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_items.DeleteContents(TRUE);
 280
 281     m_menuBar = (wxMenuBar *)NULL;
 282     m_menuParent = (wxMenu *)NULL;
 283
 284     m_invokingWindow = (wxWindow *)NULL;
 285     m_style = style;
 286     m_clientData = (void *)NULL;
 287     m_eventHandler = this;
 288
 289 #if wxUSE_MENU_CALLBACK
 290     m_callback = (wxFunction) NULL;
 291 #endif // wxUSE_MENU_CALLBACK
 292 }
 293
 294 wxMenuBase::~wxMenuBase()
 295 {
 296     // nothing to do, wxMenuItemList dtor will delete the menu items.
 297
 298     // Actually, in GTK, the submenus have to get deleted first.
 299 }
 300
 301 // ----------------------------------------------------------------------------
 302 // wxMenu item adding/removing
 303 // ----------------------------------------------------------------------------
 304
 305 void wxMenuBase::AddSubMenu(wxMenu *submenu)
 306 {
 307     wxCHECK_RET( submenu, _T("can't add a NULL submenu") );
 308
 309     if ( m_menuBar )
 310     {
 311         submenu->Attach(m_menuBar);
 312     }
 313
 314     submenu->SetParent((wxMenu *)this);
 315 }
 316
 317 bool wxMenuBase::DoAppend(wxMenuItem *item)
 318 {
 319     wxCHECK_MSG( item, FALSE, wxT("invalid item in wxMenu::Append()") );
 320
 321     m_items.Append(item);
 322     item->SetMenu((wxMenu*)this);
 323     if ( item->IsSubMenu() )
 324     {
 325         AddSubMenu(item->GetSubMenu());
 326     }
 327
 328     return TRUE;
 329 }
 330
 331 bool wxMenuBase::Insert(size_t pos, wxMenuItem *item)
 332 {
 333     wxCHECK_MSG( item, FALSE, wxT("invalid item in wxMenu::Insert") );
 334
 335     if ( pos == GetMenuItemCount() )
 336     {
 337         return DoAppend(item);
 338     }
 339     else
 340     {
 341         wxCHECK_MSG( pos < GetMenuItemCount(), FALSE,
 342                      wxT("invalid index in wxMenu::Insert") );
 343
 344         return DoInsert(pos, item);
 345     }
 346 }
 347
 348 bool wxMenuBase::DoInsert(size_t pos, wxMenuItem *item)
 349 {
 350     wxCHECK_MSG( item, FALSE, wxT("invalid item in wxMenu::Insert()") );
 351
 352     wxMenuItemList::Node *node = m_items.Item(pos);
 353     wxCHECK_MSG( node, FALSE, wxT("invalid index in wxMenu::Insert()") );
 354
 355     m_items.Insert(node, item);
 356     item->SetMenu((wxMenu*)this);
 357     if ( item->IsSubMenu() )
 358     {
 359         AddSubMenu(item->GetSubMenu());
 360     }
 361
 362     return TRUE;
 363 }
 364
 365 wxMenuItem *wxMenuBase::Remove(wxMenuItem *item)
 366 {
 367     wxCHECK_MSG( item, NULL, wxT("invalid item in wxMenu::Remove") );
 368
 369     return DoRemove(item);
 370 }
 371
 372 wxMenuItem *wxMenuBase::DoRemove(wxMenuItem *item)
 373 {
 374     wxMenuItemList::Node *node = m_items.Find(item);
 375
 376     // if we get here, the item is valid or one of Remove() functions is broken
 377     wxCHECK_MSG( node, NULL, wxT("bug in wxMenu::Remove logic") );
 378
 379     // we detach the item, but we do delete the list node (i.e. don't call
 380     // DetachNode() here!)
