src/common/menucmn.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        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) wxWindows team
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "menubase.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #if wxUSE_MENUS
  32
  33 #include <ctype.h>
  34
  35 #ifndef WX_PRECOMP
  36     #include "wx/intl.h"
  37     #include "wx/log.h"
  38     #include "wx/menu.h"
  39 #endif
  40
  41 // ----------------------------------------------------------------------------
  42 // template lists
  43 // ----------------------------------------------------------------------------
  44
  45 #include "wx/listimpl.cpp"
  46
  47 WX_DEFINE_LIST(wxMenuList);
  48 WX_DEFINE_LIST(wxMenuItemList);
  49
  50 // ============================================================================
  51 // implementation
  52 // ============================================================================
  53
  54 // ----------------------------------------------------------------------------
  55 // wxMenuItem
  56 // ----------------------------------------------------------------------------
  57
  58 wxMenuItemBase::wxMenuItemBase(wxMenu *parentMenu,
  59                                int id,
  60                                const wxString& text,
  61                                const wxString& help,
  62                                wxItemKind kind,
  63                                wxMenu *subMenu)
  64               : m_text(text),
  65                 m_help(help)
  66 {
  67     wxASSERT_MSG( parentMenu != NULL, wxT("menuitem should have a menu") );
  68
  69     m_parentMenu  = parentMenu;
  70     m_subMenu     = subMenu;
  71     m_isEnabled   = TRUE;
  72     m_isChecked   = FALSE;
  73     m_id          = id;
  74     m_kind        = kind;
  75 }
  76
  77 wxMenuItemBase::~wxMenuItemBase()
  78 {
  79     delete m_subMenu;
  80 }
  81
  82 #if wxUSE_ACCEL
  83
  84 // return wxAcceleratorEntry for the given menu string or NULL if none
  85 // specified
  86 wxAcceleratorEntry *wxGetAccelFromString(const wxString& label)
  87 {
  88     // check for accelerators: they are given after '\t'
  89     int posTab = label.Find(wxT('\t'));
  90     if ( posTab != wxNOT_FOUND ) {
  91         // parse the accelerator string
  92         int keyCode = 0;
  93         int accelFlags = wxACCEL_NORMAL;
  94         wxString current;
  95         for ( size_t n = (size_t)posTab + 1; n < label.Len(); n++ ) {
  96             if ( (label[n] == '+') || (label[n] == '-') ) {
  97                 if ( current == _("ctrl") )
  98                     accelFlags |= wxACCEL_CTRL;
  99                 else if ( current == _("alt") )
 100                     accelFlags |= wxACCEL_ALT;
 101                 else if ( current == _("shift") )
 102                     accelFlags |= wxACCEL_SHIFT;
 103                 else {
 104                     // we may have "Ctrl-+", for example, but we still want to
 105                     // catch typos like "Crtl-A" so only give the warning if we
 106                     // have something before the current '+' or '-', else take
 107                     // it as a literal symbol
 108                     if ( current.empty() )
 109                     {
 110                         current += label[n];
 111
 112                         // skip clearing it below
 113                         continue;
 114                     }
 115                     else
 116                     {
 117                         wxLogDebug(wxT("Unknown accel modifier: '%s'"),
 118                                    current.c_str());
 119                     }
 120                 }
 121
 122                 current.clear();
 123             }
 124             else {
 125                 current += wxTolower(label[n]);
 126             }
 127         }
 128
 129         if ( current.IsEmpty() ) {
 130             wxLogDebug(wxT("No accel key found, accel string ignored."));
 131         }
 132         else {
 133             if ( current.Len() == 1 ) {
 134                 // it's a letter
 135                 keyCode = current[0U];
 136
 137                 // Only call wxToupper if control, alt, or shift is held down,
 138                 // otherwise lower case accelerators won't work.
 139                 if (accelFlags != wxACCEL_NORMAL) {
 140                     keyCode = wxToupper(keyCode);
 141                 }
 142             }
 143             else {
 144                 // is it a function key?
