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     wxASSERT ( position > -1 && position < m_items.GetCount() );
 527     if ( position > -1 && position < m_items.GetCount() )
 528         return m_items.Item( position )->GetData();
 529     else
 530         return NULL;
 531 }
 532
 533 // ----------------------------------------------------------------------------
 534 // wxMenu helpers used by derived classes
 535 // ----------------------------------------------------------------------------
 536
 537 // Update a menu and all submenus recursively. source is the object that has
 538 // the update event handlers defined for it. If NULL, the menu or associated
 539 // window will be used.
 540 void wxMenuBase::UpdateUI(wxEvtHandler* source)
 541 {
 542     if ( !source && GetInvokingWindow() )
 543         source = GetInvokingWindow()->GetEventHandler();
 544     if ( !source )
 545         source = GetEventHandler();
 546     if ( !source )
 547         source = this;
 548
 549     wxMenuItemList::Node* node = GetMenuItems().GetFirst();
 550     while ( node )
 551     {
 552         wxMenuItem* item = node->GetData();
 553         if ( !item->IsSeparator() )
 554         {
 555             wxWindowID id = item->GetId();
 556             wxUpdateUIEvent event(id);
 557             event.SetEventObject( source );
 558
 559             if ( source->ProcessEvent(event) )
 560             {
 561                 // if anything changed, update the chanegd attribute
 562                 if (event.GetSetText())
 563                     SetLabel(id, event.GetText());
 564                 if (event.GetSetChecked())
 565                     Check(id, event.GetChecked());
 566                 if (event.GetSetEnabled())
 567                     Enable(id, event.GetEnabled());
 568             }
 569
 570             // recurse to the submenus
 571             if ( item->GetSubMenu() )
 572                 item->GetSubMenu()->UpdateUI(source);
 573         }
 574         //else: item is a separator (which don't process update UI events)
 575
 576         node = node->GetNext();
 577     }
 578 }
 579
 580 bool wxMenuBase::SendEvent(int id, int checked)
 581 {
 582     wxCommandEvent event(wxEVT_COMMAND_MENU_SELECTED, id);
 583     event.SetEventObject(this);
 584     event.SetInt(checked);
 585
 586     bool processed = FALSE;
 587
 588 #if wxUSE_MENU_CALLBACK
 589     // Try a callback
 590     if (m_callback)
 591     {
 592         (void)(*(m_callback))(*this, event);
 593         processed = TRUE;
 594     }
 595 #endif // wxUSE_MENU_CALLBACK
 596
 597     // Try the menu's event handler
 598     if ( !processed )
 599     {
 600         wxEvtHandler *handler = GetEventHandler();
 601         if ( handler )
 602             processed = handler->ProcessEvent(event);
 603     }
 604
 605     // Try the window the menu was popped up from (and up through the
 606     // hierarchy)
 607     if ( !processed )
 608     {
 609         const wxMenuBase *menu = this;
 610         while ( menu )
 611         {
 612             wxWindow *win = menu->GetInvokingWindow();
 613             if ( win )
 614             {
 615                 processed = win->GetEventHandler()->ProcessEvent(event);
 616                 break;
 617             }
 618
 619             menu = menu->GetParent();
 620         }
 621     }
 622
 623     return processed;
 624 }
 625
 626 // ----------------------------------------------------------------------------
 627 // wxMenu attaching/detaching to/from menu bar
 628 // ----------------------------------------------------------------------------
 629
 630 void wxMenuBase::Attach(wxMenuBarBase *menubar)
 631 {
 632     // use Detach() instead!
