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) wxWidgets team
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  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     if (m_id == wxID_ANY)
  76         m_id = wxNewId();
  77     if (m_id == wxID_SEPARATOR)
  78         m_kind = wxITEM_SEPARATOR;
  79 }
  80
  81 wxMenuItemBase::~wxMenuItemBase()
  82 {
  83     delete m_subMenu;
  84 }
  85
  86 #if wxUSE_ACCEL
  87
  88 static inline bool CompareAccelString(const wxString& str, const wxChar *accel)
  89 {
  90 #if wxUSE_INTL
  91     return str == accel || str == wxGetTranslation(accel);
  92 #else
  93     return str == accel;
  94 #endif
  95 }
  96
  97 // return wxAcceleratorEntry for the given menu string or NULL if none
  98 // specified
  99 wxAcceleratorEntry *wxGetAccelFromString(const wxString& label)
 100 {
 101     // wxPrintf( wxT("label %s\n"), label.c_str() );
 102
 103     // check for accelerators: they are given after '\t'
 104     int posTab = label.Find(wxT('\t'));
 105     if ( posTab != wxNOT_FOUND ) {
 106         // parse the accelerator string
 107         int keyCode = 0;
 108         int accelFlags = wxACCEL_NORMAL;
 109         wxString current;
 110         for ( size_t n = (size_t)posTab + 1; n < label.Len(); n++ ) {
 111             if ( (label[n] == '+') || (label[n] == '-') ) {
 112                 if ( CompareAccelString(current, wxTRANSLATE("ctrl")) )
 113                     accelFlags |= wxACCEL_CTRL;
 114                 else if ( CompareAccelString(current, wxTRANSLATE("alt")) )
 115                     accelFlags |= wxACCEL_ALT;
 116                 else if ( CompareAccelString(current, wxTRANSLATE("shift")) )
 117                     accelFlags |= wxACCEL_SHIFT;
 118                 else {
 119                     // we may have "Ctrl-+", for example, but we still want to
 120                     // catch typos like "Crtl-A" so only give the warning if we
 121                     // have something before the current '+' or '-', else take
 122                     // it as a literal symbol
 123                     if ( current.empty() )
 124                     {
 125                         current += label[n];
 126
 127                         // skip clearing it below
 128                         continue;
 129                     }
 130                     else
 131                     {
 132                         wxLogDebug(wxT("Unknown accel modifier: '%s'"),
 133                                    current.c_str());
 134                     }
 135                 }
 136
 137                 current.clear();
 138             }
 139             else {
 140                 current += (wxChar) wxTolower(label[n]);
 141             }
 142         }
 143
 144         if ( current.IsEmpty() ) {
 145             wxLogDebug(wxT("No accel key found, accel string ignored."));
 146         }
 147         else {
 148             if ( current.Len() == 1 ) {
 149                 // it's a letter
 150                 keyCode = current[0U];
 151
 152                 // Only call wxToupper if control, alt, or shift is held down,
 153                 // otherwise lower case accelerators won't work.
 154                 if (accelFlags != wxACCEL_NORMAL) {
 155                     keyCode = wxToupper(keyCode);
 156                 }
 157             }
 158             else {
 159                 // is it a function key?
