0;
1088         while (child)
1089         {
1090             if (GTK_WIDGET(child->data) == item) return count;
1091             count++;
1092             child = child->next;
1093         }
1094     }
1095     return -1;
1096 }
1097
1098 #if wxUSE_TOOLTIPS
1099 void wxListBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
1100 {
1101     GList *child = m_list->children;
1102     while (child)
1103     {
1104         gtk_tooltips_set_tip( tips, GTK_WIDGET( child->data ), wxConvCurrent->cWX2MB(tip), (gchar*) NULL );
1105         child = child->next;
1106     }
1107 }
1108 #endif // wxUSE_TOOLTIPS
1109
1110 GtkWidget *wxListBox::GetConnectWidget()
1111 {
1112     // return GTK_WIDGET(m_list);
1113     return m_widget;
1114 }
1115
1116 bool wxListBox::IsOwnGtkWindow( GdkWindow *window )
1117 {
1118     return TRUE;
1119
1120 #if 0
1121     if (m_widget->window == window) return TRUE;
1122
1123     if (GTK_WIDGET(m_list)->window == window) return TRUE;
1124
1125     GList *child = m_list->children;
1126     while (child)
1127     {
1128         GtkWidget *bin = GTK_WIDGET( child->data );
1129         if (bin->window == window) return TRUE;
1130         child = child->next;
1131     }
1132
1133     return FALSE;
1134 #endif
1135 }
1136
1137 void wxListBox::DoApplyWidgetStyle(GtkRcStyle *style)
1138 {
1139     if (m_hasBgCol && m_backgroundColour.Ok())
1140     {
1141         GdkWindow *window = GTK_WIDGET(m_list)->window;
1142         if ( window )
1143         {
1144             m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
1145             gdk_window_set_background( window, m_backgroundColour.GetColor() );
1146             gdk_window_clear( window );
1147         }
1148     }
1149
1150     GList *child = m_list->children;
1151     while (child)
1152     {
1153         gtk_widget_modify_style( GTK_WIDGET(child->data), style );
1154
1155         GtkBin *bin = GTK_BIN( child->data );
1156         GtkWidget *label = GTK_WIDGET( bin->child );
1157         gtk_widget_modify_style( label, style );
1158
1159         child = child->next;
1160     }
1161 }
1162
1163 void wxListBox::OnInternalIdle()
1164 {
1165     wxCursor cursor = m_cursor;
1166     if (g_globalCursor.Ok()) cursor = g_globalCursor;
1167
1168     if (GTK_WIDGET(m_list)->window && cursor.Ok())
1169     {
1170         /* I now set the cursor the anew in every OnInternalIdle call
1171            as setting the cursor in a parent window also effects the
1172            windows above so that checking for the current cursor is
1173            not possible. */
1174
1175         gdk_window_set_cursor( GTK_WIDGET(m_list)->window, cursor.GetCursor() );
1176
1177         GList *child = m_list->children;
1178         while (child)
1179         {
1180             GtkBin *bin = GTK_BIN( child->data );
1181             GtkWidget *label = GTK_WIDGET( bin->child );
1182
1183             if (!label->window)
1184                 break;
1185             else
1186                 gdk_window_set_cursor( label->window, cursor.GetCursor() );
1187
1188             child = child->next;
1189         }
1190     }
1191
1192     if (g_delayedFocus == this)
1193     {
1194         if (GTK_WIDGET_REALIZED(m_widget))
1195         {
1196             gtk_widget_grab_focus( m_widget );
1197             g_delayedFocus = NULL;
1198         }
1199     }
1200
1201     if (wxUpdateUIEvent::CanUpdate(this))
1202         UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
1203 }
1204
1205 wxSize wxListBox::DoGetBestSize() const
1206 {
1207     int lbWidth = 100;  // some defaults
1208     int lbHeight = 110;
1209     int wLine;
1210
1211     // Find the widest line
1212     for(int i = 0; i < GetCount(); i++) {
1213         wxString str(GetString(i));
1214         GetTextExtent(str, &wLine, NULL);
1215         lbWidth = wxMax(lbWidth, wLine);
1216     }
1217
1218     // Add room for the scrollbar
1219     lbWidth += wxSystemSettings::GetMetric(wxSYS_VSCROLL_X);
1220
1221     // And just a bit more
1222     int cx, cy;
1223     GetTextExtent( wxT("X"), &cx, &cy);
1224     lbWidth += 3 * cx;
1225
1226     // don't make the listbox too tall (limit height to around 10 items) but don't
1227     // make it too small neither
1228     lbHeight = (cy+4) * wxMin(wxMax(GetCount(), 3), 10);
1229
1230     wxSize best(lbWidth, lbHeight);
1231     CacheBestSize(best);
1232     return best;
1233 }
1234
1235 void wxListBox::FixUpMouseEvent(GtkWidget *widget, wxCoord& x, wxCoord& y)
1236 {
1237     // the mouse event coords are relative to the listbox items, we need to
1238     // translate them to the normal client coords
1239     x += widget->allocation.x;
1240     y += widget->allocation.y;
1241 }
1242
1243
1244 // static
1245 wxVisualAttributes
1246 wxListBox::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1247 {
1248     return GetDefaultAttributesFromGTKWidget(gtk_list_new, true);
1249 }
1250
1251 #endif // wxUSE_LISTBOX
1252