src/common/menucmn.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/menucmn.cpp
   3 // Purpose:     wxMenu and wxMenuBar methods common to all ports
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     26.10.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWidgets team
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_MENUS
  28
  29 #ifndef WX_PRECOMP
  30     #include "wx/intl.h"
  31     #include "wx/log.h"
  32     #include "wx/menu.h"
  33 #endif
  34
  35 #include "wx/stockitem.h"
  36
  37 // ----------------------------------------------------------------------------
  38 // template lists
  39 // ----------------------------------------------------------------------------
  40
  41 #include "wx/listimpl.cpp"
  42
  43 WX_DEFINE_LIST(wxMenuList)
  44 WX_DEFINE_LIST(wxMenuItemList)
  45
  46 // ============================================================================
  47 // implementation
  48 // ============================================================================
  49
  50 // ----------------------------------------------------------------------------
  51 // wxMenuItemBase
  52 // ----------------------------------------------------------------------------
  53
  54 wxMenuItemBase::wxMenuItemBase(wxMenu *parentMenu,
  55                                int id,
  56                                const wxString& text,
  57                                const wxString& help,
  58                                wxItemKind kind,
  59                                wxMenu *subMenu)
  60 {
  61     wxASSERT_MSG( parentMenu != NULL, wxT("menuitem should have a menu") );
  62
  63     m_parentMenu  = parentMenu;
  64     m_subMenu     = subMenu;
  65     m_isEnabled   = true;
  66     m_isChecked   = false;
  67     m_id          = id;
  68     m_kind        = kind;
  69     if (m_id == wxID_ANY)
  70         m_id = wxWindow::NewControlId();
  71     if (m_id == wxID_SEPARATOR)
  72         m_kind = wxITEM_SEPARATOR;
  73
  74     SetItemLabel(text);
  75     SetHelp(help);
  76 }
  77
  78 wxMenuItemBase::~wxMenuItemBase()
  79 {
  80     delete m_subMenu;
  81 }
  82
  83 #if wxUSE_ACCEL
  84
  85 wxAcceleratorEntry *wxMenuItemBase::GetAccel() const
  86 {
  87     return wxAcceleratorEntry::Create(GetItemLabel());
  88 }
  89
  90 void wxMenuItemBase::SetAccel(wxAcceleratorEntry *accel)
  91 {
  92     wxString text = m_text.BeforeFirst(wxT('\t'));
  93     if ( accel )
  94     {
  95         text += wxT('\t');
  96         text += accel->ToString();
  97     }
  98
  99     SetItemLabel(text);
 100 }
 101
 102 #endif // wxUSE_ACCEL
 103
 104 void wxMenuItemBase::SetItemLabel(const wxString& str)
 105 {
 106     m_text = str;
 107
 108     if ( m_text.empty() && !IsSeparator() )
 109     {
 110         wxASSERT_MSG( wxIsStockID(GetId()),
 111                       wxT("A non-stock menu item with an empty label?") );
 112         m_text = wxGetStockLabel(GetId(), wxSTOCK_WITH_ACCELERATOR |
 113                                           wxSTOCK_WITH_MNEMONIC);
 114     }
 115 }
 116
 117 void wxMenuItemBase::SetHelp(const wxString& str)
 118 {
 119     m_help = str;
 120
 121     if ( m_help.empty() && !IsSeparator() && wxIsStockID(GetId()) )
 122     {