 160                 if ( current[0U] == 'f' && wxIsdigit(current[1U]) &&
 161                      (current.Len() == 2 ||
 162                      (current.Len() == 3 && wxIsdigit(current[2U]))) ) {
 163                     int n;
 164                     wxSscanf(current.c_str() + 1, wxT("%d"), &n);
 165
 166                     keyCode = WXK_F1 + n - 1;
 167                 }
 168                 else {
 169                     // several special cases
 170                     current.MakeUpper();
 171                     if ( current == wxT("DEL") )
 172                         keyCode = WXK_DELETE;
 173                     else if ( current == wxT("DELETE") )
 174                         keyCode = WXK_DELETE;
 175                     else if ( current == wxT("BACK") )
 176                         keyCode = WXK_BACK;
 177                     else if ( current == wxT("INS") )
 178                         keyCode = WXK_INSERT;
 179                     else if ( current == wxT("INSERT") )
 180                         keyCode = WXK_INSERT;
 181                     else if ( current == wxT("ENTER") || current == wxT("RETURN") )
 182                         keyCode = WXK_RETURN;
 183                     else if ( current == wxT("PGUP") )
 184                         keyCode = WXK_PRIOR;
 185                     else if ( current == wxT("PGDN") )
 186                         keyCode = WXK_NEXT;
 187                     else if ( current == wxT("LEFT") )
 188                         keyCode = WXK_LEFT;
 189                     else if ( current == wxT("RIGHT") )
 190                         keyCode = WXK_RIGHT;
 191                     else if ( current == wxT("UP") )
 192                         keyCode = WXK_UP;
 193                     else if ( current == wxT("DOWN") )
 194                         keyCode = WXK_DOWN;
 195                     else if ( current == wxT("HOME") )
 196                         keyCode = WXK_HOME;
 197                     else if ( current == wxT("END") )
 198                         keyCode = WXK_END;
 199                     else if ( current == wxT("SPACE") )
 200                         keyCode = WXK_SPACE;
 201                     else if ( current == wxT("TAB") )
 202                         keyCode = WXK_TAB;
 203                     else if ( current == wxT("ESC") || current == wxT("ESCAPE") )
 204                         keyCode = WXK_ESCAPE;
 205                     else
 206                     {
 207                         wxLogDebug(wxT("Unrecognized accel key '%s', accel string ignored."),
 208                                    current.c_str());
 209                     }
 210                 }
 211             }
 212         }
 213
 214         if ( keyCode ) {
 215             // we do have something
 216             return new wxAcceleratorEntry(accelFlags, keyCode);
 217         }
 218     }
 219
 220     return (wxAcceleratorEntry *)NULL;
 221 }
 222
 223 wxAcceleratorEntry *wxMenuItemBase::GetAccel() const
 224 {
 225     return wxGetAccelFromString(GetText());
 226 }
 227
 228 void wxMenuItemBase::SetAccel(wxAcceleratorEntry *accel)
 229 {
 230     wxString text = m_text.BeforeFirst(wxT('\t'));
 231     if ( accel )
 232     {
 233         text += wxT('\t');
 234
 235         int flags = accel->GetFlags();
 236         if ( flags & wxACCEL_ALT )
 237             text += wxT("Alt-");
 238         if ( flags & wxACCEL_CTRL )
 239             text += wxT("Ctrl-");
 240         if ( flags & wxACCEL_SHIFT )
 241             text += wxT("Shift-");
 242
 243         int code = accel->GetKeyCode();
 244         switch ( code )
 245         {
