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 and Markus Holzem
   9 // Licence:     wxWindows license
  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 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include "wx/frame.h"
  25 #include "wx/menu.h"
  26 #include "wx/utils.h"
  27 #endif
  28
  29 #if wxUSE_OWNER_DRAWN
  30   #include "wx/ownerdrw.h"
  31 #endif
  32
  33 #include "wx/msw/private.h"
  34 #include "wx/msw/menu.h"
  35 #include "wx/menuitem.h"
  36 #include "wx/log.h"
  37
  38 // other standard headers
  39 // ----------------------
  40 #include <string.h>
  41
  42 // ----------------------------------------------------------------------------
  43 // constants
  44 // ----------------------------------------------------------------------------
  45
  46 // the (popup) menu title has this special id
  47 static const int idMenuTitle = -2;
  48
  49 // ----------------------------------------------------------------------------
  50 // wxWindows macros
  51 // ----------------------------------------------------------------------------
  52 #if !USE_SHARED_LIBRARY
  53   IMPLEMENT_DYNAMIC_CLASS(wxMenu, wxEvtHandler)
  54   IMPLEMENT_DYNAMIC_CLASS(wxMenuBar, wxEvtHandler)
  55 #endif
  56
  57 // ============================================================================
  58 // implementation
  59 // ============================================================================
  60
  61 // Menus
  62
  63 // Construct a menu with optional title (then use append)
  64 wxMenu::wxMenu(const wxString& Title, const wxFunction func)
  65 {
  66   m_title = Title;
  67   m_parent = NULL;
  68   m_eventHandler = this;
  69   m_pInvokingWindow = NULL;
  70   m_doBreak = FALSE ;
  71   m_noItems = 0;
  72   m_menuBar = NULL;
  73   m_hMenu = (WXHMENU) CreatePopupMenu();
  74   m_savehMenu = 0 ;
  75   m_topLevelMenu = this;
  76   m_clientData = (void*) NULL;
  77
  78   if (m_title != "")
  79   {
  80     Append(idMenuTitle, m_title) ;
  81     AppendSeparator() ;
  82   }
  83
  84   Callback(func);
  85 }
  86
  87 // The wxWindow destructor will take care of deleting the submenus.
  88 wxMenu::~wxMenu()
  89 {
  90   if (m_hMenu)
  91     DestroyMenu((HMENU) m_hMenu);
  92   m_hMenu = 0;
  93
  94   // Windows seems really bad on Menu de-allocation...
  95   // After many try, here is what I do: RemoveMenu() will ensure
  96   // that popup are "disconnected" from their parent; then call
  97   // delete method on each child (which in turn do a recursive job),
  98   // and finally, DestroyMenu()
  99   //
 100   // With that, BoundCheckers is happy, and no complaints...
 101 /*
 102   int N = 0 ;
 103   if (m_hMenu)
 104     N = GetMenuItemCount(m_hMenu);
 105   int i;
 106   for (i = N-1; i >= 0; i--)
 107     RemoveMenu(m_hMenu, i, MF_BYPOSITION);
 108 */
 109
 110   // How is deleting submenus in this loop any different from deleting
 111   // the submenus in the children list, via ~wxWindow ?
 112   // I'll reinstate this deletion for now and remove addition
 113   // from children list (which doesn't exist now)
 114   // Julian 1/3/97
 115   wxNode *node = m_menuItems.First();
 116   while (node)
 117   {
 118     wxMenuItem *item = (wxMenuItem *)node->Data();
 119
 120     // Delete child menus.
 121     // Beware: they must not be appended to children list!!!
