src/gtk/listbox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        listbox.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "listbox.h"
  13 #endif
  14
  15 #include "wx/listbox.h"
  16
  17 #if wxUSE_LISTBOX
  18
  19 #include "wx/dynarray.h"
  20 #include "wx/utils.h"
  21 #include "wx/intl.h"
  22 #include "wx/checklst.h"
  23 #include "wx/settings.h"
  24
  25 #if wxUSE_TOOLTIPS
  26 #include "wx/tooltip.h"
  27 #endif
  28
  29 #include <gdk/gdk.h>
  30 #include <gtk/gtk.h>
  31 #include <gdk/gdkkeysyms.h>
  32
  33 //-----------------------------------------------------------------------------
  34 // idle system
  35 //-----------------------------------------------------------------------------
  36
  37 extern void wxapp_install_idle_handler();
  38 extern bool g_isIdle;
  39
  40 //-------------------------------------------------------------------------
  41 // conditional compilation
  42 //-------------------------------------------------------------------------
  43
  44 #if (GTK_MINOR_VERSION > 0)
  45     #define NEW_GTK_SCROLL_CODE
  46 #endif
  47
  48 //-----------------------------------------------------------------------------
  49 // private functions
  50 //-----------------------------------------------------------------------------
  51
  52 #if wxUSE_CHECKLISTBOX
  53
  54 #define CHECKBOX_STRING "[-] "
  55
  56 // checklistboxes have "[±] " prepended to their lables, this macro removes it
  57 // (NB: 4 below is the length of CHECKBOX_STRING above)
  58 //
  59 // the argument to it is a "const char *" pointer
  60 #define GET_REAL_LABEL(label) ((m_hasCheckBoxes)?(label)+4 : (label))
  61
  62 #else // !wxUSE_CHECKLISTBOX
  63
  64 #define GET_REAL_LABEL(label) (label)
  65
  66 #endif // wxUSE_CHECKLISTBOX
  67
  68 //-----------------------------------------------------------------------------
  69 // data
  70 //-----------------------------------------------------------------------------
  71
  72 extern bool       g_blockEventsOnDrag;
  73 extern bool       g_blockEventsOnScroll;
  74 extern wxCursor   g_globalCursor;
  75
  76 static bool       g_hasDoubleClicked = FALSE;
  77
  78 //-----------------------------------------------------------------------------
  79 // idle callback for SetFirstItem
  80 //-----------------------------------------------------------------------------
  81
  82 struct wxlistbox_idle_struct
  83 {
  84     wxListBox   *m_listbox;
  85     int          m_item;
  86     gint         m_tag;
  87 };
  88
  89 static gint wxlistbox_idle_callback( gpointer gdata )
  90 {
  91     wxlistbox_idle_struct* data = (wxlistbox_idle_struct*) gdata;
  92     gdk_threads_enter();
  93
  94     gtk_idle_remove( data->m_tag );
  95
  96     data->m_listbox->SetFirstItem( data->m_item );
  97
  98     delete data;
  99
 100     gdk_threads_leave();
 101
 102     return TRUE;
 103 }
 104
 105 //-----------------------------------------------------------------------------
 106 // "button_release_event"
 107 //-----------------------------------------------------------------------------
 108
 109 /* we would normally emit a wxEVT_COMMAND_LISTBOX_DOUBLECLICKED event once
 110    a GDK_2BUTTON_PRESS occurs, but this has the particular problem of the
 111    listbox keeping the focus until it receives a GDK_BUTTON_RELEASE event.
