src/msw/menu.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        menu.cpp
   3 // Purpose:     wxMenu, wxMenuBar, wxMenuItem
   4 // Author:      Julian Smart
   5 // Modified by: Vadim Zeitlin
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ===========================================================================
  13 // declarations
  14 // ===========================================================================
  15
  16 // ---------------------------------------------------------------------------
  17 // headers
  18 // ---------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "menu.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 #ifndef WX_PRECOMP
  34     #include "wx/frame.h"
  35     #include "wx/menu.h"
  36     #include "wx/utils.h"
  37     #include "wx/intl.h"
  38     #include "wx/log.h"
  39 #endif
  40
  41 #if wxUSE_OWNER_DRAWN
  42     #include "wx/ownerdrw.h"
  43 #endif
  44
  45 #include "wx/msw/private.h"
  46
  47 // other standard headers
  48 #include <string.h>
  49
  50 // ----------------------------------------------------------------------------
  51 // global variables
  52 // ----------------------------------------------------------------------------
  53
  54 extern wxMenu *wxCurrentPopupMenu;
  55
  56 // ----------------------------------------------------------------------------
  57 // constants
  58 // ----------------------------------------------------------------------------
  59
  60 // the (popup) menu title has this special id
  61 static const int idMenuTitle = -2;
  62
  63 // ----------------------------------------------------------------------------
  64 // private functions
  65 // ----------------------------------------------------------------------------
  66
  67 // make the given menu item default
  68 static void SetDefaultMenuItem(HMENU hmenu, UINT id)
  69 {
  70 #ifndef __WXWINCE__
  71     MENUITEMINFO mii;
  72     wxZeroMemory(mii);
  73     mii.cbSize = sizeof(MENUITEMINFO);
  74     mii.fMask = MIIM_STATE;
  75     mii.fState = MFS_DEFAULT;
  76
  77     if ( !::SetMenuItemInfo(hmenu, id, FALSE, &mii) )
  78     {
  79         wxLogLastError(wxT("SetMenuItemInfo"));
  80     }
  81 #endif
  82 }
  83
  84 #ifdef __WXWINCE__
  85 UINT GetMenuState(HMENU hMenu, UINT id, UINT flags)
  86 {
  87     MENUITEMINFO info;
  88     wxZeroMemory(info);
  89     info.cbSize = sizeof(info);
  90     info.fMask = MIIM_STATE;
  91     if ( !GetMenuItemInfo(hMenu, id, flags & MF_BYCOMMAND ? FALSE : TRUE, & info) )
  92         wxLogLastError(wxT("GetMenuItemInfo"));
  93     return info.fState;
  94 }
  95 #endif
  96
  97 // ============================================================================
  98 // implementation
  99 // ============================================================================
 100
 101 IMPLEMENT_DYNAMIC_CLASS(wxMenu, wxEvtHandler)
 102 IMPLEMENT_DYNAMIC_CLASS(wxMenuBar, wxWindow)
 103
 104 // ---------------------------------------------------------------------------
 105 // wxMenu construction, adding and removing menu items
 106 // ---------------------------------------------------------------------------
 107
 108 // Construct a menu with optional title (then use append)
 109 void wxMenu::Init()
 110 {
 111     m_doBreak = FALSE;
 112     m_startRadioGroup = -1;
 113
 114     // create the menu
 115     m_hMenu = (WXHMENU)CreatePopupMenu();
 116     if ( !m_hMenu )
 117     {
 118         wxLogLastError(wxT("CreatePopupMenu"));
 119     }
 120
 121     // if we have a title, insert it in the beginning of the menu
 122     if ( !!m_title )
 123     {
 124         Append(idMenuTitle, m_title);
 125         AppendSeparator();
 126     }
 127 }
 128
 129 // The wxWindow destructor will take care of deleting the submenus.
