src/gtk/menu.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        menu.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 "menu.h"
  12 #pragma implementation "menuitem.h"
  13 #endif
  14
  15 #include "wx/menu.h"
  16 #include "wx/log.h"
  17 #include "wx/intl.h"
  18 #include "wx/app.h"
  19
  20 #include "gdk/gdk.h"
  21 #include "gtk/gtk.h"
  22
  23 //-----------------------------------------------------------------------------
  24 // idle system
  25 //-----------------------------------------------------------------------------
  26
  27 extern void wxapp_install_idle_handler();
  28 extern bool g_isIdle;
  29
  30 //-----------------------------------------------------------------------------
  31 // wxMenuBar
  32 //-----------------------------------------------------------------------------
  33
  34 IMPLEMENT_DYNAMIC_CLASS(wxMenuBar,wxWindow)
  35
  36 wxMenuBar::wxMenuBar( long style )
  37 {
  38     /* the parent window is known after wxFrame::SetMenu() */
  39     m_needParent = FALSE;
  40
  41     PreCreation( (wxWindow *) NULL, -1, wxDefaultPosition, wxDefaultSize, style, "menu" );
  42
  43     m_menus.DeleteContents( TRUE );
  44
  45     /* GTK 1.2.0 doesn't have gtk_item_factory_get_item(), but GTK 1.2.1 has. */
  46 #if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
  47     m_accel = gtk_accel_group_new();
  48     m_factory = gtk_item_factory_new( GTK_TYPE_MENU_BAR, "<main>", m_accel );
  49     m_menubar = gtk_item_factory_get_widget( m_factory, "<main>" );
  50 #else
  51     m_menubar = gtk_menu_bar_new();
  52 #endif
  53
  54     if (style & wxMB_DOCKABLE)
  55     {
  56         m_widget = gtk_handle_box_new();
  57         gtk_container_add( GTK_CONTAINER(m_widget), GTK_WIDGET(m_menubar) );
  58         gtk_widget_show( GTK_WIDGET(m_menubar) );
  59     }
  60     else
  61     {
  62         m_widget = GTK_WIDGET(m_menubar);
  63     }
  64
  65     PostCreation();
  66
  67     Show( TRUE );
  68 }
  69
  70 wxMenuBar::wxMenuBar()
  71 {
  72     /* the parent window is known after wxFrame::SetMenu() */
  73     m_needParent = FALSE;
  74
  75     PreCreation( (wxWindow *) NULL, -1, wxDefaultPosition, wxDefaultSize, 0, "menu" );
  76
  77     m_menus.DeleteContents( TRUE );
  78
  79     /* GTK 1.2.0 doesn't have gtk_item_factory_get_item(), but GTK 1.2.1 has. */
  80 #if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
  81     m_accel = gtk_accel_group_new();
  82     m_factory = gtk_item_factory_new( GTK_TYPE_MENU_BAR, "<main>", m_accel );
  83     m_menubar = gtk_item_factory_get_widget( m_factory, "<main>" );
  84 #else
  85     m_menubar = gtk_menu_bar_new();
  86 #endif
  87
  88     m_widget = GTK_WIDGET(m_menubar);
  89
  90     PostCreation();
  91
  92     Show( TRUE );
  93 }
  94
  95 wxMenuBar::~wxMenuBar()
  96 {
  97    // how to destroy a GtkItemFactory ?