 246             case WXK_F1:
 247             case WXK_F2:
 248             case WXK_F3:
 249             case WXK_F4:
 250             case WXK_F5:
 251             case WXK_F6:
 252             case WXK_F7:
 253             case WXK_F8:
 254             case WXK_F9:
 255             case WXK_F10:
 256             case WXK_F11:
 257             case WXK_F12:
 258                 text << wxT('F') << code - WXK_F1 + 1;
 259                 break;
 260
 261             // if there are any other keys wxGetAccelFromString() may return,
 262             // we should process them here
 263
 264             default:
 265                 if ( wxIsalnum(code) )
 266                 {
 267                     text << (wxChar)code;
 268
 269                     break;
 270                 }
 271
 272                 wxFAIL_MSG( wxT("unknown keyboard accel") );
 273         }
 274     }
 275
 276     SetText(text);
 277 }
 278
 279 #endif // wxUSE_ACCEL
 280
 281 bool wxMenuBase::ms_locked = true;
 282
 283 // ----------------------------------------------------------------------------
 284 // wxMenu ctor and dtor
 285 // ----------------------------------------------------------------------------
 286
 287 void wxMenuBase::Init(long style)
 288 {
 289     m_menuBar = (wxMenuBar *)NULL;
 290     m_menuParent = (wxMenu *)NULL;
 291
 292     m_invokingWindow = (wxWindow *)NULL;
 293     m_style = style;
 294     m_clientData = (void *)NULL;
 295     m_eventHandler = this;
 296 }
 297
 298 wxMenuBase::~wxMenuBase()
 299 {
 300     WX_CLEAR_LIST(wxMenuItemList, m_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     submenu->SetParent((wxMenu *)this);
 314 }
 315
 316 wxMenuItem* wxMenuBase::DoAppend(wxMenuItem *item)
 317 {
 318     wxCHECK_MSG( item, NULL, wxT("invalid item in wxMenu::Append()") );
 319
 320     m_items.Append(item);
 321     item->SetMenu((wxMenu*)this);
 322     if ( item->IsSubMenu() )
 323     {
 324         AddSubMenu(item->GetSubMenu());
 325     }
 326
 327     return item;
 328 }
 329
 330 wxMenuItem* wxMenuBase::Insert(size_t pos, wxMenuItem *item)
 331 {
 332     wxCHECK_MSG( item, NULL, wxT("invalid item in wxMenu::Insert") );
 333
 334     if ( pos == GetMenuItemCount() )
 335     {
 336         return DoAppend(item);
 337     }
 338     else
 339     {
 340         wxCHECK_MSG( pos < GetMenuItemCount(), FALSE,
 341                      wxT("invalid index in wxMenu::Insert") );
 342
 343         return DoInsert(pos, item);
 344     }
 345 }
 346
 347 wxMenuItem* wxMenuBase::DoInsert(size_t pos, wxMenuItem *item)
 348 {
 349     wxCHECK_MSG( item, NULL, wxT("invalid item in wxMenu::Insert()") );
 350
 351     wxMenuItemList::compatibility_iterator node = m_items.Item(pos);
 352     wxCHECK_MSG( node, FALSE, wxT("invalid index in wxMenu::Insert()") );
 353
 354     m_items.Insert(node, item);
 355     item->SetMenu((wxMenu*)this);
 356     if ( item->IsSubMenu() )
 357     {
 358         AddSubMenu(item->GetSubMenu());
 359     }
 360
 361     return item;
 362 }
 363
 364 wxMenuItem *wxMenuBase::Remove(wxMenuItem *item)
 365 {
 366     wxCHECK_MSG( item, NULL, wxT("invalid item in wxMenu::Remove") );
 367
 368     return DoRemove(item);
 369 }
 370
 371 wxMenuItem *wxMenuBase::DoRemove(wxMenuItem *item)
 372 {
 373     wxMenuItemList::compatibility_iterator node = m_items.Find(item);
 374
 375     // if we get here, the item is valid or one of Remove() functions is broken
 376     wxCHECK_MSG( node, NULL, wxT("bug in wxMenu::Remove logic") );
 377
 378     // we detach the item, but we do delete the list node (i.e. don't call
 379     // DetachNode() here!)
