src/gtk/combobox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        combobox.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifdef __GNUG__
  11 #pragma implementation "combobox.h"
  12 #endif
  13
  14 #include "wx/combobox.h"
  15
  16 #if wxUSE_COMBOBOX
  17
  18 #include "wx/settings.h"
  19 #include "wx/intl.h"
  20
  21 #include "wx/textctrl.h"    // for wxEVT_COMMAND_TEXT_UPDATED
  22
  23 #include "wx/gtk/private.h"
  24
  25 //-----------------------------------------------------------------------------
  26 // idle system
  27 //-----------------------------------------------------------------------------
  28
  29 extern void wxapp_install_idle_handler();
  30 extern bool g_isIdle;
  31
  32 //-----------------------------------------------------------------------------
  33 // data
  34 //-----------------------------------------------------------------------------
  35
  36 extern bool   g_blockEventsOnDrag;
  37
  38 //-----------------------------------------------------------------------------
  39 // "select"
  40 //-----------------------------------------------------------------------------
  41
  42 static void
  43 gtk_combo_clicked_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
  44 {
  45     if (g_isIdle) wxapp_install_idle_handler();
  46
  47     if (!combo->m_hasVMT) return;
  48
  49     if (g_blockEventsOnDrag) return;
  50
  51     if (combo->m_alreadySent)
  52     {
  53         combo->m_alreadySent = FALSE;
  54         return;
  55     }
  56
  57     combo->m_alreadySent = TRUE;
  58
  59     int curSelection = combo->GetSelection();
  60
  61     if (combo->m_prevSelection != curSelection)
  62     {
  63         GtkWidget *list = GTK_COMBO(combo->m_widget)->list;
  64         gtk_list_unselect_item( GTK_LIST(list), combo->m_prevSelection );
  65     }
  66
  67     combo->m_prevSelection = curSelection;
  68
  69     wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, combo->GetId() );
  70     event.SetInt( curSelection );
  71     event.SetString( combo->GetStringSelection() );
  72     event.SetEventObject( combo );
  73
  74     combo->GetEventHandler()->ProcessEvent( event );
  75 }
  76
  77 //-----------------------------------------------------------------------------
  78 //  "changed"
  79 //-----------------------------------------------------------------------------
  80
  81 static void
  82 gtk_text_changed_callback( GtkWidget *WXUNUSED(widget), wxComboBox *combo )
  83 {
  84     if (g_isIdle) wxapp_install_idle_handler();
  85
  86     if (!combo->m_hasVMT) return;
  87
  88     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, combo->GetId() );
  89     event.SetString( combo->GetValue() );
  90     event.SetEventObject( combo );
  91     combo->GetEventHandler()->ProcessEvent( event );
  92 }
  93
  94 //-----------------------------------------------------------------------------
  95 // wxComboBox
  96 //-----------------------------------------------------------------------------
  97
  98 IMPLEMENT_DYNAMIC_CLASS(wxComboBox,wxControl)
  99
 100 BEGIN_EVENT_TABLE(wxComboBox, wxControl)
 101     EVT_SIZE(wxComboBox::OnSize)
 102     EVT_CHAR(wxComboBox::OnChar)
 103 END_EVENT_TABLE()
 104
 105 bool wxComboBox::Create( wxWindow *parent, wxWindowID id, const wxString& value,
 106                          const wxPoint& pos, const wxSize& size,
 107                          int n, const wxString choices[],
 108                          long style, const wxValidator& validator,
 109                          const wxString& name )
 110 {
 111     m_alreadySent = FALSE;
 112     m_needParent = TRUE;
 113     m_acceptsFocus = TRUE;
 114     m_prevSelection = 0;
 115
 116     if (!PreCreation( parent, pos, size ) ||
 117         !CreateBase( parent, id, pos, size, style, validator, name ))
 118     {
 119         wxFAIL_MSG( wxT("wxComboBox creation failed") );
 120         return FALSE;
 121     }
 122
 123     m_widget = gtk_combo_new();
 124
 125     // make it more useable