 122     // (because order of delete is significant)
 123     if (item->GetSubMenu())
 124       item->DeleteSubMenu();
 125
 126     wxNode *next = node->Next();
 127     delete item;
 128     delete node;
 129     node = next;
 130   }
 131 /*
 132   if (m_hMenu)
 133     DestroyMenu(m_hMenu);
 134   m_hMenu = 0;
 135 */
 136 }
 137
 138 void wxMenu::Break()
 139 {
 140   m_doBreak = TRUE ;
 141 }
 142
 143 // function appends a new item or submenu to the menu
 144 void wxMenu::Append(wxMenuItem *pItem)
 145 {
 146   wxCHECK_RET( pItem != NULL, "can't append NULL item to the menu" );
 147
 148   m_menuItems.Append(pItem);
 149
 150   UINT  flags = 0;
 151
 152   if ( m_doBreak ) {
 153     flags |= MF_MENUBREAK;
 154     m_doBreak = FALSE;
 155   }
 156
 157   if ( pItem->IsSeparator() ) {
 158     flags |= MF_SEPARATOR;
 159   }
 160
 161   // id is the numeric id for normal menu items and HMENU for submenus
 162   UINT id;
 163   wxMenu *SubMenu = pItem->GetSubMenu();
 164   if ( SubMenu != NULL ) {
 165     wxASSERT( SubMenu->m_hMenu != (WXHMENU) NULL );
 166
 167     id = (UINT)SubMenu->m_hMenu;
 168
 169     SubMenu->m_topLevelMenu = m_topLevelMenu;
 170     SubMenu->m_parent       = this;
 171     SubMenu->m_savehMenu    = (WXHMENU)id;
 172     SubMenu->m_hMenu        = 0;
 173
 174     flags |= MF_POPUP;
 175   }
 176   else {
 177     id = pItem->GetId();
 178   }
 179
 180   LPCSTR pData;
 181
 182 #if wxUSE_OWNER_DRAWN
 183   if ( pItem->IsOwnerDrawn() ) {  // want to get {Measure|Draw}Item messages?
 184     // item draws itself, pass pointer to it in data parameter
 185     flags |= MF_OWNERDRAW;
 186     pData = (LPCSTR)pItem;
 187   }
 188   else
 189 #endif
 190   {
 191     // menu is just a normal string (passed in data parameter)
 192     flags |= MF_STRING;
 193     pData = pItem->GetName();
 194   }
 195
 196   // visually select the menu title
 197   if ( id == idMenuTitle )
 198   {
 199     // TODO use SetMenuItemInfo(MFS_DEFAULT) to put it in bold face
 200   }
 201
 202   HMENU hMenu = (HMENU)((m_hMenu == 0) ? m_savehMenu : m_hMenu);
 203   if ( !AppendMenu(hMenu, flags, id, pData) )
 204   {
 205     wxLogLastError("AppendMenu");
 206   }
 207
 208   m_noItems++;
 209 }
 210
 211 void wxMenu::AppendSeparator()
 212 {
 213   Append(new wxMenuItem(this, ID_SEPARATOR));
 214 }
 215
 216 // Pullright item
 217 void wxMenu::Append(int Id, const wxString& label, wxMenu *SubMenu,
 218                     const wxString& helpString)
 219 {
 220   Append(new wxMenuItem(this, Id, label, helpString, FALSE, SubMenu));
 221 }
 222
 223 // Ordinary menu item
 224 void wxMenu::Append(int Id, const wxString& label,
 225                     const wxString& helpString, bool checkable)
 226 {
 227   // 'checkable' parameter is useless for Windows.
 228   Append(new wxMenuItem(this, Id, label, helpString, checkable));
 229 }
 230
 231 void wxMenu::Delete(int id)
 232 {
 233   wxNode *node;
 234   int pos;
 235   HMENU menu;
 236
 237   wxMenuItem *item = NULL;
 238   for (pos = 0, node = m_menuItems.First(); node; node = node->Next(), pos++) {
 239          item = (wxMenuItem *)node->Data();
 240          if (item->GetId() == id)
 241                 break;
 242   }
 243
 244   if (!node)
 245         return;
 246
 247   menu = (HMENU)(m_hMenu ? m_hMenu : m_savehMenu);
 248
 249   wxMenu *pSubMenu = item->GetSubMenu();
 250   if ( pSubMenu != NULL ) {
 251     RemoveMenu(menu, (UINT)pos, MF_BYPOSITION);
 252     pSubMenu->m_hMenu = pSubMenu->m_savehMenu;
 253     pSubMenu->m_savehMenu = 0;
 254     pSubMenu->m_parent = NULL;
 255     //     RemoveChild(item->subMenu);
 256     pSubMenu->m_topLevelMenu = NULL;
 257     // TODO: Why isn't subMenu deleted here???
 258     // Will put this in for now. Assuming this is supposed
 259     // to delete the menu, not just remove it.
