src/os2/menu.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        menu.cpp
   3 // Purpose:     wxMenu, wxMenuBar, wxMenuItem
   4 // Author:      David Webster
   5 // Modified by:
   6 // Created:     10/10/99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) David Webster
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13     #pragma implementation "menu.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifndef WX_PRECOMP
  20     #include "wx/app.h"
  21     #include "wx/frame.h"
  22     #include "wx/menu.h"
  23     #include "wx/utils.h"
  24     #include "wx/intl.h"
  25     #include "wx/log.h"
  26 #endif
  27
  28 #if wxUSE_OWNER_DRAWN
  29     #include "wx/ownerdrw.h"
  30 #endif
  31
  32 #include "wx/os2/private.h"
  33
  34 // other standard headers
  35 #include <string.h>
  36
  37 // ----------------------------------------------------------------------------
  38 // global variables
  39 // ----------------------------------------------------------------------------
  40
  41 extern wxMenu*                      wxCurrentPopupMenu;
  42
  43 // ----------------------------------------------------------------------------
  44 // constants
  45 // ----------------------------------------------------------------------------
  46
  47 //
  48 // The (popup) menu title has this special id
  49 //
  50 static const int                    idMenuTitle = -2;
  51
  52 //
  53 // The unique ID for Menus
  54 //
  55 #ifdef __VISAGECPP__
  56 USHORT                              wxMenu::m_nextMenuId = 0;
  57 #else
  58 static USHORT                       wxMenu::m_nextMenuId = 0;
  59 #endif
  60
  61 // ----------------------------------------------------------------------------
  62 // macros
  63 // ----------------------------------------------------------------------------
  64
  65     IMPLEMENT_DYNAMIC_CLASS(wxMenu, wxEvtHandler)
  66     IMPLEMENT_DYNAMIC_CLASS(wxMenuBar, wxEvtHandler)
  67
  68 // ----------------------------------------------------------------------------
  69 // static function for translating menu labels
  70 // ----------------------------------------------------------------------------
  71
  72 static wxString TextToLabel(const wxString& rTitle)
  73 {
  74     wxString Title;
  75     const wxChar *pc;
  76     for (pc = rTitle.c_str(); *pc != wxT('\0'); pc++ )
  77     {
  78         if (*pc == wxT('&') )
  79         {
  80             if (*(pc+1) == wxT('&'))
  81             {
  82                 pc++;
  83                 Title << wxT('&');
  84             }
  85             else
  86                 Title << wxT('~');
  87         }
  88         else
  89         {
  90             if ( *pc == wxT('~') )
  91             {
  92                 // tildes must be doubled to prevent them from being
  93                 // interpreted as accelerator character prefix by PM ???
  94                 Title << *pc;
  95             }
  96             Title << *pc;
  97         }
  98     }
  99     return Title;
 100 }
 101
 102 // ============================================================================
 103 // implementation
 104 // ============================================================================
 105
 106 // ---------------------------------------------------------------------------
 107 // wxMenu construction, adding and removing menu items
 108 // ---------------------------------------------------------------------------
 109
 110 //
 111 // Construct a menu with optional title (then use append)
 112 //
 113 void wxMenu::Init()
 114 {
 115     m_bDoBreak = FALSE;
 116
 117     //
 118     // Create the menu (to be used as a submenu or a popup)
 119     //
 120     if ((m_hMenu =  ::WinCreateWindow( HWND_DESKTOP
 121                                       ,WC_MENU
 122                                       ,"Menu"
 123                                       ,0L
 124                                       ,0L
 125                                       ,0L
 126                                       ,0L
 127                                       ,0L
 128                                       ,NULLHANDLE
 129                                       ,HWND_TOP
 130                                       ,0L
 131                                       ,NULL
 132                                       ,NULL
 133                                      )) == 0)
 134     {
 135         wxLogLastError("WinLoadMenu");
 136     }
 137     m_vMenuData.iPosition   = 0;
 138     m_vMenuData.afStyle     = MIS_SUBMENU | MIS_TEXT;
 139     m_vMenuData.afAttribute = (USHORT)0;
 140     m_vMenuData.id          = m_nextMenuId++;
 141     m_vMenuData.hwndSubMenu = m_hMenu;
 142     m_vMenuData.hItem       = NULLHANDLE;
 143
 144     //
 145     // If we have a title, insert it in the beginning of the menu
 146     //
 147     if (!m_title.IsEmpty())
 148     {
 149         Append( idMenuTitle
 150                ,m_title
 151               );
 152         AppendSeparator();
 153     }
 154 } // end of wxMenu::Init
 155
 156 //
 157 // The wxWindow destructor will take care of deleting the submenus.