 126     gtk_combo_set_use_arrows_always( GTK_COMBO(m_widget), TRUE );
 127
 128     // and case-sensitive
 129     gtk_combo_set_case_sensitive( GTK_COMBO(m_widget), TRUE );
 130
 131
 132     GtkWidget *list = GTK_COMBO(m_widget)->list;
 133
 134 #ifndef __WXGTK20__
 135     // gtk_list_set_selection_mode( GTK_LIST(list), GTK_SELECTION_MULTIPLE );
 136 #endif
 137
 138     for (int i = 0; i < n; i++)
 139     {
 140         /* don't send first event, which GTK sends aways when
 141            inserting the first item */
 142         m_alreadySent = TRUE;
 143
 144         GtkWidget *list_item = gtk_list_item_new_with_label( wxGTK_CONV( choices[i] ) );
 145
 146         m_clientDataList.Append( (wxObject*)NULL );
 147         m_clientObjectList.Append( (wxObject*)NULL );
 148
 149         gtk_container_add( GTK_CONTAINER(list), list_item );
 150
 151         gtk_signal_connect( GTK_OBJECT(list_item), "select",
 152            GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
 153
 154         gtk_widget_show( list_item );
 155     }
 156
 157     m_parent->DoAddChild( this );
 158
 159     m_focusWidget = GTK_COMBO(m_widget)->entry;
 160
 161     PostCreation();
 162
 163     ConnectWidget( GTK_COMBO(m_widget)->button );
 164
 165     if (!value.IsNull()) SetValue( value );
 166
 167     if (style & wxCB_READONLY)
 168         gtk_entry_set_editable( GTK_ENTRY( GTK_COMBO(m_widget)->entry ), FALSE );
 169
 170     gtk_signal_connect( GTK_OBJECT(GTK_COMBO(m_widget)->entry), "changed",
 171       GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
 172
 173     wxSize size_best( DoGetBestSize() );
 174     wxSize new_size( size );
 175     if (new_size.x == -1)
 176         new_size.x = size_best.x;
 177     if (new_size.y == -1)
 178         new_size.y = size_best.y;
 179     if (new_size.y > size_best.y)
 180         new_size.y = size_best.y;
 181     if ((new_size.x != size.x) || (new_size.y != size.y))
 182     {
 183         SetSize( new_size.x, new_size.y );
 184
 185         // This is required for tool bar support
 186         gtk_widget_set_usize( m_widget, new_size.x, new_size.y );
 187     }
 188
 189
 190     SetBackgroundColour( wxSystemSettings::GetColour( wxSYS_COLOUR_WINDOW ) );
 191     SetForegroundColour( parent->GetForegroundColour() );
 192
 193     Show( TRUE );
 194
 195     return TRUE;
 196 }
 197
 198 wxComboBox::~wxComboBox()
 199 {
 200     wxNode *node = m_clientObjectList.GetFirst();
 201     while (node)
 202     {
 203         wxClientData *cd = (wxClientData*)node->GetData();
 204         if (cd) delete cd;
 205         node = node->GetNext();
 206     }
 207     m_clientObjectList.Clear();
 208
 209     m_clientDataList.Clear();
 210 }
 211
 212 void wxComboBox::SetFocus()
 213 {
 214     if ( m_hasFocus )
 215     {
 216         // don't do anything if we already have focus
 217         return;
 218     }
 219
 220     gtk_widget_grab_focus( m_focusWidget );
 221 }
 222
 223 void wxComboBox::AppendCommon( const wxString &item )
 224 {
 225     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
 226
 227     GtkWidget *list = GTK_COMBO(m_widget)->list;
 228
 229     GtkWidget *list_item = gtk_list_item_new_with_label( wxGTK_CONV( item ) );
 230
 231     gtk_container_add( GTK_CONTAINER(list), list_item );
 232
 233     gtk_signal_connect( GTK_OBJECT(list_item), "select",
 234       GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
 235
 236     if (GTK_WIDGET_REALIZED(m_widget))
 237     {
 238         gtk_widget_realize( list_item );
 239         gtk_widget_realize( GTK_BIN(list_item)->child );
 240
 241         if (m_widgetStyle) ApplyWidgetStyle();
 242     }
 243
 244     gtk_widget_show( list_item );
 245 }
 246
 247 void wxComboBox::Append( const wxString &item )
 248 {
 249     m_clientDataList.Append( (wxObject*) NULL );
 250     m_clientObjectList.Append( (wxObject*) NULL );
 251
 252     AppendCommon( item );
 253 }
 254
 255 void wxComboBox::Append( const wxString &item, void *clientData )
 256 {