 260     item->DeleteSubMenu();
 261   }
 262   else {
 263     DeleteMenu(menu, (UINT)pos, MF_BYPOSITION);
 264   }
 265
 266   m_menuItems.DeleteNode(node);
 267   delete item;
 268 }
 269
 270 void wxMenu::Enable(int Id, bool Flag)
 271 {
 272   wxMenuItem *item = FindItemForId(Id);
 273   wxCHECK_RET( item != NULL, "can't enable non-existing menu item" );
 274
 275   item->Enable(Flag);
 276 }
 277
 278 bool wxMenu::Enabled(int Id) const
 279 {
 280   wxMenuItem *item = FindItemForId(Id);
 281   wxCHECK( item != NULL, FALSE );
 282
 283   return item->IsEnabled();
 284 }
 285
 286 void wxMenu::Check(int Id, bool Flag)
 287 {
 288   wxMenuItem *item = FindItemForId(Id);
 289   wxCHECK_RET( item != NULL, "can't get status of non-existing menu item" );
 290
 291   item->Check(Flag);
 292 }
 293
 294 bool wxMenu::Checked(int Id) const
 295 {
 296   wxMenuItem *item = FindItemForId(Id);
 297   wxCHECK( item != NULL, FALSE );
 298
 299   return item->IsChecked();
 300 }
 301
 302 void wxMenu::SetTitle(const wxString& label)
 303 {
 304   bool hasNoTitle = m_title.IsEmpty();
 305   m_title = label;
 306
 307   HMENU hMenu = (HMENU)((m_hMenu == 0) ? m_savehMenu : m_hMenu);
 308
 309   if ( hasNoTitle )
 310   {
 311     if ( !label.IsEmpty() )
 312     {
 313       if ( !InsertMenu(hMenu, 0u, MF_BYPOSITION | MF_STRING,
 314                        (unsigned)idMenuTitle, m_title) ||
 315            !InsertMenu(hMenu, 1u, MF_BYPOSITION, (unsigned)-1, NULL) )
 316       {
 317         wxLogLastError("InsertMenu");
 318       }
 319     }
 320   }
 321   else
 322   {
 323     if ( label.IsEmpty() )
 324     {
 325       // remove the title and the separator after it
 326       if ( !RemoveMenu(hMenu, 0, MF_BYPOSITION) ||
 327            !RemoveMenu(hMenu, 0, MF_BYPOSITION) )
 328       {
 329         wxLogLastError("RemoveMenu");
 330       }
 331     }
 332     else
 333     {
 334       // modify the title
 335       if ( !ModifyMenu(hMenu, 0u,
 336                        MF_BYPOSITION | MF_STRING,
 337                        (unsigned)idMenuTitle, m_title) )
 338       {
 339         wxLogLastError("ModifyMenu");
 340       }
 341     }
 342   }
 343
 344   // TODO use SetMenuItemInfo(MFS_DEFAULT) to put it in bold face
 345 }
 346
 347 const wxString wxMenu::GetTitle() const
 348 {
 349    return m_title;
 350 }
 351
 352 void wxMenu::SetLabel(int Id, const wxString& label)
 353 {
 354   wxMenuItem *item = FindItemForId(Id) ;
 355   if (item==NULL)
 356     return;
 357
 358   if (item->GetSubMenu()==NULL)
 359   {
 360     if (m_hMenu)
 361     {
 362       UINT was_flag = GetMenuState((HMENU)m_hMenu,Id,MF_BYCOMMAND) ;
 363       ModifyMenu((HMENU)m_hMenu,Id,MF_BYCOMMAND|MF_STRING|was_flag,Id,(const char *)label) ;
 364     }
 365     else if (m_savehMenu)
 366     {
 367       UINT was_flag = GetMenuState((HMENU)m_savehMenu,Id,MF_BYCOMMAND) ;
 368       ModifyMenu((HMENU)m_savehMenu,Id,MF_BYCOMMAND|MF_STRING|was_flag,Id,(const char *)label) ;
 369     }
 370   }
 371   else
 372   {
 373     wxMenu *father = item->GetSubMenu()->m_topLevelMenu ;
 374     wxNode *node = father->m_menuItems.First() ;
 375     int i = 0 ;
 376     while (node)
 377     {
 378       wxMenuItem *matched = (wxMenuItem*)node->Data() ;
 379       if (matched==item)
 380         break ;
 381       i++ ;
 382       node = node->Next() ;
 383     }
 384     // Here, we have the position.