 123         // get a stock help string
 124         m_help = wxGetStockHelpString(GetId());
 125     }
 126 }
 127
 128 #if WXWIN_COMPATIBILITY_2_8
 129 wxString wxMenuItemBase::GetLabelFromText(const wxString& text)
 130 {
 131     return GetLabelText(text);
 132 }
 133 #endif
 134
 135 bool wxMenuBase::ms_locked = true;
 136
 137 // ----------------------------------------------------------------------------
 138 // wxMenu ctor and dtor
 139 // ----------------------------------------------------------------------------
 140
 141 void wxMenuBase::Init(long style)
 142 {
 143     m_menuBar = (wxMenuBar *)NULL;
 144     m_menuParent = (wxMenu *)NULL;
 145
 146     m_invokingWindow = (wxWindow *)NULL;
 147     m_style = style;
 148     m_clientData = (void *)NULL;
 149     m_eventHandler = this;
 150 }
 151
 152 wxMenuBase::~wxMenuBase()
 153 {
 154     WX_CLEAR_LIST(wxMenuItemList, m_items);
 155 }
 156
 157 // ----------------------------------------------------------------------------
 158 // wxMenu item adding/removing
 159 // ----------------------------------------------------------------------------
 160
 161 void wxMenuBase::AddSubMenu(wxMenu *submenu)
 162 {
 163     wxCHECK_RET( submenu, _T("can't add a NULL submenu") );
 164
 165     submenu->SetParent((wxMenu *)this);
 166 }
 167
 168 wxMenuItem* wxMenuBase::DoAppend(wxMenuItem *item)
 169 {
 170     wxCHECK_MSG( item, NULL, wxT("invalid item in wxMenu::Append()") );
 171
 172     m_items.Append(item);
 173     item->SetMenu((wxMenu*)this);
 174     if ( item->IsSubMenu() )
 175     {
 176         AddSubMenu(item->GetSubMenu());
 177     }
 178
 179     return item;
 180 }
 181
 182 wxMenuItem* wxMenuBase::Insert(size_t pos, wxMenuItem *item)
 183 {
 184     wxCHECK_MSG( item, NULL, wxT("invalid item in wxMenu::Insert") );
 185
 186     if ( pos == GetMenuItemCount() )
 187     {
 188         return DoAppend(item);
 189     }
 190     else
 191     {
 192         wxCHECK_MSG( pos < GetMenuItemCount(), NULL,
 193                      wxT("invalid index in wxMenu::Insert") );
 194
 195         return DoInsert(pos, item);
 196     }
 197 }
 198
 199 wxMenuItem* wxMenuBase::DoInsert(size_t pos, wxMenuItem *item)
 200 {
 201     wxCHECK_MSG( item, NULL, wxT("invalid item in wxMenu::Insert()") );
 202
 203     wxMenuItemList::compatibility_iterator node = m_items.Item(pos);
 204     wxCHECK_MSG( node, NULL, wxT("invalid index in wxMenu::Insert()") );
 205
 206     m_items.Insert(node, item);
 207     item->SetMenu((wxMenu*)this);
 208     if ( item->IsSubMenu() )
 209     {
 210         AddSubMenu(item->GetSubMenu());
 211     }
 212
 213     return item;
 214 }
 215
 216 wxMenuItem *wxMenuBase::Remove(wxMenuItem *item)
 217 {
 218     wxCHECK_MSG( item, NULL, wxT("invalid item in wxMenu::Remove") );
 219
 220     return DoRemove(item);
 221 }
 222
 223 wxMenuItem *wxMenuBase::DoRemove(wxMenuItem *item)
 224 {
 225     wxMenuItemList::compatibility_iterator node = m_items.Find(item);
 226
 227     // if we get here, the item is valid or one of Remove() functions is broken
 228     wxCHECK_MSG( node, NULL, wxT("bug in wxMenu::Remove logic") );
 229
 230     // we detach the item, but we do delete the list node (i.e. don't call
 231     // DetachNode() here!)