 257     m_clientDataList.Append( (wxObject*) clientData );
 258     m_clientObjectList.Append( (wxObject*)NULL );
 259
 260     AppendCommon( item );
 261 }
 262
 263 void wxComboBox::Append( const wxString &item, wxClientData *clientData )
 264 {
 265     m_clientDataList.Append( (wxObject*) NULL );
 266     m_clientObjectList.Append( (wxObject*) clientData );
 267
 268     AppendCommon( item );
 269 }
 270
 271 void wxComboBox::SetClientData( int n, void* clientData )
 272 {
 273     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
 274
 275     wxNode *node = m_clientDataList.Item( n );
 276     if (!node) return;
 277
 278     node->SetData( (wxObject*) clientData );
 279 }
 280
 281 void* wxComboBox::GetClientData( int n )
 282 {
 283     wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid combobox") );
 284
 285     wxNode *node = m_clientDataList.Item( n );
 286     if (!node) return NULL;
 287
 288     return node->GetData();
 289 }
 290
 291 void wxComboBox::SetClientObject( int n, wxClientData* clientData )
 292 {
 293     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
 294
 295     wxNode *node = m_clientObjectList.Item( n );
 296     if (!node) return;
 297
 298     wxClientData *cd = (wxClientData*) node->GetData();
 299     if (cd) delete cd;
 300
 301     node->SetData( (wxObject*) clientData );
 302 }
 303
 304 wxClientData* wxComboBox::GetClientObject( int n )
 305 {
 306     wxCHECK_MSG( m_widget != NULL, (wxClientData*)NULL, wxT("invalid combobox") );
 307
 308     wxNode *node = m_clientObjectList.Item( n );
 309     if (!node) return (wxClientData*) NULL;
 310
 311     return (wxClientData*) node->GetData();
 312 }
 313
 314 void wxComboBox::Clear()
 315 {
 316     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
 317
 318     GtkWidget *list = GTK_COMBO(m_widget)->list;
 319     gtk_list_clear_items( GTK_LIST(list), 0, Number() );
 320
 321     wxNode *node = m_clientObjectList.GetFirst();
 322     while (node)
 323     {
 324         wxClientData *cd = (wxClientData*)node->GetData();
 325         if (cd) delete cd;
 326         node = node->GetNext();
 327     }
 328     m_clientObjectList.Clear();
 329
 330     m_clientDataList.Clear();
 331 }
 332
 333 void wxComboBox::Delete( int n )
 334 {
 335     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
 336
 337     GtkList *listbox = GTK_LIST( GTK_COMBO(m_widget)->list );
 338
 339     GList *child = g_list_nth( listbox->children, n );
 340
 341     if (!child)
 342     {
 343         wxFAIL_MSG(wxT("wrong index"));
 344         return;
 345     }
 346
 347     GList *list = g_list_append( (GList*) NULL, child->data );
 348     gtk_list_remove_items( listbox, list );
 349     g_list_free( list );
 350
 351     wxNode *node = m_clientObjectList.Item( n );
 352     if (node)
 353     {
 354         wxClientData *cd = (wxClientData*)node->GetData();
 355         if (cd) delete cd;
 356         m_clientObjectList.DeleteNode( node );
 357     }
 358
 359     node = m_clientDataList.Item( n );
 360     if (node)
 361     {
 362         m_clientDataList.DeleteNode( node );
 363     }
 364 }
 365
 366 int wxComboBox::FindString( const wxString &item )
 367 {
 368     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
 369
 370     GtkWidget *list = GTK_COMBO(m_widget)->list;
 371
 372     GList *child = GTK_LIST(list)->children;
 373     int count = 0;
 374     while (child)
 375     {
 376         GtkBin *bin = GTK_BIN( child->data );
 377         GtkLabel *label = GTK_LABEL( bin->child );
 378 #ifdef __WXGTK20__
 379         wxString str( wxGTK_CONV_BACK( gtk_label_get_text(label) ) );
 380 #else
 381         wxString str( label->label );
 382 #endif
 383         if (item == str)
 384             return count;
 385
 386         count++;
 387         child = child->next;
 388     }
 389
 390     return wxNOT_FOUND;
 391 }
 392
 393 int wxComboBox::GetSelection() const
 394 {
 395     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid combobox") );
 396