 385     ModifyMenu((HMENU)father->m_savehMenu,i,
 386                MF_BYPOSITION|MF_STRING|MF_POPUP,
 387                (UINT)item->GetSubMenu()->m_savehMenu,(const char *)label) ;
 388   }
 389   item->SetName(label);
 390 }
 391
 392 wxString wxMenu::GetLabel(int id) const
 393 {
 394 /*
 395   static char tmp[128] ;
 396   int len;
 397   if (m_hMenu)
 398     len = GetMenuString((HMENU)m_hMenu,Id,tmp,WXSIZEOF(tmp) - 1,MF_BYCOMMAND);
 399   else if (m_savehMenu)
 400     len = GetMenuString((HMENU)m_savehMenu,Id,tmp,WXSIZEOF(tmp) - 1,MF_BYCOMMAND);
 401   else
 402     len = 0 ;
 403   tmp[len] = '\0' ;
 404   return wxString(tmp) ;
 405
 406 */
 407     wxMenuItem *pItem = FindItemForId(id) ;
 408     if (pItem)
 409         return pItem->GetName() ;
 410     else
 411         return wxEmptyString;
 412 }
 413
 414 bool wxMenu::MSWCommand(WXUINT WXUNUSED(param), WXWORD id)
 415 {
 416   wxCommandEvent event(wxEVT_COMMAND_MENU_SELECTED);
 417   event.SetEventObject( this );
 418   event.SetId( id );
 419   event.SetInt( id );
 420   ProcessCommand(event);
 421   return TRUE;
 422 }
 423
 424 // Finds the item id matching the given string, -1 if not found.
 425 int wxMenu::FindItem (const wxString& itemString) const
 426 {
 427   char buf1[200];
 428   char buf2[200];
 429   wxStripMenuCodes ((char *)(const char *)itemString, buf1);
 430
 431   for (wxNode * node = m_menuItems.First (); node; node = node->Next ())
 432     {
 433       wxMenuItem *item = (wxMenuItem *) node->Data ();
 434       if (item->GetSubMenu())
 435       {
 436         int ans = item->GetSubMenu()->FindItem(itemString);
 437         if (ans > -1)
 438           return ans;
 439       }
 440       if ( !item->IsSeparator() )
 441       {
 442         wxStripMenuCodes((char *)item->GetName().c_str(), buf2);
 443         if (strcmp(buf1, buf2) == 0)
 444           return item->GetId();
 445       }
 446     }
 447
 448   return -1;
 449 }
 450
 451 wxMenuItem *wxMenu::FindItemForId(int itemId, wxMenu ** itemMenu) const
 452 {
 453   if (itemMenu)
 454     *itemMenu = NULL;
 455   for (wxNode * node = m_menuItems.First (); node; node = node->Next ())
 456   {
 457     wxMenuItem *item = (wxMenuItem *) node->Data ();
 458
 459     if (item->GetId() == itemId)
 460     {
 461       if (itemMenu)
 462         *itemMenu = (wxMenu *) this;
 463       return item;
 464     }
 465
 466     if (item->GetSubMenu())
 467     {
 468       wxMenuItem *ans = item->GetSubMenu()->FindItemForId (itemId, itemMenu);
 469       if (ans)
 470         return ans;
 471     }
 472   }
 473
 474   if (itemMenu)
 475     *itemMenu = NULL;
 476   return NULL;
 477 }
 478
 479 void wxMenu::SetHelpString(int itemId, const wxString& helpString)
 480 {
 481   wxMenuItem *item = FindItemForId (itemId);
 482   if (item)
 483     item->SetHelp(helpString);
 484 }
 485
 486 wxString wxMenu::GetHelpString (int itemId) const
 487 {
 488   wxMenuItem *item = FindItemForId (itemId);