  98 }
  99
 100 void wxMenuBar::Append( wxMenu *menu, const wxString &title )
 101 {
 102     m_menus.Append( menu );
 103
 104     /* GTK 1.2 wants to have "_" instead of "&" for accelerators */
 105     wxString str;
 106     for ( const wxChar *pc = title; *pc != _T('\0'); pc++ )
 107     {
 108         if (*pc == _T('&'))
 109         {
 110 #if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
 111             str << _T('_');
 112 #endif
 113         }
 114         else
 115            str << *pc;
 116     }
 117
 118     /* this doesn't have much effect right now */
 119     menu->SetTitle( str );
 120
 121     /* GTK 1.2.0 doesn't have gtk_item_factory_get_item(), but GTK 1.2.1 has. */
 122 #if (GTK_MINOR_VERSION > 0) && (GTK_MICRO_VERSION > 0)
 123
 124     /* local buffer in multibyte form */
 125     char buf[200];
 126     strcpy( buf, "/" );
 127     strcat( buf, str.mb_str() );
 128
 129     GtkItemFactoryEntry entry;
 130     entry.path = buf;
 131     entry.accelerator = (gchar*) NULL;
 132     entry.callback = (GtkItemFactoryCallback) NULL;
 133     entry.callback_action = 0;
 134     entry.item_type = "<Branch>";
 135
 136     gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
 137
 138     /* in order to get the pointer to the item we need the item text _without_ underscores */
 139     wxString tmp = _T("<main>/");
 140     for ( const wxChar *pc = str; *pc != _T('\0'); pc++ )
 141     {
 142         if (*pc == _T('_')) pc++; /* skip it */
 143         tmp << *pc;
 144     }
 145
 146     menu->m_owner = gtk_item_factory_get_item( m_factory, tmp.mb_str() );
 147
 148     gtk_menu_item_set_submenu( GTK_MENU_ITEM(menu->m_owner), menu->m_menu );
 149
 150 #else
 151
 152     menu->m_owner = gtk_menu_item_new_with_label( str.mb_str() );
 153     gtk_widget_show( menu->m_owner );
 154     gtk_menu_item_set_submenu( GTK_MENU_ITEM(menu->m_owner), menu->m_menu );
 155
 156     gtk_menu_bar_append( GTK_MENU_BAR(m_menubar), menu->m_owner );
 157
 158 #endif
 159 }
 160
 161 static int FindMenuItemRecursive( const wxMenu *menu, const wxString &menuString, const wxString &itemString )
 162 {
 163     if (menu->GetTitle() == menuString)
 164     {
 165         int res = menu->FindItem( itemString );
 166         if (res != wxNOT_FOUND)
 167             return res;
 168     }
 169
 170     wxNode *node = ((wxMenu *)menu)->GetItems().First();    // const_cast
 171     while (node)
 172     {
 173         wxMenuItem *item = (wxMenuItem*)node->Data();
 174         if (item->IsSubMenu())
 175             return FindMenuItemRecursive(item->GetSubMenu(), menuString, itemString);
 176
 177         node = node->Next();
 178     }
 179
 180     return wxNOT_FOUND;
 181 }
 182
 183 wxMenuItem *wxMenuBar::FindItemForId(int itemId, wxMenu **menuForItem = NULL) const
 184 {
 185     if ( menuForItem )
 186     {
 187         // TODO return the pointer to the menu
 188
 189         *menuForItem = NULL;
 190     }
 191
 192     return FindItem(itemId);
 193 }
 194
 195 int wxMenuBar::FindMenuItem( const wxString &menuString, const wxString &itemString ) const
 196 {
 197     wxNode *node = m_menus.First();
 198     while (node)
 199     {
 200         wxMenu *menu = (wxMenu*)node->Data();
 201         int res = FindMenuItemRecursive( menu, menuString, itemString);
 202         if (res != -1) return res;
 203         node = node->Next();
 204     }
 205     return -1;
 206 }
 207
 208 // Find a wxMenuItem using its id. Recurses down into sub-menus