 112    this can lead to race conditions so that we emit the dclick event
 113    after the GDK_BUTTON_RELEASE event after the GDK_2BUTTON_PRESS event */
 114
 115 static gint
 116 gtk_listbox_button_release_callback( GtkWidget * WXUNUSED(widget),
 117                                      GdkEventButton * WXUNUSED(gdk_event),
 118                                      wxListBox *listbox )
 119 {
 120     if (g_isIdle) wxapp_install_idle_handler();
 121
 122     if (g_blockEventsOnDrag) return FALSE;
 123     if (g_blockEventsOnScroll) return FALSE;
 124
 125     if (!listbox->m_hasVMT) return FALSE;
 126
 127     if (!g_hasDoubleClicked) return FALSE;
 128
 129     wxCommandEvent event( wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, listbox->GetId() );
 130     event.SetEventObject( listbox );
 131
 132     wxArrayInt aSelections;
 133     int n, count = listbox->GetSelections(aSelections);
 134     if ( count > 0 )
 135     {
 136         n = aSelections[0];
 137         if ( listbox->HasClientObjectData() )
 138             event.SetClientObject( listbox->GetClientObject(n) );
 139         else if ( listbox->HasClientUntypedData() )
 140             event.SetClientData( listbox->GetClientData(n) );
 141         event.SetString( listbox->GetString(n) );
 142     }
 143     else
 144     {
 145         n = -1;
 146     }
 147
 148     event.m_commandInt = n;
 149
 150     listbox->GetEventHandler()->ProcessEvent( event );
 151
 152     return FALSE;
 153 }
 154
 155 //-----------------------------------------------------------------------------
 156 // "button_press_event"
 157 //-----------------------------------------------------------------------------
 158
 159 static gint
 160 gtk_listbox_button_press_callback( GtkWidget *widget,
 161                                    GdkEventButton *gdk_event,
 162                                    wxListBox *listbox )
 163 {
 164     if (g_isIdle) wxapp_install_idle_handler();
 165
 166     if (g_blockEventsOnDrag) return FALSE;
 167     if (g_blockEventsOnScroll) return FALSE;
 168
 169     if (!listbox->m_hasVMT) return FALSE;
 170
 171     int sel = listbox->GtkGetIndex( widget );
 172
 173 #if wxUSE_CHECKLISTBOX
 174     if ((listbox->m_hasCheckBoxes) && (gdk_event->x < 15) && (gdk_event->type != GDK_2BUTTON_PRESS))
 175     {
 176         wxCheckListBox *clb = (wxCheckListBox *)listbox;
 177
 178         clb->Check( sel, !clb->IsChecked(sel) );
 179
 180         wxCommandEvent event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 181         event.SetEventObject( listbox );
 182         event.SetInt( sel );
 183         listbox->GetEventHandler()->ProcessEvent( event );
 184     }
 185 #endif // wxUSE_CHECKLISTBOX
 186
 187     /* emit wxEVT_COMMAND_LISTBOX_DOUBLECLICKED later */
 188     g_hasDoubleClicked = (gdk_event->type == GDK_2BUTTON_PRESS);
 189
 190     return FALSE;
 191 }
 192
 193 //-----------------------------------------------------------------------------
 194 // "key_press_event"
 195 //-----------------------------------------------------------------------------
 196
 197 static gint
 198 gtk_listbox_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxListBox *listbox )
 199 {
 200     if (g_isIdle)
 201         wxapp_install_idle_handler();
 202
 203     if (g_blockEventsOnDrag)
 204         return FALSE;
 205
 206     bool ret = FALSE;
 207
 208     if ((gdk_event->keyval == GDK_Tab) || (gdk_event->keyval == GDK_ISO_Left_Tab))
 209     {
 210         wxNavigationKeyEvent new_event;
 211         /* GDK reports GDK_ISO_Left_Tab for SHIFT-TAB */
 212         new_event.SetDirection( (gdk_event->keyval == GDK_Tab) );
 213         /* CTRL-TAB changes the (parent) window, i.e. switch notebook page */
 214         new_event.SetWindowChange( (gdk_event->state & GDK_CONTROL_MASK) );
 215         new_event.SetCurrentFocus( listbox );
 216         ret = listbox->GetEventHandler()->ProcessEvent( new_event );
 217     }
 218
 219     if ((gdk_event->keyval == GDK_Return) && (!ret))
 220     {
 221         // eat return in all modes
 222         ret = TRUE;
 223     }
 224
 225 #if wxUSE_CHECKLISTBOX
 226     if ((gdk_event->keyval == ' ') && (listbox->m_hasCheckBoxes) && (!ret))
 227     {
 228         int sel = listbox->GtkGetIndex( widget );
 229
 230         wxCheckListBox *clb = (wxCheckListBox *)listbox;
 231