 489   wxString str("");
 490   return (item == NULL) ? str : item->GetHelp();
 491 }
 492
 493 void wxMenu::ProcessCommand(wxCommandEvent & event)
 494 {
 495   bool processed = FALSE;
 496
 497   // Try a callback
 498   if (m_callback)
 499   {
 500       (void)(*(m_callback))(*this, event);
 501       processed = TRUE;
 502   }
 503
 504   // Try the menu's event handler
 505   if ( !processed && GetEventHandler())
 506   {
 507       processed = GetEventHandler()->ProcessEvent(event);
 508   }
 509
 510   // Try the window the menu was popped up from (and up
 511   // through the hierarchy)
 512   if ( !processed && GetInvokingWindow())
 513     processed = GetInvokingWindow()->GetEventHandler()->ProcessEvent(event);
 514 }
 515
 516 extern wxMenu *wxCurrentPopupMenu;
 517 bool wxWindow::PopupMenu(wxMenu *menu, int x, int y)
 518 {
 519   menu->SetInvokingWindow(this);
 520
 521   HWND hWnd = (HWND) GetHWND();
 522   HMENU hMenu = (HMENU)menu->m_hMenu;
 523   POINT point;
 524   point.x = x;
 525   point.y = y;
 526   ::ClientToScreen(hWnd, &point);
 527   wxCurrentPopupMenu = menu;
 528   ::TrackPopupMenu(hMenu, TPM_RIGHTBUTTON, point.x, point.y, 0, hWnd, NULL);
 529   wxYield();
 530   wxCurrentPopupMenu = NULL;
 531
 532   menu->SetInvokingWindow(NULL);
 533
 534   return TRUE;
 535 }
 536
 537 // Menu Bar
 538 wxMenuBar::wxMenuBar()
 539 {
 540   m_eventHandler = this;
 541
 542   m_menuCount = 0;
 543   m_menus = NULL;
 544   m_titles = NULL;
 545   m_menuBarFrame = NULL;
 546   m_hMenu = 0;
 547 }
 548
 549 wxMenuBar::wxMenuBar(int N, wxMenu *Menus[], const wxString Titles[])
 550 {
 551   m_eventHandler = this;
 552   m_menuCount = N;
 553   m_menus = Menus;
 554   m_titles = new wxString[N];
 555   int i;
 556   for ( i = 0; i < N; i++ )
 557         m_titles[i] = Titles[i];
 558   m_menuBarFrame = NULL;
 559   for (i = 0; i < N; i++)
 560     m_menus[i]->m_menuBar = (wxMenuBar *) this;
 561
 562   m_hMenu = 0;
 563 }
 564
 565 wxMenuBar::~wxMenuBar()
 566 {
 567   // In fact, don't want menu to be destroyed before MDI
 568   // shuffling has taken place. Let it be destroyed
 569   // automatically when the window is destroyed.
 570
 571 //  DestroyMenu(menu);
 572 //  m_hMenu = NULL;
 573
 574   int i;
 575 /*
 576   // See remarks in ::~wxMenu() method
 577   // BEWARE - this may interfere with MDI fixes, so
 578   // may need to remove
 579   int N = 0 ;
 580
 581   if (m_menuBarFrame && ((m_menuBarFrame->GetWindowStyleFlag() & wxSDI) == wxSDI))
 582   {
 583     if (menu)
 584       N = GetMenuItemCount(menu) ;
 585     for (i = N-1; i >= 0; i--)
 586       RemoveMenu(menu, i, MF_BYPOSITION);
 587   }
 588 */
 589   for (i = 0; i < m_menuCount; i++)
 590   {
 591     delete m_menus[i];
 592   }
 593   delete[] m_menus;
 594   delete[] m_titles;
 595
 596 /* Don't destroy menu here, in case we're MDI and
 597    need to do some shuffling with VALID menu handles.