 209 static wxMenuItem* FindMenuItemByIdRecursive(const wxMenu* menu, int id)
 210 {
 211     wxMenuItem* result = menu->FindItem(id);
 212
 213     wxNode *node = ((wxMenu *)menu)->GetItems().First(); // const_cast
 214     while ( node && result == NULL )
 215     {
 216         wxMenuItem *item = (wxMenuItem*)node->Data();
 217         if (item->IsSubMenu())
 218         {
 219             result = FindMenuItemByIdRecursive( item->GetSubMenu(), id );
 220         }
 221         node = node->Next();
 222     }
 223
 224     return result;
 225 }
 226
 227 wxMenuItem* wxMenuBar::FindItem( int id ) const
 228 {
 229     wxMenuItem* result = 0;
 230     wxNode *node = m_menus.First();
 231     while (node && result == 0)
 232     {
 233         wxMenu *menu = (wxMenu*)node->Data();
 234         result = FindMenuItemByIdRecursive( menu, id );
 235         node = node->Next();
 236     }
 237
 238     return result;
 239 }
 240
 241 void wxMenuBar::Check( int id, bool check )
 242 {
 243     wxMenuItem* item = FindMenuItemById( id );
 244
 245     wxCHECK_RET( item, _T("wxMenuBar::Check: no such item") );
 246
 247     item->Check(check);
 248 }
 249
 250 bool wxMenuBar::IsChecked( int id ) const
 251 {
 252     wxMenuItem* item = FindMenuItemById( id );
 253
 254     wxCHECK_MSG( item, FALSE, _T("wxMenuBar::IsChecked: no such item") );
 255
 256     return item->IsChecked();
 257 }
 258
 259 void wxMenuBar::Enable( int id, bool enable )
 260 {
 261     wxMenuItem* item = FindMenuItemById( id );
 262
 263     wxCHECK_RET( item, _T("wxMenuBar::Enable: no such item") );
 264
 265     item->Enable(enable);
 266 }
 267
 268 bool wxMenuBar::IsEnabled( int id ) const
 269 {
 270     wxMenuItem* item = FindMenuItemById( id );
 271
 272     wxCHECK_MSG( item, FALSE, _T("wxMenuBar::IsEnabled: no such item") );
 273
 274     return item->IsEnabled();
 275 }
 276
 277 wxString wxMenuBar::GetLabel( int id ) const
 278 {
 279     wxMenuItem* item = FindMenuItemById( id );
 280
 281     wxCHECK_MSG( item, _T(""), _T("wxMenuBar::GetLabel: no such item") );
 282
 283     return item->GetText();
 284 }
 285
 286 void wxMenuBar::SetLabel( int id, const wxString &label )
 287 {
 288     wxMenuItem* item = FindMenuItemById( id );
 289
 290     wxCHECK_RET( item, _T("wxMenuBar::SetLabel: no such item") );
 291
 292     item->SetText( label );
 293 }
 294
 295 void wxMenuBar::EnableTop( int pos, bool flag )
 296 {
 297     wxNode *node = m_menus.Nth( pos );
 298
 299     wxCHECK_RET( node, _T("menu not found") );
 300
 301     wxMenu* menu = (wxMenu*)node->Data();
 302
 303     if (menu->m_owner)
 304         gtk_widget_set_sensitive( menu->m_owner, flag );
 305 }
 306
 307 wxString wxMenuBar::GetLabelTop( int pos ) const
 308 {
 309     wxNode *node = m_menus.Nth( pos );
 310
 311     wxCHECK_MSG( node, _T("invalid"), _T("menu not found") );
 312
 313     wxMenu* menu = (wxMenu*)node->Data();
 314
 315     return menu->GetTitle();
 316 }
 317
 318 void wxMenuBar::SetLabelTop( int pos, const wxString& label )
 319 {
 320     wxNode *node = m_menus.Nth( pos );
 321
 322     wxCHECK_RET( node, _T("menu not found") );
 323
 324     wxMenu* menu = (wxMenu*)node->Data();
 325
 326     menu->SetTitle( label );
 327 }
 328
 329 void wxMenuBar::SetHelpString( int id, const wxString& helpString )
 330 {
 331     wxMenuItem* item = FindMenuItemById( id );
 332
 333     wxCHECK_RET( item, _T("wxMenuBar::SetHelpString: no such item") );