 232         clb->Check( sel, !clb->IsChecked(sel) );
 233
 234         wxCommandEvent new_event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 235         new_event.SetEventObject( listbox );
 236         new_event.SetInt( sel );
 237         ret = listbox->GetEventHandler()->ProcessEvent( new_event );
 238     }
 239 #endif // wxUSE_CHECKLISTBOX
 240
 241     if (ret)
 242     {
 243         gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "key_press_event" );
 244         return TRUE;
 245     }
 246
 247     return FALSE;
 248 }
 249
 250 //-----------------------------------------------------------------------------
 251 // "select" and "deselect"
 252 //-----------------------------------------------------------------------------
 253
 254 static void gtk_listitem_select_callback( GtkWidget *WXUNUSED(widget), wxListBox *listbox );
 255
 256 static void gtk_listitem_deselect_callback( GtkWidget *widget, wxListBox *listbox )
 257 {
 258     gtk_listitem_select_callback( widget, listbox );
 259 }
 260
 261 static void gtk_listitem_select_callback( GtkWidget *WXUNUSED(widget), wxListBox *listbox )
 262 {
 263     if (g_isIdle) wxapp_install_idle_handler();
 264
 265     if (!listbox->m_hasVMT) return;
 266     if (g_blockEventsOnDrag) return;
 267
 268     wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, listbox->GetId() );
 269     event.SetEventObject( listbox );
 270
 271     wxArrayInt aSelections;
 272     int n, count = listbox->GetSelections(aSelections);
 273     if ( count > 0 )
 274     {
 275         n = aSelections[0];
 276         if ( listbox->HasClientObjectData() )
 277             event.SetClientObject( listbox->GetClientObject(n) );
 278         else if ( listbox->HasClientUntypedData() )
 279             event.SetClientData( listbox->GetClientData(n) );
 280         event.SetString( listbox->GetString(n) );
 281     }
 282     else
 283     {
 284         n = -1;
 285     }
 286
 287     event.m_commandInt = n;
 288
 289     listbox->GetEventHandler()->AddPendingEvent( event );
 290 //    listbox->GetEventHandler()->ProcessEvent( event );
 291 }
 292
 293 //-----------------------------------------------------------------------------
 294 // wxListBox
 295 //-----------------------------------------------------------------------------
 296
 297 IMPLEMENT_DYNAMIC_CLASS(wxListBox,wxControl)
 298
 299 // ----------------------------------------------------------------------------
 300 // construction
 301 // ----------------------------------------------------------------------------
 302
 303 wxListBox::wxListBox()
 304 {
 305     m_list = (GtkList *) NULL;
 306 #if wxUSE_CHECKLISTBOX
 307     m_hasCheckBoxes = FALSE;
 308 #endif // wxUSE_CHECKLISTBOX
 309 }
 310
 311 bool wxListBox::Create( wxWindow *parent, wxWindowID id,
 312                         const wxPoint &pos, const wxSize &size,
 313                         int n, const wxString choices[],
 314                         long style, const wxValidator& validator,
 315                         const wxString &name )
 316 {
 317     m_needParent = TRUE;
 318     m_acceptsFocus = TRUE;
 319
 320     if (!PreCreation( parent, pos, size ) ||
 321         !CreateBase( parent, id, pos, size, style, validator, name ))
 322     {
 323         wxFAIL_MSG( wxT("wxListBox creation failed") );
 324         return FALSE;
 325     }
 326
 327     m_widget = gtk_scrolled_window_new( (GtkAdjustment*) NULL, (GtkAdjustment*) NULL );
 328     if (style & wxLB_ALWAYS_SB)
 329     {
 330       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 331         GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS );
 332     }
 333     else
 334     {
 335       gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 336         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 337     }
 338
 339     m_list = GTK_LIST( gtk_list_new() );
 340
 341     GtkSelectionMode mode;
 342     if (style & wxLB_MULTIPLE)
 343     {
 344         mode = GTK_SELECTION_MULTIPLE;
 345     }
 346     else if (style & wxLB_EXTENDED)
 347     {
 348         mode = GTK_SELECTION_EXTENDED;
 349     }
 350     else
 351     {
 352         // if style was 0 set single mode
 353         m_windowStyle |= wxLB_SINGLE;
 354         mode = GTK_SELECTION_BROWSE;
 355     }
 356
 357     gtk_list_set_selection_mode( GTK_LIST(m_list), mode );