 381     node->SetData((wxMenuItem *)NULL);  // to prevent it from deleting the item
 382     m_items.DeleteNode(node);
 383
 384     // item isn't attached to anything any more
 385     item->SetMenu((wxMenu *)NULL);
 386     wxMenu *submenu = item->GetSubMenu();
 387     if ( submenu )
 388     {
 389         submenu->SetParent((wxMenu *)NULL);
 390     }
 391
 392     return item;
 393 }
 394
 395 bool wxMenuBase::Delete(wxMenuItem *item)
 396 {
 397     wxCHECK_MSG( item, FALSE, wxT("invalid item in wxMenu::Delete") );
 398
 399     return DoDelete(item);
 400 }
 401
 402 bool wxMenuBase::DoDelete(wxMenuItem *item)
 403 {
 404     wxMenuItem *item2 = DoRemove(item);
 405     wxCHECK_MSG( item2, FALSE, wxT("failed to delete menu item") );
 406
 407     // don't delete the submenu
 408     item2->SetSubMenu((wxMenu *)NULL);
 409
 410     delete item2;
 411
 412     return TRUE;
 413 }
 414
 415 bool wxMenuBase::Destroy(wxMenuItem *item)
 416 {
 417     wxCHECK_MSG( item, FALSE, wxT("invalid item in wxMenu::Destroy") );
 418
 419     return DoDestroy(item);
 420 }
 421
 422 bool wxMenuBase::DoDestroy(wxMenuItem *item)
 423 {
 424     wxMenuItem *item2 = DoRemove(item);
 425     wxCHECK_MSG( item2, FALSE, wxT("failed to delete menu item") );
 426
 427     delete item2;
 428
 429     return TRUE;
 430 }
 431
 432 // ----------------------------------------------------------------------------
 433 // wxMenu searching for items
 434 // ----------------------------------------------------------------------------
 435
 436 // Finds the item id matching the given string, -1 if not found.
 437 int wxMenuBase::FindItem(const wxString& text) const
 438 {
 439     wxString label = wxMenuItem::GetLabelFromText(text);
 440     for ( wxMenuItemList::Node *node = m_items.GetFirst();
 441           node;
 442           node = node->GetNext() )
 443     {
 444         wxMenuItem *item = node->GetData();
 445         if ( item->IsSubMenu() )
 446         {
 447             int rc = item->GetSubMenu()->FindItem(label);
 448             if ( rc != wxNOT_FOUND )
 449                 return rc;
 450         }
 451
 452         // we execute this code for submenus as well to alllow finding them by
 453         // name just like the ordinary items
 454         if ( !item->IsSeparator() )
 455         {
 456             if ( item->GetLabel() == label )
 457                 return item->GetId();
 458         }
 459     }
 460
 461     return wxNOT_FOUND;
 462 }
 463
 464 // recursive search for item by id
 465 wxMenuItem *wxMenuBase::FindItem(int itemId, wxMenu **itemMenu) const
 466 {
 467     if ( itemMenu )
 468         *itemMenu = NULL;
 469
 470     wxMenuItem *item = NULL;
 471     for ( wxMenuItemList::Node *node = m_items.GetFirst();
 472           node && !item;
 473           node = node->GetNext() )
 474     {
 475         item = node->GetData();
 476
 477         if ( item->GetId() == itemId )
 478         {
 479             if ( itemMenu )
 480                 *itemMenu = (wxMenu *)this;
 481         }
 482         else if ( item->IsSubMenu() )
 483         {
 484             item = item->GetSubMenu()->FindItem(itemId, itemMenu);
 485         }
 486         else
 487         {
 488             // don't exit the loop
 489             item = NULL;
 490         }
 491     }
 492
 493     return item;
 494 }
 495
 496 // non recursive search
 497 wxMenuItem *wxMenuBase::FindChildItem(int id, size_t *ppos) const
 498 {
 499     wxMenuItem *item = (wxMenuItem *)NULL;
 500     wxMenuItemList::Node *node = GetMenuItems().GetFirst();
 501
 502     size_t pos;
 503     for ( pos = 0; node; pos++ )
 504     {
 505         if ( node->GetData()->GetId() == id )
 506         {
 507             item = node->GetData();
 508
 509             break;
 510         }
 511
 512         node = node->GetNext();
 513     }
 514
 515     if ( ppos )
 516     {
 517         *ppos = item ? pos : (size_t)wxNOT_FOUND;
 518     }
 519
 520     return item;
 521 }
 522
 523 // find by position
 524 wxMenuItem* wxMenuBase::FindItemByPosition(size_t position) const
 525 {
 526     wxCHECK_MSG( position < m_items.GetCount(), NULL,
 527                  _T("wxMenu::FindItemByPosition(): invalid menu index") );
 528
 529     return m_items.Item( position )->GetData();
 530 }
 531
 532 // ----------------------------------------------------------------------------
 533 // wxMenu helpers used by derived classes
 534 // ----------------------------------------------------------------------------
 535
 536 // Update a menu and all submenus recursively. source is the object that has
 537 // the update event handlers defined for it. If NULL, the menu or associated
 538 // window will be used.