 334
 335     item->SetHelp( helpString );
 336 }
 337
 338 wxString wxMenuBar::GetHelpString( int id ) const
 339 {
 340     wxMenuItem* item = FindMenuItemById( id );
 341
 342     wxCHECK_MSG( item, _T(""), _T("wxMenuBar::GetHelpString: no such item") );
 343
 344     return item->GetHelp();
 345 }
 346
 347 //-----------------------------------------------------------------------------
 348 // "activate"
 349 //-----------------------------------------------------------------------------
 350
 351 static void gtk_menu_clicked_callback( GtkWidget *widget, wxMenu *menu )
 352 {
 353     if (g_isIdle) wxapp_install_idle_handler();
 354
 355     int id = menu->FindMenuIdByMenuItem(widget);
 356
 357     /* should find it for normal (not popup) menu */
 358     wxASSERT( (id != -1) || (menu->GetInvokingWindow() != NULL) );
 359
 360     if (!menu->IsEnabled(id))
 361         return;
 362
 363     wxMenuItem* item = menu->FindItem( id );
 364     wxCHECK_RET( item, _T("error in menu item callback") );
 365
 366     if (item->IsCheckable())
 367     {
 368         if (item->GetCheckedFlag() == item->IsChecked())
 369         {
 370             /* the menu item has been checked by calling wxMenuItem->Check() */
 371             return;
 372         }
 373         else
 374         {
 375             /* the user pressed on the menu item -> report */
 376             item->SetCheckedFlag(item->IsChecked());  /* make consistent again */
 377         }
 378     }
 379
 380     wxCommandEvent event( wxEVT_COMMAND_MENU_SELECTED, id );
 381     event.SetEventObject( menu );
 382     event.SetInt(id );
 383
 384     if (menu->GetCallback())
 385     {
 386         (void) (*(menu->GetCallback())) (*menu, event);
 387         return;
 388     }
 389
 390     if (menu->GetEventHandler()->ProcessEvent(event))
 391         return;
 392
 393     wxWindow *win = menu->GetInvokingWindow();
 394     if (win)
 395         win->GetEventHandler()->ProcessEvent( event );
 396 }
 397
 398 //-----------------------------------------------------------------------------
 399 // "select"
 400 //-----------------------------------------------------------------------------
 401
 402 static void gtk_menu_hilight_callback( GtkWidget *widget, wxMenu *menu )
 403 {
 404     if (g_isIdle) wxapp_install_idle_handler();
 405
 406     int id = menu->FindMenuIdByMenuItem(widget);
 407
 408     wxASSERT( id != -1 ); // should find it!
 409
 410     if (!menu->IsEnabled(id))
 411         return;
 412
 413     wxMenuEvent event( wxEVT_MENU_HIGHLIGHT, id );
 414     event.SetEventObject( menu );
 415
 416 /*   wxMSW doesn't call callback here either
 417
 418      if (menu->m_callback)
 419      {
 420         (void) (*(menu->m_callback)) (*menu, event);
 421         return;
 422      }
 423 */
 424
 425     if (menu->GetEventHandler()->ProcessEvent(event))
 426         return;
 427
 428     wxWindow *win = menu->GetInvokingWindow();
 429     if (win) win->GetEventHandler()->ProcessEvent( event );
 430 }
 431
 432 //-----------------------------------------------------------------------------
 433 // "deselect"
 434 //-----------------------------------------------------------------------------
 435
 436 static void gtk_menu_nolight_callback( GtkWidget *widget, wxMenu *menu )
 437 {
 438     if (g_isIdle) wxapp_install_idle_handler();
 439
 440     int id = menu->FindMenuIdByMenuItem(widget);
 441
 442     wxASSERT( id != -1 ); // should find it!
