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/dynarray.h"
  16 #include "wx/listbox.h"
  17 #include "wx/utils.h"
  18 #include "wx/intl.h"
  19 #include "wx/checklst.h"
  20
  21 #if wxUSE_DRAG_AND_DROP
  22 #include "wx/dnd.h"
  23 #endif
  24
  25 #include "gdk/gdk.h"
  26 #include "gtk/gtk.h"
  27
  28 //-------------------------------------------------------------------------
  29 // conditional compilation
  30 //-------------------------------------------------------------------------
  31
  32 #if (GTK_MINOR_VERSION == 1)
  33 #if (GTK_MICRO_VERSION >= 5)
  34 #define NEW_GTK_SCROLL_CODE
  35 #endif
  36 #endif
  37
  38 //-----------------------------------------------------------------------------
  39 // data
  40 //-----------------------------------------------------------------------------
  41
  42 extern bool   g_blockEventsOnDrag;
  43 extern bool   g_blockEventsOnScroll;
  44
  45 //-----------------------------------------------------------------------------
  46 // "button_press_event"
  47 //-----------------------------------------------------------------------------
  48
  49 static gint
  50 gtk_listbox_button_press_callback( GtkWidget *widget, GdkEventButton *gdk_event, wxListBox *listbox )
  51 {
  52     if (g_blockEventsOnDrag) return FALSE;
  53     if (g_blockEventsOnScroll) return FALSE;
  54
  55     if (!listbox->HasVMT()) return FALSE;
  56
  57     int sel = listbox->GetIndex( widget );
  58
  59     if ((listbox->m_hasCheckBoxes) && (gdk_event->x < 15) && (gdk_event->type != GDK_2BUTTON_PRESS))
  60     {
  61         wxCheckListBox *clb = (wxCheckListBox *)listbox;
  62
  63         clb->Check( sel, !clb->IsChecked(sel) );
  64
  65         wxCommandEvent event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
  66         event.SetEventObject( listbox );
  67         event.SetInt( sel );
  68         listbox->GetEventHandler()->ProcessEvent( event );
  69     }
  70
  71     if (gdk_event->type == GDK_2BUTTON_PRESS)
  72     {
  73         wxCommandEvent event( wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, listbox->GetId() );
  74         event.SetEventObject( listbox );
  75         event.SetInt( sel );
  76         listbox->GetEventHandler()->ProcessEvent( event );
  77     }
  78
  79     return FALSE;
  80 }
  81
  82 //-----------------------------------------------------------------------------
  83 // "key_press_event"
  84 //-----------------------------------------------------------------------------
  85
  86 static gint
  87 gtk_listbox_key_press_callback( GtkWidget *widget, GdkEventKey *gdk_event, wxListBox *listbox )
  88 {
  89     if (g_blockEventsOnDrag) return FALSE;
  90
  91     if (!listbox->HasVMT()) return FALSE;
  92
  93     if (gdk_event->keyval != ' ') return FALSE;
  94
  95     int sel = listbox->GetIndex( widget );
  96
  97     wxCheckListBox *clb = (wxCheckListBox *)listbox;
  98
  99     clb->Check( sel, !clb->IsChecked(sel) );
 100
 101     wxCommandEvent event( wxEVT_COMMAND_CHECKLISTBOX_TOGGLED, listbox->GetId() );
 102     event.SetEventObject( listbox );
 103     event.SetInt( sel );
 104     listbox->GetEventHandler()->ProcessEvent( event );
 105
 106     return FALSE;
 107 }
 108
 109 //-----------------------------------------------------------------------------
 110 // "select" and "deselect"
 111 //-----------------------------------------------------------------------------
 112
 113 static void gtk_listitem_select_callback( GtkWidget *WXUNUSED(widget), wxListBox *listbox )
 114 {
 115     if (!listbox->HasVMT()) return;
 116     if (g_blockEventsOnDrag) return;
 117
 118     wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, listbox->GetId() );