 598   if (menu)
 599     DestroyMenu(menu);
 600   m_hMenu = 0;
 601 */
 602 }
 603
 604 // Must only be used AFTER menu has been attached to frame,
 605 // otherwise use individual menus to enable/disable items
 606 void wxMenuBar::Enable(int Id, bool Flag)
 607 {
 608   int ms_flag;
 609   if (Flag)
 610     ms_flag = MF_ENABLED;
 611   else
 612     ms_flag = MF_GRAYED;
 613
 614   wxMenu *itemMenu = NULL;
 615   wxMenuItem *item = FindItemForId(Id, &itemMenu) ;
 616   if (!item)
 617     return;
 618
 619   if (itemMenu->m_hMenu)
 620     EnableMenuItem((HMENU)itemMenu->m_hMenu, Id, MF_BYCOMMAND | ms_flag);
 621   else if (itemMenu->m_savehMenu)
 622     EnableMenuItem((HMENU)itemMenu->m_savehMenu, Id, MF_BYCOMMAND | ms_flag);
 623
 624 }
 625
 626 void wxMenuBar::EnableTop(int pos, bool flag)
 627 {
 628   int ms_flag;
 629   if (flag)
 630     ms_flag = MF_ENABLED;
 631   else
 632     ms_flag = MF_GRAYED;
 633
 634   EnableMenuItem((HMENU)m_hMenu, pos, MF_BYPOSITION | ms_flag);
 635   DrawMenuBar((HWND) m_menuBarFrame->GetHWND()) ;
 636 }
 637
 638 // Must only be used AFTER menu has been attached to frame,
 639 // otherwise use individual menus
 640 void wxMenuBar::Check(int Id, bool Flag)
 641 {
 642   wxMenu *itemMenu = NULL;
 643   wxMenuItem *item = FindItemForId(Id, &itemMenu) ;
 644   if (!item)
 645     return;
 646
 647   if (!item->IsCheckable())
 648     return ;
 649   int ms_flag;
 650   if (Flag)
 651     ms_flag = MF_CHECKED;
 652   else
 653     ms_flag = MF_UNCHECKED;
 654
 655   if (itemMenu->m_hMenu)
 656     CheckMenuItem((HMENU)itemMenu->m_hMenu, Id, MF_BYCOMMAND | ms_flag);
 657   else if (itemMenu->m_savehMenu)
 658     CheckMenuItem((HMENU)itemMenu->m_savehMenu, Id, MF_BYCOMMAND | ms_flag);
 659
 660 //  CheckMenuItem((HMENU)m_hMenu, Id, MF_BYCOMMAND | ms_flag);
 661 }
 662
 663 bool wxMenuBar::Checked(int Id) const
 664 {
 665   wxMenu *itemMenu = NULL;
 666   wxMenuItem *item = FindItemForId(Id, &itemMenu) ;
 667   if (!item)
 668     return FALSE;
 669
 670   int Flag = 0;
 671
 672   if (itemMenu->m_hMenu)
 673     Flag=GetMenuState((HMENU)itemMenu->m_hMenu, Id, MF_BYCOMMAND) ;
 674   else if (itemMenu->m_savehMenu)
 675     Flag=GetMenuState((HMENU)itemMenu->m_savehMenu, Id, MF_BYCOMMAND) ;
 676
 677 //  Flag=GetMenuState((HMENU)m_hMenu, Id, MF_BYCOMMAND) ;
 678
 679   if (Flag&MF_CHECKED)
 680     return TRUE ;
 681   else
 682     return FALSE ;
 683 }
 684
 685 bool wxMenuBar::Enabled(int Id) const
 686 {
 687   wxMenu *itemMenu = NULL;
 688   wxMenuItem *item = FindItemForId(Id, &itemMenu) ;
 689   if (!item)
 690     return FALSE;
 691
 692   int Flag ;
 693
 694   if (itemMenu->m_hMenu)
 695     Flag=GetMenuState((HMENU)itemMenu->m_hMenu, Id, MF_BYCOMMAND) ;
 696   else if (itemMenu->m_savehMenu)
 697     Flag=GetMenuState((HMENU)itemMenu->m_savehMenu, Id, MF_BYCOMMAND) ;
 698
 699   if (Flag&MF_ENABLED)
 700     return TRUE ;
 701   else
 702     return FALSE ;
 703 }
 704
 705
 706 void wxMenuBar::SetLabel(int Id, const wxString& label)
 707 {
 708   wxMenu *itemMenu = NULL;
 709   wxMenuItem *item = FindItemForId(Id, &itemMenu) ;
 710
 711   if (!item)
 712     return;
 713
 714   if (itemMenu->m_hMenu)
 715   {