 145                 if ( current[0U] == 'f' && isdigit(current[1U]) &&
 146                      (current.Len() == 2 ||
 147                      (current.Len() == 3 && isdigit(current[2U]))) ) {
 148                     int n;
 149                     wxSscanf(current.c_str() + 1, wxT("%d"), &n);
 150
 151                     keyCode = WXK_F1 + n - 1;
 152                 }
 153                 else {
 154                     // several special cases
 155                     current.MakeUpper();
 156                     if ( current == wxT("DEL") ) {
 157                         keyCode = WXK_DELETE;
 158                     }
 159                     else if ( current == wxT("DELETE") ) {
 160                         keyCode = WXK_DELETE;
 161                     }
 162                     else if ( current == wxT("INS") ) {
 163                         keyCode = WXK_INSERT;
 164                     }
 165                     else if ( current == wxT("INSERT") ) {
 166                         keyCode = WXK_INSERT;
 167                     }
 168                     else if ( current == wxT("ENTER") || current == wxT("RETURN") ) {
 169                         keyCode = WXK_RETURN;
 170                     }
 171                     else if ( current == wxT("PGUP") ) {
 172                         keyCode = WXK_PRIOR;
 173                     }
 174                     else if ( current == wxT("PGDN") ) {
 175                         keyCode = WXK_NEXT;
 176                     }
 177                     else if ( current == wxT("LEFT") ) {
 178                         keyCode = WXK_LEFT;
 179                     }
 180                     else if ( current == wxT("RIGHT") ) {
 181                         keyCode = WXK_RIGHT;
 182                     }
 183                     else if ( current == wxT("UP") ) {
 184                         keyCode = WXK_UP;
 185                     }
 186                     else if ( current == wxT("DOWN") ) {
 187                         keyCode = WXK_DOWN;
 188                     }
 189                     else if ( current == wxT("HOME") ) {
 190                         keyCode = WXK_HOME;
 191                     }
 192                     else if ( current == wxT("END") ) {
 193                         keyCode = WXK_END;
 194                     }
 195                     else if ( current == wxT("SPACE") ) {
 196                         keyCode = WXK_SPACE;
 197                     }
 198                     else if ( current == wxT("TAB") ) {
 199                         keyCode = WXK_TAB;
 200                     }
 201                     else
 202                     {
 203                         wxLogDebug(wxT("Unrecognized accel key '%s', accel string ignored."),
 204                                    current.c_str());
 205                     }
 206                 }
 207             }
 208         }
 209
 210         if ( keyCode ) {
 211             // we do have something
 212             return new wxAcceleratorEntry(accelFlags, keyCode);
 213         }
 214     }
 215
 216     return (wxAcceleratorEntry *)NULL;
 217 }
 218
 219 wxAcceleratorEntry *wxMenuItemBase::GetAccel() const
 220 {
 221     return wxGetAccelFromString(GetText());
 222 }
 223
 224 void wxMenuItemBase::SetAccel(wxAcceleratorEntry *accel)
 225 {
 226     wxString text = m_text.BeforeFirst(wxT('\t'));
 227     if ( accel )
 228     {
 229         text += wxT('\t');
 230
 231         int flags = accel->GetFlags();
 232         if ( flags & wxACCEL_ALT )
 233             text += wxT("Alt-");
 234         if ( flags & wxACCEL_CTRL )
 235             text += wxT("Ctrl-");
 236         if ( flags & wxACCEL_SHIFT )
 237             text += wxT("Shift-");
 238
 239         int code = accel->GetKeyCode();
 240         switch ( code )
 241         {
 242             case WXK_F1:
 243             case WXK_F2:
 244             case WXK_F3:
 245             case WXK_F4:
 246             case WXK_F5:
 247             case WXK_F6:
 248             case WXK_F7:
 249             case WXK_F8:
 250             case WXK_F9:
 251             case WXK_F10:
 252             case WXK_F11:
 253             case WXK_F12:
 254                 text << wxT('F') << code - WXK_F1 + 1;
 255                 break;
 256
 257             // if there are any other keys wxGetAccelFromString() may return,
 258             // we should process them here
 259
 260             default:
 261                 if ( wxIsalnum(code) )
 262                 {
 263                     text << (wxChar)code;
 264
 265                     break;
 266                 }
 267
 268                 wxFAIL_MSG( wxT("unknown keyboard accel") );
 269         }
 270     }
 271
 272     SetText(text);
 273 }
 274
 275 #endif // wxUSE_ACCEL
 276
 277 // ----------------------------------------------------------------------------
 278 // wxMenu ctor and dtor
 279 // ----------------------------------------------------------------------------
 280
 281 void wxMenuBase::Init(long style)
 282 {
 283     m_items.DeleteContents(TRUE);
 284
 285     m_menuBar = (wxMenuBar *)NULL;
 286     m_menuParent = (wxMenu *)NULL;
 287
 288     m_invokingWindow = (wxWindow *)NULL;
 289     m_style = style;
 290     m_clientData = (void *)NULL;
 291     m_eventHandler = this;
 292
 293 #if wxUSE_MENU_CALLBACK
 294     m_callback = (wxFunction) NULL;
 295 #endif // wxUSE_MENU_CALLBACK
 296 }
 297
 298 wxMenuBase::~wxMenuBase()
 299 {
 300     // nothing to do, wxMenuItemList dtor will delete the menu items.
 301
 302     // Actually, in GTK, the submenus have to get deleted first.
 303 }
 304
 305 // ----------------------------------------------------------------------------
 306 // wxMenu item adding/removing
 307 // ----------------------------------------------------------------------------
 308
 309 void wxMenuBase::AddSubMenu(wxMenu *submenu)
 310 {
 311     wxCHECK_RET( submenu, _T("can't add a NULL submenu") );
 312
 313     if ( m_menuBar )
 314     {
 315         submenu->Attach(m_menuBar);
 316     }
 317
 318     submenu->SetParent((wxMenu *)this);
 319 }
 320
 321 bool wxMenuBase::DoAppend(wxMenuItem *item)
 322 {
 323     wxCHECK_MSG( item, FALSE, wxT("invalid item in wxMenu::Append()") );
 324
 325     m_items.Append(item);
 326     if ( item->IsSubMenu() )
 327     {
 328         AddSubMenu(item->GetSubMenu());
 329     }
 330
 331     return TRUE;
 332 }
 333
 334 bool wxMenuBase::Insert(size_t pos, wxMenuItem *item)
 335 {
 336     wxCHECK_MSG( item, FALSE, wxT("invalid item in wxMenu::Insert") );
 337
 338     if ( pos == GetMenuItemCount() )
 339     {
 340         return DoAppend(item);
 341     }
 342     else
 343     {
 344         wxCHECK_MSG( pos < GetMenuItemCount(), FALSE,
 345                      wxT("invalid index in wxMenu::Insert") );
 346
 347         return DoInsert(pos, item);
 348     }
 349 }
 350
 351 bool wxMenuBase::DoInsert(size_t pos, wxMenuItem *item)
 352 {
 353     wxCHECK_MSG( item, FALSE, wxT("invalid item in wxMenu::Insert()") );
 354
 355     wxMenuItemList::Node *node = m_items.Item(pos);
 356     wxCHECK_MSG( node, FALSE, wxT("invalid index in wxMenu::Insert()") );
 357
 358     m_items.Insert(node, item);
 359     if ( item->IsSubMenu() )
 360     {
 361         AddSubMenu(item->GetSubMenu());
 362     }
 363
 364     return TRUE;
 365 }
 366
 367 wxMenuItem *wxMenuBase::Remove(wxMenuItem *item)
 368 {
 369     wxCHECK_MSG( item, NULL, wxT("invalid item in wxMenu::Remove") );
 370
 371     return DoRemove(item);
 372 }
 373
 374 wxMenuItem *wxMenuBase::DoRemove(wxMenuItem *item)
 375 {
 376     wxMenuItemList::Node *node = m_items.Find(item);
 377
 378     // if we get here, the item is valid or one of Remove() functions is broken
 379     wxCHECK_MSG( node, NULL, wxT("bug in wxMenu::Remove logic") );
 380
 381     // we detach the item, but we do delete the list node (i.e. don't call
 382     // DetachNode() here!)