 119
 120     wxArrayInt aSelections;
 121     int count = listbox->GetSelections(aSelections);
 122     if ( count > 0 )
 123     {
 124         event.m_commandInt = aSelections[0] ;
 125         event.m_clientData = listbox->GetClientData( event.m_commandInt );
 126         wxString str(listbox->GetString(event.m_commandInt));
 127         if (str != "") event.m_commandString = copystring((char *)(const char *)str);
 128     }
 129     else
 130     {
 131         event.m_commandInt = -1 ;
 132         event.m_commandString = copystring("") ;
 133     }
 134
 135     event.SetEventObject( listbox );
 136
 137     listbox->GetEventHandler()->ProcessEvent( event );
 138     if (event.m_commandString) delete[] event.m_commandString ;
 139 }
 140
 141 //-----------------------------------------------------------------------------
 142 // wxListBox
 143 //-----------------------------------------------------------------------------
 144
 145 IMPLEMENT_DYNAMIC_CLASS(wxListBox,wxControl)
 146
 147 wxListBox::wxListBox()
 148 {
 149     m_list = (GtkList *) NULL;
 150     m_hasCheckBoxes = FALSE;
 151 }
 152
 153 bool wxListBox::Create( wxWindow *parent, wxWindowID id,
 154                         const wxPoint &pos, const wxSize &size,
 155                         int n, const wxString choices[],
 156                         long style, const wxValidator& validator, const wxString &name )
 157 {
 158     m_needParent = TRUE;
 159     m_acceptsFocus = TRUE;
 160
 161     PreCreation( parent, id, pos, size, style, name );
 162
 163     SetValidator( validator );
 164
 165     m_widget = gtk_scrolled_window_new( (GtkAdjustment*) NULL, (GtkAdjustment*) NULL );
 166     gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW(m_widget),
 167       GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
 168
 169     m_list = GTK_LIST( gtk_list_new() );
 170
 171     GtkSelectionMode mode = GTK_SELECTION_BROWSE;
 172     if (style & wxLB_MULTIPLE)
 173         mode = GTK_SELECTION_MULTIPLE;
 174     else if (style & wxLB_EXTENDED)
 175         mode = GTK_SELECTION_EXTENDED;
 176
 177     gtk_list_set_selection_mode( GTK_LIST(m_list), mode );
 178
 179 #ifdef NEW_GTK_SCROLL_CODE
 180     gtk_scrolled_window_add_with_viewport( GTK_SCROLLED_WINDOW(m_widget), GTK_WIDGET(m_list) );
 181 #else
 182     gtk_container_add( GTK_CONTAINER(m_widget), GTK_WIDGET(m_list) );
 183 #endif
 184
 185 #ifdef __WXDEBUG__
 186     debug_focus_in( m_widget, "wxListBox::m_widget", name );
 187
 188     debug_focus_in( GTK_WIDGET(m_list), "wxListBox::m_list", name );
 189
 190     GtkScrolledWindow *s_window = GTK_SCROLLED_WINDOW(m_widget);
 191
 192     debug_focus_in( s_window->hscrollbar, "wxWindow::hsrcollbar", name );
 193     debug_focus_in( s_window->vscrollbar, "wxWindow::vsrcollbar", name );
 194
 195 #ifdef NEW_GTK_SCROLL_CODE
 196     GtkViewport *viewport = GTK_VIEWPORT(s_window->child);
 197 #else
 198     GtkViewport *viewport = GTK_VIEWPORT(s_window->viewport);
 199 #endif
 200
 201     debug_focus_in( GTK_WIDGET(viewport), "wxWindow::viewport", name );
 202 #endif
 203
 204     gtk_widget_show( GTK_WIDGET(m_list) );
 205
 206     wxSize newSize = size;
 207     if (newSize.x == -1) newSize.x = 100;
 208     if (newSize.y == -1) newSize.y = 110;
 209     SetSize( newSize.x, newSize.y );
 210
 211     for (int i = 0; i < n; i++)
 212     {
 213         m_clientDataList.Append( (wxObject*) NULL );
 214         m_clientObjectList.Append( (wxObject*) NULL );
 215
 216         GtkWidget *list_item;
 217
 218         if (m_hasCheckBoxes)
 219         {
 220             wxString str = "[-] ";