 130 wxMenu::~wxMenu()
 131 {
 132     // we should free Windows resources only if Windows doesn't do it for us
 133     // which happens if we're attached to a menubar or a submenu of another
 134     // menu
 135     if ( !IsAttached() && !GetParent() )
 136     {
 137         if ( !::DestroyMenu(GetHmenu()) )
 138         {
 139             wxLogLastError(wxT("DestroyMenu"));
 140         }
 141     }
 142
 143 #if wxUSE_ACCEL
 144     // delete accels
 145     WX_CLEAR_ARRAY(m_accels);
 146 #endif // wxUSE_ACCEL
 147 }
 148
 149 void wxMenu::Break()
 150 {
 151     // this will take effect during the next call to Append()
 152     m_doBreak = TRUE;
 153 }
 154
 155 void wxMenu::Attach(wxMenuBarBase *menubar)
 156 {
 157     wxMenuBase::Attach(menubar);
 158
 159     EndRadioGroup();
 160 }
 161
 162 #if wxUSE_ACCEL
 163
 164 int wxMenu::FindAccel(int id) const
 165 {
 166     size_t n, count = m_accels.GetCount();
 167     for ( n = 0; n < count; n++ )
 168     {
 169         if ( m_accels[n]->m_command == id )
 170             return n;
 171     }
 172
 173     return wxNOT_FOUND;
 174 }
 175
 176 void wxMenu::UpdateAccel(wxMenuItem *item)
 177 {
 178     if ( item->IsSubMenu() )
 179     {
 180         wxMenu *submenu = item->GetSubMenu();
 181         wxMenuItemList::compatibility_iterator node = submenu->GetMenuItems().GetFirst();
 182         while ( node )
 183         {
 184             UpdateAccel(node->GetData());
 185
 186             node = node->GetNext();
 187         }
 188     }
 189     else if ( !item->IsSeparator() )
 190     {
 191         // find the (new) accel for this item
 192         wxAcceleratorEntry *accel = wxGetAccelFromString(item->GetText());
 193         if ( accel )
 194             accel->m_command = item->GetId();
 195
 196         // find the old one
 197         int n = FindAccel(item->GetId());
 198         if ( n == wxNOT_FOUND )
 199         {
 200             // no old, add new if any
 201             if ( accel )
 202                 m_accels.Add(accel);
 203             else
 204                 return;     // skipping RebuildAccelTable() below
 205         }
 206         else
 207         {
 208             // replace old with new or just remove the old one if no new
 209             delete m_accels[n];
 210             if ( accel )
 211                 m_accels[n] = accel;
 212             else
 213                 m_accels.RemoveAt(n);
 214         }
 215
 216         if ( IsAttached() )
 217         {
 218             m_menuBar->RebuildAccelTable();
 219         }
 220     }
 221     //else: it is a separator, they can't have accels, nothing to do
 222 }
 223
 224 #endif // wxUSE_ACCEL
 225
 226 // append a new item or submenu to the menu
 227 bool wxMenu::DoInsertOrAppend(wxMenuItem *pItem, size_t pos)
 228 {
 229 #if wxUSE_ACCEL
 230     UpdateAccel(pItem);
 231 #endif // wxUSE_ACCEL
 232
 233     UINT flags = 0;
 234
 235     // if "Break" has just been called, insert a menu break before this item
 236     // (and don't forget to reset the flag)
 237     if ( m_doBreak ) {
 238         flags |= MF_MENUBREAK;
 239         m_doBreak = FALSE;
 240     }
 241
 242     if ( pItem->IsSeparator() ) {
 243         flags |= MF_SEPARATOR;
 244     }
 245
 246     // id is the numeric id for normal menu items and HMENU for submenus as
 247     // required by ::AppendMenu() API
 248     UINT id;
 249     wxMenu *submenu = pItem->GetSubMenu();
 250     if ( submenu != NULL ) {
 251         wxASSERT_MSG( submenu->GetHMenu(), wxT("invalid submenu") );
 252
 253         submenu->SetParent(this);
 254
 255         id = (UINT)submenu->GetHMenu();
 256
 257         flags |= MF_POPUP;
 258     }
 259     else {
 260         id = pItem->GetId();
 261     }
 262
 263     LPCTSTR pData;
 264
 265 #if wxUSE_OWNER_DRAWN
 266     if ( pItem->IsOwnerDrawn() ) {  // want to get {Measure|Draw}Item messages?