 380     m_items.Erase(node);
 381
 382     // item isn't attached to anything any more
 383     item->SetMenu((wxMenu *)NULL);
 384     wxMenu *submenu = item->GetSubMenu();
 385     if ( submenu )
 386     {
 387         submenu->SetParent((wxMenu *)NULL);
 388     }
 389
 390     return item;
 391 }
 392
 393 bool wxMenuBase::Delete(wxMenuItem *item)
 394 {
 395     wxCHECK_MSG( item, FALSE, wxT("invalid item in wxMenu::Delete") );
 396
 397     return DoDelete(item);
 398 }
 399
 400 bool wxMenuBase::DoDelete(wxMenuItem *item)
 401 {
 402     wxMenuItem *item2 = DoRemove(item);
 403     wxCHECK_MSG( item2, FALSE, wxT("failed to delete menu item") );
 404
 405     // don't delete the submenu
 406     item2->SetSubMenu((wxMenu *)NULL);
 407
 408     delete item2;
 409
 410     return TRUE;
 411 }
 412
 413 bool wxMenuBase::Destroy(wxMenuItem *item)
 414 {
 415     wxCHECK_MSG( item, FALSE, wxT("invalid item in wxMenu::Destroy") );
 416
 417     return DoDestroy(item);
 418 }
 419
 420 bool wxMenuBase::DoDestroy(wxMenuItem *item)
 421 {
 422     wxMenuItem *item2 = DoRemove(item);
 423     wxCHECK_MSG( item2, FALSE, wxT("failed to delete menu item") );
 424
 425     delete item2;
 426
 427     return TRUE;
 428 }
 429
 430 // ----------------------------------------------------------------------------
 431 // wxMenu searching for items
 432 // ----------------------------------------------------------------------------
 433
 434 // Finds the item id matching the given string, -1 if not found.
 435 int wxMenuBase::FindItem(const wxString& text) const
 436 {
 437     wxString label = wxMenuItem::GetLabelFromText(text);
 438     for ( wxMenuItemList::compatibility_iterator node = m_items.GetFirst();
 439           node;
 440           node = node->GetNext() )
 441     {
 442         wxMenuItem *item = node->GetData();
 443         if ( item->IsSubMenu() )
 444         {
 445             int rc = item->GetSubMenu()->FindItem(label);
 446             if ( rc != wxNOT_FOUND )
 447                 return rc;
 448         }
 449
 450         // we execute this code for submenus as well to alllow finding them by
 451         // name just like the ordinary items
 452         if ( !item->IsSeparator() )
 453         {
 454             if ( item->GetLabel() == label )
 455                 return item->GetId();
 456         }
 457     }
 458
 459     return wxNOT_FOUND;
 460 }
 461
 462 // recursive search for item by id
 463 wxMenuItem *wxMenuBase::FindItem(int itemId, wxMenu **itemMenu) const
 464 {
 465     if ( itemMenu )
 466         *itemMenu = NULL;
 467
 468     wxMenuItem *item = NULL;
 469     for ( wxMenuItemList::compatibility_iterator node = m_items.GetFirst();
 470           node && !item;
 471           node = node->GetNext() )
 472     {
 473         item = node->GetData();
 474
 475         if ( item->GetId() == itemId )
 476         {
 477             if ( itemMenu )
 478                 *itemMenu = (wxMenu *)this;
 479         }
 480         else if ( item->IsSubMenu() )
 481         {
 482             item = item->GetSubMenu()->FindItem(itemId, itemMenu);
 483         }
 484         else
 485         {
 486             // don't exit the loop
 487             item = NULL;
 488         }
 489     }
 490
 491     return item;
 492 }
 493
 494 // non recursive search
 495 wxMenuItem *wxMenuBase::FindChildItem(int id, size_t *ppos) const
 496 {
 497     wxMenuItem *item = (wxMenuItem *)NULL;
 498     wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();
 499
 500     size_t pos;
 501     for ( pos = 0; node; pos++ )
 502     {
 503         if ( node->GetData()->GetId() == id )
 504         {
 505             item = node->GetData();
 506
 507             break;
 508         }
 509
 510         node = node->GetNext();
 511     }
 512
 513     if ( ppos )
 514     {
 515         *ppos = item ? pos : (size_t)wxNOT_FOUND;
 516     }
 517
 518     return item;
 519 }
 520
 521 // find by position
 522 wxMenuItem* wxMenuBase::FindItemByPosition(size_t position) const
 523 {
 524     wxCHECK_MSG( position < m_items.GetCount(), NULL,
 525                  _T("wxMenu::FindItemByPosition(): invalid menu index") );
 526
 527     return m_items.Item( position )->GetData();
 528 }
 529
 530 // ----------------------------------------------------------------------------
 531 // wxMenu helpers used by derived classes
 532 // ----------------------------------------------------------------------------
 533
 534 // Update a menu and all submenus recursively. source is the object that has
 535 // the update event handlers defined for it. If NULL, the menu or associated
 536 // window will be used.