 221             str += choices[i];
 222             list_item = gtk_list_item_new_with_label( str );
 223         }
 224         else
 225         {
 226             list_item = gtk_list_item_new_with_label( choices[i] );
 227         }
 228
 229 #ifdef __WXDEBUG__
 230         debug_focus_in( list_item, "wxListBox::list_item", name );
 231 #endif
 232
 233         gtk_container_add( GTK_CONTAINER(m_list), list_item );
 234
 235         gtk_signal_connect( GTK_OBJECT(list_item), "select",
 236           GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 237
 238         if (style & wxLB_MULTIPLE)
 239             gtk_signal_connect( GTK_OBJECT(list_item), "deselect",
 240               GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 241
 242         gtk_signal_connect( GTK_OBJECT(list_item),
 243                             "button_press_event",
 244                             (GtkSignalFunc)gtk_listbox_button_press_callback,
 245                             (gpointer) this );
 246
 247         gtk_signal_connect( GTK_OBJECT(list_item),
 248                             "key_press_event",
 249                             (GtkSignalFunc)gtk_listbox_key_press_callback,
 250                             (gpointer)this );
 251
 252         ConnectWidget( list_item );
 253
 254         gtk_widget_show( list_item );
 255     }
 256
 257     m_parent->AddChild( this );
 258
 259     (m_parent->m_insertCallback)( m_parent, this );
 260
 261     PostCreation();
 262
 263     gtk_widget_realize( GTK_WIDGET(m_list) );
 264
 265     SetBackgroundColour( parent->GetBackgroundColour() );
 266     SetForegroundColour( parent->GetForegroundColour() );
 267
 268     Show( TRUE );
 269
 270     return TRUE;
 271 }
 272
 273 wxListBox::~wxListBox()
 274 {
 275     Clear();
 276 }
 277
 278 void wxListBox::AppendCommon( const wxString &item )
 279 {
 280     wxCHECK_RET( m_list != NULL, "invalid listbox" );
 281
 282     GtkWidget *list_item;
 283
 284     if (m_hasCheckBoxes)
 285     {
 286         wxString str = "[-] ";
 287         str += item;
 288         list_item = gtk_list_item_new_with_label( str );
 289     }
 290     else
 291     {
 292         list_item = gtk_list_item_new_with_label( item );
 293     }
 294
 295     gtk_signal_connect( GTK_OBJECT(list_item), "select",
 296       GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 297
 298     if (GetWindowStyleFlag() & wxLB_MULTIPLE)
 299         gtk_signal_connect( GTK_OBJECT(list_item), "deselect",
 300           GTK_SIGNAL_FUNC(gtk_listitem_select_callback), (gpointer)this );
 301
 302     gtk_container_add( GTK_CONTAINER(m_list), list_item );
 303
 304     if (m_widgetStyle) ApplyWidgetStyle();
 305
 306     gtk_signal_connect( GTK_OBJECT(list_item),
 307                         "button_press_event",
 308                         (GtkSignalFunc)gtk_listbox_button_press_callback,
 309                         (gpointer) this );
 310
 311     gtk_signal_connect( GTK_OBJECT(list_item),
 312                         "key_press_event",
 313                         (GtkSignalFunc)gtk_listbox_key_press_callback,
 314                         (gpointer)this );
 315
 316     gtk_widget_show( list_item );
 317
 318     ConnectWidget( list_item );
 319
 320 #if wxUSE_DRAG_AND_DROP
 321 #ifndef NEW_GTK_DND_CODE
 322     if (m_dropTarget) m_dropTarget->RegisterWidget( list_item );
 323 #endif
 324 #endif
 325 }
 326
 327 void wxListBox::Append( const wxString &item )
 328 {
 329     m_clientDataList.Append( (wxObject*) NULL );
 330     m_clientObjectList.Append( (wxObject*) NULL );
 331
 332     AppendCommon( item );
 333 }
 334
 335 void wxListBox::Append( const wxString &item, void *clientData )
