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   if (item)
 490     return item->GetHelp();
 491   else
 492     return wxEmptyString;
 493 }
 494
 495 void wxMenu::ProcessCommand(wxCommandEvent & event)
 496 {
 497   bool processed = FALSE;
 498
 499   // Try a callback
 500   if (m_callback)
 501   {
 502       (void)(*(m_callback))(*this, event);
 503       processed = TRUE;
 504   }
 505
 506   // Try the menu's event handler
 507   if ( !processed && GetEventHandler())
 508   {
 509       processed = GetEventHandler()->ProcessEvent(event);
 510   }
 511
 512   // Try the window the menu was popped up from (and up
 513   // through the hierarchy)
 514   if ( !processed && GetInvokingWindow())
 515     processed = GetInvokingWindow()->GetEventHandler()->ProcessEvent(event);
 516 }
 517
 518 extern wxMenu *wxCurrentPopupMenu;
 519 bool wxWindow::PopupMenu(wxMenu *menu, int x, int y)
 520 {
 521   menu->SetInvokingWindow(this);
 522
 523   HWND hWnd = (HWND) GetHWND();
 524   HMENU hMenu = (HMENU)menu->m_hMenu;
 525   POINT point;
 526   point.x = x;
 527   point.y = y;
 528   ::ClientToScreen(hWnd, &point);
 529   wxCurrentPopupMenu = menu;
 530   ::TrackPopupMenu(hMenu, TPM_RIGHTBUTTON, point.x, point.y, 0, hWnd, NULL);
 531   wxYield();
 532   wxCurrentPopupMenu = NULL;
 533
 534   menu->SetInvokingWindow(NULL);
 535
 536   return TRUE;
 537 }
 538
 539 // Menu Bar
 540 wxMenuBar::wxMenuBar()
 541 {
 542   m_eventHandler = this;
 543
 544   m_menuCount = 0;
 545   m_menus = NULL;
 546   m_titles = NULL;
 547   m_menuBarFrame = NULL;
 548   m_hMenu = 0;
 549 }
 550
 551 wxMenuBar::wxMenuBar(int N, wxMenu *Menus[], const wxString Titles[])
 552 {
 553   m_eventHandler = this;
 554   m_menuCount = N;
 555   m_menus = Menus;
 556   m_titles = new wxString[N];
 557   int i;
 558   for ( i = 0; i < N; i++ )
 559         m_titles[i] = Titles[i];
 560   m_menuBarFrame = NULL;
 561   for (i = 0; i < N; i++)
 562     m_menus[i]->m_menuBar = (wxMenuBar *) this;
 563
 564   m_hMenu = 0;
 565 }
 566
 567 wxMenuBar::~wxMenuBar()
 568 {
 569   // In fact, don't want menu to be destroyed before MDI
 570   // shuffling has taken place. Let it be destroyed
 571   // automatically when the window is destroyed.
 572
 573 //  DestroyMenu(menu);
 574 //  m_hMenu = NULL;
 575
 576   int i;
 577 /*
 578   // See remarks in ::~wxMenu() method
 579   // BEWARE - this may interfere with MDI fixes, so
 580   // may need to remove
 581   int N = 0 ;
 582
 583   if (m_menuBarFrame && ((m_menuBarFrame->GetWindowStyleFlag() & wxSDI) == wxSDI))
 584   {
 585     if (menu)
 586       N = GetMenuItemCount(menu) ;
 587     for (i = N-1; i >= 0; i--)
 588       RemoveMenu(menu, i, MF_BYPOSITION);
 589   }
 590 */
 591   for (i = 0; i < m_menuCount; i++)
 592   {
 593     delete m_menus[i];
 594   }
 595   delete[] m_menus;
 596   delete[] m_titles;
 597
 598 /* Don't destroy menu here, in case we're MDI and
 599    need to do some shuffling with VALID menu handles.