 232     m_items.Erase(node);
 233
 234     // item isn't attached to anything any more
 235     item->SetMenu((wxMenu *)NULL);
 236     wxMenu *submenu = item->GetSubMenu();
 237     if ( submenu )
 238     {
 239         submenu->SetParent((wxMenu *)NULL);
 240         if ( submenu->IsAttached() )
 241             submenu->Detach();
 242     }
 243
 244     return item;
 245 }
 246
 247 bool wxMenuBase::Delete(wxMenuItem *item)
 248 {
 249     wxCHECK_MSG( item, false, wxT("invalid item in wxMenu::Delete") );
 250
 251     return DoDelete(item);
 252 }
 253
 254 bool wxMenuBase::DoDelete(wxMenuItem *item)
 255 {
 256     wxMenuItem *item2 = DoRemove(item);
 257     wxCHECK_MSG( item2, false, wxT("failed to delete menu item") );
 258
 259     // don't delete the submenu
 260     item2->SetSubMenu((wxMenu *)NULL);
 261
 262     delete item2;
 263
 264     return true;
 265 }
 266
 267 bool wxMenuBase::Destroy(wxMenuItem *item)
 268 {
 269     wxCHECK_MSG( item, false, wxT("invalid item in wxMenu::Destroy") );
 270
 271     return DoDestroy(item);
 272 }
 273
 274 bool wxMenuBase::DoDestroy(wxMenuItem *item)
 275 {
 276     wxMenuItem *item2 = DoRemove(item);
 277     wxCHECK_MSG( item2, false, wxT("failed to delete menu item") );
 278
 279     delete item2;
 280
 281     return true;
 282 }
 283
 284 // ----------------------------------------------------------------------------
 285 // wxMenu searching for items
 286 // ----------------------------------------------------------------------------
 287
 288 // Finds the item id matching the given string, wxNOT_FOUND if not found.
 289 int wxMenuBase::FindItem(const wxString& text) const
 290 {
 291     wxString label = wxMenuItem::GetLabelText(text);
 292     for ( wxMenuItemList::compatibility_iterator node = m_items.GetFirst();
 293           node;
 294           node = node->GetNext() )
 295     {
 296         wxMenuItem *item = node->GetData();
 297         if ( item->IsSubMenu() )
 298         {
 299             int rc = item->GetSubMenu()->FindItem(label);
 300             if ( rc != wxNOT_FOUND )
 301                 return rc;
 302         }
 303
 304         // we execute this code for submenus as well to alllow finding them by
 305         // name just like the ordinary items
 306         if ( !item->IsSeparator() )
 307         {
 308             if ( item->GetItemLabelText() == label )
 309                 return item->GetId();
 310         }
 311     }
 312
 313     return wxNOT_FOUND;
 314 }
 315
 316 // recursive search for item by id
 317 wxMenuItem *wxMenuBase::FindItem(int itemId, wxMenu **itemMenu) const
 318 {
 319     if ( itemMenu )
 320         *itemMenu = NULL;
 321
 322     wxMenuItem *item = NULL;
 323     for ( wxMenuItemList::compatibility_iterator node = m_items.GetFirst();
 324           node && !item;
 325           node = node->GetNext() )
 326     {
 327         item = node->GetData();
 328
 329         if ( item->GetId() == itemId )
 330         {
 331             if ( itemMenu )
 332                 *itemMenu = (wxMenu *)this;
 333         }
 334         else if ( item->IsSubMenu() )
 335         {
 336             item = item->GetSubMenu()->FindItem(itemId, itemMenu);
 337         }
 338         else
 339         {
 340             // don't exit the loop
 341             item = NULL;
 342         }
 343     }
 344
 345     return item;
 346 }
 347
 348 // non recursive search
 349 wxMenuItem *wxMenuBase::FindChildItem(int id, size_t *ppos) const
 350 {
 351     wxMenuItem *item = (wxMenuItem *)NULL;
 352     wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();
 353
 354     size_t pos;
 355     for ( pos = 0; node; pos++ )
 356     {
 357         if ( node->GetData()->GetId() == id )
 358         {
 359             item = node->GetData();
 360
 361             break;
 362         }
 363
 364         node = node->GetNext();
 365     }
 366
 367     if ( ppos )
 368     {
 369         *ppos = item ? pos : (size_t)wxNOT_FOUND;
 370     }
 371
 372     return item;
 373 }
 374
 375 // find by position
 376 wxMenuItem* wxMenuBase::FindItemByPosition(size_t position) const
 377 {
 378     wxCHECK_MSG( position < m_items.GetCount(), NULL,
 379                  _T("wxMenu::FindItemByPosition(): invalid menu index") );
 380
 381     return m_items.Item( position )->GetData();
 382 }
 383
 384 // ----------------------------------------------------------------------------
 385 // wxMenu helpers used by derived classes
 386 // ----------------------------------------------------------------------------
 387
 388 // Update a menu and all submenus recursively. source is the object that has
 389 // the update event handlers defined for it. If NULL, the menu or associated
 390 // window will be used.