 397     GtkWidget *list = GTK_COMBO(m_widget)->list;
 398
 399     GList *selection = GTK_LIST(list)->selection;
 400     if (selection)
 401     {
 402         GList *child = GTK_LIST(list)->children;
 403         int count = 0;
 404         while (child)
 405         {
 406             if (child->data == selection->data) return count;
 407             count++;
 408             child = child->next;
 409         }
 410     }
 411
 412     return -1;
 413 }
 414
 415 wxString wxComboBox::GetString( int n ) const
 416 {
 417     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );
 418
 419     GtkWidget *list = GTK_COMBO(m_widget)->list;
 420
 421     wxString str;
 422     GList *child = g_list_nth( GTK_LIST(list)->children, n );
 423     if (child)
 424     {
 425         GtkBin *bin = GTK_BIN( child->data );
 426         GtkLabel *label = GTK_LABEL( bin->child );
 427 #ifdef __WXGTK20__
 428         str = wxGTK_CONV_BACK( gtk_label_get_text(label) );
 429 #else
 430         str = wxString( label->label );
 431 #endif
 432     }
 433     else
 434     {
 435         wxFAIL_MSG( wxT("wxComboBox: wrong index") );
 436     }
 437
 438     return str;
 439 }
 440
 441 wxString wxComboBox::GetStringSelection() const
 442 {
 443     wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid combobox") );
 444
 445     GtkWidget *list = GTK_COMBO(m_widget)->list;
 446
 447     GList *selection = GTK_LIST(list)->selection;
 448     if (selection)
 449     {
 450         GtkBin *bin = GTK_BIN( selection->data );
 451         GtkLabel *label = GTK_LABEL( bin->child );
 452 #ifdef __WXGTK20__
 453         wxString tmp( wxGTK_CONV_BACK( gtk_label_get_text(label) ) );
 454 #else
 455         wxString tmp( label->label );
 456 #endif
 457         return tmp;
 458     }
 459
 460     wxFAIL_MSG( wxT("wxComboBox: no selection") );
 461
 462     return wxT("");
 463 }
 464
 465 int wxComboBox::Number() const
 466 {
 467     wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid combobox") );
 468
 469     GtkWidget *list = GTK_COMBO(m_widget)->list;
 470
 471     GList *child = GTK_LIST(list)->children;
 472     int count = 0;
 473     while (child) { count++; child = child->next; }
 474     return count;
 475 }
 476
 477 void wxComboBox::SetSelection( int n )
 478 {
 479     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
 480
 481     DisableEvents();
 482
 483     GtkWidget *list = GTK_COMBO(m_widget)->list;
 484     gtk_list_unselect_item( GTK_LIST(list), m_prevSelection );
 485     gtk_list_select_item( GTK_LIST(list), n );
 486     m_prevSelection = n;
 487
 488     EnableEvents();
 489 }
 490
 491 void wxComboBox::SetStringSelection( const wxString &string )
 492 {
 493     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
 494
 495     int res = FindString( string );
 496     if (res == -1) return;
 497     SetSelection( res );
 498 }
 499
 500 wxString wxComboBox::GetValue() const
 501 {
 502     GtkEntry *entry = GTK_ENTRY( GTK_COMBO(m_widget)->entry );
 503     wxString tmp( wxGTK_CONV_BACK( gtk_entry_get_text( entry ) ) );
 504
 505 #if 0
 506     for (int i = 0; i < wxStrlen(tmp.c_str()) +1; i++)
 507     {
 508         wxChar c = tmp[i];
 509         printf( "%d ", (int) (c) );
 510     }
 511     printf( "\n" );
 512 #endif
 513
 514     return tmp;
 515 }
 516
 517 void wxComboBox::SetValue( const wxString& value )
 518 {
 519     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
 520
 521     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 522     wxString tmp = wxT("");
 523     if (!value.IsNull()) tmp = value;
 524     gtk_entry_set_text( GTK_ENTRY(entry), wxGTK_CONV( tmp ) );
 525 }
 526
 527 void wxComboBox::Copy()
 528 {
 529     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
 530
 531     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 532     gtk_editable_copy_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG );
 533 }
 534
 535 void wxComboBox::Cut()
 536 {
 537     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