 158 //
 159 wxMenu::~wxMenu()
 160 {
 161     //
 162     // We should free PM resources only if PM doesn't do it for us
 163     // which happens if we're attached to a menubar or a submenu of another
 164     // menu
 165     if (!IsAttached() && !GetParent())
 166     {
 167         if (!::WinDestroyWindow((HWND)GetHmenu()) )
 168         {
 169             wxLogLastError("WinDestroyWindow");
 170         }
 171     }
 172
 173 #if wxUSE_ACCEL
 174     //
 175     // Delete accels
 176     //
 177 #if (!(defined(__VISAGECPP__) && (__IBMCPP__ < 400 || __IBMC__ < 400 )))
 178     WX_CLEAR_ARRAY(m_vAccels);
 179 #endif
 180 #endif // wxUSE_ACCEL
 181 } // end of wxMenu::~wxMenu
 182
 183 void wxMenu::Break()
 184 {
 185     // this will take effect during the next call to Append()
 186     m_bDoBreak = TRUE;
 187 } // end of wxMenu::Break
 188
 189 #if wxUSE_ACCEL
 190
 191 int wxMenu::FindAccel(
 192   int                               nId
 193 ) const
 194 {
 195     size_t                          n;
 196     size_t                          nCount = m_vAccels.GetCount();
 197
 198     for (n = 0; n < nCount; n++)
 199     {
 200         if (m_vAccels[n]->m_command == nId)
 201             return n;
 202     }
 203     return wxNOT_FOUND;
 204 } // end of wxMenu::FindAccel
 205
 206 void wxMenu::UpdateAccel(
 207   wxMenuItem*                       pItem
 208 )
 209 {
 210     //
 211     // Find the (new) accel for this item
 212     //
 213     wxAcceleratorEntry*             pAccel = wxGetAccelFromString(pItem->GetText());
 214
 215     if (pAccel)
 216         pAccel->m_command = pItem->GetId();
 217
 218     //
 219     // Find the old one
 220     //
 221     int                             n = FindAccel(pItem->GetId());
 222
 223     if (n == wxNOT_FOUND)
 224     {
 225         //
 226         // No old, add new if any
 227         //
 228         if (pAccel)
 229             m_vAccels.Add(pAccel);
 230         else
 231             return;     // skipping RebuildAccelTable() below
 232     }
 233     else
 234     {
 235         //
 236         // Replace old with new or just remove the old one if no new
 237         //
 238         delete                      m_vAccels[n];
 239
 240         if (pAccel)
 241             m_vAccels[n] = pAccel;
 242         else
 243             m_vAccels.RemoveAt(n);
 244     }
 245
 246     if (IsAttached())
 247     {
 248         m_menuBar->RebuildAccelTable();
 249     }
 250 } // wxMenu::UpdateAccel
 251
 252 #endif // wxUSE_ACCEL
 253
 254 //
 255 // Append a new item or submenu to the menu
 256 //
 257 bool wxMenu::DoInsertOrAppend(
 258   wxMenuItem*                       pItem
 259 , size_t                            nPos
 260 )
 261 {
 262     ERRORID                         vError;
 263     wxString                        sError;
 264     char                            zMsg[128];
 265 #if wxUSE_ACCEL
 266     UpdateAccel(pItem);
 267 #endif // wxUSE_ACCEL
 268
 269     //
 270     // rItem is the member MENUITEM for the  menu items and the submenu's
 271     // MENUITEM for submenus as required by ::MM_INSERTITEM message API
 272     //
 273
 274     wxMenu*                         pSubmenu = pItem->GetSubMenu();
 275     MENUITEM&                       rItem = (pSubmenu != NULL)?pSubmenu->m_vMenuData:
 276                                             pItem->m_vMenuData;
 277     if(pSubmenu != NULL)
 278     {
 279         wxASSERT_MSG(pSubmenu->GetHMenu(), wxT("invalid submenu"));
 280         pSubmenu->SetParent(this);
 281         rItem.afStyle |= MIS_SUBMENU | MIS_TEXT;
 282     }
 283
 284     //
 285     // If "Break" has just been called, insert a menu break before this item
 286     // (and don't forget to reset the flag)
 287     //
 288     if (m_bDoBreak)
 289     {
 290         rItem.afStyle |= MIS_BREAK;
 291         m_bDoBreak = FALSE;
 292     }
 293
 294     if (pItem->IsSeparator())
 295     {
 296         rItem.afStyle |= MIS_SEPARATOR;
 297     }
 298
 299     //
 300     // Id is the numeric id for normal menu items and HMENU for submenus as
 301     // required by ::MM_INSERTITEM message API
 302     //
 303
 304     if (pSubmenu != NULL)
 305     {
 306         wxASSERT_MSG(pSubmenu->GetHMenu(), wxT("invalid submenu"));
 307         pSubmenu->SetParent(this);
 308
 309         rItem.iPosition = 0; // submenus have a 0 position
 310         rItem.id = (USHORT)pSubmenu->GetHMenu();
 311         rItem.afStyle |= MIS_SUBMENU | MIS_TEXT;
 312     }
 313     else
 314     {
 315         rItem.id = pItem->GetId();
 316     }
 317
 318     BYTE*                           pData;
 319
 320 #if wxUSE_OWNER_DRAWN
 321     if (pItem->IsOwnerDrawn())
 322     {
 323         //
 324         // Want to get {Measure|Draw}Item messages?