 383     node->SetData((wxMenuItem *)NULL);  // to prevent it from deleting the item
 384     m_items.DeleteNode(node);
 385
 386     // item isn't attached to anything any more
 387     wxMenu *submenu = item->GetSubMenu();
 388     if ( submenu )
 389     {
 390         submenu->SetParent((wxMenu *)NULL);
 391     }
 392
 393     return item;
 394 }
 395
 396 bool wxMenuBase::Delete(wxMenuItem *item)
 397 {
 398     wxCHECK_MSG( item, FALSE, wxT("invalid item in wxMenu::Delete") );
 399
 400     return DoDelete(item);
 401 }
 402
 403 bool wxMenuBase::DoDelete(wxMenuItem *item)
 404 {
 405     wxMenuItem *item2 = DoRemove(item);
 406     wxCHECK_MSG( item2, FALSE, wxT("failed to delete menu item") );
 407
 408     // don't delete the submenu
 409     item2->SetSubMenu((wxMenu *)NULL);
 410
 411     delete item2;
 412
 413     return TRUE;
 414 }
 415
 416 bool wxMenuBase::Destroy(wxMenuItem *item)
 417 {
 418     wxCHECK_MSG( item, FALSE, wxT("invalid item in wxMenu::Destroy") );
 419
 420     return DoDestroy(item);
 421 }
 422
 423 bool wxMenuBase::DoDestroy(wxMenuItem *item)
 424 {
 425     wxMenuItem *item2 = DoRemove(item);
 426     wxCHECK_MSG( item2, FALSE, wxT("failed to delete menu item") );
 427
 428     delete item2;
 429
 430     return TRUE;
 431 }
 432
 433 // ----------------------------------------------------------------------------
 434 // wxMenu searching for items
 435 // ----------------------------------------------------------------------------
 436
 437 // Finds the item id matching the given string, -1 if not found.
 438 int wxMenuBase::FindItem(const wxString& text) const
 439 {
 440     wxString label = wxMenuItem::GetLabelFromText(text);
 441     for ( wxMenuItemList::Node *node = m_items.GetFirst();
 442           node;
 443           node = node->GetNext() )
 444     {
 445         wxMenuItem *item = node->GetData();
 446         if ( item->IsSubMenu() )
 447         {
 448             int rc = item->GetSubMenu()->FindItem(label);
 449             if ( rc != wxNOT_FOUND )
 450                 return rc;
 451         }
 452
 453         // we execute this code for submenus as well to alllow finding them by
 454         // name just like the ordinary items
 455         if ( !item->IsSeparator() )
 456         {
 457             if ( item->GetLabel() == label )
 458                 return item->GetId();
 459         }
 460     }
 461
 462     return wxNOT_FOUND;
 463 }
 464
 465 // recursive search for item by id
 466 wxMenuItem *wxMenuBase::FindItem(int itemId, wxMenu **itemMenu) const
 467 {
 468     if ( itemMenu )
 469         *itemMenu = NULL;
 470
 471     wxMenuItem *item = NULL;
 472     for ( wxMenuItemList::Node *node = m_items.GetFirst();
 473           node && !item;
 474           node = node->GetNext() )
 475     {
 476         item = node->GetData();
 477
 478         if ( item->GetId() == itemId )
 479         {
 480             if ( itemMenu )
 481                 *itemMenu = (wxMenu *)this;
 482         }
 483         else if ( item->IsSubMenu() )
 484         {
 485             item = item->GetSubMenu()->FindItem(itemId, itemMenu);
 486         }
 487         else
 488         {
 489             // don't exit the loop
 490             item = NULL;
 491         }
 492     }
 493
 494     return item;
 495 }
 496
 497 // non recursive search
 498 wxMenuItem *wxMenuBase::FindChildItem(int id, size_t *ppos) const
 499 {
 500     wxMenuItem *item = (wxMenuItem *)NULL;
 501     wxMenuItemList::Node *node = GetMenuItems().GetFirst();
 502
 503     size_t pos;
 504     for ( pos = 0; node; pos++ )
 505     {
 506         if ( node->GetData()->GetId() == id )
 507         {
 508             item = node->GetData();
 509
 510             break;
 511         }
 512
 513         node = node->GetNext();
 514     }
 515
 516     if ( ppos )
 517     {
 518         *ppos = item ? pos : (size_t)wxNOT_FOUND;
 519     }
 520
 521     return item;
 522 }
 523
 524 // ----------------------------------------------------------------------------
 525 // wxMenu helpers used by derived classes
 526 // ----------------------------------------------------------------------------
 527
 528 // Update a menu and all submenus recursively. source is the object that has
 529 // the update event handlers defined for it. If NULL, the menu or associated
 530 // window will be used.