 358
 359 #ifdef NEW_GTK_SCROLL_CODE
 360     gtk_scrolled_window_add_with_viewport( GTK_SCROLLED_WINDOW(m_widget), GTK_WIDGET(m_list) );
 361 #else
 362     gtk_container_add( GTK_CONTAINER(m_widget), GTK_WIDGET(m_list) );
 363 #endif
 364
 365     /* make list scroll when moving the focus down using cursor keys */
 366     gtk_container_set_focus_vadjustment(
 367         GTK_CONTAINER(m_list),
 368         gtk_scrolled_window_get_vadjustment(
 369             GTK_SCROLLED_WINDOW(m_widget)));
 370
 371     gtk_widget_show( GTK_WIDGET(m_list) );
 372
 373     SetSizeOrDefault( size );
 374
 375     if ( style & wxLB_SORT )
 376     {
 377         // this will change DoAppend() behaviour
 378         m_strings = new wxSortedArrayString;
 379     }
 380     else
 381     {
 382         m_strings = (wxSortedArrayString *)NULL;
 383     }
 384
 385     for (int i = 0; i < n; i++)
 386     {
 387         // add one by one
 388         DoAppend(choices[i]);
 389     }
 390
 391     m_parent->DoAddChild( this );
 392
 393     PostCreation();
 394
 395     SetBackgroundColour( wxSystemSettings::GetSystemColour( wxSYS_COLOUR_LISTBOX ) );
 396     SetForegroundColour( parent->GetForegroundColour() );
 397     SetFont( parent->GetFont() );
 398
 399     Show( TRUE );
 400
 401     return TRUE;
 402 }
 403
 404 wxListBox::~wxListBox()
 405 {
 406     m_hasVMT = FALSE;
 407
 408     Clear();
 409
 410     if (m_strings)
 411       delete m_strings;
 412 }
 413
 414 void wxListBox::DoInsertItems(const wxArrayString& items, int pos)
 415 {
 416     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 417
 418     // VZ: notice that InsertItems knows nothing about sorting, so calling it
 419     //     from outside (and not from our own Append) is likely to break
 420     //     everything
 421
 422     // code elsewhere supposes we have as many items in m_clientList as items
 423     // in the listbox
 424     wxASSERT_MSG( m_clientList.GetCount() == (size_t)GetCount(),
 425                   wxT("bug in client data management") );
 426
 427     GList *children = m_list->children;
 428     int length = g_list_length(children);
 429
 430     wxCHECK_RET( pos <= length, wxT("invalid index in wxListBox::InsertItems") );
 431
 432     size_t nItems = items.GetCount();
 433
 434     if (pos == length)
 435     {
 436         for ( size_t n = 0; n < nItems; n++ )
 437         {
 438             GtkAddItem( items[n] );
 439
 440             m_clientList.Append((wxObject *)NULL);
 441         }
 442     }
 443     else
 444     {
 445         wxNode *node = m_clientList.Nth( pos );
 446         for ( size_t n = 0; n < nItems; n++ )
 447         {
 448             GtkAddItem( items[n], pos+n );
 449
 450             m_clientList.Insert( node, (wxObject *)NULL );
 451         }
 452     }
 453
 454     wxASSERT_MSG( m_clientList.GetCount() == (size_t)GetCount(),
 455                       wxT("bug in client data management") );
 456 }
 457
 458 int wxListBox::DoAppend( const wxString& item )
 459 {
 460     if (m_strings)
 461     {
 462         // need to determine the index
 463         int index = m_strings->Add( item );
 464
 465         // only if not at the end anyway
 466         if (index != GetCount())
 467         {
 468            GtkAddItem( item, index );
 469
 470            wxNode *node = m_clientList.Nth( index );
 471            m_clientList.Insert( node, (wxObject *)NULL );
 472
 473            return index;
 474         }
 475     }
 476
 477     GtkAddItem(item);
 478
 479     m_clientList.Append((wxObject *)NULL);
 480
 481     return GetCount() - 1;
 482 }
 483
 484 void wxListBox::GtkAddItem( const wxString &item, int pos )
 485 {
 486     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 487
 488     GtkWidget *list_item;
 489
 490     wxString label(item);
 491 #if wxUSE_CHECKLISTBOX
 492     if (m_hasCheckBoxes)
 493     {
 494         label.Prepend(CHECKBOX_STRING);
 495     }
 496 #endif // wxUSE_CHECKLISTBOX
 497
 498     list_item = gtk_list_item_new_with_label( label.mbc_str() );
 499
 500     GList *gitem_list = g_list_alloc ();
 501     gitem_list->data = list_item;
 502
 503     if (pos == -1)
 504         gtk_list_append_items( GTK_LIST (m_list), gitem_list );
 505     else
 506         gtk_list_insert_items( GTK_LIST (m_list), gitem_list, pos );
 507