 336 {
 337     m_clientDataList.Append( (wxObject*) clientData );
 338     m_clientObjectList.Append( (wxObject*) NULL );
 339
 340     AppendCommon( item );
 341 }
 342
 343 void wxListBox::Append( const wxString &item, wxClientData *clientData )
 344 {
 345     m_clientObjectList.Append( (wxObject*) clientData );
 346     m_clientDataList.Append( (wxObject*) NULL );
 347
 348     AppendCommon( item );
 349 }
 350
 351 void wxListBox::SetClientData( int n, void* clientData )
 352 {
 353     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 354
 355     wxNode *node = m_clientDataList.Nth( n );
 356     if (!node) return;
 357
 358     node->SetData( (wxObject*) clientData );
 359 }
 360
 361 void* wxListBox::GetClientData( int n )
 362 {
 363     wxCHECK_MSG( m_widget != NULL, NULL, "invalid combobox" );
 364
 365     wxNode *node = m_clientDataList.Nth( n );
 366     if (!node) return NULL;
 367
 368     return node->Data();
 369 }
 370
 371 void wxListBox::SetClientObject( int n, wxClientData* clientData )
 372 {
 373     wxCHECK_RET( m_widget != NULL, "invalid combobox" );
 374
 375     wxNode *node = m_clientObjectList.Nth( n );
 376     if (!node) return;
 377
 378     wxClientData *cd = (wxClientData*) node->Data();
 379     if (cd) delete cd;
 380
 381     node->SetData( (wxObject*) clientData );
 382 }
 383
 384 wxClientData* wxListBox::GetClientObject( int n )
 385 {
 386     wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, "invalid combobox" );
 387
 388     wxNode *node = m_clientObjectList.Nth( n );
 389     if (!node) return (wxClientData*) NULL;
 390
 391     return (wxClientData*) node->Data();
 392 }
 393
 394 void wxListBox::Clear()
 395 {
 396     wxCHECK_RET( m_list != NULL, "invalid listbox" );
 397
 398     gtk_list_clear_items( m_list, 0, Number() );
 399
 400     wxNode *node = m_clientObjectList.First();
 401     while (node)
 402     {
 403         wxClientData *cd = (wxClientData*)node->Data();
 404         if (cd) delete cd;
 405         node = node->Next();
 406     }
 407     m_clientObjectList.Clear();
 408
 409     m_clientDataList.Clear();
 410 }
 411
 412 void wxListBox::Delete( int n )
 413 {
 414     wxCHECK_RET( m_list != NULL, "invalid listbox" );
 415
 416     GList *child = g_list_nth( m_list->children, n );
 417
 418     wxCHECK_RET( child, "wrong listbox index" );
 419
 420     GList *list = g_list_append( (GList*) NULL, child->data );
 421     gtk_list_remove_items( m_list, list );
 422     g_list_free( list );
 423
 424     wxNode *node = m_clientObjectList.Nth( n );
 425     if (node)
 426     {
 427         wxClientData *cd = (wxClientData*)node->Data();
 428         if (cd) delete cd;
 429         m_clientObjectList.DeleteNode( node );
 430     }
 431
 432     node = m_clientDataList.Nth( n );
 433     if (node)
 434     {
 435         m_clientDataList.DeleteNode( node );
 436     }
 437 }
 438
 439 void wxListBox::Deselect( int n )
 440 {
 441     wxCHECK_RET( m_list != NULL, "invalid listbox" );
 442
 443     gtk_list_unselect_item( m_list, n );
 444 }
 445
 446 int wxListBox::FindString( const wxString &item ) const
 447 {
 448     wxCHECK_MSG( m_list != NULL, -1, "invalid listbox" );
 449
 450     GList *child = m_list->children;
 451     int count = 0;
 452     while (child)
 453     {
 454         GtkBin *bin = GTK_BIN( child->data );
 455         GtkLabel *label = GTK_LABEL( bin->child );
 456
 457         wxString str = label->label;
 458         if (m_hasCheckBoxes) str.Remove( 0, 4 );
 459
 460         if (str == item) return count;
 461
 462         count++;
 463         child = child->next;
 464     }
 465