 391 void wxMenuBase::UpdateUI(wxEvtHandler* source)
 392 {
 393     if (GetInvokingWindow())
 394     {
 395         // Don't update menus if the parent
 396         // frame is about to get deleted
 397         wxWindow *tlw = wxGetTopLevelParent( GetInvokingWindow() );
 398         if (tlw && wxPendingDelete.Member(tlw))
 399             return;
 400     }
 401
 402     if ( !source && GetInvokingWindow() )
 403         source = GetInvokingWindow()->GetEventHandler();
 404     if ( !source )
 405         source = GetEventHandler();
 406     if ( !source )
 407         source = this;
 408
 409     wxMenuItemList::compatibility_iterator  node = GetMenuItems().GetFirst();
 410     while ( node )
 411     {
 412         wxMenuItem* item = node->GetData();
 413         if ( !item->IsSeparator() )
 414         {
 415             wxWindowID id = item->GetId();
 416             wxUpdateUIEvent event(id);
 417             event.SetEventObject( source );
 418
 419             if ( source->ProcessEvent(event) )
 420             {
 421                 // if anything changed, update the changed attribute
 422                 if (event.GetSetText())
 423                     SetLabel(id, event.GetText());
 424                 if (event.GetSetChecked())
 425                     Check(id, event.GetChecked());
 426                 if (event.GetSetEnabled())
 427                     Enable(id, event.GetEnabled());
 428             }
 429
 430             // recurse to the submenus
 431             if ( item->GetSubMenu() )
 432                 item->GetSubMenu()->UpdateUI(source);
 433         }
 434         //else: item is a separator (which doesn't process update UI events)
 435
 436         node = node->GetNext();
 437     }
 438 }
 439
 440 bool wxMenuBase::SendEvent(int id, int checked)
 441 {
 442     wxCommandEvent event(wxEVT_COMMAND_MENU_SELECTED, id);
 443     event.SetEventObject(this);
 444     event.SetInt(checked);
 445
 446     bool processed = false;
 447
 448     // Try the menu's event handler
 449     // if ( !processed )
 450     {
 451         wxEvtHandler *handler = GetEventHandler();
 452         if ( handler )
 453             processed = handler->SafelyProcessEvent(event);
 454     }
 455
 456     // Try the window the menu was popped up from (and up through the
 457     // hierarchy)
 458     if ( !processed )
 459     {
 460         const wxMenuBase *menu = this;
 461         while ( menu )
 462         {
 463             wxWindow *win = menu->GetInvokingWindow();
 464             if ( win )
 465             {
 466                 processed = win->HandleWindowEvent(event);
 467                 break;
 468             }
 469
 470             menu = menu->GetParent();
 471         }
 472     }
 473
 474     return processed;
 475 }
 476
 477 // ----------------------------------------------------------------------------
 478 // wxMenu attaching/detaching to/from menu bar
 479 // ----------------------------------------------------------------------------
 480
 481 wxMenuBar* wxMenuBase::GetMenuBar() const
 482 {
 483     if(GetParent())
 484         return GetParent()->GetMenuBar();
 485     return m_menuBar;
 486 }
 487
 488 void wxMenuBase::Attach(wxMenuBarBase *menubar)
 489 {
 490     // use Detach() instead!