 508     gtk_signal_connect( GTK_OBJECT(list_item), "select",
 509       GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 510
 511     if (HasFlag(wxLB_MULTIPLE))
 512         gtk_signal_connect( GTK_OBJECT(list_item), "deselect",
 513           GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 514
 515     gtk_signal_connect( GTK_OBJECT(list_item),
 516                         "button_press_event",
 517                         (GtkSignalFunc)gtk_listbox_button_press_callback,
 518                         (gpointer) this );
 519
 520     gtk_signal_connect_after( GTK_OBJECT(list_item),
 521                         "button_release_event",
 522                         (GtkSignalFunc)gtk_listbox_button_release_callback,
 523                         (gpointer) this );
 524
 525     gtk_signal_connect( GTK_OBJECT(list_item),
 526                            "key_press_event",
 527                            (GtkSignalFunc)gtk_listbox_key_press_callback,
 528                            (gpointer)this );
 529
 530     ConnectWidget( list_item );
 531
 532     gtk_widget_show( list_item );
 533
 534     if (GTK_WIDGET_REALIZED(m_widget))
 535     {
 536         gtk_widget_realize( list_item );
 537         gtk_widget_realize( GTK_BIN(list_item)->child );
 538
 539         // Apply current widget style to the new list_item
 540         if (m_widgetStyle)
 541         {
 542             gtk_widget_set_style( GTK_WIDGET( list_item ), m_widgetStyle );
 543             GtkBin *bin = GTK_BIN( list_item );
 544             GtkWidget *label = GTK_WIDGET( bin->child );
 545             gtk_widget_set_style( label, m_widgetStyle );
 546         }
 547
 548 #if wxUSE_TOOLTIPS
 549         if (m_tooltip) m_tooltip->Apply( this );
 550 #endif
 551     }
 552 }
 553
 554 void wxListBox::DoSetItems( const wxArrayString& items,
 555                             void **clientData)
 556 {
 557     Clear();
 558
 559     DoInsertItems(items, 0);
 560
 561     if ( clientData )
 562     {
 563         size_t count = items.GetCount();
 564         for ( size_t n = 0; n < count; n++ )
 565         {
 566             SetClientData(n, clientData[n]);
 567         }
 568     }
 569 }
 570
 571 // ----------------------------------------------------------------------------
 572 // client data
 573 // ----------------------------------------------------------------------------
 574
 575 void wxListBox::DoSetItemClientData( int n, void* clientData )
 576 {
 577     wxCHECK_RET( m_widget != NULL, wxT("invalid listbox control") );
 578
 579     wxNode *node = m_clientList.Nth( n );
 580     wxCHECK_RET( node, wxT("invalid index in wxListBox::DoSetItemClientData") );
 581
 582     node->SetData( (wxObject*) clientData );
 583 }
 584
 585 void* wxListBox::DoGetItemClientData( int n ) const
 586 {
 587     wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid listbox control") );
 588
 589     wxNode *node = m_clientList.Nth( n );
 590     wxCHECK_MSG( node, NULL, wxT("invalid index in wxListBox::DoGetItemClientData") );
 591
 592     return node->Data();
 593 }
 594
 595 void wxListBox::DoSetItemClientObject( int n, wxClientData* clientData )
 596 {
 597     wxCHECK_RET( m_widget != NULL, wxT("invalid listbox control") );
 598
 599     wxNode *node = m_clientList.Nth( n );
 600     wxCHECK_RET( node, wxT("invalid index in wxListBox::DoSetItemClientObject") );
 601
 602     wxClientData *cd = (wxClientData*) node->Data();
 603     delete cd;
 604
 605     node->SetData( (wxObject*) clientData );
 606 }
 607
 608 wxClientData* wxListBox::DoGetItemClientObject( int n ) const
 609 {
 610     wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, wxT("invalid listbox control") );
 611
 612     wxNode *node = m_clientList.Nth( n );
 613     wxCHECK_MSG( node, (wxClientData *)NULL,
 614                  wxT("invalid index in wxListBox::DoGetItemClientObject") );
 615
 616     return (wxClientData*) node->Data();
 617 }
 618
 619 void wxListBox::Clear()
 620 {
 621     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 622
 623     gtk_list_clear_items( m_list, 0, Number() );
 624
 625     if ( HasClientObjectData() )
 626     {
 627         // destroy the data (due to Robert's idea of using wxList<wxObject>
 628         // and not wxList<wxClientData> we can't just say
 629         // m_clientList.DeleteContents(TRUE) - this would crash!
