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