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(), NULL,
 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, NULL, 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         if ( submenu->IsAttached() )
 389             submenu->Detach();
 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, wxNOT_FOUND if not found.
 437 int wxMenuBase::FindItem(const wxString& text) const
 438 {
 439     wxString label = wxMenuItem::GetLabelFromText(text);
 440     for ( wxMenuItemList::compatibility_iterator 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::compatibility_iterator 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::compatibility_iterator 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 (GetInvokingWindow())
 542     {
 543         // Don't update menus if the parent
 544         // frame is about to get deleted
 545         wxWindow *tlw = wxGetTopLevelParent( GetInvokingWindow() );
 546         if (tlw && wxPendingDelete.Member(tlw))
 547             return;
 548     }
 549
 550     if ( !source && GetInvokingWindow() )
 551         source = GetInvokingWindow()->GetEventHandler();
 552     if ( !source )
 553         source = GetEventHandler();
 554     if ( !source )
 555         source = this;
 556
 557     wxMenuItemList::compatibility_iterator  node = GetMenuItems().GetFirst();
 558     while ( node )
 559     {
 560         wxMenuItem* item = node->GetData();
 561         if ( !item->IsSeparator() )
 562         {
 563             wxWindowID id = item->GetId();
 564             wxUpdateUIEvent event(id);
 565             event.SetEventObject( source );
 566
 567             if ( source->ProcessEvent(event) )
 568             {
 569                 // if anything changed, update the changed attribute
 570                 if (event.GetSetText())
 571                     SetLabel(id, event.GetText());
 572                 if (event.GetSetChecked())
 573                     Check(id, event.GetChecked());
 574                 if (event.GetSetEnabled())
 575                     Enable(id, event.GetEnabled());
 576             }
 577
 578             // recurse to the submenus
 579             if ( item->GetSubMenu() )
 580                 item->GetSubMenu()->UpdateUI(source);
 581         }
 582         //else: item is a separator (which doesn't process update UI events)
 583
 584         node = node->GetNext();
 585     }
 586 }
 587
 588 bool wxMenuBase::SendEvent(int id, int checked)
 589 {
 590     wxCommandEvent event(wxEVT_COMMAND_MENU_SELECTED, id);
 591     event.SetEventObject(this);
 592     event.SetInt(checked);
 593
 594     bool processed = false;
 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 wxMenuBar* wxMenuBase::GetMenuBar() const
 630 {
 631     if(GetParent())
 632         return GetParent()->GetMenuBar();
 633     return m_menuBar;
 634 }
 635
 636 void wxMenuBase::Attach(wxMenuBarBase *menubar)
 637 {
 638     // use Detach() instead!
 639     wxASSERT_MSG( menubar, _T("menu can't be attached to NULL menubar") );
 640
 641     // use IsAttached() to prevent this from happening
 642     wxASSERT_MSG( !m_menuBar, _T("attaching menu twice?") );
 643
 644     m_menuBar = (wxMenuBar *)menubar;
 645 }
 646
 647 void wxMenuBase::Detach()
 648 {
 649     // use IsAttached() to prevent this from happening
 650     wxASSERT_MSG( m_menuBar, _T("detaching unattached menu?") );
 651
 652     m_menuBar = NULL;
 653 }
 654
 655 // ----------------------------------------------------------------------------
 656 // wxMenu functions forwarded to wxMenuItem
 657 // ----------------------------------------------------------------------------
 658
 659 void wxMenuBase::Enable( int id, bool enable )
 660 {
 661     wxMenuItem *item = FindItem(id);
 662
 663     wxCHECK_RET( item, wxT("wxMenu::Enable: no such item") );
 664
 665     item->Enable(enable);
 666 }
 667
 668 bool wxMenuBase::IsEnabled( int id ) const
 669 {
 670     wxMenuItem *item = FindItem(id);
 671
 672     wxCHECK_MSG( item, false, wxT("wxMenu::IsEnabled: no such item") );
 673
 674     return item->IsEnabled();
 675 }
 676
 677 void wxMenuBase::Check( int id, bool enable )
 678 {
 679     wxMenuItem *item = FindItem(id);
 680
 681     wxCHECK_RET( item, wxT("wxMenu::Check: no such item") );
 682
 683     item->Check(enable);
 684 }