 630         wxNode *node = m_clientList.First();
 631         while ( node )
 632         {
 633             delete (wxClientData *)node->Data();
 634             node = node->Next();
 635         }
 636     }
 637     m_clientList.Clear();
 638
 639     if ( m_strings )
 640         m_strings->Clear();
 641 }
 642
 643 void wxListBox::Delete( int n )
 644 {
 645     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 646
 647     GList *child = g_list_nth( m_list->children, n );
 648
 649     wxCHECK_RET( child, wxT("wrong listbox index") );
 650
 651     GList *list = g_list_append( (GList*) NULL, child->data );
 652     gtk_list_remove_items( m_list, list );
 653     g_list_free( list );
 654
 655     wxNode *node = m_clientList.Nth( n );
 656     if ( node )
 657     {
 658         if ( m_clientDataItemsType == ClientData_Object )
 659         {
 660             wxClientData *cd = (wxClientData*)node->Data();
 661             delete cd;
 662         }
 663
 664         m_clientList.DeleteNode( node );
 665     }
 666
 667     if ( m_strings )
 668         m_strings->Remove(n);
 669 }
 670
 671 // ----------------------------------------------------------------------------
 672 // string list access
 673 // ----------------------------------------------------------------------------
 674
 675 void wxListBox::SetString( int n, const wxString &string )
 676 {
 677     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 678
 679     GList *child = g_list_nth( m_list->children, n );
 680     if (child)
 681     {
 682         GtkBin *bin = GTK_BIN( child->data );
 683         GtkLabel *label = GTK_LABEL( bin->child );
 684
 685         wxString str;
 686 #if wxUSE_CHECKLISTBOX
 687         if (m_hasCheckBoxes)
 688             str += CHECKBOX_STRING;
 689 #endif // wxUSE_CHECKLISTBOX
 690         str += string;
 691
 692         gtk_label_set( label, str.mbc_str() );
 693     }
 694     else
 695     {
 696         wxFAIL_MSG(wxT("wrong listbox index"));
 697     }
 698 }
 699
 700 wxString wxListBox::GetString( int n ) const
 701 {
 702     wxCHECK_MSG( m_list != NULL, wxT(""), wxT("invalid listbox") );
 703
 704     GList *child = g_list_nth( m_list->children, n );
 705     if (child)
 706     {
 707         GtkBin *bin = GTK_BIN( child->data );
 708         GtkLabel *label = GTK_LABEL( bin->child );
 709
 710         wxString str = wxString(GET_REAL_LABEL(label->label),*wxConvCurrent);
 711
 712         return str;
 713     }
 714
 715     wxFAIL_MSG(wxT("wrong listbox index"));
 716
 717     return wxT("");
 718 }
 719
 720 int wxListBox::GetCount() const
 721 {
 722     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 723
 724     GList *children = m_list->children;
 725     return g_list_length(children);
 726 }
 727
 728 int wxListBox::FindString( const wxString &item ) const
 729 {
 730     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 731
 732     GList *child = m_list->children;
 733     int count = 0;
 734     while (child)
 735     {
 736         GtkBin *bin = GTK_BIN( child->data );
 737         GtkLabel *label = GTK_LABEL( bin->child );
 738
 739         wxString str = wxString(GET_REAL_LABEL(label->label),*wxConvCurrent);
 740
 741         if (str == item)
 742             return count;
 743
 744         count++;
 745         child = child->next;
 746     }
 747
 748     // it's not an error if the string is not found -> no wxCHECK
 749
 750     return wxNOT_FOUND;
 751 }
 752
 753 // ----------------------------------------------------------------------------
 754 // selection
 755 // ----------------------------------------------------------------------------
 756
 757 int wxListBox::GetSelection() const
 758 {
 759     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 760
 761     GList *child = m_list->children;
 762     int count = 0;
 763     while (child)