 600   if (menu)
 601     DestroyMenu(menu);
 602   m_hMenu = 0;
 603 */
 604 }
 605
 606 // Must only be used AFTER menu has been attached to frame,
 607 // otherwise use individual menus to enable/disable items
 608 void wxMenuBar::Enable(int Id, bool Flag)
 609 {
 610   int ms_flag;
 611   if (Flag)
 612     ms_flag = MF_ENABLED;
 613   else
 614     ms_flag = MF_GRAYED;
 615
 616   wxMenu *itemMenu = NULL;
 617   wxMenuItem *item = FindItemForId(Id, &itemMenu) ;
 618   if (!item)
 619     return;
 620
 621   if (itemMenu->m_hMenu)
 622     EnableMenuItem((HMENU)itemMenu->m_hMenu, Id, MF_BYCOMMAND | ms_flag);
 623   else if (itemMenu->m_savehMenu)
 624     EnableMenuItem((HMENU)itemMenu->m_savehMenu, Id, MF_BYCOMMAND | ms_flag);
 625
 626 }
 627
 628 void wxMenuBar::EnableTop(int pos, bool flag)
 629 {
 630   int ms_flag;
 631   if (flag)
 632     ms_flag = MF_ENABLED;
 633   else
 634     ms_flag = MF_GRAYED;
 635
 636   EnableMenuItem((HMENU)m_hMenu, pos, MF_BYPOSITION | ms_flag);
 637   DrawMenuBar((HWND) m_menuBarFrame->GetHWND()) ;
 638 }
 639
 640 // Must only be used AFTER menu has been attached to frame,
 641 // otherwise use individual menus
 642 void wxMenuBar::Check(int Id, bool Flag)
 643 {
 644   wxMenu *itemMenu = NULL;
 645   wxMenuItem *item = FindItemForId(Id, &itemMenu) ;
 646   if (!item)
 647     return;
 648
 649   if (!item->IsCheckable())
 650     return ;
 651   int ms_flag;
 652   if (Flag)
 653     ms_flag = MF_CHECKED;
 654   else
 655     ms_flag = MF_UNCHECKED;
 656
 657   if (itemMenu->m_hMenu)
 658     CheckMenuItem((HMENU)itemMenu->m_hMenu, Id, MF_BYCOMMAND | ms_flag);
 659   else if (itemMenu->m_savehMenu)
 660     CheckMenuItem((HMENU)itemMenu->m_savehMenu, Id, MF_BYCOMMAND | ms_flag);
 661
 662 //  CheckMenuItem((HMENU)m_hMenu, Id, MF_BYCOMMAND | ms_flag);
 663 }
 664
 665 bool wxMenuBar::Checked(int Id) const
 666 {
 667   wxMenu *itemMenu = NULL;
 668   wxMenuItem *item = FindItemForId(Id, &itemMenu) ;
 669   if (!item)
 670     return FALSE;
 671
 672   int Flag = 0;
 673
 674   if (itemMenu->m_hMenu)
 675     Flag=GetMenuState((HMENU)itemMenu->m_hMenu, Id, MF_BYCOMMAND) ;
 676   else if (itemMenu->m_savehMenu)
 677     Flag=GetMenuState((HMENU)itemMenu->m_savehMenu, Id, MF_BYCOMMAND) ;
 678
 679 //  Flag=GetMenuState((HMENU)m_hMenu, Id, MF_BYCOMMAND) ;
 680
 681   if (Flag&MF_CHECKED)
 682     return TRUE ;
 683   else
 684     return FALSE ;
 685 }
 686
 687 bool wxMenuBar::Enabled(int Id) const
 688 {
 689   wxMenu *itemMenu = NULL;
 690   wxMenuItem *item = FindItemForId(Id, &itemMenu) ;
 691   if (!item)
 692     return FALSE;
 693
 694   int Flag ;
 695
 696   if (itemMenu->m_hMenu)
 697     Flag=GetMenuState((HMENU)itemMenu->m_hMenu, Id, MF_BYCOMMAND) ;
 698   else if (itemMenu->m_savehMenu)
 699     Flag=GetMenuState((HMENU)itemMenu->m_savehMenu, Id, MF_BYCOMMAND) ;
 700
 701   if (Flag&MF_ENABLED)
 702     return TRUE ;
 703   else
 704     return FALSE ;
 705 }
 706
 707
 708 void wxMenuBar::SetLabel(int Id, const wxString& label)
 709 {
 710   wxMenu *itemMenu = NULL;
 711   wxMenuItem *item = FindItemForId(Id, &itemMenu) ;
 712
 713   if (!item)
 714     return;
 715
 716   if (itemMenu->m_hMenu)
 717   {