 491     wxASSERT_MSG( menubar, _T("menu can't be attached to NULL menubar") );
 492
 493     // use IsAttached() to prevent this from happening
 494     wxASSERT_MSG( !m_menuBar, _T("attaching menu twice?") );
 495
 496     m_menuBar = (wxMenuBar *)menubar;
 497 }
 498
 499 void wxMenuBase::Detach()
 500 {
 501     // use IsAttached() to prevent this from happening
 502     wxASSERT_MSG( m_menuBar, _T("detaching unattached menu?") );
 503
 504     m_menuBar = NULL;
 505 }
 506
 507 // ----------------------------------------------------------------------------
 508 // wxMenu functions forwarded to wxMenuItem
 509 // ----------------------------------------------------------------------------
 510
 511 void wxMenuBase::Enable( int id, bool enable )
 512 {
 513     wxMenuItem *item = FindItem(id);
 514
 515     wxCHECK_RET( item, wxT("wxMenu::Enable: no such item") );
 516
 517     item->Enable(enable);
 518 }
 519
 520 bool wxMenuBase::IsEnabled( int id ) const
 521 {
 522     wxMenuItem *item = FindItem(id);
 523
 524     wxCHECK_MSG( item, false, wxT("wxMenu::IsEnabled: no such item") );
 525
 526     return item->IsEnabled();
 527 }
 528
 529 void wxMenuBase::Check( int id, bool enable )
 530 {
 531     wxMenuItem *item = FindItem(id);
 532
 533     wxCHECK_RET( item, wxT("wxMenu::Check: no such item") );
 534
 535     item->Check(enable);
 536 }
 537
 538 bool wxMenuBase::IsChecked( int id ) const
 539 {
 540     wxMenuItem *item = FindItem(id);
 541
 542     wxCHECK_MSG( item, false, wxT("wxMenu::IsChecked: no such item") );
 543
 544     return item->IsChecked();
 545 }
 546
 547 void wxMenuBase::SetLabel( int id, const wxString &label )
 548 {
 549     wxMenuItem *item = FindItem(id);
 550
 551     wxCHECK_RET( item, wxT("wxMenu::SetLabel: no such item") );
 552
 553     item->SetItemLabel(label);
 554 }
 555
 556 wxString wxMenuBase::GetLabel( int id ) const
 557 {
 558     wxMenuItem *item = FindItem(id);
 559
 560     wxCHECK_MSG( item, wxEmptyString, wxT("wxMenu::GetLabel: no such item") );
 561
 562     return item->GetItemLabel();
 563 }
 564
 565 void wxMenuBase::SetHelpString( int id, const wxString& helpString )
 566 {
 567     wxMenuItem *item = FindItem(id);
 568
 569     wxCHECK_RET( item, wxT("wxMenu::SetHelpString: no such item") );
 570
 571     item->SetHelp( helpString );
 572 }
 573
 574 wxString wxMenuBase::GetHelpString( int id ) const
 575 {
 576     wxMenuItem *item = FindItem(id);
 577
 578     wxCHECK_MSG( item, wxEmptyString, wxT("wxMenu::GetHelpString: no such item") );
 579
 580     return item->GetHelp();
 581 }
 582
 583 // ----------------------------------------------------------------------------
 584 // wxMenuBarBase ctor and dtor
 585 // ----------------------------------------------------------------------------
 586
 587 wxMenuBarBase::wxMenuBarBase()
 588 {
 589     // not attached yet
 590     m_menuBarFrame = NULL;
 591 }
 592
 593 wxMenuBarBase::~wxMenuBarBase()
 594 {
 595     WX_CLEAR_LIST(wxMenuList, m_menus);
 596 }
 597
 598 // ----------------------------------------------------------------------------
 599 // wxMenuBar item access: the base class versions manage m_menus list, the
 600 // derived class should reflect the changes in the real menubar
 601 // ----------------------------------------------------------------------------
 602
 603 wxMenu *wxMenuBarBase::GetMenu(size_t pos) const
 604 {
 605     wxMenuList::compatibility_iterator node = m_menus.Item(pos);
 606     wxCHECK_MSG( node, NULL, wxT("bad index in wxMenuBar::GetMenu()") );
 607
 608     return node->GetData();