 466   // it's not an error if the string is not found -> no wxCHECK
 467
 468   return -1;
 469 }
 470
 471 int wxListBox::GetSelection() const
 472 {
 473     wxCHECK_MSG( m_list != NULL, -1, "invalid listbox" );
 474
 475     GList *child = m_list->children;
 476     int count = 0;
 477     while (child)
 478     {
 479         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED) return count;
 480         count++;
 481         child = child->next;
 482     }
 483     return -1;
 484 }
 485
 486 int wxListBox::GetSelections( wxArrayInt& aSelections ) const
 487 {
 488     wxCHECK_MSG( m_list != NULL, -1, "invalid listbox" );
 489
 490     // get the number of selected items first
 491     GList *child = m_list->children;
 492     int count = 0;
 493     for (child = m_list->children; child != NULL; child = child->next)
 494     {
 495         if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
 496             count++;
 497     }
 498
 499     aSelections.Empty();
 500
 501     if (count > 0)
 502     {
 503         // now fill the list
 504         aSelections.Alloc(count); // optimization attempt
 505         int i = 0;
 506         for (child = m_list->children; child != NULL; child = child->next, i++)
 507         {
 508             if (GTK_WIDGET(child->data)->state == GTK_STATE_SELECTED)
 509                  aSelections.Add(i);
 510         }
 511     }
 512
 513     return count;
 514 }
 515
 516 wxString wxListBox::GetString( int n ) const
 517 {
 518     wxCHECK_MSG( m_list != NULL, "", "invalid listbox" );
 519
 520     GList *child = g_list_nth( m_list->children, n );
 521     if (child)
 522     {
 523         GtkBin *bin = GTK_BIN( child->data );
 524         GtkLabel *label = GTK_LABEL( bin->child );
 525
 526         wxString str = label->label;
 527         if (m_hasCheckBoxes) str.Remove( 0, 4 );
 528
 529         return str;
 530     }
 531     wxFAIL_MSG("wrong listbox index");
 532     return "";
 533 }
 534
 535 wxString wxListBox::GetStringSelection() const
 536 {
 537     wxCHECK_MSG( m_list != NULL, "", "invalid listbox" );
 538
 539     GList *selection = m_list->selection;
 540     if (selection)
 541     {
 542         GtkBin *bin = GTK_BIN( selection->data );
 543         GtkLabel *label = GTK_LABEL( bin->child );
 544
 545         wxString str = label->label;
 546         if (m_hasCheckBoxes) str.Remove( 0, 4 );
 547
 548         return str;
 549     }
 550
 551     wxFAIL_MSG("no listbox selection available");
 552     return "";
 553 }
 554
 555 int wxListBox::Number()
 556 {
 557     wxCHECK_MSG( m_list != NULL, -1, "invalid listbox" );
 558
 559     GList *child = m_list->children;
 560     int count = 0;
 561     while (child) { count++; child = child->next; }
 562     return count;
 563 }
 564
 565 bool wxListBox::Selected( int n )
 566 {
 567     wxCHECK_MSG( m_list != NULL, FALSE, "invalid listbox" );
 568
 569     GList *target = g_list_nth( m_list->children, n );
 570     if (target)
 571     {
 572         GList *child = m_list->selection;
 573         while (child)
 574         {
 575             if (child->data == target->data) return TRUE;
 576             child = child->next;
 577         }
 578     }
 579     wxFAIL_MSG("wrong listbox index");
 580     return FALSE;
 581 }
 582
 583 void wxListBox::Set( int WXUNUSED(n), const wxString *WXUNUSED(choices) )
 584 {
 585     wxFAIL_MSG("wxListBox::Set not implemented");
 586 }
 587
 588 void wxListBox::SetFirstItem( int WXUNUSED(n) )
 589 {
 590     wxFAIL_MSG("wxListBox::SetFirstItem not implemented");
 591 }
 592
 593 void wxListBox::SetFirstItem( const wxString &WXUNUSED(item) )
 594 {