 633     wxASSERT_MSG( menubar, _T("menu can't be attached to NULL menubar") );
 634
 635     // use IsAttached() to prevent this from happening
 636     wxASSERT_MSG( !m_menuBar, _T("attaching menu twice?") );
 637
 638     m_menuBar = (wxMenuBar *)menubar;
 639 }
 640
 641 void wxMenuBase::Detach()
 642 {
 643     // use IsAttached() to prevent this from happening
 644     wxASSERT_MSG( m_menuBar, _T("detaching unattached menu?") );
 645
 646     m_menuBar = NULL;
 647 }
 648
 649 // ----------------------------------------------------------------------------
 650 // wxMenu functions forwarded to wxMenuItem
 651 // ----------------------------------------------------------------------------
 652
 653 void wxMenuBase::Enable( int id, bool enable )
 654 {
 655     wxMenuItem *item = FindItem(id);
 656
 657     wxCHECK_RET( item, wxT("wxMenu::Enable: no such item") );
 658
 659     item->Enable(enable);
 660 }
 661
 662 bool wxMenuBase::IsEnabled( int id ) const
 663 {
 664     wxMenuItem *item = FindItem(id);
 665
 666     wxCHECK_MSG( item, FALSE, wxT("wxMenu::IsEnabled: no such item") );
 667
 668     return item->IsEnabled();
 669 }
 670
 671 void wxMenuBase::Check( int id, bool enable )
 672 {
 673     wxMenuItem *item = FindItem(id);
 674
 675     wxCHECK_RET( item, wxT("wxMenu::Check: no such item") );
 676
 677     item->Check(enable);
 678 }
 679
 680 bool wxMenuBase::IsChecked( int id ) const
 681 {
 682     wxMenuItem *item = FindItem(id);
 683
 684     wxCHECK_MSG( item, FALSE, wxT("wxMenu::IsChecked: no such item") );
 685
 686     return item->IsChecked();
 687 }
 688
 689 void wxMenuBase::SetLabel( int id, const wxString &label )
 690 {
 691     wxMenuItem *item = FindItem(id);
 692
 693     wxCHECK_RET( item, wxT("wxMenu::SetLabel: no such item") );
 694
 695     item->SetText(label);
 696 }
 697
 698 wxString wxMenuBase::GetLabel( int id ) const
 699 {
 700     wxMenuItem *item = FindItem(id);
 701
 702     wxCHECK_MSG( item, wxT(""), wxT("wxMenu::GetLabel: no such item") );
 703
 704     return item->GetText();
 705 }
 706
 707 void wxMenuBase::SetHelpString( int id, const wxString& helpString )
 708 {
 709     wxMenuItem *item = FindItem(id);
 710
 711     wxCHECK_RET( item, wxT("wxMenu::SetHelpString: no such item") );
 712
 713     item->SetHelp( helpString );
 714 }
 715
 716 wxString wxMenuBase::GetHelpString( int id ) const
 717 {
 718     wxMenuItem *item = FindItem(id);
 719
 720     wxCHECK_MSG( item, wxT(""), wxT("wxMenu::GetHelpString: no such item") );
 721
 722     return item->GetHelp();
 723 }
 724
 725 // ----------------------------------------------------------------------------
 726 // wxMenuBarBase ctor and dtor
 727 // ----------------------------------------------------------------------------
 728
 729 wxMenuBarBase::wxMenuBarBase()
 730 {
 731     // we own the menus when we get them
 732     m_menus.DeleteContents(TRUE);
 733
 734     // not attached yet
 735     m_menuBarFrame = NULL;
 736 }
 737
 738 wxMenuBarBase::~wxMenuBarBase()
 739 {
 740     // nothing to do, the list will delete the menus because of the call to
 741     // DeleteContents() above
 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::Node *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::Node *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::Node *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::Node *node = m_menus.Item(pos);
 808     wxCHECK_MSG( node, NULL, wxT("bad index in wxMenuBar::Remove()") );
 809
 810     node = m_menus.DetachNode(node);
 811     wxCHECK( node, NULL );  // unexpected
 812     wxMenu *menu = node->GetData();
 813     menu->Detach();
 814
 815     delete node;
 816
 817     return menu;
 818 }
 819
 820 int wxMenuBarBase::FindMenu(const wxString& title) const
 821 {
 822     wxString label = wxMenuItem::GetLabelFromText(title);
 823
 824     size_t count = GetMenuCount();
 825     for ( size_t i = 0; i < count; i++ )
 826     {
 827         wxString title2 = GetLabelTop(i);
 828         if ( (title2 == title) ||
 829              (wxMenuItem::GetLabelFromText(title2) == label) )
 830         {