 325         // item draws itself, passing pointer to data doesn't work in OS/2
 326         // Will eventually need to set the image handle somewhere into vItem.hItem
 327         //
 328         rItem.afStyle |= MIS_OWNERDRAW;
 329         pData = (BYTE*)NULL;
 330         rItem.hItem = (HBITMAP)pItem->GetBitmap().GetHBITMAP();
 331         pItem->m_vMenuData.afStyle = rItem.afStyle;
 332         pItem->m_vMenuData.hItem = rItem.hItem;
 333     }
 334     else
 335 #endif
 336     {
 337         //
 338         // Menu is just a normal string (passed in data parameter)
 339         //
 340         rItem.afStyle |= MIS_TEXT;
 341         pData = (char*)pItem->GetText().c_str();
 342     }
 343
 344     if (nPos == (size_t)-1)
 345     {
 346         rItem.iPosition = MIT_END;
 347     }
 348     else
 349     {
 350         rItem.iPosition = nPos;
 351     }
 352
 353     APIRET                          rc;
 354
 355     rc = (APIRET)::WinSendMsg( GetHmenu()
 356                               ,MM_INSERTITEM
 357                               ,(MPARAM)&rItem
 358                               ,(MPARAM)pData
 359                              );
 360 #if wxUSE_OWNER_DRAWN
 361     if (pItem->IsOwnerDrawn())
 362     {
 363         BOOL                       rc;
 364         MENUITEM                   vMenuItem;
 365
 366         ::WinSendMsg( GetHmenu()
 367                      ,MM_QUERYITEM
 368                      ,MPFROM2SHORT( (USHORT)pItem->GetId()
 369                                    ,(USHORT)(FALSE)
 370                                   )
 371                      ,&vMenuItem
 372                     );
 373     }
 374 #endif
 375     if (rc == MIT_MEMERROR || rc == MIT_ERROR)
 376     {
 377         vError = ::WinGetLastError(vHabmain);
 378         sError = wxPMErrorToStr(vError);
 379         wxLogError("Error inserting or appending a menuitem. Error: %s\n", sError);
 380         wxLogLastError("Insert or AppendMenu");
 381         return FALSE;
 382     }
 383     else
 384     {
 385         //
 386         // If we're already attached to the menubar, we must update it
 387         //
 388         if (IsAttached() && m_menuBar->IsAttached())
 389         {
 390             m_menuBar->Refresh();
 391         }
 392         return TRUE;
 393     }
 394     return FALSE;
 395 } // end of wxMenu::DoInsertOrAppend
 396
 397 bool wxMenu::DoAppend(
 398   wxMenuItem*                       pItem
 399 )
 400 {
 401     return wxMenuBase::DoAppend(pItem) && DoInsertOrAppend(pItem);
 402 }
 403
 404 bool wxMenu::DoInsert(
 405   size_t                            nPos
 406 , wxMenuItem*                       pItem
 407 )
 408 {
 409     return ( wxMenuBase::DoInsert( nPos
 410                                   ,pItem) &&
 411              DoInsertOrAppend( pItem
 412                               ,nPos
 413                              ));
 414 } // end of wxMenu::DoInsert
 415
 416 wxMenuItem* wxMenu::DoRemove(
 417   wxMenuItem*                       pItem
 418 )
 419 {
 420     //
 421     // We need to find the items position in the child list
 422     //
 423     size_t                          nPos;
 424     wxMenuItemList::Node*           pNode = GetMenuItems().GetFirst();
 425
 426     for (nPos = 0; pNode; nPos++)
 427     {
 428         if (pNode->GetData() == pItem)
 429             break;
 430         pNode = pNode->GetNext();
 431     }
 432
 433     //
 434     // DoRemove() (unlike Remove) can only be called for existing item!