 267         // item draws itself, pass pointer to it in data parameter
 268         flags |= MF_OWNERDRAW;
 269         pData = (LPCTSTR)pItem;
 270     }
 271     else
 272 #endif
 273     {
 274         // menu is just a normal string (passed in data parameter)
 275         flags |= MF_STRING;
 276
 277         pData = (wxChar*)pItem->GetText().c_str();
 278     }
 279
 280     BOOL ok;
 281     if ( pos == (size_t)-1 )
 282     {
 283         ok = ::AppendMenu(GetHmenu(), flags, id, pData);
 284     }
 285     else
 286     {
 287         ok = ::InsertMenu(GetHmenu(), pos, flags | MF_BYPOSITION, id, pData);
 288     }
 289
 290     if ( !ok )
 291     {
 292         wxLogLastError(wxT("Insert or AppendMenu"));
 293
 294         return FALSE;
 295     }
 296
 297     // if we just appended the title, highlight it
 298 #ifdef __WIN32__
 299     if ( (int)id == idMenuTitle )
 300     {
 301         // visually select the menu title
 302         SetDefaultMenuItem(GetHmenu(), id);
 303     }
 304 #endif // __WIN32__
 305
 306     // if we're already attached to the menubar, we must update it
 307     if ( IsAttached() && m_menuBar->IsAttached() )
 308     {
 309         m_menuBar->Refresh();
 310     }
 311
 312     return TRUE;
 313 }
 314
 315 void wxMenu::EndRadioGroup()
 316 {
 317     // we're not inside a radio group any longer
 318     m_startRadioGroup = -1;
 319 }
 320
 321 bool wxMenu::DoAppend(wxMenuItem *item)
 322 {
 323     wxCHECK_MSG( item, FALSE, _T("NULL item in wxMenu::DoAppend") );
 324
 325     bool check = FALSE;
 326
 327     if ( item->GetKind() == wxITEM_RADIO )
 328     {
 329         int count = GetMenuItemCount();
 330
 331         if ( m_startRadioGroup == -1 )
 332         {
 333             // start a new radio group
 334             m_startRadioGroup = count;
 335
 336             // for now it has just one element
 337             item->SetAsRadioGroupStart();
 338             item->SetRadioGroupEnd(m_startRadioGroup);
 339
 340             // ensure that we have a checked item in the radio group
 341             check = TRUE;
 342         }
 343         else // extend the current radio group
 344         {
 345             // we need to update its end item
 346             item->SetRadioGroupStart(m_startRadioGroup);
 347             wxMenuItemList::compatibility_iterator node = GetMenuItems().Item(m_startRadioGroup);
 348
 349             if ( node )
 350             {
 351                 node->GetData()->SetRadioGroupEnd(count);
 352             }
 353             else
 354             {
 355                 wxFAIL_MSG( _T("where is the radio group start item?") );
 356             }
 357         }
 358     }
 359     else // not a radio item
 360     {
 361         EndRadioGroup();
 362     }
 363
 364     if ( !wxMenuBase::DoAppend(item) || !DoInsertOrAppend(item) )
 365     {
 366         return FALSE;
 367     }
 368
 369     if ( check )
 370     {
 371         // check the item initially
 372         item->Check(TRUE);
 373     }
 374
 375     return TRUE;
 376 }
 377
 378 bool wxMenu::DoInsert(size_t pos, wxMenuItem *item)
 379 {
 380     return wxMenuBase::DoInsert(pos, item) && DoInsertOrAppend(item, pos);
 381 }
 382
 383 wxMenuItem *wxMenu::DoRemove(wxMenuItem *item)
 384 {
 385     // we need to find the items position in the child list
 386     size_t pos;
 387     wxMenuItemList::compatibility_iterator node = GetMenuItems().GetFirst();
 388     for ( pos = 0; node; pos++ )
 389     {
 390         if ( node->GetData() == item )
 391             break;
 392
 393         node = node->GetNext();
 394     }
 395
 396     // DoRemove() (unlike Remove) can only be called for existing item!