 531 void wxMenuBase::UpdateUI(wxEvtHandler* source)
 532 {
 533     if ( !source && GetInvokingWindow() )
 534         source = GetInvokingWindow()->GetEventHandler();
 535     if ( !source )
 536         source = GetEventHandler();
 537     if ( !source )
 538         source = this;
 539
 540     wxMenuItemList::Node* node = GetMenuItems().GetFirst();
 541     while ( node )
 542     {
 543         wxMenuItem* item = node->GetData();
 544         if ( !item->IsSeparator() )
 545         {
 546             wxWindowID id = item->GetId();
 547             wxUpdateUIEvent event(id);
 548             event.SetEventObject( source );
 549
 550             if ( source->ProcessEvent(event) )
 551             {
 552                 // if anything changed, update the chanegd attribute
 553                 if (event.GetSetText())
 554                     SetLabel(id, event.GetText());
 555                 if (event.GetSetChecked())
 556                     Check(id, event.GetChecked());
 557                 if (event.GetSetEnabled())
 558                     Enable(id, event.GetEnabled());
 559             }
 560
 561             // recurse to the submenus
 562             if ( item->GetSubMenu() )
 563                 item->GetSubMenu()->UpdateUI(source);
 564         }
 565         //else: item is a separator (which don't process update UI events)
 566
 567         node = node->GetNext();
 568     }
 569 }
 570
 571 bool wxMenuBase::SendEvent(int id, int checked)
 572 {
 573     wxCommandEvent event(wxEVT_COMMAND_MENU_SELECTED, id);
 574     event.SetEventObject(this);
 575     event.SetInt(checked);
 576
 577     bool processed = FALSE;
 578
 579 #if wxUSE_MENU_CALLBACK
 580     // Try a callback
 581     if (m_callback)
 582     {
 583         (void)(*(m_callback))(*this, event);
 584         processed = TRUE;
 585     }
 586 #endif // wxUSE_MENU_CALLBACK
 587
 588     // Try the menu's event handler
 589     if ( !processed )
 590     {
 591         wxEvtHandler *handler = GetEventHandler();
 592         if ( handler )
 593             processed = handler->ProcessEvent(event);
 594     }
 595
 596     // Try the window the menu was popped up from (and up through the
 597     // hierarchy)
 598     if ( !processed )
 599     {
 600         const wxMenuBase *menu = this;
 601         while ( menu )
 602         {
 603             wxWindow *win = menu->GetInvokingWindow();
 604             if ( win )
 605             {
 606                 processed = win->GetEventHandler()->ProcessEvent(event);
 607                 break;
 608             }
 609
 610             menu = menu->GetParent();
 611         }
 612     }
 613
 614     return processed;
 615 }
 616
 617 // ----------------------------------------------------------------------------
 618 // wxMenu attaching/detaching to/from menu bar
 619 // ----------------------------------------------------------------------------
 620
 621 void wxMenuBase::Attach(wxMenuBarBase *menubar)
 622 {
 623     // use Detach() instead!