 538
 539     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 540     gtk_editable_cut_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG );
 541 }
 542
 543 void wxComboBox::Paste()
 544 {
 545     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
 546
 547     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 548     gtk_editable_paste_clipboard( GTK_EDITABLE(entry) DUMMY_CLIPBOARD_ARG);
 549 }
 550
 551 void wxComboBox::SetInsertionPoint( long pos )
 552 {
 553     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
 554
 555     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 556     gtk_entry_set_position( GTK_ENTRY(entry), (int)pos );
 557 }
 558
 559 void wxComboBox::SetInsertionPointEnd()
 560 {
 561     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
 562
 563     SetInsertionPoint( -1 );
 564 }
 565
 566 long wxComboBox::GetInsertionPoint() const
 567 {
 568     return (long) GET_EDITABLE_POS( GTK_COMBO(m_widget)->entry );
 569 }
 570
 571 long wxComboBox::GetLastPosition() const
 572 {
 573     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 574     int pos = GTK_ENTRY(entry)->text_length;
 575     return (long) pos-1;
 576 }
 577
 578 void wxComboBox::Replace( long from, long to, const wxString& value )
 579 {
 580     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
 581
 582     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 583     gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
 584     if (value.IsNull()) return;
 585     gint pos = (gint)to;
 586
 587 #if wxUSE_UNICODE
 588     wxCharBuffer buffer = wxConvUTF8.cWX2MB( value );
 589     gtk_editable_insert_text( GTK_EDITABLE(entry), (const char*) buffer, strlen( (const char*) buffer ), &pos );
 590 #else
 591     gtk_editable_insert_text( GTK_EDITABLE(entry), value.c_str(), value.Length(), &pos );
 592 #endif
 593 }
 594
 595 void wxComboBox::Remove(long from, long to)
 596 {
 597     wxCHECK_RET( m_widget != NULL, wxT("invalid combobox") );
 598
 599     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 600     gtk_editable_delete_text( GTK_EDITABLE(entry), (gint)from, (gint)to );
 601 }
 602
 603 void wxComboBox::SetSelection( long from, long to )
 604 {
 605     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 606     gtk_editable_select_region( GTK_EDITABLE(entry), (gint)from, (gint)to );
 607 }
 608
 609 void wxComboBox::SetEditable( bool editable )
 610 {
 611     GtkWidget *entry = GTK_COMBO(m_widget)->entry;
 612     gtk_entry_set_editable( GTK_ENTRY(entry), editable );
 613 }
 614
 615 void wxComboBox::OnChar( wxKeyEvent &event )
 616 {
 617     if ( event.GetKeyCode() == WXK_RETURN )
 618     {
 619         wxString value = GetValue();
 620
 621         if ( Number() == 0 )
 622         {
 623             // make Enter generate "selected" event if there is only one item
 624             // in the combobox - without it, it's impossible to select it at
 625             // all!
 626             wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
 627             event.SetInt( 0 );
 628             event.SetString( value );
 629             event.SetEventObject( this );
 630             GetEventHandler()->ProcessEvent( event );
 631         }
 632         else
 633         {
 634             // add the item to the list if it's not there yet
 635             if ( FindString(value) == wxNOT_FOUND )
 636             {
 637                 Append(value);
 638                 SetStringSelection(value);
 639
 640                 // and generate the selected event for it
 641                 wxCommandEvent event( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
 642                 event.SetInt( Number() - 1 );
 643                 event.SetString( value );
 644                 event.SetEventObject( this );
 645                 GetEventHandler()->ProcessEvent( event );
 646             }
 647
 648             // This will invoke the dialog default action, such
 649             // as the clicking the default button.