 397     wxCHECK_MSG( node, NULL, wxT("bug in wxMenu::Remove logic") );
 398
 399 #if wxUSE_ACCEL
 400     // remove the corresponding accel from the accel table
 401     int n = FindAccel(item->GetId());
 402     if ( n != wxNOT_FOUND )
 403     {
 404         delete m_accels[n];
 405
 406         m_accels.RemoveAt(n);
 407     }
 408     //else: this item doesn't have an accel, nothing to do
 409 #endif // wxUSE_ACCEL
 410
 411     // remove the item from the menu
 412     if ( !::RemoveMenu(GetHmenu(), (UINT)pos, MF_BYPOSITION) )
 413     {
 414         wxLogLastError(wxT("RemoveMenu"));
 415     }
 416
 417     if ( IsAttached() && m_menuBar->IsAttached() )
 418     {
 419         // otherwise, the chane won't be visible
 420         m_menuBar->Refresh();
 421     }
 422
 423     // and from internal data structures
 424     return wxMenuBase::DoRemove(item);
 425 }
 426
 427 // ---------------------------------------------------------------------------
 428 // accelerator helpers
 429 // ---------------------------------------------------------------------------
 430
 431 #if wxUSE_ACCEL
 432
 433 // create the wxAcceleratorEntries for our accels and put them into provided
 434 // array - return the number of accels we have
 435 size_t wxMenu::CopyAccels(wxAcceleratorEntry *accels) const
 436 {
 437     size_t count = GetAccelCount();
 438     for ( size_t n = 0; n < count; n++ )
 439     {
 440         *accels++ = *m_accels[n];
 441     }
 442
 443     return count;
 444 }
 445
 446 #endif // wxUSE_ACCEL
 447
 448 // ---------------------------------------------------------------------------
 449 // set wxMenu title
 450 // ---------------------------------------------------------------------------
 451
 452 void wxMenu::SetTitle(const wxString& label)
 453 {
 454     bool hasNoTitle = m_title.IsEmpty();
 455     m_title = label;
 456
 457     HMENU hMenu = GetHmenu();
 458
 459     if ( hasNoTitle )
 460     {
 461         if ( !label.IsEmpty() )
 462         {
 463             if ( !::InsertMenu(hMenu, 0u, MF_BYPOSITION | MF_STRING,
 464                                (unsigned)idMenuTitle, m_title) ||
 465                  !::InsertMenu(hMenu, 1u, MF_BYPOSITION, (unsigned)-1, NULL) )
 466             {
 467                 wxLogLastError(wxT("InsertMenu"));
 468             }
 469         }
 470     }
 471     else
 472     {
 473         if ( label.IsEmpty() )
 474         {
 475             // remove the title and the separator after it
 476             if ( !RemoveMenu(hMenu, 0, MF_BYPOSITION) ||
 477                  !RemoveMenu(hMenu, 0, MF_BYPOSITION) )
 478             {
 479                 wxLogLastError(wxT("RemoveMenu"));
 480             }
 481         }
 482         else
 483         {
 484             // modify the title
 485 #ifdef __WXWINCE__
 486             MENUITEMINFO info;
 487             wxZeroMemory(info);
 488             info.cbSize = sizeof(info);
 489             info.fMask = MIIM_TYPE;
 490             info.fType = MFT_STRING;
 491             info.cch = m_title.Length();
 492             info.dwTypeData = (LPTSTR) m_title.c_str();
 493             if ( !SetMenuItemInfo(hMenu, 0, TRUE, & info) )
 494             {
 495                 wxLogLastError(wxT("SetMenuItemInfo"));
 496             }
 497 #else
 498             if ( !ModifyMenu(hMenu, 0u,
 499                              MF_BYPOSITION | MF_STRING,
 500                              (unsigned)idMenuTitle, m_title) )
 501             {
 502                 wxLogLastError(wxT("ModifyMenu"));
 503             }
 504 #endif
 505         }
 506     }
 507
 508 #ifdef __WIN32__
 509     // put the title string in bold face
 510     if ( !m_title.IsEmpty() )
 511     {
 512         SetDefaultMenuItem(GetHmenu(), (UINT)idMenuTitle);
 513     }
 514 #endif // Win32
 515 }
 516
 517 // ---------------------------------------------------------------------------
 518 // event processing
 519 // ---------------------------------------------------------------------------
 520
 521 bool wxMenu::MSWCommand(WXUINT WXUNUSED(param), WXWORD id)
 522 {
 523     // ignore commands from the menu title
 524
 525     // NB: VC++ generates wrong assembler for `if ( id != idMenuTitle )'!!