 624     wxASSERT_MSG( menubar, _T("menu can't be attached to NULL menubar") );
 625
 626     // use IsAttached() to prevent this from happening
 627     wxASSERT_MSG( !m_menuBar, _T("attaching menu twice?") );
 628
 629     m_menuBar = (wxMenuBar *)menubar;
 630 }
 631
 632 void wxMenuBase::Detach()
 633 {
 634     // use IsAttached() to prevent this from happening
 635     wxASSERT_MSG( m_menuBar, _T("detaching unattached menu?") );
 636
 637     m_menuBar = NULL;
 638 }
 639
 640 // ----------------------------------------------------------------------------
 641 // wxMenu functions forwarded to wxMenuItem
 642 // ----------------------------------------------------------------------------
 643
 644 void wxMenuBase::Enable( int id, bool enable )
 645 {
 646     wxMenuItem *item = FindItem(id);
 647
 648     wxCHECK_RET( item, wxT("wxMenu::Enable: no such item") );
 649
 650     item->Enable(enable);
 651 }
 652
 653 bool wxMenuBase::IsEnabled( int id ) const
 654 {
 655     wxMenuItem *item = FindItem(id);
 656
 657     wxCHECK_MSG( item, FALSE, wxT("wxMenu::IsEnabled: no such item") );
 658
 659     return item->IsEnabled();
 660 }
 661
 662 void wxMenuBase::Check( int id, bool enable )
 663 {
 664     wxMenuItem *item = FindItem(id);
 665
 666     wxCHECK_RET( item, wxT("wxMenu::Check: no such item") );
 667
 668     item->Check(enable);
 669 }
 670
 671 bool wxMenuBase::IsChecked( int id ) const
 672 {
 673     wxMenuItem *item = FindItem(id);
 674
 675     wxCHECK_MSG( item, FALSE, wxT("wxMenu::IsChecked: no such item") );
 676
 677     return item->IsChecked();
 678 }
 679
 680 void wxMenuBase::SetLabel( int id, const wxString &label )
 681 {
 682     wxMenuItem *item = FindItem(id);
 683
 684     wxCHECK_RET( item, wxT("wxMenu::SetLabel: no such item") );
 685
 686     item->SetText(label);
 687 }
 688
 689 wxString wxMenuBase::GetLabel( int id ) const
 690 {
 691     wxMenuItem *item = FindItem(id);
 692
 693     wxCHECK_MSG( item, wxT(""), wxT("wxMenu::GetLabel: no such item") );
 694
 695     return item->GetText();
 696 }
 697
 698 void wxMenuBase::SetHelpString( int id, const wxString& helpString )
 699 {
 700     wxMenuItem *item = FindItem(id);
 701
 702     wxCHECK_RET( item, wxT("wxMenu::SetHelpString: no such item") );
 703
 704     item->SetHelp( helpString );
 705 }
 706
 707 wxString wxMenuBase::GetHelpString( int id ) const
 708 {
 709     wxMenuItem *item = FindItem(id);
 710
 711     wxCHECK_MSG( item, wxT(""), wxT("wxMenu::GetHelpString: no such item") );
 712
 713     return item->GetHelp();
 714 }
 715
 716 // ----------------------------------------------------------------------------
 717 // wxMenuBarBase ctor and dtor
 718 // ----------------------------------------------------------------------------
 719
 720 wxMenuBarBase::wxMenuBarBase()
 721 {
 722     // we own the menus when we get them
 723     m_menus.DeleteContents(TRUE);
 724
 725     // not attached yet
 726     m_menuBarFrame = NULL;
 727 }
 728
 729 wxMenuBarBase::~wxMenuBarBase()
 730 {
 731     // nothing to do, the list will delete the menus because of the call to
 732     // DeleteContents() above
 733 }
 734
 735 // ----------------------------------------------------------------------------
 736 // wxMenuBar item access: the base class versions manage m_menus list, the