 537 void wxMenuBase::UpdateUI(wxEvtHandler* source)
 538 {
 539     if (GetInvokingWindow())
 540     {
 541         // Don't update menus if the parent
 542         // frame is about to get deleted
 543         wxWindow *tlw = wxGetTopLevelParent( GetInvokingWindow() );
 544         if (tlw && wxPendingDelete.Member(tlw))
 545             return;
 546     }
 547
 548     if ( !source && GetInvokingWindow() )
 549         source = GetInvokingWindow()->GetEventHandler();
 550     if ( !source )
 551         source = GetEventHandler();
 552     if ( !source )
 553         source = this;
 554
 555     wxMenuItemList::compatibility_iterator  node = GetMenuItems().GetFirst();
 556     while ( node )
 557     {
 558         wxMenuItem* item = node->GetData();
 559         if ( !item->IsSeparator() )
 560         {
 561             wxWindowID id = item->GetId();
 562             wxUpdateUIEvent event(id);
 563             event.SetEventObject( source );
 564
 565             if ( source->ProcessEvent(event) )
 566             {
 567                 // if anything changed, update the changed attribute
 568                 if (event.GetSetText())
 569                     SetLabel(id, event.GetText());
 570                 if (event.GetSetChecked())
 571                     Check(id, event.GetChecked());
 572                 if (event.GetSetEnabled())
 573                     Enable(id, event.GetEnabled());
 574             }
 575
 576             // recurse to the submenus
 577             if ( item->GetSubMenu() )
 578                 item->GetSubMenu()->UpdateUI(source);
 579         }
 580         //else: item is a separator (which doesn't process update UI events)
 581
 582         node = node->GetNext();
 583     }
 584 }
 585
 586 bool wxMenuBase::SendEvent(int id, int checked)
 587 {
 588     wxCommandEvent event(wxEVT_COMMAND_MENU_SELECTED, id);
 589     event.SetEventObject(this);
 590     event.SetInt(checked);
 591
 592     bool processed = FALSE;
 593
 594     // Try the menu's event handler
 595     if ( !processed )
 596     {
 597         wxEvtHandler *handler = GetEventHandler();
 598         if ( handler )
 599             processed = handler->ProcessEvent(event);
 600     }
 601
 602     // Try the window the menu was popped up from (and up through the
 603     // hierarchy)
 604     if ( !processed )
 605     {
 606         const wxMenuBase *menu = this;
 607         while ( menu )
 608         {
 609             wxWindow *win = menu->GetInvokingWindow();
 610             if ( win )
 611             {
 612                 processed = win->GetEventHandler()->ProcessEvent(event);
 613                 break;
 614             }
 615
 616             menu = menu->GetParent();
 617         }
 618     }
 619
 620     return processed;
 621 }
 622
 623 // ----------------------------------------------------------------------------
 624 // wxMenu attaching/detaching to/from menu bar
 625 // ----------------------------------------------------------------------------
 626
 627 wxMenuBar* wxMenuBase::GetMenuBar() const
 628 {
 629     if(GetParent())
 630         return GetParent()->GetMenuBar();
 631     return m_menuBar;
 632 }
 633
 634 void wxMenuBase::Attach(wxMenuBarBase *menubar)
 635 {
 636     // use Detach() instead!