 764     {
 765         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED) return count;
 766         count++;
 767         child = child->next;
 768     }
 769     return -1;
 770 }
 771
 772 int wxListBox::GetSelections( wxArrayInt& aSelections ) const
 773 {
 774     wxCHECK_MSG( m_list != NULL, -1, wxT("invalid listbox") );
 775
 776     // get the number of selected items first
 777     GList *child = m_list->children;
 778     int count = 0;
 779     for (child = m_list->children; child != NULL; child = child->next)
 780     {
 781         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
 782             count++;
 783     }
 784
 785     aSelections.Empty();
 786
 787     if (count > 0)
 788     {
 789         // now fill the list
 790         aSelections.Alloc(count); // optimization attempt
 791         int i = 0;
 792         for (child = m_list->children; child != NULL; child = child->next, i++)
 793         {
 794             if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
 795                  aSelections.Add(i);
 796         }
 797     }
 798
 799     return count;
 800 }
 801
 802 bool wxListBox::IsSelected( int n ) const
 803 {
 804     wxCHECK_MSG( m_list != NULL, FALSE, wxT("invalid listbox") );
 805
 806     GList *target = g_list_nth( m_list->children, n );
 807
 808     wxCHECK_MSG( target, FALSE, wxT("invalid listbox index") );
 809
 810     return (GTK_WIDGET(target->data)->state == GTK_STATE_SELECTED) ;
 811 }
 812
 813 void wxListBox::SetSelection( int n, bool select )
 814 {
 815     wxCHECK_RET( m_list != NULL, wxT("invalid listbox") );
 816
 817     GtkDisableEvents();
 818
 819     if (select)
 820         gtk_list_select_item( m_list, n );
 821     else
 822         gtk_list_unselect_item( m_list, n );
 823
 824     GtkEnableEvents();
 825 }
 826
 827 void wxListBox::DoSetFirstItem( int n )
 828 {
 829     wxCHECK_RET( m_list, wxT("invalid listbox") );
 830
 831     if (gdk_pointer_is_grabbed () && GTK_WIDGET_HAS_GRAB (m_list))
 832         return;
 833
 834     // terribly efficient
 835     const gchar *vadjustment_key = "gtk-vadjustment";
 836     guint vadjustment_key_id = g_quark_from_static_string (vadjustment_key);
 837
 838     GtkAdjustment *adjustment =
 839        (GtkAdjustment*) gtk_object_get_data_by_id (GTK_OBJECT (m_list), vadjustment_key_id);
 840     wxCHECK_RET( adjustment, wxT("invalid listbox code") );
 841
 842     GList *target = g_list_nth( m_list->children, n );
 843     wxCHECK_RET( target, wxT("invalid listbox index") );
 844
 845     GtkWidget *item = GTK_WIDGET(target->data);
 846     wxCHECK_RET( item, wxT("invalid listbox code") );
 847
 848     if (item->allocation.y == -1)
 849     {
 850         wxlistbox_idle_struct* data = new wxlistbox_idle_struct;
 851         data->m_listbox = this;
 852         data->m_item = n;
 853         data->m_tag = gtk_idle_add_priority( 800, wxlistbox_idle_callback, (gpointer) data );
 854
 855         return;
 856     }
 857
 858     float y = item->allocation.y;
 859     if (y > adjustment->upper - adjustment->page_size)
 860         y = adjustment->upper - adjustment->page_size;
 861         gtk_adjustment_set_value( adjustment, y );
 862 }
 863
 864 // ----------------------------------------------------------------------------
 865 // helpers
 866 // ----------------------------------------------------------------------------
 867
 868 int wxListBox::GtkGetIndex( GtkWidget *item ) const
 869 {
 870     if (item)
 871     {
 872         GList *child = m_list->children;
 873         int count = 0;
 874         while (child)
 875         {
 876             if (GTK_WIDGET(child->data) == item) return count;
 877             count++;
 878             child = child->next;
 879         }
 880     }
 881     return -1;
 882 }
 883
 884 #if wxUSE_TOOLTIPS
 885 void wxListBox::ApplyToolTip( GtkTooltips *tips, const wxChar *tip )