 539 void wxMenuBase::UpdateUI(wxEvtHandler* source)
 540 {
 541     if ( !source && GetInvokingWindow() )
 542         source = GetInvokingWindow()->GetEventHandler();
 543     if ( !source )
 544         source = GetEventHandler();
 545     if ( !source )
 546         source = this;
 547
 548     wxMenuItemList::Node* node = GetMenuItems().GetFirst();
 549     while ( node )
 550     {
 551         wxMenuItem* item = node->GetData();
 552         if ( !item->IsSeparator() )
 553         {
 554             wxWindowID id = item->GetId();
 555             wxUpdateUIEvent event(id);
 556             event.SetEventObject( source );
 557
 558             if ( source->ProcessEvent(event) )
 559             {
 560                 // if anything changed, update the chanegd attribute
 561                 if (event.GetSetText())
 562                     SetLabel(id, event.GetText());
 563                 if (event.GetSetChecked())
 564                     Check(id, event.GetChecked());
 565                 if (event.GetSetEnabled())
 566                     Enable(id, event.GetEnabled());
 567             }
 568
 569             // recurse to the submenus
 570             if ( item->GetSubMenu() )
 571                 item->GetSubMenu()->UpdateUI(source);
 572         }
 573         //else: item is a separator (which don't process update UI events)
 574
 575         node = node->GetNext();
 576     }
 577 }
 578
 579 bool wxMenuBase::SendEvent(int id, int checked)
 580 {
 581     wxCommandEvent event(wxEVT_COMMAND_MENU_SELECTED, id);
 582     event.SetEventObject(this);
 583     event.SetInt(checked);
 584
 585     bool processed = FALSE;
 586
 587 #if wxUSE_MENU_CALLBACK
 588     // Try a callback
 589     if (m_callback)
 590     {
 591         (void)(*(m_callback))(*this, event);
 592         processed = TRUE;
 593     }
 594 #endif // wxUSE_MENU_CALLBACK
 595
 596     // Try the menu's event handler
 597     if ( !processed )
 598     {
 599         wxEvtHandler *handler = GetEventHandler();
 600         if ( handler )
 601             processed = handler->ProcessEvent(event);
 602     }
 603
 604     // Try the window the menu was popped up from (and up through the
 605     // hierarchy)
 606     if ( !processed )
 607     {
 608         const wxMenuBase *menu = this;
 609         while ( menu )
 610         {
 611             wxWindow *win = menu->GetInvokingWindow();
 612             if ( win )
 613             {
 614                 processed = win->GetEventHandler()->ProcessEvent(event);
 615                 break;
 616             }
 617
 618             menu = menu->GetParent();
 619         }
 620     }
 621
 622     return processed;
 623 }
 624
 625 // ----------------------------------------------------------------------------
 626 // wxMenu attaching/detaching to/from menu bar
 627 // ----------------------------------------------------------------------------
 628
 629 void wxMenuBase::Attach(wxMenuBarBase *menubar)
 630 {
 631     // use Detach() instead!