 718     UINT was_flag = GetMenuState((HMENU)itemMenu->m_hMenu,Id,MF_BYCOMMAND) ;
 719     ModifyMenu((HMENU)itemMenu->m_hMenu,Id,MF_BYCOMMAND|MF_STRING|was_flag,Id,(const char *)label) ;
 720   }
 721   else if (itemMenu->m_savehMenu)
 722   {
 723     UINT was_flag = GetMenuState((HMENU)itemMenu->m_savehMenu,Id,MF_BYCOMMAND) ;
 724     ModifyMenu((HMENU)itemMenu->m_savehMenu,Id,MF_BYCOMMAND|MF_STRING|was_flag,Id,(const char *)label) ;
 725   }
 726 }
 727
 728 wxString wxMenuBar::GetLabel(int Id) const
 729 {
 730   wxMenu *itemMenu = NULL;
 731   wxMenuItem *item = FindItemForId(Id, &itemMenu) ;
 732
 733   if (!item)
 734     return wxString("");
 735
 736   static char tmp[128] ;
 737   int len = 0;
 738   if (itemMenu->m_hMenu)
 739   {
 740     len = GetMenuString((HMENU)itemMenu->m_hMenu,Id,tmp,127,MF_BYCOMMAND) ;
 741   }
 742   else if (itemMenu->m_savehMenu)
 743   {
 744     len = GetMenuString((HMENU)itemMenu->m_savehMenu,Id,tmp,127,MF_BYCOMMAND) ;
 745   }
 746
 747 //  int len = GetMenuString((HMENU)m_hMenu,Id,tmp,127,MF_BYCOMMAND) ;
 748   tmp[len] = '\0' ;
 749   return wxString(tmp) ;
 750 }
 751
 752 void wxMenuBar::SetLabelTop(int pos, const wxString& label)
 753 {
 754   UINT was_flag = GetMenuState((HMENU)m_hMenu,pos,MF_BYPOSITION) ;
 755   if (was_flag&MF_POPUP)
 756   {
 757     was_flag &= 0xff ;
 758     HMENU popup = GetSubMenu((HMENU)m_hMenu,pos) ;
 759     ModifyMenu((HMENU)m_hMenu,pos,MF_BYPOSITION|MF_STRING|was_flag,(UINT)popup,(const char *)label) ;
 760   }
 761   else
 762     ModifyMenu((HMENU)m_hMenu,pos,MF_BYPOSITION|MF_STRING|was_flag,pos,(const char *)label) ;
 763 }
 764
 765 wxString wxMenuBar::GetLabelTop(int pos) const
 766 {
 767   static char tmp[128] ;
 768   int len = GetMenuString((HMENU)m_hMenu,pos,tmp,127,MF_BYPOSITION) ;
 769   tmp[len] = '\0' ;
 770   return wxString(tmp);
 771 }
 772
 773 bool wxMenuBar::OnDelete(wxMenu *a_menu, int pos)
 774 {
 775   if (!m_menuBarFrame)
 776          return TRUE;
 777
 778   if (RemoveMenu((HMENU)m_hMenu, (UINT)pos, MF_BYPOSITION)) {
 779          m_menus[pos]->m_hMenu = m_menus[pos]->m_savehMenu;
 780          m_menus[pos]->m_savehMenu = 0;
 781
 782          if (m_menuBarFrame) {
 783                 DrawMenuBar((HWND) m_menuBarFrame->GetHWND()) ;
 784          }
 785
 786          return TRUE;
 787   }
 788
 789   return FALSE;
 790 }
 791
 792 bool wxMenuBar::OnAppend(wxMenu *a_menu, const char *title)
 793 {
 794   if (!a_menu->m_hMenu)
 795          return FALSE;
 796
 797   if (!m_menuBarFrame)
 798          return TRUE;
 799
 800   a_menu->m_savehMenu = a_menu->m_hMenu;
 801   a_menu->m_hMenu = 0;
 802
 803   AppendMenu((HMENU)m_hMenu, MF_POPUP | MF_STRING, (UINT)a_menu->m_savehMenu, title);
 804
 805   DrawMenuBar((HWND) m_menuBarFrame->GetHWND());
 806
 807   return TRUE;
 808 }
 809
 810 void wxMenuBar::Append (wxMenu * menu, const wxString& title)
 811 {
 812   if (!OnAppend(menu, title))
 813          return;
 814
 815   m_menuCount ++;
 816   wxMenu **new_menus = new wxMenu *[m_menuCount];
 817   wxString *new_titles = new wxString[m_menuCount];
 818   int i;
 819
 820   for (i = 0; i < m_menuCount - 1; i++)
 821          {
 822                 new_menus[i] = m_menus[i];
 823                 m_menus[i] = NULL;