 443
 444     if (!menu->IsEnabled(id))
 445         return;
 446
 447     wxMenuEvent event( wxEVT_MENU_HIGHLIGHT, -1 );
 448     event.SetEventObject( menu );
 449
 450     if (menu->GetEventHandler()->ProcessEvent(event))
 451         return;
 452
 453     wxWindow *win = menu->GetInvokingWindow();
 454     if (win)
 455         win->GetEventHandler()->ProcessEvent( event );
 456 }
 457
 458 //-----------------------------------------------------------------------------
 459 // wxMenuItem
 460 //-----------------------------------------------------------------------------
 461
 462 IMPLEMENT_DYNAMIC_CLASS(wxMenuItem,wxObject)
 463
 464 wxMenuItem::wxMenuItem()
 465 {
 466     m_id = ID_SEPARATOR;
 467     m_isCheckMenu = FALSE;
 468     m_isChecked = FALSE;
 469     m_isEnabled = TRUE;
 470     m_subMenu = (wxMenu *) NULL;
 471     m_menuItem = (GtkWidget *) NULL;
 472 }
 473
 474 // it's valid for this function to be called even if m_menuItem == NULL
 475 void wxMenuItem::SetName( const wxString& str )
 476 {
 477     m_text = _T("");
 478     for ( const wxChar *pc = str; *pc != _T('\0'); pc++ )
 479     {
 480         if (*pc == _T('&'))
 481         {
 482 #if (GTK_MINOR_VERSION > 0)
 483             m_text << _T('_');
 484 #endif
 485         }
 486         else
 487            m_text << *pc;
 488     }
 489
 490     if (m_menuItem)
 491     {
 492         GtkLabel *label = GTK_LABEL( GTK_BIN(m_menuItem)->child );
 493         gtk_label_set( label, m_text.mb_str());
 494     }
 495 }
 496
 497 void wxMenuItem::Check( bool check )
 498 {
 499     wxCHECK_RET( m_menuItem, _T("invalid menu item") );
 500
 501     wxCHECK_RET( IsCheckable(), _T("Can't check uncheckable item!") )
 502
 503     if (check == m_isChecked) return;
 504
 505     m_isChecked = check;
 506     gtk_check_menu_item_set_state( (GtkCheckMenuItem*)m_menuItem, (gint)check );
 507 }
 508
 509 void wxMenuItem::Enable( bool enable )
 510 {
 511     wxCHECK_RET( m_menuItem, _T("invalid menu item") );
 512
 513     gtk_widget_set_sensitive( m_menuItem, enable );
 514     m_isEnabled = enable;
 515 }
 516
 517 bool wxMenuItem::IsChecked() const
 518 {
 519     wxCHECK_MSG( m_menuItem, FALSE, _T("invalid menu item") );
 520
 521     wxCHECK( IsCheckable(), FALSE ); // can't get state of uncheckable item!
 522
 523     bool bIsChecked = ((GtkCheckMenuItem*)m_menuItem)->active != 0;
 524
 525     return bIsChecked;
 526 }
 527
 528 //-----------------------------------------------------------------------------
 529 // wxMenu
 530 //-----------------------------------------------------------------------------
 531
 532 IMPLEMENT_DYNAMIC_CLASS(wxMenu,wxEvtHandler)
 533
 534 wxMenu::wxMenu( const wxString& title, const wxFunction func )
 535 {
 536     m_title = title;
 537     m_items.DeleteContents( TRUE );
 538     m_invokingWindow = (wxWindow *) NULL;
 539
 540 #if (GTK_MINOR_VERSION > 0)
 541     m_accel = gtk_accel_group_new();
 542     m_factory = gtk_item_factory_new( GTK_TYPE_MENU, "<main>", m_accel );
 543     m_menu = gtk_item_factory_get_widget( m_factory, "<main>" );
 544 #else
 545     m_menu = gtk_menu_new();  // Do not show!