 632     wxASSERT_MSG( menubar, _T("menu can't be attached to NULL menubar") );
 633
 634     // use IsAttached() to prevent this from happening
 635     wxASSERT_MSG( !m_menuBar, _T("attaching menu twice?") );
 636
 637     m_menuBar = (wxMenuBar *)menubar;
 638 }
 639
 640 void wxMenuBase::Detach()
 641 {
 642     // use IsAttached() to prevent this from happening
 643     wxASSERT_MSG( m_menuBar, _T("detaching unattached menu?") );
 644
 645     m_menuBar = NULL;
 646 }
 647
 648 // ----------------------------------------------------------------------------
 649 // wxMenu functions forwarded to wxMenuItem
 650 // ----------------------------------------------------------------------------
 651
 652 void wxMenuBase::Enable( int id, bool enable )
 653 {
 654     wxMenuItem *item = FindItem(id);
 655
 656     wxCHECK_RET( item, wxT("wxMenu::Enable: no such item") );
 657
 658     item->Enable(enable);
 659 }
 660
 661 bool wxMenuBase::IsEnabled( int id ) const
 662 {
 663     wxMenuItem *item = FindItem(id);
 664
 665     wxCHECK_MSG( item, FALSE, wxT("wxMenu::IsEnabled: no such item") );
 666
 667     return item->IsEnabled();
 668 }
 669
 670 void wxMenuBase::Check( int id, bool enable )
 671 {
 672     wxMenuItem *item = FindItem(id);
 673
 674     wxCHECK_RET( item, wxT("wxMenu::Check: no such item") );
 675
 676     item->Check(enable);
 677 }
 678
 679 bool wxMenuBase::IsChecked( int id ) const
 680 {
 681     wxMenuItem *item = FindItem(id);
 682
 683     wxCHECK_MSG( item, FALSE, wxT("wxMenu::IsChecked: no such item") );
 684
 685     return item->IsChecked();
 686 }
 687
 688 void wxMenuBase::SetLabel( int id, const wxString &label )
 689 {
 690     wxMenuItem *item = FindItem(id);
 691
 692     wxCHECK_RET( item, wxT("wxMenu::SetLabel: no such item") );
 693
 694     item->SetText(label);
 695 }
 696
 697 wxString wxMenuBase::GetLabel( int id ) const
 698 {
 699     wxMenuItem *item = FindItem(id);
 700
 701     wxCHECK_MSG( item, wxT(""), wxT("wxMenu::GetLabel: no such item") );
 702
 703     return item->GetText();
 704 }
 705
 706 void wxMenuBase::SetHelpString( int id, const wxString& helpString )
 707 {
 708     wxMenuItem *item = FindItem(id);
 709
 710     wxCHECK_RET( item, wxT("wxMenu::SetHelpString: no such item") );
 711
 712     item->SetHelp( helpString );
 713 }
 714
 715 wxString wxMenuBase::GetHelpString( int id ) const
 716 {
 717     wxMenuItem *item = FindItem(id);
 718
 719     wxCHECK_MSG( item, wxT(""), wxT("wxMenu::GetHelpString: no such item") );
 720
 721     return item->GetHelp();
 722 }
 723
 724 // ----------------------------------------------------------------------------
 725 // wxMenuBarBase ctor and dtor
 726 // ----------------------------------------------------------------------------
 727
 728 wxMenuBarBase::wxMenuBarBase()
 729 {
 730     // we own the menus when we get them
 731     m_menus.DeleteContents(TRUE);
 732
 733     // not attached yet
 734     m_menuBarFrame = NULL;
 735 }
 736
 737 wxMenuBarBase::~wxMenuBarBase()
 738 {
 739     // nothing to do, the list will delete the menus because of the call to
 740     // DeleteContents() above
 741 }
 742
 743 // ----------------------------------------------------------------------------
 744 // wxMenuBar item access: the base class versions manage m_menus list, the
