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