 546 #endif
 547
 548     m_callback = func;
 549     m_eventHandler = this;
 550     m_clientData = (void*) NULL;
 551
 552     if (m_title.IsNull()) m_title = _T("");
 553     if (m_title != _T(""))
 554     {
 555         Append(-2, m_title);
 556         AppendSeparator();
 557     }
 558
 559     m_owner = (GtkWidget*) NULL;
 560 }
 561
 562 wxMenu::~wxMenu()
 563 {
 564     /* how do we delete an item-factory ? */
 565 }
 566
 567 void wxMenu::SetTitle( const wxString& title )
 568 {
 569     // TODO Waiting for something better
 570     m_title = title;
 571 }
 572
 573 const wxString wxMenu::GetTitle() const
 574 {
 575     return m_title;
 576 }
 577
 578 void wxMenu::AppendSeparator()
 579 {
 580     wxMenuItem *mitem = new wxMenuItem();
 581     mitem->SetId(ID_SEPARATOR);
 582
 583     GtkWidget *menuItem = gtk_menu_item_new();
 584     gtk_menu_append( GTK_MENU(m_menu), menuItem );
 585     gtk_widget_show( menuItem );
 586
 587     mitem->SetMenuItem(menuItem);
 588     m_items.Append( mitem );
 589 }
 590
 591 void wxMenu::Append( int id, const wxString &item, const wxString &helpStr, bool checkable )
 592 {
 593     wxMenuItem *mitem = new wxMenuItem();
 594     mitem->SetId(id);
 595     mitem->SetText(item);
 596     mitem->SetHelp(helpStr);
 597     mitem->SetCheckable(checkable);
 598
 599 #if (GTK_MINOR_VERSION > 0)
 600     /* text has "_" instead of "&" after mitem->SetText() */
 601     wxString text( mitem->GetText() );
 602
 603     /* local buffer in multibyte form */
 604     char buf[200];
 605     strcpy( buf, "/" );
 606     strcat( buf, text.mb_str() );
 607
 608     GtkItemFactoryEntry entry;
 609     entry.path = buf;
 610     entry.accelerator = (gchar*) NULL;
 611     entry.callback = (GtkItemFactoryCallback) gtk_menu_clicked_callback;
 612     entry.callback_action = 0;
 613     if (checkable)
 614         entry.item_type = "<CheckItem>";
 615     else
 616         entry.item_type = "<Item>";
 617
 618     gtk_item_factory_create_item( m_factory, &entry, (gpointer) this, 2 );  /* what is 2 ? */
 619
 620     /* in order to get the pointer to the item we need the item text _without_ underscores */
 621     wxString s = _T("<main>/");
 622     for ( const wxChar *pc = text; *pc != _T('\0'); pc++ )
 623     {
 624         if (*pc == _T('_')) pc++; /* skip it */
 625         s << *pc;
 626     }
 627
 628     GtkWidget *menuItem = gtk_item_factory_get_widget( m_factory, s.mb_str() );
 629
 630 #else
 631
 632     GtkWidget *menuItem = checkable ? gtk_check_menu_item_new_with_label( mitem->GetText().mb_str() )
 633                                     : gtk_menu_item_new_with_label( mitem->GetText().mb_str() );
 634
 635     gtk_signal_connect( GTK_OBJECT(menuItem), "activate",
 636                         GTK_SIGNAL_FUNC(gtk_menu_clicked_callback),
 637                         (gpointer)this );
 638
 639     gtk_menu_append( GTK_MENU(m_menu), menuItem );
 640     gtk_widget_show( menuItem );
 641
 642 #endif
 643
 644     gtk_signal_connect( GTK_OBJECT(menuItem), "select",
 645                         GTK_SIGNAL_FUNC(gtk_menu_hilight_callback),
 646                         (gpointer)this );
 647
 648     gtk_signal_connect( GTK_OBJECT(menuItem), "deselect",
 649                         GTK_SIGNAL_FUNC(gtk_menu_nolight_callback),
 650                         (gpointer)this );
 651
 652     mitem->SetMenuItem(menuItem);
 653
 654     m_items.Append( mitem );
 655 }
 656
 657 void wxMenu::Append( int id, const wxString &text, wxMenu *subMenu, const wxString &helpStr )
 658 {
 659     wxMenuItem *mitem = new wxMenuItem();