 435     //
 436     wxCHECK_MSG(pNode, NULL, wxT("bug in wxMenu::Remove logic"));
 437
 438 #if wxUSE_ACCEL
 439     //
 440     // Remove the corresponding accel from the accel table
 441     //
 442     int                             n = FindAccel(pItem->GetId());
 443
 444     if (n != wxNOT_FOUND)
 445     {
 446         delete m_vAccels[n];
 447         m_vAccels.RemoveAt(n);
 448     }
 449
 450 #endif // wxUSE_ACCEL
 451     //
 452     // Remove the item from the menu
 453     //
 454     ::WinSendMsg( GetHmenu()
 455                  ,MM_REMOVEITEM
 456                  ,MPFROM2SHORT(pItem->GetId(), TRUE)
 457                  ,(MPARAM)0
 458                 );
 459     if (IsAttached() && m_menuBar->IsAttached())
 460     {
 461         //
 462         // Otherwise, the chane won't be visible
 463         //
 464         m_menuBar->Refresh();
 465     }
 466
 467     //
 468     // And from internal data structures
 469     //
 470     return wxMenuBase::DoRemove(pItem);
 471 } // end of wxMenu::DoRemove
 472
 473 // ---------------------------------------------------------------------------
 474 // accelerator helpers
 475 // ---------------------------------------------------------------------------
 476
 477 #if wxUSE_ACCEL
 478
 479 //
 480 // Create the wxAcceleratorEntries for our accels and put them into provided
 481 // array - return the number of accels we have
 482 //
 483 size_t wxMenu::CopyAccels(
 484   wxAcceleratorEntry*               pAccels
 485 ) const
 486 {
 487     size_t                          nCount = GetAccelCount();
 488
 489     for (size_t n = 0; n < nCount; n++)
 490     {
 491         *pAccels++ = *m_vAccels[n];
 492     }
 493     return nCount;
 494 } // end of wxMenu::CopyAccels
 495
 496 #endif // wxUSE_ACCEL
 497
 498 // ---------------------------------------------------------------------------
 499 // set wxMenu title
 500 // ---------------------------------------------------------------------------
 501
 502 void wxMenu::SetTitle(
 503   const wxString&                   rLabel
 504 )
 505 {
 506     bool                            bHasNoTitle = m_title.IsEmpty();
 507     HWND                            hMenu = GetHmenu();
 508
 509     m_title = rLabel;
 510     if (bHasNoTitle)
 511     {
 512         if (!rLabel.IsEmpty())
 513         {
 514             if (!::WinSetWindowText(hMenu, rLabel.c_str()))
 515             {
 516                 wxLogLastError("SetMenuTitle");
 517             }
 518         }
 519     }
 520     else
 521     {
 522         if (rLabel.IsEmpty() )
 523         {
 524             ::WinSendMsg( GetHmenu()
 525                          ,MM_REMOVEITEM
 526                          ,MPFROM2SHORT(hMenu, TRUE)
 527                          ,(MPARAM)0
 528                         );
 529         }
 530         else
 531         {
 532             //
 533             // Modify the title
 534             //
 535             if (!::WinSetWindowText(hMenu, rLabel.c_str()))
 536             {
 537                 wxLogLastError("SetMenuTitle");
 538             }
 539         }
 540     }
 541 } // end of wxMenu::SetTitle
 542
 543 // ---------------------------------------------------------------------------
 544 // event processing
 545 // ---------------------------------------------------------------------------
 546
 547 bool wxMenu::OS2Command(
 548   WXUINT                            WXUNUSED(uParam)
 549 , WXWORD                            vId
 550 )
 551 {
 552     //
 553     // Ignore commands from the menu title
 554     //
 555
 556     if (vId != (WXWORD)idMenuTitle)
 557     {
 558         SendEvent( vId
 559                   ,(int)::WinSendMsg( GetHmenu()
 560                                      ,MM_QUERYITEMATTR
 561                                      ,(MPARAM)vId
 562                                      ,(MPARAM)MIA_CHECKED
 563                                     )
 564                  );
 565     }
 566     return TRUE;
 567 } // end of wxMenu::OS2Command
 568
 569 // ---------------------------------------------------------------------------
 570 // other
 571 // ---------------------------------------------------------------------------
 572
 573 wxWindow* wxMenu::GetWindow() const
 574 {
 575     if (m_invokingWindow != NULL)
 576         return m_invokingWindow;
 577     else if ( m_menuBar != NULL)
 578         return m_menuBar->GetFrame();
 579
 580     return NULL;
 581 } // end of wxMenu::GetWindow
 582
 583 // recursive search for item by id