 745 // derived class should reflect the changes in the real menubar
 746 // ----------------------------------------------------------------------------
 747
 748 wxMenu *wxMenuBarBase::GetMenu(size_t pos) const
 749 {
 750     wxMenuList::Node *node = m_menus.Item(pos);
 751     wxCHECK_MSG( node, NULL, wxT("bad index in wxMenuBar::GetMenu()") );
 752
 753     return node->GetData();
 754 }
 755
 756 bool wxMenuBarBase::Append(wxMenu *menu, const wxString& WXUNUSED(title))
 757 {
 758     wxCHECK_MSG( menu, FALSE, wxT("can't append NULL menu") );
 759
 760     m_menus.Append(menu);
 761     menu->Attach(this);
 762
 763     return TRUE;
 764 }
 765
 766 bool wxMenuBarBase::Insert(size_t pos, wxMenu *menu,
 767                            const wxString& title)
 768 {
 769     if ( pos == m_menus.GetCount() )
 770     {
 771         return wxMenuBarBase::Append(menu, title);
 772     }
 773     else // not at the end
 774     {
 775         wxCHECK_MSG( menu, FALSE, wxT("can't insert NULL menu") );
 776
 777         wxMenuList::Node *node = m_menus.Item(pos);
 778         wxCHECK_MSG( node, FALSE, wxT("bad index in wxMenuBar::Insert()") );
 779
 780         m_menus.Insert(node, menu);
 781         menu->Attach(this);
 782
 783         return TRUE;
 784     }
 785 }
 786
 787 wxMenu *wxMenuBarBase::Replace(size_t pos, wxMenu *menu,
 788                                const wxString& WXUNUSED(title))
 789 {
 790     wxCHECK_MSG( menu, NULL, wxT("can't insert NULL menu") );
 791
 792     wxMenuList::Node *node = m_menus.Item(pos);
 793     wxCHECK_MSG( node, NULL, wxT("bad index in wxMenuBar::Replace()") );
 794
 795     wxMenu *menuOld = node->GetData();
 796     node->SetData(menu);
 797
 798     menu->Attach(this);
 799     menuOld->Detach();
 800
 801     return menuOld;
 802 }
 803
 804 wxMenu *wxMenuBarBase::Remove(size_t pos)
 805 {
 806     wxMenuList::Node *node = m_menus.Item(pos);
 807     wxCHECK_MSG( node, NULL, wxT("bad index in wxMenuBar::Remove()") );
 808
 809     node = m_menus.DetachNode(node);
 810     wxCHECK( node, NULL );  // unexpected
 811     wxMenu *menu = node->GetData();
 812     menu->Detach();
 813
 814     delete node;
 815
 816     return menu;
 817 }
 818
 819 int wxMenuBarBase::FindMenu(const wxString& title) const
 820 {
 821     wxString label = wxMenuItem::GetLabelFromText(title);
 822
 823     size_t count = GetMenuCount();
 824     for ( size_t i = 0; i < count; i++ )
 825     {
 826         wxString title2 = GetLabelTop(i);
 827         if ( (title2 == title) ||
 828              (wxMenuItem::GetLabelFromText(title2) == label) )
 829         {
 830             // found
 831             return (int)i;
 832         }
 833     }
 834
 835     return wxNOT_FOUND;
 836
 837 }
 838
 839 // ----------------------------------------------------------------------------
 840 // wxMenuBar attaching/detaching to/from the frame
 841 // ----------------------------------------------------------------------------
 842
 843 void wxMenuBarBase::Attach(wxFrame *frame)
 844 {
 845     wxASSERT_MSG( !IsAttached(), wxT("menubar already attached!") );
 846
 847     m_menuBarFrame = frame;
 848 }
 849
 850 void wxMenuBarBase::Detach()
 851 {
 852     wxASSERT_MSG( IsAttached(), wxT("detaching unattached menubar") );
 853
 854     m_menuBarFrame = NULL;
 855 }
 856
 857 // ----------------------------------------------------------------------------