 660     mitem->SetId(id);
 661     mitem->SetText(text);
 662     mitem->SetHelp(helpStr);
 663
 664     GtkWidget *menuItem = gtk_menu_item_new_with_label(mitem->GetText().mbc_str());
 665     mitem->SetMenuItem(menuItem);
 666     mitem->SetSubMenu(subMenu);
 667
 668     gtk_signal_connect( GTK_OBJECT(menuItem), "select",
 669                         GTK_SIGNAL_FUNC(gtk_menu_hilight_callback),
 670                         (gpointer*)this );
 671
 672     gtk_signal_connect( GTK_OBJECT(menuItem), "deselect",
 673                         GTK_SIGNAL_FUNC(gtk_menu_nolight_callback),
 674                         (gpointer*)this );
 675
 676     gtk_menu_item_set_submenu( GTK_MENU_ITEM(menuItem), subMenu->m_menu );
 677     gtk_menu_append( GTK_MENU(m_menu), menuItem );
 678     gtk_widget_show( menuItem );
 679     m_items.Append( mitem );
 680 }
 681
 682 void wxMenu::Append( wxMenuItem *item )
 683 {
 684     m_items.Append( item );
 685
 686     GtkWidget *menuItem = (GtkWidget*) NULL;
 687
 688     if (item->IsSeparator())
 689         menuItem = gtk_menu_item_new();
 690     else if (item->IsSubMenu())
 691         menuItem = gtk_menu_item_new_with_label(item->GetText().mbc_str());
 692     else
 693         menuItem = item->IsCheckable() ? gtk_check_menu_item_new_with_label(item->GetText().mbc_str())
 694                                        : gtk_menu_item_new_with_label(item->GetText().mbc_str());
 695
 696     if (!item->IsSeparator())
 697     {
 698         gtk_signal_connect( GTK_OBJECT(menuItem), "select",
 699                             GTK_SIGNAL_FUNC(gtk_menu_hilight_callback),
 700                             (gpointer*)this );
 701
 702         gtk_signal_connect( GTK_OBJECT(menuItem), "deselect",
 703                             GTK_SIGNAL_FUNC(gtk_menu_nolight_callback),
 704                             (gpointer*)this );
 705
 706         if (!item->IsSubMenu())
 707         {
 708             gtk_signal_connect( GTK_OBJECT(menuItem), "activate",
 709                                 GTK_SIGNAL_FUNC(gtk_menu_clicked_callback),
 710                                 (gpointer*)this );
 711         }
 712     }
 713
 714     gtk_menu_append( GTK_MENU(m_menu), menuItem );
 715     gtk_widget_show( menuItem );
 716     item->SetMenuItem(menuItem);
 717 }
 718
 719 int wxMenu::FindItem( const wxString itemString ) const
 720 {
 721     wxString s = _T("");
 722     for ( const wxChar *pc = itemString; *pc != _T('\0'); pc++ )
 723     {
 724         if (*pc == _T('&'))
 725         {
 726             pc++; /* skip it */
 727 #if (GTK_MINOR_VERSION > 0)
 728             s << _T('_');
 729 #endif
 730         }
 731         s << *pc;
 732     }
 733
 734     wxNode *node = m_items.First();
 735     while (node)
 736     {
 737         wxMenuItem *item = (wxMenuItem*)node->Data();
 738         if (item->GetText() == s)
 739         {
 740             return item->GetId();
 741         }
 742         node = node->Next();
 743     }
 744
 745     return wxNOT_FOUND;
 746 }
 747
 748 void wxMenu::Enable( int id, bool enable )
 749 {
 750     wxMenuItem *item = FindItem(id);
 751
 752     wxCHECK_RET( item, _T("wxMenu::Enable: no such item") );
 753
 754     item->Enable(enable);
 755 }
 756
 757 bool wxMenu::IsEnabled( int id ) const
 758 {
 759     wxMenuItem *item = FindItem(id);
 760
 761     wxCHECK_MSG( item, FALSE, _T("wxMenu::IsEnabled: no such item") );
 762
 763     return item->IsEnabled();
 764 }
 765
 766 void wxMenu::Check( int id, bool enable )
 767 {
 768     wxMenuItem *item = FindItem(id);
 769
