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