 609 }
 610
 611 bool wxMenuBarBase::Append(wxMenu *menu, const wxString& WXUNUSED(title))
 612 {
 613     wxCHECK_MSG( menu, false, wxT("can't append NULL menu") );
 614
 615     m_menus.Append(menu);
 616     menu->Attach(this);
 617
 618     return true;
 619 }
 620
 621 bool wxMenuBarBase::Insert(size_t pos, wxMenu *menu,
 622                            const wxString& title)
 623 {
 624     if ( pos == m_menus.GetCount() )
 625     {
 626         return wxMenuBarBase::Append(menu, title);
 627     }
 628     else // not at the end
 629     {
 630         wxCHECK_MSG( menu, false, wxT("can't insert NULL menu") );
 631
 632         wxMenuList::compatibility_iterator node = m_menus.Item(pos);
 633         wxCHECK_MSG( node, false, wxT("bad index in wxMenuBar::Insert()") );
 634
 635         m_menus.Insert(node, menu);
 636         menu->Attach(this);
 637
 638         return true;
 639     }
 640 }
 641
 642 wxMenu *wxMenuBarBase::Replace(size_t pos, wxMenu *menu,
 643                                const wxString& WXUNUSED(title))
 644 {
 645     wxCHECK_MSG( menu, NULL, wxT("can't insert NULL menu") );
 646
 647     wxMenuList::compatibility_iterator node = m_menus.Item(pos);
 648     wxCHECK_MSG( node, NULL, wxT("bad index in wxMenuBar::Replace()") );
 649
 650     wxMenu *menuOld = node->GetData();
 651     node->SetData(menu);
 652
 653     menu->Attach(this);
 654     menuOld->Detach();
 655
 656     return menuOld;
 657 }
 658
 659 wxMenu *wxMenuBarBase::Remove(size_t pos)
 660 {
 661     wxMenuList::compatibility_iterator node = m_menus.Item(pos);
 662     wxCHECK_MSG( node, NULL, wxT("bad index in wxMenuBar::Remove()") );
 663
 664     wxMenu *menu = node->GetData();
 665     m_menus.Erase(node);
 666     menu->Detach();
 667
 668     return menu;
 669 }
 670
 671 int wxMenuBarBase::FindMenu(const wxString& title) const
 672 {
 673     wxString label = wxMenuItem::GetLabelText(title);
 674
 675     size_t count = GetMenuCount();
 676     for ( size_t i = 0; i < count; i++ )
 677     {
 678         wxString title2 = GetMenuLabel(i);
 679         if ( (title2 == title) ||
 680              (wxMenuItem::GetLabelText(title2) == label) )
 681         {
 682             // found
 683             return (int)i;
 684         }
 685     }
 686
 687     return wxNOT_FOUND;
 688
 689 }
 690
 691 // ----------------------------------------------------------------------------
 692 // wxMenuBar attaching/detaching to/from the frame
 693 // ----------------------------------------------------------------------------
 694
 695 void wxMenuBarBase::Attach(wxFrame *frame)
 696 {
 697     wxASSERT_MSG( !IsAttached(), wxT("menubar already attached!") );
 698
 699     m_menuBarFrame = frame;
 700 }
 701
 702 void wxMenuBarBase::Detach()
 703 {
 704     wxASSERT_MSG( IsAttached(), wxT("detaching unattached menubar") );
 705
 706     m_menuBarFrame = NULL;
 707 }
 708
 709 // ----------------------------------------------------------------------------
 710 // wxMenuBar searching for items
 711 // ----------------------------------------------------------------------------
 712
 713 wxMenuItem *wxMenuBarBase::FindItem(int id, wxMenu **menu) const
 714 {
 715     if ( menu )
 716         *menu = NULL;
 717
 718     wxMenuItem *item = NULL;
 719     size_t count = GetMenuCount(), i;
 720     wxMenuList::const_iterator it;
 721     for ( i = 0, it = m_menus.begin(); !item && (i < count); i++, it++ )
 722     {
 723         item = (*it)->FindItem(id, menu);
 724     }
 725
 726     return item;
 727 }
 728
 729 int wxMenuBarBase::FindMenuItem(const wxString& menu, const wxString& item) const