 716     UINT was_flag = GetMenuState((HMENU)itemMenu->m_hMenu,Id,MF_BYCOMMAND) ;
 717     ModifyMenu((HMENU)itemMenu->m_hMenu,Id,MF_BYCOMMAND|MF_STRING|was_flag,Id,(const char *)label) ;
 718   }
 719   else if (itemMenu->m_savehMenu)
 720   {
 721     UINT was_flag = GetMenuState((HMENU)itemMenu->m_savehMenu,Id,MF_BYCOMMAND) ;
 722     ModifyMenu((HMENU)itemMenu->m_savehMenu,Id,MF_BYCOMMAND|MF_STRING|was_flag,Id,(const char *)label) ;
 723   }
 724 }
 725
 726 wxString wxMenuBar::GetLabel(int Id) const
 727 {
 728   wxMenu *itemMenu = NULL;
 729   wxMenuItem *item = FindItemForId(Id, &itemMenu) ;
 730
 731   if (!item)
 732     return wxString("");
 733
 734   static char tmp[128] ;
 735   int len = 0;
 736   if (itemMenu->m_hMenu)
 737   {
 738     len = GetMenuString((HMENU)itemMenu->m_hMenu,Id,tmp,127,MF_BYCOMMAND) ;
 739   }
 740   else if (itemMenu->m_savehMenu)
 741   {
 742     len = GetMenuString((HMENU)itemMenu->m_savehMenu,Id,tmp,127,MF_BYCOMMAND) ;
 743   }
 744
 745 //  int len = GetMenuString((HMENU)m_hMenu,Id,tmp,127,MF_BYCOMMAND) ;
 746   tmp[len] = '\0' ;
 747   return wxString(tmp) ;
 748 }
 749
 750 void wxMenuBar::SetLabelTop(int pos, const wxString& label)
 751 {
 752   UINT was_flag = GetMenuState((HMENU)m_hMenu,pos,MF_BYPOSITION) ;
 753   if (was_flag&MF_POPUP)
 754   {
 755     was_flag &= 0xff ;
 756     HMENU popup = GetSubMenu((HMENU)m_hMenu,pos) ;
 757     ModifyMenu((HMENU)m_hMenu,pos,MF_BYPOSITION|MF_STRING|was_flag,(UINT)popup,(const char *)label) ;
 758   }
 759   else
 760     ModifyMenu((HMENU)m_hMenu,pos,MF_BYPOSITION|MF_STRING|was_flag,pos,(const char *)label) ;
 761 }
 762
 763 wxString wxMenuBar::GetLabelTop(int pos) const
 764 {
 765   static char tmp[128] ;
 766   int len = GetMenuString((HMENU)m_hMenu,pos,tmp,127,MF_BYPOSITION) ;
 767   tmp[len] = '\0' ;
 768   return wxString(tmp);
 769 }
 770
 771 bool wxMenuBar::OnDelete(wxMenu *a_menu, int pos)
 772 {
 773   if (!m_menuBarFrame)
 774          return TRUE;
 775
 776   if (RemoveMenu((HMENU)m_hMenu, (UINT)pos, MF_BYPOSITION)) {
 777          m_menus[pos]->m_hMenu = m_menus[pos]->m_savehMenu;
 778          m_menus[pos]->m_savehMenu = 0;
 779
 780          if (m_menuBarFrame) {
 781                 DrawMenuBar((HWND) m_menuBarFrame->GetHWND()) ;
 782          }
 783
 784          return TRUE;
 785   }
 786
 787   return FALSE;
 788 }
 789
 790 bool wxMenuBar::OnAppend(wxMenu *a_menu, const char *title)
 791 {
 792   if (!a_menu->m_hMenu)
 793          return FALSE;
 794
 795   if (!m_menuBarFrame)
 796          return TRUE;
 797
 798   a_menu->m_savehMenu = a_menu->m_hMenu;
 799   a_menu->m_hMenu = 0;
 800
 801   AppendMenu((HMENU)m_hMenu, MF_POPUP | MF_STRING, (UINT)a_menu->m_savehMenu, title);
 802
 803   DrawMenuBar((HWND) m_menuBarFrame->GetHWND());
 804
 805   return TRUE;
 806 }
 807
 808 void wxMenuBar::Append (wxMenu * menu, const wxString& title)
 809 {
 810   if (!OnAppend(menu, title))
 811          return;
 812
 813   m_menuCount ++;
 814   wxMenu **new_menus = new wxMenu *[m_menuCount];
 815   wxString *new_titles = new wxString[m_menuCount];
 816   int i;
 817
 818   for (i = 0; i < m_menuCount - 1; i++)
 819          {
 820                 new_menus[i] = m_menus[i];
 821                 m_menus[i] = NULL;