 824                 new_titles[i] = m_titles[i];
 825                 m_titles[i] = "";
 826          }
 827   if (m_menus)
 828          {
 829                 delete[]m_menus;
 830                 delete[]m_titles;
 831          }
 832   m_menus = new_menus;
 833   m_titles = new_titles;
 834
 835   m_menus[m_menuCount - 1] = (wxMenu *)menu;
 836   m_titles[m_menuCount - 1] = title;
 837
 838   ((wxMenu *)menu)->m_menuBar = (wxMenuBar *) this;
 839   ((wxMenu *)menu)->SetParent(this);
 840 }
 841
 842 void wxMenuBar::Delete(wxMenu * menu, int i)
 843 {
 844   int j;
 845   int ii = (int) i;
 846
 847   if (menu != 0) {
 848          for (ii = 0; ii < m_menuCount; ii++) {
 849                 if (m_menus[ii] == menu)
 850         break;
 851          }
 852          if (ii >= m_menuCount)
 853                 return;
 854   } else {
 855          if (ii < 0 || ii >= m_menuCount)
 856                 return;
 857          menu = m_menus[ii];
 858   }
 859
 860   if (!OnDelete(menu, ii))
 861          return;
 862
 863   menu->SetParent(NULL);
 864
 865   -- m_menuCount;
 866   for (j = ii; j < m_menuCount; j++) {
 867          m_menus[j] = m_menus[j + 1];
 868          m_titles[j] = m_titles[j + 1];
 869   }
 870 }
 871
 872 // Find the menu menuString, item itemString, and return the item id.
 873 // Returns -1 if none found.
 874 int wxMenuBar::FindMenuItem (const wxString& menuString, const wxString& itemString) const
 875 {
 876   char buf1[200];
 877   char buf2[200];
 878   wxStripMenuCodes ((char *)(const char *)menuString, buf1);
 879   int i;
 880   for (i = 0; i < m_menuCount; i++)
 881     {
 882       wxStripMenuCodes ((char *)(const char *)m_titles[i], buf2);
 883       if (strcmp (buf1, buf2) == 0)
 884         return m_menus[i]->FindItem (itemString);
 885     }
 886   return -1;
 887 }
 888
 889 wxMenuItem *wxMenuBar::FindItemForId (int Id, wxMenu ** itemMenu) const
 890 {
 891   if (itemMenu)
 892     *itemMenu = NULL;
 893
 894   wxMenuItem *item = NULL;
 895   int i;
 896   for (i = 0; i < m_menuCount; i++)
 897   {
 898     item = m_menus[i]->FindItemForId (Id, itemMenu);
 899     if (item)
 900       return item;
 901   }
 902   return NULL;
 903 }
 904
 905 void wxMenuBar::SetHelpString (int Id, const wxString& helpString)
 906 {
 907   int i;
 908   for (i = 0; i < m_menuCount; i++)
 909     {
 910       if (m_menus[i]->FindItemForId (Id))
 911         {
 912           m_menus[i]->SetHelpString (Id, helpString);
 913           return;
 914         }
 915     }
 916 }
 917
 918 wxString wxMenuBar::GetHelpString (int Id) const
 919 {
 920   int i;
 921   for (i = 0; i < m_menuCount; i++)
 922     {
 923       if (m_menus[i]->FindItemForId (Id))
 924             return wxString(m_menus[i]->GetHelpString (Id));
 925     }
 926   return wxString("");
 927 }
 928
 929 wxWindow *wxMenu::GetWindow() const
 930 {
 931   if ( m_pInvokingWindow != NULL )
 932     return m_pInvokingWindow;
 933   if ( m_menuBar != NULL)
 934     return m_menuBar->m_menuBarFrame;
 935   return NULL;
 936 }
 937
 938 WXHMENU wxMenu::GetHMenu() const
 939 {
 940   if ( m_hMenu != 0 )
 941     return m_hMenu;
 942   else if ( m_savehMenu != 0 )
 943     return m_savehMenu;
 944
 945   return 0;
 946 }
 947