 730 {
 731     wxString label = wxMenuItem::GetLabelText(menu);
 732
 733     int i = 0;
 734     wxMenuList::compatibility_iterator node;
 735     for ( node = m_menus.GetFirst(); node; node = node->GetNext(), i++ )
 736     {
 737         if ( label == wxMenuItem::GetLabelText(GetMenuLabel(i)) )
 738             return node->GetData()->FindItem(item);
 739     }
 740
 741     return wxNOT_FOUND;
 742 }
 743
 744 // ---------------------------------------------------------------------------
 745 // wxMenuBar functions forwarded to wxMenuItem
 746 // ---------------------------------------------------------------------------
 747
 748 void wxMenuBarBase::Enable(int id, bool enable)
 749 {
 750     wxMenuItem *item = FindItem(id);
 751
 752     wxCHECK_RET( item, wxT("attempt to enable an item which doesn't exist") );
 753
 754     item->Enable(enable);
 755 }
 756
 757 void wxMenuBarBase::Check(int id, bool check)
 758 {
 759     wxMenuItem *item = FindItem(id);
 760
 761     wxCHECK_RET( item, wxT("attempt to check an item which doesn't exist") );
 762     wxCHECK_RET( item->IsCheckable(), wxT("attempt to check an uncheckable item") );
 763
 764     item->Check(check);
 765 }
 766
 767 bool wxMenuBarBase::IsChecked(int id) const
 768 {
 769     wxMenuItem *item = FindItem(id);
 770
 771     wxCHECK_MSG( item, false, wxT("wxMenuBar::IsChecked(): no such item") );
 772
 773     return item->IsChecked();
 774 }
 775
 776 bool wxMenuBarBase::IsEnabled(int id) const
 777 {
 778     wxMenuItem *item = FindItem(id);
 779
 780     wxCHECK_MSG( item, false, wxT("wxMenuBar::IsEnabled(): no such item") );
 781
 782     return item->IsEnabled();
 783 }
 784
 785 void wxMenuBarBase::SetLabel(int id, const wxString& label)
 786 {
 787     wxMenuItem *item = FindItem(id);
 788
 789     wxCHECK_RET( item, wxT("wxMenuBar::SetLabel(): no such item") );
 790
 791     item->SetItemLabel(label);
 792 }
 793
 794 wxString wxMenuBarBase::GetLabel(int id) const
 795 {
 796     wxMenuItem *item = FindItem(id);
 797
 798     wxCHECK_MSG( item, wxEmptyString,
 799                  wxT("wxMenuBar::GetLabel(): no such item") );
 800
 801     return item->GetItemLabel();
 802 }
 803
 804 void wxMenuBarBase::SetHelpString(int id, const wxString& helpString)
 805 {
 806     wxMenuItem *item = FindItem(id);
 807
 808     wxCHECK_RET( item, wxT("wxMenuBar::SetHelpString(): no such item") );
 809
 810     item->SetHelp(helpString);
 811 }
 812
 813 wxString wxMenuBarBase::GetHelpString(int id) const
 814 {
 815     wxMenuItem *item = FindItem(id);
 816
 817     wxCHECK_MSG( item, wxEmptyString,
 818                  wxT("wxMenuBar::GetHelpString(): no such item") );
 819
 820     return item->GetHelp();
 821 }
 822
 823 void wxMenuBarBase::UpdateMenus( void )
 824 {
 825     wxEvtHandler* source;
 826     wxMenu* menu;
 827     int nCount = GetMenuCount();
 828     for (int n = 0; n < nCount; n++)
 829     {
 830         menu = GetMenu( n );
 831         if (menu != NULL)
 832         {
 833             source = menu->GetEventHandler();
 834             if (source != NULL)
 835                 menu->UpdateUI( source );
 836         }
 837     }
 838 }
 839
 840 #if WXWIN_COMPATIBILITY_2_8
 841 // get or change the label of the menu at given position
 842 void wxMenuBarBase::SetLabelTop(size_t pos, const wxString& label)
 843 {
 844     SetMenuLabel(pos, label);
 845 }
 846
 847 wxString wxMenuBarBase::GetLabelTop(size_t pos) const
 848 {
 849     return GetMenuLabelText(pos);
 850 }
 851 #endif
 852
 853 #endif // wxUSE_MENUS