 526     if ( id != (WXWORD)idMenuTitle )
 527     {
 528         // VZ: previosuly, the command int was set to id too which was quite
 529         //     useless anyhow (as it could be retrieved using GetId()) and
 530         //     uncompatible with wxGTK, so now we use the command int instead
 531         //     to pass the checked status
 532         UINT menuState = ::GetMenuState(GetHmenu(), id, MF_BYCOMMAND) ;
 533         SendEvent(id, menuState & MF_CHECKED);
 534     }
 535
 536     return TRUE;
 537 }
 538
 539 // ---------------------------------------------------------------------------
 540 // other
 541 // ---------------------------------------------------------------------------
 542
 543 wxWindow *wxMenu::GetWindow() const
 544 {
 545     if ( m_invokingWindow != NULL )
 546         return m_invokingWindow;
 547     else if ( m_menuBar != NULL)
 548         return m_menuBar->GetFrame();
 549
 550     return NULL;
 551 }
 552
 553 // ---------------------------------------------------------------------------
 554 // Menu Bar
 555 // ---------------------------------------------------------------------------
 556
 557 void wxMenuBar::Init()
 558 {
 559     m_eventHandler = this;
 560     m_hMenu = 0;
 561 }
 562
 563 wxMenuBar::wxMenuBar()
 564 {
 565     Init();
 566 }
 567
 568 wxMenuBar::wxMenuBar( long WXUNUSED(style) )
 569 {
 570     Init();
 571 }
 572
 573 wxMenuBar::wxMenuBar(int count, wxMenu *menus[], const wxString titles[])
 574 {
 575     Init();
 576
 577     m_titles.Alloc(count);
 578
 579     for ( int i = 0; i < count; i++ )
 580     {
 581         m_menus.Append(menus[i]);
 582         m_titles.Add(titles[i]);
 583
 584         menus[i]->Attach(this);
 585     }
 586 }
 587
 588 wxMenuBar::~wxMenuBar()
 589 {
 590     // we should free Windows resources only if Windows doesn't do it for us
 591     // which happens if we're attached to a frame
 592     if (m_hMenu && !IsAttached())
 593     {
 594         ::DestroyMenu((HMENU)m_hMenu);
 595         m_hMenu = (WXHMENU)NULL;
 596     }
 597 }
 598
 599 // ---------------------------------------------------------------------------
 600 // wxMenuBar helpers
 601 // ---------------------------------------------------------------------------
 602
 603 void wxMenuBar::Refresh()
 604 {
 605     wxCHECK_RET( IsAttached(), wxT("can't refresh unattached menubar") );
 606
 607     DrawMenuBar(GetHwndOf(GetFrame()));
 608 }
 609
 610 WXHMENU wxMenuBar::Create()
 611 {
 612     if ( m_hMenu != 0 )
 613         return m_hMenu;
 614
 615     m_hMenu = (WXHMENU)::CreateMenu();
 616
 617     if ( !m_hMenu )
 618     {
 619         wxLogLastError(wxT("CreateMenu"));
 620     }
 621     else
 622     {
 623         size_t count = GetMenuCount(), i;
 624         wxMenuList::iterator it;
 625         for ( i = 0, it = m_menus.begin(); i < count; i++, it++ )
 626         {
 627             if ( !::AppendMenu((HMENU)m_hMenu, MF_POPUP | MF_STRING,
 628                                (UINT)(*it)->GetHMenu(),
 629                                m_titles[i]) )
 630             {
 631                 wxLogLastError(wxT("AppendMenu"));
 632             }
 633         }
 634     }
 635
 636     return m_hMenu;
 637 }
 638
 639 // ---------------------------------------------------------------------------
 640 // wxMenuBar functions to work with the top level submenus
 641 // ---------------------------------------------------------------------------
 642
 643 // NB: we don't support owner drawn top level items for now, if we do these