 831             // found
 832             return (int)i;
 833         }
 834     }
 835
 836     return wxNOT_FOUND;
 837
 838 }
 839
 840 // ----------------------------------------------------------------------------
 841 // wxMenuBar attaching/detaching to/from the frame
 842 // ----------------------------------------------------------------------------
 843
 844 void wxMenuBarBase::Attach(wxFrame *frame)
 845 {
 846     wxASSERT_MSG( !IsAttached(), wxT("menubar already attached!") );
 847
 848     m_menuBarFrame = frame;
 849 }
 850
 851 void wxMenuBarBase::Detach()
 852 {
 853     wxASSERT_MSG( IsAttached(), wxT("detaching unattached menubar") );
 854
 855     m_menuBarFrame = NULL;
 856 }
 857
 858 // ----------------------------------------------------------------------------
 859 // wxMenuBar searching for items
 860 // ----------------------------------------------------------------------------
 861
 862 wxMenuItem *wxMenuBarBase::FindItem(int id, wxMenu **menu) const
 863 {
 864     if ( menu )
 865         *menu = NULL;
 866
 867     wxMenuItem *item = NULL;
 868     size_t count = GetMenuCount();
 869     for ( size_t i = 0; !item && (i < count); i++ )
 870     {
 871         item = m_menus[i]->FindItem(id, menu);
 872     }
 873
 874     return item;
 875 }
 876
 877 int wxMenuBarBase::FindMenuItem(const wxString& menu, const wxString& item) const
 878 {
 879     wxString label = wxMenuItem::GetLabelFromText(menu);
 880
 881     int i = 0;
 882     wxMenuList::Node *node;
 883     for ( node = m_menus.GetFirst(); node; node = node->GetNext(), i++ )
 884     {
 885         if ( label == wxMenuItem::GetLabelFromText(GetLabelTop(i)) )
 886             return node->GetData()->FindItem(item);
 887     }
 888
 889     return wxNOT_FOUND;
 890 }
 891
 892 // ---------------------------------------------------------------------------
 893 // wxMenuBar functions forwarded to wxMenuItem
 894 // ---------------------------------------------------------------------------
 895
 896 void wxMenuBarBase::Enable(int id, bool enable)
 897 {
 898     wxMenuItem *item = FindItem(id);
 899
 900     wxCHECK_RET( item, wxT("attempt to enable an item which doesn't exist") );
 901
 902     item->Enable(enable);
 903 }
 904
 905 void wxMenuBarBase::Check(int id, bool check)
 906 {
 907     wxMenuItem *item = FindItem(id);
 908
 909     wxCHECK_RET( item, wxT("attempt to check an item which doesn't exist") );
 910     wxCHECK_RET( item->IsCheckable(), wxT("attempt to check an uncheckable item") );
 911
 912     item->Check(check);
 913 }
 914
 915 bool wxMenuBarBase::IsChecked(int id) const
 916 {
 917     wxMenuItem *item = FindItem(id);
 918
 919     wxCHECK_MSG( item, FALSE, wxT("wxMenuBar::IsChecked(): no such item") );
 920
 921     return item->IsChecked();
 922 }
 923
 924 bool wxMenuBarBase::IsEnabled(int id) const
 925 {
 926     wxMenuItem *item = FindItem(id);
 927
 928     wxCHECK_MSG( item, FALSE, wxT("wxMenuBar::IsEnabled(): no such item") );
 929
 930     return item->IsEnabled();
 931 }
 932
 933 void wxMenuBarBase::SetLabel(int id, const wxString& label)
 934 {
 935     wxMenuItem *item = FindItem(id);
 936
 937     wxCHECK_RET( item, wxT("wxMenuBar::SetLabel(): no such item") );
 938
 939     item->SetText(label);
 940 }
 941
 942 wxString wxMenuBarBase::GetLabel(int id) const
 943 {
 944     wxMenuItem *item = FindItem(id);
 945
 946     wxCHECK_MSG( item, wxEmptyString,
 947                  wxT("wxMenuBar::GetLabel(): no such item") );
 948
 949     return item->GetText();
 950 }
 951
 952 void wxMenuBarBase::SetHelpString(int id, const wxString& helpString)
 953 {
 954     wxMenuItem *item = FindItem(id);
 955
 956     wxCHECK_RET( item, wxT("wxMenuBar::SetHelpString(): no such item") );
 957
 958     item->SetHelp(helpString);
 959 }
 960
 961 wxString wxMenuBarBase::GetHelpString(int id) const
 962 {
 963     wxMenuItem *item = FindItem(id);
 964
 965     wxCHECK_MSG( item, wxEmptyString,
 966                  wxT("wxMenuBar::GetHelpString(): no such item") );
 967
 968     return item->GetHelp();
 969 }
 970
 971 #endif // wxUSE_MENUS