 584 wxMenuItem* wxMenu::FindItem(
 585   int                               nItemId
 586 , ULONG                             hItem
 587 , wxMenu**                          ppItemMenu
 588 ) const
 589 {
 590     if ( ppItemMenu )
 591         *ppItemMenu = NULL;
 592
 593     wxMenuItem*                     pItem = NULL;
 594
 595     for ( wxMenuItemList::Node *node = m_items.GetFirst();
 596           node && !pItem;
 597           node = node->GetNext() )
 598     {
 599         pItem = node->GetData();
 600
 601         if ( pItem->GetId() == nItemId && pItem->m_vMenuData.hItem == hItem)
 602         {
 603             if ( ppItemMenu )
 604                 *ppItemMenu = (wxMenu *)this;
 605         }
 606         else if ( pItem->IsSubMenu() )
 607         {
 608             pItem = pItem->GetSubMenu()->FindItem( nItemId
 609                                                   ,hItem
 610                                                   ,ppItemMenu
 611                                                  );
 612             if (pItem)
 613                 break;
 614         }
 615         else
 616         {
 617             // don't exit the loop
 618             pItem = NULL;
 619         }
 620     }
 621     return pItem;
 622 } // end of wxMenu::FindItem
 623
 624 // ---------------------------------------------------------------------------
 625 // Menu Bar
 626 // ---------------------------------------------------------------------------
 627
 628 void wxMenuBar::Init()
 629 {
 630     m_eventHandler = this;
 631     m_pMenuBarFrame = NULL;
 632     m_hMenu = 0;
 633 } // end of wxMenuBar::Init
 634
 635 wxMenuBar::wxMenuBar()
 636 {
 637     Init();
 638 } // end of wxMenuBar::wxMenuBar
 639
 640 wxMenuBar::wxMenuBar(
 641  long                               WXUNUSED(lStyle)
 642 )
 643 {
 644     Init();
 645 } // end of wxMenuBar::wxMenuBar
 646
 647 wxMenuBar::wxMenuBar(
 648   int                               nCount
 649 , wxMenu*                           vMenus[]
 650 , const wxString                    sTitles[]
 651 )
 652 {
 653     Init();
 654
 655     m_titles.Alloc(nCount);
 656     for ( int i = 0; i < nCount; i++ )
 657     {
 658         m_menus.Append(vMenus[i]);
 659         m_titles.Add(sTitles[i]);
 660         vMenus[i]->Attach(this);
 661     }
 662 } // end of wxMenuBar::wxMenuBar
 663
 664 wxMenuBar::~wxMenuBar()
 665 {
 666 } // end of wxMenuBar::~wxMenuBar
 667
 668 // ---------------------------------------------------------------------------
 669 // wxMenuBar helpers
 670 // ---------------------------------------------------------------------------
 671
 672 void wxMenuBar::Refresh()
 673 {
 674     wxCHECK_RET( IsAttached(), wxT("can't refresh unatteched menubar") );
 675
 676     WinSendMsg(GetWinHwnd(m_pMenuBarFrame), WM_UPDATEFRAME, (MPARAM)FCF_MENU, (MPARAM)0);
 677 } // end of wxMenuBar::Refresh
 678
 679 WXHMENU wxMenuBar::Create()
 680 {
 681     MENUITEM                        vItem;
 682     HWND                            hFrame;
 683
 684     if (m_hMenu != 0 )
 685         return m_hMenu;
 686
 687     wxCHECK_MSG(!m_hMenu, TRUE, wxT("menubar already created"));
 688
 689     //
 690     // Menubars should be associated with a frame otherwise they are popups
 691     //
 692     if (m_pMenuBarFrame != NULL)
 693         hFrame = GetWinHwnd(m_pMenuBarFrame);
 694     else
 695         hFrame = HWND_DESKTOP;
 696     //
 697     // Create an empty menu and then fill it with insertions
 698     //
 699     if ((m_hMenu =  ::WinCreateWindow( hFrame
 700                                       ,WC_MENU
 701                                       ,(PSZ)NULL
 702                                       ,MS_ACTIONBAR | WS_SYNCPAINT | WS_VISIBLE
 703                                       ,0L
 704                                       ,0L
 705                                       ,0L
 706                                       ,0L
 707                                       ,hFrame
 708                                       ,HWND_TOP
 709                                       ,FID_MENU
 710                                       ,NULL
 711                                       ,NULL
 712                                      )) == 0)
 713     {
 714         wxLogLastError("WinLoadMenu");
 715     }
 716     else
 717     {
 718         size_t                      nCount = GetMenuCount();
 719
 720         for (size_t i = 0; i < nCount; i++)
 721         {
 722             APIRET                  rc;