 637     wxASSERT_MSG( menubar, _T("menu can't be attached to NULL menubar") );
 638
 639     // use IsAttached() to prevent this from happening
 640     wxASSERT_MSG( !m_menuBar, _T("attaching menu twice?") );
 641
 642     m_menuBar = (wxMenuBar *)menubar;
 643 }
 644
 645 void wxMenuBase::Detach()
 646 {
 647     // use IsAttached() to prevent this from happening
 648     wxASSERT_MSG( m_menuBar, _T("detaching unattached menu?") );
 649
 650     m_menuBar = NULL;
 651 }
 652
 653 // ----------------------------------------------------------------------------
 654 // wxMenu functions forwarded to wxMenuItem
 655 // ----------------------------------------------------------------------------
 656
 657 void wxMenuBase::Enable( int id, bool enable )
 658 {
 659     wxMenuItem *item = FindItem(id);
 660
 661     wxCHECK_RET( item, wxT("wxMenu::Enable: no such item") );
 662
 663     item->Enable(enable);
 664 }
 665
 666 bool wxMenuBase::IsEnabled( int id ) const
 667 {
 668     wxMenuItem *item = FindItem(id);
 669
 670     wxCHECK_MSG( item, FALSE, wxT("wxMenu::IsEnabled: no such item") );
 671
 672     return item->IsEnabled();
 673 }
 674
 675 void wxMenuBase::Check( int id, bool enable )
 676 {
 677     wxMenuItem *item = FindItem(id);
 678
 679     wxCHECK_RET( item, wxT("wxMenu::Check: no such item") );
 680
 681     item->Check(enable);
 682 }
 683
 684 bool wxMenuBase::IsChecked( int id ) const
 685 {
 686     wxMenuItem *item = FindItem(id);
 687
 688     wxCHECK_MSG( item, FALSE, wxT("wxMenu::IsChecked: no such item") );
 689
 690     return item->IsChecked();
 691 }
 692
 693 void wxMenuBase::SetLabel( int id, const wxString &label )
 694 {
 695     wxMenuItem *item = FindItem(id);
 696
 697     wxCHECK_RET( item, wxT("wxMenu::SetLabel: no such item") );
 698
 699     item->SetText(label);
 700 }
 701
 702 wxString wxMenuBase::GetLabel( int id ) const
 703 {
 704     wxMenuItem *item = FindItem(id);
 705
 706     wxCHECK_MSG( item, wxT(""), wxT("wxMenu::GetLabel: no such item") );
 707
 708     return item->GetText();
 709 }
 710
 711 void wxMenuBase::SetHelpString( int id, const wxString& helpString )
 712 {
 713     wxMenuItem *item = FindItem(id);
 714
 715     wxCHECK_RET( item, wxT("wxMenu::SetHelpString: no such item") );
 716
 717     item->SetHelp( helpString );
 718 }
 719
 720 wxString wxMenuBase::GetHelpString( int id ) const
 721 {
 722     wxMenuItem *item = FindItem(id);
 723
 724     wxCHECK_MSG( item, wxT(""), wxT("wxMenu::GetHelpString: no such item") );
 725
 726     return item->GetHelp();
 727 }
 728
 729 // ----------------------------------------------------------------------------
 730 // wxMenuBarBase ctor and dtor
 731 // ----------------------------------------------------------------------------
 732
 733 wxMenuBarBase::wxMenuBarBase()
 734 {
 735     // not attached yet
 736     m_menuBarFrame = NULL;
 737 }
 738
 739 wxMenuBarBase::~wxMenuBarBase()
 740 {
 741     WX_CLEAR_LIST(wxMenuList, m_menus);
 742 }
 743
 744 // ----------------------------------------------------------------------------
 745 // wxMenuBar item access: the base class versions manage m_menus list, the
 746 // derived class should reflect the changes in the real menubar
 747 // ----------------------------------------------------------------------------
 748