 822                 new_titles[i] = m_titles[i];
 823                 m_titles[i] = "";
 824          }
 825   if (m_menus)
 826          {
 827                 delete[]m_menus;
 828                 delete[]m_titles;
 829          }
 830   m_menus = new_menus;
 831   m_titles = new_titles;
 832
 833   m_menus[m_menuCount - 1] = (wxMenu *)menu;
 834   m_titles[m_menuCount - 1] = title;
 835
 836   ((wxMenu *)menu)->m_menuBar = (wxMenuBar *) this;
 837   ((wxMenu *)menu)->SetParent(this);
 838 }
 839
 840 void wxMenuBar::Delete(wxMenu * menu, int i)
 841 {
 842   int j;
 843   int ii = (int) i;
 844
 845   if (menu != 0) {
 846          for (ii = 0; ii < m_menuCount; ii++) {
 847                 if (m_menus[ii] == menu)
 848         break;
 849          }
 850          if (ii >= m_menuCount)
 851                 return;
 852   } else {
 853          if (ii < 0 || ii >= m_menuCount)
 854                 return;
 855          menu = m_menus[ii];
 856   }
 857
 858   if (!OnDelete(menu, ii))
 859          return;
 860
 861   menu->SetParent(NULL);
 862
 863   -- m_menuCount;
 864   for (j = ii; j < m_menuCount; j++) {
 865          m_menus[j] = m_menus[j + 1];
 866          m_titles[j] = m_titles[j + 1];
 867   }
 868 }
 869
 870 // Find the menu menuString, item itemString, and return the item id.
 871 // Returns -1 if none found.
 872 int wxMenuBar::FindMenuItem (const wxString& menuString, const wxString& itemString) const
 873 {
 874   char buf1[200];
 875   char buf2[200];
 876   wxStripMenuCodes ((char *)(const char *)menuString, buf1);
 877   int i;
 878   for (i = 0; i < m_menuCount; i++)
 879     {
 880       wxStripMenuCodes ((char *)(const char *)m_titles[i], buf2);
 881       if (strcmp (buf1, buf2) == 0)
 882         return m_menus[i]->FindItem (itemString);
 883     }
 884   return -1;
 885 }
 886
 887 wxMenuItem *wxMenuBar::FindItemForId (int Id, wxMenu ** itemMenu) const
 888 {
 889   if (itemMenu)
 890     *itemMenu = NULL;
 891
 892   wxMenuItem *item = NULL;
 893   int i;
 894   for (i = 0; i < m_menuCount; i++)
 895   {
 896     item = m_menus[i]->FindItemForId (Id, itemMenu);
 897     if (item)
 898       return item;
 899   }
 900   return NULL;
 901 }
 902
 903 void wxMenuBar::SetHelpString (int Id, const wxString& helpString)
 904 {
 905   int i;
 906   for (i = 0; i < m_menuCount; i++)
 907     {
 908       if (m_menus[i]->FindItemForId (Id))
 909         {
 910           m_menus[i]->SetHelpString (Id, helpString);
 911           return;
 912         }
 913     }
 914 }
 915
 916 wxString wxMenuBar::GetHelpString (int Id) const
 917 {
 918   int i;
 919   for (i = 0; i < m_menuCount; i++)
 920     {
 921       if (m_menus[i]->FindItemForId (Id))
 922             return wxString(m_menus[i]->GetHelpString (Id));
 923     }
 924   return wxString("");
 925 }
 926
 927 wxWindow *wxMenu::GetWindow() const
 928 {
 929   if ( m_pInvokingWindow != NULL )
 930     return m_pInvokingWindow;
 931   if ( m_menuBar != NULL)
 932     return m_menuBar->m_menuBarFrame;
 933   return NULL;
 934 }
 935
 936 WXHMENU wxMenu::GetHMenu() const
 937 {
 938   if ( m_hMenu != 0 )
 939     return m_hMenu;
 940   else if ( m_savehMenu != 0 )
 941     return m_savehMenu;
 942
 943   return 0;
 944 }
 945