 723             ERRORID                 vError;
 724             wxString                sError;
 725             HWND                    hSubMenu;
 726
 727             //
 728             // Set the parent and owner of the submenues to be the menubar, not the desktop
 729             //
 730             hSubMenu = m_menus[i]->m_vMenuData.hwndSubMenu;
 731             if (!::WinSetParent(m_menus[i]->m_vMenuData.hwndSubMenu, m_hMenu, FALSE))
 732             {
 733                 vError = ::WinGetLastError(vHabmain);
 734                 sError = wxPMErrorToStr(vError);
 735                 wxLogError("Error setting parent for submenu. Error: %s\n", sError);
 736                 return NULLHANDLE;
 737             }
 738
 739             if (!::WinSetOwner(m_menus[i]->m_vMenuData.hwndSubMenu, m_hMenu))
 740             {
 741                 vError = ::WinGetLastError(vHabmain);
 742                 sError = wxPMErrorToStr(vError);
 743                 wxLogError("Error setting parent for submenu. Error: %s\n", sError);
 744                 return NULLHANDLE;
 745             }
 746
 747             m_menus[i]->m_vMenuData.iPosition = i;
 748
 749             rc = (APIRET)::WinSendMsg(m_hMenu, MM_INSERTITEM, (MPARAM)&m_menus[i]->m_vMenuData, (MPARAM)m_titles[i].c_str());
 750             if (rc == MIT_MEMERROR || rc == MIT_ERROR)
 751             {
 752                 vError = ::WinGetLastError(vHabmain);
 753                 sError = wxPMErrorToStr(vError);
 754                 wxLogError("Error inserting or appending a menuitem. Error: %s\n", sError);
 755                 return NULLHANDLE;
 756             }
 757         }
 758     }
 759     return m_hMenu;
 760 } // end of wxMenuBar::Create
 761
 762 // ---------------------------------------------------------------------------
 763 // wxMenuBar functions to work with the top level submenus
 764 // ---------------------------------------------------------------------------
 765
 766 //
 767 // NB: we don't support owner drawn top level items for now, if we do these
 768 //     functions would have to be changed to use wxMenuItem as well
 769 //
 770 void wxMenuBar::EnableTop(
 771   size_t                            nPos
 772 , bool                              bEnable
 773 )
 774 {
 775     wxCHECK_RET(IsAttached(), wxT("doesn't work with unattached menubars"));
 776     USHORT                          uFlag = 0;
 777     SHORT                           nId;
 778
 779     if(!bEnable)
 780        uFlag = MIA_DISABLED;
 781
 782     nId = SHORT1FROMMR(::WinSendMsg((HWND)m_hMenu, MM_ITEMIDFROMPOSITION, MPFROMSHORT(nPos), (MPARAM)0));
 783     if (nId == MIT_ERROR)
 784     {
 785         wxLogLastError("LogLastError");
 786         return;
 787     }
 788     ::WinSendMsg((HWND)m_hMenu, MM_SETITEMATTR, MPFROM2SHORT(nId, TRUE), MPFROM2SHORT(MIA_DISABLED, uFlag));
 789     Refresh();
 790 } // end of wxMenuBar::EnableTop
 791
 792 void wxMenuBar::SetLabelTop(
 793   size_t                            nPos
 794 , const wxString&                   rLabel
 795 )
 796 {
 797     SHORT                           nId;
 798     MENUITEM                        vItem;
 799
 800     wxCHECK_RET(nPos < GetMenuCount(), wxT("invalid menu index"));
 801     m_titles[nPos] = rLabel;
 802
 803     if (!IsAttached())
 804     {
 805         return;
 806     }
 807
 808     nId = SHORT1FROMMR(::WinSendMsg((HWND)m_hMenu, MM_ITEMIDFROMPOSITION, MPFROMSHORT(nPos), (MPARAM)0));
 809     if (nId == MIT_ERROR)
 810     {
 811         wxLogLastError("LogLastError");
 812         return;
 813     }
 814     if(!::WinSendMsg( (HWND)m_hMenu
 815                      ,MM_QUERYITEM
 816                      ,MPFROM2SHORT(nId, TRUE)
 817                      ,MPARAM(&vItem)
 818                     ))
 819     {
 820         wxLogLastError("QueryItem");
 821     }
 822     nId = vItem.id;
 823
 824     if (::WinSendMsg(GetHmenu(), MM_SETITEMTEXT, MPFROMSHORT(nId), (MPARAM)rLabel.c_str()));
 825     {
 826         wxLogLastError("ModifyMenu");
 827     }
 828     Refresh();
 829 } // end of wxMenuBar::SetLabelTop
 830
 831 wxString wxMenuBar::GetLabelTop(
 832   size_t                            nPos
 833 ) const
 834 {
 835     wxCHECK_MSG( nPos < GetMenuCount(), wxEmptyString,
 836                  wxT("invalid menu index in wxMenuBar::GetLabelTop") );
 837     return m_titles[nPos];
 838 } // end of wxMenuBar::GetLabelTop
 839
 840 // ---------------------------------------------------------------------------