 770     wxCHECK_RET( item, _T("wxMenu::Check: no such item") );
 771
 772     item->Check(enable);
 773 }
 774
 775 bool wxMenu::IsChecked( int id ) const
 776 {
 777     wxMenuItem *item = FindItem(id);
 778
 779     wxCHECK_MSG( item, FALSE, _T("wxMenu::IsChecked: no such item") );
 780
 781     return item->IsChecked();
 782 }
 783
 784 void wxMenu::SetLabel( int id, const wxString &label )
 785 {
 786     wxMenuItem *item = FindItem(id);
 787
 788     wxCHECK_RET( item, _T("wxMenu::SetLabel: no such item") );
 789
 790     item->SetText(label);
 791 }
 792
 793 wxString wxMenu::GetLabel( int id ) const
 794 {
 795     wxMenuItem *item = FindItem(id);
 796
 797     wxCHECK_MSG( item, _T(""), _T("wxMenu::GetLabel: no such item") );
 798
 799     return item->GetText();
 800 }
 801
 802 void wxMenu::SetHelpString( int id, const wxString& helpString )
 803 {
 804     wxMenuItem *item = FindItem(id);
 805
 806     wxCHECK_RET( item, _T("wxMenu::SetHelpString: no such item") );
 807
 808     item->SetHelp( helpString );
 809 }
 810
 811 wxString wxMenu::GetHelpString( int id ) const
 812 {
 813     wxMenuItem *item = FindItem(id);
 814
 815     wxCHECK_MSG( item, _T(""), _T("wxMenu::GetHelpString: no such item") );
 816
 817     return item->GetHelp();
 818 }
 819
 820 int wxMenu::FindMenuIdByMenuItem( GtkWidget *menuItem ) const
 821 {
 822     wxNode *node = m_items.First();
 823     while (node)
 824     {
 825         wxMenuItem *item = (wxMenuItem*)node->Data();
 826         if (item->GetMenuItem() == menuItem)
 827            return item->GetId();
 828         node = node->Next();
 829     }
 830
 831     return wxNOT_FOUND;
 832 }
 833
 834 wxMenuItem *wxMenu::FindItem(int id) const
 835 {
 836     wxNode *node = m_items.First();
 837     while (node)
 838     {
 839         wxMenuItem *item = (wxMenuItem*)node->Data();
 840         if (item->GetId() == id)
 841         {
 842             return item;
 843         }
 844         node = node->Next();
 845     }
 846
 847     /* Not finding anything here can be correct
 848      * when search the entire menu system for
 849      * an entry -> no error message. */
 850
 851     return (wxMenuItem *) NULL;
 852 }
 853
 854 void wxMenu::SetInvokingWindow( wxWindow *win )
 855 {
 856     m_invokingWindow = win;
 857 }
 858
 859 wxWindow *wxMenu::GetInvokingWindow()
 860 {
 861     return m_invokingWindow;
 862 }
 863
 864 // Update a menu and all submenus recursively. source is the object that has
 865 // the update event handlers defined for it. If NULL, the menu or associated
 866 // window will be used.
 867 void wxMenu::UpdateUI(wxEvtHandler* source)
 868 {
 869   if (!source && GetInvokingWindow())
 870     source = GetInvokingWindow()->GetEventHandler();
 871   if (!source)
 872     source = GetEventHandler();
 873   if (!source)
 874     source = this;
 875
 876   wxNode* node = GetItems().First();
 877   while (node)
 878   {
 879     wxMenuItem* item = (wxMenuItem*) node->Data();
 880     if ( !item->IsSeparator() )
 881     {
 882       wxWindowID id = item->GetId();
 883       wxUpdateUIEvent event(id);
 884       event.SetEventObject( source );
 885
 886       if (source->ProcessEvent(event))
 887       {
 888         if (event.GetSetText())
 889           SetLabel(id, event.GetText());
 890         if (event.GetSetChecked())
 891           Check(id, event.GetChecked());
 892         if (event.GetSetEnabled())
 893           Enable(id, event.GetEnabled());
 894       }
 895
 896       if (item->GetSubMenu())
 897         item->GetSubMenu()->UpdateUI(source);
 898     }
 899     node = node->Next();
 900   }
 901 }
 902