 685
 686 bool wxMenuBase::IsChecked( int id ) const
 687 {
 688     wxMenuItem *item = FindItem(id);
 689
 690     wxCHECK_MSG( item, false, wxT("wxMenu::IsChecked: no such item") );
 691
 692     return item->IsChecked();
 693 }
 694
 695 void wxMenuBase::SetLabel( int id, const wxString &label )
 696 {
 697     wxMenuItem *item = FindItem(id);
 698
 699     wxCHECK_RET( item, wxT("wxMenu::SetLabel: no such item") );
 700
 701     item->SetText(label);
 702 }
 703
 704 wxString wxMenuBase::GetLabel( int id ) const
 705 {
 706     wxMenuItem *item = FindItem(id);
 707
 708     wxCHECK_MSG( item, wxT(""), wxT("wxMenu::GetLabel: no such item") );
 709
 710     return item->GetText();
 711 }
 712
 713 void wxMenuBase::SetHelpString( int id, const wxString& helpString )
 714 {
 715     wxMenuItem *item = FindItem(id);
 716
 717     wxCHECK_RET( item, wxT("wxMenu::SetHelpString: no such item") );
 718
 719     item->SetHelp( helpString );
 720 }
 721
 722 wxString wxMenuBase::GetHelpString( int id ) const
 723 {
 724     wxMenuItem *item = FindItem(id);
 725
 726     wxCHECK_MSG( item, wxT(""), wxT("wxMenu::GetHelpString: no such item") );
 727
 728     return item->GetHelp();
 729 }
 730
 731 // ----------------------------------------------------------------------------
 732 // wxMenuBarBase ctor and dtor
 733 // ----------------------------------------------------------------------------
 734
 735 wxMenuBarBase::wxMenuBarBase()
 736 {
 737     // not attached yet
 738     m_menuBarFrame = NULL;
 739 }
 740
 741 wxMenuBarBase::~wxMenuBarBase()
 742 {
 743     WX_CLEAR_LIST(wxMenuList, m_menus);
 744 }
 745
 746 // ----------------------------------------------------------------------------
 747 // wxMenuBar item access: the base class versions manage m_menus list, the
 748 // derived class should reflect the changes in the real menubar
 749 // ----------------------------------------------------------------------------
 750
 751 wxMenu *wxMenuBarBase::GetMenu(size_t pos) const
 752 {
 753     wxMenuList::compatibility_iterator node = m_menus.Item(pos);
 754     wxCHECK_MSG( node, NULL, wxT("bad index in wxMenuBar::GetMenu()") );
 755
 756     return node->GetData();
 757 }
 758
 759 bool wxMenuBarBase::Append(wxMenu *menu, const wxString& WXUNUSED(title))
 760 {
 761     wxCHECK_MSG( menu, false, wxT("can't append NULL menu") );
 762
 763     m_menus.Append(menu);
 764     menu->Attach(this);
 765
 766     return true;
 767 }
 768
 769 bool wxMenuBarBase::Insert(size_t pos, wxMenu *menu,
 770                            const wxString& title)
 771 {
 772     if ( pos == m_menus.GetCount() )
 773     {
 774         return wxMenuBarBase::Append(menu, title);
 775     }
 776     else // not at the end
 777     {
 778         wxCHECK_MSG( menu, false, wxT("can't insert NULL menu") );
 779
 780         wxMenuList::compatibility_iterator node = m_menus.Item(pos);
 781         wxCHECK_MSG( node, false, wxT("bad index in wxMenuBar::Insert()") );
 782
 783         m_menus.Insert(node, menu);
 784         menu->Attach(this);
 785
 786         return true;
 787     }
 788 }
 789
 790 wxMenu *wxMenuBarBase::Replace(size_t pos, wxMenu *menu,
 791                                const wxString& WXUNUSED(title))
 792 {
 793     wxCHECK_MSG( menu, NULL, wxT("can't insert NULL menu") );
 794
 795     wxMenuList::compatibility_iterator node = m_menus.Item(pos);
 796     wxCHECK_MSG( node, NULL, wxT("bad index in wxMenuBar::Replace()") );
 797
 798     wxMenu *menuOld = node->GetData();
 799     node->SetData(menu);
 800
 801     menu->Attach(this);
 802     menuOld->Detach();
 803
 804     return menuOld;
 805 }
 806
 807 wxMenu *wxMenuBarBase::Remove(size_t pos)
 808 {
 809     wxMenuList::compatibility_iterator node = m_menus.Item(pos);
 810     wxCHECK_MSG( node, NULL, wxT("bad index in wxMenuBar::Remove()") );
 811
 812     wxMenu *menu = node->GetData();
 813     m_menus.Erase(node);
 814     menu->Detach();
 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(), i;
 868     wxMenuList::const_iterator it;
 869     for ( i = 0, it = m_menus.begin(); !item && (i < count); i++, it++ )
 870     {
 871         item = (*it)->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::compatibility_iterator 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