 644 //     functions would have to be changed to use wxMenuItem as well
 645
 646 void wxMenuBar::EnableTop(size_t pos, bool enable)
 647 {
 648     wxCHECK_RET( IsAttached(), wxT("doesn't work with unattached menubars") );
 649
 650     int flag = enable ? MF_ENABLED : MF_GRAYED;
 651
 652     EnableMenuItem((HMENU)m_hMenu, pos, MF_BYPOSITION | flag);
 653
 654     Refresh();
 655 }
 656
 657 void wxMenuBar::SetLabelTop(size_t pos, const wxString& label)
 658 {
 659     wxCHECK_RET( pos < GetMenuCount(), wxT("invalid menu index") );
 660
 661     m_titles[pos] = label;
 662
 663     if ( !IsAttached() )
 664     {
 665         return;
 666     }
 667     //else: have to modify the existing menu
 668
 669     UINT id;
 670     UINT flagsOld = ::GetMenuState((HMENU)m_hMenu, pos, MF_BYPOSITION);
 671     if ( flagsOld == 0xFFFFFFFF )
 672     {
 673         wxLogLastError(wxT("GetMenuState"));
 674
 675         return;
 676     }
 677
 678     if ( flagsOld & MF_POPUP )
 679     {
 680         // HIBYTE contains the number of items in the submenu in this case
 681         flagsOld &= 0xff;
 682         id = (UINT)::GetSubMenu((HMENU)m_hMenu, pos);
 683     }
 684     else
 685     {
 686         id = pos;
 687     }
 688
 689 #ifdef __WXWINCE__
 690     MENUITEMINFO info;
 691     wxZeroMemory(info);
 692     info.cbSize = sizeof(info);
 693     info.fMask = MIIM_TYPE;
 694     info.fType = MFT_STRING;
 695     info.cch = label.Length();
 696     info.dwTypeData = (LPTSTR) label.c_str();
 697     if ( !SetMenuItemInfo(GetHmenu(), id, TRUE, & info) )
 698     {
 699         wxLogLastError(wxT("SetMenuItemInfo"));
 700     }
 701
 702 #else
 703     if ( ::ModifyMenu(GetHmenu(), pos, MF_BYPOSITION | MF_STRING | flagsOld,
 704         id, label) == (int)0xFFFFFFFF )
 705     {
 706         wxLogLastError(wxT("ModifyMenu"));
 707     }
 708 #endif
 709
 710     Refresh();
 711 }
 712
 713 wxString wxMenuBar::GetLabelTop(size_t pos) const
 714 {
 715     wxCHECK_MSG( pos < GetMenuCount(), wxEmptyString,
 716                  wxT("invalid menu index in wxMenuBar::GetLabelTop") );
 717
 718     return m_titles[pos];
 719 }
 720
 721 // ---------------------------------------------------------------------------
 722 // wxMenuBar construction
 723 // ---------------------------------------------------------------------------
 724
 725 wxMenu *wxMenuBar::Replace(size_t pos, wxMenu *menu, const wxString& title)
 726 {
 727     wxMenu *menuOld = wxMenuBarBase::Replace(pos, menu, title);
 728     if ( !menuOld )
 729         return NULL;
 730
 731     m_titles[pos] = title;
 732
 733     if ( IsAttached() )
 734     {
 735         // can't use ModifyMenu() because it deletes the submenu it replaces
 736         if ( !::RemoveMenu(GetHmenu(), (UINT)pos, MF_BYPOSITION) )
 737         {
 738             wxLogLastError(wxT("RemoveMenu"));
 739         }
 740
 741         if ( !::InsertMenu(GetHmenu(), (UINT)pos,
 742                            MF_BYPOSITION | MF_POPUP | MF_STRING,
 743                            (UINT)GetHmenuOf(menu), title) )
 744         {
 745             wxLogLastError(wxT("InsertMenu"));
 746         }
 747
 748 #if wxUSE_ACCEL
 749         if ( menuOld->HasAccels() || menu->HasAccels() )
 750         {
 751             // need to rebuild accell table
 752             RebuildAccelTable();
 753         }
 754 #endif // wxUSE_ACCEL
 755
 756         Refresh();
 757     }
 758
 759     return menuOld;
 760 }
 761