 749 wxMenu *wxMenuBarBase::GetMenu(size_t pos) const
 750 {
 751     wxMenuList::compatibility_iterator node = m_menus.Item(pos);
 752     wxCHECK_MSG( node, NULL, wxT("bad index in wxMenuBar::GetMenu()") );
 753
 754     return node->GetData();
 755 }
 756
 757 bool wxMenuBarBase::Append(wxMenu *menu, const wxString& WXUNUSED(title))
 758 {
 759     wxCHECK_MSG( menu, FALSE, wxT("can't append NULL menu") );
 760
 761     m_menus.Append(menu);
 762     menu->Attach(this);
 763
 764     return TRUE;
 765 }
 766
 767 bool wxMenuBarBase::Insert(size_t pos, wxMenu *menu,
 768                            const wxString& title)
 769 {
 770     if ( pos == m_menus.GetCount() )
 771     {
 772         return wxMenuBarBase::Append(menu, title);
 773     }
 774     else // not at the end
 775     {
 776         wxCHECK_MSG( menu, FALSE, wxT("can't insert NULL menu") );
 777
 778         wxMenuList::compatibility_iterator node = m_menus.Item(pos);
 779         wxCHECK_MSG( node, FALSE, wxT("bad index in wxMenuBar::Insert()") );
 780
 781         m_menus.Insert(node, menu);
 782         menu->Attach(this);
 783
 784         return TRUE;
 785     }
 786 }
 787
 788 wxMenu *wxMenuBarBase::Replace(size_t pos, wxMenu *menu,
 789                                const wxString& WXUNUSED(title))
 790 {
 791     wxCHECK_MSG( menu, NULL, wxT("can't insert NULL menu") );
 792
 793     wxMenuList::compatibility_iterator node = m_menus.Item(pos);
 794     wxCHECK_MSG( node, NULL, wxT("bad index in wxMenuBar::Replace()") );
 795
 796     wxMenu *menuOld = node->GetData();
 797     node->SetData(menu);
 798
 799     menu->Attach(this);
 800     menuOld->Detach();
 801
 802     return menuOld;
 803 }
 804
 805 wxMenu *wxMenuBarBase::Remove(size_t pos)
 806 {
 807     wxMenuList::compatibility_iterator node = m_menus.Item(pos);
 808     wxCHECK_MSG( node, NULL, wxT("bad index in wxMenuBar::Remove()") );
 809
 810     wxMenu *menu = node->GetData();
 811     m_menus.Erase(node);
 812     menu->Detach();
 813
 814     return menu;
 815 }
 816
 817 int wxMenuBarBase::FindMenu(const wxString& title) const
 818 {
 819     wxString label = wxMenuItem::GetLabelFromText(title);
 820
 821     size_t count = GetMenuCount();
 822     for ( size_t i = 0; i < count; i++ )
 823     {
 824         wxString title2 = GetLabelTop(i);
 825         if ( (title2 == title) ||
 826              (wxMenuItem::GetLabelFromText(title2) == label) )
 827         {
 828             // found
 829             return (int)i;
 830         }
 831     }
 832
 833     return wxNOT_FOUND;
 834
 835 }
 836
 837 // ----------------------------------------------------------------------------
 838 // wxMenuBar attaching/detaching to/from the frame
 839 // ----------------------------------------------------------------------------
 840
 841 void wxMenuBarBase::Attach(wxFrame *frame)
 842 {
 843     wxASSERT_MSG( !IsAttached(), wxT("menubar already attached!") );
 844
 845     m_menuBarFrame = frame;
 846 }
 847
 848 void wxMenuBarBase::Detach()
 849 {
 850     wxASSERT_MSG( IsAttached(), wxT("detaching unattached menubar") );
 851
 852     m_menuBarFrame = NULL;
 853 }
 854
 855 // ----------------------------------------------------------------------------
 856 // wxMenuBar searching for items