 650
 651             wxWindow *top_frame = m_parent;
 652             while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
 653             top_frame = top_frame->GetParent();
 654
 655             if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
 656             {
 657                 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
 658
 659                 if (window->default_widget)
 660                 {
 661                     gtk_widget_activate (window->default_widget);
 662                     return;
 663                 }
 664             }
 665
 666             return;
 667         }
 668     }
 669
 670     event.Skip();
 671 }
 672
 673 void wxComboBox::DisableEvents()
 674 {
 675     GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
 676     GList *child = list->children;
 677     while (child)
 678     {
 679         gtk_signal_disconnect_by_func( GTK_OBJECT(child->data),
 680           GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
 681
 682         child = child->next;
 683     }
 684 }
 685
 686 void wxComboBox::EnableEvents()
 687 {
 688     GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
 689     GList *child = list->children;
 690     while (child)
 691     {
 692         gtk_signal_connect( GTK_OBJECT(child->data), "select",
 693           GTK_SIGNAL_FUNC(gtk_combo_clicked_callback), (gpointer)this );
 694
 695         child = child->next;
 696     }
 697 }
 698
 699 void wxComboBox::OnSize( wxSizeEvent &event )
 700 {
 701     event.Skip();
 702
 703 #if 0
 704     int w = 21;
 705     gtk_widget_set_usize( GTK_COMBO(m_widget)->entry, m_width-w-1, m_height );
 706
 707     gtk_widget_set_uposition( GTK_COMBO(m_widget)->button, m_x+m_width-w, m_y );
 708     gtk_widget_set_usize( GTK_COMBO(m_widget)->button, w, m_height );
 709 #endif // 0
 710 }
 711
 712 void wxComboBox::ApplyWidgetStyle()
 713 {
 714     SetWidgetStyle();
 715
 716 //    gtk_widget_set_style( GTK_COMBO(m_widget)->button, m_widgetStyle );
 717     gtk_widget_set_style( GTK_COMBO(m_widget)->entry, m_widgetStyle );
 718     gtk_widget_set_style( GTK_COMBO(m_widget)->list, m_widgetStyle );
 719
 720     GtkList *list = GTK_LIST( GTK_COMBO(m_widget)->list );
 721     GList *child = list->children;
 722     while (child)
 723     {
 724         gtk_widget_set_style( GTK_WIDGET(child->data), m_widgetStyle );
 725
 726         GtkBin *bin = GTK_BIN(child->data);
 727         gtk_widget_set_style( bin->child, m_widgetStyle );
 728
 729         child = child->next;
 730     }
 731 }
 732
 733 GtkWidget* wxComboBox::GetConnectWidget()
 734 {
 735     return GTK_COMBO(m_widget)->entry;
 736 }
 737
 738 bool wxComboBox::IsOwnGtkWindow( GdkWindow *window )
 739 {
 740     return ( (window == GTK_ENTRY( GTK_COMBO(m_widget)->entry )->text_area) ||
 741              (window == GTK_COMBO(m_widget)->button->window ) );
 742 }
 743
 744 wxSize wxComboBox::DoGetBestSize() const
 745 {
 746     wxSize ret( wxControl::DoGetBestSize() );
 747
 748     // we know better our horizontal extent: it depends on the longest string
 749     // in the combobox
 750     ret.x = 0;
 751     if ( m_widget )
 752     {
 753         int width;
 754         size_t count = GetCount();
 755         for ( size_t n = 0; n < count; n++ )
 756         {
 757             GetTextExtent( GetString(n), &width, NULL, NULL, NULL, &m_font );
 758             if ( width > ret.x )
 759                 ret.x = width;
 760         }
 761     }
 762
 763     // empty combobox should have some reasonable default size too
 764     if ( ret.x < 100 )
 765         ret.x = 100;
 766     return ret;
 767 }
 768
 769 #endif