 841 // wxMenuBar construction
 842 // ---------------------------------------------------------------------------
 843
 844 wxMenu* wxMenuBar::Replace(
 845   size_t                             nPos
 846 , wxMenu*                            pMenu
 847 , const wxString&                    rTitle
 848 )
 849 {
 850     SHORT                            nId;
 851     wxString                         Title = TextToLabel(rTitle);
 852     wxMenu*                          pMenuOld = wxMenuBarBase::Replace( nPos
 853                                                                        ,pMenu
 854                                                                        ,Title
 855                                                                       );
 856
 857
 858     nId = SHORT1FROMMR(::WinSendMsg((HWND)m_hMenu, MM_ITEMIDFROMPOSITION, MPFROMSHORT(nPos), (MPARAM)0));
 859     if (nId == MIT_ERROR)
 860     {
 861         wxLogLastError("LogLastError");
 862         return NULL;
 863     }
 864     if (!pMenuOld)
 865         return FALSE;
 866     m_titles[nPos] = Title;
 867     if (IsAttached())
 868     {
 869         ::WinSendMsg((HWND)m_hMenu, MM_REMOVEITEM, MPFROM2SHORT(nId, TRUE), (MPARAM)0);
 870         ::WinSendMsg((HWND)m_hMenu, MM_INSERTITEM, (MPARAM)&pMenu->m_vMenuData, (MPARAM)Title.c_str());
 871
 872 #if wxUSE_ACCEL
 873         if (pMenuOld->HasAccels() || pMenu->HasAccels())
 874         {
 875             //
 876             // Need to rebuild accell table
 877             //
 878             RebuildAccelTable();
 879         }
 880 #endif // wxUSE_ACCEL
 881         Refresh();
 882     }
 883     return pMenuOld;
 884 } // end of wxMenuBar::Replace
 885
 886 bool wxMenuBar::Insert(
 887   size_t                            nPos
 888 , wxMenu*                           pMenu
 889 , const wxString&                   rTitle
 890 )
 891 {
 892     wxString Title = TextToLabel(rTitle);
 893     if (!wxMenuBarBase::Insert( nPos
 894                                ,pMenu
 895                                ,Title
 896                               ))
 897         return FALSE;
 898
 899     m_titles.Insert( Title
 900                     ,nPos
 901                    );
 902
 903     pMenu->Attach(this);
 904
 905     if (IsAttached())
 906     {
 907         ::WinSendMsg((HWND)m_hMenu, MM_INSERTITEM, (MPARAM)&pMenu->m_vMenuData, (MPARAM)Title.c_str());
 908 #if wxUSE_ACCEL
 909         if (pMenu->HasAccels())
 910         {
 911             // need to rebuild accell table
 912             RebuildAccelTable();
 913         }
 914 #endif // wxUSE_ACCEL
 915         Refresh();
 916     }
 917     return TRUE;
 918 } // end of wxMenuBar::Insert
 919
 920 bool wxMenuBar::Append(
 921   wxMenu*                           pMenu
 922 , const wxString&                   rTitle
 923 )
 924 {
 925     WXHMENU                         hSubmenu = pMenu ? pMenu->GetHMenu() : 0;
 926
 927     wxCHECK_MSG(hSubmenu, FALSE, wxT("can't append invalid menu to menubar"));
 928
 929     wxString Title = TextToLabel(rTitle);
 930     if (!wxMenuBarBase::Append(pMenu, Title))
 931         return FALSE;
 932
 933     m_titles.Add(Title);
 934
 935     if ( IsAttached() )
 936     {
 937         pMenu->m_vMenuData.iPosition = MIT_END;
 938         ::WinSendMsg((HWND)m_hMenu, MM_INSERTITEM, (MPARAM)&pMenu->m_vMenuData, (MPARAM)Title.c_str());
 939 #if wxUSE_ACCEL
 940         if (pMenu->HasAccels())
 941         {
 942             //
 943             // Need to rebuild accell table
 944             //
 945             RebuildAccelTable();
 946         }
 947 #endif // wxUSE_ACCEL
 948         Refresh();
 949     }
 950     return TRUE;
 951 } // end of wxMenuBar::Append
 952
 953 wxMenu* wxMenuBar::Remove(
 954   size_t                            nPos
 955 )
 956 {
 957     wxMenu*                         pMenu = wxMenuBarBase::Remove(nPos);
 958     SHORT                           nId;
 959
 960     if (!pMenu)
 961         return NULL;
 962
 963     nId = SHORT1FROMMR(::WinSendMsg((HWND)GetHmenu(), MM_ITEMIDFROMPOSITION, MPFROMSHORT(nPos), (MPARAM)0));
 964     if (nId == MIT_ERROR)
 965     {
 966         wxLogLastError("LogLastError");
 967         return NULL;
 968     }
 969     if (IsAttached())
 970     {
 971         ::WinSendMsg((HWND)GetHmenu(), MM_REMOVEITEM, MPFROM2SHORT(nId, TRUE), (MPARAM)0);
 972         pMenu->Detach();
 973
 974 #if wxUSE_ACCEL
 975         if (pMenu->HasAccels())
 976         {
 977             //