 886 {
 887     GList *child = m_list->children;
 888     while (child)
 889     {
 890         gtk_tooltips_set_tip( tips, GTK_WIDGET( child->data ), wxConvCurrent->cWX2MB(tip), (gchar*) NULL );
 891         child = child->next;
 892     }
 893 }
 894 #endif // wxUSE_TOOLTIPS
 895
 896 void wxListBox::GtkDisableEvents()
 897 {
 898     GList *child = m_list->children;
 899     while (child)
 900     {
 901         gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
 902           GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 903
 904         if (HasFlag(wxLB_MULTIPLE))
 905             gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
 906               GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 907
 908         child = child->next;
 909     }
 910 }
 911
 912 void wxListBox::GtkEnableEvents()
 913 {
 914     GList *child = m_list->children;
 915     while (child)
 916     {
 917         gtk_signal_connect( GTK_OBJECT(child->data), "select",
 918           GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 919
 920         if (HasFlag(wxLB_MULTIPLE))
 921             gtk_signal_connect( GTK_OBJECT(child->data), "deselect",
 922               GTK_SIGNAL_FUNC(gtk_listitem_deselect_callback), (gpointer)this );
 923
 924         child = child->next;
 925     }
 926 }
 927
 928 GtkWidget *wxListBox::GetConnectWidget()
 929 {
 930     return GTK_WIDGET(m_list);
 931 }
 932
 933 bool wxListBox::IsOwnGtkWindow( GdkWindow *window )
 934 {
 935     if (GTK_WIDGET(m_list)->window == window) return TRUE;
 936
 937     GList *child = m_list->children;
 938     while (child)
 939     {
 940         GtkWidget *bin = GTK_WIDGET( child->data );
 941         if (bin->window == window) return TRUE;
 942         child = child->next;
 943     }
 944
 945     return FALSE;
 946 }
 947
 948 void wxListBox::ApplyWidgetStyle()
 949 {
 950     SetWidgetStyle();
 951
 952     if (m_backgroundColour.Ok())
 953     {
 954         GdkWindow *window = GTK_WIDGET(m_list)->window;
 955         if ( window )
 956         {
 957             m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 958             gdk_window_set_background( window, m_backgroundColour.GetColor() );
 959             gdk_window_clear( window );
 960         }
 961     }
 962
 963     GList *child = m_list->children;
 964     while (child)
 965     {
 966         gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );
 967
 968         GtkBin *bin = GTK_BIN( child->data );
 969         GtkWidget *label = GTK_WIDGET( bin->child );
 970         gtk_widget_set_style( label, m_widgetStyle );
 971
 972         child = child->next;
 973     }
 974 }
 975
 976 void wxListBox::OnInternalIdle()
 977 {
 978     wxCursor cursor = m_cursor;
 979     if (g_globalCursor.Ok()) cursor = g_globalCursor;
 980
 981     if (GTK_WIDGET(m_list)->window && cursor.Ok())
 982     {
 983         /* I now set the cursor the anew in every OnInternalIdle call
 984            as setting the cursor in a parent window also effects the
 985            windows above so that checking for the current cursor is
 986            not possible. */
 987
 988         gdk_window_set_cursor( GTK_WIDGET(m_list)->window, cursor.GetCursor() );
 989
 990         GList *child = m_list->children;
 991         while (child)
 992         {
 993             GtkBin *bin = GTK_BIN( child->data );
 994             GtkWidget *label = GTK_WIDGET( bin->child );
 995
 996             if (!label->window)
 997                 break;
 998             else
 999                 gdk_window_set_cursor( label->window, cursor.GetCursor() );
1000
1001             child = child->next;
1002         }
1003     }
1004
1005     UpdateWindowUI();
1006 }
1007
1008 wxSize wxListBox::DoGetBestSize() const
1009 {
1010     return wxSize(100, 110);
1011 }
1012
1013 #endif