 762 bool wxMenuBar::Insert(size_t pos, wxMenu *menu, const wxString& title)
 763 {
 764     if ( !wxMenuBarBase::Insert(pos, menu, title) )
 765         return FALSE;
 766
 767     m_titles.Insert(title, pos);
 768
 769     if ( IsAttached() )
 770     {
 771         if ( !::InsertMenu(GetHmenu(), pos,
 772                            MF_BYPOSITION | MF_POPUP | MF_STRING,
 773                            (UINT)GetHmenuOf(menu), title) )
 774         {
 775             wxLogLastError(wxT("InsertMenu"));
 776         }
 777
 778 #if wxUSE_ACCEL
 779         if ( menu->HasAccels() )
 780         {
 781             // need to rebuild accell table
 782             RebuildAccelTable();
 783         }
 784 #endif // wxUSE_ACCEL
 785
 786         Refresh();
 787     }
 788
 789     return TRUE;
 790 }
 791
 792 bool wxMenuBar::Append(wxMenu *menu, const wxString& title)
 793 {
 794     WXHMENU submenu = menu ? menu->GetHMenu() : 0;
 795     wxCHECK_MSG( submenu, FALSE, wxT("can't append invalid menu to menubar") );
 796
 797     if ( !wxMenuBarBase::Append(menu, title) )
 798         return FALSE;
 799
 800     m_titles.Add(title);
 801
 802     if ( IsAttached() )
 803     {
 804         if ( !::AppendMenu(GetHmenu(), MF_POPUP | MF_STRING,
 805                            (UINT)submenu, title) )
 806         {
 807             wxLogLastError(wxT("AppendMenu"));
 808         }
 809
 810 #if wxUSE_ACCEL
 811         if ( menu->HasAccels() )
 812         {
 813             // need to rebuild accell table
 814             RebuildAccelTable();
 815         }
 816 #endif // wxUSE_ACCEL
 817
 818         Refresh();
 819     }
 820
 821     return TRUE;
 822 }
 823
 824 wxMenu *wxMenuBar::Remove(size_t pos)
 825 {
 826     wxMenu *menu = wxMenuBarBase::Remove(pos);
 827     if ( !menu )
 828         return NULL;
 829
 830     if ( IsAttached() )
 831     {
 832         if ( !::RemoveMenu(GetHmenu(), (UINT)pos, MF_BYPOSITION) )
 833         {
 834             wxLogLastError(wxT("RemoveMenu"));
 835         }
 836
 837 #if wxUSE_ACCEL
 838         if ( menu->HasAccels() )
 839         {
 840             // need to rebuild accell table
 841             RebuildAccelTable();
 842         }
 843 #endif // wxUSE_ACCEL
 844
 845         Refresh();
 846     }
 847
 848     m_titles.RemoveAt(pos);
 849
 850     return menu;
 851 }
 852
 853 #if wxUSE_ACCEL
 854
 855 void wxMenuBar::RebuildAccelTable()
 856 {
 857     // merge the accelerators of all menus into one accel table
 858     size_t nAccelCount = 0;
 859     size_t i, count = GetMenuCount();
 860     wxMenuList::iterator it;
 861     for ( i = 0, it = m_menus.begin(); i < count; i++, it++ )
 862     {
 863         nAccelCount += (*it)->GetAccelCount();
 864     }
 865
 866     if ( nAccelCount )
 867     {
 868         wxAcceleratorEntry *accelEntries = new wxAcceleratorEntry[nAccelCount];
 869
 870         nAccelCount = 0;
 871         for ( i = 0, it = m_menus.begin(); i < count; i++, it++ )
 872         {
 873             nAccelCount += (*it)->CopyAccels(&accelEntries[nAccelCount]);
 874         }
 875
 876         m_accelTable = wxAcceleratorTable(nAccelCount, accelEntries);
 877
 878         delete [] accelEntries;
 879     }
 880 }
 881
 882 #endif // wxUSE_ACCEL
 883
 884 void wxMenuBar::Attach(wxFrame *frame)
 885 {
 886     wxMenuBarBase::Attach(frame);
 887
 888 #if wxUSE_ACCEL
 889     RebuildAccelTable();
 890 #endif // wxUSE_ACCEL
 891 }
 892
 893 void wxMenuBar::Detach()
 894 {
 895     wxMenuBarBase::Detach();
 896 }
 897
 898 #endif // wxUSE_MENUS