 978             // Need to rebuild accell table
 979             //
 980             RebuildAccelTable();
 981         }
 982 #endif // wxUSE_ACCEL
 983         Refresh();
 984     }
 985     m_titles.Remove(nPos);
 986     return pMenu;
 987 } // end of wxMenuBar::Remove
 988
 989 #if wxUSE_ACCEL
 990
 991 void wxMenuBar::RebuildAccelTable()
 992 {
 993     //
 994     // Merge the accelerators of all menus into one accel table
 995     //
 996     size_t                          nAccelCount = 0;
 997     size_t                          i;
 998     size_t                          nCount = GetMenuCount();
 999
1000     for (i = 0; i < nCount; i++)
1001     {
1002         nAccelCount += m_menus[i]->GetAccelCount();
1003     }
1004
1005     if (nAccelCount)
1006     {
1007         wxAcceleratorEntry*         pAccelEntries = new wxAcceleratorEntry[nAccelCount];
1008
1009         nAccelCount = 0;
1010         for (i = 0; i < nCount; i++)
1011         {
1012             nAccelCount += m_menus[i]->CopyAccels(&pAccelEntries[nAccelCount]);
1013         }
1014         m_vAccelTable = wxAcceleratorTable( nAccelCount
1015                                            ,pAccelEntries
1016                                           );
1017         delete [] pAccelEntries;
1018     }
1019 } // end of wxMenuBar::RebuildAccelTable
1020
1021 #endif // wxUSE_ACCEL
1022
1023 void wxMenuBar::Attach(
1024   wxFrame*                          pFrame
1025 )
1026 {
1027     wxASSERT_MSG( !IsAttached(), wxT("menubar already attached!") );
1028     m_pMenuBarFrame = pFrame;
1029
1030 #if wxUSE_ACCEL
1031     RebuildAccelTable();
1032     //
1033     // Ensure the accelerator table is set to the frame (not the client!)
1034     //
1035     if (!::WinSetAccelTable( vHabmain
1036                             ,(HWND)pFrame->GetHWND()
1037                             ,m_vAccelTable.GetHACCEL()
1038                            ))
1039         wxLogLastError("WinSetAccelTable");
1040 #endif // wxUSE_ACCEL
1041 } // end of wxMenuBar::Attach
1042
1043 void wxMenuBar::Detach()
1044 {
1045     ::WinDestroyWindow((HWND)m_hMenu);
1046     m_hMenu = (WXHMENU)NULL;
1047     m_pMenuBarFrame = NULL;
1048 } // end of wxMenuBar::Detach
1049
1050 // ---------------------------------------------------------------------------
1051 // wxMenuBar searching for menu items
1052 // ---------------------------------------------------------------------------
1053
1054 //
1055 // Find the itemString in menuString, and return the item id or wxNOT_FOUND
1056 //
1057 int wxMenuBar::FindMenuItem(
1058   const wxString&                   rMenuString
1059 , const wxString&                   rItemString
1060 ) const
1061 {
1062     wxString                        sMenuLabel = wxStripMenuCodes(rMenuString);
1063     size_t                          nCount = GetMenuCount();
1064
1065     for (size_t i = 0; i < nCount; i++)
1066     {
1067         wxString                    sTitle = wxStripMenuCodes(m_titles[i]);
1068
1069         if (rMenuString == sTitle)
1070             return m_menus[i]->FindItem(rItemString);
1071     }
1072     return wxNOT_FOUND;
1073 } // end of wxMenuBar::FindMenuItem
1074
1075 wxMenuItem* wxMenuBar::FindItem(
1076   int                               nId
1077 , wxMenu**                          ppItemMenu
1078 ) const
1079 {
1080     if (ppItemMenu)
1081         *ppItemMenu = NULL;
1082
1083     wxMenuItem*                     pItem = NULL;
1084     size_t                          nCount = GetMenuCount();
1085
1086     for (size_t i = 0; !pItem && (i < nCount); i++)
1087     {
1088         pItem = m_menus[i]->FindItem( nId
1089                                      ,ppItemMenu
1090                                     );
1091     }
1092     return pItem;
1093 } // end of wxMenuBar::FindItem
1094
1095 wxMenuItem* wxMenuBar::FindItem(
1096   int                               nId
1097 , ULONG                             hItem
1098 , wxMenu**                          ppItemMenu
1099 ) const
1100 {
1101     if (ppItemMenu)
1102         *ppItemMenu = NULL;
1103
1104     wxMenuItem*                     pItem = NULL;
1105     size_t                          nCount = GetMenuCount();
1106
1107     for (size_t i = 0; !pItem && (i < nCount); i++)
1108     {
1109         pItem = m_menus[i]->FindItem( nId
1110                                      ,hItem
1111                                      ,ppItemMenu
1112                                     );
1113     }
1114     return pItem;
1115 } // end of wxMenuBar::FindItem
1116