 595     wxFAIL_MSG("wxListBox::SetFirstItem not implemented");
 596 }
 597
 598 void wxListBox::SetSelection( int n, bool select )
 599 {
 600     wxCHECK_RET( m_list != NULL, "invalid listbox" );
 601
 602     if (select)
 603         gtk_list_select_item( m_list, n );
 604     else
 605         gtk_list_unselect_item( m_list, n );
 606 }
 607
 608 void wxListBox::SetString( int n, const wxString &string )
 609 {
 610     wxCHECK_RET( m_list != NULL, "invalid listbox" );
 611
 612     GList *child = g_list_nth( m_list->children, n );
 613     if (child)
 614     {
 615         GtkBin *bin = GTK_BIN( child->data );
 616         GtkLabel *label = GTK_LABEL( bin->child );
 617
 618         wxString str;
 619         if (m_hasCheckBoxes) str += "[-] ";
 620         str += string;
 621
 622         gtk_label_set( label, str );
 623     }
 624     else
 625     {
 626         wxFAIL_MSG("wrong listbox index");
 627     }
 628 }
 629
 630 void wxListBox::SetStringSelection( const wxString &string, bool select )
 631 {
 632     wxCHECK_RET( m_list != NULL, "invalid listbox" );
 633
 634     SetSelection( FindString(string), select );
 635 }
 636
 637 int wxListBox::GetIndex( GtkWidget *item ) const
 638 {
 639     if (item)
 640     {
 641         GList *child = m_list->children;
 642         int count = 0;
 643         while (child)
 644         {
 645             if (GTK_WIDGET(child->data) == item) return count;
 646             count++;
 647             child = child->next;
 648         }
 649     }
 650     return -1;
 651 }
 652
 653 #if wxUSE_DRAG_AND_DROP
 654 void wxListBox::SetDropTarget( wxDropTarget *dropTarget )
 655 {
 656     wxCHECK_RET( m_list != NULL, "invalid listbox" );
 657
 658 #ifndef NEW_GTK_DND_CODE
 659     if (m_dropTarget)
 660     {
 661         GList *child = m_list->children;
 662         while (child)
 663         {
 664             m_dropTarget->UnregisterWidget( GTK_WIDGET( child->data ) );
 665             child = child->next;
 666         }
 667     }
 668 #endif
 669
 670     wxWindow::SetDropTarget( dropTarget );
 671
 672 #ifndef NEW_GTK_DND_CODE
 673     if (m_dropTarget)
 674     {
 675         GList *child = m_list->children;
 676         while (child)
 677         {
 678             m_dropTarget->RegisterWidget( GTK_WIDGET( child->data ) );
 679             child = child->next;
 680         }
 681     }
 682 #endif
 683 }
 684 #endif
 685
 686 GtkWidget *wxListBox::GetConnectWidget()
 687 {
 688     return GTK_WIDGET(m_list);
 689 }
 690
 691 bool wxListBox::IsOwnGtkWindow( GdkWindow *window )
 692 {
 693     if (wxWindow::IsOwnGtkWindow( window )) return TRUE;
 694
 695     GList *child = m_list->children;
 696     while (child)
 697     {
 698         GtkWidget *bin = GTK_WIDGET( child->data );
 699         if (bin->window == window) return TRUE;
 700         child = child->next;
 701     }
 702
 703     return FALSE;
 704 }
 705
 706 void wxListBox::ApplyWidgetStyle()
 707 {
 708     SetWidgetStyle();
 709
 710     if (m_backgroundColour.Ok())
 711     {
 712         GdkWindow *window = GTK_WIDGET(m_list)->window;
 713         m_backgroundColour.CalcPixel( gdk_window_get_colormap( window ) );
 714         gdk_window_set_background( window, m_backgroundColour.GetColor() );
 715         gdk_window_clear( window );
 716     }
 717
 718     GList *child = m_list->children;
 719     while (child)
 720     {
 721         gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );
 722
 723         GtkBin *bin = GTK_BIN( child->data );
 724         GtkWidget *label = GTK_WIDGET( bin->child );
 725         gtk_widget_set_style( label, m_widgetStyle );
 726
 727         child = child->next;
 728     }
 729 }