 857 // ----------------------------------------------------------------------------
 858
 859 wxMenuItem *wxMenuBarBase::FindItem(int id, wxMenu **menu) const
 860 {
 861     if ( menu )
 862         *menu = NULL;
 863
 864     wxMenuItem *item = NULL;
 865     size_t count = GetMenuCount(), i;
 866     wxMenuList::const_iterator it;
 867     for ( i = 0, it = m_menus.begin(); !item && (i < count); i++, it++ )
 868     {
 869         item = (*it)->FindItem(id, menu);
 870     }
 871
 872     return item;
 873 }
 874
 875 int wxMenuBarBase::FindMenuItem(const wxString& menu, const wxString& item) const
 876 {
 877     wxString label = wxMenuItem::GetLabelFromText(menu);
 878
 879     int i = 0;
 880     wxMenuList::compatibility_iterator node;
 881     for ( node = m_menus.GetFirst(); node; node = node->GetNext(), i++ )
 882     {
 883         if ( label == wxMenuItem::GetLabelFromText(GetLabelTop(i)) )
 884             return node->GetData()->FindItem(item);
 885     }
 886
 887     return wxNOT_FOUND;
 888 }
 889
 890 // ---------------------------------------------------------------------------
 891 // wxMenuBar functions forwarded to wxMenuItem
 892 // ---------------------------------------------------------------------------
 893
 894 void wxMenuBarBase::Enable(int id, bool enable)
 895 {
 896     wxMenuItem *item = FindItem(id);
 897
 898     wxCHECK_RET( item, wxT("attempt to enable an item which doesn't exist") );
 899
 900     item->Enable(enable);
 901 }
 902
 903 void wxMenuBarBase::Check(int id, bool check)
 904 {
 905     wxMenuItem *item = FindItem(id);
 906
 907     wxCHECK_RET( item, wxT("attempt to check an item which doesn't exist") );
 908     wxCHECK_RET( item->IsCheckable(), wxT("attempt to check an uncheckable item") );
 909
 910     item->Check(check);
 911 }
 912
 913 bool wxMenuBarBase::IsChecked(int id) const
 914 {
 915     wxMenuItem *item = FindItem(id);
 916
 917     wxCHECK_MSG( item, FALSE, wxT("wxMenuBar::IsChecked(): no such item") );
 918
 919     return item->IsChecked();
 920 }
 921
 922 bool wxMenuBarBase::IsEnabled(int id) const
 923 {
 924     wxMenuItem *item = FindItem(id);
 925
 926     wxCHECK_MSG( item, FALSE, wxT("wxMenuBar::IsEnabled(): no such item") );
 927
 928     return item->IsEnabled();
 929 }
 930
 931 void wxMenuBarBase::SetLabel(int id, const wxString& label)
 932 {
 933     wxMenuItem *item = FindItem(id);
 934
 935     wxCHECK_RET( item, wxT("wxMenuBar::SetLabel(): no such item") );
 936
 937     item->SetText(label);
 938 }
 939
 940 wxString wxMenuBarBase::GetLabel(int id) const
 941 {
 942     wxMenuItem *item = FindItem(id);
 943
 944     wxCHECK_MSG( item, wxEmptyString,
 945                  wxT("wxMenuBar::GetLabel(): no such item") );
 946
 947     return item->GetText();
 948 }
 949
 950 void wxMenuBarBase::SetHelpString(int id, const wxString& helpString)
 951 {
 952     wxMenuItem *item = FindItem(id);
 953
 954     wxCHECK_RET( item, wxT("wxMenuBar::SetHelpString(): no such item") );
 955
 956     item->SetHelp(helpString);
 957 }
 958
 959 wxString wxMenuBarBase::GetHelpString(int id) const
 960 {
 961     wxMenuItem *item = FindItem(id);
 962
 963     wxCHECK_MSG( item, wxEmptyString,
 964                  wxT("wxMenuBar::GetHelpString(): no such item") );
 965
 966     return item->GetHelp();
 967 }
 968
 969 #endif // wxUSE_MENUS