 737 // derived class should reflect the changes in the real menubar
 738 // ----------------------------------------------------------------------------
 739
 740 wxMenu *wxMenuBarBase::GetMenu(size_t pos) const
 741 {
 742     wxMenuList::Node *node = m_menus.Item(pos);
 743     wxCHECK_MSG( node, NULL, wxT("bad index in wxMenuBar::GetMenu()") );
 744
 745     return node->GetData();
 746 }
 747
 748 bool wxMenuBarBase::Append(wxMenu *menu, const wxString& WXUNUSED(title))
 749 {
 750     wxCHECK_MSG( menu, FALSE, wxT("can't append NULL menu") );
 751
 752     m_menus.Append(menu);
 753     menu->Attach(this);
 754
 755     return TRUE;
 756 }
 757
 758 bool wxMenuBarBase::Insert(size_t pos, wxMenu *menu,
 759                            const wxString& title)
 760 {
 761     if ( pos == m_menus.GetCount() )
 762     {
 763         return wxMenuBarBase::Append(menu, title);
 764     }
 765     else // not at the end
 766     {
 767         wxCHECK_MSG( menu, FALSE, wxT("can't insert NULL menu") );
 768
 769         wxMenuList::Node *node = m_menus.Item(pos);
 770         wxCHECK_MSG( node, FALSE, wxT("bad index in wxMenuBar::Insert()") );
 771
 772         m_menus.Insert(node, menu);
 773         menu->Attach(this);
 774
 775         return TRUE;
 776     }
 777 }
 778
 779 wxMenu *wxMenuBarBase::Replace(size_t pos, wxMenu *menu,
 780                                const wxString& WXUNUSED(title))
 781 {
 782     wxCHECK_MSG( menu, NULL, wxT("can't insert NULL menu") );
 783
 784     wxMenuList::Node *node = m_menus.Item(pos);
 785     wxCHECK_MSG( node, NULL, wxT("bad index in wxMenuBar::Replace()") );
 786
 787     wxMenu *menuOld = node->GetData();
 788     node->SetData(menu);
 789
 790     menu->Attach(this);
 791     menuOld->Detach();
 792
 793     return menuOld;
 794 }
 795
 796 wxMenu *wxMenuBarBase::Remove(size_t pos)
 797 {
 798     wxMenuList::Node *node = m_menus.Item(pos);
 799     wxCHECK_MSG( node, NULL, wxT("bad index in wxMenuBar::Remove()") );
 800
 801     node = m_menus.DetachNode(node);
 802     wxCHECK( node, NULL );  // unexpected
 803     wxMenu *menu = node->GetData();
 804     menu->Detach();
 805
 806     delete node;
 807
 808     return menu;
 809 }
 810
 811 int wxMenuBarBase::FindMenu(const wxString& title) const
 812 {
 813     wxString label = wxMenuItem::GetLabelFromText(title);
 814
 815     size_t count = GetMenuCount();
 816     for ( size_t i = 0; i < count; i++ )
 817     {
 818         wxString title2 = GetLabelTop(i);
 819         if ( (title2 == title) ||
 820              (wxMenuItem::GetLabelFromText(title2) == label) )
 821         {
 822             // found
 823             return (int)i;
 824         }
 825     }
 826
 827     return wxNOT_FOUND;
 828
 829 }
 830
 831 // ----------------------------------------------------------------------------
 832 // wxMenuBar attaching/detaching to/from the frame
 833 // ----------------------------------------------------------------------------
 834
 835 void wxMenuBarBase::Attach(wxFrame *frame)
 836 {
 837     wxASSERT_MSG( !IsAttached(), wxT("menubar already attached!") );
 838
 839     m_menuBarFrame = frame;
 840 }
 841
 842 void wxMenuBarBase::Detach()
 843 {
 844     wxASSERT_MSG( IsAttached(), wxT("detaching unattached menubar") );
 845
 846     m_menuBarFrame = NULL;
 847 }
 848
 849 // ----------------------------------------------------------------------------