 858 // wxMenuBar searching for items
 859 // ----------------------------------------------------------------------------
 860
 861 wxMenuItem *wxMenuBarBase::FindItem(int id, wxMenu **menu) const
 862 {
 863     if ( menu )
 864         *menu = NULL;
 865
 866     wxMenuItem *item = NULL;
 867     size_t count = GetMenuCount();
 868     for ( size_t i = 0; !item && (i < count); i++ )
 869     {
 870         item = m_menus[i]->FindItem(id, menu);
 871     }
 872
 873     return item;
 874 }
 875
 876 int wxMenuBarBase::FindMenuItem(const wxString& menu, const wxString& item) const
 877 {
 878     wxString label = wxMenuItem::GetLabelFromText(menu);
 879
 880     int i = 0;
 881     wxMenuList::Node *node;
 882     for ( node = m_menus.GetFirst(); node; node = node->GetNext(), i++ )
 883     {
 884         if ( label == wxMenuItem::GetLabelFromText(GetLabelTop(i)) )
 885             return node->GetData()->FindItem(item);
 886     }
 887
 888     return wxNOT_FOUND;
 889 }
 890
 891 // ---------------------------------------------------------------------------
 892 // wxMenuBar functions forwarded to wxMenuItem
 893 // ---------------------------------------------------------------------------
 894
 895 void wxMenuBarBase::Enable(int id, bool enable)
 896 {
 897     wxMenuItem *item = FindItem(id);
 898
 899     wxCHECK_RET( item, wxT("attempt to enable an item which doesn't exist") );
 900
 901     item->Enable(enable);
 902 }
 903
 904 void wxMenuBarBase::Check(int id, bool check)
 905 {
 906     wxMenuItem *item = FindItem(id);
 907
 908     wxCHECK_RET( item, wxT("attempt to check an item which doesn't exist") );
 909     wxCHECK_RET( item->IsCheckable(), wxT("attempt to check an uncheckable item") );
 910
 911     item->Check(check);
 912 }
 913
 914 bool wxMenuBarBase::IsChecked(int id) const
 915 {
 916     wxMenuItem *item = FindItem(id);
 917
 918     wxCHECK_MSG( item, FALSE, wxT("wxMenuBar::IsChecked(): no such item") );
 919
 920     return item->IsChecked();
 921 }
 922
 923 bool wxMenuBarBase::IsEnabled(int id) const
 924 {
 925     wxMenuItem *item = FindItem(id);
 926
 927     wxCHECK_MSG( item, FALSE, wxT("wxMenuBar::IsEnabled(): no such item") );
 928
 929     return item->IsEnabled();
 930 }
 931
 932 void wxMenuBarBase::SetLabel(int id, const wxString& label)
 933 {
 934     wxMenuItem *item = FindItem(id);
 935
 936     wxCHECK_RET( item, wxT("wxMenuBar::SetLabel(): no such item") );
 937
 938     item->SetText(label);
 939 }
 940
 941 wxString wxMenuBarBase::GetLabel(int id) const
 942 {
 943     wxMenuItem *item = FindItem(id);
 944
 945     wxCHECK_MSG( item, wxEmptyString,
 946                  wxT("wxMenuBar::GetLabel(): no such item") );
 947
 948     return item->GetText();
 949 }
 950
 951 void wxMenuBarBase::SetHelpString(int id, const wxString& helpString)
 952 {
 953     wxMenuItem *item = FindItem(id);
 954
 955     wxCHECK_RET( item, wxT("wxMenuBar::SetHelpString(): no such item") );
 956
 957     item->SetHelp(helpString);
 958 }
 959
 960 wxString wxMenuBarBase::GetHelpString(int id) const
 961 {
 962     wxMenuItem *item = FindItem(id);
 963
 964     wxCHECK_MSG( item, wxEmptyString,
 965                  wxT("wxMenuBar::GetHelpString(): no such item") );
 966
 967     return item->GetHelp();
 968 }
 969
 970 #endif // wxUSE_MENUS