 850 // wxMenuBar searching for items
 851 // ----------------------------------------------------------------------------
 852
 853 wxMenuItem *wxMenuBarBase::FindItem(int id, wxMenu **menu) const
 854 {
 855     if ( menu )
 856         *menu = NULL;
 857
 858     wxMenuItem *item = NULL;
 859     size_t count = GetMenuCount();
 860     for ( size_t i = 0; !item && (i < count); i++ )
 861     {
 862         item = m_menus[i]->FindItem(id, menu);
 863     }
 864
 865     return item;
 866 }
 867
 868 int wxMenuBarBase::FindMenuItem(const wxString& menu, const wxString& item) const
 869 {
 870     wxString label = wxMenuItem::GetLabelFromText(menu);
 871
 872     int i = 0;
 873     wxMenuList::Node *node;
 874     for ( node = m_menus.GetFirst(); node; node = node->GetNext(), i++ )
 875     {
 876         if ( label == wxMenuItem::GetLabelFromText(GetLabelTop(i)) )
 877             return node->GetData()->FindItem(item);
 878     }
 879
 880     return wxNOT_FOUND;
 881 }
 882
 883 // ---------------------------------------------------------------------------
 884 // wxMenuBar functions forwarded to wxMenuItem
 885 // ---------------------------------------------------------------------------
 886
 887 void wxMenuBarBase::Enable(int id, bool enable)
 888 {
 889     wxMenuItem *item = FindItem(id);
 890
 891     wxCHECK_RET( item, wxT("attempt to enable an item which doesn't exist") );
 892
 893     item->Enable(enable);
 894 }
 895
 896 void wxMenuBarBase::Check(int id, bool check)
 897 {
 898     wxMenuItem *item = FindItem(id);
 899
 900     wxCHECK_RET( item, wxT("attempt to check an item which doesn't exist") );
 901     wxCHECK_RET( item->IsCheckable(), wxT("attempt to check an uncheckable item") );
 902
 903     item->Check(check);
 904 }
 905
 906 bool wxMenuBarBase::IsChecked(int id) const
 907 {
 908     wxMenuItem *item = FindItem(id);
 909
 910     wxCHECK_MSG( item, FALSE, wxT("wxMenuBar::IsChecked(): no such item") );
 911
 912     return item->IsChecked();
 913 }
 914
 915 bool wxMenuBarBase::IsEnabled(int id) const
 916 {
 917     wxMenuItem *item = FindItem(id);
 918
 919     wxCHECK_MSG( item, FALSE, wxT("wxMenuBar::IsEnabled(): no such item") );
 920
 921     return item->IsEnabled();
 922 }
 923
 924 void wxMenuBarBase::SetLabel(int id, const wxString& label)
 925 {
 926     wxMenuItem *item = FindItem(id);
 927
 928     wxCHECK_RET( item, wxT("wxMenuBar::SetLabel(): no such item") );
 929
 930     item->SetText(label);
 931 }
 932
 933 wxString wxMenuBarBase::GetLabel(int id) const
 934 {
 935     wxMenuItem *item = FindItem(id);
 936
 937     wxCHECK_MSG( item, wxEmptyString,
 938                  wxT("wxMenuBar::GetLabel(): no such item") );
 939
 940     return item->GetText();
 941 }
 942
 943 void wxMenuBarBase::SetHelpString(int id, const wxString& helpString)
 944 {
 945     wxMenuItem *item = FindItem(id);
 946
 947     wxCHECK_RET( item, wxT("wxMenuBar::SetHelpString(): no such item") );
 948
 949     item->SetHelp(helpString);
 950 }
 951
 952 wxString wxMenuBarBase::GetHelpString(int id) const
 953 {
 954     wxMenuItem *item = FindItem(id);
 955
 956     wxCHECK_MSG( item, wxEmptyString,
 957                  wxT("wxMenuBar::GetHelpString(): no such item") );
 958
 959     return item->GetHelp();
 960 }
 961
 962 #endif // wxUSE_MENUS